tractor gearbox manipulator

Abstract

This utility model provides a tractor gearbox controller, relating to the field of agricultural machinery. The utility model includes a controller body and a flexible steel wire shaft. A control lever is installed through one side of the controller body, and a flexible outer sleeve is fixedly installed on the other side. The flexible steel wire shaft is slidably installed within the inner wall of the controller body and the inner wall of the flexible outer sleeve. By incorporating a lubrication device, after the control lever has been used for a period of time, an oil pump can be periodically activated to draw lubricating oil from the oil tank into the oil pipe and elastic guide frame, and then allow it to flow into the guide cavity on the controller body. Thus, when the control lever is adjusted and rotated, the lubricating oil is applied to the outer surface of the control lever, providing lubrication and maintenance. This reduces rotational friction between the controller body and the control lever, improves the operational flexibility and response speed of the control lever, facilitates adjustment and use, and ultimately improves the efficiency and safety of agricultural operations and extends the service life of the controller.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a tractor gearbox control device. Background Technology

[0002] The gearbox controller is a device used to control the gear shifting operation of a tractor gearbox. It allows the operator to select different speeds and torques as needed to adapt to different working environments and task requirements.

[0003] When controlling the speed of a tractor gearbox using a flexible shaft actuator, pulling the operating lever rotates it on the actuator body. This causes the gears and racks inside the actuator body to mesh, pulling the flexible shaft cable. The cable slides within a flexible outer sleeve, transmitting force to the shift fork shaft rocker arm at one end. The shift fork shaft rocker arm rotates around a fixed shaft in the gearbox, thus pushing the shift fork shaft laterally to achieve the adjustment effect. The gears and racks are fixedly mounted on one end of the operating lever and one end of the flexible shaft cable, respectively. Over time, the outer surface of the operating lever is prone to corrosion and aging, leading to rust. This increases rotational friction between the lever and the inner wall of the actuator body, affecting the lever's flexibility and response speed. This increased friction can cause uneven operation, difficulty shifting gears, and consequently, affect the tractor gearbox's adjustment effect, reducing agricultural operation efficiency and safety, and shortening the actuator's lifespan. Utility Model Content

[0004] The technical problem this invention aims to solve is that after prolonged use, the outer surface of the control lever is prone to corrosion and aging, resulting in rust. This increases the rotational friction between the control lever and the inner wall of the control body, affecting the lever's flexibility and response speed. This increased friction can lead to uneven operation, difficulty in shifting gears, and consequently affect the tractor gearbox's adjustment performance, reducing the efficiency and safety of agricultural operations and shortening the control lever's lifespan.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a tractor gearbox controller, including a controller body and a flexible steel wire. A control lever is installed through one side of the controller body, and a flexible outer sleeve is fixedly installed on one side of the controller body. The flexible steel wire is slidably installed in the inner wall of the controller body and the inner wall of the flexible outer sleeve. One end of the flexible steel wire is connected to the outer surface of one end of the control lever by means of a gear and a rack. A lubrication device is provided between the outer surface of one end of the control lever and the inner walls of both ends of the controller body. The lubrication device can inject lubricating oil into an oil tank, and then periodically start an oil pump to draw the lubricating oil in the oil tank into an oil pipe and an elastic guide frame, and then let it flow into the guide cavity of the controller body. In this way, when the control lever is adjusted and rotated, the lubricating oil will be coated on the outer surface of the control lever, lubricating and maintaining its surface, thereby reducing the rotational friction between the two and facilitating adjustment.

[0006] Preferably, the lubrication device includes an oil tank, wherein a limiting mechanism is provided between one side of the oil tank and one side of the manipulator body, and both ends of the manipulator body are provided with flow guiding cavities, the inner walls of the flow guiding cavities being symmetrically provided with circular holes; an elastic flow guiding frame, wherein the outer surface of the elastic flow guiding frame is fixedly installed on one side of the oil tank, the inner wall of the elastic flow guiding frame is sleeved on the outer surface of one end of the manipulator body, and both ends are respectively inserted into the inner wall of the circular holes; an oil pump, wherein the inlet of the oil pump is installed through one side of the oil tank; and an oil pipe, wherein both ends of the oil pipe are respectively installed through one side of the elastic flow guiding frame and the outlet of the oil pump.

[0007] The effect achieved by the above components is as follows: By setting up a lubrication device, when using the flexible shaft type actuator to control the speed of the tractor gearbox, the oil tank is first fitted onto the outer surface of one end of the actuator body using an elastic guide frame, with both ends inserted into the inner walls of two round holes for fixation, connecting the oil tank to the guide cavity. Then, a limiting mechanism is used for secondary limiting and fixation. Lubricating oil is then injected into the oil tank. During speed adjustment, the operating lever is pulled to rotate on the actuator body, causing the gear and rack inside the actuator body 1 to mesh. This pulls the flexible shaft wire, causing it to slide within the flexible outer sleeve, transmitting force to the shift fork shaft rocker arm at one end. The shift fork shaft rocker arm rotates around a fixed shaft in the gearbox, thereby pushing the shift fork shaft inside the gearbox to move laterally to achieve the adjustment control effect. Here, the gear and rack are respectively fixedly installed on the outer surface of one end of the operating lever and one end of the flexible shaft wire. After the joystick has been used for a period of time, the oil pump can be started periodically to draw lubricating oil from the oil tank into the oil pipe and flexible guide frame, and then let it flow into the guide cavity of the joystick body. In this way, when the joystick is adjusted and rotated, the lubricating oil is applied to the outer surface of the joystick, which lubricates and maintains the surface, thereby reducing the rotational friction between the joystick body and the joystick, improving the joystick's operational flexibility and response speed, facilitating adjustment and use, and thus improving the efficiency and safety of agricultural operations, and extending the service life of the joystick.

[0008] Preferably, the lubrication device further includes two sealing blocks, wherein the inner walls of the sealing blocks are fixedly installed on the outer surfaces of both ends of the elastic guide frame, and are inserted into the inner wall of the circular hole along with one end of the elastic guide frame.

[0009] The effect achieved by the above components is that by setting the sealing block, the gap between the two ends of the elastic guide frame and the round hole can be sealed and blocked, so that when the lubricating oil is guided, it is not easy to overflow from the round hole.

[0010] Preferably, a plurality of circular rollers are installed through the inner wall of the flow guide cavity, wherein the outer surface of the circular rollers is in rolling connection with the outer surface of the control lever.

[0011] The effect achieved by the above components is as follows: by setting up the circular roller, the amount of lubricating oil discharged from the guide cavity can be reduced, so that when the control lever is rotated, it will drive the circular roller to rotate, thereby bringing out the lubricating oil inside the guide cavity and applying it to the control lever for lubrication. When the circular roller is not rotating, the lubricating oil is not easy to flow out, thus avoiding waste.

[0012] Preferably, several sponge blocks are fixedly installed on the inner walls of both ends of the main body of the manipulator, wherein several sponge blocks and several circular rollers are distributed in an alternating manner.

[0013] The effect achieved by the above components is that by setting up the sponge block, the lubricating oil applied to the control lever can be spread evenly, and at the same time, excess lubricating oil can be absorbed to prevent lubricating oil loss and reduce waste.

[0014] Preferably, the limiting mechanism includes a bracket, wherein one side of the bracket is fixedly mounted on one side of the manipulator body; a rotating rod, wherein one end of the rotating rod is rotatably mounted on one side of the bracket, and one side abuts against one side of the oil tank; and a torsion spring, wherein the inner wall of the torsion spring is sleeved on the outer surface of one end of the rotating rod, and both ends are fixedly mounted on one side of the bracket and one side of the rotating rod, respectively.

[0015] The effect achieved by the above components is as follows: by setting a limiting mechanism, before installing the oil tank, the rotating rod is rotated to a certain angle, causing the torsion spring to deform. Then, the oil tank is fitted onto the outer surface of one end of the main body of the controller with the help of the elastic guide frame, and both ends are inserted into the round holes for fixation. At this time, the rotating rod is released, and under the reset action of the torsion spring, one end abuts against and is stuck on one side of the oil tank, limiting and fixing the oil tank on one side of the main body of the controller. This ensures that the oil tank will not be displaced due to vibration or external force during use, which facilitates lubrication and maintenance, thereby ensuring the overall performance and durability of the tractor gearbox controller.

[0016] Preferably, the limiting mechanism further includes a magnet block, wherein one side of the magnet block is fixedly installed on one side of the oil tank, and the rotating rod is made of iron, wherein one side of the magnet block and one side of the rotating rod are magnetically attracted to each other.

[0017] The effect achieved by the above components is as follows: by setting up a magnetic block, when the rotating rod returns to its original position against one side of the oil tank with the help of the torsion spring, it will be attracted and fixed by the magnetic block for a second time, making its position on the oil tank more secure. In this way, the oil tank is less likely to shake during the use of the main body of the controller, thus improving the stability of use.

[0018] The beneficial effects of this utility model are: By incorporating a lubrication system, when controlling the speed of the tractor gearbox using a flexible shaft actuator, the oil tank is first fitted onto the outer surface of one end of the actuator body using an elastic guide frame. Both ends are then inserted into the inner walls of two circular holes, connecting the inside of the oil tank to the inside of the guide cavity. A limiting mechanism is then used for secondary limiting and fixation. Lubricating oil is then injected into the oil tank. After the actuator lever has been used for a period of time, the oil pump can be periodically activated to draw lubricating oil from the tank into the oil pipe and elastic guide frame, allowing it to flow into the guide cavity on the actuator body. This way, when the actuator lever is adjusted and rotated, lubricating oil is applied to its outer surface, providing lubrication and maintenance. This reduces rotational friction between the actuator body and the actuator lever, improving the lever's operational flexibility and response speed, facilitating adjustment and use, and ultimately increasing the efficiency and safety of agricultural operations and extending the actuator's lifespan. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the main body of the manipulator of this utility model; Figure 3 for Figure 2 An enlarged 3D structural diagram at point A in the middle; Figure 4 This is a three-dimensional structural diagram of the flexible outer sleeve of this utility model; Figure 5 for Figure 4 A three-dimensional schematic diagram of a local structure; Figure 6 This is a three-dimensional structural diagram of the fuel tank of this utility model.

[0022] Legend: 1. Main body of the controller; 2. Lubrication device; 3. Control lever; 4. Flexible outer sleeve; 5. Flexible shaft steel wire; 21. Guide cavity; 22. Circular hole; 23. Oil tank; 24. Elastic guide frame; 25. Oil pump; 26. Oil pipe; 27. Limiting mechanism; 271. Bracket; 272. Rotating rod; 273. Magnet block; 274. Torsion spring; 28. Sealing block; 29. ​​Circular roller; 210. Sponge block. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Figure 1-6 The tractor gearbox controller shown includes a controller body 1 and a flexible steel wire 5. A control lever 3 is installed through one side of the controller body 1, and a flexible outer sleeve 4 is fixedly installed on one side of the controller body 1. The flexible steel wire 5 is slidably installed in the inner wall of the controller body 1 and the inner wall of the flexible outer sleeve 4. One end of the flexible steel wire 5 is connected to the outer surface of one end of the control lever 3 by means of a gear and a rack. A lubrication device 2 is provided between the outer surface of one end of the control lever 3 and the inner walls of both ends of the controller body 1. The lubrication device 2 can inject lubricating oil into the oil tank 23. Then, the oil pump 25 is periodically started to draw the lubricating oil in the oil tank 23 into the oil pipe 26 and the elastic guide frame 24, and then let it flow into the guide cavity 21 on the controller body 1. In this way, when the control lever 3 is adjusted and rotated, the lubricating oil will be coated on the outer surface of the control lever 3 to lubricate and maintain its surface, thereby reducing the rotational friction between the two and facilitating adjustment.

