WO2012034425A1 - 一种泵送机械 - Google Patents

一种泵送机械 Download PDF

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Publication number
WO2012034425A1
WO2012034425A1 PCT/CN2011/075724 CN2011075724W WO2012034425A1 WO 2012034425 A1 WO2012034425 A1 WO 2012034425A1 CN 2011075724 W CN2011075724 W CN 2011075724W WO 2012034425 A1 WO2012034425 A1 WO 2012034425A1
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WO
WIPO (PCT)
Prior art keywords
rod
hopper
pumping
chassis
hinge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/075724
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English (en)
French (fr)
Inventor
易秀明
张春光
董旭辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
Original Assignee
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Sany Intelligent Control Equipment Co Ltd, Sany Heavy Industry Co Ltd filed Critical Hunan Sany Intelligent Control Equipment Co Ltd
Publication of WO2012034425A1 publication Critical patent/WO2012034425A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve

Definitions

  • the present invention relates to a pumping technique for pumping viscous materials such as concrete, and more particularly to a pumping machine.
  • pumping machinery includes a pumping system and a chassis.
  • the pumping system is used to pump materials such as concrete to the outside.
  • the undercarriage is used to carry the pumping system, and for the mobile pumping machinery, it also has a corresponding driving mechanism to facilitate the transition between different working locations.
  • FIG. 1 is a schematic structural view of a pumping system in the prior art.
  • the pumping system includes a pumping power unit 10 and a hopper 20, and the pumping power unit 10 provides power for pumping, including a main cylinder 11 connected to the tank, a water tank 12 and a conveying cylinder 13; the water tank 12 is connected to the main oil rainbow 11 and the conveying cylinder 13.
  • the delivery cylinder 13 is connected to the hopper 20; the hopper 20 has a dispensing valve, a swinging mechanism and a suitable agitating mechanism.
  • the swinging mechanism drives the dispensing valve to reciprocate; in a predetermined first period of time, one of the delivery cylinders 13 is in communication with the hopper 20, and the other delivery cylinder 13 is in communication with the distribution valve; the two main cylinders 11 are respectively driven
  • the two delivery cylinders 13 operate to contract the helium piston of one of the delivery cylinders 13, draw concrete from the hopper 20, and extend the piston of the other delivery cylinder 13 to pump concrete outward through the distribution valve.
  • the reciprocating motion of the internal pistons of the two delivery cylinders 13 drives the concrete to flow along a predetermined delivery conduit to transport the concrete to a predetermined location.
  • the pumping system and the chassis are fixedly connected to form a rigid connection. Due to the machining error of the pumping system, there is usually a certain dimensional error in the installation part of the pumping system; therefore, in order to improve the assembly efficiency and facilitate the assembly of the pumping machine, the pumping system and the chassis are currently mainly used by means of welding. Fixedly connected. Although the current rigid connection can meet the needs of the normal operation of the pumping machinery, it also has the following shortcomings:
  • the swinging mechanism, the distribution valve, the main cylinder and the conveying cylinder of the pumping system reciprocate, and concrete or other materials flow in a discontinuous manner; this leads to a strong pumping system. Vibration and shock. Due to the rigid connection between the pumping system and the undercarriage, the vibration and shock of the pumping system are transmitted to the undercarriage of the pumping machinery, which in turn affects the performance and service life of the undercarriage and its components.
  • the pumping machine is a pump truck including a boom
  • the boom since the boom is a long rod-shaped structure, the boom will amplify the vibration, causing a large amplitude of vibration at the end of the boom, which affects the position control of the material conveying.
  • the pumping system is connected to the chassis through a plurality of rigid connection points; a plurality of rigid connection points are liable to cause over-positioning of the pumping system, causing deformation of the pumping system, thereby changing the corresponding pistons in the main cylinder and the delivery cylinder.
  • the cylinder mating relationship not only affects the pumping efficiency and pumping pressure, but also causes the piston, especially the piston in the pumping cylinder, to wear out and shorten the service life of the pumping system. Summary of the invention
  • the present invention provides a pumping machine comprising a pumping system and a chassis, the pumping system comprising a pumping power device and a hopper, further comprising an elastic buffering mechanism and a connecting rod; the elastic buffering mechanism and the hopper and One of the chassis is fixedly connected to form a fixed connection point, and is hingedly connected to the other to form a hinge connection point; the fixed connection point has a predetermined distance from the hinge connection point;
  • the pumping power unit is hingedly connected to the underframe.
  • the chassis further includes a hopper hanger, the hopper hanger includes a hanging substrate and two hanging panels extending from the side of the hanging substrate in the same direction, the hanging substrate The end faces of the beams of the chassis are fixed, and the outer ends of the two hanging plates are hingedly connected to the elastic buffer mechanism to form the hinge connection points.
  • the elastic buffer mechanism comprises a bending elastic frame
  • the bending elastic frame comprises a first rod and a second rod forming a predetermined angle between the extending directions, the inner end of the first rod and the second rod Rod The inner ends are fixedly connected;
  • the outer end of the first rod is hingedly connected to the bottom frame, and the outer end of the second rod is fixedly connected with the hopper; or the outer end of the first rod is fixedly connected with the bottom frame, and the outer end of the second rod The end is hingedly connected to the hopper.
  • an obtuse angle is formed between the first rod and the second rod extending direction; the second rod extends horizontally, and the outer end thereof is connected to the hopper.
  • the outer end of the second rod is fixedly connected with the rear wall panel of the hopper to form a fixed connection point; and the second rod is fixed to the swing valve mounting substrate of the hopper.
  • the elastic buffer mechanism comprises an articulated rod and an elastic member, and the two ends of the hinge rod are respectively hingedly connected to the chassis and the hopper;
  • the elastic member is located between the hinge rod and the bottom frame, so that the joint between the hinge rod and the chassis forms the fixed connection point, and the joint of the hinge rod and the hopper forms the hinge connection point; or, the elasticity
  • the component is located between the hinge rod and the hopper such that the joint of the hinge rod and the hopper forms the fixed connection point, and the joint of the hinge rod and the chassis forms the hinge connection point.
  • the elastic component is a spring; or a piston telescopic assembly, the piston telescopic assembly includes a cylinder, a piston engaged with the cylinder, and a return spring between the cylinder and the piston; or a hydraulic cylinder A return spring is disposed between the cylinder of the hydraulic cylinder and the piston, and a throttle valve is connected in series in the hydraulic oil passage between the rod chamber and the rodless chamber of the hydraulic cylinder.
  • the elastic buffer mechanism comprises a transverse rod, a longitudinal rod and an elastic member; the longitudinal rod is slidably engaged with the transverse rod, and the sliding direction of the longitudinal rod relative to the transverse rod and the extension of the longitudinal rod The directions are parallel; the two ends of the elastic member are respectively supported or connected between the transverse rod and the longitudinal rod;
  • the transverse rod is hingedly connected to the base frame, the longitudinal rod is fixedly connected to the hopper, or the transverse rod is hingedly connected to the hopper, and the longitudinal rod is fixedly connected with the bottom frame.
  • the chassis includes two fixing bases;
  • the fixing base includes two supporting plates extending in parallel, a substrate connecting one ends of the two supporting plates, and a fixing plate connecting the other ends of the two supporting plates, the substrate Fixing with the beam of the chassis; one end of the connecting rod is hingedly connected to the fixing plate of the fixing base.
  • connection is connected to a water tank in the pumping power unit.
  • a line connecting the two ends of the connecting rod forms a sharp angle with the direction of gravity.
  • the pumping system is connected to the chassis through the connecting rod and the elastic buffering mechanism; the two ends of the connecting rod are respectively hingedly connected with the chassis and the pumping power device; the elastic buffer mechanism It is fixed on the chassis or the hopper, and is hinged with the hopper or the underframe to form a fixed connection point and a hinge connection point on the elastic buffer mechanism, and a predetermined distance between the fixed connection point and the hinge connection point.
  • the connection position between the pumping system and the undercarriage forms a three-hinged structure with three hinge points, which form a stable triangular structure.
  • the three-hinged structure ensures stability between the pumping system and the undercarriage when pumping the machine for pumping.
  • the vibration generated by the pumping system causes the connecting rod to oscillate relative to the chassis, thus reducing the vibration transmitted to the chassis through the connecting position; meanwhile, the swinging of the connecting rod will generate vibration and impact force when the pumping system operates. Passed to the elastic buffer mechanism.
  • the elastic buffer mechanism can generate a predetermined elastic deformation, which changes the positional relationship between the fixed connection point and the hinge connection point, thereby absorbing the vibration generated by the pumping system and Impact, the impact of the buffer hopper on the chassis.
  • the hinge structure can automatically adapt to the positional relationship between the pumping power device and the chassis, and between the hopper and the chassis,
  • the hopper can be conveniently mounted on the chassis through the elastic buffer mechanism, and the pumping power device can be conveniently mounted on the chassis through the connecting rod; this can not only avoid or reduce the over-positioning of the pumping system, but also can pass
  • the disassembled structure facilitates assembly of the pumping system with the chassis.
  • the elastic buffer mechanism comprises a bent elastic frame, which realizes the purpose of absorbing energy, buffering vibration and impact, and ensuring connection reliability by bending elastic deformation of the elastic frame; the structure has a structural tube, High reliability and adaptability.
  • the elastic buffer mechanism is connected to the water tank in the pumping power device; relative to the main oil cylinder and the transport cylinder, the support point of the pumping power device is small due to the small vibration of the water tank itself Located on the water tank, it can reduce the frequency of the elastic buffer mechanism and improve the service life and stability of the elastic buffer mechanism.
  • FIG. 1 is a schematic structural view of a pumping system in the prior art
  • FIG. 2 is a schematic view showing the overall structure of a pump truck provided by the present invention
  • Figure 3 is a schematic view showing the connection structure of the chassis and the pumping system in the pump truck shown in Figure 2;
  • Figure 4 is an enlarged view of a portion I-I of Figure 3;
  • Figure 5 is a schematic view showing the structure of the fixing base in Figure 3;
  • Figure 6 is a perspective view showing the structure of the water tank of the pumping system of Figure 3;
  • Figure 7 is a perspective view showing the three-dimensional structure of the hopper in the pumping system shown in Figure 3;
  • Figure 8 is a view taken along line A in Figure 7;
  • Figure 9 is an enlarged view of the ⁇ - ⁇ portion of Figure 3.
  • Figure 10 is a perspective view showing a connection structure of a pumping system and a chassis portion in a pump truck provided by the present invention
  • Figure 11 is a structural view of another elastic buffer mechanism in the pumping machine provided by the present invention
  • a structural schematic diagram of another elastic buffer mechanism is provided in the pumping machine provided by the present invention.
  • the fixed connection point and the hinge connection point are the barrel names of the connection positions; and the fixed connection points are connection positions having a larger rigidity than the hinge connection points.
  • FIG. 2 is a schematic view showing the overall structure of a pump truck provided by the present invention
  • FIG. 3 is a schematic view showing the connection structure of the chassis and the pumping system in the pump truck shown in FIG.
  • the pump truck includes a chassis 100 and a pumping system 200; the pumping system 200 includes a main cylinder 210, a water tank 220, a delivery cylinder 230, and a hopper 240 that are sequentially connected, wherein the main cylinder 210, the water tank 220, and the delivery cylinder 230 form the pump
  • the pumping power unit of the delivery system powers the material pumping.
  • the pump truck also includes a bent elastic frame 400 and a connecting rod 300.
  • FIG. 4 is an enlarged view of a portion II of FIG. 3, and FIG. 5 is a solid view of FIG. Schematic diagram of the structure of the seat.
  • the chassis 100 includes a beam 110 and two fixing seats 121.
  • the fixing base 121 further includes two supporting plates 1211 extending in parallel upwards, a substrate 1212 connecting the lower ends of the two supporting plates 1211, and two supporting plates 1211.
  • the upper end fixing plate 1213; the base plate 1212 and the beam 110 are fixed by fasteners.
  • the two support plates 1211 have a predetermined distance therebetween.
  • a hinge rod 122 is further disposed between the two fixing bases 121.
  • the two ends of the hinge rod 122 are respectively supported on the fixing plates 1213 of the two fixing bases 121.
  • a cover plate 1214 is further disposed on the fixing plate 1213; the cover plate 1214 and the fixing plate 1213 are fixedly connected by fasteners, and the ends of the hinge rods 122 are clamped to make the hinge rods
  • the two ends of the 122 are fixedly connected to the chassis 100 respectively.
  • the specific connection between the fixing plate 123 and the hinge rod 122 can be selected according to actual needs.
  • Figure 6 is a three-dimensional structure diagram of the water tank of the pumping system in Figure 3.
  • the side of the wall panel of the water tank 220 is formed with two water tank ears 221 extending upward.
  • the water tank lug 221 may be integral with the rear wall panel, or the water tank lug 221 may be fixed to the rear wall panel of the water tank 220 by other means.
  • the front and rear sides of the water tank 220 are respectively connected to the transport cylinder 230 and the main oil cylinder 210, and the two water tank ears 221 are hingedly connected to one end of the connecting rod 300; the other end of the connecting rod 300 passes through the hinge rod 122 and the fixed seat 121.
  • the fixing plates 1213 are hingedly connected.
  • the water tank 220 and the underframe 100 are hingedly connected by a connecting rod 300.
