An electric actuator for agricultural machinery braking

Abstract

This utility model discloses an electric push rod mechanism for agricultural machinery braking, including a push rod fixing device, a crankshaft fixing device, an electric brake push rod, a crankshaft connecting device, a crankshaft, a mechanical connecting rod, a brake connecting rod, and a drum brake disc. The electric push rod mechanism provides power in both positive and negative directions via voltage. The lifting rod at the front end of the electric brake push rod transmits power to the crankshaft connecting device, which then drives the crankshaft to rotate, transmitting power to the mechanical connecting rod. The mechanical connecting rod then transmits power to the brake connecting rod, which in turn transmits power to the drum brake disc. The drum brake disc can achieve braking effect according to the movement state of the push rod, thereby improving the safety and efficiency of agricultural machinery braking.

Description

Technical Field

[0001] This utility model relates to agricultural machinery mechanisms, and more particularly to an electric push rod mechanism for realizing agricultural machinery braking. Background Technology

[0002] Existing mechanisms for braking agricultural machinery typically employ either hydraulic braking systems or mechanical linkage systems. These traditional designs generally consist of a brake pedal, a brake cylinder, and a brake actuator. In hydraulic braking systems, fluid pressure is used to actuate the brake actuator, thereby achieving braking. Mechanical linkage systems, on the other hand, rely on the physical movement of levers to apply braking force. Traditional agricultural machinery braking systems suffer from problems such as low braking efficiency and slow response speed. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an electric push rod mechanism for agricultural machinery braking that can improve braking efficiency, quickly respond to braking commands, reduce operating costs, and improve the reliability and stability of agricultural machinery.

[0004] The technical solution adopted in this utility model is:

[0005] This utility model relates to an electric push rod mechanism for agricultural machinery braking. The electric push rod mechanism for agricultural machinery braking includes a crankshaft fixing device. The crankshaft fixing device includes a body. The left and right bottom walls of the body are respectively fixedly connected to the top of a rib plate. A crankshaft connecting device includes three hollow rotating shafts arranged coaxially at intervals. The middle hollow rotating shaft is located below the bottom wall of the body between the left and right rib plates, and the two hollow rotating shafts on both sides are located on the outer sides of the two rib plates. The outer ends of the two hollow rotating shafts and the middle hollow rotating shaft are respectively fixedly connected to the upper end of a guard plate. A crankshaft passes through the connecting holes on the left and right rib plates and the shaft holes of the three hollow rotating shafts. The crankshaft is fixedly connected to the shaft holes and rotatably connected to the connecting holes on the rib plates. The lower parts of the left and right guard plates are each rotatably connected to the front end of a mechanical connecting rod, and the rear end of each mechanical connecting rod is rotatably connected to the lower end of a brake connecting rod.

[0006] Each of the aforementioned brake connecting rods has an internal gear hole at its top, and the upper part of the internal gear hole has a notch. Each internal gear hole meshes with an external gear on the drum brake disc of the agricultural machinery. A screw passing through the notch of the internal gear hole on this side clamps the notch to keep the external gear inserted into the internal gear hole meshing with the internal gear hole. The end of the telescopic rod of the electric brake push rod is rotatably connected to the lower part of the guard plate in the middle. A push rod fixing device is rotatably connected to the electric brake push rod on the side opposite to the telescopic rod. The rotating hollow shaft and the crankshaft are arranged parallel to each other and perpendicular to each other with the main drive shaft of the agricultural machinery.

[0007] The beneficial effects of this utility model are:

[0008] 1. Improved braking efficiency: The electric push rod mechanism can quickly respond to braking commands and realize the braking function, which improves the braking efficiency of agricultural machinery, reduces the delay time in the braking process, and enhances the efficiency and safety of operation.

[0009] 2. Enhanced safety: The electric push rod mechanism can start and stop quickly, effectively improving the safety of agricultural machinery, reducing the possibility of accidents, and ensuring the safety of operators and equipment.

[0010] 3. Energy saving and environmental protection: The electric push rod mechanism has the characteristics of high efficiency and high braking efficiency, which can reduce energy consumption, conform to the development trend of energy saving and environmental protection, and help reduce the impact on the environment.

[0011] 4. Simple structure: The electric push rod mechanism has a simple structure, is easy to install and maintain, reduces the cost of use, improves the reliability and stability of agricultural machinery, and reduces the time and cost of maintenance and repair. Attached Figure Description

[0012] Figure 1 This is an exploded view of the electric push rod mechanism for agricultural machinery braking according to this utility model;

[0013] Figure 2 This is a perspective view of the electric push rod mechanism for agricultural machinery braking according to this utility model;

[0014] Figure 3 This is a perspective view of the electric push rod mechanism for agricultural machinery braking according to this utility model from another angle. Detailed Implementation

[0015] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0016] As shown in the attached figure, this utility model is an electric push rod mechanism for agricultural machinery braking, including a crankshaft fixing device 2. The crankshaft fixing device 2 includes a body, and the left and right bottom walls of the body are respectively fixedly connected to the top of a rib plate. During use, the top of the body and the main body of the agricultural machinery are integrated.

