CN105970827A - A device and method for automatically threading pipes - Google Patents

Abstract

The present invention discloses an automatic pipe threading device, comprising a support, a driving mechanism and a steel clamp, and is characterized in that it comprises an upper driving wheel and a lower driving wheel, the upper driving wheel and the lower driving wheel are opposite to each other up and down and axially on the same vertical plane, the middle part of the upper driving wheel and the lower driving wheel are each provided with a concave arc, and the two concave arcs opposite to each other up and down are used to accommodate a clamping rubber rod, and a driving motor drives the upper driving wheel and the lower driving wheel to rotate simultaneously in opposite directions, and the support is provided with a lifting lug for lifting, which can reduce labor intensity, prevent lateral slippage and provide strong drive.

Description

A device and method for automatically threading pipes

technical field

The invention belongs to the technical field of prefabricated bridge construction equipment, in particular to an automatic pipe threading device.

Background technique

During the construction of prefabricated bridges, rubber tubes can be used to pull out the prestressed tension channels to form holes for subsequent steel strands to be threaded and prestressed. If the rubber tubes are not linearly smooth during installation, the prestressed cause great loss. At present, in the construction of bridge engineering, the installation of prefabricated beam hole hole-forming rubber rods mainly adopts the manual penetration installation method, that is, the hole-forming rubber tubes are manually transported to the two ends of the steel skeleton, guided by one person, and 8 to 10 people are required to manually install the holes. The rubber tube is penetrated into the channel, and this method has the disadvantages of high labor intensity, low work efficiency index, a work platform needs to be set up for the high-level channel, and unsafe operation.

The Chinese patent announcement number is 204982667 and the U application number is 201520425379.0, which discloses a pipe threading machine including a support, a plurality of rollers, two moving rails, a lifting motor, a lifting frame, a mounting frame, a steel wire rope, a pressing motor, and a plurality of transmission sleeves Sleeve, connecting sleeve, transmission motor, motor support plate, sleeve fixing plate and lead screw, the inventor considered that the clamping force of the transmission sleeve is insufficient, and increased the number and set up a plurality of them, but the driven sleeve is only passive Rotation, the overall driving force is insufficient, and there is still the problem that the rubber rod slips laterally from between the two drive rollers.

Contents of the invention

In order to overcome the above-mentioned technical defects and solve the above-mentioned problems, an automatic pipe threading device is provided, which can reduce labor intensity, prevent lateral slippage and have strong driving.

In order to achieve the above object, the present invention provides an automatic pipe threading device, which includes a support, a driving mechanism and a steel chuck, and is characterized in that it includes an upper driving wheel and a lower driving wheel, and the upper driving wheel and the lower driving wheel are opposite to each other up and down. And the axial direction is on the same vertical plane, the middle part of the upper driving wheel and the lower driving wheel has a concave arc, and the two concave arcs opposite up and down are used to accommodate and clamp the rubber rod, and the driving motor drives the upper driving wheel and the lower driving wheel according to the opposite direction. The direction of rotation at the same time, the support is provided with lifting lugs for hoisting, the steel chuck is installed on the front end of the rubber rod, the lower part of the steel chuck is provided with rollers, and a telescopic support arm is also included to drive the rubber rod according to the predetermined tunnel movement, the drive mechanism includes a drive motor, a sprocket, a chain and a transmission shaft, the drive motor is connected to a reducer, the output shaft of the reducer is provided with an output sprocket, the upper drive wheel and the upper sprocket are provided at both ends of the upper drive shaft, and the lower drive The lower driving wheel and the lower sprocket are arranged at both ends of the shaft, and the auxiliary sprocket is arranged outside the lower sprocket, and the chain is engaged from the outer side of the upper sprocket and from the inner side of the lower sprocket. The upper transmission shaft is arranged on the case cover, and the lower transmission The shaft is set on the box base, one end of the box cover and the box base is connected or hinged by a rotating shaft, and the other end is open, the box cover and the box base can be buckled to form a complete box body, the box base is fixed on the support, and the two ends of the transmission shaft The round wheels are all provided with a through hole in the center of the round wheel, and the bearing is installed in the through hole. The transmission shaft passes through the bearing. The support is movably connected with the lifting frame in a way that can move up and down, and the lifting motor is installed on the surface of the support. , the winding shaft is connected to the output shaft of the hoisting motor, one end of the steel wire rope is fixed on the winding shaft, and the other end is fixed on the support through a plurality of guide wheels installed on the lifting frame, the support is provided with a lead screw, and the lead screw is set A boss perpendicular to the axial direction, the boss can press the box cover, and the support is fixed with a guide trustee, the center of the guide trusteeship is on the same horizontal line as the center of the two concave arcs opposite up and down, and the center of the drive wheel The vertical plane where the axial direction is located is perpendicular to the horizontal plane where the axial direction of the guiding and hosting is located.

A working method of an automatic pipe threading device, comprising the following steps:

Move the support and the parts on it to the place where the pipe is to be threaded, and use the lifting motor to adjust the support to a suitable height for threading the rod;

Manually or electrically operate the lead screw to loosen the compression on the box cover, adjust the distance between the two driving wheels to an appropriate distance according to the thickness of the rubber rod to be worn, and open the upper arc-shaped plate of the front guide tube upward;

The steps of passing the rubber rod through the rear guide tube, the concave arc between the upper and lower drives, and the lower arc plate of the front guide tube in turn, and putting the steel chuck on the front end of the rubber rod;

Turn down the upper arc plate of the front duct and cover the rubber rod, lock the lock between the upper arc plate and the lower arc plate, press the box cover to the box seat, manually or electrically operate the screw and pass The boss presses the box cover, and also causes the two driving wheels to clamp the rubber rod;

Start the drive motor, drive the output sprocket to rotate, drive the two drive wheels to rotate in opposite directions at the same time, use the friction between the surface of the drive wheel and the surface of the rubber rod to gradually penetrate the rubber rod into the positioning net;

The rollers of the steel chuck roll smoothly in the positioning net, the rubber rod with the steel chuck travels in the predetermined channel of the positioning net, or the telescopic support arm travels in the predetermined channel of the positioning net, and the rubber rod fixed on the telescopic support arm also Steps to walk through.

The invention adopts electric lifting and electric pipe threading, which is safe and reliable in performance. The clamped rubber pipe is installed quickly during use, and the operation is convenient. The number of operators is small, and there is no cross construction, which improves the working environment; at the same time , The rubber tube is not easy to wear and tear, which improves the work efficiency. The upper and lower opposite concave arcs are used to accommodate and clamp rubber rods, which can prevent lateral slippage.

When the rubber rod travels through the tunnel, it is easy to change direction or upturn due to its light weight, resulting in the phenomenon of being stuck in the tunnel. In actual operation, manual methods are usually used to solve this problem, and the rubber rod can be adjusted at any time with a hand-held hook. Adjustment, the installation of steel chuck can increase the counterweight and protect the rubber rod from damage, and its rollers roll in the hole to avoid stuck phenomenon; or fix the rubber rod to the telescopic support arm, and the telescopic support arm is controlled by the motor in the hole Walking through, untie the rubber rod when walking in place, and then recover the telescopic support arm, which can also avoid jamming.

The upper driving wheel and the upper sprocket are arranged at both ends of the upper transmission shaft, the lower driving wheel and the lower sprocket are arranged at both ends of the lower transmission shaft, and the auxiliary sprocket is arranged outside the lower sprocket. The inner sides of the wheels are meshed, and the rotation of the output sprocket can drive the upper and lower sprockets to rotate in opposite directions at the same time, that is, the upper and lower drive wheels can rotate in opposite directions at the same time, and the upper and lower wheels are driven at the same time, with sufficient power.

The upper drive shaft is set on the box cover, and the lower drive shaft is set on the box seat, the box cover and the box seat can be fastened to form a complete box body, and all or most of the driving mechanism is set in the box, which can play a protective role; One end of the cover and the box base is connected or hinged by a rotating shaft, and the other end is open for easy opening and maintenance; the box cover and the box base can be fastened, and the downward movement of the box cover is limited by the box seat, and the pressing mechanism presses down on the box cover , when the box cover and the box seat are fully buckled, the compression limit is reached, and the compression limit is set to prevent the rubber rod from being crushed.

Round wheels are arranged at both ends of the transmission shaft, and a through hole is arranged in the center of the round wheel, and a bearing is installed in the through hole, and the transmission shaft passes through the bearing. The upper and lower round wheels are respectively fixed on the box cover and the box seat, which ensures that the transmission shaft is firmly installed, supported strongly, and rotates flexibly. tightening torque.

The guide hosting is used to lead in between the driving wheels, out of the driving wheels, and guide to the predetermined channel to ensure that they are introduced on the same straight line.

Description of drawings

Fig. 1 is a front view of the lifting frame device provided by the present invention.

Fig. 2 is a side view of the lifting frame device provided by the present invention.

Fig. 3 is a schematic diagram of the structure of the sprocket on the side of the box.

Fig. 4 is a structural schematic diagram of a steel chuck.

Fig. 5 is a structural schematic diagram of the telescopic support arm.

Fig. 6 is a schematic diagram of a drive wheel with a sawtooth-shaped concave arc surface.

Fig. 7 is a schematic diagram of the cooperative structure of the front guide tube and the rear guide tube.

Fig. 8 is a schematic diagram of the assembly structure of the driving wheel, the circular wheel and the sprocket.

Fig. 9 is a schematic diagram of the cooperation between the screw and the box structure.

Fig. 10 is a schematic diagram of the rear catheter structure.

Fig. 11 is a schematic diagram of the structure of the front catheter.

In the figure: 1 support; 2 steel chuck; 3 upper drive wheel; 4 lower drive wheel; 5 concave arc; 6 roller; 7 telescopic support arm; 8 chain; ;12 lower sprocket; 13 auxiliary sprocket; 14 small sprocket; 15 case cover; 16 case seat; 17 round wheel; 18 lifting frame; 19 lifting motor; 20 steel wire rope; ; 24 front conduit; 25 rear conduit; 26 upper arc plate; 27 lower arc plate; 28 lock; 29 wheels; 30 lugs;

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in the figure, an automatic pipe threading device provided by the present invention includes a support 1, a driving mechanism and a steel chuck 2, including an upper driving wheel 3 and a lower driving wheel 4, and an upper driving wheel 3 and a lower driving wheel 4 The upper and lower driving wheels 3 and the lower driving wheels 4 have a concave arc 5 in the middle of the upper and lower driving wheels 4. The upper and lower driving wheels 4 are opposite to each other and the axial direction is on the same vertical plane. Rotate simultaneously with the lower driving wheel 4 in the opposite direction. The steel chuck 2 is installed at the front end of the rubber rod. The lower part of the steel chuck 2 is provided with a roller 6 and a telescopic support arm 7 to drive the rubber rod to the predetermined channel. Movement, the drive mechanism includes a drive motor, a sprocket, a chain 8 and a drive shaft 9, the drive motor is connected to a reducer, the output shaft of the reducer is provided with an output sprocket 10, and the upper drive wheel 3 and the upper sprocket are arranged at both ends of the upper drive shaft 11. The lower driving wheel 4 and the lower sprocket 12 are arranged at both ends of the lower transmission shaft, and the auxiliary sprocket 13 is arranged outside the lower sprocket 12, and the chain 8 is engaged from the outer side of the upper sprocket 11 and from the inner side of the lower sprocket 12. The above-mentioned upper transmission shaft is arranged on the box cover 15, and the lower transmission shaft is arranged on the box seat 16. One end of the box cover 15 and the box seat 16 is connected or hinged by a rotating shaft, and the other end is open. The box cover 15 and the box seat 16 can be buckled together to form a complete box. Body, the box seat 16 is fixed on the support 1, the two ends of the transmission shaft 9 are provided with a round wheel 17, a through hole is arranged in the center of the round wheel, and a bearing is installed in the through hole, and the transmission shaft 9 passes through the bearing. Support 1 is movably connected with lifting frame 18 in a manner that can move up and down. Lifting motor 19 is installed on the surface of bearing 1. The output shaft of lifting motor 19 is connected with winding shaft. One end of steel wire rope 20 is fixed on the winding shaft, and the other end is installed A plurality of guide wheels on the lifting frame 18 are fixed on the support 1, and the support 1 is provided with a lead screw 21, and the lead screw 21 is provided with a boss 22 perpendicular to the axial direction, and the boss 22 can be compressed The box cover 15, the support 1 is fixedly provided with a guide custodian 23, the center of the circle of the guide custodian 23 is on the same horizontal line as the center of circle of the two concave arcs 5 opposite up and down. The horizontal plane where the axis is located is perpendicular to.

A working method of an automatic pipe threading device, comprising the following steps:

Move the support 1 together with the parts on it to the place where the pipe is to be threaded, and use the lifting motor to adjust the support 1 to the height suitable for threading the rod;

Manually or electrically operate the lead screw 21 to loosen the compression on the box cover 15, adjust the distance between the two driving wheels to an appropriate distance according to the thickness of the rubber rod to be worn, and open the upper arc-shaped plate 26 of the front guide tube 24 upwards A step of;

The step of passing the rubber rod sequentially through the rear conduit 25, the concave arc 5 between the upper and lower drives, and the lower arc plate 27 of the front conduit 24, and putting the steel chuck 2 on the front end of the rubber rod;

Turn down the upper arc-shaped plate 26 of the front duct 24 and cover the rubber rod, lock the lock 28 between the upper arc-shaped plate 26 and the lower arc-shaped plate 27, press the box cover 15 to the box seat 16, manually Or electrically operate the lead screw 21 and press the box cover 15 through the boss 22, and also cause the two driving wheels to clamp the rubber rod;

Start the drive motor, drive the output sprocket 10 to rotate, drive the two drive wheels to rotate simultaneously in opposite directions, and use the friction between the surface of the drive wheel and the surface of the rubber rod to gradually penetrate the rubber rod into the positioning net;

The roller 6 of the steel chuck 2 rolls smoothly in the positioning net, the rubber rod of the strip steel chuck 2 travels in the predetermined channel of the positioning net, or the telescopic support arm 7 travels in the predetermined channel of the positioning net and is fixed on the telescopic support arm 7. The rubber rod also travels through the steps.

The prestressed rubber tube threading machine provided by the present invention adopts electric lifting and electric pipe threading, which is safe and reliable in performance. The clamped rubber tube is installed quickly during use, and the operation is convenient. The number of operators is small and there is no The cross construction improves the working environment; at the same time, the rubber tube is not easy to wear and tear, which improves the working efficiency. Two concave arcs 5 opposite up and down are used to accommodate and clamp rubber rods, which can prevent lateral slippage.

When the rubber rod travels through the tunnel, it is easy to change direction or upturn due to its light weight, resulting in the phenomenon of being stuck in the tunnel. In actual operation, manual methods are usually used to solve this problem, and the rubber rod can be adjusted at any time with a hand-held hook. Adjusting it smoothly, installing the steel chuck 2 can increase the counterweight and protect the rubber rod from damage. The roller 6 rolls in the hole to avoid stuck phenomenon; or fix the rubber rod to the telescopic support arm 7, and the telescopic support arm 7 is driven by the motor Control to pass through in the tunnel, and when walking in place, untie the rubber rod and reclaim the telescopic support arm 7, which can also avoid jamming. The telescopic support arm 7 is arranged on the front guide pipe 24 front end. The telescopic support arm 7 is provided with an arc-shaped semi-circular tube 32 , the top surface of which is open, and a rubber rod is fixed in the arc-shaped semi-circular tube 32 .

The support 1 is provided with a wheel 29 and a rudder to facilitate the overall displacement of the device.

The support 1 is provided with lugs 30 for hoisting, for threading a steel wire rope.

The guide tube 23 includes a rear conduit 25 and a front conduit 24; the rear conduit 25 is an arc-shaped semicircular pipe with an open top surface; the front conduit 24 includes an upper arc-shaped plate 26 and a lower arc-shaped plate 27, the two are connected or hinged by a rotating shaft , the upper arc-shaped plate 26 can be opened upwards.

The upper arc-shaped plate 26 and the lower arc-shaped plate 27 are provided with lock buckles 28 along the side edges for locking the upper and lower arc-shaped plates.

The steel chuck 2 includes a tip portion 31, which is convenient for the rubber rod to pass through the prestressed tunnel.

The upper driving wheel 3 and the upper sprocket 11 are arranged at the two ends of the upper transmission shaft, the lower driving wheel 4 and the lower sprocket 12 are arranged at the two ends of the lower transmission shaft, and the auxiliary sprocket 13 is arranged on the outer side of the lower sprocket 12, and the chain 8 starts from the upper chain. Wheel 11 outer meshes, meshes from lower sprocket 12 inboards, and output sprocket 10 rotates and can drive upper and lower sprockets to rotate to the opposite direction simultaneously, and promptly the upper and lower drive wheels realize the opposite direction rotation simultaneously, and the upper and lower two wheels drive simultaneously, and power is enough.

The upper transmission shaft is arranged on the case cover 15, and the lower transmission shaft is arranged on the case base 16. The case cover 15 and the case base 16 can be fastened into a complete box body, and all or most of the driving mechanism is arranged in the case, which can play a role Protective effect; one end of the box cover 15 and the box seat 16 is connected or hinged by a rotating shaft, and the other end is open for easy opening and maintenance; the box cover 15 and the box seat 16 can be buckled, and the downward movement of the box cover 15 is limited by the box Seat 16, when the compression mechanism presses case lid 15 down, when case lid 15 and box seat 16 are buckled fully and promptly reached the compression limit, the compression limit is set to prevent from crushing the rubber rod.

Both ends of the transmission shaft 9 are provided with a round wheel 17, and a through hole is arranged in the center of the round wheel, and a bearing is installed in the through hole, and the transmission shaft 9 passes through the bearing. The upper and lower round wheels are fixedly arranged on the case cover 15 and the case seat 16 respectively, which ensures that the transmission shaft 9 is firmly installed, has strong support, and can rotate flexibly. It is more labor-saving and reduces the pressing torque.

The guiding trusteeship 23 is used for leading in between the driving wheels, leading out the driving wheels, leading to a predetermined channel, and ensuring that they are introduced on the same straight line.

Auxiliary sprocket 13 is arranged on the outside of lower sprocket 12, which can ensure that chain 8 engages lower sprocket 12.

The straight-line distance between auxiliary sprocket 13 and output sprocket 10 is relatively far like this, easily causes chain 8 slack; On the inner side of auxiliary sprocket 13 and output sprocket 10 straight lines, ensure reasonable wheel spacing, prevent chain 8 from slipping.

Elevating frame 18 is the gate-shaped structure that two vertical bars and a cross bar form.

The lower end of the leading screw 21 is fixed on the top surface of the support 1, the leading screw 21 can rotate in the screw fixing seat, the surface of the leading screw 21 is provided with threads, and the leading screw fixing seat is also provided with corresponding threads, the rotary motion of the leading screw 21 itself Simultaneously cause the up and down movement relative to the fixed seat, drive the up and down movement of the boss 22, the case cover 15 can be compressed or loosened.

Said boss 22 surrounds and is fixed on the upper end of the leading screw 21, and the leading screw 21 can ensure that the boss 22 is pressed against the case cover 15 no matter when the leading screw 21 rotates to any angle and stops. The boss 22 can be integrally made with the lead screw 21 .

Described leading screw 21 can be provided with manual handle, and the operator holds handle and shakes leading screw 21 to rotate. Lead screw 21 can also be connected with a motor, and the rotation of lead screw 21 is realized electrically.

The inner surface of the concave arc 5 of the driving wheel is serrated to increase friction.

Hoisting motor 19, drive motor etc. all can be connected with distribution box, cooperate and realize intelligent remote control by controller and remote controller.

Cooperating above has described the embodiment of the present invention in detail in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned embodiment, within the scope of knowledge possessed by those of ordinary skill in the technical field, can also be without departing from the premise of the gist of the present invention Make various changes below.

