Manual tilling depth adjusting mechanism and mini-tiller

Abstract

The utility model relates to a manual tilling depth adjusting mechanism and a mini-tiller, which comprise frames, a support shaft is arranged between the frames, a support is rotatably arranged on the support shaft, a rotary tiller is arranged at the tail end of the support, a pin shaft cylinder is fixedly arranged at one end of each frame, a locking disc is arranged on the support and corresponds to the pin shaft cylinder, and the pin shaft cylinder is fixedly arranged on the support. A pin shaft is movably installed in the pin shaft barrel, the tail end of the pin shaft is connected with an adjusting wire brake through a brake cable, the brake cable drives the pin shaft to be movably installed in a round hole formed in the locking disc, the adjusting wire brake is pushed and pulled, height adjustment of the mini-tiller is completed, an operator does not need to leave a mini-tiller carrier in the adjusting process, and height adjustment can be conducted at the same time with operation of the mini-tiller.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery equipment, in particular to a manual tillage depth adjustment mechanism. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The micro-tillage machine is powered by a small diesel engine or gasoline engine, and has the characteristics of light weight, small size and simple structure. The micro-tillage machine is widely used in dry land, paddy fields, orchards, etc. in plains, mountainous areas and hills.

[0004] At present, most agricultural machinery is equipped with a rotary tiller at the rear of the mobile carrier. The tilling depth adjustment of the micro-tiller is mainly achieved by a resistance member arranged at the rear of the micro-tiller. In the prior art, such as a tilling depth adjustment mechanism and a micro-tiller with publication number CN218788964U, when the tilling depth needs to be adjusted, the resistance member is turned to rotate so that the resistance member 2 overcomes the clamping force of the clamping member, thereby disengaging the limit groove from the positioning member, and the height position of the resistance member can be adjusted up and down to meet different tilling depth requirements. The existing solution for achieving adjustment through the resistance member requires stopping the micro-tiller and then turning the resistance member for adjustment. The start and stop of the micro-tiller takes time, which reduces the tillage efficiency of the micro-tiller. Utility Model Content

[0005] The utility model aims to provide a manual tillage depth adjustment mechanism and a micro-tillage machine, which can at least solve the technical problem that the tillage depth adjustment of the existing micro-tillage machine affects the working efficiency.

[0006] To achieve the above-mentioned purpose, the utility model proposes a manual tillage depth adjustment mechanism, including a frame, a support shaft is installed between the frames, a support is rotatably installed on the support shaft, a rotary tiller is installed at the end of the support, a pin shaft cylinder is fixedly installed at one end of the frame, a locking plate is installed on the support and corresponding to the pin shaft cylinder, a pin shaft is movably installed in the pin shaft cylinder, the end of the pin shaft is connected to the adjustment line brake through a brake line, and the brake line drives the pin shaft to be movably installed in the circular hole opened in the locking plate.

[0007] It is further configured that the locking disk is evenly distributed with a plurality of circular holes, a line connecting the centers of the circular holes is an arc, and a diameter of the pin shaft is smaller than a diameter of the circular holes.

[0008] It is further configured that the frame side beams are symmetrically mounted with support shaft cylinders, and the support shafts are rotatably mounted in the support shaft cylinders.

[0009] It is further configured that a rotary tillage transmission box is fixedly installed on the support, and a rotary tiller is installed at the end of the rotary tillage transmission box.

[0010] It is further configured that a pull rod is provided at one end of the support, and an adjustable wire brake is installed on the pull rod.

[0011] It is further configured that driving wheels are installed at both ends of the support shaft.

[0012] It is further configured that a mounting rod is arranged at the front end of the pin shaft cylinder, a handlebar is arranged inside the mounting rod, a brake wire brake is installed on the handlebar, and a guide wheel is installed below the handlebar.

[0013] It is further configured that a mounting seat is provided at the rear end of the pin shaft cylinder, and a vehicle seat is mounted on the mounting seat.

[0014] It is further configured that an engine is installed on the frame, and the engine is connected to a rotary tillage transmission box.

[0015] In addition, the utility model also provides a micro-tillage machine, comprising the manual tillage depth adjustment mechanism.

[0016] Beneficial effects of one or more of the above technical solutions:

[0017] While the tilling blade rotates and the carrier moves, one arm operates the pull rod, and then the brake wire pulls the pin out of the round hole of the locking disk. At the same time, the arm that presses the adjusting wire brake is lifted or the handle is pressed to make the tilling blade rotate along the carrier, thereby realizing the rotation of the rotary tiller around the micro-tiller. After rotation, release the adjusting wire brake, the pin enters the round hole of the locking disk, the micro-tiller is fixed, and the height adjustment is completed; the height adjustment of the rotary tiller can be completed with one hand. During the adjustment process, the operator does not need to leave the micro-tiller carrier, and the height adjustment can be performed simultaneously with the operation of the micro-tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the frame of the utility model;

[0021] Figure 3 It is a schematic diagram of the installation structure of the locking disk and the pin shaft of the utility model.

[0022] In the figure: 1 frame; 2 support shaft; 3 support; 4 rotary tiller; 5 pin shaft cylinder; 51 pin shaft; 6 locking plate; 61 round hole; 7 adjustment wire brake; 71 brake wire; 8 support shaft cylinder; 9 rotary tiller transmission box; 10 seat; 11 pull rod; 12 driving wheel; 13 mounting rod; 14 handlebar; 15 brake wire brake; 16 guide wheel; 17 engine; 18 mounting seat. DETAILED DESCRIPTION

[0023] The specific implementation of this embodiment is described below in conjunction with the accompanying drawings.

[0024] Reference Figure 1 and Figure 2 A manual tillage depth adjustment mechanism comprises a frame 1, a support shaft 2 is installed between the frames 1, a support 3 is rotatably installed on the support shaft 2, a rotary tiller 4 is installed at the end of the support 3, a pin shaft cylinder 5 is fixedly installed at one end of the frame 1, a locking plate 6 is installed on the support 3 and corresponding to the pin shaft cylinder 5, a pin shaft 51 is movably installed in the pin shaft cylinder 5, and the end of the pin shaft 51 is connected to the adjustment line gate 7 through the gate line 71, and the gate line 71 drives the pin shaft 51 to be movably installed in the circular hole 61 opened in the locking plate 6.

[0025] Reference Figure 3 The locking plate 6 is evenly distributed with a number of circular holes 61, and the line connecting the centers of the circular holes 61 is an arc. The arrangement of the arc ensures that the pin shaft 51 can correspond to the circular hole 61 after the locking plate 6 rotates with the support 3. The diameter of the pin shaft 51 is smaller than the diameter of the circular hole 61, ensuring that the pin shaft 51 can smoothly enter and exit the circular hole 61.

[0026] Reference Figure 2 The support shaft cylinder 8 is symmetrically installed on the side beam of the frame 1, and the support shaft 2 is rotatably installed in the support shaft cylinder 8. The support shaft 2 can be installed in the support shaft cylinder 8 using existing bearings to ensure the rotation of the support shaft 2.

[0027] A rotary tillage transmission box 9 is fixedly mounted on the support 3 , and a rotary tiller 4 is mounted at the end of the rotary tillage transmission box 9 .

[0028] A pull rod 11 is provided at one end of the support 3, and an adjusting wire brake 7 is installed on the pull rod 11. A brake wire 71 is installed in the adjusting wire brake 7 through a spring. When adjusting, the pull rod 11 is held by the palm of the hand to pinch the adjusting wire brake 7. At this time, the adjusting wire brake 7 pulls the brake wire 71, and the brake wire 71 pulls the pin 51 movably installed in the pin shaft tube 5, and the pin 51 is separated from the circular hole 61 of the locking disk 6. At this time, the support 3 can rotate around the supporting shaft 2 of the frame 1, and the wire brake pin 51 is released and rebounds into the circular hole 61 of the locking disk 6 under the action of the spring.

[0029] Driving wheels 12 are installed at both ends of the support shaft 2, and the support shaft 2 drives the two driving wheels 12 to rotate.

[0030] A mounting rod 13 is provided at the front end of the pin shaft cylinder 5, and a handlebar 14 is provided in the mounting rod 13. The handlebar 14 is movably mounted in a circular hole 61 provided in the mounting rod 13 to ensure the rotation of the handlebar 14, thereby ensuring the guiding function of the handlebar 14. A brake wire brake 15 is installed on the handlebar 14, and the brake wire brake 15 is connected to the driving wheel 12 through a brake wire 71, so that the driving wheel 12 is braked by the brake wire brake 15.

