CN201137501Y - Manual type adjacent chock mutual control hydraulic support control circuit - Google Patents
Manual type adjacent chock mutual control hydraulic support control circuit Download PDFInfo
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- CN201137501Y CN201137501Y CNU2007201025425U CN200720102542U CN201137501Y CN 201137501 Y CN201137501 Y CN 201137501Y CN U2007201025425 U CNU2007201025425 U CN U2007201025425U CN 200720102542 U CN200720102542 U CN 200720102542U CN 201137501 Y CN201137501 Y CN 201137501Y
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- control
- port
- hydraulic
- frame
- way valve
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Abstract
A control circuit of hand-operated type adjacent frame inter-control hydraulic frame relates to the circuit structure of the hydraulic system of coal mine full mechanized face hydraulic frame, wherein the prior hand-operated control of the hydraulic frame adopts independent operation, having low safety, low support circulation speed and high operation control difficulty. The utility model is composed of the control circuits of at least two adjacent hydraulic frames A, B, wherein each control circuit comprises a column working cylinder, a column control valve, a hand operated valve, an alternative one-way valve, an advancing jack and a hydraulic control type two-position three-way valve which is communicated with other hydraulic elements to form three circuits, such as a self frame lifting single motion control circuit, a hydraulic control circuit, an adjacent frame column reduction and motion linkage control circuit. The utility model has the advantages of high production efficiency, simple operation, reliable support and high safety.
Description
Technical field
The utility model relates to a kind of circuit configurations of hydraulic system of coal mine fully-mechanized mining working hydraulic support.
Background technology
In known technology, the hydraulic system of hydraulic support has electrichydraulic control and manually controls two kinds the control of support both at home and abroad.Electrichydraulic control all has the very high hierarchy of skill on operating efficiency and automaticity, yet, because of it costs an arm and a leg, use also less at the colliery system of China.At present, manually control (hand) remains at following major defect: (1) adopts this operation control separately, and safety is relatively poor.The manual control of hydraulic support at present takes place to squeeze the accident of hindering operating personnel easily, especially operates hydraulic support under the girdle environment, the easier generation of casualty accident.(2) supporting circulation rate is slow.Fully-mechanized mining working at ten thousand tons of coals of daily output, the hauling speed of coal-winning machine reaches about 8 meters/minute, the do action that require supporting hydraulic support to fall post, to move frame and setting prop is finished in second at 8-10, existing manual control system will be finished a do action then to be needed more than 12 seconds, top board can not immediate support, the inbreak accident easily takes place, if reduce coal mining speed artificially, then influences the output of mining.(3) operation control difficulty is big.When the bracket support face roof, setting load realizes that by operating personnel's range estimation or with feeling most of support setting loads can not reach requirement, so often occur revealing the top phenomenon, has influenced ordinary production.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, the control circuit of the adjacent frame cross complaint of a kind of hand hydraulic support is provided, can in this setting prop single action of control, controls the hydraulic system circuit that adjacent frame falls post and moves the frame interlock mutually between the promptly adjacent hydraulic support.The control circuit of the adjacent frame cross complaint of this hand hydraulic support has the production efficiency height, and easy and simple to handle, supporting is reliable, blocks up advantages such as having cut off casualty accident.
Task of the present utility model is to adopt following measure to realize:
The control circuit of the adjacent frame cross complaint of a kind of hand hydraulic support, by at least two adjacent hydraulic support A, the control circuit of B is formed, comprise respectively in each control circuit: the column working cylinder, column control valve (comprising hydraulic control one-way valve and safety valve), manual operation valve, replace one way valve and pass jack, it is characterized in that: also be respectively equipped with a hydraulically-controlled type two position three-way valve in described each control circuit, it and other Hydraulic Elements interconnect and form three loops: first loop is this setting prop single action loop of control, second loop is the hydraulic control loop, and tertiary circuit falls post for the adjacent frame of control and moves frame interlock loop.
