Cement stabilized macadam mechanical test device

Abstract

The utility model relates to a cement stabilized macadam mechanical test device which comprises an experiment platform, a conveying belt is arranged on one side of the experiment platform, a test piece base is installed on the experiment platform, a cement stabilized macadam test piece is fixed on the test piece base through a steel clamp, and the steel clamp comprises a steel clamp fixing plate. The steel clamp fixing plate is fixed to the outer side of the test piece base through fixing screws and hinged to the clamping plate, the steel clamp spring is fixedly installed between the clamping plate and the steel clamp fixing plate, the clamping plate is provided with the steel clamp protection sleeve, a test piece groove is formed in the experiment platform, the pressure head is installed above the test piece groove, and the experiment platform is connected with the operation host. The test piece is not conveyed through a transmission belt, manual carrying is not needed, the test piece is arranged in the base, the test piece is fixed through the steel clamp, and the stability of the test process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of rock mechanics property testing, in particular to a mechanical test device for cement stabilized macadam. Background Technique

[0002] The statements herein only provide background techniques related to the utility model and do not necessarily constitute prior art.

[0003] Cement stabilized macadam is a commonly used road material and is widely used in infrastructure construction projects such as highways and airport runways. In actual applications, to ensure the construction quality of cement stabilized macadam, a series of mechanical tests are required to evaluate its mechanical properties, such as compressive strength tests, flexural strength tests, etc.

[0004] Currently, traditional laboratory test methods are usually used for the mechanical tests of cement stabilized macadam, and the following technical problems exist:

[0005] In the traditional mechanical test device, during the test process, the test piece needs to be carried from the ground to the experimental platform. The cement stabilized macadam test piece is paved and compacted by gravel, cementitious materials and mortar according to the interlocking principle. After compaction, the cement stabilized macadam test piece is heavy. During the handling process, safety accidents are likely to occur due to improper operation, threatening the safety of the operators. After the gravel is compressed and damaged during the detection process, it is likely to be skewed, affecting the test accuracy. Content of the Utility Model

[0006] The purpose of the utility model is to provide a mechanical test device for cement stabilized macadam, which can solve at least one of the above technical problems.

[0007] To achieve the above purpose, the utility model proposes a mechanical test device for cement stabilized macadam. A test piece base is installed on the experimental platform. The test piece base fixes the cement stabilized macadam test piece through a steel clamp. The steel clamp includes a steel clamp fixing plate. The steel clamp fixing plate is fixed on the outside of the test piece base through fixing screws. A clamping plate is hingedly installed on the steel clamp fixing plate. A steel clamp spring is fixedly installed between the clamping plate and the steel clamp fixing plate. The clamping plate is provided with a steel clamp protective sleeve. A test piece groove is opened on the experimental platform. A pressure head is installed above the test piece groove. The experimental platform is connected to an operation host.

[0008] Further, the test piece base is a rectangular block, and a placement groove is opened on the test piece base.

[0009] Further, steel clamps are symmetrically arranged in the placement groove, and the steel clamps clamp the test piece.

[0010] Further, the steel clamps are symmetrically arranged on both sides of the placement groove along the central axis of the placement groove.

[0011] Further, the steel clamps are fixed on the base through screws.

[0012] Further set that the conveyor belt is inclined to the experimental platform.

[0013] Further set that the bottom spacing of the placement groove is greater than the width of the test piece.

[0014] Further set that the bottom spacing of the groove is greater than the width of the test piece.

[0015] Further set that an oil pump switch is arranged on the experimental platform, and the oil pump switch is connected to the pressure head through an oil circuit

[0016] Further set that an operating platform is arranged on one side of the test platform, and an operating host is arranged on the operating platform.

[0017] Further set that the operating host is connected to a display, and the operating host is connected to the display through a transmission line.

[0018] Advantages of the above one or more technical solutions:

[0019] The cement stabilized macadam mechanical test device disclosed by the utility model, by arranging a conveyor belt on one side of the experimental platform, the user places the test piece on the conveyor belt from a low place, and after starting the conveyor belt, the test piece is conveyed from a low place to the experimental platform, without manual handling. At the same time, a base is arranged on the experimental platform, the test piece is arranged in the base, and the test piece is fixed by a steel clip, ensuring the stability of the test process. After the gravel is compressed and damaged during the detection process, it can still maintain a certain shape, improving the detection accuracy. Description of the Drawings

[0020] The specification drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation to this application.

[0021] Figure 1 It is a schematic structural diagram of the utility model.

[0022] Figure 2 It is a schematic structural diagram of the base and the test piece of the utility model.

[0023] Figure 3 It is a schematic structural diagram of the conveyor belt of the utility model.

[0024] Figure 4 It is a schematic diagram of the steel clip and the fixing device of the utility model.

[0025] In the figure, pressure head 1; specimen groove 2; conveyor belt 3; specimen 4; oil pump 5; display 6; operating host 7; operating table 8; oil pump switch 9; specimen base 10; steel clamp 11; steel clamp protective cover 111; steel clamp spring 112; clamp plate 113; fixing screw 114; steel clamp fixing plate 115; placement slot 12; experimental platform 13. DETAILED DESCRIPTION

[0026] The specific implementation of this embodiment is described below in conjunction with the accompanying drawings.

[0027] Reference Figure 1 , including an experimental platform 13, a conveyor belt 3 is arranged on one side of the experimental platform 13, the conveyor belt 3 has a low inclination angle, and there is no risk of overturning after the base is installed, so the base on the conveyor belt does not need to be fixed by a steel clamp. When the conveyor belt 3 has a high inclination angle, it can be fixed by a steel clamp. A specimen base 10 is installed on the experimental platform 13, and a specimen base 10 is installed on the conveyor belt 3. The specimen base 10 fixes the specimen 4 through a steel clamp 11. A specimen groove 2 is provided on the experimental platform 13, and a pressure head 1 is installed above the specimen groove 2. The experimental platform 13 is connected to the operating host 7, and the steel clamp 11 includes a steel clamp fixing The fixed plate 115 and the steel clamp fixing plate 115 are fixed to the outside of the specimen base 10 by fixing screws 114. The steel clamp fixing plate 115 is hingedly installed with a clamp 113. A steel clamp spring 112 is fixedly installed between the clamp 133 and the steel clamp fixing plate 115. Before placing the specimen, first pry the clamp 113 outwards, then place the specimen into the specimen base 10, loosen the clamp 113, and under the elastic force of the steel clamp spring 112, the symmetrically arranged clamp 113 and the steel clamp protective cover 111 are pressed against the side wall of the specimen, and the specimen is subjected to the pressure of the clamps 11 on both sides to complete the fixation of the specimen.

[0028] Reference Figure 2 and Figure 3 The specimen base 10 is a rectangular block. A placement groove 12 is provided in the specimen base 10. Steel clamps 11 are symmetrically arranged in the placement groove 12. The steel clamps 11 clamp the specimen 4. The steel clamps 11 are symmetrically arranged on both sides of the placement groove 12 along the central axis of the placement groove 12. The cement-stabilized gravel specimen 4 is fixed by the specimen base 10 and clamped by the steel clamps 11 on both sides to ensure the stability of the transmission process. When the cement-stabilized gravel test is not performed, the base 10 can be placed in the specimen groove 2 to facilitate other tests.

[0029] The conveyor belt 3 and the experimental platform 13 are arranged at an angle. The conveyor belt 3 is a two-stage design, and the left side is connected to the press part for conveying the cement-stabilized crushed stone specimen 4.

[0030] The bottom spacing of the placement grooves 12 is greater than the width of the specimen 4, the bottom spacing of the specimen grooves 2 is greater than the width of the specimen 4, and the size of the specimen grooves 2 is designed according to the standard size of the cement stabilized gravel specimen 4 to ensure that the specimen remains stable during the test.

[0031] An oil pump 5 switch is provided on the experimental platform 13 , and the oil pump 5 switch is connected to the pressure head 1 through an oil circuit. The oil pump 5 is controlled by the oil pump switch 9 to provide power to drive the pressure head 1 to work.

[0032] An operating table 8 is arranged on one side of the test platform, an operating host 7 is arranged on the operating table 8, the operating host 7 is connected to the display 6, and the operating host 7 is connected to the display 6 through a transmission line. The display 6, the operating host 7 and the operating table 8 constitute a control machine part. The display 6 is used to display the test parameters and status, the operating host 7 is used to set and adjust the test parameters, and the operating table 8 provides a convenient operation interface. The control machine is connected to the press part through the display 6, the operating host 7 and the operating table 8 to realize the control of the press and the conveyor belt 3.

[0033] The specific use steps of the utility model are as follows:

[0034] A cement stabilized gravel specimen 4 is placed on a specimen base 10 and clamped with a steel clamp 11 to ensure that the specimen is stable. The tightening process is as follows: the steel clamp 11 includes a steel clamp fixing plate 115, which is fixed to the outside of the specimen base 10 by fixing screws 114. The steel clamp fixing plate 115 is hingedly installed with a clamp 113, and a steel clamp spring 112 is fixedly installed between the clamp 133 and the steel clamp fixing plate 115. Before placing the specimen, first pry open the clamp 113 outwards, and then place the specimen into the specimen base 10. After loosening the clamp 113, under the elastic force of the steel clamp spring 112, the symmetrically arranged clamp 113 and the steel clamp protective cover 111 are pressed against the side wall of the specimen, and the specimen is subjected to the pressure of the clamps 11 on both sides to complete the fixation of the specimen.

[0035] The specimen is conveyed to the specimen groove 2 below the pressure head 1 by the conveyor belt 3 and fixed therein. The test parameters are set by operating the host 7, the oil pump switch 9 is started, the pressure head 1 is driven to apply pressure to the specimen, and the display 6 displays the test data in real time. The mechanical properties test is carried out according to the test requirements. After the test, the specimen is removed from the specimen groove 2, and the data is recorded and analyzed.

[0036] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A mechanical test device for cement stabilized macadam, characterized in that, It includes an experimental platform. A conveyor belt is arranged on one side of the experimental platform. A specimen base is installed on the experimental platform and also on the conveyor belt. The specimen base fixes a cement stabilized macadam specimen through a steel clamp. The steel clamp includes a steel clamp fixing plate which is fixed to the outside of the specimen base through fixing screws. A clamping plate is hingedly installed on the steel clamp fixing plate. A steel clamp spring is fixedly installed between the clamping plate and the steel clamp fixing plate. The clamping plate is provided with a steel clamp protective sleeve. A specimen groove is opened on the experimental platform. A pressure head is installed above the specimen groove. The experimental platform is connected to an operation host.

2. The cement stabilized macadam mechanical test device according to claim 1, characterized in that, The specimen base is a rectangular block, and a placement groove is opened on the specimen base.

3. The cement stabilized macadam mechanical test device according to claim 2, wherein, Steel clamps are symmetrically arranged in the placement groove, and the steel clamps hold the specimen.

4. The cement stabilized macadam mechanical test device according to any one of claims 1 or 2, characterized in that, The steel clamps are symmetrically arranged on both sides of the placement groove along the central axis of the placement groove.

5. The cement stabilized macadam mechanical test device according to claim 1, wherein The conveyor belt is inclined with respect to the experimental platform.

6. The cement stabilized macadam mechanical test device according to claim 2, characterized in that The bottom spacing of the placement groove is greater than the width of the specimen.

7. The cement stabilized macadam mechanical test device according to claim 1, characterized in that, The bottom spacing of the groove is greater than the width of the specimen.

8. The cement stabilized macadam mechanical test device according to claim 1, characterized in that, An oil pump switch is arranged on the experimental platform.

9. The cement stabilized macadam mechanical test device according to claim 1, characterized in that, An operation console is arranged on one side of the experimental platform, and an operation host is arranged on the operation console.

10. The cement stabilized macadam mechanical test device according to claim 1, characterized in that The operation host is connected to a display.

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