CN113732845B

CN113732845B - Seamless steel pipe conveying and polishing device

Info

Publication number: CN113732845B
Application number: CN202111303340.8A
Authority: CN
Inventors: 徐辉; 周飞; 孙兆松
Original assignee: Xuzhou Global Precision Steel Tube Co ltd
Current assignee: Anhui Yuantong Precision Steel Pipe Co ltd; Xuzhou Global Precision Steel Tube Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-01-04
Anticipated expiration: 2041-11-05
Also published as: CN113732845A

Abstract

The invention relates to the field of steel pipe polishing equipment, and discloses a seamless steel pipe conveying and polishing device which comprises a machine table and a steel pipe to be polished, wherein two support plates are arranged on one side of the top of the machine table, a rotatable lower roller is arranged at the bottom between the two support plates, an upper cross shaft is further arranged between the two support plates, a plurality of rotatable roller mechanisms are sleeved on the upper cross shaft in a bearing manner, an upper magnetic ring is fixedly sleeved on the outer side of each roller mechanism, magnetic poles of the upper magnetic ring are transversely distributed, and the outer side of each roller mechanism is an N pole. The steel pipe that treats polishing is spacing through two next running rollers of upper magnetic ring cooperation of a plurality of equidistance arrangements, utilizes the outside of every upper magnetic ring all to the magnetic attraction in the lower magnetic ring outside for the in-process of marcing that the inner wall of steel pipe was polished to the polishing dish keeps the same throughout to the pressure of steel pipe inner wall, thereby makes the quality of polishing of steel pipe inner wall obtain effectively improving.

Description

Seamless steel pipe conveying and polishing device

Technical Field

The invention relates to the field of steel pipe polishing equipment, in particular to a seamless steel pipe conveying and polishing device.

Background

The seamless steel pipe is formed by punching a whole round steel, a welding seam is not arranged on the surface of the steel pipe, the seamless steel pipe is mainly used as a petroleum geology drilling pipe, a cracking pipe for petrochemical industry, a boiler pipe, a bearing pipe and a high-precision structural steel pipe for automobiles, tractors and aviation, and after the seamless steel pipe is formed, the inner wall or the outer side of the steel pipe needs to be polished according to use.

However, when the inner wall of steel pipe is polished by the existing steel pipe polishing equipment, because the steel pipe is not a perfect pipe cylinder, the steel pipe is in a certain degree of bending, and the inner wall is in an uneven state, and the polishing disc of the polishing machine advances to polish, the polishing disc is poor in polishing quality of the inner wall of the steel pipe, when the inner wall of the steel pipe is polished by the existing steel pipe polishing device, the abrasion consumption of the polishing disc is often compensated by the elasticity of the spring, the contact pressure between the polishing disc and the inner wall of the steel pipe is gradually reduced when polishing is caused, so that the polishing degree of the inner wall of the steel pipe is different, and the problem of the overall polishing quality is influenced.

Disclosure of Invention

The invention provides a seamless steel pipe conveying and grinding device which has the advantage of good grinding quality of the inner wall of a steel pipe and solves the technical problems in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme to realize: a seamless steel pipe conveying and polishing device comprises a machine table and a steel pipe to be polished, wherein one side of the top of the machine table is provided with two support plates, a rotatable lower roller is arranged at the bottom between the two support plates, an upper cross shaft is further arranged between the two support plates, a plurality of rotatable roller mechanisms are sleeved on a bearing on the upper cross shaft, and the outer side of each roller mechanism is fixedly sleeved with an upper magnetic ring, the magnetic poles of the upper magnetic ring are distributed transversely, the outer side of the machine table is provided with an N pole, the top of the machine table is also provided with a driving seat which can move horizontally, the driving seat is positioned at one side of the support plate, one side of the driving seat is provided with a rotatable rotating shaft, one end of the rotating shaft is provided with a polishing disc for polishing the inner wall of the steel pipe, and one end of the rotating shaft is also provided with lower magnetic rings positioned at two sides of the polishing disc, the magnetic poles of the lower magnetic rings are transversely distributed, and the outer sides of the lower magnetic rings are S poles.

