Reducing shaft sleeve of inflatable shaft

Abstract

According to the technical scheme, the variable-diameter shaft sleeve comprises a shaft sleeve body and connecting frames, the connecting frames are installed in the middles of the two sides of the shaft sleeve body, reset grooves are formed in the positions, located on the connecting frames, of the interior of the shaft sleeve body, and reset springs are installed in the middles, located on one sides of the connecting frames, of the interior of the reset grooves through spring seats. A bearing groove is formed in the outer surface of the shaft sleeve, a bearing frame is installed in the bearing groove, a positioning bearing is installed in the bearing frame through a pin shaft, a positioning pin is installed in the bearing groove, a positioning groove is formed in the position, located at the positioning pin, of one side of the bearing frame, and clamping devices are movably installed on the two sides of the interior of the bearing groove. The variable-diameter shaft sleeve of the air expansion shaft solves the problems that a reset mechanism of an existing variable-diameter sleeve of the air expansion shaft is too complex and prone to being damaged in the using process, so that the variable-diameter sleeve cannot be reset normally, and normal use of the variable-diameter sleeve is affected, the damage probability of the variable-diameter sleeve of the air expansion shaft is reduced, and therefore normal use of the air expansion shaft is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas expansion shaft use, concretely is a gas expansion shaft variable diameter shaft sleeve. BACKGROUND

[0002] The gas expansion shaft is a kind of transmission device widely used in industrial field, its design is unique, and function is various.This device realizes diameter adjustment by controlling internal air pressure, to realize the purpose of torque transmission and motion control.The design of gas expansion shaft is simple and effective, and it is commonly used in various mechanical equipment, such as printing machinery, packaging equipment and textile machinery etc.Its advantages include smooth transmission, simple maintenance, strong adaptability and energy saving etc.Through using gas expansion shaft, industrial production process can realize more efficient production operation, improve production efficiency and equipment stability.In many industrial occasions, gas expansion shaft has become an indispensable key component, provides reliable solution for various transmission needs, when using gas expansion shaft, variable diameter shaft sleeve is needed.

[0003] The reset mechanism of the existing gas expansion shaft variable diameter sleeve is too complex, is easily damaged in the use process, causes variable diameter sleeve to be unable to normally reset, influences the normal use of variable diameter sleeve, for this purpose, a gas expansion shaft variable diameter sleeve is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of gas expansion shaft variable diameter sleeve, with the effect of simple structure, low failure probability, to solve the reset mechanism of the existing gas expansion shaft variable diameter sleeve is too complex, is easily damaged in the use process, causes variable diameter sleeve to be unable to normally reset, influences the normal use of variable diameter sleeve problem.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of gas expansion shaft variable diameter sleeve, including shaft sleeve and connecting frame, wherein the connecting frame is installed at the middle position of the two sides of the shaft sleeve, the reset slot is arranged at the position of the connecting frame inside the shaft sleeve, the reset spring is installed in the reset slot inside the connecting frame side by spring seat, the bearing groove is arranged on the outer surface of the shaft sleeve, the bearing bracket is installed in the bearing groove, and the positioning bearing is installed in the bearing bracket by pin shaft.

[0006] Preferably, the positioning pin is installed in the bearing groove, the positioning groove is arranged on the side of the bearing bracket at the position of the positioning pin, and the positioning pin is clamped in the positioning groove.

[0007] Preferably, the clamping device is movably installed in the bearing groove on both sides, the clamping groove is arranged on the bearing bracket at the position of the clamping device, and the clamping device is clamped in the clamping groove.

[0008] Preferably, the shaft sleeve is provided with a connecting seat in the middle of one side, the inside of the connecting seat is provided with a turnover frame through a locker, and the end of the turnover frame is provided with a magnet.

[0009] Preferably, the turnover frame is provided with a wrench in the middle of one side.

[0010] Preferably, the shaft sleeve is provided with two, and the two shaft sleeves are connected through a connecting frame.

[0011] Preferably, the connecting seat is provided with two, and the two connecting seats are separately arranged at the middle positions of the two shaft sleeves.

