CN101550763B - 47-meter R-type foldable arm rack concrete pump truck and a producing method thereof - Google Patents
47-meter R-type foldable arm rack concrete pump truck and a producing method thereof Download PDFInfo
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Abstract
The invention relates to a 47-meter R-type foldable arm rack concrete pump truck and a producing method thereof. The 47-meter R-type foldable arm rack concrete pump truck comprises an arm rack system,a power system, a pump sending system, an electric system and a hydraulic system. The 47-meter R-type foldable arm rack concrete pump truck is characterized in that the hydraulic system is provided w ith a hydraulic element used for checking actual workload transmission, a main oil pump is a variable inclined-disc type axial plunger piston pump, the hydraulic system uses a closed loop, a five-section rolling foldable arm rack is in fulcrum-type R-shaped fold, support legs are JJ-shaped double-swinging telescopic support legs, and a main oil cylinder is of a guiding-sleeve piston-rod sealing structure. The arm-rack system of the product of the invention is controlled by an electric-proportion multi-path valve and remotely controlled by a wireless remote control system. The arm rack oil cylinder has a bidirectional interlock function, effectively guarantees the work safety and the reliability of the arm rack and enables the intelligence of the whole system to be higher. The elements independently work and are not mutually interfered. The product of the invention has the characteristics of energy saving, high effect and low intelligence and worker labor intensity, and can be widely used in the projects of city building, bridges, foundation construction, and the like.
Description
Technical field
The present invention relates to a kind of arm-pump; Particularly disclose a kind of jib and adopt that fulcrum type " R " type is folding, the pumping vertical height reaches 47 meters concrete arm pump truck and production method thereof; Pump truck of the present invention can once be accomplished the conveying and the cloth operation of on-site concrete simultaneously, has that pump-conveying property is good, characteristics such as the cloth scope is big, walking voluntarily, maneuverability and convenient transfer.On the basis, multi-storey building construction and need frequently when shifting the building site, use 47 meters concrete mixers more can show its superiority, easy construction; In the jib the sphere of activities, can change the concreting position arbitrarily; Do not need interim at the scene tubing, can save the shop and help the time, improve work efficiency.Be specially adapted to that the concreting demand is big, the one-time-concreting and the high engineering of quality requirement of ultra-large volume and ultra thick base concrete.
Background technique
At present, in the concrete construction of national key construction project, all adopted the concrete pump truck pumping technology, its using scope has spreaded all in the engineerings such as water conservancy, water power, subway, bridge, large foundation, tall building and civil building.Become the first-selected type of pumping concrete construction machinery in recent years.
Concrete mixer can once be accomplished the conveying and the cloth operation of on-site concrete simultaneously, has that pump-conveying property is good, characteristics such as the cloth scope is big, walking voluntarily, maneuverability and convenient transfer.Especially on the basis, low layer construction and need frequently when shifting the building site, use concrete mixer more can show its superiority.Adopt its easy construction, in the jib the sphere of activities, can change the concreting position arbitrarily, do not need interim at the scene tubing, can save the shop and help the time, improve work efficiency.Be specially adapted to that the concreting demand is big, the one-time-concreting and the high engineering of quality requirement of ultra-large volume and ultra thick base concrete, the concreting of underground foundation at present has 80% to be accomplished by concrete mixer.Pump truck is generally 3 joint armed levers and 4 joint armed levers on the market, and pumping is highly limited, and job area is less, pumping side's quantity not sufficient, thus influenced working efficiency.This is longer with regard to a kind of boom of an urgent demand, rotates flexibly, and work area is wide, the pump truck that pumping capacity is high, mobility is strong.
Summary of the invention
The objective of the invention is to meet the need of market, solve long-armed concrete mixer and make a difficult problem, design the arm-type R type foldable arm rack concrete pump truck of a kind of 5 joints, disclose a kind of 47 meter R-type foldable arm rack concrete pump trucks and production method thereof.Because pumping vehicle arm rack is long more, just can promote height and the range of sending to more, pump truck of the present invention will promote construction quality and efficiency of construction significantly.
Pump truck is very high to balance and stability requirement; The lengthening jib never only is the simple increase of length; Behind the jib lengthening; The pump truck load increases thereupon, and all trickle increases all can have influence on the anti-oscillatory and the stationarity of whole pump truck, so must carry out across-the-board regulation, optimization to the pump truck overall structure.
The present invention is achieved in that a kind of 47 meter R-type foldable arm rack concrete pump trucks; Comprise boom system, power system, pumping system, electrical system and hydraulic system; It is characterized in that: said power system adopts engine in situ to drive transmission shaft through gearbox, links to each other with transfer case (PTO) flower keyboard again; The hydraulic-pressure pump that is positioned at transfer case (PTO) left side adopts screw to be connected with PTO; Hydraulic oil container and oil pump group; The oil pump group adopts sebific duct to be connected with valve piece, valve piece respectively with master cylinder, oscillating oil cylinder; Washing chamber and concrete cylinder, master cylinder and hopper adopt mechanical connection respectively, form the transfer unit of pumping system; Said hydraulic system adopts two main oil pump series connection; Main oil pump and electromagnetic valve group in current and master cylinder are connected to become major loop; At the main oil cylinder piston side commutation sensors that receives main oil cylinder piston bar commutation signal is set, the circuit of commutation sensors and main oil pump is connected with the PLC programmable controller respectively; Said boom system comprises the execution oil cylinder of jib oil pump, proportional control valve and band equilibrium valve auto-lock function; Said elements is through manual or the electric proportional control valve of Wireless remote control; Realize the switching of valve port; Control arm support oil cylinder, support oil cylinder and revolution motor, the stretching, extension of jib and supporting leg adopt the control of electro-hydraulic proportional multi-way valve; Described electrical system adopts programmable control method work; The power plant of said pumping system provide hydraulic pressure can drive master cylinder and move, and it is flexible together that master cylinder drives conveyor piston, and the concrete in the hopper is back and forth released or suction concrete cylinder, are pressed onto the discharge port of hopper through the oscillating oil cylinder reciprocating reversing; Said hydraulic system adopts the work of switching-over CER method; When the main oil cylinder piston bar will be withdrawn into the oil cylinder bottom, through the commutation signal of switching-over inductor detection main oil cylinder piston bar, the switching-over inductor was passed to the PLC programmable controller with commutation signal; PLC programmable controller output order; Reduce the proportional electromagnetic valve electric current output in the main oil pump loop, thereby reduce the main oil pump output quantity, guarantee that main oil return switching-over transient peak pressure is lower than 1.8Mpa.
Described main oil pump adopts the variable cam-type axial piston pump; Comprise proportional electromagnetic valve, piston cylinder and swash plate, the circuit of said elements is parallel with one another, and proportional electromagnetic valve spool right-hand member is provided with spring; Be provided with piston rod in the piston cylinder, adopt mechanical connection between piston rod and swash plate.
Said jib adopts fulcrum type " R " type folding, and the pumping vertical height reaches 47 meters.
Real work load when described axial piston pump is worked according to jib is adjusted swashplate angle automatically, to satisfy the actual flow of going up the dress jib, the heating of dress part hydraulic system in the minimizing.
Described supporting leg adopts the moving telescopic outrigger of " JJ " type double pendulum.
A kind of production method of 47 meter R-type foldable arm rack concrete pump trucks is characterized in that:
1, design load sensing hydraulic system function makes complete machine intelligent, reaches energy-conservation and compares reasonable request with power match.
The engine running oil pump promptly begins proper functioning, like no real work load; Then the oil pump idle work is wasted power, so key technology lets oil pump turn round exactly, power consumption is close to zero; The present invention's installation and measuring real work load in system passes the hydraulic element that carry; Design is provided with the secondary shuttle valve in electric proportional control valve (being multiple directional control valve), through the load-transducing function, measure real work load.Main oil pump adopts the variable cam-type axial piston pump, and its function is responsible for to multi-way valve fluid dynamic being provided, and load signal feeds back to main oil pump signal hydraulic fluid port through oil pipe; When actual load increase, minimizing or no-load; The main oil pump swash plate is according to transducing signal, and oil pressure reduces, increases swashplate angle automatically, to satisfy the required flow of actual load; Reach energy-conservation requirement, and
Obviously reduce the heating of hydraulic system.
