WO2013104158A1 - 一种泵送机构及包括该泵送机构的物料泵送设备 - Google Patents

一种泵送机构及包括该泵送机构的物料泵送设备 Download PDF

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Publication number
WO2013104158A1
WO2013104158A1 PCT/CN2012/074102 CN2012074102W WO2013104158A1 WO 2013104158 A1 WO2013104158 A1 WO 2013104158A1 CN 2012074102 W CN2012074102 W CN 2012074102W WO 2013104158 A1 WO2013104158 A1 WO 2013104158A1
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WIPO (PCT)
Prior art keywords
valve
piston rod
cylinder
pumping mechanism
piston
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PCT/CN2012/074102
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English (en)
French (fr)
Inventor
郑云
刘云
陈细军
Original Assignee
湖南三一智能控制设备有限公司
三一重工股份有限公司
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Application filed by 湖南三一智能控制设备有限公司, 三一重工股份有限公司 filed Critical 湖南三一智能控制设备有限公司
Publication of WO2013104158A1 publication Critical patent/WO2013104158A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous

Definitions

  • the invention relates to a pumping mechanism and a material pumping device including the pumping mechanism.
  • the application is submitted to the Chinese Patent Office on January 11, 2012, and the application number is 201210007416.7.
  • the invention name is "a pumping mechanism and includes the pumping mechanism.
  • the invention relates to the technical field of construction machinery, and in particular to a pumping mechanism of a material pumping device. Furthermore, the invention relates to a material pumping device comprising the pumping mechanism described above.
  • the mortar spraying machine is a commonly used material pumping device. It is a kind of machine that disperses the mortar into a mist and sprays it onto the surface of the object to be coated. It is suitable for reinforcement, leveling and painting. It can be used for ordinary mortar plastering on the inner and outer walls. Smooth the plaster, thermal insulation mortar, bonding mortar, lime paint, repair paint, face ash, sticky tiles and fill mortar.
  • the mortar spraying machine is mainly composed of pumping mechanism, power device, air compressor, stirring device and hopper.
  • the working principle is as follows: Under the driving of the power device, the mortar material is poured into the hopper, and the stirring device is evenly stirred.
  • the pumping mechanism is transported to the discharge port of the front end, and the high-pressure gas outputted by the air compressor blows off the material, so that the material is uniformly sprayed onto the surface of the object.
  • FIG. 1 is a schematic structural view of a mortar pump disclosed in Chinese Patent Publication No. CN200920090858.6;
  • FIG. 2 is an internal structural view of the one-way valve of FIG.
  • the Chinese patent document CN200920090858.6 discloses a pressure controllable stone slurry pump comprising a hydraulic drive system, a check valve 2 ⁇ and a piston type pump body 25'.
  • the hydraulic drive system mainly comprises a hydraulic cylinder 27', a hydraulic oil tank, a drive motor, a hydraulic oil pump and a valve block;
  • the piston type pump body 25' is composed of a material cylinder and a piston assembled in the cylinder, the piston and the hydraulic cylinder 27'
  • the piston rod is fixedly connected;
  • the check valve 21' has a feed chamber 34', a discharge chamber 36' and a suction and discharge chamber 35', and the suction and discharge chamber 35' communicates with the suction and discharge port of the cylinder;
  • the feed chamber 34' A first valve 37' is disposed between the suction and discharge chamber 35', and a second valve 38' is disposed between the suction and discharge chamber 35' and the discharge chamber 36'. Please refer to the full text of the application for details.
  • the technical problem to be solved by the present invention is to provide a pumping mechanism of a material pumping device, which can complete two suction and discharge processes in the reciprocating motion of the mortar piston, and enhance the continuity of the spraying operation. Greatly improve the working efficiency of material pumping equipment.
  • Another technical problem to be solved by the present invention is to provide a material pumping apparatus including the above pumping mechanism.
  • the present invention provides a pumping mechanism of a material pumping device, comprising a transport cylinder, a transport cylinder piston and a piston rod disposed in the transport cylinder, and the piston rod is connected to the power device of the pumping mechanism
  • the rod chamber and the rodless chamber of the delivery cylinder are respectively connected to the suction tube of the pumping mechanism through the first valve and the second valve, and the rod chamber and the rodless chamber respectively pass through the third valve and the fourth valve and the chamber
  • the discharge pipe of the pumping mechanism is in communication; when the delivery cylinder piston moves toward the rodless cavity end, the second valve and the third valve are closed, the first valve and the fourth valve are opened; When the cylinder piston moves toward the rod end, the second valve and the third valve are opened, and the first valve and the fourth valve are closed.
  • the discharge pipe and the suction pipe are symmetrically disposed above and below the conveying cylinder, the first valve and/or the second valve and/or the third valve and/or The fourth valve is a one-way gravity ball valve.
  • the discharge pipe and the suction pipe are respectively disposed above and below the conveying cylinder, and the first valve, the second valve, the third valve and the fourth valve are respectively It is a one-way gravity ball valve.
  • the first valve and / or the second valve and / or the third valve and / or the fourth valve are valves that are opened or closed by an actuator.
  • the power unit includes a cylinder and a cylinder piston that drives the cylinder to reciprocate
  • the hydraulic pump is fixedly connected to the cylinder piston.
  • the cylinder and the delivery cylinder are connected by a mounting bracket including a connecting rod connected between the rod end cap of the cylinder and the rod end cap of the delivery cylinder.
  • a detecting member that detects movement of the piston rod to a front end limit position or a rear end limit position is further included to control the commutation of the piston rod.
  • the piston rod comprises a fixedly connected front piston rod and a rear piston rod, a front end of the front piston rod is connected to the delivery cylinder piston, and a rear end of the rear piston rod is connected to the cylinder piston And in the reciprocating motion of the piston rod, the connection between the front piston rod and the rear piston rod is always in the mounting bracket.
  • the length of the mounting bracket, the stroke of the delivery cylinder, the stroke of the cylinder, the length of the front piston rod, and the length of the rear piston rod are all equal.
  • the outer portion of the front piston rod is provided with a wear-resistant member.
  • the wear-resistant component is a wear-resistant bushing that is fitted outside the front-end piston rod.
  • the invention provides a pumping mechanism of a material pumping device, wherein a rod cavity and a rodless cavity of the conveying cylinder are respectively connected with a suction pipe of the pumping mechanism through a first valve and a second valve, and have a rod cavity,
  • the rodless chamber communicates with the discharge tube of the pumping mechanism through the third valve and the fourth valve respectively; when the delivery cylinder piston moves toward the rodless chamber end, the second valve and the third valve are closed, The first valve and the fourth valve are open; when the delivery cylinder piston moves toward the rod end, the second valve and the third valve are opened, and the first valve and the fourth valve are closed.
  • the reciprocating movement of the conveying cylinder piston of the pumping mechanism can realize the process of two feeding and discharging at one time, compared with the prior art, the piston rod reciprocates once to perform one suction and discharging.
  • the pumping mechanism of the material the pumping mechanism provided by the invention enhances the continuity of the spraying operation, greatly improves the working efficiency, and has the structural unit and the processing and processing side. The characteristics of the stool.
  • the invention provides a material pumping device, comprising a hopper and a stirring device for stirring materials; further comprising a pumping mechanism as described above, wherein the suction pipe of the pumping mechanism is connected to the discharge port of the hopper .
  • the material pumping device is specifically a mortar spraying machine.
  • the material pumping device including the pumping mechanism should also have corresponding technical effects, and details are not described herein.
  • Fig. 1 is a schematic view showing the structure of a slurry pump disclosed in Chinese Patent Publication No. CN200920090858.6;
  • Figure 2 is an internal structural view of the one-way valve of Figure 1;
  • FIG. 3 is a schematic structural view of a specific embodiment of a pumping mechanism of a material pumping device provided by the present invention.
  • Figure 4 is a left side view of Figure 3;
  • Fig. 5 is a schematic structural view showing a specific embodiment of a material pumping apparatus provided by the present invention.
  • a one-way valve 2 ⁇ a piston type pump body 25'; a hydraulic cylinder 27'; a feed chamber 34'; a suction and discharge chamber 35' ; discharge chamber 36'; first valve 37'; second valve 38';
  • the core of the invention is to provide a pumping mechanism of the material pumping device, which can complete two suction and discharge processes in the reciprocating motion of the mortar piston, enhance the continuity of the spraying operation, and greatly improve the material pumping equipment. Work efficiency.
  • Another core of the present invention is to provide a material pumping apparatus including the above-described pumping mechanism.
  • FIG. 3 is a schematic structural view of a specific embodiment of a pumping mechanism of a material pumping device according to the present invention
  • FIG. 4 is a left side view of FIG.
  • the pumping mechanism of the material pumping device comprises a conveying cylinder 2, a conveying cylinder piston 31 and a piston rod 3 disposed in the conveying cylinder 2.
  • the piston rod 3 is connected to the power device of the pumping mechanism; the rod chamber 21 and the rodless chamber 22 of the conveying cylinder 2 are respectively communicated with the suction tube 4 of the pumping mechanism through the first valve 41 and the second valve 42 respectively, the conveying cylinder 1
  • the rod chamber 21 and the rodless chamber 22 communicate with the discharge tube 5 of the pumping mechanism through the third valve 51 and the fourth valve 52, respectively.
  • the reciprocating movement of the conveying cylinder piston 31 of the pumping mechanism can realize the process of two suctioning and discharging, which is compared with the prior art in which the piston rod 3 reciprocates to perform one suction.
  • the pumping mechanism provided by the invention enhances the continuity of the spraying operation, greatly improves the working efficiency, and has the characteristics of simple structure and convenient manufacturing and processing.
  • the first valve 41 and/or the second valve 42 and/or the third valve 51 and/or the fourth valve 52 are unidirectional gravity ball valves, that is, the four valves are partially or completely unidirectional.
  • Gravity ball valve With this structure, in the process of pumping the mortar by the pumping mechanism, the transfer cylinder piston 31 reciprocates in the transfer cylinder 2 to form a positive pressure or a negative pressure in the rod chamber 21 and the rodless chamber 22, The positive or negative pressure can open or close the valve port of the one-way gravity ball valve.
  • the gravity ball in the one-way gravity ball valve can also automatically close the valve port by its own gravity, and no other assistance is needed in opening and closing the valve port.
  • the equipment makes the pumping mechanism have the characteristics of simple structure and convenient operation.
  • the discharge tube 5 and the suction tube 4 may be respectively disposed above and below the delivery cylinder 2, and the first valve 41, the second valve 42, the third valve 51, and the fourth valve 52 are both unidirectional gravity. Ball valve.
  • the agitator, hopper and the like of the material pumping device are usually disposed at a lower height position, with this structure, the position of the suction pipe 4 is set lower, and the material is facilitated to enter the suction pipe 4 from the hopper; Compared with the material pumping device with higher position of the suction pipe 4 and lower position of the discharge pipe 5, the pumping process of conveying the material from the hopper to the suction pipe 4 with higher position is saved, so that the material is pumped.
  • the pumping process of the equipment is more convenient and quicker.
  • each of the above valves is not limited to the configuration using a one-way gravity ball valve, and other types of valves may be used, such as the first valve 41 and/or the second valve 42 and/or the third valve 51 and/or the first valve.
  • the four valves 52 are valves that are opened or closed by the actuator, that is, the four valves are partially or completely driven by a valve that is driven to open or close by an actuator, and the actuator may be a cylinder or an electromagnetic mechanism.
  • the actuators of the respective valves are actuated to drive the valve to be in an open or closed state in accordance with the pumping requirements described above, and the pumping effect can be achieved as well, and the pumping mechanism can be improved. effectiveness.
  • the power device may specifically include an oil cylinder 1, a cylinder piston 32 disposed in the cylinder 1, and a hydraulic pump that drives the cylinder piston 32 to reciprocate in the cylinder 1, the rear end of the piston rod 3 and the cylinder
  • the piston 32 is fixedly connected.
  • the above-mentioned power unit is not limited to the use of the oil cylinder 1, and other structures that can drive the piston of the delivery cylinder to reciprocate in the delivery cylinder can be employed.
  • a gear mechanism that meshes with the rack can be used to mesh one end of the rack with the gear. The other end is connected to the rear end of the piston rod 3; the driving gear rotates forward or reverse, and the rack can be driven to reciprocate, thereby driving the piston rod 3 to reciprocate.
  • the power unit can also employ a crank slider mechanism or the like.
  • orientation words "front” and “rear” appearing in this document mean: a position close to the side of the delivery cylinder 2 near the cylinder 1 in the extending direction of the cylinder 1 and the delivery cylinder 2;
  • the orientation word “inside” “Outside,” means: in the cross section of the delivery cylinder 2, close to the axial centerline of the delivery cylinder 2, away from the axial centerline.
  • the hydraulic pump may be a variable pump.