[0031] A Y-shaped bracket is installed below the handlebar 14, and a guide wheel 16 is installed in the bracket. The guide wheel 16 is installed in the guide bracket through a bearing. In this embodiment, the center of the guide wheel 16 and the driving wheel 12 are on the same straight line. A mounting seat 18 is provided at the rear end of the pin shaft cylinder, and the seat 10 is installed on the mounting seat 18.

[0032] An engine 17 is installed on the frame 1, and the engine 17 is connected to a rotary tillage transmission box 9. An existing diesel engine 17 is selected to transmit power to the rotary tillage transmission box 9 through an output shaft. The rotary tillage transmission box 9 is provided with a gearbox to transmit power to the rotary tiller 4 at the rear, driving the rotary tillage blade to rotate.

[0033] A micro-tillage machine includes a manual tillage depth adjustment mechanism, through which the distance between a rotary tiller and the soil is adjusted, and an engine 17 drives a driving wheel 12 to rotate to ensure the movement of the micro-tillage machine. The engine 17 transmits power to the rotary tiller of the rotary tillage machine 4 through a rotary tillage transmission box 9, driving the rotary tiller to rotate.

[0034] When making adjustments, hold the pull rod 11 with the palm of the hand to pinch the adjusting wire brake 7, at this time the adjusting wire brake 7 pulls the brake wire 71, the brake wire 71 pulls the pin 51 movably installed in the pin shaft tube 5, the pin 51 is disengaged from the circular hole 61 of the locking disk 6, at this time the support 3 can rotate around the supporting shaft 2 of the frame 1, and the wire brake pin 51 is released and rebounds into the circular hole 61 of the locking disk 6 under the action of the spring.

[0035] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A manual tillage depth adjustment mechanism, characterized in that: It includes a frame, a support shaft is installed between the frames, a support is rotatably installed on the support shaft, a rotary tiller is installed at the end of the support, a pin shaft cylinder is fixedly installed at one end of the frame, a locking disk is installed on the support and corresponding to the pin shaft cylinder, a pin shaft is movably installed in the pin shaft cylinder, the end of the pin shaft is connected to the adjusting wire brake through a brake wire, and the brake wire drives the pin shaft to be movably installed in the circular hole opened in the locking disk.

2. A manual tillage depth adjustment mechanism according to claim 1, characterized in that: The locking disk is evenly distributed with a plurality of circular holes, the line connecting the centers of the circular holes is an arc, and the diameter of the pin shaft is smaller than the diameter of the circular holes.

3. A manual tillage depth adjustment mechanism according to claim 1, characterized in that: The frame side beams are symmetrically mounted with support shaft cylinders, and the support shafts are rotatably mounted in the support shaft cylinders.

4. A manual tillage depth adjustment mechanism according to claim 1, characterized in that: A rotary tillage transmission box is fixedly installed on the support, and a rotary tiller is installed at the end of the rotary tillage transmission box.

5. The manual tillage depth adjustment mechanism according to claim 1, characterized in that: A pull rod is arranged at one end of the support, and an adjusting wire brake is installed on the pull rod.

6. A manual tillage depth adjustment mechanism according to claim 1, characterized in that: Driving wheels are installed at both ends of the support shaft.

7. The manual tillage depth adjustment mechanism according to claim 1, characterized in that: A mounting rod is arranged at the front end of the pin shaft cylinder, a handlebar is arranged inside the mounting rod, a brake wire brake is arranged on the handlebar, and a guide wheel is arranged below the handlebar.

8. The manual tillage depth adjustment mechanism according to claim 1, characterized in that: A mounting seat is arranged at the rear end of the pin shaft cylinder, and a vehicle seat is mounted on the mounting seat.

9. The manual tillage depth adjustment mechanism according to claim 1, characterized in that: An engine is installed on the frame, and the engine is connected to a rotary tillage transmission box.

10. A micro-tillage machine, characterized in that: It comprises a manual tillage depth adjustment mechanism as described in any one of claims 1 to 9.

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