CN212780315U

CN212780315U - Asphalt mixture bending test device

Info

Publication number: CN212780315U
Application number: CN202021295230.2U
Authority: CN
Inventors: 钱立文
Original assignee: Chuzhou Gaoren Construction Engineering Co ltd
Current assignee: Chuzhou Gaoren Construction Engineering Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-23
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses an asphalt mixture bending test device, including the board, be equipped with the frame on the board, the frame inside bottom is connected with the regulation pole through first pneumatic cylinder, and the support column has been cup jointed in the slip on the regulation pole, and the frame inside bilateral symmetry is equipped with the support clamp splice, and the regulation pole top is equipped with the pressure head; the utility model discloses earlier rotate through the first screw rod of carousel drive, make first screw rod area support the clamp splice and remove, thereby be convenient for carry out the centre gripping to the bituminous mixture test piece of different dimensions specification fixed, make the device can test and be convenient for carry out the comprehensive evaluation to the bending property of different dimensions test piece to the test piece of not unidimensional, the support column that rethread first pneumatic cylinder drive symmetry set up and adjustable rises and carries out two point supports to the test piece bottom, adjust the suitable position of test piece top and exert pressure to the test piece through second pneumatic cylinder drive head through the motor drive pressure head after that, make the device be convenient for carry out the crookedness to the different positions of test piece and measure.

Description

Asphalt mixture bending test device

Technical Field

The utility model relates to a pitch production test equipment technical field especially relates to a bituminous mixture bending test device.

Background

The asphalt mixture is a mixture which is prepared by mixing mineral aggregates with different particle sizes, mineral powder and reclaimed materials under the strict control condition according to the optimal grading principle and uniformly stirring the mixture with a proper asphalt material, and the mixture is called the asphalt mixture, so that the pavement is often damaged by pits, surface loosening and the like in the daily maintenance of a highway, a large amount of asphalt mixture is required to be used, the asphalt mixture has excellent initial strength and water stability, the problems of pits, loosening and the like on the pavement can be effectively and quickly repaired, the potential safety hazard is eliminated, the smoothness of the pavement is ensured, and the mechanical property test detection of bending damage of the molded asphalt mixture is required to ensure the service performance and the quality of the asphalt mixture;

at present, adopt the loaded mode of three-point bending to survey the crooked broken mechanical properties of bituminous mixture, and present bending test device is mostly single structure, can not carry out the centre gripping to the bituminous mixture test piece of unidimensional when experimental and load, the test piece specification that leads to experimental is single, make the bending property who is difficult to the not unidimensional test piece of comprehensive evaluation, the practicality is not high, and current bending test device can not make the regulation to the position of loading point, lead to can not carrying out the bending property survey to the different positions of test piece, make test data single, do not possess representativeness, therefore, the utility model provides a bituminous mixture bending test device is used for solving the problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model aims to provide an asphalt mixture bending test device, this asphalt mixture bending test device supports the clamp splice through carousel drive earlier and carries out the centre gripping to the asphalt mixture test piece fixed, support column with adjustable the setting of rethread first pneumatic cylinder drive symmetry carries out two point supports to the test piece bottom, adjust the suitable position of test piece top and exert pressure to the test piece through second pneumatic cylinder drive contact through the motor drive pressure head after that, make the device can test and be convenient for carry out the crookedness to the different positions of test piece to the test piece of different size specifications and measure, measure the crooked distance of test piece through distance sensor at last, thereby accomplish the crookedness test measurement of test piece.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme realizes: an asphalt mixture bending test device comprises a machine table, wherein a machine frame is arranged on the machine table, a first hydraulic cylinder is fixed at the bottom end inside the machine frame, an adjusting rod is fixed at the top end of the first hydraulic cylinder, two sides of the bottom end of the adjusting rod are fixed at the bottom end inside the machine frame through spring rods, adjusting sleeves are sleeved on two sides of the adjusting rod in a sliding manner, a supporting column is fixed at the top end of each adjusting sleeve, a first screw driven by a turntable penetrates through two sides of the machine frame, a supporting clamping block is fixed at one end of the first screw in the machine frame, a limiting rod in sliding connection with the machine frame is fixed at one side, close to the turntable, of the supporting clamping block, a second screw driven by a motor is arranged above the inside of the machine frame, a threaded sleeve in sliding connection with the machine frame is sleeved on the second screw, a second hydraulic cylinder is arranged at the bottom end of the threaded sleeve, a pressure head is fixed at the bottom end, and a distance sensor which is slidably arranged on the adjusting rod is arranged right below the pressure head.

The further improvement lies in that: the threaded bush top is fixed with the slider, the spout that matches with the slider is seted up on the inside top of frame, the threaded bush passes through slider and frame sliding connection.

The further improvement lies in that: the cross section of the adjusting rod is in a convex shape, the adjusting sleeve is locked and fixed with the adjusting rod through a locking bolt at the bottom end, and the upper part of the adjusting rod is provided with scale marks.

The further improvement lies in that: the spring lever is including the sleeve pipe and the telescopic link of sliding connection in intraduct that are fixed in the inside bottom of frame, the telescopic link bottom is connected through linear spring and intraduct bottom.

The further improvement lies in that: the refrigerator and the heater are respectively arranged on two sides inside the machine frame, a machine door is symmetrically installed on the machine frame through hinges, and a transparent observation window is arranged on the machine door.

The further improvement lies in that: the inside sliding connection of board has the toolbox, the toolbox is the symmetry setting on the board, the supporting leg is all installed to the four corners position of board bottom.

The utility model has the advantages that: the utility model discloses a board, rotate through the first screw rod of carousel drive earlier, make first screw rod area support the clamp splice and remove, thereby be convenient for carry out the centre gripping to the bituminous mixture test piece of different dimensions specification fixed, make the device can test and be convenient for carry out the comprehensive evaluation to the bending property of different dimensions test piece to the test piece of not unidimensional, the practicality is higher, the support column that rethread first pneumatic cylinder drive symmetry set up and adjustable rises and carry out two point supports to the test piece bottom, after that adjust the suitable position of test piece top through the motor drive head and exert pressure to the test piece through second pneumatic cylinder drive head, make the device be convenient for carry out the crookedness to the different positions of test piece and measure, thereby make test data diversified, and then make the result that experimental reachs more representative.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a cross-sectional view of the spring rod of the present invention;

FIG. 4 is a side view of the adjustment lever of the present invention;

fig. 5 is an enlarged view of the position a of the present invention.

Wherein: 1. a machine platform; 2. a machine frame; 3. a first hydraulic cylinder; 4. adjusting a rod; 5. a spring lever; 6. an adjusting sleeve; 7. a support pillar; 8. a turntable; 9. a first screw; 10. supporting the clamping block; 11. a limiting rod; 12. a motor; 13. a second screw; 14. a threaded sleeve; 15. a second hydraulic cylinder; 16. a pressure sensor; 17. a pressure head; 18. a distance sensor; 19. a slider; 20. a chute; 21. locking the bolt; 22. scale lines; 23. a refrigerator; 24. a heater; 25. a machine door; 26. a transparent viewing window; 27. a tool box; 28. supporting legs; 501. a sleeve; 502. a telescopic rod; 503. a linear spring.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to fig. 1, 2, 3, 4, 5, the embodiment provides an asphalt mixture bending test device, which comprises a machine table 1, wherein a machine frame 2 is arranged on the machine table 1, a first hydraulic cylinder 3 is fixed at the bottom end inside the machine frame 2, an adjusting rod 4 is fixed at the top end of the first hydraulic cylinder 3, both sides of the bottom end of the adjusting rod 4 are fixed at the bottom end inside the machine frame 2 through spring rods 5, adjusting sleeves 6 are sleeved at both sides of the adjusting rod 4 in a sliding manner, supporting columns 7 are fixed at the top ends of the adjusting sleeves 6, first screw rods 9 driven by a turntable 8 penetrate through both sides of the machine frame 2 in a threaded manner, a supporting clamp 10 is fixed at one end of each first screw rod 9 positioned in the machine frame 2, the first screw rods 9 are driven by the turntable 8 to rotate, so that the supporting clamp 10 is driven by the first screw rods 9, a limiting rod 11 in sliding connection with the machine frame 2 is fixed at one side of the supporting clamp 10 close to, play limiting displacement to supporting

clamp splice

10, 2 inside tops of frame are equipped with the second screw rod 13 through motor 12 driven, second screw rod 13 goes up the screw thread and has cup jointed the thread bush 14 with 2 sliding connection of frame, rotate through motor 12 drive second screw rod 13 to make the thread bush 14 on the second screw rod 13 remove along

second screw rod

13, 14 bottoms of thread bush are equipped with second

pneumatic cylinder

15, 15 bottoms of second pneumatic cylinder are fixed with pressure head 17 through pressure sensor 16, be equipped with distance sensor 18 of slidable mounting on adjusting pole 4 under pressure head 17 for measure the bending distance of test piece.

Threaded sleeve 14 top is fixed with slider 19, the spout 20 that matches with slider 19 is seted up on the inside top of frame 2, threaded sleeve 14 passes through slider 19 and frame 2 sliding connection, makes threaded sleeve 14 more stable at the removal in-process.

The cross section of the adjusting rod 4 is in a convex shape, the adjusting sleeve 6 is locked and fixed with the adjusting rod 4 through a locking bolt 21 at the bottom end, and the upper part of the adjusting rod 4 is provided with scale marks 22, so that the adjusting distance of the adjusting sleeve 6 can be conveniently kept.

Spring beam 5 is including being fixed in sleeve pipe 501 and the telescopic link 502 of sliding connection in the inside of sleeve pipe 501 of the inside bottom of frame 2, telescopic link 502 bottom is connected with the inside bottom of sleeve pipe 501 through linear spring 503, plays certain supporting role through spring beam 5 to adjusting lever 4.

Inside both sides of frame 2 are equipped with refrigerator 23 and heater 24 respectively, are convenient for adjust test temperature, install the quick-witted door 25 through the hinge symmetry on frame 2, be equipped with transparent observation window 26 on the quick-witted door 25, the observation test condition of being convenient for.

The inside sliding connection of board 1 has tool holder 27, the placement tool of being convenient for, tool holder 27 is the symmetry setting on board 1, supporting leg 28 is all installed to the four corners position of board 1 bottom, supports board 1, makes the device more stable.

When the asphalt mixture is required to be subjected to a bending test, firstly, the first screw rod 9 is driven to rotate by the rotary table 8, the first screw rod 9 drives the supporting clamping block 10 to move, the supporting clamping block 10 is adjusted to a proper position according to the size of an asphalt mixture test piece to be tested, then, the test piece is placed on the supporting clamping block 10, the supporting clamping block 10 is driven by the rotary table 8 to clamp and fix the test piece, then, the supporting column 7 is adjusted to a proper position according to the position to be pressed of the test piece and is locked and fixed by the locking bolt 21, then, the supporting column 7 is driven by the first hydraulic cylinder 3 to ascend until the supporting column contacts the lower surface of the test piece, then, the second screw rod 13 is driven to rotate by the motor 12, the threaded sleeve 14 on the second screw rod 13 drives the second hydraulic cylinder 15 and the pressing head 17 to move, the pressing head 17 is adjusted to a proper position above the test piece according to be pressed, and, and simultaneously, the bending distance of the test piece is sensed through the distance sensor 18, so that the mechanical property of the bending and breaking part of the test piece is measured.

The asphalt mixture bending test device comprises a machine table 1, a first screw 9 is driven to rotate by a turntable 8, the first screw 9 drives a supporting clamp 10 to move left and right, thereby facilitating the clamping and fixing of asphalt mixture test pieces with different dimensions, leading the device to be capable of testing the test pieces with different dimensions and facilitating the comprehensive evaluation of the bending performance of the test pieces with different dimensions, having higher practicability, driving the symmetrically arranged and adjustable supporting columns 7 to ascend by the first hydraulic cylinder 3 and carrying out two-point supporting on the bottom end of the test piece, then adjust the suitable position of test piece top and exert pressure to the test piece through motor 12 drive pressure head 17 and through second hydraulic cylinder 15 drive pressure head 17, make the device be convenient for carry out the crookedness to the different positions of test piece and measure to make test data diversified, and then make the result that experimental reachs more representative.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an asphalt mixture bending test device, includes board (1), its characterized in that: be equipped with frame (2) on board (1), the inside bottom mounting of frame (2) has first pneumatic cylinder (3), first pneumatic cylinder (3) top is fixed with adjusts pole (4), it all is fixed in the inside bottom of frame (2) through spring beam (5) to adjust pole (4) bottom both sides, it has adjusting collar (6) all to slide to cup joint to adjust pole (4) both sides, adjusting collar (6) top is fixed with support column (7), the equal screw thread in frame (2) both sides has first screw rod (9) through carousel (8) drive, the one end that first screw rod (9) are located frame (2) is fixed with support clamp splice (10), one side that support clamp splice (10) are close to carousel (8) is fixed with gag lever post (11) with frame (2) sliding connection, frame (2) inside top is equipped with through motor (12) driven second screw rod (13), screw thread sleeve (14) with frame (2) sliding connection is cup jointed to second screw rod (13) upper thread, screw sleeve (14) bottom is equipped with second pneumatic cylinder (15), pressure sensor (16) are fixed with pressure head (17) are passed through to second pneumatic cylinder (15) bottom, be equipped with distance sensor (18) of slidable mounting on adjusting pole (4) under pressure head (17).

2. The asphalt mixture bending test device according to claim 1, characterized in that: threaded sleeve (14) top is fixed with slider (19), frame (2) inside top is seted up spout (20) that match with slider (19), threaded sleeve (14) are through slider (19) and frame (2) sliding connection.

3. The asphalt mixture bending test device according to claim 1, characterized in that: the cross section of the adjusting rod (4) is in a convex shape, the adjusting sleeve (6) is locked and fixed with the adjusting rod (4) through a locking bolt (21) at the bottom end, and scale marks (22) are arranged on the upper portion of the adjusting rod (4).

4. The asphalt mixture bending test device according to claim 1, characterized in that: spring beam (5) are including sleeve pipe (501) and the telescopic link (502) of sliding connection in sleeve pipe (501) inside that are fixed in frame (2) inside bottom, telescopic link (502) bottom is connected with the inside bottom of sleeve pipe (501) through linear spring (503).

5. The asphalt mixture bending test device according to claim 1, characterized in that: frame (2) inside both sides are equipped with refrigerator (23) and heater (24) respectively, install door (25) through the hinge symmetry on frame (2), be equipped with transparent observation window (26) on door (25).

6. The asphalt mixture bending test device according to claim 5, wherein: the inside sliding connection of board (1) has tool holder (27), tool holder (27) are the symmetry setting on board (1), supporting leg (28) are all installed to the four corners position of board (1) bottom.