Auxiliary structure of pavement material strength detector

Abstract

The utility model discloses an auxiliary structure of a pavement material strength detector, which relates to the technical field of material detection and comprises a support, a damping component and a supporting component. When detection work needs to be carried out in the moving process, the motor is started, the motor drives the supporting component to work, one end of the supporting component abuts against the ground, then the other end of the supporting component moves upwards under pushing of counter-acting force so as to drive the support to move upwards, and the universal wheels are disengaged from the ground. At the same time, when the supporting part moves upwards, the damping part can be supported upwards, so that the damping part can play a role in damping, and the situation that the detection result is inaccurate due to the fact that the vibration amplitude is too large when the detection machine carries out detection is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of material detection, in particular to an auxiliary structure of a road material strength detector. Background Art

[0002] Pavement material strength tester is a multifunctional highway subgrade and pavement material testing instrument, which can conduct compressive strength, bending strength, splitting, Marshall stability and other tests on pavement materials such as asphalt mixture.

[0003] Tensile strength is an important parameter to describe the mechanical properties of road engineering materials. Therefore, the determination of the tensile strength of road engineering materials is very important, and the accuracy requirements for the measurement of its related parameters are getting higher and higher. In road engineering, the tensile strength of cement concrete, asphalt concrete and improved soil (also known as stabilized soil) improved by different modifiers has always been an important design parameter. At present, there are mainly two experimental methods for studying the tensile strength of road engineering materials: one is a direct measurement method, such as a uniaxial tensile test; the other is an indirect measurement method, including the beam bending method and the radial fracturing method (also known as the Brazilian splitting method). Among them, the preparation of the specimens and the experimental methods in the direct measurement method are relatively cumbersome and have certain uncertainties. The problem with the beam bending method and the radial fracturing method is that they do not take into account the non-uniform anisotropic characteristics of road engineering materials.

[0004] However, sometimes the pavement material strength tester is required to work outdoors. At this time, there are many unstable factors that will cause deviations in the test results. Among them, the proportion of deviations due to vibration is very high. At the same time, the instrument is inconvenient to move, which greatly reduces work efficiency. Summary of the invention

[0005] The purpose of the utility model is to provide an auxiliary structure of a road material strength tester to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An auxiliary structure of a pavement material strength tester includes a bracket, a plurality of universal wheels are fixedly connected below the bracket, a testing machine is arranged above the bracket, a plurality of positioning grooves are evenly arranged on the bracket, a supporting component for supporting the bracket is connected to the bracket, a limiting groove for limiting the position of the supporting component is opened on the bracket, and a shock-absorbing component for absorbing shock of the testing machine is connected above the supporting component.

[0008] When it is necessary to carry out detection work during movement, start the motor, and the motor will drive the supporting component to work, so that one end of the supporting component will contact the ground, and then the other end of the supporting component will move upward under the push of the reaction force, thereby driving the bracket to move upward, so that the universal wheel is out of contact with the ground, and the device is completely fixed at this time. At the same time, the supporting component will also lift the shock-absorbing component upward when moving upward, so that the shock-absorbing component can play a shock-absorbing role, thereby preventing inaccurate detection results due to excessive vibration amplitude when the detection machine is performing detection.

[0009] A further improvement of the technical solution of the utility model is that: the supporting component includes a base, baffles are fixedly connected to both sides of the base, a motor is fixedly connected to one side of the base, a bidirectional screw rod is rotatably connected to the base, one end of the bidirectional screw rod is fixedly connected to the output end of the motor, sliders are symmetrically arranged on the bidirectional screw rod, the slider is threadedly connected to the bidirectional screw rod, a support rod is rotatably connected to the slider, a support plate is arranged on one side of the base, the support rod is rotatably connected to the support plate, a sliding block is fixedly connected to one side of the baffle plate, the sliding block is slidably connected to the limit groove, sliding grooves are symmetrically arranged on the base, and the slider is slidably connected to the sliding groove.

[0010] The above technical solution is adopted. In this solution, when the motor starts working, the motor will drive the bidirectional screw to rotate. Because one side of the slider is slidably connected to the slide groove on the base, the rotating bidirectional screw will drive the slider to move in the axial direction. The threaded connection between the slider and the bidirectional screw makes the slider have good stability during the movement, and can also more accurately control the movement of the slider. Because the slider and the support plate are connected by a rotating support rod, when the slider is driven to produce a centering movement by the rotation of the bidirectional screw, the distance between the support plate and the base will change with the change of the slider movement, so that it is more convenient to adjust the distance between the base and the support plate, and improve work efficiency. At the same time, when the support plate contacts the ground, a reverse force will be generated to cause the base to move in the opposite direction, thereby lifting the device and achieving the function of fixed support. The limit groove will limit the movement distance of the base.

[0011] A further improvement of the technical solution of the utility model is that the shock absorbing component includes a cylinder body, the cylinder body is fixedly connected to the base, springs are symmetrically arranged in the cylinder body, one end of the spring is fixedly connected to the cylinder body, the other end of the spring is fixedly connected to a top plate, and the top plate is fixedly connected to the detection machine.

[0012] The above-mentioned technical solution is adopted. In this solution, when the supporting component props up the device, it will drive the cylinder body connected to it to move upward. Because the top plate and the cylinder body are connected by a spring, the top plate will also move upward at this time. In this way, when the detection machine is working, it can prevent vibration from being transmitted to the detection machine through the supporting component, thereby avoiding affecting the detection result. At the same time, the vibration generated by the detection machine during operation will be converted into the deformation of the spring, thereby preventing its own vibration from affecting the supporting effect of normal components.

[0013] A further improvement of the technical solution of the utility model is that: a plurality of slide bars are evenly arranged at both ends of the support plate, the slide bars are fixedly connected to the support plate, and the slide bars are slidably connected to the positioning grooves.

[0014] The above technical solution is adopted, in which slide bars are arranged on both sides of the support plate by means of fixed connection. These slide bars can effectively limit the vertical movement of the support plate during the working process, limit other movements of the support plate during the movement process, ensure the stability of the support plate, and thus improve the working efficiency.

[0015] A further improvement of the technical solution of the utility model is that an air intake pipe and an exhaust pipe are respectively arranged on the top plate, the air intake pipe and the exhaust pipe are respectively fixedly connected to the top plate, and a one-way valve is respectively fixedly connected inside the air intake pipe and the exhaust pipe.

[0016] The above-mentioned technical solution is adopted, in which an air inlet pipe and an exhaust pipe are respectively arranged on the top plate, and the purpose of gas transportation can be achieved through the relative movement between the top plate and the cylinder body. Because debris will fall during the inspection process of the material, if the debris is not cleaned up in time, the inspection result of the detection machine will be inaccurate, thereby affecting work efficiency. At the same time, by utilizing the vibration generated by the work to clean up the debris, costs can be greatly saved and work efficiency can be improved.

[0017] A further improvement of the technical solution of the utility model is that the surface of the support plate on the side away from the base is rough.

[0018] The above technical solution is adopted. The surface of the support plate away from the base is rough because this side needs to frequently contact the ground. By increasing the surface roughness, the friction between the support plate and the ground can be effectively increased to prevent the support plate from sliding on the ground, thereby enhancing the fixing effect of the support component. In this way, the stability and reliability of the support component can be ensured, providing guarantee for the overall stability of the equipment.

[0019] A further improvement of the technical solution of the utility model is that a filter screen is fixedly connected and arranged in the air intake pipe.

[0020] The above-mentioned technical solution is adopted, in which a filter is arranged in the air intake pipe to effectively block dust and dirt mixed in the air, prevent dust and bacteria from entering and affecting the supporting work of the shock-absorbing component, and prevent inaccurate detection results due to poor shock-absorbing effect of the shock-absorbing component, thereby reducing work efficiency.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides an auxiliary structure of a pavement material strength tester, in which slide bars are arranged on both sides of a support plate by means of fixed connection. These slide bars can effectively limit the vertical movement of the support plate during operation, limit other movements of the support plate during the movement process, ensure the stability of the support plate, and thus improve work efficiency.

[0023] 2. The utility model provides an auxiliary structure of a pavement material strength tester. An air inlet pipe and an exhaust pipe are respectively arranged on the top plate, and the purpose of gas transportation can be achieved through the relative movement between the top plate and the cylinder body. Because debris will fall during the testing process of the material, if the debris is not cleaned up in time, the test result of the detector will be inaccurate, thereby affecting the work efficiency. At the same time, by utilizing the vibration generated by the work to clean up the debris, the cost can be greatly saved and the work efficiency can be improved.

[0024] 3. The utility model provides an auxiliary structure of a pavement material strength tester. The surface of the support plate away from the base is rough because this side needs to be in frequent contact with the ground. By increasing the surface roughness, the friction between the support plate and the ground can be effectively increased to prevent the support plate from sliding on the ground, thereby enhancing the fixing effect of the support component. In this way, the stability and reliability of the support component can be ensured, providing a guarantee for the overall stability of the equipment.

