CN214767814U

CN214767814U - Novel rolling mill screwdown screw structure

Info

Publication number: CN214767814U
Application number: CN202120469300.XU
Authority: CN
Inventors: 夏志彬
Original assignee: Baotou Iron and Steel Group Co Ltd
Current assignee: Baotou Iron and Steel Group Co Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-11-19
Anticipated expiration: 2031-03-04

Abstract

The utility model discloses a novel lead screw structure is pushed down to rolling mill, including the memorial archway, the upper end fixedly connected with of memorial archway pushes down the motor, the output of pushing down the motor is provided with the second speed reducer, the one end extension of second speed reducer is provided with the output shaft, the left side of output shaft is provided with the dabber, the dabber is close to the one end of output shaft and has seted up the bolt hole, the left end fixedly connected with transmission shaft of dabber, the output of transmission shaft is provided with first speed reducer, the inside of first speed reducer is provided with pushes down the lead screw, the middle-end lateral wall that pushes down the lead screw is provided with pushes down the screw, the bottom that pushes down the screw is provided with the navigation key. The utility model discloses in, will push down lead screw and thrust pad two and close as an organic wholely, form the sub-assembly, cancelled 4 bolted connection, prevent its fracture, secondly, increase the stability of dabber connection, improve the atress mode that pushes down the lead screw when the rolling mill receives the impact, solved the cracked problem of bolt.

Description

Novel rolling mill screwdown screw structure

Technical Field

The utility model relates to a rolling mill field especially relates to a novel lead screw structure is pushed down to rolling mill.

Background

The rolling mill is equipment for realizing a metal rolling process, and generally refers to equipment for completing the whole process of rolled material production. The rolling mill can be divided into two rolls, four rolls, six rolls, eight rolls, twelve rolls, eighteen rolls and the like according to the number of the rolls, and can be divided into an L shape, a T shape, an F shape, a Z shape and an S shape according to the arrangement mode of the rolls. The common rolling mill mainly comprises a roller, a frame, a roller spacing adjusting device, a roller temperature adjusting device, a transmission device, a lubricating system, a control system, a roller dismounting device and the like. Besides the main parts and devices of the common rolling mill, the precision rolling mill is additionally provided with a device for ensuring the rolling precision.

The impact load is very large in the rolling process of large rolling mills such as iron and steel enterprises, the influence of abnormal rolling force on the service life of equipment on a rolling mill housing is very large, and due to the working requirement, the equipment on the rolling mill is large in size, heavy in weight and large in stress under the general condition, and in addition, the corrosion of severe environments such as steam and the like frequently occurs, the conditions that 4 fixing bolts at the connecting part of a screw-down lead screw and a thrust pad in a screw-down device are broken, a fixing bolt of a spindle of a transmission shaft is broken and separated, and a screw nut of a screw-down nut positioning key bolt is broken and falls off. However, due to the production yield conditions, frequent failures often result in significant time and labor required to stop production and replace.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a novel rolling mill screw-down structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel rolling mill screw-down screw structure comprises a housing, wherein the upper end of the housing is fixedly connected with a screw-down motor, the output end of the screw-down motor is provided with a second speed reducer, one end of the second speed reducer is provided with an output shaft in an extending manner, the left side of the output shaft is provided with a mandrel, one end of the mandrel, which is close to the output shaft, is provided with a bolt hole, the left end of the mandrel is fixedly connected with a transmission shaft, and the output end of the transmission shaft is provided with a first speed reducer;

the inside of first speed reducer is provided with pushes down the lead screw, the middle-end lateral wall that pushes down the lead screw is provided with pushes down the screw, the bottom that pushes down the screw is provided with the navigation key, the bottom fixedly connected with thrust pad that pushes down the lead screw, the bottom of thrust pad is provided with anti-sticking jar.

As a further description of the above technical solution:

the bolt hole is connected with a fixing bolt through threads, and the mandrel is fixedly connected with the output shaft through the fixing bolt.

As a further description of the above technical solution:

the pressing screw nut is fixedly connected with the memorial archway through a positioning key.

As a further description of the above technical solution:

the anti-sticking cylinder is connected with the screw bolt of the screw-down screw rod.

As a further description of the above technical solution:

the pressing screw rod and the thrust pad are fixedly connected to form an assembly.

As a further description of the above technical solution:

the first speed reducer and the second speed reducer are both installed on the memorial archway.

As a further description of the above technical solution:

and a boss is arranged at the left end of the positioning key.

As a further description of the above technical solution:

the mandrel is mounted on the transmission shaft.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the novel rolling mill screw pressing structure integrates the screw pressing part and the thrust pad part to form a combined part, 4 bolt connections are omitted, and the novel rolling mill screw pressing structure can effectively prevent the novel rolling mill screw pressing part from being broken.

2. Compared with the prior art, this novel rolling mill screwdown lead screw structure through passing through fixing bolt fixed connection with dabber and output shaft, increases the stability that the dabber is connected.

3. Compared with the prior art, this novel rolling mill screwdown lead screw structure sets up the boss through the left end at the navigation key, can effectual improvement screwdown the connection stability of screw.

4. Compared with the prior art, the novel rolling mill screw-down structure improves the stress mode of the screw-down structure when the rolling mill is impacted, and solves the problem of bolt fracture.

Drawings

Fig. 1 is an overall cross-sectional view of a novel rolling mill screw-down structure provided by the utility model;

fig. 2 is a schematic structural diagram of a combined member of a novel rolling mill screw-down structure provided by the present invention;

fig. 3 is a schematic structural view of a positioning key of a screw-down structure of a novel rolling mill provided by the present invention;

fig. 4 is a schematic connection diagram of the output shaft and the mandrel of the novel rolling mill screw-down structure provided by the present invention.

Illustration of the drawings:

1. pressing down the motor; 2. a drive shaft; 3. a first speed reducer; 4. pressing down a screw rod; 5. pressing down a nut; 6. a positioning key; 7. a thrust pad; 8. an output shaft; 9. a mandrel; 10. an assembly; 11. bolt holes; 12. a sticking prevention cylinder; 13. a memorial archway; 14. and a second speed reducer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a novel rolling mill screw-down lead screw structure comprises a housing window 13, wherein the upper end of the housing window 13 is fixedly connected with a screw-down motor 1, the output end of the screw-down motor 1 is provided with a second speed reducer 14, one end of the second speed reducer 14 is provided with an output shaft 8 in an extending manner, the left side of the output shaft 8 is provided with a mandrel 9, one end of the mandrel 9, which is close to the output shaft 8, is provided with a bolt hole 11, the bolt hole 11 is connected with a fixing bolt through a thread, the mandrel 9 and the output shaft 8 are fixedly connected through the fixing bolt, the connection stability of the mandrel 9 is improved, the left end of the mandrel 9 is fixedly connected with a transmission shaft 2, the mandrel 9 is arranged on the transmission shaft 2, the output end of the transmission shaft 2 is provided with a first speed reducer 3, and the first speed reducer 3 and the second speed reducer 14 are both arranged on the housing window 13;

the inside of first speed reducer 3 is provided with and pushes down lead screw 4, the middle-end lateral wall that pushes down lead screw 4 is provided with and pushes down screw 5, the bottom that pushes down screw 5 is provided with navigation key 6, the left end of navigation key 6 is provided with the boss, can effectual improvement push down the connection stability of screw 5, it passes through navigation key 6 and memorial archway 13 fixed connection to push down screw 5, the bottom fixedly connected with thrust pad 7 that pushes down lead screw 4, push down lead screw 4 and thrust pad 7 fixed connection, form sub-assembly 10, 4 bolted connections have been cancelled, can effectually prevent its fracture, the bottom of thrust pad 7 is provided with anti-sticking jar 12, anti-sticking jar 12 with push down lead screw 4 bolted connection.

The working principle is as follows: this novel lead screw structure is pressed down to rolling mill, during the use, through will pressing down lead screw 4 and thrust pad 7 two and close as an organic wholely, form sub-assembly 10, 4 bolted connection have been cancelled, can effectually prevent its fracture, secondly, through passing through fixing bolt fixed connection with dabber 9 and output shaft 8, increase the stability that dabber 9 is connected, through improving the atress mode that presses down lead screw 4 when the rolling mill receives the impact, fixing bolt between output shaft 8 and the dabber 9 does not take place, the cracked phenomenon of connecting bolt of screw 5 and navigation key 6 presses down.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a lead screw structure is pressed to novel rolling mill, includes memorial archway (13), its characterized in that: the upper end of the housing (13) is fixedly connected with a pressing motor (1), the output end of the pressing motor (1) is provided with a second speed reducer (14), one end of the second speed reducer (14) extends to be provided with an output shaft (8), the left side of the output shaft (8) is provided with a mandrel (9), one end, close to the output shaft (8), of the mandrel (9) is provided with a bolt hole (11), the left end of the mandrel (9) is fixedly connected with a transmission shaft (2), and the output end of the transmission shaft (2) is provided with a first speed reducer (3);

the inside of first speed reducer (3) is provided with screw (4) of pushing down, the middle-end lateral wall of pushing down screw (4) is provided with screw (5) of pushing down, the bottom of pushing down screw (5) is provided with navigation key (6), the bottom fixedly connected with thrust pad (7) of pushing down screw (4), the bottom of thrust pad (7) is provided with anti-sticking jar (12).

2. The novel rolling mill screw-down structure of claim 1, wherein: the bolt hole (11) is connected with a fixing bolt through threads, and the mandrel (9) and the output shaft (8) are fixedly connected through the fixing bolt.

3. The novel rolling mill screw-down structure of claim 1, wherein: the pressing screw nut (5) is fixedly connected with the memorial archway (13) through a positioning key (6).

4. The novel rolling mill screw-down structure of claim 1, wherein: the anti-sticking cylinder (12) is connected with the screw-down screw (4) through a bolt.

5. The novel rolling mill screw-down structure of claim 1, wherein: the screw-down screw (4) and the thrust pad (7) are fixedly connected to form an assembly (10).

6. The novel rolling mill screw-down structure of claim 1, wherein: the first speed reducer (3) and the second speed reducer (14) are both installed on the memorial archway (13).

7. The novel rolling mill screw-down structure of claim 1, wherein: and a boss is arranged at the left end of the positioning key (6).

8. The novel rolling mill screw-down structure of claim 1, wherein: the mandrel (9) is arranged on the transmission shaft (2).