Hay rake

Abstract

The utility model discloses a hay rake, relates to the technical field of agricultural machinery, and solves the problems that according to an existing finger wheel type hay rake, the hay raking operation range and the hay raking operation angle are difficult to adjust, and the hay raking operation is difficult to achieve the expected effect. The two second hydraulic oil cylinders are installed on the main machine frame and used for pushing the two rotating supporting arms to rotate, each rotating supporting arm is rotationally connected with one steel beam, a plurality of buffering hay raking devices are installed on each steel beam, and the operation range of the hay raking machine can be adjusted by adjusting the distance between the two steel beams. The two first hydraulic oil cylinders are installed on the main machine frame and used for pushing the steel beams to ascend and descend step by step, the operation angle of the hay rake can be adjusted, each steel beam is connected with the base frame through one telescopic spring, the telescopic springs can pull the steel beams to stably deflect, and the stability of the multiple buffering hay raking devices in the operation process and the deflection process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a grass rake. Background Art

[0002] A grass rake is a grass harvesting machine that raks the grass scattered on the ground into grass strips. The purpose of raking grass is to make the grass fully dry and to facilitate the collection of hay. According to the relationship between the direction of the grass strips and the forward direction of the machine, grass rakes can be divided into two categories: horizontal rakes and side rakes. Among them, the side rakes are commonly used finger wheel rakes. The finger wheel rake is composed of several finger wheels arranged in parallel on the frame shaft. It has a simple structure and no transmission device. During operation, the finger wheel contacts the ground and rotates by the friction of the ground, rakes the grass to one side to form continuous and neat grass strips.

[0003] The current finger wheel type grass rakes have difficulty in adjusting the grass raking operation range and grass raking operation angle, and the grass raking operation is difficult to achieve the expected effect. Utility Model Content

[0004] In view of the above-mentioned problems that the raking operation range and raking operation angle of the current finger wheel type grass rake are difficult to adjust and the raking operation is difficult to achieve the expected effect, the purpose of the utility model is to provide a grass rake.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A grass raking machine, comprising: a base frame 8, a buffer grass raking device 1, a grass raking support arm 2, a first hydraulic cylinder 3, a rotating support arm, a second hydraulic cylinder 9 and a telescopic spring 10, the grass raking support arm 2 comprises: a steel beam 21, a first connecting part 22, a second connecting part 23 and a third connecting part 24, the first connecting part 22, the second connecting part 23 and the third connecting part 24 are all installed on the steel beam 21, the second connecting part 23 is arranged between the first connecting part 22 and the third connecting part 24, each steel beam 21 is installed with a plurality of buffer grass raking devices 1, the left and right ends of the base frame 8 are connected with a rotating support arm, The cylinder ends of the two second hydraulic cylinders 9 are connected to the upper surface of the base frame 8, the two second hydraulic cylinders 9 are coaxially arranged, the cylinder rod end of each second hydraulic cylinder 9 is rotatably connected to a rotating support arm, each second connecting portion 23 is rotatably connected to the end of a rotating support arm, the left and right ends of the base frame 8 are respectively rotatably connected to the cylinder end of a first hydraulic cylinder 3, the cylinder rod end of each first hydraulic cylinder 3 is rotatably connected to a first connecting portion 22, the left and right ends of the base frame 8 are respectively rotatably connected to one end of a telescopic spring 10, and the other end of each telescopic spring 10 is rotatably connected to a third connecting portion 24.

[0007] The above-mentioned grass rake, among others, further comprises: a traction frame connecting plate 4 , one end of which is connected to the base frame 8 .

[0008] The above-mentioned grass rake, among other things, also includes: a pull rod 7, two of the pull rods 7 are symmetrically arranged on the left and right sides of the traction frame connecting plate 4, one end of each pull rod 7 is rotatably connected to the end of the base frame 8, and the other end of each pull rod 7 is rotatably connected to the side of the traction frame connecting plate 4.

[0009] The above-mentioned grass raking machine, wherein the buffering grass raking device 1 includes: a grass raking disc 11, a curved neck rod 12 and an adjusting pull rod hanging ear 13, one end of the curved neck rod 12 is installed on one of the steel beams 21 through the adjusting pull rod hanging ear 13, and the grass raking disc 11 is rotatably installed on the other end of the curved neck rod 12.

[0010] In the above-mentioned grass raking machine, the buffer grass raking device 1 further includes: an angle adjustment rod 14, one end of the angle adjustment rod 14 is hinged to the adjustment rod hanging ear 13, and the other end of the angle adjustment rod 14 is hinged to the curved neck rod 12.

[0011] The above-mentioned grass rake, wherein the angle adjustment rod 14 includes: a first rod, a second rod and a spring, the first rod is inserted into the second rod and the two are slidably connected, the end of the first rod is hinged to the adjustment rod hook 13, the end of the second rod is hinged to the curved neck rod 12, one end of the spring is connected to the end of the first rod, and the other end of the spring is connected to the end of the second rod.

[0012] The above-mentioned grass rake further includes: a supporting leg 5, the upper end of the supporting leg 5 is connected to the middle part of the traction frame connecting plate 4.

[0013] The above-mentioned grass rake, among other things, also includes: wheels 6, the base frame 8 includes: a main frame and a wheel frame, the wheel frame is installed at the bottom of the main frame, two wheels 6 are installed on the wheel frame, one end of the traction frame connecting plate 4 is connected to the main frame, the cylinder ends of the two second hydraulic cylinders 9 are both rotatably connected to the upper part of the main frame, and the two first hydraulic cylinders 3, two pull rods 7 and two telescopic springs 10 are all rotatably connected to the main frame.

[0014] The above-mentioned grass rake, among others, further includes: a hook 41, which includes: a connecting ring and a connecting rod, the other end of the traction frame connecting plate 4 is provided with a clamping part, the connecting ring is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the clamping part through a pin.

[0015] In the above-mentioned grass rake, the left and right ends of the main frame are rotatably connected to a rotating support arm respectively.

[0016] Due to the adoption of the above technology, the utility model has the following positive effects compared with the prior art:

[0017] (1) In the present invention, the left and right ends of the main frame are rotatably connected to a rotating support arm respectively, the cylinder ends of the two second hydraulic cylinders are rotatably connected to the upper part of the main frame, the cylinder rod end of each second hydraulic cylinder is rotatably connected to a rotating support arm, the second connecting part is installed on the steel beam, each second connecting part is rotatably connected to the end of a rotating support arm, the position of the two steel beams relative to the main frame can be adjusted by the two second hydraulic cylinders, and a plurality of buffering grass raking devices are installed on each steel beam. By adjusting the distance between the two steel beams, the operating range of the grass raker can be adjusted;

[0018] (2) In the present invention, the cylinder end of the first hydraulic cylinder is rotatably connected to the base frame, the cylinder rod end of the first hydraulic cylinder is rotatably connected to the first connecting part, the first connecting part is installed on the steel beam, and the steel beam is pushed up and down step by step by the first hydraulic cylinder. A plurality of buffering grass raking devices are installed on each steel beam, and the operating angle of the grass raking machine can be adjusted by adjusting the lifting height of the steel beam;

[0019] (3) In the utility model, one end of the telescopic spring is rotatably connected to the base frame, and the other end of the telescopic spring is rotatably connected to the third connecting part. The third connecting part is installed on the steel beam. When the first hydraulic cylinder pushes the steel beam to rise and fall step by step, the telescopic spring can pull the steel beam to stably deflect, thereby adjusting the operating angle of the mower and improving the stability of multiple buffer mowing devices during operation and deflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a grass rake.

[0021] Figure 2 yes Figure 1 A partial enlarged view of .

[0022] Figure 3 It is a side view of a grass rake of the utility model.

[0023] Figure 4 yes Figure 3 A partial enlarged view of .

[0024] Figure 5 The utility model is a structural schematic diagram of a buffer grass raking device of a grass raking machine.

[0025] Figure 6 The utility model is a structural schematic diagram of a grass raking support arm of a grass raking machine.

[0026] In the attached drawings: 1. Buffering raking device; 2. Raking arm; 3. First hydraulic cylinder; 4. Traction frame connecting plate; 5. Legs; 6. Wheels; 7. Pull rod; 8. Base frame; 9. Second hydraulic cylinder; 10. Telescopic spring; 11. Raking disc; 12. Curved neck rod; 13. Adjustment pull rod hook; 14. Angle adjustment pull rod; 21. Steel beam; 22. First connecting part; 23. Second connecting part; 24. Third connecting part; 41. Hook. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0028] Please refer to Figures 1 to 6 As shown, a grass raking machine is shown, which includes: a base frame 8, a buffer grass raking device 1, a grass raking support arm 2, a first hydraulic cylinder 3, a rotating support arm, a second hydraulic cylinder 9 and a telescopic spring 10. The grass raking support arm 2 includes: a steel beam 21, a first connecting part 22, a second connecting part 23 and a third connecting part 24. The first connecting part 22, the second connecting part 23 and the third connecting part 24 are all installed on the steel beam 21, and the second connecting part 23 is arranged between the first connecting part 22 and the third connecting part 24. A plurality of buffer grass raking devices 1 are installed on each steel beam 21. A rotating support arm is connected to the left and right ends of the base frame 8. The two second The cylinder ends of the hydraulic cylinder 9 are connected to the upper surface of the base frame 8, the two second hydraulic cylinders 9 are coaxially arranged, the cylinder rod end of each second hydraulic cylinder 9 is rotatably connected to a rotating support arm, each second connecting portion 23 is rotatably connected to the end of a rotating support arm, the left and right ends of the base frame 8 are respectively rotatably connected to the cylinder end of a first hydraulic cylinder 3, the cylinder rod end of each first hydraulic cylinder 3 is rotatably connected to a first connecting portion 22, the left and right ends of the base frame 8 are respectively rotatably connected to one end of a telescopic spring 10, and the other end of each telescopic spring 10 is rotatably connected to a third connecting portion 24.

[0029] Furthermore, in a preferred embodiment, it also includes: a traction frame connecting plate 4, one end of which is connected to the base frame 8.

[0030] Furthermore, in a preferred embodiment, it also includes: a pull rod 7, two pull rods 7 are symmetrically arranged on the left and right sides of the traction frame connecting plate 4, one end of each pull rod 7 is rotatably connected to the end of the base frame 8, and the other end of each pull rod 7 is rotatably connected to the side of the traction frame connecting plate 4.

[0031] Furthermore, in a preferred embodiment, the buffering raking device 1 includes: a raking disc 11, a curved neck rod 12 and an adjusting pull rod hanging ear 13, one end of the curved neck rod 12 is installed on a steel beam 21 through the adjusting pull rod hanging ear 13, and the raking disc 11 is rotatably installed on the other end of the curved neck rod 12.

[0032] Furthermore, in a preferred embodiment, the buffering grass raking device 1 also includes: an angle adjustment rod 14, one end of the angle adjustment rod 14 is hinged to the adjustment rod hook 13, and the other end of the angle adjustment rod 14 is hinged to the curved neck rod 12.

[0033] Further, in a preferred embodiment, the angle adjustment rod 14 includes: a first rod, a second rod and a spring, the first rod is inserted into the second rod and the two are slidably connected, the end of the first rod is hinged to the adjustment rod hook 13, the end of the second rod is hinged to the curved neck rod 12, one end of the spring is connected to the end of the first rod, and the other end of the spring is connected to the end of the second rod.

[0034] Furthermore, in a preferred embodiment, it further comprises: a supporting leg 5 , the upper end of the supporting leg 5 is connected to the middle part of the traction frame connecting plate 4 .

[0035] Furthermore, in a preferred embodiment, it also includes: wheels 6, the base frame 8 includes: a main frame and a wheel frame, the wheel frame is installed at the bottom of the main frame, two wheels 6 are installed on the wheel frame, one end of the traction frame connecting plate 4 is connected to the main frame, the cylinder ends of the two second hydraulic cylinders 9 are both rotatably connected to the upper part of the main frame, and the two first hydraulic cylinders 3, two pull rods 7 and two telescopic springs 10 are all rotatably connected to the main frame.

[0036] Furthermore, in a preferred embodiment, it also includes: a hook 41, the hook 41 includes: a connecting ring and a connecting rod, the other end of the traction frame connecting plate 4 is provided with a clamping part, the connecting ring is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the clamping part through a pin.

[0037] Furthermore, in a preferred embodiment, the left and right ends of the main frame are rotatably connected to a rotatable support arm respectively.

[0038] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention.

[0039] The utility model also has the following implementation methods based on the above:

[0040] In a further embodiment of the utility model, the hook 41 is hung on an agricultural traction machine, and the grass rake is towed by the agricultural traction machine to perform grass raking operations.

[0041] In a further embodiment of the present invention, the other end of the traction frame connecting plate 4 is provided with a clamping portion, and the connection structure between the traction frame connecting plate 4 and the hook 41 is as shown in FIG. Figure 1 and Figure 3 As shown, the hook 41 includes: a connecting ring and a connecting rod, the connecting ring is connected to one end of the connecting rod, and a plurality of mounting holes are opened on the side wall of the clamping portion, such as Figure 3As shown, the other end of the traction frame connecting plate 4 and the hook 41 are connected and fixed by multiple pins, and the connecting ring is suspended on the agricultural traction machinery. Compared with the traditional grass rake and agricultural traction machinery connected and fixed by a pin, the connection method of connecting and fixing with multiple pins and then hanging by the hook 41 is more stable and has a higher degree of freedom, and is more suitable for agricultural traction machinery to tow the grass rake for raking operations.

[0042] In a further embodiment of the utility model, the left and right ends of the main frame are respectively rotatably connected to a rotating support arm, the cylinder ends of the two second hydraulic cylinders 9 are rotatably connected to the upper part of the main frame, the cylinder rod end of each second hydraulic cylinder 9 is rotatably connected to a rotating support arm, the second connecting part 23 is installed on the steel beam 21, and each second connecting part 23 is rotatably connected to the end of a rotating support arm. The positions of the two steel beams 21 relative to the main frame can be adjusted by the two second hydraulic cylinders 9, and a plurality of buffering grass mowing devices 1 are installed on each steel beam 21. By adjusting the spacing between the two steel beams 21, the operating range of the grass mower can be adjusted.

[0043] In a further embodiment of the utility model, the cylinder end of the first hydraulic cylinder 3 is rotatably connected to the base frame 8, the cylinder rod end of the first hydraulic cylinder 3 is rotatably connected to the first connecting part 22, the first connecting part 22 is installed on the steel beam 21, and the steel beam 21 is pushed up and down step by step by the first hydraulic cylinder 3. A plurality of buffering mowing devices 1 are installed on each steel beam 21, and the operating angle of the mower can be adjusted by adjusting the lifting height of the steel beam 21.

[0044] In a further embodiment of the utility model, one end of the telescopic spring 10 is rotatably connected to the base frame 8, and the other end of the telescopic spring 10 is rotatably connected to the third connecting part 24. The third connecting part 24 is installed on the steel beam 21. When the first hydraulic cylinder 3 pushes the steel beam 21 to rise and fall step by step, the telescopic spring 10 can pull the steel beam 21 to stably deflect, and can adjust the operating angle of the mower, thereby improving the stability of multiple buffer mowing devices 1 during operation and deflection.

[0045] In a further embodiment of the utility model, one end of the pull rod 7 is rotatably connected to the base frame 8, and the other end of the pull rod 7 is rotatably connected to the side of the traction frame connecting plate 4. The two pull rods 7 are symmetrically arranged, and the base frame 8 is pulled to move by the two pull rods 7 and the traction frame connecting plate 4, thereby improving the stability of the agricultural traction machinery towing the mower to perform mowing operations.

[0046] In a further embodiment of the utility model, the base frame 8 includes: a main frame and a wheel frame, the wheel frame is installed at the bottom of the main frame, and two wheels 6 are installed on the wheel frame. The two wheels 6 are symmetrically arranged on the left and right to facilitate the traction frame connecting plate 4 to pull the base frame 8 to move.

[0047] In a further embodiment of the utility model, by contracting the first hydraulic cylinder 3 and the second hydraulic cylinder 9, the size of the grass rake can be reduced, the space occupied by the grass rake is reduced, and the storage and movement of the grass rake are facilitated.

[0048] In a further embodiment of the utility model, the left and right ends of the main frame are rotatably connected to a rotating arm respectively, two second hydraulic cylinders 9 are installed on the main frame and are used to push the two rotating arms to rotate, each rotating arm is rotatably connected to a steel beam 21, and multiple buffer mowing devices 1 are installed on each steel beam 21. By adjusting the distance between the two steel beams 21, the operating range of the mower can be adjusted. Two first hydraulic cylinders 3 are installed on the main frame and are used to push the steel beams 21 up and down step by step, so as to adjust the operating angle of the mower. Each steel beam 21 is connected to the base frame 8 by a telescopic spring 10, and the telescopic spring 10 can pull the steel beam 21 to stably deflect, thereby improving the stability of multiple buffer mowing devices during operation and deflection.

