Electric actuator with automatic lubrication function
By using oil storage tanks and solenoid valve systems in the electric actuator to automatically replenish and replace lubricant oil, the problem of frequent lubricant replacement in the prior art is solved, and the operation stability and durability of the equipment are improved.
Patent Information
- Application Number
- CN202421422582.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-21
AI Technical Summary
Existing electric actuators require manual regular inspection and replacement of lubricant after long-term operation, and the replacement cycle is shortened when the load is large or the wear is severe, resulting in unstable operation and increased noise.
An electric actuator with automatic lubrication is designed, using an oil storage tank and solenoid valve system. The oil storage tank pre-stores lubricant, and the solenoid valve controls the automatic replenishment and discharge of lubricant to realize the automatic replacement of lubricant.
Through the automatic lubrication system, the lubricant oil replacement cycle is extended, manual intervention is reduced, the operating stability and durability of the electric actuator is improved, and the operating noise is reduced.
Smart Images
Figure CN222526998U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of actuators, in particular to an electric actuator with automatic lubrication. Background Art
[0002] In the industrial production process, electric actuators are widely used in various automatic control systems, such as the regulation and control of parameters such as temperature, pressure, flow, and liquid level. It can accurately control the opening of the valve or the rotation angle of the baffle, thereby achieving precise control of the flow, pressure, or liquid level of the fluid medium, ensuring the stability of the production process and product quality. Since the electric actuator adopts a mechanical transmission structure, in order to ensure the smooth operation of the electric actuator and reduce wear, it is necessary to add lubricating oil to it.
[0003] In the related technology, the most common method is to add an appropriate amount of lubricating oil to the gearbox of the electric actuator to reduce mechanical wear and operating noise. The lubrication condition of the electric actuator needs to be checked after about 50 hours of operation. If the electric actuator is under heavy load, the inspection cycle should be shortened. When the electric actuator is working, metal shavings may be generated due to mechanical wear, causing more serious wear. In order to prevent the lubricating oil from deteriorating, it also needs to be replaced regularly. However, the lubricating oil of the electric actuator is mostly replaced manually, which is not convenient enough. Utility Model Content
[0004] The purpose of the utility model is to provide an electric actuator with automatic lubrication to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solutions: an electric actuator with automatic lubrication, comprising a gear box, a motor is installed on the gear box, and the motor is in transmission connection with the gear box, the gear box has an output shaft, and the output shaft is used to connect with the valve, the motor controls the output shaft to rotate through the gear box, and the output shaft drives the valve to rotate, so as to realize the automatic opening and closing of the valve;
[0006] An oil storage tank, wherein the oil outlet of the oil storage tank is connected to a first solenoid valve, the first solenoid valve is communicated with the gear box, and the first solenoid valve controls the oil stored in the oil storage tank to flow into the gear box. The oil storage tank can store some lubricating oil in advance for subsequent use, and the opening time of the solenoid valve can be set to regularly replenish the lubricating oil to the gear box;
[0007] An oil receiving box is located below the gear box. A second solenoid valve is installed on the bottom of the gear box. The second solenoid valve controls the discharge of oil in the gear box to prevent the lubricating oil from falling to the ground, so that the oil can be recycled.
[0008] Furthermore, a crank is installed on the surface of the gear box, and the crank is transmission-connected to the gear box. The crank is used to manually control the rotation of the output shaft. When the motor fails, the crank can be rotated to manually open the valve.
[0009] Furthermore, a handle screw is threaded on the side of the gear box, a fixing strip is sleeved on the handle screw, and the fixing strip is connected to the oil collecting box. The fixing strip can be removed by unscrewing the handle screw, and then the lubricating oil in the oil collecting box can be poured out and recycled.
[0010] Furthermore, the gear box is provided with a detection port, in which an oil dipstick is threaded, and the color state and the remaining amount of the lubricating oil in the gear box can be checked by unscrewing the oil dipstick, so as to facilitate judgment on whether the lubricating oil needs to be replaced.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] (1) Spare lubricating oil is stored in the oil storage tank. When the lubricating oil in the gear box needs to be replaced, the second solenoid valve is opened first to discharge the lubricating oil in the gear box into the oil receiving box. Then the first solenoid valve is opened, and the lubricating oil in the oil storage tank flows into the gear box, automatically replenishing the lubricating oil in the gear box, realizing automatic replacement of the lubricating oil, and the cycle of manual replacement of the lubricating oil is longer.
[0013] (2) Unscrewing the sealing bolt can add lubricating oil to the oil tank. The oil dipstick can be used to check the state of the lubricating oil in the gear box. The lubricating oil can be checked. After unscrewing the handle screw, the fixing strip and the oil box can be removed to facilitate the removal of the used lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a top view of the utility model;
[0015] Figure 2 It is a schematic structural diagram of the connection between the gear box and the first solenoid valve of the utility model.
