CN208267880U - Tensioning equipment suitable for underground construction defective anchor bar - Google Patents
Tensioning equipment suitable for underground construction defective anchor bar Download PDFInfo
- Publication number
- CN208267880U CN208267880U CN201820877788.8U CN201820877788U CN208267880U CN 208267880 U CN208267880 U CN 208267880U CN 201820877788 U CN201820877788 U CN 201820877788U CN 208267880 U CN208267880 U CN 208267880U
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- China
- Prior art keywords
- oil cylinder
- connecting rod
- screw
- anchor bar
- anchor
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Abstract
The utility model discloses a kind of tensioning equipments suitable for underground construction defective anchor bar, including hollow oil cylinder, oil cylinder fixed arm, angle adjustment device, rotary table support, drawing connecting rod and hydraulic power supply；The drawing angle of drawing connecting rod can be changed by angle adjustment device, to make drawing connecting rod and constructional deficiency anchor pole be in coaxial position, then it connect drawing connecting rod with defective anchor bar by connector sleeve, and angle adjustment device fixed bit is postponed, radial tension detection is carried out to constructional deficiency anchor pole by the stretching of hollow oil cylinder, it can be fastened using pallet and bolt the case where defective anchor bar is in high pretightening force after completing detection.The utility model can coaxially carry out pulling test to constructional deficiency anchor pole, so as to effectively detect the anchor force of constructional deficiency anchor pole and apply high pretightening force to it.
Description
Technical field
The utility model relates to a kind of tensioning equipment of anchor pole, specifically a kind of suitable for underground construction defective anchor bar
Drawing device.
Background technique
With being continuously increased for the high speed development of China's economic society and the demand to the energy, soil, traffic etc., China
The scale and quantity of underground geotechnical engineering are increasingly increasing.Bolt support technology is construction is simple, fast since its own performance is stablized
Speed, outstanding advantages of safe and reliable, operating expenses is low, small to country rock disturbance, and be widely used in geotechnical engineering, mine engineering,
In the constructions of every field surrounding rock consolidation such as railway tunnel, vcehicular tunnel, underground structure cavern, hydraulic engineering supporting.Anchor pole
Support form mainly has anchor and spray net, shotcrete, anchor pole rope etc., and reinforcement principle is exactly by the vertical drilling in country rock, by anchor pole
Embedment Kong Zhonghou cement injection mortar or bottom hole be pre-filled with Anchor Agent, by the bond stress of anchor pole and anchoring body, anchoring body with
Frictional force and anchor rod strength collective effect between country rock undertake the various loads being applied in integer support structure.
In order to guarantee stabilization and good anchoring effect of the suspension roof support to underground engineering wall rock, most common method be
Anchor pole carries out the test of anchor rod drawing power after completing installation and applies high pretightening force.But in anchoring engineering, due to by underground work
The influence of journey wall rock condition, the factors such as lack of standardization and level professional technology and experience of constructing, so that anchor pole does not hang down with scar
Directly, supporting requirement, i.e. anchor bolt construction existing defects are not met.In the case, due to anchor pole has been anchored also can not be convenient
It removes, therefore still needs to carry out pull-out test to the anchor pole of this type and apply pretightning force, can reach required
Supporting intensity, but if tensioning is carried out to such defective anchor bar, then is existed following using existing anchor rod drawing device
The problem of aspect: 1. tensioning equipment can not be directly connected to end of anchor rod, need to process different special connectors so that device and
Operation all becomes more sophisticated；2. carry out drawing detection or apply pretightning force, in the case where can not being in coaxial with anchor rod body
Drawing is carried out, is easily bent so as to cause anchor pole tail portion and is even broken, anchor pole is finally damaged, causes its failure；3. due to that can not make
The case where draw-off gear is in coaxial drawing with anchor pole, therefore can not accurately apply high pretightening force and detection anchor force.Engineering
Practice have shown that the extensive use with anchor rod anchored technology in underground engineering, makes because of live Detection of Bolt Bonding Integrity, effect difference
At surrounding rock failure unstability, roof accident and economic loss it is also more and more, therefore, research and develop a kind of pair of underground engineering and contain construction
The device that defective anchor bar carries out tensioning becomes problem in the urgent need to address at present.
