CN201342559Y - Steel tube forward rotation damping device - Google Patents
Steel tube forward rotation damping device Download PDFInfo
- Publication number
- CN201342559Y CN201342559Y CNU2008202300693U CN200820230069U CN201342559Y CN 201342559 Y CN201342559 Y CN 201342559Y CN U2008202300693 U CNU2008202300693 U CN U2008202300693U CN 200820230069 U CN200820230069 U CN 200820230069U CN 201342559 Y CN201342559 Y CN 201342559Y
- Authority
- CN
- China
- Prior art keywords
- swing arm
- steel tube
- roller
- steel pipe
- oil cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a steel tube forward rotation damping device, comprising an upright post and a four-bar mechanism. The upright post is fixed on a base; the four-bar mechanism comprises a lower swing arm, an upper swing arm and an engineering oil cylinder; one end of the upper swing arm and the lower swing arm is articulated with the upright post, and the other end is provided with a hydraulic motor; the hydraulic motor is respectively connected with an upper roller and a lower roller by a transmission shaft; and the middle parts of the upper swing arm and the lower swing arm are connected by the engineering oil cylinder. The lower swing arm is provided with an adjusting bolt for fine regulation. The utility model drives the roller to rotate with the hydraulic motor and provides opposing torque, presses the roller on the tube wall of a steel tube tightly with the pull force of the oil cylinder and transforms the torque of the roller into the resistance of the forward movement of the steel tube. When the diameter of the steel tube changes within Phi 400 to Phi 1460mm on a large scale, the pressure roller presses the outer wall of the steel tube tightly with the help of the plane four-bar mechanism. The utility model overcomes the forward rotation of the steel tube, ensures the stable running of the steel tube and provides reliable guarantee for the continuous weld of a tube blank.
Description
Technical field
The utility model relates to big steel pipes with straight joint close welding equipment technology, particularly a kind of steel pipe that can prevent is when welding closes to an end, along with the release of the strain of steel pipe and machine, go out suddenly the steel pipe preshoot damping unit that a segment distance influences the weld seam continuous welding forward.
Background technology
Steel pipe is in joint close initial period and middle continuous welding stage, there is the steel pipe pipe of certain opening size at the uniform velocity to push linking machine by force by the high-power driving dolly, under the pressure effect of each combinated seam roller of linking machine, the opening pipe is closed up, and carry out continuous welding, whole process continous-stable.But welding proceeds to steel pipe when terminal, and steel pipe leaves the running roller of linking machine successively, and the stress balance condition of steel pipe and frame is broken, and along with the release of strain energy, steel pipe is gone out a segment distance forward when steel pipe often occurring and breaking away from main pressure roller.Not only can not continuous welding, and influence the normal tracking of welding tracking system, occur when serious ceasing arc, starting the arc phenomenon repeatedly, can't weld the continuity and the welding quality of influence welding.
The utility model content
Technical problem to be solved in the utility model is to eliminate steel pipe when welding closes to an end, release along with the strain of steel pipe and machine, suddenly going out a segment distance forward influences the weld seam continuous welding, and has arranged a kind of steel pipe preshoot damping unit in main frame the place ahead.
Technical problem of the present utility model adopts following technical proposals to solve:
A kind of steel pipe preshoot damping unit, comprise column and quadric chain, described column is fixed on the basis, described quadric chain includes down swing arm, top link and engineering oil cylinder, following swing arm and top link one end are hinged on the column, the other end is equipped with hydraulic motor, and hydraulic motor connects upper roll wheel, lower roll wheel by power transmission shaft respectively, and described upper and lower swing arm middle part is connected by the engineering oil cylinder.
Described swing arm down is provided with and is used for the adjustment screw that trace is regulated.
The utility model utilizes the rotation of fluid motor-driven running roller, and opposing torque is provided.Driving is compared with motor reducer, and following some advantage is arranged: same torque situation lower volume is little; The rotary speed of running roller is low.When engineering oil cylinder pulling force was excessive, steel pipe greater than fluid motor-driven moment, did not keep constant even the running roller counter-rotating also can not damage hydraulic motor and running roller to the frictional force of steel pipe to the moment of friction of running roller.Utilize the pulling force of oil cylinder, pull on down swing arm, make the running roller of installing in the swing arm compress the steel pipe tube wall, the moment of running roller is converted into the proal resistance of steel pipe.Utilize lanar four rod mechanism,, realize that the steel pipe caliber when Φ 400～Φ 1460mm wide variation, compresses running roller and all can be pressed on outer wall of steel pipe by changing the length of rocking arm position and connecting rod.The engineering oil cylinder not only promotes top link and significantly swings, and realizes the needs of big or small caliber conversion, and the pulling force of engineering oil cylinder provides enough pressure for the up-down rollers wheel compresses steel pipe simultaneously, makes the moment of torsion of hydraulic motor effectively be converted into the frictional force that stops the steel pipe motion.The utility model has prevented the preshoot phenomenon of steel pipe, has guaranteed the even running of steel pipe, for the pipe continuous welding provides reliable guarantee.
