Speed reduction structure of starter

Abstract

The utility model discloses a starter speed reduction structure which comprises a speed reduction box, a driven gear is arranged in the speed reduction box through a connecting shaft, a driving gear meshed and connected with the driven gear is further arranged in the speed reduction box through a driving shaft in a rotating mode, a limiting groove is formed in the middle in the driven gear, and a limiting protruding plate is arranged in the middle outside the driving gear. A limiting groove is formed in the middle of the interior of the driven gear, a limiting protruding plate is arranged in the middle of the exterior of the driving gear, the limiting protruding plate is clamped in the limiting groove, and the liquid storage box is arranged in the position, on the upper portion of the driven gear, of the reduction box through a lifting machine frame, and an oil dripping hole and an oil coating layer are arranged on the lower side of the liquid storage box. The stability of meshing connection of the driven gear and the driving gear can be improved, the axial dislocation prevention effect is good, the liquid storage box is arranged in the reduction gearbox on the upper portion of the driven gear through the lifting rack, and the oil dripping hole and the oil coating layer are arranged on the lower side of the liquid storage box, so that one side of the driven gear is conveniently coated with oil, the oil coating uniformity is high, and the oil coating efficiency is improved. And the oiling operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of starter deceleration, and particularly relates to a starter deceleration structure. Background Technique

[0002] Starters are classified into DC starters, gasoline starters, compressed air starters, etc. according to their working principles. Most internal combustion engines use DC starters, which are characterized by a compact structure, simple operation and easy maintenance. A gasoline starter is a small gasoline engine with a clutch and a speed change mechanism, which has a large power and is less affected by temperature. It can start large internal combustion engines and is suitable for high-cold regions. Compressed air starters are divided into two categories. One is to inject compressed air into the cylinder according to the working sequence, and the other is to use a pneumatic motor to drive the flywheel. The application of compressed air starters is similar to that of gasoline starters, and they are usually used for starting large internal combustion engines. A deceleration structure is required during the use of a starter.

[0003] In the prior art, a high-protection starter reducer structure with the application number 202010828213.9 includes a one-way clutch, a sealing ring, an internal gear ring, and a middle cover; a sleeve is installed at one end of the one-way clutch, and at least one planetary gear is eccentrically rotatably connected to the other end surface of the sleeve relative to the one-way clutch; the inner wall of the sealing ring is in interference fit with the outer wall of the sleeve, and the interference amount is 0.5-1.2 mm; a structure groove is opened in the part of the inner wall of the sealing ring that is in contact with the sleeve, and the structure groove is filled with grease; the internal gear ring is fixed to the sealing ring, and an annular internal gear meshing with the planetary gear is provided on the inner wall of the internal gear ring. In the present invention, the inner wall of the sealing ring is in interference fit with the outer wall of the sleeve, which prevents the grease from flowing out between the sealing ring and the sleeve, and has an appropriate interference amount, which can reduce the running resistance of the one-way clutch and ensure the flexible operation of the one-way clutch. However, the stability of the meshing connection of the reduction gears is relatively low, and it is not convenient to apply oil to one side of the gears, and the oil application uniformity is relatively low. Content of the Utility Model

[0004] The purpose of the utility model is to provide a starter deceleration structure to solve the problems in the prior art that the stability of the meshing connection of the reduction gears is relatively low, it is not convenient to apply oil to one side of the gears, and the oil application uniformity is relatively low.

[0005] To achieve the above object, the present utility model provides the following technical solution: A starter deceleration structure includes a reduction gearbox. Inside the reduction gearbox, a driven gear is provided through a connecting shaft. Inside the reduction gearbox, a driving gear meshed with the driven gear is also rotatably provided through a driving shaft. A limiting groove is provided in the middle of the driven gear, and a limiting convex plate is provided in the middle of the outside of the driving gear. Inside the reduction gearbox above the driven gear, a liquid storage box is provided through a lifting frame. An oil dripping hole and an oil coating layer are provided on the lower side of the liquid storage box. The lifting frame is threadedly connected to a screw rod above the reduction gearbox.

[0006] Further, the limiting groove is an annular groove, and the limiting convex plate is a circular plate.

