CN108916148A - A kind of Mine anchorage cable tensioning machine hydraulic system - Google Patents
A kind of Mine anchorage cable tensioning machine hydraulic system Download PDFInfo
- Publication number
- CN108916148A CN108916148A CN201810854939.2A CN201810854939A CN108916148A CN 108916148 A CN108916148 A CN 108916148A CN 201810854939 A CN201810854939 A CN 201810854939A CN 108916148 A CN108916148 A CN 108916148A
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- CN
- China
- Prior art keywords
- valve
- tensioning
- cylinder
- emulsion
- oil cylinder
- 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.)
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Classifications
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- 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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
Abstract
The present invention relates to a kind of Mine anchorage cable tensioning machine hydraulic systems.The system includes that main reversing valve, speed governing valve, check valve, pilot operated directional control valve, hydraulic control one-way valve, pressurized cylinder, tensioning oil cylinder and safety valve are constituted.Add speed governing valve and pressurized cylinder between main reversing valve and anchorage cable stretching machine, speed governing valve can need to adjust according to actual condition flow, and pressurized cylinder is for being pressurized, when the pressure needed for tensioning oil cylinder is low, oil liquid all passes through hydraulic control one-way valve and flows directly into tensioning oil cylinder, so as to the fast operating in anticipated orientation.When loading increase on tensioning oil cylinder, required pressure is improved, and the charged piston of pressurized cylinder starts reciprocating action pressurization, until meeting stretching machine pressure needs.When pressure overload, can be unloaded by safety valve.The anchorage cable stretching machine hydraulic system has comprehensively considered pressurization, speed regulation and safeguard protection, meets continuous Automatic-boosting requirement, solves the problems such as anchorage cable stretching machine tensioning oil cylinder working-pressure is insufficient, speed is not easy to control.
Description
Technical field
The present invention relates to a kind of mining auxiliary device more particularly to a kind of Mine anchorage cable tensioning machine hydraulic systems.
Background technique
In excavation face in coal mine operation, the use of fully-mechanized digging machine is greatly improved working efficiency, reduces the labour of worker
Intensity.But when carrying out full cable bolting to top plate, generally using artificial manually anchorage cable stretching machine, labor intensity of workers is big,
And speed is extremely slow, has not adapted to the efficient production requirement of safety of coal mines.If stretching machine directly uses the hydraulic system of fully-mechanized digging machine,
Fully-mechanized digging machine hydraulic system pressure is usually no more than 20MPa, and anchorage cable stretching machine needs pressure 25-30MPa, it is clear that is unsatisfactory for anchor cable
The design requirement of stretching force machine.
In addition, be introduced directly into the emulsion of fully-mechanized digging machine hydraulic system, using reversal valve directly to anchor cable tensioning machine tool fuel feeding,
The movement velocity of tensioning oil cylinder is extremely slow, and worker should not control, or even there are security risks.How timely and effectively anchor cable to be applied
Enough stretching forces can adjust flow according to actual needs, guarantee supporting quality, need to design a kind of new mining stretching machine liquid
Pressure system.
Summary of the invention
A kind of the object of the present invention is to provide systems flexible, the simple Mine anchorage cable tensioning machine hydraulic system of structure.
Used technical solution is the present invention to solve above-mentioned technical problem：Devise a kind of Mine anchorage cable stretching machine liquid
Pressure system solves the problems, such as Mine anchorage cable stretching machine operating pressure deficiency using boost-up circuit.
