CN210240420U - Nitrogen spring of high leakproofness - Google Patents
Nitrogen spring of high leakproofness Download PDFInfo
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- CN210240420U CN210240420U CN201921033328.8U CN201921033328U CN210240420U CN 210240420 U CN210240420 U CN 210240420U CN 201921033328 U CN201921033328 U CN 201921033328U CN 210240420 U CN210240420 U CN 210240420U
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Abstract
The utility model belongs to the technical field of the air spring equipment technique and specifically relates to a nitrogen spring of high leakproofness, the power distribution cylinder comprises a cylinder body, the inner chamber butt of cylinder body has the uide bushing, uide bushing inner chamber sliding connection has the plunger, the cylinder body port is equipped with sealed lid, sealed lid includes connecting portion, first sealing, second sealing and convex part, first sealing and second sealing are established in the connecting portion bottom surface, first sealing inboard is equipped with the packing ring, second sealing outside middle part is equipped with the seal groove, be equipped with first oil storage chamber in the second sealing, be equipped with the sealing oil in first oil storage chamber and the seal groove, second sealing lower extreme is equipped with the bulge loop, the convex part inboard is equipped with the dirt ring. The utility model discloses a sealed leakproofness that covers the improvement device, the packing ring on the first sealing can laminate the cylinder body and fill the clearance between sealed lid and the cylinder body and improve the gas tightness, further improves the leakproofness through seal groove and sealed oil, and the dust ring prevents that the dust from getting into in the cylinder body, and the cooperation of bulge loop and recess makes sealed lid and cylinder body fastening.
Description
Technical Field
The utility model belongs to the technical field of air spring equipment technique and specifically relates to a nitrogen spring of high leakproofness.
Background
The special nitrogen spring for the die is called a stamping die nitrogen spring or a nitrogen cylinder for short, is a novel elastic component taking high-pressure nitrogen as a working medium, and has the advantages of small volume, large elasticity, long stroke, stable work, precise manufacture, long service life and gentle elasticity curve, and does not need pre-tightening, etc., it has the work that the conventional elastic components such as metal spring, rubber and air cushion are difficult to accomplish, simplifies the design and manufacture of the die, is convenient for the installation and adjustment of the die, prolongs the service life of the die, ensures the stability of the product quality, can also be designed into a nitrogen spring system to participate in the work as a part of the die, the pressure can be conveniently kept constant and delayed in the system, the elastic component is a new generation of optimal elastic component with flexible performance, at present, the sealing performance of the nitrogen spring is still not perfect, and the sealing performance of some nitrogen springs is poor.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior nitrogen spring, the utility model provides a nitrogen spring with high sealing performance.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a nitrogen spring of high leakproofness, comprising a cylinder body, the inner chamber butt of cylinder body has the uide bushing, uide bushing inner chamber sliding connection has the plunger, the cylinder body port is provided with the sealed lid through the bolt fastening, sealed lid is run through to the plunger upper end, sealed lid includes connecting portion, first sealing, second sealing and convex part, first sealing and second sealing set up in the connecting portion bottom surface, first sealing sets up the outside at the second sealing, first sealing inboard is provided with the packing ring, second sealing outside middle part is provided with at least one seal groove, be provided with the first oil storage chamber of being connected with the seal groove top in the second sealing, be provided with sealing oil in first oil storage chamber and the seal groove, second sealing lower extreme is provided with the bulge loop, the convex part sets up at the connecting portion top surface, the convex part inboard is provided with the dirt ring.
According to the utility model discloses a further embodiment, further include that the cylinder body is inside to be provided with the recess that agrees with the bulge loop.
According to the utility model discloses a further embodiment, further include that second sealing layer outside middle part is provided with one or more seal groove.
According to the utility model discloses a further embodiment, further include that first oil storage chamber passes through first oil duct and seal groove connection.
According to the utility model discloses a further embodiment includes and is provided with upper seal circle and lower seal circle between uide bushing and the cylinder body, be provided with between upper seal circle and the lower seal circle with the oil cooling chamber of cylinder body butt, be provided with in the uide bushing with the second oil storage chamber of plunger butt, connect through the second oil duct between oil cooling chamber and the second oil storage chamber, be provided with lubricating oil in the second oil storage chamber.
According to the utility model discloses a cylinder body bottom surface is provided with the inflation valve, and the cylinder body bottom is provided with the plug screw of being connected with the inflation valve, and the plug screw setting is provided with the screw hole in cylinder body bottom left side, cylinder body bottom right side.
According to another embodiment of the present invention, the piston is disposed at the bottom of the plunger.
According to another embodiment of the present invention, further comprising the space between the first sealing portion and the second sealing portion is equal to the wall thickness of the cylinder body.
The utility model has the advantages that: the utility model discloses a sealed leakproofness that covers the improvement device, the packing ring on the first sealing can laminate the cylinder body and fill the clearance between sealed lid and the cylinder body and improve the gas tightness, further improves the leakproofness through seal groove and sealed oil, and the dust ring prevents that the dust from getting into in the cylinder body, and the cooperation of bulge loop and recess makes sealed lid and cylinder body fastening.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a cylinder body, 2, a guide sleeve, 3, a plunger, 4, a bolt, 5, a sealing cover, 6, a connecting part, 7, a first sealing part, 8, a second sealing part, 9, a convex part, 10, a gasket, 11, a sealing groove, 12, a first oil storage cavity, 13, sealing oil, 14, a convex ring, 15, a dust ring, 16, a groove, 17, a first oil channel, 18, an upper sealing ring, 19, a lower sealing ring, 20, an oil cooling chamber, 21, a second oil storage cavity, 22, a second oil channel, 23, lubricating oil, 24, an inflation valve, 25, a screw plug, 26, a threaded hole, 27 and a piston.
Detailed Description
FIG. 1 is a schematic structural diagram of the present invention, a nitrogen spring with high sealing performance, comprising a cylinder body 1, a guide sleeve 2 is abutted against an inner cavity of the cylinder body 1, a plunger 3 is slidably connected to an inner cavity of the guide sleeve 2, a port of the cylinder body 1 is provided with a sealing cover 5 fixed by a bolt 4, an upper end of the plunger 3 penetrates through the sealing cover 5, the sealing cover 5 comprises a connecting portion 6, a first sealing portion 7, a second sealing portion 8 and a convex portion 9, the first sealing portion 7 and the second sealing portion 8 are arranged at a bottom surface of the connecting portion 6, the first sealing portion 7 is arranged at an outer side of the second sealing portion 8, a gasket 10 is arranged at an inner side of the first sealing portion 7, at least one sealing groove 11 is arranged at a middle portion of an outer side of the second sealing layer, a first oil storage chamber 12 connected with a top end of the sealing groove 11 is arranged in the second sealing layer, sealing oil 13 is, convex part 9 sets up at connecting portion 6 top surfaces, and convex part 9 inboard is provided with dust ring 15, the utility model discloses a sealed lid 5 improves the leakproofness of device, and the clearance between sealed lid 5 and the cylinder body 1 is filled to the packing ring 10 on the first sealing 7 can laminate cylinder body 1 improves the gas tightness, further improves the leakproofness through seal groove 11 and sealing oil, and dust ring 15 prevents that the dust from getting into in the cylinder body 1, and the cooperation of bulge loop 14 and recess 16 makes sealed lid and cylinder body fastening.
The oil cooling device is characterized in that a groove 16 matched with the convex ring 14 is formed in the cylinder body 1, one or more sealing grooves 11 are formed in the middle of the outer side of the second sealing layer, the first oil storage cavity 12 is connected with the sealing grooves 11 through a first oil duct 17, an upper sealing ring 18 and a lower sealing ring 19 are arranged between the guide sleeve 2 and the cylinder body 1, an oil cooling chamber 20 abutted against the cylinder body 1 is arranged between the upper sealing ring 18 and the lower sealing ring 19, a second oil storage cavity 21 abutted against the plunger 3 is arranged in the guide sleeve 2, the oil cooling chamber 20 is connected with the second oil storage cavity 21 through a second oil duct 22, lubricating oil 2 is arranged in the second oil storage cavity 21, an inflation valve 24 is arranged on the bottom surface of the cylinder body 1, a plug screw 25 connected with the inflation valve 24 is arranged at the bottom of the cylinder body 1, the plug screw 25 is arranged on the left side of the bottom of the cylinder body 1, the distance between the first sealing part 7 and the second sealing part 8 is equal to the wall thickness of the cylinder body 1.
