CN202628648U - Control valve group system of pumping mechanism of concrete pump for coal mine - Google Patents
Control valve group system of pumping mechanism of concrete pump for coal mine Download PDFInfo
- Publication number
- CN202628648U CN202628648U CN 201220254695 CN201220254695U CN202628648U CN 202628648 U CN202628648 U CN 202628648U CN 201220254695 CN201220254695 CN 201220254695 CN 201220254695 U CN201220254695 U CN 201220254695U CN 202628648 U CN202628648 U CN 202628648U
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- control valve
- pilot operated
- operated directional
- directional control
- oil
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Abstract
The utility model relates to a control valve group system of a pumping mechanism of a concrete pump for a coal mine; the control valve group system comprises a main oil cylinder, a manual unloading multi-way valve, a plurality of hydraulic control reversing valves and a swing arm oil cylinder; the manual unloading multi-way valve comprises two oil inlets, two oil outlets and an oil return port; the manual unloading multi-way valve controls the action of the main oil cylinder and the swing arm oil cylinder through a plurality of hydraulic control reversing valves; according to the control valve group system of the pumping mechanism of the concrete pump for the coal mine, because only one operation handle is adopted, the problem that the normal operation of the pump is affected caused by error action due to the direction problem of the handle is solved when the control valve group system is operated; and hydraulic elements and devices of the whole system are relatively reduced, so that the connection of hydraulic pipelines is reduced, and the layout of the whole system is simple.
Description
Technical field
The utility model relates to a kind of control valve group, and particularly a kind of colliery is with the control valve group system of concrete pump pumping mechanism.
Background technique
It is a kind of technical equipment that designs as long distance pumping concrete under the coal mine that concrete pump is used in the colliery; Its working principle and concrete pump are basic identical, because the requirement of coal mine downhole safety, motor need be used explosion-proof type; Control system also will adopt full hydraulic control system as far as possible; Adopt explosion-proof type control system cost high, volume is big, is not easy to use under the coal mine.
The colliery is a pumping mechanism with the core of concrete pump; The action of executive component master cylinder and swing arm oil cylinder control in its pumping mechanism; The startup of pumping mechanism, the control of positive pump and anti-pump work state all needs the orderly action of a plurality of sliding valve style pilot operated directional control valves to realize, in concrete pump; Control the electric control reversing valve events by start button and PLC and just can realize action simply and easily; And in full hydraulic control system, usually adopting the interlock of a plurality of hand-operated direction valves to control, make complicated operation like this, but also might owing to lever operated direction not to producing misoperation.Therefore whether the rationality of hand-operated direction valve setting directly has influence on whole operation of equipment and makes things convenient for, and whether system's operation is steadily safe and reliable.
The model utility content
The purpose of the utility model is to overcome the deficiency of existing technology and provides a kind of simple in structure, easy to operate, the system's control valve group system of safe and reliable colliery with the concrete pump pumping mechanism that operate steadily.
A kind of colliery is with the control valve group system of concrete pump pumping mechanism; Comprise main oil pump, master cylinder, manual off-load multi-way valve, a plurality of pilot operated directional control valve and swing arm oil cylinder; The pressure oil of said main oil pump is connected with said manual off-load multi-way valve, and said manual off-load multi-way valve is connected with said swing arm oil cylinder with said master cylinder respectively through said a plurality of pilot operated directional control valves.
In the utility model; Said manual off-load multi-way valve comprises two filler openings, two oil outlets and a return opening; Said two filler openings are connected with pressure oil; Said two oil outlets are connected with the control end of first pilot operated directional control valve with the pilot operated directional control valve group respectively, and the filler opening of said first pilot operated directional control valve is connected with oil pump, and oil outlet is connected with the filler opening of said second pilot operated directional control valve; The oil outlet of said second pilot operated directional control valve is connected with the filler opening of said master cylinder; The return opening of said master cylinder is connected with the return opening of said first pilot operated directional control valve through the return opening of said second pilot operated directional control valve, and the return opening of said first pilot operated directional control valve is connected with fuel tank, and the filler opening of said pilot operated directional control valve group is connected with said pressure oil; Oil outlet is connected with a control end of said second pilot operated directional control valve and the filler opening of said swing arm oil cylinder, and the return opening of said swing arm oil cylinder is connected with the return opening of said pilot operated directional control valve group and another control end of said second pilot operated directional control valve.
In the utility model, said pilot operated directional control valve group comprises the 3rd pilot operated directional control valve and the 4th pilot operated directional control valve, and the control end of said the 4th pilot operated directional control valve is connected with the 3rd liquid controlled reversing valve core.
In the utility model, said manual off-load multi-way valve is three six-way valves.
Adopt such scheme, the utility model only replaces three conventional hand-operated direction valves to control with a manual off-load multi-way valve, realizes that a handle just controlled the startup of whole pumping mechanism; The function of positive pump or anti-pump makes that whole equipment is simple to operate clear, convenient and swift; Simultaneously owing to have only an operating grip; Operate and can not cause misoperation because of the problem of handle orientations, influence the normal operation of pump, whole system hydraulic pressure components and parts reduce relatively; Hydraulic tubing connects minimizing, and the feasible system layout of haveing suffered is succinct.
Description of drawings
Fig. 1 is the utility model hydraulic structure schematic representation.
Embodiment
Below in conjunction with accompanying drawing, specify the embodiment of a kind of colliery with the control valve group system of concrete pump pumping mechanism.
Shown in accompanying drawing 1; A kind of colliery is with the control valve group system of concrete pump pumping mechanism; Comprise main oil pump, master cylinder 6, manual off-load multi-way valve 1, a plurality of pilot operated directional control valve and swing arm oil cylinder 5; Said manual off-load multi-way valve 1 comprises 13,14 and return openings 15 of 11,12, two oil outlets of two filler openings; Said two filler openings 11,12 are connected with pressure oil; Said two oil outlets 13,14 are connected with the control end of first pilot operated directional control valve 2 and pilot operated directional control valve group 4 respectively; The filler opening 23 of said first pilot operated directional control valve 2 is connected with oil pump, and oil outlet is connected with the filler opening of said second pilot operated directional control valve 3, and the oil outlet of said second pilot operated directional control valve 3 is connected with the filler opening 61 of said master cylinder 6; The return opening 62 of said master cylinder 6 is connected with the return opening 22 of said first pilot operated directional control valve 2 through the return opening of said second pilot operated directional control valve 3; The return opening of said first pilot operated directional control valve 2 is connected with fuel tank, and the filler opening 45 of said pilot operated directional control valve group 4 is connected with said pressure oil 7, and oil outlet 44 is connected with a control end of said second pilot operated directional control valve 3 and the filler opening 53 of said swing arm oil cylinder 5; The return opening 52 of said swing arm oil cylinder 5 is connected with the return opening 43 of said pilot operated directional control valve group 4 another control end with said second pilot operated directional control valve 3; Said pilot operated directional control valve group 4 comprises the action of the 3rd pilot operated directional control valve 41 and the 4th pilot operated directional control valve 42, the four pilot operated directional control valves 42 control the 3rd liquid selector valve 41 spools, the spool action of pressure signal oil control the 3rd pilot operated directional control valve 41 of drawing after 42 switching-overs of the 4th pilot operated directional control valve.
Manually off-load multi-way valve 1 is three six-way valves, and first pilot operated directional control valve 2 and second pilot operated directional control valve 3 are selector valves of control master cylinder switching-over, and 4 of pilot operated directional control valve groups are the selector valves of control swing arm oil cylinder 5.Manually off-load multi-way valve 1 has two pressure oil imports 7 and 8; Pressure oil import 7 connects the control oil channel of first pilot operated directional control valve 2 and pilot operated directional control valve group 4; Pressure oil import 8 connects main system relief valve control oil channel, and when manual off-load multi-way valve 1 was in meta, pressure oil import 8 control oil were from return opening 9 direct oil sump tanks; Pumping mechanism is in outage state, thereby pilot pressure oil inlet 7 is in off state.Pull manual off-load multi-way valve 1 handle, pressure oil import 8 is in off state, and the pressure oil of pressure oil import 7 gets into oil cylinder through first pilot operated directional control valve 2 and pilot operated directional control valve group 4, and pumping mechanism is started working.Manually off-load multi-way valve 1 spool is in position, a left side, and pressure oil import 7 pressure oils make the spool of first pilot operated directional control valve 2 and pilot operated directional control valve group 4 be in position, a left side, thereby make pumping mechanism be in positive pump work state (feeding process).Otherwise, then be in anti-pump work state.
Claims (4)
1. a colliery is with the control valve group system of concrete pump pumping mechanism; Comprise main oil pump, master cylinder, manual off-load multi-way valve, a plurality of pilot operated directional control valve and swing arm oil cylinder; It is characterized in that: the pressure oil of said main oil pump is connected with said manual off-load multi-way valve, and said manual off-load multi-way valve is connected with said swing arm oil cylinder with said master cylinder respectively through said a plurality of pilot operated directional control valves.
2. colliery according to claim 1 is with the control valve group system of concrete pump pumping mechanism; It is characterized in that: said manual off-load multi-way valve comprises two filler openings, two oil outlets and a return opening; Said two filler openings are connected with pressure oil; Said two oil outlets are connected with the control end of first pilot operated directional control valve with the pilot operated directional control valve group respectively; The filler opening of said first pilot operated directional control valve is connected with oil pump; Oil outlet is connected with the filler opening of said second pilot operated directional control valve, and the oil outlet of said second pilot operated directional control valve is connected with the filler opening of said master cylinder, and the return opening of said master cylinder is connected with the return opening of said first pilot operated directional control valve through the return opening of said second pilot operated directional control valve; The return opening of said first pilot operated directional control valve is connected with fuel tank; The filler opening of said pilot operated directional control valve group is connected with said pressure oil, and oil outlet is connected with a control end of said second pilot operated directional control valve and the filler opening of said swing arm oil cylinder, and the return opening of said swing arm oil cylinder is connected with the return opening of said pilot operated directional control valve group and another control end of said second pilot operated directional control valve.
3. colliery according to claim 2 is with the control valve group system of concrete pump pumping mechanism; It is characterized in that: said pilot operated directional control valve group comprises the 3rd pilot operated directional control valve and the 4th pilot operated directional control valve, and the control end of said the 4th pilot operated directional control valve is connected with the 3rd liquid controlled reversing valve core.
According to claim 1 or 2 or 3 described collieries with the control valve group system of concrete pump pumping mechanism, it is characterized in that: said manual off-load multi-way valve is three six-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254695 CN202628648U (en) | 2012-05-31 | 2012-05-31 | Control valve group system of pumping mechanism of concrete pump for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254695 CN202628648U (en) | 2012-05-31 | 2012-05-31 | Control valve group system of pumping mechanism of concrete pump for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628648U true CN202628648U (en) | 2012-12-26 |
Family
ID=47381853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254695 Expired - Lifetime CN202628648U (en) | 2012-05-31 | 2012-05-31 | Control valve group system of pumping mechanism of concrete pump for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628648U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410799A (en) * | 2013-07-26 | 2013-11-27 | 北汽福田汽车股份有限公司 | Pumping hydraulic system |
| CN103603840A (en) * | 2013-11-26 | 2014-02-26 | 三一汽车制造有限公司 | Integrated hydraulic valve group and hydraulic drive system and concrete pump |
| CN109505827A (en) * | 2018-12-29 | 2019-03-22 | 合肥皖液液压元件有限公司 | A kind of dibit motor starting testing stand |
-
2012
- 2012-05-31 CN CN 201220254695 patent/CN202628648U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410799A (en) * | 2013-07-26 | 2013-11-27 | 北汽福田汽车股份有限公司 | Pumping hydraulic system |
| CN103410799B (en) * | 2013-07-26 | 2015-09-09 | 北汽福田汽车股份有限公司 | Hydraulic system of pump |
| CN103603840A (en) * | 2013-11-26 | 2014-02-26 | 三一汽车制造有限公司 | Integrated hydraulic valve group and hydraulic drive system and concrete pump |
| CN103603840B (en) * | 2013-11-26 | 2016-03-23 | 三一汽车制造有限公司 | Integrated hydraulic valve group and hydraulic driving system and concrete pump |
| CN109505827A (en) * | 2018-12-29 | 2019-03-22 | 合肥皖液液压元件有限公司 | A kind of dibit motor starting testing stand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |