Weeding machine rear driving wheel set device with adjustable wheel tread

Abstract

The utility model discloses a weeding machine rear driving wheel set device with an adjustable wheel tread, and relates to the technical field of weeding machines. The weeding machine rear driving wheel set device with the adjustable wheel tread comprises a cross beam, a right wheel leg and a left wheel leg. Brake components are assembled on the side faces of the right wheel leg and the left wheel leg, rear wheels are assembled on the outer sides of the right wheel leg and the left wheel leg, and installation assemblies are arranged between the right wheel leg and the cross beam and between the left wheel leg and the cross beam. According to the weeding machine rear driving wheel set device with the adjustable wheel track, after the height reaches 1000 cm, the wheel track is adjustable, a brake mechanism is arranged, a gearbox receives power of an engine, the power is transmitted to the left wheel leg and the right wheel leg through a half shaft, then the power is transmitted to a driving wheel through chains in the wheel legs, and the driving wheel drives the whole machine to move. Hydraulic brake devices are assembled at the joints of the wheel legs and the driving wheels and installed on the lower portion of the mechanism, the gravity center of the whole machine is lowered, and the problem of rollover in the hilly land operation process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of weed cutters, in particular to a rear driving wheel set device of a weed cutter with adjustable wheelbase. Background Art

[0002] At present, weeding is done by spraying herbicides in the agricultural production process. The herbicide spraying is highly efficient and saves labor costs. However, the pollution caused by herbicides is serious, causing widespread non-point source pollution, and even herbicides remain in agricultural products, endangering human health. In response to the above situation, a high-clearance riding weeder was developed, which uses mechanical weeding to carry out weeding operations. This method does not use herbicides, essentially solves the problem of herbicide residues, essentially improves the quality of agricultural products, and ensures the safety of agricultural products from the source.

[0003] However, in the prior art, it is difficult to pass freely when the crops grow to a height of 1000 cm, and there is a high possibility of damaging the crops. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a rear drive wheel assembly device for a lawn mower with an adjustable wheelbase, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical scheme: a rear drive wheel assembly device for a lawn mower with an adjustable wheelbase, comprising a crossbeam, a right wheel leg and a left wheel leg; the sides of the right wheel leg and the left wheel leg are equipped with brake components, the outer sides of the right wheel leg and the left wheel leg are equipped with rear wheels, and a mounting assembly is provided between the right wheel leg and the left wheel leg and the crossbeam.

[0005] Preferably, the mounting assembly may consist of one of a U-shaped clamp or a quick-release device and a fixing plate.

[0006] Preferably, four fixing plates are provided, and the four fixing plates are respectively located at the top of the right wheel leg and the left wheel leg and are in a fixed state.

[0007] Preferably, the quick-release device includes a pneumatic chamber and a torsion spring rod, one end of the pneumatic chamber is fixedly connected to the elastic airbag, the other end of the pneumatic chamber is slidably connected to a clamping rod, a clamping groove is provided on the side of the torsion spring rod, and the outer side of the torsion spring rod is fixedly connected to a mounting plate.

[0008] Preferably, the torsion spring rod is located at a side position of the fixing plate, and the torsion spring rod and the fixing plate are in a rotationally connected state.

[0009] Preferably, the clamping rod is located in the clamping slot, and the cross-sectional shape of the clamping rod is matched with the cross-sectional shape of the clamping slot.

[0010] The utility model provides a rear driving wheel assembly device for a lawn mower with adjustable wheelbase, which has the following beneficial effects:

[0011] (1) The rear drive wheel assembly of the adjustable wheelbase lawn mower has a height of 1000 cm, an adjustable wheelbase and a built-in brake mechanism. After the gearbox receives the engine power, it transmits the power to the left and right wheel legs through the half shaft, and then transmits the power to the drive wheel through the chain inside the wheel leg. The drive wheel drives the whole machine to move. A hydraulic brake device is installed at the connection between the wheel leg and the drive wheel. The brake device is installed at the bottom of the mechanism to lower the center of gravity of the whole machine and prevent the problem of rollover during operation on a hillside.

[0012] (2) After the U-shaped clamp is replaced with a quick-release device, the rear drive wheel assembly device of the lawn mower with adjustable wheelbase is used, and the crossbeam is moved toward the fixed plate. The air pressure chamber, the torsion spring rod, the elastic airbag, the clamping rod, the clamping groove and the mounting plate are used to restrict the crossbeam, making the device easier to install and improving the usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall appearance of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the U-shaped clamp structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional appearance structure of the utility model from another viewing angle;

[0016] Figure 4 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0017] In the figure:

[0018] 100, crossbeam; 200, mounting assembly; 300, right wheel leg; 400, brake component; 500, rear wheel; 600, left wheel leg; 700, fixing plate;

[0019] 210, U-shaped clamp; 220, quick-release device;

[0020] 221, air pressure chamber; 222, torsion spring rod; 223, elastic airbag; 224, clamping rod; 225, clamping slot; 226, mounting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 4A rear drive wheel assembly device of a lawn mower with adjustable wheelbase includes a crossbeam 100, a right wheel leg 300 and a left wheel leg 600; brake components 400 are installed on the sides of the right wheel leg 300 and the left wheel leg 600, rear wheels 500 are installed on the outer sides of the right wheel leg 300 and the left wheel leg 600, and an installation component 200 is arranged between the right wheel leg 300 and the left wheel leg 600 and the crossbeam 100.

[0024] The mounting assembly 200 may be composed of one of the U-shaped clamp 210 or the quick-release device 220 and a fixing plate 700. Four fixing plates 700 are provided. The four fixing plates 700 are respectively located at the top of the right wheel leg 300 and the left wheel leg 600 and are in a fixed state.

[0025] When the mounting assembly 200 uses a U-shaped clamp 210, the crossbeam 100 is connected to the frame of the high-ground clearance riding lawn mower to support the rear end of the vehicle. The left wheel leg 600 and the right wheel leg 300 are high-leg structures to achieve high-ground clearance for the whole machine. The chain transmission structure brake components 400 inside the wheel legs on both sides realize the connection between the left wheel leg 600 and the right wheel leg 300 and the rear wheels 500 on both sides, and the dead weight of the parts can achieve a counterweight effect to reduce the center of gravity of the whole machine and prevent rollover during operation on a hillside.

[0026] When in use, the crossbeam 100 is connected to the frame of the high-ground-clearance riding lawn mower to support the rear end of the vehicle. The left wheel leg 600 and the right wheel leg 300 are high-leg structures to enable the whole machine to pass through high ground clearance. The chain transmission structure brake components 400 inside the wheel legs on both sides realize the connection between the left wheel leg 600 and the right wheel leg 300 and the rear wheels 500 on both sides, and the dead weight of the parts can achieve a counterweight effect to reduce the center of gravity of the whole machine and prevent rollover during operation on a hillside.

[0027] Embodiment 2

[0028] See also Figure 1-Figure 4On the basis of the first embodiment, when the installation component 200 adopts the quick-install device 220, the quick-install device 220 includes an air pressure chamber 221 and a torsion spring rod 222. The torsion spring rod 222 is located on the side of the fixed plate 700. The torsion spring rod 222 and the fixed plate 700 are in a rotational connection state. One end of the air pressure chamber 221 is fixedly connected to the elastic airbag 223, and the other end of the air pressure chamber 221 is slidably connected to a clamping rod 224. A clamping groove 225 is opened on the side of the torsion spring rod 222. The clamping rod 224 is located in the clamping groove 225. The cross-sectional shape of the clamping rod 224 is adapted to the cross-sectional shape of the clamping groove 225. The outer side of the torsion spring rod 222 is fixedly connected to a mounting plate 226. After replacing the U-shaped clip 210 with the quick-release device 220, the crossbeam 100 is moved onto the fixed plate 700 to squeeze the elastic airbag 223, so that the gas stored in the elastic airbag 223 is squeezed into the air pressure chamber 221 fixedly connected thereto. The pressure in the air pressure chamber 221 increases, driving the clamping rod 224 slidingly connected to the air pressure chamber 221 to move, and the clamping rod 224 is immediately moved out of the clamping groove 225 on the torsion spring rod 222. The torsion spring rod 222 immediately loses its restriction and rotates under its own action, driving the mounting plate 226 fixedly connected to the torsion spring rod 222 to rotate, completing the restriction on the crossbeam 100, making the device easier to install at this point, thereby improving the usability of the device.

[0029] When in use, on the basis of Example 1, after the U-shaped clamp 210 is replaced with the quick-release device 220, the beam 100 is moved onto the fixed plate 700 to squeeze the elastic airbag 223, so that the gas stored in the elastic airbag 223 is squeezed into the air pressure chamber 221 fixedly connected thereto, and the pressure in the air pressure chamber 221 increases, driving the clamping rod 224 slidingly connected to the air pressure chamber 221 to move, and the clamping rod 224 is immediately moved out of the clamping groove 225 on the torsion spring rod 222, and the torsion spring rod 222 immediately loses its restriction and rotates under its own action, driving the mounting plate 226 fixedly connected to the torsion spring rod 222 to rotate, thereby completing the restriction on the beam 100.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rear drive wheel assembly device for a lawn mower with adjustable wheelbase, comprising a crossbeam (100), a right wheel leg (300) and a left wheel leg (600); characterized in that: The sides of the right wheel leg (300) and the left wheel leg (600) are equipped with brake components (400), the outer sides of the right wheel leg (300) and the left wheel leg (600) are equipped with rear wheels (500), and a mounting assembly (200) is arranged between the right wheel leg (300) and the left wheel leg (600) and the crossbeam (100).

2. The rear drive wheel assembly device of a lawn mower with adjustable wheelbase according to claim 1, characterized in that: The installation assembly (200) may be composed of one of a U-shaped clamp (210) or a quick-install device (220) and a fixing plate (700).

3. The rear drive wheel assembly device of a lawn mower with adjustable wheelbase according to claim 2, characterized in that: Four fixing plates (700) are provided, and the four fixing plates (700) are respectively located at the top of the right wheel leg (300) and the left wheel leg (600) and are in a fixed state.

4. The rear drive wheel assembly device of a lawn mower with adjustable wheelbase according to claim 3, characterized in that: The quick-install device (220) comprises an air pressure chamber (221) and a torsion spring rod (222); one end of the air pressure chamber (221) is fixedly connected to an elastic airbag (223); the other end of the air pressure chamber (221) is slidably connected to a clamping rod (224); a clamping groove (225) is provided on the side of the torsion spring rod (222); and a mounting plate (226) is fixedly connected to the outer side of the torsion spring rod (222).

5. The rear drive wheel assembly device of a lawn mower with adjustable wheelbase according to claim 4, characterized in that: The torsion spring rod (222) is located on the side of the fixing plate (700), and the torsion spring rod (222) and the fixing plate (700) are in a rotationally connected state.

6. The rear drive wheel assembly device of a lawn mower with adjustable wheelbase according to claim 5, characterized in that: The clamping rod (224) is located in the clamping slot (225), and the cross-sectional shape of the clamping rod (224) is matched with the cross-sectional shape of the clamping slot (225).

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