  • the manner in which the connecting rod 300 and the underframe 100 are hingedly connected is not limited to the above manner, and the two fixing plates 1213 are respectively hingedly connected to the two ends of the hinge rod 122, and one end of the connecting rod 300 and the hinge rod 122 are connected. Fixedly connected, the connecting rod 300 end can also be hingedly connected to the fixed plate 1213 or the cross member 110 of the underframe 100.
  • FIG. 7 is a perspective view of the hopper of the pumping system of FIG. 3, and FIG. 8 is a view of the arrow A of FIG.
  • the hopper 240 includes two pairs of symmetrical elastic frames 400 that are bilaterally symmetrical; the bent elastic frame 400 includes a first rod 410 and a second rod 420 that form a predetermined angle between the extending directions, the inner end of the first rod 410 and the first The inner ends of the two rods 420 are fixedly joined to form a bent rod-like structure having a predetermined elasticity.
  • the outer end of the second rod 420 is fixed to the rear wall panel of the hopper 240 to form a fixed joint; meanwhile, the upper side of the second rod 420 is fixed to the laterally extending swing valve mounting substrate 242.
  • the upper side of the second rod 420 is fixed to the swing valve mounting substrate 242, and can function to strengthen the strength of the swing valve mounting substrate 242. Therefore, it is not necessary to separately provide a reinforcing plate or reinforcement.
  • the ribs ensure the strength of the swing valve mounting substrate 242.
  • the pair of bent elastic frames 400 also have a predetermined distance between them to increase the joint strength.
  • the chassis 100 further includes a hopper hanger 130.
  • the hopper hanger 130 includes a hanging substrate 131 and two hanging plates 132 extending from the side of the hanging substrate 131 in the same direction, and the substrate 131 is suspended. It is fixed to the end surface of the beam 110.
  • the outer ends of the two hanging panels 132 are simultaneously hinged to the outer ends of the two first rods 410 by hinged shafts to form hinged joints.
  • the two suspension panels 132 have a predetermined distance therebetween.
  • the hinged connection point of the bending elastic frame 400 has a predetermined distance from the fixed connection point; when subjected to vibration or impact force, the relative positional relationship between the fixed connection point of the bending elastic frame 400 and the hinge connection point is generated. Variety.
  • the distance between the fixed connection point and the hinged connection point can be determined based on the elastic modulus of the bending elastic frame 400, the vibration and impact generated by the pumping system 200, and the weight experienced by the bending elastic frame 400.
  • the hinged joint between the hopper hanger 130 and the bent elastic frame 400 can realize the standardization and serialization of the installation structure of the hopper 240 and the chassis 100, so that the hopper 240 can be matched with different chassis 100, or the chassis can be made. 100 cooperates with different hoppers 240 to achieve modularization of the mounting structure between the hopper 240 and the chassis 100.
  • FIG. 10 is a connection diagram of a pumping system and a chassis portion of the pump truck provided by the present invention.
  • the main cylinder 210, the water tank 220, the delivery cylinder 230, and the hopper 240 are sequentially connected to each other to form a rigid structure as a whole.
  • the hopper 240 is hingedly connected to the underframe 100 by the bending elastic frame 400 to form a hinge point 01;
  • the water tank 220 is hingedly connected to the end of the connecting rod 300, and the other end 122 of the connecting rod 300 is hingedly connected with the bottom frame 100.
  • the ends form hinge points 02 and 03.
  • a three hinge structure having three hinge points 01, 02, and 03 is formed between the pumping system 200 and the chassis 100, and the three hinge structures form a stable triangular structure.
  • the three hinged structure ensures stability between the pumping system 200 and the undercarriage 100 when the pumping system 200 is pumping.
  • the vibration generated by the pumping system 200 causes the link 300 to swing relative to the chassis 100, thus reducing the vibration and shock transmitted through the link 300 to the chassis 100; at the same time, the swing of the link 300 will be generated by the pumping system 200. Part of the vibration and impact forces are transmitted to the bent elastic frame 400.
  • the first rod 410 and the second when subjected to vibration and impact generated by the pumping system 200 The angle between the extending directions of the rods 420 is changed, and the positional relationship between the fixed connection point of the bending elastic frame 400 and the hinged connection point can be correspondingly changed, thereby being able to absorb the vibration and impact force generated by the pumping, and The vibration shock transmitted to the chassis 100 by bending the elastic frame 400.
  • the above structure greatly reduces the vibration and shock transmitted by the pumping system 200 to the chassis 100, and reduces the adverse effects of the vibration of the chassis 100.
  • the hinged connection of the three-hinged structure can automatically adapt to the positional relationship between the water tank 220 and the underframe 100, between the hopper 240 and the underframe 100, so that the elastic frame 400 and the connecting rod 300 are bent.
  • the hopper 240 can be conveniently mounted on the chassis 100 through the bent elastic frame 400, and the connecting rod 300 can be conveniently mounted on the chassis. 100, thereby avoiding or reducing the occurrence of over-positioning of the pumping system 200; in addition, the pumping system 200 can be assembled with the chassis 100 by a detachable structure to install between the pumping system 200 and the chassis 100. And quicker disassembly, making pumping machinery easier to install and maintain.
  • the line connecting the ends of the connecting rod 300 forms a sharp angle ⁇ with the direction of gravity; thus, the three hinge points 01, 02 and 03 of the three-hinge structure form an obtuse angle triangle,
  • the structure can improve the stability of the three hinge structures, thereby improving the reliability of the connection between the pumping system 200 and the chassis 100.
  • the sharp angle ⁇ may be less than 15 degrees, preferably less than 5 degrees.
  • the three hinge points 01, 02, and 03 can be formed into a right-angled triangular structure or an acute-angled triangular structure to meet different needs.
  • the bending elastic frame 400 is not limited to being hingedly connected to the chassis 100 and fixedly connected to the hopper 240.
  • the bending elastic frame 400 can be fixed to the chassis 100 and hinged to the hopper 240, so that stable pumping can also be achieved.
  • System 200 buffering vibration shocks, reduces the purpose of vibration transmission.
  • the first rod 410 and the second rod 420 forming the bent elastic frame 400 are respectively a plate-like structure. In actual production, the first rod 410 and the second rod 420 can be set to appropriate according to actual needs.
  • the structure is such that the bent elastic frame 400 has an appropriate strength and modulus of elasticity to allow the bending elastic frame 400 to absorb predetermined vibrations and shocks while ensuring the stability of the pumping system 200.
  • the connecting rod 300 is connected to the water tank 220 to improve the service life and stability of the connecting rod 300. But even The H 300 is not limited to being connected to the water tank 220 of the pumping system 200, but may be connected to other portions of the pumping power unit formed by the main cylinder 210, the water tank 220, and the delivery cylinder 230.
  • the bending elastic frame 400 has the structural unit as the elastic buffer mechanism, has the functions of being reliable, and is convenient for installation and maintenance; and according to the specific situation, the elastic buffer mechanism can be made into other specific structures, and the elastic buffering mechanism can satisfy the following conditions.
  • the vibration and shock generated by the pumping system 200 are absorbed while ensuring the operational stability of the pumping system 200.
  • the satisfied conditions include: simultaneous connection with the chassis 100 and the hopper 240 to form an articulated connection point and a fixed connection point; a predetermined distance between the hinged connection point and the fixed connection point; capable of being subjected to vibration and impact forces The positional relationship between the hinged joint and the fixed joint is changed.
  • the elastic buffer mechanism can also be other specific structures.
  • FIG. 11 is a structural schematic diagram of another elastic buffer mechanism in the pumping machine provided by the present invention.
  • the elastic cushioning mechanism includes a hinge rod 510 and an elastic member 520; in this example, the elastic member 520 is a spring.
  • the two ends of the hinge rod 510 are hingedly connected to the bottom frame 100 and the hopper 240 respectively; the elastic member 520 is located between the hinge rod 510 and the chassis 100 to have a predetermined rigidity between the hinge rod 510 and the chassis 100; thus, the hinge rod 510 A joint is formed at the junction with the chassis 100, and the joint between the hinge rod 510 and the hopper 240 forms a hinge joint.
  • the elastic member 520 absorbs vibration and shock and acts as a cushioning force when subjected to shock and vibration.
  • the elastic member 520 may be located between the hinge rod 510 and the hopper 240 to have a predetermined rigidity between the hinge rod 510 and the hopper 240; thus, the joint between the hinge rod 510 and the hopper 240 forms a fixed connection. At the point, the joint between the hinge rod 510 and the chassis 100 forms an articulated connection point.
  • the elastic member 520 is not limited to a spring, and may also be a piston type telescopic assembly; the piston type telescopic assembly may include a cylinder, a piston that cooperates with the cylinder, and a return spring between the cylinder and the piston; the elastic member 520 may also be A hydraulic cylinder is provided with a return spring between the cylinder and the piston, and a throttle valve is connected in series on the hydraulic oil line between the rod chamber and the rodless chamber of the hydraulic cylinder.
  • FIG. 12 is a schematic structural view of another elastic buffer mechanism in the pumping machine provided by the present invention.
  • the elastic buffer mechanism includes a transverse rod 610, a longitudinal rod 620 and a spring 630 and a spring 640, wherein the transverse rod extends laterally, the longitudinal rod 620 extends in a direction perpendicular to the direction in which the transverse shaft 610 extends, and the longitudinal rod 620 and the transverse shaft 610 are slidable.
  • Cooperating, longitudinal rod 620 phase The sliding direction of the transverse bar 610 is parallel to the extending direction of the longitudinal bar 620.
  • the spring 630 and the spring 640 are respectively located above and below the transverse rod 610; the two ends of the spring 630 are respectively supported at the proper positions on the transverse rod 610 and the longitudinal rod 620, and are kept in a compressed state; the two ends of the spring 640 are respectively opposite to the transverse rod 610 and the longitudinal direction
  • the rods 620 are connected and remain stretched; the spring 630 and the spring 640 can simultaneously maintain the longitudinal rod 620 in a tendency to move upward relative to the transverse rod 610.
  • the two ends of the transverse rod 610 are respectively hinged with the beam 110 of the chassis 100 to form a hinge connection point; the two longitudinal rods 620 are fixed with the hopper 240 to form a fixed connection point.
  • the hinged connection between the transverse rod 610 and the beam 110 can avoid or reduce over-positioning of the pumping system 200; the slidable fit between the longitudinal rod 620 and the transverse shaft 610 and the spring 630 and spring 640 can enable the elastic buffer mechanism to absorb the pump
  • the vibration shock generated by the delivery system achieves the object of the present invention.
  • the transverse rod 610 can also be hingedly connected to the hopper 240 to fix the longitudinal rod 620 to the chassis 100.
  • the vibration shock can be absorbed only by the spring 630 or the spring 640.
  • Spring 630 and spring 640 may be replaced with other resilient members such as elastic pads, elastic cords, and the like.
  • the elastic buffer mechanism can also be an elastic rod having an appropriate elastic modulus or performance, and the hopper
  • the 240 and the chassis 100 are connected to different positions of the elastic rod to form an articulated connection point and a fixed connection point; by the deformation of the elastic rod, a predetermined change is made between the position between the hinge connection point and the fixed connection point, and the absorption pumping system generates The vibration and impact of the present invention achieve the object of the present invention.
  • Each of the above structures can be applied not only to a pump truck but also to other pumping machines such as a tow pumping machine and a vehicle-mounted pumping machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

一种泵送机械 本申请要求于 2010 年 9 月 19 日提交中国专利局、 申请号为 201010289628.X, 发明名称为"一种泵送机械 "的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及一种泵送混凝土等粘稠物料的泵送技术， 特别涉及一种泵 送机械。
背景技术
随着当前建筑施工技术的不断发展， 应用泵送机械输送混凝土已经成 为常用一种选择。 一般而言， 泵送机械包括泵送系统和底架。 泵送系统用 于向外泵送混凝土等物料。 底架用于承载泵送系统， 对于可移动的泵送机 械来讲， 还同时具有相应的行驶机构， 以便于在不同作业地点之间进行转 场。
请参考图 1 , 该图是现有技术中一种泵送系统的结构示意图。 该泵送 系统包括泵送动力装置 10和料斗 20, 泵送动力装置 10为泵送提供动力， 包括顺序相连的主油缸 11、 水箱 12及输送缸 13; 水箱 12连接主油虹 11 和输送缸 13。 输送缸 13与料斗 20相连； 料斗 20具有分配阀、 摆摇机构 及适当的搅拌机构。 在工作过程中， 摆摇机构驱动分配阀进行往复摆动； 在预定第一时间段内， 使一个输送缸 13与料斗 20相通， 另一个输送缸 13 与分配阀相通； 两个主油缸 11分别驱动两个输送缸 13动作， 使一个输送 缸 13的砼活塞收缩，从料斗 20中吸入混凝土， 另一个输送缸 13的砼活塞 伸出，经过分配阀向外泵送混凝土。 两个输送缸 13内砼活塞的往复运动驱 动混凝土沿预定的输送管道流动， 将混凝土输送到预定的位置。
当前， 为了保证泵送机构工作的稳定性， 泵送系统和底架之间固定相 连， 形成刚性连接。 由于泵送系统加工误差的存在， 泵送系统安装部位通 常会存在一定的尺寸误差； 因此， 为了提高装配效率， 方便泵送机械的组 装， 当前主要通过配焊的方式将泵送系统和底架固定相连。 当前的刚性连接虽然能够满足泵送机械正常运转的需要， 但也存在如 下不足：
第一、 在工作过程中， 泵送系统的摆摇机构、 分配阀、 主油缸和输送 缸均进行往复运动， 混凝土或其他物料也以不连续的方式进行流动； 这就 导致泵送系统产生强烈的振动与沖击。 由于泵送系统与底架之间为刚性连 接， 泵送系统的振动和沖击会传递给泵送机械的底架， 进而影响底架及其 零部件的使用性能及其使用寿命。 在泵送机械为包括臂架的泵车时， 由于 臂架为长杆形结构， 臂架还会将振动放大， 使臂架末端产生幅度很大的振 动， 影响物料输送的位置控制。
