CN107650077A - A kind of bidirectional spring pre-tightening mechanism - Google Patents
A kind of bidirectional spring pre-tightening mechanism Download PDFInfo
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- CN107650077A CN107650077A CN201710941388.9A CN201710941388A CN107650077A CN 107650077 A CN107650077 A CN 107650077A CN 201710941388 A CN201710941388 A CN 201710941388A CN 107650077 A CN107650077 A CN 107650077A
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- inner barrel
- outer cylinder
- cylinder body
- limited block
- piston
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
- B25B27/302—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs
- B25B27/304—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs by compressing coil springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
A kind of bidirectional spring pre-tightening mechanism of the present invention, belongs to technical field of mechanical transmission.Wherein outer cylinder body (1) is fixed support structure, inner barrel (2) can slide axially in outer cylinder body (1), compression spring (3) is compressed by pressing plate (5), possesses certain pretightning force, limited block one (4A) is arranged on pressing plate (5), can slided in the chute of outer cylinder body (1) and inner barrel (2), limited block two (4B) is arranged on inner barrel (2), pressing plate (5) is bonded gapless with piston (6), piston (6) is movement output ends, can stretch or compress motion.After compression spring (3) is preset certain pressure when mounted, no matter piston (6) compresses or stretches, all need to overcome the pretightning force of formed objects, Single spring is set to possess the function of two-way pretension, compared with the two-way pre-tightening mechanism of tradition, have accurate pretightning force, compact-sized, compact, it is easy to process, cost is cheap the characteristics of.
Description
Technical field
A kind of bidirectional spring pre-tightening mechanism of the present invention, belongs to technical field of mechanical transmission.
Background technology
Spring mechanism is the critical function part of mechanical transmission fields, utilizes the pretension characteristic of spring, it is possible to achieve power
Transmit the storage with energy.In many application scenarios, moving component needs to do straight reciprocating motion, it is desirable to which spring mechanism possesses just
The pretension function of anti-both direction.And in traditional two-way pretension spring mechanism, two need to be separately mounted to by least two spring
Two-way pretension could be realized on individual direction, the theory structure has its shortcoming as follows：Part is more, and theory structure is complicated, reliability compared with
It is low；Cost is high；Bulking value is big, is not suitable for the occasion that overall space is compact and weight demands are harsh；Both direction spring
Pretightning force is difficult to accurate consistent；Processing and assembly difficulty are big.
The content of the invention
The purpose of the present invention is：Overall space is compact, lightweight requirements are strict, and take into account processing and material cost control
The application scenario of system, in order to overcome the weak point of traditional bidirectional spring pre-tightening mechanism, present invention employs a kind of principle it is exquisite,
The two-way pre-tightening mechanism of the Single spring of compact structure.
Technical scheme：
A kind of bidirectional spring pre-tightening mechanism, the structure include outer cylinder body 1, inner barrel 2, compression spring 3, limited block one
4A, the 4B of limited block two, pressing plate 5, piston 6；
Outer cylinder body 1 is the hollow cylinder that side carries opening, and axial slide is provided with the inside of the barrel of outer cylinder body 1；
Inner barrel 2 is the hollow cylinder that side carries opening, and axial slide, inner cylinder are provided with the inside of the barrel of inner barrel 2
The trough width of body 2 is consistent with the trough width of outer cylinder body 1, and the track length of inner barrel 2 is more than the track length of outer cylinder body 1；Inner barrel 2 is pacified
Loaded in outer cylinder body 1, the chute of inner barrel 2 is corresponding with the position of the chute of outer cylinder body 1, and the opening direction and outer barrel of inner barrel 2
The opening direction of body 1 is consistent；Barrel medial gap on the outside of the barrel of inner barrel 2 with outer cylinder body 1 coordinates, and inner barrel 2 can be
The axial direction of the interior edge outer cylinder body 1 of outer cylinder body 1 moves reciprocatingly；
The inside of inner barrel 2 is axially placed with compression spring 3；
Pressing plate 5 is arranged on the inside of inner barrel 2, and an end face of pressing plate 5 is pressed in compression spring 3, the side of pressing plate 5 with
The barrel medial gap of inner barrel 2 coordinates, and pressing plate 5 can move reciprocatingly in the axial direction of the interior edge inner barrel 2 of inner barrel 2；
Limited block one 4A, the 4A of limited block one are fixedly installed on the periphery of pressing plate 5 and stretches into outer cylinder body 1, inner barrel 2 simultaneously
Chute in, the 4A of limited block one moves reciprocatingly in the axial direction of outer cylinder body 1, the chute interior edge inner barrel 2 of inner barrel 2；
Piston 6 is arranged on the inside of inner barrel 2, and an end face of piston 6 is pressed on another end face of pressing plate 5, piston 6
Coordinate with the barrel medial gap of inner barrel 2, piston 6 can move reciprocatingly in the axial direction of the interior edge inner barrel 2 of inner barrel 2；
The 4B of limited block two is fixedly installed on the inside of the barrel of inner barrel 2 and close to the position of opening；The 4B of limited block two and piston 6
Another end face fit；
By piston 6 to the bottom of inner barrel 2 promote when, piston 6 promote pressing plate 5 so that compression spring 3 is further compressed；
By piston 6 to the opening direction of inner barrel 2 pull when, piston 6 pulls inner barrel 2 to outer cylinder body by the 4B of limited block two
1 opening direction motion, the 4A of limited block one limit pressing plate 5 and moved to the opening direction away from outer cylinder body 1 so that compression spring 3
Further compression.
