Speed-adjustable motor gear

Abstract

The utility model relates to the field of motors, and discloses a speed-adjustable motor gear, which comprises a motor box, a motor body is fixedly arranged at the inner bottom end of the motor box, a first gear is fixedly sleeved at the output end of the motor body, and a gear box is fixedly arranged at the top end of the motor box. Two supporting rods are fixedly arranged at the position, close to the rear side, of the inner bottom end of the gearbox, the upper ends of the two supporting rods are rotationally sleeved with a double-layer gear and a second gear correspondingly, and an output rod is rotationally arranged on one side of the center of the inner bottom end of the gearbox; a third gear fixedly sleeves the middle position of the output rod, an oil cover sleeves one side of the top end of the first gear in a threaded mode, an oil seepage opening is formed in the center of each tooth groove of the first gear, an oil storage groove is formed in the first gear, and the output end of the motor body penetrates through the motor box and is communicated to the inner center of the gear box. Lubricating oil can permeate out of the gear, and frequent oiling operation on the gear is not needed.

Description

Technical Field

[0001] This utility model relates to the field of motors, and more particularly to a speed-adjustable motor gear. Background Technology

[0002] Speed-regulating motor gears refer to gear transmission systems or related components used in conjunction with motors to achieve speed regulation. It is not a single component, but rather a device that, through gear combinations, transmission ratio adjustments, or linkage with a speed-regulating mechanism, allows the motor's output speed to be changed according to requirements.

[0003] Existing motor gears can proportionally adjust the motor's output speed by changing the gear ratio. For example, when the number of teeth on the driving gear is less than that on the driven gear, the driven gear's speed decreases, and vice versa. However, with long-term operation, the gears require repeated lubrication, and frequently disassembling the housing to apply lubricant is inconvenient.

[0004] Therefore, those skilled in the art have provided a speed-adjustable motor gear to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a speed-adjustable motor gear that allows lubricating oil to seep out, eliminating the need for frequent oiling.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An adjustable speed motor gear includes a motor housing. A motor body is fixedly installed at the bottom of the motor housing. A first gear is fixedly fitted at the output end of the motor body. A gearbox is fixedly installed at the top of the motor housing. Two support rods are fixedly installed at the rear side of the bottom of the gearbox. A double-layer gear and a second gear are respectively rotatably fitted at the upper ends of the two support rods. An output rod is rotatably installed at the center side of the bottom of the gearbox. A third gear is fixedly fitted at the middle position of the output rod. An oil cap is threaded onto one side of the top of the first gear. An oil seepage port is opened at the center of each tooth groove of the first gear. An oil storage groove is opened inside the first gear.

[0008] Furthermore, the gearbox is fixed with a top cover by bolts, and the output rod is rotatably disposed in a hole in the top cover.

[0009] Furthermore, the output end of the motor body passes through the motor box and extends to the internal center of the gearbox.

[0010] Furthermore, the oil seepage port is connected to the oil storage tank, and the No. 1 gear, No. 2 gear, No. 3 gear and the double-layer gear have the same structure.

[0011] Furthermore, the driving gear meshes with the lower gear of the double-layer gear, and the upper gear of the double-layer gear meshes with the driven gear.

[0012] Furthermore, the driven gear is meshed with the output gear.

[0013] This utility model has the following beneficial effects:

[0014] This invention discloses a speed-adjustable motor gear. Each gear tooth groove has an oil seepage hole, allowing the lubricating oil stored inside the gear to slowly seep out. The seepage holes are very small, and the centrifugal force generated by rotation hardly accelerates the seepage of lubricating oil. Users do not need to frequently apply lubricating oil; they only need to periodically add lubricating oil to the oil reservoir. The top of the device is equipped with a bolt-on cap for easy access to lubricate the gears. An oil cap is attached to the gear, threadedly connected to the gear for easy disassembly and lubrication. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main body of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the main body of this utility model;

[0017] Figure 3 This is a schematic diagram of the gear assembly of this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the gear of this utility model;

[0019] Figure 5 This is a schematic diagram of the gear layout of this utility model;

[0020] Figure 6 This is a schematic diagram of the overall oil cap of this utility model.

