CN219366729U

CN219366729U - Central locking gear blank

Info

Publication number: CN219366729U
Application number: CN202223544969.4U
Authority: CN
Inventors: 杨顺林
Original assignee: Taizhou Shunpeng Precision Forging Co ltd
Current assignee: Taizhou Shunpeng Precision Forging Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-18
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a central locking gear blank, which comprises a gear body, wherein a shaft hole is formed in the middle of the gear body, a plurality of inclined block holes are formed in the end part of the gear body, the inclined block holes are uniformly distributed along the circumferential direction of the gear body, inclined jacking blocks are slidably arranged in each inclined block hole, inclined jacking blocks extend into inclined block holes, inclined planes I are arranged at the end parts of the inclined jacking blocks, one sides of the inclined planes I face the shaft hole, chuck holes communicated with the inclined block holes one by one are formed in the inner hole wall of the shaft hole, chuck mounting heads are slidably arranged in each chuck hole, inclined planes II are arranged at the end parts of the chuck far away from the shaft hole and are attached to the inclined planes I, a diagonal pushing structure is formed by the cooperation of the inclined jacking blocks and the chuck mounting heads, a locking assembly is arranged at the end part of the gear body, and is used for driving the inclined jacking blocks to slide in the inclined block holes, and the locking assembly pushes the inclined jacking blocks to change the size of the shaft holes, so that the gear is suitable for more transmission shafts, the stock quantity of the gear is reduced, and the cost is reduced.

Description

Central locking gear blank

Technical Field

The utility model relates to a mechanical transmission part, in particular to a central locking gear blank.

Background

Gears and gear products thereof are important basic components of mechanical equipment, and the main transmission components of most mechanical complete equipment are gear transmission. Gears are intermeshing toothed mechanical parts which find extremely wide application in mechanical transmissions and in the entire mechanical field.

At present, chinese patent with publication number CN206904185U discloses a core-changing gear, which comprises a body, a connecting sleeve and a screw, wherein a connecting hole is formed in the middle of the body, a plurality of fixed screw holes are uniformly distributed on the periphery of the connecting hole, a plurality of key grooves are uniformly distributed on the inner wall of the connecting hole, a connecting shaft is arranged on the connecting sleeve, a plurality of key teeth are uniformly distributed outside the connecting shaft, the key teeth are matched with the key grooves, the screw is matched and fixed with the screw holes, and the body satisfies transmission shafts of different sizes by replacing different connecting sleeves.

The patent still has the defect that connecting sleeves with different sizes are required to be manufactured when the transmission shafts with small size differences are processed, so that the cost is increased.

Disclosure of Invention

In view of the above, the present utility model is to provide a central locking gear blank, which has an adjustable shaft hole and is suitable for rotating shafts with different sizes.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a center locking gear embryo, includes the gear body, the shaft hole has been seted up in the middle of the gear body, a plurality of sloping block holes have been seted up to the tip of gear body, and a plurality of sloping block holes are followed the circumference evenly distributed of gear body, each all slide in the sloping block hole and be provided with the sloping roof block, the sloping roof block stretches into the tip in sloping block hole is provided with inclined plane one, inclined plane one orientation shaft hole one side, the interior hole wall department in shaft hole seted up with the chuck hole of sloping block hole one-to-one, each all slide in the chuck hole and be provided with the dress chuck, the chuck is kept away from be provided with inclined plane two on the tip in shaft hole, inclined plane two with the laminating mutually in inclined plane one, the tip in sloping block hole has been seted up to the gear body is provided with locking component, locking component is used for driving the sloping roof block in slide in the sloping block hole.

Through above-mentioned technical scheme, through the cooperation of oblique kicking block with dress chuck, form a structure of pushing away to one side, promote oblique kicking block through locking component and change the size of axle hole, make the gear be applicable to more transmission shafts, reduce the stock quantity of gear, reduce cost.

Preferably, the locking assembly comprises a fixed disc, a step hole is formed in the end portion, close to the gear body, of the fixed disc, an inner thread is arranged at the inner hole wall of the step hole, a plurality of inclined jacking blocks are all contained in the step hole, an outer thread is arranged at the side wall of each inclined jacking block, and the outer thread is screwed and fixed with the inner thread.

Through the technical means, the fixed disc is in threaded connection with the inclined jacking block, so that when the fixed disc rotates, the inclined jacking block moves linearly to push the inclined jacking block to drive the clamping head to clamp the transmission shaft.

Preferably, the end face of the fixed disc is provided with a fixed hole, a locking block is connected in the fixed hole in a threaded manner, and the locking block is abutted against the gear body.

Through the technical means, the fixed disc cannot rotate in the gear movement process through the threaded connection of the locking block and the fixed hole, so that the transmission shaft is locked.

Preferably, the locking block comprises a lock head and a lock column, one end of the lock column is fixedly connected with the lock head, and the other end of the lock column is provided with a rubber block.

Through above-mentioned technical means, through the rubber piece on the lock post, make latch segment and fixed orifices be difficult for not hard up in the gear motion in-process to guarantee that the fixed disk can not gyration, and can reduce the wearing and tearing of latch segment and gear body through the rubber piece.

Preferably, the end part of the gear body provided with the chuck hole is provided with a connecting ring, a limit ring groove is formed in the inner wall of the connecting ring, an installation groove is formed in the outer side of the fixed disc, a first spring and a limit sliding block are sequentially arranged in the installation groove, and the first spring pushes the limit sliding block into the limit ring groove through elasticity.

Through the technical means, the limiting sliding blocks are arranged in the limiting ring groove and the mounting groove, and the fixing disc is locked on the gear body through the limiting sliding blocks, so that the fixing disc cannot be separated from the gear body and can only be in running fit with the gear body.

Preferably, a top pinhole is arranged on the outer side of the connecting ring, and the top pinhole is communicated with the limiting ring groove.

Through the technical means, the jacking needle hole is used for disassembling the fixed disc, so that the fixed disc can be separated from the gear body, and the parts are convenient to maintain and replace.

Preferably, a positioning groove is formed in the inner hole wall of the chuck hole, a positioning block is arranged on the side wall of the chuck, the positioning block is connected in a sliding mode in the positioning groove, a second spring is arranged in the positioning groove, one end of the second spring is fixedly connected with the inner groove wall of the positioning groove, and the other end of the second spring is fixedly connected with the positioning block.

Through the technical means, the second springs are arranged in the fixed blocks and the inner groove walls, so that the clamping heads can rebound automatically, and the transmission rod replacement is simpler and more convenient.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a schematic side cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of portion A of FIG. 2;

fig. 4 is a schematic cross-sectional view of the gear body.

Reference numerals: 1. a gear body; 2. a shaft hole; 3. a sloping block hole; 31. an inclined top block; 311. an external thread; 32. an inclined plane I; 4. a chuck hole; 41. mounting a chuck; 42. a second inclined plane; 43. a positioning groove; 44. a positioning block; 45. a second spring; 5. a locking assembly; 51. a fixed plate; 511. a step hole; 512. an internal thread; 513. a fixing hole; 514. a mounting groove; 515. a limit sliding block; 516. a first spring; 52. a locking block; 521. a lock head; 522. locking a column; 523. a rubber block; 6. a connecting ring; 61. a limit ring groove; 62. and a top pinhole.

Detailed Description

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

The utility model provides a center locking gear blank, as shown in fig. 1-4, including gear body 1, shaft hole 2 has been seted up in the middle of the gear body 1, a plurality of sloping block holes 3 have been seted up to gear body 1's tip, and a plurality of sloping block holes 3 evenly distributed along gear body 1's circumference, all slide in each sloping block hole 3 and be provided with sloping block 31, sloping block 31 stretches into sloping block hole 3's tip is provided with inclined plane one 32, inclined plane one 32 is towards shaft hole 2 one side, shaft hole 2's hole wall department has seted up chuck hole 4 with sloping block hole 3 one-to-one, all slide in each chuck hole 4 and be provided with clamping head 41, be provided with inclined plane two 42 on the tip that clamping head 41 kept away from shaft hole 2, inclined plane two 42 are laminated with inclined plane one 32 mutually, through the cooperation of sloping block 31 and clamping head 41, form a sloping structure, gear body 1 has been seted up sloping block hole 3's tip and is provided with locking component 5, locking component 5 is used for driving sloping block 31 to slide in sloping block hole 3, it changes the big or small of sloping block 31 to promote sloping block 31 through locking component 5, change the shaft hole 2, make the gear more quantity of stock, the cost is reduced.

The locking assembly 5 comprises a fixed disc 51, a step hole 511 is formed in the end portion, close to the gear body 1, of the fixed disc 51, an inner thread 512 is formed in the inner hole wall of the step hole 511, a plurality of inclined jacking blocks 31 are all contained in the step hole 511, outer threads 311 are arranged on the side wall of the inclined jacking blocks 31, the outer threads 311 are screwed and fixed with the inner threads 512, a knurling process is needed on the outer side of the fixed disc 51, slipping is not easy to occur in the process of screwing the fixed disc 51, the fixed disc 51 is connected with the inclined jacking blocks 31 through threads, when the fixed disc 51 rotates, the inclined jacking blocks 31 move linearly, when the fixed disc 51 rotates positively, the threads push the inclined jacking blocks 31 to drive the clamping heads 41 to clamp the transmission shafts, and when the fixed disc 51 rotates reversely, the threads pull the inclined jacking blocks 31 to drive the clamping heads 41 to loosen the transmission shafts.

The fixed disk 51 terminal surface is equipped with fixed orifices 513, and threaded connection has latch segment 52 in the fixed orifices 513, and latch segment 52 offsets tightly with gear body 1, through threaded connection of latch segment 52 and fixed orifices 513, makes fixed disk 51 unable gyration in the gear motion process to the locking transmission shaft.

Preferably, the locking block 52 comprises a lock 521 and a lock column 522, one end of the lock column 522 is fixedly connected with the lock 521, and the lock 521 is hexagonal and is convenient to screw; the other end of the lock post 522 is provided with a rubber block 523, and the locking block 52 and the fixing hole 513 are not easy to loosen in the gear movement process through the rubber block 523 on the lock post 522, so that the fixed disc 51 is ensured not to rotate, and the abrasion of the locking block 52 and the gear body 1 can be reduced through the rubber block 523.

The end part of the gear body 1 provided with the chuck hole 4 is provided with a connecting ring 6, the inner wall of the connecting ring 6 is provided with a limit ring groove 61, the outer side of the fixed disk 51 is provided with a mounting groove 514, a first spring 516 and a first limit slider 515 are sequentially arranged in the mounting groove 514, the first spring 516 pushes the first limit slider 515 into the limit ring groove 61 through elasticity, the fixed disk 51 is locked on the gear body 1 through the first limit slider 515, the first limit slider 515 and the first spring 516 are pressed into the mounting groove 514 in the process of mounting the fixed disk 51, when the fixed disk 51 is mounted in place, the first limit slider 515 is clamped into the limit ring groove 61 through the elasticity of the first spring 516, and a part of the first limit slider is still remained in the mounting groove 514, so that the first limit slider 515 cannot be separated from the gear body 1 and can only be in running fit.

The ejector pin hole 62 has been seted up in the go-between 6 outsides, and ejector pin hole 62 communicates with each other with spacing annular 61, and ejector pin hole 62 is used for dismantling fixed disk 51, when needs dismantlement fixed disk 51, rotates corresponding position with fixed disk 51, stretches into the ejector pin from ejector pin hole 62, presses down spacing slider 515, and fixed disk 51 can break away from gear body 1, convenient maintenance and replacement part.

The locating groove 43 is formed in the inner hole wall of the chuck hole 4, the locating block 44 is arranged on the side wall of the clamping head 41, the locating block 44 is slidably connected in the locating groove 43, the second spring 45 is arranged in the locating groove 43, one end of the second spring 45 is fixedly connected with the inner groove wall of the locating groove 43, the other end of the second spring 45 is fixedly connected with the locating block 44, and the second spring 45 is arranged in the fixing block and the inner groove wall, so that the clamping head 41 can automatically rebound, and the replacement of a transmission rod is simpler and more convenient.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. The utility model provides a center locking gear embryo, includes gear body (1), shaft hole (2), characterized by have been seted up in the middle of gear body (1): the gear body (1) is characterized in that a plurality of inclined block holes (3) are formed in the end portion of the gear body (1), the inclined block holes (3) are uniformly distributed along the circumference of the gear body (1), inclined top blocks (31) are arranged in the inclined block holes (3) in a sliding mode, the inclined top blocks (31) extend into the end portions of the inclined block holes (3) and are provided with inclined planes I (32), the inclined planes I (32) face one side of the shaft hole (2), chuck holes (4) which are communicated with the inclined block holes (3) one by one are formed in the inner hole wall of the shaft hole (2), clamping heads (41) are arranged in the chuck holes (4) in a sliding mode, clamping heads (41) are far away from the end portions of the shaft hole (2), inclined planes II (42) are attached to the inclined planes I (32), locking components (5) are arranged at the end portions of the inclined block holes (3) and used for driving the inclined blocks (5) to slide in the inclined block holes (3).

2. The center lock gear blank according to claim 1, wherein: the locking assembly (5) comprises a fixed disc (51), a step hole (511) is formed in the end portion, close to the gear body (1), of the fixed disc (51), an inner thread (512) is arranged at the inner hole wall of the step hole (511), a plurality of inclined jacking blocks (31) are all contained in the step hole (511), an outer thread (311) is arranged at the side wall of each inclined jacking block (31), and the outer thread (311) is screwed and fixed with the inner thread (512).

3. A center lock gear blank according to claim 2, wherein: the end face of the fixed disc (51) is provided with a fixed hole (513), a locking block (52) is connected in the fixed hole (513) in a threaded mode, and the locking block (52) abuts against the gear body (1).

4. A center lock gear blank according to claim 3, wherein: the locking block (52) comprises a lock head (521) and a lock column (522), one end of the lock column (522) is fixedly connected with the lock head (521), and the other end of the lock column (522) is provided with a rubber block (523).

5. A center lock gear blank according to claim 2, wherein: the gear body (1) is provided with a connecting ring (6) at the end part of the chuck hole (4), a limit ring groove (61) is formed in the inner wall of the connecting ring (6), a mounting groove (514) is formed in the outer side of the fixed disc (51), a first spring (516) and a limit sliding block (515) are sequentially arranged in the mounting groove (514), and the first spring (516) pushes the limit sliding block (515) into the limit ring groove (61) through elasticity.

6. The center lock gear blank according to claim 5, wherein: a top pinhole (62) is formed in the outer side of the connecting ring (6), and the top pinhole (62) is communicated with the limiting ring groove (61).

7. The center lock gear blank according to claim 1, wherein: the clamping head is characterized in that a positioning groove (43) is formed in the inner hole wall of the clamping head hole (4), a positioning block (44) is arranged on the side wall of the clamping head (41), the positioning block (44) is connected in a sliding mode in the positioning groove (43), a second spring (45) is arranged in the positioning groove (43), one end of the second spring (45) is fixedly connected with the inner groove wall of the positioning groove (43), and the other end of the second spring (45) is fixedly connected with the positioning block (44).