CN217237681U - Asphalt pressure aging tester - Google Patents

Abstract

The utility model relates to an asphalt pressure aging tester in asphalt performance test instrument field, it includes a pressure vessel, and pressure vessel includes overhead tank and the plate rail that is used for holding the pitch sample, the plate rail sets up in the overhead tank, and the overhead tank top is provided with the opening, is provided with a plurality of elastic components in the overhead tank, and the elastic component plays the cushioning effect when the plate rail falls to being close to the overhead tank diapire from the overhead tank open end. This application has the effect that reduces the disk rack and places in-process pitch sample and easily deviate from the disk rack risk.

Description

Asphalt pressure aging tester

Technical Field

The application relates to the field of asphalt performance testing instruments, in particular to an asphalt pressure aging tester.

Background

Asphalt pavement refers to various types of pavement that have been made with asphalt material infiltrated into the mineral material. Asphalt binder improves the ability of the pavement to resist driving and damage from natural factors to the pavement, and is a widely used high-grade pavement because of its durability.

However, the asphalt surface layer is easily damaged under the continuous pressure action of the traffic load, and the main reason is that the asphalt is aged along with time, and under the action of factors such as reduced cohesive force, the asphalt pavement is often cracked, pot holes, structural layer damage and the like before the design standard service life.

Therefore, the performance of asphalt becomes an important index for road engineering procurement. In order to simulate the change of the performance of the asphalt after aging in the service process, an asphalt pressure aging tester is often used for asphalt aging tests.

At present, the conventional asphalt aging instrument places an asphalt sample in a tray frame and then puts the asphalt sample in a pressure container, selects the temperature of the aging container and starts a heater, and when the temperature reaches the aging temperature, the pressure container is quickly opened for pressure aging.

In view of the above-mentioned related art, since the pressure vessel has a certain height, when the bottom of the tray rack falls into the bottom of the pressure vessel, the bottom of the pressure vessel is easily hit, and the tray rack is accordingly vibrated, the inventor believes that there is a defect that the asphalt sample is easily separated from the tray rack during the tray rack placing process.

SUMMERY OF THE UTILITY MODEL

In order to reduce the risk that the coil frame is easily deviate from to pitch sample among the coil frame placing process, this application provides an pitch pressure aging tester.

The application provides a pitch pressure aging tester adopts following technical scheme:

the utility model provides an asphalt pressure aging tester, includes a pressure vessel, and pressure vessel includes pressure tank and the plate rail that is used for holding the pitch sample, and the plate rail sets up in the pressure tank, and the pressure tank top is provided with the opening, is provided with a plurality of elastic components in the pressure tank, and the elastic component plays the cushioning effect when the plate rail falls to being close to the pressure tank diapire from the pressure tank open end.

Through adopting above-mentioned technical scheme, the staff can place the pitch sample on the plate rail, puts into the overhead tank with the plate rail again, and when the plate rail whereabouts to being close to the overhead tank diapire, plate rail bottom surface extrusion elastic component takes place deformation, has reduced plate rail bottom and overhead tank bottom wall and has taken place the striking, leads to the pitch sample to follow the risk that the plate rail deviates from.

Preferably, the elastic member is a spring.

By adopting the technical scheme, the elastic sheet has a simple structure and lighter weight, the overall weight of the tester is reduced, and the portability of the tester is improved; the elastic sheet has low cost, is convenient for workers to replace, and prolongs the service life of the tester.

Preferably, a plurality of chutes are symmetrically formed in the inner wall of the pressure tank, a plurality of casing sleeves matched with the chutes are convexly arranged on the tray frame, and the elastic piece is arranged on the bottom wall of the chutes.

Through adopting above-mentioned technical scheme, the staff can aim at spout upper end port with the cover shell, puts into the overhead tank along the spout track with the plate rail, has reduced the risk that the plate rail circumference rocked, and then has reduced the risk that the pitch sample is deviate from the plate rail.

Preferably, the slide groove and the jacket are provided in two.

Through adopting above-mentioned technical scheme, under the prerequisite that satisfies spacing plate rail sliding track, two spouts and two cover shells have reduced the spout and have aimed at the man-hour that the in-process consumeed with the cover shell, and then have practiced thrift the man-hour that ageing tests consumeed, have improved ageing tests efficiency.

Preferably, a threaded hole is formed in the inner wall of the upper end of the sliding groove, a spring plunger is arranged in the threaded hole, the upper end face of the casing is in a circular arc shape in point contact with the spring plunger, and when the plate frame is attached to the bottom wall of the pressure tank, the spring plunger is clamped above the casing.

By adopting the technical scheme, when a worker aligns the sleeve shell with the sliding chute, the sleeve shell extrudes the spring plunger so that the spring plunger is contracted in the threaded hole; when the sleeve shell extrudes the spring part to deform, the sleeve shell is positioned below the spring plunger, the spring plunger recovers the relaxation state and is ejected out of the threaded hole and clamped above the sleeve shell, the risk of the tray frame shaking up and down is reduced, and the risk of the asphalt sample falling off from the tray frame is further reduced; after the aging test, the staff upwards carries the pulling plate frame, and the circular-arc up end of cover shell is the point contact with spring plunger for the cover shell can extrude spring plunger and contract in the screwed hole, and the staff of being convenient for pulls out the plate frame.

Preferably, when the casing on the tray slides to the bottom of the sliding groove, the bottom of the tray abuts against the bottom of the pressure tank.

Through adopting above-mentioned technical scheme, when the cover shell card was established under spring plunger, the bottom of plate rail leaned on in the pressure tank bottom, had increased the bearing area of plate rail, had improved the stability of placing of plate rail, and then had reduced the risk that the pitch sample deviate from the plate rail.

Preferably, the casing is provided with stand columns, two stand columns are provided with a plurality of discs in parallel, and the discs are provided with grooves for placing asphalt samples.

Through adopting above-mentioned technical scheme, the pitch sample is placed in the recess, has increased the limiting displacement to the pitch sample, has improved the stability of placing of pitch sample, and then has reduced the risk that the pitch sample deviate from the plate rail.

Preferably, one end of the disc is hinged to the upright column on one side, a hook is arranged at one end, away from the hinged part, of the disc in a protruding mode, the hook is made of elastic materials, and when the hook is attached to the upright column on one side, away from the hinged part of the disc, the hook is clamped on the upright column on the side.

By adopting the technical scheme, the disc can rotate around the upright column on one side, so that workers can place and take asphalt samples conveniently; the other end of the disc can be clamped and fixed on the stand column on the other side, so that the stability of the disc placement is improved, and the risk of the asphalt sample falling off from the disc rack is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. reduced plate rail bottom and pressure tank bottom wall and taken place the striking, leaded to the pitch sample to deviate from the risk on the plate rail, the staff can place the pitch sample on the plate rail, puts into the pressure tank with the plate rail again, when the plate rail falls to being close to the pressure tank diapire, plate rail bottom surface extrusion elastic component takes place to deform.

2. The risk of circumferential shaking of the tray frame is reduced, the risk of the asphalt sample falling off from the tray frame is further reduced, a worker can align the casing to the port at the upper end of the sliding groove, the tray frame is placed into the pressure tank along the sliding groove rail, and the sliding track of the tray frame is limited;

3. the risk that the plate rack rocked up and down is reduced, the risk that the asphalt sample is separated from the plate rack is reduced, the sleeve shell is located below the spring plunger after the sleeve shell extrudes the spring part to deform, the spring plunger recovers the diastolic state and pops out from the threaded hole, and the sleeve shell is clamped above the sleeve shell.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the asphalt pressure aging tester of the present application;

FIG. 2 is a partial sectional view of the structure embodying the interior of the pressure vessel;

FIG. 3 is a partial cross-sectional view showing the mating relationship between the pressure canister and the tray;

FIG. 4 is an enlarged schematic view of detail A of FIG. 3;

FIG. 5 is an enlarged schematic view of detail B of FIG. 3;

FIG. 6 is a partial sectional view of a structure embodying a temperature control apparatus;

fig. 7 is an enlarged schematic view of detail C in fig. 6.

Description of reference numerals: 1. a test chamber; 11. a box body; 12. a box cover; 2. a pressure vessel; 21. a tank body; 211. a heat-insulating layer; 212. a snap ring; 22. a cover body; 221. a handle; 222. buckling; 23. a pressure tank; 231. a pressure chamber; 232. a chute; 2321. a spring plate; 2322. a spring plunger; 24. a tray frame; 241. a top tray; 2411. a handle; 242. a chassis; 243. a column; 2431. a housing; 244. a disc; 2441. a groove; 2442. hooking; 3. a temperature control device; 31. heating the tape; 32. a temperature sensor; 4. a pressure control device; 5. a control circuit board; 6. and (6) a working screen.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Referring to fig. 1 and 2, the asphalt pressure aging tester disclosed by the invention comprises a test chamber 1, a pressure vessel 2 arranged in the test chamber 1 and used for placing an asphalt sample, a temperature control device 3 and a pressure control device 4.

Referring to fig. 2, the test chamber 1 includes a chamber body 11 with an opening at the upper end and a chamber cover 12 hinged at the opening of the chamber body 11, the pressure container 2 is arranged in the cavity of the chamber body 11, and the bottom end of the pressure container 2 is fixedly connected to the bottom wall of the chamber body 11; the pressure container 2 comprises a tank body 21 with one end being opened and a cover body 22 hinged to the open end of the tank body 21, a lifting handle 221 is arranged on the cover body 22, and a worker can open the cover body 22 by holding the lifting handle 221; the inner wall of the tank body 21 is provided with the heat preservation layer 211, and when the temperature in the pressure container 2 rises, the heat preservation layer 211 can improve the heat preservation effect of the pressure container and prolong the high-temperature maintenance time; a cylindrical pressure tank 23 is arranged in the space surrounded by the heat-insulating layer 211, a pressure cavity 231 is arranged in the pressure tank 23, a tray frame 24 is arranged in the pressure cavity 231, and the tray frame 24 is detachably connected with the pressure tank 23.

Referring to fig. 3, the tray 24 includes a top tray 241 and a bottom tray 242 arranged in parallel, two columns 243 vertically arranged between the top tray 241 and the bottom tray 242, and a plurality of circular discs 244 arranged in parallel at intervals between the top tray 241 and the bottom tray 242; the upper end and the lower end of the upright 243 are respectively fixedly connected with the lower end surface of the top disc 241 and the upper end surface of the bottom disc 242; the upright 243 is cylindrical, one end of the disc 244 is hinged to the upright 243 on one side, so that the disc 244 rotates by taking the upright 243 on the side as an axis, one side of the disc 244, which is opposite to the hinged position, is rotatably connected with an arc-shaped hook 2442, the hook 2442 is made of elastic materials, when the disc 244 rotates until the hook 2442 abuts against the upright 243 on the other side, a worker can pull the hook 2442 to deform the hook 2442, then hook the hook 2442 on the upright 243, and fix the disc on the upright 243, so that the risk that an asphalt sample slides out of the disc 244 due to shaking of the disc holder 24 is reduced.

Referring to fig. 3, a groove 2441 for placing the asphalt sample is arranged on the disc 244, and when the asphalt sample is placed in the groove 2441, the inner wall of the groove 2441 has a limiting effect on the asphalt sample, so that the placing stability of the asphalt sample is improved, and the risk that the asphalt sample is easily separated from the tray 24 in the placing process of the tray 24 is reduced.

Referring to fig. 3 and 4, a sleeve 2431 is disposed on the upright 243, two ends of the sleeve 2431 are connected to the upright 243, and the portion of the sleeve 2431 protruding out of the space between the top plate 241 and the bottom plate 242 forms an elongated slider parallel to the upright 243 along the length direction of the upright 243; above-mentioned pressure tank 23 has respectively seted up a spout 232 on two cover 2431 of disk rack 24 correspond the position, spout 232 sets up along pressure tank 23 length direction, the rectangular form slider looks adaptation that spout 232 and cover 2431 formed, the staff can aim at two pillars 2431 and put into spout 232, make disk rack 24 can move down under the limiting displacement of spout 232, the risk that disk rack 24 circumference rocked has been reduced, be convenient for the staff take out disk rack 24 and put into pressure tank 23 in, the risk that leads to pitch sample roll-off recess 2441 because of disk rack 24 rocks has been reduced.

Referring to fig. 3 and 4, be provided with the shell fragment 2321 on the bottom wall of spout 232, the staff aims at the spout with cover 2431 and puts into plate rail 24, and when plate rail 24 bottom wall was close to on the overhead tank bottom wall, shell fragment 2321 atress deformation provides the buffering for plate rail 24's placing, has reduced plate rail 24 and has produced because of the action of gravity striking overhead tank 23 bottom wall and rock, and then leads to the risk of pitch sample roll-off disc 244.

Referring to fig. 3 and 5, a threaded hole is formed in the inner wall of the upper end of the sliding groove 232, a spring plunger 2322 is connected to the threaded hole in a threaded manner, when the spring plunger 2322 is in a compressed state, the spring plunger 2322 is received in the threaded hole, the upper end face of the housing 2431 is in an arc shape matched with the lower end face of the spring plunger 2322, and when a worker aligns the housing 2431 with the sliding groove 232 to slide, the spring plunger 2312 is compressed into the threaded hole under the extrusion of the housing 2431; when the chassis 242 is attached to the bottom wall of the pressure tank 23, the lower end surface of the casing 2431 presses the elastic sheet 2322, and at the moment, the spring plunger 2322 is ejected out of the threaded hole and clamped on the upper end surface of the casing 2431, so that the casing 2431 is limited from shaking up and down in the sliding groove, and the risk that the asphalt sample slides out of the disc 244 due to shaking of the tray frame 24 is reduced; when the aging test is completed, the worker needs to take the tray 24 out of the pressure tank 23, and when the tray 24 is pulled upward, the arc-shaped upper end surface of the housing 2431 presses the arc-shaped lower end surface of the spring plunger 2322 and compresses the spring plunger 2322 into the threaded hole until the housing 2431 slides out of the pressure tank 23 from the chute 232.

Referring to fig. 3, a handle 2411 is arranged on the top plate 241 of the tray 24, so that workers can conveniently lift and put the tray 24, the risk that the asphalt sample is separated from the groove 2441 due to shaking of the tray 24 is reduced, and the test accuracy of the asphalt pressure aging tester is improved.

Referring to fig. 1 and 6, the temperature control device 3 includes a heating belt 31 enclosed between the insulating layer 22 and the pressure tank 23 and a temperature sensor 32 fixedly connected to the inner wall of the pressure tank 23, a control circuit board 5 is disposed on the side wall of the tank body 11 of the pressure container 2, and the control circuit board 5 is connected with a power supply; one side of the box body 11, which is far away from the control circuit board 5, is provided with a working screen 6 which is convenient for a worker to operate so as to perform aging test on an asphalt sample in the pressure container 2, the working screen 6, the heating belt 31, the temperature sensor 32 and the control circuit board 5 are in circuit connection, when the worker sets a target temperature on the working screen 6, the heating belt 31 starts to heat, the control circuit board 5 automatically cuts off the heating belt 31 to heat after the temperature sensor 32 detects that the temperature reaches the target temperature, and the temperature in the pressure tank 23 can be maintained to be constant under the action of the temperature sensor 32 and the control circuit board 5.

Referring to fig. 6, the pressure control device 4 is disposed in the box body 11, and the pressure control device 4 is fixedly connected to the bottom wall of the box body 11; pressure control device 4 and overhead tank 23 set up to the intercommunication, and pressure control device 4 and circuit control board, the 6 circuit intercommunications of work screen, but the staff temperature reaches ageing temperature after, operates work screen 6 rapidly, control pressure control device 4 supplies air pressure to in the overhead tank 23 for the pitch sample ages under high pressure high temperature state.

Referring to fig. 6 and 7, a plurality of buckles 222 are arranged on the cover 22 of the pressure vessel 2, a plurality of snap rings 212 matched with the buckles 222 are arranged on the outer wall of the tank body 21 of the pressure vessel 2, the buckles 222 are made of elastic materials, and a convex edge is arranged at the edge of the opening end of each buckle 222, so that a worker can break the convex edge to deform the buckles 222, the snap rings 212 can enter the buckles 222 from the opening end conveniently, the pressure vessel 2 is sealed, the tightness of the pressure vessel 2 is improved, and the test accuracy of the asphalt pressure aging tester is improved.

The implementation principle of the asphalt pressure aging tester in the embodiment of the application is as follows: the worker puts the asphalt sample into the groove 2441 of the disc 244 on the tray 24, rotates the disc 244 until the hook 2442 is clamped on the upright 243, and then pulls the handle 221 on the cover body 22 of the pressure container 2 to open the pressure container 2, so that the worker puts the tray 24 containing the asphalt sample into the pressure tank 23 of the pressure container 2 until the spring plunger 2322 clamps the tray 24 at the bottom of the pressure container 2; then, the worker covers the cover 22 of the pressure vessel 2, and buckles the buckle 222 on the cover 22 into the snap ring 212 on the tank 21, so as to seal the pressure vessel 2; and operating the working screen 6 by the staff to heat and pressurize the pressure vessel 2 so as to carry out the asphalt aging test.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an asphalt pressure aging tester which characterized in that: the asphalt sample storage device is characterized by comprising a pressure container (2), wherein the pressure container (2) comprises a pressure tank (23) and a tray frame (24) used for containing asphalt samples, the tray frame (24) is arranged in the pressure tank (23), an opening is formed in the upper portion of the pressure tank (23), a plurality of elastic pieces are arranged in the pressure tank (23), and the elastic pieces play a role in buffering when the tray frame (24) falls from the opening end of the pressure tank (23) to be close to the bottom wall of the pressure tank (23).

2. The asphalt pressure aging tester according to claim 1, characterized in that: the elastic piece is arranged as a spring plate (2321).

3. The asphalt pressure aging tester according to claim 1, characterized in that: a plurality of sliding grooves (232) are symmetrically formed in the inner wall of the pressure tank (23), a plurality of shell cases (2431) matched with the sliding grooves (232) are arranged on the plate frame (24) in a protruding mode, and the elastic piece is arranged on the bottom wall of the sliding grooves (232).

4. The asphalt pressure aging tester according to claim 3, characterized in that: the sliding groove (232) and the sleeve (2431) are arranged in two.

5. The asphalt pressure aging tester according to claim 3, characterized in that: the inner wall of the upper end of the sliding groove (232) is provided with a threaded hole, a spring plunger (2322) is arranged in the threaded hole, the upper end face of the casing (2431) is in an arc shape in point contact with the spring plunger (2322), and when the disc frame (24) is attached to the bottom wall of the pressure tank (23), the spring plunger (2322) is clamped above the casing (2431).

6. The asphalt pressure aging tester according to claim 5, wherein: when the shell (2431) on the tray frame (24) slides to the bottom of the sliding groove (232), the bottom of the tray frame (24) is abutted against the bottom of the pressure tank (23).

7. The asphalt pressure aging tester according to claim 3, characterized in that: be provided with stand (243) on cover shell (2431), two parallel arrangement has a plurality of discs (244) on stand (243), be provided with recess (2441) that are used for placing the pitch sample on disc (244).

8. The asphalt pressure aging tester according to claim 7, characterized in that: one end of the disc (244) is hinged to the upright post (243) on one side, one end, far away from the hinged part, of the disc (244) is provided with a hook (2442) in a protruding mode, the hook (2442) is made of elastic materials, and when the hook (2442) abuts against the upright post (243) on one side, far away from the hinged part of the disc (244), the hook (2442) is clamped on the upright post (243) on the side.

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