CN102635616A - Self-tangency broaching anchor bolt - Google Patents
Self-tangency broaching anchor bolt Download PDFInfo
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- CN102635616A CN102635616A CN2012101124981A CN201210112498A CN102635616A CN 102635616 A CN102635616 A CN 102635616A CN 2012101124981 A CN2012101124981 A CN 2012101124981A CN 201210112498 A CN201210112498 A CN 201210112498A CN 102635616 A CN102635616 A CN 102635616A
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Abstract
The invention discloses a self-tangency broaching anchor bolt comprising a sleeve, wherein the lower end of the sleeve is provided with an expansion structure, the upper end of the sleeve is provided with a clamp groove which is embedded with an installing tool, the expansion structure comprises a plurality of expansion pieces, the lower end of the expansion structure is provided with a milling structure, the milling structure comprises a plurality of cutter teeth which are peripherally and evenly distributed around the axis of the sleeve, one sides, which face to a sleeve rotating direction, of the cutter teeth are provided with cutting edges, the cutting edges are slantwise arranged opposite to the end face of the sleeve, and the bottom ends of the cutting edges are convex towards the sleeve rotating direction; and the cutter teeth are directly machined by the lower end of the expansion structure, a hard material wear layer is arranged on the working faces of the cutter teeth or the cutting edges are provided with hard alloy blocks, or the cutter teeth are wholly formed by the hard alloy and are fixed at the lower end of the expansion structure. The self-tangency broaching anchor bolt uses the milling principle of a milling cutter, so that the cutting edges are matched with the hard alloy or hard material wear layer, therefore, the transverse and lengthways milling performance can be greatly improved when the anchor bolt is expanded.
Description
Technical field
The present invention relates to a kind of reaming crab-bolt of autotomying, be specifically related to a kind of in inflation process automatic counterboring, not only can the milling concrete but can the milling concrete in the expansion anchor of metallic material.
Background technique
When existing back reaming crab-bolt application technology is installed, punch on concrete substrate with drill bit earlier, carry out the bottom reaming with special-purpose counterbore cutter head again, form locked mechanism with the reaming space behind the crab-bolt body head distending, do not produce swelling stress.But in actual reaming, in the concrete of being everlasting, run into reinforcing bar, only to concrete substrate cutting reaming, very poor to the reinforcing bar cutting ability, the concrete that can't accomplish the reinforcing bar position is arranged carries out reaming in the design of counterbore cutter head at present.There are defectives such as complex operation, the location is inaccurate, installation efficiency is low in counterbore cutter head simultaneously.
The reaming crab-bolt of autotomying that has the milling structure, the use of having saved counterbore cutter head have been designed to the problems referred to above.The tube-in-tube structure of this crab-bolt is as shown in Figure 1; Its lower cartridge is provided with expansion structure, and the barrel that expansion structure is cut apart the sleeve lower end by slit 1-4 forms, but and form the cutter tooth of milling simultaneously; Slit 1-4 vertical sleeve end face is provided with; The blade of cutter tooth is positioned at the side towards the sleeve rotation, is actually the side of slit 1-4, in order to improve the milling ability of crab-bolt to metallic material; Be provided with the diamond turning layer on the cutter tooth surface, rely on the hardness of diamond self and the rough surface of milling layer to implement milling; As shown in Figure 2, can also realize the milling function through hard alloy blocks 1-8 is set on cutter tooth, the outstanding cutter tooth of hard alloy blocks 1-8 surface constitutes the milling blade.Cooperate expansion structure on barrel, also to be provided with technology groove 1-3, technology groove 1-3 can discharge the stress that produces when expanding, and helps dilatancy, and this crab-bolt also has the awl mother or the tapering bar of dilating expansion structure, and is also not shown among the figure.
The installation method of this reaming crab-bolt of autotomying is following; Sleeve and awl mother or tapering bar assemble and are placed in the mounting hole, and the sleeve upper end is provided with draw-in groove 1-6, utilizes instrument as shown in Figure 8 to be installed on the percussion drill; Convexity 8 is rotated with the chimeric sleeve that drives of draw-in groove 1-6; Be hit the pressure house that bores towards the precession of mounting hole bottom, and expansion structure is promptly strutted by awl mother or tapering bar, and cutter tooth can milling concrete and reinforcing bar wherein when expansion structure expands; Automatic counterboring is accomplished and is installed, and in inflation process, not only has vertical milling but also have cross milling.
But above-mentioned two kinds of milling structures of the reaming crab-bolt of autotomying; The milling function is still good inadequately; One of reason is that slit 1-4 and sleeve sense of rotation are vertical relation all the time; Cause crab-bolt structure itself less to the incision dynamics of material, with milling cutter passivation or tipping be an effect, in milling process, be difficult to reinforcing bar is applied effective Milling Force; Former two is to expand the later stage in crab-bolt therefore, because the spacing of slit 1-4 becomes big, the milling continuity of each cutter tooth reduces, along with expand to carry out Milling Force more and more littler, the milling process is more and more slower, in fact is difficult to reach firm degrees of expansion is installed; Adopt the crab-bolt of hard alloy blocks, because the gap between the alloy block is bigger, the milling continuity is not high, and is not ideal enough equally to the milling performance of metallic material, and also the phenomenon that alloy block comes off can take place in the milling process.
The tubular type drill bit that also has the water rig that tubular type milling structure is common, its front end also has the milling structure, and concrete form is to constitute through on the chisel edge tube wall, processing the slit; But the tubular type drill bit does not laterally expand when vertically going deep into; Only vertically laterally not milling of milling just, its Milling Force is constant in theory, and this drill bit is also because the reason of self material hardness; Better to concrete brittle material milling performance, but very poor for metallic material milling performance with toughness.
Summary of the invention
Deficiency to above-mentioned existing technology existence; The object of the present invention is to provide a kind of novel reaming crab-bolt of autotomying; This crab-bolt is provided with the tilting blade that is beneficial to milling at the cutter tooth position, cooperate cemented carbide or hard material wearing layer, has increased substantially the milling performance when crab-bolt expands.
In order to achieve the above object, the present invention's reaming crab-bolt of autotomying comprises that the lower end is provided with the sleeve of expansion structure, and the sleeve upper end is provided with the draw-in groove chimeric with setting tool, and the shape of draw-in groove can be rectangle, U type etc.
Said expansion structure comprises by slit cuts apart several expanding plates that sleeve lower end barrel constitutes; The expansion structure lower end is provided with the milling structure; Said milling structure comprises several cutters tooth that circumferentially are uniformly distributed with around sleeve axis, and said cutter tooth is having blade towards sleeve sense of rotation one side, and the relative sleeve end face of said blade is obliquely installed; And the blade bottom forms and is beneficial to the acute angle-shaped of incision material to sleeve sense of rotation protrusion.
Cutter tooth front end and its inner radial surface chamfering transition are in order to match with the awl mother of dilating expansion structure or the conical surface of tapering bar.
Said cutter tooth directly is processed to form by the expansion structure lower end; Cutter tooth and expanding plate one; The cutter tooth working surface is provided with the hard material wearing layer or at its blade position hard alloy blocks is set; Perhaps, the whole cemented carbide that adopts of said cutter tooth constitutes, and through inlaying or being weldingly fixed on the expansion structure lower end.
Further, each said expanding plate lower end is respectively arranged with one or several cutters tooth, when a cutter tooth is set; The tilting blade is positioned at the slit lower end; From seeing the nick shaped that is neat in shape, when a plurality of cutter tooth was set, knife-tooth structure was identical; The tilting blade still is neat nick shaped between adjacent cutter tooth.
Further, said expanding plate outer surface has from the said cutter tooth of front end place the diminishing conical section of external diameter vertically.
Further, the barrel on said cutter tooth top has the radial contraction section with outstanding cutter tooth, cutter tooth outer side surface angulation milling face.
Further, said hard material wearing layer is made up of diamond and/or boron nitride, can also adopt the cemented carbide coating, and wearing layer is arranged on the cutter tooth working surface with the mode of welding or plating; Said cemented carbide block welding or be riveted on the blade position.
The diamond turning layer that this place's wearing layer role is different from the background technique to be mentioned; Be in order to improve the wear-resisting property on cutter tooth surface; So need not painstakingly pursue surface roughness; Can adopt the cemented carbide coating, the tilting blade that cutter tooth itself is provided with plays a major role to the milling process.
