Oil seal pressing device of motor

Abstract

The utility model discloses an oil seal pressing device of a motor in the technical field of motor processing. The oil seal pressing device comprises a workbench and a mounting mechanism, the mounting mechanism is arranged on the surface of the workbench, the mounting mechanism comprises a positioning tool and an air cylinder, the positioning tool comprises an abutting plate and two guide rails, the two guide rails are fixedly connected to the workbench in parallel, the same movable plate is slidably mounted on the two guide rails, and the movable plate is fixedly connected with a containing frame used for containing a motor; the workbench is fixedly connected with a vertical abutting plate, and the abutting plate is close to the end of the guide rail. The workbench is fixedly connected with an air cylinder, the air cylinder is located at the ends, away from the abutting plate, of the two guide rails, an output shaft of the air cylinder horizontally faces the containing frame and is fixedly connected with a mounting sleeve, and the mounting sleeve is used for pressing the oil seal into the mounting position when the air cylinder operates. According to the scheme, the problems that an existing oil seal is high in operation intensity and low in installation efficiency during installation are solved.

Description

Technical Field

[0001] This utility model relates to the field of motor processing technology, specifically to a pressure oil seal device for an electric motor. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy, widely used in various industries, household appliances, and transportation vehicles. It operates on the principle of electromagnetic induction and mainly consists of a stator and a rotor. The stator contains coils that generate a magnetic field when energized; the rotor contains conductors that rotate under the influence of the magnetic field, thus driving the mechanical equipment. There are various types of electric motors, including DC motors, AC motors, synchronous motors, and asynchronous motors, each suitable for different applications.

[0003] An oil seal (also known as a sealing ring or rotary shaft seal) is a critical component installed between the motor shaft and the housing to prevent lubricating grease leakage and the entry of external contaminants into the motor. Oil seals are essential for ensuring proper motor operation and extending its service life. Oil seals typically employ a lip design, with one or more elastic rubber lips pressed tightly against the rotating shaft. As the shaft rotates, the sealing lips create a small but continuous contact pressure with the shaft surface, achieving a sealing effect.

[0004] Currently, when installing oil seals, after placing the oil seal into the mounting hole, installation tools such as installation sleeves or pressure plates are used to ensure even pressure during installation. Then, a hammer is used to tap the installation tool to press the oil seal into the designated position, ensuring that the oil seal is completely embedded in the installation position. At the same time, it is also necessary to avoid excessive force, which may cause the oil seal to deform or be damaged. Therefore, this installation method requires high operational strength, poor product consistency after installation, low installation efficiency, and a certain level of skill and proficiency. Utility Model Content

[0005] The present invention aims to provide a pressure oil seal device for motors to solve the problems of high operational intensity and low installation efficiency during the current oil seal installation.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pressure oil sealing device for an electric motor, including a worktable and an installation mechanism;

[0007] The installation mechanism is set on the surface of the workbench. The installation mechanism includes a positioning fixture and a cylinder. The positioning fixture includes a support plate and two guide rails. The two guide rails are fixedly connected in parallel to the workbench. The same movable plate is slidably installed on the two guide rails. A placement frame for placing the motor is fixedly connected to the movable plate. A vertical support plate is fixedly connected to the workbench, with the support plate near the end of the guide rail. A cylinder is fixedly connected to the workbench, located at the end of the two guide rails away from the support plate. An installation sleeve is fixedly connected to the output shaft of the cylinder, which is horizontally oriented towards the placement frame. The installation sleeve is used to press the oil seal into the installation position when the cylinder is running.

[0008] The working principle of this invention is as follows: In use, the motor requiring oil sealing is lifted by a crane and moved to the top of the placement rack. Workers assist in accurately placing the motor on the rack, then placing the oil seal on the motor's shaft. A moving plate is then pushed, sliding on a rail and moving the motor towards the supporting plate until it contacts it. At this point, the worker activates the cylinder. As the cylinder operates, its output shaft extends, moving the mounting sleeve towards the motor's shaft and into contact with the oil seal. With continued extension of the cylinder's output shaft, the mounting sleeve presses the oil seal into the designated position. The cylinder is then reversed, moving the mounting sleeve back to its initial position via its output shaft. Finally, the crane lifts the motor with the oil seal installed off the placement rack, completing the oil sealing process. This process can be repeated continuously to seal the motor with oil seals.

[0009] The beneficial effects of this utility model are:

[0010] 1. Using this solution, only manual assistance is needed to place the motor, which is lifted by the crane, onto the mounting frame. Then, the oil seal is fitted onto the motor shaft. The oil seal is installed by the cooperation of the cylinder and the support plate. When the cylinder pushes the oil seal through the installation sleeve, the oil seal is evenly stressed and will not be tilted during the installation process. Therefore, the installation accuracy is high and the product consistency is strong. Moreover, there is no need for manual hammering, which avoids deformation or damage to the oil seal due to excessive local stress and also reduces the labor intensity of workers.

[0011] 2. When pressing the oil seal on the motor, the rapid extension and retraction of the cylinder can quickly press the oil seal into the designated position. Compared with the traditional manual knocking method, the cylinder can push and press once to install it in place, which greatly improves the installation efficiency. Moreover, the oil seal pressing operation can be performed on the motor continuously, which improves the overall installation efficiency and helps to improve the production progress on the production line.

[0012] Furthermore, multiple abutment posts are fixedly connected to the side wall of the abutment plate on the side that contacts the motor, and these posts are arranged in a circular array. The purpose of this is that the side of the motor that contacts the abutment plate is not a flat plane. Therefore, to avoid excessive localized force on the motor and potential damage, multiple abutment posts are installed, with their lengths matching the shape of the motor. This ensures that the force is evenly distributed when the motor contacts the abutment plate during oil sealing, thus preventing potential damage to the motor.

[0013] Furthermore, two trapezoidal support plates are fixedly connected to the side of the abutment plate opposite to the abutment post. The bottom of the support plates is fixedly connected to the worktable, and the support plates are perpendicular to the abutment plate. The purpose is to provide support for the abutment plate through the trapezoidal support plates, so as to prevent it from tilting during the oil sealing process and thus affecting the oil sealing operation.

[0014] Furthermore, two horizontal tubes are fixedly connected to the bottom of the side wall of the supporting plate, and springs are fixedly connected in the two horizontal tubes. The end of the spring away from the horizontal tube contacts the side wall of the moving plate. When the cylinder is started to press the oil seal, the cylinder pushes the oil seal through the mounting sleeve. As the moving plate moves towards the supporting plate under the thrust, the spring gradually decompresses. When the oil seal is pressed and the cylinder reverses its direction, the moving plate slides away from the supporting plate along the guide rail under the push of the spring force, which helps to maintain a certain distance between the motor and the supporting plate, facilitating crane lifting.

[0015] Furthermore, it also includes a conveyor belt, which is located next to the workbench and its conveying direction is perpendicular to the drive direction of the workbench. The purpose is to use the conveyor belt to transport the motors that need to be oil-sealed in an assembly line manner, and then use an overhead crane to hoist the motors from the conveyor belt onto the placement rack.

[0016] Furthermore, the placement rack includes two placement plates vertically fixed to the movable plate. The two placement plates are parallel to each other, and the top of each placement plate has an arc-shaped groove with the same curvature as the motor housing. The purpose of this arrangement is to facilitate stable placement of the motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a pressure oil seal device for an electric motor according to the present invention;

[0018] Figure 2 This is a schematic diagram of the installation mechanism in the embodiment;

[0019] Figure 3 for Figure 2 A magnified view of A in the middle. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: motor 1, conveyor belt 2, support plate 3, mounting sleeve 4, cylinder 5, worktable 6, moving plate 7, placement plate 8, horizontal tube 9, support plate 10, support column 11, spring 12, guide rail 13.

[0022] The basic implementation examples are as follows: Figure 1 Appendix Figure 2 and attached Figure 3 As shown:

[0023] An oil sealing device for an electric motor includes a worktable 6 and a mounting mechanism.

[0024] The mounting mechanism is located on the surface of the workbench 6. The mounting mechanism includes a positioning fixture, a cylinder 5, and a conveyor belt 2. The positioning fixture includes a support plate 3 and two guide rails 13. Multiple support columns 11 are fixedly connected to the side wall of the support plate 3 on the side that contacts the motor 1. These support columns 11 are arranged in a circular array. Two trapezoidal support plates 10 are fixedly connected to the side of the support plate 3 opposite to the support columns 11. The bottom of the support plates 10 is fixedly connected to the workbench 6, and the support plates 10 are perpendicular to the support plate 3. Two horizontal tubes 9 are fixedly connected to the bottom of the side wall of the support plate 3. Springs 12 are fixedly connected to the two horizontal tubes 9, and the end of the spring 12 away from the horizontal tube 9 contacts the side wall of the moving plate 7. Two guide rails 13 are fixedly connected in parallel to the worktable 6. A movable plate 7 is slidably mounted on the two guide rails 13. A placement frame for placing the motor 1 is fixedly connected to the movable plate 7. The placement frame includes two placement plates 8 that are vertically fixed on the movable plate 7. The two placement plates 8 are parallel to each other, and the top of the placement plates 8 is provided with an arc-shaped groove with the same curvature as the motor 1 housing. A vertical abutment plate 3 is fixedly connected to the worktable 6. The abutment plate 3 is close to the end of the guide rail 13. A cylinder 5 is fixedly connected to the worktable 6. The cylinder 5 is located at the end of the two guide rails 13 away from the abutment plate 3. The output shaft of the cylinder 5 is horizontally oriented towards the placement frame and fixedly connected to a mounting sleeve 4. The mounting sleeve 4 is used to press the oil seal into the installation position when the cylinder 5 is running.

