Compression-resistant rebound modulus testing device

Abstract

A compressive resilience modulus testing device comprises a rack, a clamping assembly arranged in the rack and used for clamping a workpiece, dial indicator devices arranged on the two sides of the clamping assembly and a supporting disc used for supporting the dial indicator devices, and the clamping assembly comprises a fixed base plate and a sliding jacking column arranged above the fixed base plate in a sliding mode. The dial indicator device is rotatably arranged relative to the machine frame, the auxiliary feeding device comprises a left base plate and a right base plate, stepped holes are formed in the left base plate and the right base plate, the stepped holes comprise a first hole and a second hole, the first hole is matched with the fixed chassis, and the second hole is matched with the dial indicator device. The second hole is matched with a cylindrical workpiece, and the left base plate is detachably connected with the right base plate.

Description

Technical Field

[0001] The present application relates to the field of highway base engineering construction, and in particular to a compressive rebound modulus test device. Background Art

[0002] During the construction of highway base projects, it is necessary to take core samples of the road surface for testing, among which the compressive rebound modulus test is an essential test step. The current compressive rebound modulus test device usually includes a frame, a clamping device, and a micrometer device. At present, when conducting the test, it is first necessary to manually move the cylindrical specimen to the clamping device for clamping, and then move the micrometer device. When conducting the test, when placing the micrometer, it should be noted that each meter is symmetrical about the center of the specimen. The purpose is to control the reading error of the two micrometers to less than 50% to ensure the accuracy of data acquisition. After the test is completed, the micrometer is prevented from causing motion interference to the workpiece. Therefore, the micrometer needs to be moved after each test, and it is repeated over and over again. Each alignment will consume a lot of energy, and there is also a deviation phenomenon. In addition, the cylindrical workpiece is also heavy. At present, it is manually carried during loading and unloading, which is more physically demanding. In view of this, technical personnel in this field need to make improvements to the test device, especially to set an auxiliary device that facilitates the movement of the workpiece and the alignment of the micrometer. Utility Model Content

[0003] The main purpose of the present application is to provide a compressive rebound modulus test device, which is convenient for moving the workpiece and facilitating the centering of the micrometer.

[0004] In order to achieve the above-mentioned objectives, in the first aspect, the present application provides a compressive rebound modulus testing device, comprising a frame, a clamping assembly arranged in the frame for clamping a workpiece, a micrometer device arranged on both sides of the clamping assembly, and a support plate for supporting the micrometer device, the clamping assembly comprising a fixed chassis, a sliding top column slidably arranged above the fixed chassis, the micrometer device is rotatably arranged relative to the frame, and also comprises an auxiliary feeding device, the auxiliary feeding device comprises a left pad and a right pad, the left pad and the right pad are both provided with step holes, the step holes comprise a first hole and a second hole, the first hole is adapted to the fixed chassis, the second hole is adapted to the cylindrical workpiece, and the left pad and the right pad are detachably connected.

[0005] A further improvement is that the micrometer device includes a weight, a bracket fixedly arranged on the weight, and a meter body fixedly arranged on the bracket, and the weight is rotatably arranged with the frame.

[0006] A further improvement is that the support plate is detachably connected to the watch body, a connection hole is provided on the support plate, and a detection connection rod is provided on the watch body, and the detection connection rod passes through the connection hole and is fixed by a fastener.

[0007] A further improvement is that a splicing structure is provided between the left pad and the right pad.

[0008] As a further improvement, the splicing structure includes an inserting groove arranged on the left pad, and an inserting protrusion arranged on the right pad and matching with the inserting groove, and the groove depth direction of the inserting groove extends along the horizontal direction.

[0009] A further improvement is that rolling components are also provided on the left pad and the right pad.

[0010] A further improvement is that the rolling component includes a through hole opened on the left pad or the right pad, a roller rotatably arranged in the through hole, an ear plate is fixedly arranged on the bottom of the left pad and the right pad, the axle of the roller is connected to the ear plate, and a portion of the roller is exposed from the through hole.

[0011] A further improvement is that the left pad and the right pad are integrally formed of SMC material.

[0012] A further improvement is that a connecting disk is fixedly provided on the frame, and the weight is rotatably connected to the connecting disk.

[0013] The utility model provides a compressive rebound modulus testing device, which has the beneficial effect compared with the prior art, by providing a detachably connected left pad and a right pad, which are spliced ​​to form a complete step hole, which cooperates with the workpiece and the fixed chassis, thereby ensuring that the workpiece is aligned with the center of the fixed chassis each time it is installed, and then the micrometer is changed from the original moving mode to the rotating mode, and the rotation is the avoidance when unloading and loading materials, thereby ensuring that the micrometer can be accurately centered each time, and in addition, rolling components are provided on the left pad and the right pad, thereby changing the original carrying to sliding along the pad, reducing friction and saving labor in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0015] Figure 1 It is a schematic diagram of the utility model;

[0016] Figure 2It is a top view of the left pad and the right pad;

[0017] Figure 3 It is a cross-sectional view of the left pad and the right pad.

