Road construction asphalt performance impact detection device and operation method

Abstract

The invention discloses a road construction asphalt performance impact detection device and an operation method, and the device comprises a supporting frame which is arranged on the surface of asphalt; the impact block is mounted on the support frame and is used for carrying out an impact test on the asphalt; the lifting mechanism is installed on the supporting frame and used for lifting the impact block to the designated height. According to the invention, the impact block is lifted to a specified height through the lifting mechanism and then released, the impact block performs natural blanking under the action of gravity and impacts the asphalt surface, the viscosity of the asphalt is reflected through the degree of depression generated by impact, the detection steps are simple, and the efficiency is relatively high.

Description

Technical Field

[0001] The present invention relates to the field of road construction detection, and in particular to a road construction asphalt performance impact detection device and an operation method. Background Art

[0002] Road asphalt is mainly used for paving roads and as a binder for roofing materials. The performance of asphalt is related to road safety, and the performance of asphalt should be tested before road construction. Chinese patent CN202021142829.2 discloses an asphalt viscosity tester, including an electric control box, a test box and a detection assembly. The test box includes a base and a cover. The base and the cover are spliced ​​together to form a closed test chamber. The cover is provided with an inlet and outlet jack, and a sealing sleeve is provided at the inlet and outlet jack. The edge of the cover is also covered with a seal; the detection assembly includes a lifting bracket, a viscometer, a container, a test cylinder, a vacuum pump, and a temperature control assembly arranged outside the test box. The viscometer includes a viscometer body, a rotating motor, and a test stirring rod driven by the rotating motor. The stirring rod can pass through the inlet and outlet jacks and extend into the test cylinder. A relatively more sealed test chamber is adopted, which is less subject to external interference, thereby forming a stable test environment, making the test results more accurate and reliable. The existing tester has the following problems: the asphalt sample needs to be heated to a certain temperature in an oven first, and the sample is taken out of the oven and stirred for testing during testing. After stirring, the viscosity is tested to obtain data. The steps are cumbersome and the testing efficiency is low.

[0003] Based on the above situation, there is an urgent need for a road construction asphalt performance testing device to solve the problem of low testing efficiency. Summary of the invention

[0004] The purpose of the present invention is: for the existing tester, it is necessary to first use an oven to heat the asphalt sample to a certain temperature. When testing, the sample is taken out of the oven and stirred using a testing instrument. After stirring, the viscosity is tested to obtain data. The steps are cumbersome and the detection efficiency is low, thereby solving the problem of low detection efficiency.

[0005] The technical solution of the present invention is as follows: Road construction asphalt performance testing device, including: A support frame is arranged on the asphalt surface; an impact block, mounted on the support frame and used to perform an impact test on the asphalt; The lifting mechanism is installed on the support frame and is used to lift the impact block to a specified height.

[0006] The impact block is lifted to a specified height by a lifting mechanism and then released. Under the action of gravity, the impact block naturally descends and impacts the asphalt surface. The degree of depression caused by the impact reflects the viscosity of the asphalt.

[0007] The existing tester needs to heat the asphalt sample to a certain temperature in an oven first. During the test, the sample is taken out of the oven and stirred by the testing instrument. After stirring, the viscosity is tested to obtain data. The steps are cumbersome and the efficiency is low. In the present scheme, the impact block is lifted to a specified height by the lifting mechanism and then released. The impact block naturally descends under the action of gravity and impacts the asphalt surface. The degree of depression caused by the impact reflects the viscosity of the asphalt. The testing steps are simple and efficient, which solves the problem of low testing efficiency.

[0008] Furthermore, the present solution does not limit the specific structure of the lifting mechanism. One feasible solution is that the lifting mechanism includes a pull rope connected to the impact block and a driving part connected to the pull rope. When this solution is adopted, the pull rope is pulled by the driving part to drive the impact block to rise.

[0009] Furthermore, the present solution does not limit the specific structure of the driving part. One feasible solution is that the driving part includes a drum connected to a pull rope and a servo motor for driving the drum. When this solution is adopted, the drum is driven to rotate by the servo motor, and then the pull rope is pulled, thereby improving the accuracy of the lifting height of the impact block.

[0010] Furthermore, in order to achieve the release of the impact block, one feasible solution is: a clamp for clamping the pull rope and a platform connected to the driving part are installed on the support frame, a protrusion is formed on the platform and a groove matching the protrusion is formed on the support frame, the groove is an L-shaped groove, the platform is adjusted to the upper limit position, the driving part pulls the pull rope to lift the impact block to a specified height, the pull rope is clamped by the clamp to fix the impact block, and then the platform is adjusted to the lower limit position through the groove, the clamp is operated to release the pull rope, and the impact block falls naturally.

[0011] Furthermore, in order to automatically lift the impact block, one feasible solution is: a detection component for detecting the lifting height of the impact block is installed on the support frame. When this solution is adopted, after the detection component detects the impact block, the driving part stops working, thereby realizing the automatic lifting of the impact block.

[0012] Furthermore, the present solution does not solely limit the specific structure of the detection component. One feasible solution is: the detection component includes a movable ring installed on a support frame, and an infrared transmitting end and a receiving end are installed on the movable ring. The movable ring is adjusted to a specified height. When the impact block rises to between the infrared transmitting end and the receiving end, it can block the infrared rays from reaching the receiving end. At this time, the impact block reaches a preset height; a locking screw is installed on the movable ring.

[0013] Furthermore, in order to reflect the degree of depression, one feasible solution is that the impact block is spherical. When this solution is adopted, the depression caused by the impact block on the asphalt is circular, and the diameter of the circular depression is measured to reflect the degree of depression.

[0014] Furthermore, a worm gear mechanism is provided between the servo motor and the roller to prevent the impact block from pulling the roller.

[0015] Furthermore, the clamp includes two movable rods installed on the support frame, and the movable rods are provided with clamping blocks for clamping the pull rope. The movable rods are also provided with elastic members. Specifically, in this embodiment, the elastic member is a spring and the clamping block is a rubber block. When this solution is adopted, the two movable rods are pressed to make the two clamping blocks approach each other and clamp the pull rope. After releasing the movable rods, the two clamping blocks can be separated by the elastic member.

[0016] An operation method for impact testing of asphalt performance in road construction, the testing operation is as follows; By turning the locking screw and fixing the movable ring at the specified height, the platform is adjusted to the upper limit position. The servo motor drives the roller and the pull rope to lift the impact block. When the impact block rises between the infrared transmitting end and the receiving end, it blocks the infrared rays from reaching the receiving end. At this time, the servo motor stops working and presses the two movable rods to make the two clamping blocks approach each other and clamp the pull rope. When the platform is adjusted to the lower limit position, the movable rod is released. The impact block falls naturally under the action of gravity and an impact test is carried out on the asphalt. The viscosity of the asphalt is reflected by measuring the diameter of the depression.

[0017] During operation, the impact block is lifted to a specified height by the lifting mechanism and then released. The impact block naturally drops material under the action of gravity and impacts the asphalt surface. The degree of depression caused by the impact reflects the viscosity of the asphalt. A protrusion is formed on the platform and a groove matching the protrusion is formed on the support frame. The platform is adjusted to the upper limit position, and the driving part pulls the pull rope to lift the impact block to a specified height. The pull rope is clamped by the clamp to fix the impact block, and then the platform is adjusted to the lower limit position through the groove. The clamp is operated to release the pull rope to make the impact block fall naturally.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The impact block is lifted to a specified height by the lifting mechanism and then released. The impact block naturally drops material under the action of gravity and impacts the asphalt surface. The degree of depression caused by the impact reflects the viscosity of the asphalt. The detection steps are simple and the efficiency is high, which solves the problem of low detection efficiency. Second, since the driving part includes a drum connected to the pull rope and a servo motor for driving the drum, the drum is driven to rotate by the servo motor, thereby pulling the pull rope, thereby improving the accuracy of the lifting height of the impact block; 3. Since the support frame is equipped with a clamp for clamping the pull rope and a platform connected to the driving part, a protrusion is formed on the platform and a groove matching the protrusion is formed on the support frame, the platform is adjusted to the upper limit position, the driving part pulls the pull rope to lift the impact block to a specified height, the pull rope is clamped by the clamp to fix the impact block, and then the platform is adjusted to the lower limit position through the groove, and the clamp is operated to release the pull rope to make the impact block fall naturally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall first viewing angle structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall structure of the embodiment of the present invention from a second viewing angle; Figure 3 This is a schematic diagram of the structure of the driving part of an embodiment of the present invention; Figure 4 This is a schematic diagram of the support structure of an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the detection component of an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of point A in .

