Steering mechanism for farmland mower

Abstract

The steering mechanism for the farmland mower comprises a movable device, a steering wheel carrier set and a machine body connecting frame set, a movable assembly comprises an upper pressing disc, a speed limiting disc is arranged on the lower side of the upper pressing disc, the center of the speed limiting disc is fixedly connected with a movable center shaft, a friction plate is arranged on the lower side of the speed limiting disc, and a lower pressing disc is arranged on the lower side of the friction plate. The upper pressing disc and the lower pressing disc are detachably connected, the lower pressing disc is fixedly connected to the bearing seat, the bearing seat is fixedly connected to the upper end of the fixed shell, and the movable bearings are arranged at the upper end and the lower end of the interior of the fixed shell respectively. The steering wheel can flexibly steer in complex terrains, the operability and adaptability of the farmland mower can be improved, the weeding efficiency is improved, the possibility of grass leakage and crop damage is reduced, the farmland mower can better cope with various terrains and working environments, and the efficiency and quality of farmland weeding are improved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural mowers, and particularly to a steering mechanism for a farmland mower. Background Art

[0002] Traditional farmland mowers usually use fixed wheels or tracks to push the machine forward, but there may be some limitations when turning. Especially in narrow farmlands or irregular terrains, traditional farmland mowers may not be able to turn easily and flexibly, which affects the operation efficiency and quality, and may even lead to missed grass or damage to crops.

[0003] Therefore, there is an urgent need for a steering mechanism for a farmland mower, which can be a steering wheel that can turn flexibly in complex terrains, improve the operability and adaptability of the farmland mower, thereby improving the weeding efficiency, reducing the possibility of missed grass and crop damage, and enabling the farmland mower to better cope with various terrains and working environments, improving the efficiency and quality of farmland weeding. Summary of the Invention

[0004] A steering mechanism for a farmland mower, which can be a steering wheel that can turn flexibly in complex terrains, improve the operability and adaptability of the farmland mower, thereby improving the weeding efficiency, reducing the possibility of missed grass and crop damage, and enabling the farmland mower to better cope with various terrains and working environments, improving the efficiency and quality of farmland weeding.

[0005] A steering mechanism for a farmland mower includes a movable device, a steering wheel frame group and a body connecting frame group, wherein:

[0006] The movable assembly includes an upper pressing disc, a speed-limiting disc is arranged below the upper pressing disc, the center of the speed-limiting disc is fixedly connected with a movable central shaft, a friction disc is arranged below the speed-limiting disc, a lower pressing disc is arranged below the friction disc, the upper pressing disc and the lower pressing disc are detachably connected, the lower pressing disc is fixedly connected to a bearing seat, the bearing seat is fixedly connected to the upper end of a fixed outer shell, movable bearings are respectively arranged at the upper and lower ends inside the fixed outer shell, the friction disc, the lower pressing disc, the bearing seat and the fixed outer shell are assembled on the movable central shaft, and one end of the movable central shaft located inside the fixed outer shell is assembled with two movable bearings;

[0007] The steering wheel frame group includes a wheel frame body and a wheel, the wheel frame body is fixedly connected to the lower end of the movable central shaft, the bottom end of the wheel frame body is in a "Y" shape, and frame body connection holes are symmetrically arranged on the "Y" - shaped branches thereof, wheel shafts are arranged on both sides of the wheel, the wheel shafts are rotatably assembled in the frame body connection holes, and fixing blocks are sleeved at the ends of the wheel shafts;

[0008] The body connecting frame group includes a wheel fixing rod, and both ends of the wheel fixing rod are fixedly connected to a fixed housing. A set of connecting plates are respectively arranged near the fixed housing at both ends of the wheel fixing rod, and a set of connecting blocks are symmetrically arranged at the central part of the wheel fixing rod.

[0009] Preferably, the upper pressing plate and the lower pressing plate are assembled with a set of screw rods and nuts, and buffer springs are sleeved on the screw rods.

[0010] Preferably, the connecting plate is of a trapezoidal structure, and a set of connecting plate holes are symmetrically arranged on one side of the long trapezoidal side. An extension connecting rod is movably assembled in the connecting plate holes, and the other end of the extension connecting rod is movably assembled on the mowing machine body.

[0011] Preferably, a spring shock absorber is arranged in the middle of the wheel fixing rod, and the spring shock absorber is arranged between the two connecting blocks.

[0012] Preferably, shock-absorbing rubber rings are sleeved at both ends of the buffer spring.

