Roll changing device of cogging mill

Abstract

The utility model provides a roll changing device of a cogging mill, which comprises a roll changing trolley, a roll changing device and a roll changing 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. The utility model has the beneficial effects that compared with the traditional tractor movement, the movable hydraulic cylinder is firstly used for driving the roller changing trolley to move, then the conveying chain is used for driving the roller changing trolley to move, the moving speed of the conveying chain is high, the driving force of the movable hydraulic cylinder is large, the resistance of the roller changing trolley can be overcome, and the working efficiency is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel manufacturing equipment, in particular 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, it will cause the movement resistance of the roll changing trolley to 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. Manual cleaning of debris is required, or external force is added to drive the roll changing trolley to move, which causes great difficulties in the production preparation of the blanking machine and reduces the roll changing efficiency. Utility Model Content

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

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

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

[0006] The roller changing trolley comprises a trolley body, a first rotating wheel is provided at the lower end of the trolley body, a first hook is fixedly provided at one end of the trolley body, and a slot is provided 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 includes 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] 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. A first track is fixed on the drag assembly.

[0009] The second track corresponds to the first track, and the second track is located on both sides of the transfer platform. 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 position of the second limiting boss corresponds to that 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 movable 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 movable frame.

[0018] Furthermore, the inner sides of the two ends of the transport chain are respectively installed 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 skateboard, and the skateboard is movably connected to the drag plate bracket along the moving direction of the transport chain, and an adjustment plate is fixed to the end of the skateboard 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 provided with one first track and one second track respectively.

[0021] Compared with the prior art, the roll changing device of the blanking machine described in the present invention has the following beneficial effects:

[0022] The roll changing device of a blank opening machine described in the utility model, compared with the traditional tractor movement, 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

[0023] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a side structural diagram of the device according to an embodiment of the present utility model;

[0025] Figure 2 This is a side structural diagram of the roller changing trolley according to an embodiment of the present utility model;

[0026] Figure 3 The embodiment of the present utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0027] Figure 4 This is a side structural diagram of the transfer platform according to an embodiment of the present utility model;

[0028] Figure 5 This is a side structural diagram of the drag assembly according to an embodiment of the present utility model;

[0029] Figure 6 The embodiment of the present utility model Figure 5 Schematic diagram of the structure at B in the middle;

[0030] Figure 7 The embodiment of the present utility model Figure 5 Schematic diagram of the structure at C in the middle;

[0031] Figure 8 This is a schematic diagram of the structure of the drag component described in an embodiment of the present utility model.

[0032] Description of reference numerals:

[0033] 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

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0035] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. 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.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] like Figures 1 to 8 As shown, a roll changing device for a blanking machine includes:

[0039] The roller changing trolley 1 includes a trolley body 101, a first rotating wheel 102 is provided at the lower end of the trolley body 101, a first hook 103 is fixed at one end of the trolley body 101, and a slot 105 is provided on the lower end surface of the first hook 103;

[0040] The transfer platform 2 is located at one end of the roller-changing trolley 1 where the first hook 103 is provided. The transfer platform 2 includes a movable frame 201 and a movable hydraulic cylinder 202. The movable frame 201 is provided with a limit pin 204 corresponding to the slot 105. The movable hydraulic cylinder 202 is used to drive the movable frame 201 to move;

[0041] The drag assembly 3 is located at the 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. A first track 313 is fixedly provided on the drag assembly 3.

[0042] The second track 4 corresponds to the first track 313 . 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 via the first rotating wheel 102 .

[0043] 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.

[0044] A second limiting boss 306 is fixedly provided on the lower end surface 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 arcuate surface. The end of the second hook 305 away from the second limiting boss 306 is rotatably connected to the drag plate 304. The arcuate surface plays a guiding role, facilitating the connection between the first hook 103 and the second hook 305 (the second hook 305 is provided with a handle, which can be manually lifted to connect the first hook 103 and the second hook 305). 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.

[0045] The output shaft of the mobile hydraulic cylinder 202 is connected to the mobile frame 201. The housing of the mobile hydraulic cylinder 202 is fixed to the ground via a mounting bracket. The mobile frame 201 is equipped with a second rotating wheel, which 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.

[0046] A limit pin 204 is movably mounted on the inside of a guide tube 206, which is fixedly connected to the movable frame 201. A corresponding limit hydraulic cylinder 203 is provided to the limit pin 204 to drive the limit pin 204. The lower end of the limit pin 204 is hinged to a swing arm 205, the middle end of which is hinged to the movable 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 movable frame 201.

[0047] The inner sides of both ends of the transport chain 301 are respectively installed with two sprockets 302. The sprocket 302 adjacent to the transfer platform 2 is rotatably connected to the drag plate bracket 303, and the other sprocket 302 is rotatably connected to the slide plate 307. The slide plate 307 is movably connected to the drag plate bracket 303 along the moving direction of the transport chain 301. An adjustment plate 308 is fixed to 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. The adjustment threaded hole is threaded with a tensioning bolt 309. The tensioning bolt 309 presses the drag plate bracket 303 tightly. By rotating the tensioning bolt 309, the relative position between the slide plate 307 and the drag plate bracket 303 can be adjusted to tighten the transport chain 301.

[0048] 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 an existing universal joint. The slide 307 is located at the end of the carriage bracket 303 away from the roll changing trolley 1, away from the rolling mill, to facilitate operation and maintenance of the motor 311.

[0049] There are four first rotating wheels 102 , two first tracks 313 and two second tracks 4 , and two first rotating wheels 102 are each provided with one first track 313 and one second track 4 .

[0050] Working process:

[0051] When the second roller 305 is in contact with 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 wheel 102 of the roll-changing trolley 1 moves from the second track 4 to the first track 313.

[0052] Compared with the movement of the traditional tractor, the roller changing trolley 1 is first driven to move by the mobile hydraulic cylinder 202 and then driven to move by 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.

[0053] 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. 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 description of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roll changing device for a blanking machine, characterized in that: include: A roller changing trolley (1), 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) is located at one end of the roller-changing trolley (1) provided with a first hook (103), the transfer platform (2) comprises a movable frame (201) and a movable hydraulic cylinder (202), the movable frame (201) is provided with a limit pin (204) corresponding to the slot (105), and the movable hydraulic cylinder (202) is used to drive the movable frame (201) to move; A drag assembly (3), 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) 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 assembly (3); 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) via the first rotating wheel (102).

2. The roll changing device for a slab opening machine according to claim 1, characterized in that: The first hook (103) is located at one end of the vehicle body (101) adjacent 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 edge of the first limiting boss (104) adjacent to the transfer platform (2) adopts a chamfered structure.

3. The roll changing device for a slab 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 the 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, and 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 slab 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 housing of the mobile hydraulic cylinder (202) is fixed on the ground via a mounting base; The movable frame (201) is provided with a second rotating wheel, and the second rotating wheel is movably connected to the third track.

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

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

8. The roll changing device for a cogging 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), and the other sprocket (302) is rotatably connected to the slide plate (307), and the slide plate (307) is movably connected to the carriage bracket (303) along the moving direction of the transport chain (301), and an adjustment plate (308) is fixed to the end of the slide plate (307) away from the roller-changing trolley (1), and an adjustment threaded hole is provided on the adjustment plate (308), and a tensioning bolt (309) is threadedly connected to the adjustment threaded hole, and the tensioning bolt (309) presses the carriage bracket (303) tightly.

9. The roll changing device for a slab 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 for a cogging 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 each provided with one first track (313) and one second track (4).

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