SU421912A1 - DEVICE FOR TESTING ON SHIFT SAMPLE SCREENS - Google Patents

DEVICE FOR TESTING ON SHIFT SAMPLE SCREENS

Info

Publication number
SU421912A1
SU421912A1 SU1769760A SU1769760A SU421912A1 SU 421912 A1 SU421912 A1 SU 421912A1 SU 1769760 A SU1769760 A SU 1769760A SU 1769760 A SU1769760 A SU 1769760A SU 421912 A1 SU421912 A1 SU 421912A1
Authority
SU
USSR - Soviet Union
Prior art keywords
testing
walls
sample screens
shift sample
rollers
Prior art date
Application number
SU1769760A
Other languages
Russian (ru)
Original Assignee
И. М. Линьков
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by И. М. Линьков filed Critical И. М. Линьков
Priority to SU1769760A priority Critical patent/SU421912A1/en
Application granted granted Critical
Publication of SU421912A1 publication Critical patent/SU421912A1/en

Links

Description

1one

Изобретение относитс  к . деревообрабатывающей промышленности, зан той ироизводством фанеры, и к строительству. Оно может быть пснользовапо при проведении испытаний на сдвиг клееных дерев нных и фанерных конструкций .This invention relates to. woodworking industry, the use of plywood, and construction. It may be useful when conducting shear tests on glued wood and plywood structures.

Известны устройства дл  испытани  на сдвиг образцов фанеры, включающие рабочие элементы с выступами дл  упора образца и ролики. Однако в таких устройствах не удаетс  значительно снизить трение.Devices for testing plywood specimens are known, including working elements with protrusions for abutting the specimen and rollers. However, in such devices it is not possible to significantly reduce friction.

Цель изобретени  - уменьшение вли ни  трени  образца о стенку и нормальных отклон ющих усилий при испытании.The purpose of the invention is to reduce the effect of the friction of the sample on the wall and the normal deflection force during testing.

Достигаетс  это тем, что рабочие элементы выполнены в виде двух параллельно расположенных подвижных стенок, у которых одни концы свободны, а другие размещены в сферических нодп тпиках, причем стенки друг к другу с помощью винтового приспособлени  с размещенными в его пазах роликами .This is achieved by the fact that the working elements are made in the form of two parallel movable walls, in which one ends are free and the others are placed in spherical nodes, and the walls are towards each other with the help of a screw device with rollers placed in its grooves.

На чертеже изображено устройство.The drawing shows the device.

Испытуемый образец 1 помещаетс  между двум  стенками 2 устройства и упираетс  верхней и иижией гран лги в уступы степок. Концы стенок размещены в сферических подп тниках 3. После этого стенки 2 с помощью винтового приспособлени , выполненного изThe test sample 1 is placed between the two walls 2 of the device and rests against the upper and outer granules on the steps of the steppes. The ends of the walls are housed in spherical liners 3. After this, the walls 2 are screwed using a screw device made of

кронштейнов 4 и винтов 5, и роликов 6 придвигают к боковым гран м образца 1.the brackets 4 and the screws 5 and the rollers 6 are moved to the side edges of sample 1.

Устройство с установленным в нем образцом помещаетс  опорными плитами пресса и подвергаетс  усилию . Сжимающа  сила Р действует на верхнюю и нижнюю стенки 2 устройства. Стенки 2 перемещаютс  свободно одна относительно другой практически без трашш вследствие «ал.ичи A device with a sample installed in it is placed on the press base plates and subjected to force. The compressive force P acts on the upper and lower walls 2 of the device. Walls 2 move freely one relative to the other with little or no trash owing to "al.ichi

роликов 6. Возникающие в образце нормально отрывающие усили  погашаютс  вследствие плотного прилипани  обеих боковых его граней к подвижным стенкам. Усилие сжати  практически без потерь наrollers 6. Normally tearing forces arising in the specimen are extinguished due to the tight adhesion of its two lateral faces to the movable walls. Compressive force with virtually no loss on

трение передаетс  на образец 1 и вызывает его разрушение но плоскости сдвига. Плоскость действующего усили  совпадает при этом с плоскостью сдвпга, что обеспечиваетс  системой уступов и выступов, имеющихс  вfriction is transferred to sample 1 and causes it to collapse in the shear plane. In this case, the plane of the acting force coincides with the plane of the SCVPG, which is ensured by a system of ledges and protrusions located in

подвижных стенках.movable walls.

П р е д мет изобретени PREED MET OF INVENTION

Устройство дл  испытани  на сдвиг образцов фанеры, включающее рабочие элементы с выступами дл  уиора образца и ролики, о тличающеес  тем, что, с целью уменьшени  вли ни  трени  образцов о стенку и нормальных отклон ющих усилий при испытании, рабочие элементы выполнены в виде двух параллельно расположенных подвижных стенок, у которых одни концы свободны, а другие размещены в сферических подп тниках, причем стенки прижаты друг к другу с помощью винтового приспособлени  с размещенными в его пазах роликами.A device for testing the shear of plywood specimens, including work elements with protrusions for holding the specimen and rollers, differing from the fact that, in order to reduce the effect of specimen friction against the wall and normal deflecting forces during testing, the work elements are made in two parallelly arranged movable walls, in which one ends are free, while others are placed in spherical pads, and the walls are pressed to each other by means of a screw device with rollers placed in its grooves.

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SU1769760A 1972-03-28 1972-03-28 DEVICE FOR TESTING ON SHIFT SAMPLE SCREENS SU421912A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1769760A SU421912A1 (en) 1972-03-28 1972-03-28 DEVICE FOR TESTING ON SHIFT SAMPLE SCREENS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1769760A SU421912A1 (en) 1972-03-28 1972-03-28 DEVICE FOR TESTING ON SHIFT SAMPLE SCREENS

Publications (1)

Publication Number Publication Date
SU421912A1 true SU421912A1 (en) 1974-03-30

Family

ID=20509725

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1769760A SU421912A1 (en) 1972-03-28 1972-03-28 DEVICE FOR TESTING ON SHIFT SAMPLE SCREENS

Country Status (1)

Country Link
SU (1) SU421912A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104596924A (en) * 2015-01-15 2015-05-06 唐忠荣 Method for rapidly checking internal bonding strength of artificial board and special clamps
CN105181309A (en) * 2015-08-07 2015-12-23 贵州航瑞科技有限公司 Tool for measuring shearing strength of fastener

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104596924A (en) * 2015-01-15 2015-05-06 唐忠荣 Method for rapidly checking internal bonding strength of artificial board and special clamps
CN105181309A (en) * 2015-08-07 2015-12-23 贵州航瑞科技有限公司 Tool for measuring shearing strength of fastener

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