CN102619796A - Synchronous opening/closing driving device for doors of large-sized weighing hopper - Google Patents
Synchronous opening/closing driving device for doors of large-sized weighing hopper Download PDFInfo
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- CN102619796A CN102619796A CN201210094858XA CN201210094858A CN102619796A CN 102619796 A CN102619796 A CN 102619796A CN 201210094858X A CN201210094858X A CN 201210094858XA CN 201210094858 A CN201210094858 A CN 201210094858A CN 102619796 A CN102619796 A CN 102619796A
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Abstract
The invention discloses a synchronous opening/closing driving device for doors of a large-sized weighing hopper. The device mainly comprises a power source, an opening/closing oil cylinder, a synchronous diverter element and a hydraulic control valve. The power source comprises a hydraulic pump and a motor which is connected with the hydraulic pump. The opening/closing oil cylinder comprises a left driving oil cylinder and a right driving oil cylinder, which are arranged on the two sides of a hopper box respectively. The synchronous diverter element comprises a synchronous oil cylinder, and a left synchronous oil make-up valve and a right synchronous oil make-up valve, which are connected with the synchronous oil cylinder respectively. The left and right synchronous oil make-up valves are arranged between oil ports of two cavities of two cylinders of the synchronous oil cylinder respectively. The hydraulic control valve comprises a safety valve, a three-position four-way electromagnetic reversing valve, a left balance valve and a right balance valve. A volume synchronization principle is adopted, so that the two doors of the hopper can be accurately and synchronously opened/closed; due to the adoption of the two synchronous oil make-up valves, synchronous error accumulation caused by a machining error or the internal relief of the oil cylinder can be completely avoided, and high synchronization performance can be kept all the time; and a balance valve is arranged in an oil way of a large cavity of each driving oil cylinder, so that the opening stability of the doors can be ensured, and the doors can be locked at any position.
Description
Technical field
The present invention relates to a kind of synchronous on-off drive unit, especially a kind of hopper door synchronous on-off device that is applicable to large-scale powder weighing-appliance.
Background technique
Large-scale weighing-appliance is the important equipment of major port, stevedoring loose unpacked material, and its hopper generally adopts extra quality door, the efficient that the direct influence of the quality of bin gate folding performance is weighed and the precision of metering.The weighing-appliance bin gate of active service all adopts Electrohydraulic push rod to implement to drive, and main existence is following not enough: (1) operational safety is poor, and working life is short, can't satisfy the requirement that weighing-appliance works long hours continuously; (2) practicability is bad, is difficult to be adapted to the smooth problem of blanking that solution causes by the powder arch camber and requires bin gate to implement the operating mode of opening and closing with upper frequency; (3) synchronism and locking weak effect, particularly in the process that bin gate is closed, two bin gates are easy to occur nonsynchronous phenomenon and are not closed completely real phenomenon, influence metering efficient and precision.
Summary of the invention
Technical problem: the objective of the invention is to overcome in the prior art deficiency it, provide a kind of simple in structure, synchronism good, operational safety is high, the large-scale hopper door synchronous on-off drive unit of weighing of long service life.
Technological scheme: the large-scale hopper door synchronous on-off drive unit of weighing of the present invention mainly is made up of power source, folding oil cylinder, synchronized splitter element and hydraulic control valve; Described power source comprises oil hydraulic pump and the motor that links to each other with oil hydraulic pump, and the inlet port of oil hydraulic pump is connected with fuel tank through oil pipe and oil suction filter; Described folding oil cylinder comprises the left and right driving oil cylinder that is installed in the hopper box both sides respectively, and the cylinder barrel of left and right driving oil cylinder links to each other with the hopper box casing, and the piston rod and the bin gate of left and right driving oil cylinder are hinged and connected; Described synchronized splitter element comprises synchronous fuel tank, the left and right synchronous Fill valve that links to each other with synchronous fuel tank respectively, and left and right synchronous Fill valve is installed in respectively between the two cavity oil mouth of two cylinders that constitute synchronous fuel tank; Synchronous fuel tank is two two bar double-act-ing hydraulic J-Horners, and the cylinder barrel of two two bar double-act-ing hydraulic J-Horners is fixedly linked a shared piston rod through flange; Described hydraulic control valve comprises safety valve, 3-position 4-way solenoid directional control valve, left and right equilibrium valve; Safety valve is installed in the oil outlet place of oil hydraulic pump; The filler opening of 3-position 4-way solenoid directional control valve is connected with the oil outlet of oil hydraulic pump; Its return opening is communicated with fuel tank through return filter, and in two actuator ports of 3-position 4-way solenoid directional control valve one is connected with the hydraulic fluid port of synchronous fuel tank, and another loculus with the left and right driving oil cylinder is connected; Left and right equilibrium valve is connected on the big chamber oil circuit of left and right driving oil cylinder; The left chamber hydraulic fluid port of two two bar double-act-ing hydraulic J-Horners of described formation synchronous fuel tank is interconnected through oil pipe and is connected with an actuator port of selector valve, and the right chamber hydraulic fluid port of two two bar double-act-ing hydraulic J-Horners is connected with the big chamber of left and right driving oil cylinder respectively through oil pipe and left and right equilibrium valve.
Described left and right driving oil cylinder is double-act-ing hydraulic J-Horner; Described left and right synchronous Fill valve is two-position two-way solenoid valve.
Beneficial effect: the present invention adopts the volume synchronization principles, and the synchronous fuel tank machining accuracy is high, can guarantee that two bin gates realize synchronous on-off accurately; Adopt two synchronous Fill valves; Can avoid fully because of machining error or because of letting out the synchronization error accumulation that causes in the oil cylinder; Remain good net synchronization capability; And can realize the exchange of deep fat easily, avoid between synchronous fuel tank and the big chamber of two driving oil cylinder that pressure oil forms too high temperature rise in the formed sealing cavity volume; In the oil circuit of the big chamber of two driving oil cylinder, respectively be provided with an equilibrium valve, both can have guaranteed the stationarity when bin gate is opened, also can realize bin gate locking at an arbitrary position.It is simple in structure, and synchronism is good, and operational safety is high, and long service life has practicability widely.
Description of drawings
Fig. 1 is a principle schematic of the present invention.
Among the figure: the 1-oil hydraulic pump; The 2-safety valve; 3-3-position 4-way solenoid directional control valve; A 4-left side is Fill valve synchronously; The right Fill valve synchronously of 5-; The 6-synchronous fuel tank; 7-left side equilibrium valve; The right equilibrium valve of 8-; 9-left side driving oil cylinder; The right driving oil cylinder of 10-.
Embodiment
To combine accompanying drawing that one embodiment of the present of invention are described further below:
As shown in Figure 1, the large-scale hopper door synchronous on-off drive unit of weighing of the present invention mainly is made up of power source, folding oil cylinder, synchronized splitter element and hydraulic control valve.Power source comprises oil hydraulic pump 1 and motor, and oil hydraulic pump 1 is the gear type oil hydraulic pump, and its pump shaft is connected with motor through coupling, and its inlet port is connected with fuel tank through oil pipe and oil suction filter.The folding oil cylinder comprises left driving oil cylinder 9 and right driving oil cylinder 10, and both are double-act-ing hydraulic J-Horner, are installed in the both sides of hopper box respectively, and its cylinder barrel and piston rod are hinged and connected with hopper box casing and bin gate respectively.The synchronized splitter element comprises synchronous fuel tank 6 and left and right two synchronous Fill valves 4,5; Synchronous fuel tank 6 comprises two two bar double-act-ing hydraulic J-Horners; The cylinder barrel of two cylinders is fixedly linked through flange; A shared piston rod, the left chamber hydraulic fluid port of two cylinders are interconnected through oil pipe and are connected with the actuator port of 3-position 4-way solenoid directional control valve 3, and the right chamber hydraulic fluid port of two cylinders is connected with the big chamber of left driving oil cylinder 9 and right driving oil cylinder 10 respectively through oil pipe, left equilibrium valve 7, right equilibrium valve 8; Fill valve 4 is two-position two-way solenoid valve with Fill valve 5, is installed in respectively between the two cavity oil mouth of two cylinders that constitute synchronous fuel tank 6.Hydraulic control valve comprises safety valve 2,3-position 4-way solenoid directional control valve 3, left equilibrium valve 7 and right equilibrium valve 8, and safety valve 2 is installed in the oil outlet place of oil hydraulic pump 1; 3-position 4-way solenoid directional control valve 3 is a three position four-way electromagnetic valve; Its filler opening is connected with the oil outlet of oil hydraulic pump; Return opening is connected with fuel tank through return filter; In two actuator ports one is connected with two hydraulic fluid ports that are interconnected of synchronous fuel tank 6, and another is connected with the loculus of left driving oil cylinder 9 and right driving oil cylinder 10 simultaneously; Left side equilibrium valve 7 is connected on the big chamber oil circuit of left driving oil cylinder 9 and right driving oil cylinder 10 with right equilibrium valve 8.
Working principle and working procedure:
(1) closes bin gate.Press automatically controlled shut the gate button; The left electromagnetic coil of selector valve 3 gets; The hydraulic oil that oil hydraulic pump 1 pumps gets into synchronous fuel tank 6 through 3-position 4-way solenoid directional control valve 3; Drive its piston rod and move right, make simultaneously wherein hydraulic oil respectively the one-way valve in left and right equilibrium valve 7,8 get into the big chamber of left driving oil cylinder 9 and right driving oil cylinder 10, its piston rod is overhanging closes bin gate; Meanwhile, the hydraulic oil in left driving oil cylinder 9 and right driving oil cylinder 10 loculuses returns fuel tank through 3-position 4-way solenoid directional control valve 3.After bin gate was closed, selector valve 3 was got back to meta, and left driving oil cylinder 9 and right driving oil cylinder 10 keep left respectively equilibrium valve 7 and right equilibrium valve 8 lockings guarantee that bin gate reliably closes.
(2) open bin gate.Press " opening the door " button of automatically controlled; The right electromagnetic coil of 3-position 4-way solenoid directional control valve selector valve 3 gets; The hydraulic oil that oil hydraulic pump 1 pumps directly gets into the loculus of left driving oil cylinder 9 and right driving oil cylinder 10 through 3-position 4-way solenoid directional control valve 3, and its piston rod retraction orders about bin gate and opens; Meanwhile, the hydraulic oil in left driving oil cylinder 9 and the right driving oil cylinder 10 big chambeies gets into synchronous fuel tanks 6 through left and right equilibrium valve 7,8 respectively, drives its piston rod and is moved to the left, and makes hydraulic oil wherein be back to fuel tank through 3-position 4-way solenoid directional control valve 3.
(3) vibration bin gate.Press shut the gate button and " opening the door " button continuously with the frequency that is per second 1 time to the maximum; Make left driving oil cylinder 9 stretch out back and forth synchronously, withdraw with right driving oil cylinder 10; Ordering about bin gate realizes " unlatchings " fast and " closes that " action forces the material whereabouts of the interior arch camber of hopper.
(4) repairing synchronously.If left driving oil cylinder 9 and right driving oil cylinder 10 are asynchronous or the phenomenon that bin gate is not closed completely occurs; Can press " repairing " button, it is electric that synchronous Fill valve 4 in a left side and the right electromagnetic coil of Fill valve 5 are synchronously got, at this moment; The hydraulic oil that pumps from oil hydraulic pump 1 is through 3-position 4-way solenoid directional control valve 3; Left and right synchronous Fill valve 4,5, left and right equilibrium valve 7,8 gets into the big chamber of left and right driving oil cylinder 9,10, and the oil closed cavity between synchronous fuel tank 6 and left and right driving oil cylinder 9, the 10 big chambeies is implemented repairing; Let out the synchronization error accumulation that causes in the elimination, and order about bin gate and close fully.
(5) deep fat exchange.When the temperature rise of the hydraulic oil in the sealing cavity volume that forms between synchronous fuel tank 6 and left driving oil cylinder 9 and the right driving oil cylinder 10 big chambeies is big; Press " repairing " button always; The electromagnetic coil that makes left and right synchronous Fill valve 4,5 all always; At this moment successively press shut the gate and " opening the door " button again, make left and right driving oil cylinder 9,10,3 ~ 5 strokes of operation.
Claims (3)
1. one kind large-scale hopper door synchronous on-off drive unit of weighing, it is characterized in that: it mainly is made up of power source, folding oil cylinder, synchronized splitter element and hydraulic control valve; Described power source comprises oil hydraulic pump (1) and the motor that links to each other with oil hydraulic pump (1), and the inlet port of oil hydraulic pump (1) is connected with fuel tank through oil pipe and oil suction filter; Described folding oil cylinder comprises the left and right driving oil cylinder (9,10) that is installed in the hopper box both sides respectively, and the cylinder barrel of left and right driving oil cylinder (9,10) links to each other with the hopper box casing, and the piston rod and the bin gate of left and right driving oil cylinder (9,10) are hinged and connected; The left and right synchronous Fill valve (4,5) that described synchronized splitter element comprises synchronous fuel tank (6), links to each other with synchronous fuel tank (6) respectively, left and right synchronous Fill valve (4,5) are installed in respectively between the two cavity oil mouth of two cylinders that constitute synchronous fuel tank (6); Synchronous fuel tank (6) is two two bar double-act-ing hydraulic J-Horners, and the cylinder barrel of two two bar double-act-ing hydraulic J-Horners is fixedly linked a shared piston rod through flange; Described hydraulic control valve comprises safety valve (2), 3-position 4-way solenoid directional control valve (3), left and right equilibrium valve (7,8); Safety valve (2) is installed in the oil outlet place of oil hydraulic pump (1); The filler opening of 3-position 4-way solenoid directional control valve (3) is connected with the oil outlet of oil hydraulic pump (1); Its return opening is communicated with fuel tank through return filter; A hydraulic fluid port with synchronous fuel tank (6) in two actuator ports of 3-position 4-way solenoid directional control valve (3) is connected, and another loculus with left and right driving oil cylinder (9,10) is connected; Left and right equilibrium valve (7,8) is connected on the big chamber oil circuit of left and right driving oil cylinder (9,10); The left chamber hydraulic fluid port of two two bar double-act-ing hydraulic J-Horners of described formation synchronous fuel tank (6) is interconnected through oil pipe and is connected with an actuator port of selector valve (3), and the right chamber hydraulic fluid port of two two bar double-act-ing hydraulic J-Horners is connected with the big chamber of left and right driving oil cylinder (9,10) respectively through oil pipe and left and right equilibrium valve (7,8).
2. the large-scale hopper door synchronous on-off drive unit of weighing according to claim 1, it is characterized in that: described left and right driving oil cylinder (9,10) is double-act-ing hydraulic J-Horner.
3. the large-scale hopper door synchronous on-off drive unit of weighing according to claim 1, it is characterized in that: described left and right synchronous Fill valve (4,5) is two-position two-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094858XA CN102619796A (en) | 2012-03-31 | 2012-03-31 | Synchronous opening/closing driving device for doors of large-sized weighing hopper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094858XA CN102619796A (en) | 2012-03-31 | 2012-03-31 | Synchronous opening/closing driving device for doors of large-sized weighing hopper |
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| CN102619796A true CN102619796A (en) | 2012-08-01 |
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| CN201210094858XA Pending CN102619796A (en) | 2012-03-31 | 2012-03-31 | Synchronous opening/closing driving device for doors of large-sized weighing hopper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613047A (en) * | 2013-11-27 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Four-stand-bar synchronous hydraulic lifting mechanism |
| CN104832477A (en) * | 2015-04-17 | 2015-08-12 | 南京中船绿洲机器有限公司镇江船舶辅机厂 | Boat-hanging device hydraulic synchronous control system |
| CN103264132B (en) * | 2013-05-17 | 2016-12-28 | 天津市天锻压力机有限公司 | Mobile working platform hydraulic control system based on balanced valve |
| CN110725820A (en) * | 2019-09-04 | 2020-01-24 | 山东求创机电工程有限公司 | Hydraulic synchronous control system |
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| CN2625391Y (en) * | 2003-05-27 | 2004-07-14 | 武汉钢铁设计研究总院 | Elevating gear for revolving furnace cover skirt |
| CN102116326A (en) * | 2011-02-23 | 2011-07-06 | 周建新 | Hydraulic push-pull synchronization method and device thereof |
| CN202545389U (en) * | 2012-03-31 | 2012-11-21 | 徐州铭硕机械科技有限公司 | Drive device for synchronous opening and closing of large weighing hopper gates |
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2012
- 2012-03-31 CN CN201210094858XA patent/CN102619796A/en active Pending
Patent Citations (3)
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| CN2625391Y (en) * | 2003-05-27 | 2004-07-14 | 武汉钢铁设计研究总院 | Elevating gear for revolving furnace cover skirt |
| CN102116326A (en) * | 2011-02-23 | 2011-07-06 | 周建新 | Hydraulic push-pull synchronization method and device thereof |
| CN202545389U (en) * | 2012-03-31 | 2012-11-21 | 徐州铭硕机械科技有限公司 | Drive device for synchronous opening and closing of large weighing hopper gates |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264132B (en) * | 2013-05-17 | 2016-12-28 | 天津市天锻压力机有限公司 | Mobile working platform hydraulic control system based on balanced valve |
| CN103613047A (en) * | 2013-11-27 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Four-stand-bar synchronous hydraulic lifting mechanism |
| CN104832477A (en) * | 2015-04-17 | 2015-08-12 | 南京中船绿洲机器有限公司镇江船舶辅机厂 | Boat-hanging device hydraulic synchronous control system |
| CN104832477B (en) * | 2015-04-17 | 2017-08-25 | 中船绿洲镇江船舶辅机有限公司 | Boat handing derrick hydraulic synchronous control system |
| CN110725820A (en) * | 2019-09-04 | 2020-01-24 | 山东求创机电工程有限公司 | Hydraulic synchronous control system |
| CN110725820B (en) * | 2019-09-04 | 2021-07-06 | 山东求创机电工程有限公司 | Hydraulic synchronous control system |
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Application publication date: 20120801 |