CN205446255U - Hydraulic cylinder structure - Google Patents
Hydraulic cylinder structure Download PDFInfo
- Publication number
- CN205446255U CN205446255U CN201620246076.7U CN201620246076U CN205446255U CN 205446255 U CN205446255 U CN 205446255U CN 201620246076 U CN201620246076 U CN 201620246076U CN 205446255 U CN205446255 U CN 205446255U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- hydraulic cylinder
- sealing ring
- cooling tube
- collet
- 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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Abstract
The utility model discloses a hydraulic cylinder structure belongs to hydraulic equipment technical field. Hydraulic cylinder structure includes cylinder body, piston, piston rod, high pressure spring, U -type sealing ring, O type sealing washer, radiation shield casing, cooling tube, cooling liquid exit, keeps away the dirt cover. The utility model discloses simple structure can play the effect of buffering, has good sealing performance and heat dispersion again, can work steadily.
Description
Technical field
This utility model relates to a kind of hydraulic cylinder structure, belongs to technical field of hydraulic equipment.
Background technology
During hydraulic cylinder high speed operation, there is factors can affect the job stability of cylinder device, such as (1) is if piston is direct and the end cap of hydraulic cylinder bumps against, can be under the effect of inertia force and hydraulic coupling, damage end cap, and bigger shock loading can be produced, affect the stability of hydraulic system；(2) quality of hydraulic cylinder sealing performance directly affects the service behaviour of hydraulic cylinder, affects the normal use of whole equipment, therefore, the sealing problem of hydraulic cylinder it is critical that；(3) hydraulic cylinder can produce substantial amounts of heat in the course of the work, affects the service life of hydraulic cylinder.
Utility model content
For overcoming drawbacks described above, this utility model aims to provide a kind of hydraulic cylinder structure, including cylinder body, piston, piston rod, high pressure spring, U-shaped sealing ring, O RunddichtringO, collet, cooling tube, cooling liquid outlet, keeps away dirt set；The periphery of described piston is provided with sealing ring mounting groove, and U-shaped sealing ring is arranged in sealing ring mounting groove, and O RunddichtringO is arranged between inboard wall of cylinder block and U-shaped sealing ring；Described high pressure spring is arranged on cylinder base；Described collet is located at cylinder body periphery, has cavity, described cavity to be provided with compressed-air actuated import and export between collet and cylinder body；Described piston rod has inner chamber, and the end of piston rod is fixing connects cooling tube, and cooling tube is inserted into piston rod cavity and inner space, the formation coolant return flow line, space between outer wall and the inwall of piston rod of cooling tube；Described one end keeping away dirt set is fixed on cylinder body, and the other end is fixing on the piston rod.
Described high pressure spring is arranged on cylinder base by axle check ring.
Described collet uses heat-barrier material.
This utility model also provides for a kind of hydraulic system, containing described hydraulic cylinder structure.
This utility model, by installing high pressure spring, simple in construction in cylinder base, can play the effect of buffering, will not bring big weight load to hydraulic cylinder again, it is provided that the stability of hydraulic cylinder；By being applied in combination U-shaped sealing ring, O RunddichtringO, it is achieved good sealing, keep away the installation of dirt set, can avoid sealing failed problem because of what dust produced along with being moved into of piston rod；By arranging collet, utilize compressed air to take away the heat of cylinder surface, and at piston rod inner, cooling tube is set in order to cool down hydraulic cylinder from cylinder interior further, thus reach the purpose of quick heat radiating, improve the service behaviour of hydraulic cylinder.
Accompanying drawing explanation
The structural representation of a kind of embodiment of Fig. 1 this utility model；1, cylinder body, 2, piston, 3, piston rod, 4, high pressure spring, 5, U-shaped sealing ring, 6, O RunddichtringO, 7, collet, the 8, first air inlet, 9, gas outlet, 10, cooling tube, 11, inner chamber, 12, return flow line, 13, cooling liquid outlet, 14, dirt set is kept away, the 15, second air inlet, 16, emptying one-way valve.
