Small-winch overwinding safety device
A technology of protection device and small winch, which is applied in the direction of hoisting device and spring mechanism, etc., can solve the problems of lack of concentration, threat to the personal safety of the winch driver, and difficulty in safe transportation and management of small winches, achieving low cost, high benefit and Improvement of safety effect, obvious effect of benefit and safety effect
Inactive Publication Date: 2015-03-25
BINHU COAL MINE ZAOZHUANG MINING GRP
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Problems solved by technology
[0002] The overwinding of the winch caused by unsafe behavior of people (violation of regulations) and unsafe factors of objects (mechanical failure) is a difficult problem in the safe transportation management of small winches
Due to the lack of concentration of the winch driver and misoperation, the winch breaks the rope and draws people, and damage to the winch and mine trucks occurs from time to time, which not only causes economic losses, but also seriously threatens the personal safety of the winch driver
Method used
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[0011] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0012] The present invention as figure 1 as shown,
[0013] A small winch overwind protection device, comprising a winch control combination switch 7, a winch 6 with a front frame sheave 5, a mine car 2 and a wire rope 3, characterized in that it also includes a switch terminal connected in series with the winch control combination switch 7 The normally closed contact 4 of the winch, the base 9 of the normally closed contact 4 is added on the front frame sheave 5 of the winch, the base 9 and the front frame sheave 5 form an angle of 45 degrees, and the normally closed contact 4 is located at On the release and recovery path of steel wire rope 3.
[0014] According to the small winch overwind protection device, the feature is that the winch control combined switch 7 is of QBZM type.
[0015] We connect the QBZM switch remote control stop terminal i...
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The invention relates to a small-winch overwinding safety device which is used for the field of coal mining conveying, and belongs to a control system. According to the technical scheme, the small-winch overwinding safety device comprises a winch control combined switch, a winch with a front frame rope wheel, a tramcar and a steel wire rope, and further comprises a normally-closed contact connected with a switch terminal of the winch control combined switch in series, a base of the normally-closed contact is additionally arranged on the front frame rope wheel of the winch, a 45-degree included angle is formed between the base and the front frame rope wheel, and the normally-closed contact is located on an unwinding and winding path of the steel wire rope. The small-winch overwinding safety device has the advantages that the stop terminal is remotely controlled by a QBZM switch to be connected with the normally-closed contact in series to form a winch stop control loop, when a winch driver breaks rules to nap and carries out wrong operation, the winding rope of the winch is disordered and the steel wire rope is twisted into a brake strap, the tramcar is in contact with the normally-closed contact, and the winch switch will be immediately powered off to stop running. By means of the small-winch overwinding safety device, the necessary devices are simply and additionally installed on an original device, the safety protection aim is achieved, and cost is low.
Description
technical field [0001] This patent relates to an overwind protection device for a small winch, which is used in the field of coal mining and transportation, and belongs to a control system. Background technique [0002] The overwinding of the winch caused by unsafe behavior of people (violation of regulations) and unsafe factors of objects (mechanical failure) is a difficult problem in the safe transportation management of small winches. Because the winch driver does not concentrate and misuses, the winch breaks the rope and draws people, and damage to the winch and the mine car occurs from time to time, which not only causes economic losses, but also seriously threatens the personal safety of the winch driver. Contents of the invention [0003] The purpose of the present invention is to provide an overwinding protection device for a small winch, so as to realize the overwinding protection problem of the winch during operation. [0004] To achieve the above object, the te...
Claims
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Login to View More IPC IPC(8): B66D1/54
CPCB66D1/54
Inventor 马士亮郭新民薛玉梁郭士启冯福东竺晓兵
Owner BINHU COAL MINE ZAOZHUANG MINING GRP