CN1584293A - Mechanical resin rockbolt with agitatnig and fastening mixed primary finish - Google Patents
Mechanical resin rockbolt with agitatnig and fastening mixed primary finish Download PDFInfo
- Publication number
- CN1584293A CN1584293A CN 200410032009 CN200410032009A CN1584293A CN 1584293 A CN1584293 A CN 1584293A CN 200410032009 CN200410032009 CN 200410032009 CN 200410032009 A CN200410032009 A CN 200410032009A CN 1584293 A CN1584293 A CN 1584293A
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- China
- Prior art keywords
- nut
- damping
- shear pin
- bolter
- roof
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Abstract
The invention relates to mechanical resin rockbolt with agitating and fastening mixed primary finish, and which is constituted by rockbolt body, tray, and fixed moment screwed nut. The invention arranged damping mechanism between lower end of the fixed moment screwed nut and rockbolt bolt. When the nut is mounted at the damping position, the nut is relatively fixed under the effect of the predetermined resisting moment, because the resisting moment is larger than the maximum moment required for rockbolt machine to agitating the resin thereby able to drive the rockbolt to complete the agitating procedure. The resin curdles rapidly after agitating, when the resin reaches the preliminary curd intensity (< = 20 sec), then the rockbolt can be operated to screw the nut to break and invalid the damping construction, and the rockbolt drives the nut to screw for reaching the designed torque. In this manner, the rockbolt completes all procedures for agitating resin and screwing bolt in one time. So the invention can save time and effort, and eliminates the influence to screwing quality caused by manual screwing.
Description
Technical field
The present invention relates to a kind of mechanical resin anchor that mine and tunnel support use that is used for.
Background technology
The mechanical resin anchor that uses on the prior art all is the double nuts structure that adopts, the traveling nut of promptly under pallet, packing into earlier, be used for behind hardening of resin, carrying out fastening to anchor pole, anchor pole end under this nut welds a hold-down nut more simultaneously, be used for roof-bolter and block this nut drive anchor pole rotation, resin explosive roll is stirred.The resin anchor of this structure not only more has adorned a nut, and the stirring of anchor pole and fastening can not once being finished by roof-bolter, must use manually fastening again after resin reaches initial set.Not only waste time and energy, and fastening force influences by human factor, be difficult to guarantee fastening quality.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of and once finish resin stirring and fastening new type resin anchor pole by jumbolter.
Feature of the present invention is, this anchor pole is by anchor bar body (1), pallet (2) and decide moment and screw nut and constitute.The moment of deciding of only adorning a thickening at the end of resin anchor screws nut, the restricted nut of design must surpass the damping structure that just can screw under the damping torque of setting between the bolt that moment screws nut and anchor bar body deciding, when nut is screwed into the bolt end of anchor bar body and forms damping state, this damping structure stops nut to continue to screw in, and the damping torque that makes its formation is greater than the required maximum moment of roof-bolter agitating resin, guarantee abundant stirring to resin explosive roll, after finishing stirring (being generally 12 to 14 seconds), roof-bolter stops to drive the anchor pole rotation, resin begins to solidify, when treating that resin reaches initial setting strength (general≤20 seconds), roof-bolter begins to drive nut and screws, because this moment, resin was fixing with anchor pole and boring, and the clamp load torque of roof-bolter is much larger than the formed damping torque of damping structure, the destroyed inefficacy of damping structure, nut begins to screw, and reaches design torque.Roof-bolter is disposable have been finished from whole operations of boring, the anchor pole of packing into, agitating resin and fastening anchor pole thereby make, not only time saving and energy saving, and has eliminated the influence of human factor to fastening force, has guaranteed fastening quality.
Feature of the present invention is, is processed with on the corner of pallet (2) and hangs the hole, can be used for hanging light-duty objects such as air duct, cable.
Description of drawings
Accompanying drawing is an integration scenario schematic diagram of the present invention
Specific embodiments
Damping structure of the present invention is characterized in that, available following any one scheme realizes.
Scheme one: end cap damped method: promptly process a bayonet socket greater than major diameter of thread in the lower end of nut (3), an and dome (4) in this bayonet socket, press-fiting, this dome forms the damping torque of setting to screwing of nut, this damping torque is both greater than the required maximum moment of agitating resin, the minimum moment that can bear when reaching initial setting strength less than resin again, and safety factor is arranged.When the Tightening moment of roof-bolter during greater than this damping torque, dome (4) inefficacy that comes off, nut (3) screws under roof-bolter drives.
