Testing device for loose paving coefficient of heavy traffic asphalt pavement

Abstract

The utility model relates to the technical field of asphalt pavement testing, in particular to a heavy traffic asphalt pavement loose paving coefficient testing device which comprises a base, a supporting rod is fixedly connected to the surface of the base, a supporting plate is fixedly connected to the surface of the supporting rod, and an adjusting rod is connected to the surface of the supporting plate in a penetrating mode. The surface of the base is connected with a storage bin in an abutting mode, the upper surface of the base is fixedly connected with a measuring scale, the bottom end of an adjusting rod is movably connected with a pressing plate, and a pressure gauge is arranged on the surface of the pressing plate. The measuring scale is connected with the base, under the action of the measuring scale, the thickness of a material in the storage bin is measured, the visual testing effect is achieved, the testing operation performance and effect are improved, the sliding plate is slidably connected with the sliding groove, under the connection of the supporting spring and the sliding plate, elastic control over the acting position of the clamping plate on the base is achieved, and the working efficiency is improved. And the abutting and supporting effect of the abutting block on the acting position of the insertion plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement testing, in particular to a testing device for the loose paving coefficient of a heavy-load traffic asphalt pavement. Background Art

[0002] The loose paving coefficient of asphalt pavement is an important indicator, which reflects the fluidity and operability of asphalt mixture during paving. The size of this coefficient directly affects the quality and performance of the pavement. The quality of the asphalt pavement can be reflected by testing the loose paving coefficient, especially on the pavement with heavy traffic. The loose paving coefficient is particularly important. The existing loose paving coefficient testing method is to assume a loose paving coefficient based on the asphalt structure layer paved in the past, take the loose paving coefficient as the reference value of the test section, and then measure the elevation h1 of the original underlying layer, then spread the asphalt mixture to measure the loose paving elevation h2, and finally measure the elevation h3 after compaction. The loose paving coefficient K = (h2-h1) / (h3-h1). When testing the loose paving coefficient of asphalt pavement, the corresponding data measurement operation is completed by using the test frame, but the existing test frame cannot intuitively view the measurement data, and repeated pressing and measuring operations are required, which affects the test efficiency. In addition, the storage bin is fixed and cannot be separated from the test frame. Once the storage bin is damaged, it needs to be replaced as a whole. Utility Model Content

[0003] The purpose of the utility model is to provide a testing device for the loose paving coefficient of heavy-duty traffic asphalt pavement, so as to solve the problems proposed in the above-mentioned background technology that the measurement data cannot be viewed intuitively, repeated pressing and measuring operations are required, which affects the test efficiency, and the storage bin is fixed in position and cannot be separated from the test frame. Once the storage bin is damaged, it needs to be replaced as a whole.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a testing device for the loose paving coefficient of heavy-load traffic asphalt pavement, comprising a base, the surface of the base is fixedly connected to a support rod, the surface of the support rod is fixedly connected to a support plate, the surface of the support plate is penetrated by an adjusting rod, the surface of the base is abutted and connected to a storage bin, the upper surface of the base is fixedly connected to a measuring ruler, the bottom end of the adjusting rod is movably connected to a pressure plate, the surface of the pressure plate is provided with a pressure gauge, the bottom end of the storage bin is fixedly connected to a plug plate, the surface of the plug plate is provided with a connecting groove, the bottom end of the base is fixedly connected to a support block, the inner side of the support block is slidably connected to a card plate, the surface of the card plate is fixedly connected to a resist block, the surface of the card plate is fixedly connected to a slide plate, the surface of the base is provided with a slide groove, and the surface of the slide plate is fixedly connected to a supporting spring.

[0005] Preferably, the support plate is in a plate shape and acts on the top of the base through a support rod, and the adjustment rod is rotatably connected to the support plate through a thread.

[0006] Preferably, the storage bin is in the shape of an open box, the measuring rulers are in two groups acting on the same side of the storage bin, and the pressure plate is in the shape of a plate acting on the top of the storage bin.

[0007] Preferably, the plug plates are in a plate shape and act on the bottom end of the storage bin, the plug plates are distributed in four groups at the bottom end of the storage bin, and the connection grooves and the plug plates are connected correspondingly.

[0008] Preferably, the cross section of the support block is in an "L" shape, the cross section of the clamping plate is in an "L" shape, and the clamping plate is slidably connected to the base via the support block.

[0009] Preferably, the cross section of the stop block is triangular in shape, the stop block passes through the surface of the insert plate through the connecting groove, and the inclined surface of the stop block is abutted and connected with the inner wall of the connecting groove.

[0010] Preferably, the cross-section of the slide groove is in a "T" shape, the slide plate and the slide groove have the same shape, the support spring acts on the inner side of the slide groove through the slide plate, and the clamping plate is slidably connected to the base through the slide plate and the slide groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Through the connection between the base and the support rod, the connection between the support plate and the adjusting rod, and the connection between the adjusting rod and the pressure plate, the pressing operation of the material in the storage bin is realized. Under the action of the pressure gauge, the pressure data detection effect is achieved. Through the connection between the measuring ruler and the base, under the action of the measuring ruler, the thickness of the material in the storage bin is measured, achieving an intuitive test effect and improving the test operation performance and effect.

[0013] 2. Through the connection between the storage bin and the plug plate, under the connection between the plug plate and the connecting groove, through the through connection between the plug plate and the base, under the abutment connection between the stopper and the connecting groove, the supporting and limiting effect of the action position of the storage bin on the base is realized, and through the sliding connection between the slide plate and the slide groove, under the connection between the support spring and the slide plate, the elastic control of the action position of the card plate on the base is realized, thereby improving the abutment and supporting effect of the stopper on the action position of the plug plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model from the back;

[0016] Figure 3 This is a bottom-up stereoscopic schematic diagram of the connection structure between the support plate and the adjustment rod of the utility model;

[0017] Figure 4 This is a bottom-up perspective cross-sectional schematic diagram of the base and storage bin connection structure of the utility model;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 1. base; 2. support rod; 3. support plate; 4. adjustment rod; 5. storage bin; 6. measuring ruler; 7. pressure plate; 8. pressure gauge; 9. plug plate; 10. connecting groove; 11. support block; 12. clamping plate; 13. stop block; 14. slide plate; 15. slide groove; 16. support spring. DETAILED DESCRIPTION

[0020] See also Figure 1-5 , an embodiment provided by the utility model:

[0021] A testing device for the loose paving coefficient of heavy-duty traffic asphalt pavement comprises a base 1, a support rod 2 is fixedly connected to the surface of the base 1, a support plate 3 is fixedly connected to the surface of the support rod 2, an adjusting rod 4 is connected to the surface of the support plate 3, a storage bin 5 is abutted against the surface of the base 1, a measuring ruler 6 is fixedly connected to the upper surface of the base 1, a pressure plate 7 is movably connected to the bottom end of the adjusting rod 4, a pressure gauge 8 is arranged on the surface of the pressure plate 7, a plug plate 9 is fixedly connected to the bottom end of the storage bin 5, a connecting groove 10 is provided on the surface of the plug plate 9, a supporting block 11 is fixedly connected to the bottom end of the base 1, a card plate 12 is slidably connected to the inner side of the supporting block 11, and the surface of the card plate 12 is fixedly connected to the inner side of the supporting block 11. A resist block 13 is fixedly connected, a slide plate 14 is fixedly connected to the surface of the clamping plate 12, a slide groove 15 is opened on the surface of the base 1, and a support spring 16 is fixedly connected to the surface of the slide plate 14. Through the connection between the base 1 and the support rod 2, and under the connection between the support rod 2 and the support plate 3, the supporting effect on the action position of the adjusting rod 4 and the pressure plate 7 is achieved. Under the action of the pressure plate 7 and the storage bin 5, the downward pressure effect on the material in the storage bin 5 is achieved. Through the action of the pressure gauge 8, and under the action of the pressure gauge 8 and the pressure sensor, the monitoring effect of the pressure acting on the pressure plate 7 is completed. The specific principle is the existing technology and is not used as a technical protection point of this application, and no excessive statements are made here.

[0022] Furthermore, the support plate 3 is in the shape of a plate and acts on the top of the base 1 through the support rod 2. The adjusting rod 4 is rotatably connected to the support plate 3 through a thread. Through the connection between the support plate 3 and the support rod 2, under the action of the support rod 2, the supporting and fixing effect of the action position of the support plate 3 is achieved. Through the threaded connection between the support plate 3 and the adjusting rod 4, the control effect of the action length of the adjusting rod 4 on the support plate 3 is achieved.

[0023] Furthermore, the storage bin 5 is in the shape of an open box, the measuring ruler 6 is in two groups and acts on the same side of the storage bin 5, the pressure plate 7 is in the shape of a plate and acts on the top of the storage bin 5, and the placement and compaction of the materials are completed under the action of the storage bin 5 through the abutment connection between the base 1 and the storage bin 5. The contact surface of the storage bin 5 and the measuring ruler 6 is transparent, which is convenient for the measuring ruler 6 to measure the compaction of the materials in the storage bin 5.

[0024] Furthermore, the plug plate 9 is in a plate shape and acts on the bottom end of the storage bin 5. The plug plates 9 are distributed in four groups at the bottom end of the storage bin 5. The connecting grooves 10 and the plug plates 9 are correspondingly connected. Through the connection between the storage bin 5 and the plug plates 9, and the plug-in connection between the plug plates 9 and the base 1, the positioning and supporting effect of the storage bin 5 at the acting position on the base 1 is achieved.

[0025] Furthermore, the cross-section of the support block 11 is in an "L" shape, and the cross-section of the card plate 12 is in an "L" shape. The card plate 12 is slidably connected to the base 1 through the support block 11, and through the connection between the plug plate 9 and the connecting groove 10. Under the sliding connection between the support block 11 and the card plate 12, the plug-in and fixing operation of the working position of the plug plate 9 on the base 1 is completed.

[0026] Furthermore, the cross-section of the stop block 13 is triangular in shape, and the stop block 13 passes through the surface of the plug board 9 through the connecting groove 10. The inclined surface of the stop block 13 is abutted and connected with the inner wall of the connecting groove 10. Through the connection between the stop block 13 and the clamping plate 12, and under the abutment connection between the stop block 13 and the connecting groove 10, the support and control operation of the action position of the plug board 9 is completed.

[0027] Furthermore, the cross-section of the slide groove 15 is in a "T" shape, the shapes of the slide plate 14 and the slide groove 15 are consistent, the support spring 16 acts on the inner side of the slide groove 15 through the slide plate 14, and the card plate 12 is slidably connected to the base 1 through the slide plate 14 and the slide groove 15. Under the sliding connection between the slide plate 14 and the slide groove 15, the connection between the support spring 16 and the slide plate 14 enables the card plate 12 to slide elastically in the support block 11, thereby facilitating the disassembly and assembly operations of the storage bin 5 at the working position on the base 1.

[0028] Working principle: When testing the loose paving coefficient of the asphalt pavement, place the relevant materials in the storage bin 5, then turn the adjusting rod 4 to make the pressure plate 7 squeeze the materials in the storage bin 5, and under the action of the measuring ruler 6, the data measurement effect is achieved. When disassembling and assembling the storage bin 5, slide the card plate 12 to separate the stop block 13 and the connecting groove 10. At this time, the support spring 16 is in a compressed state, and the plug plate 9 is separated from the base 1. When the position of the plug plate 9 is fixed, the stop block 13 and the connecting groove 10 are abutted, and under the action of the support spring 16, the fixed support effect of the plug plate 9 is achieved.

Claims

1. A test device for the loose paving coefficient of heavy-duty asphalt pavement, comprising a base, characterized in that: The surface of the base is fixedly connected to a support rod, the surface of the support rod is fixedly connected to a support plate, the surface of the support plate is penetrated by an adjusting rod, the surface of the base is abutted and connected to a storage bin, the upper surface of the base is fixedly connected to a measuring ruler, the bottom end of the adjusting rod is movably connected to a pressure plate, the surface of the pressure plate is provided with a pressure gauge, the bottom end of the storage bin is fixedly connected to a plug plate, the surface of the plug plate is provided with a connecting groove, the bottom end of the base is fixedly connected to a support block, the inner side of the support block is slidably connected to a card plate, the surface of the card plate is fixedly connected to a resist block, the surface of the card plate is fixedly connected to a slide plate, the surface of the base is provided with a slide groove, and the surface of the slide plate is fixedly connected to a supporting spring.

2. The test device for the loose paving coefficient of heavy-duty asphalt pavement according to claim 1 is characterized by: The support plate is in a plate shape and acts on the upper side of the base through a support rod. The adjustment rod is rotatably connected to the support plate through a thread.

3. The test device for the loose paving coefficient of heavy-duty asphalt pavement according to claim 1 is characterized by: The storage bin is in the shape of an open box, the measuring rulers are in two groups and act on the same side of the storage bin, and the pressure plate is in the shape of a plate and acts on the top of the storage bin.

4. The test device for the loose paving coefficient of heavy-duty asphalt pavement according to claim 1 is characterized by: The plug plates are in a plate shape and act on the bottom end of the storage bin. The plug plates are distributed in four groups at the bottom end of the storage bin. The connection grooves and the plug plates are connected correspondingly.

5. The test device for the loose paving coefficient of heavy-duty asphalt pavement according to claim 1 is characterized by: The cross section of the support block is in an "L" shape, the cross section of the clamping plate is in an "L" shape, and the clamping plate is slidably connected to the base through the support block.

6. The device for testing the loose paving coefficient of heavy-duty asphalt pavement according to claim 1, characterized in that: The cross section of the stop block is in a triangular shape. The stop block passes through the surface of the plug plate through the connecting groove. The inclined surface of the stop block is abutted and connected with the inner wall of the connecting groove.

7. The device for testing the loose paving coefficient of heavy-duty asphalt pavement according to claim 1 is characterized by: The cross section of the slide groove is in a "T" shape, the slide plate and the slide groove have the same shape, the support spring acts on the inner side of the slide groove through the slide plate, and the clamping plate is slidably connected to the base through the slide plate and the slide groove.

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