WO2012034419A1 - 混凝土输送泵润滑系统及混凝土泵送设备 - Google Patents

混凝土输送泵润滑系统及混凝土泵送设备 Download PDF

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Publication number
WO2012034419A1
WO2012034419A1 PCT/CN2011/075529 CN2011075529W WO2012034419A1 WO 2012034419 A1 WO2012034419 A1 WO 2012034419A1 CN 2011075529 W CN2011075529 W CN 2011075529W WO 2012034419 A1 WO2012034419 A1 WO 2012034419A1
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Prior art keywords
pump
lubrication
grease
concrete
oil
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Ceased
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PCT/CN2011/075529
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English (en)
French (fr)
Inventor
汤如龙
李建涛
蒋琼
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Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
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Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
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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 WO2012034419A1 publication Critical patent/WO2012034419A1/zh
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Ceased legal-status Critical Current

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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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/18Lubricating

Definitions

  • the invention relates to the technical field of concrete pumping equipment, and in particular to a concrete pump lubrication system.
  • the invention also relates to a concrete pumping apparatus having the above-described concrete pump lubrication system.
  • Concrete pumping equipment such as concrete pump, pump truck, vehicle pump, wet spray machine, etc., in the process of pumping concrete, in order to ensure a certain degree of lubrication between the movement pairs in the equipment, and prevent the penetration of cement in the conveying cylinder and wear
  • the moving parts cause slurry leakage.
  • the concrete pump lubrication system is usually used to lubricate the lubrication points of the working system such as the mixing system and pumping system of the concrete pumping equipment.
  • FIG. 1 is a schematic diagram of a typical concrete pump lubrication system in the prior art.
  • the concrete pump lubrication system includes a grease tank 1, a grease filter 2, a grease pump 3, and a grease distributor 4.
  • the grease pump 3 is a follower grease pump, and a double piston is arranged in the cavity, and the double piston divides the cavity into a first hydraulic oil chamber, a second hydraulic oil chamber, and a first lubrication chamber and a second lubrication chamber.
  • the hydraulic oil chamber and the second hydraulic oil chamber are respectively connected to the hydraulic oil source through the oil pipe A and the oil pipe B, and the first lubricating oil chamber and the second lubricating oil chamber respectively pass through the first oil suction port and the second oil suction port on the grease tank 1 respectively.
  • the oil outlet of the first lubricating oil chamber and the second lubricating oil chamber communicates with the lubrication point of the stirring system 5, the pumping system 6, and other moving pairs, and supplies grease to each lubrication point, specifically
  • the oil outlets of the first lubricating oil chamber and the second lubricating oil chamber can supply grease to each lubricating point through the grease distributor 4.
  • the hydraulic oil of the hydraulic oil source enters the first hydraulic oil chamber or the second hydraulic oil chamber through the oil pipe A or the oil pipe B, wherein one lubricating oil chamber absorbs the grease, and the other A lubricating oil chamber drains the grease, and the discharged grease lubricates the corresponding lubrication point.
  • the concrete pump lubrication system of this structure is used to drive the hydraulic oil source of the grease pump 3 from the power source of the pumping system 6.
  • the hydraulic oil source stops supplying the grease pump 3
  • the hydraulic oil that is, the lubrication system of the concrete pump stops working, the grease pump 3 can no longer supply grease to each lubrication point, and the lubrication points cannot be lubricated; at this time, the stirring system 5 is still working, in the middle of the stirring system 5
  • Each of the motion pairs still needs lubrication. If the lubrication points in the agitation system 5 are stopped, the corresponding components in the agitation system 5 are easily worn, and the service life is greatly shortened.
  • the present invention provides a concrete pump lubrication system for lubricating agitating system, pumping system, including a grease tank, a grease pump, and a grease for supplying a stirring system.
  • An auxiliary lubricating device, the oil outlet of the auxiliary lubricating device is in communication with a lubrication point of the stirring system.
  • the auxiliary lubricating device includes a first hydraulic pump driven by a hydraulic motor, the hydraulic motor is disposed on an oil returning path of the stirring system, and the oil inlet of the first hydraulic pump and the grease tank In communication, the oil outlet of the first hydraulic pump is in communication with a lubrication point of the agitation system.
  • a pressure regulating valve is arranged at the oil inlet of the hydraulic motor.
  • the auxiliary lubricating device comprises a second hydraulic pump driven by a motor, the oil inlet of the second hydraulic pump is in communication with the grease tank, and the oil outlet of the second hydraulic pump is connected to the stirring The lubrication points of the system are connected.
  • the auxiliary lubricating device includes a manual lubrication pump, and an oil inlet of the manual lubrication pump is in communication with the grease tank, and an oil outlet of the manual lubrication pump and the lubrication system of the stirring system Point to connect.
  • the auxiliary lubrication device comprises a manual pump having a separate source of grease, the oil outlet of the manual pump being in communication with a lubrication point of the agitation system.
  • the oil outlet of the auxiliary lubricating device is in communication with the lubrication point of the agitation system through a grease distributor.
  • the oil outlet of the grease pump is in communication with the oil inlet of the grease distributor.
  • the oil outlet of the grease pump and the oil outlet of the auxiliary lubricating device communicate with the oil inlet of the grease distributor through a combined three-way valve.
  • the oil outlet of the grease pump and the oil outlet of the auxiliary lubricating device communicate with the lubrication point of the stirring system through a combined three-way valve.
  • the concrete pump lubrication system provided by the invention further comprises an auxiliary lubricating device for supplying grease to the lubrication point of the stirring system based on the existing grease box and the grease pump, and the lubricating oil of the auxiliary lubricating device
  • the port is in communication with the lubrication point of the agitation system.
  • the auxiliary lubrication device can provide lubrication grease to the lubrication point of the agitation system to lubricate the movement pair during the operation of the agitation system, so that the components in the agitation system are not easy to wear and prolong their service life.
  • the auxiliary lubricating device includes a first hydraulic pump driven by a hydraulic motor, the hydraulic motor is disposed on a returning oil passage of the stirring system, and the oil inlet of the first hydraulic pump is in communication with the grease tank, The oil outlet of a hydraulic pump is in communication with the lubrication point of the agitation system.
  • the concrete pump lubrication system of this structure adopts a first hydraulic pump driven by a hydraulic motor as an auxiliary lubricating device, and the hydraulic motor is disposed on the oil returning path of the stirring system, and the stirring system returns the oil circuit to provide rotational power to the first hydraulic pump.
  • Intermittent grease to the lubrication point of the mixing system to provide lubrication to the uninterrupted mixing system.
  • the lubrication point of the mixing system is lubricated without additional power, and the first hydraulic pump is oiled.
  • the port is connected to the grease tank and does not require an additional oil source.
  • the present invention also provides a concrete pumping apparatus having the above-described concrete pump lubrication system, which has the above technical effects due to the above-described concrete pump lubrication system
  • the lubrication system of the pump should also have the corresponding technical effect.
  • FIG. 1 is a schematic diagram of a typical concrete pump lubrication system in the prior art
  • FIG. 2 is a schematic view showing the principle of a concrete pump lubrication system according to a first embodiment of the present invention
  • Figure 3 is a schematic view showing the principle of a concrete pump lubrication system according to a second embodiment of the present invention.
  • Figure 4 is a schematic view showing the principle of a concrete pump lubrication system according to a third embodiment of the present invention.
  • Figure 5 is a schematic view showing the principle of a concrete pump lubrication system according to a fourth embodiment of the present invention.
  • Grease tank 1 grease filter 2, grease pump 3, grease distributor 4, agitation system 5, pumping system 6; first hydraulic pump 7, second hydraulic pump 71, manual lubrication pump 72, manual pump 73, Hydraulic motor 8, motor 81, pressure regulator 9, first combined three-way valve 91, second combined three-way valve 92, fuel tank 10, power machine 11, main oil pump 12, double pump 13, main valve group 14, safety valve 15.
  • FIG. 2 is a schematic diagram of the principle of the lubrication system of the concrete pump according to the first embodiment of the present invention.
  • the concrete pump lubrication system provided by the present invention further comprises an auxiliary lubricating device for supplying grease to the lubrication point of the stirring system 5, based on the existing grease tank 1 and the grease pump 3, the auxiliary lubricating device
  • the oil outlet is in communication with the lubrication point of the agitation system 5.
  • the auxiliary lubricating device can provide lubrication to the lubrication point of the stirring system 5 when the stirring system 5 is working, and lubricate the motion pair therein, so that the components in the stirring system 5 can be made.
  • the parts are not easy to wear and prolong their service life.
  • the grease pump 3 is a follower grease pump having a double piston in the cavity, the double piston separating the cavity into a first hydraulic oil chamber, a second hydraulic oil chamber and a first lubrication
  • the first lubricating oil chamber and the second hydraulic oil chamber are respectively connected to the hydraulic oil source through the oil pipe, and the first lubricating oil chamber and the second lubricating oil chamber respectively pass through the first oil suction port on the grease tank 1
  • the second oil suction port is connected to the grease tank 1.
