CN113775661B - Tile type expansion shaft with controllable pressure - Google Patents
Tile type expansion shaft with controllable pressure Download PDFInfo
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- CN113775661B CN113775661B CN202111054845.5A CN202111054845A CN113775661B CN 113775661 B CN113775661 B CN 113775661B CN 202111054845 A CN202111054845 A CN 202111054845A CN 113775661 B CN113775661 B CN 113775661B
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- driving
- tile
- shaft
- fan
- expansion
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- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000006378 damage Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/0829—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial loading of both hub and shaft by an intermediate ring or sleeve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Finishing Walls (AREA)
Abstract
The invention relates to the technical field of expansion shafts, and discloses a tile-type expansion shaft with controllable pressure, which comprises an inner shaft in transmission connection with an external power source, wherein the outer side wall of the inner shaft is provided with a plurality of fan-shaped tiles which can be spliced into a cylinder, and the middle part of each fan-shaped tile is provided with a chute facing the shaft. The tile-type expansion shaft with controllable pressure can be suitable for more application occasions, meanwhile, the expansion force can be adjusted, meanwhile, the situation that the acting force is too large and the core tube is damaged by expansion can be avoided, on the other hand, when unexpected conditions occur, the force can be automatically unloaded, hard damage is avoided, the equipment is ensured to be intact, and secondly, when the expansion shaft works, part of the expansion force can be converted into the centrifugal force of the fan-shaped tile, namely, the stress between the fixed driving teeth and the driven teeth is small, damage and looseness are not easy to occur, and in terms of the structure, the driving teeth can be always kept close to the driven teeth, looseness is not generated, and the normal work of the expansion shaft is always kept.
Description
Technical Field
The invention relates to the technical field of expansion shafts, in particular to a tile-type expansion shaft with controllable pressure.
Background
The surface of the expansion shaft can be raised for locking the outer tubular part, and is widely applied to packaging printing, paper-making films and lithium battery equipment.
The expansion shaft has hydraulic, pneumatic and mechanical structures, the pneumatic and hydraulic structures are relatively simple, but the requirements on the tightness are high, and additional equipment is needed to provide pressure, so that the trend of adopting the mechanical expansion shaft is common in the industry at present, but the fixing force provided in the mechanical expansion shaft is single and not adjustable, if the strength applied by the expansion block is insufficient, the effect of fixing the core tube on the expansion shaft cannot be realized, and if the strength applied by the expansion block is too large, the inner wall of the core tube is possibly damaged due to the too large bearing strength. On the other hand, if the load applied to the expansion shaft by the core tube exceeds the load of the expansion block due to accidental factors such as machine failure, vibration, etc., the hard destruction of the expansion block and the related mechanism members is easily caused, resulting in a large loss.
Secondly, the mechanical components in the expansion shaft fix the expansion tiles, and after long-term use, the mechanical components are easy to loose, so that the expansion shaft cannot fix the core tube.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a technical scheme of a tile type expansion shaft with controllable pressure, which has the advantages of adjustable staring force, small bearing force of a fixing structure and the like, and solves the problems of the background technology.
The invention provides the following technical scheme: the utility model provides a controllable tile formula inflation axle of pressure, includes the interior axle of being connected with external power source transmission, the lateral wall of interior axle is equipped with a plurality of fan-shaped tiles that can splice into the cylinder, the middle part of fan-shaped tile is equipped with the spout towards the axle, the outer wall of interior axle is equipped with the connection piece that corresponds with the spout, the both ends of fan-shaped tile all have the regulating plate through slider swing joint, be equipped with the angle adjustment cover between interior axle and the regulating plate, the inner ring of regulating plate is equipped with driven tooth, the lateral wall of angle adjustment cover is equipped with scalable driving tooth, and when the relative rotation of regulating plate and angle adjustment cover, driven tooth can drive the shrinkage of driving tooth, the shrinkage force of driving tooth is adjustable, and the driving tooth shrink breaks away from with driven tooth after the top of driven tooth, the junction of regulating plate and slider is equipped with the adjustment groove.
Preferably, the adjustment groove is inclined outward in the rotation direction of the inner shaft.
Preferably, the angle adjusting sleeve comprises a driving pipe and an adjusting inner pipe, wherein the driving pipe is in threaded connection with the adjusting inner pipe, the driving teeth penetrate through the side wall of the driving pipe and are movably connected with the side wall of the driving pipe, the bottoms of the driving teeth are axially connected with a moving pipe through wedge blocks, and a spring is arranged between the moving pipe and the adjusting inner pipe.
