Engine-driven grinding machine with weight protection device
A protection device and winch mill technology, applied in the direction of hoisting device, spring mechanism, etc., can solve problems such as safety accidents and gearbox damage, and achieve the effect of ensuring safe operation, convenient debugging, and safe and reliable operation.
Active Publication Date: 2014-05-07
STATE GRID CORP OF CHINA +2
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Problems solved by technology
Since the motorized winch has different speeds, and the load capacity is different at the speed of different gears, in the existing motorized winch, there is no similar safety protection device, and different speed gears Load limit protection, so in the actual use process, there are often cases where the load weight is unknown, and the gear that does not match the load is used for operation, resulting in damage to the gearbox and even safety accidents
Method used
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Embodiment Construction
[0027] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0028] Such as figure 1 and 2 As shown, the engine device 5, the gearbox device 6 and the reel device 4 are installed on the motorized winch body, and the lifting weight detection device, the position signal acquisition device and the control system are also arranged on the winch body. The lifting capacity detection device includes a support 2 connected to the main body of the winch, and a pulley block 1 is arranged on the support 2. Two of the three pulleys are fixed on the crossbeam of the installation support 2 through a pin shaft, and the other pulley is passed through a pin shaft. Connected with the lifting capacity limiter 3, the three pulleys are arranged in a triangle, so that the steel wire rope 7 passing through the three pulleys forms an angle of 120 degrees, so that the resultant force of the steel wire rope passes throu...
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The invention relates to an engine-driven grinding machine with a weight protection device. In existing engine-driven grinding, a safety protection device does not exist, so that a gearbox is damaged easily, and even safety accidents are caused. The engine-driven grinding machine is characterized in that a lifting weight detection device, a position signal obtaining device and a control system are also arranged on a grinding machine body, the lifting weight detection device obtains a weight signal of a lifting weight limiter through the stress of the lifting weigh limiter, the position signal obtaining device is used for obtaining gear forward-reverse rotation position signals and speed gear signals, the control system can automatically cut off an oil supply way of an engine during overloading by judging the lifting weight limiter and the position signals, and the engine is controlled to be switched off. The engine-driven grinding machine is convenient to install, brings convenience to on-site adjustment, and ensures safe operation of engine-driven grinding.
Description
technical field [0001] The invention belongs to the field of lifting equipment for electric construction machinery, and in particular relates to a motorized winch with a weight protection device. Background technique [0002] With the development of the power system, more and more power transmission and transformation lines are erected and transformed. In the construction and maintenance of the line, it is usually necessary to use special construction equipment to achieve traction, line tightening, vertical poles, vertical towers and equipment hoisting etc. Among all special construction equipment, due to the advantages of light weight, convenient handling, simple operation, and no need for external power supply, motorized winches are widely used in electric power construction. [0003] As we all know, the most widely used motorized winch is a purely manually operated device. It is powered by a gasoline (or diesel) engine, and its manual clutch is manually operated to realiz...
Claims
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IPC IPC(8): B66D1/54B66D1/28
Inventor 吴秀民方孔承王汉炜李帆金鹤翔
Owner STATE GRID CORP OF CHINA