Quick dismounting device for roll collar of rolling mill

Abstract

The quick dismounting device comprises a box type machine body, bearing plates, a supporting plate and a hydraulic rod, the top face of the box type machine body and the side face corresponding to the short edge side of any top face are arranged in an open mode, the two bearing plates are vertically and fixedly connected to the inner bottom face of the machine body at equal intervals, and the supporting plate is horizontally and fixedly connected to the box type machine body. The hydraulic rods are coaxially arranged with the axis of the machine body and located between the side plates of the machine body and the adjacent bearing plates, the hydraulic rods are installed on the supporting plates, the front ends of pistons of the hydraulic rods are fixedly connected with rectangular pyramid top blocks, U-shaped grooves are formed in the upper portions of the bearing plates, a plurality of installation holes are formed in the top faces of the grooves at equal intervals, and ball sleeves are installed on the installation holes. A spring is arranged between the ball sleeve and the mounting hole, and a plurality of cylindrical ejector blocks are arranged on the inner side face of the outer bearing plate along the U-shaped groove. The device can be used for quickly dismounting the rolling mill roll collar without damaging the roll collar.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron and steel metallurgy, and in particular relates to a quick disassembly device for a roller ring of a rolling mill. Background Art

[0002] At present, in the production of high-strength bar wire, tungsten carbide roller ring is an important consumable spare part of the rolling mill, but the RVM330 roller ring alone is very heavy, weighing 98KG, and it is extremely inconvenient to disassemble and maintain. At present, after the RVM330 roller ring is processed, it is necessary to use a crane to move the roller ring away from the thread machine, and then two people are required to use a copper rod to gently tap the tungsten carbide roller ring to loosen the roller and the roller ring, and then the roller ring can be removed from the surface of the roller. When the copper rod is used to gently tap the tungsten carbide roller ring, the surface of the roller ring may be worn. This method needs to rely entirely on manpower, which is both time-consuming and labor-intensive. The operation efficiency is low.

[0003] Due to the above situation, the maintenance, inspection and replacement of the roll ring directly affect the normal working efficiency, so there is an urgent need for a device that can quickly disassemble the roll ring of the rolling mill. Utility Model Content

[0004] The utility model aims to provide a quick disassembly device for a rolling mill roll ring, which can quickly disassemble the rolling mill roll ring without causing damage to the roll ring.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is: a quick disassembly device for a rolling mill roll ring,

[0006] It includes a box-type body, a load-bearing plate, a support plate, and a hydraulic rod. The top surface of the box-type body and the side surfaces corresponding to the short sides of any one of the top surfaces are openly arranged. Two load-bearing plates are vertically fixedly connected at equal intervals on the inner bottom surface of the body. The support plate is horizontally fixedly connected to the box-type body, coaxially arranged with the axis of the body, located between the side plate of the body and the adjacent load-bearing plate, and the support plate is perpendicular to the load-bearing plate. The hydraulic rod is installed on the support plate, and the front end of the piston of the hydraulic rod is fixedly connected with a quadrangular pyramid top block. A U-shaped groove is arranged on the upper part of the load-bearing plate, and a plurality of mounting holes are arranged at equal intervals on the top surface of the groove. Ball bearing sleeves are installed on the mounting holes, and springs are arranged between the ball bearing sleeves and the mounting holes. A plurality of cylindrical top blocks are arranged along the U-shaped groove on the inner side surface of the outer load-bearing plate.

[0007] The top surface of the support plate is cut obliquely and flush with the bottom end of the U-shaped groove of the load-bearing plate, and the support plate passes through the load-bearing plate.

[0008] Preferably, the portion of the support plate that passes through the load-bearing plate is in an arc shape, and the lowest point of the upper surface of the arc shape is beveled and flush with the bottom end of the U-shaped groove of the load-bearing plate.

[0009] The top surface of the support plate is flush with the top tangent line of the lowermost top block.

[0010] Hanging rings are arranged at four corners of the upper part of the machine body.

[0011] The four corners of the bottom of the machine body are provided with walking wheels with locking mechanisms.

[0012] The plurality of top blocks are three in number and distributed in a triangle.

[0013] The utility model has a simple structure, uses a box-type body to support the roller ring and the shaft rod, has a stable structure, and can effectively prevent accidental slippage. At the same time, the semi-circular arc limit card on the upper end of the load-bearing plate has a buffering and auxiliary shaft movement function. When the hydraulic rod is used to push the roller ring shaft, it is more labor-saving and reduces damage to the shaft rod; the roller ring can be effectively supported by a reasonably set cylindrical top block, avoiding damage to the roller ring caused by manual knocking in the original operation. In addition, the utility model is provided with a variety of device movement schemes, and has more usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a bottom view of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the utility model at A;

[0018] Figure 5 It is a schematic diagram of the roller ring of the utility model in a disassembled state.

[0019] In the figure: 1. box-type machine body; 2. load-bearing plate; 3. hydraulic rod; 4. walking wheel; 5. support plate; 6. top block; 7. pull rod; 9. ball sleeve; 10. spring; 23. brake disc; 24. roller. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Example 1

[0022] like Figure 1 - Figure 5A quick disassembly device for a rolling mill roll ring comprises a box-type machine body 1, a load-bearing plate 2, a support plate 5, and a hydraulic rod 3. The box-type machine body is a rectangular box body, 1000 mm long, 410 mm wide, and 350 mm high. Its top and right sides are open. Two load-bearing plates 2 are vertically fixedly connected at equal intervals on the inner bottom surface of the machine body 1. The load-bearing plates 2 are perpendicular to the front and rear side walls of the box-type machine body and are fixedly connected to the front and rear side walls. After the connection, the structure is more stable. The support plate 5 is horizontally fixedly connected to the box-type machine body 1, with a thickness of 30 mm. It is coaxially arranged with the axis of the machine body 1, one end is fixedly connected to the left side wall of the machine body, and the other end is fixedly connected to the adjacent load-bearing plate 2 and passes through the load-bearing plate. The top surface of the support plate is cut flush with the bottom end of the U-shaped groove of the load-bearing plate, and passes through the load-bearing plate 2. The support plate is used to support the shaft of the roller ring, which is beneficial to the position adjustment of the roller ring device after placement and prevents damage to the shaft due to imbalance. It should be noted that this penetrating part of the support plate can also be set as an arc-shaped plate. At this time, the lowest point of the upper surface of the arc is flush with the bottom end of the U-shaped groove of the bearing plate. The arc can semi-enclose the shaft, and the support effect is better. A hydraulic rod 3 is installed on the support plate. The front end of the piston of the hydraulic rod is fixedly connected with a four-sided pyramid top block for pushing the shaft rod. A U-shaped groove is arranged on the upper part of the bearing plate 2. The width of the U-shaped groove is 170mm. The U-shaped groove is mainly used for clamping the shaft rod part. Several mounting holes are arranged at equal intervals on the top surface of the groove. Ball sleeves 9 are installed on the mounting holes. A spring 10 is arranged between the ball sleeves 9 and the mounting holes. When the roller ring device is hoisted on the equipment, the spring can buffer its gravity to prevent it from colliding with the bearing plate. At the same time, the ball sleeve can reduce the friction between the shaft rod and the bearing plate when the hydraulic cylinder pushes the shaft rod, thereby reducing damage to the shaft rod. The outer bearing plate 2 Three cylindrical top blocks 6 with a diameter of 60 mm are arranged along the U-shaped groove on the inner side surface, distributed in a triangle, with the bottom one located directly below the U-shaped groove. The top surface of the support plate is flush with the top tangent of the bottom top block to ensure the horizontality of the shaft rod. The other two top blocks 6 are symmetrically arranged on the left and right sides of the U-shaped groove. The three top blocks 6 form an effective support for the roller ring. The four corners of the bottom of the machine body 1 are provided with walking wheels 4 with locking mechanisms. The locking device used in this embodiment is to set a disc brake pad on the walking path, and use the brake wire to pull the brake to clamp the brake pad for braking. The brake wire is controlled by the pull rod 7.

[0023] When in use, the roller ring 27 device is hoisted as a whole above the device of the present application using a hoist, and then the shaft of the roller ring is placed corresponding to the two load-bearing plates respectively, and then the position of the roller ring is adjusted using the hoisting tool so that the roller ring 27 contacts the top block, and then the hydraulic rod is started to push the roller ring shaft. The top surface of the top block forms a large-area support for the roller ring, reducing damage to the roller ring caused by knocking and disassembly. The hydraulic rod uses mechanical force to separate the shaft from the roller ring. During the separation process, the ball sleeve on the load-bearing plate contacts the roller ring shaft, thereby reducing the friction between the load-bearing plate and the shaft, which protects the shaft and reduces resistance.

[0024] Example 2

[0025] If the usage scenario is equipped with transport components such as a crane, it is also possible to set lifting rings at the four corners of the top of the box-type body and use the crane to move it. The specific moving method can be flexibly set.

Claims

1. A quick disassembly device for a rolling mill roll ring, characterized in that: It includes a box-type body, a load-bearing plate, a support plate, and a hydraulic rod. The top surface of the box-type body and the side surfaces corresponding to the short sides of any one of the top surfaces are openly arranged. Two load-bearing plates are vertically fixedly connected at equal intervals on the inner bottom surface of the body. The support plate is horizontally fixedly connected to the box-type body, coaxially arranged with the axis of the body, located between the side plate of the body and the adjacent load-bearing plate, and the support plate is perpendicular to the load-bearing plate. The hydraulic rod is installed on the support plate, and the front end of the piston of the hydraulic rod is fixedly connected with a quadrangular pyramid top block. A U-shaped groove is arranged on the upper part of the load-bearing plate, and a plurality of mounting holes are arranged at equal intervals on the top surface of the groove. Ball bearing sleeves are installed on the mounting holes, and springs are arranged between the ball bearing sleeves and the mounting holes. A plurality of cylindrical top blocks are arranged along the U-shaped groove on the inner side surface of the outer load-bearing plate.

2. The quick disassembly device for a rolling mill roll ring according to claim 1, characterized in that: The top surface of the support plate is cut obliquely and flush with the bottom end of the U-shaped groove of the load-bearing plate, and the support plate passes through the load-bearing plate.

3. The quick disassembly device for a rolling mill roll ring according to claim 2, characterized in that: The portion of the support plate that passes through the load-bearing plate is in an arc shape, and the lowest point of the upper surface of the arc shape is beveled and flush with the bottom end of the U-shaped groove of the load-bearing plate.

4. The quick disassembly device for a rolling mill roll ring according to claim 1, characterized in that: The top surface of the support plate is flush with the top tangent line of the lowermost top block.

5. The quick disassembly device for a rolling mill roll ring according to claim 1, characterized in that: Hanging rings are arranged at four corners of the upper part of the machine body.

6. The quick disassembly device for a rolling mill roll ring according to claim 1, characterized in that: The four corners of the bottom of the machine body are provided with walking wheels with locking mechanisms.

7. The quick disassembly device for a rolling mill roll ring according to claim 1, characterized in that: The plurality of top blocks are three in number and distributed in a triangle.

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