Roll changing platform positioning device for working roll of medium plate

Abstract

The utility model discloses a medium plate working roll changing platform positioning device which comprises a base, a bridge frame used for steel rolling is vertically arranged at the top of the base, threaded plates are vertically arranged at the tops of the two ends of the base in the width direction, and one-way screws are transversely inserted into the threaded plates in a threaded mode. The ends, away from the bridge frame, of the one-way screws are provided with transmission assemblies used for controlling the one-way screws to move, supporting frames are vertically and symmetrically arranged at the tops, close to the two ends of the threaded plate, of the top of the base, and the same two-way screw is transversely and rotationally inserted into the upper portions of the supporting frames on the adjacent sides. The two ends of the two-way screw are provided with positioning assemblies used for controlling the movement of the bridge. According to the utility model, the transmission assembly, the positioning assembly and the driving assembly are matched with one another, so that the position of the bridge can be quickly and accurately positioned, the positioning time is greatly shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medium and thick plate processing, in particular to a medium and thick plate working roll changing platform positioning device. Background Art

[0002] The working roll changing platform of the 3800 production line rolling mill consists of two sections of intermediate bridges, namely the front bridge and the rear bridge. The front bridge is close to the rolling mill and is a welded special structure. Flat rails and V-shaped rails are laid on each bridge, and the upper and lower working roll groups enter and exit the frame to complete the replacement operation. The track of the working roll changing push-pull cylinder walking wheel is also laid on the intermediate bridge. Each bridge of the intermediate bridge has 4 support points, and the 2 support points of the front bridge are supported on the bracket fixed on the rolling mill frame, and the 2 support points are fixed on the foundation bottom plate. The positioning of the front bridge is pin positioning + track end face positioning, which belongs to over-positioning: the two pins are positioned in the X, Y and Z directions, and the end face positioning with the fixed track in the frame is also Y-positioning. The pin positioning size is: hole ∮112 / pin ∮110, and the end face positioning is basically in contact, but the above over-positioning method will make installation and disassembly difficult. For this reason, we propose a positioning device for the medium and thick plate working roll changing platform. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a positioning device for a medium and thick plate working roll changing platform.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A positioning device for a medium and thick plate working roll changing platform comprises a base, a bridge for steel rolling is vertically provided on the top of the base, threaded plates are vertically provided on the tops of both ends of the base in the width direction, one-way screws are transversely threadedly inserted in the threaded plates, a transmission assembly for controlling the movement of the one-way screw is provided on the end of the one-way screw away from the bridge, support frames are vertically symmetrically provided on the tops of both ends of the threaded plates on the top of the base, the same bidirectional screw is transversely rotatably inserted in the upper parts of the support frames on the adjacent sides, and positioning assemblies for controlling the movement of the bridge are provided on both ends of the bidirectional screw.

[0006] Preferably, the transmission assembly includes a spline rod coaxially arranged on the end of the one-way screw away from the bridge frame, the outside of the spline rod is slidably sleeved with a spline sleeve, the outer circumferential surface of the spline sleeve is rotatably sleeved with a first bearing seat, the first bearing seat is fixed to the side wall of the base, and the end of the spline sleeve away from the bridge frame is provided with a driving assembly for controlling the rotation of the one-way screw.

[0007] Through the above technical solution: the spline sleeve is used to drive the spline rod to drive the one-way screw to rotate, and it can move at a uniform speed, so as to achieve the effect of positioning the end of the bridge.

[0008] Preferably, the positioning assembly includes a connecting seat symmetrically threadedly sleeved on both ends of the bidirectional screw, and the connecting seat is provided with a push rod on the side close to the bridge frame, and the ends of the push rod are abutted against the side wall of the bridge frame, and the ends of the bidirectional screw are respectively coaxially provided with hand wheels.

[0009] Through the above technical solution: the bidirectional screw is used to drive the connecting seat to move and then drive the top rod to apply thrust to the bridge, pushing the bridge to the predetermined position on the top of the base, and the two ends are adjusted synchronously, which greatly reduces the positioning time.

[0010] Furthermore, the driving assembly includes a transmission shaft which is laterally symmetrically arranged on one side in the length direction of the base, the outer circumferential surface of the transmission shaft is rotatably sleeved with a second bearing seat, the second bearing seat is fixed to the side wall of the base, the end of the transmission shaft and the end of the spline sleeve are sleeved with sprockets, the sprockets on the adjacent side are respectively sleeved with the same chain, the opposite end of the transmission shaft is sleeved with a first bevel gear, the end of the first bevel gear away from the base is meshed with the same second bevel gear, the end of the second bevel gear away from the base is provided with a reducer, and the input end of the reducer is laterally provided with a driving motor.

[0011] Through the above technical solution: the driving motor is used to drive the second bevel gear to rotate, so that the first bevel gear drives the transmission shaft to rotate synchronously in the opposite direction, and the sprocket and chain are used to drive the spline sleeve to rotate synchronously, so that the one-way screw rotates synchronously.

[0012] Furthermore, a ball is embedded at one end of the one-way screw near the bridge frame, and the end of the ball is slidably pressed against the side wall of the bridge frame.

[0013] Through the above technical solution: the ball bearings are used to apply thrust to the side walls of the bridge frame, so that when the top rod applies thrust, the bridge frame is easy to slide and the position is easy to adjust.

[0014] Preferably, guide slide bars are provided at the bottom of the connecting seat, and the guide slide bars are respectively slidably passed through the support frames on the adjacent sides.

[0015] Through the above technical solution: the guide slide rod is used in conjunction with the support frame to make the connecting seat slide horizontally and position its movement trajectory.

[0016] The beneficial effects of the utility model are:

[0017] 1. Efficient positioning and adjustment: Through the cooperation of transmission components, positioning components and drive components, the bridge position can be positioned quickly and accurately, which greatly reduces the positioning time and improves work efficiency.

[0018] 2. Synchronous adjustment and stability: Through the design of the connecting seat, the top rod and the guide slide rod, the synchronous adjustment of both ends is achieved, which ensures the smooth pushing of the bridge and ensures the accuracy and stability of the position.

[0019] 3. Reduce manual intervention: The use of automated transmission devices and positioning components reduces the need for manual intervention, improves the degree of automation of the entire roll changing platform, reduces the possibility of manual errors, and improves production efficiency.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a medium and thick plate working roll changing platform positioning device proposed by the utility model;

[0022] Figure 2 A medium and thick plate working roll changing platform positioning device is proposed in the utility model Figure 1 A schematic diagram of the enlarged local structure at A;

[0023] Figure 3 This is a schematic diagram of the positioning component structure of a positioning device for a medium and thick plate work roll changing platform proposed by the utility model;

[0024] Figure 4 The utility model provides a schematic diagram of the structure of a driving assembly of a medium and thick plate working roll changing platform positioning device.

[0025] In the figure: 1. base; 2. bridge; 3. first bearing seat; 4. spline sleeve; 5. spline rod; 6. one-way screw; 7. ball; 8. threaded plate; 9. sprocket; 10. chain; 11. transmission shaft; 12. second bearing seat; 13. first bevel gear; 14. second bevel gear; 15. reducer; 16. drive motor; 17. support frame; 18. two-way screw; 19. connecting seat; 20. guide slide rod; 21. push rod; 22. handwheel. DETAILED DESCRIPTION

[0026] 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 of the embodiments.

[0027] Example 1, reference Figures 1 to 4A positioning device for a medium and thick plate working roll changing platform comprises a base 1, a bridge frame 2 for steel rolling is vertically arranged on the top of the base 1, threaded plates 8 are vertically arranged on the tops of both ends of the base 1 in the width direction, one-way screws 6 are transversely threadedly inserted in the threaded plates 8, and a transmission component for controlling the movement of the one-way screw 6 is arranged at the end of the one-way screw 6 away from the bridge frame 2, support frames 17 are vertically symmetrically arranged on the tops of both ends of the top of the base 1 near the threaded plates 8, and the upper part of the support frames 17 on the adjacent side is transversely rotatably inserted with the same bidirectional screw 18, and positioning components for controlling the movement of the bridge frame 2 are arranged at both ends of the bidirectional screw 18.

[0028] Specifically, please refer to the figure. The transmission assembly includes a spline rod 5 coaxially arranged at the end of the one-way screw 6 away from the bridge frame 2. The outside of the spline rod 5 is slidably sleeved with a spline sleeve 4, and the outer circumferential surface of the spline sleeve 4 is rotatably sleeved with a first bearing seat 3. The first bearing seat 3 is fixed to the side wall of the base 1. The end of the spline sleeve 4 away from the bridge frame 2 is provided with a driving assembly for controlling the rotation of the one-way screw 6. The spline sleeve 4 is used to drive the spline rod 5 to rotate and drive the one-way screw 6 to rotate, and it can move at a uniform speed, thereby achieving the effect of positioning the end of the bridge frame 2.

[0029] Specifically, please refer to the figure. The positioning assembly includes a connecting seat 19 symmetrically threaded on both ends of the bidirectional screw 18. A push rod 21 is provided on the side of the connecting seat 19 close to the bridge 2. The ends of the push rod 21 are against the side walls of the bridge 2. The ends of the bidirectional screw 18 are coaxially provided with hand wheels 22. The bidirectional screw 18 is used to drive the connecting seat 19 to move and then drive the push rod 21 to apply thrust to the bridge 2, thereby pushing the bridge 2 to the predetermined position on the top of the base 1. The two ends are adjusted synchronously, which greatly reduces the positioning time.

[0030] Specifically, please refer to the figure, the driving assembly includes a transmission shaft 11 which is laterally symmetrically arranged on one side of the length direction of the base 1, and the outer circumferential surface of the transmission shaft 11 is rotatably sleeved with a second bearing seat 12, and the second bearing seat 12 is fixed to the side wall of the base 1, and the end of the transmission shaft 11 and the end of the spline sleeve 4 are sleeved with a sprocket 9, and the sprockets 9 on the adjacent side are respectively sleeved with the same chain 10, and the opposite end of the transmission shaft 11 is sleeved with a first bevel gear 13, and the first bevel gear 13 is meshed with the same second bevel gear 14 at the end away from the base 1, and the second bevel gear 14 is provided with a reducer 15 at the end away from the base 1, and a driving motor 16 is laterally arranged at the input end of the reducer 15, and the driving motor 16 is used to drive the second bevel gear 14 to rotate, so that the first bevel gear 13 drives the transmission shaft to rotate in the opposite direction synchronously, and the coordinated transmission of the sprocket 9 and the chain 10 drives the spline sleeve 4 to rotate synchronously, and then the one-way screw 6 rotates synchronously.

[0031] Specifically, please refer to the figure, a ball 7 is embedded in the one-way screw 6 near one end of the bridge frame 2, and the end of the ball 7 slides against the side wall of the bridge frame 2. The ball 7 is used to apply a thrust to the side wall of the bridge frame 2, so that when the top rod 21 applies a thrust, the bridge frame 2 is easy to slide and the position is easy to adjust.

[0032] Specifically, please refer to the figure, a guide slide bar 20 is provided at the bottom of the connecting seat 19, and the guide slide bar 20 slides through the support frame 17 on the adjacent side respectively. The guide slide bar 20 cooperates with the support frame 17 to make the connecting seat 19 slide horizontally and position its movement trajectory.

[0033] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A medium and thick plate work roll changing platform positioning device, comprising a base (1), characterized in that: A bridge frame (2) for steel rolling is vertically arranged on the top of the base (1), and threaded plates (8) are vertically arranged on the tops of both ends of the base (1) in the width direction, and one-way screws (6) are transversely threadedly inserted into the threaded plates (8), and a transmission component for controlling the movement of the one-way screw (6) is arranged at the end of the one-way screw (6) away from the bridge frame (2), and support frames (17) are vertically symmetrically arranged on the tops of both ends of the threaded plates (8) at the top of the base (1), and the upper part of the support frames (17) on the adjacent side is transversely rotatably inserted with the same bidirectional screw (18), and positioning components for controlling the movement of the bridge frame (2) are arranged at both ends of the bidirectional screw (18).

2. The medium and thick plate work roll changing platform positioning device according to claim 1 is characterized in that: The transmission assembly comprises a spline rod (5) coaxially arranged at the end of the one-way screw (6) away from the bridge frame (2); a spline sleeve (4) is slidably sleeved on the outside of the spline rod (5); a first bearing seat (3) is rotatably sleeved on the outer peripheral surface of the spline sleeve (4); the first bearing seat (3) is fixed to the side wall of the base (1); and a driving assembly for controlling the rotation of the one-way screw (6) is provided at the end of the spline sleeve (4) away from the bridge frame (2).

3. The medium and thick plate work roll changing platform positioning device according to claim 2 is characterized in that: The positioning assembly comprises a connecting seat (19) symmetrically threadedly sleeved on both ends of a bidirectional screw (18); a push rod (21) is provided on the side of the connecting seat (19) close to the bridge frame (2); the ends of the push rod (21) are abutted against the side wall of the bridge frame (2); and hand wheels (22) are coaxially provided on the ends of the bidirectional screw (18).

4. The medium and thick plate work roll changing platform positioning device according to claim 3 is characterized in that: The driving assembly comprises a transmission shaft (11) which is symmetrically arranged on one side of the length direction of the base (1), the outer circumferential surface of the transmission shaft (11) is rotatably sleeved with a second bearing seat (12), the second bearing seat (12) is fixed to the side wall of the base (1), the end of the transmission shaft (11) and the end of the spline sleeve (4) are sleeved with a sprocket (9), the sprockets (9) on the adjacent sides are respectively sleeved with the same chain (10), the opposite end of the transmission shaft (11) is sleeved with a first bevel gear (13), the end of the first bevel gear (13) away from the base (1) is meshed with the same second bevel gear (14), the end of the second bevel gear (14) away from the base (1) is provided with a reducer (15), and the input end of the reducer (15) is transversely provided with a driving motor (16).

5. The medium and thick plate work roll changing platform positioning device according to claim 4 is characterized in that: A ball (7) is embedded at one end of the one-way screw (6) close to the bridge frame (2), and the end of the ball (7) slides against the side wall of the bridge frame (2).

6. The medium and thick plate work roll changing platform positioning device according to claim 5 is characterized in that: The bottom of each connecting seat (19) is provided with a guide slide bar (20), and each guide slide bar (20) slides through the supporting frame (17) on an adjacent side.

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