CN221135057U

CN221135057U - Pneumatic rotating device

Info

Publication number: CN221135057U
Application number: CN202323059603.2U
Authority: CN
Inventors: 宋殿亮; 马付海; 李安凯; 魏泽城; 王秀平; 张彭; 王仁辉; 何明辉
Original assignee: Qingdao Zichai Boyang Diesel Engine Co ltd
Current assignee: Qingdao Zichai Boyang Diesel Engine Co ltd
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-06-14
Anticipated expiration: 2033-11-13

Abstract

A pneumatic rotating device relates to the technical field of workpiece machining and solves the problems that in the prior art, a crankshaft is required to be manually rotated for adjusting an angle during machining, time and labor are wasted, and the force is uneven. The utility model provides a pneumatic rotary device, includes rotating device and with the clamping device that rotating device set up relatively, rotating device includes first base, be provided with air motor on the first base, air motor is connected with first reduction gear, first reduction gear is connected with the second reduction gear, the one end of second reduction gear with the axle sleeve bottom passes through third bolt fixed connection, the upper end of axle sleeve is the opening setting, the tip of axle sleeve is provided with the flange, the flange of axle sleeve is connected with the flange end of bent axle through first bolt. The beneficial effects are that: the automatic rotation of the crankshaft is realized, repeated labor is avoided, and multi-surface processing is facilitated.

Description

Pneumatic rotating device

Technical Field

The utility model relates to the technical field of workpiece processing, in particular to a pneumatic rotating device.

Background

In the crankshaft machining process, a fixture is required to fix the crankshaft, and then machining such as key grooves, pin holes and the like is performed. During production, quantitative or qualitative control of the angle of rotation of the crankshaft is often required. Or the crankshaft needs to be processed on a plurality of surfaces during processing, and besides the position of a processing device, the position of the crankshaft can be adjusted. The existing crankshaft rotating device is usually carried out manually, namely, the crankshaft is rotated by using manpower through a tool. However, the rotating mechanism has low transmission efficiency, the crankshaft is required to be manually rotated to adjust the angle during crankshaft machining, the time and the labor are wasted, the problem of uneven force is caused by manual operation, the shaft diameter is easy to scratch and the personnel are easy to sprain, the precision control is difficult, and the use requirement cannot be met.

Accordingly, the present utility model proposes a pneumatic rotary device for solving the above-mentioned problems.

Disclosure of utility model

The utility model aims to provide a pneumatic rotating device which is used for solving the problems that in the prior art, a crankshaft is required to be manually rotated to adjust an angle during processing, time and labor are wasted and the force is uneven.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a pneumatic rotary device, includes rotating device and with the clamping device that rotating device set up relatively, rotating device includes first base, be provided with air motor on the first base, air motor is connected with first reduction gear, first reduction gear is connected with the second reduction gear, the one end of second reduction gear with the axle sleeve bottom passes through third bolt fixed connection, the upper end of axle sleeve is the opening setting, the tip of axle sleeve is provided with the flange, the flange of axle sleeve is connected with the flange end of bent axle through first bolt.

By adopting the technical scheme, the clockwise/anticlockwise automatic rotation of the crankshaft can be realized in a pneumatic mode, the operation is flexible, convenient and reliable, the working efficiency is greatly improved, the efficient and stable power transmission is ensured, the service life is prolonged, and the safety production is ensured.

Further, the clamping device comprises a second base, a positioning block is arranged on the second base, and a three-jaw chuck is rotationally connected to the positioning block.

Through adopting above-mentioned technical scheme, can carry out the joint through the three-jaw chuck to the other end of bent axle and fix, guaranteed the balanced atress of bent axle.

Further, the three-jaw chuck is rotatably connected to the positioning block through a bearing.

By adopting the technical scheme, the friction coefficient in the rotation process of the three-jaw chuck is reduced, and the rotation precision of the three-jaw chuck is ensured.

Further, a protection pad is arranged between the three-jaw chuck and the crankshaft, and the protection pad is arranged on the three-jaw chuck.

By adopting the technical scheme, the integrity of the crankshaft can be protected, and the abrasion of the crankshaft is avoided.

Further, a first waist-shaped groove is formed in the first base and is connected with the pneumatic motor through a first connecting piece; the second base is provided with a second waist-shaped groove, and the second waist-shaped groove is connected with the positioning block through a second connecting piece.

By adopting the technical scheme, the position of the pneumatic motor can be moved through the first waist-shaped groove, so that the position of the shaft sleeve is finely adjusted; the position of the positioning block can be moved through the second waist-shaped groove; the integral installation of the crankshaft is facilitated.

Further, the first speed reducer and the second speed reducer are connected through a plum coupling.

By adopting the technical scheme, the method can be used.

Further, a gasket is arranged in the shaft sleeve.

By adopting the technical scheme, the abrasion to the crankshaft in the processing process can be reduced.

