Asphalt mixture detector for highway engineering detection

Abstract

The utility model relates to the technical field of asphalt mixture detection, in particular to an asphalt mixture detector for highway engineering detection, which comprises a box body, a constant-temperature water tank is arranged at the top of the box body, a support table is fixedly mounted at the top of the box body and positioned on one side of the constant-temperature water tank, and a test board is arranged at the bottom of the support table and positioned above the constant-temperature water tank. A lifting air cylinder is fixedly installed at the bottom of the testing table, the bottom end of the lifting air cylinder is fixedly connected with a clamping assembly, the clamping assembly comprises an installation base, a positioning frame is fixedly installed in the installation base, the two sides of the inner wall of the positioning frame are each movably connected with a movable strip, and a servo motor is fixedly installed at the bottom of the installation base. According to the device, a pneumatic claw is replaced by the novel grabbing mechanism, and the device has the advantages that compared with the pneumatic claw, the grabbing range is larger, test pieces with large size difference can be grabbed, meanwhile, the fixing effect is better than that of the pneumatic claw, the test pieces are prevented from falling off, and therefore the practicability of the detector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt mixture detection, in particular to an asphalt mixture detection instrument for highway engineering detection. Background Art

[0002] The average linear shrinkage coefficient of asphalt mixture refers to the ratio of the average shrinkage strain to the test temperature difference; the low-temperature shrinkage coefficient of asphalt mixture can reflect the influence of temperature stress on the asphalt mixture during the cooling process; the shrinkage of asphalt mixture causes stress concentration. When the relaxation strain of the asphalt mixture itself is greater than the bonding strength of asphalt, the asphalt pavement will crack; the shrinkage coefficient of asphalt mixture can be used to evaluate the anti-cracking ability of asphalt mixture.

[0003] The Chinese patent with publication number CN217931476U provides an asphalt mixture detector for road engineering inspection. The utility model patent has the advantages that the X slider and the Y slider are dovetail sliders. When the X slider and the Y slider are slidably connected in the corresponding guide rails, the X slider and the Y slider can bear the weight of the components themselves, and the X slider and the Y slider will not fall off the guide rails.

[0004] In addition to the above-mentioned advantages, this utility model patent still has some shortcomings: the device uses a cylinder to drive the air gripper to place the test piece into a constant temperature water tank for insulation measurement, and then takes it out by the air gripper. However, the gripping range of the air gripper is relatively limited. When insulation testing is required for test pieces with large size differences, the gripping range of the air gripper is limited, resulting in limited practicality of the detector. Utility Model Content

[0005] The purpose of the utility model is to provide an asphalt mixture detector for highway engineering detection to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An asphalt mixture tester for highway engineering inspection comprises a box body, a constant temperature water tank is provided on the top of the box body, a support platform is fixedly installed on the top of the box body, which is located on one side of the constant temperature water tank, and a test bench is provided on the bottom of the support platform, which is located above the constant temperature water tank, a lifting cylinder is fixedly installed on the bottom of the test bench, and a clamping assembly is fixedly connected to the bottom end of the lifting cylinder, and the clamping assembly comprises a mounting seat, a positioning frame is fixedly installed inside the mounting seat, and a movable bar is movably connected to both sides of the inner wall of the positioning frame, a servo motor is fixedly installed on the bottom of the mounting seat, a driving shaft is fixedly connected to the output end of the servo motor, and a driving gear is fixedly connected to the top end of the driving shaft, a connecting rod is fixedly connected to the bottom of one end of the movable bar, a shift seat is fixedly connected to the bottom of the connecting rod, and a splint is fixedly connected to the bottom of the shift seat.

[0008] Preferably, two movable grooves are provided at the bottom of the mounting seat, and the inner walls of the movable grooves are adapted to the outer sides of the displacement seat.

[0009] Preferably, corresponding surfaces of the two movable bars are each provided with a number of gear grooves, and the gear grooves are meshed with the outer edges of the driving gears.

[0010] Preferably, a sliding bar is fixedly connected to the contact surface between the movable bar and the positioning frame, sliding grooves are provided on both sides of the inner wall of the positioning frame, and the sliding bar and the sliding groove are adapted to each other.

[0011] Preferably, two mounting grooves are opened on one side of the clamping plate, a number of springs are fixedly connected to the inner wall of the mounting groove, and a protective plate is fixedly connected to one end of the spring.

[0012] Preferably, a number of suction cups are fixedly mounted on one side of the clamping plate between the two protective plates.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the device replaces the air gripper with a new gripping mechanism, which has the advantages that compared with the air gripper, the gripping range is larger and the test pieces with large size differences can be gripped. At the same time, the fixing effect is stronger than that of the air gripper, which prevents the test pieces from falling, thereby improving the practicability of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the clamping assembly in the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 For this utility model Figure 1The overall structural diagram of the positioning frame;

[0018] Figure 4 For this utility model Figure 1 A magnified view of area A in;

[0019] In the figure: 1. box body; 2. constant temperature water tank; 3. support table; 4. test bench; 5. lifting cylinder; 6. clamping assembly; 61. mounting seat; 62. positioning frame; 63. clamping plate; 64. movable bar; 65. driving shaft; 66. driving gear; 67. connecting rod; 68. shift seat; 69. servo motor; 611. movable slot; 631. mounting slot; 621. slide slot; 632. protective plate; 633. spring; 634. suction cup; 641. slide bar. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] An asphalt mixture detector for highway engineering inspection comprises a box body 1, a constant temperature water tank 2 is provided on the top of the box body 1, a support platform 3 is fixedly installed on the top of the box body 1, and a test bench 4 is provided on the bottom of the support platform 3, which is located above the constant temperature water tank 2. A lifting cylinder 5 is fixedly installed on the bottom of the test bench 4, and a clamping assembly 6 is fixedly connected to the bottom end of the lifting cylinder 5. The clamping assembly 6 comprises a mounting seat 61, a positioning frame 62 is fixedly installed inside the mounting seat 61, and a movable bar 64 is movably connected to both sides of the inner wall of the positioning frame 62. A servo motor 69 is fixedly installed on the bottom of the mounting seat 61, a driving shaft 65 is fixedly connected to the output end of the servo motor 69, and a driving gear 66 is fixedly connected to the top of the driving shaft 65. A connecting rod 67 is fixedly connected to the bottom of one end of the movable bar 64, a shift seat 68 is fixedly connected to the bottom of the connecting rod 67, and a clamping plate 63 is fixedly connected to the bottom of the shift seat 68.

[0023] In this embodiment, please refer to Figure 1 , Figure 3 Two movable grooves 611 are provided at the bottom of the mounting seat 61, and the inner walls of the movable grooves 611 are adapted to the outer sides of the shift seat 68, which is beneficial for providing space for the shift seat 68 to move by providing the movable grooves 611, thereby driving the clamping plate 63 to move through the shift seat 68 to clamp or release the specimen.

[0024] In this embodiment, please refer to Figure 3The corresponding surfaces of the two movable bars 64 are provided with a number of gear grooves, and the gear grooves are meshed with the outer edges of the driving gears 66, which is conducive to driving the two movable bars 64 to move toward each other by controlling the driving gear 66 to rotate counterclockwise, and driving the two movable bars 64 to move toward each other by controlling the driving gear 66 to rotate clockwise.

[0025] In this embodiment, please refer to Figure 3 The contact surface between the movable bar 64 and the positioning frame 62 is fixedly connected with a slide bar 641. Slide grooves 621 are provided on both sides of the inner wall of the positioning frame 62. The slide bar 641 and the slide groove 621 are adapted to each other, which is beneficial to reduce the contact surface between the movable bar 64 and the inner wall of the positioning frame 62 when the movable bar 64 moves, thereby reducing friction and making the movable bar 64 move more smoothly.

[0026] In this embodiment, please refer to Figure 4 One side of the clamping plate 63 is provided with two mounting grooves 631, and the inner wall of the mounting groove 631 is fixedly connected with a number of springs 633, and one end of the spring 633 is fixedly connected with a protective plate 632, which is beneficial for placing the specimen between the two protective plates 632 when the clamping plate 63 clamps the specimen, thereby enhancing the fixing effect and preventing it from falling. At the same time, by providing the spring 633, the distance between the two protective plates 632 can be adjusted to make it suitable for specimens with different thicknesses.

[0027] In this embodiment, please refer to Figure 4 A number of suction cups 634 are fixedly installed on one side of the clamping plate 63 between the two protective plates 632. The suction cups 634 are beneficial for protecting the specimen when the clamping plate 63 clamps the specimen, preventing the specimen from being squeezed and damaged. At the same time, the suction cups 634 can further fix the specimen to prevent it from falling.

[0028] Working principle of this utility model:

[0029] In the utility model, the clamping assembly 6 is moved up and down by controlling the lifting cylinder 5, and the servo motor 69 is used to provide power to control the rotation of the driving shaft 65. The rotation of the driving shaft 65 drives the driving gear 66 to rotate. Since the outer edge of the driving gear 66 and the corresponding surface of the movable bar 64 attract each other, the two movable bars 64 can be driven to move toward each other along the inner wall of the positioning frame 62 by controlling the driving gear 66 to rotate counterclockwise. The two movable bars 64 move toward each other so that the shift seat 68 connected at one end moves toward each other, so that the distance between the two shift seats 68 gradually decreases, thereby driving the two clamps 63 to move closer to each other, so that the specimen can be fixedly clamped between the two clamps 63. According to the above principle, the two movable bars 64 can be made to move toward and away from each other by controlling the driving gear 66 to rotate counterclockwise, so that the distance between the two clamps 63 gradually increases, so that the clamping and fixation of the specimen can be stopped.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. The utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An asphalt mixture detector for highway engineering testing, comprising a box (1), characterized in that: A constant temperature water tank (2) is provided on the top of the box (1); a support platform (3) is fixedly installed on the top of the box (1) and located on one side of the constant temperature water tank (2); a test platform (4) is provided on the bottom of the support platform (3) and located above the constant temperature water tank (2); a lifting cylinder (5) is fixedly installed on the bottom of the test platform (4); a clamping assembly (6) is fixedly connected to the bottom end of the lifting cylinder (5); the clamping assembly (6) comprises a mounting seat (61); a positioning frame (62) is fixedly installed inside the mounting seat (61); A movable bar (64) is movably connected to both sides of the inner wall of the positioning frame (62); a servo motor (69) is fixedly installed at the bottom of the mounting seat (61); the output end of the servo motor (69) is fixedly connected to a driving shaft (65); the top of the driving shaft (65) is fixedly connected to a driving gear (66); the bottom of one end of the movable bar (64) is fixedly connected to a connecting rod (67); the bottom of the connecting rod (67) is fixedly connected to a shift seat (68); the bottom of the shift seat (68) is fixedly connected to a clamping plate (63).

2. The asphalt mixture detector for highway engineering detection according to claim 1 is characterized by: Two movable grooves (611) are provided at the bottom of the mounting seat (61), and the inner walls of the movable grooves (611) are adapted to the outer sides of the displacement seat (68).

3. The asphalt mixture detector for highway engineering detection according to claim 1 is characterized by: The corresponding surfaces of the two movable bars (64) are each provided with a number of gear grooves, and the gear grooves are meshed with the outer edges of the driving gears (66).

4. The asphalt mixture detector for highway engineering detection according to claim 1, characterized in that: A sliding bar (641) is fixedly connected to the contact surface between the movable bar (64) and the positioning frame (62), and sliding grooves (621) are provided on both sides of the inner wall of the positioning frame (62), and the sliding bar (641) and the sliding groove (621) are adapted to each other.

5. The asphalt mixture detector for highway engineering detection according to claim 1, characterized in that: Two mounting grooves (631) are provided on one side of the clamping plate (63), a plurality of springs (633) are fixedly connected to the inner wall of the mounting groove (631), and a protective plate (632) is fixedly connected to one end of the spring (633).

6. The asphalt mixture detector for highway engineering testing according to claim 5, characterized in that: A number of suction cups (634) are fixedly mounted on one side of the clamping plate (63) between the two protection plates (632).

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