CN220415277U

CN220415277U - Weak rock drilling device and anchor rod trolley

Info

Publication number: CN220415277U
Application number: CN202322139748.7U
Authority: CN
Inventors: 龚俊; 宋祖源; 高云; 毛波; 王慧民; 阳乐多
Original assignee: Hunan Wuxin Tunnel Intelligent Equipment Co Ltd
Current assignee: Hunan Wuxin Tunnel Intelligent Equipment Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-01-30
Anticipated expiration: 2033-08-09

Abstract

The utility model discloses a weak rock drilling device and an anchor rod trolley, comprising a frame, a power assembly, a first support assembly and a second support assembly, wherein the power assembly is connected to the frame in a sliding manner, and a driving connection structure is arranged on the power assembly and is used for connecting the end part of a drill rod and driving the drill rod to drill; the first support component is fixedly arranged at the tail end of the frame, and a first support structure is arranged on the first support component and used for supporting the drill rod; the second supporting component is slidably connected to the frame and located between the power component and the first supporting component, and a second supporting structure is arranged on the second supporting component and used for supporting the drill rod. The utility model is applied to the technical field of rock drilling, and by modifying the scheme of the spiral drill, the drilling efficiency, the drilling precision and the pore-forming quality of weak rock are effectively improved, so that the utility model can be more suitable for the drilling construction of limited space in a tunnel.

Description

Weak rock drilling device and anchor rod trolley

Technical Field

The utility model relates to the technical field of rock drilling, in particular to a weak rock drilling device and an anchor rod trolley.

Background

In tunnel construction, when the bearing capacity of the tunnel foundation can not meet the design requirement, grouting steel pipes with certain length are driven into the tunnel foundation according to certain parameters, cement grout is injected into surrounding rocks of the tunnel foundation through a grouting machine, the surrounding rocks are solidified, and the strength of the surrounding rocks can be improved.

The process of grouting the tunnel soft foundation to strengthen the foundation is widely applied at present. The process has the advantages of quick construction preparation, short circulation period, ideal reinforcement effect and the like, and plays a positive role in ensuring the contract construction period and the tunnel operation safety for the tunnel to rapidly pass through the surrounding rock section with poor geology. In tunnel construction, holes are usually drilled by means of augers or rock drills. Both drilling modes have certain problems in weak rock drilling.

The conventional auger has the following problems in weak rock drilling:

1) The traditional spiral drill has the defects that the drill rod is short, and the drill rod needs to be abutted for a long hole for multiple times;

2) The traditional auger has the advantages that the action arm support is short and small, the operation range is very limited, and for large-scale drilling operation with a large number of holes, the field requirement is high and the drilling efficiency is low;

3) Traditional auger all adopts the gas to arrange sediment mode drilling, to the low rock stratum of humidity, produces a large amount of dust easily in the drilling process, to the construction of relative confined tunnel for operator's operation environment is abominable.

The conventional rock drill has the following problems in weak rock drilling:

1) The diameter of the drilling hole of the traditional rock drill is 50-80mm, and the large hole of the steel pipe pile used for reinforcing weak surrounding rock cannot be drilled;

2) The rock drill adopts a water deslagging mode for drilling, so that mud is easy to form for weak surrounding rock, drilling resistance is increased, and slag discharge is not facilitated;

3) The propelling beam end is a disc-shaped rubber shock pad, so that the vibration is small for weak surrounding rock, and the rubber material is easy to slip after wetting, so that the propelling beam end is easy to slide, and the drilling quality is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the weak rock drilling device and the anchor rod trolley, which can effectively improve the drilling efficiency, the drilling precision and the pore-forming quality of weak rock by modifying the scheme of the spiral drill, and can be more suitable for the drilling construction of limited space in a tunnel.

To achieve the above object, the present utility model provides a weak rock drilling apparatus comprising:

a frame;

the power assembly is connected to the frame in a sliding way, and a driving connection structure is arranged on the power assembly and used for connecting the end part of the drill rod and driving the drill rod to drill;

the first support component is fixedly arranged at the tail end of the frame, and a first support structure is arranged on the first support component and used for supporting the drill rod;

the second supporting component is connected to the frame in a sliding mode and located between the power component and the first supporting component, and a second supporting structure is arranged on the second supporting component and used for supporting the drill rod.

In one embodiment, the power assembly comprises a mounting plate and a power head;

the mounting plate is connected to the frame in a sliding manner, the power head is arranged on the mounting plate, and the driving connection structure is arranged on the power head.

In one embodiment, the first support assembly includes a first support seat and a first guide seat;

the first supporting seat is fixedly connected to the tail end of the frame, the first guide seat is connected to the first supporting seat, and the first supporting structure is detachably arranged on the first guide seat.

In one embodiment, the second supporting component comprises a second supporting seat and a second guiding seat;

the second supporting seat is connected to the frame in a sliding mode, the second guide seat is connected to the second supporting seat, and the second supporting structure is detachably arranged on the second guide seat.

In one embodiment, the weak rock drilling rig further comprises a third support assembly;

one end of the third supporting component is connected with the tail end of the frame, and the other end of the third supporting component is provided with an abutting mechanism capable of abutting into a rock stratum.

In one embodiment, the third support assembly includes a third support base and at least one access plate;

the third supporting seat is detachably connected to the tail end of the frame, the first end of the propping plate is connected with the third supporting seat, and the propping mechanism is of a sawtooth structure arranged at the second end of the propping plate.

In one embodiment, the number of the abutting plates is more than two, each abutting plate is sequentially connected to the third supporting seat at intervals, and two adjacent abutting plates are connected through a rib plate.

In one embodiment, the third supporting seat comprises a first connecting plate and a second connecting plate which are fixedly connected;

the first connecting plate is fixedly connected with the tail end of the frame, the second connecting plate is fixedly connected with the bottom of the first supporting component, and the propping plate is connected to the first connecting plate.

In one embodiment, the frame comprises a boom and a push beam;

the propelling beam is detachably connected to the arm support, and the power assembly, the first support assembly and the second support assembly are all arranged on the propelling beam.

In order to achieve the aim, the utility model also provides an anchor rod trolley which comprises the weak rock drilling device.

The utility model has the following beneficial technical effects:

1. according to the weak rock drilling device, the drilling depth is deeper than that of a traditional spiral drill, a longer drill rod can be configured, deformation of the long drill rod is reduced through the first supporting component and the second supporting component, the drilling depth of a single drill rod is deeper, the number of times of connecting rods is reduced, and the operation efficiency is improved;

2. according to the weak rock drilling device, the third supporting component can be arranged in the preferred embodiment, and the shaking of the drill rod in the drilling process can be effectively reduced through the combined action of the first supporting component, the second supporting component and the third supporting component, so that the quality of hole forming and the accuracy of drilling are improved;

3. the weak rock drilling device can use the arm support of the existing anchor rod trolley, is flexible in operation, larger in range, low in site requirement, high in drilling efficiency in a large range and capable of being more suitable for drilling construction in limited space in a tunnel;

4. the water pipe and the air pipe are arranged on the arm support of the existing anchor rod trolley, so that when the weak rock drilling device is applied to the existing anchor rod trolley, different deslagging modes can be adopted for soil with different humidity, dust in the drilling process can be effectively restrained, and the working environment can be greatly improved for the closed construction environment in a tunnel.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an elevation view of a weak rock drilling rig according to an embodiment of the utility model;

fig. 2 is a top view of a weak rock drilling rig according to an embodiment of the utility model;

fig. 3 is an isometric view of a third support assembly according to an embodiment of the utility model.

Reference numerals: the device comprises a frame 1, an arm support 101, a push beam 102, a power assembly 2, a mounting plate 201, a power head 202, a driving connection structure 203, a first support assembly 3, a first support base 301, a first guide base 302, a second support assembly 4, a second support base 401, a second guide base 402, a third support assembly 5, an abutting plate 501, a first connection plate 502, a second connection plate 503, an abutting mechanism 504, a rib plate 505 and a drill rod 6.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; the device can be mechanically connected, electrically connected, physically connected or wirelessly connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Example 1

Fig. 1 and 2 show a weak rock drilling device disclosed in this embodiment, which mainly comprises a frame 1, a power assembly 2, a first support assembly 3 and a second support assembly 4. The power assembly 2 is slidably connected to the frame 1, and a driving connection structure 203 capable of being connected to the head of the drill pipe 6 is disposed on the power assembly 2, that is, the power assembly 2 is mainly used for connecting to the head of the drill pipe 6 and driving the drill pipe 6 to drill. The tail end at frame 1 is fixedly established to first supporting component 3, is equipped with first bearing structure on the first supporting component 3 to be used for supporting drilling rod 6 at drilling rod 6 in-process, reduce the rocking of drilling rod 6 in-process. The second support component 4 is slidably connected to the frame 1 and is located between the power component 2 and the first support component 3, and the second support component 4 is provided with a second support structure, and is also used for supporting the drill rod 6 in the drilling process of the drill rod 6, so that shaking of the drill rod 6 in the drilling process is reduced, and the weak rock drilling device can load longer drill rod 6.

