CN107575433A - Anti-tamper hydraulic cylinder - Google Patents
Anti-tamper hydraulic cylinder Download PDFInfo
- Publication number
- CN107575433A CN107575433A CN201710918967.1A CN201710918967A CN107575433A CN 107575433 A CN107575433 A CN 107575433A CN 201710918967 A CN201710918967 A CN 201710918967A CN 107575433 A CN107575433 A CN 107575433A
- Authority
- CN
- China
- Prior art keywords
- piston
- tracheae
- hydraulic cylinder
- fluid port
- plunger shaft
- 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.)
- Granted
Links
Landscapes
- Actuator (AREA)
Abstract
The invention belongs to field of hydraulic equipment, and in particular to a kind of anti-tamper hydraulic cylinder；Body including hydraulic cylinder, plunger shaft is provided with body, the spring of buffering is provided with plunger shaft；Plunger shaft slidably connects piston, and the both sides of piston are respectively connected with piston rod, is provided with sealing ring at the gap that body is connected with piston rod, and the junction of piston and body is provided with sealing ring.Body is provided with the first hydraulic fluid port and the second hydraulic fluid port for being used for being passed through working oil, first hydraulic fluid port is located at the left side of piston, second hydraulic fluid port is located at the right side of piston, u shape pipes are offered on piston rod, body is provided with the first tracheae being in communication with the outside, and the second tracheae in plunger shaft is passed through, the entrance point of the first tracheae is connected with the high-pressure pump in the external world, and piston movement to u shapes pipe during maximum travel position connects the first tracheae and the second tracheae；The present invention can mitigate impact of the piston to hydraulic cylinder, prevent hydraulic cylinder from occurring leaking or damaging.
Description
Technical field
The invention belongs to field of hydraulic equipment, and in particular to a kind of anti-tamper hydraulic cylinder.
Background technology
In machinery industry, hydraulic cylinder is the important component into the transmission of action edge, and residing working environment is severe, especially
In metallurgical, mining and shipping industry, the running requirements to machinery equipment is higher, and in the transmission process of machinery, hydraulic cylinder is in
In high pressure, impact, unstable harsh environments, in industrial control process, hydraulic cylinder is largely used.Liquid
Cylinder pressure is that hydraulic energy is changed into mechanical energy by one kind, machinery is realized linear reciprocating motion or the device of swing, it is driven work
Steadily, reliability is high.But when hydraulic cylinder load-bearing relatively large load, because thrust is directly proportional to effective work area, its
Cylinder diameter is also just corresponding larger, has larger kinetic energy when hydraulic cylinder to stroke end, does not such as make deceleration processing, hydraulic cylinder
With cylinder cap mechanical collision will occur for piston, produce impact, noise, there is destructiveness.Hydraulic cylinder for a long time piston impact effect
Under, it may appear that damaged situations such as even leaking, influence the stability of hydraulic work system.
The content of the invention
It is an object of the invention to provide a kind of anti-tamper hydraulic cylinder, can mitigate impact of the piston to hydraulic cylinder, prevent
Hydraulic cylinder occurs leaking or damaged.
To reach above-mentioned purpose, base case of the invention is as follows：
Anti-tamper hydraulic cylinder, include the body of hydraulic cylinder, plunger shaft is provided with the body, the plunger shaft slidably connects work
Plug, the both sides of the piston are respectively connected with piston rod, and the body is provided with the first hydraulic fluid port and second for being used for being passed through working oil
Hydraulic fluid port, first hydraulic fluid port and the second hydraulic fluid port are located at the both sides of piston, and the piston rod is provided with u shape pipes, set on the body
There is the first tracheae being in communication with the outside, and the second tracheae being passed through in plunger shaft, entrance point and the external world of first tracheae
High-pressure pump connection, when the piston movement is to maximum travel position the u shapes pipe by the first tracheae and the second tracheae connection.
The principle and beneficial effect of this programme anti-tamper hydraulic cylinder are：
It is provided with plunger shaft in body, the piston that is slidably connected in plunger shaft, body, which is provided with, is used for the first oil for being passed through working oil
Mouth and the second hydraulic fluid port, the first hydraulic fluid port and the second hydraulic fluid port are located at the both sides of piston, are lived respectively according to the demand of work to corresponding
Plug side is passed through the hydraulic oil with pressure, and then can promote piston left lateral or right lateral, and then drives piston rod or so to move
Externally acting is moved, and then hydraulic energy is converted to the mechanical energy of work.When piston left lateral or right lateral reach maximum row soon
When journey, the u shape pipes on piston rod, just the first tracheae on body and the second tracheae are connected, and the first tracheae enters
Kou Chu connects with the air pump of a high pressure, when u shapes pipe connects the first tracheae and the second tracheae, among high-pressure pump
Gases at high pressure can enter in the seal cavity that piston is formed with body in plunger shaft along the second tracheae, and gases at high pressure will be to piston
Inertia play a part of buffering, avoid piston movement to when range hit hydraulic cylinder body, avoid hydraulic cylinder
Appearance is leaked or damaged.Moreover, because on piston rod u shape pipes Position Design so that have in the stroke of whole piston and only
There is a moment, i.e., when the u shapes pipe on piston movement to range, piston rod could be just by the first tracheae and the second tracheae
Connection, remaining at the time of the first tracheae and the second tracheae can be obstructed by piston rod the two path disconnect, the gas of high pressure can not
Into plunger shaft, therefore the work of hydraulic oil in hydraulic cylinder is not interfered with, resistance, and high pressure will not be formed to the running of equipment
Gas will not leak, be also not required to individually set air pump switch, completely according to the working condition of piston oneself using u shapes pipe come
The tracheae of break-make first and the second tracheae, therefore u shape pipes are that pipeline is also switch.
Preferred scheme one：As the further optimization to base case, the junction of piston and body is provided with sealing ring, keeps away
The hydraulic oil for exempting from piston both sides interpenetrates.
Preferred scheme two：It is provided with as the further optimization to base case, at the gap that body is connected with piston rod close
Seal, prevent hydraulic fluid leak.
Preferred scheme three：As the further optimization to base case, the spring provided with buffering is further in plunger shaft
Mitigate impact of the piston to hydraulic cylinder, prevent hydraulic cylinder from occurring leaking or damaging.
Preferred scheme four：As the further optimization to base case, the areas of u shape tube openings is less than the first tracheae and the
The area of two tracheostomies, avoids high pressure gas leakage.
Brief description of the drawings
Fig. 1 is the structural representation of anti-tamper hydraulic cylinder embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Body 1, high-pressure pump 2, the first hydraulic fluid port 3, piston rod 4, sealing ring 5, first
Tracheae 6, the second tracheae 7, u shapes pipe 8, piston 9, sealing ring 10, spring 11, the second hydraulic fluid port 12.
Embodiment is substantially as shown in Figure 1：
The anti-tamper hydraulic cylinder of the present embodiment, include the body 1 of hydraulic cylinder, plunger shaft is provided with body 1, is provided with plunger shaft slow
The spring 11 of punching；Plunger shaft slidably connects piston 9, and the both sides of piston 9 are respectively connected with piston rod 4, body 1 and piston rod 4
Sealing ring 5 is provided with the gap of connection, the junction of piston 9 and body 1 is provided with sealing ring 10.Body 1, which is provided with, to be used to be passed through
The first hydraulic fluid port 3 and the second hydraulic fluid port 12 of working oil, the first hydraulic fluid port 3 are located at the left side of piston 9, and the second hydraulic fluid port 12 is located at piston 9
Right side, u shape pipes are offered on piston rod 4, body 1 is provided with the first tracheae 6 being in communication with the outside, and is passed through in plunger shaft
Second tracheae 7, the entrance point of the first tracheae 6 are connected with the high-pressure pump 2 in the external world, u shapes when piston 9 moves to maximum travel position
Pipe 8 connects the first tracheae 6 with the second tracheae 7.
