CN103234834B - Loading device used in road seam filling material low-temperature performance test - Google Patents
Loading device used in road seam filling material low-temperature performance test Download PDFInfo
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- CN103234834B CN103234834B CN201310133624.6A CN201310133624A CN103234834B CN 103234834 B CN103234834 B CN 103234834B CN 201310133624 A CN201310133624 A CN 201310133624A CN 103234834 B CN103234834 B CN 103234834B
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Abstract
The invention discloses a loading device used in a road seam filling material low-temperature performance test, and relates to a material low-temperature performance test loading device. With an existing loading device, test sample assembly speed is low, and loading is carried out with a slide way manner such that certain resistance is caused and test precision is influenced. The invention aims at solving the problems. The device provided by the invention comprises an oil tank, a bearing plate, a transmission unit, a supporting sliding unit, and a loading unit. The transmission unit comprises a motor, a speed reducer, a first bevel gear, a second bevel gear, a transmission shaft, a fixed rack, and a transmission part. The supporting sliding unit comprises a slide rail, a slide plate, a connection assembly, and a transition plate. The loading unit comprises a pressure sensor, a mobile loading platform, a fixed loading platform, and two sets of fixtures. The fixed rack is arranged on the bearing plate arranged on the bottom end face of the oil tank. The slide plate is arranged on the slide rail and can slide on the slide rail. The output end of the motor and the input end of the speed reduced are connected. The first bevel gear is engaged with the second bevel gear. The device provided by the invention is used in the road seam filling material low-temperature performance test.
Description
Technical field
The present invention relates to a kind of material at low temperature performance test charger, be specifically related to a kind of charger for low-temperature performance of road gap-grouting material test, belong to maintenance of surface technical field.
Background technology
At present, the gap-grouting material sold on market is of a great variety, quality is uneven, often can not reach the maintenance effect of expection, some gap-grouting material had just lost efficacy first winter after use, and the cementation of fissures work of repetition has brought huge maintenance work amount and economic loss.So the equipment of developing a set of evaluation gap-grouting material cryogenic property and gap-grouting material and slotted wall adhesion property is vital.Before this, by literature search, China Patent No. is that 200910072201.1 patent of invention has proposed a kind of instrument for measuring low-temperature performance of road gap-grouting material, but, in test, find that original loading system exists some problems: (1), test specimen installation rate are slower, when opening temp. control case, caused the significantly rising of environment temperature, cooling needs the time longer again; (2) can only test a test specimen, at every turn, while testing parallel test specimen, need revision test, inefficiency; (3), while adopting the mode of slideway to load, can produce certain resistance, affect test accuracy; (4), charger leaks cruelly in environmental cabinet, easily produces corrosion; Therefore, gap-grouting material is retained original temperature conditioning unit and data acquisition unit by the present invention, and loading system is invented to design again.
Summary of the invention
The object of the invention is for solve existing charger exist test specimen install speed slow, adopt slideway mode to load, have certain resistance, affect the problem of test accuracy, and then a kind of charger of testing for low-temperature performance of road gap-grouting material is provided.
The present invention addresses the above problem the technical scheme of taking to be: a kind of charger for low-temperature performance of road gap-grouting material test of the present invention comprises oil groove, loading plate, gear unit, support sliding unit and loading unit;
Described gear unit comprises motor, reductor, the first conical gear, the second conical gear, transmission shaft, fixed mount and transmission part;
Support sliding unit and comprise slide rail, slide plate, coupling assembling and rebound;
Loading unit comprises pressure transducer, mobile weighted platform, fixing weighted platform and two cover jigs;
Fixed mount is arranged on the loading plate on the bottom face that is arranged on oil groove, slide rail is installed on loading plate, slide plate is arranged on slide rail and slide plate can slide on slide rail, mobile weighted platform one end for test specimen is installed, and fixing weighted platform is for installing the other end of test specimen;
Fixing weighted platform is connected with fixed mount, mobile weighted platform is connected with slide plate by coupling assembling, on each on fixing weighted platform and mobile weighted platform, a set of jig is installed, two cover jigs are just to arranging, every cover jig comprises portable plate, fixed head, spanner, cylinder, four volute springs and four fore-sets, portable plate and fixed head in every cover jig are set up in parallel, between portable plate and fixed head, be equipped with four fore-sets, four are withstood with portable plate and are fixedly connected with, four fore-sets can slide on fixed head, adjacent one end of the test specimen with on mobile weighted platform of each fore-set is provided with projection, adjacent one end of the test specimen with on fixing weighted platform of each fore-set is provided with projection, on the fore-set between projection and admittedly moving plate, be arranged with a volute spring, one end of spanner is rotationally connected with the mobile weighted platform being connected with slide plate, between fixed head and portable plate, be provided with the cylinder being connected with spanner, the rotation of spanner can drive cylinder rotation, the rotation of cylinder can drive portable plate horizontal reciprocating to move,
The output shaft of motor vertically arranges, the output terminal of motor is connected with the input end of reductor, the output terminal of reductor 4 is provided with the first conical gear, the second conical gear is arranged on transmission shaft, the first conical gear engages with the second conical gear, transmission shaft and fixed mount are rotationally connected, one end of transmission shaft has screw thread, transmit that part is arranged on one end of transmission shaft and the two is threaded, the end of transmitting part is provided with pressure transducer, on the lower surface of the mobile weighted platform between pressure transducer and coupling assembling, be connected with a rebound, the induction end of pressure transducer is pointed to rebound.
The invention has the beneficial effects as follows: the present invention is simple in structure, reasonable in design, apparatus of the present invention rotarily drive cylinder by the spanner on jig and rotate, can realize the horizontal reciprocating movement of portable plate, and then drive and withstand tangential movement, thereby to realize the leaning of test specimen, the set-up time of test specimen shortens, installation speed improves, and the 20 minutes time that the set-up time is compared existing loading system has shortened 50%～80%; Device of the present invention is by the mode of motion of slide plate and slide rail, when test specimen performance test loads, mobile weighted platform has moved stretching, jig plays fixation, stable and reliable operation, running resistance is compared existing resistance 10～15 newton and has been reduced to 3～5 newton, and rate of extension control is accurate, improved greatly the precision of gap-grouting material cold performance test, the precision 5%～10% of comparing the rate of extension of existing loading system has improved 30%～50%; Utilize charger of the present invention to carry out load test and can allow at most three groups of parallel experiments, test efficiency is high; Test specimen is easy to loading and unloading, quick, avoids the generation of disturbance; When use, in oil groove, install subzero oil additional, effectively avoided the corrosion of the parts that support sliding unit and gear unit, and frictional resistance when the operation of minimizing equipment; Utilize charger of the present invention, by temperature conditioning unit and data acquisition unit, strain, displacement acquisition to gap-grouting material are accurate, disturb less, and stretching mode are saved the energy, noiselessness.
Brief description of the drawings
Fig. 1 is main TV structure schematic diagram of the present invention, and Fig. 2 is the right TV structure schematic diagram of Fig. 1, and Fig. 3 is the left TV structure schematic diagram of Fig. 1, and Fig. 4 is the plan structure schematic diagram of Fig. 1.
Embodiment
Embodiment one: in conjunction with Fig. 1～Fig. 4, present embodiment is described, a kind of charger for low-temperature performance of road gap-grouting material test of present embodiment comprises oil groove 1, loading plate 2, gear unit, support sliding unit and loading unit;
Described gear unit comprises motor 3, reductor 4, the first conical gear 5, the second conical gear 6, transmission shaft 7, fixed mount 8 and transmits part 9;
Support sliding unit and comprise slide rail 10, slide plate 11, coupling assembling 12 and rebound 13;
Loading unit comprises pressure transducer 16, mobile weighted platform 14, fixing weighted platform 19 and two cover jigs 15;
Fixed mount 8 is arranged on the loading plate 2 on the bottom face that is arranged on oil groove 1, slide rail 10 is installed on loading plate 2, slide plate 11 is arranged on slide rail 10 and slide plate 11 can slide on slide rail 10, mobile weighted platform 14 is for one end of test specimen 18 is installed, and fixing weighted platform 19 is for installing the other end of test specimen 18;
Fixing weighted platform 19 is connected with fixed mount 8, mobile weighted platform 14 is connected with slide plate 11 by coupling assembling 12, on each on fixing weighted platform 19 and mobile weighted platform 14, a set of jig 15 is installed, two cover jigs 15 are just to arranging, every cover jig 15 comprises portable plate 15-1, fixed head 15-2, spanner 15-3, cylinder 15-4, four volute spring 15-5 and four fore-set 15-6, portable plate 15-1 and fixed head 15-2 in every cover jig 15 are set up in parallel, between portable plate 15-1 and fixed head 15-2, be equipped with four fore-set 15-6, four are withstood 15-6 and are fixedly connected with portable plate 15-1, four fore-set 15-6 can slide on fixed head 15-2, adjacent one end of the test specimen with on mobile weighted platform 14 of each fore-set 15-6 is provided with protruding 15-7, adjacent one end of the test specimen with on fixing weighted platform 19 of each fore-set 15-6 is provided with protruding 15-7, on the fore-set 15-6 between protruding 15-7 and admittedly moving plate 15-2, be arranged with a volute spring 15-5, one end of spanner 15-3 is rotationally connected with the mobile weighted platform 14 being connected with slide plate 11, between fixed head 15-2 and portable plate 15-1, be provided with the cylinder 15-4 being connected with spanner 15-3, the rotation of spanner 15-3 can drive cylinder 15-4 rotation, the rotation of cylinder 15-4 can drive portable plate 15-1 horizontal reciprocating to move,
The output shaft of motor 3 vertically arranges, the output terminal of motor 3 is connected with the input end of reductor 4, the output terminal of reductor 4 is provided with the first conical gear 5, the second conical gear 6 is arranged on transmission shaft 7, the first conical gear 5 engages with the second conical gear 6, transmission shaft 7 is rotationally connected with fixed mount 8, one end of transmission shaft 7 has screw thread, transmit that part 9 is arranged on one end of transmission shaft 7 and the two is threaded, the end of transmitting part 9 is provided with pressure transducer 16, on the lower surface of the mobile weighted platform 14 between pressure transducer 16 and coupling assembling 12, be connected with a rebound 13, the induction end of pressure transducer 16 is pointed to rebound 13.
Present embodiment in use, can add subzero oil in oil groove, to ensure that the parts in oil groove do not produce corrosion.When the device of this enforcement is tested for low-temperature performance of road gap-grouting material, can once select three groups of devices to carry out parallel experiment.
Embodiment two: present embodiment is described in conjunction with Fig. 1, described in present embodiment, coupling assembling 12 comprises two web joint 12-1, two web joint 12-1 are all L-shaped, the horizontal segment of one of them web joint 12-1 and slide plate 11 removably connect, the vertical section of the vertical section of one of them web joint 12-1 and another web joint 12-1 removably connects, and the horizontal segment of another web joint 12-1 and corresponding mobile weighted platform 14 removably connect.So arrange, connection is convenient, meets the design requirements and the actual needs.Other is identical with embodiment one.
Embodiment three: present embodiment is described in conjunction with Fig. 1, described in present embodiment, device also comprises bumping post 17, bumping post 17 vertically arranges, and bumping post 17 is arranged on the lower surface of the platform 14 being connected with slide plate 11, transmits part 9 between rebound 13 and bumping post 17.So arrange, be convenient to stop transmission part rollback.Other is identical with embodiment one.
Embodiment four: in conjunction with Fig. 1, present embodiment is described, the cylinder 15-4 described in present embodiment is bearing.So arrange, easy to use and reliable, meet actual needs.Other is identical with embodiment one, two or three.
Embodiment five: present embodiment is described in conjunction with Fig. 1, horizontal segment and the slide plate 11 of one of them web joint 12-1 of present embodiment removably connect by bolt, the vertical section of the vertical section of one of them web joint 12-1 and another web joint 12-1 removably connects by bolt, and the horizontal segment of another web joint 12-1 and corresponding mobile weighted platform 14 removably connect by bolt.So arrange, connection is convenient, meets the design requirements and the actual needs.Other is identical with embodiment two.
The course of work
In conjunction with Fig. 1～Fig. 4, the present invention is described, the present invention can, by the use interface control that programs, realize speed control by controlling the servomotor geneva motion time.Bonding apparatus schematic diagram, utilizes coupling assembling to pass through the fixing composition of bolt, in oil groove bottom, loading plate is installed, and slide rail is anchored on loading plate with screw, and slide block can be along slide rail free movement.In equipment running process, servomotor passes through speed reduction unit adjusting rotary speed, and rotation is reached to rotation axis through the first conical gear and the second conical gear, is fixed with the weighted platform of having laid strain gauge at the other end of transmission shaft.In test, the driving-belt dynamic stress sensor of transmission shaft promotes to add platform motion, and gathers stress signal, the slide plate that is embedded in slide rail is arranged at mobile weighted platform bottom, can ensure that weighted platform is under the effect of transmission shaft, along the free movement of slide rail direction, to complete gap-grouting material stretch function.
In process of the test, (one end of displacement transducer is fixed on mobile weighted platform the sensor of arranging on equipment, the other end is fixed on static loading bench, in process of the test, along with mobile weighted platform motion, displacement transducer is also stretched, record output displacement signal), meeting Real-time Collection test parameters, and the parameter signal of collection is transferred on the computing machine being connected with equipment, by process analysis, computing machine can automatically be drawn stress-strain curves on programmed control interface, and show Current Temperatures and humidity situation, can setting sensor frequency acquisition when Preparatory work of experiment, this can exert an influence to accuracy of data acquisition and final data amount.When test, can, according to different sample dimensions, select different starting points, equipment is provided with the zero clearing program of stress and displacement, can warranty test be subject to the impact of reference position and equipment resistance.In cryogenic box, be equipped with three groups of cryogenic tensile instrument, can realize the parallel experiment of test specimen.Three groups of cryogenic tensile instrument can work alone respectively, and every group of cryogenic tensile instrument is all furnished with temperature sensor and humidity sensor.
Described temperature control box matter is shaped as long cube, has a glass window on it, can see temperature-controlled box inner case, and concrete size and 3-D effect are shown in floor plan design.In order to realize the integral installation of temperature control and analyzer entity, temperature control box one side adopts drawing and pulling type opening, and adopts effective encapsulation process, and sealing effectiveness is good.Between separate panels and casing, closely link together.Meanwhile, temperature control box has the circular hole of diameter 8cm in a side, can facilitate each sensor transmissions line to drain into control box, and temperature control box rear side is temperature control facility.
Illustrate use procedure below in conjunction with control,
1, according to test condition, select corresponding fixture and set required test size stand-by by design size assembling, and gap-grouting material is heated to manufacturer's recommended temperature keeps 1 hour, to free-flowing; 2, flow state gap-grouting material is evenly poured into progressive die tool groove, and avoid the generation of bubble as far as possible, leave standstill 15 minutes, after gap-grouting material is cooling, use the hot scraper demoulding; 3, the gap-grouting material preparing is placed in temperature control box and is incubated, after reaching design temperature, leave standstill more than 2 hours, make test specimen internal temperature and ambient temperature equilibrium; 4, the test parameterss such as frequency acquisition, rate of extension, maximum tension distance are set, and adjust test initial position, after everything is ready, click operation button and start test; 5, in the time that gap-grouting material material destruction occurs or test stretching to reach setpoint distance, stop test.
Claims (5)
1. for a charger for low-temperature performance of road gap-grouting material test, it is characterized in that: described charger comprises oil groove (1), loading plate (2), gear unit, support sliding unit and loading unit;
Described gear unit comprises motor (3), reductor (4), the first conical gear (5), the second conical gear (6), transmission shaft (7), fixed mount (8) and transmits part (9);
Support sliding unit and comprise slide rail (10), slide plate (11), coupling assembling (12) and rebound (13);
Loading unit comprises pressure transducer (16), mobile weighted platform (14), fixing weighted platform (19) and two cover jigs (15);
Fixed mount (8) is arranged on the loading plate (2) on the bottom face that is arranged on oil groove (1), slide rail (10) is installed on loading plate (2), slide plate (11) is arranged on slide rail (10) above and slide plate (11) can be in the upper slip of slide rail (10), mobile weighted platform (14) is for one end of test specimen (18) is installed, and fixing weighted platform (19) is for installing the other end of test specimen (18);
Fixing weighted platform (19) is connected with fixed mount (8), mobile weighted platform (14) is connected with slide plate (11) by coupling assembling (12), fixing weighted platform (19) and mobile weighted platform (14) Shang Geshang are provided with a set of jig (15), two cover jigs (15) are just to arranging, every cover jig (15) comprises portable plate (15-1), fixed head (15-2), spanner (15-3), cylinder (15-4), four volute springs (15-5) and four fore-sets (15-6), portable plate (15-1) and fixed head (15-2) in every cover jig (15) are set up in parallel, between portable plate (15-1) and fixed head (15-2), be equipped with four fore-sets (15-6), four are withstood (15-6) and are fixedly connected with portable plate (15-1), four fore-sets (15-6) can be in the upper slip of fixed head (15-2), adjacent one end of the test specimen with on mobile weighted platform (14) of each fore-set (15-6) is provided with projection (15-7), adjacent one end of the test specimen with on fixing weighted platform (19) of each fore-set (15-6) is provided with projection (15-7), be positioned on the fore-set (15-6) between projection (15-7) and admittedly moving plate (15-2) and be arranged with a volute spring (15-5), one end of spanner (15-3) is rotationally connected with the mobile weighted platform (14) being connected with slide plate (11), between fixed head (15-2) and portable plate (15-1), be provided with the cylinder (15-4) being connected with spanner (15-3), the rotation of spanner (15-3) can drive cylinder (15-4) rotation, the rotation of cylinder (15-4) can drive portable plate (15-1) horizontal reciprocating to move,
The output shaft of motor (3) vertically arranges, the output terminal of motor (3) is connected with the input end of reductor (4), the output terminal of reductor (4) is provided with the first conical gear (5), the second conical gear (6) is arranged on transmission shaft (7), the first conical gear (5) engages with the second conical gear (6), transmission shaft (7) is rotationally connected with fixed mount (8), one end of transmission shaft (7) has screw thread, transmit that part (9) is arranged on one end of transmission shaft (7) and the two is threaded, the end of transmitting part (9) is provided with pressure transducer (16), be positioned on the lower surface of the mobile weighted platform (14) between pressure transducer (16) and coupling assembling (12) and be connected with a rebound (13), the induction end of pressure transducer (16) is pointed to rebound (13).
2. a kind of charger for low-temperature performance of road gap-grouting material test according to claim 1, it is characterized in that: described coupling assembling (12) comprises two web joints (12-1), two web joints (12-1) are all L-shaped, the horizontal segment of one of them web joint (12-1) and slide plate (11) removably connect, the vertical section of the vertical section of one of them web joint (12-1) and another web joint (12-1) removably connects, the horizontal segment of another web joint (12-1) and corresponding mobile weighted platform (14) removably connect.
3. a kind of charger for low-temperature performance of road gap-grouting material test according to claim 1, it is characterized in that: described device also comprises bumping post (17), bumping post (17) vertically arranges, bumping post (17) is arranged on the lower surface of mobile weighted platform (14), transmits part (9) and is positioned between rebound (13) and bumping post (17).
4. according to a kind of charger for low-temperature performance of road gap-grouting material test described in claim 1,2 or 3, it is characterized in that: described cylinder (15-4) is bearing.
5. a kind of charger for low-temperature performance of road gap-grouting material test according to claim 2, it is characterized in that: the horizontal segment of one of them web joint (12-1) and slide plate (11) removably connect by bolt, the vertical section of the vertical section of one of them web joint (12-1) and another web joint (12-1) removably connects by bolt, and the horizontal segment of another web joint (12-1) and corresponding mobile weighted platform (14) removably connect by bolt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310133624.6A CN103234834B (en) | 2013-04-17 | 2013-04-17 | Loading device used in road seam filling material low-temperature performance test |
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| CN201310133624.6A CN103234834B (en) | 2013-04-17 | 2013-04-17 | Loading device used in road seam filling material low-temperature performance test |
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| CN103234834A CN103234834A (en) | 2013-08-07 |
| CN103234834B true CN103234834B (en) | 2014-12-10 |
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| CN105241755B (en) * | 2015-10-20 | 2017-12-05 | 交通运输部公路科学研究所 | A kind of road traffic marking material splitting resistance tester and its application method |
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| CN108458926B (en) * | 2018-01-30 | 2021-01-05 | 东南大学 | Thermal rigid single-shaft loading device |
| CN109632479A (en) * | 2018-12-14 | 2019-04-16 | 华北水利水电大学 | A kind of true triaxial dynamic pressure testing machine and test method |
| CN113529707A (en) * | 2021-08-10 | 2021-10-22 | 哈尔滨工业大学 | Umbrella-shaped light anchor rod, slope supporting structure and construction method thereof |
| CN116773372B (en) * | 2023-08-24 | 2023-10-31 | 中国海洋大学 | Transmission mechanism performance detection device and method of conveying device |
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