CN2342098Y - Case expanding type anchor head and anchor rod - Google Patents
Case expanding type anchor head and anchor rod Download PDFInfo
- Publication number
- CN2342098Y CN2342098Y CN 98218917 CN98218917U CN2342098Y CN 2342098 Y CN2342098 Y CN 2342098Y CN 98218917 CN98218917 CN 98218917 CN 98218917 U CN98218917 U CN 98218917U CN 2342098 Y CN2342098 Y CN 2342098Y
- Authority
- CN
- China
- Prior art keywords
- rod
- anchor
- anchor head
- shell type
- expansion shell
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a case expanding type anchor head and an anchor rod. The utility model comprises a rod body, an anchor head which is composed of a taper sleeve and a taper core. The taper sleeve is made of metal, a plurality of reverse wings are arranged on the outer surface of the taper sleeve, and a heading which is connected with the rod body into integration is arranged at the tail of the rod body. The utility model has the advantages of higher tensile strength, higher shearing strength, and easy installation. The rod body of the anchor rod can be recovered. The utility model can be used for supporting top plates of mines and coal roads and reinforcing the surrounding rock of underground passages.
Description
The utility model relates to top board, base plate or lining shaft protection anchor pole.
At present, the anchor pole that uses when supporting mine, butt entry roof of people mostly is resin anchor.The tapered sleeve of its anchor head of expansion shell type anchor head anchor pole that minority is known is made of plastics, anchored force is little, and the afterbody of anchor pole is the structure that adopts nut to be connected with screw rod, and being threaded, not only tensile strength is low, and reduced the cross section of anchor rod body, reduced its tension, shear strength.This anchor pole makes trouble, price is higher, install take a lot of work, time-consuming and can't reclaim.Because of its intensity is low, in the supporting design, the layout of anchor pole is closeer, and support cost increases thereupon.
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of tension, shear strength height, the expansion shell type anchor head anchor pole that utilizes again easy for installation, cheap, recyclable are provided.
The utility model expansion shell type anchor head anchor pole comprises the body of rod, by tapered sleeve and the anchor head formed of awl core, described tapered sleeve is made of metal, its external surface is processed with several and falls wing, described body of rod afterbody is provided with the heading that fuses with it.
The further improvements of the utility model expansion shell type anchor head anchor pole are to be equipped with on the described body of rod back nut of supporting tapered sleeve.
Another further improvements of the utility model expansion shell type anchor head anchor pole are that heading is made up of square toes and the shoulder that links together with it.
The another further improvements of the utility model expansion shell type anchor head anchor pole are to be shaped on the body of rod left hand thread.
The utility model expansion shell type anchor head anchor pole further improvements again is to be equipped with on the body of rod back-up ring.
The utility model expansion shell type anchor head anchor pole also further improvements is to be shaped on the through hole perpendicular with its axis apart from 10～15 millimeters places of its leading section on the described awl core, and dowel is housed in the hole.
The utility model expansion shell type anchor head anchor pole, because of adopting metal, makes its tapered sleeve, external surface is processed with down wing, body of rod afterbody is provided with the heading that fuses with it, thereby its tension, shear strength have been improved greatly, the structure that the afterbody that its manufacturing cost is known than oneself adopts nut to be connected with screw rod is low, and installs easily, with the also desirable recycling down of back anchor rod body.
Other details of the utility model expansion shell type anchor head anchor pole and characteristics can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings, wherein:
Fig. 1 is the left view of the utility model expansion shell type anchor head anchor pole;
Fig. 2 is the sectional view of being done along Fig. 1 A-A line;
Fig. 3 is the right view of expansion shell type anchor head anchor pole shown in Figure 1;
Fig. 4 is the awl cored structure schematic diagram of expansion shell type anchor head anchor pole shown in Figure 1;
Fig. 5 is the tapered sleeve structural representation of expansion shell type anchor head anchor pole shown in Figure 1.
With reference to Fig. 1～Fig. 5.The utility model expansion shell type anchor head anchor pole comprises the body of rod 1, tapered sleeve 2 and awl core 3.The heading 4 of the body of rod 1 afterbody is made with the body of rod 1 mold pressing.Heading 4 is made up of square toes 5 and the shoulder 6 that links together with it.Shoulder 6 can increase the contact area of anchor pole and back.The body of rod 1 for example can select for use 20MnSi building screw-thread steel to make, and is shaped on left hand thread on it.Tapered sleeve 2 can be used cast steel, and for example 3
#Steel, manganese silicon steel etc. are made, to increase its tensile strength.The external surface of tapered sleeve 2 is processed with several and falls wing 7, so that increase the adhesion between anchor head and the deep rock.Awl core 3 interconnects with the body of rod 1 usefulness screw thread, be shaped on the through hole 8 (Fig. 4) perpendicular on the awl core 3 with its axis, can insert the dowel (not shown) in the hole 8, the purpose of inserting dowel is to limit the length of the body of rod 1 in off working state screws in awl core 3 screws, guarantee that the top of anchor rod body 1 do not stretch out anchor head pin core, preferably retraction is 15～20 millimeters.When skyhook, make it to push up disconnected dowel by the roof-bolter rotation body of rod 1 and screw in awl core 3, and then make awl core 3 tapered sleeve 2 spreadings, the wing that falls of tapered sleeve 2 is embedded in the rock tightly.The nut 9 that is used to support tapered sleeve 2 is housed on the body of rod 1, when skyhook, prevents to move backward when tapered sleeve 2 from being bored core 3 extruding.During skyhook, for increasing the adhesion of anchor pole and rock, the rapid resin anchoring agent of some can be sent in the hole, for preventing that resin may be along the body of rod 1 toward dirty, can establish a back-up ring (not shown) in the about 300 millimeters places under anchor head, back-up ring can be fixed on the body of rod 1 with welding or other modes.
When using the utility model expansion shell type anchor head anchor pole to make roof timbering, but subdrilling one hole depth rate rock-bolt length is grown 25～35 millimeters hole, with roof-bolter anchor pole is sent into top board then, relies on the rotation of roof-bolter to make anchor pole reach the installation required torque.The utility model expansion shell type anchor head anchor pole also can be used for the reinforcing of other underground passage circle rocks.
If need to use resin anchoring agent, can in the hole, pour into the rapid resin anchoring agent of some earlier, and then put into the body of rod and have the anchor pole of left hand thread and screw, resin anchoring agent was stirred along with anchor pole rotation and the trend that is sent to direction at the bottom of the hole was constantly arranged this moment, thus avoid resin solidify go to dirty.
Because the utility model expansion shell type anchor head anchor pole has higher tension and shear strength, so can suitably strengthen the row's spacing and the line space of anchor pole, reduce the consumption of anchor pole, improve installation rate, and then reduced support cost.Anchor pole with after also the body of rod 1 can be regained and use again.
Claims (6)
1, a kind of expansion shell type anchor head anchor pole comprises the body of rod, by tapered sleeve and the anchor head formed of awl core, it is characterized in that described tapered sleeve is made of metal, and its external surface is processed with several and falls wing, and described body of rod afterbody is provided with the heading that fuses with it.
2,, it is characterized in that being equipped with on the described body of rod back nut of supporting tapered sleeve according to the described expansion shell type anchor head of claim 1 anchor pole.
3,, it is characterized in that described heading is made up of square toes and the shoulder that links together with it according to claim 1 or 2 described expansion shell type anchor head anchor poles.
4, according to the described expansion shell type anchor head of claim 3 anchor pole, it is characterized in that being shaped on left hand thread on the described body of rod.
5, according to the described expansion shell type anchor head of claim 4 anchor pole, it is characterized in that on the described body of rod back-up ring being housed.
6, according to the described expansion shell type anchor head of claim 5 anchor pole, it is characterized in that being shaped on the through hole perpendicular apart from 10～15 millimeters places of its leading section on the described awl core with its axis, dowel is housed in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98218917 CN2342098Y (en) | 1998-09-01 | 1998-09-01 | Case expanding type anchor head and anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98218917 CN2342098Y (en) | 1998-09-01 | 1998-09-01 | Case expanding type anchor head and anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2342098Y true CN2342098Y (en) | 1999-10-06 |
Family
ID=33971144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98218917 Expired - Fee Related CN2342098Y (en) | 1998-09-01 | 1998-09-01 | Case expanding type anchor head and anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2342098Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994315A (en) * | 2010-10-16 | 2011-03-30 | 山东科技大学 | Full-length adhesive prestressed anchor rod and construction method thereof |
| CN102392569A (en) * | 2011-08-04 | 2012-03-28 | 杭州银都餐饮设备有限公司 | Novel four-DOF (four-degree-of-freedom) limited fridge door shaft sleeve |
| CN105114110A (en) * | 2015-09-21 | 2015-12-02 | 洛阳中岩工程材料有限公司 | Novel slide way type expanding-shell anchor head |
-
1998
- 1998-09-01 CN CN 98218917 patent/CN2342098Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994315A (en) * | 2010-10-16 | 2011-03-30 | 山东科技大学 | Full-length adhesive prestressed anchor rod and construction method thereof |
| CN102392569A (en) * | 2011-08-04 | 2012-03-28 | 杭州银都餐饮设备有限公司 | Novel four-DOF (four-degree-of-freedom) limited fridge door shaft sleeve |
| CN105114110A (en) * | 2015-09-21 | 2015-12-02 | 洛阳中岩工程材料有限公司 | Novel slide way type expanding-shell anchor head |
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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 |