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Novel pavement material intensity tester

A pavement material and tester technology, applied in the direction of applying stable tension/pressure to test material strength, etc., can solve the problems of low detection accuracy, low detection efficiency, large operation error, etc., and achieve good detection accuracy and high work efficiency Effect

Inactive Publication Date: 2007-10-24
SHANDONG LUDA TEST INSTR
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Problems solved by technology

[0002] The pavement material strength tester is mainly used to test the load-carrying ratio (CBR), compressive rebound modulus and unconfined compressive strength of pavement materials. In the existing technology, the tester mostly uses a mechanical force measuring ring And the dial indicator requires manual reading before statistical analysis, and the transmission mode used for the lifting plate is mostly hydraulic transmission or ordinary motor transmission, resulting in large operating errors, low detection accuracy, time-consuming and laborious, and low detection efficiency

Method used

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Embodiment Construction

[0008] The present invention is described in detail below in conjunction with accompanying drawing:

[0009] The two sides of the transmission base 1 are respectively fixed column A2 and column B3, the top of the two columns is fixed with a beam 4, the inside of column A2 and column B3 is empty, and their inner surfaces are provided with wide grooves, and the screw rods in column A2 are respectively A5 and the screw B6 located in the column B3 pass through the base 1 and are fixedly connected with the synchronous gear under the base 1, the screw A5 is connected with the gear A8, the screw B6 is connected with the gear B9, and the gear A8 and the gear B9 are connected through a timing belt 10 , the gear B9 is connected to the rotating shaft of the servo motor 11, the transmission nut A12 and the transmission nut B13 are respectively sleeved on the screw rod A5 and the screw rod B6, the diameter, the helix angle and the pitch of the screw rod A5 and the screw rod B6 are the same,...

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Abstract

The invention discloses a novel road material strength test machine, comprising a base, a post fixed on the base and a beam fixed on the top of post, wherein the inner surface of the hollow post is arranged with a wide groove, a bolt in the post is through the base and fixed with a synchronous gear under the base, the synchronous gear is connected with a servo motor, a transmission nut is sheathed on the bolt, a lifting disc is horizontally arranged with two ends through the wide groove and fixed on the transmission nut. The inventive test machine uses screw transmission to quickly and accurately move the lifting disc to test position, with high working efficiency, saved power and time, and better test accuracy.

Description

technical field [0001] The invention relates to a pavement material strength test instrument used in road construction projects by departments such as traffic, highway, railway and municipal administration. Background technique [0002] The pavement material strength tester is mainly used to test the load-carrying ratio (CBR), compressive rebound modulus and unconfined compressive strength of pavement materials. In the existing technology, the tester mostly uses a mechanical force measuring ring And the dial indicator requires manual reading before statistical analysis, and the transmission mode used for the lifting of the lifting plate is mostly hydraulic transmission or ordinary motor transmission, resulting in large operating errors, low detection accuracy, time-consuming and laborious, and low detection efficiency. Contents of the invention [0003] In order to solve the above existing problems, the present invention provides a new type of pavement material strength te...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/16
Inventor 常娟郝德亮王代勤唐飞
Owner SHANDONG LUDA TEST INSTR
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