CN104196927A - Control device for disk brake of downward-conveying belt conveyor - Google Patents
Control device for disk brake of downward-conveying belt conveyor Download PDFInfo
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- CN104196927A CN104196927A CN201410387408.9A CN201410387408A CN104196927A CN 104196927 A CN104196927 A CN 104196927A CN 201410387408 A CN201410387408 A CN 201410387408A CN 104196927 A CN104196927 A CN 104196927A
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- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims description 17
- 239000002828 fuel tank Substances 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 54
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
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Abstract
The invention discloses a control device for a disk brake of a downward-conveying belt conveyor. The control device comprises an oil tank (1), a coarse oil filter (2), a hydraulic pump (3), a motor (4), a fine oil filter (5), a check valve (6), an electric-hydraulic proportional overflow valve (7), a liquid level and liquid temperature meter (8), a hand-operated directional valve (9), a first electromagnetic directional valve (10), a second electromagnetic directional valve (15), a third electromagnetic directional valve (16), a fourth electromagnetic directional valve (17), a speed regulating valve (11), a first overflow valve (12), a second overflow valve (13), a pressure transmitter (14), a pressure meter (18) and an energy accumulator (19). Through the control device, proportional regulation of the braking torque is achieved, the working modes of an intelligent regulation hydraulic system under the conditions of normal start, normal braking, emergency braking and sudden power failure of the system can be differentiated, so that the hydraulic system can keep a reasonable pressure value no matter which state the system is in, the braking effect is better, and energy is saved.
Description
Technical field
The present invention relates to a kind of Disc Brakes of Downward Belt Conveyor control gear, belong to Belt Conveyors field.
Background technique
The use of long haul distance, large conveying quantity, high angle downward running belt conveyor, can reduce exploiting field haulage drift engineering work load greatly, and reduce capital cost and shorten construction period, be a kind of Belt Conveyors with better development prospect.But because belt speed is high, the inertia of movable part and rotating part is very large, its sliding force is also very large, often occurs skidding, rolling the accidents such as material, driving in production, and therefore the key technology of downward belt conveyor is braking.
Disk type braker be downward belt conveyor the most frequently used mode of braking, by brake head, brake disc, hydraulic station, standing forms by electric control box and hydraulic control system, there is braking moment large, braking force is adjustable, be active in one's movements, perfect heat-dissipating, safe and reliable, the advantages such as operation and maintenance convenience.
At present hydraulic system has adopted electro-hydraulic proportional pressure control mostly, has realized stepless voltage regulation, make to boost, step-down process steadily, rapidly, improved the performance of system.But, in prior art, oil hydraulic pump motor still adopts the method for working long hours, at lower Belt Conveyors after normal operating condition break declutches, oil hydraulic pump motor is still in operating condition, to keep break all the time in the state of declutching, so both waste electric energy, made again hydraulic oil heating, increased the unstability of system.
Summary of the invention
The object of the present invention is to provide a kind of Disc Brakes of Downward Belt Conveyor control gear, can be according to the start and stop of conveyor working order intelligent control oil hydraulic pump motor, ratio regulates pressure, thereby has saved the energy, avoid the unnecessary heating of hydraulic oil, increased the stability of system.
For achieving the above object, a kind of Disc Brakes of Downward Belt Conveyor control gear of the present invention, comprises fuel tank, coarse oil filter, oil hydraulic pump, motor, smart oil purifier, one-way valve, electricity liquid ratio relief valve, liquid level liquid thermometer, solenoid directional control valve I, solenoid directional control valve II, solenoid directional control valve III, solenoid directional control valve IV, series flow control valve, relief valve I, relief valve II, pressure transmitter, pressure gauge, accumulator, motor is connected with oil hydraulic pump, oil hydraulic pump filler opening is connected with the oil outlet of coarse oil filter, the filler opening of coarse oil filter is connected with fuel tank, oil hydraulic pump oil outlet is connected with the filler opening of smart oil purifier, the oil outlet of essence oil purifier is connected with one-way valve, one-way valve is connected with the pressure oil entrance of solenoid directional control valve I and the pressure oil entrance of electricity liquid ratio relief valve respectively, the oil outlet of electricity liquid ratio relief valve is connected with fuel tank, the outlet of solenoid directional control valve I respectively with solenoid directional control valve II, pressure transmitter, relief valve II, solenoid directional control valve III, series flow control valve, relief valve I connects, the outlet of solenoid directional control valve III respectively with pressure gauge, accumulator, solenoid directional control valve IV connects, series flow control valve, relief valve I, relief valve II, the oil outlet of solenoid directional control valve IV is connected with fuel tank, accumulator is delivered to disk type braker by solenoid directional control valve II by pressure oil.
Compared with prior art, the present invention regulates by the ratio of braking moment, can distinguish the mode of operation of the situation regulator solution pressing system of normal starting, normal brake application, emergency braking and System Sudden power down, make conveyor no matter for which kind of state, hydraulic system remains rational force value, braking effect is better, has saved the energy.System architecture is simple, convenient operating maintenance, and hydraulic system adopts the explosion-proof electrohydraulic proportion technology in double loop, debugging, easy for installation, functional reliability is high.
Brief description of the drawings
Fig. 1 is control system theory diagram of the present invention;
Fig. 2 is hydraulic principle figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Disk Brake principle as shown in Figure 1, is being set reference speed V
0condition under, in the time that downward belt conveyor speed is v, through velocity feedback circuits and reference speed V
0relatively, comparative result is used for controlling electricity liquid ratio relief valve 7, and electricity liquid ratio relief valve 7 is controlled oil hydraulic circuit pressure, regulates disc type brake braking force, thereby controls downward belt conveyor speed, forms the degeneration factor of a closed loop.
As shown in Figure 2, a kind of Disc Brakes of Downward Belt Conveyor control gear, comprises fuel tank 1, coarse oil filter 2, oil hydraulic pump 3, motor 4, smart oil purifier 5, one-way valve 6, electricity liquid ratio relief valve 7, liquid level liquid thermometer 8, solenoid directional control valve I 10, solenoid directional control valve II 15, solenoid directional control valve III 16, solenoid directional control valve IV 17, series flow control valve 11, relief valve I 12, relief valve II 13, pressure transmitter 14, pressure gauge 18 and accumulator 19, described motor 4 is connected with oil hydraulic pump 3, oil hydraulic pump 3 filler openings are connected with the oil outlet of coarse oil filter 2, the filler opening of coarse oil filter 2 is connected with fuel tank 1, oil hydraulic pump 3 oil outlets are connected with the filler opening of smart oil purifier 5, the oil outlet of essence oil purifier 5 is connected with one-way valve 6, the pressure oil entrance of described one-way valve 6 difference solenoid directional control valve I 10 and the pressure oil entrance of electricity liquid ratio relief valve 7 are connected, the oil outlet of electricity liquid ratio relief valve 7 is connected with fuel tank 1, the outlet of solenoid directional control valve I 10 respectively with solenoid directional control valve II 15, pressure transmitter 14, relief valve II 13, solenoid directional control valve III 16, series flow control valve 11, relief valve I 12 connects, the outlet of solenoid directional control valve III 16 respectively with pressure gauge 18, accumulator 19, solenoid directional control valve IV 17 connects, series flow control valve 11, relief valve I 12, relief valve II 13, the oil outlet of solenoid directional control valve IV 17 is connected with fuel tank 1, accumulator 19 is delivered to disk type braker by solenoid directional control valve II 15 by pressure oil.
Disk type braker is Normally closed type, and dish spring brake application, hydraulic pressure declutch.Braking moment is by brake shoe and brake disc friction and produce, and therefore regulates brake shoe can change braking moment to the positive pressure of brake disc.And the size of the positive pressure of break depends on the acting in conjunction result of oil pressure and dish spring, change the size of oil pressure with regard to adjustable braking moment.When equipment is normally worked, oil pressure reaches maximum value, and now positive pressure is 0, has the gap of 1～1.5mm between brake shoe and brake disc, and break is in the state of declutching.In the time that equipment need be braked, according to operating mode, electrohydraulic control system will automatically be sent instruction by preset program and reduce oil pressure to reach brake request.
The working principle of hydraulic system is:
(1) normal starting
First press accumulator 19 topping up buttons, the electromagnet of solenoid directional control valve 10,15 obtains the electric left position that works in, electricity liquid ratio relief valve 7 electric currents increase gradually, system is to accumulator 19 topping ups, in the time that pressure transmitter 14 detects that oil pressure reaches 9MPa, solenoid directional control valve 16 obtains the electric left position that works in, and accumulator topping up completes, and rapidly oil pressure is down to subsequently to residual voltage P
c.
Press starting button, solenoid directional control valve 10,16 obtains the electric left position that works in, and solenoid directional control valve 15 dead electricity work in right position, and system oil pressure linearity is risen to maximum service pressure P fast
max, this hour indicator brake clearance reaches 1.5mm.
(2) normal brake application and emergency braking
No matter be normal brake application or emergency braking, solenoid directional control valve 10,16 all works in left position, and solenoid directional control valve 15 works in right position, the controlled braking of system.After having braked, solenoid directional control valve 17 obtains the electric left position that works in, the quick oil sump tank of fluid in accumulator, and energy storage pressure is down to inflation pressure P
0, after so just avoiding stopping, downward belt conveyor still has a power failure suddenly in the time of case of heavy load, causes downward belt conveyor to glide.
(3) have a power failure suddenly
The cracking pressure of relief valve 12 is set as pasting lock oil pressure P
t.Suddenly while power failure, solenoid directional control valve 10,15,16 all works in right position, fluid in disk type braker oil cylinder is after solenoid directional control valve 15, a part is through solenoid directional control valve 10, relief valve 12 oil sump tanks, another fraction enters in accumulator, and disk type braker just can complete rapidly idle stroke (in 0.3s).Fluid in accumulator slowly discharges through solenoid directional control valve 16,10 and series flow control valve 11, and braking moment increases gradually, thereby makes downward belt conveyor avoid the accidents such as material, tearing tape of rolling that cause because of " bringing to a halt ".
Further, for improving the reliability of system, this device also comprises hand-operated direction valve 9, and described fuel tank 1, coarse oil filter 2, oil hydraulic pump 3, motor 4, smart oil purifier 5, one-way valve 6 and electricity liquid ratio relief valve 7 are two groups, backup each other, by hand-operated direction valve 9 Access Control oil circuits.
Preferably, described electricity liquid ratio relief valve 7 is direct action type electrohydraulic proportional relief valve.
Claims (3)
1. a Disc Brakes of Downward Belt Conveyor control gear, comprise fuel tank (1), coarse oil filter (2), oil hydraulic pump (3), motor (4), essence oil purifier (5), one-way valve (6) and liquid level liquid thermometer (8), described motor (4) is connected with oil hydraulic pump (3), oil hydraulic pump (3) filler opening is connected with the oil outlet of coarse oil filter (2), being connected with fuel tank (1) of coarse oil filter (2) filler opening, oil hydraulic pump (3) oil outlet is connected with smart oil purifier (5) filler opening, the oil outlet of essence oil purifier (5) is connected with one-way valve (6), it is characterized in that, also comprise electricity liquid ratio relief valve (7), solenoid directional control valve I (10), solenoid directional control valve II (15), solenoid directional control valve III (16), solenoid directional control valve IV (17), series flow control valve (11), relief valve I (12), relief valve II (13), pressure transmitter (14), pressure gauge (18), accumulator (19), described one-way valve (6) is connected respectively with the pressure oil entrance of solenoid directional control valve I (10) and the pressure oil entrance of electricity liquid ratio relief valve (7), the oil outlet of electricity liquid ratio relief valve (7) is connected with fuel tank (1), the oil outlet of solenoid directional control valve I (10) respectively with solenoid directional control valve II (15), pressure transmitter (14), relief valve II (13), solenoid directional control valve III (16), series flow control valve (11), relief valve I (12) connects, the oil outlet of solenoid directional control valve III (16) respectively with pressure gauge (18), accumulator (19), solenoid directional control valve IV (17) connects, series flow control valve (11), relief valve I (12), relief valve II (13), the oil outlet of solenoid directional control valve IV (17) is connected with fuel tank (1), accumulator (19) is delivered to disk type braker by solenoid directional control valve II (15) by pressure oil.
2. a kind of Disc Brakes of Downward Belt Conveyor control gear according to claim 1, it is characterized in that, this control gear also comprises hand-operated direction valve (9), described fuel tank (1), coarse oil filter (2), oil hydraulic pump (3), motor (4), smart oil purifier (5), one-way valve (6) and electricity liquid ratio relief valve (7) are two groups, backup each other, by hand-operated direction valve (9) Access Control oil circuit.
3. a kind of downward belt conveyor Disk brake apparatus device control system according to claim 1, is characterized in that, described electricity liquid ratio relief valve (7) is direct action type electrohydraulic proportional relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387408.9A CN104196927B (en) | 2014-08-08 | 2014-08-08 | A kind of Disc Brakes of Downward Belt Conveyor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387408.9A CN104196927B (en) | 2014-08-08 | 2014-08-08 | A kind of Disc Brakes of Downward Belt Conveyor control device |
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| CN104196927A true CN104196927A (en) | 2014-12-10 |
| CN104196927B CN104196927B (en) | 2018-04-27 |
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| CN201410387408.9A Active CN104196927B (en) | 2014-08-08 | 2014-08-08 | A kind of Disc Brakes of Downward Belt Conveyor control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609778A (en) * | 2015-10-23 | 2017-05-03 | 赵慧霞 | Double-power hydraulic system |
| CN108488277A (en) * | 2018-05-29 | 2018-09-04 | 凯盛重工有限公司 | A kind of hydraulic system of mining brake shuttle tram |
| CN108953419A (en) * | 2018-09-25 | 2018-12-07 | 杭叉集团股份有限公司 | A kind of hydraulic brake system |
| CN112576579A (en) * | 2020-12-07 | 2021-03-30 | 山东百海逸机电股份有限公司 | Pressure maintaining type hydraulic control system of disc type braking device |
| CN112697453A (en) * | 2020-12-07 | 2021-04-23 | 山东百海逸机电股份有限公司 | Disc type brake device test bed and test method thereof |
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| CN201864520U (en) * | 2010-07-14 | 2011-06-15 | 湖南金塔机械制造有限公司 | Electric secondary braking hydraulic station of hoister |
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| CN203594717U (en) * | 2013-11-25 | 2014-05-14 | 湘潭市恒欣实业有限公司 | Double-pump driven safety brake hydraulic control system |
| CN204140720U (en) * | 2014-08-08 | 2015-02-04 | 徐州五洋科技股份有限公司 | Disc Brakes of Downward Belt Conveyor control gear |
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2014
- 2014-08-08 CN CN201410387408.9A patent/CN104196927B/en active Active
Patent Citations (7)
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| CN101475130A (en) * | 2009-01-22 | 2009-07-08 | 重庆键英液压机电有限公司 | Hydraulic time-delay double-stage braking hoister hydraulic station |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609778A (en) * | 2015-10-23 | 2017-05-03 | 赵慧霞 | Double-power hydraulic system |
| CN108488277A (en) * | 2018-05-29 | 2018-09-04 | 凯盛重工有限公司 | A kind of hydraulic system of mining brake shuttle tram |
| CN108488277B (en) * | 2018-05-29 | 2024-03-26 | 凯盛重工有限公司 | Hydraulic system of mining braking shuttle car |
| CN108953419A (en) * | 2018-09-25 | 2018-12-07 | 杭叉集团股份有限公司 | A kind of hydraulic brake system |
| CN108953419B (en) * | 2018-09-25 | 2023-12-01 | 杭叉集团股份有限公司 | Hydraulic braking system |
| CN112576579A (en) * | 2020-12-07 | 2021-03-30 | 山东百海逸机电股份有限公司 | Pressure maintaining type hydraulic control system of disc type braking device |
| CN112697453A (en) * | 2020-12-07 | 2021-04-23 | 山东百海逸机电股份有限公司 | Disc type brake device test bed and test method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104196927B (en) | 2018-04-27 |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221000 Xuzhou hi tech Zone, Copper Mt. New District, silver mountain road, East Pearl River Road, Jiangsu Patentee after: JIANGSU WUYANG PARKING INDUSTRY GROUP Co.,Ltd. Address before: 221000 Xuzhou hi tech Zone, Copper Mt. New District, silver mountain road, East Pearl River Road, Jiangsu Patentee before: XUZHOU WUYANG TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A disc brake control device for downward belt conveyor Effective date of registration: 20210426 Granted publication date: 20180427 Pledgee: Xuzhou Huaichang Investment Co.,Ltd. Pledgor: JIANGSU WUYANG PARKING INDUSTRY GROUP Co.,Ltd. Registration number: Y2021320000044 |
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Address after: 221116 Yinshan Road East and Zhujiang Road North, Tongshan new area, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Wuyang Automation Control Technology Co.,Ltd. Country or region after: China Address before: 221000 East Yinshan Road and North the Pearl River Road, Tongshan New District, High tech Zone, Xuzhou City, Jiangsu Province Patentee before: JIANGSU WUYANG PARKING INDUSTRY GROUP Co.,Ltd. Country or region before: China |
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