CN107575433B - Anti-tamper hydraulic cylinder - Google Patents
Anti-tamper hydraulic cylinder Download PDFInfo
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- CN107575433B CN107575433B CN201710918967.1A CN201710918967A CN107575433B CN 107575433 B CN107575433 B CN 107575433B CN 201710918967 A CN201710918967 A CN 201710918967A CN 107575433 B CN107575433 B CN 107575433B
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Abstract
Present patent application belongs to field of hydraulic equipment, and in particular to a kind of anti-tamper hydraulic cylinder；Ontology including hydraulic cylinder is provided with plunger shaft in ontology, the spring of buffering is equipped in plunger shaft；Plunger shaft slidably connects piston, and the two sides of piston are respectively connected with piston rod, is equipped with sealing ring at the gap that ontology is connect with piston rod, and the junction of piston and ontology is equipped with sealing ring.Ontology is equipped with the first hydraulic fluid port and the second hydraulic fluid port 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 pipe is offered on piston rod, ontology is equipped with the first tracheae being in communication with the outside, and it is passed through the second tracheae in plunger shaft, the input end of the first tracheae connect with extraneous high-pressure pump, and u shape pipe is by the first tracheae and the connection of the second tracheae when piston motion is to maximum travel position；Present patent application can mitigate impact of the piston to hydraulic cylinder, prevent hydraulic cylinder from occurring leaking or damage.
Description
Technical field
The invention belongs to field of hydraulic equipment, and in particular to a kind of anti-tamper hydraulic cylinder.
Background technique
In machinery industry, hydraulic cylinder is the important component for carrying out the transmitting of power, and locating working environment is severe, especially
In metallurgy, mining and shipping industry, higher to the running requirements of machinery equipment, in mechanical transmission process, hydraulic cylinder is in
High pressure, impact in unstable harsh environments, in industrial control process, largely use hydraulic cylinder.Liquid
Cylinder pressure be it is a kind of hydraulic energy is changed into mechanical energy, make the mechanical device for realizing linear reciprocating motion or swing, be driven work
Steadily, high reliablity.But when hydraulic cylinder load-bearing relatively large load, since thrust is directly proportional to effective work area,
Cylinder diameter is also just corresponding larger, has larger kinetic energy when hydraulic cylinder to stroke end, does not make deceleration processing, hydraulic cylinder such as
Mechanical collision will occur for piston and cylinder cap, generate impact, noise, there is destructiveness.Hydraulic cylinder is for a long time in the effect of the impact of piston
Under, it may appear that damaged situations such as even leaking, influence the stability of hydraulic system work.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-tamper hydraulic cylinders, can mitigate impact of the piston to hydraulic cylinder, prevent
Hydraulic cylinder occurs leaking or damage.
In order to achieve the above objectives, base case of the invention is as follows:
Anti-tamper hydraulic cylinder, the ontology including hydraulic cylinder are provided with plunger shaft in the ontology, and the plunger shaft is slidably connected
Have a piston, the two sides of the piston are respectively connected with piston rod, the ontology be equipped with the first hydraulic fluid port for being passed through working oil and
Second hydraulic fluid port, first hydraulic fluid port and the second hydraulic fluid port are located at the two sides of piston, and the piston rod is equipped with u shape pipe, the ontology
Be equipped with the first tracheae for being in communication with the outside, and the second tracheae being passed through in plunger shaft, the input end of first tracheae with
Extraneous high-pressure pump connection, the u shape pipe is by the first tracheae and the second tracheae when the piston motion is to maximum travel position
Connection.
The principle and beneficial effect of this programme anti-tamper hydraulic cylinder are:
Plunger shaft is provided in ontology, the piston that is slidably connected in plunger shaft, ontology is equipped with for being passed through working oil
One hydraulic fluid port and the second hydraulic fluid port, the first hydraulic fluid port and the second hydraulic fluid port are located at the two sides of piston, respectively according to the demand of work come to corresponding
Piston side be passed through the hydraulic oil with pressure, and then piston left lateral or right lateral can be pushed, and then drive piston rod left
External acting is moved right, and then hydraulic energy is converted to the mechanical energy of work.When piston left lateral or right lateral reach maximum fastly
Stroke when, the u shape pipe on piston rod, just by ontology the first tracheae and the second tracheae be connected to, and the first tracheae
Entrance be connected to the air pump of a high pressure, when the first tracheae and the second tracheae are connected to by u shape pipe, high-pressure pump it
In high pressure gas can enter along the second tracheae in the seal cavity that piston and ontology are formed in plunger shaft, high pressure gas will be right
The inertia of piston plays the role of buffering, and the ontology of hydraulic cylinder is hit when avoiding piston motion to range, avoids liquid
Cylinder pressure occurs leaking or damage.Moreover, because of the Position Design of u shape pipe on piston rod, so that having in the stroke of entire piston
And only one moment, i.e., when the u shape pipe on piston motion to range, piston rod could be just by the first tracheae and second
Tracheae connection, remaining at the time of the first tracheae and the second tracheae can by piston rod obstruct both access disconnect, the gas of high pressure
It cannot be introduced into plunger shaft, therefore will not influence the work of hydraulic oil in hydraulic cylinder, resistance will not be formed to the running of equipment, and
High pressure gas will not leak, and be also not required to that the switch of air pump is individually arranged, utilize u shape according to the working condition of piston oneself completely
Pipe comes the first tracheae of on-off and the second tracheae, therefore it is also switch that u shape pipe, which is pipeline,.
Preferred embodiment one: advanced optimizing as to base case, and the junction of piston and ontology is equipped with sealing ring, keeps away
The hydraulic oil for exempting from piston two sides interpenetrates.
Preferred embodiment two: advanced optimizing as to base case, is equipped at the gap that ontology is connect with piston rod close
Seal prevents hydraulic fluid leak.