Summary of the invention
In view of the above-mentioned problems of the prior art, the utility model provide it is a kind of suitable for underground construction defective anchor bar
Tensioning equipment can coaxially carry out pulling test to constructional deficiency anchor pole, so as to effectively detect the anchor force of constructional deficiency anchor pole
And high pretightening force is applied to it.
To achieve the goals above, the technical solution adopted in the utility model is: one kind being suitable for underground construction defect anchor
The tensioning equipment of bar, including hollow oil cylinder, oil cylinder fixed arm, angle adjustment device, rotary table support, drawing connecting rod and hydraulic dynamic
Power source,
Operation groove is opened up on the rotary table support；
The angle adjustment device includes that female screw and rotating seat, rotating seat are fixed on rotary table holder top, the rotation
A great circle arc fluting is opened up in swivel base, female screw is placed in great circle arc fluting, and great circle arc fluting lower part opens up cylinder
Through slot is connected to operation groove, is fixed with oil cylinder support base on mother's screw, female screw was opened up on oil cylinder support base
The central through hole of the centre of sphere；
The fixing end of the hollow oil cylinder is fixedly connected with oil cylinder support base；
The drawing connecting rod sequentially passes through center oil cylinder, central through hole and operation groove, and one end of drawing connecting rod is logical
It crosses the first nut and billet to be fixedly connected with the extension end of hollow oil cylinder, the other end of drawing connecting rod is equipped with connector sleeve；
The oil cylinder fixed arm is two, and two oil cylinder fixed arms are symmetricly set on the two sides of hollow oil cylinder, and oil cylinder is fixed
Arm includes that hanging stick, convolution inner screw, cyclic stick and support rod, one end of support rod are fixed on the upper surface of rotating seat, support rod
The other end it is hinged by one end of pin and cyclic stick, the other end of cyclic stick opens up threaded connection slot, and circle round inner screw
One end is connect by screw thread with slot is threadedly coupled, and the other end for the inner screw that circles round and one end of hanging stick are hinged, the other end of hanging stick
It is fixed on the outer surface of hollow oil cylinder；
The hydraulic power supply is in the side of rotary table support, and hydraulic power supply is connected to by pipeline with hollow oil cylinder.
Further, the angle adjustment device further includes multiple sub- screws, is opened up in rotating seat around female screw more
A roundlet arc fluting, multiple sub- screws are respectively placed in multiple roundlet arc flutings, and each sub- screw with female screw
Contact.
Further, the fixing end of the hollow oil cylinder is bolted with oil cylinder support base.
Further, the rotating seat is with rotary table support by being welded and fixed.
Further, the centre of sphere of female screw and the centre of sphere of multiple sub- screws are in same level.
Compared with prior art, the utility model uses hollow oil cylinder, oil cylinder fixed arm, angle adjustment device, rotary table branch
Seat, drawing connecting rod and hydraulic power supply combine mode, and the drawing angle of drawing connecting rod can be changed by angle adjustment device
Degree, to make drawing connecting rod and constructional deficiency anchor pole be in coaxial position, then make drawing connecting rod by connector sleeve and lack
Anchor pole connection is fallen into, and angle adjustment device fixed bit is postponed, diameter is carried out to constructional deficiency anchor pole by the stretching of hollow oil cylinder
To tension test, it can be carried out tightly using pallet and bolt the case where defective anchor bar is in high pretightening force after completing detection
Gu；Therefore the utility model has the advantages that
(1) the device strong applicability.The deviation angle that can freely adjust hollow oil cylinder by angle adjustment device, can not only
The enough tensioning for adapting to conventional underground engineering anchor pole, and it can be well adapted for the stretching measurement containing constructional deficiency anchor pole,
Cooperation hydraulic system provides the radial load for being parallel to its axis for defective anchor bar；
(2) due to the radial load for being parallel to its anchor pole axis of application, therefore stretching process not will lead to anchor pole tail portion
Bending Damage or fracture, to preferably protect anchor pole, it is therefore prevented that the failure of anchor pole caused by stretching process itself；
(3) setting of oil cylinder supporting element and oil cylinder fixed arm is so that hollow oil cylinder is reliable and stable；And rotary table support, rotating seat
Have the characteristics that intensity is high, rigidity is big, ensure that the overall stability of device, keep anchor pole stretching measurement process more reliable；
(4) it for the anchor pole tensioning with constructional deficiency under different condition, does not need to be equipped with different special connectors,
Apparatus structure is reasonable, easy to operate；High pretightening force and detection anchor force accurately can be applied to anchor pole.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the sectional view of angle adjustment device in the utility model；
Fig. 3 is the perspective view of angle adjustment device in the utility model；
Fig. 4 is the perspective view of rotary table support in the utility model.
