CN202833410U - Multi-stage hydro-cylinder with buffering function - Google Patents
Multi-stage hydro-cylinder with buffering function Download PDFInfo
- Publication number
- CN202833410U CN202833410U CN 201220404162 CN201220404162U CN202833410U CN 202833410 U CN202833410 U CN 202833410U CN 201220404162 CN201220404162 CN 201220404162 CN 201220404162 U CN201220404162 U CN 201220404162U CN 202833410 U CN202833410 U CN 202833410U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- stage
- hydro
- grades
- cylinder body
- 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
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a multi-stage hydro-cylinder with a buffering function. The multi-stage hydro-cylinder with the buffering function comprises an outer sleeve and a cylinder bottom. The outer sleeve is provided with a three-stage hydro-cylinder, a two-stage hydro-cylinder and a one-stage hydro-cylinder sequentially from outside to inside. The three-stage hydro-cylinder comprises a three-stage guide sleeve which is fixed on the front end of the outer sleeve and a three-stage hydro-cylinder body which slides along the inner wall of the outer sleeve, a three-stage damping ring body is fixedly arranged on the tail portion of the three-stage hydro-cylinder; the two-stage hydro-cylinder comprises a two-stage guide sleeve which is fixedly arranged on the front end of the three-stage hydro-cylinder body and a two-stage hydro-cylinder body which slides along the inner wall of the three-stage hydro-cylinder body, a two-stage damping ring body is fixedly arranged on the tail portion of the two-stage hydro-cylinder body; the one-stage hydro-cylinder comprises a one-stage guide sleeve which is fixedly arranged on the front end of the two-stage hydro-cylinder body and a one-stage hydro-cylinder body which slides along the inner wall of the two-stage hydro-cylinder body, a rod head is connected with the one-stage hydro-cylinder body, and an oil-hole A and an oil-hole B which are used for the in and out of the fuel are arranged on the rod head. The multi-stage hydro-cylinder with the buffering function has the advantages that by utilizing the sequential extensions and retractions of the three-stage hydro-cylinder, the two-stage hydro-cylinder and the one-stage hydro-cylinder, the working length of the fuel tank is prolonged, the working speed and operation stability are improved, the impact of hydro-cylinder retraction is reduced, and the utilization requirement of special industry is satisfied.
Description
Technical field
The utility model relates to technical field of hydraulic oil cylinder, especially a kind of multi-stage oil cylinder with pooling feature.
Background technique
Hydraulic jack is widely used in all trades and professions as a kind of power plant.In some special industry, lift cylinder in the shoveling oil cylinder of picture refuse storage area, the dump ram of dumping car, the equipment carrying crane span structure, all require oil cylinder to have long stroke, with the circulation of finishing the work of speed faster, obviously adopt the single-stage oil cylinder to be difficult to satisfy above-mentioned usage requirement, will certainly cause oil cylinder bulky, strengthen the manufacture difficulty of oil cylinder.Require steadily, can not have the occasion of greater impact in using simultaneously, oil cylinder must have pooling feature, avoids impacting, and improves the precision of oil cylinder operation.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, a kind of multi-stage oil cylinder with pooling feature of making stroke, realization quick-expansion than the farm labourer that has is provided.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of multi-stage oil cylinder with pooling feature, comprise outer sleeve, cylinder bottom, be provided with successively from outside to inside three grades of cylinders in the outer sleeve, secondary cylinder and first-stage cylinder, described three grades of cylinders comprise the three grade guide pin bushings fixing with the outer sleeve front end, three grades of cylinder bodies along the slip of outer sleeve inwall, three grades of cylinder body afterbodys are fixed with the three-stage damping ring body, secondary cylinder comprises the secondary guide pin bushing fixing with three grades of cylinder body front ends, secondary cylinder body along three grades of inboard wall of cylinder block slips, secondary cylinder body afterbody is fixed with secondary damping ring body, first-stage cylinder comprises the one-level guide pin bushing fixing with secondary cylinder body front end, one-level cylinder body along the slip of secondary inboard wall of cylinder block, one-level cylinder body front end is connected with the bar head, has A oilhole and the B oilhole of liquid in-out force feed on the bar head.
Further, described three grades of cylinder bodies comprise three grades of piston rods and three grades of pistons of integrative-structure, and the secondary cylinder body comprises second piston rod and the second piston of integrative-structure, and the one-level cylinder body comprises first stage piston bar and the first stage piston of integrative-structure.
The beneficial effects of the utility model are: the utility model is by successively elongation and the retraction of three grades of cylinders, secondary cylinder, first-stage cylinder, prolonged thus the oil cylinder active length, improved the stability of operating rate and oil cylinder operation, reduce oil cylinder stroke impact at the end, satisfied the usage requirement of special industry.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
42. 3 grades of pistons of 41. 3 grades of piston rods of 4. 3 grades of cylinder bodies of 3. 3 grades of guide pin bushings of 1. outer sleeves, 2. cylinder bottoms, 5. secondary guide pin bushings, 6. secondary cylinder bodies, 61. second piston rods, 62. second pistons, 7. one-level guide pin bushings, 8. one-level cylinder bodies, 81. first stage piston bars, 82. first stage pistons, 9. bar head 10.A oilhole 11.B oilholes, 12. three-stage damping ring bodies, 13. secondary damping ring bodies among the figure
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic representation that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of multi-stage oil cylinder with pooling feature as shown in Figure 1, comprise outer sleeve 1, cylinder bottom 2, be provided with successively from outside to inside three grades of cylinders in the outer sleeve 1, secondary cylinder and first-stage cylinder, described three grades of cylinders comprise the three grade guide pin bushings 3 fixing with outer sleeve 1 front end, three grades of cylinder bodies 4 along the slip of outer sleeve 1 inwall, secondary cylinder comprises the secondary guide pin bushing 5 fixing with three grades of cylinder body 4 front ends, secondary cylinder body 6 along three grades of cylinder body 4 inwalls slips, first-stage cylinder comprises the one-level guide pin bushing 7 fixing with secondary cylinder body 6 front ends, one-level cylinder body 8 along the slip of secondary cylinder body 6 inwalls, one-level cylinder body 8 front ends are connected with bar head 9, have A oilhole 10 and the B oilhole 11 of liquid in-out force feed on the bar head 9.
Be fixed with three-stage damping ring body 12 at three grades of cylinder body 4 afterbodys, be fixed with secondary damping ring body 13 at secondary cylinder body 6 afterbodys, when three grades of cylinders and secondary cylinder are return, rely on the effect of three-stage damping ring body 12 and secondary damping ring body 13, played effective buffer function, reduce oil cylinder and return fast in stroke impact at the end, improved the stability of oil cylinder operation.
Specifically, described three grades of cylinder bodies 4 comprise three grades of piston rods 41 and three grades of pistons 42 of integrative-structure, and secondary cylinder body 6 comprises second piston rod 61 and the second piston 62 of integrative-structure, and one-level cylinder body 8 comprises first stage piston bar 81 and the first stage piston 82 of integrative-structure.
Wherein, the connection rod chamber of above-mentioned A oilhole 10, the connection rodless cavity of B oilhole 11.
When oil cylinder extends, high pressure oil enters from B oilhole 11, oil pipe in being arranged on first stage piston bar 81 arrives the left side (direction among Fig. 1) of three grades of pistons 42, second piston 62, first stage piston 82, because the difference of piston action areas at different levels, descendingly promote successively three grades of piston rods 41 and stretch out to the right with respect to secondary cylinder body 6 with respect to three grades of cylinder bodies 4, first stage piston bar 81 with respect to outer sleeve 1, second piston rod 61, low pressure oil then flows out from A oilhole 10; When oil cylinder is retracted, high pressure oil enters from A oilhole 10, enter the rod chamber of one-level cylinder body 8, promote first stage piston bar 81 and retract, then high pressure oil enters the rod chamber of secondary cylinder body 6, promotes second piston rod 61 and retracts, last high pressure oil enters the rod chamber of three grades of cylinder bodies 4, promote three grades of piston rods 41 and retract, three-stage damping ring body 12 and 13 of secondary damping ring bodies have played effective buffer function, have reduced oil cylinder and have return fast in stroke impact at the end.Simultaneously, low pressure oil then flows out from B oilhole 11, finishes a work cycle.
Above-mentioned mode of execution only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in the protection domain of the present utility model.
Claims (2)
1. multi-stage oil cylinder with pooling feature, comprise outer sleeve (1), cylinder bottom (2), be provided with successively from outside to inside three grades of cylinders in the outer sleeve (1), secondary cylinder and first-stage cylinder, it is characterized in that: described three grades of cylinders comprise the three grade guide pin bushings (3) fixing with outer sleeve (1) front end, three grades of cylinder bodies (4) along the slip of outer sleeve (1) inwall, three grades of cylinder bodies (4) afterbody is fixed with three-stage damping ring body (12), secondary cylinder comprises the secondary guide pin bushing (5) fixing with three grades of cylinder bodies (4) front end, secondary cylinder body (6) along the slip of three grades of cylinder bodies (4) inwall, secondary cylinder body (6) afterbody is fixed with secondary damping ring body (13), first-stage cylinder comprises the one-level guide pin bushing (7) fixing with secondary cylinder body (6) front end, one-level cylinder body (8) along the slip of secondary cylinder body (6) inwall, one-level cylinder body (8) front end is connected with bar head (9), has A oilhole (10) and the B oilhole (11) of liquid in-out force feed on the bar head (9).
2. the multi-stage oil cylinder with pooling feature according to claim 1, it is characterized in that: described three grades of cylinder bodies (4) comprise three grades of piston rods (41) and three grades of pistons (42) of integrative-structure, secondary cylinder body (6) comprises second piston rod (61) and the second piston (62) of integrative-structure, and one-level cylinder body (8) comprises first stage piston bar (81) and the first stage piston (82) of integrative-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404162 CN202833410U (en) | 2012-08-15 | 2012-08-15 | Multi-stage hydro-cylinder with buffering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404162 CN202833410U (en) | 2012-08-15 | 2012-08-15 | Multi-stage hydro-cylinder with buffering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833410U true CN202833410U (en) | 2013-03-27 |
Family
ID=47945125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404162 Expired - Fee Related CN202833410U (en) | 2012-08-15 | 2012-08-15 | Multi-stage hydro-cylinder with buffering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833410U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291826A (en) * | 2013-06-25 | 2013-09-11 | 苏州唐氏机械制造有限公司 | Three-level buffer working method suitable for adjusting all levels of buffering sequences |
| CN104564905A (en) * | 2014-12-31 | 2015-04-29 | 中船重工中南装备有限责任公司 | Three-stage telescopic oil cylinder |
| CN105298982A (en) * | 2015-11-03 | 2016-02-03 | 内蒙古北方重工业集团有限公司 | Double-acting multi-stage telescopic oil cylinder |
| CN107387492A (en) * | 2017-09-21 | 2017-11-24 | 北京航天发射技术研究所 | A kind of multistage perpendicular hydraulic cylinder and its way to play for time |
| CN109026901A (en) * | 2018-09-06 | 2018-12-18 | 泸州市巨力液压有限公司 | Three-level cushion cylinder |
| CN110410381A (en) * | 2019-08-14 | 2019-11-05 | 北京特种机械研究所 | A kind of heavy duty multistage composite telescopic hydraulic cylinder |
| CN112360840A (en) * | 2020-11-30 | 2021-02-12 | 中船重工重庆液压机电有限公司 | Multistage hydraulic cylinder with buffer function |
-
2012
- 2012-08-15 CN CN 201220404162 patent/CN202833410U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291826A (en) * | 2013-06-25 | 2013-09-11 | 苏州唐氏机械制造有限公司 | Three-level buffer working method suitable for adjusting all levels of buffering sequences |
| CN104564905A (en) * | 2014-12-31 | 2015-04-29 | 中船重工中南装备有限责任公司 | Three-stage telescopic oil cylinder |
| CN105298982A (en) * | 2015-11-03 | 2016-02-03 | 内蒙古北方重工业集团有限公司 | Double-acting multi-stage telescopic oil cylinder |
| CN107387492A (en) * | 2017-09-21 | 2017-11-24 | 北京航天发射技术研究所 | A kind of multistage perpendicular hydraulic cylinder and its way to play for time |
| CN109026901A (en) * | 2018-09-06 | 2018-12-18 | 泸州市巨力液压有限公司 | Three-level cushion cylinder |
| CN110410381A (en) * | 2019-08-14 | 2019-11-05 | 北京特种机械研究所 | A kind of heavy duty multistage composite telescopic hydraulic cylinder |
| CN110410381B (en) * | 2019-08-14 | 2021-02-09 | 北京特种机械研究所 | Multi-stage composite telescopic hydraulic cylinder for heavy load |
| CN112360840A (en) * | 2020-11-30 | 2021-02-12 | 中船重工重庆液压机电有限公司 | Multistage hydraulic cylinder with buffer function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202833410U (en) | Multi-stage hydro-cylinder with buffering function | |
| CN102705291A (en) | Oil cylinder capable of passing oil by piston rod | |
| CN204625035U (en) | A kind of telescoping mechanism saving arm for hoisting crane four | |
| CN102134044B (en) | Suspension arm sequential stretching/retracting hydraulic system | |
| CN201496340U (en) | Multi-stage hydraulic cylinder with damping device of mining dumping truck, | |
| CN215950016U (en) | Double-medium air cushion buffer oil cylinder for implementing impact crushing of grab bucket or hammer | |
| CN102878148B (en) | Deflection-preventing multistage oil cylinder | |
| CN201597580U (en) | Dumper with stable legs | |
| CN201849407U (en) | Hydraulic lifting foldable ladder | |
| CN201350859Y (en) | Lifting mechanism for dump truck | |
| CN203297194U (en) | Lifting hydraulic cylinder for stepping cooling bed | |
| CN201982410U (en) | Single acting piston-cylinder with upper buffer function | |
| CN205820820U (en) | A kind of jaw of novel forklift | |
| CN201694957U (en) | Novel vertical lime kiln furnace | |
| CN202971389U (en) | Oil cylinder and multi-cylinder multi-stage telescopic arm serving as oil conveying pipe | |
| CN201671904U (en) | Oil cylinder specially used for short-stroke hollow piston rod type steel tube cold-drawing machine | |
| CN203702724U (en) | Lifting hydraulic oil cylinder of mining dumper | |
| CN202833412U (en) | Anti-deflection multilevel oil cylinder | |
| CN202579439U (en) | Oil cylinder with oil-flowing piston rod | |
| CN202418088U (en) | Oil cylinder used for tension straightening machine | |
| CN201934413U (en) | Oil cylinder internally provided with two auxiliary oil supplying passages | |
| CN202673834U (en) | Multi-stage single-acting hydraulic cylinder | |
| CN205096455U (en) | Multi -cored forging press of large -tonnage horizontal force | |
| CN201297378Y (en) | Piston rod of piston cylinder | |
| CN201390183Y (en) | Draw arm hook |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU CHANGLI TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER NAME: JIANGSU CHANGLI HYDRAULIC CYLINDER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213118 No. 111 Furong Road, Hengshan Town, Wujin District, Jiangsu, Changzhou Patentee after: JIANGSU CHANGLI TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 213118 No. 111 Furong Road, Hengshan Town, Wujin District, Jiangsu, Changzhou Patentee before: JIANGSU CHANGLI HYDRAULIC CYLINDER Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210815 |