第二、 由于泵送系统与底架通过多个刚性连接点相连； 多个刚性连接 点容易导致泵送系统的过定位， 使泵送系统产生变形， 进而改变主油缸和 输送缸中相应活塞与缸体配合关系， 不仅影响泵送效率和泵送压力， 还会 导致活塞， 特别是输送缸内砼活塞磨损加剧， 缩短泵送系统的使用寿命。 发明内容
针对上述不足， 本发明的目的在于， 提供一种泵送机械， 该泵送机械 不仅能够减少泵送系统向底架传递的振动， 还可以减少泵送系统的过定位 发生。
为了实现上述目的， 本发明提供的泵送机械包括泵送系统和底架， 所 述泵送系统包括泵送动力装置和料斗， 还包括弹性緩沖机构和连杆； 所述 弹性緩沖机构与料斗和底架之中的一个固定相连， 形成固定连接点， 与另 一个铰接相连， 形成铰接连接点； 所述固定连接点与铰接连接点之间具有 预定的距离； 所述连杆两端分别与所述泵送动力装置和底架铰接相连。
可选的， 所述底架还包括料斗吊挂座， 所述料斗吊挂座包括吊挂基板 和从该吊挂基板一侧向同方向伸出的两个吊挂板， 所述吊挂基板与底架的 横梁的端面固定， 两个吊挂板外端同时与所述弹性緩沖机构铰接相连， 形 成所述铰接连接点。
可选的， 所述弹性緩沖机构包括弯折弹性架， 所述弯折弹性架包括延 伸方向之间形成预定夹角的第一杆和第二杆， 所述第一杆的内端和第二杆 内端固定相接；
所述第一杆的外端与底架铰接相连， 所述第二杆的外端与料斗固定相 连； 或者， 所述第一杆的外端与底架固定相连， 所述第二杆的外端与料斗 铰接相连。
可选的， 所述第一杆和第二杆延伸方向之间形成钝角； 所述第二杆水 平延伸， 且其外端与料斗相连。
可选的， 所述第二杆的外端与料斗的后墙板固定相连， 形成固定连接 点； 且所述第二杆与所述料斗的摆阀安装基板固定。
可选的， 所述弹性緩沖机构包括铰接杆和弹性部件， 所述铰接杆两端 分别与底架和料斗铰接相连；
所述弹性部件位于所述铰接杆与底架之间， 使铰接杆与底架的连接处 形成所述固定连接点，铰接杆与料斗的连接处形成所述铰接连接点； 或者， 所述弹性部件位于所述铰接杆与料斗之间， 使铰接杆与料斗的连接处形成 所述固定连接点， 铰接杆与底架的连接处形成所述铰接连接点。
可选的， 所述弹性部件为弹簧； 或者活塞式伸缩组件， 所述活塞式伸 缩组件包括缸体、与该缸体配合的活塞和位于缸体与活塞之间的复位弹簧； 或者为液压缸， 所述液压缸的缸体与活塞之间设置有复位弹簧， 该液压缸 的有杆腔和无杆腔之间的液压油路中串连有节流阀。
可选的， 所述弹性緩沖机构包括横向杆、 纵向杆及弹性部件； 所述纵 向杆与横向杆之间可滑动配合， 且所述纵向杆相对于横向杆的滑动方向与 该纵向杆的延伸方向平行； 所述弹性部件两端分别支撑或连接在所述横向 杆与纵向杆之间；
所述横向杆与所述底架铰接相连， 所述纵向杆与所述料斗固定相连， 或者，所述横向杆与所述料斗铰接相连，所述纵向杆与所述底架固定相连。
可选的， 所述底架包括两个固定座； 所述固定座包括两个平行延伸的 支撑板、 连接两个支撑板一端的基板和连接两个支撑板另一端的固定板， 所述基板与所述底架的横梁固定； 所述连杆一端与固定座的固定板铰接相 连。
可选的， 所述连 与所述泵送动力装置中的水箱相连。 可选的， 在自由状态下， 所述连杆两端的连线与重力方向之间形成锐 夹角。
与现有技术相比， 本发明提供的泵送机械中， 泵送系统通过连杆和弹 性緩沖机构与底架相连； 连杆两端分别与底架和泵送动力装置铰接相连； 弹性緩沖机构固定在底架或料斗上， 同时与料斗或底架铰接， 在弹性緩沖 机构上形成固定连接点和铰接连接点， 且固定连接点和铰接连接点之间具 有预定的距离。 这样， 泵送系统与底架之间的连接位置就形成一个具有 3 个铰接点的三铰接结构， 该三铰接结构形成一个稳定的三角形结构。 在泵 送机械进行泵送作业时， 三铰接结构能够保证泵送系统与底架之间的稳定 性。 泵送系统产生的振动会使连杆相对底架摆动， 这样就能够减小通过该 连接位置向底架传递的振动； 同时， 连杆的摆动将泵送系统作业时产生的 振动和沖击力传递给弹性緩沖机构。 在受到泵送产生的振动和沖击力作用 时， 弹性緩沖机构能够产生预定的弹性变形， 使固定连接点和铰接连接点 之间的位置关系产生变化， 从而能够吸收泵送系统产生的振动和沖击， 緩 沖料斗对底架的沖击。 在泵送系统存在加工误差时， 由于泵送系统与底架 之间通过三铰接结构相连， 铰接结构可以自动适应泵送动力装置和底架之 间， 料斗与底架之间的位置关系， 以方便地将料斗通过弹性緩沖机构安装 在底架上， 也能够方便地将泵送动力装置通过连杆安装在底架上； 这样不 仅能够避免或减少泵送系统的过定位发生， 还可以通过可拆卸的结构方便 地将泵送系统与底架组装。
在进一步的技术方案中， 所述弹性緩沖机构包括弯折弹性架， 通过弯 折弹性架的弹性变形实现吸收能量、 緩沖振动和沖击、 保证连接可靠性的 目的； 该结构具有结构筒单， 可靠性高， 适应性强的优点。
在进一步的技术方案中， 所述弹性緩沖机构与所述泵送动力装置中的 水箱相连； 相对于主油缸和输送缸而言， 由于水箱本身的振动较小， 使泵 送动力装置的支撑点位于水箱上， 可以减小弹性緩沖机构变化频率， 提高 弹性緩沖机构的使用寿命和稳定性。
在进一步的技术方案中， 在自由状态下， 所述连杆两端的连线与重力 方向之间形成锐夹角； 这样可以使三铰接结构的三个铰接点形成一个钝角 三角形， 进而提高三铰接结构的稳定性。
附图说明
图 1是现有技术中一种泵送系统的结构示意图；
图 2是本发明提供的一种泵车的整体结构示意图；
图 3是图 2所示泵车中， 底架与泵送系统的连接结构示意图； 图 4为图 3中 I-I部分放大图；
图 5是图 3中， 固定座的结构示意图；
图 6是图 3中泵送系统的水箱的立体结构示意图；
图 7是图 3所示泵送系统中， 料斗的立体结构示意图；
图 8是图 7中 A向视图；
图 9是图 3中 Π-Π部分的放大图；
图 10是本发明提供的泵车中， 泵送系统与底架部分的连接结构筒图； 图 11是本发明提供的泵送机械中， 另一种弹性緩沖机构的结构筒图； 图 12 是本发明提供的泵送机械中， 再一种弹性緩沖机构的结构示意 图。
具体实施方式
下面结合附图对本发明进行详细描述， 本部分的描述仅是示范性和解 释性， 不应对本发明的保护范围有任何的限制作用。
应当说明的是， 本发明中， 所述固定连接点和铰接连接点为连接位置 的筒称； 且固定连接点为与铰接连接点相比， 具有较大刚度的连接位置。
请参考图 2和图 3 , 图 2是本发明提供的一种泵车的整体结构示意图， 图 3是图 2所示泵车中， 底架与泵送系统的连接结构示意图。 该泵车包括 底架 100和泵送系统 200; 泵送系统 200包括顺序相连的主油缸 210、水箱 220、 输送缸 230和料斗 240, 其中， 主油缸 210、 水箱 220和输送缸 230 形成该泵送系统的泵送动力装置， 为物料泵送提供动力。 与现有技术的不 同之处在于， 该泵车还包括弯折弹性架 400和连杆 300。
请参考图 4和图 5, 图 4为图 3中 I-I部分放大图， 图 5是图 3中， 固 定座的结构示意图。本实施例中，底架 100包括横梁 110和两个固定座 121 ; 固定座 121又包括两个平行向上延伸的支撑板 1211、连接两个支撑板 1211 下端的基板 1212和连接两个支撑板 1211上端的固定板 1213; 基板 1212 与横梁 110通过紧固件固定。为了提高固定座 121的强度，两个支撑板 1211 之间具有预定的距离。 在两个固定座 121之间还设置有铰接杆 122, 铰接 杆 122两端分别支撑在两个固定座 121的固定板 1213上。为了避免铰接杆 122与固定板 1213分离， 在固定板 1213上还设置有盖板 1214; 盖板 1214 和固定板 1213通过紧固件固定相连， 并将铰接杆 122端部夹持，使铰接杆 122两端分别与底架 100之间固定相连。 固定板 123与铰接杆 122之间的 具体连接方式， 可以根据实际需要进行选择。
请参考图 6, 该图是图 3 中泵送系统的水箱的立体结构示意图。 本例 中， 水箱 220后墙板上侧形成向上伸出两个水箱支耳 221。 水箱支耳 221 可以与后墙板为一体结构， 也可以通过可拆卸的其他方式将水箱支耳 221 与水箱 220的后墙板固定。
再参考图 4, 水箱 220前后侧分别与输送缸 230和主油缸 210相连， 且两个水箱支耳 221与连杆 300的一端铰接相连； 连杆 300的另一端通过 铰接杆 122与固定座 121的固定板 1213铰接相连。这样， 水箱 220与底架 100之间通过连杆 300铰接连接在一起。 可以理解， 实现连杆 300与底架 100之间铰接相连的方式不限于上述方式，还可以使两个固定板 1213分别 与铰接杆 122两端铰接相连， 并使连杆 300一端与铰接杆 122固定相连， 也可以使连杆 300—端直接与固定板 1213或底架 100的横梁 110铰接相连。
请参考图 7和图 8, 图 7是图 3所示泵送系统中， 料斗的立体结构示 意图， 图 8是图 7中 A向视图。 料斗 240包括左右对称的两对弯折弹性架 400;弯折弹性架 400包括延伸方向之间形成预定夹角的第一杆 410和第二 杆 420, 所述第一杆 410的内端和第二杆 420内端固定相接， 形成一个弯 折的、 具有预定弹性的杆状结构。 第二杆 420的外端与料斗 240的后墙板 固定， 形成固定连接点； 同时， 第二杆 420上侧面与横向延伸的摆阀安装 基板 242固定。 第二杆 420上侧面与摆阀安装基板 242固定， 可以起到加 强摆阀安装基板 242强度的作用， 因此， 不必要再专门设置加强板或加强 筋来保证摆阀安装基板 242的强度。 成对的两个弯折弹性架 400之间也具 有预定的距离， 以提高连接强度。
请参考图 9, 该图是图 3中 Π-Π部分的放大图。 本例中， 底架 100还 包括料斗吊挂座 130,料斗吊挂座 130包括吊挂基板 131和从吊挂基板 131 一侧向同方向伸出的两个吊挂板 132, 吊挂基板 131与横梁 110的端面固 定。 两个吊挂板 132外端同时通过铰接轴与两个第一杆 410的外端铰接， 形成铰接连接点。 为了提高料斗吊挂座 130的强度， 两个吊挂板 132之间 具有预定的距离。
弯折弹性架 400的铰接连接点与固定连接点之间具有预定的距离； 在 受到振动或沖击力作用时， 弯折弹性架 400的固定连接点与铰接连接点之 间相对位置关系会产生变化。 固定连接点与铰接连接点之间的距离可以根 据弯折弹性架 400的弹性模量、 泵送系统 200产生的振动和沖击及弯折弹 性架 400承受的重量综合确定。
料斗吊挂座 130与弯折弹性架 400之间的铰接结合，可以实现料斗 240 与底架 100安装结构的标准化、系列化，使料斗 240可以与不同的底架 100 相配合，或使底架 100与不同的料斗 240相配合，实现料斗 240与底架 100 之间安装结构的模块化。
请参考图 10, 该图是本发明提供的泵车中， 泵送系统与底架部分的连 接结构筒图。 主油缸 210、 水箱 220、 输送缸 230及料斗 240顺序相连， 在 整体上形成一个刚性结构体。 料斗 240通过弯折弹性架 400与底架 100铰 接相连， 形成铰接点 01 ; 水箱 220与连杆 300 —端铰接相连， 连杆 300 的另一端 122与底架 100铰接相连，在连杆 300两端形成铰接点 02和 03。 这样， 在泵送系统 200与底架 100之间形成一个具有 3个铰接点 01、 02 和 03 的三铰接结构， 该三铰接结构形成一个稳定的三角形结构。 在泵送 系统 200进行泵送作业时， 三铰接结构能够保证泵送系统 200与底架 100 之间的稳定性。泵送系统 200产生的振动会使连杆 300相对底架 100摆动， 这样就能够减少通过连杆 300向底架 100传递的振动和沖击； 同时， 连杆 300 的摆动将泵送系统 200 产生的部分振动和沖击力传递给弯折弹性架 400。在受到泵送系统 200产生的振动和沖击力作用时， 第一杆 410和第二 杆 420延伸方向之间的角度会产生变化， 弯折弹性架 400的固定连接点和 铰接连接点之间的位置关系能够产生相应的变化， 从而能够吸收泵送产生 的振动和沖击力， 减小通过弯折弹性架 400向底架 100传递的振动沖击。 从而， 上述结构大大减小泵送系统 200向底架 100传递的振动和沖击， 减 小底架 100振动产生的不利影响。 在泵送系统 200存在加工误差时， 三铰 接结构的铰接相连可以自动适应水箱 220与底架 100之间、 料斗 240与底 架 100之间的位置关系， 使弯折弹性架 400及连杆 300更好地与底架 100 的预定结构和位置相对应； 这样就可以^艮方便地将料斗 240通过弯折弹性 架 400安装在底架 100上， 也能够方便地将连杆 300安装在底架 100上， 从而能够避免或减少泵送系统 200过定位的发生； 另外， 还可以通过可拆 卸的结构将泵送系统 200与底架 100组装， 使泵送系统 200与底架 100之 间的安装和拆卸更加快捷， 使泵送机械的安装和维护更加方便。
如图 10所示，在自由状态下，连杆 300两端的连线与重力方向之间形 成锐夹角 Θ； 这样， 三铰接结构的三个铰接点 01、 02和 03形成一个钝 角三角形， 该结构能够提高三铰接结构的稳定性， 进而提高泵送系统 200 与底架 100之间连接的可靠性。 为了减小泵送过程中连杆 300承受的剪切 应力， 锐夹角 Θ范围可以小于 15度， 优选小于 5度。 当然， 根据泵送机械 的具体结构， 可以使三个铰接点 01、 02和 03形成的直角三角形结构或 锐角三角形结构， 以满足不同需要。
可以理解， 弯折弹性架 400不限于和底架 100铰接相连、 与料斗 240 固定相连， 也可以使弯折弹性架 400与底架 100固定、 与料斗 240铰接， 这样也同样能够实现稳定泵送系统 200, 緩沖振动沖击， 减小振动传递的 目的。 本例中， 形成弯折弹性架 400的第一杆 410和第二杆 420分别为板 状结构， 在实际生产中， 可以根据实际需要， 将第一杆 410和第二杆 420 设置为适当的结构， 以保证弯折弹性架 400具有适当的强度和弹性模量， 以在保证泵送系统 200稳定性的基础上， 使弯折弹性架 400吸收预定的振 动和沖击。
由于相对于主油缸 210和输送缸 230而言，水箱 220本身的振动较小。 连杆 300与水箱 220相连， 可以提高连杆 300的使用寿命和稳定性。 但连 H 300不限于与泵送系统 200的水箱 220相连， 也可以与主油缸 210、 水 箱 220及输送缸 230形成的泵送动力装置的其他部分相连。
弯折弹性架 400作为弹性緩沖机构具有结构筒单， 功能可靠， 便于安 装和维护的优点；根据具体情况，还可以使弹性緩沖机构为其他具体结构， 在弹性緩沖机构满足以下条件时， 就可以在保证泵送系统 200工作稳定性 的同时， 吸收泵送系统 200产生的振动和沖击。 满足的条件包括： 同时与 底架 100和料斗 240相连， 形成铰接连接点和固定连接点； 使铰接连接点 和固定连接点之间具有预定的距离； 在承受振动和沖击力作用时， 能够使 铰接连接点和固定连接点之间位置关系产生变化。 根据以上描述， 弹性緩 沖机构还可以为其他具体结构。
请参考图 11 , 该图是本发明提供的泵送机械中， 另一种弹性緩沖机构 的结构示意图。 该弹性緩沖机构包括铰接杆 510和弹性部件 520; 本例中， 弹性部件 520为弹簧。 铰接杆 510两端分别与底架 100和料斗 240铰接相 连； 弹性部件 520位于铰接杆 510与底架 100之间， 使铰接杆 510与底架 100之间具有预定的刚度； 这样， 铰接杆 510与底架 100之间的连接处形 成固定连接点， 铰接杆 510与料斗 240之间的连接处形成铰接连接点。 在 受到沖击和振动时， 弹性部件 520能够吸收振动和沖击， 起到緩沖作用。 另外， 还可以使弹性部件 520位于所述铰接杆 510与料斗 240之间， 使铰 接杆 510与料斗 240之间具有预定的刚度； 这样， 铰接杆 510与料斗 240 之间的连接处形成固定连接点， 铰接杆 510与底架 100之间的连接处形成 铰接连接点。 弹性部件 520不限于为弹簧， 还可以是活塞式伸缩组件； 活 塞式伸缩组件可以包括缸体、 与该缸体配合的活塞和位于缸体与活塞之间 的复位弹簧； 弹性部件 520还可以为液压缸， 该液压缸的缸体与活塞之间 设置有复位弹簧， 并在该液压缸的有杆腔和无杆腔之间的液压油路上串连 节流阀。
请参考图 12, 该图是本发明提供的泵送机械中， 再一种弹性緩沖机构 的结构示意图。 该弹性緩沖机构包括横向杆 610、 纵向杆 620及弹簧 630 和弹簧 640, 其中横向杆横向延伸， 纵向杆 620延伸方向与横向轴 610延 伸方向垂直， 且纵向杆 620与横向轴 610之间可滑动配合， 纵向杆 620相 对于横向杆 610的滑动方向与纵向杆 620的延伸方向平行。 弹簧 630和弹 簧 640分别位于横向杆 610上方和下方； 弹簧 630两端分别支撑在横向杆 610与纵向杆 620上的合适位置， 并保持被压缩状态； 弹簧 640两端分别 与横向杆 610与纵向杆 620相连，并保持被拉伸状态；弹簧 630和弹簧 640 可以同时使纵向杆 620保持相对于横向杆 610向上运动的趋势。 其中， 横 向杆 610两端分别与底架 100的横梁 110铰接， 形成铰接连接点； 两个纵 向杆 620与料斗 240固定， 形成固定连接点。 横向杆 610与横梁 110之间 的铰接连接可以避免或减少泵送系统 200过定位发生； 纵向杆 620与横向 轴 610之间可滑动配合及弹簧 630和弹簧 640可以使该弹性緩沖机构能够 吸收泵送系统产生的振动沖击， 实现本发明的目的。 可以理解， 利用上述 弹性緩沖机构时，也可以使横向杆 610与料斗 240铰接相连，使纵向杆 620 与底架 100固定相连。 在特定情况下， 可以仅用弹簧 630或弹簧 640吸收 振动沖击。 弹簧 630和弹簧 640可以弹性垫、 弹性绳索等其他弹性部件替 换。
弹性緩沖机构还可以为具有适当弹性模量或性能的弹性杆， 并使料斗
240和底架 100与该弹性杆的不同位置相连， 形成铰接连接点和固定连接 点； 通过弹性杆的变形， 使铰接连接点和固定连接点之间的位置产生预定 变化， 吸收泵送系统产生的振动和沖击， 实现本发明的目的。
上述各结构不仅应用于泵车中， 也可以应用在拖式泵送机械、 车载式 泵送机械等其他泵送机械中。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领域的 普通技术人员来说， 在不脱离本发明原理的前提下， 还可以做出若干改进 和润饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

权 利 要 求
1、 一种泵送机械， 包括泵送系统（200)和底架（ 100), 所述泵送系 统（200)包括泵送动力装置和料斗（240), 其特征在于， 还包括弹性緩沖 机构和连杆（300); 所述弹性緩沖机构与料斗 （240)和底架（100)之中 的一个固定相连， 形成固定连接点， 与另一个铰接相连， 形成铰接连接点； 所述固定连接点与铰接连接点之间具有预定的距离； 所述连杆（300)两端 分别与所述泵送动力装置和底架（100)铰接相连。
2、 根据权利要求 1所述的泵送机械， 其特征在于， 所述底架（ 100) 还包括料斗吊挂座（ 130), 所述料斗吊挂座（ 130) 包括吊挂基板 ( 131 ) 和从该吊挂基板（ 131 )—侧向同方向伸出的两个吊挂板（ 132), 所述吊挂 基板 ( 131 )与底架（ 100)的横梁（ 110)的端面固定， 两个吊挂板（ 132) 外端同时与所述弹性緩沖机构铰接相连， 形成所述铰接连接点。
3、根据权利要求 1所述的泵送机械， 其特征在于， 所述弹性緩沖机构 包括弯折弹性架（400), 所述弯折弹性架（400)包括延伸方向之间形成预 定夹角的第一杆（410)和第二杆（420), 所述第一杆（410) 的内端和第 二杆 (420) 内端固定相接；
所述第一杆（ 410 )的外端与底架（ 100 )铰接相连， 所述第二杆 ( 420 ) 的外端与料斗 （240) 固定相连； 或者， 所述第一杆（410) 的外端与底架 ( 100) 固定相连， 所述第二杆 (420) 的外端与料斗 （240)铰接相连。
4、 根据权利要求 3所述的泵送机械， 其特征在于， 所述第一杆（410) 和第二杆 (420)延伸方向之间形成钝角； 所述第二杆（420) 水平延伸， 且其外端与料斗 （240)相连。
5、 根据权利要求 3所述的泵送机械， 其特征在于， 所述第二杆（420) 的外端与料斗（240)的后墙板固定相连， 形成固定连接点； 且所述第二杆 (420)与所述料斗 （240) 的摆阀安装基板 (242) 固定。
6、根据权利要求 1所述的泵送机械， 其特征在于， 所述弹性緩沖机构 包括铰接杆 (510)和弹性部件（520), 所述铰接杆 (510) 两端分别与底 架（100)和料斗 （240)铰接相连；
所述弹性部件（ 520 )位于所述铰接杆 (510)与底架（ 100 )之间， 使 铰接杆 ( 510 )与底架（ 100 )的连接处形成所述固定连接点，铰接杆 ( 510 ) 与料斗（240)的连接处形成所述铰接连接点； 或者， 所述弹性部件（ 520) 位于所述铰接杆 (510)与料斗（ 240 )之间，使铰接杆 (510)与料斗（ 240 ) 的连接处形成所述固定连接点， 铰接杆 (510)与底架（100) 的连接处形 成所述铰接连接点。
7、根据权利要求 6所述的泵送机械， 其特征在于， 所述弹性部件为弹 簧； 或者活塞式伸缩组件， 所述活塞式伸缩组件包括缸体、 与该缸体配合 的活塞和位于缸体与活塞之间的复位弹簧； 或者为液压缸， 所述液压缸的 缸体与活塞之间设置有复位弹簧， 该液压缸的有杆腔和无杆腔之间的液压 油路中串连有节流阀。
8、根据权利要求 1所述的泵送机械， 其特征在于， 所述弹性緩沖机构 包括横向杆（610)、 纵向杆（620)及弹性部件； 所述纵向杆（620)与横 向杆（610)之间可滑动配合， 且所述纵向杆（620)相对于横向杆（610) 的滑动方向与该纵向杆（620)的延伸方向平行； 所述弹性部件两端分别支 撑或连接在所述横向杆（ 610 )与纵向杆（ 620 )之间；
所述横向杆（610) 与所述底架（100)铰接相连， 所述纵向杆（620) 与所述料斗（240)固定相连， 或者， 所述横向杆（610)与所述料斗（240) 铰接相连， 所述纵向杆与所述底架（100) 固定相连。
9、 根据权利要求 1-8任一项所述的泵送机械， 其特征在于， 所述底架 包括两个固定座（ 121 ); 所述固定座（ 121 ) 包括两个平行延伸的支撑板
( 1211 )、 连接两个支撑板（ 1211 )一端的基板 ( 1212 )和连接两个支撑板 ( 1211 ) 另一端的固定板（1213), 所述基板（1212)与所述底架（100) 的横梁（ 110)固定； 所述连杆（300)—端与固定座（ 121 )的固定板（ 1213) 铰接相连。
10、 根据权利要求 1-8任一项所述的泵送机械， 其特征在于， 所述连 杆（300) 与所述泵送动力装置中的水箱 （220)相连。
11、 根据权利要求 1-8任一项所述的泵送机械， 其特征在于， 在自由 状态下， 所述连杆（300) 两端的连线与重力方向之间形成锐夹角 （θ)。
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CN105697356A (zh) * 2014-11-25 2016-06-22 中联重科股份有限公司 泵送单元装置及混凝土泵车
CN105697356B (zh) * 2014-11-25 2018-01-02 中联重科股份有限公司 泵送单元装置及混凝土泵车

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