CN202045139U

CN202045139U - Rapid locking device for locking roll of tube mill

Info

Publication number: CN202045139U
Application number: CN2011201371848U
Authority: CN
Inventors: 张良夫
Original assignee: Taiyuan Heavy Industry Co Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2011-11-23
Anticipated expiration: 2021-04-29

Abstract

A rapid locking device for locking roll of tube mill relates to a steel rolling machinery and aims to solve the problem that changing the roll of existing tube mill is time-consuming and power-consuming and always negatively affects the production. The rapid locking device connects the roll with a roll box using a locking element and a pressure plate; the locking element comprises a rotary cylinder, a spring cylinder, a support, a sliding key, a sleeve, and a fixing pin; the cylinder body of the rotary cylinder is fixed with the support with a bolt; the mandrel of the rotary cylinder is slidably connected with the sleeve with the sliding key; the sleeve is connected with the upper portion of the piston rod of the spring cylinder with the fixing pin; one end of the support is fixed with the cylinder body of the spring cylinder with a bolt; the cylinder body of the spring cylinder is placed in the roll box together with the piston rod and connected with the upper end of the roll box with a bolt; a thread is processed on the end portion of the piston rod of the spring cylinder; the piston rod extends out of the bottom of the roll box and is connected with the pressure plate with a nut. The rapid locking device is used for changing the roll of tube mill with the roll changing time shortened, the labour intensity reduced and the production efficiency improved.

Description

A kind of rolling mill roller quick-locking device

Technical field

The utility model belongs to rolling machinery, the particularly roll of pipe mill locking in the seamless steel tube production.

Background technology

In seamless steel tube production, pipe mill utilizes roll to come rolled steel tube, just can wear and tear behind the steel pipe of the rolling some of roll, and roll needs often to change.The retaining mechanism of rolling mill roller generally is with locking member 1 and pressing plate 2 roll 4 and roll-box 3 to be compressed.The retaining mechanism of existing rolling mill roller, as shown in Figure 1, locking member 1 is 8 bolts.When changing roll, need manually turn on bolt and just can take off roll, more exchange treaties needs about 6 hours at every turn, has seriously influenced production.How to save the time of changing roll, become the subject matter that improves seamless steel tube production efficient.

The utility model content

The purpose of this utility model is intended to overcome the deficiencies in the prior art, and a kind of rolling mill roller quick-locking device is provided, and solves existing pipe mill and changes time-consuming, the effort of roll, the problem that influence is produced.

The utility model is achieved through the following technical solutions:

A kind of rolling mill roller quick-locking device connects roll with locking member and pressing plate with roll-box; It is characterized in that: described locking member comprises: rotating cylinder, spring cylinder, support, slide key, sleeve, steady pin, the cylinder body of described rotating cylinder is fixed with bolt and described support, the mandrel of described rotating cylinder is slidingly connected by described slide key and described sleeve, and described sleeve connects with the piston rod top of described spring cylinder by described steady pin; Described support one end is fixed with the cylinder body of bolt and described spring cylinder, and the cylinder body of described spring cylinder is inserted in the roll-box together with piston rod, and connects with described roll-box upper end with the cylinder body portion of bolt with described spring cylinder; The piston rod end of described spring cylinder is provided with screw thread, and the piston rod of described spring cylinder connects with pressing plate by nut after stretching out described roll-box bottom, and described pressing plate can be pressed on roll in the roll-box.

After the piston of described spring cylinder, its stroke should satisfy described pressing plate and described roll-box and leave, can conveniently unload described roll.

The piston rod of described spring cylinder is an elongated elongate rod.

The utility model compared with prior art, owing to changed the connecting mode that directly compresses in the past, adopted the structure of spring cylinder locking, during the maintenance roll change with bolt and pressing plate, as long as primer fluid pressing system, the spring cylinder pine is pressed, and rotates rotating cylinder again, and roll just can be unloaded down automatically, saved artificial the turn of the screw, save roll changing time greatly, improved labour intensity, improved productivity ratio.

Description of drawings

Fig. 1 is that existing roll connects schematic diagram;

Fig. 2 is that roll of the present utility model connects schematic diagram;

Fig. 3 is a structural representation of the present utility model.

The utility model is elaborated by preferred embodiment below in conjunction with accompanying drawing.

The specific embodiment

Shown in Fig. 2,3, a kind of rolling mill roller quick-locking device connects roll 4 with locking member 1 and pressing plate 2 with roll-box 3; Described locking member 1 comprises: rotating cylinder 1-1, spring cylinder 1-2, support 1-3, slide key 1-4, sleeve 1-5, steady pin 1-6, the cylinder body 1-1-1 of described rotating cylinder 1-1 fixes with described support 1-3 with bolt 5, the mandrel 1-1-2 of described rotating cylinder 1-1 is slidingly connected by described slide key 1-4 and described sleeve 1-5, and described sleeve 1-5 connects with the piston rod 1-2-1 top of described spring cylinder 1-2 by described steady pin 1-6; Described support 1-3 one end is fixed with the cylinder body 1-2-2 of bolt 6 with described spring cylinder 1-2, the cylinder body 1-2-2 of described spring cylinder inserts in the roll-box 3 together with piston rod 1-2-1, and connects with described roll-box 3 upper ends with the cylinder body 1-2-2 top of bolt 7 with described spring cylinder; The piston rod 1-2-1 end of described spring cylinder is provided with screw thread, and the piston rod 1-2-1 of described spring cylinder connects with pressing plate 2 by nut 2-1 after stretching out described roll-box 3 bottoms, and described pressing plate 2 can be pressed on roll 4 in the roll-box 3.

After the piston 1-2-3 of described spring cylinder 1-2, its stroke should satisfy described pressing plate 2 and leave with described roll-box 3, can conveniently unload described roll 4.

The piston rod 1-2-1 of described spring cylinder is an elongated elongate rod, is convenient to push down roll 4.

Described rotating cylinder mandrel 1-1-2 can rotate, and just can load onto or lay down pressing plate 2 during rotation; Described spring cylinder piston rod 1-2-1 can the direct-axis line motion, rely on pressing plate 2 compress roll 4 end face reach the locking purpose.

The course of work of the present utility model:

Shown in Fig. 2,3, open oil pump, to oil-in 1-2-4 oiling, promote piston 1-2-3 downwards, the piston rod 1-2-1 drive pressing plate 2 of spring cylinder is moved downward, and pressing plate 2 unclamps with roll 4, the mandrel 1-1-2 rotation of rotating cylinder, make the nut 2-1 on the pressing plate 2 unclamp, unload lower platen, just can take out roll 4.When needs dress roll 4, reverse operating, to oil-in 1-2-5 oiling, upwards promote piston 1-2-3, make the piston rod 1-2-1 of spring cylinder drive pressing plate 2 and move upward, pressing plate 2 is close to roll 4, again with the mandrel 1-1-2 reverse rotation of rotating cylinder, nut 2-1 on the pressing plate 2 is tightened, and roll 4 just is locked in the roll-box 3.

Claims

1. a rolling mill roller quick-locking device connects roll (4) with locking member (1) and pressing plate (2) with roll-box (3); It is characterized in that: described locking member (1) comprising: rotating cylinder (1-1), spring cylinder (1-2), support (1-3), slide key (1-4), sleeve (1-5), steady pin (1-6), the cylinder body (1-1-1) of described rotating cylinder (1-1) is fixing with bolt (5) and described support (1-3), the mandrel (1-1-2) of described rotating cylinder (1-1) is slidingly connected by described slide key (1-4) and described sleeve (1-5), and described sleeve (1-5) connects with piston rod (1-2-1) top of described spring cylinder (1-2) by described steady pin (1-6); Described support (1-3) end is fixing with the cylinder body (1-2-2) of described spring cylinder (1-2) with bolt (6), the cylinder body of described spring cylinder (1-2-2) is inserted in the roll-box (3) together with described piston rod (1-2-1), and connects with described roll-box (3) upper end with cylinder body (1-2-2) top of bolt (7) with described spring cylinder; The piston rod of described spring cylinder (1-2-1) end is provided with screw thread, after the piston rod of described spring cylinder (1-2-1) stretches out described roll-box (3) bottom, connect with pressing plate (2) by nut (2-1), described pressing plate (2) can be pressed on roll (4) in the roll-box (3).

2. according to the described rolling mill roller quick-locking device of claim 1, it is characterized in that: after the piston (1-2-3) of described spring cylinder (1-2), its stroke should satisfy described pressing plate (2) and described roll-box (3) and leave, can conveniently unload described roll (4).

3. according to the described rolling mill roller quick-locking device of claim 1, it is characterized in that: the piston rod of described spring cylinder (1-2-1) is an elongated elongate rod.