CN201324800Y

CN201324800Y - Novel forcible tube expander

Info

Publication number: CN201324800Y
Application number: CNU200820202120XU
Authority: CN
Inventors: 龙晓斌
Original assignee: Zhongshan Oms Industrial Co Ltd
Current assignee: Zhongshan Oms Industrial Co Ltd
Priority date: 2008-10-14
Filing date: 2008-10-14
Publication date: 2009-10-14
Anticipated expiration: 2018-10-14

Abstract

The utility model discloses a novel forcible tube expander, which comprises a frame; wherein a plurality of expanding arbors which can slide on the frame are arranged on the frame; a push mechanism which is used to push the expanding arbors to slide is arranged at the tails of the expanding arbors; and the main point of the technical scheme of the utility model is that a clamping device which can clamp both ends of each tube of a heat exchanger to prevent the longitudinal shrinkage of the tubes is arranged on the frame. The purpose of the utility model is to solve following defects: in the prior art, the metal tubes of the heat exchanger can be longitudinally shrunk while being radially expanded, moreover, the shrunk size of each metal tube differs, as a result, the metal tubes of the heat exchanger are uneven, and the heat exchanger is shortened. The forcible tube expander can forcibly expand the heat exchanger but cannot shrink the heat exchanger, thus keeping the size of the heat exchanger in consistent.

Description

A kind of novel Forcible tube expander

[technical field]

The utility model relates to a kind of electric tube expander.

[background technology]

Electric tube expander is the key equipment of a vitals in the heat exchanger air conditioner, and its principle is: utilize an expander roll, at the bloated ball of its end face setting greater than the copper pipe diameter.Under the effect of external force, the ball that expands swells copper pipe toward the copper pipe extruding, makes it closely to contact with fin, avoids producing loosening.At present, the electric tube expander on the market is when expanding the copper pipe of heat exchanger, and copper pipe all is to be in a kind of free state, when expand tube because the ball that expands greater than copper pipe, after copper pipe swells, will dwindle 3 ~ 4% naturally.Therefore, the heat exchanger of being produced under this production model often will slattern 3 ~ 4% raw material; And the employing high-power hydraulic system is wasted a large amount of electric power resources.

Along with improving constantly of civilization of human society degree, the epoch of economic develop rapidly and automated manufacturing arrive.Yet energy crisis is also more and more fiery thereupon, and especially raw material and electric waterpower resourses are in short supply day by day, and this will seriously affect the development of human being's production and even life.Following 10 years, China's sustainable development will face a series of severe challenge, should handle the problem of field long-term accumulation such as population, resource, environment well, solve the new problem that occurs in evolution again.How better the scientific and technical effect of performance provides stronger support and assurance for promoting China's sustainable development.In order to adapt to the needs that modernization science and technology is produced, further investigate and add great development and have the automaticity height, production efficiency production equipments high, energy-conserving and environment-protective are imperative.

[utility model content]

The utility model purpose be overcome when the metal tube of heat exchanger radially swells in the prior art can vertically shrink and size that every metal tube shrinks inconsistent, will cause the deficiency that metal tube is uneven and heat exchanger shortens of heat exchanger, provide a kind of heat exchanger pressure is swollen can not shrink the novel Forcible tube expander that keeps the heat exchanger size unanimity.

The utility model is achieved through the following technical solutions:

A kind of novel Forcible tube expander, comprise frame, be provided with the many expander rolls that can on frame, slide on the frame, be provided with the pushing mechanism that is used to promote the expander roll slip at the expander roll tail end, it is characterized in that on described frame, being provided with and the pipe fitting two ends of heat exchanger can be clamped the clamping device that prevent that pipe fitting from vertically shrinking.

Aforesaid novel Forcible tube expander is characterized in that described clamping device comprises U-shaped pipe retaining mechanism that can clamp heat exchanger pipe fitting U-shaped end and the Taper Pipe clamp mechanism that clamps the heat exchanger pipe fitting other end.

Aforesaid novel Forcible tube expander is characterized in that described frame is provided with the Counterboring apparatus that the pipe fitting openend is enlarged.

Aforesaid novel Forcible tube expander, it is characterized in that the ball screw that with drive motors link to each other of described pushing mechanism on comprising the moved cross beam that links to each other with the expander roll tail end and being arranged on frame, described moved cross beam is installed on the ball screw, and it is reciprocal that described ball screw drives moved cross beam.

Aforesaid novel Forcible tube expander, it is characterized in that described U-shaped pipe retaining mechanism includes pedestal, head at pedestal is provided with the U-lag that cooperates with the U-shaped pipe, on described pedestal, be provided with locating shaft, on locating shaft, be hinged with the left and right fixture block of two symmetries, be respectively equipped with the groove that cooperates with the U-shaped pipe at described left and right fixture block head, be provided with the push-rod assembly that can promote left and right fixture block opening and closing at left and right fixture block afterbody.

Aforesaid novel Forcible tube expander, it is characterized in that described push-rod assembly includes straight trough that is arranged on the pedestal both sides and the left and right track groove that tilts in the opposite direction respectively on left and right fixture block, be provided with a push rod at the pedestal afterbody, the head of push rod is connected with a shifting axle, this shifting axle passes the oblique track groove of left and right fixture block and the straight trough of pedestal both sides slidably respectively, goes back suit one and can make left and right fixture block realize the spring of tension self-locking on push rod.