[0018] Among them: 1. frame, 2. weight, 3. meter body, 4. bracket, 5. detection connecting rod, 6. support plate, 7. fixed chassis; 8. sliding top column; 9. left pad; 10. right pad; 11. first hole; 12. second hole; 13. roller; 14. ear plate. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0023] In addition, the term "plurality" shall mean two or more.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] like Figure 1-Figure 3 As shown, a compressive rebound modulus test device includes a frame 1, a clamping assembly arranged in the frame 1 for clamping a workpiece, a micrometer device arranged on both sides of the clamping assembly, and a support plate 6 for supporting the micrometer device, the clamping assembly includes a fixed chassis 7, a sliding top column 8 slidably arranged above the fixed chassis 7, the micrometer device is rotatably arranged relative to the frame 1, and also includes an auxiliary feeding device, the auxiliary feeding device includes a left pad 9 and a right pad 10, the left pad 9 and the right pad 10 are both provided with step holes, the step holes include a first hole 11 and a second hole 12, the first hole 11 is adapted to the fixed chassis 7, the second hole 12 is adapted to the cylindrical workpiece, and the left pad 9 and the right pad 10 are detachably connected.

[0026] Preferably, in this embodiment, the micrometer device includes a weight 2, a bracket 4 fixedly mounted on the weight 2, and a meter body 3 fixedly mounted on the bracket 4. The weight 2 is rotatably arranged with the frame 1. By providing the weight 2, the micrometer can be ensured to have high stability during operation.

[0027] Preferably, the support plate 6 is detachably connected to the watch body 3, a connecting hole is opened on the support plate 6, and the watch body 3 has a detection connecting rod 5, and the detection connecting rod 5 passes through the connecting hole and is fixed by fasteners. It should be noted that when the support plate 6 is loading, it is located below the left pad 9 and the right pad 10 and is aligned with the step hole. After the loading is completed and the left pad 9 and the right pad 10 are removed, it moves upward along the outer wall of the cylindrical specimen and is connected to the test connecting rod on the watch body 3. Since the support plate 6 is connected with a connecting hole, it can be aligned and positioned.

[0028] In order to ensure the stability of the workpiece when it moves, a splicing structure is provided between the left pad 9 and the right pad 10, and the splicing structure includes an inserting groove provided on the left pad 9, and an inserting protrusion provided on the right pad 10 and matching with the inserting groove, and the groove depth direction of the inserting groove extends along the horizontal direction.

[0029] In addition, preferably, in order to reduce the friction when the workpiece moves, a rolling assembly is also provided on the left pad 9 and the right pad 10. Specifically, the rolling assembly includes a through hole opened on the left pad 9 or the right pad 10, and a roller 13 rotatably arranged in the through hole. An ear plate 14 is fixedly arranged at the bottom of the left pad 9 and the right pad 10, and the axle of the roller 13 is connected to the ear plate 14, and a portion of the roller 13 is exposed from the through hole.

[0030] Preferably, the left pad 9 and the right pad 10 are formed in one piece from SMC material. What is needed for the longevity of SMC is that it has a strength no less than that of steel, and it is made by molding, so it can be mass-produced. The splicing structure, step holes, etc. thereon can be designed by molds, and there is no need for processing after molding, which makes manufacturing convenient.

[0031] Preferably, a connecting disk is fixedly provided on the frame 1, and the weight 2 is rotatably connected to the connecting disk.

[0032] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compressive rebound modulus test device, comprising a frame, a clamping assembly arranged in the frame for clamping a workpiece, a dial gauge device arranged on both sides of the clamping assembly, and a support plate for supporting the dial gauge device, wherein the clamping assembly comprises a fixed chassis and a sliding top column slidably arranged above the fixed chassis, characterized in that: The micrometer device is rotatably arranged relative to the frame, and also includes an auxiliary feeding device, the auxiliary feeding device includes a left pad and a right pad, the left pad and the right pad are both provided with step holes, the step holes include a first hole and a second hole, the first hole is adapted to the fixed chassis, the second hole is adapted to the cylindrical workpiece, and the left pad and the right pad are detachably connected.

2. A compressive resilience modulus test device as claimed in claim 1, characterized in that: The micrometer device comprises a weight, a bracket fixedly arranged on the weight, and a meter body fixedly arranged on the bracket. The weight is rotatably arranged with the frame.

3. A compressive resilience modulus test device as claimed in claim 2, characterized in that: The support plate is detachably connected to the meter body, a connection hole is provided on the support plate, and a detection connection rod is provided on the meter body. The detection connection rod passes through the connection hole and is fixed by a fastener.

4. A compressive resilience modulus test device as claimed in claim 1, characterized in that: A splicing structure is provided between the left pad and the right pad.

5. A compressive resilience modulus test device as claimed in claim 4, characterized in that: The splicing structure includes an inserting groove arranged on the left pad, and an inserting protrusion arranged on the right pad and matched with the inserting groove, and the groove depth direction of the inserting groove extends along the horizontal direction.

6. A compressive resilience modulus test device as claimed in claim 1, characterized in that: The left pad and the right pad are also provided with rolling components.

7. A compressive resilience modulus test device as claimed in claim 6, characterized in that: The rolling component includes a through hole opened on the left pad or the right pad, a roller rotatably arranged in the through hole, an ear plate fixedly arranged at the bottom of the left pad and the right pad, the axle of the roller is connected to the ear plate, and part of the roller is exposed from the through hole.

8. A compressive resilience modulus test device as claimed in claim 6 or 7, characterized in that: The left pad and the right pad are integrally formed of SMC material.

9. A compressive resilience modulus test device as claimed in claim 2, characterized in that: A connecting disk is fixedly arranged on the frame, and the weight is rotatably connected to the connecting disk.

Images