[0012] Preferably, the locating bearing is provided with thirty, and the thirty locating bearings are equally divided into six groups, and the six groups of locating bearings are equally and separately arranged at the outer surface positions of the two shaft sleeves.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a simple structure and low failure rate, and solves the problems of the existing air expansion shaft variable diameter sleeve, such as complex reset mechanism, easy damage in use, normal reset failure of the variable diameter sleeve and normal use influence of the variable diameter sleeve, reduces the damage rate of the air expansion shaft variable diameter sleeve, and guarantees the normal use of the air expansion shaft.

[0015] 2. The utility model discloses a connecting seat, a turnover frame, a locker and a magnet, and has the effects of limiting and fixing the shaft sleeve, and solves the problems of the existing shaft sleeve, such as easy sliding in use, falling off, normal use influence and falling off rate reduction, and guarantees the normal use of the shaft sleeve.

[0016] 3. The utility model discloses a clamping device, a bearing frame, a locating bearing and a clamping groove, and has the effects of convenient and quick dismounting and replacing the locating bearing, and solves the problems of the existing locating bearing, such as damage, much time consumption in dismounting and replacing the locating bearing, maintenance time increase of the shaft sleeve, normal use influence and maintenance efficiency improvement of the locating bearing, and guarantees the normal use of the shaft sleeve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of section A;

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of B;

[0021] Figure 5 for Figure 3 A schematic diagram of the enlarged structure of C;

[0022] Figure 6 This is a partial front view schematic diagram of the bushing and bearing bracket of this utility model.

[0023] Reference numerals: 1. Bushing; 2. Bearing groove; 3. Positioning bearing; 4. Magnet; 5. Tilting frame; 6. Locking device; 7. Wrench; 8. Connecting seat; 9. Connecting frame; 10. Reset groove; 11. Reset spring; 12. Positioning pin; 13. Pin shaft; 14. Positioning groove; 15. Bearing frame; 16. Clamping device; 17. Clamping groove. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figures 1-5 As shown, to achieve the above objectives, this utility model provides the following technical solution: a variable diameter air shaft bushing, including a bushing 1 and a connecting frame 9. The connecting frame 9 is installed at the middle position on both sides of the bushing 1. There are two bushings 1, and the two bushings 1 are connected by the connecting frame 9. A reset groove 10 is provided inside the bushing 1 at the position of the connecting frame 9. A reset spring 11 is installed inside the reset groove 10 at the middle position on one side of the connecting frame 9 through a spring seat. By setting the reset spring 11, the bushing 1 is squeezed, thereby driving the bushing 1 to reset. A bearing groove 2 is provided on the outer surface of the bushing 1. A bearing frame 15 is installed inside the bearing groove 2. A positioning bearing 3 is installed inside the bearing frame 15 through a pin 13. There are thirty positioning bearings 3 in total, and the thirty positioning bearings 3 are equally divided into six groups. The six groups of positioning bearings 3 are equidistantly distributed at the positions on the outer surface of the bushings 1 on both sides.

[0027] like Figure 3 , Figure 5 andFigure 6 As shown, a positioning pin 12 is installed inside the bearing groove 2. A positioning groove 14 is provided on one side of the bearing bracket 15 at the position of the positioning pin 12. The positioning pin 12 is locked inside the positioning groove 14. The positioning pin 12 and the positioning groove 14 limit and fix the bearing bracket 15. Clamping devices 16 are movably installed on both sides inside the bearing groove 2. A clamping groove 17 is provided on the bearing bracket 15 at the position of the clamping device 16. The clamping device 16 is locked inside the clamping groove 17. The bearing bracket 15 is quickly clamped by the clamping device 16 and the clamping groove 17.

[0028] The working principle of the air shaft variable diameter bushing based on Embodiment 1 is as follows: After the present invention is installed, the bushing 1 is clamped onto the outer surface of the air shaft, and then the present invention is fixed by the flipping frame 5 and the magnet 4. In use, the take-up tube is sleeved on the outer surface of the bushing 1. During use, the air shaft squeezes the bushing 1, causing the bushings 1 on both sides to separate. The take-up tube is fixed by the positioning bearing 3, and then the take-up tube can be used. After the take-up is completed, the air shaft retracts, releasing the restriction on the bushing 1. The return spring 11 then pulls the bushing 1 back into place. The two bushings 1 are reset, thereby releasing the restriction on the take-up tube, which can then be replaced. When the positioning bearing 3 is damaged, the bushing 1 is removed, and the clamp 16 is rotated with a tool to overlap with the clamping groove 17. After completion, the bearing bracket 15 can be removed, and the new bearing bracket 15 is inserted into the bearing groove 2. The clamp 16 is then rotated to fix the bearing bracket 15, thereby fixing the positioning bearing 3, so that the utility model can continue to be used. Thus, the working process of this equipment is completed.

[0029] Example 2

[0030] like Figure 1 and Figure 2 As shown, the present invention proposes an air expansion shaft variable diameter bushing. Compared with the first embodiment, this embodiment further includes: a connecting seat 8 is installed in the middle of one side of the bushing 1. There are two connecting seats 8 in total, and the two connecting seats 8 are respectively located in the middle of one side of the two bushings 1. A flipping frame 5 is installed inside the connecting seat 8 through a locking device 6. A magnet 4 is installed at the end of the flipping frame 5. A wrench 7 is installed in the middle of one side of the flipping frame 5.

[0031] In this embodiment, after the bushing 1 is clamped, the locking device 6 is loosened, and then the flipping frame 5 is turned by the wrench 7 to flip the magnet 4 to the side of the air shaft. After that, the locking device 6 is tightened to fix the flipping frame 5, and the magnet 4 can be used to position and fix the present invention.

[0032] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A gas expansion shaft reducing sleeve, comprising a sleeve (1) and a connecting frame (9), characterized in that: The connecting frame (9) is installed at the middle position of both sides of the shaft sleeve (1), the reset slot (10) is arranged at the position of the connecting frame (9) inside the shaft sleeve (1), the reset spring (11) is installed at the middle of one side of the reset slot (10) inside the connecting frame (9) through the spring seat, the bearing groove (2) is arranged on the outer surface of the shaft sleeve (1), the bearing frame (15) is installed inside the bearing groove (2), and the positioning bearing (3) is installed inside the bearing frame (15) through the pin shaft (13).

2. The variable diameter bushing of claim 1, wherein: The positioning pin (12) is installed inside the bearing groove (2), and the positioning slot (14) is arranged at the position of the positioning pin (12) on one side of the bearing frame (15); the positioning pin (12) is clamped inside the positioning slot (14).

3. The variable diameter bushing of claim 1, wherein: The clamping device (16) is movably installed on both sides of the bearing groove (2), and the clamping groove (17) is arranged at the position of the clamping device (16) on the bearing frame (15); the clamping device (16) is clamped inside the clamping groove (17).

4. The variable diameter bushing of claim 1, wherein: The connecting seat (8) is installed at the middle of one side of the shaft sleeve (1), the turnover frame (5) is installed inside the connecting seat (8) through the locking device (6), and the magnet (4) is installed at the tail end of the turnover frame (5).

5. The gas inflatable shaft reducer sleeve according to claim 4, wherein: The wrench (7) is installed at the middle of one side of the turnover frame (5).

6. The variable diameter bushing of claim 1, wherein: There are two shaft sleeves (1), and the two shaft sleeves (1) are connected through the connecting frame (9).

7. The gas inflatable shaft reducer sleeve according to claim 4, wherein: There are two connecting seats (8), and the two connecting seats (8) are arranged at the middle positions of the sides of the two shaft sleeves (1).

8. The variable diameter bushing of claim 1, wherein: There are thirty positioning bearings (3), and the thirty positioning bearings (3) are equally divided into six groups; the six groups of positioning bearings (3) are equally arranged at the positions of the outer surfaces of the shaft sleeves (1) on both sides.

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