CN107882806B - The working method of anti-tamper hydraulic cylinder - Google Patents
The working method of anti-tamper hydraulic cylinder Download PDFInfo
- Publication number
- CN107882806B CN107882806B CN201710937544.4A CN201710937544A CN107882806B CN 107882806 B CN107882806 B CN 107882806B CN 201710937544 A CN201710937544 A CN 201710937544A CN 107882806 B CN107882806 B CN 107882806B
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- Prior art keywords
- piston
- tracheae
- hydraulic cylinder
- ontology
- piston rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
Present patent application belongs to field of hydraulic equipment, and in particular to a kind of working method 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-shaped 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 starting a leak or damaging.
Description
Technical field
The invention belongs to field of hydraulic equipment, and in particular to a kind of working method 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 working methods of anti-tamper hydraulic cylinder, can mitigate piston to hydraulic cylinder
Impact, prevents hydraulic cylinder from starting a leak or damaging.
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, which further includes following working method:
(1) before use, first detecting the unobstructed situation of gas circuit of whole equipment, piston rod is pushed to u shape pipe for the first tracheae
It is connected to the second tracheae, opens high-pressure pump, shifting can or can not be generated under gas pressure by observing the piston in the ontology of hydraulic cylinder
It is dynamic, if piston will not move, show that gas circuit is obstructed, or sealing not enough leads to high pressure gas or hydraulic fluid leak, at this time
It needs again comprehensively to overhaul hydraulic cylinder；
(2) in use, needing to overhaul hydraulic cylinder every two weeks, mainly to hydraulic cylinder and piston and piston
Gap between bar measures, and discovery gap needs replacing corresponding piston or piston rod when being greater than maximum allowance；
(3) it after use, needs for piston rod to be pushed to u shape pipe and is connected to the first tracheae and the second tracheae, open high pressure gas
Pump, continues to ventilate to gas circuit, avoids hydraulic oil from entering gas circuit and result in blockage.
The principle and beneficial effect of the working method of this programme anti-tamper hydraulic cylinder are:
Plunger shaft is provided in ontology, being slidably connected in plunger shaft connects piston, and ontology upper body is equipped with for being passed through
The first hydraulic fluid port and the second hydraulic fluid port of working oil, the first hydraulic fluid port and the second hydraulic fluid port are located at the two sides of piston, the need more to work respectively
It asks to be passed through the hydraulic oil with pressure to corresponding piston side, and then piston left lateral or right lateral can be pushed, and then band
Piston bar moves left and right external acting, and then hydraulic energy dress has been changed into the mechanical energy of work.When piston left lateral or right lateral
When reaching maximum stroke fastly, u shape pipe on piston rod, just by ontology the first tracheae and the second tracheae connect
It is logical, and the entrance of the first tracheae is connected to the air pump of a high pressure, when the first tracheae and the second tracheae are connected to by u shape pipe
It waits, the high pressure gas among high-pressure pump can enter along the second tracheae in the seal cavity that piston and ontology are formed in plunger shaft,
High pressure gas will play the role of buffering to the inertia of piston, hit hydraulic cylinder when avoiding piston motion to range
Ontology, avoid hydraulic cylinder from starting a leak or damage.Moreover, because of the Position Design of u shape pipe on piston rod, so that entire living
Have in the stroke of plug and only one moment, i.e., when the u shape pipe on piston motion to range, piston rod could be just by
One tracheae and the second tracheae connection, remaining at the time of the first tracheae and the second tracheae can by piston rod obstruct both access break
It opens, 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 be to the running of equipment
Resistance is formed, and high pressure gas will not leak, and also be not required to that the switch of air pump is individually arranged, completely the more work of piston oneself
Make situation using u shape pipe come 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 starting a leak or damaging.
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 the embodiment of anti-tamper hydraulic cylinder 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 9 chamber of piston in ontology 1, in 9 chamber of piston
Spring 11 equipped with buffering；9 chamber of piston slidably connects piston 9, and the two sides of piston 9 are respectively connected with 9 bar 4 of piston, ontology 1 with
Sealing ring 5 is equipped at the gap of 9 bar 4 of piston connection, piston 9 and the junction of ontology 1 are equipped with sealing ring 10.Ontology 1 is equipped with
For being passed through 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
The right side of piston 9 offers u shape pipe on 9 bar 4 of piston, and ontology 1 is equipped with the first tracheae 6 being in communication with the outside, and is passed through work
The second tracheae 7 in 9 chambers is filled in, the input end of the first tracheae 6 is connect with extraneous high-pressure pump 2, and piston 9 moves to range
The first tracheae 6 is connected to by u shape pipe 8 with the second tracheae 7 when position.
The specific work process of the working method of the present embodiment anti-tamper hydraulic cylinder are as follows:
(1) before use, first detecting the unobstructed situation of gas circuit of whole equipment, piston rod is pushed to u shape pipe for the first tracheae
It is connected to the second tracheae, opens high-pressure pump, shifting can or can not be generated under gas pressure by observing the piston in the ontology of hydraulic cylinder
It is dynamic, if piston will not move, show that gas circuit is obstructed, or sealing not enough leads to high pressure gas or hydraulic fluid leak, at this time
It needs again comprehensively to overhaul hydraulic cylinder；
(2) in use, each leading into hydraulic oil, Jin Erneng according to actual work requirements in the first hydraulic fluid port and the second hydraulic fluid port
Piston left lateral or right lateral are enough pushed, and then drives piston rod to move left and right external acting, and then changed hydraulic energy dress into work
The mechanical energy of work.When piston left lateral or right lateral reach maximum stroke fastly, u shape pipe on piston rod just will
The first tracheae and the connection of the second tracheae on ontology, and the entrance of the first tracheae is connected to the air pump of a high pressure, when u shape pipe
When first tracheae and the second tracheae are connected to, the high pressure gas among high-pressure pump can enter in plunger shaft along the second tracheae
In the seal cavity that piston and ontology are formed, high pressure gas will play the role of buffering to the inertia of piston, and piston is avoided to transport
The ontology that hydraulic cylinder is hit when moving range, avoids hydraulic cylinder from starting a leak or damage.Moreover, because piston rod
The Position Design of upper u shape pipe, so that having in the stroke of entire piston and only one moment, i.e., when piston motion to maximum row
First tracheae and the second tracheae could be just connected to by journey, the u shape pipe on piston rod, remaining at the time of the first tracheae and the second gas
The access that pipe can be obstructed the two by piston rod disconnects, and the gas of high pressure cannot be introduced into plunger shaft, therefore will not influence in hydraulic cylinder
The work of hydraulic oil will not form resistance to the running of equipment, and high pressure gas will not leak, and also be not required to that gas individually is arranged
The switch of pump, completely more the working condition of piston oneself using u shape pipe come the first tracheae of on-off and the second tracheae, therefore u shape
Pipe is that pipeline is also switch, needs to overhaul hydraulic cylinder every two weeks, mainly to hydraulic cylinder and piston and work
Gap between stopper rod measures, and discovery gap needs replacing corresponding piston or piston when being greater than maximum allowance
Bar；
(3) it after use, needs for piston rod to be pushed to u shape pipe and is connected to the first tracheae and the second tracheae, open high pressure gas
Pump, continues to ventilate to gas circuit, avoids hydraulic oil from entering gas circuit and result in blockage.
