A rolling mill universal shaft sleeve anti-drop device

Abstract

The present invention belongs to the technical field of rolling mills, and in particular to a novel anti-falling device for the universal shaft sleeve of a rolling mill. Aiming at the problem in the prior art that the universal shaft of the rolling mill is easily detached from the rolling mill due to the vibration of the rolling mill when working for a long time, which will cause the equipment to be unable to operate normally, affect the production efficiency, and also cause hidden dangers to the equipment and personal safety, the following scheme is proposed, which includes a rolling mill body and a universal shaft, the rear end of the sleeve is connected to the front side of the rolling mill body, the front end of the sleeve is fixedly connected to the rear end of the universal shaft, an annular groove is provided on the sleeve, and two L-shaped brackets are fixedly connected to the front side of the rolling mill body. The present invention realizes the anti-falling operation between the sleeve on the universal shaft and the rolling mill body through a simple structure, thereby improving the stability of equipment operation and the working efficiency, and is easy to operate and has strong safety and practicality.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mills, and in particular to a rolling mill universal shaft sleeve anti-dropping device. Background Art

[0002] A rolling mill is a device that realizes the metal rolling process. It generally refers to the equipment that completes the entire process of rolling production. According to the number of rollers, rolling mills can be divided into two-roller, four-roller, six-roller, eight-roller, twelve-roller, eighteen-roller, etc.; according to the arrangement of rollers, they can be divided into "L" type, "T" type, "F" type, "Z" type and "S" type. Ordinary rolling mills are mainly composed of rollers, frames, roller gap adjustment devices, roller temperature adjustment devices, transmission devices, lubrication systems, control systems and roll removal devices.

[0003] During the production of high-speed wire rods, the universal shaft of the rolling mill is prone to detach from the rolling mill due to the vibration of the rolling mill when the universal shaft is working for a long time, which will cause the equipment to fail to operate normally, affect production efficiency, and cause hidden dangers to equipment and personal safety. To this end, we propose a rolling mill universal shaft sleeve anti-detachment device. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that when the universal joint shaft of the rolling mill works for a long time, due to the vibration of the rolling mill, the universal joint shaft sleeve is easily detached from the rolling mill, which will cause the equipment to fail to operate normally, affect production efficiency, and also cause hidden dangers to equipment and personal safety. A rolling mill universal joint shaft sleeve anti-falling device is proposed to solve the shortcomings of the prior art that when the universal joint shaft of the rolling mill works for a long time, due to the vibration of the rolling mill, the universal joint shaft sleeve is easily detached from the rolling mill, which will cause the equipment to fail to operate normally, affect production efficiency, and also cause hidden dangers to equipment and personal safety.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rolling mill universal shaft sleeve anti-dropping device comprises a rolling mill body and a universal shaft, the rear end of the sleeve is connected to the front side of the rolling mill body, the front end of the sleeve is fixedly connected to the rear end of the universal shaft, an annular groove is provided on the sleeve, the front side of the rolling mill body is fixedly connected to two L-shaped brackets, the front sides of the two L-shaped brackets are respectively provided with a first clamp and a second clamp, the first clamp and the second clamp are both provided with rectangular screw holes, the number of the rectangular screw holes is six, bolts are provided in the rectangular screw holes, the bolts are threadedly connected to the L-shaped brackets, the first clamp and the second clamp are both extended to the inside of the annular groove on the side close to each other, a positioning pin and a latch are fixedly connected to the left side of the first clamp, an adapting groove is provided at the right end of the second clamp, the left end of the positioning pin is movably connected in the adapting groove, a rectangular groove is provided at the right end of the second clamp, the left end of the latch is movably connected in the rectangular groove, a positioning mechanism is provided on the top of the second clamp, and the positioning mechanism cooperates with the latch.

[0007] Preferably, a slide plate is slidably connected inside the adapter groove, the left end of the positioning pin contacts the right side of the slide plate, and the left side of the slide plate is elastically connected to the left inner wall of the adapter groove. By providing the slide plate, the coordinated transmission between the compression spring and the positioning pin can be facilitated.

[0008] Preferably, a compression spring is fixedly connected to the left side of the slide plate, and the left end of the compression spring is fixedly connected to the left inner wall of the adapter slot. The compression spring can assist in the disengagement of the positioning pin from the adapter slot.

