CN202646701U - Double-motion stamping hydraulic cylinder seal structure - Google Patents
Double-motion stamping hydraulic cylinder seal structure Download PDFInfo
- Publication number
- CN202646701U CN202646701U CN 201220229847 CN201220229847U CN202646701U CN 202646701 U CN202646701 U CN 202646701U CN 201220229847 CN201220229847 CN 201220229847 CN 201220229847 U CN201220229847 U CN 201220229847U CN 202646701 U CN202646701 U CN 202646701U
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- hydraulic cylinder
- piston rod
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- main piston
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Abstract
The utility model discloses a double-motion stamping hydraulic cylinder seal structure and relates to the technical field of a hydraulic cylinder seal device. The seal structure comprises a main hydraulic cylinder and a subsidiary hydraulic cylinder, wherein a main piston rod is arranged inside the main hydraulic cylinder, a subsidiary piston rod is arranged inside the subsidiary hydraulic cylinder, a through hole is arranged in the subsidiary piston rod in the axial direction, and the main piston rod is sleeved inside the through hole in a penetrating mode. The seal structure is characterized in that three layers of seal devices are arranged between the main piston rod and the subsidiary piston rod. Each layer of seal devices comprises guide rings arranged at the top end position of the main piston rod and at the top end position of the subsidiary piston rod, a seal ring arranged at the tail end position of the subsidiary piston rod, and a Y-shaped seal ring arranged at the tail end position of the subsidiary piston rod. The double-motion stamping hydraulic cylinder seal structure has the advantages that due to the fact that the three layers of seal devices are arranged between the main piston rod and the subsidiary piston rod, the seal structure is good in seal performance so as to enable a hydraulic cylinder to achieve double-motion linkage; and the hydraulic cylinders are compact in structure, simple in assembling, and convenient to maintain and repair, and solve the problem for hydraulic intelligent control.
Description
[technical field]
The utility model relates to the sealing configuration of oil hydraulic cylinder, and in particular, the utility model relates to two action punching press hydraulic cylinder sealing structures.
[background technique]
Oil hydraulic cylinder is the energy conversion device that hydraulic energy is converted to mechanical energy, and it is the executive component in the hydraulic system, and is general for realizing linear reciprocating motion or swing.The sealing of oil hydraulic cylinder is referred to that mainly the quality of sealability will directly affect its service behaviour and efficient between piston rod and cylinder body, piston rod and the end cap and the sealing between cylinder body and the end cap.Therefore, require oil hydraulic cylinder under certain working pressure, to have good sealability, and sealability should increase automatically with the rising of working pressure, require in addition seal element to have the advantages such as simple in structure, that the life-span is long, frictional force is little.
In the hydraulic cylinder with double piston rods working procedure, not only require between piston rod and cylinder body, piston rod and the end cap and the favorable sealing property between cylinder body and the end cap, also require two sealings between the piston rod good, not allowing has seepage at connection part, stable to guarantee two oil pressure between the piston rod, do not interfere with each other.
[model utility content]
The purpose of this utility model is effectively to overcome the deficiency of above-mentioned technology, provides between two piston rods of a kind of assurance sealing good, and the stable two action punching press hydraulic cylinder sealing structures of oil pressure between two oil hydraulic cylinders.