2, hydraulic system adopts closed circuit, and the main pump discharge capacity makes zero during switching-over.
Main pump send oil circuit to adopt double pump, double loop closed type hydraulic system, and flow arrives the increase process then through being decreased to make zero during the main oil pump switching-over, has reduced main oil pump greatly and has sent hydraulic shock and energy loss in system's commutation process, makes jib work more steadily reliable.
3, adopt five joint convolution boom type structures, material is a high tensile steel, and box-structure is in light weight, and strength and stiffness are good, and are safe and reliable.
Product pumping vertical height of the present invention can reach 47 meters, is made up of 5 joint armed levers, and its material adopts import WELDOX-700 steel plate, and the structure weight of armed lever is lighter than before, and profile is more attractive in appearance.Welding wire and machining to welding also have quite high requirement.The two ends axis parallel degree can not surpass 0.1mm; The both ends of the surface that are connected between armed lever and the armed lever, degree of symmetry can not surpass 0.25mm, and the coaxality of the oil cylinder strong point can not surpass 0.1mm; Adopt special tooling in order to reach above-mentioned designing requirement, reduce the distortion of welding back both ends of the surface and support.The machining frock is undergone technological transformation, adopt made up frock technology, solve the oil cylinder supporting base after boring processing, the coaxality of mounting hole, a parallelism difficult problem.
4, improve the pumping working life of crucial easily damaged parts.
Main easily damaged parts glasses plate in the complete machine, cutting ring are to improve the key in pumping life-span, and the glasses plate pumping life-span is generally at 1.5 ten thousand～20,000 M3.Product of the present invention makes its pumping life-span reach 30,000 sides, has improved product reliability, satisfies export requirement.
5, promote the basic part scientific and technological content.
All kinds of nonstandard hydraulic jack and combined oil cylinder that product of the present invention uses, basic part has plunger case and piston cylinder by the purposes branch; By the structure branch; Pull bar oil cylinder and welding oil cylinder are arranged; Length reaches 3000mm, and design all has higher precision and technological requirement to cylinder bucket diameter for
.The cylinder body size error is controlled at ± 0.03mm; In the whole stroke; The cylinder ERROR CONTROL is in
, and the cylinder diameter size error is at ± 0.03mm, and its chrome-faced layer hardness requirement reaches HV800; All kinds of oil cylinder frequency of okperation are high; Applying working condition is abominable, has designed soft, hard two kinds of sealing combination technologies, guarantees the multiple tracks alloy cast iron piston ring of wear resistance that is:; Guarantee the OK soft seal of good seal performance.Duck in drink for a long time to main oil cylinder piston, designed unique guide pin bushing piston rod seal, make it guarantee good nothing leakage sealing.
How hydraulic oil being introduced in the guide pin bushing combination seal is creation point of the present invention, its critical process, and promptly the processing technology thereof of guide pin bushing is following:
Must process four inclined holes to oil cylinder working-pressure oil zone on the guide pin bushing: (1) is beaten the position of inclined hole earlier at guide pin bushing, process half-arc groove with common driller, and the diameter of arc groove equates with oblique hole diameter, plays the role of positioning; (2) milling machine adopts frock clamping to accomplish the drilling operating of oblique aperture.
The present invention accords with the demands of the market, and around intellectuality, high reliability, requirement cheaply, in state key, difficult point engineering construction, has brought into play significant role, has obtained remarkable social benefit and economic benefit.
Pump truck of the present invention has following characteristics:
1, the pumps hydraulic system adopts closed circuit; The main pump discharge capacity makes zero during switching-over, and its pumping impulse ratio open system is little by 20%, and the hydraulic oil liquid turbidity test are high, the oil temperature is low; Improved hydraulic system jib stability to greatest extent, prolonged element and adopt closed system working life;
2, design of Hydraulic System load sensing function realizes that complete machine is intelligent, and uses switching-over CER technology, reduces the hydraulic shock that switching-over produces to greatest extent, reaches energy-conservation and compares reasonable request with power match;
3, mechanical-electrical-hydraulic integration, car load move and switch intelligent with pumping;
4, fulcrum type " R " type is folding on the jib, and node rotates flexibly, exercises steadily, can satisfy the special operation condition requirement;
5, adopt the moving telescopic outrigger of " JJ " type double pendulum, the expansion space is little, and boundary of works area is wide, and the pumping height can reach 47 meters, conveying side amount 145m3/h, and working stroke 2100mm effectively reduces commutating frequency, reduces system thermal.
