Anchoring body pulling resistance detection device and detection method thereof

Abstract

The invention relates to the technical field of anchor body pulling resistance detection, and discloses an anchor body pulling resistance detection device and a detection method thereof.The upper end of a detection table is provided with limiting frames used for being in sliding connection with a left drawing frame and a right drawing frame in a front-back symmetry mode, and gear assemblies are arranged at notch grooves in the middles of the limiting frames; clamping and locking assemblies used for installing anchoring body assemblies are arranged in the middles of the inner sides of the left drawing frame and the right drawing frame correspondingly. The front portion and the rear portion of the cross-shaped groove are in sliding connection with an L-shaped shearing assembly. A pure mechanical meshing transmission structure is adopted, the displacement synchronization precision of the left drawing frame and the right drawing frame is high, additional bending moment generated by single-side drawing is avoided, detection errors are reduced, mechanical transmission is not interfered by electric control, stability can still be kept in severe environments such as a construction site, and detection data are more real and reliable. In the drawing process, the nut pushes the abutting assembly to move, the clamping arm is driven to automatically clamp the anchoring body through linkage of the skewed slot, the bolt does not need to be manually adjusted, the clamping time is shortened, and the detection efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anchorage body uplift detection, in particular to an anchorage body uplift detection device and a detection method thereof. BACKGROUND

[0002] In the fields of geotechnical engineering and building engineering, anchorage bodies (such as anchor rods and anchor cables) are core components that ensure the stability of structures, and the detection results of their uplift resistance and shear resistance directly determine the safety level of the project. However, the existing anchorage body detection equipment has many technical problems in actual application, and the specific problems are as follows: Poor pulling synchronization, large detection error: traditional detection equipment mostly uses a single hydraulic cylinder pulling structure, and the anchorage body is prone to eccentric deviation due to single-sided stress during pulling, resulting in additional bending moment (error ≥ 15%), which cannot truly reflect the uplift resistance of the anchorage body.

[0003] Complicated clamping operation, poor adaptability: the existing clamping structure needs to be manually adjusted by bolts or clamps to fix the anchorage body, and the clamping time is as long as 5-10 minutes per time; moreover, the clamps are fixed in size, and different diameters (10-50mm) of anchorage bodies require frequent replacement of clamps, which has high operation threshold and low efficiency, and cannot meet the diversified detection needs; at the same time, the coaxiality of the anchorage body after clamping is difficult to guarantee (coaxiality error ≥ 0.8mm), which further amplifies the detection error.

[0004] Single function, unable to simulate real stress scenarios: anchorage bodies often bear pulling force and shear force simultaneously in actual engineering, but existing equipment can only detect uplift resistance or shear resistance, and complete performance data can only be obtained by two-time detection, which cannot restore the real stress state of the anchorage body. Therefore, we propose an anchorage body uplift detection device and a detection method thereof. SUMMARY

[0005] The purpose of the present application is to provide an anchorage body uplift detection device and a detection method thereof to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: An anchorage body uplift detection device, an anchorage body uplift detection device, comprising a detection table, the upper end of the detection table is symmetrically provided with a limiting frame for slidingly connecting a left pulling frame and a right pulling frame, a gear assembly is arranged at the notch slot in the middle of the limiting frame, and the gear assembly is used to realize the meshing of the left pulling frame and the right pulling frame; The inner middle part of the left pulling frame and the right pulling frame is provided with a clamping and locking assembly for mounting an anchorage body assembly; The detection table is provided with a cross recess in the middle, and an L-shaped shear assembly is slidingly connected to the front and rear parts of the cross recess, and the outer side end of the L-shaped shear assembly is movably connected with the inner wall of the right pulling frame; When the hydraulic cylinder on the detection table pulls the anchoring body assembly through the left pulling frame, the left pulling frame drives the right pulling frame to pull the anchoring body assembly synchronously through the gear assembly, so that the left and right symmetrically arranged clamping and locking assemblies coaxially lock and fix the anchoring body assembly, and meanwhile, the right pulling frame drives the L-shaped shearing assembly to tightly press the anchoring body assembly from the front and back sides, thereby simulating the shearing force received by the anchoring body assembly in the installation state.

[0007] Preferably, the hydraulic cylinder is centrally fixed on the left side of the upper end of the detection table by a reinforcing rib plate, and the piston rod at the output end of the hydraulic cylinder is connected to the middle part of the right pulling frame.

[0008] Preferably, the first rack on the front and back sides of the left pulling frame is slidably connected to the inside of the limiting frame, and the second rack on the front and back sides of the right pulling frame is slidably connected to the inside of the limiting frame. The gear assembly comprises a driving gear meshed between the corresponding first rack and second rack, and the driving gear is movably connected to the notch groove by a shaft centrally fixed at the bottom.

[0009] Preferably, the anchoring body assembly comprises an anchor rod and nuts screwed on both ends of the anchor rod. The clamping and locking assembly comprises a limiting cylinder fixed at the middle part of the inside of the left and right pulling frames, and a abutting assembly and a clamping assembly movably connected at equal intervals are arranged on the limiting cylinder. The anchor rod is arranged in the corresponding limiting cylinder, and when the left and right two clamping and locking assemblies pull the anchoring body assembly, the nut pushes the corresponding abutting assembly to move relative to the limiting cylinder, so that the abutting assembly drives the clamping assembly to clamp the anchor rod, thereby achieving coaxial locking and fixing of the anchoring body assembly and the left and right two clamping and locking assemblies.

[0010] The inside end of the limiting cylinder is open, a first avoiding groove is centrally arranged at the top of the limiting cylinder, and a second avoiding groove is arranged at the outside end of the first avoiding groove.

[0011] Preferably, a through groove is arranged at equal intervals on the limiting cylinder, and a U-shaped sliding groove is symmetrically arranged at the inside end of the limiting cylinder. The abutting assembly comprises a semicircular abutting ring slidably connected to the inner wall of the limiting cylinder, an outer ring arc-shaped seat fixed by a sliding block at the outside wall of the semicircular abutting ring, and a U-shaped seat arranged at equal intervals at the inside end of the outer ring arc-shaped seat. The outer ring arc-shaped seat is slidably connected to the outer wall of the limiting cylinder, and the sliding block is slidably connected to the corresponding U-shaped sliding groove. The clamping assembly comprises a clamping arm movably connected to the through groove by a first pin shaft, the inside end of the clamping arm extends into the inside of the limiting cylinder through the through groove, a clamping protrusion is arranged on the inner wall of the inside end of the clamping arm, the outside end of the clamping arm extends into the corresponding U-shaped seat through the through groove after extending out of the limiting cylinder, and a second pin shaft of the outside end of the clamping arm is slidably connected to a first inclined groove in the U-shaped seat.

[0012] Preferably, the L-shaped shearing assembly comprises a front and rear sliding L-shaped shearing seat of a cross recess, and upper and lower two groups of connecting lug plates are arranged on the upper part of the outer side end of the L-shaped shearing seat; A connecting block is fixed on the inner wall of the second rack, the connecting block extends from the inner side of the notch groove to the inner of the upper and lower two groups of connecting lug plates, and the third pin shaft on the inner side end of the connecting block is slidably connected to the second inclined groove on the connecting lug plate.

[0013] The application also provides a detection method of the anchor body uplift detection device, and specifically comprises the following steps: S1, placing both ends of the anchor body assembly in the clamping and locking assembly; S2, the left pulling frame pulls the anchor body assembly, and the right pulling frame is also pulled synchronously by the gear assembly, so that the coaxially locking and fixing of the anchor body assembly is realized by the left and right symmetrical clamping and locking assemblies; S3, at the same time, the right pulling frame drives the L-shaped shearing assembly to tightly press the anchor body assembly from the front and rear sides, so as to simulate the shearing force received by the anchor body assembly in the installation state.

[0014] Compared with the prior art, the application has the following beneficial effects: The application adopts a pure mechanical meshing transmission structure of "first rack + driving gear + second rack", the displacement synchronization accuracy of the left and right pulling frames can reach ±0.1 mm, the additional bending moment generated by unilateral pulling is avoided, the detection error is reduced by 30%, and the application is far superior to the traditional unilateral pulling equipment (error ≥ 15%); and the mechanical transmission is not disturbed by electric control, and can still remain stable in harsh environments such as construction sites, and the detection data is more real and reliable.

[0015] Automatic clamping, efficiency improvement: during the pulling process, the nut drives the abutting assembly to move, the clamping arm is automatically clamped by the inclined groove linkage, manual adjustment of the bolt is not required, the clamping time is shortened from 5-10 minutes to 1 minute, the detection efficiency is greatly improved; and the clamping force is linked with the pulling force, the greater the pulling force, the stronger the clamping force, and the uncertainty of manual adjustment of the clamping force is avoided.

[0016] Self-adaptive multi-specification, no need to change the clamp: the clamping arms arranged at equal intervals can automatically adjust the clamping range according to the diameter (10-50 mm) of the anchor body, adapt to mainstream anchor body specifications, and do not need to frequently change the clamp; at the same time, the coaxiality error of the anchor body after clamping is ≤0.2 mm, the pulling force is ensured to be transmitted along the axis, and the detection accuracy is further improved.

[0017] The L-shaped shearing assembly is synchronously driven by the movement of the right pulling frame, without an additional shearing driving system, realizes the integrated detection of "pulling force-shearing force", does not need to detect twice, improves the detection efficiency, accurately simulates the composite stress field of the anchoring body in the actual engineering, the detection data is more in line with the actual engineering requirements, and provides a more comprehensive basis for engineering safety evaluation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a state structure schematic diagram that the anchoring body assembly is placed into the clamping and locking assembly of the application; Figure 2 It is an exploded structure schematic diagram of the whole of the application; Figure 3 It is a structure schematic diagram that the detection table and the limiting frame are provided; Figure 4 It is an exploded structure schematic diagram of the clamping and locking assembly of the application; Figure 5 It is a three-dimensional structure schematic diagram of the whole of the clamping and locking assembly of the application; Figure 6 It is a three-dimensional structure schematic diagram that the abutting assembly and the clamping assembly are connected; Figure 7 It is a three-dimensional structure schematic diagram of the whole of the application; Figure 4 It is a three-dimensional structure schematic diagram of another perspective; Figure 8 It is a three-dimensional structure schematic diagram of the whole of the application; Figure 5 It is a three-dimensional structure schematic diagram of another perspective; Figure 9 It is a three-dimensional structure schematic diagram of the whole of the application; Figure 6 It is a three-dimensional structure schematic diagram of another perspective; Figure 10 It is a structure schematic diagram that the gear assembly, the left pulling frame, the right pulling frame and the L-shaped shearing assembly are connected; Figure 11 It is a three-dimensional structure schematic diagram that the anchoring body assembly is placed in the clamping and locking assembly of the application; Figure 12 It is a three-dimensional structure schematic diagram of the whole of the application; Figure 11 It is a three-dimensional structure schematic diagram that the anchoring body assembly and the clamping and locking assembly are connected; Figure 13 It is a state structure schematic diagram that the pulling test is carried out; Figure 14 It is a three-dimensional structure schematic diagram of the whole of the application; Figure 13 It is a three-dimensional structure schematic diagram that the anchoring body assembly and the clamping and locking assembly are connected; Figure 15 It is a three-dimensional structure schematic diagram of the whole of the application; Figure 13 It is a three-dimensional structure schematic diagram of another perspective.

[0019] In the figure: 1, detection table; 101, cross recess; 2, limiting frame; 201, notch groove; 3, clamping and locking assembly; 301, limiting cylinder; 302, through groove; 303, U-shaped sliding groove; 304, first avoiding groove; 305, second avoiding groove; 306, clamping arm; 307, first pin shaft; 308, second pin shaft; 309, clamping protrusion; 310, semicircular abutting ring; 311, sliding block; 312, U-shaped seat; 313, first inclined groove; 314, outer ring arc-shaped seat; 4, anchor rod; 5, L-shaped shearing seat; 501, connecting ear plate; 502, second inclined groove; 6, hydraulic cylinder; 7, driving gear; 701, rotating shaft; 8, nut; 9, left drawing frame; 901, first rack; 10, right drawing frame; 1001, second rack; 1002, connecting block; 1003, third pin shaft; 11, reinforcing plate; 12, piston rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Embodiment: Please refer to Figures 1-15 The present application provides a technical solution: The anchor body uplift detection device comprises a detection table 1, and limiting frames 2 symmetrically arranged on the upper end of the detection table 1 are used for slidingly connecting left and right drawing frames 9 and 10; notch grooves 201 in the middle of the limiting frames 2 are provided with gear assemblies, and the gear assemblies are used for achieving the meshing of the left and right drawing frames 9 and 10. The hydraulic cylinder 6 is controlled by PLC, and the hydraulic cylinder 6 is fixed in the middle of the upper end of the detection table 1 by the reinforcing plate 11, and the piston rod 12 at the output end of the hydraulic cylinder 6 is connected to the middle of the right drawing frame 10.

[0022] The first racks 901 on the left and right sides of the left drawing frame 9 are slidingly connected in the limiting frames 2, and the second racks 1001 on the left and right sides of the right drawing frame 10 are slidingly connected in the limiting frames 2. The gear assembly comprises a driving gear 7 meshing between the corresponding first and second racks 901 and 1001, and the driving gear 7 is movably connected to the notch groove 201 by a rotating shaft 701 fixed in the middle of the bottom.

[0023] Through the meshing of the driving gear 7 and the first and second racks 901 and 1001, the displacement synchronization accuracy of the left and right drawing frames 9 and 10 is ±0.1 mm, the eccentricity of the anchor body assembly caused by unilateral drawing is avoided, and the detection error is reduced by 30%. The double-pulling frame symmetrically applies force, and the pulling force is transmitted along the anchor assembly axis, ensuring that the detection data reflects the true uplift resistance (the traditional single-side pulling is prone to additional bending moment due to eccentricity, with an error of ≥15%).

[0024] The inner middle part of the left pulling frame 9 and the right pulling frame 10 is provided with a clamping and locking assembly 3 for mounting the anchor assembly; The anchor assembly comprises an anchor rod member 4 and a nut 8 screwed at both ends of the anchor rod member 4; The clamping and locking assembly 3 comprises a limiting cylinder 301 fixed in the inner middle part of the left pulling frame 9 and the right pulling frame 10, an abutting assembly provided on the limiting cylinder 301, and a clamping assembly movably connected at equal intervals; The anchor rod member 4 is provided at both ends in the corresponding limiting cylinder 301. When the left and right clamping and locking assemblies 3 pull the anchor assembly, the nut 8 pushes the corresponding abutting assembly to move relative to the limiting cylinder 301, so that the abutting assembly drives the clamping assembly to clamp the anchor rod member 4, thereby achieving coaxial locking and fixing of the anchor assembly and the left and right clamping and locking assemblies 3.

[0025] The inner side end of the limiting cylinder 301 is provided in an open manner, the top of the limiting cylinder 301 is provided with a first avoiding groove 304 in the middle, and the outer side end of the first avoiding groove 304 is provided with a second avoiding groove 305.

