CN1715651A - Cantilever crane type concrete transport pump - Google Patents
Cantilever crane type concrete transport pump Download PDFInfo
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- CN1715651A CN1715651A CN 200410025550 CN200410025550A CN1715651A CN 1715651 A CN1715651 A CN 1715651A CN 200410025550 CN200410025550 CN 200410025550 CN 200410025550 A CN200410025550 A CN 200410025550A CN 1715651 A CN1715651 A CN 1715651A
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Abstract
The cantilever crane type concrete transmission pump consists of chassis, pumping system and distributing rods. It features the chassis, which is made by Nissan Isuzu Co., Ltd., reaches to European's II exhaust standard and has highest running speed of 90 km/hr for fast reaching the site; the distributing rods in two section arm double cylinder support structure and with load sensing technology adopted; and the hydraulic pumping system operating in double pump cocurrent technology. The present invention has high distributing rod stability, high hydraulic pump rotation speed and no air sucking trouble.
Description
One, technical field:
The present invention relates to a kind of concrete pump, particularly disclose a kind of boom type concrete pump, be mainly used in various industry and civil building construction works such as the concrete demand is big, quality requirement is high industrial equipment foundation construction, water conservancy dykes and dams, bridge, tall building.
Two, background technique:
In recent years, great changes have appearred in the construction market of China, and the engineering time shortens greatly, and efficiency of construction significantly improves, and this just requires pumping equipment must adapt to the variation in market.At present, concrete pump roughly is divided three classes both at home and abroad.One class is a concrete hauling pump, and general truck can drag its walking, about travelling speed regulation 12km/h.But the advantage of this type of transfer pump is the pumping tall building, and vertical pump concrete height can reach about 250m, and shortcoming is that necessary external transmission and concrete transmission pipeline, mobility are poor.Second class is a Vehicular concrete conveying pump, and equipment mobility is good, can move with the chassis, but the pumping tall building, shortcoming is must external transmission and concrete transmission pipeline.The 3rd class is the boom type concrete pump, carries boom, and whole equipment mobility is good.Measure up to about 130m3/h transmission and concrete transmission side, the efficiency of construction height.But the producer that makes at present, the boom type concrete pump both at home and abroad adopts two joint arm list oil cylinders of boom to support more.
Three, summary of the invention:
Technical problem to be solved by this invention is when continuing the advantage of boom type concrete pump, overcome deficiency of the prior art, be poor work stability to occur after boom length surpasses 40 meters, the defective that whole boom can be shaken, and solving the working speed raising, empty problem is inhaled in the oil-feed of oil pump.
The present invention is achieved in that a kind of boom type concrete pump, comprise hopper, oscillating oil cylinder, conveying cylinder, washing chamber, master cylinder, delivery pipe composition pumping system, pumping system reliably is connected with chassis machine, supporting leg by the operation of electrical system and hydraulic system can upper and lowerly stretch, rotary oscillation, supporting leg and boom are by the bearing pin mechanical connection, it is in place that whole equipment can move at urban construction site with the chassis, it is characterized in that:
A) boom is by supporting its two joint arms pair oil cylinders of not shaking, and a joint arm is by two joint arms pair oil cylinder supports, double connecting rod and two joint arm mechanical connections, and along with stretching that the two oil cylinders of two joint arms support, double connecting rod, two joint arms are finished the revolution action;
B) the pumps hydraulic system adopts double pump interflow technology, and the axle of main and auxiliary oil pump connects by mechanical spline, jointly to the master cylinder fuel feeding, finishes the expanding-contracting action of master cylinder through main reversing valve;
C) the boom hydraulic system is by the operation power pump of load sensing type variable displacement pump as boom, and which type of load no matter boom bear, and variable capacity oil pump can sense actual load by the signal oil circuit, and according to the corresponding adjustment oil pump capacity of actual load.
Below content of the present invention is illustrated one by one:
1, boom type concrete pump
Form pumping system by hopper 9, oscillating oil cylinder 8, conveying cylinder 6, washing chamber 5, master cylinder 4, delivery pipe 10, and reliably be connected with chassis 1 machinery.Supporting leg 7 by hydraulic operation can stretch up and down, rotary oscillation.Supporting leg 7 passes through the bearing pin mechanical connection with boom 2.Whole equipment moves with chassis 1, and in place at urban construction site, travelling speed can reach about 90km/h.
2, the two oil cylinders of two joint arms support
After boom length surpassed 40 meters, the boom working stability was relatively poor, and whole boom is easily shaken, and brings difficulty to site operation.Boom of the present invention adopts the two oil cylinder supporting structures of two joint arms, efficiently solves the problems referred to above.The two oil cylinder supporting structures of two joint arms are seen Fig. 2.
One joint arm 11 is by pair oil cylinders support 12 of two joint arms, double connecting rod 13 and two joint arms, 14 mechanical connections, and along with stretching of the two oil cylinders supports 12 of two joint arms, double connecting rod 13, two joint arms 14 are finished the revolution action.
3, the pumps hydraulic system adopts double pump interflow technology
Boom type concrete pump delivering concrete side amount is big, up to 130m3/h.The oil pump capacity that must improve in the pumping system just can reach designing requirement.At present, the producer that makes the boom type concrete pump both at home and abroad adopts single oil pump of 260ml/r discharge capacity, working speed 2300r/min more.So high rotating speed easily causes the oil-feed of oil pump to inhale sky, and moment causes oil pump to damage.The present invention adopts the oil pump parallel connection of oil pump and the 75ml/r of 190ml/r, satisfies 130m in theory fully
3The transmission and concrete transmission requirement of/h, not only working speed is promoted, and has thoroughly solved oil pump again and has inhaled empty problem.Double pump interflow technical schematic diagram is seen Fig. 3.
190ml/r oil pump 15 axises machinery spline connects 75ml/r oil pump 16, jointly to master cylinder 18 fuel feeding, finishes the expanding-contracting action of master cylinder 18 through main reversing valve 17.
4, the boom hydraulic system adopts the load sensing technology
The load that bears during boom work is an impact load.At present, boom work oil pump belongs to quantitative oil pump mostly both at home and abroad, supplies with the certain oil mass of boom.Boom bears when changing between the high low-load, and the boom movement speed also is high and low speedization.For 43 meters cantilever boom, easily cause the boom shake, influence the complete machine service behaviour.The present invention adopts load sensing type variable capacity oil pump to substitute quantitative oil pump as the boom operation power.Which type of load no matter boom bear, and variable capacity oil pump can sense actual load by the signal oil circuit, and according to the corresponding adjustment oil pump capacity of actual load, thereby keep the stability of boom work.The load sensing technical schematic diagram is seen Fig. 4.
Manually electro-hydraulic proportion reversing valve 19 is formed commutation loop, provide actual load to analyze relatively to shuttle valve 20,21,22 after, select maximum actual load to feed back to variable capacity oil pump 24 and carry out discharge capacity and regulate through signal oil circuit 23.
5, electric system is provided with programmable controller
Boom type concrete pump collection mechanical electronic hydraulic height is integrated.Mechanical device is an actuator, and hydraulic system is the power section of actuator, and electric system is the control maincenter.Electric system maincenter control mode has two kinds substantially.A kind of is to rely on various relay to finish control, and components and parts are many, rate of fault height, job insecurity.Another kind is a programmable controller, establishes program work according to desire, its integrated degree height, good operating stability.HDL5250THBIS-37 and HDL5350THBIS-43 product promptly adopt this kind control mode.Electrical schematic is seen Fig. 5.
Displacement inductive sensor 25 input electric signals are given programmable controller 26 and add-on module 27 thereof, analyze the back and establish the program output signal to solid-state relay 28 and 29 by desire, finish and carry out action.
The key technology of product of the present invention: 1, mechanical-electrical-hydraulic integration design; 2, carry can turn round, the boom of telescopic folding; 3, the two oil cylinders of two joint arms support; 4, pumps hydraulic system double pump interflow technology; 5, the boom hydraulic system adopts the load sensing technology; 6, electric system is provided with programmable controller; 7, the pump delivery pressure of transfer pump hydraulic system is 010.5～20MPa, and the pumping capacity index is by original 120Mpam
3Rise to 500～600Mpam
3
Boom type concrete pump technology with regard to its structure and performance, mainly is divided into three parts: chassis, pumping system and boom.Two class chassis of daily output Isuzu Motors company are adopted on the chassis, reach European II emission standard, move flexibly, and maximum travel speed can reach about 90km/h, is convenient to fast in place in the building site; In engine in situ, peak output reaches 265KW to pumping system power by transfer case (PTO) power taking, and the boom maximum perpendicular that four joint arms are formed stretches and highly is 43 meters.At present, the boom type concrete pump is the high-end product in the concrete pump series, and market prospects are very wide.
Four, description of drawings:
Fig. 1 is a total arrangement schematic representation of the present invention;
Fig. 2 is the two oil cylinder supporting structure figure of the present invention's two joint arms;
Fig. 3 is a double pump of the present invention interflow technical schematic diagram;
Fig. 4 is a load sensing technical schematic diagram of the present invention;
Fig. 5 is programmable controller schematic diagram figure of the present invention.
Five, embodiment:
HDL5250THBIS-37 and HDL5350THBIS-43 boom type concrete pump are two kinds of product types of the present invention.Product belongs to the machinery of electromechanical integration in the light, mechanical, electrical integrated complete sets of equipment, is mainly used in various industry and civil building construction works such as the concrete demand is big, quality requirement is high industrial equipment foundation, water conservancy, dykes and dams, bay, tunnel, bridge, median low structure.Its working principle is to connect by engine mechanical to drive hydraulic-pressure pump, change chemical energy into the hydraulic pressure energy, hydraulic-pressure pump connects various hydrovalves by pipeline, can change hydraulic pressure into mechanical energy, guide's solenoid directional control valve mechanical connection master hydraulicdirectional control valve, form the closed loop that automation is controlled by said elements, concrete can directly be poured into a mould working surface through the boom pipeline.The boom mechanical connection of being made up of by " R " shape folding mode four joint arms turns round supporting base, and boom supports with revolution and makes swing, the expanding-contracting action that 365 ° of revolutions reach stretching, extension, contraction and the front and back supporting leg finishing respectively to save jib by the manipulation of electro-hydraulic proportional valve.The present invention is a kind of efficient, high-quality, low consumption, energy-conservation new product.
Elaborate with reference to the accompanying drawings below.
According to Fig. 1, master cylinder 4 stretches out together by the concrete piston in washing chamber's 5 drive conveying cylinders 6 or withdraws, and the concrete in the hopper 9 is sent to the discharge port delivery pipe 10 of hopper 9 by the reciprocal switching of oscillating oil cylinder 8.Because the present invention places pumping system on the chassis 1, form movably pumping part.Discharge port delivery pipe 10 can be opened with boom 2, and directly cast concrete is to table top.
According to Fig. 2, be installed in the two oil cylinders of two joint arms that save on the arm 11 and support 12 flexible drive double connecting rods 13 rotations, two joint arms 14 are along with finishing the angle rotation.Two oil cylinder supporting structures 12 make two joint arms 14 revolutions more steadily, jitter is little.
According to Fig. 3,190ml/r oil pump 15 axises machinery spline connects 75ml/r oil pump 16, jointly to master cylinder 18 fuel feeding, finishes the expanding-contracting action of master cylinder 18 through main reversing valve 17.The employing of double pump interflow technology makes the working speed of two oil pumps bring up to 2300r/min from 1900r/min, has improved the oil pump functional reliability.
According to Fig. 4, manually electro-hydraulic proportional valve 19 provides real work symbol load (pressure signal) to shuttle valve 20,21,22, three shuttle valves compare real work load (pressure signal), select maximum value to feed back to the load sensing variable capacity oil pump through signal oil circuit 23, finish the variation of oil pump capacity.The employing of load sensing technology makes variable capacity oil pump 24 be in the best power matching status all the time, and energy-saving effect is obvious, and system's heating is little.
With reference to the accompanying drawings 5, displacement inductive sensor 25 is gathered signals to programmable controller 26 and add-on module 27, outputs signal to solid-state relay 28,29 by the desire program of establishing after the analysing and processing and finishes to carry out and move.The employing of programmable controller is simplified the design of electric system greatly, has improved reliability.
Claims (4)
1. boom type concrete pump, comprise hopper, oscillating oil cylinder, conveying cylinder, washing chamber, master cylinder, delivery pipe composition pumping system, pumping system reliably is connected with chassis machine, supporting leg by the operation of electrical system and hydraulic system can upper and lowerly stretch, rotary oscillation, supporting leg and boom are by the bearing pin mechanical connection, it is in place that whole equipment can move at urban construction site with the chassis, it is characterized in that:
A) boom is by supporting its two joint arms pair oil cylinders of not shaking, and a joint arm is by two joint arms pair oil cylinder supports, double connecting rod and two joint arm mechanical connections, and along with stretching that the two oil cylinders of two joint arms support, double connecting rod, two joint arms are finished the revolution action;
B) the pumps hydraulic system adopts double pump interflow technology, and the axle of main and auxiliary oil pump connects by mechanical spline, jointly to the master cylinder fuel feeding, finishes the expanding-contracting action of master cylinder through main reversing valve;
C) the boom hydraulic system is by the operation power pump of load sensing type variable displacement pump as boom, and which type of load no matter boom bear, and variable capacity oil pump can sense actual load by the signal oil circuit, and according to the corresponding adjustment oil pump capacity of actual load.
2. boom type concrete pump according to claim 1, it is characterized in that: described electrical system is provided with programmable controller, the displacement inductive sensor is gathered signal and is delivered to programmable controller and add-on module, output signal to solid-state relay by the desire program of establishing after the analysing and processing, finish and carry out action.
3. boom type concrete pump according to claim 1 and 2 is characterized in that: the main pump discharge capacity is 190ml/r in the technology of described employing double pump interflow, and auxilliary pump displacement is 75ml/r.
4. boom type concrete pump according to claim 3 is characterized in that: the pumping capacity index reached 500～600MPam of transfer pump hydraulic system
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025550 CN1715651A (en) | 2004-06-29 | 2004-06-29 | Cantilever crane type concrete transport pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025550 CN1715651A (en) | 2004-06-29 | 2004-06-29 | Cantilever crane type concrete transport pump |
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|---|---|
| CN1715651A true CN1715651A (en) | 2006-01-04 |
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| CN 200410025550 Pending CN1715651A (en) | 2004-06-29 | 2004-06-29 | Cantilever crane type concrete transport pump |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445559C (en) * | 2006-04-25 | 2008-12-24 | 上海鸿得利重工股份有限公司 | Sludge pump and its operation method |
| WO2011116701A1 (en) * | 2010-03-26 | 2011-09-29 | 长沙中联重工科技发展股份有限公司 | Concrete distributing device with function of driving boom emergently and control method thereof |
| CN101550763B (en) * | 2008-04-03 | 2012-01-11 | 上海鸿得利重工股份有限公司 | 47-meter R-type foldable arm rack concrete pump truck and a producing method thereof |
| CN102328613A (en) * | 2011-06-23 | 2012-01-25 | 福建侨龙专用汽车有限公司 | Rescue vehicle for high-altitude water supply and drainage |
| CN101654075B (en) * | 2008-08-21 | 2012-06-27 | 上海鸿得利重工股份有限公司 | 22-meter RZ type folding arm support concrete pump truck |
| CN103015725A (en) * | 2012-12-05 | 2013-04-03 | 中联重科股份有限公司 | Boom hydraulic system, control method thereof, boom system and concrete pumping equipment |
| CN106660764A (en) * | 2014-06-04 | 2017-05-10 | 普茨迈斯特工程有限公司 | Mobile work machine, especially truck-mounted concrete pump comprising supports |
-
2004
- 2004-06-29 CN CN 200410025550 patent/CN1715651A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445559C (en) * | 2006-04-25 | 2008-12-24 | 上海鸿得利重工股份有限公司 | Sludge pump and its operation method |
| CN101550763B (en) * | 2008-04-03 | 2012-01-11 | 上海鸿得利重工股份有限公司 | 47-meter R-type foldable arm rack concrete pump truck and a producing method thereof |
| CN101654075B (en) * | 2008-08-21 | 2012-06-27 | 上海鸿得利重工股份有限公司 | 22-meter RZ type folding arm support concrete pump truck |
| WO2011116701A1 (en) * | 2010-03-26 | 2011-09-29 | 长沙中联重工科技发展股份有限公司 | Concrete distributing device with function of driving boom emergently and control method thereof |
| CN102328613A (en) * | 2011-06-23 | 2012-01-25 | 福建侨龙专用汽车有限公司 | Rescue vehicle for high-altitude water supply and drainage |
| CN103015725A (en) * | 2012-12-05 | 2013-04-03 | 中联重科股份有限公司 | Boom hydraulic system, control method thereof, boom system and concrete pumping equipment |
| CN103015725B (en) * | 2012-12-05 | 2015-03-18 | 中联重科股份有限公司 | Boom hydraulic system, control method thereof, boom system and concrete pumping equipment |
| CN106660764A (en) * | 2014-06-04 | 2017-05-10 | 普茨迈斯特工程有限公司 | Mobile work machine, especially truck-mounted concrete pump comprising supports |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |