Motor control structure with limiting mechanism
By introducing a limit mechanism into the hydraulic gate air nitrogen generator and utilizing a combination of a pressure sensor and an impact ring, precise control of the servo motor is achieved, solving the problems of motor overheating and decreased movement accuracy caused by long-term operation in the hydraulic gate air nitrogen generator, and improving the stability and flexibility of the equipment.
Patent Information
- Application Number
- CN202422802127.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The servo motor in the hydraulic gate air nitrogen generator is prone to overheating or wear during long-term continuous operation, and cannot control the reverse movement in time, resulting in a decrease in movement accuracy.
A motor control structure with a limit mechanism is adopted, including components such as a mounting plate, a fixing plate, a fixing disk, a screw, a servo motor, a pressure sensor and a spring. The servo motor is precisely controlled through the contact between the pressure sensor and the impact ring, and the forward and reverse rotation of the motor is achieved through the impact switch when the sensor is insensitive.
The movement accuracy and control sensitivity of the servo motor are improved, overheating and wear are avoided, and the stable operation of the motor is ensured under limit conditions.
Smart Images
Figure CN223462865U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor control field especially relates to a motor control structure with limiting mechanism. BACKGROUND
[0002] The water conservancy gate air nitrogen machine is a kind of equipment using air as raw material, and nitrogen is obtained by separating oxygen and nitrogen in air by physical method. The pressure swing adsorption nitrogen equipment uses carbon molecular sieve as adsorbent, and nitrogen is obtained by using pressure swing adsorption principle. Under certain pressure, the diffusion rate of nitrogen and oxygen in air on carbon molecular sieve is quite different, that is, the adsorption speed of oxygen on carbon molecular sieve is much greater than that of nitrogen, and nitrogen molecules are enriched in gas phase.
[0003] When the water conservancy gate air nitrogen machine is used, the servo motor needs to be controlled to move up and down, to effectively avoid overheating or wear caused by long-time continuous operation, but when the servo motor moves to the lowermost end and the uppermost part, the motor cannot be controlled to move reversely in time, which easily causes the up-and-down moving precision of the servo motor to decrease. UTILITY MODEL CONTENTS
[0004] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide a motor control structure with limiting mechanism.
[0005] One of the purposes of the utility model is realized by adopting the following technical scheme: a motor control structure with limiting mechanism, comprising a mounting plate: a limiting unit is arranged on the right side of the mounting plate, a sliding groove is formed on the right side of the mounting plate, a sliding block is slidably connected to the inner side of the sliding groove, a connecting rod is fixedly connected to the right side of the sliding block, a servo motor is fixedly connected to the right end of the connecting rod, and a pressure sensor is fixedly connected to the upper and lower sides of the servo motor.
[0006] The limiting unit comprises a fixed plate, the fixed plate is fixedly connected to the right side of the upper and lower ends of the mounting plate, a fixed rod is fixedly connected to the side of the fixed plate close to the servo motor on the upper and lower sides, a fixed disc is fixedly connected to the outer side of the fixed rod, and a screw rod is rotatably connected between the fixed discs on the upper and lower sides.
[0007] According to the motor control structure with limiting mechanism, the upper side of the upper fixed plate is fixedly connected with a motor, and the output end of the motor is fixedly connected with the upper end of the screw rod.
[0008] According to the motor control structure with limiting mechanism, a plurality of moving rods are arranged on the outer side of the fixed disc, one end of the moving rod close to the servo motor penetrates through the outer side of the fixed disc and is fixedly connected with a striking ring, the other end of the moving rod is fixedly connected with a contact plate, and a spring is fixedly connected between the outer side of the contact plate and the fixed disc.
[0009] According to the motor control structure with the limiting mechanism, the moving rod is in sliding connection with the fixed disc.
[0010] According to the motor control structure with the limiting mechanism, the fixed plate is fixedly connected with the switch on the side close to the servo motor.
[0011] According to the motor control structure with the limiting mechanism, the screw rod is in threaded connection with the servo motor.
[0012] According to the motor control structure with the limiting mechanism, the number of the springs is four.
[0013] Beneficial effects:
[0014] By means of the mounting plate, the fixed plate, the fixed disc, the screw rod, the servo motor and the pressure sensor, the servo motor is in contact with the pressure sensor, the servo motor is repeatedly moved up and down, the contact ring, the spring, the impact ring and the switch are used, the screw rod is controlled to rotate in opposite directions when the pressure sensor is not sensitive, and the control sensitivity is improved.
[0015] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0016] The present application will be further described below in combination with the drawings and embodiments.
[0017] Figure 1 It is a whole three-dimensional structure diagram of the motor control structure with the limiting mechanism.
[0018] Figure 2 It is a three-dimensional structure diagram of the limiting unit in the motor control structure with the limiting mechanism.
[0019] Figure 3 It is a partial three-dimensional structure diagram of the limiting unit in the motor control structure with the limiting mechanism.
[0020] Figure 4 It is Figure 3 It is an enlarged view of A in the figure.
