CN204200723U - Mine hoist hydraulic station modified node method - Google Patents
Mine hoist hydraulic station modified node method Download PDFInfo
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- CN204200723U CN204200723U CN201420561898.5U CN201420561898U CN204200723U CN 204200723 U CN204200723 U CN 204200723U CN 201420561898 U CN201420561898 U CN 201420561898U CN 204200723 U CN204200723 U CN 204200723U
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Abstract
The utility model discloses a kind of mine hoist hydraulic station modified node method, belong to and carry hydraulic station; Aim to provide one and can produce two kinds of braking moments, there is the hydraulic station of redundancy backup.It comprises double variable quantity blade pump (4), pressure regulator valve group (3), control valve group (2); Pressure regulator valve group (3) is made up of pressure regulating valve block, one-way valve (3-2), the second relief valve (3-1), control valve group (3) comprises control valve block, the first selector valve (2-1), the second selector valve (2-2), the 4th selector valve (2-6), the 5th selector valve (2-13) and accumulator (2-15), and the low pressure hydraulic fluid port of the second selector valve (2-2) is attempted by between throttle valve (2-4) and the second filler opening (2-8); Double variable quantity blade pump (4), pressure regulator valve group (3) and control valve group (2) are two covers, and the corresponding oil outlet between two control valve groups (2) is by outlet valve group (1) parallel communication.
Description
Technical field
The utility model relates to a kind of hydraulic station, and particularly relating to a kind ofly provides the hydraulic station of adjustable pressure for mine hoisting machine braking device.
Background technique
Mine hoist is the key equipment in mine, is to contact important transport facility that is aboveground and down-hole, is called as mine " throat equipment ".Hydraulic station is safety and the controlling component of mine hoist, and it and disc-brake are combined into the braking system of complete set; Therefore the reliability of hydraulic station directly has influence on the safety in production of mine.
At present, mine hoist hydraulic station adopts metering pump fuel feeding usually, therefore can only provide a kind of braking moment for disc-brake, can not meet the requirement of disc-brake friction speed; There is brake inertia to impact greatly, shake the defects such as violent.For this reason, application number is " 201310580380.6 ", name is called that the application for a patent for invention document of " mine hoist hydraulic station " discloses a kind of hydraulic station, and this patent application is made up of two double variable quantity blade pumps, two cover pressure regulator valve groups and a set of selector valve group and a set of control valve group.Although two kinds of braking moments can be provided, and can effectively overcome brake inertia impact large, shake the defects such as violent; But selector valve group or control valve group are once break down, can not realize switching, necessary maintenance down, affects the normal production order.
Summary of the invention
For the above-mentioned defect existed in prior art, the utility model aims to provide one can produce two kinds of braking moments, has again the mine hoist hydraulic station modified node method of redundancy backup.
To achieve these goals, the utility model by the following technical solutions: comprise double variable quantity blade pump, pressure regulator valve group, control valve group, pressure regulator valve group by being provided with the pressure regulating valve block of high-pressure oil duct with low pressure oil duct, the one-way valve be connected in described low pressure oil duct, the second relief valve of being communicated with described high-pressure oil duct form, two hydraulic fluid ports of double variable quantity blade pump and high-pressure oil duct, low pressure oil duct is corresponding is communicated with, control valve group comprises the control valve block with two filler openings and four oil outlets, be connected on the first selector valve between the 4th oil outlet and the first filler opening and the second selector valve, be attempted by the 4th selector valve between this second selector valve and first filler opening and the 5th selector valve, by the accumulator that throttle valve is communicated with the second filler opening, the low pressure hydraulic fluid port of the second selector valve is attempted by the oil circuit between throttle valve and the second filler opening, two actuator ports of the 4th selector valve and an actuator port of the 5th selector valve and the first oil outlet, second oil outlet and the 3rd oil outlet correspondence are communicated with, double variable quantity blade pump, pressure regulator valve group and control valve group are two covers, each first filler opening, each second filler opening are communicated with corresponding high-pressure oil duct, low pressure oil duct, between each first oil outlet, between each second oil outlet, between each 3rd oil outlet and between each 4th oil outlet respectively by oil pipe by outlet valve group parallel communication.
Oil circuit between each throttle valve with corresponding second selector valve low pressure hydraulic fluid port is connected to the first relief valve; The actuator port of the first selector valve is connected with the 6th selector valve; Oil circuit between throttle valve and the second selector valve low pressure hydraulic fluid port is connected to the 3rd selector valve.
In technique scheme, first selector valve, the second selector valve, the 3rd selector valve, the 5th selector valve and the 6th selector valve are two-position four-way solenoid directional control valve, 4th selector valve is three position four-way directional control valve, and the first relief valve, valve second relief valve are guide's electromagnetic proportion relief valve.
Compared with the prior art, the utility model, owing to have employed technique scheme, prior art basis adds a control valve group and eliminates switching valve block; Therefore two sleeving valve groups can alternation, achieves on-line maintenance; Improve the Safety Redundancy of mine hoist.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is hydraulic schematic diagram of the present utility model.
In figure: outlet valve group 1, control valve group 2, first selector valve 2-1, second selector valve 2-2, first relief valve 2-3, throttle valve 2-4, 3rd selector valve 2-5, 4th selector valve 2-6, first filler opening 2-7, second filler opening 2-8, 3rd oil outlet 2-9, second oil outlet 2-10, first oil outlet 2-11, 4th oil outlet 2-12, 5th selector valve 2-13, 6th selector valve 2-14, accumulator 2-15, pressure regulator valve group 3, second relief valve 3-1, one-way valve 3-2, double variable quantity blade pump 4, oil sump 5, oil pipe 6, valve 7.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in Fig. 1 ~ 2: two double variable quantity blade pumps 4 are communicated with corresponding control valve group 2 separately respectively by pressure regulator valve group 3, each control valve group 2 is communicated with outlet valve group 1 respectively by four oil pipes 6, and four output oil pipes in this outlet valve group are communicated with the resting barrel break of mine hoist, travelling roll brake and hydraulic cylinder for adjusting rope (not shown) respectively; Two double variable quantity blade pump 4, two pressure regulator valve groups 3 and two control valve groups 2 share an oil sump 5.
Wherein, pressure regulator valve group 3 is provided with high-pressure oil duct and the pressure regulating valve block of low pressure oil duct by inside, the one-way valve 3-2 being arranged in described low pressure oil duct, the second relief valve 3-1 of being communicated with described high-pressure oil duct are formed, and the high-pressure oil duct of pressure regulator valve group 3, low pressure oil duct are corresponding with two hydraulic fluid ports of double variable quantity blade pump 4 to be communicated with.The size changing the second relief valve 3-1 control electric current can realize the change of system oil pressure, thus reaches the object of adjustable brake moment size.When controlling electric current and increasing, system oil pressure raises, disc-brake is opened a sluice gate; When controlling electric current reduction, system oil pressure reduces, disc-brake closes a floodgate; When controlling electric current and being decreased to zero, system oil pressure minimum (for residual voltage), lift is in complete braking state.
Control valve group 2 is by the control valve block which is provided with two filler openings and four oil outlets, be connected on the first selector valve 2-1 between the 4th oil outlet 2-12 and the first filler opening 2-7 and the second selector valve 2-2, be attempted by the 4th selector valve 2-6 between this second selector valve and the first filler opening 2-7 and the 5th selector valve 2-13, the accumulator 2-15 be communicated with the second filler opening 2-8 by throttle valve 2-4 is formed, the low pressure hydraulic fluid port (T mouth) of the second selector valve 2-2 is attempted by the oil circuit between throttle valve 2-4 and the second filler opening 2-8, two actuator port (A mouths of the 4th selector valve 2-6, B mouth) and an actuator port (B mouth) and the first oil outlet 2-11 of the 5th selector valve 2-13, second oil outlet 2-10 and the 3rd oil outlet 2-9 correspondence is communicated with.Each first filler opening 2-7, each second filler opening 2-8 are communicated with corresponding high-pressure oil duct, low pressure oil duct, export respectively between each first oil outlet 2-11, between each second oil outlet 2-10, between each 3rd oil outlet 2-9 and between each 4th oil outlet 2-12 respectively by oil pipe 6 by after outlet valve group 1 parallel connection.Throttle valve 2-4 slows down the effect to travelling drum brake inertia impact when can play emergency braking, the opening degree changing this throttle valve can make system pressure value be stabilized in setting range.First relief valve 2-3 mainly plays the effect of protection accumulator 2-15, the first selector valve 2-1 and the second selector valve 2-2.
In order to protection accumulator 2-15, the first selector valve 2-1 and the second selector valve 2-2, the oil circuit between each throttle valve 2-4 with corresponding second selector valve 2-2 low pressure hydraulic fluid port (T mouth) is connected to the first relief valve 2-3.
In order to improve Security, the actuator port (A mouth) of the first selector valve 2-1 is connected with the 6th selector valve 2-14; For the ease of energy device 2-15 pressure release, the oil circuit between throttle valve 2-4 and the second selector valve 2-2 low pressure hydraulic fluid port (T mouth) is connected to the 3rd selector valve 2-5.
For the ease of controlling, between outlet valve group 1 and each oil pipe 6, be connected to valve 7.
Working principle: when normally working, the 5th selector valve 2-13, the first selector valve 2-1, the second selector valve 2-2 obtain electric and are in right position, and the high pressure oil of double variable quantity blade pump 4 enters after control valve group 2 through high-pressure oil duct; One tunnel enters outlet valve group 1 respectively by the 5th selector valve 2-13, the 4th selector valve 2-6 and flows to described dead block break and hydraulic cylinder for adjusting rope, the travelling drum break described in another road second selector valve 2-2, the first selector valve 2-1 enter outlet valve group 1 and flow to; When the control electric current of the second relief valve 3-1 is decreased to zero, system oil pressure minimum (for residual voltage), lift is in complete braking state.Suddenly have a power failure if occur, the necessary emergency braking of lift; Now duplex variable capacity vane pump 4 quits work, second relief valve 3-1, the 5th selector valve 2-13, the second selector valve 2-2 dead electricity, 5th selector valve 2-13 and the second selector valve 2-2 is all in illustrated left position, the oil pressure pressure release at once of dead block break is zero, and this dead block break is in braking state; Accumulator 2-15 is by the second selector valve 2-2, the first selector valve 2-1 to travelling roll brake repairing, and the oil pressure of this travelling roll brake reduces to the force value of the first relief valve 2-3 setting, thus realizes first order braking.The first selector valve 2-1 power-off after pressurize time delay a period of time and be in illustrated left position, so the pressure release that travelling roll brake oil pressure falls is zero, realizes braking completely; Meanwhile, the 3rd selector valve 2-5 energising is in right position, and accumulator 2-15 is by the 3rd selector valve pressure release.
When a duplex Variable quantity vane pump 4 or control valve group 2 break down, only namely the valve 7 that the valve 7 of this cover system is closed, open another set of system need be can switch to other set of system and continue fuel feeding, thus realize Safety Redundancy.
