Stress applying device suitable for micro-deformation detection process

Abstract

The utility model relates to a stress application device suitable for a micro-deformation detection process, and relates to the technical field of detection devices, and the stress application device comprises a ball row and an abutting structure; the ball row comprises a supporting plate, a fixing frame and an abutting plate, one end of the fixing frame is in sliding connection with the supporting plate, the other end of the fixing frame is in sliding connection with the abutting plate, a plurality of rolling shafts are arranged in an inner cavity of the fixing frame, the rolling shafts are rotationally connected with the fixing frame, and the rolling shafts abut against the supporting plate and the abutting plate; the abutting structure comprises an abutting seat and a connecting plate, the abutting seat abuts against the jack, the abutting seat is provided with a connecting groove, the connecting plate rotates along the connecting groove, and the connecting plate abuts against the fixing frame. And thus, more accurate data can be obtained.

Description

Technical Field

[0001] The present application relates to the technical field of detection devices, and in particular to a stress application device suitable for a micro-deformation detection process. Background Art

[0002] Rock is a common stone in the wild. Different types of rocks have different properties. Rocks have different hardness and will produce a series of different physical and chemical properties when they come into contact with water. It will cause the volume of the rock to expand and the mechanical properties to change. Therefore, it is necessary to conduct a variety of related tests on the demonstration to determine the relevant properties of the rock.

[0003] In the related technology, among the various tests conducted on rocks, there is a compression test, which can perform corresponding tests on the hardness of rocks, etc. When performing the compression test, the operator first fixes the rock in a corresponding position, and then squeezes the rock through devices such as jacks to obtain the rock's compression data.

[0004] Regarding the above-mentioned related technologies, since the surface of the rock has a certain inclination, when the jack squeezes the rock, it may cause uneven force, which will cause certain errors in the data of the rock's compressive effect, thereby affecting the accuracy of the data. Utility Model Content

[0005] In order to obtain more accurate data when testing the rock's compression resistance, the rock is subjected to normal force, and the present application provides a stress application device suitable for the micro-deformation detection process.

[0006] The present application provides a stress application device suitable for micro-deformation detection process, which adopts the following technical solution:

[0007] A stress applying device suitable for a micro-deformation detection process comprises a ball row and an abutment structure; the ball row comprises a support plate, a fixed frame and an abutment plate, one end of the fixed frame is slidably connected to the support plate, and the other end is slidably connected to the abutment plate, a plurality of rolling shafts are arranged in the inner cavity of the fixed frame, the rolling shafts are rotatably connected to the fixed frame, and the rolling shafts abut against the support plate and the abutment plate; the abutment plate abuts against a jack

[0008] The abutment structure includes an abutment seat and a connecting plate. The abutment seat abuts against the jack. The abutment seat is provided with a connecting groove. The connecting plate rotates along the connecting groove. The connecting plate abuts against the fixing frame.

[0009] By adopting the above technical solution, when conducting the experiment, the operator first places the abutment plate on the plane to be tested of the rock, and then slides the fixed frame and the support plate. The support plate abuts against the rock surface, and the abutment plate provides support for the placement of the abutment seat. The abutment seat is provided with a connecting groove, and the connecting groove provides support for the rotation of the connecting plate, thereby adjusting the angle between the connecting plate and the support plate. The connecting plate can be connected to the jack, so that the rock is squeezed by the normal force, thereby ensuring the stability and accuracy of the test data.

[0010] Optionally, the top wall and the bottom wall of the fixed frame are provided with a positioning groove, the length direction of the positioning groove is perpendicular to the axial direction of the rolling shaft, the inner cavity of the positioning groove is provided with a sliding block, the sliding block slides along the positioning groove, and the sliding block is fixedly connected to the support plate and / or the abutment plate.

[0011] By adopting the above technical solution, the setting of the positioning groove can limit the sliding direction of the sliding block, and the sliding block and the support plate and / or the abutment plate are fixedly connected, thereby limiting the sliding direction of the support plate and / or the abutment plate, and preventing the support plate and / or the abutment plate from detaching from the fixed frame.

[0012] Optionally, the abutment seat has a plurality of positioning holes evenly distributed around the circumference, the positioning holes are connected to the inner cavity of the connecting groove, a positioning bolt is provided in the positioning hole, the positioning bolt passes through the positioning hole and is threadedly connected to the abutment seat, and the positioning bolt is used to fix the connecting plate.

[0013] By adopting the above technical solution, the setting of the positioning hole can provide support for the installation of the positioning bolt. The end of the positioning bolt abuts against the connecting plate, thereby fixing the position between the connecting plate and the abutment seat, avoiding angular displacement between the connecting plate and the abutment seat when the abutment plate is subjected to force.

[0014] Optionally, an abutment block is provided at the end of the positioning bolt, and the abutment block abuts against the connecting plate.

[0015] By adopting the above technical solution and setting the abutment block, the gaps between the positioning bolts and the connecting plates at different angles can be blocked, thereby further ensuring the stability of the angle limit of the connecting plates and ensuring that the rock is subjected to normal force.

[0016] Optionally, the abutment seat is circumferentially evenly distributed with connecting components on the end surface close to the abutment plate, and the connecting components include a telescopic rod and a vertical plate, one end of the telescopic rod is fixedly connected to the abutment seat, and the other end is fixedly connected to the vertical plate, and the vertical plate abuts against the fixing frame.

[0017] By adopting the above technical solution, the telescopic rod can adjust the position of the vertical plate, and then the vertical plate can abut against the side wall of the fixing frame, and the position of the abutment seat can be fixed from multiple positions to avoid the abutment plate tilting and causing the position of the abutment seat to change.

[0018] Optionally, a friction pad is provided on the end surface of the vertical plate close to the fixing frame, and the friction pad is fixedly connected to the vertical plate.

[0019] By adopting the above technical solution, the friction pad can block the gap between the vertical plate and the fixing frame, and at the same time enhance the connection stability between the vertical plate and the fixing frame, thereby providing a more stable support effect for the abutment seat.

[0020] Optionally, a receiving groove is provided on the end surface of the connecting plate away from the abutment seat, and the receiving groove is used to accommodate a jack. A plurality of locking members are evenly distributed circumferentially in the receiving groove, and the locking members include a positioning rod and an abutment block. The positioning rod is slidably connected to the connecting plate, and the abutment block is fixedly connected to the positioning rod.

[0021] By adopting the above technical solution, the setting of the accommodating groove can provide an accommodating effect for the jack. The operator changes the position of the abutment block by sliding the positioning rod, and at the same time enables the abutment block to abut the jack, thereby fixing the connecting plate to the jack, thereby ensuring the stability of the device connection.

[0022] Optionally, the locking member further includes a top screw, which is threadably connected to the positioning rod, and the top screw passes through the positioning rod and abuts against the connecting plate.

[0023] By adopting the above technical solution and setting the top screw, the position of the positioning rod can be fixed, thereby ensuring that the abutment block can stably fix the jack, thereby ensuring the connection stability between the connecting plate and the jack.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By setting the ball row, abutment seat and connecting plate, it can provide normal pressure to different inclined surfaces of the rock, thereby ensuring the stability of the rock compression test;

[0026] 2. By setting the positioning component, the angle and connection stability between the connecting plate and the abutment seat can be guaranteed;

[0027] 3. By providing a connection assembly, the connection stability between the fixing frame and the abutment seat can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0029] Figure 2 is a schematic diagram of the connection slot structure;

[0030] Figure 3 yes Figure 2 The enlarged schematic diagram of part A in the middle;

[0031] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0032] Figure 5 yes Figure 4 Enlarged schematic diagram of part B in the middle.

[0033] Attached figures: 1. ball row; 11. support plate; 12. rolling assembly; 121. fixed frame; 122. rolling shaft; 123. positioning groove; 13. abutment plate; 2. abutment structure; 21. abutment seat; 22. connecting plate; 23. positioning hole; 24. positioning assembly; 241. positioning bolt; 242. locking block; 25. connecting assembly; 251. telescopic rod; 252. vertical plate; 253. friction pad; 26. receiving groove; 27. locking piece; 271. positioning rod; 272. top screw; 273. abutment block. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] The embodiment of the present application discloses a stress applying device suitable for a micro-deformation detection process.

[0036] Reference Figure 1 A stress applying device suitable for a micro-deformation detection process comprises a ball row 1 and an abutment structure 2.

[0037] Example 1

[0038] Reference Figure 1 The ball row 1 includes a support plate 11, a rolling assembly 12 and an abutment plate 13. The support plate 11, the rolling assembly 12 and the abutment plate 13 are arranged in sequence from bottom to top along a direction perpendicular to the top surface of the rock.

[0039] Reference Figure 1 In this embodiment, the support plate 11 is a rectangular plate, and the support plate 11 abuts against the top wall of the rock.

[0040] Reference Figure 1The rolling assembly 12 includes a fixed frame 121 and a rolling shaft 122. In this embodiment, the fixed frame 121 is preferably a rectangular frame. The top wall and the bottom wall of the fixed frame 121 are each provided with two positioning grooves 123. The length directions of the positioning grooves 123 are consistent. In this embodiment, the positioning grooves 123 are preferably T-shaped grooves. The inner cavity of the positioning groove 123 is provided with a sliding block, and the sliding block can slide along the length direction of the positioning groove 123. There are multiple rolling shafts 122, and the rolling shafts 122 are located in the inner cavity of the fixed frame 121. The multiple rolling shafts 122 are arranged in sequence along the length direction of the positioning groove 123. The axial direction of the rolling shaft 122 is perpendicular to the length direction of the positioning groove 123, and both ends of the rolling shaft 122 are rotatably connected to the fixed frame 121 by bearing connection.

[0041] Reference Figure 1 In this embodiment, the abutment plate 13 is preferably a rectangular plate, and both the abutment plate 13 and the support plate 11 abut against the side wall of the rolling shaft 122, and both the abutment plate 13 and the support plate 11 are fixedly connected to the sliding block by screws.

[0042] Reference Figure 1 The abutment structure 2 includes an abutment seat 21 and a connection plate 22. In this embodiment, the abutment seat 21 is preferably a rectangular block, and the abutment seat 21 abuts against the end surface of the abutment plate 13 away from the fixed frame 121. The end surface of the abutment seat 21 away from the abutment plate 13 is provided with a connection groove. In this embodiment, the connection groove is preferably a spherical groove. The inner cavity of the connection groove is provided with a connection block. In this embodiment, the connection block is preferably a spherical block, and the connection block can rotate in the inner cavity of the connection groove. The connection block is fixedly connected to the connection plate 22 by welding.

[0043] The implementation principle of Example 1 is: the operator first places the ball row 1 on the surface of the rock, abuts the support plate 11 against the surface of the rock, and then slides the fixed frame 121 and the abutment plate 13. The rolling shaft 122 can reduce the friction effect between the fixed frame 121 and the support plate 11 and the abutment plate 13.

[0044] When the abutment plate 13 reaches a suitable position, the operator places the abutment seat 21 on the surface of the abutment plate 13, and then rotates the angles of the connection block and the connection plate 22 to connect the connection plate 22 to the corresponding structure of the jack, and performs corresponding inspections.

[0045] Example 2

[0046] The difference between this embodiment and embodiment 1 is that in embodiment 1, the abutment structure 2 is directly placed on the surface of the abutment plate 13, and the jack acts directly on the connecting plate 22, or there is a certain looseness, thereby affecting the inspection effect on the rock.

[0047] Reference Figure 1 , Figure 2 and Figure 3The side wall of the abutment seat 21 is evenly distributed with a plurality of positioning holes 23 along the axial direction of the connecting groove. In this embodiment, the positioning holes 23 are preferably threaded holes. The positioning holes 23 are horizontally arranged, and the axial direction of the positioning holes 23 points to the axis of the connecting groove. The positioning holes 23 are connected to the connecting groove.

[0048] Reference Figure 1 , Figure 2 and Figure 3 Each positioning hole 23 has a positioning assembly 24 in its inner cavity. The positioning assembly 24 includes a positioning bolt 241 and a locking block 242. The positioning bolt 241 is passed through the positioning hole 23 and is threadedly connected to the abutment seat 21. In this embodiment, the locking block 242 has a certain elasticity and is rotatably connected to the locking bolt by a bearing connection.

[0049] Reference Figure 1 , Figure 4 and Figure 5 The end surface of the abutment seat 21 close to the abutment plate 13 is evenly distributed with multiple connecting components 25 along the axial direction of the connecting groove. In this embodiment, the number of connecting components 25 is preferably four. The connecting component 25 includes a telescopic rod 251 and a vertical plate 252. The telescopic rod 251 is horizontally arranged, and the telescopic direction of the telescopic rod 251 is horizontal and points to the axial direction of the abutment seat 21. The telescopic rod 251 is fixedly connected to the abutment seat 21 by screw fixing. The vertical plate 252 is vertically arranged, and the vertical plate 252 is fixedly connected to one end of the telescopic rod 251 away from the abutment seat 21 by screw fixing. The end surface of the vertical plate 252 close to the telescopic rod 251 abuts against the abutment plate 13, and the end surface is provided with a friction pad 253, and the friction pad 253 is fixedly connected to the vertical plate 252 by screw fixing.

[0050] Reference Figure 1 , Figure 4 and Figure 5 The top wall of the connecting plate 22 is provided with a receiving groove 26 in a direction perpendicular to the top wall. The connecting plate 22 is evenly distributed with a plurality of sliding grooves in the circumferential direction along the opening direction of the receiving groove 26. The inner cavities of the sliding groove and the receiving groove 26 are connected. The inner cavity of each sliding groove is provided with a locking member 27. The locking member 27 includes a positioning rod 271, a top screw 272 and an abutment block 273. The positioning rod 271 can extend the multi-scale analysis sliding of the sliding groove. The top screw 272 is threadedly connected to the positioning rod 271, and the top screw 272 passes through the positioning rod 271 and abuts against the connecting plate 22. In this embodiment, the abutment block 273 has a certain elasticity, and the abutment block 273 is fixedly connected to the positioning rod 271 by screws.

[0051] The implementation principle of the stress force applying device suitable for the micro-deformation detection process in the embodiment of the present application is as follows: the operator first adjusts the position of the vertical plate 252 through the telescopic rod 251, and makes the vertical plate 252 abut against the side wall of the fixing frame to complete the connection between the abutment seat 21 and the fixing frame. Then, the position of the abutment block 273 is adjusted through the positioning rod 271, and the abutment block 273 abuts against the jack to complete the connection between the connecting plate 22 and the jack.

[0052] The angle between the abutting seat 21 and the connecting plate 22 is adjusted, and then the angle between the connecting plate 22 and the abutting seat 21 is fixed by the positioning bolts 241 .

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stress applying device suitable for micro-deformation detection process, characterized in that: The invention comprises a ball row (1) and an abutment structure (2); the ball row (1) comprises a support plate (11), a fixed frame (121) and an abutment plate (13); one end of the fixed frame (121) is slidably connected to the support plate (11), and the other end is slidably connected to the abutment plate (13); a plurality of rolling shafts (122) are provided in the inner cavity of the fixed frame (121); the rolling shafts (122) are rotatably connected to the fixed frame (121), and the rolling shafts (122) abut against the support plate (11) and the abutment plate (13); the abutment plate (13) abuts against a jack The abutment structure (2) comprises an abutment seat (21) and a connecting plate (22); the abutment seat (21) abuts against the jack; the abutment seat (21) is provided with a connecting groove; the connecting plate (22) rotates along the connecting groove; and the connecting plate (22) abuts against the fixing frame.

2. A stress applying device suitable for micro-deformation detection process according to claim 1, characterized in that: The top wall and the bottom wall of the fixed frame (121) are both provided with a positioning groove (123), the length direction of the positioning groove (123) is perpendicular to the axial direction of the rolling shaft (122), the inner cavity of the positioning groove (123) is provided with a sliding block, the sliding block slides along the positioning groove (123), and the sliding block is fixedly connected to the support plate (11) and / or the abutment plate (13).

3. A stress applying device suitable for micro-deformation detection process according to claim 2, characterized in that: The abutment seat (21) is evenly distributed with a plurality of positioning holes (23) in the circumferential direction. The positioning holes (23) are in communication with the inner cavity of the connection groove. Positioning bolts (241) are arranged in the positioning holes (23). The positioning bolts (241) pass through the positioning holes (23) and are threadedly connected to the abutment seat (21). The positioning bolts (241) are used to fix the connection plate (22).

4. A stress applying device suitable for micro-deformation detection process according to claim 3, characterized in that: An abutment block (273) is provided at the end of the positioning bolt (241), and the abutment block (273) abuts against the connecting plate (22).

5. A stress applying device suitable for micro-deformation detection process according to claim 1, characterized in that: The end surface of the abutment seat (21) close to the abutment plate (13) is uniformly distributed with connection components (25) in the circumferential direction. The connection components (25) include a telescopic rod (251) and a vertical plate (252). One end of the telescopic rod (251) is fixedly connected to the abutment seat (21), and the other end is fixedly connected to the vertical plate (252). The vertical plate (252) abuts against a fixing frame.

6. A stress applying device suitable for micro-deformation detection process according to claim 5, characterized in that: A friction pad (253) is provided on the end surface of the vertical plate (252) close to the fixing frame, and the friction pad (253) is fixedly connected to the vertical plate (252).

7. A stress applying device suitable for micro-deformation detection process according to claim 1, characterized in that: The end surface of the connecting plate (22) away from the abutment seat (21) is provided with a receiving groove (26), the receiving groove (26) is used to receive the jack, a plurality of locking members (27) are evenly distributed in the circumferential direction of the receiving groove (26), the locking members (27) include a positioning rod (271) and an abutment block (273), the positioning rod (271) is slidably connected to the connecting plate (22), and the abutment block (273) is fixedly connected to the positioning rod (271).

8. A stress applying device suitable for micro-deformation detection process according to claim 7, characterized in that: The locking member (27) further comprises a top screw (272), wherein the top screw (272) is threadedly connected to the positioning rod (271), and the top screw (272) passes through the positioning rod (271) and then abuts against the connecting plate (22).

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