Optionally, one side of drive frame is equipped with the drive unit, and but drive unit longitudinal movement on the drive frame, the drive unit drive has rotatable transmission pivot, the radial compensation shaft coupling of one end fixedly connected with of drive unit is kept away from in the transmission pivot, the one end and the rotation axis fixed connection of transmission pivot are kept away from to radial compensation shaft coupling.

Optionally, the roller mechanism includes an inner sleeve ring wheel sleeved with the upper cross shaft bearing, an air bag ring sleeve is fixedly sleeved on the outer side of the inner sleeve ring wheel, the air bag ring sleeve is in an inflated state, an outer sleeve ring wheel is fixedly sleeved on the outer side of the air bag ring sleeve, and the outer side of the outer sleeve ring wheel is fixedly sleeved with the inner wall of the upper magnetic ring.

Optionally, the drive unit and the transmission rotating shaft can move up and down on the drive base, the two support plates are provided with sliding grooves, the upper cross shaft is located in the sliding grooves, the outer sides of the upper cross shaft and the transmission rotating shaft are movably sleeved with the inner walls of the sliding grooves, the two support plates are fixedly connected with transverse plates, hydraulic cylinders are arranged on two sides of the top of each transverse plate, and the bottom ends of piston shafts of the hydraulic cylinders are movably sleeved with the upper cross shaft.

Optionally, one end of the rotating shaft, which is far away from the radial compensation coupler, is designed as a thread, the outer diameter of the thread section of the rotating shaft is smaller than the inner diameter of the cylindrical section of the rotating shaft, the lower magnetic rings and the polishing disc are movably sleeved with the thread section of the rotating shaft, a middle spacer ring movably sleeved on the rotating shaft is arranged between the polishing disc and the two lower magnetic rings, and a limit sleeve positioned on the outer side of the lower magnetic ring is sleeved on the thread of one end of the rotating shaft, which is far away from the radial compensation coupler.

The invention provides a seamless steel pipe conveying and grinding device which has the following beneficial effects:

1. this seamless steel pipe conveying grinding device, the steel pipe of treating polishing is carried on spacingly through two next running rollers of upper magnetic ring cooperation of a plurality of equidistance range, the outside that utilizes every upper magnetic ring all is to the magnetic attraction in the lower magnetic ring outside, make the mill carry out the in-process of marcing of polishing to the inner wall of steel pipe, pressure to steel pipe inner wall remains the same throughout, thereby make the quality of steel pipe inner wall polishing effectively improve, current steel pipe is at the in-process of polishing, because the steel pipe is not perfect tube column body, the steel pipe is because of there being the crooked condition and the state of inner wall unevenness of certain degree, and polish along with the mill of mill, the mill is to the relatively poor problem of the quality of polishing of steel pipe inner wall.

2. This seamless steel pipe conveying grinding device, the magnetic attraction that utilizes next magnetic ring and superior magnetic ring remains unchanged throughout, polish the steel pipe again, not receive the outside wearing and tearing consumption of polishing dish and influence the quality of polishing of steel pipe, when having avoided current steel pipe grinding device to polish the inner wall of steel pipe, the wearing and tearing consumption of polishing dish is compensated to the elasticity that often utilizes the spring, the contact pressure of polishing dish and steel pipe inner wall reduces gradually when leading to polishing, thereby the degree that leads to steel pipe inner wall to polish is different, thereby influence the problem of whole quality of polishing.

3. This seamless steel pipe conveying grinding device, through the inboard endotheca ring wheel of superior magnetic ring, gasbag ring cover, the structural design of overcoat ring wheel for a plurality of superior magnetic rings all keep attached at the state at steel pipe top, so that it is fine attached spacing to each position homoenergetic of steel pipe that has the crooked condition, thereby prevent that the steel pipe from when rotatory polishing, beat easily and influence the problem of the quality of polishing, the steel pipe when not influencing polishing simultaneously, the rotation of next running roller drive steel pipe, with the quality of polishing of guarantee steel pipe inner wall.

Drawings

FIG. 1 is a schematic view of a cutting structure for polishing the inner wall of a steel pipe according to the present invention;

FIG. 2 is a schematic side sectional view of the steel pipe polishing in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1A;

fig. 4 is a schematic view of the roller mechanism of fig. 3 according to the present invention.

In the figure: 1. a machine platform; 2. a support plate; 201. a lower roller; 202. a chute; 3. an upper horizontal axis; 4. a roller mechanism; 401. an inner sleeve ring wheel; 402. an air bag loop; 403. an outer ring wheel is sleeved; 5. an upper magnetic ring; 6. a drive base; 7. driving the machine set; 8. a transmission rotating shaft; 9. a rotating shaft; 10. a radial compensation coupling; 11. grinding disc; 12. a lower magnetic ring; 13. a limiting sleeve; 14. a middle spacer ring; 15. a transverse plate; 16. a hydraulic cylinder; 17. and (5) steel pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a seamless steel tube conveying and polishing device comprises a machine table 1 and a steel tube 17 to be polished, wherein two support plates 2 are arranged on one side of the top of the machine table 1, two rotatable lower rollers 201 are arranged at the bottom between the two support plates 2, as shown in fig. 2, the axes of the two lower rollers 201 are positioned on the same horizontal plane, an upper cross shaft 3 is further arranged between the two support plates 2, the upper cross shaft 3 is positioned above the space between the two lower rollers 201, a plurality of rotatable roller mechanisms 4 are sleeved on the upper cross shaft 3 in a bearing manner, the plurality of roller mechanisms 4 are arranged on the upper cross shaft 3 at equal intervals, an upper magnetic ring 5 is fixedly sleeved on the outer side of each roller mechanism 4, the magnetic poles of the upper magnetic ring 5 are distributed transversely, the outer side of each roller mechanism is an N pole, the inner side of each roller mechanism is an S pole, a driving base 6 capable of moving horizontally is arranged at the top of the machine table 1, and the driving base 6 is positioned on one side of the support plate 2, one side of the driving base 6 is provided with a driving unit 7, and the driving unit 7 can move longitudinally on the driving base 6, the driving unit 7 drives a rotatable transmission shaft 8, as shown in fig. 3, one end of the transmission shaft 8 far away from the driving unit 7 is fixedly connected with a radial compensation coupling 10, one end of the radial compensation coupling 10 far away from the transmission shaft 8 is fixedly connected with a rotating shaft 9, one end of the rotating shaft 9 far away from the radial compensation coupling 10 is fixedly sleeved with a polishing disc 11, one end of the rotating shaft 9 is also provided with lower magnetic rings 12 positioned at two sides of the polishing disc 11, magnetic poles of the lower magnetic rings 12 are distributed transversely, the outer sides of the lower magnetic rings 12 are S poles, and the inner sides thereof are N poles.

When the inner wall of the steel pipe 17 is polished, the steel pipe 17 is positioned between the two lower rollers 201 and the upper magnetic rings 5, the two lower rollers 201 are driven by the motor to drive the steel pipe 17 to rotate, the steel pipe 17 is limited by the two lower rollers 201 and the upper magnetic rings 5, the polishing quality is prevented from being influenced by dislocation of the steel pipe 17 during polishing, the magnetic attraction force of the outer side of each upper magnetic ring 5 to the outer side of the lower magnetic ring 12 is utilized, so that the pressure on the inner wall of the steel pipe 17 is always kept the same during the process of polishing the inner wall of the steel pipe by the polishing disc 11, the quality of polishing the inner wall of the steel pipe 17 is effectively improved, and the problem that the existing steel pipe 17 is polished during the polishing process because the steel pipe 17 is not a perfect pipe cylinder, the steel pipe 17 is easy to be polished in a certain degree of bending condition and in a state of uneven inner wall due to the existence of the steel pipe 17, the relatively poor problem of the quality of polishing dish 11 to steel pipe 17 inner wall, and, utilize the magnetic attraction of lower magnetic ring 12 and upper magnetic ring 5 to remain unchanged throughout, polishing steel pipe 17, do not receive the outside wearing and tearing consumption of polishing dish 11 and influence the quality of polishing of steel pipe 17, when having avoided current steel pipe grinding device to polish to the inner wall of steel pipe 17, the wearing and tearing consumption of polishing dish 11 is compensated to the elasticity that often utilizes the spring, the contact pressure of polishing dish 11 and steel pipe 17 inner wall reduces gradually when leading to polishing, thereby the degree that leads to steel pipe 17 inner wall to polish is different, thereby influence the problem of whole quality of polishing.

Referring to fig. 4, the roller mechanism 4 includes an inner ring wheel 401 bearing-sleeved with the upper horizontal shaft 3, an outer side of the inner ring wheel 401 is fixedly sleeved with an air bag ring sleeve 402, the air bag ring sleeve 402 is in an inflated state, an outer ring wheel 403 is fixedly sleeved on an outer side of the air bag ring sleeve 402, an outer side of the outer ring wheel 403 is fixedly sleeved with an inner wall of the upper magnetic ring 5, a plurality of roller mechanisms 4 are equidistantly arranged on the upper horizontal shaft 3, and the upper magnetic ring 5, the outer ring wheel 403 and the inner ring wheel 401 are connected to form the air bag ring sleeve 402, so that the upper magnetic ring 5 is kept attached to the top of the steel pipe 17, thereby well attaching and limiting each part of the steel pipe 17 with bending, thereby preventing the steel pipe 17 from easily jumping and affecting the lower polishing quality during the rotational polishing, and the roller 201 drives the steel pipe 17 to rotate, so as to ensure the polishing quality of the inner wall of the steel pipe 17.

The driving unit 7, the transmission pivot 8 can reciprocate on the driving chassis 6, and the spout 202 has all been seted up on two extension boards 2, the last cross axle 3 is located the spout 202, and the last cross axle 3, the outside of transmission pivot 8 and the inner wall swing joint of spout 202, the top fixedly connected with diaphragm 15 of two extension boards 2, the both sides at diaphragm 15 top all are equipped with pneumatic cylinder 16, the bottom and the last cross axle 3 movable sleeve joint of pneumatic cylinder 16 piston shaft, control the vertical removal of the last cross axle 3 by pneumatic cylinder 16, adjust the interval of last magnetic ring 5 and two next running rollers 201, thereby be convenient for polish through the inner wall to the steel pipe 17 of different chi footpaths.

The one end that radial compensation shaft coupling 10 was kept away from to rotation axis 9 is the screw thread design, and the screw thread section external diameter of rotation axis 9 is less than its cylinder section internal diameter, lower magnetic ring 12 all cup joints with the screw thread section activity of rotation axis 9 with polishing dish 11, and it is equipped with the well spacer ring 14 of activity suit on rotation axis 9 to polish between dish 11 and two lower magnetic rings 12, the one end screw thread that radial compensation shaft coupling 10 was kept away from to rotation axis 9 has cup jointed the stop collar 13 that is located the lower magnetic ring 12 outside, cup jointed fixedly through the screw thread of stop collar 13 with rotation axis 9, guarantee the stability when polishing dish 11 polishes steel pipe 17 inner wall, and, through taking off stop collar 13, conveniently take out polishing dish 11 and change.

