Roll changing device of cogging mill

Abstract

The invention provides a cogging mill roller replacing device which comprises a roller replacing trolley, a roller replacing device and a roller replacing device. Limiting pins corresponding to the inserting grooves are arranged on the moving frame, and the moving hydraulic cylinder is used for driving the moving frame to move; a dragging plate is fixedly connected with the conveying chain, a second hook corresponding to the first hook is arranged on the dragging plate, and a first rail is fixedly arranged on the dragging assembly; the second track corresponds to the first track, and the roller changing trolley is movably connected to the second track and the first track through a first rotating wheel. Compared with traditional tractor movement, the roller changing trolley has the beneficial effects that the roller changing trolley is driven to move through the movable hydraulic cylinder firstly, then the roller changing trolley is driven to move through the conveying chain, the conveying chain is high in moving speed, the movable hydraulic cylinder is large in driving force, resistance of the roller changing trolley can be overcome, and the working efficiency is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of steel manufacturing equipment, and in particular relates to a roll changing device for a blanking machine. Background Art

[0002] For the production preparation process of the blanking machine of small and medium-sized steel production lines, the rolls need to be pulled out of the blanking machine and then the traction equipment completes the roll transfer work. The traditional roll changing device uses a traction trolley to complete the roll changing work. Once the iron oxide scale and other debris generated during the rolling process fill the gap between the rolls and the liner, the movement resistance of the roll changing trolley will increase. If the roll changing trolley is driven by an electric motor, the driving force is small and the roll changing trolley cannot be changed. It is necessary to manually clean up the debris or increase external force to drive the roll changing trolley to move, which causes great difficulties to the production preparation of the blanking machine and reduces the roll changing efficiency. Summary of the invention

[0003] In view of this, the present invention aims to provide a roll changing device for a blank opening machine, in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A roll changing device for a blanking machine, comprising:

[0006] A roller changing trolley, the roller changing trolley comprises a trolley body, a first rotating wheel is arranged at the lower end of the trolley body, a first hook is fixedly arranged at one end of the trolley body, and a slot is arranged on the lower end surface of the first hook;

[0007] A transfer platform, the transfer platform is located at one end of the roller changing trolley provided with a first hook, the transfer platform comprises a mobile frame and a mobile hydraulic cylinder, the mobile frame is provided with a limit pin corresponding to the slot, and the mobile hydraulic cylinder is used to drive the mobile frame to move;

[0008] A drag assembly, the drag assembly is located at one end of the transfer platform away from the roller-changing trolley, the drag assembly includes a transport chain and a drag plate, the drag plate is fixedly connected to the transport chain, a second hook corresponding to the first hook is provided on the drag plate, the second hook is rotatably connected to the drag plate, and a first track is fixedly provided on the drag assembly;

[0009] The second track corresponds to the first track, the second track is located on both sides of the transfer platform, and the roller changing trolley is movably connected to the second track and the first track through the first rotating wheel.

[0010] Furthermore, the first hook is located at one end of the vehicle body adjacent to the transfer platform, and a first limiting boss is fixedly provided on the upper end surface of the end of the first hook away from the vehicle body. The upper end of the first limiting boss is inclined toward the vehicle body, and the upper end edge of the first limiting boss adjacent to the transfer platform adopts a chamfered structure.

[0011] Furthermore, a second limiting boss is fixedly provided on the lower end surface of the second hook adjacent to one end of the roller changing trolley, the second limiting boss corresponds to the position of the first limiting boss, the lower end of the second limiting boss is inclined away from the roller changing trolley, the end surface of the second hook adjacent to the roller changing trolley is an arc-shaped surface, and the end of the second hook away from the second limiting boss is rotatably connected to the drag plate.

[0012] Furthermore, the output shaft of the mobile hydraulic cylinder is connected to the mobile frame, and the housing of the mobile hydraulic cylinder is fixed on the ground through a mounting base;

[0013] The movable frame is provided with a second rotating wheel, and the second rotating wheel is movably connected to the third track.

[0014] Furthermore, the second track and the third track are both fixedly mounted on the track bracket;

[0015] The height of the third track is lower than that of the second track.

[0016] Furthermore, the limit pin is movably installed on the inner side of the guide tube, the guide tube is fixedly connected to the movable frame, and the limit pin is correspondingly provided with a limit hydraulic cylinder for driving the limit pin to move.

[0017] Furthermore, the lower end of the limit pin is hinged to the swing arm, the middle end of the swing arm is hinged to the moving frame, the other end of the swing arm is hinged to the output shaft of the limit hydraulic cylinder, and the housing of the limit hydraulic cylinder is hinged to the moving frame.

