High-strength gear reducer motor assembly for walking of electric hoist

Abstract

The utility model discloses a high-strength gear reducer motor assembly for walking of an electric hoist, and relates to the technical field of hoisting equipment. The motor comprises a motor shell and further comprises a motor rotor arranged in the motor shell, a motor end cover is arranged on one side of the motor shell, and a gear box body is arranged on one side of the motor end cover. The motor module, the gear reducer module and the electromagnetic brake module are integrally arranged, a gear is subjected to quenching and tempering heat treatment during use so as to improve the wear resistance and the bearing capacity of the gear, and a three-stage output gear shaft and a three-stage gear are subjected to gear grinding after gear manufacturing, so that the high precision of a gear meshing surface is ensured, the noise of gear operation is reduced, and the service life of the gear is prolonged. Therefore, the torque output and noise control level of the product under high-strength operation is improved, and the installation and maintenance process is simplified and the integrity is enhanced by realizing the integrated assembly of the gear reducer, the motor and the electromagnetic brake.

Description

Technical Field

[0001] This utility model belongs to the field of lifting equipment technology, and in particular relates to a high-strength electric hoist traveling gear reduction motor assembly. Background Technology

[0002] Electric hoists are a type of lightweight lifting equipment. They are widely used in industrial and mining enterprises, warehouses, docks and other places due to their compact structure, light weight and simple operation. The gear reducer motor is the electrical equipment that drives the electric hoist to move. When the motor is running, the gear reducer is used to reduce the motor speed, increase the output torque and ensure the smooth operation of the walking mechanism.

[0003] However, existing electric hoist traveling gear reduction motors often suffer from insufficient torque, high noise, and poor durability when facing high-intensity operations. These problems not only affect work efficiency but also increase maintenance costs and safety hazards. Therefore, it is particularly important to develop an electric hoist traveling drive device that can adapt to high-intensity working environments and has the characteristics of high torque, low noise, and long life. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a high-strength electric hoist traveling gear reduction motor assembly, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a high-strength electric hoist traveling gear reduction motor assembly, including a motor housing, and further comprising: a motor rotor disposed inside the motor housing; a motor end cover disposed on one side of the motor housing; a gearbox disposed on one side of the motor end cover; a protective cover disposed on the other side of the motor housing; a three-stage output gear shaft inserted into both ends of one side of the gearbox; a two-stage gear shaft movably connected between the bottom of one side of the gearbox and the bottom of one side of the motor end cover; a first-stage gear disposed on one side of the second-stage gear shaft; a third-stage gear disposed on one side of the third-stage output gear shaft; a thrust bearing disposed on one side of the third-stage gear shaft; and a heat dissipation and dustproof component disposed at the rear end of the inner side of the protective cover.

[0007] Furthermore, a retaining ring is provided on the outside of the third-stage output gear shaft on the outside of the gearbox body. The third-stage output gear shaft is movably connected to the top of the inside side of the gearbox body and the top of the inside side of the motor end cover through bearings. A motor shaft passes through the top of the inside side of the motor end cover. A sealing gasket is provided between the motor end cover and the gearbox body.

[0008] Furthermore, the third-stage output gear shaft meshes with the first-stage gear, and the second-stage gear shaft meshes with the third-stage gear.

[0009] Furthermore, a junction box is provided at the front end of the motor housing, a stabilizing bearing is provided on the top of the other side inside the motor end cover, one side of the motor rotor passes through the interior of the stabilizing bearing, and a wave washer is provided on the stabilizing bearing side outside the motor rotor.

[0010] Furthermore, an electromagnetic brake seat is provided inside a protective cover on one side of the motor housing. A movable brake disc is provided on one side of the electromagnetic brake seat. A spring is provided at the middle position on one side of the electromagnetic brake seat. A brake pad is provided on one side of the movable brake disc. A brake wheel is provided on one side of the brake pad. A connecting flange is provided on one side of the brake wheel. One side of the motor rotor is fixedly connected through the middle position of the movable brake disc, brake pad, and brake wheel.

[0011] Furthermore, the heat dissipation and dustproof component includes a heat dissipation groove, which is disposed at the rear end inside the protective cover, and a dustproof mesh is embedded inside the heat dissipation groove.

[0012] This utility model has the following beneficial effects:

[0013] This utility model integrates a motor module, a gear reducer module, and an electromagnetic brake module. During use, the gears undergo heat treatment to improve their wear resistance and load-bearing capacity. Furthermore, the third-stage output gear shaft and the third-stage gear are ground after gear manufacturing to ensure high precision of the gear meshing surface, reducing gear noise. This improves the torque output and noise control level of the product under high-intensity operation. In addition, the use of high-strength materials and precision manufacturing processes significantly enhances the product's durability and service life. Moreover, by integrating the gear reducer, motor, and electromagnetic brake into a single unit, the installation and maintenance process is simplified, further enhancing the overall performance and reliability of the product.

[0014] This invention features a heat dissipation and dustproof component installed at the rear end inside the protective cover. When the electromagnetic brake module is working, the heat generated by it is dissipated through the heat dissipation groove, which prevents the electromagnetic brake module from overheating, degrading its performance, or even being damaged due to untimely heat dissipation. In addition, the dustproof net ensures heat dissipation while preventing external dust from entering the protective cover and causing dust accumulation on the electromagnetic brake module, which would affect its braking performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is an exploded view of the gear reducer module of this utility model;

[0018] Figure 3 This is an exploded view of the motor module of this utility model;

[0019] Figure 4 This is an exploded view of the electromagnetic brake module of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Motor housing; 2. Protective cover; 3. Junction box; 4. Motor end cover; 5. Three-stage output gear shaft; 6. Gearbox body; 7. Snap ring; 8. Three-stage gear; 9. Thrust bearing; 10. Sealing gasket; 11. Motor shaft; 12. First-stage gear; 13. Second-stage gear shaft; 14. Stabilizing bearing; 15. Wave washer; 16. Motor rotor; 17. Electromagnetic brake seat; 18. Spring; 19. Moving brake disc; 20. Brake pad; 21. Brake wheel; 22. Heat dissipation groove; 23. Dustproof net; 24. Connecting flange. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4As shown, this utility model is a high-strength electric hoist traveling gear reduction motor assembly, including a motor housing 1, and further including: a motor rotor 16 disposed inside the motor housing 1, a junction box 3 disposed at the front end of the motor housing 1, through which a power supply is connected, the gear reduction motor rotates through the motor drive output end when working, the motor housing 1 is made of cast iron 250 material, the stator is wound with high-purity enameled wire to improve motor efficiency and stability, the motor rotor 16 is made of high-purity silicon steel sheets to reduce energy consumption and heat generation, a stabilizing bearing 14 is disposed on the top of the other side inside the motor end cover 4, and the motor rotor... One side of the rotor 16 extends through the interior of the stabilizing bearing 14. A wave-shaped washer 15 is provided on one side of the stabilizing bearing 14 outside the rotor 16. A motor end cover 4 is provided on one side of the motor housing 1. A gearbox 6 is provided on one side of the motor end cover 4. A sealing gasket 10 is provided between the motor end cover 4 and the gearbox 6 to ensure the sealing of the connection between the gearbox 6 and the motor end cover 4. A protective cover 2 is provided on the other side of the motor housing 1. A motor shaft 11 passes through the top of one side of the motor end cover 4. Three-stage output gear shafts 5 are inserted into both ends of one side of the gearbox 6. 5 is movably connected to the top of one side of the gearbox 6 and the top of one side of the motor end cover 4 via bearings. A retaining ring 7 is provided on the outside of the third-stage output gear shaft 5 on the outside of the gearbox 6. A second-stage gear shaft 13 is movably connected between the bottom of one side of the gearbox 6 and the bottom of one side of the motor end cover 4. A first-stage gear 12 is provided on one side of the outside of the second-stage gear shaft 13. The third-stage output gear shaft 5 meshes with the first-stage gear 12. A third-stage gear 8 is provided on one side of the outside of the third-stage output gear shaft 5. The second-stage gear shaft 13 meshes with the third-stage gear 8. The third-stage gear 8 is located on the outside of the third-stage output gear shaft 5. A thrust bearing 9 is installed on one side. The high-speed rotation of the motor is reduced by a gear reducer module. The gears inside the gear reducer mesh with each other, reducing the high-speed rotation of the motor through a series of gear transmissions. By adjusting the gear ratio, the output speed can be precisely controlled. The gearbox 6 is made of cast iron 250, and the gears are all made of high-strength alloy steel 42CrMo, and have undergone tempering heat treatment to improve wear resistance and load-bearing capacity. As the speed decreases, the low torque of the motor is amplified during the gear transmission process, resulting in high torque output to meet the application requirements of high load.

