A single-control multi-point synchronous pressure entrainment device

Abstract

The invention discloses an independent-control multipoint synchronous pressurizing belt clamping device. According to the independent-control multipoint synchronous pressurizing belt clamping device,in the normal operating and maintaining working condition processes of a belt conveyor, by designing vertically-symmetrical clamping body mechanisms, synchronous clamping of an upper rubber belt and alower rubber belt is achieved; by designing lifting cylinders on the two sides and belt clamping bases, different working condition positions of the belt clamping bases are controlled, free switchingbetween the normal operating working condition and the maintaining working condition of the belt clamping device is achieved, the adaptability is higher, and the manufacturing cost and the workload are reduced; a hydraulically-controlled one-way valve is connected with plunger cylinders and piston cylinders independently, and control over and pressure maintaining of each plunger cylinder and eachpiston cylinder in the working process are achieved; and hinged shafts are in fit connection with the hydraulic cylinder, additional direction pressure generated due to rubber belt deformation clamping is automatically adjusted, the service life of the clamping device is prolonged, and moreover, the clamped rubber belts are more stable, safer and more reliable.

Description

technical field [0001] The invention relates to an entrainment device for maintenance and repair of a belt conveyor, in particular to an independently controlled multi-point synchronously pressurized tape clamping device used in the process of maintenance and repair of a belt conveyor. Background technique [0002] In industries such as coal and non-coal mines, about 30 billion tons of loose materials are transported each year, such as coal, iron and non-ferrous metal ores, etc., through a series system of multiple belt conveyors, many of which are long-distance , High-speed, heavy-duty inclined transport. [0003] While carrying all the materials, the tape with a certain tension also interacts with transmission parts such as rollers and idlers, resulting in periodic alternating stress and strain, unreasonable start-stop control and sudden power failure or emergency braking. During the process, under the action of impact load and gravitational potential energy, the tape is ...

AI Technical Summary

Problems solved by technology

[0004] Whether it is the regular maintenance of the belt conveyor or the regular replacement of the belt, the belt needs to be fixed by the entrainment device. There is no special fixing device. The most common way to fix the belt is to manually fix the belt with multiple boards. A winch is required to assist fixing. First, the regular maintenance and belt replacement of the belt conveyor requires the upper and lower belts to be clamped at the same time, and multiple boards are used to manually fix the belts. This method not only cannot guarantee the upper and lower belts. The tapes are clamped at the same time, which consumes a lot of unnecessary manpower and time; secondly, the time lost for each tape fixing can create high economic benefits under normal working conditions, and at the same time, the manual board method requires a winch Working together with manual work, too many external factors make it difficult to guarantee its safety; finally, it is difficult to ensure that the clamping force of the tape is evenly distributed during the entrainment process, and it is easy to appear running belt phenomenon due to uneven force. lead to nasty accidents

[0005] Publication number CN202642662U is a utility model patent for "tape clamping device". This device uses fasteners to clamp and loosen the tape. The operation is complicated, the workload is large, and time-consuming; there is also a publication number CN202670586U The utility model patent of "entrainment device for belt conveyor", the patented mechanism is composed of multiple rollers, including many auxiliary components, with complex structure, large volume, high operation requirements and high application cost

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