[0009] Preferably, the positioning mechanism includes a limit rod, a sleeve and two sliding rods, the sleeve is slidably mounted on the limit rod, the bottom end of the sleeve is fixedly connected to the top of the second clamp, the latch is provided with a socket, the bottom end of the limit rod passes through the top of the second clamp and extends into the socket, the ends of the two sliding rods close to each other are respectively fixedly connected to the left and right sides of the limit rod, the left inner wall and the right inner wall of the sleeve are provided with sliding grooves, the ends of the two sliding rods far away from each other are respectively slidably connected in the two sliding grooves, and the first clamp and the second clamp can be connected and limited by the plug-in cooperation between the limit rod and the socket.

[0010] Preferably, a ring is rotatably provided on the limit rod, a fixing plate is fixedly connected to the left side of the ring, the bottom of the fixing plate is elastically connected to the top of the second clamp, and the connection between the reset spring and the limit rod can be facilitated by providing the fixing plate and the ring.

[0011] Preferably, a reset spring is fixedly connected to the bottom of the fixing plate, and the bottom end of the reset spring is fixedly connected to the top of the second clamp. By providing the reset spring, the limit rod can be driven to move downward and reset.

[0012] Beneficial effects: The first clamp and the second clamp can be connected conveniently by plugging the positioning pin into the adapter groove, and the connection between the first clamp and the second clamp can be more stable by plugging and limiting the bottom end of the limiting rod with the plug hole, and the installation position between the first clamp and the second clamp and the two L-shaped brackets can be adjusted more conveniently;

[0013] By setting the rectangular screw hole to a rectangle, the first clamp and the second clamp can be used in conjunction with sleeves of different roller diameters, and the positions of the first clamp and the second clamp can be adjusted to prevent sharp friction between the first clamp and the second clamp and the universal shaft. Then, by setting a clamping limit between the first clamp and the second clamp and the annular groove on the sleeve, it is possible to prevent the universal shaft from being separated from the rolling mill body when rotating, so that the equipment can be operated normally and stably, the work efficiency is improved, the operation is convenient, and the safety of the equipment and personnel at work is also improved.

[0014] The present invention realizes the anti-dropping operation between the sleeve on the universal shaft and the rolling mill body through a simple structure, improves the stability of equipment operation, improves work efficiency, is easy to operate, and has strong safety and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A top view of the structure of a rolling mill universal shaft sleeve anti-falling device proposed by the present invention;

[0016] Figure 2 The invention provides an attachment for a rolling mill universal shaft sleeve anti-dropping device. Figure 1 Schematic diagram of the structure of part A;

[0017] Figure 3 A main cross-sectional view of the connection structure of a first clamp and a second clamp of a rolling mill universal shaft sleeve anti-dropping device proposed by the present invention;

[0018] Figure 4 The invention provides an attachment for a rolling mill universal shaft sleeve anti-dropping device. Figure 3 Schematic diagram of the structure of part B;

[0019] Figure 5 This is a three-dimensional structural diagram of the first clamp, rectangular screw hole, positioning pin, latch pin and circular hole of a rolling mill universal shaft sleeve anti-dropping device proposed by the present invention.

[0020] In the figure: 1 rolling mill body, 2 return spring, 3 sleeve, 4 universal shaft, 5 L-shaped bracket, 6 first clamp, 7 second clamp, 8 rectangular screw hole, 9 bolt, 10 annular groove, 11 positioning pin, 12 latch, 13 round hole, 14 adapter groove, 15 slide plate, 16 compression spring, 17 rectangular groove, 18 limit rod, 19 sleeve, 20 slide groove, 21 slide rod, 22 collar, 23 fixing plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-5A rolling mill universal shaft sleeve anti-dropping device comprises a rolling mill body 1 and a universal shaft 4, the rear end of the sleeve 3 is connected to the front side of the rolling mill body 1, the front end of the sleeve 3 is fixedly connected to the rear end of the universal shaft 4, an annular groove 10 is provided on the sleeve 3, the annular groove 10 can facilitate the first clamp 6 and the second clamp 7 to limit the sleeve 3, the front side of the rolling mill body 1 is fixedly connected with two L-shaped brackets 5, the L-shaped brackets 5 can support and install the first clamp 6 and the second clamp 7, the front sides of the two L-shaped brackets 5 are respectively provided with the first clamp 6 and the second clamp Hoop 7, the first hoop 6 and the second hoop 7 are both provided with rectangular screw holes 8, the rectangular screw holes 8 can facilitate the position adjustment of the first hoop 6 and the second hoop 7, so that the first hoop 6 and the second hoop 7 can be adapted to the sleeve 3 of different roller diameters for limiting, the number of rectangular screw holes 8 is six, and bolts 9 are arranged in the rectangular screw holes 8, and the bolts 9 are threadedly connected to the L-shaped bracket 5, and the sides of the first hoop 6 and the second hoop 7 that are close to each other extend to the inside of the annular groove 10, and the left side of the first hoop 6 is fixedly connected with a positioning pin 11 and a latch 12, an adapting groove 14 is provided at the right end of the second hoop 7, and the left end of the positioning pin 11 is movably connected in the adapting groove 14. Through the plug-in cooperation between the positioning pin 11 and the adapting groove 14, the first hoop 6 and the second hoop 7 can be easily installed. A rectangular groove 17 is provided at the right end of the second hoop 7, and the left end of the latch 12 is movably connected in the rectangular groove 17. A positioning mechanism is provided on the top of the second hoop 7, and the positioning mechanism cooperates with the latch 12. Through the cooperation between the latch 12 and the positioning mechanism, the first hoop 6 and the second hoop 7 can be easily installed. The connection between them is more stable; the adapter groove 14 is slidably connected with a slide plate 15 inside, the left end of the positioning pin 11 contacts the right side of the slide plate 15, and the left side of the slide plate 15 is elastically connected to the left inner wall of the adapter groove 14. By setting the slide plate 15, it is convenient for the compression spring 16 to cooperate with the positioning pin 11 for transmission; the left side of the slide plate 15 is fixedly connected with a compression spring 16, and the left end of the compression spring 16 is fixedly connected to the left inner wall of the adapter groove 14. By setting the compression spring 16, the positioning pin 11 and the adapter groove 14 can be assisted to disengage from the plug-in;

[0023] The positioning mechanism includes a limit rod 18, a sleeve 19 and two slide rods 21. The sleeve 19 is slidably sleeved on the limit rod 18. The bottom end of the sleeve 19 is fixedly connected to the top of the second hoop 7. The latch 12 is provided with a socket 13. The bottom end of the limit rod 18 passes through the top of the second hoop 7 and extends into the socket 13. The ends of the two slide rods 21 close to each other are fixedly connected to the left and right sides of the limit rod 18 respectively. The left inner wall and the right inner wall of the sleeve 19 are provided with a slide groove 20. The movement of the limit rod 18 can be made more stable through the sliding limit cooperation between the slide rod 21 and the slide groove 20. The ends of the two slide rods 21 away from each other are respectively slidably connected. Connected in the two slide grooves 20, the first clamp 6 and the second clamp 7 can be connected and limited by the plug-in cooperation between the limit rod 21 and the socket 13; a ring 22 is rotatably provided on the limit rod 18, and a fixing plate 23 is fixedly connected to the left side of the ring 22. The bottom of the fixing plate 23 is elastically connected to the top of the second clamp 7. The connection between the reset spring 2 and the limit rod 18 can be facilitated by setting the fixing plate 23 and the ring 22; the bottom of the fixing plate 23 is fixedly connected to the reset spring 2, and the bottom end of the reset spring 2 is fixedly connected to the top of the second clamp 7. The reset spring 2 can be driven to move downward and reset by setting the reset spring 2.

