CN202673832U - High-performance piston cylinder - Google Patents
High-performance piston cylinder Download PDFInfo
- Publication number
- CN202673832U CN202673832U CN 201220340630 CN201220340630U CN202673832U CN 202673832 U CN202673832 U CN 202673832U CN 201220340630 CN201220340630 CN 201220340630 CN 201220340630 U CN201220340630 U CN 201220340630U CN 202673832 U CN202673832 U CN 202673832U
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- CN
- China
- Prior art keywords
- piston
- cylinder
- guide sleeve
- performance
- cylinder barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Abstract
Provided is a high-performance piston cylinder. The high-performance piston cylinder comprises a cylinder body, a piston and a guide sleeve which is used to guide the piston, the guide sleeve is sealed and fixed in the cylinder body, and the guide sleeve is sealed and matched with the piston in a sliding mode. Compared with the prior art, the high-performance piston cylinder is capable of decreasing an excircle sealing system of the guide sleeve, eliminating a fit clearance between the guide sleeve and the cylinder body, enabling the structure to be stable, and effectively ensuring sealing performance and smooth operation of the piston. Meanwhile, the high-performance piston cylinder is good in use performance and long in service life.
Description
Technical field
The utility model relates to a kind of piston cylinder, relates in particular to a kind of high-performance piston cylinder.
Background technique
Piston cylinder is a kind of energy conversion device, be used for the conversion of the interior energy of fluid and mechanical energy, such as oil hydraulic cylinder, in hydraulic machinery equipment, oil hydraulic cylinder is as executive component, its working condition is complicated, working pressure is high, the piston offset loading force is larger, for guaranteeing being slidingly matched of cylinder body and piston, usually on cylinder body, also be provided with guide sleeve, be used for piston is led, be threaded but be generally between guide sleeve and the cylinder body in the prior art, have certain matching gap, and guide sleeve cylindrical sealing system need be set, make can produce between guide sleeve and the cylinder body to relatively move or irregular rocking, can't guarantee the smooth running of sealability and piston, Sealing and piston are fragile, the usability of piston cylinder is poor, and the life-span is short.
Therefore, for addressing the above problem, need to be improved the cylinder body of piston cylinder and the linkage structure between the guide sleeve, make stabilized structure between guide sleeve and the cylinder body, to guarantee the smooth running of sealability and piston, improve the usability of piston cylinder, prolong its working life.
The model utility content
In view of this, the purpose of this utility model provides a kind of high-performance piston cylinder, and stabilized structure between its cylinder body and the guide sleeve can effectively guarantee the smooth running of sealability and piston, and the usability of piston cylinder is better, and working life is of a specified duration.
High-performance piston cylinder of the present utility model, the guide sleeve that comprises cylinder body, piston and be used for piston is led, described guide sleeve is fixed in cylinder body by welded seal, is slidingly matched between guide sleeve and the piston and seals.
Further, be provided with bevel for welding on the face of weld of described guide sleeve and cylinder body;
Further, described cylinder body comprises cylinder barrel and cylinder cap, and cylinder cap is threaded connection and embeds an end that is fixed in cylinder barrel, and guide sleeve embeds the other end that is fixed in cylinder barrel; Described piston comprises piston plate and piston rod, and piston plate is arranged at that cylinder barrel is inner to be slidingly matched with inner wall of cylinder and to seal, and an end of piston rod is fixed in piston plate, and the other end is stretched out by the guide sleeve endoporus, interference fit between described guide sleeve and the cylinder body; On the external cylindrical surface that be positioned on the cylinder barrel end face relative with cylinder cap, cylinder cap embeds the cylinder barrel part, be provided with seal ring on the external cylindrical surface of piston plate and on the inner cylindrical surface of guide sleeve;
Further, described piston rod is the step axis body, and its end that is connected with piston plate is small end and is provided with screw thread; Described piston plate is annular slab, is placed in the small end of piston rod and is pressed in location, step surface place by nut;
Further, described piston plate, piston rod small-end, cylinder barrel and cylinder cap surround pressure chamber's I; Piston plate, piston rod, cylinder barrel and guide sleeve surround pressure chamber's II; Be positioned at corresponding with the pressure chamber's I fluid through-hole I that is provided with on the cylinder cap, be positioned at corresponding with the pressure chamber's II fluid through-hole II that is provided with on the cylinder barrel wall.
The beneficial effects of the utility model are: high-performance piston cylinder of the present utility model, fix by welded seal between its cylinder body and the guide sleeve, compared with prior art can deduct guide sleeve cylindrical sealing system, eliminated the matching gap between guide sleeve and the cylinder body, make stabilized structure, can effectively guarantee the smooth running of sealability and piston, the usability of piston cylinder is better, and working life is of a specified duration.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the high-performance piston cylinder of present embodiment, the guide sleeve 3 that comprises cylinder body 1, piston 2 and be used for piston 2 is led, described guide sleeve 3 is fixed in cylinder body 1 by welded seal, be slidingly matched between guide sleeve 3 and the piston 2 and seal, compared with prior art can deduct guide sleeve cylindrical sealing system, eliminated the matching gap between guide sleeve and the cylinder body, make stabilized structure, can effectively guarantee the smooth running of sealability and piston, the usability of piston cylinder is better, and working life is of a specified duration.
In the present embodiment, be provided with bevel for welding 4 on the face of weld of described guide sleeve 3 and cylinder body 1, can guarantee through welding and defective workmanship do not occur, firm welding, bearing capacity is strong, and sealing is reliable.
In the present embodiment, described cylinder body 1 comprises cylinder barrel 1a and cylinder cap 1b, and cylinder cap 1b is threaded connection and embeds an end that is fixed in cylinder barrel 1a, and guide sleeve 3 embeds the other end that is fixed in cylinder barrel 1a; Described piston 2 comprises piston plate 2a and piston rod 2b, piston plate 2a is arranged at that cylinder barrel 1a is inner to be slidingly matched with cylinder barrel 1a inwall and to seal, the end of piston rod 2b is fixed in piston plate 2a, and the other end is stretched out by guide sleeve 3 endoporus, interference fit between described guide sleeve 3 and the cylinder body 1; On the external cylindrical surface that be positioned on the cylinder barrel 1a end face relative with cylinder cap 1b, cylinder cap 1b embeds cylinder barrel 1a part, be provided with seal ring 5 on the external cylindrical surface of piston plate 2a and on the inner cylindrical surface of guide sleeve 3, reasonable in design, each joint stable connection, easy accessibility, sealing are reliable, and usability is good.
In the present embodiment, described piston rod 2b is the step axis body, and its end that is connected with piston plate 2a is small end and is provided with screw thread; Described piston plate 2a is annular slab, be placed in the small end of piston rod 2b and be pressed in location, step surface place by nut 6, pulling down cylinder cap 1b and nut 6 just can split piston plate 2a and piston rod 2b and take out in the respective end of cylinder barrel 1a, contrary operation gets final product during installation, dismounting is more convenient, stabilized structure, usability is good.
In the present embodiment, described piston plate 2a, piston rod 2b small end, cylinder barrel 1a and cylinder cap 1b surround pressure chamber's I 7; Piston plate 2a, piston rod 2b, cylinder barrel 1a and guide sleeve 3 surround pressure chamber's II 8; Be positioned at upper corresponding with the pressure chamber's I 7 fluid through-hole I 9 that is provided with of cylinder cap 1b, be positioned on the cylinder barrel 1a wall corresponding with the pressure chamber's II 8 fluid through-hole II 10 that is provided with, piston cylinder structure is compact, can carry out extension and contraction control, is widely used on press, engineering machinery and the farm machinery.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1. high-performance piston cylinder, it is characterized in that: the guide sleeve (3) that comprises cylinder body (1), piston (2) and be used for piston (2) is led, described guide sleeve (3) is fixed in cylinder body (1) by welded seal, is slidingly matched between guide sleeve (3) and the piston (2) and seals.
2. high-performance piston cylinder according to claim 1 is characterized in that: be provided with bevel for welding (4) on the face of weld of described guide sleeve (3) and cylinder body (1).
3. high-performance piston cylinder according to claim 2, it is characterized in that: described cylinder body (1) comprises cylinder barrel (1a) and cylinder cap (1b), cylinder cap (1b) is threaded connection and embeds an end that is fixed in cylinder barrel (1a), and guide sleeve (3) embeds the other end that is fixed in cylinder barrel (1a); Described piston (2) comprises piston plate (2a) and piston rod (2b), piston plate (2a) is arranged at that cylinder barrel (1a) is inner to be slidingly matched with cylinder barrel (1a) inwall and to seal, one end of piston rod (2b) is fixed in piston plate (2a), the other end is stretched out by guide sleeve (3) endoporus, interference fit between described guide sleeve (3) and the cylinder body (1); On the external cylindrical surface that be positioned on cylinder barrel (1a) end face relative with cylinder cap (1b), cylinder cap (1b) embeds cylinder barrel (1a) part, be provided with seal ring (5) on the external cylindrical surface of piston plate (2a) and on the inner cylindrical surface of guide sleeve (3).
4. high-performance piston cylinder according to claim 3, it is characterized in that: described piston rod (2b) is the step axis body, and its end that is connected with piston plate (2a) is small end and is provided with screw thread; Described piston plate (2a) is annular slab, is placed in the small end of piston rod (2b) and is pressed in location, step surface place by nut (6).
5. high-performance piston cylinder according to claim 4, it is characterized in that: described piston plate (2a), piston rod (2b) small end, cylinder barrel (1a) and cylinder cap (1b) surround pressure chamber's I (7); Piston plate (2a), piston rod (2b), cylinder barrel (1a) and guide sleeve (3) surround pressure chamber's II (8); Be positioned at upper corresponding with pressure chamber's I (7) the fluid through-hole I (9) that is provided with of cylinder cap (1b), be positioned at corresponding with pressure chamber's II (8) the fluid through-hole II (10) that is provided with on cylinder barrel (1a) wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340630 CN202673832U (en) | 2012-07-13 | 2012-07-13 | High-performance piston cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340630 CN202673832U (en) | 2012-07-13 | 2012-07-13 | High-performance piston cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673832U true CN202673832U (en) | 2013-01-16 |
Family
ID=47494740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220340630 Expired - Fee Related CN202673832U (en) | 2012-07-13 | 2012-07-13 | High-performance piston cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507629A (en) * | 2013-05-16 | 2015-04-08 | 费斯托股份有限两合公司 | Drive unit of a fluid-actuated linear drive and method for the production thereof |
-
2012
- 2012-07-13 CN CN 201220340630 patent/CN202673832U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507629A (en) * | 2013-05-16 | 2015-04-08 | 费斯托股份有限两合公司 | Drive unit of a fluid-actuated linear drive and method for the production thereof |
| CN104507629B (en) * | 2013-05-16 | 2017-04-26 | 费斯托股份有限两合公司 | Drive unit of a fluid-actuated linear drive and method for the production thereof |
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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: 20130116 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |