CN101571050A - Pulling assembly - Google Patents
Pulling assembly Download PDFInfo
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- CN101571050A CN101571050A CNA2009101419365A CN200910141936A CN101571050A CN 101571050 A CN101571050 A CN 101571050A CN A2009101419365 A CNA2009101419365 A CN A2009101419365A CN 200910141936 A CN200910141936 A CN 200910141936A CN 101571050 A CN101571050 A CN 101571050A
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- anchor cable
- assembly
- external component
- clamping device
- handling article
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Abstract
A pulling assembly for cable bolt comprises a clamping device suitable for fixing onto the cable bolt and an outer member suitable for engagement with the clamping device. The outer member can move along the axial direction of the cable bolt with respect to the clamping device, and the clamping device can be fixed onto the cable bolt through the movement. The outer member can interact with the cable bolt, and distortion to the cable bolt is limited in such relative movement.
Description
Technical field
The invention discloses a kind of pulling assembly, it is suitable for using the anchor cable (cable bolts) that rock and sidewall supporting are provided in mine and tunnel.Pulling assembly is suitable for using in hard rock, equally also is suitable for using in soft formation, for example the soft formation that occurs in the colliery of being everlasting.Therefore, has the wide intension that contains all these application at the term described in the manual " rock ".
Background technology
In mining and tunneling process, top board and sidewall supporting are vital.Mine and tunnel-side and top board are made of lithosphere, and it must be reinforced to reduce the possibility of landslide.The rock anchor cable, for example stiff shaft rock anchor cable and flexible anchor cable all are widely used in reinforcing lithosphere.
In the rock strata support system, hole in rock by drilling rod, remove drilling rod then and the rock anchor cable is installed in the boring and mechanically or resin or cement injection mode be fixed in position.The rock anchor cable is tightened up to reinforce contiguous lithosphere by the mode of compression lithosphere.
For the rock anchor cable can be tightened up, the insertion end of anchor cable can be fixed on the rock stratum by mechanical ground anchor by the expansion assembly of engaged at end that is arranged in the rock stratum at anchor cable.Alternatively, anchor cable can be bonded on the rock stratum by the resin-bonded material that is circulated in the boring.Alternatively, can realize mechanical anchor and resin bonded associating by using expansion assembly and resin-bonded material simultaneously.
When using resin-bonded material, it stably remains in the boring with the bonding lithosphere and with anchor cable around infiltrating the rock stratum.Resin normally inserts in the boring with the plastic casing form of two kinds of components, and a kind of component contains the curable resin composition, and another kind of component contains curing compound (catalyzer).Two kinds of component resin boxes are inserted into the cecum of boring, and rock anchor cable in mine is inserted in the boring more then, and the end of mine rock anchor cable just makes two component resin boxes break like this.Along with the rotation of mine rock anchor cable around its longitudinal axis, the composition in the resin box is rubbed and is mixed.Annular region between resin compound filling borehole wall and the mine rock anchor cable axle.Mixed resin solidification also is bonded in mine rock anchor cable in rock around it.
Pulling assembly is used to strain along anchor cable, and for example the base portion around the anchor cable of grappling is exerted pressure successively, and described base portion normally mine props up the abacus base portion.Such pulling assembly generally includes and is used for the hydraulic component implementing to install, and needs setter that hydraulic component is recommended height more than the chest to place it on the anchor cable end that is exposed to outside the boring.This may cause some safety problems, depends on that the mine props up the abacus height.
In a kind of such pulling assembly, around the anchor cable part of resin solidification in boring the time, a nut is screwed on the screw thread, and this screw thread is cut into the part of the outer wire that is arranged on the outside anchor cable of boring.Then, nut on the anchor cable towards the direction rotation of boring base portion and be contiguous on the base portion, it nestles up or passes the loaded plate on the pillar between base portion and the nut.Nut continues to rotate to pre-fixing turn provides tension along anchor cable.In actual applications, this method is found to be insecure, also may break down between nut and anchor cable simultaneously.
