Asphalt sampling device for road construction

Abstract

The utility model belongs to the technical field of asphalt sampling, and specifically relates to an asphalt sampling device for road construction, including a support frame, a first hydraulic cylinder is fixedly installed on the support frame, a fixed block with an L-shaped cross section is fixedly connected to the driving end of the first hydraulic cylinder, a bending block is slidably connected to the fixed block, a rotating rod is rotatably installed on one side of the bending block, a sampling frame is arranged at one end of the rotating rod, and an inclined block is fixedly connected to the lower inner wall of the sampling frame; the bending block is connected to the rotating rod through a pull rope, a bending rod is fixedly connected to the support frame, a lifting assembly is arranged on the support frame, and the lifting assembly includes a second hydraulic cylinder slidably installed on the support frame, and the driving end of the second hydraulic cylinder is fixedly connected to the upper surface of the bending block. The sampling operation of the utility model is relatively convenient and the operation continuity is good; and the collected raw material samples can be prevented from being scattered during the transfer, and the practicality is good.

Description

Technical Field

[0001] The utility model relates to an asphalt sampling device for road construction, belonging to the technical field of asphalt sampling. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, technologies related to road construction are also constantly improving. Asphalt pavement is widely used in road construction because of its advantages such as long service life, strong adaptability, good anti-skid performance and good economy. In the construction of asphalt pavement, the raw materials of asphalt pavement are generally mixed with mineral materials and road asphalt materials. In order to ensure the construction quality of asphalt pavement, it is usually necessary to sample the raw materials containing asphalt to test the asphalt content to ensure that it meets the specified standards.

[0003] The asphalt sampling device in the prior art is inconvenient and inefficient for sampling raw materials containing asphalt. The continuity of the sampling and pouring operations of the raw materials containing asphalt is poor. It is also very easy for the raw material samples to fall off during the sampling and transfer process of the raw materials, which is not conducive to the sampling and processing of the asphalt raw materials, and the practicability of the device is poor. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an asphalt sampling device for road construction which has convenient sampling operation, good operation continuity and can prevent the collected raw material samples from being scattered.

[0005] The asphalt sampling device for road construction described in the utility model comprises a support frame, on which a first hydraulic cylinder is fixedly installed, a driving end of the first hydraulic cylinder is fixedly connected to a fixed block with an L-shaped cross section, a bending block is slidably connected to the fixed block, a rotating rod is rotatably installed on one side of the bending block, a sampling frame is provided at one end of the rotating rod, and a bevel block is fixedly connected to the lower inner wall of the sampling frame; the bending block is connected to the rotating rod by a pull rope, a bending rod is fixedly connected to the support frame, a lifting assembly is provided on the support frame, and the lifting assembly comprises a second hydraulic cylinder slidably installed on the support frame, and the driving end of the second hydraulic cylinder is fixedly connected to the upper surface of the bending block.

[0006] Preferably, a torsion spring is sleeved on the rotating rod, one end of the torsion spring is fixedly connected to the rotating rod, and the other end of the torsion spring is fixedly connected to the bending block.

[0007] Preferably, a limiting groove is provided on one side of the fixing block, and one end of the bending block is slidably connected to the limiting groove.

[0008] Preferably, a servo motor is fixedly mounted on the support frame, a rotating shaft is fixedly provided on the driving end of the servo motor, and a knocking cam is fixedly connected to the rotating shaft.

[0009] Preferably, a groove for connecting the rotating rod is provided on one side of the sampling frame, the sampling frame is connected to the rotating rod via bolts, and a threaded groove is provided on the rotating rod.

[0010] Preferably, a plurality of pulleys are rotatably arranged at the bottom of the support frame, and the plurality of pulleys are symmetrically arranged.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the asphalt sampling device for road construction described in the utility model, the asphalt raw material sample is accumulated inside the sampling frame under the action of gravity, which can effectively prevent the asphalt raw material sample from being separated from the sampling frame as the fixed block moves. The sampling operation is relatively convenient and efficient. The sampling and pouring operations of the raw material containing asphalt have good continuity. In the process of sampling and transferring the raw material, the phenomenon of the raw material sample falling can be effectively prevented, which is beneficial to the sampling and processing of the asphalt raw material, and the practicability of the device is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of a partial structure of the utility model from a top view;

[0015] Figure 3 It is a schematic diagram of the side partial structure of the bending block and the bending rod in the utility model;

[0016] Figure 4 It is a schematic diagram of the side partial structure of the sampling frame and the knocking cam in the utility model.

[0017] In the figure: 1, support frame; 2, pulley; 3, first hydraulic cylinder; 4, second hydraulic cylinder; 5, fixed block; 6, bending block; 7, torsion spring; 8, pull rope; 9, rotating rod; 10, bolt; 11, bending rod; 12, sampling frame; 13, knock cam; 14, rotating shaft; 15, limit groove; 16, inclined block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0020] Reference Figure 1-Figure 4 A bitumen sampling device for road construction comprises a support frame 1, on which a first hydraulic cylinder 3 is fixedly mounted, a driving end of the first hydraulic cylinder 3 is fixedly connected to a fixed block 5 having an L-shaped cross section, a bending block 6 is slidably connected to the fixed block 5, a rotating rod 9 is rotatably mounted on one side of the bending block 6, a sampling frame 12 is arranged at one end of the rotating rod 9, a slanted block 16 is fixedly connected to the lower inner wall of the sampling frame 12, the bending block 6 is connected to the rotating rod 9 through a pull rope 8, a bending rod 11 is fixedly connected to the support frame 1, a lifting assembly is arranged on the support frame 1, and the lifting assembly comprises a second hydraulic cylinder 4 slidably mounted on the support frame 1, and a driving end of the second hydraulic cylinder 4 is fixedly connected to the upper surface of the bending block 6.

[0021] A torsion spring 7 is sleeved on the rotating rod 9, one end of the torsion spring 7 is fixedly connected to the rotating rod 9, and the other end of the torsion spring 7 is fixedly connected to the bending block 6. During the relative sliding of the bending block 6 and the fixed block 5, the pull rope 8 will gradually come into close contact with the surface of the bending rod 11. Under the blocking effect of the bending rod 11, the pull rope 8 will be stretched, and the rotating rod 9 will rotate relative to the bending block 6 at the same time, the torsion spring 7 will be deformed, and a limiting groove 15 is provided on one side of the fixed block 5, one end of the bending block 6 is slidably connected to the limiting groove 15, the fixed block 5 can only move up and down along the limiting groove 15, and cannot be separated from the limiting groove 15, and the second hydraulic cylinder 4 can only move left and right, and will not be separated from the support frame 1.

[0022] A servo motor is fixedly installed on the support frame 1, and a rotating shaft 14 is fixedly provided on the driving end of the servo motor. A knocking cam 13 is fixedly connected to the rotating shaft 14. The servo motor drives the rotating shaft 14 to rotate forward and reverse multiple times. As the rotating shaft 14 rotates, the knocking cam 13 will only knock on one side surface of the sampling frame 12 multiple times, and the sampling frame 12 vibrates so that all the asphalt samples inside it can be separated.

[0023] A groove for connecting the rotating rod 9 is provided on one side of the sampling frame 12. The sampling frame 12 is connected to the rotating rod 9 by a bolt 10. A threaded groove is provided on the rotating rod 9. One end of the rotating rod 9 is inserted into the groove, and then the lower end of the bolt 10 is extended into the groove and threadedly connected to the threaded groove. The sampling frame 12 and the rotating rod 9 can be firmly connected together. When the sampling frame 12 needs to be cleaned or replaced, it is convenient to remove it. A plurality of pulleys 2 are rotatably arranged at the bottom of the support frame 1. The plurality of pulleys 2 are symmetrically arranged. The plurality of pulleys 2 are used to facilitate the rapid movement of the support frame 1, and there is no need to manually move the support frame 1.

[0024] In the utility model, when in use, the support frame 1 is first pushed to the position to be sampled, and then the first hydraulic cylinder 3 drives the fixed block 5 to move horizontally, and the bending block 6 moves at the same time, so that the second hydraulic cylinder 4 and the support frame 1 slide relative to each other, and the sampling frame 12 moves with the bending block 6, and then it will be inserted into the asphalt raw material, and part of the asphalt raw material falls into the sampling frame 12. Then the first hydraulic cylinder 3 drives the fixed block 5 to move back to the initial position. During this process, since the cross-section of the inclined block 16 is set in a right-angled triangle, and the height of the inclined block 16 at the frame mouth of the sampling frame 12 is the largest, the asphalt raw material sample will be accumulated inside the sampling frame 12 under the action of gravity, which can effectively prevent the asphalt raw material sample from being separated from the sampling frame 12 as the fixed block 5 moves. Then the second hydraulic cylinder 4 drives the bending block 6 to move slowly upward, and places a collection box (not shown) of sufficient size directly below the sampling frame 12.

[0025] During the relative sliding of the bending block 6 and the fixed block 5, the pull rope 8 will gradually come into close contact with the surface of the bending rod 11. Under the blocking effect of the bending rod 11, the pull rope 8 will be stretched. Since one end of the pull rope 8 is fixedly connected to the bending block 6 and the other end is wrapped around the rotating rod 9, the rotating rod 9 will rotate relative to the bending block 6. The rotating rod 9 rotates very slowly, which can effectively prevent the asphalt sample inside the sampling frame 12 from being thrown out under the action of centrifugal force. After the sampling frame 12 rotates one hundred and eighty degrees, the second hydraulic cylinder 4 stops working. At this time, the asphalt sample in the sampling frame 12 can fall into the collection box under the action of gravity. The sampling operation is more convenient and efficient. The sampling and pouring operations of the raw materials containing asphalt have better continuity. In the process of sampling and transferring the raw materials, the phenomenon of raw material sample falling can be effectively prevented, which is beneficial to the sampling and processing of the asphalt raw materials, and the practicability of the device is better.

[0026] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An asphalt sampling device for road construction, comprising a support frame (1), characterized in that: A first hydraulic cylinder (3) is fixedly mounted on the support frame (1); a driving end of the first hydraulic cylinder (3) is fixedly connected to a fixed block (5) having an L-shaped cross section; a bending block (6) is slidably connected to the fixed block (5); a rotating rod (9) is rotatably mounted on one side of the bending block (6); a sampling frame (12) is disposed at one end of the rotating rod (9); a lower inner wall of the sampling frame (12) is fixedly connected to an inclined block (16); the bending block (6) is connected to the rotating rod (9) via a pull rope (8); a bending rod (11) is fixedly connected to the support frame (1); a lifting assembly is disposed on the support frame (1); the lifting assembly comprises a second hydraulic cylinder (4) slidably mounted on the support frame (1); a driving end of the second hydraulic cylinder (4) is fixedly connected to an upper surface of the bending block (6).

2. The asphalt sampling device for road construction according to claim 1, characterized in that: A torsion spring (7) is sleeved on the rotating rod (9), one end of the torsion spring (7) is fixedly connected to the rotating rod (9), and the other end of the torsion spring (7) is fixedly connected to the bending block (6).

3. The asphalt sampling device for road construction according to claim 1, characterized in that: A limiting groove (15) is provided on one side of the fixing block (5), and one end of the bending block (6) is slidably connected to the limiting groove (15).

4. The asphalt sampling device for road construction according to claim 1, characterized in that: A servo motor is fixedly mounted on the support frame (1), a rotating shaft (14) is fixedly arranged on the driving end of the servo motor, and a knocking cam (13) is fixedly connected to the rotating shaft (14).

5. The asphalt sampling device for road construction according to any one of claims 1 to 4, characterized in that: A groove for connecting the rotating rod (9) is provided on one side of the sampling frame (12). The sampling frame (12) is connected to the rotating rod (9) via a bolt (10). A threaded groove is provided on the rotating rod (9).

6. The asphalt sampling device for road construction according to claim 5, characterized in that: A plurality of pulleys (2) are rotatably arranged at the bottom of the support frame (1), and the plurality of pulleys (2) are symmetrically arranged.

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