The axial slide of the outer cylinder body 1 is U-shaped chute.
The axial slide of the inner barrel 2 is U-shaped chute.
The axial slide of the outer cylinder body 1 and inner barrel 2 is 2.
The 4A of limited block one, the 4B of limited block two are pin or screw.
The present invention has the advantage that and beneficial effect：A kind of bidirectional spring pre-tightening mechanism of the present invention, it is real using single spring
Fully equalize two-way pretension is showed, principle is exquisite, reduces number of components, reduces the complexity of mechanism, improves reliable
Property；Secondly, dual spring is instead of with Single spring, the overall volume of mechanism, weight is significantly reduced, it is tight more suitable for space
Gather and occasion that weight demands are harsh；Again, this bidirectional spring pre-tightening mechanism it is clear in structure, assembling it is simple, it is easy to process manufacture,
Cost is cheap, is advantageous to produce in batches and promotes the use of.
Brief description of the drawings
Fig. 1 is a kind of principle schematic diagram of bidirectional spring pre-tightening mechanism of the present invention.
Wherein, 1- outer cylinder bodies, 2- inner barrels, 3- compression springs, 4A- limited blocks one, 4B- limited blocks two, 5- pressing plates, 6- live
Plug.
Embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings.
A kind of bidirectional spring pre-tightening mechanism, the structure include outer cylinder body 1, inner barrel 2, compression spring 3, limited block one
4A, the 4B of limited block two, pressing plate 5, piston 6；
Outer cylinder body 1 is the hollow cylinder that side carries opening, and axial slide is provided with the inside of the barrel of outer cylinder body 1；
Inner barrel 2 is the hollow cylinder that side carries opening, and axial slide, inner cylinder are provided with the inside of the barrel of inner barrel 2
The trough width of body 2 is consistent with the trough width of outer cylinder body 1, and the track length of inner barrel 2 is more than the track length of outer cylinder body 1；Inner barrel 2 is pacified
Loaded in outer cylinder body 1, the chute of inner barrel 2 is corresponding with the position of the chute of outer cylinder body 1, and the opening direction and outer barrel of inner barrel 2
The opening direction of body 1 is consistent；Barrel medial gap on the outside of the barrel of inner barrel 2 with outer cylinder body 1 coordinates, and inner barrel 2 can be
The axial direction of the interior edge outer cylinder body 1 of outer cylinder body 1 moves reciprocatingly；
The inside of inner barrel 2 is axially placed with compression spring 3, and the both ends of compression spring 3 polish, in the inside quilt of inner barrel 2
It will not be verted during compression；
Pressing plate 5 is arranged on the inside of inner barrel 2, and an end face of pressing plate 5 is pressed in compression spring 3, the side of pressing plate 5 with
The barrel medial gap of inner barrel 2 coordinates, and pressing plate 5 can move reciprocatingly in the axial direction of the interior edge inner barrel 2 of inner barrel 2；
2 symmetrical 4A of limited block one are fixedly installed on the periphery of pressing plate 5,2 4A of limited block one stretch into outer simultaneously
Cylinder 1, inner barrel 2 chute in, 2 4A of limited block one can be in outer cylinder body 1, the axle of the chute interior edge inner barrel 2 of inner barrel 2
To moving reciprocatingly；
Piston 6 is arranged on the inside of inner barrel 2, and an end face of piston 6 is pressed on another end face of pressing plate 5, piston 6
Coordinate with the barrel medial gap of inner barrel 2, piston 6 can move reciprocatingly in the axial direction of the interior edge inner barrel 2 of inner barrel 2；
2 4B of limited block two are fixedly installed on the inside of the barrel of inner barrel 2 and close to the symmetric position of opening；2 limited blocks
Two 4B and piston 6 another end face fit；
By piston 6 to the bottom of inner barrel 2 promote when, piston 6 promote pressing plate 5 so that compression spring 3 is further compressed；
By piston 6 to the opening direction of cylinder 2 pull when, piston 6 pulls inner barrel 2 to outer cylinder body 1 by the 4B of limited block two
Opening direction motion, the 4A of limited block one limitation opening direction from pressing plate 5 to outer cylinder body 1 move so that compression spring 3 is further
Compression.
The axial slide of the outer cylinder body 1 is U-shaped chute.
The axial slide of the inner barrel 2 is U-shaped chute.
The axial slide of the outer cylinder body 1 and inner barrel 2 is 2.
The 4A of limited block one, the 4B of limited block two are pin or screw.
Embodiment one
A kind of bidirectional spring pre-tightening mechanism, structure include outer cylinder body 1, inner barrel 2, compression spring 3, the 4A of limited block one, limit
The position 4B of block two, pressing plate 5, piston 6；
Outer cylinder body 1 be side carry opening hollow cylinder, external diameter 20mm, axial length 17.5mm, internal orifice dimension 17mm, hole
Deep 16mm；Away from symmetrical 2 axial U-shaped chutes are provided with the 4mm of bottom, trough width 2mm is long for the barrel inner side of outer cylinder body 1
Spend 6mm；
Inner barrel 2 be side carry opening hollow cylinder, external diameter 16.5mm, axial length 14.5mm, internal orifice dimension 14mm,
Hole depth 13.5mm；Away from being provided with symmetrical 2 axial U-shaped chutes, trough width at the 3mm of bottom on the inside of the barrel of inner barrel 2
2mm, length 7mm；
Inner barrel 2 is installed in outer cylinder body 1, and the chute of inner barrel 2 is corresponding with the position of the chute of outer cylinder body 1, and inner barrel 2
Opening direction it is consistent with the opening direction of outer cylinder body 1；Inner barrel 2 can be done back and forth in the axial direction of the interior edge outer cylinder body 1 of outer cylinder body 1
Motion；
The inside of inner barrel 2 is axially placed with compression spring 3；Compression spring 3 external diameter 12.8mm, free height 6.3mm, just
Spend 1.95N/mm；
Pressing plate 5 is arranged on the inside of inner barrel 2, and the external diameter 13.5mm of pressing plate 5, height 3mm, an end face of pressing plate 5 is pressed in
In compression spring 3；
2 symmetrical 4A of limited block one, the 4A diameter 2mm of limited block one are fixedly installed on the periphery of pressing plate 5, it is prominent high
2mm is spent, 2 4A of limited block one are stretched into the chute of outer cylinder body 1, inner barrel 2 simultaneously respectively, and the 4A of limited block one is in outer cylinder body 1, interior
The axial direction of the chute interior edge inner barrel 2 of cylinder 2 moves reciprocatingly；
Piston 6 is arranged on the inside of inner barrel 2, piston 6 external diameter 13.5mm, height 2.5mm, with diameter 4mm, long 7mm
Guide rod, an end face of piston 6 is pressed on another end face of pressing plate 5, and piston 6 can be in the interior edge inner barrel 2 of inner barrel 2
Axially move reciprocatingly；
2 4B of limited block two are fixedly installed on the inside of the barrel of inner barrel 2 and close to the symmetric position of opening, the 4B of limited block two
Diameter 2mm, projecting height 2mm；The 4B of limited block two and piston 6 another end face fit；
By piston 6 to the bottom of inner barrel 2 promote when, piston 6 promote pressing plate 5 so that compression spring 3 is further compressed；
By piston 6 to the opening direction of inner barrel 2 pull when, piston 6 pulls inner barrel 2 to outer cylinder body by the 4B of limited block two
1 opening direction motion, the 4A of limited block one limit pressing plate 5 and moved to the opening direction away from outer cylinder body 1 so that compression spring 3
Further compression.
Embodiment two
A kind of bidirectional spring pre-tightening mechanism, structure include outer cylinder body 1, inner barrel 2, compression spring 3, the 4A of limited block one, limit
The position 4B of block two, pressing plate 5, piston 6；
Outer cylinder body 1 be side carry opening hollow cylinder, external diameter 35mm, axial length 26mm, internal orifice dimension 31mm, hole depth
24mm；Away from being provided with equally distributed 3 axial U-shaped chutes, trough width at the 6.5mm of bottom on the inside of the barrel of outer cylinder body 1
3mm, length 9mm；
Inner barrel 2 be side carry opening hollow cylinder, external diameter 30.5mm, axial length 23mm, internal orifice dimension 26.5mm,
Hole depth 21mm；Away from being provided with equally distributed 3 axial U-shaped chutes, trough width at the 4mm of bottom on the inside of the barrel of inner barrel 2
2mm, length 11mm；
Inner barrel 2 is installed in outer cylinder body 1, and the chute of inner barrel 2 is corresponding with the position of the chute of outer cylinder body 1, and inner barrel 2
Opening direction it is consistent with the opening direction of outer cylinder body 1；Inner barrel 2 can be done back and forth in the axial direction of the interior edge outer cylinder body 1 of outer cylinder body 1
Motion；
The inside of inner barrel 2 is axially placed with compression spring 3；Compression spring 3 external diameter 22mm, free height 9.4mm, rigidity
10.33N/mm；
Pressing plate 5 is arranged on the inside of inner barrel 2, and the external diameter 26mm of pressing plate 5, height 3.5mm, an end face of pressing plate 5 is pressed in
In compression spring 3；
3 equally distributed 4A of limited block one, the 4A diameter 3mm of limited block one are fixedly installed on the periphery of pressing plate 5, is dashed forward
Go out height 4mm, 2 4A of limited block one respectively while stretch into the chute of outer cylinder body 1, inner barrel 2, the 4A of limited block one is in outer cylinder body
1st, the axial direction of the chute interior edge inner barrel 2 of inner barrel 2 moves reciprocatingly；
Piston 6 is arranged on the inside of inner barrel 2, piston 6 external diameter 26mm, height 3.5mm, with diameter 7mm, long 8mm
Guide rod, an end face of piston 6 are pressed on another end face of pressing plate 5, and piston 6 can be in the axle of the interior edge inner barrel 2 of inner barrel 2
To moving reciprocatingly；
3 4B of limited block two are uniformly arranged on the inside of the barrel of inner barrel 2 and close to the position of opening, the 4B diameters of limited block two
3mm, projecting height 3mm；The 4B of limited block two and piston 6 another end face fit；
By piston 6 to the bottom of inner barrel 2 promote when, piston 6 promote pressing plate 5 so that compression spring 3 is further compressed；
By piston 6 to the opening direction of inner barrel 2 pull when, piston 6 pulls inner barrel 2 to outer cylinder body by the 4B of limited block two
1 opening direction motion, the 4A of limited block one limit pressing plate 5 and moved to the opening direction away from outer cylinder body 1 so that compression spring 3
Further compression.
Claims (5)
1. a kind of bidirectional spring pre-tightening mechanism, it is characterised in that the structure includes outer cylinder body (1), inner barrel (2), compresses bullet
Spring (3), limited block one (4A), limited block two (4B), pressing plate (5), piston (6)；
Outer cylinder body (1) is the hollow cylinder that side carries opening, and axial slide is provided with the inside of the barrel of outer cylinder body (1)；
Inner barrel (2) is the hollow cylinder that side carries opening, and axial slide, inner cylinder are provided with the inside of the barrel of inner barrel (2)
Body (2) trough width is consistent with outer cylinder body (1) trough width, and inner barrel (2) track length is more than outer cylinder body (1) track length；
Inner barrel (2) is installed in outer cylinder body (1), and inner barrel (2) chute is corresponding with the position of outer cylinder body (1) chute, and inner barrel
(2) opening direction is consistent with the opening direction of outer cylinder body (1)；On the outside of the barrel of inner barrel (2) and in the barrel of outer cylinder body (1)
Side clearance coordinates, and inner barrel (2) can move reciprocatingly in the axial direction of outer cylinder body (1) interior edge outer cylinder body (1)；
The inside of inner barrel (2) is axially placed with compression spring (3)；
Pressing plate (5) is arranged on the inside of inner barrel (2), and an end face of pressing plate (5) is pressed in compression spring (3), pressing plate (5)
Side and the barrel medial gap of inner barrel (2) coordinate, and pressing plate (5) can be done in the axial direction of inner barrel (2) interior edge inner barrel (2)
Move back and forth；
It is fixedly installed limited block one (4A) on the periphery of pressing plate (5), limited block one (4A) while stretches into outer cylinder body (1), interior
In the chute of cylinder (2), limited block one (4A) is done in the axial direction of outer cylinder body (1), the chute interior edge inner barrel (2) of inner barrel (2)
Move back and forth；
Piston (6) is arranged on the inside of inner barrel (2), and an end face of piston (6) is pressed on another end face of pressing plate (5),
The barrel medial gap of piston (6) and inner barrel (2) coordinates, and piston (6) can be in the axle of inner barrel (2) interior edge inner barrel (2)
To moving reciprocatingly；
Limited block two (4B) is fixedly installed on the inside of inner barrel (2) barrel and close to the position of opening；Limited block two (4B) is with living
Another end face of plug (6) fits；
By piston (6) to inner barrel (2) bottom promote when, piston (6) promote pressing plate (5), and then cause compression spring (3) enter one
Step compression；
By piston (6) to inner barrel (2) opening direction pull when, piston (6) by limited block two (4B) pull inner barrel (2) to
The opening direction motion of outer cylinder body (1), limited block one (4A) limitation pressing plate (5) move to the opening direction of outer cylinder body (1), and then
So that compression spring (3) is further compressed.
A kind of 2. bidirectional spring pre-tightening mechanism according to claim 1, it is characterised in that the axial direction of the outer cylinder body (1)
Chute is U-shaped chute.
A kind of 3. bidirectional spring pre-tightening mechanism according to claim 1 or 2, it is characterised in that the axle of the inner barrel (2)
It is U-shaped chute to chute.
A kind of 4. bidirectional spring pre-tightening mechanism according to claim 1 or 2, it is characterised in that the outer cylinder body (1) and interior
The axial slide of cylinder (2) is 2.
A kind of 5. bidirectional spring pre-tightening mechanism according to claim 1 or 2, it is characterised in that：The limited block one (4A),
Limited block two (4B) is pin or screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710941388.9A CN107650077A (en) | 2017-10-11 | 2017-10-11 | A kind of bidirectional spring pre-tightening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710941388.9A CN107650077A (en) | 2017-10-11 | 2017-10-11 | A kind of bidirectional spring pre-tightening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107650077A true CN107650077A (en) | 2018-02-02 |
Family
ID=61116704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710941388.9A Pending CN107650077A (en) | 2017-10-11 | 2017-10-11 | A kind of bidirectional spring pre-tightening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107650077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561346A (en) * | 2019-07-24 | 2019-12-13 | 富曜半导体(昆山)有限公司 | spring positioning chuck assembling and disassembling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219490B1 (en) * | 1985-10-18 | 1991-04-24 | Walter Stöller | Mechanical sealing unit |
| CN201136516Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Barrel-type integrate buffer for pulling-pressing conversion |
| CN105643505A (en) * | 2015-12-30 | 2016-06-08 | 苏州林信源自动化科技有限公司 | Mounting clamping device |
| CN106240596A (en) * | 2015-06-12 | 2016-12-21 | 沃依特专利有限责任公司 | Pulling force/impact attenuation device |
| CN205950650U (en) * | 2016-07-01 | 2017-02-15 | 国网新疆电力公司昌吉供电公司 | Prevent outer broken precaution device butterfly nut handling device |
| CN206320217U (en) * | 2016-12-28 | 2017-07-11 | 人本集团有限公司 | Cartridge type buffering loading cylinder |
-
2017
- 2017-10-11 CN CN201710941388.9A patent/CN107650077A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219490B1 (en) * | 1985-10-18 | 1991-04-24 | Walter Stöller | Mechanical sealing unit |
| CN201136516Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Barrel-type integrate buffer for pulling-pressing conversion |
| CN106240596A (en) * | 2015-06-12 | 2016-12-21 | 沃依特专利有限责任公司 | Pulling force/impact attenuation device |
| CN105643505A (en) * | 2015-12-30 | 2016-06-08 | 苏州林信源自动化科技有限公司 | Mounting clamping device |
| CN205950650U (en) * | 2016-07-01 | 2017-02-15 | 国网新疆电力公司昌吉供电公司 | Prevent outer broken precaution device butterfly nut handling device |
| CN206320217U (en) * | 2016-12-28 | 2017-07-11 | 人本集团有限公司 | Cartridge type buffering loading cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561346A (en) * | 2019-07-24 | 2019-12-13 | 富曜半导体(昆山)有限公司 | spring positioning chuck assembling and disassembling device |
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Application publication date: 20180202 |
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