Repair welding device for repairing surface of hollow shaft

Abstract

The utility model discloses a repair welding device for repairing the surface of a hollow shaft, which comprises a base, the top of the base is fixedly provided with a mounting rack I and a mounting rack II, the interiors of the mounting rack I and the mounting rack II are connected with a back-up roll I and a back-up roll II through bearings, and a hollow shaft body is arranged between the back-up roll I and the back-up roll II. A mounting shell is fixed to the outer wall of the top of the base, one end of a connecting shaft of one first supporting roller extends into the mounting shell and is fixedly provided with a first worm gear, one end of a connecting shaft of one second supporting roller extends into the mounting shell and is fixedly provided with a second worm gear, and a bearing in the mounting shell is connected with a worm. The worm drives the first worm gear and the second worm gear to rotate, so that the first supporting roller and the second supporting roller can turn the surface of the hollow shaft body, surface turning of the hollow shaft body during repair welding is more convenient, and after surface turning is finished, the hollow shaft body can be kept stable through the self-locking effect of the worm, the first worm gear and the second worm gear.

Description

Technical Field

[0001] This utility model relates to the field of hollow shaft technology, specifically to a welding repair device for surface repair of hollow shafts. Background Technology

[0002] A hollow shaft is a shaft whose diameter is machined or reduced inside to make it hollow, as opposed to a solid shaft. It is a common type of shaft in large mechanical equipment.

[0003] In order to reduce costs, hollow shafts often need to be repaired by welding during use to restore them to normal operating conditions. However, due to the large size of hollow shafts, rotating them is inconvenient during welding. Therefore, there is an urgent need to design a welding device for surface repair of hollow shafts to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a welding repair device for the surface repair of hollow shafts, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A welding device for repairing the surface of a hollow shaft includes a base. A mounting bracket 1 and a mounting bracket 2 are fixed to the top of the base. Support roller 1 and support roller 2 are connected internally to each mounting bracket 1 and mounting bracket 2 via bearings. A hollow shaft body is disposed between support roller 1 and support roller 2. A mounting shell is fixed to the outer wall of the top of the base. One end of the connecting shaft of one support roller 1 extends into the interior of the mounting shell and is fixed with a worm gear 1. One end of the connecting shaft of one support roller 2 extends into the interior of the mounting shell and is fixed with a worm gear 2. A worm is connected to a bearing inside the mounting shell, and the worm meshes with both worm gear 1 and worm gear 2. An electric welding machine is disposed on one side of the base.

[0007] Furthermore, a geared motor is fixed to one outer wall of the mounting housing, and the output shaft of the geared motor is connected to the worm gear via a key.

[0008] Furthermore, an observation window is provided on one side of the outer wall of the mounting housing, and an oil inlet is fixed on one side of the outer wall of the mounting housing.

[0009] Furthermore, a slide rail is fixed to one side of the base, and a slide block is slidably connected to the top of the slide rail, with the welding machine fixed to the top of the slide block.

[0010] Furthermore, a rotating shaft is fixed between two adjacent support rollers, and both support rollers one and two support rollers include roller columns, the outer wall of which is provided with a protective layer.

[0011] Furthermore, the bottom outer wall of the base is integrally formed with a mounting plate, and the top outer wall of the mounting plate is provided with mounting holes.

[0012] In the above technical solution, the present invention provides a surface repair welding device for hollow shafts, which has the following advantages: the worm gear drives worm wheel one and worm wheel two to rotate, so that support roller one and support roller two can rotate the hollow shaft body, making it easier to rotate the hollow shaft body during repair welding. At the end of the rotation, the self-locking effect of the worm gear and worm wheel one and worm wheel two can keep the hollow shaft body stable; the slide block can be moved on the slide rail, so that the welding machine can move easily along the axial direction of the hollow shaft body, thus facilitating the welding machine to repair welding multiple positions of the hollow shaft body. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a front view structural schematic diagram of an embodiment of a welding device for repairing the surface of a hollow shaft according to the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of support roller one and support roller two provided in an embodiment of a welding device for repairing the surface of a hollow shaft according to the present invention.

[0016] Figure 3 This is a schematic diagram of the internal structure of the mounting shell provided in an embodiment of a welding device for repairing the surface of a hollow shaft according to the present invention.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Base, 2. Mounting bracket I, 3. Rotary shaft, 4. Support roller I, 5. Hollow shaft body, 6. Slide rail, 7. Slide seat, 8. Welding machine, 9. Mounting shell, 10. Worm gear I, 11. Worm gear II, 12. Mounting bracket II, 13. Support roller II, 14. Roller column, 15. Protective layer, 16. Worm, 17. Gear motor, 18. Observation window, 19. Oil inlet, 20. Mounting plate, 21. Mounting hole. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-3As shown in the figure, the present invention provides a welding device for repairing the surface of a hollow shaft, comprising a base 1, a mounting bracket 12 and a mounting bracket 22 fixed on the top of the base 1, a support roller 13 and a support roller 23 connected inside the mounting bracket 12 and the mounting bracket 22 via bearings, a hollow shaft body 5 disposed between the support roller 14 and the support roller 23, a mounting shell 9 fixed on the top outer wall of the base 1, a worm gear 10 fixed inside the mounting shell 9 at one end of the connecting shaft of one of the support rollers 14, and a worm gear 21 fixed inside the mounting shell 9 at one end of the connecting shaft of one of the support rollers 23, and a worm 16 fixed inside the mounting shell 9 via bearings, the worm 16 meshing with both the worm gear 10 and the worm gear 21, and a welding machine 8 disposed on one side of the base 1.

[0021] Specifically, in this embodiment, a base 1 is included. A mounting bracket 1 2 and a mounting bracket 2 12 are fixed to the top of the base 1. There is a certain distance between the mounting brackets 1 2 and 2 12. Support rollers 1 4 and 2 13 are connected internally to each mounting bracket 1 2 via bearings. The support rollers 1 4 and 2 13 are symmetrically positioned and have the same specifications. A hollow shaft body 5 is disposed between the support rollers 1 4 and 2 13, supporting both ends of the hollow shaft body 5 that need to be repaired by the support rollers 1 4 and 2 13. A mounting shell 9 is fixed to the top outer wall of the base 1, one of which... One end of the connecting shaft of support roller 14 extends into the interior of the mounting shell 9 and is fixed with worm gear 10. One end of the connecting shaft of support roller 213 extends into the interior of the mounting shell 9 and is fixed with worm gear 21. The bearing inside the mounting shell 9 is connected to a worm 16, which meshes with both worm gear 10 and worm gear 21. When the worm 16 rotates, worm gear 10 and worm gear 21 can drive support roller 14 and support roller 213 to rotate respectively, thereby causing the hollow shaft body 5 to rotate. A welding machine 8 is provided on one side of the base 1. The welding machine 8 is existing technology and is used to perform repair welding on the hollow shaft body 5.

[0022] This utility model provides a surface repair welding device for hollow shafts. The worm gear 16 drives the worm wheel 10 and worm wheel 11 to rotate, so that the support roller 4 and support roller 13 can rotate the hollow shaft body 5. This makes it easier to rotate the hollow shaft body 5 during repair welding. At the end of the rotation, the self-locking effect of the worm gear 16 and the worm wheel 10 and worm wheel 11 can keep the hollow shaft body 5 stable.

[0023] In another embodiment of this utility model, a reduction motor 17 is fixed to one outer wall of the mounting shell 9. The output shaft of the reduction motor 17 is connected to the worm gear 16 by a key. The reduction motor 17 drives the worm gear 16 to rotate, thereby saving manpower when the hollow shaft body 5 rotates. Since the hollow shaft body 5 cannot rotate too fast, the reduction transmission between the worm gear 16 and the first worm wheel 10 and the second worm wheel 11 prevents the hollow shaft body 5 from rotating too fast. An observation window 18 is provided on one outer wall of the mounting shell 9, and an oil inlet 19 is fixed on one outer wall of the mounting shell 9. Lubricating oil is added to the interior of the mounting shell 9 through the oil inlet 19, which reduces the wear of the worm gear 16 during transmission with the first worm wheel 10 and the second worm wheel 11. The observation window 18 also facilitates the observation of the lubricating oil.

[0024] In another embodiment of this utility model, a slide rail 6 is fixed on one side of the base 1, and a slide block 7 is slidably connected to the top of the slide rail 6. The welding machine 8 is fixed on the top of the slide block 7, and the slide block 7 is moved on the slide rail 6, so that the welding machine 8 can move conveniently along the axial direction of the hollow shaft body 5, thereby facilitating the welding machine 8 to perform repair welding on multiple positions of the hollow shaft body 5.

[0025] In another embodiment of this utility model, a rotating shaft 3 is fixed between two adjacent support rollers 4, and both ends of the rotating shaft 3 are fixed to the center of the support roller 4, so that the support roller 4 inside the mounting frame 2 can drive the support roller 4 inside the mounting frame 2 to rotate. At the same time, a rotating shaft 3 is also fixed between two support rollers 2 13. Both support roller 4 and support roller 2 13 include roller column 14. The outer wall of the roller column 14 is provided with a protective layer 15. The protective layer 15 is made of rubber material, so that the hollow shaft body 5 will not be scratched when rotating. The bottom outer wall of the base 1 is integrally formed with a mounting plate 20. The top outer wall of the mounting plate 20 is provided with a mounting hole 21. The mounting hole 21 is used to conveniently bolt the base 1 to prevent the base 1 from tipping over.

[0026] Working principle: During use, the slide block 7 moves on the slide rail 6, allowing the welding machine 8 to move conveniently along the axial direction of the hollow shaft body 5. This enables the welding machine 8 to perform welding on multiple positions of the hollow shaft body 5. When it is necessary to rotate the hollow shaft body 5, the reduction motor 17 drives the worm gear 16 to rotate, which in turn drives the worm wheel 10 and the worm wheel 11 to rotate, thereby causing the support roller 4 and the support roller 13 to rotate, thus allowing the hollow shaft body 5 to be rotated conveniently.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A welding repair device for the surface repair of a hollow shaft, characterized in that, The base (1) includes a base, on which a mounting bracket 1 (2) and a mounting bracket 2 (12) are fixedly fixed. The mounting bracket 1 (2) and the mounting bracket 2 (12) are connected to a support roller 1 (4) and a support roller 2 (13) through bearings. A hollow shaft body (5) is provided between the support roller 1 (4) and the support roller 2 (13). A mounting shell (9) is fixed to the outer wall of the top of the base (1). One end of the connecting shaft of one of the support rollers 1 (4) extends into the interior of the mounting shell (9) and a worm gear 1 (10) is fixed therein. One end of the connecting shaft of one of the support rollers 2 (13) extends into the interior of the mounting shell (9) and a worm gear 2 (11) is fixed therein. A worm (16) is connected to the bearing inside the mounting shell (9). The worm (16) meshes with both the worm gear 1 (10) and the worm gear 2 (11). A welding machine (8) is provided on one side of the base (1).

2. The welding device for repairing the surface of a hollow shaft according to claim 1, characterized in that, A geared motor (17) is fixed to one side of the outer wall of the mounting housing (9), and the output shaft of the geared motor (17) is connected to the worm gear (16) by a key.

3. The welding device for repairing the surface of a hollow shaft according to claim 1, characterized in that, An observation window (18) is provided on one side of the outer wall of the mounting housing (9), and an oil inlet (19) is fixed on one side of the outer wall of the mounting housing (9).

4. The welding device for repairing the surface of a hollow shaft according to claim 1, characterized in that, A slide rail (6) is fixed on one side of the base (1), and a slide block (7) is slidably connected to the top of the slide rail (6). The welding machine (8) is fixed on the top of the slide block (7).

5. The welding device for repairing the surface of a hollow shaft according to claim 1, characterized in that, A rotating shaft (3) is fixed between two adjacent support rollers (4). Both support rollers (4) and support rollers (13) include rollers (14), and the outer wall of the rollers (14) is provided with a protective layer (15).

6. The welding device for repairing the surface of a hollow shaft according to claim 1, characterized in that, The bottom outer wall of the base (1) is integrally formed with a mounting plate (20), and the top outer wall of the mounting plate (20) is provided with mounting holes (21).

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