In figure: 1, the first nut, 2, billet, 3, hollow oil cylinder, 4, hydraulic power supply, 5, oil cylinder fixed arm, 6, oil cylinder
Support base, 7, bolt, 8, angle adjustment device, 9, operation groove, 10, rotary table support, 11, drawing connecting rod, 12, connector sleeve,
13, the second nut, 14, irregular pallet, 15, anchor pole, 16, bolthole, 17, hanging stick, 18, convolution inner screw, 19, cyclic stick,
20, pin, 21, support rod, 22, female screw, 23, sub- screw, 24, central through hole, 25, rotating seat.
Specific embodiment
The utility model is described in further detail below.
As shown, the utility model includes hollow oil cylinder 3, oil cylinder fixed arm 5, angle adjustment device 8, rotary table support
10, drawing connecting rod 11 and hydraulic power supply 4,
Operation groove 9 is opened up on the rotary table support 10；
The angle adjustment device 8 includes that female screw 22 and rotating seat 25, rotating seat 25 are fixed on rotary table support 10
Portion opens up a great circle arc fluting in the rotating seat 25, and female screw 22 is placed in great circle arc fluting, under great circle arc fluting
Portion opens up cylindrical through slot and is connected to operation groove 9, is fixed with oil cylinder support base 6, oil cylinder support base 6 on mother's screw 22
On opened up the central through hole 24 of female 22 centre of sphere of screw；
The fixing end of the hollow oil cylinder 3 is fixedly connected with oil cylinder support base 6；
The drawing connecting rod 11 sequentially passes through center oil cylinder 3, central through hole 24 and operation groove 9, drawing connecting rod 11
One end be fixedly connected by the first nut 1 and billet 2 with the extension end of hollow oil cylinder 3, the other end of drawing connecting rod 11
Equipped with connector sleeve 12；The connector sleeve 12 is riffled tube；
The oil cylinder fixed arm 5 is two, and two oil cylinder fixed arms 5 are symmetricly set on the two sides of hollow oil cylinder 3, and oil cylinder is solid
Fixed arm 5 includes that hanging stick 17, convolution inner screw 18, cyclic stick 19 and support rod 21, one end of support rod 21 are fixed on rotating seat 25
Upper surface, the other end of support rod 21 is hinged by pin 20 and one end of cyclic stick 19, and the other end of cyclic stick 19 opens up
Be threadedly coupled slot, convolution inner screw 18 one end by screw thread be threadedly coupled slot connect, convolution inner screw 18 the other end and
One end of hanging stick 17 is hinged, and the other end of hanging stick 17 is fixed on the outer surface of hollow oil cylinder 3；
The hydraulic power supply 4 is in the side of rotary table support 10, and hydraulic power supply 4 is connected by pipeline and hollow oil cylinder 3
It is logical.
Further, the angle adjustment device 8 further includes multiple sub- screws 23, and female screw 22 is surrounded in rotating seat 25
Multiple roundlet arc flutings are opened up, multiple sub- screws 23 are respectively placed in multiple roundlet arc flutings, and each sub- screw 23 is
It is contacted with female screw 22.For this structure when female screw 22 rotates, reduction is played in 23 rotation of sub- screw being in contact with it
Frictional resistance when female screw 22 rotates.
Further, the fixing end of the hollow oil cylinder 3 is connect with oil cylinder support base 6 by bolt 7.It is connected using bolt 7,
Installation and removal during being easy to use.
Further, the rotating seat 25 is with rotary table support 10 by being welded and fixed；Using weld can guarantee rotating seat 25 with
The connective stability of rotary table support 10.
Further, the centre of sphere of female screw 22 and the centre of sphere of multiple sub- screws 23 are in same level.Using
This structure can keep female screw 22 in rotary course, and the coordinate position of the centre of sphere is constant always, be convenient for drawing connecting rod
11 angular adjustment.
The working process of the utility model is as follows: first angle adjustment device 8 is fixedly mounted on rotary table support 10, hollow oil
Cylinder 3 is fixed on oil cylinder support base 6, and hydraulic power supply 4 is connected to hollow oil cylinder 3；Two oil cylinder fixed arms 5 are symmetrical arranged
In the two sides of hollow oil cylinder 3, drawing connecting rod 11 is then sequentially passed through into center oil cylinder 3, central through hole 24 and operation groove 9,
One end of drawing connecting rod 11 and the extension end of hollow oil cylinder 3 are fixed by the first nut 1 and billet 2；By rotary table support
10 are placed at the anchor pole 15 in bolthole 16, are in the tail end of anchor pole 15 in operation groove 9, by cyclic stick 19 and branch
Pin 20 between strut 21 is removed, and separates cyclic stick 19 with support rod 21, starts that process is adjusted: by female screw
22 rotation in great circle arc fluting can drive hollow oil cylinder 3 and drawing connecting rod 11 to carry out angular adjustment, when drawing connecting rod
11 with anchor pole 15 when in same rectilinear direction, complete angular adjustment process, adjust returning for two oil cylinder fixed arms 5 respectively at this time
Spinner handle 19 and convolution 18 total length of inner screw, enable the end of cyclic stick 19 to reach the location of support rod 21, then load onto
It fixes the position of hollow oil cylinder 3 after pin 20, it is made to keep the tilt angle；The finally drawing connecting rod at operation groove 9
11 are connect by connector sleeve 12 with 15 tail portion of anchor pole；When starting to carry out anchor pole pulling test, hydraulic power supply 4 is opened, in starting
Empty oil cylinder 3 carries out tensioning to anchor pole 15；The pressure gauge reading on hydraulic power supply 4 is checked at this time, judges detected anchor pole 15
Whether anchor force reaches requirement or after whether power to be tensioned reaches preset preload force value, using assembly tool from operation
The second nut 13 and irregular pallet 14 are tightened in groove 9；Hydraulic power supply 4 is closed after the completion, lays down the load of hollow oil cylinder 3
Lotus；Complete the pulling test and pretightning force load of constructional deficiency anchor pole.
Claims (5)
1. a kind of tensioning equipment suitable for underground construction defective anchor bar, which is characterized in that solid including hollow oil cylinder (3), oil cylinder
Fixed arm (5), angle adjustment device (8), rotary table support (10), drawing connecting rod (11) and hydraulic power supply (4),
Operation groove (9) is opened up on the rotary table support (10)；
The angle adjustment device (8) includes that female screw (22) and rotating seat (25), rotating seat (25) are fixed on rotary table support
(10) top, the rotating seat (25) is interior to open up a great circle arc fluting, and female screw (22) is placed in great circle arc fluting, greatly
Arc groove lower part opens up cylindrical through slot and is connected to operation groove (9), and oil cylinder support is fixed on mother's screw (22)
Seat (6) opened up the central through hole (24) of female screw (22) centre of sphere on oil cylinder support base (6)；
The fixing end of the hollow oil cylinder (3) is fixedly connected with oil cylinder support base (6)；
The drawing connecting rod (11) sequentially passes through center oil cylinder (3), central through hole (24) and operation groove (9), drawing connection
One end of bar (11) is fixedly connected by the first nut (1) and billet (2) with the extension end of hollow oil cylinder (3), drawing connection
The other end of bar (11) is equipped with connector sleeve (12)；
The oil cylinder fixed arm (5) is two, and two oil cylinder fixed arms (5) are symmetricly set on the two sides of hollow oil cylinder (3), oil cylinder
Fixed arm (5) includes hanging stick (17), convolution inner screw (18), cyclic stick (19) and support rod (21), one end of support rod (21)
It is fixed on the upper surface of rotating seat (25), the other end of support rod (21) is cut with scissors by the one end of pin (20) and cyclic stick (19)
Connect, the other end of cyclic stick (19) opens up threaded connection slot, one end of convolution inner screw (18) by screw thread be threadedly coupled slot
One end of connection, the other end and hanging stick (17) of convolution inner screw (18) is hinged, and the other end of hanging stick (17) is fixed on hollow oil
The outer surface of cylinder (3)；
The hydraulic power supply (4) is in the side of rotary table support (10), and hydraulic power supply (4) passes through pipeline and hollow oil cylinder
(3) it is connected to.
2. the tensioning equipment according to claim 1 suitable for underground construction defective anchor bar, which is characterized in that the angle
Regulating device (8) further includes multiple sub- screws (23), and female screw (22) is surrounded in rotating seat (25) and opens up multiple small arc-shapeds
Groove, multiple sub- screws (23) are respectively placed in multiple roundlet arc flutings, and each sub- screw (23) with female screw
(22) it contacts.
3. the tensioning equipment according to claim 1 suitable for underground construction defective anchor bar, which is characterized in that described hollow
The fixing end of oil cylinder (3) is connect with oil cylinder support base (6) by bolt (7).
4. the tensioning equipment according to claim 1 suitable for underground construction defective anchor bar, which is characterized in that the rotation
Seat (25) is with rotary table support (10) by being welded and fixed.
5. the tensioning equipment according to claim 2 suitable for underground construction defective anchor bar, which is characterized in that female rotation
The centre of sphere of the centre of sphere and multiple sub- screws (23) that turn ball (22) is in same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820877788.8U CN208267880U (en) | 2018-06-07 | 2018-06-07 | Tensioning equipment suitable for underground construction defective anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820877788.8U CN208267880U (en) | 2018-06-07 | 2018-06-07 | Tensioning equipment suitable for underground construction defective anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267880U true CN208267880U (en) | 2018-12-21 |
Family
ID=64689270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820877788.8U Expired - Fee Related CN208267880U (en) | 2018-06-07 | 2018-06-07 | Tensioning equipment suitable for underground construction defective anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208267880U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756966A (en) * | 2018-06-07 | 2018-11-06 | 湖南科技大学 | A kind of tensioning equipment suitable for underground construction defective anchor bar |
| CN110284483A (en) * | 2019-07-09 | 2019-09-27 | 华北水利水电大学 | Engineering investigation static sounding platform supporting device |
| CN110700869A (en) * | 2019-10-15 | 2020-01-17 | 华北科技学院 | Anchor rod supporting structure |
| CN112982448A (en) * | 2021-02-18 | 2021-06-18 | 温州中岩基础工程有限公司 | Positioning device of variable angle anchor rod |
-
2018
- 2018-06-07 CN CN201820877788.8U patent/CN208267880U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756966A (en) * | 2018-06-07 | 2018-11-06 | 湖南科技大学 | A kind of tensioning equipment suitable for underground construction defective anchor bar |
| CN110284483A (en) * | 2019-07-09 | 2019-09-27 | 华北水利水电大学 | Engineering investigation static sounding platform supporting device |
| CN110700869A (en) * | 2019-10-15 | 2020-01-17 | 华北科技学院 | Anchor rod supporting structure |
| CN112982448A (en) * | 2021-02-18 | 2021-06-18 | 温州中岩基础工程有限公司 | Positioning device of variable angle anchor rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 Termination date: 20210607 |
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| CF01 | Termination of patent right due to non-payment of annual fee |