CN213008446U

CN213008446U - Four-crawler-wheel walking chassis

Info

Publication number: CN213008446U
Application number: CN202020864515.7U
Authority: CN
Inventors: 朱锋文; 李永刚; 陈洪浪; 廖胜利; 吴宗群; 夏振
Original assignee: Chenzhou Co Ltd Of Hunan Tobacco Co ltd; Hunan Tianye Modern Intelligent Equipment Co ltd
Current assignee: Chenzhou Co Ltd Of Hunan Tobacco Co ltd; Hunan Tianye Modern Intelligent Equipment Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-04-20
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a four crawler wheel walking chassis, including the chassis underframe, install four crawler wheel walking wheels on the chassis underframe and install the drive arrangement who is used for driving each crawler wheel walking wheel on the chassis underframe, the chassis underframe includes two side case roof beams that have the inner chamber and connects the tie-beam between two case roof beams, installs two crawler wheel walking on every side case roof beam, installs variable speed and drive mechanism in the inner chamber of each side case roof beam, and the crawler wheel walking wheel on each side case roof beam links to each other with drive arrangement through the variable speed and the drive mechanism that are arranged in the side case roof beam inner chamber. The four-crawler-wheel walking chassis has the advantages of simple and compact structure, low cost, convenience in assembly and the like.

Description

Four-crawler-wheel walking chassis

Technical Field

The utility model relates to a walking chassis technical field, concretely relates to four athey wheel walking chassis.

Background

In the existing agricultural crawler wheel type walking chassis, each crawler wheel mainly comprises an annular crawler, a driving wheel, a tension wheel and a plurality of bottom supporting wheels, the annular crawler is wound and arranged on the driving wheel, the tension wheel and the plurality of bottom supporting wheels, the driving wheel is arranged on a chassis frame of the walking chassis through an installation seat, the tension wheel and the plurality of bottom supporting wheels are arranged on the same support, the support is arranged on the chassis frame of the walking chassis through a fastener, and the installation seat and the support are also respectively and independently arranged on the chassis frame. This kind of mounting structure and mode lead to the tie point on the chassis underframe many, need set up more fastener mounting hole on the chassis underframe, and the structural strength to the chassis underframe influences greatly, has also increased the degree of difficulty of preparation and assembly. Meanwhile, the mounting seat and the support seat need to be respectively disassembled and assembled when the crawler wheel is assembled and disassembled, the assembling and connecting relation among the annular crawler belt, the driving wheel, the bottom supporting wheel and the tensioning wheel needs to be considered in the disassembling and assembling process, the operation is complex, the disassembling and assembling efficiency is low, the operation space for disassembling and assembling the support seat is small due to the limitation of the chassis frame and the structure of the crawler wheel, and the disassembling and assembling are difficult.

In addition, in the existing crawler wheel type walking chassis, independent gearboxes are arranged on chassis frames, power is transmitted to front and rear axles through a plurality of transmission shafts and universal connectors after passing through the gearboxes, and then driving wheels of crawler wheels arranged on the front and rear axles are driven, so that the defects of complex structure, large occupied space and high cost exist. And because the athey wheel with same one side is located on two axles in front and back, the gearbox passes through transmission shaft and universal joint and transmits power to two axles in front and back, difficult assurance all athey wheel's synchronism.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art existence, provide a four athey wheel walking chassis of simple structure compactness, with low costs, the assembly of being convenient for.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a four crawler wheel walking chassis, includes the chassis underframe, installs four crawler traveling wheels on the chassis underframe and installs the drive arrangement who is used for driving each crawler traveling wheel on the chassis underframe, the chassis underframe includes two side case roof beams that have the inner chamber and connects the tie-beam between two case roof beams, installs two crawler traveling wheels of independently installing on every side case roof beam, installs variable speed and drive mechanism in the inner chamber of each side case roof beam, and the crawler traveling wheel on each side case roof beam through be located the variable speed and drive mechanism in the side case roof beam inner chamber with drive arrangement links to each other.

As a further improvement of the above technical solution:

the driving device comprises two rotary driving parts, a gearbox is installed on each side box girder, the driving ends of the two rotary driving parts are respectively connected with the input ends of the gearboxes on the two side box girders, and the two crawler traveling wheels on each side box girder are connected with the output end of the gearbox on the side box girder through the speed change and transmission mechanism.

The speed changing and transmission mechanism comprises an input gear and two output gears which are rotatably arranged in the inner cavity of the side box girder, the rotating shaft of the input gear is connected with the output end of the gearbox, each output gear is connected with the input gear through a plurality of transmission gears which are meshed in sequence, and the rotating shafts of the two output gears are respectively connected with the driving wheels of the two crawler traveling wheels correspondingly.

The crawler traveling wheel comprises an annular crawler, a driving wheel, a tensioning wheel and a plurality of bottom supporting wheels, the annular crawler is arranged on the driving wheel, the tensioning wheel and the bottom supporting wheels in a winding mode, the driving wheel is rotatably arranged on an installation seat, the installation seat is detachably arranged on a chassis frame through a fastening piece, the tensioning wheel and the bottom supporting wheels are arranged on a support, and the support is connected and arranged on the installation seat.

The support is hinged to the mounting seat, and the hinge axis of the support and the mounting seat is parallel to the rotation axis of the driving wheel.

The mounting seat is provided with a connecting arm which extends downwards along the radial direction of the driving wheel, the support is provided with a through hole which is communicated up and down, and the connecting arm is inserted into the through hole and is hinged with the support through a hinged shaft.

And limiting bulges used for abutting against the support to limit the range of the rotation angle of the support relative to the connecting arm are arranged on two sides of the connecting arm.

The tensioning device comprises a support, a tensioning wheel, a sliding seat, a tensioning adjusting assembly and a clamping device, wherein the support is provided with the sliding seat in a sliding mode, the tensioning wheel is rotatably arranged on the sliding seat, and the tensioning adjusting assembly is arranged between the support and the sliding seat and used for forcing the sliding seat to slide so that the tensioning wheel can tension the annular track.

The tensioning adjusting assembly comprises more than one adjusting screw, the adjusting screw is connected to the support in a threaded fit mode, and the sliding seat is connected with the adjusting screw.

And each sliding seat is provided with a positioning counter bore corresponding to each adjusting screw, and one end of each adjusting screw is inserted into the corresponding positioning counter bore.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an independent the installing on the chassis underframe of each crawler wheel walking chassis, need not set up the front axle, rear axle and differential steering device, simple structure is compact, and is with low costs, installation and maintenance convenient advantage, and simultaneously, the chassis underframe is equipped with the side case roof beam of taking the inner chamber, it carries out driven variable speed and the integrated setting of drive mechanism in the inner chamber of side case roof beam with drive arrangement to connect crawler wheel walking, can further improve simple structure compactness, and the cost is reduced, reduce the chassis underframe space that occupies, the installation of other constitutional components on the chassis underframe of being convenient for is arranged.

Drawings

Fig. 1 is a front view structure schematic diagram of a four-crawler-wheel walking chassis.

Fig. 2 is a schematic bottom view of the four-track-wheel walking chassis.

Fig. 3 is a front view of the transmission mechanism.

Fig. 4 is a schematic perspective view of a crawler traveling wheel.

Fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Fig. 6 is a front view structural schematic diagram of the crawler belt.

Illustration of the drawings:

1. a chassis frame; 11. a box girder; 12. a connecting beam; 2. a crawler traveling wheel; 21. an endless track; 22. a drive wheel; 23. a tension wheel; 24. a bottom support wheel; 3. a mounting seat; 31. a connecting arm; 311. a limiting bulge; 4. a support; 5. a slide base; 6. adjusting the screw rod; 101. an input gear; 102. an output gear; 103. a transmission gear; 201. a rotary drive member; 202. a gearbox.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1 to 3, the four-track-wheel walking chassis of the present embodiment includes a chassis frame 1, four track-walking wheels 2 mounted on the chassis frame 1, and a driving device mounted on the chassis frame 1 for driving each track-walking wheel 2, the chassis frame 1 includes two side box beams 11 having inner cavities and a connecting beam 12 connected between the two box beams 11, two track-walking wheels 2 mounted independently are mounted on each side box beam 11, a speed change and transmission mechanism is mounted in the inner cavity of each side box beam 11, and the track-walking wheels 2 on each side box beam 11 are connected to the driving device through the speed change and transmission mechanism located in the inner cavity of the side box beam 11. Each crawler traveling wheel 2 of this four-crawler-wheel walking chassis is independent installs on chassis underframe 1, need not set up the front axle, rear axle and differential steering device, simple structure is compact, and is with low costs, installation and convenient advantage of maintaining, and simultaneously, chassis underframe 1 is equipped with side case roof beam 11 of taking the inner chamber, will connect crawler traveling wheel 2 and drive arrangement and carry out driven variable speed and the integrated setting of drive mechanism in the inner chamber of side case roof beam 11, can further improve the simple structure compactness, and the cost is reduced, reduce chassis underframe 1 space that occupies, the installation of other structural component on the chassis underframe 1 of being convenient for is arranged.

In this embodiment, the driving device includes two rotary driving members 201, each side box girder 11 is provided with a gearbox 202, the driving ends of the two rotary driving members 201 are respectively connected to the input ends of the gearboxes 202 on the two side box girders 11, and the two crawler traveling wheels 2 on each side box girder 11 are connected to the output end of the gearbox 202 on the side box girder 11 through a speed changing and driving mechanism. The torque output by the rotary driving piece 201 is transmitted to the speed changing and transmission mechanism through the gearbox 202, and then transmitted to the two crawler belt traveling wheels 2 on the side box girder 11 by the speed changing and transmission mechanism, so that the crawler belt traveling wheels 2 are driven to rotate, the synchronism is good, and the steering performance of the four-crawler-wheel traveling chassis can be improved.

In this embodiment, the speed changing and transmission mechanism includes an input gear 101 and two output gears 102 rotatably mounted in the inner cavity of the side box beam 11, the rotating shaft of the input gear 101 is connected to the output end of the gearbox 202, each output gear 102 is connected to the input gear 101 through a plurality of transmission gears 103 engaged in sequence, and the rotating shafts of the two output gears 102 are correspondingly connected to the driving wheels 22 of the two crawler traveling wheels 2. When the rotary driving member 201 drives the input gear 101 to rotate through the gearbox 202, the two output gears 102 can be driven to rotate through the transmission gear 103, and then the driving wheels 22 of the two tracked road wheels 2 are driven to rotate synchronously. The speed change and transmission mechanism has the advantages of low cost, easy assembly and good working stability.

In this embodiment, the gearbox 202 and the crawler belt 2 are both directly mounted on the two side box beams 11, so that the output end of the gearbox 202 is conveniently connected with the input gear 101, and the output gear 102 is connected with the driving wheel 22 of the crawler belt 2.

In this embodiment, as shown in fig. 4 to 6, the tracked wheels 2 include an endless track 21, a driving wheel 22, a tension wheel 23, and a plurality of bottom support wheels 24, the endless track 21 is wound around and installed on the driving wheel 22, the tension wheel 23, and the plurality of bottom support wheels 24, the driving wheel 22 is rotatably installed on an installation base 3, the installation base 3 is detachably installed on the chassis frame 1 by fasteners, the fasteners adopt bolts, the tension wheel 23 and the plurality of bottom support wheels 24 are installed on a support 4, and the support 4 is connected and installed on the installation base 3. This crawler belt wheel 2's drive wheel 22, take-up pulley 23 and a plurality of bottom sprag wheel 24 are all installed on

mount pad

3, 3 integral erection of rethread mount pad is on chassis underframe 1, only need dismouting mount pad 3 can carry out whole dismouting to crawler belt wheel 2, its dismouting is simple and easy, the dismouting is efficient, and only need set up the mounting hole of the fastener of connecting mount pad 3 and chassis underframe 1 on chassis underframe 1, little to chassis underframe 1 structural strength's influence, drive wheel 22 simultaneously, take-up pulley 23 and a plurality of bottom sprag wheel 24 are all installed on mount pad 3, it is simple and easy more during the assembly that also makes crawler belt wheel 2.

In this embodiment, the support 4 is hinged on the mounting seat 3, and the hinge axis of the support 4 and the mounting seat 3 is parallel to the rotation axis of the driving wheel 22. The support 4 can swing around the hinge axis thereof, namely, the tension wheel 23 and the plurality of bottom supporting wheels 24 which are arranged on the support 4 can swing relative to the mounting seat 3, so that the walking performance and the adaptability of the crawler belt walking wheel 2 are better.

In the present embodiment, the mounting base 3 has a connecting arm 31 extending downward in the radial direction of the driving wheel 22, the support 4 is provided with a through hole penetrating up and down, and the connecting arm 31 is inserted into the through hole and is hinged to the support 4 by a hinge shaft. The connection stability of this kind of connection structure is good, and after the articulated shaft of connecting arm 31 and support 4 is dismantled, support 4 can move along connecting arm 31 under the mutual spacing of through-hole and connecting arm 31, and then the loading and unloading of the annular track 21 of being convenient for.

In this embodiment, the connecting arm 31 is provided with limiting protrusions 311 on both sides thereof for abutting against the seat 4 to limit the range of the rotation angle of the seat 4 relative to the connecting arm 31. The rotation angle range of the support 4 relative to the connecting arm 31 is limited by the limiting protrusion 311, so that the support 4 is in the preset rotation angle range, and the stability and reliability of the work are ensured. The angle limiting structure has the advantages of simple structure, low cost and easy manufacture.

In this embodiment, a sliding seat 5 is slidably installed on the support 4, the tension wheel 23 is rotatably installed on the sliding seat 5, and a tension adjusting assembly for forcing the sliding seat 5 to slide so that the tension wheel 23 tensions the endless track 21 is disposed between the support 4 and the sliding seat 5. The adjustment of the tensioning adjustment assembly forces the slide 5 to slide back and forth, which adjusts the tension of the tensioner 23 tensioning the endless track 21 outwards. Structure and mode are adjusted in tensioning of this slidingtype, and not only take-up pulley 23's installation steadiness is good, and the tensioning is effectual, and convenient preparation and assembly, compact structure nature is good.

In this embodiment, the tensioning adjustment assembly includes more than one adjusting screw 6, the adjusting screw 6 is connected to the support 4 in a threaded fit manner, and the sliding seat 5 is connected to the adjusting screw 6. The adjustment screw 6 is rotated to adjust its position on the support 4, thereby sliding the carriage 5. The tensioning adjusting assembly is simple in structure, low in cost and easy to adjust. Preferably, the tension adjustment assembly is provided with two adjustment screws 6.

In this embodiment, the slide 5 is provided with a positioning counter bore corresponding to each adjusting screw 6, and one end of each adjusting screw 6 is inserted into the corresponding positioning counter bore. The adjusting screw 6 pushes the sliding seat 5 to slide in a pushing manner so as to enable the tensioning wheel 23 to tension the annular track 21. Adjusting screw 6 and location counter bore adopt the grafting cooperation mode, and the counter bore of location fixes a position adjusting screw 6 on the one hand, can guarantee that adjusting screw 6 and slide 5 contact stress point are stable, and on the other hand makes assembly and dismouting simpler and easier.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention shall be considered as the protection scope of the present invention.

Claims

1. The utility model provides a four crawler wheel walking chassis, includes chassis underframe (1), installs four crawler wheel (2) on chassis underframe (1) and installs the drive arrangement who is used for driving each crawler wheel (2) on chassis underframe (1), its characterized in that: the chassis frame (1) comprises two side box beams (11) with inner cavities and a connecting beam (12) connected between the two side box beams (11), each side box beam (11) is provided with two crawler traveling wheels (2) independently installed, a speed change and transmission mechanism is installed in the inner cavity of each side box beam (11), and the crawler traveling wheels (2) on each side box beam (11) are connected with the driving device through the speed change and transmission mechanisms located in the inner cavities of the side box beams (11).

2. The four-wheeled walking chassis of claim 1, wherein: the driving device comprises two rotary driving pieces (201), a gearbox (202) is installed on each side box girder (11), the driving ends of the two rotary driving pieces (201) are respectively connected with the input ends of the gearboxes (202) on the two side box girders (11), and two crawler traveling wheels (2) on each side box girder (11) are connected with the output end of the gearbox (202) on the side box girder (11) through the speed changing and transmission mechanism.

3. The four-wheeled walking chassis of claim 2, wherein: the speed changing and transmission mechanism comprises an input gear (101) and two output gears (102) which are rotatably installed in an inner cavity of a side box girder (11), a rotating shaft of the input gear (101) is connected with an output end of a gearbox (202), each output gear (102) is connected with the input gear (101) through a plurality of transmission gears (103) which are meshed in sequence, and rotating shafts of the two output gears (102) are respectively connected with driving wheels (22) of two crawler traveling wheels (2) correspondingly.

4. The four-wheeled walking chassis of claim 1, 2 or 3, wherein: crawler belt (2) include annular track (21), drive wheel (22), take-up pulley (23) and a plurality of bottom sprag wheel (24), install on drive wheel (22), take-up pulley (23) and a plurality of bottom sprag wheel (24) around establishing annular track (21), drive wheel (22) are rotated and are installed on a mount pad (3), mount pad (3) are installed on chassis frame (1) with removable mode through the fastener, take-up pulley (23) and a plurality of bottom sprag wheel (24) are installed on a support (4), support (4) are connected install on mount pad (3).

5. The four-wheeled walking chassis of claim 4, wherein: the support (4) is hinged to the mounting seat (3), and the hinge axis of the support (4) and the mounting seat (3) is parallel to the rotation axis of the driving wheel (22).

6. The four-wheeled walking chassis of claim 5, wherein: the mounting seat (3) is provided with a connecting arm (31) which extends downwards along the radial direction of the driving wheel (22), the support (4) is provided with a through hole which is through up and down, and the connecting arm (31) is inserted into the through hole and is hinged with the support (4) through a hinged shaft.

7. The four-wheeled walking chassis of claim 6, wherein: and two sides of the connecting arm (31) are provided with limiting protrusions (311) which are used for abutting against the support (4) so as to limit the range of the rotation angle of the support (4) relative to the connecting arm (31).

8. The four-wheeled walking chassis of claim 4, wherein: a sliding seat (5) is arranged on the support (4) in a sliding mode, the tensioning wheel (23) is installed on the sliding seat (5) in a rotating mode, and a tensioning adjusting assembly for forcing the sliding seat (5) to slide to enable the tensioning wheel (23) to tension the annular track (21) is arranged between the support (4) and the sliding seat (5).

9. The four-wheeled walking chassis of claim 8, wherein: the tensioning adjusting assembly comprises more than one adjusting screw (6), the adjusting screw (6) is connected to the support (4) in a threaded fit mode, and the sliding seat (5) is connected with the adjusting screw (6).

10. The four-wheeled walking chassis of claim 9, wherein: and each sliding seat (5) is provided with a positioning counter bore corresponding to each adjusting screw (6), and one end of each adjusting screw (6) is inserted into the corresponding positioning counter bore.