CN109060225A - A kind of method and device measuring braking torque for mine hoist base - Google Patents

A kind of method and device measuring braking torque for mine hoist base Download PDF

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Publication number
CN109060225A
CN109060225A CN201811025247.3A CN201811025247A CN109060225A CN 109060225 A CN109060225 A CN 109060225A CN 201811025247 A CN201811025247 A CN 201811025247A CN 109060225 A CN109060225 A CN 109060225A
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China
Prior art keywords
wire rope
dynamometer
drum
hoist
wirerope
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CN201811025247.3A
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Chinese (zh)
Inventor
徐桂云
翟玉芳
徐文涛
张晓光
刘珍
宋狄
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Xuzhou Daheng Measurement & Control Technology Co Ltd
China University of Mining and Technology Beijing CUMTB
Zaozhuang University
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China University of Mining and Technology Beijing CUMTB
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Application filed by China University of Mining and Technology Beijing CUMTB filed Critical China University of Mining and Technology Beijing CUMTB
Priority to CN201811025247.3A priority Critical patent/CN109060225A/en
Publication of CN109060225A publication Critical patent/CN109060225A/en
Priority to PCT/CN2019/100513 priority patent/WO2020048301A1/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

The invention discloses a kind of method and device for measuring braking torque for mine hoist base, device includes: wirerope, device for measuring force (dynamometer, computer acquisition system composition), chain block etc..Operating process are as follows: choose the wirerope that length is 22 times of diameter of cylinder, then the both ends of doubling, rope are fixed in the bolt hole of roller, and wirerope is wound to 3 circles on elevator drum, the fold point of wirerope is connected with the dynamometer of measuring device, and dynamometer is connected with chain block；In the case where roller is in braking completely, chain block is pulled to pull chain, pulls elevator drum to rotate moment in wirerope, meter calculates braking moment.It is of the invention that be mainly characterized by device simple, it does not need to destroy roller original structure, utilize the wirerope and roller feature tangent always wound on elevator drum, the braking moment that elevator drum is measured by principle of moment balance can be widely applied to the measurement of all kinds of mine hoist drum braking torques.

Description

A kind of method and device measuring braking torque for mine hoist base
Technical field
The present invention relates to a kind of method and devices for measuring braking torque for mine hoist base, are particularly suitable for mine hoist braking The measurement method and device of device braking moment are also applied for the measurement of the brake torque of other disc locks.
Background technique
Mine hoist is means of transport indispensable in coal mine, transport coal, ancillary equipment, personnel etc., reliable journey The safety that degree directly affects personnel and normally produces, brake are to maintain one of important protective device of mine hoist safety." coal Charcoal safety code " braking moment that generates of predetermined brake device is greater than to be equal to and promotes turning moment caused by maximum static lotus 3 times and periodically to carry out technology measurement.Probably due to hydraulic station pressure supply is inadequate, disc spring piece uses mistake, brake clearance adjusts mistake, Brake shoe and brake disc damage, oil liquid dust pollution brake disc etc. cause brake torque insufficient and lead to the generation of safety accident, Therefore the braking moment of periodic measurement brake is the important leverage of safety in production.
Traditional measurement method is the wirerope pulled on roller, is calculated and is braked as the arm of force using elevator drum disc radius The braking moment of the method measurement brake of torque, method is fairly simple, but it is difficult to ensure that power is vertical with the arm of force, uses work Wirerope is very inconvenient, therefore causes measurement inaccurate, and error is larger, hardly possible operation etc..200710025204.0 disclosure of patent No. ZL Braking moment involute shaped measurement mechanism of large-sized brake measures braking moment, and this method generated using jack Driving force, power act on the pressure part being processed into using roller outer disc as the part involute of basic circle, pass through hydraulic time of measurement Road pressure measures braking moment.But it since measurement braking moment method needs the auxiliary devices such as jack, pressure part, and gradually opens The Accurate Shaping in the involute face of line pressure part is very difficult, while needing to hold accordingly in the punching installation of elevator drum side Casting die destroys the inherent structure and service performance of elevator drum, therefore measurement accuracy is low, influences that elevator drum is subsequent to be made With.Patent No. ZL 201010555300.8 discloses a kind of installation of contactless involute brake force moment measuring device Method improves it, but its basic principle does not change, and there are the involute face machining accuracy of pressure part is poor, also to have The disadvantages of hydraulic station carries out feed flow, and in-site installation is troublesome；This method from survey braking moment go to survey pressure part pressure to survey it is very heavy Pressure on top surface have passed through repeatedly conversion and cause measurement data inaccurate to measurement oil liquid pressure.Patent No. ZL 201410019811.6 disclosing a kind of method and device for measuring braking torque for mine hoist base, this method is provided with guide groove, benefit With guide groove come the axial movement of fixed rope, starting point is relatively good, but to positioning sliding block, guide runner, locating piece and other Auxiliary member machining accuracy has high requirements, and this method can try to be clever only to end up with a blunder instead, causes measurement error very big.Therefore, it is badly in need of one Simpler more accurate method is planted to measure braking torque for mine hoist base.
Summary of the invention
Technical problem: the purpose of the present invention is overcoming shortcoming in the prior art, it is simple to provide a kind of structure, operation It is more convenient, the method and device of the high measurement braking torque for mine hoist base of measuring accuracy.
Technical solution: a kind of device of measurement braking torque for mine hoist base of the invention, including elevator drum, wirerope, d Length is one section of wirerope pair of 22 times of diameter of cylinder by shape shackle, dynamometer, chain block, steel cable clamp and computer Folding, two rope ends are penetrated from two bolts hole of position circumferential in the middle part of the elevator drum respectively, and two pitchs of bolts are two The rope wire rope penetrated is buckled and is knotted, the wirerope after doubling is wound multi-turn on roller by a bolt hole hole location, It is connected with the shackle of d shape with one end of dynamometer at the fold point of wirerope, the other end d shape shackle of dynamometer and pulls calabash The hook of reed is connected, and chain block is hung on overhead traveling crane, and dynamometer connects computer through lead.
The diameter of the wirerope is slightly less than the diameter of bolt hole on elevator drum.
The circle number of the wirerope of the winding hoisting machine cylinder multi-turn is 3 circles.
Using a kind of method of measurement braking torque for mine hoist base of above-mentioned apparatus, include the following steps:
A. the bolt in the middle part of roller in the bolt hole of circumferential any position two is laid down, is spaced two spiral shells between two bolts hole Keyhole hole location penetrates at the both ends of the rope end of wirerope from two bolts hole for laying down bolt respectively；
B. by two cable wire ends for penetrating bolt hole, doubling is bent and is fixed with two steel cable clamps and to be formed respectively Wirerope knot, and wirerope is wound to 3 circles on elevator drum；
C. it is connected with the shackle of d shape with one end of dynamometer at the fold point of wirerope, the other end of dynamometer is unloaded with d shape Button is connected with the hook of chain block, and chain block is hung on overhead traveling crane；
D. in the case where elevator is in braking completely, slowly pull chain block pulls chain, steel wire tensioning, In the moment of elevator drum rotation, braking force signal is transferred to computer, passes through calculating by the dynamometer being connected with wirerope Machine records the size of wirerope upper pulling force, calculates the braking moment that damper brake applies in roller brake disc.
The hanging position of the chain block, the specific rope length of wirerope, the direction of rope winding, selection bolt hole Hole location and dynamometry place determine according to field condition.
The utility model has the advantages that the present invention measures braking moment according to principles such as rational mechanics principle of moment balance, kinematic principles. In the case where elevator drum brake disc is braked completely, drum movement situation is observed when power constantly increases, and is being rolled according to fortune principle The moment of cylinder rotation, drag torque are equal to braking moment, since measurement has error, can measure multiple value, utilize the side of mathematics Method carries out analysis and obtains more acurrate braking moment.Compared with prior art, the present invention have do not need to add other ancillary equipments, The inherent structure and service performance for not destroying elevator drum utilize the wirerope wound on elevator drum and roller phase always The characteristics of cutting measures the braking moment of elevator drum by principle of moment balance, simple and fast can implement braking moment Measurement, structure is simple, and easy to operate, measurement data is accurate, strong applicability, can be widely applied to each including mine hoist The measurement of the brake torque of class disc lock.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of measurement braking torque for mine hoist base device of the invention.
Fig. 2 is wirerope knot knot tying fashion schematic diagram.
In figure: 1- roller, 2- wirerope knot, 3- bolt hole, 4- bolt, 5- wirerope fake, 6- wirerope, 7- are calculated Machine, 8-d shape shackle, 9- dynamometer, 10- hook, 11- pull chain, 12- chain block, 13- steel cable clamp.
Specific embodiment
The invention will be further described for embodiment in reference to the accompanying drawing:
As shown in Fig. 1, the device of a kind of measurement braking torque for mine hoist base of the invention, mainly by elevator drum 1, steel Cord 6, d shape shackle 8, dynamometer 9, chain block 12, steel cable clamp 13 and computer 7 are constituted, and lay down middle part ring on roller 1 Two bolts 4 on position, the spacing of two bolts are two bolt hole hole locations；Choose the steel wire that length is 22 times of diameter of cylinder Rope, then doubling penetrate two rope ends from two bolts hole 3 of the elevator drum 1 respectively, by two rope ends penetrated point Wirerope knot 2 is not formed with two fixations of steel cable clamp 13；Wirerope after doubling is wound to 3 circles on roller and forms steel Cord fake 5；It is connected with d shape shackle 8 with one end of dynamometer 9 at the fold point of wirerope 6, the other end d of dynamometer 9 Shape shackle 8 is connected with the hook 10 of chain block 12, and chain block 12 is hung on overhead traveling crane, and dynamometer 9 connects computer through lead 7.The diameter of the wirerope 6 is slightly less than 3 diameter of bolt hole on elevator drum.
As shown in Fig. 2, the knot tying fashion of knot is two 13 clampings of steel cable clamp that wirerope 6 gives a discount.
A kind of method of measurement braking torque for mine hoist base of the invention, the specific steps are as follows:
A. the bolt 4 in the circumferential bolt hole 3 of any position two in 1 middle part of roller is laid down, is spaced two between two bolts hole 3 A 3 hole location of bolt hole penetrates at the both ends of the rope end of wirerope 6 from two bolts hole for laying down bolt respectively；
B. two 6 rope ends of wirerope for penetrating bolt hole difference doubling is bent and uses the fixed shape of two steel cable clamps 13 At wirerope knot 2, and wirerope 6 is wound to 3 circles on elevator drum 1；
C. it is connected with d shape shackle 8 with one end of dynamometer 9 at the fold point of wirerope 6, the other end d of dynamometer Shape shackle is connected with the hook 10 of chain block 12, and chain block is hung on overhead traveling crane；The hanging position of the chain block 12, Rope length, the direction of rope winding, the bolt hole hole location of selection and dynamometry place after 6 doubling of wirerope is true according to field condition It is fixed.
D. in the case where elevator is in braking completely, slowly pull chain block pulls chain 11, and wirerope 6 is opened Tightly, braking force signal is transferred to computer 7 by the moment rotated in elevator drum 1, the dynamometer 9 being connected with wirerope 6, is led to The size that computer 7 records wirerope upper pulling force is crossed, the braking moment that damper brake applies in roller brake disc is calculated.

Claims (5)

1.一种测量提升机制动力矩的装置，包括提升机滚筒（1）、钢丝绳（6）、d形卸扣（8）、测力计（9）、手拉葫芦（12）、钢丝绳卡扣（13）和计算机（7），其特征在于：将长度为22倍滚筒直径的一段钢丝绳（6）对折，两绳头分别从所述提升机滚筒（1）中部环向位置的两个螺栓孔（3）中穿入，两个螺栓间距为两个螺栓孔孔位，将穿入的钢丝绳用钢丝绳卡扣（13）打结，将对折后的钢丝绳（6）在滚筒（1）上缠绕多圈，在钢丝绳（6）的对折点处用d形卸扣（8）与测力计（9）的一端相连，测力计（9）的另一端用d形卸扣（8）与手拉葫芦（12）的钩子（10）相连，手拉葫芦（12）挂在天车上，测力计（9）经引线连接计算机（7）。1. A device for measuring the torque of a hoist, including a hoist drum (1), a wire rope (6), a D-shaped shackle (8), a dynamometer (9), a chain hoist (12), and a wire rope buckle (13) and computer (7), which are characterized in that: a section of steel wire rope (6) whose length is 22 times the diameter of the drum is folded in half, and the two rope heads are respectively connected from two bolt holes in the middle of the hoist drum (1) to the circumferential position (3), the distance between the two bolts is two bolt holes, tie the threaded wire rope with the wire rope buckle (13), and wrap the folded steel wire rope (6) on the drum (1) for more Use a d-shaped shackle (8) to connect with one end of the dynamometer (9) at the half-fold point of the wire rope (6), and connect the other end of the dynamometer (9) with a d-shaped shackle (8) to pull The hooks (10) of the gourd (12) are connected, the chain block (12) is hung on the crane, and the dynamometer (9) is connected to the computer (7) through lead wires. 2.根据权利要求1的一种测量提升机制动力矩的装置，其特征在于：所述的钢丝绳（6）的直径略小于提升机滚筒上的螺栓孔（3）直径。2. A device for measuring hoist torque according to claim 1, characterized in that: the diameter of the steel wire rope (6) is slightly smaller than the diameter of the bolt hole (3) on the hoist drum. 3.根据权利要求1的一种测量提升机制动力矩的装置，其特征在于：所述缠绕提升机滚筒（1）多圈的钢丝绳（6）的圈数为3圈。3. A device for measuring the hoisting torque according to claim 1, characterized in that: the number of turns of the steel wire rope (6) that is wound multiple times around the hoist drum (1) is 3. 4.使用权利要求1所述装置的一种测量提升机制动力矩的方法，其特征在于，包括如下步骤：4. use a kind of method for measuring hoist torque of device described in claim 1, it is characterized in that, comprises the steps: a.卸掉滚筒（1）中部环向任意位置两个螺栓孔（3）内的螺栓（4），两个螺栓孔（3）之间间隔两个螺栓孔（3）孔位，将钢丝绳（6）的绳头的两端分别从卸掉螺栓的两个螺栓孔穿入；a. Remove the bolts (4) in the two bolt holes (3) at any position in the middle of the drum (1). There are two bolt holes (3) between the two bolt holes (3). 6) The two ends of the rope head are respectively penetrated through the two bolt holes where the bolts are removed; b.将穿入螺栓孔的两个钢丝绳（6）绳头分别对折弯曲并用两个钢丝绳卡扣（13）固定形成钢丝绳绳结（2），并将钢丝绳（6）在提升机滚筒（1）上缠绕3圈；b. Fold the ends of the two wire ropes (6) that pass through the bolt holes in half and fix them with two wire rope buckles (13) to form a wire rope knot (2), and put the wire rope (6) on the hoist drum (1) Wrap up 3 times; c.在钢丝绳（6）的对折点处用d形卸扣（8）与测力计（9）的一端相连，测力计的另一端用d形卸扣与手拉葫芦（12）的钩子（10）相连，手拉葫芦挂在天车上；c. Connect one end of the dynamometer (9) with a d-shaped shackle (8) at the half-fold point of the wire rope (6), and connect the other end of the dynamometer with a d-shaped shackle and the hook of the chain hoist (12) (10) Connected, the chain hoist is hung on the crane; d.在提升机处于完全制动的情况下，缓缓拉动手拉葫芦的手拉链条（11），钢丝绳（6）张紧，在提升机滚筒（1）转动的瞬间，与钢丝绳（6）相连的测力计（9）将制动力信号传输给计算机（7），通过计算机（7）记录钢丝绳上拉力的大小，计算出制动闸在滚筒闸盘施加的制动力矩。d. When the hoist is fully braked, slowly pull the hand chain (11) of the chain hoist, and the wire rope (6) is tensioned. The connected dynamometer (9) transmits the braking force signal to the computer (7), and the computer (7) records the magnitude of the tension on the wire rope, and calculates the braking torque applied by the brake on the drum brake disc. 5.根据权利要求5的一种测量提升机制动力矩的装置，其特征在于：所述的手拉葫芦（12）的悬挂位置，钢丝绳（6）的具体绳长、绳子缠绕的方向、选择的螺栓孔孔位以及测力地点根据现场情况确定。5. A device for measuring hoisting mechanism torque according to claim 5, characterized in that: the suspension position of the chain block (12), the specific rope length of the steel wire rope (6), the winding direction of the rope, the selected The location of the bolt holes and the location of the force measurement are determined according to the site conditions.
CN201811025247.3A 2018-09-04 2018-09-04 A kind of method and device measuring braking torque for mine hoist base Pending CN109060225A (en)

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CN201811025247.3A CN109060225A (en) 2018-09-04 2018-09-04 A kind of method and device measuring braking torque for mine hoist base
PCT/CN2019/100513 WO2020048301A1 (en) 2018-09-04 2019-08-14 Method and device for measuring braking torque of hoist

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WO2020048301A1 (en) * 2018-09-04 2020-03-12 枣庄学院 Method and device for measuring braking torque of hoist

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