CN103658267A

CN103658267A - Electric pipe bender

Info

Publication number: CN103658267A
Application number: CN201310328619.0A
Authority: CN
Inventors: 魏振文; 刘汝刚; 崔建波; 刘继成; 李环玉; 张凤岐
Original assignee: QINGDAO DORIGHT CO Ltd
Current assignee: QINGDAO DORIGHT CO Ltd
Priority date: 2013-07-27
Filing date: 2013-07-27
Publication date: 2014-03-26

Abstract

A hydraulic pipe bender is narrow in bending radius range, the pipe bending requirements of a U-shaped tubular heat exchanger can be met only through a small device and a large device, and a mold is complicated in shape and costly in price; the bending radius range of a manual pipe bending device is not limited, and a mold is simple and cheap, however, physical output of manual pipe bending is too high. The invention provides a pipe bender which is wide in bending radius range, a mold is simple and cheap, and physical labor is not consumed. The electric pipe bender is composed of a machine frame flat plate, a worm speed reducer, a rotary force arm, a center wheel, a star wheel and a pipe fixer. The electric pipe bender is characterized in that the worm speed reducer is installed on the machine frame flat plate, an output shaft of the speed reducer faces upwards, the rotary force arm is installed at the root of the output shaft, and the center wheel is arranged at the top of the output shaft in a sleeved mode; the star wheel which is flush with the center wheel is installed in a strip-shaped hole in the rotary force arm and can move along the strip-shaped hole so that the distance between the star wheel and the center wheel can be changed. Compared with the hydraulic pipe bender, the equipment purchasing (manufacturing) cost can be saved by more than 230 thousand RMB.

Description

A kind of electric pipe bender

Technical field

The present invention relates to a kind of production of pressure container equipment, especially bending machine.

Background technology

In production of pressure container, often run into U-shaped pipe heat exchanger, this equipment overwhelming majority workload is curved U-shaped pipe; 18～38, very long pipe of U-shaped pipe caliber is curved with regard to mono-360 ° of Wei's, but the logical U-shaped pipe heat exchanger of a Daepori, the kind of the bending radius of its U-shaped pipe is very wide, and from R40 to R465, kind has 21 kinds; Use the curved U-shaped pipe of hydraulic pipe bender, first problem is the range limited system of its bending radius, and the bending radius scope of ting model (W27Y-60) is 30～300, and the bending radius of large model (W27Y-120) is 70～500, need to buy two equipment; Second Problem is mould problem, and die of hydraulic pipe bender is bending die or be shaped die, and shape is special, complex structure, and price is very expensive; Use the not restriction of bending radius of artificial angle pipe equipment, mould is cheap simply again, but artificial bend pipe consumes one's strength too large.

Summary of the invention

In order to reduce the investment of angle pipe equipment, save the consumption of bend pipe mould, avoid manual labor bend pipe; The present invention proposes a kind of bending radius wide ranges, mould simple cheap, the angle pipe equipment scheme of the work that do not consume one's strength.

The technical solution adopted for the present invention to solve the technical problems is: a kind of electric pipe bender, dull and stereotyped by frame, strip hole on frame flat board, worm reduction gear, rotary arm, strip hole on rotary arm, centre wheel, star-wheel, pipe fixator, the lower platen of pipe fixator, the top board of pipe fixator, little axle, nut, square nut, the compositions such as top fastening bolt, it is characterized in that: a worm reduction gear is installed on frame flat board, the output shaft of reductor is installed upward, rotary arm is arranged on the root of output shaft exposed parts, centre wheel is enclosed within the top of output shaft, the star-wheel concordant with centre wheel, is arranged on the strip hole on rotary arm by little axle and nut, and little axle can be along strip hole shift position, to change the distance of star-wheel and centre wheel, the square nut with top fastening bolt that can change position is also installed on rotary arm, and top fastening bolt withstands little axle towards centre wheel direction, to guarantee that when stressed, the distance of star-wheel and centre wheel is constant, pipe fixator is installed on the strip hole on frame flat board, with the lower platen of pipe fixator, pins pipe fixator position, with the top board of pipe fixator, push down and Yao the curved pipe of Wei.Start reductor, rotary arm can drive star-wheel curved around centre wheel Xuan Zhuan Wei, and Xu is Yaoed the curved much angles of Wei just allows rotary arm turn much angles.

The invention has the beneficial effects as follows, electric pipe bender small investment, an electric pipe bender just can meet the bend pipe requirement of a whole set of U-shaped heat exchange of heat pipe; Mold shape is simple, and price is cheap, saves muscle power, and bending quality is secure; Compare with using hydraulic pipe bender, hydraulic pipe bender need be bought two equipment of size, approximately 250,000 yuan of buying expenseses, and 1.5 ten thousand yuan of the manufacturing costs of an electric pipe bender are enough, can save equipment purchase investment more than 230,000 yuan; Make the expense of 21 kinds of moulds, can save more than 20,000 yuan.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is simple electric bending machine structural representation.

Fig. 2 is that Fig. 1 " A " is to view.

Fig. 3 is Fig. 1 " B-B " view.

In figure, 1. frame is dull and stereotyped, 2. worm reduction gear, 3. rotary arm, 4. centre wheel, 5. star-wheel, 6. pipe fixator, 7. little axle, 8. nut, 9. square nut, 10. top fastening bolt, the top board of (1) pipe fixator, the lower platen of the solid device of (2) pipe, K. the strip hole on frame flat board, the strip hole on M. rotary arm.

The specific embodiment

In figure, the worm reduction gear of electric pipe bender (2) be arranged on frame flat board (1) below, upward, rotary arm (3) is arranged on the root of output shaft exposed parts to the output shaft of reductor, centre wheel (4) is enclosed within the top of output shaft; The strip hole (M) that the star-wheel concordant with centre wheel (5) is arranged on rotary arm by little axle (7) and nut (8) is upper, and little axle can be along strip hole shift position, to change the distance of star-wheel and centre wheel; The square nut with top fastening bolt (10) (9) that can change position is also installed on rotary arm, and top fastening bolt withstands little axle, keeps constant with the distance of centre wheel when guaranteeing that star-wheel is stressed; The solid device (6) of pipe is arranged on the strip hole (K) on frame flat board, with the lower platen ((2)) of pipe fixator, pin the position of pipe fixator, with the top board ((1)) of pipe fixator, push down and Yao the curved pipe of Wei.

Claims

1. an electric pipe bender, dull and stereotyped by frame, the strip hole on frame flat board, worm reduction gear, rotary arm, the strip hole on rotary arm, centre wheel, star-wheel, pipe fixator, the lower platen of pipe fixator, the top board of pipe fixator, little axle, nut, square nut, top fastening bolt forms, and it is characterized in that: a worm reduction gear is installed on frame flat board, the output shaft of reductor is installed upward, and rotary arm is arranged on the root of output shaft exposed parts, and centre wheel is enclosed within the top of output shaft; The star-wheel concordant with centre wheel, is arranged on the strip hole on rotary arm by little axle and nut, and little axle can be along strip hole shift position, to change the distance of star-wheel and centre wheel; The square nut with top fastening bolt that can change position is also installed on rotary arm, and top fastening bolt withstands little axle towards centre wheel direction, to guarantee that when stressed, the distance of star-wheel and centre wheel is constant; Pipe fixator is installed on the strip hole on frame flat board, with the lower platen of pipe fixator, pins pipe fixator position, with the top board of pipe fixator, push down and Yao the curved pipe of Wei.