Three-roller sizing device for steel pipe production

Abstract

The utility model discloses a three-roller sizing device for steel pipe production, which comprises a shell, three sizing rollers are arranged in the shell, mounting rods are arranged on two sides of each sizing roller, a sliding rod is arranged in the middle of each mounting rod, a sliding block is slidably connected to the outside of each sliding rod, a disc is arranged on the side wall of the shell, and the disc is arranged on the side wall of the shell. And three threaded rods are rotationally connected to the middle of the disc, threaded blocks are in threaded connection with the exteriors of the three threaded rods, connecting rods are arranged on the exteriors of the three threaded blocks, and the two ends of the multiple connecting rods are fixedly connected with the side walls of the sliding blocks correspondingly. By means of the structure, the first bevel gear is matched with the second bevel gear, the multiple threaded rods rotate at the same time, and the sizing roller is driven by the connecting rod to move in the rotating process.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe production, in particular to a three-roller sizing device for steel pipe production. Background Art

[0002] Steel pipe is a steel material with a hollow section whose length is much larger than its diameter or circumference. According to the cross-sectional shape, it can be divided into round, square, rectangular and special-shaped steel pipes. According to the production process, it can be divided into seamless steel pipes and welded steel pipes. Seamless steel pipes can be divided into hot-rolled and cold-rolled steel pipes. Welded steel pipes can be divided into straight seam welded steel pipes and spiral seam welded steel pipes.

[0003] During the production process of steel pipes, a three-roller sizing device is required to sizing the steel pipes. However, the existing three-roller sizing device is not convenient for adjusting the distance between the three rollers during use, which is inconvenient during use. Utility Model Content

[0004] The utility model aims to provide a three-roller sizing device for steel pipe production, thereby solving the technical problem that the three-roller sizing device in the prior art is inconvenient to adjust the distance between the three rollers when in use, which is inconvenient when in use.

[0005] To achieve the above-mentioned purpose, a three-roller sizing device for steel pipe production is provided, comprising: a shell, three sizing rollers are arranged inside the shell, mounting rods are arranged on both sides of the three sizing rollers, a plurality of sliding rods are arranged in the middle of the mounting rods, a plurality of sliding rods are slidably connected to the outside of the plurality of sliding rods with sliders, a disk is arranged on the side wall of the shell, three threaded rods are rotatably connected to the middle of the disk, a threaded block is threadedly connected to the outside of the three threaded blocks, a connecting rod is arranged on the outside of the three threaded blocks, both ends of the plurality of connecting rods are respectively fixedly connected to the side wall of the slider, a first bevel gear is matched with a second bevel gear to make the plurality of threaded rods rotate simultaneously, and the connecting rod is used to drive the sizing rollers to move during the rotation.

[0006] According to the three-roller sizing device for steel pipe production, the middle part of the disc is rotatably connected to a second bevel gear, the outside of each of the plurality of threaded rods is provided with a first bevel gear, the outside of the disc is provided with a knob, and the side wall of the knob is fixedly connected to the side wall of the second bevel gear.

[0007] According to the three-roller sizing device for steel pipe production, both sides of the three sizing rollers are rotatably connected to the side walls of the slider, and circular holes are opened in the middle of the shell and the disc.

[0008] According to the three-roller sizing device for steel pipe production, the first bevel gear and the second bevel gear are meshed with each other.

[0009] According to the three-roller sizing device for steel pipe production, the outer sides of the three sizing rollers are all arranged in an arc shape.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0011] The purpose of the utility model is to provide a three-roller sizing device for steel pipe production, the main innovations are:

[0012] The utility model utilizes the first bevel gear and the second bevel gear to cooperate so that a plurality of threaded rods rotate simultaneously, and utilizes the connecting rod to drive the sizing roller to move during the rotation, and adjusts the position of the sizing roller during the movement, which is convenient in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 This is a three-dimensional diagram of a three-roller sizing device for steel pipe production according to the utility model;

[0015] Figure 2 This is a shell cross-sectional view of a three-roller sizing device for steel pipe production according to the utility model;

[0016] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0017] Figure 4 The utility model is a cross-sectional view of a disc of a three-roller sizing device for steel pipe production.

[0018] Legend:

[0019] 1. Shell; 2. Sizing roller; 3. Mounting rod; 4. Round hole; 5. Disc; 6. Knob; 7. Slider; 8. Sliding rod; 9. Connecting rod; 10. First bevel gear; 11. Threaded rod; 12. Second bevel gear; 13. Threaded block. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-4The utility model embodiment is a three-roller sizing device for steel pipe production, which includes: a shell 1, three sizing rollers 2 are arranged inside the shell 1, mounting rods 3 are arranged on both sides of the three sizing rollers 2, multiple mounting rods 3 are arranged in the middle of each of the sliding rods 8, multiple sliding rods 8 are slidably connected to the outside of each of the sliding rods 8 with a sliding block 7, a side wall of the shell 1 is provided with a disk 5, the middle of the disk 5 is rotatably connected with three threaded rods 11, the three threaded rods 11 are threadedly connected to the outside of each of the three threaded blocks 13, and the three threaded blocks 13 are arranged on the outside of each of the connecting rods 9, the connecting rod 9 is connected to the sliding block 7, and the sizing rollers 2 are driven to move during the movement of the threaded block 13, and the two ends of the multiple connecting rods 9 are fixedly connected to the side walls of the sliding block 7 respectively.

[0022] A second bevel gear 12 is rotatably connected to the middle of the disc 5, and a first bevel gear 10 is provided on the outside of the multiple threaded rods 11 to facilitate driving the multiple threaded rods 11 to rotate simultaneously. A knob 6 is provided on the outside of the disc 5, and the side wall of the knob 6 is fixedly connected to the side wall of the second bevel gear 12. Both sides of the three sizing rollers 2 are rotatably connected to the side walls of the slider 7. A circular hole 4 is provided in the middle of the shell 1 and the disc 5 to facilitate the steel pipe to pass through the middle of the shell 1, so that the sizing roller 2 is used to sizing the steel pipe. The first bevel gear 10 is meshed with the second bevel gear 12, and the outer sides of the three sizing rollers 2 are all arranged in an arc shape.

[0023] Working principle: When in use, the knob 6 is used to drive the first bevel gear 10 and the second bevel gear 12 to rotate. During the rotation, multiple threaded rods 11 are rotated simultaneously. During the rotation, the connecting rod 9 is used to drive the slider 7 to move, thereby driving the sizing rollers 2 to move, so as to adjust the distance between the sizing rollers 2. Steel pipes of different sizes can be sized, which is more convenient when in use.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A three-roller sizing device for steel pipe production, characterized in that: include: A shell (1), wherein three sizing rollers (2) are arranged inside the shell (1), mounting rods (3) are arranged on both sides of the three sizing rollers (2), a plurality of sliding rods (8) are arranged in the middle of the mounting rods (3), and a plurality of sliding rods (8) are slidably connected to sliders (7) on the outside, a disk (5) is arranged on the side wall of the shell (1), and three threaded rods (11) are rotatably connected to the middle of the disk (5), and the three threaded rods (11) are threadedly connected to threaded blocks (13) on the outside, and connecting rods (9) are arranged on the outside of the three threaded blocks (13), and the two ends of the plurality of connecting rods (9) are respectively fixedly connected to the side walls of the sliders (7).

2. A three-roller sizing device for steel pipe production according to claim 1, characterized in that: The middle of the disk (5) is rotatably connected to a second bevel gear (12), the outsides of the plurality of threaded rods (11) are each provided with a first bevel gear (10), the outside of the disk (5) is provided with a knob (6), and the side wall of the knob (6) is fixedly connected to the side wall of the second bevel gear (12).

3. A three-roller sizing device for steel pipe production according to claim 1, characterized in that: Both sides of the three sizing rollers (2) are rotatably connected to the side walls of the slider (7), and circular holes (4) are provided in the middle of the housing (1) and the disc (5).

4. A three-roller sizing device for steel pipe production according to claim 2, characterized in that: The first bevel gear (10) and the second bevel gear (12) are meshed with each other.

5. A three-roller sizing device for steel pipe production according to claim 1, characterized in that: The outer sides of the three sizing rollers (2) are all arranged in an arc shape.

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