Roll changing device for a swing door loom

Abstract

The utility model relates to the technical field of rolling mill equipment, concretely to a roll changing device for swing door type looper, including the vehicle body, four corners of the vehicle body are installed with the wheel on two looper tracks respectively, the left and right sides of vehicle body top are detachably rotatably connected with the support swing arm respectively, the support swing arm is fixedly installed with the winch, the winch is wound with the lifting appliance that one end passes through the support swing arm support and extends to the support swing arm far from the vehicle body one end, the vehicle body top is fixedly installed with a plurality of long roll storage roll stands and a plurality of short roll storage roll stands respectively. When replacing the carrier roller of swing door type looper, the vehicle body can be conveniently and quickly placed on the looper track, quickly moved to the place where the roll is replaced for replacement, the device has low manufacturing cost, guarantees the personal safety of workers, reduces the labor intensity of workers, and further improves production efficiency, and can be used for roll replacement of the loopers of different heights in a unit, reduces the investment cost of roll replacement equipment.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling equipment technology, specifically to a roller changing device for a swing gantry looper. Background Technology

[0002] Swing gate loopers are often configured in cold-rolled strip continuous rolling mills and processing units to store strip steel and ensure continuous operation of the unit. In particular, pickling and rolling units are equipped with inlet loopers, intermediate loopers and outlet loopers arranged in three layers. The height of each layer is configured according to the height of the looper swing gate. Several swing gates are configured along the length of the looper. Short idler rollers of the swing gates and long idler rollers installed on the foundation are used to support the strip steel. The three looper configurations are equipped with hundreds of idler rollers in total.

[0003] Existing technologies for the maintenance and replacement of these idler rollers include using overhead cranes, but this requires three cranes for each of the three loopers, and the looper length is generally over 100 meters. The cost of using overhead cranes for roller replacement is high, and it also requires increasing the height of the looper top plate to install the cranes, increasing the plant height and thus increasing the unit investment cost. Alternatively, manual replacement with lifting tools can be used. Although the investment cost of roller replacement is reduced, the labor intensity is high, the replacement efficiency is low, and the unit downtime is long, affecting the unit output. At the same time, personal safety cannot be guaranteed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a roller changing device for a swing gate looper, comprising a car body, with wheels mounted at the four corners of the car body on two looper tracks, and detachably rotatably connected to the left and right sides of the top of the car body, with a winch fixedly mounted on the support arm, and a lifting device wound on the winch, one end of which is supported by the support arm and extends to the end of the support arm away from the car body; and several long roller storage racks and several short roller storage racks are fixedly mounted on the top of the car body.

[0005] As a preferred technical solution of this utility model: fixed columns are fixedly installed on the left and right sides of the top of the vehicle body, and a rotating support is fixedly installed on the top of the fixed column. The supporting arm is detachably rotatably connected to the fixed column through the rotating support.

[0006] As a preferred technical solution of this utility model, the fixed column is a hydraulic telescopic rod.

[0007] As a preferred technical solution of this utility model: the short roller storage frame is located in the center of the car body and its length direction is parallel to the looper track; the long roller storage frame consists of two sets and is located on the front and rear sides of the top of the car body respectively; the long roller storage frame is perpendicular to the looper track.

[0008] As a preferred technical solution of this utility model: the supporting swing arm is L-shaped, and fixed pulleys are fixedly installed on the left and right sides of the top of the supporting swing arm, and the lifting device passes around the two fixed pulleys.

[0009] As a preferred technical solution of this utility model: the inner wall of the supporting swing arm is fixedly installed with a supporting diagonal rod for improving the structural strength of the supporting swing arm.

[0010] As a preferred technical solution of this utility model: the end of the lifting device away from the winch is fixedly installed with a hook or clamp for lifting the idler roller.

[0011] As a preferred technical solution of this utility model, it also includes a drive motor fixedly installed on the vehicle body, and the output shaft of the drive motor is connected to the wheel drive.

[0012] As a preferred technical solution of this utility model: the top of the long roller storage frame and the short roller storage frame are provided with arc-shaped grooves for placing idler rollers.

[0013] As a preferred technical solution of this utility model, the winch is a manual winch.

[0014] This utility model has the following beneficial effects: When changing the idler rollers of the swing gate type looper, the car body can be placed on the looper track conveniently and quickly, and moved to the place where the roller needs to be changed for replacement. The device has low manufacturing cost, ensures the personal safety of workers, reduces the labor intensity of workers, and thus improves production efficiency. At the same time, it can be used to change the rollers of loopers at different heights in a unit, reducing the investment cost of roller changing equipment. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure provided by this utility model.

[0016] Figure 2 This is a top view of the overall structure provided by this utility model.

[0017] Appendix Figure 1-2 The structures represented by each label are listed below: 1. Wheels; 2. Car body; 3. Fixed column; 4. Rotary support; 5. Support arm; 6. Winch; 7. Lifting device; 8. Short idler roller; 9. Swing gate; 10. Loop track; 11. Long roller storage rack; 12. Short roller storage rack; 13. Long idler roller. Detailed Implementation

[0018] The principles and features of this utility model are described below. The embodiments given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0019] It should be noted that when a part or component is considered to be "connected to," "located on," or "assembled" to another part or component, it can be directly mounted on the other part or component, or it may be located in an intermediate part or component. The terms "left," "right," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.

[0020] Example 1, as Figure 1 Figure 2 As shown, a roller changing device for a swing gate looper includes a car body 2. The four corners of the car body 2 are respectively equipped with wheels 1 located on two looper tracks 10. The four wheels 1 support the car body 2 so that the car body 2 can move along the length direction of the looper tracks 10. The top left and right sides of the car body 2 are respectively detachably rotatably connected to support arms 5. Winches 6 are fixedly installed on the support arms 5. The two winches 6 are respectively located on opposite sides of the two support arms 5. A lifting device 7 is wound on the winches 6, with one end supported by the support arms 5 and extending to the end of the support arms 5 away from the car body 2. Several long roller storage racks 11 and several short roller storage racks 12 are fixedly installed on the top of the car body 2.

[0021] Fixed columns 3 are fixedly installed on the left and right sides of the top of the vehicle body 2. Rotary supports 4 are fixedly installed on the top of the fixed columns 3. Support arms 5 are detachably and rotatably connected to the fixed columns 3 via the rotary supports 4, allowing the support arms 5 to rotate 360 ​​degrees around the rotary supports 4. When dealing with swing doors 9 of different heights, the support arms 5 can be disassembled and replaced with support arms 5 adapted to the height of the swing door 9, allowing the support arms 5 to be replaced according to the height of different swing doors 9 to accommodate the height of the required roller replacement.

[0022] The short roller storage rack 12 is located in the center of the car body 2 and its length direction is parallel to the looper track 10, making it convenient for operators to stand and operate the winch 6 on both sides of the short roller storage rack 12. There are two sets of long roller storage racks 11, located at the front and rear sides of the top of the car body 2, respectively, and the long roller storage racks 11 are perpendicular to the looper track 10. The long roller storage racks 11 are used to place long idler rollers 13. By placing the long idler rollers 13 on the front and rear sides of the car body 2, when replacing the long idler rollers 13, the angle of the new long idler rollers 13 on the long roller storage racks 11 is closer to parallel with the long idler rollers 13 to be replaced. Furthermore, the replacement stroke can be shortened by moving the car body 2, making the replacement more convenient.

[0023] The tops of the long roller storage rack 11 and the short roller storage rack 12 are provided with arc-shaped grooves for placing idler rollers. The length of the long roller storage rack 11 is adapted to the length of the long idler roller 13, and the length of the short roller storage rack 12 is adapted to the length of the short idler roller 8. It is worth noting that in this utility model, "idler roller" refers to both the short idler roller 8 and the long idler roller 13. The short idler roller 8 is installed on the swing door 9, and the long idler roller 13 is installed between the two looper tracks 10 at a height lower than that of the vehicle body 2.

[0024] Example 2, as Figure 1 Figure 2 As shown, the difference between this embodiment and embodiment one is that the fixed column 3 is a hydraulic telescopic rod, and the supporting swing arm 5 is rotatably connected to the fixed column 3 through the rotating support 4. The height of the supporting swing arm 5 can be adjusted by controlling the lifting and lowering of the fixed column 3, so as to adapt to swing doors 9 of different heights. It is more convenient to use, but it will increase the cost and weight, and it will be more difficult to replace the vehicle body 2 to other loop tracks 10.

[0025] The support arm 5 is an "L" shape rotated 90 degrees clockwise. Fixed pulleys are fixedly installed on the left and right sides of the top of the support arm 5, and the lifting device 7 passes around the two fixed pulleys. Supporting diagonal rods are fixedly installed on the inner wall of the support arm 5 to improve the structural strength of the support arm 5. The two ends of the supporting diagonal rods are fixedly connected to the two sides of the inner wall of the support arm 5 at a 45-degree angle to prevent the support arm 5 from breaking or deforming due to excessive weight of the roller.

[0026] The end of the lifting device 7 away from the winch 6 is fixedly equipped with a hook or clamp for lifting the idler roller. When lifting the idler roller, the idler roller is directly fixed to the lifting device 7 by the hook or clamp, without the need for manual binding of the lifting device 7, which makes the operation more convenient.

[0027] The winch 6 is a manual winch. This saves costs and reduces the load on the car body 2, making it easier to change the looper rail 10.

[0028] The roller changing device for the swing gantry looper described above can be further optimized and / or improved according to actual needs: It also includes a drive motor fixedly mounted on the vehicle body 2, with the output shaft of the drive motor connected to the wheel 1. This allows the drive motor to drive the wheel 1 to rotate actively, thereby moving the vehicle body 2 and replacing manual pushing of the vehicle body 2, making it more convenient to use.

[0029] In summary, when replacing the idler rollers of the swing gate type looper, the vehicle body 2 can be conveniently and quickly placed on the looper track 10 and moved quickly to the place where the roller needs to be replaced. The device has low manufacturing cost, ensures the personal safety of workers, reduces the labor intensity of workers, and thus improves production efficiency. At the same time, it can be used to replace the rollers of loopers at different heights in a unit, reducing the investment cost of roller replacement equipment.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Anyone skilled in the art can smoothly implement this utility model according to the accompanying drawings and the above description. However, any modifications, alterations, or equivalent changes made by those skilled in the art without departing from the scope of the technical solution of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or evolutions made to the above embodiments based on the essential technology of this utility model are still within the protection scope of the technical solution of this utility model.

Claims

1. A roller changing device for a swing-type looper, characterized in that: The vehicle includes a car body (2), with wheels (1) mounted on two loop tracks (10) at the four corners of the car body (2). Supporting arms (5) are detachably and rotatably connected to the top left and right sides of the car body (2). A winch (6) is fixedly mounted on the supporting arms (5). A lifting device (7) is wound on the winch (6), with one end supported by the supporting arms (5) and extending to the end of the supporting arms (5) away from the car body (2). Several long roller storage racks (11) and several short roller storage racks (12) are fixedly mounted on the top of the car body (2).

2. The roller changing device for a swing gate looper according to claim 1, characterized in that: Fixed columns (3) are fixedly installed on the left and right sides of the top of the vehicle body (2), and a rotating support (4) is fixedly installed on the top of the fixed column (3). The supporting rotating arm (5) is detachably rotatably connected to the fixed column (3) through the rotating support (4).

3. A roller changing device for a swing gate looper according to claim 2, characterized in that: The fixed column (3) is a hydraulic telescopic rod.

4. A roller changing device for a swing gate looper according to claim 1, characterized in that: The short roller storage rack (12) is located in the center of the car body (2) and its length direction is parallel to the looper track (10). There are two sets of long roller storage racks (11) located on the front and rear sides of the top of the car body (2) respectively. The long roller storage rack (11) is perpendicular to the looper track (10).

5. A roller changing device for a swing-type looper according to claim 1, characterized in that: The supporting swing arm (5) is L-shaped, and fixed pulleys are fixedly installed on the left and right sides of the top of the supporting swing arm (5). The lifting device (7) passes around the two fixed pulleys.

6. A roller changing device for a swing gate looper according to claim 5, characterized in that: The inner wall of the support arm (5) is fixedly equipped with a support diagonal bar for improving the structural strength of the support arm (5).

7. A roller changing device for a swing gate looper according to claim 1, characterized in that: The end of the lifting device (7) away from the winch (6) is fixedly equipped with a hook or clamp for lifting the idler roller.

8. A roller changing device for a swing gate looper according to claim 1, characterized in that: It also includes a drive motor fixedly installed on the vehicle body (2), and the output shaft of the drive motor is connected to the wheel (1) in a transmission connection.

9. A roller changing device for a swing gate looper according to claim 1, characterized in that: The top of the long roller storage rack (11) and the short roller storage rack (12) are provided with arc-shaped grooves for placing idler rollers.

10. A roller changing device for a swing gate looper according to claim 1, characterized in that: The winch (6) is a manual winch.

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