WO2011106954A1 - 一种梭车 - Google Patents

一种梭车 Download PDF

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Publication number
WO2011106954A1
WO2011106954A1 PCT/CN2010/074323 CN2010074323W WO2011106954A1 WO 2011106954 A1 WO2011106954 A1 WO 2011106954A1 CN 2010074323 W CN2010074323 W CN 2010074323W WO 2011106954 A1 WO2011106954 A1 WO 2011106954A1
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WO
WIPO (PCT)
Prior art keywords
cable
shuttle
speed
reel
control device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2010/074323
Other languages
English (en)
French (fr)
Inventor
金嵘
庄德胜
韩宇
石磊
杨庆丰
迟玉华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Equipment Co Ltd
Original Assignee
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Equipment Co Ltd
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 Hunan Sany Intelligent Control Equipment Co Ltd, Sany Heavy Equipment Co Ltd filed Critical Hunan Sany Intelligent Control Equipment Co Ltd
Publication of WO2011106954A1 publication Critical patent/WO2011106954A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4481—Arrangements or adaptations for driving the reel or the material
    • B65H75/4484—Electronic arrangements or adaptations for controlling the winding or unwinding process, e.g. with sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
    • B65H75/42—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles
    • B65H75/425—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles attached to, or forming part of a vehicle, e.g. truck, trailer, vessel

Definitions

  • the invention relates to the field of coal conveying machinery, in particular to a shuttle car. Background technique
  • the shuttle is a coal transportation machine in the underground.
  • the shuttle has a reel, and the reel is wound with a certain length of cable.
  • the reel When the shuttle is in operation, the reel performs cable collection or cable laying operation, so that the shuttle can reciprocate. Thereby achieving the purpose of coal transportation.
  • FIG. 1 is a schematic structural view of a typical shuttle car in the prior art.
  • the prior art shuttle comprises a wheel 5', the front end of which is provided with a cable guiding wheel 4'2, and the cable 4'1 on the reel bypasses the cable guiding wheel 4'2 and is connected to an external power source. Due to the uneven road and poor lighting, there is a phenomenon that the cable 4' 1 is easily pulled off by additional tension (such as the cable 4' 1 being pressed by the wheel y), which will lead to a safety accident. On the one hand, it will also affect work efficiency.
  • the cable 4'1 may be pulled apart by other additional pulling forces due to the narrow underground roadway and complicated working conditions.
  • the cable when the cable is pressed by the wheel, how to prevent the cable from being broken, thereby preventing a safety accident and affecting work efficiency, is an urgent problem to be solved by those skilled in the art. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a shuttle car which can prevent the occurrence of cable breakage when the cable is pressed by the wheel, thereby preventing a safety accident and affecting the work efficiency, thereby solving the above technical problem.
  • the invention provides a shuttle, comprising a reel, the reel is wound with a cable; the shuttle further comprises a wheel, a front end of the wheel is provided with a guiding wheel, and the cable is connected to the power supply around the guiding wheel;
  • the shuttle also includes:
  • a tension detecting device configured to detect a tensile force received by the cable, and send a signal
  • a control device configured to receive the signal, and issue an instruction to the shuttle and the reel; when the tension detecting device detects When the pulling force reaches a predetermined value, the speed of the shuttle is greater than or equal to the speed of the cable under the control of the control device;
  • the control device controls the reel to stop or reverse, and controls the shuttle to stop driving;
  • the control device controls the shuttle to stop traveling when the tension detected by the tension detecting device reaches a predetermined value and when the reel performs a cable discharging operation.
  • the tension detecting device comprises a roller, the roller is connected with a mechanical triggering element, the tension detecting device further comprises an elastic element, the elastic component is fixed at one end, and the other end is connected to the mechanical triggering component, the cable The roller is bypassed; the tension detecting device further includes a feedback element;
  • the mechanical triggering element moves toward a direction close to the feedback element when the tensile force to the cable is gradually increased and is equal to the predetermined value, and triggers the feedback element, the feedback element emitting the signal .
  • the feedback element is a travel switch.
  • the control device includes a hydraulic control device and an electrical control device; the feedback component is a cut-off width, the cut-off width is connected to the hydraulic control device through a feedback oil passage, and a pressure sensor is disposed on the feedback oil passage;
  • the shut-off valve When the mechanical triggering element triggers the shut-off valve, the shut-off valve is opened, the feedback oil passage is turned on, and the hydraulic control device sends out to the reel under the action of the feedback oil passage oil An instruction to stop or reverse;
  • the pressure sensor senses the pressure of the oil passage oil, and sends a signal to the electric control device, and the electric control device issues an instruction to stop the traveling to the shuttle.
  • the mechanical triggering element and the feedback element are both mounted on a guide wheel bracket of the shuttle.
  • the elastic element is a spring.
  • the spring is connected to an adjustment device for adjusting the preload of the spring.
  • the shuttle provided by the present invention is provided with a tension detecting device and a control device;
  • the tensile force detecting device is configured to detect a tensile force received by a portion of the cable wound on the guiding wheel, and send a signal;
  • the control device is configured to receive the signal and issue an instruction to the shuttle and the reel; when the tension detected by the tension detecting device reaches a predetermined value, under the control of the control device, The speed of the shuttle is greater than or equal to the speed of the cable.
  • the speed of the shuttle and the speed at which the cable is wound into the reel are positive, when the cable is pressed by the wheel, and when the shuttle is When the speed is greater than or equal to the speed at which the cable is wound into the reel, it is obvious that the cable will not be broken at this time; however, when the speed of the shuttle is less than the speed at which the cable is wound into the reel, the cable is tightened at this time.
  • the tension applied is gradually increased, and when the tension applied to the cable reaches a predetermined value, the tension detecting device detects the predetermined value and sends a signal to the control device, and the control device respectively issues an instruction to the shuttle power device or the reel power device, thereby
  • the speed of the shuttle is increased or the speed of the reel is reduced, or both the speed of the shuttle and the speed of the reel are increased such that the speed of the shuttle is greater than or equal to the speed at which the cable is wound into the reel.
  • the speed of the shuttle When the shuttle is driving to the right, if the cable reel performs the cable receiving operation, the speed of the shuttle is negative, the speed of the cable being wound into the reel is positive, and the speed of the shuttle is less than the speed of the cable.
  • the cable is tightened, and the tension applied to the cable is increased.
  • the tension applied to the cable reaches the predetermined value, the process described in the above paragraph is repeated, and finally the speed of the shuttle is greater than or equal to the speed of the cable. In this case, the following may be included.
  • the control device controls the shuttle to drive to the left so that its speed is positive and greater than or equal to the speed at which the cable is wound into the reel;
  • the shuttle continues to the right, and the control device controls the reel reversal , the cable laying operation, so that the speed of the cable is negative, and the speed of the shuttle is greater than or equal to the speed of the cable at this time;
  • the shuttle stops driving, the speed is zero, the reel Stop operation or reverse, the speed of the cable is zero or negative, and the speed of the shuttle is also greater than or equal to the speed of the cable.
  • all three technical solutions can make the speed of the shuttle be greater than or equal to the speed of the cable, thereby reducing the tension of the cable and preventing the occurrence of the pull-off phenomenon.
  • the speed of the shuttle and the speed at which the cable is unwound from the reel are negative, when the cable is pressed by the wheel, and when the shuttle is When the speed is greater than or equal to the speed at which the cable is wound into the reel, it is obvious that the cable will not be broken at this time; however, when the speed of the shuttle is less than the speed at which the cable is unwound from the reel, that is, the absolute value of the shuttle speed is greater than At this time, the absolute value of the cable speed, obviously the cable is tightened, the tension on the cable is gradually increased, and when the tension of the cable reaches a predetermined value, the above process is repeated, and finally the speed of the shuttle is greater than or equal to the cable from the reel.
  • the speed of the roll-out reduces the tension on the cable and prevents the breakage.
  • the shuttle provided by the present invention can prevent the occurrence of cable breakage when the cable is pressed by the wheel, thereby preventing a safety accident and affecting work efficiency.
  • FIG. 1 is a schematic structural view of a typical shuttle car in the prior art
  • FIG. 2 is a schematic structural view of a shuttle car according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a shuttle car according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a tensile force detecting device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a tensile force detecting device according to another embodiment of the present invention. detailed description
  • the core of the present invention is to provide a shuttle which can prevent the occurrence of cable breakage when the cable is pressed by the wheel, thereby preventing a safety accident and affecting work efficiency.
  • FIG. 2 is a schematic structural view of a shuttle car according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a shuttle car according to another embodiment of the present invention.
  • the shuttle provided by the present invention includes a reel 3 (shown in FIG. 2), and the reel 3 is wound with a cable 41; the shuttle further includes a wheel 5, The front end of the wheel 5 is provided with a guide wheel 42, and the cable 41 is connected to the power supply around the guide wheel 42; the speed at which the shuttle is driven to the left is defined as a positive value, and the speed when traveling to the right is a negative value; The speed of the reel 3 is positive, and the speed of the reeling from the reel 3 is a negative value.
  • the shuttle is driving to the left as the shuttle is driving to the left in FIG. 2, that is, the wheel 5 for counterclockwise rotation; the shuttle car traveling to the right is the shuttle car traveling to the right in FIG. 2, that is, the wheel 5 is rotated clockwise.
  • the shuttle provided by the present invention is further provided with a tensile force detecting device 1 and a control device 2;
  • the tensile force detecting device 1 is configured to detect the tensile force received by the cable 41, and send a signal.
  • the control device 2 is configured to receive the signal and issue an instruction to the shuttle and the reel 3; when the tension of the cable 41 detected by the tension detecting device 1 reaches a predetermined value, under the control of the control device 2, The speed of the shuttle is greater than or equal to the speed of the cable 41.
  • the predetermined value is smaller than the tensile force received when the cable 41 is pulled off; when the reel 3 performs the cable receiving operation, the speed of the cable 41 refers to the speed at which the cable 41 is wound into the reel 3. When the reel 3 is subjected to the cable discharging operation, the speed of the cable 41 refers to the speed at which the cable 41 is unwound from the reel 3.
  • the tension detecting device 1 detects the predetermined value and goes to the control device 2 Signaling, the control device 2 issues a finger to the shuttle power unit or the reel power unit
  • the control device 2 issues a finger to the shuttle power unit or the reel power unit
  • the control device 2 controls the shuttle to travel in the reverse direction, that is, travels to the left such that its speed is positive, and is greater than or equal to the cable 41 being wound into the reel 3
  • the shuttle continues to the right, the control device 2 controls the reel 3 to reverse, performs a cable-laying operation, so that the speed of the cable 41 is negative, and the speed of the shuttle is greater than or equal to the cable 41 at this time.
  • the speed that is, the absolute value of the shuttle speed is less than or equal to the absolute value of the speed of the cable 41 at this time; third, under the control of the control device 1, the shuttle stops driving, the speed is zero, the reel 3 When the operation is stopped or reversed, the speed of the cable 41 is zero or a negative value, and the speed of the shuttle is also greater than or equal to the speed of the cable 41.
  • the three technical solutions can make the speed of the shuttle higher than or equal to the speed of the cable 41, thereby reducing the tension of the cable 41 and preventing the occurrence of the pull-off phenomenon.
  • the speed of the shuttle and the speed at which the cable 41 is unwound from the reel 3 are both negative, when the cable 41 is pressed by the wheel 5, and
  • the speed of the shuttle is greater than or equal to the speed at which the cable 41 is unwound from the reel 3, it is apparent that the cable is not pulled off at this time; however, when the speed of the shuttle is less than the speed at which the cable 41 is unwound from the reel 3, That is, the absolute value of the shuttle speed is greater than the absolute value of the speed of the cable 41 at this time, and it is obvious that the cable 41 is tightened, and the pulling force of the cable 41 is gradually increased.
  • the type of the tension detecting device 1 is not limited, and the tension detecting device 1 can be used for real-time quantitative detection of the pulling force of the cable 41.
  • the control device 2 sends a signal; of course, the tension detecting device 1 can also be a tension sensing device, and the tension sensing device cannot detect in real time.
  • the cable pull value but can send a feedback signal to the control device 2 when the cable pull reaches a predetermined value, such as the pull force detecting device 1 consisting of the roller 11, the mechanical triggering element 12, the elastic member 13 and the feedback element 14 described hereinafter. .
  • the shuttle provided by the present invention can prevent the cable 41 from being broken when the cable 41 is pressed by the wheel 5, thereby preventing a safety accident and affecting work efficiency.
  • the tension detecting device 1 when the tension detected by the tension detecting device 1 reaches a predetermined value, and when the reel 3 performs the cable receiving operation, the tension detecting device 1 sends a signal to the control device 2, according to which the control device 2 goes to the reel 3 An instruction to stop or reverse (ie, the cable-laying operation) is issued, and an instruction to stop driving is issued to the shuttle.
  • the tension detecting device 1 When the tension detected by the tension detecting device reaches a predetermined value, and when the reel 3 performs the cable discharging operation, the tension detecting device 1 sends a signal to the control device 2, according to which the control device 2 sends a stop to the shuttle. Instructions.
  • the embodiment enables the shuttle to stop traveling and causes the reel 3 to stop or perform a cable discharging operation, thereby preventing not only the cable 41 being pressed by the wheel 5 but also being depressed. Cable breakage occurs and prevents cable breakage due to other extra tension.
  • this embodiment adopts a scheme in which the shuttle is stopped, and the reel 3 is stopped or the cable discharging operation is performed.
  • the technical means is relatively simple, and the program is tubular, and the operation is convenient.
  • FIG. 4 is a schematic structural view of a tensile force detecting device according to an embodiment of the present invention
  • FIG. 5 is a schematic structural view of a tensile force detecting device according to another embodiment of the present invention.
  • the tension detecting device 1 comprises a roller 11 to which the mechanical triggering element 12 is connected, the mechanical triggering element 12 is connected with a resilient element 13 fixed at one end, and the cable 41 bypasses the roller 11, such as As shown in FIG. 4 and FIG. 5, when the tension applied to the cable 41 is increased, the force of the cable 41 to the roller 11 is increased, and the force of the mechanical triggering member 12 to the elastic member 13 is increased.
  • the force of the triggering element 12 acting on the elastic element 13 is greater than the elastic element
  • the elastic member 13 is compressed, and the mechanical trigger member 12 is moved to the left; when the tension applied to the cable 41 is gradually increased to the predetermined value, the mechanical triggering member 12 just triggers the feedback member 14, feedback Element 14 sends a feedback signal.
  • the feedback component 14 may specifically be a travel switch, the mechanical trigger component 12 triggers the travel switch, the travel switch generates an action, and outputs a signal to the control device 2, according to the signal, the control device 2 to the reel power device and
  • the shuttle power unit issues a command to cause the reel 3 to stop or reverse, causing the shuttle to stop traveling.
  • the feedback element 14 can also be a shut-off valve.
  • the control device 2 can be divided into a hydraulic control device 21 and an electrical control device (not shown in FIG. 5), and the shut-off valve passes through the feedback oil passage.
  • 15 is connected to the hydraulic control device 21, and a pressure sensor 16 is provided on the feedback oil passage 15.
  • the shutoff valve is opened, the feedback oil passage 15 is turned on, and the flowing oil of the feedback oil passage 15 is fed back to the hydraulic control device 21 provided in the hydraulic main circuit, the hydraulic pressure The control device 21 in turn issues an instruction to the reel power unit to cause the reel 3 to stop or reverse.
  • a pressure sensor 16 is disposed on the feedback oil passage 15, and after sensing the pressure of the oil flowing from the feedback oil passage 15, the pressure sensor 16 sends a signal to the electrical control device, and the electrical control device The shuttle power unit issues a command to stop the shuttle.
  • a hydraulic component such as a shut-off valve is used to generate a trigger signal, and a trigger signal is generated with respect to an electrical component such as a travel switch or a photoelectric switch, thereby eliminating the electric control box used for packaging the electrical component, and also eliminating the coal safety certification.
  • the program can be implemented immediately, reducing both manufacturing costs and time costs.
  • both the mechanical triggering member 12 and the feedback member 14 are mounted on the guide wheel bracket 43 of the shuttle.
  • the elastic member 13 may specifically be a spring, and the spring may be further connected with an adjusting device for adjusting the preload of the spring.
  • the spring can be conveniently adjusted by means of the adjusting device, so that the spring has a suitable preloading force which ensures that the mechanical triggering element 12 just triggers when the cable 41 pulls to the predetermined value.
  • Feedback element 14 we can also adjust the spring so that when the cable 41 pulls the predetermined value, the mechanical triggering element 12 just triggers the feedback element 14 and makes this The spring also just reaches the compression limit position.

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  • Electric Cable Installation (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Description

一种梭车
本申请要求于 2010 年 03 月 04 日提交中国专利局、 申请号为 2010101270264、发明名称为"一种梭车"的中国专利申请的优先权， 其全部 内容通过引用结合在本申请中。 技术领域
本发明涉及煤炭输送机械领域， 特别涉及一种梭车。 背景技术
梭车是一种井下运煤机械， 梭车设有卷筒， 卷筒上缠绕有一定长度的 电缆， 梭车在工作时， 卷筒进行收缆或者放缆操作， 以便梭车能够往复行 走， 从而实现运煤目的。
请参考图 1 , 图 1为现有技术一种典型的梭车的结构示意图。
现有技术中的梭车包括车轮 5' , 车轮 5'的前端设有电缆导向轮 4' 2, 卷筒上的电缆 4' 1绕过电缆导向轮 4' 2, 并与外接电源连接。 由于井下道 路不平， 照明不佳， 因而存在着电缆 4' 1 易于受到额外拉力 （如电缆 4' 1 被车轮 y压住）而被拉断的现象， 这一方面将会导致发生安全事故， 另一 方面也会影响工作效率。
如图 1所示， 梭车向左行驶或者向右行驶时， 卷筒都有可能进行收缆 或者放缆操作。 当梭车向左行驶时， 此时如果卷筒进行放缆操作， 当电缆
4' 1被车轮压住时， 显然不会发生电缆 4' 1被拉断的现象； 此时如果电缆 卷筒进行收缆操作， 当电缆 4' 1被车轮压住时， 由于速度不一致有可能导 致电缆 4' 1被拉断的现象。
如图 1所示， 当梭车向右行驶时， 此时如果电缆卷筒进行收缆操作， 当电缆 4' 1被车轮压住时， 显然肯定会发生电缆 4' 1被拉断的现象； 此时 如果电缆卷筒进行放缆操作， 当电缆 4' 1被车轮压住时， 由于速度不一致 也有可能导致电缆 4' 1被拉断的现象。 在此需要说明的是， 所述梭车向左 行驶为梭车在图 1中向左行驶， 即为车轮 5 '作逆时针转动； 所述梭车向右 行驶为梭车在图 1中向右行驶， 即为车轮 5 '作顺时针转动。
此外， 除了电缆 4' 1被车轮 5 '压住而发生拉断现象外， 由于井下巷道 狭窄， 工况复杂， 电缆 4' 1有可能受到其他额外拉力而被拉断。 综上所述， 当电缆被车轮压住时， 如何防止电缆被拉断， 进而防止发 生安全事故和影响工作效率， 是本领域技术人员亟需解决的问题。 发明内容
本发明要解决的技术问题是提供一种梭车， 该梭车在电缆被车轮压住 时， 能够防止电缆拉断现象的产生， 进而防止发生安全事故和影响工作效 为解决上述技术问题， 本发明提供一种梭车， 包括卷筒， 所述卷筒缠 绕有电缆； 所述梭车还包括车轮， 所述车轮的前端设有导向轮， 所述电缆 绕过所述导向轮与电源连接； 所述梭车还包括：
拉力检测装置， 用于检测所述电缆受到的拉力， 并发出信号； 控制装置， 用于接收所述信号， 并向所述梭车和所述卷筒发出指令； 当所述拉力检测装置检测到的拉力达到预定值时， 在所述控制装置的 控制下， 所述梭车的速度大于或等于所述电缆的速度；
定义所述梭车向左行驶时的速度为正值， 向右行驶时的速度为负值； 定义所述电缆卷入所述卷筒的速度为正值，从所述卷筒卷出的速度为负值。
优选地,
当所述拉力检测装置检测到的拉力达到预定值并当所述卷筒进行收缆 操作时， 所述控制装置控制所述卷筒停止动作或者反转， 并控制所述梭车 停止行驶；
当所述拉力检测装置检测到的拉力达到预定值并当所述卷筒进行放缆 操作时， 所述控制装置控制所述梭车停止行驶。
优选地，所述拉力检测装置包括滚轮，所述滚轮连接有机械触发元件， 所述拉力检测装置还包括弹性元件， 所述弹性元件一端固定， 另一端与所 述机械触发元件连接， 所述电缆绕过所述滚轮； 所述拉力检测装置还包括 反馈元件；
当所述电缆受到的拉力逐渐增大并恰好等于所述预定值时， 所述机械 触发元件向靠近所述反馈元件的方向运动， 并正好触发所述反馈元件， 所 述反馈元件发出所述信号。
优选地， 所述反馈元件为行程开关。 优选地， 所述控制装置包括液压控制装置和电气控制装置； 所述反馈 元件为截止阔， 所述截止阔通过反馈油路与所述液压控制装置连接， 所述 反馈油路上设有压力传感器；
当所述机械触发元件触发所述截止阀时， 所述截止阀开启， 所述反馈 油路导通， 在所述反馈油路油液的作用下， 所述液压控制装置向所述卷筒 发出停止动作或反转的指令；
所述压力传感器感受到反馈油路油液的压力后， 向所述电气控制装置 发出信号， 所述电气控制装置向所述梭车发出停止行驶的指令。
优选地， 所述机械触发元件和所述反馈元件均安装于所述梭车的导向 轮支架上。
优选地， 所述弹性元件为弹簧。
优选地， 所述弹簧连接有调节装置， 所述调节装置用于调节所述弹簧 的预紧力。
在现有技术的基础上， 本发明所提供的梭车设有拉力检测装置和控制 装置； 所述拉力检测装置用于检测缠绕于所述导向轮上的电缆部分受到的 拉力， 并发出信号； 所述控制装置用于接收所述信号， 并向所述梭车和所 述卷筒发出指令； 当所述拉力检测装置检测到的拉力达到预定值时， 在所 述控制装置的控制下， 所述梭车的速度大于或等于所述电缆的速度。
当梭车向左行驶时， 此时如果电缆卷筒进行收缆操作， 此时梭车的速 度和电缆卷入卷筒的速度均为正值， 当电缆被车轮压住时， 并当梭车的速 度大于或者等于电缆卷入卷筒的速度时，显然此时电缆不会被拉断； 然而， 当梭车的速度小于电缆卷入卷筒的速度时， 此时电缆被拉紧， 电缆所受到 的拉力逐渐增大， 当电缆受到的拉力达到预定值时， 拉力检测装置检测到 该预定值， 并向控制装置发出信号， 控制装置分别向梭车动力装置或者卷 筒动力装置发出指令， 从而使得梭车的速度增大或者卷筒的速度减小， 或 者同时增大梭车的速度和减小卷筒的速度， 使得梭车的速度大于或等于电 缆卷入卷筒的速度。 当梭车向左行驶时，此时如果电缆卷筒进行放缆操作， 当电缆被车轮压住时， 显然不会增大电缆受到的拉力， 亦即不会发生电缆 被拉断的现象。 当梭车向右行驶时， 如果电缆卷筒进行收缆操作， 此时梭车的速度为 负值， 电缆卷入卷筒的速度为正值， 梭车的速度小于电缆的速度， 显然此 时电缆被拉紧， 电缆受到的拉力增大， 当电缆受到的拉力达到所述预定值 时，重复上段中所述过程，最终使得梭车的速度大于或者等于电缆的速度， 此时， 可以包括如下方案： 第一， 控制装置控制梭车向左行驶， 使得其速 度为正值， 并且大于或者等于电缆卷入卷筒的速度； 第二， 梭车继续向右 走， 控制装置控制卷筒反转， 进行放缆操作， 使得电缆的速度为负值， 并 使得梭车的速度大于或者等于此时电缆的速度； 第三， 在控制装置的控制 下， 梭车停止行驶， 速度为零， 卷筒停止操作或者反转， 电缆的速度为零 或者负值， 此时梭车的速度也是大于或者等于电缆的速度。 显然， 该三种 技术方案均能使得梭车的速度大于或者等于电缆的速度， 从而降低电缆受 到的拉力， 防止拉断现象的发生。
当梭车向右行驶时， 如果电缆卷筒进行放缆操作， 此时梭车的速度和 电缆从卷筒卷出的速度均为负值， 当电缆被车轮压住时， 并当梭车的速度 大于或者等于电缆卷入卷筒的速度时， 显然此时电缆不会被拉断； 然而， 当梭车的速度小于电缆从卷筒卷出的速度时， 亦即梭车速度的绝对值大于 此时电缆速度的绝对值， 显然电缆被拉紧， 电缆所受到的拉力逐渐增大， 当电缆受到的拉力达到预定值时， 重复上述过程， 最终使得梭车的速度大 于或等于电缆从卷筒卷出的速度， 从而降低电缆受到的拉力， 防止拉断现 象的发生。
由上可知， 本发明所提供的梭车在电缆被车轮压住时， 能够防止电缆 拉断现象的产生， 从而防止发生安全事故和影响工作效率。 附图说明
图 1为现有技术中一种典型的梭车的结构示意图；
图 2为本发明一种实施例中梭车的结构示意图；
图 3为本发明另一种实施例中梭车的结构示意图；
图 4为本发明一种实施例中拉力检测装置的结构示意图；
图 5为本发明另一种实施例中拉力检测装置的结构示意图。 具体实施方式
本发明的核心是提供一种梭车， 该梭车在电缆被车轮压住时， 能够防 止电缆拉断现象的产生， 进而防止发生安全事故和影响工作效率。
为了使本领域的技术人员更好地理解本发明的技术方案， 下面结合附 图和具体实施例对本发明作进一步的详细说明。
请参考图 2和图 3 , 图 2为本发明一种实施例中梭车的结构示意图； 图 3为本发明另一种实施例中梭车的结构示意图。
在一种实施例中， 如图 3所示， 本发明所提供的梭车， 包括卷筒 3 (示 于图 2中）， 卷筒 3缠绕有电缆 41 ; 所述梭车还包括车轮 5 , 车轮 5的前端 设有导向轮 42, 电缆 41绕过导向轮 42与电源连接； 定义所述梭车向左行 驶时的速度为正值， 向右行驶时的速度为负值； 定义电缆 41 卷入卷筒 3 的速度为正值， 从卷筒 3卷出的速度为负值； 在此需要说明的是， 所述梭 车向左行驶为梭车在图 2中向左行驶， 即为车轮 5作逆时针转动； 所述梭 车向右行驶为梭车在图 2中向右行驶， 即为车轮 5作顺时针转动。
在上述现有技术的基础上， 如图 2所示， 本发明所提供的梭车进一步 设有拉力检测装置 1和控制装置 2; 拉力检测装置 1用于检测电缆 41受到 的拉力， 并发出信号； 控制装置 2用于接收所述信号， 并向所述梭车和卷 筒 3发出指令； 当拉力检测装置 1检测到的电缆 41拉力达到预定值时，在 控制装置 2的控制下，所述梭车的速度大于或等于电缆 41的速度。在此需 要说明的是， 所述预定值要小于电缆 41拉断时所受到的拉力值； 当卷筒 3 进行收缆操作时， 电缆 41的速度指的是电缆 41卷入卷筒 3的速度， 当卷 筒 3进行放缆操作时，电缆 41的速度指的是电缆 41从卷筒 3卷出的速度。
如图 2所示， 当梭车向左行驶时， 此时如果卷筒 3进行收缆操作， 此 时梭车的速度和电缆 41卷入卷筒 3的速度均为正值， 当电缆 41被车轮 5 压住时，并当梭车的速度大于或者等于电缆 41卷入卷筒 3的速度时，显然 此时电缆 41不会被拉断； 然而， 当梭车的速度小于电缆 41卷入卷筒 3的 速度时， 此时电缆 41被拉紧， 电缆 41所受到的拉力逐渐增大， 当电缆 41 受到的拉力达到预定值时， 拉力检测装置 1检测到该预定值， 并向控制装 置 2发出信号， 控制装置 2分别向梭车动力装置或者卷筒动力装置发出指 令， 从而使得梭车的速度增大或者卷筒 3的速度减小， 或者同时增大梭车 的速度和减小卷筒 3的速度，进而使得梭车的速度大于或等于电缆 41卷入 卷筒 3的速度， 从而减小电缆受到的拉力， 防止拉断现象的发生。 当梭车 向左行驶时， 此时如果卷筒 3进行放缆操作， 当电缆 41被车轮 5压住时， 显然不会增大电缆 41受到的拉力， 亦即不会发生电缆 41被拉断的现象。
