CN204842107U - Even device of scribbling of seamless steel pipe inner wall - Google Patents

Abstract

The utility model relates to the technical field of seamless steel pipe equipment, in particular to a uniform coating device for the inner wall of a seamless steel pipe, comprising: a flat car, a plastic coating device and a supporting device. , the walking wheels are linked through the wheel shaft, the driving motor is provided on the supporting base plate, the output end of the driving motor drives the wheel shaft through the belt to drive the flat car to move, and a supporting frame is also provided on the supporting base plate, and the fixing device for fixing the steel pipe is fixed on the supporting frame. The plastic coating device includes a liquid tank, a hydraulic pump, a spray pipe and a spray head. The liquid inlet of the hydraulic pump communicates with the liquid tank through a pipeline, and the liquid outlet of the hydraulic pump communicates with the spray head through the spray pipe. The uniform coating device for the inner wall of the seamless steel pipe of the utility model drives the steel pipe to move through the uniform motion of the flat car, so that the steel pipe and the nozzle form a relatively uniform motion, and the nozzle rolls relative to the inner wall of the steel pipe through the wheel set, so that the nozzle can always be in the position The middle position makes the coating film more uniform.

Description

Seamless steel pipe inner wall uniform coating device

technical field

The utility model relates to the technical field of seamless steel pipe equipment, in particular to a uniform coating device for the inner wall of a seamless steel pipe.

Background technique

With the rapid development of national economic construction and the gradual improvement of urban infrastructure, the demand for various types of steel is increasing, and seamless steel pipes are widely used in industrial production, urban construction and other fields. Seamless steel pipes have a hollow cross-section and are widely used as pipes for transporting fluids, such as pipes for transporting oil, natural gas, gas, water, and certain solid materials. Due to the condition that the circumference is equal, the area of the circle is the largest, and more fluid can be transported with a circular tube. In addition, when the ring section bears internal or external radial pressure, the force is relatively uniform. However, round pipes also have certain limitations, and it is often necessary to plastic-coat the inside of the steel pipe.

Plastic-coated steel pipe is a kind of pipe that protects the inner wall of the steel pipe by thermally melting a layer of plastic layer on the inner or outer wall of the steel pipe with a plastic coating process. However, the quality of the plastic coating of the plastic-coated steel pipe directly determines the service life of the steel pipe. The advanced plastic coating equipment is complicated, and the coating film is not uniform enough, and the service life of the plastic coated steel pipe is short.

Utility model content

The technical problem to be solved by the utility model is: in order to solve the problems that the existing plastic-coating equipment is complicated, the coating film is not uniform enough, and the service life of the plastic-coated steel pipe is short, the utility model provides a uniform coating device for the inner wall of a seamless steel pipe , the steel pipe moves through the uniform motion of the flat car, so that the steel pipe and the nozzle form a relatively uniform motion, and the nozzle rolls relative to the inner wall of the steel pipe through the wheel set, so that the nozzle is always in the middle position, making the coating more uniform and coating Plastic equipment is simple and easy to use.

The technical solution adopted by the utility model to solve the technical problem is: a uniform coating device for the inner wall of a seamless steel pipe, including: a flat car for driving the steel pipe to move horizontally, a plastic coating device for coating the inner wall of the steel pipe, and a flat car installed on the flat The supporting device for supporting the steel pipe between the car and the plastic coating device,

The flat car includes a supporting base plate, four traveling wheels are arranged under the supporting base plate, and the traveling wheels are linked through the axles, and the supporting base plate is provided with a driving motor for driving the flat car, and the output end of the driving motor is driven by a belt to drive the wheel shaft. The flat car moves, and a support frame is also arranged on the support base plate, and a fixing device for fixing steel pipes is fixed on the support frame,

The plastic coating device includes a liquid tank for storing resin, a hydraulic pump for spraying resin, a spray pipe and a spray head, the liquid inlet of the hydraulic pump communicates with the liquid tank through a pipeline, and the liquid outlet of the hydraulic pump passes through The nozzle is connected with the nozzle,

The spray head includes a body and a head, the body is provided with a resin main channel, and the head is provided with a number of evenly distributed spray channels for spraying, the main channel communicates with the spray channel, The outer wall of the body is provided with at least two sets of wheels, and each wheel set includes at least three rotating wheels, and the rotating wheels of each set are evenly distributed on the outer wall of the body.

In order to ensure that the steel pipe is always maintained on a horizontal plane, two sets of supporting devices are arranged between the flat car and the plastic coating device.

Preferably, the support device includes two vertical columns, and rollers arranged between the two columns to facilitate the movement of the steel pipe.

Specifically, the fixing device is a three-jaw chuck.

Preferably, the nozzle is a rubber hose.

Preferably, a running track is provided under the flat car.

Preferably, the axis of the spray channel perpendicularly intersects the axis of the main channel.

Preferably, the head is provided with eight spray channels.

Preferably, the outer wall of the body is provided with two sets of wheels.

Preferably, each wheel set includes three rotating wheels.

The beneficial effects of the utility model are: the uniform coating device for the inner wall of the seamless steel pipe provided by the utility model drives the steel pipe to move through the uniform motion of the flat car, so that the steel pipe and the nozzle form a relatively uniform motion, and the nozzle passes through the wheel group and The inner wall of the steel pipe is relatively rolling, which can keep the nozzle in the middle position all the time, so that the coating film is more uniform, and the plastic coating equipment is simple and easy to use.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the seamless steel pipe inner wall uniform coating device of the utility model;

Fig. 2 is the structural representation of the nozzle of the utility model;

Fig. 3 is a sectional view taken along line A-A of Fig. 2 .

In the figure: 1. Steel pipe, 2. Flat car, 3. Plastic coating device, 4. Support device, 5. Support base plate, 6. Traveling wheel, 7. Axle, 8. Drive motor, 9. Belt, 10. Support frame , 11. Liquid tank, 12. Hydraulic pump, 13. Nozzle, 14. Nozzle, 15. Pipeline, 16. Column, 17. Roller, 18. Three-jaw chuck, 21. Walking track, 31. Body, 32. head, 33. main channel, 34. spray channel, 35. wheel set, 36. rotating wheel.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figures 1 to 3, a device for evenly coating the inner wall of a seamless steel pipe includes: a flat car 2 for driving the steel pipe 1 to move horizontally, a plastic coating device 3 for coating the inner wall of the steel pipe 1, and a flat car Two sets of supporting devices 4 for supporting the steel pipe 1 between 2 and the plastic coating device 3,

The flat car 2 includes a supporting base plate 5, four traveling wheels 6 are arranged under the supporting base plate 5, and the traveling wheels 6 are interlocked through the wheel shaft 7. The supporting base plate 5 is provided with a driving motor 8 for driving the flat car 2 to walk, and the output of the driving motor 8 The end drives the wheel shaft 7 through the belt 9 to drive the flat car 2 to move, and a support frame 10 is also provided on the support base plate 5, and a three-jaw chuck 18 for fixing the steel pipe 1 is fixed on the support frame 10.

The plastic coating device 3 includes a liquid tank 11 for storing resin, a hydraulic pump 12 for spraying resin, a spray pipe 13 and a nozzle 14, the liquid inlet of the hydraulic pump 12 communicates with the liquid tank 11 through a pipeline 15, and the outlet of the hydraulic pump 12 The liquid port communicates with the nozzle 14 through the nozzle 13,

Nozzle 14 comprises body 31 and head 32, and body 31 is provided with resin main passage 33, and head 32 is provided with several evenly distributed spray passages 34 for spraying, and main passage 33 communicates with spray passage 34 The outer wall of the body 31 is provided with at least two groups of wheel sets 35 , each wheel set 35 includes at least three rotating wheels 36 , and the rotating wheels 36 of each group are evenly distributed on the outer wall of the body 31 .

In a specific embodiment, the support device 4 includes two vertical columns 16 and rollers 17 arranged between the two columns 16 to facilitate the movement of the steel pipe 1 .

In a specific embodiment, in order to facilitate the entry and withdrawal of the nozzle 14 in the pipe, the nozzle pipe 13 is a rubber hose.

In a specific embodiment, a running track 21 is provided under the flat car 2 .

In a specific embodiment, the axis of the spray channel 34 perpendicularly intersects the axis of the main channel 33 .

In this specific embodiment, as shown in Fig. 2 and Fig. 3, the head 32 of nozzle 14 is provided with eight spray channels 34, and the outer wall of body 31 is provided with two sets of wheels 35, and each wheel set 35 includes three Turn the wheel 36 .

The method of use is as follows: first erect one end of the seamless steel pipe 1 on the supporting device 4, and fix the other end with a three-jaw chuck 18, and then insert the end of the steel pipe 1 erected on the supporting device 4 into the nozzle 14 and the nozzle 13 , so that the rotating wheel 36 of the nozzle 14 is tangent to the inner wall of the steel pipe 1, so that the nozzle 14 is always kept at the center of the steel pipe 1, and the steel pipe 1 moves to the plastic coating device 3 under the drive of the flat car 2 to the limit position. At this time, the nozzle 14 Located at the end of the three-jaw chuck 18, turn on the hydraulic pump 12 to make the nozzle 14 spray resin, and at the same time make the flat car 2 move along the running track 21 away from the plastic coating device 3 until the nozzle 14 is pulled out from the steel pipe 1, and the hydraulic pressure is stopped. The pump 12 and the flat car 2 complete the plastic coating work on the inner wall of the steel pipe 1.

Inspired by the above-mentioned ideal embodiment according to the utility model, and through the above-mentioned description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (10)

1. the even coating device of seamless steel pipe internal wall, it is characterized in that comprising: the flatcar (2) moved horizontally for driving steel pipe (1), for the plastic-coated device (3) of plastic-coated steel (1) inwall and the bracing or strutting arrangement for supporting steel pipe (1) (4) that is arranged between flatcar (2) and plastic-coated device (3)

Described flatcar (2) comprises support baseboard (5), support baseboard (5) has four road wheels (6), described road wheel (6) is linked by wheel shaft (7), support baseboard (5) is provided with the drive motors (8) for driving flatcar (2) to walk, the output of drive motors (8) drives flatcar (2) mobile by belt (9) live axle (7), described support baseboard (5) is also provided with a bracing frame (10), support frame as described above (10) is fixed with the fixture for fixing steel pipe (1),

Described plastic-coated device (3) comprise store resin liquid bath (11), for spraying the hydraulic pump (12) of resin, jet pipe (13) and shower nozzle (14), the inlet of described hydraulic pump (12) is communicated with liquid bath (11) by pipeline (15), the liquid outlet of described hydraulic pump (12) is communicated with shower nozzle (14) by jet pipe (13)

Described shower nozzle (14) comprises body (31) and head (32), resin main channel (33) is provided with in described body (31), several uniform, for spraying spray channel (34) are provided with in described head (32), described main channel (33) is communicated with spray channel (34), described body (31) lateral wall is provided with at least two group wheels (35), described each wheels (35) at least comprise three moving runners (36), and the described moving runner (36) often organized is distributed on body (31) lateral wall.

2. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: be provided with two groups of bracing or strutting arrangements (4) between described flatcar (2) and plastic-coated device (3).

3. the even coating device of seamless steel pipe internal wall as claimed in claim 1 or 2, it is characterized in that: described bracing or strutting arrangement (4) comprises two columns (16) vertically arranged, and is arranged on the roller (17) being convenient to steel pipe (1) movement between two columns (16).

4. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: described fixture is scroll chuck (18).

5. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: described jet pipe (13) is rubber hose.

6. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: described flatcar (2) has walking track (21).

7. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: the axis of described spray channel (34) and the intersect vertical axis of main channel (33).

8. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: described head (32) is provided with eight spray channel (34).

9. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: described body (31) lateral wall is provided with two groups of wheels (35).

10. the even coating device of seamless steel pipe internal wall as claimed in claim 1, is characterized in that: described each wheels (35) comprise three moving runners (36).