CN215159504U

CN215159504U - Hollow air expansion shaft

Info

Publication number: CN215159504U
Application number: CN202121047048.XU
Authority: CN
Inventors: 罗锦超
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-14
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a cavity physiosis axle, including axle sleeve, fixed axle, gasbag, air cock and a plurality of tight key that expands, the axle sleeve is worn to establish by the fixed axle, and the through-hole that runs through is seted up along axial direction to the fixed axle, and the inner wall of through-hole is provided with the setting element, and the outside of fixed axle is established to the gasbag cover, and the air cock is connected with the fixed axle, has seted up the air flue on the fixed axle, and the air cock passes through air flue and gasbag intercommunication, and the one end of each tight key that expands all with the gasbag butt, the axle sleeve is worn to establish by the other end, and each tight key that expands sets up along the circumference interval of gasbag. The utility model discloses a well physiosis axle, through set up the through-hole on the fixed axle, then be provided with the setting element at the inner wall of through-hole, set up the constant head tank that corresponds with the setting element on the rotation axis of the equipment of being connected with the well physiosis axle. When the hollow air expansion shaft is connected with the rotating shaft, the positioning groove in the rotating shaft is aligned with the positioning piece, and then the rotating shaft penetrates through the through hole, so that connection can be completed. Compare with traditional bolted connection, the dismouting is changed more conveniently.

Description

Hollow air expansion shaft

Technical Field

The utility model relates to a relevant technical field of physiosis axle especially relates to a cavity physiosis axle.

Background

In the production process of strip products, the produced products need to be wound on a mandrel for transportation and processing in the next process. The inflatable shaft is a special auxiliary shaft for assisting the rolling and unreeling of a strip product, the surface of the inflatable shaft can be protruded to support a mandrel after high-pressure inflation, and the surface part of the inflatable shaft can be quickly retracted after deflation so as to be convenient for taking down the mandrel sleeved on the inflatable shaft.

Generally, the connection between the air expanding shaft and the rotating shaft of the machine is realized by fixing the air expanding shaft and the rotating shaft together by bolts, and the size of the air expanding shaft is matched with that of the mandrel to play a corresponding role because the size of the mandrel of the strips in different batches can be different. Therefore, when the size of the mandrel is changed, the corresponding air inflation shaft needs to be replaced. The bolt needs to be disassembled by tools such as a wrench to replace the air-expanding shaft, the old air-expanding shaft is disassembled, then the new air-expanding shaft is replaced, the bolt is screwed by using tools, the operation is complex, the risk of sliding wires can exist in frequent disassembling and assembling of the bolt, the related assemblies can only be replaced after the sliding wires, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a convenient hollow physiosis axle is changed in dismouting to overcome the not enough that exist among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a cavity physiosis axle, includes axle sleeve, fixed axle, gasbag, air cock and a plurality of tight key that expands, the fixed axle is worn to establish the axle sleeve, the fixed axle sets up the through-hole that runs through along axial direction, the inner wall of through-hole is provided with the setting element, the gasbag cover is established the outside of fixed axle, the air cock with the fixed axle is connected, the air flue has been seted up on the fixed axle, the air cock passes through the air flue with gasbag intercommunication, each the one end of tight key that expands all with the gasbag butt, the other end is worn to establish the axle sleeve, each tight key that expands is followed the circumference interval of gasbag sets up.

In one embodiment, the positioning member and the fixing shaft are integrally formed, and the air passage is formed in the positioning member.

In one embodiment, the end of the expansion key, which is far away from the air bag, is provided with an anti-skid line.

In one embodiment, the hollow inflatable shaft further comprises a plurality of supporting plates, each supporting plate corresponds to each expansion key one by one, and two sides of each supporting plate are respectively abutted to the air bag and the expansion keys.

In one embodiment, one side of the supporting plate close to the air bag is an arc surface, one side of the supporting plate far away from the air bag is provided with a clamping groove, and the expansion key is provided with a buckle corresponding to the clamping groove.

In one embodiment, an elastic member is disposed between the supporting plate and the shaft sleeve, and two ends of the elastic member respectively abut against the shaft sleeve and the supporting plate.

In one embodiment, the resilient member is a spring.

In one embodiment, the hollow air inflation shaft further comprises a flange plate, the flange plate is arranged at one end of the shaft sleeve, and the shaft sleeve is connected with the flange plate through a fastening piece.

In one embodiment, the fastener is a bolt.

In one embodiment, the shaft sleeve, the fixed shaft and the flange are coaxially arranged.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a well physiosis axle, through set up the through-hole on the fixed axle, then be provided with the setting element at the inner wall of through-hole, set up the constant head tank that corresponds with the setting element on the rotation axis of the equipment of being connected with the well physiosis axle. When the hollow air expansion shaft is connected with the rotating shaft, the positioning groove in the rotating shaft is aligned with the positioning piece, and then the rotating shaft penetrates through the through hole, so that connection can be completed. Compare with traditional bolted connection, the dismouting is changed more conveniently.

Drawings

Fig. 1 is a schematic view of an air shaft structure according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of the inflatable shaft of FIG. 1 taken along line A-A;

FIG. 3 is an enlarged view of the structure at B of the inflatable shaft shown in FIG. 2;

FIG. 4 is an exploded view of the inflatable spindle of FIG. 1;

fig. 5 is a schematic structural view of the expansion key and the supporting plate in the hollow expansion shaft shown in fig. 4.

Reference is made to the accompanying drawings in which:

a hollow inflatable shaft 100;

a shaft sleeve 10, a key groove 101; the fixing shaft 20, the through hole 201, the air channel 202 and the positioning piece 21; an air bag 30; an air tap 40; an expansion key 50, an anti-skid line 51 and a buckle 52; the supporting plate 60 and the clamping groove 601; a flange 70.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of an element is referred to as "a plurality," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The present invention will be described in detail with reference to embodiments shown in the drawings:

as shown in fig. 1 and 5, for the utility model discloses a hollow air shaft 100 of a preferred embodiment, including axle sleeve 10, fixed axle 20, gasbag 30, air cock 40 and a plurality of tight key 50 that expands, axle sleeve 10 is worn to establish by fixed axle 20, fixed axle 20 sets up the through-hole 201 that runs through along the axial direction, the inner wall of through-hole 201 is provided with setting element 21, the outside of fixed axle 20 is established to gasbag 30 cover, air cock 40 is connected with fixed axle 20, the air flue 202 has been seted up on fixed axle 20, air cock 40 passes through air flue 202 and gasbag 30 intercommunication, the one end of each tight key 50 that expands all with gasbag 30 butt, axle sleeve 10 is worn to establish by the other end, each tight key 50 that expands sets up along the circumference interval of gasbag 30. The utility model discloses a well physiosis axle 100, through set up through-hole 201 on fixed axle 20, then be provided with setting element 21 at the inner wall of through-hole 201, set up the constant head tank that corresponds with setting element 21 on the rotation axis of the equipment of being connected with well physiosis axle 100. When the hollow physiosis shaft 100 is connected with the rotating shaft, the positioning groove on the rotating shaft is aligned with the positioning part 21, and then the rotating shaft penetrates through the through hole 201, so that the connection can be completed. Compare with traditional bolted connection, the dismouting is changed more conveniently.

As shown in fig. 1 and 2, the shaft sleeve 10 is a hollow cylinder structure, a plurality of key slots 101 are formed on a side wall of the shaft sleeve 10, and the key slots 101 are arranged at intervals along a circumferential direction of the shaft sleeve 10.

Referring to fig. 1, 2 and 4, the fixing shaft 20 has a shaft-like structure with two large ends and a small middle. The fixed shaft 20 penetrates through the shaft sleeve 10, and one end of the fixed shaft 20 is fixed with the shaft sleeve 10 through a flat head bolt. The fixed shaft 20 is provided with a through hole 201 along the axial direction, and a positioning member 21 is disposed on the inner wall of the through hole 201. Further, the fixing shaft 20 is provided with an air passage, in the embodiment, the positioning member 21 and the fixing shaft 20 are integrally formed, and the air passage 202 is provided on the positioning member 21, in other embodiments, the air passage 202 may not be provided on the positioning member 21, but may be directly provided on the fixing shaft 20.

As shown in fig. 2 and 4, the airbag 30 is sleeved outside the fixing shaft 20, specifically, the airbag 30 is sleeved in the middle of the fixing shaft 20, and since the fixing shaft 20 has a shaft-like structure with large ends and small middle, the sealing performance of the airbag 30 can be ensured when the airbag 30 is sleeved in the middle of the fixing shaft 20.

As shown in fig. 1 to 4, the air faucet 40 is disposed at one end of the fixing shaft 20, one end of the air faucet 40 is connected to the fixing shaft 20 by a screw thread, the other end of the air faucet passes through the shaft sleeve 10, and a mounting hole (not shown) corresponding to the air faucet 40 is formed on the shaft sleeve 10. Further, the air tap 40 is communicated with the airbag 30 through the air passage 202, the air tap 40 is used for filling air into the airbag 30, in addition, the air tap 40 also plays a role of releasing air inside the airbag 30, and compressed air enters the airbag 30 through the air tap 40, so that the airbag 30 inflates and expands; when it is desired to release gas, the gas is expelled from the air bag 30 through the gas nozzle 40 by depressing the gas nozzle 40.

As shown in fig. 1, 2, 4 and 5, the present hollow inflatable shaft 100 further includes a plurality of expansion keys 50, one end of each expansion key 50 is abutted against the airbag 30, the other end is inserted into a key groove 101 of the shaft sleeve 10, and each expansion key 50 is provided at intervals along the circumferential direction of the airbag 30. Further, the end of the expansion key 50, which is far away from the airbag 30, is provided with an anti-slip pattern 51, and the anti-slip pattern 51 can increase the friction force between the expansion key 50 and the strip mandrel, so as to prevent the expansion key 50 and the strip mandrel from rotating relatively in the process of winding and unwinding the strip. Further, a buckle 52 is disposed at one end of the expansion key 50 close to the air bag 30. Further, the hollow inflatable shaft 100 further comprises a plurality of supporting plates 60, each supporting plate 60 corresponds to each expansion key 50 one by one, and two sides of each supporting plate 60 are respectively abutted to the air bag 30 and the expansion keys 50. Further, one side of the supporting plate 60 close to the airbag 30 is an arc surface, and the arc surface can increase the contact area between the airbag 30 and the supporting plate 60, reduce the pressure applied by the supporting plate 60 to the airbag 30, and is beneficial to prolonging the service life of the airbag 30. A clamping groove 601 is formed in one side, away from the air bag 30, of the supporting plate 60, the clamping groove 601 corresponds to the buckle 52, and the buckle 52 is inserted into the clamping groove 601 and used for connecting the expansion key 50 with the supporting plate 60. Further, an elastic member (not shown) is disposed between the supporting plate 60 and the shaft sleeve 10, two ends of the elastic member respectively abut against the shaft sleeve 10 and the supporting plate 60, and the elastic member can automatically retract the expansion key 50 into the shaft sleeve 10 after the air bag 30 releases air, so as to take down the belt material mandrel sleeved on the shaft sleeve 10. Optionally, the resilient member is a spring.

In this embodiment, the hollow air shaft 100 further includes a flange 70, the flange 70 is disposed at an end of the shaft sleeve 10 away from the air nozzle 40, the flange 70 can play a role of positioning, and when the core shaft of the strip is sleeved on the shaft sleeve 10, one end of the core shaft of the strip abuts against the flange 70, so as to facilitate positioning. Further, the sleeve 10 is connected to the flange 70 by fasteners, which are bolts in this embodiment. Further, the sleeve 10, the fixed shaft 20 and the flange 70 are coaxially arranged, so that the strip mandrel can rotate more stably during the strip reeling and unreeling process.

During the use, align locating slot and setting element 21 on the rotation axis of external equipment, wear to establish through-hole 201 with the rotation axis after that, accomplish this cavity physiosis axle 100 and rotation axis and be connected, establish the core shaft sleeve of strip on axle sleeve 10 afterwards, make the one end and the ring flange 70 butt of the dabber of strip, then fill compressed gas in toward gasbag 30 through air cock 40, make the inside butt of dabber of tight key 50 and strip expand, start-up equipment immediately, it is rotatory to drive this cavity physiosis axle 100, in order to accomplish the book of strip and put, the strip is rolled up and is put the completion back, press the inside gas of air cock 40 release gasbag 30, the dabber of strip is taken off at last.

The utility model discloses a well physiosis axle 100, through set up through-hole 201 on fixed axle 20, then be provided with setting element 21 at the inner wall of through-hole 201, set up the constant head tank that corresponds with setting element 21 on the rotation axis of the equipment of being connected with well physiosis axle 100. When the hollow physiosis shaft 100 is connected with the rotating shaft, the positioning groove on the rotating shaft is aligned with the positioning part 21, and then the rotating shaft penetrates through the through hole 201, so that the connection can be completed. Compare with traditional bolted connection, the dismouting is changed more conveniently.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a well physiosis axle, its characterized in that, includes axle sleeve, fixed axle, gasbag, air cock and a plurality of tight key that expands, the fixed axle is worn to establish the axle sleeve, the through-hole that runs through is seted up to the fixed axle along axial direction, the inner wall of through-hole is provided with the setting element, the gasbag cover is established the outside of fixed axle, the air cock with the fixed axle is connected, the air flue has been seted up on the fixed axle, the air cock passes through the air flue with the gasbag intercommunication, each the one end of tight key that expands all with the gasbag butt, the other end is worn to establish the axle sleeve, each tight key that expands is followed the circumference interval of gasbag sets up.

2. The hollow air shaft according to claim 1, wherein said positioning member is integrally formed with said fixed shaft, and said air passage is provided on said positioning member.

3. The hollow inflation shaft of claim 1, wherein an end of the inflation key remote from the balloon is provided with anti-slip threads.

4. The hollow inflator according to claim 1, further comprising a plurality of support plates, each support plate corresponding to each expansion key one to one, wherein both sides of the support plate abut against the airbag and the expansion key, respectively.

5. The hollow inflation shaft of claim 4, wherein the side of the support plate close to the airbag is a cambered surface, the side of the support plate far away from the airbag is provided with a clamping groove, and the expansion key is provided with a buckle corresponding to the clamping groove.

6. The hollow air shaft according to claim 4, wherein an elastic member is provided between said support plate and said shaft sleeve, and both ends of said elastic member abut against said shaft sleeve and said support plate, respectively.

7. The hollow air shaft of claim 6, wherein said resilient member is a spring.

8. The hollow air shaft of claim 1, further comprising a flange disposed at one end of said sleeve, said sleeve being connected to said flange by fasteners.

9. The hollow air shaft of claim 8 wherein said fastener is a bolt.

10. The hollow air shaft of claim 8, wherein said hub, stationary shaft and flange are coaxially disposed.