CN209146025U - The hydraulic control system of hydraulic support - Google Patents
The hydraulic control system of hydraulic support Download PDFInfo
- Publication number
- CN209146025U CN209146025U CN201821518030.1U CN201821518030U CN209146025U CN 209146025 U CN209146025 U CN 209146025U CN 201821518030 U CN201821518030 U CN 201821518030U CN 209146025 U CN209146025 U CN 209146025U
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- reversal valve
- oil circuit
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Abstract
The hydraulic control system of hydraulic support disclosed by the utility model is superimposed including fuel tank and by the filter assemblies of oil circuit connection, oil suction component, the first elevating ram for driving the first clamp arm, the second elevating ram for driving the second clamp arm, the first and second transverse shifting oil cylinder for driving the first clamp arm transverse shifting, third and fourth transverse shifting oil cylinder for driving the second clamp arm transverse shifting, the first to the 8th reversal valve, first and second to throttle valve, the first and second superposition liquid control valve, the first, second and third superposition pressure reducing valve, overflow valve.The not direct oil return box of the hydraulic oil that the utility model flows out a transverse shifting oil cylinder, but flow into another transverse shifting oil cylinder, the thus unconditional synchronizing moving for realizing the tight paper roll of feed collet, then there is no folded paper rolls to be dropped in translation.Separately increase by a pressure reducing valve on the oil inlet general pipeline between elevating ram and transverse shifting oil cylinder, as long as clamping force is transferred to an OK range, i.e., can clamp and not press from both sides bad paper tube core.
Description
Technical field
The utility model relates to the hydraulic system technical fields in shaftless paper frame, the in particular to hydraulic control of hydraulic support
System.
Background technique
Papermaking equipment, the shaftless paper frame main function for cutting paper mechanical clock are folding and unfolding paper rolls.The clamping of shaftless paper frame is lifted
Paper roll is played, is all realized by hydraulic coupling.For existing shaftless paper frame when putting paper roll and dropping to ground, not paying attention to will be to ground
Pressure is generated between face and paper roll and damages equipment.In addition there is also following three distinct issues for existing shaftless paper frame: one, pressing from both sides
Tight paper roll net synchronization capability is poor；Two, it clamps paper roll and drops to ground, do not pay attention to that slightly upward lift power can be generated, effectively cause equipment
Damage；Three, paper roll clamping force is excessive can press from both sides bad paper tube core, cause unnecessary waste.
There are also be exactly original shaftless paper frame system be all by Hydraulic Adjustable Speed valve come realize clamp after paper roll or so translation,
Its disadvantage is mainly that the frictional resistance that bears in big axis double bond is inconsistent, and hydraulic thrust is consistent, and will lead to translation in this way
When poor synchronization.It is more troublesome to realize that synchronizing moving often must adjust speed governing valve.
Utility model content
The technical problem to be solved by the utility model is to for present in the hydraulic system in existing shaftless paper frame
Problem and a kind of hydraulic control system of hydraulic support is provided.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
The hydraulic control system of hydraulic support, including fuel tank, filter assemblies, oil suction component, the first clamp arm of driving the
One elevating ram, the second elevating ram for driving the second clamp arm, the first transverse shifting for driving the first clamp arm transverse shifting
Oil cylinder and the second transverse shifting oil cylinder, the third transverse shifting oil cylinder and the 4th transverse shifting that drive the second clamp arm transverse shifting
Oil cylinder, the first reversal valve, the second reversal valve, third reversal valve, the 4th reversal valve, the 5th reversal valve, the 6th reversal valve, the 7th change
To valve and the 8th reversal valve, the entrance of the oil suction component is connect by filter assemblies with the fuel tank, the oil suction component
Outlet is connect with oil inlet general pipeline, and the fuel tank is also connect with oil return general pipeline, which is characterized in that
First hydraulic fluid port of first elevating ram be connected to and pass through with the oil inlet general pipeline the first oil circuit, first be superimposed to
Throttle valve, the first superposition liquid control valve are connected to the B of the first reversal valve mouth, and the second hydraulic fluid port of first elevating ram passes through the
Two oil circuits, first are superimposed to throttle valve to be connected to the A of the first reversal valve mouth, and the T mouth of first reversal valve passes through third oil circuit
