CN110773821B

CN110773821B - Portable device and method for machining external thread of gas cylinder of long-tube trailer

Info

Publication number: CN110773821B
Application number: CN201910927480.9A
Authority: CN
Inventors: 崔闻天; 张相相; 韩晓栋; 李振合; 潘刘良
Original assignee: Xinxing Energy Equipment Co Ltd
Current assignee: Xinxing Energy Equipment Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2021-04-20
Anticipated expiration: 2039-09-27
Also published as: CN110773821A

Abstract

The invention provides a portable long-tube trailer gas cylinder external thread machining method and device. The device comprises a mandrel guide rail 1, a rotary tool rest 2, a blade 3, a blade angle adjusting device 4, a radial feeding device 5, a motor 6, a nut 7, a pitch lead screw 8, a fixed mandrel device 9, a sliding conductive device 10, a handle 11 and a cable 12. The device is convenient to transport, quick to install, and capable of realizing external thread repair of the gas cylinder on a user site, and equipment is prevented from being returned to a factory for maintenance; the structure is small and exquisite, the operation is simple and convenient, the external thread repairing of the bottle mouth can be finished on the trailer, and the requirement on the professional performance of personnel is low; the thread repairing can be aligned with the original pitch of the gas cylinder for processing and repairing, the processing and cutting amount is small, and the strength of the gas cylinder opening is ensured to the maximum extent; the external threads of all the conventional trailer gas cylinders can be repaired by replacing the mandrel guide rail, the blade, the nut and the screw pitch screw rod accessories; the use requirement can be met by adopting a common place with a 220V alternating current power supply and small power, and the method is suitable for field processing of threads of all bottle-type containers.

Description

Portable device and method for machining external thread of gas cylinder of long-tube trailer

Technical Field

The invention belongs to the field of processing and repairing of external threads of a gas cylinder of a long-tube trailer.

Background

Along with the clean energy of natural gas increases, the long tube trailer quantity of transportation natural gas increases gradually every year, and vehicle in use gas cylinder external screw thread makes the gas cylinder external screw thread receive the not equidimension damage owing to receive rainwater corrosion, road jolt, gas cylinder fill dress expend with heat and contract with cold stress, vehicle travel in the cause such as wrench movement, causes the gas cylinder to rotate, gas cylinder pipe connection position not hard up traffic safety hidden danger such as gas leakage. Because the gas cylinder diameter is between 559mm to 720mm, and length is about 11 meters, and weight 3 to 5 tons, repair the gas cylinder screw thread and need go on special lathe, appear this kind of condition and can only return the trailer to the producer or send to and carry out repairing process to the gas cylinder external screw thread near long-tube trailer inspection station, the higher maintenance time of the freight of making a round trip is longer. For the reason, the portable long-tube trailer gas cylinder external thread machining device can be used for machining gas cylinders needing external thread repair on site, is simple in machine installation, fast in machining and accurate in size, and can meet the requirement of gas cylinder thread repair work on site with different specifications and sizes.

Disclosure of Invention

The invention aims to solve the problem that after the thread of the gas cylinder of the long-tube trailer is damaged, the gas cylinder needs to be returned to a factory and arrives at a detection station to be maintained by using a special machine tool.

Portable long tube trailer gas cylinder external screw thread processingequipment, its characterized in that: the device comprises a mandrel guide rail 1, a rotary tool rest 2, a blade 3, a blade angle adjusting device 4, a radial feeding device 5, a motor 6, a nut 7, a pitch lead screw 8, a fixed mandrel device 9, a sliding conductive device 10, a handle 11 and a cable 12.

The fixed mandrel device 9 comprises a chuck 9-1, a mandrel rod 9-2 and a fastening nut 9-3, wherein one end of the chuck 9-1 is provided with a long round hole and is connected with the mandrel rod 9-2 in a sliding and rotating mode, so that the chuck 9-1 slides and rotates relative to the mandrel rod 9-2 under the action of gravity, the length of the chuck 9-1 is larger than the diameter of a bottle mouth, the width of the chuck 9-1 is smaller than the diameter of a flat mouth, and the fastening nut 9-3 is arranged on the mandrel rod 9-2.

