Speed regulation type gearbox for motor

Abstract

The utility model discloses a speed regulation type gear box for a motor, which relates to the technical field of speed regulation type gear boxes and comprises a gear box body, a connecting end is mounted on one side of the gear box body, a connecting end is mounted at one end of the gear box body, and a conveying and filtering mechanism is arranged in the gear box body. The conveying and filtering mechanism comprises a filter screen, a first gear and a second gear, a mounting cavity is formed in the gearbox body, the second gear is fixedly mounted on the side wall of the output end and located in the mounting cavity, and the first gear is rotationally connected into the mounting cavity; according to the technical scheme, the conveying and filtering mechanism is adopted, when the output end rotates, the second gear can be driven to rotate, so that the first gear is driven to rotate in an engaged mode, and lubricating oil at the bottom end in the gearbox body can be pumped into the second conveying groove through the first conveying groove; and in the process, the filter screen can filter the lubricating oil passing through the first conveying groove, so that the lubricating effect is greatly improved, and the service life of the lubricating oil is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of speed-regulating gearboxes, and particularly to a speed-regulating gearbox for an electric motor. Background Art

[0002] A speed-regulating gearbox for an electric motor is a mechanical device used to adjust the rotational speed and torque output of the electric motor. This kind of gearbox is usually used in conjunction with the electric motor to meet the specific requirements for speed and torque in different application scenarios. Function: The speed-regulating gearbox can reduce the rotational speed of the electric motor while increasing the torque output, or adjust the ratio of speed and torque as needed. Working principle: By changing the meshing mode of the gears inside the gearbox, the adjustment of the rotational speed of the output shaft is achieved. Usually, the reduction ratio of the gearbox is the ratio of the rotational speed of the input shaft to the rotational speed of the output shaft. Types: There are various types of speed-regulating gearboxes, including but not limited to planetary gearboxes, helical gearboxes, spur gearboxes, worm and worm gearboxes, etc.

[0003] During lubrication inside the traditional speed-regulating gearbox for an electric motor, the lubricating oil at the bottom of the gearbox is usually lifted by the rotation of the internal gears for lubrication, which easily causes impurities to accumulate inside the lubricating oil, thereby affecting the lubrication effect and the service life of the lubricating oil. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a speed-regulating gearbox for an electric motor to solve the problem that impurities easily accumulate inside the lubricating oil in the prior art, thereby affecting the lubrication effect and the service life of the lubricating oil.

[0005] In view of this, the utility model provides a speed-regulating gearbox for an electric motor, which includes a gearbox body. A connection end is installed on one side of the gearbox body, and a connection end is installed at one end of the gearbox body. A conveying and filtering mechanism is arranged inside the gearbox body;

[0006] The conveying and filtering mechanism includes a filter screen, a first gear, and a second gear. An installation cavity is formed inside the gearbox body. The second gear is fixedly installed on the side wall of the output end and is located inside the installation cavity. The first gear is rotatably connected inside the installation cavity and meshes with the second gear. A first conveying groove communicating with each other is formed at the bottom of the installation cavity, and the filter screen is fixedly installed on the inner wall of the first conveying groove. A second conveying groove communicating with each other is formed at the top of the installation cavity.

[0007] Optionally, one end of the first conveying groove communicates with the bottom end inside the gearbox body, and one end of the second conveying groove is located at the top of the gearbox body.

[0008] Optionally, several filter screens are provided.

[0009] Optionally, a through hole communicating with the gear box body is provided at the bottom of one end of the second conveying groove.

[0010] Optionally, a pressure mechanism is arranged inside the through hole.

[0011] Optionally, the pressure mechanism includes a mounting frame, a tension spring and a seal. The mounting frame is fixedly installed on the inner wall of the through hole. The seal is movably connected to the bottom of the mounting frame through the tension spring, and the seal is located inside the through hole.

[0012] Optionally, the mounting frame is an annular frame.

[0013] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

[0014] 1. For the speed-regulating gear box for a motor of the present invention, a conveying and filtering mechanism is adopted. When the output end rotates, the second gear can be driven to rotate, so as to drive the first gear to mesh and rotate. In this way, the lubricating oil at the bottom end inside the gear box body can be pumped to the second conveying groove through the first conveying groove. During this process, the filter screen can filter the lubricating oil passing through the first conveying groove, thereby greatly improving the lubrication effect and the service life of the lubricating oil.

[0015] 2. For the speed-regulating gear box for a motor of the present invention, the design of the pressure mechanism is adopted. With such a design, when a certain amount of lubricating oil accumulates on the top of the seal, it will slide downward. At this time, the lubricating oil will flow to the internal components of the gear box body through the gap between the seal and the through hole, so as to achieve regular and uniform oiling, making the lubrication effect better.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present invention with reference to the drawings:

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a partial cross-sectional structural diagram of the present invention;

[0020] Figure 3 is of the present invention Figure 2 the enlarged structural diagram at A in;

[0021] Figure 4 is a cross-sectional structural diagram of the installation cavity of the present invention.

[0022] Description of reference numerals: 1, gear housing; 2, connection end; 3, output end; 4, first conveying groove; 5, filter screen; 6, installation cavity; 7, second conveying groove; 8, through hole; 9, mounting bracket; 10, tension spring; 11, seal; 12, first gear; 13, second gear. Detailed implementation manners

[0023] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0024] The following specifically describes a speed-regulating type gearbox for a motor according to an embodiment of the present invention with reference to the accompanying drawings.

