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Sleeper embedded bushing positioning device, and positioning and demouding method

A technology of positioning device and sleeve, applied in the field of sleeper manufacturing, can solve the problems of easy damage of rubber bolts, unsatisfactory application effect, difficulty in demoulding, etc., and achieve the effects of reducing damage, improving demoulding work efficiency, and being easy to operate and master.

Active Publication Date: 2007-12-12
CHINA RAILWAY FIRST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since this method is effectively fixed by the frictional resistance generated by the rubber, and at the same time has enough elasticity to meet the needs of demoulding, the rubber bolts are easily damaged during production, and demoulding is also very difficult. The application effect is not ideal

Method used

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  • Sleeper embedded bushing positioning device, and positioning and demouding method

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] As shown in Figure 1, the sleeper pre-embedded casing positioning device of the present invention includes a tube body 1 with a lumen in the center, a center nut 2 is installed on one end of the lumen, and the other end is connected to an interface 3; There is a spool 5, one end of the spool 5 passes through the middle of the fixed core nut 2, and the other end is connected to a valve body 6 with a tapered surface, and the valve body 6 is arranged at the connection between the lumen and the interface 3; The valve core 5 is provided with a guide groove 7 along its length; the tube body 1 is provided with a hole 8 communicating with the outside of the lumen; the outer wall of the tube body 1 is provided with a sealing ring 4 and a fixing nut 9 .

[0022] In order to prevent impurities from entering the pipe body 1 during water injection, a filter 10 is provided on...

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Abstract

The track collar sleeve tube positioning and mold fall off method comprises the tube with tubular cavity with one end installed of fixed core nut, the other connected to the interface, valve core inside the tubular cavity with one end going through by the fixed core nut, the other connected to the valve with tapering side, holes on the tube connecting the tube cavity with the outside, seal ring and fixed nut at the outside wall of the tube. It grinds the mold, installs steel rib and sleeve tube, connecting the its positioning device with the vacuum pump on the vibrating table, turning on the vacuum pump, pouring concrete, using high pressure water stripping the mold. It not only ensures the precise positioning of the sleeve tube, but also ejects the hydraulic pressure with improved stripping efficiency, reduced damage of inertia stripping to track concrete.

Description

technical field [0001] The invention relates to the technical field of sleeper manufacturing, in particular to a sleeper pre-embedded casing positioning device and a positioning and demoulding method. Background technique [0002] With the construction of railway passenger dedicated lines, the research task of ballastless track construction technology and complete construction equipment is more urgent. No matter what kind of ballastless track is used, the high precision of its bearing platform part is to ensure the accuracy of the entire track. The key point is that the embedded casing is used as the positioning device of the rail platform, and its accuracy is particularly important. In Germany, the embedded casing is installed on the corresponding platform during the model operation, and most of the installation work is completed by computer-controlled machinery, and the cost of mechanical equipment is very high. The positioning of the embedded casing of the traditional sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B23/00B28B1/087B28B11/24B28B13/06
Inventor 施连生杨文生郑剑兵
Owner CHINA RAILWAY FIRST GRP CO LTD
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