Servo motor with high protection grade

Abstract

The utility model discloses a servo motor with a high protection grade, which particularly relates to the technical field of servo motors and comprises a servo motor, a wire box fixed at the top of the servo motor and a driving shaft arranged at the output end of the servo motor, and one end, close to the driving shaft, of the servo motor is connected with a sealing plate through a bolt. A sealing ring is embedded in the middle of the sealing plate, protective shells are symmetrically arranged on the two sides of the servo motor, and reinforcing ribs are fixedly connected to the surfaces of the protective shells. According to the utility model, the strength of the protective shell can be enhanced through the arranged reinforcing ribs, so that the protective strength is improved, heat generated by the servo motor can be absorbed through fitting of the heat conducting plate and the wall body of the servo motor, and the heat is conducted to the heat dissipation plate and the heat dissipation fin strips through the heat conducting strips; therefore, heat on the surfaces of the heat dissipation plate and the heat dissipation fin strips is discharged through the fan, the heat dissipation effect is achieved, and normal heat dissipation use of the servo motor is not affected.

Description

Technical Field

[0001] This utility model relates to the field of servo motor technology, and more specifically, to a high-protection-level servo motor. Background Technology

[0002] Servo motors, as high-precision control motors, are widely used in many fields such as industrial automation, robotics, and CNC machine tools. In practical applications, many scenarios involve complex environmental factors such as dust, moisture, and corrosive gases, which places extremely high demands on the protective performance of servo motors.

[0003] Chinese patent application CN202320024060.1 discloses a servo motor, including a servo motor body and a front cover. An output shaft is installed on the side of the front cover away from the servo motor body, and a rear cover is installed on the side of the servo motor body away from the front cover. By passing the end of a connecting block through a first locking block and extending to the side of a second locking block away from the first locking block, and then passing the end of a threaded rod through the connecting block and connecting it to a first protective shell and a second protective shell respectively, the first and second protective shells are tightly connected together. When it is necessary to disassemble or assemble the first and second protective shells, the threaded rod on the connecting block is rotated in the opposite direction, causing the end of the threaded rod to disengage from the first and second protective shells. Then, the connecting block is pulled away from the first and second locking blocks, thus enabling the disassembly or assembly of the first and second protective shells.

[0004] However, as can be seen from the accompanying drawings in the instruction manual, simply protecting the motor with a protective cover will affect the motor's heat dissipation. Furthermore, the protective cover has a simple structure and low protection strength, and it will still affect the internal motor housing when subjected to a large impact. Therefore, a servo motor with a high protection level is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-protection-level servo motor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-protection-level servo motor, comprising a servo motor, an electrical box fixed to the top of the servo motor, and a drive shaft disposed at the output end of the servo motor. A sealing plate is bolted to one end of the servo motor near the drive shaft. A sealing ring is embedded in the middle of the sealing plate. The sealing plate and the sealing ring seal the gap between the servo motor and the drive shaft, improving the sealing strength and preventing dust or moisture from entering the servo motor and affecting its performance. Protective shells are symmetrically arranged on both sides of the servo motor. Reinforcing ribs are fixedly connected to the surface of the protective shells. The protective shells and reinforcing ribs protect the exterior of the servo motor and improve the protection strength level by increasing the reinforcing ribs, preventing damage to the servo motor due to collisions.

[0007] Connecting strips are fixedly connected to the opposite side walls of the two protective shells. A first sliding strip and a second sliding strip are slidably disposed in the middle of the connecting strips. Push blocks are fixedly connected to the surfaces of the first and second sliding strips. The two protective shells are easily locked together by the cooperation of the connecting strips with the second and first sliding strips. Mounting plates are symmetrically fixedly connected to the bottom two sides of the protective shells. The mounting plates facilitate installation and fixation in the set position. Fans are symmetrically fixedly connected to the opposite sides of the two protective shells for heat dissipation.

[0008] A heat-conducting plate is provided on one side of the inner cavity of the protective shell. Multiple springs and heat-conducting strips are fixedly connected to one side of the heat-conducting plate. A heat dissipation plate is fixedly connected to the outside of the protective shell. A heat dissipation fin is fixedly connected to one side of the heat dissipation plate. By adhering the heat-conducting plate to the wall of the servo motor, the heat generated inside the servo motor can be absorbed. The heat is then introduced into the interior of the heat dissipation fins through the heat-conducting strips. Finally, the heat on the surface of the heat dissipation fins is blown away by the dustproof net to achieve the heat dissipation function.

[0009] Preferably, the sealing plate is fitted around the middle of the drive shaft, the wall of the sealing ring is in contact with the wall of the drive shaft, and an annular groove is formed on the surface of the drive shaft at a position corresponding to the sealing ring. The sealing ring is disposed inside the annular groove. The sealing plate limits and supports the sealing ring, and the sealing ring seals the gap between the drive shaft and the servo motor, thereby improving the performance.

[0010] Preferably, the protective shell is adapted to the servo motor, the reinforcing ribs are configured with a "well" shape, and the reinforcing ribs are made of alloy metal. The protective shell protects the servo motor from the outside, and the reinforcing ribs increase the strength of the protective shell, thereby improving the protection strength of the servo motor and improving the performance.

[0011] Preferably, the cross-sectional shape of the connecting strip is set to "L" shape, and the inner cavity cross-sectional shape of the first sliding strip and the second sliding strip is set to "T" shape. The shape formed by the two connecting strips is adapted to the first sliding strip and the second sliding strip. By locking the first sliding strip and the second sliding strip in the middle of the connecting strip, the engagement of the two protective shells can be fixed, thereby improving the strength of the protective shells.

[0012] Preferably, the fan has air inlets on both sides, a dustproof net on its surface, a heat dissipation plate in the middle, and heat dissipation fins between the heat dissipation plate and the fan. The fan dissipates heat from the surfaces of the heat dissipation plate and the heat dissipation fins, thereby improving the performance.

[0013] Preferably, one end of the heat-conducting strip penetrates the wall of the protective shell and is fixedly connected to the wall of the heat sink plate. One end of the spring is in contact with the inner wall of the protective shell. The heat-conducting plate is in contact with the wall of the servo motor. The heat-conducting strip enables the heat sink plate to conduct heat out, facilitating heat dissipation. The spring pushes the heat-conducting plate, increasing the bonding strength between the heat-conducting plate and the servo motor, thus improving the performance.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model firstly enhances the strength of the protective shell by setting reinforcing ribs, thereby improving the protective strength. Secondly, the heat-conducting plate can absorb the heat generated by the servo motor by being attached to the wall of the servo motor, and conduct the heat to the heat sink and heat sink fins through the heat-conducting strips. Then, the heat on the surface of the heat sink and heat sink fins is discharged by the fan, thus achieving the heat dissipation function without affecting the normal heat dissipation and use of the servo motor.

[0016] 2. This utility model also facilitates installation on one end of the drive shaft by setting a sealing plate and a sealing ring. The sealing ring and the annular groove at one end of the drive shaft can seal the gap between the drive shaft and the servo motor, improving the dustproof and waterproof effect. The spring pushes the heat-conducting plate, ensuring that the heat-conducting plate is always in contact with the servo motor after the protective shell is installed. The cooperation of the first sliding clip and the second sliding clip with the connecting clip facilitates installation and fixation.

[0017] In summary, through the interaction of the above-mentioned multiple functions, the protection strength can be improved without affecting the heat dissipation effect of the servo motor. It can also seal the gap between the drive shaft and the servo motor, improve the dustproof, waterproof and airproof strength, and facilitate installation and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2This is a schematic diagram of the structure of this utility model.

[0020] Figure 3 This is a schematic diagram showing the disassembled structure of the servo motor and sealing plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the connection structure between the heat sink and the heat conduction plate of this utility model.

[0022] The attached diagram is labeled as follows: 1. Servo motor; 2. Wire box; 3. Drive shaft; 4. Sealing plate; 5. Sealing ring; 6. Protective shell; 7. Reinforcing rib; 8. Connecting clip; 9. First sliding clip; 10. Second sliding clip; 11. Push block; 12. Mounting plate; 13. Fan; 14. Dustproof net; 15. Heat-conducting plate; 16. Heat-conducting strip; 17. Spring; 18. Heat sink; 19. Heat sink fins. Detailed Implementation

[0023] 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.

[0024] As attached Figure 1-4 The high-protection-level servo motor shown includes a servo motor 1, an electrical box 2 fixed to the top of the servo motor 1, and a drive shaft 3 located at the output end of the servo motor 1. A sealing plate 4 is bolted to one end of the servo motor 1 near the drive shaft 3. A sealing ring 5 is embedded in the middle of the sealing plate 4. The sealing plate 4 and the sealing ring 5 seal the gap between the servo motor 1 and the drive shaft 3, improve the sealing strength, and prevent dust or moisture from entering the interior of the servo motor 1 and affecting its performance. Protective shells 6 are symmetrically arranged on both sides of the servo motor 1. Reinforcing ribs 7 are fixedly connected to the surface of the protective shells 6. The protective shells 6 and the reinforcing ribs 7 protect the exterior of the servo motor 1 and improve the protection strength level by increasing the reinforcing ribs 7, so as to prevent the servo motor 1 from being damaged by collision.

[0025] Connecting strips 8 are fixedly connected to the opposite side walls of the two protective shells 6. A first sliding strip 9 and a second sliding strip 10 are slidably disposed in the middle of the connecting strip 8. Pushing blocks 11 are fixedly connected to the surfaces of both the first and second sliding strips 9 and 10. The cooperation between the connecting strips 8, the second sliding strip 10, and the first sliding strip 9 facilitates the locking and fixing of the two protective shells 6. Mounting plates 12 are symmetrically fixedly connected to both sides of the bottom of the protective shells 6, facilitating installation and fixing in the designated position. Wind turbines are symmetrically fixedly connected to the opposite sides of the two protective shells 6. The machine 13 is used for heat dissipation through the fan 13. A heat-conducting plate 15 is provided on one side of the inner cavity of the protective shell 6. Multiple springs 17 and heat-conducting strips 16 are fixedly connected to one side of the heat-conducting plate 15. A heat dissipation plate 18 is fixedly connected to the outside of the protective shell 6. A heat dissipation fin 19 is fixedly connected to one side of the heat dissipation plate 18. The heat-conducting plate 15 is attached to the wall of the servo motor 1, which can absorb the heat generated inside the servo motor 1. The heat is introduced into the interior of the heat dissipation fin 19 through the heat-conducting strip 16. The heat is blown away from the surface of the heat dissipation fin 19 by the dustproof net 14 to achieve the heat dissipation function.

[0026] As attached Figure 1-4As shown, the sealing plate 4 is fitted around the middle of the drive shaft 3, the wall of the sealing ring 5 fits against the wall of the drive shaft 3, and an annular groove is formed on the surface of the drive shaft 3 at a position corresponding to the sealing ring 5. The sealing ring 5 is placed inside the annular groove. The protective shell 6 is adapted to the servo motor 1. The reinforcing rib 7 is set as a "well" shaped structure and is made of alloy metal. The cross-sectional shape of the connecting strip 8 is set as an "L" shape. The inner cavity cross-sectional shape of the first sliding strip 9 and the second sliding strip 10 is set as a "T" shape. The shape formed by the two connecting strips 8 is adapted to the first sliding strip 9 and the second sliding strip 10. Air inlets are set on both sides of the fan 13. A dustproof net 14 is set on the surface of the fan 13. The heat dissipation plate 18 is set in the middle of the fan 13. The heat dissipation fins 19 are set between the heat dissipation plate 18 and the fan 13. One end of the heat conduction strip 16 penetrates the wall of the protective shell 6 and is fixedly connected to the wall of the heat dissipation plate 18. One end of the spring 17... The end of the heat-conducting plate 15 is attached to the inner wall of the protective shell 6, and the heat-conducting plate 15 is attached to the wall of the servo motor 1. The sealing plate 4 limits and supports the sealing ring 5, and the sealing ring 5 seals the gap between the drive shaft 3 and the servo motor 1, improving the performance. The protective shell 6 protects the outside of the servo motor 1, and the reinforcing ribs 7 increase the strength of the protective shell 6, thereby improving the protection strength of the servo motor 1 and improving the performance. The first sliding clip 9 and the second sliding clip 10 are locked in the middle of the connecting clip 8, which can fix the two protective shells 6 and improve the strength of the protective shell 6. The fan 13 dissipates heat from the surface of the heat sink 18 and the heat sink fins 19, improving the performance. The heat-conducting strip 16 allows the heat sink 18 to conduct heat away from the heat-conducting plate 15, facilitating heat dissipation. The spring 17 pushes the heat-conducting plate 15, increasing the adhesion strength between the heat-conducting plate 15 and the servo motor 1, improving the performance.

[0027] It is worth noting that the wires of the fan 13 are connected to the wires inside the junction box 2, so that the servo motor 1 supplies power to the fan 13 at the same time it starts.

[0028] The working principle of this utility model is as follows: When in use, two protective shells 6 are clamped on both sides of the servo motor 1, and the two connecting strips 8 are attached. Then, the first sliding strip 9 and the second sliding strip 10 are slidably engaged in the middle of the connecting strips 8 to fix both sides of the protective shell 6. The first sliding strip 9 and the second sliding strip 10 can be easily pushed by the pushing block 11. The protective shell 6 provides high-strength protection for the outside of the servo motor 1.

[0029] At this time, the heat conduction plate 15 presses against the spring 17, so that the heat conduction plate 15 is tightly attached to the two side walls of the servo motor 1. The heat generated by the servo motor 1 is absorbed by the heat conduction plate 15. Then the wire of the fan 13 is connected to the wire inside the wire box 2. When the servo motor 1 starts, it will provide power to the fan 13. The fan 13 will blow away the heat on the surface of the corresponding heat sink 18 and heat sink fins 19 to achieve the function of heat dissipation.

[0030] When the sealing plate 4 and the sealing ring 5 are put on the end of the drive shaft 3 near the servo motor 1, the sealing ring 5 corresponds to the annular groove at one end of the drive shaft 3. Then the sealing plate 4 is fixed with bolts. The sealing ring 5 can seal the gap between the drive shaft 3 and the servo motor 1, improving the dustproof and waterproof function.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-protection-level servo motor, comprising a servo motor (1), an electrical box (2) fixed to the top of the servo motor (1), and a drive shaft (3) disposed at the output end of the servo motor (1), characterized in that: The servo motor (1) is connected to a sealing plate (4) by bolts at one end near the drive shaft (3). A sealing ring (5) is embedded in the middle of the sealing plate (4). Protective shells (6) are symmetrically arranged on both sides of the servo motor (1). Reinforcing ribs (7) are fixedly connected to the surface of the protective shells (6). Connecting strips (8) are fixedly connected to the opposite side walls of the two protective shells (6). A first sliding strip (9) and a second sliding strip (10) are slidably arranged in the middle of the connecting strips (8). Pushing blocks (11) are fixedly connected to the surfaces of the first sliding strip (9) and the second sliding strip (10). Mounting plates (12) are symmetrically fixedly connected to the bottom sides of the protective shells (6). Fans (13) are symmetrically fixedly connected to the opposite sides of the two protective shells (6). A heat-conducting plate (15) is provided on one side of the inner cavity of the protective shell (6). A plurality of springs (17) and heat-conducting strips (16) are fixedly connected to one side of the heat-conducting plate (15). A heat dissipation plate (18) is fixedly connected to the outside of the protective shell (6). A heat dissipation fin (19) is fixedly connected to one side of the heat dissipation plate (18).

2. The high-protection-level servo motor according to claim 1, characterized in that: The sealing plate (4) is fitted around the middle of the drive shaft (3), the wall of the sealing ring (5) is in contact with the wall of the drive shaft (3), and an annular groove is provided on the surface of the drive shaft (3) at a position corresponding to the sealing ring (5), and the sealing ring (5) is located inside the annular groove.

3. A high-protection-level servo motor according to claim 1, characterized in that: The protective shell (6) is adapted to the servo motor (1), the reinforcing rib (7) is set as a "well" shaped structure, and the reinforcing rib (7) is made of alloy metal material.

4. A high-protection-level servo motor according to claim 1, characterized in that: The cross-sectional shape of the connecting strip (8) is set to "L" shape, and the inner cavity cross-sectional shape of the first sliding strip (9) and the second sliding strip (10) is set to "T" shape. The shape formed by the two connecting strips (8) is adapted to the first sliding strip (9) and the second sliding strip (10).

5. A high-protection-level servo motor according to claim 1, characterized in that: The fan (13) has air inlets on both sides, a dustproof net (14) on the surface of the fan (13), a heat sink (18) in the middle of the fan (13), and heat sink fins (19) between the heat sink (18) and the fan (13).

6. A high-protection-level servo motor according to claim 1, characterized in that: One end of the heat-conducting strip (16) passes through the wall of the protective shell (6) and is fixedly connected to the wall of the heat sink (18). One end of the spring (17) is in contact with the inner wall of the protective shell (6). The heat-conducting plate (15) is in contact with the wall of the servo motor (1).

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