A high efficiency lubrication device for a servo motor

Abstract

This utility model relates to the field of lubrication device technology, and in particular to a high-efficiency lubrication device for a servo motor. It includes a servo motor body, a first oil guide pipe fixedly connected to the right side of the servo motor body, a second oil guide pipe fixedly connected to the lower end of the servo motor body, an oil delivery assembly installed on the right side of the first oil guide pipe, and the front end of the oil delivery assembly connected to a third oil guide pipe via bolts. The third oil guide pipe is inserted into the interior of a cleaning assembly. A filter assembly is installed on the outside of the cleaning assembly. The filter assembly includes a housing, a filter cylinder fixedly connected to the inside of the housing, a silicone duckbill valve and a rubber sealing ring fixedly connected to the inside of the filter cylinder, and filter holes opened on the inside of the filter cylinder. The cleaning assembly includes a rotating cylinder, and a rotating ring fixedly connected to the outside of the rotating cylinder. In this utility model, the device can automatically transfer impurities, clean the filter element, reduce clogging frequency, reduce maintenance frequency, is easy to operate, does not affect continuous lubrication, improves user experience, and extends equipment life.

Description

Technical Field

[0001] This utility model relates to the field of lubrication device technology, specifically a high-efficiency lubrication device for a servo motor. Background Technology

[0002] High-efficiency lubrication devices for servo motors typically employ technologies such as circulating oil supply, automatic lubrication systems, or low-volatility, high-performance greases. For example, a servo motor bearing oil lubrication and cooling structure achieves lubrication and cooling through a circulating oil supply method. The lubricating oil carries away heat while lubricating the bearing, preventing excessive oil pressure. In addition, NSK has developed a low-volatility, high-performance grease with twice the low volatility of current products, which can effectively reduce grease volatilization and scattering, and improve the operational stability of the servo motor.

[0003] The efficient lubrication device for servo motors usually adopts a circulating oil supply system or high-performance grease. The circulating oil supply system draws lubricating oil from the oil tank through an oil pump, filters it, and delivers it to key parts such as bearings. The lubricated oil is then returned to the oil tank for recycling. This system can not only effectively lubricate, but also remove heat and prevent the bearing temperature from getting too high.

[0004] During the operation of a servo motor, when lubricating oil lubricates the bearings, impurities are generated due to mechanical wear. These impurities mix with the lubricating oil to form contaminants. In addition, oxidation products and additive particles in the lubricating oil also get mixed in. When these contaminants pass through the filtration system, they can easily cause filter element clogging, especially when high-precision filtration is used, the clogging rate of the filter element will be significantly accelerated, thus requiring more frequent replacement or cleaning of the filter element. This not only increases the maintenance frequency, but may also affect the normal use of the equipment and the user experience. Therefore, a high-efficiency lubrication device for servo motors is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency lubrication device for servo motors to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency lubrication device for a servo motor includes a servo motor body. A first oil guide pipe is fixedly connected to the right side of the servo motor body, and a second oil guide pipe is fixedly connected to the lower end of the servo motor body. An oil delivery assembly is installed on the right side of the first oil guide pipe. The front end of the oil delivery assembly is connected to a third oil guide pipe by bolts. The third oil guide pipe is inserted into the interior of a cleaning assembly. A filter assembly is installed on the outside of the cleaning assembly. The filter assembly includes a housing. A filter cylinder is fixedly connected to the inside of the housing. A silicone duckbill valve and a rubber sealing ring are fixedly connected to the inside of the filter cylinder. A filter hole is opened on the inside of the filter cylinder. The cleaning assembly includes a rotating cylinder. A rotating ring is fixedly connected to the outside of the rotating cylinder. A rotating rod and a first connecting pipe are fixedly connected to the rear end of the rotating ring. A vortex and a second solenoid valve are fixedly connected to the inside of the rotating cylinder. A threaded rotating head is spirally installed on the inside of the rotating cylinder. A second filter plate is fixedly connected to the inside of the threaded rotating head.

[0008] As a further optimization of this utility model, the servo motor body includes an end cover, the inner side of which has a first oil channel and a second oil channel. The inner side of the end cover is rotatably connected to the rotor through a motor bearing. An O-ring is fixedly connected to the inner side of the end cover, and the inner side of the O-ring is in contact with the outer side of the rotor.

[0009] As a further optimization of this utility model, the oil delivery assembly includes an oil storage tank, a first oil pump is fixedly connected to the inner side of the oil storage tank, a first connecting pipe and a second connecting pipe are fixedly connected to the upper end of the oil storage tank, a first solenoid valve is fixedly connected to the inner side of both the first and second connecting pipes, a second oil pump is fixedly connected to the left end of the oil storage tank, a fixed opening is provided at the front end of the oil storage tank, and a first filter plate is fixedly connected to the inner side of the rear end of the oil storage tank.

[0010] As a further optimization of this utility model, the top ends of the second connecting pipe and the first connecting pipe are both fixedly connected to the inner side of the lower end of the cover, the left end of the second oil pump is fixedly connected to the right end of the first oil guide pipe, and the third oil guide pipe is inserted into the inner side of the fixed port.

[0011] As a further optimization of this utility model, the third oil guide tube is inserted into the interior of the second filter plate, the upper end of the third oil guide tube is fitted with the inner side of the second filter plate through a sealing ring, and the lower end of the third oil guide tube is fitted with the inner side of the fixing port through a sealing ring.

[0012] As a further optimization of this utility model, the inner side of the rubber sealing ring is fitted with the outer side of the rotating drum, the inner side of the filter cylinder is rotatably connected to the rotating drum through a bearing, the inner side of the filter cylinder is fitted with the outer side of the rubber scraper, and the rear end of the filter cylinder is fixedly connected to the second oil guide pipe.

[0013] As a further optimization of this utility model, the inner side of the rotating drum is a hollow structure, the front end of the rotating drum is provided with a threaded hole, and the threaded rotating head is sealed to the rotating drum by a sealing ring.

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

[0015] In this invention, the device significantly improves the operating performance and maintenance efficiency of the servo motor through the inclusion of a filter and a cleaning component. During lubrication, the lubricating oil effectively removes impurities, improving the lubrication effect on the bearings and reducing wear and failure risks caused by impurities. Simultaneously, the device has an automatic impurity transfer function, automatically cleaning the filter element when the lubricating oil flow is insufficient, reducing the frequency of filter element clogging and maintenance. Furthermore, maintenance is simple, and cleaning impurities does not affect the continuous lubrication of the bearings, ensuring the normal use of the device, improving the user experience, and extending the service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the servo motor body of this utility model;

[0018] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0019] Figure 4 This is a cross-sectional structural diagram of the oil delivery assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the third oil guide pipe structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the oil storage tank structure of this utility model;

[0022] Figure 7 This is a cross-sectional structural diagram of the filter assembly of this utility model;

[0023] Figure 8 This is a cross-sectional structural diagram of the cleaning component of this utility model;

[0024] Figure 9 This is a schematic diagram of the rotating drum structure of this utility model.

[0025] In the diagram: 1. Servo motor body; 11. End cover; 12. First oil channel; 13. Second oil channel; 14. Motor bearing; 15. O-ring seal; 16. Rotor;

[0026] 2. First oil guide pipe; 3. Second oil guide pipe;

[0027] 4. Oil delivery assembly; 41. Oil storage tank; 42. First oil pump; 43. First connecting pipe; 44. First solenoid valve; 45. Second connecting pipe; 46. Second oil pump; 47. Fixing port; 48. First filter plate;

[0028] 5. Third oil guide pipe;

[0029] 6. Filter assembly; 61. Housing; 62. Filter cartridge; 63. Silicone duckbill valve; 64. Rubber sealing ring; 65. Filter holes;

[0030] 7. Cleaning assembly; 71. Rotary drum; 72. Rotary ring; 73. Rotary rod; 74. Rubber scraper; 75. Vortex; 76. Second solenoid valve; 77. Threaded rotor; 78. Second filter plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Please see Figures 1-9 This utility model provides a technical solution:

[0034] A high-efficiency lubrication device for a servo motor includes a servo motor body 1. A first oil guide pipe 2 is fixedly connected to the right side of the servo motor body 1, and a second oil guide pipe 3 is fixedly connected to the lower end of the servo motor body 1. An oil delivery assembly 4 is installed on the right side of the first oil guide pipe 2. The front end of the oil delivery assembly 4 is connected to a third oil guide pipe 5 by bolts. The third oil guide pipe 5 is inserted into the interior of a cleaning assembly 7. A filter assembly 6 is installed on the outside of the cleaning assembly 7. The filter assembly 6 includes a cover 61. A filter cylinder 62 is fixedly connected to the inside of the cover 61. A silicone duckbill valve 63 and a rubber sealing ring 64 are fixedly connected to the inside of the filter cylinder 62. A filter hole 65 is opened on the inside of the filter cylinder 62. The cleaning assembly 7 includes a rotating cylinder 71. A rotating ring 72 is fixedly connected to the outside of the rotating cylinder 71. A rotating rod 73 and a first connecting pipe 43 are fixedly connected to the rear end of the rotating ring 72. A vortex 75 and a second solenoid valve 76 are fixedly connected to the inside of the rotating cylinder 71. A threaded rotating head 77 is spirally installed on the inside of the rotating cylinder 71. A second filter plate 78 is fixedly connected to the inside of the threaded rotating head 77.

[0035] As a further implementation of this solution, the servo motor body 1 includes an end cover 11. The end cover 11 has a first oil channel 12 and a second oil channel 13 on its inner side. The inner side of the end cover 11 is rotatably connected to the rotor 16 through a motor bearing 14. An O-ring seal 15 is fixedly connected to the inner side of the end cover 11. The inner side of the O-ring seal 15 is in contact with the outer side of the rotor 16. Through the above arrangement, a channel is provided for the entry and exit of lubricating oil, ensuring the sealing and reliability of the lubrication process and extending the service life of the bearing.

[0036] As a further implementation of this solution, the oil delivery assembly 4 includes an oil storage tank 41. A first oil pump 42 is fixedly connected to the inside of the oil storage tank 41. A first connecting pipe 43 and a second connecting pipe 45 are fixedly connected to the upper end of the oil storage tank 41. A first solenoid valve 44 is fixedly connected to the inside of both the first connecting pipe 43 and the inside of both the second connecting pipe 45. A second oil pump 46 is fixedly connected to the left end of the oil storage tank 41. A fixed port 47 is opened at the front end of the oil storage tank 41. A first filter plate 48 is fixedly connected to the inside of the rear end of the oil storage tank 41. The top ends of the second connecting pipe 45 and the first connecting pipe 43 are fixedly connected to the inside of the lower end of the cover 61. The left end of the second oil pump 46 is fixedly connected to the right end of the first oil guide pipe 2. A third oil guide pipe 5 is inserted into the inside of the fixed port 47. Through the above settings, the functions of lubricating oil delivery, circulation and pressure regulation are realized. At the same time, the fixed port 47 and the first filter plate 48 provide a channel for the flow of lubricating oil, ensuring the efficient operation of the lubrication system.

[0037] As a further implementation of this solution, the third oil guide pipe 5 is inserted into the inside of the second filter plate 78. The upper end of the third oil guide pipe 5 is attached to the inner side of the second filter plate 78 through a sealing ring, and the lower end of the third oil guide pipe 5 is attached to the inner side of the fixing port 47 through a sealing ring. With the above settings, lubricating oil can flow from the inside of the third oil guide pipe 5 when cleaning impurities inside the filter cylinder 62.

[0038] As a further implementation of this solution, the inner side of the rubber sealing ring 64 is fitted with the outer side of the rotating drum 71, the inner side of the filter cylinder 62 is rotatably connected to the rotating drum 71 through a bearing, the inner side of the filter cylinder 62 is fitted with the outer side of the rubber scraper 74, and the rear end of the filter cylinder 62 is fixedly connected to the second oil guide pipe 3. Through the above settings, lubricating oil leakage can be prevented. At the same time, the rotatable connection between the filter cylinder 62 and the rotating drum 71 and the fit of the rubber scraper 74 realize the function of filtering and scraping impurities in the lubricating oil.

