Cycloid hydraulic motor with brake device

Abstract

The utility model discloses a cycloid hydraulic motor with a brake device, which comprises an output shaft, a clamp spring, a first bearing, a sealing ring, a friction plate component, a piston component, a disc spring, a rear partition plate, a second bearing, a stator and rotor component, a valve disc and a rear shell component, a spline is arranged in the middle of the output shaft and fixedly connected with the friction plate assembly. The piston assembly is connected with the friction plate assembly in a sliding fit mode and controlled by the oil port oil supply system to be connected with the disc spring, and the disc spring is connected with the oil port through a pipeline. The rear shell assembly is fixedly connected with the stator and rotor assembly through a valve disc, and the valve disc is connected with an oil distribution system of the motor. Therefore, the problem that reactive force cannot be rapidly inhibited due to lack of an effective brake device in the background technology is solved, rotation or inclination of the output shaft of the motor is prevented, the stability and the working efficiency of equipment are improved, and the device is particularly suitable for high-frequency reverse rotation and high-load working environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to a swing motor technical field especially involves a swing hydraulic motor with brake device. BACKGROUND

[0002] In the hydraulic system, the swing hydraulic motor is widely used in various mechanical equipment, especially in the occasion needing high power and high torque, the traditional swing hydraulic motor mainly drives mechanical parts through the rotation of the output shaft to work, in the design of the hydraulic motor, the friction plate assembly is usually used in cooperation with the piston assembly to control the flow and pressure of the fluid in the hydraulic system, in addition, the movement of the hydraulic motor often needs to be controlled accurately through the disc spring or similar device to adjust and ensure the working state, however, in the shearing machine and other high-frequency reverse work, the existing swing hydraulic motor is often affected by unstable shearing force when encountering reverse pressure, thereby causing the decline of system efficiency.

[0003] In actual use, due to the lack of effective brake device, the motor output shaft often rotates or tilts due to the unstable factors caused by the reaction force in the stopping process, and the reaction force will affect the working accuracy and stability of the equipment, especially in the scene of shearing operation, the shearing efficiency and comfort are affected, in addition, the existing brake system relies on the traditional brake device, the response speed of these devices is slow, and they lack the ability to quickly suppress the reverse force, resulting in insufficient force control during work, which cannot meet the needs of high-frequency use and efficient operation. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art to some extent.

[0005] Therefore, the utility model provides a swing hydraulic motor with brake device, through the cooperation of the friction plate assembly and the piston assembly, and the control of the disc spring, the accurate brake of the motor when stopping is realized, the problem that the lack of effective brake device in the background technology causes the reaction force to be unable to be quickly suppressed is solved, and the stability and working efficiency of the equipment are improved.

[0006] To achieve the above object, the utility model provides a cycloid hydraulic motor with brake device, including output shaft, clamping spring, first bearing, sealing ring, friction plate assembly, piston assembly, dish type spring, back baffle, second bearing, stator rotor subassembly, valve disc and back shell body subassembly, wherein, the output shaft is supported through first bearing and second bearing, the spline is established in the middle position of output shaft, and the spline is fixedly connected with friction plate assembly, the friction plate assembly is connected with the output shaft through piston assembly, and piston assembly is connected with friction plate assembly through sliding fit, and is connected with dish type spring through oil port oil supply system, dish type spring is connected with oil port through pipeline, back shell body subassembly is fixedly connected with stator rotor subassembly through valve disc, and valve disc is connected with the oil distribution system of motor.

[0007] The utility model discloses a cycloid hydraulic motor with brake device, through the spline connection between output shaft and friction plate assembly, the output shaft is fixed between first bearing and second bearing through clamping spring, and the stable support is ensured. Friction plate assembly is connected with piston assembly through sliding fit, and piston assembly is connected with dish type spring through oil port oil supply system, and the position of piston is controlled by adjusting the compression degree of dish type spring, and then the compression and loose state of friction plate assembly is adjusted. Back shell body subassembly is connected with stator rotor subassembly through valve disc, and valve disc controls the supply of hydraulic oil and the rotating direction of motor, solves the problem that the reaction force cannot be quickly inhibited due to the lack of effective brake device in the background art, prevents the motor output shaft from rotating or tilting, improves the stability and working efficiency of equipment, and is especially suitable for high-frequency reverse and high-load working environment.

[0008] In addition, the cycloid hydraulic motor with brake device provided in the utility model can also have the following additional technical features:

[0009] Specifically, the output shaft is fixed between the first bearing and the second bearing through the clamping spring.

