CN212958687U - Hydraulic anchor rod drill carriage and propelling beam thereof - Google Patents

Abstract

The invention discloses a hydraulic anchor rod drill carriage and a propelling beam thereof, wherein the propelling beam comprises a drilling rock drill, an anchor rod rock drill, a propelling oil cylinder, a bracket, a fixed beam fixedly arranged on the bracket and a rotating beam rotatably arranged on the bracket, the fixed beam and the rotating beam are distributed in parallel, the drilling rock drill and the anchor rod rock drill are respectively positioned at two opposite sides of the rotating beam, and the rotating beam is driven by a switching oil cylinder and rotates by taking the fixed beam as a central shaft; so that the drilling rock drill is positioned at a drillable position during drilling, or the anchor rod rock drill is positioned at a drillable position during anchoring; in the drilling and anchoring processes, the top end of the fixed beam always abuts against a roadway top plate to be anchored and is fixed; adopt rotatory mode to switch drilling rock drill and anchor rock drill through this technical scheme for bore anchor switching speed obtains obviously promoting, and then work efficiency is showing and is promoting.

Description

Hydraulic anchor rod drill carriage and propelling beam thereof

Technical Field

The invention relates to the technical field of mine and tunnel engineering machinery, in particular to a hydraulic anchor rod drill carriage and a push beam thereof.

Background

The underground support (roadway support) is mainly used for easing and reducing the movement of surrounding rocks, so that the section of a roadway is not excessively reduced, and scattered and damaged surrounding rocks are prevented from falling; generally, in order to make the roadway support play a positive role in regulating and controlling the deformation of the surrounding rock, the support should be installed before the surrounding rock is loosened and damaged, so that the support and the surrounding rock play a bearing role together under the condition that the surrounding rock still keeps self-bearing force.

Taking anchor bolt support as an example; drilling an anchor rod hole firstly in the process of anchor rod supporting, and then knocking in an anchor rod; in the early stage of anchor rod support, an air-leg rock drill is often adopted to manually drill holes, and then an anchor rod is manually installed; the scheme has the advantages of high working strength, low operating efficiency, low supporting quality and low safety factor; therefore, the anchor rod drill carriage can be quickly replaced by the double-drill-arm anchor rod drill carriage, when the double-drill-arm anchor rod drill carriage works, a drill arm is used for drilling, and the anchor rod is installed on the other drill arm; the technical problems of low initial safety factor and the like are solved; however, because the scheme needs two sets of drill boom control systems, the operation is complex, and the two drill booms are independent from each other, the hole alignment is difficult in the process of installing the anchor rod by the other drill boom after the drilling is finished; namely, the technical problems of high initial working strength, low working efficiency, low support quality and the like still exist.

The existing anchor support usually adopts a single drill boom anchor rod drill carriage, namely, a push beam pushes a sliding plate to be respectively provided with a drill hole and an anchor rod rock drill, and the sliding plate is translated to switch the drill/anchor rock drill to drill the hole and install the anchor rod; or only one rock drill is installed, and the purposes of drilling and installing the anchor rod are achieved by switching the drill rod and the anchor rod; the hydraulic anchor rod trolley disclosed in the Chinese patent publication No. CN209539352U achieves the purposes of drilling and installing anchor rods by switching drill rods and anchor rods;

they have the following disadvantages:

1) although the drilling and anchoring switching speed is improved to a certain extent compared with the original anchor rod supporting scheme, the method still has a room for improvement;

2) for the anchor rod drill carriage adopting the double rock drills, two sets of propulsion systems are often adopted, so that a propulsion beam is heavy and complex to operate.

Disclosure of Invention

In order to solve the first technical problem, the present invention aims to overcome the disadvantages of the prior art, and provides a hydraulic rock-bolt drilling rig and a feed beam thereof, in which the switching rate of a drilling rock drill and a rock-bolt rock drill is obviously increased, so that the work efficiency of anchoring is obviously improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a feed beam including a drill rock drill and a rockbolt drill, and a feed cylinder for driving the drill rock drill axially for drilling operations and the rockbolt drill axially for anchoring operations, the improvement wherein

The propelling beam also comprises a bracket, a fixed beam fixedly arranged on the bracket and a rotating beam rotatably arranged on the bracket, the fixed beam and the rotating beam are distributed in parallel, the drilling rock drill and the anchor rod rock drill are respectively positioned at two opposite sides of the rotating beam, and the rotating beam is driven by the switching oil cylinder and rotates by taking the fixed beam as a central shaft; so that the drilling rock drill is positioned at a drillable position during drilling, or the anchor rod rock drill is positioned at a drillable position during anchoring;

and in the drilling and anchoring processes, the top end of the fixed beam always leans against the roadway top plate to be anchored and is fixed.

