A regulating and correcting gas expansion shaft

Abstract

The present application relates to the technical field of winding shaft, in particular to a kind of adjusting deviation gas expansion shaft, including shaft cylinder, the shaft cylinder both ends are equipped with the shaft head of sealing shaft cylinder, the shaft head is equipped with the gas inlet and outlet, the hollow mandrel is equipped in the shaft cylinder, the inner core sleeve is also equipped in the shaft cylinder, the mandrel is equipped in the inner core sleeve and passes through both ends of shaft head, the mandrel is also equipped with several mutually interlocked board strips between the shaft head between both ends, the board strip and shaft cylinder are also equipped with air chamber, the shaft head and board strip connecting end are also equipped with the anti-extraction device when air chamber is filled after board strip expands, the adjusting device that mandrel is also equipped with when clockwise and counterclockwise rotation controls mandrel from the other end of shaft cylinder even extends or retracts, the beneficial effects of the present application are: the mandrel in gas expansion shaft can be adjusted to extend or retract at any time, so that gas expansion shaft can be adjusted and deviation corrected at any time during equipment operation, and even expansion force is realized by using board strip type, and it is not easy to over-expand and crack.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of winding shaft, in particular to a kind of adjusting deviation gas expansion shaft. BACKGROUND

[0002] Gas expansion shaft is a kind of special winding and unwinding shaft, that is, the surface (pointing board) can protrude after high-pressure inflation, and the surface part (pointing board) quickly shrinks back after deflation, which is called gas expansion shaft, wherein, gas expansion shaft is needed in the production process of new energy battery equipment, printing, packaging, plastic, pharmaceutical, textile and other mechanical industries, and can only support product rotation for winding work after being tightened by gas expansion shaft.

[0003] When the gas expansion shaft is installed on the equipment, sometimes because the length of the workpiece is too long or too short, the fixation between the gas expansion shaft and the workpiece is unstable, and the workpiece is easy to fall off during rotation work, and the key strip type expansion key is used in daily gas expansion shaft, which cannot realize uniform tightening force, and is easy to damage the workpiece. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a gas expansion shaft that can adjust the extension and retraction of the mandrel in the gas expansion shaft at any time to adjust and correct the gas expansion shaft at any time during equipment operation, and adopt a board type to realize uniform tightening force and not easy to over-expand and crack.

[0005] To achieve the above purpose, a kind of adjusting deviation gas expansion shaft, including shaft cylinder, the both ends of the shaft cylinder are provided with shaft head sealing the shaft cylinder, the shaft head is provided with inflation and deflation port, the shaft cylinder is provided with hollow mandrel, the shaft cylinder is also provided with inner core sleeve, the inner core sleeve is provided with mandrel passing through both ends of the shaft head, a plurality of mutually interlocking board strips are circumferentially arranged between the both ends of the shaft head, the board strip and the shaft cylinder are also provided with air chamber, the shaft head and the board strip connection end are also provided with anti-drop device to prevent the board strip from popping out of the gas expansion shaft after the board strip expands after the air chamber is inflated, the safety of the product is increased, the extension and retraction of the one end of the mandrel and the working end can be controlled by rotating the adjusting device on one side of the mandrel.

[0006] By adopting the above technical scheme, the board strips are mutually interlocked, and the workpiece is also tightened when the air chamber is inflated, the anti-drop device prevents the board strip from popping out of the gas expansion shaft due to the effect of tightening force, the safety of the product is increased, the extension and retraction of the one end of the mandrel and the working end can be controlled by rotating the adjusting device on one side of the mandrel.

[0007] The adjusting and rectifying gas expansion shaft can be further provided with: the adjusting device comprises an adjusting platform fixedly sleeved with one end of the shaft cylinder and an adjusting cover rotatably sleeved with the outer end of the adjusting platform, and the center of the adjusting cover is further provided with an adjusting rod fixedly sleeved with the center of the mandrel.

[0008] By the above technical scheme, the adjusting rod is connected with the mandrel through threads, when the adjusting cover is rotated clockwise, the mandrel is pushed out from the shaft cylinder by the adjusting rod through threads, so that the gas expansion shaft is completed, then when the adjusting cover is rotated counterclockwise, the mandrel is brought back from the original position through the rotation of the threads, so that the whole gas expansion shaft is rectified in the workpiece, the adjustment is convenient, and since the material of some workpieces is relatively fragile, the method of manually rotating the adjusting cover also protects the material of the parts better, reduces the damage of the material, and reduces the cost.

[0009] The adjusting and rectifying gas expansion shaft can be further provided with: the mandrel is further provided with an adjusting fixed block, and the inner core sleeve is provided with an adjusting hole for axial movement of the adjusting fixed block.

[0010] By the above technical scheme, when the mandrel is controlled to move axially, the adjusting fixed block on the mandrel can only be axially adjusted on the adjusting hole, so that the axial movement distance of the mandrel is controllable, the length of the side of the adjusting hole is the axial movement length of the mandrel, and since the daily rectification does not require long distance adjustment, the rectification distance of the whole mandrel is controllable.

[0011] The adjusting and rectifying gas expansion shaft can be further provided with: the mandrel is further provided with an adjusting block with a diameter smaller than the outer diameter of the inner core sleeve and larger than the inner diameter of the inner core sleeve.

[0012] By the above technical scheme, the diameter of the adjusting block is larger than the inner core of the inner core sleeve, so that when the adjusting cover is rotated, the adjusting block will not be excessively adjusted to sink into the inner core sleeve, and the diameter smaller than the outer diameter of the inner core sleeve can be protected by the inner core sleeve during expansion to prevent being worn by other interference.

[0013] The adjusting and rectifying gas expansion shaft can be further provided with: the adjusting device further comprises a plurality of uniformly arranged limiting grooves circumferentially arranged on the adjusting platform and an adjusting groove penetratingly arranged on the adjusting cover, the adjusting groove is integrally provided with a steel ball always abutting against one side of the adjusting platform, a limiting spring always abutting the steel ball in the limiting groove, and a limiting platform fixedly arranged on the side of the adjusting cover away from the shaft head.

[0014] The adjusting cover is always rotated outside the adjusting table, the distance between each adjusting groove is fixed, when the adjusting cover is rotated, the limiting spring pushes the steel ball against the limiting groove, so that the adjusting cover can stop for a while when it rotates one distance, so that the rotation has a certain damping feeling, the hand feeling of rotation is better, and the limiting table fixed on one side of the adjusting cover also provides a fixed point for the limiting spring and the steel ball, so that they are always fixed on the adjusting cover.

[0015] The adjusting and rectifying gas expansion shaft can be further provided with anti-slip protrusions on the inner core sleeve close to the two end shaft heads, which abut against the shaft cylinder.

[0016] The anti-slip protrusions on the inner core sleeve also abut against the shaft cylinder, preventing the inner core sleeve from sliding out of the shaft cylinder, and enabling the inner core sleeve and the shaft cylinder to be in a fixed state when the inner core sleeve moves axially in the inner core sleeve, so that only the core shaft can be extended.

[0017] The adjusting and rectifying gas expansion shaft can be further provided with anti-slip protrusions on the inner core sleeve close to the two end shaft heads, which abut against the shaft cylinder.

[0018] The anti-slip protrusions on the inner core sleeve also abut against the shaft cylinder, preventing the inner core sleeve from sliding out of the shaft cylinder, and enabling the inner core sleeve and the shaft cylinder to be in a fixed state when the inner core sleeve moves axially in the inner core sleeve, so that only the core shaft can be extended.

[0019] The adjusting and rectifying gas expansion shaft can be further provided with anti-slip protrusions on the inner core sleeve close to the two end shaft heads, which abut against the shaft cylinder.

[0020] The anti-slip protrusions on the inner core sleeve also abut against the shaft cylinder, preventing the inner core sleeve from sliding out of the shaft cylinder, and enabling the inner core sleeve and the shaft cylinder to be in a fixed state when the inner core sleeve moves axially in the inner core sleeve, so that only the core shaft can be extended.

[0021] The adjusting and rectifying gas expansion shaft can be further provided with anti-slip protrusions on the inner core sleeve close to the two end shaft heads, which abut against the shaft cylinder.

[0022] The anti-slip protrusions on the inner core sleeve also abut against the shaft cylinder, preventing the inner core sleeve from sliding out of the shaft cylinder, and enabling the inner core sleeve and the shaft cylinder to be in a fixed state when the inner core sleeve moves axially in the inner core sleeve, so that only the core shaft can be extended.

[0023] The adjusting and rectifying inflation shaft can be further provided with: one end of the adjacent boards interlocked is provided with a anti-off groove, the other end is provided with an anti-off tooth interlocked with the anti-off groove, and the anti-off tooth and the anti-off groove always have a gap therebetween.

[0024] By adopting the technical scheme, when two boards are interlocked, one board is installed in the anti-off strip of the shaft head, then the anti-off tooth at the other end is interlocked with the anti-off groove, and then the other end of the shaft head is installed in sequence, and when the board is inflated, the internal gap can also expand against the inner wall of the workpiece, so that the board is not easy to break when inflated, and the service life of the product is increased.

[0025] The application will be further described in detail below in combination with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole schematic view of the embodiment 1 of the application.

[0027] Figure 2 It is an explosion schematic view of the embodiment 1 of the application.

[0028] Figure 3 It is a top view of the embodiment 1 of the application after removing the adjusting device and the shaft head.

[0029] Figure 4 It is an explosion schematic view of the adjusting device of the embodiment 1 of the application.

[0030] Figure 5 It is a top view of the adjusting cover of the embodiment 1 of the application.

[0031] Figure 6 It is a perspective view of the shaft head in the embodiment of the application.

[0032] Figure 7 It is a perspective view of the inner core sleeve in the embodiment of the application.

[0033] Figure 8 It is a perspective view of the core shaft and the sealing ring in the embodiment of the application.

[0034] Figure 9 It is a top view of the board in the embodiment of the application.

[0035] Figure 10 It is a state schematic view of the embodiment 2 of the application using the anti-skid lines.

[0036] Figure 11 It is a state schematic view of the embodiment 2 of the application adding the grooves.

[0037] In the figure: 1, shaft cylinder; 2, shaft head; 3, inflation and deflation port; 4, through hole; 5, mandrel; 6, inner core sleeve; 11, adjusting fixed block; 12, adjusting hole; 13, anti-skid protrusion; 14, sealing groove; 15, sealing ring; 21, board; 22, air chamber; 30, anti-dropping device; 31, anti-dropping block; 32, anti-dropping groove; 33, anti-dropping tooth; 34, missing groove; 40, adjusting device; 41, adjusting platform; 42, adjusting cover; 43, adjusting rod; 44, limiting groove; 45, adjusting groove; 46, steel ball; 47, limiting spring; 48, limiting platform; 49, anti-skid pattern; 50, adjusting block; 51, groove. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] Example 1: Figures 1-8The adjusting and rectifying gas expansion shaft shown in the application comprises a shaft cylinder 1, shaft heads 2 sealing the shaft cylinder 1 at both ends, gas charging and discharging ports 3 on the shaft heads 2, a hollow core shaft 5 in the shaft cylinder 1, an inner core sleeve 6 in the shaft cylinder 1, the core shaft 5 passing through the shaft heads 2, adjusting and fixing blocks 11 fixed on the core shaft 5, adjusting holes 12 on the inner core sleeve 6 for the axial movement of the adjusting and fixing blocks 11, anti-skid protrusions 13 on the inner core sleeve 6 close to the shaft heads 2 and abutting against the shaft cylinder 1, two circles of sealing grooves 14 on the ends of the core shaft 5 in contact with the inner core sleeve 6, sealing rings 15 in each of the sealing grooves 14, six mutually interlocked slats 20 circumferentially arranged between the shaft heads 2, air chambers 22 between the slats 21 and the shaft cylinder 1, anti-dropping devices 30 on the connecting ends of the shaft heads 2 and the slats 21 to prevent the slats 21 from dropping out after the slats 21 expand when the air chambers 22 are filled with air, the anti-dropping devices 30 comprising six anti-dropping blocks 31 arranged on the shaft heads 2 corresponding to the number of the slats 21 to prevent the slats 21 from dropping out and six missing grooves 34 arranged on the slats corresponding to the positions of the anti-dropping blocks 31, the anti-dropping blocks 31 and the missing grooves 34 being able to expand the slats 21 in the direction of the missing grooves 34 when the slats 21 expand to prevent the slats from popping out and thus increase the safety of the product, one end of each of the adjacent slats 21 being provided with an anti-dropping groove 32 and the other end being provided with an anti-dropping tooth 33 interlocked with the anti-dropping groove 32, a gap always existing between the anti-dropping tooth 33 and the anti-dropping groove 32, the gap allowing the slats 21 to still be in the interlocked state when the slats 21 expand, preventing the slats 21 from falling apart and also preventing the slats 21 from breaking due to being too tightly fixed, one end of the core shaft 5 being further provided with an adjusting device 40 to control the uniform extension or retraction of the core shaft 5 from the other end of the shaft cylinder 1 when the core shaft 5 rotates clockwise or counterclockwise, the adjusting device 40 being able to pre-tighten and rectify the workpiece, the adjusting device 40 comprising an adjusting platform 41 fixedly arranged at one end of the shaft cylinder 1 and an adjusting cover 42 rotatably arranged outside the adjusting platform 41, anti-skid lines 49 circumferentially arranged on the adjusting cover 42 to increase the friction and prevent the hand from slipping when adjusting, a adjusting rod 43 fixedly arranged at the center of the adjusting cover 42 and screwed into the center of the core shaft 5, the adjusting rod 43 being able to retract or extend the core shaft 5, an adjusting block 50 arranged at the end of the core shaft 5 away from the adjusting cover 42, the diameter of the adjusting block 50 being smaller than the outer diameter of the inner core sleeve 6 and larger than the inner diameter of the inner core sleeve 6, the adjusting block 50 being able to prevent the core shaft from falling into the inner core sleeve 6 due to excessive rectification, the adjusting device 40 further comprising sixteen evenly arranged limiting grooves 44 circumferentially arranged on the adjusting platform 41 and an adjusting groove 45 penetrating the adjusting cover 42, a steel ball 46 always abutting against one side of the adjusting platform 41, a limiting spring 47 always abutting the steel ball in the limiting groove 44, and a limiting platform 48 fixedly arranged at the end of the adjusting cover 42 away from the shaft head 2, the adjusting cover 42 always rotating outside the adjusting platform 41, the distance between each adjusting groove 45 being fixed,When the adjusting cover 42 rotates, the limiting spring 47 pushes the steel ball 46 against the limiting groove 44, so that the adjusting cover 42 stops for a while when it rotates by a certain distance, so that a certain damping feeling is generated when rotating, the rotating hand feeling is better, and the limiting block 48 fixed on one side of the adjusting cover 42 also provides a fixed point for the limiting spring 47 and the steel ball 46, so that they are always fixed on the adjusting cover 42.

