CN201575958U - Load-shear test machine - Google Patents

Load-shear test machine Download PDF

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Publication number
CN201575958U
CN201575958U CN2009201242464U CN200920124246U CN201575958U CN 201575958 U CN201575958 U CN 201575958U CN 2009201242464 U CN2009201242464 U CN 2009201242464U CN 200920124246 U CN200920124246 U CN 200920124246U CN 201575958 U CN201575958 U CN 201575958U
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CN
China
Prior art keywords
board
oil cylinder
platen
pressure
shear
Prior art date
Application number
CN2009201242464U
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Chinese (zh)
Inventor
阮伟鑫
阮海祥
徐峰
杨宝华
Original Assignee
浙江辰鑫机械设备有限公司
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Application filed by 浙江辰鑫机械设备有限公司 filed Critical 浙江辰鑫机械设备有限公司
Priority to CN2009201242464U priority Critical patent/CN201575958U/en
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Publication of CN201575958U publication Critical patent/CN201575958U/en

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Abstract

The utility model discloses a load-shear test machine comprising a load holding mechanism and a shear mechanism, wherein, the load holding mechanism comprises an upper pressure plate and a lower pressure plate, the load holding mechanism further comprises a cross beam and a jacking device, the cross beam is fixed with the upper plane of the upper pressure plate, the jacking device is fixed with the lower plane of the lower pressure plate, the cross beam can drive the upper pressure plate to conduct vertical movement, the jacking device can drive the lower pressure plate to conduct vertical movement, the shear mechanism comprises a pulling tray and a connecting rod which are connected, the shear mechanism further comprises a traction device, the traction device can drive the connecting rod to conduct horizontal movement, a roller is arranged on the lower plane of the pulling tray, a pressure sensor is arranged between the pulling tray and the connecting rod, the pressure sensor is electrically connected with a control center, a heating device and a temperature sensor are further arranged on the upper and the lower pressure plates, the temperature sensor is electrically connected with the control center, the jacking device comprises a main oil cylinder and a base, the main oil cylinder is fixed on the base, the traction device comprises a shear oil cylinder and a shear oil cylinder base, and the shear oil cylinder is fixed on the shear oil cylinder base.

Description

A kind of pressure-shear test machine

Technical field

The utility model relates to a kind of rubber performance test unit, relates to a kind of rubber support or rubber blanket pressure-shear test machine specifically.

Background technology

In the existing different types of rridges, beam is placed on the bridge pier usually, need to place the purpose that rubber support is reached for the bridge damping between the surface of contact of beam and bridge pier, is a important content in the science of bridge building to the Mechanics Performance Testing of rubber support therefore.Pressure-shear test machine is to be used for to the anti-compression properties test of carrying out rubber support, anti-shear performance test etc., existing pressure-shear test machine generally includes top board, lower platen and pumping board, when carrying out the anti-compression properties test, the rubber test specimen is placed between top board and the lower platen, then the past direction vertically upward of lower platen is moved, make top board and lower platen clamp the rubber test specimen, make lower platen the load of a vertical direction be arranged, estimate the anti-compression properties of rubber test specimen by the test of certain frequency and load the rubber test specimen.

When carrying out the anti-shear performance test, two identical rubber test specimens are placed on respectively between top board and pumping board, lower platen and the pumping board, by applying the sanction lotus of regulation between top board and the lower platen, then pumping board is moved the distance of regulation to horizontal direction, the horizontal force that is applied when reading mobile predetermined distance by the sensor on the pumping board, thus the shear behavior of rubber test specimen estimated.

Adopt this pressure-shear test machine mainly to have following defective:

One, can't simulate in the environment temperature of working site rubber, particularly some is operated in the rubber of high temperature occasion, the environment temperature of work adopts existing pressure-shear test machine can't review the actual performance of test specimen accurately up to hundreds of degree centigrade.

Two, when carrying out cut resistance test, the performance of tested two rubber support test specimens up and down is incomplete same, lump together the actual performance that the conclusion of testing to draw can not embody each piece test specimen fully at two test specimens, in addition because there is certain weight in pumping board, can additionally apply a vertical power with test block between the pumping board to lower platen, make the friction of test block between lower platen and the pumping board and pumping board greater than the friction of test block between top board and the pumping board and pumping board like this, so also influence accuracy of experimental results.

Summary of the invention

In order to overcome above-mentioned defective, the utility model aims to provide and a kind ofly can accurately carry out incompressible to rubber support, a kind of pressure-shear test machine of shear behavior test, comprise: pressure holding mechanism and cutting mechanism, described pressure holding mechanism comprises top board and lower platen, described pressure holding mechanism also comprises crossbeam and jack unit, the last plane of described crossbeam and top board is fixed, the lower plane of described jack unit and lower platen is fixed, it is for vertical movement that described crossbeam can drive top board, it is for vertical movement that described jack unit can drive lower platen, described cutting mechanism comprises pumping board and connecting rod, described pumping board is connected with connecting rod, described cutting mechanism also comprises draw-gear, but described draw-gear drivening rod moves horizontally, the lower plane of described pumping board is provided with roller, is provided with pressure transducer between described pumping board and the connecting rod, and described pressure transducer is electrically connected with control center.

Described top board and lower platen also are provided with heating arrangement.

Be provided with the heating arrangement hole in described top board and the lower platen, described heating arrangement places in the heating arrangement hole, and described heating arrangement is the armouring heating tube.

Described top board and lower platen also are provided with temperature sensor, and described temperature sensor is electrically connected with control center.

Described jack unit comprises master cylinder and base, and described master cylinder is fixed on the base.

Described draw-gear comprises to be sheared oil cylinder and shears oil cylinder seat, shears oil cylinder and is fixed on the shearing oil cylinder seat.

Be provided with jacking block between described top board and the shearing oil cylinder seat, be provided with jacking block between described lower platen and the shearing oil cylinder seat, described jacking block withstands top board respectively and shears oil cylinder seat, lower platen and shearing oil cylinder seat.

Adopt pressure-shear test machine of the present utility model to carry out incompressible to the rubber test specimen, during the shear behavior test, because last, be provided with heating arrangement in the lower platen, by last, lower platen can heat test specimen, control the temperature of test specimen by temperature sensor, reach being operated in the hot environment simulation of the rubber in the high-temperature work environment, when carrying out the shear behavior test, because only put a rubber support test block between pumping board and top board, because the lower plane of its pumping board is provided with roller, rolling friction between pumping board and the lower platen is very little, with respect to test block and top board, friction force between the pumping board can be ignored, in addition, pumping board is controlled by pressure transducer the tractive force of test block, and such test result more approaches the actual performance of rubber test block.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the upper and lower pressing plate in the utility model.

Among the figure: 1-pressure holding mechanism, 2-cutting mechanism, 3-test block, 4-control center, the 11-top board, 12-lower platen, 13-crossbeam, 14-jack unit, the 15-master cylinder, 16-base, 17-heating arrangement, 18-heating arrangement hole, the 19-temperature sensor, 21-pumping board, 22-connecting rod, the 23-roller, 24-pressure transducer, 25-draw-gear, 26-shears oil cylinder seat, the 27-jacking block, and 28-shears oil cylinder.

Embodiment

Advance a bit to illustrate the utility model below in conjunction with accompanying drawing:

One, as shown in Figure 1, the utility model discloses a kind of pressure-shear test machine, comprise: pressure holding mechanism 1 and cutting mechanism 2, described pressure holding mechanism 1 comprises top board 11 and lower platen 12, described pressure holding mechanism 1 also comprises crossbeam 13 and jack unit 14, described crossbeam 13 is fixed with the last plane of top board 11, described jack unit 14 is fixed with the lower plane of lower platen 12, it is for vertical movement that described crossbeam 13 can drive top board 11, it is for vertical movement that described jack unit 14 can drive lower platen 12, described cutting mechanism 2 comprises pumping board 21 and connecting rod 22, described pumping board 21 is connected with connecting rod 22, described cutting mechanism 2 also comprises draw-gear 25, but described draw-gear 25 drivening rods 22 move horizontally, the lower plane of described pumping board 21 is provided with roller 23, is provided with pressure transducer 24 between described pumping board 21 and the connecting rod 22, and described pressure transducer 24 is electrically connected with control center 4.

Usually the accepted standard test block is of a size of 400 * 400mm, individual layer inner rubber layer thickness is 9mm, the maximum design pressure that adopts is 10Mpa, reference block by 400 * 400mm is an example, the test power of compacting is P=400 * 400 * 10=1600KN, and individual layer inner rubber layer thickness is an example for the 9mm reference block, and the inner rubber number of plies is 6 layers, limit shear strain 200%, the then extreme displacement of level=6 * 9 * 200%=108mm.

When carrying out the rubber support shear test, earlier rubber support test block 3 is lain in a horizontal plane between lower platen 11 and the pumping board 21, and centering, the center of test block 3 is overlapped with the center of lower platen 11 and pumping board 21, adjust crossbeam 13 then, drive top board 11 and pumping board 21 preliminary compacting test blocks 3, start jack unit 14 this moment, drive lower platen 12 advances any to carry out compacting and reaches compaction test power 1600KN test block 3;

Start cutting mechanism 2 then, thereby cutting mechanism 2 drivening rods 22 drive pumping board 21 and do the horizontally tracting motion, when horizontal shift reaches the limit of displacement 106mm, read the value of pressure transducer 24 by control center 4, thereby reach mensuration the shear behavior of test block 3.

When rubber support shear testing maschine of the present utility model carries out the shear behavior test to rubber support test block 3, test block 3 is by the upper surface clamping of top board 11 lower surfaces and pumping board 21, because be provided with roller 23, roller 23 is to roll at the upper surface of lower platen 12 on the lower surface of pumping board 21.Because the rolling friction between pumping board 21 and the lower platen 12 is very little, can ignore the friction force between test block 3 and top board 11, pumping board 21, such test result more approaches the actual performance of rubber test block.

Certainly can also carry out shear test to the rubber support test block of other size in the related standards and thickness, concrete compaction test power and horizontal limeit displacement numerical value can be with reference to concrete standards.

Two, as shown in Figure 2, the top board 11 of pressure-shear test machine of the present utility model and lower platen 12 also are provided with heating arrangement 17.

Be provided with heating arrangement hole 18 in described top board 11 and the lower platen 12, described heating arrangement 17 places in the heating arrangement hole 18, and described heating arrangement 17 is the armouring heating tube.

Described top board 11 and lower platen 12 also are provided with temperature sensor 19, and described temperature sensor 19 is electrically connected with control center 4.

When being operated in the performance test of the rubber under the hot environment for some, want the super heated rubber sealing gasket of nuclear power plant as some work, its working temperature is up to 300 ℃, when adopting pressure-shear test machine of the present utility model to carry out the anti-compression properties test, after test specimen 3 being clamped between top board 11 and the lower platen 12, heat by 17 pairs of top boards 11 of heating arrangement and lower platen 12, thereby realize the test specimen 3 that is clamped between top board 11 and the lower platen 12 is heated, when arriving design temperature as 300 ℃, be transmitted to control center 4 by temperature sensor 19, begin test specimen 3 is carried out the anti-compression properties test, in like manner, can also do testing shear performance to the rubber that is operated under the hot environment.

Three, as shown in Figure 1, the jack unit 14 of pressure-shear test machine of the present utility model comprises master cylinder 15 and base 16, and described master cylinder 15 is fixed on the base 16.

Described draw-gear 25 comprises to be sheared oil cylinder 28 and shears oil cylinder seat 26, shears oil cylinder 28 and is fixed on the shearing oil cylinder seat 26.

Be provided with jacking block 27 between described top board 11 and the shearing oil cylinder seat 26, be provided with jacking block 27 between described lower platen 12 and the shearing oil cylinder seat 26, described jacking block 27 withstands top board 11 respectively and shears oil cylinder seat 26, lower platen 12 and shearing oil cylinder seat 26.

Generally, jack unit 14 can adopt oil gear, comprises master cylinder 15 and base 16, described master cylinder 15 is fixed on the base 16, adopt oil gear, can evenly exert pressure, and when reaching compaction test power, can keep constant voltage constant test block 3.

Generally, draw-gear 25 also adopts oil gear, comprises shearing oil cylinder 28 and shearing oil cylinder seat 26, shears oil cylinder 28 and is fixed on the shearing oil cylinder seat 26.Adopt oil gear, when pumping board 21 is drawn, can evenly apply tractive force, and can set in advance application of force program by modes such as computer controls.

In order to make pumping board 21 top board 11 and shear between oil cylinder seat 26, lower platen 12 and the shearing oil cylinder seat 26 and be easy to generate displacement when test block 3 is drawn, in order to overcome this defective, the utility model is provided with jacking block 27 between top board 11 and shearing oil cylinder seat 26, be provided with jacking block 27 between described lower platen 12 and the shearing oil cylinder seat 26, described jacking block 27 withstands top board 11 respectively and shears oil cylinder seat 26, lower platen 12 and shear oil cylinder seat 26.

Adopt pressure-shear test machine of the present utility model to carry out incompressible to the rubber test specimen, during the shear behavior test, because last, lower platen 11, be provided with heating arrangement 17 in 12, by last, lower platen 11,12 can heat test specimen 3, control the temperature of test specimen by temperature sensor 19, reach being operated in the hot environment simulation of the rubber in the high-temperature work environment, when carrying out the shear behavior test, because only put a rubber support test block 3 between pumping board 21 and top board 11, because the lower plane of its pumping board 21 is provided with roller 23, rolling friction between pumping board 21 and the lower platen 12 is very little, with respect to test block 3 and top board 11, friction force between the pumping board 3 can be ignored, in addition, the tractive force of 21 pairs of test blocks 3 of pumping board is controlled by pressure transducer 24, and such test result more approaches the actual performance of rubber test block.

Claims (7)

1. pressure-shear test machine, comprise: pressure holding mechanism (1) and cutting mechanism (2), described pressure holding mechanism (1) comprises top board (11) and lower platen (12), described pressure holding mechanism (1) also comprises crossbeam (13) and jack unit (14), described crossbeam (13) is fixed with the last plane of top board (11), described jack unit (14) is fixed with the lower plane of lower platen (12), it is for vertical movement that described crossbeam (13) can drive top board (11), it is for vertical movement that described jack unit (14) can drive lower platen (12), described cutting mechanism (2) comprises pumping board (21) and connecting rod (22), described pumping board (21) is connected with connecting rod (22), described cutting mechanism (2) also comprises draw-gear (25), described draw-gear (25) but drivening rod (22) move horizontally, the lower plane that it is characterized in that described pumping board (21) is provided with roller (23), be provided with pressure transducer (24) between described pumping board (21) and the connecting rod (22), described pressure transducer (24) is electrically connected with control center (4).
2. pressure-shear test machine according to claim 1 is characterized in that described top board (11) and lower platen (12) also are provided with heating arrangement (17).
3. pressure-shear test machine according to claim 1 and 2, it is characterized in that being provided with heating arrangement hole (18) in described top board (11) and the lower platen (12), described heating arrangement (17) places in the heating arrangement hole (18), and described heating arrangement (17) is the armouring heating tube.
4. pressure-shear test machine according to claim 1 is characterized in that described top board (11) and lower platen (12) also are provided with temperature sensor (19), and described temperature sensor (19) is electrically connected with control center (4).
5. pressure-shear test machine according to claim 1 is characterized in that described jack unit (14) comprises master cylinder (15) and base (16), and described master cylinder (15) is fixed on the base (16).
6. pressure-shear test machine according to claim 1 is characterized in that described draw-gear (25) comprises shearing oil cylinder (28) and shears oil cylinder seat (26), shears oil cylinder (28) and is fixed on shearing oil cylinder seat (26)
7. pressure-shear test machine according to claim 3, it is characterized in that described top board (11) and shear between the oil cylinder seat (26) being provided with jacking block (27), be provided with jacking block (27) between described lower platen (12) and the shearing oil cylinder seat (26), described jacking block (27) withstands top board (11) respectively and shears oil cylinder seat (26), lower platen (12) and shear oil cylinder seat (26).
CN2009201242464U 2009-07-07 2009-07-07 Load-shear test machine CN201575958U (en)

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103424316A (en) * 2013-08-06 2013-12-04 浙江中重精工机械有限公司 Multifunctional compression and shear test machine
CN103454151A (en) * 2013-08-20 2013-12-18 中国商用飞机有限责任公司 Composite compression-shear loading testing device
CN103543076A (en) * 2012-07-13 2014-01-29 广州海宁橡胶有限公司 Method for testing shear compression performance of rubber fender
CN103543004A (en) * 2012-07-13 2014-01-29 广州海宁橡胶有限公司 Method for testing oblique compression performance of rubber fender
CN104089831A (en) * 2014-06-30 2014-10-08 天地科技股份有限公司 Test bed for testing shear load of anchor rod and test method of test bed
CN104749040A (en) * 2015-03-03 2015-07-01 中国石油天然气股份有限公司 Test detection device and method for high temperature packer rubber tube
CN105319134A (en) * 2015-11-09 2016-02-10 航天晨光股份有限公司 Shearing stiffness measurement device for metal hose
CN105651619A (en) * 2016-03-08 2016-06-08 安徽大学 Device for testing heat resistance and pressure resistance of rubber products
CN107462381A (en) * 2017-07-31 2017-12-12 浙江省太阳能产品质量检验中心 A kind of detection means for rack of solar water heater steadiness
CN109752242A (en) * 2019-03-15 2019-05-14 河南交通职业技术学院 A kind of compression shear test device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103543076A (en) * 2012-07-13 2014-01-29 广州海宁橡胶有限公司 Method for testing shear compression performance of rubber fender
CN103543004A (en) * 2012-07-13 2014-01-29 广州海宁橡胶有限公司 Method for testing oblique compression performance of rubber fender
CN103424316A (en) * 2013-08-06 2013-12-04 浙江中重精工机械有限公司 Multifunctional compression and shear test machine
CN103424316B (en) * 2013-08-06 2015-10-28 浙江中重精工机械有限公司 A kind of multi-functional pressure-shear test machine
CN103454151A (en) * 2013-08-20 2013-12-18 中国商用飞机有限责任公司 Composite compression-shear loading testing device
CN104089831A (en) * 2014-06-30 2014-10-08 天地科技股份有限公司 Test bed for testing shear load of anchor rod and test method of test bed
CN104749040A (en) * 2015-03-03 2015-07-01 中国石油天然气股份有限公司 Test detection device and method for high temperature packer rubber tube
CN105319134A (en) * 2015-11-09 2016-02-10 航天晨光股份有限公司 Shearing stiffness measurement device for metal hose
CN105651619A (en) * 2016-03-08 2016-06-08 安徽大学 Device for testing heat resistance and pressure resistance of rubber products
CN107462381A (en) * 2017-07-31 2017-12-12 浙江省太阳能产品质量检验中心 A kind of detection means for rack of solar water heater steadiness
CN107462381B (en) * 2017-07-31 2019-05-24 浙江省太阳能产品质量检验中心 A kind of detection device for rack of solar water heater stability
CN109752242A (en) * 2019-03-15 2019-05-14 河南交通职业技术学院 A kind of compression shear test device

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100908

Termination date: 20130707