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Portal frame

About: Portal frame is a research topic. Over the lifetime, 1778 publications have been published within this topic receiving 7210 citations.


Papers
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Patent
22 May 2013
TL;DR: In this paper, a durability test table for automobile touch screens is presented, which consists of a test table machine frame, a two-dimensional automatic working table, a loading device, and a combination clamp.
Abstract: The utility model discloses a durability test table for automobile touch screens. The durability test table for the automobile touch screens aims at solving the problems that in the prior art, a durability test cannot be performed on the touch screens of different models and precision and reliability of testing devices are poor, and the like. A mechanical part comprises a test table machine frame (1), a two-dimensional automatic working table (2), a loading device (4) and a combination clamp (5). The test table machine frame is composed of a test table frame and a portal frame, and the portal frame is installed on one side of a middle table surface of the test table frame. The two-dimensional automatic working table (2) is composed of a first single-shaft linear robot and a second single-shaft linear robot, the second single-shaft linear robot is fixed on a rolling nut sliding table (28) of the first single-shaft linear robot and is perpendicular to the rolling nut sliding table (28), and the first single-shaft linear robot is horizontally fixedly connected with a beam of the portal frame. The loading device (4) is installed on the rolling nut sliding table (28) in the second single-shaft linear robot in the two-dimensional automatic working table (2), and the combination clamp is installed on the other side of the middle table surface of the test table frame.

2 citations

Patent
28 Dec 2016
TL;DR: The utility model discloses a wheel pair measuring engine, include: a pedestal The portal frame, its is vertical set up in on the base, the portal frame is square frame, the fixed first cylinder in top of portal frame centring means, its including slidable respectively set up by a pair of fixing device of the side of portal frames as mentioned in this paper.
Abstract: The utility model discloses a wheel pair measuring engine, include: a pedestal The portal frame, its is vertical set up in on the base, the portal frame is square frame, the fixed first cylinder in top of portal frame, centring means, its including slidable respectively set up in a pair of fixing device of the side of portal frame, a pair of fixing device is located the portal frame is inboard to set up relatively each other, fixing device locates including sliding the left side of portal frame or a pair of fixed plate on right side, a pair of fixed plate sets up each other relatively to the interim right fixed axle of tight pulley, the utility model discloses simple structure, convenient operation can realize that measured data is accurate, the noise is little, has fine market perspective

2 citations

Journal ArticleDOI
TL;DR: In this paper, it is shown that by properly inclining the frame columns one can increase the buckling load for two-bar and portal frames, which is worth considering in frame optimization.

2 citations

Patent
03 Apr 2018
TL;DR: In this paper, a pneumatic tension doubling winder with dust removal function, including the portal frame, is described, which is open-ended hollow structure for both sides, symmetrical has four supports on the bottom inner wall of portal frame.
Abstract: The utility model discloses a pneumatic tension doubling winder with dust removal function, including the portal frame, the portal frame is open -ended hollow structure for both sides, symmetrical hasfour supports on the bottom inner wall of portal frame, lie in and install running roller with rotating between two supports of one side, common winding has the stranded silk thread on two running rollers, be equipped with fixed mounting first supporting shoe on the inner wall bottom the portal frame between two running rollers, slidable mounting has the guide post in the first supporting shoe, and the both ends of guide post all extend to outside the first supporting shoe, the welding had the second supporting shoe on one side bottom inner wall of first supporting shoe was kept away from tothe portal frame, one side welding that the second supporting shoe is close to the guide post has the cylinder, the output shaft and the guide post welded fastening of cylinder. The utility model discloses simple structure, convenient operation can fine removing dust, and the guarantee has been brought to the body and mind safety of giving people, and when needing to be changed the filter screen in addition, completion that can be very convenient is to the dismouting of filter screen.

2 citations

Journal ArticleDOI
TL;DR: In 1991, a two-level reinforced concrete portal frame, damaged by alkali-silica reaction, was repaired by demolishing and reconstructing the upper beam, and strain measurements at the junction of the old and new concretes showed very little differential movement as mentioned in this paper.
Abstract: In 1991 a two-level reinforced concrete portal frame, damaged by alkali�silica reaction, was repaired by demolishing and reconstructing the upper beam. Strain measurements at the junction of the old and new concretes showed very little differential movement over the next year. This brief article reports on strains that occurred during 4½ years from 1992 to 1996.

2 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202310
202222
202121
202075
2019129
2018133