CN117367970A - Mine filling body tensile strength testing device - Google Patents
Mine filling body tensile strength testing device Download PDFInfo
- Publication number
- CN117367970A CN117367970A CN202311650015.8A CN202311650015A CN117367970A CN 117367970 A CN117367970 A CN 117367970A CN 202311650015 A CN202311650015 A CN 202311650015A CN 117367970 A CN117367970 A CN 117367970A
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- column
- tensile strength
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 230000000670 limiting effect Effects 0.000 claims description 47
- 239000000945 filler Substances 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
Classifications
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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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
- G01N3/02—Details
-
- 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
- G01N3/02—Details
- G01N3/04—Chucks
-
- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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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
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Abstract
The invention discloses a mine filling body tensile strength testing device, which relates to the technical field of filling body tensile strength testing and comprises a bearing table; the force application frame is fixedly arranged on the surface of the bearing table, and is provided with a clamping area which can limit the two ends of the filling body; the invention can realize the tensile strength test operation when the lateral tension is applied to the filling body through the matching of the angle adjuster and the force application frame, specifically, the filling body is firstly placed in the clamping area and the end part of the filling body is fixed through the matching joint, then the force application frame is driven to pull the matching joint to move along the direction parallel to the axis of the filling body so as to apply force to the end part of the filling body, at the moment, the situation when the tension is parallel to the axis of the filling body can be simulated, and then the angle adjuster can be used for carrying the end part of the filling body to deflect by a set angle, so that the situation when the tension and the axis of the filling body are set angles can be simulated.
Description
Technical Field
The invention relates to the technical field of tensile strength testing of filling bodies, in particular to a tensile strength testing device of mine filling bodies.
Background
The filling mining method has the advantages of controlling the ground pressure and reducing the discharge of surface solid wastes, and is widely applied at home and abroad at present. The strength of the filling body is a key parameter for mine filling, particularly in downward filling mining, personnel and equipment are all operated under the false roof of the filling body, and the stability of the filling body directly influences the safety of stope personnel and equipment. Therefore, determining the tensile strength of the filler has an important role in rationalizing the filler parameters.
In the prior art, the Chinese patent with the bulletin number of CN111735704B discloses a mine filling body tensile strength testing device and a method, wherein in the testing process, the pressure born by an upper bracket can be converted into the tensile force to a test piece, the end head of the test piece is not required to be fixed in a clamping, bonding and other modes, the problem of damage to the end head of the test piece caused by stress concentration generated by the interaction force of a clamp or a bonding surface and the test piece is effectively avoided, in addition, in the testing process, the limiting structure prevents the end head of the test piece from rotating relative to the upper bracket and the lower bracket, and the problem of eccentric test piece is solved.
The above patent document solves the problems of broken ends of the test piece and eccentric of the test piece, but has limitations in operation, because the broken ends of the test piece and eccentric of the test piece are both problems of the test piece in the test process, and meanwhile, the direction of the force applied to the test piece in the test process is in the same straight line with the axis of the test piece, the force application direction is relatively single, because after the filling body is installed on a mine, due to the complex internal structure of the mine cavity, the installed filling body has a certain probability of tilting (although being vertical to the inner wall of the mine and not vertical to the horizontal plane), and because the gravity of the mine is vertical to the horizontal plane, the force applied to the test piece is inclined, if the inclined tensile strength of the test filling body is simulated under the condition of being obliquely installed by directly applying an inclined tensile strength to the upward bracket in the prior art, because of the fixing leaning clamping groove and the limiting mechanism between the filling body and the lower bracket, once the inclined force is relatively high, the filling body is guided to be separated from the clamping groove or because only one end of the filling body is fixed when the side force is applied to the filling body in the prior art, the prior art has a relatively high probability of tilting the filling body is not generated from the middle region of the clamping groove.
Disclosure of Invention
The invention aims to provide a mine filling body tensile strength testing device, which aims to solve the problem of how to test the tensile strength of a filling body when lateral pulling force is applied under the condition that the position of the filling body is not affected in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a mine filling body tensile strength testing device comprises
The bearing table can bear the filling body which is horizontally placed;
the force application frame is fixedly arranged on the surface of the bearing table, a clamping area is arranged on the force application frame, and the clamping area can limit the two ends of the filling body;
the adjusting mechanism is arranged in the clamping area;
the adjusting mechanism comprises an angle adjuster and a matching joint which is detachably arranged at the end part of the filling body, the matching joint is movably connected with a force application frame, and the force application frame can move along the direction parallel to the axial line of the filling body through traction of the matching joint so as to apply force to the end part of the filling body; the angle adjuster is arranged in the clamping area and is movably connected with the matching joint, and the angle adjuster can deflect by a set angle with the end part of the filling body.
As a preferable scheme of the invention, the matching joint comprises a fixed sleeve in threaded connection with the side wall of the end part of the filling body, a tooth piece is arranged on the surface of one end of the fixed sleeve far away from the filling body, and the fixed sleeve is positioned in the clamping area;
the angle adjuster comprises a tooth column which is arranged in the clamping area and is in meshed connection with the tooth sheet, and the tooth column can drive the end part of the filling body to deflect through the traction tooth sheet;
the surface of the tooth piece is provided with a force application block fixedly connected with the surface of one end of the fixed sleeve, which is far away from the filling body, and the force application block is movably connected with the force application frame.
As a preferred solution of the present invention, the force application frame includes two screw rods and a pair of limiting covers, the pair of limiting covers are located on the surface of the bearing table and symmetrically arranged about the center line of the bearing table in the length or width direction, the clamping area is formed in the inner cavity of the pair of limiting covers and in the area between the pair of limiting covers, and a driving rod fixedly connected with the tooth column located in the limiting cover is arranged on the surface of each limiting cover; when one driving rod deflects a set angle, the other driving rod can deflect a set angle towards the opposite direction;
the two screw rods are respectively arranged at one ends of the pair of limiting covers, which are opposite to each other, a fixed table is arranged on the bearing table, and one end of each screw rod, which is far away from the limiting cover, penetrates through the fixed table.
As a preferable scheme of the invention, one end of the screw rod column close to the limiting cover is provided with a force fixing table, and one end of the force fixing table far away from the screw rod column is provided with a limiting block positioned in the clamping area;
the surface of the force application block is provided with a movable groove, and the surface of the limiting block is provided with a traction column clamped into the movable groove.
As a preferable scheme of the invention, one end of the fixed sleeve, which is far away from the tooth column, is provided with a connecting ring fixedly connected with the side wall of the filling body, and the side wall of the connecting ring is provided with two symmetrically arranged fixed blocks;
the limiting cover inside wall is fixed in that the go-between is kept away from fixed sleeve one side and is equipped with the anticreep ring, the lateral wall of anticreep ring all has seted up smooth logical groove with every fixed block position department that corresponds, be equipped with in the smooth logical groove and unload the power post, it is equipped with the fixed block lateral wall butt to unload the power post, the limiting cover inner wall is installed and is unloaded the power ware of being connected with unloading the power post can be dismantled.
As a preferable scheme of the invention, the surface of the fixed block is provided with an arc block;
the anti-drop ring is characterized in that a deflection block is arranged at the position of the inner side wall of the anti-drop ring corresponding to the arc block, an arc surface matched with the surface of the arc block is arranged on the surface of the deflection block, and the arc block can slide along the arc surface.
As a preferred scheme of the invention, the deflection block is provided with a movement groove for accommodating the movement of the fixed block, and the size of the movement groove is matched with the height of the unloading column.
As a preferred embodiment of the present invention, the diameter of the traction column is at least one half of the width of the movable groove.
As a preferred embodiment of the invention, the inner cavity of the fixing sleeve is matched with the end of the filling body and can be fixedly connected through a fixing piece.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can realize the tensile strength test operation when the lateral tension is applied to the filling body through the matching of the angle adjuster and the force application frame, and particularly, the filling body is firstly placed in the clamping area, the end part of the filling body is fixed through the matching joint, then the force application frame is driven to pull the matching joint to move along the direction parallel to the axis of the filling body so as to apply force to the end part of the filling body, at the moment, the situation when the tension is parallel to the axis of the filling body can be simulated, and then the angle adjuster can be used for carrying the end part of the filling body to deflect by a set angle, so that the situation when the tension and the axis of the filling body are at the set angle can be simulated.
2. Compared with the operation of directly applying lateral tension in the prior art, the invention mainly adjusts the angle of the filling body and then applies tension, so that the phenomenon that the filling body falls off easily when the tension is applied quickly or the filling body is not well fixed in the operation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a driving lever according to an embodiment of the present invention;
FIG. 3 is a schematic view of a tooth post structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a force block according to an embodiment of the present invention;
FIG. 5 is a schematic view of a connecting ring according to an embodiment of the present invention;
fig. 6 is a schematic view of a tooth structure according to an embodiment of the present invention.
Reference numerals in the drawings are respectively as follows:
1. a carrying platform; 2. a force application frame; 3. an adjusting mechanism; 4. an angle adjuster; 5. matching the joints; 6. a fixed sleeve; 7. a tooth plate; 8. tooth columns; 9. a force application block; 10. a screw column; 11. a limiting cover; 12. a drive rod; 13. a fixed table; 14. a force fixing table; 15. a limiting block; 16. a movable groove; 17. a traction column; 18. a fixed block; 19. anti-slip ring; 20. a slide through groove; 21. a force unloading column; 22. a force unloader; 23. arc blocks; 24. a deflection block; 25. a movement groove; 26. and a connecting ring.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-6, the invention provides a mine filling body tensile strength testing device, which comprises a bearing table 1, wherein the bearing table 1 can bear a filling body which is horizontally placed; the force application frame 2 is fixedly arranged on the surface of the bearing table 1, and the force application frame 2 is provided with a clamping area which can limit the two ends of the filling body; the adjusting mechanism 3 is arranged in the clamping area; the adjusting mechanism 3 comprises an angle adjuster 4 and a matching joint 5 which is detachably arranged at the end part of the filling body, the matching joint 5 is movably connected with the force application frame 2 (the connection mode can be refer to fig. 3-5), and the force application frame 2 can move along the direction parallel to the axial lead of the filling body through traction of the matching joint 5 so as to apply force to the end part of the filling body; the angle adjuster 4 is arranged in the clamping area and is movably connected with the matching joint 5, and the angle adjuster 4 can deflect a set angle with the end part of the filling body.
According to the invention, the tensile strength test operation of the filling body when lateral tension is applied can be realized through the cooperation of the angle adjuster 4 and the force application frame 2, specifically, the filling body is firstly placed in the clamping area, the end part of the filling body is fixed through the matching joint 5, then the force application frame 2 is driven to pull the matching joint 5 to move along the direction parallel to the axis of the filling body so as to apply force to the end part of the filling body, at the moment, the condition that the tension is parallel to the axis of the filling body can be simulated, and then the angle adjuster 4 can be used for carrying the end part of the filling body to deflect by a set angle, so that the condition that the tension and the axis of the filling body are at the set angle can be simulated.
In the prior art, the angle of the filling body is firstly adjusted and then the pulling force is applied, so that the phenomenon that the filling body falls off easily once the pulling force is applied faster or the filling body is not fixed perfectly during operation is easy to occur.
In order to adjust the deflection angle of the filling body without dismantling the filling body, in some embodiments, the matching joint 5 comprises a fixing sleeve 6 in threaded connection with the side wall of the end part of the filling body (in order to fix the fixing sleeve 6 and the filling body, threads can be arranged at the end part of the filling body), a tooth piece 7 is arranged on the surface of one end of the fixing sleeve 6 away from the filling body, and the fixing sleeve 6 is positioned in the clamping zone;
the angle adjuster 4 comprises a tooth column 8 which is arranged in the clamping area and is in meshed connection with the tooth sheet 7, and the tooth column 8 can drive the end part of the filling body to deflect by pulling the tooth sheet 7;
the surface of the tooth piece 7 is provided with a force application block 9 fixedly connected with the surface of one end of the fixed sleeve 6 far away from the filling body, and the force application block 9 is movably connected with the force application frame 2.
Referring to fig. 2 to 5, when the angle of the filling body is not adjusted, the force application frame 2 pulls the fixing sleeve 6 through the force application block 9, and then the fixing sleeve 6 applies a pulling force to the filling body;
if the angle of the filling body needs to be adjusted, the tooth column 8 is directly driven to rotate at the moment, then the rotating tooth column 8 can be directly meshed to drive the tooth sheet 7 to deflect, in the process, the fixed sleeve 6 is always subjected to the tensile force from the force application frame 2, the direction and the magnitude of the tensile force are not greatly changed, and therefore the falling probability of the filling body is small.
In some embodiments, in order to prevent the force application direction and the angle adjustment direction from interfering with each other, the force application frame 2 includes two screw columns 10 and a pair of limiting covers 11, where the pair of limiting covers 11 are located on the surface of the carrying platform 1 and symmetrically disposed about the center line of the carrying platform 1 in the length or width direction, a clamping area is formed in the inner cavity of the pair of limiting covers 11 and in the area between the pair of limiting covers 11, and a driving rod 12 fixedly connected to the tooth column 8 located in the limiting cover 11 is disposed on the surface of each limiting cover 11; when one driving rod 12 deflects a set angle, the other driving rod 12 can deflect a set angle towards the opposite direction;
the two screw rods 10 are respectively arranged at the opposite ends of the limiting cover 11, the bearing table 1 is provided with a fixed table 13, and one end of the screw rod 10 away from the limiting cover 11 penetrates through the fixed table 13.
A force fixing table 14 is arranged at one end of the screw rod column 10 close to the limiting cover 11, and a limiting block 15 positioned in the clamping area is arranged at one end of the force fixing table 14 away from the screw rod column 10;
the surface of the force application block 9 is provided with a movable groove 16, and the surface of the limiting block 15 is provided with a traction column 17 clamped into the movable groove 16.
The principle of applying tension by the force application frame 2 is as follows: the screw rod column 10 is directly guided to move towards the direction far away from one end of the filling body, then the moving screw rod column 10 sequentially pulls the force fixing table 14, the limiting block 15 and the traction column 17, and when the traction column 17 is in a moving state, a tensile force is given to the force applying block 9, the fixing sleeve 6 and the end part of the filling body, so that the filling body is in a tensile force testing stage at the moment.
When a lateral force is needed, the tooth column 8 is guided to rotate by driving the driving rod 12 to deflect, the tooth column 8 rotates to drive the tooth sheet 7 to deflect, and the traction column 17 is positioned in the movable groove 16 when the tooth sheet 7 deflects, so that the tooth column 8 and the tooth sheet 7 can normally move, and meanwhile, the tension force of the force application block 9 and the fixed sleeve 6 is directly from the traction column 17, so that the fixed sleeve 6 always gives the tension force to the filling body.
I.e. the pulling force of the filling body is not affected when the tooth post 8 rotates.
In the invention, the driving of the screw rod column 10 can be realized through an external motor or a hydraulic push rod, which is the prior art, so that redundant description is not needed; meanwhile, the driving rod 12 can achieve the purpose of deflection through an external electric push rod mechanism, and can also pass through other structures, which are the prior art and are not described in detail.
Since the fixed sleeve 6 deflects, the filler will incline, and in order to prevent the fixed sleeve 6 from being pulled too much to separate the end of the filler from the fixed sleeve 6, in some embodiments, a connecting ring 26 (the connecting manner may be screw-threaded connection) fixedly connected to the side wall of the filler is provided at the end of the fixed sleeve 6 away from the tooth post 8, and two symmetrically arranged fixed blocks 18 are provided on the side wall of the connecting ring 26;
the limiting cover 11 inside wall is fixed in that go-between 26 keep away from fixed sleeve 6 one side and is equipped with anticreep ring 19, and the slide-through groove 20 has all been seted up to the lateral wall of anticreep ring 19 and every fixed block 18 position department that corresponds, is equipped with in the slide-through groove 20 and unloads the power post 21, unloads power post 21 and fixed block 18 lateral wall butt, limiting cover 11 inner wall install with unload power post 21 and dismantle the power ware 22 of being connected (unload power ware 22 can be as shown in fig. 3, two sleeves of sliding connection, install the spring in the sleeve, sleeve tip be equipped with unload power post 21 threaded connection's screw sleeve).
The surface of the fixed block 18 is provided with an arc block 23;
the position of the inner side wall of the anti-drop ring 19 corresponding to the arc block 23 is provided with a deflection block 24, the surface of the deflection block 24 is provided with an arc surface matched with the surface of the arc block 23, the arc block 23 can slide along the arc surface, and the arrangement of the arc block 23 is used for enabling the stability of the fixed sleeve 6 during deflection to be higher.
The deflection block 24 is provided with a movement groove 25 for accommodating the movement of the fixed block 18, and the size of the movement groove 25 is matched with the height of the unloading column 21.
When the filler is installed, the connecting ring 26 and the fixing sleeve 6 are sleeved at the end part of the filler in sequence. The connecting ring 26 and the fixing sleeve 6 are then inserted along the movement groove 25, see in particular fig. 3 and 5.
Then, once the end of the filling body is deflected (both ends can deflect at the same time), the deflected filling body moves together with the connecting ring 26 and the fixing block 18 (the deflection angle cannot be too large), so that the fixing block 18 is firmly abutted against the unloading column 21, and in the abutting process of the fixing block 18, if the filling body is inclined, the loosening phenomenon of the fixing sleeve 6 occurs (normally, the inner side wall of the fixing sleeve 6 is flush with the surface of the filling body, only friction force exists on the inner side wall of the fixing sleeve 6, once the fixing sleeve 6 is deflected by the filling body, the pressure between the inner wall of the fixing sleeve 6 and the surface of the filling body increases, and the filling body is separated towards the deflection direction, and the separating force of the filling body is removed by sequentially pushing the unloading column 21 and the unloading device 22 by the fixing block 18, so that the stability of the fixing sleeve 6 and the filling body is higher.
Specifically, the connecting ring 26 is matched with the force unloader 22 to further ensure the stability of the filling body in the fixed sleeve 6, namely, the stability of the end part of the filling body is increased through the force unloader 22, so that when the fixed sleeve 6 breaks, the connecting ring 26 can achieve the auxiliary limiting effect, and the filling body cannot be directly separated from the clamping area.
In some embodiments, the diameter of the traction posts 17 is at least one-half the slot width of the movable slots 16.
The purpose of this is that the traction column 17 does not shake greatly, and the diameter is large, the strength is also large, and the phenomena such as fracture are not easy to occur.
Because some of the filler ends are shaped, in some embodiments, the inner cavity of the fixing sleeve 6 is matched with the filler ends and can be fixedly connected through the fixing piece, that is, the filler ends can be provided with threaded holes, and the fixing sleeve 6 and the filler can be fixed by penetrating pins.
Working principle: the filling body is firstly placed in the clamping area, and the connecting ring 26 and the fixed sleeve 6 are sleeved at the end part of the filling body in sequence. After that, the connecting ring 26 and the fixing sleeve 6 are inserted along the movement groove 25.
The screw rod column 10 is guided to move towards the direction far away from one end of the filling body, then the moving screw rod column 10 sequentially pulls the force fixing table 14, the limiting block 15 and the traction column 17, and when the traction column 17 is in a moving state, a tensile force is given to the force applying block 9, the fixing sleeve 6 and the end part of the filling body, so that the filling body is in a tensile force testing stage at the moment.
When a lateral force is needed, the tooth column 8 is guided to rotate by driving the driving rod 12 to deflect, the tooth column 8 rotates to drive the tooth sheet 7 to deflect, and the traction column 17 is positioned in the movable groove 16 when the tooth sheet 7 deflects, so that the tooth column 8 and the tooth sheet 7 can normally move, and meanwhile, the tension force of the force application block 9 and the fixed sleeve 6 is directly from the traction column 17, so that the fixed sleeve 6 always gives the tension force to the filling body.
I.e. the pulling force of the filling body is not affected when the tooth post 8 rotates.
Once the end of the filling body is deflected (both ends can deflect at the same time), the deflected filling body can move together with the connecting ring 26 and the fixed block 18 (the deflection angle cannot be too large) so that the fixed block 18 is firmly abutted against the unloading column 21, and in the abutting process of the fixed block 18, if the filling body tilts, the fixed sleeve 6 loosens, at the moment, the fixed block 18 can sequentially push the unloading column 21 and the unloading device 22 to unload the releasing force of the filling body, so that the stability of the fixed sleeve 6 and the filling body is higher.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (9)
1. The mine filling body tensile strength testing device comprises a bearing table (1), and is characterized in that,
the bearing table (1) can bear a filling body which is horizontally placed;
the force application frame (2), the force application frame (2) is fixedly arranged on the surface of the bearing table (1), the force application frame (2) is provided with a clamping area, and the clamping area can limit the two ends of the filling body;
the adjusting mechanism (3) is arranged in the clamping area;
the adjusting mechanism (3) comprises an angle adjuster (4) and a matching connector (5) which is detachably arranged at the end part of the filling body, the matching connector (5) is movably connected with the force application frame (2), and the force application frame (2) can move along the direction parallel to the axial line of the filling body through the traction matching connector (5) so as to apply force to the end part of the filling body; the angle adjuster (4) is arranged in the clamping area and is movably connected with the matching connector (5), and the angle adjuster (4) can deflect a set angle with the end part of the filling body.
2. The mine filler tensile strength testing device according to claim 1, wherein the matching joint (5) comprises a fixed sleeve (6) in threaded connection with the end side wall of the filler, the surface of one end of the fixed sleeve (6) far away from the filler is provided with a tooth sheet (7), and the fixed sleeve (6) is positioned in a clamping area;
the angle adjuster (4) comprises a tooth column (8) which is arranged in the clamping area and is meshed with the tooth sheet (7), and the tooth column (8) can drive the end part of the filling body to deflect through the traction tooth sheet (7);
the surface of the tooth piece (7) is provided with a force application block (9) fixedly connected with the surface of one end, far away from the filling body, of the fixed sleeve (6), and the force application block (9) is movably connected with the force application frame (2).
3. The mine filler tensile strength testing device according to claim 2, wherein the force application frame (2) comprises two screw rods (10) and a pair of limiting covers (11), the pair of limiting covers (11) are positioned on the surface of the bearing table (1) and symmetrically arranged about the central line of the bearing table (1) in the length or width direction, the clamping area is formed in the inner cavity of the pair of limiting covers (11) and the area between the pair of limiting covers (11), and a driving rod (12) fixedly connected with the tooth column (8) positioned in the limiting cover (11) is arranged on the surface of each limiting cover (11); when one driving rod (12) deflects a set angle, the other driving rod (12) can deflect a set angle towards the opposite direction;
the two screw rods (10) are respectively arranged at one ends of the pair of limiting covers (11) which are opposite to each other, a fixed table (13) is arranged on the bearing table (1), and one end, far away from the limiting covers (11), of each screw rod (10) penetrates through the fixed table (13).
4. A mine filler tensile strength testing device according to claim 3, characterized in that one end of the screw column (10) close to the limiting cover (11) is provided with a force fixing table (14), and one end of the force fixing table (14) far away from the screw column (10) is provided with a limiting block (15) positioned in the clamping area;
the surface of the force application block (9) is provided with a movable groove (16), and the surface of the limiting block (15) is provided with a traction column (17) clamped into the movable groove (16).
5. The mine filler tensile strength testing device according to claim 4, wherein one end of the fixed sleeve (6) far away from the tooth column (8) is provided with a connecting ring (26) fixedly connected with the side wall of the filler, and the side wall of the connecting ring (26) is provided with two symmetrically arranged fixed blocks (18);
the limiting cover (11) is characterized in that an anti-slip ring (19) is fixedly arranged on one side, away from the fixed sleeve (6), of the inner side wall of the limiting cover (26), sliding grooves (20) are formed in the positions, corresponding to the positions of the side walls of the anti-slip ring (19) and each fixed block (18), of the sliding grooves (20), a force unloading column (21) is arranged in each sliding groove, the force unloading column (21) is in butt joint with the side wall of each fixed block (18), and a force unloading device (22) detachably connected with the force unloading column (21) is arranged on the inner wall of the limiting cover (11).
6. The mine filler tensile strength testing device according to claim 5, characterized in that the surface of the fixed block (18) is provided with an arc block (23);
the anti-drop ring is characterized in that a deflection block (24) is arranged at a position, corresponding to the arc block (23), of the inner side wall of the anti-drop ring (19), an arc surface matched with the surface of the arc block (23) is arranged on the surface of the deflection block (24), and the arc block (23) can slide along the arc surface.
7. The mine filler tensile strength testing device according to claim 6, wherein the deflection block (24) is provided with a movement groove (25) for accommodating movement of the fixed block (18), and the movement groove (25) is matched with the height of the unloading column (21) in size.
8. The mine filler tensile strength testing apparatus of claim 4, wherein the diameter of the traction column (17) is at least one half of the slot width of the movable slot (16).
9. The mine filler tensile strength testing device according to claim 2, characterized in that the inner cavity of the fixing sleeve (6) is matched with the filler end and can be fixedly connected through a fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311650015.8A CN117367970B (en) | 2023-12-05 | 2023-12-05 | Mine filling body tensile strength testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311650015.8A CN117367970B (en) | 2023-12-05 | 2023-12-05 | Mine filling body tensile strength testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117367970A true CN117367970A (en) | 2024-01-09 |
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