This setting prop single action loop of described control during as this, is the port A with manual operation valve with the A frame
2Be initial hydraulic fluid port, it and the port J that replaces one way valve
2Interconnect, and the port B of one way valve alternately
1Hydraulic control one-way valve oil-in K with the column control valve
1, K
2Interconnect the hydraulic control one-way valve oil-out K of column control valve
5Hydraulic fluid port Z with the column working cylinder
1Interconnect the hydraulic control one-way valve oil-out K of column control valve
6Hydraulic fluid port Z with the column working cylinder
3Interconnect.
Described hydraulic control loop is the port A with manual operation valve
2Be originating port, it and the port J that replaces one way valve
9Interconnect, alternately the port B of one way valve
5Port Y with the hydraulically-controlled type two position three-way valve
2Interconnect.
The adjacent frame of described control falls post and moves frame interlock loop, when being right adjacent frame with the B frame, is the port S with the hydraulically-controlled type two position three-way valve
2Be originating port, the port Z of it and column working cylinder
6, Z
8, the hydraulic control mouth K of column control valve
11, K
12, the port J of one way valve alternately
11Interconnect, alternately the port B of one way valve
6With the port Q that passes jack
4Interconnect.
The utility model compared with prior art, owing to be provided with a hydraulically-controlled type two position three-way valve in each control circuit, it and other Hydraulic Elements interconnect and form three loops, three loops are all from the main feed liquor P of hydraulic system, in a short period of time, pressure in three loops will be tending towards equal, and at this moment to lead to the pressure of A frame column cavity of resorption be exactly the setting load of A frame supporting roof in first loop; After the B frame moves frame and puts in place, the handgrip of the manual operating valve of A frame is resetted, finished the setting prop single action of a deuterzooid frame and adjacent frame and fallen post and move frame interlock task.With same method of operating, control another adjacent frame finishing the support that moves frame action again as this, so to work continuously, the face roof timbering and move the frame task of finishing the work is fast realized the operation of adjacent frame cross complaint.Therefore, the utlity model has the production efficiency height, easy and simple to handle, supporting is reliable, blocks up advantages such as having cut off casualty accident.
Description of drawings
Fig. 1 is the organigram of the control circuit of the adjacent frame cross complaint of a kind of hand hydraulic support.
The present invention is elaborated by preferred embodiment below in conjunction with accompanying drawing.
The specific embodiment
As shown in Figure 1, the control circuit of adjacent two hydraulic support A framves and B frame hydraulic system, the structure of two stands hydraulic system is identical, be respectively the A frame: by column working cylinder (two column) 19,20, column control valve (hydraulic control one-way valve and safety valve) 15,16, manual operation valve 1,2,3, alternately one way valve 7,8,9 is passed jack 23 and hydraulically-controlled type two position three-way valve 13 compositions; The B frame: by column working cylinder (two column) 21,22, column control valve (hydraulic control one-way valve and safety valve) 17,18, manual operation valve 4,5,6, alternately one way valve 10,11,12 is passed jack 24 and hydraulically-controlled type two position three-way valve 14 compositions.They constitute three loops after interconnecting with the hydraulic circuit connected mode, that is: control this setting prop single action loop, hydraulic control loop and control adjacent frame and fall post and move frame interlock loop.
Now with the A frame as this, the B frame illustrates its structure as the adjacent frame (right adjacent frame) controlled by the A frame, the main feed liquor that the symbol in the loop " P " representative comes from pumping plant, the master that pumping plant is got back in the symbol " T " representative returns liquid.
Annexation in control A frame (this) the setting prop single action loop between each member is: its initial port is the port A of manual operation valve 2
2, this hole and the port J that replaces one way valve 8
2Interconnect, and the port B of one way valve 8 alternately
1Hydraulic control one-way valve oil-in K with column control valve 15,16
1, K
2Interconnect the hydraulic control one-way valve oil-out K of column control valve 15
5Hydraulic fluid port Z with column 19
1Interconnect the hydraulic control one-way valve oil-out K of column control valve 16
6Hydraulic fluid port Z with column 20
3Interconnect.