The mandrel guide rail 1 is of a hollow structure, the diameter of the middle through hole is smaller than that of the fastening nut 9-3, the diameter of the mandrel guide rail 1 is smaller than that of the bottle opening, a flange is arranged outside the mandrel guide rail, the outer diameter of the flange is larger than that of the bottle opening to be machined, the mandrel guide rail is matched with the fixed mandrel device 9 to form a fastening device,

the mandrel guide rail 1 is provided with a screw pitch lead screw 8, the lead screw 8, a nut 7 and a handle 11 form an axial feeding device, the helical axial feeding of the thread machining device along with a machining path can be realized through the rotation of the handle 11, the feeding amount is the same as that of the threads of the gas cylinder, and different lead screws 8 and nuts 7 can be replaced by different threads for adjustment.

The rotary tool rest 2 and the blade 3; a blade angle adjusting device 4; a radial feed device 5; the motor 6 forms a thread processing device;

the radial feeding device 5 can adjust the radial feeding amount of the blade, so that the processing blade can be adjusted in the radial direction.

The blade angle adjusting device 4 can adjust the angle of the blade and ensure that the angle of the blade is the same as the required angle of the thread of the gas cylinder;

the motor 6 can enable the processing blade to rotate to process the gas cylinder.

The rotary tool rest 2 is used for connection and fixation, and the thread machining device and the axial feeding device enable the thread machining device to move axially along with the axial feeding device.

The blade edge of the blade 3 is consistent with the thread specification of the gas cylinder to be processed.

The sliding conductive device 10 and the cable 12 form a power supply device for supplying power to the motor, so that the device can continuously supply power during the rotary machining process.

The technical idea and the technical effect adopted by the invention are as follows:

1. the device is convenient to transport, can be quickly installed to repair the external thread of the gas cylinder on the user site, and is free from equipment to be returned to the factory for maintenance.

2. The device has small and exquisite structure and simple and convenient operation, can finish the repair of the external thread of the bottle mouth on the trailer, and has smaller requirement on the professional performance of personnel.

3. The thread repairing device can be used for processing and repairing the original pitch of the gas cylinder, the processing cutting amount is small, and the strength of the gas cylinder opening is ensured to the maximum extent.

4. The device can repair the external threads of all the conventional trailer gas cylinders by replacing the mandrel guide rail, the blade, the nut and the screw pitch screw rod accessories.

5. The device can meet the use requirement by adopting a common place with a 220V alternating current power supply and smaller power.

Drawings

Fig. 1 is a schematic diagram of a portable external thread repairing device for a gas cylinder of a pipe trailer.

FIG. 2 is a schematic view of a fixed mandrel device

Wherein: a mandrel guide rail-1, a rotary tool rest-2 and a processing blade-3; blade angle adjusting means-4; a radial feed-5; a motor-6; 7, a nut; a screw pitch lead screw-8; a fixed mandrel device-9; a sliding conductive device-10; a handle-11; cable-12

Detailed Description

To further illustrate the contents, features and methods of use of the present invention, the following examples are given by way of illustration and are described in detail in conjunction with the accompanying drawings:

firstly, selecting a corresponding blade 3, a nut 7 and a screw pitch lead screw 8 according to the size of the internal thread and the external thread of the gas cylinder to be repaired and a repairing scheme.

And secondly, installing the mandrel guide rail 1 on the bottle opening, installing the fixed mandrel device 9 into the gas cylinder through the center of the mandrel guide rail 1, rotating to open the clamping head 9-1 under the action of gravity and enable the mandrel rod 9-2 to be in the middle position, pulling back the fixed mandrel device 9, and rotating to enable the clamping head 9-1 to be clamped in the gas cylinder due to the fact that the clamping head 9-1 is constantly smaller than the diameter of the gas cylinder at the bottle opening diameter, and fastening the outside of the gas cylinder by using a fastening nut 9-3 to enable the device to be integrally fixed on the gas cylinder.