Further, an end cover is arranged at the upper end of the shaft sleeve and is clamped with the end part of the crankshaft, and the end cover is fixedly connected with the shaft sleeve through a second bolt.

Through adopting above-mentioned technical scheme, can realize dynamic balance, be applicable to high rotational speed simultaneously, and rectify the ability reinforce, guaranteed rotatory stability.

In summary, compared with the prior art, the utility model has the beneficial effects that:

1. The pneumatic motor is matched with the motion of the speed reducer, so that the pneumatic motor is more beneficial to operation and adjustment, reduces repeated labor of operators, is more beneficial to multi-surface processing due to forward and reverse rotation design, saves processing time, simultaneously rotates at a constant speed, avoids workpiece scratch, and has strong practicability.

2. The utility model realizes the clockwise/anticlockwise automatic rotation of the crankshaft by adopting a pneumatic mode, has flexible, convenient and reliable operation, greatly improves the working efficiency, ensures the efficient and stable power transmission, prolongs the service life and ensures the safe production.

Drawings

FIG. 1 is an axial schematic view of an overall structure of a pneumatic rotary device according to the present embodiment;

FIG. 2 is a schematic view of the working state of the rotating device of the present utility model;

FIG. 3 is a schematic view illustrating an operation state of the clamping device according to the present utility model;

FIG. 4 is a schematic axial view of a pneumatic rotary device according to a second embodiment;

FIG. 5 is an enlarged partial schematic view of portion A of FIG. 4;

In the figure: 1. a first base; 2. a pneumatic motor; 3. a first decelerator; 4. a second decelerator; 5. plum blossom shaft coupling; 6. a third bolt; 7. a shaft sleeve; 8. a gasket; 9. a flange; 10. a first bolt; 11. a crankshaft; 12. a second base; 13. a positioning block; 14. a three-jaw chuck; 15. a bearing; 16. a protective pad; 17. a first waist-shaped groove; 18. a first connector; 19. a second waist-shaped groove; 20. a second connector; 21. an end cap; 22. and a second bolt.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.

In the present application, the azimuth or positional relationship indicated by the terms "upper", "inner", "outer", "middle", and the like are based on the azimuth or positional relationship shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

As shown in fig. 1 and 2, a pneumatic rotating device comprises a rotating device and a clamping device which is opposite to the rotating device, wherein the rotating device comprises a first base 1, a pneumatic motor 2 is connected with a first speed reducer 3, the first speed reducer 3 and a second speed reducer 4 are connected through a plum blossom shaft coupling 5, and then the plum blossom shaft coupling 5 can realize dynamic balance, and meanwhile, the pneumatic rotating device is suitable for high rotating speed, has strong deviation rectifying capability and ensures rotating stability. One end of the second reducer 4 is fixedly connected with the bottom of the shaft sleeve 7 through a bolt, wherein a first waist-shaped groove 17 is arranged on the first base 1, and the first waist-shaped groove 17 is connected with the pneumatic motor 2 through a first connecting piece 18. And then can remove the position of air motor 2 through first waist type groove 17 to finely tune the position of axle sleeve 7, the whole installation of bent axle 11 of being convenient for has further promoted the practicality.

As shown in fig. 2, the upper end of the sleeve 7 is provided with an opening, the end of the sleeve 7 is provided with a flange 9, and the flange 9 of the sleeve 7 is connected with the flange 9 end of the crankshaft 11 through a first bolt 10. The gasket 8 is arranged in the shaft sleeve 7, so that abrasion to the crankshaft 11 in the machining process is reduced. And then putting the crankshaft 11 into an opening of the shaft sleeve 7, fixing the flange 9 of the crankshaft 11 on the flange 9 of the shaft sleeve 7, enabling compressed air to enter from the forward rotation air inlet to start the air motor 2, and enabling the air motor 2 to drive the main shaft of the first speed reducer 3 to perform clockwise/anticlockwise rotation, and driving the second speed reducer 4 connected with the plum coupling 5 to perform clockwise/anticlockwise rotation, so as to drive the shaft sleeve 7 connected with the second speed reducer 4 to perform rotation, and realizing the clockwise/anticlockwise automatic rotation of the crankshaft 11. The clockwise/anticlockwise automatic rotation of the crankshaft 11 is realized in a pneumatic mode, the operation is flexible, convenient and reliable, the working efficiency is greatly improved, the efficient and stable power transmission is ensured, the service life is prolonged, and the safety production is ensured. The pneumatic motor 2 is matched with the design of the speed reducer, so that the operation and adjustment are facilitated, the repeated labor of operators is reduced, the forward and reverse rotation design is facilitated, the processing time is saved, the workpiece is prevented from being scratched by uniform rotation, and the pneumatic motor has strong practicability.