[0018] Furthermore, the inner sides of the two ends of the transport chain are respectively installed in cooperation with two sprockets, the sprocket adjacent to the transfer platform is rotatably connected to the drag plate bracket, and the other sprocket is rotatably connected to the slide plate, and the slide plate is movably connected to the drag plate bracket along the moving direction of the transport chain, and an adjustment plate is fixedly provided on the end of the slide plate away from the roller changing trolley, and an adjustment threaded hole is provided on the adjustment plate, and a tensioning bolt is threadedly connected to the inner thread of the adjustment threaded hole, and the tensioning bolt tightens the drag plate bracket.

[0019] Furthermore, one of the sprockets is connected to the output end of the reducer through a coupling, and the input end of the reducer is connected to the output end of the motor.

[0020] Furthermore, the number of the first rotating wheels is four, the number of the first tracks and the number of the second tracks are both two, and two first rotating wheels are respectively provided with one first track and one second track.

[0021] Compared with the prior art, the roll changing device of the blank opening machine described in the present invention has the following features:

[0022] Beneficial effects:

[0023] Compared with the traditional tractor movement, the roll changing device of the blank opening machine described in the present invention first uses a mobile hydraulic cylinder to drive the roll changing trolley to move, and then uses a transport chain to drive the roll changing trolley to move. The transport chain has a fast moving speed and a large driving force of the mobile hydraulic cylinder, which can overcome the resistance of the roll changing trolley and ensure work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the side structure of the device according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic side view of the structure of the roller changing trolley according to an embodiment of the present invention;

[0027] Figure 3 For the embodiment of the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0028] Figure 4 It is a schematic diagram of the side structure of the transfer platform according to an embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of the side structure of the dragging assembly according to an embodiment of the present invention;

[0030] Figure 6 For the embodiment of the present invention Figure 5 Schematic diagram of the structure at B in the middle;

[0031] Figure 7 For the embodiment of the present invention Figure 5 Schematic diagram of the structure at C in the middle;

[0032] Figure 8 It is a schematic diagram of the structure of the dragging component according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Roller-changing trolley; 2. Transfer platform; 3. Drag assembly; 4. Second track; 101. Car body; 102. First rotating wheel; 103. First hook; 104. First limiting boss; 105. Slot; 201. Moving frame; 202. Moving hydraulic cylinder; 203. Limiting hydraulic cylinder; 204. Limiting pin; 205. Swing arm; 206. Guide tube; 301. Transport chain; 302. Sprocket; 303. Drag plate bracket; 304. Drag plate; 305. Second hook; 306. Second limiting boss; 307. Slide plate; 308. Adjustment plate; 309. Tensioning bolt; 310. Reducer; 311. Motor; 312. Coupling; 313. First track. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0039] like Figures 1 to 8 As shown, a roll changing device for a blanking machine comprises:

[0040] The roller changing trolley 1 comprises a trolley body 101, a first rotating wheel 102 is arranged at the lower end of the trolley body 101, a first hook 103 is fixedly arranged at one end of the trolley body 101, and a slot 105 is opened on the lower end surface of the first hook 103;

[0041] The transfer platform 2 is located at one end of the roller changing trolley 1 provided with the first hook 103. The transfer platform 2 includes a moving frame 201 and a moving hydraulic cylinder 202. The moving frame 201 is provided with a limit pin 204 corresponding to the slot 105. The moving hydraulic cylinder 202 is used to drive the moving frame 201 to move;

[0042] The drag assembly 3 is located at one end of the transfer platform 2 away from the roller changing trolley 1. The drag assembly 3 includes a transport chain 301 and a drag plate 304. The drag plate 304 is fixedly connected to the transport chain 301. The drag plate 304 is provided with a second hook 305 corresponding to the first hook 103. The second hook 305 is rotatably connected to the drag plate 304. The drag assembly 3 is fixedly provided with a first track 313.

[0043] The second track 4 corresponds to the first track 313 , and the second track 4 is located on both sides of the transfer platform 2 . The roller changing trolley 1 is movably connected to the second track 4 and the first track 313 through the first rotating wheel 102 .

[0044] The first hook 103 is located at one end of the vehicle body 101 adjacent to the transfer platform 2, and a first limiting boss 104 is fixedly provided on the upper end surface of the end of the first hook 103 away from the vehicle body 101. The upper end of the first limiting boss 104 is inclined toward the vehicle body 101, and the upper edge of the first limiting boss 104 adjacent to the transfer platform 2 adopts a chamfered structure.

