CN112958709A - Online straightening device for expanding steel pipe - Google Patents
Online straightening device for expanding steel pipe Download PDFInfo
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- CN112958709A CN112958709A CN202110536287.XA CN202110536287A CN112958709A CN 112958709 A CN112958709 A CN 112958709A CN 202110536287 A CN202110536287 A CN 202110536287A CN 112958709 A CN112958709 A CN 112958709A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
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Abstract
The invention discloses an on-line steel pipe diameter-expanding straightening device, a steel pipe production device comprises a base and also comprises: the two supporting racks are used for forming a supporting effect on a mechanism connected to the two supporting racks, and the two supporting racks are symmetrically connected to the base in a sliding mode along the horizontal direction; the straightening mechanism is used for forming a straightening effect on the steel pipe subjected to online diameter expansion, and comprises an annular structure, a hydraulic structure, a clamping structure and a controller.
Description
Technical Field
The invention relates to the technical field of steel pipe production devices, in particular to a steel pipe expanding online straightening device.
Background
In a steel pipe processing apparatus, a steel pipe expanding machine is a machine for expanding the diameter of a steel pipe, and when a small-diameter thin-walled steel pipe is expanded, the steel pipe is easily bent after being expanded, and the straightness of the steel pipe is deteriorated. However, when the steel pipe is conveyed to a straightening machine for straightening after the diameter is expanded, the steel pipe is gradually hardened in the conveying process, the toughness of the steel pipe is reduced, and the steel pipe is easily cracked in the straightening process and the size of the formed steel pipe is changed when the steel pipe is straightened after the diameter is expanded and conveyed. The patent number of the invention is CN201210171538.X, China issued patent discloses an on-line straightening device for expanding a steel pipe, which comprises a base, a door type frame, a clamping beam, a jack and a servo motor … ….
Disclosure of Invention
The invention provides an on-line steel pipe expanding straightening device, and aims to solve the problem that the bends of steel pipes in all directions cannot be effectively straightened when the steel pipes subjected to expanding are straightened by adopting a position fixing clamping beam in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an online coalignment of steel pipe hole enlargement, includes the base, still includes:
the two supporting racks are used for forming a supporting effect on a mechanism connected to the two supporting racks, and the two supporting racks are symmetrically connected to the base in a sliding mode along the horizontal direction;
the straightening mechanism is used for forming a straightening effect on the steel pipe subjected to online diameter expansion and comprises an annular structure, a hydraulic structure, a clamping structure and a controller, wherein,
the ring structure comprises semi-ring sliding frames and a driving motor, the two semi-ring sliding frames are respectively connected on two supporting racks in a sliding way and are mutually connected to form a ring frame, the driving motor is fixedly connected on the supporting racks, the output end of the driving motor is connected with the ring frame and drives the ring frame to rotate,
the hydraulic structure comprises a hydraulic machine and a communicating pipe, the hydraulic machine is fixedly connected in the base, the output end of the hydraulic machine is communicated with the two communicating pipes, the two communicating pipes are fixedly connected on the semi-ring sliding frame and are connected with the clamping structure,
the clamping structure comprises a jack and clamping blocks, the jack is symmetrically and fixedly connected to the two semi-ring sliding frames, the input end of the jack is communicated with one end of the communicating pipe far away from the hydraulic press, the output end of the jack is fixedly connected with the clamping blocks, one end of the clamping blocks far away from the jack is abutted against the outer peripheral side of the steel pipe to be processed,
the controller is arranged on the base, is electrically connected with the driving motor and the hydraulic machine, and controls the working states of the driving motor and the hydraulic machine.
Preferably, the supporting frame is higher than the circle center of the annular frame, and the included angle between the line of the highest position and the circle center of the annular frame in the horizontal direction is less than 45 degrees, so that the two supporting frames can form an effective supporting effect on the annular frame, and the two supporting frames can slide against each other and are connected with a limiting bolt in the vertical direction between the supporting frame and the base, and the limiting bolt can form a limiting effect in the sliding direction of the supporting frame, so that the supporting stability of the two supporting frames can be kept.
Preferably, an annular sliding groove is formed in the support rack, the semi-ring sliding frames are coaxially and rotatably connected in the annular sliding groove, the top and the bottom of each semi-ring sliding frame are fixedly connected with flange plates, connecting bolts are fixedly connected between the flange plates at the top and the bottom of each semi-ring sliding frame, the annular frame formed by the two semi-ring sliding frames concentrically rotates in the annular sliding groove, the position of a connecting part on the annular frame can be changed conveniently, and the matching effect can be formed on the bending of different positions of the steel pipe conveniently.
Preferably, the outer circumferential sides of the two semi-ring carriages forming the annular frame are coaxially and fixedly connected with outer gear rings, the output end of the driving motor is coaxially and fixedly connected with a driving gear, the driving gear is meshed with the outer gear rings, and the driving motor works to enable the driving gear to rotate, so that the outer gear rings rotate to drive the annular frame to rotate.
Preferably, the output end of the hydraulic machine is communicated with a three-way pipe, the three-way pipe is fixedly connected to the base, two ends of the three-way pipe, far away from the hydraulic machine, are communicated with inferior ring pipelines, the two inferior ring pipelines and the communicating pipe coaxially slide in a sealing mode, the hydraulic machine works, the output pressure equal to the output end of each communicating pipe is kept through the hydraulic characteristic of a hydraulic medium, and the straightening effect of the steel pipe is guaranteed.
Preferably, the communicating pipe is in a minor arc shape, the minor ring pipeline and the communicating pipe communicated with the minor ring pipeline jointly form an arc, the central angle corresponding to the minimum arc length is larger than 90 degrees, the central angle corresponding to the maximum arc length is larger than 180 degrees, the communicating pipe is favorable for moving along with the movement of the clamping structure connected with the output end of the communicating pipe, the sealed communicating effect of the communicating pipe is kept, and the hydraulic transmitting effect of the communicating pipe is ensured.
Preferably, install the valve in the tee bend, control the circulation of hydraulic medium, and install the level gauge, conveniently detect the liquid level when hydraulic medium flows back the three-way pipe, avoid hydraulic medium to remain in communicating pipe and inferior ring pipeline, wherein inferior ring pipeline seals to insert in the tee bend after moving along with the semi-ring balladeur train, and communicates through sealing flange and three-way pipe, makes things convenient for the connection and the dismantlement of the two, does benefit to follow-up maintenance.
Preferably, the grip block includes connecting block and arc piece, connecting block fixed connection is on the jack output, jack one end fixedly connected with arc piece is kept away from to the connecting block, the arc piece is close to wait to process steel pipe one side and is arc and arc camber equal to wait to process the steel pipe and predetermine the periphery side camber, sets up the arc piece of a plurality of curvatures to the steel pipe of different diameters can the adaptation.
Preferably, the connecting block is kept away from the jack and is gone up the spacing arch of fixedly connected with in the one side, the arc piece is close to and has seted up spacing recess in the connecting block one side, spacing arch and spacing recess clearance fit, fixedly connected with fixing bolt between arc piece and the connecting block improve the directionality of being connected of arc piece and connecting block, guarantee that its direction is aimed at all times and is waited to process the steel pipe axle center.
Preferably, the controller is electrically connected with a plurality of bending detectors, the bending detectors adopt the prior art and detect the bending direction and the bending degree of the steel pipe after being expanded, the bending detectors are uniformly distributed on the periphery of the steel pipe after being expanded to detect different positions of the steel pipe, the controller receives detection signals of the bending detectors, controls the working states of the driving motor and the hydraulic machine, receives output signals of the liquid level device after straightening, controls the hydraulic machine and the driving motor to recover to the initial state, and finishes straightening operation of the steel pipe.
Compared with the prior art, the invention has the following beneficial effects:
1. before straightening the steel pipe after diameter expansion, the invention forms the limit in the sliding direction by the limit bolt to the two support frames which are abutted by sliding together, and the support frames are higher than the circle center of the annular frame, and the included angle of the connecting line of the highest position and the circle center of the annular frame in the horizontal direction is less than 45 degrees, thus being beneficial to the annular frame concentrically connected on the two support frames to form the effective support effect.
2. The invention uniformly arranges a plurality of bending detectors on the periphery of the steel pipe after expanding, so as to comprehensively detect the bending direction and the bending degree of the steel pipe, the controller receives detection signals of the bending detectors and controls the driving motor to work, the output end of the driving motor drives the annular frame to rotate through the driving gear and the outer gear ring, so that the clamping structure on the annular frame rotates to the bending direction of the steel pipe, and the targeted straightening operation is formed, thereby improving the straightening accuracy and efficiency, and forming the real-time straightening operation when the steel pipe is expanded to form the bending in different directions, and improving the straightening effect of the steel pipe.
3. The hydraulic machine outputs working pressure to the jacks, outputs hydraulic medium into the three-way pipe, inputs the hydraulic medium into the two communicating pipes through the two inferior ring pipelines, and the communicating pipes slide in the inferior ring pipelines, so that the movement of the jacks caused by the rotation of the annular frame is adapted.
4. When the steel pipes with different diameters are straightened, the arc-shaped blocks with different curvatures in the clamping blocks are replaced, so that the hydraulic machine can be adapted to the pipeline, the extrusion process of the jack is controlled by correspondingly controlling the hydraulic machine, and the steel pipes with different diameters can be conveniently straightened adaptively.
Drawings
FIG. 1 is a schematic structural view of an on-line steel pipe diameter-expanding straightening device provided by the invention;
FIG. 2 is a schematic view of an annular structure of the steel tube diameter-expanding online straightening device provided by the invention;
FIG. 3 is a schematic view of a hydraulic structure of an on-line steel pipe diameter-expanding straightening device provided by the invention;
fig. 4 is a schematic view of a clamping structure of the steel tube diameter-expanding online straightening device provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an online straightener of steel pipe hole enlargement includes base 1, still includes:
two support frames 2 for mechanism formation supporting effect to connecting above that, two support frames 2 along horizontal direction symmetry sliding connection on base 1, two support frames 2 are supported and are leaned on back and base 1 between being connected with spacing bolt in vertical direction sliding each other, lean on the spacing effect that the back formed the slip side after the two slides, avoid the two to appear removing.
The straightening mechanism 3 is used for forming a straightening effect on the steel pipe subjected to online diameter expansion, and the straightening mechanism 3 comprises an annular structure 4, a hydraulic structure 5, a clamping structure 6 and a controller 7, wherein the annular structure 4 comprises a semi-ring sliding frame 41 and a driving motor 42.
The supporting frame 2 is provided with an annular sliding groove, the half ring sliding frames 41 are coaxially connected in the annular sliding groove in a rotating mode, the top portions and the bottom portions of the two half ring sliding frames 41 are fixedly connected with flange plates 412, connecting bolts 413 are fixedly connected between the flange plates 412 at the top portions and the bottom portions of the two half ring sliding frames 41, and the two half ring sliding frames 41 are mutually connected to form an annular frame, so that the annular frame can coaxially rotate in the annular sliding groove.
The supporting machine frame 2 is higher than the circle center of the annular frame, and the included angle between the connecting line of the highest position and the circle center of the annular frame in the horizontal direction is less than 45 degrees, so that the two supporting machine frames 2 are favorable for forming an effective supporting effect on the annular frame.
On driving motor 42 fixed connection supported frame 2, constitute two semi-ring balladeur train 41 periphery sides of annular frame and all coaxial fixedly connected with outer ring gear 411, the coaxial fixedly connected with drive gear 421 of driving motor 42 output, drive gear 421 and outer ring gear 411 intermeshing, driving motor 42 works, its output passes through drive gear 421 and outer ring gear 411 drive annular frame and rotates to do benefit to and all form the alignment effect to the not equidirectional bending of the steel pipe of processing instead.
The hydraulic structure 5 comprises a hydraulic machine 51 and a communicating pipe 52, the hydraulic machine 51 is fixedly connected in the base 1, the output end of the hydraulic machine 51 is communicated with a three-way pipe 511, the three-way pipe 511 is fixedly connected on the base 1 and is far away from two ends of the hydraulic machine 51, the two ends of the two inferior ring pipes 512 are communicated with the inferior ring pipes 512, the two inferior ring pipes 512 are in coaxial sealing sliding with the communicating pipe 52, the two communicating pipes 52 are fixedly connected on the semi-ring carriage 41 and are connected with the clamping structures 6, hydraulic medium is input into the two communicating pipes 52 through the three-way pipe 511 and the two inferior ring pipes 512 when the hydraulic machine 51 works, the pressure transmission characteristic of the hydraulic medium is utilized, the same pressure is ensured.
The communicating pipe 52 is in a minor arc shape, the minor loop pipeline 512 and the communicating pipe 52 communicated with the minor loop pipeline jointly form an arc, the central angle corresponding to the minimum arc length is larger than 90 degrees, and the central angle corresponding to the maximum arc length is larger than 180 degrees, so that the communicating pipe 52 can conveniently rotate along with the annular frame and still keep effective pressure transmission effect at the angle.
The three-way pipe 511 is internally provided with a valve for controlling the circulation of the hydraulic medium output by the hydraulic machine 51, and is provided with a liquid level device, so that the hydraulic medium is conveniently prevented from remaining in the inferior ring pipeline 512 and the communicating pipe 52 when the hydraulic machine 51 does not work, wherein the inferior ring pipeline 512 is inserted into the three-way pipe 511 in a sealing way after moving along with the semi-ring carriage 41, and is communicated with the three-way pipe 511 through a sealing flange, the three-way pipe 511 and the inferior ring pipeline 512 are sealed and fixed, and can be mutually detached and separated, and the maintenance is easy.
The clamping structure 6 comprises a jack 61 and a clamping block 62, the two jacks 61 are symmetrically and fixedly connected to the two semi-ring sliding frames 41, the input end of the clamping structure is communicated with the end, far away from the hydraulic machine 51, of the communicating pipe 52, the output end of the clamping structure is fixedly connected with the clamping block 62, one end, far away from the jack 61, of the clamping block 62 abuts against the outer periphery of the steel pipe to be machined, the jack 61 receives the output pressure of the hydraulic machine 51, the clamping block 62 abuts against the outer periphery of the steel pipe, and therefore the steel pipe is straightened along.
The clamping block 62 comprises a connecting block 621 and an arc block 622, the connecting block 621 is fixedly connected to the output end of the jack 61, the connecting block 621 is far away from the arc block 622 fixedly connected to one end of the jack 61, the arc block 622 is close to one side of the steel pipe to be processed, is arc-shaped and has arc curvature equal to the curvature of the outer peripheral side of the steel pipe to be processed, the arc block 622 with multiple curvatures is arranged, and therefore the steel pipe can be adapted to steel pipes with different diameters, and meanwhile the arc block 622 can be easily replaced.
Connecting block 621 keeps away from jack 61 and goes up spacing arch 6211 of fixedly connected with in the one side, and arc piece 622 has been close to and has seted up spacing recess 6221 in the connecting block 621 one side, and spacing arch 6211 and spacing recess 6221 clearance fit make arc piece 622 and connecting block 621 direction of connection obtain guaranteeing, and fixedly connected with fixing bolt 623 forms fixed effect to the two between arc piece 622 and the connecting block 621.
The controller 7 is mounted on the base 1, is not marked in the figure, is electrically connected with the driving motor 42 and the hydraulic machine 51, controls the working states of the driving motor 42 and the hydraulic machine 51, and is electrically connected with a plurality of bending detectors, the bending detectors adopt the prior art and detect the bending direction and the bending degree of the steel pipe after diameter expansion, and the bending detectors are uniformly distributed on the periphery of the steel pipe after diameter expansion, so that the detection effect of bending the steel pipe in multiple directions is favorably realized.
The controller 7 receives the detection signals of the plurality of bending detectors, controls the driving motor 42 and the hydraulic machine 51 to work, receives the output signal of the liquid level gauge after the straightening is finished, controls the hydraulic machine 51 and the driving motor 42 to return to the initial state, drives the motor 42 to rotate the clamping structure 6 to the direction corresponding to the bending, and the hydraulic machine 51 enables the clamping structure 6 to form the straightening effect on the steel pipe in the direction.
When the steel pipe after diameter expansion is straightened, the two support frames 2 are controlled to slide and abut against each other, and the limit bolts limit the support frames 2 in the sliding direction, at the moment, the two semi-ring sliding frames 41 on the support frames 2 abut against each other, and the flange plates 412 positioned at the top and the bottom of the two semi-ring sliding frames 41 are fixed through the fixedly connected connecting bolts 413, so that the two semi-ring sliding frames 41 can be fixed to form an annular frame which is concentric with the steel pipe;
after the steel pipe is expanded, the steel pipe bending direction and the bending degree are detected by a plurality of bending detectors which are uniformly distributed on the periphery of the expanded steel pipe, a controller 7 receives detection signals of the plurality of bending detectors and controls a driving motor 42 to work, the output end of the driving motor 42 drives an annular frame to rotate through a driving gear 421 and an outer gear ring 411, so that a clamping structure 6 on the annular frame rotates to the bending direction of the steel pipe, a targeted straightening operation is formed, and the straightening accuracy and efficiency are improved;
the controller 7 then controls the hydraulic machine 51 to work, controls the valves in the three-way pipe 511 to be conducted, inputs hydraulic media into the two communicating pipes 52 through the three-way pipe 511 and the two inferior ring pipelines 512, and utilizes the pressure transmission characteristic of the hydraulic media, so that the same pressure is ensured to be output to the plurality of jacks 61, the extrusion processes of the steel pipes by the clamping blocks 62 driven by the jacks 61 are ensured to be consistent, and the straightening effect of the steel pipes is further improved;
after straightening the steel pipe after expanding the diameter, the controller 7 receives the output signal of the liquid level device, controls the valve to close after the working hydraulic medium in the communicating pipe 52 and the inferior ring pipeline 512 returns to the three-way pipe 511, and controls the hydraulic machine 51 and the driving motor 42 to recover the initial state to finish the straightening work;
when steel pipes with different diameters are straightened, the arc blocks 622 with different curvatures in the clamping blocks 62 are replaced, so that the hydraulic machine 51 can be adapted to the pipeline, the extrusion process of the jack 61 is correspondingly controlled, and the steel pipes with different diameters can be conveniently straightened.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides an online coalignment of steel pipe hole enlargement, includes base (1), its characterized in that still includes:
the two supporting racks (2) are used for forming a supporting effect on a mechanism connected to the two supporting racks, and the two supporting racks (2) are symmetrically connected to the base (1) in a sliding mode along the horizontal direction;
the straightening mechanism (3) is used for forming a straightening effect on the steel pipe subjected to online diameter expansion, the straightening mechanism (3) comprises an annular structure (4), a hydraulic structure (5), a clamping structure (6) and a controller (7), wherein,
the ring-shaped structure (4) comprises semi-ring sliding frames (41) and a driving motor (42), the two semi-ring sliding frames (41) are respectively connected on the two supporting racks (2) in a sliding mode and are mutually connected to form a ring-shaped frame, the driving motor (42) is fixedly connected on the supporting racks (2), the output end of the driving motor (42) is connected with the ring-shaped frame and drives the ring-shaped frame to rotate,
the hydraulic structure (5) comprises a hydraulic machine (51) and communicating pipes (52), the hydraulic machine (51) is fixedly connected in the base (1), the output end of the hydraulic machine is communicated with the two communicating pipes (52), the two communicating pipes (52) are fixedly connected on the semi-ring sliding frame (41) and are connected with the clamping structure (6),
the clamping structure (6) comprises jacks (61) and clamping blocks (62), the two jacks (61) are symmetrically and fixedly connected to the two semi-ring carriages (41), the input end of the jacks is communicated with one end, far away from the hydraulic machine (51), of the communicating pipe (52), the output end of the jacks is fixedly connected with the clamping blocks (62), one end, far away from the jacks (61), of each clamping block (62) abuts against the outer periphery of the steel pipe to be processed,
the controller (7) is arranged on the base (1), is electrically connected with the driving motor (42) and the hydraulic machine (51), and controls the working states of the driving motor and the hydraulic machine.
2. The steel pipe diameter-expanding online straightening device according to claim 1, characterized in that the supporting frames (2) are higher than the circle center of the annular frame, the included angle between the connecting line of the highest position and the circle center of the annular frame in the horizontal direction is less than 45 degrees, and a limit bolt is connected between the two supporting frames (2) and the base (1) in the vertical direction after the two supporting frames are mutually abutted in a sliding manner.
3. The steel pipe diameter-expanding online straightening device according to claim 1, wherein an annular sliding groove is formed in the support frame (2), the half-ring carriages (41) are coaxially and rotatably connected in the annular sliding groove, flanges (412) are fixedly connected to the top and the bottom of each of the two half-ring carriages (41), and a connecting bolt (413) is fixedly connected between the flanges (412) positioned at the top and the bottom of each of the two half-ring carriages (41).
4. The steel pipe expanding online straightening device according to claim 1, characterized in that outer gear rings (411) are coaxially and fixedly connected to the outer peripheral sides of the two semi-ring carriages (41) forming the annular frame, a driving gear (421) is coaxially and fixedly connected to the output end of the driving motor (42), and the driving gear (421) is meshed with the outer gear rings (411).
5. The steel tube diameter-expanding online straightening device according to claim 1, characterized in that the output end of the hydraulic machine (51) is communicated with a three-way pipe (511), the three-way pipe (511) is fixedly connected to the base (1) and two ends of the three-way pipe (511) far away from the hydraulic machine (51) are communicated with inferior ring pipelines (512), and the two inferior ring pipelines (512) and the communicating pipe (52) coaxially slide in a sealing manner.
6. The steel tube diameter-expanding online straightening device according to claim 5, wherein the communicating pipe (52) is in a minor arc shape, the minor loop pipe (512) and the communicating pipe (52) communicated with the minor loop pipe form an arc together, the central angle corresponding to the minimum arc length is larger than 90 degrees, and the central angle corresponding to the maximum arc length is larger than 180 degrees.
7. The steel pipe diameter-expanding online straightening device according to claim 6, characterized in that a valve is installed in the three-way pipe (511), and a liquid level gauge is installed, wherein the inferior ring pipe (512) is inserted into the three-way pipe (511) in a sealing manner after moving along with the half ring carriage (41), and is communicated with the three-way pipe (511) through a sealing flange.
8. The on-line straightening device for the expanded diameter of the steel pipe according to claim 1, wherein the clamping block (62) comprises a connecting block (621) and an arc-shaped block (622), the connecting block (621) is fixedly connected to the output end of the jack (61), one end, far away from the jack (61), of the connecting block (621) is fixedly connected with the arc-shaped block (622), one side, close to the steel pipe to be machined, of the arc-shaped block (622) is arc-shaped, and the curvature of the arc is equal to the curvature of the preset outer peripheral side of the steel pipe to be machined.
9. The online straightening device for the expanded diameter of the steel pipe according to claim 8, wherein a limiting protrusion (6211) is fixedly connected to one surface of the connecting block (621) far away from the jack (61), a limiting groove (6221) is formed in one surface of the arc-shaped block (622) close to the connecting block (621), the limiting protrusion (6211) is in clearance fit with the limiting groove (6221), and a fixing bolt (623) is fixedly connected between the arc-shaped block (622) and the connecting block (621).
10. The steel pipe diameter-expanding online straightening device according to claim 7, wherein the controller (7) is electrically connected with a plurality of bending detectors, the bending detectors adopt the prior art and detect the bending direction and the bending degree of the steel pipe after diameter expansion, the bending detectors are uniformly distributed on the periphery of the steel pipe after diameter expansion, the controller (7) receives detection signals of the bending detectors, controls the working states of the driving motor (42) and the hydraulic machine (51), receives output signals of the liquid level gauge after straightening is completed, and controls the hydraulic machine (51) and the driving motor (42) to restore to the initial state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110536287.XA CN112958709B (en) | 2021-05-17 | 2021-05-17 | Online straightening device for expanding steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110536287.XA CN112958709B (en) | 2021-05-17 | 2021-05-17 | Online straightening device for expanding steel pipe |
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| CN112958709A true CN112958709A (en) | 2021-06-15 |
| CN112958709B CN112958709B (en) | 2021-07-20 |
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Cited By (1)
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| CN117483459A (en) * | 2023-12-29 | 2024-02-02 | 河北绿峰环保科技有限公司 | Die casting equipment and die casting process for producing rare earth alloy wires |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117483459A (en) * | 2023-12-29 | 2024-02-02 | 河北绿峰环保科技有限公司 | Die casting equipment and die casting process for producing rare earth alloy wires |
| CN117483459B (en) * | 2023-12-29 | 2024-03-05 | 河北绿峰环保科技有限公司 | Die casting equipment and die casting process for producing rare earth alloy wires |
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| CN112958709B (en) | 2021-07-20 |
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