When the steel tube polishing machine is used, a steel tube 17 is placed between two lower rollers 201, a piston shaft is driven by a hydraulic cylinder 16 to drive an upper transverse shaft 3, a roller mechanism 4 and an upper magnetic ring 5 to integrally move downwards, so that the upper magnetic ring 5 is attached to the upper transverse shaft 3, meanwhile, a motor drives the lower rollers 201 to drive the steel tube 17 to rotate slowly, a driving unit 7 drives a transmission rotating shaft 8, a rotating shaft 9 and a polishing disc 11 to rotate, the inner wall of the steel tube 17 is polished by the polishing disc 11, and meanwhile, a driving machine base 6 moves towards a support plate 2 at a constant speed until the inner wall of the steel tube 17 is completely polished.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a seamless steel pipe conveying grinding device, includes board (1) and treats steel pipe (17) of polishing, its characterized in that: the machine table comprises a machine table (1), wherein two support plates (2) are arranged on one side of the top of the machine table (1), a rotatable lower roller (201) is arranged at the bottom between the two support plates (2), an upper transverse shaft (3) is further arranged between the two support plates (2), a plurality of rotatable roller mechanisms (4) are sleeved on the upper transverse shaft (3) in a bearing mode, an upper magnetic ring (5) is fixedly sleeved on the outer side of each roller mechanism (4), magnetic poles of the upper magnetic ring (5) are transversely distributed, the outer side of each upper magnetic ring is an N pole, a driving base (6) capable of moving horizontally is further arranged on the top of the machine table (1), the driving base (6) is located on one side of each support plate (2), a rotatable rotating shaft (9) is arranged on one side of each driving base (6), a polishing disc (11) for polishing the inner wall of a steel pipe (17) is arranged at one end of each rotating shaft (9), a lower magnetic ring (12) located on two sides of each polishing disc (11) is further arranged at one end of each rotating shaft (9), the magnetic poles of the lower magnetic ring (12) are transversely distributed, the outer side of the lower magnetic ring is an S pole, one side of the driving base (6) is provided with a driving unit (7), the driving unit (7) can longitudinally move on the driving base (6), the driving unit (7) drives a rotatable transmission rotating shaft (8), one end, far away from the driving unit (7), of the transmission rotating shaft (8) is fixedly connected with a radial compensation coupler (10), one end, far away from the transmission rotating shaft (8), of the radial compensation coupler (10) is fixedly connected with a rotating shaft (9), the roller mechanism (4) comprises an inner annular wheel (401) in bearing sleeve connection with an upper transverse shaft (3), an air bag annular sleeve (402) is fixedly sleeved on the outer side of the inner annular wheel (401), the air bag annular sleeve (402) is in an inflation expansion state, and an outer annular wheel (403) is fixedly sleeved on the outer side of the air bag annular sleeve (402), the outer side of the outer sleeve ring wheel (403) is fixedly sleeved with the inner wall of the upper magnetic ring (5), the driving unit (7) and the transmission rotating shaft (8) can move up and down on the driving base (6), the sliding grooves (202) are formed in the two support plates (2), the upper transverse shaft (3) is located in the sliding grooves (202), the outer sides of the upper transverse shaft (3) and the transmission rotating shaft (8) are movably sleeved with the inner wall of the sliding grooves (202), the top of each support plate (2) is fixedly connected with a transverse plate (15), hydraulic cylinders (16) are arranged on two sides of the top of each transverse plate (15), and the bottom ends of piston shafts of the hydraulic cylinders (16) are movably sleeved with the upper transverse shaft (3).

2. The seamless steel tube conveying grinding device according to claim 1, characterized in that: the end, far away from radial compensation shaft coupling (10), of rotation axis (9) is the screw thread design, and the screw thread section external diameter of rotation axis (9) is less than its cylinder section internal diameter, lower magnetic ring (12) all cup joint with the screw thread section activity of rotation axis (9) with polishing dish (11), and polish and be equipped with between dish (11) and two lower magnetic ring (12) activity suit at the well spacer ring (14) on rotation axis (9), the stop collar (13) that are located the lower magnetic ring (12) outside is cup jointed to the one end screw thread that radial compensation shaft coupling (10) was kept away from in rotation axis (9).