It being connected to the oil return general pipeline, the P mouth of first reversal valve is connected to by the 4th oil circuit with the oil inlet general pipeline, and described first
It is connected with one first between oil circuit and the third oil circuit and is superimposed pressure reducing valve, between the third oil circuit and the 4th oil circuit
It is connected with an overflow valve；
First hydraulic fluid port of second elevating ram is superimposed by the 5th oil circuit, second to throttle valve, the second superposition hydraulic control
It is connected to valve with the B of the second reversal valve mouth, the second hydraulic fluid port of second elevating ram is superimposed by the 6th oil circuit, second to section
Stream valve is connected to the A of the second reversal valve mouth, and the T mouth of second reversal valve is connected to by the 7th oil circuit with the oil return general pipeline,
The P mouth of second reversal valve is connected to by the 8th oil circuit with the oil inlet general pipeline, the 5th oil circuit and the 7th oil circuit
Between be connected with one second superposition pressure reducing valve；
On the one hand first hydraulic fluid port of the first transverse shifting oil cylinder passes through the first oil of the 9th oil circuit and the 7th reversal valve
On the other hand mouthful connection, the first hydraulic fluid port of the first transverse shifting oil cylinder pass through the tenth oil circuit, second one-way valve and described the
The B mouth of three reversal valves is connected to；Second hydraulic fluid port of the 7th reversal valve passes through the 11st oil circuit, the first check valve and the third
The A mouth of reversal valve is connected to, and first check valve is used in series with the second one-way valve；The T mouth of the third reversal valve is logical
It crosses the 12nd oil circuit to be connected to the oil return general pipeline, the P mouth of the third reversal valve is total by the tenth three oil circuits and the oil inlet
Pipe connection；
First hydraulic fluid port of the second transverse shifting oil cylinder passes through the 14th oil circuit, third check valve and the 4th commutation
The A mouth of valve is connected to, and the 14th oil circuit passes through the 15th oil circuit and the 11st oil communication, second transverse shifting
Second hydraulic fluid port of oil cylinder is connect by the 16th oil circuit with the second hydraulic fluid port of the first transverse shifting oil cylinder, the 16th oil
Road is connected to by the 17th oil circuit, the 4th check valve with the B mouth of the 4th reversal valve；The third check valve and the described 4th
Check valve is used in series；The T mouth of 4th reversal valve is connected to by the 18th oil circuit with the oil return general pipeline, and the described 4th changes
It is connected to the P mouth of valve by the 19th oil circuit with the oil inlet general pipeline；
On the one hand first hydraulic fluid port of the third transverse shifting oil cylinder passes through the first of the 20th oil circuit and the 8th reversal valve
Hydraulic fluid port connection, the first hydraulic fluid port of the third transverse shifting oil cylinder on the other hand pass through the 21st oil circuit, the 6th check valve with
The B mouth of 5th reversal valve is connected to；Second hydraulic fluid port of the 8th reversal valve by the 22nd oil circuit, the 5th check valve with
The A mouth of 5th reversal valve is connected to, and the 5th check valve is used in series with the 6th check valve；5th reversal valve
T mouth be connected to the oil return general pipeline by the 20th three oil circuits, the P mouth of the 5th reversal valve pass through the 24th oil circuit and
The oil inlet general pipeline connection；
First hydraulic fluid port of the 4th transverse shifting oil cylinder is changed by the 25th oil circuit, the 7th check valve with the described 6th
It being connected to the A mouth of valve, the 25th oil circuit is by the 26th oil circuit and the 22nd oil communication, and described second
Second hydraulic fluid port of transverse shifting oil cylinder is connect by the 27th oil circuit with the second hydraulic fluid port of the third transverse shifting oil cylinder, institute
The 27th oil circuit is stated to be connected to by the 28th oil circuit, the 8th check valve with the B mouth of the 6th reversal valve；Described 7th is single
It is used in series to valve and the 8th check valve；The T mouth of 6th reversal valve is total by the 29th oil circuit and the oil return
The P mouth of pipe connection, the 6th reversal valve is connected to by the 30th oil circuit with the oil inlet general pipeline；
A third, which is in series with, on oil inlet general pipeline between the 7th oil circuit and the tenth three oil circuits is superimposed pressure reducing valve.
In a preferred embodiment of the utility model, the filter assemblies include the oil-suction oil filter that is applied in combination and
Air cleaner.
In a preferred embodiment of the utility model, the oil suction component includes the gear oil by motor drive
Pump.
In a preferred embodiment of the utility model, first reversal valve, the second reversal valve, third reversal valve,
4th reversal valve, the 5th reversal valve, the 6th reversal valve, the 7th reversal valve and the 8th reversal valve are solenoid valve.
In a preferred embodiment of the utility model, it is all provided on the oil inlet general pipeline, the second oil circuit, the 6th oil circuit
It is equipped with oil pressure gauge.
Due to using technical solution as above, the utility model compared with prior art, is had the advantages that
1. the not direct oil return box of the hydraulic oil that the utility model flows out a transverse shifting oil cylinder, but flow into another
Transverse shifting oil cylinder, because the cylinder diameter of transverse shifting oil cylinder is identical, the flexible length of piston is consistent, thus unconditional realization material
Clamp paper roll synchronizing moving, then there is no folded paper roll translation when be dropped.
2. there are two clamp arm, each clamp arms all to realize movement, shifting originally by an oil cylinder for a shaftless paper frame
Dynamic speed is all controlled by a speed governing valve, and the utility model all cancels speed governing valve, reduces material cost.
3. the utility model does not depend merely on hydraulic buttery valve to shut oil pressure, superposition pilot operated valve device is also relied on to shut oil pressure, it can
The control of two sections is reached by property.
4. the utility model increases by a pressure reducing valve on the oil inlet general pipeline between elevating ram and transverse shifting oil cylinder, as long as
Clamping force is transferred to an OK range, i.e., can clamp and not press from both sides bad paper tube core.
5. the utility model transfers to ground by adding pressure reducing valve, paper roll on the decline oil circuit of elevating ram, even if
Button is put not in time, will not cause stress excessive, and equipment is insured.
Detailed description of the invention
Fig. 1 is the hydraulic control system schematic illustration of the hydraulic support of the utility model.
Specific embodiment
Referring to Fig. 1, the hydraulic control system of hydraulic support shown in figure, including fuel tank 16, filter assemblies, oil suction group
Part, the first elevating ram 1 for driving the first clamp arm, the second elevating ram 1a for driving the second clamp arm, driving first clamp
First transverse shifting oil cylinder 15a of arm transverse shifting and the second transverse shifting oil cylinder 15b, the second clamp arm transverse shifting is driven
Third transverse shifting oil cylinder 15c and third transverse shifting oil cylinder 15, the first reversal valve 11, the second reversal valve 11a, third reversal valve
13, the 5th reversal valve 13b of the 4th reversal valve 13a, the 6th reversal valve 13c, the 7th reversal valve 14 and the 8th reversal valve 14a.
Filter assemblies include the oil-suction oil filter 4 and air cleaner 5 being applied in combination, the entrance and oil of oil-suction oil filter 4
Case 16 connects.Oil suction component includes the gear oil pump 2 driven by motor 3, entrance and the oil-suction oil filter 4 of gear oil pump 2
Outlet connection.The outlet of gear oil pump 2 is connected to oil inlet general pipeline 17.Fuel tank 16 is also connected to oil return general pipeline 18.
First hydraulic fluid port of the first elevating ram 1 is connected to oil inlet general pipeline 17 and is superimposed by the first oil circuit 19, first to section
Stream valve 9, first is superimposed liquid control valve 10 and is connected to the B mouth of the first reversal valve 11, and the second hydraulic fluid port of the first elevating ram 1 passes through the
Two oil circuits 20, first are superimposed to throttle valve 9 to be connected to the A mouth of the first reversal valve 11, and the T mouth of the first reversal valve 11 passes through third oil
Road 21 is connected to oil return general pipeline 18, and the P mouth of the first reversal valve 11 is connected to by the 4th oil circuit 22 with oil inlet general pipeline 17, the first oil circuit
It is connected with one first between 20 and third oil circuit 21 and is superimposed pressure reducing valve 8, i.e., adds decompression on the decline oil circuit of elevating ram 1
Valve, paper roll transfer to ground, even if button is put not in time, will not cause stress excessive, equipment is insured.In third
An overflow valve 7 is connected between oil circuit 21 and the 4th oil circuit 22.
The first hydraulic fluid port of second elevating ram 1a is superimposed by the 5th oil circuit 23, second to throttle valve 9a, the second superposition liquid
Control valve 10a is connected to the B mouth of the second reversal valve 11a, and the second hydraulic fluid port of the second elevating ram 1a passes through the 6th oil circuit 24, second
It is superimposed to throttle valve 9a and is connected to the A mouth of the second reversal valve 11a, the T mouth of the second reversal valve 11a passes through the 7th oil circuit 25 and oil return
General pipeline 18 is connected to, and the P mouth of the second reversal valve 11a is connected to by the 8th oil circuit 26 with oil inlet general pipeline 17, the 5th oil circuit 23 and the 7th
One second superposition pressure reducing valve 8a is connected between oil circuit 25., i.e., pressure reducing valve, paper roll are added on the decline oil circuit of elevating ram 1a
Ground is transferred to, even if button is put not in time, will not cause stress excessive, equipment is insured.
