Quick replacement structure of gear of speed reducer

Abstract

The utility model provides a kind of gear quick replacement structure of speed reducer, it is related to speed reducer gear replacement technical field, the utility model, including speed reducer shell, the speed reducer shell is equipped with two and is combined together, and gear and pinion are arranged in the groove in the speed reducer shell, the engagement of this pinion and gear is connected, by pulling movable handle and driving moving block and positioning rod along track column and moving in the direction of far from seal disc, positioning rod is disconnected between the connection of insertion rod, and then the positioning of seal disc and insertion rod is removed in the side surface installation of speed reducer shell, then let seal disc and insertion rod move outward, make insertion rod disengage from the clamping of two speed reducer shells and remove the positioning between the two, so that it can be separated subsequently, without carrying out the one-by-one dismounting work of multiple bolts, the separation operation of two speed reducer shells can be more simple and convenient, save time, so that small pinion and gear can be replaced more quickly.

Description

Technical Field

[0001] This utility model relates to the field of gear replacement technology for speed reducers, and in particular to a quick gear replacement structure for speed reducers. Background Technology

[0002] A speed reducer is an independent component consisting of gear drives, worm drives, or gear-worm drives enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between a prime mover and a driven machine. It plays a role in matching speeds and transmitting torque between the prime mover and the driven machine or actuator, and its applications are extremely widespread in modern machinery.

[0003] However, in the existing technology, after long-term use, the small gear and large gear installed inside the existing reducer will wear out. In order to ensure the long-term normal operation of the reducer, the small gear and large gear need to be replaced regularly. However, to remove the small gear and large gear from the reducer for replacement, the two combined housings in the reducer need to be separated first. When separating the two combined housings, the bolts on them need to be removed one by one before the two housings can be separated, and then the gears can be replaced. This wastes a lot of time and the gear replacement efficiency is low. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the existing technology: to remove and replace the small gear and the large gear from the reducer, it is necessary to first separate the two combined housings in the reducer. When separating the two combined housings, it is necessary to remove the bolts on them one by one before the two housings can be separated, and then the gears can be replaced, which wastes a lot of time and has low gear replacement efficiency.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a quick-change gear replacement structure for a speed reducer, comprising a speed reducer housing, wherein two speed reducer housings are provided and assembled vertically, and a small gear and a large gear are arranged in a groove within the speed reducer housing. The small gear and the large gear are meshed with each other. A rotating shaft is interference-fitted to the center of each small gear and the large gear. Bearings are interference-fitted to the front and rear sides of the rotating shafts located on the front and rear sides of the small gear, and the bearings are transitionally engaged at the arc-shaped notch of the speed reducer housing. The two speed reducer housings are then combined. A sealing disc is inserted through the notch, and one end of the rotating shaft is connected to the sealing disc. A plug is fixed to one side of the sealing disc, and the plug engages with the reducer housing. Track columns are fixed to the front and rear sides of the reducer housing, and springs are fitted on the outer surface of the track columns. A moving block slides through the track column, and a positioning rod is fixed to one side of the moving block. The positioning rod passes through the reducer housing and engages with the plug. Fixed blocks are fixed to some surfaces of the moving block, and movable handles are inserted through the fixed blocks. One end of the movable handle engages with the surface of the reducer housing.

[0006] In a preferred embodiment, a limiting plate is fixedly connected to the surface of the movable handle.

[0007] In a preferred embodiment, connecting rods are fixedly connected to both ends of the movable block.

[0008] In a preferred embodiment, a pulling hole is provided on the side surface of the sealing disc.

[0009] In a preferred embodiment, each of the four corners of one of the reducer housings is fixed with a locking pin, and the locking pin is engaged with the other reducer housing.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] This invention allows for the separation of two reducer housings to replace the small and large gears. By pulling the movable handle, the moving block and positioning rod move along the track column away from the sealing plate, disengaging the positioning rod from the insertion rod. This releases the sealing plate and insertion rod from their positioning on the side of the reducer housing. The sealing plate and insertion rod then move outwards, disengaging the insertion rod from the two reducer housings and releasing their positioning. This allows for subsequent separation without the need to disassemble multiple bolts one by one, making the separation of the two reducer housings simpler, faster, and more time-saving, thus facilitating quicker replacement of the small and large gears. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of the gearbox housing when the gearbox quick-change structure for the gearbox is assembled;

[0013] Figure 2 A schematic diagram of the structure of a speed reducer housing when the gear quick-change structure of the present invention is separated;

[0014] Figure 3 This is a schematic diagram of the structure around the moving block of a gear quick-change structure for a speed reducer provided by this utility model.

[0015] Legend:

[0016] 1. Gearbox housing; 2. Pinion gear; 3. Gear; 4. Shaft; 5. Bearing; 6. Sealing plate; 7. Insert rod; 8. Track column; 9. Spring; 10. Moving block; 11. Positioning rod; 12. Fixing block; 13. Movable handle; 14. Limiting plate; 15. Connecting rod; 16. Pull hole; 17. Locking post. Detailed Implementation

[0017] 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.

[0018] Example 1

[0019] like Figure 1-3As shown, this utility model provides a technical solution: a quick-change structure for a speed reducer gear, including a speed reducer housing 1. Two speed reducer housings 1 are provided and assembled vertically. The two housings 1 together provide protection for a small gear 2 and a large gear 3. The small gear 2 and large gear 3 are arranged in a groove within the speed reducer housing 1, meshing with each other. A rotating shaft 4 is interference-fitted to the center of both the small gear 2 and the large gear 3. Bearings 5 ​​are interference-fitted to the front and rear sides of the rotating shaft 4 near the small gear 2, and the bearings 5 ​​are transitionally fitted at the arc-shaped notch of the speed reducer housing 1. The cooperation of the rotating shaft 4 and the bearings 5 ​​improves the stability of the small gear 2 and the large gear 3 during rotation. A sealing plate 6 is inserted through the notch of the assembled housing 1. One end of the rotating shaft 4 is connected to the sealing plate 6. A plug rod 7 is fixed on one side of the sealing plate 6. The plug rod 7 engages with the reducer housing 1. By engaging the plug rod 7 on the sealing plate 6 with the two assembled reducer housings 1, the two reducer housings 1 are positioned to maintain the stability of the assembly. Track posts 8 are fixed on the front and rear sides of the reducer housing 1. Springs 9 are sleeved on the outer surface of the track posts 8. A moving block 10 slides through the track post 8. A positioning rod 11 is fixedly connected to one side of the moving block 10. The positioning rod 11 passes through the reducer housing 1 and engages with the plug rod 7. By moving the moving block 10 along the track post 8, the positioning rod 11 is inserted into the reducer housing 1. The housing 1 is inserted into and connected to the insertion rod 7, allowing the positioning rod 11 to position the insertion rod 7, thereby further improving the stability of the sealing plate 6 and the insertion rod 7 on the reducer housing 1. Simultaneously, with the help of the spring 9, the resistance to the retraction of the moving block 10 is increased, thus improving the stability of the connection between the positioning rod 11 and the insertion rod 7. Fixed blocks 12 are fixed to some surfaces of the moving block 10, and movable handles 13 are inserted into the fixed blocks 12. One end of the movable handle 13 engages with the surface of the reducer housing 1. By engaging the movable handle 13 with the reducer housing 1, the moving block 10 is positioned. When it is necessary to separate the two reducer housings 1 to replace the small gear 2 and large gear 3 installed inside, the movable handle is pulled. Step 13 moves the moving block 10, positioning rod 11, and fixed block 12 along the track column 8 away from the sealing plate 6, causing the positioning rod 11 to disengage from the insertion rod 7, thereby releasing the positioning of the sealing plate 6 and the insertion rod 7 on the side of the reducer housing 1. During this process, the moving spring 9 of the moving block 10 is compressed and contracts. Then, when one end of the movable handle 13 is aligned with the circular groove on the reducer housing 1 during the pulling movement, the movable handle 13 is pushed into the circular groove, causing it to engage with the reducer housing 1, positioning the moving block 10 and preventing it from moving back to its original position due to the spring 9's rebound. This facilitates the removal of the sealing plate 6 and the insertion rod 7 from the reducer housing 1. Afterward, the sealing plate 6 and the insertion rod 7 are moved outward.The insertion rod 7 disengages from the two reducer housings 1, releasing their locking mechanism and allowing for subsequent separation. Once the two reducer housings 1 are separated, the pinion 2 and gear 3 can be easily and quickly removed for replacement.

[0020] Example 2

[0021] like Figure 1-3 As shown, a limiting plate 14 is fixedly connected to the surface of the movable handle 13. The limiting plate 14 limits the movement of the movable handle 13 at the fixed block 12, effectively preventing the movable handle 13 from detaching from the fixed block 12. Connecting rods 15 are fixedly connected to both ends of the moving block 10. With the help of the connecting rods 15, the two moving blocks 10 on the front and rear sides of the reducer housing 1 are connected together, allowing them to move simultaneously. This further accelerates the rate at which the positioning rod 11 releases the positioning of the insertion rod 7. Pull holes 16 are provided on the side surface of the sealing disc 6. The pull holes 16 provide a snap-on point for the side of the sealing disc 6. By inserting a finger into the pull holes 16 and pulling outward, the sealing disc 6 can be moved outward so that the sealing disc 6 and the insert rod 7 can be disassembled from the reducer housing 1. Each of the four corners of one of the reducer housings 1 is fixed with a locking post 17, and the locking post 17 engages with the other reducer housing 1. The locking post 17 facilitates the accurate docking and assembly of the two reducer housings 1.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick-change structure for a speed reducer gear, comprising a speed reducer housing (1), characterized in that: The reducer housing (1) has two units assembled vertically. A small gear (2) and a large gear (3) are installed in the groove inside the reducer housing (1). The small gear (2) and the large gear (3) mesh with each other. A rotating shaft (4) is interference-fitted to the center of both the small gear (2) and the large gear (3). A bearing (5) is interference-fitted to the front and rear sides of the rotating shaft (4) on both sides of the small gear (2). The bearing (5) is transitionally connected to the arc-shaped notch of the reducer housing (1). A sealing plate (6) is inserted through the notch after the two reducer housings (1) are assembled. One end of the rotating shaft (4) is connected to the sealing plate (6) through it. One side of the sealing plate (6) is connected to the sealing plate (6). A rod (7) is fixed to the surface of the reducer housing (1). The rod (7) engages with the reducer housing (1). Track columns (8) are fixed to the front and rear sides of the reducer housing (1). A spring (9) is sleeved on the outer surface of the track column (8). A moving block (10) slides through the track column (8). A positioning rod (11) is fixedly connected to one side of the moving block (10). The positioning rod (11) passes through the reducer housing (1) and is inserted into the rod (7). Fixed blocks (12) are fixed to some surfaces of the moving block (10). A movable handle (13) is inserted through the fixed block (12). One end of the movable handle (13) engages with the surface of the reducer housing (1).

2. The quick-change structure for a reducer gear according to claim 1, characterized in that: A limiting disk (14) is fixedly connected to the surface of the movable handle (13).

3. The quick-change structure for a reducer gear according to claim 1, characterized in that: Connecting rods (15) are fixedly connected to both ends of the movable block (10).

4. The quick-change structure for a reducer gear according to claim 1, characterized in that: Pull holes (16) are provided on the side surface of the sealing plate (6).

5. The quick-change structure for a reducer gear according to claim 1, characterized in that: Each of the four corners of one of the reducer housings (1) is fixed with a locking post (17), and the locking post (17) is engaged with the other reducer housing (1).

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