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 working method of anti-tamper hydraulic cylinder, the anti-tamper hydraulic cylinder includes the ontology of hydraulic cylinder, in the ontology
It is provided with plunger shaft, the plunger shaft slidably connects piston, and the two sides of the piston are respectively connected with piston rod, set on the ontology
There are the first hydraulic fluid port and the second hydraulic fluid port for being passed through working oil, first hydraulic fluid port and the second hydraulic fluid port are located at the two sides of piston, institute
Piston rod is stated equipped with u shape pipe, the ontology is equipped with the first tracheae being in communication with the outside, and second be passed through in plunger shaft
Tracheae, the input end of first tracheae are connect with extraneous high-pressure pump, the piston motion to maximum travel position when institute
It states u shape pipe to be connected to the first tracheae and the second tracheae, which is characterized in that the specific work of the working method of the anti-tamper hydraulic cylinder
Make process are as follows:
(1) before use, first detecting the unobstructed situation of gas circuit of whole equipment, piston rod is pushed to u shape pipe for the first tracheae and the
The connection of two tracheaes, opens high-pressure pump, and movement can or can not be generated under gas pressure by observing the piston in the ontology of hydraulic cylinder, if
Piston will not move, then show that gas circuit is obstructed, or sealing not enough leads to high pressure gas or hydraulic fluid leak, needs weight at this time
Newly hydraulic cylinder is comprehensively overhauled；
(2) in use, needing to overhaul hydraulic cylinder every two weeks, between hydraulic cylinder and piston and piston rod
Gap measures, and discovery gap needs replacing corresponding piston or piston rod when being greater than maximum allowance；
(3) it after use, needs for piston rod to be pushed to u shape pipe and is connected to the first tracheae and the second tracheae, open high-pressure pump, after
It is continuous to ventilate to gas circuit, it avoids hydraulic oil from entering gas circuit and results in blockage.
2. the working method of anti-tamper hydraulic cylinder according to claim 1, which is characterized in that the company of the piston and ontology
It meets place and is equipped with sealing ring.
3. the working method of anti-tamper hydraulic cylinder according to claim 1, which is characterized in that the ontology and piston rod connect
Sealing ring is equipped at the gap connect.
4. the working method of anti-tamper hydraulic cylinder according to claim 1, which is characterized in that be equipped in the plunger shaft slow
The spring of punching.
5. the working method of anti-tamper hydraulic cylinder according to claim 1, which is characterized in that the face of the u shape tube opening
Area of the product less than the first tracheae and the second tracheostomy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937544.4A CN107882806B (en) | 2017-09-30 | 2017-09-30 | The working method of anti-tamper hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937544.4A CN107882806B (en) | 2017-09-30 | 2017-09-30 | The working method of anti-tamper hydraulic cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN107882806A CN107882806A (en) | 2018-04-06 |
| CN107882806B true CN107882806B (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710937544.4A Active CN107882806B (en) | 2017-09-30 | 2017-09-30 | The working method of 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 |
| JP2002003199A (en) * | 2000-06-27 | 2002-01-09 | Toyota Industries Corp | Lift cylinder and industrial vehicle with the same |
| JP2005163917A (en) * | 2003-12-03 | 2005-06-23 | Toyota Industries Corp | Hydraulic cylinder in industrial vehicle |
| CN202673869U (en) * | 2012-07-13 | 2013-01-16 | 李新德 | Large-scale gate type plate shearing machine hydraulic cylinder with buffer function |
| CN104564908A (en) * | 2014-12-31 | 2015-04-29 | 中船重工中南装备有限责任公司 | Buffer hydraulic cylinder |
| CN205578403U (en) * | 2016-04-19 | 2016-09-14 | 湖南协力液压有限公司 | Butter type hydraulic oil cylinder |
-
2017
- 2017-09-30 CN CN201710937544.4A patent/CN107882806B/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 |
| JP2002003199A (en) * | 2000-06-27 | 2002-01-09 | Toyota Industries Corp | Lift cylinder and industrial vehicle with the same |
| JP2005163917A (en) * | 2003-12-03 | 2005-06-23 | Toyota Industries Corp | Hydraulic cylinder in industrial vehicle |
| CN202673869U (en) * | 2012-07-13 | 2013-01-16 | 李新德 | Large-scale gate type plate shearing machine hydraulic cylinder with buffer function |
| CN104564908A (en) * | 2014-12-31 | 2015-04-29 | 中船重工中南装备有限责任公司 | Buffer hydraulic cylinder |
| CN205578403U (en) * | 2016-04-19 | 2016-09-14 | 湖南协力液压有限公司 | Butter type hydraulic oil cylinder |
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| Publication number | Publication date |
|---|---|
| CN107882806A (en) | 2018-04-06 |
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