Self-propelled hay rake

Abstract

The self-propelled hay rake comprises a fixing frame and a lifting arm, a self-propelled chassis is correspondingly and fixedly installed at the bottom of the fixing frame, the front side of the fixing frame is rotationally connected with a hay raking assembly through a rotating device, and the bottom end of the lifting arm is rotationally connected to the upper surface of the fixing frame through a rotating device. A pull rod is correspondingly arranged between the top end of the lifting arm and the rear side of the hay raking assembly, and the top end and the bottom end of the pull rod are rotationally connected with the top end of the lifting arm and the rear side of the hay raking assembly through rotating devices respectively. The hay raking structure has the advantages that the problem of inconvenience in towing, mounting and dismounting is avoided, the hay raking structure can conveniently and flexibly turn and walk, and the hay raking structure can be prevented and limited under the matching action of the anti-lifting limiting component, the lifting arm, the pull rod and the telescopic adjusting component, so that the hay raking structure can be stably used, and the use requirements are well met.

Description

Technical Field

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

[0002] A hay rake is a hay harvesting machine that raks the hay scattered on the ground into strips. The purpose of raking hay is to make the hay fully dry and facilitate the collection of hay.

[0003] The existing towed grass rakes require external mechanical traction, which makes them inconvenient to install and disassemble during towing, as well as inflexible in walking and turning. In addition, the telescopic lifting and lowering components of the existing grass rakes lack an anti-lifting and limiting structure, which is not conducive to the anti-lifting and limiting of the grass rake structure, thereby hindering the stable use of the grass rake structure and failing to meet usage requirements. Utility Model Content

[0004] In order to overcome the technical defects in the prior art and effectively solve the technical problems in the background technology, the utility model provides the following technical solutions:

[0005] A self-propelled grass mower comprises a fixed frame and a lifting arm, a self-propelled chassis is fixedly installed on the bottom of the fixed frame, a grass mowing assembly is rotatably connected to the front side of the fixed frame through a rotating device, and the bottom end of the lifting arm is rotatably connected to the upper surface of the fixed frame through a rotating device, a pull rod is correspondingly arranged between the top of the lifting arm and the rear side of the grass mowing assembly, the top and bottom ends of the pull rod are respectively rotatably connected to the top of the lifting arm and the rear side of the grass mowing assembly through the rotating device, a telescopic adjustment assembly is correspondingly arranged between the middle part of the lifting arm and the upper surface of the fixed frame, the top and bottom ends of the telescopic adjustment assembly are respectively rotatably connected to the middle part of the lifting arm and the upper surface of the fixed frame through the rotating device, and an anti-start limit assembly is correspondingly arranged between the lower part of the lifting arm and the bottom end of the telescopic adjustment assembly.

[0006] As a preferred technical solution of the utility model, the anti-lifting limit assembly includes an anti-lifting hook, a spring, a V-shaped connecting rod and a clamping column. The clamping column is fixed to one side of the lower part of the lifting arm. The bottom end of the V-shaped connecting rod is rotatably connected to the upper surface of the fixing frame through a rotating device. The rear end of the V-shaped connecting rod is integrally provided with an anti-lifting hook that is movably clamped with the clamping column up and down. The front end of the V-shaped connecting rod is rotatably connected to the bottom end of the telescopic adjustment assembly through a rotating device. A spring is fixedly installed between the rear end bottom of the V-shaped connecting rod and the upper surface of the fixing frame.

[0007] As a preferred technical solution of the utility model, the grass raking assembly includes a connecting rod, a connecting cross rod and rake teeth. There are two connecting rods, and the rear ends of the two connecting rods are symmetrically rotated to the left and right through a rotating device and connected to the two ends of the front side of the fixed frame. The front ends of the two connecting rods are fixedly installed with a connecting cross rod, and the front side of the connecting cross rod is evenly distributed and fixedly installed with rake teeth. The bottom end of the pull rod is rotatably connected to the middle part of the rear side of the connecting cross rod through a rotating device.

[0008] As a preferred technical solution of the present utility model, the rotating device is a hinged part.

[0009] As a preferred technical solution of the present utility model, the self-propelled chassis is a four-wheel drive self-propelled chassis.

[0010] As a preferred technical solution of the utility model, the telescopic adjustment component is a hydraulic cylinder.

[0011] As a preferred technical solution of the utility model, a limiting block corresponding to the anti-hooking is fixedly installed on the outer end of the clamping column.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the self-propelled grass rake has a reasonable and practical structure, is easy to operate, and through the self-propelled chassis, does not require external mechanical traction when used for mowing grass, and there is no problem of inconvenient towing installation and disassembly, and can be convenient and flexible to turn and walk. Moreover, through the cooperation of the anti-lifting limit assembly with the lifting arm, pull rod and telescopic adjustment assembly, it is beneficial to prevent the lifting and limiting of the grass rake structure, which is beneficial to the stable use of the grass rake structure and well meets the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a side view of the utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the lifting arm of the utility model when viewed from above.

