CN114643522B - A self-cleaning bottom support mechanism - Google Patents

Abstract

An automatic cleaning bottom support mechanism, which relates to a supporting tool for the pipe-making process of reinforced concrete pipes. Cross, the hollow shaft is connected to the cross; the cross is formed by connecting four supporting arms, and an electric grinding mechanism is arranged on each supporting arm; The outer end of each support arm is connected with a driven sprocket, the driven sprocket is connected with the four-chain sprocket through a chain, and the electric grinding mechanism is connected with the chain. The lifting mechanism lowers the electric grinding mechanism to the working height, and the hollow shaft works to drive the four-link sprocket to rotate to make the chain move, that is, the electric grinding mechanism moves to match the bottom brackets of different specifications. The hollow shaft drives the cross to rotate, and the four sets of electric grinding mechanisms work to clean the four working surfaces of the bottom bracket respectively. The production efficiency is high and the product quality is good.

Description

A self-cleaning bottom support mechanism

technical field

The invention relates to a matching tool for the pipe-making process of reinforced concrete pipes, in particular to a mechanism for automatically cleaning the four working faces of the bottom support.

Background technique

Reinforced concrete pipes are formed by a radial extrusion pipe machine, which generally includes a mold, a bottom support, etc. After the reinforced concrete is formed, the mold is demoulded, and the bottom support is located at the lower end of the reinforced concrete pipe. The reinforced concrete pipe is separated, and there is residue on the separated bottom bracket, which needs to be cleaned. At present, there is no automatic production line in the radial extrusion pipe making process, so in the production process, the bottom bracket is lifted by forklift or driving, and the cleaning of the bottom bracket is done manually. The production efficiency is very low, and the labor intensity of the workers is high. The work is time-consuming, and the bottom bracket cannot be cleaned cleanly, which will affect the quality of the product when making the next tube.

Contents of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide a mechanism for automatically cleaning the bottom support, which cleans the bottom support cleanly and has high efficiency.

The purpose of the present invention is achieved in this way: an automatic cleaning bottom support mechanism, including a door frame, a lifting platform is arranged in the door frame, and the lifting platform is connected with the upper end of the door frame through a lifting mechanism; a cross is set under the lifting platform , the top of the intersection of the cross is connected to the hollow shaft, the hollow shaft is connected to the rotating motor through the slewing bearing, and the rotating motor is connected to the lifting platform; the cross is formed by connecting four supporting arms, and an electric motor is installed on each supporting arm Grinding mechanism; the electric grinding mechanism includes a pulley seat, a support, a motor and a wire wheel, the pulley seat is connected to a pulley, and a chute is set on the support arm, and the pulley slides in the chute of the support arm; the support is connected Below the pulley seat, the motor is connected to the support, and the output shaft of the motor is connected to the wire wheel; a hollow shaft is arranged in the hollow shaft, and the lower end of the hollow shaft stretches out from the hollow shaft and the cross to connect with the four-chain sprocket; The outer end of each support arm is connected with a driven sprocket, the driven sprocket is connected with the four-chain sprocket through a chain, and the pulley seat is connected with the chain.

The invention is controlled by the PLC program. The bottom support of the transfer handle is transferred to the cleaning station. The lifting mechanism lowers the electric grinding mechanism to the working height. That is, the electric grinding mechanism moves, cooperates with the bottom brackets of different specifications, and meets the specification requirements. The hollow shaft stops working, and the hollow shaft works to drive the cross to rotate. Four groups of electric grinding mechanisms work to clean the four working surfaces of the bottom bracket respectively. Production High efficiency and good product quality.

The lifting mechanism of the present invention includes two synchronous oil cylinders arranged vertically, the piston rods of the two synchronous oil cylinders are connected to the lifting platform, and the driving of the oil cylinders is stable and reliable.

In order to ensure the vertical lifting of the lifting platform, four square guide rods are connected to the lifting platform. The four sides of the guide rods are respectively equipped with rollers. The rollers are connected to the door frame through the roller seats. contact settings.

In order to provide the stability and safety of the lifting platform, a connecting rod is hinged on the lifting platform, the other end of the connecting rod is connected with a guide wheel, and a transverse guide wheel groove is set on the door frame, and the guide wheel is in the guide wheel groove slide.

The slewing bearing of the present invention includes an inner ring and an outer ring, the inner ring is connected to the lifting platform, rolling elements are arranged between the outer ring and the inner ring, outer teeth are arranged on the outer ring, and a rotating motor is connected to the lifting platform, and the rotating motor is connected to a small The gear, the rotating pinion meshes with the outer teeth of the outer ring. The rotating motor drives the rotating pinion to rotate, and the outer ring is driven to rotate through the outer teeth, thereby driving the hollow shaft to rotate.

