Comprehensive test board for mechanical property of anchor rod

Abstract

The utility model discloses an anchor rod mechanical property comprehensive testboard in the technical field of anchor rod mechanical tests, which comprises an anchor rod and a testboard, the testboard comprises a rotating base, a transverse moving frame and a rotating frame, the rotating base comprises a first V-shaped rod and a second V-shaped rod, and the first V-shaped rod and the second V-shaped rod are in running fit. Moving rods are fixedly mounted at the tail ends of the first V-shaped rod and the second V-shaped rod, a transverse moving frame is in sliding fit with inner cavities of the moving rods and comprises a floor, a fixing frame is fixedly inserted into the top of the floor and comprises a first outer frame and a second outer frame, and the first outer frame and the second outer frame are fixedly connected through small shafts at the four corners; the outer wall of the small shaft is sleeved with a roller, the roller is rotationally matched with the small shaft, the rotating frame comprises a rotating disc, the outer wall of the rotating disc is matched with the roller, outer teeth are evenly arranged in the middle of the outer wall of the rotating disc, and conical surfaces are arranged at the outer ends of the two sides of the rotating disc. And the multi-directional pressure test of the mechanical property of the complex stress combination of the anchor rod is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rod mechanics testing, in particular to an anchor rod mechanics performance comprehensive testing platform. Background Art

[0002] Bolt support has become the main and safest support method for coal mine tunnels, and has been widely promoted and applied in coal mine tunnels in my country. Bolt support is to anchor the bolts in the coal rock, tighten the nuts at the tail of the bolts to apply prestress to the surrounding rock, and restrain the deformation, separation, expansion and sliding of the surrounding rock in the tunnel.

[0003] Systematic research on the process parameters of anchor support construction is the basis for improving the matching of anchor support materials and the quality of anchor support construction. Research on the mechanical properties of complex stress combinations such as tensile stress, bending stress, torsion stress, shear stress, and impact stress of anchors is of great significance to deepening the research on anchor support mechanism, improving the reliability of anchor support, and ensuring engineering safety. However, the existing anchor performance test bench cannot adapt to the multi-directional pressure test of anchors and cannot meet the test requirements.

[0004] Based on this, the utility model designs a comprehensive test bench for the mechanical properties of anchor rods to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a comprehensive test bench for the mechanical properties of anchor rods, so as to solve the problem that the above-mentioned background technology proposes to study the mechanical properties of complex stress combinations such as tensile stress, bending stress, torsional stress, shear stress, impact stress, etc. of the anchor rod, which is of great significance to deepening the research on the anchor rod support mechanism, improving the reliability of anchor rod support, and ensuring the safety of the project. However, the existing anchor rod performance test bench cannot adapt to the multi-directional pressure test of the anchor rod and cannot meet the test requirements.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a comprehensive test bench for the mechanical properties of anchor rods, comprising an anchor rod and a test bench, the test bench comprising a rotating base, a transverse moving frame and a rotating frame, the rotating base comprising a No. 1 V-rod and a No. 2 V-rod, the No. 1 V-rod and the No. 2 V-rod are rotatably matched, the ends of the No. 1 V-rod and the No. 2 V-rod are fixedly installed with moving rods, the inner cavities of the moving rods are slidably matched with the transverse moving frame, the transverse moving frame comprises a floor, the top of the floor is fixedly plugged with a fixed frame, the fixed frame comprises a No. 1 outer frame and a No. 2 outer frame, the No. 1 outer frame and the No. 2 outer frame are fixedly connected by small shafts at four corners, and the small shafts The outer wall of the rotating disk is provided with a roller, and the roller is rotatably matched with the small shaft, and the rotating frame includes a rotating disk, and the outer wall of the rotating disk cooperates with the roller, and the middle part of the outer wall of the rotating disk is evenly provided with external teeth, and the outer ends of both sides of the rotating disk are provided with conical surfaces, and the inner cavity of the rotating disk is equipped with a No. 1 mounting plate and a No. 2 mounting plate, and the No. 1 mounting plate and the No. 2 mounting plate are fixedly connected by bolts, and a connecting short plate is fixedly installed on the surrounding walls of the No. 1 mounting plate, and the other end of the connecting short plate is fixedly connected to the inner cavity of the rotating disk, and the outer wall of the anchor rod is provided with a movable sleeve, and four groups of locking rods are fixedly installed on the outer wall of the movable sleeve, and the other end of the locking rod is located between the No. 1 mounting plate and the No. 2 mounting plate.

[0007] Preferably, a threaded sleeve is fixedly mounted on the outer end side wall of the movable sleeve, a notch is formed on the outer wall of the threaded sleeve, a locking nut is sleeved on the outer wall of the anchor rod, and the locking nut is threadably matched with the threaded sleeve.

[0008] Preferably, a plurality of groups of circular hole grooves are provided on the top of the floor, and a plurality of insertion rods are installed on the bottom of the fixing frame, and the insertion rods cooperate with the circular hole grooves.

[0009] Preferably, the floor is provided with several groups of arc grooves, the side wall of the movable rod is provided with several groups of ball grooves, the inner cavity of the ball groove is installed with a locking ball, the outer wall of the movable rod is fixedly installed with an electromagnet, the inner cavity of the movable rod is provided with a spring cavity, the inner cavity of the spring cavity is installed with several groups of springs, one end of the spring is in contact with the inner wall of the spring cavity, the other end of the spring is in contact with the locking ball, and the locking ball is magnetically matched with the electromagnet.

[0010] Preferably, a driving motor is fixedly mounted on the outer wall of the second outer frame via a motor mounting frame, a driving gear is fixedly mounted on the output end of the driving motor, and the driving gear is meshed with the external teeth.

[0011] Preferably, an auxiliary frame is fixedly installed in the middle of the outer wall of the No. 1 outer frame and the No. 2 outer frame, a small roller shaft is inserted in the auxiliary frame, a small roller is rotatably installed on the outer wall of the small roller shaft, and the small roller is movably matched with the conical surface of the rotating disk.

[0012] Preferably, a connecting head cover is fixedly installed on the front end of the No. 1 V-rod, and a connecting head is fixedly installed on the front end of the No. 2 V-rod, and the connecting head is rotatably matched with the connecting head cover, a cover plate is fixedly installed on the top of the connecting head, and a connecting plug shaft is installed on the bottom of the cover plate, and the connecting plug shaft is rotatably matched with the connecting head cover.

[0013] Preferably, a pull rod is fixedly mounted on the outer wall of the floor.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model installs movable sleeves on both sides of the anchor rod, installs locking nuts on the outer wall of the movable sleeve, and fixes the movable sleeve to the anchor rod through the threaded cooperation between the locking nut and the threaded outer sleeve; installs the locking rod between the No. 1 mounting plate and the No. 2 mounting plate, fixes the No. 1 mounting plate and the No. 2 mounting plate with bolts, and fixes the No. 1 mounting plate to the rotating disk through the setting of the connecting short plate; stabilizes the position of the rotating disk through four groups of rollers and four groups of small rollers; starts the driving motor to drive the driving gear to rotate; adjusts the rotation angle of the anchor rod through the cooperation of the driving gear and the external teeth; twists the anchor rod at one end through the two groups, which is convenient for testing the torsional stress of the anchor rod; and energizes the electromagnet, so that the locking ball is sucked under the action of the electromagnet. Afterwards, the locking ball is separated from the arc groove, and the position of the floor can be adjusted so that the floor can slide in the moving rod. When the electromagnet is powered off, the locking ball cooperates with the arc groove through the action of the spring to lock the position of the floor. The position of the floor is controlled by powering on, so that one end of the anchor rod is fixed and the other end is connected to an external force for tensile stress testing. Through the rotation cooperation of the connector and the connector cover, the test bench can adapt to the shape changes of the anchor rod when shearing or impact stress testing is performed on the anchor rod. This device is of great significance to deepening the research on the anchor rod support mechanism, improving the reliability of anchor rod support, and ensuring engineering safety. It can adapt to the shape changes of the anchor rod after being subjected to force at multiple angles, and is convenient for multi-directional pressure testing of the mechanical properties of the anchor rod with complex stress combinations such as tensile stress, bending stress, torsional stress, shear stress, and impact stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the main perspective structure of the utility model;

[0017] Figure 2This is a schematic diagram of the structure of the utility model from a side perspective;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the rotating disk of the utility model;

[0020] Figure 5 This is a schematic diagram of the inner cavity structure of the mobile rod of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the utility model from a top view;

[0022] Figure 7 This is a schematic diagram of the inner structure of the rotating disk of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-anchor rod, 2-electromagnet, 3-moving rod, 4-connecting head cover, 5-cover plate, 6-No. 2 V-rod, 7-connecting head, 8-No. 1 V-rod, 9-pull rod, 10-locking ball, 11-locking rod, 12-No. 2 outer frame, 13-No. 1 outer frame, 14-floor, 15-insertion rod, 16-drive motor, 17-motor mounting frame, 18-drive gear, 19-connecting plug shaft, 20-locking nut, 21-No. 2 mounting plate, 22-connecting short plate, 23-No. 1 mounting plate, 24-bolt, 25-spring, 26-spring cavity, 27-arc groove, 28-small shaft, 29-roller, 30-threaded jacket, 31-notch, 32-external teeth, 33-auxiliary frame, 34-small roller shaft, 35-small roller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7The utility model provides a technical solution: a comprehensive test bench for the mechanical properties of anchor rods, including an anchor rod 1 and a test bench, the test bench including a rotating base, a transverse moving frame and a rotating frame, the rotating base including a No. 1 V-shaped rod 8 and a No. 2 V-shaped rod 6, the No. 1 V-shaped rod 8 and the No. 2 V-shaped rod 6 are rotatably matched, the ends of the No. 1 V-shaped rod 8 and the No. 2 V-shaped rod 6 are fixedly installed with a moving rod 3, the inner cavity of the moving rod 3 is slidably matched with a transverse moving frame, the transverse moving frame includes a floor 14, the top of the floor 14 is fixedly plugged with a fixed frame, the fixed frame includes a No. 1 outer frame 13 and a No. 2 outer frame 12, the No. 1 outer frame 13 and the No. 2 outer frame 12 are fixedly connected by small shafts 28 at four corners, and the outer wall of the small shaft 28 is provided with a roller sleeve Cylinder 29, roller 29 and small shaft 28 rotate together, the rotating frame includes a rotating disk, the outer wall of the rotating disk cooperates with the roller 29, the middle part of the outer wall of the rotating disk is evenly provided with external teeth 32, and the outer ends of both sides of the rotating disk are provided with conical surfaces, and the inner cavity of the rotating disk is installed with a No. 1 mounting plate 23 and a No. 2 mounting plate 21, and the No. 1 mounting plate 23 and the No. 2 mounting plate 21 are fixedly connected by bolts 24, and the surrounding walls of the No. 1 mounting plate 23 are fixedly installed with a connecting short plate 22, and the other end of the connecting short plate 22 is fixedly connected to the inner cavity of the rotating disk, and the outer wall of the anchor rod 1 is provided with a movable sleeve, and the outer wall of the movable sleeve is fixedly installed with four groups of locking rods 11, and the other end of the locking rod 11 is located between the No. 1 mounting plate 23 and the No. 2 mounting plate 21.

[0027] Among them, a threaded sleeve 30 is fixedly installed on the outer end side wall of the movable sleeve, and a notch 31 is provided on the outer wall of the threaded sleeve 30. A locking nut 20 is provided on the outer wall of the anchor rod 1, and the locking nut 20 is threadedly matched with the threaded sleeve 30. A plurality of groups of round hole grooves are provided on the top of the floor 14, and a plurality of plug rods 15 are installed on the bottom of the fixed frame. The plug rods 15 cooperate with the round hole grooves. The floor 14 is provided with a plurality of groups of arc grooves 27. A plurality of groups of ball grooves are provided on the side wall of the moving rod 3, and a locking ball 10 is installed in the inner cavity of the ball groove. An electromagnet 2 is fixedly installed on the outer wall of the moving rod 3, and a spring cavity 26 is provided in the inner cavity of the moving rod 3. A plurality of groups of springs 25 are installed in the inner cavity of the spring cavity 26. One end of the spring 25 fits the inner wall of the spring cavity 26, and the other end of the spring 25 contacts the locking ball 10. The locking ball 10 is magnetically matched with the electromagnet 2 The outer wall of the No. 2 outer frame 12 is fixedly installed with a driving motor 16 through a motor mounting frame 17, and a driving gear 18 is fixedly installed at the output end of the driving motor 16, and the driving gear 18 is meshed with an outer tooth 32. An auxiliary frame 33 is fixedly installed in the middle of the outer wall of the No. 1 outer frame and the No. 2 outer frame, and a small roller shaft 34 is inserted in the auxiliary frame 33. A small roller 29 is rotatably installed on the outer wall of the small roller shaft, and the small roller 29 is movably matched with the conical surface of the rotating disk. A connecting head cover 4 is fixedly installed at the front end of the No. 1 V-shaped rod 8, and a connecting head 7 is fixedly installed at the front end of the No. 2 V-shaped rod 6, and the connecting head 7 is rotatably matched with the connecting head cover 4. A cover plate 5 is fixedly installed on the top of the connecting head 7, and a connecting plug shaft 19 is installed at the bottom of the cover plate 5, and the connecting plug shaft 19 is rotatably matched with the connecting head cover 4. A pull rod 9 is fixedly installed on the outer wall of the floor 14.

[0028] A specific application of this embodiment is as follows: the utility model installs movable sleeves on both sides of the anchor rod 1, installs locking nuts 20 on the outer wall of the movable sleeve, and fixes the movable sleeve to the anchor rod 1 through the threaded cooperation between the locking nuts 20 and the threaded sleeve 30; installs the locking rod 11 between the No. 1 mounting plate 23 and the No. 2 mounting plate 21, and fixes the No. 1 mounting plate 23 and the No. 2 mounting plate 21 through bolts 24; fixes the No. 1 mounting plate 23 to the rotating disk through the setting of the connecting short plate 22; stabilizes the position of the rotating disk through four groups of rollers 29 and four groups of small rollers 35; starts the driving motor 16, so that the driving motor 16 drives the driving gear 18 to rotate; adjusts the rotation angle of the anchor rod 1 through the cooperation between the driving gear 18 and the external teeth 32; twists the anchor rod 1 at one end through the two groups, so as to facilitate the testing of the torsional stress of the anchor rod 1; and energizes the electromagnet 2 so that the locking ball 10 is locked in the electromagnet 2. Under the action, after being adsorbed, the locking ball 10 is separated from the arc groove 27, and the position of the floor 14 can be adjusted so that the floor 14 can slide in the moving rod 3. When the electromagnet 2 is powered off, the locking ball 10 cooperates with the arc groove 27 through the action of the spring 25 to lock the position of the floor 14. The position of the floor 14 is controlled by power on, which makes it convenient to control one end of the anchor rod 1 to be fixed and the other end to be connected to an external force for tensile testing. Through the rotation cooperation of the connector 7 and the connector cover 4, it is convenient to perform shear or impact stress testing on the anchor rod 1, so that the test bench can adapt to the shape changes of the anchor rod 1. This device is of great significance to deepening the research on the anchor rod support mechanism, improving the reliability of anchor rod support, and ensuring engineering safety. It can adapt to the shape changes of the anchor rod 1 after being subjected to force at multiple angles, and is convenient for multi-directional pressure testing of the mechanical properties of the anchor rod 1 with complex stress combinations such as tensile stress, bending stress, torsional stress, shear stress, and impact stress.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A comprehensive test bench for mechanical properties of anchor rods, comprising an anchor rod (1) and a test bench, characterized in that: The test bench comprises a rotating base, a transverse moving frame and a rotating frame. The rotating base comprises a No. 1 V-shaped rod (8) and a No. 2 V-shaped rod (6). The No. 1 V-shaped rod (8) and the No. 2 V-shaped rod (6) are rotatably matched with each other. The ends of the No. 1 V-shaped rod (8) and the No. 2 V-shaped rod (6) are fixedly installed with moving rods (3). The inner cavity of the moving rod (3) is slidably matched with the transverse moving frame. The transverse moving frame comprises a floor (14). The top of the floor (14) is fixedly plugged with a fixed frame. The fixed frame comprises a No. 1 outer frame (13) and a No. 2 outer frame (12). The No. 1 outer frame (13) and the No. 2 outer frame (12) are fixedly connected by small shafts (28) at four corners. The outer wall of the small shaft (28) is provided with a roller (29). The roller (29) rotates with the small shaft (28). The rotating frame comprises a rotating disk, the outer wall of the rotating disk cooperates with the roller (29), the middle part of the outer wall of the rotating disk is evenly provided with external teeth (32), the outer ends of both sides of the rotating disk are provided with conical surfaces, the inner cavity of the rotating disk is installed with a No. 1 mounting plate (23) and a No. 2 mounting plate (21), the No. 1 mounting plate (23) and the No. 2 mounting plate (21) are fixedly connected by bolts (24), the surrounding walls of the No. 1 mounting plate (23) are fixedly installed with a connecting short plate (22), the other end of the connecting short plate (22) is fixedly connected to the inner cavity of the rotating disk, the outer wall of the anchor rod (1) is provided with a movable sleeve, the outer wall of the movable sleeve is fixedly installed with four groups of locking rods (11), and the other end of the locking rod (11) is located between the No. 1 mounting plate (23) and the No. 2 mounting plate (21).

2. The anchor bolt mechanical properties comprehensive test bench according to claim 1 is characterized by: A threaded sleeve (30) is fixedly mounted on the outer side wall of the movable sleeve, a notch (31) is formed on the outer wall of the threaded sleeve (30), a locking nut (20) is sleeved on the outer wall of the anchor rod (1), and the locking nut (20) is threadably matched with the threaded sleeve (30).

3. The anchor bolt mechanical properties comprehensive test bench according to claim 1 is characterized by: The top of the floor (14) is provided with a plurality of groups of circular hole grooves, and the bottom of the fixing frame is provided with a plurality of insertion rods (15), and the insertion rods (15) cooperate with the circular hole grooves.

4. The anchor bolt mechanical properties comprehensive test bench according to claim 1 is characterized by: The floor (14) is provided with a plurality of groups of arc grooves (27), the side wall of the moving rod (3) is provided with a plurality of groups of ball grooves, the inner cavity of the ball groove is provided with a locking ball (10), the outer wall of the moving rod (3) is fixedly provided with an electromagnet (2), the inner cavity of the moving rod (3) is provided with a spring cavity (26), the inner cavity of the spring cavity (26) is provided with a plurality of groups of springs (25), one end of the spring (25) is in contact with the inner wall of the spring cavity (26), the other end of the spring (25) is in contact with the locking ball (10), and the locking ball (10) is magnetically matched with the electromagnet (2).

5. The anchor bolt mechanical properties comprehensive test bench according to claim 1 is characterized by: A driving motor (16) is fixedly mounted on the outer wall of the second outer frame (12) via a motor mounting frame (17); a driving gear (18) is fixedly mounted on the output end of the driving motor (16); and the driving gear (18) is meshed with an outer tooth (32).

6. The anchor bolt mechanical properties comprehensive test bench according to claim 1 is characterized by: An auxiliary frame (33) is fixedly mounted on the middle of the outer wall of the first outer frame (13) and the second outer frame (12), a small roller shaft (34) is inserted into the auxiliary frame (33), a small roller (29) is rotatably mounted on the outer wall of the small roller shaft, and the small roller (29) is movably matched with the conical surface of the rotating disk.

7. The anchor bolt mechanical properties comprehensive test bench according to claim 1 is characterized by: A connecting head cover (4) is fixedly mounted on the front end of the No. 1 V-shaped rod (8), a connecting head (7) is fixedly mounted on the front end of the No. 2 V-shaped rod (6), the connecting head (7) and the connecting head cover (4) are rotatably matched, a cover plate (5) is fixedly mounted on the top of the connecting head (7), a connecting plug shaft (19) is mounted on the bottom of the cover plate (5), and the connecting plug shaft (19) and the connecting head cover (4) are rotatably matched.

8. The anchor bolt mechanical properties comprehensive test bench according to claim 1 is characterized by: A pull rod (9) is fixedly mounted on the outer wall of the floor (14).

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