Three-ring floating type mower

Abstract

The invention discloses a three-ring floating type mower which comprises a rack, a transverse transmission mechanism, a vertical transmission mechanism, a weeding device, a profiling support and a vertical adjusting rod. A transverse transmission mechanism is installed on the rack, the lower end of the transverse transmission mechanism is connected with a vertical transmission mechanism, the lower end of the vertical transmission mechanism is sequentially connected with a weeding device and a profiling support, the upper end of the profiling support is connected with a vertical adjusting rod, and the upper end of the vertical adjusting rod is connected with the rack. Power is provided through the engine of the tractor, the power is transmitted to the transverse transmission mechanism, then the power is transmitted to the vertical transmission mechanism through the transverse transmission mechanism, and when the profiling support deviates, the vertical transmission mechanism drives the weeding device to deviate or stretch out and draw back, so that the height and angle of a cutter of the weeding device are adjusted. By means of the arrangement, when the mower works, the height and angle of the weeding device can be adjusted according to the terrain, the mowing uniformity is ensured, and the weeding effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery and equipment, and in particular relates to a three-ring floating lawn mower. Background Art

[0002] my country has been a major agricultural country since ancient times, and agriculture has always been related to the lifeblood of the country. With the development of modern society, various farming tools have emerged, which have greatly improved farming efficiency and saved a lot of manpower and material resources. Currently, most traditional lawn mowers are fixed structures, and the mowing height and angle are difficult to automatically adjust according to the undulations of the terrain, resulting in uneven mowing, missed mowing or over-mowing when operating on uneven ground, thus affecting mowing efficiency.

[0003] Therefore, a three-ring floating lawn mower is proposed to solve the problems existing in the prior art. The lawn mower can better adapt to the terrain undulations, ensure the uniformity of mowing, and improve the mowing efficiency. Summary of the invention

[0004] The main purpose of the present invention is to solve the problem that the height and angle of the lawn mower are difficult to adjust and the problem of uneven grass cutting in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides a three-ring floating lawn mower, comprising a frame, a lateral transmission mechanism, a vertical transmission mechanism, a weeding device, a contour support, and a vertical adjustment rod; A horizontal transmission mechanism is installed on the frame, the lower end of which is connected to the vertical transmission mechanism, the lower end of which is sequentially connected to a weeding device and a contour support, the upper end of the contour support is connected to a vertical adjustment rod, and the upper end of the vertical adjustment rod is connected to the frame.

[0006] Furthermore, the transverse transmission mechanism includes: a spiral bevel gear commutator, a coupling, a main drive shaft, and a right-angle commutator; the frame is fixedly connected to the spiral bevel gear commutator and three right-angle commutators respectively, and the output end of the spiral bevel gear commutator is connected to the three main drive shafts respectively through three couplings, and the three main drive shafts are connected to the three right-angle commutators respectively through three couplings.

[0007] Furthermore, the vertical transmission mechanism includes: an inner spline shaft, an outer spline shaft, a universal joint, and a working shaft; the upper end of the inner spline shaft is fixedly connected to the right-angle commutator, the lower end of the inner spline is slidingly connected to the outer spline shaft, the upper end of the universal joint is fixedly connected to the outer spline shaft, and the lower end of the universal joint is fixedly connected to the working shaft.

[0008] Furthermore, the weeding device includes: a tool holder seat, a tool holder, a blade, a gasket, an end cover, and a locking nut; the tool holder seat is fixedly connected to the working shaft, the tool holder is connected to the lower end of the tool holder seat, the blade is fixedly connected to the tool holder, the upper end of the gasket is connected to the blade, the other end of the gasket is connected to the end cover, and the locking nut is connected to the end of the working shaft.

[0009] Furthermore, the contoured support includes: three vertical adjustment rod supports, three support bodies, and three contoured ground wheels; the vertical adjustment support is fixedly connected to the upper end of the support body, and the support body is connected to the working shaft through a bearing.

[0010] Furthermore, the three vertical adjustment supports correspond to the three support bodies and are evenly distributed; the three contoured ground wheels correspond one-to-one to the three vertical adjustment rod supports and are fixedly connected to the lower ends of the support bodies.

[0011] Furthermore, the vertical adjustment rod includes: a spherical bearing, an adjustment rod body, and a compression spring; the spherical bearings are movably connected to the two ends of the adjustment rod body respectively, the upper end of the adjustment rod body is fixedly connected to the support at the lower end of the frame through the spherical bearing, the lower end of the adjustment rod body is fixedly connected to the vertical adjustment rod support at the upper end of the contoured support through the spherical bearing, and the compression spring is nested in the adjustment rod body.

[0012] Furthermore, each square support has three vertical adjustment rods and they correspond one-to-one with the vertical adjustment rod supports on the contoured support.

[0013] Beneficial effects: The present invention has a simple structure, is firm and stable, and is not easy to be damaged during operation. At the same time, it solves the problem that traditional lawn mowers cannot change with the undulations of the terrain, resulting in missed mowing or the mowing depth is too deep and the blade is buried in the soil. It can better adapt to the undulations of the terrain, ensure the uniformity of mowing, and improve the mowing efficiency. In addition, the lawn mower can be conveniently connected to a tractor, using the tractor's engine as a power source, quickly completing the weeding operation, reducing labor costs, and has market promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure provided by the present invention; Figure 2 A schematic top view of the structure provided by the present invention; Figure 3 A schematic structural diagram of the vertical transmission device provided by the present invention; Figure 4 A schematic diagram of a half-section structure of a weeding device provided by the present invention; Figure 5 A schematic diagram of a half-section structure of a contour support provided by the present invention; Figure 6 A schematic structural diagram of the vertical adjustment rod provided by the present invention; Figure numerals: 1, frame; 2, horizontal transmission mechanism; 3, vertical transmission mechanism; 4 weeding device; 5, contour support; 6, vertical adjustment rod; 21, spiral bevel gear commutator; 22 coupling; 23, main transmission shaft; 24, right-angle commutator; 31, internal spline shaft; 32, external spline shaft; 33, universal joint; 34, working shaft; 41, tool holder seat; 42, tool holder; 43, blade; 44, gasket; 45, end cover; 46, locking nut; 51, vertical adjustment rod support; 52, support body; 53, contour ground wheel; 61, spherical bearing; 62, adjustment rod body; 63, compression spring. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] The application principle of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Embodiment 1: See also Figure 1 A three-ring floating lawn mower comprises: a frame 1, a lateral transmission mechanism 2, a vertical transmission mechanism 3, a weeding device 4, a contour support 5, and a vertical adjustment rod 6.

[0018] The frame 1 is the mounting carrier of the entire three-ring floating lawn mower, which is connected to the rear of the tractor through a three-point suspension, and uses the tractor's engine as a power source. A transverse transmission mechanism 2 is installed on the frame 1, and the lower end of the transverse transmission mechanism 2 is connected to the vertical transmission mechanism 3, and the lower end of the vertical transmission mechanism 3 is connected to the weeding device 4 and the contour support 5, and the upper end of the contour support 5 is connected to the vertical adjustment rod 6, and the upper end of the vertical adjustment rod 6 is connected to the frame 1.

[0019] See also Figure 2 The horizontal transmission mechanism 2 includes: a spiral bevel gear commutator 21, a coupling 22, a main transmission shaft 23, and a right-angle commutator 24. The frame 1 is fixedly connected to the spiral bevel gear commutator 21 and three right-angle commutators 24 through screw rods. The output end of the spiral bevel gear commutator 21 is connected to three main transmission shafts 23 through three couplings 22, and the three main transmission shafts 23 are connected to three right-angle commutators 24 through three couplings 22. The three right-angle converters 24 are distributed in a triangle. The engine of the tractor is used as the power source, and is connected to one end of the spiral bevel gear steering gear 21 through a universal shaft, and the power is transmitted to one end of the spiral bevel gear steering gear 21, and then the spiral bevel gear commutator 21 outputs to the three right-angle commutators 24, so as to transmit the power to the vertical transmission mechanism 3.

[0020] See also Figure 3 The vertical transmission mechanism 3 includes: an inner spline shaft 31, an outer spline shaft 32, a universal joint 33, and a working shaft 34. The upper end of the inner spline shaft 31 is fixedly connected to the right-angle commutator 24 through a tightening sleeve structure, the lower end of the inner spline shaft 31 is slidably connected to the outer spline shaft 32, the upper end of the universal joint 33 is fixedly connected to the outer spline shaft 32 through a fixing pin, and the lower end of the universal joint 33 is fixedly connected to the working shaft 34 through a fixing pin. When the universal joint 33 is offset at a certain angle, the outer spline shaft 32 can slide up and down along the inner wall of the inner spline shaft 31 to prevent the transmission device from getting stuck. The working shaft 34 connects the weeding device 4 and the contour support 5.

[0021] See also Figure 4 The weeding device 4 includes: a tool holder seat 41, a tool holder 42, a blade 43, a gasket 44, an end cover 45 and a locking nut 46; the tool holder seat 41 and the working shaft 34 are circumferentially positioned by a flat key, and the circumferential movement of the working shaft 34 is transmitted to the weeding device 4, which is used to drive the entire weeding device 4 to rotate, the upper end of the tool holder 42 is connected to the lower end of the tool holder seat 41, the upper end of the blade 43 is fixedly connected to the lower end of the tool holder 42 by bolts, the upper end of the gasket 44 is connected to the lower end of the blade 43, the lower end of the gasket 44 is connected to the end cover 45, and the locking nut 46 is connected to the end of the working shaft 34, and the end cover 45 is locked to provide a pre-tightening force to tighten the entire weeding device 4.

[0022] See also Figure 5 The contour support 5 includes: a vertical adjustment rod support 51, a support body 52, and a contour ground wheel 53. The three vertical adjustment supports 51 are evenly distributed and fixedly welded to the upper end of the support body 52. ​​The support body 52 is connected to the working shaft 34 through a bearing, and the working shaft 34 runs through the support body 52. ​​The bearing and the support body 52 are connected by interference fit. The three contour ground wheels 53 correspond to the vertical adjustment rod support 51 one by one and are fixedly connected to the lower end of the support body 52 through bolt connection. After the contour ground wheels 53 contact the ground of different heights, they move up and down closely with the ground information, thereby driving the support body 52 to deflect. When the support body 52 deflects, the deflection amount can be transmitted to the working shaft 34, so that the weeding device 4 as a whole follows the deflection of the working shaft 34, thereby adjusting the tool height and angle of the weeding device 4 according to the terrain undulations.

[0023] See also Figure 6The vertical adjustment rod 6 includes: a spherical bearing 61, an adjustment rod body 62, and a compression spring 63. The two spherical bearings 61 are movably connected to the two ends of the adjustment rod body 62, respectively. The upper end of the adjustment rod body 62 is fixedly connected to the support at the lower end of the frame 1 through the spherical bearing 61, and the lower end of the adjustment rod body 62 is fixedly connected to the vertical adjustment rod support 51 at the upper end of the profiling support 5 through the spherical bearing 61. The compression spring 63 is embedded in the adjustment rod body 62. There are three vertical adjustment rods 6 on each profiling support 5, and they correspond to the vertical adjustment rod support 51 on the profiling support 5. The vertical adjustment rod 6 will expand and contract after the profiling support 5 is offset to ensure the stability of the entire device.

[0024] Here’s how it works: When in use, the frame 1 is connected to the rear of the tractor through a three-point suspension, and the tractor's engine is used as a power source. The power is transmitted to the spiral bevel gear commutator 21 through a universal shaft, and then output to three right-angle commutators 24 by the spiral bevel gear commutator 21. The right-angle commutator 24 is connected to the vertical transmission mechanism 3 through a tightening sleeve structure, so as to transmit the power to the vertical transmission mechanism 3. The working shaft 34 in the vertical transmission mechanism 3 is respectively connected to the weeding device 4 and the contour support 5. When working, the entire three-ring floating lawn mower is placed down until it touches the ground through the three-point suspension at the rear of the tractor. When the ground is high When the height is different, the contoured ground wheel 53 moves up and down closely with the ground, thereby driving the support body 52 to deviate. At the same time, the vertical adjustment rod 6 is extended and retracted, and the inner spline shaft 31 and the outer spline shaft 32 slide relatively. At this time, the entire contoured support 5 deviates and retracts as the ground height changes, and the contoured support 5 can transmit the offset and retraction amount to the working shaft 34 through the bearing. The weeding device 4 is fixedly connected to the working shaft 34, so the weeding device 4 as a whole deviates and retracts following the working shaft 34, thereby realizing the adjustment of the tool height and angle of the weeding device 4 according to the terrain undulations.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-ring floating lawn mower, characterized in that: It includes a frame, a horizontal transmission mechanism, a vertical transmission mechanism, a weeding device, a contour support and a vertical adjustment rod; A horizontal transmission mechanism is installed on the frame, the lower end of which is connected to the vertical transmission mechanism, the lower end of which is sequentially connected to a weeding device and a contour support, the upper end of the contour support is connected to a vertical adjustment rod, and the upper end of the vertical adjustment rod is connected to the frame.

2. The three-ring floating lawn mower according to claim 1, characterized in that: The transverse transmission mechanism includes: a spiral bevel gear commutator, a coupling, a main transmission shaft, and a right-angle commutator; the frame is fixedly connected to the spiral bevel gear commutator and three right-angle commutators respectively, the output end of the spiral bevel gear commutator is connected to the three main transmission shafts respectively through three couplings, and the three main transmission shafts are connected to the three right-angle commutators respectively through three couplings.

3. The three-ring floating lawn mower according to claim 1, characterized in that: The vertical transmission mechanism includes: an inner spline shaft, an outer spline shaft, a universal joint, and a working shaft; the upper end of the inner spline shaft is fixedly connected to the right-angle commutator, the lower end of the inner spline is slidably connected to the outer spline shaft, the upper end of the universal joint is fixedly connected to the outer spline shaft, and the lower end of the universal joint is fixedly connected to the working shaft.

4. The three-ring floating lawn mower according to claim 1, characterized in that: The weeding device includes: a tool holder seat, a tool holder, a blade, a gasket, an end cover, and a locking nut; the tool holder seat is fixedly connected to the working shaft, the tool holder is connected to the lower end of the tool holder seat, the blade is fixedly connected to the tool holder, the upper end of the gasket is connected to the blade, the other end of the gasket is connected to the end cover, and the locking nut is connected to the end of the working shaft.

5. The three-ring floating lawn mower according to claim 1, characterized in that: The contour bearing comprises: three vertical adjustment rod bearings, three bearing bodies and three contour ground wheels; the vertical adjustment bearing is fixedly connected to the upper end of the bearing body, and the bearing body is connected to the working shaft through a bearing.

6. The three-ring floating lawn mower according to claim 5, characterized in that: The three vertical adjustment supports correspond to the three support bodies and are evenly distributed; the three contoured ground wheels correspond to the three vertical adjustment rod supports one by one and are fixedly connected to the lower ends of the support bodies.

7. The three-ring floating lawn mower according to claim 1, characterized in that: The vertical adjustment rod includes: a spherical bearing, an adjustment rod body, and a compression spring; the spherical bearings are movably connected to the two ends of the adjustment rod body respectively, the upper end of the adjustment rod body is fixedly connected to the support at the lower end of the frame through the spherical bearing, the lower end of the adjustment rod body is fixedly connected to the vertical adjustment rod support at the upper end of the contoured support through the spherical bearing, and the compression spring is nested in the adjustment rod body.

8. The three-ring floating lawn mower according to claim 7, characterized in that: There are three vertical adjustment rods on each square support and they correspond one-to-one with the vertical adjustment rod supports on the contoured support.

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