Aforesaid novel Forcible tube expander, it is characterized in that described pipe end clamp mechanism comprises fixed head and sliding panel, be fixedly connected with guide pillar on the fixed head, sliding panel is assemblied on the guide pillar, be fixed with collet on the described fixed head, be fixed with on the described sliding panel and be set in the outer slip tapered sleeve that collet is clamped of collet.

Aforesaid novel Forcible tube expander is characterized in that described collet expander is the taper clamp, and the taper clamp is little by sliding sleeve one end, has the slit vertically on the taper clamp stub end.

Compared with prior art, the utility model has following advantage:

1, utilization line slideway and the electronic expand tube of precise ball screw are than traditional electric tube expander energy-conservation 50% ~ 60%;

2, adopt the U pipe to force to clamp and mouth of pipe fixture of the spring, the size that mouth of pipe spring clip is used to change the direction of active force and strengthens active force under the effect of thrust up and down, vertically clamps the mouth of pipe, makes reliable clamping, and is easy to operate.Like this, guaranteed interchanger simultaneously when expand tube, length can not change, and can save 4% ~ 5% raw material than traditional electric tube expander;

3, adopted the rotation mode transposition of rotary table, realized that two-stage enlarging and the double of expand tube on uniform machinery finish the overall process of expand tube, realize enlarging and expand tube simultaneously double separately enhance productivity;

4, adopt servo digital control technology, the enlarging degree of depth, Workpiece length and the expand tube degree of depth have all realized SERVO CONTROL, and be easy to operate, accurate positioning, automaticity height.

5, hydraulic electric motor only needs 3.75KW, and power is little, and adopts the small-power air cooling system again, widely conservation of power and waterpower resourses.

[description of drawings]

Fig. 1 is the utility model stereogram;

Fig. 2 is the utility model user mode figure;

Fig. 3 is the utility model I portion enlarged drawing;

Fig. 4 is the utility model J portion enlarged drawing;

Fig. 5 is the utility model stereogram;

Fig. 6 is the utility model U-shaped clamp mechanism stereogram;

Fig. 7 is the utility model U-shaped clamp mechanism stereogram;

Fig. 8 is that the utility model U-shaped clamps cutaway view;

Fig. 9 is that the utility model Taper Pipe clamps cutaway view.

[specific embodiment]

A kind of novel Forcible tube expander, comprise frame 1, be provided with the many expander rolls 2 that can on frame 1, slide on the frame 1, be provided with the pushing mechanism 3 that is used to promote expander roll 2 slips at expander roll 2 tail ends, on described frame 1, be provided with and the pipe fitting two ends of heat exchanger can be clamped the clamping device 4 that prevent that pipe fitting from vertically shrinking.Described clamping device 4 comprises U-shaped pipe retaining mechanism 5 that can clamp heat exchanger pipe fitting U-shaped end and the Taper Pipe clamp mechanism 6 that clamps the heat exchanger pipe fitting other end.Described frame 1 is provided with the Counterboring apparatus 8 that the pipe fitting openend is enlarged.

The ball screw 11 that links to each other with drive motors 10 on described pushing mechanism 3 comprises the movable push 9 that links to each other with expander roll 2 tail ends and is arranged on frame 1, described moved cross beam 9 is installed on the ball screw 11, and it is reciprocal that described ball screw 11 drives moved cross beam 9.

Described U-shaped pipe retaining mechanism 5 includes pedestal 501, head at pedestal 501 is provided with the U-lag 502 that cooperates with the U-shaped pipe, on described pedestal 501, be provided with locating shaft 503, on locating shaft 503, be hinged with the left and right fixture block 504,505 of two symmetries, be respectively equipped with the groove 506 that cooperates with the U-shaped pipe at described left and right fixture block 504,505 heads, be provided with the push-rod assembly 15 that can promote left and right fixture block 504,505 opening and closing at left and right fixture block 504,505 afterbodys.

Described push-rod assembly 15 includes straight trough 507 that is arranged on pedestal 501 both sides and the left and right skewed slot 508,509 that tilts in the opposite direction respectively on left and right fixture block 504,505, be provided with a push rod 20 at pedestal 501 afterbodys, the head of push rod 20 is connected with a shifting axle 21, this shifting axle 21 passes the track groove 508,509 of left and right fixture block 504,505 and the straight trough 507 of pedestal 501 both sides slidably respectively, also installs one and can make left and right fixture block 504,505 realize the spring 22 of tension self-locking on push rod 20.

Described pipe end clamp mechanism 6 comprises fixed head 601 and sliding panel 602, be fixedly connected with guide pillar 603 on the fixed head 601, sliding panel 602 is assemblied on the guide pillar 603, be fixed with collet 605 on the described fixed head 601, be fixed with on the described sliding panel 602 and be set in the collet 605 outer slip tapered sleeves 606 that collet 605 is clamped.Described collet 605 is the taper clamp, and the taper clamp is little by slip tapered sleeve 606 1 ends, has slit 607 on the taper clamp stub end vertically, and collet is realized clamping and release by slip tapered sleeve 606.

During 5 work of U-shaped pipe retaining mechanism, push rod 20 is upwards pushed away, the shifting axle 21 that is connected on push rod 20 heads will be on a left side, right fixture block 504,505 corresponding left sides, right tiltedly track groove 508, slide in 509, and shifting axle 21 simultaneously also the straight trough on pedestal 501 make linear slide for 507 li, a because left side, right tiltedly track groove 508,509 directions that tilt are opposite, be X-shaped, shifting axle 21 is under the position-limiting action of straight trough 507 like this, make a left side, right fixture block 504,505 afterbody is done rightabout rotation, make a left side, right fixture block 504,505 head is opened, afterwards pipe fitting is put into a left side, right fixture block 504,505 head, the U-shaped bottom of pipe fitting just is sandwiched in 502 li of U-lags.Decontrol push rod 20 afterwards, push rod 20 is under the spring force effect of spring 22, push rod 20 down moves back, the shifting axle 21 of push rod 20 heads is also slided at left and right fixture block 504,505 corresponding oblique track groove 508,509 and the straight troughs on the pedestal 501 507 respectively, then can drive left and right fixture block 504,505 makes it clamp pipe fitting together altogether, the spring force that is spring 22 makes left and right fixture block 504,505 realize the effect of self-locking, realizes clamping and prevent that pipe fitting breaks away from the effect of U-lag 502.

During 6 work of pipe end clamp mechanism, the mouth of pipe of heat exchanger metal tube is aimed at the bloated head of expander roll, start pushing mechanism 3 and promote expander rolls 2 the expansion bulb is stretched in the mouth of pipe, start oil cylinder and promote sliding panel 602 and make slip tapered sleeve 606 utilize the tapering collet 604 that is locked to clamp metal tubes.

Claims

1, a kind of novel Forcible tube expander, comprise frame (1), on frame (1), be provided with many and can go up the expander roll (2) that slides in frame (1), be provided with the pushing mechanism (3) that is used to promote expander roll (2) slip at expander roll (2) tail end, it is characterized in that on described frame (1), being provided with and the pipe fitting two ends of heat exchanger can be clamped the clamping device (4) that prevent that pipe fitting from vertically shrinking.

2, novel Forcible tube expander according to claim 1 is characterized in that described clamping device (4) comprises U-shaped pipe retaining mechanism (5) that can clamp heat exchanger pipe fitting U-shaped end and the Taper Pipe clamp mechanism (6) that clamps the heat exchanger pipe fitting other end.

3, novel Forcible tube expander according to claim 1 is characterized in that described frame (1) is provided with the Counterboring apparatus (8) that the pipe fitting openend is enlarged.

4, novel Forcible tube expander according to claim 1, it is characterized in that the ball screw (11) that with drive motors (10) link to each other of described pushing mechanism (3) on comprising the moved cross beam (9) that links to each other with expander roll (2) tail end and being arranged on frame (1), described moved cross beam (9) is installed on the ball screw (11), and it is reciprocal that described ball screw (11) drives moved cross beam (9).

5, novel Forcible tube expander according to claim 2, it is characterized in that described U-shaped pipe retaining mechanism (5) includes pedestal (501), head at pedestal (501) is provided with the U-lag (502) that cooperates with the U-shaped pipe, on described pedestal (501), be provided with locating shaft (503), on locating shaft (503), be hinged with the left side of two symmetries, right fixture block (504,505), on a described left side, right fixture block (504,505) head is respectively equipped with the groove (506) that cooperates with the U-shaped pipe, on a left side, right fixture block (504,505) afterbody is provided with and can promotes a left side, right fixture block (504,505) open, the push-rod assembly that closes (15).

6, novel Forcible tube expander according to claim 5, it is characterized in that described push-rod assembly (15) includes the straight trough (507) that is arranged on pedestal (501) both sides and on a left side, right fixture block (504,505) go up respectively the left side of inclination in the opposite direction, right track groove (508,509), be provided with a push rod (20) at pedestal (501) afterbody, the head of push rod (20) is connected with a shifting axle (21), this shifting axle (21) passes a left side slidably respectively, right fixture block (504,505) oblique track groove (508,509) and the straight trough (507) of pedestal (501) both sides, on push rod (20), go back suit one and can make a left side, right fixture block (504,505) spring (22) of realization tension self-locking.

7, novel Forcible tube expander according to claim 2, it is characterized in that described pipe end clamp mechanism (6) comprises fixed head (601) and sliding panel (602), be fixedly connected with guide pillar (603) on the fixed head (601), sliding panel (602) is assemblied on the guide pillar (603), be fixed with collet (605) on the described fixed head (601), be fixed with on the described sliding panel (602) and be set in the outer slip tapered sleeve (606) that collet (605) is clamped of collet (605).

8, novel Forcible tube expander according to claim 7 is characterized in that described collet expander (605) is the taper clamp, and the taper clamp is little by sliding sleeve (606) one ends, has slit (607) on the taper clamp stub end vertically.