CN114184463A - Three-way mutual-buckling rolling-sliding type connecting mechanism and connecting method of true triaxial rock sample clamping plate - Google Patents
Three-way mutual-buckling rolling-sliding type connecting mechanism and connecting method of true triaxial rock sample clamping plate Download PDFInfo
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- CN114184463A CN114184463A CN202111561661.8A CN202111561661A CN114184463A CN 114184463 A CN114184463 A CN 114184463A CN 202111561661 A CN202111561661 A CN 202111561661A CN 114184463 A CN114184463 A CN 114184463A
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- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
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Abstract
The three-way mutual buckling rolling-sliding type connecting mechanism and the connecting method of the true triaxial rock sample clamping plate comprise guide rail combinations I to IV. The guide rail combination I consists of a main guide rail along the X direction and two auxiliary guide rails along the Y direction, and the side surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails; the guide rail combination II consists of a main guide rail along the Y direction and two auxiliary guide rails along the Z direction, and the top surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails; the guide rail combination III consists of a main guide rail along the Z direction and two auxiliary guide rails along the X direction, and the top surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails; the guide rail combination IV consists of a main guide rail along the Z direction and two auxiliary guide rails along the X direction, the side surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails, and the bottom ends of the main guide rails of the guide rail combinations III and IV are provided with limit plates; each guide rail is composed of a slide block, a slide groove and a ball. The invention realizes the rolling-sliding type connection of the six mutually buckled clamping plates of the true triaxial sample in three directions, is convenient to install and disassemble, and greatly reduces the frictional resistance generated by the mutual sliding of the clamping plates in the test process.
Description
Technical Field
The invention belongs to the technical field of rock mechanics tests, and particularly relates to a three-way mutual-buckling rolling-sliding type connecting mechanism and a connecting method of a true triaxial rock sample clamping plate.
Background
In order to clarify the mechanical properties of deep engineering rocks in a true triaxial stress field and reveal the rock fracture evolution mechanism under the true triaxial stress state and stress path change caused by engineering excavation, domestic and foreign scholars gradually start to develop rock true triaxial test research. The installation of a true triaxial rock test piece is an important content of a true triaxial test, when the true triaxial test machine of a 'three-steel type' is adopted to carry out the test, 6 clamping plates are used for fixing the test piece, and the connection mode among the clamping plates has important influence on the accuracy and reliability of the test result.
At present, most of true triaxial rock sample splints have no connecting mechanism, so that the rock sample splints are easy to fall off after the loading stress is removed; although some students develop some connecting mechanisms of true triaxial rock sample clamping plates, the connecting mechanisms are complex and inconvenient to install and disassemble quickly; in addition, in order to eliminate the influence of the stress blank clearance, the 6 clamping plates are usually arranged in a mutual buckling mode, but in the loading process, certain errors are generated on the test result due to the friction force generated by the mutual sliding of the clamping plates. In order to improve the simplicity of operation of true triaxial rock sample splint coupling mechanism, greatly reduce the frictional resistance that splint mutual slip produced, reduce experimental error, wait to develop the three-dimensional mutual-buckling roll-sliding formula coupling mechanism of true triaxial rock sample splint to realize that 6 splint three-dimensional free slip under the effect of true three-dimensional stress.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a three-way mutual buckling rolling-sliding type connecting mechanism of a true triaxial rock sample clamping plate, wherein 6 clamping plates are connected through guide rail combinations I-IV, so that the clamping plates can freely slide in three directions under the action of true three-way stress loading; the 6 clamping plates are arranged in a mutual buckling mode, and a stress blank gap is avoided in the loading process; the main guide rail and the auxiliary guide rail are composed of sliding blocks, sliding grooves and balls, and frictional resistance generated by mutual sliding of the clamping plates is greatly reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the three-way mutual-buckling rolling-sliding type connecting mechanism of the true triaxial rock sample clamping plate comprises a guide rail combination I, a guide rail combination II, a guide rail combination III and a guide rail combination IV. The guide rail combination I consists of a main guide rail along the X direction and two auxiliary guide rails along the Y direction, wherein the side surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails; the guide rail combination II consists of a main guide rail along the Y direction and two auxiliary guide rails along the Z direction, wherein the top surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails; the guide rail combination III consists of a main guide rail along the Z direction and two auxiliary guide rails along the X direction, wherein the top surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails, and a limiting plate is arranged at the bottom end of the main guide rail; the guide rail combination IV is composed of a main guide rail along the Z direction and two auxiliary guide rails along the X direction, wherein the side surface of the main guide rail is connected with the bottom surface of the auxiliary guide rails, and a limiting plate is arranged at the bottom end of the main guide rail.
The guide rail combination I is connected with the first clamping plate and the fifth clamping plate, wherein the top surface of the main guide rail is connected with the positive Y surface of the first clamping plate, and the top surface of the auxiliary guide rail is connected with the positive Z surface of the fifth clamping plate; the guide rail combination I is connected with the second clamping plate and the sixth clamping plate, wherein the top surface of the main guide rail is connected with the negative Y surface of the second clamping plate, and the top surface of the auxiliary guide rail is connected with the negative Z surface of the sixth clamping plate; the guide rail combination II is connected with the first clamping plate and the third clamping plate, wherein the side surface of the main guide rail is connected with the positive Z surface of the third clamping plate, and the top surface of the auxiliary guide rail is connected with the positive X surface of the first clamping plate; the guide rail combination II is connected with the second clamping plate and the fourth clamping plate, wherein the side surface of the main guide rail is connected with the negative Z surface of the fourth clamping plate, and the top surface of the auxiliary guide rail is connected with the negative X surface of the second clamping plate; the guide rail combination III is connected with the third clamping plate and the fifth clamping plate, wherein the side surface of the main guide rail is connected with the positive X surface of the fifth clamping plate, and the top surface of the auxiliary guide rail is connected with the positive Y surface of the third clamping plate; and the guide rail combination IV is connected with the fourth clamping plate and the sixth clamping plate, wherein the top surface of the main guide rail is connected with the negative X surface of the sixth clamping plate, and the top surface of the auxiliary guide rail is connected with the negative Y surface of the sixth clamping plate.
The first clamping plate is connected with the sliding rail combination I and the sliding rail combination II, the sliding rail combination I can freely slide in the X direction and the Y direction, the sliding rail combination II can freely slide in the Y direction and the Z direction, and the sliding rail combination I and the sliding rail combination II jointly act to enable the first clamping plate to freely slide in three directions; the second clamping plate is connected with the sliding rail combination I and the sliding rail combination II, the sliding rail combination I can freely slide in the X direction and the Y direction, the sliding rail combination II can freely slide in the Y direction and the Z direction, and the sliding rail combination I and the sliding rail combination II jointly act to enable the second clamping plate to freely slide in three directions; the third clamping plate is connected with the sliding rail combination II and the sliding rail combination III, the sliding rail combination II can freely slide in the Y direction and the Z direction, the sliding rail combination III can freely slide in the X direction and the Z direction, and the sliding rail combination II and the sliding rail combination III jointly act to enable the third clamping plate to freely slide in three directions; the fourth clamping plate is connected with a sliding rail combination II and a sliding rail combination IV, the sliding rail combination II can freely slide in the Y direction and the Z direction, the sliding rail combination IV can freely slide in the X direction and the Z direction, and the sliding rail combination II and the sliding rail combination IV jointly act to enable the fourth clamping plate to freely slide in three directions; the fifth clamping plate is connected with the sliding rail combination I and the sliding rail combination III, the sliding rail combination I can freely slide in the X direction and the Y direction, the sliding rail combination III can freely slide in the X direction and the Z direction, and the sliding rail combination II and the sliding rail combination III jointly act to enable the fifth clamping plate to freely slide in three directions; the sixth clamping plate is connected with a sliding rail combination I and a sliding rail combination IV, the sliding rail combination I can freely slide in the X direction and the Y direction, the sliding rail combination IV can freely slide in the X direction and the Z direction, and the sliding rail combination I and the sliding rail combination IV jointly act to enable the sixth clamping plate to freely slide in three directions; the six clamping plates can freely slide in three directions in the loading process.
The main guide rail and the auxiliary guide rail are composed of sliding blocks, sliding grooves and balls.
The main guide rail and the auxiliary guide rail and the contact surface of the guide rail and the clamping plate are mutually bonded through glue.
And limiting plates are arranged at the bottom ends of the guide rail combination III and the guide rail combination IV and are connected with the bottom end of the Z-direction main guide rail through bolts.
The invention has the beneficial effects that:
compared with the existing connecting mechanism of the clamping plates, the connecting mechanism of the invention has the advantages of convenient installation and disassembly and greatly reducing the frictional resistance generated by mutual sliding between the clamping plates in the test process. The six clamping plates are respectively connected with the two guide rails in a combined manner, the technical problem that the unidirectional guide rail and the bidirectional guide rail can only realize sliding in a single direction or two directions is solved, and the rolling sliding type connection in three directions of the six mutually buckled clamping plates of the true triaxial sample is realized.
Drawings
FIG. 1 is a schematic diagram of an isometric view of the southeast of a three-way interlocking roll-sliding type connecting mechanism of a true triaxial rock sample clamping plate according to the present invention;
FIG. 2 is a schematic diagram of a northwest isometric view of a three-way interlocking roll-sliding type connecting mechanism of a true triaxial rock specimen clamping plate according to the present invention;
FIG. 3 is a schematic view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail I of the true triaxial rock sample clamping plate according to the present invention;
FIG. 4 is a cross-sectional view of the three-way interlocking roll-slip coupling mechanism combination rail I A-A of the true triaxial rock specimen clamping plate of the present invention;
FIG. 5 is a longitudinal cross-sectional view of a three-way interlocking roll-slip attachment mechanism composite rail I B-B of the true triaxial rock specimen clamping plate of the present invention;
FIG. 6 is a schematic view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail II of the true triaxial rock sample clamping plate according to the present invention;
FIG. 7 is a sectional view of the three-way interlocking roll-sliding type connecting mechanism combined guide rail II C-C of the true triaxial rock sample clamping plate of the present invention;
FIG. 8 is a D-D longitudinal cross-sectional view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail II of the true triaxial rock sample clamping plate according to the present invention;
FIG. 9 is a schematic view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail III of the true triaxial rock sample clamping plate according to the present invention;
FIG. 10 is a cross-sectional view of the three-way interlocking roll-sliding type connecting mechanism combined guide rail III E-E of the true triaxial rock specimen clamping plate of the present invention;
FIG. 11 is a longitudinal cross-sectional view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail III F-F of the true triaxial rock sample clamping plate according to the present invention;
FIG. 12 is a schematic view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail IV of the true triaxial rock sample clamping plate according to the present invention;
FIG. 13 is a cross-sectional view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail IV G-G of the true triaxial rock sample clamping plate according to the present invention;
FIG. 14 is a longitudinal sectional view of a three-way interlocking roll-sliding type connecting mechanism combined guide rail IV H-H of the true triaxial rock sample clamping plate according to the present invention;
FIG. 15 is a schematic view of a three-way interlocking roll-sliding type connecting mechanism guide rail of the true triaxial rock sample clamping plate according to the present invention;
FIG. 16 is a schematic view of a three-way interlocking roll-sliding type connecting mechanism rail slider of the true triaxial rock sample clamping plate according to the present invention;
FIG. 17 is a schematic view of a main guide rail chute of the three-way interlocking roll-sliding type connecting mechanism of the true triaxial rock sample clamping plate according to the present invention;
in the figure: 1-a combined guide rail I; 2-combined guide rail II; 3-a combined guide rail III; 4-combined guide rail IV; 101-combined guide rail IX to main guide rail; 102-combination rail I Y toward the secondary rail; 103-combination guide I X toward main guide ball; 104-combination rail I Y to the sub-rail ball; 101-compound rail I X toward the primary rail; 201-combined guide rail II Y direction main guide rail; 202-a combined guide rail II Z-direction auxiliary guide rail; 301-combined guide rail III Z-direction main guide rail; 302-combined guide rail III X is to the auxiliary guide rail; 303-combined guide rail III Z-direction main guide rail ball bearing; 304-combined guide rail III limiting plate; 305-combination guide rail III X is to the auxiliary guide rail ball; 401-combined guide rail IV Z-direction main guide rail; 402-combined guide IV X-direction secondary guide; 403-combined guide rail IV Z direction main guide rail ball; 404-a combined guide rail IV limiting plate; 405-combination guide rail IV X is to the auxiliary guide rail ball; 5-a first splint; 6-a second splint; 7-a third splint; 8-a fourth splint; 9-fifth splint; 10-sixth splint; 11-guide rail top surface; 12-guide rail bottom surface; 13-guide rail side; 14-a slide block; 15-a chute; 17-bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The three-way mutual-buckling rolling-sliding type connecting mechanism of the true triaxial rock sample clamping plate comprises a guide rail combination I1, a guide rail combination II2, a guide rail combination III 3 and a guide rail combination IV 4. The guide rail combination I1 is composed of a main guide rail 101 along the X direction and two auxiliary guide rails 102 along the Y direction, wherein the side surface 13 of the main guide rail 101 is connected with the bottom surface 12 of the auxiliary guide rails 102; the guide rail combination II2 consists of a main guide rail 201 along the Y direction and two auxiliary guide rails 202 along the Z direction, wherein the top surface 11 of the main guide rail 201 is connected with the bottom surface 12 of the auxiliary guide rails 202; the guide rail combination III 3 consists of a main guide rail 301 along the Z direction and two auxiliary guide rails 302 along the X direction, wherein the top surface 11 of the main guide rail 301 is connected with the bottom surface 12 of the auxiliary guide rails 302, and the bottom end of the main guide rail 301 is provided with a limiting plate 304; the guide rail combination IV 4 is composed of a main guide rail 401 along the Z direction and two sub guide rails 402 along the X direction, wherein the side surface 13 of the main guide rail 401 is connected with the bottom surface 12 of the sub guide rails 402, and a limiting plate 404 is arranged at the bottom end of the main guide rail 401.
The guide rail combination I1 is connected with the first clamping plate 5 and the fifth clamping plate 9, wherein the top surface 11 of the main guide rail 101 is connected with the positive Y surface of the first clamping plate 5, and the top surface 11 of the auxiliary guide rail 102 is connected with the positive Z surface of the fifth clamping plate 9; the guide rail combination I1 is connected with the second clamping plate 6 and the sixth clamping plate 10, wherein the top surface 11 of the main guide rail 101 is connected with the negative Y surface of the second clamping plate 6, and the top surface 11 of the auxiliary guide rail 102 is connected with the negative Z surface of the sixth clamping plate 10; the guide rail combination II2 is connected with the first clamping plate 5 and the third clamping plate 7, wherein the side surface 13 of the main guide rail 201 is connected with the positive Z surface of the third clamping plate 7, and the top surface 11 of the auxiliary guide rail 202 is connected with the positive X surface of the first clamping plate 5; the guide rail combination II2 is connected with the second clamping plate 6 and the fourth clamping plate 8, wherein the side surface 13 of the main guide rail 201 is connected with the negative Z surface of the fourth clamping plate 8, and the top surface 11 of the auxiliary guide rail 202 is connected with the negative X surface of the second clamping plate 6; the guide rail combination III 3 is connected with a third clamping plate 7 and a fifth clamping plate 9, wherein the side surface 13 of the main guide rail 301 is connected with the positive X surface of the fifth clamping plate 9, and the top surface 11 of the auxiliary guide rail 302 is connected with the positive Y surface of the third clamping plate 7; the guide rail assembly IV 4 is connected to the fourth clamping plate 8 and the sixth clamping plate 10, wherein the top surface 11 of the main guide rail 401 is connected to the negative X surface of the sixth clamping plate 10, and the top surface 11 of the auxiliary guide rail 402 is connected to the negative Y surface of the sixth clamping plate 10.
The first clamping plate 5 is connected with the sliding rail combination I1 and the sliding rail combination II2, the sliding rail combination I1 can freely slide in the X direction and the Y direction, the sliding rail combination II2 can freely slide in the Y direction and the Z direction, and the sliding rail combination I1 and the sliding rail combination II2 jointly act to enable the first clamping plate 5 to freely slide in three directions; the second clamping plate 6 is connected with a sliding rail combination I1 and a sliding rail combination II2, the sliding rail combination I1 can freely slide in the X direction and the Y direction, the sliding rail combination II2 can freely slide in the Y direction and the Z direction, and the sliding rail combination I1 and the sliding rail combination II2 jointly act to enable the second clamping plate 6 to freely slide in three directions; the third clamping plate 7 is connected with the sliding rail combination II2 and the sliding rail combination III 3, the sliding rail combination II2 can freely slide in the Y direction and the Z direction, the sliding rail combination III 3 can freely slide in the X direction and the Z direction, and the sliding rail combination II2 and the sliding rail combination III 3 jointly act to enable the third clamping plate 7 to freely slide in three directions; the fourth clamping plate 8 is connected with the sliding rail combination II2 and the sliding rail combination IV 4, the sliding rail combination II2 can freely slide in the Y direction and the Z direction, the sliding rail combination IV 4 can freely slide in the X direction and the Z direction, and the sliding rail combination II2 and the sliding rail combination IV 4 jointly act to enable the fourth clamping plate 8 to freely slide in three directions; the fifth clamping plate 9 is connected with a sliding rail combination I1 and a sliding rail combination III 3, the sliding rail combination I1 can realize free sliding in the X direction and the Y direction, the sliding rail combination III 3 can realize free sliding in the X direction and the Z direction, and the sliding rail combination II2 and the sliding rail combination III 3 jointly act to enable the fifth clamping plate 9 to freely slide in three directions; the sixth clamping plate 10 is connected with a sliding rail combination I1 and a sliding rail combination IV 4, the sliding rail combination I1 can realize free sliding in the X direction and the Y direction, the sliding rail combination IV 1 can realize free sliding in the X direction and the Z direction, and the sliding rail combination I1 and the sliding rail combination IV 4 act together to enable the sixth clamping plate 10 to freely slide in three directions; the six clamping plates can freely slide in three directions in the loading process.
The main guide rail and the auxiliary guide rail are composed of sliding blocks, sliding grooves and balls.
The main guide rail and the auxiliary guide rail and the contact surface of the guide rail and the clamping plate are mutually bonded through hardened super glue modified acrylate adhesive; the hardened super glue is a modified acrylate adhesive.
And the bottom ends of the guide rail combination III 3 and the guide rail combination IV 4 are provided with limiting plates 3, and the limiting plates are connected with the bottom end of the Z-direction main guide rail through bolts 11.
The operation steps of the three-way mutual buckling rolling-sliding type connecting mechanism of the true triaxial rock sample clamping plate are as follows:
Claims (7)
1. The three-dimensional of true triaxial rock specimen splint is each other detained and is rolled smooth formula coupling mechanism, its characterized in that: comprises a guide rail combination I, a guide rail combination II, a guide rail combination III and a guide rail combination IV. The guide rail combination I consists of a main guide rail along the X direction and two auxiliary guide rails along the Y direction, wherein the side surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails; the guide rail combination II consists of a main guide rail along the Y direction and two auxiliary guide rails along the Z direction, wherein the top surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails; the guide rail combination III consists of a main guide rail along the Z direction and two auxiliary guide rails along the X direction, wherein the top surface of the main guide rail is connected with the bottom surfaces of the auxiliary guide rails, and a limiting plate is arranged at the bottom end of the main guide rail; the guide rail combination IV is composed of a main guide rail along the Z direction and two auxiliary guide rails along the X direction, wherein the side surface of the main guide rail is connected with the bottom surface of the auxiliary guide rails, and a limiting plate is arranged at the bottom end of the main guide rail.
2. The three-way interlocking roll-slide connection mechanism of a true triaxial rock sample clamping plate according to claim 1, wherein: the guide rail combination I is connected with the first clamping plate and the fifth clamping plate, wherein the top surface of the main guide rail is connected with the positive Y surface of the first clamping plate, and the top surface of the auxiliary guide rail is connected with the positive Z surface of the fifth clamping plate; the guide rail combination I is connected with the second clamping plate and the sixth clamping plate, wherein the top surface of the main guide rail is connected with the negative Y surface of the second clamping plate, and the top surface of the auxiliary guide rail is connected with the negative Z surface of the sixth clamping plate; the guide rail combination II is connected with the first clamping plate and the third clamping plate, wherein the side surface of the main guide rail is connected with the positive Z surface of the third clamping plate, and the top surface of the auxiliary guide rail is connected with the positive X surface of the first clamping plate; the guide rail combination II is connected with the second clamping plate and the fourth clamping plate, wherein the side surface of the main guide rail is connected with the negative Z surface of the fourth clamping plate, and the top surface of the auxiliary guide rail is connected with the negative X surface of the second clamping plate; the guide rail combination III is connected with the third clamping plate and the fifth clamping plate, wherein the side surface of the main guide rail is connected with the positive X surface of the fifth clamping plate, and the top surface of the auxiliary guide rail is connected with the positive Y surface of the third clamping plate; and the guide rail combination IV is connected with the fourth clamping plate and the sixth clamping plate, wherein the top surface of the main guide rail is connected with the negative X surface of the sixth clamping plate, and the top surface of the auxiliary guide rail is connected with the negative Y surface of the sixth clamping plate.
3. The three-way interlocking roll-slide connection mechanism of a true triaxial rock sample clamping plate according to claim 1, wherein: the first clamping plate is connected with a sliding rail combination I and a sliding rail combination II, the sliding rail combination I freely slides along the X direction and the Y direction, the sliding rail combination II freely slides along the Y direction and the Z direction, the sliding rail combination I and the sliding rail combination II jointly act, and the first clamping plate freely slides along X, Y, Z directions; the second clamping plate is connected with the sliding rail combination I and the sliding rail combination II, the sliding rail combination I freely slides along the X direction and the Y direction, the sliding rail combination II freely slides along the Y direction and the Z direction, the sliding rail combination I and the sliding rail combination II jointly act, and the second clamping plate freely slides along X, Y, Z directions; the third clamping plate is connected with a sliding rail combination II and a sliding rail combination III, the sliding rail combination II freely slides along the Y direction and the Z direction, the sliding rail combination III freely slides along the X direction and the Z direction, and the sliding rail combination II and the sliding rail combination III jointly act to enable the third clamping plate to freely slide along X, Y, Z directions; the fourth clamping plate is connected with a sliding rail combination II and a sliding rail combination IV, the sliding rail combination II freely slides along the Y direction and the Z direction, the sliding rail combination IV freely slides along the X direction and the Z direction, the sliding rail combination II and the sliding rail combination IV jointly act, and the fourth clamping plate freely slides along X, Y, Z directions; the fifth clamping plate is connected with the sliding rail combination I and the sliding rail combination III, the sliding rail combination I freely slides along the X direction and the Y direction, the sliding rail combination III freely slides along the X direction and the Z direction, the sliding rail combination II and the sliding rail combination III jointly act, and the fifth clamping plate freely slides along X, Y, Z directions; the sixth clamping plate is connected with a sliding rail combination I and a sliding rail combination IV, the sliding rail combination I freely slides along the X direction and the Y direction, the sliding rail combination IV freely slides along the X direction and the Z direction, the sliding rail combination I and the sliding rail combination IV jointly act, and the sixth clamping plate can freely slide along X, Y, Z directions; the six cleats are free to slide in three directions X, Y, Z during loading.
4. The three-way interlocking roll-slide connection mechanism of a true triaxial rock sample clamping plate according to claim 1, wherein: the main guide rail and the auxiliary guide rail are composed of sliding blocks, sliding grooves and balls.
5. The three-way interlocking roll-slide connection mechanism of a true triaxial rock sample clamping plate according to claim 1, wherein: the main guide rail and the auxiliary guide rail and the contact surface of the guide rail and the clamping plate are bonded with each other through hardened super glue.
6. The three-way interlocking roll-slide connection mechanism of a true triaxial rock sample clamping plate according to claim 1, wherein: and limiting plates are arranged at the bottom ends of the guide rail combination III and the guide rail combination IV and are connected with the bottom end of the Z-direction main guide rail through bolts.
7. The three-way mutual buckling rolling-sliding type connection method of the true triaxial rock sample clamping plate is characterized in that: the method comprises the following steps:
step 1, connecting a limiting plate with the bottoms of a guide rail combination III and a guide rail combination IV through bolts;
step 2, connecting the guide rail combination I with a first clamping plate and a fifth clamping plate, wherein the top surface of the main guide rail is connected with the positive Y surface of the first clamping plate, and the top surface of the auxiliary guide rail is connected with the positive Z surface of the fifth clamping plate;
step 3, connecting the guide rail combination I with a second clamping plate and a sixth clamping plate, wherein the top surface of the main guide rail is connected with the negative Y surface of the second clamping plate, and the top surface of the auxiliary guide rail is connected with the negative Z surface of the sixth clamping plate;
step 4, connecting the guide rail combination II with a first clamping plate and a third clamping plate, wherein the side surface of the main guide rail is connected with the positive Z surface of the third clamping plate, and the top surface of the auxiliary guide rail is connected with the positive X surface of the first clamping plate;
step 5, connecting the guide rail combination II with a second clamping plate and a fourth clamping plate, wherein the side surface of the main guide rail is connected with the negative Z surface of the fourth clamping plate, and the top surface of the auxiliary guide rail is connected with the negative X surface of the second clamping plate;
step 6, connecting the guide rail combination III with a third clamping plate and a fifth clamping plate, wherein the side surface of the main guide rail is connected with the positive X surface of the fifth clamping plate, and the top surface of the auxiliary guide rail is connected with the positive Y surface of the third clamping plate;
step 7, connecting the guide rail combination IV with a fourth clamping plate and a sixth clamping plate, wherein the top surface of the main guide rail is connected with the negative X surface of the sixth clamping plate, and the top surface of the auxiliary guide rail is connected with the negative Y surface of the sixth clamping plate;
step 8, placing a second clamping plate on the base, placing a test piece on the second clamping plate, wherein the front edge and the left edge of the second clamping plate are flush with the front edge and the left edge of the test piece, and then placing a first clamping plate, wherein the rear edge and the right edge of the first clamping plate are flush with the rear edge and the right edge of the test piece;
step 9, connecting a fifth clamping plate with the first clamping plate through a guide rail, wherein the upper edge and the left edge of the fifth clamping plate are flush with the upper edge and the left edge of the test piece; connecting a third clamping plate with the first clamping plate through a guide rail, wherein the lower edge and the front edge of the third clamping plate are flush with the lower edge and the front edge of the test piece;
step 10, connecting a sixth clamping plate with a second clamping plate through a guide rail, wherein the lower edge and the left edge of the sixth clamping plate are flush with the lower edge and the left edge of the test piece; connecting a fourth clamping plate with the second clamping plate through a guide rail, wherein the lower edge and the rear edge of the fourth clamping plate are flush with the lower edge and the rear edge of the test piece;
step 11, when stress in the Z-axis direction is applied, the first clamping plate, the fourth clamping plate and the fifth clamping plate form a whole to slide downwards under the action of force and the second clamping plate, the third clamping plate and the sixth clamping plate form a whole to slide upwards under the action of force due to mutual buckling;
step 12, when stress in the X-axis direction is applied, due to mutual buckling, the first clamping plate, the third clamping plate and the sixth clamping plate form a whole to slide leftwards under the action of force, and the second clamping plate, the fourth clamping plate and the fifth clamping plate form a whole to slide rightwards under the action of force;
step 13, when stress in the Y-axis direction is applied, due to mutual buckling, the second clamping plate, the third clamping plate and the fifth clamping plate form a whole to slide backwards under the action of force, and the first clamping plate, the fourth clamping plate and the sixth clamping plate form a whole to slide forwards under the action of force;
step 14, in the loading process of the true triaxial test, when X, Y, Z three-way stress is applied, the six clamping plates freely slide in three directions X, Y, Z.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202111561661.8A CN114184463B (en) | 2021-12-16 | 2021-12-16 | Three-way inter-buckling rolling-sliding type connecting mechanism and connecting method for true triaxial rock sample clamping plates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202111561661.8A CN114184463B (en) | 2021-12-16 | 2021-12-16 | Three-way inter-buckling rolling-sliding type connecting mechanism and connecting method for true triaxial rock sample clamping plates |
Publications (2)
Publication Number | Publication Date |
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CN114184463A true CN114184463A (en) | 2022-03-15 |
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