[0010] Specifically, the friction plate assembly is fixedly connected with the output shaft through the spline and is connected with the piston assembly through the sliding fit.

[0011] Specifically, the piston assembly is connected with the friction plate assembly through the sliding fit, and the piston assembly is connected with the dish type spring through the oil port, and the oil port is connected with the dish type spring through the pipeline.

[0012] Specifically, the back shell body subassembly is connected with the valve disc through the fixing structure.

[0013] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be known through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, in which:

[0015] Fig. 1 The utility model discloses a cycloid hydraulic motor with brake device.

[0016] Fig. 2 The utility model discloses a structure diagram of output shaft.

[0017] As shown in the figure:

[0018] 1, output shaft;2, clamp spring;3, first bearing;4, sealing ring;5, friction plate assembly;6, piston assembly;7, disc spring;8, rear baffle;9, second bearing;10, stator rotor assembly;11, valve disc;12, rear housing assembly. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and cannot be understood as limiting the present utility model. On the contrary, the embodiments of the present utility model include falling into the appended claims and the cycloid hydraulic motor with brake device described in the accompanying drawings to describe the embodiments of the present utility model.

[0020] The cycloid hydraulic motor with brake device of the embodiments of the present utility model is described below in conjunction with the drawings.

[0021] As Figs. 1-2 shown, the cycloid hydraulic motor with brake device of the embodiments of the present utility model can include output shaft 1, clamp spring 2, first bearing 3, sealing ring 4, friction plate assembly 5, piston assembly 6, disc spring 7, rear baffle 8, second bearing 9, stator rotor assembly 10, valve disc 11 and rear housing assembly 12, wherein output shaft 1 is supported by first bearing 3 and second bearing 9, and spline is arranged at the middle position of output shaft 1, and the spline is fixedly connected with friction plate assembly 5.

[0022] It should be noted that, in order to ensure that output shaft 1 can bear higher load and torque, the design of spline connection provides stronger connection strength, ensures that friction plate assembly 5 remains stable during operation, and reduces wear caused by friction.

[0023] Friction plate assembly 5 is connected with output shaft 1 through piston assembly 6, piston assembly 6 is connected with friction plate assembly 5 through sliding fit, and is connected with disc spring 7 through oil supply system control, and disc spring 7 is connected with oil port through pipeline.

[0024] It should be noted that the sliding fit design of the piston assembly 6 and the friction plate assembly 5 ensures that the piston assembly 6 can accurately adjust the contact degree of the friction plate when the pressure of the friction plate assembly 5 changes, thereby providing a more stable braking effect. In addition, the design of the oil port oil supply system enables the compression of the disc spring 7 to be accurately controlled, thereby achieving a smooth response of the brake.

[0025] The rear housing assembly 12 is fixedly connected with the stator-rotor assembly 10 through the valve disc 11, and the valve disc 11 is connected with the oil distribution system of the motor.

[0026] It should be noted that the valve disc 11 is designed by precise machining, so that the connection between the valve disc 11 and the rear housing assembly 12 and the stator-rotor assembly 10 is more closely, and the hydraulic oil can be accurately delivered to each system assembly, thereby maintaining the high-efficiency operation of the motor. At the same time, the position design of the valve disc 11 considers the smooth flow of high-pressure fluid, avoiding the pressure loss in the oil way.

[0027] Specifically, during operation, the compression or release of the friction plate assembly 5 is controlled by the movement of the piston assembly 6, the output shaft 1 is supported by the first bearing 3 and the second bearing 9, the spline is arranged at the middle position of the output shaft 1, and the spline is fixedly connected with the friction plate assembly 5 through the spline, so as to ensure the stability of the friction plate assembly 5. During operation, the compression and release of the disc spring 7 are controlled by the oil port oil supply system, the movement of the piston assembly 6 is adjusted through the connection between the oil port and the disc spring 7, so as to adjust the contact pressure between the friction plate assembly 5 and the output shaft 1, and the brake function is realized. When the oil port pressure decreases, the elastic restoring force of the disc spring 7 pushes the piston assembly 6 to move to the left, the friction plate assembly 5 is compressed, and the brake is realized. When the oil port pressure increases, the disc spring 7 is compressed, and the piston assembly 6 moves to the right, and the friction plate assembly 5 is released.

[0028] Through the accurate cooperation of the friction plate assembly 5 and the piston assembly 6 and the control of the disc spring 7, the problem of lacking an efficient brake device in the background art is solved. In the traditional hydraulic motor, the reaction force cannot be quickly inhibited, which causes the motor output shaft 1 to rotate or tilt, thereby affecting the stability and working efficiency of the equipment. By introducing the accurately controlled brake device, the reaction force is effectively inhibited, and the stability and reliability of the hydraulic motor are improved. Especially under the conditions of high-frequency reverse rotation and high load, the equipment can be accurately stopped.

[0029] In an embodiment of the utility model, as shown in Figs. 1-2As shown, the output shaft 1 is fixed between the first bearing 3 and the second bearing 9 by the snap spring 2, the friction plate assembly 5 is fixedly connected with the output shaft 1 through the spline, and is connected with the piston assembly 6 through the sliding fit, the piston assembly 6 is connected with the friction plate assembly 5 through the sliding fit, and the piston assembly 6 is connected with the disc spring 7 through the oil port, the oil port is connected with the disc spring 7 through the pipeline, and the rear housing assembly 12 is connected with the valve disc 11 through the fixing structure.

[0030] It should be noted that the spline connection design described in this embodiment ensures the fixation between the output shaft 1 and the friction plate assembly 5, so that the friction plate assembly 5 can stably transmit torque during operation; in addition, the connection of the oil port and the disc spring 7 provides a more precise control mechanism through the pipeline, allowing the compression and recovery state of the disc spring 7 to be adjusted when needed, thereby ensuring precise control of the brake function and avoiding potential pressure loss and response delay in the hydraulic system.

[0031] In summary, the cycloid hydraulic motor with a brake device according to the embodiments of the present application, through the spline connection between the output shaft 1 and the friction plate assembly 5, the output shaft 1 is fixed between the first bearing 3 and the second bearing 9 by the snap spring 2, to ensure stable support. The friction plate assembly 5 is connected with the piston assembly 6 through the sliding fit, and the piston assembly 6 is connected with the disc spring 7 through the oil port oil supply system, the compression degree of the disc spring 7 is adjusted to control the position of the piston, and then the compression and release state of the friction plate assembly 5 is adjusted. The rear housing assembly 12 is connected with the stator-rotor assembly 10 through the valve disc 11, and the valve disc 11 controls the supply of hydraulic oil and the rotation direction of the motor, solves the problem that the lack of effective brake device in the background technology leads to the inability to quickly suppress the reaction force, prevents the motor output shaft 1 from rotating or tilting, improves the stability and working efficiency of the equipment, and is especially suitable for high-frequency reverse rotation and high-load working environment.

[0032] In the description of the present application, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0033] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0034] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and deformations to the above-described embodiments within the scope of the present application.

Claims

1. A cycloidal hydraulic motor with a brake device, characterized in that, The application relates to a motor, which comprises an output shaft (1), a clamping spring (2), a first bearing (3), a sealing ring (4), a friction plate assembly (5), a piston assembly (6), a disc spring (7), a rear partition plate (8), a second bearing (9), a stator-rotor assembly (10), a valve disc (11) and a rear housing assembly (12), wherein, The output shaft (1) is supported by the first bearing (3) and the second bearing (9), and the output shaft (1) is provided with splines at a middle position, the splines being fixedly connected with the friction plate assembly (5); The friction plate assembly (5) is connected with the output shaft (1) through the piston assembly (6), the piston assembly (6) is connected with the friction plate assembly (5) through sliding fit, and the piston assembly (6) is connected with the disc spring (7) through an oil inlet oil supply system, the disc spring (7) is connected with the oil inlet through a pipeline; The rear housing assembly (12) is fixedly connected with the stator-rotor assembly (10) through the valve disc (11), and the valve disc (11) is connected with an oil distribution system of a motor.

2. The motor according to claim 1, wherein The output shaft (1) is fixed between the first bearing (3) and the second bearing (9) through the clamping spring (2).

3. The motor according to claim 1, wherein The friction plate assembly (5) is fixedly connected with the output shaft (1) through the splines, and is connected with the piston assembly (6) through sliding fit.

4. The motor according to claim 1, wherein The piston assembly (6) is connected with the friction plate assembly (5) through sliding fit, and the piston assembly (6) is connected with the disc spring (7) through an oil inlet, and the oil inlet is connected with the disc spring (7) through a pipeline.

5. The motor according to claim 1, wherein The rear housing assembly (12) is connected with the valve disc (11) through a fixing structure.

Images