CN219336038U

CN219336038U - Automatic drilling equipment for large-curvature bent pipe

Info

Publication number: CN219336038U
Application number: CN202320937375.5U
Authority: CN
Inventors: 魏金玲; 张建国; 张建营; 刘博�
Original assignee: Huludao Guohua Energy Equipment Group Co ltd
Current assignee: Huludao Guohua Energy Equipment Group Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-07-14
Anticipated expiration: 2033-04-24

Abstract

The utility model discloses automatic drilling equipment for a large-curvature bent pipe, and relates to the technical field of pipeline drilling. The equipment comprises an automatic travelling mechanism, a drilling mechanism, a PLC (programmable logic controller), a pipeline bracket and a guide rod; the large curvature bent pipe is placed on the pipeline bracket, the guide rod and the large curvature bent pipe are concentric and have the same central angle, the guide rod is provided with an automatic travelling mechanism in rolling connection, the automatic travelling mechanism is provided with a drilling mechanism, and the drilling mechanism and the automatic travelling mechanism are respectively in communication connection with the PLC controller. The device uses the guide rod to limit the track of the automatic travelling mechanism by the guide rod at the same angle as the center of the pipe, so that the track of the drilling mechanism coincides with the pipe, the travelling time of the automatic travelling mechanism is controlled by the PLC, the travelling time is determined by the diameter of the wheels, the rotating speed and the hole spacing, the automatic travelling mechanism stops travelling to perform drilling operation after the specified time is reached, the same hole spacing can be ensured when the travelling time is the same each time, and equidistant drilling of the pipe with large curvature can be realized rapidly and efficiently.

Description

Automatic drilling equipment for large-curvature bent pipe

Technical Field

The utility model relates to the technical field of pipeline drilling, in particular to automatic drilling equipment for a large-curvature bent pipe.

Background

The pipelines of the existing storage tank and spherical tank fire-fighting spraying device are mostly large-curvature bent pipes, uniform holes are formed in the large-curvature bent pipes, nozzle stubs are welded at the holes, one ends of the nozzle stubs are welded at the holes of the large-curvature bent pipes, threads are machined at the other ends of the nozzle stubs, and the nozzle stubs are connected with the nozzles.

The length of the spray large-curvature bent pipe is generally 6-8 meters, and flanges are welded at two ends of the bent pipe respectively. Equidistant nozzle water outlets are machined in the bent pipe, the bent pipe with large curvature is firstly placed on a scribing platform, money is scribed by a bench worker, and then the water outlets are cut out by air. The punching method needs a very large scribing platform, and hole lines are drawn on each pipeline, so that the punching method is very troublesome, low in efficiency, low in machining precision of gas-cutting holes and nonuniform in size.

Chinese patent publication No. CN115870401a discloses a pipe perforating device, including workstation and drift, the workstation surface is equipped with pipe fixing device, and the pipe fitting that can handle includes straight tube and return bend, but it can only be in a certain part drilling to can not include automatic equidistance drilling, still need draw the hole line, the drilling effect is lower.

Disclosure of Invention

In order to solve the technical problems, the utility model provides automatic drilling equipment for a large-curvature bent pipe, which utilizes a concentric guide rod to limit the path of an automatic travelling mechanism, and realizes automatic equidistant drilling by controlling the pitch of holes through travelling time.

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

the automatic drilling equipment for the large-curvature bent pipe comprises an automatic travelling mechanism, a drilling mechanism, a PLC (programmable logic controller), a pipeline bracket and a guide rod; the large curvature bent pipe is placed on the pipeline bracket, the guide rod and the large curvature bent pipe are concentric and have the same central angle, the guide rod is provided with an automatic travelling mechanism in rolling connection, the automatic travelling mechanism is provided with a drilling mechanism, and the drilling mechanism and the automatic travelling mechanism are respectively in communication connection with the PLC controller.

Compared with the prior art, the utility model has the beneficial effects that: the device uses the guide rod to limit the walking route of the automatic walking mechanism by the guide rod at the same angle with the center of the bent pipe, so that the walking route of the drilling mechanism coincides with the bent pipe, the walking time of the automatic walking mechanism is controlled by the PLC, the walking time is determined by the diameter of the wheels, the rotating speed and the hole spacing, the automatic walking mechanism stops walking to carry out drilling operation after the specified time is ensured, the same hole spacing can be ensured each time of the walking time, and the equidistant drilling of the bent pipe with large curvature can be realized rapidly and efficiently.

The preferable scheme of the utility model is as follows:

the two ends of the guide rod are respectively connected to the foundation platform through flanges, and the guide rod is sleeved with a guide sleeve in sliding connection.

The automatic travelling mechanism comprises wheels, a frame and a driving motor, wherein the PLC is in communication connection with the driving motor, the driving motor is arranged on the frame, the wheels which are symmetrically arranged are respectively arranged on two sides of the frame, and the lower end face of the frame is fixedly connected with the guide sleeve, so that the automatic travelling mechanism can travel along the guide rod.