[0026] Figure 1-6The lubrication device 2 shown includes an oil tank 23, wherein a limit mechanism 27 is provided between one side of the oil tank 23 and one side of the manipulator body 1, and both ends of the manipulator body 1 are provided with guide cavities 21, and the inner walls of the guide cavities 21 are symmetrically provided with circular holes 22; an elastic guide frame 24, wherein the outer surface of the elastic guide frame 24 is fixedly installed on one side of the oil tank 23, the inner wall of the elastic guide frame 24 is sleeved on the outer surface of one end of the manipulator body 1, and both ends are respectively inserted into the inner walls of the circular holes 22; an oil pump 25 (model WCB-30), wherein the inlet of the oil pump 25 is installed through one side of the oil tank 23; and an oil pipe 26, wherein both ends of the oil pipe 26 are respectively installed through one side of the elastic guide frame 24 and the outlet of the oil pump 25. By setting up the lubrication device 2, when using the flexible shaft type controller to control the speed of the tractor gearbox, the oil tank 23 is first fitted onto the outer surface of one end of the controller body 1 with the help of the elastic guide frame 24, so that its two ends are respectively inserted into the inner walls of the two round holes 22 and fixed, connecting the inside of the oil tank 23 with the inside of the guide cavity 21. Then, the limiting mechanism 27 is used for secondary limiting and fixing. Then, lubricating oil is injected into the inside of the oil tank 23. When adjusting the speed, the operating lever is pulled to rotate on the controller body 1, which can drive the gear rack inside the controller body 1 to mesh, thereby pulling the flexible shaft wire 5, so that the flexible shaft wire 5 slides in the flexible outer sleeve 4, and transmits the force to the shift fork shaft rocker arm at one end. The shift fork shaft rocker arm rotates around the fixed shaft in the gearbox, thereby pushing the shift fork shaft in the gearbox to move laterally to achieve the effect of adjustment and control. Here, the gear rack is respectively fixedly installed on the outer surface of one end of the operating lever 3 and one end of the flexible shaft wire 5. After the joystick 3 has been used for a period of time, the oil pump 25 can be started periodically to draw the lubricating oil in the oil tank 23 into the oil pipe 26 and the elastic guide frame 24, and then let it flow into the guide cavity 21 on the control body 1. In this way, when the joystick 3 is adjusted and rotated, the lubricating oil is applied to the outer surface of the joystick 3 to lubricate and maintain its surface, thereby reducing the rotational friction between the control body 1 and the joystick 3, improving the operational flexibility and response speed of the joystick 3, facilitating adjustment and use, and thus improving the efficiency and safety of agricultural operations and the service life of the control device.

[0027] Figure 1-6 The lubrication device 2 shown also includes two sealing blocks 28, wherein the inner walls of the sealing blocks 28 are fixedly installed on the outer surfaces of both ends of the elastic guide frame 24, and are inserted into the inner wall of the round hole 22 along with one end of the elastic guide frame 24. By setting the sealing blocks 28, the gap between the two ends of the elastic guide frame 24 and the round hole 22 can be sealed and plugged, so that it is not easy for lubricating oil to overflow from the round hole 22 when it is guiding the flow.

[0028] Figure 1-6The inner wall of the guide cavity 21 shown is fitted with several circular rollers 29, the outer surfaces of which are in rolling contact with the outer surface of the control lever 3. By using the circular rollers 29, the amount of lubricating oil discharged from the guide cavity 21 can be reduced. When the control lever 3 rotates, the circular rollers 29 rotate, thereby carrying out the lubricating oil inside the guide cavity 21 and applying it to the control lever 3 for lubrication. When the circular rollers 29 are not rotating, the lubricating oil is less likely to flow out, avoiding waste. Several sponge blocks 210 are fixedly installed on the inner walls of both ends of the control body 1, with the sponge blocks 210 and the circular rollers 29 arranged in an alternating pattern. The sponge blocks 210 can evenly spread the lubricating oil on the control lever 3 and absorb excess lubricating oil, preventing oil loss and reducing waste.

[0029] Figure 1-6 The limiting mechanism 27 shown includes a bracket 271, one side of which is fixedly mounted on one side of the manipulator body 1; a rotating rod 272, one end of which is rotatably mounted on one side of the bracket 271 and abuts against one side of the oil tank 23; and a torsion spring 274, the inner wall of which is sleeved on the outer surface of one end of the rotating rod 272 and both ends are fixedly mounted on one side of the bracket 271 and one side of the rotating rod 272, respectively. By setting a limiting mechanism 27, before installing the oil tank 23, the rotating rod 272 is rotated to a certain angle, causing the torsion spring 274 to deform. Then, after the oil tank 23 is fitted onto the outer surface of one end of the controller body 1 with the help of the elastic guide frame 24, and both ends are inserted into the round holes 22 for fixation, the rotating rod 272 is released. Under the reset action of the torsion spring 274, one end of the rotating rod abuts against and is stuck on one side of the oil tank 23, thus limiting and fixing the oil tank 23 to one side of the controller body 1. This ensures that the oil tank 23 will not be displaced due to vibration or external force during use, facilitating lubrication and maintenance, and thus ensuring the overall performance and durability of the tractor gearbox controller. The limiting mechanism 27 also includes a magnet 273, one side of which is fixedly installed on one side of the oil tank 23. The rotating rod 272 is made of iron, and one side of the magnet 273 is magnetically attracted to one side of the rotating rod 272. By setting up a magnet 273, when the rotating rod 272 is reset and abuts against one side of the oil tank 23 with the help of the torsion spring 274, it will be attracted and fixed again by the magnet 273, making it more firmly positioned against the oil tank 23. In this way, the oil tank 23 is less likely to shake during the use of the controller body 1, thus improving the stability of use.

[0030] Working principle: When controlling the speed of the tractor gearbox using the flexible shaft actuator, first rotate the lever 272 to a certain angle, causing the torsion spring 274 to deform. Then, the oil tank 23 is fitted onto the outer surface of one end of the actuator body 1 with the help of the elastic guide frame 24, so that its two ends and the sealing block 28 are respectively inserted into the inner walls of the two round holes 22 and fixed, connecting the inside of the oil tank 23 with the inside of the guide cavity 21. Then, release the lever 272, so that under the reset action of the torsion spring 274, one end is attracted and stuck to one side of the oil tank 23 by the magnet block 273, limiting and fixing the oil tank 23. The lever is fixed on the main body 1 of the control unit. Then, lubricating oil is injected into the oil tank 23. When adjusting the speed, the control lever is pulled to rotate on the main body 1 of the control unit. This can drive the gear and rack inside the main body 1 to mesh, thereby pulling the flexible shaft wire 5 and making it slide inside the flexible outer sleeve 4. The force is transmitted to the shift fork shaft rocker arm at one end. The shift fork shaft rocker arm rotates around the fixed shaft in the gearbox, thereby pushing the shift fork shaft in the gearbox to move laterally to achieve the adjustment control effect. Here, the gear and rack are respectively fixed on the outer surface of one end of the control lever 3 and one end of the flexible shaft wire 5. After the control lever 3 has been used for a period of time, the oil pump 25 can be started periodically to draw the lubricating oil from the oil tank 23 into the oil pipe 26 and the elastic guide frame 24, and then let it flow into the guide cavity 21 on the control body 1. When the control lever 3 is adjusted and rotated, it will drive the roller 29 to rotate, thereby bringing out the lubricating oil inside the guide cavity 21 and applying it to the control lever 3 for lubrication. At the same time, several sponge blocks 210 set inside the control body 1 can spread the lubricating oil on the control lever 3 evenly, and can also absorb the excess lubricating oil to prevent lubricating oil loss and reduce waste. This reduces the rotational friction between the control body 1 and the control lever 3, improves the operational flexibility and response speed of the control lever 3, facilitates adjustment and use, and thus improves the efficiency and safety of agricultural operations and the service life of the control device.

[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tractor gearbox controller, comprising a controller body (1) and a flexible steel wire shaft (5), characterized in that: A control lever (3) is installed through one side of the control body (1). A flexible outer tube (4) is fixedly installed on one side of the control body (1). The flexible shaft wire (5) is slidably installed in the inner wall of the control body (1) and the inner wall of the flexible outer tube (4). One end of the flexible shaft wire (5) is connected to the outer surface of one end of the control lever (3) by means of gears and racks. A lubrication device (2) is provided between the outer surface of one end of the control lever (3) and the inner walls of both ends of the control body (1). The lubrication device (2) can inject lubricating oil into the oil tank (23). Then, the oil pump (25) is started periodically to draw the lubricating oil in the oil tank (23) into the oil pipe (26) and the elastic guide frame (24), and then let it flow into the guide cavity (21) on the control body (1). In this way, when the control lever (3) is adjusted and rotated, the lubricating oil will be coated on the outer surface of the control lever (3).

2. The tractor gearbox controller according to claim 1, characterized in that: The lubrication device (2) includes an oil tank (23), wherein a limit mechanism (27) is provided between one side of the oil tank (23) and one side of the manipulator body (1), and a guide cavity (21) is provided inside both ends of the manipulator body (1), and circular holes (22) are symmetrically provided on the inner wall of the guide cavity (21). The elastic guide frame (24) is fixedly installed on one side of the oil tank (23) on the outer surface of the elastic guide frame (24). The inner wall of the elastic guide frame (24) is sleeved on the outer surface of one end of the manipulator body (1), and both ends are respectively inserted into the inner wall of the round hole (22). Oil pump (25), wherein the inlet of oil pump (25) is installed through one side of oil tank (23); Oil pipe (26), wherein the two ends of oil pipe (26) are respectively installed through one side of elastic guide frame (24) and the outlet of oil pump (25).

3. The tractor gearbox controller according to claim 2, characterized in that: The lubrication device (2) also includes two sealing blocks (28), wherein the inner wall of the sealing block (28) is fixedly installed on the outer surfaces of both ends of the elastic guide frame (24), and one end of the elastic guide frame (24) is inserted into the inner wall of the round hole (22).

4. The tractor gearbox controller according to claim 2, characterized in that: The inner wall of the guide cavity (21) is fitted with several circular rollers (29), wherein the outer surface of the circular rollers (29) is in rolling connection with the outer surface of the control lever (3).

5. The tractor gearbox controller according to claim 4, characterized in that: Several sponge blocks (210) are fixedly installed on the inner walls of both ends of the main body (1) of the manipulator, and the sponge blocks (210) and the rollers (29) are distributed in an alternating manner.

6. The tractor gearbox controller according to claim 2, characterized in that: The limiting mechanism (27) includes a bracket (271), wherein one side of the bracket (271) is fixedly mounted on one side of the manipulator body (1); Rotary rod (272), wherein one end of the rotating rod (272) is rotatably mounted on one side of the bracket (271), and one side abuts against one side of the oil tank (23); A torsion spring (274) is fitted on the outer surface of one end of a rotating rod (272), and both ends are fixedly installed on one side of a bracket (271) and one side of a rotating rod (272), respectively.

7. The tractor gearbox controller according to claim 6, characterized in that: The limiting mechanism (27) also includes a magnet (273), one side of which is fixedly installed on one side of the oil tank (23), and the rotating rod (272) is made of iron, wherein one side of the magnet (273) and one side of the rotating rod (272) are magnetically attracted.

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