CN216423976U

CN216423976U - Land leveler front axle assembly and land leveler

Info

Publication number: CN216423976U
Application number: CN202122833955.3U
Authority: CN
Inventors: 吴自龙
Original assignee: Hunan Sanyi Huayuan Machinery Co
Current assignee: Hunan Sanyi Huayuan Machinery Co
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-03
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to the technical field of operating machinery, and provides a front axle assembly of a land leveler and the land leveler, wherein the front axle assembly of the land leveler comprises a bridge, two wheels, a driving device and an inclination joint; the driving device is arranged on at least one wheel and used for providing driving force for the wheel; the number of the inclination angle joints is set corresponding to the number of the wheels, one side of each inclination angle joint is movably connected with the bridge frame, and the other side of each inclination angle joint is movably connected with the driving device. The utility model discloses can make the leveler satisfy the operation requirement under the abominable operating mode, for example soft road surface such as desert, snowfield, the drive power of leveler is not enough, through front axle drive front wheel operation to effectively increase the traction force of leveler.

Description

Land leveler front axle assembly and land leveler

Technical Field

The utility model relates to an operation machinery technical field especially relates to a leveler front axle subassembly and leveler.

Background

A land leveler is an operating machine having high efficiency, high operating accuracy, and a wide range of applications, and is widely used for leveling operations in large-area fields such as highways, railways, airports, parking lots, and the like, as well as operations such as farmland soil preparation, embankment shaping, and forest road renovation.

The front axle assembly of the motor grader serves as an important component of the motor grader and has multiple functions of steering, inclining, swinging and the like.

When the existing land leveler is constructed under the working conditions of soft road surfaces such as desert, snowfield and the like, the phenomenon that wheels slip on the ground often occurs because the adhesion force of the wheels is not enough; when this occurs, the conventional motor grader drives the rear wheels to get rid of the slip trouble.

Under the condition of relatively good road conditions, the grader can get rid of the difficulty of skidding by driving the rear wheels; however, when the road conditions are not good, the grader cannot get rid of the slip predicament by driving the rear wheels, and the rear wheels can be sunk into the pits.

SUMMERY OF THE UTILITY MODEL

The utility model provides a leveler front axle subassembly and leveler for solve above-mentioned technical defect among the prior art, realize if the leveler rear wheel pit or skid, provide drive power for the leveler through the front axle subassembly in order to break away from the predicament.

In order to achieve the above object, a first aspect of the present invention provides a grader front axle assembly, including:

the crane comprises a bridge and two wheels positioned at two ends of the bridge;

a drive device mounted on at least one of the wheels for providing drive to the wheel;

the number of the inclination angle joints is corresponding to the number of the wheels, one side of each inclination angle joint is movably connected with the bridge frame, and the other side of each inclination angle joint is movably connected with the driving device.

According to the utility model provides a front axle assembly of grader, drive arrangement includes the speed reducer, and with motor, the motor that the speed reducer cooperation set up wherein one kind.

According to the front axle assembly of the land leveler, the speed reducer comprises a fixed part and a movable part;

the movable part and the fixed part rotate relatively, and the movable part is arranged on the inner side of the wheel; the motor or the motor is mounted inside the fixing portion.

According to the utility model provides a front axle assembly of a land leveler, the wheel comprises a wheel spoke plate and a tire;

the movable part with wheel radials fixed connection, just the movable part can be rotatory around its axis, so that the wheel is along with the movable part is rotatory.

According to the front axle assembly of the land leveler, the inclination angle joint is rotationally connected with the bridge frame through the first pin shaft;

the inclination angle joint is rotatably connected with the fixing part through a second pin shaft.

According to the front axle assembly of the land leveler, the front axle assembly further comprises a steering oil cylinder, a steering pull rod, an inclined oil cylinder and an inclined pull rod;

the steering oil cylinder and the steering pull rod are coaxially connected to the inclination angle joint;

one end of the tilt oil cylinder and one end of the tilt pull rod are coaxially connected to the tilt angle joint.

According to the front axle assembly of the land leveler, the front axle assembly of the land leveler further comprises a protective device;

the installation position of the protection device is any one of the following positions:

the speed reducer is positioned on one side close to the inclination joint;

on the steering tie rod and/or the tilt tie rod.

According to the front axle assembly of the land leveler, the protection device comprises a protection plate and a binding piece;

the protective plate is fixedly arranged on the speed reducer;

the binding pieces are arranged on the inclined pull rod along the arrangement route of the connecting pipe of the driving device.

According to the utility model provides a front axle assembly of grader, the inclination joint is equipped with wide opening, wide open-ended size with the motor or the volume of motor suits.

In order to achieve the above object, a second aspect of the present invention provides a motor grader, including any one of the above motor grader front axle assemblies.

The utility model provides a front axle assembly of land leveler, through configuration drive arrangement on the wheel at front axle assembly of land leveler, so that the land leveler satisfies the operation requirement under the abominable operating mode, the abominable operating mode is for example the desert, soft road surface such as snowfield, the drive power of land leveler is not enough, all wheels of land leveler all drive (six wheels drive simultaneously promptly), so that the traction force of whole land leveler promotes, drag out the pit with whole land leveler, the drive of whole wheel simultaneously can increase traction force, thereby avoid the wheel to skid.

Furthermore, the utility model provides a pair of leveler because of including foretell leveler front axle subassembly, consequently possesses foretell all advantages.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is one of the schematic structural views of a front axle assembly of a grader provided by the present disclosure;

fig. 2 is a second schematic structural view of a front axle assembly of a grader provided by the present invention;

FIG. 3 is one of the front views of the grader front axle assembly provided by the present disclosure;

fig. 4 is a second front view of the front axle assembly of the grader provided by the present invention;

FIG. 5 is a schematic view of a portion of a front axle assembly of a grader provided by the present disclosure;

fig. 6 is a schematic structural view of the front axle assembly of the grader in a turning state.

Reference numerals:

1. a bridge frame; 2. A tilt joint; 21. A wide opening;

3. a wheel; 31. A wheel web; 32. A tire;

4. a drive device; 41. A speed reducer; 411. A movable portion;

412. a fixed part; 42. A motor; 5. A first pin shaft;

6. a second pin shaft; 7. A steering cylinder; 8. A steering tie rod;

9. inclining the oil cylinder; 10. A tilt pull rod; 11. A guard;

111. a protection plate; 112. A binding piece; 12. And a frame.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "first", "second", "third" and "fourth" do not denote any sequence relationship, but are merely used for convenience of description. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.

Embodiments of the present invention will be described below with reference to fig. 1 to 6. It is to be understood that the following description is only exemplary of the present invention and is not intended to constitute any limitation on the present invention.

As shown in fig. 1 and 2, the utility model provides a front axle assembly of a land leveler, which comprises a bridge frame 1, an inclination joint 2, wheels 3 and a driving device 4, wherein two ends of the bridge frame 1 are respectively movably connected with one side of the inclination joint 2, so that the inclination joint 2 can realize deflection or inclination under the driving of external force; the drive means 4 is mounted in at least one wheel 3 so that the wheel 3 forms a drive wheel for providing traction to the grader; the driving device 4 is movably connected with the other side of the inclination joint 2, which is far away from the bridge frame 1, so that a certain angle can be generated between the inclination joint 2 and the driving device 4, and the steering of the land scraper is realized.

As an embodiment of the present invention, the front axle assembly of the land leveler provided in the present embodiment will be described in detail by taking the driving device 4 formed by the motor 42 and the speed reducer 41 in cooperation as an example.

As shown in fig. 1 and fig. 2, specifically, the front axle assembly of the grader is mounted on a frame 12 of a working machine (such as a grader), and includes a bridge frame 1, two tilt joints 2, wheels 3, and a driving device 4, where the two tilt joints 2 are respectively mounted at left and right ends of the bridge frame 1, and the two tilt joints 2 may be rotatably connected to the bridge frame 1 by a first pin 5, so that both the tilt joints 2 and the bridge frame 1 can rotate around the first pin 5.

The driving device 4 is installed in the wheel 3 and is movably connected with the tilt joint 2 through a second pin shaft 6, so that the driving device 4 and the tilt joint 2 can rotate through the second pin shaft 6. The drive device 4 may be installed in one wheel 3 or may be installed in both of the left and right wheels 3.

As shown in fig. 1 and 4, the driving device 4 includes a speed reducer 41 and a motor 42 cooperating with the speed reducer 41, and the motor 42 is controlled to rotate along the axis of the speed reducer 41, so as to roll the wheel sleeved outside the speed reducer 41.

Specifically, as shown in fig. 4 and 5, the speed reducer 41 includes two parts, namely a movable part 411 and a fixed part 412, the movable part 411 can rotate around the axis of the speed reducer 41, and the movable part 411 and the fixed part 412 can rotate relatively.

The reducer 41 can be a double-ring RV reducer, is a rotary vector reducer, is assembled by the transmission of a traditional cycloid pin gear and a planetary gear, and has the characteristics of compact volume, strong torsional rigidity, integrated angular bearing with larger thrust and cantilever type momentum, high reduction ratio, no increase of the size of the reducer and the like.

The double-ring RV reducer can be divided into three layers from the radial structure, namely a pinwheel layer, an RV gear layer and a mandrel layer, and each layer can rotate independently.

The pinwheel at the outermost layer of the pinwheel layer is actually an inner gear ring, the inner side of the pinwheel is provided with pinteeth, and the outer side of the pinwheel is provided with a flange and a mounting hole.

The RV gear layer is the core of the speed reducer and comprises an RV gear, an end cover, a flange, a crankshaft and the like, the RV gear, the end cover and an output flange are all of hollow structures, and a central inner hole is used for installing a mandrel.

Wherein, the dabber is installed in the cavity inner chamber of RV gear in the dabber layer, and its shape is relevant with the drive ratio, can make the gear shaft when the drive ratio is big, can make a spline fixed gear when the drive ratio is little, and the input is generally connected to the dabber.

As shown in fig. 5, the wheel 3 includes a wheel web 31 and a tire 32, wherein the tire 32 is assembled on the wheel web 31, and the wheel web 31 can be fixedly connected with a flange outside the movable portion 411 of the speed reducer 41 by a fastener (which may be a bolt and a nut).

The movable part 411 of the speed reducer 41 is installed inside the wheel 3, can drive the wheel, and rotates together with the wheel; the fixed part 412 of the speed reducer 41 is movably connected with the tilt joint 2, and the fixed part 412 cannot rotate along with the wheels, so that the whole front axle is in a stable state.

It can also be understood that the movable portion 411 of the speed reducer 41 is an independent double-ring RV speed reducer, the fixed portion 412 of the speed reducer 41 is a fixed connecting member coaxially disposed with the double-ring RV speed reducer, the fixed connecting member can be connected to a spindle of the double-ring RV speed reducer through a bearing transmission, and can keep a relative rotation state through a limiting groove and a limiting block disposed along a circumferential direction, so as to prevent the movable portion 411 and the fixed portion 412 from being disengaged from each other, so that when the movable portion 411 of the speed reducer 41 rotates around an axis thereof under the driving of the motor 42, the fixed portion 412 and the movable portion 411 of the speed reducer 41 generate a relative motion, and are always kept fixed without disengaging the movable portion 411; the structure of the fixed connecting piece is adjusted according to the use environment.

In this embodiment, when the motor 42 is disposed in cooperation with the speed reducer 41, the motor 42 (specifically, a hydraulic motor) is fixedly connected to the inside of the fixing portion 412 of the speed reducer 41, and the output shaft of the motor 42 penetrates through the fixing portion 412 of the speed reducer 41 and is in transmission connection with the spindle located at the inside of the movable portion 411 of the speed reducer 41. The motor 42 can be controlled by a hydraulic pump, the hydraulic pump can be a fixed displacement pump or a variable displacement pump, and the motor 42 works to drive the movable part 411 of the speed reducer 41 to rotate so as to drive the wheels 3 to rotate.

Adopt the technical scheme of the utility model, can get rid of poverty smoothly under following arbitrary condition:

in one case, if the rear wheels of the grader slip, which is equivalent to the rear wheels losing adhesion, are driven to get out of the way, the rear wheels may get stuck in the pit, which is worse.

At this time, if the driving force is distributed to the wheels with adhesive force, for example, the driving device 4 of the front wheel is started, the motor 42 is operated to drive the speed reducer 41 to rotate around the axis thereof, so that the front wheel of the front axle assembly and the speed reducer 41 rotate together to drive the rear wheel to be separated from the area without adhesive force, and the grader can quickly get rid of the trouble in extreme cases.

In another situation, if the rear wheel of the land leveler cannot escape from the pit, stones, bricks, plates and other objects are padded on the front side and the rear side of the front wheel to increase the friction force between the tire and the ground, and then the land leveler is driven to flush out of the pit; if the area of rear wheel card in the hole is very big, when exceeding two-thirds of whole wheel, start drive arrangement 4 of front wheel, make motor 42 work, drive speed reducer 41 and rotate around its axle center to make the front wheel of front axle subassembly rotate with speed reducer 41 together, pull out the rear wheel in the hole, avoid looking for trailer or rescue car under this kind of condition, delay the construction process, with the inconvenient problem of current leveler use under abominable operating mode of solution.

More specifically, in the present embodiment, the tilt joint 2 is rotatably connected to the fixing portion 412 of the speed reducer 41 by the second pin 6, so that the tilt joint 2 does not interfere with the fixing portion 412 of the speed reducer 41 when the tilt or steering function is implemented.

In this embodiment, the front axle assembly of the grader further includes a steering cylinder 7, a steering rod 8, a tilt cylinder 9 and a tilt rod 10, wherein a piston rod of the steering cylinder 7 is coaxially connected with an end of the steering rod 8, the steering cylinder 7 is used for controlling the front axle assembly to steer, and the steering rod 8 is used for maintaining the left and right wheels 3 to achieve synchronous steering.

The piston rod of the tilt cylinder 9 is coaxially connected with one end of a tilt rod 10, the tilt cylinder 9 is used for controlling the front axle assembly to tilt, the tilt rod 10 is used for maintaining the left and right wheels 3 to tilt synchronously, the structure is not improved, and the structure in the prior art can be adopted, and the detailed description is omitted.

In the present embodiment, as shown in fig. 3 and 4, the tilt joint 2 is provided with a wide opening 21, and the size of the wide opening 21 is adaptively adjusted according to the volume of the motor 42 so that the motor 42 can pass through the wide opening 21 and be mounted on the side of the fixing portion 412 of the speed reducer 41 close to the tilt joint 2.

Compared with the opening of the existing tilt joint 2, the wide opening 21 has a larger opening span, so that enough space is ensured for installing or maintaining the motor 42 in the wide opening 21, and meanwhile, the wide opening 21 can ensure that the tilt joint 2 does not interfere with the motor 42 during steering or tilting.

As shown in fig. 6, when the front axle assembly of the grader rotates by an angle of ± 45 ° under the action of the steering cylinder 7 and the steering rod 8, the tilt joint 2 correspondingly rotates by an angle of ± 45 ° around the second pin 6, so that the motor 42 is completely exposed from the position of the wide opening 21, thereby facilitating the disassembly and maintenance of the motor 42.

As another embodiment of the present invention, the front axle assembly of the land leveler provided in this embodiment can also work with the driving device 4 formed by the cooperation of the motor and the speed reducer 41.

When the reducer 41 is driven to rotate by the motor, the motor is installed and maintained in the same manner as the motor 42.

As another embodiment of the present invention, on the basis of the above embodiments, what is different from the above embodiments is that, in order to prevent the connecting pipe of the driving device 4 from moving so as to interfere the movement of the front axle assembly, or prevent the connecting pipe from being damaged by friction with the wheel 3, the bridge 1 is provided with the protection device 11, and the protection device 11 can be installed on the speed reducer 41 through a bolt, or can be installed on the pull rod through a bolt, or can be installed on the speed reducer 41 and the pull rod at the same time.

As shown in fig. 1, the protection device 11 includes a protection plate 111, and the protection plate 111 may be fixedly installed on the fixing portion 412 of the speed reducer 41 and disposed near the connecting pipe of the motor 42 or the electric machine to prevent the connecting pipe of the motor 42 or the electric machine from contacting the wheel 3 and wearing the connecting pipe during the movement of the wheel 3.

If the connecting pipe is positioned at one side of the speed reducer 41, a protective plate 111 is correspondingly arranged at one side of the speed reducer 41; if the connecting pipes are located on two sides of the speed reducer 41, the protection plates 111 are correspondingly arranged on two sides of the speed reducer 41, and the specific setting is determined according to the use condition.

The protection plate 111 may be a flat plate, the shape of which is not limited, and the corresponding selection may be performed according to the position of the speed reducer 41 after installation, so as to completely prevent the connection pipe from contacting the wheel 3, an installation lug may be preset on the fixing portion 412 of the speed reducer 41, and the protection plate 111 is fixedly connected with the installation lug through a bolt.

Further, the protection plate 111 can be further provided with a flange along the circumferential direction, so that a limiting part (not numbered in the figure) is formed, the connecting pipe is prevented from extending out of the area where the protection plate 111 is located through the limiting part, the moving area of the connecting pipe can be reasonably controlled, and more accurate positioning is formed for protection of the connecting pipe.

As shown in fig. 1, the protection device 11 further includes a binding member 112, and the binding member 112 is disposed along the arrangement route of the connecting pipe, and may be disposed on the pull rod, the speed reducer 41, or the protection plate 111. The binding 112 is used to secure the connecting tube and prevent the connecting tube from falling loose.

Specifically, the ligature 112 includes, but is not limited to, any one of a strap, a band, a ligature, and the like.

The tie-up strap is illustrated in any one of several forms, such as the tie-up 112 being a strap, one end of which is secured to the pull rod, as shown in fig. 1, and the other end of which is free, so that when the connection tube passes over the location of the strap, the tube can be secured to the pull rod via the free end; the connection tube may be a hose, protecting the tube inner parts, such as the electric wire or the supply tube, from the user.

In this embodiment, the speed reducer 41 is embedded inside the wheel 3, which is equivalent to a position occupying the hub, so that an additional installation space is not required, the structure is compact, and the occupied area is small. The mounting position of the speed reducer 41 and the mounting position of the hub can be set to be mutually corresponding structures, so that the speed reducer 41 can be used for driving the wheel 3 to move when the wheel 3 in the front axle assembly is used as a driving wheel; when the wheel 3 in the front axle assembly is used as a driven wheel, the speed reducer 41 is quickly replaced by a hub for use. Therefore, the conversion of the front wheels between the driving axle and the driven axle in the front axle assembly of the grader is realized. For example, under the condition that the construction working condition is gentle, in order to save cost, the wheel 3 in the front axle assembly can be converted into a driven wheel, that is, the speed reducer 41, the motor 42 and the motor are detached, and then the wheel hub is replaced.

The utility model discloses an installation and working process as follows:

when the land leveler is constructed under the working conditions of soft roads such as desert, snowfield and the like, because the road surface skids, the wheel adhesion is not enough, the rear wheel is sunk or skidded, and the trouble can not be got rid of, the land leveler is switched to the all-wheel drive mode, namely, four wheel drives behind the existing land leveler are changed into all wheel drives of the land leveler (namely, six wheels 3 are driven simultaneously), so that the traction force of the whole land leveler is improved, and the whole land leveler is dragged out of the sunk.

Specifically, when the front axle assembly is provided with the speed reducer 41 and the motor 42, the motor 42 is driven by the original hydraulic system of the grader to work, and the motor 42 drives the speed reducer 41 to rotate, so that the speed reducer 41 and the wheels 3 rotate together, and the wheels 3 (front wheels) in the front axle assembly are driven.

In the above driving process, since the connection pipe needs to be connected from the housing 12 to the motor 42, the connection route is long. On the connecting line, because the front axle subassembly has multiple actions such as slope, turns to, for preventing that the connecting pipe friction from damaging, set up protector 11, protection plate 111 and ligature area promptly, protection plate 111 is used for keeping apart connecting pipe and wheel 3, and the ligature area is used for the fixed connection pipe, prevents the connecting pipe drunkenness.

The utility model discloses an innovation point lies in: through dispose drive arrangement 4 on wheel 3 at the front axle subassembly of grader to make the grader satisfy the operation requirement under the abominable operating mode, the abominable operating mode is for example soft road surfaces such as desert, snowfield, and the drive power of grader is not enough, and all wheels of grader all drive (six wheels 3 drive simultaneously promptly) so that the traction force of whole grader promotes, drags out the pit with whole grader.

In addition, a guard 11 is provided on the bridge 1 for preventing play of the connecting pipes of the drive 4 to interfere with the front axle movement and to prevent friction damage of the connecting pipes. And an avoidance space of the driving device 4 is arranged on the dip angle joint 2, and the driving device 4 can be conveniently maintained by rotating a certain angle.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A grader front axle assembly, comprising:

2. The motor grader front axle assembly according to claim 1,

the driving device comprises a speed reducer and one of a motor and a motor which are matched with the speed reducer.

3. The grader front axle assembly according to claim 2, wherein the reducer comprises a fixed portion and a movable portion;

4. The grader front axle assembly according to claim 3, wherein the wheel comprises a wheel web and a tire;

5. The motor grader front axle assembly according to claim 3,

the inclination angle joint is rotationally connected with the bridge through a first pin shaft;

6. The grader front axle assembly according to any of claims 2 to 5, further comprising a steering cylinder and a steering linkage, and a tilt cylinder and a tilt linkage;

7. The motor grader front axle assembly according to claim 6, further comprising a guard;

the speed reducer is positioned on one side close to the inclination joint;

on the steering tie rod and/or the tilt tie rod.

8. The grader front axle assembly according to claim 7, wherein the guard includes a fender and a ligature;

the protective plate is fixedly arranged on the speed reducer;

9. The motor grader front axle assembly according to claim 2,

the tilt angle joint is provided with a wide opening, and the size of the wide opening is adapted to the volume of the motor or the motor.

10. A grader comprising a grader front axle assembly according to any one of claims 1 to 9.