The drilling mechanism comprises a magnetic drill base, a magnetic drill motor and a magnetic drill, wherein the magnetic drill base is fixed on the automatic travelling mechanism, the middle part of the magnetic drill base is magnetically connected with the magnetic drill, the magnetic drill motor is arranged on the upper part of the magnetic drill base, and the magnetic drill motor is in communication connection with the PLC.

The bending pipe fixing flange comprises a bending pipe fixing flange bracket and a connecting flange, wherein the bending pipe flange is respectively fixed at two ends of the large-curvature bending pipe, the bending pipe flange is detachably connected with the connecting flange, and the connecting flange is fixed on the bending pipe fixing flange bracket.

The pipeline bracket comprises a support, a screw and a bracket, wherein the support is arranged on the foundation platform, the top of the support is in threaded connection with the screw, the bracket is fixed at the top end of the screw, and the bracket supports the large-curvature bent pipe.

Drawings

Fig. 1 is a schematic front view of an automatic drilling apparatus for a large-curvature bent pipe according to an embodiment of the present utility model;

fig. 2 is a schematic top view of an automatic drilling apparatus for a large-curvature bent pipe according to an embodiment of the present utility model;

fig. 3 is a schematic top view of a drilling mechanism according to an embodiment of the present utility model;

marked in the figure as: 1. bending the pipe; 2. a conduit bracket; 3. a bent pipe fixing flange bracket; 31. a connecting flange; 4. a wheel; 5. a frame; 6. a driving motor; 7. a magnetic drill base; 8. a magnetic drill; 9. a magnetic drill motor; 10. a PLC controller; 11. a guide rod; 12. guide sleeve; 13. a magnetic drill lifting motor; 14. a slide; 15. a driven rack; 16. a driving gear.

Detailed Description

The present utility model will be described in detail with reference to the following embodiments for a full understanding of the objects, features and effects of the present utility model, but the present utility model is not limited thereto.

Referring to fig. 1 and 2, the automatic drilling equipment for the large-curvature bent pipe provided by the utility model comprises an automatic travelling mechanism, a drilling mechanism, a PLC (programmable logic controller) 10, a pipeline bracket 2, bent pipe fixing flange brackets 3, a connecting flange 31, a guide rod 11, a guide sleeve 12 and the like, wherein flanges are welded at two ends of the large-curvature bent pipe 1 respectively, the flanges are detachably connected with the connecting flange 31 through bolts, the connecting flange 31 is fixed on the bent pipe fixing flange brackets 3, the bent pipe fixing flange brackets 3 are placed on a basic platform, and a plurality of pipeline brackets 2 are placed between the two bent pipe fixing flange brackets 3. The pipeline bracket is preferably a clamping type pipeline bracket, the pipeline bracket 2 is composed of a support, a screw rod, a hoop and the like, the support is placed on a basic platform, a hole with internal threads is formed in the top surface of the support or a threaded sleeve is welded, the connection between the support and the screw rod is realized through the threaded hole or the threaded sleeve, one half of the hoop is fixed at the upper end of the screw rod, the other half of the hoop is connected onto the screw rod through a bolt, and the hoop is used for supporting and fixing the large-curvature bent pipe 1.

The guide rod 11 concentric with the large-curvature bent pipe 1 is also erected on the basic platform, the central angle of the guide rod 11 is the same as that of the large-curvature bent pipe, the guide rod 11 is sleeved with the guide sleeve 12 in sliding connection, and the guide sleeve 12 is fixedly connected with the automatic travelling mechanism.

The automatic travelling mechanism consists of wheels 4, a frame 5, driving motors 6 and the like, wherein the wheels 4 are symmetrically arranged on two sides of the frame 5, the driving motors 6 are arranged on the frame 5, the driving motors 6 are in transmission connection with one of the wheels 4, the driving motors 6 are in communication connection with a PLC (programmable logic controller) 10, and the PLC 10 is used for controlling the start and stop of the driving motors 6. The lower end surface of the frame 5 is connected with a guide sleeve 12, and the guide sleeve 12 is used for limiting the track of the automatic travelling mechanism. The specific connection structure of the wheel 4, the connection mechanism of the wheel 4 and the driving motor 6, and the PLC control principle are all well known in the art and will not be described in detail herein.

The drilling mechanism is fixed on the frame 5 and comprises a magnetic drill base 7, a magnetic drill motor 8, a magnetic drill 9 and the like, the magnetic drill base 7 is fixed on the frame 5, the center of a magnetic drill main shaft is positioned on the central axis of the large-curvature bent pipe 1, the upper part of the magnetic drill base 7 is magnetically attracted with the magnetic drill 8, the magnetic drill motor 9 is installed at the top of the magnetic drill base 7, the magnetic drill lifting motor 13 is installed on the side face of the magnetic drill base 7, and the magnetic drill motor 9 and the magnetic drill lifting motor 13 are all in communication connection with the PLC controller 10. The magnetic drill motor 9 is in transmission connection with the magnetic drill 8 through a main shaft and the like, so that the magnetic drill motor 9 is ensured to work to drive the magnetic drill 8 to rotate at a high speed. As shown in fig. 3, the magnetic drill motor 9, the main shaft and the magnetic drill are jointly installed on a sliding seat 14, the sliding seat 14 is in sliding connection with a vertical support arm of the magnetic drill base 7, a driven rack 15 is fixed on the side wall of the sliding seat 14, a magnetic drill lifting motor 13 is arranged on one side of the sliding seat 14, a driving gear 16 is installed at the output end of the magnetic drill lifting motor 13, the driving gear 16 is meshed with the driven rack 15, the magnetic drill lifting motor 13 is started to drive the driving gear 16 to rotate, so that the driven rack 15 and the sliding seat 14 are driven to move, and the magnetic drill motor and the magnetic drill are integrally moved up and down. The connection of the magnetic drill motor 9, the magnetic drill lifting motor 13 and the magnetic drill 8 is well known in the art and will not be described in detail here.

The working process comprises the following steps:

drawing lines on a basic platform according to the curvature radius of the large-curvature bent pipe 1, fixing bent pipe fixing flange brackets 3 at two ends, connecting a flange of the large-curvature bent pipe 1 to be drilled with a connecting flange 31, placing a pipeline bracket 2 at the bottom of the bent pipe 1, pressing the bent pipe by using a hoop to prevent vibration in the processing process, and adjusting the arrangement interval of the pipeline bracket 2 to be 1-1.5 m to a required height;

determining the position of the magnetic drill 8, fixing supporting seats at two ends of the guide rod 11, and connecting the guide rod 11 to the supporting seats through flanges;

the automatic travelling mechanism is connected with a guide rod 11 through a guide sleeve 12, a magnetic drill base 7 is fixed on a frame 5 of the automatic travelling mechanism (through bolt connection), and then a magnetic drill 8 is sucked on the magnetic drill base 7;

connecting a control line of a magnetic drill motor 9 and a control line of a driving motor 6 of the automatic travelling mechanism to a PLC (programmable logic controller) 10, starting the driving motor 6 of the automatic travelling mechanism, stopping running after the driving motor runs to a first processing station (calculating travelling time according to the rotation speed and the diameter of a wheel), starting the magnetic drill motor 9 to start drilling (setting the rotation speed and the processing time according to the size of a hole) for a specified time, stopping running and resetting; repeating the above actions after the first hole is machined until all the holes are machined.

Finally, it should be noted that: the above list is only a preferred embodiment of the present utility model, and it is understood that those skilled in the art can make modifications and variations thereto, and it is intended that the present utility model be construed as the scope of the appended claims and their equivalents.

Claims

1. An automatic drilling device for a large-curvature bent pipe comprises an automatic travelling mechanism, a drilling mechanism, a PLC (programmable logic controller), a pipeline bracket and a guide rod; the automatic pipe bending machine is characterized in that a large-curvature bent pipe is placed on a pipe bracket, a guide rod and the large-curvature bent pipe are concentric and have the same central angle, an automatic travelling mechanism in rolling connection is arranged on the guide rod, a drilling mechanism is arranged on the automatic travelling mechanism, and the drilling mechanism and the automatic travelling mechanism are respectively in communication connection with a PLC controller.

2. The automatic drilling equipment for the large-curvature bent pipe according to claim 1, wherein two ends of the guide rod are respectively connected to the base platform through flanges, and the guide rod is sleeved with a guide sleeve in sliding connection.

3. The automatic drilling equipment for the large-curvature bent pipe according to claim 2, wherein the automatic travelling mechanism comprises wheels, a frame and a driving motor, the PLC is in communication connection with the driving motor, the driving motor is arranged on the frame, the wheels which are symmetrically arranged are respectively arranged on two sides of the frame, and the lower end face of the frame is fixedly connected with the guide sleeve, so that the automatic travelling mechanism can travel along the guide rod.

4. The automatic drilling equipment for the large-curvature bent pipe according to claim 1, wherein the drilling mechanism comprises a magnetic drill base, a magnetic drill motor and a magnetic drill, the magnetic drill base is fixed on the automatic traveling mechanism, the magnetic drill is magnetically connected to the middle part of the magnetic drill base, the magnetic drill motor is arranged on the upper part of the magnetic drill base, and the magnetic drill motor is in communication connection with the PLC.

5. The automatic drilling equipment for the large-curvature bent pipe according to claim 1, further comprising a bent pipe fixing flange bracket and a connecting flange, wherein bent pipe flanges are respectively fixed at two ends of the large-curvature bent pipe, the bent pipe flanges are detachably connected with the connecting flange, and the connecting flange is fixed on the bent pipe fixing flange bracket.

6. The automated pipe bending drilling apparatus of claim 1, wherein the pipe carrier comprises a support, a screw, and a carrier, the support being mounted on the base platform, the top of the support being threadably connected to the screw, the top of the screw securing the carrier, the carrier supporting the pipe bending.