An air inflation shaft

Abstract

The utility model relates to the technical field of gas expansion shaft, and disclose a kind of gas expansion shaft, the periphery inner wall of bearing ring is equipped with ball bearing, the inner wall of ball bearing is inserted with mounting rod, the outer wall of one side of bearing ring is equipped with sleeve plate, the outer wall of sleeve plate is equipped with clamping groove, sleeve plate is sleeved on the outer wall of mounting rod by clamping groove.The utility model is equipped with ball bearing, clamping ring and sleeve plate, the both sides of ball bearing are fixed by clamping ring and sleeve plate, mounting rod is positioned around by clamping groove, so that mounting rod is fixed in ball bearing and rotates, two mountings are horizontally fixed on machine, so that gas expansion shaft body is horizontally fixed on machine and cooperates to be used, hook is convenient to lift and carry fixed structure and mounting rod, sleeve plate and sealing plate are fixedly connected by bolt and nut, when the mounting rod of gas expansion shaft body is needed to be taken out, it is convenient to disassemble and assemble, and the flexibility of the gas expansion shaft body is improved.

Description

Technical Field

[0001] This utility model relates to the field of air shaft equipment technology, specifically an air shaft. Background Technology

[0002] An air shaft, also known as a pneumatic shaft, expansion shaft, air-filled shaft, or pressure shaft, is a special type of winding and unwinding shaft. It is a shaft whose surface (referring to the key bar) protrudes after being inflated under high pressure, and whose surface (referring to the key bar) quickly retracts after deflating. Air shafts have a wide range of applications; they can be used in any machine that performs winding, unwinding, or slitting, and even in the light metal industry.

[0003] Application number CN202022867738.1 discloses an air shaft, including a shaft body, a housing mounted on the outside of the shaft body, an expansion tube disposed inside the housing, and multiple sets of expansion key cavities evenly installed on the outside of the housing. Each expansion key cavity contains an expansion key body, and a connecting rod located inside the housing is fixedly connected to the bottom of the expansion key body. The expansion key body is fixedly connected to the expansion tube via the connecting rod. An air inlet is provided at the top end of the housing, and an air outlet is provided at the bottom end. This invention, through the use of mounting bolts and mutually cooperating mounting holes, makes the disassembly and replacement of the expansion key body of the entire device simpler and faster. The sealing cap improves the sealing effect of the air inlet and outlet, and the fixing bolts facilitate the disassembly of the housing, resulting in better cleaning of the entire device by the operator.

[0004] The air shaft disclosed in the above document has the following defects: during the use of the air shaft, the structure needs to be fixedly installed with the motor, and the other end of the air shaft needs to be horizontally placed on the ground to cooperate with the motor to rotate. The air shaft does not have a connection structure that is easy to disassemble and assemble, and it is cumbersome when the structure needs to be disassembled and assembled.

[0005] Therefore, it can be seen that the existing air shaft does not have a convenient disassembly and assembly connection structure. It is necessary to improve the existing shortcomings and provide a connection structure that can be easily disassembled and assembled. Utility Model Content

[0006] The purpose of this invention is to provide an air shaft to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to an air shaft, comprising an air shaft body and a fixing structure. The air shaft body is snapped onto the inner wall of the fixing structure. The fixing structure includes a bearing ring, with ball bearings provided on the inner walls of the bearing ring. An installation rod is inserted into the inner wall of the ball bearings. A sleeve plate is provided on one outer wall of the bearing ring, and a slot is formed on the outer wall of the sleeve plate. The sleeve plate is fitted onto the outer wall of the installation rod through the slot. The purpose of this design is that, during the use of the air shaft body, the port of the mounting rod is connected to the air inlet pipe, and gas enters the mounting rod through it. The gas drives the expansion key blocks around the shaft to expand outward. A threaded rod connects to the motor for further use. A retaining block reinforces the connection between the threaded rod and the motor. The mounting rod is then inserted into the ball bearing. When the shaft drives the mounting rod to rotate, the mounting rod drives the ball bearing to rotate within the bearing ring. The ball bearing is fixed on both sides by a retaining ring and a sleeve plate. The mounting rod is positioned around its perimeter by a retaining groove. The sleeve plate is then fixed to the bearing ring with bolts, allowing the mounting rod to rotate within the ball bearing. The two mounting seats are horizontally fixed to the machine, ensuring the air shaft body is horizontally fixed for use. Hooks facilitate lifting and moving the fixing structure and mounting rod. The sleeve plate and sealing plate are fixed together with bolts and nuts. This design facilitates disassembly and assembly when the mounting rod of the air shaft body needs to be removed, improving the flexibility of the air shaft body.