In order to fine-tune the distance between the electric grinding mechanism and the bottom bracket, an adjustment screw is inserted on the pulley seat, the adjustment screw is vertically arranged, the nut is threaded on the adjustment screw, and the nut is fixedly connected with the pulley seat, and the adjustment screw The lower end is fixedly connected with the support.

In order to guide during adjustment, a guide post is placed on the pulley seat, the guide post is vertically arranged, and the lower end of the guide post is fixedly connected with the support.

Among the four motors of the present invention, the output shafts of two motors are arranged downward, and the output shafts of the other two motors are arranged horizontally.

Description of drawings

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

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a right side view of Fig. 1 .

Fig. 4 is a schematic diagram of the retracted synchronous oil cylinder in Fig. 3 .

Fig. 5 is an enlarged view of part A in Fig. 1 .

Fig. 6 is a structural schematic diagram of the cross and the electric grinding mechanism.

FIG. 7 is a top view of FIG. 6 .

Fig. 8 is a view along B-B in Fig. 6 .

In the figure, 1 mast, 2 synchronous oil cylinder, 3 roller, 4 slewing bearing, 401 inner ring, 402 outer ring, 403 rolling body, 5 electric grinding mechanism, 501 wire wheel, 502 motor, 503 support, 504 pulley, 505 Pulley seat, 506 guide column, 507 adjusting screw, 508 nut, 6 cross, 601 support arm, 602 chute, 603 channel steel, 7 hollow shaft, 8 hollow shaft, 9 lifting platform, 10 connecting rod, 11 guide wheel groove , 12 guide wheels, 13 adjustable distance motors, 14 guide rods, 15 roller seats, 16 rotating motors, 17 rotating pinions, 18 four-link sprockets, 19 driven sprockets, and 20 chains.

Detailed ways

As shown in Figures 1 to 8, the automatic cleaning bottom support mechanism includes a door frame 1, and a lifting platform 9 is arranged in the door frame 1. The lifting platform 9 is connected with the upper end of the door frame 1 through two synchronous oil cylinders 2, and the synchronous oil cylinder 2 Arranged vertically, the cylinder barrel of the synchronous oil cylinder 2 is connected with the mast 1, the piston rod of the synchronous oil cylinder 2 is connected with the lifting platform 9, and the synchronous oil cylinder 2 drives the lifting platform 9 to lift.

Connect four square guide rods 14 on the lifting platform 9, the four faces of the guide rods 14 are provided with rollers 3 respectively, the rollers 3 are connected on the door frame 1 through the roller seat 15, and the four faces of the guide rods 14 are in phase with the rollers 3. contact settings. Hinged connecting rod 10 on lifting platform 9, the other end of connecting rod 10 is connected guide wheel 12, and horizontal guide wheel groove 11 is set on door frame 1, and guide wheel 12 slides in guide wheel groove 11.

A cross 6 is arranged below the lifting platform 9, and a hollow shaft 8 is connected above the intersection of the cross 6. A slewing bearing 4 is arranged on the hollow shaft 8. The slewing bearing 4 includes an inner ring 401 and an outer ring 402, and the inner ring 401 is connected to the lifting platform 9. Through bolt connection, rolling body 403 is set between outer ring 402 and inner ring 401, outer teeth are set on outer ring 402, and rotating motor 16 is connected on lifting platform 9, and rotating motor 16 is connected with rotating pinion 17, and rotating pinion 17 and The outer teeth of the outer ring 402 are meshed, and the outer ring 402 is connected with the hollow shaft 8 . The rotating motor 16 works, and through the transmission of the rotating pinion 17 and the outer ring 402, the hollow shaft 8 is rotated, that is, the cross 6 is rotated.

The cross 6 is integrally formed by four supporting arms 601 , the supporting arms 601 include two channel steels 603 , and the channel steels 603 have slide grooves 602 . Electric grinding mechanism 5 is all set on each supporting arm 601, and electric grinding mechanism 5 comprises pulley seat 505, bearing 503, motor 502 and steel wire wheel 501, and pulley seat 505 connects four groups of pulleys 504, wherein two groups of pulleys 504 are in one One channel steel 603 slides in the chute 602, and the other two pulleys 504 slide in the other channel steel 603 chute 602.

The support 503 is arranged below the pulley seat 505, and an adjusting screw 507 is inserted on the pulley seat 505. The adjusting screw 507 is vertically arranged, and the nut 508 is threaded on the adjusting screw 507, and the nut 508 is fixedly connected with the pulley seat 505. The lower end of the adjusting screw rod 507 is fixedly connected with the support 503 . A guide post 506 is placed on the pulley seat 505 , the guide post 506 is arranged vertically, and the lower end of the guide post 506 is fixedly connected to the support 503 . Both the guide post 506 and the adjusting screw 507 are located between the two channel steels 603 .