  • the number of commutations per minute of the cylinder 1 is changed by the variable pump to adjust the flow rate of the oil inlet of the cylinder 1, thereby adjusting the reciprocating speed of the piston rod 3 provided between the cylinder 1 and the delivery cylinder 2 and per minute.
  • the number of commutations, and thus the stepless adjustment of the pumping displacement allows the operator to change the amount of spraying according to the actual situation, which greatly enhances the work flexibility and adaptability of the mortar spraying machine.
  • the above-described hydraulic pump is not limited to the configuration of the variable pump, and the above-described hydraulic pump can be used as a fixed pump, and a speed control valve (throttle valve) is also connected between the fixed pump and the cylinder 1. In this way, the stepless adjustment of the pumping displacement can also be achieved by adjusting the flow rate of the governor valve.
  • the above-described hydraulic pump can also be arranged as a metering pump, and the metering pump can be directly connected to the cylinder 1. Users can choose according to their own needs.
  • the cylinder 1 and the delivery cylinder 2 are connected by a mounting bracket 6, and the mounting bracket 6 includes a rod end cover connected to the cylinder 1 and a rod end of the delivery cylinder 2. Connecting rod between the covers.
  • the cylinder 1 and the delivery cylinder 2 can be fixedly connected in a single manner, thereby enhancing the strength and working stability of the pumping mechanism.
  • the pumping mechanism may further include a detecting member that detects movement of the piston rod 3 to the front end limit position or the rear end limit position to control the commutation of the piston rod 3.
  • the detecting component may be a proximity switch 61 provided on the connecting rod for detecting displacement of the piston rod 3.
  • the proximity switch 61 detects the displacement signal of the piston rod 3, and sends the signal to the hydraulic directional control valve of the pumping mechanism to reverse the direction. Starting the reverse pumping conveying operation; conversely, when the piston rod 3 moves to the rear end limit position, the proximity switch 61 also detects the displacement signal of the piston rod 3, and sends a signal to the hydraulic reversing valve to reverse the direction, thereby realizing the piston rod 3 reciprocating motion.
  • the detecting component may be specifically a proximity switch 61.
  • the proximity switch 61 has the characteristics of high sensitivity, can shorten the reaction time of the piston rod 3 in the commutation direction, and ensures the pumping continuity of the pumping mechanism is better.
  • the detecting component is not limited to the proximity switch 61 provided on the connecting rod, and may be a pressure sensor provided on the conveying cylinder 2 or the cylinder 1, and the pressure sensor detects during the reciprocating motion of the piston rod 3.
  • the pressure of the cylinder 2 or the cylinder 1 is transmitted to know whether the piston rod 3 is moved to the front end limit position or the rear end limit position, and then the signal is sent to the control unit of the pumping mechanism to realize the reversing movement of the piston rod 3.
  • the front and rear ends of the connecting rod may be provided with the proximity switch 61, that is, the two proximity switches 61 respectively detect whether the piston rod 3 reaches the front and rear limit positions, so that the pumping mechanism has accurate positioning.
  • the above pumping mechanism can also employ other numbers of detecting components.
  • the operation of the piston rod 3 can be detected by the detecting member to determine the timing at which the delivery cylinder piston 31 is reversed.
  • the detecting member will The commutation signal is sent to the actuator to drive the corresponding valve to open or close.
  • the piston rod 3 may include a fixedly connected front piston rod and a rear piston rod.
  • the front end of the front piston rod is connected to the delivery cylinder piston 31, and the rear end of the rear piston rod and the cylinder piston 32.
  • the connection, and in the reciprocating motion of the piston rod 3, the connection between the front piston rod and the rear piston rod is always in the mounting bracket 6.
  • the front piston rod can be used.
  • the thicker and rear piston rods are set to be thinner; or the front piston rod is made of wear-resistant metal, and the rear piston rod is made of general-purpose metal, which makes the design cost of the piston rod reasonable and does not cause resources. Waste.
  • the length of the mounting bracket 6, the stroke of the delivery cylinder 2, the stroke of the cylinder 1, the length of the front piston rod, and the length of the rear piston rod are all equal.
  • the connection between the front piston rod and the rear piston rod is located at the foremost end of the mounting bracket 6, and when the piston rod 3 moves to the last end, the front piston rod and the rear portion
  • the connection of the piston rod is located at the last end of the mounting bracket 6, so that the piston rod length of the pumping mechanism is optimally matched with the stroke of the delivery cylinder and the cylinder stroke based on the beneficial effects of the above-described segmented piston rod. Sex, which can achieve maximum distance pumping and maximize the production cost of each component.
  • the two-stage piston rod structure of the pumping mechanism is configured such that the length of the front piston rod is greater than the stroke length of the delivery cylinder 2, the length of the rear piston rod is greater than the stroke length of the cylinder 1, and the length of the mounting bracket satisfies the above two piston rods
  • the installation requirements to save costs and optimize the layout are all within the scope of protection of the present invention.
  • piston rod 3 is not limited to the above two-stage structure, and may be provided as an integrally formed integral structure.
  • the front and rear ends of the piston rod 3 of the unitary structure are respectively connected to the delivery cylinder piston 31 and the cylinder piston 32, so that The piston rod 3 has the advantages of a structural unit and a convenient manufacturing process.
  • the outer portion of the front piston rod may be provided with a wear-resistant member.
  • the wear-resistant member may be a wear sleeve 34 that is fitted to the outside of the front piston rod.
  • the above-mentioned wear-resistant component is not limited to the above-mentioned wear-resistant bushing 34, and a wear-resistant metal layer may be plated on the outside of the front-end piston rod, and the wear-resistant metal layer can also reduce the wear of the piston rod 3 and prolong the wear.
  • At least one layer of sealing members 33 may be provided between the wear sleeve 34 and the rod end cover of the delivery cylinder 2 at the rear end of the delivery cylinder 2.
  • the sealing member 33 it is possible to ensure a seal between the reciprocating movement of the piston rod 3 and the rod end cover of the delivery cylinder 2, ensuring The stability of the material handling process.
  • the above sealing member 33 may employ a multi-layer sealing device to further enhance the sealing effect.
  • the rod end cover of the delivery cylinder 2 and the sealing member 33 may be provided with a grease hole, and the inner end of the grease hole communicates between the sealing member 33 and the wear sleeve 34.
  • the lubrication system of the mortar spraying machine can fill the grease between the sealing member 33 and the wear sleeve 34 through the grease hole, thereby reducing the wear between the wear sleeve 34 and the sealing member 33, and ensuring the seal.
  • the service life of the piston rod 3 is further extended.
  • the grease is continuously injected through the grease hole, so that the grease forms a continuous positive pressure between the wear sleeve 34 and the sealing member 33, and the mortar is prevented from entering between the wear sleeve 34 and the sealing member 33. Prevents wear due to mortar entry.
  • FIG. 5 is a schematic structural view of a specific embodiment of a material pumping device according to the present invention.
  • the present invention provides a material pumping apparatus comprising a hopper 100 and a stirring device for stirring materials; further comprising a pumping mechanism 200 as above, a suction pipe 4 of the pumping mechanism 200 and a hopper 100.
  • the discharge port is connected.
  • the suction tube 4 may include a first suction tube connected to the first valve 41 and a second suction tube connected to the second valve 42.
  • the first suction tube and the second suction tube pass The middle tube is connected.
  • the first suction pipe and the second suction pipe can be respectively connected with the discharge port of the hopper 100, so as to ensure faster suction during the pumping process and accelerate work efficiency;
  • the manner in which the suction tube 4 and the hopper 100 are connected is not limited to the above, and the intermediate tube may be connected to the hopper 100.
  • the material pumping device is specifically a mortar spraying machine. It should be noted that the above specific embodiment only introduces the beneficial technical effect of the material pumping device including the above pumping mechanism by taking the mortar spraying machine as an example. In fact, the above pumping mechanism is not limited to the mortar spraying machine. It can also be used in other material pumping equipment.
  • the mortar spraying machine including the pumping mechanism should also have corresponding technical effects, which will not be described herein.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种物料泵送设备的泵送机构,其输送缸的有杆腔(21)、无杆腔(22)分别通过第一阀门(41)、第二阀门(42)与泵送机构的吸料管(4)连通,有杆腔(21)、无杆腔(22)分别通过第三阀门(51)、第四阀门(52)与泵送机构的排料管(5)连通;当输送缸活塞(31)向无杆腔(22)端移动时,第二阀门(42)和第三阀门(51)关闭,第一阀门(41)和第四阀门(52)打开;当输送缸活塞(31)向有杆腔(21)端移动时,第二阀门(42)和第三阀门(51)打开,第一阀门(41)和第四阀门(52)关闭。该泵送机构能提高喷涂作业的连续性。还公开了一种包括上述泵送机构的物料泵送设备。

Description

一种泵送机构及包括该泵送机构的物料泵送设备 本申请要求于 2012 年 01 月 11 日提交中国专利局、 申请号为 201210007416.7、发明名称为 "一种泵送机构及包括该泵送机构的物料泵送 设备"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
本发明涉及工程机械技术领域, 尤其涉及一种物料泵送设备的泵送机 构。 此外, 本发明还涉及一种包括上述泵送机构的物料泵送设备。
背景技术
砂浆喷涂机是一种常用的物料泵送设备, 它是将砂浆分散成雾状喷涂 到待涂物体表面上的一种机械, 适合加固、 找平、 粉刷, 可以用于内外墙 普通砂浆抹灰, 抹平石膏、 保温砂浆、 粘结砂浆、 石灰粉刷, 修补粉刷、 面灰, 粘瓷砖和填补灰浆等。
砂浆喷涂机主要由泵送机构、 动力装置、 空压机、 搅拌装置和料斗等 几大部分组成, 其工作原理为: 在动力装置的驱动下, 砂浆物料倒入料斗, 搅拌装置均匀搅拌后, 经泵送机构输送至前端的出料口, 通过空压机输出 的高压气体吹散物料, 使得物料均匀地喷涂到物体表面。
请参考图 1和图 2,图 1为中国专利文献 CN200920090858.6公开的一 种砂浆泵的结构示意图; 图 2为图 1中的单向阀的内部结构图。
如图所示, 中国专利文献 CN200920090858.6公开了一种压力可控石少 浆泵, 该压力可控砂浆泵包括液压驱动系统、单向阀 2Γ和活塞式泵体 25'。 液压驱动系统主要包括液压缸 27'、 液压油箱、 驱动电机、 液压油泵和阀组 等部件; 活塞式泵体 25'由料缸和装配于料缸内的活塞组成,该活塞与液压 缸 27'的活塞杆固定连接; 单向阀 21 '具有进料腔 34'、 出料腔 36'和吸排料 腔 35', 该吸排料腔 35'与料缸的吸排料口连通; 进料腔 34'与吸排料腔 35' 之间设有第一阀门 37', 吸排料腔 35'与出料腔 36'之间设有第二阀门 38'。 详细内容请参考申请文件全文。
采用这种结构, 泵送过程中, 当活塞式泵体 25'的活塞向液压缸 27'方 向移动时, 吸料腔 35'中的砂浆打开第一阀门 37'进入吸排料腔 35'、 活塞式 泵体的无杆腔; 当活塞式泵体 25'的活塞向单向阀 2Γ方向移动时, 活塞式 泵体无杆腔、吸排料腔 35'中的砂浆打开第二阀门 38'进入出料腔 36', 进而 通过其他输送缸排出。
由此可见, 中国专利文献 CN200920090858.6公开的压力可控 、浆泵 能够实现砂浆的泵送, 然而, 这种砂浆泵的活塞式泵体往复运动一次只能 完成一次吸料、 排料过程, 导致砂浆泵的工作效率较低。
有鉴于此, 亟待针对上述技术问题, 对现有物料泵送设备的泵送机构 进行优化设计, 使其在砂浆活塞的往复运动中能够完成两次吸料、 排料过 程, 增强泵送作业的连续性, 提高物料泵送设备的工作效率。
发明内容
本发明要解决的技术问题为提供一种物料泵送设备的泵送机构, 该泵 送机构在在砂浆活塞的往复运动中能够完成两次吸料、 排料过程, 增强喷 涂作业的连续性, 大幅度提高物料泵送设备的工作效率。 本发明要解决的 另一个技术问题为提供一种包括上述泵送机构的物料泵送设备。
为解决上述技术问题, 本发明提供一种物料泵送设备的泵送机构, 包 括输送缸、 设于输送缸内的输送缸活塞和活塞杆, 所述活塞杆连接所述泵 送机构的动力装置; 输送缸的有杆腔、 无杆腔分别通过第一阀门、 第二阀 门与所述泵送机构的吸料管连通, 有杆腔、 无杆腔分别通过第三阀门、 第 四阀门与所述泵送机构的排料管连通; 当输送缸活塞向无杆腔端移动时, 所述第二阀门和所述第三阀门关闭, 所述第一阀门和所述第四阀门打开; 当输送缸活塞向有杆腔端移动时, 所述的第二阀门和第三阀门打开, 所述 第一阀门和第四阀门关闭。
优选地,所述排料管、所述吸料管对称设于所述输送缸的上方和下方, 所述第一阀门和 /或所述第二阀门和 /或所述第三阀门和 /或所述第四阀门为 单向重力球阀。
优选地, 所述排料管、 所述吸料管分别设于所述输送缸的上方、 下方, 所述第一阀门、 所述第二阀门、 所述第三阀门和所述第四阀门均为单向重 力球阀。
优选地, 所述第一阀门和 /或所述第二阀门和 /或所述第三阀门和 /或所 述第四阀门为由执行机构驱动打开或关闭的阀门。
优选地, 所述动力装置包括油缸和驱动所述油缸的油缸活塞往复运动 的液压泵, 所述活塞杆与所述油缸活塞固定连接。
优选地, 所述油缸和所述输送缸通过安装架连接, 所述安装架包括连 接于所述油缸的有杆腔端盖和所述输送缸的有杆腔端盖之间的连接杆。
优选地, 还包括检测所述活塞杆移动至前端极限位置或后端极限位置 的检测部件, 以便控制所述活塞杆的换向。
优选地, 所述活塞杆包括固定连接的前段活塞杆和后段活塞杆, 所述 前段活塞杆的前端与所述输送缸活塞连接, 所述后段活塞杆的后端与所述 油缸活塞连接, 且在所述活塞杆的往复运动中, 所述前段活塞杆与所述后 段活塞杆的连接处始终处于所述安装架内。
优选地, 所述安装架的长度、 所述输送缸的行程、 所述油缸的行程、 所述前段活塞杆的长度和所述后段活塞杆的长度均相等。
优选地, 所述前段活塞杆的外部设有耐磨部件。
优选地, 所述耐磨部件为套装于所述前段活塞杆外部的耐磨轴套。 本发明提供一种物料泵送设备的泵送机构, 其输送缸的有杆腔、 无杆 腔分别通过第一阀门、 第二阀门与所述泵送机构的吸料管连通, 有杆腔、 无杆腔分别通过第三阀门、 第四阀门与所述泵送机构的排料管连通; 当输 送缸活塞向无杆腔端移动时, 所述第二阀门和所述第三阀门关闭, 所述第 一阀门和所述第四阀门打开; 当输送缸活塞向有杆腔端移动时, 所述的第 二阀门和第三阀门打开, 所述第一阀门和第四阀门关闭。
采用这种结构, 当动力装置驱动输送缸活塞向无杆腔端移动时, 由于 第二阀门和第三阀门关闭, 第一阀门和第四阀门打开, 因此吸料管内的砂 浆通过第一阀门进入有杆腔, 与此同时, 无杆腔内的砂浆通过第四阀门排 入排料管, 进行砂浆的泵送; 当动力装置驱动输送缸活塞向有杆腔端移动 时, 由于第二阀门和第三阀门打开, 第一阀门和第四阀门关闭, 因此吸料 管的砂浆通过第二阀门进入无杆腔, 与此同时, 有杆腔内的砂浆通过第三 阀门排入排料管, 进行砂浆的泵送。
由上述工作过程可以看出, 这种泵送机构的输送缸活塞往复运动一次 能够实现两次吸料、 排料的过程, 相比现有技术中活塞杆一次往复运动至 进行一次吸料、 排料的泵送机构来说, 本发明所提供的泵送机构增强喷涂 作业的连续性, 大幅度提高了工作效率, 并且具有结构筒单、 制作加工方 便的特点。
本发明所提供一种物料泵送设备, 包括料斗和用于搅拌物料的搅拌装 置; 还包括如上所述的泵送机构, 所述泵送机构的吸料管与所述料斗的出 料口连通。
优选地, 所述物料泵送设备具体为砂浆喷涂机。
由于上述泵送机构具有上述技术效果, 因此, 包括该泵送机构的物料 泵送设备也应当具有相应的技术效果, 在此不再赘述。
附图说明
图 1为中国专利文献 CN200920090858.6公开的一种 、浆泵的结构示 意图;
图 2为图 1中的单向阀的内部结构图;
图 3为本发明所提供物料泵送设备的泵送机构的一种具体实施方式的 结构示意图;
图 4为图 3的左视图;
图 5 为本发明所提供物料泵送设备的一种具体实施方式的结构示意 图。
其中, 图 1和图 2中的部件名称与附图标记之间的对应关系为: 单向阀 2Γ; 活塞式泵体 25'; 液压缸 27'; 进料腔 34'; 吸排料腔 35'; 出料腔 36'; 第一阀门 37'; 第二阀门 38';
图 3至图 5中的部件名称与附图标记之间的对应关系为:
油缸 1 ; 输送缸 2; 活塞杆 3; 吸料管 4; 排料管 5; 安装架 6; 有杆腔 21 ; 无杆腔 22; 输送缸活塞 31 ; 油缸活塞 32; 密封部件 33; 耐磨轴套 34; 第一阀门 41 ; 第二阀门 42; 第三阀门 51 ; 第四阀门 52; 接近开关 61 ; 料斗 100; 泵送机构 200。
具体实施方式
本发明的核心为提供一种物料泵送设备的泵送机构, 其在在砂浆活塞 的往复运动中能够完成两次吸料、 排料过程, 增强喷涂作业的连续性, 大 大提高物料泵送设备的工作效率。 本发明的另一核心为提供一种包括上述 泵送机构的物料泵送设备。
为了使本领域的技术人员更好地理解本发明的技术方案, 下面以砂浆 喷涂机为例, 结合附图和具体实施例对本发明作进一步的详细说明。
请参考图 3和图 4, 图 3为本发明所提供物料泵送设备的泵送机构的 一种具体实施方式的结构示意图; 图 4为图 3的左视图。
在一种具体实施方式中, 如图 3和图 4所示, 本发明提供的物料泵送 设备的泵送机构, 包括输送缸 2、 设于输送缸 2内的输送缸活塞 31和活塞 杆 3 , 活塞杆 3连接泵送机构的动力装置; 输送缸 2的有杆腔 21、 无杆腔 22分别通过第一阀门 41、 第二阀门 42与泵送机构的吸料管 4连通, 输送 缸 1的有杆腔 21、无杆腔 22分别通过第三阀门 51、第四阀门 52与泵送机 构的排料管 5连通。 当输送缸活塞 31向无杆腔 22端移动时, 第二阀门 42 和第三阀门 51关闭, 第一阀门 41和第四阀门 52打开; 当输送缸活塞 31 向有杆腔 21端移动时, 第二阀门 42和第三阀门 51打开, 第一阀门 41和 第四阀门 52关闭。
采用这种结构,当动力装置驱动输送缸活塞 31向无杆腔 22端移动时, 由于第二阀门 42和第三阀门 51关闭, 第一阀门 41和第四阀门 52打开, 因此吸料管 4内的砂浆通过第一阀门 41进入有杆腔 21 , 与此同时, 无杆 腔 22内的砂浆通过第四阀门 52排入排料管 5 , 进行砂浆的泵送; 当动力 装置驱动输送缸活塞 31向有杆腔 21端移动时,由于第二阀门 42和第三阀 门 51打开, 第一阀门 41和第四阀门 52关闭, 因此吸料管 4的砂浆通过第 二阀门 42进入无杆腔 22, 与此同时,有杆腔 21内的砂浆通过第三阀门 51 排入排料管 5 , 进行砂浆的泵送。
由上述工作过程可以看出,这种泵送机构的输送缸活塞 31往复运动一 次能够实现两次吸料、 排料的过程, 相比现有技术中活塞杆 3—次往复运 动至进行一次吸料、 排料的泵送机构来说, 本发明所提供的泵送机构增强 喷涂作业的连续性, 大幅度提高了工作效率, 并且具有结构筒单、 制作加 工方便的特点。
还可以进一步设置上述各个阀门的具体结构形式。
在具体的方案中, 上述第一阀门 41和 /或第二阀门 42和 /或第三阀门 51和 /或第四阀门 52为单向重力球阀, 即上述四个阀门部分或全部地采用 单向重力球阀。 采用这种结构, 在泵送机构泵送砂浆的过程中, 输送缸活 塞 31在输送缸 2内往复运动使有杆腔 21、 无杆腔 22内形成正压或负压, 通过该正压或负压即可打开或关闭单向重力球阀的阀口, 单向重力球阀中 的重力球还可以利用自身重力自动关闭阀口, 在打开和关闭阀口的过程中 无需其他辅助设备, 使得泵送机构具有结构筒单、 操作方便的特点。
更进一步地, 上述排料管 5、 吸料管 4可以分别设于输送缸 2的上方、 下方, 第一阀门 41、 第二阀门 42、 第三阀门 51和第四阀门 52均为单向重 力球阀。 采用这种结构, 由于四个重力单向球阀能够在自身重力作用下关 闭阀口, 为了配合重力单向球阀的工作特性, 将排料管 5和吸料管 4分别 设于输送缸 2的上方、 下方, 从而筒单、 方便地实现了泵送机构的泵送。
此外, 由于物料泵送设备的搅拌器、 料斗等装置通常设置于高度较低 的位置, 采用这种结构, 将吸料管 4的设置的位置较低, 方便物料从料斗 进入吸料管 4; 相比较吸料管 4的位置较高、 排料管 5的位置较低的物料 泵送设备, 节省了将物料从料斗输送至位置较高的吸料管 4的泵送过程, 使得物料泵送设备的泵送过程更加方便、 快捷。
当然, 上述各个阀门也并不仅限于采用单向重力球阀的结构形式, 还 可以采用其他种类的阀门,例如上述第一阀门 41和 /或第二阀门 42和 /或第 三阀门 51和 /或第四阀门 52为由执行机构驱动打开或关闭的阀门, 即上述 四个阀门部分或全部地采用由执行机构驱动打开或关闭的阀门, 执行机构 可采用油缸或电磁机构等。 这样, 在输送缸活塞 31的往复运动过程中, 启 动各个阀门的执行部件, 使其按照上述泵送需要来驱动阀门处于打开或者 关闭状态, 同样能够实现上述泵送效果, 提高泵送机构的工作效率。
还可以进一步设置上述泵送机构的动力装置的具体结构形式。
在一种具体实施方式中, 上述动力装置可以具体包括油缸 1、 在油缸 1中设置油缸活塞 32,以及驱动油缸活塞 32在油缸 1中往复运动的液压泵, 上述活塞杆 3的后端与油缸活塞 32固定连接。采用这种结构形式, 当需要 活塞杆 3带动输送缸活塞 31在输送缸 2往复运动时,只需控制油缸 1的液 压油, 即可筒单地驱动油虹活塞 32往复运动, 从而带动与油虹活塞 32固 定连接的活塞杆 3往复运动。 由此可见, 采用油缸 1作为动力装置, 能够 筒单方便地实现泵送机构的泵送作业。 当然, 上述动力装置也并不仅限于 采用油缸 1 , 还可以采用其他可驱动输送缸活塞在输送缸内往复运动的结 构。 例如可以采用齿轮与齿条啮合的传动机构, 将齿条一端与齿轮啮合, 另一端与活塞杆 3的后端连接; 驱动齿轮正转或者反转, 即可带动齿条进 行往复运动, 进而带动活塞杆 3进行往复运动。 此外, 动力装置还可以采 用曲柄滑块机构等。
此外, 本文中出现的方位词 "前"、 "后" 指的是: 在油缸 1与输送缸 2 的延伸方向上靠近输送缸 2—侧、靠近油缸 1一侧的位置;方位词 "内"、"外,, 指的是: 在输送缸 2的横截面上, 靠近输送缸 2轴向中心线、 远离轴向中 心线的位置。应当理解,这些方位词的出现是以说明书附图为基础设立的, 它们的出现不应当影响本发明的保护范围。
