CN210564597U - Anchor cable lockset convenient to disassemble - Google Patents

Abstract

The anchor cable lockset convenient to disassemble is composed of a supporting plate, a lock sleeve, a lock flap and a nut, wherein an inner hole of the lock sleeve is a taper hole, the outer wall of the lock flap is conical, the taper of the outer wall of the lock flap is the same as that of the inner hole of the lock sleeve, the lock flap is installed in the lock sleeve, an outer thread is arranged on the outer surface of the lock sleeve, the nut is screwed outside the lock sleeve, after the nut is matched with the lock sleeve, the upper end of the nut is higher than the lock sleeve, the upper end face of the nut is tightly attached to the supporting plate after the nut and the lock sleeve are installed, a gap is formed between the upper. The utility model has simple and reasonable design, convenient installation and disassembly, repeated utilization, reduced labor intensity, improved safety factor, saved production cost, reduced labor intensity and improved working efficiency; when the mining process needs to be dismantled, the nut is outwards withdrawn by using a special wrench, pressure is slowly released, the locking clack cannot hold the locking rope after the pressure is released, the locking rope is loosened by the anchor rope lock, then the locking clack is taken out, and the lock sleeve, the nut and the supporting plate are sequentially taken down, so that reliable guarantee is provided for safe production.

Description

Anchor cable lockset convenient to disassemble

Technical Field

The utility model relates to an anchor rope tool to lock that is used for colliery underground rock roof to strut.

Background

The anchor cable support has the advantages of strong initial supporting force, good support effect, high compressive strength and the like, so the anchor cable support is generally adopted for the top plate of the front and rear crossheading of the coal mining working face of the coal mine. The anchor cable supporting technology is used for reinforcing rock mass through prestress, belongs to an active supporting mode, achieves the purpose of suspending rock stratum, is generally used for large-tonnage engineering, is actively stressed due to the fact that prestress needs to be applied when the stress of an anchor cable is large, belongs to deep reinforcement, limits development of harmful deformation of the rock mass, enables the unstable rock stratum at the lower part to be suspended in the stable rock stratum at the upper part through the anchor cable according to a suspension theory, achieves the effect of suspending a top plate, can obviously improve the stress state of surrounding rock, improves the self-bearing capacity of the surrounding rock, ensures the stability of the surrounding rock, effectively controls the sinking of the top plate, and is suitable for reinforcing the top plate of a large-section underground chamber and a roadway of a coal mine.

When the stoping process of the coal face is carried out, the top plate of the goaf quickly collapses, the crossheading top plates at the front end and the rear end are supported by the anchor cables, the rock top plate is difficult to collapse under the traction action of the anchor cables, the area of the top plate is larger and larger along with the advancement of the stoping, the top plate can completely collapse once to a certain extent, once the top plate with a large area suddenly collapses once, a larger shock wave is formed, and thus, serious potential safety hazards can be caused to the operation personnel and equipment of the coal face. Therefore, in the process of advancing the working face, the anchor cable locks at the front end and the rear end are dismantled in advance, so that the top plate naturally collapses along with the mining progress of coal mining, and the production safety is ensured. The prior art anchor line lock, as shown in fig. 2, is difficult to remove once installed due to the upward pulling force of the anchor line 1 at the upper end of the rock roof 2. The current methods for disassembly mainly include: 1. breaking rock. Crushing the rock on the anchor cable supporting plate by using an air pick, releasing the pressure to ensure that the supporting plate does not bear the pressure, digging out the locking piece, and taking down the lock sleeve and the supporting plate; 2. the monomer support method. The hydraulic single prop is used for propping against a lock supporting plate, and by means of the oil cylinder rope function of the single prop, a lock valve is pulled out after pressure is released for a lock, and a lock sleeve and the supporting plate are taken down; 3. a pneumatic pick shock method. By utilizing the characteristic of repeated movement of the air pick, the pick tip of the air pick strikes the lockset upwards violently, the air pick loosens to obtain a little gap, the lock clack is pulled out by releasing pressure, and the lock sleeve and the supporting plate are taken down. However, the method 1 is expensive to disassemble. At present, a professional dismantling tool is available in the market, although the dismantling is very convenient, the service life is extremely short in the actual use process (after a plurality of anchor cables are dismantled, tooth buckles of the anchor cables are seriously worn and cannot be reused), and a special anchor cable lock dismantling device needs tens of thousands of yuan, so that the production cost is obviously greatly increased. 2. The labor intensity is high. Because professional instrument's life-span is very short, leads to dismantling the rising of cost, for practicing thrift the cost, only use the pneumatic pick through the manpower to just can release the pressure on the tool to lock after the waste rock aboveground anchor cable tray, can take off anchor rope tool to lock, powerful intensity of labour hardly insists on accomplishing a tool to lock roof crushing work alone. 3. The working efficiency is low. Because the hard rock on the upper side of the lockset is broken by adopting the manual traditional pneumatic pick, the working efficiency of breaking the top plate is extremely low (3-4 people can be taken off by each class and every class). 4. The risk factors are many. The anchor cable is generally used on a support of a top plate, needs to stand at a high place for operation during dismantling, generates broken gangue to splash and injures people during dismantling, and is extremely unfavorable for field operation and the safety of peripheral personnel. 5. The noise pollution is heavy. The pneumatic pick can generate great noise in the working process, hundreds of meters can be heard clearly, and if the individual protection is improper, deafness is easily caused, so that the physical health of workers is seriously influenced.

Disclosure of Invention

The utility model aims at designing a convenient anchor rope tool to lock of dismantling, the biggest characteristics of this kind of anchor rope tool to lock are that release pressure, convenient dismantlement are convenient for, but cyclic reuse practices thrift manufacturing cost, reduce intensity of labour, improve work efficiency, eliminate potential safety hazard etc..

Realize the utility model discloses the technical scheme that the purpose was taken is: the lock comprises a supporting plate, a lock sleeve, a lock flap and a nut, wherein an inner hole of the lock sleeve is a taper hole, the outer wall of the lock flap is conical, the taper of the outer wall of the lock flap is the same as that of the inner hole of the lock sleeve, the lock flap is arranged in the lock sleeve, an outer thread is arranged on the outer surface of the lock sleeve, the nut is firstly screwed outside the lock sleeve, and the upper end of the nut is higher than the lock sleeve after the nut is matched with the lock sleeve; after the nut and the lock sleeve are installed, the upper end face of the nut is tightly attached to the supporting plate, and a gap is formed between the upper end face of the lock sleeve and the supporting plate to form a closed space.

The utility model has the advantages that: the design is simple and reasonable, the installation and the disassembly are convenient, the repeated utilization can be realized, the labor intensity is reduced, and the safety factor is improved; when the mining process needs to be dismantled, the special spanner, namely the hydraulic spanner, is used for outwards withdrawing the nut, pressure is slowly released, the locking piece cannot hold the anchor rope locking rope after the pressure is released, the anchor rope lockset loosens the locking rope, then the locking piece is taken out, and the lock sleeve, the nut and the supporting plate are sequentially taken down, so that reliable guarantee is provided for safe production.

Drawings

FIG. 1 is a schematic view of the installation and use state of the present invention;

fig. 2 is a schematic view of a prior art installation and use state.

Detailed Description

The utility model is shown in figure 1, which comprises a supporting plate 3, a lock sleeve 4, a lock lamella 5 and a nut 6, wherein the inner hole of the lock sleeve 4 is a taper hole, the outer wall of the lock lamella 5 is a taper, the taper is the same as the taper of the inner hole of the lock sleeve 4, and the lock lamella 5 is arranged in the lock sleeve 4; the outer surface of the lock sleeve 4 is provided with an outer thread, the nut 6 is screwed outside the lock sleeve 4, when the lock sleeve is used, the nut 6 is firstly screwed on the lock sleeve 4, after the nut 6 is matched with the lock sleeve 4, the upper end of the nut 6 is higher than the lock sleeve 4, after the nut 6 and the lock sleeve 4 are installed, the upper end surface of the nut 6 is tightly attached to the supporting plate 3, a gap is reserved between the upper end surface of the lock sleeve 4 and the supporting plate 3, and a closed space 7 is formed.

The installation method comprises the following steps: in the construction process, firstly, the nut 6 and the lock sleeve 4 are screwed together to form an integral lock sleeve, the upper end of the nut 6 exceeds the upper end of the lock sleeve 4 by about 10mm (a pressure release space is reserved), the end with the small inner diameter of the lock sleeve 4 faces upwards, the end with the large inner diameter faces downwards, and the lock flap 5 is plugged into the lock sleeve 4 from the end with the large inner diameter; drilling a lock hole on a rock top plate 2, cleaning impurities in the hole, manually sending a resin cartridge anchoring agent into the eye ground of the lock hole by using an anchor rope 1, continuously stirring the anchor rope 1 by using an anchor rod machine, carrying out chemical reaction on the resin cartridge anchoring agent for about 30 seconds to solidify, and then withdrawing the anchor rod machine, wherein the anchor rope 1 is firmly fixed on the rock top plate 2, a support plate 3, an integral lock sleeve and a lock flap 5 are sequentially sleeved on the anchor rope 1 after 5 minutes of solidification, the tail part of the anchor rope 1 is generally reserved with a length of about 10 centimeters for convenient installation, at the moment, the lock flap 5 is pushed into the lock sleeve 4 by using an anchor rope tensioning device, the integral lock sleeve is pushed upwards to the position below the support plate 3 to compress the support plate 3, and the support plate 3 is tightly attached to the rock top plate 2.

The disassembling method comprises the following steps: in order to be beneficial to natural collapse of the rock top plate 2, the anchor rope 1 needs to be dismantled in advance in the working face extraction process, the dismantling needs to be completed by means of a torque wrench at the moment, (because a lockset can generate large resistance under the action of the pressure of the top plate, the torque of a common small wrench is insufficient), the nut 6 outside the lock sleeve 4 is rotated to enable the lock sleeve to slowly withdraw downwards, when the pressure is released, the lock sleeve 4 is not stressed any more, meanwhile, the lock clack 5 is naturally loosened and does not tightly embrace the anchor rope 1, at the moment, the lock clack 5, the lock sleeve 4 and the supporting plate 3 can be easily taken out, and the whole dismantling process is completed.

Claims (1)

1. The utility model provides a convenient anchor rope tool to lock of dismantling comprises layer board, lock sleeve, lock lamella, and the lock sleeve hole is the taper hole, and the lock lamella outer wall is the toper, and its tapering is the same with lock sleeve hole tapering, and the lock lamella is installed in the lock sleeve, its characterized in that: the outer surface of the lock sleeve is provided with an external thread, a nut is screwed outside the lock sleeve, the upper end of the nut is higher than the lock sleeve after the nut is matched with the lock sleeve, the upper end face of the nut is tightly attached to the supporting plate after the nut and the lock sleeve are installed, and a gap is formed between the upper end face of the lock sleeve and the supporting plate to form a closed space.

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