CN114198127B - Automatic unlocking device for prestressed anchor cable - Google Patents
Automatic unlocking device for prestressed anchor cable Download PDFInfo
- Publication number
- CN114198127B CN114198127B CN202111458754.8A CN202111458754A CN114198127B CN 114198127 B CN114198127 B CN 114198127B CN 202111458754 A CN202111458754 A CN 202111458754A CN 114198127 B CN114198127 B CN 114198127B
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- 239000002131 composite material Substances 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 12
- 239000002002 slurry Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0093—Accessories
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an automatic pre-stress anchor cable unlocking device which comprises a jack and an anchor cable assembly, wherein a pre-opening hole is formed outside a cavity of the anchor cable assembly, one end of the anchor cable assembly is provided with a wall embedding mechanism, one end of the wall embedding mechanism is provided with the jack, and an oil pipe is arranged on the outer wall of the jack. According to the automatic prestress anchor cable unlocking device, oil pressure is led in through the oil outlet head, oil is led into the oil cavity and the inner cavity of the oil inlet cavity through the oil outlet head, the first oil seal disc and the second oil seal disc are pushed to move forwards in the inner cavity of the jack, and the fact that the cavity spiral tube rotates reversely at the moment can be seen from the description, so that the inner core connected with the clamping piece is pulled out of the groove hole of the lock sleeve, unlocking of stress is achieved, and mud is led in from the mud hole reserved in the front face of the composite board after the operation is completed.
Description
Technical Field
The invention relates to the field of anchor cables, in particular to an automatic unlocking device for a prestressed anchor cable.
Background
The anchor cable support is used as the reinforcement support of the roadway, the support effect is good, and particularly, the anchor cable reinforcement support is adopted to control the roadway deformation in the 15# coal seam fully-mechanized caving face goaf side roadway, so that the effect is quite obvious. Because the prior equipment can not effectively unlock and unload, the area of the mountain falling suspended roof at the end of the working face is increased, and particularly, the air return mountain falling angle gas is often overrun, the mountain falling suspended roof is forced to be temporarily solved by adopting a forced roof caving or filling method, the safety production of the working face is directly influenced, and the metal bracket is seriously lost. Aiming at the current situation, the anchor cable unlocking sleeve is developed according to the principles of safety, easiness, simplicity, convenience, low cost and good effect, and the anchor cable unlocking sleeve is used by a working face, so that the unlocking effect is ideal, and conditions are created for safety production.
According to the anchor cable supporting principle, the lock is a main component for transmitting force, and the lock consists of a lock sleeve and an inner core, and the aim of unlocking is to eliminate or release friction force of the lock sleeve and the inner core. However, the anchor cable unlocking device in the prior art has some disadvantages: firstly, the lock sleeve is sheared and damaged, the internal force is released, the unlocking is realized, the unlocking technology is still immature, the lock is damaged, and the lock cannot be reused. Secondly, utilize anchor rope pretension jack, oil pump as the power supply, form two relative atress points on the anchor rope, a point is used on the steel twisted wire, start the oil pump promptly, the jack is fixed on the steel twisted wire that exposes, form the fixed force point relatively, along with the extension of piston, another point is used on the lock sleeve, the friction of lock sleeve and inner core is eliminated gradually after the atress until producing relative displacement, realize the unblock, and the tool to lock basically can multiplexing, but in the earlier stage of carrying out the displacement to lock sleeve and inner core, lock sleeve and inner core can not appear the skew, can appear the anchor rope after stretching to the design value, even after exceeding the stretch-draw, at the time of locking at last, the stretch-draw value also can appear falling very fast problem.
Therefore, there is a need to develop an automatic pre-stressed anchor cable unlocking device to solve the above-mentioned problems of the prior art.
