CN220154051U - Device for preparing double-head anchoring sample - Google Patents
Device for preparing double-head anchoring sample Download PDFInfo
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- CN220154051U CN220154051U CN202321545786.6U CN202321545786U CN220154051U CN 220154051 U CN220154051 U CN 220154051U CN 202321545786 U CN202321545786 U CN 202321545786U CN 220154051 U CN220154051 U CN 220154051U
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- clamp
- glass fiber
- reinforced plastic
- fiber reinforced
- steel pipe
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- 238000004873 anchoring Methods 0.000 title claims abstract description 43
- 239000011152 fibreglass Substances 0.000 claims abstract description 53
- 238000012360 testing method Methods 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000009864 tensile test Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 2
- 239000003365 glass fiber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to the technical field of glass fiber reinforced plastic anchor rod tensile test, and discloses a device for preparing a double-head anchoring sample. The device comprises a test bed, a support, a direct acting mechanism, a steel pipe, a first clamp and a second clamp. One end of the test bed is provided with a support, the support is provided with a direct acting mechanism, an output shaft of the direct acting mechanism is connected with a first clamp, the direct acting mechanism enables the first clamp to reciprocate along the direction of the output shaft of the direct acting mechanism, and the other opposite end of the test bed is provided with a second clamp. The device adopts the double-end anchoring mode of the glass fiber reinforced plastic anchor rod, adopts the steel pipe as an anchoring simulation hole through taking the resin anchoring agent as a bonding material, and anchors the two ends of the glass fiber reinforced plastic rod body. The testing machine clamps the anchoring section of the glass fiber reinforced plastic anchor rod to realize indirect clamping of the rod body, so that the influence of the jaw and other auxiliary testing devices on the tensile strength test can be reduced and eliminated, and the obtained data can represent the actual tensile strength of the rod body.
Description
Technical Field
The utility model belongs to the technical field of glass fiber reinforced plastic anchor rod tensile testing, and particularly relates to a device for preparing a double-head anchoring sample.
Background
The glass fiber reinforced plastic anchor rod is formed by compounding nonmetallic materials, belongs to brittle materials, and determines that the glass fiber reinforced plastic anchor rod cannot directly use a common universal testing machine to measure the tensile strength due to the nonmetallic material characteristics. When the tensile strength of the glass fiber reinforced plastic anchor rod is measured, if the glass fiber reinforced plastic anchor rod is directly clamped in the jaw of the tester for testing, the clamping of the metal jaw generates transverse shearing force on the glass fiber reinforced plastic anchor rod, the shearing force is increased along with the increase of the testing force, the damage degree of the jaw on the glass fiber reinforced plastic anchor rod is increased, finally, glass fiber on the surface of the glass fiber reinforced plastic anchor rod is broken firstly to cause the reduction of the testing force, the clamped part of the glass fiber reinforced plastic anchor rod is obviously broken, and the axial cracking of a larger area is caused, and the glass fiber at other positions is not broken, so that the glass fiber reinforced plastic anchor rod is only locally damaged in the test, and the data obtained in the test cannot represent the real tensile strength of the glass fiber reinforced plastic anchor rod.
Disclosure of Invention
The utility model aims to provide a device for preparing a double-head anchoring sample, so that two ends of a glass fiber reinforced plastic rod body are anchored, a tensile testing stage of the glass fiber reinforced plastic rod body is carried out subsequently, and a testing machine realizes the aim of indirectly clamping the rod body by clamping an anchoring section, so that the influence of a jaw and other auxiliary testing devices on a tensile strength test is effectively reduced and eliminated.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the device for preparing the double-head anchoring sample comprises a test bed, a bracket, a direct-acting mechanism, a steel pipe, a first clamp and a second clamp;
one end of the test bed is provided with a bracket, the bracket is arranged along the vertical direction, the bracket is provided with a direct-acting mechanism, and an output shaft of the direct-acting mechanism is connected with the first clamp;
the first clamp is used for clamping the glass fiber reinforced plastic anchor rod and can reciprocate along the direction of an output shaft of the direct-acting mechanism;
the other opposite end of the test bed is provided with a second clamp which is fixedly connected with the test bed;
the steel pipe is a hollow structure with one end open and one end closed, and the closed end of the steel pipe is arranged on the second clamp.
Compared with the prior art, the utility model has the following beneficial effects:
as described above, the utility model relates to a device for preparing a double-end anchoring sample, which adopts a double-end anchoring mode, namely adopts a resin anchoring agent as a bonding material, adopts a seamless steel tube as an anchoring simulation hole, anchors two ends of a glass fiber reinforced plastic rod body, and realizes the purpose of indirectly clamping the glass fiber reinforced plastic rod body by clamping an anchoring section of the glass fiber reinforced plastic rod body through a testing machine. The anchoring section of the glass fiber reinforced plastic anchor rod is clamped by the testing machine to indirectly clamp the rod body, so that the influence of the jaw and other auxiliary testing devices on the tensile strength test can be reduced and eliminated, and the obtained data can represent the actual tensile strength of the rod body.
Drawings
Fig. 1 is a schematic structural view of an apparatus for preparing a double-ended anchoring sample according to an embodiment of the present utility model, which shows a glass fiber reinforced plastic anchor rod in an operating state in which the anchor is not performed.
Fig. 2 is a schematic structural view of an apparatus for preparing a double-ended anchoring sample according to an embodiment of the present utility model, which shows a glass fiber reinforced plastic anchor rod in an operating state for completing the anchoring.
Fig. 3 is a schematic diagram of a testing machine clamping a glass fiber reinforced plastic anchor rod according to an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
An apparatus for preparing a double-ended anchoring sample as shown in fig. 1 to 2 comprises a test stand 1, a support 2, a linear motion mechanism 3, a steel pipe 4, a first clamp 5 and a second clamp 6.
One end (e.g., the left end in fig. 1) of the test stand 1 is provided with a bracket 2, the bracket 2 is arranged along the vertical direction, and the bracket 2 and the test stand 1 are of an integrated structure. The direct acting mechanism 3 is placed on the support 2, a mounting hole is formed in the support 2, and the direct acting mechanism 3 can be fixedly connected with the support 2 through bolts and the mounting hole.
An output shaft of the direct-acting mechanism 3 is connected with a first clamp 5, and the first clamp 5 clamps the glass fiber reinforced plastic anchor rod 9.
Under the drive of the direct acting mechanism 3, the first clamp 5 drives the glass fiber reinforced plastic anchor rod 9 to reciprocate along the direction of the output shaft of the direct acting mechanism 3.
The other opposite end (for example, right end in fig. 1) of the test stand 1 is provided with a second clamp 6, the second clamp 6 is fixedly connected with the test stand 1, the second clamp 6 adopts a chuck, a steel pipe mounting hole is formed in the middle of the chuck, and the closed end of the steel pipe is mounted at the steel pipe mounting hole.
The output shaft of the direct-acting mechanism 3 and the central main shaft of the first clamp 5 are coaxially arranged with the central axis of the steel pipe 4.
In this embodiment, the linear motion mechanism is, for example, an electric push rod.
In this embodiment, the first chuck 5 is, for example, a three-jaw chuck, and the second chuck 6 is a general chuck.
The central axis of the three-jaw chuck and the central axis of the steel pipe 4 are set to be at the same horizontal height, and when the three-jaw chuck clamps the glass fiber reinforced plastic anchor rod 9, the glass fiber reinforced plastic anchor rod 9 can horizontally move into the steel pipe 4.
The steel pipe 4 is of a hollow structure with one open end and one closed end, the diameter of the steel pipe 4 is larger than that of the glass fiber reinforced plastic anchor rod 9, and the diameter of the resin anchoring agent 10 is smaller than that of the glass fiber reinforced plastic anchor rod 9.
The device for preparing the double-head anchoring sample is provided with a sliding mechanism 6, and the upper end of the sliding mechanism 6 is connected with a three-jaw chuck.
The slide mechanism 6 is a slide roller 601. The upper end of the sliding mechanism 6 is provided with a bracket 7, the bracket 7 is made of elastic materials, the bracket 7 can clamp the three-jaw chuck, and the sliding mechanism 6 and the three-jaw chuck can synchronously slide.
The test bed 1 is provided with a sliding rail 8, the sliding rail 8 is arranged along the three-jaw chuck and the steel pipe 4 in a line projection manner, the sliding rail 8 is arranged between the first clamp 5 and the protection device 13, the size of the sliding rail 8 is matched with the size of the sliding roller 601, and the sliding roller 601 is prevented from derailing.
In this embodiment, the protection device 13 is fixedly connected with the test stand, and a through hole for the glass fiber reinforced plastic anchor rod 9 to pass through is arranged on the protection device 13. The protection device 13 is provided as a common chuck for supporting the glass fibre reinforced plastic anchor rod 9.
When the glass fiber reinforced plastic anchor rod 9 sample is prepared, the glass fiber reinforced plastic anchor rod 9 is fixedly connected to a three-jaw chuck on the left side, the glass fiber reinforced plastic anchor rod 9 is clamped by three jaws of the three-jaw chuck, the three-jaw chuck is connected with the direct-acting mechanism 3, the glass fiber reinforced plastic anchor rod 9 passes through a middle common chuck, the common chuck supports the glass fiber reinforced plastic anchor rod 9, a steel pipe 4 with a proper inner diameter is selected to be fixed to a common chuck on the right side, and a resin anchoring agent 10 is placed in the middle of the steel pipe 4. The linear motion mechanism 3 is started, and the output shaft of the linear motion mechanism 3 pushes the glass fiber reinforced plastic anchor rod 9 to push the resin anchoring agent 10 into the bottom of the steel pipe 4, so that the glass fiber reinforced plastic anchor rod 9 and the steel pipe 4 complete the anchoring function. The other end of the glass fiber reinforced plastic anchor rod 9 adopts the same method to finish the preparation of the sample.
As shown in fig. 3, the prepared glass fiber reinforced plastic anchor rod 9 sample is tested by the testing machine 11, when the test is performed, the upper jaw 12 and the lower jaw 12 of the testing machine 11 only clamp and fix the anchoring section part of the glass fiber reinforced plastic anchor rod 9, the test curve is stable in the test process, the force value keeps continuously rising, the anchoring section part of the rod body of the glass fiber reinforced plastic anchor rod 9 is not found to be pulled out of the jaws 12, the fluctuation phenomenon is avoided, and after the maximum force is reached, the glass fiber in the rod body of the glass fiber reinforced plastic anchor rod 9 is broken, the force value is reduced, and the test is ended.
In the embodiment, the diameter of a sample of the glass fiber reinforced plastic anchor rod 9 is 25mm, the length of the sample is 4500mm, the diameter of the steel tube 4 is 28mm, the length of the sample is 350mm, the diameter of the resin anchoring agent 10 is 21.6mm, the length of the sample is 300mm, the resin anchoring agent 10 is pushed into the bottom of the steel tube 4 by rod body pushing of the glass fiber reinforced plastic anchor rod 9, anchoring and installation of the glass fiber reinforced plastic anchor rod 9 are completed, and the anchoring force generated by an anchoring part is larger than the tensile strength of the glass fiber reinforced plastic anchor rod 9.
Of course, the above is only an example, and the device for preparing a double-ended anchoring sample in this embodiment may also be matched with the glass fiber reinforced plastic anchor rod 9 with other dimensions, which will not be described herein.
The present embodiment has been described in detail with reference to the accompanying drawings. From the foregoing description, one skilled in the art will be aware of an apparatus for preparing dual head anchored samples of the present utility model.
Of course, the above-mentioned embodiments are only preferred embodiments of the present utility model, and not limiting the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model and should be protected by the present utility model.
Claims (9)
1. The device for preparing the double-head anchoring sample is characterized by comprising a test bed, a bracket, a direct-acting mechanism, a steel pipe, a first clamp and a second clamp;
one end of the test bed is provided with a support, the support is arranged along the vertical direction, the support is provided with the direct-acting mechanism, and an output shaft of the direct-acting mechanism is connected with the first clamp;
the first clamp is used for clamping the glass fiber reinforced plastic anchor rod and can reciprocate along the direction of an output shaft of the direct-acting mechanism;
the other opposite end of the test bed is provided with a second clamp which is fixedly connected with the test bed;
the steel pipe is of a hollow structure with one end open and one end closed, and the closed end of the steel pipe is arranged on the second clamp.
2. The apparatus for preparing a double-ended anchoring coupon according to claim 1, wherein the first clamp central axis is disposed at the same level as the steel pipe central axis, and a distance between the first clamp and the steel pipe is capable of accommodating a glass fiber reinforced plastic anchor rod.
3. The apparatus for preparing a double-ended anchoring sample according to claim 1, wherein a sliding mechanism that can slide along the test bed is connected to a lower portion of the first clamp.
4. A device for preparing a double-ended anchoring sample according to claim 3, wherein the sliding mechanism employs sliding rollers.
5. The apparatus for preparing a double-ended anchoring sample according to claim 4, wherein the sliding mechanism is further configured with a sliding track;
the sliding track is arranged on the test bed and is consistent with the direction of the output shaft of the direct-acting mechanism.
6. The apparatus for preparing a dual-ended anchoring coupon of claim 1, wherein said first clamp employs a three-jaw chuck.
7. The apparatus for preparing a double-ended anchoring sample according to claim 1, wherein a protection device is provided between the first clamp and the second clamp, and the protection device is fixedly connected with the test stand;
the protection device is provided with a through hole for the glass fiber reinforced plastic anchor rod to pass through;
wherein the diameter of the through hole is larger than that of the glass fiber reinforced plastic anchor rod.
8. The apparatus for preparing a double-ended anchoring sample according to claim 1, wherein the direct acting mechanism employs an electric push rod.
9. The apparatus for preparing a double-ended anchoring coupon according to claim 1, wherein said second fixture employs a chuck;
the middle part of the chuck is provided with a steel pipe mounting hole, and the closed end of the steel pipe is arranged at the steel pipe mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321545786.6U CN220154051U (en) | 2023-06-16 | 2023-06-16 | Device for preparing double-head anchoring sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321545786.6U CN220154051U (en) | 2023-06-16 | 2023-06-16 | Device for preparing double-head anchoring sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220154051U true CN220154051U (en) | 2023-12-08 |
Family
ID=89015552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321545786.6U Active CN220154051U (en) | 2023-06-16 | 2023-06-16 | Device for preparing double-head anchoring sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220154051U (en) |
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2023
- 2023-06-16 CN CN202321545786.6U patent/CN220154051U/en active Active
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