CN217798070U

CN217798070U - Roughing mill capable of improving stability of roller groove replacement

Info

Publication number: CN217798070U
Application number: CN202221299968.5U
Authority: CN
Inventors: 吴贵文; 李海英; 白小龙
Original assignee: Jilin Xinda Iron and Steel Co Ltd
Current assignee: Jilin Xinda Iron and Steel Co Ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-11-15
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a can improve roughing mill of changing roll groove stability, the technical field of equipment for the steel rolling that belongs to. The rolling mechanism comprises an upper roller, a lower roller, a bracket and a guide block, wherein the upper roller and the lower roller are correspondingly arranged on the bracket, and a plurality of parallel roller grooves are respectively arranged on the upper roller and the lower roller; the guide block with the support bottom is connected, is equipped with the guide rail in the base, the guide block is located in the guide rail of base, set up fixed establishment around the support, fixed establishment's stiff end is installed on the base. It has avoided effectively because not hard up that hydraulic oil leaks and leads to has add locking mechanism, even if hydraulic oil leakage appears in first oil section of thick bamboo, also can not influence the roof pressure of kicking block to the fixed block. The stability and the safety of the equipment are effectively improved.

Description

Roughing mill capable of improving stability of replacing roller groove

Technical Field

The utility model belongs to the technical field of equipment for the steel rolling, especially, can improve the roughing mill who changes roll groove stability.

Background

The roughing mill is a device for realizing the metal rolling process, and generally refers to a device for completing the whole process of rolled material production. The roughing mill is mainly used for rolling unformed metal billets into pipes or plates made of required metal materials. The roller is fixed on the support, the roller groove of the roller is easy to wear, the steel rolling quality can be affected, corresponding equipment is needed to be replaced or corrected, the fixed position is often required to be pressed by the oil cylinder in order to guarantee the stability of the roller, otherwise, the stability of the roller can be affected, and the processing quality is further affected.

However, the existing locking cylinder is completely locked by oil pressure, the stroke of the locking cylinder is long and reaches 90mm, a connecting pipeline between the locking cylinder and a valve table is long, and the locking cylinder is pressed against a piston to move due to the leakage of the pipeline, the leakage of a control valve, the leakage of an oil cylinder and other reasons in the using process, so that the locking failure is caused.

Disclosure of Invention

The utility model provides a can improve the roughing mill of changing roll slot stability, its locking roll roller mechanism that can be stable to guarantee the quality of roughing process.

The utility model solves the technical problem through the following technical proposal,

the roughing mill capable of improving the stability of replacing the roll grooves comprises a roll mechanism, a base and a fixing mechanism, wherein the roll mechanism comprises an upper roll, a lower roll, a support and a guide block, the upper roll and the lower roll are correspondingly arranged on the support, and a plurality of parallel roll grooves are respectively arranged on the upper roll and the lower roll; the guide block with the support bottom is connected, is equipped with the guide rail in the base, the guide block is located in the guide rail of base, set up fixed establishment around the support, fixed establishment's stiff end is installed on the base.

The roughing mill capable of improving the stability of the roller groove replacement is characterized in that the fixing mechanism comprises a jacking block, a fixing block, a jacking oil cylinder and a locking mechanism, the fixing block is fixedly connected with the support, the jacking oil cylinder comprises a first oil cylinder, a jacking piston, a left jacking rod and a right jacking rod, the first oil cylinder is fixed on the base, the first oil cylinder is transversely arranged and is of a closed structure, oil holes are formed in two ends of the first oil cylinder, the jacking piston is located in the first oil cylinder, the left jacking rod and the right jacking rod are respectively connected to two sides of the jacking piston, the left end of the left jacking rod penetrates out of the oil cylinder, the locking mechanism is arranged below the left jacking rod, the right end of the right jacking rod penetrates out of the oil cylinder and is connected with the jacking block, and the shape of the jacking block is identical to that of the fixing block.

According to the roughing mill capable of improving the stability of replacing the roller groove, the locking mechanism comprises a second oil cylinder, a lifting piston, a return spring and a piston rod which are longitudinally arranged, the lifting piston is arranged in the second oil cylinder, the return spring is abutted between the bottom of the lifting piston and the bottom wall of the second oil cylinder, the bottom of the piston rod is connected with the lifting piston, the top end of the piston rod penetrates through the second oil cylinder and then is connected with a locking block, and a bushing is arranged between the piston rod and the second oil cylinder; and a locking hole is formed in the bottom of the left ejector rod, and an oil hole of the second oil cylinder is located above the lifting piston.

According to the roughing mill capable of improving the stability of the roller groove to be replaced, the fixing block is a wedge-shaped block with a wide lower part and a narrow upper part, the ejector block is a wedge-shaped block with a wide upper part and a narrow lower part, and the ejector block can be ejected against the fixing block.

According to the roughing mill capable of improving the stability of replacing the roller groove, the oil hole of the first oil cylinder and the oil hole of the second oil cylinder are connected with the oil station through the oil pipe, and the oil pipe is provided with the pumping mechanism and the valve; a sealing ring is arranged between the lifting piston and the inner wall of the second oil cylinder, and a sealing ring is arranged between the left ejector rod and the first oil cylinder and between the right ejector rod and the first oil cylinder.

Compared with the prior art, the utility model discloses avoided effectively because the not hard up that hydraulic oil leaks and leads to has add locking mechanism, even if hydraulic oil leakage appears in first oil section of thick bamboo, also can not influence the roof pressure of kicking block to the fixed block. The stability and the safety of the equipment are effectively improved.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of the fixing mechanism of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

reference numerals in the drawings denote: 1. the device comprises a base, a fixing mechanism 2, an upper roller 3, a lower roller 4, a support 5, a support 6, a top block 7, a fixing block 8, a top pressing oil cylinder 9, a first oil cylinder 10, a top pressing piston 11, a left top rod 12, a right top rod 12, a second oil cylinder 13, a lifting piston 14, a reset spring 15, a top rod 16, a locking block 17, a locking hole 18 and an oil station 19.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention.

Referring to the attached drawings 1 to 3, the utility model comprises a roller mechanism, a base 1 and a fixing mechanism 2, wherein the roller mechanism comprises an upper roller 3, a lower roller 4, a bracket 5 and a guide block, the upper roller 3 and the lower roller 4 are correspondingly arranged on the bracket 5, and a plurality of parallel roller grooves are respectively arranged on the upper roller 3 and the lower roller 4; the guide block with 5 bottoms of support are connected, are equipped with the guide rail in the base 1, the guide block is located in the guide rail of base 1, support 5 sets up fixed establishment 2 all around, the stiff end of fixed establishment 2 is installed on the base 1. Through the arrangement, the roll groove on the upper roll 3 and the roll groove on the lower roll 4 carry out rough rolling on steel, but when the roll grooves are excessively worn, the roll grooves can be replaced by moving the movable support 5, and then the support 5 can be fixed through the fixing mechanism 2, so that the support 5 is ensured to be fixed relative to the base 1.

The fixing mechanism 2 comprises a jacking block 6, a fixing block 7, a jacking oil cylinder 8 and a locking mechanism, the fixing block 7 is fixedly connected with the support 5, the jacking oil cylinder 8 comprises a first oil cylinder 9, a jacking piston 10, a left jacking rod 11 and a right jacking rod 12, the first oil cylinder 9 is transversely arranged and is of a closed structure, oil holes are formed in two ends of the first oil cylinder 9, the jacking piston 10 is located in the first oil cylinder 9, the left jacking rod 11 and the right jacking rod 12 are respectively connected to two sides of the jacking piston 10, the left end of the left jacking rod 11 penetrates out of the first oil cylinder 9, the locking mechanism is arranged below the left jacking rod 11, the right end of the right jacking rod 12 penetrates out of the oil cylinder and then is connected with the jacking block 6, and the shape of the jacking block 6 is matched with the fixing block 7. Preferably, the fixing mechanisms 2 are arranged on the front side and the rear side of the two ends of the support 5, hydraulic oil pumped in from the left side of the jacking piston 10 and hydraulic oil pumped out from the right side of the jacking piston 10 can push the jacking piston 10 to move rightwards, so that the jacking block 6 is jacked against the fixing block 7, and then the two sides of the support 5 are fixed. Conversely, the top pressing of the top block 6 on the fixed block 7 can be released.

As the leakage of hydraulic oil can cause the position of the piston to be loose, and the stability of the bracket 5 on the base 1 is affected, a locking mechanism is arranged, the locking mechanism comprises a second oil cylinder 13, a lifting piston 14, a return spring 15 and a piston rod 16 which are longitudinally arranged, the lifting piston 14 is arranged in the second oil cylinder 13, the return spring 15 is pressed between the bottom of the lifting piston 14 and the bottom wall of the second oil cylinder 13, the bottom of the piston rod is connected with the lifting piston 14, the top end of the piston rod 16 passes through the second oil cylinder 13 and then is connected with a locking block 17, and a bushing is arranged between the piston rod 16 and the second oil cylinder 13; the bottom of the left ejector rod 11 is provided with a locking hole 18, and the oil hole of the second oil cylinder is located above the lifting piston 14. The oil hole of the first oil cylinder 9 and the oil hole of the second oil cylinder 13 are connected with an oil station 19 through oil pipes, and the oil pipes are provided with pumping mechanisms and valves. In order to reduce leakage of hydraulic oil, a sealing ring is arranged between the lifting piston 14 and the inner wall of the second oil cylinder 13, and a sealing ring is arranged between the left ejector rod 11, the right ejector rod 12 and the first oil cylinder 9. When the jacking piston 10 is in place, the jacking block 6 compresses the fixed block 7, meanwhile, along with the rightward movement of the left jacking rod 11, the locking hole 18 moves to the position above the locking block 17, the return spring 15 pushes the locking block 17 upwards to eject, so that the locking block 17 is inserted into the locking hole 18, and the locking is completed. When the locking is required to be released, hydraulic oil is pumped into the second oil cylinder 13, the lifting piston 14 moves downwards, the locking block 17 on the piston rod 16 is driven to move downwards, the locking is unlocked, and then the top block 6 can be separated from the fixed block 7 by pumping hydraulic oil into the right side of the top pressing piston 10 in the first oil cylinder 9. The return spring 15 is preferably a disc spring and is a compression spring.

In order to ensure the action effect of the fixing mechanism 2, the fixing block 7 is a wedge-shaped block with a wide lower part and a narrow upper part, the ejector block 6 is a wedge-shaped block with a wide upper part and a narrow lower part, and the ejector block 6 can be used for ejecting the fixing block 7. Therefore, when the top block 6 abuts against the fixed block 7, the top block 6 pushes the fixed block 7 obliquely downwards, and the stability of the support 5 in the guide rail of the base 1 is further ensured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A roughing mill capable of improving the stability of replacing roller grooves is characterized by comprising a roller mechanism, a base (1) and a fixing mechanism (2), wherein the roller mechanism comprises an upper roller (3), a lower roller (4), a bracket (5) and a guide block, the upper roller (3) and the lower roller (4) are correspondingly arranged on the bracket (5), and the upper roller (3) and the lower roller (4) are respectively provided with a plurality of parallel roller grooves; the guide block with support (5) bottom is connected, is equipped with the guide rail in base (1), the guide block is located in the guide rail of base (1), support (5) set up fixed establishment (2) all around, the stiff end of fixed establishment (2) is installed on base (1).

2. The roughing mill capable of improving the stability of the roller groove replacement according to claim 1, wherein the fixing mechanism (2) comprises a jacking block (6), a fixing block (7), a jacking cylinder (8) and a locking mechanism, the fixing block (7) is fixedly connected with the support (5), the jacking cylinder (8) comprises a first oil cylinder (9), a jacking piston (10), a left ejector rod (11) and a right ejector rod (12), the first oil cylinder (9) is fixed on the base (1), the first oil cylinder (9) is transversely arranged and is of a closed structure, oil holes are formed in two ends of the first oil cylinder (9), the jacking piston (10) is located in the first oil cylinder (9), the left ejector rod (11) and the right ejector rod (12) are respectively connected to two sides of the jacking piston (10), the left end of the left ejector rod (11) penetrates through the oil cylinder, the locking mechanism is arranged below the left ejector rod (11), the right ejector rod (12) penetrates through the oil cylinder and is connected with the right end of the jacking block (6), and the shape of the fixing block (7) is identical to that of the jacking cylinder (6).

3. The roughing mill capable of improving the stability of the roller slot replacement as recited in claim 2, wherein said locking mechanism comprises a second oil cylinder (13) arranged longitudinally, a lifting piston (14), a return spring (15) and a piston rod (16), said lifting piston (14) is arranged in said second oil cylinder (13), said return spring (15) is pressed between the bottom of said lifting piston (14) and the bottom wall of said second oil cylinder (13), the bottom of said piston rod is connected with said lifting piston (14), the top end of said piston rod (16) passes through said second oil cylinder (13) and is connected with a locking block (17), and a bushing is arranged between said piston rod (16) and said second oil cylinder (13); the bottom of the left ejector rod (11) is provided with a locking hole (18), and an oil hole of the second oil cylinder is located above the lifting piston (14).

4. Roughing mill with improved roll groove change stability according to claim 3 characterized in that said fixed block (7) is a wedge with a wide bottom and narrow top and said top block (6) is a wedge with a wide top and narrow bottom, said top block (6) being able to press against said fixed block (7).

5. Roughing mill capable of improving the stability of the roll groove change according to claim 4, characterised in that the oil hole of the first oil cylinder (9) and the oil hole of the second oil cylinder (13) are connected to the oil station (19) through oil pipes, on which pumping means and valves are arranged; a sealing ring is arranged between the lifting piston (14) and the inner wall of the second oil cylinder (13), and a sealing ring is arranged between the left ejector rod (11) and the first oil cylinder (9) and between the right ejector rod (12).