As shown in fig. 3, the clamping device includes a second base 12, a second waist-shaped groove 19 is disposed on the second base 12, and the second waist-shaped groove 19 is connected with the positioning block 13 through a second connecting piece 20. Further, the position of the positioning block 13 can be moved through the second waist-shaped groove 19, so that the whole installation of the crankshaft 11 is facilitated. The positioning block 13 is rotatably connected with a three-jaw chuck 14. The three-jaw chuck 14 is rotatably connected to the positioning block 13 through a bearing 15. The other end of the crankshaft 11 can be clamped and fixed through the three-jaw chuck 14, so that the stress balance of the crankshaft 11 is ensured; the protection pad 16 is arranged between the three-jaw chuck 14 and the crankshaft 11, the protection pad 16 is arranged on the three-jaw chuck 14, the integrity of the crankshaft 11 can be protected, abrasion of the crankshaft 11 is avoided, when the crankshaft 11 rotates, the three-jaw chuck 14 rotates on the positioning block 13 through the bearing 15, the friction coefficient of the three-jaw chuck 14 in the rotation process is reduced, and the rotation precision of the three-jaw chuck 14 is guaranteed.

The implementation principle of the pneumatic rotating device provided by the embodiment of the application is as follows:

Firstly, putting a crankshaft 11 into an opening of a shaft sleeve 7, fixing a flange 9 of the crankshaft 11 on the flange 9 of the shaft sleeve 7, further moving a positioning block 13, and clamping and fixing the other end of the crankshaft 11 through a three-jaw chuck 14, so that the stress balance of the crankshaft 11 is ensured; and compressed air enters the starting pneumatic motor 2 from the forward rotation air inlet, the pneumatic motor 2 drives the main shaft of the first speed reducer 3 to perform rotary motion, and then the first speed reducer 3 drives the second speed reducer 4 connected with the plum coupling 5 to perform rotary motion, so that the shaft sleeve 7 connected with the second speed reducer 4 is driven to perform rotary motion to realize automatic rotation of the crankshaft 11. At the same time, when the crankshaft 11 rotates, the three-jaw chuck 14 rotates on the positioning block 13 through the bearing 15. And then the crankshaft 11 can be subjected to multi-surface machining, so that the machining time is saved, and the workpiece is prevented from being scratched by uniform rotation.

Embodiment two:

As shown in fig. 4 and fig. 5, the difference between the present embodiment and the first embodiment is that, further, an end cover 21 is provided at the upper end of the sleeve 7, the end cover 21 is clamped with the end of the crankshaft 11, and the end cover 21 is fixedly connected with the sleeve 7 through a second bolt 22. Meanwhile, the flange 9 of the shaft sleeve 7 is connected with the flange 9 end of the crankshaft 11 through the first bolt 10, so that the shaft sleeve 7 is convenient to replace, and the degree of freedom of the whole device is increased.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides a pneumatic rotary device, includes rotating device and with the clamping device that rotating device set up relatively, characterized by, rotating device includes first base (1), be provided with pneumatic motor (2) on first base (1), pneumatic motor (2) are connected with first reduction gear (3), first reduction gear (3) are connected with second reduction gear (4), the one end of second reduction gear (4) is connected with axle sleeve (7), axle sleeve (7) bottom through third bolt (6) with second reduction gear (4) fixed connection, the upper end of axle sleeve (7) is the opening setting, the tip of axle sleeve (7) is provided with flange (9), flange (9) of axle sleeve (7) are connected with flange (9) end of bent axle (11) through first bolt (10).

2. A pneumatic rotation device according to claim 1, characterized in that the clamping device comprises a second base (12), a positioning block (13) is arranged on the second base (12), and a three-jaw chuck (14) is rotatably connected to the positioning block (13).

3. A pneumatic rotation device according to claim 2, characterized in that the three-jaw chuck (14) is rotatably connected to the positioning block (13) by means of bearings (15).

4. A pneumatic rotary device according to claim 3, characterized in that a protective pad (16) is provided between the three-jaw chuck (14) and the crankshaft (11), the protective pad (16) being provided on the three-jaw chuck (14).

5. A pneumatic rotation device according to claim 4, characterized in that the first base (1) is provided with a first waist-shaped groove (17), the first waist-shaped groove (17) being connected with the pneumatic motor (2) by a first connection piece (18); the second base (12) is provided with a second waist-shaped groove (19), and the second waist-shaped groove (19) is connected with the positioning block (13) through a second connecting piece (20).

6. A pneumatic rotation device according to claim 1, characterized in that the first (3) and second (4) decelerator are connected by means of a quincuncial coupling (5).

7. A pneumatic rotation device according to claim 1, characterized in that a spacer (8) is provided in the sleeve (7).

8. A pneumatic rotary device according to claim 1, characterized in that the upper end of the sleeve (7) is provided with an end cap (21), the end cap (21) is clamped with the end of the crankshaft (11), and the end cap (21) is fixedly connected with the sleeve (7) through a second bolt (22).