[0009] Furthermore, a sealing plate is provided on the outer wall of the other side of the bearing ring, and a retaining ring is provided on the outer wall of the sealing plate. The ball bearing is rotatably connected to the inner wall of the retaining ring. The purpose of this arrangement is that, during the use of the air shaft body, the ball bearing is fixed on both sides by the retaining ring and the sleeve plate, the mounting rod is positioned around the perimeter by the retaining groove, and then the sleeve plate is fixed to the bearing ring by bolts and the sleeve plate, so that the mounting rod is fixed and rotates inside the ball bearing.

[0010] Furthermore, bolts are threaded onto the inner walls of the sealing plate, with one end of each bolt penetrating the sealing plate, bearing ring, and sleeve plate. Nuts are threaded onto the outer walls of the bolts, and these nuts are located on the outer walls of the sleeve plate. This design allows the sleeve plate and sealing plate to be fixedly connected by bolts and nuts during use of the air shaft body. It also facilitates disassembly and assembly when the mounting rod of the air shaft body needs to be removed, thus improving the flexibility of the air shaft body.

[0011] Furthermore, hooks are provided on the top two outer walls of the bearing ring, and mounting seats are welded on the bottom two outer walls of the bearing ring. The purpose of this arrangement is to horizontally fix the two mounting seats to the machine during the use of the air shaft body, so that the air shaft body is horizontally fixed to the machine for use, and the hooks facilitate lifting and moving the fixing structure and mounting rod.

[0012] Furthermore, the air shaft body includes a shaft, with the mounting rod located at one end of the shaft, and expansion key blocks installed on the outer wall of the shaft. This arrangement is intended so that, during use, the port of the mounting rod is connected to an air inlet pipe, allowing gas to enter the mounting rod and causing the expansion key blocks around the shaft to expand outwards.

[0013] Furthermore, a retaining block is welded to the other end of the shaft, and a threaded rod is welded to one end of the retaining block. The purpose of this arrangement is that, during the use of the air shaft body, it is used in conjunction with a motor via the threaded rod, and the retaining block reinforces the connection between the threaded rod and the motor.

[0014] This utility model has the following beneficial effects:

[0015] (1) This utility model uses ball bearings, retaining rings and sleeve plates to fix the two sides of the ball bearings, and uses the retaining rings and sleeve plates to position the mounting rod around the perimeter, so that the mounting rod is fixed in the ball bearing and rotates. The two mounting seats are horizontally fixed on the machine, so that the air shaft body is horizontally fixed on the machine for use. The hook makes it easy to lift the fixed structure and mounting rod for transportation. The sleeve plate and sealing plate are fixedly connected by bolts and nuts. When it is necessary to remove the mounting rod of the air shaft body, it is easy to disassemble and assemble, which improves the flexibility of the air shaft body.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the air shaft of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the fixed structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled fixed structure of this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Air shaft body; 101. Shaft; 102. Mounting rod; 103. Expansion key block; 104. Clamping block; 105. Threaded rod; 2. Fixing structure; 200. Bolt; 201. Bearing ring; 202. Ball bearing; 203. Hook; 204. Mounting base; 205. Sleeve; 207. Nut; 208. Slot; 209. Sealing plate; 210. Clamping ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Please see Figure 1 - Figure 4 As shown, this utility model is an air shaft, including an air shaft body 1 and a fixing structure 2. The air shaft body 1 is snapped onto the inner wall of the fixing structure 2. The fixing structure 2 includes a bearing ring 201. Ball bearings 202 are provided on the inner walls of the bearing ring 201. An installation rod 102 is inserted into the inner wall of the ball bearings 202. A sleeve plate 205 is provided on one outer wall of the bearing ring 201. A slot 208 is opened on the outer wall of the sleeve plate 205. The sleeve plate 205 is sleeved onto the outer wall of the installation rod 102 through the slot 208. The purpose of this configuration is that, during the use of the air shaft body 1, the port of the mounting rod 102 is connected to the air inlet pipe, and gas enters the mounting rod 102 through it. The gas drives the expansion key blocks 103 around the shaft 101 to expand outward. This expansion is then connected to the motor via the threaded rod 105. The retaining block 104 reinforces the connection between the threaded rod 105 and the motor. The mounting rod 102 is then inserted into the ball bearing 202. When the shaft 101 drives the mounting rod 102 to rotate, the mounting rod 102 drives the ball bearing 202 to rotate within the bearing ring 201. The retaining ring 210 and the sleeve 205 fix both sides of the ball bearing 202. The groove 208 positions the mounting rod 102 around its perimeter. The sleeve 205 is then fixed to the bearing ring 201 by bolts 200 and the sleeve 205 together, so that the mounting rod 102 is fixed and rotates within the ball bearing 202. The two mounting seats 204 are horizontally fixed to the machine, so that the air shaft body 1 is horizontally fixed to the machine for use. The hook 203 facilitates the lifting and handling of the fixing structure 2 and the mounting rod 102. The sleeve 205 and the sealing plate 209 are fixedly connected by bolts 200 and nuts 207. When it is necessary to remove the mounting rod 102 of the air shaft body 1, it is convenient to disassemble and assemble, thus improving the flexibility of the air shaft body 1.

[0026] A sealing plate 209 is provided on the outer wall of the bearing ring 201 on the other side. A retaining ring 210 is provided on the outer wall of the sealing plate 209. The ball bearing 202 is rotatably connected to the inner wall of the retaining ring 210. The purpose of this arrangement is that, during the use of the air shaft body 1, the ball bearing 202 is fixed on both sides by the retaining ring 210 and the sleeve plate 205, the mounting rod 102 is positioned around the perimeter by the retaining groove 208, and the sleeve plate 205 is fixed to the bearing ring 201 by bolts 200 and the sleeve plate 205, so that the mounting rod 102 is fixed and rotates inside the ball bearing 202.

[0027] Bolts 200 are threaded onto the inner walls of the sealing plate 209. One end of each bolt 200 passes through the sealing plate 209, the bearing ring 201, and the sleeve plate 205. Nuts 207 are threaded onto the outer walls of the bolts 200 and are located on the outer walls of the sleeve plate 205. This arrangement allows the sleeve plate 205 and the sealing plate 209 to be fixedly connected by bolts 200 and nuts 207 during use of the air shaft body 1. It also facilitates disassembly and assembly when the mounting rod 102 of the air shaft body 1 needs to be removed, thus improving the flexibility of the air shaft body 1.

[0028] Hooks 203 are provided on the top two outer walls of the bearing ring 201, and mounting seats 204 are welded on the bottom two outer walls of the bearing ring 201. The purpose of this arrangement is to horizontally fix the two mounting seats 204 to the machine during the use of the air shaft body 1, so that the air shaft body 1 is horizontally fixed to the machine for use. The hooks 203 facilitate the lifting and handling of the fixing structure 2 and the mounting rod 102.