The working principle is as follows: through the inner chamber butt at cylinder body 1 has uide bushing 2, the inner chamber sliding connection of uide bushing 2 has plunger 3, and lubricating oil 23 gets into oil cooling chamber 20 internal cooling through second oil duct 22 in the second oil storage chamber 21, and when plunger 3 slided from top to bottom in uide bushing 2, lubricating oil 23 improved slip efficiency.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A high-sealing-performance nitrogen spring comprises a cylinder body (1) and is characterized in that a guide sleeve (2) is abutted to an inner cavity of the cylinder body (1), a plunger (3) is connected to the inner cavity of the guide sleeve (2) in a sliding mode, a sealing cover (5) fixed through a bolt (4) is arranged at a port of the cylinder body (1), the upper end of the plunger (3) penetrates through the sealing cover (5), the sealing cover (5) comprises a connecting portion (6), a first sealing portion (7), a second sealing portion (8) and a convex portion (9), the first sealing portion (7) and the second sealing portion (8) are arranged on the bottom surface of the connecting portion (6), the first sealing portion (7) is arranged on the outer side of the second sealing portion (8), a gasket (10) is arranged on the inner side of the first sealing portion (7), at least one sealing groove (11) is arranged in the middle portion of the outer side of the second sealing layer, a first oil storage, sealing oil (13) is arranged in the first oil storage cavity (12) and the sealing groove (11), a convex ring (14) is arranged at the lower end of the second sealing layer, the convex part (9) is arranged on the top surface of the connecting part (6), and a dust ring (15) is arranged on the inner side of the convex part (9).
2. A highly sealed nitrogen spring as claimed in claim 1, wherein said cylinder (1) is provided with a groove (16) on its inside for engaging with said collar (14).
3. The nitrogen spring with high sealing performance according to claim 1, wherein one or more sealing grooves (11) are formed in the middle of the outer side of the second sealing layer.
4. The nitrogen spring with high sealing performance as claimed in claim 1, wherein the first oil storage chamber (12) is connected with the sealing groove (11) through a first oil passage (17).
5. The nitrogen spring with high sealing performance according to claim 1, wherein an upper sealing ring (18) and a lower sealing ring (19) are arranged between the guide sleeve (2) and the cylinder body (1), an oil cooling chamber (20) abutted against the cylinder body (1) is arranged between the upper sealing ring (18) and the lower sealing ring (19), a second oil storage chamber (21) abutted against the plunger (3) is arranged in the guide sleeve (2), the oil cooling chamber (20) and the second oil storage chamber (21) are connected through a second oil duct (22), and lubricating oil (23) is arranged in the second oil storage chamber (21).
6. The nitrogen spring with high sealing performance as claimed in claim 1, wherein an inflation valve (24) is arranged on the bottom surface of the cylinder body (1), a screw plug (25) connected with the inflation valve (24) is arranged at the bottom of the cylinder body (1), the screw plug (25) is arranged on the left side of the bottom of the cylinder body (1), and a threaded hole (26) is arranged on the right side of the bottom of the cylinder body (1).
7. A high-tightness nitrogen spring according to claim 1, wherein a piston (27) is provided at the bottom of the plunger (3).
8. The nitrogen spring with high sealing performance as claimed in claim 1, wherein the distance between the first sealing portion (7) and the second sealing portion (8) is equal to the wall thickness of the cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921033328.8U CN210240420U (en) | 2019-07-03 | 2019-07-03 | Nitrogen spring of high leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921033328.8U CN210240420U (en) | 2019-07-03 | 2019-07-03 | Nitrogen spring of high leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240420U true CN210240420U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921033328.8U Active CN210240420U (en) | 2019-07-03 | 2019-07-03 | Nitrogen spring of high leakproofness |
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| Country | Link |
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| CN (1) | CN210240420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108670A (en) * | 2023-10-23 | 2023-11-24 | 常州市东力机械有限公司 | Nitrogen spring with quick-change mechanism |
-
2019
- 2019-07-03 CN CN201921033328.8U patent/CN210240420U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108670A (en) * | 2023-10-23 | 2023-11-24 | 常州市东力机械有限公司 | Nitrogen spring with quick-change mechanism |
| CN117108670B (en) * | 2023-10-23 | 2023-12-22 | 常州市东力机械有限公司 | Nitrogen spring with quick-change mechanism |
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