CN207523386U - trolley - Google Patents

Abstract

The utility model is related to a kind of trolley, more particularly to a kind of trolley.The trolley includes vehicle frame, vehicle bridge, damper and multiple wheels, the vehicle bridge includes the first end and the second end that are oppositely arranged, the vehicle bridge is rotatably connected close to the position of first end and vehicle frame, the vehicle bridge passes through damper and vehicle frame elastic connection close to the position of the second end, the wheel is connected to the first end and the second end of vehicle bridge, the trolley further includes fixed mechanism, the fixed mechanism includes the first fixing device and the second fixing device that are separately set, first fixing device is fixedly connected with the second fixing device one of both with vehicle frame, another one is fixedly connected with vehicle bridge, first fixing device and the second fixing device can be fixed together, at least movement of the limitation vehicle frame relative to vehicle bridge on vertical level direction.Trolley in the utility model has many advantages, such as except road surface adaptability and good damping effect, and for carrier, comfort is more preferable.

Description

Trolley

【Technical field】

The utility model is related to a kind of trolley, more particularly to a kind of trolley.

【Background technology】

With the development of the times, user is higher and higher for the performance requirement of trolley.The Product Precision transported on trolley Or when being worth higher, user proposes higher demand to the shockproof properties of trolley.Trolley of the prior art, shock resistance The demand of user can gradually be not achieved.

Therefore, how to provide a kind of shockproof properties good trolley, just into the demand of trolley technical field！

【Utility model content】

The technical issues of to overcome existing trolley shockproof properties bad, the utility model provides a kind of trolley.

The scheme that the utility model solves technical problem is to provide a kind of trolley, and the trolley includes vehicle frame, vehicle bridge, damping Device and multiple wheels, the vehicle bridge include the first end and the second end that are oppositely arranged, and the vehicle bridge is close to first end Position and vehicle frame are rotatably connected, the vehicle bridge close to the position of the second end by damper and vehicle frame elastic connection, it is described Wheel is connected to the first end and the second end of vehicle bridge, and the trolley further includes fixed mechanism, the fixed mechanism packet Include the first fixing device and the second fixing device being separately set, first fixing device and the second fixing device one of both It is fixedly connected with vehicle frame, another one is fixedly connected with vehicle bridge, and first fixing device and the second fixing device can be fixed on one It rises, at least limits movement of the vehicle frame relative to vehicle bridge on vertical level direction.

Preferably, second fixing device is a fixed plate, and first fixing device is a clamping device, and clamping fills It puts and clamps fixed plate, limitation vehicle frame is moved relative to vehicle bridge along vertical level direction.

Preferably, first fixing device includes driving unit and at least two clamping elements, and the clamping element and driving are single Member is fixedly connected, and per side, respectively a setting at least clamping element, the driving unit can push two in the both sides of the fixed plate Clamping element is close to each other with the mobile plate that is fixedly clamped.

Preferably, trolley further includes position-limit mechanism, and the position-limit mechanism includes the first limiting device being separately set and the Two limiting devices, first limiting device and the second limiting device one of both are fixedly connected with vehicle frame, another one and first Vehicle bridge is fixedly connected, and second limiting device is at least partially housed in the first limiting device, and limitation vehicle frame is with respect to the first vehicle Bridge along the horizontal plane move by direction.

Preferably, first limiting device includes the gap of vertical level, and second limiting device is a limiting Plate, the limiting plate are partially received in the gap.

Preferably, first limiting device further includes connecting plate and multiple rotating rollers, the rotating roller formed it is two rows of and Connecting plate is rotatably connected, and the gap of vertical level is formed between the two rows rotating roller.

Preferably, the gap of insertion in the width direction of the limiting plate, the width of the limiting plate is from close to road surface One end be gradually reduced to far from the one end on road surface.

Preferably, the fixed plate is fixed on by connecting plate on vehicle frame or vehicle bridge.

Preferably, the trolley further includes controller and sensor, and the damper includes damper, damper and sensing Device is all electrically connected with controller, the damping change of pavement behavior control damper that the controller is detected according to sensor.

Preferably, the vehicle bridge includes the first plate body, the second plate body, third plate body, the 4th plate body and the 5th plate body, described Connection from beginning to end is in falling " several " font successively for first plate body, the second plate body, third plate body, the 4th plate body and the 5th plate body, and described the End where one plate body is first end, and end where the 5th plate body is the second end, and a resigning is opened up on the 4th plate body Slot, the recessing groove are opened up to the 4th plate body from end face of the 4th plate body far from third plate body one end close to the one of third plate body End, the shock absorber section are arranged in recessing groove and are rotatably connected with the bottom of recessing groove.

Compared with prior art, the trolley of the utility model includes vehicle frame, vehicle bridge, damper and multiple wheels, the vehicle Bridge includes the first end and the second end that are oppositely arranged, and the vehicle bridge rotatably connects close to the position of first end and vehicle frame It connects, for the vehicle bridge close to the position of the second end by damper and vehicle frame elastic connection, the wheel is connected to vehicle bridge First end and the second end, the trolley further includes fixed mechanism, and it is solid that the fixed mechanism includes be separately set first Determine device and the second fixing device, first fixing device is fixedly connected with the second fixing device one of both with vehicle frame, separately One is fixedly connected with vehicle bridge, and first fixing device and the second fixing device can be fixed together, and limitation vehicle frame is with respect to vehicle Bridge is moved along vertical level direction, and the energy of trolley vibrations is consumed in the acting of vehicle bridge and vehicle frame relative motion, vehicle bridge It is rotatably connected with the other end of vehicle frame, the variation of the distance between the first vehicle bridge and vehicle frame is smaller, makes trolley shockproof, whole There are vibrations slight, shockproof properties are excellent, and the shockproof effect than the prior art greatly improves, and road surface adaptability further improves, First fixing device and the second fixing device can be fixed together, even if vehicle bridge and vehicle frame become an entirety, on trolley During handling goods, vehicle bridge and vehicle frame are relatively fixed, and trolley will not shake, and handling goods is safer.

First fixing device of the utility model includes driving unit and at least two clamping elements, and the clamping element and driving are single Member is fixedly connected, and per side, respectively a setting at least clamping element, the driving unit can push two in the both sides of the fixed plate Clamping element is close to each other with the mobile plate that is fixedly clamped, and the first fixture structure is simple, manufactures at low cost, fixation.

The trolley of the utility model further includes position-limit mechanism, and the position-limit mechanism includes the first limiting device being separately set With the second limiting device, first limiting device and the second limiting device one of both are fixedly connected with vehicle frame, another one and First vehicle bridge is fixedly connected, and second limiting device is at least partially housed in the first limiting device, and limitation vehicle frame is with respect to the One vehicle bridge along the horizontal plane move, and the first limiting device and the second limiting device prevent the first vehicle bridge from swinging, and make small by direction Garage will not be deformed, the performance of trolley further improves easily into more stable.

First limiting device of the utility model further includes multiple rotating rollers, and the rotating roller forms two rows of and connecting plate can It is rotatablely connected, the gap of vertical level is formed between the two rows rotating rollers, between the first limiting device and limiting plate For pivoting friction, the service life of limiting device and limiting plate is improved, a large amount of heat will not be generated between the rwo.

The gap of insertion in the width direction of the limiting plate of the utility model, the width of the limiting plate is from close to road surface One end be gradually reduced to far from the one end on road surface, the shape of limiting plate is rotatably connected resigning for vehicle bridge relative frame, structure Rationally.

The fixed plate of the utility model is fixed on by connecting plate on vehicle frame or vehicle bridge, saves trolley space, reduces trolley Volume reduces trolley cost.

The trolley of the utility model further includes controller, and the damper includes damper, and controller is connected to damper, The controller controls the damping change of damper according to pavement behavior, and trolley can adapt to different road surfaces, be attained by very Good damping effect increases the adaptability of trolley.

The vehicle bridge of the utility model is in " several " font, rational in infrastructure, reduces trolley center, and trolley travelling is more steady, and the 4th A recessing groove is opened up on plate body, the recessing groove is opened up to third plate body from end face of the 4th plate body far from third plate body one end and leaned on All over one end of body, the shock absorber section is arranged in recessing groove and is rotatably connected with the bottom of recessing groove nearly third, steps down Slot opens up the weight for alleviating vehicle bridge, and reduces the height of trolley, reduces the center of trolley, reduces the volume of trolley, Reduce the cost of trolley.

【Description of the drawings】

Fig. 1 is the dimensional structure diagram of the utility model trolley.

Fig. 2 is the side structure schematic view of the utility model trolley.

Fig. 3 is the main structure diagram of the utility model trolley.

Fig. 4 is the sectional perspective structure diagram of the utility model trolley.

Fig. 5 is the dimensional structure diagram of the utility model damper.

Fig. 6 be the utility model anti-tilt device, damper, limiting plate connection dimensional structure diagram.

Fig. 7 is the partial structural diagram of the trolley of the utility model.

Fig. 8 is the structure diagram at another visual angle in Fig. 7.

Fig. 9 is the structure diagram of the car wheel of the utility model.

Figure 10 is the dimensional structure diagram of the trolley connector of the utility model.

【Specific embodiment】

In order to make the purpose of this utility model, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to solve The utility model is released, is not used to limit the utility model.

Referring to Fig. 1, the utility model provides a kind of trolley 1, which includes vehicle body 10 and wheel 30,30 He of wheel Vehicle body 10 connects.Wheel 30 can drive vehicle body 10 to move in running.

Also referring to Fig. 2 to Fig. 4, vehicle body 10 includes vehicle frame 11 and two vehicle bridge 12, respectively the first vehicle bridge 13 and the Two vehicle bridge 15.First vehicle bridge 13 and the second vehicle bridge 15 are parallel to the opposite both sides of 1 moving direction of trolley positioned at vehicle frame 11 respectively.The One vehicle bridge 13 includes the first end 131 being oppositely arranged and the second end 132, and the first vehicle bridge 13 is close to the position of first end 131 It puts and is connected with 11 shaft of vehicle frame, first vehicle bridge 13 is close to 11 elastic connection of the position of the second end 132 and vehicle frame, the vehicle Wheel 30 is connected to the first end 131 of the first vehicle bridge 13 and the second end 132, when the trolley 1 is in roughness pavement row Into when, first vehicle bridge 13 is rotated around the position that the first vehicle bridge 13 is connected with 11 shaft of vehicle frame, and the wheel 30, the first vehicle The distance between bridge 13 and vehicle frame 44 change back and forth in the presence of a tensile force.It is appreciated that the both ends connection of the first vehicle bridge 13 30 quantity of wheel do not limit one, may be multiple.

Vehicle body 10 further includes anti-tilt device 17 and damper 19.A part for anti-tilt device 17 is fixedly connected with vehicle frame 11, Anti-tilt device 17 passes through 12 elastic connection of two dampers 19 and two vehicle bridge simultaneously.Damper 19 is hit scalable after power and is rushing It restores to the original state after hitting power revocation.When trolley 1 is when roughness pavement is advanced, the damper 19 is compressed, and damper 19 can contract Short and elongation, damper 19 generate elastic force to vehicle bridge 12 and anti-tilt device 17, and 12 relative frame 11 of vehicle bridge rotates, vehicle bridge 12, The distance between wheel 30 and vehicle frame 11 change back and forth in the presence of a tensile force.Vehicle frame 11 can more be stablized, 1 shockproof effect of trolley More preferably.

First vehicle bridge 13 further includes the middle part (non-label) being connected between first end 131 and the second end 132.The One vehicle bridge 13 is connected close to the position of first end 131 with 11 shaft of vehicle frame, and the first vehicle bridge 13 is close to the position of the second end 132 Pass through 17 elastic connection of damper 19 and anti-tilt device.Preferably, at least part of height of the height of middle part is less than first End 131 and/or the second end 132.Preferably, for the height of middle part simultaneously less than the height at both ends, 1 center of gravity of trolley is low, It advances more steady.In the present embodiment, first end 131 is equal with the height of the second end 132.As a kind of selection, One vehicle bridge 13 further includes the first plate body 135, the second plate body 136, third plate body 137, the 4th plate body 138 and the 5th plate body 139.The Head and the tail connection is in fall successively for one plate body 135, the second plate body 136, third plate body 137, the 4th plate body 138 and the 5th plate body 139 " several " font.First plate body, 135 place end is first end 131, and the 139 place end of the 5th plate body is the second end 132.It is excellent Selection of land, the first plate body 135,137 and the 5th plate body 139 of third plate body are roughly parallel to horizontal plane.Preferably, the second plate body 136 With 138 substantially vertical horizontal plane of the 4th plate body.Preferably, the position and vehicle that the second plate body 136 is fixedly connected with third plate body 137 11 shaft of frame connects, to reduce the center of gravity of trolley 1.A recessing groove 1381, recessing groove 1381 from the 4th are opened up on 4th plate body 138 End face of the plate body 138 far from 137 one end of third plate body is opened up to the 4th plate body 137 close to one end of third plate body 137, damper 19 parts are arranged in recessing groove 1381 and are connected with the bottom shaft of recessing groove 1381.When trolley 1 is advanced in roughness pavement When, damper 19 stretches back and forth, 30 and first vehicle bridge 13 of wheel to be rotated centered on the tie point of the first vehicle bridge 13 and vehicle frame 11, And the distance between wheel 30, the first vehicle bridge 13 and vehicle frame 11 change back and forth.It is it is appreciated that " more described in the utility model It is a " it is " two and two or more ".

Second vehicle bridge 15 includes third end (non-label) and the 4th end (non-label) etc..The structure of second vehicle bridge 15 and The structure of first vehicle bridge 13 is consistent, the connection knot of the second vehicle bridge 15 and damper 19, anti-tilt device 17, vehicle frame 11, wheel 30 etc. Structure is all consistent, therefore the utility model is no longer introduced.What deserves to be explained is 11 shaft of the first vehicle bridge 13, the second vehicle bridge 15 and vehicle frame One end of connection is located at the same end of trolley 1, and both third end and first end 131 were located at the same end of trolley 1.It can manage Solution, trolley 1 also can only set a vehicle bridge 12, and vehicle bridge 12 is located at the vertical middle part of trolley 1, and such as existing two wheels is small Vehicle.

It please join together refering to Fig. 5 and Fig. 6, damper 19 has multiple, and each damper 19 includes damper 191 and elastic component 192, damper 191 and elastic component 192 correspond.Damper 191 and elastic component 192 are scalable after stress and removed in power It restores to the original state after pin, when by impact force on the direction of road surface, damper 191 shortens, and elastic component 192, which is pressurized, to be provided Cushion effect, when impact force cancels, damper 191 and elastic component 192 restore to the original state.Elastic component 192 is preferably spring.Damper 19 be preferably MR vibration damper or spring damper or hydraulic damper or CDC dampers.Each elastic component 192 is arranged respectively On a damper 191.191 one end of damper is connected with 13 shaft of the first vehicle bridge, 191 other end of damper and anti-tilt device 17 Shaft connects.The connecting portion of 191 and first vehicle bridge 13 of damper is less than the second end 132 or first end 131.It can manage Solution, damper 19 can not also be connected by anti-tilt device 17 with 11 shaft of vehicle frame, and damper 19 can directly connect with 11 shaft of vehicle frame It connects, integrally formed axis, bar or the plank of protrusion is such as set on vehicle frame 11, it is integrally formed on damper 19 and vehicle frame 11 Axis, bar or the connection of plank shaft.

Preferably, trolley 1 further includes controller and sensor (non-view), and controller and sensor can be as needed It is arranged on 1533 grade components of vehicle frame 11 or damper.The controller is electrically connected at sensor and damper.The control The damping change of pavement behavior control damper that device is sensed according to sensor.The parameter that sensor is sensed is included but not It is defined in the flatness on road surface, the vibration amplitude of trolley 1, the bearing capacity of trolley 1, the speed of service, suffered impact force etc. It is one or more.

The bottom of anti-tilt device 17 is fixedly connected with vehicle frame 11,19 shaft of the opposite both ends of anti-tilt device 17 and damper Connection.In trolley 1 when roughness pavement is advanced, damper 19 is compressed generates elastic force, anti-tilt device 17 to anti-tilt device 17 Reaction force can be generated to damper 19, anti-tilt device 17 is unlikely to deform, and prevents trolley 1 from toppling over.It is appreciated that anti-tilt device 17 It can be integrally formed with vehicle frame 11.

Also referring to Fig. 6 to Fig. 8, the vehicle body 10 of trolley 1 further includes position-limit mechanism (non-label).Position-limit mechanism includes dividing The first limiting device 25 and the second limiting device 27 of body setting.27 one of both of first limiting device 25 and the second limiting device It is fixedly connected with vehicle frame 11, another one is fixedly connected with the first vehicle bridge 13, and the second limiting device 27 is at least partially housed in first In limiting device 25, limitation vehicle frame relative to vehicle bridge, move along the horizontal plane by direction.In the present embodiment.First limiting device 25 and One vehicle bridge 13 is fixedly connected, and the second limiting device 27 is fixedly connected with vehicle frame 11.

A second limiting device 27 preferably limiting plate, the substantially vertical horizontal plane of limiting plate.Limiting plate is in the width direction The first limiting device 25 is contained in, the width of limiting plate is gradually reduced from close to the one end of the one end on road surface to separate road surface.It is excellent Selection of land, limiting plate 27 arc-shaped are gradually changed in the shape of width direction.Vehicle bridge 12 is connected around 11 shaft of vehicle frame, therefore limiting plate 27 It is arc-shaped, it is that the rotation of vehicle bridge 12 is stepped down, prevents limiting plate 27 and vehicle bridge 12 from interfering.

First limiting device 25 includes connecting plate 251, and connecting plate 251 is fixedly connected with the first vehicle bridge 13, on connecting plate 251 The gap of one vertical level is set, so that limiting plate is partially received in gap namely in inserted into gap.Specifically, first Limiting device 25 further includes two sliding rails 254 and multiple rotating rollers 252.Sliding rail 254 is parallel to be fixed on connecting plate 251, multiple Rotating roller 252 is mounted on sliding rail 254, and rotating roller 252 can be rotated relative to sliding rail 254 and connecting plate 251.Rotating roller 252 is formed Two rows, 254 place straight line of sliding rail, often the straight line where row's rotating roller 252 and horizontal plane are substantially vertical, two rows of rotating rollers 252 it Between form the gap 253, limiting plate is inserted into the width direction in the gap 253.The width in gap is than the thickness of limiting plate Big 0-3mm, preferably 0-2mm, further preferably 0-1mm, 0-0.8mm.It is appreciated that rotating roller 252 can be not provided with, limit Position plate 27 is between sliding rail 254.It is appreciated that sliding rail 254 can be not provided with, rotating roller 252 forms two rows, each rotating roller 252 and connecting plate 251 be rotatably connected, form gap between two rows of rotating rollers 252.It is appreciated that can not also be in connecting plate Fixed rack 254 on 251 open up limit sliding chutes to form sliding rail on connecting plate 251.

The vehicle body 10 of trolley 1 further includes fixed mechanism (non-label), and fixed mechanism includes be separately set first and fixes dress 21 and second fixing device 23 are put, the first fixing device 21 is fixedly connected with 23 one of both of the second fixing device with vehicle frame 11, Another one is fixedly connected with the first vehicle bridge 13, and 21 and second fixing device 23 of the first fixing device can be fixed together, vehicle 11 and first vehicle bridge 13 of frame at least limits vehicle frame 11 with respect to shifting of first vehicle bridge 13 on vertical level direction into an entirety Dynamic, toward whens placing or unload cargo etc. on trolley 1, trolley 1 will not teetertotter, and not interfere with arrangement of goods or unloading. In the present embodiment.First fixing device 21 is fixedly connected with vehicle frame 11, and the second fixing device 23 and the first vehicle bridge 13 are fixed and connected It connects.

Second fixing device 23 is preferably a fixed plate.Fixed plate is fixed in the first vehicle bridge 13.Preferably, fixed plate 23 It is substantially vertical with horizontal plane.As a kind of deformation, the second fixing device is fixed on by the connecting plate 251 of the first limiting device 25 In first vehicle bridge 13.

First fixing device 21 is preferably a clamping device, and the second fixing device 23 is clamped when fixing device 21 works, First vehicle bridge 13 and vehicle frame 11 can be integrally fixed.Specifically, the first fixing device 21 includes driving unit 211 and at least two Clamping element 212, driving unit 211 are fixed on vehicle frame, and clamping element 212 is fixedly connected with driving unit 211, in the fixed plate Both sides in per side, respectively a setting at least clamping element 212, driving unit 211 can push two clamping elements 212 close to each other to move The dynamic plate that is fixedly clamped.In the present embodiment, clamping device is preferably a disk brake, and disk brake presss from both sides under hydraulic-driven Fasten fixed board 23.Disk brake is brake of the prior art, and the utility model is no longer further described its concrete structure. The fixing device 21 that the utility model converts brake for trolley 1, it is simple in structure, realize clamping function.

It is appreciated that the second vehicle bridge 15 and the connection structure of position-limit mechanism and the first vehicle bridge 13 and the connection of position-limit mechanism Structure is consistent；Second vehicle bridge 15 and the connection structure of fixed mechanism and the first vehicle bridge 13 are consistent with the connection structure of position-limit mechanism, The utility model is no longer introduced.

Also referring to Fig. 9 and Figure 10, wheel 30 includes wheel 38, motor 31, gear-box 32, wheel mount 33, brake disc 37 and brake 36.Motor 31 and gear-box 32 are fixed in vehicle bridge 12, and the rotary shaft and gear-box 32 of motor 31 connect, gear Case 32 and wheel mount 33 connect, and wheel 38 and brake disc 37 are coaxially connected and be rotatably connected with wheel mount 33,36 He of brake Wheel mount 33 is fixedly connected.The rotary shaft rotational driving gear case 32 of motor 31 rotates, and then drives wheel mount 33,38 turns of wheel 360 ° of rotations to realize wheel 38 are moved, and are turned to flexible；Brake disc 37 is clamped when brake 36 works prevents wheel 38 from rotating, Trolley 1 realizes brake.It is appreciated that wheel 38 realizes 360 ° of rotations, in road surface, wheel rotates real the central axis of rotation The steering of existing trolley.

Motor 31 is preferably stepper motor, and rotating speed can realize control and accurate, and the distance that trolley 1 moves is accurate.Motor 31 are alternatively common electric machine.Motor 31 can realize rotating, so as to which trolley 1 can left and right turn；Motor 31 can connect in same direction Continuous rotation, wheel 38 can be rotated as universal wheel.

Gear-box 32 is preferably worm-gear speed reducer.The connection structure of 31 rotary shaft of gear-box 32 and motor is preferably key Connection.Gear-box 32 is preferably hollow gear-box namely hollow speed reducer, and being provided with first at the axle center of central shaft walks Line passage (non-label), the first cable tray is passed through for electric conduction routing.

Wheel 30 further includes connector (non-label), and connector is used for tooth connection roller box 32 and wheel mount 33.The connection The central axis of part is provided with the second cable tray (non-label), the first cable tray and the connection of the second cable tray.In this way, vehicle Electric conduction routing on wheel 30 passes through the first cable tray and the second cable tray to be connect with the device electric except wheel 30, wheel 38 when rotating for 360 °, is not in circuit winding.Specifically, connector includes connecting rod 34 and flange 35, connecting rod 34 is inserted Enter in gear-box 32 and gear-box 32 connects.Connecting rod 34 and the connection structure of gear-box 32 are preferably keyed.Connecting rod 34 It is fixedly connected by flange 35 with wheel mount 33, gear-box 32 rotates and then drives connecting rod 34,33 turns of flange 35 and wheel mount It is dynamic.Preferably, connecting rod 34 and flange 35 are integrally formed.Second cable tray axially penetrates through connecting rod 34 and flange 35 simultaneously.

Wheel mount 33 is L-shaped, and one end is fixedly connected with flange 35, and the other end and wheel 38 are rotatably connected.Wheel Hole is opened up to be fixedly connected with brake 36 on seat 33.

Brake 36 includes braking driving unit (not shown) and at least two drag friction part (not shown), braking driving Unit is fixed on wheel mount 33, and drag friction part is fixedly connected with braking driving unit, each in the both sides of brake disc 37 Respectively a setting at least drag friction part, the hydraulic wheel unit can push drag friction part close to each other and be made with mobile clamp for side Moving plate 37 prevents wheel 38 from rotating.Brake 36 is preferably disk brake.Disc-like brake structure is simple, good braking effect, And it is relatively low to generate heat.It is a kind of embodiment of disk brake in the present embodiment, disk brake is in the prior art Brake, the utility model is no longer further described its concrete structure.

Multiple heat emission hole (not shown) are opened up in brake disc 37.Preferably, heat emission hole is with the eccentric axial pair of brake disc 37 Claim.Preferably, heat emission hole is through-hole.

Driving motor (not shown) is provided in wheel 38, driving trolley 1 moves when driving motor works.Wheel 38 includes Tire.Preferably, tire exempts from inflation air tyre for what rubber made, and earth-grasping force is good, and durability is more preferable.Preferably, tire Surface sets decorative pattern, and tire earth-grasping force is more preferable.

As a kind of deformation, wheel includes wheel and shaft, and wheel is fixedly connected in shaft and passes through shaft and wheel Seat is rotatably connected, and the wheel further comprises the second brake assemblies 39, and the second brake assemblies 39 are fixed on wheel mount, Preferably electromagnetic brake, when electromagnetic brake acts, at least part of electromagnetic brake locks the shaft to prevent to take turns Son rotation.In this way, vehicle wheel component can realize the parking on level road or slope.

1 structure of trolley of the utility model is suitable for AGV (Automated Guided Vehicle, automatic guided vehicle), Namely AGV trolleies.For AGV trolleies to displacement distance, damping performance is more demanding, and 1 structure of trolley of the utility model is more perfect, prevents Shock stability, turning efficiency are more preferable.It is appreciated that the revealed technical solution of the utility model is also applicable in other for moving Or on the trolley of transport, such as cruiser, transfer car(buggy), electric vehicle, logistic car.

It is appreciated that and two is connected with each other and can surrounded between the rotary shaft connection i.e. two elements described in the utility model The tie point of person relatively rotates.The concrete structure connected such as 191 one end of damper with the rotary shaft of the first vehicle bridge 13 is one Axis is also cross 191 one end of damper and the first vehicle bridge 13, in this way, the axis is both described tie point, damper 191 can be with It is rotated using the axis as axle center relative to the first vehicle bridge 13.Rotary shaft structure is not especially limited, and can also be ball-joint Structure or other can realize the structure of relative rotation.

When in use, trolley 1 needs to move, and the driving motor work of wheel 30, trolley 1 moves；Trolley 1 is in rough road When face is advanced, the whole relative frame 11 of vehicle bridge 12 rotates, and one end relative frame 11 of vehicle bridge 12 moves back and forth, and kinetic energy is eliminated In the acting of damper 19；And limiting device 25 and limiting plate 27 limit vehicle bridge 12 and swing, and ensure that trolley 1 is run flat Stability, in 1 handling goods of trolley, fixing device 21 fixes fixed plate 23, is integral vehicle bridge 12 and vehicle frame 11, vehicle bridge 12 and vehicle frame 11 be relatively fixed, trolley 1 will not shake, and handling goods is safer.

Compared with prior art, the trolley of the utility model includes vehicle frame, vehicle bridge, damper and multiple wheels, the vehicle Bridge includes the first end and the second end that are oppositely arranged, and the vehicle bridge rotatably connects close to the position of first end and vehicle frame It connects, for the vehicle bridge close to the position of the second end by damper and vehicle frame elastic connection, the wheel is connected to vehicle bridge First end and the second end, the trolley further includes fixed mechanism, and it is solid that the fixed mechanism includes be separately set first Determine device and the second fixing device, first fixing device is fixedly connected with the second fixing device one of both with vehicle frame, separately One is fixedly connected with vehicle bridge, and first fixing device and the second fixing device can be fixed together, and limitation vehicle frame is with respect to vehicle Bridge is moved along vertical level direction, and the energy of trolley vibrations is consumed in the acting of vehicle bridge and vehicle frame relative motion, vehicle bridge It is rotatably connected with the other end of vehicle frame, the variation of the distance between the first vehicle bridge and vehicle frame is smaller, makes trolley shockproof, whole There are vibrations slight, shockproof properties are excellent, and the shockproof effect than the prior art greatly improves, and road surface adaptability further improves, First fixing device and the second fixing device can be fixed together, even if vehicle bridge and vehicle frame become an entirety, on trolley During handling goods, vehicle bridge and vehicle frame are relatively fixed, and trolley will not shake, and handling goods is safer.

First fixing device of the utility model includes driving unit and at least two clamping elements, and the clamping element and driving are single Member is fixedly connected, and per side, respectively a setting at least clamping element, the driving unit can push two in the both sides of the fixed plate Clamping element is close to each other with the mobile plate that is fixedly clamped, and the first fixture structure is simple, manufactures at low cost, fixation.

The trolley of the utility model further includes position-limit mechanism, and the position-limit mechanism includes the first limiting device being separately set With the second limiting device, first limiting device and the second limiting device one of both are fixedly connected with vehicle frame, another one and First vehicle bridge is fixedly connected, and second limiting device is at least partially housed in the first limiting device, and limitation vehicle frame is with respect to the One vehicle bridge along the horizontal plane move, and the first limiting device and the second limiting device prevent the first vehicle bridge from swinging, and make small by direction Garage will not be deformed, the performance of trolley further improves easily into more stable.

First limiting device of the utility model further includes multiple rotating rollers, and the rotating roller forms two rows of and connecting plate can It is rotatablely connected, the gap of vertical level is formed between the two rows rotating rollers, between the first limiting device and limiting plate For pivoting friction, the service life of limiting device and limiting plate is improved, a large amount of heat will not be generated between the rwo.

The gap of insertion in the width direction of the limiting plate of the utility model, the width of the limiting plate is from close to road surface One end be gradually reduced to far from the one end on road surface, the shape of limiting plate is rotatably connected resigning for vehicle bridge relative frame, structure Rationally.

The fixed plate of the utility model is fixed on by connecting plate on vehicle frame or vehicle bridge, saves trolley space, reduces trolley Volume reduces trolley cost.

The trolley of the utility model further includes controller, and the damper includes damper, and controller is connected to damper, The controller controls the damping change of damper according to pavement behavior, and trolley can adapt to different road surfaces, be attained by very Good damping effect increases the adaptability of trolley.

The vehicle bridge of the utility model is in " several " font, rational in infrastructure, reduces trolley center, and trolley travelling is more steady, and the 4th A recessing groove is opened up on plate body, the recessing groove is opened up to third plate body from end face of the 4th plate body far from third plate body one end and leaned on All over one end of body, the shock absorber section is arranged in recessing groove and is rotatably connected with the bottom of recessing groove nearly third, steps down Slot opens up the weight for alleviating vehicle bridge, and reduces the height of trolley, reduces the center of trolley, reduces the volume of trolley, Reduce the cost of trolley.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Any modification made within the principle of utility model, equivalent replacement and improvement etc. should all include the scope of protection of the utility model Within.

Claims (10)

1. a kind of trolley, it is characterised in that：The trolley includes vehicle frame, vehicle bridge, damper and multiple wheels, and the vehicle bridge includes The first end and the second end being oppositely arranged, the vehicle bridge is rotatably connected close to the position of first end and vehicle frame, described For vehicle bridge close to the position of the second end by damper and vehicle frame elastic connection, the wheel is connected to the first end of vehicle bridge Portion and the second end, the trolley further include fixed mechanism, the fixed mechanism include the first fixing device being separately set and Second fixing device, first fixing device and the second fixing device one of both are fixedly connected with vehicle frame, another one and vehicle Bridge is fixedly connected, and first fixing device and the second fixing device can be fixed together, and is at least limited vehicle frame and is existed with respect to vehicle bridge Movement on vertical level direction.

2. trolley as described in claim 1, it is characterised in that：Second fixing device is a fixed plate, and described first is solid Device is determined for a clamping device, and clamping device clamps fixed plate, and limitation vehicle frame is moved relative to vehicle bridge along vertical level direction.

3. trolley as claimed in claim 2, it is characterised in that：First fixing device includes driving unit and at least two folders Tight part, the clamping element are fixedly connected with driving unit, and per side, respectively setting at least one clamps in the both sides of the fixed plate Part, the driving unit can push two clamping elements close to each other with the mobile plate that is fixedly clamped.

4. trolley as claimed in claim 2, it is characterised in that：Trolley further includes position-limit mechanism, and the position-limit mechanism includes dividing The first limiting device and the second limiting device of body setting, first limiting device and the second limiting device one of both and vehicle Frame is fixedly connected, and another one is fixedly connected with the first vehicle bridge, and second limiting device is at least partially housed in the first limiting dress In putting, limitation vehicle frame relative to the first vehicle bridge, move along the horizontal plane by direction.

5. trolley as claimed in claim 4, it is characterised in that：First limiting device includes the gap of vertical level, Second limiting device is a limiting plate, and the limiting plate is partially received in the gap.

6. trolley as claimed in claim 5, it is characterised in that：First limiting device further includes connecting plate and multiple rotations Roller, the rotating roller form two rows of and connecting plate and are rotatably connected, and the institute of vertical level is formed between the two rows rotating roller State gap.

7. trolley as claimed in claim 5, it is characterised in that：The gap of insertion in the width direction of the limiting plate, institute The one end of the width of limiting plate from close to the one end on road surface to far from road surface is stated to be gradually reduced.

8. trolley as claimed in claim 5, it is characterised in that：The fixed plate is fixed on vehicle frame or vehicle bridge by connecting plate On.

9. trolley as described in claim 1, it is characterised in that：The trolley further includes controller and sensor, the damping Device includes damper, and damper and sensor are all electrically connected with controller, the road surface that the controller is detected according to sensor Situation controls the damping change of damper.

10. trolley as described in claim 1, it is characterised in that：The vehicle bridge includes the first plate body, the second plate body, third plate Body, the 4th plate body and the 5th plate body, first plate body, the second plate body, third plate body, the 4th plate body and the 5th plate body are first successively Tail connection is in " several " font, and end where first plate body is first end, and end where the 5th plate body is the second end, A recessing groove is opened up on 4th plate body, the recessing groove is opened up from end face of the 4th plate body far from third plate body one end to Close to one end of third plate body, the shock absorber section is arranged in recessing groove and rotatably connects with the bottom of recessing groove four plate bodys It connects.