[0021] LEGEND
[0022] 1, mounting plate; 2, limiting unit; 201, fixed plate; 202, fixed rod; 203, fixed disc; 204, motor; 205, screw; 206, switch; 207, moving rod; 208, contact plate; 209, spring; 210, impact ring; 3, sliding groove; 4, sliding block; 5, connecting rod; 6, servo motor; 7, pressure sensor. DETAILED DESCRIPTION
[0023] This part will describe the specific embodiments of the utility model in detail, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0024] Reference Figure 1 - Figure 4 A motor control structure with a limiting mechanism, including mounting plate 1: the right side of mounting plate 1 is provided with limiting unit 2, the right side of mounting plate 1 is provided with sliding groove 3, the inner side of sliding groove 3 is slidably connected with sliding block 4, the right side of sliding block 4 is fixedly connected with connecting rod 5, the right end of connecting rod 5 is fixedly connected with servo motor 6, the upper and lower sides of servo motor 6 are both fixedly connected with pressure sensor 7, wherein pressure sensor 7 and switch 206 are electrically connected with external PLC controller, facilitating the forward and reverse rotation of motor 204.
[0025] Limiting unit 2 includes fixed plate 201, which is fixedly connected to the right side of the upper and lower ends of mounting plate 1, the side close to servo motor 6 of the upper and lower sides of fixed plate 201 is fixedly connected with fixed rod 202, the outer side of fixed rod 202 is fixedly connected with fixed disc 203, screw 205 is rotatably connected between the upper and lower sides of fixed disc 203, the upper side of upper fixed plate 201 is fixedly connected with motor 204, the output end of motor 204 is fixedly connected with the upper end of screw 205, screw 205 is threadedly connected with servo motor 6, when controlling the operation of the water conservancy gate nitrogen machine, start servo motor 6, control servo motor 6 to drive the nitrogen machine to rotate, when it is needed to control the up and down repeated movement of servo motor 6, start motor 204, motor 204 drives screw 205 to rotate, screw 205 drives servo motor 6 to move up and down, when servo motor 6 moves, control pressure sensor 7 to move, pressure sensor 7 contacts with impact ring 210, generates pressure signal, facilitates the forward and reverse rotation of motor 204, facilitates limiting, the model of pressure sensor 7 and switch 206 is MPX2010.
[0026] The outer side of the fixed disc 203 is provided with a plurality of moving rods 207, one end of the moving rod 207 is fixedly connected with the impact ring 210 and passes through the outer side of the fixed disc 203, the other end of the moving rod 207 is fixedly connected with the contact plate 208, the outer side of the contact plate 208 is fixedly connected with the spring 209 between the fixed disc 203, the number of the spring 209 is four, the moving rod 207 is slidingly connected with the fixed disc 203, the fixed plate 201 is fixedly connected with the switch 206 on one side close to the servo motor 6, the servo motor 6 drives the impact ring 210 to move, the impact ring 210 drives the moving rod 207 to move, the moving rod 207 drives the contact plate 208 to move, so that the contact plate 208 impacts the switch 206, the switch 206 is opened, the switch 206 is electrically connected with the motor 204, when the pressure sensor 7 is not sensitive, the motor 204 is controlled to reverse through the switch 206, and the sensitivity of the control is increased.
[0027] Working principle: in use, the staff starts the motor 204, the motor 204 drives the screw 205 to rotate, controls the servo motor 6 to move up and down, the servo motor 6 drives the pressure sensor 7 to move, so that the pressure sensor 7 is in contact with the impact ring 210, the motor 204 is conveniently controlled to rotate reversely, when the pressure sensor 7 is not sensitive, the servo motor 6 drives the impact ring 210 to move, under the action of the moving rod 207 and the contact plate 208, the switch 206 is impacted, the motor 204 is conveniently controlled to rotate reversely, the sensitivity of the servo motor 6 to rotate reversely is increased.
[0028] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, within the knowledge range possessed by ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.
Claims
1. A motor control structure with a position-limiting mechanism, characterized by, The utility model provides an installation plate (1) is provided with a limiting unit (2) on the right side of the installation plate (1), a sliding groove (3) is formed on the right side of the installation plate (1), a sliding block (4) is slidably connected to the inner side of the sliding groove (3), a connecting rod (5) is fixedly connected to the right side of the sliding block (4), a servo motor (6) is fixedly connected to the right end of the connecting rod (5), and pressure sensors (7) are fixedly connected to the upper and lower sides of the servo motor (6). The limiting unit (2) comprises a fixed plate (201) fixedly connected to the right side of the upper and lower ends of the installation plate (1), and fixed rods (202) are fixedly connected to the sides of the fixed plate (201) close to the servo motor (6) on the upper and lower sides.
2. The motor control structure with a limiting mechanism according to claim 1, wherein, The upper side of the fixed plate (201) is fixedly connected to an electric machine (204), and the output end of the electric machine (204) is fixedly connected to the upper end of the screw rod (205).
3. The motor control structure with a position-limiting mechanism according to claim 1, wherein, The outer side of the fixed disc (203) is provided with a plurality of moving rods (207), one end of the moving rod (207) close to the servo motor (6) penetrates the outer side of the fixed disc (203) and is fixedly connected to an impact ring (210), the other end of the moving rod (207) is fixedly connected to a contact plate (208), and the outer side of the contact plate (208) and the fixed disc (203) are fixedly connected to springs (209).
4. The motor control structure with a position-limiting mechanism according to claim 3, wherein, The moving rod (207) and the fixed disc (203) are slidably connected.
5. The motor control structure with a position-limiting mechanism according to claim 1, wherein, The side of the fixed plate (201) close to the servo motor (6) is fixedly connected to a switch (206).
6. The motor control structure with a position-limiting mechanism according to claim 1, wherein, The screw rod (205) is threadedly connected to the servo motor (6).
7. The motor control structure with a position-limiting mechanism according to claim 3, wherein, The number of springs (209) is four.