On the one hand the first hydraulic fluid port of first transverse shifting oil cylinder 15a passes through the first of the 9th oil circuit 27 and the 7th reversal valve 14
Hydraulic fluid port connection, the first hydraulic fluid port of the first transverse shifting oil cylinder 15a on the other hand pass through the tenth oil circuit 28, second one-way valve 29b with
The B mouth of third reversal valve 13 is connected to；Second hydraulic fluid port of the 7th reversal valve 14 by the 11st oil circuit 30, the first check valve 29a with
The A mouth of third reversal valve 14 is connected to, and the first check valve 29a and second one-way valve 29b is used in series；The T mouth of third reversal valve 13
It is connected to by the 12nd oil circuit 31 with oil return general pipeline 18, the P mouth of third reversal valve 13 passes through the tenth three oil circuits 32 and oil inlet general pipeline
17 connections.
The first hydraulic fluid port of second transverse shifting oil cylinder 15b passes through the 14th oil circuit 33, the commutation of third check valve 29c and the 4th
The A mouth of valve 13a is connected to, and the 14th oil circuit 33 is connected to by the 15th oil circuit 34 with the 11st oil circuit 30, the second transverse shifting oil
The second hydraulic fluid port of cylinder 16b is connect by the 16th oil circuit 35 with the second hydraulic fluid port of the first transverse shifting oil cylinder 15a, the 16th oil circuit
35 are connected to by the 17th oil circuit 36, the 4th check valve 29d with the B mouth of the 4th reversal valve 13a；Third check valve 29c and the 4th
Check valve 29d is used in series；The T mouth of 4th reversal valve 13a is connected to by the 18th oil circuit 37 with oil return general pipeline 18, the 4th commutation
The P mouth of valve 13a is connected to by the 19th oil circuit 38 with oil inlet general pipeline 17.Due to the 14th oil circuit 33 by the 15th oil circuit 34 with
Second hydraulic fluid port of the connection of the 11st oil circuit 30, the second transverse shifting oil cylinder 16b passes through the 16th oil circuit 35 and the first transverse shifting
The second hydraulic fluid port of oil cylinder 15a connects, the not direct oil return box 16 of hydraulic oil of such transverse shifting oil cylinder 15a or 15b outflow, but
Another transverse shifting oil cylinder 15b or 15a are flowed into, because the cylinder diameter of transverse shifting oil cylinder 15a, 15b are identical, the flexible length of piston
Unanimously, thus it is unconditional realize the tight paper roll of feed collet synchronizing moving, then there is no folded paper roll translation when be dropped.
On the one hand the first hydraulic fluid port of third transverse shifting oil cylinder 15c passes through the 20th oil circuit 39 and the 8th reversal valve 14a's
The connection of first hydraulic fluid port, on the other hand the first hydraulic fluid port of third transverse shifting oil cylinder 15c passes through the 21st oil circuit the 40, the 6th unidirectional
Valve 29f is connected to the B mouth of the 5th reversal valve 13b；The second hydraulic fluid port of 8th reversal valve 14a passes through the 22nd oil circuit the 41, the 5th
Check valve 29e is connected to the A mouth of the 5th reversal valve 13b, and the 5th check valve 29e is used in series with the 6th check valve 29f；The
The T mouth of five reversal valve 13b is connected to by the 20th three oil circuits 42 with oil return general pipeline 17, and the P mouth of the 5th reversal valve 13b passes through second
14 oil circuits 43 are connected to oil inlet general pipeline 17.
First hydraulic fluid port of the 4th transverse shifting oil cylinder 15 is changed by the 25th oil circuit 44, the 7th check valve 29g with the 6th
It is connected to the A mouth of valve 13c, the 25th oil circuit 44 is connected to by the 26th oil circuit 45 with the 22nd oil circuit 35, and second is horizontal
It is connect to the second hydraulic fluid port of Shift cylinder 15 by the 27th oil circuit 46 with the second hydraulic fluid port of third transverse shifting oil cylinder 15c,
27th oil circuit 46 is connected to by the 28th oil circuit 47, the 8th check valve 29h with the B mouth of the 6th reversal valve 13c；7th is single
It is used in series to valve 29g and the 8th check valve 29h；The T mouth of 6th reversal valve 13c passes through the 29th oil circuit 48 and oil return general pipeline
The P mouth of 18 connections, the 6th reversal valve 13c is connected to by the 30th oil circuit 49 with oil inlet general pipeline 17；Due to the 25th oil circuit 44
It is connected to by the 26th oil circuit 45 with the 22nd oil circuit 41, the second hydraulic fluid port of the second transverse shifting oil cylinder 15 passes through the 20th
Seven oil circuits 46 are connect with the second hydraulic fluid port of third transverse shifting oil cylinder 15c, such transverse shifting oil cylinder 15 or 15c outflow it is hydraulic
The not direct oil return box 16 of oil, but another transverse shifting oil cylinder 15 or 15c are flowed into, because of transverse shifting oil cylinder 15, the cylinder diameter of 15c
Identical, the flexible length of piston is consistent, thus the unconditional synchronizing moving for realizing the tight paper roll of feed collet, then there is no folded
Paper roll is dropped in translation.
A third, which is in series with, on oil inlet general pipeline 17 between the 7th oil circuit 25 and the tenth three oil circuits 32 is superimposed pressure reducing valve 12,
Increase by a pressure reducing valve on elevating ram 1,1a and transverse shifting oil cylinder 15, the oil inlet general pipeline 17 between 15a, 15b, 15c, only
Clamping force is transferred to an OK range, i.e., can clamp and not press from both sides bad paper tube core.
Above-mentioned first reversal valve 11, the second reversal valve 11a, third reversal valve 13, the 4th reversal valve 13a, the 5th reversal valve
13b, the 6th reversal valve 13c, the 7th reversal valve 14 and the 8th reversal valve 14a are solenoid valve.
Oil pressure gauge 6,6a, 6b, 6c are provided on oil inlet general pipeline 17, the second oil circuit 20, the 6th oil circuit 24.
Illustrate elevating ram 1,1a, the transverse shifting oil cylinder 15a, 15b, 15c, 15 in the utility model with table 1 below
And the movement of each reversal valve.
Table 1
Claims (5)
1. the hydraulic control system of hydraulic support, including fuel tank, filter assemblies, oil suction component, drive the first clamp arm first
Elevating ram, the second elevating ram for driving the second clamp arm, the first transverse shifting oil for driving the first clamp arm transverse shifting
Cylinder and the second transverse shifting oil cylinder, the third transverse shifting oil cylinder of the second clamp arm transverse shifting of driving and the 4th transverse shifting oil
Cylinder, the first reversal valve, the second reversal valve, third reversal valve, the 4th reversal valve, the 5th reversal valve, the 6th reversal valve, the 7th commutation
The entrance of valve and the 8th reversal valve, the oil suction component is connect by filter assemblies with the fuel tank, and the oil suction component goes out
Mouth is connect with oil inlet general pipeline, and the fuel tank is also connect with oil return general pipeline, which is characterized in that
First hydraulic fluid port of first elevating ram is connected to and is passed through with the oil inlet general pipeline the first oil circuit, first is superimposed to throttling
Valve, the first superposition liquid control valve are connected to the B of the first reversal valve mouth, and the second hydraulic fluid port of first elevating ram passes through the second oil
Road, first are superimposed to throttle valve to be connected to the A of the first reversal valve mouth, and the T mouth of first reversal valve passes through third oil circuit and institute
Oil return general pipeline connection is stated, the P mouth of first reversal valve is connected to by the 4th oil circuit with the oil inlet general pipeline, first oil circuit
It is connected with one first between the third oil circuit and is superimposed pressure reducing valve, is connected between the third oil circuit and the 4th oil circuit
There is an overflow valve；First hydraulic fluid port of second elevating ram is superimposed by the 5th oil circuit, second to throttle valve, the second superposition liquid
Control valve is connected to the B of the second reversal valve mouth, the second hydraulic fluid port of second elevating ram by the 6th oil circuit, second be superimposed to
Throttle valve is connected to the A of the second reversal valve mouth, and the T mouth of second reversal valve is connected by the 7th oil circuit and the oil return general pipeline
Logical, the P mouth of second reversal valve is connected to by the 8th oil circuit with the oil inlet general pipeline, the 5th oil circuit and the 7th oil
One second superposition pressure reducing valve is connected between road；
On the one hand first hydraulic fluid port of the first transverse shifting oil cylinder passes through the 9th oil circuit and the first hydraulic fluid port of the 7th reversal valve connects
It connects, on the other hand the first hydraulic fluid port of the first transverse shifting oil cylinder passes through the tenth oil circuit, second one-way valve and the third and changes
It is connected to the B mouth of valve；Second hydraulic fluid port of the 7th reversal valve is commutated by the 11st oil circuit, the first check valve and the third
The A mouth of valve is connected to, and first check valve is used in series with the second one-way valve；The T mouth of the third reversal valve passes through the
12 oil circuits are connected to the oil return general pipeline, and the P mouth of the third reversal valve is connected by the tenth three oil circuits and the oil inlet general pipeline
It is logical；
First hydraulic fluid port of the second transverse shifting oil cylinder passes through the 14th oil circuit, third check valve and the 4th reversal valve
A mouthfuls of connections, the 14th oil circuit pass through the 15th oil circuit and the 11st oil communication, the second transverse shifting oil cylinder
The second hydraulic fluid port connect with the second hydraulic fluid port of the first transverse shifting oil cylinder by the 16th oil circuit, the 16th oil circuit leads to
Cross the 17th oil circuit, the 4th check valve is connected to the B mouth of the 4th reversal valve；The third check valve is unidirectional with the described 4th
Valve is used in series；The T mouth of 4th reversal valve is connected to by the 18th oil circuit with the oil return general pipeline, the 4th reversal valve
P mouth be connected to the oil inlet general pipeline by the 19th oil circuit；
On the one hand first hydraulic fluid port of the third transverse shifting oil cylinder passes through the first hydraulic fluid port of the 20th oil circuit and the 8th reversal valve
Connection, the first hydraulic fluid port of the third transverse shifting oil cylinder on the other hand pass through the 21st oil circuit, the 6th check valve with it is described
The B mouth of 5th reversal valve is connected to；Second hydraulic fluid port of the 8th reversal valve by the 22nd oil circuit, the 5th check valve with it is described
The A mouth of 5th reversal valve is connected to, and the 5th check valve is used in series with the 6th check valve；The T of 5th reversal valve
Mouth is connected to by the 20th three oil circuits with the oil return general pipeline, and the P mouth of the 5th reversal valve passes through the 24th oil circuit and institute
State oil inlet general pipeline connection；
First hydraulic fluid port of the 4th transverse shifting oil cylinder passes through the 25th oil circuit, the 7th check valve and the 6th reversal valve
The connection of A mouth, the 25th oil circuit is by the 26th oil circuit and the 22nd oil communication, and described second laterally
Second hydraulic fluid port of Shift cylinder is connect by the 27th oil circuit with the second hydraulic fluid port of the third transverse shifting oil cylinder, and described the
27 oil circuits are connected to by the 28th oil circuit, the 8th check valve with the B mouth of the 6th reversal valve；7th check valve
It is used in series with the 8th check valve；The T mouth of 6th reversal valve is connected by the 29th oil circuit and the oil return general pipeline
Logical, the P mouth of the 6th reversal valve is connected to by the 30th oil circuit with the oil inlet general pipeline；
A third, which is in series with, on oil inlet general pipeline between the 7th oil circuit and the tenth three oil circuits is superimposed pressure reducing valve.
2. the hydraulic control system of hydraulic support as described in claim 1, which is characterized in that the filter assemblies include combination
The oil-suction oil filter and air cleaner used.
3. the hydraulic control system of hydraulic support as described in claim 1, which is characterized in that the oil suction component includes by electricity
The gear oil pump of motivation driving.
4. the hydraulic control system of hydraulic support as described in claim 1, which is characterized in that first reversal valve, second
Reversal valve, third reversal valve, the 4th reversal valve, the 5th reversal valve, the 6th reversal valve, the 7th reversal valve and the 8th reversal valve are
Solenoid valve.
5. the hydraulic control system of hydraulic support as described in claim 1, which is characterized in that in the oil inlet general pipeline, second
Oil pressure gauge is provided on oil circuit, the 6th oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821518030.1U CN209146025U (en) | 2018-09-17 | 2018-09-17 | The hydraulic control system of hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821518030.1U CN209146025U (en) | 2018-09-17 | 2018-09-17 | The hydraulic control system of hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209146025U true CN209146025U (en) | 2019-07-23 |
Family
ID=67265530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821518030.1U Expired - Fee Related CN209146025U (en) | 2018-09-17 | 2018-09-17 | The hydraulic control system of hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209146025U (en) |
-
2018
- 2018-09-17 CN CN201821518030.1U patent/CN209146025U/en not_active Expired - Fee Related
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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: 20190723 Termination date: 20200917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |