CN218097550U - Testing device for rock mass crack surface friction angle - Google Patents
Testing device for rock mass crack surface friction angle Download PDFInfo
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- CN218097550U CN218097550U CN202222590537.0U CN202222590537U CN218097550U CN 218097550 U CN218097550 U CN 218097550U CN 202222590537 U CN202222590537 U CN 202222590537U CN 218097550 U CN218097550 U CN 218097550U
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- rock mass
- mounting groove
- friction angle
- base
- sliding plate
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Abstract
The application provides a testing device for a friction angle of a rock mass crack surface, which comprises a base and a supporting table, wherein the base is limited with a mounting groove for mounting an adjusting rod, a sliding plate is screwed on the adjusting rod, and the outer wall of the base is provided with scale marks; the supporting table is hinged in the mounting groove, a pointer corresponding to the scale marks is arranged on a rotating shaft of the supporting table, and the bottom surface of the supporting table is constructed into an inclined surface abutted against the top of the sliding plate; wherein, adjust the pole and be used for rotating for the base to drive the slide and slide along the mounting groove, and can make the pointer follow a supporting bench and rotate. The method can ensure the accuracy of the measuring result and has the advantage of good flexibility.
Description
Technical Field
The application relates to the field of rock mass fracture test equipment, in particular to a test device for a rock mass crack surface friction angle.
Background
Rock mass fracture laboratory tests are often accompanied by measurement of the friction angle of the fracture face. During testing, two test pieces are firstly stacked on the rotatable inclined plane, the crack surface formed between the two test pieces is kept parallel to the inclined plane, then the inclined plane is manually rotated until the upper test piece slides relative to the lower test piece, and the crack surface friction angle can be obtained by recording the inclination angle of the critical inclined plane at the moment. However, this mode of operation has the disadvantage that the slope is less flexible leading to inaccurate measurements.
The inventor researches and discovers that the existing testing device for the friction angle of the crack surface has the following defects:
the slope causes inaccurate measurement results due to poor flexibility.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a testing device for a rock mass crack surface friction angle, which can ensure that a measuring result is accurate and has the advantage of good flexibility.
The embodiment of the application is realized as follows:
the application provides a testing arrangement for rock mass crack face friction angle includes:
the adjusting device comprises a base, a sliding plate and a fixing device, wherein the base is limited with a mounting groove for mounting an adjusting rod, the adjusting rod is screwed with the sliding plate, and the outer wall of the base is provided with scale marks;
the supporting table is hinged in the mounting groove, a pointer corresponding to the scale mark is arranged on a rotating shaft of the supporting table, and the bottom surface of the supporting table is constructed into an inclined surface abutted against the top of the sliding plate;
wherein, adjust the pole and be used for rotating for the base to drive the slide and slide along the mounting groove, and can make the pointer follow a supporting bench and rotate.
In an alternative embodiment, the base is configured in its entirety in the shape of a rectangular box open at the top.
In an alternative embodiment, the skid plate is arranged perpendicular to the direction of extension of the mounting slot.
In an alternative embodiment, the slide plate is integrally fittingly snapped into the mounting groove.
In an alternative embodiment, the slide plate is arranged overall perpendicular to the adjusting lever.
In an alternative embodiment, the axis of the rotary shaft is arranged perpendicular to the axis of the adjusting lever.
In an alternative embodiment, the pointer is arranged generally perpendicular to the top surface of the support table.
In an optional embodiment, the movable end of the support platform is provided with a baffle bent towards the mounting groove.
In an alternative embodiment, a placing groove for placing the test piece is arranged on the top surface of the supporting table.
In an alternative embodiment, the outer end of the adjustment lever is provided with a handle.
The beneficial effects of the embodiment of the application are that:
in summary, the present embodiment provides a testing apparatus for rock mass crack surface friction angle, during testing, first stack two test pieces on the top surface of the supporting table, and make the lower test piece fixed on the top surface of the supporting table, simultaneously make the crack surface formed by the two test pieces and the top surface of the supporting table keep parallel, can drive the slide plate to slide in the mounting groove from the movable end of the supporting table towards the fixed end by rotating the adjusting rod, utilize the top of the slide plate to abut against the inclined plane at the bottom of the supporting table, can make the pointer follow the supporting table to rotate synchronously, until the lower test piece takes place the sliding position relative to the lower test piece, at this moment, can obtain the crack surface friction angle through the swing angle of the pointer, this supporting table has the advantage that the angle adjustment flexibility is good, can guarantee that the determination result is accurate.
Drawings
Exemplary embodiments of the present application will now be described in detail with reference to the drawings, with the understanding that the following description of the embodiments is intended to be illustrative, and not limiting of the scope of the application, and in which:
FIG. 1 is a schematic view of a support table according to an embodiment of the present application held in a horizontal position;
FIG. 2 is a schematic view of a support table according to an embodiment of the present application being held in a tilted state;
FIG. 3 is a schematic view of an installation of a support table according to an embodiment of the present application;
figure 4 is a schematic view of a support table according to an embodiment of the present application;
FIG. 5 is a schematic view of a base according to an embodiment of the present application;
reference numerals are as follows:
10. a base;
20. a support table;
30. an upper test piece;
40. a fracture surface;
50. a lower test piece;
11. mounting grooves;
12. adjusting a rod;
13. a slide plate;
14. scale marks;
15. a handle;
16. connecting holes;
21. a rotating shaft;
22. a pointer;
23. a bevel;
24. a baffle plate;
25. and (6) placing a groove.
Detailed Description
At present, when a test for measuring a friction angle of a rock mass fracture surface is performed, two test pieces are firstly stacked on a rotatable inclined surface, the fracture surface formed between the two test pieces is kept parallel to the inclined surface, then the inclined surface is manually rotated until the upper test piece slides relative to the lower test piece, and the friction angle of the fracture surface can be obtained by recording the inclination angle of the critical inclined surface at the moment. However, this mode of operation has the disadvantage that the slope is less flexible leading to inaccurate measurements.
Referring to fig. 1-5, in view of the above, the inventor has designed a testing device for the friction angle of the rock mass fracture surface, which can ensure the accuracy of the measurement result and has the advantage of good flexibility.
Example 1
In this embodiment, a testing arrangement for rock mass crack face friction angle includes:
the adjusting device comprises a base 10, wherein the base 10 is provided with a mounting groove 11 for mounting an adjusting rod 12, a sliding plate 13 is screwed on the adjusting rod 12, and the outer wall of the base 10 is provided with scale marks 14;
a support table 20, wherein the support table 20 is hinged in the mounting groove 11, a pointer 22 corresponding to the scale mark 14 is arranged on a rotating shaft 21 of the support table 20, and the bottom surface of the support table 20 is configured into an inclined surface 23 abutted against the top of the sliding plate 13;
wherein, the adjusting rod 12 is used for rotating relative to the base 10 to drive the sliding plate 13 to slide along the installation groove 11 and enable the pointer 22 to rotate along with the supporting platform 20.
In this embodiment, when the device for testing the friction angle of the rock mass crack surface is used, two test pieces are firstly stacked on the top surface of the supporting table 20, the lower test piece is fixed on the top surface of the supporting table 20, meanwhile, the crack surface 40 formed by the two test pieces is kept parallel to the top surface of the supporting table 20, the sliding plate 13 can be driven to slide towards the fixed end from the movable end of the supporting table 20 in the mounting groove 11 by rotating the adjusting rod 12, the pointer 22 can synchronously rotate along with the supporting table 20 by abutting the top of the sliding plate 13 with the inclined surface 23 at the bottom of the supporting table 20 until the lower test piece slides relative to the lower test piece, at this time, the friction angle of the crack surface 40 can be obtained through the swinging angle of the pointer 22, the supporting table has the advantage of good angle adjustment flexibility, and the accuracy of the measurement result can be ensured.
In this embodiment, optionally, the base 10 is configured as a rectangular box shape with an open top as a whole, the mounting groove 11 is a straight rectangular groove, the adjusting rod 12 is rotatably mounted inside the mounting groove 11 as a whole, the adjusting rod 12 is parallel to the longitudinal direction of the mounting groove 11 as a whole, the outer end of the adjusting rod 12 extends out of the base 10, and a handle 15 is fixedly connected to the outer end of the adjusting rod 12 for convenient operation.
Further, the sliding plate 13 is configured to be rectangular plate-shaped as a whole, and the sliding plate 13 is adaptively clamped inside the mounting groove 11, that is, the bottom surface of the sliding plate 13 is attached to the bottom surface of the mounting groove 11, two side walls of the sliding plate 13 are attached to two side walls of the mounting groove 11, and meanwhile, the sliding plate 13 is vertically arranged inside the mounting groove 11 as a whole, and the sliding plate 13 can be prevented from being deviated or rotated in the sliding process by the cooperation of the sliding plate 13 and the mounting groove 11.
It should be noted that the sliding plate 13 is screwed on the adjusting rod 12, the adjusting rod 12 is arranged perpendicular to the sliding plate 13 as a whole, and when the operating handle 15 rotates the adjusting rod 12, the sliding plate 13 can be driven to slide linearly inside the mounting groove 11.
For the convenience of installation, circular connecting holes 16 are further formed in two side walls of the base 10, the connecting holes 16 are located at one end of the base 10 away from the handle 15, the scale marks 14 are arc scale marks for indicating the rotation angle of the support table 20, and the scale marks 14 are formed on the periphery of the connecting holes 16 and are arranged coaxially with the connecting holes 16.
In this embodiment, optionally, the supporting platform 20 is configured as a right triangle as a whole along the cross section, the rotating shaft 21 is fixedly connected to two sides of the supporting platform 20 and symmetrically arranged on two sides of the supporting platform 20, the axis of the rotating shaft 21 and the axis of the adjusting rod 12 are vertically arranged, the pointer 22 is fixedly connected to the end surface of the rotating shaft 21, the pointer 22 rotates integrally against the outer wall of the base 10, the rotating axis of the pointer 22 and the axis of the rotating shaft 21 are coincident, the pointer 22 and the scale marks 14 are arranged correspondingly, and the rotating angle of the pointer 22 can be directly read by using the scale marks 14.
As an example, the pointer 22 is disposed to be generally perpendicular to the top surface of the support table 20, and when the top surface of the support table 20 is maintained to be horizontal, the pointer 22 is maintained to be vertical, and the scale line 14 indicated by the pointer 22 at this time reads zero scale.
Further, the inclined surface 23 of the support stand 20 faces the slide plate 13, the top of the slide plate 13 slidably abuts against the inclined surface 23, and a baffle plate 24 is provided at the movable end of the support stand 20 so that the baffle plate 24 is bent toward the slide plate 13 as a whole in order to prevent the slide plate 13 from coming off the support stand 20.
In order to facilitate the placement of the test piece, the top surface of the supporting platform 20 is provided with a placement groove 25, during the test, the lower test piece 50 is adaptively clamped inside the placement groove 25, so that the lower test piece 50 can be prevented from sliding, then the upper test piece 30 is stacked above the lower test piece 50, and the contact surface of the upper test piece 30 and the lower test piece 50 forms a crack surface 40 for the test.
According to the testing arrangement for rock mass crack face friction angle of this embodiment, utilize the top of slide and the inclined plane butt of brace table bottom, can drive the slide by the expansion end of brace table towards the stiff end slip in the mounting groove through rotating the regulation pole, can make the pointer follow brace table and rotate in step, until lower part test piece takes place the sliding position for the lower part test piece, at this moment, the swing angle through the pointer can obtain crack face friction angle, this brace table has the advantage that the angle modulation flexibility is good, can guarantee that the testing result is accurate.
While embodiments of the present application have been shown and described above, it should be understood that they have been presented by way of example only, and not limitation, and that various changes, modifications, substitutions and alterations can be made hereto by one of ordinary skill in the art without departing from the scope of the present application.
Claims (10)
1. A testing device for a rock mass fracture surface friction angle is characterized by comprising:
the adjusting device comprises a base, a sliding plate and a fixing device, wherein the base is limited with a mounting groove for mounting an adjusting rod, the adjusting rod is screwed with the sliding plate, and the outer wall of the base is provided with scale marks;
the supporting table is hinged in the mounting groove, a pointer corresponding to the scale mark is arranged on a rotating shaft of the supporting table, and the bottom surface of the supporting table is an inclined surface abutted against the top of the sliding plate;
the adjusting rod is used for rotating relative to the base so as to drive the sliding plate to slide along the mounting groove and enable the pointer to rotate along with the supporting table.
2. The device for testing the frictional angle of a rock mass fracture surface of claim 1,
the base is configured in a rectangular box shape with an open top as a whole.
3. A test device for the friction angle of a rock mass fracture face according to claim 2,
the sliding plate is vertically arranged with the extending direction of the mounting groove.
4. A test device for the friction angle of a rock mass fracture face according to claim 3,
the slide plate is integrally connected in the mounting groove in a clamping mode in a matching mode.
5. A test device for the friction angle of a rock mass fracture face according to claim 4,
the sliding plate is integrally and vertically arranged with the adjusting rod.
6. A test apparatus for the friction angle of a rock mass fracture face as defined in claim 5,
the axis of the rotating shaft and the axis of the adjusting rod are vertically arranged.
7. The device for testing the frictional angle of a rock mass fracture surface of claim 6,
the pointer is arranged to be generally perpendicular to the top surface of the support table.
8. A test device for the friction angle of a rock mass fracture face according to claim 7,
the movable end of the supporting platform is provided with a baffle bent towards the mounting groove.
9. The device for testing the frictional angle of a rock mass fracture surface of claim 8,
and a placing groove for placing a test piece is arranged on the top surface of the supporting platform.
10. A test apparatus for the friction angle of a rock mass fracture face as defined in claim 9,
the outer end of the adjusting rod is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222590537.0U CN218097550U (en) | 2022-09-29 | 2022-09-29 | Testing device for rock mass crack surface friction angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222590537.0U CN218097550U (en) | 2022-09-29 | 2022-09-29 | Testing device for rock mass crack surface friction angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218097550U true CN218097550U (en) | 2022-12-20 |
Family
ID=84455917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222590537.0U Active CN218097550U (en) | 2022-09-29 | 2022-09-29 | Testing device for rock mass crack surface friction angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218097550U (en) |
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2022
- 2022-09-29 CN CN202222590537.0U patent/CN218097550U/en active Active
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