CN202381662U

CN202381662U - Gear box

Info

Publication number: CN202381662U
Application number: CN2011205256961U
Authority: CN
Inventors: 刘红丹; 卢兵
Original assignee: Chongqing Jiangjin Shipbuilding Industry Co Ltd
Current assignee: Chongqing Jiangjin Shipbuilding Industry Co Ltd
Priority date: 2011-12-15
Filing date: 2011-12-15
Publication date: 2012-08-15
Anticipated expiration: 2021-12-15

Abstract

A gear box is characterized by comprising a box body and a rear cover. Bearings arranged at two ends of a gear shaft are respectively mounted on the box body and the rear cover; and the adjoining surface is positioned on the bearing near to the rear cover. The gear box is formed by connecting the box body and the rear cover; the bearings arranged at two ends of the gear shaft are respectively mounted on the box body and the rear cover; and the adjoining surface is positioned on the bearing near to the rear cover; the bearings are not required to be split; and the gear shaft can be mounted and dismounted by only opening the end cover, so that the integrity and processing precision of the bearing can be kept; the consistency and excellent interchangeability of the bearing can be kept; the matching degree between the gear shaft and the bearing is guaranteed; the processing difficulty of relevant parts is reduced; and the gear box is convenient to mount, dismount and maintain.

Description

A kind of gear-box

Technical field

The utility model relates to a kind of gear-box, relates in particular to a kind of transmission and uses gear-box.

Background technique

Traditional gear-box is the subdivision structure, adopts the mode along gear shaft parallel direction subdivision usually, and therefore, gear-box must be cut the whole earlier processing of gear shaft bearing open and assembled in manufacture process then with bearing.This structure has not only been lost the whole machining accuracy of bearing, and assembling the time need carry out with addition of the worker, and the bearing component do not have interchangeability; Bring certain difficulty for maintenance and manufacturing; Simultaneously, when maintenance must with gear-box up and down or about take apart, increased maintenance difficulty greatly.

The model utility content

The purpose of the utility model is to provide a kind of bearing integral machining accuracy and gear-box easy to loading and unloading of not destroying.

The purpose of the utility model is achieved in that a kind of gear-box, it is characterized in that: comprise casing and bonnet, can distinguish a step bearing of mounting teeth wheel shaft on said casing and the bonnet.

In order further to be convenient to loading and unloading and to guarantee that structure is fastening, be covered with end cap after above-mentioned, said end cap is provided with thrust block pad and thrust block pad bearing.

Thrust clearance for the ease of the adjustment gear shaft is provided with the adjustment pad between above-mentioned thrust block pad bearing and the end cap.

The utlity model has following beneficial effect:

1, the utility model bonnet and casing connect to form gear-box through bolt, can distinguish a step bearing of mounting teeth wheel shaft on casing and the bonnet, and in course of working, the location endoporus of gear shaft bearing need not be divided into two-part, can keep its integrity and machining accuracy; Simultaneously, the endoporus of gear shaft bearing and excircle dimension can be machined directly to fit dimension, need not carry out repair with the location endoporus on the casing, also need not cooperate with the axle journal of gear shaft and carry out repair, therefore can keep good conformity and interchangeability.

2, when assembling, high speed gear shaft, low speed gear axle are all packed in the gear-box vertically, guaranteed degree of adaptability with the gear shaft bearing.

3, adjust the thrust clearance of gear shaft in the using process through the thickness that increases or reduce to adjust pad, reduced the manufacture difficulty of gear shaft, thrust block pad, gear shaft bearing and thrust block pad bearing, also prolonged the working life of thrust block pad bearing.

When 4, overhauling, only need open end cap, take off thrust block pad, thrust block pad bearing and sealing gland, just can gear shaft bearing and gear shaft be taken off in the lump, greatly facilitate maintenance.

Description of drawings

Fig. 1 is the utility model example structure schematic representation.

Embodiment

Embodiment; A kind of gear-box; As shown in Figure 1; Comprise casing 1 and bonnet 2, an end tooth wheel bearing I 8 of high speed gear shaft 7 and an end tooth wheel bearing I 10 of low speed gear axle 9 are installed on the casing 1, the other end gear shaft bearing II 11 of high speed gear shaft 7 and the other end gear shaft bearing II 12 of low speed gear axle 9 are installed on the bonnet 2; Bonnet 2 is provided with end cap 3, and end cap 3 is provided with thrust block pad 4 and thrust block pad bearing 5, accompanies adjustment pad 6 between thrust block pad bearing 5 and the end cap 3; Bonnet 2 and casing 1 are connected through bolt, and the surface of contact of bonnet 2 and casing 1 is perpendicular to high speed gear shaft 7 and low speed gear axle 9.Casing 1 is provided with sealing gland I 13 and through being bolted on the casing 1, and bonnet 2 is provided with sealing gland II 14 and through being bolted on the bonnet 2.

Claims

1. a gear-box comprises casing (1) and bonnet (2), it is characterized in that: the end tooth wheel bearing that can distinguish the mounting teeth wheel shaft on said casing (1) and the bonnet (2).

2. gear-box as claimed in claim 1 is characterized in that: said bonnet (2) is provided with end cap (3), and said end cap (3) is provided with thrust block pad (4) and thrust block pad bearing (5).

3. gear-box as claimed in claim 2 is characterized in that: be provided with adjustment pad (6) between said thrust block pad bearing (5) and the end cap (3).