CN101701627A - T-shaped anti-friction rubber and plastic compound piston - Google Patents
T-shaped anti-friction rubber and plastic compound piston Download PDFInfo
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- CN101701627A CN101701627A CN200910061637A CN200910061637A CN101701627A CN 101701627 A CN101701627 A CN 101701627A CN 200910061637 A CN200910061637 A CN 200910061637A CN 200910061637 A CN200910061637 A CN 200910061637A CN 101701627 A CN101701627 A CN 101701627A
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Abstract
The invention relates to a piston for pneumatic cylinders and hydraulic cylinders. The T-shaped anti-friction rubber and plastic compound piston has good rebound resilience, wear resistance, shock resistance, tearing resistance and antifatigue performance, simple structure, convenient assembly and long service life. The T-shaped anti-wear rubber and plastic compound piston comprises a high-elasticity rubber plastic body 2, an anti-friction agent blended rubber plastic body 6 and a framework 3, wherein the high-elasticity rubber plastic body 2 is compounded on the surface of the framework 3 and plays roles in buffering, shock absorption, lip mouth sealing compensation and the static seal between an inner piston hole part and a piston rod; the anti-friction agent blended rubber plastic body 6 is compounded on the surface of the high-elasticity rubber plastic body 2 and plays roles in anti-friction, shock absorption and the dynamic seal between a piston excircle part and the inner wall of a cylinder body; the three parts are combined into a whole by adopting a pressing vulcanization or thermoplastic injection process; and the framework 3 is used for guaranteeing that the piston has enough strength and rigidness and used as a supporting framework of the high-elasticity rubber plastic body 2 and the anti-friction agent blended rubber plastic body 6. A rubber body, a thermoplastic elastomer (TPE) or a rubber modified body can be used as the high-elasticity rubber plastic body 2, a blended rubber plastic elastomer with an anti-friction agent or a blended thermoplastic elastomer with the anti-friction agent can be used as the anti-friction agent blended rubber plastic body 6, and the framework 3 can be made of metal, metal alloy or engineering plastics.
Description
(1) technical field: the present invention relates to air pressure and hydraulic cylinder piston, specifically be can be used for all kinds of pneumatic, equipment piston cylinder piston surges.
(2) background technique: existing pneumatic, equipment piston cylinder piston surges, a kind of mode is to comprise two of two of O type rubber seal, four of L type rubber seal, two of piston cups and location annulus totally ten compositions, and another kind of mode is to comprise skeleton and be compounded in the outer single rubber and plastic body of skeleton constituting.It mainly acts on is the pressure system energy that transmits gas or liquid, and plays dynamic sealing action.Existing pneumatic, the equipment piston cylinder that surges is with piston processing charges height on the one hand, assemble extremely cumbersome, complicated, on the other hand, piston is when work, compressed fluid enters cylinder body by pipeline and acts on piston, transmit the pressure system energy of gas or liquid by piston, piston does relatively reciprocating motion in piston cylinder, and in movement process, piston and cylinder body inner core produce friction each other, because its friction factor is big, cause the breakout pressure height, the rubber seal wear resistance in the piston is relatively poor, quick abrasion, life-span is short, generally is no more than three months.
(3) summary of the invention: purpose of the present invention just provides a kind ofly can significantly improve pneumatic, the piston integrated performance of equipment piston cylinder of surging, long service life pneumatic, equipment piston cylinder piston surges.
T shape anti-friction rubber and plastic compound piston comprises piston, and described piston is to be made of the skeleton composite bed rubber and plastic body outer with being compounded in skeleton.
Described rubber and plastic body is a lamination layer structure, and the rubber and plastic body that is compounded on the skeleton outer surface is a high elasticity rubber and plastic body, and being compounded in the lip-deep rubber and plastic body in the external garden of high elasticity rubber and plastic is the anti-friction agent co-blending elastic body.
Described skeleton is a kind of circular ring.
Described skeleton is made of metal, metal alloy or engineering plastics.
Described high elasticity rubber and plastic body is a kind of in rubber body, thermoplastic elastomer (TPE) (TPE) or the rubber and plastic modification body.
Described anti-friction agent co-blending elastic body 6 is the blend thermoplastic elastomer (TPE) (TPE) that has added the blend rubber-plastic elastomer of anti-friction agent or added anti-friction agent.
The outer garden of described anti-friction agent co-blending elastic body sectional shape is a lip.
The present invention is owing to the solid piston that adopts composite bed rubber and plastic body and skeleton to be combined into one, and it is very simple that structure becomes, and manufacturing and assembling become very easy, and cost is low, and anti-eccentricity is strong, and the life-span is long; The rubber and plastic body that is compounded on the skeleton outer surface is a high elasticity rubber and plastic body, and contact stress is big, and compressibility and resilience are good, and technology capability is good; Because being compounded in the lip-deep rubber and plastic body in the external garden of high elasticity rubber and plastic is the anti-friction agent co-blending elastic body, this anti-friction agent co-blending elastic body is on the one hand owing to adopted antifriction material, abrasion resistance properties is splendid, on the other hand, its outer garden sectional shape has adopted lip shape shape, and self-styled is fabulous; Skeleton has enough strength and stiffness and conduct to be compounded in the support frame of the rubber and plastic body on the skeleton in order to guarantee piston.Through on probation, working life, piston improved a lot more in the past, satisfied pneumatic, as to surge equipment piston cylinder piston usage requirement fully, and the user is generally reflected well.
(4) description of drawings:
Fig. 1 is an overall structure schematic representation of the present invention;
Fig. 2 is the part facade view of first embodiment of the present invention among Fig. 1;
Fig. 3 is second embodiment's sectional view of the present invention among Fig. 1;
Fig. 4 is the 3rd embodiment's sectional view of the present invention among Fig. 1;
Fig. 5 is the 4th embodiment's sectional view of the present invention among Fig. 1;
Fig. 6 be among Fig. 1 the 4th embodiment A of the present invention to view;
Fig. 7 is the 5th embodiment's sectional view of the present invention among Fig. 1;
Fig. 8 is the 6th embodiment's sectional view of the present invention among Fig. 1;
Fig. 9 is the 8th embodiment's sectional view of the present invention among Fig. 1;
Figure 10 is the 9th embodiment's sectional view of the present invention among Fig. 1;
(5) embodiment:
Referring to Fig. 1～Figure 10, T shape anti-friction rubber and plastic compound piston of the present invention is made of the skeleton 3 composite bed rubber and plastic body outer with being compounded in skeleton, and forms one.Composite bed rubber and plastic body is formed by being compounded in the high elasticity rubber and plastic body 2 on the skeleton outer surface and being compounded in the lip-deep anti-friction agent co-blending elastic body 6 in the external garden of high elasticity rubber and plastic, high elasticity rubber and plastic body 2 plays the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, dynamic sealing action between outer garden part of anti-friction agent co-blending elastic body 6 antifriction, damping and pistons and the inboard wall of cylinder block, skeleton 3 has enough strength and stiffness and conduct to be compounded in the support frame of the rubber and plastic body on the skeleton in order to guarantee piston.The outer round surface of piston 1 and inboard wall of cylinder block 5 adopt interference fit, and the endoporus of piston 1 and piston rod 4 adopt Spielpassung.Above-mentioned framework material can use metal, metal alloy or engineering plastics, described high elasticity rubber and plastic body can use rubber body, thermoplastic elastomer (TPE) (TPE) or rubber and plastic modification body, and described anti-friction agent co-blending elastic body 6 is the blend thermoplastic elastomer (TPE) (TPE) that has added the blend rubber-plastic elastomer of anti-friction agent or added anti-friction agent.
Because different occasion is to the requirement difference of piston, comprise that for the complex method of composite bed rubber and plastic body the shape of high elasticity rubber and plastic body and the lip shape of anti-friction agent co-blending elastic body have different embodiments.
Shown in Fig. 2 is first kind of mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play the dynamic sealing action between outer garden part of antifriction, damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body shape have been shown among Fig. 2.
Shown in Fig. 3 is second kind of mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play the dynamic sealing action between outer garden part of antifriction, damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body shape have been shown among Fig. 3.
Shown in Fig. 4 is the third mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play the dynamic sealing action between outer garden part of antifriction, damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body shape have been shown among Fig. 4.
Shown in Fig. 5～Fig. 6 is the 4th kind of mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play buffering, damping, static sealing effect between lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play antifriction, dynamic sealing action between outer garden part of damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body sectional shape have been shown among Fig. 5, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body end surface shape have been shown among Fig. 6.
Shown in Fig. 7 is the 5th kind of mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play the dynamic sealing action between outer garden part of antifriction, damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body shape have been shown among Fig. 7.
Shown in Fig. 8 is the 6th kind of mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play the dynamic sealing action between outer garden part of antifriction, damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body shape have been shown among Fig. 8.
Shown in Fig. 9 is the 7th kind of mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play the dynamic sealing action between outer garden part of antifriction, damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body shape have been shown among Fig. 9.
Shown in Figure 10 is the 8th kind of mode of execution of Fig. 1, be that high elasticity rubber and plastic body 2 is compounded on the surface of skeleton 3, play the static sealing effect between buffering, damping, lip seal compensation and piston inner hole part and the piston rod, anti-friction agent co-blending elastic body 6 is compounded on the surface, outer garden of high elasticity rubber and plastic body 2, play the dynamic sealing action between outer garden part of antifriction, damping and piston and the inboard wall of cylinder block, high elasticity rubber and plastic body and anti-friction agent co-blending elastic body shape have been shown among Figure 10.
Claims (7)
1.T the shape anti-friction rubber and plastic compound piston comprises piston, it is characterized in that: described piston is to be made of the skeleton composite bed rubber and plastic body outer with being compounded in skeleton.
2. T shape anti-friction rubber and plastic compound piston according to claim 1, it is characterized in that: described rubber and plastic body is a lamination layer structure, the rubber and plastic body that is compounded on the skeleton outer surface is a high elasticity rubber and plastic body, and being compounded in the lip-deep rubber and plastic body in the external garden of high elasticity rubber and plastic is the anti-friction agent co-blending elastic body.
3. T shape anti-friction rubber and plastic compound piston according to claim 1 is characterized in that: described skeleton is a kind of circular ring.
4. T shape anti-friction rubber and plastic compound piston according to claim 1 and 2, it is characterized in that: described skeleton is made of metal, metal alloy or engineering plastics.
5. T shape anti-friction rubber and plastic compound piston according to claim 1 and 2 is characterized in that: described high elasticity rubber and plastic body is a kind of in rubber body, thermoplastic elastomer (TPE) (TPE) or the rubber and plastic modification body.
6. T shape anti-friction rubber and plastic compound piston according to claim 1 and 2 is characterized in that: described anti-friction agent co-blending elastic body 6 is the blend thermoplastic elastomer (TPE) (TPE) that has added the blend rubber-plastic elastomer of anti-friction agent or added anti-friction agent.
7. according to claim 1 or 2 or 6 described T shape anti-friction rubber and plastic compound pistons, it is characterized in that: the outer garden of described anti-friction agent co-blending elastic body sectional shape is a lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910061637A CN101701627A (en) | 2009-04-17 | 2009-04-17 | T-shaped anti-friction rubber and plastic compound piston |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910061637A CN101701627A (en) | 2009-04-17 | 2009-04-17 | T-shaped anti-friction rubber and plastic compound piston |
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| CN101701627A true CN101701627A (en) | 2010-05-05 |
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| CN200910061637A Pending CN101701627A (en) | 2009-04-17 | 2009-04-17 | T-shaped anti-friction rubber and plastic compound piston |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485338A (en) * | 2015-09-30 | 2016-04-13 | 洛阳奥利科机械有限公司 | Automatic compensatory double-lip soft piston |
| CN111051723A (en) * | 2017-09-01 | 2020-04-21 | 舍弗勒技术股份两合公司 | Piston seal assembly for clutch release system and clutch release system |
| CN111043100A (en) * | 2019-12-09 | 2020-04-21 | 陕西航空电气有限责任公司 | Piston structure |
-
2009
- 2009-04-17 CN CN200910061637A patent/CN101701627A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485338A (en) * | 2015-09-30 | 2016-04-13 | 洛阳奥利科机械有限公司 | Automatic compensatory double-lip soft piston |
| CN111051723A (en) * | 2017-09-01 | 2020-04-21 | 舍弗勒技术股份两合公司 | Piston seal assembly for clutch release system and clutch release system |
| CN111051723B (en) * | 2017-09-01 | 2022-01-21 | 舍弗勒技术股份两合公司 | Piston seal assembly for clutch release system and clutch release system |
| CN111043100A (en) * | 2019-12-09 | 2020-04-21 | 陕西航空电气有限责任公司 | Piston structure |
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Open date: 20100505 |