WO2015180082A1 - 一种搬运车 - Google Patents

一种搬运车 Download PDF

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Publication number
WO2015180082A1
WO2015180082A1 PCT/CN2014/078723 CN2014078723W WO2015180082A1 WO 2015180082 A1 WO2015180082 A1 WO 2015180082A1 CN 2014078723 W CN2014078723 W CN 2014078723W WO 2015180082 A1 WO2015180082 A1 WO 2015180082A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
operating handle
top cover
fork
motor
Prior art date
Application number
PCT/CN2014/078723
Other languages
English (en)
French (fr)
Inventor
修特·塞巴斯蒂安·亚历山大
唐海鸿
Original Assignee
浙江诺力机械股份有限公司
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 浙江诺力机械股份有限公司 filed Critical 浙江诺力机械股份有限公司
Priority to US14/654,563 priority Critical patent/US9963330B2/en
Priority to EP14879255.9A priority patent/EP2977293B1/en
Priority to PCT/CN2014/078723 priority patent/WO2015180082A1/zh
Publication of WO2015180082A1 publication Critical patent/WO2015180082A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0606—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground manually operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0618—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground using fluid lifting mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07572—Propulsion arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems

Definitions

  • the present invention relates to the field of handling machinery, and more particularly to a truck.
  • the Chinese utility model patent of the authorization announcement number CN 202864840 U, the authorization announcement date 2013. 04. 10 discloses a small electric pallet truck including a frame, a fork arranged in front of the frame and symmetrical, and mounted on the underside of the fork
  • the front load wheel rocker wheel frame mechanism is provided with a driving wheel driven by a motor on the rear side of the frame, a slewing bearing is arranged above the driving wheel, an operating handle is arranged on the driving wheel housing, and the operating handle is rotated by the slewing bearing
  • a power box is arranged on the frame, a battery is arranged in the power box, a built-in charger connected to the controller and a hydraulic pump station system assembly are arranged above the battery, and the hydraulic pump station system assembly controls the fork
  • the battery is supplied to the controller, the motor and the hydraulic pump station system assembly, and the operating handle has an accelerator and an emergency reverse controller.
  • the existing electric pallet trucks have shortcomings.
  • the hydraulic pumping station is bulky, takes up a lot of space, and has high cost.
  • its overall volume is relatively large, and the vehicle is running. The stability is not good enough.
  • the object of the present invention is to provide a van for a prior art, which is simple in structure, low in cost, easy to operate, small in size, small in space occupation, and good in stability.
  • a transport vehicle including a frame, a fork connected to the frame, a driven wheel mounted on the fork, a battery device, an operating handle, and a hydraulic pressure a pump station system, a top cover fixedly coupled to the frame; and a drive wheel device for driving the carriage to travel;
  • the hydraulic pump station system includes a drive mechanism and a pump body having a pump casing, the pump body The upper end is fixedly connected to the top cover, the lower end is connected to the driving wheel device, and the pump casing is provided with a handle mounting portion connected to the operating handle, and the pump body can be driven by the driving mechanism Lifting the top cover, and the pump body is unpowered to lower the top cover under the control of the operating handle;
  • the driving mechanism is located at the handle mounting portion opposite to the pump body and away from the fork One side.
  • the existing truck is large in size, compact in structure and not stable in operation because of its large volume, especially the existing hydraulic pumping station system. More complicated, in addition to the cylinder connected to the top cover, it also includes the motor, oil pump, fuel tank, electromagnetic reversing valve, etc. After assembly, it is generally fixed on the frame, which is very large and bulky, making the whole The body of the truck becomes longer, and the distance between the driving wheel and the driven wheel becomes larger, which increases the volume and affects the stability of the vehicle operation. For this, we treat the entire truck. Description
  • the hydraulic pumping station system has been optimized to reduce its volume as much as possible.
  • the pump body integrates the fuel tank and the oil cylinder, which greatly reduces the entire hydraulic pumping station system.
  • the volume reduces the length of the entire forklift and improves the smoothness of its movement.
  • it is directly realized by the driving mechanism when it rises.
  • using the operating handle to control the descent speed is more conducive to the balance of safety and efficiency of the article.
  • said drive mechanism includes a motor and a hydraulic pump coupled to said motor, said motor and said pump casing being fixedly coupled.
  • the motor and hydraulic pump can be connected directly or through connectors such as couplings.
  • the motor and the hydraulic pump are arranged vertically.
  • the vertical arrangement of the motor and hydraulic pump reduces the volume in the lateral direction, making the entire truck compact. Compared to the lateral arrangement, the vertical arrangement makes the truck more compact and easy to handle. Walking, reducing its impact on the stability of the truck, and at the same time, does not affect the normal operation of the operating handle; thus ensuring the compact structure of the entire truck and the stability of walking.
  • the pump casing includes a manual check valve having a positive inlet and a positive outlet disposed within the pump casing, a transfer cylinder disposed within the pump casing and fixedly coupled to the top cover, and a high pressure oil inlet connected to the forward outlet in the pump casing, an oil storage chamber communicating with the forward inlet, and an oil outlet communicating with the oil storage chamber.
  • the manual check valve and the operating handle are connected, and the operating handle is manually controlled to realize the unpowered lowering of the top cover and the conveying cylinder; the ascending is driven by the driving mechanism to drive the hydraulic oil in the oil storage chamber, and the conveying cylinder is jacked up, and The manual check valve is placed inside the pump casing, further reducing the volume of the entire truck.
