CN218982683U

CN218982683U - 340 roller boxes of high-speed bar pre-finishing mill transmission unit

Info

Publication number: CN218982683U
Application number: CN202222301025.8U
Authority: CN
Inventors: 何磊
Original assignee: Xi'an Weikeduo Electrical & Mechanical Equipment Co ltd
Current assignee: Xi'an Weikeduo Electrical & Mechanical Equipment Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-05-09
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a roller box of a high-speed bar pre-finishing mill transmission unit 340, which consists of a taper sleeve, a roller box panel, a roller box body, a roller gap adjusting mechanism, a roller shaft, a cold water pipe and an eccentric sleeve mechanism, wherein the roller gap adjusting mechanism, the roller shaft, the cold water pipe and the eccentric sleeve mechanism are arranged in the roller box body, and the roller box comprises the following components: the rolling roll shafts are composed of left rolling roll shafts and right rolling roll shafts and are used for rolling materials, roll collars are arranged at cantilever ends of the left rolling roll shafts and the right rolling roll shafts, taper sleeves are wedged into gaps among the roll collars, the left rolling roll shafts and the right rolling roll shafts, and protective caps are further arranged at shaft head positions of the left rolling roll shafts and the right rolling roll shafts; through the design of the utility model, the transmission case transmits torque to the roller case body through the gear of the roller shaft mechanism when rolling steel, and the roller case body adjusts the opening degree of the roller shaft mechanism through the worm and the gear, so that the rolling of steel sizes with different specifications is ensured, and meanwhile, the problems of rough specification, high rejection rate and unstable size of rolled products in the prior art can be perfected.

Description

340 roller boxes of high-speed bar pre-finishing mill transmission unit

Technical Field

The utility model belongs to the technical field of pre-finishing rolling mills, and particularly relates to a high-speed bar pre-finishing rolling mill transmission unit 340 roller box.

Background

The specification of the pre-finish rolling cantilever rolling mill roll box is mainly concentrated on a small-specification roll box, 285 roll box technology is adopted in the field of pre-finish rolling roll boxes, the roll box can only roll bars with phi 16-phi 20, and for rolling large phi 25-phi 32, short-stress rough and medium rolling equipment is mainly adopted, so that the main problems are that the rolled finished product is rough in specification, high in rejection rate and unstable in size.

Disclosure of Invention

The utility model aims to provide a roller box of a high-speed bar pre-finishing mill transmission unit 340, which aims to solve the problems that larger bars cannot be processed, the rejection rate is high in processing and the rolling size is unstable in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-speed rod pre-finishing mill drive unit 340 roller box, this roller box comprises taper sleeve, roller box panel, roller box to and set up at inside roll gap adjustment mechanism, roller axle, cold water pipe and the eccentric cover mechanism of roller box, wherein:

the rolling roll shafts are composed of left rolling roll shafts and right rolling roll shafts and are used for rolling materials, roll collars are arranged at cantilever ends of the left rolling roll shafts and the right rolling roll shafts, taper sleeves are wedged into gaps among the roll collars, the left rolling roll shafts, the roll collars and the right rolling roll shafts, protective caps are further arranged at shaft head positions of the left rolling roll shafts and the right rolling roll shafts and are used for protecting shaft heads, and working side oil film bearings are sleeved at the upper end and the lower end of the left rolling roll shafts and the lower end of the right rolling roll shafts to realize rotation;

the eccentric sleeve mechanism consists of a right eccentric sleeve and a left eccentric sleeve, the upper end and the lower end of the right eccentric sleeve and the left eccentric sleeve are respectively sleeved with a non-working side oil film bearing, and the input end of the eccentric sleeve mechanism is connected with the output end of the roller shaft;

the roll gap adjusting mechanism comprises a worm, and the worm is in transmission connection with the right eccentric sleeve and the left eccentric sleeve.

Preferably, the outer rings of the right eccentric sleeve and the left eccentric sleeve are of worm-wheel-shaped structures, so that later-stage transmission adjustment is facilitated, and the right eccentric sleeve and the left eccentric sleeve are connected with a worm in a roller box body in a transmission manner.

Preferably, the directions of the worm-shaped structures on the outer ring of the right eccentric sleeve and the left eccentric sleeve are opposite, and the directions of rotation of the right eccentric sleeve and the left eccentric sleeve are opposite, so that the two worms are unfolded or close to the two sides, wherein the two worms are arranged, and the rotation directions of the two worms are the same.

Preferably, the roller box panel is arranged at the end part of the roller box body and is penetrated by the roller shaft; the roller box panel is connected with an external transmission box through bolts.

Preferably, two cold water pipes are arranged for cooling in operation, and the two cold water pipes are respectively positioned at the outer sides of the left roller shaft and the right roller shaft.

Preferably, a plurality of water outlet pipes are formed at the positions of the cold water pipes towards the inner sides of the left roller shaft and the right roller shaft, so that cooling is realized, and the water outlet pipes are distributed at equal angles.

Compared with the prior art, the utility model has the beneficial effects that:

through the design of the utility model, the transmission case transmits torque to the roller case body through the gear of the roller shaft mechanism when rolling steel, and the roller case body adjusts the opening degree of the roller shaft mechanism through the worm gear, so that the rolling of steel sizes with different specifications is ensured, and meanwhile, the problems of rough specification, high rejection rate and unstable size of rolled products in the prior art can be perfected.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an internal top cross-sectional view of the present utility model;

fig. 3 is a side view of the present utility model.

In the figure: 1. a roll collar; 2. a left roll shaft; 3. a right roll shaft; 4. a taper sleeve; 5. a roller box panel; 6. a working side oil film bearing; 7. a worm; 8. a roller housing; 9. a non-working side oil film bearing; 10. a right eccentric sleeve; 11. A left eccentric sleeve; 12. a cold water pipe; 13. and a protective cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a high-speed rod pre-finishing mill drive unit 340 roller box, this roller box comprises taper sleeve 4, roller box panel 5, roller box 8 to and set up at the inside roll gap adjustment mechanism of roller box 8, roll axle, cold water pipe 12 and eccentric cover mechanism, wherein: the rolling shaft is composed of a left rolling shaft 2 and a right rolling shaft 3, a roll collar 1 is arranged at the cantilever ends of the left rolling shaft 2 and the right rolling shaft 3, a taper sleeve 4 is wedged into gaps between the roll collar 1 and the left rolling shaft 2 and between the roll collar 1 and the right rolling shaft 3, torque is transmitted to a roll box body 8 through gears of a rolling shaft mechanism when rolling steel, the roll box body 8 adjusts the opening degree of the rolling shaft mechanism through a worm gear 7, thereby ensuring the rolling of steel with different specifications, simultaneously improving the problems of rough specification, high rejection rate and unstable rolling finished product size of rolling products in the prior art, and a protective cap 13 is also arranged at the shaft head positions of the left rolling shaft 2 and the right rolling shaft 3, and working side oil film bearings 6 are sleeved at the upper end and the lower end of the left rolling shaft 2 and the right rolling shaft 3; the eccentric sleeve mechanism consists of a right eccentric sleeve 10 and a left eccentric sleeve 11, the upper end and the lower end of the right eccentric sleeve 10 and the left eccentric sleeve 11 are respectively sleeved with a non-working side oil film bearing 9, and the input end of the eccentric sleeve mechanism is connected with the output end of the roller shaft; the roll gap adjusting mechanism comprises a worm 7, the worm 7 is in transmission connection with a right eccentric sleeve 10 and a left eccentric sleeve 11, the outer rings of the right eccentric sleeve 10 and the left eccentric sleeve 11 are of worm-wheel-shaped structures, the right eccentric sleeve 10 and the left eccentric sleeve 11 are in transmission connection with the worm 7 in a roll box 8, gaps are convenient to adjust in the later period, the directions of the worm-wheel-shaped structures on the outer rings of the right eccentric sleeve 10 and the left eccentric sleeve 11 are opposite, the two rotating directions of the two worms 7 are opposite, the two worms 7 are identical in rotating direction, and a roll box panel 5 is installed at the end part of the roll box 8 and penetrated by a roll shaft; the roller box panel 5 is connected with an external transmission box through bolts.

In this embodiment, preferably, two cold water pipes 12 are provided for performing cooling operation during processing, and the two cold water pipes 12 are respectively located outside the left roll shaft 2 and the right roll shaft 3, and a plurality of water outlet pipes are formed at positions of the cold water pipes 12 towards the inner sides of the left roll shaft 2 and the right roll shaft 3, and the water outlet pipes are distributed at equal angles.