[0025] The conveyor belt 2 is located next to the workbench 6, and the conveying direction of the conveyor belt 2 is perpendicular to the transmission direction of the workbench 6.

[0026] The specific implementation process is as follows:

[0027] In use, conveyor belt 2 transports the motor 1 that needs to be oil-sealed, and a crane lifts it to the top of the placement frame. Workers assist by accurately placing the motor 1 into the arc-shaped grooves of the two placement plates 8. Then, the oil seal is placed on the motor 1's shaft. Next, the moving plate 7 is pushed, sliding on the slide rail and moving the motor 1 towards the supporting plate 3 until it contacts the supporting post 11 on the supporting plate 3. At this point, the worker activates cylinder 5. As cylinder 5 operates, its output shaft extends, causing the mounting sleeve 4 to move towards the motor 1's shaft and contact the oil seal. As the output shaft of cylinder 5 continues to extend, the mounting sleeve 4 presses the oil seal into the designated position. Then, cylinder 5 is reversed, moving the mounting sleeve 4 back to its initial position via its output shaft. Finally, the crane lifts the motor 1 with the oil seal installed off the placement frame, completing the oil-sealing process for motor 1. This process can be repeated continuously to oil-seal motor 1. When cylinder 5 starts to press the oil seal, as cylinder 5 pushes the oil seal through the mounting sleeve 4, the moving plate 7 moves toward the supporting plate 3 under the thrust, and the spring 12 gradually stops compressing. When the oil seal is completed and cylinder 5 runs in the reverse direction, the moving plate 7 slides away from the supporting plate 3 along the guide rail 13 under the push of the spring force of spring 12, so that the motor 1 and the supporting plate 3 can maintain a certain distance, which is convenient for the crane to lift.

Claims

1. A pressure oil sealing device for an electric motor, characterized in that: Includes the workbench and installation mechanism; The installation mechanism is set on the surface of the workbench. The installation mechanism includes a positioning fixture and a cylinder. The positioning fixture includes a support plate and two guide rails. The two guide rails are fixedly connected in parallel to the workbench. The same movable plate is slidably installed on the two guide rails. A placement frame for placing the motor is fixedly connected to the movable plate. A vertical support plate is fixedly connected to the workbench, with the support plate near the end of the guide rail. A cylinder is fixedly connected to the workbench, located at the end of the two guide rails away from the support plate. An installation sleeve is fixedly connected to the output shaft of the cylinder, which is horizontally oriented towards the placement frame. The installation sleeve is used to press the oil seal into the installation position when the cylinder is running.

2. The oil sealing device for an electric motor according to claim 1, characterized in that: Multiple abutment columns are fixedly connected to the side wall of the abutment plate on the side that contacts the motor, and the multiple abutment columns are arranged in a ring array.

3. The oil sealing device for an electric motor according to claim 2, characterized in that: Two trapezoidal support plates are fixedly connected to the side of the abutment plate opposite to the abutment column. The bottom of the support plates is fixedly connected to the workbench, and the support plates are perpendicular to the abutment plate.

4. The oil sealing device for an electric motor according to claim 3, characterized in that: Two horizontal tubes are fixedly connected to the bottom of the side wall of the supporting plate, and springs are fixedly connected in the two horizontal tubes. The end of the spring away from the horizontal tube contacts the side wall of the moving plate.

5. The oil sealing device for an electric motor according to claim 4, characterized in that: It also includes a conveyor belt, which is located next to the workbench and the conveying direction of the conveyor belt is perpendicular to the transmission direction of the workbench.

6. The oil sealing device for an electric motor according to claim 5, characterized in that: The placement rack includes two placement plates that are vertically fixed on the movable plate. The two placement plates are parallel to each other, and the top of the placement plates is provided with an arc-shaped groove with the same curvature as the motor housing.

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