Annexation in the hydraulic control loop between each member is: still with the port A of manual operation valve 2
2For playing hydraulic fluid port, with it and the port J that replaces one way valve 12
9Interconnect, alternately the port B of one way valve 12
5Port Y with hydraulically-controlled type two position three-way valve 14
2Interconnect.
Control B frame (right adjacent frame) falls post and moves that the annexation between each member is in the loop of frame interlock: its initial port is the port S of hydraulically-controlled type two position three-way valve 14
2, the hydraulic fluid port Z of this port and column 21,22
6, Z
8, the hydraulic control mouth K of column control valve 17,18
11, K
12, the port J of one way valve 10 alternately
11Interconnect, alternately the port B of one way valve 10
6With the port Q that passes jack 24
4Interconnect (shared) with the pushing and sliding of B frame.
If is this with the B frame, the A frame is during as the adjacent frame (left adjacent frame) controlled by the B frame, and its initial port is the port A of manual operation valve 5
5, the loop of its control B frame (this) setting prop single action and hydraulic control loop and control A frame (left adjacent frame) fall frame and move the loop structure that frame links identical with structure noted earlier, promptly are symmetric relation.
Annexation in other the loop between each member is the port A of manual operation valve 1
1With the port J that replaces one way valve 8
1Loop after the connection and the port J that replaces one way valve 9
3Be connected with the left adjacent frame hydraulic system of A frame respectively; The port A of manual operation valve 6
6With the port J that replaces one way valve 11
8Loop after the connection and the port J that replaces one way valve 12
10Be connected with the right adjacent frame hydraulic system of B frame respectively; Support pushes the work forward face drag conveyor (scraper-trough conveyer) for this operation, as with the pushing and sliding of B frame the time, and the port A of manual operation valve 4
4With the port J that replaces one way valve 10
12, pass the port Q of jack 24
3Interconnect; Replace the port B of one way valve 10
6With the port Q that passes jack 24
4Interconnect (to move frame shared with the B frame), during the support pushing and sliding, pass in the chamber, the left and right sides of jack and all enter high pressure liquid, utilize this left and right sides suffered hydraulic coupling of cavity area difference to finish the pushing and sliding action.
The connection of each member in each loop can adopt high-pressure rubber pipe to connect routinely, also several members (as several different valves) can be stitched together, and is with after port is aimed at, directly fixedly connected with bolt with the port that will connect.
Operating principle of the present utility model and excellent characteristics thereof are:
With the A frame is this, and control B frame (right adjacent frame) should be depressed manual operation valve 2 handgrips of A frame when falling post, and at this moment main feed liquor P can be divided into two oil circuits by manual operation valve 2, and first loop trend is
The trend in second loop is A
2→ J
9→ B
5→ Y
2
Because the initial port in two loops all is the port A of manual operation valve 2
2So they are loops of two intercommunications, first loop is by port Z
1, Z
3Enter A frame two column cavity of resorptions, make A frame column setting prop, when between A frame back timber and face roof, the pressure of certain numerical value having been arranged, the pressure in two loops also raises simultaneously, when circuit pressure is raised to the setting value of B frame hydraulically-controlled type two position three-way valve, the another location can be got to this hydraulically-controlled type two position three-way valve in second loop, and main feed liquor P is by the port S of hydraulically-controlled type two position three-way valve
2The time, the trend of tertiary circuit is
This loop is by port Z
6, Z
8Enter B frame column epicoele, by port K
11, K
12Advance the liquid controling cavity of people B frame column control valve (hydraulic control one-way valve), column control valve (hydraulic control one-way valve) is opened, make the epicoele feed liquor of B frame two columns, cavity of resorption returns liquid, finishes the B frame and falls the post action; By port Q
4Entering chamber, a B frame passing jack left side makes the B frame move frame.Because three loops are all from the main feed liquor P of the main feed liquor pressing system of hydraulic system, therefore in a short period of time, the pressure in three loops will be tending towards equal, and at this moment to lead to the pressure of A frame column cavity of resorption be exactly the setting load of A frame supporting roof in first loop; After the B frame moves frame and puts in place, the handgrip of the manual operating valve 2 of A frame is resetted, finished the setting prop single action of a deuterzooid frame and adjacent frame and fallen post and move frame interlock task.With same method of operating, control another adjacent frame finishing the support that moves the frame action again as this, so work continuously, can finish the work fast face roof timbering and move the frame task, enhance productivity, guarantee supporting quality, stifled simultaneously casualty accident of having cut off the operator.
Claims (4)
1, the control circuit of the adjacent frame cross complaint of a kind of hand hydraulic support, by at least two adjacent hydraulic support A, the control circuit of B is formed, comprise respectively in each control circuit: the column working cylinder, the column control valve, manual operation valve, replace one way valve and pass jack, it is characterized in that: also be provided with a hydraulically-controlled type two position three-way valve in described each control circuit, it and other Hydraulic Elements interconnect and form three loops: first loop is this setting prop single action loop of control, second loop is the hydraulic control loop, and tertiary circuit falls post for the adjacent frame of control and moves frame interlock loop.
2, according to the control circuit of the adjacent frame cross complaint of the described hand of claim 1 hydraulic support, it is characterized in that: this setting prop single action loop of described control during as this, is the port A with manual operation valve (2) with the A frame
2Be initial hydraulic fluid port, it and the port J that replaces one way valve (8)
2Interconnect, and the port B of one way valve (8) alternately
1Hydraulic control one-way valve oil-in K with column control valve (15,16)
1, K
2Interconnect the hydraulic control one-way valve oil-out K of column control valve (15)
5Hydraulic fluid port Z with column working cylinder (19)
1Interconnect the hydraulic control one-way valve oil-out K of column control valve (16)
6Hydraulic fluid port Z with column working cylinder (20)
3Interconnect.
3, according to the control circuit of the adjacent frame cross complaint of the described hand of claim 1 hydraulic support, it is characterized in that: described hydraulic control loop is the port A with manual operation valve (2)
2Be originating port, it and the port J that replaces one way valve (12)
9Interconnect, alternately the port B of one way valve (12)
5Port Y with hydraulically-controlled type two position three-way valve (14)
2Interconnect.
4, according to the control circuit of the adjacent frame cross complaint of the described hand of claim 1 hydraulic support, it is characterized in that: the adjacent frame of described control falls post and moves frame interlock loop, when being right adjacent frame with the B frame, is the port S with hydraulically-controlled type two position three-way valve (14)
2Be originating port, the port Z of it and column working cylinder (21,22)
6, Z
8, the hydraulic control mouth K of column control valve (17,18)
11, K
12, the port J of one way valve (10) alternately
11Interconnect, alternately the port B of one way valve (10)
6With the port Q that passes jack (24)
4Interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201025425U CN201137501Y (en) | 2007-09-15 | 2007-09-15 | Manual type adjacent chock mutual control hydraulic support control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201025425U CN201137501Y (en) | 2007-09-15 | 2007-09-15 | Manual type adjacent chock mutual control hydraulic support control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137501Y true CN201137501Y (en) | 2008-10-22 |
Family
ID=40038188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201025425U Expired - Fee Related CN201137501Y (en) | 2007-09-15 | 2007-09-15 | Manual type adjacent chock mutual control hydraulic support control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137501Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713149A (en) * | 2009-07-16 | 2012-10-03 | 迪芬巴赫控制系统股份有限公司 | Hydraulic circuit for longwall mining |
-
2007
- 2007-09-15 CN CNU2007201025425U patent/CN201137501Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713149A (en) * | 2009-07-16 | 2012-10-03 | 迪芬巴赫控制系统股份有限公司 | Hydraulic circuit for longwall mining |
| CN102713149B (en) * | 2009-07-16 | 2015-04-01 | 迪芬巴赫控制系统股份有限公司 | Hydraulic circuit for mining face trestle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20091015 |