[0013] The beneficial effects of the present utility model: For a steering mechanism of a farmland mowing machine of the present utility model, by arranging the configuration of the movable bearing and the movable central shaft, the farmland mowing machine is more flexible when steering, and can easily adapt to narrow or complex terrains, such as narrow farmland gaps or irregular terrains. This flexibility improves the operability of the farmland mowing machine, enables it to cover the entire farmland more effectively, and reduces the possibility of missed grass. The "Y" - shaped design of the wheel frame body and the connection method of the wheel shaft ensure the stability and balance of the equipment under different terrains, thereby improving the operation comfort and control accuracy of the operator. The detachable assembly design facilitates the maintenance and replacement of the movable device, and extends the service life of the equipment. At the same time, shock - absorbing devices such as buffer springs and shock - absorbing rubber rings are added, which can effectively reduce vibration and impact, reduce the loss and failure rate of machine parts, and reduce the maintenance and replacement costs. The design of the extension connecting rod enables the equipment to be adjusted according to actual needs, ensures the stability and operation efficiency of the machine, and improves the operation comfort and accuracy by arranging friction plates, greatly enhancing its practical value. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of a steering mechanism of a farmland mowing machine of the present utility model;

[0015] Figure 2 It is a schematic diagram of the movable device and the steering wheel frame group of a steering mechanism of a farmland mowing machine of the present utility model;

[0016] Figure 3 It is a disassembled schematic diagram of the movable device of a steering mechanism of a farmland mowing machine of the present utility model;

[0017] Figure 4Schematic diagram of the speed limit disc and movable bearing of the steering mechanism for a farmland mower of the present utility model;

[0018] Figure 5 The steering mechanism for a farmland mower of the present utility model Figure 1 Enlarged schematic diagram of A in

[0019] In the figure: movable device 1, upper pressure plate 101, speed limit disc 102, movable central shaft 103, friction plate 104, lower pressure plate 105, bearing seat 106, fixed housing 107, movable bearing 108, buffer spring 109;

[0020] Steering wheel frame group 2, wheel frame body 201, frame body connection hole 202, wheel 203, wheel shaft 204, fixed block 205;

[0021] Machine body connection frame group 3, wheel fixing rod 301, connecting plate 302, connecting block 303, connecting plate hole 304, extended connecting rod 305, spring shock absorber 306. Specific implementation mode

[0022] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model will be clearly and completely described by using specific embodiments in combination with the accompanying drawings.

[0023] Embodiment 1:

[0024] As Figures 1-5 shown, the Figures 1-5 of this embodiment is the steering mechanism for a farmland mower of the present utility model, including a movable device 1, a steering wheel frame group 2 and a machine body connection frame group 3, wherein:

[0025] The movable assembly 1 includes an upper pressure plate 101, a speed limit disc 102 is arranged on the lower side of the upper pressure plate 101, the center of the speed limit disc 102 is fixedly connected to a movable central shaft 103, a friction plate 104 is arranged on the lower side of the speed limit disc 102, a lower pressure plate 105 is arranged on the lower side of the friction plate 104, the upper pressure plate 101 and the lower pressure plate 105 are detachably connected, the lower pressure plate 105 is fixedly connected to the bearing seat 106, the bearing seat 106 is fixedly connected to the upper end of the fixed housing 107, movable bearings 108 are respectively arranged at the upper and lower ends inside the fixed housing 107, the friction plate 104, the lower pressure plate 105, the bearing seat 106 and the fixed housing 107 are assembled on the movable central shaft 103, and one end of the movable central shaft 103 located inside the fixed housing 107 is assembled and fitted with two movable bearings 108;

[0026] The steering wheel frame group 2 includes a wheel frame body 201 and a wheel 203. The wheel frame body 201 is fixedly connected to the lower end of the movable central shaft 103. The bottom end of the wheel frame body 201 is in a "Y" shape, and frame body connection holes 202 are symmetrically arranged on the "Y" - shaped branches. On both sides of the wheel 203, there are wheel shafts 204, and the wheel shafts 204 are rotatably fitted in the frame body connection holes 202. The ends of the wheel shafts 204 are sleeved with fixing blocks 205;

[0027] The body connection frame group 3 includes a wheel fixing rod 301. Both ends of the wheel fixing rod 301 are fixedly connected to the fixed outer shell 107. A set of connecting plates 302 are respectively arranged at both ends of the wheel fixing rod 301 near the fixed outer shell 107. A set of connection blocks 303 are symmetrically arranged at the central part of the wheel fixing rod 301.

[0028] The upper pressure plate 101 and the lower pressure plate 105 are fitted by a set of screw rods and nuts, and buffer springs 109 are sleeved on the screw rods.

[0029] The connecting plate 302 is in a trapezoidal structure. A set of connecting plate holes 304 are symmetrically arranged on one side of the long trapezoidal side. An extended connecting rod 305 is movably fitted in the connecting plate holes 304, and the other end of the extended connecting rod 305 is movably fitted on the mowing machine body.

[0030] A spring shock absorber 306 is arranged in the middle of the wheel fixing rod 301, and the spring shock absorber 306 is arranged between the two connection blocks 303.

[0031] Shock - absorbing rubber rings are sleeved at both ends of the buffer spring 109.

[0032] When this device is in use, first, install the upper pressure plate 101 and ensure its correct position. Place the speed-limiting disc 102 under the upper pressure plate 101, install the friction plate 104 under the speed-limiting disc 102, and one end of the movable central shaft 103 fixedly connected to the speed-limiting disc 102 passes through the corresponding openings of the friction plate 104, the lower pressure plate 105, the bearing seat 106, and the fixed housing 107. The bottom of the movable central shaft 103 is fixedly connected to the wheel frame 201. Install screws and nuts between the upper pressure plate 101 and the lower pressure plate 105, and sleeved with a buffer spring 109 to provide pressure and elasticity. The wheel shaft 204 is sleeved onto the frame connection hole 202 and ensure that it can rotate freely. Pass the wheel shaft 204 through one end of the connection hole and sleeve the fixed block 205 to ensure a firm connection. Fix the left and right ends of the wheel fixing rod 301 to the fixed housing 107 to ensure a stable connection. Install a set of connecting plates 302 at the left and right ends of the wheel fixing rod 301 near the fixed housing 107 and ensure their symmetrical positions. Install the connecting block 303 at the central part of the wheel fixing rod 301 and ensure its correct position. According to the use requirements, use the connecting plate 302 with a trapezoidal structure, install it on the connecting block 303, and connect it to the mowing machine body. Install a spring shock absorber 306 at the central part of the connecting block 303 to reduce vibration and impact. The shock-absorbing rubber sleeve is sleeved at both ends of the buffer spring 109 to provide additional shock-absorbing effect.

[0033] It should be noted that the embodiments described herein are only partial embodiments of the present utility model, rather than all implementation manners of the present utility model. The embodiments are only exemplary, and their functions are only to provide a more intuitive and clear way to understand the content of the present utility model, rather than a limitation on the technical solutions described in the present utility model. Without departing from the concept of the present utility model, all other implementation manners that can be thought of by all ordinary technical personnel in the art without creative labor, as well as other simple replacements and various changes to the technical solutions of the present utility model, all belong to the protection scope of the present utility model.

Claims

1. A steering mechanism for a farm mower, characterized in that, It includes a movable component (1), a steering wheel frame group (2) and a body connecting frame group (3), where: The movable component (1) includes an upper pressure plate (101). A speed limit disc (102) is provided on the lower side of the upper pressure plate (101). The center of the speed limit disc (102) is fixedly connected to a movable central shaft (103). A friction plate (104) is provided on the lower side of the speed limit disc (102). A lower pressure plate (105) is provided on the lower side of the friction plate (104). The upper pressure plate (101) and the lower pressure plate (105) are detachably connected. The lower pressure plate (105) is fixedly connected to a bearing seat (106). The bearing seat (106) is fixedly connected to the upper end of a fixed housing (107). Movable bearings (108) are respectively provided at the upper and lower ends inside the fixed housing (107). The friction plate (104), the lower pressure plate (105), the bearing seat (106) and the fixed housing (107) are assembled on the movable central shaft (103). One end of the movable central shaft (103) located inside the fixed housing (107) is assembled with two movable bearings (108); The steering wheel frame group (2) includes a wheel frame body (201) and a wheel (203). The wheel frame body (201) is fixedly connected to the lower end of the movable central shaft (103). The bottom end of the wheel frame body (201) is in a "Y" shape. Frame body connection holes (202) are symmetrically provided on the "Y" - shaped branches. Wheel shafts (204) are provided on both sides of the wheel (203). The wheel shafts (204) are rotatably assembled in the frame body connection holes (202). Fixed blocks (205) are sleeved at the ends of the wheel shafts (204); The body connecting frame group (3) includes a wheel fixing rod (301). Both ends of the wheel fixing rod (301) are fixedly connected to the fixed housing (107). A set of connecting plates (302) are respectively provided at both ends of the wheel fixing rod (301) near the fixed housing (107). A set of connection blocks (303) are symmetrically provided at the central part of the wheel fixing rod (301).

2. The steering mechanism for a farmland lawn mower according to claim 1, wherein, The upper pressure plate (101) and the lower pressure plate (105) are assembled by a set of screw rods and nuts. Buffer springs (109) are sleeved on the screw rods.

3. The steering mechanism for a farmland lawn mower according to claim 1, characterized in that, The connecting plates (302) are in a trapezoidal structure. A set of connecting plate holes (304) are symmetrically provided on one side of the long trapezoidal side. An extension connecting rod (305) is movably assembled in the connecting plate holes (304). The other end of the extension connecting rod (305) is movably assembled on the mowing machine body.

4. The steering mechanism for a farmland lawn mower according to claim 1, characterized in that, A spring shock absorber (306) is provided in the middle of the wheel fixing rod (301), and the spring shock absorber (306) is arranged between the two connection blocks (303).

5. The steering mechanism for a farm mower according to claim 2, characterized in that, Shock - absorbing rubber rings are sleeved at both ends of the buffer spring (109).

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