CN2818784Y - Anchor bolt - Google Patents
Anchor bolt Download PDFInfo
- Publication number
- CN2818784Y CN2818784Y CN 200520087110 CN200520087110U CN2818784Y CN 2818784 Y CN2818784 Y CN 2818784Y CN 200520087110 CN200520087110 CN 200520087110 CN 200520087110 U CN200520087110 U CN 200520087110U CN 2818784 Y CN2818784 Y CN 2818784Y
- Authority
- CN
- China
- Prior art keywords
- rod
- anchor
- rod body
- millimeters
- anchor pole
- Prior art date
- 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 an anchor rod, particularly a supporting product used in underground laneways in a coal mine. The anchor rod comprises a rod body (1) and an anchor head (2) which is positioned on one end of the rod body (1). The utility model is characterized in that the rod body (1) is formed by that quadrant iron is adopted and twisted into the shape of a bread twist, and a milling groove (3) is arranged on the rod body (1). After the rod body of the anchor rod adopts the quadrant iron to be twisted into the shape of a bread twist, under the premise that the tensile strength and the yield strength of the anchor rod are guaranteed, more than 20 percent of raw material is saved compared with the adoption of deformed steel bars in a same diameter; after the milling groove is additionally arranged, required force during bending the anchor rod is decreased, and workmen's labor strength and the bending accuracy are reduced, so a gap in the field is filled.
Description
Technical field
The utility model relates to a kind of anchor pole, relates to a kind of supporting product that the colliery underworkings uses that is used for specifically.
Background technology
Along with the development of mine bolt support technology, anchor pole increases gradually at the consumption of down-hole.According to mine or underground work requirement, the part anchor pole need change the fastening direction of anchor pole at different work planes.When often the workman carries out Bending Processing in the tunnel exactly bending and when the common anchor pole of bending, need bigger strength to the angle that needs, increased working strength of workers.On the other hand, existing anchor pole uses screw-thread steel to make the body of rod in a large number, and the steel expense is very big.Economizing on resources now becomes a big problem of industrial production and use, and pick has the potential to be tapped on the anchor pole material is saved.
The utility model content
The technical problems to be solved in the utility model is: a kind of colliery underworkings anchoring needs that both can satisfy are provided, save the conservation of raw material cost, bending easily again changes fastening direction, reduces a kind of anchor pole of labor strength.
This technical scheme of using novel its technical problem of solution to be adopted is: this a kind of anchor pole, comprise the body of rod and the anchor head that is positioned at the body of rod one end, and it is characterized in that: the body of rod adopts square steel to be twisted into twisted shape, and groove milling is set on the body of rod.
The catercorner length of square steel is 16 millimeters-24 millimeters.Groove milling is arranged on the middle part of the body of rod, but 100 millimeters groove milling single or double of length, milling depth 4-6 millimeter.
Compared with prior art, the beneficial effect that anchor pole of the present utility model has is: after the body of rod of anchor pole adopts square steel to be twisted into twisted shape, under the prerequisite of tensile strength that guarantees anchor pole and yield strength, compare with the screw-thread steel that adopts same diameter, save raw material and reach more than 20%, and after having increased groove milling, needed power reduces when making the bending anchor pole, stretching resistance is not less than 120KN after the groove milling, crooked 90 ° of 30-45 kilograms of exerting oneself during bending.Make workman's ratio be easier to crooked anchor pole, reduced labour intensity and workload.And improved the degree of accuracy of bending, filled up the blank in this area.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Fig. 1 is a most preferred embodiment of the present utility model, wherein: 1, the body of rod 2, anchor head 3, groove milling.
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, the body of rod 1 adopts square steel to be twisted into twisted shape, and anchor head 2 is at an end of the body of rod 1, and groove milling 3 is arranged on the middle part of the body of rod 1.Groove milling 3 is single-sided structure or bilateral structure.Mainly go out groove milling 3, make the body of rod 1 attenuation at groove milling 3 places to become thick plate-like by Milling Process.
After square steel was twisted into twisted shape, the diagonal of square steel grew up to the diameter for the fried dough twist steel.The body of rod 1 adopts this fried dough twist steel and original screw-thread steel to compare, and when diameter was identical, the needed raw material of fried dough twist steel were less than screw-thread steel.Fried dough twist steel with 20 millimeters of diameters is an example.Adopt 15 millimeters * 15 millimeters square steel, can reach about 20 millimeters through the cold fried dough twist steel external diameter that is modified to.The about 1.77kg of weight that 15 millimeters * 15 millimeters square steel is every meter, the screw-thread steel that diameter is 20 millimeters then is every meter 2.47kg.Tensile strength is greater than 620Mpa, and yield strength is greater than 420Mpa, under the prerequisite that reaches identical tensile strength and yield strength, uses the fried dough twist steel to compare with screw-thread steel, can save about 0.7kg raw material for every meter.Calculating according to the annual use amount hundreds of thousands of the existing metallic rod body anchor pole of China ton, save 28% raw material, will be the good effect of playing economizing on resources.
Different length (1400 millimeters-2000 millimeters) according to anchor pole carries out Milling Process 500 millimeters-800 millimeters positions to the fried dough twist steel anchor rod, processes 100 millimeters of the length of groove milling 3,4 millimeters-6 millimeters of the degree of depth of two-sided Milling Process.But also single face Milling Process.After the anchor pole groove milling processing, meet the safety in production requirement.Do bending and tensile test according to the practical application condition, stretching resistance is not less than 120KN, crooked 90 ° of 30-45 kilograms of exerting oneself during bending.Make workman's ratio be easier to crooked anchor pole, reduced labour intensity and workload.And improved the degree of accuracy of bending.
This band fixedly anchor pole of anchor head 2 is used in and does not need the place regulated under the coal mine.
Claims (3)
1, a kind of anchor pole comprises the body of rod (1) and is positioned at the anchor head (2) of the body of rod (1) one end, it is characterized in that: the body of rod (1) adopts square steel to be twisted into twisted shape, and groove milling (3) is set on the body of rod (1).
2, a kind of anchor pole according to claim 1 is characterized in that: the catercorner length of square steel is 16 millimeters-24 millimeters.
3, a kind of anchor pole according to claim 1 is characterized in that: groove milling (3) is arranged on the middle part of the body of rod (1), 100 millimeters of length, milling depth 4-6 millimeter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520087110 CN2818784Y (en) | 2005-09-14 | 2005-09-14 | Anchor bolt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520087110 CN2818784Y (en) | 2005-09-14 | 2005-09-14 | Anchor bolt |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2818784Y true CN2818784Y (en) | 2006-09-20 |
Family
ID=37004838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200520087110 Expired - Fee Related CN2818784Y (en) | 2005-09-14 | 2005-09-14 | Anchor bolt |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2818784Y (en) |
-
2005
- 2005-09-14 CN CN 200520087110 patent/CN2818784Y/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |