Walking driving device of electric working machine

Abstract

The utility model relates to the field of agricultural machinery, in particular to a walking driving device of an electric operation machine, which comprises a rack, a driving motor and a reduction gearbox are arranged on the rack, and the driving motor is connected with an input shaft of the reduction gearbox through a transmission assembly. The input shaft of the reduction gearbox body is correspondingly connected with the output shafts of the two reduction gearbox bodies through the two steering assemblies, and the output shafts of the reduction gearbox bodies are connected with the walking wheels. The walking driving device of the electric working machine is compact and reasonable in structure, the rotating speed of the walking wheels can be conveniently adjusted, meanwhile, the walking reduction gearbox body has a steering function, the walking driving device can meet the application requirements of the small electric working machine on multiple scenes, and operability and adaptability are good.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a travel drive device of an electric working machine. Background Art

[0002] Small electric working machines for hilly and mountainous areas, such as the Chinese utility model patent application number CN201920296307.9, entitled Small Sugarcane Fertilizer and Soil Ridge Machine, and the Chinese utility model patent application number CN201821144493.6, entitled A Micro-tillage Machine. The travel drive device of the existing small electric working machine has a complex structural design, low reliability, and poor versatility. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a travel drive device of an electric working machine with compact structure and good versatility.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a travel drive device of an electric working machine, including a frame, on which a driving motor and a reduction gear box are provided, the driving motor is connected to the input shaft of the reduction gear box through a transmission assembly, the input shaft of the reduction gear box is respectively connected to the output shafts of two reduction gear boxes through two sets of steering assemblies, and the output shaft of the reduction gear box is connected to the travel wheel.

[0005] Furthermore, the steering assembly includes a shift fork, a steering shaft, a bearing and a steering spring. The steering shaft is installed on the frame through the bearing. An intermediate gear is provided in the middle of the steering shaft. The intermediate gear is connected to the input shaft of the reduction gear box. Movable steering gears are provided at both ends of the steering shaft. The shift fork is connected to the steering gear. The steering gear abuts against the bearing through the steering spring, and the steering gear is connected to the output shaft of the reduction gear box.

[0006] Furthermore, it also includes a fork shaft, one end of which is connected to the fork, and the other end of which is used to connect to the steering lever.

[0007] Furthermore, the steering gear is provided with a slot for engaging with the shift fork.

[0008] Furthermore, the transmission assembly includes a first transmission assembly and a second transmission assembly, and the drive motor is connected to the input shaft of the reduction gearbox through the first transmission assembly and the second transmission assembly in sequence.

[0009] Furthermore, the first transmission assembly is a belt reduction transmission assembly.

[0010] Furthermore, the second transmission assembly is a chain reduction transmission assembly.

[0011] Furthermore, the chain pitch of the chain reduction transmission assembly is 12.7.

[0012] Furthermore, the output shaft of the reduction gearbox is a hexagonal shaft.

[0013] Furthermore, the output shaft of the reduction gearbox includes two concentrically arranged half shafts.

[0014] The beneficial effects of the utility model are: a travel drive device for an electric working machine, when working, as the drive motor rotates, the power is transmitted to the reduction box through the transmission component, and the reduction box then drives the two walking wheels to move forward at the same time through the output shaft thereon, and the reverse walking function is realized by changing the direction of the walking motor, and the turning walking function to the side is realized by operating the steering control component on one side, and the pause walking function is realized by operating the steering control components on both sides at the same time. The travel drive device of the electric working machine provided by the utility model has a compact and reasonable structure, which is convenient for adjusting the speed of the walking wheels. At the same time, the travel reduction box is provided with a steering function, which can meet the multi-scenario application requirements of small electric working machines and has good operability and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the travel drive device of the electric working machine;

[0016] Figure 2 A top view of a travel drive device of an electric working machine;

[0017] Figure 3 is a schematic diagram of the structure of the steering assembly;

[0018] Description of labels:

[0019] 1. Frame; 2. Drive motor; 3. Speed ​​reducer; 31. Input shaft; 32. Output shaft; 4. Transmission assembly; 41. First transmission assembly; 42. Second transmission assembly; 5. Steering assembly; 51. Shift fork; 52. Steering shaft; 53. Bearing; 54. Steering spring; 55. Intermediate gear; 56. Steering gear; 561. Slot; 6. Travel wheel; 7. Shift fork shaft; DETAILED DESCRIPTION

[0020] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0021] The utility model provides a travel drive device for an electric working machine, which is applied to small electric working machines such as a micro-tillage machine or a soil-raising machine.

[0022] Please refer to Figures 1 to 3As shown, the utility model is a travel drive device of an electric working machine, including a frame 1, on which a driving motor 2 and a reduction box 3 are provided, the driving motor 2 is connected to the input shaft 31 of the reduction box 3 through a transmission assembly 4, the input shaft 31 of the reduction box 3 is respectively connected to two output shafts 32 of the reduction box 3 through two sets of steering assemblies 5, and the output shaft 32 of the reduction box 3 is connected to a travel wheel 6.

[0023] From the above description, it can be seen that the beneficial effects of the utility model are: a travel drive device for an electric working machine, when working, as the drive motor 2 rotates, the power is transmitted to the reduction box 3 through the transmission component 4, and the reduction box 3 then drives the two walking wheels 6 to move forward at the same time through the output shaft 32 thereon, and the reverse walking function is realized by changing the direction of the walking motor, and the turning walking function to the side is realized by operating the steering control component on one side, and the pause walking function is realized by operating the steering control components on both sides at the same time. The travel drive device of the electric working machine provided by the utility model has a compact and reasonable structure, which is convenient for adjusting the speed of the walking wheel 6. At the same time, the travel reduction box 3 is provided with a steering function, which can meet the multi-scenario application requirements of small electric working machines, and has good operability and adaptability.

[0024] In an optional embodiment, the steering assembly 5 includes a shift fork 51, a steering shaft 52, a bearing 53 and a steering spring 54. The steering shaft 52 is installed on the frame 1 through the bearing 53. An intermediate gear 55 is provided in the middle of the steering shaft 52. The intermediate gear 55 is connected to the input shaft 31 of the reduction gear box 3. Movable steering gears 56 are provided at both ends of the steering shaft 52. The shift fork 51 is connected to the steering gear 56. The steering gear 56 abuts against the bearing 53 through the steering spring 54. The steering gear 56 is connected to the output shaft 32 of the reduction gear box 3.

[0025] From the above description, it can be seen that the intermediate gear 55 with teeth at both ends of the shaft is arranged in the middle of the steering shaft 52, and the steering gear 56, the steering spring 54 and the bearing 53 are arranged in sequence on both sides of the axial outer end of the intermediate gear 55 on the steering shaft 52; the steering gear 56 is provided with a tooth at one end close to the intermediate gear 55 to mesh with the intermediate gear 55, and a gear tooth shape is provided at the other end, and a groove is provided in the axial middle part; the two axial outer ends of the steering spring 54 are respectively close to the steering gear 56 and the bearing 53.

[0026] In an optional embodiment, a fork shaft 7 is further included, one end of the fork shaft 7 is connected to the fork 51, and the other end of the fork shaft 7 is used to connect to the steering lever.

[0027] From the above description, it can be seen that one end of the fork 51 located inside the travel reduction housing 3 is connected to the fork shaft 7, and the other end is inserted into the steering gear 56. The end of the fork shaft 7 outside the travel reduction housing 3 is provided with a connection hole for connecting with the matching steering control member to realize power transmission. When working, the fork shaft 7 is moved outward by external force, and the fork 51 pushes the steering gear 56 to move outward and separate from the intermediate gear 55, cutting off the power transmission, and the travel wheel 6 on the corresponding side does not rotate to realize the turning function; when the external force is cut off, the steering gear 56 re-engages with the intermediate gear 55 under the thrust of the steering spring 54 to restore power transmission.

[0028] In an optional embodiment, the steering gear 56 is provided with a slot 561 for engaging with the shift fork 51 .

[0029] In an optional embodiment, the transmission assembly 4 includes a first transmission assembly 41 and a first transmission assembly 42 , and the drive motor 2 is connected to the input shaft 31 of the reduction gearbox 3 via the first transmission assembly 41 and the first transmission assembly 42 in sequence.

[0030] It can be seen from the above description that as the travel motor rotates, the power is transmitted to the travel reduction box 3 through the first transmission assembly 41 and the second transmission assembly 42 in sequence.

[0031] In an optional embodiment, the first transmission assembly 41 is a belt reduction transmission assembly 4 .

[0032] In an optional embodiment, the first transmission assembly 42 is a chain reduction transmission assembly 4 .

[0033] In an optional embodiment, the chain pitch of the chain reduction transmission assembly 4 is 12.7.

[0034] In an optional embodiment, the output shaft 32 of the reduction gearbox 3 is a hexagonal shaft.

[0035] From the above description, it can be seen that the hexagonal shaft is designed to be easily connected to the existing working machine running wheel 6 and has good versatility.

[0036] In an optional embodiment, the output shaft 32 of the reduction gearbox 3 includes two concentrically arranged half shafts.

[0037] It can be seen from the above description that the two concentric half-shafts can be controlled to rotate simultaneously, not rotate at all, or rotate one of them through the steering control assembly.