Disclosure of Invention
The invention aims to provide an automatic unlocking device for a prestressed anchor cable, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the invention provides an automatic pre-stress anchor cable unlocking device, which comprises a jack and an anchor cable assembly, wherein a pre-opening hole is formed outside a cavity of the anchor cable assembly, one end of the anchor cable assembly is provided with a wall embedding mechanism, one end of the wall embedding mechanism is provided with the jack, an oil pipe is arranged on the outer wall of the jack, an oil outlet head is arranged at the oil inlet end of the oil pipe, an oil inlet head is arranged at the oil outlet end of the oil pipe, the jack comprises an introducing cap, a front cap member is arranged at the bottom end of the introducing cap, a screw pipe is arranged in an inner cavity of the front cap member, a butt column disc is arranged at the bottom end of the screw pipe, a conical cap is inserted at the vertical column end of the butt column disc, a built-in cap column is arranged in the inner cavity of the conical cap, an inner cavity opening of the built-in cap column is connected with an extending cavity head, one end of the extending cavity is provided with a rib cavity, a moving cylinder is arranged on the outer wall of the rib cavity, a first oil seal disc is arranged at the tail end of the inner cavity of the jack, a sealing shaft disc is arranged in the cavity hole of the first oil seal disc is arranged in the jack, and a tail cap disc is arranged on the back face of the first oil seal disc.
In a preferred embodiment, an unlocking assembly is arranged in the slotted hole of the introducing cap, the unlocking assembly comprises a stud and a cavity screw tube, the top end of the cavity screw tube is provided with a clamping piece, the middle part of the cavity screw tube is provided with a introducing cavity hole tube, and the inner cavity of the stud is also provided with a perforated hole.
In a preferred embodiment, the bottom of the stud is provided with an outer protective sleeve, the middle part of the back of the outer protective sleeve is provided with a gear assembly, a right side gear of the gear assembly is provided with a first gear through a connecting column, the outer wall of the first gear is meshed with a second gear, one end of the first gear is connected with a bearing mounting plate through a rotating pin, and the outer wall of the bearing mounting plate is provided with a mounting shell.
In a preferred embodiment, the inner cavity of the second gear is provided with a third gear, a transverse meshing gear column is arranged in the inner cavity of the third gear, one end of the transverse meshing gear column is meshed with a vertical meshing gear column, the top end of the vertical meshing gear column is fixedly connected with a tooth mouth rod, a tooth mouth is arranged on the outer wall of the tooth mouth rod, the outer wall of the tooth mouth rod is meshed with a tooth mouth rod, and a tooth sheet is arranged on the outer wall of the tooth mouth rod.
In a preferred embodiment, the top end of the tooth bar is fixedly connected with a butt joint bar, one end of the butt joint bar is fixedly connected with a moving cylinder, a protective tube is arranged in the inner cavity of the moving cylinder, and a rib cavity is formed in the inner cavity of the protective tube.
In a preferred embodiment, an oil cavity is arranged between the cylinder and the jack, a second oil seal disc is arranged at the bottom end of the cylinder, a first oil seal disc is arranged on the back surface of the second oil seal disc, and the outer wall of the rib cavity is positioned between the second oil seal disc and the first oil seal disc at the rear part of the rib cavity.
In a preferred embodiment, the wall embedding mechanism comprises a composite board and a lock sleeve, wherein the middle part of the front vertical face of the composite board is fixedly connected with the lock sleeve, the front face of the lock sleeve is provided with a pair of through holes, the positions of the pair of through holes are inserted with binding bars, and an inner core is inserted between the binding bars and the pair of through holes.
In a preferred embodiment, the anchor cable assembly comprises a smooth sleeve, wherein ribs are arranged in the inner cavity of the smooth sleeve, one ends of the ribs are provided with tie bars, the ribs are fixedly welded with the tie bars, a first vertical line plate is arranged on the outer wall of the ribs, a second vertical line plate is arranged on the inner wall of the first vertical line plate, and a guide cap is welded at the bottom ends of the ribs.