[0024] As a further implementation of this embodiment, such as Figure 1-4An electromagnetic brake seat 17 is installed inside the protective cover 2 on one side of the motor housing 1. A movable brake disc 19 is installed on one side of the electromagnetic brake seat 17. The magnetic coil in the electromagnetic brake module is made of high-purity copper wire and is insulated and potted to meet high-level insulation requirements. A brake pad 20 is installed on one side of the movable brake disc 19. The movable brake disc 19 is made of 45# steel and is fixed to the brake pad 20 with copper rivets. A brake wheel 21 is installed on one side of the brake pad 20. The brake wheel 21 is made of ductile iron 550 to improve wear resistance. A connecting flange 24 is installed on one side of the brake wheel 21. One side of the motor rotor 16 passes through the interior of the movable brake disc 19 and the brake pad 20 and is fixedly connected to the middle position inside the brake wheel 21. When the electromagnetic brake is energized, the magnetic coil generates a magnetic field, which attracts the brake wheel 21 to contact the brake pad 20 and generates braking force through friction. A spring 18 is installed at the middle position on one side of the electromagnetic brake seat 17 and the spring 18 keeps the contact between the brake wheel 21 and the brake pad 20 to ensure that the braking force is continuously effective.

[0025] During use, the motor is connected to the power supply through the junction box 3 located at the front end of the motor housing 1. After the motor starts, its high-speed rotating output end is decelerated by the gear reducer module. The high-speed rotation of the motor is decelerated by a series of meshing transmissions between the three-stage output gear shaft 5, the first-stage gear 12, the second-stage gear shaft 13 and the third-stage gear 8 set between the gearbox 6 and the motor end cover 4. By adjusting the gear ratio, the output speed of the gear reducer module can be precisely controlled. At the same time, the low torque of the motor can be amplified to output high torque to meet the application requirements of high load, thereby driving the electric hoist to move stably. When the electric hoist needs to stop, the electromagnetic brake is energized. The magnetic coil generates a magnetic field, which attracts the brake wheel 21, which is fixedly connected to the connecting flange 24, to contact the brake pad 20. The braking force is generated by friction, and the contact between the brake wheel 21 and the brake pad 20 is maintained by the spring 18 to ensure that the braking force is effective and thus stabilizes the electric hoist.

[0026] As a further implementation of this embodiment, such as Figure 1 and Figure 4 As shown, a heat dissipation and dustproof component is provided at the rear end of the inner side of the protective cover 2. The heat dissipation and dustproof component includes a heat dissipation groove 22. The heat dissipation groove 22 is located at the rear end inside the protective cover 2. The heat dissipation groove 22 dissipates the heat generated during the operation of the electromagnetic brake module. A dustproof mesh 23 is embedded inside the heat dissipation groove 22. The dustproof mesh 23 ensures the heat dissipation effect while preventing external dust from entering the protective cover 2.

[0027] When the electromagnetic brake module generates heat during operation, it dissipates heat through the heat dissipation slot 22 located at the rear end of the inner side of the shield 2. This prevents heat from accumulating inside the shield 2, which could lead to overheating, performance degradation, or even damage due to untimely heat dissipation of the electromagnetic brake module. Furthermore, the dustproof net 23 installed inside the heat dissipation slot 22, which separates the inside and outside of the shield 2, ensures the normal heat dissipation function of the heat dissipation slot 22 while preventing external dust from entering the shield 2.

[0028] Working Principle: When using the gear reduction motor for the electric hoist's travel, the high-speed output speed of the motor is reduced through a series of meshing transmissions between the three-stage output gear shaft 5, the first-stage gear 12, the second-stage gear shaft 13, and the third-stage gear 8, which are located inside the gearbox 6 and the motor end cover 4. By adjusting the gear ratio, the output speed of the gear reduction module can be precisely controlled, thereby accurately controlling the travel distance of the electric hoist. Furthermore, while reducing the motor speed, the low torque output of the motor is amplified to produce high torque, ensuring stable travel of the electric hoist under high load conditions. Once the electromagnetic brake reaches the designated position, the magnetic coil inside the energized module generates a magnetic field, attracting the brake wheel 21 to contact the brake pad 20. This friction generates braking force, and the spring 18 maintains the contact between the brake wheel 21 and the brake pad 20, ensuring the braking force remains effective and thus stabilizing the electric hoist. At the same time, the heat dissipation groove 22 is used for heat dissipation, preventing heat from accumulating inside the protective cover 2, which could lead to overheating, performance degradation, or even damage to the electromagnetic brake module. Furthermore, the dustproof net 23 isolates the inside and outside of the protective cover 2, preventing external dust from entering the protective cover 2 and affecting the working state of the electromagnetic brake module.

[0029] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A high-strength geared motor assembly for a travelling hoist, comprising a motor housing (1), characterized in that, Also include: The inside of the motor shell (1) is provided with a motor rotor (16), one side of the motor shell (1) is provided with a motor end cover (4), one side of the motor end cover (4) is provided with a gear box (6), the other side of the motor shell (1) is provided with a shield (2), both ends of the inside of the gear box (6) are inserted with a three-stage output gear shaft (5), the bottom of the inside of the gear box (6) and the bottom of the inside of the motor end cover (4) are movably connected by a two-stage gear shaft (13), one side of the outside of the two-stage gear shaft (13) is provided with a first gear (12), one side of the outside of the three-stage output gear shaft (5) is provided with a three-stage gear (8), one side of the three-stage gear (8) of the outside of the three-stage output gear shaft (5) is provided with a thrust bearing (9), the rear end of the inside of the shield (2) is provided with a heat dissipation dustproof assembly.

2. The high strength electric rope hoist travel gear reduction motor assembly of claim 1, wherein, The outside of the three-stage output gear shaft (5) of the gear box (6) is provided with a circlip (7), the three-stage output gear shaft (5) is movably connected with the top of the inside of the gear box (6) and the top of the inside of the motor end cover (4) through a bearing, the motor shaft (11) is provided through the top of the inside of the motor end cover (4), and the motor end cover (4) and the gear box (6) are provided with a sealing gasket (10).

3. The high strength electric rope hoist travel gear reduction motor assembly of claim 1, wherein, The three-stage output gear shaft (5) is engaged with the first gear (12), and the two-stage gear shaft (13) is engaged with the three-stage gear (8).

4. The high strength electric rope hoist travel gear reduction motor assembly of claim 1, wherein, The front end of the motor shell (1) is provided with a junction box (3), the top of the other side of the inside of the motor end cover (4) is provided with a stabilizing bearing (14), one side of the motor rotor (16) penetrates the inside of the stabilizing bearing (14), and one side of the stabilizing bearing (14) of the outside of the motor rotor (16) is provided with a wave washer (15).

5. The high strength electric rope hoist travel gear reduction motor assembly of claim 1, wherein, The inside of the shield (2) on one side of the motor shell (1) is provided with an electromagnetic brake seat (17), one side of the electromagnetic brake seat (17) is provided with a movable brake disc (19), a spring (18) is arranged at the middle position of one side of the electromagnetic brake seat (17), one side of the movable brake disc (19) is provided with a brake pad (20), one side of the brake pad (20) is provided with a brake wheel (21), one side of the brake wheel (21) is provided with a connecting flange (24), and one side of the motor rotor (16) is fixedly connected by penetrating the inside of the movable brake disc (19) and the brake pad (20) and the middle position of the inside of the brake wheel (21).

6. The high strength electric rope hoist travel gear reduction motor assembly of claim 1, wherein, The heat dissipation dustproof assembly comprises a heat dissipation groove (22), and the heat dissipation groove (22) is arranged at the rear end of the inside of the shield (2).

Images