CN2134243Y

CN2134243Y - Multi-layer spiral coiled pipe pipe bender

Info

Publication number: CN2134243Y
Application number: CN 92233857
Authority: CN
Inventors: 徐万银; 慕仁社; 王尚义
Original assignee: Lanzhou Oil Refining Chemical General Plant China Petroleum Chemical General Co
Current assignee: Lanzhou Oil Refining Chemical General Plant China Petroleum Chemical General Co
Priority date: 1992-09-25
Filing date: 1992-09-25
Publication date: 1993-05-26
Anticipated expiration: 2002-09-25

Abstract

The utility model relates to a pipe bender for a multi-layer spiral coiled pipe, comprising an electric machine, shaft couplings, a speed reducer, a bracket, a regulating screw pitch tyre, a steering tyre, a central shaft, and a regulating shaft. The electric machine (1) is connected with the speed reducer (3) through the shaft coupling (2); the speed reducer is connected with the central shaft (11) through the coupler (4); the central shaft (11) is fixed on the bracket (5); one end of the central shaft (11) is provided with the steering tyre (10), and the regulating shaft (12) is arranged under the central shaft (11); the regulating shaft is provided with the regulating screw pitch tyre (7).

Description

Multi-layer spiral coiled pipe pipe bender

The utility model relates to a kind of multi-layer helical coil pipe bending machine, and particularly a kind of motor-driven positioner formula multi-layer helical coil pipe bending machine belongs to petrochemical process coil pipe manufacturing equipment.

Spiral coil is a kind of heat exchange element commonly used in the petrochemical equipment.Existing coil pipe bends and mostly adopts the camber mold to bend piecemeal on the general elbow machine.The speed that bends is slow, and coil diameter is wayward, and the caliber ovality is big, and every kind of specification all needs a kind of special-purpose mold.At present more advanced is that three rollers are not in the mood for the coil pipe bending machine, and this machine need not any mold, as long as regulate the heart position of running roller, just can bend easily during operation, but this machine also can only coil system individual layer spiral coil, and can't coil system multi-layer helical coil pipe.

The purpose of this utility model provides a motor-driven positioner formula multi-layer helical coil pipe bending machine, and it can disposable continuous dish system multilayer coil pipe, and layer with layer between can press former design curve rounding off, and do not need interface.

The purpose of this utility model is achieved in that adopting a sliding buncher is power, drives worm-gear speed reducer, and the reductor worm gear connects by shaft coupling and center roll shaft to be done to rotate synchronously, and pipe one end is fixed on earlier on the roll shaft of center.After starting motor, pipe just is pressed in automatic continuous bending between center roll shaft and the regulating shaft, after the ground floor dish is intact, in the time of coiling the second layer, in ground floor coil pipe end one transition camber is installed and is turned to tire, and continue the electric disc system of starting after regulating shaft is transferred to correct position.Every layer of dish system method is identical later on.

The said a kind of multi-layer helical coil pipe bending machine of the utility model, by motor, shaft coupling, reductor, support, adjusting pitch tire, turn to tire, central shaft and regulating shaft to form, it is characterized in that motor (1) connects by shaft coupling (2) and reductor (3), reductor connects by shaft coupling (4) and central shaft (11), central shaft (11) is fixed on the support (5), have one to turn to tire (10) at central shaft (11) one ends, there are a regulating shaft (12), regulating shaft to be provided with one in central shaft (11) below and regulate pitch tire (7).

The utility model is suitable for bending of carbon steel pipe, stainless steel tube and nonferrous metal tube (as the titanium pipe), except that can bending the multilayer disc pipe, can also bend the spiral of Archimedes coil pipe, the diameter that the utility model can bend spiral coil is φ 200～φ 2500mm, the pipe diameter of coil pipe is φ 25～φ 57mm, and the number of plies of coil pipe is 1～3 layer.6 meters of the maximum lengths of coil pipe.The maximum total length of the pipe of dish system is 700 meters continuously.The linear speed that bends is 0.5～4.3 meter/minute.Power of motor is 3KW.2.5 tons of grosss weight of equipment.The pipe ovality is 1.2～2mm.The coil diameter error is 4～8mm.Existing coiler then is difficult to all reach above-mentioned parameter.

The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is according to the multi-layer helical coil pipe bending machine schematic diagram that the utility model proposes, wherein, and 1. motor, 2.4 shaft couplings, 3. reductor, 5. support, 6. the 3rd layer of coil pipe 7. regulated pitch tire, 8. second layer coil pipe, 9. the ground floor coil pipe 10. turns to tire, 11. central shafts, 12. regulating shafts.

Fig. 2 regulates the pitch tire to use schematic diagram among Fig. 1.

Fig. 3 turns to tire to use schematic diagram among Fig. 1.

Below in conjunction with details and the working condition of accompanying drawing detailed description according to the concrete device that the utility model proposes.

Fig. 1 is a positioner formula spiral coil bending machine schematic diagram.Motor 1 drives reductor 3, and reductor 3 connects by shaft coupling 4 with center roll shaft 11, and central shaft is fixed on the support 5.After motor starts, just drive central shaft and rotate, make the pipe that is pressed between central shaft 11 and the regulating shaft 12 coil system automatically continuously.The pitch of coil pipe is regulated (see figure 2) by camber pitch regulated tire 7.In the time of after the first lap lap of coil is intact, will turning to, by turning to tire 10(Fig. 3) rounding off to the second circle begins the dish system.

During operation, earlier every joint for pipe is welded with argon arc welding, fill sand (quartz sand, steel sand etc.) then, after mechanical oscillation make compacting, with stopper jam-pack pipe, the electric disc system of starting, dress are mentioned pipe one end with overhead traveling crane during sand and during the dish system, send bending machine smoothly to so that sand can be filled smoothly with pipe.

Claims

1, a kind of multi-layer helical coil pipe bending machine, by motor, shaft coupling, reductor, support, adjusting pitch tire, turn to tire, central shaft and regulating shaft to form, it is characterized in that motor (1) connects by shaft coupling (2) and reductor (3), reductor connects by shaft coupling (4) and central shaft (11), central shaft (11) is fixed on the support (5), have one to turn to tire (10) at central shaft (11) one ends, there are a regulating shaft (12), regulating shaft to be provided with one in central shaft (11) below and regulate pitch tire (7).