CN218036579U

CN218036579U - Cold pilger mill plug fracture detection device

Info

Publication number: CN218036579U
Application number: CN202221574337.XU
Authority: CN
Inventors: 何成斌; 陈永阳
Original assignee: Hangzhou Mingxiang Steel Pipe Co ltd
Current assignee: Hangzhou Mingxiang Steel Pipe Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-12-13
Anticipated expiration: 2032-06-22

Abstract

The utility model relates to the technical field of cold pilger mills, in particular to a cold pilger mill core rod fracture detection device, which comprises a frame and a discharge pipe arranged at one end of the frame; a plurality of groups of positioning mechanisms are arranged on the inner side of the discharge pipe along an annular array, each group of positioning mechanisms comprises a rotary mounting frame and a plurality of rollers, and the rollers are rotatably mounted on the rotary mounting frame; the elastic mechanisms are connected to the plurality of rotary mounting frames, the outer side of the discharge pipe is provided with a horn pipe, and the rack is fixedly provided with a linear driving mechanism A for driving the horn pipe to move; a plurality of detectors are arranged at the end part of the discharge pipe along an annular array; the end part of the discharge pipe is fixedly provided with a linear driving mechanism B, and an output shaft of the linear driving mechanism B is connected with a marking pen. The utility model discloses can be convenient for carry out spacing work to the steel pipe of multiple model size to can also mark the fracture position of plug, the practicality is strong.

Description

Cold pilger mill plug fracture detection device

Technical Field

The utility model relates to a cold pilger mill technical field especially relates to a cold pilger mill plug fracture detection device.

Background

At present, when a cold pilger mill is used for cold pilger rolling, the beginning end of a metal pipe during rolling is thicker and then gradually becomes thinner until the metal pipe becomes a forming pipe. In the rolling process, a metal pipe is forced to deform by strong rolling force, the core rod bears larger deformation pressure, and due to material fatigue limit or improper operation, core rod breakage accidents often occur, so that the quality of the formed metal pipe is influenced with light consequences, the rolling work is forced to be interrupted, and the damage to each part of the cold pilger mill is caused with heavy consequences.

Chinese patent with the publication number of authorizing CN216027078U discloses a machine plug fracture device for full-automatic cold pilger mill, including the discharging pipe, the discharging pipe sets up the right-hand member in the frame, the top of discharging pipe is provided with the metal ultrasonic flaw detector, the top fixedly connected with stand of discharging pipe right-hand member, the stand top is rotated and is connected with and rotates the seat, rotate on the seat through linking arm fixedly connected with mount pad, be provided with the mounting panel on the mount pad, sliding connection has the survey probe post on the mounting panel, the first electric telescopic handle of fixedly connected with on the mounting panel, the flexible end and the test probe post fixed connection of first electric telescopic handle, the top of discharging pipe articulates there is second electric telescopic handle, the flexible end of second electric telescopic handle is articulated mutually with the rotation seat.

The above patent still has the following defects in the practical operation process: 1. the steel pipe with a specific size can only be limited, so that the adaptability is low; 2. the operator cannot quickly locate the fracture location of the mandrel, thereby reducing the efficiency of the repair.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists among the background art, the utility model provides a cold pilger mill plug fracture detection device.

The technical scheme of the utility model: a cold pilger mill core rod fracture detection device comprises a stand and a discharge pipe arranged at one end of the stand; a plurality of groups of positioning mechanisms are arranged on the inner side of the discharge pipe along an annular array, each group of positioning mechanisms comprises a rotary mounting frame and a plurality of rollers, and the rollers are rotatably mounted on the rotary mounting frame; elastic mechanisms are connected to the plurality of rotary mounting frames respectively, each elastic mechanism comprises a guide rod A, a spring and a spherical block, the guide rods A are fixedly connected with the rotary mounting frames, the outer ends of the guide rods A movably penetrate through the discharging pipe and are connected with the spherical blocks, the springs are sleeved on the guide rods A, the two ends of each spring respectively abut against the spherical blocks and the outer wall of the discharging pipe, a horn tube is arranged on the outer side of the discharging pipe, the spherical blocks are in contact with the inner wall of the horn tube, and a linear driving mechanism A for driving the horn tube to move is fixedly mounted on the rack; a plurality of detectors are arranged at the end part of the discharge pipe along an annular array; a linear driving mechanism B is fixedly arranged at the end part of the discharge pipe, and an output shaft of the linear driving mechanism B is connected with a marking pen; the rack is provided with a controller.

Preferably, the rack is provided with an alarm, and the alarm is electrically connected with the controller.

Preferably, the number of the positioning mechanisms is not less than three.

Preferably, be connected with guide bar B on the rotation mounting frame, the discharging pipe is run through in guide bar B activity.

Preferably, the detector is a metal ultrasonic flaw detector.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:

1. control starts sharp actuating mechanism A work, thereby can drive the horn pipe and remove about, when drive horn pipe removes to the left side, the horn pipe inner wall begins to extrude spherical piece and removes to discharging pipe one side, thereby can drive a plurality of positioning mechanism and remove to the inboard center of discharging pipe simultaneously, can carry out positioning work to the less steel pipe of size of production from this, avoid taking place the dislocation, when drive horn pipe removes to the right side, under the effect of spring, a plurality of positioning mechanism remove to the inner wall of discharging pipe simultaneously, can realize fixing a position the great steel pipe of size from this, adaptability is stronger.

2. The steel pipe is discharged from the discharge pipe after being subjected to cold rolling, if the core rod is not fractured, the fractured core rod is not clamped in the steel pipe, the detector cannot detect the abnormity at the moment, if the core rod is fractured, the detector can detect the abnormity at the moment, meanwhile, the controller controls the linear driving mechanism B to work, and the linear driving mechanism B drives the marking pen to leave a mark on the steel pipe, so that an operator can conveniently and quickly find the fracture position of the core rod.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a side view of the tapping pipe of the present invention.

Reference numerals are as follows: 1. a frame; 2. a discharge pipe; 3. a steel pipe; 4. a flare tube; 5. a linear driving mechanism A; 6. a detector; 7. rotating the mounting rack; 8. a roller; 9. a guide rod A; 10. a spring; 11. a spherical block; 12. a guide rod B; 13. a linear driving mechanism B; 14. a marking pen; 15. a controller; 16. an alarm.

Detailed Description

Example one

As shown in fig. 1-2, the utility model provides a cold pilger mill core rod fracture detection device, which comprises a frame 1 and a discharge pipe 2 arranged at one end of the frame 1; a plurality of groups of positioning mechanisms are arranged on the inner side of the discharging pipe 2 along an annular array, the number of the positioning mechanisms is not less than three, each group of positioning mechanisms comprises a rotating mounting frame 7 and a plurality of rollers 8, and the rollers 8 are rotatably mounted on the rotating mounting frame 7; elastic mechanisms are connected to the plurality of rotary mounting frames 7 and comprise guide rods A9, springs 10 and spherical blocks 11, the guide rods A9 are fixedly connected with the rotary mounting frames 7, the outer ends of the guide rods A9 movably penetrate through the discharging pipes 2 and are connected with the spherical blocks 11, the springs 10 are sleeved on the guide rods A9, two ends of the springs 10 respectively abut against the outer walls of the spherical blocks 11 and the discharging pipes 2, the outer sides of the discharging pipes 2 are provided with the horn pipes 4, the plurality of spherical blocks 11 are in contact with the inner walls of the horn pipes 4, and a linear driving mechanism A5 for driving the horn pipes 4 to move is fixedly mounted on the rack 1; the rotary mounting frame 7 is connected with a guide rod B12, and the guide rod B12 movably penetrates through the discharge pipe 2; a plurality of detectors 6 are arranged at the end part of the discharge pipe 2 along an annular array, and the detectors 6 are metal ultrasonic flaw detectors; a linear driving mechanism B13 is fixedly arranged at the end part of the discharge pipe 2, and an output shaft of the linear driving mechanism B13 is connected with a marking pen 14; the frame 1 is provided with a controller 15.

Example two

As shown in fig. 1-2, the device for detecting the breakage of the core rod of the cold pilger mill provided by the present invention comprises a frame 1 and a discharge pipe 2 arranged at one end of the frame 1; a plurality of groups of positioning mechanisms are arranged on the inner side of the discharging pipe 2 along an annular array, the number of the positioning mechanisms is not less than three, each group of positioning mechanisms comprises a rotating mounting frame 7 and a plurality of rollers 8, and the rollers 8 are rotatably mounted on the rotating mounting frame 7; elastic mechanisms are connected to the plurality of rotary mounting frames 7 respectively, each elastic mechanism comprises a guide rod A9, a spring 10 and a spherical block 11, the guide rods A9 are fixedly connected with the rotary mounting frames 7, the outer ends of the guide rods A9 movably penetrate through the discharging pipes 2 and are connected with the spherical blocks 11, the springs 10 are sleeved on the guide rods A9, two ends of each spring 10 abut against the spherical blocks 11 and the outer walls of the discharging pipes 2 respectively, a horn pipe 4 is arranged on the outer side of each discharging pipe 2, the plurality of spherical blocks 11 are in contact with the inner wall of the horn pipe 4, and a linear driving mechanism A5 for driving the horn pipe 4 to move is fixedly mounted on the rack 1; the rotary mounting frame 7 is connected with a guide rod B12, and the guide rod B12 movably penetrates through the discharge pipe 2; a plurality of detectors 6 are arranged at the end part of the discharge pipe 2 along an annular array, and the detectors 6 are metal ultrasonic flaw detectors; a linear driving mechanism B13 is fixedly arranged at the end part of the discharge pipe 2, and an output shaft of the linear driving mechanism B13 is connected with a marking pen 14; the frame 1 is provided with a controller 15.

Install siren 16 on the frame 1, siren 16 and controller 15 electric connection, detect out unusually when detection instrument 6, the work of controller 15 control siren 16, thereby siren 16 can remind operating personnel in time to change the plug through sounding.

The utility model discloses a theory of operation and application method as follows: the linear driving mechanism A5 is controlled to be started to work, so that the flared tube 4 can be driven to move left and right, when the flared tube 4 is driven to move to the left side, the inner wall of the flared tube 4 starts to extrude the spherical block 11 to move to one side of the discharge tube 2, and therefore the plurality of positioning mechanisms can be driven to simultaneously move to the center of the inner side of the discharge tube 2, so that the produced steel tube 3 with a small size can be positioned, dislocation is avoided, when the flared tube 4 is driven to move to the right side, the plurality of positioning mechanisms simultaneously move to the inner wall of the discharge tube 2 under the action of the spring 10, and therefore the steel tube 3 with a large size can be positioned, and the adaptability is stronger; the steel pipe 3 is discharged from the discharging pipe 2 after being cold-rolled, if the core rod is not broken, the broken core rod is not clamped in the steel pipe 3, the detector 6 cannot detect abnormality at the moment, if the core rod is broken, the detector 6 can detect abnormality at the moment, meanwhile, the controller 15 controls the linear driving mechanism B13 and the alarm 16 to work, the linear driving mechanism B13 drives the marking pen 14 to leave marks on the steel pipe 3, and therefore an operator can find the broken position of the core rod quickly conveniently, and the alarm 16 can remind the operator of replacing the core rod in time by making sound.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. The device for detecting the breakage of the core rod of the cold pilger mill is characterized by comprising a rack (1) and a discharge pipe (2) arranged at one end of the rack (1); a plurality of groups of positioning mechanisms are arranged on the inner side of the discharging pipe (2) along an annular array, each group of positioning mechanisms comprises a rotary mounting frame (7) and a plurality of rollers (8), and the rollers (8) are rotatably mounted on the rotary mounting frame (7); elastic mechanisms are connected to the plurality of rotary mounting frames (7), each elastic mechanism comprises a guide rod A (9), springs (10) and spherical blocks (11), the guide rods A (9) are fixedly connected with the rotary mounting frames (7), the outer ends of the guide rods A (9) penetrate through the discharging pipes (2) in a movable mode and are connected with the spherical blocks (11), the springs (10) are sleeved on the guide rods A (9), the two ends of each spring (10) are abutted to the outer walls of the spherical blocks (11) and the outer walls of the discharging pipes (2) respectively, the outer sides of the discharging pipes (2) are provided with the horn pipes (4), the spherical blocks (11) are all in contact with the inner walls of the horn pipes (4), and linear driving mechanisms A (5) used for driving the horn pipes (4) to move are fixedly installed on the rack (1); a plurality of detectors (6) are arranged at the end part of the discharge pipe (2) along an annular array; a linear driving mechanism B (13) is fixedly arranged at the end part of the discharge pipe (2), and a marking pen (14) is connected to an output shaft of the linear driving mechanism B (13); the frame (1) is provided with a controller (15).

2. The cold pilger mill core rod breakage detection apparatus according to claim 1, characterized in that an alarm (16) is mounted on the stand (1), and the alarm (16) is electrically connected to the controller (15).

3. The cold pilger mill mandrel breakage detection device of claim 1 wherein the number of positioning mechanisms is no less than three.

4. The cold pilger mill mandrel breakage detection device of claim 1, characterized in that a guide bar B (12) is connected to the rotatable mounting frame (7), and the guide bar B (12) is movably inserted through the tapping pipe (2).

5. The cold pilger mill mandrel breakage detection device of claim 1, wherein the detector (6) is a metal ultrasonic flaw detector.