Electromagnetic braking translation-type rolling plate clamp

Abstract

The invention discloses an electromagnetic braking translation-type rolling plate clamp comprising a hoisting device, a driving device, a braking device, a supporting cross beam, a left clamp arm, a right clamp arm, a clamp arm protection device and an electrical system, wherein the driving device comprises a three-in-one speed reducer, a torque limiter, a small spiral bevel gear, a big spiral bevel gear, a rack, a gear, an aligning roller bearing and a gear shaft; and the electromagnetic braking device comprises an electromagnet, a ratchet wheel and a pawl. When in brake, the other end of the pawl is supported on the root of the ratchet wheel; the middle of the pawl is hinged on the rear side wall of the supporting cross beam; a detection device comprises a position switch arranged on the cross beam and a centering switch and an edge detection switch which are arranged on the clamp arms. In the invention, the driving device has stable running; the electromagnetic braking is accurate and reliable; and a sliding plate is well protected and can be easily and accurately reset. The clamp has the advantages of compact structure, light dead weight, high safety factor, high strength, comprehensive protection measure and high working efficiency, can realize automatic and semi-automatic running and relieve the labor intensity of workers.

Description

technical field [0001] The invention belongs to the field of object hoisting and loading and unloading equipment, and relates to an electric clamp used for professional loading and unloading of steel and aluminum coils in the metallurgical industry. Background technique [0002] Electric clamps currently used for professional loading and unloading of steel and aluminum coils in the metallurgical industry are generally three-screw-driven plate-coiling clamps and rack-and-pinion longitudinally driven clamps. The coiling clamp driven by the three-screw form has the following disadvantages: the transmission screw is easily bent and deformed after being stressed, resulting in the inability to open the clamp; The situation of the motor occurs; when the clamp arm clamps the steel coil or aluminum coil, the protection measures on the clamp arm are not in place, and the suspended object is easy to be damaged. The clamp in the form of longitudinal transmission of rack and pinion has ...

AI Technical Summary

Problems solved by technology

The coiling clamp driven by the three-screw form has the following disadvantages: the transmission screw is easily bent and deformed after being stressed, resulting in the inability to open the clamp; The situation of the motor occurs; when the clamp arm clamps the steel coil or aluminum coil, the protection measures on the clamp arm are not in place, which is easy to damage the suspended object

The clamp in the form of longitudinal transmission of rack and pinion has the following disadvantages: the supporting beam is box-shaped connection, there are many processed parts, and the cost is high; due to the large number of processed parts, there are accumulated errors and it is not easy to maintain; there are errors in the processing and assembly of the supporting beam processed parts, Easy to deform; the reducer is assembled in the middle of the beam, and the replacement of the motor is inconvenient

The arm protection device of the two types of clamps mentioned above cannot move simultaneously with the suspended object, resulting in damage to the suspended object, which is also inaccurate in reset and inconvenient for maintenance.

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