CN115929369A - Multifunctional drilling box for anchor rod support - Google Patents

Abstract

The invention discloses a multifunctional drill box for anchor bolt support, which comprises: the chassis, first pivot, the second pivot, the anchor subassembly is annotated, a plurality of non return subassemblies, driving piece and drive assembly, first pivot is rotationally established on the chassis, first pivot is equipped with first through-hole, the second pivot cooperation just is portable along the length direction of first pivot in first through-hole, the second pivot is equipped with the second through-hole, anchor subassembly slidable ground is established on the chassis, the anchor subassembly runs through the second through-hole and rotationally links to each other with the second pivot, be equipped with many fluid passage with first through-hole intercommunication respectively on the anchor subassembly, the non return subassembly is established in fluid passage, the driving piece passes through drive assembly and links to each other with first pivot. The drilling box prevents the fluid channel from rotating relative to the surrounding environment in the working process, so that the fluid channel is suitable for conveying fluid medium which is easy to react and easy to volatilize and dissipate. And, the liquid in the fluid passage is also prevented from flowing backward.

Description

Multifunctional drilling box for anchor rod support

Technical Field

The invention relates to the technical field of mine roadway support equipment, in particular to a multifunctional drill box for anchor rod support.

Background

The anchor bolt support can effectively control the deformation of surrounding rocks, and is widely applied to the fields of coal mines, metal mines and the like. Taking coal mine roadway support as an example, the anchor bolt support process flow is as follows: drilling a hole in the coal roadway surrounding rock by using a drill rod, manually plugging the resin anchoring agent into the drilled hole, putting the anchor rod into the hole, stirring, and pre-tightening the anchor rod after the anchoring agent is solidified.

However, the anchor bolt support construction process has the following problems: 1. after the holes are drilled, the surrounding rocks are easy to collapse under the action of mining stress, the difficulty of manually filling the anchoring agent into the drilled holes is high, especially when the coal rock body is broken or the wall of the drilled hole is uneven, a certain time is needed to complete the installation of the anchoring agent, and the supporting efficiency is reduced. 2. Drilling, mounting the anchoring agent and pre-tightening are completed by using different tools, and the drill rod dismounting and the switching of the different tools are completed only by consuming longer time. In addition, during the anchoring process, the construction efficiency is also affected by the backflow of the anchoring agent.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

To this end, embodiments of the present invention provide a multi-functional drill box for bolting that is suitable for transporting reactive, volatile dissipative fluid materials.

The multifunctional drill box for bolting of the embodiment of the invention comprises: case base, first pivot, second pivot, anchor subassembly, a plurality of non return subassembly, driving piece and drive assembly, first pivot is rotationally established on the case base, first pivot is equipped with the edge the first through-hole that the length direction of first pivot extends, at least partial cooperation of second pivot is in the first through-hole, the second pivot is followed the length direction of first pivot is portable, the second pivot is equipped with the edge the second through-hole that the length direction of second pivot extends, establish anchor subassembly slidable on the case base, the anchor subassembly runs through the second through-hole, the anchor subassembly with the second pivot rotationally links to each other, be equipped with many on the anchor subassembly respectively with the fluid passage of first through-hole intercommunication, it is a plurality of non return subassembly and many the fluid passage one-to-one, the non return subassembly is established in the fluid passage, the non return subassembly is used for making liquid only follow the fluid passage orientation the direction flow of first through-hole, the driving piece is established on the case base, the driving piece passes through the drive subassembly with first pivot links to rotate the axle.

According to the multifunctional drill box for supporting the anchor rod, the driving piece drives the first rotating shaft to rotate through the transmission assembly, so that the construction operation of drilling and pre-tightening the anchor rod is realized. And conveying a fluid medium to the anchor rod through the fluid channel of the anchoring and grouting assembly so as to realize the anchoring operation of the anchor rod. And the second rotating shaft drives the anchor injection assembly to move, so that the condition that the anchor injection assembly and the anchor rod are interfered in the anchoring process is avoided, the second rotating shaft can rotate relative to the anchor injection assembly, and the fluid channel is further prevented from rotating relative to the surrounding environment in the working process, so that the fluid channel is suitable for conveying fluid media which are easy to react and dissipate easily.

In some embodiments, the first through hole comprises an anchor rod section and an avoidance section, an internal thread is arranged in the avoidance section, an external thread matched with the internal thread is arranged on the outer peripheral wall of the second rotating shaft, and the second rotating shaft located in the avoidance section is in threaded connection with the avoidance section.

In some embodiments, the anchor injection assembly includes a liquid distribution member and a liquid injection member, the liquid distribution member is slidably disposed on the box base along a length direction of the first rotating shaft, the liquid injection member is cylindrical, a first end of the liquid injection member is connected to the liquid distribution member, the liquid injection member penetrates through the second through hole, the second rotating shaft is rotatably connected to the liquid injection member, and the fluid channel is disposed on the liquid distribution member and the liquid injection member.

In some embodiments, the check assembly includes a valve body, a magnetic valve core and a magnetic member, the magnetic valve core and the magnetic member are disposed in the valve body, the magnetic valve core is changeable between a first position and a second position, and when the magnetic valve core is located at the first position, the magnetic valve core is adsorbed on the magnetic member to block the fluid passage; when the magnetic valve core is located at the second position, the magnetic valve core is separated from the magnetic part so as to conduct the fluid channel.

In some embodiments, the inner peripheral wall of the valve body has an annular fixing portion, the magnetic member is disposed on the fixing portion, the magnetic valve element passes through the fixing portion, the magnetic valve element has a blocking portion and a limiting portion, the blocking portion is connected with the limiting portion, the limiting portion is used for limiting the separation of the magnetic valve element from the valve body, and when the magnetic valve element is located at the first position, the blocking portion is adsorbed on the magnetic member.

In some embodiments, the injection device further includes a first limiting member and a second limiting member, the first limiting member and the second limiting member are respectively disposed in the second through hole, and the first limiting member and the second limiting member are respectively configured to limit displacement of the injection member in the length direction of the first rotating shaft.

In some embodiments, the anchor injection assembly further comprises a limiting slide rod, the limiting slide rod is arranged on the box base, the length direction of the limiting slide rod is consistent with the length direction of the first rotating shaft, a limiting hole is formed in the liquid distribution part, the limiting slide rod penetrates through the limiting hole, and the limiting slide rod is used for limiting the anchor injection assembly to rotate.

In some embodiments, the limiting sliding rods and the limiting holes are in one-to-one correspondence, and the limiting sliding rods are distributed around the liquid injection piece at intervals.

In some embodiments, the liquid injection device further includes a third limiting member, the third limiting member is disposed on the box base, the third limiting member and the liquid injection member are respectively located on two sides of the liquid distribution member in the length direction of the first rotating shaft, one end of the limiting slide rod is connected to the box base, and the other end of the limiting slide rod is connected to the third limiting member.

In some embodiments, the driving member is a hydraulic motor, the transmission assembly includes a first gear and a second gear that are engaged with each other, the first gear is sleeved on an output shaft of the hydraulic motor, and the second gear is sleeved on the first rotating shaft.

Drawings

Fig. 1 is a schematic view of a multi-purpose drill box for bolting according to an embodiment of the present invention.

Fig. 2 is a front view of a multi-purpose drill box for bolting according to an embodiment of the present invention.

Fig. 3 is a schematic top view of the multifunctional drill box for bolting according to the embodiment of the present invention, when the internal and external threads are completely engaged.

Fig. 4 is a schematic sectional view showing the multi-purpose drill box for bolting according to the embodiment of the present invention when the internal and external threads are completely engaged.

Fig. 5 is a schematic top view of a multifunctional drill box for bolting according to an embodiment of the present invention, when the internal thread and the external thread are not completely engaged.

Fig. 6 is a schematic sectional view illustrating a state where the internal thread and the external thread of the multifunctional drill box for bolting of the embodiment of the present invention are not completely engaged.

Fig. 7 is a schematic view of a check assembly of a multi-purpose drill box for bolting according to an embodiment of the present invention.

Reference numerals:

a box base 1, a limit slide bar 11, a third limit piece 12,

A first rotating shaft 2, a first through hole 21,

A second rotating shaft 3, a second through hole 31, a first limiting member 32, a second limiting member 33,

An anchoring component 4, a liquid distributing component 41, a liquid injecting component 42, a fluid channel 43,

A driving member 5,

A transmission assembly 6, a first gear 61, a second gear 62,

The check assembly 7, the valve body 71, the fixing portion 711, the magnetic valve element 72, the blocking portion 721, the stopper portion 722, the magnetic material 73, the magnet mounting seat 731, and the magnet 732.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A multifunctional drill box for bolting according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 7, a multi-functional drill box for bolting according to an embodiment of the present invention includes: the box base 1, first pivot 2, second pivot 3, anchor annotate subassembly 4, a plurality of non return subassembly 7, driving piece 5 and transmission assembly 6.

The first rotating shaft 2 is rotatably disposed on the box base 1, and the first rotating shaft 2 is provided with a first through hole 21 extending along the length direction of the first rotating shaft 2. At least a portion of the second shaft 3 is fitted in the first through hole 21, the second shaft 3 is movable along the length direction of the first shaft 2, and the second shaft 3 is provided with a second through hole 31 extending along the length direction of the second shaft 3. The anchor grouting component 4 is slidably arranged on the box base 1, the anchor grouting component 4 penetrates through the second through hole 31, the anchor grouting component 4 is rotatably connected with the second rotating shaft 3, and a plurality of fluid channels 43 which are respectively communicated with the first through hole 21 are arranged on the anchor grouting component 4. The check assemblies 7 correspond to the fluid passages 43 one by one, the check assemblies 7 are arranged in the fluid passages 43, and the check assemblies 7 are used for enabling liquid to flow only in the direction of the fluid passages 43 towards the first through holes 21. The driving member 5 is disposed on the box base 1, and the driving member 5 is connected to the first rotating shaft 2 through the transmission assembly 6 to drive the first rotating shaft 2 to rotate.

Wherein, as shown in fig. 1, the box base 1 is L-shaped, the box base 1 includes a horizontal section and a vertical section, the front end of the horizontal section of the box base 1 is connected with the lower end of the vertical section of the box base 1, and the vertical section of the box base 1 has an accommodating cavity therein.

Optionally, as shown in fig. 1 to 6, the first rotating shaft 2 is disposed along a front-back direction, a rotating hole extending along the front-back direction is disposed on a vertical section of the box base 1, so that the first rotating shaft 2 penetrates through the rotating hole and is rotatably connected with the vertical section of the box base 1, the first rotating shaft 2 rotates around a central axis of the first rotating shaft 2, and a first through hole 21 extending along the front-back direction is disposed on the first rotating shaft 2.

It will be appreciated that the first shaft 2 is adapted to be connected to a hollow rock bolt or drill rod (not shown) for use in construction to perform a drilling operation. For example, as shown in fig. 1 and 6, a hollow anchor may be inserted into the first through hole 21 from the front side of the first rotating shaft 2.

Alternatively, as shown in fig. 1 to 6, the second rotating shaft 3 is disposed in the front-rear direction, and the central axis of the second rotating shaft 3 is coaxial with the central axis of the first rotating shaft 2. At least a part of the second rotating shaft 3 is movably fitted in the first through hole 21 of the first rotating shaft 2 in the front-rear direction, and the second rotating shaft 3 is inserted into the first through hole 21 from the rear side of the first rotating shaft 2. The second shaft 3 is provided with a second through hole 31 extending in the front-rear direction, the central axis of the second through hole 31 is coaxial with the central axis of the first through hole 21, and the front end of the second through hole 31 is communicated with the first through hole 21.

Alternatively, as shown in fig. 1 to 6, the anchor assembly 4 extends through the second through hole 31 in the front-rear direction so that the front end of the anchor assembly 4 is located in the first through hole 21, thereby communicating the outlet of the fluid passage 43 of the anchor assembly 4 with the first through hole 21. The inlets of the plurality of fluid channels 43 on the anchor injection assembly 4 correspond to a plurality of media sources one-to-one, the media sources include water sources, anchoring agents and the like, and the anchoring agents include one of resin anchoring agents, pumpable organic anchoring agents or cement anchoring agents.

It can be understood that, by the one-to-one correspondence of the plurality of fluid passages 43 and the plurality of media sources, the plurality of fluid passages 43 can provide media according to the requirements of actual working conditions. For example, during drilling, one fluid passage 43 delivers water to the rock bolt to clear away the coal slag produced during drilling, during bolting, the water supply is shut off, and the other fluid passage 43 supplies anchoring agent to the rock bolt to anchor the rock bolt and surrounding rock together.

Further, as shown in fig. 1 to 6, the anchor component 4 is slidably disposed on the box base 1 along the front-back direction, and the second rotating shaft 3 is rotatably connected to the anchor component 4, so that the anchor component 4 can be driven to move along the front-back direction during the process that the second rotating shaft 3 moves along the front-back direction. Moreover, the second rotating shaft 3 can rotate relative to the anchoring component 4, so that the anchoring component 4 is prevented from being driven to rotate in the rotating process of the first rotating shaft 2, the fluid channel 43 does not need to rotate along with the first rotating shaft 2, and the fluid channel 43 is suitable for conveying fluid media which are easy to react and dissipate easily. The second shaft 3 thus serves as a bearing between the first shaft 2 and the anchor assembly 4.