Claims (10)

1. the device of an automatic tube-penetrating, including bearing, drive mechanism and steel clamp head, it is characterized in that, including upper driving wheel and lower driving wheel, upper driving wheel is the most relative with lower driving wheel and axial on same vertical, and the middle part of upper driving wheel and lower driving wheel is respectively provided with a concave arc, and two concave arcs opposing upper and lower are in order to accommodate clamping rubber bar, driving motor to drive upper driving wheel and lower driving wheel to rotate, described bearing is provided for the hanger of lifting the most simultaneously.

The device of a kind of automatic tube-penetrating the most according to claim 1, it is characterised in that described steel clamp head is arranged in rubber bar front end, the bottom of steel clamp head arranges roller.

The device of a kind of automatic tube-penetrating the most according to claim 1, it is characterised in that also include flexible trailing arm, in order to drive rubber bar to move by predetermined duct.

4. according to the device of a kind of automatic tube-penetrating described in claim 1,2 or 3, it is characterized in that, described drive mechanism includes driving motor, sprocket wheel, chain and power transmission shaft, driving motor to connect reductor, reductor shaft arranges output chain gear, uploads end shaft and arranges driving wheel and upper sprocket wheel, lower drive shaft two ends arrange lower driving wheel and lower sprocket, arranging auxiliary sprocket wheel outside lower sprocket, described chain engages outside upper sprocket wheel, engages inside lower sprocket.

The device of a kind of automatic tube-penetrating the most according to claim 4, it is characterized in that, described upper power transmission shaft is arranged at case lid, lower drive shaft is arranged at block, case lid is connected or hinged by rotating shaft with block one end, the other end is open, and case lid and block can fasten as completed cases, and described block is fixed on bearing.

The device of a kind of automatic tube-penetrating the most according to claim 4, it is characterised in that described power transmission shaft two ends are respectively provided with circle wheel, there is a through hole at Yuan Lun center, and through hole installs bearing, and described power transmission shaft passes from bearing.

7. according to the device of a kind of automatic tube-penetrating described in claim 1,2 or 3, it is characterized in that, described bearing is flexibly connected with hoisting frame in mode moving up and down, and lifting motor is arranged on the surface of bearing, connect roll on lifting motor output shaft, roll is fixed the one of steel wire rope End, the other end is fixed on bearing through the multiple directive wheels being arranged on hoisting frame.

8., according to the device of a kind of automatic tube-penetrating described in claim 1,2 or 3, it is characterised in that described bearing arranges leading screw, described leading screw is arranged and axially vertical boss, and described boss can compress case lid.

9. according to the device of a kind of automatic tube-penetrating described in claim 1,2 or 3, it is characterized in that, described bearing is fixedly installed guiding trustship, in the same horizontal line, the axial place vertical of driving wheel is perpendicular with the axial place horizontal plane guiding trustship in the center of circle of the center of circle of described guiding trustship and two concave arcs opposing upper and lower.

10. the method for work of the device of an automatic tube-penetrating, it is characterised in that comprise the following steps:

Move to treat at poling together with parts thereon by bearing, with lifting motor regulation bearing to being suitable for wearing the step of rod height；

Operated manually or electrically leading screw loosens the compression to case lid, according to the fineness of rubber bar to be worn, the spacing between two driving wheels is adjusted to suitable distance, the step upwards opened by the upper arc of dummy pipe；

Rubber bar is sequentially passed through the concave arc between rear tube, upper and lower two drivings, the arc lower plate of dummy pipe, and the step of steel clamp head on rubber bar front end sleeve；

To turn over and cover rubber bar under the upper arc of dummy pipe, snap close between arc and arc lower plate in locking, by case lid to block pressing, operated manually or electrically leading screw compress case lid by boss, also cause the step of two driving wheels clamping rubber bars simultaneously；

Start and drive motor, drive output chain gear to rotate, drive two driving wheels to rotate the most simultaneously, utilize the frictional force between wheel drive surfaces and rubber bar surface that rubber bar gradually penetrates the step in network for location；

The roller of steel clamp head is smooth in network for location to be rolled, and the rubber bar of strip steel chuck is walked in the duct that network for location is predetermined, or flexible trailing arm is walked in the duct that network for location is predetermined, is fixed on the step that the rubber bar of flexible trailing arm is walked the most therewith.