[0007] Further, the inner diameter of the limiting groove is smaller than the outer diameter of the driven gear, and the outer diameter of the limiting convex plate is larger than the outer diameter of the driving gear.

[0008] Further, the lifting frame is a U-shaped frame, and the lifting frame slidably penetrates through a limiting sliding hole above the reduction gearbox.

[0009] Further, an oil injection channel is provided inside one end of the lifting frame. One end of the oil injection channel is communicated with the liquid storage box, and an oil injection port is provided at one end of the oil injection channel.

[0010] Further, a regulating valve is provided on the oil injection port, and an oil injection funnel is provided at one end of the oil injection port.

[0011] Further, one end of the screw rod is rotatably provided on the upper side of the reduction gearbox through a bearing, and an adjusting handle is provided at one end of the screw rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. In the present utility model, a limiting groove is provided in the middle of the driven gear, and a limiting convex plate is provided in the middle of the outside of the driving gear. By clamping the limiting convex plate in the limiting groove, the stability of the meshing connection between the driven gear and the driving gear can be improved, and the anti-axial dislocation effect is better.

[0014] 2. Moreover, in the present utility model, a liquid storage box is provided through a lifting frame inside the reduction gearbox above the driven gear. An oil dripping hole and an oil coating layer are provided on the lower side of the liquid storage box, which facilitates the oil coating treatment on one side of the driven gear, with high oil coating uniformity and convenient and fast oil coating operation.

[0015] 3. In the present utility model, the lifting frame is threadedly connected to a screw rod above the reduction gearbox. The lifting frame is a U-shaped frame, and the lifting frame slidably penetrates through a limiting sliding hole above the reduction gearbox. By rotating the screw rod, the lifting frame can be adjusted up and down, so as to adjust the use height of the oil coating layer, meet the oil coating use treatment with different forces, and when the oil coating layer is not used, it can be retracted to the top inside the reduction gearbox, improving the flexibility of oil coating use. Brief Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the liquid storage box of the present utility model;

[0019] Figure 3 is a top view of the gear structure of the present utility model;

[0020] Figure 4 is a front view of the internal structure of the lifting frame of the present utility model.

[0021] In the drawings: 1, speed reducer; 2, connecting shaft; 3, driven gear; 4, driving shaft; 5, limiting groove; 6, driving gear; 7, limiting convex plate; 8, lifting frame; 9, liquid storage box; 10, oil coating layer; 11, screw rod; 12, bearing; 13, adjusting handle; 14, oil filling port; 15, limiting sliding hole; 16, oil filling funnel; 17, oil dripping hole; 18, oil filling channel; 19, regulating valve. Detailed Description of the Preferred Embodiment

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, in the embodiment of the present utility model, a starter deceleration structure includes a reduction gearbox 1. Inside the reduction gearbox 1, a driven gear 3 is provided through a connecting shaft 2. Inside the reduction gearbox 1, a driving gear 6 meshing with the driven gear 3 is rotatably provided through a driving shaft 4. A limiting groove 5 is provided in the middle of the driven gear 3, and a limiting convex plate 7 is provided in the middle of the outside of the driving gear 6. The limiting groove 5 is an annular groove, and the limiting convex plate 7 is a circular plate. The inner diameter of the limiting groove 5 is smaller than the outer diameter of the driven gear 3, and the outer diameter of the limiting convex plate 7 is larger than the outer diameter of the driving gear 6. By clamping the limiting convex plate 7 in the limiting groove 5, the stability of the meshing connection between the driven gear 3 and the driving gear 6 can be improved, and the anti-axial dislocation effect is better. Moreover, the limiting groove 5 can be used to store a certain amount of lubricating oil, which is convenient for improving the lubrication effect of the gear set.

