CN206129775U - Cushion hollow pneumatic cylinder - Google Patents
Cushion hollow pneumatic cylinder Download PDFInfo
- Publication number
- CN206129775U CN206129775U CN201621057313.1U CN201621057313U CN206129775U CN 206129775 U CN206129775 U CN 206129775U CN 201621057313 U CN201621057313 U CN 201621057313U CN 206129775 U CN206129775 U CN 206129775U
- Authority
- CN
- China
- Prior art keywords
- fluid port
- hydraulic fluid
- high pressure
- pressure spring
- hydraulic
- 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
Abstract
The utility model discloses a cushion hollow pneumatic cylinder belongs to hydraulic equipment technical field. It includes piston rod, piston, cylinder body, high pressure spring, hollow oil pipe, cavity, first hydraulic fluid port, second hydraulic fluid port, high pressure spring is installed to the bottom of cylinder body, and high pressure spring installs in the cylinder body bottom through check ring for the axle, and oil pipe is for advancing, produce oil oil pipe, and first hydraulic fluid port and second hydraulic fluid port are for advancing, produce oil the hydraulic fluid port. The utility model provides a biological cushion hollow pneumatic cylinder simple structure, self weight is little, system's inertia is little, dynamic response is better, through at cylinder body bottom installation high pressure spring, can play the effect of buffering, can not bring big weight burden for the pneumatic cylinder yet.
Description
Technical field
This utility model is related to a kind of hollow hydraulic cylinder of buffering, belongs to technical field of hydraulic equipment.
Background technology
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy to realize straight reciprocating motion, is important in hydraulic system to perform unit
One of part, is widely used to each engineering field.Normal hydraulic cylinder mostly is solid cylinder, and own wt is big, and system inertia is big, dynamic
Difference in response, it is inconvenient in some specific applications；And hollow hydraulic cylinder own wt is little, inertia is little, dynamic response is preferable,
With good application prospect.In addition, during hydraulic cylinder works, if piston is directly bumped against with the end cap of hydraulic cylinder, can produce larger
Shock loading, hydraulic system is had a negative impact, end cap can be also damaged.Hydraulic damping device can reach stroke in piston
Decelerate to zero protection end cap during terminal, current buffer unit be in the certain distance before piston reaches terminal try by
The part fluid of oil extraction intracavity is closed, and is discharged by throttling pore, so as to produce appropriate compensator or trimmer pressure, reaches deceleration
Effect, but increase the weight of hydraulic cylinder when cushion stroke is larger, this buffer unit increased extra energy consumption.
Utility model content
This utility model provides a kind of buffering hollow hydraulic cylinder, solves Normal hydraulic cylinder own wt in prior art
Greatly, system inertia is big, the problem of dynamic response difference；If solving in prior art plain hollow hydraulic cylinder piston directly and hydraulic pressure
The end cap of cylinder bumps against, and can produce larger shock loading, the problem of end cap is had a negative impact and can damaged to hydraulic system.
The technical solution adopted in the utility model is：
A kind of hollow hydraulic cylinder of buffering, including piston rod 1, piston 2, cylinder body 3, high pressure spring 4, hollow oil pipe 5, cavity 6,
Hydraulic fluid port A and B；The bottom of the cylinder body 3 is provided with high pressure spring 4；The hollow oil pipe 5 is into and out of oil pipe；The cavity 6
It is divided into bottom cavity 6.1 and cylinder body side cavity 6.2；The first hydraulic fluid port A and the second hydraulic fluid port B are into fuel-displaced hydraulic fluid port；
The high pressure spring is arranged on cylinder base with check ring by axle.
This utility model beneficial effect：
This utility model provide the hollow hydraulic cylinder own wt of buffering it is little, system inertia is little, dynamic response is preferable；This reality
It is simple with new structure, by high pressure spring being installed in cylinder base, can play a part of buffering, also will not bring to hydraulic cylinder
Big weight load.
Description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present utility model.
1st, piston rod；2nd, piston；3rd, cylinder body；4th, high pressure spring；5th, hollow oil pipe；6th, cavity (includes 6.1 cavitys and 6.2
Cavity)；A, the first hydraulic fluid port；B, the second hydraulic fluid port；
Specific embodiment
It is a kind of as shown in Figure 1 to buffer hollow hydraulic cylinder, including piston rod 1, piston 2, cylinder body 3, high pressure spring 4, hollow oil
Pipe 5, cavity 6, the first hydraulic fluid port A and the second hydraulic fluid port B.
When the first hydraulic fluid port A oil-feeds, hydraulic oil is entered in hollow oil pipe 5 by the first hydraulic fluid port A, then is led to by hollow oil pipe 5
Enter in cavity 6.1；Hydraulic oil promotes piston 2 so as to drive piston rod 1 to move together, while the hydraulic oil in cavity 6.2 passes through
Second hydraulic fluid port B flows out, so that piston rod 1 is stretched out from cylinder body 3；When the second hydraulic fluid port B oil-feeds, hydraulic oil passes through the second hydraulic fluid port
B is flowed in cavity 6.2, and hydraulic oil promotes piston 2 and drives piston rod 1 to move together, and now the hydraulic oil in cavity 6.1 passes through
Hollow oil pipe 5 in piston rod is flowed out from the first hydraulic fluid port A, so that in 1 retract cylinder 3 of piston rod；Cylinder base is used by axle
Check ring is mounted with high pressure spring 4, when piston 2 moves to the position for being close to cylinder base, touches high pressure spring 4, fortune
Dynamic speed slows down, and plays cushioning effect.
Although this utility model is disclosed as above with preferred embodiment, which is not limited to this utility model, any
Person skilled in the art, in without departing from spirit and scope of the present utility model, can do various changes and modification, therefore this
The protection domain of utility model should be by being defined that claims are defined.
Claims (2)
- It is 1. a kind of to buffer hollow hydraulic cylinder, it is characterised in that：Including piston rod (1), piston (2), cylinder body (3), high pressure spring (4), hollow oil pipe (5), cavity (6), the first hydraulic fluid port (A) and the second hydraulic fluid port (B)；The bottom of the cylinder body (3) is provided with high pressure Spring (4)；The oil pipe (5) is into and out of oil pipe；The cavity (6) is divided into bottom cavity (6.1) and cylinder body side cavity (6.2)；First hydraulic fluid port (A) and the second hydraulic fluid port (B) are into fuel-displaced hydraulic fluid port.
- 2. one kind according to claim 1 buffers hollow hydraulic cylinder, it is characterised in that the high pressure spring is by axle bullet Spring back-up ring is arranged on cylinder base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057313.1U CN206129775U (en) | 2016-09-14 | 2016-09-14 | Cushion hollow pneumatic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057313.1U CN206129775U (en) | 2016-09-14 | 2016-09-14 | Cushion hollow pneumatic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129775U true CN206129775U (en) | 2017-04-26 |
Family
ID=58570076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621057313.1U Expired - Fee Related CN206129775U (en) | 2016-09-14 | 2016-09-14 | Cushion hollow pneumatic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129775U (en) |
-
2016
- 2016-09-14 CN CN201621057313.1U patent/CN206129775U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20210914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |