CN202391863U - Mechanical throttling and buffering structure used for hydraulic cylinder - Google Patents
Mechanical throttling and buffering structure used for hydraulic cylinder Download PDFInfo
- Publication number
- CN202391863U CN202391863U CN2011205265585U CN201120526558U CN202391863U CN 202391863 U CN202391863 U CN 202391863U CN 2011205265585 U CN2011205265585 U CN 2011205265585U CN 201120526558 U CN201120526558 U CN 201120526558U CN 202391863 U CN202391863 U CN 202391863U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil cylinder
- piston
- end cap
- pipe
- 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
Landscapes
- Actuator (AREA)
Abstract
The utility model relates to a hydraulic cylinder, in particular to a mechanical throttling and buffering structure used for the hydraulic cylinder, which comprises a left oil cylinder end cap, a piston, an oil cylinder, a first pipe joint, a second pipe joint, a right oil cylinder end cap, an upper oil pipe and a lower oil pipe. A left side of the oil cylinder is fixed with the left oil cylinder end cap, a right side of the oil cylinder is fixed with the right oil cylinder end cap, the piston penetrates through the oil cylinder, the first pipe joint and the second pipe joint are fixed onto a right piston end face and communicated with the upper oil pipe and the lower oil pipe in the piston in a positioning manner, a first one-way valve is fixed onto a left piston end face and connected with the upper oil pipe, a first conical flow-limiting pin is fixed onto an inner wall of the left oil cylinder end cap, a second conical flow-limiting pin is fixed onto an inner wall of the right oil cylinder end cap, and a second one-way valve is fixed onto the right piston end face and connected with the lower oil pipe in a positioning manner. The mechanical throttling and buffering structure is used for the hydraulic cylinder, the oil cylinder piston approaches the bottom slowly when being ready to approach the bottom of the oil cylinder so as to prevent the oil cylinder from rigid shock, so that working stability of the oil cylinder is improved while service life thereof is prolonged.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder, and especially a kind of oil hydraulic cylinder is with mechanical type throttling buffer structure.
Background technique
In engineering machinery, adopt oil hydraulic cylinder as the executive component in the hydraulic system in a large number, and as the motion rod member in the engineering machinery structure; In general, when each mechanism kinematic action of engineering machinery, always hope rod member stable action, reliable; Do not stop rapidly suddenly; In order to avoid cause impact and the damage to mechanism, but common hydraulic cylinder piston has mechanical shock when being fed into two terminations of cylinder body, has not only influenced the oil cylinder life-span but also has influenced the performance of the parts that use this oil hydraulic cylinder.
The model utility content
Can't avoid the deficiency of mechanical shock in order to overcome existing oil hydraulic cylinder, the utility model provides a kind of oil hydraulic cylinder with mechanical type throttling buffer structure.
The utility model solves the technological scheme that its technical problem adopted: a kind of oil hydraulic cylinder is with mechanical type throttling buffer structure; Comprise oil cylinder left end cap, piston, cylinder body, pipe joint one, pipe joint two, oil cylinder right end cap, go up oil pipe and following oil pipe; The cylinder body left side and oil cylinder left end cap are fixed, and the right and oil cylinder right end cap are fixed, and piston passes cylinder body; Pipe joint one is fixed on the piston right side with pipe joint two; And locate with following oil pipe and be communicated with the last oil pipe in the piston, one-way valve one is fixed on the piston left side and also is connected with last oil pipe, and current limliting taper pin one is fixed on the oil cylinder left end cap inwall; Current limliting taper pin two is fixed on the inwall of oil cylinder right end cap, and one-way valve two is fixed on the upper and lower oil pipe in piston right side and is located by connecting.
According to another embodiment of the utility model, comprise that further one-way valve one and one-way valve two are built-in with the steel ball pressure spring.
According to another embodiment of the utility model, further comprise current limliting taper pin one and current limliting taper pin two cone can with the little Spielpassung of oilhole of last oil pipe and following oil pipe.
The beneficial effect of the utility model is, this oil hydraulic cylinder utilizes mechanical type throttling buffer structure, makes oil cylinder piston soon near the oil cylinder bottom time, slowly avoid the rigid impulse of oil cylinder near the bottom, thus the working stability and the working life of having improved oil cylinder.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
1. one-way valves one among the figure, 2. the current limliting taper pin one, 3. oil cylinder left end cap, 4. piston, 5. cylinder body, 6. pipe joint one, and 7. pipe joint two, 8. oil cylinder right end cap, 9. the current limliting taper pin two, 10. oil pipe on the one-way valve two, 11., 12. times oil pipes.
Embodiment
Like Fig. 1 is the structural representation of the utility model; A kind of oil hydraulic cylinder comprises oil cylinder left end cap 3, piston 4, cylinder body 5, pipe joint 1, pipe joint 27, oil cylinder right end cap 8, goes up oil pipe 11 and following oil pipe 12 with mechanical type throttling buffer structure, and cylinder body 5 left sides and oil cylinder left end cap 3 are fixing; The right and oil cylinder right end cap 8 are fixing; Piston 4 passes cylinder body 5, and pipe joint 1 is fixed on piston 4 right sides with pipe joint 27, and is communicated with following oil pipe 12 location with piston 4 interior last oil pipes 11; One-way valve 1 is fixed on piston 4 left sides and is connected with last oil pipe 11; Current limliting taper pin 1 is fixed on oil cylinder left end cap 3 inwalls, and current limliting taper pin 29 is fixed on the inwall of oil cylinder right end cap 8, and one-way valve 2 10 is fixed on piston 4 right sides and with following oil pipe 12 and is located by connecting; One-way valve 1 is built-in with the steel ball pressure spring with one-way valve 2 10, the cone of current limliting taper pin 1 and current limliting taper pin 29 can with the little Spielpassung of oilhole of last oil pipe 11 and following oil pipe 12.
When feeding pressure oil in the pipe joint 1, pressure oil is opened one-way valve through the steel ball pressure spring in the one-way valve 1, and fluid gets into the left chamber of cylinder body 5; When the thrust that receives fluid when oil cylinder piston 4 was moved a little a little to the right, the current limliting taper pin 2 that is fixed on the inner side surface of oil cylinder left end end cap 3 began from the oilhole of piston 4 left sides, to withdraw from, and this moment, pressure oil also got into the left chamber of cylinder body 5 through oilhole; But because the conical section major part of current limliting taper pin 2 is still in oilhole, so captured area is less, flow is also little; Pressure oil mainly gets into from one-way valve 1; Along with further moving to right of oil cylinder piston 4, the conical section that is fixed on the current limliting taper pin 2 on the oil cylinder left end end cap 3 breaks away from oilhole gradually, and the pressure oil flow through oilhole increases gradually; Oil cylinder piston 4 moves to right and quickens to get at last to travel at the uniform speed the stage; Meanwhile the fluid of right cavity of cylinder is by flowing back to fuel tank from the oilhole of piston 4 right sides through pipe joint 27, and the inner side surface that runs to oil cylinder right-hand member end cap 8 to the right when oil cylinder piston 4 is during near the right side of piston 4, and the conical section of current limliting taper pin 9 that is fixed on the inner side surface of oil cylinder right-hand member end cap 8 begins to get in the oilhole; The captured area of oil drainage hole reduces gradually; The oil pressure in the right chamber of oil cylinder constantly rises, and the motion speed of oil cylinder piston 4 begins to continue to descend, and breasts the tape with slow speeds at last; The right side of oil cylinder piston 4 is the inner side surface of stretch oil cylinder right-hand member end cap 8 reposefully, so far is the half the of a complete work cycle; When oil cylinder piston 4 switching-overs, feed pressure oil in the pipe joint 27, pressure oil is opened one-way valve 2 10 through the steel ball pressure spring in the one-way valve 2 10; Fluid gets into the right chamber of oil cylinder, and oil cylinder piston 4 begins to move to left, when a little leaves oilhole when the conical section of the current limliting taper pin 9 of the inner side surface that is fixed on oil cylinder right-hand member end cap 8; Pressure oil also gets into the right chamber of cylinder body 5 through oilhole, just captured area is less, and flow is also little; Pressure oil mainly gets into from one-way valve 2 10; Along with further moving to left of oil cylinder piston 4, the conical section of current limliting taper pin 9 that is fixed on the inner side surface of oil cylinder right-hand member end cap 8 breaks away from oilhole gradually, and the pressure oil flow through oilhole increases gradually; Oil cylinder piston 4 moves to left and quickens to get at last to travel at the uniform speed the stage; Meanwhile the fluid in chamber, an oil cylinder left side flows back to fuel tank from the oilhole of piston 4 left sides through pipe joint 1, and the inner side surface that runs to oil cylinder left end end cap 3 left when oil cylinder piston 4 is during near the left side of piston 4, and the current limliting taper pin 2 that is fixed on oil cylinder left end end cap 3 inner side surfaces begins to get in the oilhole; The captured area of oil drainage hole reduces gradually; The oil pressure in cylinder body 5 left chambeies constantly rises, and the motion speed of oil cylinder piston 4 begins to continue to descend, and breasts the tape with slow speeds at last; The left side of oil cylinder piston 4 is the inner side surface of stretch oil cylinder left end end cap 3 reposefully, and so far a complete work cycle is accomplished.This oil hydraulic cylinder has played fabulous buffer function through two current limliting taper pins and two one-way valve synergy, has avoided the rigid impulse of oil cylinder, thereby has improved the working stability and the working life of oil cylinder.
Claims (1)
1. an oil hydraulic cylinder is with mechanical type throttling buffer structure; Comprise oil cylinder left end cap (3), piston (4), cylinder body (5), pipe joint one (6), pipe joint two (7), oil cylinder right end cap (8), go up oil pipe (11) and following oil pipe (12); Cylinder body (5) left side and oil cylinder left end cap (3) are fixing; The right and oil cylinder right end cap (8) are fixing, and piston (4) passes cylinder body (5), and pipe joint one (6) and pipe joint two (7) are fixed on piston (4) right side; And and piston (4) in last oil pipe (11) and following oil pipe (12) locate and be communicated with; It is characterized in that one-way valve one (1) is fixed on piston (4) left side and is connected with last oil pipe (11), current limliting taper pin one (2) is fixed on oil cylinder left end cap (3) inwall; Current limliting taper pin two (9) is fixed on the inwall of oil cylinder right end cap (8), and one-way valve two (10) is fixed on piston (4) right side and with following oil pipe (12) and is located by connecting.
2. a kind of oil hydraulic cylinder according to claim 1 is characterized in that with mechanical type throttling buffer structure one-way valve one (1) is built-in with the steel ball pressure spring with one-way valve two (10).
3. a kind of oil hydraulic cylinder according to claim 1 is characterized in that with mechanical type throttling buffer structure, the cone of current limliting taper pin one (2) and current limliting taper pin two (9) can with the little Spielpassung of oilhole of last oil pipe (11) and following oil pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205265585U CN202391863U (en) | 2011-12-16 | 2011-12-16 | Mechanical throttling and buffering structure used for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205265585U CN202391863U (en) | 2011-12-16 | 2011-12-16 | Mechanical throttling and buffering structure used for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391863U true CN202391863U (en) | 2012-08-22 |
Family
ID=46666792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205265585U Expired - Fee Related CN202391863U (en) | 2011-12-16 | 2011-12-16 | Mechanical throttling and buffering structure used for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391863U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434532A (en) * | 2011-12-16 | 2012-05-02 | 江苏新瑞重工科技有限公司 | Mechanical throttle buffering structure for hydraulic cylinder |
| CN106195072A (en) * | 2016-08-26 | 2016-12-07 | 天津市广山津达机械有限责任公司 | Two-way cylinder formula hydraulic brake caliper is inlayed in one |
| CN108349073A (en) * | 2015-11-10 | 2018-07-31 | 古斯塔夫.克劳克有限责任公司 | The piston and hydraulic tool by hydraulic loaded guided in cylinder |
-
2011
- 2011-12-16 CN CN2011205265585U patent/CN202391863U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434532A (en) * | 2011-12-16 | 2012-05-02 | 江苏新瑞重工科技有限公司 | Mechanical throttle buffering structure for hydraulic cylinder |
| CN108349073A (en) * | 2015-11-10 | 2018-07-31 | 古斯塔夫.克劳克有限责任公司 | The piston and hydraulic tool by hydraulic loaded guided in cylinder |
| CN106195072A (en) * | 2016-08-26 | 2016-12-07 | 天津市广山津达机械有限责任公司 | Two-way cylinder formula hydraulic brake caliper is inlayed in one |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203926221U (en) | Cushion cylinder | |
| CN103573749B (en) | Buffering hydraulic cylinder | |
| CN106593837A (en) | Variable control structure for hydraulic plunger pump and control method of variable control structure | |
| CN202391863U (en) | Mechanical throttling and buffering structure used for hydraulic cylinder | |
| CN203146480U (en) | Rod-less cavity side buffer structure for hydraulic cylinder | |
| CN204985126U (en) | Hydraulic rock drill's impact switching -over device | |
| CN201489118U (en) | Cylinder type vibroseis vibrator | |
| CN201330768Y (en) | Floating type cushioning device for hydraulic cylinder | |
| CN202579789U (en) | Jacking-pulling type hydraulic buffer | |
| CN203488193U (en) | Hydraulic control check valve | |
| CN102434532A (en) | Mechanical throttle buffering structure for hydraulic cylinder | |
| CN203394921U (en) | Plunger hydraulic cylinder | |
| CN201982401U (en) | Stable-speed air oil hydraulic cylinder | |
| CN104500399B (en) | The structure of compressor slide valve positioning control | |
| CN207695590U (en) | A kind of shooting supercharging device of die casting machine | |
| CN102304931B (en) | Hydraulic energy-saving control system and method for loader movable arm | |
| CN204312457U (en) | Oil recovery cylinder cushion device | |
| CN203374557U (en) | Rapid oil hydraulic cylinder | |
| CN201296938Y (en) | Large arm oil cylinder of excavator | |
| CN201232677Y (en) | Small arm oil cylinder for digging machine | |
| CN201401390Y (en) | Hydrocylinder buffering device | |
| CN201696267U (en) | Block-prevention oil pump | |
| CN204692230U (en) | There is the oil cylinder of two step velocitys | |
| CN202301249U (en) | Electro-hydraulic push rod-dedicated integrated valve bank | |
| CN204226808U (en) | The two cylinder reduction regulation segmented septum valve of interior air inlet |
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: 20120822 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |