CN202683871U

CN202683871U - Novel roll gap adjusting device for high-speed wire pinch rolls

Info

Publication number: CN202683871U
Application number: CN 201220363803
Authority: CN
Inventors: 刘亮; 尹卫东; 黄立东; 年超; 崔丽荣
Original assignee: Harbin Hafei Industry Co Ltd
Current assignee: Harbin Hafei Industry Co Ltd
Priority date: 2012-07-26
Filing date: 2012-07-26
Publication date: 2013-01-23
Anticipated expiration: 2022-07-26

Abstract

The utility model discloses a novel roll gap adjusting device for high-speed wire pinch rolls. The novel roll gap adjusting device comprises a gland, a support, a worm gear, a worm, a T-shaped bolt and a key. The novel roll gap adjustment device is characterized in that the support is welded on a box body; the support is fixedly connected with the gland via the bolt; the worm is installed between the support and the gland along a shaft system; the worm gear is installed between the support and the gland as well; the worm rod is in threaded connection with the worm gear; the T-shaped bolt is connected with the worm gear via the key; and the worm gear can move up and down relative to a screw rod; and the worm is a single-head worm. The novel roll gap adjustment device disclosed by the utility model is simple in structure, convenient in detachment and replacement, high in adjustment accuracy and long in service life.

Description

A kind of Novel high-speed wire pinch roll roll gap adjustment device

Technical field

The utility model relates to high-speed rod pinch roll roll gap adjustment device, is specifically related to a kind of Novel high-speed wire pinch roll roll gap adjustment device.

Background technology

Pinch roll is indispensable capital equipment in the present high-speed wire production line, and its Main Function is with Laying head the vertical bar steel to be become level to coil.Pinch roll mainly is responsible for a bit of of the head of clamping steel or afterbody, because very fast (about 90m/s) rhythm of high-speed rod speed of production very fast (steel of about 120s) continuously production in 24 hours, need under these circumstances that pinch roll reacts agile, the roll gap clamping is accurate, safety coefficient is high.Now the roll gap opening and closing of high-speed rod pinch roll are that cooperation by cylinder link mechanism realizes, by cylinder piston rod push away, draw linkage drive the upper box of pinch roll and lower box round the fixed axis rotating photo to rising or descending, pinch roll shaft and be assemblied in the lower box, cylinder pushes away, has realized when drawing opening and clamping of pinch roll like this.When opening and clamp, all adopts pinch roll mechanical position limitation, and the amplitude that clamps and open by the stopping means adjustment, we are referred to as the pinch roll roll gap adjustment device to adjust stopping means.

Used pinch roll roll gap adjustment device is adjusted the spacing realization of bolted by screw rod, in order to realize the bolt of serration (Fig. 1) of the M48X1.5mm that precision bolt that roll gap is adjusted adopts as far as possible.Now there is following problem with guiding mechanism: 1, the bolt spacing mobile 1.5mm that rotates a circle, the roll gap control accuracy will reach in the 0.05mm, and such mechanism controls roll gap adjustment is difficult especially, and often the scene will just can reach the adjustment requirement through adjusting for several times.2, the serrated nut locking of spacing fixing employing M48X1.5mm causes the rotation of screw rod to make the roll gap that has just mixed up produce change (Fig. 3) when nut check easily.3, locking nut has applied certain pretightning force to screw rod and casing, and roll gap is closed frequently, opened the larger impact of screw rod generation, causes the closely-pitched line of screw rod and casing junction M48X1.5mm often to damage (figure 3 3).4, take out the special trouble of caging bolt when maintenance, reach 240mm pitch 1.5mm bolt will rotate for 80 weeks in the centre position could take out bolt (Fig. 5).So following requirement has been proposed the pinch roll roll gap adjustment device: simple in structure; Dismounting and change is convenient; Effective high adjustment precision and service life; Safe.

The utility model content

The purpose of this utility model provides convenient, the effectively high adjustment precision of a kind of simple in structure, dismounting and change and a kind of Novel high-speed wire pinch roll roll gap adjustment device in service life.

The purpose of this utility model is achieved in that

A kind of Novel high-speed wire pinch roll roll gap adjustment device, comprise gland, support, worm gear, worm screw, T-shaped bolt and key, support welding is on casing, support and gland are bolted to connection, worm screw is installed between support and the gland along axle system, and worm gear also is installed between support and the gland, and screw rod is threaded with worm gear, T-shaped bolt is connected with worm gear by key, and worm gear can move up and down with respect to screw rod; Described worm screw is single start worm.

The utlity model has following advantage:

1, after described pinch roll roll gap adjustment device improved, the drafts when cooperating again the pitch of T-shaped screw rod can calculate accurately the roll gap adjusting by worm gear, worm-drive improved and adjusts precision more than 4 times.

2, after described pinch roll roll gap adjustment device improves, utilize the characteristic of single start worm reverse drive self-locking to lock roll gap.

3, after described pinch roll roll gap adjustment device improves, bear the limiting locking task by worm gear, worm screw, the spacing power that T-shaped screw thread is only born clamping, opened, T-shaped screw strength improved a lot than former 1.5mm fine thread loudness, so the service life of screw thread and security improve more than 5 times.

The performance that rewind down is arranged after 4, described pinch roll roll gap adjustment device improves has improved the convenience of device dismounting, increases work efficiency.

Description of drawings

Fig. 1 is former guiding mechanism general assembly drawing;

Fig. 2 is new guiding mechanism general assembly drawing;

Fig. 3 is former reconditioner composition;

Fig. 4 is new guiding mechanism front view;

Fig. 5 is former guiding mechanism transmission schematic diagram;

Fig. 6 is new guiding mechanism transmission schematic diagram;

Fig. 7 is guiding mechanism rewind down schematic diagram;

Fig. 8 is new guiding mechanism top view;

Wherein 1, cylinder, 2, open adjusting device, 3, clamp adjusting device, 4, casing, 5, linkage, 6, upper box, 7, lower box, 8, fixed axis, 9, bolt of serration, 10 locking nuts, 11, the position that is threaded, 12, gland, 13, worm screw, 14, worm gear, 15, support, 16, T-shaped screw rod, 17, key.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Shown in Fig. 4 and 8, the utility model relates to related components to be had: gland 12, support 15, worm gear 14, worm screw 13, T-shaped bolt 16 and key 17.Support 15 is welded on the casing 4, worm screw 13 axles system and worm gear 14 are installed between support 15 and the gland 12, support 15 and gland 12 are bolted, T-shaped bolt 16 is connected with worm gear 14 by key 17, the external diameter of worm screw 13 and worm gear 14 internal diameters leave suitable gap, and worm gear 14 relatively worm screw 13 moves up and down.Rotary worm 13 drives worm gear 14 when adjusting roll gap, and T-shaped screw rod 16 is connected with worm gear 14 by key 17, together rotation.

Worm Wheel System has the characteristic of reverse self-locking, and especially the single start worm self-locking performance is best.Adopt single start worm can well form the reverse drive self-locking, the worm gear number of teeth 35, T-shaped screw pitch 14mm, such as Fig. 4 and shown in Figure 6, the T-shaped screw rod of worm gear drives is rotated counterclockwise the screw rod rising when turning clockwise worm screw, oppositely selects loading screw to descend.Worm screw rotates a circle, and screw rod rises or the distance of decline may be calculated 1/35X14=0.4mm, the data of the relatively more original 1.5mm that whenever rotated a circle are adjusted precision will improve nearly 4 times, and when locking is adopted worm gear, worm screw self-locking to increase the convenience of adjusting to have avoided locking simultaneously to true adjustment, the destruction of data.Avoided former locking nut to impose on the pretightning force of threaded connection place.Former closely-pitched 1.5mm screw thread is replaced by pitch 14mmT screw thread, and it is above to increase by 500 at screw strength.New like this adjusting device is more accurate when adjusting roll gap, higher with quick, life-span and security, increase more than 4 times adjusting precision, will increase by 500 above service life.

Roll-separating mechanism needs dismounting when maintenance.As shown in Figure 7, Novel high-speed wire pinch roll roll gap adjustment device also has the rewind down function, when needing rewind down gland bolt is taken apart, removes worm shaft system, directly rotates T-shaped screw rod.In the centre position, pitch 14mm all withdraws from only needs rotation 9 circles during spiro rod length 240mm work.Former adjusting device will rotate for 80 weeks under same state.Increased like this convenience of using and keeping in repair.Novel roll-separating mechanism easy disassembly.

Claims

1. Novel high-speed wire pinch roll roll gap adjustment device, comprise gland, support, worm gear, worm screw, T-shaped bolt and key, it is characterized in that: support welding is on casing, support and gland are bolted to connection, worm screw is installed between support and the gland along axle system, and worm gear also is installed between support and the gland, and screw rod is threaded with worm gear, T-shaped bolt is connected with worm gear by key, and worm gear can move up and down with respect to screw rod; Described worm screw is single start worm.