In a preferred embodiment, a limit screw assembly is welded on the back of the composite board, a smooth sleeve is arranged in an inner cavity of the limit screw assembly, a lock sleeve is arranged at one end of the smooth sleeve, and the lock sleeve and an opening at one end of the smooth sleeve are positioned on the same horizontal plane.
In a preferred embodiment, one end of the clamping member is provided with an inner core, which is located at the notch portion of the clamping member.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, when the butt joint rod moves backwards, the tooth rod connected with one end drives the tooth rod to rotate, the tooth rod and the tooth rod are in a meshing shape, so that the rotation of the tooth rod is realized, after the tooth rod rotates, a transverse meshing gear post meshed with the bottom end of the tooth rod is also driven to rotate, one end of the transverse meshing gear post is positioned in a third gear cavity formed by the second gear and fixed, further, the rotation of the second gear is realized, the first gear meshed with the outer wall of the second gear is matched with the rotation, after the bearing mounting plate rotates, the gear assembly integrally rotates through the connecting rod, after the gear assembly rotates, a stud arranged at the top end of the gear assembly rotates in the cavity screw, and when the stud rotates, the stud drives the cavity screw to move forwards, wherein a clamping piece connected with the top end of the cavity screw and an inner core are in a connecting shape, and the inner core is in a cross bolt shape, so that the inner core cannot rotate in the operation of the lock sleeve, the forward displacement of the limit screw assembly is realized, the inner core is pulled by the cross bolt shape, and the stress is prevented from falling off when the inner core is pulled.
According to the invention, when oil pressure is introduced through the oil outlet head, oil is introduced into the oil cavity and the inner cavity of the oil inlet cavity through the oil outlet head, and the first oil seal disc and the second oil seal disc are pushed to move forwards in the inner cavity of the jack, the cavity screw tube can rotate reversely at the moment, so that the inner core connected with the clamping piece is pulled out from the groove hole part of the lock sleeve, unlocking of stress is realized, and after the completion, mud is introduced from the mud hole reserved on the front surface of the composite plate.
According to the invention, the perforated part of the lock sleeve is penetrated by aiming at the tie bar, the lock sleeve is limited on the composite plate, and the tie bar is limited at the same time, after the installation, the anchor cable assembly is required to be subjected to stress locking, the tie bar is led out from the tail cap disc through the inner cavity of the unlocking assembly and the inner cavity of the jack, the tie bar is fixed on the tail cap disc through the lock cap, the clamping piece arranged at the top end of the unlocking assembly and the tie bar are clamped and fixed, then the oil pipe connected with one end of the jack is controlled to be matched with the oil inlet head for oil inlet, oil enters the inner cavity of the oil cavity along the oil pipe, the oil pressure pushes the second oil seal disc to displace backwards in the inner cavity of the jack, and when the second oil seal disc displaces backwards, the bar cavity connected with the second oil seal disc is inevitably pulled backwards, and when the tie bar positioned at the inner cavity part of the protective pipe is displaced backwards, the butt rod connected with the top end of the protective pipe is also displaced backwards, and the structure is more reasonable.
Drawings
Fig. 1 is a schematic structural view of an automatic prestressed anchor cable unlocking device of the present invention;
fig. 2 is a block diagram of a jack in the automatic prestressed anchorage cable unlocking device of the present invention;
fig. 3 is a block diagram of an unlocking assembly in the automatic prestressed anchorage cable unlocking device of the present invention;
fig. 4 is an exploded view of a jack in the automatic prestressed anchorage cable unlocking device of the present invention;
fig. 5 is a cross-sectional view of a jack in the automatic prestressed anchorage cable unlocking device of the present invention;
fig. 6 is a schematic diagram of the connection between the unlocking assembly and the jack in the automatic prestressed anchor cable unlocking device of the invention;
FIG. 7 is an enlarged view at A of FIG. 6;
fig. 8 is a block diagram of an anchor line assembly in the automatic prestressed anchor line unlocking device of the present invention.
