CN220305029U - Anchor rod drawing test device - Google Patents
Anchor rod drawing test device Download PDFInfo
- Publication number
- CN220305029U CN220305029U CN202322296850.8U CN202322296850U CN220305029U CN 220305029 U CN220305029 U CN 220305029U CN 202322296850 U CN202322296850 U CN 202322296850U CN 220305029 U CN220305029 U CN 220305029U
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- anchor rod
- base
- steel wire
- rod
- sliding block
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 238000007586 pull-out test Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims 6
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005065 mining Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to an anchor rod drawing test device, which is characterized in that: the device comprises a base and a vertical sliding rail arranged on the base, wherein a sliding block is connected onto the vertical sliding rail in a sliding manner, a driving mechanism for driving the sliding block to slide on the vertical sliding rail is arranged on the base, a concrete member is fixedly arranged at the side of the base, a vertically arranged anchor rod is embedded in the concrete member, the anchor rod is provided with an exposed section exposed out of the concrete member, a perforation is formed in the upper part of the exposed section of the anchor rod, the lower end of at least one steel wire is connected in the perforation, the upper end of the steel wire is wound and connected onto a cylindrical member, and the cylindrical member is connected onto the sliding block; the utility model has simple installation and disassembly and easy operation, the surface of the device is provided with scales, the drawing length of the anchor rod can be obtained without the cooperation of other instruments, and the workload of manual measurement is effectively reduced; in addition, the device preferably adopts a hydraulic driving mechanism, so that the pulling resistance of the anchor rod can be conveniently calculated.
Description
Technical field:
the utility model relates to an anchor rod drawing test device.
The background technology is as follows:
at present, the anchor rod is fixed by the pull-out test device by clamping the anchor rod by the clamp, and if the compressive strength of the anchor rod is insufficient, the anchor rod is easily pinched off by the clamp in the pull-out test device, so that the measurement accuracy is influenced, and even the measurement fails.
The concrete advantage and the deficiency of the anchor rod pulling resistance test by adopting the existing pulling test device are expressed as follows:
(1) The prior drawing test device has the advantages that: the method is suitable for the bars (namely anchor rods) with different diameters, the installation mode is simple, the operation steps are simple and convenient, and only two ends of the bar are required to be put into a clamp to be clamped, and then a tensile test is carried out;
(2) The existing tensile test device has the defects that: when the anchor rod of low compressive strength is tested, current drawing test device anchor clamps easily pinch off the anchor rod, influence measurement accuracy, and even measurement failure.
The currently retrieved chinese patent: the utility model discloses a mining anchor rod integral drawing test device, which relates to the field of mining anchor rod tests and is invented for providing an adaptive test device for a mining anchor rod. The mining anchor rod integral drawing test device comprises: the device comprises a movable beam (1), a first guide rail (2), a drawing oil cylinder (3), a pull rod (4), an oil cylinder seat (5), a cross beam (6), a front chuck (7), a rear chuck (8) and a pin roll (9); wherein the movable beam (1) is provided with a first roller (10) which can roll along the first guide rail (2); the oil cylinder seat (5) is fixedly connected to the cross beam (6); the device is characterized in that a second guide rail (11) is paved on the cross beam (6), a row of first pin shaft holes (12) are formed in the cross beam (6), and the whole drawing test device for the mining anchor rod is characterized in that the device achieves the whole drawing performance test function for the mining anchor rod, is simple in structure and is adjustable in test height; but the front clamping head (7) and the rear clamping head (8) are easy to pinch off the anchor rod when clamping the anchor rod with low compressive strength, so that the device cannot be applied to testing the pulling resistance of the anchor rod with low compressive strength.
Therefore, in order to better test the anti-pulling performance of the anchor rod with low compressive strength, it is necessary to design a pull-out test device for clamping the bar materials in other modes.
The utility model comprises the following steps:
therefore, the utility model aims to provide the anchor rod drawing test device which is reasonable in design and is beneficial to testing the anti-drawing performance of the anchor rod with low compressive strength.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model relates to an anchor rod drawing test device, which is characterized in that: including the base with establish the vertical slide rail on the base, sliding connection has the slider on the vertical slide rail, be equipped with the drive slider on the base gliding actuating mechanism on the vertical slide rail, the fixed concrete member that is equipped with of side of base, the concrete member pre-buried has the stock of vertical setting, and the stock has the exposed section of exposing outside the concrete member, stock exposed section upper portion is equipped with the perforation, connect the lower extreme of at least one steel wire in the perforation, the upper end winding of steel wire is connected on the cylindricality component, the cylindricality component is connected on the slider.
Preferably, the driving mechanism is a hydraulic driving mechanism, and a telescopic rod of the hydraulic driving mechanism acts on the sliding block.
Preferably, the driving mechanism is a screw-nut mechanism, a screw rod of the screw-nut mechanism is in threaded connection with the sliding block, and the sliding block vertically moves upwards under the rotation of the screw rod of the screw-nut mechanism.
Preferably, the cylindrical member is a cylindrical rigid rod, two ends of the cylindrical rigid rod are sleeved with lantern rings, the upper ends of the lantern rings are fixedly connected with the sliding blocks, and the middle section of the cylindrical rigid rod is wound around the upper ends of the steel wires; or the middle section of the cylindrical rigid rod is sleeved with a lantern ring, the upper end of the lantern ring is fixedly connected with the sliding block, and the two ends of the cylindrical rigid rod are wound on the upper end of the steel wire.
Preferably, the perforation at the upper part of the exposed section of the anchor rod is a vertically intersected perforation, the axial lead of the vertically intersected perforation is vertical to the axial lead of the anchor rod, and one or more groups of vertically intersected perforation are arranged in the length direction of the anchor rod.
Preferably, the steel wire is a high-strength steel wire.
Preferably, the base is provided with a display, and the display is used for displaying the thrust of the driving mechanism acting on the sliding block.
Preferably, the base is provided with a length mark along the vertical sliding rail direction.
The utility model relates to an installation and use method of an anchor rod drawing test device, which comprises the following steps:
(1) Drilling holes at the corresponding positions of the upper part of an anchor rod (an object to be tested) with the lower part embedded in a concrete member, enabling the first end of a high-strength steel wire to pass through the corresponding holes, and winding the second end of the high-strength steel wire on a cylindrical member;
(2) Clamping the cylindrical member by using a clamp or a lantern ring, ensuring that the clamp (lantern ring), the cylindrical member, the high-strength steel wire and the anchor rod do not generate relative displacement, and recording initial scales;
(3) The drive mechanism (hydraulic drive mechanism) was turned on and the test was started, and the hydraulic drive mechanism was pressurized at a rate of 1kN/s until the anchor rod pulled out the concrete member.
(4) And recording drawing force data in the display and scale values marked by the length on the base.
The utility model effectively solves the problem that the anchor rod is easy to pinch off because the anchor rod is clamped by the clamp of the drawing instrument to be drawn when the compressive strength of the anchor rod is insufficient (low compressive strength anchor rod) in the drawing test process; the utility model has simple installation and disassembly and easy operation, the surface of the device is provided with scales, the drawing length of the anchor rod can be obtained without the cooperation of other instruments, and the workload of manual measurement is effectively reduced; in addition, the device preferably adopts a hydraulic driving mechanism, so that the pulling resistance of the anchor rod can be conveniently calculated.
The present utility model will be further described in detail below with reference to specific examples and associated drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Description of the drawings:
FIG. 1 is a schematic diagram of a front view configuration of an embodiment of the present utility model;
FIG. 2 is a schematic view of the partial construction of FIG. 1;
FIG. 3 is a schematic top view of the anchor rod;
FIG. 4 is a schematic view of an embodiment of the connection of the cylindrical member to the collar, steel wire;
fig. 5 is a schematic view of another embodiment configuration of the connection of the cylindrical member with the collar, wire.
The specific embodiment is as follows:
the anchor rod drawing test device comprises a base 1 and a vertical sliding rail 7 arranged on the base, wherein a sliding block 8 is connected to the vertical sliding rail in a sliding way, a driving mechanism 6 for driving the sliding block to slide on the vertical sliding rail is arranged on the base, a concrete member 10 is fixedly arranged at the side of the base 1, an anchor rod 5 which is vertically arranged is pre-embedded in the concrete member 10, an exposed section exposed out of the concrete member is arranged on the anchor rod, a perforation 11 is arranged at the upper part of the exposed section of the anchor rod, the lower end of at least one steel wire 4 is connected in the perforation 11, the upper end of the steel wire 4 is wound and connected on a cylindrical member 3, the cylindrical member 3 is connected on the sliding block 8, the anchor rod 5 can be fixedly connected with the concrete member 10 through casting in advance, and the concrete member 10 can be fixedly connected with the base 1 during a test and can be locked or clamped by using a bolt.
The driving mechanism is preferably a hydraulic driving mechanism, a telescopic rod of the hydraulic driving mechanism acts on the sliding block, the hydraulic driving mechanism is provided with a display 9 for displaying the thrust value of the sliding block, the display 9 is arranged on the base, and the hydraulic driving mechanism is the hydraulic jack.
Of course, the driving mechanism may also be a screw-nut mechanism, the screw rod of the screw-nut mechanism is in threaded connection with the slider, the slider is vertically moved upward under the rotation of the screw rod of the screw-nut mechanism (the rotation of the motor drives the screw rod), in order to display the thrust value of the screw-nut mechanism to the slider, a tension gauge may be provided between the slider and the collar, the tension of the tension gauge is displayed by a display, and the display may be mounted on the base.
The cylindrical member 3 can be a cylindrical rigid rod, two ends of the cylindrical rigid rod are sleeved with lantern rings 2, the upper ends of the lantern rings 2 are fixedly connected with sliding blocks 8, and the middle section of the cylindrical rigid rod is wound on the upper ends of the steel wires; or the middle section of the cylindrical rigid rod is sleeved with the sleeve ring 2, the upper end of the sleeve ring is fixedly connected with the sliding block 8, the two ends of the cylindrical rigid rod are wound on the upper end of the steel wire, and the sliding block 8, the sleeve ring 2, the cylindrical member 3 and the steel wire 4 can be connected in both modes; one end of the steel wire is connected with the anchor rod, and the other end of the steel wire is connected with the cylindrical steel member, so that the anchor rod, the high-strength steel wire and the lantern ring do not generate relative displacement.
In order to realize connection of the steel wire and the anchor rod, the perforation 11 at the upper part of the exposed section of the anchor rod is a vertically intersected perforation, the axial lead of the vertically intersected perforation is vertical to the axial lead of the anchor rod, one or more groups of vertically intersected perforations are arranged in the length direction of the anchor rod, and when the steel wire (high-strength steel wire) connected in one group of vertically intersected perforations is easy to break in a drawing test, the steel wire can be arranged in two or three groups of vertically intersected perforations, and one high-strength steel wire is penetrated in each perforation.
For easy viewing, a length indicator 12 is provided on the base along the vertical sliding rail.
The utility model relates to an installation and use method of an anchor rod drawing test device, which comprises the following steps:
(1) Drilling holes at the corresponding positions of the upper part of an anchor rod (an object to be tested) with the lower part embedded in a concrete member, enabling the first end of a high-strength steel wire to pass through the corresponding holes, and winding the second end of the high-strength steel wire on a cylindrical member;
(2) Clamping the cylindrical member by using a clamp or a lantern ring, ensuring that the clamp (lantern ring), the cylindrical member, the high-strength steel wire and the anchor rod do not generate relative displacement, and recording initial scales;
(3) The drive mechanism (hydraulic drive mechanism) was turned on and the test was started, and the hydraulic drive mechanism was pressurized at a rate of 1kN/s until the anchor rod pulled out the concrete member.
(4) And recording drawing force data in the display and scale values marked by the length on the base.
The utility model effectively solves the problem that the anchor rod is easy to pinch off because the anchor rod is clamped by the clamp of the drawing instrument to be drawn when the compressive strength of the anchor rod is insufficient (low compressive strength anchor rod) in the drawing test process; the utility model has simple installation and disassembly and easy operation, the surface of the device is provided with scales, the drawing length of the anchor rod can be obtained without the cooperation of other instruments, and the workload of manual measurement is effectively reduced; in addition, the device preferably adopts a hydraulic driving mechanism, so that the pulling resistance of the anchor rod can be conveniently calculated.
While the foregoing is directed to the preferred embodiment, other and further embodiments of the utility model will be apparent to those skilled in the art from the following description, wherein the utility model is described, by way of illustration and example only, and it is intended that the utility model not be limited to the specific embodiments illustrated and described, but that the utility model is to be limited to the specific embodiments illustrated and described.
Claims (8)
1. An anchor rod drawing test device which is characterized in that: including the base with establish the vertical slide rail on the base, sliding connection has the slider on the vertical slide rail, be equipped with the drive slider on the base gliding actuating mechanism on the vertical slide rail, the fixed concrete member that is equipped with of side of base, the concrete member pre-buried has the stock of vertical setting, and the stock has the exposed section of exposing outside the concrete member, stock exposed section upper portion is equipped with the perforation, connect the lower extreme of at least one steel wire in the perforation, the upper end winding of steel wire is connected on the cylindricality component, the cylindricality component is connected on the slider.
2. The rock bolt pull-out test apparatus of claim 1, wherein: the driving mechanism is a hydraulic driving mechanism, and a telescopic rod of the hydraulic driving mechanism acts on the sliding block.
3. The rock bolt pull-out test apparatus of claim 1, wherein: the driving mechanism is a screw-nut mechanism, a screw rod of the screw-nut mechanism is in threaded connection with the sliding block, and the sliding block vertically moves upwards under the rotation of the screw rod of the screw-nut mechanism.
4. A bolt pull-out test apparatus according to claim 2 or claim 3, wherein: the cylindrical member is a cylindrical rigid rod, two ends of the cylindrical rigid rod are sleeved with lantern rings, the upper ends of the lantern rings are fixedly connected with the sliding blocks, and the middle section of the cylindrical rigid rod is wound on the upper ends of the steel wires; or the middle section of the cylindrical rigid rod is sleeved with a lantern ring, the upper end of the lantern ring is fixedly connected with the sliding block, and the two ends of the cylindrical rigid rod are wound on the upper end of the steel wire.
5. The rock bolt pull-out test apparatus of claim 4, wherein: the perforation at the upper part of the exposed section of the anchor rod is a perpendicularly-intersected perforation, the axial lead of the perpendicularly-intersected perforation is perpendicular to the axial lead of the anchor rod, and one or more groups of perpendicularly-intersected perforations are arranged in the length direction of the anchor rod.
6. The rock bolt pull-out test apparatus of claim 5, wherein: the steel wire is a high-strength steel wire.
7. The rock bolt pull-out test apparatus of claim 6, wherein: the base is provided with a display which is used for displaying the thrust of the driving mechanism acting on the sliding block.
8. The rock bolt pull-out test apparatus of claim 1, wherein: the base is provided with a length mark along the vertical sliding rail direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322296850.8U CN220305029U (en) | 2023-08-25 | 2023-08-25 | Anchor rod drawing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322296850.8U CN220305029U (en) | 2023-08-25 | 2023-08-25 | Anchor rod drawing test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220305029U true CN220305029U (en) | 2024-01-05 |
Family
ID=89344728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322296850.8U Active CN220305029U (en) | 2023-08-25 | 2023-08-25 | Anchor rod drawing test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220305029U (en) |
-
2023
- 2023-08-25 CN CN202322296850.8U patent/CN220305029U/en active Active
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