WO2012100572A1 - 大型液压变速浮箱拍门 - Google Patents

大型液压变速浮箱拍门 Download PDF

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Publication number
WO2012100572A1
WO2012100572A1 PCT/CN2011/081469 CN2011081469W WO2012100572A1 WO 2012100572 A1 WO2012100572 A1 WO 2012100572A1 CN 2011081469 W CN2011081469 W CN 2011081469W WO 2012100572 A1 WO2012100572 A1 WO 2012100572A1
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WO
WIPO (PCT)
Prior art keywords
door
seat
sealing
pontoon
fixing plate
Prior art date
Application number
PCT/CN2011/081469
Other languages
English (en)
French (fr)
Inventor
翟松茂
李全民
滕康乐
应建国
刘润根
熊东亮
Original Assignee
宁波巨神制泵实业有限公司
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 宁波巨神制泵实业有限公司 filed Critical 宁波巨神制泵实业有限公司
Priority to US13/822,082 priority Critical patent/US9103452B2/en
Publication of WO2012100572A1 publication Critical patent/WO2012100572A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F16K1/2021—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member with a plurality of valve members
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
    • E02B13/02—Closures for irrigation conduits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20—Movable barrages; Lock or dry-dock gates
    • E02B7/40—Swinging or turning gates
    • E02B7/44—Hinged-leaf gates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/165—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with a plurality of closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement

Definitions

  • the invention relates to an auxiliary equipment for a drainage pumping station, in particular to a large hydraulic variable speed floating box flapping door which is applied to a water pump of a drainage pumping station and is intercepted during shutdown.
  • the irrigation and drainage pumping station is a combination of pumping devices, water inlet and outlet buildings, pump rooms and ancillary facilities for irrigation and drainage.
  • the door is one of the important parts in the irrigation and drainage pumping station. It is an auxiliary device used for the drainage pump to stop the flow when the pump is stopped. Its main function is to block the outflow of the river.
  • the commonly used flaps are hanging balance hammer cast iron doors, pontoon flaps and free-side flapping doors, the most common of which is the pontoon flap.
  • the pontoon door is divided into a circular pontoon door and a square pontoon door.
  • a square pontoon door it is generally made up of a door page (for a large sized door, each door page) Usually composed of upper door and lower door pages, door seat and hinge seat, the lower door page is hinged with the upper door page, the upper door page is hinged on the hinge seat, and the door page and the door seat are sealedly connected.
  • the pump of the pumping station When the pump of the pumping station is stopped, the door is closed.
  • the pump is turned on, the door is opened by the force of the water flow.
  • the sealing structure of the door panel and the door seat of the prior art is usually welded with two upper and lower fixing plates of the same size on the door seat, and a through hole is formed in the fixing plate, and the one end is lifted at the time of assembly.
  • the sealing rubber is placed between the two fixing plates, and then bolted through the through holes of the fixing plate, and the two sides of the door have a plurality of sealing structures. In other words, a plurality of through holes are required. Therefore, the assembly process of such a structure is very troublesome; at the same time, the compression amount of the sealing rubber in this structure is small, and as the size of the door sheet increases, the compression amount of the sealing rubber alone cannot satisfy the door page and Sealing requirements between the door seats.
  • the hinge of the upper door and the hinge is usually provided with a circular hole in the hinge, and the upper door is hinged in the circular hole through the pin.
  • This structure usually limits the hinge point of the upper door to a certain position.
  • One place, not movable, and the entire door page is of a length dimension, and as the size of the door leaf is getting larger, the sealing effect of the door leaf and the door seat near the hinge Fortunately, the sealing effect of the door leaf and the door seat away from the hinge is very poor, which will lead to leakage.
  • the ratio between the upper and lower door pages of the door page is usually the upper door page and the lower door page are small.
  • the lower door page is opened first, when the flow rate is increased.
  • the door page usually cannot meet the flow requirement, and the door page is always needed. This way, the energy consumption is large, which is not conducive to energy saving.
  • the technical problem to be solved by the present invention is to provide a large-sized hydraulic shifting pontoon door which can reduce the damage of the sealing rubber and can reduce the noise of the door slamming.
  • the present invention provides a large hydraulic shifting pontoon door, which comprises a hinge seat, a door seat, an upper door page and a lower door page, wherein the door seat and the hinge seat are fixed on the base of the pump station.
  • the upper door page and the hinge seat are hinged by a pin
  • the lower door page is hinged with the upper door page
  • the upper door page and the lower door page are sealingly and cooperatively engaged with the door seat through the sealing structure
  • the upper door page passes at least
  • a hydraulic mechanism is coupled to the lower door, one end of the hydraulic mechanism hinged to the upper door and the other end hinged to the lower door.
  • the hydraulic mechanism includes an upper bracket, a lower bracket, a cylinder, a piston and a piston rod; wherein, one end of the upper bracket is connected to the upper door sheet, and the other end is hinged to the cylinder barrel, and the piston is slidingly fitted to the cylinder tube Inside, one end of the piston rod is connected to the piston, the other end is hinged to one end of the lower bracket, and the other end of the lower bracket is connected to the lower door sheet.
  • One end of the cylinder tube adjacent to the lower bracket is connected with a sealing plate, the sealing plate is slidably engaged with the piston rod, and the sealing plate has a plurality of threaded holes, and the threaded holes are screwed with a screw plug.
  • the hydraulic mechanism is provided in two pairs, which are symmetrically mounted on the left and right sides of the flap door, and the two hydraulic mechanisms are connected by a flat pressure tube.
  • the flat pressure pipes are two, and one end of each flat pressure pipe is respectively connected with the cylinders of the two hydraulic mechanisms, and the other ends are connected and communicated through the joints.
  • the sealing structure between the upper door and the lower door and the door comprises an upper fixing plate, a lower fixing plate and a sealing rubber having a lift at one end, wherein the upper fixing plate is vertically welded to the door seat,
  • the lower fixing plate is obliquely welded to the door seat to form an inner cavity having a free end opening smaller than the fixed end opening, and the unwarped end of the sealing rubber is embedded in the inner cavity.
  • the sealing structure between the upper door and the lower door comprises a side fixing plate, a bottom fixing plate and a sealing rubber having a lifting at one end, the bottom fixing plate is vertically welded on the lower door page, and the side fixing plate is obliquely welded.
  • a cavity having a free end opening smaller than the fixed end opening is formed, and the unwarped end of the sealing rubber is embedded in the cavity.
  • the hinge of the upper door leaf and the hinge has a waist hole, and the pin shaft is slidably fitted in the waist hole.
  • the size of the upper door page is smaller than the size of the lower door page.
  • the present invention has the following advantages compared with the prior art: 1) Since the hydraulic mechanism is installed on the upper and lower door pages, when the door is closed and the door is closed, the impact force of the door page and the door seat is buffered by the hydraulic mechanism, thus reducing the use of the medium. The sealing of the sealing door and the sealing rubber of the door seat reduces the frequent replacement of the sealing rubber and reduces the cost accordingly; at the same time, the noise generated when the heavy door hits the door seat is also reduced, thereby ensuring the pumping station. Normal working environment;
  • the flow rate of the water flowing through the cylinder is controlled by the number of the screw holes on the sealing plate, so as to control the movement speed of the piston and the piston rod, thereby controlling the closing speed of the door.
  • a flat pressure pipe is added between the two hydraulic mechanisms to communicate, so that the flow of the water flow is balanced between the hydraulic mechanisms on both sides, in other words, the movement speeds of the pistons on the left and right sides and the piston rod are consistent. , to make the door closing state more stable;
  • the use of two flat pressure pipe and joint structure makes installation and maintenance more convenient.
  • the pin of the hinge has a little room for movement, that is, the hinge point is not limited to a certain point.
  • the hinge point is not limited to a certain point.
  • FIG. 1 is a front view showing the structure of a large hydraulic variable speed pontoon door of the present invention
  • FIG. 2 is a side view showing the structure of a large hydraulic shifting pontoon door of the present invention
  • Figure 3 is a schematic enlarged view of the portion A of Figure 2;
  • FIG. 4 is a schematic view showing a sealing structure of a door leaf and a door seat in the prior art
  • Figure 5 is a schematic enlarged view of the portion B of Figure 2;
  • Figure 6 is a schematic view showing the sealing structure of the upper door page and the lower door page in the prior art
  • Figure 7 is an enlarged schematic view of a portion C of Figure 2;
  • Figure 8 is a partially enlarged structural view showing the hinge portion of the upper door page and the hinge in the large hydraulic shifting pontoon door of the present invention.
  • the invention 1. hinge seat; 2. pin shaft; 3. door seat; 4. flat pressure tube; 5, upper door page; 6. joint; 7. hydraulic mechanism; 71, upper bracket; 72, lower bracket; 74; piston rod; 75, piston; 76, sealing plate; 77, screw plug; 78, threaded hole; 8, lower door page; 9, upper fixing plate; 10, sealing rubber; 11, lower fixing plate 12, bottom fixed plate; 13, side fixed plate; 14, waist hole.
  • FIG. 1, FIG. 2 and FIG. 3 The structure diagram of the large hydraulic shifting pontoon door of the present invention shown in FIG. 1, FIG. 2 and FIG. 3, which comprises a hinge seat 1, a door base 3, an upper door page 5 and a lower door page 8, said door seat 3 and the hinge 1 are fixed on the base of the pumping station, the upper door 5 and the hinge 1 are hinged by the pin 2, and the lower door 8 is hinged with the upper door 5, the upper door 5 and The lower door leaf 8 is sealably and intimately engaged with the door seat 3 by a sealing structure.
  • the upper door 5 is connected to the lower door 8 by at least one hydraulic mechanism 7, one end of which is hinged to the upper door 5 and the other end hinged to the lower door 8.
  • the hydraulic mechanism 7 includes an upper bracket 71, a lower bracket 72, a cylinder 73, a piston 75 and a piston rod 74.
  • the upper bracket 71 has one end connected to the upper door 5 and the other end hinged to the cylinder 73.
  • the piston 75 is slidably fitted in the cylinder barrel 73.
  • One end of the piston rod 74 is connected to the piston 75, the other end is hinged to one end of the lower bracket 72, and the other end of the lower bracket 72 is connected to the lower door sheet 8.
  • One end of the cylinder tube 73 adjacent to the lower bracket 72 is connected with a sealing plate 76.
  • the sealing plate 76 is slidably engaged with the piston rod 74, and the sealing plate 76 has a plurality of threaded holes 78, and the threaded holes 78 are provided.
  • a screw plug 77 can be screwed.
  • the hydraulic mechanism 7 is provided in two pairs, which are symmetrically mounted on the left and right sides of the door, and the two hydraulic mechanisms 7 are connected by the flat tube 4.
  • the flat pressure tubes 4 are two, and one end of each of the flat pressure tubes 4 is respectively connected to the cylinder tubes 73 of the two hydraulic mechanisms 7, and the other ends are connected and communicated through the joints 6.
  • the size of the upper door sheet 5 is smaller than the size of the lower door page 8.
  • the upper fixing plate 9' and the lower fixing plate 1 are the same in size and shape, and are vertically welded to the door seat 3', and are fixed on the door. Both the plate 9' and the lower fixing plate 1 are provided with through holes, and after the sealing rubber 10' is fitted between the upper fixing plate 9' and the lower fixing plate 1, The bolt 15' and the nut 16' secure the sealing rubber 10'.
  • the sealing structure between the upper door sheet 5 and the lower door sheet 8 and the door seat 3 includes an upper fixing plate 9 and a lower fixing plate 11 .
  • the inner cavity, the unlifted end of the sealing rubber 10 is embedded in the inner cavity.
  • the sealing structure between the upper door sheet 5 and the lower door sheet 8 of the present invention shown in FIG. 7 includes a side fixing plate 13 , a bottom fixing plate 12 and one end having a sealing structure.
  • the lifted sealing rubber 10, the bottom fixing plate 12 is vertically welded to the lower door sheet 8, and the side fixing plate 13 is obliquely welded to one side of the bottom fixing plate 12, forming a cavity having a free end opening smaller than the fixed end opening.
  • the unlifted end of the sealing rubber 10 is embedded in the cavity.
  • the hinge portion of the upper door leaf 5 and the hinge seat 1 has a waist hole 14 , and the pin shaft 2 slides. Fitted in the waist hole 14.
  • the assembly process of the large hydraulic variable speed pontoon door of the invention is as follows: Firstly, the door page, the door seat, the hinge seat and the like are assembled in the factory by the tooling, and then the short steel bars are spot welded between the door page and the door seat. Then, after pulling these components to the site for installation, these short steel bars are cut off, thus ensuring the accuracy of the field installation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Barrages (AREA)
  • Lift Valve (AREA)
  • Check Valves (AREA)

Description

大型液压变速浮箱拍门
技术领域
本发明涉及排灌泵站的附属设备， 具体讲是一种应用于排灌泵站的水泵在停机时进 行截流的大型液压变速浮箱拍门。
背景技术
排灌泵站是为灌溉、 排水而设置的抽水装置、 进出水建筑物、 泵房及附属设施的综 合体。 拍门是排灌泵站中的重要零部件之一， 它是用于排灌泵站在水泵停机时进行截流 的附属设备， 其主要作用是阻挡外河水倒流。 目前， 常用的拍门有挂平衡锤铸铁拍门、 浮箱拍门和自由侧翻拍门， 其中最常用的是浮箱拍门。 通常浮箱拍门分为圆形浮箱拍门 和方形浮箱拍门， 对于方形浮箱拍门来讲， 它一般由门页 （对于尺寸较大的大型拍门来 说， 每个门页通常由上门页和下门页组成）、 门座和铰座等组成， 下门页与上门页铰接， 上门页铰接在铰座上， 门页和门座密封连接。 泵站的水泵停机时拍门是关闭的， 当水泵 开机时， 通过水流的力量使拍门打开。
但是， 对于大型的浮箱拍门 （通常尺寸在 3米 X 3米以上的拍门） 来讲， 这种结构 存在以下的缺点：
1 ) 由于对于大型的浮箱拍门而言， 随着尺寸的逐渐增大， 门页的重量也逐渐增大， 因此， 当拍门关闭即门页合拢时， 门页与门座的撞击力也逐渐增大， 这样， 对用于密封 门页和门座的封水橡皮的损坏也很严重， 导致封水橡皮的更换较频繁， 相应增加成本； 同时， 重重的门页撞击门座时也产生了很大的噪音， 从而影响了泵站的工作环境。
2) 现有技术的门页与门座的密封结构通常是在门座上焊接有上下两片大小尺寸一 样的固定板， 在固定板上打有通孔， 装配时先将一端有翘起的封水橡皮放入两片固定板 之间， 再用螺栓螺母穿过固定板上的通孔后拧紧， 而且门座的两边各有多个密封结构， 换句话说， 需要打很多个通孔， 因此， 这种结构的装配过程非常麻烦； 同时， 这种结构 中封水橡皮的压缩量小， 随着门页尺寸的增大， 仅靠这种封水橡皮的压缩量已经满足不 了门页与门座之间的密封要求。
3 ) 现有技术中上门页与铰座的铰接处通常在铰座上设有圆孔， 上门页通过销轴铰 接在圆孔中， 这种结构通常会将上门页的铰接点限位在某一处， 不能活动， 而整个门页 是有长度尺寸的， 而且随着门页的尺寸越来越大， 靠近铰接处的门页与门座的密封效果 还好， 但是远离铰接处的门页与门座的密封效果就很差， 这将导致渗漏现象的产生。
4)现有技术中门页的上下门页之间的比例通常为上门页大、 下门页小， 这样的话， 当河水流量不太大的情况下， 先开启下门页， 当流量增大时再开启上门页； 但是， 在下 门页小的情况下， 通常总是下门页根本满足不了流量的需求， 总是需要再开启上门页； 这样， 耗能大， 不利于节能。
发明内容
本发明所要解决的技术问题是， 提供一种能减少封水橡皮的损坏、 并能减少门页撞 击噪音的大型液压变速浮箱拍门。
为解决上述技术问题， 本发明提供的大型液压变速浮箱拍门， 包括铰座、 门座、 上 门页和下门页， 所述的门座和铰座均固定在泵站基座上， 所述的上门页与铰座通过销轴 铰接， 所述的下门页与上门页铰接， 所述的上门页和下门页通过密封结构与门座可密封 接触配合， 所述的上门页通过至少一付液压机构与下门页连接， 所述的液压机构的一端 与上门页铰接， 另一端与下门页铰接。
所述的液压机构包括上支架、 下支架、 缸筒、 活塞和活塞杆； 其中， 所述的上支架 的一端与上门页连接， 另一端与缸筒铰接， 所述的活塞滑动配合在缸筒内， 活塞杆的一 端与活塞连接， 另一端与下支架的一端铰接， 下支架的另一端与下门页连接。
所述的缸筒内靠近下支架的一端连接有封板， 所述的封板与活塞杆滑动配合， 且封 板上具有多个螺纹孔， 所述的螺纹孔可螺纹连接有螺塞。
所述的液压机构为两付， 分别对称安装在拍门的左右两侧， 并且两付液压机构之间 通过平压管连通。
所述的平压管为两根， 每根平压管的一端分别与两付液压机构的缸筒连通， 另一端 通过接头连接并相通。
所述的上门页和下门页与门座之间的密封结构包括上固定板、下固定板和一端具有 翘起的封水橡皮， 所述的上固定板垂直焊接在门座上， 所述的下固定板倾斜焊接在门座 上， 形成自由端开口比固定端开口小的内腔， 所述的封水橡皮的未翘起端嵌在内腔内。
所述的上门页与下门页之间的密封结构包括侧固定板、底固定板和一端具有翘起的 封水橡皮，所述的底固定板垂直焊接在下门页上，侧固定板倾斜焊接在底固定板的一侧， 形成自由端开口比固定端开口小的空腔， 所述的封水橡皮的未翘起端嵌在空腔内。
所述的上门页与铰座的铰接处具有腰形孔， 所述的销轴滑动配合在腰形孔内。 所述的上门页的尺寸小于下门页的尺寸。
采用以上结构后， 本发明与现有技术相比， 具有以下的优点： 1 ) 由于在上下门页上安装了液压机构， 通过水这种介质， 当拍门关闭即门页合拢 时， 门页与门座的撞击力会通过液压机构进行缓冲， 这样， 减少了用于密封门页和门座 的封水橡皮的损坏， 从而减少对封水橡皮的频繁更换， 相应降低成本； 同时， 也减轻了 重重的门页撞击门座时产生的噪音， 从而保证了泵站的正常工作环境；
2) 另外， 利用螺塞在封板上螺纹孔的配合数量， 来控制水流通过缸筒的流量， 从 而控制活塞与活塞杆的运动速度， 进而控制门页的关门速度。
3 ) 在两个液压机构之间增加了平压管来连通， 使两侧的液压机构之间保持平衡的 水流的流量， 换句话说， 使左右两侧的活塞与活塞杆的运动速度保持一致， 使门页的关 门状态更加平稳； 另外， 采用两根平压管和接头的结构， 使安装和维修更加方便。
4) 直接将密封结构中的上下固定板焊接在门座上， 取消了现有技术中在上下固定 板上打通孔的工序， 然后将封水橡皮直接嵌入上下固定板之间， 因此， 装配过程非常简 单方便快捷； 又由于下固定板的倾斜焊接， 使上下固定板的自由端形成的开口小于固定 端的开口， 所以， 封水橡皮很牢固地嵌在上下固定板之间； 另外， 加大了封水橡皮的尺 寸后， 使封水橡皮的翘起部分面积增大， 从而加大了封水橡皮的压缩量， 更加适合大尺 寸的门页与门座的密封要求； 同样道理， 上门页和下门页之间的密封结构两样具有上述 的作用。
5 ) 将上门页上与铰座的铰接处的圆孔改成腰形孔后， 使铰接处的销轴稍稍有活动 的余地， 也就是说， 该铰接点并不只是限位在某一点上， 这样， 随着门页尺寸的增大， 即使远离铰接点处的密封结构也与靠近铰接点处的密封结构保持平行， 因此， 上下密封 结构的密封效果均较好， 并不会出现渗漏现象。
6) 将门页的上下门页之间的比例改为上门页小、 下门页大， 这样的话， 当河水流 量不太大的情况下， 只开启下门页， 基本上能保证河水流量的需求， 并不需要总是开启 上门页； 这样， 耗能小， 更加有利于节能。
附图说明
图 1是本发明大型液压变速浮箱拍门的主视结构示意图；
图 2是本发明大型液压变速浮箱拍门的侧视结构示意图；
图 3是图 2中 A部的放大结构示意图；
图 4是现有技术中门页与门座的密封结构示意图；
图 5是图 2中 B部的放大结构示意图；
图 6现有技术中上门页与下门页的密封结构示意图；
图 7是图 2中 C部的放大结构示意图； 图 8是本发明大型液压变速浮箱拍门中上门页与铰座的铰接处的局部放大结构示意 图。
其中：
现有技术： 3 '、 门座； 5 '、 上门页； 8'、 下门页； 9'、 上固定板； 10'、 封水橡皮； 11 '、 下固定板； 15 '、 螺栓； 16'、 螺母； 17'、 封水垫 I ； 18'、 封水垫 II； 19'、 封水 板；
本发明： 1、 铰座； 2、 销轴； 3、 门座； 4、 平压管； 5、 上门页； 6、 接头； 7、 液 压机构； 71、 上支架； 72、 下支架； 73、 缸筒； 74、 活塞杆； 75、 活塞； 76、 封板； 77、 螺塞； 78、 螺纹孔； 8、 下门页； 9、 上固定板； 10、 封水橡皮； 11、 下固定板； 12、 底 固定板； 13、 侧固定板； 14、 腰形孔。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步详细地说明。
由图 1、 图 2和图 3所示的本发明大型液压变速浮箱拍门的结构示意图可知， 它包 括铰座 1、 门座 3、 上门页 5和下门页 8， 所述的门座 3和铰座 1均固定在泵站基座上， 所述的上门页 5与铰座 1通过销轴 2铰接， 所述的下门页 8与上门页 5铰接， 所述的上 门页 5和下门页 8通过密封结构与门座 3可密封接触配合。所述的上门页 5通过至少一 付液压机构 7与下门页 8连接， 所述的液压机构 7的一端与上门页 5铰接， 另一端与下 门页 8铰接。
所述的液压机构 7包括上支架 71、 下支架 72、 缸筒 73、 活塞 75和活塞杆 74; 其 中， 所述的上支架 71的一端与上门页 5连接， 另一端与缸筒 73铰接， 所述的活塞 75 滑动配合在缸筒 73内， 活塞杆 74的一端与活塞 75连接， 另一端与下支架 72的一端铰 接， 下支架 72的另一端与下门页 8连接。
所述的缸筒 73内靠近下支架 72的一端连接有封板 76，所述的封板 76与活塞杆 74 滑动配合， 且封板 76上具有多个螺纹孔 78， 所述的螺纹孔 78可螺纹连接有螺塞 77。
在本实施例中， 所述的液压机构 7为两付， 分别对称安装在拍门的左右两侧， 并且 两付液压机构 7之间通过平压管 4连通。 所述的平压管 4为两根， 每根平压管 4的一端 分别与两付液压机构 7的缸筒 73连通， 另一端通过接头 6连接并相通。
所述的上门页 5的尺寸小于下门页 8的尺寸。
由图 4所示的现有技术中门页与门座的密封结构示意图可知， 上固定板 9' 和下固 定板 1 是大小形状相同的， 均垂直焊接在门座 3 ' 上， 而且上固定板 9' 和下固定板 1 上均打有通孔， 在把封水橡皮 10' 嵌入上固定板 9' 和下固定板 1 之间后， 再用 螺栓 15 ' 和螺母 16' 将封水橡皮 10' 固定住。
由图 5所示的本发明中门页与门座的密封结构示意图可知，所述的上门页 5和下门 页 8与门座 3之间的密封结构包括上固定板 9、下固定板 11和一端具有翘起的封水橡皮 10， 所述的上固定板 9垂直焊接在门座 3上， 所述的下固定板 11倾斜焊接在门座 3上， 形成自由端开口比固定端开口小的内腔， 所述的封水橡皮 10的未翘起端嵌在内腔内。 这样的结构对于安装来说非常方便。
由图 6所示的现有技术中上门页与下门页的密封结构示意图可知， 它包括封水垫 I 17'、 封水垫 II 18' 和封水板 19'， 将封水垫 1 17' 和封水垫 II 18' 由内向外依次叠加在 上门页 5 ' 上， 再用封水板 19' 压住， 最后用螺栓 15 ' 将封水垫 1 17'、 封水垫 11 18' 和封水板 19' 固定在上门页 5 ' 上， 因此， 也需要在封水板 19' 和上门页 5 ' 上打通孔 或螺纹孔。
由图 7所示的本发明中上门页与下门页的密封结构示意图可知，所述的上门页 5与 下门页 8之间的密封结构包括侧固定板 13、底固定板 12和一端具有翘起的封水橡皮 10， 所述的底固定板 12垂直焊接在下门页 8上， 侧固定板 13倾斜焊接在底固定板 12的一 侧， 形成自由端开口比固定端开口小的空腔， 所述的封水橡皮 10的未翘起端嵌在空腔 内。
由图 8所示的本发明中上门页与铰座的铰接处的局部放大结构示意图可知，所述的 上门页 5与铰座 1的铰接处具有腰形孔 14， 所述的销轴 2滑动配合在腰形孔 14内。
本发明大型液压变速浮箱拍门的装配工艺如下： 先利用工装把门页、 门座、 铰座等 零部件在厂内整体组装后， 再把门页与门座之间用多根短钢筋点焊， 然后把这些组件拉 到现场进行安装后， 将这些短钢筋割除， 这样就保证了现场安装的精度。

Claims

权 利 要 求 书
1、 一种大型液压变速浮箱拍门， 包括铰座 （1)、 门座 （3)、 上门页 （5) 和下门页 (8)， 所述的门座 （3) 和铰座 （1) 均固定在泵站基座上， 所述的上门页 （5) 与铰座 (1) 通过销轴 （2) 铰接， 所述的下门页 （8) 与上门页 （5) 铰接， 所述的上门页 （5) 和下门页 （8)通过密封结构与门座 （3)可密封接触配合， 其特征在于： 所述的上门页 (5) 通过至少一付液压机构 （7) 与下门页 （8) 连接， 所述的液压机构 （7) 的一端与 上门页 （5) 铰接， 另一端与下门页 （8) 铰接。
2、 根据权利要求 1所述的大型液压变速浮箱拍门， 其特征在于： 所述的液压机构 (7) 包括上支架 （71)、 下支架 （72)、 缸筒 （73)、 活塞 （75) 和活塞杆 （74); 其中， 所述的上支架 （71) 的一端与上门页 （5) 连接， 另一端与缸筒 （73) 铰接， 所述的活 塞 （75) 滑动配合在缸筒 （73) 内， 活塞杆 （74) 的一端与活塞 （75) 连接， 另一端与 下支架 （72) 的一端铰接， 下支架 （72) 的另一端与下门页 （8) 连接。
3、 根据权利要求 2所述的大型液压变速浮箱拍门， 其特征在于： 所述的缸筒（73) 内靠近下支架 （72) 的一端连接有封板 （76)， 所述的封板 （76) 与活塞杆 （74) 滑动 配合， 且封板 （76) 上具有多个螺纹孔 （78)， 所述的螺纹孔 （78) 可螺纹连接有螺塞
(77)。
4、 根据权利要求 2所述的大型液压变速浮箱拍门， 其特征在于： 所述的液压机构 (7) 为两付， 分别对称安装在拍门的左右两侧， 并且两付液压机构 （7)之间通过平压 管 （4) 连通。
5、根据权利要求 4所述的大型液压变速浮箱拍门， 其特征在于： 所述的平压管（4) 为两根， 每根平压管 （4) 的一端分别与两付液压机构 （7) 的缸筒 （73) 连通， 另一端 通过接头 （6) 连接并相通。
6、根据权利要求 1所述的大型液压变速浮箱拍门， 其特征在于： 所述的上门页（5) 和下门页 （8) 与门座 （3) 之间的密封结构包括上固定板 （9)、 下固定板 （11) 和一端 具有翘起的封水橡皮 （10)， 所述的上固定板 （9) 垂直焊接在门座 （3) 上， 所述的下 固定板 （11) 倾斜焊接在门座 （3) 上， 形成自由端开口比固定端开口小的内腔， 所述 的封水橡皮 （10) 的未翘起端嵌在内腔内。
7、根据权利要求 6所述的大型液压变速浮箱拍门， 其特征在于： 所述的上门页（5) 与下门页 （8)之间的密封结构包括侧固定板 （13)、 底固定板 （12)和一端具有翘起的 封水橡皮 （10)， 所述的底固定板 （12) 垂直焊接在下门页 （8) 上， 侧固定板 （13) 倾 斜焊接在底固定板（12) 的一侧， 形成自由端开口比固定端开口小的空腔， 所述的封水 橡皮 （10) 的未翘起端嵌在空腔内。
8、根据权利要求 1所述的大型液压变速浮箱拍门， 其特征在于： 所述的上门页（5 ) 与铰座 （1 ) 的铰接处具有腰形孔 （14)， 所述的销轴 （2) 滑动配合在腰形孔 （14) 内。
9、根据权利要求 1所述的大型液压变速浮箱拍门， 其特征在于： 所述的上门页（5 ) 的尺寸小于下门页 （8) 的尺寸。
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