The motor 502 is connected on the support 503 , the output shafts of two motors in the four motors 502 are arranged downwards, the output shafts of the other two motors are arranged horizontally, and the output shafts of the motors 502 are connected with the wire wheel 501 .

Hollow shaft 7 is set in hollow shaft 8, bearing is set between hollow shaft 8 and hollow shaft 7, and the lower end of hollow shaft 7 stretches out hollow shaft 8 and cross 6 and connects four chain sprockets 18 behind. The outer end of each support arm 601 is connected with the driven sprocket 19 , the driven sprocket 19 is connected with the four-chain sprocket 18 through the chain 20 , and the pulley seat 505 is connected with the chain 20 . The hollow shaft 7 extends from the upper end of the hollow shaft 8 and connects the distance-adjusting motor 13. The distance-adjusting motor 13 drives the hollow shaft 7 to rotate, thereby driving the four-chain sprocket 18 to rotate, and cooperates with the driven sprocket 19 to move the chain 20, thereby Drive the pulley seat 505 to move on the support arm 601, play the distance adjustment effect of the electric grinding mechanism 5, and be suitable for bottom brackets of different specifications.

This mechanism is controlled by PLC program, the transfer handlebar transfers the bottom support to the cleaning station, two synchronous oil cylinders 2 work, so that the electric grinding mechanism 5 is lowered to the working height, and the synchronous oil cylinder 2 stops working. The distance-adjusting motor 13 works, the hollow shaft 7 rotates, and the chain 20 moves through the four-link sprocket 18 and the driven sprocket 19, that is, the electric grinding mechanism 5 moves, and cooperates with bottom brackets of different specifications to meet the specification requirements. The distance-adjusting motor 13 stop working. The rotary motor 16 works to make the hollow shaft 8 rotate, and drives the cross 6 to rotate, and the motors of the four groups of electric grinding mechanisms 5 work to clean up the four working faces of the bottom bracket respectively, so that the production efficiency is high and the product quality is good.

Claims (7)

1. An automatic cleaning bottom supporting mechanism is characterized in that: comprise a door frame, a lifting platform is set in the door frame, the lifting platform is connected with the upper end of the door frame by a lifting mechanism; a cross is set under the lifting platform, the cross of the cross The hollow shaft is connected above the intersection, and the hollow shaft is connected to the rotating motor through the slewing bearing, and the rotating motor is connected to the lifting platform; the slewing bearing includes an inner ring and an outer ring, and the inner ring is connected to the lifting platform. The rolling body is set, the outer teeth are set on the outer ring, the rotating motor is connected to the rotating pinion, and the rotating pinion meshes with the outer teeth of the outer ring; the cross is formed by connecting four support arms, and each support arm is An electric grinding mechanism is set; the electric grinding mechanism includes a pulley seat, a support, a motor and a wire wheel, the pulley seat is connected to a pulley, and a chute is set on the support arm, and the pulley slides in the chute of the support arm; The seat is connected under the pulley seat, the motor is connected to the support, and the output shaft of the motor is connected to the wire wheel; a hollow shaft is arranged in the hollow shaft, and the lower end of the hollow shaft extends out from the hollow shaft and the cross to connect to the four-chain sprocket ; The outer end of each support arm is connected with a driven sprocket, the driven sprocket is connected with the four-chain sprocket through a chain, and the pulley seat is connected with the chain. 2. The automatic cleaning bottom support mechanism according to claim 1, characterized in that: the lifting mechanism includes two synchronous oil cylinders arranged vertically, and the piston rods of the two synchronous oil cylinders are connected to the lifting platform. 3. The automatic cleaning bottom support mechanism according to claim 1, characterized in that: four square guide rods are connected on the lifting platform, the four surfaces of the guide rods are respectively provided with rollers, and the rollers are connected to the door frame through the roller seat On, the four faces of the guide rod are set in contact with the rolling wheels. 4. The automatic cleaning bottom support mechanism according to claim 1, characterized in that: a connecting rod is hinged on the lifting platform, the other end of the connecting rod is connected to a guide wheel, and a transverse guide wheel groove is set on the door frame , the guide wheel slides in the guide wheel groove. 5. The self-cleaning bottom support mechanism according to claim 1, characterized in that: an adjustment screw is inserted on the pulley seat, the adjustment screw is vertically arranged, the nut is threaded on the adjustment screw, and the nut is connected to the pulley seat Fixedly connected, the lower end of the adjusting screw rod is fixedly connected with the support. 6. The bottom support mechanism for automatic cleaning according to claim 5, characterized in that: a guide post is placed on the pulley seat, the guide post is arranged vertically, and the lower end of the guide post is fixedly connected with the support. 7. The automatic cleaning bottom support mechanism according to claim 1, characterized in that: among the four motors, the output shafts of two motors are arranged downward, and the output shafts of the other two motors are arranged horizontally.

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