Claims (5)
1. a mine hoist hydraulic station modified node method, comprises double variable quantity blade pump (4), pressure regulator valve group (3), control valve group (2), pressure regulator valve group (3) by being provided with the pressure regulating valve block of high-pressure oil duct with low pressure oil duct, the one-way valve (3-2) be connected in described low pressure oil duct, the second relief valve (3-1) of being communicated with described high-pressure oil duct form, two hydraulic fluid ports of double variable quantity blade pump (4) and high-pressure oil duct, low pressure oil duct is corresponding is communicated with, it is characterized in that: control valve group (2) comprises the control valve block with two filler openings and four oil outlets, be connected on the first selector valve (2-1) between the 4th oil outlet (2-12) and the first filler opening (2-7) and the second selector valve (2-2), be attempted by the 4th selector valve (2-6) between this second selector valve and the first filler opening (2-7) and the 5th selector valve (2-13), by the accumulator (2-15) that throttle valve (2-4) is communicated with the second filler opening (2-8), the low pressure hydraulic fluid port of the second selector valve (2-2) is attempted by the oil circuit between throttle valve (2-4) and the second filler opening (2-8), two actuator ports of the 4th selector valve (2-6) and an actuator port of the 5th selector valve (2-13) and the first oil outlet (2-11), second oil outlet (2-10) and the 3rd oil outlet (2-9) correspondence are communicated with, double variable quantity blade pump (4), pressure regulator valve group (3) and control valve group (2) are two covers, each first filler opening (2-7), each second filler opening (2-8) are communicated with corresponding high-pressure oil duct, low pressure oil duct, between each first oil outlet (2-11), between each second oil outlet (2-10), between each 3rd oil outlet (2-9) and between each 4th oil outlet (2-12) respectively by oil pipe (6) by outlet valve group (1) parallel communication.
2. mine hoist hydraulic station modified node method according to claim 1, is characterized in that: the oil circuit between each throttle valve (2-4) with corresponding second selector valve (2-2) low pressure hydraulic fluid port is connected to the first relief valve (2-3).
3. mine hoist hydraulic station modified node method according to claim 1 and 2, is characterized in that: the actuator port of the first selector valve (2-1) is connected with the 6th selector valve (2-14).
4. mine hoist hydraulic station modified node method according to claim 1 and 2, is characterized in that: the oil circuit between throttle valve (2-4) and the second selector valve (2-2) low pressure hydraulic fluid port is connected to the 3rd selector valve (2-5).
5. mine hoist hydraulic station modified node method according to claim 3, is characterized in that: the oil circuit between throttle valve (2-4) and the second selector valve (2-2) low pressure hydraulic fluid port is connected to the 3rd selector valve (2-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561898.5U CN204200723U (en) | 2014-09-28 | 2014-09-28 | Mine hoist hydraulic station modified node method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561898.5U CN204200723U (en) | 2014-09-28 | 2014-09-28 | Mine hoist hydraulic station modified node method |
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| Publication Number | Publication Date |
|---|---|
| CN204200723U true CN204200723U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420561898.5U Expired - Fee Related CN204200723U (en) | 2014-09-28 | 2014-09-28 | Mine hoist hydraulic station modified node method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747541A (en) * | 2015-03-24 | 2015-07-01 | 上海大学 | Hydraulic power station of grouting pump |
| CN106321530A (en) * | 2015-06-19 | 2017-01-11 | 北京强度环境研究所 | Graded loading low-overshoot braking recovery system and recovery method thereof |
| CN108180187A (en) * | 2018-01-09 | 2018-06-19 | 徐州大恒测控技术有限公司 | Safety arrestment connection in series-parallel redundancy two-stage brake hydraulic station and its control method |
| CN108533558A (en) * | 2018-06-29 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of wind turbine hydraulic station double overflow valve block transformation device |
-
2014
- 2014-09-28 CN CN201420561898.5U patent/CN204200723U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747541A (en) * | 2015-03-24 | 2015-07-01 | 上海大学 | Hydraulic power station of grouting pump |
| CN106321530A (en) * | 2015-06-19 | 2017-01-11 | 北京强度环境研究所 | Graded loading low-overshoot braking recovery system and recovery method thereof |
| CN106321530B (en) * | 2015-06-19 | 2018-03-16 | 北京强度环境研究所 | The low overshoot brake recovery system and its recovery method of a kind of hierarchical loading |
| CN108180187A (en) * | 2018-01-09 | 2018-06-19 | 徐州大恒测控技术有限公司 | Safety arrestment connection in series-parallel redundancy two-stage brake hydraulic station and its control method |
| CN108533558A (en) * | 2018-06-29 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of wind turbine hydraulic station double overflow valve block transformation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20150928 |
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| EXPY | Termination of patent right or utility model |