[0049] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A grass rake, characterized in that: include: A base frame (8), a buffering grass raking device (1), a grass raking support arm (2), a first hydraulic cylinder (3), a rotating support arm, a second hydraulic cylinder (9) and a telescopic spring (10); the grass raking support arm (2) comprises a steel beam (21), a first connecting part (22), a second connecting part (23) and a third connecting part (24); the first connecting part (22), the second connecting part (23) and the third connecting part (24) are all mounted on the steel beam (21); the second connecting part (23) is arranged between the first connecting part (22) and the third connecting part (24); a plurality of buffering grass raking devices (1) are mounted on each steel beam (21); a rotating support arm (2) is connected to the left and right ends of the base frame (8); The two second hydraulic cylinders (9) are coaxially arranged, the cylinder rod end of each second hydraulic cylinder (9) is rotatably connected to a rotating support arm, each second connecting portion (23) is rotatably connected to the end of a rotating support arm, the left and right ends of the base frame (8) are respectively rotatably connected to the cylinder body end of a first hydraulic cylinder (3), the cylinder rod end of each first hydraulic cylinder (3) is rotatably connected to a first connecting portion (22), the left and right ends of the base frame (8) are respectively rotatably connected to one end of a telescopic spring (10), and the other end of each telescopic spring (10) is rotatably connected to a third connecting portion (24).

2. The grass rake according to claim 1, characterized in that: Also includes: A traction frame connecting plate (4), one end of which is connected to the base frame (8).

3. The grass rake according to claim 2, characterized in that: Also includes: A pull rod (7), wherein two pull rods (7) are symmetrically arranged on the left and right sides of the traction frame connecting plate (4), one end of each pull rod (7) is rotatably connected to the end of the base frame (8), and the other end of each pull rod (7) is rotatably connected to the side of the traction frame connecting plate (4).

4. The grass rake according to claim 2, characterized in that: The buffering grass raking device (1) comprises: a grass raking disc (11), a curved neck rod (12) and an adjusting pull rod hanging ear (13); one end of the curved neck rod (12) is mounted on a steel beam (21) through the adjusting pull rod hanging ear (13); and the grass raking disc (11) is rotatably mounted on the other end of the curved neck rod (12).

5. The grass rake according to claim 4, characterized in that: The buffering grass raking device (1) also includes: an angle adjustment rod (14), one end of the angle adjustment rod (14) is hinged to the adjustment rod hanging ear (13), and the other end of the angle adjustment rod (14) is hinged to the curved neck rod (12).

6. The grass rake according to claim 5, characterized in that: The angle adjustment rod (14) comprises: a first rod, a second rod and a spring, the first rod is inserted into the second rod and the two are slidably connected, the end of the first rod is hinged to the adjustment rod hook (13), the end of the second rod is hinged to the curved neck rod (12), one end of the spring is connected to the end of the first rod, and the other end of the spring is connected to the end of the second rod.

7. The grass rake according to claim 2, characterized in that: Also includes: A supporting leg (5), the upper end of which is connected to the middle of the traction frame connecting plate (4).

8. The grass rake according to claim 3, characterized in that: Also includes: The wheel (6) and the base frame (8) include: a main frame and a wheel frame, the wheel frame is installed at the bottom of the main frame, two wheels (6) are installed on the wheel frame, one end of the traction frame connecting plate (4) is connected to the main frame, the cylinder ends of the two second hydraulic cylinders (9) are rotatably connected to the upper part of the main frame, and the two first hydraulic cylinders (3), two pull rods (7) and two telescopic springs (10) are rotatably connected to the main frame.

9. The grass rake according to claim 2, characterized in that: Also includes: The hook (41) comprises a connecting ring and a connecting rod, the other end of the traction frame connecting plate (4) is provided with a clamping portion, the connecting ring is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the clamping portion via a pin.

10. The grass rake according to claim 8, characterized in that: The left and right ends of the main frame are rotatably connected to a rotating support arm respectively.

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