CN2464472Y

CN2464472Y - Diameter enlarging machine

Info

Publication number: CN2464472Y
Application number: CN 01211413
Authority: CN
Inventors: 王及元
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-19
Filing date: 2001-01-19
Publication date: 2001-12-12
Anticipated expiration: 2011-01-19

Abstract

The utility model belongs to the field of metal pipe processing or treating, which makes use of a conical expansion head to expand in a steel pipe, and the utility model can eliminate the forming pressure and the welding stress of the steel pipe. The utility model comprises a carrier, an expanding device, a straightening machine, a machine body, an expanding device support bracket, a welded seam adjusting frame and a main oil tank, wherein the expanding device comprises an expansion head, a plurality of expansion blocks, a draw rod and a hollow shaft. The expansion head is a twelve-point conical core body which is provided with twelve T-shaped slide ways, and the inner walls of a plurality of expansion blocks are respectively lined with wear-resistant setting plates. Each T-shaped slide way is provided with a T-shaped slider, and each expansion block is fixedly connected with the slider in the corresponding T-shaped slide way via bolts. The utility model has the advantages of high wear-resistance degree, rapid processing rate, long service life, etc.

Description

Expanding machine

The utility model relates to a kind of processing and processing machine of metal tube, particularly relates to a kind of be used to the eliminate briquetting pressure of UOE (UOE) and the expanding machine of welding stress.

Expanding machine is a kind of plant equipment that the UOE production process is eliminated steel pipe briquetting pressure and welding stress that is used for, and it is a key equipment of producing dedicated pipe indispensabilities such as oil, natural gas, coal gas.In the steel pipe's production process, can produce crooked, distortion in appearance, produce stress, strain on the microcosmic; Local heating also produces stress and concentrates in the welding process, tube quality can be subjected to very big influence like this, adopt expanding machine not only can effectively eliminate steel pipe briquetting pressure and welding stress, and steel pipe has been played the effect of aligning and shaping, thereby make its straight degree, circularity, diameter etc. desirable more, strengthened radially bearing capacity of steel pipe simultaneously.Method elimination steel pipe briquetting pressure and welding stress with machinery expanding have not only reflected the height of tubulation enterprise welding production technology level, and directly influence the quality of production and the economic benefit of steel pipe.At present there are some unreasonable parts in domestic and international similar expanding machine, dilates device and is arranged on the dolly, expand piece with dilate no wear-resisting wiping pad between the head, wet goods is lubricated in simple dependence, brings many inconvenience to actual production.

The purpose of this utility model, the utilization machinery that provides a kind of full-automation dilates briquetting pressure and the welding stress of eliminating steel pipe, is used for shaping and improve the expanding machine of steel pipe bearing capacity simultaneously.

The purpose of this utility model realizes by following technical proposals, that is:

Expanding machine comprises dolly, dilates device, straightener, fuselage, dilates device support, feed apparatus, fixed support, buffer, axially travel(l)ing rest, weld seam adjusting bracket, master cylinder.Wherein, dilating device comprises and dilates head, a plurality of bloated piece, pull bar, hollow shaft.Dilating head is 12 sides awl core body, 12 sides awl core body is provided with a plurality of T type chutes, be lined with wear-resisting backing plate on the inwall of a plurality of bloated pieces respectively, a plurality of bloated pieces are corresponding one by one with a plurality of T type chutes respectively, be provided with a T type slide block in each T type chute, the T type slide block in each bloated piece and the corresponding T type chute is bolted to connection.T type slide block can endwisely slip in T type chute, plays guiding, reaches position-limiting action.Wear-resisting backing plate can play the rubbing action that reduces to expand between piece and the hole enlargement head, and easily changes.Pull bar is arranged in the hollow shaft, one end of hollow shaft is fixed on the cylinder body of master cylinder, the other end is erected at and dilates on the device support, one end of pull bar is connected with 12 sides awl core body, the other end is connected with main oil cylinder piston, and main oil cylinder piston pulling pull bar makes the axially-movable of 12 sides awl core body, and 12 sides awl core body drives the piece that expands and does radial motion along chute, thereby the steel pipe caliber is dilated, reach the briquetting pressure of elimination steel pipe and the purpose of welding stress; Straightener is arranged on the rear portion that dilates the device support, and main body is a door type frame.Be equiped with the carrying roller that drives by upper cylinder and following oil cylinder on the door type frame.Following oil cylinder makes snub pulley withstand steel pipe, and upper cylinder makes upper supporting roller compress steel pipe, and is non-warping so that steel pipe is not swung during hole enlargement, guarantees the geometric accuracy of steel pipe; Be equiped with feed apparatus dilating on the device support, main body is the friction pulley of chain drive.This friction pulley can drive steel pipe and advance or retreat, and plays making steel pipe continue the effect of carrying at the moving of car end, makes hole enlargement continue to carry out, to reach the modified purpose of homogeneous tube.The weld seam adjustment rack is positioned on the pipeline of dolly, steel pipe seam can be adjusted to uppermost position.Buffer is arranged on the final position of dolly line of travel, plays cushioning effect.But dolly loads steel pipe stepping walking.

The utlity model has high-power, high-speed, single pole, hole enlargement advantage on earth.Owing between 12 sides awl core body and bloated piece, adopted T type slider guide and be lined with wear-resisting backing plate, thereby improved the wear-resistant degree of Expending device, prolonged the service life of Expending device.The utility model has also been installed feed apparatus (friction pulley of chain drive) dilating on the device support, hole enlargement can be stayed the course, accomplish that full pipe is modified, and with pipe straightener, when playing a supporting role behind the pipe expanding, to preventing that steel pipe from becoming bent, distortion, adjusts internal soundness and also play very big help.The utility model is bigger 5 times than efficient height, the power of domestic similar type, process velocity has also improved 5 times thereupon.

Fig. 1 is the structural representation of embodiment of the present utility model.Fig. 2 dilates the structural representation of device for the utility model.Fig. 3 is the A-A cutaway view that dilates device.Fig. 4 is the structural representation of straightener.The utility model is described in further detail below in conjunction with accompanying drawing.

Expanding machine comprises dolly 1, dilates device 20, straightener, fuselage 2, dilates device support 3, master cylinder 4, fixed support 5, buffer 6, axially travel(l)ing rest 7, weld seam adjusting bracket 8.Wherein, dilate device comprise dilate 10, piece 11, T type slide block 12, pull bar 13, hollow shaft 14 expand.Dilating 10 is 12 sides awl core body.12 sides awl core body 10 is provided with 12 T type chutes 15.Being lined with 16, ten wear-resisting backing plates 16 of wear-resisting backing plate respectively on the inwall of bloated piece 11 is fixed on the inwall of ten bloated pieces 11 by screw respectively.The piece 11 that expands is corresponding one by one with T type chute.1 T type slide block 12 of installing in each T type chute 15, each is bloated, and piece 11 is fixedlyed connected with 5 T type slide blocks 12 in the pairing T type chute 15 by 5 bolts respectively.12 guiding of T type slide block and position-limiting action.Wear-resisting backing plate 16 can play the effect that reduces the friction between piece 11 and the 12 sides awl core body 10 of expanding.Pull bar 13 is arranged in the hollow shaft 14, and one end and 12 sides awl core body 10 is connected, and the other end and master cylinder 4 interior pistons are connected.Piston in the master cylinder 4 spurs pull bar 13 and makes 10 axially-movables of 12 sides awl core body, and 12 sides awl core body 10 drives the piece 11 that expands and does radial motion along T type chute 15, thereby the steel pipe caliber is dilated, and reaches the briquetting pressure of elimination steel pipe and the purpose of welding stress; Straightener is arranged on the front portion of hollow shaft 14, and it comprises door type frame 17.Be equiped with the upper and lower carrying

roller

18 and 19 that is driven by upper cylinder and play oil cylinder on the door type frame 17, following oil cylinder makes snub pulley 19 withstand steel pipe, and upper cylinder makes upper supporting roller 18 compress steel pipe, and is non-warping so that steel pipe is not swung during hole enlargement, the geometric accuracy of assurance steel pipe; Dilating the friction pulley 9 that is equiped with chain drive on the device support 3, this friction pulley 9 can drive steel pipe and advance or retreat, and can make steel pipe continue the effect of carrying terminal the playing of dolly 1 motion, makes hole enlargement continue to carry out, to reach the purpose of homogeneous tube adjustment; Buffer 6 is arranged on the final position that dolly 1 is advanced, and plays cushioning effect; Weld seam adjusting bracket 8 is positioned on dolly 1 pipeline, directly over steel pipe seam can being adjusted to behind the position.

Claims

1, expanding machine comprises dolly (1), dilates device (20), straightener, fuselage (2), dilates device support (3), master cylinder (4), fixed support (5), buffer (6), axially travel(l)ing rest (7), weld seam adjusting bracket (8); Dilate device, comprise dilating head (10), a plurality of bloated piece (11), pull bar (13), hollow shaft (14); Dilating head (10) is 12 sides awl core body, and 12 sides awl core bodys (10) are provided with a plurality of T type chutes (15), and a plurality of bloated pieces (11) are corresponding one by one with a plurality of T type chutes (15) that 12 sides bore on the core bodys (10), it is characterized in that:

Be provided with 1 T type slide block (12) in A, each T type chute (15), T type slide block (12) in each bloated piece (11) and the corresponding T type chute (15) is bolted to connection, be lined with wear-resisting backing plate (16) on the inwall of each bloated piece (11), wear-resisting backing plate (16) is fixedlyed connected with the inwall of bloated piece (11);

B, be provided with straightener in the front portion of hollow shaft (14); Straightener comprises door type frame (17), is equiped with the upper and lower carrying roller (18) and (19) that are driven by upper cylinder and following oil cylinder on the door type frame (17);

C, be equiped with feed apparatus dilating on the device support (3), its main body is the friction pulley (9) of chain drive.