[0039] As a further implementation of this solution, the inner side of the rotating drum 71 is hollow, and a threaded hole is opened at the front end of the rotating drum 71. The threaded rotating head 77 and the rotating drum 71 are sealed by a sealing ring. With the above settings, the flow of lubricating oil and the discharge of impurities are facilitated, which can effectively prevent impurities from entering other parts. At the same time, when cleaning impurities, it does not affect the continuous lubrication of the motor bearing 14.

[0040] Workflow:

[0041] Example 1: To achieve efficient lubrication of the motor bearing 14 of the servo motor body 1, the second oil pump 46 is started to deliver the lubricating oil inside the oil tank 41 to the inside of the first oil guide pipe 2. The lubricating oil then enters the end cover 11 through the inner side of the first oil guide pipe 2 and the first oil channel 12. Both the front and rear ends of the motor bearing 14 are sealed with O-rings 15 to prevent lubricating oil overflow. A flow meter is installed inside the first oil channel 12 to monitor the amount of lubricating oil entering the first oil channel 12. After the lubricating oil contacts the motor bearing 14, it lubricates the motor bearing 14. The lubricating oil then flows out through the second oil channel 13 and enters the filter cartridge 62 through the second oil guide pipe 3. At this time, the second solenoid valve 76 is closed. The sealing ring 64 seals the filter cylinder 62 and the rotating cylinder 71 to prevent lubricating oil from overflowing. The lubricating oil enters the housing 61 through the filter hole 65 and filters impurities as it passes through the filter hole 65. The filtered impurities accumulate inside the filter cylinder 62, and the filtered lubricating oil enters the housing 61. At this time, the first solenoid valve 44 inside the second connecting pipe 45 is open, and the first solenoid valve 44 inside the first connecting pipe 43 is closed. The lubricating oil enters the oil storage tank 41 through the second connecting pipe 45. The oil storage tank 41 has a through hole near the first filter plate 48 to relieve the air pressure inside the oil storage tank 41. The lubricating oil entering the oil storage tank 41 circulates and is then drawn out by the second oil pump 46, thereby achieving the effect of circulating lubrication of the motor bearing 14.

[0042] Example 2: When the lubricating oil flow is insufficient, the flow meter detects the problem and the controller controls the first solenoid valve 44 inside the second connecting pipe 45 to close the second solenoid valve 76 and start the first oil pump 42. The second oil pump 46 continues to operate. At this time, the first oil pump 42 draws lubricating oil from the oil storage tank 41 and delivers it to the inside of the cover 61. The lubricating oil inside the cover 61 enters the filter hole 65. Under the pressure of the backwash, impurities stuck inside the filter hole 65 can be pushed into the filter cylinder 62. The silicone duckbill valve 63 acts as a one-way valve. At this time, the lubricating oil inside the filter cylinder 62 will come into contact with the vortex blade 75 through the inside of the rotating cylinder 71. Under the action of the impact force, the vortex blade 75 will rotate, and the vortex blade 75 will drive the cleaning component 7 to rotate as a whole. The rubber scraper 74 will scrape off the impurities on the inner wall of the filter cylinder 62, and then enter the second filter plate 78 through the threaded rotating head 77. The second filter plate 78 will filter again, and concentrate the impurities inside the threaded rotating head 77. Then, it will enter the oil storage tank 41 through the third oil guide pipe 5, and then be drawn out by the second oil pump 46, thereby achieving the function of cleaning the filter cylinder 62.

[0043] Example 3: When it is necessary to clean impurities, the working state is the same as in Example 1. Remove the third oil guide pipe 5 from the oil tank 41, pull the third oil guide pipe 5 out from the second filter plate 78 and the fixing port 47, and then separate the threaded head 77 from the rotating drum 71 by rotating the threaded head 77. Then remove the impurities inside the threaded head 77 and reinstall it inside the rotating drum 71. This process does not affect the lubrication of the motor bearing 14.

[0044] Based on the above principles, when lubricating the bearing of the servo motor body 1, the device can remove impurities from the lubricating oil and improve the lubrication effect of the lubricating oil on the motor bearing 14. When the flow of lubricating oil is insufficient, it can automatically transfer the impurities to a designated location. This not only reduces the frequency of filter cleaning and maintenance, but also does not affect the continuous lubrication of the motor bearing 14 during maintenance, and does not affect the normal use of the device and the user experience.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency lubrication device for a servo motor, comprising a servo motor body (1), characterized in that: The servo motor body (1) is fixedly connected to the right side of the first oil guide pipe (2), and the servo motor body (1) is fixedly connected to the lower end of the second oil guide pipe (3). The first oil guide pipe (2) is installed on the right side of the oil delivery assembly (4). The front end of the oil delivery assembly (4) is connected to the third oil guide pipe (5) by bolts. The third oil guide pipe (5) is inserted into the inside of the cleaning assembly (7). The cleaning assembly (7) is installed on the outside of the filter assembly (6). The filter assembly (6) includes a housing (61), a filter cylinder (62) is fixedly connected to the inside of the housing (61), a silicone duckbill valve (63) and a rubber sealing ring (64) are fixedly connected to the inside of the filter cylinder (62), and a filter hole (65) is opened on the inside of the filter cylinder (62). The cleaning assembly (7) includes a rotating drum (71), a rotating ring (72) is fixedly connected to the outside of the rotating drum (71), a rotating rod (73) and a first connecting pipe (43) are fixedly connected to the rear end of the rotating ring (72), a vortex (75) and a second solenoid valve (76) are fixedly connected to the inside of the rotating drum (71), a threaded rotating head (77) is spirally installed on the inside of the rotating drum (71), and a second filter plate (78) is fixedly connected to the inside of the threaded rotating head (77).

2. The high-efficiency lubrication device for a servo motor according to claim 1, characterized in that: The servo motor body (1) includes an end cover (11), and the end cover (11) has a first oil channel (12) and a second oil channel (13) on its inner side. The inner side of the end cover (11) is rotatably connected to the rotor (16) through a motor bearing (14). An O-ring (15) is fixedly connected to the inner side of the end cover (11), and the inner side of the O-ring (15) is in contact with the outer side of the rotor (16).

3. The high-efficiency lubrication device for a servo motor according to claim 1, characterized in that: The oil delivery assembly (4) includes an oil storage tank (41), a first oil pump (42) is fixedly connected to the inside of the oil storage tank (41), a first connecting pipe (43) and a second connecting pipe (45) are fixedly connected to the upper end of the oil storage tank (41), a first solenoid valve (44) is fixedly connected to the inside of the first connecting pipe (43) and the inside of the second connecting pipe (45), a second oil pump (46) is fixedly connected to the left end of the oil storage tank (41), a fixed port (47) is opened at the front end of the oil storage tank (41), and a first filter plate (48) is fixedly connected to the inside of the rear end of the oil storage tank (41).

4. The high-efficiency lubrication device for a servo motor according to claim 3, characterized in that: The top end of the second connecting pipe (45) and the top end of the first connecting pipe (43) are both fixedly connected to the inner side of the lower end of the cover (61). The left end of the second oil pump (46) is fixedly connected to the right end of the first oil guide pipe (2). The third oil guide pipe (5) is inserted into the inner side of the fixed port (47).

5. The high-efficiency lubrication device for a servo motor according to claim 1, characterized in that: The third oil guide pipe (5) is inserted into the interior of the second filter plate (78). The upper end of the third oil guide pipe (5) is attached to the inner side of the second filter plate (78) through a sealing ring, and the lower end of the third oil guide pipe (5) is attached to the inner side of the fixing port (47) through a sealing ring.

6. The high-efficiency lubrication device for a servo motor according to claim 1, characterized in that: The inner side of the rubber sealing ring (64) is in contact with the outer side of the rotating drum (71), the inner side of the filter cylinder (62) is rotatably connected to the rotating drum (71) through a bearing, the inner side of the filter cylinder (62) is in contact with the outer side of the rubber scraper (74), and the rear end of the filter cylinder (62) is fixedly connected to the second oil guide pipe (3).

7. The high-efficiency lubrication device for a servo motor according to claim 1, characterized in that: The inner side of the rotating drum (71) is hollow, and a threaded hole is provided at the front end of the rotating drum (71). The threaded rotating head (77) and the rotating drum (71) are sealed by a sealing ring.

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