In another kind of pulling assembly, use an aerial lug that threaded rod is connected on the end of anchor cable.This connector is positioned at the hole threaded rod and then protrudes outside the hole.Then, a flat board is set on threaded rod, a nut thread is connected on the threaded rod with fixing described flat board.Nut rotates on threaded rod, dull and stereotyped so just being pressed on the base portion of boring.The part that this pulling assembly need be holed promptly near the part of boring opening, is broadened to hold aerial lug.This is disadvantageous, because need two kinds of boring actions in this case when forming boring.Alternatively, hold above-mentioned accessory if the hole of being bored has enough big diameter, then will produce bigger space between drill hole wall and anchor cable, this just needs more resin anchor cable could be fixed in the boring.This has shown the adhesion strength that can reduce between anchor cable, resin and the drill hole wall.
In another kind of assembly, clamping device is installed in the end of the outside anchor cable of boring.Then, the outer sleeve mulched ground is bonded on the clamping device, and this sleeve can axially move with respect to anchor cable along clamping device by this.This moving can impel the flat board that is arranged on the threaded rod to be pressed on the boring base portion on every side by outer sleeve.
Yet this known pulling assembly can not prevent the distortion of anchor cable in the tension process.After after a while, anchor cable can twist recovery and the tension effect is died down.
Quoting and not meaning that and admit that formerly technology is the ingredient of Australia or other local those skilled in the art's common technology means technology formerly herein.
Summary of the invention
According to first aspect, a kind of pulling assembly that is used for anchor cable is provided, described pulling assembly comprises:
-be suitable for being fixed to the clamping device of anchor cable;
-be suitable for and the interactional external component of clamping device, do away from external component in the process of relative motion at the axial direction of anchor cable at clamping device by this, clamping device is ordered about to be fastened to anchor cable, external component also is suitable for interacting with anchor cable simultaneously, in the process of above-mentioned relative motion, anchor cable is suppressed with respect to the distortion of external component by this.
When clamping device is ordered about when being anchored on anchor cable, it can make assembly that tension is applied thereto.When the rotation of external component is suppressed or stops, this tension action can be minimum with respect to the distortion of lithosphere at anchor cable or situation about not having under take place.Therefore, anchor cable can better keep tension as time goes by, thereby safer lithosphere supporting is provided as time goes by.In addition, opposite with previous pulling assembly, anchor cable tension can be carried out under the situation of anchor cable rotation not causing or need.
In one form, the inner surface portion of external component is suitable for cooperating all burst of distortion with the inhibition anchor cable of anchor cable.For example, inner surface portion (for example can comprise one or more elongated protrusion of inwardly stretching out, elongated tooth or protuberance), each projection location also is shaped into and protrudes into the respective grooves that forms between the adjacent anchor cable thigh, so that more effectively fastening and prevent the distortion of anchor cable rope rope.
In one form, external component can have the profile of tubbiness, and the adequate closure of one end has also kept the passage that is used for anchor cable at this end.Inner surface portion can be set at the inside of hollow plug, and hollow plug is sentenced around described passage at the recess that carries out being positioned at when fastening external component one end.In one form, before placing external component, plug can be fixed to position suitable on the anchor cable easily/easily.Form projection on the inner surface with respect to parts externally, use this plug also can allow described one or more elongated protrusion easier/be formed on easily on the inner surface of plug.Furtherly, if pulling assembly is re-used, this plug can be dropped and replace.
The lithosphere of anchoring anchor cable interacted when external component can be further adapted for and use, and this results of interaction is that the rotation of external component is suppressed, thereby the tension of anchor cable can be less or do not have to take place under the situation of distortion/rotation.Simultaneously an end of external component can be suitable for directly in abutting connection with lithosphere, and pulling assembly may further include plate-shaped member (for example carried/supported plate), and in use plate-shaped member presses towards lithosphere and to lithosphere.Plate-shaped member can be located (for example sliding along anchor cable by hole wherein via one) with respect to anchor cable, like this in anchor cable tension process, an end of external component in use can with plate-shaped member in abutting connection with so that it is pressed to lithosphere.This adjacency can provide enough frictional force to suppress the rotation of external component.Simultaneously, the lithosphere that plate-shaped member can keep and supporting is contiguous.In another form, externally have key shape projection and slit setting between parts and the plate-shaped member to suppress the rotation of external component.
In one form, assembly may further include handling article, and handling article comprises that receiving anchor cable makes its hollow shank of therefrom passing, and shank is provided with external screw thread and is used for and the corresponding internal thread engagement that is arranged on external component inner surface place.In this case, external component will may be due to not the handling article that screws with external component away from the relative motion of clamping device.
In one form, clamping device can comprise synergistic bucket and wedge-like assembly, to realize the clamping of assembly to anchor cable.In this, bucket can be set in the recess of the cavity that extends into shank in the handling article and rotate, after assembly is to the anchor cable clamping, handling article still relatively clamping device rotate freely.In order in the process that anchor cable is implemented to stretch, to make handling article, anti-friction washers or thrust bearing can be set between bucket and shoulder with respect to bucket and the easier rotation of wedge-like assembly.
This wedge can be set in the bucket, like this in the relative motion process (for example when the relative external component of handling article does not screw) bucket just in recess round wedge, bucket presses against wedge so that they are pressed against anchor cable, thereby fastening clamp device (and assembly) is to anchor cable.
In an embodiment of this form, bucket can comprise the inner surface of taper, and each wedge can comprise the external surface of correspondence and reversed dip.In the process of relative motion, the cone-shaped inner surface of bucket can press against the external surface of the reversed dip of each wedge.This presses and can trigger by the action of shoulder on wedge, and described shoulder is positioned at the inner end place of handling article recess.
Equally, in the relative motion process (for example, when the relative external component of handling article does not screw), handling article can have an end place that is formed on the handling article shank and the head that extends beyond external component when using assembly.Such head is shaped as and is suitable for being set to cooperating with driven tool (for example being connected to the fitter spanner of rig driver), so that handling article moves (for example unscrewing) away from external component.For example, head can be provided with hexagonal profile.
According to second aspect, a kind of pulling assembly that is used for anchor cable is provided, this assembly comprises:
-be suitable for being fixed to the clamping device of anchor cable;
The handling article that-clamping device is used; And
-be suitable for being placed on the external component on the handling article, an end of handling article protrudes and crosses external component thus, an end that protrudes be suitable for cooperating driven tool with cause handling article along anchor cable axially away from the relative motion of external component, described relative motion is ordered about clamping device and is fastened to anchor cable.
This assembly can be by handling article to realizing the anchor cable tension.For example, when clamping device was rotatable in handling article, this assembly just can not need or cause tension and the clamping that realizes anchor cable under the situation of anchor cable distortion or rotation.
In addition, in the assembly of second aspect, external component can be further adapted for anchor cable and interact, and in described relative motion, suppresses the distortion of anchor cable with respect to external component thus.
In this, external component can have the structure the same with first aspect.In addition, handling article can have the structure the same with first aspect equally with clamping device.
According to the third aspect, a kind of method that is used to strain the rock stratum stream line is provided, described method comprises:
Grappling anchor cable in-the boring in being formed on the rock stratum;
-anchor cable extend boring outside part on place pulling assembly;
-use pulling assembly to suppress the distortion of anchor cable simultaneously at the tension anchor cable.
Can better keep tension as time goes by after using this method to make the anchor cable tension, therefore safer lithosphere supporting is provided as time goes by.
In the method for the third aspect, part or all of pulling assembly is navigated to step on the anchor cable can occur in before the step of anchorage cable anchoring in the boring.
In the method for the third aspect, in the step that suppresses the anchor cable distortion, can suppress distortion with respect to lithosphere.
In the method for the third aspect, the anchoring step can be included in and insert fixative container in the boring, inserts anchor cable then so that anchor cable breaks container in boring, the curing compound material is discharged in the boring from container center in the space of anchor cable.The anchoring step may further include and makes curing compound solidify before the tension anchor cable.
The method of the described third aspect can be used as the described pulling assembly in first and second aspects.
