CN213085246U - Power transmission device for electric clamp - Google Patents

Abstract

The utility model discloses an electric clamp power transmission device, which relates to the field of hoisting machinery manufacturing and comprises an aviation plug and a cable for connecting the aviation plug and a traveling crane electric room terminal box; the cable adopts a spiral spring cable, a lead-out section of the spiral spring cable is fixed on a trolley body, an extension section of the spiral spring cable is laid vertically in parallel with a steel wire rope of a main hook of the travelling crane, the spiral spring cable passes through the bottom of the rolling frame and is fixed on the bottom of the rolling frame, and the bottom of the rolling frame is fixed on a support angle steel connected with the main hook movable pulley; the end of the spiral spring cable penetrating through the coiling frame is connected with the aviation plug. The utility model discloses can solve current electronic clamp power transmission cable life time limit shorter, the potential safety hazard is big when overhauing the maintenance or changing the cable, consumes great manpower and materials and time cost, the problem that the maintenance cost is high, driving operating efficiency hangs down.

Description

Power transmission device for electric clamp

Technical Field

The utility model belongs to the technical field of the hoisting machinery makes technical field and specifically relates to a device that is used for giving the electronic clamp transmission power on the rolling coil of strip driving of handling.

Background

All use the electronic clamp to transport the coil of strip when cold-rolled strip mill comes to transport the operation with the driving a vehicle, the last electrical control box's of electronic clamp power comes from driving a vehicle electric room, through dragging the cable and arriving the travelling car top, extends to in the clamp control box or receives the aviation plug from the vertical direction in dolly top again. The traditional clamp power supply mode leads a power supply to a clamp control box from the upper part of a trolley through a common cable, and meanwhile, the cable winding and unwinding of the power supply cable in the clamp lifting process are realized through a cable winding drum fixed on the trolley, so that the cable is placed neatly in the clamp lifting action process. Due to the fact that the travelling crane clamp is high in operating rate and long in continuous operation time, the power cable is wound and unwound by the winding drum, the cable is frequently wound and bent along with the winding drum, mechanical fatigue of the cable is easily caused, a cable core line is broken or poor contact is caused to generate faults, and the operating efficiency of travelling crane is influenced; the cable life span is shorter, and when changing the cable in the reel, not only because clamp power cable is in high altitude construction and produces great potential safety hazard to the maintainer, and the cost is spent a large amount of manpower and materials and time cost when changing the cable moreover, and the maintenance cost is high, the driving operating efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an electronic clamp power transmission device is provided, it can be solved current electronic clamp power transmission cable life age shorter, and the potential safety hazard is big when overhauing and maintaining or changing the cable, consumes great manpower and materials and time cost, and the maintenance cost is high, the problem that driving work efficiency is low.

In order to solve the above problem, the technical scheme of the utility model is that: the power transmission device of the electric clamp comprises an aviation plug and a cable, wherein the cable is used for connecting the aviation plug and a travelling crane electric room; the cable is a spiral spring cable, a power supply is led out from a terminal box of the travelling crane electric room by the spiral spring cable, and the led-out section of the spiral spring cable is fixed on a trolley body by an upper pipe clamp; the coil spring cable extension section is arranged in the vertical laying of the steel wire rope of the driving main hook side by side, the coil spring cable passes through the grid net at the bottom of the rolling frame, and the coil spring cable is fixed at the bottom of the rolling frame by adopting a lower pipe clamp as a lower pivot for stretching the coil spring cable and passes through the rolling frame, the end of the coil spring cable is connected with the aviation plug, and a power supply is provided for the clamp control box through the aviation plug.

In the above technical solution, a more specific solution is: the coiling frame is made of steel materials and is in a cylindrical shape with a wide upper part and a narrow lower part; the coiling frame is fixed on the head edge of a lifting hook connected with a main hook pulley of the overhead traveling crane through a supporting angle steel and moves up and down along with the lifting hook.

Further: the bottom of the rolling frame is provided with a grid net.

Further: the spiral spring cable is a PVC spiral spring cable or a PUR spiral spring cable with the characteristics of flame retardance, oil resistance, acid and alkali resistance, low temperature resistance, ultraviolet resistance, wear resistance, hydrolysis resistance and the like.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. the utility model discloses a conventional cable before the spring coil cable replaces transmits the power supply of clamp, and when the clamp descends, stretch out the descending action of the synchronous clamp of characteristic through the elasticity of coil spring cable, the cable can not consequently take place unusual deformation, reaches the reliability and the life that have improved the cable operation simultaneously of stable power supply purpose.

2. The utility model discloses according to the gravity characteristic of cable itself, adopt the rolling frame that has the volume depth to replace cable drum before, change cable storage mode, in the action in-process that rises of clamp for store redundant spiral cable, the cable obtains better storage and protection under natural state, does not receive the interference of foreign object such as wire rope, reduces the fault rate of cable, promotes power transmission's reliability.

3. The utility model provides a cable because of frequently receive and release the problem that produces mechanical fatigue and cause broken string or contact failure, effectively promoted anchor clamps power transmission's reliability, promoted the operating efficiency of driving operation, effectively reduced maintenance personal's working strength simultaneously and to the maintenance work load of driving clamp, reduced driving equipment and maintained the safety risk, practiced thrift manpower, spare parts cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The reference numbers in the figures denote:

1. a trolley body; 2. a coil spring cable; 3. an upper pipe clamp; 4. A rolling frame; 5. Supporting angle steel; 6. a main hook pulley; 7. a lower pipe clamp; 8. an aviation plug; 9. a wire rope; 10. a grid net.

Detailed Description

The invention will be further described with reference to the following figures and examples:

the power transmission device of the power clamp of fig. 1 comprises an aviation plug 8 and a cable; one end of the cable is connected with the travelling crane electric room, and the other end of the cable is connected with the aviation plug 8; the cable is a spring cable, and the spring cable in the embodiment is a spiral spring cable 2; a power supply is led out from a terminal box on the trolley by the spiral spring cable 2, and a spring cable terminal is fixed on the trolley body 1 by a pipe clamp, namely an upper pipe clamp 3, and is used as an upper supporting point for stretching the spiral spring cable 2;

the other end of the spiral spring cable 2 is parallel to a steel wire rope 9 of a main hook of the travelling crane and is vertically laid, the spiral spring cable 2 penetrates through a grating net 10 at the bottom of the winding frame 4, the spiral spring cable 2 is fixed at the bottom of the winding frame 4 by adopting another pipe clamp, namely a lower pipe clamp 7 and serves as a lower stretching point of the spiral spring cable 2, the end of the spiral spring cable 2 penetrating through the winding frame 4 is led to an aviation plug 8, and a power supply is provided for the clamp control box through the aviation plug 8.

The coiling frame 4 is made of steel materials and is made into a cylinder shape with a wide upper part and a narrow lower part; the coiling frame 4 is fixed on the head edge of a lifting hook connected with a main hook pulley 6 of the overhead travelling crane through a supporting angle steel 5 and moves up and down along with the lifting hook; the bottom of the winding frame 4 adopts a grid net design mode, and the winding frame has the advantages that cables can directly penetrate through the frame bottom, and meanwhile, the lower pipe clamp 7 is convenient to weld and fix on the grid net 10 at the bottom of the winding frame; the coil spring cable 2 is passed through the grid mesh 10 at the bottom of the take-up frame 4 while being fixed by the lower clamp 7. The coiling frame 4 moves up and down along with the main hook pulley 6; the spiral spring cable 2 extends and contracts between the upper fulcrum and the lower fulcrum.

The spiral spring cable 2 can be a PVC spiral spring cable or a PUR spiral spring cable having the characteristics of flame retardance, oil resistance, acid and alkali resistance, low temperature resistance, ultraviolet resistance, wear resistance, hydrolysis resistance and the like.

When the main hook pulley 6 descends and puts down a heavy object, the spiral spring cable 2 is in a normal stretching state, and due to the stretching characteristic, the performance of the spiral spring cable 2 is not influenced, so that the mechanical fatigue hidden danger is eliminated, and the service life of the cable and the stability of a clamp power supply are ensured; when the main hook pulley 6 lifts the heavy object, the spiral spring cable 2 is in a natural state, the winding frame 4 follows the main hook to rise, and the spiral spring cable 2 hung vertically downwards under the action of gravity is collected into the winding frame 4, so that the spiral spring cable 2 in the natural state is effectively protected from being scraped by foreign objects to cause damage, and meanwhile, the spiral spring cable 2 is prevented from being twisted by the steel wire rope 9 to cause faults.

Claims (4)

1. An electric clamp power transmission device comprises an aviation plug (8), a cable for connecting the aviation plug (8) and a travelling crane electric room terminal box; the method is characterized in that: the cable adopts a spiral spring cable (2), and the leading-out section of the spiral spring cable (2) is fixed on the trolley body (1); the extension section of the spiral spring cable (2) is laid vertically in parallel to a steel wire rope (9) of a main hook of the traveling crane, the spiral spring cable (2) penetrates through the bottom of a winding frame (4) and is fixed on the bottom of the winding frame (4), and the bottom of the winding frame (4) is fixed on a support angle steel (5) connected with a main hook pulley (6); the end of the spiral spring cable (2) penetrating through the coiling frame (4) is connected with the aviation plug (8).

2. The electrical clamp power delivery apparatus of claim 1, wherein: the coiling frame (4) is made of steel materials and is in a cylindrical shape with a wide upper part and a narrow lower part.

3. An electrical clamp power delivery apparatus as claimed in claim 1 or claim 2, wherein: the bottom of the rolling frame (4) is provided with a grid net (10).

4. The electrical clamp power delivery apparatus of claim 3, wherein: the spiral spring cable (2) is a PVC spiral spring cable or a PUR spiral spring cable.

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