Thermostat rotating table shaft system seal design

A temperature box and turntable technology, applied in the direction of engine seals, mechanical equipment, instruments, etc., can solve the problems of short circuit of conductive slip rings, entry of dust and water vapor, bearing corrosion, etc., to prevent dust and water vapor from entering the inside of the bearing and avoid condensation. The effect of producing water and improving the accuracy of use

Active Publication Date: 2016-09-21
JIUJIANG PRECISION MEASURING TECH RES INST
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AI Technical Summary

Problems solved by technology

[0003] The shaft seal of the existing thermostat turntable adopts a labyrinth seal, and is equipped with a diversion hole to guide out the condensed water generated at low temperature; this sealing method causes the entire shaft system to be very humid, which will cause corrosion to the bearing and damage Slip ring causes short circuit
During the normal temperature test, dust and water vapor will enter the gap between the main shaft and the frame, which will affect the accuracy of the shafting

Method used

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  • Thermostat rotating table shaft system seal design

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Embodiment

[0018] like figure 1 As shown, this embodiment is used in the shaft seal design of the incubator turntable, including: test equipment 1, incubator 2, working table 3, upper sealing plate 4, lower sealing plate 5, sealing bracket 6, frame 7, main shaft 8, Conductive slip ring 9, heating plate 10 and sealing ring 11.

[0019] like figure 1 As shown, the workbench 3 is fixed on the spindle 8 for installing the test equipment 1 and rotates together with the shaft system. An upper sealing plate 4 and a lower sealing plate 5 are installed between the main shaft 8 and the sealing bracket 7, a labyrinth sealing structure is formed between the two sealing plates, and the lower sealing plate 5 is filled with sealing grease to complete the rotary sealing function.

[0020] 2. The conductive slip ring 9 is fixed on the lower end face of the inner flange of the main shaft 8, and is used to transmit the signal of the test equipment 1 to the measurement and control system, and collect s...

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Abstract

Disclosed is thermostat rotating table shaft system seal design. A thermostat is included, a spindle is arranged at the bottom of the thermostat, a working table face is arranged at the upper end of the spindle, and is connected with a test device, a lower sealing plate is fixed to the upper end of the spindle, a conducting sliding ring is fixed to the lower end of the spindle, a heating disc is fixed to the outer side of the lower end of the spindle, a sealing support is arranged on the outer side of the heating disc, an upper sealing plate is arranged at the upper end of the sealing support, the upper sealing plate and the lower sealing plate are designed to be of a labyrinth structure, a groove of the lower sealing plate is filled with sealing grease, the sealing support is fixed to a frame, the frame is arranged on the outer side of the thermostat, and a sealing ring is arranged between the thermostat and the frame. The design has the beneficial effects of being convenient to mount and debug, stable in performance and low in manufacturing cost, and the service life of a shaft system and the service life of the conducting sliding ring can be prolonged.

Description

technical field [0001] The invention relates to a shaft seal design of a thermostat turntable. Background technique [0002] In order to meet the requirements of environmental adaptability, many test instruments need to perform high and low temperature tests, and at the same time output the test signal, so a conductive slip ring should be installed in the rotating shaft; [0003] The shaft seal of the existing thermostat turntable adopts a labyrinth seal, and is equipped with a diversion hole to guide out the condensed water generated at low temperature; this sealing method causes the entire shaft system to be very humid, which will cause corrosion to the bearing and damage The slip ring caused a short circuit. During the normal temperature test, dust and water vapor will enter the gap between the main shaft and the frame, which will affect the accuracy of the shafting. Contents of the invention [0004] The purpose of the present invention is to provide a seal design fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/447G01D11/00
CPCF16J15/4472G01D11/00
Inventor 刘喜平付和平陈世炉殷晶晶常勇军
Owner JIUJIANG PRECISION MEASURING TECH RES INST
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