CN217001921U

CN217001921U - Roofbolter spouts supercharging device soon

Info

Publication number: CN217001921U
Application number: CN202220801873.2U
Authority: CN
Inventors: 许岳峰; 王贤; 张威岩; 柳振; 蒋康怡; 李传夫; 蒋子晗
Original assignee: China Construction Eighth Bureau Development and Construction Co Ltd
Current assignee: China Construction Eighth Bureau Development and Construction Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-19
Anticipated expiration: 2032-04-08

Abstract

The utility model provides a rotary jet pressurizing device of a jumbolter, and belongs to the technical field of building construction. The device includes coupling mechanism and support frame, coupling mechanism includes the connecting pipe, booster pipe and slip casting pipe, the one end and the roofbolter power take off end of connecting pipe are connected, the other end and the slip casting pipe fixed connection of connecting pipe, the other end and the drilling rod of roofbolter of slip casting pipe are connected, the outside of slip casting pipe is located to the booster pipe cover, the both ends of booster pipe all are provided with the end cover, the inside of booster pipe is formed with the pressure boost chamber, the top of booster pipe is provided with the conveying pipeline, conveying pipeline and pressure boost chamber intercommunication, the bottom fixedly connected with chassis of booster pipe, the support frame is provided with four groups, and the symmetry sets up in the bottom four corners on chassis, the support frame includes the backing plate, the screw rod, sleeve pipe and bottom plate, the top of backing plate and the bottom fixed connection on chassis, the screw rod sets up in the below of backing plate, the bottom of screw rod is located to the sleeve pipe cover, the bottom plate sets up in sheathed tube bottom.

Description

Roofbolter spouts supercharging device soon

Technical Field

The utility model relates to the technical field of building construction, in particular to a rotary spraying supercharging device of a jumbolter.

Background

The jumbolter is mainly used for the slip wave treatment engineering and the dangerous rock mass anchoring engineering of railway, highway, water conservancy and hydropower facilities, the high slope rock mass anchoring engineering of controlling the displacement of buildings and the like, and is also used for constructing urban deep foundation pit supporting and foundation reinforcing engineering holes, blasting holes of blasting engineering, tunnel pipe shed supporting holes and the like, and has good performance, strong drilling capability and wide application range of the jumbolter.

The anchor rod drilling machine generally on the market can not realize the high-pressure rotary jet operation of the drill bit, and only solves the basic problems of hole collapse, water leakage, sand gushing and the like, because part of projects need to adopt the enlarged head process at the anchor rod anchoring section and increase one section of reaming section, but the reaming pressure of the conventional drilling machine can not meet the theoretical requirement, only 5-10Mpa can not carry out reaming operation, the construction progress and efficiency are influenced, and dangerous accidents are easily caused by the construction quality in serious cases.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides the rotary jet pressurizing device of the anchor rod drilling machine, wherein the pressurizing device is additionally arranged between the drilling machine and the drill rod, so that the working pressure of the rotary jet of the anchor rod drilling machine is improved, and the diameter of the rotary jet reaming end is not less than the design requirement.

The utility model is realized by the following steps:

a rotary spraying supercharging device of a roof bolt drilling machine comprises a connecting mechanism and a supporting frame, wherein the connecting mechanism comprises a connecting pipe, a supercharging pipe and a grouting pipe, the connecting pipe, the supercharging pipe and the grouting pipe are coaxially arranged, one end of the connecting pipe is connected with a power output end of the roof bolt drilling machine, the other end of the connecting pipe is fixedly connected with the grouting pipe, the other end of the grouting pipe is connected with a drill rod of the roof bolt drilling machine, the supercharging pipe is sleeved outside the grouting pipe, end covers are arranged at two ends of the supercharging pipe respectively, the end covers are connected with the supercharging pipe through bolts, a supercharging cavity is formed inside the supercharging pipe, a material conveying pipe is arranged at the top of the supercharging pipe and is communicated with the supercharging cavity, a chassis is fixedly connected to the bottom of the supercharging pipe, the supporting frame is provided with four groups and is symmetrically arranged at four corners of the bottom of the chassis, the support frame comprises a base plate, a screw rod, a sleeve and a bottom plate, wherein the top of the base plate is fixedly connected with the bottom of the chassis, the screw rod is arranged below the base plate, the sleeve is sleeved at the bottom of the screw rod, and the bottom plate is arranged at the bottom of the sleeve.

In one embodiment of the utility model, an external thread is arranged at one end of the connecting pipe, which is far away from the grouting pipe, the external thread is in threaded fit with a power output end of the jumbolter, the thread fastening direction is opposite to the drilling rotation direction of the jumbolter, and the bottom of the external thread is provided with a bayonet part which is a planar groove arranged on the outer surface of the connecting pipe in an annular array.

In one embodiment of the utility model, two groups of sealing bearings are arranged on the outer surface of the grouting pipe, the sealing bearings are respectively and fixedly connected with two groups of end covers, an internal thread is arranged at one end of the grouting pipe, which is far away from the connecting pipe, the internal thread is used for being in threaded fit connection with a drill rod, and the fastening direction of the thread is opposite to the drilling rotation direction of a drilling machine.

In one embodiment of the utility model, the outer wall of the grouting pipe is provided with communication holes in an annular array, the communication holes are arranged inside the pressurization cavity, and the communication holes are used for communicating the pressurization cavity and the grouting pipe.

In one embodiment of the utility model, the top of the screw is fixedly connected with the base plate, the outer side of the screw is provided with a rotating wheel, the inner wall of the rotating wheel is provided with threads matched with the screw, the outer wall of the rotating wheel is symmetrically provided with four groups of handles for rotating the rotating wheel, and one side of the rotating wheel is abutted against the top of the sleeve.

In an embodiment of the utility model, the length of the sleeve is greater than that of the screw rod, the outer wall of the bottom of the sleeve is provided with the reinforcing ribs in an annular array, the reinforcing ribs are in a triangular structure, and the other sides of the reinforcing ribs are fixedly connected with the top of the bottom plate.

In one embodiment of the utility model, a rubber sheet is arranged at the bottom of the bottom plate, and the rubber sheet is fixed with the bottom plate in an adhesive manner.

In one embodiment of the utility model, two groups of hanging rings are symmetrically arranged on the top of the chassis, and the hanging rings are connected with the chassis in a welding or threaded manner.

The anchor rod drilling machine rotary spraying supercharging device obtained through the design has the beneficial effects that: by additionally arranging the supercharging device between the drilling machine and the drill rod, during grouting, grouting is simultaneously carried out from the conveying pipe and the original pipeline of the drilling machine, the grouting volume is increased, the grouting volume is collected by the supercharging cavity and then is guided into the drill rod through the grouting pipe to be sprayed out from the front end of the drill rod, and the pipe diameter is reduced, so that the rotary spraying pressure of slurry is improved, the construction of the anchor hole expanding section meets the design requirement, the device is reasonable in structure, convenient to install and disassemble, capable of directly modifying the drilling machine which does not meet the requirement, high in utilization rate and high in construction efficiency and quality; the support frame ensures the stable structure of the supercharging device, is convenient to adjust, simple to install and wide in application range.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a bolting rig rotary jet supercharging device according to an embodiment of the utility model;

fig. 2 is a schematic cross-sectional structural view of a bolting rig rotary jet supercharging device according to an embodiment of the utility model;

fig. 3 is a schematic side view of a rotary jetting pressurizing device of a jumbolter according to an embodiment of the present invention;

in the figure: 100-a connection mechanism; 101-a connecting tube; 1011-external thread; 1012-bayonet part; 102-a pressure inlet duct; 1021-end cap; 1022-a plenum chamber; 1024-conveying pipe; 1025-chassis; 1026-hoisting ring; 103-grouting pipe; 1031-sealing bearing; 1032-communication hole; 1033-internal thread; 200-a support frame; 201-a backing plate; 202-screw rod; 2021-wheel; 2022-a handle; 203-a cannula; 2031-reinforcing bar; 204-a bottom plate; 2041 rubber sheet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

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", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed 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, "a plurality" means two or more unless specifically defined otherwise.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a rotary spraying supercharging device of an anchor rod drilling machine comprises a connecting mechanism 100 and a support frame 200, wherein the connecting mechanism 100 comprises a connecting pipe 101, a supercharging pipe 102 and a grouting pipe 103, the connecting pipe 101, the supercharging pipe 102 and the grouting pipe 103 are coaxially arranged, one end of the connecting pipe 101 is connected with the power output end of the anchor rod drilling machine, the other end of the connecting pipe 101 is fixedly connected with the grouting pipe 103, the other end of the grouting pipe 103 is connected with a drill rod of the anchor rod drilling machine, the connecting mechanism 100 is additionally arranged at the joint of the drilling machine and the drill rod, the work of the anchor rod drilling machine is not influenced, the drilling machine is not damaged in motion, the supercharging pipe 102 is sleeved outside the grouting pipe 103, end covers 1021 are arranged at two ends of the supercharging pipe 102, the end covers 1021 are connected with the supercharging pipe 102 through bolts, a supercharging cavity 1022 is formed inside the supercharging pipe 102, the supercharging cavity 1022 is formed by the supercharging pipe 102 and two end covers into a closed cavity, and a conveying pipe 1021 is arranged at the top of the supercharging pipe 102, conveying pipe 1024 is communicated with pressurizing cavity 1022, conveying pipe 1024 is used as a pipe fitting for hydraulic slurry conveying, and is used for secondary pressurization of original grouting liquid, bottom fixedly connected with base plate 1025 of pressurizing pipe 102, base plate 1025 is used for fixing connecting mechanism 100, the whole rotation of device is prevented in the rotation process of the drilling machine, support frame 200 is provided with four groups, and is symmetrically arranged at four corners of the bottom of base plate 1025, support frame 200 comprises backing plate 201, screw 202, sleeve 203 and bottom plate 204, the top of backing plate 201 is fixedly connected with the bottom of base plate 1025, screw 202 is arranged below backing plate 201, sleeve 203 is sleeved at the bottom of screw 202, bottom plate 204 is arranged at the bottom of sleeve 203, support frame 200 provides four-corner-balanced support for the pressurizing device, and height of connecting mechanism 100 is conveniently adjusted, so as to adapt to the central shaft position of the drilling machine with different models.

As an embodiment of the utility model, further, an external thread 1011 is arranged at one end of the connecting pipe 101, which is far away from the grouting pipe 103, the external thread 1011 is in threaded fit with the power output end of the jumbolter, the thread fastening direction is opposite to the drilling rotation direction of the jumbolter, the external thread 1011 can be directly butted and fastened with the connecting pipe 101 when the output end of the jumbolter rotates, manual operation is reduced, time and labor are saved, a bayonet part 1012 is arranged at the bottom of the external thread 1011, the bayonet part 1012 is a planar groove arranged on the outer surface of the connecting pipe 101 in an annular array, and the bayonet part 1012 is convenient for a tool to be clamped into the bayonet part 1012 for limiting when the connecting pipe 101 is disassembled, so that the disassembly is easier.

As an embodiment of the present invention, further, two sets of sealing bearings 1031 are disposed on an outer surface of the grouting pipe 103, the sealing bearings 1031 are respectively and fixedly connected to the two sets of end covers 1021, the sealing bearings 1031 enhance the sealing performance of the pressure increasing chamber 1022, and prevent the pressure increasing pipe 102 from leaking and affecting pressure, an internal thread 1033 is disposed at one end of the grouting pipe 103 away from the connecting pipe 101, the internal thread 1033 is used for being in threaded fit connection with a drill rod, and the thread fastening direction is opposite to the drilling rotation direction of the drilling machine, the grouting pipe 103 is directly connected to the drill rod, and the fit fastening is also realized by the rotation of the drilling machine.

As an embodiment of the utility model, further, the communication holes 1032 are formed in the outer wall of the grouting pipe 103 in an annular array, the communication holes 1032 are disposed inside the pressurizing cavity 1022, the communication holes 1032 are used for communicating the pressurizing cavity 1022 and the grouting pipe 103, when the rotation of the drill pipe driven by the grouting pipe 103 is not affected, the grout introduced through the conveying pipe 1024 can enter the grouting pipe 103, the liquid pressure in the grouting pipe 103 is increased, the liquid pressure jetted from the end of the drill pipe is increased, and the molding size of the jet reaming section is ensured.

As an embodiment of the present invention, further, the top of the screw 202 is fixedly connected to the pad 201, the outer side of the screw 202 is provided with a rotating wheel 2021, the inner wall of the rotating wheel 2021 is provided with a thread adapted to the screw 202, the outer wall of the rotating wheel 2021 is symmetrically provided with four groups of handles 2022 for rotating the rotating wheel 2021, one side of the rotating wheel 2021 abuts against the top of the sleeve 203, the matching between the rotating wheel 2021 and the screw 202 is used for adjusting the height of each group of the supporting frames 200, and the bottom of the rotating wheel 2021 abuts against the sleeve 203 to stabilize the supporting height, thereby preventing the problem that the drilling machine is jammed due to the change of the height of the central shaft of the connecting mechanism 100 caused by machine vibration or other external forces.

As an embodiment of the present invention, further, the length of the sleeve 203 is greater than the length of the screw 202, the annular array of the outer wall of the bottom of the sleeve 203 is provided with the reinforcing rib 2031, the reinforcing rib 2031 is in a triangular structure, and the other side of the reinforcing rib 2031 is fixedly connected to the top of the bottom plate 204, and the reinforcing rib 2031 improves the stress load of the sleeve 203, so that the support strength of the sleeve is higher.

As an embodiment of the present invention, further, a rubber sheet 2041 is disposed at the bottom of the bottom plate 204, the rubber sheet 2041 is fixed to the bottom plate 204 by gluing, the bottom plate 204 is supported on a machine, and the rubber sheet 2041 increases friction force, so that the bottom plate 204 is supported more stably.

As an embodiment of the utility model, further, two sets of hanging rings 1026 are symmetrically arranged on the top of the base plate 1025, the hanging rings 1026 are connected with the base plate 1025 in one of welding and threaded connection, and the hanging rings 1026 are conveniently connected with a lifting device, so that the installation and the disassembly of the supercharging device are more convenient, and time and labor are saved.

Specifically, this roofbolter spouts supercharging device soon's theory of operation is: firstly, the outer sleeve and the inner pipe drill bit are drilled to the front end of the anchor section of the anchor cable hole by adopting a method of drilling along with the pipe, the inner pipe drill bit is continuously drilled forwards to the depth required by the design, then the inner pipe drill bit is pulled out, a pressurizing device is arranged on the drilling machine, the matching positions of the four groups of rotating wheels 2021 and the screw 202 are respectively adjusted, so that a base plate 1025 at the bottom of the pressurizing pipe 102 is horizontal to a moving track of the drilling machine, the central axis of the connecting mechanism 100 is approximately coincident with the central axes of the drilling machine and the drilling rod, then the power output end of the drilling machine is matched and fastened with the external thread 1011 at the end part of the connecting pipe 101, then, the internal thread 1033 at the end part of the grouting pipe 103 is connected with a drill rod, then the delivery pipe 1024 is communicated with a hydraulic delivery device, the drill bit of the inner pipe carries the anchor cable steel strand to enter the hole again to the designed depth, the original pipeline of the drilling machine and the delivery pipe 1024 are opened, and slurry is led into the grouting pipe 103 after being collected by the pressurizing cavity 1022. And finally, the drill bit at the end part of the drill rod connected by the grouting pipe 103 is sprayed out to reach 25Mpa rotary spraying pressure, the reaming section is subjected to reaming operation, after the reaming diameter reaches the design requirement, cement slurry is poured into the reaming section, the anchor cable is left in the hole, the inner pipe drill bit is withdrawn, the supercharging device is detached, and the rotary spraying reaming operation is completed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. 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

1. The rotary spraying supercharging device of the anchor rod drilling machine is characterized by comprising a connecting mechanism (100) and a supporting frame (200), wherein the connecting mechanism (100) comprises a connecting pipe (101), a supercharging pipe (102) and a grouting pipe (103), the connecting pipe (101), the supercharging pipe (102) and the grouting pipe (103) are coaxially arranged, one end of the connecting pipe (101) is connected with the power output end of the anchor rod drilling machine, the other end of the connecting pipe (101) is fixedly connected with the grouting pipe (103), the other end of the grouting pipe (103) is connected with a drill rod of the anchor rod drilling machine, the supercharging pipe (102) is sleeved on the outer side of the grouting pipe (103), end covers (1021) are arranged at two ends of the supercharging pipe (102), the end covers (1021) are in bolted connection with the supercharging pipe (102), a supercharging cavity (1022) is formed inside the supercharging pipe (102), the top of pressure boost pipe (102) is provided with conveying pipeline (1024), conveying pipeline (1024) with pressure boost chamber (1022) intercommunication, the bottom fixedly connected with chassis (1025) of pressure boost pipe (102), support frame (200) are provided with four groups, and the symmetry set up in the bottom four corners of chassis (1025), support frame (200) include backing plate (201), screw rod (202), sleeve pipe (203) and bottom plate (204), the top of backing plate (201) with the bottom fixed connection of chassis (1025), screw rod (202) set up in the below of backing plate (201), sleeve pipe (203) cover is located the bottom of screw rod (202), bottom plate (204) set up in the bottom of sleeve pipe (203).

2. The rotary spraying supercharging device of the jumbolter according to claim 1, wherein an external thread (1011) is arranged at one end of the connecting pipe (101) far away from the grouting pipe (103), the external thread (1011) is in threaded fit with the power output end of the jumbolter, the thread fastening direction is opposite to the drilling rotation direction of the jumbolter, a bayonet part (1012) is arranged at the bottom of the external thread (1011), and the bayonet part (1012) is an annular array of planar grooves arranged on the outer surface of the connecting pipe (101).

3. The rotary jetting supercharging device of a roof bolter according to claim 1, characterized in that two sets of sealing bearings (1031) are disposed on the outer surface of the grouting pipe (103), the sealing bearings (1031) are respectively and fixedly connected with two sets of end covers (1021), an internal thread (1033) is formed at one end of the grouting pipe (103) far away from the connecting pipe (101), the internal thread (1033) is used for being in threaded fit connection with a drill rod, and the thread fastening direction is opposite to the drilling rotation direction of the roof bolter.

4. The rotary spraying pressurization device of the jumbolter according to claim 1, characterized in that the outer wall of the grouting pipe (103) is provided with communication holes (1032) in an annular array, the communication holes (1032) are arranged inside the pressurization cavity (1022), and the communication holes (1032) are used for communicating the pressurization cavity (1022) with the grouting pipe (103).

5. The rotary jet supercharging device of the roofbolter according to claim 1, characterized in that the top of the screw rod (202) is fixedly connected with the backing plate (201), a rotating wheel (2021) is arranged on the outer side of the screw rod (202), a thread adapted to the screw rod (202) is arranged on the inner wall of the rotating wheel (2021), four sets of handles (2022) for rotating the rotating wheel (2021) are symmetrically arranged on the outer wall of the rotating wheel (2021), and one side of the rotating wheel (2021) abuts against the top of the sleeve (203).

6. The rotary jetting supercharging device of a jumbolter according to claim 1, wherein the length of the sleeve (203) is greater than that of the screw rod (202), the annular array of the outer wall of the bottom of the sleeve (203) is provided with a reinforcement rib (2031), the reinforcement rib (2031) is in a triangular structure, and the other side of the reinforcement rib (2031) is fixedly connected with the top of the bottom plate (204).

7. The rotary jet supercharging device of an anchor drilling machine according to claim 1, characterized in that a rubber sheet (2041) is provided at the bottom of the bottom plate (204), and the rubber sheet (2041) is adhesively fixed to the bottom plate (204).

8. The anchor drilling machine jet-grouting pressurization device according to claim 1, characterized in that two groups of hanging rings (1026) are symmetrically arranged at the top of the bottom plate (1025), and the hanging rings (1026) are connected with the bottom plate (1025) in one of welding and threaded connection.