CN206530358U - A kind of mine hydraulic bracket multistage speed control system - Google Patents
A kind of mine hydraulic bracket multistage speed control system Download PDFInfo
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- CN206530358U CN206530358U CN201621374721.XU CN201621374721U CN206530358U CN 206530358 U CN206530358 U CN 206530358U CN 201621374721 U CN201621374721 U CN 201621374721U CN 206530358 U CN206530358 U CN 206530358U
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Abstract
The utility model is related to mine hydraulic bracket technical field, specifically related to a kind of mine hydraulic bracket multistage speed control system, including oil groove, variable pump, safety valve, three position four-way directional control valve, multiple snap action mechanisms being arranged in parallel, flow divider-combiner, first hydraulic control one-way valve, second hydraulic control one-way valve, first hydraulic cylinder, second hydraulic cylinder, overflow pressure-reducing valve and the 3rd hydraulic control one-way valve, the present apparatus is simple in construction, reduce cost, control effect is good, can be to synchronizing control between hydraulic support, ensure the normal operation of hydraulic support, and it is easy to adjust, it is easy to maintain.By setting multiple speed adjusting gears, make hydraulic support that there are a variety of lifting speeds, so as to realize multistep speed regulation, according to needs are used, select rational lifting speed, improve operating efficiency.
Description
Technical field
The utility model is related to mine hydraulic bracket technical field, and in particular to a kind of mine hydraulic bracket multistage speed control
System processed.
Background technology
As the improvement of people's living standards, also increasing the need for mineral resources.In mining, hydraulic support is
One of its essential equipment, main its support, lift action.But when needing two hydraulic supports, generally require it and enter
Row synchronization action, existing hydraulic support control effect is bad, and structure is more complicated, while the lifting speed of hydraulic support is more single
One, it is impossible to meet live needs, reduce operating efficiency.
Utility model content
The purpose of this utility model is to provide that a kind of simple in construction, multistage speed is optional, Synchronization Control mining hydraulic
Support multistage speed control system.
In order to achieve the above object, the technical solution adopted in the utility model is：A kind of mine hydraulic bracket multistage speed
Control system, including oil groove, variable pump, safety valve, three position four-way directional control valve, multiple snap action mechanisms being arranged in parallel, shunting collection
Flow valve, the first hydraulic control one-way valve, the second hydraulic control one-way valve, first hydraulic cylinder, second hydraulic cylinder, overflow pressure-reducing valve and the 3rd hydraulic control
Check valve, the oil inlet of the variable pump is connected with oil groove, the oil-out of the variable pump and the P hydraulic fluid ports of three position four-way directional control valve
Connection, the oil inlet of the safety valve and the oil-out of variable pump are connected, and the oil-out of the safety valve is connected with oil groove, described
Snap action mechanism includes bi-bit bi-pass reversal valve and flow speed control valve, the oil-out of the bi-bit bi-pass reversal valve and the oil inlet of flow speed control valve
The oil inlet of bi-bit bi-pass reversal valve is connected with the A hydraulic fluid ports of three position four-way directional control valve in connection, the snap action mechanism, the speed
The oil-out of flow speed control valve is connected with the oil inlet of flow divider-combiner in degree mechanism, an oil-out of the flow divider-combiner and the
The oil inlet connection of one hydraulic control one-way valve, another oil-out is connected with the oil inlet of the second hydraulic control one-way valve, first hydraulic control
The oil-out of check valve and the rod chamber of first hydraulic cylinder are connected, the oil-out and second hydraulic cylinder of second hydraulic control one-way valve
Rod chamber connection, the rodless cavity of the rodless cavity of the first hydraulic cylinder and second hydraulic cylinder connects, the overflow pressure-reducing valve
Oil inlet and the rodless cavity of first hydraulic cylinder are connected, the oil-out of the overflow pressure-reducing valve and the B hydraulic fluid ports of three position four-way directional control valve
Connection, the control mouth of the overflow pressure-reducing valve is connected with the oil-out of the 3rd hydraulic control one-way valve, the 3rd hydraulic control one-way valve
Oil inlet is connected with oil groove, and the A hydraulic fluid ports of the control mouth of the 3rd hydraulic control one-way valve and three position four-way directional control valve are connected, and described the
The control mouth of one hydraulic control one-way valve and the control mouth of the second hydraulic control one-way valve are connected with the B hydraulic fluid ports of three position four-way directional control valve, institute
The T hydraulic fluid ports for stating three position four-way directional control valve are connected with oil groove.
A kind of mine hydraulic bracket multistage speed control system as described above, is further illustrated as the variable pump
Oil inlet is provided with oil strainer.
A kind of mine hydraulic bracket multistage speed control system as described above, is further illustrated as the 3-position 4-way
The T oil ports of reversal valve are provided with cooler.
A kind of mine hydraulic bracket multistage speed control system as described above, is illustrated further as the cooler
For water cooler.
A kind of mine hydraulic bracket multistage speed control system as described above, further illustrates to set in the oil groove
There is thermometer.
The beneficial effects of the utility model are：The present apparatus is simple in construction, reduces cost, and control effect is good, can be to liquid
Control is synchronized between pressure support, it is ensured that the normal operation of hydraulic support, and it is easy to adjust, it is easy to safeguard.It is many by setting
Individual speed adjusting gear, makes hydraulic support have a variety of lifting speeds, so as to realize multistep speed regulation, according to needs are used, selection is reasonable
Lifting speed, improve operating efficiency.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure：1st, oil groove；2nd, variable pump；3rd, safety valve；4th, three position four-way directional control valve；5th, flow divider-combiner；6th, the first liquid
Control check valve；7th, the second hydraulic control one-way valve；8th, first hydraulic cylinder；9th, second hydraulic cylinder；10th, overflow pressure-reducing valve；11st, the 3rd hydraulic control
Check valve；12nd, bi-bit bi-pass reversal valve；13rd, flow speed control valve；14th, oil strainer；15th, cooler；16th, thermometer.
Embodiment
The utility model embodiment is further elaborated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of mine hydraulic bracket multistage speed control system that the utility model is provided, including oil groove 1,
Variable pump 2, safety valve 3, three position four-way directional control valve 4, multiple snap action mechanisms being arranged in parallel, flow divider-combiner 5, the first hydraulic control list
To valve 6, the second hydraulic control one-way valve 7, first hydraulic cylinder 8, second hydraulic cylinder 9, the hydraulic control one-way valve 11 of overflow pressure-reducing valve 10 and the 3rd.
The oil inlet of the variable pump 2 is connected with oil groove 1, and oil strainer 14 can also be set in the oil inlet of variable pump 2,
Fluid is filtered by oil strainer 14, so as to ensure to enter the cleaning of fluid in system, protects other in system to set
Standby uses safety, extends the service life of the system.
The oil-out of the variable pump 2 is connected with the P hydraulic fluid ports of three position four-way directional control valve 4, the oil inlet of the safety valve 3 with
The oil-out connection of variable pump 2, the oil-out of the safety valve 3 is connected with oil groove 1, the Opening pressure value root of the safety valve 3
Decided in its sole discretion according to service condition, when the oil liquid pressure that variable pump 2 is exported is too high, safety valve 3 opens pressure release, it is to avoid hydraulic oil
Impact of the liquid to equipment.
The snap action mechanism include bi-bit bi-pass reversal valve 12 and flow speed control valve 13, the bi-bit bi-pass reversal valve 12 it is fuel-displaced
Mouth is connected with the oil inlet of flow speed control valve 13, and the oil inlet of bi-bit bi-pass reversal valve 12 is changed with 3-position 4-way in the snap action mechanism
Connected to the A hydraulic fluid ports of valve 4, oil inlet of the oil-out of flow speed control valve 13 with flow divider-combiner 5 is connected in the snap action mechanism, one
Individual snap action mechanism represents a kind of speed, and speed aperture of flow speed control valve 13 in the snap action mechanism is determined, the number of the snap action mechanism
It is fixed that amount is not limited, and is decided in its sole discretion according to service condition.
One oil-out of the flow divider-combiner 5 is connected with the oil inlet of the first hydraulic control one-way valve 6, another oil-out and
The oil inlet connection of two hydraulic control one-way valves 7, the flow divider-combiner 5 is used to fluid being equally divided into two-way, so as to realize to two
The Synchronization Control of hydraulic cylinder.
The oil-out of first hydraulic control one-way valve 6 is connected with the rod chamber of first hydraulic cylinder 8, second fluid-control one-way
The oil-out of valve 7 is connected with the rod chamber of second hydraulic cylinder 9, the rodless cavity of the first hydraulic cylinder 8 and the nothing of second hydraulic cylinder 9
Rod cavity is connected, and the oil inlet of the overflow pressure-reducing valve 10 is connected with the rodless cavity of first hydraulic cylinder 8, the overflow pressure-reducing valve 10
Oil-out is connected with the B hydraulic fluid ports of three position four-way directional control valve 4, control mouth and the 3rd hydraulic control one-way valve 11 of the overflow pressure-reducing valve 10
Oil-out connection, the oil inlet of the 3rd hydraulic control one-way valve 11 is connected with oil groove 1, the control of the 3rd hydraulic control one-way valve 11
Donsole is connected with the A hydraulic fluid ports of three position four-way directional control valve 4, the control mouth of first hydraulic control one-way valve 8 and the second hydraulic control one-way valve 9
Control mouth be connected with the B hydraulic fluid ports of three position four-way directional control valve 4, the T hydraulic fluid ports of the three position four-way directional control valve 4 are connected with oil groove 1.