Preferably, the top end of the fixed beam is provided with a top disc, and a plurality of protruding parts are distributed on the upper surface of the top disc, so that the fixed beam can stably lean against a roadway top plate needing anchoring.

Preferably, the rotating beam is rotatably installed on the fixed beam through at least two connecting pieces, one end of each connecting piece is rotatably sleeved on the fixed beam, and the other end of each connecting piece is fixedly connected with the rotating beam or integrally formed with the rotating beam.

Preferably, the propulsion cylinder completes propulsion and retraction of the drilling rock drill and the rock bolting rock drill through a steel wire rope or a chain.

Preferably, the number of the propulsion oil cylinders is two, in the drilling process, one propulsion oil cylinder drives the drilling rock drill to axially move so as to complete the drilling operation, and in the anchoring process, the other propulsion oil cylinder drives the anchor rod rock drill to axially move so as to complete the anchoring operation.

Preferably, the number of the propulsion oil cylinders is one, wherein in the drilling process, the propulsion oil cylinders only drive the drilling rock drill to axially move so as to complete the drilling operation, and in the anchoring process, the propulsion oil cylinders only drive the anchor rod rock drill to axially move so as to complete the anchoring operation.

Preferably, the rotating beam is also provided with a limiting interlocking device and an interlocking oil cylinder for pushing the limiting interlocking device to move transversely; the limiting and interlocking device is positioned between the drilling rock drill and the anchor rod rock drill;

wherein, in the drilling process, the interlocking oil cylinder enables the limiting interlocking device to be positioned at one side of the rock drilling machine of the anchor rod to limit the axial movement of the rock drilling machine of the anchor rod, in the anchoring process, the interlocking oil cylinder enables the limiting interlocking device to be positioned at one side of the rock drilling machine of the drill rod to limit the axial movement of the rock drilling machine of the drill rod,

preferably, the propulsion beam is further provided with an upper pulley block, a lower pulley block, a movable pulley block, a pull-back steel wire rope and a propulsion steel wire rope, the upper pulley block is fixed at the upper end of the propulsion beam, the lower pulley block is fixed at the lower end of the propulsion beam, the movable pulley block is installed at the middle section of the propulsion beam and is pushed by the propulsion oil cylinder to enable the movable pulley block to move up and down along the axial direction of the propulsion beam, one end of the pull-back steel wire rope is fixed at a position A on the drilling rock drill and sequentially passes around one pulley in the lower pulley block, one pulley in the movable pulley block and the other pulley in the lower pulley block, and the other end of the pull-back steel; one end of the propelling steel wire rope is fixed at a position C on the drilling rock drill, and sequentially bypasses one pulley in the upper pulley block, the other pulley in the movable pulley block and the other pulley in the upper pulley block, and the other end of the propelling steel wire rope is fixed at a position D on the anchor rod rock drill;

wherein, the position A and the position B are both positioned above the lower pulley block; and the position C and the position D are both positioned below the upper pulley block.

Preferably, the limiting interlocking device comprises a limiting seat and a limiting block, the limiting seat is fixedly connected with the rotating beam, a limiting groove is formed in the limiting seat, the limiting block is slidably mounted in the limiting groove and connected with the interlocking oil cylinder, limiting blocks are arranged at the left end and the right end of the limiting block, and the limiting blocks are fixedly connected with or integrally formed with the limiting block; when the interlocking oil cylinder pushes the limiting block to slide towards one side of the drilling and rock drilling machine and the limiting block on one side of the drilling and rock drilling machine is in contact with the drilling and rock drilling machine, the drilling and rock drilling machine can be limited from moving in the axial direction, and the limiting block on one side of the anchor rod rock drilling machine is not in contact with the anchor rod rock drilling machine any more; when the interlocking oil cylinder pushes the limiting block to slide towards one side of the anchor rod rock drill and enables the limiting block on one side of the anchor rod rock drill to be in contact with the anchor rod rock drill, the anchor rod rock drill can be limited from moving in the axial direction, and the limiting block on one side of the drilling rock drill is not in contact with the drilling rod rock drill any more.

A hydraulic rock bolt drill rig including a feed beam as described above.

The invention has the beneficial effects that:

1) the purpose that the drilling anchor switches is reached through the rotation of live-beams, compare in original further promotion that switches the drilling anchor through the translation slip the speed that the anchor switches, and at rotatory in-process, the top of fixed beam is leaned on all the time and is fixed on the tunnel roof that needs the anchor, the accuracy that the drilling anchor switches has been guaranteed, avoided rotatory switching in-process because whole car removes or the working arm removes or the propelling beam removes and leads to the unable accurate centre bore of aiming at fast after the anchor switches, and then make the rock drilling anchoring process more continuous, high production efficiency, economic benefits is better.

