High-speed actuator
By introducing a water pipe interface for heat dissipation, a gravity balancing device, and a magnetic holding mechanism into the linear motor, the heat dissipation and vertical installation problems of the linear motor are solved, achieving efficient heat dissipation and safe and reliable vertical use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-20
AI Technical Summary
Linear motors have difficulty dissipating heat during high-speed operation and are difficult to install vertically, affecting their insulation performance and service life. In addition, the loss of force between the stator and the mover when the power is off leads to safety issues.
A high-speed actuator was designed, which includes a frame, a water pipe interface for heat dissipation, a gravity balancing device to maintain the stability of the stator when the power is off, and the stator is kept in any position by the magnetic force of the magnetic shaft and magnetic sleeve. Combined with linear guide rails and anti-collision rubber, it ensures stable movement.
It achieves effective heat dissipation, ensures insulation performance and service life, and ensures safety and reliability in vertical installation and power failure conditions, preventing stator drop and maintaining motion stability.
Smart Images

Figure CN224021522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing instrument technology, and in particular to high-speed actuators. Background Technology
[0002] Linear motors are based on electromagnetic induction, generating thrust through the interaction between the stator and the mover to achieve linear motion. The stator is usually fixed, while the mover moves along the stator. Linear motors are widely used in the manufacture of electronic components, semiconductor equipment, laser processing, and precision machine tools because they are characterized by good stability, high speed, high precision, simple manufacturing, no contact between the mover and stator, long lifespan, and high reliability. In recent years, the market demand for linear motors has been steadily increasing.
[0003] When a linear motor moves at high speed, the coil windings are energized, and the motor effect generates a lot of heat. Under the same current, the greater the motor resistance, the more heat is generated. If this heat accumulates inside the motor, it will affect the motor's insulation performance and service life. Therefore, heat dissipation of linear motors is a problem that must be considered.
[0004] Due to the inherent structural limitations of linear motors, the force between the stator and the mover disappears when power is cut off. Therefore, linear motors on the market are mainly used for horizontal installation, which greatly restricts their use in applications requiring vertical installation. Utility Model Content
[0005] This invention aims to solve the technical problems of how to dissipate heat from linear motors and how to vertically install and use linear motors in the prior art, and provides a high-speed actuator.
[0006] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:
[0007] A high-speed actuator, characterized in that it comprises:
[0008] The frame includes: a stator mounting plate, a mover mounting plate, and a support plate. A plurality of stators are mounted on the stator mounting plate and slide in cooperation with the support plate. A mover is mounted on the mover mounting plate. The support plate is used to adjust the distance between the stator and the mover and is fixedly connected to the mover mounting plate.
[0009] The moving part has a water pipe interface for heat dissipation;
[0010] A gravity balancing device used to balance the weight of the stator, stator mounting plate, and the parts fixed above it;
[0011] The connecting column has one end fixedly connected to the stator mounting plate and the other end fixedly connected to external parts.
[0012] Furthermore, the frame also includes two end plates, which are fixedly connected to both ends of the mover mounting plate, respectively.
[0013] Furthermore, linear guide rails are fixedly installed on both sides of the stator mounting plate, and a slider is fixedly installed on the support plate, with the slider slidingly engaging with the linear guide rails.
[0014] Furthermore, the gravity balancing device includes a magnetic shaft, a magnetic shaft seat, a magnetic sleeve, and a magnetic sleeve seat; the magnetic shaft seat is used to fix the magnetic shaft and is fixedly connected to the support plate; the magnetic sleeve seat is used to fix the magnetic sleeve and is fixedly connected to the stator mounting plate; the magnetic force of the magnetic shaft and the magnetic sleeve can keep the stator mounting plate in any position.
[0015] Furthermore, anti-collision rubber is also installed on the side of the end plate facing the stator mounting plate.
[0016] Furthermore, anti-collision rubber is installed at both the upper and lower ends of the stator mounting plate.
[0017] This utility model has the following beneficial effects:
[0018] The high-speed actuator disclosed herein has a water pipe interface on the mover, which can be connected to external cooling water, which helps to dissipate heat from the high-speed actuator and ensures the insulation performance and service life of the high-speed actuator; a gravity balancing device is provided, which ensures that when the high-speed actuator is used vertically, even if the power is off, the stator and its components can remain in any position, preventing them from falling naturally due to gravity, and ensuring safe and reliable use. Attached Figure Description
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0020] Figure 1 This is a front view schematic diagram of the high-speed actuator of this utility model;
[0021] Figure 2 This is a side view schematic diagram of the high-speed actuator of this utility model;
[0022] Figure 3 This is a cross-sectional view (AA) of the high-speed actuator of this utility model;
[0023] Figure 4 This is a three-dimensional schematic diagram of the high-speed actuator of this utility model.
[0024] The reference numerals in the figure are:
[0025] 1. Frame; 101. Stator mounting plate; 102. Mover mounting plate; 103. Support plate; 104. End plate; 105. Linear guide rail; 106. Slider; 107. Anti-collision rubber; 2. Stator; 3. Mover; 4. Gravity balancing device; 401. Magnetic shaft; 402. Magnetic shaft seat; 403. Magnetic sleeve; 404. Magnetic sleeve seat; 5. Connecting column. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-4 A high-speed actuator, characterized in that it comprises:
[0028] Frame 1 includes: stator mounting plate 101, mover mounting plate 102, and support plate 103. A plurality of stators 2 are mounted on the stator mounting plate 101 and slide in cooperation with the support plate 103. A mover 3 is mounted on the mover mounting plate 102. The support plate 103 is used to adjust the distance between the stators 2 and the movers 3 and is fixedly connected to the mover mounting plate 102.
[0029] The moving part 3 has a water pipe interface for heat dissipation;
[0030] Gravity balancing device 4, which is used to balance the weight of stator 2, stator mounting plate 101 and the parts fixed above it;
[0031] The connecting column 5 has one end fixedly connected to the stator mounting plate 101 and the other end fixedly connected to an external part.
[0032] Working principle: When energized, the mover 3 is energized, and a force is generated between the mover 3 and the stator 2, which allows the stator 2 to move up and down. Ultimately, the stator mounting plate 101 and the connecting column 5 move up and down, applying the required force or displacement to the external equipment.
[0033] The water pipe interface can be connected to external cooling water, which helps to dissipate heat from the high-speed actuator and ensures the insulation performance and service life of the high-speed actuator. A gravity balance device is set up so that when the high-speed actuator is used vertically, even if the power is off, the stator 2 and its components can be kept in any position to prevent them from falling naturally due to gravity, thus ensuring safe and reliable use.
[0034] Specifically, the frame 1 also includes two end plates 104, which are fixedly connected to both ends of the mover mounting plate 102 respectively.
[0035] The purpose of setting the end plate 104 is to facilitate the installation of this high-speed actuator onto external equipment. It is equipped with a positioning stop for easy positioning; at the same time, it can increase the rigidity of the frame 1.
[0036] Specifically, linear guide rails 105 are fixedly installed on both sides of the stator mounting plate 101, and sliders 106 are fixedly installed on the support plate 103, with sliders 106 slidingly engaging with linear guide rails 105.
[0037] like Figure 3 As shown, linear guide rails 105 are fixedly installed on both sides of the stator mounting plate 101. When energized, a force is generated between the mover 3 and the stator 2, and the stator 2, stator mounting plate 101, and linear guide rails 105 can move up and down along the slider 106. The linear guide rails 105 ensure that the stator mounting plate 101 moves strictly along the linear guide rails 105, preventing the stator mounting plate 101 from shaking or shifting during movement, thus enabling the high-speed actuator to achieve high-speed movement.
[0038] Specifically, the gravity balancing device 4 includes a magnetic shaft 401, a magnetic shaft seat 402, a magnetic sleeve 403, and a magnetic sleeve seat 404; the magnetic shaft seat 402 is used to fix the magnetic shaft 401 and is fixedly connected to the support plate 103; the magnetic sleeve seat 404 is used to fix the magnetic sleeve 403 and is fixedly connected to the stator mounting plate 101; the magnetic force of the magnetic shaft 401 and the magnetic sleeve 403 can keep the stator mounting plate 101 in any position.
[0039] A magnetic force is generated between the magnetic shaft 401 and the magnetic sleeve 403. This magnetic force can balance the weight of the stator 2, the stator mounting plate 101 and the accessories on the stator mounting plate 101. Once the power is cut off, the stator mounting plate 101 and its accessories can stay in any position without falling off. This can effectively prevent damage to external workpieces during operation and ensure that this high-speed actuator can be used safely.
[0040] Specifically, anti-collision rubber 107 is also installed on the side of the end plate 104 facing the stator mounting plate 101.
[0041] Specifically, anti-collision rubber 107 is installed at the upper and lower ends of the stator mounting plate 101.
[0042] An anti-collision rubber 107 is provided on the stator mounting plate 101 and the end plate 104. In the event of loss of control or misoperation, the stator mounting plate 101 will collide with the anti-collision rubber 107. Due to the shock absorption effect of the anti-collision rubber 107, the stator mounting plate 101 or the end plate 104 can be protected from damage. This ensures that even if the high-speed actuator loses control or is misoperated, it will not cause damage and thus guarantees its service life.
[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. A high-speed actuator, characterized in that, include: The frame (1) includes: a stator mounting plate (101), a mover mounting plate (102), and a support plate (103). A plurality of stators (2) are mounted on the stator mounting plate (101) and are slidably engaged with the support plate (103). A mover (3) is mounted on the mover mounting plate (102). The support plate (103) is used to adjust the distance between the stator (2) and the mover (3) and is fixedly connected to the mover mounting plate (102). The moving part (3) has a water pipe interface for heat dissipation; Gravity balancing device (4) is used to balance the weight of the stator (2), stator mounting plate (101) and the parts fixed above it; The connecting column (5) is fixedly connected at one end to the stator mounting plate (101) and at the other end to an external part.
2. The high-speed actuator as described in claim 1, characterized in that, The frame (1) also includes two end plates (104), which are fixedly connected to both ends of the mover mounting plate (102).
3. The high-speed actuator as described in claim 1, characterized in that, Linear guide rails (105) are fixedly installed on both sides of the stator mounting plate (101), and sliders (106) are fixedly installed on the support plate (103). The sliders (106) slide in cooperation with the linear guide rails (105).
4. The high-speed actuator as described in claim 1, characterized in that, The gravity balancing device (4) includes a magnetic shaft (401), a magnetic shaft seat (402), a magnetic sleeve (403), and a magnetic sleeve seat (404); the magnetic shaft seat (402) is used to fix the magnetic shaft (401) and is fixedly connected to the support plate (103); the magnetic sleeve seat (404) is used to fix the magnetic sleeve (403) and is fixedly connected to the stator mounting plate (101); the magnetic force of the magnetic shaft (401) and the magnetic sleeve (403) can keep the stator mounting plate (101) at any position.
5. The high-speed actuator as described in claim 2, characterized in that, Anti-collision rubber (107) is also installed on the side of the end plate (104) facing the stator mounting plate (101).
6. The high-speed actuator as described in claim 2, characterized in that, Anti-collision rubber (107) is installed at both the upper and lower ends of the stator mounting plate (101).