[0025] 3. The utility model provides an auxiliary structure of a pavement material strength tester. A filter is arranged in the air intake pipe to effectively block dust and dirt mixed in the air, prevent dust and dirt from entering and affecting the supporting work of the shock-absorbing component, and prevent inaccurate test results due to poor shock-absorbing effect of the shock-absorbing component, thereby reducing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the first auxiliary structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the second auxiliary structure of the utility model;

[0030] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0031] Figure 5 It is a partial structural schematic diagram of the utility model;

[0032] In the figure: 1. bracket; 2. universal wheel; 3. detection machine; 4. positioning groove; 5. limit groove; 6. base; 7. baffle; 8. motor; 9. bidirectional screw; 10. slider; 11. support rod; 12. support plate; 13. slide groove; 14. cylinder body; 15. spring; 16. top plate; 17. slide bar; 18. intake pipe; 19. exhaust pipe; 20. filter. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the embodiments:

[0034] Example 1

[0035] like Figure 1 As shown, the utility model provides an auxiliary structure of a pavement material strength tester, including a bracket 1, a plurality of universal wheels 2 are fixedly connected and arranged below the bracket 1, a detection machine 3 is arranged above the bracket 1, a plurality of positioning grooves 4 are evenly arranged on the bracket 1, a supporting component for supporting the bracket 1 is connected to the bracket 1, a limiting groove 5 for limiting the position of the supporting component is opened on the bracket 1, and a shock-absorbing component for absorbing shock of the detection machine 3 is connected above the supporting component.

[0036] In this embodiment, when it is necessary to perform detection work during movement, the motor 8 is started, and the motor 8 drives the support component to work, so that one end of the support component contacts the ground, and then the other end of the support component moves upward under the push of the reaction force, thereby driving the bracket 1 to move upward, so that the universal wheel 2 is out of contact with the ground, and the device is completely fixed at this time. At the same time, the support component will also lift the shock-absorbing component upward when moving upward, so that the shock-absorbing component can play a shock-absorbing role, thereby preventing the detection machine 3 from causing inaccurate detection results due to excessive vibration amplitude during detection.

[0037] like Figure 2As shown, in the present embodiment, preferably, the supporting component includes a base 6, baffles 7 are fixedly connected on both sides of the base 6, a motor 8 is fixedly connected on one side of the base 6, a bidirectional screw rod 9 is rotatably connected to the base 6, one end of the bidirectional screw rod 9 is fixedly connected to the output end of the motor 8, sliders 10 are symmetrically arranged on the bidirectional screw rod 9, the slider 10 is threadedly connected to the bidirectional screw rod 9, a support rod 11 is rotatably connected on the slider 10, a support plate 12 is arranged on one side of the base 6, the support rod 11 is rotatably connected to the support plate 12, a sliding block is fixedly connected on one side of the baffle 7, the sliding block is slidably connected to the limiting groove 5, and a slide groove 13 is symmetrically arranged on the base 6, and the slider 10 is slidably connected to the slide groove 13.

[0038] When the motor 8 starts to work, the motor 8 will drive the bidirectional screw 9 to rotate. Because one side of the slider 10 is slidably connected to the slide groove 13 on the base 6, the rotating bidirectional screw 9 will drive the slider 10 to move in the axial direction. The threaded connection between the slider 10 and the bidirectional screw 9 makes the slider 10 have good stability during the movement, and can also more accurately control the movement of the slider 10. Because the slider 10 is connected to the support plate 12 through the rotating support rod 11, when the slider 10 is driven to produce a centering movement by the rotation of the bidirectional screw 9, the distance between the support plate 12 and the base 6 will change with the change of the movement of the slider 10, so that it is more convenient to adjust the distance between the base 6 and the support plate 12, and improve the work efficiency. At the same time, when the support plate 12 contacts the ground, a reverse force will be generated to make the base 6 move in the opposite direction, thereby lifting the device and achieving the role of fixed support. The limit groove 5 will limit the movement distance of the base 6.

[0039] like Figure 4 As shown, preferably, the shock absorbing component includes a cylinder body 14, which is fixedly connected to the base 6, and a spring 15 is symmetrically arranged in the cylinder body 14, one end of the spring 15 is fixedly connected to the cylinder body 14, and the other end of the spring 15 is fixedly connected to a top plate 16, and the top plate 16 is fixedly connected to the detection machine 3.

[0040] When the supporting component props up the device, it will drive the cylinder body 14 connected to it to move upward. Since the top plate 16 is connected to the cylinder body 14 by the spring 15, the top plate 16 will also move upward at this time. In this way, when the detection machine 3 is working, it can prevent vibration from being transmitted to the detection machine 3 through the supporting component to avoid affecting the detection result. At the same time, the vibration generated by the detection machine 3 during operation will be converted into the deformation of the spring 15 to prevent its own vibration from affecting the supporting effect of normal components.

[0041] Example 2

[0042] like Figure 3As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a plurality of slide bars 17 are evenly arranged at both ends of the support plate 12, the slide bars 17 are fixedly connected to the support plate 12, and the slide bars 17 are slidably connected to the positioning groove 4. A plurality of slide bars 17 are evenly arranged at both ends of the support plate 12, the slide bars 17 are fixedly connected to the support plate 12, and the slide bars 17 are slidably connected to the positioning groove 4.

[0043] In this embodiment, slide bars 17 are provided on both sides of the support plate 12 by means of fixed connection. These slide bars 17 can effectively limit the vertical movement of the support plate 12 during the working process, limit other movements of the support plate 12 during the movement process, ensure the stability of the support plate 12, and thus improve the working efficiency.

[0044] Example 3

[0045] like Figure 3 As shown, based on Example 2, the utility model provides a technical solution: preferably, the surface of the support plate 12 away from the base 6 is rough.

[0046] In this embodiment, the surface of the support plate 12 away from the base 6 is rough because this side needs to frequently contact the ground. By increasing the surface roughness, the friction between the support plate 12 and the ground can be effectively increased to prevent the support plate 12 from sliding on the ground, thereby enhancing the fixing effect of the support component. In this way, the stability and reliability of the support component can be ensured, providing a guarantee for the overall stability of the device.

[0047] Example 4

[0048] like Figure 1 As shown, based on Example 3, the utility model provides a technical solution: preferably, an intake pipe 18 and an exhaust pipe 19 are respectively provided on the top plate 16, and the intake pipe 18 and the exhaust pipe 19 are respectively fixedly connected to the top plate 16, and a one-way valve is respectively fixedly connected in the intake pipe 18 and the exhaust pipe 19.

[0049] In this embodiment, an air inlet pipe 18 and an exhaust pipe 19 are respectively provided on the top plate 16 to achieve the purpose of gas transportation through the relative movement between the top plate 16 and the cylinder body 14. Because debris will fall during the detection process of the material, if the debris is not cleaned up in time, the detection result of the detection machine 3 will be inaccurate, thereby affecting work efficiency. At the same time, by utilizing the vibration generated by the work to clean up the debris, costs can be greatly saved and work efficiency can be improved.

[0050] like Figure 1 As shown, based on Example 1, the utility model provides a technical solution: preferably, a filter screen 20 is fixedly connected to the air intake pipe 18.

[0051] In this embodiment, a filter 20 is provided in the air intake pipe 18 to effectively block dust and dirt contained in the air, prevent dust and dirt from entering and affecting the supporting work of the shock-absorbing component, and prevent inaccurate detection results due to poor shock-absorbing effect of the shock-absorbing component, thereby reducing work efficiency.

[0052] The working principle of the auxiliary structure of this pavement material strength tester is described in detail below.

[0053] like Figure 1-5As shown, when it is necessary to perform detection work during the movement, the motor 8 is started, and the motor 8 drives the support component to work, so that the support component will contact the ground with one end, and then the other end of the support component will move upward under the push of the reaction force, thereby driving the bracket 1 to move upward, so that the universal wheel 2 is out of contact with the ground, and the device is completely fixed at this time. At the same time, the support component will also lift the shock-absorbing component upward when moving upward, so that the shock-absorbing component can play a shock-absorbing role, preventing the detection machine 3 from causing inaccurate detection results due to excessive vibration amplitude when performing detection. When the motor 8 starts to work, the motor 8 will drive the bidirectional screw 9 to rotate. Because one side of the slider 10 is slidably connected to the slide groove 13 on the base 6, the rotating bidirectional screw 9 will drive the slider 10 to move in the axial direction. The slider 10 is threadedly connected to the bidirectional screw 9, so that the slider 10 has good stability during the movement, and can also more accurately control the movement of the slider 10. Because the slider 10 and the support plate 12 are connected by the rotating support rod 11, when the slider 10 is driven to produce the centering movement by the rotation of the bidirectional screw 9, the distance between the support plate 12 and the base 6 will change with the movement of the slider 10, so that it is more convenient to adjust the distance between the base 6 and the support plate 12, and improve the work efficiency. At the same time, when the support plate 12 contacts the ground, a reverse force will be generated to make the base 6 move in the opposite direction, thereby lifting the device to achieve the function of fixed support. The limit groove 5 will limit the movement distance of the base 6. When the support component props up the device, it will drive the cylinder body 14 connected to it to move upward. Because the top plate 16 and the cylinder body 14 are connected by the spring 15, the top plate 16 will also move upward at this time. In this way, when the detection machine 3 is working, it can prevent vibration from being transmitted to the detection machine 3 through the support component to avoid affecting the detection result. At the same time, the vibration generated by the detection machine 3 during operation will be converted into the deformation of the spring 15 to prevent the support effect of the normal components from being affected by its own vibration. On both sides of the support plate 12, a slide bar 17 is provided in a fixed connection manner. These slide bars 17 can effectively limit the vertical movement of the support plate 12 during the working process, limit other movements of the support plate 12 during the movement process, ensure the stability of the support plate 12, and thus improve the working efficiency. The air inlet pipe 18 and the exhaust pipe 19 are respectively arranged on the top plate 16 to achieve the purpose of gas transportation through the relative movement between the top plate 16 and the cylinder body 14. Because the material will have debris falling during the detection process, if the debris is not cleaned up in time, it will cause the detection result of the detection machine 3 to be inaccurate, thereby affecting the working efficiency. At the same time, by utilizing the vibration generated by the work to realize the work of cleaning the debris, it can greatly save costs and improve the working efficiency. The surface of the support plate 12 away from the base 6 is set to be rough because this side needs to be in frequent contact with the ground.By increasing the surface roughness, the friction between the support plate 12 and the ground can be effectively increased to prevent the support plate 12 from sliding on the ground, thereby enhancing the fixing effect of the support component. In this way, the stability and reliability of the support component can be ensured, providing a guarantee for the overall stability of the equipment. The filter 20 provided in the air intake pipe 18 can effectively block dust and dirt mixed in the air, prevent dust and dirt from entering and affecting the support work of the shock absorbing component, and prevent inaccurate detection results due to poor shock absorbing effect of the shock absorbing component, thereby reducing work efficiency.

[0054] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An auxiliary structure of a road material strength tester, comprising a bracket (1); characterized in that: A plurality of universal wheels (2) are fixedly connected to the bottom of the bracket (1), a detection machine (3) is arranged above the bracket (1), a plurality of positioning grooves (4) are evenly arranged on the bracket (1), a support component for supporting the bracket (1) is connected to the bracket (1), a limiting groove (5) for limiting the position of the support component is provided on the bracket (1), and a shock absorbing component for absorbing the shock of the detection machine (3) is connected above the support component.

2. The auxiliary structure of the pavement material strength tester according to claim 1, characterized in that: The supporting component comprises a base (6), baffles (7) are fixedly connected to both sides of the base (6), a motor (8) is fixedly connected to one side of the base (6), a bidirectional screw rod (9) is rotatably connected to the base (6), one end of the bidirectional screw rod (9) is fixedly connected to the output end of the motor (8), a slider (10) is symmetrically arranged on the bidirectional screw rod (9), the slider (10) is threadedly connected to the bidirectional screw rod (9), a support rod (11) is rotatably connected to the slider (10), a support plate (12) is arranged on one side of the base (6), the support rod (11) is rotatably connected to the support plate (12), a sliding block is fixedly connected to one side of the baffle (7), the sliding block is slidably connected to the limiting groove (5), a sliding groove (13) is symmetrically arranged on the base (6), and the slider (10) is slidably connected to the sliding groove (13).

3. The auxiliary structure of the pavement material strength tester according to claim 2, characterized in that: The shock absorbing component comprises a cylinder body (14), the cylinder body (14) is fixedly connected to the base (6), a spring (15) is symmetrically arranged in the cylinder body (14), one end of the spring (15) is fixedly connected to the cylinder body (14), and the other end of the spring (15) is fixedly connected to a top plate (16), and the top plate (16) is fixedly connected to the detection machine (3).

4. The auxiliary structure of the pavement material strength tester according to claim 3, characterized in that: A plurality of slide bars (17) are evenly arranged at both ends of the support plate (12); the slide bars (17) are fixedly connected to the support plate (12); and the slide bars (17) are slidably connected to the positioning groove (4).

5. The auxiliary structure of the pavement material strength tester according to claim 4, characterized in that: An air intake pipe (18) and an exhaust pipe (19) are respectively arranged on the top plate (16); the air intake pipe (18) and the exhaust pipe (19) are respectively fixedly connected to the top plate (16); and one-way valves are respectively fixedly connected inside the air intake pipe (18) and the exhaust pipe (19).

6. The auxiliary structure of the pavement material strength tester according to claim 5, characterized in that: The surface of the support plate (12) on the side away from the base (6) is rough.

7. The auxiliary structure of the pavement material strength tester according to claim 6, characterized in that: A filter screen (20) is fixedly connected to the air intake pipe (18).

Images