[0031] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0032] As shown in the figure, the present invention provides a dual-drive automatic pipe threading machine, including a support 1, a driving mechanism and a steel chuck 2, including an upper driving wheel 3 and a lower driving wheel 4, an upper driving wheel 3 and a lower driving wheel 4 The upper and lower driving wheels are opposite to each other and the axial directions are on the same vertical plane. The upper driving wheel 3 and the lower driving wheel 4 have a concave arc 5 in the middle. The two opposite concave arcs are used to hold and clamp the rubber rod, and the driving motor drives the upper driving wheel. 3 and the lower driving wheel 4 rotate in opposite directions at the same time. The steel chuck 2 passes through the front end of the rubber rod. The lower part of the steel chuck 2 is provided with a roller 6, and also includes a telescopic support arm 7 to drive the rubber rod according to a predetermined The tunnel 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 both ends of the upper drive shaft are provided with an upper drive wheel 3 and a winding chain Wheel 11, two ends of the lower drive shaft are provided with a lower driving wheel 4 and a lower sprocket 12, and an auxiliary sprocket 13 is provided on the outside of the lower sprocket 12. The chain 8 meshes from the outside of the upper sprocket 11 and meshes from the inside of the lower sprocket 12. The 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 complete The box body, the box seat 16 is fixed to the support 1, the transmission shaft 9 is provided with round wheels 17 at both ends, and the center of the round wheel is provided with a through hole. The through hole is equipped with a bearing. The transmission shaft 9 passes through the bearing, so The support 1 is movably connected to the lifting frame 18 in a manner that can move up and down. The lifting motor 19 is installed on the surface of the support 1. The output shaft of the lifting motor 19 is connected to a winding shaft. One end of the wire rope 20 is fixed on the winding shaft, and the other end passes through A plurality of guide wheels mounted on the lifting frame 18 are fixed on the support 1, the support 1 is provided with a screw 21, the screw 21 is provided with a boss 22 perpendicular to the axial direction, and the boss 22 can be pressed Tighten the box cover 15. The support 1 is fixedly provided with a guide tube 23. The center of the guide tube 23 is on the same horizontal line as the center of the two concave arcs 5 opposite to each other. The axial direction of the drive wheel is located on the vertical plane and the guide tube 23 The axis is perpendicular to the horizontal plane. The transmission shaft of the driving mechanism is provided with an oil seal to ensure the lubrication of the transmission shaft to prolong the service life of the components.
[0033] A working method of a dual-drive automatic pipe piercing machine includes the following steps:
[0034] Move the support 1 and the parts on it to the pipe to be pierced, and use the lifting motor to adjust the support 1 to a height suitable for the rod;
[0035] Manually or electrically operate the lead screw 21 to loosen the compression of the box cover 15, adjust the distance between the two driving wheels to a suitable distance according to the thickness of the rubber rod to be worn, and turn the upper arc plate 26 of the front duct 24 upward. A step of;
[0036] The steps of passing the rubber rod through the rear duct 25, the concave arc 5 between the upper and lower drives, and the lower arc plate 27 of the front duct 24 in turn, and putting the steel chuck 2 on the front end of the rubber rod;
[0037] Turn the upper arc plate 26 of the front duct 24 down and cover the rubber rod, lock the lock catch 28 between the upper arc plate 26 and the lower arc plate 27, press the box cover 15 to the box base 16, manually Or the screw 21 is electrically operated and the box cover 15 is pressed by the boss 22, which also leads to the step of clamping the rubber rod by the two driving wheels;
[0038] Start the drive motor, drive the output sprocket 10 to rotate, drive the two drive wheels to rotate in opposite directions at the same time, and use the friction between the surface of the drive wheel and the surface of the rubber bar to gradually penetrate the rubber bar into the positioning net;
[0039] The roller 6 of the steel chuck 2 rolls smoothly in the positioning net, and the rubber rod of the steel chuck 2 passes through the predetermined holes of the positioning net, or the telescopic support arm 7 passes through the predetermined holes of the positioning net and is fixed to the telescopic support arm Step 7 of the rubber rod followed by walking.
[0040] The prestressed rubber tube piercing machine provided by the present invention adopts electric lifting and electric piercing methods, and is safe and reliable in performance. The rubber tube clamped during use is quick to install, easy to operate, and has a small number of operators. Cross construction improves the working environment; at the same time, the rubber tube is not easy to wear and improves work efficiency. The two upper and lower concave arcs 5 are used for holding and clamping rubber rods, which can prevent lateral slippage.
[0041] When the rubber rod travels through the tunnel, it is easy to change the direction or upturn due to its light weight, causing the phenomenon of jamming in the tunnel. In actual operation, manual methods are usually used to solve this problem. For smooth adjustment, install the steel chuck 2 to increase the counterweight and protect the rubber rod from damage. The roller 6 rolls in the tunnel to avoid jamming; or the rubber rod is fixed to the telescopic support arm 7, which is powered by the motor It is controlled to travel in the tunnel, and when the rubber rod is unfastened when the travel is in place, the telescopic support arm 7 is recovered, which can also avoid jamming. The telescopic support arm 7 is arranged at the front end of the front duct 24. The telescopic support arm 7 is provided with an arc-shaped semicircular tube 32, the top surface of the arc-shaped semicircular tube 32 is open, and a rubber rod is fixed in the arc-shaped semicircular tube 32.
[0042] The support 1 is provided with wheels 29 and rudders to facilitate the overall displacement of the device.
[0043] The support 1 is provided with lifting lugs 30 for hoisting, which are used to thread the steel wire rope.
[0044] The guide tube 23 includes a rear tube 25 and a front tube 24; the rear tube 25 is an arc-shaped semicircular tube with an open top surface; the front tube 24 includes an upper arc plate 26 and a lower arc plate 27, which are connected or hinged by a shaft , The upper arc-shaped plate 26 can be opened upward.
[0045] The upper arc plate 26 and the lower arc plate 27 are provided with locks 28 along the sides for locking the upper and lower arc plates.
[0046] The steel chuck 2 includes a tip portion 31 to facilitate the rubber rod to pass through the prestressed tunnel.
[0047] The upper driving wheel 3 and the upper sprocket 11 are provided at both ends of the uploading shaft, the lower driving wheel 4 and the lower sprocket 12 are provided at both ends of the lower transmission shaft, and the auxiliary sprocket 13 is provided outside the lower sprocket 12. The chain 8 starts from the upper chain The outer side of the wheel 11 engages, and the inner side of the lower sprocket 12 is engaged. The rotation of the output sprocket 10 can drive the upper and lower sprocket to rotate in opposite directions at the same time. That is, the upper and lower driving wheels can rotate in opposite directions at the same time, and the upper and lower wheels are driven at the same time.
[0048] The upper transmission shaft is arranged on the box cover 15, and the lower transmission shaft is arranged on the box seat 16. The box cover 15 and the box seat 16 can be buckled together to form a complete box body. All or most of the drive mechanism is arranged in the box to achieve Protective effect; one end of the box cover 15 and the box base 16 is connected or hinged by a shaft, and the other end is open for easy opening and convenient maintenance; the box cover 15 and the box base 16 can be buckled together, and the downward movement of the box cover 15 should be limited by the box When the box cover 15 is pressed down by the compression mechanism, the compression limit is reached when the box cover 15 and the box seat 16 are completely buckled. The compression limit is set to prevent the rubber rod from being crushed.
[0049] Both ends of the transmission shaft 9 are provided with round wheels 17. The center of the round wheel is provided with a through hole. The through hole is equipped with a bearing. The transmission shaft 9 passes through the bearing. The upper and lower round wheels are respectively fixedly arranged on the box cover 15 and the box base 16 to ensure that the drive shaft 9 is installed firmly, strongly supported, and flexibly rotated. The upper and lower round wheels at both ends of the drive shaft 9 increase the weight of the box cover 15 and the box base 16. It saves more effort and reduces the pressing torque.
[0050] The guiding host 23 is used for guiding into the driving wheel, leading out the driving wheel, and guiding to the predetermined channel to ensure the introduction in the same straight line.
[0051] An auxiliary sprocket 13 is arranged outside the lower sprocket 12 to ensure that the chain 8 engages the lower sprocket 12.
[0052] In this way, the linear distance between the auxiliary sprocket 13 and the output sprocket 10 is relatively long, which is likely to cause the chain 8 to slack; in order to solve this problem, a small sprocket 14 is provided between the auxiliary sprocket 13 and the output sprocket 10. On the inner side of the straight line between the auxiliary sprocket 13 and the output sprocket 10, a reasonable wheel spacing is ensured to prevent the chain 8 from slipping.
[0053] The lifting frame 18 is a gate-shaped structure composed of two vertical rods and a cross rod.
[0054] The lower end of the screw 21 is fixed on the top surface of the support 1, the screw 21 can rotate in the screw fixing seat, the surface of the screw 21 is provided with threads, the screw fixing seat is also provided with corresponding threads, the screw 21 itself rotates At the same time, the up and down movement relative to the fixed seat is caused, which drives the up and down movement of the boss 22, which can compress or loosen the box cover 15.
[0055] The boss 22 surrounds and is fixed to the upper end of the lead screw 21, and the lead screw 21 can ensure that the boss 22 is pressed against the box cover 15 when the lead screw 21 stops at any angle. The boss 22 can be made integrally with the screw 21.
[0056] The screw 21 can be provided with a manual crank, and the operator holds the crank to shake the screw 21 to rotate. The lead screw 21 can also be connected with a motor to realize the rotation of the lead screw 21 electrically.
[0057] The inner surface of the concave arc 5 of the driving wheel is sawtooth to increase the friction.
[0058] The lifting motor 19, the driving motor, etc. can be connected to the distribution box, and the intelligent remote control is realized by the cooperation of the controller and the remote control.
[0059] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by a person of ordinary skill in the technical field, it may also be possible without departing from the purpose of the present invention. Make various changes.