[0021] Legend:

[0022] 1. Motor box; 2. Motor body; 3. Gearbox; 4. Oil cap; 5. Gear No. 1; 6. Double-layer gear; 7. Support rod; 8. Output rod; 9. Gear No. 2; 10. Gear No. 3; 11. Oil leak port; 12. Oil reservoir. 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] Reference Figures 1 to 6 One embodiment provided by this utility model:

[0025] A speed-adjustable motor gear includes a motor housing 1. A motor body 2 is fixedly installed at the bottom of the motor housing 1. A first gear 5 is fixedly fitted at the output end of the motor body 2. A gearbox 3 is fixedly installed at the top of the motor housing 1. Two support rods 7 are fixedly installed at the rear side of the bottom of the gearbox 3. A double-layer gear 6 and a second gear 9 are respectively rotatably fitted at the upper end of the two support rods 7. An output rod 8 is rotatably installed on one side of the center of the bottom of the gearbox 3. A third gear 10 is fixedly fitted on the middle position of the output rod 8. An oil cap 4 is threaded on one side of the top of the first gear 5. An oil seepage port 11 is opened at the center of each tooth groove of the first gear 5. An oil storage tank 12 is opened inside the first gear 5.

[0026] Specifically, the top structure of the oil cap 4 can be hooked and unscrewed with a small, curved tool for lubrication. Once screwed on, the oil cap 4 is almost flush with the gear plane, ensuring no impact on meshing. The oil leak port 11 has a very small opening, allowing only slow oil seepage. Even after the machine starts, centrifugal force will not significantly increase the flow rate, maintaining a slow seepage. The bottom of the oil reservoir 12 features a sloping design to prevent lubricating oil from remaining inside and wasting.

[0027] Reference Figures 1 to 6 The gearbox 3 is fixed with a top cover by bolts. The output rod 8 is rotatably installed in the hole of the top cover. The output end of the motor body 2 passes through the motor box 1 and leads to the internal center of the gearbox 3. The oil seepage port 11 is connected to the oil storage tank 12. The first gear 5, the second gear 9, the third gear 10 and the double-layer gear 6 have the same structure. The first gear 5 is meshed with the lower gear of the double-layer gear 6. The upper gear of the double-layer gear 6 is meshed with the second gear 9. The second gear 9 is meshed with the third gear 10.

[0028] Specifically, a bearing is installed on the output rod 8, which fits snugly into the hole in the top cover. The bearing is installed to prevent slight wobbling of the output rod 8 due to vibration of the instrument, and it makes the structure more stable. All gears adopt the same design, which ensures that each meshing point is lubricated, greatly reducing power loss and instrument wear.

[0029] Working principle: Unscrew the bolts to open the top cover, unscrew the oil cap 4 on the gear, add lubricating oil to the inside of the gear, then screw the oil cap 4 back on. Repeat the same operation for all gears. Apply lubricating oil to the surface of the gears for the first time or after a long period of non-use to prevent slow oil seepage from damaging the instrument. After finishing, screw the bolts back on and close the top cover. Open the motor body 2. The motor output drives gear 1 5, gear 1 5 drives double-layer gear 6, double-layer gear 6 drives gear 2 9, gear 2 9 drives gear 3 10, and gear 3 10 drives the output rod 8 to rotate.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 speed-adjustable motor gear, comprising a motor housing (1), characterized in that: The motor body (2) is fixedly installed at the bottom of the motor box (1). The output end of the motor body (2) is fixedly fitted with a first gear (5). The top of the motor box (1) is fixedly installed with a gearbox (3). The bottom of the gearbox (3) is fixedly installed with two support rods (7) on the rear side. The upper ends of the two support rods (7) are respectively rotatably fitted with a double-layer gear (6) and a second gear (9). The bottom center side of the gearbox (3) is rotatably installed with an output rod (8). The output rod (8) is fixedly fitted with a third gear (10) near the middle position. An oil cap (4) is threaded on one side of the top of the first gear (5), an oil seepage port (11) is opened at the center of each tooth groove of the first gear (5), and an oil storage tank (12) is opened inside the first gear (5).

2. The speed-adjustable motor gear according to claim 1, characterized in that: The gearbox (3) is fixed with a top cover by bolts, and the output rod (8) is rotatably installed in the hole of the top cover.

3. The speed-adjustable motor gear according to claim 1, characterized in that: The output end of the motor body (2) passes through the motor box (1) and leads to the internal center of the gearbox (3).

4. The speed-adjustable motor gear according to claim 1, characterized in that: The oil seepage port (11) is connected to the oil storage tank (12), and the first gear (5), the second gear (9), the third gear (10) and the double-layer gear (6) have the same structure.

5. A speed-adjustable motor gear according to claim 1, characterized in that: The first gear (5) meshes with the lower gear of the double-layer gear (6), and the upper gear of the double-layer gear (6) meshes with the second gear (9).

6. The speed-adjustable motor gear according to claim 1, characterized in that: The second gear (9) is meshed with the third gear (10).

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