[0040] The beneficial effects of the embodiment are that the mandrel 5 is axially moved by manually rotating the adjusting cover 42 to perform pre-tightening and deviation correction, the workpiece is not easy to be damaged, the adjustment is relatively convenient, and the extension and retraction can be controlled by clockwise and counterclockwise rotation.

[0041] Embodiment 2 Figures 5-11 The adjusting deviation gas expansion shaft gas expansion shaft shown comprises a shaft cylinder 1, shaft heads 2 sealing the shaft cylinder 1 are arranged at both ends of the shaft cylinder 1, gas charging and discharging openings 3 are arranged on the two shaft heads 2, a hollow mandrel 5 is arranged in the shaft cylinder 1, an inner core sleeve 6 is further arranged in the shaft cylinder 1, the mandrel 5 passes through the two shaft heads 2 and is arranged in the inner core sleeve 6, an adjusting fixed block 11 is further fixed on the mandrel 5, the inner core sleeve 6 is provided with an adjusting hole 12 for the axial movement of the adjusting fixed block 11, anti-skid protrusions 13 abutting against the shaft cylinder 1 are arranged on the inner core sleeve 6 close to the two shaft heads 2, two circles of sealing grooves 14 are arranged on the two ends of the contact surface between the mandrel 5 and the inner core sleeve 6, a sealing ring 15 is arranged in each sealing groove 14, six interlocked slats 21 are arranged between the two shaft heads 2, air chambers 22 are further arranged between the slats 21 and the shaft cylinder 1, the shaft heads 2 and the connected ends of the slats 21 are further provided with anti-dropping devices 30 preventing the slats 21 from dropping out after the slats 21 expand after the air chambers 22 are filled with air, the anti-dropping devices 30 comprise six anti-dropping blocks 31 arranged on the two shaft heads 2 corresponding to the number of the slats 21 and preventing the slats 21 from dropping out and six missing grooves 34 arranged on the slats corresponding to the positions of the anti-dropping blocks 31, the anti-dropping blocks 31 can prevent the slats 21 from directly popping out when expanding, thereby increasing the safety of the product, one end of each adjacent slat 21 is provided with an anti-dropping groove 32, the other end is provided with an anti-dropping tooth 33 interlocked with the anti-dropping groove 32, a gap is always present between the anti-dropping tooth 33 and the anti-dropping groove 32, the gap can still keep the slats 21 in the interlocked state when the slats 21 expand, so that the slats 21 will not be scattered, and the slats 21 will not be broken due to being fixed too tightly, one end of the mandrel 5 is further provided with an adjusting device 40 controlling the uniform extension or retraction of the mandrel 5 from the other end of the shaft cylinder 1 when rotating clockwise or counterclockwise, the adjusting device 40 can be used to pre-tighten and correct the deviation of the workpiece, the adjusting device 40 comprises an adjusting block 41 fixedly arranged at one end of the shaft cylinder 1, the adjusting block 41 is directly connected with the mandrel 5 and pulls the adjusting block 41, and when the adjusting block 41 is pulled, the mandrel 5 is pulled out of the other end of the shaft cylinder 1, and when the adjusting block 41 is pushed, the mandrel 5 is retracted into the other end of the shaft cylinder 1. Figure 10As shown, anti-skid lines 49 can also be added to the adjusting platform 41, the shape of the adjusting platform 41 can also be directly changed to better fit the hand, or as shown Figure 11 As shown, a recess 51 for placing fingers can be provided on the adjusting platform 41, and the mandrel 5 will move along with the extension and retraction, the mandrel 5 is provided with an adjusting block 50 at the end away from the adjusting cover 42, the diameter of the adjusting block 50 is smaller than the outer diameter of the inner core sleeve 6 and larger than the inner diameter of the inner core sleeve 6, so when the adjusting platform 41 is pulled, the adjusting block 50 will also prevent the mandrel 5 from being directly pulled out of the inner core sleeve 6, and there is also a certain friction between the mandrel 5 and the inner core sleeve 6, so there is also a certain resistance when pushing.

[0042] The beneficial effects of the embodiment are: the mandrel 5 can be directly adjusted in extension and retraction by directly pulling the adjusting platform 41, and because the adjusting block 50 is provided, the mandrel 5 will not be directly pulled out of the inner core sleeve 6 during correction, so that pre-tightening correction can be performed.

[0043] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable and corrective air expansion shaft, comprising a shaft sleeve, with shaft heads sealing the shaft sleeve at both ends, each shaft head having an air filling / draining port, and a hollow mandrel disposed inside the shaft sleeve, characterized in that: The shaft cylinder is also provided with an inner core sleeve, the inner core sleeve is provided with a core shaft penetrating through the two end shaft heads, a plurality of mutually interlocked slats are circumferentially arranged between the two end shaft heads, the slats are also provided with air chambers between the slats and the shaft cylinder, the shaft head and the slat connection end are also provided with anti-disengagement devices for preventing the slats from disengaging after the slats are expanded when the air chambers are inflated, one end of the core shaft is also provided with an adjusting device for controlling the core shaft to uniformly extend or retract from the other end of the shaft cylinder when rotating clockwise or counterclockwise; the adjusting device comprises an adjusting platform fixedly arranged at one end of the shaft cylinder and a rotatable adjusting cover arranged outside the adjusting platform, the center of the adjusting cover is also fixedly provided with an adjusting rod screwed to the center of the core shaft; the core shaft is also fixedly provided with an adjusting fixed block, and the inner core sleeve is provided with an adjusting hole for axial movement of the adjusting fixed block.

2. The self-adjusting, self-correcting pneumatic axle as described in claim 1, wherein: The core shaft is provided with an adjusting block at the end away from the adjusting cover, the diameter of the adjusting block is smaller than the outer diameter of the inner core sleeve and larger than the inner diameter of the inner core sleeve.

3. The self-adjusting and self-correcting pneumatic axle as described in claim 1, wherein: The adjusting device further comprises a plurality of uniformly arranged limiting grooves circumferentially arranged on the adjusting platform and an adjusting groove penetratingly arranged on the adjusting cover, the adjusting groove is integrally provided with a steel ball always abutting against one side of the adjusting platform, a limiting spring always abutting the steel ball in the limiting groove, and a limiting platform fixed to the side of the adjusting cover away from the shaft head.

4. The self-adjusting, self-correcting pneumatic axle of claim 2, wherein: The inner core sleeve is provided with anti-slip protrusions abutting against the shaft cylinder near the two end shaft heads.

5. The self-adjusting and self-correcting pneumatic shaft as claimed in claim 2, wherein: The adjusting cover is circumferentially provided with anti-slip lines.

6. The self-adjusting, self-correcting pneumatic axle as described in claim 2, wherein: The core shaft and the inner core sleeve are provided with a plurality of axially arranged sealing grooves on the contact surface, and the sealing grooves are provided with sealing rings.

7. A self-adjusting and self-correcting pneumatic shaft as claimed in any one of claims 1 to 5, wherein: The anti-disengagement device comprises anti-disengagement blocks arranged on the two end shaft heads corresponding to the number of slats to prevent the slats from disengaging, and missing grooves arranged on the slats corresponding to the positions of the anti-disengagement blocks.

8. A compensating bellows as defined in claim 7, characterized in that: The end of the adjacent slats mutually interlocked is provided with an anti-disengagement groove, the other end is provided with an anti-disengagement tooth mutually interlocked with the anti-disengagement groove, and a gap always exists between the anti-disengagement tooth and the anti-disengagement groove.

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