The specific work process of the present embodiment anti-tamper hydraulic cylinder is：
The hydraulic oil of work, the first hydraulic fluid port 3 are each led into the first hydraulic fluid port 3 and the second hydraulic fluid port 12 according to the work requirements of reality
It is located at the both sides of piston 9 with the second hydraulic fluid port 12, is passed through respectively according to the demand of work to the corresponding side of piston 9 with pressure
Hydraulic oil, and then the left lateral of piston 9 or right lateral can be promoted, and then drive piston rod 4 to move left and right external acting, and then will
Hydraulic energy is converted to the mechanical energy of work.When the left lateral of piston 9 or right lateral reach maximum stroke soon, piston rod 4
On u shapes pipe 8, just the first tracheae 6 on body 1 is connected with the second tracheae 7, and the entrance of the first tracheae 6 with one
The air pump connection of high pressure, when u shapes pipe 8 connects the first tracheae 6 with the second tracheae 7, the high pressure gas among high-pressure pump 2
Know from experience along the second tracheae 7 and enter in the seal cavity that piston 9 is formed with body 1 in plunger shaft, gases at high pressure will be to piston 9
Inertia plays a part of buffering, avoids piston 9 from hitting the body 1 of hydraulic cylinder when moving to range, avoids hydraulic cylinder
Appearance is leaked or damaged.Moreover, because on piston rod 4 u shapes pipe 8 Position Design so that have in the stroke of whole piston 9 and
An only moment, i.e., when piston 9 moves to range, the u shapes pipe 8 on piston rod 4 could be just by the first tracheae 6 and
Two tracheaes 7 connect, remaining at the time of the first tracheae 6 and the second tracheae 7 can by piston rod 4 obstruct the two path disconnect, high pressure
Gas cannot be introduced into plunger shaft, therefore do not interfere with the work of hydraulic oil in hydraulic cylinder, running that will not be to equipment forms resistance
Power, and gases at high pressure will not leak, and also be not required to individually set the switch of air pump, completely according to the work feelings of piston 9 oneself
Condition come break-make the first tracheae 6 and the second tracheae 7, serves the effect of switch using u shapes pipe 8.The junction of piston 9 and body 1
Provided with sealing ring 10, the hydraulic oil of the both sides of piston 9 is avoided to interpenetrate.The spring 11 provided with buffering further subtracts in plunger shaft
The light impact for mitigating piston 9 to hydraulic cylinder, prevents hydraulic cylinder from occurring leaking or damaging.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, and these are implemented all without the influence present invention
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as embodiment can be used for the content for explaining claim.
Claims (5)
- A kind of 1. anti-tamper hydraulic cylinder, it is characterised in that the body including hydraulic cylinder, plunger shaft is provided with the body, it is described Plunger shaft slidably connects piston, and the both sides of the piston are respectively connected with piston rod, and the body, which is provided with, to be used to be passed through work The first hydraulic fluid port and the second hydraulic fluid port of oil, first hydraulic fluid port and the second hydraulic fluid port are located at the both sides of piston, and the piston rod is provided with u Shape pipe, the body are provided with the first tracheae being in communication with the outside, and the second tracheae being passed through in plunger shaft, first gas The entrance point of pipe is connected with the high-pressure pump in the external world, and the u shapes pipe is by the first gas when the piston movement is to maximum travel position Pipe connects with the second tracheae.
- 2. anti-tamper hydraulic cylinder according to claim 1, it is characterised in that the junction of the piston and body is provided with close Seal ring.
- 3. anti-tamper hydraulic cylinder according to claim 1, it is characterised in that at the gap that the body is connected with piston rod Provided with sealing ring.
- 4. anti-tamper hydraulic cylinder according to claim 1, it is characterised in that the bullet of buffering is provided with the plunger shaft Spring.
- 5. anti-tamper hydraulic cylinder according to claim 1, it is characterised in that the area of the u shapes tube opening is less than first The area of tracheae and the second tracheostomy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918967.1A CN107575433B (en) | 2017-09-30 | 2017-09-30 | Anti-tamper hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918967.1A CN107575433B (en) | 2017-09-30 | 2017-09-30 | Anti-tamper hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575433A true CN107575433A (en) | 2018-01-12 |
| CN107575433B CN107575433B (en) | 2019-02-22 |
Family
ID=61039109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710918967.1A Active CN107575433B (en) | 2017-09-30 | 2017-09-30 | Anti-tamper hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107575433B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083185A (en) * | 1992-08-28 | 1994-03-02 | 林荣敏 | Closed hydraulic cylinder with damped stretching action |
| US6073441A (en) * | 1996-03-06 | 2000-06-13 | Pos-Line Ab | Single acting pneumatic piston-cylinder unit |
| JP2005163917A (en) * | 2003-12-03 | 2005-06-23 | Toyota Industries Corp | Hydraulic cylinder in industrial vehicle |
| CN201090555Y (en) * | 2007-07-12 | 2008-07-23 | 兖州山拖液压有限公司 | Double-acting unloading buffer oil cylinder |
| CN201982410U (en) * | 2010-12-13 | 2011-09-21 | 杭州叉车门架有限公司 | Single acting piston-cylinder with upper buffer function |
| JP2017067188A (en) * | 2015-09-30 | 2017-04-06 | 住友精密工業株式会社 | Hydraulic cylinder for landing gear of aircraft |
-
2017
- 2017-09-30 CN CN201710918967.1A patent/CN107575433B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083185A (en) * | 1992-08-28 | 1994-03-02 | 林荣敏 | Closed hydraulic cylinder with damped stretching action |
| US6073441A (en) * | 1996-03-06 | 2000-06-13 | Pos-Line Ab | Single acting pneumatic piston-cylinder unit |
| JP2005163917A (en) * | 2003-12-03 | 2005-06-23 | Toyota Industries Corp | Hydraulic cylinder in industrial vehicle |
| CN201090555Y (en) * | 2007-07-12 | 2008-07-23 | 兖州山拖液压有限公司 | Double-acting unloading buffer oil cylinder |
| CN201982410U (en) * | 2010-12-13 | 2011-09-21 | 杭州叉车门架有限公司 | Single acting piston-cylinder with upper buffer function |
| JP2017067188A (en) * | 2015-09-30 | 2017-04-06 | 住友精密工業株式会社 | Hydraulic cylinder for landing gear of aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107575433B (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201636117U (en) | Adjustable gap-buffer hydraulic cylinder | |
| CN201636116U (en) | Gap cushioning hydraulic cylinder | |
| CN103775431A (en) | Hydraulic cylinder capable of being locked at any position by using elastic sleeve | |
| CN201836150U (en) | Multi-stage cylinder-type electric hydraulic push rod | |
| CN102042280A (en) | Piston cylinder | |
| CN103256275A (en) | Quick double-acting hydraulic cylinder | |
| CN101629590A (en) | Three-section piston short stroke hydraulic cylinder | |
| CN107575433A (en) | Anti-tamper hydraulic cylinder | |
| CN102434525B (en) | Pumping mechanism | |
| CN103671344A (en) | Pumping oil cylinder and pumping equipment provided with pumping oil cylinder | |
| CN102996570B (en) | Single-action double-graded hydraulic cylinder and engineering machine | |
| CN107882806A (en) | The method of work of anti-tamper hydraulic cylinder | |
| CN207122531U (en) | Novel oil gas suspension cylinder | |
| CN105299126A (en) | Two-stage buffer with temperature detection device | |
| CN105545873A (en) | Internal differential cylinder structure and injection method thereof | |
| CN214661199U (en) | Hydraulic cylinder | |
| CN104074836A (en) | High speed hydraulic cylinder buffer mechanism | |
| CN201344261Y (en) | Labyrinth sealing structure with auricle-shaped groove | |
| CN205078545U (en) | Bounce cylinder | |
| CN204344923U (en) | For the seal arrangement of flexible part of heading machine | |
| CN204344567U (en) | A kind of without sealing servo-cylinder | |
| CN207406573U (en) | A kind of hydraulic cylinder | |
| CN104019077A (en) | Oil cylinder with front lug and rear lug | |
| CN203809408U (en) | Oil cylinder with front lug ring and rear lug ring | |
| CN204493340U (en) | A kind of novel linear reciprocating motion type oil hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |