CN201687495U - Truss interlocker - Google Patents
Truss interlocker Download PDFInfo
- Publication number
- CN201687495U CN201687495U CN2010202223603U CN201020222360U CN201687495U CN 201687495 U CN201687495 U CN 201687495U CN 2010202223603 U CN2010202223603 U CN 2010202223603U CN 201020222360 U CN201020222360 U CN 201020222360U CN 201687495 U CN201687495 U CN 201687495U
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- China
- Prior art keywords
- truss
- interlocker
- anchor
- ropes
- anchor cable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a truss interlocker, which is applicable to a truss support of a mine roadway. The truss interlocker comprises two steel sleeves which are provided with a wedge-shaped anchor rope hole and are connected into a whole; the steel sleeves are internally and respectively provided with a wedge-shaped anchor rope locking core matched with the wedge-shaped anchor rope hole; two steel sleeves are overlaid in a cross manner by an offset angle alpha of 10-14 degrees and fixed on a base. Two anchor ropes crossly pass through the anchor rope holes, the tail sides of the anchor ropes are provided with the anchor rope locking cores, and special tensioning equipment for the truss is used for tension pretightening to the anchor ropes. The truss interlocker can realize larger prestretching on the anchor ropes of the truss, and improve the support capability of the truss for a stress concentration area of the roadway; the radial and axial rotation of the interlocker can be effectively blocked by the reacting force of a rock surface to the base of the interlocker and the reacting force couple generated by the crossed anchor ropes, the anchor ropes can be prevented from being acted by shearing force, and the stressed state of the anchor ropes can be obviously improved; and the truss interlocker is simple in structure and convenient in installation and saves materials.
Description
Technical field
The utility model relates to a kind of truss interlocker, is particularly useful for the truss support of mine laneway anchor pole (rope).
Background technology
The truss support technology is a kind of special shape of roadway bolt (rope) support technology, it is primarily aimed at that shoulder nest, two in tunnel is helped to concentrate with the middle part iso-stress of top board or the tangible zone of displacement, with the basis of deep rock mass as anchor point and supporting and protection structure, the extrusion stress district of formation level or vertical direction in country rock, the overall performance of raising supporting and protection structure.Owing to, often take the form of anchor cable truss in the construction to the requirement of anchorage depth.The anchor cable truss support has higher requirement for the mechanical property of accessory, and one of key is the truss connector that links two prestress anchorage cables.Truss connector in the past mostly is the metal blocks that includes two parallel holes, and two anchor cables in the trussed construction pass connector, and tail end utilizes lockset that anchor cable is carried out stretch-draw.Because the influence of reverse tension, on connector, produce a pair of couple in the same way, and the size impact of the anchor cable lockset that adds the cross-sectional sizes of connector, cause couple numerical value bigger, thereby caused the plane rotation phenomenon of connector, make anchor cable change tensile stress and shear stress state into, greatly influenced the performance of anchor cable and truss performance by tensile stress state.Change this situation, will reduce the size of lockset on the one hand, will change the geometry of connector inside on the other hand, thereby reduce or eliminate the influence of couple.
Summary of the invention
The purpose of this utility model is the weak point that overcomes prior art, and a kind of compact conformation is provided, and is simple to operate, the truss interlocker that result of use is good.
For achieving the above object, truss interlocker of the present utility model, comprise and have two steel bushings that wedge shape anchor cable hole is connected as a single entity, be respectively equipped with the wedge shape anchor cable lock core that matches with wedge shape anchor cable hole in two steel bushings, two steel bushings are that 10～14 ° of intersection stacks are fixed on the base with skew angle.
Described two steel bushing casting that are connected as a single entity form; Described wedge shape anchor cable lock core is that two lobes or three lobes are put together; The length of described two steel bushings is 100～150mm.
Beneficial effect: the interlocker base and the scar of employing are close to, and utilize the effect counter-force of scar can stop the radially rotation of interlocker; Truncated cone-shaped intersection anchor cable hole can make after drawing anchor cable to apply prestressing force and produce opposing torque, thereby eliminates or alleviated the axial rotation phenomenon of interlocker; Anchor cable connects with pretension integrated, can amplitude peak reduces the angle between anchor cable and the lockset, obviously improves the stress of anchor cable; Simple in structure, easy for installation, can also save certain material simultaneously.It is simple in structure, uses longly with the life-span, easy and simple to handle, has practicality widely in the present technique field.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an anchorage cable stretching angle schematic diagram of the present utility model.
Fig. 3 is a lock core generalized section of the present utility model.
Among the figure: 1-anchor cable, 2-steel bushing, 3-wedge shape anchor cable hole, 4-wedge shape anchor cable lock core, 5-base.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
A kind of truss interlocker of the utility model, main by two steel bushings 2 up and down that are connected as a single entity, wedge shape anchor cable lock core 4 and base 5 constitute, two steel bushing 2 casting form, the arrival end of two steel bushings 2 has the wedge shape anchor cable hole 3 that wears anchor pole (rope) up and down, be provided with the wedge shape anchor cable lock core 4 that matches with it in the wedge shape anchor cable hole 3, wedge shape anchor cable lock core 4 is that two lobes or three lobes are put together, the length of steel bushing 2 is 100～150mm, two steel bushings 2 are that 10～14 ° of intersection stacks are fixed on the base 5 with skew angle, can make anchor cable produce certain angle excursion, help anchor cable and can not produce stress and concentrate, thereby guarantee stress equalization.The cylinder side diameter D in wedge shape anchor cable hole 3 is generally 35～45mm, and no cylinder side diameter d is generally 18～26mm.During use, 1 pair of two anchor cable are passed two intersection anchor cable holes 3, the base 5 of guaranteeing interlocker is installed anchor cable lock core 4 near the tunnel scar in anchor cable tail end one side, utilizes the special-purpose tensioning equipment of truss that anchor cable is carried out the stretch-draw pretension and gets final product.
Claims (3)
1. truss interlocker, it is characterized in that: it comprises and has two steel bushings (2) that wedge shape anchor cable hole (3) is connected as a single entity, be respectively equipped with the wedge shape anchor cable lock core (4) that matches with wedge shape anchor cable hole (3) in two steel bushings (2), two steel bushings (2) are that 10～14 ° of intersection stacks are fixed on the base (5) with skew angle.
2. truss interlocker according to claim 1 is characterized in that: described two steel bushings (2) casting that is connected as a single entity forms.
3. truss interlocker according to claim 1 is characterized in that: the length of described two steel bushings (2) is 100～150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202223603U CN201687495U (en) | 2010-06-05 | 2010-06-05 | Truss interlocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202223603U CN201687495U (en) | 2010-06-05 | 2010-06-05 | Truss interlocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687495U true CN201687495U (en) | 2010-12-29 |
Family
ID=43375780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202223603U Expired - Fee Related CN201687495U (en) | 2010-06-05 | 2010-06-05 | Truss interlocker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993667A (en) * | 2014-03-24 | 2014-08-20 | 淮海工学院 | Joint suitable for connection between string truss stay bar and multiple cables |
| CN112483147A (en) * | 2020-12-25 | 2021-03-12 | 江苏宝利国际投资股份有限公司 | Opposite-penetrating double-locking anchor cable supporting system for reinforcing soft rock columns of double-hole highway tunnel |
-
2010
- 2010-06-05 CN CN2010202223603U patent/CN201687495U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993667A (en) * | 2014-03-24 | 2014-08-20 | 淮海工学院 | Joint suitable for connection between string truss stay bar and multiple cables |
| CN112483147A (en) * | 2020-12-25 | 2021-03-12 | 江苏宝利国际投资股份有限公司 | Opposite-penetrating double-locking anchor cable supporting system for reinforcing soft rock columns of double-hole highway tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20140605 |