[0024] As Figure 1 , Figure 2 and Figure 4 shown, in order to facilitate the oiling treatment of one side of the driven gear 3, a liquid storage box 9 is further provided in the reduction gearbox 1 above the driven gear 3 through a lifting frame 8. An oil injection channel 18 is provided inside one end of the lifting frame 8. One end of the oil injection channel 18 communicates with the liquid storage box 9, and an oil injection port 14 is provided at one end of the oil injection channel 18. A regulating valve 19 is provided on the oil injection port 14 to facilitate controlling the oil injection amount of the oil injection port 14. An oil injection funnel 16 is provided at one end of the oil injection port 14. A drip hole 17 and an oiling layer 10 are provided on the lower side of the liquid storage box 9, so that it is convenient to perform the oiling treatment on one side of the driven gear 3, the oiling uniformity is relatively high, and the oiling operation is convenient and fast. The lifting frame 8 is threadedly connected to a screw 11 above the reduction gearbox 1. The lifting frame 8 is a U-shaped frame, and the lifting frame 8 slidably penetrates through a limiting sliding hole 15 above the reduction gearbox 1. By rotating the screw 11, the lifting and lowering of the lifting frame can be adjusted, so that the use height of the oiling layer 10 can be adjusted to meet the oiling use treatment with different intensities. Moreover, when the oiling layer 10 is not in use, it can be retracted to the top inside the reduction gearbox 1, improving the flexibility of oiling use.

[0025] As Figure 1 , in order to rotate and adjust one end of the screw 11, one end of the screw 11 is rotatably provided on the upper side of the reduction gearbox 1 through a bearing 12, and an adjusting handle 13 is provided at one end of the screw 11 to facilitate rotating and adjusting one end of the screw 11.

[0026] Working principle and usage process of the present utility model: During use, a liquid storage box 9 is provided in a speed reduction box 1 above a driven gear 3 through a lifting frame 8. An oil dripping hole 17 and an oil coating layer 10 are provided on the lower side of the liquid storage box 9, facilitating oil coating treatment on one side of the driven gear 3, with high oil coating uniformity and convenient and fast oil coating operation. Moreover, the lifting frame 8 is threadedly connected to a screw rod 11 above the speed reduction box 1. The lifting frame 8 is a U-shaped frame and is slidably arranged through a limit sliding hole 15 above the speed reduction box 1, enabling the lifting adjustment of the lifting frame 8 by rotating the screw rod 11, thereby being able to adjust the use height of the oil coating layer 10 to meet oil coating use processing with different forces. Moreover, when the oil coating layer 10 is not in use, it can be retracted to the top inside the speed reduction box 1, improving the flexibility of oil coating use.

[0027] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A starter reduction structure, comprising a reduction box (1), characterized in that: Inside the speed reducer (1), a driven gear (3) is provided through a connecting shaft (2). Inside the speed reducer (1), a driving gear (6) meshing with the driven gear (3) is rotatably provided through a driving shaft (4). A limiting groove (5) is provided in the middle of the driven gear (3), and a limiting convex plate (7) is provided in the middle of the outside of the driving gear (6). Inside the speed reducer (1) above the driven gear (3), a liquid storage box (9) is provided through a lifting frame (8). A drip oil hole (17) and an oil coating layer (10) are provided on the lower side of the liquid storage box (9). The lifting frame (8) is threadedly connected to a screw rod (11) above the speed reducer (1).

2. A starter deceleration structure according to claim 1, characterized in that: The limiting groove (5) is an annular groove, and the limiting convex plate (7) is a circular plate.

3. A starter deceleration structure according to claim 2, characterized in that: The inner diameter of the limiting groove (5) is smaller than the outer diameter of the driven gear (3), and the outer diameter of the limiting convex plate (7) is larger than the outer diameter of the driving gear (6).

4. A starter deceleration structure according to claim 1, characterized in that: The lifting frame (8) is a U-shaped frame, and the lifting frame (8) is slidably arranged through a limiting sliding hole (15) above the speed reducer (1).

5. A starter deceleration structure according to claim 4, characterized in that: An oil injection channel (18) is provided inside one end of the lifting frame (8). One end of the oil injection channel (18) communicates with the liquid storage box (9), and an oil injection port (14) is provided at one end of the oil injection channel (18).

6. A starter deceleration structure according to claim 5, characterized in that: A regulating valve (19) is provided on the oil injection port (14), and an oil injection funnel (16) is provided at one end of the oil injection port (14).

7. A starter deceleration structure according to claim 5, characterized in that: One end of the screw rod (11) is rotatably arranged on the upper side of the speed reducer (1) through a bearing (12), and an adjusting handle (13) is provided at one end of the screw rod (11).

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