CN103241675A - Displacement direct-measuring and digital-display and automatic balancing device for multi-cylinder jacking system - Google Patents

Displacement direct-measuring and digital-display and automatic balancing device for multi-cylinder jacking system Download PDF

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Publication number
CN103241675A
CN103241675A CN2013101581500A CN201310158150A CN103241675A CN 103241675 A CN103241675 A CN 103241675A CN 2013101581500 A CN2013101581500 A CN 2013101581500A CN 201310158150 A CN201310158150 A CN 201310158150A CN 103241675 A CN103241675 A CN 103241675A
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China
Prior art keywords
oil cylinder
cylinder
oil
jacking
action
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Pending
Application number
CN2013101581500A
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Chinese (zh)
Inventor
王汉炜
郑志勇
徐景鲁
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Zhejiang Construction Machinery Group Co Ltd
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Zhejiang Construction Machinery Group Co Ltd
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Priority to CN2013101581500A priority Critical patent/CN103241675A/en
Publication of CN103241675A publication Critical patent/CN103241675A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a displacement direct-measuring and digital-display and automatic balancing device for a multi-cylinder jacking system. The displacement direct-measuring and digital-display and automatic balancing device is arranged on downward-jacking ground derricks and is characterized by comprising two stay-wire displacement sensing part, a monitoring instrument and a cylinder control system, a cylinder of each downward-jacking ground derrick is provided with a stay-wire displacement sensing part, a stay-wire displacement sensor in each stay-wire displacement sensing part is installed on each cylinder body of the downward-jacking ground derrick, a stay wire of each displacement sensor is fixed on a stay-wire fixing plate fixed on a cylinder telescopic rod of each downward-jacking ground derrick, hydraulic cylinder stations are installed on jacking platforms of the downward-jacking ground derricks, monitoring instruments and the cylinder control system are installed in the hydraulic cylinder stations, the stay-wire displacement sensing parts are connected with the monitoring instruments, the monitoring instruments are connected with the cylinder control system, and the cylinder control system is connected with the cylinders of the downward-jacking ground derrick. The displacement direct-measuring and digital-display and automatic balancing device is simple in structure, convenient to modify and convenient to operate.

Description

Heavy wool cylinder jack-up system is with directly surveying digital display displacement and automatic balance device
Technical field
The present invention relates to a kind of heavy wool cylinder jack-up system with straight digital display displacement and the automatic balance device surveyed, be applicable to down the two flat arm seat ground of jacking top slewing pole, single action arm seat ground pole.
Background technology
Along with power system development, setting up of high pressure, the remote delivery conduit of superhigh pressure is more and more, and also be more and more higher in order to satisfy the setting height(from bottom) that transmission line of electricity sets up the electric power tower of needs, consideration based on safety and in-use performance, reduce amount of high-altitude operation as far as possible, original electric power tower lifting device suspended holding pole has begun to step down from the stage of history gradually in electric power high tower construction operation, the substitute is jacking type seat ground pole under the heavy wool cylinder.This type of following jacking seat ground pole just can be realized the jacking supernumerary segment of pole by at terrestrial operation Double Tops oil-lifting jar, thereby makes pole reach the use height of needs.In the jacking process, the all weight in pole top is all born by two jacking cylinders, if it is asynchronous to occur the jacking cylinder action at this moment, it is the stroke difference (difference between the stroke of two oil cylinders exceeds zone of reasonableness) of oil cylinder, will make the squareness on pole top surpass the scope that allows, thus the danger that causes pole to collapse.In existing mode, basically be to guarantee the synchronous of two oil cylinders by adjusting synchronous valve, auxiliary stroke with oil cylinder shows the stroke of manual observation oil cylinder then, manually control when artificial carrying out appears when asynchronous in both sides, find with carrying out the jacking operation behind the beans-and bullets shooter again.And in practical operation, guarantee that by adjusting synchronous valve two oil cylinders are difficult to accomplish fully synchronously, in a jacking process, need manually adjusting repeatedly often.The stroke telltale is for showing single oil cylinder respectively separately, between not contact, the difference of both sides needs the people to calculate for going, it is very fast again that stroke shows that numeral changes, observing neither be very convenient.
The patent No. is 201120424348.5, patent name discloses a kind of technical scheme in the Chinese patent of " a kind of novel synchronous jacking control system based on the CAN bus ": this control system adopts CAN bus and Closed loop Control in the hydraulic climbing formwork frame climbs process, be that each sub-controller detects each Jacking point displacement at any time and uploads to master controller by the CAN bus, master controller is adjusted by calculating relatively, send control command to each sub-controller, the whole process of climbing is carried out synchronously.Displacement signal records by being installed in in-oil cylinder position transduser, and the signal arrangement is undertaken by signal processor, and signal is relatively judged, handled by master controller and finish, and the execution of control signal is finished by sub-controller and actuating unit; Signal transmission between master controller and sub-controller is finished by the CAN bus.
Technique scheme can preferably resolve the problem of synchronization of jacking up, and the whole process of climbing is carried out synchronously, and such scheme relatively is applicable to building ground dismounting not frequently under the situation comparatively speaking.But the seat ground pole of mentioning in the technology of the present invention field is field construction, the dismounting frequency is very high, general about one month will dismounting once, and in technique scheme, can not operate separately single oil cylinder, so technique scheme be not very suitable in the art.
Summary of the invention
Technical matters to be solved by this invention is to overcome deficiency of the prior art and provide a kind of simple in structure, convenient, easy to operate heavy wool cylinder jack-up system of repacking with straight digital display displacement and the automatic balance device surveyed.
The technical scheme that the present invention solves the problems of the technologies described above employing is: this heavy wool cylinder jack-up system is with directly surveying digital display displacement and automatic balance device, be arranged on down on the jacking type seat ground pole, it is characterized in that: comprise two cover stay-supported displacement sensing parts, one cover monitoring instrument and a cover cylinder control system, be respectively arranged with cover stay-supported displacement sensing parts under each on the oil cylinder of jacking type seat ground pole, stay-supported displacement pickup in every cover stay-supported displacement sensing parts is installed in down on the cylinder block of jacking type seat ground pole, its backguy is fixed on the backguy adapter plate, the backguy adapter plate is fixed on down above the oil cylinder expansion link of jacking type seat ground pole, the jacking of following jacking type seat ground pole is equipped with the oil cylinder hydraulic station on walking on stage, monitoring instrument and cylinder control system are installed in the oil cylinder hydraulic station, stay-supported displacement sensing parts are connected with monitoring instrument, monitoring instrument is connected with cylinder control system, and cylinder control system is connected with the oil cylinder of following jacking type seat ground pole.The present invention is by straight displacement of surveying two oil cylinders, by calculating the displacement difference of two oil cylinders, thereby two oil cylinders controlled, and reaches both sides self-balanced purpose.The present invention simultaneously also is provided with one-sided oil cylinder range protection, and oil cylinder is moved in the range of specialized range, prevents the operation of oil cylinder over travel, damages oil cylinder and pole is caused danger.The present invention can realize the single movement of bilateral oil cylinder and action simultaneously, and is simple to operation.Adopting the benefit of stay-supported displacement pickup is can directly measure the distance of oil cylinder jacking by the length of backguy, measures fast directly perceived.The stay-supported displacement pickup adopts external mounting means, can directly judge the quality of sensor by backguy, and adopts the backguy sensor of external conveniently to install sensor additional, is convenient to the transformation to old product.
Monitoring instrument of the present invention comprises three display windows, be respectively independent stroke display window and two oil cylinder stroke difference display windows of two oil cylinders, monitoring instrument converts the analog quantity wire size that obtains to digital quantity signal, show in real time at three display windows respectively, monitoring instrument outputs to cylinder control system according to the oil cylinder stroke signal of gathering with corresponding control signal.The advantage of technique scheme is that the displacement of one-sided oil cylinder and the displacement difference of bilateral oil cylinder show in real time at same interface, makes things convenient for the user to observe.
The control signal of monitoring instrument output of the present invention comprises the range control signal of each oil cylinder and the path difference control signal that is out of the line of oil cylinder.The advantage of technique scheme is that the range control signal of each oil cylinder can guarantee that oil cylinder moves in the range of specialized range, prevent the operation of oil cylinder over travel, damage oil cylinder and pole is caused danger, when oil cylinder stroke reached maximum oil cylinder stroke, oil cylinder quit work automatically.The path difference control signal that is out of the line of oil cylinder can be controlled two oil cylinders, realizes the balance adjustment of two oil cylinders automatically.
Cylinder control system of the present invention is controlled oil cylinder according to the control signal that receives, stretch out in the course of action at oil cylinder, if the stroke difference of two oil cylinders has surpassed the allowed band of regulation, then the oil cylinder that stroke is bigger stops to stretch out action, another oil cylinder continues to stretch out action, after the stroke difference of two oil cylinders was zero, two oil cylinders continued to carry out simultaneously the jacking operation; In oil cylinder withdrawal course of action, if the stroke difference of two oil cylinders has surpassed the allowed band of regulation, then the oil cylinder that stroke is bigger continues the withdrawal action, and another oil cylinder stops the withdrawal action, after the formation difference of two oil cylinders was zero, two oil cylinders continued to withdraw simultaneously action.The advantage of technique scheme is that mode is simple, but the progressive error scope of two oil cylinders of the fine control of energy, the safety of assurance jacking operation.
The present invention compared with prior art has the following advantages: by the stay-supported displacement pickup real-time measurement is carried out in the displacement of oil cylinder.Subtraction calculations is carried out in the bilateral oil cylinder displacement of gained, obtains the progressive error of bilateral oil cylinder.
The displacement difference of the displacement of one-sided oil cylinder and bilateral oil cylinder shows in real time at same interface, makes things convenient for the user to observe.Stroke difference according to the bilateral oil cylinder is carried out self-balanced control to the bilateral oil cylinder.By button and change-over swith, realize the action individually or simultaneously of bilateral oil cylinder, avoided operating by both hands the action of bilateral oil cylinder, simple to operation.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is control principle scheme drawing of the present invention.
Fig. 3 is monitoring instrument functional block diagram of the present invention.
Fig. 4 is B portion partial enlarged drawing among Fig. 1.
The specific embodiment
The present invention includes two cover stay-supported displacement sensing parts I, a cover monitoring instrument II, a cover cylinder control system III, all be arranged on down on the jacking type seat ground pole A.
Referring to Fig. 1 and Fig. 4, every cover stay-supported displacement sensing parts I comprises stay-supported displacement pickup 1, backguy 2, backguy adapter plate 3.Stay-supported displacement pickup 1 is installed in down on the cylinder block 4 of jacking type seat ground pole A, backguy 2 is fixed on the backguy adapter plate 3, backguy adapter plate 3 is fixed on down above the oil cylinder expansion link 5 of jacking type seat ground pole A, backguy 2 can or be involved in automatically according to the flexible elongation of oil cylinder, thereby guarantee identical with the actual stroke of oil cylinder, the real-time stroke that detects oil cylinder of displacement that stay-supported displacement pickup 1 is measured.
The oil cylinder hydraulic station 7 of following jacking type seat ground pole A is installed in jacking and walks on stage on 6, and monitoring instrument II and cylinder control system III are installed in that oil cylinder hydraulic station 7 is convenient to be observed and the positions of operation.Stay-supported displacement sensing parts I is connected with the monitoring instrument II, and the monitoring instrument II is connected with the cylinder control system III, and the cylinder control system III is connected with the oil cylinder of following jacking type seat ground pole A.
Monitoring instrument II such as Fig. 3, by gathering stay-supported displacement pickup 1 signal, stroke to oil cylinder carries out real-time detection and demonstration, the monitoring instrument II is divided three display windows, be respectively 9, No. two oil cylinder stroke display windows 10 of an oil cylinder stroke display window and bilateral oil cylinder stroke difference display window 11 from top to bottom.The monitoring instrument II is according to the oil cylinder stroke signal of gathering, corresponding control signal is outputed to the cylinder control system III, above-mentioned control signal is respectively oil cylinder range control signal No. one, No. two oil cylinder range control signals, oil cylinder path difference control signal that is out of the line, No. two oil cylinders path difference control signal that is out of the line.Oil cylinder range control signal is used for the bonding side cylinder works in effective travel, and oil cylinder is out of the line the path difference control signal for the balance Control Scheme that guarantees the bilateral oil cylinder.
The principle of work of cylinder control system III as shown in Figure 2.Wherein QF is circuit breaker, KA1 is oil cylinder top relay, KA2 is that relay falls in oil cylinder, YV11, YV21 is that oil cylinder is stretched electromagnetic valve, YV12, YV22 is oil cylinder contracting electromagnetic valve, KA3 is an oil cylinder single movement relay, KA4 is No. two oil cylinder single movement relays, KA5 is oil cylinder path difference relay that is out of the line, KA6 is No. two oil cylinders path difference relays that are out of the line, SB1 is that oil cylinder is stretched button, and SB2 is that button falls in oil cylinder, and SA11 is an oil cylinder range relay (monitoring instrument output), SA21 is No. two oil cylinder range relays (monitoring instrument output), SA12 is oil cylinder path difference relay (monitoring instrument output) that is out of the line, and SA22 is No. two oil cylinders path difference relays (monitoring instrument output) that are out of the line, and SA is the cylinder action select switch.Stretching, stop by control oil cylinder telescoping electromagnetic valve YV11, YV21, YV12, YV22 of jacking cylinder realizes that the action of 3-position 4-way Self-returning Directional Control Valve realizes.The bilateral oil cylinder can single oil cylinder single movement, can realize that also the bilateral oil cylinder moves simultaneously and carries out balance Control Scheme.
The single movement of single oil cylinder: by oil cylinder select switch SA, select needed cylinder action situation, the oil cylinder select switch is divided into third gear, and first grade is an oil cylinder single movement, second grade is that No. one, No. two oil cylinders move simultaneously, and third gear is No. two oil cylinder single movements.Be the example explanation with an oil cylinder single movement, Hydraulic Station 7 energisings, the oil pump normal operation, the circuit breaker Q of closing F, control loop gets, cylinder action select switch SA gets to first gear, the oil cylinder single movement relay K A3 actuating of relay, press oil cylinder and stretch button SB1 this moment, oil cylinder top relay K A1 gets electronic work, oil cylinder is stretched electromagnetic valve YV11 and is got electricly, and oil cylinder does to stretch out action, and an oil cylinder quits work automatically when unclamping oil cylinder and stretch button SB1, if this moment, the stroke of an oil cylinder reached maximum effective travel then an oil cylinder range relay SA11 action, automatically cut off the action of stretching out of an oil cylinder, guarantee that an oil cylinder operates within the effective travel, the action but an oil cylinder can be withdrawn.Fall button SB2 if press oil cylinder, then oil cylinder falls relay K A2 and gets electronic work, and oil cylinder contracting electromagnetic valve YV12 gets electric, and No. one oil cylinder is done the withdrawal action, and an oil cylinder quits work automatically when unclamping oil cylinder and fall button SB2.Oil cylinder is stretched button SB1 or button SB2 falls in oil cylinder no matter press in this course, No. two all akinesias of oil cylinder.As No. two oil cylinder single movements of need, then need oil cylinder select switch SA is switched to third gear, fall button SB2 No. two oil cylinders are operated stretching button SB1 or oil cylinder by oil cylinder, the single movement of No. two oil cylinders is similar to the single movement of an oil cylinder, oil cylinder akinesia during No. two oil cylinder single movements.
Bilateral oil cylinder self-balancing action simultaneously: in Hydraulic Station 7 energisings, under the oil pump normal operation, the circuit breaker Q of closing F, control loop gets, oil cylinder select switch SA gets to second gear, and oil cylinder, No. two oil cylinders will be stretched button SB1 and the operation of button SB2 and action simultaneously fall in oil cylinder along with oil cylinder this moment.Stretch button SB1 when pressing oil cylinder, oil cylinder top relay K A1 gets electronic work, oil cylinder is stretched electromagnetic valve YV11, oil cylinder contracting electromagnetic valve YV21 simultaneously, an oil cylinder, No. two oil cylinder does to stretch out action simultaneously, oil cylinder when unclamping oil cylinder and stretch button SB1, No. two oil cylinder quits work simultaneously automatically, if this moment an oil cylinder, No. two oil cylinders reach maximum effective travel separately, oil cylinder range relay SA11 then, No. two oil cylinder range relay SA21 all moves, automatically cut off correspondence and stretch out action, guarantee that two oil cylinders operate within the effective travel, the action but two oil cylinders can be withdrawn.Stretch out in the course of action at oil cylinder, if the stroke difference of an oil cylinder and No. two oil cylinders has surpassed the allowed band of regulation, i.e. balance play is then carried out in oil cylinder path difference relay SA12 or No. two oil cylinders path difference relay SA22 action of being out of the line of being out of the line automatically.SA12 action in this way, then an oil cylinder stops to stretch out action, and No. two oil cylinder continues to stretch out action, when the stroke difference of bilateral gets back to zero, an oil cylinder autonomous recovery action, bilateral continues to carry out simultaneously the jacking operation.Also can pass through cylinder action select switch SA this moment, manually carries out the balance control of bilateral.Button SB2 falls if press oil cylinder, two oil cylinders then move just opposite when withdrawing action simultaneously, if still SA12 action, then this moment, an oil cylinder was proceeded the withdrawal action, No. two oil cylinder then stops the withdrawal action, after treating that bilateral stroke difference is eliminated, No. two oil cylinder recovers the withdrawal action automatically.
Though the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technical personnel of being familiar with this technology not breaking away from change and the retouching of doing in the spirit and scope of the present invention, all should belong to protection scope of the present invention.

Claims (4)

1. a heavy wool cylinder jack-up system is with directly surveying digital display displacement and automatic balance device, be arranged on down on the jacking type seat ground pole, it is characterized in that: comprise two cover stay-supported displacement sensing parts, one cover monitoring instrument and a cover cylinder control system, be respectively arranged with cover stay-supported displacement sensing parts under each on the oil cylinder of jacking type seat ground pole, stay-supported displacement pickup in every cover stay-supported displacement sensing parts is installed in down on the cylinder block of jacking type seat ground pole, its backguy is fixed on the backguy adapter plate, the backguy adapter plate is fixed on down above the oil cylinder expansion link of jacking type seat ground pole, the jacking of following jacking type seat ground pole is equipped with the oil cylinder hydraulic station on walking on stage, monitoring instrument and cylinder control system are installed in the oil cylinder hydraulic station, stay-supported displacement sensing parts are connected with monitoring instrument, monitoring instrument is connected with cylinder control system, and cylinder control system is connected with the oil cylinder of following jacking type seat ground pole.
2. heavy wool cylinder jack-up system according to claim 1 is with directly surveying digital display displacement and automatic balance device, it is characterized in that: described monitoring instrument comprises three display windows, be respectively independent stroke display window and two oil cylinder stroke difference display windows of two oil cylinders, monitoring instrument converts the analog quantity wire size that obtains to digital quantity signal, show in real time at three display windows respectively, monitoring instrument outputs to cylinder control system according to the oil cylinder stroke signal of gathering with corresponding control signal.
3. heavy wool cylinder jack-up system according to claim 2 is characterized in that with directly surveying digital display displacement and automatic balance device: the control signal of described monitoring instrument output comprises the range control signal of each oil cylinder and the path difference control signal that is out of the line of each oil cylinder.
4. heavy wool cylinder jack-up system according to claim 1 is with directly surveying digital display displacement and automatic balance device, it is characterized in that: described cylinder control system is controlled oil cylinder according to the control signal that receives, stretch out in the course of action at oil cylinder, if the stroke difference of two oil cylinders has surpassed the allowed band of regulation, then the oil cylinder that stroke is bigger stops to stretch out action, another oil cylinder continues to stretch out action, after the stroke difference of two oil cylinders was zero, two oil cylinders continued to carry out simultaneously the jacking operation; In oil cylinder withdrawal course of action, if the stroke difference of two oil cylinders has surpassed the allowed band of regulation, then the oil cylinder that stroke is bigger continues the withdrawal action, and another oil cylinder stops the withdrawal action, after the formation difference of two oil cylinders was zero, two oil cylinders continued to withdraw simultaneously action.
CN2013101581500A 2013-05-02 2013-05-02 Displacement direct-measuring and digital-display and automatic balancing device for multi-cylinder jacking system Pending CN103241675A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105398079A (en) * 2015-12-21 2016-03-16 南车戚墅堰机车车辆工艺研究所有限公司 Pressing plate multi-cylinder movement balancing device
CN105905815A (en) * 2014-07-18 2016-08-31 国家电网公司 Work method of seating-type self-balance holding pole

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Publication number Priority date Publication date Assignee Title
EP1398602A2 (en) * 2002-09-13 2004-03-17 MAHA Maschinenbau Haldenwang GmbH & Co. KG Device for measuring and controlling the position of a lifting platform
CN1903698A (en) * 2006-08-04 2007-01-31 长江三峡通航管理局 Multipoint synchronous lifting device and its lifting method
CN201436280U (en) * 2009-04-28 2010-04-07 上海颖川加固工程技术有限公司 Multi-point synchronization hydraulic lifting system
CN201545635U (en) * 2009-11-19 2010-08-11 浙江省建设机械集团有限公司 Holding rod with double flat arms
CN201650133U (en) * 2009-12-28 2010-11-24 荆州市元泽石油设备有限公司 Oil derrick translation synchronous control device
CN203383570U (en) * 2013-05-02 2014-01-08 浙江省建设机械集团有限公司 Direct-measured digital display displacement and automatic balance device for jacking multiple oil cylinders

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398602A2 (en) * 2002-09-13 2004-03-17 MAHA Maschinenbau Haldenwang GmbH & Co. KG Device for measuring and controlling the position of a lifting platform
CN1903698A (en) * 2006-08-04 2007-01-31 长江三峡通航管理局 Multipoint synchronous lifting device and its lifting method
CN201436280U (en) * 2009-04-28 2010-04-07 上海颖川加固工程技术有限公司 Multi-point synchronization hydraulic lifting system
CN201545635U (en) * 2009-11-19 2010-08-11 浙江省建设机械集团有限公司 Holding rod with double flat arms
CN201650133U (en) * 2009-12-28 2010-11-24 荆州市元泽石油设备有限公司 Oil derrick translation synchronous control device
CN203383570U (en) * 2013-05-02 2014-01-08 浙江省建设机械集团有限公司 Direct-measured digital display displacement and automatic balance device for jacking multiple oil cylinders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105905815A (en) * 2014-07-18 2016-08-31 国家电网公司 Work method of seating-type self-balance holding pole
CN105398079A (en) * 2015-12-21 2016-03-16 南车戚墅堰机车车辆工艺研究所有限公司 Pressing plate multi-cylinder movement balancing device

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Application publication date: 20130814