CN209678898U - A kind of welding axis and its rubber wheel assembly and universal wheel - Google Patents

Abstract

The utility model discloses a kind of welding axis, which includes the annular shape protrusion welding shaft body and being arranged in the middle part of welding shaft body, and welding shaft body is divided into welding axis left part and welding axis right part by circular protrusion.The side of circular protrusion is equipped with flange.It further include a kind of rubber wheel assembly, which includes foregoing welding axis.It further include a kind of universal wheel, which includes foregoing rubber wheel assembly.The welding axis can help to weld the center that welding axis is accurately positioned in operator, and fixed plate is fixed on to the middle part of welding axis like clockwork, avoid fixed plate from deviateing the center of welding axis, so that left rubber wheel and right rubber wheel uniform force.Meanwhile position limiting structure is had on the welding axis, it is possible to prevente effectively from the sliding of welding axis in the welding process, improves the accuracy of welding, accelerates speed of welding.

Description

A kind of welding axis and its rubber wheel assembly and universal wheel

Technical field

The utility model relates to wheelchair field more particularly to a kind of welding axis and its rubber wheel assembly and universal wheel.

Background technique

Wheelchair is common medical equipment, provides help for limbs disability and handicapped user, user can It performs physical exercise with the help of wheelchair, rehabilitation or participate in all kinds of social activity.Current wheelchair has steering inconvenience, radius of turn big The shortcomings that, it can not freely be turned in narrow space, seriously affect the usage experience of user, some wheel-chairs are with ten thousand thus The performance of wheelchair is improved to reach the technical effect that wheelchair arbitrarily turns to wheel substitution common wheel, promote wheelchair uses body It tests.

One, the welding axis in the prior art in the rubber wheel assembly of universal wheel is usually the smooth cylindrical body in surface.Solid When fixed board and welding axis are attached, it is difficult to position, it is not easy to the central point of welding axis is determined, so causing fixed plate and welding Welded connecting between axis deviates the center of welding axis, leads to the unbalance stress of left and right rubber wheel；Or it sends out in the welding process The sliding of raw welding axis, leads to that the welding is not firm, causes hidden danger of quality.

Two, anti-vibration structure is not provided in existing universal wheel.Axial torsion, motion stress when from left and right turn and Impact force has acted directly on all parts of existing universal wheel.The shaking of component, which results in, jolts, the friction between part and Collision generates noise, influences the comfort level of user.And torsion, stress and the impact force acted directly on each components is easily made At the strain of components, the service life of universal wheel is significantly reduced.

Three, the axis in the rubber wheel assembly of universal wheel and rubber wheel are usually attached by screw in the prior art, spiral shell Nail connection mostly uses manual connection, so time-consuming, effort, improves the production cost of universal wheel.Due to manual connection, for power Degree and elasticity are difficult to accurately control, so be easy to causeing the asymmetry of left rubber wheel and right rubber wheel, stress are caused to be concentrated, easily It strains, reduces the service life of rubber wheel.

Four, universal wheel in the prior art is due to largely using non-removable connection types such as welding, causing universal wheel It is whole non-dismountable.Non-removable structure leads to universal wheel assembling fashionable dress, and time-consuming；And the maintenance of single part can not be carried out And replacement causes a series of security risk so being unfavorable for safeguarding.Meanwhile the failure of a part can cause it is entire universal Wheel can not continue to use, to need replacing entire universal wheel, economic cost is high, and waste is serious.

Five, it is not provided with abrasion prompt feature on existing universal wheel, causes user can not be for whether replacing rubber Wheel makes the judgement of foundation.Some users cannot replace the rubber wheel having worn out in time, cause the dangerous hair such as skidding It is raw；Other user is excessively replaced as frequently as rubber wheel, causes unnecessary due to fearing the dangerous generation such as skidding Waste.

Utility model content

First technical problem to be solved in the utility model is to provide a kind of welding axis and its rubber wheel assembly and universal Wheel.The welding axis can help to weld the center that welding axis is accurately positioned in operator, and fixed plate is fixed like clockwork At the middle part of welding axis, fixed plate is avoided to deviate the center of welding axis, so that left rubber wheel and right rubber wheel uniform force.Together When, position limiting structure is had on the welding axis, it is possible to prevente effectively from the sliding of welding axis in the welding process, improves the accurate of welding Degree accelerates speed of welding.

For axis, in order to solve above-mentioned first technical problem, the utility model provides a kind of welding axis, the welding Axis includes the annular shape protrusion welding shaft body and being arranged in the middle part of welding shaft body, and circular protrusion will welding shaft body point For welding axis left part and welding axis right part.

The technical program includes welding shaft body and setting in the middle part of welding shaft body due to using a kind of welding axis Annular shape protrusion, circular protrusion will weld shaft body and is divided into welding axis left part and welds the technological means of axis right part, so Annular shape protrusion positioned at middle part provides operation planar for welding, is conducive to improve assembling production efficiency.

The side of circular protrusion is equipped with flange.

The technological means that the technical program is equipped with flange due to using the side of circular protrusion, flange limit rubber The movement of fixed plate is taken turns, so that welding position is clear, provides guarantee for precisely welding.

The left side of welding axis is provided with left blind hole, and internal screw thread, the central axis of left blind hole and weldering are provided on left blind hole hole wall The center overlapping of axles of spindle；And the right side for welding axis is provided with right blind hole, and internal screw thread is provided on right blind hole hole wall, right blind hole The center overlapping of axles of central axis and welding axis.

The technical program is provided with left blind hole due to using the left side of welding axis, is provided with interior spiral shell on left blind hole hole wall Line, the central axis of left blind hole and the center overlapping of axles of welding axis；And the right side for welding axis is provided with right blind hole, on right blind hole hole wall It is provided with internal screw thread, the technological means of the center overlapping of axles of the central axis and welding axis of right blind hole, so by using rubber wheel The fixed form that fixing screws are mutually threadedly coupled with left blind hole hole wall internal screw thread and right blind hole hole wall internal screw thread is further reinforced The fixation of rubber wheel and welding between centers, improves the stability of universal wheel, reduces rubber wheel and welds the shaking of between centers, effectively Reduce noise.

Welding axis includes the welding axis in big rubber wheel wheel shaft and the second small rubber wheel component in big rubber wheel assembly；Greatly The welding axis in big rubber wheel wheel shaft and the second small rubber wheel component in rubber wheel assembly is identical.

The technical program includes big rubber wheel wheel shaft and the second small rubber in big rubber wheel assembly due to using welding axis Welding axis in rubber tire component；The welding axis phase in big rubber wheel wheel shaft and the second small rubber wheel component in big rubber wheel assembly Same technological means advantageously reduces time so effectively reducing the type of part；It is a large amount of to use same welding Axis can reduce the price and use cost of single welding axis；The reuse of axis is welded, so that assembly repeats degree height, favorably In raising assembly and production efficiency.

For component, in order to solve above-mentioned first technical problem, the utility model provides a kind of rubber wheel assembly, Including as above welding axis, two rubber wheels, rubber wheel fixed plate, rubber wheel bearing and rubber wheel fixing screws；Rubber wheel is fixed Plate is fixedly connected with welding axis；Two rubber wheels pass through rubber wheel bearing and rubber with welding axis left part and welding axis right part respectively Take turns fixing screws connection；Rubber wheel includes second small in big rubber wheel and the second small rubber wheel component in big rubber wheel assembly Rubber wheel；Rubber wheel fixed plate includes the wheel in big rubber wheel fixed plate and the second small rubber wheel component in big rubber wheel assembly Axis fixing plate；Rubber wheel bearing includes the welding in big rubber wheel bearing and the second small rubber wheel component in big rubber wheel assembly Axle bearing；Rubber wheel fixing screws include in big rubber wheel fixing screws and the second small rubber wheel component in big rubber wheel assembly Fixing screws.

The technical program due to use a kind of rubber wheel assembly, including, as above weld axis, two rubber wheels, rubber wheels Fixed plate, rubber wheel bearing and rubber wheel fixing screws；Rubber wheel fixed plate is fixedly connected with welding axis；Two rubber wheel difference It is connected with welding axis left part with welding axis right part by rubber wheel bearing and rubber wheel fixing screws；Rubber wheel includes big rubber wheel The second small rubber wheel in big rubber wheel and the second small rubber wheel component in component；Rubber wheel fixed plate includes big rubber wheel group The wheel axis fixing plate in big rubber wheel fixed plate and the second small rubber wheel component in part；Rubber wheel bearing includes big rubber wheel group The welding axle bearing in big rubber wheel bearing and the second small rubber wheel component in part；Rubber wheel fixing screws include big rubber wheel The technological means of big rubber wheel fixing screws in component and the fixing screws in the second small rubber wheel component, so rubber wheel group The bilateral symmetry of part is good, consistency is high and stability is strong；And rubber wheel fixed plate, rubber wheel bearing, rubber wheel are fixed The reuse of screw is so that assembly repetition degree height, is conducive to improve assembly and production efficiency.

The front of rubber wheel fixed plate is provided with a through-hole, diameter and the annular shape protrusion in the middle part of welding shaft body of through-hole Outer diameter is corresponding；The inner surface of through-hole and the outer surface of circular protrusion fit.

The technical program is provided with a through-hole, the diameter and welding shaft body of through-hole due to the front using rubber wheel fixed plate The outer diameter of the annular shape protrusion at middle part is corresponding；The technological means that the outer surface of the inner surface of through-hole and circular protrusion fits, So the annular shape protrusion of welding axis and the through-hole of the fixed prelaminar part of rubber wheel are fixed to each other, so the annular shape for being located at middle part is convex It rises and provides operation planar for welding, so that welding position is clear, provide guarantee for precisely welding, be conducive to improve assembling effect Rate.

The outer diameter that the flange of circular raised side is arranged in is greater than the internal diameter of through-hole, and welding axis and rubber wheel fixed plate exist Unilateral side engages at flange；It welds axis and rubber wheel fixed plate is welded to connect, welding manner is laser welding.

Internal diameter of the outer diameter greater than through-hole of the flange of circular raised side, weldering are arranged in due to using for the technical program The unilateral side at flange engages spindle with rubber wheel fixed plate；It welds axis and rubber wheel fixed plate is welded to connect, welding manner is sharp The technological means of photocoagulation, so flange limits the movement of rubber wheel fixed plate, so that welding position is clear, for precisely welding Guarantee is provided, and laser welding can connect to precise high-efficiency rubber fixed plate and welding axis, improving production efficiency.

Two rubber wheels pass through welding axis left part respectively and weld the left and right sides that axis right part is mounted on rubber wheel fixed plate； Two rubber wheels pass through rubber wheel bearing respectively and connect with welding axis left part and welding axis right part；Weld the outer diameter and rubber wheel of axis The internal diameter of bearing inner ring is corresponding, and the outer surface for welding axis is fixedly connected with the inner surface of rubber wheel bearing inner ring；Weld axle bearing The outer diameter of outer ring and the internal diameter of rubber wheel are corresponding, and the outer surface of welding axle bearing outer ring is fixedly connected with the inner surface of rubber wheel.

Due to using, two rubber wheels pass through welding axis left part to the technical program respectively and welding axis right part is mounted on rubber The left and right sides of rubber tire fixed plate；Two rubber wheels pass through rubber wheel bearing and welding axis left part respectively and welding axis right part connects It connects；The outer diameter for welding axis is corresponding to the internal diameter of rubber wheel bearing inner ring, welds the interior of the outer surface of axis and rubber wheel bearing inner ring Surface is fixedly connected；Weld axle bearing outer ring outer diameter it is corresponding to the internal diameter of rubber wheel, weld axle bearing outer ring outer surface with The technological means that the inner surface of rubber wheel is fixedly connected, thus in rubber wheel assembly left and right rubber wheel it is well-symbolized, promoted The consistency and stability of rubber wheel assembly, while the use of axle bearing is welded because frictional force is small, so that rubber wheel can weld It is flexibly rotated in spindle.

Screw thread in rubber wheel fixing screws is matched with the internal screw thread in welding shaft end portion.

The technical program is matched due to using the screw thread in rubber wheel fixing screws with the internal screw thread in welding shaft end portion Technological means, so by using the fixed form that connect of internal screw thread of rubber wheel fixing screws and welding shaft end portion, into one It walks reinforced stock wheel and welds the fixation of between centers, improve the stability of universal wheel, reduce rubber wheel and weld the shaking of between centers, It is effectively reduced noise.

For universal wheel, in order to solve above-mentioned first technical problem, the utility model provides a kind of universal wheel packet Include rubber wheel assembly as above；Rubber wheel assembly includes big rubber wheel assembly and the second small rubber wheel component.

The technical program includes rubber wheel assembly as above due to using a kind of universal wheel；Rubber wheel assembly includes big rubber The technological means of wheel assembly and the second small rubber wheel component, so the bilateral symmetry of rubber wheel assembly is good, consistency is high simultaneously And stability is strong；And big rubber wheel assembly and the rubber wheel fixed plate in the second small rubber wheel component, rubber wheel bearing, rubber wheel Fixing screws are completely the same, so that assembly repeats degree height, are conducive to improve assembly and production efficiency.

Second technical problem to be solved in the utility model is to provide a kind of spring shock absorption structure and its universal wheel.The bullet Spring shock-damping structure effectively absorbs axial torsion, motion stress and impact force, to reduce the amplitude that each components shake.The bullet Spring shock-damping structure is effectively prevented jolting for wheelchair, mitigates components strain due to caused by torsion, stress and impact force, mentions High wheelchair uses the longevity people；The noise that the friction of wheelchair components and collision generate is reduced simultaneously, improves the comfort level of user.

For shock-damping structure, in order to solve above-mentioned second technical problem, the utility model provides a kind of spring and subtracts Shaking structure includes wheel shaft drive connection part, the first shock-resistant member and the first small rubber wheel component；First small rubber wheel component and wheel Axis drive connection part is connected by the first shock-resistant member.

It includes wheel shaft drive connection part, the first shock-resistant member and first that the technical program, which uses a kind of spring shock absorption structure, Small rubber wheel component；The technological means that first small rubber wheel component is connected with wheel shaft drive connection part by the first shock-resistant member, So the first shock-resistant member is mounted on universal wheel hub interior, vibration can be effectively absorbed and mitigate impact force, in protection ten thousand To while wheel, the comfort level of user is promoted.

First shock-resistant member includes spring and spring-support plate, and spring is fixedly connected with spring-support plate.

It includes spring and spring-support plate that the technical program, which uses the first shock-resistant member, and spring and spring-support plate are fixed The technological means of connection, so axial direction when spring-support plate and spring structure can effectively absorb universal wheel left and right turn is turned round Power, motion stress and overburden impact force protect drive shaft, promote the stability of universal wheel and reduce noise.

Spring-support plate is curved plate-like structure；Spring-support plate is by the lateral first small rubber wheel group of wheel shaft drive connection part Part side protrusion, wheel shaft drive connection part side are the inside of spring-support plate, and the first small rubber wheel components side is spring-support plate Outside, spring-support plate protrude from inside to outside.

The technical program uses spring-support plate as curved plate-like structure；Spring-support plate is by wheel shaft drive connection part side It is protruded to the first small rubber wheel components side, wheel shaft drive connection part side is the inside of spring-support plate, the first small rubber wheel component Side is the outside of spring-support plate, the technological means that spring-support plate protrudes from inside to outside, so spring-support plate can engage In the outer surface of wheel shaft drive connection part, the drive shaft in vibration and impact force protection wheel shaft drive connection part is preferably absorbed.

The inner end of spring is fixedly connected with spring-support plate, and tie point is overlapped with the central point of spring-support plate arcuate surface.

The inner end that the technical program uses spring is fixedly connected with spring-support plate, tie point and spring-support plate evagination The technological means that the central point in face is overlapped is conducive to spring absorption and comes from so spring to be limited in the middle part of spring-support plate Impact force in all directions.

Wheel shaft drive connection part is fixedly connected with the first shock-resistant member.

The technical program uses the technological means that wheel shaft drive connection part is fixedly connected with the first shock-resistant member, so the One shock-resistant member can effectively absorb the drive shaft in vibration and impact force protection wheel shaft drive connection part.

Wheel shaft drive connection part is equipped with groove；First shock-resistant member includes spring-support plate；Spring-support plate and groove It fastens, the bottom surface of the groove and inner concave curvature of spring-support plate is consistent, size is corresponding, the side wall and spring-support plate of groove Side gradient it is consistent, correspond to each other.

The technical program uses wheel shaft drive connection part and is equipped with groove；First shock-resistant member includes spring-support plate； Spring-support plate fastens with groove, the bottom surface of the groove and inner concave curvature of spring-support plate is consistent, size is corresponding, groove Side wall is consistent with the side gradient of spring-support plate, mutual corresponding technological means, and spring-support plate can be fastened on to wheel In the groove of axis drive connection part outer surface, the connection avoided between spring-support plate and wheel shaft drive connection part loosens, so that Spring can more efficiently absorb vibration and impact force.

First small rubber wheel component is fixedly connected with the first shock-resistant member.

The technical program uses the technological means that the first small rubber wheel component is fixedly connected with the first shock-resistant member, so First shock-resistant member can preferably absorb vibration and impact force from the first small rubber wheel component, effectively weaken and pass to The vibration of drive shaft in wheel shaft drive connection part and impact force, so that universal wheel is reliable and stable when driving and reduces shaking generation Noise.

First small rubber wheel component includes axle retainer；The tail portion of axle retainer be triangular pyramidal, the three of pyrometric cone A side is inwardly recessed；The tail end face of axle retainer is equipped with annular protrusions, the internal diameters of annular protrusions and spring it is outer Diameter is corresponding, and the outer end of spring is fixed in annular protrusions.

It includes axle retainer that the technical program, which uses the first small rubber wheel component,；The tail portion of axle retainer is triangle Three sides of taper, pyrometric cone are inwardly recessed；The tail end face of axle retainer is equipped with annular protrusions, annular protrusions Internal diameter is corresponding to the outer diameter of spring, and the outer end of spring is fixed on the technological means in annular protrusions, so annular protrusions Be set as spring expeditiously position assembling provide convenience, and spring with triangular pyramidal axle retainer tail portion connection compared with It is connect in plate structure, stability is higher, can mitigate the shaking of spring and spring-support plate, to play the mesh for reducing noise 's.

For universal wheel, in order to solve above-mentioned second technical problem, the utility model provides a kind of universal wheel packet Include spring shock absorption structure, the first outer stationary plates and the first internal fixation plate as above；First outer stationary plates and wheel shaft drive connection part can It is movably connected with, and the first internal fixation plate is movably connected with wheel shaft drive connection part；First outer stationary plates and the first small rubber Rubber tire component is fixedly connected, and the first internal fixation plate is fixedly connected with the first small rubber wheel component；First shock-resistant member is located at first Between outer stationary plates and the first internal fixation plate.

The technical program includes spring shock absorption structure as above, the first outer stationary plates and first due to using a kind of universal wheel Internal fixation plate；First outer stationary plates are movably connected with wheel shaft drive connection part, and the first internal fixation plate and wheel shaft driving connect Fitting is movably connected；First outer stationary plates are fixedly connected with the first small rubber wheel component, the first internal fixation plate and first small Rubber wheel assembly is fixedly connected；Technological means of first shock-resistant member between the first outer stationary plates and the first internal fixation plate, So the first shock-resistant member also can absorb vibration and impact force from the first outer stationary plates and the first internal fixation plate, effectively subtract Weak first outer stationary plates and the first internal fixation plate with respect to wheel shaft drive connection part shaking, thus the noise that reducing collisions generates.

Multiple card columns are provided on the lateral wall of wheel shaft drive connection part, the end face of card column is lower than wheel shaft drive connection part master The end face of body, the first outer stationary plates and the first internal fixation plate are provided centrally with circular through hole, the internal diameter and wheel shaft of circular through hole The outer diameter of drive connection part main body is corresponding；First outer stationary plates are connected together with wheel shaft drive connection part, and the first internal fixation plate It is connected together with wheel shaft drive connection part；Wheel shaft drive connection part is between the first outer stationary plates and the first internal fixation plate；The One small rubber wheel component includes axle retainer, and the tail portion of axle retainer is equipped with through-hole；First outer stationary plates are equipped with through-hole, the Through-hole on one outer stationary plates is corresponding with the through-hole of axle retainer tail portion；First internal fixation plate is equipped with through-hole, consolidates in first Through-hole on fixed board is corresponding with the through-hole of axle retainer tail portion；Universal wheel further includes screw, and screw sequentially passes through outside first Through-hole in fixed plate, the through-hole on the through-hole and the first internal fixation plate of axle retainer tail portion, axle retainer is fixed on Between first outer stationary plates and the first internal fixation plate, so that the first small rubber wheel component is fixed in the first outer stationary plates and first Between fixed plate.

The technical program is provided with multiple card columns, the end face of card column on the lateral wall due to using wheel shaft drive connection part Lower than the end face of wheel shaft drive connection part main body, the first outer stationary plates and the first internal fixation plate are provided centrally with circular through hole, The internal diameter of circular through hole is corresponding to the outer diameter of wheel shaft drive connection part main body；First outer stationary plates engage with wheel shaft drive connection part Connection, and the first internal fixation plate is connected together with wheel shaft drive connection part；Wheel shaft drive connection part be located at the first outer stationary plates with Between first internal fixation plate；First small rubber wheel component includes axle retainer, and the tail portion of axle retainer is equipped with through-hole；First Outer stationary plates are equipped with through-hole, and the through-hole on the first outer stationary plates is corresponding with the through-hole of axle retainer tail portion；It is fixed in first Plate is equipped with through-hole, and the through-hole on the first internal fixation plate is corresponding with the through-hole of axle retainer tail portion；Universal wheel further includes screw, Screw sequentially pass through through-hole on the first outer stationary plates, axle retainer tail portion through-hole and the first internal fixation plate on through-hole, Axle retainer is fixed between the first outer stationary plates and the first internal fixation plate, so that the first small rubber wheel component is fixed on Technological means between one outer stationary plates and the first internal fixation plate, so axle retainer is fixed with outer stationary plates and internal fixation plate Connection, the first shock-resistant member is fixedly connected with axle retainer, and the first shock-resistant member can be absorbed from outer stationary plates and interior solid The vibration of fixed board and impact force, and weaken the activity between outer stationary plates and internal fixation plate and wheel shaft drive connection part, it reduces universal The noise of wheel improves stability and comfort level when driving.

Second technical problem to be solved in the utility model is to provide a kind of foam-rubber cushion shock-damping structure and its universal wheel.It should Foam-rubber cushion shock-damping structure effectively absorbs axial torsion, motion stress and impact force, to reduce the amplitude that each components shake. The foam-rubber cushion shock-damping structure is effectively prevented jolting for wheelchair, mitigates components due to caused by torsion, stress and impact force Strain, that improves wheelchair uses the longevity people；The noise that the friction of wheelchair components and collision generate is reduced simultaneously, improves relaxing for user Appropriateness.

For shock-damping structure, in order to solve above-mentioned second technical problem, the utility model provides a kind of foam-rubber cushion Shock-damping structure includes wheel shaft drive connection part, the second shock-resistant member and limiting component；Second shock-resistant member is drivingly connected along wheel shaft Part is circumferentially arranged, and the second shock-resistant member is equipped with the mobile limiting section of the second shock-resistant member of limitation far from wheel shaft drive connection part side Part.

The technical program includes wheel shaft drive connection part, the second shock-resistant member due to using a kind of foam-rubber cushion shock-damping structure And limiting component；Second shock-resistant member is circumferentially arranged along wheel shaft drive connection part, and the second shock-resistant member is drivingly connected far from wheel shaft Part side is equipped with the technological means of the mobile limiting component of the second shock-resistant member of limitation, so the second shock-resistant member drives against wheel shaft Connector setting, effectively reduces axial torsion, motion stress and the impact force when universal wheel left and right turn, ensure that universal wheel Steady operating, and be effectively reduced part and generated noise mutually hit due to shaking.

Second shock-resistant member includes foam-rubber cushion and sponge support frame, and foam-rubber cushion is fixedly connected with sponge support frame.

The technical program includes foam-rubber cushion and sponge support frame due to using the second shock-resistant member, foam-rubber cushion and sponge branch The technological means that support is fixedly connected is being protected so foam-rubber cushion can effectively absorb universal wheel vibration and mitigate impact force While universal wheel, the comfort level of user is promoted.

Foam-rubber cushion is arc block structure, and the medial surface of foam-rubber cushion and the outside face curvature of foam-rubber cushion are consistent；Foam-rubber cushion by Wheel shaft drive connection part lateral Displacement component side protrusion, wheel shaft drive connection part side are the inside of foam-rubber cushion, and limiting component side is The outside of foam-rubber cushion, foam-rubber cushion protrude from inside to outside.

The technical program is due to using foam-rubber cushion as arc block structure, the medial surface of foam-rubber cushion and the outside of foam-rubber cushion Face curvature is consistent；Foam-rubber cushion is protruded by wheel shaft drive connection part lateral Displacement component side, and wheel shaft drive connection part side is foam-rubber cushion Inside, limiting component side be foam-rubber cushion outside, the technological means that foam-rubber cushion protrudes from inside to outside, so foam-rubber cushion can paste The setting of wheel shaft drive connection part is closed, the vibration generated when universal wheel operation and impact force are effectively absorbed, protection wheel shaft is drivingly connected Drive shaft in part, limiting component limits the movement of foam-rubber cushion, so that foam-rubber cushion is preferably absorbed from wheel hub connection component Vibration and impact force.

The main body of sponge support frame is curved plate-like structure, face curvature and face curvature on the outside of foam-rubber cushion on the inside of sponge support frame Accordingly, foam-rubber cushion lateral surface fits with sponge support frame medial surface；The both ends of sponge support frame are provided with convex to its medial surface Convex edge out, convex edge include the left convex edge that sponge support frame left end is arranged in and the right convex edge that sponge support frame right end is arranged in； Angle between left convex edge and the intersubjective angle of sponge support frame and foam-rubber cushion lateral surface and foam-rubber cushion left side is corresponding, right convex edge Angle between the intersubjective angle of sponge support frame and foam-rubber cushion lateral surface and foam-rubber cushion right side is corresponding；Sponge support frame is left The medial surface of convex edge and the left side of foam-rubber cushion fit, the right side phase of the medial surface and foam-rubber cushion of the right convex edge of sponge support frame Fitting；Foam-rubber cushion engages with sponge support frame.

The technical program uses the main body of sponge support frame as curved plate-like structure, on the inside of sponge support frame face curvature with Face curvature is corresponding on the outside of foam-rubber cushion, and foam-rubber cushion lateral surface fits with sponge support frame medial surface；The both ends of sponge support frame are set It is equipped with the convex edge protruded to its medial surface, convex edge includes that the left convex edge that sponge support frame left end is arranged in and setting are supported in sponge The right convex edge of frame right end；Between left convex edge and the intersubjective angle of sponge support frame and foam-rubber cushion lateral surface and foam-rubber cushion left side Angle is corresponding, the angle phase between right convex edge and the intersubjective angle of sponge support frame and foam-rubber cushion lateral surface and foam-rubber cushion right side It answers；The medial surface of the left convex edge of sponge support frame and the left side of foam-rubber cushion fit, the medial surface of the right convex edge of sponge support frame with The right side of foam-rubber cushion fits；The technological means that foam-rubber cushion engages with sponge support frame, so sponge support frame can be with sea Continuous fitting completely, sponge support frame by from limiting component vibration and impact force pass to foam-rubber cushion, foam-rubber cushion is effectively protected The drive shaft in wheel shaft drive connection part is protected, so that universal wheel is more stable in motion.

Wheel shaft drive connection part is fixedly connected with the second shock-resistant member.

The technological means that the technical program is fixedly connected due to using wheel shaft drive connection part with the second shock-resistant member, institute Motion stress, impact force and impact force can be absorbed with the second shock-resistant member, to protect the driving in wheel shaft drive connection part Axis so that universal wheel is more stable when driving, and effectively mitigates noise.

Wheel shaft drive connection part is equipped with groove；Second shock-resistant member includes foam-rubber cushion；Foam-rubber cushion fastens with groove, recessed The bottom surface of slot is consistent to the inside face curvature of foam-rubber cushion, size is corresponding, the left side wall of groove and the left side plane inclination of foam-rubber cushion Unanimously, it corresponds to each other；The right side wall of groove is consistent with the right side plane inclination of foam-rubber cushion, corresponds to each other；Foam-rubber cushion and groove mistake It is full of cooperation.

The technical program is equipped with groove due to using wheel shaft drive connection part；Second shock-resistant member includes foam-rubber cushion； Foam-rubber cushion fastens with groove, the bottom surface of the groove and inside face curvature of foam-rubber cushion is consistent, size is corresponding, the left side wall of groove with The left side plane inclination of foam-rubber cushion is consistent, corresponds to each other；The right side wall of groove is consistent with the right side plane inclination of foam-rubber cushion, mutual It is corresponding；The technological means of foam-rubber cushion and groove interference fit has so foam-rubber cushion is bonded with the outer surface of wheel shaft drive connection part Effect ground weakens vibration, torsion, stress and impact force suffered by wheel shaft drive connection part, to protect drive shaft even running.

For universal wheel, in order to solve above-mentioned second technical problem, the utility model provides a kind of universal wheel packet Include foam-rubber cushion shock-damping structure, the second outer stationary plates and the second internal fixation plate as above；Limiting component fits with the second shock-resistant member, Limit the movement of the second shock-resistant member；Limiting component is fixed between the second outer stationary plates and the second internal fixation plate.

The technical program includes foam-rubber cushion shock-damping structure as above, the second outer stationary plates and the due to using a kind of universal wheel Two internal fixation plates；Limiting component fits with the second shock-resistant member, limits the movement of the second shock-resistant member；Limiting component is fixed on Technological means between second outer stationary plates and the second internal fixation plate is pasted so the second shock-resistant member can preferably be absorbed with it The vibration from the second outer stationary plates and the second internal fixation plate that the limiting component of conjunction is transmitted is protected in wheel shaft drive connection part Drive shaft.

Limiting component is caging bolt or spacing bar；Second shock-resistant member includes foam-rubber cushion and sponge support frame；Sponge The lateral surface of support frame is equipped with columnar protrusions, and each sponge support frame includes four columnar protrusions；Every two columnar protrusions are One group, the left end of sponge support frame is arranged in one group of pillar, and the right end of sponge support frame, two groups of pillars are arranged in another group of pillar It is mutually symmetrical with；Distance between two pillars of each group is consistent, and the opposite flank of every group of two columnar protrusions forms an arc surface, The internal diameter of arc surface is corresponding with the outer diameter of caging bolt or spacing bar；Second outer stationary plates are equipped with through-hole, and second is solid outside Through-hole on fixed board is corresponding with caging bolt or spacing bar；And second internal fixation plate be equipped with through-hole, the second internal fixation plate On through-hole it is corresponding with caging bolt or spacing bar；Caging bolt sequentially passes through through-hole and second on the second outer stationary plates Through-hole on internal fixation plate, caging bolt are surrounded by arc surface；Alternatively, spacing bar both ends are respectively arranged with plug；Plug Diameter is less than the diameter of spacing bar ontology, and plug and spacing bar ontology are in step-like structure；Outside the diameter of plug and second The diameter of through-hole is corresponding in fixed plate, and the diameter of plug is corresponding to the diameter of through-hole on the second internal fixation plate；Spacing bar two The plug at end is inserted into corresponding through-hole on the second outer stationary plates and the second internal fixation plate respectively, and spacing bar is fixed on outside second Between fixed plate and the second internal fixation plate；Spacing bar is surrounded by arc surface.

The technical program is due to using limiting component as caging bolt or spacing bar；Second shock-resistant member includes sponge Pad and sponge support frame；The lateral surface of sponge support frame is equipped with columnar protrusions, and each sponge support frame includes that four columns are prominent It rises；Every two columnar protrusions are one group, and the left end of sponge support frame is arranged in one group of pillar, and another group of pillar is arranged in sponge branch The right end of support, two groups of pillars are mutually symmetrical with；Distance between two pillars of each group is consistent, every group of two columnar protrusions it is opposite Side forms an arc surface, and the internal diameter of arc surface is corresponding with the outer diameter of caging bolt or spacing bar；Second outer stationary plates It is equipped with through-hole, the through-hole on the second outer stationary plates is corresponding with caging bolt or spacing bar；And second sets on internal fixation plate There is through-hole, the through-hole on the second internal fixation plate is corresponding with caging bolt or spacing bar；Caging bolt sequentially passes through outside second The through-hole on through-hole and the second internal fixation plate in fixed plate, caging bolt are surrounded by arc surface；Alternatively, spacing bar both ends point Plug is not provided with it；The diameter of plug is less than the diameter of spacing bar ontology, and plug and spacing bar ontology are in step-like structure； The diameter of plug is corresponding to the diameter of through-hole on the second outer stationary plates, and the diameter of plug on the second internal fixation plate through-hole it is straight Diameter is corresponding；The plug at spacing bar both ends is inserted into corresponding through-hole on the second outer stationary plates and the second internal fixation plate respectively, will limit Position compression bar is fixed between the second outer stationary plates and the second internal fixation plate；The technological means that spacing bar is surrounded by arc surface, institute The outer shifting that the second shock-resistant member is limited with caging bolt or spacing bar, makes the second shock-resistant member be close to wheel shaft drive connection part Outer surface effectively absorbs the vibration in all directions and impact force, weakens noise, protects drive shaft.

Second outer stationary plates are movably connected with wheel shaft drive connection part, and the second internal fixation plate and wheel shaft are drivingly connected Part is movably connected；Second shock-resistant member is arranged between the second outer stationary plates and the second internal fixation plate.

The technical program uses the second outer stationary plates and is movably connected with wheel shaft drive connection part, and fixed in second Plate is movably connected with wheel shaft drive connection part；The setting of second shock-resistant member the second outer stationary plates and the second internal fixation plate it Between technological means have so the vibration from the second outer stationary plates and the second internal fixation plate can be absorbed in the second shock-resistant member Drive shaft in effect ground protection wheel shaft drive connection part.

Multiple card columns are provided on the lateral wall of wheel shaft drive connection part, the end face of card column is lower than wheel shaft drive connection part master The end face of body, the second outer stationary plates and the second internal fixation plate are provided centrally with circular through hole, the internal diameter and wheel shaft of circular through hole The outer diameter of drive connection part main body is corresponding；Second outer stationary plates are connected together with wheel shaft drive connection part, and the first internal fixation plate It is connected together with wheel shaft drive connection part；Wheel shaft drive connection part is between the second outer stationary plates and the second internal fixation plate；Wheel Axis drive connection part and the second outer stationary plates and the second internal fixation plate are coaxially disposed；The diameter of wheel shaft drive connection part is less than second The diameter of outer stationary plates and the second internal fixation plate；Second shock-resistant member is arranged along the circumferential direction of wheel shaft drive connection part, and second is anti- Shake component fits with wheel shaft drive connection part, and the second shock-resistant member is between the second outer stationary plates and the second internal fixation plate.

The technical program is provided with multiple card columns, the end face of card column on the lateral wall due to using wheel shaft drive connection part Lower than the end face of wheel shaft drive connection part main body, the second outer stationary plates and the second internal fixation plate are provided centrally with circular through hole, The internal diameter of circular through hole is corresponding to the outer diameter of wheel shaft drive connection part main body；Second outer stationary plates engage with wheel shaft drive connection part Connection, and the first internal fixation plate is connected together with wheel shaft drive connection part；Wheel shaft drive connection part be located at the second outer stationary plates with Between second internal fixation plate；Wheel shaft drive connection part and the second outer stationary plates and the second internal fixation plate are coaxially disposed；Wheel shaft driving Diameter of the diameter of connector less than the second outer stationary plates and the second internal fixation plate；Second shock-resistant member is along wheel shaft drive connection part Circumferential setting, and the second shock-resistant member fits with wheel shaft drive connection part, and the second shock-resistant member is located at the second outer stationary plates And the second technological means between internal fixation plate, so the second outer stationary plates and the second internal fixation plate and wheel shaft drive connection part can It is movably connected with, the vibration from the second outer stationary plates and the second internal fixation plate can be absorbed in the second shock-resistant member, stablizes wheel shaft Drive connection part to protect drive shaft, while absorbing the second outer stationary plates and the second internal fixation plate and wheel shaft drive connection part Noise caused by mutually hitting, improves the comfort level of user.

Third technical problem to be solved in the utility model is to provide a kind of riveting axis and its rubber wheel assembly and universal Wheel.The riveting axis is assembled with rubber wheel using riveter, dynamics when riveting can be accurately controlled, reach left rubber wheel It is symmetrical with right rubber wheel, it is uniformly distributed stress on left rubber wheel and right rubber wheel, reduces strain, improve making for rubber wheel Use the service life.Simultaneously as so that assembling is more quick, convenient, improve production efficiency using riveter, reduce production cost, Be conducive to large batch of production.

For axis, in order to solve above-mentioned third technical problem, the utility model provides a kind of riveting axis, the riveting Axis is made of A3 galvanized steel or 12 steel of chromium.

The technical program is as using riveting axis technological means made of 12 steel of A3 galvanized steel or chromium, so riveting axis There is wear-resisting characteristic, improves the service life of riveting axis.

Riveting axis includes riveting shaft body, and riveting shaft body is cylindrical.

The technical program includes riveting shaft body, riveting shaft body technology hand cylindrical due to using riveting axis Section, cylindrical riveting axis is relatively common, and structure is simple, easy to assembly, so being conducive to riveter for rubber wheel riveting to riveting On last item, assembly efficiency is improved.

It is equipped with circular protrusion in the middle part of riveting axis, is provided with a plane in circular protrusion；Circular protrusion and riveting axis Main body is integrally formed.

The technical program uses and is equipped with circular protrusion in the middle part of riveting axis, is provided with a plane in circular protrusion；Circle Annular projection and the integrally formed technological means of riveting shaft body, so annulus will not slide on riveting axis, it is flat on annulus Face will not be rotated relative to riveting axis, and the positioning and assistance riveting axis when being conducive to riveting are fixedly connected with axle retainer, And integrally formed riveting axis is not easy to crack when in use, is conducive to the service life for improving riveting axis.

For component, in order to solve above-mentioned third technical problem, the utility model provides a kind of rubber wheel assembly, The rubber wheel assembly is the first small rubber wheel component, and the first small rubber wheel component includes riveting axis as above, the first small rubber wheel, wheel Axis fixing piece and riveting axle bearing；First small rubber wheel is connected with riveting axis by riveting axle bearing riveting；Axle retainer and Riveting axis is fixedly connected.

The technical program uses a kind of rubber wheel assembly, and rubber wheel assembly is the first small rubber wheel component, the first small rubber Rubber tire component includes riveting axis, the first small rubber wheel, axle retainer and riveting axle bearing as above；First small rubber wheel and riveting Axis is connected by riveting axle bearing riveting；The technological means that axle retainer is fixedly connected with riveting axis, so using riveter The quick assembling that can realize the first small rubber wheel and riveting axis, improves the accuracy of assembling, improves production efficiency, drop Low production cost.

First small rubber wheel component includes two the first small rubber wheels, and two the first small rubber wheels are mounted on by riveting axis The left and right sides of axle retainer；First small rubber wheel passes through riveting axle bearing and riveting axis connection.

The technical program includes two the first small rubber wheels, two the first small rubbers due to using the first small rubber wheel component Rubber tire is mounted on the left and right sides of axle retainer by riveting axis；First small rubber wheel is connected by riveting axle bearing and riveting axis The technological means connect, so can realize the Quick-rivet of the first small rubber wheel and riveting axis using riveter, and left and right First small rubber wheel of two sides can be riveted simultaneously, improved production efficiency, reduced production cost.

The outer diameter of riveting axis is corresponding to the internal diameter of riveting axle bearing inner ring, the outer surface of riveting axis and riveting axle bearing inner ring Inner surface be fixedly connected by riveting；The outer diameter of riveting axle bearing outer ring is corresponding to the internal diameter of the first small rubber wheel, riveting axis The outer surface of outer race is fixedly connected with the inner surface of the first small rubber wheel.

The technical program is since the outer diameter for using riveting axis is corresponding to the internal diameter of riveting axle bearing inner ring, outside riveting axis Surface is fixedly connected with the inner surface of riveting axle bearing inner ring by riveting；The outer diameter and the first small rubber of riveting axle bearing outer ring The internal diameter of wheel is corresponding, the technological means that the outer surface of riveting axle bearing outer ring is fixedly connected with the inner surface of the first small rubber wheel, So the use of riveting axle bearing, is freely rotatable the first small rubber wheel with respect to riveting axis；When left and right turn because Bearing is used to connect so that coefficient of friction is small, noise is small and can reach and more steadily travels.

Rubber wheel assembly further includes annular gasket, annular gasket be located at axle retainer and the first small rubber wheel it Between.

The technical program further includes annular gasket due to using rubber wheel assembly, and annular gasket is fixed positioned at wheel shaft Technological means between part and the first small rubber wheel effectively alleviates rubbing for axle retainer and the first small rubber wheel end It wipes, reduces noise, improve the service life of universal wheel, improve the comfort level of user.

The front of axle retainer is milled with a through-hole, and a plane is milled in through-hole；The plane and riveting axis being milled in through-hole Plane sizes in the circular protrusion in middle part are corresponding, and the shape of through-hole is corresponding to the shape of protrusion circular in the middle part of riveting axis, will Axle retainer is connected with riveting axis.

The technical program is milled with a through-hole due to using the front of axle retainer, and a plane is milled in through-hole；Through-hole The plane being inside milled with is corresponding to the plane sizes in protrusion circular in the middle part of riveting axis, annulus in the middle part of the shape and riveting axis of through-hole The shape of shape protrusion is corresponding, the technological means that axle retainer is connected with riveting axis, so by the side wall of through-hole when installing It is docked with annulus in the middle part of riveting axis, the plane on annulus is docked with the plane in circular protrusion, so that connection is more stable, no It is also easy to produce shaking, while circular protrusion is to be fixedly connected to provide a connecting platform in the middle part of riveting axis, so that link position It is more accurate, avoid tie point deviate center and caused by the unstable and high noisy of traveling.

Axle retainer is fixedly connected by welding with riveting axis；Welding manner is laser welding.

The technical program is fixedly connected by welding due to using axle retainer with riveting axis；Welding manner is laser The technological means of welding, so axle retainer and riveting axis, improving production efficiency can be connected to precise high-efficiency.

For universal wheel, in order to solve above-mentioned third technical problem, the utility model provides a kind of universal wheel, should Universal wheel includes rubber wheel assembly as above.

The technical program is due to using the technological means that a kind of universal wheel includes rubber wheel assembly as above, so using riveting Press can realize the quick assembling of the first small rubber wheel and riveting axis, improve the accuracy of assembling, improve production effect Rate reduces production cost.

4th technical problem to be solved in the utility model be to provide a kind of wheel axis fixing plate and its rubber wheel assembly and Universal wheel.The wheel axis fixing plate is removably attached between outer stationary plates and internal fixation plate, so that each rubber in universal wheel Rubber tire component is removably, to be effectively shortened assembling duration；And can to single components, such as rubber wheel assembly, It is replaced, is conducive to safeguard, maintenance cost can be reduced, reduce security risk.

For fixed plate, in order to solve above-mentioned 4th technical problem, the utility model provides a kind of wheel shaft and fixes Plate is disposed with latch, card slot and card edge along the tail portion of the outer side edges of wheel axis fixing plate from back to front, and along wheel axis fixing plate The tail portion of inner side edge be disposed with latch, card slot and card edge from back to front；The front of wheel axis fixing plate is provided with through-hole, through-hole For cylindrical hole.

The technical program is due to using a kind of wheel axis fixing plate, from back to front along the tail portion for the outer side edges for taking turns axis fixing plate Be disposed with latch, card slot and card edge, and the tail portion of the inner side edge along wheel axis fixing plate be disposed with from back to front latch, Card slot and card edge；The front of wheel axis fixing plate is provided with through-hole, and through-hole is the technological means of cylindrical hole, takes turns axis fixing plate two sides Latch, card slot and card be removably attached between outer stationary plates and internal fixation plate along will take turns axis fixing plate, wheel axis fixing plate The through-hole of front accommodates rubber wheel wheel shaft, and two rubber wheels in left and right are equipped on rubber wheel wheel shaft, and two rubber wheels are consolidated by wheel shaft Fixed board separates, so wheel axis fixing plate plays the role of for rubber wheel being removably assembled on universal wheel outer peripheral surface；Detachably Ground is assemblied with conducive to installation, maintenance, maintenance and replacement.If entire universal wheel only because a rubber wheel assembly failure and nothing When method normal use, it is only necessary to remove wheel axis fixing plate from internal fixation plate and outer stationary plates, so that it may to failure rubber wheel group Part is replaced, and without eliminating entire universal wheel, reduces the maintenance cost of universal wheel.

Latch is rectangle, positioned at the tail end of wheel axis fixing plate；Card slot is adjacent with latch, and card slot is wheel axis fixing plate, periphery On rectangular notch, be respectively provided with an arc notch at two base angles of rectangular aperture；Card edge is adjacent with card slot, blocks the top on edge The front end face of face and wheel axis fixing plate is interconnected by an even surface；Card slot is clipped in latch and card between.

The technical program is due to using latch for rectangle, positioned at the tail end of wheel axis fixing plate；Card slot is adjacent with latch, card Slot is to take turns axis fixing plate, the rectangular notch on periphery, is respectively provided with an arc notch at two base angles of rectangular aperture；Card edge Adjacent with card slot, the front end face of the top surface and wheel axis fixing plate of blocking edge is interconnected by an even surface；Card slot be clipped in latch and Technological means of the card between, structure is simple, so assembled convenient, is conducive to part exchanging and detachable maintaining.

Wheel axis fixing plate is symmetrical structure, takes turns the symmetry axis of the outer side edges and inner side edge of axis fixing plate about wheel axis fixing plate Symmetrically, symmetry axis extends to the front side of wheel axis fixing plate on rear side of wheel axis fixing plate；The setting of through-hole relative symmetry axial symmetry.

The technical program takes turns outer side edges and the inside frontier juncture of axis fixing plate due to using wheel axis fixing plate as symmetrical structure In the symmetrical axial symmetry of wheel axis fixing plate, symmetry axis extends to the front side of wheel axis fixing plate on rear side of wheel axis fixing plate；Through-hole The technological means of relative symmetry axial symmetry setting is effectively relieved so improving the stability and shock resistance of rubber wheel assembly Stress it is uneven and caused by locally strain, reduce the noise generated by structural instability.

The rear end face for taking turns axis fixing plate is rectangle；The front end face for taking turns axis fixing plate is an arc surface.

The technical program is due to using the rear end face of wheel axis fixing plate as rectangle；The front end face for taking turns axis fixing plate is a circle The technological means of cambered surface, the rear end face of wheel axis fixing plate rectangle is conducive to take turns the splicing of axis fixing plate and shockproof structure, so having Conducive to installation, while making structure more compact, is effectively saved space；And arc-shaped front end face avoids its corner angle and rubber The breakage and abrasion of rubber wheel caused by collision and friction between rubber tire, are effectively protected rubber wheel, improve rubber wheel Service life.

The rear portion of wheel axis fixing plate is provided with lightening hole, and lightening hole is the isosceles trapezoid with excessive angle, lightening hole relative to Symmetrical axial symmetry.

The technical program is provided with lightening hole due to using the rear portion of wheel axis fixing plate, lightening hole be with excessive angle etc. Waist is trapezoidal, and lightening hole so being effectively reduced the weight of wheel axis fixing plate, and has relative to symmetrical axisymmetric technological means Conducive to heat dissipation, the energy consumption of whole vehicle is reduced；And the symmetrical structure of lightening hole be conducive to improve rubber wheel assembly it is integrally-built steady It is qualitative, reduce noise.

Wheel axis fixing plate includes the wheel in big rubber wheel fixed plate and the second small rubber wheel component in big rubber wheel assembly Axis fixing plate；Big rubber wheel fixed plate in big rubber wheel assembly is identical with the wheel axis fixing plate in the second small rubber wheel component.

The technical program includes big rubber wheel fixed plate in big rubber wheel assembly and the due to using wheel axis fixing plate Wheel axis fixing plate in two small rubber wheel components；Big rubber wheel fixed plate and the second small rubber wheel component in big rubber wheel assembly In the identical technological means of wheel axis fixing plate advantageously reduce time so effectively reducing the type of part；Greatly Amount can reduce the price and use cost of single wheel axis fixing plate using same wheel axis fixing plate；Take turns the repetition of axis fixing plate It uses, so that assembly repeats degree height, is conducive to improve assembly and production efficiency.

For component, in order to solve above-mentioned 4th technical problem, the utility model provides a kind of rubber wheel assembly, Including wheel axis fixing plate as above, two rubber wheels, rubber wheel wheel shaft, rubber wheel bearing and rubber wheel fixing screws；Rubber wheel It is connect by rubber wheel wheel shaft, rubber wheel bearing and rubber wheel fixing screws with wheel axis fixing plate.

The technical program due to use a kind of rubber wheel assembly, including, wheel axis fixing plate as above, two rubber wheels, Rubber wheel wheel shaft, rubber wheel bearing and rubber wheel fixing screws；Rubber wheel passes through rubber wheel wheel shaft, rubber wheel bearing and rubber wheel The technological means that fixing screws are connect with wheel axis fixing plate, so the structure of rubber wheel assembly is simple, easy to assembly, and multiple solid It is fixed, reliable and stable.

Rubber wheel includes the second small rubber wheel in big rubber wheel and the second small rubber wheel component in big rubber wheel assembly； Rubber wheel wheel shaft includes the welding axis in big rubber wheel wheel shaft and the second small rubber wheel component in big rubber wheel assembly；Rubber wheel Bearing includes the welding axle bearing in big rubber wheel bearing and the second small rubber wheel component in big rubber wheel assembly；Rubber wheel is solid Determining screw includes the fixing screws in big rubber wheel fixing screws and the second small rubber wheel component in big rubber wheel assembly.Big rubber The diameter and length of big rubber wheel in rubber tire component be greater than the second small rubber wheel component in the second small rubber wheel diameter and Length；The welding axis in big rubber wheel wheel shaft and the second small rubber wheel component in big rubber wheel assembly is identical；Big rubber wheel group The welding axle bearing in big rubber wheel bearing and the second small rubber wheel component in part is identical；Big rubber in big rubber wheel assembly It is identical with the fixing screws in the second small rubber wheel component to take turns fixing screws.

The technical program is due to including the big rubber wheel and the second small rubber wheel group in big rubber wheel assembly using rubber wheel The second small rubber wheel in part；Rubber wheel wheel shaft includes big rubber wheel wheel shaft and the second small rubber wheel group in big rubber wheel assembly Welding axis in part；Rubber wheel bearing includes in big rubber wheel bearing and the second small rubber wheel component in big rubber wheel assembly Weld axle bearing；Rubber wheel fixing screws include big rubber wheel fixing screws and the second small rubber wheel group in big rubber wheel assembly Fixing screws in part；The diameter and length of big rubber wheel in big rubber wheel assembly are greater than the in the second small rubber wheel component The diameter and length of two small rubber wheels；The welding in big rubber wheel wheel shaft and the second small rubber wheel component in big rubber wheel assembly Axis is identical；The welding axle bearing in big rubber wheel bearing and the second small rubber wheel component in big rubber wheel assembly is identical；Big rubber The identical technological means of fixing screws in big rubber wheel fixing screws and the second small rubber wheel component in rubber tire component, so The type of part is effectively reduced, time is advantageously reduced；Same part is largely used, single part can be reduced Price and use cost；The reuse of part is conducive to improve assembly and production efficiency so that assembly repeats degree height.

The middle part of rubber wheel wheel shaft is equipped with annulus, and annulus side side is equipped with flange；The front of wheel axis fixing plate is provided with Through-hole, rubber wheel wheel shaft pass through through-hole；Flange limits the movement of the opposite wheel axis fixing plate of rubber wheel wheel shaft, the lateral surface of annulus and The medial surface of wheel axis fixing plate fits；It is rubber wheel bottom end that rubber wheel, which closely takes turns axis fixing plate end, and rubber wheel is fixed far from wheel shaft Plate end is rubber wheel top, and rubber wheel top end diameter is less than rubber wheel bottom diameter；The both ends of rubber wheel wheel shaft are equipped with internal screw thread Hole is matched with rubber wheel fixing screws；Rubber wheel and rubber wheel wheel between centers are equipped with rubber wheel bearing, and each rubber wheel assembly is equal Including four rubber wheel bearings, each rubber wheel passes through two rubber wheel bearings and is connected with rubber wheel wheel shaft.

The technical program is equipped with annulus due to using the middle part of rubber wheel wheel shaft, and annulus side side is equipped with flange； The front of wheel axis fixing plate is provided with through-hole, and rubber wheel wheel shaft passes through through-hole；Flange limitation rubber wheel wheel shaft is opposite to take turns axis fixing plate Movement, the lateral surface of annulus and the medial surface for taking turns axis fixing plate fit；It is rubber wheel bottom that rubber wheel, which closely takes turns axis fixing plate end, End, rubber wheel are rubber wheel top far from wheel axis fixing plate end, and rubber wheel top end diameter is less than rubber wheel bottom diameter；Rubber wheel The both ends of wheel shaft are equipped with internal thread hole, match with rubber wheel fixing screws；Rubber wheel and rubber wheel wheel between centers are equipped with rubber wheel Bearing, each rubber wheel assembly include four rubber wheel bearings, and each rubber wheel passes through two rubber wheel bearings and rubber The connected technological means of wheel shaft is taken turns, so being effectively prevented the cunning of the opposite wheel axis fixing plate of rubber wheel wheel shaft in the welding process It is dynamic, stable welding surface is provided for welding, while circular ring marks go out in the middle part of rubber wheel wheel shaft, is conducive to the efficiency for improving welding And accuracy；Rubber wheel top end diameter is less than the setting of rubber wheel bottom diameter, so multiple rubber wheels can be spliced into universal wheel Rounded outer surface；The setting of bearing and screw is connected with each other more firm so that the structure of rubber wheel assembly is more stable Gu being effectively reduced the noise because due to loosening generates.

For universal wheel, in order to solve above-mentioned 4th technical problem, the utility model provides a kind of universal wheel packet Rubber wheel assembly and wheel hub connection component as above are included, rubber wheel assembly is connected by being clamped with wheel hub connection component；Rubber wheel Component includes big rubber wheel assembly and the second small rubber wheel component.

The technical program includes rubber wheel assembly and wheel hub connection component as above, rubber wheel due to using a kind of universal wheel Component is connected by being clamped with wheel hub connection component；Rubber wheel assembly includes big rubber wheel assembly and the second small rubber wheel component Technological means, so universal wheel is splicing construction, Whole-dismountable is conducive to installation, part exchanging and maintenance.

Wheel hub connection component includes internal fixation plate and outer stationary plates；Outer stationary plates are radially equipped with the first card slot and the second card Slot, the first card slot are matched with the latch on the outside of wheel axis fixing plate, and the second card slot is matched with the card edge on the outside of wheel axis fixing plate； Internal fixation plate is radially equipped with the first card slot and the second card slot, and the first card slot is matched with the latch on the inside of wheel axis fixing plate, the Two draw-in groove is matched with the card edge on the inside of wheel axis fixing plate.

The technical program includes internal fixation plate and outer stationary plates due to using wheel hub connection component；Outer stationary plates are radially Equipped with the first card slot and the second card slot, the first card slot is matched with the latch on the outside of wheel axis fixing plate, and the second card slot and wheel shaft are solid Card edge on the outside of fixed board matches；Internal fixation plate is radially equipped with the first card slot and the second card slot, and the first card slot is fixed with wheel shaft Latch on the inside of plate matches, the technological means that the second card slot is matched with the card edge on the inside of wheel axis fixing plate, so structure is simple It is single and easy to assembly, be conducive to expeditiously produce, and the connection between outer stationary plates, internal fixation plate and wheel axis fixing plate is card It connects, is conducive to disassembly and assembly.

4th technical problem to be solved in the utility model be to provide a kind of axle retainer and its rubber wheel assembly and Universal wheel.The axle retainer is removably attached between outer stationary plates and internal fixation plate, so that each rubber in universal wheel Rubber tire component is removably, to be effectively shortened assembling duration；And can to single components, such as rubber wheel assembly, It is replaced, is conducive to safeguard, maintenance cost can be reduced, reduce security risk.

For fixing piece, in order to solve above-mentioned 4th technical problem, the utility model provides a kind of wheel shaft and fixes The tail portion of part, axle retainer is equipped with multiple through-holes；The front of axle retainer is equipped with axis hole；The axis of through-hole and the axis of axis hole Line square crossing.

The technical program is equipped with multiple through-holes due to using a kind of axle retainer, the tail portion of axle retainer；Wheel shaft The front of fixing piece is equipped with axis hole；The technological means of the axis square crossing of the axis and axis hole of through-hole, so axle retainer It is removably connect by the through-hole of its tail portion with internal fixation plate and outer stationary plates, and axle retainer passes through the axis hole of its front It is fixedly connected with riveting axis, rubber wheel is provided on riveting axis, rubber wheel is fixed on axle retainer or so two by riveting axis Side and internal fixation plate and outer stationary plates are detachably connected, are detachably connected with conducive to installation, maintenance, maintenance and replacement, drop The low maintenance cost of universal wheel.

The through-hole of axle retainer tail portion is cylindrical hole, and each axle retainer includes two through-holes, Mei Getong Hole is extended to the medial surface of axle retainer by the lateral surface of axle retainer；Axis hole is shaped by turnning and milling, the side of axis hole Plane including a protrusion, axis hole are extended to the right side of axle retainer by the left side of axle retainer.

The technical program uses the through-hole of axle retainer tail portion as cylindrical hole, and each axle retainer includes Two through-holes, each through-hole are extended to the medial surface of axle retainer by the lateral surface of axle retainer；Axis hole passes through turnning and milling Forming, the side of axis hole includes the plane of a protrusion, and axis hole is extended to the right side of axle retainer by the left side of axle retainer The technological means of side, so screw sequentially passes through outer stationary plates, the through-hole of axle retainer tail portion, internal fixation plate and consolidated It is fixed, so that axle retainer and internal fixation plate and outer stationary plates are detachably connected, advantageously reduce maintenance cost；And axis hole side The plane in face is mutually clamped with the plane on riveting axis, is avoided movement of the riveting axis with respect to axle retainer, is conducive to improve The stability of structure.

Axle retainer is symmetrical structure, and the lateral surface and medial surface of axle retainer are symmetrical, axle retainer Left side and right side are symmetrical；Two through-hole bilateral symmetries.

The technical program is due to using axle retainer as symmetrical structure, the lateral surface and medial surface phase of axle retainer Mutually symmetrical, the left side and right side of axle retainer are symmetrical；Two symmetrical technological means of through-hole, it is symmetrical to tie Structure is conducive to being uniformly distributed for stress, locally strains so being effectively relieved caused by stress unevenness；Symmetrical structure mentions simultaneously The high stability and anti-seismic performance of system, so reducing the noise generated by structural instability.

The tail portion of axle retainer is triangular pyramidal, and three sides of pyrometric cone are inwardly recessed；The front of axle retainer For plate structure.

Due to using the tail portion of axle retainer as triangular pyramidal, three sides of pyrometric cone concave the technical program Into；The front of axle retainer is the technological means of plate structure, is fixed so the tail structure of triangular pyramidal improves wheel shaft The stability of part, and the front of axle retainer plate structure then saves space, alleviates weight, improves the energy of whole vehicle Measure utilization rate.

The end face of axle retainer tail portion is equipped with annulus protrusion.

The technological means that the technical program is equipped with annulus protrusion due to using the end face of axle retainer tail portion, is the The connection of spring and axle retainer tail end face in one shock-resistant member provides structure basis and convenience.

For component, in order to solve above-mentioned 4th technical problem, the utility model provides a kind of rubber wheel assembly, Rubber wheel assembly is the first small rubber wheel component, including axle retainer as above, two the first small rubber wheels, riveting axis and riveting Last item bearing；First small rubber wheel is flexibly connected by riveting axis and riveting axle bearing with axle retainer.

The technical program is the first small rubber wheel component due to using a kind of rubber wheel assembly, rubber wheel assembly, including Axle retainer, two the first small rubber wheels, riveting axis and riveting axle bearing as above；First small rubber wheel by riveting axis and The technological means that riveting axle bearing is flexibly connected with axle retainer has so the structure of rubber wheel assembly is simple, easy to assembly Conducive to raising production efficiency, and riveting fixation is carried out using riveter and further increases efficiency, make assembling more fast, just Benefit.

The middle part of riveting axis is equipped with annular protrusions, the outer diameter of annular protrusions and the internal diameter of axle retainer front axis hole Accordingly；There is a plane in annular protrusions；Plane is corresponding with the plane in the axis hole hole of axle retainer front；Riveting axis and wheel Axis fixing piece is fixedly connected by welding between riveting axis and axle retainer front axis hole or interference fit；Riveting axis Outer diameter it is corresponding to the internal diameter of riveting axle bearing inner ring, riveting axis is fixedly connected with the inner surface of riveting axle bearing inner ring；Riveting The outer diameter of axle bearing outer ring is corresponding to the internal diameter of the first small rubber wheel, the outer surface of riveting axle bearing outer ring and the first small rubber wheel Inner surface be fixedly connected；Riveting axis is made of A3 galvanized steel or 12 steel of chromium.

The technical program is equipped with annular protrusions, the outer diameter and wheel shaft of annular protrusions due to using the middle part of riveting axis The internal diameter of fixing piece front axis hole is corresponding；There is a plane in annular protrusions；In plane and axle retainer front axis hole hole Plane is corresponding；Riveting axis and axle retainer are matched by welding between riveting axis and axle retainer front axis hole or interference Conjunction is fixedly connected；The outer diameter of riveting axis is corresponding to the internal diameter of riveting axle bearing inner ring, riveting axis and riveting axle bearing inner ring Inner surface be fixedly connected；The outer diameter of riveting axle bearing outer ring is corresponding to the internal diameter of the first small rubber wheel, riveting axle bearing outer ring Outer surface be fixedly connected with the inner surface of the first small rubber wheel；Riveting axis technology hand made of 12 steel of A3 galvanized steel or chromium Section, so, the plane in plane and axle retainer front axis hole hole on corresponding riveting axis is mutually clamped, and is effectively kept away Exempt from rotation of the wheel shaft in axis hole, improved the stability of system, while being also beneficial to quick assembling；Riveting axle bearing is set It sets so that rubber wheel can be with flexible rotating；Riveting axis made of 12 steel of A3 galvanized steel or chromium has good wearability, improves riveting The service life of last item.

The both ends of axle retainer front axis hole are each provided with an annular gasket, and annular gasket is located at the first small rubber Between wheel and axle retainer；The axis of annular gasket is overlapped with the axis of the axis of the first small rubber wheel and axis hole.

The technical program is each provided with an annular gasket, annulus due to using the both ends of axle retainer front axis hole Shape gasket is between the first small rubber wheel and axle retainer；The axis of the axis of annular gasket and the first small rubber wheel and The technological means that the axis of axis hole is overlapped has so avoiding the direct friction between the first small rubber wheel and axle retainer Conducive to the service life of raising small rubber wheel, while reducing the noise generated when the rotation of the first small rubber wheel.

For universal wheel, in order to solve above-mentioned 4th technical problem, the utility model provides a kind of universal wheel, packet Rubber wheel assembly and wheel hub connection component as above are included, the first small rubber wheel component is connected by screw with wheel hub connection component.

The technical program is due to using a kind of universal wheel, including rubber wheel assembly as above and wheel hub connection component, and first The technological means that small rubber wheel component is connected by screw with wheel hub connection component, so the first small rubber wheel component and wheel hub The connection of connection component be it is detachably connected, be conducive to maintenance and part replacement；It is assembled simultaneously using screw, structure Simply, easy to assembly, screw is at low cost, be conducive to industrialization production.

Wheel hub connection component includes the first internal fixation plate and the first outer stationary plates；It is provided on first outer stationary plates and wheel shaft The corresponding circular hole of the through-hole of anchor tail, and be provided on the first internal fixation plate opposite with the through-hole of axle retainer tail portion The circular hole answered；Screw sequentially passes through the first outer stationary plates, axle retainer and the first internal fixation plate, by the first small rubber wheel component It is fixed between the first internal fixation plate and the first outer stationary plates by axle retainer；Universal wheel further includes the first shock-resistant member, First shock-resistant member includes spring and spring-support plate；The outer diameter of spring on axle retainer tail end face annulus protrusion it is interior Diameter is corresponding.

The technical program includes the first internal fixation plate and the first outer stationary plates due to using wheel hub connection component；Outside first It is provided with circular hole corresponding with the through-hole of axle retainer tail portion in fixed plate, and is provided on the first internal fixation plate and wheel shaft The corresponding circular hole of the through-hole of anchor tail；Screw sequentially passes through the first outer stationary plates, fixed in axle retainer and first First small rubber wheel component is fixed between the first internal fixation plate and the first outer stationary plates by plate by axle retainer；It is universal Wheel further includes the first shock-resistant member, and the first shock-resistant member includes spring and spring-support plate；The outer diameter and axle retainer of spring The corresponding technological means of the internal diameter of annulus protrusion on tail end face；So by using the wheel shaft in screw connection rubber wheel assembly Internal fixation plate and outer stationary plates in fixing piece and wheel hub connection component reach the removable of rubber wheel assembly and wheel hub connection component Assembly is unloaded, maintenance and part exchanging are conducive to；It is real by being mounted on spring in the annulus protrusion of axle retainer tail end face The connection of existing first shock-resistant member and the first small rubber wheel inter-module, the annulus protrusion of axle retainer tail end face are spring Installation positioning is provided convenience, and is conducive to more quickly assemble.

5th technical problem to be solved in the utility model is to provide the rubber wheel and its rubber wheel group of a kind of universal wheel Part and universal wheel.Be provided on rubber wheel in the universal wheel rubber wheel assembly abrasion prompt feature, help user to whether Replacement rubber wheel makes the judgement of foundation.Both the wheelchair slipping phenomenon hair induced not in time due to rubber wheel replacement had been can avoid It is raw, it also can avoid excessively being replaced as frequently as waste caused by rubber wheel.

For rubber wheel, in order to solve above-mentioned 5th technical problem, the utility model provides a kind of universal wheel Rubber wheel, the rubber wheel are equipped with abrasion prompt feature.

The technological means that the technical program is equipped with abrasion prompt feature due to using a kind of rubber wheel of universal wheel, institute With user can by abrasion prompt feature direct observation, the rubber wheel having worn out can be replaced in time, avoid due to The skidding that rubber wheel replacement causes not in time, while also can avoid excessively frequently replacing unnecessary wave caused by rubber wheel Take.

Antiskid groove is provided on the outer surface of rubber wheel, abrasion prompt feature is arranged in antiskid groove.

The technical program is provided with antiskid groove on the outer surface due to using rubber wheel, abrasion prompt feature setting exists Technological means in antiskid groove, so the observation and judgement for user are provided convenience, user is anti-skidding recessed by observing Depth where the top surface of abrasion prompt feature in slot in antiskid groove, so that it may understand the degree of wear of antiskid groove.When anti- When the top surface of the abrasion prompt feature in sliding groove and rubber wheel flush with outer surface, so that it may promptly make sentencing for replacement rubber wheel It is disconnected.

Abrasion prompt feature is convex to be extended radially in the antiskid groove of rubber wheel outer surface by the bottom surface of antiskid groove It rises, raised height is the half of antiskid groove depth.

The technical program due to use abrasion prompt feature in the antiskid groove of rubber wheel outer surface by antiskid groove The protrusion that extends radially of bottom surface, raised height is the technological means of the half of antiskid groove depth, so effectively preventing Falling off for abrasion prompt feature is stopped, the range difference of the depth of the height and antiskid groove of protrusion is safe distance, is being used In the process, when the top surface of abrasion prompt feature and rubber wheel flush with outer surface, user can promptly make replacement rubber The judgement of wheel.

It is provided with multi-turn groove on rubber wheel, multiple abrasion prompt features are equipped in every circle groove；In each circle groove The quantity of abrasion prompt feature is consistent with each other；Abrasion prompt feature is uniformly distributed in groove.

The technical program is provided with multi-turn groove on rubber wheel due to using, and multiple abrasions are equipped in every circle groove and are mentioned Show feature；The quantity of abrasion prompt feature in each circle groove is consistent with each other；Abrasion prompt feature is equally distributed in groove Technological means, so abrasion prompts feature distribution in each circle groove, in some circles abrasions of rubber wheel, when some circles are not worn, It will not be not located in some circles where abrasion because of abrasion prompt feature, cause only to observe that unworn abrasion prompt is special Sign, without replacing rubber wheel in time.

Two circle grooves are provided on rubber wheel；Rubber wheel outer surface is equipped with multiple groups abrasion prompt feature, every group two, divides She Zhi not be in two circle grooves, and the circumferential position of every group of two abrasion prompt features is identical.

The technical program is provided with two circle grooves on rubber wheel due to using；Rubber wheel outer surface is worn equipped with multiple groups Feature is prompted, every group two, is separately positioned in two circle grooves, and the circumferential position of every group of two abrasion prompt features is identical Technological means finds one and wears another for prompting feature that can position same group so providing convenience for user's observation Abrasion prompt feature.

Rubber wheel is equipped with cue mark, the circumferential position of the circumferential position of cue mark and every group of two abrasion prompt features It sets identical, and is directed toward every group of two abrasion prompt feature.

The technical program uses rubber wheel and is equipped with cue mark, the circumferential position of cue mark and every group of two abrasions It prompts the circumferential position of feature identical, and is directed toward the technological means of every group of two abrasion prompt features, so user finds finger The specific location it is known that abrasion prompt feature is remembered in indicating, provides convenience for user's observation.

Cue mark is isosceles triangle, and perpendicular bisector is directed toward every group of two abrasions prompt feature from bottom edge to vertex；Refer to Indicating note is located on the inner face and/or outer end face of rubber wheel.

For the technical program due to using cue mark as isosceles triangle, perpendicular bisector is directed toward every group from bottom edge to vertex Two abrasions prompt feature；The inner face and/or the technological means on outer end face that cue mark is located at rubber wheel, so isosceles three Angular cue mark is conducive to user's identification, is not easy mutually to obscure with other decorative patterns, and it is to make that abrasion prompt feature is directed toward on vertex The observation of user is provided convenience, so that user can quickly position abrasion prompt feature, cue mark is arranged in idler wheel rubber Advantage on roller end face is because not contacting directly with any object, so that being not easy to be worn and damaged.

Abrasion prompt feature and rubber wheel on rubber wheel is integrally formed.

The technical program due to using the abrasion prompt feature and integrally formed technological means of rubber wheel on rubber wheel, So avoiding falling off for abrasion prompt feature, while also the production for the rubber wheel with abrasion prompt feature provides just Benefit, avoids abrasion prompt feature and rubber wheel is fixed to each other and required the subsequent handlings such as pastes, heats.

For component, in order to solve above-mentioned 5th technical problem, the utility model provides a kind of rubber wheel assembly Including rubber wheel as above；Rubber wheel includes big rubber wheel in big rubber wheel assembly, first in the first small rubber wheel component The second small rubber wheel in small rubber wheel and the second small rubber wheel component.

The technical program includes rubber wheel as above due to using a kind of rubber wheel assembly；Rubber wheel includes big rubber wheel Second in big rubber wheel in component, the first small rubber wheel in the first small rubber wheel component and the second small rubber wheel component is small The technological means of rubber wheel, so the big rubber wheel in big rubber wheel assembly, the first small rubber in the first small rubber wheel component The second small rubber wheel in wheel and the second small rubber wheel component is equipped with abrasion prompt feature, so that user can replace in time The rubber wheel of experience wear avoids replacing the skidding caused not in time due to rubber wheel, while also can avoid excessively frequently replacement Unnecessary waste caused by rubber wheel.

For universal wheel, in order to solve above-mentioned 5th technical problem, the utility model provides a kind of universal wheel, should Universal wheel includes rubber wheel assembly as above.

The technical program due to use a kind of universal wheel include rubber wheel assembly as above technical solution so that User can replace the rubber wheel having worn out on universal wheel in time, avoid replacing due to rubber wheel and cause universal not in time The skidding of wheel, while also can avoid excessively frequently replacing unnecessary waste caused by rubber wheel.

Detailed description of the invention

With reference to the accompanying drawings and detailed description to the welding axis of the utility model and its rubber wheel assembly and universal wheel It is described in further detail.

Fig. 1 is the perspective view of the explosion of the utility model universal wheel, and shock-resistant member therein includes spring.

Fig. 2 is the schematic diagram of the first small rubber wheel of the utility model component.

Fig. 3 is the perspective view of the explosion of the first small rubber wheel of the utility model component.

Fig. 4 is the schematic diagram of the big rubber wheel assembly of the utility model.

Fig. 5 is that (wherein, big rubber wheel wheel shaft and big rubber wheel are solid for the perspective view of the explosion of the big rubber wheel assembly of the utility model Fixed board is welded to connect).

Fig. 5 A is that (wherein, riveting axis and the riveting of big rubber wheel are solid for the perspective view of the explosion of the big rubber wheel assembly of the utility model Fixed board riveting connection).

Fig. 6 is the perspective view of the explosion of the utility model universal wheel, and shock-resistant member therein includes foam-rubber cushion.

Fig. 7 is the schematic diagram of the second shock-resistant member of the utility model.

Fig. 8 is the perspective view of the explosion of the second small rubber wheel of the utility model component.

The reference numerals are as follows.

1, wheel hub connection component；

The outer protecting cover of 1-1, wheel hub；

1-2, outer stationary plates；

1-2-1, the first outer stationary plates；

1-2-2, the second outer stationary plates；

1-3, wheel shaft drive connection part；

1-4, internal fixation plate；

1-4-1, the first internal fixation plate；

1-4-2, the second internal fixation plate；

Protecting cover in 1-5, wheel hub；

1-6, screw；

1-7, screw；

1-8, limiting component；

2, rubber wheel assembly；

2-1, big rubber wheel assembly；

2-1-1, big rubber wheel；

2-1-2, big rubber wheel wheel shaft；

2-1-3, big rubber wheel fixed plate；

2-1-3-1, big rubber wheel rivet fixed plate；

2-1-4, big rubber wheel bearing；

2-1-5, big rubber wheel fixing screws；

2-2, small rubber wheel component；

2-2-1, the first small rubber wheel component；

2-2-1-1, the first small rubber wheel；

2-2-1-2, riveting axis；

2-2-1-3, axle retainer；

2-2-1-4, riveting axle bearing；

2-2-2, the second small rubber wheel component；

2-2-2-1, the second small rubber wheel；

2-2-2-2, welding axis；

2-2-2-3, wheel axis fixing plate；

2-2-2-4, welding axle bearing；

2-2-2-5, fixing screws；

2-3, abrasion prompt feature；

3, shock-resistant member；

3-1, the first shock-resistant member；

3-1-1, spring；

3-1-2, spring-support plate；

3-2, the second shock-resistant member；

3-2-1, foam-rubber cushion；

3-2-2, sponge support frame.

Specific embodiment

Embodiment one

A kind of universal wheel includes wheel hub connection component 1, rubber wheel assembly 2 and shock-resistant member 3.

As shown in Figures 1 to 5, the wheel hub connection component 1 of the present embodiment includes successively setting from the outside of universal wheel to inside The outer protecting cover 1-1 of the wheel hub set, the first outer stationary plates 1-2-1, wheel shaft drive connection part 1-3, the first internal fixation plate 1-4-1 and wheel hub Interior protecting cover 1-5 and screw 1-6 for fixing and screw 1-7.The outer protecting cover 1-1 of wheel hub, the first outer stationary plates 1-2-1, first The shape of protecting cover 1-5 is in regular hexagon in internal fixation plate 1-4-1 and wheel hub, and the side of hexagon is inwardly recessed.

Wheel shaft drive connection part 1-3 is for the connection between universal wheel and drive shaft.It is solid outside the outer protecting cover 1-1 and first of wheel hub Fixed board 1-2-1 is fixed to each other by screw 1-6.The fixation of wheel hub outer protecting cover 1-1 and the first outer stationary plates 1-2-1 need four altogether A screw 1-6.Four screw 1-6 are distributed in four vertex of a rectangle, and two short sides of the rectangle are the one of regular hexagon Group opposite side.Analogously, protecting cover 1-5 and the first internal fixation plate 1-4-1 are fixed to each other by screw 1-6 in wheel hub.Shield in wheel hub The fixation of lid 1-5 and the first internal fixation plate 1-4-1 needs four screw 1-6 altogether.Four screw 1-6 are distributed in a rectangle Four vertex, two short sides of the rectangle are one group of opposite side of regular hexagon.

As shown in Figures 1 to 5, rubber wheel assembly 2 includes big rubber wheel assembly 2-1 and small rubber wheel component 2-2.This implementation The small rubber wheel component 2-2 of example is the first small rubber wheel component 2-2-1.As shown in Figure 4 and Figure 5, big rubber wheel assembly 2-1 packet Include big rubber wheel 2-1-1, big rubber wheel wheel shaft 2-1-2, big rubber wheel fixed plate 2-1-3, big rubber wheel bearing 2-1-4 and big rubber Rubber tire fixing screws 2-1-5.As shown in Figures 2 and 3, the first small rubber wheel component 2-2-1 include the first small rubber wheel 2-2-1, Riveting axis 2-2-1-2, axle retainer 2-2-1-3 and riveting axle bearing 2-2-1-4.As shown in Figure 1, each of the present embodiment ten thousand It include rubber wheel assembly 2-1 six big and six the first small rubber wheel component 2-2-1 to wheel.Big rubber wheel assembly 2-1 and the One small rubber wheel component 2-2-1 is arranged alternately along the circumferential direction of universal wheel.

As shown in Figures 1 to 5, each big rubber wheel assembly 2-1 includes two symmetrically arranged big rubber wheel 2-1-1, And each first small rubber wheel component 2-2 includes two symmetrically arranged first small rubber wheel 2-2-1-1.Big rubber wheel 2-1- 1 diameter close to the big end rubber wheel fixed plate 2-1-3 is greater than big rubber wheel 2-1-1 far from the big end rubber wheel fixed plate 2-1-3 Diameter, big rubber wheel 2-1-1 diameter from its close to the big end rubber wheel fixed plate 2-1-3 to it far from big rubber wheel fixed plate 2-1- 3 ends are gradually reduced along the axis of big rubber wheel 2-1-1.Also, the first small rubber wheel 2-2-1-1 is close to axle retainer 2-2- The diameter at the end 1-3 is greater than the first diameter of the small rubber wheel 2-2-1-1 far from the end axle retainer 2-2-1-3, the first small rubber wheel 2-2-1-1 diameter from its close to the end axle retainer 2-2-1-3 to its far from the end axle retainer 2-2-1-3 along the first small rubber The axis of wheel 2-2-1-1 is gradually reduced.The wheel face of the universal wheel of the present embodiment is by big rubber wheel 2-1-1 and the first small rubber wheel 2-2-1-1 is spliced far from the end face of wheel shaft drive connection part 1-3.Wheel face in order to guarantee universal wheel is smooth, so big rubber The diameter of rubber tire 2-1-1 and the first small rubber wheel 2-2-1-1 are gradually reduced along its axis.

As described above, big rubber wheel assembly 2-1 includes big rubber wheel 2-1-1, big rubber wheel wheel shaft 2-1-2, big rubber wheel Fixed plate 2-1-3, big rubber wheel bearing 2-1-4 and big rubber wheel fixing screws 2-1-5.Big rubber wheel wheel shaft 2-1-2 and big rubber It is welded to connect between rubber tire fixed plate 2-1-3, it is preferable that welding manner is laser welding.

As shown in Figure 1, big rubber wheel fixed plate 2-1-3 is located at the first internal fixation plate 1-4-1 and the first outer stationary plates 1-2-1 Between, inner side edge and the first internal fixation plate 1-4-1 of big rubber wheel fixed plate 2-1-3 fastens, big rubber wheel fixed plate 2-1-3 Outer side edges fasten with the first outer stationary plates 1-2-1.

As shown in figure 4, the tail portion of the outer side edges of big rubber wheel fixed plate 2-1-3 is disposed with latch, card from back to front Slot and card edge, and the tail portion of the inner side edge along big rubber wheel fixed plate 2-1-3 is disposed with latch, card slot and card from back to front Edge；The front of big rubber wheel fixed plate 2-1-3 is provided with through-hole, and through-hole is cylindrical hole.

As shown in figure 4, latch is rectangle, positioned at the tail end of big rubber wheel fixed plate 2-1-3；Card slot is adjacent with latch, card Slot is the rectangular notch on the big periphery rubber wheel fixed plate 2-1-3, is respectively provided with an arc at two base angles of rectangular notch Notch；Card edge is adjacent with card slot, and the front end face for blocking the top margin and big rubber wheel fixed plate 2-1-3 on edge is smoothly connected；Card slot is clipped in Latch and card are between.

As shown in figure 4, big rubber wheel fixed plate 2-1-3 is symmetrical structure, the outer side edges of big rubber wheel fixed plate 2-1-3 and Symmetrical axial symmetry of the inner side edge about big rubber wheel fixed plate 2-1-3, symmetry axis prolong on rear side of big rubber wheel fixed plate 2-1-3 Reach the front side of big rubber wheel fixed plate 2-1-3；And the through-hole relative symmetry axial symmetry of the big front rubber wheel fixed plate 2-1-3 Setting.

As shown in figure 4, the rear end face of big rubber wheel fixed plate 2-1-3 is rectangle；The front end of big rubber wheel fixed plate 2-1-3 Face is an arc surface.The rear portion of big rubber wheel fixed plate 2-1-3 is provided with lightening hole, and lightening hole is the isosceles ladder with excessive angle Shape, lightening hole is relative to symmetrical axial symmetry.

As shown in figure 5, the middle part of big rubber wheel wheel shaft 2-1-2 is equipped with annulus, annulus side side is equipped with flange.As above Described, the front of big rubber wheel fixed plate 2-1-3 is provided with through-hole.Big rubber wheel wheel shaft 2-1-2 passes through through-hole, and big rubber wheel wheel Flange on axis 2-1-2 limits the movement of the big relatively large rubber wheel fixed plate 2-1-3 of rubber wheel wheel shaft 2-1-2, the outside of annulus Face and the medial surface of big rubber wheel fixed plate 2-1-3 through-hole fit, and use welding by the lateral surface of annulus and big rubber wheel The medial surface of fixed plate 2-1-3 is fixed together.

As shown in Figure 4 and Figure 5, the both ends of big rubber wheel wheel shaft 2-1-2 are equipped with internal thread hole, with big rubber wheel fixing screws 2-1-5 is matched.Big rubber wheel bearing 2-1-4, each big rubber are equipped between big rubber wheel 2-1-1 and big rubber wheel wheel shaft 2-1-2 Rubber tire component 2-1 includes rubber wheel bearing 2-1-4 four big, and each big rubber wheel 2-1-1 passes through two big rubber wheel shaft 2-1-4 is held to be connected with big rubber wheel wheel shaft 2-1-2.

It is of course also possible to be as shown in Figure 5A, big rubber wheel assembly 2-1 includes big rubber wheel 2-1-1, riveting axis 2-2-1- 2, big rubber wheel rivets fixed plate 2-1-3-1 and big rubber wheel bearing 2-1-4.Riveting axis 2-2-1-2 and the riveting of big rubber wheel are solid It is fixedly connected between fixed board 2-1-3-1.

As shown in Figure 5A, the middle part of riveting axis 2-2-1-2 is equipped with annular protrusions, has a plane in annular protrusions；Greatly The front of rubber wheel riveting fixed plate 2-1-3-1 is provided with through-hole, and a plane is milled in through-hole；Riveting axis 2-2-1-2 and big rubber Wheel riveting fixed plate 2-1-3-1 interference fit, the plane in plane and through-hole in annular protrusions in correspondence with each other so that riveting Axis 2-2-1-2 is fixedly connected with big rubber wheel riveting fixed plate 2-1-3-1, is unable to move relatively.

As shown in Figure 5A, each big rubber wheel 2-1-1 passes through rubber wheel bearing 2-1-4 two big and riveting axis 2-2-1- 2 are flexibly connected.The outer diameter of riveting axis 2-2-1-2 is corresponding to the internal diameter of big rubber wheel bearing 2-1-4 inner ring, using riveter by riveting Last item 2-2-1-2 is fixedly connected with the inner surface of big rubber wheel bearing 2-1-4 inner ring；Outside big rubber wheel bearing 2-1-4 outer ring Diameter is corresponding to the internal diameter of big rubber wheel 2-1-1, and the outer surface of big rubber wheel bearing 2-1-4 outer ring is interior with big rubber wheel 2-1-1's Surface is fixedly connected.

As described above, the first small rubber wheel component 2-2-1 include the first small rubber wheel 2-2-1-1, riveting axis 2-2-1-2, Axle retainer 2-2-1-3 and riveting axle bearing 2-2-1-4.First small rubber wheel 2-2-1-1 passes through riveting axle bearing 2-2-1-4 It is riveted with riveting axis 2-2-1-2.Riveting axis 2-2-1-2 and axle retainer 2-2-1-3 is interference fitted.Axle retainer 2-2-1- 3 are fixed between the first internal fixation plate 1-4-1 and the first outer stationary plates 1-2-1 by screw 1-7.

As shown in figure 3, the middle part of riveting axis 2-2-1-2 is equipped with annular protrusions, there is a plane in annular protrusions；Wheel shaft The front of fixing piece 2-2-1-3 is provided with through-hole, and a plane is milled in through-hole；Riveting axis 2-2-1-2 and axle retainer 2-2-1-3 Interference fit, the plane in plane and through-hole in annular protrusions in correspondence with each other so that riveting axis 2-2-1-2 is fixed with wheel shaft Part 2-2-1-3 is fixedly connected, and is unable to move relatively.

As shown in figure 3, being equipped with one between the end face and axle retainer 2-2-1-3 of each first small rubber wheel 2-2-1-1 A annular gasket avoids the friction between the first small rubber wheel 2-2-1-1 and axle retainer 2-2-1-3.

As shown in Figures 2 and 3, each first small rubber wheel 2-2-1-1 passes through two riveting axle bearing 2-2-1-4 and riveting Last item 2-2-1-2 is flexibly connected.The outer diameter of riveting axis 2-2-1-2 is corresponding to the internal diameter of riveting axle bearing 2-2-1-4 inner ring, uses Riveting axis 2-2-1-2 is fixedly connected by riveter with the inner surface of riveting axle bearing 2-2-1-4 inner ring；Riveting axle bearing 2-2-1- The outer diameter of 4 outer rings is corresponding to the internal diameter of the first small rubber wheel 2-2-1-1, the outer surface of riveting axle bearing 2-2-1-4 outer ring and the The inner surface of one small rubber wheel 2-2-1-1 is fixedly connected.

Riveting axis is made of A3 galvanized steel or 12 steel of chromium.

As shown in Figure 1, the first outer stationary plates 1-2-1 and the first internal fixation plate 1-4-1 structure are identical.First outer stationary plates 1- 2-1 is radially equipped with the first card slot and the second card slot, the latch phase of the first card slot and big rubber wheel fixed plate 2-1-3 outer side edges Cooperation, the second card slot are matched with the card of big rubber wheel fixed plate 2-1-3 outer side edges edge；First internal fixation plate 1-4-1 is radially Equipped with the first card slot and the second card slot, the first card slot is matched with the latch of big rubber wheel fixed plate 2-1-3 inner side edge, the second card Slot is matched with the card of big rubber wheel fixed plate 2-1-3 inner side edge edge.Big rubber wheel assembly 2-1 passes through its big rubber wheel fixed plate 2-1-3 and the first outer stationary plates 1-2-1 and the first internal fixation plate 1-4-1 clamping.

As shown in Figures 2 and 3, the axle retainer 2-2-1-3 of the first small rubber wheel component 2-2-1 is equipped with through-hole, the One outer stationary plates 1-2-1 and the first internal fixation plate 1-4-1 is equipped with corresponding with through-hole on axle retainer 2-2-1-3 logical Hole, screw 1-7 sequentially passes through the first outer stationary plates 1-2-1, axle retainer 2-2-1-3 and the first internal fixation plate 1-4-1 is laggard Row is fixed.

As shown in Figure 1, the universal wheel of the present embodiment includes six the first small rubber wheel component 2-2-1 altogether, each first is small Rubber wheel assembly 2-2-1 includes an axle retainer 2-2-1-3, so the universal wheel of the present embodiment includes six wheel shafts altogether The through-hole fixed for screw 1-7 there are two being all provided on fixing piece 2-2-1-3, each axle retainer 2-2-1-3.So this reality The universal wheel for applying example includes 12 screw 1-7 altogether.

As shown in Figures 2 and 4, abrasion prompt feature is equipped on big rubber wheel 2-1-1 and the first small rubber wheel 2-2-1-1. Antiskid groove is provided on the outer surface of big rubber wheel 2-1-1, abrasion prompt feature 2-3 is arranged in antiskid groove.Also, the Antiskid groove is provided on the outer surface of one small rubber wheel 2-2-1-1, abrasion prompt feature 2-3 is arranged in antiskid groove.

Abrasion prompt feature 2-3 be in the antiskid groove on big rubber wheel 2-1-1 and the first surface small rubber wheel 2-2-1-1 by The protrusion that the bottom surface of antiskid groove extends radially.The height of abrasion prompt feature 2-3 is the half of antiskid groove depth.Big rubber Abrasion on rubber tire 2-1-1 prompts 1 to 2 millimeter away from the outer surface big rubber wheel 2-1-1 of feature；On first small rubber wheel 2-2-1-1 Abrasion prompt feature away from the first 1 to 2 millimeter of outer surface small rubber wheel 2-2-1-1.

As shown in Figure 4 and Figure 5, it is provided with multi-turn groove on each big rubber wheel 2-1-1, is equipped in every circle groove multiple Abrasion prompt feature 2-3, multiple abrasions prompt feature 2-3 to be uniformly distributed in groove；On each first small rubber wheel 2-2-1-1 It is provided with multi-turn groove, multiple abrasion prompt feature 2-3 are equipped in every circle groove, multiple abrasion prompt feature 2-3 are in groove Inside it is uniformly distributed.

Two circle grooves are provided on each big outer surface rubber wheel 2-1-1, the outer surface big rubber wheel 2-1-1 is equipped with multiple groups Abrasion prompt feature 2-3, is separately positioned in two circle grooves by every group two, the circumferential position of every group of two abrasion prompt feature 2-3 It sets identical；And two circle grooves are provided on each first small rubber wheel 2-2-1-1, on the first outer surface small rubber wheel 2-2-1-1 It is provided with multiple groups abrasion prompt feature 2-3, every group two, is separately positioned in two circle grooves, every group of two abrasion prompts feature The circumferential position of 2-3 is identical.

Big rubber wheel 2-1-1 is equipped with cue mark, and the circumferential position of cue mark prompts feature with every group of two abrasion The circumferential position of 2-3 is identical, and is directed toward every group of two abrasion and prompts feature 2-3；First small rubber wheel 2-2-1-1 is equipped with instruction Label, the circumferential position of cue mark is identical as every group of two abrasions prompt circumferential position of feature 2-3, and is directed toward every group two Abrasion prompt feature 2-3.

Cue mark is isosceles triangle, and perpendicular bisector is directed toward every group of two abrasions prompt feature 2-3 from bottom edge to vertex； Cue mark is located on the inner face and/or outer end face of big rubber wheel 2-1-1；And cue mark is located at the first small rubber wheel 2- On the inner face and/or outer end face of 2-1-1.

Abrasion prompt feature 2-3 and big rubber wheel 2-1-1 on big rubber wheel 2-1-1 is integrally formed；First small rubber wheel Abrasion prompt feature 2-3 and the first small rubber wheel 2-2-1-1 on 2-2-1-1 is integrally formed.

As shown in Figure 1 to Figure 3, the shock-resistant member 3 of the present embodiment is the first shock-resistant member 3-1, including spring 3-1-1 and bullet Spring support plate 3-1-2.Spring 3-1-1 is fixedly connected with spring-support plate 3-1-2.

As shown in figure 3, spring-support plate 3-1-2 is arcuate structure, the inner end of spring 3-1-1 is fixed on spring-support plate 3- On the arcuate surface of 1-2；Specifically, the inner end of spring 3-1-1 is fixed on the central point of the arcuate surface of spring-support plate 3-1-2.

As shown in Figure 1, the outer surface of wheel shaft drive connection part 1-3 is equipped with card slot, spring-support plate 3-1-2 is fastened on card In slot.First small rubber wheel component 2-2-1 includes axle retainer 2-2-1-3, is set on the inner face of axle retainer 2-2-1-3 There is circular ring shape protrusion, the outer diameter of spring 3-1-1 is corresponding to the internal diameter of circular ring shape protrusion, and the outer end of spring 3-1-1 and circular ring shape are prominent It rises to match and be mounted in annulus protrusion.

Embodiment two

As shown in fig. 6, a kind of universal wheel includes wheel hub connection component 1, rubber wheel assembly 2 and shock-resistant member 3.

As shown in fig. 6, the wheel hub connection component 1 of the present embodiment includes the wheel set gradually from the outside of universal wheel to inside Protecting cover in the outer protecting cover 1-1 of hub, the second outer stationary plates 1-2-2, wheel shaft drive connection part 1-3, the second internal fixation plate 1-4-2 and wheel hub 1-5 and screw 1-6 for fixing.The outer protecting cover 1-1 of wheel hub, the second outer stationary plates 1-2-2, the second internal fixation plate 1-4-2 and The shape of protecting cover 1-5 is in regular hexagon in wheel hub, and the side of hexagon is inwardly recessed.

As shown in fig. 6, wheel shaft drive connection part 1-3 is for the connection between universal wheel and drive shaft.The outer protecting cover 1-1 of wheel hub It is fixed to each other with the second outer stationary plates 1-2-2 by screw 1-6.The fixation of wheel hub outer protecting cover 1-1 and the second outer stationary plates 1-2-2 Four screw 1-6 are needed altogether.Four screw 1-6 are distributed in four vertex of a rectangle, and two short sides of the rectangle are positive six One group of opposite side of side shape.Analogously, protecting cover 1-5 and the second internal fixation plate 1-4-2 are fixed to each other by screw 1-6 in wheel hub. The fixation of protecting cover 1-5 and the second internal fixation plate 1-4-2 need four screw 1-6 altogether in wheel hub.Four screw 1-6 are distributed in one Four vertex of rectangle, two short sides of the rectangle are one group of opposite side of regular hexagon.

As shown in fig. 6, rubber wheel assembly 2 includes big rubber wheel assembly 2-1 and small rubber wheel component 2-2.The present embodiment Small rubber wheel component 2-2 is the second small rubber wheel component 2-2-2.Big rubber wheel assembly 2-1 includes big rubber wheel 2-1-1, big rubber Rubber tire wheel shaft 2-1-2, big rubber wheel fixed plate 2-1-3, big rubber wheel bearing 2-1-4 and big rubber wheel fixing screws 2-1-5.The Two small rubber wheel component 2-2-2 include the second small rubber wheel 2-2-2-1, welding axis 2-2-2-2, wheel axis fixing plate 2-2-2-3 and Weld axle bearing 2-2-2-4.Each universal wheel of the present embodiment includes rubber wheel assembly 2-1 six big and six the second small rubbers Rubber tire component 2-2-2.Big rubber wheel assembly 2-1 and the second small rubber wheel component 2-2-2 is arranged alternately along the circumferential direction of universal wheel.

As shown in Figure 4 and Figure 5, each big rubber wheel assembly 2-1 includes two symmetrically arranged big rubber wheel 2-1-1, And each second small rubber wheel component 2-2-2 includes two symmetrically arranged second small rubber wheel 2-2-2-1.Big rubber wheel 2- Diameter of the 1-1 close to the big end rubber wheel fixed plate 2-1-3 is greater than big rubber wheel 2-1-1 far from the big end rubber wheel fixed plate 2-1-3 Diameter, big rubber wheel 2-1-1 diameter from its close to the big end rubber wheel fixed plate 2-1-3 to it far from big rubber wheel fixed plate 2- The end 1-3 is gradually reduced along the axis of big rubber wheel 2-1-1.Also, the second small rubber wheel 2-2-2-1 is close to wheel axis fixing plate 2- The diameter at the end 2-2-3 is greater than diameter of the second small rubber wheel 2-2-2-1 far from the wheel end axis fixing plate 2-2-2-3, the second small rubber It is small along second far from the wheel end axis fixing plate 2-2-2-3 to it close to the wheel end axis fixing plate 2-2-2-3 from it to take turns 2-2-2-1 diameter The axis of rubber wheel 2-2-2-1 is gradually reduced.The wheel face of the universal wheel of the present embodiment is by big rubber wheel 2-1-1 and the second small rubber Wheel 2-2-2-1 is spliced far from the end face of wheel shaft drive connection part 1-3.Wheel face in order to guarantee universal wheel is smooth, so greatly The diameter of rubber wheel 2-1-1 and the second small rubber wheel 2-2-2-1 are gradually reduced along its axis.

As described above, big rubber wheel assembly 2-1 includes big rubber wheel 2-1-1, big rubber wheel wheel shaft 2-1-2, big rubber wheel Fixed plate 2-1-3, big rubber wheel bearing 2-1-4 and big rubber wheel fixing screws 2-1-5.Big rubber wheel wheel shaft 2-1-2 and big rubber It is welded to connect between rubber tire fixed plate 2-1-3, it is preferable that welding manner is laser welding.

As shown in fig. 6, big rubber wheel fixed plate 2-1-3 is located at the second internal fixation plate 1-4-2 and the second outer stationary plates 1-2-2 Between, inner side edge and the second internal fixation plate 1-4-2 of big rubber wheel fixed plate 2-1-3 fastens, big rubber wheel fixed plate 2-1-3 Outer side edges fasten with the second outer stationary plates 1-2-2.

As shown in Figure 4 and Figure 5, the tail portion of the outer side edges of big rubber wheel fixed plate 2-1-3 is disposed with card from back to front Tooth, card slot and card edge, and the tail portion of the inner side edge along big rubber wheel fixed plate 2-1-3 is disposed with latch, card from back to front Slot and card edge；The front of big rubber wheel fixed plate 2-1-3 is provided with through-hole, and through-hole is cylindrical hole.

As shown in Figure 4 and Figure 5, latch is rectangle, positioned at the tail end of big rubber wheel fixed plate 2-1-3；Card slot and latch phase Neighbour, card slot are the rectangular notch on the big periphery rubber wheel fixed plate 2-1-3, are respectively provided with one at two base angles of rectangular notch Arc notch；Card edge is adjacent with card slot, and the front end face for blocking the top margin and big rubber wheel fixed plate 2-1-3 on edge is smoothly connected；Card slot Latch and card are clipped between.

As shown in Figure 4 and Figure 5, big rubber wheel fixed plate 2-1-3 is symmetrical structure, and big rubber wheel fixed plate 2-1-3's is outer The symmetrical axial symmetry of side and inner side edge about big rubber wheel fixed plate 2-1-3, symmetry axis is from big rubber wheel fixed plate 2-1-3's Rear side extends to the front side of big rubber wheel fixed plate 2-1-3；And the through-hole of the big front rubber wheel fixed plate 2-1-3 is relative to right Claim axial symmetry setting.

As shown in figure 4, the rear end face of big rubber wheel fixed plate 2-1-3 is rectangle；The front end of big rubber wheel fixed plate 2-1-3 Face is an arc surface.The rear portion of big rubber wheel fixed plate 2-1-3 is provided with lightening hole, and lightening hole is the isosceles ladder with excessive angle Shape, lightening hole is relative to symmetrical axial symmetry.

As shown in figure 5, the middle part of big rubber wheel wheel shaft 2-1-2 is equipped with annulus, annulus side side is equipped with flange.As above Described, the front of big rubber wheel fixed plate 2-1-3 is provided with through-hole.Big rubber wheel wheel shaft 2-1-2 passes through through-hole, and big rubber wheel wheel Flange on axis 2-1-2 limits the movement of the big relatively large rubber wheel fixed plate 2-1-3 of rubber wheel wheel shaft 2-1-2, the outside of annulus Face and the medial surface of big rubber wheel fixed plate 2-1-3 through-hole fit, and use welding by the lateral surface of annulus and big rubber wheel The medial surface of fixed plate 2-1-3 is fixed together, it is preferable that welding manner is laser welding.

As shown in Figure 4 and Figure 5, the both ends of big rubber wheel wheel shaft 2-1-2 are equipped with internal thread hole, with big rubber wheel fixing screws 2-1-5 is matched, and connects big rubber wheel wheel shaft 2-1-2 and big rubber wheel 2-1-1；Alternatively, as shown in Figure 5A, big rubber wheel 2- 1-1 can also directly be connect with riveting axis 2-2-1-2 riveting.It is equipped between big rubber wheel 2-1-1 and big rubber wheel wheel shaft 2-1-2 big Rubber wheel bearing 2-1-4, each big rubber wheel assembly 2-1 includes rubber wheel bearing 2-1-4 four big, each big rubber wheel 2- 1-1 passes through rubber wheel bearing 2-1-4 two big and is connected with big rubber wheel wheel shaft 2-1-2.

Similarly, as shown in figure 8, the second small rubber wheel component 2-2-2 includes the second small rubber wheel 2-2-2-1, welding axis 2-2-2-2, wheel axis fixing plate 2-2-2-3, welding axle bearing 2-2-2-4 and fixing screws 2-2-2-5.Weld axis 2-2-2-2 and It is welded to connect between wheel axis fixing plate 2-2-2-3, it is preferable that welding manner is laser welding.

As shown in fig. 6, wheel axis fixing plate 2-2-2-3 be located at the second internal fixation plate 1-4-2 and the second outer stationary plates 1-2-2 it Between, the inner side edge of wheel axis fixing plate 2-2-2-3 fastens with the second internal fixation plate 1-4-2, takes turns the outside of axis fixing plate 2-2-2-3 Side fastens with the second outer stationary plates 1-2-2.

As shown in figure 8, the tail portion of the outer side edges of wheel axis fixing plate 2-2-2-3 is disposed with latch, card slot from back to front It is disposed with latch, card slot and card edge from back to front with the tail portion on card edge, and the inner side edge along wheel axis fixing plate 2-2-2-3； The front of wheel axis fixing plate 2-2-2-3 is provided with through-hole, and through-hole is cylindrical hole.