The technical solution of the utility model is achieved in that it comprises master hydraulic cylinder and secondary oil hydraulic cylinder, be provided with main piston rod in the described master hydraulic cylinder, be provided with the sub-piston bar in the described secondary oil hydraulic cylinder, be provided with through hole on described sub-piston bar is axial, main piston rod is set in the through hole, its improvements are: be provided with three-layer sealed device between described main piston rod and the sub-piston bar, comprise the guide ring that is arranged on main piston rod and sub-piston masthead end position, be arranged on seal ring and y-type seal ring that the sub-piston rod end is put; Be bolted the disk that is provided with through hole in the middle of on the top of described sub-piston bar, the slightly larger in diameter of the through hole of described disk is in the diameter of main piston rod, be provided with groove in the through hole of the apical position of described sub-piston bar, guide ring is located in the groove, and fixed by disk, the internal surface of described guide ring is close to the outer surface of main piston rod;
Preferably, also be provided with a main piston in the described master hydraulic cylinder, be provided with this special envelope and seal ring between the inwall of described main piston and master hydraulic cylinder;
Preferably, described master hydraulic cylinder end is provided with a bonnet, is provided with the master hydraulic cylinder filler opening on the bonnet; Also be provided with the master hydraulic cylinder oil outlet on the described master hydraulic cylinder;
Preferably, also be provided with a sub-piston in the described secondary oil hydraulic cylinder, be provided with this special envelope and seal ring between the inwall of described sub-piston and secondary oil hydraulic cylinder;
Preferably, also be provided with a protecgulum on the described secondary oil hydraulic cylinder, be provided with this special envelope, Y type seal ring and dust ring between sub-piston bar and the protecgulum, be provided with the O RunddichtringO between the inwall of protecgulum and secondary oil hydraulic cylinder;
Preferably, also be provided with secondary hydraulic cylinder oil inlet and secondary oil hydraulic cylinder oil outlet on the described secondary oil hydraulic cylinder.
The beneficial effects of the utility model are: the utility model is by being provided with three-layer sealed device between main piston rod and sub-piston bar, be respectively the guide ring that is arranged on main piston rod and sub-piston masthead end position, be arranged on seal ring and y-type seal ring that the sub-piston rod end is put, therefore, favorable sealing property of the present utility model, so that an oil hydraulic cylinder is realized two action interlocks, hydraulic cylinder structure is compact, and assembling is simple, maintenance and repair is convenient, for hydraulic intelligent control has solved a difficult problem.
[description of drawings]
Fig. 1 is generalized section of the present utility model;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1.
[embodiment]
The utility model will be further described below in conjunction with drawings and Examples.
With reference to Fig. 1 and shown in Figure 2, the utility model has disclosed a kind of two action punching press hydraulic cylinder sealing structure, it comprises master hydraulic cylinder 1 and secondary oil hydraulic cylinder 2, be provided with main piston rod 101 in the master hydraulic cylinder 1, be provided with sub-piston bar 201 in the secondary oil hydraulic cylinder 2, described sub-piston bar 201 axially on be provided with through hole, 101 of main piston rods are set in the through hole, and be provided with three-layer sealed device between main piston rod 101 and the sub-piston bar 201, be respectively guide ring 3, seal ring 4 and y-type seal ring 5; Be fixed with the disk 7 that is provided with through hole in the middle of by bolt 6 on sub-piston bar 201 tops, the slightly larger in diameter of disk 7 is in the diameter of main piston rod 101, therefore main piston rod 101 can be directly passes from the centre of sub-piston bar 201, be provided with groove in the through hole of sub-piston bar 201 apical positions, above-mentioned guide ring 3 is located in the groove, and fixed by disk 7, the internal surface of guide ring 3 is close to the outer surface of main piston rod 101.
Also be provided with main piston 102 in the master hydraulic cylinder 1, be provided with this special envelope 80 and seal ring 40 between the inwall of main piston 102 and master hydraulic cylinder 1, master hydraulic cylinder 1 end is provided with bonnet 9, is provided with master hydraulic cylinder filler opening 10 on the bonnet 9, also is provided with master hydraulic cylinder oil outlet 11 on the master hydraulic cylinder 1.Also be provided with a sub-piston 202 in the secondary oil hydraulic cylinder 2, be provided with this special envelope 81 and seal ring 41 between the inwall of sub-piston 202 and secondary oil hydraulic cylinder 2, also be provided with a protecgulum 12 on the secondary oil hydraulic cylinder 2, be provided with this special envelope 8, Y type seal ring 5 and dust ring 13 between sub-piston bar 201 and the protecgulum 12, be provided with O RunddichtringO 14 between the inwall of protecgulum 12 and secondary oil hydraulic cylinder 2, also be provided with secondary hydraulic cylinder oil inlet 15 and secondary oil hydraulic cylinder oil outlet 16 on the secondary oil hydraulic cylinder 2.
The utility model is by being provided with three-layer sealed device between main piston rod and sub-piston bar, its favorable sealing property is so that an oil hydraulic cylinder is realized two action interlocks, hydraulic cylinder structure is compact, assembling is simple, and maintenance and repair is convenient, for hydraulic intelligent control has solved a difficult problem.
Described above only is preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to restriction of the present utility model.In technological thought category of the present utility model, various distortion and modification can appear, and the retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the utility model is protected.
Claims (6)
1. two action punching press hydraulic cylinder sealing structure, it comprises master hydraulic cylinder and secondary oil hydraulic cylinder, be provided with main piston rod in the described master hydraulic cylinder, be provided with the sub-piston bar in the described secondary oil hydraulic cylinder, be provided with through hole on described sub-piston bar is axial, main piston rod is set in the through hole, it is characterized in that: be provided with three-layer sealed device between described main piston rod and the sub-piston bar, comprise the guide ring that is arranged on main piston rod and sub-piston masthead end position, be arranged on seal ring and y-type seal ring that the sub-piston rod end is put; Be bolted the disk that is provided with through hole in the middle of on the top of described sub-piston bar, the slightly larger in diameter of the through hole of described disk is in the diameter of main piston rod, be provided with groove in the through hole of the apical position of described sub-piston bar, guide ring is located in the groove, and fixed by disk, the internal surface of described guide ring is close to the outer surface of main piston rod.
2. two action punching press hydraulic cylinder sealing structure according to claim 1 is characterized in that: also be provided with a main piston in the described master hydraulic cylinder, be provided with this special envelope and seal ring between the inwall of described main piston and master hydraulic cylinder.
3. two action punching press hydraulic cylinder sealing structure according to claim 2, it is characterized in that: described master hydraulic cylinder end is provided with a bonnet, is provided with the master hydraulic cylinder filler opening on the bonnet; Also be provided with the master hydraulic cylinder oil outlet on the described master hydraulic cylinder.
4. two action punching press hydraulic cylinder sealing structure according to claim 1 is characterized in that: also be provided with a sub-piston in the described secondary oil hydraulic cylinder, be provided with this special envelope and seal ring between the inwall of described sub-piston and secondary oil hydraulic cylinder.
5. two action punching press hydraulic cylinder sealing structure according to claim 1, it is characterized in that: also be provided with a protecgulum on the described secondary oil hydraulic cylinder, be provided with this special envelope, Y type seal ring and dust ring between sub-piston bar and the protecgulum, be provided with the O RunddichtringO between the inwall of protecgulum and secondary oil hydraulic cylinder.
6. two action punching press hydraulic cylinder sealing structure according to claim 1 is characterized in that: also be provided with secondary hydraulic cylinder oil inlet and secondary oil hydraulic cylinder oil outlet on the described secondary oil hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229847 CN202646701U (en) | 2012-05-18 | 2012-05-18 | Double-motion stamping hydraulic cylinder seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229847 CN202646701U (en) | 2012-05-18 | 2012-05-18 | Double-motion stamping hydraulic cylinder seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646701U true CN202646701U (en) | 2013-01-02 |
Family
ID=47415810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220229847 Expired - Fee Related CN202646701U (en) | 2012-05-18 | 2012-05-18 | Double-motion stamping hydraulic cylinder seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065369A (en) * | 2015-07-29 | 2015-11-18 | 桂林橡胶设计院有限公司 | Built-up hydraulic cylinder and control system and control method thereof |
| CN113107998A (en) * | 2021-04-08 | 2021-07-13 | 玉环思安安全设备股份有限公司 | Brake caliper piston return device |
-
2012
- 2012-05-18 CN CN 201220229847 patent/CN202646701U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065369A (en) * | 2015-07-29 | 2015-11-18 | 桂林橡胶设计院有限公司 | Built-up hydraulic cylinder and control system and control method thereof |
| CN113107998A (en) * | 2021-04-08 | 2021-07-13 | 玉环思安安全设备股份有限公司 | Brake caliper piston return device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150518 |
|
| EXPY | Termination of patent right or utility model |