Reference numerals illustrate:
jack 1, wall-embedding mechanism 2, anchor cable assembly 3, composite plate 4, joint rib 5, pre-opening 6, unlocking assembly 7, intake cap 8, screw 9, conical cap 10, moving cylinder 11, oil chamber 12, protective tube 13, oil tube 14, second oil seal disc 15, oil inlet head 16, oil outlet head 17, oil inlet chamber 18, tail cap disc 19, first oil seal disc 20, rib chamber 21, built-in cap post 22, pre-cap member 23, docking post disc 24, extension cavity head 25, docking rod 26, stud 27, cavity screw 28, intake cavity tube 29, clamp 30, second gear 31, transversely-meshed gear post 32, toothed bar 33, vertically-meshed gear post 34, toothed bar 35, inner core 36, lock sleeve 37, stop screw assembly 38, smooth sleeve 39, rib 40, first vertical wire plate 41, second vertical wire plate 42, guide cap 43, cavity 44, third gear 44, bearing mounting plate 45, first gear 46, mounting shell 47, gear assembly 48, and outer protective sleeve 49.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 8, the automatic pre-stressed anchor cable unlocking device of the preferred embodiment of the invention comprises a jack 1 and an anchor cable assembly 3. The cavity of anchor rope assembly 3 is provided with pre-opening 6 outward, and the one end of anchor rope assembly 3 is provided with wall embedding mechanism 2, and the one end of wall embedding mechanism 2 is provided with jack 1, installs oil pipe 14 on the outer wall of jack 1, and oil pipe 14 oil inlet end installs out oily head 17, and oil pipe 14 oil outlet end installs into oily head 16. The jack 1 comprises an introduction cap 8, a preposed cap piece 23 is arranged at the bottom end of the introduction cap 8, a screw pipe 9 is arranged in an inner cavity of the preposed cap piece 23, a butt joint column disc 24 is arranged at the bottom end of the screw pipe 9, a conical cap 10 is inserted into a vertical column end of the butt joint column disc 24, a built-in cap column 22 is arranged in an inner cavity of the conical cap 10, an extension cavity head 25 is connected with an inner cavity opening of the built-in cap column 22 in a threaded manner, a rib cavity 21 is arranged at one end of the extension cavity head 25, and a moving cylinder 11 is arranged on the outer wall of the rib cavity 21. The inner cavity tail end of the jack 1 is provided with a first oil sealing disc 20, a sealing shaft disc is arranged in a cavity hole with the first oil sealing disc 20, and a tail cap disc 19 is arranged on the back surface of the first oil sealing disc 20.
Further, an unlocking assembly 7 is installed in the slot hole of the introducing cap 8, the unlocking assembly 7 comprises a stud 27 and a cavity screw tube 28, a clamping piece 30 is installed at the top end of the cavity screw tube 28, an introducing cavity hole tube 29 is formed in the middle of the cavity screw tube 28, a counter-perforation is formed in the inner cavity of the stud 27, an outer protective sleeve 49 is installed at the bottom end of the stud 27, and a gear assembly 48 is installed at the middle position of the back surface of the outer protective sleeve 49.
Specifically, the right side gear of the gear assembly 48 is provided with a first gear 46 through a connecting column, the outer wall of the first gear 46 is meshed with a second gear 31, one end of the first gear 46 is connected with a bearing mounting plate 45 through a rotary pin, an installation shell 47 is arranged on the outer wall of the bearing mounting plate 45, the inner cavity of the second gear 31 is provided with a third gear 44, a transverse meshing gear column 32 is arranged in the inner cavity of the third gear 44, one end of the transverse meshing gear column 32 is meshed with a vertical meshing gear column 34, and the top end of the vertical meshing gear column 34 is fixedly connected with a tooth mouth rod 33.
Further, a tooth mouth is formed in the outer wall of the tooth mouth rod 33, a tooth rod 35 is meshed with the outer wall of the tooth mouth rod 33, a tooth sheet is mounted on the outer wall of the tooth rod 35, the top end of the tooth rod 35 is fixedly connected with a butt joint rod 26, one end of the butt joint rod 26 is fixedly connected with a moving cylinder 11, a protective tube 13 is mounted in the inner cavity of the moving cylinder 11, and a rib cavity 21 is formed in the inner cavity of the protective tube 13.
Further, an oil cavity 12 is arranged between the moving cylinder 11 and the jack 1, a second oil sealing disk 15 is arranged at the bottom end of the moving cylinder 11, and a first oil sealing disk 20 is arranged on the back surface of the second oil sealing disk 15. The outer wall of the rib chamber 21 is located between the second oil seal plate 15 and the first oil seal plate 20 at a rear portion thereof.
Specifically, the wall embedding mechanism 2 comprises a composite board 4 and a lock sleeve 37, wherein the middle part of the front vertical face of the composite board 4 is fixedly connected with the lock sleeve 37, the front face of the lock sleeve 37 is provided with a pair of through holes, the pair of through holes is inserted with a binding rib 5, an inner core 36 is inserted between the binding rib 5 and the pair of through holes, the anchor cable assembly 3 comprises a smooth sleeve 39, a rib 40 is arranged in the inner cavity of the smooth sleeve 39, one end of the rib 40 is provided with the binding rib 5, and the rib 40 is fixedly welded with the binding rib 5.
Further, a first vertical line plate 41 is installed on the outer wall of the rib 40, a second vertical line plate 42 is installed on the inner wall of the first vertical line plate 41, a guide cap 43 is welded at the bottom end of the rib 40, and a limit screw assembly 38 is welded on the back of the composite board 4.
Further, a smooth sleeve 39 is arranged in the inner cavity of the limit screw assembly 38, a lock sleeve 37 is arranged at one end of the smooth sleeve 39, the lock sleeve 37 and an opening at one end of the smooth sleeve 39 are positioned on the same horizontal plane, an inner core 36 is arranged at one end of the clamping piece 30, and the inner core 36 is positioned at the notch part of the clamping piece 30.
The working principle of the automatic prestressed anchor cable unlocking device is specifically explained as follows:
when the slope is reinforced, the foundation is perforated by the drilling machine, the last end of the drill rod of the drilling machine is removed, the anchor cable assembly 3 is placed in the drill rod, and the anchor cable assembly 3 is pushed into the cavity of the slope through the push rod device.
The guide cap 43 included in the anchor cable assembly 3 firstly enters the deepest part of the cavity, the ribs 40 are limited and fixed by the first vertical line plate 41 and the second vertical line plate 42, when the anchor cable assembly 3 is inserted into the cavity of the pre-opening hole 6, the smooth sleeve 39 is required to be inserted into the top part of the cavity of the pre-opening hole 6 in advance, the composite board 4 and the slope are fixed, and the installed limiting screw assembly 38 is also positioned at the slope part.
At this time, the lock sleeve 37 needs to be installed on the front side of the composite board 4, the hole part of the lock sleeve 37 is aligned with the tie bar 5 to be inserted, the lock sleeve 37 will be limited on the composite board 4, and the tie bar 5 is limited at the same time, after the installation, the anchor cable assembly 3 needs to be stress locked.
Specific: the tie bar 5 is led out from the tail cap disc 19 through the inner cavity of the unlocking assembly 7 and the inner cavity of the jack 1 again, the tie bar 5 is fixed on the tail cap disc 19 through the lock cap, the clamping piece 30 arranged at the top end of the unlocking assembly 7 and the tie bar 5 are clamped and fixed, then the oil pipe 14 connected with one end of the jack 1 is controlled to be matched with the oil inlet head 16 to carry out oil inlet, oil enters the inner cavity of the oil cavity 12 along the oil pipe 14, the oil pressure pushes the second oil seal disc 15 to displace backwards in the inner cavity of the jack 1, the bar cavity 21 connected with the second oil seal disc 15 inevitably displaces backwards when the second oil seal disc 15 displaces backwards, the bar cavity 21 positioned at the inner cavity part of the protection tube 13 pulls backwards on the tie bar 5 at the cavity opening part of the protection tube, and the butt joint rod 26 connected with the top end of the protection tube is also displaced backwards when the cylinder 11 displaces backwards;
when the butt-joint rod 26 moves backwards, the tooth rod 35 connected with one end drives the tooth rod 33 to rotate, because the tooth rod 33 and the tooth rod 35 are in a meshing shape, the rotation of the tooth rod 33 is realized, after the tooth rod 33 rotates, the transverse meshing gear post 32 meshed with the bottom end of the tooth rod 33 is also driven to rotate, one end of the transverse meshing gear post 32 is positioned in the inner cavity of the third gear 44 formed by the second gear 31 and fixed, the rotation of the second gear 31 is realized, the first gear 46 meshed with the outer wall of the second gear 31 is also matched with the rotation, after the bearing mounting plate 45 rotates, the whole of the gear assembly 48 is rotated through the connecting rod, after the rotation of the gear assembly 48, the stud 27 arranged at the top end of the gear assembly 48 rotates in the inner cavity of the cavity screw 28, and the stud 27 drives the cavity screw 28 to move forwards when rotating, the clamping piece 30 and the inner core 36 connected with the top end of the cavity screw 28 are in a connecting shape, and simultaneously the inner core 36 and the inner core 37 are controlled in a cross joint shape, so that the inner core 36 is not pushed by the inner core 37 is pushed by the inner core 37, and the inner core 37 is prevented from moving forwards, and the inner core 37 is pushed by the inner core 37 is completely, and the inner core 37 is pushed.
After the above, after the oil pressure is introduced through the oil outlet head 17, the oil is introduced into the inner cavities of the oil cavity 12 and the oil inlet cavity 18 through the oil outlet head 17, and the first oil seal disk 20 and the second oil seal disk 15 are pushed to displace forward in the inner cavity of the jack 1, the cavity screw 28 can rotate reversely at the moment, so that the inner core 36 connected with the pulling clamping piece 30 is pulled out from the slotted hole part of the lock sleeve 37, thereby unlocking the stress is realized, and after the above, the slurry is introduced from the slurry hole reserved on the front surface of the composite board 4.
Injecting slurry into the inner cavity of the pre-opened hole 6, and allowing the slurry to flow into the inner cavity of the pre-opened hole 6 through the smooth sleeve 39 and limiting the whole anchor cable assembly 3 in the pre-opened hole 6;
when the ribs 40 are pulled, the first vertical plate 41 will move towards one end of the smooth sleeve 39 and contact with one end of the smooth sleeve 39 to be blocked, so as to realize positioning, the whole anchor cable assembly 3 will be in a straight state, and the stress of the anchor cable assembly 3 will be maximized when slurry is injected, so that the anchor cable assembly 3 is prevented from being in a bent soft state, and the anchor cable assembly 3 cannot be stressed and held after slurry is injected.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (2)
1. The utility model provides an automatic unlocking means of prestressed anchorage cable, includes jack (1) and anchor rope assembly (3), its characterized in that: the novel oil seal device is characterized in that a pre-opening hole (6) is formed in the outside of a cavity of the anchor cable assembly (3), a wall embedding mechanism (2) is arranged at one end of the anchor cable assembly (3), a jack (1) is arranged at one end of the wall embedding mechanism (2), an oil pipe (14) is arranged on the outer wall of the jack (1), an oil outlet head (17) is arranged at the oil inlet end of the oil pipe (14), an oil inlet head (16) is arranged at the oil outlet end of the oil pipe (14), the jack (1) comprises an introducing cap (8), a front cap piece (23) is arranged at the bottom end of the introducing cap (8), a screw pipe (9) is arranged in an inner cavity of the front cap piece (23), a butt column disc (24) is arranged at the bottom end of the screw pipe (9), a conical cap (10) is inserted at the vertical column end of the butt column disc (24), an inner cavity opening of the conical cap (10) is internally provided with an inner cap column (22), an extending cavity head (25) is connected with an inner thread, an inner cavity rib (21) is arranged at the inner end of the inner cavity opening of the conical cap (10), an inner cavity of the conical cap (20) is provided with an inner sealing disc (20), an inner sealing disc (20) is arranged at the inner end of the inner cavity of the sealing disc (21), the inner cavity of the sealing disc (20), and the back surface of the first oil sealing disk (20) is provided with a tail cap disk (19),
an unlocking assembly (7) is arranged in a slotted hole of the introducing cap (8), the unlocking assembly (7) comprises a stud (27) and a cavity screw tube (28), a clamping piece (30) is arranged at the top end of the cavity screw tube (28), an introducing cavity screw tube (29) is arranged at the middle part of the cavity screw tube (28), a hole is also formed in an inner cavity of the stud (27), an outer protective sleeve (49) is arranged at the bottom end of the stud (27), a gear assembly (48) is arranged at the middle part of the back surface of the outer protective sleeve (49), a first gear (46) is arranged on the right side gear of the gear assembly (48) through a connecting column, a second gear (31) is meshed with the outer wall of the first gear (46), one end of the first gear (46) is connected with a bearing mounting plate (45) through a rotating pin, a mounting shell (47) is arranged on the outer wall of the bearing mounting plate (45),
a third gear (44) is arranged in the inner cavity of the second gear (31), a transverse meshing gear column (32) is arranged in the inner cavity of the third gear (44), one end of the transverse meshing gear column (32) is meshed with a vertical meshing gear column (34), the top end of the vertical meshing gear column (34) is fixedly connected with a tooth mouth rod (33), a tooth mouth is arranged on the outer wall of the tooth mouth rod (33), a tooth mouth rod (35) is meshed on the outer wall of the tooth mouth rod (33), a tooth sheet is arranged on the outer wall of the tooth mouth rod (35),
the top end of the tooth rod (35) is fixedly connected with a butt joint rod (26), one end of the butt joint rod (26) is fixedly connected with a moving cylinder (11), a protecting pipe (13) is arranged in the inner cavity of the moving cylinder (11), a rib cavity (21) is arranged in the inner cavity of the protecting pipe (13),
the anchor cable assembly (3) comprises a smooth sleeve (39), a rib (40) is arranged in an inner cavity of the smooth sleeve (39), a binding rib (5) is arranged at one end of the rib (40), the rib (40) is fixedly welded with the binding rib (5), a first vertical line plate (41) is arranged on the outer wall of the rib (40), a second vertical line plate (42) is arranged on the inner wall of the first vertical line plate (41), a guide cap (43) is welded at the bottom end of the rib (40),
the wall embedding mechanism (2) comprises a composite board (4) and a lock sleeve (37), the middle part of the front elevation of the composite board (4) is fixedly connected with the lock sleeve (37), the front surface of the lock sleeve (37) is provided with a pair of through holes, the positions of the pair of through holes are inserted with a binding rib (5), an inner core (36) is inserted between the binding rib (5) and the pair of through holes,
a limit screw assembly (38) is welded on the back of the composite board (4), a smooth sleeve (39) is arranged in the inner cavity of the limit screw assembly (38), a lock sleeve (37) is arranged at one end of the smooth sleeve (39), the lock sleeve (37) and an opening at one end of the smooth sleeve (39) are positioned on the same horizontal plane,
an inner core (36) is arranged at one end of the clamping piece (30), the inner core (36) is positioned at the notch part of the clamping piece (30),
when the butt joint rod moves backwards, the tooth rod connected with one end of the butt joint rod drives the tooth rod to rotate, the tooth rod and the tooth rod are in a meshing shape, so that the rotation of the tooth rod is realized, after the tooth rod rotates, a transverse meshing gear post meshed with the bottom end of the tooth rod is also driven to rotate, one end of the transverse meshing gear post is positioned in a third gear inner cavity formed by the second gear and is fixed, further the rotation of the second gear is realized, a first gear meshed with the outer wall of the second gear is also matched with the rotation, after the first gear rotates, the gear assembly is integrally rotated through a connecting rod, after the gear assembly rotates, a stud arranged at the top end of the gear assembly rotates in the inner cavity of the cavity screw, and when the stud rotates, the cavity screw is driven to move forwards, a clamping piece connected with the top end of the cavity screw and an inner core are in a connecting shape, and meanwhile, the inner core cannot rotate in the control of the lock sleeve in a cross bolt shape, so that the inner core cannot move forwards in the lock sleeve, the limit screw assembly is realized, after the first gear rotates, the gear assembly rotates through the gear assembly, the stud is integrally connected with the connecting rod, and the stud is prevented from falling off when the inner core is pulled, and the fastener is fastened when the lock bar is pulled.
2. The automatic prestressed anchor cable unlocking device according to claim 1, wherein: an oil cavity (12) is formed between the moving cylinder (11) and the jack (1), a second oil seal disc (15) is installed at the bottom end of the moving cylinder (11), a first oil seal disc (20) is arranged on the back surface of the second oil seal disc (15), and the rear part of the outer wall of the rib cavity (21) is located between the second oil seal disc (15) and the first oil seal disc (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458754.8A CN114198127B (en) | 2021-12-02 | 2021-12-02 | Automatic unlocking device for prestressed anchor cable |
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| CN202111458754.8A CN114198127B (en) | 2021-12-02 | 2021-12-02 | Automatic unlocking device for prestressed anchor cable |
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| CN114198127B true CN114198127B (en) | 2024-03-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006203767A1 (en) * | 2005-09-01 | 2007-03-15 | Cutting Edge Technology Pty Ltd | A machine to insert a rock bolt |
| CN110004827A (en) * | 2019-04-02 | 2019-07-12 | 中国建筑第二工程局有限公司 | Anchor cable unlocking device |
| CN210917343U (en) * | 2019-07-15 | 2020-07-03 | 张越胜 | Can dismantle locking-type device of anchor rope |
| CN212774348U (en) * | 2020-08-25 | 2021-03-23 | 天津同鑫煤矿机械制造有限公司 | Mining anchor rope stretch-draw machines |
| CN213418521U (en) * | 2020-09-28 | 2021-06-11 | 常州真友矿山设备有限公司 | Anchor cable stretching machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2619208A1 (en) * | 2007-01-31 | 2008-07-31 | Jennmar Corporation | Tensioning assembly for a cable bolt |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006203767A1 (en) * | 2005-09-01 | 2007-03-15 | Cutting Edge Technology Pty Ltd | A machine to insert a rock bolt |
| CN110004827A (en) * | 2019-04-02 | 2019-07-12 | 中国建筑第二工程局有限公司 | Anchor cable unlocking device |
| CN210917343U (en) * | 2019-07-15 | 2020-07-03 | 张越胜 | Can dismantle locking-type device of anchor rope |
| CN212774348U (en) * | 2020-08-25 | 2021-03-23 | 天津同鑫煤矿机械制造有限公司 | Mining anchor rope stretch-draw machines |
| CN213418521U (en) * | 2020-09-28 | 2021-06-11 | 常州真友矿山设备有限公司 | Anchor cable stretching machine |
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| CN114198127A (en) | 2022-03-18 |
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