A kind of Mine anchorage cable tensioning machine hydraulic system of the invention, including main reversing valve, speed governing valve, check valve, hydraulic control change
It is constituted to valve, hydraulic control one-way valve, pressurized cylinder, tensioning oil cylinder and safety valve.Main reversing valve is used to control the flow direction of emulsion,
When main reversing valve is in left position, the emulsion of oil inlet P flows to speed governing valve, and emulsion is divided into two-way later, and the first via is direct
The rodless cavity of tensioning oil cylinder is reached by hydraulic control one-way valve, the first check valve of secondary route flows to the A chamber of pressurized cylinder, pressurized cylinder it is small
Piston moves down under the action of emulsion together with big piston, under pilot operated directional control valve is under oil circuit n action of hydraulic force
Position, the C chamber emulsion of pressurized cylinder flows to the B chamber of pressurized cylinder 7 through pilot operated directional control valve, after flowing to main reversing valve through the first speed governing valve
Oil return opening O is flowed to, when small piston, which moves down into, connects the A chamber of pressurized cylinder and oil circuit m, pilot operated directional control valve commutation is in upper,
Emulsion flows to the C chamber of pressurized cylinder through pilot operated directional control valve, and big piston is pushed to move up, and realizes to the pressurization of tensioning oil cylinder, liquid replenishing function.
After moving to certain position on small piston, the control chamber oil liquid of pilot operated directional control valve flows to the B chamber of pressurized cylinder through oil circuit m, and hydraulic control is changed
It is reset to bottom under oil circuit n action of hydraulic force to valve, this process moves in circles progress, to reach required for anchorage cable stretching machine
Pressure 25-30MPa.
When main reversing valve is in right position, emulsion flows to the rod chamber of tensioning oil cylinder, fluid-control one-way through the first speed governing valve
Valve is opened under oil circuit f action of hydraulic force, and the piston of tensioning oil cylinder moves to left, and the emulsion of rodless cavity flows back to oil through hydraulic control one-way valve
Case.Second speed governing valve can need to adjust according to actual condition flow, and the first speed governing valve plays speed regulation and back pressure effect, can keep tensioning
The movement of oil cylinder is steady.When the pressure overload of tensioning oil cylinder, can be unloaded by safety valve.
The beneficial effects of the invention are as follows：
Mine anchorage cable tensioning machine hydraulic system has comprehensively considered pressurization, speed regulation and safeguard protection, meets continuous Automatic-boosting
It is required that solving the problems such as anchorage cable stretching machine tensioning oil cylinder working-pressure is insufficient, speed is not easy to control.
Detailed description of the invention
Fig. 1 is Mine anchorage cable tensioning machine hydraulic system of the invention.
Wherein：1. main reversing valve；2. the first speed governing valve；3. the second speed governing valve；4. the first check valve；5. pilot operated directional control valve；
6. hydraulic control one-way valve；7. pressurized cylinder；8. second one-way valve；9. tensioning oil cylinder；10. safety valve；11. big piston；12. small piston；
P. oil inlet；O. oil return opening.
Specific embodiment
In Fig. 1, which includes main reversing valve 1, the first speed governing valve 2, the second speed governing valve
3, the first check valve 4, pilot operated directional control valve 5, hydraulic control one-way valve 6, pressurized cylinder 7, second one-way valve 8, tensioning oil cylinder 9, safety valve 10.
Main reversing valve 1 is used to control the flow direction of emulsion, and when main reversing valve 1 is in left position, the emulsion of oil inlet P flows to the
Two speed governing valves 3, emulsion is divided into two-way later, and the first via is directly reached the rodless cavity of tensioning oil cylinder 9 by hydraulic control one-way valve 6, the
Two the first check valves 4 of routing flow to the A chamber of pressurized cylinder 7, and the small piston 12 of pressurized cylinder 7 is under the action of emulsion, together with big living
Plug 11 moves down together, and pilot operated directional control valve 5 is in bottom under oil circuit n action of hydraulic force, and the C chamber emulsion of pressurized cylinder 7 is through hydraulic control
Reversal valve 5 flows to the B chamber of pressurized cylinder 7, oil return opening O is flowed to after flowing to main reversing valve 1 through the first speed governing valve 2, when small piston 12
When moving down into the A chamber for making pressurized cylinder 7 and oil circuit m connection, the commutation of pilot operated directional control valve 6 is in upper, and emulsion is through pilot operated directional control valve 6
The C chamber for flowing to pressurized cylinder 7 pushes big piston 11 to move up, and realizes to the pressurization of tensioning oil cylinder 9, liquid replenishing function.When small piston 12 moves up
To certain position, the control chamber oil liquid of pilot operated directional control valve 6 flows to the B chamber of pressurized cylinder 7 through oil circuit m, and pilot operated directional control valve 6 is in oil circuit
It is reset to bottom under n action of hydraulic force, this process moves in circles progress, until the pressure needed for reaching desired tensioning.
Second speed governing valve 3 can need to adjust according to actual condition flow, and the first speed governing valve 2 plays speed regulation and back pressure effect, can
It keeps the movement of tensioning oil cylinder 7 steady, when the pressure overload of tensioning oil cylinder 7, can be unloaded by safety valve 10.Work as main reversing valve
1 be in right position when, emulsion flows to the rod chamber of tensioning oil cylinder 7 through the first speed governing valve 2, and hydraulic control one-way valve 6 is in oil circuit f hydraulic coupling
Effect is lower to open, and the piston of tensioning oil cylinder 7 moves to left, and the emulsion of rodless cavity flows back to fuel tank through hydraulic control one-way valve 6.
Claims (2)
1. a kind of Mine anchorage cable tensioning machine hydraulic system, including main reversing valve (1), the first speed governing valve (2), the second speed governing valve (3),
First check valve (4), pilot operated directional control valve (5), hydraulic control one-way valve (6), pressurized cylinder (7), second one-way valve (8), tensioning oil cylinder
(9), safety valve (10)；It is characterized in that：The main reversing valve (1) is used to control the flow direction of emulsion, when main commutation
When valve (1) is in left position, the emulsion of oil inlet P flows to the second speed governing valve (3), and emulsion is divided into two-way later, and the first via is straight
Connect the rodless cavity that tensioning oil cylinder (9) are reached by hydraulic control one-way valve (6)；The first check valve of secondary route (4) flows to pressurized cylinder (7)
A chamber, the small piston (12) of pressurized cylinder (7) move down, pilot operated directional control valve under the action of emulsion together with big piston (11)
(5) in bottom under oil circuit n action of hydraulic force, the C chamber emulsion of pressurized cylinder (7) flows to pressurized cylinder through pilot operated directional control valve (5)
(7) B chamber flows to oil return opening O after flowing to main reversing valve (1) through the first speed governing valve (2)；The small piston (12) moves down into
When connecting the A chamber of pressurized cylinder (7) and oil circuit m, pilot operated directional control valve (6) commutation is in upper, and emulsion is through pilot operated directional control valve (6)
The C chamber for flowing to pressurized cylinder (7) pushes big piston (11) to move up, and realizes to tensioning oil cylinder (9) pressurization, liquid replenishing function；Described is small
After moving to certain position on piston (12), the control chamber oil liquid of pilot operated directional control valve (6) flows to the B chamber of pressurized cylinder (7) through oil circuit m,
Pilot operated directional control valve (6) is reset to bottom under oil circuit n action of hydraulic force, this process moves in circles progress, desired until reaching
Until pressure needed for tensioning.
2. a kind of Mine anchorage cable tensioning machine hydraulic system according to claim 1, it is characterised in that：Second speed regulation
Valve (3) can need to adjust flow according to actual condition；First speed governing valve (2) plays speed regulation and back pressure effect, can keep opening
It draws the movement of oil cylinder (7) steady, when the pressure overload of tensioning oil cylinder (7), can be unloaded by safety valve (10)；The master changes
When being in right position to valve (1), emulsion flows to the rod chamber of tensioning oil cylinder (7), hydraulic control one-way valve (6) through the first speed governing valve (2)
It is opened under oil circuit f action of hydraulic force, the piston of tensioning oil cylinder (7) moves to left, and the emulsion of rodless cavity is flowed through hydraulic control one-way valve (6)
Oil return box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810854939.2A CN108916148A (en) | 2018-07-30 | 2018-07-30 | A kind of Mine anchorage cable tensioning machine hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810854939.2A CN108916148A (en) | 2018-07-30 | 2018-07-30 | A kind of Mine anchorage cable tensioning machine hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108916148A true CN108916148A (en) | 2018-11-30 |
Family
ID=64419196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810854939.2A Pending CN108916148A (en) | 2018-07-30 | 2018-07-30 | A kind of Mine anchorage cable tensioning machine hydraulic system |
Country Status (1)
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| CN (1) | CN108916148A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820822A (en) * | 2019-11-06 | 2020-02-21 | 晋中学院 | Multifunctional shovel-plate type heavy-duty carrier |
| CN111810500A (en) * | 2019-04-11 | 2020-10-23 | 活塞动力有限责任公司 | Hydraulic amplifier arrangement |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4757685A (en) * | 1987-08-24 | 1988-07-19 | Caterpillar Inc. | Pressure responsive hydraulic control circuit |
| CN103029174A (en) * | 2012-12-30 | 2013-04-10 | 淮阴工学院 | Control system for coal mine underground water-jet cutting machine |
| CN203163982U (en) * | 2013-04-08 | 2013-08-28 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Integrated testing bench of valve for hydraulic support for coal mine |
| CN103883338A (en) * | 2014-03-26 | 2014-06-25 | 安徽理工大学 | Hydraulic support stand column self-service pressurizing system comprising hydraulic pressurizer |
| CN105298949A (en) * | 2015-11-23 | 2016-02-03 | 安徽理工大学 | Portable gas boosting device |
| CN105502234A (en) * | 2015-09-17 | 2016-04-20 | 浙江大学宁波理工学院 | Speed-adjustable high-thrust hydraulic lifting table |
| CN205910075U (en) * | 2016-07-19 | 2017-01-25 | 成都源云机械有限公司 | A testing arrangement for hydraulic hose withstand voltage test |
| JP2017515711A (en) * | 2014-03-11 | 2017-06-15 | ホン，シャオヤンＨＵＮＧ， Ｓｈａｏ−Ｙａｎｇ | Two-stage hydraulic amplification device for mold functional parts |
-
2018
- 2018-07-30 CN CN201810854939.2A patent/CN108916148A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4757685A (en) * | 1987-08-24 | 1988-07-19 | Caterpillar Inc. | Pressure responsive hydraulic control circuit |
| CN103029174A (en) * | 2012-12-30 | 2013-04-10 | 淮阴工学院 | Control system for coal mine underground water-jet cutting machine |
| CN203163982U (en) * | 2013-04-08 | 2013-08-28 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Integrated testing bench of valve for hydraulic support for coal mine |
| JP2017515711A (en) * | 2014-03-11 | 2017-06-15 | ホン，シャオヤンＨＵＮＧ， Ｓｈａｏ−Ｙａｎｇ | Two-stage hydraulic amplification device for mold functional parts |
| CN103883338A (en) * | 2014-03-26 | 2014-06-25 | 安徽理工大学 | Hydraulic support stand column self-service pressurizing system comprising hydraulic pressurizer |
| CN105502234A (en) * | 2015-09-17 | 2016-04-20 | 浙江大学宁波理工学院 | Speed-adjustable high-thrust hydraulic lifting table |
| CN105298949A (en) * | 2015-11-23 | 2016-02-03 | 安徽理工大学 | Portable gas boosting device |
| CN205910075U (en) * | 2016-07-19 | 2017-01-25 | 成都源云机械有限公司 | A testing arrangement for hydraulic hose withstand voltage test |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810500A (en) * | 2019-04-11 | 2020-10-23 | 活塞动力有限责任公司 | Hydraulic amplifier arrangement |
| US11105346B2 (en) * | 2019-04-11 | 2021-08-31 | Pistonpower Aps | Hydraulic pressure amplifier arrangement |
| CN111810500B (en) * | 2019-04-11 | 2022-03-11 | 活塞动力有限责任公司 | Hydraulic amplifier arrangement |
| CN110820822A (en) * | 2019-11-06 | 2020-02-21 | 晋中学院 | Multifunctional shovel-plate type heavy-duty carrier |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |