CN206338268U - A kind of mine hydraulic bracket control system - Google Patents
A kind of mine hydraulic bracket control system Download PDFInfo
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- CN206338268U CN206338268U CN201621411560.7U CN201621411560U CN206338268U CN 206338268 U CN206338268 U CN 206338268U CN 201621411560 U CN201621411560 U CN 201621411560U CN 206338268 U CN206338268 U CN 206338268U
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Abstract
The utility model is related to hydraulic support technical field, specifically related to a kind of mine hydraulic bracket control system, including oil groove, variable pump, safety valve, three position four-way directional control valve, one-way throttle valve, flow divider-combiner, bi-bit bi-pass reversal 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 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 safeguard.
Description
Technical field
The utility model is related to hydraulic support technical field, and in particular to a kind of mine hydraulic bracket control system.
Background technology
With the improvement of people ' s living standards, to mineral resources the need for it is also increasing.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.
Utility model content
The purpose of this utility model is to provide a kind of mine hydraulic bracket control system simple in construction, Synchronization Control.
In order to achieve the above object, the technical solution adopted in the utility model is:A kind of mine hydraulic bracket control system,
Including oil groove, variable pump, safety valve, three position four-way directional control valve, one-way throttle valve, flow divider-combiner, bi-bit bi-pass reversal valve,
One 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 one-way valve,
The oil inlet of the variable pump is connected with oil groove, and the oil-out of the variable pump and the P hydraulic fluid ports of three position four-way directional control valve are connected, institute
The oil-out of the oil inlet and variable pump of stating safety valve is connected, and the oil-out of the safety valve is connected with oil groove, described three four
The A hydraulic fluid ports of logical reversal valve and the oil inlet of one-way throttle valve are connected, the oil-out of the one-way throttle valve and flow divider-combiner
Oil inlet is connected, and an oil-out of the flow divider-combiner is connected with the oil inlet of the first hydraulic control one-way valve, another oil-out and
The oil inlet connection of second hydraulic control one-way valve, the oil-out of first hydraulic control one-way valve and the rod chamber of first hydraulic cylinder connect
Connect, the oil-out of second hydraulic control one-way valve and the rod chamber of second hydraulic cylinder are connected, the one of the bi-bit bi-pass reversal valve
Hydraulic fluid port is connected with the oil inlet of the first hydraulic control one-way valve, and another hydraulic fluid port is connected with the oil inlet of the second hydraulic control one-way valve, and described
The rodless cavity of one hydraulic cylinder and the rodless cavity of second hydraulic cylinder are connected, the oil inlet of the overflow pressure-reducing valve and first hydraulic cylinder
Rodless cavity is connected, and the oil-out of the overflow pressure-reducing valve and the B hydraulic fluid ports of three position four-way directional control valve are connected, the overflow pressure-reducing valve
Control mouth is connected with the oil-out of the 3rd hydraulic control one-way valve, and the oil inlet of the 3rd hydraulic control one-way valve is connected with oil groove, described
The control mouth of 3rd hydraulic control one-way 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
It is connected with the control mouth of the second hydraulic control one-way valve with the B hydraulic fluid ports of three position four-way directional control valve, the T oil of the three position four-way directional control valve
Mouth is connected with oil groove.
A kind of mine hydraulic bracket control system as described above, is further illustrated as the oil inlet of the variable pump is set
There is oil strainer.
A kind of mine hydraulic bracket control system as described above, is further illustrated as the T of the three position four-way directional control valve
Oil port is provided with cooler.
A kind of mine hydraulic bracket control system as described above, is illustrated further as the cooler is water cooling
Device.
A kind of mine hydraulic bracket control system as described above, further illustrates to be provided with thermometer in the oil groove.
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.
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, one-way throttle valve;6th, shunting collection
Flow valve;7th, bi-bit bi-pass reversal valve;8th, the first hydraulic control one-way valve;9th, the second hydraulic control one-way valve;10th, first hydraulic cylinder;11st, second
Hydraulic cylinder;12nd, overflow pressure-reducing valve;13rd, the 3rd hydraulic control one-way 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, the utility model provide a kind of mine hydraulic bracket control system, including oil groove 1, variable pump 2,
Safety valve 3, three position four-way directional control valve 4, one-way throttle valve 5, flow divider-combiner 6, bi-bit bi-pass reversal valve 7, the first fluid-control one-way
Valve 8, the second hydraulic control one-way valve 9, first hydraulic cylinder 10, second hydraulic cylinder 11, the hydraulic control one-way valve 13 of overflow pressure-reducing valve 12 and the 3rd,
The hydraulic support is by the stretching and retraction of piston rod in hydraulic cylinder come execution.
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 A hydraulic fluid ports of the three position four-way directional control valve 4 are connected with the oil inlet of one-way throttle valve 5, the one-way throttle valve 5
Oil-out is connected with the oil inlet of flow divider-combiner 6, an oil-out of the flow divider-combiner 6 and the first hydraulic control one-way valve 8
Oil inlet is connected, and another oil-out is connected with the oil inlet of the second hydraulic control one-way valve 9, and the flow divider-combiner 6 is used for fluid
Two-way is equally divided into, the oil-out of first hydraulic control one-way valve 8 is connected with the rod chamber of first hydraulic cylinder 10, second liquid
The oil-out of control check valve 9 is connected with the rod chamber of second hydraulic cylinder 11, a hydraulic fluid port and first for the bi-bit bi-pass reversal valve 7
The oil inlet connection of hydraulic control one-way valve 8, another hydraulic fluid port is connected with the oil inlet of the second hydraulic control one-way valve 9, i.e., changed bi-bit bi-pass
It is connected to valve 7 between two oil-outs of flow divider-combiner 6.
The rodless cavity of the first hydraulic cylinder 10 is connected with the rodless cavity of second hydraulic cylinder 11, the overflow pressure-reducing valve 12
Oil inlet is connected with the rodless cavity of first hydraulic cylinder 10, the oil-out of the overflow pressure-reducing valve 12 and the B of three position four-way directional control valve 4
Hydraulic fluid port is connected, and the control mouth of the overflow pressure-reducing valve 12 is connected with the oil-out of the 3rd hydraulic control one-way valve 13, the 3rd hydraulic control
The oil inlet of check valve 13 is connected with oil groove 1, the control mouth of the 3rd hydraulic control one-way valve 13 and the A of three position four-way directional control valve 4
Hydraulic fluid port is connected, and the control mouth of the control mouth of first hydraulic control one-way valve 8 and the second hydraulic control one-way valve 9 commutates with 3-position 4-way
The B hydraulic fluid ports connection of valve 4, the T hydraulic fluid ports of the three position four-way directional control valve 4 are connected with oil groove.Preferably, in three position four-way directional control valve
T hydraulic fluid port of the 4 T oil ports provided with cooler 15, i.e. three position four-way directional control valve 4 is connected with the oil inlet of cooler 15, cooler
15 oil-out is connected with oil groove 1.Oil return is cooled down by cooler 15, so as to ensure oil liquid temperature all the time in normal
In the range of, the system is run steadily in the long term.The cooler 15 is preferably to use water cooler, water cooler cooling effect
Good, being especially suitable for the system uses, and the cooler 15 can also use forced air cooler.For the ease of the oil in observation oil groove 1
Liquid temperature degree, can set thermometer 16 in oil groove 1, and intuitively the oil liquid temperature in oil groove 1 can be entered by thermometer 16
Row observation, improves 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 8, the second hydraulic control one-way valve 9 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 is by unidirectional section
Valve 5 is flowed, then is shunted through flow divider-combiner 6, the rod chamber of two hydraulic cylinders is reached by two hydraulic control one-way valves, is promoted on piston rod
OK, so that hydraulic support corresponding actions, now the 3rd hydraulic control one-way valve 13 at the control mouth of overflow pressure-reducing valve 12 is in control oil
Opened in the presence of pressure, the control port of overflow pressure-reducing valve 12 is connected with oil groove 1, the pressure value quilt of the overflow of overflow pressure-reducing valve 12
Zero is adjusted to, the oil of two hydraulic cylinder rodless cavities can be flowed back in oil groove 1 without the overfall by overflow pressure-reducing valve 12 of back pressure.When
When piston rod reaches top, bi-bit bi-pass reversal valve 7 is acted, and in left station, the connection of two branch roads makes the piston of two hydraulic cylinders
Bar is attained by terminal, and asynchronous error is eliminated in terminal, and three position four-way directional control valve and bi-bit bi-pass reversal valve dead electricity are disconnected afterwards
Open, piston rod is parked in top.
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 12 enter the rodless cavity of two hydraulic cylinders after depressurizing, promotion piston rod is descending, and now overflow pressure-reducing valve 12 is controlled
The control mouth of the 3rd hydraulic control one-way valve 13 at donsole is connected with fuel tank 1, and the 3rd hydraulic control single valve, which is in, is closed, therefore overflow is depressurized
Valve 12 works under the working condition of setting, plays pressure-reduced and-regulated.First hydraulic control one-way valve 8 and the second hydraulic control one-way valve 9
Opened in the presence of control oil pressure, the oil of two hydraulic cylinder cavity of resorptions is by hydraulic control one-way valve, flow divider-combiner 6, one-way throttle valve
5th, oil groove 1 is flowed back to after three position four-way directional control valve 4.One-way throttle valve 5 prevents that hydraulic stem decrease speed is too fast.Using electricity
Liquid reversal valve, makes commutation steady, impacts small.Overflow pressure-reducing valve 12 is dexterously used, the active force of hydraulic support when making work
Keep constant, it is easy to adjust.Simple system is set to be reliable, easy to maintenance, synchronization accuracy height, synchronous error using flow divider-combiner 6
Reachable is 1-3%, and takes terminal synchronous error removing measure.
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 control system, it is characterised in that:Including oil groove, variable pump, safety valve, 3-position 4-way commutation
Valve, one-way throttle valve, flow divider-combiner, bi-bit bi-pass reversal valve, the first hydraulic control one-way valve, the second hydraulic control one-way valve, the first liquid
Cylinder pressure, second hydraulic cylinder, overflow pressure-reducing valve and the 3rd hydraulic control one-way valve, the oil inlet of the variable pump is connected with oil groove, described
The oil-out of 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 the oil-out of variable pump
Connection, the oil-out of the safety valve is connected with oil groove, the A hydraulic fluid ports of the three position four-way directional control valve and the oil-feed of one-way throttle valve
Mouth connection, the oil-out of the one-way throttle valve and the oil inlet of flow divider-combiner are connected, and the one of the flow divider-combiner is fuel-displaced
Mouthful it is connected with the oil inlet of the first hydraulic control one-way valve, another oil-out is connected with the oil inlet of the second hydraulic control one-way valve, described the
The oil-out of one hydraulic control one-way valve and the rod chamber of first hydraulic cylinder are connected, the oil-out and second of second hydraulic control one-way valve
The rod chamber connection of hydraulic cylinder a, hydraulic fluid port of the bi-bit bi-pass reversal valve is connected with the oil inlet of the first hydraulic control one-way valve, separately
One hydraulic fluid port is connected with the oil inlet of the second hydraulic control one-way valve, the rodless cavity of the first hydraulic cylinder and the rodless cavity of second hydraulic cylinder
The rodless cavity of connection, the oil inlet of the overflow pressure-reducing valve and first hydraulic cylinder is connected, the oil-out of the overflow pressure-reducing valve with
The B hydraulic fluid ports connection of three position four-way directional control valve, the control mouth of the overflow pressure-reducing valve is connected with the oil-out of the 3rd hydraulic control one-way valve,
The oil inlet of 3rd hydraulic control one-way valve is connected with oil groove, and control mouth and the 3-position 4-way of the 3rd hydraulic control one-way valve commutate
The A hydraulic fluid ports connection of valve, the control mouth of first hydraulic control one-way valve and the control mouth of the second hydraulic control one-way valve are and 3-position 4-way
The B hydraulic fluid ports connection of reversal valve, the T hydraulic fluid ports of the three position four-way directional control valve are connected with oil groove.
2. a kind of mine hydraulic bracket control system according to claim 1, it is characterised in that:The oil-feed of the variable pump
Mouth is provided with oil strainer.
3. a kind of mine hydraulic bracket control system according to claim 1, it is characterised in that:The 3-position 4-way commutation
The T oil ports of valve are provided with cooler.
4. a kind of mine hydraulic bracket control system according to claim 3, it is characterised in that:The cooler is water-cooled
But device.
5. a kind of mine hydraulic bracket control system according to claim 1, it is characterised in that:Provided with temperature in the oil groove
Degree meter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621411560.7U CN206338268U (en) | 2016-12-21 | 2016-12-21 | A kind of mine hydraulic bracket control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621411560.7U CN206338268U (en) | 2016-12-21 | 2016-12-21 | A kind of mine hydraulic bracket control system |
Publications (1)
Publication Number | Publication Date |
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CN206338268U true CN206338268U (en) | 2017-07-18 |
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ID=59301840
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Application Number | Title | Priority Date | Filing Date |
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CN201621411560.7U Expired - Fee Related CN206338268U (en) | 2016-12-21 | 2016-12-21 | A kind of mine hydraulic bracket control system |
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CN (1) | CN206338268U (en) |
Cited By (1)
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 | Hydraulic power lifting system of stereo bus garage |
-
2016
- 2016-12-21 CN CN201621411560.7U patent/CN206338268U/en not_active Expired - Fee Related
Cited By (1)
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 | Hydraulic power lifting system of stereo bus garage |
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Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20171221 |
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CF01 | Termination of patent right due to non-payment of annual fee |