In this embodiment, the frame 1 includes a boom 101 and a push beam 102, the push beam 102 is detachably connected to the boom 101, and the power assembly 2, the first support assembly 3, and the second support assembly 4 are all disposed on the push beam 102. In the concrete implementation process, the propelling beams 102 with different lengths can be replaced according to actual demands, and under the supporting action of the first supporting component 3 and the slidable second supporting component 4 on the propelling beams 102, the weak rock drilling device can effectively avoid deformation of the drilling rod 6 in the drilling process even when the drilling rod 6 with the length of more than 6m is loaded, so that the drilling depth of a single drilling rod 6 is deeper, the number of times of connecting rods is reduced, and the operation efficiency is improved.

As a preferred embodiment, the arm support 101 on the frame 1 may be an arm support of an anchor rod trolley, that is, in the application process, the weak rock drilling device is directly carried on the anchor rod trolley, and the arm support of the anchor rod trolley has 4 rotation hinge points and 1 section of telescopic arm, so that the weak rock drilling device not only has flexible operation and larger range, but also has low requirements on the field and high drilling efficiency in a large range, and can be more suitable for weak rock drilling construction in a limited space in a tunnel. Meanwhile, as the water pipe and the air pipe are arranged on the arm support of the existing anchor rod trolley and are matched with the through holes on the drill rod 6, when the weak rock drilling device is applied to the actual drilling of the existing anchor rod trolley, different slag discharging modes such as hole site water injection or ventilation or aerosol ventilation can be selected according to dust raising conditions, dust in the drilling process can be effectively restrained, and the working environment can be greatly improved according to the closed construction environment in a tunnel.

In this embodiment, the power assembly 2 includes a mounting plate 201 and a power head 202, the mounting plate 201 is slidably connected to the push beam 102, the power head 202 is disposed on the mounting plate 201, the driving connection structure 203 is a connecting rod connected to an output end of the power head 202, that is, one end of the connecting rod is connected to the output end of the power head 202, and the other end of the connecting rod can be detachably connected to the head of the drill rod 6. In a specific implementation, the mounting plate 201 may be a clamping plate structure, a sliding block structure or a screw-nut pair structure that can be slidably matched with the push beam 102. The power head 202 is mainly used for providing power for drilling of the drill rod 6, and is compatible with a hydraulic system of a jumbo, for example, a conventional jumbo rock drill can be directly adopted as the power head 202.

In this embodiment, the first support assembly 3 includes a first support base 301 and a first guide base 302, the first support base 301 is fixedly connected to the tail end of the push beam 102 by means of bolting or welding, the first guide base 302 is connected to the first support base 301 by means of bolting or welding or integrally forming, and the first support structure is detachably provided on the first guide base 302. In the implementation process, the first supporting structure is a steel sleeve detachably connected to the first guide seat 302, so that the first supporting structure can support the drill rod 6 and simultaneously can effectively avoid abrasion of the first guide seat 302 caused by friction of the drill rod 6. Wherein preferably a soil-withdrawal structure may be arranged at the first support seat 301 or the first guide seat 302 for removing the slag on the drill rod 6.

In this embodiment, the second support assembly 4 includes a second support seat 401 and a second guide seat 402, the second support seat 401 is slidably connected to the push beam 102, the second guide seat 402 is connected to the second support seat 401 by a bolt connection or a welding or an integral forming manner, and the second support structure is detachably provided on the second guide seat 402. In a specific implementation process, the second support seat 401 may adopt a clamping plate structure, a sliding block structure or a screw-nut pair structure that can be slidably matched with the push beam 102. The second bearing structure is the steel bushing of detachably connection on second guide holder 402 for the second bearing structure can also effectively avoid the wearing and tearing that second guide holder 402 produced because of the friction of drilling rod 6 when supporting drilling rod 6.

In a specific application process, steel sleeves with different inner diameters can be replaced as a first supporting structure and a second supporting structure according to actual requirements, so that the weak rock drilling device can drill rods 6 with different diameters.

As a preferred embodiment, the weak rock drilling device further comprises a third support assembly 5, one end of the third support assembly 5 is connected to the tail end of the push beam 102, and the other end is provided with an abutment mechanism 504 for abutting against the rock formation. During drilling construction, the propping mechanism 504 on the third support assembly 5 can prop into the rock stratum, so that the supporting effect is achieved, shaking of the push beam 102 in the drilling process is reduced, the first support assembly 3 and the second support assembly 4 are matched to act together, shaking of the drill rod 6 in the drilling process can be effectively reduced, and the quality of hole forming and the accuracy of drilling can be improved.

Referring to fig. 3, the third support assembly 5 includes a third support base and at least one abutment plate 501. Specifically, the third supporting seat includes a first connecting plate 502 and a second connecting plate 503 fixed in an L-shaped structure, the first connecting plate 502 is fixedly connected with the tail end of the push beam 102 through bolts, and the second connecting plate 503 is fixedly connected with the bottom of the first supporting seat 301. The first end and the top end of the abutting plate 501 are respectively connected to the first connecting plate 502 and the second connecting plate 503, and the abutting mechanism 504 has a saw tooth structure provided at the second end of the abutting plate 501. Preferably, the number of the abutting plates 501 is more than two, each abutting plate 501 is sequentially connected to the third supporting seat at intervals, and two adjacent abutting plates 501 are connected through the rib plate 505. The jagged propping mechanism 504 on the propping plate 501 can prop into the rock stratum, increase the supporting point in the drilling process, reduce the shaking during drilling, and the rib plate 505 can increase the resistance of the third supporting component 5 when propping into the rock stratum while increasing the structural strength of the third supporting component 5, control the propping depth, avoid the propping into too deep, and the rock stratum collides with the first supporting component 3 to be damaged.

It should be noted that the abutting mechanism 504 on the third supporting component 5 is not limited to a saw tooth structure, but may be other structures such as a hook, etc., or may have other saw tooth shapes, numbers, etc. to improve the fixing capability of the third supporting component 5.

Example 2

This embodiment discloses a bolting trolley on which the weak rock drilling rig of embodiment 1 is loaded. Namely, the existing anchor rod trolley is modified, so that the anchor rod trolley can be applied to drilling holes of weak rocks. As the arm support of the anchor rod trolley is provided with 4 rotation hinge points and 1 section of telescopic arm, the loaded weak rock drilling device is flexible in operation, larger in range, low in site requirement and high in drilling efficiency in a large range, and can be more suitable for weak rock drilling construction in limited space in a tunnel. Meanwhile, as the water pipe and the air pipe are arranged on the arm support of the existing anchor rod trolley and are matched with the through holes on the drill rod, when the loaded weak rock drilling device is applied to the actual drilling of the existing anchor rod trolley, different slag discharging modes such as hole site water injection or ventilation or aerosol ventilation can be selected according to dust raising conditions, dust in the drilling process can be effectively restrained, and the working environment can be greatly improved according to the closed construction environment in a tunnel.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A weak rock drilling rig, comprising:

a frame;

2. A weak rock drilling device according to claim 1, wherein the power assembly comprises a mounting plate and a power head;

3. A weak rock drilling device according to claim 1, wherein the first support assembly comprises a first support seat and a first guide seat;

4. A weak rock drilling device according to claim 1, wherein the second support assembly comprises a second support seat and a second guide seat;

5. A weak rock drilling device according to any one of claims 1 to 4, further comprising a third support assembly;

6. A weak rock drilling device according to claim 5, wherein the third support assembly comprises a third support seat and at least one abutment plate;

7. A weak rock drilling device according to claim 6, wherein the number of said abutment plates is two or more, each of said abutment plates being connected to said third support at spaced intervals in turn, and adjacent ones of said abutment plates being connected by a web.

8. A weak rock drilling device according to claim 6, wherein the third support seat comprises a first connection plate and a second connection plate fixedly connected;

9. A weak rock drilling device according to any one of claims 1 to 4, wherein the frame comprises a boom and a push beam;

10. A rock-bolter, characterized by comprising a weak rock drilling rig as claimed in any one of claims 1 to 9.