As shown in figure 8, latch is rectangle, positioned at the tail end of wheel axis fixing plate 2-2-2-3；Card slot is adjacent with latch, card slot For the rectangular notch on the wheel periphery axis fixing plate 2-2-2-3, an arc notch is respectively provided at two base angles of rectangular notch； Card edge is adjacent with card slot, and the front end face of the top margin and wheel axis fixing plate 2-2-2-3 that block edge is smoothly connected；Card slot is clipped in latch and card Between.

As shown in figure 8, wheel axis fixing plate 2-2-2-3 is symmetrical structure, outer side edges and the inside of axis fixing plate 2-2-2-3 are taken turns Frontier juncture extends to wheel shaft on rear side of wheel axis fixing plate 2-2-2-3 in the symmetrical axial symmetry of wheel axis fixing plate 2-2-2-3, symmetry axis The front side of fixed plate 2-2-2-3；And the through-hole for taking turns the front axis fixing plate 2-2-2-3 is symmetrical arranged relative to symmetry axis.

As shown in figure 8, the rear end face of wheel axis fixing plate 2-2-2-3 is rectangle；Wheel axis fixing plate 2-2-2-3 front end face be One arc surface.The rear portion of wheel axis fixing plate 2-2-2-3 is provided with lightening hole, and lightening hole is the isosceles trapezoid with excessive angle, loss of weight Hole is relative to symmetrical axial symmetry.

Identical as big rubber wheel wheel shaft, the middle part of welding axis 2-2-2-2 is equipped with annulus, and annulus side side is equipped with convex Edge.As described above, the front of wheel axis fixing plate 2-2-2-3 is provided with through-hole.It welds axis 2-2-2-2 and passes through through-hole, and weld axis 2- Movement of the flange limitation welding axis 2-2-2-2 relative to wheel axis fixing plate 2-2-2-3 on 2-2-2, the lateral surface and wheel shaft of annulus The medial surface of fixed plate 2-2-2-3 through-hole fits, and by the lateral surface of annulus and takes turns axis fixing plate 2-2-2-3 using welding Medial surface be fixed together, it is preferable that welding manner is laser welding.

Identical as big rubber wheel wheel shaft, the both ends of welding axis 2-2-2-2 are equipped with internal thread hole, with fixing screws 2-2-2-5 It matches.Welding axle bearing 2-2-2-4, each second small rubber are equipped between second small rubber wheel 2-2-2-1 and welding axis 2-2-2-2 Rubber tire component 2-2-2 includes that four welding axle bearings 2-2-2-4, each second small rubber wheel 2-2-2-1 pass through two welderings Spindle bearing 2-2-2-4 is connected with welding axis 2-2-2-2.

As shown in fig. 6, the second outer stationary plates 1-2-2 and the second internal fixation plate 1-4-2 structure are identical.Second outer stationary plates 1- 2-2 is radially equipped with the first card slot and the second card slot, across the straight line of the first card slot and the second card slot by hexagon side Point, the first card slot are matched with the latch of big rubber wheel fixed plate 2-1-3 outer side edges, the second card slot and big rubber wheel fixed plate 2- The card edge of 1-3 outer side edges matches；Second internal fixation plate 1-4-2 is radially equipped with the first card slot and the second card slot, passes through first The straight line of card slot and the second card slot passes through the midpoint on hexagon side, the first card slot and big rubber wheel fixed plate 2-1-3 inner side edge Latch matches, and the second card slot is matched with the card of big rubber wheel fixed plate 2-1-3 inner side edge edge.Big rubber wheel assembly 2-1 is logical Cross its big rubber wheel fixed plate 2-1-3 and the second outer stationary plates 1-2-2 and the second internal fixation plate 1-4-2 clamping.

As shown in fig. 6, the second outer stationary plates 1-2-2 and the second internal fixation plate 1-4-2 structure are identical.Second outer stationary plates 1- 2-2 is radially equipped with third card slot and the 4th card slot, and the top of hexagon is passed through across the straight line of third card slot and the 4th card slot Point, third card slot are matched with the latch of wheel axis fixing plate 2-2-2-3 outer side edges, the 4th card slot and wheel axis fixing plate 2-2-2-3 The card edge of outer side edges matches；Second internal fixation plate 1-4-2 is radially equipped with third card slot and the 4th card slot, passes through third card slot Pass through the vertex of hexagon, the latch matching of third card slot and wheel axis fixing plate 2-2-2-3 inner side edge with the straight line of the 4th card slot It closes, the 4th card slot is matched with the card edge of wheel axis fixing plate 2-2-2-3 inner side edge.Second small rubber wheel component 2-2-2 passes through it Take turns axis fixing plate 2-2-2-3 and the second outer stationary plates 1-2-2 and the second internal fixation plate 1-4-2 clamping.

As shown in Figure 4 and Figure 8, abrasion prompt feature is equipped on big rubber wheel 2-1-1 and the second small rubber wheel 2-2-2-1 2-3.Antiskid groove is provided on the outer surface of big rubber wheel 2-1-1, abrasion prompt feature 2-3 is arranged in antiskid groove.And And second small rubber wheel 2-2-2-1 outer surface on be provided with antiskid groove, abrasion prompt feature 2-3 is arranged in antiskid groove It is interior.

As shown in Figure 4 and Figure 8, abrasion prompt feature 2-3 is big rubber wheel 2-1-1 and the second small rubber wheel 2-2-2-1 table The protrusion extended radially in the antiskid groove in face by the bottom surface of antiskid groove.The height of abrasion prompt feature 2-3 is anti-skidding recessed The half of groove depth.Abrasion on big rubber wheel 2-1-1 prompts 1 to 2 millimeter away from the outer surface big rubber wheel 2-1-1 of feature；Second Abrasion prompt feature on small rubber wheel 2-2-2-1 is away from the second 1 to 2 millimeter of outer surface small rubber wheel 2-2-2-1.

As shown in Figure 4 and Figure 5, it is provided with multi-turn groove on each big rubber wheel 2-1-1, is equipped in every circle groove multiple Abrasion prompt feature 2-3, multiple abrasions prompt feature 2-3 to be uniformly distributed in groove；On each second small rubber wheel 2-2-2-1 It is provided with multi-turn groove, multiple abrasion prompt feature 2-3 are equipped in every circle groove, multiple abrasion prompt feature 2-3 are in groove Inside it is uniformly distributed.

As shown in Figure 4 and Figure 5, two circle grooves, big rubber wheel 2-1-1 are provided on each big outer surface rubber wheel 2-1-1 Outer surface is equipped with multiple groups abrasion prompt feature 2-3, every group two, is separately positioned in two circle grooves, every group of two abrasions mention Show that the circumferential position of feature 2-3 is identical；And as shown in figure 8, be provided with two circle grooves on each second small rubber wheel 2-2-2-1, It is provided with multiple groups abrasion prompt feature 2-3 on second outer surface small rubber wheel 2-2-2-1, every group two, is separately positioned on two circles In groove, the circumferential position of every group of two abrasion prompt feature 2-3 is identical.

Big rubber wheel 2-1-1 is equipped with cue mark, and the circumferential position of cue mark prompts feature with every group of two abrasion The circumferential position of 2-3 is identical, and is directed toward every group of two abrasion and prompts feature 2-3；Second small rubber wheel 2-2-2-1 is equipped with instruction Label, the circumferential position of cue mark is identical as every group of two abrasions prompt circumferential position of feature 2-3, and is directed toward every group two Abrasion prompt feature 2-3.

Cue mark is isosceles triangle, and perpendicular bisector is directed toward every group of two abrasions prompt feature 2-3 from bottom edge to vertex； Cue mark is located on the inner face and/or outer end face of big rubber wheel 2-1-1；And cue mark is located at the second small rubber wheel 2- On the inner face and/or outer end face of 2-2-1.

Abrasion prompt feature 2-3 and big rubber wheel 2-1-1 on big rubber wheel 2-1-1 is integrally formed；Second small rubber wheel Abrasion prompt feature 2-3 and the second small rubber wheel 2-2-2-1 on 2-2-2-1 is integrally formed.

As shown in Figure 6 and Figure 7, the shock-resistant member 3 of the present embodiment be the second shock-resistant member 3-2, including foam-rubber cushion 3-2-1 and Sponge support frame 3-2-2.Foam-rubber cushion 3-2-1 is fixedly connected with sponge support frame 3-2-2.

As shown in fig. 7, sponge support frame 3-2-2 is arcuate structure；The inner surface of sponge support frame 3-2-2 is concave surface, sea Silk floss pad 3-2-1 is fixed on the inner surface of sponge support frame 3-2-2；The inner surface of sponge support frame 3-2-2 is by foam-rubber cushion 3-2-1 Covering.

As shown in fig. 6, the outer surface of wheel shaft drive connection part 1-3 is equipped with groove, foam-rubber cushion 3-2-1 is fastened on groove It is interior.

As shown in fig. 6, sponge support frame 3-2-2 be fixed on the second outer stationary plates 1-2-2 and the second internal fixation plate 1-4-2 it Between.It is all provided on the outer surface of each sponge support frame 3-2-2 there are four pillar, every two pillar is one group, one group of pillar setting In the left end of sponge support frame 3-2-2, the right end of sponge support frame 3-2-2 is arranged in another group of pillar, and two groups of pillars are mutually opposite Claim.Distance between two pillars of each group is consistent.Second outer stationary plates 1-2-2 is equipped with through-hole, and the position of through-hole is opposite with pillar It answers；And second internal fixation plate 1-4-2 be equipped with through-hole, the position of through-hole is corresponding with pillar.Second shock-resistant member 3-2 is also wrapped Compression bar is included, compression bar both ends are respectively arranged with plug.The diameter of plug is less than the diameter of compression bar ontology, plug and compression bar in step-like Structure.The diameter of plug is corresponding to the diameter of through-hole on the second outer stationary plates 1-2-2, and the diameter of plug and the second internal fixation plate The diameter of the upper through-hole of 1-4-2 is corresponding.The plug at compression bar both ends is inserted into the second outer stationary plates 1-2-2 and the second internal fixation plate respectively Compression bar is fixed between the second outer stationary plates 1-2-2 and the second internal fixation plate 1-4-2 by the through-hole on 1-4-2.Compression bar ontology card Between every group of two pillars of sponge support frame 3-2-2, the mobile effect of limitation sponge support frame 3-2-2 is played.

As shown in fig. 6, each universal wheel of the present embodiment includes six the second shock-resistant member 3-2, each second is shockproof Component 3-2 includes a foam-rubber cushion 3-2-1, a sponge support frame 3-2-2 and two compression bars, so the present embodiment is every A universal wheel includes 12 compression bars.

Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects Step is described in detail, it should be understood that being not used to limit this foregoing is merely specific embodiment of the utility model The protection scope of utility model, within the spirit and principle of the utility model, any modification for being made, changes equivalent replacement Into etc., it should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of welding axis, it is characterised in that: the welding axis includes welding shaft body and is arranged in the welding shaft body The welding shaft body is divided into welding axis left part and welding axis right part by the annular shape protrusion at middle part, the circular protrusion.

2. welding axis according to claim 1, it is characterised in that: the side of the circular protrusion is equipped with flange.

3. welding axis according to claim 1, it is characterised in that: the left side of the welding axis is provided with left blind hole, described Internal screw thread, the center overlapping of axles of the central axis of the left blind hole and the welding axis are provided on left blind hole hole wall；And the weldering The right side of spindle is provided with right blind hole, is provided with internal screw thread on the right blind hole hole wall, the central axis of the right blind hole with it is described Weld the center overlapping of axles of axis.

4. welding axis according to claim 1, it is characterised in that: the welding axis includes in big rubber wheel assembly (2-1) Big rubber wheel wheel shaft (2-1-2) and the second small rubber wheel component (2-2-2) in welding axis (2-2-2-2)；The big rubber The big rubber wheel wheel shaft (2-1-2) in wheel assembly (2-1) and the weldering in the second small rubber wheel component (2-2-2) Spindle (2-2-2-2) is identical.

5. a kind of rubber wheel assembly, it is characterised in that: the rubber wheel assembly includes the weldering as described in any one of Claims 1-4 Spindle, two rubber wheels, rubber wheel fixed plate, rubber wheel bearing and rubber wheel fixing screws；The rubber wheel fixed plate and institute Welding axis is stated to be fixedly connected；Two rubber wheels pass through the rubber with the welding axis left part and the welding axis right part respectively Rubber tire bearing and rubber wheel fixing screws connection；

The rubber wheel includes big rubber wheel (2-1-1) and the second small rubber wheel component (2-2- in big rubber wheel assembly (2-1) 2) the second small rubber wheel (2-2-2-1) in；The rubber wheel fixed plate includes the big rubber in the big rubber wheel assembly (2-1) Wheel axis fixing plate (2-2-2-3) in rubber tire fixed plate (2-1-3) and the second small rubber wheel component (2-2-2)；The rubber Glue shaft contracts big rubber wheel bearing (2-1-4) and the second small rubber wheel group included in the big rubber wheel assembly (2-1) Welding axle bearing (2-2-2-4) in part (2-2-2)；The rubber wheel fixing screws include the big rubber wheel assembly (2-1) In big rubber wheel fixing screws (2-1-5) and the second small rubber wheel component (2-2-2) in fixing screws (2-2-2- 5)。

6. a kind of rubber wheel assembly according to claim 5, it is characterised in that: the front of the rubber wheel fixed plate is provided with One through-hole, the diameter of the through-hole are corresponding to the outer diameter of annular shape protrusion in the middle part of the welding shaft body；The through-hole it is interior Surface and the outer surface of the circular protrusion fit.

7. a kind of rubber wheel assembly according to claim 6, it is characterised in that: the circular raised side is arranged in The outer diameter of flange is greater than the internal diameter of the through-hole, the welding axis and rubber wheel fixed plate unilateral side card at the flange It closes；The welding axis and the rubber wheel fixed plate are welded to connect, and the welding manner is laser welding.

8. a kind of rubber wheel assembly according to claim 5, it is characterised in that: two rubber wheels pass through described respectively Welding axis left part and the welding axis right part are mounted on the left and right sides of the rubber wheel fixed plate；Two rubber wheel difference It is connect by the rubber wheel bearing with the welding axis left part and the welding axis right part；

The outer diameter of the welding axis is corresponding to the internal diameter of the rubber wheel bearing inner ring, the outer surface of the welding axis and the rubber The inner surface of rubber tire bearing inner ring is fixedly connected；The outer diameter of the welding axle bearing outer ring is corresponding to the internal diameter of the rubber wheel, The outer surface of the welding axle bearing outer ring is fixedly connected with the inner surface of the rubber wheel.

9. a kind of rubber wheel assembly according to claim 5, it is characterised in that: the screw thread in the rubber wheel fixing screws It is matched with the internal screw thread in the welding shaft end portion.

10. a kind of universal wheel, it is characterised in that: including the rubber wheel assembly as described in any one of claim 5 to 9；The rubber Wheel assembly includes big rubber wheel assembly (2-1) and the second small rubber wheel component (2-2-2).