6, rolling bearing type revolution is supported, and the jib revolution is driven by hydraulic motor and gear reducer, can 365 ° of revolutions, and revolution is steady;
7, adopt long stroke oil cylinder, can satisfy the concrete requirement of the big discharge capacity of output, reduced the switching-over number of times again, improved the working life of easily damaged partss such as wearing plate;
Product boom system of the present invention adopts electric proportional multi-path valve control, wireless remote-control system remote control.Arm support oil cylinder has two-way interlocking function, effectively guarantees the jib job security, reliability, and make the intelligent degree of whole system higher.Work alone between each element, do not interfere with each other.Product structure spare stress distribution of the present invention is reasonable; Improved reliability and fatigue resistance, main system adopts double pump interflow technology, and the master cylinder motion is stronger; Improve the concrete quantity delivered; Oscillation system partly installs accumulator apparatus additional, the swing of S valve body is more put in place, and effectively absorb cylinder body system shock on earth.
Below in conjunction with accompanying drawing the present invention is described further.
Description of drawings
Fig. 1 is a boom system motion diagram plan view of the present invention;
Fig. 2 is a pumping system power plant plan view of the present invention;
Fig. 3 is a pumping system transfer unit plan view of the present invention;
Fig. 4 is the moving support leg device plan view of JJ type double pendulum of the present invention;
Fig. 5 is a working principle skeleton diagram of the present invention.
Embodiment
The present invention's 47 meter R-type foldable arm rack concrete pump trucks mainly are divided into four major parts with regard to its structure and performance: boom system, pumping system, hydraulic system and electrical system.
Jib hydraulic system oil pump of the present invention adopts the axial piston pump of load-transducing variable, and the real work load in the time of can working according to jib is adjusted swashplate angle automatically, to satisfy the actual flow of going up the dress jib, the heating of dress part hydraulic system in the minimizing.Electrical system adopts the PLC programmable control system, the man-machine interface wireless remote controller, and operation is reliable more, safety, has prolonged time between failures.The pumps hydraulic system is provided with main oil pump pressure cut off and safety valve double security device, effectively raises the reliability of complete machine.
The present invention is an example with HDL5400THB type arm-pump.
According to accompanying drawing 1,2, the present invention adopts 5 joints to bend and stretch armed lever, and " R " type is collapsible, and rolling bearing type revolution is supported, and the jib revolution is driven by hydraulic motor and gear reducer, can 365 ° of revolutions, and revolution is steadily.To boom system hydraulic energy is provided by power plant, and passes through the switching of electrical equipment control jib multi-way valve.Power plant are connected through hydraulic pipe line with boom system.Hydraulic pressure can be controlled opening and drawing in of the revolution of turntable, every joint arm through the switching of jib multi-way valve.Can control jib actuation time through the flow opening of regulating multi-way valve, every joint arm oil cylinder rodless cavity is opened, and rod chamber is regained, and guarantees enough pressure expansion jibs.And oil inlet and outlet is a bidirectional hydraulic lock, and during working state, two cavity oil mouth hydraulic lock is shut, and has only when the rodless cavity oil-feed, at first backs down the one-way valve of the return opening of rod chamber through the hydraulic lock oil pressure, and return opening is opened, and makes fluid flow back to fuel tank.When the rodless cavity fuel cut-off, oil back chamber is shut by hydraulic lock, and two chambeies keep sealing state again.Accurately controlled the action of oil cylinder.The present invention has effectively guaranteed jib work high reliability, Security, operability.According to accompanying drawing 4,, control front and back two supporting legs through the supporting leg control valve through the switching of jib multi-way valve; The amplitude of oscillating oil cylinder control supporting leg swing; Cross cylinder control supporting leg level is drawn back, and vertical oil cylinder control supporting leg is flexible, and four supporting legs " JJ " type is launched.The present invention can swing to the arbitrary position in order to satisfy working condition requirement with supporting leg in narrow and small relatively building site, stable, reliable supporting car load.
According to accompanying drawing 2,3, the boom system of product of the present invention, pumping system and power plant are relatively independent, between adopt hydraulic pipe line to connect.The power plant of forming arm-pump by engine in situ 1, gearbox 2, transmission shaft 3, transfer case (PTO) 4 through mechanical connection.The pumping system of forming 47 meters arm-pumps by hopper 5, S pipe 6, pendulum fork 7, conveying cylinder 8, washing chamber 9, master cylinder 10 through mechanical connection.Power plant provide hydraulic energy and pass through the operation that electric system is controlled pumping system to pumping system.Power plant are done toward complex line through the master cylinder 10 of hydraulic system and electric system control pumping system and are pushed and draw back motion; The conveyor piston 9 that master cylinder 10 drives mechanical connection pushes together and draws back; Make the concrete in the hopper 5 be inhaled into concrete cylinder 8, simultaneously the concrete in the opposite side concrete cylinder is transported to discharge port through S pipe distributing valve.Oscillating oil cylinder 7 drives S pipe distributing valve and the action of master cylinder 10 synchronous coordinations through mechanical connection.So reciprocation cycle action, the concrete in the hopper 5 is transported to the discharging quarrel continuously.Between washing chamber 9 and hopper 5, guaranteed that with the pull bar connection intensity is several firm.Hopper 5 adopts the streamline design, improves the suction property of concrete cylinder 8.The present invention designs and has solved the pumping system power source, and the power taking engine in situ has reduced the cost of complete machine, through operator cabin control, can realize that the chassis exercises the purpose of switching with the pumping state, reaches intelligent and controls.
According to accompanying drawing 5, (arrow points is the mobile direction of hydraulic oil), it is power source that the present invention adopts engine in situ, switches the enforcement and the pumping state of control car load through PTO.Boom system is accomplished opening and drawing in of jib action and supporting leg through jib multi-way valve switching controls jib and supporting leg.Pumping system satisfies the action of long stroke oil cylinder through two main oil pump interflow, thereby reduces the switching-over number of times, reduces the system oil temperature.
That product of the present invention has is energy-conservation, efficient, intelligence and the low characteristics of labor strength, is widely used in the projects such as urban architecture, bridge, foundation construction.
Claims (6)
1. meter R-type foldable arm rack concrete pump truck; Comprise boom system, power system, pumping system, electrical system and hydraulic system; It is characterized in that: said power system adopts engine in situ to drive transmission shaft through gearbox, links to each other with transfer case (PTO) flower keyboard again, forms the pumping installations of pumping system; The oil pump group that is positioned at transfer case (PTO) left side adopts screw to be connected with transfer case (PTO); Hydraulic oil container respectively adopts sebific duct to be connected with oil pump group, valve piece with master cylinder, oscillating oil cylinder with oil pump group, valve piece, and washing chamber and concrete cylinder, master cylinder and hopper adopt mechanical connection respectively, forms the transfer unit of pumping system; Said hydraulic system adopts two main oil pump series connection; Main oil pump and electromagnetic valve group in current and master cylinder are connected to become major loop; At the main oil cylinder piston side commutation sensors that receives main oil cylinder piston bar commutation signal is set, the circuit of commutation sensors and main oil pump is connected with the PLC programmable controller respectively; Said boom system comprises the execution oil cylinder of jib oil pump, proportional control valve and band equilibrium valve auto-lock function; Said jib oil pump adopts the axial piston pump of load-transducing variable; Said elements is through manual or the electric proportional control valve of Wireless remote control; Realize the switching of valve port, control arm support oil cylinder, support oil cylinder and revolution motor, the control of electro-hydraulic proportional multi-way valve is adopted in the stretching, extension of jib and supporting leg; Described electrical system adopts programmable control method work; The power plant of said pumping system provide hydraulic pressure can drive the master cylinder motion, and it is flexible together that master cylinder drives conveyor piston, the concrete in the hopper are back and forth released or are sucked carry cylinder, are pressed onto the discharge port of hopper through the oscillating oil cylinder reciprocating reversing; Said hydraulic system adopts switching-over adjustment output discharge capacity automatically; When the main oil cylinder piston bar will be withdrawn into the bottom, through the commutation signal of commutation sensors detection main oil cylinder piston bar, commutation sensors was passed to the PLC programmable controller with commutation signal; PLC programmable controller output order; Reduce the proportional electromagnetic valve electric current output in the major loop, thereby reduce the main oil pump output quantity, guarantee that main oil return switching-over transient peak pressure is lower than 1.8Mpa.