[0026] The limiting cylinder 301 is provided with a through groove 302 at equal intervals, and the inner side end of the limiting cylinder 301 is provided with a U-shaped sliding groove 303 symmetrically; The abutting assembly comprises a semicircular abutting ring 310 slidingly connected to the inner wall of the limiting cylinder 301, an outer ring arc-shaped seat 314 fixed to the outer wall of the semicircular abutting ring 310 by a sliding block 311, and a U-shaped seat 312 provided at equal intervals on the inner side end of the outer ring arc-shaped seat 314; Since the semicircular abutting ring 310 is slidingly connected to the inner wall of the limiting cylinder 301, and the outer ring arc-shaped seat 314 is slidingly connected to the outer wall of the limiting cylinder 301, the sliding block 311 is slidingly connected to the corresponding U-shaped sliding groove 303. In this way, the semicircular abutting ring 310 can only move along the axis direction of the limiting cylinder 301, avoiding uneven force on the clamping arm 306 due to the offset of the semicircular abutting ring 310.

[0027] The clamping assembly comprises a clamping arm 306 movably connected to the through groove 302 by a first pin shaft 307, the inner side end of the clamping arm 306 extends into the inside of the limiting cylinder 301 through the through groove 302, and a clamping protrusion 309 is provided on the inner wall of the inner side end of the clamping arm 306. The clamping protrusion 309 increases the friction with the anchor rod member 4, and the nut 8 is clamped at the outer side end of the corresponding semicircular abutting ring 310, avoiding slipping of the anchor assembly during pulling (the slipping rate is reduced from 8% of the traditional equipment to 0); The outer side end of the clamping arm 306 extends to the corresponding U-shaped seat 312 through the through slot 302 and the limiting cylinder 301, and the second pin shaft 308 of the outer side end of the clamping arm 306 is slidably connected to the corresponding first inclined slot 313 of the U-shaped seat 312.

[0028] Automatic locking: no manual adjustment is needed, and clamping is automatically realized during the drawing process (the clamping force is linked with the drawing force), and the clamping time is shortened from 5-10 minutes of the traditional equipment to 1 minute; Self-adaptive adaptation: the clamping arm 306 can automatically adjust the clamping range according to the diameter of the anchor rod piece 4 (adapt to the diameter of 10-50 mm), without the need to replace the clamp, and the universality of the equipment is improved.

[0029] The middle part of the detection table 1 is provided with a cross recess 101, and the front and rear parts of the cross recess 101 are slidably connected with L-shaped shearing assemblies, and the outer side ends of the L-shaped shearing assemblies are movably connected with the inner wall of the right drawing frame 10. The L-shaped shearing assembly comprises an L-shaped shearing seat 5 slidably connected with the front and rear parts of the cross recess 101, and the outer side end of the L-shaped shearing seat 5 is provided with two sets of connecting ear plates 501. The inner wall of the second rack 1001 is fixedly connected with a connecting block 1002, the connecting block 1002 extends to the two sets of connecting ear plates 501 from the inner side of the notch groove 201, and the third pin shaft 1003 on the inner side end of the connecting block 1002 is slidably connected with the second inclined slot 502 on the connecting ear plate 501.

[0030] When the hydraulic cylinder 6 on the detection table 1 draws the anchoring body assembly through the left drawing frame 9, the right drawing frame 10 is also driven by the gear assembly to draw the anchoring body assembly synchronously, so that the coaxially locking and fixing of the anchoring body assembly is realized by the left-right symmetrical clamping and locking assemblies 3, and at the same time, the L-shaped shearing assembly is driven by the right drawing frame 10 to tightly press the anchoring body assembly from the front and rear sides, so as to simulate the shearing force received by the anchoring body assembly in the installation state.

[0031] The present application also provides a detection method of the anchoring body anti-pulling force detection device, which specifically comprises the following steps: S1, the two ends of the anchoring body assembly are placed in the clamping and locking assembly 3; S2, the hydraulic cylinder 6 drives the left drawing frame 9 to draw the anchoring body assembly, and the right drawing frame 10 is also driven by the gear assembly to draw the anchoring body assembly synchronously, so that the coaxially locking and fixing of the anchoring body assembly is realized by the left-right symmetrical clamping and locking assemblies 3; S3, at the same time, the L-shaped shearing assembly is driven by the right drawing frame 10 to tightly press the anchoring body assembly from the front and rear sides, so as to simulate the shearing force received by the anchoring body assembly in the installation state.

[0032] Specifically, in use: 1. Pretreatment stage: preliminary clamping of the anchoring body assembly.

[0033] Before detection, the anchoring body assembly (anchor rod 4 + two end nuts 8) to be detected is accurately placed in the clamping and locking assembly 3, laying the foundation for subsequent synchronous pulling and locking. The operation process is as follows: Assembly positioning: the clamping assembly (clamping arm 306) is in a retracted state, i.e. the clamping arm 306 is in close contact with the inner wall of the limiting cylinder 301, and the clamping protrusion 309 is not in contact with the surface of the anchor rod 4. In the retracted state of the clamping assembly, the two ends of the anchor rod 4 are prepared to be placed in the limiting cylinder 301 through the first retracted slot 304. The two ends of the anchor rod 4 are placed in the limiting cylinder 301 inside the left pulling frame 9 and the right pulling frame 10 respectively through the first retracted slot 304. The second retracted slot 305 ensures the placement of the nuts 8 at the two ends of the anchor rod 4, and makes the nuts 8 located at the outer side end of the corresponding semicircular abutting ring 310 (as shown in Figure 11 and 12 ).

[0034] 2. Synchronous pulling and coaxial locking of the anchoring body assembly.

[0035] After starting the hydraulic cylinder 6, the synchronous reverse movement of the left pulling frame 9 and the right pulling frame 10 is realized through the meshing transmission of the gear assembly, and then the clamping and locking assembly 3 automatically locks the anchoring body assembly coaxially. The specific process is as follows: Power input and synchronous transmission: the piston rod 12 of the hydraulic cylinder 6 (fixed by the reinforcing plate 11, the output force is stable) retracts, moving the left pulling frame 9 to the left along the limiting frame 2 (the first rack 901 on the front and back sides of the left pulling frame 9 slides along the inner wall of the limiting frame 2). The first rack 901 meshes with the drive gear 7 in the notch slot 201, driving the drive gear 7 to rotate around the rotation shaft 701. The drive gear 7 meshes with the second rack 1001 of the right pulling frame 10, making the right pulling frame 10 move to the right along the limiting frame, and finally realizing the "reverse synchronous movement" (synchronous displacement accuracy ±0.1mm) of the left pulling frame 9 and the right pulling frame 10, avoiding the deviation of the anchoring body assembly caused by unilateral pulling.

[0036] Automatic coaxial locking: as the left pulling frame 9 and the right pulling frame 10 move away from each other, the nut 8 pushes the semicircular abutting ring 310 in the limiting cylinder 301, making the semicircular abutting ring 310 move to the inner end of the limiting cylinder 301 relative to the limiting cylinder 301, and driving the outer ring arc seat 314 (sliding along the U-shaped sliding groove 303 through the sliding block 311) outside the semicircular abutting ring 310 to move synchronously. The U-shaped seat 312 on the outer ring arc seat 314 moves with it, and the first inclined slot 313 on the U-shaped seat 312 pushes the clamping arm 306 to rotate around the first pin shaft 307 through the second pin shaft 308. The clamping protrusions 309 at the inner ends of the clamping arms 306 in the several groups arranged at equal intervals are close to the surface of the anchor rod member 4, and finally tightly clamp the anchor rod member 4 (the clamping force increases with the increase of the pulling force), so as to realize the “coaxial locking” (the coaxiality error is less than or equal to 0.2 mm) of the anchoring body assembly and the clamping and locking assembly 3, ensure the transmission of the pulling force along the axis of the anchoring body assembly, and avoid detection errors caused by eccentricity.

[0037] 3. Synchronous shear force simulation.

[0038] During the pulling and locking process, the movement of the right pulling frame 10 synchronously drives the L-shaped shear assembly to exert a shear force on the anchor rod member 4, simulates the stress state of the anchor rod member 4 during actual installation (such as the anchor rod member 4 being subjected to pulling force and shear force in rock and soil engineering), and the specific logic is as follows: L-shaped shear assembly linkage: when the right pulling frame 10 moves to the right, the connecting block 1002 in the inner wall of the second rack 1001 synchronously moves; the third pin shaft 1003 in the inner side of the connecting block 1002 slides in the second inclined groove 502 of the connecting lug plate 501 of the L-shaped shear seat 5, and converts the “horizontal movement” of the right pulling frame 10 into the “movement perpendicular to the axis of the anchor rod member 4” of the L-shaped shear seat 5. Shear force exertion: the front and rear groups of L-shaped shear seats 5 approach each other along the front and rear parts of the cross recess 101 of the detection table 1, and tightly press the middle region of the anchor rod member 4 from the front and rear sides (the shear contact area can be adjusted by the size of the L-shaped shear seat 5), the shear force is proportional to the displacement of the right pulling frame 10 (which can be indirectly controlled by the pressure of the hydraulic cylinder 6), and the “pulling force-shear force” is applied coordinately to restore the real stress field of the anchoring body assembly.

[0039] 4. Data acquisition and detection are completed.

[0040] During the pulling and shearing process, the key data are collected in real time through a plurality of groups of sensors, the force sensor on the hydraulic cylinder 6 records the pulling force, the shear force sensor on the L-shaped shear seat 5 collects shear force data, and all data are transmitted to the PLC control system in real time, so as to facilitate real-time monitoring by the operator.

[0041] When the anchoring body assembly reaches the limit load (such as breakage, shear failure, etc.), the system automatically records the maximum pulling force and the corresponding shear force at this time, which is the pullout resistance and shear resistance detection result of the anchoring body assembly.

[0042] After detection, the piston rod 12 of the hydraulic cylinder 6 is extended to reset, driving the left drawing frame 9 to move to the right, and through the gear assembly transmission, the right drawing frame 10 moves to the left, and each component moves reversely. The semicircular abutting ring 310 is no longer extruded by the nut 8, the outer ring arc-shaped seat 314 is manually actuated to make the abutting assembly move to the outside end of the limiting cylinder 301 relative to the limiting cylinder 301, until the clamping and locking assembly 3 returns to the avoiding state, the L-shaped shearing seat 5 resets along the cross recess, the anchoring body assembly is loosened, and the device returns to the initial state, and the next detection can be performed.

[0043] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An anchorage body uplift force detection device comprising a detection platform, characterized in that: The upper end of the detection table is symmetrically provided with a limiting frame for slidingly connecting the left and right pulling frames, and a gear assembly is arranged in the notch groove in the middle of the limiting frame, which is used to realize the engagement of the left and right pulling frames. The middle of the inner side of the left and right pulling frames is provided with a clamping and locking assembly for mounting the anchoring body assembly. The middle of the detection table is provided with a cross recess, and an L-shaped shearing assembly is slidingly connected to the front and rear parts of the cross recess, and the outer end of the L-shaped shearing assembly is movably connected to the inner wall of the right pulling frame. When the hydraulic cylinder on the detection table pulls the anchoring body assembly through the left pulling frame, the right pulling frame is also driven by the gear assembly to pull the anchoring body assembly synchronously, so that the coaxially locking and fixing of the anchoring body assembly by the left and right symmetrically arranged clamping and locking assemblies is realized, and at the same time, the L-shaped shearing assembly is driven by the right pulling frame to tightly press the anchoring body assembly from the front and rear sides, thereby simulating the shearing force received by the anchoring body assembly in the installed state.

2. The uplift force detection device for an anchor body according to claim 1, characterized in that: The hydraulic cylinder is fixed in the middle of the left side of the upper end of the detection table by a reinforcing rib plate, and the piston rod at the output end of the hydraulic cylinder is connected to the middle of the right pulling frame.

3. The uplift force detection device for an anchor body according to claim 1, characterized in that: The first rack on the left and right sides of the left pulling frame is slidingly connected to the inside of the limiting frame, and the second rack on the left and right sides of the right pulling frame is slidingly connected to the inside of the limiting frame. The gear assembly comprises a driving gear engaged between the corresponding first and second racks, and the driving gear is movably connected to the notch groove by a shaft fixed in the middle of the bottom.

4. The uplift detection device of claim 1, wherein: The anchoring body assembly comprises an anchor rod and nuts screwed on both ends of the anchor rod. The clamping and locking assembly comprises a limiting cylinder fixed in the middle of the inner side of the left and right pulling frames, and a resisting assembly and a clamping assembly movably connected at equal intervals are arranged on the limiting cylinder. The anchor rod is arranged in the corresponding limiting cylinder at both ends, and when the left and right clamping and locking assemblies pull the anchoring body assembly, the nut pushes the corresponding resisting assembly to move relative to the limiting cylinder, so that the resisting assembly drives the clamping assembly to clamp the anchor rod, thereby realizing the coaxial locking and fixing of the anchoring body assembly and the left and right clamping and locking assemblies.

5. The uplift detection device of claim 4, wherein: The inner side of the limiting cylinder is open, a first avoiding groove is arranged in the middle of the top of the limiting cylinder, and a second avoiding groove is arranged at the outer end of the first avoiding groove.

6. The uplift detection device of claim 4, wherein: Equal-interval through grooves are arranged on the limiting cylinder, and U-shaped sliding grooves are symmetrically arranged on the inner side of the limiting cylinder. The resisting assembly comprises a semicircular resisting ring slidingly connected to the inner wall of the limiting cylinder, an outer ring arc-shaped seat with a sliding block fixed on the outer wall of the semicircular resisting ring, and a U-shaped seat arranged at equal intervals on the inner side end of the outer ring arc-shaped seat. The outer ring arc-shaped seat is slidingly connected to the outer wall of the limiting cylinder, and the sliding block is slidingly connected to the corresponding U-shaped sliding groove. The clamping assembly comprises a clamping arm movably connected to the through groove by a first pin shaft, the inner side end of the clamping arm extends into the inside of the limiting cylinder through the through groove, and a clamping protrusion is arranged on the inner wall of the inner side end of the clamping arm, the outer side end of the clamping arm extends into the corresponding U-shaped seat through the through groove, and a second pin shaft of the outer side end of the clamping arm is slidingly connected to the first inclined groove in the U-shaped seat.

7. The uplift force detection device of an anchor according to claim 3, wherein: The L-shaped shearing assembly comprises an L-shaped shearing seat slidingly connected to the front and rear parts of the cross recess, and upper and lower connecting ear plates are arranged on the outer side end of the L-shaped shearing seat. The second rack inner wall is fixed with a connecting block, the connecting block extends from the inner side of the notch groove to the upper and lower two groups of connecting ear plates, and the third pin shaft on the inner side end of the connecting block is slidably connected to the second inclined groove on the connecting ear plate.

8. A method of detecting the uplift force of an anchoring body based on the device according to any one of claims 1 to 7, characterized in that: Specifically comprising the following steps: S1, placing both ends of the anchoring body assembly inside the clamping and locking assembly; S2, the left pulling frame pulls the anchoring body assembly, and the right pulling frame is also driven by the gear assembly to pull the anchoring body assembly synchronously, so that the coaxially locking and fixing of the anchoring body assembly is realized by the left and right symmetrical clamping and locking assemblies; S3, at the same time, the right pulling frame drives the L-shaped shearing assembly to tightly press the anchoring body assembly from the front and back sides, simulating the shearing force received by the anchoring body assembly in the installation state.

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