  • a grease filter 2 is disposed at the oil outlet of the grease tank 1; the first lubricating oil chamber and the second lubricating oil chamber The oil outlet communicates with the lubrication point of the pumping system 6 to provide grease to each lubrication point of the pumping system 6.
  • the lubricating oil of the hydraulic oil source enters the first hydraulic oil chamber or the second hydraulic oil chamber through the oil pipe, one lubricating oil chamber absorbs the grease, the other lubricating oil chamber discharges the grease, and the discharged lubricating grease lubricates the pumping system 6. Point to lubricate.
  • the hydraulic oil source used to drive the grease pump 3 comes from the power source of the hydraulic control system of the concrete pump.
  • the hydraulic control system of the concrete pump is described below.
  • the control principle of the hydraulic control system of the concrete pump is shown in Fig. 2.
  • the power source includes the main oil pump 12 and the double pump 13 driven by the power machine 11, and the oil suction ports of the main oil pump 12 and the double pump 13 are all connected with the oil tank 10.
  • the oil outlet of the main oil pump 12 communicates with the oil inlet of the main valve group 14 that controls the operation of the main valve; one pump of the double pump 13 drives the stirring system 5 through the stirring valve group 19, and the oil outlet of the other pump can be
  • the safety valve 15, the pressure reducing valve 16, the accumulator 17, the switching valve group 18, and the like communicate with the first hydraulic oil chamber and the second hydraulic oil chamber of the grease pump 3 to drive the grease pump 3 to operate.
  • the auxiliary lubrication device comprises a first hydraulic pump 7 driven by a hydraulic motor 8, which is provided on the oil return path of the agitation system 5, the oil inlet of the first hydraulic pump 7 and the grease The tank 1 is in communication, and the oil outlet of the first hydraulic pump 7 is in communication with the lubrication point of the agitation system 5.
  • the concrete pump lubrication system of this structure adopts the first hydraulic pump 7 driven by the hydraulic motor 8 as an auxiliary lubricating device, and the hydraulic motor 8 is disposed on the oil returning path of the stirring system 5, and the stirring system 5 returns the oil path to provide rotational power to
  • the first hydraulic pump 7 generates intermittent grease to the lubrication point of the agitation system 5 to provide lubrication to the uninterrupted agitation system 5, and as long as the agitation system 5 is in operation, the lubrication point of the agitation system 5 is lubricated without additional Power, and first The oil inlet of the hydraulic pump 7 is connected to the grease tank 1 and does not require an additional oil source.
  • This type of structure is simple in structure and low in cost.
  • a pressure stabilizing valve 9 is provided at the oil inlet of the hydraulic motor 8.
  • the oil outlet of the first hydraulic pump 7 can be communicated through the oil inlet of the grease distributor 4, and the grease distributor 4 can more conveniently lubricate the different lubrication points of the agitation system 5.
  • the concrete pump lubrication system of this solution uses an auxiliary lubrication device to separately lubricate the lubrication point of the agitation system 5, and the grease pump 3 only lubricates the lubrication point of the pumping system 6, It is understood that the present invention is not limited to this solution, and the grease pump 3 can also simultaneously lubricate the lubrication point of the stirring system 5, such as connecting the oil outlet of the lubrication pump with the oil inlet of the grease distributor 4. Such a solution should also be within the scope of the present invention.
  • the driving force of the auxiliary lubricating device is derived from the oil pressure of the agitation system 5, and the independent power source is used to drive the hydraulic pump to supply the lubricating point to the lubrication point of the agitation system 5.
  • FIG. 3 is a schematic diagram of the principle of the lubrication system of the concrete pump according to the second embodiment of the present invention.
  • the auxiliary lubricating device includes a second hydraulic pump 71 driven by a motor 81.
  • the oil inlet of the second hydraulic pump 71 communicates with the grease tank 1, and the oil outlet of the second hydraulic pump 71 and the stirring system 5 The lubrication points are connected.
  • the concrete pump lubrication system of this structure is driven by an independently arranged motor 81 to supply the second hydraulic pump 71 with grease to the lubrication point of the stirring system 5, and the power source is independent, and can be affected by the working condition of the stirring system 5, and can be used as needed
  • the agitation system 5 is lubricated.
  • the motor 81 is used as the driving force for supplying the grease
  • the present invention also includes the use of the human power as the driving force to supply the grease to the stirring system 5.
  • FIG. 4 is a schematic diagram showing the principle of a concrete pump lubrication system according to a third embodiment of the present invention.
  • the auxiliary lubrication device includes a manual lubrication pump 72, and the manual lubrication pump An oil inlet of 72 is communicated with the grease tank 1, and an oil outlet of the manual lubrication pump 72 is in communication with a lubrication point of the stirring system 5.
  • the concrete pump lubrication system of this structure uses a manual lubrication pump 72 to supply grease to the lubrication point of the agitation system 5, which does not require any external power, can save energy consumption, and has low equipment cost.
  • the remaining specific embodiments are similar to the above embodiments, and will not be described in detail herein.
  • the grease pump 3 can also be used to lubricate the lubrication point of the stirring system 5, as shown in FIG. 4, the oil outlet of the manual lubrication pump 72 and the oil outlet of the grease pump 3
  • the first combined three-way valve 91 communicates with the oil inlet of the grease distributor 4.
  • the grease pump 3 supplies grease to the stirring system 5.
  • the manual lubricating pump 72 can be used for stirring. System 5 is lubricated.
  • the oil source of the grease provided by the auxiliary lubricating device is derived from the grease tank 1, and the present invention is not limited thereto, and an independent oil source may be used to supply the lubricating point to the lubrication point of the stirring system 5.
  • FIG. 5 is a schematic diagram showing the principle of a concrete pump lubrication system according to a fourth embodiment of the present invention.
  • the auxiliary lubricating device includes a manual pump 73.
  • the manual pump 73 includes an independent grease source having a certain amount of grease therein, and the oil outlet of the manual pump 73 is The lubrication point of the agitation system 5 is connected.
  • the concrete pump lubrication system of this structure the grease in the grease tank 1 is used to lubricate the lubrication point of the pumping system 6, and the manual pump 73 with an independent grease source is used to lubricate the lubrication point of the stirring system 5, for stirring
  • the lubrication of the system 5 does not depend on the existing lubrication system, and the agitation system 5 can be lubricated more conveniently and at any time.
  • the other specific embodiments are similar to the above embodiments, and will not be described in detail herein.
