Shaft diameter thickening and repairing equipment for shaft workpieces

Abstract

The utility model relates to the technical field of shaft workpiece repairing, in particular to shaft diameter thickening repairing equipment for shaft workpieces, which comprises two moving components at the bottom, repairing bases are arranged on the moving components, adjusting bearing components are arranged at the tops of the repairing bases, rollers are supported on the adjusting bearing components, and the adjusting bearing components are arranged on the moving components. The adjusting bearing assembly can adjust the bearing height of the rolling wheel, a connecting driving mechanism is arranged at one end of the rolling wheel and connected with the end of the rolling wheel, a sliding rail is arranged on the moving assembly along the side line, and an electric welding machine is arranged on the sliding rail. The shaft diameter thickening and repairing equipment for the shaft workpieces can meet the requirements of different workpiece sizes, is high in flexibility, greatly improves the working efficiency of the equipment, avoids the danger possibly caused by manual operation through the matched work of the sliding rail and an electric welding machine, improves the repairing safety, and greatly reduces the labor cost.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft workpiece repair, in particular to a shaft diameter thickening repair device for shaft workpieces. Background Technique

[0002] Shaft workpieces are crucial components in mechanical equipment, and their performance and stability have an important impact on the operation of the entire equipment. However, due to long-term use, wear, or corrosion, etc., the shaft diameter of shaft workpieces may become thinner, resulting in problems such as reduced load-bearing capacity and insufficient stability; in the various rotors of the steam turbine system and boiler system in power plants (especially the rotors inside high-temperature and high-pressure cylinders), after a certain service cycle, the surface of the shaft diameter will be deformed due to wear, erosion, and the high-temperature and high-pressure environment, the roundness of the shaft diameter will decrease, and the rotor will operate poorly. Therefore, the thickening repair of the shaft diameter of shaft workpieces has become an important research direction in the industrial field.

[0003] There are various processing methods for thickening the shaft diameter of shaft workpieces, and common ones include manual grinding and fusion welding, etc. Since the shaft diameter of the rotor is generally about φ300mm - φ500mm, for such a large-diameter surface, using traditional manual grinding is both time-consuming and laborious, requires a large number of grinding workers, and it is difficult to guarantee the work quality; currently, most of the thickening repairs of the shaft diameter of shaft workpieces use repair welding, manual electric grinding, or angle grinding. Content of the Utility Model

[0004] The invention purpose of the utility model is to overcome the defects described in the background technique, so as to realize a shaft diameter thickening repair device for shaft workpieces. This device can meet different workpiece size requirements, has high flexibility, greatly improves the working efficiency of the device, the cooperation of the slide rail and the electric welding machine avoids the possible dangers brought by manual operation, improves the repair safety, and greatly reduces the labor cost.

[0005] To achieve the above invention purpose, the technical solution of the utility model is: a shaft diameter thickening repair device for shaft workpieces, including two moving components at the bottom. Repair bases are arranged on the moving components, adjusting support components are arranged on the tops of the repair bases, rollers are supported on the adjusting support components, the adjusting support components can adjust the support height of the rollers, a connecting drive mechanism is arranged at one end of the roller, the connecting drive mechanism is connected to this end of the roller, and the connecting drive mechanism ensures to change the position of the roller axis to realize the constant angular velocity transmission between the roller and the output shaft. Two slide rails are arranged in parallel along the side line on the same side of the two moving components, and an electric welding machine is arranged on the slide rail.

[0006] In the above-mentioned equipment for repairing the thickened shaft diameter of shaft workpieces, the adjusting support assembly includes a connecting block. The two connecting blocks are symmetrically arranged at both ends of the top of the repair base. A waist-shaped hole is provided on the connecting block. A support bracket is slidably arranged between the two connecting blocks. The support bracket and the connecting block are detachably fixed by a threaded column passing through the waist-shaped hole. The rollers are symmetrically arranged along the center on the support bracket. Buckles are arranged at both ends of the rollers. The buckles are detachably and fixedly connected to the top of the support bracket. An adjusting threaded column is rotatably arranged on the top of the repair base at the center of the support bracket. An adjusting block is fixedly sleeved on the adjusting threaded column.

[0007] In the above-mentioned equipment for repairing the thickened shaft diameter of shaft workpieces, the adjusting support assembly further includes a carbon brush. A rotatable and adjustable carbon brush is arranged on the support bracket.

[0008] In the above-mentioned equipment for repairing the thickened shaft diameter of shaft workpieces, the connection driving mechanism includes a connection seat. The connection seat is arranged at one end of the moving component. A driving motor is arranged inside the upper end of the connection seat. A universal joint is coaxially arranged on the output shaft of the driving motor. The universal joint is detachably and fixedly connected to one end of the roller.

[0009] In the above-mentioned equipment for repairing the thickened shaft diameter of shaft workpieces, the moving component includes a bottom plate. T-shaped sliding grooves are provided at both ends of the bottom plate. Bolts are slidably arranged in the T-shaped sliding grooves. The bolts penetrate through both ends of the bottom of the repair base and are detachably and fixedly arranged by nuts. A conveying groove is provided in the middle of the bottom plate. A conveying chain is arranged in the conveying groove. The conveying chain is fixedly arranged on the bottom of the repair base. An adjusting head is arranged at one end of the bottom plate. The inside of the adjusting head is connected to the conveying chain. Rotating the adjusting head can adjust the position of the conveying chain.

[0010] Compared with the prior art, the equipment for repairing the thickened shaft diameter of shaft workpieces of the present utility model has at least the following beneficial effects:

[0011] 1. For the equipment for repairing the thickened shaft diameter of shaft workpieces of the present utility model, the distance between the two repair components can be adjusted through the bottom moving component to adapt to shaft workpieces of different lengths. The adjusting support assembly on the repair base can change the height of the rollers, and then change the height of the shaft workpieces on the rollers. The connection driving mechanism is used to ensure the change of the position of the roller axis, so as to realize the constant angular velocity transmission between the roller and the output shaft. This equipment can adapt to different workpiece size requirements, has high flexibility, greatly improves the working efficiency of the equipment. The cooperation of the slide rail and the electric welding machine avoids the possible dangers caused by manual operation, improves the repair safety, and greatly reduces the labor cost.

[0012] 2. The shaft diameter thickening repair equipment for shaft workpieces of the present utility model. The carbon brush provided on the supporting bracket can lead the current out of the roller instead of passing through the roller, reducing the damage rate of the bearing inside the roller, prolonging the service life of the roller, reducing the maintenance and replacement frequency, and helping to improve the reliability and stability of the equipment. Brief Description of the Drawings

[0013] Figure 1 is the overall three-dimensional structural schematic diagram of the shaft diameter thickening repair equipment for shaft workpieces of the present utility model;

[0014] Figure 2 is one of the partial component three-dimensional structural schematic diagrams of the shaft diameter thickening repair equipment for shaft workpieces of the present utility model;

[0015] Figure 3 is the second of the partial component three-dimensional structural schematic diagrams of the shaft diameter thickening repair equipment for shaft workpieces of the present utility model;

[0016] Figure 4 is the front view schematic diagram of the adjustment and support component of the shaft diameter thickening repair equipment for shaft workpieces of the present utility model.

[0017] In the figure:

[0018] 1. Moving component; 11. Base plate; 12. Conveyor chain; 13. Adjusting head; 14. T-shaped chute; 15. Conveyor trough;

[0019] 2. Repair base;

[0020] 3. Adjustment and support component; 31. Connecting block; 32. Threaded column; 33. Supporting bracket; 34. Snap; 35. Adjusting block; 36. Adjusting threaded column; 37. Carbon brush;

[0021] 4. Roller;

[0022] 5. Connecting drive mechanism; 51. Connecting seat; 52. Universal joint;

[0023] 6. Electric welding machine. Detailed Implementation Modes

[0024] The shaft diameter thickening repair equipment for shaft workpieces of the present utility model will be described in more detail below in conjunction with the drawings and through specific implementation modes.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0026] The shaft diameter thickening repair device for shaft-like workpieces in this embodiment is shown in Figures 1-4 , this device can meet different workpiece size requirements, has high flexibility, greatly improves the working efficiency of the device. The cooperation between the slide rail and the electric welding machine avoids the potential danger caused by manual operation, improves the repair safety, and greatly reduces the labor cost. It includes a moving component 1 at the bottom. A repair base 2 is movably arranged on the moving component 1. The moving component 1 includes a bottom plate 11. T-shaped sliding grooves 14 are opened at both ends of the bottom plate 11. Bolts are slidably arranged in the T-shaped sliding grooves 14. The bolts penetrate through both ends of the bottom of the repair base 2 and are detachably fixed by nuts. A conveying groove 15 is opened in the middle of the bottom plate 11. A conveying chain 12 is arranged in the conveying groove 15. The conveying chain 12 is fixedly arranged with the bottom of the repair base 2. An adjusting head 13 is arranged at one end of the bottom plate 11. The inside of the adjusting head 13 is connected to the conveying chain 12. Rotating the adjusting head 13 can adjust the position of the conveying chain 12, and further adjust the position of the repair base 2 thereon.

[0027] In order to adjust the vertical position of the shaft-like workpiece, in this embodiment, see Figures 2-4, an adjustment and support component 3 is provided on the top of the repair base 2. The adjustment and support component 3 includes a connection block 31. The two connection blocks 31 are symmetrically and fixedly arranged at both ends of the top of the repair base 2. A waist-shaped hole is formed in the connection block 31. A support bracket 33 is slidably arranged between the two connection blocks 31. The support bracket 33 and the connection block 31 are detachably fixed by a threaded column 32 passing through the waist-shaped hole. A roller 4 is supported on the support bracket 33. The roller 4 is symmetrically arranged along the center on the support bracket 33. Clips 34 are arranged at both ends of the roller 4. The clips 34 are detachably and fixedly connected to the top of the support bracket 33. Since the roller 4 is a vulnerable part, the detachable arrangement facilitates replacement and the maintenance and repair work on it. A regulating threaded column 36 is rotatably arranged on the top of the repair base 2 at the center of the support bracket 33. An adjusting block 35 is fixedly sleeved on the regulating threaded column 36. When it is necessary to adjust the vertical height of the shaft workpiece, first loosen the threaded columns 32 at both ends of the support bracket 33, insert an adjusting column into the adjusting block 35 and rotate it, so that the support bracket 33 makes a vertical displacement. After it reaches the required height, tighten the nut on the threaded column 32 to fix the support bracket 33.

[0028] The adjustment and support component 3 further includes a carbon brush 37. A rotatable and adjustable carbon brush 37 is arranged on the support bracket 33. The carbon brush 37 arranged on the support bracket can lead the current out of the roller 4 instead of passing through the roller 4, reducing the damage rate of the bearing inside the roller 4, prolonging the service life of the roller 4, reducing the maintenance and replacement frequency, and helping to improve the reliability and stability of the equipment.

[0029] In order to drive the shaft workpiece to rotate for thickening repair, in this embodiment, refer to Figure 2 and Figure 3 , a connection driving mechanism 5 is arranged at one end of the roller 4. The connection driving mechanism 5 includes a connection seat 51. The connection seat 51 is fixedly arranged at one end of the moving component 1. A driving motor is fixedly arranged inside the upper end of the connection seat 51. The output shaft of the driving motor is coaxially provided with a universal joint 52. The universal joint 52 is detachably and fixedly connected to one end of the roller 4. The connection driving mechanism 5 ensures to change the position of the axis of the roller 4 and realizes the constant angular velocity transmission between the roller 4 and the output shaft. Two slide rails are arranged in parallel along the side line on the same side of the two moving components 1. A welding machine 6 is arranged on the slide rails. The cooperation of the slide rails and the welding machine 6 avoids the possible dangers caused by manual operation, improves the repair safety, and greatly reduces the labor cost.

[0030] Usage method of the shaft diameter thickening repair device for shaft workpieces of the present utility model: Place the shaft workpiece between the rollers 4 at both ends, and fixedly connect the universal joint 52 on the connecting drive mechanism 5 at the end to the end of the shaft workpiece with bolts. The drive motor and the electric welding machine 6 perform the thickening repair work. When it is necessary to place shaft workpieces with different lengths and diameters, the moving component 1 can be adjusted to adapt to the length of the shaft workpiece. Rotating the adjusting head 13 can adjust the position of the conveying chain 12, and further adjust the position of the repair base 2 thereon. Adjust the supporting component 3 to change the vertical height of the shaft workpiece. First, loosen the threaded columns 32 at both ends of the supporting bracket 33, insert the adjusting column into the adjusting block 35 and rotate it, so that the supporting bracket 33 makes a vertical displacement. After it reaches the required height, tighten the nuts on the threaded columns 32 to fix the supporting bracket 33. The carbon brush 37 provided on the supporting bracket 33 can lead the current out of the roller 4 without passing through the roller 4, reducing the damage rate of the bearings inside the roller 4, prolonging the service life of the roller 4, reducing the maintenance and replacement frequency, and helping to improve the reliability and stability of the equipment.

[0031] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. The use of words such as "a" or "an" in the description and claims of this application does not necessarily indicate a limitation in quantity. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0032] The exemplary embodiments of the present utility model have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present utility model, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present utility model can be made without exceeding the protection scope of the present utility model.

Claims

1. A shaft diameter thickening repair device for shaft workpieces, characterized in that: It includes a moving component (1) at the bottom. A repair base (2) is provided on each of the moving components (1). An adjustable support component (3) is provided at the top of each of the repair bases (2). A roller (4) is supported on the adjustable support component (3). The adjustable support component (3) can adjust the support height of the roller (4). One end of the roller (4) is provided with a connecting drive mechanism (5). The connecting drive mechanism (5) is connected to this end of the roller (4). The connecting drive mechanism (5) ensures changing the position of the axis of the roller (4) to achieve constant angular velocity transmission between the roller (4) and the output shaft. Two slide rails are arranged in parallel along the side line on the same side of the two moving components (1). A welding machine (6) is arranged on the slide rails.

2. The shaft diameter thickening repair device for shaft workpieces according to claim 1, characterized in that: The adjustable support component (3) includes a connecting block (31). The two connecting blocks (31) are symmetrically arranged at both ends of the top of the repair base (2). A waist-shaped hole is opened on the connecting block (31). A support bracket (33) is slidably arranged between the two connecting blocks (31). The support bracket (33) and the connecting block (31) are detachably fixed through a threaded column (32) passing through the waist-shaped hole. The roller (4) is symmetrically arranged along the center on the support bracket (33). Clips (34) are arranged at both ends of the roller (4). The clips (34) are detachably and fixedly connected to the top of the support bracket (33). An adjusting threaded column (36) is rotatably arranged at the top of the repair base (2) in the center of the support bracket (33). An adjusting block (35) is fixedly sleeved on the adjusting threaded column (36).

3. The shaft diameter thickening repair device for shaft workpieces according to claim 2, characterized in that: The adjustable support component (3) further includes a carbon brush (37). A rotatable and adjustable carbon brush (37) is arranged on the support bracket (33).

4. The shaft diameter thickening repair device for shaft workpieces according to claim 1, characterized in that: The connecting drive mechanism (5) includes a connecting seat (51). The connecting seat (51) is arranged at one end of the moving component (1). A drive motor is arranged inside the upper end of the connecting seat (51). A universal joint (52) is coaxially arranged on the output shaft of the drive motor. The universal joint (52) is detachably and fixedly connected to one end of the roller (4).

5. The shaft diameter thickening repair equipment for shaft workpieces according to claim 1, characterized in that: The moving component (1) includes a bottom plate (11). T-shaped chutes (14) are opened at both ends of the bottom plate (11). Bolts are slidably arranged in the T-shaped chutes (14). The bolts pass through both ends of the bottom of the repair base (2) and are detachably fixed through nuts. A conveying groove (15) is opened in the middle of the bottom plate (11). A conveying chain (12) is arranged in the conveying groove (15). The conveying chain (12) is fixedly arranged with the bottom of the repair base (2). An adjusting head (13) is arranged at one end of the bottom plate (11). The inside of the adjusting head (13) is connected to the conveying chain (12). Rotating the adjusting head (13) can adjust the position of the conveying chain (12).

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