Pull-type hydraulic self-powered driving harrow

Abstract

The utility model relates to the technical field of agricultural implements, in particular to a traction type hydraulic self-powered driven rake which comprises a frame used for being connected with a tractor, rake bodies connected to the periphery of the frame, a main power device installed on the frame, a hydraulic transfer case connected to the main power device and an oil pump installed on the hydraulic transfer case. An oil pipe is connected to the oil pump, and a branch power device used for being connected with the oil pipe is installed on the rake body. Power is transmitted through hydraulic pressure, flexible driving is carried out, a machine tool can be well protected if hard sundries are encountered, the oil pipe can be made of a soft pipe so that assembly layout can be more convenient and reasonable, the size of the driving harrow can be conveniently increased according to requirements, the rotating speed of harrow teeth can be more flexibly adjusted through hydraulic transmission, and the driving harrow can better adapt to different soil environments.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural farming tools, in particular to a traction type hydraulic automatic power driven harrow. Background Art

[0002] At present, the power driven harrow basically adopts the way of transmission shaft transmission to transfer power. The advantage of this structural form is that the power loss is small, but there are also certain defects. For example, since the transmission shaft is a hard connection, when encountering sundries, it is easy to cause damage to the working components, gearbox, transmission shaft and tractor.

[0003] In actual work, there are generally two insurance measures: one is to install friction plate insurance and camshaft insurance. However, this kind of transmission shaft often slips or burns out prematurely and excessively due to accidental reasons, so it is less used; the other is to adopt the insurance method of shear screws to protect. Because there are many sundries in the soil, occasionally after the insurance screw is cut off, the tractor driver cannot find it in time, resulting in the steel balls in the groove of the shear type transmission shaft flying out, so that the conduit and the fork fly out due to inertia, there is a safety hazard, and even cause injury accidents. Content of the Utility Model

[0004] In order to solve the problems existing in the above-mentioned prior art and facilitate safer harrowing operation, the utility model provides a traction type hydraulic automatic power driven harrow.

[0005] The traction type hydraulic automatic power driven harrow provided by the utility model adopts the following technical scheme:

[0006] A traction type hydraulic automatic power driven harrow includes a frame for connecting a tractor, harrow bodies are connected around the frame, a main power device is installed on the frame, a hydraulic power take-off box is connected to the main power device, an oil pump is installed on the hydraulic power take-off box, an oil pipe is connected to the oil pump, and a sub-power device for connecting with the oil pipe is installed on the harrow body.

[0007] By adopting the above technical scheme, hydraulic power is used for transmission, flexible drive is carried out. If hard sundries are encountered, the machine can be better protected. The oil pipe can adopt soft pipes, which can make the layout of components more convenient and reasonable, and the volume of the driven harrow can also be increased conveniently according to needs. The hydraulic transmission is more flexible in adjusting the rotational speed of the harrow teeth and can better adapt to different soil environments.

[0008] Optionally, a depth limiting wheel set is installed at the bottom of the frame.

[0009] By adopting the above technical scheme, the harrowing depth can be effectively controlled.

[0010] Optionally, harrow bodies are arranged on the left, right and rear sides of the frame, and the working directions between the harrow bodies are the same.

[0011] By adopting the above technical solution, three harrow bodies can be driven by the vehicle frame according to requirements, expanding the area of the harrow body in a single operation and improving the operation efficiency.

[0012] In summary, the utility model includes at least one of the following beneficial technical effects:

[0013] 1. Adopting hydraulic power transmission for flexible drive can better protect the machine in case of hard debris.

[0014] 2. The oil pipe can adopt soft pipes, which can make the layout of components more convenient and reasonable, and can also conveniently increase the volume of the drive harrow according to requirements.

[0015] 3. The hydraulic transmission can adjust the rotation speed of the harrow teeth more flexibly and can better adapt to different soil environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of a traction type hydraulic self-powered drive harrow according to an embodiment of the utility model.

[0017] Description of the reference numerals: 1, vehicle frame; 2, harrow body; 3, main power device; 4, hydraulic power distribution box; 5, oil pump; 6, oil pipe; 7, sub-power device; 8, depth-limiting wheel set. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the utility model in detail Figure 1 with reference to the accompanying drawings.

[0019] An embodiment of the utility model discloses a traction type hydraulic self-powered drive harrow. Referring to Figure 1 , the traction type hydraulic self-powered drive harrow includes a vehicle frame 1 for connecting with a tractor; three harrow bodies 2 are connected to the left, right and rear sides of the vehicle frame 1, and the three harrow bodies 2 are arranged side by side and have the same operation direction; a main power device 3 is installed on the vehicle frame 1, and the main power device 3 in this embodiment is an engine, and in other embodiments, a motor can also be selected, which is not limited herein.

[0020] Referring to Figure 1 , the output end of the main power device 3 is connected with a hydraulic power distribution box 4, three oil pumps 5 are installed on the output end of the hydraulic power distribution box 4, an oil pipe 6 is connected to the oil pump 5, and the oil pipe 6 adopts a flexible pipe to facilitate bending and deformation; a sub-power device 7 with a hydraulic motor and a gearbox is installed on the harrow body 2, the oil pipe 6 is connected with the sub-power device 7, and a depth-limiting wheel set 8 is also installed at the bottom of the vehicle frame 1.

[0021] The implementation principle of the traction type hydraulic automatic power driven harrow in the embodiment of the utility model is as follows: hydraulic transmission is adopted for flexible driving, and the machine can be well protected in case of hard sundries; the use of soft tubing for the tubing 6 can make the component layout more convenient and reasonable, and the overall volume of the driven harrow can be conveniently increased according to requirements. The hydraulic transmission is more flexible in adjusting the rotation speed of the harrow teeth and can better adapt to different soil environments.

[0022] The above are all the preferred embodiments of the utility model, and the protection scope of the utility model is not limited hereby. Therefore, all equivalent changes made according to the structure, shape and principle of the utility model shall be covered within the protection scope of the utility model.

Claims

1. A traction type hydraulic automatic power-driven harrow, characterized in that: It includes a frame (1) for connecting a tractor, a harrow body (2) is connected around the frame (1), a main power device (3) is installed on the frame (1), a hydraulic power take-off box (4) is connected to the main power device (3), an oil pump (5) is installed on the hydraulic power take-off box (4), a tubing (6) is connected to the oil pump (5), and a sub-power device (7) for connecting with the tubing (6) is installed on the harrow body (2).

2. The traction hydraulic automatic power-driven harrow according to claim 1, wherein: A depth-limiting wheel set (8) is installed at the bottom of the frame (1).

3. The traction hydraulic self-powered driving harrow according to claim 1 or 2, characterized in that: Harrow bodies (2) are arranged on both the left and right sides and the rear side of the frame (1), and the working directions between the harrow bodies (2) are the same.

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