  • the lubricating oil pump 3 can also be used to lubricate the lubrication point of the stirring system 5, as shown in Fig. 5, the oil outlet of the manual pump 73 and the oil outlet of the grease pump 3 pass through.
  • the second combined three-way valve 92 is in communication with the oil inlet of the grease distributor 4.
  • the grease pump 3 supplies grease to the stirring system 5.
  • the manual pump 73 can be used.
  • the agitation system 5 is lubricated.
  • the present invention also provides a concrete pumping device having the above-described concrete pump lubrication system. Since the above concrete pump lubrication system has the above technical effects, the lubrication system having the concrete pump should also have The corresponding technical effect.

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

Description

混凝土输送泵润滑系统及混凝土泵送设备 本申请要求于 2010 年 09 月 14 日提交中国专利局、 申请号为 201010283912.6、 发明名称为"混凝土输送泵润滑系统及混凝土泵送设备" 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
本发明涉及混凝土泵送设备技术领域, 尤其涉及一种混凝土输送泵润 滑系统。 本发明还涉及一种具有上述混凝土输送泵润滑系统的混凝土泵送 设备。
背景技术
混凝土拖泵、 泵车、 车载泵、 湿喷机等混凝土泵送设备在泵送混凝土 的过程中, 为了保证设备中各运动副之间具有一定的润滑, 并防止输送缸 内水泥的渗入而磨损运动部件造成漏浆现象, 通常设置混凝土输送泵润滑 系统对混凝土泵送设备的搅拌系统、 泵送系统等工作系统的润滑点进行润 滑。
请参看图 1 , 图 1为现有技术中一种典型的混凝土输送泵润滑系统的 原理示意图。
如图 1所示, 该混凝土输送泵润滑系统包括润滑脂箱 1、 脂滤器 2、 润 滑脂泵 3、 润滑脂分配器 4。
润滑脂泵 3为随动润滑脂泵, 其腔体内设有双活塞, 双活塞将腔体分 隔成第一液压油腔、 第二液压油腔和第一润滑腔、 第二润滑腔, 第一液压 油腔、 第二液压油腔分别通过油管 A和油管 B与液压油源连接, 第一润滑 油腔、 第二润滑油腔分别通过润滑脂箱 1上的第一吸油口、 第二吸油口与 润滑脂箱 1连通; 第一润滑油腔、 第二润滑油腔的出油口与搅拌系统 5、 泵送系统 6及其他运动副的润滑点连通, 向各润滑点提供润滑脂, 具体的 方案中, 第一润滑油腔、 第二润滑油腔的出油口可通过润滑脂分配器 4向 各润滑点提供润滑脂。
这种结构的混凝土输送泵润滑系统, 液压油源的液压油经油管 A或油 管 B进入第一液压油腔或第二液压油腔, 其中一个润滑油腔吸润滑脂, 另 一个润滑油腔排出润滑脂, 排出的润滑脂对相应的润滑点进行润滑。
这种结构的混凝土输送泵润滑系统, 用于驱动润滑脂泵 3的液压油源 来自泵送系统 6的动力源, 泵送系统 6—旦停止工作, 液压油源就停止向 润滑脂泵 3提供液压油, 即该混凝土输送泵润滑系统停止工作, 润滑脂泵 3 无法再向各润滑点提供润滑脂, 无法对各润滑点进行润滑; 而此时搅拌 系统 5仍在工作, 搅拌系统 5的中的各运动副仍需润滑, 若停止对搅拌系 统 5中的各润滑点进行润滑, 使得搅拌系统 5中的相应元件容易磨损, 使 用寿命大大缩短。
因此, 如何研发出一种在泵送系统停止工作时、 仍可对正在工作的搅 拌系统的润滑点进行润滑的混凝土输送泵润滑系统, 成为本领域技术人员 亟待解决的技术难题。
发明内容
本发明的第一个目的是提供一种混凝土输送泵润滑系统, 该混凝土输 送泵润滑系统在泵送系统停止工作时, 仍可对正在工作的搅拌系统的润滑 点进行润滑。 本发明的另一个目的是提供一种具有上述混凝土输送泵润滑 系统的混凝土泵送设备。