Further, said sleeve is provided with the technology groove that discharges the stress that produces when expanding on expansion structure top, and the technology groove place wears seal ring.Seal ring adopts yielding material, rubber for example, and role is to prevent that the chip that produces in the milling process from getting into technology groove, because stone matter chip or metal fragment are to be not easy compressedly, can influence the degrees of expansion of expanding plate.
Further, said crab-bolt also comprises the packing ring that is arranged on the buffering crab-bolt load of sleeve draw-in groove place, and packing ring top is provided with the clamping sleeve of packing washer.When especially the equipment fixed of crab-bolt received long-term vibration, the buffer function that this packing ring rose just can avoid crab-bolt loosening well.
Further, said crab-bolt comprises that also the awl of dilating expansion structure is female, and this awl is female to be connected with the screw rod of setting in the sleeve, and this is bored female lower end surface and is arranged to the tapering face that adapts with mounting hole bottom shape, and the tapering face is provided with anti-skidding line.
Further; The sleeve split of said crab-bolt is arranged to have the sleeve and the expansion sleeve that has expansion structure of internal thread; The expansion sleeve lower end is equipped with the tapering bar of dilating expansion structure; This tapering bar comprises the frustum that one section screw rod that is connected with sleeve and screw rod lower end are provided with, and the tapering face that adapts with mounting hole bottom shape is arranged in the frustum lower end surface, and the tapering face is provided with anti-skidding line.
Further, said expansion sleeve has the internal thread that matches with the tapering bar, and perhaps, its upper end is provided with the draw-in groove chimeric with setting tool, and said sleeve lower end has the convexity that matches with said draw-in groove.
Further; Be provided with internal thread in the sleeve of said crab-bolt; The sleeve lower end is equipped with the tapering bar of dilating expansion structure; This tapering bar comprises the frustum that one section screw rod that is connected with sleeve and screw rod lower end are provided with, and the tapering face that adapts with mounting hole bottom shape is arranged in the frustum lower end surface, and the tapering face is provided with anti-skidding line.
A kind of setting tool that adapts to above-mentioned crab-bolt; Comprise the body of rod that connects crab-bolt; Said body of rod rear end has the clamping handle that is connected with power tool, and the said body of rod is provided with the controlling device that the control body of rod gos deep into the mounting hole degree of depth, and said controlling device comprises the positioning chuck of suit on the body of rod; Said chuck is located by bolton, or locatees through the screw thread that body of rod outer surface is provided with.
Further, the said body of rod is through the convexity of front end setting and the sleeve draw-in groove clamping of said crab-bolt, and the said body of rod can also join through the tapped hole and the said tapering bar of axial setting.
Further, said body of rod outer surface also is provided with the scale of reaction crab-bolt degrees of expansion.In order to prevent that scale from being ground off, can be processed into the structure of convex-concave line at body of rod outer surface.
The present invention's reaming crab-bolt of autotomying; Have the following advantages: this reaming crab-bolt of autotomying is utilized the principle of milling cutter milling, is provided with the tilting blade that is beneficial to milling in a side of original cutter tooth, and the blade bottom forms and is beneficial to the acute angle-shaped of incision material; Cooperate cemented carbide or hard material wearing layer; Horizontal and vertical milling performance when having increased substantially crab-bolt and expanding both can the milling concrete, again can the milling metallic material; Cooperate this crab-bolt also to design corresponding setting tool, this setting tool can accurately be regulated the degrees of expansion of crab-bolt, makes the installation of crab-bolt accurately to carry out according to predetermined design.
Description of drawings
Fig. 1 is the 1st kind of crab-bolt sleeve schematic representation that has the milling structure in the existing technology;
Fig. 2 is the 2nd kind of crab-bolt sleeve schematic representation that has the milling structure in the existing technology;
Fig. 3 is the stereogram of the embodiment of the invention 1;
Fig. 4 is the decomposing schematic representation of the embodiment of the invention 1;
Fig. 5 by the embodiment of the invention 1 the plan view of use sleeve;
Fig. 6 by the embodiment of the invention 2 the plan view of use sleeve;
Fig. 7 by the embodiment of the invention 3 the plan view of use sleeve;
Fig. 8 is the schematic representation of 1 use setting tool of the embodiment of the invention;
Fig. 9 by the embodiment of the invention 4 the plan view of use sleeve;
Figure 10 by the embodiment of the invention 5 the plan view of use sleeve;
Figure 11 by the embodiment of the invention 6 the plan view of use sleeve;
Figure 12 by the embodiment of the invention 7 the plan view of use sleeve;
Figure 13 is the stereogram of the embodiment of the invention 8;
Figure 14 is the decomposing schematic representation of the embodiment of the invention 8;
Figure 15 is the decomposing schematic representation of the embodiment of the invention 9;
Figure 16 is the decomposing schematic representation of the embodiment of the invention 10;
Figure 17 is the schematic representation of 8 use setting tool of the embodiment of the invention;
Figure 18 is the scheme of installation of the embodiment of the invention 8;
Figure 19 is the scheme of installation of the embodiment of the invention 10.
Among the figure: 1. sleeve, 1-1. cutter tooth, 1-2. blade, 1-3. technology groove, 1-4. slit, 1-5. seal groove, 1-6. draw-in groove, 1-7. wearing layer, 1-8. hard alloy blocks, 2. packing ring, 3. clamping sleeve, 4. pad, 5. nut, 6. screw rod, 7. female, 8. convexity, the 9. body of rod, 10. clamping handle, 11. tapering bars, 12. expansion sleeves, 13. bolts, 14. positioning chucks of awl.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to structure of the present invention, characteristic and effect specify as after.
Like Fig. 3, Fig. 4, shown in Figure 5ly designed one of embodiment by the present invention; In this embodiment, the reaming crab-bolt of autotomying comprises that the lower end is provided with the sleeve 1 of expansion structure, and sleeve 1 upper end is provided with the draw-in groove 1-6 chimeric with setting tool; The barrel that expansion structure is cut apart sleeve 1 lower end by slit 1-4 constitutes; Comprise several expanding plates, adopt 6 expanding plates in this embodiment, also can adopt common 4 and the expanding plate of other suitable quantities.The expansion structure lower end is provided with the milling structure, and this milling structure comprises the cutter tooth 1-1 that circumferentially is uniformly distributed with around sleeve 1 axis, and the structure of cutter tooth 1-1 can be with reference to figure 5.
Cutter tooth 1-1 has the blade 1-2 that can carry out milling towards a side of sleeve 1 rotation, and blade 1-2 is positioned at slit 1-4 lower end, and the facade of blade 1-2 is obliquely installed; Be an acute angle angle with sleeve end face; Manufacturing process according to milling cutter in the existing technology can be known, and can be known that by the metal milling process milling performance of acute angle angle is superior than vertical angle; Adopt the blade 1-2 of inclination facade to be segmented on the adjacent cutter tooth, add milling moulding more easily in man-hour at blade like this by slit 1-4.
In this embodiment, the expanding plate lower end is provided with 1 cutter tooth 1-1, and outer surface has from front end cutter tooth 1-1 place the diminishing conical section of external diameter vertically; Cutter tooth 1-1 is included in the level and smooth tapering body that forms after the radial contraction of barrel lower end, and correspondingly the working surface at cutter tooth 1-1 is provided with hard material wearing layer 1-7, outer side surface and the left and right side of working surface enclosed mass cutter tooth 1-1; Wearing layer 1-7 is made up of diamond or boron nitride; Can also adopt the blending material of diamond and boron nitride, mixed proportion such as 50%:50% also can select other suitable ratios according to milling process; So both manufacture cost can be suitably reduced, technological requirement can be reached again; Diamond and boron nitride all have the characteristic of high hardness; Wear-resisting property is outstanding; Often use in technologies such as milling, grinding, grinding, boring and polishing; Wearing layer is arranged on the cutter tooth outer surface with the mode of soldering or plating, and wearing layer 1-7 can also adopt the cemented carbide coating, and the wear-resisting property of cemented carbide is outstanding equally.
Like Fig. 3, shown in Figure 4, the reaming crab-bolt of autotomying also comprises the packing ring 2 that stops up draw-in groove 1-6, and the setting of packing ring 2 is in order to prevent that foreign material from getting into sleeve 1 inside; Packing ring 2 adopts rubber or plastic production, can buffering be provided for the load of crab-bolt simultaneously, when crab-bolt is given a shock with being connected of external member for a long time; Packing ring 2 can play the effect of alleviating vibrations; Weaken the loosening of sleeve bottom expansion structure, make that the connection of this crab-bolt is more fastening, packing ring 2 tops are provided with the clamping sleeve 3 of packing washer 2.For fixing or connection external structure part, also be provided with pad 4 and nut 5 in sleeve 1 upper end.
As shown in Figure 4; The reaming crab-bolt of autotomying comprises that also the awl of dilating expansion structure is female 7, and this awl female 7 is connected with the screw rod 6 of setting in the sleeve 1, and this is bored female 7 lower end surfaces and is arranged to the tapering face that adapts with mounting hole bottom shape; The tapering face is provided with anti-skidding line; Being provided with of anti-skidding line increased awl female 7 and the frictional force that hole wall is installed, and prevents to skid, and helps the expansion of crab-bolt.
As shown in Figure 5, sleeve 1 is provided with the technology groove 1-3 that discharges the stress that produces when expanding on expansion structure top, and technology groove 1-3 place need wear seal ring, gets into the dilatancy that technology groove 1-3 hinders expanding plate to prevent the milling chip.
Also be provided with seal groove 1-5 in technology groove 1-3 top, seal groove 1-5 place wears the seal ring that can seal mounting hole, and this place's seal ring can prevent that the milling chip from running out of mounting hole, can prevent to a certain extent that also exterior materials from getting into the mounting hole bottom.
As shown in Figure 8; It is a kind of setting tool of reaming crab-bolt of autotomying among this embodiment that adapts to; Comprise the clamping body of rod 9 of reaming crab-bolt of autotomying, the body of rod 9 rear ends have the clamping handle 10 that is connected with power tool such as percussion drill, and the body of rod 9 front ends are provided with the convexity 8 with sleeve draw-in groove 1-6 clamping; Also be provided with the hole that holds screw rod 6 in the body of rod 9, hole wall is smooth effect.Percussion drill drove sleeve 1 rotation when crab-bolt was installed; The effect sleeve 1 that is stressed simultaneously is to the precession of mounting hole bottom, but expansion structure is bored female 7 concrete of cross milling when expanding automatic counterborings, when running into pre-buried metal constructions such as reinforcing bar; Can overcome obstruction, in the lump milling.
Shown in Figure 6 is the 2nd kind of mode of execution of the present invention; Compare with embodiment 1; Cutter tooth 1-1 is welded with hard alloy blocks at blade 1-2 position; Cemented carbide has a series of premium properties such as hardness height, wear-resisting, intensity and toughness is better, heat-resisting, corrosion-resistant, is common constituent material in milling tool.If this spot size allows, hard alloy blocks can adopt riveted way to fix.
Shown in Figure 7 is the 3rd kind of mode of execution of the present invention; Compare with embodiment 1, the expanding plate lower end is provided with 2 cutter tooth 1-1, but the identical width of the structure of cutter tooth 1-1 reduces; The density increase of cutter tooth 1-1 can be accelerated the milling frequency of milling mechanism, improves milling speed.
Correspondingly the working surface at cutter tooth 1-1 is provided with hard material milling layer, and hard material milling layer is made up of diamond or boron nitride, also can adopt the cemented carbide coating, and the milling layer is arranged on the cutter tooth working surface with the mode of soldering or plating.
Shown in Figure 9 is the 4th kind of mode of execution of the present invention, compares with embodiment 1, and the barrel radial contraction of expanding plate and cutter tooth 1-1 connecting part is with outstanding cutter tooth 1-1, and the similar angle milling cutter of cutter tooth 1-1 outer side surface is arranged to the angular milling bevel, more helps cross milling.
Correspondingly the working surface at cutter tooth 1-1 is provided with hard material milling layer, and hard material milling layer is made up of diamond or boron nitride, also can adopt the cemented carbide coating, and the milling layer is arranged on the cutter tooth working surface with the mode of soldering or plating.
Shown in Figure 10 is the 5th kind of mode of execution of the present invention; Compare with embodiment 4; The shape and the embodiment 4 of sleeve 1 lower end are similar; But cutter tooth 1-1 integral body is made up of cemented carbide, and cemented carbide has a series of premium properties such as hardness height, wear-resisting, intensity and toughness is better, heat-resisting, corrosion-resistant, is common constituent material in milling tool.The whole cutter tooth 1-1 of cemented carbide that adopts can weld or be riveted on the expansion structure lower end.
Shown in Figure 11 is the 5th kind of mode of execution of the present invention, compares with embodiment 5, and cutter tooth 1-1 welds the hard alloy blocks that is beneficial to the milling metal at blade 1-2 position, if this spot size allows, hard alloy blocks can adopt riveted way to fix.
Shown in Figure 12 is the 7th kind of mode of execution of the present invention; Compare with embodiment 4, the expanding plate lower end is provided with 2 cutter tooth 1-1, but the identical width of the structure of cutter tooth 1-1 reduces; The density increase of cutter tooth 1-1 can be accelerated the milling frequency of milling mechanism, improves milling speed.
Correspondingly the working surface at cutter tooth 1-1 is provided with hard material milling layer, and hard material milling layer is made up of diamond or boron nitride, also can adopt the cemented carbide coating, and the milling layer is arranged on the cutter tooth working surface with the mode of soldering or plating.
Figure 13, shown in Figure 14 be the 8th kind of mode of execution of the present invention; Compare with embodiment 1, the sleeve split of the reaming crab-bolt of autotomying is arranged to have the sleeve and the expansion sleeve 12 that has expansion structure of internal thread, and expansion sleeve 12 lower ends are equipped with the tapering bar 11 of dilating expansion structure; These tapering bar 11 lower ends are provided with frustum; Frustum top has one section screw rod that is connected with sleeve, and the tapering face that adapts with mounting hole bottom shape is arranged in the frustum lower end surface, and the tapering face is provided with anti-skidding line.
Shown in figure 17 is a kind of setting tool of reaming crab-bolt of autotomying among this embodiment that adapts to; Comprise and connect the body of rod 9 of reaming crab-bolt of autotomying; The body of rod 9 rear ends have the clamping handle 10 that is connected with power tool such as percussion drill; The body of rod 9 front ends axially are provided with the deep hole of internal thread, and the body of rod 9 outer surfaces are provided with the controlling device that the control body of rod gos deep into the mounting hole degree of depth.
Controlling device comprises the positioning chuck 14 of suit on the body of rod 9, and positioning chuck 14 is by bolt 13 fastening location, or the screw thread location that is provided with through the body of rod 9 outer surfaces, and the body of rod 9 outer surfaces also are provided with the scale of reaction crab-bolt degrees of expansion.
Shown in Figure 180 is installation process, at first with putting in the pre-drilled mounting hole after expansion sleeve 12,11 assemblings of tapering bar, uses setting tool shown in figure 17; Rely on the tapped hole in the body of rod 9 to be connected with tapering bar 11 to lock expansion sleeve 12 and to drive expansion sleeve 12 rotations, can transfer to common rig gear this moment with percussion drill, do not have impact function; Or directly adopting common rig, the screw thread on dependence tapering bar 11 bodies of rod and the snap-in force of setting tool can force expansion sleeve 12 to the precession of mounting hole bottom, through regulating the upper-lower position of positioning chuck 14 on the body of rod 9; Can control the degree of depth that setting tool gets into mounting hole; Thereby the degrees of expansion of control expansion structure, but cross milling concrete when expansion structure is expanded by frustum are when running into pre-buried metal constructions such as reinforcing bar; Can overcome obstruction, in the lump milling.Installing sleeve, packing ring 2, pad 4 and bolt 13 again after expand accomplishing.
Because setting tool need be through the screw thread precession on the tapering bar 11, thus the precession of sleeve at the uniform velocity carrying out, the inflation process of expanding plate uses percussion drill more steady, the structure steadiness after the expansion is better than percussion drill and installs.
Shown in Figure 15 is the 9th kind of mode of execution of the present invention, compares with embodiment 8, and expansion sleeve 12 upper ends have the draw-in groove chimeric with setting tool, and the sleeve lower end has the convexity that matches with this draw-in groove.Adopt this expansion of structure cover 12, can use setting tool shown in figure 17, also can use setting tool as shown in Figure 8.Expansion sleeve 12 can also be provided with the internal thread that matches with tapering bar 11; Also not shown among Figure 15; Adopt internal thread can make expansion sleeve 12 precessions at the uniform velocity carrying out, the inflation process of expanding plate uses percussion drill more steady, and the structure steadiness after the expansion is better than percussion drill and installs.
Shown in Figure 16 is the 10th kind of mode of execution of the present invention; Compare with embodiment 8, the sleeve of the reaming crab-bolt of autotomying is for integral body and be provided with internal thread, and the sleeve lower end is equipped with the tapering bar 11 of dilating expansion structure; These tapering bar 11 lower ends are provided with frustum; Frustum top has one section screw rod that is connected with sleeve, and the tapering face that adapts with mounting hole bottom shape is arranged in the frustum lower end surface, and the tapering face is provided with anti-skidding line.
The installation process of this crab-bolt is shown in figure 19, and employed setting tool front end is provided with the convexity 8 with sleeve draw-in groove 1-6 clamping.At first with putting in the pre-drilled mounting hole after sleeve, 11 assemblings of tapering bar; Use setting tool clamping sleeve upper end shown in figure 19, percussion drill drives the sleeve rotation, and the effect sleeve that is stressed simultaneously is to the precession of mounting hole bottom; The degree of depth that positioning chuck 14 can controlling tool gets into mounting hole; Thereby the degrees of expansion of control expansion structure, but cross milling concrete when expansion structure is expanded by frustum are when running into pre-buried metal constructions such as reinforcing bar; Can overcome obstruction, in the lump milling.Expansion is installed packing ring 2, pad 4 and bolt 13 after accomplishing again.
Above saidly be construed as the present invention and be not limited to above embodiment just for the present invention is described, the various variation that meet inventive concept are all within protection scope of the present invention.
Claims (10)
1. the reaming crab-bolt of autotomying comprises that the lower end is provided with the sleeve of expansion structure, and the sleeve upper end is provided with the draw-in groove chimeric with setting tool; Said expansion structure comprises by slit cuts apart several expanding plates that sleeve lower end barrel constitutes; The expansion structure lower end is provided with the milling structure, it is characterized in that, said milling structure comprises several cutters tooth that circumferentially are uniformly distributed with around sleeve axis; Said cutter tooth is having blade towards sleeve sense of rotation one side; The relative sleeve end face of said blade is obliquely installed, and the blade bottom is to sleeve sense of rotation protrusion, cutter tooth front end and its inner radial surface chamfering transition; Said cutter tooth directly is processed to form by the expansion structure lower end; The cutter tooth working surface is provided with the hard material wearing layer or at its blade position hard alloy blocks is set; Perhaps, the whole cemented carbide that adopts of said cutter tooth constitutes, and through inlaying or being weldingly fixed on the expansion structure lower end.
2. crab-bolt as claimed in claim 1 is characterized in that, each said expanding plate lower end is respectively arranged with one or several cutters tooth.
3. crab-bolt as claimed in claim 1 is characterized in that, said expanding plate outer surface has from the said cutter tooth of front end place the diminishing conical section of external diameter vertically.
4. crab-bolt as claimed in claim 1 is characterized in that, the barrel on said cutter tooth top has the radial contraction section with outstanding cutter tooth, cutter tooth outer side surface angulation milling face.
5. crab-bolt as claimed in claim 1 is characterized in that, said hard material wearing layer is made up of diamond and/or boron nitride, can also adopt the cemented carbide coating, and wearing layer is arranged on the cutter tooth working surface with the mode of welding or plating; Said cemented carbide block welding or be riveted on the blade position.
6. crab-bolt as claimed in claim 1; It is characterized in that; The sleeve split of said crab-bolt is arranged to have the sleeve and the expansion sleeve that has expansion structure of internal thread, and the expansion sleeve lower end is equipped with the tapering bar of dilating expansion structure, and this tapering bar comprises the frustum that one section screw rod that is connected with sleeve and screw rod lower end are provided with; The tapering face that adapts with mounting hole bottom shape is arranged in the frustum lower end surface, and the tapering face is provided with anti-skidding line.
7. crab-bolt as claimed in claim 1; It is characterized in that; Be provided with internal thread in the sleeve of said crab-bolt, the sleeve lower end is equipped with the tapering bar of dilating expansion structure, and this tapering bar comprises the frustum that one section screw rod that is connected with sleeve and screw rod lower end are provided with; The tapering face that adapts with mounting hole bottom shape is arranged in the frustum lower end surface, and the tapering face is provided with anti-skidding line.
8. one kind adapts to the setting tool of weighing 1 said crab-bolt; Comprise the body of rod that connects crab-bolt, body of rod rear end has the clamping handle that is connected with power tool, it is characterized in that; The said body of rod is provided with the controlling device that the control body of rod gos deep into the mounting hole degree of depth; Said controlling device comprises the positioning chuck of suit on the body of rod, and said chuck is located by bolton, or locatees through the screw thread that body of rod outer surface is provided with.
9. setting tool as claimed in claim 8 is characterized in that, the said body of rod is through the convexity of front end setting and the sleeve draw-in groove clamping of said crab-bolt, and the said body of rod can also join through the tapped hole and the said tapering bar of axial setting.
10. setting tool as claimed in claim 8 is characterized in that, said body of rod outer surface also is provided with the scale of reaction crab-bolt degrees of expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101124981A CN102635616A (en) | 2012-04-17 | 2012-04-17 | Self-tangency broaching anchor bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101124981A CN102635616A (en) | 2012-04-17 | 2012-04-17 | Self-tangency broaching anchor bolt |
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| CN102635616A true CN102635616A (en) | 2012-08-15 |
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| CN2012101124981A Pending CN102635616A (en) | 2012-04-17 | 2012-04-17 | Self-tangency broaching anchor bolt |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410261A (en) * | 2013-08-01 | 2013-11-27 | 斯泰科技（杭州）有限公司 | High-safety undercutting anchor bolt and connecting structure of building appurtenance |
| WO2015131289A1 (en) * | 2014-03-07 | 2015-09-11 | Robert Cousineau | Expansion anchor |
| US20160195122A1 (en) * | 2013-07-30 | 2016-07-07 | Mario Gualco | Process for installation of anchor devices and apparatus for carrying out such process |
| TWI635206B (en) * | 2017-01-25 | 2018-09-11 | 世鎧精密股份有限公司 | Thread type planting device and manufacturing method thereof |
| WO2019218090A1 (en) * | 2018-05-18 | 2019-11-21 | Robert Cousineau | Self-undercut expansion anchor system with improved cutters |
| CN111594519A (en) * | 2019-09-10 | 2020-08-28 | 李宝彦 | Dismantle convenient novel expansion bolts |
| CN113874171A (en) * | 2019-04-15 | 2021-12-31 | 因温特奥股份公司 | Installation tool and method for hammering a rock bolt into a borehole |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160195122A1 (en) * | 2013-07-30 | 2016-07-07 | Mario Gualco | Process for installation of anchor devices and apparatus for carrying out such process |
| US10253799B2 (en) * | 2013-07-30 | 2019-04-09 | Mario Gualco | Process for installation of anchor devices and apparatus for carrying out such process |
| CN103410261A (en) * | 2013-08-01 | 2013-11-27 | 斯泰科技（杭州）有限公司 | High-safety undercutting anchor bolt and connecting structure of building appurtenance |
| CN103410261B (en) * | 2013-08-01 | 2016-02-03 | 斯泰科技（杭州）有限公司 | A kind of high safety is cut end riveting bolt and builds appendicular syndeton |
| WO2015131289A1 (en) * | 2014-03-07 | 2015-09-11 | Robert Cousineau | Expansion anchor |
| TWI635206B (en) * | 2017-01-25 | 2018-09-11 | 世鎧精密股份有限公司 | Thread type planting device and manufacturing method thereof |
| WO2019218090A1 (en) * | 2018-05-18 | 2019-11-21 | Robert Cousineau | Self-undercut expansion anchor system with improved cutters |
| CN113874171A (en) * | 2019-04-15 | 2021-12-31 | 因温特奥股份公司 | Installation tool and method for hammering a rock bolt into a borehole |
| CN111594519A (en) * | 2019-09-10 | 2020-08-28 | 李宝彦 | Dismantle convenient novel expansion bolts |
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Application publication date: 20120815 |