  • the pump casing is provided with a bottom plate extending away from the fork; the bottom plate edge is provided with an upwardly extending fence, the motor is fixed on the bottom plate, and the fence is at least The motor is partially enclosed.
  • the bottom plate is arranged on the pump casing to facilitate the fixed connection of the motor, so that the motor and the pump casing are fixedly integrated, and rotate together when the forklift is working.
  • the baffle can surround part or all of the motor to protect it.
  • the function can also strengthen the structural strength; while ensuring the compact structure, the firmness of the motor installation is ensured, and the stability of the truck during operation is ensured.
  • the handle mounting portion includes a pair of hinged mounting plates; the hinge mounting plate, the pump casing, the bottom plate and the fence plate are integrally formed or assembled separately.
  • the integrally formed structure is reassembled and integrated with respect to the respective manufactures, which can be used for mass production, has a high yield of products, has a low reject rate, and more importantly, in this application, an integral molding method is adopted.
  • the hinged mounting plate, the pump casing, the bottom plate and the surrounding baffle are formed to form a one-piece piece; the installation and disassembly space between the various components that should be present is omitted, and the volume thereof is further reduced, so that the structure of the integral piece is extremely compact.
  • the hydraulic pump is located below the motor.
  • the hydraulic pump is located below the motor so that the motor is located above the hydraulic pump, and the hydraulic pump is connected to the pump casing.
  • This setting is compared with the normal hydraulic pump set above the motor for maintenance.
  • the purpose of this technical solution is to make the structure of the truck compact and stable, and to set the hydraulic solution to keep the hydraulic pump away from the delivery cylinder.
  • the delivery cylinder is connected to the top cover. If the hydraulic pump is located above the motor, when it is connected to the pump casing, the hydraulic line connected to the pump casing will be connected from top to bottom, so that one is to make the pipeline go.
  • the complicated form of the pipe increases the complexity of the structure of the truck and increases the volume of the truck. The other one will affect the normal operation of the operating handle, causing interference to the handle and affecting the stability of the entire truck. Therefore, the hydraulic pump
  • the way of setting under the motor makes the connection with the pump casing more compact and does not affect the operator. The normal work.
  • the operating handle is provided with a pair of connecting members hinged with the handle mounting portion, and a driving mechanism passage opening is provided between the pair of connecting members.
  • the pair of connectors are located on both sides of the drive mechanism.
  • the connecting members are located on both sides of the driving mechanism, which ensures the connection strength between the operating handle and the handle mounting portion, and effectively utilizes the space between the connecting members, so that when the operating handle is operated, the driving mechanism can pass through the opening through the driving mechanism. At the same time, the space under the original operating handle is also effectively utilized.
  • the drive mechanism is at least partially below the operating handle.
  • a truck comprising a frame, a fork connected to the frame, a driven wheel mounted on the fork, a battery device, an operating handle, a hydraulic pumping station system, and a top of the frame fixedly connected a driving wheel device and an electric appliance controller for driving the transportation of the truck;
  • the hydraulic pumping station system includes a driving mechanism and a pump body having a pump casing, and the upper end of the pump body and the top cover are fixedly connected, The lower end is connected to the driving wheel device, and the pump casing is provided with a handle mounting portion connected to the operating handle, and the pump body can lift the top cover under the driving of the driving mechanism, and the The pump body can be unpowered to lower the top cover under the control of the operating handle;
  • the driving mechanism is located at a side of the handle mounting portion opposite to the pump body and away from the fork, and the electrical control The device is fixed to the pump body.
  • the invention has the advantages of simple and compact structure, low price, easy operation, small volume, small occupied space and stable work. DRAWINGS
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 is a perspective view of Figure 1;
  • FIG 3 is a schematic structural view of the hydraulic pump station system of Figure 1;
  • Figure 4 is a schematic view of the conveying cylinder of Figure 1 installed in the pump casing;
  • Figure 5 is a schematic view showing the structure of the manual control check valve in the pump casing of Figure 4.
  • FIG. 6 is a schematic structural diagram of Embodiment 2 of the present invention.
  • Embodiment 1 see FIG. 1, 2, 3, 4, 5, a truck, including a frame 1, a fork 2 connected to the frame 1, and two forks 2, symmetrically arranged, in stock
  • the fork 2 is mounted with a driven wheel 3, a battery device 4, an operating handle 5,
  • the battery device 4 includes a battery and a battery box, and the battery box and the frame are fixedly connected;
  • a top cover 7 is also fixed on the frame; and is used for driving the electric motor
  • the drive wheel device 8 of the truck travels, the above-mentioned structural devices are well-known technologies, and will not be described in detail herein; and the hydraulic pump station system 6 is different from the existing hydraulic pump station system; in the present embodiment, the hydraulic pump The station system 6 includes a driving mechanism 601 and a pump body 602 having a pump casing 60201.
  • the driving mechanism 601 includes a motor 60101 and a hydraulic pump 60102 connected to the motor 60101.
  • the motor 60104 and the pump casing 60201 are fixedly connected; the hydraulic pump can adopt a gear pump and a blade.
  • the pump and the hydraulic pump can be directly connected to the motor, or can be connected by a connecting member such as a coupling.
  • the motor drives the hydraulic pump to work, and the upper end of the pump body 602 and the top cover 7 are fixedly connected, the pump The lower end of the body is connected to the driving wheel device 8.
  • the pump casing 60201 is provided with a handle mounting portion 9 connected to the operating handle 5, and the pump body 602 is driven by the driving mechanism 601. Description
  • the raising of the top cover 7 is realized, and the pump body 602 realizes the powerless lowering of the top cover 7 under the control of the operating handle 5;
  • the driving mechanism 601 is located on the other side of the handle mounting portion 9 and is opposite to the pump body 602 from the fork 2
  • the driving mechanism adopts such a mounting position, located on the outer side of the pump body; that is, on the other side of the handle mounting portion opposite to the pump body, capable of being away from the fork; saving space under the top cover and shortening the driving wheel of the truck The distance between the driven wheel and the driven wheel; and in order to make the overall structure of the truck more compact, we set the motor 60101 and the hydraulic pump 60102 vertically; moreover, the hydraulic pump 60102 is located below the motor, wherein, preferably, the driving mechanism 601
  • the longitudinal center profile (longitudinal direction extending along the length of the fork 2) coincides with the longitudinal profile of the entire truck.
  • the pump body 602 includes a pump casing 60201, a manual check valve 60203 having a forward inlet a and a forward outlet b disposed in the pump casing 60201, and a delivery cylinder 60207 disposed in the pump casing 60201, the pump The casing 60201 is provided with a high-pressure oil inlet 60204 communicating with the forward outlet, an oil storage chamber 60205 communicating with the forward inlet, and an oil outlet 60206 communicating with the oil reservoir 60205.
  • a safety valve 60202 may be disposed inside the pump casing 60201, or may be externally installed. Safety valve; The number of safety valves 60202 can be determined according to actual needs to ensure the safety of the entire hydraulic system.
  • the pump outlet of the hydraulic pump 60102 is connected to the high pressure oil inlet 60204, and the pump inlet of the hydraulic pump 60102 is connected to the oil outlet 60206.
  • a check valve (not shown in the drawing) for the hydraulic oil to flow from the hydraulic pump 60102 to the high pressure oil inlet 60204 is provided between the pump outlet of the 60102 and the high pressure oil inlet 60204, and the check valve can be a check valve. , plate or stacked check valves are also available.
  • the motor drives the hydraulic pump to rotate.
  • the hydraulic oil enters the pump casing 60201 from the pump outlet through the high-pressure oil inlet 60204, so that the delivery cylinder 60207 rises, and the top cover is lifted up to a predetermined position. When it is required to descend, the operation is performed.
  • the handle 5 is operated to make the manual control check valve reversely. Under the gravity of the top cover and the like, the hydraulic oil flows from the positive inlet a to the forward outlet b, and enters the oil storage chamber 60205 to realize the top cover 7
  • the powerless drop is reduced, which saves an electromagnetic reversing valve that controls the lifting and lowering compared with the existing truck, which reduces the cost and reduces the oil leakage.
  • the pump body 602 can also employ a well-known hand pump and can retain the hand pressure portion.
  • the pump casing 60201 is provided with a bottom plate 60208 extending away from the fork 2; the bottom plate 60208 is provided with a baffle 60209 at the edge thereof, and the baffle extends upward to partially or completely enclose the motor, and surround
  • the plate 60209 is disposed at the edge of the bottom plate 60208, extends upward, and forms a surrounding structure with the pump casing, enclosing a part of the motor, or may be completely surrounded; the motor 60101 is fixed on the bottom plate 60208, and the handle mounting portion 9 is disposed on the baffle plate.
  • the handle mounting portion 9 includes a pair of hinged mounting plates; further; the hinged mounting plate, the pump casing 60201, the bottom plate 60208 and the surrounding baffle 60209 are integrally formed or assembled separately, wherein the integral molding is preferred, and the handle mounting portion may also be a whole plate for connecting with the operating handle.
  • the operating handle 5 is provided with a pair of connecting members hinged to the handle mounting portion 9.
  • a pair of connecting members 10 are provided with a driving mechanism through the mouth 11;
  • the connecting member 10 can be made of a plate, the shape is determined according to the actual situation, and the pin shaft is matched with the operating handle and the handle mounting portion to realize the operating handle
  • the driving mechanism ensures the normal operation of the operating handle through the formation of the mouth; when the driving mechanism 601 is located in the driving mechanism through port 11, a pair of connecting members 10 are located on both sides of the driving mechanism 601, in order to make as much as possible
  • the structure is compact.
  • the driving mechanism 601 is at least partially located under the operating handle 5. From the top to the bottom, the projection of the carrying handle is partially coincident with the projection of the driving mechanism, and the overlapping portion As close as possible to the pump casing.
  • the manual check valve 60203 includes an axial valve sleeve 6020301 and an axial inlet valve cartridge 6020302 fixedly connected to the axial valve sleeve 6020301.
  • the axial inlet valve core 6020302 and the axial valve sleeve are fixed in the valve core hole of the housing, and there is a gap between the screw cover 6020304 and the valve core hole to facilitate the passage of hydraulic oil, and the valve stem sleeve 6020306 is screwed and fixed.
  • the end of the spool hole, the other end of the spool bore corresponding to the stem sleeve 6020306 is a high pressure oil inlet 60204;
  • the ram 6020307 is matedly inserted into the stem sleeve 6020306 and the axial sleeve 6020301, and It can make axial sliding, its power to push the steel ball comes from the external operating handle, the restoring force comes from the ejector spring;
  • the positive inlet a is set at the end of the axial valve sleeve 6020301, and the positive outlet b is set at the axial direction.
  • the push valve core 6020303 is disposed in the axial inlet valve core 6020302, and the axial inlet valve core 6020302 is provided with a sealing valve port that cooperates with the push valve core 6020303, and the axial inlet valve core 6020302 and the axial valve sleeve 6020301 are passed through the rivet. Or welded to be integrated.
  • Embodiment 2 see FIG. 6; a type of truck, including a frame 1, a fork 2 connected to the frame 1, two forks 2, a symmetrical arrangement, and a driven wheel 3 mounted on the fork 2
  • the battery device 4, the operating handle 5, the battery device 4 includes a battery and a battery box, and the battery box and the frame are fixedly connected; a top cover 7 is fixed on the frame; and a driving wheel device 8 for driving the electric vehicle to travel
  • the electrical controller 12 the above structural devices are well-known technologies, and will not be described in detail herein; and the hydraulic pumping station system 6 is different from the existing hydraulic pumping station system; in the present embodiment, the hydraulic pumping station system 6
  • the driving mechanism 601 includes a pump body 602 having a pump casing 60201.
  • the driving mechanism 601 includes a motor 60101 and a hydraulic pump 60102 connected to the motor 60101.
  • the motor 60104 and the pump casing 60201 are fixedly connected; the hydraulic pump can adopt a gear pump, a vane pump, and a hydraulic pump.
  • the pump can be directly connected to the motor, or can be connected by a connecting member such as a coupling.
  • the motor drives the hydraulic pump to work, and the upper end of the pump body 602 and the top cover 7 are fixedly connected.
  • the moving wheel device 8 is connected, and the pump casing 60201 is provided with a handle mounting portion 9 connected to the operating handle 5.
  • the pump body 602 is driven by the driving mechanism 601 to raise the top cover 7, and the pump body 602 is realized under the control of the operating handle 5.
  • the driving mechanism 601 is located on the other side of the handle mounting portion 9 and the side of the pump body 602 opposite to the fork 2; the driving mechanism is disposed at the outer side of the pump casing; Opposite the pump body, located on the other side of the handle mounting portion, can be away from the fork; save space under the top cover, shorten the distance between the driving wheel and the driven wheel of the truck; and in order to make the overall structure of the truck more compact,
  • the electrical controller 12 on the pump body 602 in such a manner as to facilitate the installation, maintenance and maintenance of the electrical controller 12; preferably, the electrical controller 12 is located on the longitudinal side of the pump body 602.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Handcart (AREA)

Abstract

一种搬运车，包括车架（1）、和所述车架（1）连接的货叉（2）、安装在所述货叉（2）上的从动轮（3）、蓄电池装置（4）、操作手柄（5）、液压泵站系统（6）、和所述车架（1）固定连接的顶盖（7）；以及用于驱动所述搬运车行走的驱动轮装置（8）；所述液压泵站系统（6）包括驱动机构（601）及具有泵壳（60201）的泵体（602），所述泵体（602）上端和所述顶盖（7）固定连接，下端和所述驱动轮装置（8）连接，所述泵壳（60201）上设有和操作手柄（5）连接的手柄安装部（9），所述泵体（602）可在所述驱动机构（601）的驱动下顶升所述顶盖（7），并且所述泵体（602）可在驱动机构（601）的驱动下顶升所述顶盖（7），并且所述泵体（602）可在所述操作手柄（5）控制下无动力下降所述顶盖（7）；所述驱动机构（601）位于所述操作手柄安装部（9）的与所述泵体（602）相对且远离所述货叉（2）的一侧。该搬运车结构简单、紧凑、价格低廉、操作容易、体积小、占用空间小、工作平稳。

Description

说 明 书
一种搬运车
技术领域
本发明涉及搬运机械技术领域， 更具体的说涉及一种搬运车。
背景技术
授权公告号 CN 202864840 U、 授权公告日 2013. 04. 10的中国实用新型专利公开了一种 小型电动搬运车， 包括车架、 设置在车架前方且左右对称的货叉以及安装在货叉底面前方的 承重轮摇臂轮架机构， 在车架的后侧设置有由电机驱动的驱动轮， 在驱动轮上方设置回转轴 承， 驱动轮壳体上设置有操作手柄， 依靠回转轴承来转动操作手柄达到转向， 在车架上设置 有电源箱， 电源箱内设置有蓄电池， 蓄电池上方设置有与控制器连接的内置式充电机、 液压 泵站系统总成， 液压泵站系统总成控制货叉的升降， 蓄电池给控制器、 电机及液压泵站系统 总成供电， 所述的操作手柄上有设置加速器及紧急反向控制器。
但是， 在实际的工作中我们发现， 现有电动搬运车存在不足之处， 首先其液压泵站， 体 积大、 占用空间多， 成本高； 其次， 其整体体积相对较大， 车辆在运行时候的稳定性不够 好。
发明内容
本发明的目的是提供针对现有技术的不足之处， 提供一种搬运车， 其结构简单、 价格低 廉， 操作容易， 体积小、 占用空间小， 稳定性好。
为了解决上述技术问题， 本发明的技术方案如下： 一种搬运车， 包括车架、 和所述车架 连接的货叉、 安装在所述货叉上的从动轮、 蓄电池装置、 操作手柄、 液压泵站系统、 和所述 车架固定连接的顶盖； 以及用于驱动所述搬运车行走的驱动轮装置； 所述液压泵站系统包括 驱动机构及具有泵壳的泵体， 所述泵体上端和所述顶盖固定连接， 下端和所述驱动轮装置连 接， 所述泵壳上设有和所述操作手柄连接的手柄安装部， 所述泵体可在所述驱动机构的驱动 下顶升所述顶盖， 并且所述泵体可在所述操作手柄控制下无动力下降所述顶盖； 所述驱动机 构位于所述手柄安装部的与所述泵体相对且远离所述货叉的一侧。
本申请人经过反复的研究、 试验以及分析后发现， 现有的搬运车之所以体积大、 结构不 紧凑、 运行不够平稳， 是因为其体积比较大， 尤其是现有的液压泵站系统， 其比较复杂， 除 去和顶盖连接的油缸之外， 还包括电机、 油泵、 油箱、 电磁换向阀等件， 其组装之后， 一般 都固定在车架上， 体积十分庞大， 庞大的体积， 使得整个搬运车的车身变长， 驱动轮和从动 轮之间的距离变大， 增加了体积的同时， 还影响车辆运行的稳定性； 为此我们对整个搬运车 说 明 书
的液压泵站系统进行了优化， 尽可能的减小其体积， 首先， 我们采用的是泵体来配合驱动机 构， 泵体将油箱及油缸集成在一起， 大幅度的降低了整个液压泵站系统的体积， 减小了整个 叉车的长度， 提高了其移动时候的平稳性， 同时， 上升的时候直接通过驱动机构实现， 下降 的时候， 依靠车架等被顶升物重量的重力实现无动力下降， 这就省却了一个电磁换向阀， 简 化了结构， 减小了体积， 同时， 利用操作手柄控制下降速度更有利于物品安全和效率的平 衡； 其次； 我们对驱动机构的安装位置进行了优化； 在整个液压泵站系统的组成被确定下来 之后， 如何进一步的减小搬运车的体积， 又成了我们研究的课题， 我们经过长时间的研究并 结合大量的实物试验以及仔细的分析之后， 对驱动机构的安装位置进行了优化； 我们将驱动 机构的安装位置， 设置在泵体的外侧； 也就是和泵体相对的位于手柄安装部的另一侧， 远离 货叉； 这样的设置方式， 节省了原来需要在顶盖下设置的驱动机构安放空间； 可以进一步的 减小驱动轮和从动轮之间的间距， 提高搬运车行走的稳定性， 使得搬运车的结构更加紧凑； 而驱动机构所处的位置， 在原来的时候， 也是为操作手柄正常工作所必须预留的， 所以说， 设置在这个位置之后， 在不影响操作手柄正常工作的前提下， 减小了搬运车的长度， 能够使 得搬运车更加平稳。
作为优选， 所述驱动机构包括电机及和所述电机连接的液压泵， 所述电机和所述泵壳固 定连接。
电机和液压泵可以直接连接， 也可以通过联轴器等连接件进行连接。
作为优选， 所述电机及液压泵竖直设置。
电机和液压泵竖直的设置， 能够减小在横向上的体积， 使得整个搬运车的结构紧凑， 相 比于横向设置， 竖直设置在使得搬运车结构更加紧凑的同时， 还便于搬运车的行走， 降低其 对搬运车稳定性的影响， 同时， 也不影响操作手柄的正常工作； 进而保证了整个搬运车结构 的紧凑和行走的稳定性。
作为优选， 所述泵壳包括设置在所述泵壳内的具有正向进口和正向出口的手控单向阀、 设在所述泵壳内并和所述顶盖固定连接的输送油缸， 以及设置在所述泵壳内和所述正向出口 相通的高压油进口、 和所述正向进口连通的储油腔、 和所述储油腔相通的油出口。
手控单向阀和操作手柄连接， 由操作手柄手动控制， 来实现顶盖及输送油缸的无动力下 降； 上升则通过驱动机构驱动储油腔内的液压油， 将输送油缸顶起来实现， 而手控单向阀是 设置在泵壳内部的， 进一步的减小了整个搬运车的体积。
作为优选， 所述泵壳设有向远离所述货叉方向延伸的底板； 所述底板边缘设有向上延伸 的围挡板， 所述电机固定在所述底板上， 所述围挡板至少将所述电机部分包围。 说 明 书
底板设置在泵壳上， 便于电机的固定连接， 使得电机和泵壳固定连成一体， 一起在叉车 工作的时候进行转动， 同时， 围挡板可以将电机部分或全部的包围起来， 起到防护的作用， 也能够起到加强结构强度的作用； 在保证结构紧凑的同时， 保证了电机安装的牢固程度， 保 证了搬运车在工作时候的平稳性。
作为优选， 所述手柄安装部包括一对铰接安装板； 所述铰接安装板、 泵壳、 底板及围挡 板一体成型或分体组装。
一体成型的结构， 相对于各自制造再组装成一体， 其可以用于大批量的制造， 制造出来 的产品合格率高， 废品率低， 更重要的是， 在本申请中， 采用一体成型的方式制作铰接安装 板、 泵壳、 底板及围挡板， 形成一个整体件； 省去了应该存在的各个部件间的安装、 拆卸空 间， 进一步的减小了其体积， 使得整体件的结构极其紧凑。
作为优选， 所述液压泵位于所述电机的下方。
液压泵位于电机的下方， 使得电机位于液压泵的上方， 而液压泵是和泵壳相连接的， 这 样的设置； 和正常的为了便于维修而采用的将液压泵设置在电机上方相比， 是有其特定意义 的， 这是因为， 本技术方案的目的， 是为了尽可能的使得搬运车的结构紧凑、 稳定性能好， 而采用本技术方案的方式设置， 让液压泵可以远离输送油缸， 因为输送油缸是和顶盖连接 的， 如果液压泵位于电机的上方， 其在和泵壳连接的时候， 和泵壳连接的液压管路就会从上 向下连接， 这样一个是使得管路的走管形式复杂化， 增加了搬运车结构的复杂化， 也增加了 搬运车的体积， 另外一个就是会影响操作手柄的正常工作， 对手柄造成干涉， 影响整个搬运 车的结构稳定； 所以， 液压泵在电机下方的设置方式， 使得其和泵壳的连接更加紧凑， 还不 影响操作手柄的正常工作。
作为优选， 所述操作手柄设有和所述手柄安装部铰接的一对连接件， 所述一对连接件之 间设有驱动机构通过口。
作为优选， 当所述驱动机构位于所述驱动机构通过口内时， 所述一对连接件位于所述驱 动机构两侧。
连接件位于驱动机构的两侧， 保证了操作手柄和手柄安装部的连接强度， 并有效的利用 了连接件之间的空间， 使得在操作手柄工作的时候， 驱动机构能够从驱动机构通过口穿过， 同时， 也将原来操作手柄下方的空间进行了有效的利用。
作为优选， 当所述操作手柄处于竖直位置时， 所述驱动机构至少有部分位于所述操作手 柄下方。
这样的设置方式， 使得驱动机构尽可能的靠近泵壳， 使得两者之间的距离尽可能的小， 说 明 书
以使得搬运车的结构紧凑； 同时， 也尽可能的避免对操作手柄转的影响。
一种搬运车， 包括车架、 和所述车架连接的货叉、 安装在所述货叉上的从动轮、 蓄电池 装置、 操作手柄、 液压泵站系统、 和所述车架固定连接的顶盖； 以及用于驱动所述搬运车行 走的驱动轮装置和电器控制器； 所述液压泵站系统包括驱动机构及具有泵壳的泵体， 所述泵 体上端和所述顶盖固定连接， 下端和所述驱动轮装置连接， 所述泵壳上设有和所述操作手柄 连接的手柄安装部， 所述泵体可在所述驱动机构的驱动下顶升所述顶盖， 并且所述泵体可在 所述操作手柄控制下无动力下降所述顶盖； 所述驱动机构位于所述手柄安装部的与所述泵体 相对且远离所述货叉的一侧， 且所述电器控制器固定在所述泵体上。
本发明有益效果在于：
本发明结构简单并紧凑、 价格低廉， 操作容易， 体积小、 占用空间小， 工作平稳。 附图说明
下面结合附图对本发明做进一步的说明：
图 1为本发明实施例一的结构示意图；
图 2为图 1的立体示意图；
图 3为图 1中液压泵站系统的结构示意图；
图 4为图 1中输送油缸安装在泵壳内的示意图；
图 5为图 4泵壳中手控单向阀的结构示意图；
图 6为本发明实施例二的结构示意图。
具体实施方式
以下所述仅为本发明的较佳实施例， 并非对本发明的范围进行限定。
实施例 1， 见附图 1、 2、 3、 4、 5， 一种搬运车， 包括车架 1、 和车架 1连接的货叉 2， 货叉 2为两个， 对称的设置， 在货叉 2上安装有从动轮 3， 蓄电池装置 4， 操作手柄 5， 蓄 电池装置 4包括蓄电池和蓄电池箱， 蓄电池箱和车架固定连接； 在车架上还固定有顶盖 7; 以及用于驱动电动搬运车行走的驱动轮装置 8， 上述结构装置都是公知技术， 在此不再详 述； 还包括液压泵站系统 6， 和现有的液压泵站系统不同； 在本实施方式中， 液压泵站系统 6包括驱动机构 601及具有泵壳 60201的泵体 602， 驱动机构 601包括电机 60101及和电机 60101连接的液压泵 60102， 电机 60104和泵壳 60201 固定连接； 液压泵可以采用齿轮泵、 叶片泵， 液压泵可以直接和电机连接， 也可以采用联轴器等连接件连接， 在工作的时候， 由 电机带动液压泵进行工作， 泵体 602上端和顶盖 7固定连接， 泵体的下端和驱动轮装置 8连 接， 泵壳 60201上设有和操作手柄 5连接的手柄安装部 9， 泵体 602在驱动机构 601的驱动 说 明 书
下实现顶盖 7的上升， 并且泵体 602在操作手柄 5控制下实现顶盖 7的无动力下降； 驱动机 构 601位于手柄安装部 9另一侧和泵体 602相对的远离货叉 2的一侧； 驱动机构采用这样的 安装位置， 位于在泵体的外侧； 也就是和泵体相对的位于手柄安装部的另一侧， 能够远离货 叉； 节省顶盖下方的空间， 缩短搬运车驱动轮和从动轮之间的距离； 而为了使得搬运车的整 体结构更加紧凑， 我们将电机 60101及液压泵 60102竖直设置； 而且， 液压泵 60102位于电 机的下方， 其中， 较佳的， 驱动机构 601的纵向中心剖面 （纵向为沿着货叉 2长度延伸的方 向） 和整个搬运车的纵向剖面重合。