Drawings

FIG. 1 is a schematic view of a hydraulic rock bolt drill rig in accordance with one embodiment of the present invention;

FIG. 2 is a partial schematic view of FIG. 1 in accordance with the present invention;

FIG. 3 is a first schematic structural view of a feed beam according to a first embodiment of the present invention;

FIG. 4 is a second schematic structural view of a push beam according to a first embodiment of the present invention;

FIG. 5 is a third schematic structural view of a feed beam according to a first embodiment of the present invention;

FIG. 6 is a schematic view of a position-limiting interlock apparatus according to an embodiment of the present invention;

FIG. 7 is an exploded view of a positive lock device according to an embodiment of the present invention;

fig. 8 is a schematic view of an oil path of a feed beam according to an embodiment of the present invention.

Description of reference numerals: 1. an engineering chassis; 2. a working arm; 30. a support; 31. a fixed beam; 32. a turning beam; 33. switching the oil cylinders; 34. a drilling rock drill; 35. an anchor rock drill; 36. a limiting interlocking device; 37. a propulsion cylinder; 38. interlocking oil cylinders; 310. a top tray; 327. a connecting member; 21. a first large arm; 22. a second large arm; 23. lifting the swing oil cylinder; 24. a front lifting swing oil cylinder; 25. a first arm base; 26. a second arm base; 39. an anchor rod bin; 390. a motor; 391. an upper rod storage disc; 392. a lower rod storage disc; 393. a central shaft; 320. an upper pulley block; 321. a lower pulley block; 322. a movable pulley block; 323. position A; 324. position B; 325. position C; 326. a position D; 360. a limiting seat; 361. a limiting block; 362. a limiting groove; 363. a limiting member; 40. a reversing valve A; 41. and a reversing valve B.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present 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 one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified 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 connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the present invention, "upper", "lower", "front", "rear", "left" and "right" are based on the orientation of each component in fig. 1; wherein, the top plate on the fixed beam is positioned at the upper end, and the propelling beam is positioned in front of the vehicle body.

The first embodiment is as follows:

a hydraulic anchor drill rig as shown in fig. 1-5, comprising an engineering chassis 1, a working arm 2, a feed beam, an electrical system, a hydraulic system and a cab; the engineering chassis 1 is used for supporting a whole vehicle, the rigidity and the strength of the whole vehicle are guaranteed, the support legs of the engineering chassis 1 are transversely telescopic in front, the working stability of the whole vehicle can be guaranteed, an electric system and a hydraulic system are used for guaranteeing the normal work of the propelling beam and the working arm 2, and a cab is used for accommodating a driver and controlling the working arm 2 and the propelling beam by the driver to complete the underground supporting work; the propelling beam is arranged on the working arm 2 and is adjusted to be in a vertical state through the working arm 2; the improvement which is made is that;

the propulsion beam shown in fig. 2-5 comprises a bracket 30 mounted on the working arm 2, a fixed beam 31 fixedly mounted on the bracket 30, and a rotating beam 32 rotatably mounted on the bracket 30, wherein the fixed beam 31 and the rotating beam 32 are distributed in parallel, and the rotating beam 32 is driven by a switching oil cylinder 33 to rotate by taking the fixed beam 31 as a central shaft 393; the rotating beam 32 is also provided with a drilling rock drill 34, a rock bolt rock drill 35, a limiting interlocking device 36, a propulsion oil cylinder 37 for pushing the drilling rock drill 34 or the rock bolt rock drill 35 to move axially, and an interlocking oil cylinder 38 for pushing the limiting interlocking device 36 to move transversely; the drilling rock drill 34 and the bolting rock drill 35 are respectively located on opposite sides of the turning beam 32, and the limiting and interlocking device 36 is located between the drilling rock drill 34 and the bolting rock drill 35;

when drilling, the switching oil cylinder 33 drives the rotating beam 32 to rotate so that the drilling rock drill 34 is in a drilling position; the interlocking cylinder 38 drives the limiting interlocking device 36 to move to one side of the rock bolting machine 35 so that the rock bolting machine 35 is fixed; the propulsion cylinder 37 drives the drilling rock drill 34 to complete the drilling work; then the propulsion cylinder 37 drives the drilling rock drill 34 to return to the initial position;

when anchoring, the switching oil cylinder 33 drives the rotating beam 32 to rotate so that the rock bolting machine 35 is in a drilling position; the interlocking cylinder 38 drives the limit interlocking device 36 to move to one side of the drilling rock drill 34 so that the drilling rock drill 34 is fixed; the propulsion cylinder 37 drives the anchor rock drill 35 to complete the anchoring operation;

from the beginning of drilling to the end of anchoring, the top end of the fixed beam 31 always abuts against the roadway roof to be anchored and is fixed.

So set up, the purpose that the anchor that bores switches is reached through the rotation of live-beams 32, compare in original speed that the anchor that bores has further promoted that the anchor switches through translation slip, and at rotatory in-process, the top of fixed beam 31 is all the time leaned on fixed on the tunnel roof that needs the anchor, the accuracy that the anchor that bores switches has been guaranteed, avoided rotatory switching in-process because whole car removes or working arm 2 removes or push beam removes and leads to the unable accurate centre bore of aiming at fast after the anchor switches, and then make the rock drilling anchor process more continuous, high production efficiency, economic benefits is better.

In addition, the drilling rock drill 34 and the anchor rod rock drill 35 can be driven by the single propulsion oil cylinder 37, the operation is simple and convenient, the cost of the whole vehicle can be effectively reduced, and the further popularization of underground support mechanization is facilitated.

In this embodiment, as shown in fig. 2, the bracket 30 is rotatably mounted on the working arm 2, the top end of the fixed beam 31 is provided with a top plate 310, and a plurality of protrusions are distributed on the upper surface of the top plate 310 so that the fixed beam 31 can stably abut against the roadway roof to be anchored; preferably, the fixed beam 31 is driven by the working arm 2 to abut against the top plate of the roadway, or the fixed beam 31 is a telescopic beam and is driven by an oil cylinder to abut against the top plate of the roadway; tilting or wobbling during drilling and bolting, as well as possible displacements during switching of the drill rod rock drill and rock bolt drill 35, is further prevented by the top plate 310.

In this embodiment, when the switching cylinder 33 is at the maximum extension position, the drilling rock drill 34 is at the drilling position; when the switching cylinder 33 is fully retracted, the rockbolt drill 35 is in a drilling position;

or; when the switching oil cylinder 33 is located at the maximum extending position, the anchor rod rock drill 35 is located at a drilling position; when the switching cylinder 33 is fully retracted, the drilling rock drill 34 is in the drilling position.

It is worth mentioning that the above two positions of the switching cylinder 33 are only two preferred ways, i.e. the drilling rock drill 34 and/or the rock bolting machine 35 can be in a drilling position when the switching cylinder 33 is in other positions.

In the present embodiment; the rotating beam 32 is rotatably mounted on the fixed beam 31 through at least two connecting pieces 327, one end of each connecting piece 327 is rotatably sleeved on the fixed beam 31, and the other end of each connecting piece 327 is fixedly connected with or integrally formed with the rotating beam 32.

In the present embodiment, the structure of the working arm 2 can refer to the working arm 2 referred to in publication nos. CN209539352U, CN210141141U, CN108868841A, CN 108756965A; generally, as shown in fig. 1 and 2, the working arm 2 comprises a first large arm 21 and a second large arm 22, the rear end of the first large arm 21 is rotatably mounted on the engineering chassis 1, and a rear lifting swing cylinder 23 is provided to operate the first large arm 21 to rotate; the rear end of the second big arm 22 is fixedly connected with the first big arm 21, the front end of the second big arm 22 is hinged with the support 30, and a front lifting swing cylinder 24 is arranged to operate the push beam to rotate, further preferably, a first arm seat 25 and a second arm seat 26 are further arranged, the first arm seat 25 is fixedly arranged on the engineering chassis 1, the first big arm 21 is rotatably arranged on the first arm seat 25, the second arm seat 26 is fixedly arranged at the front end of the first big arm 21, the second big arm 22 is fixedly arranged on the second arm seat 26, one end of the rear lifting swing cylinder 23 is rotatably arranged on the first arm seat 25, the other end of the rear lifting swing cylinder 24 is hinged with the first big arm 21, one end of the front lifting swing cylinder 24 is rotatably arranged on the second arm seat 26, and the other end of the front lifting swing cylinder is hinged with the support 30; thus, the push beam can be sent to a specified position according to a specified angle.

In the present embodiment, as shown in fig. 5, a bolt storage 39 for storing bolts is further provided at one side of the rotating beam 32, and the structure of the bolt storage can refer to the bolt storage 39 referred to in the publication numbers CN209539352U, CN110173286A, CN108979688A, CN108222987A, CN 204238883U; generally, the anchor rod magazine 39 comprises a shield, a motor 390, an upper rod storage disk 391 and a lower rod storage disk 392, a central shaft 393 is connected between the upper rod storage disk 391 and the lower rod storage disk 392, a groove for accommodating a drill rod or an anchor rod is circumferentially arranged on the upper rod storage disk 391 and the lower rod storage disk 392, a plurality of guide wheels are circumferentially arranged on the upper rod storage disk 391 and the lower rod storage disk 392, and the guide wheels are positioned at one side of the groove. The anchor rod and the drill rod are pressed tightly. The drill rod can be taken out smoothly, and the drill rod is prevented from being abraded; the motor 390 drives the upper rod storage disc 391 and the lower rod storage disc 392 to swing; and mounts the bolt on the bolt rock drill 35 during the swinging. It is further preferred that the lower tray 392 be movable up and down on the central shaft 393 to accommodate bolt sizes of different lengths. By the arrangement, the screw-in anchor rod bin 39 is adopted, so that the rod accommodating capacity of the anchor rod bin 39 is greatly improved, frequent installation of anchor rods is avoided, the auxiliary working time is reduced, the efficiency is improved, the structure is compact, and the labor intensity of personnel is greatly reduced; and the safety of personnel is guaranteed.

In the present embodiment, as shown in fig. 4, the propulsion cylinder 37 performs propulsion and retraction of the drilling rock drill 34 and the bolting rock drill 35 through a wire rope; specifically, the turning beam 32 is further provided with an upper pulley block 320, a lower pulley block 321, a movable pulley block 322, a pull-back steel wire rope and a push steel wire rope, the upper pulley block 320 is fixed at the upper end of the turning beam 32, the lower pulley block 321 is fixed at the lower end of the turning beam 32, the movable pulley block 322 is installed at the middle section of the turning beam 32 and is pushed by a push oil cylinder 37 to enable the movable pulley block 322 to move up and down along the axial direction of the turning beam 32, one end of the pull-back steel wire rope is fixed on the drilling and rock drilling machine 34 and sequentially bypasses one pulley in the lower pulley block 321, one pulley in the movable pulley block 322 and the other pulley in the lower pulley block 321, and the other end of the pull-; one end of the propelling steel wire rope is fixed on the drilling rock drill 34 and sequentially passes through one pulley in the upper pulley block 320, the other pulley in the movable pulley block 322 and the other pulley in the upper pulley block 320, and the other end of the propelling steel wire rope is fixed on the rock drill 35.

Further preferably, one end of the pull-back wire rope is fixed at a position a323 on the drilling rock drill 34 and the other end is fixed at a position B324 on the bolting rock drill 35, wherein the position a323 and the position B324 are both located above the lower pulley block 321;

and one end of the propulsion line is fixed at a position C325 on the drilling rock drill 34 and the other end is fixed at a position D326 on the bolting rock drill 35, wherein both the position C325 and the position D326 are located below the upper pulley block 320.

With such arrangement, when the rockbolt drilling machine 35 is fixed, the propelling cylinder 37 pushes the movable pulley block 322 to ascend, under the combined action of the pull-back steel wire rope and the propelling steel wire rope, and due to the fixation of the rockbolt drilling machine 35, the pull-back steel wire rope and the propelling steel wire rope can only push the drilling rock drilling machine 34 to ascend, and when the propelling cylinder 37 pulls the movable pulley block 322 to descend, under the combined action of the pull-back steel wire rope and the propelling steel wire rope, the drilling rock drilling machine 34 descends; similarly, when the drill hammer 34 is stationary, the pull-back and push-in wires can only drive the bolt hammer 35 to move under the combined action of the pull-back and push-in wires and due to the stationary drill hammer 34.

It is worth mentioning that in other embodiments the propulsion cylinder 37 may also perform propulsion and retraction of the drilling rock drill 34 and the rock bolt drill 35 via a chain.

In this embodiment, as shown in fig. 6 and 7, the limiting interlocking device 36 includes a limiting seat 360 and a limiting block 361, the limiting seat 360 is fixedly connected to the rotating beam 32, a limiting groove 362 is disposed on the limiting seat 360, the limiting block 361 is slidably mounted in the limiting groove 362 and connected to the interlocking cylinder 38, limiting blocks 363 are disposed at both left and right ends of the limiting block 361, and the limiting blocks 363 and the limiting blocks 361 are fixedly connected or integrally formed; when the interlocking cylinder 38 pushes the limiting block 361 to slide towards the side of the drilling rock drill 34 and the limiting block 363 on the side of the drilling rock drill 34 is in contact with the drilling rock drill 34, the movement of the drilling rock drill 34 in the axial direction can be limited and the limiting block 363 on the side of the bolting rock drill 35 is no longer in contact with the bolting rock drill 35; when the interlocking cylinder 38 pushes the limiting block 361 to slide toward the rock bolt drilling machine 35 side and the limiting block 363 on the rock bolt drilling machine 35 side is in contact with the rock bolt drilling machine 35, the movement of the rock bolt drilling machine 35 in the axial direction can be limited and the limiting block 363 on the rock bolt drilling machine 34 side is no longer in contact with the rock bolt drilling machine; further preferably, the limiting member 363 is a bolt and fixed at two ends of the limiting member 361.

In the embodiment, when the switching cylinder 33 starts to drive the rotating beam 32 to rotate, the interlocking cylinder 38 simultaneously starts to drive the limit interlocking device 36 to move; when the rock drilling machine 34 is moved to the drilling position, the limiting and interlocking device 36 is also moved to one side of the rock bolting machine 35 to limit the axial movement of the rock bolting machine 35; alternatively, when the rock bolt drilling machine 35 is moved to the drilling position, the limit interlock 36 is also moved to the side of the rock bolt drilling machine 34 at the same time to limit the axial movement of the rock bolt drilling machine 34. Further preferably, a schematic diagram of oil paths related to the switching cylinder 33, the interlocking cylinder 38 and the thrust cylinder 37 is shown in fig. 8, and a connected reversing valve a40 and a reversing valve B41 are further provided, wherein a large cavity of the switching cylinder 33 is communicated with a small cavity of the interlocking cylinder 38, a small cavity of the switching cylinder 33 is communicated with a large cavity of the interlocking cylinder 38, and two oil ports of the reversing valve a40 are respectively communicated with the large cavity and the small cavity of the switching cylinder 33 or the interlocking cylinder 38; two oil ports of the reversing valve B41 are respectively communicated with a large cavity and a small cavity of the propulsion oil cylinder 37; the arrangement makes the switching cylinder 33 and the interlocking cylinder 38 always in a synchronous motion state, and the propulsion cylinder 37 starts to drive the drill rod rock drill or the rock bolt rock drill 35 to move after the switching cylinder 33 and the interlocking cylinder 38 finish the actions, so that the operation process becomes very simple and fast.

It is worth mentioning that in other embodiments, the interlock cylinder 38 and the switch cylinder 33 may also not move simultaneously, still allowing switching and interlocking of the drilling rock drill 34 and the bolting rock drill 35; but relatively speaking, the working time is slightly prolonged and a reversing valve is also added.

In this embodiment, the concrete working process of the hydraulic anchor drill rig for underground support is as follows:

1) the driver operates the working arm 2 to enable the propelling beam to be located at a specified position according to a specified angle, and the top plate 310 on the fixed beam 31 abuts against a roadway top plate needing anchoring, and at the moment, the drilling rock drill 34 is located at a drilling position and the rock bolting machine 35 is in a fixed state;

2) and drilling: the propelling oil cylinder 37 drives the movable pulley block 322 to ascend, and drives the drilling rock drill 34 to ascend by pulling back the steel wire rope and propelling the steel wire rope so as to complete drilling work; after drilling is finished, the propelling oil cylinder 37 drives the movable pulley block 322 to descend, and the drilling rock drill 34 is driven to descend to the initial position by pulling back the steel wire rope and propelling the steel wire rope;

3) and an anchoring process: the switching cylinder 33 and the interlocking cylinder 38 work simultaneously, wherein the piston rod of the switching cylinder 33 extends to the maximum value to drive the rotating beam 32 to rotate around the fixed beam 31 and to enable the rockbolt drilling machine 35 to be in a drilling position, and simultaneously the piston rod of the interlocking cylinder 38 extends to the maximum value to drive the limiting block 361 to move transversely in the limiting groove 362 and enable the rockbolt drilling machine 34 to be fixed; then the propelling oil cylinder 37 drives the movable pulley block 322 to ascend, and drives the anchor rod rock drill 35 to ascend by pulling back the steel wire rope and propelling the steel wire rope so as to finish anchoring work;

4) after anchoring is finished, the propelling oil cylinder 37 drives the movable pulley block 322 to descend, and the anchor rod rock drill 35 is driven to descend to the initial position by pulling back the steel wire rope and propelling the steel wire rope; then the piston rods of the switching cylinder 33 and the interlocking cylinder 38 are both retracted to the initial position so that the drilling rock drill 34 is in the drilling position and the bolting rock drill 35 is in a fixed state;

5) the anchor rod warehouse is used for replacing a new anchor rod for the rock drill;

6) and repeating the above operation steps, and further completing underground support at other positions.

It is worth noting that during the drilling and anchoring process of a single anchor rod, the top plate 310 on the fixed beam 31 always abuts against the same position on the roadway roof to be anchored.

