CN219694741U - Clamping mechanism based on triaxial test machine is used - Google Patents
Clamping mechanism based on triaxial test machine is used Download PDFInfo
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- CN219694741U CN219694741U CN202321157747.9U CN202321157747U CN219694741U CN 219694741 U CN219694741 U CN 219694741U CN 202321157747 U CN202321157747 U CN 202321157747U CN 219694741 U CN219694741 U CN 219694741U
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- clamping mechanism
- clamping
- frame
- fixed connection
- push rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 19
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
The utility model belongs to the technical field of detection assistance of a testing machine, in particular to a clamping mechanism based on a triaxial testing machine, wherein the output end of an electric cylinder pushes a push rod, the push rod pushes a pressing pad at the bottom to move downwards, the pressing pad penetrates through a through hole to enter the inside of a positioning frame, axial pressure detection is carried out on rocks placed in the pressing pad, under double extrusion of movable frames at two sides of a clamping part, a retaining plate at the outer part of the movable frame is fully contacted with the outer wall of the rocks, and transverse clamping of the rocks is completed, so that slipping is prevented; the step motor of operation drives the drive shaft and rotates, and the finish grinding piece in the drive shaft drive outside is rotatory, is rectangular form finish grinding piece through with smooth surface looks friction and contradict the outside promotion of movable frame outside fixing base for spacing spring is stretched, under the elastic action, accomplishes the opposite sides or the relative movement of two sets of movable frames, thereby accomplishes the centre gripping effect to not unidimensional rock, and then promotes the application scope of this device.
Description
Technical Field
The utility model belongs to the technical field of detection assistance of a testing machine, and particularly relates to a clamping mechanism for a triaxial-based testing machine.
Background
The high-stress geotechnical true triaxial test machine is an instrument device for researching stress strain characteristics, constitutive relation, strength law and anisotropism of soil in a general stress state, and can be used for performing true triaxial test of hard rock in a high stress state to obtain mechanical strength and deformation characteristics of the rock in the high stress state.
In the rock triaxial tester, a core holder is a core component of the equipment, provides counter force for a sample and bears confining pressure, and the structural rigidity of the core holder directly influences the overall rigidity of the equipment.
For this purpose, a clamping mechanism for a triaxial tester is designed to solve the above problems.
Disclosure of Invention
To solve the problems set forth in the background art. The utility model provides a clamping mechanism based on a triaxial tester, in the use process of the device, an electric cylinder on the inner side of a support frame can be started, the output end of the electric cylinder pushes a push rod, the push rod pushes a pressing pad on the bottom to move downwards, the pressing pad penetrates through a through hole to enter the inside of a positioning frame, axial pressure detection is carried out on rocks placed in the pressing pad, under double extrusion of movable frames on two sides of the clamping part, a withstanding plate on the outer side of the movable frame is fully contacted with the outer wall of the rocks, and transverse clamping of the rocks is completed, so that slipping is prevented. And in the centre gripping in-process, the step motor of operation drives the drive shaft and rotates, and the finish grinding piece in the drive shaft drive outside is rotatory, is rectangular form finish grinding piece through with smooth surface looks friction and conflict movable frame outside promotion to the outside of fixing base for spacing spring is stretched, under the elastic action, accomplishes the opposite sides or the relative movement of two sets of movable frames, thereby accomplishes the centre gripping effect to not unidimensional rock, and then promotes the application scope of this device.
In order to achieve the above purpose, the present utility model provides the following technical solutions: clamping mechanism based on triaxial test machine is used, stop gear includes support frame, electronic jar, push rod, pressure pad and positioning frame, and the internal surface of support frame and one side threaded connection of electronic jar, the output of electronic jar and the top fixed connection of push rod, the bottom of push rod and the top fixed connection of pressure pad, positioning frame's top inner wall and the surface sliding connection of pressure pad, positioning frame's inboard still is provided with clamping part.
As the clamping mechanism for the triaxial tester, the clamping mechanism preferably comprises a fixed seat, a limiting spring, a movable frame and a retaining plate, wherein one side of the fixed seat is fixedly connected with the outer side of a positioning frame, two sides of the limiting spring are respectively and fixedly connected with the surfaces of the opposite sides of the fixed seat and the movable frame, and one end of the retaining plate is fixedly connected with the outer side of the movable frame.
As the clamping mechanism for the triaxial tester, the utility model is preferable, the inner side of the fixed seat is penetrated with the adjusting component, the adjusting component comprises the stepping motor, the driving shaft and the fine grinding block, the stepping motor is in threaded connection with the outer side of the fixed seat, one end of the driving shaft is fixedly connected with a motor shaft of the stepping motor through the coupler, and the middle part of the fine grinding block is fixedly connected with the outer side of the driving shaft.
Preferably, the clamping mechanism for the triaxial test machine is characterized in that the movable frame is arranged to be a smooth surface near the opposite side surface of the fine grinding block.
As a preferable clamping mechanism for the triaxial test machine, the top of the positioning frame is provided with a through hole which is matched with the size of the pressing pad in a penetrating way.
As the clamping mechanism for the triaxial tester, two groups of clamping parts are preferably arranged, and the two groups of clamping parts are symmetrically distributed on one side of the positioning frame.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the electric cylinder at the inner side of the support frame can be started, the output end of the electric cylinder pushes the push rod, the push rod pushes the pressing pad at the bottom to move downwards, the pressing pad penetrates through the through hole to enter the inside of the positioning frame, axial pressure detection is carried out on rocks placed in the pressing pad, under double extrusion of the movable frames at the two sides of the clamping part, the retaining plates at the outer parts of the movable frames are fully contacted with the outer walls of the rocks, and transverse clamping of the rocks is completed, so that slipping is prevented.
2. In the clamping process, the running stepping motor drives the driving shaft to rotate, the driving shaft drives the outer fine grinding blocks to rotate, the strip fine grinding blocks are rubbed with the smooth surface and push the movable frames to the outer side of the outer fixing seat, so that the limit springs are stretched, and the opposite or relative movement of the two groups of movable frames is completed under the elastic action, so that the clamping effect on rocks with different sizes is achieved, and the application range of the device is further improved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a support frame according to the present utility model;
FIG. 3 is a schematic view of a clamping portion according to the present utility model;
FIG. 4 is a schematic diagram of the distribution of the adjusting components in the present utility model;
in the figure:
1. a limiting mechanism; 11. a support frame; 12. an electric cylinder; 13. a push rod; 14. a pressing pad; 15. a positioning frame; 2. a clamping part; 21. a fixing seat; 22. a limit spring; 23. a movable frame; 24. a retaining plate; 3. an adjustment assembly; 31. a stepping motor; 32. a drive shaft; 33. finely grinding the block; 4. a smooth surface; 5. and a through hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1:
a clamping mechanism based on a triaxial tester is characterized in that a plurality of structural rings are arranged, gaps are reserved between every two links, a stand column or a die-casting pad can deform when being pressed, so that the rigidity of a sample is greatly reduced, the frame is high in rigidity and the system is low in rigidity, and a limiting mechanism 1 is added on the basis.
As shown in fig. 1 and 2:
in an alternative embodiment: the limiting mechanism 1 comprises a supporting frame 11, an electric cylinder 12, a push rod 13, a pressing pad 14 and a positioning frame 15, wherein the inner surface of the supporting frame 11 is in threaded connection with one side of the electric cylinder 12, the output end of the electric cylinder 12 is fixedly connected with the top of the push rod 13, the bottom of the push rod 13 is fixedly connected with the top of the pressing pad 14, the inner wall of the top of the positioning frame 15 is in sliding connection with the outer surface of the pressing pad 14, the inner side of the positioning frame 15 is further provided with clamping parts 2, the clamping parts 2 are provided with two groups, the two groups of clamping parts 2 are symmetrically distributed on one side of the positioning frame 15, and the top of the positioning frame 15 is penetrated and provided with through holes 5 which are matched with the pressing pad 14 in size.
In this embodiment: the electric cylinder 12 on the inner side of the supporting frame 11 can be started, the output end of the electric cylinder 12 pushes the push rod 13, the push rod 13 pushes the pressing pad 14 on the bottom to move downwards, the pressing pad 14 penetrates through the through hole 5 to enter the positioning frame 15, axial pressure detection is carried out on rocks placed in the positioning frame, under double extrusion of the movable frames 23 on the two sides of the clamping part 2, the abutting plates 24 on the outer sides of the movable frames 23 are fully contacted with the outer walls of the rocks, and transverse clamping of the rocks is completed, so that slipping is prevented.
Further, the method comprises the following steps:
as shown in fig. 1, 3 and 4:
in an alternative embodiment: the clamping part 2 comprises a fixed seat 21, a limit spring 22, a movable frame 23 and a retaining plate 24, one side of the fixed seat 21 is fixedly connected with the outer side of the positioning frame 15, two sides of the limit spring 22 are fixedly connected with the opposite side surfaces of the fixed seat 21 and the movable frame 23 respectively, one end of the retaining plate 24 is fixedly connected with the outer side of the movable frame 23, an adjusting assembly 3 is arranged on the inner side of the fixed seat 21 in a penetrating mode, the adjusting assembly 3 comprises a stepping motor 31, a driving shaft 32 and a finish grinding block 33, the stepping motor 31 is in threaded connection with the outer side of the fixed seat 21, one end of the driving shaft 32 is fixedly connected with a motor shaft of the stepping motor 31 through a coupler, the middle portion of the finish grinding block 33 is fixedly connected with the outer side of the driving shaft 32, and the opposite side surface of the movable frame 23, which is close to the finish grinding block 33, is provided with a smooth surface 4.
In this embodiment: in the clamping process, the running stepping motor 31 drives the driving shaft 32 to rotate, the driving shaft 32 drives the fine grinding block 33 on the outer side to rotate, the fine grinding block 33 in a strip shape is rubbed with the smooth surface 4 and props against the movable frame 23 to push the outer side of the outer side fixing seat 21, so that the limiting spring 22 is stretched, and the opposite or relative movement of the two groups of movable frames 23 is completed under the elastic action, so that the clamping effect on rocks with different sizes is completed, and the application range of the device is further promoted.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. Clamping mechanism based on triaxial test machine is used, its characterized in that: stop gear (1) include support frame (11), electronic jar (12), push rod (13), pressure pad (14) and positioning frame (15), the internal surface of support frame (11) with one side threaded connection of electronic jar (12), the output of electronic jar (12) with the top fixed connection of push rod (13), the bottom of push rod (13) with the top fixed connection of pressure pad (14), the top inner wall of positioning frame (15) with the surface sliding connection of pressure pad (14), the inboard of positioning frame (15) still is provided with clamping part (2).
2. The clamping mechanism for a triaxial tester according to claim 1, characterized in that: clamping part (2) are including fixing base (21), spacing spring (22), movable frame (23) and keep out board (24), one side of fixing base (21) with the outside fixed connection of locating frame (15), the both sides of spacing spring (22) respectively with fixing base (21) with opposite side surface fixed connection of movable frame (23), the one end of keep out board (24) with the outside fixed connection of movable frame (23).
3. The clamping mechanism for a triaxial tester according to claim 2, characterized in that: the inside of fixing base (21) runs through and is provided with adjusting part (3), adjusting part (3) are including step motor (31), drive shaft (32) and correct grinding piece (33), step motor (31) threaded connection is in the outside of fixing base (21), the one end of drive shaft (32) pass through the shaft coupling with the motor shaft fixed connection of step motor (31), the middle part of correct grinding piece (33) with the outside fixed connection of drive shaft (32).
4. A clamping mechanism for a triaxial tester according to claim 3, characterised in that: the movable frame (23) is provided as a smooth surface (4) near the opposite side surface of the fine grinding block (33).
5. The clamping mechanism for a triaxial tester according to claim 1, characterized in that: the top of the positioning frame (15) is provided with a through hole (5) with the size matched with that of the pressing pad (14).
6. The clamping mechanism for a triaxial tester according to claim 2, characterized in that: the clamping parts (2) are provided with two groups, and the two groups of clamping parts (2) are symmetrically distributed on one side of the positioning frame (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321157747.9U CN219694741U (en) | 2023-05-15 | 2023-05-15 | Clamping mechanism based on triaxial test machine is used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321157747.9U CN219694741U (en) | 2023-05-15 | 2023-05-15 | Clamping mechanism based on triaxial test machine is used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219694741U true CN219694741U (en) | 2023-09-15 |
Family
ID=87964708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321157747.9U Active CN219694741U (en) | 2023-05-15 | 2023-05-15 | Clamping mechanism based on triaxial test machine is used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219694741U (en) |
-
2023
- 2023-05-15 CN CN202321157747.9U patent/CN219694741U/en active Active
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