Preferably, the side wall of the inner shaft is movably connected with a positioning column, the end part of the positioning column can be tightly attached to the inner wall of the angle adjusting sleeve, a loose rod is movably connected inside the end of the inner shaft, and a cushion block corresponding to the positioning column is arranged on the side wall of the loose rod.
Preferably, the inner wall of the adjusting inner tube is provided with a limit groove, the end face of the positioning column is provided with wedge teeth corresponding to the limit groove, one side of each wedge tooth is provided with an inclined plane, and the inclined plane faces the screwing direction of the adjusting inner tube.
The invention has the following beneficial effects:
1. The tile-type expansion shaft with controllable pressure can provide adjustable expansion acting force, can be suitable for more application occasions, can prevent the acting force from being too large and the core tube from being damaged by expansion while ensuring fixation, and can automatically realize force unloading when unexpected conditions occur, avoid hard damage and ensure the integrity of equipment.
2. The tile-type expansion shaft with controllable pressure can convert a part of the expanding acting force into the centrifugal force of the fan-shaped tile when in operation, namely, the stress between the fixed driving teeth and the driven teeth is small, the damage and the looseness are not easy to occur, and secondly, in terms of the structure, the driving teeth can be always kept close to the driven teeth, the looseness is not generated, and the normal operation of the expansion shaft is always kept.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side cross-sectional view of the present invention;
FIG. 3 is a schematic view of a partial structure of the present invention;
FIG. 4 is a schematic view of the structure of the angle adjusting sleeve according to the present invention;
FIG. 5 is a schematic view of a loose lever according to the present invention;
fig. 6 is a schematic view of the cooperation of the loose lever and the angle adjusting sleeve in the present invention.
In the figure: 1. an inner shaft; 2. sector tiles; 3. a chute; 4. a connecting sheet; 5. an adjusting plate; 6. a slider; 7. an adjustment groove; 8. driven teeth; 9. an angle adjusting sleeve; 91. a driving tube; 92. adjusting the inner tube; 93. a moving tube; 94. a spring; 10. a drive tooth; 11. positioning columns; 12. loosening the rod; 13. a cushion block; 14. wedge teeth; 15. and a limit groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 2, a tile-type expansion shaft with controllable pressure comprises an inner shaft 1 in transmission connection with an external power source, wherein the outer side wall of the inner shaft 1 is provided with a plurality of fan-shaped tiles 2 which can be spliced into a cylinder, the inner shaft 1 and the fan-shaped tiles 2 are coaxially arranged, the middle part of the fan-shaped tiles 2 is provided with a sliding groove 3 facing the shaft, the outer wall of the inner shaft 1 is provided with a connecting sheet 4 corresponding to the sliding groove 3, the connecting sheet 4 corresponds to the fan-shaped tiles 2 one by one, the fan-shaped tiles 2 slide along the connecting sheet 4, the diameter of the cylinder formed by the fan-shaped tiles 2 is changed, the inner wall of the core barrel is tightly attached, referring to fig. 1, two ends of the fan-shaped tiles 2 are movably connected with an adjusting plate 5 through sliding pieces 6, the sliding pieces 6 are formed by threaded sliding rods, nuts and gaskets, two sides of the sliding rods are fastened through the nuts and the gaskets, two side end faces of the adjusting plate 5 are clamped, the adjusting plate 5 and the nuts and gaskets of the gaskets at two sides keep a proper friction force, so that the adjusting plate 5 and the sliding piece 6 can be fixed when no external force is applied, referring to fig. 3, an angle adjusting sleeve 9 is arranged between the inner shaft 1 and the adjusting plate 5, the angle adjusting sleeve 9 is sleeved on the outer wall of the inner shaft 1 and can slide relatively to the inner shaft 1, a driven tooth 8 is arranged on the inner ring of the adjusting plate 5, a telescopic driving tooth 10 is arranged on the side wall of the angle adjusting sleeve 9, when the adjusting plate 5 and the angle adjusting sleeve 9 rotate relatively, the driven tooth 8 can drive the driving tooth 10 to shrink, the shrinkage force of the driving tooth 10 can be adjusted, the driving tooth 10 is separated from the driven tooth 8 after shrinking to the top of the driven tooth 8, when the acting force between the driving tooth 10 and the driven tooth 8 is larger than the shrinkage force, the driving tooth 10 slides along the driven tooth 8, an adjusting groove 7 is arranged at the joint of the adjusting plate 5 and the sliding piece 6, when the adjusting plate 5 rotates relatively, the fan-shaped tiles 2 are driven to move outwards or inwards, and the diameter of the cylinder surrounded by the fan-shaped tiles 2 is changed.
Wherein, along the rotation direction of the inner shaft 1, the adjusting groove 7 is inclined to the outside, and when the inner shaft 1 rotates, the rotating acting force is partially converted into the opening force of the fan-shaped tile 2.
Referring to fig. 4, the angle adjusting sleeve 9 includes a driving tube 91 and an adjusting inner tube 92, part of the positions of the driving tube 91 and the adjusting inner tube 92 are tightly attached to the side wall of the inner shaft 1 to ensure stability, the driving tube 91 and the adjusting inner tube 92 are connected by threads, the driving teeth 10 penetrate through the side wall of the driving tube 91 and are movably connected with the side wall of the driving tube 91, the bottom of the driving teeth 10 is axially connected with a moving tube 93 through a wedge block, when the driving teeth 10 retract, the moving tube 93 is pushed to move by interaction with the moving tube 93, a spring 94 is arranged between the moving tube 93 and the adjusting inner tube 92, the adjusting inner tube 92 rotates, the elasticity of the spring 94 changes by screwing in or screwing out, and the acting force required by the retraction of the driving teeth 10 is controlled.
Referring to fig. 5, the side wall of the inner shaft 1 is movably connected with a positioning column 11 whose end can be tightly attached to the inner wall of the angle adjusting sleeve 9, the positioning column 11 can limit the rotation of the angle adjusting sleeve 9, the positioning column 11 is provided with two groups of positioning columns 11 corresponding to the driving tube 91 and the adjusting inner tube 92 respectively, the end inside the inner shaft 1 is movably connected with a loose rod 12, the loose rod 12 penetrates through the end face of the inner shaft 1, the installation and the control are convenient, the side wall of the loose rod 12 is provided with a cushion block 13 corresponding to the positioning column 11, one side of the cushion block 13 is provided with an inclined plane, when the loose rod 12 advances, the positioning column 11 is driven to extend and tightly attach to the driving tube 91 or the adjusting inner tube 92, so that the angle adjusting sleeve 9 does not rotate relative to the inner shaft 1, on one hand, the angle adjusting sleeve 9 is prevented from driving the adjusting plate 5 to rotate, the acting force between the adjusting tube and the core tube is reduced, on the other hand, the relative rotation of the driving tube 91 and the adjusting inner tube 92 is prevented, and the retractive force of the driving tooth 10 is changed.
Referring to fig. 6, the inner wall of the adjusting inner tube 92 is provided with a limit groove 15, the end surface of the positioning column 11 is provided with wedge teeth 14 corresponding to the limit groove 15, one side of the wedge teeth 14 is provided with an inclined plane, and when the inclined plane faces the screwing direction of the adjusting inner tube 92, the loosening rod 12 is not required to be unscrewed to separate the positioning column 11 from the angle adjusting sleeve 9 when the force is not required to be increased, the driving tube 91 or the adjusting inner tube 92 can be selected, and the convenience of use is improved.
The working principle and the working flow of the invention are as follows:
The core is sleeved on the expansion shaft, the inner adjusting pipes 92 at the two ends are rotated, the elasticity of the adjusting springs 94 is adjusted, the force needed by retraction of the driving teeth 10 is controlled, the whole angle adjusting sleeve 9 is rotated later, the driving teeth 10 drive the adjusting plate 5 to rotate, the fan-shaped tiles 2 are gradually opened to prop up the inner wall of the core pipe tightly, after the propping-up acting force reaches a set value, the driving teeth 10 retract and cannot rotate on the driving adjusting plate 5, so that the expanding acting force is prevented from being overlarge, and meanwhile, the unloading force can be realized when the unexpected instant acting force is larger.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a package does not have other elements listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A pressure-controllable tile-type expansion shaft, comprising an inner shaft (1) in driving connection with an external power source, characterized in that: the utility model discloses a fan-shaped tile that can splice into cylinder, the lateral wall of interior axle (1) is equipped with fan-shaped tile (2) of a plurality of, the middle part of fan-shaped tile (2) is equipped with spout (3) towards the axle, the outer wall of interior axle (1) is equipped with connection piece (4) that correspond with spout (3), the both ends of fan-shaped tile (2) all have regulating plate (5) through slider (6) swing joint, be equipped with angle adjustment cover (9) between interior axle (1) and regulating plate (5), the inner ring of regulating plate (5) is equipped with driven tooth (8), the lateral wall of angle adjustment cover (9) is equipped with scalable driving tooth (10), and during the relative rotation of regulating plate (5) and angle adjustment cover (9), driven tooth (8) can drive driving tooth (10) shrink, the shrinkage force of driving tooth (10) is adjustable, and drive tooth (10) shrink to follow driven tooth (8) back and break away from, regulating plate (5) are equipped with adjustment groove (7) with the junction of slider (6).