Description of drawings
Fig. 1 is the utility model structural representation;
Quadric chain position view when Fig. 2 is minimum steel pipe by damping unit;
Fig. 3 is the utility model side view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
A kind of steel pipe preshoot damping unit, comprise column and quadric chain, column 1 is fixed on the basis, it is the installation basis of other parts, quadric chain includes down swing arm 2, top link 4 and engineering oil cylinder 3, following swing arm 2, top link 4 one ends are hinged on the column by bearing pin, can rotate around bearing pin.The pumping arm action middle part is connected by engineering oil cylinder 3, by the flexible swing that can realize down swing arm 2, top link 4 of oil cylinder.Pumping arm action the other end is equipped with hydraulic motor 9, and hydraulic motor 9 connects upper roll wheel 5, lower roll wheel 7 by power transmission shaft 8 respectively, drives upper roll wheel 5, lower roll wheel 7 by direction rotation shown in Figure 1.Following swing arm 2 is provided with and is used for the adjustment screw 10 that trace is regulated, and following swing arm 2 amplitudes of oscillation are less, and the position can carry out trace adjusting by adjusting screw 10, and this roller-way with the steel pipe linking machine makes the steel pipe Down Highway have a small amount of variation consistent.
Arrange that at the steel pipe port of export as shown in Figure 1 this device, engineering oil cylinder 3 will descend swing arm 2 and top link 4 to draw over to one's side to the centre, make power transmission shaft 8 and running roller 5,7 outer walls near steel pipe 6.As shown in Figure 3, hydraulic motor 9 drives upper roll wheel 5 by power transmission shaft 8 and lower roll wheel 7 rotates by direction shown in Figure 1, and the frictional force of running roller generation has the steel pipe of prevention trend forward up and down.Because the frictional force that running roller and steel pipe produced about the driving of promotion steel pipe was far longer than, therefore in welding process, steel pipe moves at the uniform velocity forward, when running into above-mentioned steel pipe and go out suddenly, as long as steel pipe breaks away from lorry, lorry is zero to the thrust of steel pipe, this moment, steel shaft was to only being subjected to up and down running roller to its wiping power, direction is opposite with the direction that steel pipe advances, this frictional force can effectively stop the preshoot of steel pipe, thereby guaranteed at the uniform velocity easy motion of steel pipe, for continuous welding provides reliable guarantee.
Claims (2)
1, a kind of steel pipe preshoot damping unit, comprise column and quadric chain, it is characterized in that described column (1) is fixed on the basis, described quadric chain includes down swing arm (2), top link (4) and engineering oil cylinder (3), following swing arm (2) and top link (4) one ends are hinged on the column (1), the other end is equipped with hydraulic motor (9), and hydraulic motor (9) connects upper roll wheel (5), lower roll wheel (7) by power transmission shaft (8) respectively, and described upper and lower swing arm middle part is connected by engineering oil cylinder (3).
2, steel pipe preshoot damping unit according to claim 1 is characterized in that described swing arm (2) down is provided with the adjustment screw (10) that is used for the trace adjusting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202300693U CN201342559Y (en) | 2008-12-14 | 2008-12-14 | Steel tube forward rotation damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202300693U CN201342559Y (en) | 2008-12-14 | 2008-12-14 | Steel tube forward rotation damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201342559Y true CN201342559Y (en) | 2009-11-11 |
Family
ID=41274142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202300693U Expired - Fee Related CN201342559Y (en) | 2008-12-14 | 2008-12-14 | Steel tube forward rotation damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201342559Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626071A (en) * | 2019-01-31 | 2019-04-16 | 湖南中南智能工业技术有限公司 | A kind of shaft withdrawing device |
-
2008
- 2008-12-14 CN CNU2008202300693U patent/CN201342559Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626071A (en) * | 2019-01-31 | 2019-04-16 | 湖南中南智能工业技术有限公司 | A kind of shaft withdrawing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20101214 |