Seamless steel tube inner diameter polishing device

Abstract

The invention discloses a seamless steel pipe inner diameter grinding device, and particularly relates to the technical field of seamless steel pipes. The seamless steel pipe inner diameter grinding device comprises a rack, an operation panel is arranged on the outer wall of the rack, a first motor is installed on the outer wall of the rack, a driver is arranged on the outer wall of a fixing rod, and a telescopic rod is fixedly connected to one side of a fixing disc; the other end of the telescopic rod is fixedly connected with a connecting rod, and one end of the air cylinder is fixedly connected with a push rod. According to the seamless steel pipe inner diameter grinding device, through the arrangement of the fixing rod, the telescopic rod and the air cylinder, the problem that an existing seamless steel pipe inner diameter grinding device cannot achieve synchronous telescopic adjustment when a seamless steel pipe is ground is solved, and therefore workers can conveniently and rapidly grind the inner diameter of the seamless steel pipe; and meanwhile, deviation between rotary polishing and seamless steel pipe movement of the polishing device is prevented, the polishing uniformity of the inner diameter of the seamless steel pipe is guaranteed, and the use quality of the seamless steel pipe after inner diameter polishing is improved.

Description

Technical Field

[0001] The invention relates to the technical field of seamless steel pipes, in particular to a seamless steel pipe inner diameter grinding device. Background Art

[0002] Seamless steel pipe is made by perforating a whole round steel. There is no weld on the surface of the steel pipe, which is called seamless steel pipe. According to the production method, seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, extruded seamless steel pipe, jacking pipe, etc. According to the cross-sectional shape, seamless steel pipe is divided into round and special-shaped. Special-shaped pipes have square, oval, triangle, hexagon, melon seed, star, winged pipe and many other complex shapes. Seamless steel pipe is mainly used as petroleum geological drilling pipe, cracking pipe for petrochemical industry, boiler pipe, bearing pipe and high-precision structural steel pipe for automobile, tractor and aviation.

[0003] The existing inner diameter grinding device of seamless steel pipe usually adopts the method of rotary grinding in combination with the movement of seamless steel pipe to complete the inner diameter grinding of seamless steel pipe. Since the existing inner diameter grinding device of seamless steel pipe cannot satisfy the synchronous telescopic adjustment during the grinding of seamless steel pipe, the staff's grinding device deviates during the rotary grinding and the movement of seamless steel pipe, resulting in the inner diameter of seamless steel pipe cannot be uniformly ground, affecting the quality of the inner diameter of seamless steel pipe after grinding. At the same time, the inner diameter grinding device needs to replace the grinding disc according to the different inner diameters of seamless steel pipes, thereby reducing the efficiency of the inner diameter grinding device for grinding seamless steel pipes. Therefore, the existing inner diameter grinding device of seamless steel pipe needs to be improved to a certain extent. Summary of the invention

[0004] The purpose of the present invention is to provide a seamless steel pipe inner diameter grinding device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a seamless steel pipe inner diameter grinding device, comprising a frame, an operation panel is arranged on the outer wall of the frame, a protective tube is fixedly connected to the top of the frame, a No. 1 motor is installed on the outer wall of the frame, and the output shaft of the No. 1 motor is connected to a fixed rod through a coupling, a transmission is arranged on the outer wall of the fixed rod, and a fixed disk is arranged on the inner wall of the transmission;

[0006] One side of the fixed plate is fixedly connected with a telescopic rod, and one side of the fixed plate is fixedly connected with an adjustment frame, the other end of the telescopic rod is fixedly connected with a connecting rod, the outer wall bearing of the fixed plate is connected with a bearing ring, and a cylinder is installed on one side of the bearing ring, one end of the cylinder is fixedly connected with a push rod, and one end of the connecting rod is fixedly connected with a size adjustment structure component.

[0007] Preferably, a fixed rod and a fixed plate are provided on the inner wall of the transmission, and the fixed plate forms a rotating structure with the transmission and the fixed rod, the outer wall bearing of the fixed plate is connected with a protective tube, the two ends of the telescopic rod are fixedly connected with a fixed plate and a connecting rod, and the connecting rod forms a rotating structure with the telescopic rod and the fixed plate.

[0008] Preferably, the push rod forms a telescopic structure through a cylinder, and the outer wall of the push rod is slidably connected to an adjustment frame, the size adjustment structure assembly forms an integrated structure with the push rod through a connecting rod, and the telescopic rod forms an adjustment structure through the connecting rod.

[0009] Preferably, the inner wall of the protection tube is slidably connected to a connecting rod, and the inner wall of the protection tube and the outer wall of the connecting rod match each other in shape and size.

[0010] Preferably, the size adjustment structure assembly includes a protective shell, one side of the protective shell is fixedly connected to a connecting rod, and a No. 2 motor is provided on the outer wall of the protective shell, the output shaft of the No. 2 motor is connected to a transmission rod through a coupling, and the outer wall of the transmission rod is fixedly connected to a No. 1 gear.

[0011] Preferably, the outer wall of the No. 1 gear is meshedly connected with a gear ring, and the outer wall of the gear ring is slidably connected with a protective shell, the inner wall of the gear ring is meshedly connected with a No. 2 gear, and there are four No. 2 gears, and the four No. 2 gears are equidistantly arranged on the inner wall of the gear ring.

[0012] Preferably, the No. 2 gear forms a rotating structure with the No. 1 gear through a gear ring, and the inner wall of the No. 2 gear is fixedly connected to a bearing rod, the outer wall of the No. 2 gear is meshedly connected to a gear rod, and the gear rod forms a telescopic structure through the No. 2 gear, there are two bearing rods, and both bearing rods are meshedly connected to the No. 2 gear, and the other ends of the two bearing rods are respectively fixedly connected to a No. 1 grinding ring and a No. 2 grinding ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the inner diameter grinding device for seamless steel pipes;

[0014] 1. The fixed rod, telescopic rod and cylinder are set up, and the telescopic rod, connecting rod and size adjustment structure assembly are driven by belt transmission to rotate. At the same time, the push rod drives the connecting rod and the size adjustment structure assembly through the cylinder to perform telescopic adjustment to complete the inner diameter grinding of the seamless steel pipe, which solves the problem that the existing seamless steel pipe inner diameter grinding device cannot meet the synchronous telescopic adjustment during the seamless steel pipe grinding, thereby facilitating the staff to quickly grind the inner diameter of the seamless steel pipe, and preventing the grinding device from deviating from the rotation grinding and the movement of the seamless steel pipe, thereby ensuring the uniformity of the inner diameter grinding of the seamless steel pipe and improving the quality of the seamless steel pipe after the inner diameter grinding;

[0015] 2. Through the size adjustment structure assembly, a gear ring is used to drive multiple No. 2 gears to rotate. At this time, the No. 2 gear drives the No. 1 grinding ring and the No. 2 grinding ring through the gear rod to perform telescopic adjustment to complete the grinding of seamless steel pipes with different inner diameters, which solves the problem that the existing seamless steel pipe inner diameter grinding device needs to replace the grinding disc according to the different inner diameters of the seamless steel pipe, thereby facilitating the staff to grind seamless steel pipes with different inner diameters, thereby improving the efficiency of the inner diameter grinding device for grinding seamless steel pipes and increasing the practicality of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the protection tube of the present invention;

[0018] Figure 3 It is a schematic diagram of the connection structure of the connecting rod and the size adjustment structure assembly of the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the size adjustment structural component of the present invention.

[0020] In the figure: 1. frame; 2. operation panel; 3. protection tube; 4. motor No. 1; 5. fixing rod; 6. transmission; 7. fixing plate; 8. telescopic rod; 9. adjustment frame; 10. connecting rod; 11. bearing ring; 12. cylinder; 13. push rod; 14. size adjustment structure assembly; 1401. protection shell; 1402. motor No. 2; 1403. transmission rod; 1404. gear No. 1; 1405. gear ring; 1406. gear No. 2; 1407. bearing rod; 1408. gear rod; 1409. grinding ring No. 1; 1410. grinding ring No. 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-3 The present invention provides a technical solution: a seamless steel pipe inner diameter grinding device, comprising a frame 1, an operating panel 2 is arranged on the outer wall of the frame 1, and a protective tube 3 is fixedly connected to the top of the frame 1, a No. 1 motor 4 is installed on the outer wall of the frame 1, and the output shaft of the No. 1 motor 4 is connected to a fixed rod 5 through a coupling, a transmission device 6 is arranged on the outer wall of the fixed rod 5, and a fixed plate 7 is arranged on the inner wall of the transmission device 6.

[0023] The inner wall of the transmission device 6 is provided with a fixed rod 5 and a fixed plate 7, and the fixed plate 7 forms a rotating structure with the fixed rod 5 through the transmission device 6, the outer wall bearing of the fixed plate 7 is connected with a protective tube 3, and the two ends of the telescopic rod 8 are fixedly connected with the fixed plate 7 and the connecting rod 10, and the connecting rod 10 forms a rotating structure with the fixed plate 7 through the telescopic rod 8;

[0024] The push rod 13 forms a telescopic structure through the cylinder 12, and the outer wall of the push rod 13 is slidably connected with the adjustment frame 9, the size adjustment structure component 14 forms an integrated structure with the push rod 13 through the connecting rod 10, and the telescopic rod 8 forms an adjustment structure through the connecting rod 10;

[0025] The inner wall of the protection tube 3 is slidably connected with the connecting rod 10 , and the inner wall of the protection tube 3 and the outer wall of the connecting rod 10 match each other in shape and size.

[0026] The specific implementation method is:

[0027] See also Figure 1-4 The present invention provides a technical solution: a seamless steel pipe inner diameter grinding device, a telescopic rod 8 is fixedly connected to one side of a fixed disk 7, and an adjusting frame 9 is fixedly connected to one side of the fixed disk 7, a connecting rod 10 is fixedly connected to the other end of the telescopic rod 8, an outer wall bearing of the fixed disk 7 is connected to a bearing ring 11, and a cylinder 12 is installed on one side of the bearing ring 11, one end of the cylinder 12 is fixedly connected to a push rod 13, and one end of the connecting rod 10 is fixedly connected to a size adjustment structure component 14.

[0028] The size adjustment structural assembly 14 includes a protective shell 1401, one side of the protective shell 1401 is fixedly connected to the connecting rod 10, and the outer wall of the protective shell 1401 is provided with a second motor 1402, the output shaft of the second motor 1402 is connected to a transmission rod 1403 through a coupling, and the outer wall of the transmission rod 1403 is fixedly connected to a first gear 1404;

[0029] The outer wall of the first gear 1404 is meshedly connected with a gear ring 1405, and the outer wall of the gear ring 1405 is slidably connected with a protective shell 1401, and the inner wall of the gear ring 1405 is meshedly connected with a second gear 1406, and there are four second gears 1406, which are equidistantly arranged on the inner wall of the gear ring 1405;

[0030] The second gear 1406 forms a rotating structure with the first gear 1404 through the gear ring 1405, and the inner wall of the second gear 1406 is fixedly connected with a bearing rod 1407, the outer wall of the second gear 1406 is meshedly connected with a gear rod 1408, and the gear rod 1408 forms a telescopic structure through the second gear 1406, there are two bearing rods 1407, and the two bearing rods 1407 are both meshedly connected with the second gear 1406, and the other ends of the two bearing rods 1407 are respectively fixedly connected with the first grinding ring 1409 and the second grinding ring 1410.

[0031] The specific implementation method is:

[0032] Working principle: When using the inner diameter grinding device for seamless steel pipes, first adjust the center of the seamless steel pipe to be on the same horizontal line with the center of the size adjustment structure component 14 through the seamless steel pipe bracket, and then start the No. 2 motor 1402 set on the outer wall of the protective shell 1401. At this time, the No. 2 motor 1402 drives the transmission rod 1403 to rotate, so that the transmission rod 1403 drives the No. 1 gear 1404 fixed on the outer wall to rotate, so that the No. 1 gear 1404 drives the gear ring 1405 meshing with the outer wall to slide along the inner wall of the protective shell 1401, and then the gear ring 1405 drives the four No. 2 gears 1406 meshing with the inner wall to rotate synchronously;

[0033] Thus, the No. 2 gear 1406 drives the two gear rods 1408 meshingly connected with the outer wall to perform telescopic adjustment, and then the No. 1 grinding ring 1409 and the No. 2 grinding ring 1410 are driven by the two gear rods 1408 to contact the inner wall of the seamless steel pipe. At this time, the No. 1 motor 4 is started through the operation panel 2 set on the outer wall of the frame 1, so that the No. 1 motor 4 drives the fixed rod 5 to rotate. Since the inner wall of the transmission device 6 is provided with the fixed rod 5 and the fixed disk 7, the fixed disk 7 rotates along the inner wall of the protection tube 3 following the fixed rod 5 through the transmission device 6.

[0034] At the same time, the telescopic rod 8 drives the connecting rod 10 to rotate, and at this time, the connecting rod 10 drives the size adjustment structure component 14 to rotate, so that the size adjustment structure component 14 grinds the inner wall of the seamless steel pipe, and then starts the cylinder 12. At this time, the cylinder 12 drives the push rod 13 to slide along the inner wall of the adjustment frame 9, so that the push rod 13 drives the connecting rod 10 to perform telescopic adjustment, thereby driving the connecting rod 10 to slide along the inner wall of the protective tube 3, and then drives the size adjustment structure component 14 to slide along the inner wall of the seamless steel pipe through the connecting rod 10. At the same time, the connecting rod 10 performs telescopic adjustment on the telescopic rod 8, and completes the grinding of the inner diameter of seamless steel pipes of different lengths by the size adjustment structure component 14.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe inner diameter grinding device, comprising a frame (1), characterized in that: An operation panel (2) is arranged on the outer wall of the frame (1), and a protective tube (3) is fixedly connected to the top of the frame (1); a first motor (4) is installed on the outer wall of the frame (1), and the output shaft of the first motor (4) is connected to a fixing rod (5) via a coupling; a transmission (6) is arranged on the outer wall of the fixing rod (5), and a fixing plate (7) is arranged on the inner wall of the transmission (6); One side of the fixed plate (7) is fixedly connected to a telescopic rod (8), and one side of the fixed plate (7) is fixedly connected to an adjustment frame (9), the other end of the telescopic rod (8) is fixedly connected to a connecting rod (10), the outer wall bearing of the fixed plate (7) is connected to a bearing ring (11), and one side of the bearing ring (11) is equipped with a cylinder (12), one end of the cylinder (12) is fixedly connected to a push rod (13), and one end of the connecting rod (10) is fixedly connected to a size adjustment structure component (14).

2. A seamless steel pipe inner diameter grinding device according to claim 1, characterized in that: The inner wall of the transmission device (6) is provided with a fixed rod (5) and a fixed disk (7), and the fixed disk (7) forms a rotating structure with the transmission device (6) and the fixed rod (5); the outer wall bearing of the fixed disk (7) is connected to a protective tube (3); the two ends of the telescopic rod (8) are fixedly connected to the fixed disk (7) and a connecting rod (10), and the connecting rod (10) forms a rotating structure with the fixed disk (7) through the telescopic rod (8).

3. The inner diameter grinding device of a seamless steel pipe according to claim 1, characterized in that: The push rod (13) forms a telescopic structure through the cylinder (12), and the outer wall of the push rod (13) is slidably connected to an adjustment frame (9), the size adjustment structure component (14) forms an integrated structure with the push rod (13) through a connecting rod (10), and the telescopic rod (8) forms an adjustment structure through the connecting rod (10).

4. A seamless steel pipe inner diameter grinding device according to claim 1, characterized in that: The inner wall of the protection tube (3) is slidably connected to a connecting rod (10), and the inner wall of the protection tube (3) and the outer wall of the connecting rod (10) match each other in shape and size.

5. The inner diameter grinding device of a seamless steel pipe according to claim 1, characterized in that: The size adjustment structure assembly (14) comprises a protective shell (1401), one side of the protective shell (1401) is fixedly connected to a connecting rod (10), and a second motor (1402) is arranged on the outer wall of the protective shell (1401), the output shaft of the second motor (1402) is connected to a transmission rod (1403) via a coupling, and the outer wall of the transmission rod (1403) is fixedly connected to a first gear (1404).

6. A seamless steel pipe inner diameter grinding device according to claim 5, characterized in that: The outer wall of the first gear (1404) is meshedly connected with a gear ring (1405), and the outer wall of the gear ring (1405) is slidably connected with a protective shell (1401), and the inner wall of the gear ring (1405) is meshedly connected with a second gear (1406), and there are four second gears (1406), and the four second gears (1406) are equidistantly arranged on the inner wall of the gear ring (1405).

7. A seamless steel pipe inner diameter grinding device according to claim 6, characterized in that: The second gear (1406) forms a rotating structure with the first gear (1404) through the gear ring (1405), and the inner wall of the second gear (1406) is fixedly connected with a bearing rod (1407), the outer wall of the second gear (1406) is meshedly connected with a gear rod (1408), and the gear rod (1408) forms a telescopic structure through the second gear (1406), there are two bearing rods (1407), and the two bearing rods (1407) are both meshedly connected with the second gear (1406), and the other ends of the two bearing rods (1407) are respectively fixedly connected with the first grinding ring (1409) and the second grinding ring (1410).

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