CN213393437U

CN213393437U - Novel structure of box closing surface of gear box body

Info

Publication number: CN213393437U
Application number: CN202022355710.XU
Authority: CN
Inventors: 万勇; 徐文娟; 刘波; 黄兴海; 王勇; 曹合荣
Original assignee: Sichuan Agricultural Machinery Research and Design Institute
Current assignee: Sichuan Agricultural Machinery Research and Design Institute
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-08
Anticipated expiration: 2030-10-21

Abstract

The utility model provides a novel structure of a box body box closing surface of a gear box, which comprises a box closing sealing main surface A and a box body casting feed inlet or a slag discharging hole B; a mould assembling attachment surface C for protecting the mould assembling sealing main surface A is arranged between the mould assembling sealing main surface A and the casting feed inlet or the slag tap B of the box body; the box assembling attachment surface C is an arc-shaped groove surface. 1. The box closing auxiliary surface C is positioned on the outer edge of the box closing sealing main surface A, and meanwhile, the box closing sealing main surface A is higher than the box closing auxiliary surface C0.5mm or so and has the width of about 1mm, so that scratch and damage of the structure A are prevented, the flatness of the sealing surface is improved, and quality problems such as oil leakage of the sealing surface are prevented. 2. And a casting feed inlet or a slag tap B of the box body is positioned at the outer edge of the box closing attachment surface C. Before machining, a box body casting feed inlet or a slag tap B needs to be removed by methods such as knocking, the quality problems such as material shortage and the like cannot be caused on the main sealing surface A of the box closing, the flatness of the sealing surface is improved, and the quality such as oil leakage of the sealing surface is prevented.

Description

Novel structure of box closing surface of gear box body

Technical Field

The utility model belongs to the technical field of the gear box face of closing processing, especially, relate to a novel structure of gear box face of closing.

Background

In the market, the box closing surface of the gearbox body is easy to be damaged by material shortage and scratching in the processes of casting or die-casting, machining, transportation and assembly, so that the box closing surface is lack of material or uneven (the planes are poor), and further serious quality problems of oil leakage of the gearbox body, breakage of the gearbox body and the like are caused.

As shown in fig. 3, the structure of the mould assembling surface on the market comprises a: mold closing sealing main surface and B: a feeding hole or a slag discharging hole is cast in the box body, A is in the inner direction, and B is in the outer direction. Fig. 4 is a sectional elevation view of a commercial mold close face structure, a in an up direction and B in a down direction. The phenomenon of oil leakage of the box assembling surface is caused by scratch, material shortage and poor plane of the box assembling surface in the processes of box processing, production, transportation and assembly, particularly in the process of mass production.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies of the prior art, the utility model discloses a novel structure of gear box face of closing to solve following problem: 1. the blank of the gear box body has the quality problems of material shortage, cracks and the like on the box closing surface, and the qualification rate of the blank is improved. 2. The flatness quality problem (preventing scratching and bruising) of the finished box closing surface of the gear box body is solved, and the problem of oil leakage of the gear box is solved.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel structure of a box body box closing surface of a gear box comprises a box closing sealing main surface A and a box body casting feed inlet or slag discharging opening B; a mould assembling attachment surface C for protecting the mould assembling sealing main surface A is arranged between the mould assembling sealing main surface A and the casting feed inlet or the slag tap B of the box body; the box assembling attachment surface C is an arc-shaped groove surface.

As a further description of the above technical solution: one end of the mould assembling attachment surface C is connected with the mould assembling sealing main surface A, and the casting feed inlet or the slag tap B of the box body is arranged at the other end of the mould assembling attachment surface C.

As a further description of the above technical solution: the depth of the box assembling attaching surface C is 0.2-1.0mm, and the width of the box assembling attaching surface C is 0.5-2.0 mm.

As a further description of the above technical solution: the depth of the box assembling attaching surface C is 0.5mm, and the width of the box assembling attaching surface C is 1.0 mm.

The utility model discloses following beneficial effect has:

1. the box closing auxiliary surface C is positioned on the outer edge of the box closing sealing main surface A, and meanwhile, the box closing sealing main surface A is higher than the box closing auxiliary surface C0.5mm or so and has the width of about 1mm, so that scratch and damage of the structure A are prevented, the flatness of the sealing surface is improved, and quality problems such as oil leakage of the sealing surface are prevented.

2. And a casting feed inlet or a slag tap B of the box body is positioned at the outer edge of the box closing attachment surface C. Before machining, a box body casting feed inlet or a slag tap B needs to be removed by methods such as knocking, the quality problems such as material shortage and the like cannot be caused on the main sealing surface A of the box closing, the flatness of the sealing surface is improved, and the quality such as oil leakage of the sealing surface is prevented.

Drawings

Fig. 1 is a top partial view of a structure of a box closing surface of a novel gearbox body provided by the present invention;

FIG. 2 is a sectional elevation view of the structure of a box closing surface of a novel gearbox body provided by the present invention;

FIG. 3 is a top partial view of a prior art configuration of a gearbox housing closeout face;

FIG. 4 is a cross-sectional elevation view of the structure of a prior art gearbox housing box closing face.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, a novel structure of a box closing surface of a gearbox box body comprises a box closing sealing main surface A and a box body casting feed inlet or slag tap B; a mould assembling attachment surface C for protecting the mould assembling sealing main surface A is arranged between the mould assembling sealing main surface A and the casting feed inlet or the slag tap B of the box body; the box assembling attachment surface C is an arc-shaped groove surface.

In this embodiment, one end of the mould assembling attachment surface C is connected with the mould assembling sealing main surface a, and the box body casting feed inlet or slag tap B is arranged at the other end of the mould assembling attachment surface C.

In the embodiment, the depth of the mould assembling boundary surface C is 0.2-1.0mm, and the width thereof is 0.5-2.0 mm; preferably, the depth of the mould assembling attachment surface C is 0.5mm, and the width thereof is 1.0 mm.

The utility model can greatly reduce the scratch of the sealing main surface A of the mould assembling, improve the flatness quality and greatly reduce the oil leakage probability of the gear box; meanwhile, the material shortage condition of the sealing main surface A of the box assembling is greatly reduced, and the oil leakage probability of the gear box is greatly reduced.

The specific embodiment is as follows:

in FIG. 1, the top view position relationship of three structures of a box closing sealing main surface A, a box body casting feed inlet or slag tap B and a box closing attaching surface C; the main sealing surface A of the mould assembling box is close to the inner side of the box body, and after assembly, structures such as paper pads or sealant can be arranged on the main sealing surface of the mould assembling box, but the sealing surface is required to be flat, and the flatness is required to be within 0.05 mm. The mould assembling attaching surface C (a protection mould assembling sealing main surface) is positioned outside the structure of the mould assembling sealing main surface A and plays a role of protecting the mould assembling sealing main surface A; the depth difference of the box closing boundary surface C is about 0.5, the width is 1mm, the scratch and the damage of the A are prevented, the oil leakage of the box body is further prevented, and the product quality is improved (see figure 2). A casting feed port or a slag discharge port B (a structure for storing slag or water vapor in the casting process) of the box body is positioned on the outer side of the whole structure; the structure is a necessary structure of a die-casting or casting box part structure; the structure is a feed inlet or a slag tap (a structure for storing slag or water vapor in the casting process), and belongs to the most slag taps; the function is to store dregs or water vapor, so as to ensure the compactness of the box closing surface material and prevent loosening or shrinkage cavity.

In fig. 2, the cross-sectional elevation position relationship of three structures, namely a mould assembling sealing main surface A, a casting feed inlet or slag tap B of a box body and a mould assembling attaching surface C; the main sealing surface A of the mould assembling box is close to the upper surface of the box body; the mold assembling attaching surface C (protective mold assembling sealing main surface) is designed at a position 0.5mm below the mold assembling sealing main surface A, and has a width of 1 mm. The sealing main surface A of the box closing is prevented from being scratched and damaged, so that oil leakage of the box body is prevented, and the product quality is improved. A box body casting feed inlet or a slag outlet B (a structure for storing slag or water vapor in the casting process) is designed below a box closing attachment surface C. When the box body is machined, a casting feed inlet or a slag tap B of the box body can be removed in modes of knocking and the like, so that the auxiliary surface C of the box body can only be damaged and lack of materials, the sealing main surface A of the box body is further protected, the quality of the whole box body is protected, and the oil leakage phenomenon of a machine is prevented.

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. A novel structure of a box body box closing surface of a gear box is characterized by comprising a box closing sealing main surface A and a box body casting feed inlet or slag discharging hole B; a mould assembling attachment surface C for protecting the mould assembling sealing main surface A is arranged between the mould assembling sealing main surface A and the casting feed inlet or the slag tap B of the box body; the box assembling attachment surface C is an arc-shaped groove surface.

2. The novel structure of the box closing surface of the gearbox box body as claimed in claim 1, wherein one end of the box closing attachment surface C is connected with the main closing sealing surface A, and the box body casting feed inlet or slag tap B is arranged at the other end of the box closing attachment surface C.

3. The novel structure of the box closing surface of the gearbox box body as claimed in claim 2, wherein the depth of the box closing attachment surface C is 0.2-1.0mm, and the width of the box closing attachment surface C is 0.5-2.0 mm.

4. The novel structure of the box closing surface of the gearbox box body as claimed in claim 3, wherein the depth of the box closing attachment surface C is 0.5mm, and the width of the box closing attachment surface C is 1.0 mm.