[0020] Reference numerals: 1. Support frame; 2. Impact block; 3. Lifting mechanism; 4. Clamp; 5. Platform; 6. Detection component; 11. Groove; 31. Pull rope; 32. Driving unit; 321, roller; 322, servo motor; 41. movable rod; 42. elastic member; 43. clamping block; 51. Bump; 61. Movable ring; 62. Infrared transmitting end; 63. Receiving end; 64. Locking screw. DETAILED DESCRIPTION

[0021] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0022] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0023] Example: Please refer to Figure 1 , road construction asphalt performance testing device, including: A support frame 1 is arranged on an asphalt surface; An impact block 2, mounted on the support frame 1 and used to perform an impact test on the asphalt; The lifting mechanism 3 is installed on the support frame 1 and is used to lift the impact block 2 to a specified height.

[0024] The existing tester needs to heat the asphalt sample to a certain temperature in an oven first. When testing, the sample is taken out of the oven and stirred by the testing instrument. After stirring, the viscosity is tested to obtain data. The steps are cumbersome and the efficiency is low. In this solution, the impact block 2 is lifted to a specified height by the lifting mechanism 3 and then released. The impact block 2 naturally unloads under the action of gravity and impacts the asphalt surface. The degree of depression caused by the impact reflects the viscosity of the asphalt. The testing steps are simple and efficient, which solves the problem of low testing efficiency.

[0025] Reference Figure 2 This solution does not limit the specific structure of the lifting mechanism 3. One feasible solution is: the lifting mechanism 3 includes a pull rope 31 connected to the impact block 2 and a driving part 32 connected to the pull rope 31. When this solution is adopted, the pull rope 31 is pulled by the driving part 32 to drive the impact block 2 to rise.

[0026] Reference Figure 3 This solution does not limit the specific structure of the driving part 32. One feasible solution is: the driving part 32 includes a roller 321 connected to the pull rope 31 and a servo motor 322 for driving the roller 321. When this solution is adopted, the servo motor 322 drives the roller 321 to rotate, and then pulls the pull rope 31, thereby improving the height accuracy of the impact block 2.

[0027] Preferably, a worm gear mechanism is provided between the servo motor 322 and the roller 321 . When this solution is adopted, it is possible to prevent the impact block 2 from pulling the roller 321 .

[0028] Reference Figure 3 and Figure 4 In order to release the impact block 2, one feasible solution is: a clamp 4 for clamping the pull rope 31 and a platform 5 connected to the driving part 32 are installed on the support frame 1, a protrusion 51 is formed on the platform 5 and a groove 11 matching the protrusion 51 is formed on the support frame 1. Specifically, in this embodiment, the groove 11 is an L-shaped groove. When this solution is adopted, the platform 5 is adjusted to the upper limit position, the driving part 32 pulls the pull rope 31 to lift the impact block 2 to a specified height, the pull rope 31 is clamped by the clamp 4 to fix the impact block 2, and then the platform 5 is adjusted to the lower limit position through the groove 11, and the clamp 4 is operated to release the pull rope 31, so that the impact block 2 falls naturally.

[0029] This solution does not limit the specific structure of the clamp 4. One feasible solution is: the clamp 4 includes two movable rods 41 installed on the support frame 1, and the movable rods 41 are provided with clamping blocks 43 for clamping the pull rope. The movable rods 41 are also provided with elastic members 42. Specifically, in this embodiment, the elastic member 42 is a spring, and the clamping block 43 is a rubber block. When this solution is adopted, the two movable rods 41 are pressed to make the two clamping blocks 43 approach each other and clamp the pull rope 31. After the movable rods 41 are released, the two clamping blocks 43 are separated by the elastic member 42.

[0030] Reference Figure 1 and Figure 2 In order to automatically lift the impact block 2, one feasible solution is: a detection component 6 for detecting the lifting height of the impact block 2 is installed on the support frame 1. When this solution is adopted, after the detection component 6 detects the impact block 2, the driving part 32 stops working, thereby realizing the automatic lifting of the impact block 2.

[0031] Reference Figure 5 and Figure 6 This solution does not limit the specific structure of the detection component 6. One feasible solution is: the detection component 6 includes a movable ring 61 installed on the support frame 1, and the movable ring 61 is installed with an infrared transmitting end 62 and a receiving end 63. When this solution is adopted, the movable ring 61 is adjusted to a specified height. When the impact block 2 rises to between the infrared transmitting end 62 and the receiving end 63, it can block the infrared rays from reaching the receiving end 63. At this time, the impact block 2 reaches a preset height.

[0032] This solution does not limit the fixing method of the movable ring 61 . One feasible solution is that a locking screw 64 is installed on the movable ring 61 . When this solution is adopted, the locking screw 64 is tightened to fix the movable ring 61 .

[0033] In order to reflect the degree of depression, one feasible solution is that the impact block 2 is spherical. When this solution is adopted, the depression caused by the impact block 2 on the asphalt is circular, and the diameter of the circular depression is measured to reflect the degree of depression.

[0034] The working principle of this embodiment: By turning the locking screw 64 and fixing the movable ring 61 at a specified height, the platform 5 is adjusted to the upper limit position, and the servo motor 322 drives the roller 321 and causes the pull rope 31 to lift the impact block 2. When the impact block 2 rises to between the infrared transmitting end 62 and the receiving end 63, the infrared rays are blocked from reaching the receiving end 63. At this time, the servo motor 322 stops working, and the two movable rods 41 are pressed to make the two clamping blocks 43 approach each other and clamp the pull rope 31. When the platform 5 is adjusted to the lower limit position, the movable rod 41 is released, and the impact block 2 falls naturally under the action of gravity and performs an impact test on the asphalt. The viscosity of the asphalt is reflected by measuring the diameter of the depression.

[0035] In order to solve the problem of low detection efficiency, in this solution, the impact block 2 is lifted to a specified height by the lifting mechanism 3 and then released. The impact block 2 naturally feeds under the action of gravity and impacts the asphalt surface. The degree of depression caused by the impact reflects the viscosity of the asphalt. The detection steps are simple and efficient, which solves the problem of low detection efficiency.

[0036] In order to improve the accuracy of the lifting height of the impact block 2, in this solution, since the driving part 32 includes a roller 321 connected to the pull rope 31 and a servo motor 322 for driving the roller 321, the servo motor 322 drives the roller 321 to rotate, and then pulls the pull rope 31, thereby improving the accuracy of the lifting height of the impact block 2.

[0037] In order to achieve the natural falling of the impact block 2, in the present scheme, since a clamp 4 for clamping the pull rope 31 and a platform 5 connected to the driving part 32 are installed on the support frame 1, a protrusion 51 is formed on the platform 5 and a groove 11 matching the protrusion 51 is formed on the support frame 1, the platform 5 is adjusted to the upper limit position, the driving part 32 pulls the pull rope 31 to lift the impact block 2 to a specified height, the pull rope 31 is clamped by the clamp 4 to fix the impact block 2, and then the platform 5 is adjusted to the lower limit position through the groove 11, and the clamp 4 is operated to release the pull rope 31, so that the impact block 2 falls naturally.

[0038] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A road construction asphalt performance impact detection device, characterized in that: include: A support frame (1) is arranged on an asphalt surface; An impact block (2) mounted on the support frame (1) and used to perform an impact test on asphalt; A lifting mechanism (3) is installed on the support frame (1) and is used to lift the impact block (2) to a specified height; the device lifts the impact block (2) to the specified height through the lifting mechanism (3) and then releases it, and the impact block (2) naturally descends under the action of gravity and impacts the asphalt surface, and the degree of depression caused by the impact reflects the viscosity of the asphalt.

2. The road construction asphalt performance detection device according to claim 1 is characterized in that: The lifting mechanism (3) comprises a pull rope (31) connected to the impact block (2) and a driving part (32) connected to the pull rope (31).

3. The road construction asphalt performance detection device according to claim 2 is characterized in that: The driving part (32) comprises a drum (321) connected to the pull rope (31) and a servo motor (322) for driving the drum (321).

4. The road construction asphalt performance detection device according to claim 2 is characterized in that: The support frame (1) is provided with a clamp (4) for clamping a pull rope (31) and a platform (5) connected to the driving unit (32); a protrusion (51) is formed on the platform (5) and a groove (11) is formed on the support frame (1) to cooperate with the protrusion (51); the groove (11) is an L-shaped groove; the platform (5) is adjusted to an upper limit position, the driving unit (32) pulls the pull rope (31) to lift the impact block (2) to a specified height, the clamp (4) clamps the pull rope (31) to fix the impact block (2), and then the platform (5) is adjusted to a lower limit position through the groove (11); the clamp (4) is operated to release the pull rope (31), so that the impact block (2) falls naturally.

5. The road construction asphalt performance detection device according to claim 2, characterized in that: The support frame (1) is provided with a detection component (6) for detecting the lifting height of the impact block (2); when the detection component (6) detects the impact block (2), the driving part (32) stops working, thereby achieving automatic lifting of the impact block (2).

6. The road construction asphalt performance detection device according to claim 5, characterized in that: The detection assembly (6) comprises a movable ring (61) mounted on the support frame (1), and an infrared emitting end (62) and a receiving end (63) are mounted on the movable ring (61); when the movable ring (61) is adjusted to a specified height, when the impact block (2) rises to between the infrared emitting end (62) and the receiving end (63), infrared rays can be blocked from reaching the receiving end (63), and at this time, the impact block (2) reaches a preset height; and a locking screw (64) is mounted on the movable ring (61).

7. The road construction asphalt performance detection device according to claim 1, characterized in that: The impact block (2) is spherical.

8. The road construction asphalt performance detection device according to claim 3, characterized in that: A worm gear mechanism is provided between the servo motor (322) and the roller (321) to prevent the impact block (2) from pulling the roller (321).

9. The road construction asphalt performance detection device according to claim 4, characterized in that: The clamp (4) comprises two movable rods (41) mounted on the support frame (1), a clamping block (43) for clamping the pull rope is mounted on the movable rod (41), and an elastic member (42) is also mounted on the movable rod (41), wherein the elastic member (42) is a spring, and the clamping block (43) is a rubber block. When this solution is adopted, the two movable rods (41) are pressed to make the two clamping blocks (43) approach each other and clamp the pull rope (31), and after the movable rods (41) are released, the two clamping blocks (43) can be separated by the elastic member (42).

10. A road construction asphalt performance impact detection operation method, characterized in that: The detection operation is as follows; By rotating the locking screw (64) and fixing the movable ring (61) at a specified height, the platform (5) is adjusted to the upper limit position, and the servo motor (322) drives the roller (321) and causes the pull rope (31) to lift the impact block (2). When the impact block (2) rises to between the infrared transmitting end (62) and the receiving end (63), the infrared rays are blocked from reaching the receiving end (63). At this time, the servo motor (322) stops working, and the two movable rods (41) are pressed to make the two clamping blocks (43) approach each other and clamp the pull rope (31). Then, the platform (5) is adjusted to the lower limit position to release the movable rod (41), so that the impact block (2) falls naturally under the action of gravity and performs an impact test on the asphalt. The viscosity of the asphalt is reflected by measuring the diameter of the depression; During operation, the impact block (2) is lifted to a specified height by the lifting mechanism (3) and then released, so that the impact block (2) naturally descends under the action of gravity and impacts the asphalt surface, whereby the degree of depression caused by the impact reflects the viscosity of the asphalt; During operation, a protrusion (51) is formed on the platform (5) and a groove (11) is formed on the support frame (1) to cooperate with the protrusion (51). The platform (5) is adjusted to an upper limit position, the driving unit (32) pulls the pull rope (31) to lift the impact block (2) to a specified height, the pull rope (31) is clamped by the clamp (4) to fix the impact block (2), and the platform (5) is adjusted to a lower limit position by the groove (11). The clamp (4) is operated to release the pull rope (31) to allow the impact block (2) to fall naturally.

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