[0024] Working principle: When in use, first lift the limit rod 18 upwards, and then when the two slide bars 21 are out of contact with the slide groove 20, rotate the limit rod 18. At this time, the contact between the two slide bars 21 and the top of the sleeve 19 can fix the position of the limit rod 18. At this time, the bottom end of the limit rod 18 will also move upwards, and will not affect the movement of the latch 12 into the rectangular groove 17. At this time, insert the ends of the first hoop 6 and the second hoop 7 that are close to each other into the annular groove 10. When the first hoop 6 and the second hoop 7 move into the annular groove 10, first The positioning pin 11 is inserted into the interior of the adapter groove 14. Through the plugging between the positioning pin 11 and the adapter groove 14, the first clamp 6 and the second clamp 7 can be connected. Then the latch 12 is inserted into the interior of the rectangular groove 17. When the left end of the latch 12 contacts the left inner wall of the rectangular groove 17, the limit rod 18 is rotated in the opposite direction and the two slide bars 21 correspond to the two slide grooves 20. At this time, the elastic reset characteristic of the reset spring 2 will drive the limit rod 18 to move downward, and the two slide bars 21 will enter the interior of the two slide grooves 20 and slide up and down. At this time, the bottom end of the limit rod 18 will be inserted into the Insert the inside of the insertion hole 13, here, through the plug-in limit between the bottom end of the limit rod 18 and the insertion hole 13, the connection between the first clamp 6 and the second clamp 7 can be made more stable, and it can be more convenient to adjust the installation position between the first clamp 6 and the second clamp 7 and the two L-shaped brackets 5. After the first clamp 6 and the second clamp 7 are connected, the bolt 9 is inserted into the inside of the rectangular screw hole 8 and the first clamp 6 and the second clamp 7 are fixedly installed on the two L-shaped brackets 5 respectively. At this time, the fixed installation of the first clamp 6 and the second clamp 7 is completed. Here, the rectangular The screw hole 8 is set to be rectangular so that the first clamp 6 and the second clamp 7 can be used with sleeves 3 with different roller diameters. The positions of the first clamp 6 and the second clamp 7 can also be adjusted to prevent sharp friction between the first clamp 6 and the second clamp 7 and the universal shaft 4. Then, by setting a clamping limit between the first clamp 6 and the second clamp 7 and the annular groove 10 on the sleeve 3, it is possible to prevent the universal shaft 4 from being separated from the rolling mill body 1 when rotating, so that the equipment can be operated normally and stably, the work efficiency is improved, the operation is convenient, and the safety of the equipment and personnel at work is also improved.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rolling mill universal shaft sleeve anti-dropping device, comprising a rolling mill body (1) and a universal shaft (4), characterized in that: The rear end of the sleeve (3) is connected to the front side of the rolling mill body (1), and the front end of the sleeve (3) is fixedly connected to the rear end of the universal shaft (4). The sleeve (3) is provided with an annular groove (10). The front side of the rolling mill body (1) is fixedly connected to two L-shaped brackets (5). The front sides of the two L-shaped brackets (5) are respectively provided with a first clamp (6) and a second clamp (7). The first clamp (6) and the second clamp (7) are both provided with rectangular screw holes (8). The number of the rectangular screw holes (8) is six. Bolts (9) are provided in the rectangular screw holes (8). The bolts (9) are threadedly connected to the L-shaped brackets. On the frame (5), the sides of the first clamp (6) and the second clamp (7) that are close to each other both extend to the inside of the annular groove (10), the left side of the first clamp (6) is fixedly connected with a positioning pin (11) and a latch pin (12), the right end of the second clamp (7) is provided with an adapting groove (14), the left end of the positioning pin (11) is movably connected in the adapting groove (14), the right end of the second clamp (7) is provided with a rectangular groove (17), the left end of the latch pin (12) is movably connected in the rectangular groove (17), and the top of the second clamp (7) is provided with a positioning mechanism, which cooperates with the latch pin (12); The adapting groove (14) is slidably connected to a slide plate (15), the left end of the positioning pin (11) is in contact with the right side of the slide plate (15), and the left side of the slide plate (15) is elastically connected to the left inner wall of the adapting groove (14); The positioning mechanism comprises a limit rod (18), a sleeve (19) and two slide rods (21), wherein the sleeve (19) is slidably sleeved on the limit rod (18), the bottom end of the sleeve (19) is fixedly connected to the top of the second clamp (7), the latch (12) is provided with a socket (13), the bottom end of the limit rod (18) passes through the top of the second clamp (7) and extends into the socket (13), the ends of the two slide rods (21) close to each other are respectively fixedly connected to the left and right sides of the limit rod (18), the left inner wall and the right inner wall of the sleeve (19) are both provided with slide grooves (20), and the ends of the two slide rods (21) away from each other are respectively slidably connected in the two slide grooves (20); A collar (22) is rotatably sleeved on the limiting rod (18), a fixing plate (23) is fixedly connected to the left side of the collar (22), and the bottom of the fixing plate (23) is elastically connected to the top of the second clamp (7).

2. The rolling mill universal shaft sleeve anti-dropping device according to claim 1, characterized in that: A compression spring (16) is fixedly connected to the left side of the slide plate (15), and a left end of the compression spring (16) is fixedly connected to the left inner wall of the adapter groove (14).

3. The rolling mill universal shaft sleeve anti-dropping device according to claim 1, characterized in that: A return spring (2) is fixedly connected to the bottom of the fixed plate (23), and the bottom end of the return spring (2) is fixedly connected to the top of the second clamp (7).

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