[0045] A second limiting boss 306 is fixedly arranged on the lower end surface of the second hook 305 near the end of the roller changing trolley 1. The second limiting boss 306 corresponds to the position of the first limiting boss 104. The lower end of the second limiting boss 306 is inclined in the direction away from the roller changing trolley 1. The end surface of the second hook 305 near the roller changing trolley 1 is an arc surface. The end of the second hook 305 away from the second limiting boss 306 is rotatably connected to the drag plate 304. The arc surface plays a guiding role, which facilitates the connection between the first hook 103 and the second hook 305 (a handle is provided on the second hook 305, and the first hook 103 and the second hook 305 can be connected by manually lifting). The second limiting boss 306 and the first limiting boss 104 have different inclination directions, which improves the stability of the connection between the first hook 103 and the second hook 305.

[0046] The output shaft of the mobile hydraulic cylinder 202 is connected to the mobile frame 201, and the housing of the mobile hydraulic cylinder 202 is fixed on the ground through a mounting seat; the mobile frame 201 is provided with a second rotating wheel, and the second rotating wheel is movably connected to the third track. The second track 4 and the third track are both fixedly mounted on the track bracket; the height of the third track is lower than that of the second track 4.

[0047] The limit pin 204 is movably installed inside the guide tube 206, and the guide tube 206 is fixedly connected to the mobile frame 201. The limit pin 204 is correspondingly provided with a limit hydraulic cylinder 203 for driving the limit pin 204 to move. The lower end of the limit pin 204 is hinged to the swing arm 205, the middle end of the swing arm 205 is hinged to the mobile frame 201, the other end of the swing arm 205 is hinged to the output shaft of the limit hydraulic cylinder 203, and the housing of the limit hydraulic cylinder 203 is hinged to the mobile frame 201.

[0048] The inner sides of the two ends of the transport chain 301 are respectively installed with two sprocket wheels 302. The sprocket wheel 302 adjacent to the transfer platform 2 is rotatably connected to the carriage bracket 303, and the other sprocket wheel 302 is rotatably connected to the slide plate 307. The slide plate 307 is movably connected to the carriage bracket 303 along the moving direction of the transport chain 301. An adjustment plate 308 is fixedly arranged at the end of the slide plate 307 away from the roller changing trolley 1. The adjustment plate 308 is provided with an adjustment threaded hole. A tensioning bolt 309 is threadedly connected to the adjustment threaded hole. The tensioning bolt 309 presses the carriage bracket 303 tightly. By rotating the tensioning bolt 309, the relative position between the slide plate 307 and the carriage bracket 303 can be adjusted to tension the transport chain 301.

[0049] One of the sprockets 302 is connected to the output end of the reducer 310 through a coupling 312, and the input end of the reducer 310 is connected to the output end of the motor 311. The sprocket 302 on the slide 307 is connected to the output end of the reducer 310 through a coupling 312. The coupling 312 adopts but is not limited to the existing universal joint. The slide 307 is located at one end of the carriage bracket 303 away from the roll changing trolley 1, away from the rolling mill, which is convenient for operating and maintaining the motor 311.

[0050] There are four first rotating wheels 102 , two first tracks 313 and two second tracks 4 , and two first rotating wheels 102 are provided with one first track 313 and one second track 4 .

[0051] Working process:

[0052] The lower roll of the rolling mill is located on the roll changing trolley 1. When the roll needs to be changed, the output shaft of the limiting hydraulic cylinder 203 contracts, driving the limiting pin 204 to move upward and insert into the slot 105, and then the output shaft of the moving hydraulic cylinder 202 extends to drive the moving frame 201 and the roll changing trolley 1 to move, the second rotary wheel of the moving frame 201 moves on the third track, and the first rotary wheel 102 of the roll changing trolley 1 moves on the second rotary wheel. When the first hook 103 contacts the second hook 305, the second hook 305 moves upward near one end of the roll changing trolley 1. After the second limiting boss 306 passes over the first limiting boss 104, the second hook 305 moves downward near one end of the roll changing trolley 1. At this time, the second hook 305 is connected to the first hook 103, and the motor 311 rotates to drive the transport chain 301 and the drag plate 304 to move. The drag plate 304 drives the roll changing trolley 1 to move, and the first rotary wheel 102 of the roll changing trolley 1 moves from the second track 4 to the first track 313.

[0053] Compared with the movement of the traditional tractor, the roller changing trolley 1 is driven to move by first using the mobile hydraulic cylinder 202 and then using the transport chain 301. The transport chain 301 has a fast moving speed and the driving force of the mobile hydraulic cylinder 202 is large, which can overcome the resistance of the roller changing trolley 1 and ensure work efficiency.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A roll changing device for a blanking machine, characterized in that: include: A roller changing trolley (1), the roller changing trolley comprising a trolley body (101), a first rotating wheel (102) being provided at the lower end of the trolley body (101), a first hook (103) being fixedly provided at one end of the trolley body (101), and a slot (105) being provided on the lower end surface of the first hook (103); A transfer platform (2), the transfer platform (2) being located at one end of the roller changing trolley (1) provided with a first hook (103), the transfer platform (2) comprising a moving frame (201) and a moving hydraulic cylinder (202), the moving frame (201) being provided with a limit pin (204) corresponding to the slot (105), and the moving hydraulic cylinder (202) being used for driving the moving frame (201) to move; A drag component (3), the drag component (3) is located at one end of the transfer platform (2) away from the roller changing trolley (1), the drag component (3) comprises a transport chain (301) and a drag plate (304), the drag plate (304) is fixedly connected to the transport chain (301), a second hook (305) corresponding to the first hook (103) is provided on the drag plate (304), the second hook (305) is rotatably connected to the drag plate (304), and a first track (313) is fixedly provided on the drag component (3); The second track (4) corresponds to the first track (313), the second track (4) is located on both sides of the transfer platform (2), and the roller changing trolley (1) is movably connected to the second track (4) and the first track (313) through the first rotating wheel (102).

2. A roll changing device for a blank opening machine according to claim 1, characterized in that: The first hook (103) is located at one end of the vehicle body (101) close to the transfer platform (2); a first limiting boss (104) is fixedly provided on the upper end surface of the end of the first hook (103) away from the vehicle body (101); the upper end of the first limiting boss (104) is inclined toward the vehicle body (101); and the upper end edge of the first limiting boss (104) close to the transfer platform (2) adopts a chamfered structure.

3. A roll changing device for a blank opening machine according to claim 2, characterized in that: A second limiting boss (306) is fixedly provided on the lower end surface of one end of the second hook (305) adjacent to the roller changing trolley (1); the second limiting boss (306) corresponds to the position of the first limiting boss (104); the lower end of the second limiting boss (306) is inclined in a direction away from the roller changing trolley (1); the end surface of the second hook (305) adjacent to the roller changing trolley (1) is an arc-shaped surface; the end of the second hook (305) away from the second limiting boss (306) is rotatably connected to the drag plate (304).

4. The roll changing device for a blank opening machine according to claim 1, characterized in that: The output shaft of the mobile hydraulic cylinder (202) is connected to the mobile frame (201), and the shell of the mobile hydraulic cylinder (202) is fixed on the ground through a mounting seat; The movable frame (201) is provided with a second rotating wheel, and the second rotating wheel is movably connected to the third track.

5. A roll changing device for a blank opening machine according to claim 4, characterized in that: The second track (4) and the third track are both fixedly mounted on the track bracket; The height of the third track is lower than that of the second track (4).

6. A roll changing device for a blank opening machine according to claim 4, characterized in that: The limit pin (204) is movably installed inside the guide tube (206); the guide tube (206) is fixedly connected to the movable frame (201); and the limit pin (204) is correspondingly provided with a limit hydraulic cylinder (203) for driving the limit pin (204) to move.

7. The roll changing device for a blank opening machine according to claim 6, characterized in that: The lower end of the limit pin (204) is hinged to the swing arm (205), the middle end of the swing arm (205) is hinged to the moving frame (201), the other end of the swing arm (205) is hinged to the output shaft of the limit hydraulic cylinder (203), and the shell of the limit hydraulic cylinder (203) is hinged to the moving frame (201).

8. The roll changing device for a blank opening machine according to claim 1, characterized in that: The inner sides of the two ends of the transport chain (301) are respectively mounted in cooperation with two sprockets (302); the sprocket (302) adjacent to the transfer platform (2) is rotatably connected to the carriage bracket (303); the other sprocket (302) is rotatably connected to the slide plate (307); the slide plate (307) is movably connected to the carriage bracket (303) along the moving direction of the transport chain (301); an adjustment plate (308) is fixedly provided at one end of the slide plate (307) away from the roller changing trolley (1); an adjustment threaded hole is provided on the adjustment plate (308); a tensioning bolt (309) is threadedly connected to the inner surface of the adjustment threaded hole; the tensioning bolt (309) presses the carriage bracket (303) tightly.

9. A roll changing device for a blank opening machine according to claim 8, characterized in that: One of the sprockets (302) is connected to the output end of the reducer (310) via a coupling (312), and the input end of the reducer (310) is connected to the output end of the motor (311).

10. The roll changing device of a blank opening machine according to claim 1, characterized in that: The number of the first rotating wheels (102) is four, the number of the first tracks (313) and the number of the second tracks (4) are both two, and two first rotating wheels (102) are respectively provided with one first track (313) and one second track (4).

Images