[0029] The air shaft body 1 includes a shaft 101, a mounting rod 102 located at one end of the shaft 101, and expansion key blocks 103 mounted on the outer wall of the shaft 101. This arrangement is intended so that, during use, the port of the mounting rod 102 is connected to an air inlet pipe, allowing gas to enter the mounting rod 102 and causing the expansion key blocks 103 around the shaft 101 to expand outwards.

[0030] A retaining block 104 is welded to the other end of the shaft 101, and a threaded rod 105 is welded to one end of the retaining block 104. The purpose of this arrangement is that, during the use of the air shaft body 1, the threaded rod 105 is used to connect with the motor, and the retaining block 104 reinforces the connection between the threaded rod 105 and the motor.

[0031] In use, during the operation of the air shaft body 1, the port of the mounting rod 102 is connected to the air inlet pipe, and gas enters the mounting rod 102 through the mounting rod 102. The gas drives the expansion key blocks 103 around the shaft 101 to expand outward. It is used in conjunction with the motor through the threaded rod 105. The retaining block 104 reinforces the connection between the threaded rod 105 and the motor. The mounting rod 102 is inserted into the ball bearing 202. When the shaft 101 drives the mounting rod 102 to rotate, the mounting rod 102 drives the ball bearing 202 to rotate within the bearing ring 201. The ball bearing 202 is fixed on both sides by the retaining ring 210 and the sleeve plate 205, and the retaining groove 210 is used to fix the ball bearing 202. 08 Position the mounting rod 102 around its perimeter, then fix the sleeve 205 to the bearing ring 201 with bolts 200 and the sleeve 205 together, so that the mounting rod 102 is fixed and rotated inside the ball bearing 202. Fix the two mounting seats 204 horizontally on the machine, so that the air shaft body 1 is horizontally fixed on the machine for use. The hook 203 makes it easy to lift the fixing structure 2 and the mounting rod 102 for handling. Fix the sleeve 205 and the sealing plate 209 with bolts 200 and nuts 207. When it is necessary to remove the mounting rod 102 of the air shaft body 1, it is convenient to disassemble and assemble, which improves the flexibility of the air shaft body 1.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An air shaft, comprising an air shaft body (1) and a fixing structure (2), characterized in that: The main body (1) of the air shaft is snapped onto the inner wall of the fixed structure (2). The fixed structure (2) includes a bearing ring (201). A ball bearing (202) is provided on the inner wall of the bearing ring (201). An installation rod (102) is inserted into the inner wall of the ball bearing (202). A sleeve plate (205) is provided on one side of the outer wall of the bearing ring (201). A slot (208) is opened on the outer wall of the sleeve plate (205). The sleeve plate (205) is sleeved onto the outer wall of the installation rod (102) through the slot (208).

2. The air shaft according to claim 1, characterized in that: A sealing plate (209) is provided on the outer wall of the other side of the bearing ring (201), and a retaining ring (210) is provided on the outer wall of the sealing plate (209). The ball bearing (202) is rotatably connected to the inner wall of the retaining ring (210).

3. The air shaft according to claim 2, characterized in that: Bolts (200) are threaded on the inner walls of the sealing plate (209). One end of the bolts (200) passes through the sealing plate (209), the bearing ring (201), and the sleeve plate (205). Nuts (207) are threaded on the outer walls of the bolts (200). The nuts (207) are located on the outer walls of the sleeve plate (205).

4. The air shaft according to claim 1, characterized in that: Hooks (203) are provided on the top two outer walls of the bearing ring (201), and mounting seats (204) are welded on the bottom two outer walls of the bearing ring (201).

5. The air shaft according to claim 1, characterized in that: The air shaft body (1) includes a shaft (101), the mounting rod (102) is located at one end of the shaft (101), and an expansion key block (103) is installed on the outer wall of the shaft (101).

6. The air shaft according to claim 5, characterized in that: A locking block (104) is welded to the other end of the shaft (101), and a threaded rod (105) is welded to one end of the locking block (104).

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