Cycloid type hydraulic motor

Abstract

The utility model discloses a cycloid type hydraulic motor which comprises a motor body and an oil outlet pipe connected with an oil outlet port of the motor body in a sealing mode, and further comprises an installation cover arranged outside the motor body in a sleeved mode, a heat dissipation mechanism arranged inside the tail end of the installation cover, and a filtering mechanism arranged inside an oil inlet port of the motor body. According to the cycloid type hydraulic motor, hydraulic oil can flow into the filter cylinder body along the oil inlet pipe, the arranged filter screen cylinder can filter and intercept large-particle matter in the hydraulic oil, and the filtered hydraulic oil can flow into the motor body through the threaded connection shaft; and the arranged end cover can tightly press the filter screen cylinder in the limiting groove body, so that the filter screen cylinder is installed more tightly, and the situation that large-particle impurities in hydraulic oil possibly enter the cycloid type hydraulic motor to affect use of the cycloid type hydraulic motor can be prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of cycloidal hydraulic motors, specifically a cycloidal hydraulic motor. Background Technology

[0002] A hydraulic motor is an actuator in a hydraulic system that converts the liquid pressure energy provided by a hydraulic pump into the mechanical energy (torque and speed) of its output shaft. Liquid is the medium for transmitting force and motion. Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemicals, port machinery, etc. Cycloidal hydraulic motors have cooling treatments applied to the flowing hydraulic oil during use to prevent overheating.

[0003] Currently, when cycloidal hydraulic motors operate under high torque and high load, their surfaces still experience high temperatures. Prolonged heat dissipation may reduce the lifespan of the cycloidal hydraulic motor. Furthermore, large particles of impurities may appear in the hydraulic oil; if these enter the motor, they could damage it. Therefore, we propose a cycloidal hydraulic motor to address this problem. Utility Model Content

[0004] The purpose of this invention is to provide a cycloidal hydraulic motor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cycloidal hydraulic motor, comprising a motor body and an oil outlet pipe sealed to the oil outlet port of the motor body, and further comprising:

[0006] The mounting cover is fitted over the outside of the motor body;

[0007] The heat dissipation mechanism is located inside the rear end of the mounting cover and is used to dissipate heat from the motor body.

[0008] The filter mechanism is located inside the oil inlet port of the motor body and is used to filter the hydraulic oil.

[0009] Preferably, the heat dissipation mechanism includes a mounting bracket, a drive motor, and a rotating fan blade. The mounting bracket is fixed inside the rear end of the mounting cover, and the cross-section of the mounting bracket is a cross shape. The drive motor is fixed at the center of one side of the mounting bracket, and the rotating fan blade is fixed at the output end of the drive motor, and the rotating fan blade is located inside the mounting cover.

[0010] Preferably, the outer wall of the mounting cover has heat dissipation grooves distributed around its front circumference.

[0011] Preferably, the filtration mechanism includes a threaded connecting shaft, a filter cylinder, a limiting groove, and a filter screen. The threaded connecting shaft is threaded into the oil inlet port of the motor body, and one end of the threaded connecting shaft extends to the outside of the mounting cover. The filter cylinder is sealed to the top of the threaded connecting shaft. The limiting groove is opened at the center of the upper end face of the filter cylinder. The filter screen is embedded in the limiting groove, and fine through holes are evenly distributed inside the filter screen.

[0012] Preferably, an end cap is fixed to the upper end face of the filter cylinder, and the lower end face of the end cap is in contact with the filter screen cylinder, and an oil inlet pipe is sealed and connected to the center of the upper end face of the end cap.

[0013] Preferably, the outer wall of the mounting cover is symmetrically distributed with connecting ear plates, and one side of the connecting ear plate has a through hole, which is aligned with the mounting hole of the motor body on the same center line.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The drive motor provided in this utility model can drive the rotating fan blades to rotate, thereby blowing external air into the interior of the mounting cover. The blown air can flow along the length of the mounting cover and then flow out from the mounting groove. The blown air can carry away the heat accumulated on the surface of the motor body, thereby cooling the motor body, preventing heat accumulation, and thus extending the service life of the motor body.