[0016] Figure 4 It is a structural schematic diagram of the anti-lift limit assembly of the utility model.

[0017] In the figure: self-propelled chassis 1, fixed frame 2, grass raking assembly 3, connecting rod 31, connecting cross bar 32, rake teeth 33, lifting arm 4, pull rod 5, telescopic adjustment assembly 6, anti-lifting limit assembly 7, anti-lifting hook 71, spring 72, V-shaped connecting rod 73, clamping column 8, limit block 9. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 The utility model provides a technical solution: a self-propelled grass raker, comprising a fixed frame 2 and a lifting arm 4, a self-propelled chassis 1 is correspondingly fixedly installed at the bottom of the fixed frame 2, through the self-propelled chassis 1, when raking grass, no external mechanical traction is required, there is no problem of inconvenient towing installation and disassembly, and the grass raking walking can be conveniently and flexibly turned, the front side of the fixed frame 2 is rotatably connected with a grass raking assembly 3 through a rotating device, the bottom end of the lifting arm 4 is rotatably connected to the upper surface of the fixed frame 2 through a rotating device, a pull rod 5 is correspondingly arranged between the top of the lifting arm 4 and the rear side of the grass raking assembly 3, the top and bottom ends of the pull rod 5 are respectively rotatably connected to the top of the lifting arm 4 and the rear side of the grass raking assembly 3 through the rotating device, a telescopic adjustment assembly 6 is correspondingly arranged between the middle part of the lifting arm 4 and the upper surface of the fixed frame 2, the top and bottom ends of the telescopic adjustment assembly 6 are respectively rotatably connected to the middle part of the lifting arm 4 and the upper surface of the fixed frame 2 through the rotating device, and an anti-start limit assembly 7 is correspondingly arranged between the lower part of the lifting arm 4 and the bottom end of the telescopic adjustment assembly 6

[0020] Furthermore, the anti-lifting limit assembly 7 includes an anti-lifting hook 71, a spring 72, a V-shaped connecting rod 73 and a clamping column 8. The clamping column 8 is fixed to one side of the lower part of the lifting arm 4. The bottom end of the V-shaped connecting rod 73 is rotatably connected to the upper surface of the fixing frame 2 through a rotating device. The rear end of the V-shaped connecting rod 73 is integrally provided with an anti-lifting hook 71 that is movably connected to the clamping column 8 up and down. The front end of the V-shaped connecting rod 73 is rotatably connected to the bottom end of the telescopic adjustment assembly 6 through a rotating device. A spring 72 is fixedly installed between the rear end bottom of the V-shaped connecting rod 73 and the upper surface of the fixing frame 2. Through the clamping connection between the anti-lifting hook 71 and the clamping column 8, the falling The grass raking component 3 in the grass raking operation plays the role of anti-lifting and limiting. When the grass raking component 3 needs to be raised and retracted, the telescopic adjustment component 6 is extended to drive the front end of the V-shaped connecting rod 73 to rotate downward, and at the same time drive the rear end of the V-shaped connecting rod 73 to rotate upward, thereby driving the anti-lifting hook 71 to rise and disengage from the blocking column 8. At this time, the telescopic adjustment component 6 continues to drive the upward rotation of the lifting arm 4 and the pull rod 5, thereby driving the grass raking component 3 to rotate upward and rise until it is off the ground and retracted. The above reverse operation can be performed to carry out the lowering and reset work of the grass raking component 3 and the lowering and reset anti-lifting limit of the anti-lifting limit component 7.

[0021] Furthermore, the grass raking assembly 3 includes a connecting rod 31, a connecting cross bar 32 and rake teeth 33. There are two connecting rods 31. The rear ends of the two connecting rods 31 are symmetrically rotated to the left and right through a rotating device and are connected to the two ends of the front side of the fixed frame 2. The front ends of the two connecting rods 31 are fixedly installed with a connecting cross bar 32. The front sides of the connecting cross bars 32 are evenly distributed and fixedly installed with rake teeth 33. The bottom end of the pull rod 5 is rotationally connected to the middle part of the rear side of the connecting cross bar 32 through a rotating device. Grass raking is performed by using the rake teeth 33 on the connecting cross bar 32. The grass raking assembly 3 is easily folded and lowered by rotating the connected connecting rods 31.

[0022] Furthermore, the rotating device is a hinged part, and its structure and working principle are existing mature technologies, which will not be described in detail here.

[0023] Furthermore, the self-propelled chassis 1 is a four-wheel drive self-propelled chassis, which can provide better self-propelled drive. Its structure and working principle are existing mature technologies and will not be described in detail here.

[0024] Furthermore, the telescopic adjustment component 6 is a hydraulic cylinder, and the telescopic adjustment component 6 is used to facilitate telescopic adjustment.

[0025] Furthermore, a limiting block 9 corresponding to the anti-lifting hook 71 is fixedly mounted on the outer end of the clamping column 8 , and the limiting block 9 assists the anti-lifting hook 71 in limiting and preventing it from falling off.

[0026] When using:

[0027] The self-propelled chassis 1 does not require external mechanical traction when mowing grass, and there is no problem of inconvenient towing installation and disassembly. The self-propelled chassis 1 can be used for convenient and flexible turning and walking. The anti-lifting hook 71 is connected with the clamping column 8 to prevent the grass raking component 3 from falling and mowing grass. When the grass raking component 3 needs to be raised and retracted, the telescopic adjustment component 6 is extended to drive the front end of the V-shaped connecting rod 73 to rotate downward, and at the same time drive the rear end of the V-shaped connecting rod 73 to rotate upward, thereby driving the anti-lifting hook 71 to rise and disengage from the clamping column 8. At this time, the telescopic adjustment component 6 continues to drive the upward rotation of the lifting arm 4 and the pull rod 5, thereby driving the grass raking component 3 to rotate upward and rise until it is off the ground and retracted. The above reverse operation can be performed to carry out the lowering, resetting and landing work of the grass raking component 3, as well as the lowering, resetting and anti-lifting limit of the anti-lifting limit component 7.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-propelled grass rake, comprising a fixed frame (2) and a lifting arm (4), characterized in that: A self-propelled chassis (1) is fixedly installed at the bottom of the fixed frame (2); a grass-raking assembly (3) is rotatably connected to the front side of the fixed frame (2) through a rotating device; the bottom end of the lifting arm (4) is rotatably connected to the upper surface of the fixed frame (2) through a rotating device; a pull rod (5) is correspondingly arranged between the top of the lifting arm (4) and the rear side of the grass-raking assembly (3); the top and bottom ends of the pull rod (5) are rotatably connected to the top of the lifting arm (4) and the rear side of the grass-raking assembly (3) through a rotating device; a telescopic adjustment assembly (6) is correspondingly arranged between the middle part of the lifting arm (4) and the upper surface of the fixed frame (2); the top and bottom ends of the telescopic adjustment assembly (6) are rotatably connected to the middle part of the lifting arm (4) and the upper surface of the fixed frame (2) through a rotating device; and an anti-lifting limit assembly (7) is correspondingly arranged between the lower part of the lifting arm (4) and the bottom end of the telescopic adjustment assembly (6).

2. The self-propelled grass rake according to claim 1, characterized in that: The anti-lifting limit assembly (7) comprises an anti-lifting hook (71), a spring (72), a V-shaped connecting rod (73) and a clamping column (8); the clamping column (8) is fixed to one side of the lower part of the lifting arm (4); the bottom end of the V-shaped connecting rod (73) is rotatably connected to the upper surface of the fixing frame (2) through a rotating device; the rear end of the V-shaped connecting rod (73) is integrally provided with an anti-lifting hook (71) that is movably clamped with the clamping column (8) up and down; the front end of the V-shaped connecting rod (73) is rotatably connected to the bottom end of the telescopic adjustment assembly (6) through a rotating device; and a spring (72) is fixedly installed between the bottom of the rear end of the V-shaped connecting rod (73) and the upper surface of the fixing frame (2).

3. The self-propelled grass rake according to claim 2, characterized in that: The grass raking assembly (3) comprises a connecting rod (31), a connecting cross rod (32) and rake teeth (33). There are two connecting rods (31). The rear ends of the two connecting rods (31) are symmetrically rotatably connected to the two ends of the front side of the fixed frame (2) through a rotating device. The front ends of the two connecting rods (31) are fixedly installed with a connecting cross rod (32). The front side of the connecting cross rod (32) is evenly distributed and fixedly installed with rake teeth (33). The bottom end of the pull rod (5) is rotatably connected to the middle part of the rear side of the connecting cross rod (32) through a rotating device.

4. The self-propelled grass rake according to claim 3, characterized in that: The rotating device is a hinged part.

5. The self-propelled grass rake according to claim 1, characterized in that: The self-propelled chassis (1) is a four-wheel drive self-propelled chassis.

6. The self-propelled grass rake according to claim 2, characterized in that: The telescopic adjustment component (6) is a hydraulic cylinder.

7. The self-propelled grass rake according to claim 2, characterized in that: A limiting block (9) corresponding to the anti-lifting hook (71) is fixedly mounted on the outer end of the clamping column (8).

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