WO2020125089A1 - 一种地下水平驱动布置式超深牵引系统及使用方法 - Google Patents

一种地下水平驱动布置式超深牵引系统及使用方法 Download PDF

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Publication number
WO2020125089A1
WO2020125089A1 PCT/CN2019/105581 CN2019105581W WO2020125089A1 WO 2020125089 A1 WO2020125089 A1 WO 2020125089A1 CN 2019105581 W CN2019105581 W CN 2019105581W WO 2020125089 A1 WO2020125089 A1 WO 2020125089A1
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WIPO (PCT)
Prior art keywords
rope
group
guide wheel
drum
rope guide
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Ceased
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PCT/CN2019/105581
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English (en)
French (fr)
Inventor
曹国华
朱真才
周公博
汤裕
彭玉兴
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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Application filed by China University of Mining and Technology CUMT, China University of Mining and Technology Beijing CUMTB filed Critical China University of Mining and Technology CUMT
Priority to AU2019410974A priority Critical patent/AU2019410974B2/en
Priority to RU2020129886A priority patent/RU2751588C1/ru
Priority to CA3092895A priority patent/CA3092895C/en
Publication of WO2020125089A1 publication Critical patent/WO2020125089A1/zh
Priority to ZA2021/02800A priority patent/ZA202102800B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/08—Driving gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/02—Installing or exchanging ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control

Definitions

  • the invention relates to an underground horizontal drive layout type ultra-deep traction system and a use method, which are suitable for an ultra-deep vertical shaft multi-rope traction system, especially suitable for a large-load lifting system.
  • the mine hoisting system is a core part, and the quality of the traction system directly determines the level of mining efficiency.
  • the general lifting system uses the skywheel as the driving device, but this will make the driving device not only subject to natural wear, but also bear the heavy load from the lifting object, which will undoubtedly reduce the life of the system and may lead to accidents. . Therefore, it is very important to improve the structural arrangement of the traction system by specific means.
  • the present invention provides an underground horizontal drive arrangement type ultra-deep traction system and method of use.
  • the traction system can greatly increase the carrying capacity of the system and the surrounding angle of the drive wire rope on the drum, so that the drive
  • the increased friction between the wire rope and the wheel can greatly reduce the possibility of the drive wire rope slipping and reduce the speed of the drive wire rope wear.
  • the structure is simple and the reliability is high.
  • the technical solutions adopted by the present invention to solve its technical problems are: including a sky wheel group, a multi-rope guide wheel group, a single rope guide wheel group, a driving steel wire rope, a following steel wire rope, a driving roller group, a container and a tension balancing system.
  • the multi-rope guide wheel set consists of a left multi-rope guide wheel and a right multi-rope guide wheel.
  • the left multi-rope guide wheel and the right multi-rope guide wheel are arranged at the bottom of the shaft of the shaft, and both The central axis is horizontally and symmetrically arranged; the number of the single rope guide wheel group and the driving wire rope are M and the number of the driving drum group is N, M is 2-10, N is i+j, the single rope guide wheel group and The driving roller groups are arranged horizontally and symmetrically on the two sides below the rope guide wheel group; each driving roller group is composed of a corresponding driving roller and a rewinding roller, and each single rope guide wheel group is composed of Corresponding to the two guide wheels; the container is composed of a left container and a right container; the follower wire rope is one; the tension balance adjustment system includes a pump station, hydraulic cylinder and reel, single Each guide wheel of the rope guide wheel group is equipped with a hydraulic cylinder.
  • each reel is wound around Two drive wire ropes; the bottom of the container on the right is connected to all drive wire ropes; each drive wire rope is wound from its corresponding reel and passes through the left multi-rope guide wheel, the single rope guide wheel corresponding to the left end of the drive wire rope horizontally, and the shaft shaft.
  • an underground horizontal drive layout type ultra-deep traction system and its use method of the present invention have the following advantages:
  • the system places the driving roller device in the underground horizontal arrangement, and the container is lifted by the rotation of the driving roller, which has higher reliability than the driving device installed on the sky wheel and reduces the possibility of accidents;
  • the driving device of the system is concentrated, which is convenient for maintenance; and the appropriate number of hydraulic driving devices can be selected according to the actual working conditions, which has a large load and a wide range of applicability;
  • the system is a combination of multi-rope guidance and single-rope guidance, which can effectively balance the tension of the driving steel rope. Compared with the traditional lifting system, it can give full play to the performance of the driving steel rope and extend its service life.
  • the characteristics of the multi-rope and multi-drive device greatly increase the carrying capacity of the system.
  • the arrangement of multiple sets of drive rollers improves the surrounding angle of the drive wire rope on the drum, which increases the friction between the drive wire rope and the wheel. To a certain extent, the possibility of the drive wire rope slipping is reduced, and the speed of the drive wire rope wear is reduced.
  • FIG. 1 is a front view of an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the winding method of the first driving wire rope in the embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a winding manner of a second driving steel rope in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a winding manner of a third driving wire rope in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a winding manner of a fourth driving steel rope in an embodiment of the present invention.
  • Fig. 6 is a plan view of the arrangement of the driving wire rope in the embodiment of the present invention.
  • FIG. 7 is a schematic structural view of a portion of the underground layout on the left side in an embodiment of the present invention.
  • FIG. 8 is a detailed schematic diagram of the rope winding of the left driving drum group in the embodiment of the present invention.
  • FIG. 9 is a schematic diagram of the arrangement of the drive roller groups on both sides of the multi-rope guide wheel group in the embodiment of the present invention.
  • 10-1 and 10-2 are schematic diagrams of the arrangement of the steel wires at the bottom of the left container and the right container in the embodiment of the present invention.
  • Figure 1 shows the overall layout of an underground horizontal drive layout type ultra-deep traction system according to a preferred embodiment of the present invention.
  • the system includes two top wheels, two horizontally symmetrically arranged multi-rope guide wheels, four driving rollers, four rewinding rollers attached to the driving rollers, two containers, two reels, eight horizontally symmetrically arranged Single rope guide wheel, four drive wire ropes and one follower wire rope.
  • the container is composed of a left container 3-1 and a right container 3-2;
  • the sky wheel is composed of the main sky wheel 1-1 and the auxiliary sky wheel 1-2;
  • the multi-rope guide wheel group is composed of the left multi-rope Guide wheel 5-1 and right multi-rope guide wheel 5-2;
  • each drive roller group consists of a corresponding drive roller (left drive roller I7-1-1, left drive roller II 7-2-1, in turn)
  • left drive drum group consisting of two sets of drive drums and rewinding drum on the left, and two drive drums and
  • the right driving roller group composed of rewinding rollers is symmetrically distributed about the central axis of the main flywheel 1-1; each of the driving rollers is provided
  • Each single rope guide wheel group is composed of two corresponding guide wheels, that is, the left single rope guide wheel I6-1 and the left single rope guide wheel II 6-2 form a left single rope guide wheel group, the left single rope The guide wheel III6-3 and the left single rope guide wheel IV6-4 form a right single rope guide wheel group; all the single rope guide wheel groups have four single rope guide wheels on the left and four single rope guide wheels on the right All are relatively staggered in their axial direction.
  • the rope grooves of the single rope guide wheel group wound by each wire rope in the four driving wire rope groups correspond to the four corresponding rope grooves of the four rewinding drums in turn.
  • the tension balance adjustment system is composed of the pump station 12, the left hydraulic cylinder group 10-1, the left hydraulic pipeline 10-2, the right hydraulic cylinder group 11-1, the right hydraulic pipeline 11-2, the reel I13 and the reel
  • the cylinder II 14 is composed of; the tension balance adjustment system independently controls the single rope guide wheel groups on the left and right sides, that is, the hydraulic pipeline 10-1 and the right hydraulic cylinder group 11-1 are not connected; the left and right of the tension balance adjustment system
  • Each guide wheel in the side single rope guide wheel group is equipped with a hydraulic cylinder, and each single rope guide wheel has freedom to move left and right in the horizontal direction.
  • the main skywheel 1-1 is placed above the ground, and the auxiliary skywheel 1-2 is placed at the lower right of the main skywheel 1-1.
  • the follower wire rope 2 hangs around both ends of the upper rim half of the main sky wheel 1-1, the left end hanging part is connected to the top of the left container 3-1, the right end hanging part bypasses the auxiliary sky wheel 1-2, and the left rim is connected to the right Top of container 3-2.
  • the bottom end of the left container 3-1 is equipped with a reel I13 and a reel II 14, a first drive wire rope 9-1 and a second drive wire rope 9-2 are wound on the reel I13, and a third drive wire rope 9 is wound on the reel II 14 -3 and fourth drive wire rope 9-4.
  • FIG. 2 shows the arrangement of the first drive wire rope 9-1.
  • the first drive wire rope 9-1 starts from the reel I13 and bypasses the first rope on the right rim of the left multi-rope guide wheel 5-1 Groove, left single rope guide wheel I6-1, first rope groove of left drive drum I7-1-1, first rope groove of left rewind drum I7-1-2, left drive drum I7-1-1
  • FIG. 3 shows the arrangement of the second drive wire rope 9-2.
  • the second drive wire rope 9-2 starts from the reel I13 and bypasses the second rope on the right rim of the left multi-rope guide wheel 5-1 Groove, left single rope guide wheel II 6-2, third rope groove of left drive drum I7-1-1, second rope groove of left rewind drum I7-1-2, left drive drum I7-1-1
  • FIG. 4 shows the arrangement of the third drive wire rope 9-3.
  • the third drive wire rope 9-3 starts from the reel II14 and bypasses the third rope on the right rim of the left multi-rope guide wheel 5-1 Groove, left single rope guide wheel III6-3, fifth rope groove of left drive drum I7-1-1, third rope groove of left rewind drum I7-1-2, left drive drum I7-1-1
  • FIG. 5 shows the arrangement of the fourth drive wire rope 9-4.
  • the fourth drive wire rope 9-4 starts from the reel II14 and bypasses the fourth rope on the right rim of the left multi-rope guide wheel 5-1 Groove, left single rope guide wheel IV6-4, seventh rope groove of left drive drum I7-1-1, fourth rope groove of left rewind drum I7-1-2, left drive drum I7-1-1
  • the relative distribution of the wheels the left drive roller group (sequentially left drive roller I7-1-1 and left rewind roller I7-1-2, left drive roller II 7-2-1 and left Rewinding roller II7-2-2) and right drive roller group (in order of right drive roller II7-4-1 and right rewind roller II7-4-2, right drive roller I7-3-1 and right rewind roller I7-3-2) Symmetrically distributed about the central axis of the main sky wheel 1-1.
  • the single rope guide wheel group around each wire rope in the drive wire rope group (including the first drive wire rope 9-1, the second drive wire rope 9-2, the third drive wire rope 9-3, and the fourth drive wire rope 9-4) ( Including left single rope guide wheel I6-1 and right single rope guide wheel IV8-4, left single rope guide wheel II6-2 and right single rope guide wheel III8-3, left single rope guide wheel III6-3 and right single rope guide
  • the rope groove of the wheel II8-2, the left single rope guide wheel IV6-4 and the right single rope guide wheel I8-1) are sequentially followed by four rewinding drums (ie left rewinding drum I7-1-2, left rewinding drum II7 -2-2, the four corresponding rope grooves of the right rewinding drum I 7-3-2 and the right rewinding drum II 7-4-2).
  • left single rope guide wheel I6-1 left single rope guide wheel II 6-2, left single rope guide wheel III 6-3 and left single rope guide wheel IV 6-4
  • the single rope guide wheels (right single rope guide wheel I 8-1, right single rope guide wheel II 8-2, right single rope guide wheel III 8-3 and right single rope guide wheel IV 8-4) are relatively staggered in their axial directions Layout.
  • Figure 7 shows the four single rope guide wheels on the left side ((ie, left single rope guide wheel I6-1, left single rope guide wheel II 6-2, left single rope guide wheel III 6-3 and left single rope guide wheel IV 6 4) The position distribution and the distribution of the left driving drum group.
  • the four single-rope guide wheels are arranged relatively staggered in the axial and radial directions.
  • FIG 8 shows the two drive roller groups on the left (ie, left drive roller I7-1-1 and left rewind roller I7-1-2, left drive roller II7-2-1 and left rewind roller II7-2-2)
  • the relative distribution position and the rope winding method have been described above.
  • the relative arrangement of the driving roller and the rewinding roller in the driving guide wheel group will be described.
  • each driving roller group there are 8 rope grooves on each driving roller, and 4 rope grooves on each rewinding roller.
  • the rope grooves in the rewinding drum are arranged opposite to the lands of two adjacent rope grooves of the driving drum.
  • Fig. 9 is the arrangement position and the winding method of the drive roller group on both sides of the multi-rope guide wheel group (the left-side multi-rope guide wheel 5-1 and the right-side multi-rope guide wheel 5-2).
  • Figures 10-1 and 10-2 show the connection method of the bottom rope of the left container 3-1 and the right container 3-2, respectively.
  • the bottom of the left container 3-1 is equipped with a reel I13 and a reel II14.
  • the first driving wire rope 9-1 and the second driving wire rope 9-2, the reel II 14 is wound with the third driving wire rope 9-3 and the fourth driving wire rope 9-4, and the four driving wire ropes are from their corresponding reel I 13 or
  • the ropes on both sides of the reel II14 the specific arrangement is illustrated in Figure 10-1: the bottom of the left container 3-1 is fixedly arranged with a bearing support I13 and II14, two connected to each I13 In the driving steel wire rope, one end of each driving steel wire rope is connected to the winding drum I13 near the end surface of the outer cylindrical side of the winding drum I13 through the wire rope buckle; the two lifting wire ropes have the same spiral winding direction on the winding drum I13; The output ends of the driving wire ropes are distributed on both sides of the middle of the drum shaft,
  • the main sky wheel 1-1, the drive drum group (left drive drum group + right drive drum group) and the single rope guide wheel group rotate clockwise; the auxiliary sky wheel 1-2 and more
  • the rope guide wheel set rotates counterclockwise.
  • the closed system formed by the driving wire rope group and the following wire rope 2 moves clockwise along the corresponding winding path.
  • the steering of each wheel and the movement state of the wire rope are opposite to the movement state of the left container 3-1 when lifted.
  • each drive wire rope is transmitted to the hydraulic cylinders in the left hydraulic cylinder group 10-1 through the four single rope guide wheels on the left.
  • the left hydraulic cylinder group 10-1 acts through the control of the left hydraulic line 10-2, and readjusts the position of the four single rope guide wheels on the left until the tension of the left part of each wire rope of the driving wire rope group is equal.
  • Each hydraulic cylinder in the side hydraulic cylinder group 10-1 stops operating, and each of the four single rope guide wheels on the left side stops moving.
  • the tension of the drive wire ropes on the right side of the drive wire rope group is transmitted to the hydraulic cylinders in the right hydraulic cylinder group 11-1 through the four single rope guide wheels on the right side.
  • the hydraulic cylinders in the right hydraulic cylinder group 11-1 act through the control of the right hydraulic line 11-2, and readjust the position of each of the four single rope guide wheels on the right until the wire rope group is driven.
  • the tension of the right part of the wire rope is equal to the tension of each rope on the left side of the driving wire rope.
  • Each hydraulic cylinder in the right hydraulic cylinder group 11-1 stops operating, and each of the four single rope guide wheels on the right stops moving.
  • the first driving wire rope 9-1 and the second driving wire rope 9-2 connected to the drum I13 respectively apply a torque with a tendency to rotate in the opposite direction to the drum I13.
  • the drum I13 rotates from the side of the first drive wire rope 9-1 and the second drive wire rope 9-2 with the lower tension, the steel wire rope with the higher tension slacks from the drum, and the steel wire rope with the lower tension is wound tightly on the drum Until the tension of the two steel ropes is equal and the drum no longer rotates.
  • the tension adjustment mode of the third driving wire rope 9-3 and the fourth driving wire rope 9-4 connected to the reel II 14 is the same as that of the reel I13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

一种地下水平驱动布置式超深牵引系统及使用方法，包括天轮组、多绳左右导向轮组、单绳导向轮组、驱动钢丝绳、随动钢丝绳（2）、驱动滚筒组、左右容器和张力平衡系统；天轮组包括主天轮（1-1）和辅助天轮（1-2）；单绳导向轮组、驱动钢丝绳以及驱动滚筒组的数量均为偶数，张力平衡调节系统由泵站（12）、左右侧液压缸组和偶数个卷筒组成；卷筒装在左边容器的底部，每个卷筒上缠绕两根驱动钢丝绳；右边容器（3-2）底部与所有驱动钢丝绳相连。本发明能够大大提高系统运载量，提高驱动钢丝绳在滚筒上的包围角，使得驱动钢丝绳与轮间的摩擦力增大，能减小驱动钢丝绳打滑，降低驱动钢丝绳磨损速度，结构简单，可靠性程度高。

Description

一种地下水平驱动布置式超深牵引系统及使用方法 技术领域
本发明涉及一种地下水平驱动布置式超深牵引系统及使用方法，适用于超深立井多绳牵引系统，尤其适用于大载荷提升系统。
背景技术
就现代工业而言，无论从能源的角度还是从生产制造的角度来看，矿产资源的开发利用都是极其重要的。从工业革命开始至今，长久的开采已经使得靠近地表的矿产资源难以高效的维持工业的发展，开发地球深处的资源已是当今很多国家必须考虑的问题，所以超深井采矿工程技术的发展就显得非常关键。
在超深井采矿工程中，矿井提升系统是一项核心的部分，牵引系统的好坏直接决定着采矿效率的高低。一般的提升系统都以其中的天轮为驱动装置，但这会使得驱动装置不仅要受到自然磨损，还要承受来自提升物的大载荷，无疑会降低系统的寿命，还有可能导致事故的发生。因此通过具体手段改进牵引系统的结构排布有着十分重要的作用。
发明内容
为了克服现有技术的上述不足，本发明提供一种地下水平驱动布置式超深牵引系统及使用方法，该牵引系统能够大大提高系统的运载量，提高驱动钢丝绳在滚筒上的包围角，使得驱动钢丝绳与轮间的摩擦力增大，能很大程度上减小驱动钢丝绳打滑的可能，降低驱动钢丝绳磨损的速度，结构简单，可靠性程度高。
本发明解决其技术问题采用的技术方案是：包括天轮组、多绳导向轮组、单绳导向轮组、驱动钢丝绳、随动钢丝绳、驱动滚筒组、容器和张力平衡系统，天轮组置于地面以上；所述的多绳导向轮组由一个左边多绳导向轮和一个右边多绳导向轮成，左边多绳导向轮和右边多绳导向轮均布置在立井的井筒底部，且二者的中心轴线水平对称布置；所述的单绳导向轮组、驱动钢丝绳的数量均为M以及驱动滚筒组的数量为N，M为2～10，N为i+j，单绳导向轮组和驱动滚筒组均以水平对称的形式排布于绳导向轮组下方两侧；每个驱动滚筒组由分别相对应的一个驱动滚筒和一个复绕滚筒组成，每个单绳导向轮组分别由相对应的两个导向轮组成；所述的容器由一个左边容器和一个右边容器组成；所述的随动钢丝绳为一根；所述的张力平衡调节系统包括泵站、液压缸和卷筒，单绳导向轮组的每个导向轮均配有一个液压缸，偶数个卷筒都安装在左边容器的底部，各卷筒的中轴线都与主天轮中轴线相垂直，每个卷筒上缠绕两根驱动钢丝绳；右边容器的底部与所有驱动钢丝绳相连；每根驱动钢丝绳从其对应的卷筒绕起，依次经左多绳导向轮、该驱动钢丝绳左端水平对应的单绳导向轮、立井井筒底部左侧第一个驱动滚筒、立井井筒底部左侧第一个复绕滚筒、立井井筒底部左侧第二个驱动滚筒、立井井筒底部左侧第二个复绕滚筒、……、立井井筒底部左侧第i个驱动滚筒、立井井筒底部左侧第i个复绕滚筒、立井井筒底部右侧第一个复绕滚筒、立井井筒底部右侧第一个驱动滚筒、立井井筒底部右侧第二个复绕滚筒、立井井筒底部右侧第二个驱动滚筒、……、立井井筒底部右侧第j个复绕滚筒、立井井筒底部右侧第j个驱动滚筒、 该驱动钢丝绳右端水平对应的单绳导向轮、右多绳导向轮以及右边容器(3-2)，其中i为1～4、j为1～4。
其使用方法，具体过程如下：
当左边容器提升时，主天轮，驱动滚筒组和单绳导向轮组顺时针转动；辅助天轮和多绳导向轮组逆时针转动；驱动钢丝绳组和随动钢丝绳构成的闭合系统沿着相应的缠绕路径顺时针运动；当右边容器提升时，各轮的转向和钢丝绳的运动状态与左边容器提升时的运动状态相反；当驱动钢丝绳组的左右两侧张力不均时，各驱动钢丝绳所受的张力通过左侧M个单绳导向轮各轮分别传递给左侧液压缸组中各自依附的液压缸；左侧液压缸组通过左侧液压管路的控制发生动作，重新调节左侧M个单绳导向轮的位置，直至驱动钢丝绳组各根钢丝绳左侧部分的张力相等，左侧液压缸组中各液压缸停止动作，左侧M个单绳导向轮中各导向轮停止移动；驱动钢丝绳组右侧各驱动钢丝绳所受的张力通过右侧M个单绳导向轮各轮分别传递给右侧液压缸组中各自依附的液压缸；右侧液压缸组中的各液压缸通过右侧液压管路的控制发生动作，重新调节右侧的M个单绳导向轮中各导向轮的位置，直至驱动钢丝绳组各根钢丝绳右侧部分的张力和驱动钢丝绳左侧各绳的张力相等，右侧液压缸组中各液压缸停止动作，右侧M个单绳导向轮中各导向轮停止移动；与每一个卷筒连接的两条驱动钢丝绳，分别对该卷筒施加方向相反的有转动倾向的力矩；卷筒从两个驱动钢丝绳中张力较小的一侧转动，张力较大的钢丝绳从卷筒上松下，张力较小的钢丝绳在卷筒上绕紧，直至两条钢丝绳张力相等，卷筒不再转动。
相比现有技术，本发明的一种地下水平驱动布置式超深牵引系统及使用方法，具有以下优势：
1.该系统将驱动滚筒装置置于地下水平排布，通过驱动滚筒的转动实现容器的提升，比将驱动装置安装在天轮相比具有更高的可靠性，减少事故发生的可能性；
2.该系统的驱动装置集中，便于维修；且可根据实际工况选择合适数目的液压驱动装置，负载量较大，适用性较广泛；
3.该系统是多绳导向和单绳导向相结合的绕绳方式，能有效平衡驱动钢丝绳的张力，与传统的提升系统相比能充分发挥驱动钢丝绳的性能，延长其使用寿命。
4.多绳及多驱动装置的特点大大提高了系统的运载量，多组驱动滚筒的排布提高了驱动钢丝绳在滚筒上的包围角，使得驱动钢丝绳与轮间的摩擦力增大，很大程度上减小了驱动钢丝绳打滑的可能，降低了驱动钢丝绳磨损的速度。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明一个实施例的主视图。
图2是本发明实施例中第一驱动钢丝绳的绕绳方式示意图。
图3是本发明实施例中第二驱动钢丝绳的绕绳方式示意图。
图4是本发明实施例中第三驱动钢丝绳的绕绳方式示意图。
图5是本发明实施例中第四驱动钢丝绳的绕绳方式示意图。
图6是本发明实施例中驱动钢丝绳的排布俯视图。
图7是本发明实施例中地下布置左侧的部分的结构示意图。
图8是本发明实施例中左侧驱动滚筒组的绕绳细节示意图。
图9是本发明实施例中多绳导向轮组两侧驱动滚筒组的排布示意图。
图10-1和10-2分别是本发明实施例中左容器和右容器底部钢丝绳的排布示意图。
图中：1-1、主天轮，1-2、辅助天轮，2、随动钢丝绳，3-1、左边容器，3-2、右边容器，4、防坠网，5-1、左边多绳导向轮，5-2、右边多绳导向轮，6-1、左单绳导向轮Ⅰ，6-2、左单绳导向轮Ⅱ，6-3、左单绳导向轮Ⅲ，6-4、左单绳导向轮Ⅳ，8-1、右单绳导向轮Ⅰ，8-2、右单绳导向轮Ⅱ，8-3、右单绳导向轮Ⅲ，8-4、右单绳导向轮Ⅳ，7-1-2、左复绕滚筒Ⅰ，7-2-2、左复绕滚筒Ⅱ，7-3-2、右复绕滚筒Ⅰ，7-4-2、右复绕滚筒Ⅱ，7-1-1、左驱动滚筒Ⅰ，7-2-1、左驱动滚筒Ⅱ，7-3-1、右驱动滚筒Ⅰ，7-4-1、右驱动滚筒Ⅱ，9-1、第一驱动钢丝绳，9-2、第二驱动钢丝绳，9-3、第三驱动钢丝绳，9-4、第四驱动钢丝绳，10-1、左侧液压缸组，10-2、左侧液压管路，11-1、右侧液压缸组，11-2、右侧液压管路，12、泵站，13、卷筒Ⅰ，14、卷筒Ⅱ。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明的保护范围。
图1所示为本发明一个较佳实施例的地下水平驱动布置式超深牵引系统的整体布置形式。该系统包括两个天轮，两个水平对称布置的多绳导向轮，四个驱动滚筒，四个依附于驱动滚筒的复绕滚筒，两个容器，两个卷筒，八个水平对称布置的单绳导向轮，四根驱动钢丝绳和一根随动钢丝绳。所述的容器由一个左边容器3-1和一个右边容器3-2组成；所述的天轮由主天轮1-1和辅助天轮1-2组成；多绳导向轮组由左边多绳导向轮5-1和右边多绳导向轮5-2组成；每个驱动滚筒组由分别相对应的一个驱动滚筒(依次为左驱动滚筒Ⅰ7-1-1、左驱动滚筒Ⅱ7-2-1、右驱动滚筒Ⅰ7-3-1和右驱动滚筒Ⅱ7-4-1)和一个复绕滚筒(依次为左复绕滚筒Ⅰ7-1-2、左复绕滚筒Ⅱ7-2-2、右复绕滚筒Ⅰ7-3-2和右复绕滚筒Ⅱ7-4-2)组成；由位于左侧的两组驱动滚筒和复绕滚筒构成的左侧驱动滚筒组，与由位于右侧的两组驱动滚筒和复绕滚筒构成的右侧驱动滚筒组，关于主天轮1-1的中轴线对称分布；每个所述的驱动滚筒上都设有8个绳槽，每个复绕滚筒上均设有4个绳槽，每个多绳导向轮上均设有四个绳槽。每个单绳导向轮组分别由相对应的两个导向轮组成，即左单绳导向轮Ⅰ6-1和左单绳导向轮Ⅱ6-2组成一个左侧的单绳导向轮组，左单绳导向轮Ⅲ6-3和左单绳导向轮Ⅳ6-4组成一个右侧的单绳导向轮组；所有的单绳导向轮组中左侧四个单绳导向轮和右侧四个单绳导向轮均在其轴向方向相对错开布置。四根驱动钢丝绳组中各条钢丝绳所绕的单绳导向轮组的绳槽依次和四个复绕滚筒的四个相应的绳槽对应。张力平衡调节系统由泵站12、左侧液压缸组10-1、左侧液压管路10-2、右侧液压缸组11-1、右侧液压管路11-2、卷筒Ⅰ13和卷筒Ⅱ14组成；张力平衡调节系统分别对左右两侧的单绳导向轮组独立进行控制，即液压管路10-1和右侧液压缸组11-1不连通；所述张力平衡调节系统左右两侧单绳导向轮组中的每个导向轮均配有一个液压缸，各单绳导向轮均有沿水平方向左右运动的自由度。
继续参见图1，主天轮1-1置于地面以上，辅助天轮1-2置于主天轮1-1右下方。随动钢丝绳2绕过主天轮1-1的上轮缘半周两端下垂，左端下垂部分连接于左边容器3-1的顶端， 右端下垂部分绕过辅助天轮1-2左轮缘连接于右边容器3-2顶端。左边容器3-1底端装有卷筒Ⅰ13和卷筒Ⅱ14，卷筒Ⅰ13上绕有第一驱动钢丝绳9-1和第二驱动钢丝绳9-2，卷筒Ⅱ14上面绕有第三驱动钢丝绳9-3和第四驱动钢丝绳9-4。所述左边多绳导向轮5-1和右边多绳导向轮5-2的中心轴线水平对称布置，靠近左边多绳导向轮5-1和右边多绳导向轮5-2的上方位置装有防止杂物坠落的防坠网4。如图2所示为第一驱动钢丝绳9-1的排布图，第一驱动钢丝绳9-1从卷筒Ⅰ13开始，绕过左边多绳导向轮5-1右侧轮缘的第一个绳槽，左单绳导向轮Ⅰ6-1，左驱动滚筒Ⅰ7-1-1的第一个绳槽，左复绕滚筒Ⅰ7-1-2的第一个绳槽，左驱动滚筒Ⅰ7-1-1的第二个绳槽，左驱动滚筒Ⅱ7-2-1的第二个绳槽，左复绕滚筒Ⅱ7-2-2的第一个绳槽，左驱动滚筒Ⅱ7-2-1的第一个绳槽，右驱动滚筒Ⅰ7-3-1的第一个绳槽，右复绕滚筒Ⅰ7-3-2的第一个绳槽，右复绕滚筒Ⅰ7-3-1的第二个绳槽，右驱动滚筒Ⅱ7-4-1的第二个绳槽，右复绕滚筒Ⅱ7-4-2的第一个绳槽，右驱动滚筒Ⅱ7-4-1的第一个绳槽，右单绳导向轮Ⅳ8-4，右边多绳导向轮5-2第一个绳槽，右边容器3-2底部。
如图3所示为第二驱动钢丝绳9-2的排布图，第二驱动钢丝绳9-2从卷筒Ⅰ13开始，绕过左边多绳导向轮5-1右侧轮缘的第二个绳槽，左单绳导向轮Ⅱ6-2，左驱动滚筒Ⅰ7-1-1的第三个绳槽，左复绕滚筒Ⅰ7-1-2的第二个绳槽，左驱动滚筒Ⅰ7-1-1的第四个绳槽，左驱动滚筒Ⅱ7-2-1的第四个绳槽，左复绕滚筒Ⅱ7-2-2的第二个绳槽，左驱动滚筒Ⅱ7-2-1的第三个绳槽，右驱动滚筒Ⅰ7-3-1的第三个绳槽，右复绕滚筒Ⅰ7-3-2的第二个绳槽，右复绕滚筒Ⅰ7-3-1的第四个绳槽，右驱动滚筒Ⅱ7-4-1的第四个绳槽，右复绕滚筒Ⅱ7-4-2的第二个绳槽，右驱动滚筒Ⅱ7-4-1的第三个绳槽，右单绳导向轮Ⅲ8-3，右边多绳导向轮5-2第二个绳槽，右边容器3-2底部。
如图4所示为第三驱动钢丝绳9-3的排布图，第三驱动钢丝绳9-3从卷筒Ⅱ14开始，绕过左边多绳导向轮5-1右侧轮缘的第三个绳槽，左单绳导向轮Ⅲ6-3，左驱动滚筒Ⅰ7-1-1的第五个绳槽，左复绕滚筒Ⅰ7-1-2的第三个绳槽，左驱动滚筒Ⅰ7-1-1的第六个绳槽，左驱动滚筒Ⅱ7-2-1的第六个绳槽，左复绕滚筒Ⅱ7-2-2的第三个绳槽，左驱动滚筒Ⅱ7-2-1的第五个绳槽，右驱动滚筒Ⅰ7-3-1的第五个绳槽，右复绕滚筒Ⅰ7-3-2的第三个绳槽，右驱动滚筒Ⅰ7-3-1的第六个绳槽，右驱动滚筒Ⅱ7-4-1的第六个绳槽，右复绕滚筒Ⅱ7-4-2的第三个绳槽，右驱动滚筒Ⅱ7-4-1的第五个绳槽，右单绳导向轮Ⅱ8-2，右边多绳导向轮5-2的第三个绳槽，右边容器3-2底部。
如图5所示为第四驱动钢丝绳9-4的排布图，第四驱动钢丝绳9-4从卷筒Ⅱ14开始，绕过左边多绳导向轮5-1右侧轮缘的第四个绳槽，左单绳导向轮Ⅳ6-4，左驱动滚筒Ⅰ7-1-1的第七个绳槽，左复绕滚筒Ⅰ7-1-2的第四个绳槽，左驱动滚筒Ⅰ7-1-1的第八个绳槽，左驱动滚筒Ⅱ7-2-1的第八个绳槽，左复绕滚筒Ⅱ7-2-2的第四个绳槽，左驱动滚筒Ⅱ7-2-1的第七个绳槽，右驱动滚筒Ⅰ7-3-1的第七个绳槽，右复绕滚筒Ⅰ7-3-2的第四个绳槽，右驱动滚筒Ⅰ7-3-1的第八个绳槽，右驱动滚筒Ⅱ7-4-1的第八个绳槽，右复绕滚筒Ⅱ7-4-2的第四个绳槽，右驱动滚筒Ⅱ7-4-1的第七个绳槽，右单绳导向轮Ⅱ8-2，右边多绳导向轮5-2的第四个绳槽，右边容器3-2底部。
如图6所示为各轮的相对分布位置，左侧驱动滚筒组(依次为左驱动滚筒Ⅰ7-1-1和左复绕滚筒Ⅰ7-1-2、左驱动滚筒Ⅱ7-2-1和左复绕滚筒Ⅱ7-2-2)和右侧驱动滚筒组(依次为右驱动滚筒Ⅱ7-4-1和右复绕滚筒Ⅱ7-4-2、右驱动滚筒Ⅰ7-3-1和右复绕滚筒Ⅰ7-3-2)关于 主天轮1-1的中轴线对称分布。驱动钢丝绳组(包括第一驱动钢丝绳9-1、第二驱动钢丝绳9-2、第三驱动钢丝绳9-3、第四驱动钢丝绳9-4)中各条钢丝绳所绕的单绳导向轮组(包括左单绳导向轮Ⅰ6-1和右单绳导向轮Ⅳ8-4、左单绳导向轮Ⅱ6-2和右单绳导向轮Ⅲ8-3、左单绳导向轮Ⅲ6-3和右单绳导向轮Ⅱ8-2、左单绳导向轮Ⅳ6-4和右单绳导向轮Ⅰ8-1)的绳槽依次和四个复绕滚筒(即左复绕滚筒Ⅰ7-1-2、左复绕滚筒Ⅱ7-2-2、右复绕滚筒Ⅰ7-3-2、右复绕滚筒Ⅱ7-4-2)的四个相应的绳槽对应。左侧四个单绳导向轮(即左单绳导向轮Ⅰ6-1、左单绳导向轮Ⅱ6-2、左单绳导向轮Ⅲ6-3和左单绳导向轮Ⅳ6-4)和右侧四个单绳导向轮(右单绳导向轮Ⅰ8-1、右单绳导向轮Ⅱ8-2、右单绳导向轮Ⅲ8-3和右单绳导向轮Ⅳ8-4)均在其轴向方向相对错开布置。
图7所示为左侧四个单绳导向轮((即左单绳导向轮Ⅰ6-1、左单绳导向轮Ⅱ6-2、左单绳导向轮Ⅲ6-3和左单绳导向轮Ⅳ6-4)的位置分布和左侧驱动滚筒组的分布。四个单绳导向轮轴向和径向均相对错开布置。
图8为左侧两个驱动滚筒组(即左驱动滚筒Ⅰ7-1-1和左复绕滚筒Ⅰ7-1-2、左驱动滚筒Ⅱ7-2-1和左复绕滚筒Ⅱ7-2-2)的相对分布位置，绕绳方式已在上文叙述，在此说明驱动导向轮组中驱动滚筒和复绕滚筒的相对布置方式。每一个驱动滚筒组中，各驱动滚筒上有8个绳槽，各复绕滚筒上有4个绳槽。复绕滚筒中的绳槽与驱动滚筒两个相邻绳槽的槽脊相对布置。
图9为多绳导向轮组(左边多绳导向轮5-1和右边多绳导向轮5-2)两侧的驱动滚筒组的布置位置和绕绳方式。
图10-1和10-2所示分别为左边容器3-1和右边容器3-2底部钢丝绳的连接方式，左边容器3-1底部安置卷筒Ⅰ13和卷筒Ⅱ14，卷筒Ⅰ13上绕有第一驱动钢丝绳9-1和第二驱动钢丝绳9-2，卷筒Ⅱ14上绕有第三驱动钢丝绳9-3和第四驱动钢丝绳9-4，四条驱动钢丝绳均从其相应的卷筒Ⅰ13或卷筒Ⅱ14两侧出绳，具体排布以图10-1为例说明：左边容器3-1底部通过轴承支座固定安置卷筒Ⅰ13和卷筒Ⅱ14，与每个卷筒Ⅰ13连接的两根驱动钢丝绳中，每根驱动钢丝绳的一端，通过钢丝绳卡扣在卷筒Ⅰ13的外圆柱侧面的靠近端面处与卷筒Ⅰ13连接；两根提升钢丝绳在卷筒Ⅰ13上有相同的螺旋缠绕方向；两条驱动钢丝绳的出绳端分布于卷筒轴中部的两侧，均从卷筒Ⅰ13下侧出绳。
当左边容器3-1提升时，主天轮1-1，驱动滚筒组(左侧驱动滚筒组+右侧驱动滚筒组)和单绳导向轮组顺时针转动；辅助天轮1-2和多绳导向轮组逆时针转动。驱动钢丝绳组和随动钢丝绳2构成的闭合系统沿着相应的缠绕路径顺时针运动。当右边容器3-2提升时，各轮的转向和钢丝绳的运动状态与左边容器3-1提升时的运动状态相反。
当驱动钢丝绳组的左右两侧张力不均时，各驱动钢丝绳所受的张力通过左侧四个单绳导向轮各轮分别传递给左侧液压缸组10-1中各自依附的液压缸。左侧液压缸组10-1通过左侧液压管路10-2的控制发生动作，重新调节左侧四个单绳导向轮的位置，直至驱动钢丝绳组各根钢丝绳左侧部分的张力相等，左侧液压缸组10-1中各液压缸停止动作，左侧四个单绳导向轮中各导向轮停止移动。驱动钢丝绳组右侧各驱动钢丝绳所受的张力通过右侧四个单绳导向轮各轮分别传递给右侧液压缸组11-1中各自依附的液压缸。右侧液压缸组11-1中的各液压缸通过右侧液压管路11-2的控制发生动作，重新调节右侧的四个单绳导向轮中各导向轮的位置，直至驱动钢丝绳组各根钢丝绳右侧部分的张力和驱动钢丝绳左侧各 绳的张力相等，右侧液压缸组11-1中各液压缸停止动作，右侧四个单绳导向轮中各导向轮停止移动。
与卷筒Ⅰ13连接的第一驱动钢丝绳9-1和第二驱动钢丝绳9-2，分别对卷筒Ⅰ13施加方向相反的有转动倾向的力矩。卷筒Ⅰ13从第一驱动钢丝绳9-1和第二驱动钢丝绳9-2中张力较小的一侧转动，张力较大的钢丝绳从卷筒上松下，张力较小的钢丝绳在卷筒上绕紧，直至两条钢丝绳张力相等，卷筒不再转动。与卷筒Ⅱ14连接的第三驱动钢丝绳9-3和第四驱动钢丝绳9-4的张力调节方式和卷筒Ⅰ13的调节方式一致。
以上所述，仅是本发明的较佳实施例，并非对本发明做任何形式上的限制，凡是依据本发明的技术实质，对以上实施例所做出任何简单修改和同等变化，均落入本发明的保护范围之内。

Claims (8)

  1. 一种地下水平驱动布置式超深牵引系统，包括天轮组、多绳导向轮组、单绳导向轮组、驱动钢丝绳、随动钢丝绳(2)、驱动滚筒组、容器和张力平衡系统，所述的容器由一个左边容器(3-1)和一个右边容器(3-2)组成；所述的随动钢丝绳(2)为一根；天轮组置于地面以上；其特征是：
    所述的多绳导向轮组由一个左边多绳导向轮(5-1)和一个右边多绳导向轮(5-2)成，左边多绳导向轮(5-1)和右边多绳导向轮(5-2)均布置在立井的井筒底部，且二者的中心轴线水平对称布置；
    所述的单绳导向轮组、驱动钢丝绳的数量均为M以及驱动滚筒组的数量为N，M为2～10，N为i+j，单绳导向轮组和驱动滚筒组均以水平对称的形式排布于绳导向轮组下方两侧；每个驱动滚筒组由分别相对应的一个驱动滚筒和一个复绕滚筒组成，每个单绳导向轮组分别由相对应的两个导向轮组成；
    所述的张力平衡调节系统包括泵站(12)、液压缸和卷筒，单绳导向轮组的每个导向轮均配有一个液压缸，偶数个卷筒都安装在左边容器(3-1)的底部，各卷筒的中轴线都与主天轮(1-1)中轴线相垂直，每个卷筒上缠绕两根驱动钢丝绳；右边容器(3-2)的底部与所有驱动钢丝绳相连；
    每根驱动钢丝绳从其对应的卷筒绕起，依次经左多绳导向轮、该驱动钢丝绳左端水平对应的单绳导向轮、立井井筒底部左侧第一个驱动滚筒、立井井筒底部左侧第一个复绕滚筒、立井井筒底部左侧第二个驱动滚筒、立井井筒底部左侧第二个复绕滚筒、……、立井井筒底部左侧第i个驱动滚筒、立井井筒底部左侧第i个复绕滚筒、立井井筒底部右侧第一个复绕滚筒、立井井筒底部右侧第一个驱动滚筒、立井井筒底部右侧第二个复绕滚筒、立井井筒底部右侧第二个驱动滚筒、……、立井井筒底部右侧第j个复绕滚筒、立井井筒底部右侧第j个驱动滚筒、该驱动钢丝绳右端水平对应的单绳导向轮、右多绳导向轮以及右边容器(3-2)，其中i为1～4、j为1～4。
  2. 根据权利要求1所述的一种地下水平驱动布置式超深牵引系统，其特征是：所述的天轮组由一个主天轮(1-1)和一个辅助天轮(1-2)组成；随动钢丝绳(2)绕过主天轮(1-1)，然后沿辅助天轮(1-2)的相对侧竖直向下，随动钢丝绳(2)的两端分别与左边容器(3-1)和右边容器(3-2)的上端连接。
  3. 根据权利要求1所述的一种地下水平驱动布置式超深牵引系统，其特征是：所述的张力平衡调节系统由泵站(12)、左侧液压缸组(10-1)、左侧液压管路(10-2)、右侧液压缸组(11-1)、右侧液压管路(11-2)和卷筒组成；泵站(12)通过左侧液压管路(10-2)、右侧液压管路(11-2)分别与左侧液压缸组(10-1)、右侧液压缸组(11-1)相连，单绳导向轮组中的每个导向轮均配有一个构成左侧液压缸组(10-1)或右侧液压缸组(11-1)的液压缸，各单绳导向轮均有沿水平方向左右运动的自由度。
  4. 根据权利要求1或2或3所述的一种地下水平驱动布置式超深牵引系统，其特征是：组成所述单绳导向轮组和驱动滚筒组的所有各种轮的中心轴线在空间上呈平行分布。
  5. 根据权利要求1或2或3所述的一种地下水平驱动布置式超深牵引系统，其特征是：所述所有的单绳导向轮组中左侧M个单绳导向轮和右侧M个单绳导向轮均在其轴向方向相对错开布置。
  6. 根据权利要求1或2或3所述的一种地下水平驱动布置式超深牵引系统，其特征是：每 个所述的驱动滚筒上都设有2M个绳槽，每个复绕滚筒上均设有M个绳槽，每个多绳导向轮上均设有M个绳槽；M根驱动钢丝绳组中各条钢丝绳所绕的单绳导向轮组的绳槽依次和M个复绕滚筒的四个相应的绳槽对应。
  7. 根据权利要求1或2或3所述的一种地下水平驱动布置式超深牵引系统，其特征是：在靠近所述多绳导向轮组的上方位置还装有防坠网(4)。
  8. 一种如权利要求1至7任一项所述地下水平驱动布置式超深牵引系统的使用方法，其特征是，具体过程如下：
    当左边容器(3-1)提升时，主天轮(1-1)，驱动滚筒组和单绳导向轮组顺时针转动；辅助天轮(1-2)和多绳导向轮组逆时针转动；驱动钢丝绳组和随动钢丝绳(2)构成的闭合系统沿着相应的缠绕路径顺时针运动；当右边容器(3-2)提升时，各轮的转向和钢丝绳的运动状态与左边容器(3-1)提升时的运动状态相反；
    当驱动钢丝绳组的左右两侧张力不均时，各驱动钢丝绳所受的张力通过左侧M个单绳导向轮各轮分别传递给左侧液压缸组(10-1)中各自依附的液压缸；左侧液压缸组(10-1)通过左侧液压管路(10-2)的控制发生动作，重新调节左侧M个单绳导向轮的位置，直至驱动钢丝绳组各根钢丝绳左侧部分的张力相等，左侧液压缸组(10-1)中各液压缸停止动作，左侧M个单绳导向轮中各导向轮停止移动；驱动钢丝绳组右侧各驱动钢丝绳所受的张力通过右侧M个单绳导向轮各轮分别传递给右侧液压缸组(11-1)中各自依附的液压缸；右侧液压缸组(11-1)中的各液压缸通过右侧液压管路(11-2)的控制发生动作，重新调节右侧的M个单绳导向轮中各导向轮的位置，直至驱动钢丝绳组各根钢丝绳右侧部分的张力和驱动钢丝绳左侧各绳的张力相等，右侧液压缸组(11-1)中各液压缸停止动作，右侧M个单绳导向轮中各导向轮停止移动；
    与每一个卷筒连接的两条驱动钢丝绳，分别对该卷筒施加方向相反的有转动倾向的力矩；卷筒从两个驱动钢丝绳中张力较小的一侧转动，张力较大的钢丝绳从卷筒上松下，张力较小的钢丝绳在卷筒上绕紧，直至两条钢丝绳张力相等，卷筒不再转动。
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