为了实现上述第一个目的,本发明提供了一种混凝土输送泵润滑系统, 用于润滑搅拌系统、 泵送系统, 包括润滑脂箱、 润滑脂泵, 还包括用于向 搅拌系统提供润滑脂的辅助润滑装置, 该辅助润滑装置的出油口与所述搅 拌系统的润滑点连通。
优选的, 所述辅助润滑装置包括由液压马达驱动的第一液压泵, 所述 液压马达设于所述搅拌系统的回油路上, 所述第一液压泵的进油口与所述 润滑脂箱连通, 所述第一液压泵的出油口与所述搅拌系统的润滑点连通。
优选的, 所述液压马达的进油口处设有稳压阀。
优选的, 所述辅助润滑装置包括由电机驱动的第二液压泵, 所述第二 液压泵的进油口与所述润滑脂箱连通, 所述第二液压泵的出油口与所述搅 拌系统的润滑点连通。
优选的, 所述辅助润滑装置包括手动润滑泵, 所述手动润滑泵的进油 口与所述润滑脂箱连通, 所述手动润滑泵的出油口与所述搅拌系统的润滑 点连通。
优选的, 所述辅助润滑装置包括具有独立润滑脂源的手动泵, 所述手 动泵的出油口与所述搅拌系统的润滑点连通。
优选的, 所述辅助润滑装置的出油口通过润滑脂分配器与所述搅拌系 统的润滑点连通。
优选的, 所述润滑脂泵的出油口与所述润滑脂分配器的进油口连通。 优选的, 所述润滑脂泵的出油口、 所述辅助润滑装置的出油口通过合 流三通阀与润滑脂分配器的进油口连通。
优选的, 所述润滑脂泵的出油口、 所述辅助润滑装置的出油口通过合 流三通阀与所述搅拌系统的润滑点连通。
本发明提供的混凝土输送泵润滑系统, 在现有的润滑脂箱、 润滑脂泵 的基础上, 还包括用于向搅拌系统的润滑点提供润滑脂的辅助润滑装置, 该辅助润滑装置的出油口与所述搅拌系统的润滑点连通。 在泵送系统停止 工作时, 该辅助润滑装置可在搅拌系统工作时向搅拌系统的润滑点提供润 滑脂对其中的运动副进行润滑, 可使得搅拌系统中各元件不易磨损, 延长 其使用寿命。
优选方案中, 所述辅助润滑装置包括由液压马达驱动的第一液压泵, 所述液压马达设于搅拌系统的回油路上, 第一液压泵的进油口与所述润滑 脂箱连通, 第一液压泵的出油口与搅拌系统的润滑点连通。
这种结构的混凝土输送泵润滑系统采用由液压马达驱动的第一液压泵 作为辅助润滑装置, 且液压马达设置在搅拌系统的回油路上, 搅拌系统回 油路提供旋转动力给第一液压泵产生间断润滑脂到搅拌系统的润滑点, 给 不间断工作的搅拌系统提供润滑, 只要搅拌系统处于工作状态, 就对搅拌 系统的润滑点进行润滑, 不需额外动力, 而且第一液压泵的进油口与润滑 脂箱连通, 不需额外的油源, 这种方案结构筒单, 成本较低。
为了实现上述第二个目的, 本发明还提供了一种混凝土泵送设备, 该 混凝土泵送设备具有上述的混凝土输送泵润滑系统, 由于上述的混凝土输 送泵润滑系统具有上述技术效果, 具有该混凝土输送泵的润滑系统也应具 有相应的技术效果。 附图说明
图 1为现有技术中一种典型的混凝土输送泵润滑系统的原理示意图; 图 2为本发明第一实施例所提供的混凝土输送泵润滑系统的原理示意 图;
图 3为本发明第二实施例所提供的混凝土输送泵润滑系统的原理示意 图;
图 4为本发明第三实施例所提供的混凝土输送泵润滑系统的原理示意 图;
图 5为本发明第四实施例所提供的混凝土输送泵润滑系统的原理示意 图;
其中, 图 1-图 5中:
润滑脂箱 1、 脂滤器 2、 润滑脂泵 3、 润滑脂分配器 4, 搅拌系统 5、 泵送系统 6; 第一液压泵 7、 第二液压泵 71、 手动润滑泵 72、 手动泵 73、 液压马达 8、 电机 81、稳压阀 9、 第一合流三通阀 91、 第二合流三通阀 92、 油箱 10、 动力机 11、 主油泵 12、 双联泵 13、 主阀组 14、 安全阀 15、 减压 阀 16、 蓄能器 17、 换向阀组 18、 搅拌阀组 19。
具体实施方式
为了使本领域的技术人员更好的理解本发明的技术方案, 下面结合附 图和具体实施方式对本发明作进一步的详细说明。
请参看图 2, 图 2为本发明第一实施例所提供的混凝土输送泵润滑系 统的原理示意图。
如图 2所示, 本发明提供的混凝土输送泵润滑系统包括润滑脂箱 1、 润滑脂泵 3及辅助润滑装置, 所述辅助润滑装置的出油口与搅拌系统 5的 润滑点连通, 所述辅助润滑装置用于向搅拌系统 5提供润滑脂。
本发明提供的混凝土输送泵润滑系统, 在现有的润滑脂箱 1、 润滑脂 泵 3的基础上, 还包括用于向搅拌系统 5的润滑点提供润滑脂的辅助润滑 装置, 该辅助润滑装置的出油口与所述搅拌系统 5的润滑点连通。 在泵送 系统 6停止工作时, 该辅助润滑装置可在搅拌系统 5工作时向搅拌系统 5 的润滑点提供润滑脂对其中的运动副进行润滑, 可使得搅拌系统 5中各元 件不易磨损, 延长其使用寿命。
在一种具体的实施方式中, 润滑脂泵 3为随动润滑脂泵, 其腔体内设 有双活塞, 双活塞将腔体分隔成第一液压油腔、 第二液压油腔和第一润滑 腔、 第二润滑腔, 第一液压油腔、 第二液压油腔分别通过油管与液压油源 连通, 第一润滑油腔、第二润滑油腔分别通过润滑脂箱 1上的第一吸油口、 第二吸油口与润滑脂箱 1连通, 优选方案中, 为了对润滑脂进行过滤, 在 润滑脂箱 1的出油口处设有脂滤器 2; 第一润滑油腔、 第二润滑油腔的出 油口与泵送系统 6的润滑点连通, 向泵送系统 6的各润滑点提供润滑脂。
液压油源的润滑脂经油管进入第一液压油腔或第二液压油腔, 其中一 个润滑油腔吸润滑脂, 另一个润滑油腔排出润滑脂, 排出的润滑脂对泵送 系统 6的润滑点进行润滑。
用于驱动润滑脂泵 3的液压油源来自混凝土输送泵的液压控制系统的 动力源, 以下对混凝土输送泵的液压控制系统进行筒单介绍。
混凝土输送泵的液压控制系统的控制原理如图 2所示, 动力源包括由 动力机 11驱动的主油泵 12、 双联泵 13 , 主油泵 12、 双联泵 13的吸油口 均与油箱 10连通,主油泵 12的出油口与控制主阀工作的主阀组 14的进油 口连通; 双联泵 13的一个泵通过搅拌阀组 19驱动搅拌系统 5进行工作, 另一个泵的出油口可通过安全阀 15、 减压阀 16、 蓄能器 17、 换向阀组 18 等与润滑脂泵 3的第一液压油腔、 第二液压油腔连通, 用于驱动润滑脂泵 3进行动作。
在一种具体的实施方式中, 辅助润滑装置包括由液压马达 8驱动的第 一液压泵 7, 液压马达 8设于搅拌系统 5的回油路上, 第一液压泵 7的进 油口与润滑脂箱 1连通, 第一液压泵 7的出油口与搅拌系统 5的润滑点连 通。
这种结构的混凝土输送泵润滑系统采用由液压马达 8驱动的第一液压 泵 7作为辅助润滑装置, 且液压马达 8设置在搅拌系统 5的回油路上, 搅 拌系统 5回油路提供旋转动力给第一液压泵 7产生间断润滑脂到搅拌系统 5的润滑点, 给不间断工作的搅拌系统 5提供润滑, 只要搅拌系统 5处于 工作状态, 就对搅拌系统 5的润滑点进行润滑, 不需额外动力, 而且第一 液压泵 7的进油口与润滑脂箱 1连通, 不需额外的油源, 这种方案结构筒 单, 成本较低。
优选方案中, 为了使得液压马达 8能够以较稳定的转速工作, 在液压 马达 8的进油口处设有稳压阀 9。
优选的方案中, 第一液压泵 7的出油口可以通过润滑脂分配器 4的进 油口连通, 通过润滑脂分配器 4可以较为方便地对搅拌系统 5的不同的润 滑点进行润滑。
由上述描述及图 2可知, 这种方案的混凝土输送泵润滑系统采用辅助 润滑装置单独对搅拌系统 5的润滑点进润滑, 而润滑脂泵 3仅对泵送系统 6 的润滑点进行润滑, 可以理解, 本发明并不局限于此一种方案, 润滑脂 泵 3也可以同时对搅拌系统 5的润滑点进行润滑, 如将润滑泵的出油口与 润滑脂分配器 4的进油口连通, 这种方案也应在本发明的保护范围内。
上述实施例中, 辅助润滑装置的驱动力来自于搅拌系统 5回油路的油 压, 还可以采用独立的动力源驱动液压泵向搅拌系统 5的润滑点提供润滑 脂。
请参考图 3 , 图 3为本发明第二实施例所提供的混凝土输送泵润滑系 统的原理示意图。
如图 3所示, 辅助润滑装置包括由电机 81驱动的第二液压泵 71 , 第 二液压泵 71的进油口与润滑脂箱 1连通, 第二液压泵 71的出油口与搅拌 系统 5的润滑点连通。
这种结构的混凝土输送泵润滑系统由独立设置的电机 81 驱动第二液 压泵 71向搅拌系统 5的润滑点提供润滑脂,动力源独立,可不受搅拌系统 5工况的影响, 可根据需要随时对搅拌系统 5进行润滑。 其余具体实施方 式与上述实施例类似, 在此不再做详细介绍。
上述实施例,采用电机 81作为提供润滑脂的驱动力,本发明还包括采 用人力作为驱动力向搅拌系统 5提供润滑脂。
请参考图 4, 图 4为本发明第三实施例所提供的混凝土输送泵润滑系 统的原理示意图。
如图 4所示, 所述辅助润滑装置包括手动润滑泵 72, 所述手动润滑泵 72的进油口与所述润滑脂箱 1连通, 所述手动润滑泵 72的出油口与所述 搅拌系统 5的润滑点连通。
这种结构的混凝土输送泵润滑系统采用手动润滑泵 72 向搅拌系统 5 的润滑点提供润滑脂, 不需要任何外界动力, 可以节省能源消耗, 设备成 本较低。 其余具体实施方式与上述实施例类似, 在此不再做详细介绍。
在泵送系统 6处于工作状态时, 还可以采用润滑脂泵 3对搅拌系统 5 的润滑点进行润滑, 如图 4所示, 手动润滑泵 72的出油口、 润滑脂泵 3 的出油口通过第一合流三通阀 91与润滑脂分配器 4的进油口连通。在泵送 系统 6处于工作状态时, 由润滑脂泵 3向搅拌系统 5提供润滑脂, 在泵送 系统 6处于停止工作状态、 搅拌系统 5处于工作状态时, 可采用采用手动 润滑泵 72对搅拌系统 5进行润滑。
