A device for adding lubricating grease to an electric motor
By driving the pressure plate downward with a cylinder, combined with the limiting ring and guide block for limiting, the problems of grease jamming and difficulty in controlling the amount of grease added in the lubricating grease filling device are solved, realizing stable and reliable grease filling and ensuring the stable operation of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY UNIT 63621
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
AI Technical Summary
In existing electric motor lubricating grease filling devices, the threaded rod lacks stable guidance, and the piston is not limited after moving down, which makes it easy for lubricating grease to get stuck and makes it difficult to control the filling amount.
The pressure plate is driven to move downward by a cylinder. The pressure plate is limited by a limiting ring, guide block and guide groove. The automatic control of lubricating grease is achieved by adjusting the screw and wedge groove, which ensures the stability and guidance of pressure extrusion and the mobility of the guide groove, so as to realize the automatic filling of lubricating grease.
It achieves automation and guidance of lubricant filling, ensuring stable and reliable lubricant filling, preventing grease jamming, and ensuring the stability and reliability of filling.
Smart Images
Figure CN224454282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lubricating grease filling technology, and in particular to a lubricating grease filling device for electric motors. Background Technology
[0002] Lubricating grease filling devices for electric motors are widely used in various electric motor equipment that requires lubrication, such as electric motors on industrial production lines, electric motors in wind turbine generators, and electric motors in automobiles. Especially in situations where frequent lubrication is required or the working environment is harsh, this filling device can add lubricating grease to the electric motor to ensure stable operation and extend its service life.
[0003] Chinese patent document CN214093933U discloses a lubricating oil filling device. It compresses lubricating oil by using a pressure plate slidably connected within an oil tank, ensuring that the lubricating oil is pressurized and filled into the corresponding equipment through the oil outlet and oil pipe. By creating a threaded structure in the center of the tank cover and on the surface of the threaded rod, it achieves the effect of downward rotation and compression of the lubricating oil, effectively preventing the pressure plate from rebounding due to the reaction force of the lubricating oil. The studs effectively prevent the tank cover from separating from the oil tank, and the threads on the threaded rod effectively determine the amount of lubricating oil added, solving the problem of frequently stopping refueling to observe the amount added.
[0004] The existing technology has the following problems:
[0005] The existing threaded rod lacks stable guidance when moving downwards, and there is no limit to the piston after it moves downwards. This makes it easy for the piston to press past the oil pipe, which may cause the lubricating grease in the oil pipe to enter between the upper end face of the piston and the oil reservoir, resulting in grease jamming. The use is not stable and reliable, and the amount of lubricating grease added cannot be controlled. Utility Model Content
[0006] This invention provides a lubricating grease filling device for electric motors to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0008] A lubricating grease filling device for an electric motor includes a mounting frame, an oil storage tank fixedly mounted on the upper surface of the mounting frame, an adjusting component fixedly mounted on the left side of the oil storage tank, a filling pipe fixedly mounted on the left side of the adjusting component, a filling pipe fixedly mounted on the upper left side of the oil storage tank, a tank cover fixedly mounted on the upper surface of the oil storage tank by screws, and a filling component fixedly mounted on the upper surface of the tank cover.
[0009] The filling assembly includes a cylinder, the output end of which is fixedly installed on the upper surface of the barrel cover. A pressure plate is fixedly installed through the barrel cover at the output end of the cylinder, and the outer diameter of the pressure plate is equal to the inner diameter of the oil storage tank.
[0010] The adjustment assembly includes an oil inlet pipe, the right end of which is fixedly installed to the lower left side of the oil storage tank, and an adjustment seat is fixedly installed to the left end of the oil inlet pipe. The left side of the adjustment seat is fixedly installed to the right end of the filling pipe. An adjustment plate is inserted into the inner cavity of the adjustment seat and passes through the adjustment seat. An adjustment screw is rotatably connected to the front side of the adjustment plate.
[0011] Preferably, a rubber ring is fixedly installed on the lower surface of the barrel lid, and the outer diameter of the rubber ring is equal to the inner diameter of the top of the oil storage barrel.
[0012] Preferably, a filter screen is fixedly installed on the protrusion inside the refueling pipe by screws.
[0013] Preferably, a limiting ring is fixedly installed in the inner cavity of the oil storage tank, and the limiting ring is located above the oil inlet pipe.
[0014] Preferably, three guide blocks are fixedly installed on the outer side of the pressure plate, and three guide grooves are opened in the inner cavity of the oil storage tank. The guide grooves are located above the limiting ring, and the inner cavity of the guide grooves is slidably connected to the outer side of the guide blocks.
[0015] Preferably, a bracket is fixedly installed on the front side of the adjusting seat, and a threaded tube is fixedly installed on the front side of the bracket, with the inner cavity of the threaded tube threadedly connected to the outer side of the adjusting screw.
[0016] Preferably, a wedge-shaped groove is formed on the upper surface of the inner cavity of the adjusting seat, and a wedge-shaped block is fixedly installed on the rear side of the upper surface of the adjusting plate, with the outer side of the wedge-shaped block slidably connected to the inner cavity of the wedge-shaped groove.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. This utility model provides a lubricating grease filling device for electric motors. A cylinder drives a pressure plate downwards, generating pressure to squeeze lubricating grease from a storage tank into an adjusting seat. The grease is then added to the motor's oil inlet via an adjusting plate and a filling pipe, achieving automatic lubricating grease filling. The cylinder serves as the power source to drive the pressure plate, ensuring stable and reliable downward pressure. Limiting rings, guide blocks, and guide grooves limit the pressure plate's movement, preventing grease from leaking above the outlet and causing grease blockage. This makes the device safer and more reliable to use.
[0019] 2. This utility model provides a lubricating grease filling device for electric motors. By adjusting the screw and threaded pipe to push the adjusting plate to move back and forth, the opening and closing of the oil inlet pipe can be controlled, and the size of the opening of the oil inlet pipe can be controlled, thereby controlling the amount of lubricating grease added, achieving the effect of quantitative filling. It has the function of manually controlling the amount of grease added. By utilizing the action of the wedge block and the wedge groove, the adjusting plate can move back and forth smoothly. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0022] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0023] Figure 4 This is an enlarged structural diagram of point B in this utility model;
[0024] Figure 5 This is a schematic diagram of the pressure plate structure of this utility model;
[0025] Figure 6 This is a schematic diagram of the adjustment component structure of this utility model.
[0026] In the diagram: 1. Mounting bracket; 2. Oil reservoir; 3. Filling pipe; 4. Adjusting assembly; 41. Adjusting seat; 42. Adjusting plate; 43. Bracket; 44. Wedge block; 45. Oil inlet pipe; 46. Adjusting screw; 47. Threaded pipe; 48. Wedge groove; 5. Oil filling pipe; 6. Tank lid; 7. Filling assembly; 71. Cylinder; 72. Pressure plate; 73. Limiting ring; 74. Guide block; 8. Rubber ring; 9. Guide groove; 10. Filter screen. Detailed Implementation
[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0028] like Figures 1-6As shown, a lubricating grease filling device for an electric motor includes an oil storage tank 2 fixedly mounted on the upper surface of a mounting bracket 1. An adjusting component 4 is fixedly mounted on the left side of the oil storage tank 2, and a filling pipe 3 is fixedly mounted on the left side of the adjusting component 4. A filling pipe 5 is fixedly mounted on the upper left side of the oil storage tank 2. A tank cover 6 is fixedly mounted on the upper surface of the oil storage tank 2 by screws. A filling component 7 is fixedly mounted on the upper surface of the tank cover 6. The filling component 7 includes a cylinder 71, the output end of which is fixedly mounted to the upper surface of the tank cover 6. A pressure plate 72 is fixedly mounted on the output end of the cylinder 71 through the tank cover 6. The diameter is equal to the inner diameter of the oil storage tank 2. The adjusting assembly 4 includes an oil inlet pipe 45. The right end of the oil inlet pipe 45 is fixedly installed on the lower left side of the oil storage tank 2. An adjusting seat 41 is fixedly installed on the left end of the oil inlet pipe 45. The left side of the adjusting seat 41 is fixedly installed on the right end of the filling pipe 3. An adjusting plate 42 is inserted into the inner cavity of the adjusting seat 41 and passes through the adjusting seat 41. An adjusting screw 46 is rotatably connected to the front side of the adjusting plate 42. A bracket 43 is fixedly installed on the front side of the adjusting seat 41. A threaded pipe 47 is fixedly installed on the front side of the bracket 43. The inner cavity of the threaded pipe 47 is threadedly connected to the outer side of the adjusting screw 46.
[0029] Lubricating grease is added to the oil storage tank 2 through the oil filling pipe 5. Then, the oil storage tank 2 is installed at the oil filling port of the motor through the mounting bracket 1, so that the filling pipe 3 is connected to the oil filling port of the motor. According to the running time of the motor and the grease maintenance and filling cycle of the motor, the grease is added. During grease filling, the adjusting screw 46 is rotated to drive the adjusting plate 42 to move forward, which can control the opening and closing of the oil inlet pipe 45 and the size of the opening, so that the oil inlet pipe 45, the filling pipe 3, the adjusting seat 41 are connected to the oil outlet of the oil storage tank 2. The cylinder 71 drives the pressure plate 72 to move down, generating pressure to squeeze the lubricating grease from the oil storage tank 2, so that it enters the adjusting seat 41, and is added to the oil filling port of the motor through the adjusting plate 42 and the filling pipe 3, achieving the purpose of automatic lubricating grease filling, so as to ensure that the motor can run stably. The cylinder 71 is used as a power source to drive the pressure plate 72 to move, ensuring that the pressure plate 72 presses down stably and reliably.
[0030] like Figure 2 As shown, a rubber ring 8 is fixedly installed on the lower surface of the barrel cover 6, and the outer diameter of the rubber ring 8 is equal to the inner diameter of the top of the oil storage tank 2.
[0031] The rubber ring 8 can seal the top of the oil storage tank 2, preventing lubricating grease from overflowing from the top of the oil storage tank 2.
[0032] like Figure 2 , Figure 3 As shown, the protrusion inside the refueling pipe 5 is fixed with a filter screen 10 by screws.
[0033] Mechanical impurities in the lubricating grease are filtered out by the filter screen 10 to ensure its lubrication effect.
[0034] like Figure 2 As shown, a limiting ring 73 is fixedly installed in the inner cavity of the oil storage tank 2, and the limiting ring 73 is located above the oil inlet pipe 45.
[0035] The limit ring 73 is set to limit the pressure plate 72 to prevent the pressure plate 72 from pressing over the oil outlet, causing lubricating grease to leak into the upper part of the pressure plate 72 and causing grease to get stuck, making it safer and more reliable to use.
[0036] like Figure 2 , Figure 4 , Figure 5 As shown, three guide blocks 74 are fixedly installed on the outer side of the pressure plate 72, and three guide grooves 9 are opened in the inner cavity of the oil storage tank 2. The guide grooves 9 are located above the limiting ring 73, and the inner cavity of the guide grooves 9 is slidably connected to the outer side of the guide blocks 74.
[0037] Through the action of the guide block 74 and the guide groove 9, the pressure plate 72 can move up and down smoothly to achieve stable extrusion of lubricating grease, which can reduce the resistance of the cylinder 71 pushing the pressure plate 72 to move up and down.
[0038] like Figures 1-6 As shown, a wedge-shaped groove 48 is provided on the upper surface of the inner cavity of the adjusting seat 41, and a wedge-shaped block 44 is fixedly installed on the rear side of the upper surface of the adjusting plate 42. The outer side of the wedge-shaped block 44 is slidably connected to the inner cavity of the wedge-shaped groove 48.
[0039] The movement of the adjusting plate 42 can be limited and guided by the action of the wedge block 44 and the wedge groove 48.
[0040] The working principle of this utility model is as follows: Lubricating grease is added to the oil storage tank 2 through the oil filling pipe 5, and mechanical impurities in the lubricating grease are filtered out by the filter screen 10 to ensure its lubrication effect. Then, the oil storage tank 2 is installed at the oil inlet of the motor through the mounting bracket 1, so that the filling pipe 3 is connected to the oil inlet of the motor. According to the running time of the motor and the grease maintenance and filling cycle of the motor, the oil filling operation is performed. During the filling, the adjusting screw 46 is rotated to drive the adjusting plate 42 and the wedge block 44 to move forward along the wedge groove 48, which can control the opening and closing of the oil inlet pipe 45 and the size of the opening, so that the oil inlet pipe 45, the filling pipe 3, the adjusting seat 41 and the oil outlet of the oil storage tank 2 are connected. The cylinder 71 drives the pressure The downward movement of plate 72 generates pressure that forces lubricating grease out of the oil reservoir 2 and into the adjusting seat 41. From there, it is added to the motor's oil inlet via the adjusting plate 42 and the filling pipe 3, achieving automatic lubricating grease filling. A cylinder 71 is used as the power source to drive the pressure plate 72, ensuring stable and reliable downward pressure. A limit ring 73, guide block 74, and guide groove 9 are installed to limit the pressure plate 72, preventing it from pressing past the oil outlet and causing lubricating grease to leak into the upper part of the pressure plate 72, thus preventing grease blockage. This makes the operation safer and more reliable. The system allows for periodic and quantitative lubricating grease filling of the motor, ensuring stable operation. It also features manual control of the lubrication amount.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A lubricating grease filling device for electric motors, comprising a mounting bracket (1), characterized in that: An oil storage tank (2) is fixedly installed on the upper surface of the mounting bracket (1). An adjustment component (4) is fixedly installed on the left side of the oil storage tank (2). A filling pipe (3) is fixedly installed on the left side of the adjustment component (4). A filling pipe (5) is fixedly installed on the upper left side of the oil storage tank (2). A tank cover (6) is fixedly installed on the upper surface of the oil storage tank (2) by screws. A filling component (7) is fixedly installed on the upper surface of the tank cover (6). The filling assembly (7) includes a cylinder (71), the output end of the cylinder (71) is fixedly installed on the upper surface of the barrel cover (6), and a pressure plate (72) is fixedly installed through the barrel cover (6) at the output end of the cylinder (71), and the outer diameter of the pressure plate (72) is equal to the inner diameter of the oil storage tank (2). The adjustment assembly (4) includes an oil inlet pipe (45), the right end of which is fixedly installed to the lower left side of the oil storage tank (2), the left end of which is fixedly installed with an adjustment seat (41), and the left side of the adjustment seat (41) is fixedly installed to the right end of the filling pipe (3). An adjustment plate (42) passing through the adjustment seat (41) is inserted into the inner cavity of the adjustment seat (41), and an adjustment screw (46) is rotatably connected to the front side of the adjustment plate (42).
2. The lubricating grease filling device for an electric motor according to claim 1, characterized by: A rubber ring (8) is fixedly installed on the lower surface of the barrel cover (6), and the outer diameter of the rubber ring (8) is equal to the inner diameter of the top of the oil storage tank (2).
3. The lubricating grease filling device for electric motors according to claim 1, characterized in that: The inner cavity of the refueling pipe (5) has a protrusion on which a filter screen (10) is fixedly installed by screws.
4. The lubricating grease filling device for electric motors according to claim 1, characterized in that: A limiting ring (73) is fixedly installed in the inner cavity of the oil storage tank (2), and the limiting ring (73) is located above the oil inlet pipe (45).
5. The lubricating grease filling device for an electric motor according to claim 3, characterized by: Three guide blocks (74) are fixedly installed on the outer side of the pressure plate (72). The inner cavity of the oil storage tank (2) is provided with three guide grooves (9), and the guide grooves (9) are located above the limiting ring (73). The inner cavity of the guide grooves (9) is slidably connected to the outer side of the guide blocks (74).
6. The lubricating grease filling device for electric motors according to claim 1, characterized in that: A bracket (43) is fixedly installed on the front side of the adjusting seat (41), and a threaded tube (47) is fixedly installed on the front side of the bracket (43). The inner cavity of the threaded tube (47) is threadedly connected to the outer side of the adjusting screw (46).
7. The lubricating grease filling device for an electric motor according to claim 1, characterized in that: The upper surface of the inner cavity of the adjusting seat (41) is provided with a wedge groove (48), and a wedge block (44) is fixedly installed on the rear side of the upper surface of the adjusting plate (42). The outer side of the wedge block (44) is slidably connected to the inner cavity of the wedge groove (48).