And thirdly, mounting the rotary tool rest 2 on the mandrel guide rail 1, and mounting a required screw pitch lead screw 8 and a required screw nut 7.

And fourthly, installing the blade 3, adjusting the angle adjusting device 4 and the radial feeding device 5 according to the repairing requirement, and opening the motor 6 to shake the handle 11 to process the external thread surface of the gas cylinder.

And fifthly, after the external thread surface dimension of the gas cylinder is processed to be qualified, replacing the blade 3, and adjusting the blade angle adjusting device 4 to process and repair the thread.

And sixthly, according to the feed amount and the measurement result, the whole thread repairing can adopt a small feed amount multiple repairing process until the repairing requirement is met.

And seventhly, loosening the fastening nut 9-3, rotating the mandrel rod 9-2 by 180 degrees, enabling the chuck 9-1 to slide downwards under the action of gravity and enabling the mandrel rod 9-2 to be in the end position, drawing out the fixed mandrel device 9 and taking down the mandrel guide rail 1 to finish maintenance.

The terminology used in the description presented herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides a long tube trailer gas cylinder external screw thread processingequipment which characterized in that: the device comprises a fastening device, an axial feeding device, a thread machining device and a power supply device, wherein the fastening device comprises a mandrel guide rail and a fixed mandrel device; the fixed mandrel device comprises a chuck, a mandrel rod and a fastening nut, wherein one end of the chuck is provided with a long round hole and is connected with the mandrel rod in a sliding and rotating mode, so that the chuck slides and rotates relative to the mandrel rod under the action of gravity, the length of the chuck is greater than the diameter of a bottle opening, the width of the chuck is smaller than the diameter of the bottle opening, the mandrel guide rail is of a hollow structure, the diameter of a middle through hole is smaller than the diameter of the fastening nut, the diameter of the mandrel guide rail is smaller than the diameter of the bottle opening, a flange is arranged on; the axial feeding device comprises a lead screw, a nut and a handle, the lead screw and the nut are in threaded connection, spiral axial feeding of the thread machining device along a machining path is realized through rotation of the handle, and the feeding amount is matched with threads of the gas cylinder; the thread machining device comprises a rotary tool rest, a blade angle adjusting device, a radial feeding device and a motor, wherein the rotary tool rest is used for connecting and fixing the thread machining device and the axial feeding device, so that the thread machining device moves axially along with the action of the axial feeding device.

2. The apparatus of claim 1, wherein: the power supply device comprises a sliding conductive device and a cable.

3. The method of using the apparatus of claim 1, wherein:

firstly, selecting a corresponding blade, a corresponding pitch lead screw and a corresponding nut according to the size of the external thread of the gas cylinder to be repaired and a repairing scheme;

secondly, installing a mandrel guide rail on the bottle opening, installing the fixed mandrel device into the gas cylinder through the center of the mandrel guide rail, rotating to open the chuck under the action of gravity and enable the mandrel rod to be in the middle position, drawing back the fixed mandrel device, and fastening the outside by using a fastening nut to enable the device to be integrally fixed on the gas cylinder;

thirdly, mounting a rotary tool rest on a mandrel guide rail, and mounting a required pitch lead screw and a nut;

fourthly, installing a blade, adjusting an angle adjusting device and a radial feeding device of the blade according to the repairing requirement, and opening a motor to shake a handle to process the surface of the external thread of the gas cylinder;

fifthly, after the external thread surface dimension of the gas cylinder is processed to be qualified, replacing the blade, and adjusting the blade angle adjusting device to process and repair the thread;

sixthly, according to the feed amount and the measurement result, the whole thread repairing adopts a small feed amount multiple repairing process until the repairing requirement is met;

and seventhly, loosening the fastening nut, rotating the mandrel rod by 180 degrees, enabling the chuck to slide downwards under the action of gravity and enabling the mandrel rod to be in the end position, drawing out the fixed mandrel device and taking down the mandrel guide rail to finish maintenance.