Furthermore, it will be appreciated by those skilled in the art that the bolt hole is drilled in a direction opposite to the direction in which the bolt hole is pre-tightened after completion. For example, if the first rotating shaft 2 rotates forward, the anchor rod is driven to perform drilling operation. After the drilling and anchoring of the anchor rod are completed, the first rotating shaft 2 rotates reversely to drive the anchor rod to perform pre-tightening operation. And, at pretension in-process, the part that is located first through-hole 21 of stock can be to the direction removal of being close to anchor notes subassembly 4, for avoiding anchor notes subassembly 4 to cause the interference to it, second pivot 3 removes this moment to drive anchor notes subassembly 4 and keep away from the stock, and then guarantee the normal implementation of pretension operation.

And, as shown in fig. 4 and 7, the check assembly 7 is located at the front of the fluid passage 43, the check assembly 7 is used for enabling the liquid to flow only in the direction from back to front, and the check assembly 7 is arranged to avoid the liquid backflow in the anchoring process, so that the supporting efficiency of the anchor bolt supporting construction is improved.

Optionally, as shown in fig. 1 to 6, the driving member 5 is disposed on the box base 1, the transmission assembly 6 is disposed in the accommodating cavity of the box base 1, an input end of the transmission assembly 6 is connected to the driving member 5, and an output end of the transmission assembly 6 is connected to the first rotating shaft 2, so that after the driving member 5 is started, the first rotating shaft 2 is driven to rotate by a transmission effect of the transmission assembly 6.

For example, the driving member 5 is a hydraulic motor, a cylinder, a hydraulic cylinder or an internal combustion engine, and the transmission assembly 6 is one or a combination of a gear transmission mechanism, a pulley transmission mechanism, a screw transmission mechanism, a connecting rod transmission mechanism, a worm and gear transmission mechanism, a sprocket transmission mechanism or a rope pulley transmission mechanism.

Therefore, in the multifunctional drill box for bolting of the embodiment of the invention, the driving piece 5 drives the first rotating shaft 2 to rotate through the transmission assembly 6, so as to realize construction operation of bolting and pre-tightening. The fluid medium is delivered to the rock bolt through the fluid passage 43 of the anchor injection assembly 4 to effect the anchoring operation of the rock bolt. Moreover, the second rotating shaft 3 drives the anchor injection assembly 4 to move, so that the condition that the anchor injection assembly 4 interferes with an anchor rod in the anchoring process is avoided, the second rotating shaft 3 can rotate relative to the anchor injection assembly 4, the fluid channel 43 is further prevented from rotating relative to the surrounding environment in the working process, and the fluid channel 43 is suitable for conveying fluid media which are easy to react and dissipate easily.

In some embodiments, as shown in fig. 3 to 6, the first through hole 21 includes an anchor rod section 211 and an avoiding section 212, an internal thread is provided in the avoiding section 212, an external thread matching the internal thread is provided on an outer peripheral wall of the second rotating shaft 3, and the second rotating shaft 3 located in the avoiding section 212 is connected to the avoiding section 212 through a thread.

It can be understood that the rotation direction of the first rotating shaft 2 is the rotation direction of the drilling hole, when the threads of the first rotating shaft 2 and the second rotating shaft 3 are not completely engaged, the first rotating shaft 2 drives the second rotating shaft 3 to translate towards the direction close to the anchor rod relative to the box base 1, and after the threads are completely engaged, the second rotating shaft 3 rotates relative to the box base 1. The rotating direction of the first rotating shaft 2 is a pre-tightening rotating direction, and the second rotating shaft 3 translates relative to the box base 1 in a direction far away from the anchor rod.

Alternatively, as shown in fig. 3 to 6, the first through hole 21 includes a bolt section 211 and a bypass section 212 which are communicated with each other, the bolt section 211 is located at the front side of the bypass section 212, and the rear end of the bolt section 211 is connected to the front end of the bypass section 212. The anchor rod is inserted into the first through hole 21 from the front end of the anchor rod section 211, and the anchor injection assembly 4 is inserted into the first through hole 21 from the rear end of the avoidance section 212.

Alternatively, as shown in fig. 3 to 6, the external thread of the second rotating shaft 3 is located at the front end of the second rotating shaft 3, the internal thread of the first rotating shaft 2 is engaged with the external thread of the second rotating shaft 3, and under the effect of the thread pair, when the first rotating shaft 2 and the second rotating shaft 3 rotate relatively, the second rotating shaft 3 moves in the front-back direction relative to the first rotating shaft 2. And, the friction between the internal thread of the first rotating shaft 2 and the external thread of the second rotating shaft 3 is much smaller than the friction between the second rotating shaft 3 and the anchor injection component 4, so as to ensure that when the internal thread and the external thread are not completely engaged, the first rotating shaft 2 rotates and drives the second rotating shaft 3 to move along the front-back direction, and thus drives the anchor injection component 4 to move along the front-back direction.

For example, as shown in fig. 3 and 4, the internal thread of the first rotating shaft 2 is in a complete engagement with the external thread of the second rotating shaft 3. In this state:

if first pivot 2 corotation, because internal thread and external screw thread complete meshing, second pivot 3 can not be forward motion relative to first pivot 2, therefore first pivot 2 drives second pivot 3 synchronous revolution, can carry out the drilling operation of stock. And, because the second rotating shaft 3 is rotatably connected with the anchoring component 4, the anchoring component 4 is prevented from rotating.

If the first rotating shaft 2 rotates reversely, the second rotating shaft 3 can move backwards relative to the first rotating shaft 2, and the friction force of the threads between the first rotating shaft 2 and the second rotating shaft 3 is smaller than the friction force of the threads between the second rotating shaft 3 and the anchor rod assembly 4, so that the first rotating shaft 2 drives the second rotating shaft 3 to move backwards, the anchor rod assembly 4 is driven to move backwards, and the pre-tightening operation of the anchor rod can be performed.

Therefore, the first rotating shaft 2 rotates forwards and drives the anchor rod to perform drilling operation, and the first rotating shaft 2 rotates backwards and drives the anchor rod to perform pre-tightening operation. And, first pivot 2 reversal, first pivot 2 drives anchor and annotates subassembly 4 rearward movement simultaneously, avoids anchor to annotate the pretension of subassembly 4 to the stock and causes the interference.

Similarly, as shown in fig. 5 and fig. 6, the internal thread of the first rotating shaft 2 and the external thread of the second rotating shaft 3 are in an incompletely meshed state, at this time, the first rotating shaft 2 rotates forward, the first rotating shaft 2 drives the second rotating shaft 3 to move forward, so as to drive the anchor component 4 to move forward, until the internal thread and the external thread are completely meshed, and the anchor component 4 stops moving forward.

Furthermore, the distance between the anchor rod in the first through hole 21 and the anchor injection assembly 4 is infinitely close, and under the condition of avoiding the contact of the anchor rod and the anchor injection assembly 4, the gap between the anchor rod and the anchor injection assembly is ensured to be small, so that the fluid medium conveyed by the anchor injection assembly 4 is prevented from entering the first through hole 21 in a large quantity. And, according to operating condition, the pitch of internal thread and external screw thread need be more than or equal to the pitch of the afterbody screw thread of construction stock, avoids pretension in-process anchor notes subassembly 4 to cause the interference to the stock.

In some embodiments, as shown in fig. 1-6, the anchor assembly 4 includes a fluid distribution member 41 and a fluid injection member 42. The liquid distribution part 41 is slidably arranged on the box seat 1 along the length direction of the first rotating shaft 2, the liquid injection part 42 is columnar, the first end of the liquid injection part 42 is connected with the liquid distribution part 41, the liquid injection part 42 penetrates through the second through hole 31, the second rotating shaft 3 is rotatably connected with the liquid injection part 42, and the fluid channel 43 is arranged on the liquid distribution part 41 and the liquid injection part 42.

Alternatively, as shown in fig. 1 to 6, the liquid distribution member 41 has a square body shape, and the liquid distribution member 41 is located at the rear side of the first rotating shaft 2 and the second rotating shaft 3. The rear end of the liquid injection part 42 is fixedly connected with the front end face of the liquid distribution part 41, so that in the process that the second rotating shaft 3 moves along the front-back direction, the second rotating shaft 3 drives the liquid injection part 42 and the liquid distribution part 41 to move along the front-back direction together.

Further, as shown in fig. 1 to 6, the injection member 42 penetrates the avoiding section 212 of the first through hole 21, and the second end (front end) of the injection member 42 is located in the anchor rod section 211, so that the work of delivering the fluid medium into the anchor rod (i.e., the anchoring work) by the anchor injection assembly 4 is performed in the anchor rod section 211.

Optionally, the fluid channel 43 includes a vertical channel provided on the liquid distribution member 41 and a transverse channel provided on the liquid injection member 42, and an upper end of the vertical channel is a medium inlet and is located on an upper end surface of the liquid distribution member 41. The transverse channel extends along the front-back direction, the lower end of the vertical channel is communicated with the rear end of the transverse channel, and the front end of the transverse channel is a medium outlet and is positioned on the front end face of the liquid injection piece 42.

In some embodiments, as shown in fig. 7, check assembly 7 includes a valve body 71, a magnetic valve element 72, and a magnetic element 73, wherein magnetic valve element 72 and magnetic element 73 are disposed in valve body 71, magnetic valve element 72 is changeable between a first position and a second position, and when magnetic valve element 72 is in the first position, magnetic valve element 72 is attracted to magnetic element 73 to block the fluid passage; when the magnetic valve element 72 is located at the second position, the magnetic valve element 72 is separated from the magnetic member 73 to open the fluid passage.

It can be understood that, during the operation of the bolting construction equipment, when the fluid flows along the fluid passage 43 toward the first through hole 21, the pressure of the fluid overcomes the magnetic force of the magnetic spool 72 and the magnetic member 73 and then flushes the magnetic spool 72 and the magnetic member 73, thereby making the fluid passage 43 conductive. When no liquid flows through the fluid channel 43 or the liquid flows in the reverse direction, the fluid channel 43 can be closed due to the limiting effect of the magnetic valve core 72 and the magnetic element 73, so as to avoid the backflow of the liquid.

In some embodiments, as shown in fig. 7, the inner circumferential wall of the valve body 71 has an annular fixing portion 711, the magnetic member 73 is provided on the fixing portion 711, and the magnetic valve element 72 passes through the fixing portion 711. Alternatively, the magnetic member 73 includes a magnet mounting seat 731 and a magnet 732, the magnet mounting seat 731 and the magnet 732 are both ring-shaped structures, the magnet mounting seat 731 is disposed on the fixing portion 711, and the magnet 732 is disposed on the magnet mounting seat 731.

The magnetic valve element 72 has a blocking portion 721 and a stopper portion 722, the blocking portion 721 is connected to the stopper portion 722, and the stopper portion 722 is used to restrict the magnetic valve element 72 from being separated from the valve body 71, in other words, the stopper portion 722 can restrict the moving range of the magnetic valve element 72 in the axial direction of the valve body 71.

When the magnetic valve core 72 is located at the first position, the blocking portion 721 is absorbed on the magnetic member 73, so that the magnetic valve core 72 and the magnetic member 73 form a circular line seal, thereby further avoiding the liquid backflow phenomenon during bolting construction.

In some embodiments, as shown in fig. 4 or fig. 6, the injection device further includes a first limiting member 32 and a second limiting member 33, the first limiting member 32 and the second limiting member 33 are respectively disposed in the second through hole 31, and the first limiting member 32 and the second limiting member 33 are respectively configured to limit the displacement of the injection member 42 in the length direction of the first rotating shaft 2.

Alternatively, as shown in fig. 4 or fig. 6, the injection member 42 includes a first section, a second section and a third section which are connected in sequence from front to back, and the diameter of the first section and the third section is smaller than that of the second section. The first stopper 32 is provided on the front side of the second section to restrict the forward movement of the injection member 42, and the second stopper 33 is provided on the rear side of the second section to restrict the rearward movement of the injection member 42.

Specifically, the first limiting member 32 and the second limiting member 33 are bearings. As shown in fig. 4 or fig. 6, the first limiting member 32 and the second limiting member 33 are sleeved on the liquid injection member 42, and a step and a protrusion for fixing the first limiting member 32 and the second limiting member 33 are provided in the second through hole 31, so as to realize the rotatable connection between the second rotating shaft 3 and the liquid injection member 42.

In some embodiments, as shown in fig. 1, the anchor injection assembly further includes a limiting slide bar 11, the limiting slide bar 11 is disposed on the box base 1, a length direction of the limiting slide bar 11 is consistent with a length direction of the first rotating shaft 2, a limiting hole is disposed on the liquid distribution member 41, the limiting slide bar 11 penetrates through the limiting hole, and the limiting slide bar 11 is used for limiting the rotation of the anchor injection assembly 4.

Alternatively, as shown in fig. 1, the central axis of the limiting hole is not coaxial with the central axis of the first rotating shaft 2, the limiting slide rod 11 is arranged in the front-rear direction, and the limiting hole extends in the front-rear direction. The limiting slide rod 11 penetrates through the limiting hole, so that the liquid distribution piece 41 can slide along the length direction of the limiting slide rod 11 and plays a role in limiting the rotation of the liquid distribution piece 41.

In some embodiments, as shown in fig. 1, the limiting slide rods 11 and the limiting holes are multiple and correspond to each other one by one, and the limiting slide rods 11 are distributed around the injection member 42 at intervals.

Specifically, as shown in fig. 1, the number of the limiting slide rods 11 and the four limiting holes are four, and the four limiting holes are respectively located at four corners of the liquid distribution member 41. And, four spacing slide bars 11 still play the effect of supporting anchor subassembly 4.

In some embodiments, as shown in fig. 1, the liquid injection device further includes a third limiting member 12, the third limiting member 12 is disposed on the box base 1, the third limiting member 12 and the liquid injection member 42 are respectively located at two sides of the liquid distribution member 41 in the length direction of the first rotating shaft 2, one end of the limiting slide rod 11 is connected to the box base 1, and the other end of the limiting slide rod 11 is connected to the third limiting member 12.

Optionally, as shown in fig. 1, the third limiting member 12 is located at the rear side of the liquid distribution member 41, the front end of the limiting slide rod 11 is connected to the vertical section of the tank base 1, and the rear end of the limiting slide rod 11 is connected to the third limiting member 12. It will be appreciated that the third stop 12 serves to prevent the anchor assembly 4 from falling out of the stop slide 11.

In some embodiments, the driving member 5 is a hydraulic motor, and the transmission assembly 6 includes a first gear 61 and a second gear 62 engaged with each other, the first gear 61 is disposed on an output shaft of the hydraulic motor, and the second gear 62 is disposed on the first rotating shaft 2.

Alternatively, as shown in fig. 1 to 6, the driving member 5 is located on the left side of the first rotating shaft 2, and the first gear 61 and the second gear 62 are both located in the accommodating cavity of the vertical section of the box base 1. It will be appreciated that the output shaft of the hydraulic motor rotates in a forward direction to drive the first gear 61 in a forward direction, and thus the second gear 62 in a reverse direction to drive the first shaft 2 in a reverse direction. Similarly, the output shaft of the hydraulic motor rotates reversely to drive the first gear 61 to rotate reversely, so as to drive the second gear 62 to rotate forwardly, and further drive the first rotating shaft 2 to rotate forwardly.

In summary, the multifunctional drill box for bolting according to the embodiment of the present invention has the following movement characteristics:

under the action of the first limiting part 32 and the first limiting part 32, the anchoring component 4 can only rotate relative to the second rotating shaft 3 and cannot translate relative to the second rotating shaft 3 in the length direction of the second rotating shaft 3. That is, when the second rotating shaft 3 translates relative to the surrounding environment, the second rotating shaft 3 drives the anchor assembly 4 to translate together. When the second rotating shaft 3 rotates relative to the surrounding environment, the anchor grouting component 4 is static relative to the surrounding environment under the action of the limiting slide rod 11.

During the drilling phase, the first rotary shaft 2 is driven by the drive element 5 and the transmission assembly 6 to perform a rotary motion, so that the anchor adapter 7 is driven to transmit power to the anchor for drilling. In the process, the internal thread and the external thread are completely meshed, the first rotating shaft 2 drives the second rotating shaft 3 to do forward rotating motion together, and according to the motion characteristics, the anchoring component 4 does not rotate together with the second rotating shaft 3, but is stationary relative to the surrounding environment, namely the fluid channel 43 is stationary relative to the surrounding environment. If the internal thread and the external thread are not completely meshed, under the action of the thread pair, the first rotating shaft 2 drives the second rotating shaft 3 to translate relative to the surrounding environment, the anchoring component 4 translates relative to the surrounding environment, until the threads are completely meshed, the second rotating shaft 3 synchronously rotates along with the first rotating shaft 2, and the anchoring component 4 is static relative to the surrounding environment. Therefore, the anchor assembly 4 does not rotate relative to the surrounding environment in the whole drilling process, and the fluid medium conveyed by the anchor assembly is not severely shaken.

During the bolting stage, an external source of media is delivered between the bolt and the surrounding rock through the fluid passage 43 to anchor the bolt and the surrounding rock.

In the pre-tightening stage, the threads are completely meshed initially, the first rotating shaft 2 rotates reversely, the first rotating shaft 2 drives the second rotating shaft 3 to translate relative to the surrounding environment under the action of the thread pair, a space is reserved for pre-tightening the anchor rod, the anchor rod is prevented from being extruded to the anchor rod component 4 during pre-tightening, and the threads are gradually changed from being completely meshed until the pre-tightening of the anchor rod is completed.

Therefore, the multifunctional drill box for supporting the anchor rod comprehensively realizes the functions of drilling, anchoring and pre-tightening in the anchor rod construction process by utilizing the driving piece 5, the transmission assembly 6, the first rotating shaft 2, the second rotating shaft 3 and the anchor injection assembly 4. When the drilling box drills, the fluid channel 43 does not need to do rotary motion all the time, compared with the drilling box in the related technology, the dynamic conveying of fluid can be realized without a plurality of sealing pieces and annular grooves, the fluid conveyed in the working process does not need to do rotary motion along with power output parts, and the drilling box is suitable for conveying fluid media which are easy to react and easy to volatilize and dissipate.

And the first rotating shaft 2 rotates around one direction under the driving of the driving part 5, so that the related anchor rod and the drill rod can be driven to realize the drilling operation, and the fluid channel 43 provides a way for conveying the anchoring material. When the first rotating shaft 2 rotates around the other direction, the pre-tightening of the anchor rod can be realized.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the above embodiments have been shown and described, it should be understood that they are exemplary and should not be construed as limiting the present invention, and that many changes, modifications, substitutions and alterations to the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A multifunctional drill box for bolting, comprising:

a box base;

the first rotating shaft is rotatably arranged on the box base and provided with a first through hole extending along the length direction of the first rotating shaft;

at least part of the second rotating shaft is matched in the first through hole, the second rotating shaft can move along the length direction of the first rotating shaft, and the second rotating shaft is provided with a second through hole extending along the length direction of the second rotating shaft;

the anchor grouting assembly is slidably arranged on the box base and penetrates through the second through hole, the anchor grouting assembly is rotatably connected with the second rotating shaft, and a plurality of fluid channels which are respectively communicated with the first through hole are arranged on the anchor grouting assembly;

the check assemblies correspond to the fluid channels one by one and are arranged in the fluid channels, and the check assemblies are used for enabling liquid to flow only along the direction of the fluid channels towards the first through holes;

the driving piece is arranged on the box seat, and the driving piece is connected with the first rotating shaft through the transmission component so as to drive the first rotating shaft to rotate.

2. The multifunctional drill box for the bolting of claim 1, wherein the first through hole comprises a bolt section and an avoiding section, an internal thread is arranged in the avoiding section, an external thread matched with the internal thread is arranged on the peripheral wall of the second rotating shaft, and the second rotating shaft in the avoiding section is in threaded connection with the avoiding section.

3. The multifunctional drill box for bolting according to claim 2, wherein said bolting and grouting assembly comprises a liquid distribution member and a liquid injection member, said liquid distribution member is slidably disposed on said box base along a length direction of said first rotating shaft, said liquid injection member is in a column shape, a first end of said liquid injection member is connected to said liquid distribution member, said liquid injection member penetrates said second through hole, said second rotating shaft is rotatably connected to said liquid injection member, and said fluid passage is disposed on said liquid distribution member and said liquid injection member.

4. The multifunctional drill box for bolting according to claim 1, wherein said check assembly comprises a valve body, a magnetic valve core and a magnetic member, said magnetic valve core and said magnetic member are disposed in said valve body, said magnetic valve core is changeable between a first position and a second position, and when said magnetic valve core is in the first position, said magnetic valve core is adsorbed on said magnetic member to block said fluid passage; when the magnetic valve core is located at the second position, the magnetic valve core is separated from the magnetic part so as to conduct the fluid channel.

5. The multifunctional drill box for anchor rod support according to claim 4, wherein the inner peripheral wall of the valve body has an annular fixing portion, the magnetic member is disposed on the fixing portion, the magnetic valve core passes through the fixing portion, the magnetic valve core has a plugging portion and a limiting portion, the plugging portion is connected to the limiting portion, the limiting portion is used for limiting the separation of the magnetic valve core from the valve body, and when the magnetic valve core is located at the first position, the plugging portion is adsorbed on the magnetic member.

6. The multifunctional drill box for bolting according to claim 3, further comprising a first limiting member and a second limiting member, wherein said first limiting member and said second limiting member are respectively disposed in said second through hole, and said first limiting member and said second limiting member are respectively used for limiting displacement of said injection member in the length direction of said first rotation shaft.

7. The multifunctional drill box for anchor bolt support of claim 6, further comprising a limiting slide bar, wherein the limiting slide bar is arranged on the box base, the length direction of the limiting slide bar is consistent with the length direction of the first rotating shaft, a limiting hole is arranged on the liquid distribution piece, the limiting slide bar penetrates through the limiting hole, and the limiting slide bar is used for limiting the rotation of the anchor injection assembly.

8. The multifunctional drill box for bolting according to claim 7, wherein said limiting slide bars and said limiting holes are all a plurality of and in one-to-one correspondence, and said plurality of limiting slide bars are distributed at intervals around said liquid injection member.

9. The multifunctional drill box for bolting according to claim 8, further comprising a third limiting member, said third limiting member being disposed on said box base, said third limiting member and said injection member being respectively disposed on two sides of said liquid distribution member in a length direction of said first rotation axis, one end of said limiting slide rod being connected to said box base, and the other end of said limiting slide rod being connected to said third limiting member.

10. The multifunctional drill box for bolting according to claim 1, wherein said driving member is a hydraulic motor, said transmission assembly comprises a first gear and a second gear engaged with each other, said first gear is sleeved on an output shaft of said hydraulic motor, and said second gear is sleeved on said first rotating shaft.

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