CN105179364B - It is a kind of to prevent piston radial rotation, the combined type attachment means of axial movement - Google Patents
It is a kind of to prevent piston radial rotation, the combined type attachment means of axial movement Download PDFInfo
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- CN105179364B CN105179364B CN201510602259.8A CN201510602259A CN105179364B CN 105179364 B CN105179364 B CN 105179364B CN 201510602259 A CN201510602259 A CN 201510602259A CN 105179364 B CN105179364 B CN 105179364B
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- piston
- piston plate
- elastic washer
- blind hole
- circlip
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention provides a kind of combined type attachment means for preventing piston radial rotation, axial movement, mainly include cylinder barrel, piston rod, locking nut, elastic washer, circlip, sealing ring, cushion collar and piston, piston is combined by piston plate A and piston plate B.Be characterized in using the piston rod shaft shoulder, locking nut and containing projection elastic washer and elastic washer torsional deflection prevent piston radial rotation, axial movement.The present invention realizes piston without the drop weight under loss of strength by the piston plate of the hollow circle tube containing pillar；By the projection on elastic washer and circlip, the piston rod shaft shoulder and locking nut, realization prevents piston radial rotation, axial movement；Its mutual impact is prevented by the cushion collar between piston plate.
Description
Technical field
The present invention relates to a kind of combined type attachment means for preventing piston radial rotation, axial movement, more particularly to one kind
By the piston plate of the hollow circle tube containing pillar, realize piston without the drop weight under loss of strength；Pass through elastic washer and elasticity
Projection, the piston rod shaft shoulder and locking nut on back-up ring, realization prevent piston radial rotation, axial movement；By between piston plate
Cushion collar prevent its mutual impact, belong to the technical research field of hydraulic cylinder.
Background technology
Hydraulic energy is changed into mechanical energy by hydraulic cylinder using the straight reciprocating motion of piston.But due to current piston structure
And the unicity of attachment means, easily cause piston and occur radial rotary or axial movement in use.The radial direction rotation of piston
Turn easily to cause agitation smooth inside hydraulic cylinder, the fluid of agitation can react on piston, influence the service behaviour of hydraulic cylinder again；
The radial rotating easily Axial Mounting Part with piston of other piston rotates together, so that fixture loosens, causes piston
Axial movement.The axial movement of piston, piston and fastener can be made to have gap, when causing the hydraulic cylinder piston to start, prolonged
When, or even there is the impact jumping phenomena of piston rod.
Therefore, should be from liquid for existing section hydraulic cylinder piston existing radial rotary, axial float problem in use
Considered in the structure and attachment means of pressure cylinder piston, design a kind of anti-rotational, anti-leaping piston connection device.
The content of the invention
The present invention is directed to existing section hydraulic cylinder piston existing radial rotary, axial float problem in use, there is provided
It is a kind of can effectively solve the above problems a kind of prevent piston radial rotation, the combined type attachment means of axial movement.
The a kind of of the present invention prevents piston radial rotation, the combined type attachment means of axial movement from using following technical side
Case：
It is a kind of to prevent piston radial rotation, the combined type attachment means of axial movement, mainly including cylinder barrel, piston rod, lock
Tight nut, elastic washer, circlip, sealing ring, cushion collar and piston, piston are combined by piston plate A and piston plate B；
The piston plate A is hollow columnar structured, and piston plate A outer bottom is provided with the uniform blind hole of 8 circumferences, piston plate A's
Top surface is provided with groove, and piston plate A inner bottom surface is provided with the uniform piston plate A pillars of 8 circumferences, and piston plate A lateral surface is set
It is fluted；The piston plate B is hollow columnar structured, and piston plate B outer bottom is provided with the uniform blind hole of 8 circumferences, living
Plug disk B top surface is provided with groove, and piston plate B inner bottom surface is provided with the uniform piston plate B pillars of 8 circumferences, piston plate B pillars
Blind hole is provided with, blind hole internal diameter is identical with piston plate A pillar external diameters, and piston plate B lateral surface is provided with groove；The elastic washer
Using elastomeric material, its structure is annular, and elastic washer inner ring surface is provided with the uniform elastic washer internal projection of 4 circumferences,
Elastic washer outer ring surface is provided with the uniform elastic washer outer lug of 8 circumferences, the raised external diameter of elastic washer outer lug and work
The blind hole internal diameter for filling in disk A outer bottoms is identical；The circlip uses elastomeric material, and its structure is annular, circlip
The uniform circlip outer lug of 8 circumferences, the raised external diameter of circlip outer lug and work are respectively equipped with two outer ring surfaces
The blind hole internal diameter for filling in disk B outer bottoms is identical；The both ends of the cushion collar are separately mounted to piston plate A and piston plate B top surface is recessed
In groove, cushion collar uses elastomeric material；The sealing ring is 2, and the lateral surface for being separately mounted to piston plate A and piston plate B is recessed
In groove, sealing ring uses elastomeric material；The head end of the piston rod is provided with the shaft shoulder and external screw thread, and its shaft shoulder is provided with 8 circumferences
Uniform blind hole, and blind hole internal diameter is identical with the external diameter of circlip outer lug, installation locking nut, piston rod on its external screw thread
Head end is provided with the blind hole of 8 radial equipartitions close to external screw thread side, and blind hole internal diameter is identical with elastic washer internal projection external diameter, piston
Rod head end is sequentially installed with circlip, piston plate B, piston plate A, elastic washer and locking nut from inside to outside.
The present invention piston plate A and piston plate B are designed as it is hollow columnar structured, to reduce the weight of piston；And
8 circumferences are separately designed on piston plate A and piston plate B uniformly and the piston plate A pillars and piston plate B pillars of combination can be inserted,
By this design to strengthen the oil pressure bearing capacity of piston, i.e., while reducing weight with hollow shape piston, pass through piston plate A branch
The intensity of post and piston plate B pillars increase piston, prevents piston from being deformed under high oil pressure；In addition, in piston plate A and piston plate B
Outer bottom be respectively equipped with 8 uniform blind holes of circumference, in order to the installation of elastic washer outer lug and circlip outer lug
It is fixed.
The present invention is respectively equipped with 8 circumferences on elastic washer outer ring surface and on two outer ring surfaces of circlip uniform
Elastic washer outer lug and circlip outer lug, and elastic washer inner ring surface are provided with the uniform elastic washer of 4 circumferences
Internal projection, the radial rotary of piston is prevented by this design, such as when piston plate B produces radial rotating, piston plate B sides
Circlip outer lug will move therewith, and the circlip outer lug remains stationary of the piston rod shaft shoulder, will so make elastic gear
Circle produces torsional deflection, and the elastic washer of elastomeric material is because having high-damping, viscoplasticity, with frictional heat and elastic deformation and
Form hinder piston plate B and the piston rod shaft shoulder to produce dislocation to rotate, so as to play a part of suppressing piston radial rotation；And bullet
The property packing ring internal projection combination piston rod shaft shoulder and locking nut can prevent piston axis from moving.
The present invention installs the cushion collar of elastomeric material in piston plate A and piston plate B top surface groove, passes through this design
Piston plate A and piston plate B impact are prevented, i.e., by the friction between the elastic deformation and rubber molecule of cushion collar, by liquid
Press oil the impact kinetic energy that acts on piston plate A or piston plate B by it is elastic can and heat energy in the form of consume, prevent piston plate A or
Piston plate B impacts deform, so that causing the leakage of piston both sides hydraulic oil.
The beneficial effects of the invention are as follows：By the piston plate of the hollow circle tube containing pillar, realize piston without loss of strength
Under drop weight；By the projection on elastic washer and circlip, the piston rod shaft shoulder and locking nut, realization prevents piston radial
Rotation, axial movement；Its mutual impact is prevented by the cushion collar between piston plate.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the close-up schematic view of combined type connection piston of the present invention.
Fig. 3 is inventive piston disk A structural representation.
Fig. 4 is inventive piston disk B structural representation.
Fig. 5 is the structural representation of elastic washer of the present invention.
Fig. 6 is the structural representation of circlip of the present invention.
Wherein：1st, cylinder barrel, 2, sealing ring, 3, locking nut, 4, elastic washer internal projection, 5, elastic washer, 6, cushion
Enclose outer lug, 7, piston plate A, 8, piston plate A pillars, 9, cushion collar, 10, piston plate B pillars, 11, piston plate B, 12, elasticity gear
Circle, 13, circlip outer lug, 14, piston rod.
Embodiment
Embodiment：
As shown in figure 1, a kind of of the present invention prevents piston radial rotation, the combined type attachment means of axial movement, mainly
Including cylinder barrel 1, piston rod 14, locking nut 3, elastic washer 5, circlip 12, sealing ring 2, cushion collar 9 and piston, piston
Combined by piston plate A 7 and piston plate B 11.Sealing ring 2 is 2, is separately mounted to piston plate A 7 and piston plate B 11
Lateral surface groove in, sealing ring 2 uses elastomeric material；The head end of piston rod 14 is provided with the shaft shoulder and external screw thread, is set on its shaft shoulder
There is the uniform blind hole of 8 circumferences, and blind hole internal diameter is identical with the external diameter of circlip outer lug 13, installation locking on its external screw thread
Nut 3, the head end of piston rod 14 are provided with the blind hole of 8 radial equipartitions, and blind hole internal diameter and elastic washer convex close to external screw thread side
Rise 4 external diameters it is identical, the head end of piston rod 14 is sequentially installed with circlip 12, piston plate B 11, piston plate A 7, bullet from inside to outside
Property packing ring 5 and locking nut 3.
The both ends of cushion collar 9 are separately mounted in piston plate A 7 and piston plate B 11 top surface groove, and cushion collar 9 uses
Elastomeric material, during work, this design can prevent piston plate A 7 and piston plate B 11 impact, that is, pass through cushion collar 9
Friction between elastic deformation and rubber molecule, the impact kinetic energy that hydraulic oil is acted on piston plate A 7 or piston plate B 11 with
It is elastic to be consumed with the form of heat energy, prevent piston plate A 7 or the impacts of piston plate B 11 from deforming, so that causing piston both sides
The leakage of hydraulic oil.
With reference to shown in Fig. 2, Fig. 3, Fig. 4, piston plate A 7 is hollow columnar structured, and piston plate A 7 outer bottom is provided with
The uniform blind hole of 8 circumferences, piston plate A 7 top surface are provided with groove, and piston plate A 7 inner bottom surface is uniform provided with 8 circumferences
Piston plate A pillars 8, piston plate A 7 lateral surface is provided with groove；Piston plate B 11 is hollow columnar structured, piston plate B
11 outer bottom is provided with the uniform blind hole of 8 circumferences, and piston plate B 11 top surface is provided with groove, on piston plate B 11 inner bottom surface
Provided with the uniform piston plate B pillars 10 of 8 circumferences, piston plate B pillars 10 are provided with blind hole, blind hole internal diameter and piston plate A pillars
8 external diameters are identical, and piston plate B 11 lateral surface is provided with groove.
It is this to be designed as piston plate A 7 and piston plate B 11 hollow columnar structured, the weight of piston can be reduced；
And 8 circumferences are separately designed on piston plate A 7 and piston plate B 11 uniformly and the piston plate A pillars 8 of combination can be inserted and lived
Disk B pillars 10 are filled in, by this design to strengthen the oil pressure bearing capacity of piston, i.e., while reducing weight with hollow shape piston,
Increase the intensity of piston by piston plate A pillars 8 and piston plate B pillars 10, prevent piston from being deformed under high oil pressure；In addition,
Piston plate A 7 and piston plate B 11 outer bottom are respectively equipped with 8 uniform blind holes of circumference, in order to elastic washer outer lug 6
Installation with circlip outer lug 13 is fixed.
With reference to shown in Fig. 5, Fig. 6, elastic washer 5 uses elastomeric material, and its structure is annular, the inner ring surface of elastic washer 5
The uniform elastic washer internal projection 4 of 4 circumferences is provided with, the outer ring surface of elastic washer 5 is provided with the uniform elastic washer of 8 circumferences
Outer lug 6, the raised external diameter of elastic washer outer lug 6 are identical with the blind hole internal diameter of the outer bottoms of piston plate A 7；
Circlip 12 uses elastomeric material, and its structure is annular, is set respectively on two outer ring surfaces of circlip 12
There are the uniform circlip outer lug 13 of 8 circumferences, raised external diameter and the outer bottoms of piston plate B 11 of circlip outer lug 13
Blind hole internal diameter it is identical.
8 uniform bullets of circumference are respectively equipped with the outer ring surface of elastic washer 5 and on two outer ring surfaces of circlip 12
Property packing ring outer lug 6 and circlip outer lug 13, and the inner ring surface of elastic washer 5 is provided with the uniform cushion of 4 circumferences
Internal projection 4 is enclosed, the radial rotary of piston can be prevented by this design, such as when piston plate B 11 produces radial rotating, piston
The circlip outer lug 6 of the sides of disk B 11 will move therewith, and the circlip outer lug 13 of the shaft shoulder of piston rod 14 keeps quiet
Only, circlip 12 will be so made to produce torsional deflection, and the elastic washer 5 of elastomeric material is because with high-damping, viscoplasticity, with
Frictional heat and elastic deformation and form hinder piston plate B 11 and the shaft shoulder of piston rod 14 to produce dislocation and rotate, so as to play suppression
The effect of piston radial rotation processed；And the combination shaft shoulder of piston rod 14 of elastic washer internal projection 4 and locking nut 3 can prevent piston shaft
Line moves.
Claims (1)
1. a kind of prevent piston radial rotation, the combined type attachment means of axial movement, mainly including cylinder barrel, piston rod, locking
Nut, elastic washer, circlip, sealing ring, cushion collar and piston, piston are combined by piston plate A and piston plate B；Its
It is characterised by：The piston plate A is hollow columnar structured, and piston plate A outer bottom is provided with the uniform blind hole of 8 circumferences,
Piston plate A top surface is provided with groove, and piston plate A inner bottom surface is provided with the uniform piston plate A pillars of 8 circumferences, piston plate A's
Lateral surface is provided with groove；The piston plate B is hollow columnar structured, and it is uniform that piston plate B outer bottom is provided with 8 circumferences
Blind hole, piston plate B top surface are provided with groove, and piston plate B inner bottom surface is provided with the uniform piston plate B pillars of 8 circumferences, piston
Disk B pillars are provided with blind hole, and blind hole internal diameter is identical with piston plate A pillar external diameters, and piston plate B lateral surface is provided with groove；It is described
Elastic washer uses elastomeric material, and its structure is annular, and elastic washer inner ring surface is provided with the uniform elastic washer of 4 circumferences
Internal projection, elastic washer outer ring surface are provided with the uniform elastic washer outer lug of 8 circumferences, and the projection of elastic washer outer lug is outer
Footpath is identical with the blind hole internal diameter of piston plate A outer bottoms；The circlip uses elastomeric material, and its structure is annular, elasticity
The uniform circlip outer lug of 8 circumferences is respectively equipped with two outer ring surfaces of back-up ring, the projection of circlip outer lug is outer
Footpath is identical with the blind hole internal diameter of piston plate B outer bottoms；The both ends of the cushion collar are separately mounted to piston plate A's and piston plate B
In top surface groove, cushion collar uses elastomeric material；The sealing ring is 2, is separately mounted to the outer of piston plate A and piston plate B
In lateral grooves, sealing ring uses elastomeric material；The head end of the piston rod is provided with the shaft shoulder and external screw thread, and its shaft shoulder is provided with 8
The uniform blind hole of individual circumference, and blind hole internal diameter is identical with the external diameter of circlip outer lug, installation locking nut on its external screw thread,
Piston rod head end is provided with the blind hole of 8 radial equipartitions, and blind hole internal diameter and elastic washer internal projection external diameter phase close to external screw thread side
Together, piston rod head end is sequentially installed with circlip, piston plate B, piston plate A, elastic washer and locking nut from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602259.8A CN105179364B (en) | 2015-09-21 | 2015-09-21 | It is a kind of to prevent piston radial rotation, the combined type attachment means of axial movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602259.8A CN105179364B (en) | 2015-09-21 | 2015-09-21 | It is a kind of to prevent piston radial rotation, the combined type attachment means of axial movement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179364A CN105179364A (en) | 2015-12-23 |
| CN105179364B true CN105179364B (en) | 2017-12-15 |
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ID=54901693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510602259.8A Expired - Fee Related CN105179364B (en) | 2015-09-21 | 2015-09-21 | It is a kind of to prevent piston radial rotation, the combined type attachment means of axial movement |
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| CN (1) | CN105179364B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494560B (en) * | 2021-06-30 | 2022-08-09 | 岚图汽车科技有限公司 | Shock absorber pillar assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718308A1 (en) * | 1987-05-30 | 1989-01-12 | Gerhard Hanik Maschinenbau Ing | Fluid working cylinder |
| IT1255184B (en) * | 1992-06-26 | 1995-10-20 | Univer Spa | PNEUMATIC ROTARY ACTUATOR WITH INCREASED TORQUE TORQUE |
| CN2878760Y (en) * | 2006-03-09 | 2007-03-14 | 裘洪立 | Side-status cylinder |
| CN101324245B (en) * | 2008-07-03 | 2010-12-08 | 武汉科技大学 | Hydraulic cylinder of low friction force |
| CN202251237U (en) * | 2011-09-21 | 2012-05-30 | 常德大汉专用汽车有限公司 | Loose-proof device of piston of hydraulic oil cylinder |
| CN102852899A (en) * | 2012-09-03 | 2013-01-02 | 山东隆源液压科技有限公司 | Vertical oil cylinder |
| CN205064432U (en) * | 2015-09-21 | 2016-03-02 | 济南大学 | Prevent that piston is radially rotatory, axial displacement's combination formula connecting device |
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2015
- 2015-09-21 CN CN201510602259.8A patent/CN105179364B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN105179364A (en) | 2015-12-23 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20200921 |