Detailed description of the invention
As shown in Figure 1, a kind of hydraulic cylinder structure, including cylinder body 1, piston 2, piston rod 3, high pressure spring 4, U-shaped sealing ring 5, O RunddichtringO 6, collet the 7, first air inlet 8, gas outlet 9, cooling tube 10, inner chamber 11, return flow line 12, cooling liquid outlet 13, keeps away dirt set the 14, second air inlet 15, emptying one-way valve 16.
Cylinder base is mounted with high pressure spring 4 by axle check ring, when piston 2 moves to the position close to cylinder base, touches high pressure spring 4, movement velocity slows down, so can play the effect of buffering, big weight load will not be brought to hydraulic cylinder again, and easy for installation.
By being applied in combination U-shaped sealing ring 5, O RunddichtringO 6, during hydraulic cylinder, U-shaped sealing ring 5 pressure experienced passes to O RunddichtringO 6 further, and maximum pressure point is transformed into sealing ring edge by O RunddichtringO 6, it is achieved good sealing.Leading to gases at high pressure from the second air inlet 15 in keeping away dirt set 14, then discharge from emptying one-way valve 16, this barotropic state can avoid dust to enter in cylinder body 1 inner chamber, improves the sealing property of hydraulic cylinder further.
By arranging collet 7, in the cavity between collet and cylinder body, constantly it is passed through the compressed air of flowing, quickly takes away the heat that piston movement process produces, reach the purpose dispelled the heat in time, improve the performance of hydraulic cylinder.
Coolant enters and is arranged on the cooling tube 10 of piston rod inner, and travels further into the inner chamber 11 of piston rod, leaves piston rod by return flow line 12, cooling liquid outlet 13 and takes away heat, reduces the temperature of hydraulic cylinder, the especially temperature of sealing ring periphery.
Although this utility model is open as above with preferred embodiment; but it is not limited to this utility model; any person skilled in the art; without departing from spirit and scope of the present utility model; all can do various changes and modification, protection domain the most of the present utility model should be with being as the criterion that claims are defined.
Claims (3)
1. a hydraulic cylinder structure, it is characterised in that include cylinder body, piston, piston rod, high pressure spring, U-shaped sealing ring, O RunddichtringO, collet, cooling tube, cooling liquid outlet, keep away dirt set；The periphery of described piston is provided with sealing ring mounting groove, and U-shaped sealing ring is arranged in sealing ring mounting groove, and O RunddichtringO is arranged between inboard wall of cylinder block and U-shaped sealing ring；Described high pressure spring is arranged on cylinder base；Described collet is located at cylinder body periphery, has cavity, described cavity to be provided with compressed-air actuated import and export between collet and cylinder body；Described piston rod has inner chamber, and the end of piston rod is fixing connects cooling tube, and cooling tube is inserted into piston rod cavity and inner space, the formation coolant return flow line, space between outer wall and the inwall of piston rod of cooling tube；Described one end keeping away dirt set is fixed on cylinder body, and the other end is fixing on the piston rod.
A kind of hydraulic cylinder structure the most according to claim 1, it is characterised in that described high pressure spring is arranged on cylinder base by axle check ring.
A kind of hydraulic cylinder structure the most according to claim 1, it is characterised in that described collet uses heat-barrier material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246076.7U CN205446255U (en) | 2016-03-28 | 2016-03-28 | Hydraulic cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246076.7U CN205446255U (en) | 2016-03-28 | 2016-03-28 | Hydraulic cylinder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446255U true CN205446255U (en) | 2016-08-10 |
Family
ID=56608086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620246076.7U Expired - Fee Related CN205446255U (en) | 2016-03-28 | 2016-03-28 | Hydraulic cylinder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446255U (en) |
-
2016
- 2016-03-28 CN CN201620246076.7U patent/CN205446255U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20190328 |