如图 2所示， 当梭车向右行驶时， 如果卷筒 3进行收缆操作， 此时梭 车的速度为负值， 电缆 41卷入卷筒 3的速度为正值，梭车的速度小于电缆 的速度， 显然此时电缆 41被拉紧， 电缆 41 受到的拉力增大， 当电缆 41 受到的拉力达到所述预定值时， 重复上段中所述过程， 最终使得梭车的速 度大于或者等于电缆 41的速度， 此时， 可以包括如下方案： 第一， 控制装 置 2控制梭车反向行驶， 即向左行驶， 使得其速度为正值， 并且大于或者 等于电缆 41卷入卷筒 3的速度； 第二， 梭车继续向右走， 控制装置 2控制 卷筒 3反转， 进行放缆操作， 使得电缆 41的速度为负值， 并使得梭车的速 度大于或者等于此时电缆 41的速度，亦即梭车速度的绝对值小于或者等于 此时电缆 41速度的绝对值；第三，在控制装置 1的控制下，梭车停止行驶， 速度为零， 卷筒 3停止操作或者反转， 电缆 41的速度为零或者负值， 此时 梭车的速度也是大于或者等于电缆 41的速度。显然，该三种技术方案均能 使得梭车的速度大于或者等于电缆 41的速度， 从而降低电缆 41受到的拉 力， 防止拉断现象的发生。
当梭车向右行驶时， 如果卷筒 3进行放缆操作， 此时梭车的速度和电 缆 41从卷筒 3卷出的速度均为负值， 当电缆 41被车轮 5压住时， 并当梭 车的速度大于或者等于电缆 41从卷筒 3卷出的速度时，显然此时电缆不会 被拉断； 然而， 当梭车的速度小于电缆 41从卷筒 3卷出的速度时， 亦即梭 车速度的绝对值大于此时电缆 41速度的绝对值， 显然电缆 41会被拉紧， 电缆 41所受到的拉力逐渐增大， 当电缆 41受到的拉力达到预定值时， 重 复上文中所述过程，最终使得梭车的速度大于或等于电缆 41从卷筒 3中卷 出的速度， 从而降低电缆 41受到的拉力， 防止拉断现象的发生。
最后， 需要指出的是， 在本实施例中， 对于拉力检测装置 1的类型不 作限制，该拉力检测装置 1既可以为对电缆 41拉力进行实时定量检测的装 置， 当检测到的电缆 41拉力值达到所述预定值时，就向控制装置 2发出信 号； 当然， 该拉力检测装置 1也可以为一种拉力感应装置， 该种拉力感应 装置并不能实时检测电缆拉力值， 但是能够在电缆拉力达到预定值时， 向 控制装置 2发出反馈信号，比如下文中所述的由滚轮 11、机械触发元件 12、 弹性元件 13和反馈元件 14组成的拉力检测装置 1。
综上所述，本发明所提供的梭车在电缆 41被车轮 5压住时， 能够防止 电缆 41拉断现象的产生， 从而防止发生安全事故和影响工作效率。
在上述实施例中， 我们可以做出进一步改进。 具体地， 当拉力检测装 置 1检测到的拉力达到预定值时， 并且当卷筒 3进行收缆操作时， 拉力检 测装置 1向控制装置 2发出信号， 根据该信号， 控制装置 2向卷筒 3发出 停止动作或反转（亦即放缆操作） 的指令， 同时并向所述梭车发出停止行 驶的指令。
当拉力检测装置检测到的拉力达到预定值时， 并且当卷筒 3进行放缆 操作时， 拉力检测装置 1向控制装置 2发出信号， 根据该信号， 控制装置 2向所述梭车发出停止行驶的指令。
显然，在电缆 41拉力达到预定值时，该种实施例能够使得梭车停止行 驶， 并且使得卷筒 3停止动作或者进行放缆操作， 因而不仅能够防止由于 电缆 41被车轮 5压住而导致的电缆拉断现象的发生， 而且能够防止由于 其他额外拉力所导致的电缆拉断现象的发生。
此外， 该种实施例采用使梭车停止行驶， 并且使卷筒 3停止动作或者 进行放缆操作的方案， 技术手段比较筒单、 程序筒化， 操作较为方便。
请参考图 4和图 5, 图 4为本发明一种实施例中拉力检测装置的结构 示意图； 图 5为本发明另一种实施例中拉力检测装置的结构示意图。
本发明的另一种实施例是在上述任一种实施例的基础上做出的改进。 具体地， 在该另一种实施例中， 拉力检测装置 1 包括滚轮 11 , 滚轮 11连 接有机械触发元件 12, 机械触发元件 12连接有一端固定的弹性元件 13, 电缆 41绕过滚轮 11 ,如图 4和图 5所示，当电缆 41所受到的拉力增大时， 电缆 41给滚轮 11的作用力随之增大， 机械触发元件 12给弹性元件 13的 作用力随之增大， 当机械触发元件 12作用于弹性元件 13的力大于弹性元 件 13的预紧力时， 弹性元件 13被压缩， 机械触发元件 12向左运动； 当电 缆 41所受到的拉力逐渐增大到所述预定值时， 机械触发元件 12恰好触发 反馈元件 14, 反馈元件 14发出反馈信号。
如图 4所示， 反馈元件 14具体可以为行程开关， 机械触发元件 12触 发该行程开关， 行程开关发生动作， 并向控制装置 2输出信号， 根据该信 号， 控制装置 2向卷筒动力装置和梭车动力装置发出指令， 从而使得卷筒 3停止动作或者反转， 使得梭车停止行驶。
如图 5所示， 反馈元件 14还可以为截止阀， 在该实施例中， 控制装置 2可以区分为液压控制装置 21和电气控制装置（图 5中未示出）， 截止阀 通过反馈油路 15与液压控制装置 21连接，反馈油路 15上设有压力传感器 16。
如图 5所示， 当机械触发元件 12触发截止阀时， 截止阀开启， 反馈油 路 15导通， 反馈油路 15的流动油液反馈于设于液压主回路的液压控制装 置 21 , 该液压控制装置 21进而向卷筒动力装置发出指令， 使得卷筒 3停 止动作或者反转。
如图 5所示， 反馈油路 15上设有压力传感器 16, 压力传感器 16感受 到反馈油路 15流动油液的压力后， 向所述电气控制装置发出信号，所述电 气控制装置向所述梭车动力装置发出指令， 从而使得梭车停止行驶。
本实施例采用截止阀等液压元件产生触发信号， 相对于采用行程开关 或者光电开关等电气元件产生触发信号， 省去了封装电气元件所采用的电 控箱， 同时也省去了煤安认证的程序， 因而可以马上实施， 既降低了制造 成本， 也降低了时间成本。
在上述实施例中， 机械触发元件 12和反馈元件 14均安装于梭车的导 向轮支架 43上。 如图 4和图 5所示， 弹性元件 13具体可以为弹簧， 所述 弹簧可以进一步连接有调节装置，用于调节所述弹簧的预紧力。在试车时， 通过所述调节装置可以方便地调节弹簧，从而使得弹簧具有适当的预紧力， 该适当的预紧力能够保证当电缆 41拉力达到所述预定值时，机械触发元件 12恰好触发反馈元件 14。 当然， 我们也可以调节弹簧， 使得当电缆 41拉 力达到所述预定值时， 机械触发元件 12恰好触发反馈元件 14, 并使得此 时所述弹簧也正好到达压缩极限位置。
以上对本发明所提供的一种梭车进行了详细介绍。 本文中应用了具体 个例对本发明的原理及实施方式进行了阐述， 以上实施例的说明只是用于 帮助理解本发明的方法及其核心思想。 应当指出， 对于本技术领域的普通 技术人员来说， 在不脱离本发明原理的前提下， 还可以对本发明进行若干 改进和修饰， 这些改进和修饰也落入本发明权利要求的保护范围内。

Claims

权 利 要 求
1、 一种梭车， 包括卷筒（3), 所述卷筒 （3)缠绕有电缆（41); 所述 梭车还包括车轮（5), 所述车轮（5) 的前端设有导向轮（42), 所述电缆
(41)绕过所述导向轮（42)与电源连接； 其特征在于， 所述梭车还包括： 拉力检测装置（1 ), 用于检测所述电缆（41) 受到的拉力， 并发出信 号；
控制装置（2), 用于接收所述信号， 并向所述梭车和所述卷筒（3)发 出指令；
当所述拉力检测装置（ 1 )检测到的拉力达到预定值时， 在所述控制装 置（2) 的控制下， 所述梭车的速度大于或等于所述电缆（41) 的速度； 定义所述梭车向左行驶时的速度为正值， 向右行驶时的速度为负值； 定义所述电缆（41)卷入所述卷筒 （3) 的速度为正值， 从所述卷筒 （3) 卷出的速度为负值。
2、 如权利要求 1所述的梭车， 其特征在于， 当所述拉力检测装置（ 1 ) 检测到的拉力达到预定值并当所述卷筒（ 3 )进行收缆操作时， 所述控制装 置（ 2 )控制所述卷筒（ 3 )停止动作或者反转， 并控制所述梭车停止行驶； 当所述拉力检测装置（ 1 )检测到的拉力达到预定值并当所述卷筒（ 3 ) 进行放缆操作时， 所述控制装置（2)控制所述梭车停止行驶。
3、 如权利要求 2所述的梭车， 其特征在于， 所述拉力检测装置（1) 包括滚轮 ( 11 ), 所述滚轮（ 11 )连接有机械触发元件 （ 12 ), 所述拉力检 测装置 （1 )还包括弹性元件（13), 所述弹性元件 （13)—端固定， 另一 端与所述机械触发元件 （12)连接， 所述电缆（41)绕过所述滚轮 (11 ); 所述拉力检测装置（ 1 )还包括反馈元件 （ 14 );
当所述电缆（41 ) 受到的拉力逐渐增大并恰好等于所述预定值时， 所 述机械触发元件 （12) 向靠近所述反馈元件（14) 的方向运动， 并正好触 发所述反馈元件 （14), 所述反馈元件 （14)发出所述信号。
4、 如权利要求 3所述的梭车， 其特征在于， 所述反馈元件（14)为行 程开关。
5、 如权利要求 3所述的梭车， 其特征在于， 所述控制装置（2) 包括 液压控制装置（21)和电气控制装置； 所述反馈元件（14) 为截止阀， 所 述截止阀通过反馈油路（15)与所述液压控制装置 （21 )连接， 所述反馈 油路（ 15 )上设有压力传感器 （ 16 );
当所述机械触发元件 （12)触发所述截止阔时， 所述截止阔开启， 所 述反馈油路（ 15 )导通， 在所述反馈油路（ 15 )油液的作用下， 所述液压 控制装置 （21) 向所述卷筒 （3)发出停止动作或反转的指令；
所述压力传感器 （16)感受到反馈油路（15) 油液的压力后， 向所述 电气控制装置发出信号， 所述电气控制装置向所述梭车发出停止行驶的指 令。
6、 如权利要求 3至 5任一项所述的梭车， 其特征在于， 所述机械触发 元件（12)和所述反馈元件 （14) 均安装于所述梭车的导向轮支架（43) 上。
7、 如权利要求 3至 5任一项所述的梭车， 其特征在于， 所述弹性元件 (13)为弹簧。
8、如权利要求 7所述的梭车，其特征在于，所述弹簧连接有调节装置， 所述调节装置用于调节所述弹簧的预紧力。
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