Description of drawings
Though any other composition form also may fall into the scope as described pulling assembly of summary of the invention and method, as just illustrating, the specific implementations of a plurality of pulling assemblies is described below in conjunction with accompanying drawing correspondingly, wherein:
Accompanying drawing 1A shows view (along A-A line among the accompanying drawing 1B) under vertical view, part sectional side view and the broken section according to the described anchor cable pulling assembly of first embodiment respectively to 1C;
The part sectional side view that accompanying drawing 2 shows according to the described anchor cable pulling assembly of second embodiment;
Accompanying drawing 3 shows the part sectional side view that the anchor cable of anchor cable pulling assembly shown in the accompanying drawings 2 when first does not strain configuration status uses;
The part sectional side view that anchor cable when accompanying drawing 4 shows anchor cable pulling assembly shown in the accompanying drawing 2 with the second tension configuration status uses;
Accompanying drawing 5A to C shows according to the phantom drawing from bottom to top of the described anchor cable pulling assembly of an embodiment of the invention loaded plate, from bottom to top view and lateral view;
Accompanying drawing 6A, B and C show according to the phantom drawing from bottom to top of the outside frame of the described anchor cable pulling assembly of an embodiment of the invention, view and lateral view from bottom to top;
Accompanying drawing 7A and B have shown the running of the loaded plate shown in outside frame shown in the accompanying drawing 6 and the accompanying drawing 5;
Accompanying drawing 8A, B and C show from bottom to top phantom drawing, from bottom to top view and the lateral view of described according to another implementation of the invention anchor cable pulling assembly with loaded plate;
Accompanying drawing 9A, B and C show phantom drawing from bottom to top, view from bottom to top and the lateral view of the outside frame of described according to another implementation of the invention anchor cable pulling assembly;
Accompanying drawing 10A and B have shown the running of the loaded plate shown in outside frame shown in the accompanying drawing 9 and the accompanying drawing 8;
Accompanying drawing 11A and B show the view from the top down and the lateral view of the outside frame of described according to another implementation of the invention anchor cable pulling assembly;
Accompanying drawing 12A and B show the lateral view and the lateral view view from bottom to top of the loaded plate that uses with the outside frame shown in accompanying drawing 11A and the B;
Accompanying drawing 13A and B show the view from the top down and the lateral view of the outside frame of described according to another implementation of the invention anchor cable pulling assembly;
Accompanying drawing 14A and B show the lateral view of the loaded plate that uses with the outside frame shown in accompanying drawing 13A and the B and view from bottom to top.
The specific embodiment
With reference to accompanying drawing, shown pulling assembly 10 is used from supporting pitshaft sidewall and/or top board or the like with anchor cable 11 (accompanying drawing 3 and 4).This pulling assembly 10 is configured to use with anchor cable, and described anchor cable generally includes many guy wire thighs 12, and these guy wire thighs 12 are intertwined and form the anchor cable that certain suppleness is arranged, but use according to it, and anchor cable also can be made by other suitable material.For example, anchor cable can be made by metal or polymeric material hard or sclerosis.Anchor cable typically has a diameter from 15-28mm, but the anchor cable diameter that uses also can change according to the material of forming anchor cable or the rock stratum type that anchor cable is placed the position.According to using and user's needs, the length of anchor cable generally at about 4m in the scope of 10m.
" round end (bull-nosed) " of the full circle of outside frame 18, band tapering (being conical butt alternatively) end 28 has the passage 30 that passes through for anchor cable.Hollow plug 32 can be positioned to be used in the fastening recess that is formed on end 28 with around passage 30 (for example passing through weld seam 34 when fastening generations).Plug 32 comprises a plurality of inwardly outstanding elongated protrusion with protuberance 36 forms, and they extend into all grooves (accompanying drawing 3 and 4) between the adjacent strands 12 that is formed on anchor cable 11 with being suitable for hindering.In this, protuberance 36 can " be stung " external surface of going into anchor cable.This arrangement has locked the distortion/rotation of anchor cable with respect to outside frame 18.
Before locating outside frame thereon, (for example, by its slip being crimped onto it then the certain position on the anchor cable) on the anchor cable can in position be located fast/be easily fixed to plug.Alternatively, plug and outside frame can be fixed to the appropriate location on the anchor cable together by putting in place along anchor cable pressure slip.In the form shown in attached Fig. 1 and 2, plug 32 is formed into outside frame independently.In an optional form, outside frame can be processed to comprise the projection of inner orientation, extends in the passage needing to avoid separate plug 32.
Shown in accompanying drawing 3 and 4, pulling assembly 10 can also comprise loaded plate 40, is used for being positioned at slidably anchor cable 11.In use, plate 40 can remain on the full circle end 28 of outside frame 18 and have between the bottom of pitshaft top board R form.Plate 40 is configured to go up around the surperficial S of boring B in abutting connection with top board R, and the part of anchor cable 11 has been inserted into also grappling within it.In this, when assembly was used to strain anchor cable, plate 40 was provided with the full circle end 28 that umbo 42 is used for receiving outside frame 18.In use, anchor cable extends through the hole that is formed by umbo, and this model slides and enters into the position of abutment surface S along the anchor cable of grappling.In a kind of version, plate can be integrally formed with outside frame, and perhaps outside stander end 28 is provided with and can be shaped as similar tabular supporting body.
As described below, in the tension process of anchor cable, full circle end 28 and umbo 42 interact, thereby have stoped the rotation of outside frame 18 around its longitudinal axis.These, just suppress or have stoped at anchor cable to strain the hole distortion of B/rotate of process stream line in pitshaft top board R with respect to distortion/rotations of outside frame 18 together with the plug 32 of locking anchor cable effectively.The interaction of full circle end 28 and umbo 42 has promoted the axial location of plate 40 and outside frame 18 equally, has avoided the generation of lateral shear power between anchor cable 11 and the pulling assembly 10 with this.
The structure of pulling assembly 10 allows before anchor cable 11 grapplings go into to hole B or afterwards assembly 10 is placed on the anchor cable 11.
If assembly 10 will be pre-assembled on the anchor cable, each parts can be placed on the anchor cable and bucket 14 and wedge 16a, 16b and 16c will be by pretension so that it clamp anchor cable.Then, outside frame and internal rack can cover by the bucket and the wedge of pretension, and are held in place in order to transport by plastic foil or variable polymer or olibanum resin shell (masticwrap) or by using as machanical fastener such as strapping or countersunk head screw or combination by the way.
Alternatively, assembly 10 can slide into the end of anchor cable after anchor cable installs.In case put in place, the relative motion that bucket 14 and wedge 16a-16c can be ordered about by between induction bucket and the wedge clamps anchor cable.
In case anchor cable 11 is anchored among the boring B on the pit shaft top board R by point and pulling assembly 10 is positioned at appropriate location on the anchor cable 11, assembly just is ready to tension, as shown in Figure 3.
Rig is moved to the position near assembly 10, and the fitter spanner that is loaded into chuck of rig joins hexagon driving head 23 to.Rig is driven operation, and the moment of torsion that is generally 100-400Nm is applied to hexagon driving head 23, so that internal rack 19 begins externally frame 18 interior rotations and loosens down from outside frame 18.
The initial rotation of internal rack 19 (unscrewing) makes it along axially the moving away from outside frame 18 (that is, downward direction in the accompanying drawing 3) of anchor cable, so shoulder 25 drives bucket 14 and applies pressure to wedge 16a-c (alternatively by packing ring 44 or thrust bearing 26).Wedge is the tight anchor cable 11 of clamping and assembly is fastened to anchor cable further then.
In internal rack 19 whole rotary courses, internal rack is all the time around bucket 14 rotations.In the embodiment of assembly shown in the accompanying drawing 1, shoulder 25 is directly in abutting connection with packing ring 44 and therefore the continuous frictional resistance that must be overcome by the rig driver arranged.In the embodiment of assembly shown in the accompanying drawing 2, thrust bearing 26 is between shoulder 25 and bucket 14, and this thus frictional resistance significantly reduces.
Along with present wedge clamps anchor cable, internal rack 19 continuous rotations (unscrewing) force outside frame 18 against living plate 40 (that is, in the accompanying drawing 4 upward to).Because plate is in abutting connection with top board surface S, it can only move very limited distance (if having a bit), and therefore the internal rack 19 that moves down has caused the tensile force in the anchor cable 11.The continuous rotation (unscrewing) of internal rack little by little increases this tensile force.This just provides the compressive force to the lithosphere S around the pitshaft top board R boring B.
In addition, along with the continuous rotation of internal rack 19, the full circle end 28 of outside frame 18 is driven into projection 42 with the high friction cooperation, thereby stops the rotation of outside frame 18.Further, because full circle end 28 is secured to anchor cable preventing the distortion of anchor cable with respect to outside frame by plug 32, anchor cable thereby just be prevented from distortion with respect to the lithosphere S that is positioned at boring B place.This just mean the tensile force that causes in the anchor cable 11 will remain on wherein as time goes by always (that is, anchor cable not as time goes by back twist to discharge tensioning wherein).
