CN219692182U - Powder metallurgy gear convenient to change - Google Patents

Abstract

The utility model relates to the technical field of gears and discloses a powder metallurgy gear convenient to replace, which comprises a gear main body, wherein the inner wall of the gear main body is movably connected with a fixed shaft, the outer wall of the gear main body is symmetrically provided with limiting grooves, the outer wall of the fixed shaft is fixedly provided with limiting blocks corresponding to the limiting grooves, the outer wall of the fixed shaft is provided with annular grooves, and the tail end of the fixed shaft is provided with a groove. This kind of powder metallurgy gear convenient to change through set up the spacing groove at gear body's outer wall, sets up the stopper at the outer wall of fixed axle, can play spacing effect to gear body, through setting up threaded rod, ring, first U type seat, second U type seat, gag lever post, stock, in the use, through the position of control ring, just can control the height of gag lever post to play spacing effect to gear body's the other end, this design is in the use, and the staff of being convenient for changes gear body.

Description

Powder metallurgy gear convenient to change

Technical Field

The utility model relates to the technical field of gears, in particular to a powder metallurgy gear convenient to replace.

Background

The powder metallurgy gear is a product of a high new technology with less cutting scraps and no cutting scraps, is a powder metallurgy part commonly used in various automobile engines, and can completely meet the requirement of dimensional precision, in particular tooth form precision through one-step forming and finishing processes without other post-treatment processes.

When the existing gear is used for a long time and worn, workers are required to replace the gear in time, but the inner wall of the gear is fixedly connected with the outer wall of the fixed shaft, and the fixed shaft is required to be replaced together in the process of replacing the gear.

Through retrieval, the patent with the Chinese patent grant number of CN215861606U discloses a powder metallurgy gear convenient to replace, gear teeth are arranged around the gear, a shaft hole is arranged in the middle of the gear, one end of the shaft hole is large-caliber, the other end of the shaft hole is small-caliber, and at least two key grooves are formed in the shaft hole.

The powder metallurgy gears in the above patents for replacement have the following problems:

this in powder metallurgy gear of changing, the staff need knock out the little fixed block in the keyway of heavy-calibre department through the hammer when changing the gear, and the big fixed block in the keyway of heavy-calibre department is knocked out again to change the gear, this design staff is in the use, and in the in-process of knocking the keyway, comparatively laborious, can also produce great noise moreover.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a powder metallurgy gear which is convenient to replace.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a powder metallurgy gear convenient to change, includes the gear body, gear body's inner wall swing joint has the fixed axle, gear body's outer wall symmetry has seted up the spacing groove, the outer wall fixed mounting of fixed axle has the stopper that corresponds with the spacing groove, the annular is seted up to the outer wall of fixed axle, the recess has been seted up to the end of fixed axle, a plurality of logical grooves have been seted up to the outer wall symmetry of annular, logical groove runs through annular and recess, the recess inner wall rotates and is connected with the threaded rod, the outer wall threaded connection of threaded rod has the ring, the outer wall of ring has the second U type seat with logical position fixed mounting that the groove corresponds, the outer wall fixed mounting of annular has the first U type seat that corresponds with the second U type seat, the inside rotation of first U type seat is connected with the gag lever post, the other end rotation of gag lever post is connected with the stock, the other end and the inner wall rotation of second U type seat are connected.

Preferably, a rotating handle is fixedly arranged at the tail end of the threaded rod.

Preferably, a plurality of anti-skid grooves are formed in the outer wall of the rotating handle.

Preferably, the outer wall of one end of the fixed shaft provided with the threaded rod is fixedly provided with a cylindrical frame, and the outer wall of the cylindrical frame is provided with a rotary groove.

Preferably, a connecting column is fixedly arranged at the tail end of the cylindrical frame.

Preferably, the limiting block is matched with the limiting groove.

Compared with the prior art, the utility model has the following beneficial effects:

this kind of powder metallurgy gear convenient to change through set up the spacing groove at gear body's outer wall, sets up the stopper at the outer wall of fixed axle, can play spacing effect to gear body, through setting up threaded rod, ring, first U type seat, second U type seat, gag lever post, stock, in the use, through the position of control ring, just can control the height of gag lever post to play spacing effect to gear body's the other end, this design is in the use, and the staff of being convenient for changes gear body.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the outer wall structure of the fixing shaft according to the present utility model;

FIG. 3 is a schematic view of the ring groove structure of the present utility model;

fig. 4 is a schematic view of the structure of the threaded rod of the present utility model.

In the figure: 1. a gear body; 2. a fixed shaft; 3. a limit groove; 4. a limiting block; 5. a cylindrical frame; 6. a connecting column; 7. a threaded rod; 8. a ring groove; 9. a through groove; 10. a groove; 11. a first U-shaped seat; 12. a circular ring; 13. a limit rod; 14. a long rod; 15. a second U-shaped seat; 16. a rotating handle; 17. an anti-skid slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a powder metallurgy gear convenient to replace includes a gear main body 1, a fixed shaft 2 is movably connected to an inner wall of the gear main body 1, a limit groove 3 is symmetrically arranged on an outer wall of the gear main body 1, a limit block 4 corresponding to the limit groove 3 is fixedly arranged on an outer wall of the fixed shaft 2, a ring groove 8 is arranged on an outer wall of the fixed shaft 2, a groove 10 is arranged at an end of the fixed shaft 2, a plurality of through grooves 9 are symmetrically arranged on an outer wall of the ring groove 8, the through grooves 9 penetrate through the ring groove 8 and the groove 10, a threaded rod 7 is rotatably connected to an inner wall of the groove 10, a circular ring 12 is in threaded connection with an outer wall of the threaded rod 7, a first U-shaped seat 11 corresponding to the second U-shaped seat 15 is fixedly arranged on an outer wall of the circular ring 12, a limit rod 13 is rotatably connected to an inner wall of the first U-shaped seat 11, a long rod 14 is rotatably connected to the other end of the limit rod 13, and the other end of the long rod 14 is rotatably connected to an inner wall of the second U-shaped seat 15.

According to the powder metallurgy gear convenient to replace, when a worker needs to replace the gear, the small fixed block in the key groove at the large caliber is knocked out through the hammer, and then the large fixed block in the key groove at the small caliber is knocked out, so that the gear is replaced, the main structure of the powder metallurgy gear convenient to replace is similar to that of the patent No. CN215861606U, when the worker needs to replace the gear main body 1 in use, the worker rotates the threaded rod 7, the ring 12 slides on the outer wall of the threaded rod 7, the distance between the first U-shaped seat 11 and the second U-shaped seat 15 is increased, the length of the limiting rod 13 is reduced, when the limiting rod 13 and the long rod 14 are accommodated in the annular groove 8, the worker can take the gear main body 1 off the fixed shaft 2, the limiting groove 3 is formed in the outer wall of the gear main body 1, the limiting block 4 is arranged on the outer wall of the fixed shaft 2, the worker can play a limiting role in the gear main body 1 in use, and the noise of the worker is not convenient to replace the gear main body 1 in use.

As shown in fig. 4, the rotating handle 16 is fixedly installed at the tail end of the threaded rod 7, and by installing the rotating handle 16 at the tail end of the threaded rod 7, the contact area between the worker and the threaded rod 7 is increased during the use process of the worker, so that the threaded rod 7 can be rotated more conveniently.

As shown in fig. 4, the outer wall of the rotary handle 16 is provided with a plurality of anti-slip grooves 17, and the anti-slip grooves 17 are arranged on the outer wall of the rotary handle 16, so that a worker can increase the friction force between the rotary handle 16 and the fingers of the worker in the use process, and the rotary handle can rotate more easily.

As shown in fig. 2, the outer wall of one end of the fixed shaft 2 provided with the threaded rod 7 is fixedly provided with a cylindrical frame 5, the outer wall of the cylindrical frame 5 is provided with a rotary groove, the threaded rod 7 can be protected by arranging the cylindrical frame 5 on the outer wall of the fixed shaft 2, and the rotary groove is formed in the outer portion of the cylindrical frame 5, so that a worker can conveniently rotate the threaded rod 7.

As shown in fig. 2, the connecting post 6 is fixedly installed at the end of the cylindrical frame 5, and the connecting post 6 is installed at the end of the cylindrical frame 5, so that a worker can conveniently connect the fixing shaft 2 with a rotating shaft to be connected during use.

As shown in fig. 1, the limiting block 4 is matched with the limiting groove 3, and the limiting block 4 and the limiting groove 3 are matched, so that a worker can limit the gear main body 1 more tightly in the use process, and shake can not be generated in the use process.

Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides a powder metallurgy gear convenient to change, includes gear body (1), a serial communication port, gear body (1)'s inner wall swing joint has fixed axle (2), spacing groove (3) have been seted up to gear body (1)'s outer wall symmetry, stopper (4) that correspond with spacing groove (3) are fixedly installed to fixed axle (2)'s outer wall, annular (8) have been seted up to fixed axle (2)'s outer wall, recess (10) have been seted up to fixed axle (2)'s end, a plurality of logical groove (9) have been seted up to annular (8) outer wall symmetry, logical groove (9) run through annular (8) and recess (10), recess (10) inner wall rotation is connected with threaded rod (7), threaded rod's (7) outer wall threaded connection has ring (12), the outer wall and logical groove (9) corresponding position fixed mounting of ring (12) have second U type seat (15), the outer wall fixed mounting of annular (8) has first U type seat (11) that correspond with second U type seat (15), the inside rotation of first U type seat (11) has the peg (13) rotation limit lever (13), the other end of the long rod (14) is rotationally connected with the inner wall of the second U-shaped seat (15).

2. A powder metallurgical gear for easy replacement according to claim 1, characterized in that the threaded rod (7) is fixedly mounted with a stem (16) at its end.

3. A powder metallurgical gear for easy replacement according to claim 2, characterized in that the outer wall of the stem (16) is provided with a plurality of anti-slip grooves (17).

4. The powder metallurgy gear convenient to replace according to claim 1, wherein a cylindrical frame (5) is fixedly arranged on the outer wall of one end of the fixed shaft (2) provided with a threaded rod (7), and a rotary groove is formed in the outer wall of the cylindrical frame (5).

5. A powder metallurgical gear for easy replacement according to claim 4, characterized in that the end of the cylindrical frame (5) is fixedly fitted with a connecting post (6).

6. A powder metallurgy gear facilitating replacement according to claim 1, characterized in that the limit block (4) is arranged in a matching manner with the limit groove (3).