2. a kind of 47 meter R-type foldable arm rack concrete pump trucks according to claim 1; It is characterized in that: described main oil pump adopts the variable cam-type axial piston pump; Comprise proportional electromagnetic valve, piston cylinder and swash plate, the circuit of said elements is parallel with one another, and proportional electromagnetic valve spool right-hand member is provided with spring; Be provided with piston rod in the piston cylinder, adopt mechanical connection between piston rod and swash plate.
3. a kind of 47 meter R-type foldable arm rack concrete pump trucks according to claim 1 is characterized in that: said jib adopts fulcrum type " R " type folding, and the pumping vertical height reaches 47 meters.
4. a kind of 47 meter R-type foldable arm rack concrete pump trucks according to claim 1 is characterized in that: described supporting leg adopts the moving telescopic outrigger of " JJ " type double pendulum.
5. the production method of any said 47 meter R-type foldable arm rack concrete pump trucks in the claim 1～4 is characterized in that:
A) design of Hydraulic System load sensing function, the installation and measuring real work load passes the hydraulic element that carry in hydraulic system, realizes that complete machine is intelligent, reaches energy-conservation and requires with the power match ratio; The engine running oil pump promptly begins proper functioning; During no real work load, the hydraulic-pressure pump discharge capacity makes zero; In said electric proportional control valve, be provided with the secondary shuttle valve,, measure real work load through the load-transducing function; Main oil pump is the variable cam-type axial piston pump, to multi-way valve fluid dynamic is provided, and load signal feeds back to main oil pump signal hydraulic fluid port through oil pipe; When actual load increase, minimizing or no-load; The main oil pump swash plate is according to transducing signal, and oil pressure reduces, increases swashplate angle automatically, to satisfy the required flow of actual load; Reach energy-conservation requirement, and reduce the heating of hydraulic system;
B) hydraulic system adopts closed circuit, and the main pump discharge capacity makes zero during switching-over; Main pump send oil circuit to adopt double pump, double loop closed type hydraulic system, and flow arrives the increase process then through being decreased to make zero during the main oil pump switching-over, has reduced hydraulic shock and energy loss in the pumping system commutation process, and jib work is more steadily reliable;
C) adopt five joint convolution boom type structures, the pumping vertical height reaches 47 meters, and material adopts import WELDOX-700 high-strength steel sheet, is designed to box-structure; The two ends axis parallel degree is less than or equal to 0.1mm, the both ends of the surface that are connected between jib and the jib, and degree of symmetry is less than or equal to 0.25mm, and the coaxality of the oil cylinder strong point is less than or equal to 0.1mm; The machining frock adopts made up frock technology;
D) improve the main easily damaged parts glasses plate of pump truck, the pumping life-span of cutting ring, make its pumping life-span reach 30,000 sides, improve product reliability;
E) all kinds of nonstandard hydraulic jack and the combined oil cylinder of pump truck; Length reaches 3000mm; Cylinder bucket diameter is
; The cylinder body size error is controlled at ± 0.03mm; In the whole stroke; The cylinder ERROR CONTROL is in
, and the cylinder diameter size error is at ± 0.03mm, and its chrome-faced layer hardness requirement reaches HV800; Adopt two kinds of sealings of OK soft seal and the hard sealing of the multiple tracks alloy cast iron piston ring that guarantees wear resistance of good seal performance technology that combines; Master cylinder adopts the guide pin bushing piston rod seal, has guaranteed good nothing leakage sealing.
6. the production method of a kind of 47 meter R-type foldable arm rack concrete pump trucks according to claim 5 is characterized in that: must process four inclined holes to oil cylinder working-pressure oil zone on the guide pin bushing, its process step is following:
A) beat earlier the position of inclined hole at guide pin bushing, process half-arc groove with common driller, the diameter of arc groove equates with oblique hole diameter, plays the role of positioning;
B) milling machine adopts frock clamping to accomplish the drilling operating of oblique aperture.
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| WO2013026189A1 (en) * | 2011-08-19 | 2013-02-28 | 长沙中联重工科技发展股份有限公司 | Concrete pump truck and hydraulic control system thereof |
| CN102677905A (en) * | 2012-05-30 | 2012-09-19 | 上海鸿得利重工股份有限公司 | 48m 5RZ type positive folding arm frame concrete pump truck and manufacturing method thereof |
| CN102880145B (en) * | 2012-09-28 | 2016-02-03 | 三一汽车制造有限公司 | leg control system and engineering machinery |
| CN104594637A (en) * | 2013-11-06 | 2015-05-06 | 浙江信瑞重工科技有限公司 | Novel concrete distributing cart |
| CN105857259B (en) * | 2016-05-05 | 2018-09-21 | 北汽福田汽车股份有限公司 | A kind of pump truck and its two-flow cleaning system |
| CN112324143A (en) * | 2020-11-14 | 2021-02-05 | 深圳市罗湖建筑安装工程有限公司 | Concrete pouring construction equipment and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19850009A1 (en) * | 1998-09-28 | 2000-03-30 | Putzmeister Ag | Truck-mounted concrete pump |
| DE20119806U1 (en) * | 2001-09-15 | 2002-03-28 | Tbg Transportbeton Rheinhessen | Truck-mounted concrete pump |
| CN2550207Y (en) * | 2002-06-28 | 2003-05-14 | 邓业祥 | Arm type concrete pump trailer |
| CN2658293Y (en) * | 2003-11-18 | 2004-11-24 | 湖南久润机械有限公司 | Concret pumping vehicle with folding traction arm support, pumping system, power system on semitrailer chassis |
| CN1715651A (en) * | 2004-06-29 | 2006-01-04 | 上海鸿得利机械制造有限公司 | Cantilever crane type concrete transport pump |
| CN200943316Y (en) * | 2006-03-06 | 2007-09-05 | 长沙中联重工科技发展股份有限公司 | Concrete pump-delivery distribution vehicle |
| CN201172967Y (en) * | 2008-04-03 | 2008-12-31 | 上海鸿得利重工股份有限公司 | 47m R-shaped folding arm support concrete pump truck |
-
2008
- 2008-04-03 CN CN2008100432211A patent/CN101550763B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19850009A1 (en) * | 1998-09-28 | 2000-03-30 | Putzmeister Ag | Truck-mounted concrete pump |
| DE20119806U1 (en) * | 2001-09-15 | 2002-03-28 | Tbg Transportbeton Rheinhessen | Truck-mounted concrete pump |
| CN2550207Y (en) * | 2002-06-28 | 2003-05-14 | 邓业祥 | Arm type concrete pump trailer |
| CN2658293Y (en) * | 2003-11-18 | 2004-11-24 | 湖南久润机械有限公司 | Concret pumping vehicle with folding traction arm support, pumping system, power system on semitrailer chassis |
| CN1715651A (en) * | 2004-06-29 | 2006-01-04 | 上海鸿得利机械制造有限公司 | Cantilever crane type concrete transport pump |
| CN200943316Y (en) * | 2006-03-06 | 2007-09-05 | 长沙中联重工科技发展股份有限公司 | Concrete pump-delivery distribution vehicle |
| CN201172967Y (en) * | 2008-04-03 | 2008-12-31 | 上海鸿得利重工股份有限公司 | 47m R-shaped folding arm support concrete pump truck |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-355338A 2001.12.26 |
| JP特开平9-328900A 1997.12.22 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101550763A (en) | 2009-10-07 |
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Application publication date: 20091007 Assignee: JIANGSU HONGDELI MACHINERY Co.,Ltd. Assignor: SHANGHAI HOLD HEAVY INDUSTRY Co.,Ltd. Contract record no.: 2014310000097 Denomination of invention: 47-meter R-type foldable arm rack concrete pump truck and a producing method thereof Granted publication date: 20120111 License type: Exclusive License Record date: 20140523 |
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