CN202285462U

CN202285462U - Vibration-resisting box body structure of point switch

Info

Publication number: CN202285462U
Application number: CN2011203711350U
Authority: CN
Inventors: 王渤; 刘峰; 方力恒; 马爱民
Original assignee: Tianjin Railway Signal Co Ltd
Current assignee: Tianjin Railway Signal Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-06-27
Anticipated expiration: 2021-09-30

Abstract

The utility model provides a vibration-resisting box body structure of a point switch, which comprises a bottom surface, two lateral walls, an upper wall, a lower wall and a bottom casing installing table. A reduction box installing table and a spindle supporting column are arranged at the middle position of the bottom surface. Horizontal reinforcing ribs are arranged on two sides of the spindle supporting column, the upper portion of a connection portion between the horizontal reinforcing ribs and the lateral walls of the box body is curve-shaped, contact area between the horizontal reinforcing ribs and the lateral walls is increased, and the spindle supporting column is further provided with a fabrication hole. The bottom of the reduction box installing table is a circular angle and provided with a fabrication hole. The bottom of the box body is provided with a polygon overlapping curve which is as high as the bottom casing installing table. A fabrication hole structure reduces stress concentration and casting defects of casting caused by overlarge size difference of box body wall thickness in a cooling process. The connection portion between the horizontal reinforcing ribs and the lateral walls of the box body is changed into a shape of a curve, the contact area is increased, and a problem of stress concentration generated at an original structural connection portion is solved. The polygon overlapping curve is added at the bottom of the box body, overlapping curves on two sides of the box body are as high as the installing portion, and anti-bending capacity of the bottom surface is improved.

Description

A kind of shock type goat body structure

Technical field

The utility model belongs to casting machinery manufacture field, especially relates to a kind of shock type goat body structure.

Background technology

The relationship between quality of railway signal product the safety of lives and properties, and the rigidity of engineering goods is vital factors that guarantee product quality in the railway ground signal system.In October, 1997, the Ministry of Railways was on the basis with reference to foreign standard, issued " railway ground signal product vibration test method " and came into effect.

Electric point machine is to be the equipment that power is realized track switch conversion, locking and supervisory role with interchange or DC motor, and is as shown in Figure 1, and it comprises drain pan 1 and is installed on parts such as its inner main shaft 4, reductor 2, small machine 3 and contact seat; Said drain pan 1 is a rectangular box structure, and its inside is provided with the reductor erecting bed and is used for installing reductor 2, and reductor 2 one sides are installed small machine 3, and opposite side is installed main shaft 4 and miscellaneous part; The installation place of main shaft 4 is provided with the main shaft support post, and it is thick that 18mm is all stretched out in its both sides, the horizontal stiffener that 38mm is high, and link to each other with two sidewalls of the thick drain pan casing of 6mm.

At present, when the electric point machine of widespread usage carried out vibration test, following problem appearred in regular meeting:

1, as shown in Figure 1; The decelerator 2 of heavily about 21.5kg is installed in the drain pan 1, the small machine 3 of heavily about 7.5kg is arranged on it, and heavily about 14.3kg automatic lid actuator 12; Under 21g acceleration double amplitude, vibrate; Receive the gravity blastic deformation, the housing upper opening R15 place of drain pan 1 at first ftractures, and ftractures near small machine 3 one sides along the decelerator erecting bed in the back;

2, as shown in Figure 2, the horizontal stiffener connecting portion 7 of the horizontal stiffener of main shaft support post 6 both sides and the sidewall 8 of drain pan body structure is for the right angle is connected, the problem that exists stress to concentrate;

3, as shown in Figure 1, the drain pan erecting bed 5 of electric point machine is four 70 * 80mm erecting beds that stretch out, and middle unsettled span is 415mm, causes rigidity poor, forms the key factor of fracture;

4, as shown in Figure 3, the bottom of decelerator erecting bed is that the right angle connects, and the junction causes stress to concentrate easy fracture because wall thickness difference is excessive.

Summary of the invention

The problem that the utility model will solve provides a kind of simple in structure, rigidity and reaches the shock type goat body structure that vibration test requires.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of shock type goat body structure, comprise bottom surface, two sidewalls, last lower wall and drain pan erecting beds, and the medium position of its bottom surface is provided with reductor erecting bed and main shaft support post; Said main shaft support post both sides are provided with horizontal stiffener, and the connecting portion top of itself and wall box is curve shape, increase the contact area with sidewall, also are provided with the support column fabrication hole on the main shaft support post in addition; Said decelerator erecting bed bottom also is provided with the erecting bed fabrication hole for the curving of castings connects; The bottom half of said goat body structure is provided with the polygon reticulate pattern, itself and height such as drain pan erecting bed grade.

Preferably, the bottom of said decelerator erecting bed also is provided with symmetrical reinforcement.

Advantage and the good effect that the utlity model has are:

1. the fabrication hole on main shaft support post and the decelerator erecting bed reduces foundry goods and in cooling procedure, concentrates and casting flaw because of the excessive stress that causes of casing wall thickness difference in size.

2. the connecting portion of main shaft support post both sides horizontal stiffener and wall box changes curve shape into, has increased contact area, has solved the original structure junction and has produced the problem that stress is concentrated.

3. bottom half increases the polygon reticulate pattern, height such as casing both sides reticulate pattern and installation position, and the middle part reticulate pattern adopts the blank shape, keeps the casting reset condition, and the bottom surface bending resistance is 1.71 times of original structure.

4. the root of decelerator erecting bed is set up symmetrical reinforcement, increases the rigidity that the curving of castings has improved erecting bed in addition.

Description of drawings

Fig. 1 is the overall structure sketch map of electric point machine;

Fig. 2 is a drain pan main shaft support post left side original structure profile;

Fig. 3 is a decelerator erecting bed position original structure profile;

Fig. 4 is the utility model drain pan main shaft support post left side section of structure;

Fig. 5 is the utility model decelerator erecting bed position section of structure.

Among the figure:

1, drain pan 2, reductor 3, small machine

4, main shaft 5, drain pan erecting bed 6, main shaft support post

7, horizontal stiffener connecting portion 8, sidewall 9, decelerator erecting bed

10, erecting bed fabrication hole 11, bottom half 12, automatic lid actuator

Embodiment

Like Fig. 4, shown in 5, a kind of shock type goat of the utility model body structure comprises bottom surface, two sidewalls 8, last lower wall and drain pan erecting beds, and the medium position of its bottom surface is provided with reductor erecting bed and main shaft support post 6;

As shown in Figure 4, said main shaft support post 6 both sides are provided with horizontal stiffener, and itself and two sidewalls 8 are for increasing contact area, and the top of horizontal stiffener connecting portion 7 is curve shape, also is provided with the support column fabrication hole in addition on the main shaft support post 6;

As shown in Figure 5, said decelerator erecting bed 9 places are provided with erecting bed fabrication hole 10, and its bottom also increases the curving of castings, and increases symmetrical reinforcement, reaches the purpose that increases decelerator erecting bed rigidity;

As shown in Figure 4, the bottom half 11 of said goat body structure is provided with the polygon reticulate pattern, itself and drain pan erecting bed 5 height such as grade.

The course of work of this instance: elements such as decelerator 2, small machine 3 and automatic lid actuator 12, be fixedly mounted in this shock type goat body structure, under 21g acceleration double amplitude, vibrate, this shock type goat body structure is excellent.

More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.

Claims

1. shock type goat body structure; Comprise bottom surface, two sidewalls, last lower wall and drain pan erecting beds; The medium position of its bottom surface is provided with reductor erecting bed and main shaft support post; It is characterized in that: said main shaft support post both sides are provided with horizontal stiffener, and the top of the connecting portion of itself and wall box is curve shape, also is provided with the support column fabrication hole on the main shaft support post in addition; Said decelerator erecting bed bottom also is provided with the erecting bed fabrication hole for fillet connects; The bottom half of said goat body structure is provided with the polygon reticulate pattern, itself and height such as drain pan erecting bed grade.

2. shock type goat body structure according to claim 1 is characterized in that: the bottom of said decelerator erecting bed also is provided with symmetrical reinforcement.