Train carriage bolster integral core box group, bolster sand core and its processing method

A processing method and integral core technology, applied in the direction of metal processing equipment, cores, manufacturing tools, etc., can solve the problems of shortening processing time, disadvantages, and inability to make two sand cores in parallel, and achieve dimensional accuracy, which is easy to control and shortens processing time. the effect of time

Inactive Publication Date: 2010-06-23
CRRC QIQIHAR ROLLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two sand cores cannot be produced in parallel, so that the formation process of the two half-cores is restricted in time, which is not conducive to shortening the processing time

Method used

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  • Train carriage bolster integral core box group, bolster sand core and its processing method
  • Train carriage bolster integral core box group, bolster sand core and its processing method
  • Train carriage bolster integral core box group, bolster sand core and its processing method

Examples

Experimental program
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Effect test

Embodiment Construction

[0048] Please see figure 1 , which shows the principle flow of the bolster manufacturing method provided by the present invention. Please combine figure 2 , this figure is a schematic diagram of the overall core provided by the present invention; please also refer to image 3 , the figure is figure 2 A-A to the sectional view. The basic principles of the present invention are described below in conjunction with the above-mentioned illustrations.

[0049] Step S101, using the upper (left) half core box 101 and the lower (right) half core box 102 to form a complete core box 103, wherein the interface between the two is at the largest sand core profile. And set the live block in the necessary position.

[0050] After the sand core is formed, the core box 103 must be separated from the sand core, as long as the interface between the upper (left) half core box 101 and the right (lower) half core box 102 is set at the largest part of the sand core contour, it can be convenientl...

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PUM

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Abstract

The invention discloses an integral core box group of a swing bolster for a railway carriage, which comprises an upper core box, a lower core box and a plurality of moving blocks, wherein the upper and the lower core boxes have a separation interface of a substantially horizontal folding line passing through the maximal profile of an integral core; and the moving blocks are arranged correspondingto sections outside the separation interface such as bumps and bevels, which comprises an upper and a lower bump pairs, i.e. a left and a right upper bumps and a left and a right lower bumps, corresponding to a symmetrical line close to the length direction of the integral core, and a left first moving block and a right first moving block arranged centrosymmetrically with respect to a symmetricalline in the width direction; two pairs of second moving blocks are arranged on two inward lower bevels close to two symmetrical waist sections on both ends of the integral core in the length direction; and each pair of the second moving blocks are arranged symmetrically with respect to the center of a symmetrical line in the width direction and have an inward lower bevel corresponding to the waist section of the integral core on one side of each pair of the second moving blocks facing an inner cavity. The swing bolster sand core obtained by the core box group has no assembly error and easy size accuracy control.

Description

technical field [0001] The present invention relates to the processing technology of train carriage bolsters, in particular to a train carriage bolster inner cavity integral core box set and the bolster sand core obtained by using the integral core core box set. The present invention also relates to a processing Method for bolster cores. Background technique [0002] The railway freight car compartment is composed of car body, bogie, brake device, coupler buffer device and other parts. Among them, the function of bogie is to support the car body, guide the vehicle to run along the track, and bear various loads from the car body and the line. The bolster is the main support in the truck bogie system, which on the one hand enables the truck to change its running direction and on the other hand carries the weight of the truck. [0003] Currently, bolsters are produced by casting. Since the bolster has several inner cavities and inner holes, when casting, sand cores need to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/10
Inventor 张瀛白文弟刘金海胡昌军
Owner CRRC QIQIHAR ROLLING CO LTD
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