以上实施例中, 辅助润滑装置所提供的润滑脂的油源均来自润滑脂箱 1 ,本发明并不局限于此,还可以采用独立油源向搅拌系统 5的润滑点提供 润滑脂。
请参考图 5 , 图 5为本发明第四实施例所提供的混凝土输送泵润滑系 统的原理示意图。
如图 5所示, 所述辅助润滑装置包括手动泵 73 , 手动泵 73包括一个 独立的润滑脂源,该润滑脂源内具有一定量的润滑脂,所述手动泵 73的出 油口与所述搅拌系统 5的润滑点连通。
这种结构的混凝土输送泵润滑系统, 润滑脂箱 1里的润滑脂用于润滑 泵送系统 6的润滑点, 具有独立润滑脂源的手动泵 73用于润滑搅拌系统 5 的润滑点, 对搅拌系统 5的润滑不依赖于现有的润滑系统, 可较方便地、 随时对搅拌系统 5进行润滑。 其余具体实施方式与上述实施例类似, 在此 不再故详细介绍。
在泵送系统 6处于工作状态时, 还可以采用润滑脂泵 3对搅拌系统 5 的润滑点进行润滑, 如图 5所示, 手动泵 73的出油口、 润滑脂泵 3的出油 口通过第二合流三通阀 92与润滑脂分配器 4的进油口连通。在泵送系统 6 处于工作状态时, 由润滑脂泵 3向搅拌系统 5提供润滑脂, 在泵送系统 6 处于停止工作状态、 搅拌系统 5 处于工作状态时, 可采用采用手动泵 73 对搅拌系统 5进行润滑。
本发明还提供了一种混凝土泵送设备, 该混凝土泵送设备具有上述的 混凝土输送泵润滑系统, 由于上述的混凝土输送泵润滑系统具有上述技术 效果, 具有该混凝土输送泵的润滑系统也应具有相应的技术效果。
以上所述仅是发明的优选实施方式的描述, 应当指出, 由于文字表达 的有限性, 而在客观上存在无限的具体结构, 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
1.一种混凝土输送泵润滑系统,用于润滑搅拌系统(5)、泵送系统(6), 包括润滑脂箱 (1)、 由液压油源驱动的润滑脂泵(3), 其特征在于, 还包 括用于在泵送系统(6)停止工作时向搅拌系统(5)提供润滑脂的辅助润 滑装置, 该辅助润滑装置的出油口与所述搅拌系统(5) 的润滑点连通。
2.根据权利要求 1所述的混凝土输送泵润滑系统, 其特征在于, 所述 辅助润滑装置包括由液压马达(8)驱动的第一液压泵(7), 所述液压马达
(8)设于所述搅拌系统(5)的回油路上, 所述第一液压泵(7)的进油口 与所述润滑脂箱 (1)连通, 所述第一液压泵(7) 的出油口与所述搅拌系 统(5) 的润滑点连通。
3.根据权利要求 2所述的混凝土输送泵润滑系统, 其特征在于, 所述 液压马达(8) 的进油口处设有稳压阀 (9)。
4.根据权利要求 1所述的混凝土输送泵润滑系统, 其特征在于, 所述 辅助润滑装置包括由电机(81 )驱动的第二液压泵(71 ), 所述第二液压泵 (71 )的进油口与所述润滑脂箱(1)连通, 所述第二液压泵(71)的出油 口与所述搅拌系统(5) 的润滑点连通。
5.根据权利要求 1所述的混凝土输送泵润滑系统, 其特征在于, 所述 辅助润滑装置包括手动润滑泵(72), 所述手动润滑泵(72)的进油口与所 述润滑脂箱( 1 )连通,所述手动润滑泵( 72 )的出油口与所述搅拌系统( 5 ) 的润滑点连通。
6.根据权利要求 1所述的混凝土输送泵润滑系统, 其特征在于, 所述 辅助润滑装置包括具有独立润滑脂源的手动泵(73), 所述手动泵(73)的 出油口与所述搅拌系统(5) 的润滑点连通。
7.根据权利要求 1-6任一项所述的混凝土输送泵润滑系统, 其特征在 于,所述辅助润滑装置的出油口通过润滑脂分配器( 4 )与所述搅拌系统( 5 ) 的润滑点连通。
8.根据权利要求 7所述的混凝土输送泵润滑系统, 其特征在于, 所述 润滑脂泵(3) 的出油口与所述润滑脂分配器(4) 的进油口连通。
9.根据权利要求 8所述的混凝土输送泵润滑系统, 其特征在于, 所述 润滑脂泵(3 )的出油口、 所述辅助润滑装置的出油口通过合流三通阀与润 滑脂分配器(4 ) 的进油口连通。
10.根据权利要求 1-6任一项所述的混凝土输送泵润滑系统, 其特征在 于, 所述润滑脂泵(3 )的出油口、 所述辅助润滑装置的出油口通过合流三 通阀与所述搅拌系统(5 ) 的润滑点连通。
11.一种混凝土泵送设备, 其特征在于, 该混凝土泵送设备具有权利要 求 1-10任一项所述的混凝土输送泵润滑系统。
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CN103062043B (zh) * 2012-12-19 2016-01-20 三一汽车制造有限公司 一种混凝土泵的自动润滑系统
CN104265621A (zh) * 2014-08-01 2015-01-07 北京天地玛珂电液控制系统有限公司 一种基于内外双驱动式润滑系统的柱塞式乳化液泵
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