Roll changing trolley for rolling mills

Abstract

The application relates to a rolling mill roll changing trolley, belonging to the technical field of transportation equipment, which comprises a supporting plate, guardrails are arranged on the two sides of the supporting plate, guide rails are arranged on the opposite sides of the two guardrails, the guide rails on the two guardrails are oppositely arranged, a roll is arranged between the two guardrails, supporting blocks are arranged at the two ends of the roll, and the two ends of the supporting block are respectively overlapped on the corresponding guide rails. The application has the effect of reducing the possibility of trolley rollover.

Description

Technical Field

[0001] This application relates to the field of transport equipment, and in particular to a rolling mill roll changing trolley. Background Technology

[0002] During the movement of the rolling mill body by the roll changing trolley, due to the large weight of the rolling mill body, if the center of gravity of the rolling mill body is too far off from the center of gravity of the trolley when the rolling mill body is placed on the trolley, the trolley is prone to tilting under force, which may lead to the trolley and the rolling mill body overturning, causing damage to the roll changing trolley and adversely affecting production safety. Utility Model Content

[0003] To reduce the possibility of the trolley tipping over, this application provides a rolling mill roll changing trolley.

[0004] The technical solution provided in this application for a rolling mill roll changing trolley is as follows: A rolling mill roll changing trolley includes a pallet, with guardrails on both sides of the pallet, and guide rails on opposite sides of the two guardrails, with the guide rails on the two guardrails facing each other. A rolling mill roll is arranged between the two guardrails, and support blocks are provided at both ends of the rolling mill roll, with the two ends of the support blocks respectively overlapping the corresponding guide rails.

[0005] By adopting the above technical solution, support blocks are set at both ends of the roll, and the support blocks and the roll are moved between two guardrails. The two ends of the support blocks are attached to the guide rail and slide along the guide rail, so that the roll enters between the guardrails and supports multiple rolls. Under the action of the support blocks and the guide rail, multiple rolls are layered and the center of gravity will not shift arbitrarily, thus preventing the roll changing trolley from tipping over and being damaged, and improving safety.

[0006] Optionally, an extension railing is also provided above the guardrail, and the extension railing and the guardrail are fixedly connected by bolts.

[0007] By adopting the above technical solution, adding an extension rail can increase the amount of material transported by the trolley to the rolls, while reducing the possibility of the rolls tipping over and detaching from the trolley.

[0008] Optionally, the upper surface of the guide rail is provided with a plurality of evenly distributed rollers, one end of the guide rail is provided with a limit block, and the other end is provided with a locking element.

[0009] By adopting the above technical solution, the roll moves to the guide rail via the support block and moves along the guide rail. When the support block moves above the roller, the roller rotates accordingly, thereby reducing the friction when the support block moves, until the support block at one end of the roll abuts against the limit block, while the support block at the other end is restricted by the locking component, so that the roll is located between the two guide rails and the stability of the roll is maintained.

[0010] Optionally, the locking element includes a stop block inserted into the upper surface of the guide rail. The side of the stop block away from the limiting block is set as an inclined surface, and the inclined surface is inclined toward the guide rail in the direction away from the limiting block. The lower end of the stop block is provided with a support spring connected to the guide rail.

[0011] By adopting the above technical solution, when the support block moves on the guide rail, it first contacts the inclined surface of the stop block, and the stop block is thus squeezed down, allowing the support block to pass through the stop block smoothly. After the support block disengages from the stop block, the support spring lifts the stop block, preventing the support block from moving out in the opposite direction.

[0012] Optionally, a top block is also provided inside the guide rail and is slidably connected to the guide rail. A lead screw is rotatably connected to one side of the guide rail. The lead screw is threadedly connected to the top block. A groove is provided at one end of the stop block facing the top block, and the lower side of the groove is inclined. The top block abuts against the lower side of the groove.

[0013] By adopting the above technical solution, rotating the lead screw causes the top block to press against the lower side of the groove, thereby causing the stop block to slide down. Subsequently, the support block can move in the opposite direction to disengage from the guide rail, thus realizing the operation of the roll disengaging from the trolley.

[0014] Optionally, multiple evenly distributed support wheels are rotatably connected to both sides below the tray, and a lifting ring is provided below the tray, with a power component connected to the lifting ring.

[0015] Optionally, a support rod is provided at the end of the guide rail away from the limiting block, and the end of the support rod near the limiting block is arc-shaped and rotatably connected to the end of the guide rail. A buffer assembly is also provided between the guide rail and the support rod.

[0016] By adopting the above technical solution, the roll is moved to the trolley by the hoisting device. During the descent, the roll may impact the trolley and cause damage. Therefore, the roll is supported by a support rod, and the buffer assembly provides support for the support rod, so that the roll will not directly hit the trolley. Instead, after contacting the support rod, it slides along the support rod to the guide rail, thereby protecting the roll and the trolley and improving the safety of roll transportation.

[0017] Optionally, the buffer assembly includes a fixing block disposed at the arc-shaped end of the support rod, a buffer spring disposed between the fixing block and the guide rail, and a buffer post disposed on the guide rail facing the fixing block.

[0018] By adopting the above technical solution, when the roller contacts the support rod, the support rod rotates, thereby squeezing the buffer spring. The buffer spring absorbs the kinetic energy of the impact through deformation. At the same time, after the support rod rotates and moves an angle, the fixed block contacts the buffer column, so that the fixed block will not directly impact the guide rail, thereby further protecting the guide rail.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. Support blocks are set at both ends of the roll, and the support blocks and the roll are moved between two guardrails. The two ends of the support blocks are attached to the guide rail and slide along the guide rail, so that the roll enters between the guardrails and supports multiple rolls. Under the action of the support blocks and guide rails, multiple rolls are layered and the center of gravity will not shift arbitrarily, thus preventing the roll changing trolley from tipping over and being damaged, and improving safety. 2. When the support block moves on the guide rail, it first contacts the inclined surface of the stop block, which is then squeezed down, allowing the support block to pass smoothly through the stop block. After the support block disengages from the stop block, the support spring lifts the stop block, preventing the support block from moving out in the opposite direction. This ensures that the roll does not disengage from the trolley and improves the safety of roll transportation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0021] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0022] Figure 3 This is a schematic diagram of the locking component in Embodiment 2 of this application.

[0023] Figure 4 This is a schematic diagram of the structure of the buffer component in Embodiment 2 of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Support plate; 11. Support wheel; 2. Guardrail; 21. Extension rail; 3. Guide rail; 4. Roller; 5. Limit block; 6. Locking element; 61. Stop block; 62. Support spring; 63. Top block; 64. Lead screw; 7. Support rod; 71. Fixing block; 8. Buffer assembly; 81. Buffer spring; 82. Buffer column; 9. Support block. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses a rolling mill roll changing trolley. Example 1

[0027] Reference Figure 1A rolling mill roll changing trolley includes a pallet 1. Multiple evenly distributed support wheels 11 are rotatably connected to both sides of the pallet 1. A lifting ring is fixedly connected to the bottom of the pallet 1. A power component is connected to the lifting ring to drive the pallet 1 to move. The lifting ring and the power component are not shown in the figure.

[0028] Guardrails 2 are fixed on both sides of the pallet 1. Guide rails 3 are fixedly connected to the opposite side of the two guardrails 2, and the guide rails 3 on the two guardrails 2 are arranged opposite to each other. A roller is set between the two guardrails 2. Support blocks 9 are installed at both ends of the roller. The two ends of the support blocks 9 are respectively attached to the corresponding guide rails 3.

[0029] Support blocks 9 are set at both ends of the roll, and the support blocks 9 and the roll are moved between the two guardrails 2. The two ends of the support blocks 9 are attached to the guide rails 3 and slide along the guide rails 3, so that the roll enters between the guardrails 2 and supports multiple rolls. Under the action of the support blocks 9 and the guide rails 3, multiple rolls are layered and the center of gravity will not shift arbitrarily, so as not to cause the roll changing trolley to tip over and be damaged.

[0030] An extension rail 21 is also provided above the guardrail 2. Both the extension rail 21 and the guardrail 2 are fixed with connecting plates. The two connecting plates abut against each other and are fixedly connected by bolts. At the same time, the extension rail 21 is equipped with the same guide rail 3. The addition of the extension rail 21 can increase the amount of transport of the roll by the trolley and reduce the possibility of the roll tipping over and falling off the trolley. Example 2

[0031] Reference Figure 2 , Figure 3 and Figure 4 The difference from Embodiment 1 is that multiple evenly distributed support grooves are provided on the upper surface of the guide rail 3, and multiple evenly distributed rollers 4 are provided in the support grooves. The rollers 4 are rotatably connected to the guide rail 3 in the support grooves, and the top of the rollers 4 is higher than the support grooves. One end of the guide rail 3 is fixed with a limit block 5, and the other end is provided with a locking member 6. The rollers 4 are located between the limit block 5 and the locking member 6. The locking member 6 includes a stop block 61 inserted into the upper surface of the guide rail 3. The side of the stop block 61 away from the limit block 5 is set as an inclined surface. Along the direction away from the limit block 5, the inclined surface is inclined towards the guide rail 3. The lower end of the stop block 61 is provided with a support spring 62 connected to the guide rail 3.

[0032] The roll moves onto the guide rail 3 via the support block 9 and along the guide rail 3. It first contacts the inclined surface of the stop block 61, which is then pressed down, allowing the support block 9 to pass smoothly. It then contacts the roller 4. When the support block 9 moves above the roller 4, the roller 4 rotates accordingly, thereby reducing the friction of the support block 9 as it moves. This continues until the support block 9 at one end of the roll abuts against the limit block 5. After the support block 9 disengages from the stop block 61, the support spring 62 lifts the stop block 61, preventing the support block 9 from moving out in the opposite direction. Thus, the support block 9 is restricted by the locking member 6, keeping the roll between the two guide rails 3 and maintaining its stability.

[0033] A top block 63 is slidably connected inside the guide rail 3. A lead screw 64 is rotatably connected to one side of the guide rail 3. The lead screw 64 is threadedly connected to the top block 63. A groove is provided at the end of the stop block 61 facing the top block 63, and the lower side of the groove is inclined. The top block 63 abuts against the lower side of the groove. Rotating the lead screw 64 causes the top block 63 to press against the lower side of the groove, thereby causing the stop block 61 to slide down. Then the support block 9 can move in the opposite direction to disengage from the guide rail 3, thereby realizing the operation of the roller disengaging from the trolley.

[0034] A support rod 7 is provided at the end of the guide rail 3 away from the limiting block 5. The end of the support rod 7 near the limiting block 5 is arc-shaped and rotatably connected to the end of the guide rail 3. A buffer assembly 8 is also provided between the guide rail 3 and the support rod 7. The buffer assembly 8 includes a fixing block 71 fixed to the arc-shaped end of the support rod 7. A buffer spring 81 is provided between the fixing block 71 and the guide rail 3 to connect the two. A buffer post 82 facing the fixing block 71 is also fixed on the guide rail 3.

[0035] When the roll contacts the support rod 7, the support rod 7 rotates, thereby squeezing the buffer spring 81. The buffer spring 81 absorbs the kinetic energy of the impact through deformation. At the same time, after the support rod 7 rotates and moves an angle, the fixed block 71 contacts the buffer post 82, so that the fixed block 71 will not directly impact the guide rail 3, thereby further protecting the guide rail 3. Thus, the buffer assembly 8 provides support for the support rod 7, so that the roll will not directly hit the trolley, but will slide along the support rod 7 onto the guide rail 3 after contacting the support rod 7.

[0036] The implementation principle of Embodiment 2 of this application is as follows: the roll and the support block 9 are hoisted and moved to the trolley, first contacting the support rod 7, and then moving to the guide rail 3 under the action of the buffer assembly 8. They then continue to move along the guide rail 3 until they reach the limit block 5, and are simultaneously limited by the locking member 6, thereby maintaining the stability of the support block 9 and the roll.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rolling mill roll changing trolley, characterized in that: Includes a pallet (1), with guardrails (2) on both sides of the pallet (1), and guide rails (3) on the opposite side of each of the two guardrails (2), and the guide rails (3) on the two guardrails (2) are arranged opposite to each other. A roller is arranged between the two guardrails (2), and support blocks (9) are arranged at both ends of the roller. The two ends of the support blocks (9) are respectively attached to the corresponding guide rails (3).

2. The rolling mill roll changing trolley according to claim 1, characterized in that: An extension railing (21) is also provided above the guardrail (2), and the extension railing (21) and the guardrail (2) are fixedly connected by bolts.

3. The rolling mill roll changing trolley according to claim 1, characterized in that: The upper surface of the guide rail (3) is provided with a plurality of evenly distributed rollers (4), one end of the guide rail (3) is provided with a limit block (5), and the other end is provided with a locking element (6).

4. A rolling mill roll changing trolley according to claim 3, characterized in that: The locking member (6) includes a stop (61) inserted into the upper surface of the guide rail (3). The side of the stop (61) away from the limiting block (5) is set as an inclined surface. Along the direction away from the limiting block (5), the inclined surface is inclined toward the guide rail (3). The lower end of the stop (61) is provided with a support spring (62) connected to the guide rail (3).

5. A rolling mill roll changing trolley according to claim 4, characterized in that: The guide rail (3) is also provided with a top block (63) and is slidably connected to the guide rail (3). A lead screw (64) is rotatably connected to one side of the guide rail (3). The lead screw (64) is threadedly connected to the top block (63). The stop block (61) is provided with a groove at one end facing the top block (63), and the lower side of the groove is inclined. The top block (63) abuts against the lower side of the groove.

6. A rolling mill roll changing trolley according to claim 1, characterized in that: Multiple evenly distributed support wheels (11) are rotatably connected to both sides below the tray (1). A lifting ring is provided below the tray (1), and a power component is connected to the lifting ring.

7. A rolling mill roll changing trolley according to claim 3, characterized in that: The guide rail (3) is provided with a support rod (7) at one end away from the limiting block (5). The end of the support rod (7) near the limiting block (5) is arc-shaped and rotatably connected to the end of the guide rail (3). A buffer assembly (8) is also provided between the guide rail (3) and the support rod (7).

8. A rolling mill roll changing trolley according to claim 7, characterized in that: The buffer assembly (8) includes a fixed block (71) disposed at the arc-shaped end of the support rod (7), a buffer spring (81) is disposed between the fixed block (71) and the guide rail (3), and a buffer post (82) is disposed on the guide rail (3) facing the fixed block (71).

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