CN214063791U - One-way inner dynamic middle-high pressure seal ring for shaft - Google Patents
One-way inner dynamic middle-high pressure seal ring for shaft Download PDFInfo
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- CN214063791U CN214063791U CN202022271383.XU CN202022271383U CN214063791U CN 214063791 U CN214063791 U CN 214063791U CN 202022271383 U CN202022271383 U CN 202022271383U CN 214063791 U CN214063791 U CN 214063791U
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- sealing washer
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Abstract
The utility model relates to a sealing washer technical field just discloses an one-way interior developments middle and high pressure seal circle for axle, be annular main seal circle including the section, all be the first secondary seal circle and the vice sealing washer of second that the annular set up from inside to outside fixedly connected with section in proper order on the vertical lateral wall of one side of main seal circle, the width of the vice sealing washer of second is greater than the thickness of first secondary seal circle, a section of constituteing jointly between the lateral wall that main seal circle is close to the vice sealing washer of first secondary seal circle and second and first secondary seal circle and the vice sealing washer of second is annular spread groove, the whole cross-section of main seal circle, first secondary seal circle and the vice sealing washer of second is long short lip U-shaped and sets up, and the outer lip of cross-section is long, the inner lip is short. The utility model discloses a setting of U type, the oil impact sealing washer for the sealing washer receives the impact force, and then improves the leakproofness between sealing washer and the hydro-cylinder.
Description
Technical Field
The utility model relates to a sealing washer technical field especially relates to an axle is with one-way interior developments well high-pressure seal circle.
Background
The oil cylinder is also called a hydraulic cylinder, and is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device.
The sealing ring is one of a plurality of parts in the oil cylinder, the traditional sealing ring is made of simple rubber, the sealing performance of the sealing ring can be reduced after the traditional rubber is used for a long time, and therefore the one-way inner dynamic medium-high pressure sealing ring for the shaft is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that traditional sealing washer for the hydro-cylinder appears at the in-process that uses among the prior art, and the one-way interior developments medium and high pressure seal circle is used to axle that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an one-way interior developments middle and high pressure seal circle is annular main seal circle including the section, from inside to outside in proper order fixedly connected with section all be the first secondary seal circle and the vice sealing washer of annular setting from the ring center of main seal circle on the vertical lateral wall in one side of main seal circle, the width of the vice sealing washer of second is greater than the thickness of first secondary seal circle, it is annular spread groove to constitute a section jointly between the lateral wall that main seal circle is close to the vice sealing washer of first secondary seal circle and second and first secondary seal circle and the vice sealing washer of second, main seal circle, first secondary seal circle and the vice sealing washer of second whole cross-section are long short lip U-shaped and set up, and the outer lip length of cross-section, interior lip are short.
Preferably, the inner diameter of the first secondary sealing ring is 39.07mm at the shortest.
Preferably, the sum of the thicknesses of the main sealing ring and the second auxiliary sealing ring is 9 mm.
Preferably, the radius of the U-shaped cross section of each of the main sealing ring, the first auxiliary sealing ring and the second auxiliary sealing ring is 0.8 mm.
Preferably, the second secondary sealing ring is away from the outer side of the primary sealing ring and is arranged in a chamfer angle of 140 degrees.
Preferably, the first secondary sealing ring is away from the inner side of the main sealing ring and is arranged in a chamfer angle of 40 degrees.
Preferably, the main sealing ring is away from the inner side of the first secondary sealing ring and is arranged in a 105-degree chamfer.
Compared with the prior art, the utility model provides an axle is with one-way interior developments well high-pressure seal circle possesses following beneficial effect:
the one-way inner dynamic middle-high pressure seal ring for the shaft is provided with a main seal ring, a first auxiliary seal ring, a second auxiliary seal ring and a connecting groove, wherein the cross section of the main seal ring is in a long and short lip U-shaped seal ring form, the outer lip is long, the inner lip is short, and the one-way inner dynamic middle-high pressure seal ring is specially suitable for the size of a pull rod groove of an oil cylinder; the U-shaped arrangement is adopted, and the oil pressure impacts the sealing ring, so that the sealing ring is subjected to impact force, and the sealing performance between the sealing ring and the oil cylinder is improved.
The device does not relate to the part and all is the same with prior art or can adopt prior art to realize, the utility model discloses a setting of U type, the oil impact sealing washer for the sealing washer receives the impact force, and then improves the leakproofness between sealing washer and the hydro-cylinder.
Drawings
Fig. 1 is the utility model provides a structural schematic diagram of one-way interior developments medium and high pressure seal circle for axle.
In the figure: 1 main sealing ring, 2 first auxiliary sealing rings, 3 second auxiliary sealing rings and 4 connecting grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, a one-way inner dynamic middle and high pressure seal ring for a shaft comprises a main seal ring 1 with an annular section, a first auxiliary seal ring 2 and a second auxiliary seal ring 3 with annular sections are fixedly connected on a vertical side wall of one side of the main seal ring 1 from the ring center of the main seal ring 1 from inside to outside in sequence, the width of the second auxiliary seal ring 3 is larger than the thickness of the first auxiliary seal ring 2, a connecting groove 4 with an annular section is formed between the side wall of the main seal ring 1 close to the first auxiliary seal ring 2 and the second auxiliary seal ring 3 and the first auxiliary seal ring 2 and the second auxiliary seal ring 3 together, the whole section of the main seal ring 1, the first auxiliary seal ring 2 and the second auxiliary seal ring 3 is in a long and short lip U-shaped arrangement, the outer lip and the inner lip of the section are in a long and short lip U-shaped seal ring form, the outer lip is long and short, and is specially suitable for the size of a pull rod groove of an oil cylinder, the sealing ring utilizes a hydraulic principle, hydraulic oil in a sealed hydraulic oil cylinder is pressurized by the pressure of an oil pump to supply pressure to a U-shaped position, the oil pressure can be extruded to sealing lips at two sides, the sealing lips are also extruded to the oil cylinder and a shaft under stress, so that a sealing effect is achieved, the short lip position is required to be short and powerful due to the friction of a pull rod, the overpressure on the pull rod can be prevented, the friction force is reduced, and the good sealing performance and the small friction force are very known to be applied to a one-way pull rod for the shaft; the U-shaped arrangement is adopted, and the oil pressure impacts the sealing ring, so that the sealing ring is subjected to impact force, and the sealing performance between the sealing ring and the oil cylinder is improved.
The first secondary sealing ring 2 has a shortest inner diameter of 39.07 mm.
The sum of the thicknesses of the main sealing ring 1 and the second auxiliary sealing ring 3 is 9 mm.
The radiuses of the U-shaped cross sections of the main sealing ring 1, the first auxiliary sealing ring 2 and the second auxiliary sealing ring 3 are 0.8 mm.
The second auxiliary sealing ring 3 is away from the outer side of the main sealing ring 1 and is arranged in a chamfer angle of 140 degrees.
The inner side of the first auxiliary sealing ring 2 far away from the main sealing ring 1 is chamfered by 40 degrees.
The main seal ring 1 is away from the inner side of the first auxiliary seal ring 2 and is arranged in a 105-degree chamfer.
In the utility model, the cross section is a long short lip U-shaped sealing ring form, the outer lip is long, the inner lip is short, specially adapted for the oil cylinder pull rod slot size, the sealing ring utilizes the hydraulic principle, the hydraulic oil in the sealed hydraulic oil cylinder is supplied pressure to the U-shaped position by the pressure of the oil pump, the oil pressure can extrude to the sealing lips at both sides, the sealing lip atress also extrudes to the oil cylinder and the shaft, thereby playing a sealing role, the short lip position requires short and short forceful because of the pull rod friction, can prevent the excessive pressure in the pull rod, reduces the frictional force, good leakproofness and little frictional force are known to be used for the one-way pull rod for the shaft; the U-shaped arrangement is adopted, and the oil pressure impacts the sealing ring, so that the sealing ring is subjected to impact force, and the sealing performance between the sealing ring and the oil cylinder is improved.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a high pressure seal circle in one-way interior developments for axle, is annular main seal circle (1) including the section, a serial communication port, from the ring center of main seal circle (1) on the vertical lateral wall in one side of main seal circle (1) from inside to outside in proper order fixedly connected with section all be first vice sealing washer (2) and the vice sealing washer (3) of second that the annular set up, the width of the vice sealing washer (3) of second is greater than the thickness of first vice sealing washer (2), constitute a section jointly between the lateral wall that main seal circle (1) is close to first vice sealing washer (2) and the vice sealing washer (3) of second and be annular spread groove (4), main seal circle (1), first vice sealing washer (2) and the vice sealing washer (3) whole cross-section of second are long short lip U-shaped setting, and the outer long lip of cross-section, The inner lip is short.
2. The single direction inner dynamic middle and high pressure seal ring for shaft as claimed in claim 1, characterized in that the inner diameter of the first secondary seal ring (2) is 39.07mm at the shortest.
3. The one-way inner dynamic medium high pressure seal ring for shaft according to claim 1, characterized in that the sum of the thicknesses of the primary seal ring (1) and the secondary seal ring (3) is 9 mm.
4. The one-way inner dynamic medium-high pressure seal ring for the shaft as claimed in claim 1, wherein the radius of the U-shaped cross section of the main seal ring (1), the first secondary seal ring (2) and the second secondary seal ring (3) is 0.8 mm.
5. The axial one-way inner dynamic middle and high pressure seal ring according to claim 1, characterized in that the second secondary seal ring (3) is arranged away from the outer side of the primary seal ring (1) with a 140-degree chamfer.
6. The axial one-way inner dynamic middle and high pressure seal ring according to claim 1, characterized in that the inner side of the first secondary seal ring (2) away from the main seal ring (1) is chamfered at 40 degrees.
7. The axial one-way inner dynamic middle and high pressure seal ring according to claim 1, characterized in that the inner side of the main seal ring (1) away from the first secondary seal ring (2) is chamfered at 105 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022271383.XU CN214063791U (en) | 2020-10-14 | 2020-10-14 | One-way inner dynamic middle-high pressure seal ring for shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022271383.XU CN214063791U (en) | 2020-10-14 | 2020-10-14 | One-way inner dynamic middle-high pressure seal ring for shaft |
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| Publication Number | Publication Date |
|---|---|
| CN214063791U true CN214063791U (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022271383.XU Active CN214063791U (en) | 2020-10-14 | 2020-10-14 | One-way inner dynamic middle-high pressure seal ring for shaft |
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| CN (1) | CN214063791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235290A (en) * | 2021-12-16 | 2022-03-25 | 中传检测(广州)科技有限公司 | Lip-shaped sealing strip for main drive air tightness detection and detection method thereof |
-
2020
- 2020-10-14 CN CN202022271383.XU patent/CN214063791U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235290A (en) * | 2021-12-16 | 2022-03-25 | 中传检测(广州)科技有限公司 | Lip-shaped sealing strip for main drive air tightness detection and detection method thereof |
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