Rolling shaft repairing tool

Abstract

The utility model relates to spraying device technical field, and disclose a kind of tool for roller shaft repair, including the base for bearing overall structure, the adjusting mechanism for adjusting spraying position assembled in the top of the base, the synchronous mechanism for synchronously adjusting the distance of spray gun assembled in the top of the adjusting mechanism, and the clamping assembly for clamping roller shaft.The tool for roller shaft repair, the stable fixation of roller shaft is realized by clamping assembly, the movable frame can be pushed along the movable slot of bottom plate sliding by second hydraulic rod, the interval of movable frame and fixed frame is flexibly adjusted according to roller shaft length, and different length specifications of roller shaft are adapted.

Description

Technical Field

[0001] This utility model relates to the field of roller shaft repair tooling technology, and in particular to a tooling for repairing roller shafts. Background Technology

[0002] Roller rollers are one of the core components in industrial production, widely used in conveying, packaging, stamping, metallurgy, and other fields. Their working condition directly affects production efficiency and product quality. During long-term use, the surface of roller rollers is prone to wear, scratches, rust, and other damage due to material friction, environmental corrosion, impact loads, and other factors. Directly replacing the roller roller with a new one would significantly increase production costs; therefore, repair processes are necessary to extend its service life.

[0003] Spray coating repair is a common method for repairing roller bearings. By uniformly spraying alloy powder or anti-corrosion coatings onto the damaged surface of the roller bearing, a protective coating is formed, which can effectively restore the dimensional accuracy and surface properties of the roller bearing and improve its wear resistance and corrosion resistance. However, there are two major problems in the existing roller bearing repair process: First, the clamping stability of the roller bearing is insufficient. Traditional tooling often uses simple brackets for support, making it difficult to flexibly adjust the clamping position according to the length and diameter of the roller bearing. During repair, the roller bearing is prone to shaking, causing the spray trajectory to deviate. Second, the distance between the spray gun and the surface of the roller bearing is difficult to control precisely, and it often relies on manual operation of the spray gun. The instability of manual operation can lead to uneven coating thickness, missed spraying, or over-spraying, which seriously affects the repair quality. At the same time, manual operation is inefficient and increases the labor intensity of operators.

[0004] To address the aforementioned issues, this invention designs a tooling for repairing roller press shafts. By optimizing the clamping structure and synchronous adjustment mechanism, it achieves stable clamping of the roller press shaft and precise control of the spray gun distance, thereby improving repair quality and efficiency. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a tooling for repairing roller shafts that is highly practical, easy to operate, and has a simple structure, thus solving the problem mentioned in the background art that it is difficult to maintain the distance between the spray gun and the roller shaft manually.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tooling for repairing a roller press shaft, comprising a base for supporting the overall structure, an adjustment mechanism mounted on the top of the base for adjusting the spraying position, a synchronization mechanism mounted on the top of the adjustment mechanism for synchronously adjusting the spray gun distance, and a clamping assembly for clamping the roller press shaft; the clamping assembly includes a fixed frame fixedly connected to one side of the top of the base, a movable frame slidably connected to the top of the base, a second hydraulic rod fixedly connected to the other side of the top of the base and whose output end is fixedly connected to the movable frame, a cylinder rotatably connected to the top of the movable frame, a bidirectional threaded rod mounted on one end of the cylinder, an L-shaped block threaded to both sides of the surface of the bidirectional threaded rod for clamping the roller press shaft, and a second servo motor fixedly installed on one side of the movable frame for driving the roller press shaft to rotate; the output end of the second servo motor is fixedly connected to a bracket, the other end of the bracket is fixedly connected to the cylinder, and the fixed frame and the movable frame have coaxial circular holes for assembling the roller press shaft.

[0007] Preferably, the base includes a base plate and a rectangular groove formed on the top of the base plate for mounting the adjustment mechanism.

[0008] Preferably, the adjustment mechanism includes a movable block slidably connected inside the rectangular groove and a first hydraulic rod fixedly connected to the inner wall of the rectangular groove, wherein the output end of the first hydraulic rod is fixedly connected to one side of the movable block.

[0009] Preferably, the synchronization mechanism includes a first ring fixedly connected to the top of the movable block, a ring plate fixedly connected to one side of the first ring, a second ring fixedly connected to one side of the ring plate, and a spray gun fixedly connected to one side of the surface of the movable rod; the surfaces of the first ring and the second ring are arranged with a plurality of sliding grooves, a plurality of movable rods are slidably connected inside the plurality of sliding grooves, teeth are fixedly provided on one side of the plurality of movable rods, the teeth mesh with a plurality of gear columns, a gear ring is meshed on one side of the surface of the plurality of gear columns, the surface of the gear ring is rotatably connected to one side of the surface of the first ring, and one end of the plurality of gear columns is rotatably connected to the surface of the ring plate.

[0010] Preferably, a first servo motor is fixedly installed on the other side of the annular plate. The output end of the first servo motor passes through the annular plate and is fixedly connected to a gear, which meshes with the gear ring.

[0011] Preferably, the base plate has movable grooves on both sides of its top, and the movable frame is slidably connected inside the movable grooves.

[0012] Preferably, the cylindrical surface has a groove adapted to the L-shaped block, and the surface of the L-shaped block is slidably connected to the inside of the groove.

[0013] Preferably, the support surface has a cavity for the bidirectional threaded rod to move.

[0014] This utility model provides a tooling for repairing roller shafts, which has the following beneficial effects: This tooling for repairing roller bearings uses a clamping assembly to stably fix the roller bearing. A second hydraulic rod can push a movable frame to slide along the movable groove of the base plate. The distance between the movable frame and the fixed frame can be flexibly adjusted according to the length of the roller bearing to accommodate roller bearings of different lengths. At the same time, rotating the bidirectional threaded rod can drive the L-shaped blocks on both sides to slide relative to each other along the groove of the cylinder, tightly clamping the end of the roller bearing and preventing the roller bearing from shaking during the repair process, thus providing a stable foundation for precise spraying. The synchronization mechanism can achieve synchronous and precise control of the distance between multiple spray guns and the surface of the roller bearing. The first servo motor drives the gear to rotate, which drives the gear ring and several gear columns to move together, and then pushes the movable rod to slide along the slide groove through the teeth, so that all spray guns move closer to or further away from the roller bearing at the same time, ensuring that the distance between each spray gun and the surface of the roller bearing is consistent. This completely solves the problem of unstable distance when manually holding the spray gun, effectively ensuring uniform coating thickness and improving repair quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the synchronization mechanism of this utility model; Figure 5 This is a schematic diagram of the cylindrical structure of this utility model.

[0016] In the diagram: 1. Base; 101. Base plate; 102. Rectangular groove; 2. Adjustment mechanism; 201. Movable block; 202. First hydraulic rod; 3. Synchronization mechanism; 301. First ring; 302. Ring plate; 303. Second ring; 304. Slide groove; 305. Movable rod; 306. Gear; 307. Gear column; 308. Gear ring; 309. First servo motor; 310. Gear; 311. Spray gun; 4. Fixed frame; 5. Movable frame; 6. Second hydraulic rod; 7. Cylinder; 8. Bidirectional threaded rod; 9. L-shaped block; 10. Second servo motor; 11. Support. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please refer to Figures 1 to 5. This utility model provides a technical solution: a tooling for repairing roller shafts, the structure of which includes a base (1), an adjustment mechanism (2), a synchronization mechanism (3), and a clamping assembly. The specific connection and working process of each component are as follows: Installation and clamping of the roller shaft: First, insert one end of the roller shaft to be repaired into the coaxial circular hole at the top of the fixed frame (4) to ensure that the axis of the roller shaft is aligned with the axis of the circular hole; then, start the second hydraulic rod (6), and the output end of the second hydraulic rod (6) pushes the movable frame (5) to slide along the movable groove at the top of the base plate (101) until the cylinder (7) at the top of the movable frame (5) is fitted into the other end of the roller shaft; next, rotate the double-threaded rod (8). Since the threads on both sides of the double-threaded rod (8) are opposite, its rotation will drive the L-shaped blocks (9) on both sides to slide relative to each other along the groove on the surface of the cylinder (7) until the L-shaped blocks (9) are tightly attached to the end of the roller shaft, thus completing the clamping and fixing of the roller shaft; finally, start the second servo motor (10), and the output end of the second servo motor (10) drives the cylinder (7) to rotate through the bracket (11), thereby driving the roller shaft to rotate at a stable speed, preparing for subsequent spraying.

[0019] Synchronous adjustment of spray gun distance: After the roller shaft is clamped, adjust the distance between the spray gun (311) and the roller shaft surface according to the diameter specification of the roller shaft: Start the first servo motor (309), the output end of the first servo motor (309) drives the gear (310) to rotate, the gear (310) meshes with the gear ring (308), and then drives the gear ring (308) to rotate on the surface of the first ring (301); when the gear ring (308) rotates, it meshes with several gear columns (307), driving all gear columns. (307) Rotate synchronously; the gear column (307) meshes with the teeth (306) on one side of the movable rod (305), driving the movable rod (305) to slide along the sliding groove (304) on the surface of the first ring (301) and the second ring (303) towards the roller shaft until the distance between all spray guns (311) and the surface of the roller shaft reaches the preset spraying distance (usually 5-15cm, which can be adjusted according to the characteristics of the spraying material), and then the first servo motor (309) is turned off to complete the spray gun distance adjustment.

[0020] Repairing the roller shaft by spraying: Connect the spray gun (311) to external spraying equipment (such as high-pressure sprayer, powder sprayer, etc.) to ensure a stable supply of spraying material; start the first hydraulic rod (202), the output end of the first hydraulic rod (202) pushes the movable block (201) to slide slowly along the rectangular groove (102), the movable block (201) drives the top synchronization mechanism (3) to move synchronously with the spray gun (311); at the same time, the roller shaft keeps rotating steadily under the drive of the second servo motor (10), the spray gun (311) sprays the repair material evenly onto the surface of the roller shaft during the movement until the spraying operation of the entire roller shaft surface is completed; after the spraying is completed, turn off the first hydraulic rod (202), the second servo motor (10) and the external spraying equipment in sequence, rotate the bidirectional threaded rod (8) in the opposite direction to loosen the L-shaped block (9), start the second hydraulic rod (6) to drive the movable frame (5) to reset, and finally take out the repaired roller shaft.

[0021] It should be noted that in the tooling of this utility model, the control of the first servo motor (309), the second servo motor (10), the first hydraulic rod (202) and the second hydraulic rod (6) can be automated and linked by a conventional controller (such as a PLC controller). The control circuit of the controller can be implemented by those skilled in the art according to conventional programming methods. In addition, the standard parts used in the tooling (such as bolts, bearings, hydraulic rods, servo motors, etc.) can all be purchased from the market. The connection methods of each component adopt conventional methods such as bolt connection, welding, and bearing rotation connection that are mature in the prior art. The assembly and debugging of the mechanical structure are all conventional operations of those skilled in the art.

[0022] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool for repairing a roll shaft, characterized by: The system includes a base (1) for supporting the overall structure, an adjustment mechanism (2) mounted on the top of the base (1) for adjusting the spraying position, a synchronization mechanism (3) mounted on the top of the adjustment mechanism (2) for synchronously adjusting the spray gun distance, and a clamping assembly for clamping the roller shaft. The clamping assembly includes a fixed frame (4) fixedly connected to one side of the top of the base (1), a movable frame (5) slidably connected to the top of the base (1), a second hydraulic rod (6) fixedly connected to the other side of the top of the base (1) and whose output end is fixedly connected to the movable frame (5), a cylinder (7) rotatably connected to the top of the movable frame (5), a bidirectional threaded rod (8) mounted on one end of the cylinder (7), and an L-shaped screw threaded rod threaded to both sides of the surface of the bidirectional threaded rod (8) for clamping the roller shaft. The block (9) and the second servo motor (10) fixedly installed on one side of the movable frame (5) and used to drive the roller shaft to rotate; the output end of the second servo motor (10) is fixedly connected to the bracket (11), the other end of the bracket (11) is fixedly connected to the cylinder (7), and the fixed frame (4) and the top of the movable frame (5) are provided with coaxial circular holes for the roller shaft to be assembled.

2. The tooling for repairing a roll shaft according to claim 1, wherein: The base (1) includes a base plate (101) and a rectangular groove (102) opened on the top of the base plate (101) for mounting the adjustment mechanism (2).

3. The tooling for repairing a roller press shaft according to claim 2, characterized in that: The adjustment mechanism (2) includes a movable block (201) slidably connected inside the rectangular groove (102) and a first hydraulic rod (202) fixedly connected to the inner wall of the rectangular groove (102). The output end of the first hydraulic rod (202) is fixedly connected to one side of the movable block (201).

4. The tooling for repairing a roll shaft according to claim 3, wherein: The synchronization mechanism (3) includes a first ring (301) fixedly connected to the top of the movable block (201), a ring plate (302) fixedly connected to one side of the first ring (301), a second ring (303) fixedly connected to one side of the ring plate (302), and a spray gun (311) fixedly connected to one side of the surface of the movable rod (305); the surfaces of the first ring (301) and the second ring (303) are arranged with a plurality of grooves (304), and the plurality of grooves (304) A plurality of movable rods (305) are internally slidably connected. A tooth (306) is fixedly provided on one side of the plurality of movable rods (305). The tooth (306) meshes with a plurality of gear columns (307). A gear ring (308) is meshed on one side of the surface of the plurality of gear columns (307). The surface of the gear ring (308) is rotatably connected to one side of the surface of the first ring (301). One end of the plurality of gear columns (307) is rotatably connected to the surface of the ring plate (302).

5. The tooling for repairing a roll shaft according to claim 4, wherein: A first servo motor (309) is fixedly installed on the other side of the annular plate (302). The output end of the first servo motor (309) passes through the annular plate (302) and is fixedly connected to a gear (310). The gear (310) meshes with the gear ring (308).

6. The tooling for repairing a roll shaft according to claim 2, wherein: The bottom plate (101) has movable slots on both sides of its top, and the movable frame (5) is slidably connected to the inside of the movable slots.

7. The tooling for repairing a roll shaft according to claim 1, wherein: The surface of the cylinder (7) is provided with a groove that is adapted to the L-shaped block (9), and the surface of the L-shaped block (9) is slidably connected to the inside of the groove.

8. The tooling for repairing a roll shaft according to claim 1, wherein: The surface of the bracket (11) has a cavity for the bidirectional threaded rod (8) to move.

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