[0017] A crankshaft connecting device 4 includes three hollow rotating shafts arranged coaxially at left and right intervals. The middle hollow rotating shaft is located below the bottom wall of the main body between the left and right ribs, while the two hollow rotating shafts on the sides are located on the outer sides of the two ribs respectively. The outer ends of the two hollow rotating shafts on the sides and the middle hollow rotating shaft are fixedly connected to the upper end of a guard plate. A crankshaft 5 passes through the connecting holes on the left and right ribs and the shaft holes of the three hollow rotating shafts. The crankshaft is fixedly connected to the shaft holes and rotatably connected to the connecting holes on the ribs. The structure in which the crankshaft is fixedly connected to the shaft holes can be achieved by an interference fit or by a fastening pin passing through a pin hole opened on the hollow shaft to fix the crankshaft to the hollow rotating shaft.

[0018] The lower parts of the left and right side guard plates are each rotatably connected to the front end of a mechanical connecting rod 6, and the rear end of each mechanical connecting rod 6 is rotatably connected to the lower end of a brake connecting rod 7. The structure in which the lower parts of the left and right side guard plates are rotatably connected to the front end of a mechanical connecting rod 6 and the rear end of each mechanical connecting rod 6 is rotatably connected to the lower end of a brake connecting rod 7 can be connected by pins.

[0019] Each brake connecting rod 7 has an internal gear hole at its top, with a notch at the top. Each internal gear hole meshes with an external gear on an existing drum brake disc 8 on agricultural machinery. A screw passing through the notch of the internal gear hole clamps the notch, ensuring that the external gear inserted into the internal gear hole remains engaged with it. The end of the telescopic rod of the electric brake push rod 3 is rotatably connected to the lower part of the guard plate in the middle. A push rod fixing device 1 is rotatably connected to the electric brake push rod on the opposite side of the telescopic rod. The rotatable connection structure between the electric brake push rod 3 and the push rod fixing device can be as follows: the push rod fixing device 1 includes a flat plate, with a flat plate ear plate connected to the left and right sides of the bottom wall of the flat plate, and a push rod ear plate provided on the left and right sides of the electric brake push rod. The two flat plate ear plates are positioned between the two push rod ear plates and connected by a pin. During use, the push rod fixing device 1 is used to connect to the main body of the agricultural machinery using bolts.

[0020] The rotating hollow shaft and crankshaft are arranged parallel to each other and perpendicular to each other with the main drive shaft of the agricultural machinery.

[0021] The working process of this device is as follows:

[0022] By controlling the positive and negative directions of the voltage, the telescopic rod at the front end of the electric brake push rod 3 is raised and lowered. The raising and lowering of the telescopic rod at the front end of the electric brake push rod 3 drives the crankshaft connecting device 4 to rotate. The crankshaft connecting device drives the crankshaft 5 to rotate. The crankshaft connecting device 4 drives the mechanical connecting rod 6 to reciprocate back and forth. The mechanical connecting rod 6 drives the brake connecting rod 7 to swing left and right and rotate around the central axis of the drum brake disc 8. The rotation of the brake connecting rod 7 drives the external gear of the drum brake disc 8 to rotate, so as to achieve the purpose of braking and releasing the agricultural machinery drum brake disc.

[0023] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and these all fall within the protection scope of the present invention.

Claims

1. An electric actuator mechanism for braking agricultural machinery, characterized in that: The device includes a crankshaft fixing device (2), which includes a body. The bottom left and right walls of the body are fixedly connected to the top of a rib plate. A crankshaft connecting device (4) includes three rotating hollow shafts arranged coaxially at intervals. The middle rotating hollow shaft is located below the bottom wall of the body between the left and right rib plates, and the two rotating hollow shafts are located on the outside of the two rib plates. The outer ends of the two rotating hollow shafts and the middle rotating hollow shaft are fixedly connected to the upper end of a guard plate. A crankshaft (5) passes through the connecting holes on the left and right rib plates and the shaft holes of the three rotating hollow shafts. The crankshaft is fixedly connected to the shaft holes and rotatably connected to the connecting holes on the rib plates. The lower parts of the left and right guard plates are rotatably connected to the front end of a mechanical connecting rod (6), and the rear end of each mechanical connecting rod is rotatably connected to the lower end of a brake connecting rod (7). Each of the brake connecting rods has an internal gear hole at its top, and the upper part of the internal gear hole has a notch. Each internal gear hole meshes with the external gear on the drum brake disc (8) of the agricultural machinery. The notch is clamped by a screw passing through the notch of the internal gear hole on this side so that the external gear inserted into the internal gear hole keeps meshing with the internal gear hole. The end of the telescopic rod of the electric brake push rod (3) is rotatably connected to the lower part of the guard plate in the middle. A push rod fixing device (1) is rotatably connected to the electric brake push rod on the side opposite to the telescopic rod. The rotating hollow shaft and the crankshaft are arranged parallel to each other and perpendicular to each other with the main drive shaft of the agricultural machinery.

2. The electric push rod mechanism for agricultural machinery braking according to claim 1, characterized in that: The rotating connection structure between the electric brake push rod (3) and the push rod fixing device is as follows: the push rod fixing device includes a flat plate, and a flat plate ear plate is connected to the left and right sides of the bottom wall of the flat plate respectively. A push rod ear plate is provided on the left and right sides of the electric brake push rod respectively. The two flat plate ear plates are set between the two push rod ear plates and connected by a pin.

Images