[0025] Embodiment 1

[0026] For the convenience of understanding, please refer to Figures 1 to 4 , an embodiment of a speed-regulating type gearbox for a motor provided by the present invention, including a gear housing 1, a connection end 2 is installed on one side of the gear housing 1, a connection end 2 is installed at one end of the gear housing 1, and a conveying and filtering mechanism is arranged inside the gear housing 1;

[0027] The conveying and filtering mechanism includes a filter screen 5, a first gear 12 and a second gear 13. An installation cavity 6 is opened inside the gear housing 1. The second gear 13 is fixedly installed on the side wall of the output end 3. The second gear 13 is located inside the installation cavity 6. The first gear 12 is rotatably connected inside the installation cavity 6. The first gear 12 engages with the second gear 13. A first conveying groove 4 communicating with each other is opened at the bottom of the installation cavity 6. The filter screen 5 is fixedly installed on the inner wall of the first conveying groove 4. A second conveying groove 7 communicating with each other is opened at the top of the installation cavity 6. One end of the first conveying groove 4 communicates with the bottom end inside the gear housing 1, and one end of the second conveying groove 7 is located at the top of the gear housing 1.

[0028] It should be noted that by providing the connection end 2 and the output end 3, it can be used to connect a motor or other devices. By providing the second gear 13 on the side wall of the output end 3, when the output end 3 rotates, it can drive the second gear 13 to rotate, thereby driving the first gear 12 to engage and rotate. In this way, the lubricating oil at the bottom end inside the gear housing 1 can be pumped to the second conveying groove 7 through the first conveying groove 4. During this process, the filter screen 5 can filter the lubricating oil passing through the first conveying groove 4, thereby greatly improving the lubrication effect and the service life of the lubricating oil.

[0029] In some embodiments, as Figure 4 shown, a plurality of filter screens 5 are provided.

[0030] It should be noted that by arranging a plurality of filter screens 5, the lubricating oil can be filtered multiple times.

[0031] In some embodiments, as Figure 3 shown, a through hole 8 communicating with the gear box body 1 is provided at the bottom of one end of the second conveying tank 7.

[0032] It should be noted that by arranging the through hole 8, the lubricating oil inside the second conveying tank 7 can flow through the through hole 8 to the internal components of the gear box body 1.

[0033] Embodiment 2

[0034] In some embodiments, as Figure 3 shown, a pressure mechanism is arranged inside the through hole 8. The pressure mechanism includes a mounting frame 9, a tension spring 10 and a seal 11. The mounting frame 9 is fixedly installed on the inner wall of the through hole 8. The seal 11 is movably connected to the bottom of the mounting frame 9 through the tension spring 10. The seal 11 is located inside the through hole 8, and the mounting frame 9 is an annular frame.

[0035] It should be noted that by arranging the tension spring 10, the seal 11 can be pulled upward to block the through hole 8. When a certain amount of lubricating oil accumulates on the top of the seal 11, it will slide downward. At this time, the lubricating oil will flow through the gap between the seal 11 and the through hole 8 to the internal components of the gear box body 1, so as to achieve regular and uniform oil supply, and make the lubrication effect better.

[0036] Working principle: When in use, the connection end 2 and the output end 3 can be used to connect to a motor or other devices. When the output end 3 rotates, it can drive the second gear 13 to rotate, thereby driving the first gear 12 to engage and rotate. In this way, the lubricating oil at the bottom end inside the gear box body 1 can be pumped to the second conveying tank 7 through the first conveying tank 4. During this process, the filter screen 5 can filter the lubricating oil passing through the first conveying tank 4. When a certain amount of lubricating oil accumulates on the top of the seal 11, it will slide downward. At this time, the lubricating oil will flow through the gap between the seal 11 and the through hole 8 to the internal components of the gear box body 1, so as to achieve regular and uniform oil supply.

[0037] The above is the case. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A speed-regulating gearbox for a motor, characterized in that: It comprises a gear box (1), a connecting end (2) is installed on one side of the gear box (1), a connecting end (2) is installed on one end of the gear box (1), and a conveying and filtering mechanism is arranged inside the gear box (1); The conveying and filtering mechanism comprises a filter screen (5), a first gear (12) and a second gear (13); a mounting cavity (6) is provided inside the gear housing (1); the second gear (13) is fixedly mounted on a side wall of an output end (3); the second gear (13) is located inside the mounting cavity (6); the first gear (12) is rotatably connected inside the mounting cavity (6); the first gear (12) and the second gear (13) are matched; a first conveying groove (4) is provided at the bottom of the mounting cavity (6); the filter screen (5) is fixedly mounted on an inner wall of the first conveying groove (4); and a second conveying groove (7) is provided at the top of the mounting cavity (6).

2. The speed-adjustable gearbox for a motor according to claim 1, characterized in that: One end of the first conveying groove (4) is connected to the bottom end of the gear housing (1), and one end of the second conveying groove (7) is located at the top of the gear housing (1).

3. The speed-adjustable gearbox for a motor according to claim 1, characterized in that: A plurality of filter screens (5) are provided.

4. The speed-adjustable gearbox for a motor according to claim 1, characterized in that: A through hole (8) communicating with the gear box body (1) is provided at the bottom of one end of the second conveying groove (7).

5. The speed-adjustable gearbox for a motor according to claim 4, characterized in that: A pressure mechanism is arranged inside the through hole (8).

6. The speed-adjustable gearbox for a motor according to claim 5, characterized in that: The pressure mechanism comprises a mounting frame (9), a tension spring (10) and a sealing member (11); the mounting frame (9) is fixedly mounted on the inner wall of the through hole (8); the sealing member (11) is movably connected to the bottom of the mounting frame (9) via the tension spring (10); and the sealing member (11) is located inside the through hole (8).

7. The speed-adjustable gearbox for a motor according to claim 6, characterized in that: The mounting frame (9) is a ring-shaped frame.

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