CN214717758U - Pipe fitting rotating roller way with pressing roller - Google Patents

Abstract

The utility model relates to a rotatory roll table of pipe fitting of area pressure roller, including rotary mechanism (2), at least one pressure roller mechanism (3) that are used for bearing and rotatory pipe fitting (1) and control assembly (4) of being connected with rotary mechanism (2) and pressure roller mechanism (3) electricity respectively, rotary mechanism (2)'s side is located in pressure roller mechanism (3), pressure roller mechanism (3) include cylinder (5), be connected and rotatable compress tightly arm (6) and a pair of gyro wheel (7) of locating pressure arm (6) tip with cylinder (5) transmission, be equipped with the clearance with pipe fitting (1) looks adaptation between two gyro wheels (7). Compared with the prior art, the utility model discloses can avoid the pipe fitting crooked, prevent that the pipe fitting from beating for the coating film is thick even reliable, has improved the quality and the qualification rate of coating greatly.

Description

Pipe fitting rotating roller way with pressing roller

Technical Field

The utility model belongs to petroleum pipeline undercoating field, concretely relates to area compresses tightly rotatory roll table of pipe fitting of gyro wheel.

Background

With the development of economic technology, the technical standard of the anticorrosion industry is gradually improved, the long-acting protection purpose under the harsh environment is required, and the method generally adopts the steps of coating an anticorrosion layer on the surface of a pipe and increasing the thickness of the anticorrosion layer according to the actual situation. When the pipe is steel, pretreatment is required before coating the surface with the coating, and the pretreatment specifically comprises the following steps: firstly, carrying out thermal cleaning, carrying out high-temperature carbonization and evaporation on impurities such as grease and moisture on the surface of steel, then carrying out sand blasting on the thermally cleaned steel to meet the requirements of the degree of anchorage and the cleanliness, and then carrying out coating operation on the coating. The spraying process is undoubtedly a crucial step in all links in the coating technology, and the film thickness is required to be ensured to be uniform, the surface is smooth, and the defects of dew points, pinholes, shrinkage cavities and the like are avoided.

With the development of the industry, the application range of the coating technology is wider and wider, the application range can be from a large-diameter drill rod (such as a drill rod above 3 ") to a small-diameter oil casing pipe (such as an oil casing pipe of 2", 3/8 "or 1.9"), but the experience of the coating technology on the small-diameter oil casing pipe is relatively poor, so that more problems exist in the spraying process, and due to the fact that the small-diameter pipe is very light in weight and has high flexibility and winding degree, when the small-diameter pipe is rotated on a common rotating roller way, the pipe is easy to bend, the jumping and swinging are serious, and due to the fact that the weight is light and the friction force of a rotating wheel is small, the rotating speed is not uniform, and finally, the unqualified phenomena such as uneven film thickness and unsmooth surface exist in the longitudinal direction and the circumferential direction inside the pipe body are easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rotatory roll table of pipe fitting of gyro wheel is compressed tightly in area can avoid the pipe fitting bending, prevents that the pipe fitting from beating for the coating film is thick even reliable, has improved the quality and the qualification rate of coating greatly.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a rotatory roll table of pipe fitting of area pinch roller, is used for bearing the weight of and rotatory pipe fitting rotary mechanism, at least one pinch roller mechanism that is used for compressing tightly the pipe fitting and the control assembly who is connected with rotary mechanism and pinch roller mechanism electricity respectively, pinch roller mechanism locates rotary mechanism's side, pinch roller mechanism includes the cylinder, is connected and rotatable pinch arm with the cylinder transmission and a pair of gyro wheel of locating the tip of pinch arm, is equipped with the clearance with pipe fitting looks adaptation between two gyro wheels. The pipe fitting can be a large-caliber drill rod or a small-caliber oil casing pipe conveying pipe, and can be made of steel.

Compress tightly the arm including being the underarm and the upper arm of bending connection, underarm and cylinder are connected, the free end of upper arm outwards extends and is equipped with a pair of engaging lug, is equipped with the space that holds the gyro wheel between two engaging lugs, the engaging lug runs through along the axis direction of upper arm and is equipped with the recess, the both ends of gyro wheel be equipped with a connecting axle of recess looks adaptation, two gyro wheels set up along the axis direction interval of upper arm. The size structure of the pressing arm is designed through field surveying and mapping and simulation experiment structures, when the cylinder is retracted, the whole pressing roller mechanism is hidden below the rotating mechanism, normal passing of the pipe fitting is not affected, when the cylinder extends out, the pressing arm is overturned and buckled on the pipe fitting, friction between the pressing arm and the rotating wheel is increased, the pipe fitting is prevented from jumping, and the pipe fitting is stable and reliable in rotation.

The central line connecting line of the two rollers is coincident with the axis of the upper arm. The position clearance of the pressing roller is adjustable, and the production of pipe fittings with different pipe diameters is met.

The angle formed between the lower arm and the upper arm is obtuse.

The pressing roller mechanism further comprises a support frame, the support frame comprises a first support and a second support, the first support is vertically arranged, the second support is horizontally arranged, the first support is connected with the rotating mechanism, a paired first bearing seat is arranged on the second support, a free end of the lower arm is provided with a second connecting shaft which is used for being hinged with the first bearing seat, and a guide rod of the air cylinder is connected with the free end of the lower arm.

The pressing roller mechanism further comprises a cylinder base, and the cylinder is obliquely arranged on the cylinder base.

The rotating mechanism comprises a frame, a plurality of rotating wheel sets arranged along the length direction of the frame and a rotating motor connected with the rotating wheel sets in a transmission mode, wherein a pair of bearing seats is arranged on the frame, the output shaft of the rotating motor penetrates through the middle of the rotating wheel along the length direction of the frame and is connected with the bearing seats, each rotating wheel set comprises a pair of rotating wheels which are distributed in a staggered mode along the width direction of the frame in a left-right mode and in a front-back mode, namely the distance between the two rotating wheels is smaller than the sum of the radiuses of the two rotating wheels, and when a pipe fitting is arranged on the two rotating wheels, the circle center of the pipe fitting is located on a connecting line of an upper boundary of the two rotating wheels and a connecting line of the upper boundary and a lower boundary of the two rotating wheels, so that the stability of the pipe fitting is guaranteed. The area of the staggered overlapping part between the two rotating wheels can be set according to the size of a pipe fitting to be actually compressed, the rotating mechanism is suitable for internal coating operation of oil pipes, drill rods, oil sleeves and the like of various specifications, the structure is stable and reliable, and the rotating mechanism is a good foundation guarantee for the internal coating operation of the pipe fitting.

The rotating motor is a variable frequency motor, so that the rotating speed and the frequency of the pipe fitting can be adjusted finally, and the thickness and the uniformity of the coating in the pipe fitting can be adjusted.

The rotating mechanism further comprises a plurality of supporting rollers arranged along the length direction of the frame and three bearing seats arranged on two sides of the supporting rollers in pairs, the three bearing seats are arranged at the top of the frame, and the axes of the supporting rollers are perpendicular to the axis of the frame.

The frame includes last frame, underframe and a plurality of spliced pole of connecting upper frame and underframe, No. two bearing frames are located on the inside wall of last frame, No. three bearing frames are located the top of last frame.

The height of the junction of the two rotating wheels is higher than that of the top end of the upper frame, and the supporting roller is located between the top end of the upper frame and the top end of the rotating wheels.

The control assembly comprises a frequency converter, an electromagnetic directional valve and a central control center. The utility model discloses a drive includes electronic and pneumatics, and is electronic for motor drive, and pneumatics is cylinder drive, and the rotatory frequency of converter control rotating electrical machines, and then control rotary mechanism, and solenoid directional valve control cylinder, and then control pinch roller mechanism contains PLC control program in the well accuse center, is connected with converter, rotating electrical machines, solenoid directional valve and cylinder electricity, can unify and adjust each item parameter, and whole spraying operation is accomplished in the cooperation.

The outer diameter of the pipe fitting is not more than 70mm, and the length of the pipe fitting is 8-12 m.

The utility model discloses a nestification is used in whole petroleum pipeline undercoating production line, turns into rotary mechanism by panel turnover mechanism with the pipe fitting after, compresses tightly the arm and can overturn automatically and then compress tightly the pipe fitting under the control of control assembly and power unit (be the cylinder promptly), and the pipe fitting carries out the spraying operation when rotating through rotary mechanism, accomplishes the spraying after, and the stop rotation compresses tightly the arm and loosens, and the pipe fitting overturns next station, accomplishes the spraying process. The surface of two gyro wheels is the solid shape, and the surface of pipe fitting also is the arc, and consequently the pipe fitting is at rotatory in-process, with two gyro wheels looks sliding contact, can not influence the rotation of pipe fitting because of compressing tightly of gyro wheel, it is crooked to compress tightly gyro wheel mechanism, and the frictional force between multiplicable pipe fitting and the swiveling wheel, prevents that the pipe fitting from beating, makes the pipe fitting even at spraying in-process rotational speed, and is rotatory reliable and stable for the coating film is thick evenly reliable, has improved the quality and the qualification rate of coating greatly, moreover the utility model discloses also can use when rotatory unstable phenomenon appears in the heavy-calibre pipe fitting.

Drawings

FIG. 1 is a schematic structural view of a pipe placed on a pipe rotating roller bed;

FIG. 2 is a schematic view of a tube;

FIG. 3 is a schematic cross-sectional view of a tube;

FIG. 4 is a schematic structural view of the rotating mechanism;

fig. 5 is a schematic structural view of the pinch roller mechanism.

In the figure: 1-a pipe fitting; 2-a rotating mechanism; 3-a pressing roller mechanism; 4-a control component; 5-air cylinder; 501-a cylinder base; 6-a pressing arm; 601-a lower arm; 602-upper arm; 603-connecting lugs; 604-a groove; 605-connecting shaft II; 7-a roller; 701-connecting shaft I; 8-a support frame; 801-a first scaffold; 802-a second support; 803-bearing seat I; 9-a frame; 901-an upper frame; 902-a lower frame; 903-connecting column; 10-a rotating wheel set; 1001-first rotating wheel; 1002-rotating wheel II; 11-a rotating electrical machine; 1101-an output shaft; 12-a support roll; 13-bearing seat III.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Examples

As shown in FIGS. 2 and 3, a pipe member 1 has an outer diameter of not more than 70mm and a length of 8 to 12m, preferably 10 m. As shown in fig. 1, 4 and 5, a pipe fitting rotating roller way with a pressing roller is used for pressing the pipe fitting 1, the pipe fitting rotating roller way comprises a rotating mechanism 2 for bearing and rotating the pipe fitting 1, at least one pressing roller mechanism 3 for pressing the pipe fitting 1 and a control assembly 4 electrically connected with the rotating mechanism 2 and the pressing roller mechanism 3 respectively, the pressing roller mechanism 3 is arranged on the side surface of the rotating mechanism 2, and the control assembly 4 comprises a frequency converter, an electromagnetic directional valve and a central control center.

As shown in fig. 4, the rotating mechanism 2 includes a frame 9, a plurality of rotating wheel sets 10 disposed along the length direction of the frame 9, a rotating motor 11 in transmission connection with the rotating wheel sets 10 (the rotating motor 11 is a variable frequency motor), and a plurality of supporting rollers 12 disposed along the length direction of the frame 9 (the distance between adjacent supporting rollers 12 is set according to the actual situation, in this embodiment, three supporting rollers 12 with unequal distances are exemplarily drawn), the frame 9 includes an upper frame 901, a lower frame 902, and a plurality of connecting posts 903 connecting the upper frame 901 and the lower frame 902, the control component 4 is disposed between the upper frame 901 and the lower frame 902 and is fixedly connected to one of the connecting posts 903, two opposite inner side walls of the upper frame 901 are provided with paired No. two bearing seats, the top of the upper frame 901 is provided with a plurality of paired No. three bearing seats 13, the axes of the supporting rollers 12 are perpendicular to the axis of the frame 9, two ends of a supporting roller 12 are respectively connected with a third bearing seat 13, an output shaft 1101 of a rotating motor 11 penetrates through the middle of the rotating wheel along the length direction of the frame 9 and is connected with a second bearing seat, each rotating wheel group 10 comprises a pair of rotating wheels which are staggered one behind the other along the width direction of the frame 9, the rotating wheels comprise a first rotating wheel 1001 and a second rotating wheel 1002 (see figure 4 in detail), the two rotating wheels are displayed with overlapped parts in the side view direction, the overlapped parts comprise junctions positioned above, a pipe fitting 1 is contacted with the junctions positioned above, in the embodiment, four rotating wheel groups 10 are exemplarily drawn, the front and back distances and the overlapped parts of the first rotating wheel 1001 and the second rotating wheel 1002 are set according to the actual situation, the height of the junctions of the two rotating wheels is higher than that of the top end of the upper frame 901, the supporting roller 12 is positioned between the top end of the upper frame 901 and the top end of the rotating wheel, the top of the support rollers 12 is generally at the same height as the intersection of the two rotating wheels. The specific structure of the rotating mechanism 2 is set with reference to an existing apparatus.

As shown in fig. 5, the pressing roller mechanism 3 includes a cylinder base 501, a cylinder 5, a support frame 8, a pressing arm 6 which is in transmission connection with the cylinder 5 and can rotate, and a pair of rollers 7 which are arranged at the end of the pressing arm 6, the cylinder base 501 is fixed on the ground, the cylinder 5 is obliquely arranged on the cylinder base 501, the support frame 8 includes a first bracket 801 which is vertically arranged (the first bracket 801 is H-shaped) and a second bracket 802 which is horizontally arranged, the first bracket 801 is connected with one of the connecting posts 903, the second bracket 802 is provided with a pair of bearing seats 803, the pressing arm 6 includes a lower arm 601 and an upper arm 602 which are in bending connection (in this embodiment, the angle formed between the lower arm 601 and the upper arm 602 is obtuse), the free end of the lower arm 601 is provided with a second connecting shaft 605 which is used for being hinged with the first bearing seat 803, a guide rod of the cylinder 5 is connected with the free end of the lower arm 601, the free end of the upper arm 602 extends outwards to be provided with a pair of connecting lugs 603, a space for accommodating the roller 7 is arranged between the two connecting lugs 603, the connecting lugs 603 penetrate through and are provided with grooves 604 along the axis direction of the upper arm 602, two ends of the roller 7 are provided with a first connecting shaft 701 which is matched with the grooves 604 (the end part of the first connecting shaft 701 can fix the roller 7 on the connecting lugs 603 through fasteners such as bolts and the like), the two rollers 7 are arranged at intervals along the axis direction of the upper arm 602, the size of the gap is arranged according to the outer diameter of the pipe fitting 1, and the central line of the two rollers 7 is overlapped with the axis of the upper arm 602. The size, the installation position and the clearance among all the components of the pressing roller mechanism 3 are repeatedly and strictly calculated and designed, so that the matching use of the mechanical structure and the size of other accessories is met.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims (10)

1. The utility model provides a rotatory roll table of pipe fitting of area pressure roller, its characterized in that, including rotary mechanism (2) that are used for bearing and rotatory pipe fitting (1), at least one pressure roller mechanism (3) that are used for compressing tightly pipe fitting (1) and respectively with rotary mechanism (2) and pressure roller mechanism (3) electric control assembly (4), rotary mechanism (2)'s side is located in pressure roller mechanism (3), pressure roller mechanism (3) include cylinder (5), be connected and rotatable pressure arm (6) and a pair of gyro wheel (7) of locating pressure arm (6) tip with cylinder (5) transmission, be equipped with the clearance with pipe fitting (1) looks adaptation between two gyro wheels (7).

2. The pipe fitting rotating roller way with the pressing rollers according to claim 1, wherein the pressing arms (6) comprise a lower arm (601) and an upper arm (602) which are connected in a bending mode, the lower arm (601) is connected with the cylinder (5), a pair of connecting lugs (603) are arranged at the free end of the upper arm (602) in an outward extending mode, a space for accommodating the rollers (7) is formed between the two connecting lugs (603), a groove (604) penetrates through the connecting lugs (603) along the axial direction of the upper arm (602), a first connecting shaft (701) matched with the groove (604) is arranged at two ends of each roller (7), and the two rollers (7) are arranged at intervals along the axial direction of the upper arm (602).

3. The pipe rotary table with pinch rollers of claim 2, wherein the angle formed between the lower arm (601) and the upper arm (602) is obtuse.

4. The pipe fitting rotating roller way with the pressing roller according to claim 2, wherein the pressing roller mechanism (3) further comprises a support frame (8), the support frame (8) comprises a first support (801) and a second support (802), the first support (801) is vertically arranged, the second support (802) is horizontally arranged, the first support (801) is connected with the rotating mechanism (2), paired first bearing seats (803) are arranged on the second support (802), a second connecting shaft (605) which is hinged to the first bearing seats (803) is arranged at the free end of the lower arm (601), and a guide rod of the air cylinder (5) is connected with the free end of the lower arm (601).

5. The pipe fitting rotating roller way with the pressing roller according to claim 1, wherein the pressing roller mechanism (3) further comprises a cylinder base (501), and the cylinder (5) is obliquely arranged on the cylinder base (501).

6. The pipe fitting rotating roller way with the pressing rollers according to claim 1, wherein the rotating mechanism (2) comprises a frame (9), a plurality of rotating wheel sets (10) arranged along the length direction of the frame (9) and a rotating motor (11) in transmission connection with the rotating wheel sets (10), the frame (9) is provided with a pair of bearing seats, an output shaft (1101) of the rotating motor (11) penetrates through the middle of the rotating wheel along the length direction of the frame (9) and is connected with the bearing seats, and each rotating wheel set (10) comprises a pair of rotating wheels which are distributed in a staggered manner along the left-right direction and the front-back direction of the width direction of the frame (9).

7. The pipe rotating roller way with the pressing rollers according to claim 6, wherein the rotating motor (11) is a variable frequency motor.

8. The pipe fitting rotating roller way with the pressing rollers as claimed in claim 6, wherein the rotating mechanism (2) further comprises a plurality of supporting rollers (12) arranged along the length direction of the frame (9) and third bearing seats (13) arranged on two sides of the supporting rollers (12) in pairs, the third bearing seats (13) are arranged on the top of the frame (9), and the axes of the supporting rollers (12) are perpendicular to the axes of the frame (9).

9. The pipe fitting rotating roller way with the pressing rollers as claimed in claim 8, wherein the frame (9) comprises an upper frame (901), a lower frame (902) and a plurality of connecting columns (903) connecting the upper frame (901) and the lower frame (902), the second bearing seat is arranged on the inner side wall of the upper frame (901), and the third bearing seat (13) is arranged at the top of the upper frame (901).

10. The pipe rotating roller way with the pressing rollers according to claim 1, wherein the control assembly (4) comprises a frequency converter, an electromagnetic directional valve and a central control center.

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