[0016] 2. In this utility model, hydraulic oil can flow into the interior of the filter cylinder along the oil inlet pipe. The filter screen can filter and intercept large particles in the hydraulic oil. The filtered hydraulic oil can flow into the interior of the motor body through the threaded connection shaft. The end cap can press the filter screen into the interior of the limiting groove, making the filter screen more tightly installed. This can prevent large particles of impurities that may appear in the hydraulic oil from entering the interior of the cycloidal hydraulic motor and affecting the use of the cycloidal hydraulic motor. Attached Figure Description

[0017] Figure 1 This is a top view of the overall structure of this utility model;

[0018] Figure 2 This is an exploded structural diagram of the overall structure of this utility model;

[0019] Figure 3 This is a bottom view of the filter mechanism of this utility model;

[0020] Figure 4 This is an exploded structural diagram of the filtration mechanism of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the filtration mechanism of this utility model.

[0022] In the diagram: 1. Motor body; 2. Mounting cover; 3. Mounting bracket; 4. Drive motor; 5. Rotating fan blade; 6. Heat dissipation tank; 7. Mounting tank; 8. Threaded connecting shaft; 9. Filter cylinder; 10. Limiting tank; 11. Filter screen cylinder; 12. End cap; 13. Oil outlet pipe; 14. Oil inlet pipe. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-5 This utility model provides a cycloidal hydraulic motor, including a motor body 1 and an oil outlet pipe 13 sealed to the oil outlet port of the motor body 1. It also includes: an oil inlet port and an oil outlet port provided on the upper end of the outer wall of the motor body 1 for inputting and outputting hydraulic oil; a mounting cover 2 sleeved on the outside of the motor body 1; connecting lugs are symmetrically distributed and fixed on the outer wall of the mounting cover 2, and a through hole is opened on one side of the connecting lugs. The through hole is kept on the same center line as the mounting hole of the motor body 1. Bolts can be passed through the connecting lugs on the outer wall of the mounting cover 2 and installed using the mounting hole of the motor body 1, so that the motor body 1 and the mounting cover 2 are fixed together by bolts.

[0025] A heat dissipation mechanism is installed inside the tail end of the mounting cover 2 to dissipate heat from the motor body 1. The heat dissipation mechanism includes a mounting bracket 3, a drive motor 4, and a rotating fan blade 5. The mounting bracket 3 is fixed inside the tail end of the mounting cover 2, and the cross-section of the mounting bracket 3 is a cross shape. The drive motor 4 is fixed at the center of one side of the mounting bracket 3. The rotating fan blade 5 is fixed at the output end of the drive motor 4 and is located inside the mounting cover 2. A heat dissipation groove 6 is distributed and opened through the circumference of the front side of the outer wall of the mounting cover 2. The drive motor 4 can drive the rotating fan blade 5 to rotate, thereby blowing external air into the interior of the mounting cover 2. The blown air can flow along the length of the mounting cover 2 and then flow out from the mounting groove 7. The blown air can carry away the heat accumulated on the surface of the motor body 1, thereby cooling the motor body 1, preventing heat accumulation, and extending the service life of the motor body 1.

[0026] A filtering mechanism, located inside the oil inlet port of the motor body 1, is used to filter hydraulic oil. The filtering mechanism includes a threaded connecting shaft 8, a filter cylinder 9, a limiting groove 10, and a filter screen cylinder 11. The threaded connecting shaft 8 is threaded into the oil inlet port of the motor body 1, with one end extending to the outside of the mounting cover 2. The filter cylinder 9 is sealed to the top of the threaded connecting shaft 8. The limiting groove 10 is located at the center of the upper end face of the filter cylinder 9. The filter screen cylinder 11 is embedded inside the limiting groove 10, and fine through holes are evenly distributed inside the filter screen cylinder 11. An end cap 12 is fixed to the upper end face of the filter cylinder 9. The lower end face of the end cap 12 is in contact with the filter cylinder 11. The upper end face of the end cap 12 is sealed with an oil inlet pipe 14 at the center. Hydraulic oil can flow into the interior of the filter cylinder 9 along the oil inlet pipe 14. The filter cylinder 11 can filter and intercept large particles in the hydraulic oil. The filtered hydraulic oil can flow into the interior of the motor body 1 through the threaded connection shaft 8. The end cap 12 can press the filter cylinder 11 into the interior of the limiting groove 10, making the filter cylinder 11 more tightly installed. This can prevent large particles of impurities that may appear in the hydraulic oil from entering the interior of the cycloidal hydraulic motor and affecting the use of the cycloidal hydraulic motor.

[0027] Working principle: First, the motor body 1 and the oil outlet port of the motor body 1 are sealed and connected with the oil outlet pipe 13. It also includes: the upper end of the outer wall of the motor body 1 is provided with an oil inlet port and an oil outlet port for inputting and outputting hydraulic oil. The mounting cover 2 is fitted on the outside of the motor body 1. The outer wall of the mounting cover 2 is symmetrically distributed with connecting ear plates, and a through hole is opened on one side of the connecting ear plate. The through hole is kept on the same center line as the mounting hole of the motor body 1. Bolts can be passed through the connecting ear plates on the outer wall of the mounting cover 2 and installed using the mounting hole of the motor body 1, so that the motor body 1 and the mounting cover 2 are fixed together by bolts.

[0028] When in use, the drive motor 4 can drive the rotating fan blade 5 to rotate, thereby blowing external air into the interior of the mounting cover 2. The blown air can flow along the length of the mounting cover 2 and then flow out from the mounting groove 7. The blown air can carry away the heat accumulated on the surface of the motor body 1, thereby cooling the motor body 1, preventing heat accumulation, and thus extending the service life of the motor body 1.

[0029] Furthermore, hydraulic oil can flow into the interior of the filter cylinder 9 along the oil inlet pipe 14. The filter screen 11 can filter and intercept large particles in the hydraulic oil. The filtered hydraulic oil can flow into the interior of the motor body 1 through the threaded connection shaft 8. The end cap 12 can press the filter screen 11 into the interior of the limiting groove 10, making the filter screen 11 more tightly installed. This can prevent large particles of impurities that may appear in the hydraulic oil from entering the interior of the cycloidal hydraulic motor and affecting the use of the cycloidal hydraulic motor.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cycloidal hydraulic motor, comprising a motor body (1) and an oil outlet pipe (13) sealed to the oil outlet port of the motor body (1), characterized in that: Mounting cover (2) is fitted over the outside of the motor body (1); A heat dissipation mechanism is installed inside the tail end of the mounting cover (2) to dissipate heat from the motor body (1); The filter mechanism is located inside the oil inlet port of the motor body (1) and is used to filter the hydraulic oil.

2. The cycloidal hydraulic motor according to claim 1, characterized in that: The heat dissipation mechanism includes a mounting bracket (3), a drive motor (4), and a rotating fan blade (5). The mounting bracket (3) is fixed inside the tail end of the mounting cover (2), and the cross-section of the mounting bracket (3) is a cross shape. The drive motor (4) is fixed in the center of one side of the mounting bracket (3), and the rotating fan blade (5) is fixed at the output end of the drive motor (4), and the rotating fan blade (5) is located inside the mounting cover (2).

3. A cycloidal hydraulic motor according to claim 2, characterized in that: The outer wall of the mounting cover (2) is provided with heat dissipation grooves (6) distributed around the front circumference.

4. A cycloidal hydraulic motor according to claim 1, characterized in that: The filtering mechanism includes a threaded connecting shaft (8), a filter cylinder (9), a limiting groove (10), and a filter screen cylinder (11). The threaded connecting shaft (8) is threadedly connected to the inside of the oil inlet port of the motor body (1), and one end of the threaded connecting shaft (8) extends to the outside of the mounting cover (2). The filter cylinder (9) is sealed to the top of the threaded connecting shaft (8). The limiting groove (10) is opened at the center of the upper end face of the filter cylinder (9). The filter screen cylinder (11) is embedded in the inside of the limiting groove (10), and fine through holes are evenly distributed inside the filter screen cylinder (11).

5. A cycloidal hydraulic motor according to claim 4, characterized in that: The upper end face of the filter cylinder (9) is fixed with an end cap (12), and the lower end face of the end cap (12) is in contact with the filter screen cylinder (11). An oil inlet pipe (14) is sealed and connected to the center of the upper end face of the end cap (12).

6. A cycloidal hydraulic motor according to claim 1, characterized in that: The outer wall of the mounting cover (2) is symmetrically distributed with connecting ear plates, and a through hole is provided on one side of the connecting ear plate. The through hole and the mounting hole of the motor body (1) are on the same center line.

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