[0016] In the figure: 1. gear box; 2. motor; 3. output shaft; 4. crank; 5. oil storage tank; 6. sealing bolt; 7. oil dipstick; 8. control box; 9. electrical connector; 10. first solenoid valve; 11. second solenoid valve; 12. handle screw; 13. fixing strip; 14. oil collecting box. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] Example:
[0019] See also Figure 1-2 The utility model provides a technical solution: an electric actuator with automatic lubrication, comprising a gear box 1, a motor 2 is installed on the gear box 1, and the motor 2 is connected to the gear box 1 in a transmission manner, the gear box 1 has an output shaft 3, and the output shaft 3 is used to connect with the valve, the motor 2 automatically controls the output shaft 3 to rotate, and the gear box 1 can increase the torque of the motor 2, so that the output shaft 3 drives the valve to rotate more stably;
[0020] An oil storage tank 5, wherein the oil outlet of the oil storage tank 5 is connected to a first solenoid valve 10, the first solenoid valve 10 is in communication with the gear box 1, the first solenoid valve 10 controls the oil stored in the oil storage tank 5 to flow into the gear box 1, the oil storage tank 5 pre-stores some lubricating oil, which is convenient for automatically replenishing lubricating oil for the gear box 1, the first solenoid valve 10 can control the outflow of lubricating oil in the oil storage tank 5, and the first solenoid valve 10 can be set to open at a timer, which is convenient for regularly adding lubricating oil to the gear box 1;
[0021] The oil receiving box 14 is located below the gear box 1. A second solenoid valve 11 is installed on the bottom surface of the gear box 1. The second solenoid valve 11 controls the discharge of oil in the gear box 1. When the second solenoid valve 11 is opened, the lubricating oil that needs to be replaced and the metal chips generated by the mechanical wear of the gear box 1 can be discharged.
[0022] In this embodiment, if Figure 1 As shown, a control box 8 is mounted on the surface of the gear box 1 , and an electrical connector 9 is mounted on the control box 8 . The control box 8 can monitor the operating status of the gear box 1 , and the electrical connector 9 can be connected to wires to supply power to the electric actuator.
[0023] In this embodiment, if Figure 1 As shown, a crank 4 is installed on the surface of the gear box 1, and the crank 4 is transmission-connected to the gear box 1. The crank 4 is used to manually control the rotation of the output shaft 3. Rotating the crank 4 can replace the motor 2 to control the rotation of the output shaft 3, and cooperate with the motor 2 to realize manual and automatic control of the electric actuator.
[0024] In this embodiment, if Figure 2As shown, a handle screw 12 is threaded on the side of the gear box 1, and a fixing strip 13 is sleeved on the handle screw 12. The fixing strip 13 is connected to the oil collecting box 14. The handle screw 12 is convenient for direct hand tightening, and the fixing strip 13 fixes the oil collecting box 14. The handle screw 12 is unscrewed from the gear box 1, so that the oil collecting box 14 can be easily removed.
[0025] In this embodiment, if Figure 1 and Figure 2 As shown, the oil storage tank 5 is provided with an oil filling port, in which a sealing bolt 6 is threaded. After unscrewing the sealing bolt 6, lubricating oil can be added to the oil storage tank 5. The sealing bolt 6 can prevent impurities from entering the oil storage tank 5.
[0026] In this embodiment, if Figure 1 and Figure 2 As shown, the gear box 1 is provided with a detection port, and an oil dipstick 7 is screwed into the detection port. The oil dipstick 7 is used to check the state and residual amount of the lubricating oil in the gear box 1, so as to confirm whether the lubricating oil needs to be replaced or supplemented.
[0027] Specifically, during use, lubricating oil is pre-stored in the oil storage tank 5. The opening cycle of the first solenoid valve 10 and the second solenoid valve 11 is set according to the replacement cycle of the lubricating oil. When the lubricating oil in the gear box 1 needs to be replaced, the second solenoid valve 11 is opened first to discharge the lubricating oil in the gear box 1 into the oil receiving box 14 through the second solenoid valve 11, and then the second solenoid valve 11 is closed, and then the first solenoid valve 10 is opened, and the lubricating oil in the oil storage tank 5 flows into the gear box 1 along the first solenoid valve 10, so as to realize automatic replenishment of the lubricating oil. The closing of the first solenoid valve 10 can separate the gear box 1 from the lubricating oil in the oil storage tank 5, and prevent the lubricating oil in the oil storage tank 5 from being affected by the gear box 1. After unscrewing the handle screw 12, the lubricating oil in the oil receiving box 14 can be poured out for easy recycling.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An electric actuator with automatic lubrication, characterized in that: include: A gear box (1), wherein a motor (2) is mounted on the gear box (1), and the motor (2) is in driving connection with the gear box (1), and the gear box (1) has an output shaft (3), and the output shaft (3) is used to be connected to a valve; An oil storage tank (5), wherein an oil outlet of the oil storage tank (5) is connected to a first solenoid valve (10), the first solenoid valve (10) is in communication with the gear box (1), and the first solenoid valve (10) controls the oil stored in the oil storage tank (5) to flow into the gear box (1); An oil receiving box (14) is located below the gear box (1). A second solenoid valve (11) is installed on the bottom surface of the gear box (1). The second solenoid valve (11) controls the discharge of oil in the gear box (1).
2. The electric actuator with automatic lubrication according to claim 1, characterized in that: A control box (8) is mounted on the surface of the gear box (1), and an electrical connector (9) is mounted on the control box (8).
3. The electric actuator with automatic lubrication according to claim 1, characterized in that: A crank (4) is mounted on the surface of the gear box (1), and the crank (4) is in transmission connection with the gear box (1), and the crank (4) is used to manually control the rotation of the output shaft (3).
4. The electric actuator with automatic lubrication according to claim 1, characterized in that: A handle screw (12) is threadedly connected to the side of the gear box (1), a fixing strip (13) is sleeved on the handle screw (12), and the fixing strip (13) is connected to the oil receiving box (14).
5. The electric actuator with automatic lubrication according to claim 1, characterized in that: The oil storage tank (5) is provided with an oil replenishing port, and a sealing bolt (6) is threadedly connected in the oil replenishing port.
6. The electric actuator with automatic lubrication according to claim 1, characterized in that: The gear box (1) is provided with a detection port, and an oil dipstick (7) is threaded into the detection port.