Preferred embodiment three: advanced optimizing as to base case, and the spring in plunger shaft equipped with buffering is further
Mitigate impact of the piston to hydraulic cylinder, prevents hydraulic cylinder from occurring leaking or damage.
Preferred embodiment four: advanced optimizing as to base case, and the area of u shape tube opening is less than the first tracheae and
The area of two tracheostomies, avoids high pressure gas leakage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of anti-tamper hydraulic cylinder embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Appended drawing reference in Figure of description include: ontology 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 shape 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, the ontology 1 including hydraulic cylinder are provided with plunger shaft in ontology 1, set in plunger shaft
There is the spring 11 of buffering；Plunger shaft slidably connects piston 9, and the two sides of piston 9 are respectively connected with piston rod 4, ontology 1 and piston
Sealing ring 5 is equipped at the gap that bar 4 connects, piston 9 and the junction of ontology 1 are equipped with sealing ring 10.Ontology 1 is equipped with for leading to
Enter the first hydraulic fluid port 3 and the second hydraulic fluid port 12 of working oil, the first hydraulic fluid port 3 is located at the left side of piston 9, and the second hydraulic fluid port 12 is located at piston 9
Right side, u shape pipe is offered on piston rod 4, ontology 1 is equipped with the first tracheae 6 being in communication with the outside, and is passed through in plunger shaft
The second tracheae 7, the input end of the first tracheae 6 connect with extraneous high-pressure pump 2, u when piston 9 moves to maximum travel position
First tracheae 6 is connected to by shape pipe 8 with the second tracheae 7.
The specific work process of the present embodiment anti-tamper hydraulic cylinder are as follows:
Each lead into the hydraulic oil of work to the first hydraulic fluid port 3 and the second hydraulic fluid port 12 according to actual work requirements, first
Hydraulic fluid port 3 and the second hydraulic fluid port 12 are located at the two sides of piston 9, are passed through band to corresponding 9 side of piston according to the demand of work respectively
There is the hydraulic oil of pressure, and then 9 left lateral of piston or right lateral can be pushed, and then piston rod 4 is driven to move left and right external acting,
And then hydraulic energy is converted to the mechanical energy of work.It is living when 9 left lateral of piston or right lateral reach maximum stroke fastly
The first tracheae 6 on ontology 1 is just connected to by the u shape pipe 8 on stopper rod 4 with the second tracheae 7, and the entrance of the first tracheae 6 with
The air pump connection of one high pressure, height when the first tracheae 6 is connected to by u shape pipe 8 with the second tracheae 7, among high-pressure pump 2
It calms the anger and knows from experience along the seal cavity that the second tracheae 7 enters that piston 9 and ontology 1 are formed in plunger shaft, high pressure gas will be to work
The inertia of plug 9 plays the role of buffering, and the ontology 1 of hydraulic cylinder is hit when avoiding piston 9 from moving to range, avoids liquid
Cylinder pressure occurs leaking or damage.Moreover, because of the Position Design of u shape pipe 8 on piston rod 4, so that in the stroke of entire piston 9
Have and only one moment, i.e., when piston 9 moves to range, the u shape pipe 8 on piston rod 4 could be just by the first tracheae 6
Be connected to the second tracheae 7, remaining at the time of the first tracheae 6 and the second tracheae 7 can by piston rod 4 barrier both access disconnect,
The gas of high pressure cannot be introduced into plunger shaft, therefore will not influence the work of hydraulic oil in hydraulic cylinder, will not running shape to equipment
At resistance, and high pressure gas will not leak, and also be not required to that the switch of air pump is individually arranged, completely according to the work of piston 9 oneself
Make situation using u shape pipe 8 come on-off the first tracheae 6 and the second tracheae 7, plays the role of switch.The company of piston 9 and ontology 1
It meets place and is equipped with sealing ring 10, the hydraulic oil of 9 two sides of piston is avoided to interpenetrate.The spring 11 into one of buffering is equipped in plunger shaft
Step mitigates impact of the piston 9 to hydraulic cylinder, prevents hydraulic cylinder from occurring leaking or damage.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, 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 also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (5)
1. a kind of anti-tamper hydraulic cylinder, the ontology including hydraulic cylinder is provided with plunger shaft in the ontology, and the plunger shaft sliding connects
It is connected to piston, the two sides of the piston are respectively connected with piston rod, and the ontology is equipped with the first hydraulic fluid port for being passed through working oil
With the second hydraulic fluid port, first hydraulic fluid port and the second hydraulic fluid port are located at the two sides of piston, which is characterized in that the piston rod is equipped with u
Type pipe, the ontology are equipped with the first tracheae being in communication with the outside, and the second tracheae being passed through in plunger shaft, first gas
The input end of pipe is connect with extraneous high-pressure pump, and the u shape pipe is by the first gas when the piston motion is to maximum travel position
Pipe is connected to the second tracheae.
2. anti-tamper hydraulic cylinder according to claim 1, which is characterized in that the junction of the piston and ontology is equipped with close
Seal ring.
3. anti-tamper hydraulic cylinder according to claim 1, which is characterized in that at the gap that the ontology is connect with piston rod
Equipped with sealing ring.
4. anti-tamper hydraulic cylinder according to claim 1, which is characterized in that be equipped with the bullet of buffering in the plunger shaft
Spring.
5. anti-tamper hydraulic cylinder according to claim 1, which is characterized in that the area of the u shape 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 CN107575433A (en) | 2018-01-12 |
| CN107575433B true CN107575433B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710918967.1A Active CN107575433B (en) | 2017-09-30 | 2017-09-30 | Anti-tamper hydraulic cylinder |
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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 |
|---|---|
| CN107575433A (en) | 2018-01-12 |
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