还可以进一步设置上述动力装置的具体结构形式。
具体的方案中, 上述液压泵可以为变量泵。 采用这种结构, 通过变量 泵调节油缸 1的进油口流量大小来改变油缸 1每分钟换向次数, 从而调节 设于油缸 1和输送缸 2之间的活塞杆 3的往复运动速度和每分钟换向次数, 进而实现泵送排量的无级调节, 使得操作人员能够根据实际情况改变喷涂 量大小, 这大大增强了砂浆喷涂机的工作灵活性和适应性。
当然, 上述液压泵并不仅限于变量泵的结构形式, 还可以将上述液压 泵设为定量泵, 在定量泵与油缸 1之间还连接有调速阀 (节流阀)。 这样, 通过调节调速阀的通流量, 同样能够实现泵送排量的无级调节。 除此之外, 上述液压泵还可以筒单地设置为定量泵, 将定量泵直接与油缸 1连接。 用 户可以根据自身需要自行选择。
还可以进一步设置上述油缸 1与活塞杆 3的具体连接方式。
在另一种具体实施方式中, 如图 3所示, 油缸 1和输送缸 2通过安装 架 6连接, 安装架 6包括连接于油缸 1的有杆腔端盖和输送缸 2的有杆腔 端盖之间的连接杆。 采用这种方式可以筒单地将油缸 1和输送缸 2固定连 接, 从而增强泵送机构的强度和工作稳定性。
进一步的方案中, 上述泵送机构还可以包括检测活塞杆 3移动至前端 极限位置或后端极限位置的检测部件, 以便控制所述活塞杆 3的换向。
具体的方案中, 上述检测部件可以为设于所述连接杆上, 用于检测所 述活塞杆 3位移的接近开关 61。
采用这种结构, 当活塞杆 3运动到前端极限位置时, 此时接近开关 61 检测到活塞杆 3位移信号,发出该信号至泵送机构的液压换向阀使其换向, 开始反向的泵送输送作业; 反之, 当活塞杆 3运动到后端极限位置时, 接 近开关 61同样检测活塞杆 3位移信号, 发出信号至液压换向阀使其换向, 从而实现活塞杆 3的往复运动。 具体地, 上述检测部件可以具体为接近开 关 61 , 接近开关 61具有灵敏度高的特点, 可以缩短活塞杆 3的换向的反 应时间, 保证泵送机构的泵送连续性较好。
当然, 上述检测部件并不仅限设于连接杆上的接近开关 61 , 还可以为 压力传感器, 该压力传感器设于输送缸 2或者油缸 1上, 在活塞杆 3的往 复运动中, 该压力传感器检测输送缸 2或者油缸 1的压力, 从而获知活塞 杆 3是否移动至前端极限位置或者后端极限位置, 进而发出信号至泵送机 构的控制单元, 实现活塞杆 3的换向运动。
更具体的方案中, 上述连接杆的前后两端均可以设置上述接近开关 61 , 即两个接近开关 61分别检测活塞杆 3是否到达前、 后两个极限位置, 使得泵送机构具有定位准确的特点。 当然, 上述泵送机构还可以采用其他 数量的检测部件。
此外, 如采用由执行机构驱动打开或关闭的阀门, 也可通过检测部件 检测活塞杆 3的运行情况以确定输送缸活塞 31换向的时间点,当输送缸活 塞 31换向时,检测部件将该换向信号发送给执行机构以驱动相应的阀门打 开或关闭。
还可以进一步设置输送缸 2与活塞杆 3的其他具体结构。
在另一种具体实施方式中, 上述活塞杆 3可以包括固定连接的前段活 塞杆和后段活塞杆,前段活塞杆的前端与输送缸活塞 31连接,后段活塞杆 的后端与油缸活塞 32连接,且在活塞杆 3的往复运动中,前段活塞杆与后 段活塞杆的连接处始终处于安装架 6内。
采用这种结构, 由于在活塞杆 3的往复运动中, 前段活塞杆与后段活 塞杆的连接处始终处于安装架 6内, 即前段活塞杆只在输送缸 2和安装架 6内往复运动, 后段活塞杆只在油缸 1和安装架 6内往复运动, 使得前段 活塞杆和后段活塞杆的运动互不干涉。 由于输送缸 2用于输送砂浆, 前段 活塞杆在往复运动中受到砂浆的摩擦力较大, 而油缸 2内液压油对后端活 塞杆的摩擦力较小, 因此, 采用上述两段式活塞杆的结构, 能够针对前段 活塞杆和后段活塞杆不同的需要进行相应的设计, 例如可以将前段活塞杆 设置的较粗、后端活塞杆设置的较细; 或者将前段活塞杆选用耐磨性金属, 而将后段活塞杆选用一般性能的金属, 这使得活塞杆的设计成本合理, 不 会造成资源的浪费。
具体的方案中, 上述安装架 6的长度、 输送缸 2的行程、 油缸 1的行 程、 前段活塞杆的长度和后段活塞杆的长度均相等。
采用这种结构, 当活塞杆 3运动至最前端时, 前段活塞杆与后段活塞 杆的连接处位于安装架 6的最前端, 当活塞杆 3运动至最后端时, 前段活 塞杆与后段活塞杆的连接处位于安装架 6的最后端, 因此, 在上述分段式 活塞杆的有益效果的基础上,这种泵送机构的活塞杆长度与输送缸的行程、 油缸行程达到最佳匹配性, 既能实现最大距离的泵送, 又能最大程度地节 省各个部件的生产成本。
上述泵送机构的两段式活塞杆结构, 设置前段活塞杆的长度大于输送 缸 2的行程长度, 后段活塞杆的长度大于油缸 1的行程长度, 并且安装架 的长度满足上述两段活塞杆的安装要求, 以起到节约成本、 优化布局的效 果, 均属于本发明的保护范围内。
此外, 上述活塞杆 3并不仅限于上述两段式结构, 还可以设置为一体 成型的整体结构, 该整体结构的活塞杆 3的前、 后两端分别连接输送缸活 塞 31和油缸活塞 32 , 这样的活塞杆 3具有结构筒单、 加工制造方便的优 点。
还可以进一步设置上述前段活塞杆的具体结构。
进一步的方案中,上述前段活塞杆的外部可以设有耐磨部件。具体地, 如图 3所示, 上述耐磨部件可以为套装于所述前段活塞杆外部的耐磨轴套 34。通过设置耐磨轴套 34能够避免砂浆对前段活塞杆直接磨损,起到保护 活塞杆 3的作用, 延长活塞杆 3的使用寿命, 进一步保证了泵送机构的工 作稳定性。 当然, 上述耐磨部件并不仅限于上述耐磨轴套 34, 还可以在前 段活塞杆的外部镀一层耐磨金属层, 该耐磨金属层同样能够起到减小活塞 杆 3的磨损, 延长活塞杆 3的使用寿命的作用。
进一步的方案中, 在输送缸 2的后端部, 上述耐磨轴套 34与输送缸 2 的有杆腔端盖之间可以设有至少一层密封部件 33。 通过设置密封部件 33 , 能够保证活塞杆 3往复运动中与输送缸 2的有杆腔端盖之间的密封, 保证 物料输送过程的稳定性。 为了增强密封效果,上述密封部件 33可以采用多 层密封装置, 进一步增强密封效果。
更具体的,所述输送缸 2的有杆腔端盖和上述密封部件 33上可以开设 有润滑脂孔, 润滑脂孔的内端连通至密封部件 33和耐磨轴套 34之间。 这 样,砂浆喷涂机的润滑系统可以通过该润滑脂孔向密封部件 33和耐磨轴套 34之间加注润滑脂, 减少耐磨轴套 34和密封部件 33之间的磨损, 在保证 密封的同时进一步延长了活塞杆 3的使用寿命。 此外, 通过润滑脂孔持续 地注入润滑脂, 使润滑脂在耐磨轴套 34和密封部件 33之间形成持续的正 压, 还可防止砂浆进入耐磨轴套 34和密封部件 33之间, 防止因砂浆进入 而造成的磨损。
请参考图 5 , 图 5为本发明所提供物料泵送设备的一种具体实施方式 的结构示意图。
如图 5所示, 本发明所提供一种物料泵送设备, 包括料斗 100和用于 搅拌物料的搅拌装置; 还包括如上的泵送机构 200, 泵送机构 200的吸料 管 4与料斗 100的出料口连通。
进一步的方案中,上述吸料管 4可以包括与第一阀门 41连接的第一吸 料管和与第二阀门 42连接的第二吸料管,第一吸料管和第二吸料管通过中 间管连通。 关于吸料管 4与料斗 100的连通方式, 第一吸料管、 第二吸料 管可以分别与料斗 100的出料口连通,这样能够保证泵送过程中吸料较快, 加快工作效率; 当然, 上述吸料管 4与料斗 100的连接方式并不仅限于上 述方式, 还可以采用中间管与料斗 100连通的方式。
具体地, 上述物料泵送设备具体为砂浆喷涂机。 需要说明的是, 上述 具体实施方式仅以砂浆喷涂机为例具体介绍了包括上述泵送机构的物料泵 送设备的有益技术效果, 事实上,上述泵送机构并不仅限用于砂浆喷涂机, 还可以用于其他物料泵送设备中。
由于上述泵送机构具有上述技术效果, 因此, 包括该泵送机构的砂浆 喷涂机也应当具有相应的技术效果, 在此不再赘述。
以上对本发明所提供的一种泵送机构及包括该泵送机构的物料泵送设 行了阐述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思 想。 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, 还可以对本发明进行若干改进和修饰, 这些改进和修饰也落 入本发明权利要求的保护范围内。

Claims

权 利 要 求
1、 一种物料泵送设备的泵送机构, 包括输送缸(2)、 设于输送缸(2) 内的输送缸活塞(31 )和活塞杆(3), 所述活塞杆(3)与动力装置连接; 其特征在于,
所述输送缸的有杆腔(21)、 无杆腔(22)分别通过第一阀门 (41)、 第二阀门 (42)与吸料管 (4)连通, 所述输送缸的有杆腔(21)、 无杆腔 (22)分别通过第三阀门 (51)、 第四阀门 (52)与排料管 (5)连通; 当输送缸活塞(31 ) 向无杆腔(22)端移动时, 所述第二阀门 (42) 和所述第三阀门 (51 ) 关闭, 所述第一阀门 (41 )和所述第四阀门 (52) 打开; 当输送缸活塞(31 )向有杆腔(21 )端移动时,所述的第二阀门(42) 和第三阀门 (51 )打开, 所述第一阀门 (41 )和第四阀门 (52) 关闭。
2、根据权利要求 1所述的物料泵送设备的泵送机构, 其特征在于, 所 述第一阀门 (41 )和 /或所述第二阀门 (42)和 /或所述第三阀门 (51 )和 / 或所述第四阀门 (52) 为单向重力球阀。
3、根据权利要求 2所述的物料泵送设备的泵送机构, 其特征在于, 所 述排料管(5)、 所述吸料管(4)分别设于所述输送缸(2)的上方、 下方, 所述第一阀门 (41)、 所述第二阀门 (42)、 所述第三阀门 (51 )和所述第 四阀门 (52) 均为单向重力球阀。
4、根据权利要求 1所述的物料泵送设备的泵送机构, 其特征在于, 所 述第一阀门 (41 )和 /或所述第二阀门 (42)和 /或所述第三阀门 (51 )和 / 或所述第四阀门 (52) 为由执行机构驱动打开或关闭的阀门。
5、 根据权利要求 1-4任一项所述的物料泵送设备的泵送机构, 其特征 在于, 所述动力装置包括油缸( 1 )和驱动油缸活塞( 32 )在所述油缸( 1 ) 中往复运动的液压泵, 所述活塞杆 (3) 与所述油缸活塞(32) 固定连接。
6、根据权利要求 5所述的物料泵送设备的泵送机构, 其特征在于, 所 述油缸( 1 )和所述输送缸( 2 )通过安装架( 6 )连接, 所述安装架( 6 ) 包括连接于所述油缸(1 ) 的有杆腔端盖和所述输送缸(2) 的有杆腔端盖 之间的连接杆。
7、根据权利要求 6所述的物料泵送设备的泵送机构, 其特征在于, 还 包括检测所述活塞杆( 3 )移动至前端极限位置或后端极限位置的检测部件, 以便控制所述活塞杆(3 ) 的换向。
8、根据权利要求 6所述的物料泵送设备的泵送机构, 其特征在于, 所 述活塞杆(3 )包括固定连接的前段活塞杆和后段活塞杆, 所述前段活塞杆 的前端与所述输送缸活塞(31 )连接, 所述后段活塞杆的后端与所述油缸 活塞( 32 )连接, 且在所述活塞杆 ( 3 )的往复运动中, 所述前段活塞杆与 所述后段活塞杆的连接处始终处于所述安装架(6 ) 内。
9、根据权利要求 8所述的物料泵送设备的泵送机构, 其特征在于, 所 述安装架(6 ) 的长度、 所述输送缸(2 ) 的行程、 所述油缸(1 ) 的行程、 所述前段活塞杆的长度和所述后段活塞杆的长度均相等。
10、 根据权利要求 8所述的物料泵送设备的泵送机构, 其特征在于, 所述前段活塞杆的外部设有耐磨部件。
11、 根据权利要求 10所述的物料泵送设备的泵送机构, 其特征在于, 所述耐磨部件为套装于所述前段活塞杆的外部的耐磨轴套( 34 )。
12、 一种物料泵送设备, 包括料斗和用于搅拌物料的搅拌装置; 其特 征在于, 还包括如权利要求 1-11任一项所述的泵送机构, 所述泵送机构的 吸料管 (4 )与所述料斗的出料口连通。
13、根据权利要求 12所述的物料泵送设备, 其特征在于, 具体为砂浆 喷涂机。
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CN115045523B (zh) * 2021-03-08 2024-01-26 广东博智林机器人有限公司 流质体供料系统

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