CN201711348U

CN201711348U - Cast-welded combined box body of main transmission reducer of pipe rolling machine

Info

Publication number: CN201711348U
Application number: CN2010202556762U
Authority: CN
Inventors: 史敏
Original assignee: Taiyuan Heavy Industry Co Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2010-07-09
Filing date: 2010-07-09
Publication date: 2011-01-19
Anticipated expiration: 2020-07-09

Abstract

The utility model provides a cast-welded combined box body of a main transmission reducer of a pipe rolling machine, which belongs to the field of large-size pipe rolling equipment. The utility model solves the problems of the case box body, such as complex fabrication process, long fabrication period and high production cost and solves the problem of the welded box body, such as poor vibration resistance and poor rigidity. The utility model consists of a lower box body and an upper box body, and is characterized in that the lower box body consists of a welded box bottom and a cast lower box, and the upper box body consists of a case bearing cap and a welded box cover. The utility model is applicable to the transmission of mechanical equipment in such industries as lifting, transportation, metallurgy, mining, chemicals and light industry, particularly to the large-size pipe rolling equipment.

Description

A kind of cast welding combination box of pipe mill main transmission decelerator

Technical field

The utility model relates to large-scale pipe mill equipment, the decelerator in the particularly large-scale pipe mill main transmission.

Background technology

At present, the casing form of existing large-scale pipe mill main transmission decelerator has cast type, welded type.Large-scale pipe mill main transmission decelerator generally comprises upper and lower two casings, and last lower box connects by bolt, and input and output shaft, gear shaft, gear, bearing etc. on it are formed complete decelerator.The good rigidity of casting box casing, good anti-vibration, manufacturing process complexity, cycle are long, to the piece-production cost height.Welding casing manufacturing process is simple relatively, with short production cycle, and low to piece-production cost, vibration resistance, rigidity are than casting box difference.

Summary of the invention

The purpose of this utility model is at the shortcoming and defect that exists in the prior art, and a kind of cast welding combination box of pipe mill main transmission decelerator is provided, and casting box manufacturing process complexity is adopted in solution, the cycle is long, production cost is high; Adopt the problem of welding casing vibration resistance, poor rigidity.

The utility model is achieved through the following technical solutions:

A kind of cast welding combination box of pipe mill main transmission decelerator, form by lower part box and upper box body two parts, it is characterized in that: described lower part box combines with the casting nowel at the bottom of welding case, and described upper box body is combined by cast bearing lid and welding case lid.

The utility model compared with prior art since lower part box by case at the bottom of and nowel forms, at the bottom of the case employing Welding Structure, the casing wall thickness reduces, and is in light weight, reduced manufacturing cost; Nowel adopts cast structure, has guaranteed the vibration resistance and the rigidity of decelerator, simultaneously, divides body structure owing to adopt, and makes the height dimension of casting nowel reduce, thereby has reduced the mounting center height of decelerator, has improved the job stability of decelerator.Because upper box body is made up of bearing cap and case lid, bearing cap adopts cast structure, and case lid adopts Welding Structure, has alleviated the weight of upper box body, thereby reduced cost, simultaneously, owing to adopt the branch body structure of bearing cap and case lid, make the case lid design can reduce rigidity and weight, like this, both satisfy the decelerator matching requirements, improved the sealing on composition surface, reduced manufacturing cost again.Thereby cast welding combination box of the present utility model had both guaranteed vibration resistance, the rigidity of reduction case, had reduced the manufacturing cost of equipment again.The utility model can be used for being particularly suitable for the use of equipment such as large-scale pipe mill in the transmission of various plant equipment such as lifting, transportation, metallurgy, mine, chemical industry, light industry.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model lower part box;

Fig. 3 is the structural representation of the utility model upper box body.

The utility model is further described by embodiment below in conjunction with accompanying drawing.

The specific embodiment

As shown in Figure 1, 2, 3, a kind of cast welding combination box of pipe mill main transmission decelerator is made up of lower part box 1 and upper box body 2 two parts; Described lower part box 1 by the welding case at the bottom of 1-1 and casting nowel 1-2 be combined into and form, described upper box body 2 is combined by cast bearing lid 2-1 and welding case lid 2-2.

1-1 is connected with nowel bolt 1-3 with casting nowel 1-2 at the bottom of the described welding case, forms complete lower part box 1.

Described upper box body 2 is connected with top box bolt 2-3 with welding case lid 2-2 by cast bearing lid 2-1, forms complete upper box body 2.

Claims

1. the cast welding combination box of a pipe mill main transmission decelerator, form by lower part box (1) and upper box body (2) two parts, it is characterized in that: described lower part box (1) by the welding case at the bottom of (1-1) and casting nowel (1-2) combine, described upper box body (2) is by cast bearing lid (2-1) and weld case lid (2-2) and combine.