In case the tensile force in the anchor cable has reached the level (depending on the rig CD-ROM drive motor usually, its stall the most at last) that needs, rig will be removed from hexagon driving head 23, and anchor cable 11 and pulling assembly 10 are stayed appropriate location on the pitshaft top board R.Be understandable that, use a plurality of anchor cables 11 and connected pulling assembly 10 diverse location on can small mine pit shaft top board to realize identical process.
As accompanying drawing 3 and 4 clearly shown in, pulling assembly 10 is positioned on the anchor cable 11 in the boring B outside, after tension, still in the outside of boring B.This only can hold anchor cable 11 with regard to the size that means the B that holes and need not enlarge its total length or partial-length to hold any part of assembly.Therefore, the boring moulding of can once holing, and be issued to the anchoring effect of reinforcing anchor cable in the situation with resin less.
It should be noted that the screw thread between internal rack and the outside frame can be made into left-handed or dextrorotation, to adapt to the preferred direction of rotation of internal rack (for example depending on driving, application, user's needs etc.).
In the embodiment of foregoing description, the projection 42 of outside frame 18 by CONTACT WITH FRICTION loaded plate 40 (its be pressed rock layer surface S go up preventing move) is in case spline is moving.Accompanying drawing 5 to 14 has been described the further embodiment of the present invention, has shown that outside frame 18 and loaded plate 40 interactions are beneficial to the multitude of different ways that prevents that outside frame 18 from rotating.
In the embodiment that accompanying drawing 5 to 7 is described, outside frame 18a is provided with key shape projection 100, and the respective slots 101 that this key shape projection is configured among the projection 42a with loaded plate 40a interacts.
In operating process, key shape projection 100 fits in the slit 101, just and prevent relatively rotating between loaded plate 40a and the outside frame 18a.
In described embodiment, key shape projection 100 extends on the main body of frame 18a from the top of " round end " end 28.This just makes key shape projection 100 still can mesh with slit 101 when the umbo 42a of the relative loaded plate 48 of frame 18a tilts an angle, allows the relative loaded plate 40a of axis of anchor cable to tilt, and this in use might take place.
Accompanying drawing 7A and B have described in operating process outside frame 18a and how to have interacted with loaded plate 40a, and key shape projection 100 is fitted in the slit 101.
Note, in the accompanying drawings, only demonstrated the rounded ends 28a of outside frame 18a.Other parts with dashed lines 110 expressions of outside frame in accompanying drawing 6C.
Accompanying drawing 8 to 10 has shown an optional embodiment, and wherein slit 120 is arranged among the rounded ends 28b of outside frame 18b and complementary key shape projection 121 is installed among the projection 42b of loaded plate 40b.Among the accompanying drawing 8-10 among the operating process of embodiment and the accompanying drawing 5-7 operating process of embodiment similar, except key shape projection 121 is arranged among the loaded plate 40b and slit 120 is arranged among the outside frame 18b.
Accompanying drawing 11 and 12 has been described another kind of mode, and wherein outside frame can cooperate with loaded plate.In this embodiment, the rounded ends 28c of outside frame 18c is provided with a plurality of key surfaces 150.This key surface 150 has the edge 151 that defines border between each key surface 150.Be arranged in the admittance projection 42c of loaded plate 40c with the admittance key surface 152 of edge 153 complementations.
In operating process, the key surface 150 of outside frame 18c and 152 engagements of the complementary key surface of projection 42c prevent relatively rotating between outside frame 18c and the loaded plate 40c.
Attached Figure 13 and 14 has shown another kind of embodiment, and it has utilized key surface 160 and edge 161 on the outside frame 18d.These key surfaces 160 in operation and the key surface in the accompanying drawing 11 similar, but negligible amounts.Complementary key surface is arranged on the projection 42c of loaded plate 40c.They comprise complementary surface 163 and edge 164.
The same with above-mentioned embodiment, can also there be other arrangement to be beneficial to the rounded ends 28 of outside frame and cooperating of loaded plate, so outside frame will can not rotated and anchor cable can not twist yet.For example, shown the arrangement that only has only a key shape projection in the slit in the embodiment of accompanying drawing 5 to 10.Also can be in the slit of the relative both sides of circular face/loaded plate projection, to have two or more than the arrangement of two wedge-shaped projection.
Rounded ends 28 that arrangement causes and the interference between the loaded plate 40 even can be used in the anchor cable pulling assembly different with accompanying drawing 1 to 4 embodiment.In fact, any need have interactional anchor cable pulling assembly can use any arrangement here between the rounded ends of strain component and loaded plate.
Described though be used for the pulling assembly and the method thereof of anchor cable tension, be understandable that, under the situation of not leaving aim of the present invention, can be made a change the present invention by the specific embodiment.
In addition, be understandable that pulling assembly and using method thereof are not limited in mining and use.Equally, pulling assembly and using method thereof are at top board in description, are understandable that it can be applied to sidewall or base portion/base plate equally.
In claim and description formerly thereafter, except contextual needs, in clear and definite language and necessary hint, word " comprises (comprise) " and its distortion " comprises " or " comprising " use the implication of it comprising property, that is, specify certain feature existence rather than the existence of eliminating further feature in the embodiment of a plurality of pulling assemblies and using method thereof or the possibility of increase.
Claims (22)
1. pulling assembly that is used for anchor cable, described pulling assembly comprises:
-be suitable for being fixed to the clamping device of anchor cable; And
-be suitable for and the interactional external component of clamping device, do away from external component in the process of relative motion at the axial direction of anchor cable at clamping device by this, clamping device is ordered about to be fastened to anchor cable, external component also is suitable for interacting with anchor cable simultaneously, in the process of above-mentioned relative motion, anchor cable is suppressed with respect to the distortion of external component by this.
2. assembly as claimed in claim 1 is characterized in that, external component comprises all burst of inner surface portion with the distortion of inhibition anchor cable that is suitable for meshing anchor cable.
3. assembly as claimed in claim 2 is characterized in that, inner surface portion comprises one or more elongated protrusion of inwardly stretching out, and each projection is located and is shaped into and protrudes into the respective grooves that forms between the adjacent anchor cable rope strand.
4. assembly as claimed in claim 2, it is characterized in that, external component has the profile of tubbiness, the adequate closure of one end has also kept the passage that is used for anchor cable at this end, inner surface portion is set at the inside of a hollow plug, and described hollow plug can be located and is used for being fastened on the recess that a described end limits and sentence around described passage.
5. assembly as claimed in claim 1 is characterized in that, the lithosphere of anchoring anchor cable interacted when external component was further adapted for and uses, and described results of interaction is that the rotation of external component is suppressed.
6. assembly as claimed in claim 5, it is characterized in that, also comprise in use towards lithosphere and the plate-shaped member that presses to lithosphere, described plate-shaped member is located with respect to anchor cable, like this in anchor cable tension process, one end of external component and plate-shaped member adjacency think that suppressing the external component rotation provides enough frictional resistance.
7. assembly as claimed in claim 6 is characterized in that, the end of external component and plate-shaped member are provided with complementary key shape projection and slit, and they are configured to interfere mutually in operation and are beneficial to provide resistance for suppressing the external component motion.
8. assembly as claimed in claim 7 is characterized in that, described slit is arranged on an end of external component, and described key shape projection is installed in the plate-shaped member.
9. assembly as claimed in claim 7 is characterized in that, key shape projection is installed on the end of external component, and described slit is arranged in the plate-shaped member.
10. assembly as claimed in claim 6, it is characterized in that, the end of external component is formed with a plurality of key surfaces, plate-shaped member is formed with a plurality of complementary key surfaces, described key surface and complementary key surface are configured to be fitted to each other in operation, and being beneficial to provides frictional resistance for the rotation that suppresses external component.
11. the described assembly of arbitrary as described above claim, it is characterized in that, also comprise the handling article that is used for clamping device, described handling article comprises that receiving anchor cable makes its hollow shank of therefrom passing, and described shank is provided with external screw thread and is used for and the corresponding internal thread engagement that is arranged on external component inner surface place.
12. assembly as claimed in claim 11 is characterized in that, described relative motion results from handling article and unscrews from external component.
13. assembly as claimed in claim 11, it is characterized in that, clamping device comprises bucket and wedge assembly, bucket is provided for rotating in handling article extends into the recess of cavity of shank, and described bucket in recess round wedge, in described relative motion process, bucket forces in wedge and presses anchor cable to force them, with this clamping device is fastened to anchor cable by this.
14. assembly as claimed in claim 13 is characterized in that, the corresponding and reverse conical outer surface of each wedge is pressed in the action of the shoulder at the inner end place of the cone-shaped inner surface of bucket by being positioned at the handling article recess.
15. assembly as claimed in claim 14 is characterized in that, also comprises thrust bearing or anti-friction washers between bucket and shoulder.
16. assembly as claimed in claim 11, it is characterized in that, handling article is subjected to the driving of handling article head away from the motion of external component, and described head is formed on the end place that the handling article shank extends beyond external component, and described head is configured as with driven tool and cooperates.
17. a pulling assembly that is used for anchor cable, described pulling assembly comprises:
-be suitable for being fixed to the clamping device of anchor cable;
The handling article that-clamping device is used; And
-be suitable for being placed on the external component on the handling article, an end of handling article protrudes and crosses external component thus, an end that protrudes be suitable for cooperating driven tool with cause handling article along anchor cable axially away from the relative motion of external component, described relative motion is ordered about clamping device and is fastened to anchor cable.
18. assembly as claimed in claim 16 is characterized in that, external component also is suitable for interacting with anchor cable, in relative motion, suppresses the distortion of anchor cable thus.
19. a method that is used to strain the rock stratum stream line said method comprising the steps of:
Grappling anchor cable in-the boring in being formed on the rock stratum;
-on anchor cable, arrange pulling assembly;
-use pulling assembly tension anchor cable to suppress the distortion of anchor cable simultaneously.
20. method as claimed in claim 19 is characterized in that, the step of arranging pulling assembly on anchor cable occurs in before the step of anchorage cable anchoring in the boring.
21., it is characterized in that pulling assembly is disposed in and is positioned at anchor cable and extends on the outer part of boring as claim 19 or 20 described methods.
22. method as claimed in claim 19, it is characterized in that, the anchoring step is included in and inserts fixative container in the boring, inserting anchor cable then in boring breaks container with moving anchor cable, the curing compound material is discharged in the boring from container in the space of anchor cable, and makes curing compound before the tension anchor cable, solidify.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2008901923A AU2008901923A0 (en) | 2008-04-17 | Tension Assembly | |
| AU2008901923 | 2008-04-17 | ||
| AU2009901318 | 2009-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571050A true CN101571050A (en) | 2009-11-04 |
Family
ID=41230506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101419365A Pending CN101571050A (en) | 2008-04-17 | 2009-04-17 | Pulling assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101571050A (en) |
| ZA (1) | ZA200902680B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953298A (en) * | 2019-11-27 | 2020-04-03 | 徐州中翰矿山设备制造有限公司 | Mining one-way self-locking rope clip inner core structure |
| CN111155720A (en) * | 2020-02-19 | 2020-05-15 | 浙江聚能岩土锚固研究有限公司 | Detachable anchorage device |
| CN116163550A (en) * | 2023-04-24 | 2023-05-26 | 河北冀科工程项目管理有限公司 | Steel beam through-wall hole plugging device and plugging method for A-shaped plate |
-
2009
- 2009-04-17 ZA ZA200902680A patent/ZA200902680B/en unknown
- 2009-04-17 CN CNA2009101419365A patent/CN101571050A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953298A (en) * | 2019-11-27 | 2020-04-03 | 徐州中翰矿山设备制造有限公司 | Mining one-way self-locking rope clip inner core structure |
| CN110953298B (en) * | 2019-11-27 | 2021-05-28 | 徐州中翰矿山设备制造有限公司 | Mining one-way self-locking rope clip inner core structure |
| CN111155720A (en) * | 2020-02-19 | 2020-05-15 | 浙江聚能岩土锚固研究有限公司 | Detachable anchorage device |
| CN116163550A (en) * | 2023-04-24 | 2023-05-26 | 河北冀科工程项目管理有限公司 | Steel beam through-wall hole plugging device and plugging method for A-shaped plate |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200902680B (en) | 2010-07-28 |
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| C06 | Publication | ||
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Open date: 20091104 |