[0038] Please refer to Figures 1 to 3As shown, the first embodiment of the utility model is: a travel drive device of an electric working machine, including a frame 1, on which a driving motor 2 and a reduction box 3 are provided, the driving motor 2 and the reduction box 3 are arranged up and down, the driving motor 2 is connected to the input shaft 31 of the reduction box 3 through a transmission assembly 4, the input shaft 31 of the reduction box 3 is respectively connected to two output shafts 32 of the reduction box 3 through two sets of steering assemblies 5, and the output shaft 32 of the reduction box 3 is connected to the travel wheel 6.

[0039] The steering assembly 5 includes a shift fork 51, a steering shaft 52, a bearing 53 and a steering spring 54. The steering shaft 52 is mounted on the frame 1 through the bearing 53. An intermediate gear 55 is provided in the middle of the steering shaft 52. The intermediate gear 55 is connected to the input shaft 31 of the reduction box 3. Both ends of the steering shaft 52 are provided with movable steering gears 56. The shift fork 51 is connected to the steering gear 56. The steering gear 56 abuts against the bearing 53 through the steering spring 54. The steering gear 56 is connected to the output shaft 32 of the reduction box 3. It also includes a shift fork shaft 7. One end of the shift fork shaft 7 is connected to the shift fork 51, and the other end of the shift fork shaft 7 is used to connect the steering lever. The steering gear 56 is provided with a card slot 561 that is engaged with the shift fork 51. The transmission assembly 4 includes a first transmission assembly 41 and a first transmission assembly 42. The drive motor 2 is connected to the input shaft 31 of the reduction box 3 through the first transmission assembly 41 and the first transmission assembly 42 in sequence. The first transmission assembly 41 is a belt reduction transmission assembly 4. The first transmission assembly 42 is a chain reduction transmission assembly 4. The chain pitch of the chain reduction transmission assembly 4 is 12.7. The output shaft 32 of the reduction box body 3 is a hexagonal shaft. The output shaft 32 of the reduction box body 3 includes two concentrically arranged half shafts.

[0040] In summary, the travel drive device of the electric working machine of the utility model, when working, rotates with the driving motor, transmits power to the reduction box through the transmission component, and the reduction box then drives the two walking wheels to move forward at the same time through the output shaft thereon. Changing the direction of the walking motor realizes the backward walking function, and operating the steering control component on one side realizes the turning walking function to that side, and operating the steering control components on both sides at the same time realizes the pause walking function. The travel drive device of the electric working machine provided by the utility model has a compact and reasonable structure, which is convenient for adjusting the speed of the walking wheels. At the same time, the travel reduction box is provided with a steering function, which can meet the multi-scenario application requirements of small electric working machines and has good operability and adaptability.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A travel drive device for an electric working machine, characterized in that: The machine comprises a frame on which a driving motor and a reduction box are arranged. The driving motor is connected to the input shaft of the reduction box through a transmission assembly. The input shaft of the reduction box is respectively connected to the output shafts of two reduction boxes through two sets of steering assemblies. The output shaft of the reduction box is connected to the travel wheel.

2. The travel drive device of the electric working machine according to claim 1, characterized in that: The steering assembly includes a shift fork, a steering shaft, a bearing and a steering spring. The steering shaft is installed on the frame through the bearing. An intermediate gear is provided in the middle of the steering shaft, and the intermediate gear is connected to the input shaft of the reduction gear box. Both ends of the steering shaft are provided with movable steering gears. The shift fork is connected to the steering gear. The steering gear abuts against the bearing through the steering spring, and the steering gear is connected to the output shaft of the reduction gear box.

3. The travel drive device of the electric working machine according to claim 2, characterized in that: It also includes a shift fork shaft, one end of which is connected to the shift fork, and the other end of which is used to connect to a steering lever.

4. The travel drive device of the electric working machine according to claim 2, characterized in that: The steering gear is provided with a clamping groove which is clamped with the shift fork.

5. The travel drive device of an electric working machine according to claim 1, characterized in that: The transmission assembly comprises a first transmission assembly and a second transmission assembly, and the drive motor is connected to the input shaft of the reduction gearbox through the first transmission assembly and the second transmission assembly in sequence.

6. The travel drive device of the electric working machine according to claim 5, characterized in that: The first transmission assembly is a belt reduction transmission assembly.

7. The travel drive device of an electric working machine according to claim 5, characterized in that: The second transmission assembly is a chain reduction transmission assembly.

8. The travel drive device of the electric working machine according to claim 7, characterized in that: The chain pitch of the chain reduction transmission assembly is 12.

7.

9. The travel drive device of an electric working machine according to claim 1, characterized in that: The output shaft of the reduction gearbox is a hexagonal shaft.

10. The travel drive device of an electric working machine according to claim 1, characterized in that: The output shaft of the reduction gearbox body includes two concentrically arranged half shafts.

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