Cooler 15 can also be set in the T oil ports of three position four-way directional control valve 4, oil return is cooled down by cooler 15, so that
Ensure that oil liquid temperature in normal range (NR), makes the system run steadily in the long term all the time.The cooler 15 is preferably to use water
Cooler, water cooler good cooling results are especially suitable for the system and used, and the cooler 15 can also use forced air cooler.
For the ease of the oil liquid temperature in observation oil groove 1, thermometer 16 can be set in oil groove 1, can be directly perceived by thermometer 16
The oil liquid temperature in oil groove 1 is observed, improve operating efficiency.
Utility model works principle is：Halted state, when three position four-way directional control valve 4 is in middle position, the first hydraulic control
Check valve 6, the second hydraulic control one-way valve 7 are in the state closed, and the piston rod of two hydraulic cylinders can be parked in optional position, so that
Hydraulic support stops at an arbitrary position.
Propradation, three position four-way directional control valve 4 is in left station, and the high pressure liquid force feed that variable pump 2 is exported passes through speed machine
Structure, is illustrated by taking leftmost snap action mechanism as an example here, and at this moment bi-bit bi-pass reversal valve 12 obtains electric in the snap action mechanism
The dead electricity of bi-bit bi-pass reversal valve 12 shut-off in conducting, other snap action mechanisms, because the aperture of flow speed control valve 13 is adjusted in advance
It is good, therefore select the snap action mechanism to be to represent specific lifting speed, at this moment fluid is flowed through after the snap action mechanism, then through flow distributing and collecting
Valve 5 is shunted, and the rod chamber of two hydraulic cylinders is reached by two hydraulic control one-way valves, promotes piston rod up, so that hydraulic support phase
It should act, now the 3rd hydraulic control one-way valve 11 at the control mouth of overflow pressure-reducing valve 10 is opened in the presence of control oil pressure, overflow
The control port of pressure-reducing valve 10 is connected with oil groove 1, and the pressure value of the overflow of overflow pressure-reducing valve 10 is adjusted to zero, two hydraulic cylinders without
The oil of rod cavity can be flowed back in oil groove 1 without the overfall by overflow pressure-reducing valve 10 of back pressure.When piston rod reaches top, three
Position and four-way reversing valve 4 and the dead electricity of bi-bit bi-pass reversal valve 12 disconnect, and piston rod is parked in top.By setting multiple speed adjusting gears,
Make hydraulic support that there are a variety of lifting speed, so as to realize multistep speed regulation, according to needs are used, select rational lifting speed,
Operating efficiency is improved, with good practicality.
Decline state, three position four-way directional control valve 4 is in right working position, and the hydraulic oil that variable pump 2 is exported commutates through 3-position 4-way
Valve 4, overflow pressure-reducing valve 10 enter the rodless cavity of two hydraulic cylinders after depressurizing, promotion piston rod is descending, and now overflow pressure-reducing valve 10 is controlled
The control mouth of the 3rd hydraulic control one-way valve 11 at donsole is connected with fuel tank 1, and the 3rd hydraulic control single valve 11, which is in, closes, therefore overflow subtracts
Pressure valve 10 works under the working condition of setting, plays pressure-reduced and-regulated.First hydraulic control one-way valve 6 and the second hydraulic control one-way valve
7 control oil pressure in the presence of open, two hydraulic cylinder cavity of resorptions oil by hydraulic control one-way valve, flow divider-combiner 5, snap action mechanism,
Oil groove 1 is flowed back to after three position four-way directional control valve 4.Using electro-hydraulic reversing valve, make commutation steady, impact small.Overflow is dexterously used
Pressure-reducing valve 10, makes the active force of hydraulic support during work keep constant, easy to adjust.Simple system is made using flow divider-combiner 5
It is reliable, easy to maintenance, synchronization accuracy height.
The utility model is not limited to examples detailed above, in claims limited range of the present utility model, this
The various deformations or amendments that art personnel can make without creative work are protected by this patent.
Claims (5)
1. a kind of mine hydraulic bracket multistage speed control system, it is characterised in that：Including oil groove, variable pump, safety valve, three
Four-way reversing valve, multiple snap action mechanisms being arranged in parallel, flow divider-combiner, the first hydraulic control one-way valve, the second hydraulic control one-way valve,
One hydraulic cylinder, second hydraulic cylinder, overflow pressure-reducing valve and the 3rd hydraulic control one-way valve, the oil inlet of the variable pump are connected with oil groove,
The oil-out of the variable pump and the P hydraulic fluid ports of three position four-way directional control valve are connected, the oil inlet of the safety valve and going out for variable pump
Hydraulic fluid port is connected, and the oil-out of the safety valve is connected with oil groove, and the snap action mechanism includes bi-bit bi-pass reversal valve and flow speed control valve,
The oil-out of the bi-bit bi-pass reversal valve and the oil inlet of flow speed control valve are connected, bi-bit bi-pass reversal valve in the snap action mechanism
Oil inlet is connected with the A hydraulic fluid ports of three position four-way directional control valve, and the oil-out of flow speed control valve is and flow distributing and collecting in the snap action mechanism
The oil inlet connection of valve, an oil-out of the flow divider-combiner is connected with the oil inlet of the first hydraulic control one-way valve, another fuel-displaced
Mouth is connected with the oil inlet of the second hydraulic control one-way valve, the oil-out of first hydraulic control one-way valve and the rod chamber of first hydraulic cylinder
The rod chamber of connection, the oil-out of second hydraulic control one-way valve and second hydraulic cylinder is connected, the first hydraulic cylinder without bar
Chamber and the rodless cavity of second hydraulic cylinder are connected, and the oil inlet of the overflow pressure-reducing valve and the rodless cavity of first hydraulic cylinder are connected, institute
The B hydraulic fluid ports of the oil-out and three position four-way directional control valve of stating overflow pressure-reducing valve are connected, the control mouth and the 3rd of the overflow pressure-reducing valve
The oil-out connection of hydraulic control one-way valve, the oil inlet of the 3rd hydraulic control one-way valve is connected with oil groove, the 3rd fluid-control one-way
The control mouth of valve and the A hydraulic fluid ports of three position four-way directional control valve are connected, the control mouth of first hydraulic control one-way valve and the second hydraulic control list
It is connected to the control mouth of valve with the B hydraulic fluid ports of three position four-way directional control valve, T hydraulic fluid ports and the oil groove of the three position four-way directional control valve connect
Connect.
2. a kind of mine hydraulic bracket multistage speed control system according to claim 1, it is characterised in that：The variable
The oil inlet of pump is provided with oil strainer.
3. a kind of mine hydraulic bracket multistage speed control system according to claim 1, it is characterised in that：Described three
The T oil ports of four-way reversing valve are provided with cooler.
4. a kind of mine hydraulic bracket multistage speed control system according to claim 3, it is characterised in that：The cooling
Device is water cooler.
5. a kind of mine hydraulic bracket multistage speed control system according to claim 1, it is characterised in that：The oil groove
In be provided with thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621374721.XU CN206530358U (en) | 2016-12-14 | 2016-12-14 | A kind of mine hydraulic bracket multistage speed control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621374721.XU CN206530358U (en) | 2016-12-14 | 2016-12-14 | A kind of mine hydraulic bracket multistage speed control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530358U true CN206530358U (en) | 2017-09-29 |
Family
ID=59923068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621374721.XU Expired - Fee Related CN206530358U (en) | 2016-12-14 | 2016-12-14 | A kind of mine hydraulic bracket multistage speed control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410386A (en) * | 2019-07-15 | 2019-11-05 | 洛阳捷瑞精工机械有限公司 | Three-dimensional public transport garage hydraulic power jacking system |
| WO2023206747A1 (en) * | 2022-04-26 | 2023-11-02 | 北京天玛智控科技股份有限公司 | Multi-stage hydraulic speed regulation system, and hydraulic support |
-
2016
- 2016-12-14 CN CN201621374721.XU patent/CN206530358U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410386A (en) * | 2019-07-15 | 2019-11-05 | 洛阳捷瑞精工机械有限公司 | Three-dimensional public transport garage hydraulic power jacking system |
| WO2023206747A1 (en) * | 2022-04-26 | 2023-11-02 | 北京天玛智控科技股份有限公司 | Multi-stage hydraulic speed regulation system, and hydraulic support |
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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: 20170929 Termination date: 20171214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |