Cement stabilized macadam construction quality detection device

Abstract

The utility model discloses a cement stabilized macadam construction quality detection device which comprises a machine body, an alignment piece, a driving piece and a limiting frame, an upper pressing disc and a lower pressing disc are arranged at the top end of the machine body, a pushing module is arranged at the bottom end of the lower pressing disc, the alignment piece is arranged at the top end of the machine body, and the driving piece is arranged at one end of the alignment piece. The driving part is used for driving the aligning part, and the limiting frame is arranged at the other end of the aligning part and used for limiting the moving direction of the aligning part. By utilizing the design of the aligning piece, the driving piece and the limiting frame, a sampling object is placed at the top end of the lower pressing disc, and the driving motor is started to drive the bidirectional screw rod to rotate, so that the moving ring is driven to be close to the direction of the sampling object, and the moving ring drives the aligning plates, so that the symmetrically arranged aligning plates push the two sides of the sampling object; the sampling object is moved to the middle part of the top end of the lower pressure plate, so that the force application is more uniform when the upper pressure plate and the lower pressure plate pressurize the sampling object.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically a cement-stabilized crushed stone construction quality testing device. Background Technology

[0002] During road construction, after the cement-stabilized crushed stone layer is completed, it is necessary to sample the cement-stabilized crushed stone layer and conduct unconfined compressive strength tests.

[0003] When conducting unconfined compression tests, the sample is placed between the upper and lower pressure plates of the testing instrument. The test results are obtained by applying pressure to the sample by the upper and lower pressure plates. However, the sample is usually placed manually, which may result in the sample being misplaced. This can lead to uneven force being applied to the sample when the upper and lower pressure plates are pressing it. Utility Model Content

[0004] The purpose of this invention is to provide a cement-stabilized crushed stone construction quality testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cement-stabilized crushed stone construction quality testing device, comprising a body, an upper pressure plate and a lower pressure plate for pressurizing the sample at the top of the body, and a pushing module for pushing the lower pressure plate at the bottom of the lower pressure plate, and further comprising:

[0006] An alignment element, which is located at the top of the machine body, is used for moving the sample;

[0007] A driving component is disposed at one end of an alignment component, and the driving component is used to drive the alignment component.

[0008] A limiting frame is disposed at the other end of the alignment member, and the limiting frame is used to restrict the direction of movement of the alignment member.

[0009] Preferably, a mounting column is fixedly connected to the top of the machine body, a controller is provided on the outside of the mounting column, and the bottom end of the pressure plate is fixedly connected to the output end of the push module.

[0010] Preferably, the alignment member includes:

[0011] Alignment plate, the alignment plate being used to push the sample;

[0012] A movable ring, the outer wall of which is fixedly connected to one end of an alignment plate, the movable ring being used to connect with a driving component, and a threaded groove being provided on one side of the movable ring;

[0013] A locking block, the outer wall of which is fixedly connected to the other end of an alignment plate, is used to connect with a limiting frame. Preferably, the end of the locking block has a groove, and a roller is disposed inside the groove.

[0014] Preferably, the driving element includes:

[0015] A bidirectional screw, wherein the bidirectional screw is threadedly connected to a threaded groove;

[0016] The drive motor has its output end fixedly connected to one end of a bidirectional screw, and its bottom end is fixedly connected to the top end of the machine body.

[0017] Preferably, a bearing is fitted on the outer wall of the other end of the drive motor, a second fixing plate is provided on one side of the bearing, a first fixing plate is provided on one end of the drive motor, a circular hole is opened on one side of the first fixing plate, and the bidirectional screw is inserted and connected to the circular hole.

[0018] Preferably, the bottom end of the limiting frame is fixedly connected to the top end of the machine body, and a snap-fit ​​groove is provided on one side of the limiting frame, with the snap-fit ​​block slidingly inserted into the snap-fit ​​groove.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] This invention utilizes the design of an alignment component, a driving component, and a limiting frame. By placing the sample on the top of the lower pressure plate and starting the drive motor, the drive motor rotates the bidirectional screw, thereby causing the moving ring to move closer to the sample. The moving ring drives the alignment plate, and the symmetrically arranged alignment plate pushes both sides of the sample, moving the sample to the center of the top of the lower pressure plate. This ensures that when the upper and lower pressure plates apply pressure to the sample, the force is more even. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This utility model Figure 1 Schematic diagram of the enlarged structure of A in the middle;

[0023] Figure 3 This is a three-dimensional structural diagram of the alignment component of this utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting frame of this utility model.

[0025] In the diagram: 1. Machine body; 2. Upper pressure plate; 3. Mounting column; 4. Lower pressure plate; 5. Push module; 6. Controller; 7. Alignment component; 71. Moving ring; 72. Alignment plate; 73. Locking block; 74. Roller; 8. Drive component; 81. Drive motor; 82. Bidirectional screw; 83. First fixing plate; 84. Bearing; 85. Second fixing plate; 9. Limiting frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. The present utility model provides as follows: Figure 1-4 The device for testing the construction quality of cement-stabilized crushed stone, as shown, includes a body 1. The top of the body 1 is equipped with an upper pressure plate 2 and a lower pressure plate 4 for pressurizing the sample. The bottom of the lower pressure plate 4 is equipped with a pushing module 5 for pushing the lower pressure plate 4. The device also includes:

[0027] Alignment component 7 is located at the top of the body 1 and is used for moving the sample.

[0028] A driving component 8 is disposed at one end of an aligning component 7 and is used to drive the aligning component 7.

[0029] A limiting frame 9 is disposed at the other end of the aligning member 7, and the limiting frame 9 is used to limit the direction of movement of the aligning member 7.

[0030] A mounting column 3 is fixedly connected to the top of the body 1. A controller 6 is installed on the outside of the mounting column 3. The bottom end of the pressure plate 4 is fixedly connected to the output end of the push module 5.

[0031] Furthermore, the body 1, upper pressure plate 2, mounting column 3, lower pressure plate 4, push module 5, and controller 6 are components of the existing TC-20A road material strength tester. After sampling the cement-stabilized crushed stone layer and before the unconfined compressive strength test, the sample is first placed on the top of the lower pressure plate 4. The sample is moved by operating the alignment component 7 so that it is located in the middle of the lower pressure plate 4. Then, the alignment component 7 is moved away from the sample, and the push module 5 is controlled to push the lower pressure plate 4, so that the lower pressure plate 4 moves closer to the upper pressure plate 2. Under the combined action of the upper pressure plate 2 and the lower pressure plate 4, the sample is subjected to the unconfined compressive strength test. The test results are output by the controller 6. The method of moving the sample to the middle of the top of the lower pressure plate 4 by the alignment component 7 can ensure that the pressure applied to the sample is more uniform when the upper pressure plate 2 and the lower pressure plate 4 are pressurized.

[0032] Alignment component 7 includes:

[0033] Alignment plate 72, the alignment plate 72 is used to push the sample;

[0034] The outer wall of the movable ring 71 is fixedly connected to one end of the alignment plate 72. The movable ring 71 is used to connect with the driving component 8. A threaded groove is provided on one side of the movable ring 71.

[0035] The outer wall of the locking block 73 is fixedly connected to the other end of the alignment plate 72, and the locking block 73 is used to connect with the limiting frame 9.

[0036] The end of the card block 73 has a groove, and a roller 74 is installed inside the groove.

[0037] Furthermore, two aligning pieces 7 are symmetrically arranged, located on both sides of the lower pressure plate 4. The aligning pieces 7 are located between the lower pressure plate 4 and the mounting post 3. The two ends of the aligning plate 72 are welded and fixed to the contact parts of the moving ring 71 and the locking block 73, respectively. The top and bottom ends of the locking block 73 are respectively provided with grooves. A smooth round rod is welded to the inner wall of the groove. The roller 74 is sleeved on the outer wall of the smooth round rod, so that the roller 74 can only rotate. When the locking block 73 moves in the locking groove, the rolling of the roller 74 can reduce the friction and make the movement of the locking block 73 smoother. The locking block 73 and the aligning plate 72 form a T-shape.

[0038] Drive component 8 includes:

[0039] The double-ended screw 82 is threadedly connected to the threaded groove.

[0040] The drive motor 81 has its output end fixedly connected to one end of the bidirectional screw 82, and its bottom end is fixedly connected to the top end of the body 1.

[0041] A bearing 84 is fitted on the outer wall of the other end of the drive motor 81. A second fixing plate 85 is provided on one side of the bearing 84. A first fixing plate 83 is provided on one end of the drive motor 81. A round hole is opened on one side of the first fixing plate 83. A bidirectional screw 82 is inserted and connected to the round hole.

[0042] The bottom end of the limiting frame 9 is fixedly connected to the top end of the body 1. A snap-fit ​​groove is provided on one side of the limiting frame 9, and the snap-fit ​​block 73 slides through the inside of the snap-fit ​​groove.

[0043] Furthermore, the drive motor 81 is an existing motor capable of forward and reverse rotation. The output shaft of the drive motor 81 is fixedly connected to one end of the bidirectional screw 82 via a coupling. The bearing 84 is fixedly sleeved on the outer wall of the other end of the bidirectional screw 82. The bearing 84 is an existing ball bearing. The outer ring thickness of the bearing 84 is greater than the inner ring thickness. The inner ring is welded and fixed to the outer wall of the end of the bidirectional screw 82. The outer ring is welded and fixed to the part in contact with the second fixing plate 85. The bottom end of the second fixing plate 85 is welded and fixed to the top end of the machine body 1. The bottom end of the first fixing plate 83 is welded and fixed to the top end of the machine body 1. The round hole has a smooth inner wall, and the thread on the inner wall of the threaded groove meshes with the thread on the outer wall of the bidirectional screw 82.

[0044] When conducting an unconfined compression test on the sample, the sample is first placed on the top of the lower pressure plate 4. Then, by starting the drive motor 81, the bidirectional screw 82 is rotated clockwise, causing the two moving rings 71 to move towards each other. The moving rings 71 drive the alignment plate 72, so that the alignment plate 72 contacts both sides of the outer wall of the sample, pushing the sample to the middle of the top of the lower pressure plate 4. Then, the output shaft of the drive motor 81 is controlled to rotate counterclockwise, so that the alignment plate 72 moves away from the sample. Finally, the push module 5 is controlled to push the lower pressure plate 4 towards the upper pressure plate 2 to conduct the unconfined compression test on the sample. This method can make the pressure more uniform when applying pressure to the sample.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cement-stabilized crushed stone construction quality testing device, comprising a body (1), wherein the top of the body (1) is provided with an upper pressure plate (2) and a lower pressure plate (4) for pressurizing the sample, and the bottom of the lower pressure plate (4) is provided with a pushing module (5) for pushing the lower pressure plate (4), characterized in that, Also includes: Alignment member (7), which is disposed at the top of the body (1) and is used for moving the sample; A driving element (8) is disposed at one end of an aligning element (7) and is used to drive the aligning element (7); A limiting frame (9) is disposed at the other end of the alignment member (7) and is used to limit the direction of movement of the alignment member (7).

2. The cement-stabilized crushed stone construction quality testing device according to claim 1, characterized in that, The top of the body (1) is fixedly connected to a mounting column (3), and a controller (6) is provided on the outside of the mounting column (3). The bottom end of the pressure plate (4) is fixedly connected to the output end of the push module (5).

3. The cement-stabilized crushed stone construction quality testing device according to claim 1, characterized in that, The alignment member (7) includes: Alignment plate (72), said alignment plate (72) is used to push the sample; A movable ring (71) is fixedly connected to one end of an alignment plate (72) on its outer wall. The movable ring (71) is used to connect with a drive component (8). A threaded groove is provided on one side of the movable ring (71). A locking block (73) is fixedly connected to the other end of an alignment plate (72) on its outer wall. The locking block (73) is used to connect with a limiting frame (9).

4. The cement-stabilized crushed stone construction quality testing device according to claim 3, characterized in that, The end of the card block (73) is provided with a groove, and a roller (74) is provided inside the groove.

5. The cement-stabilized crushed stone construction quality testing device according to claim 3, characterized in that, The driving component (8) includes: A bidirectional screw (82) is threadedly connected to a threaded groove; A drive motor (81) is provided, the output end of which is fixedly connected to one end of a bidirectional screw (82), and the bottom end of the drive motor (81) is fixedly connected to the top end of the body (1).

6. The cement-stabilized crushed stone construction quality testing device according to claim 5, characterized in that, A bearing (84) is fitted on the outer wall of the other end of the drive motor (81). A second fixing plate (85) is provided on one side of the bearing (84). A first fixing plate (83) is provided on one end of the drive motor (81). A round hole is opened on one side of the first fixing plate (83). The bidirectional screw (82) is inserted and connected to the round hole.

7. The cement-stabilized crushed stone construction quality testing device according to claim 3, characterized in that, The bottom end of the limiting frame (9) is fixedly connected to the top end of the body (1). A snap-fit ​​groove is provided on one side of the limiting frame (9), and the snap-fit ​​block (73) slides through the inside of the snap-fit ​​groove.

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