Example two:

the difference between the present embodiment and the first embodiment is; in the embodiment, a limiting interlocking component and an interlocking oil cylinder are not arranged; a second propulsion oil cylinder is additionally arranged; namely, one of the propulsion oil cylinders is responsible for lifting and pulling back the drilling rock drill, and the other propulsion oil cylinder is responsible for lifting and pulling back the anchor rod rock drill, and the two are not interfered with each other.

In this embodiment, a push beam includes a bracket mounted on a working arm, a fixed beam fixedly mounted on the bracket, and a rotating beam rotatably mounted on the bracket, where the fixed beam and the rotating beam are distributed in parallel, and the rotating beam is driven by a switching cylinder to rotate around the fixed beam as a central axis; the rotating beam is also provided with a drilling rock drill, an anchor rod rock drill, a first propulsion oil cylinder for pushing the drilling rock drill to axially move and a second propulsion oil cylinder for pushing the anchoring rock drill to axially move, and the drilling rock drill and the anchor rod rock drill are respectively positioned on the left side and the right side of the rotating beam;

during drilling, the top end of the fixed beam is abutted against a roadway top plate to be anchored and fixed; the switching oil cylinder drives the rotating beam to rotate so that the drilling rock drill is located at a drilling position; the first propulsion oil cylinder drives the drilling rock drill to complete drilling work;

after the drilling is finished, the top end of the fixed beam still abuts against the roadway top plate to be anchored and is fixed; the first propulsion oil cylinder drives the drilling rock drill to return to an initial position; the switching oil cylinder drives the rotating beam to rotate so that the anchor rod rock drill is located at a drilling position; and the second propulsion oil cylinder drives the anchor rod rock drill to complete the anchoring operation.

It should be noted that in the first embodiment, the extension and retraction of the piston rod of the switching cylinder can only complete the anchoring operation of one anchor rod, and in the present embodiment, the extension and retraction of the piston rod of the switching cylinder can complete the anchoring operation of two anchor rods; the specific working process is as follows:

1) the driver operates the working arm to enable the propelling beam to be positioned at a designated position according to a designated angle, and the top plate on the fixed beam is abutted against a roadway top plate to be anchored, and at the moment, the drilling rock drill is positioned at a drilling position;

2) and drilling: the first propulsion oil cylinder drives the rock drill to ascend so as to complete the drilling work; after drilling is finished, the first propulsion oil cylinder drives the drilling rock drill to descend to an initial position;

3) and an anchoring process: the piston rod of the switching oil cylinder extends out to the maximum value to drive the rotating beam to rotate around the fixed beam, the anchor rod rock drill is enabled to be in a drilling position, and then the second pushing oil cylinder drives the anchor rod rock drill to ascend to finish anchoring work; after the anchoring is finished, the second propulsion oil cylinder drives the anchor rod rock drill to descend to the initial position;

4) the anchor rod warehouse is used for replacing a new anchor rod for the rock drill;

5) repeating the above operation steps to finish the anchoring operation of the next anchor rod, wherein in the anchoring process, a piston rod of the switching oil cylinder retracts from the maximum extending position to the initial position so that the rock drill is positioned at the drilling position;

6) and repeating the above operation steps to finish the anchoring operation of the next two anchor rods.

Example three:

the difference between the present embodiment and the first embodiment is; in this embodiment the switching of the drilling rock drill and the rock bolting machine is accomplished by translational sliding.

Such as a rotating beam, is slidably mounted on the fixed beam.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A feed beam comprising a drilling rock drill (34) and a rockbolt rock drill (35), and a feed cylinder (37) for driving the drilling rock drill (34) in axial movement for performing drilling operations and the rockbolt rock drill (35) in axial movement for performing anchoring operations, characterized in that,

the propelling beam further comprises a support (30), a fixed beam (31) fixedly mounted on the support (30) and a rotating beam (32) rotatably mounted on the support (30), the fixed beam (31) and the rotating beam (32) are distributed in parallel, the drilling rock drill (34) and the rock bolt rock drill (35) are respectively located on two opposite sides of the rotating beam (32), and the rotating beam (32) is driven by a switching oil cylinder (33) and rotates by taking the fixed beam (31) as a central shaft (393); so that the drilling rock drill (34) is in a drillable position during drilling or the anchor rock drill (35) is in a drillable position during anchoring;

wherein, from the beginning of drilling to the end of anchoring, the top end of the fixed beam (31) is always propped against the roadway roof needing anchoring and is fixed.

2. A feed beam according to claim 1, characterized in that the top end of the fixed beam (31) is provided with a top plate (310), and a plurality of protrusions are distributed on the upper surface of the top plate (310) to ensure that the fixed beam (31) can be stably supported against the roadway roof to be anchored.

3. A feed beam according to claim 1, characterised in that the turning beam (32) is rotatably mounted on the fixed beam (31) by means of at least two connecting pieces (327), one end of the connecting piece (327) being rotatably mounted on the fixed beam (31) and the other end being fixedly connected to or integrally formed with the turning beam (32).

4. A feed beam according to claim 1, characterised in that the feed cylinder (37) performs the feed and retraction of the drilling rock drill (34) and the rockbolt rock drill (35) by means of wire ropes or chains.

5. A feed beam according to claim 1, characterised in that the number of feed cylinders (37) is two, and that during drilling one of the feed cylinders (37) drives the rock drilling machine (34) in axial movement for performing the drilling operation, and during anchoring the other feed cylinder (37) drives the rock drilling machine (35) in axial movement for performing the anchoring operation.

6. A feed beam according to claim 1, characterised in that the number of feed cylinders (37) is one, wherein during drilling the feed cylinders (37) only drive the rock drilling machine (34) in axial movement for performing the drilling operation, and wherein during anchoring the feed cylinders (37) only drive the rock bolting machine (35) in axial movement for performing the anchoring operation.

7. A push beam according to claim 6, characterized in that the rotary beam (32) is further provided with a limit interlocking device (36) and an interlocking cylinder (38) for pushing the limit interlocking device (36) to move transversely; the limiting interlocking device (36) is positioned between the drilling rock drill (34) and the anchor rod rock drill (35);

during drilling, the interlocking oil cylinder (38) enables the limiting interlocking device (36) to be located on one side of the rock bolting machine (35) to limit axial movement of the rock bolting machine (35), and during anchoring, the interlocking oil cylinder (38) enables the limiting interlocking device (36) to be located on one side of the rock bolting machine (34) to limit axial movement of the rock bolting machine (34).

8. A feed beam according to claim 7, characterized in that the feed beam is further provided with an upper pulley block (320), a lower pulley block (321), a movable pulley block (322), a pull-back wire rope and a feed wire rope, the upper pulley block (320) is fixed at the upper end of the propelling beam and the lower pulley block (321) is fixed at the lower end of the propelling beam, the movable pulley block (322) is arranged at the middle section of the propelling beam and is pushed by the propelling oil cylinder (37) to enable the movable pulley block (322) to move up and down along the axial direction of the propelling beam, one end of the pull-back steel wire rope is fixed at a position A (323) on the drilling rock drill (34), and sequentially bypasses one pulley in the lower pulley block (321), one pulley in the movable pulley block (322) and the other pulley in the lower pulley block (321), and the other end of the steel wire rope is pulled back to be fixed at a position B (324) on the anchor rod rock drill (35); one end of the propelling steel wire rope is fixed at a position C (325) on the drilling rock drill (34), and sequentially bypasses one pulley in the upper pulley block (320), the other pulley in the movable pulley block (322) and the other pulley in the upper pulley block (320), and the other end of the propelling steel wire rope is fixed at a position D (326) on the anchor rod rock drill (35);

wherein, the position A (323) and the position B (324) are both positioned above the lower pulley block (321); both position C (325) and position D (326) are located below the upper pulley block (320).

9. The push beam according to claim 7, wherein the limiting interlocking device (36) comprises a limiting seat (360) and a limiting block (361), the limiting seat (360) is fixedly connected with the rotating beam (32), a limiting groove (362) is arranged on the limiting seat (360), the limiting block (361) is slidably mounted in the limiting groove (362) and connected with the interlocking cylinder (38), limiting pieces (363) are arranged at the left end and the right end of the limiting block (361), and the limiting pieces (363) are fixedly connected with or integrally formed with the limiting block (361); when the interlocking oil cylinder (38) pushes the limiting block (361) to slide towards one side of the drilling and rock drilling machine (34) and the limiting block (363) on one side of the drilling and rock drilling machine (34) is in contact with the drilling and rock drilling machine (34), the drilling and rock drilling machine (34) can be limited to move in the axial direction, and the limiting block (363) on one side of the anchor rod rock drilling machine (35) is not in contact with the anchor rod rock drilling machine (35) any more; when the interlocking cylinder (38) pushes the limiting block (361) to slide towards one side of the rock bolt drilling machine (35) and the limiting block (363) on one side of the rock bolt drilling machine (35) is in contact with the rock bolt drilling machine (35), the rock bolt drilling machine (35) can be limited from moving in the axial direction, and the limiting block (363) on one side of the drilling rock drilling machine (34) is not in contact with the drilling rod drilling machine any more.

10. A hydraulic rock bolt drill carriage, characterized in that it comprises a feed beam according to any one of claims 1-9.

Images