CN101628424A - Hydraulic shear - Google Patents
Hydraulic shear Download PDFInfo
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- CN101628424A CN101628424A CN200810116846A CN200810116846A CN101628424A CN 101628424 A CN101628424 A CN 101628424A CN 200810116846 A CN200810116846 A CN 200810116846A CN 200810116846 A CN200810116846 A CN 200810116846A CN 101628424 A CN101628424 A CN 101628424A
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- sealing ring
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Abstract
The invention relates to a novel hydraulic shear which has high pressure resistance, no medium leakage, long service life and lower cost. The hydraulic shear adopts a novel sealing technology, in which medium pressure extrudes a sealing ring body from the intracavity 6 of a hollow sealing ring 5 between a piston 1 and a cylinder body 10 of a hydraulic transmission part of the hydraulic shear so that the sealing ring body clings to the cylinder body 10 for sealing. Because the intracavity of the n-shaped sealing ring is hollow, less abrasion is generated during operating stroke; moreover, during the return operating stroke of a spring 12, slight friction is generated between the sealing ring body and the cylinder body 10, so little abrasion is caused; meanwhile, medium pressure extrudes the sealing ring body from inside to realize sealing, and the entire rubber sealing ring is evenly stressed and generates little deformation and no permanent deformation under the extrusion of medium pressure, thereby prolonging the service life of the n-shaped sealing ring 5. The hydraulic shear has the advantages that the shear has multiplied service life and no medium leakage, and can endure higher pressure than the prior hydraulic shear; moreover, the cost of the shear is substantially reduced compared with the prior hydraulic shear.
Description
The present invention relates to the hydraulic hand tool field.
As everyone knows, it is important equipment in the hydraulic hand tool field that hydraulic pressure is cut, and is made of critical pieces such as hydraulic transmission part, scissors member.The quality that hydraulic transmission part processing performance quality is cut hydraulic pressure has conclusive effect.O shape circle, Yx shape circle and combined seal ring Sealing Technology thereof are adopted in piston that existing hydraulic pressure is cut and end caps movable sealing for a long time.In rubber seal Sealing Technologies such as O shape circle, Yx shape circle, working medium pressure makes it be adjacent to cylinder body and piston rod surface and realizes sealing from sealing ring external compression sealing circle body, when hydraulic pressure is cut work, the hydraulic transmission part potted component with cylinder body and piston rod surface relative motion in be easy to be damaged, thereby dielectric leakage takes place; If working medium pressure is too high, potted component then can produce distortion, and medium passes through and mistake, and seal failure causes existing hydraulic pressure to cut the working life weak point, can not bear high pressure, has influenced the result of use that hydraulic pressure is cut.In addition, because the frictional force between potted component and plunger body and the cylinder sleeve is very big, everything goes well with your work in order to guarantee the spring-like resetting-mechanism, the contact-making surface of every and sealing ring, and all demanding machining accuracy causes the manufacturing cost height.And after having adopted the combined seal ring Sealing Technology, higher owing to combined seal ring costs an arm and a leg to each component processing required precision, further make existing hydraulic pressure be cut into this and significantly rise.Yet because its sealing mechanism is all the same basically with rubber seal Sealing Technologies such as O shape circle, Yx shape circles, sealing effectiveness is not very good yet, exists the dielectric leakage problem always, can not anti-very high pressure.
Purpose of the present invention is exactly that the novel hydraulic that will provide a kind of high voltage bearing, no dielectric leakage, long service life and cost to reduce is cut.
Technical scheme of the present invention is achieved in that
Between the piston 1 and cylinder body 10 that hydraulic pressure is cut, adopt pressure medium to make it be adjacent to cylinder body 10 and the novel sealing technology of realization sealing from the inner chamber 6 crush seal circle bodies of hollow sealing ring 5.
Be characterized in: 1) hydraulic pressure is cut the groove 3 that some is arranged on hydraulic transmission part piston block 1 column working; Quantity is counted from zero, does not limit to requirement; 2) hydraulic pressure is cut and is had a plurality of sealing ring mounting grooves on the hydraulic transmission part piston block 1, and the road is several to be required to decide according to processing performance, and quantity is not limit; 3) working face of sealing ring 5 both sides inboard and sealing ring constitute hollow cavity 6, because hollow sealing circle 5 cross sectional shapes are like n shape, so be called n shape sealing ring; 4) on the sealed working face of n shape sealing ring 5 boss 9 is arranged, boss 9 quantity are decided according to the service behaviour and the technical parameter of instructions for use, and quantity is counted from zero, do not limit to requirement; 5) have access opening 4 to lead to each sealing ring mounting groove on hydraulic transmission part piston block 1 end face, boot media enters the inner chamber 6 of axle with n shape sealing ring 5, and access opening 4 can be shared, also can separate separately.
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the diagrammatic sketch that the novel hydraulic of employing hollow n shape sealing ring 5 Sealing Technologies is cut liquid
Fig. 2 is the cut-away view of axle with n shape sealing ring
As can be seen from Figure 1, hydraulic pressure is cut the groove 3 that some is arranged on hydraulic transmission part piston block 1 column working; Hydraulic pressure is cut and is had a plurality of sealing ring mounting grooves on the hydraulic transmission part piston block 1, and n shape sealing ring 5 just is installed in the sealing ring mounting groove; The end face that hydraulic pressure is cut hydraulic transmission part piston block 1 has some access openings 4 and each sealing ring mounting groove to be interconnected.Access opening 4 can be shared, also can separate separately.End cap 2 is provided with guide ring 13, sealing ring 14.
Axle among Fig. 2 is with having boss 9 on n shape sealing ring 5 its sealed working faces, and boss 9 quantity decide according to service behaviour such as the pressure of instructions for use and technical parameter, and quantity is counted from zero, do not limit to requirement.
As can be seen from Figure 1, the close end of cutting hydraulic transmission part piston block 1 at hydraulic pressure has a plurality of sealing ring mounting grooves, and n shape sealing ring 5 just is installed in each mounting groove respectively; The end face of piston block 1 has some access openings 4 and leads to each sealing ring mounting groove, medium can be imported the inner chamber 6 of axle with n shape sealing ring 5.After hydraulic pressure is cut hydraulic transmission part and started working, be full of medium in the sealing ring inner chamber 6, n shape sealing ring 5 working faces are close to cylinder body 10.Pressure strengthens during handle 7,8 actions, pressure medium is reached the inner chamber 6 of sealing ring via end face access opening 4 by medium, axle is closely contacted with cylinder body 10 with n shape sealing ring 5 sealed working faces, and each road axle forms labyrinth seal with boss 9 on n shape sealing ring 5 sealed working faces and the groove on piston block 1 column working 3, medium by the time pressure progressively decay, medium can not take place and pass through leakage phenomenon in the pressure medium less than the inner chamber 6 of n shape sealing ring 5, obtains fabulous sealing effectiveness.And pressure medium is big more, and the sealed working face of n shape sealing ring 5 sealed working faces and cylinder body 10 is fitted tight more, as long as the sealing circle body is not crushed, sealing effectiveness always is fine.Pressure medium promotes 1 motion of hydraulic transmission part piston block, and transferring power is carried out work to scissors 15.Because hydraulic transmission part is high pressure resistant, can transmit bigger power, so hydraulic pressure of the present invention is cut bigger shearing.Owing to n shape sealing ring inner chamber hollow, wearing and tearing are also little in the impulse stroke simultaneously; And in spring 12 resetted impulse stroke, sealing circle body and cylinder body 10 frictions were slight, and it is very little to wear and tear; Simultaneously, pressure medium is that the crush seal circle body is realized sealing internally, and whole rubber seal is evenly stressed under the extruding of pressure medium, and deformation is very little, can not produce permanent deformation, and n shape sealing ring 5 working lives have obtained prolongation.And because n shape sealing ring inner chamber hollow, in the impulse stroke that resets, frictional resistance is little between sealing circle body and the cylinder body 10, has also guaranteed the smooth of spring 12 resetting-mechanism work.The road number that hydraulic pressure of the present invention is cut n shape sealing ring in the hydraulic transmission part is required to decide by processing performance.Hydraulic pressure of the present invention cuts not only that working life is multiplied, and no dielectric leakage can bear than existing hydraulic pressure and cut high pressure, and the existing hydraulic pressure of cost is cut significantly and reduced.
Claims (6)
1. a novel hydraulic high voltage bearing, no dielectric leakage, long service life is cut; It is characterized in that: hydraulic pressure is cut and is adopted working medium pressure to make it be adjacent to cylinder body 10 inner surfaces and realize sealing from the inner chamber 6 crush seal circle bodies of novel hollow sealing circle 5 between the piston 1 of hydraulic transmission part and the cylinder body 10.
2. hydraulic pressure according to claim 1 is cut the groove 3 that some is arranged on hydraulic transmission part piston block 1 column working.
3. hydraulic pressure according to claim 1 is cut and is had a plurality of sealing ring mounting grooves on the hydraulic transmission part piston block 1, and the road is several to be required to decide according to processing performance, and quantity is not limit.
4. the n shape sealing ring 5 that hydraulic pressure according to claim 1 is cut the hydraulic transmission part employing just is installed in the sealing ring mounting groove.
5. the working face of n shape sealing ring 5 according to claim 4 both sides inboard and sealing ring constitute hollow cavity 6, have boss 9 on the sealed working face of sealing ring, and its quantity is counted from zero, do not limit to requirement.
6. the end face of single-action hydraulic cylinder piston block 1 according to claim 1 has some access openings 4 and each sealing ring mounting groove to be interconnected, and access opening 4 can be shared, also can separate separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810116846A CN101628424A (en) | 2008-07-18 | 2008-07-18 | Hydraulic shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810116846A CN101628424A (en) | 2008-07-18 | 2008-07-18 | Hydraulic shear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101628424A true CN101628424A (en) | 2010-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810116846A Pending CN101628424A (en) | 2008-07-18 | 2008-07-18 | Hydraulic shear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101628424A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011097959A1 (en) * | 2010-02-13 | 2011-08-18 | Yang Yi | Mechanical shaver with downward pressable shaving cap and inner power device thereof |
| CN102275154A (en) * | 2010-06-11 | 2011-12-14 | 成都理工大学 | Novel hydraulic spreader-shearer |
| CN103659871A (en) * | 2013-11-19 | 2014-03-26 | 长春富维—江森自控汽车饰件系统有限公司 | Pneumatic trimming equipment for automobile interior trim part |
-
2008
- 2008-07-18 CN CN200810116846A patent/CN101628424A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011097959A1 (en) * | 2010-02-13 | 2011-08-18 | Yang Yi | Mechanical shaver with downward pressable shaving cap and inner power device thereof |
| CN102275154A (en) * | 2010-06-11 | 2011-12-14 | 成都理工大学 | Novel hydraulic spreader-shearer |
| CN103659871A (en) * | 2013-11-19 | 2014-03-26 | 长春富维—江森自控汽车饰件系统有限公司 | Pneumatic trimming equipment for automobile interior trim part |
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Application publication date: 20100120 |