The working principle and the using flow of the utility model are as follows: when the rolling mill is used, a roller box panel 5 on a roller box body 8 is used for being connected with a transmission box, an eccentric sleeve mechanism is arranged in the roller box body 8 for adjusting a roller gap, a worm 7 drives a right eccentric sleeve 10 and a left eccentric sleeve 11 to rotate, the positions of the axes of a left roller shaft 2 and a right roller shaft 3 are changed through the eccentric amount position change on the right eccentric sleeve 10 and the left eccentric sleeve 11, so that the purpose of adjusting the center distance of the roller shafts is achieved, and the rolling force of the left roller shaft 2 and the right roller shaft 3 is borne by an oil film bearing 6 on the working side and then is transmitted to the roller box panel 5 through the right eccentric sleeve 10 and the left eccentric sleeve 11 until being transmitted to the whole rolling mill; the eccentricity of the right eccentric sleeve 10 and the left eccentric sleeve 11 is 22mm, namely the distance between the center line of the roller shaft mechanism and the center line of the outer circle of the eccentric sleeve mechanism is 22mm, the worm gear structure of the outer ring of the right eccentric sleeve 10 and the left eccentric sleeve 11 adopts a tooth form with the modulus of m=5 to bear load, and the eccentric sleeve mechanism is driven to rotate through the rotation of the worm 7, so that the center distance between the left roller shaft 2 and the right roller shaft 3 is adjusted: the maximum interval is: 348-353mm, the minimum interval being 313-318mm, the roll box panel thickness being 140mm.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed rod pre-finishing mill drive unit 340 roller box which characterized in that: the roller box consists of a taper sleeve (4), a roller box panel (5), a roller box body (8), and a roller gap adjusting mechanism, a roller shaft, a cold water pipe (12) and an eccentric sleeve mechanism which are arranged inside the roller box body (8), wherein:

the roll shaft consists of a left roll shaft (2) and a right roll shaft (3), a roll collar (1) is arranged at the cantilever ends of the left roll shaft (2) and the right roll shaft (3), the taper sleeve (4) is wedged into a gap between the roll collar (1) and the left roll shaft (2) and between the roll collar (1) and the right roll shaft (3), a protective cap (13) is further arranged at the shaft head positions of the left roll shaft (2) and the right roll shaft (3), and working side oil film bearings (6) are sleeved at the upper end and the lower end of the left roll shaft (2) and the upper end and the lower end of the right roll shaft (3);

the eccentric sleeve mechanism consists of a right eccentric sleeve (10) and a left eccentric sleeve (11), the upper end and the lower end of the right eccentric sleeve (10) and the left eccentric sleeve (11) are respectively sleeved with a non-working side oil film bearing (9), and the input end of the eccentric sleeve mechanism is connected with the output end of the roller shaft;

the roll gap adjusting mechanism comprises a worm (7), and the worm (7) is in transmission connection with a right eccentric sleeve (10) and a left eccentric sleeve (11).

2. A high speed bar pre-finishing mill drive train 340 roll cassette as set forth in claim 1 wherein: the outer rings of the right eccentric sleeve (10) and the left eccentric sleeve (11) are of worm-wheel-shaped structures, and the right eccentric sleeve (10) and the left eccentric sleeve (11) are in transmission connection with the worm (7) in the roller box body (8).

3. A high speed bar pre-finishing mill drive train 340 roll cassette as defined in claim 2, wherein: the direction of the worm-shaped structure on the outer ring of the right eccentric sleeve (10) and the direction of the worm-shaped structure on the outer ring of the left eccentric sleeve (11) are opposite, and the rotation directions of the two worm-shaped structures are opposite, wherein the two worm rods (7) are arranged, and the rotation directions of the two worm rods (7) are the same.

4. A high speed bar pre-finishing mill drive train 340 roll cassette as set forth in claim 1 wherein: the roller box panel (5) is arranged at the end part of the roller box body (8) and is penetrated by a roller shaft; the roller box panel (5) is connected with an external transmission box through bolts.

5. A high speed bar pre-finishing mill drive train 340 roll cassette as set forth in claim 1 wherein: the two cold water pipes (12) are arranged, and the two cold water pipes (12) are respectively arranged at the outer sides of the left roller shaft (2) and the right roller shaft (3).

6. The high speed bar pre-finishing mill drive train 340 roll cassette of claim 5, wherein: the cold water pipe (12) is provided with a plurality of water outlet pipes towards the inner side direction positions of the left roller shaft (2) and the right roller shaft (3), and the water outlet pipes are distributed at equal angles.