CN211401921U - Anchor rod drawing device - Google Patents
Anchor rod drawing device Download PDFInfo
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- CN211401921U CN211401921U CN201921952315.0U CN201921952315U CN211401921U CN 211401921 U CN211401921 U CN 211401921U CN 201921952315 U CN201921952315 U CN 201921952315U CN 211401921 U CN211401921 U CN 211401921U
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- jack
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- clamping
- anchor rod
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- 230000006978 adaptation Effects 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000000926 separation method Methods 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an anchor rod drawing device, belong to the stock and draw the check out test set field, anchor rod drawing device is including being used for providing a plurality of jacks of drawing force to the stock that awaits measuring, an anchor subassembly for the stock that awaits measuring of centre gripping, the anchor subassembly passes through the dead lever and sets up in the inboard of a plurality of jacks and near the top that pushes away one end of a plurality of jacks, the anchor subassembly includes the inside ground tackle that is provided with the back taper through-hole, set up in the inside clamping piece of back taper through-hole, the outer wall of clamping piece and the inner wall looks adaptation of back taper through-hole, when the stock that awaits measuring is pressed from both sides to the clamping piece, the clamping piece is kept away. The utility model discloses an anchor rod drawing device can realize dismantling separation with ground tackle and clamping piece from the anchor rod conveniently after drawing experimental completion.
Description
Technical Field
The utility model relates to a check out test set field is drawn to the stock, especially relates to an stock drawing device.
Background
When the engineering anchor rod (cable), the embedded bar, the spike and the like are subjected to drawing force testing, quantitative prestress application or drawing operation, if the exposed ends of the engineering anchor rod (cable), the embedded bar, the spike and the like are too short, common drawing instruments and equipment cannot be used.
The exposed ends of anchor rods (cables), embedded bars and the like in normal engineering are all about 10cm, the existing hollow jack is adopted for drawing (the drawing can be implemented only by reserving the exposed end about 30cm in general), and the drawing can be implemented only after the exposed ends are lengthened by various methods. If the exposed end is too short, clamping and drawing cannot be performed. Therefore, random spot check cannot be realized during the construction quality detection of the anchor rod (cable) and the embedded steel bar. The defect that the length of the specified exposed end must be reserved in most construction units is utilized, the material stealing and material reducing rate is rampant, and the significance of the traditional spot inspection is lost. The construction quality of the anchor rod (cable) and the embedded steel bar is one of important conditions for guaranteeing the engineering quality, random spot inspection is realized, and the method is a necessary means for deterring thieves and reducing materials.
Chinese patent publication No. CN204575450U discloses an anchor rod and anchor cable drawing instrument, which comprises a conical anchor, a clamping piece, a jack, an oil hydraulic pump, a horizontal bracket, a positioning frame, and a displacement meter, wherein the jacks with screw type adjusting top plates are uniformly arranged and connected into a whole by a connecting plate to form a synchronous jack, the conical anchor is fixed at the front end of the synchronous jack by an anchor connecting plate, the jacks are all connected with the oil hydraulic pump by oil pipes and hydraulic distribution valves, the horizontal bracket is connected with the positioning frame, the displacement meter is installed in the middle of the positioning frame, the horizontal bracket is connected with an expansion screw installed beside the anchor rod and anchor cable to be tested by a fixing screw, the expansion screw and the anchor rod and anchor cable to be tested are arranged on the same straight line, and the positioning meter and the anchor rod and anchor cable to be tested are coaxial, the anchor rod and anchor cable drawing instrument can perform effective drawing test on the anchor rod, the phenomenon of material reduction due to work stealing of the anchor rods and the anchor cables in the tunnel surrounding rock or slope engineering reinforcement is prevented.
But draw the appearance to this type of stock, draw because of it need expose extremely short stock, when the centre gripping stock, its ground tackle terminal surface is direct and the wall contact of stock place usually, when drawing experimental back dismantlement ground tackle and clamping piece of accomplishing, because of need not to dismantle between ground tackle terminal surface and the wall and move the back-and-forth movement room, need control usually and strike and make its relaxation, the fragile appearance of drawing, ground tackle and drawing appearance dismantlement are very difficult.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that an anchor rod drawing device is provided to realize dismantling and separating an anchorage device and a clamping piece from an anchor rod conveniently after drawing test completion.
The utility model adopts the technical proposal that:
the utility model provides a pair of stock drawing device, including a plurality of jacks that are used for providing the drawing force to the stock that awaits measuring, be used for the centre gripping the anchor subassembly of stock that awaits measuring, the anchor subassembly passes through the dead lever and sets up in a plurality of the inboard of jack is close to a plurality of the top pushes away one end of jack, the anchor subassembly include inside be provided with the back taper through-hole the ground tackle, set up in the inside clamping piece of back taper through-hole, the outer wall of clamping piece with the inner wall looks adaptation of back taper through-hole, the clamping piece presss from both sides tightly during the stock that awaits measuring, the clamping piece is kept away from the one end of jack all extends to the outside of toper through-hole.
As a further improvement of this scheme, the clamping piece includes clamping part, is located the top of the less one end of clamping part moves back the portion the clamping piece presss from both sides tightly during the stock that awaits measuring, the inner wall of clamping part with the outer wall of the stock that awaits measuring offsets tightly, the top move back the inner wall of portion with form the clearance between the outer wall of the stock that awaits measuring, the top move back the portion extend to the outside of toper through-hole.
As a further improvement of the solution, the inner wall of the clamping portion is provided with fastening lines.
As a further improvement of the scheme, the clamping pieces are provided with a plurality of clamping positions formed between the inner walls of the clamping pieces.
As a further improvement of the scheme, one end of the fixed rod is fixedly connected with the outer wall of the anchorage device, and the other end of the fixed rod is fixedly connected with the outer wall of the jack.
As a further improvement of the scheme, the number of the fixed rods and the number of the jacks are arranged in a one-to-one correspondence mode.
As a further improvement of the scheme, an oil pipe is connected between every two adjacent jacks, and two ends of an internal cavity of each oil pipe are respectively communicated with internal oil cavities of the jacks connected with the oil pipe.
As a further improvement of the scheme, the oil pipe is made of a metal material.
As a further improvement of the scheme, a reinforcing rib plate is fixedly arranged between the oil pipe and the jack.
As a further improvement of the scheme, the jacks are three, and the three jacks form a triangular shape.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of anchor rod drawing device, cooperation through ground tackle and clamping piece, the stock that will await measuring carries out the centre gripping, a plurality of jack tops of rethread push away the stock place wall that awaits measuring and provide the drawing force, because of the one end that the clamping piece kept away from the jack when pressing from both sides tight stock that awaits measuring through setting up the clamping piece extends to the outside of toper through-hole, a terminal surface that makes the ground tackle keep away from the jack does not directly contact with the wall promptly and forms the top of certain distance and moves back the space, after drawing experimental completion, through promoting the jack to the stock place wall direction that is close to awaiting measuring, the one end that makes the ground tackle keep away from the jack moves back the space to the top, become flexible promptly and form the clearance between the outer wall of clamping piece and the inner wall of ground tackle, can easily take out the clamping.
Drawings
Fig. 1 is a schematic cross-sectional view of an anchor rod drawing device according to an embodiment of the present invention;
fig. 2 is a schematic top view of an anchor rod drawing device according to an embodiment of the present invention;
fig. 3 is a schematic view of a use state of the anchor rod drawing device provided in the embodiment of the present invention.
In the figure:
1. an anchor rod to be tested; 2. a jack; 3. an anchor assembly; 4. fixing the rod; 310. an inverted conical through hole; 31. an anchorage device; 32. a clip; 321. a clamping portion; 322. a top withdrawing part; 3210. fastening lines; 5. an oil pipe; 6. a reinforcing rib plate; 7. leveling screw rods; 8. a top retreat space; 9. a hydraulic pump.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings and technical solutions needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, the anchor rod drawing device provided by the present embodiment includes a plurality of jacks 2 for providing drawing force to the anchor rod 1 to be tested, and an anchoring assembly 3 for clamping the anchor rod 1 to be tested. The jack 2 is the hydraulic jack, and the quantity of jack 2 can be three and more than three, and preferred jack 2 is provided with three in this embodiment, and three jack 2 with the specification form equilateral triangle shape, and stability is high to the use quantity of jack has been reduced. And the pushing end of each jack 2 is provided with a leveling screw 7 in a threaded fit manner and is used for adjusting the height of each jack 2 contacting the wall surface of the anchor rod 1 to be tested so as to realize leveling of the jack. The anchoring assembly 3 is arranged on the inner sides of the jacks 2 through fixing rods 4 and close to the pushing ends of the jacks 2, and the anchoring assembly 3 comprises an anchorage 31 with an inverted-cone-shaped through hole 310 arranged inside and a clamping piece 32 arranged inside the inverted-cone-shaped through hole 310. Ground tackle 31 is cylindricly, back taper through-hole 310 runs through ground tackle 31 and back taper through-hole 310 and the coaxial setting of ground tackle 31, the internal diameter of back taper through-hole 310 is diminished gradually towards the one end of keeping away from the jack by ground tackle 31 near the one end of jack, the outer wall of clamping piece 32 and the inner wall looks adaptation of back taper through-hole 310, ground tackle 31 keeps away from the terminal surface protrusion in jack 2 of jack 2, when clamping piece 32 presss from both sides tight stock 1 that awaits measuring, the one end that jack 2 was kept away from to clamping piece 32 extends to the outside of toper through-hole, ground tackle 31 keeps away from and forms the top between the anchor rod 1 place wall of jack 2 and awaits measuring and moves back the. When the anchor rod 1 to be tested needs to be subjected to a drawing test, the center of the inverted cone-shaped through hole 310 of the anchor device 31 is aligned with the axis of the anchor rod 1 to be tested, the clamping piece 32 is arranged from the larger end of the inverted cone-shaped through hole 310 and is installed to clamp the anchor rod to be tested, then the leveling screw 7 is adjusted to firmly support each jack 2 on the wall surface of the anchor rod 1 to be tested, hydraulic power is provided through a hydraulic pump communicated with the jacks to lift the jacks 2, drawing force is provided for the anchor rod 1 to be tested, and the drawing test is performed. After the drawing test is completed, oil is returned through a hydraulic pump, after the leveling screw 7 is adjusted to enable the leveling screw to be far away from the wall surface, the jack 2 is pushed towards the direction close to the wall surface where the anchor rod 1 to be tested is located, the jacking space 8 is formed because one end, far away from the jack 2, of the clamping piece 32 extends to the outside of the conical through hole, the end, far away from the jack 2, of the anchor device 31 moves towards the jacking space 8, a gap is formed between the outer wall of the clamping piece 32 and the inner wall of the anchor device 31 in a loosening mode, the clamping piece 32 can be easily taken out, the anchor device 31 and the clamping piece 32 can be detached and separated from the anchor rod to be tested quickly, and the technical problem that the drawing instrument is easy to damage due to the fact that the anchor.
The hydraulic pump 9 for providing hydraulic power to the jack 2 and the component devices for testing the drawing force and displacement are mature prior art, and commercially available existing products can be directly adopted, which are not described herein again.
In order to facilitate the taking out of the clamping piece 32, further, the clamping piece 32 includes a clamping portion 321, a pushing-back portion 322 located at the smaller end of the clamping portion 321, the clamping portion 321 and the pushing-back portion 322 are integrally formed, when the clamping piece 32 clamps the anchor rod 1 to be tested, the inner wall of the clamping portion 321 abuts against the outer wall of the anchor rod 1 to be tested, a gap is formed between the inner wall of the pushing-back portion 322 and the outer wall of the anchor rod 1 to be tested, the clamping portion 321 is located inside the tapered through hole 310, the outer wall of the clamping portion 321 is matched and abutted against the inner wall of the tapered through hole 310, and the pushing-back portion 322 extends to the outside of the tapered. Through the structure setting, after drawing the experiment and accomplishing, to being close to the anchor rod 1 that awaits measuring and promoting jack 2 in the wall direction, when becoming flexible promptly and forming the clearance between the outer wall of clamping piece 32 and the inner wall of ground tackle 31, because of having the clearance between the outer wall of top portion 322 of moving back and the anchor rod 1 that awaits measuring, consequently clamping part 321 keeps away from the one end of top portion 322 of moving back and can rotate certain angle in the relative top portion 322 of moving back, the taking out of easier clamping piece 32.
Further, the clamping pieces 32 are provided with a plurality of clamping positions, the clamping positions used for clamping the anchor rod 1 to be tested are formed between the inner walls of the clamping pieces 32, the plurality of clamping pieces 32 are convenient to disassemble and take out after the drawing test is finished, the clamping pieces are suitable for clamping the anchor rod 1 to be tested with different specifications in a certain size range, and particularly the clamping pieces 32 are provided with three identical clamping pieces. The clamping piece 32 can be replaced to clamp according to the outer diameter of the anchor rod 1 to be clamped.
For reinforcing the anchor assembly to the anchor rod 1's that awaits measuring centre gripping steadiness, further, the inner wall of clamping part 321 is provided with fastening line 3210, can strengthen the clamping piece and the anchor rod 1's that awaits measuring frictional force between to improve the anchor rod 1 centre gripping steadiness to awaiting measuring.
In order to simplify the structure and improve the structural stability, furthermore, one end of the fixing rod 4 is fixedly connected with the outer wall of the anchorage device 31, the other end of the fixing rod 4 is fixedly connected with the outer wall of the jack 2, the connection between the anchorage device 31 and the jack 2 is ensured to be stable, the anchorage device 31 is directly fixed with the jack through the fixing rod 4, a conical anchorage device bracket for arranging the anchorage device is not required to be additionally arranged, the structure is simplified, and the stability of the anchoring assembly can be improved.
Furthermore, the number of the fixing rods 4 and the number of the jacks 2 are arranged in a one-to-one correspondence manner, the number of the fixing rods 4 is three, and the outer walls of the anchors 31 are fixedly connected with the jacks 2 through the fixing rods 4 respectively. The fixing rods 4 can be arranged perpendicular to the jacks 2, or inclined to the jacks 2 to make the three fixing rods 4 in an inverted cone shape, so as to improve the stability of connection between the jacks 2.
In order to facilitate the communication of the internal oil cavities of the jacks 2 and simplify the fixing structure between the jacks, an oil pipe 5 is further connected between two adjacent jacks 2, two ends of an internal cavity of the oil pipe 5 are respectively communicated with the internal oil cavities of the jacks 2 connected with the oil pipe 5, and the oil pipe 5 is made of metal materials and can be an iron pipe, an alloy pipe and the like. Through the structure setting, oil pipe 5 both can do and lead oil pipe and with the inside oil pocket intercommunication of each jack 2, and act as the connection dead lever, connect each jack 2 fixed as an organic whole, need not to set up the atress pole in addition again and connect each jack mutually, and need not to set up more soft oil pipe, has effectively simplified the structure, has improved stock drawing device's whole portability and steadiness.
In order to enhance the structural strength between the jacks 2, furthermore, reinforcing rib plates 6 are fixedly arranged at included angles formed between the oil pipe 5 and the jacks 2, so that the connection strength between the end part of the oil pipe 5 and the jacks 2 can be enhanced, and the integral structural strength formed between the jacks is enhanced.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (10)
1. The utility model provides an anchor rod pulling device, includes a plurality of jacks (2) that are used for providing the pullout force to the anchor rod (1) that awaits measuring, is used for the centre gripping anchor subassembly (3) of anchor rod (1) awaits measuring, anchor subassembly (3) set up in a plurality of through dead lever (4) the inboard of jack (2) is close to a plurality of the top of jack (2) pushes away one end, anchor subassembly (3) including inside ground tackle (31) that are provided with back taper through-hole (310), set up in inside clamping piece (32) of back taper through-hole (310), the outer wall of clamping piece (32) with the inner wall looks adaptation of back taper through-hole (310), its characterized in that:
when clamping piece (32) press from both sides tightly stock (1) that awaits measuring, the one end that jack (2) were kept away from in clamping piece (32) extends to the outside of toper through-hole, anchorage device (31) keep away from a terminal surface of jack (2) with form between the wall of stock (1) that awaits measuring and move back space (8).
2. A rock bolt pulling apparatus according to claim 1, wherein:
the clamping piece (32) comprises a clamping part (321) and a top withdrawing part (322) positioned at the smaller end of the clamping part (321);
clamping piece (32) press from both sides tightly during stock (1) awaits measuring, the inner wall of clamping part (321) with the outer wall of stock (1) awaits measuring offsets tightly, the top retreat the inner wall of portion (322) with form the clearance between the outer wall of stock (1) awaits measuring, the top retreat portion (322) extend to the outside of back taper through-hole (310).
3. A rock bolt pulling apparatus according to claim 2, wherein:
the inner wall of the clamping part (321) is provided with fastening grains (3210).
4. A rock bolt pulling apparatus according to claim 1, wherein:
the clamping pieces (32) are arranged in a plurality of numbers, and clamping positions for clamping the anchor rod (1) to be tested are formed between the inner walls of the clamping pieces (32).
5. A rock bolt pulling apparatus according to claim 1, wherein:
one end of the fixed rod (4) is fixedly connected with the outer wall of the anchorage device (31), and the other end of the fixed rod (4) is fixedly connected with the outer wall of the jack (2).
6. A rock bolt pulling apparatus according to claim 5, wherein:
the number of the fixing rods (4) is in one-to-one correspondence with the number of the jacks (2).
7. A rock bolt pulling apparatus according to claim 1, wherein:
an oil pipe (5) is connected between every two adjacent jacks (2);
and two ends of the inner cavity of the oil pipe (5) are respectively communicated with the inner oil cavity of the jack (2) connected with the oil pipe.
8. A rock bolt pulling apparatus according to claim 7, wherein:
the oil pipe (5) is made of metal materials.
9. A rock bolt pulling apparatus according to claim 8, wherein:
and a reinforcing rib plate (6) is fixedly arranged between the oil pipe (5) and the jack (2).
10. A rock bolt pulling apparatus according to any one of claims 1 to 9, wherein:
the number of the jacks (2) is three, and the three jacks (2) form a triangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921952315.0U CN211401921U (en) | 2019-11-13 | 2019-11-13 | Anchor rod drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921952315.0U CN211401921U (en) | 2019-11-13 | 2019-11-13 | Anchor rod drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211401921U true CN211401921U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921952315.0U Active CN211401921U (en) | 2019-11-13 | 2019-11-13 | Anchor rod drawing device |
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| CN (1) | CN211401921U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360526A (en) * | 2020-11-10 | 2021-02-12 | 河南大学 | Anchor rod pulling device |
| CN114250772A (en) * | 2021-11-22 | 2022-03-29 | 浙江理工大学科技与艺术学院 | Soil nail and soil nail pulling machine |
| CN114250779A (en) * | 2021-11-22 | 2022-03-29 | 浙江理工大学科技与艺术学院 | Foundation pit construction method |
| CN115235869A (en) * | 2022-07-22 | 2022-10-25 | 中国石油大学(华东) | Installation and high and low temperature test method of reinforcing steel bar mechanical property test device |
-
2019
- 2019-11-13 CN CN201921952315.0U patent/CN211401921U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360526A (en) * | 2020-11-10 | 2021-02-12 | 河南大学 | Anchor rod pulling device |
| CN112360526B (en) * | 2020-11-10 | 2021-08-10 | 河南大学 | Anchor rod pulling device |
| CN114250772A (en) * | 2021-11-22 | 2022-03-29 | 浙江理工大学科技与艺术学院 | Soil nail and soil nail pulling machine |
| CN114250779A (en) * | 2021-11-22 | 2022-03-29 | 浙江理工大学科技与艺术学院 | Foundation pit construction method |
| CN115235869A (en) * | 2022-07-22 | 2022-10-25 | 中国石油大学(华东) | Installation and high and low temperature test method of reinforcing steel bar mechanical property test device |
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