在本实施方式中， 泵体 602包括泵壳 60201、 设置在泵壳 60201内的具有正向进口 a和 正向出口 b的手控单向阀 60203及设在泵壳 60201内的输送油缸 60207， 泵壳 60201设有和 正向出口相通的高压油进口 60204、 和正向进口连通的储油腔 60205及和储油腔 60205相通 的油出口 60206， 在泵壳 60201 内部可以设置安全阀 60202， 或者在外部安装安全阀； 安全 阀 60202的数量可以根据实际的需求确定， 以保证整个液压系统的安全， 液压泵 60102的泵 出口和高压油进口 60204连通， 液压泵 60102的泵进口和油出口 60206连通， 液压泵 60102 的泵出口和高压油进口 60204 之间设有使得液压油从液压泵 60102 单向流往高压油进口 60204 的单向阀 （图纸中未画出）， 单向阀可以采用管式单向阀， 也可以采用板式或叠加式 单向阀。 在工作的时候， 电机带动液压泵进行转动， 液压油从泵出口经过高压油进口 60204 进入泵壳 60201中， 使得输送油缸 60207上升， 将顶盖顶升到达预定位置， 当需要下降的时 候， 操作手柄 5进行操作， 使得手控单向阀反向导通， 在顶盖等重量的重力作用下， 液压油 由正向进口 a向正向出口 b流通， 进入储油腔 60205内， 实现顶盖 7的无动力下降， 这样和 现有的搬运车相比， 节省了一个控制升降的电磁换向阀， 降低了成本， 也减少了漏油的现 象。 另外， 泵体 602还可以采用公知的手压泵， 并可以保留手压部分。
为了便于电机的固定， 在泵壳 60201上设有向远离货叉 2方向延伸的底板 60208 ; 底板 60208 边缘设有围挡板 60209， 围挡板向上延伸， 将电机部分或全部包围起来， 围挡板 60209设置在底板 60208的边缘， 向上延伸， 和泵壳一起形成包围型结构， 将电机的一部分 包围起来， 也可以全部包围； 电机 60101固定在底板 60208上， 手柄安装部 9设置在围挡板 60209和泵壳 60201之间， 并且， 手柄安装部同时和围挡板及泵壳连接； 在本实施方式中， 手柄安装部 9包括一对铰接安装板； 更进一步的； 铰接安装板、 泵壳 60201、 底板 60208及 围挡板 60209—体成型或分体组装， 其中， 以一体成型为佳， 此外， 手柄安装部也可以采用 块整板， 用于和操作手柄连接，
为了便于和手柄安装部 9进行连接， 操作手柄 5设有和手柄安装部 9铰接的一对连接件 说 明 书
10， 一对连接件 10之间设有驱动机构通过口 11 ; 连接件 10可以采用板材， 形状根据实际 情况确定， 其和销轴配合将操作手柄和手柄安装部连接起来即可， 实现操作手柄的上下方向 转动； 同时， 驱动机构通过口的形成， 保证操作手柄的正常工作； 当驱动机构 601位于驱动 机构通过口 11内时， 一对连接件 10位于驱动机构 601两侧， 为了尽可能使得结构紧凑， 当 操作手柄 5处于竖直位置时， 驱动机构 601至少有部分位于操作手柄 5下方， 从上向下看上 去， 搬运手柄的投影是和驱动机构的投影有部分重合的， 重合的部分尽可能的靠近泵壳。
为了减小体积， 使得布局更加合理、 紧凑， 在本实施方式中， 手控单向阀 60203包括轴 向阀套 6020301、 和轴向阀套 6020301 固定连接的轴向进液阀芯 6020302、 设在轴向进液阀 芯 6020302 内的推动阀芯 6020303、 固定在轴向进液阀芯 6020302端部的螺盖 6020304、 一 端作用在螺盖 6020304上且另一端作用在推动阀芯 6020303上的阀芯弹簧 6020305、 设在轴 向阀套 6020301 端部的阀杆套 6020306、 插接在轴向阀套 6020301 内且一端伸出阀杆套 6020306的顶杆 6020307、 一端作用在顶杆 6020307且另一端作用在轴向阀套 6020301上的 顶杆弹簧 6020308及位于顶杆 6020307和推动阀芯 6020303之间的推动钢球 6020309。 轴向 进液阀芯 6020302、 轴向阀套都固定在壳体的阀芯孔中， 螺盖 6020304 和阀芯孔之间有间 隙， 便于液压油通过， 而阀杆套 6020306则螺接固定在阀芯孔的端部， 阀芯孔的另一个与阀 杆套 6020306 对应的端部为高压油进口 60204 ; 顶杆 6020307 间隙配合的插接在阀杆套 6020306和轴向阀套 6020301 内， 并能够做轴向滑动， 其推动钢球的动力来源于外部的操作 手柄， 回复力来源于顶杆弹簧； 正向进口 a设置在轴向阀套 6020301端部， 正向出口 b设置 在轴向进液阀芯 6020302上。 推动阀芯 6020303设置在轴向进液阀芯 6020302内， 轴向进液 阀芯 6020302设有和推动阀芯 6020303配合的密封阀口， 轴向进液阀芯 6020302和轴向阀套 6020301通过铆钉或焊接固定成一体。
实施例 2， 见附图 6; —种搬运车， 包括车架 1、 和车架 1连接的货叉 2， 货叉 2为两 个， 对称的设置， 在货叉 2上安装有从动轮 3， 蓄电池装置 4， 操作手柄 5， 蓄电池装置 4 包括蓄电池和蓄电池箱， 蓄电池箱和车架固定连接； 在车架上还固定有顶盖 7; 以及用于驱 动电动搬运车行走的驱动轮装置 8 和电器控制器 12， 上述结构装置都是公知技术， 在此不 再详述； 还包括液压泵站系统 6， 和现有的液压泵站系统不同； 在本实施方式中， 液压泵站 系统 6包括驱动机构 601及具有泵壳 60201的泵体 602， 驱动机构 601包括电机 60101及和 电机 60101连接的液压泵 60102， 电机 60104和泵壳 60201固定连接； 液压泵可以采用齿轮 泵、 叶片泵， 液压泵可以直接和电机连接， 也可以采用联轴器等连接件连接， 在工作的时 候， 由电机带动液压泵进行工作， 泵体 602上端和顶盖 7固定连接， 同时， 泵壳的下端和驱 说 明 书
动轮装置 8连接， 泵壳 60201上设有和操作手柄 5连接的手柄安装部 9， 泵体 602在驱动机 构 601的驱动下实现顶盖 7的上升， 并且泵体 602在操作手柄 5控制下实现顶盖 7的无动力 下降； 驱动机构 601位于手柄安装部 9另一侧和泵体 602相对的远离货叉 2的一侧； 驱动机 构采用这样的安装位置， 位于在泵壳的外侧； 也就是和泵体相对的位于手柄安装部的另一 侧， 能够远离货叉； 节省顶盖下方的空间， 缩短搬运车驱动轮和从动轮之间的距离； 而为了 使得搬运车的整体结构更加紧凑， 同时， 我们将电器控制器 12 固定在泵体 602上， 这样的 方式， 有利于电器控制器 12的安装、 维修以及保养； 较佳的， 电器控制器 12位于泵体 602 的纵向侧面上。

Claims

权 利 要 求 书
1.一种搬运车， 包括车架 （1)、 和所述车架 （1) 连接的货叉 （2)、 安装在 所述货叉 （2) 上的从动轮 （3)、 蓄电池装置 （4)、 操作手柄 （5)、 液压泵站系 统 （6)、 和所述车架 （1) 固定连接的顶盖 （7); 以及用于驱动所述搬运车行走 的驱动轮装置 （8); 其特征在于： 所述液压泵站系统 （6) 包括驱动机构
(601) 及具有泵壳 （60201) 的泵体 （602)， 所述泵体 （602) 上端和所述顶盖 (7) 固定连接， 下端和所述驱动轮装置 （8) 连接， 所述泵壳 （60201) 上设有 和所述操作手柄 （5) 连接的手柄安装部 （9)， 所述泵体 （602) 可在所述驱动 机构 （601) 的驱动下顶升所述顶盖 （7)， 并且所述泵体 （602) 可在所述操作 手柄 （5) 控制下无动力下降所述顶盖 （7); 所述驱动机构 （601) 位于所述手 柄安装部 （9) 的与所述泵体 （602) 相对且远离所述货叉 （2) 的一侧。
2.根据权利要求 1 所述的一种搬运车， 其特征在于： 所述驱动机构 （601) 包括电机 （60101) 及和所述电机 （60101) 连接的液压泵 （60102)， 所述电机
(60101) 和所述泵壳 (60201) 固定连接。
3.根据权利要求 2 所述的一种搬运车， 其特征在于： 所述电机 （60101) 及 液压泵 （60102) 竖直设置。
4.根据权利要求 1或 2或 3所述的一种搬运车， 其特征在于： 当所述操作 手柄处于竖直位置时， 所述驱动机构 （601) 至少有部分位于所述操作手柄
(5) 下方。
5.根据权利要求 2 或 3 所述的一种搬运车， 其特征在于： 所述泵壳 (60201 ) 设有向远离所述货叉 （2) 方向延伸的底板 （60208); 所述底板 (60208) 边缘设有向上延伸的围挡板 （60209)， 所述电机 （60101) 固定在所 述底板 （60208) 上， 所述围挡板 （60209) 至少将所述电机 （60101) 部分包 围。
6.根据权利要求 5 所述的一种搬运车， 其特征在于： 所述手柄安装部 （9) 包括一对铰接安装板； 所述铰接安装板、 泵壳 （60201)、 底板 （60208) 及围挡 板 （60209) —体成型或分体组装。
7.根据权利要求 5 所述的一种搬运车， 其特征在于： 所述液压泵 （60102) 位于所述电机 （60101) 的下方。
8.根据权利要求 1或 2或 3或 4所述的一种搬运车， 其特征在于： 所述操 作手柄 （5) 设有和所述手柄安装部 （9) 铰接的一对连接件 （10)， 所述一对连 权 利 要 求 书
接件 （10) 之间设有驱动机构通过口 （11)。
9.根据权利要求 8 所述的一种搬运车， 其特征在于： 当所述驱动机构
(601) 位于所述驱动机构通过口 （11) 内时， 所述一对连接件 （10) 位于所述 驱动机构 （601) 两侧。
10.—种搬运车， 包括车架 （1)、 和所述车架 （1) 连接的货叉 （2)、 安装 在所述货叉 （2) 上的从动轮 （3)、 蓄电池装置 （4)、 操作手柄 （5)、 液压泵站 系统 （6)、 和所述车架 （1) 固定连接的顶盖 （7); 以及用于驱动所述搬运车行 走的驱动轮装置 （8) 和电器控制器 （12); 其特征在于： 所述液压泵站系统
(6) 包括驱动机构 （601) 及具有泵壳 （60201) 的泵体 （602)， 所述泵体
(602) 上端和所述顶盖 （7) 固定连接， 下端和所述驱动轮装置 （8) 连接， 所 述泵壳 （60201) 上设有和所述操作手柄 （5) 连接的手柄安装部 （9)， 所述泵 体 （602) 可在所述驱动机构 （601) 的驱动下顶升所述顶盖 （7)， 并且所述泵 体 （602) 可在所述操作手柄 （5) 控制下无动力下降所述顶盖 （7); 所述驱动 机构 （601) 位于所述手柄安装部 （9) 的与所述泵体 （602) 相对且远离所述货 叉 （2) 的一侧， 且所述电器控制器 （12) 固定在所述泵体 （602) 上。
PCT/CN2014/078723 2014-05-29 2014-05-29 一种搬运车 WO2015180082A1 (zh)

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