Automatic welding lifting cover

Abstract

An automatic welding lifting cover comprises a cover body and a lifting mechanism driving the cover body to ascend and descend, the lifting mechanism is arranged on a steel frame, and the lifting mechanism comprises a double-drum winch, a guide wheel set, an ascending limiting assembly and a descending limiting assembly; the double-drum winch comprises two symmetrically-arranged drums, a speed reducer connected with the two drums, a motor connected with the input end of the speed reducer and a brake mechanism for braking the motor, a steel wire rope wound on the drums is connected with the cover body through a guide wheel set, and the ascending limiting assembly comprises an ascending limiting switch which is fixed to the steel frame and located above the cover body; the downward limiting assembly comprises a limiting seat fixed on the steel frame, a spring arranged in the limiting seat, a pressing plate pressed at the upper end of the spring, a pull rod connected with the pressing plate and penetrating through the spring, and a downward limiting switch matched with the pressing plate; the pull rod is connected with the cover body through a rope; and a plurality of anti-falling steel ropes are arranged between the steel frame and the cover body. By optimizing the design of the lifting mechanism and safety protection measures, efficient and stable operation of the welding fume collecting equipment is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially automatic welding lifting cover. BACKGROUND

[0002] In the welding operation, welding fume causes serious influence on the health of operating personnel and environment. The traditional welding fume collection equipment usually adopts fixed cover body, cannot carry out flexible adjustment according to the size and position of welding workpiece, leads to low fume collection efficiency. In addition, the lifting mechanism of existing equipment adopts single point drive, has uneven stress, unstable operation problem, and lacks perfect safety protection measures, and there is certain security risk. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of automatic welding lifting cover, and the efficient stable operation of welding fume collection equipment is realized by optimizing lifting mechanism design and safety protection measure.

[0004] To solve the above technical problem, the technical scheme of the utility model is as follows: a kind of automatic welding lifting cover, including cover body and the lifting mechanism of driving cover body lifting, the lifting mechanism is arranged on steel frame, the lifting mechanism includes double cylinder winch, guide wheel group, uplink limiting assembly and downlink limiting assembly;The steel frame is welded by steel pipe, and the installation area is equipped on one side of steel frame top, and the installation area is equipped with reinforced welded pipe, the double cylinder winch is fixed in installation area, the other side of steel frame top is equipped with avoiding hole, the lower end of hose is connected with cover body, and the upper end of hose is connected with the collection main pipe above after passing through the avoiding hole of steel frame;The double cylinder winch includes two symmetrically arranged rollers, the speed reducer connected with the two rollers, the motor connected with the input end of speed reducer and the brake mechanism of brake motor, and the steel wire rope wound on the roller is connected with cover body through guide wheel group, and two steel wire ropes are respectively connected on the two sides of cover body top;The guide wheel group is arranged on steel frame, and it includes horizontal guide wheel and vertical guide wheel, and steel wire rope is turned 90 degrees after passing through vertical guide wheel;The uplink limiting assembly includes uplink limiting switch fixed on steel frame and located above cover body;The downlink limiting assembly includes limiting seat fixed on steel frame, spring arranged in limiting seat, pressing plate pressed on the upper end of spring, pull rod connected with pressing plate and passing through spring and downlink limiting switch matched with pressing plate, and the pull rod is connected with cover body through rope;A plurality of anti-falling steel ropes are arranged between steel frame and cover body.The utility model principle: when working, motor drives the synchronous rotation of the two rollers of double cylinder winch through speed reducer, and the steel wire rope wound on the roller drives cover body lifting through guide wheel group. The uplink limiting switch assembly and downlink limiting assembly limit the up and down stroke of cover body respectively, to ensure the safety of operation. Anti-falling steel rope is used as backup protection measure to prevent cover body from falling when steel wire rope breaks.

[0005] As an improvement, the steel frame is provided with a storage space to accommodate the cover.

[0006] As an improvement, three flexible hoses, which are corrugated pipes, are provided between the main collection pipe and the cover.

[0007] As an improvement, a brake wheel is provided at the connection between the motor and the reducer, and the braking mechanism acts on the brake wheel.

[0008] The beneficial effects of this utility model compared with the prior art are:

[0009] 1. The twin-drum synchronous drive design of the twin-drum winch ensures smooth lifting and even force distribution of the cover.

[0010] 2. Dual limit protection with both upward and downward limit components improves equipment operational safety;

[0011] 3. The redundant design of the anti-fall steel rope further enhances the safety and reliability of the equipment;

[0012] 4. The use of corrugated pipes improves the durability and sealing performance of the hose. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention.

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3 This is a schematic diagram of the layout of the limiting components.

[0016] Figure 4 This is a schematic diagram of the downlink limit switch component. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 , 2 As shown, an automatic welding lifting cover includes a cover body 4 and a lifting mechanism for driving the cover body 4 to rise and fall. The lifting mechanism is mounted on a steel frame 1 and includes a double-drum winch 2, a guide wheel assembly 3, an upward limit assembly 7, and a downward limit assembly 8.

[0019] like Figure 1 , 2As shown, the steel frame 1 is welded by steel pipes, one side of the top of the steel frame 1 is provided with a mounting area, a reinforced welded pipe is arranged in the mounting area, and the double-drum hoist 2 is fixed in the mounting area; the other side of the top of the steel frame 1 is provided with an avoiding hole, the lower end of the hose 5 is connected with the cover body 4, the upper end of the hose 5 is connected with the collecting main pipe 9 above after passing through the avoiding hole of the steel frame 1, and the steel frame 1 is provided with a receiving space for accommodating the cover body 4; three hoses 5 are arranged between the collecting main pipe 9 and the cover body 4, the hose 5 is a bellows pipe, the use of the bellows pipe improves the durability and sealing performance of the hose 5; the steel frame 1, the cover body 4 and the double-drum hoist 2 form an integral module, and the position thereof can be arranged according to the site layout.

[0020] As shown in the figure, Figures 1 to 3 The double-drum hoist 2 comprises two symmetrically arranged drums 23, a speed reducer 25 connected with the two drums 23, a motor 21 connected with the input end of the speed reducer 25 and a brake mechanism 22 for braking the motor 21. The steel wire rope 24 wound on the drum 23 is connected with the cover body 4 through the guide wheel set 3, and the two steel wire ropes 24 are respectively connected on the two sides of the top of the cover body 4. The double-drum hoist 2 is designed to be synchronously driven by the double drums 23, so as to ensure that the cover body 4 is stably lifted and uniformly stressed. The guide wheel set 3 is arranged on the steel frame 1 and comprises horizontal guide wheels and vertical guide wheels. The steel wire rope 24 is turned by 90 degrees after passing through the vertical guide wheels. The upward limiting assembly 7 comprises an upward limiting switch fixed on the steel frame 1 and located above the cover body 4. When the cover body 4 rises and touches the upward limiting switch, the double-drum hoist 2 stops winding. Figure 4 As shown in the figure, the downward limiting assembly 8 comprises a limiting seat 82 fixed on the steel frame 1, a spring 83 arranged in the limiting seat 82, a pressing plate 84 pressed on the upper end of the spring 83, a pull rod 85 connected with the pressing plate 84 and passing through the spring 83 and a downward limiting switch 81 matched with the pressing plate 84. The pull rod 85 is connected with the cover body 4 through a rope 86. When the cover body 4 is lowered to the lower limit position, the cover body 4 pulls the pull rod 85 through the rope 86. The pull rod 85 drives the pressing plate 84 to move downward and compresses the spring 83. When the pressing plate 84 touches the downward limiting switch 81, the double-drum hoist 2 stops unwinding.

[0021] The utility model principle: when working, the motor drives two drums of double-drum hoist 2 to rotate synchronously through speed reducer, and the steel wire rope 24 wound on the drum drives cover body 4 to lift and descend through guide wheel set 3. Upward limiting switch assembly and downward limiting assembly 8 limit the up and down stroke of cover body 4 respectively, and ensure the safety of operation. The anti-falling steel rope is used as a backup protection measure to prevent the cover body 4 from falling when the steel wire rope 24 breaks.

Claims

1. An automatic welding lift hood comprising a hood body and a lifting mechanism for driving the hood body to lift, characterized in that: The lifting mechanism is arranged on the steel frame, and comprises a double-cylinder winch, a guide wheel set, an up-limiting assembly and a down-limiting assembly; the steel frame is welded by steel pipes, one side of the top of the steel frame is provided with a mounting area, a reinforced welded pipe is arranged in the mounting area, the double-cylinder winch is fixed in the mounting area, the other side of the top of the steel frame is provided with an avoiding hole, the lower end of a hose is connected with the cover body, and the upper end of the hose is connected with a collecting main pipe above the steel frame through the avoiding hole; the double-cylinder winch comprises two symmetrically arranged rollers, a speed reducer connected with the two rollers, a motor connected with the input end of the speed reducer and a brake mechanism of the motor, a steel wire rope wound on the rollers is connected with the cover body through the guide wheel set, and the two steel wire ropes are respectively connected on the two sides of the top of the cover body; the guide wheel set is arranged on the steel frame and comprises horizontal guide wheels and vertical guide wheels, the steel wire rope is turned by 90 degrees after passing through the vertical guide wheels; the up-limiting assembly comprises an up-limiting switch fixed on the steel frame and located above the cover body; the down-limiting assembly comprises a limiting seat fixed on the steel frame, a spring arranged in the limiting seat, a pressing plate pressed on the upper end of the spring, a pull rod connected with the pressing plate and passing through the spring and a down-limiting switch matched with the pressing plate, and the pull rod is connected with the cover body through a rope; a plurality of anti-falling steel ropes are arranged between the steel frame and the cover body.

2. An automatic welding lift shield according to claim 1, wherein: The steel frame is provided with a receiving space for accommodating the cover body.

3. An automatic welding lift shield as defined in claim 1 wherein: Three hoses are arranged between the collecting main pipe and the cover body, and the hoses are corrugated pipes.

4. An automatic welding lift shield as defined in claim 1 wherein: A brake wheel is arranged at the connection between the motor and the speed reducer, and the brake mechanism acts on the brake wheel.

Images