Scheme two: the axial shear pin damped method of shearing: promptly process a cylindrical hole greater than major diameter of thread in the lower end of nut (5), and on the position in this hole, process a radial direction through hole, the shear pin (6) of in through hole, packing into, this shear pin forms the damping torque of setting to the screw-in of nut, upward be processed with the stress groove on the position with respect to the cylindrical hole internal diameter at this shear pin (6), guaranteeing that it reliably cuts off when reaching design stress, rather than crooked.When the Tightening moment of roof-bolter during greater than the damping torque of this nut, shear pin (6) is cut off inefficacy, and nut (5) screws under the drive of roof-bolter.
Scheme three: the tangential shear pin damped method of shearing: this method has two kinds of structures again, a kind ofly be, damping slot in the bolt head processing of anchor bar body, bore a last radial hole that shear pin (6) is installed in the edge of nut (5) lower end, when nut (5) being screwed into bolt head and making pin-and-hole and notch is squeezed into shear pin (6) again to timing, make this shear pin form the damping torque of setting to screwing of nut, when the Tightening moment of roof-bolter greater than shear pin during to the formed damping torque of nut, shear pin (6) is cut off inefficacy, and nut (5) screws under the drive of roof-bolter.Another kind is, go up damping slot in the processing of the edge of nut (5) lower end, bolt head at anchor bar body bores a radial hole that shear pin (6) is installed, when nut (5) being screwed into bolt head and making notch and pin-and-hole is squeezed into shear pin (6) again to timing, make this shear pin form the damping torque of setting to screwing of nut.Preceding a kind of structure is compared with a kind of structure in back and is had the following advantages, the first, in the bolt head available disc milling cutter processing of slotting, process is simple, cutter is durable, be easy to realize automatic tool preset and feed, then a kind of famine is holed on bolt, because bolt is exterior arc surface and screw thread influence arranged, and the therefore bad location of drill bit when boring, damage drill bit easily, be difficult to realize automatic location.It two is, the former directly squeezes into shear pin on nut, and operation is more convenient, and the latter need squeeze into shear pin by notch, relatively difficulty.
Scheme four: join brill and add the shear pin damped method: promptly after nut (5) is screwed into the bolt head of anchor bar body (1), the method that brill is joined in employing is at a pull out of hole radial hole and squeeze into shear pin (6) in this hole of the bolt one near the place, lower edge of nut and anchor bar body, this shear pin is screwed nut form the damping torque of setting, when the Tightening moment of roof-bolter during greater than this damping torque, shear pin (6) is cut off inefficacy, and nut (5) screws under the drive of roof-bolter.
Scheme five: the damped method of between the spiral shell button, inserting the shear pin bar: promptly buckle at the spiral shell of screw rod and nut respectively and respectively process cotter way half, when nut (11) spinning is just squeezed into pin bar (12) during to the design attitude of screw rod (1) in the pin-and-hole that two cotter ways constitute, the pin bar is screwed nut form the damping torque of setting, when the Tightening moment of roof-bolter during greater than this damping torque, pin bar (12) is sheared inefficacy, and nut (11) screws under the drive of roof-bolter.
Scheme six: it is around-France that damping is withheld in the nut lower end: promptly process a bayonet socket greater than major diameter of thread in the lower end of nut (7), and in bayonet socket, press-fit a damping ring (8), make this damping ring form the damping torque of setting to screwing of nut, when the Tightening moment of roof-bolter during greater than this damping torque, the destroyed inefficacy of damping ring, nut screws under roof-bolter drives.This damping ring can adopt any suitable nonmetal or softer metals to make.
Scheme seven: nut tail screw thread injection moulding: promptly go up injection slot (10) in the processing of the tail screw thread place of nut (9) lower end, and injection moulding should be located to fill and lead up with screw thread in groove, this injection moulding is screwed nut form the damping torque of setting, when the Tightening moment of roof-bolter during greater than the damping torque of this nut, the destroyed inefficacy of injection moulding (10), nut (9) screws under the drive of roof-bolter.
Feature of the present invention also is, can adopt mould for the shear pin made from steel (6) and stress groove The technology of forging is made. Can also become one-sided shear pin (6) arbitrary load or sided configuration, so-called single Side structure is exactly one-sided half a section shear pin of packing at screw rod or nut, and this shear pin can also adopt Any suitable little materials of shearing strength such as nonmetal or soft metal are made, and machining stress not Groove forms the damping torque of setting as long as shear pin is screwed nut.
Feature of the present invention is that also pin bar (12) can adopt soft metal or nonmetallic material to make, Also can make any suitable section configuration to pin bar and pin-and-hole.
Pallet among the present invention (2) can be processed into square or circular. It is characterized in that, can be at pallet Be processed with on the corner and hang the hole. For disc steel plate pallet, can stamp out earlier in the top of disk edge A groove gets out a circular hole at the oblique center position of bottom land then; For the pallet of cast form, can It is protruding to cast out an ear with the edge below pallet, then in the protruding boring of ear; For what make with steel plate Square pallet can be turned up under the angle with pallet, and hole at knuckle.
Claims (12)
1, stirring and fastening one step completed mechanical resin anchor is characterized in that, this anchor pole is by anchor bar body (1), pallet (2) and decide moment and screw nut and constitute.The restricted nut of design must surpass the damping structure that just can screw under the damping torque of setting between the bolt that moment screws nut and anchor bar body deciding, the formed damping torque of this damping structure is both greater than the required maximum moment of agitating resin, the minimum moment that can bear when reaching initial setting strength less than resin again, and safety factor is arranged.When the Tightening moment of roof-bolter during, the destroyed inefficacy of damping structure, decide moment and screw nut and under the drive of roof-bolter, screw greater than damping torque.
2, damping structure according to claim 1, it is characterized in that, can adopt the end cap damped method to realize, the lower end that is nut (3) processes a bayonet socket greater than major diameter of thread, and a dome (4) in this bayonet socket, press-fiting, the damping torque that this dome form to be set screwing of nut is when the Tightening moment of roof-bolter during greater than this damping torque, dome (4) inefficacy that comes off, nut (3) screws under the drive of roof-bolter.
3, damping structure according to claim 1, it is characterized in that, can also adopt the shear pin damped method of axial shearing to realize, promptly process a cylindrical hole greater than major diameter of thread in the lower end of nut (5), and on the position in this hole, process a radial direction through hole, the shear pin (6) of in through hole, packing into, this shear pin forms the damping torque of setting to the screw-in of nut, upward be processed with the stress groove on the position with respect to the cylindrical hole internal diameter at this shear pin (6), guaranteeing that it reliably cuts off when reaching design stress, rather than crooked.When the Tightening moment of roof-bolter during greater than the damping torque of this nut, shear pin (6) is cut off inefficacy, and nut (5) screws under the drive of roof-bolter.
4, damping structure according to claim 1, it is characterized in that, can also adopt the shear pin damped method of tangential shearing to realize, this method has two kinds of structures again, a kind ofly be, damping slot in the bolt head processing of anchor bar body, bore a last radial hole that shear pin (6) is installed in the edge of nut (5) lower end, when nut (5) being screwed into bolt head and making pin-and-hole and notch is squeezed into shear pin (6) again to timing, make this shear pin form the damping torque of setting to screwing of nut, when the Tightening moment of roof-bolter greater than shear pin during to the formed damping torque of nut, shear pin (6) is cut off inefficacy, nut (5) screws under the drive of roof-bolter.Another kind is, go up damping slot in the processing of the edge of nut (5) lower end, bolt head at anchor bar body bores a radial hole that shear pin (6) is installed, when nut (5) being screwed into bolt head and making notch and pin-and-hole is squeezed into shear pin (6) again to timing, make this shear pin form the damping torque of setting to screwing of nut.
5, damping structure according to claim 1, it is characterized in that, can also adopt to join to bore and add the realization of shear pin damped method, promptly after nut (5) is screwed into the bolt head of anchor bar body (1), the method that brill is joined in employing is at a pull out of hole radial hole and squeeze into shear pin (6) in this hole of the bolt one near the place, lower edge of nut and anchor bar body, this shear pin is screwed nut form the damping torque of setting, when the Tightening moment of roof-bolter during greater than this damping torque, shear pin (6) is cut off inefficacy, and nut (5) screws under the drive of roof-bolter.
6, according to claim 3,4,5 described shear pins (6), it is characterized in that, can also adopt any suitable little materials of shear strength such as nonmetal or soft metal to make, and machining stress groove not, as long as being screwed nut, shear pin forms the damping torque of setting.
7, according to claim 3,4,5 described shear pins (6), it is characterized in that, can adopt the technology of die forging to make for shear pin made from steel and stress groove.
8, damping structure according to claim 1, it is characterized in that, can also adopt the damped method of between the spiral shell button, inserting the shear pin bar to realize, promptly buckle at the spiral shell of screw rod and nut respectively and respectively process cotter way half, when nut (11) spinning is just squeezed into pin bar (12) during to the design attitude of screw rod (1) in the pin-and-hole that two cotter ways constitute, the pin bar is screwed nut form the damping torque of setting, when the Tightening moment of roof-bolter during greater than this damping torque, pin bar (12) is sheared inefficacy, and nut (11) screws under the drive of roof-bolter.Pin bar (12) can adopt soft metal or nonmetallic material to make, and also can make any suitable cross sectional shape to pin bar and pin-and-hole.
9, damping structure according to claim 1, it is characterized in that, can also adopt the nut lower end to withhold the around-France realization of damping, promptly process a bayonet socket greater than major diameter of thread in the lower end of nut (7), and in bayonet socket, press-fiting a damping ring (8), the damping torque that this damping ring form to be set screwing of nut is when the Tightening moment of roof-bolter during greater than this damping torque, the destroyed inefficacy of damping ring, nut screws under roof-bolter drives.This damping ring can adopt any suitable nonmetal or softer metals to make.
10, damping structure according to claim 1, it is characterized in that, can also adopt nut tail screw thread injection moulding to realize, promptly go up injection slot (10) in the processing of the tail screw thread place of nut (9) lower end, and injection moulding should be located to fill and lead up with screw thread in groove, this injection moulding is screwed nut form the damping torque of setting, when the Tightening moment of roof-bolter during greater than the damping torque of this nut, the destroyed inefficacy of injection moulding (10), nut (9) screws under the drive of roof-bolter.
11, pallet according to claim 1 (2) can be processed into circular or square.It is characterized in that, can on the corner of pallet, be processed with and hang the hole.For the circular steel sheet tray, can on the pallet edge, stamp out a groove earlier, bore an open-work at the oblique center position of bottom land then; It is protruding to cast out an ear on can the edge below pallet for the pallet of cast form, boring on ear is protruding then; Can will turn up under the one angle for the square plate pallet, and on knuckle, hole.
12, stirring of the present invention and fastening one step completed mechanical resin anchor is characterized in that being applied in mine or tunnel support field, are a kind of resin anchors that is particularly suitable for adopting the mechanization Fast Installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410032009 CN1584293A (en) | 2003-08-01 | 2004-03-16 | Mechanical resin rockbolt with agitatnig and fastening mixed primary finish |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03143768 | 2003-08-01 | ||
| CN03143768.0 | 2003-08-01 | ||
| CN 200410032009 CN1584293A (en) | 2003-08-01 | 2004-03-16 | Mechanical resin rockbolt with agitatnig and fastening mixed primary finish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1584293A true CN1584293A (en) | 2005-02-23 |
Family
ID=34621006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410032009 Pending CN1584293A (en) | 2003-08-01 | 2004-03-16 | Mechanical resin rockbolt with agitatnig and fastening mixed primary finish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1584293A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943015A (en) * | 2010-09-10 | 2011-01-12 | 中国恩菲工程技术有限公司 | Anchor rod for strengthening tunnels |
| CN102678145A (en) * | 2012-04-20 | 2012-09-19 | 中钢集团马鞍山矿山研究院有限公司 | Efficient novel construction method for resin anchor rod |
| CN104912893A (en) * | 2015-05-28 | 2015-09-16 | 安徽淮河化工股份有限公司 | Fixed-torque nut used in cooperation with anchor rod |
-
2004
- 2004-03-16 CN CN 200410032009 patent/CN1584293A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943015A (en) * | 2010-09-10 | 2011-01-12 | 中国恩菲工程技术有限公司 | Anchor rod for strengthening tunnels |
| CN102678145A (en) * | 2012-04-20 | 2012-09-19 | 中钢集团马鞍山矿山研究院有限公司 | Efficient novel construction method for resin anchor rod |
| CN104912893A (en) * | 2015-05-28 | 2015-09-16 | 安徽淮河化工股份有限公司 | Fixed-torque nut used in cooperation with anchor rod |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |