CN206653343U - A kind of milling train assembles special tooling - Google Patents

Abstract

The utility model discloses a special tool for rolling mill assembly, which includes a booster rod. There are at least two pin shafts between the discs and they are evenly arranged along the circumferential direction of the discs. The lower ends of the pin shafts pass through the lower disc and protrude below the lower disc to form a process on the copper nut. The plug-in structure matches the hole, and there is a socket on the side wall of the upper disc. One end of the booster rod is plugged and locked with the upper disc by means of the jack, and the other end protrudes outside the upper disc to form a grip. department. Use the afterburner rod to drive the upper disk to rotate, and the upper disk drives the copper nut to rotate through the pin shaft and the lower disk to complete the disassembly process. The structure is simple, the disassembly and assembly are convenient and fast, saving time and effort, which can shorten the maintenance time and improve the work efficiency. efficiency.

Description

A special tooling for rolling mill assembly

technical field

The utility model belongs to the technical field of rolling mill auxiliary equipment and relates to a special tool for rolling mill assembly.

Background technique

The stable operation of the equipment is the basis for ensuring the stable and high production of the steel rolling production line. Careful maintenance of equipment is a necessary guarantee to ensure the stable operation of the equipment. Appropriate tools can ensure that equipment maintenance personnel can repair and maintain the equipment in a timely and convenient manner. Due to the large number of rolling mill equipment in the steel rolling production line, after a certain period of use, it is necessary to carry out maintenance and replace some vulnerable parts. Among them, the copper nut of the rolling mill column is an important part of the rolling mill and needs to be replaced regularly. The existing copper nuts are disassembled. Inserting a booster rod into the process hole on the upper end of the copper nut, and then manually applying force to the booster rod, using the booster rod to drive the copper nut to rotate, is time-consuming and laborious, and the maintenance efficiency is low.

Contents of the invention

In order to overcome the defects of the prior art, the utility model designs a special tool for rolling mill assembly, which is more convenient when disassembling copper nuts, can shorten maintenance time, and makes maintenance personnel more convenient when disassembling copper nuts.

The specific technical solution adopted by the utility model is: a special tool for rolling mill assembly, including a booster rod, the key is: the tool also includes an annular upper disc and a lower disc, and a coaxial The pin shaft between the upper disc and the lower disc has at least two pin shafts and is evenly arranged along the circumferential direction of the disc, and the lower end of the pin shaft passes through the lower disc and protrudes below the lower disc to form a The plug-in structure matches the process hole on the copper nut. There is a jack hole on the side wall of the upper disc. The outside of the disc is formed as a grip.

The pin shaft includes an upper connecting rod, a support shaft, a lower connecting rod, and an insertion rod arranged in sequence from top to bottom and are coaxially arranged. The diameters of the upper connecting rod and the lower connecting rod are equal and are smaller than the diameter of the supporting shaft and larger than The diameter of the insertion rod, the upper connecting rod and the upper disc are inserted and fixed, the lower connecting rod and the lower disc are inserted and fixed to form a positioning structure for the support shaft, and the lower end surface of the lower connecting rod is located under the lower disc to form a positioning structure for the copper nut structure.

Both the support shaft and the upper disc, and the support shaft and the lower disc are fixed by welding.

The socket on the upper disc is a through hole penetrating through the side wall of the upper disc.

The number of the jacks is four and all the jacks are evenly arranged along the circumferential direction of the upper disc.

The number of the pin shafts is four, and all the pin shafts are evenly arranged along the circumferential direction of the upper disc, and the pin shafts and the sockets are arranged alternately.

The beneficial effects of the utility model are: when disassembling, the upper disc and the lower disc are set on the outside of the column, and the pin shaft located under the lower disc is inserted into the process hole on the upper end surface of the copper nut, locked and fixed, Then insert the booster rod into the jack on the upper disc, the operator holds the booster rod to rotate, thereby driving the copper nut to rotate, and completes the disassembly process. Shorten maintenance time and improve work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of the upper disk in Fig. 1 .

Fig. 3 is a top view of the lower disk in Fig. 1 .

Fig. 4 is a schematic structural diagram of the pin shaft in Fig. 1 .

In the accompanying drawings, 1 represents the upper disc, 2 represents the lower disc, 3 represents the pin shaft, 301 represents the upper connecting rod, 302 represents the supporting shaft, 303 represents the lower connecting rod, 304 represents the insertion rod, and 4 represents the socket.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

Concrete embodiment, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of special tooling for rolling mill assembly, comprising a booster bar, also includes an annular upper disc 1 and a lower disc 2, and fixed on the same There are at least two pin shafts 3 between the upper disk 1 and the lower disk 2 arranged on the axis, and the number of pin shafts 3 is evenly arranged along the circumferential direction of the disk. The lower end of the pin shaft 3 passes through the lower disk 2 The back protrudes below the lower disc 2 to form a plug-in structure that matches the process hole on the copper nut. A socket 4 is opened on the side wall of the upper disc 1, and one end of the booster rod is connected to the upper disc by means of the jack 4. The disk 1 is plugged and locked, and the other end protrudes from the outside of the upper disk 1 to form a grip.

The number of pin shafts 3 is four, and all pin shafts 3 are evenly arranged along the circumferential direction of the upper disc 1 and the pin shafts 3 and the sockets 4 are arranged alternately, so that the connection between the upper disc 1 and the lower disc 2 Solid and reliable. The number of jacks 4 is four and all the jacks 4 are evenly arranged along the circumferential direction of the upper disc 1. The operator can apply force to the tooling from different positions to complete the disassembly process of the copper nut, and four people can Simultaneously apply force to the tooling from different positions to reduce the labor intensity of each operator. The axis of the socket 4 is arranged along the horizontal direction, which makes the operator save more effort when rotating the copper nut. The socket 4 on the upper disc 1 is a through hole through the side wall of the upper disc 1, so that the booster rod can penetrate the side wall of the upper disc 2 to reach the inside of the ring structure, and the booster rod can be prevented from slipping during operation. Safer and more reliable. In order to further improve the reliability of the connection between the booster rod and the upper disc 2, a Tang thread is provided on the outer wall of the end of the through hole through which the booster rod passes, and two nuts are arranged on the Down thread, and the two nuts The direction of rotation and locking is opposite to form a Tang's anti-loosening structure. In order to prevent the nut from wearing and tearing the upper disc 2, an elastic washer is set on the booster rod, and the elastic washer is located between the nut close to the upper disc 2 and the upper disc 2, and the thickness of the elastic washer is greater than or equal to 5mm.

As a further improvement to the present utility model, the pin shaft 3 includes an upper connecting rod 301, a supporting shaft 302, a lower connecting rod 303, and an inserting rod 304 arranged in sequence from top to bottom and coaxially arranged, and the supporting shaft 302 and the upper disc 1 Between them, between the support shaft 302 and the lower disk 2, all are welded and fixed, and the connection is more firm and reliable. The diameters of the upper connecting rod 301 and the lower connecting rod 303 are equal and both are smaller than the diameter of the support shaft 302 and larger than the diameter of the insertion rod 304. The upper connecting rod 301 is plugged and fixed with the upper disc 1, and the lower connecting rod 303 is plugged with the lower disc 2. Fix the positioning structure formed as the support shaft 302, so that when the lower end of the pin shaft 3 is inserted into the lower disc 2, and when the upper end of the pin shaft 3 is inserted into the upper disc 1, it can be quickly determined whether the insertion is in place. The positioning structure is set so that It is more convenient and quick to weld, saving time and effort. The lower end surface of the lower connecting rod 303 is located below the lower disc 2 to form a positioning structure for the copper nut, so that after the insert rod 304 is inserted into the process hole of the copper nut, the upper end surface of the copper nut can be prevented from directly contacting the lower disc 2 However, the upper end surface of the copper nut is worn during the assembly and disassembly process, which can prolong the service life of the copper nut.

When the utility model is actually implemented: the upper disc 1 and the upper connecting rod 301 are plugged and fixed, then the support shaft 302 is welded and fixed with the upper disc 1, and the lower disc 2 is plugged and fixed with the lower connecting rod 303, so that The upper end surface of the lower disc 2 is in close contact with the lower end surface of the support shaft 302 and fixed by welding. When disassembling, put the upper disc 1 and the lower disc 2 on the outside of the column, and insert the insertion rod 304 located below the lower disc 2 into the process hole on the upper end surface of the copper nut, insert and lock them, and then place them on the upper The booster rod is inserted into the socket 4 of the disc 1, and the operator holds the booster rod to rotate, thereby driving the copper nut to rotate to complete the disassembly process. The structure is simple, the disassembly and assembly are convenient and quick, saving time and effort, and can shorten maintenance time and improve work efficiency.

Claims (6)

1. A special tool for rolling mill assembly, including a booster rod, characterized in that: the tool also includes an annular upper disc (1) and a lower disc (2), and an upper disc fixed on the coaxial The pin shaft (3) between the disc (1) and the lower disc (2), the number of pin shafts (3) is at least two and arranged evenly along the circumferential direction of the disc, the lower end of the pin shaft (3) passes through After passing through the lower disc (2), it protrudes below the lower disc (2) to form a plug-in structure that matches the process hole on the copper nut, and an insertion hole (4) is opened on the side wall of the upper disc (1) One end of the booster rod is plugged and locked with the upper disc (1) by means of the socket (4), and the other end protrudes outside the upper disc (1) to form a gripping portion. 2. A special tool for rolling mill assembly according to claim 1, characterized in that: said pin shaft (3) includes an upper connecting rod (301) arranged coaxially and arranged in sequence from top to bottom, a support shaft (302), lower connecting rod (303), inserting rod (304), the diameters of upper connecting rod (301) and lower connecting rod (303) are equal and all less than the support shaft (302) diameter, greater than the inserting rod (304) diameter , the upper connecting rod (301) is plugged and fixed with the upper disc (1), the lower connecting rod (303) is plugged and fixed with the lower disc (2) to form a positioning structure for the support shaft (302), and the lower connecting rod (303 ) is located below the lower disc (2) to form a copper nut positioning structure. 3. A special tool for rolling mill assembly according to claim 2, characterized in that: between the support shaft (302) and the upper disc (1), between the support shaft (302) and the lower disc (2) Between are welded fixed. 4. A special tool for rolling mill assembly according to claim 1, characterized in that: the insertion hole (4) on the upper disc (1) is a through hole penetrating through the side wall of the upper disc (1). 5. A special tool for rolling mill assembly according to claim 1, characterized in that: the number of the sockets (4) is four and all the sockets (4) are along the circumferential direction of the upper disc (1) Arrange evenly. 6. A special tool for rolling mill assembly according to claim 1, characterized in that: the number of the pin shafts (3) is four, and all the pin shafts (3) are along the circumferential direction of the upper disk (1) They are evenly arranged and the pin shafts (3) and the jacks (4) are arranged alternately.