2. The pressure controllable tile expansion shaft of claim 1, wherein: the adjustment groove (7) is inclined outward in the rotation direction of the inner shaft (1).
3. The pressure controllable tile expansion shaft of claim 1, wherein: the angle adjusting sleeve (9) comprises a driving pipe (91) and an adjusting inner pipe (92), the driving pipe (91) is in threaded connection with the adjusting inner pipe (92), the driving teeth (10) penetrate through the side wall of the driving pipe (91) and are movably connected with the side wall of the driving pipe (91), the bottoms of the driving teeth (10) are axially connected with a moving pipe (93) through wedge blocks, and springs (94) are arranged between the moving pipe (93) and the adjusting inner pipe (92).
4. A pressure controllable tile expansion shaft according to claim 3, wherein: the side wall swing joint of interior axle (1) has terminal can be with reference column (11) of angle adjustment cover (9) inner wall tight, the inside swing joint of end of interior axle (1) has loose pole (12), the lateral wall of loose pole (12) is equipped with cushion (13) corresponding to reference column (11).
5. The pressure controllable tile expansion shaft of claim 4, wherein: the inner wall of the adjusting inner tube (92) is provided with a limit groove (15), the end face of the positioning column (11) is provided with wedge teeth (14) corresponding to the limit groove (15), one side of each wedge tooth (14) is provided with an inclined plane, and the inclined plane faces the screwing direction of the adjusting inner tube (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111054845.5A CN113775661B (en) | 2021-09-09 | 2021-09-09 | Tile type expansion shaft with controllable pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111054845.5A CN113775661B (en) | 2021-09-09 | 2021-09-09 | Tile type expansion shaft with controllable pressure |
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| Publication Number | Publication Date |
|---|---|
| CN113775661A CN113775661A (en) | 2021-12-10 |
| CN113775661B true CN113775661B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111054845.5A Active CN113775661B (en) | 2021-09-09 | 2021-09-09 | Tile type expansion shaft with controllable pressure |
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| CN (1) | CN113775661B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4911376A (en) * | 1988-09-14 | 1990-03-27 | Thompson Johnnie W | Expandable shaft |
| CN201258925Y (en) * | 2008-06-24 | 2009-06-17 | 曹雨 | Elastic expansion block ring double-shaft sleeve suspension cross coupling device |
| CN201309777Y (en) * | 2008-08-15 | 2009-09-16 | 王士川 | Novel expansion shaft |
| CN202214038U (en) * | 2011-08-18 | 2012-05-09 | 苏州金韦尔机械有限公司 | Single-pivot no-core type mechanical expanding mandrel |
| CN204369315U (en) * | 2014-12-19 | 2015-06-03 | 四川创越炭材料有限公司 | A kind of multiple-piece combination reducing gets a cylinder |
| CN104875407A (en) * | 2015-05-14 | 2015-09-02 | 天津恒鸿鑫德机械有限公司 | Automobile tire molding drum with taper expansion device |
| WO2016019919A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
| CN112427666A (en) * | 2020-10-27 | 2021-03-02 | 湖北中油科昊机械制造有限公司 | Expansion mandrel device |
-
2021
- 2021-09-09 CN CN202111054845.5A patent/CN113775661B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4911376A (en) * | 1988-09-14 | 1990-03-27 | Thompson Johnnie W | Expandable shaft |
| CN201258925Y (en) * | 2008-06-24 | 2009-06-17 | 曹雨 | Elastic expansion block ring double-shaft sleeve suspension cross coupling device |
| CN201309777Y (en) * | 2008-08-15 | 2009-09-16 | 王士川 | Novel expansion shaft |
| CN202214038U (en) * | 2011-08-18 | 2012-05-09 | 苏州金韦尔机械有限公司 | Single-pivot no-core type mechanical expanding mandrel |
| WO2016019919A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
| CN204369315U (en) * | 2014-12-19 | 2015-06-03 | 四川创越炭材料有限公司 | A kind of multiple-piece combination reducing gets a cylinder |
| CN104875407A (en) * | 2015-05-14 | 2015-09-02 | 天津恒鸿鑫德机械有限公司 | Automobile tire molding drum with taper expansion device |
| CN112427666A (en) * | 2020-10-27 | 2021-03-02 | 湖北中油科昊机械制造有限公司 | Expansion mandrel device |
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| CN113775661A (en) | 2021-12-10 |
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