A manual bearing scraping device

Abstract

This utility model discloses a manual bearing scraping device, relating to the field of mechanical maintenance tools. It includes a bearing scraper blade, an adjustable bearing fixing frame for fixing the bearing, and a gantry frame spanning the outside of the adjustable bearing fixing frame. The gantry frame has longitudinal grooves on both sides, with sliding blocks slidably connected inside the longitudinal grooves. A square shaft drive rod is rotatably connected between two sets of sliding blocks. A cylindrical body is movably fitted onto the outer surface of the square shaft drive rod. A fixing sleeve is movably fitted onto the outer surface of the bearing scraper blade, and the fixing sleeve has a locking knob for fixing the bearing scraper blade. The cylindrical body is fixedly connected to the fixing sleeve. The gantry frame also has an adjustment mechanism for adjusting the cylindrical body in the horizontal and vertical directions. This utility model is applicable to bearings of different sizes and models, reducing manual deviation and maintenance costs, while improving accuracy, efficiency, and applicability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical repair tools, specifically to a manual bearing scraping device. Background Technology

[0002] As a key component of sliding bearings, motor bearing bushes require precise fitting with the journal to ensure lubrication and load-bearing performance. Traditional scraping processes rely on manual scraping, using scrapers or scraper blades to manually finish the inner surface of the bearing bush, resulting in low efficiency, high labor intensity, and inconsistent precision. Skilled workers need to repeatedly scrape and use "red lead powder" to inspect contact spots, which is time-consuming and dependent on experience. While existing semi-mechanized tools can improve the accuracy of straight scraping, they are difficult to adapt to different bearing bush curvature variations; and fully automatic scraping equipment is expensive and unsuitable for small to medium batch repair scenarios. Therefore, there is an urgent need for a manual scraping device that is easy to operate, moderately priced, and can guarantee scraping quality, in order to improve assembly efficiency and reduce over-reliance on worker skills. Utility Model Content

[0003] The purpose of this invention is to provide a manual bearing scraping device, which aims to solve the problem that existing tools in the background art are difficult to adapt to different bearing curvature changes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a manual bearing scraping device, including a scraper blade, an adjustable bearing fixing frame for fixing the bearing, and a gantry frame spanning the outside of the adjustable bearing fixing frame. The gantry frame has longitudinal grooves on both sides, with sliding blocks slidably connected inside the longitudinal grooves. A square shaft drive rod is rotatably connected between two sets of sliding blocks. A cylindrical body is slidably fitted onto the outer surface of the square shaft drive rod in the horizontal direction. The scraper blade is detachably mounted on a fixed sleeve, and the fixed sleeve is equipped with a locking knob for fixing the scraper blade. The cylindrical body is fixedly connected to the fixed sleeve. The gantry frame is also equipped with an adjustment mechanism for adjusting the cylindrical body in the horizontal and vertical directions.

[0005] Furthermore, the adjustment mechanism includes a horizontal lead screw and a vertical lead screw. An adjustment groove is provided through the top of the portal frame. The horizontal lead screw is rotatably connected to the inner side of the adjustment groove. A sliding seat is threadedly connected to the horizontal lead screw, and the outer surface of the sliding seat slides in cooperation with the inner wall of the adjustment groove. A rotating seat is rotatably provided on the outer wall of the cylinder. The vertical lead screw is threadedly connected to the sliding seat, and its bottom end is fixedly connected to the rotating seat.

[0006] Furthermore, the adjustable bearing bush fixing frame is rectangular and has mounting brackets for fixing bearing bushes on both sides of the top. The four sides of the adjustable bearing bush fixing frame are telescopic structures. Each side includes a fixing rod, and both ends of the fixing rod are fitted with telescopic sleeves. The telescopic sleeves are slidably connected to the fixing rods, and both sets of telescopic sleeves are equipped with telescopic locking components.

[0007] Furthermore, the telescopic locking assembly includes a nut embedded in the telescopic sleeve, and a locking bolt adapted to it is provided on the nut, the locking bolt abutting against the fixing rod.

[0008] Furthermore, the adjustable bearing fixing bracket is provided with a support leg at its bottom end.

[0009] Furthermore, one end of the square shaft drive rod passes through the sliding block and is fixedly mounted with a crank handle.

[0010] This utility model has the following beneficial effects:

[0011] This utility model provides a manual bearing scraping device. Compared with pure manual scraping, it can quickly position the bearing through an adjustable bearing fixing frame, and can be applied to bearings of different models and sizes, shortening the operation time, especially suitable for batch repair scenarios. The use of a vertical lead screw and a fixing sleeve makes the scraper blade movement trajectory accurately match the inner curved surface of the bearing, reducing human error and ensuring uniform distribution of contact spots. It retains the flexibility of manual operation, reduces maintenance costs, and improves accuracy, efficiency and applicability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the side structure of this utility model;

[0014] Figure 3 This is a top view of the adjustable bearing fixing bracket in this utility model.

[0015] In the diagram: 1. Scraper blade; 2. Adjustable bearing holder; 3. Gantry frame; 4. Sliding block; 5. Square shaft drive rod; 6. Cylinder; 7. Fixed sleeve; 8. Horizontal lead screw; 9. Vertical lead screw; 10. Sliding seat; 11. Rotating seat; 12. Mounting bracket; 13. Fixed rod; 14. Telescopic sleeve; 15. Support leg; 16. Handle. Detailed Implementation

[0016] like Figures 1 to 3As shown, a manual bearing scraping device includes a scraper blade 1, an adjustable bearing fixing frame 2 for fixing the bearing, and a gantry frame 3 spanning the outside of the adjustable bearing fixing frame 2. Both sides of the gantry frame 3 have longitudinal grooves, and sliding blocks 4 are slidably connected inside the longitudinal grooves. A square shaft drive rod 5 is rotatably connected between two sets of sliding blocks 4. One end of the square shaft drive rod 5 passes through the sliding block 4 and is fixedly mounted with a crank handle 16. A cylindrical body 6 is slidably fitted horizontally on the outer surface of the square shaft drive rod 5. A square groove is formed inside the cylindrical body 6 that slides with the outer surface of the square shaft drive rod 5. The scraper blade 1 is detachably mounted on... The fixed sleeve 7 is equipped with a locking knob for fixing the scraper blade 1. The fixed sleeve 7 is fixedly connected to the cylinder 6. The gantry frame 3 is also equipped with an adjustment mechanism for adjusting the cylinder 6 in the horizontal and vertical directions. Since the fixed sleeve 7 is fixedly connected to the cylinder 6, the scraper blade 1 can move synchronously with the movement of the cylinder 6. By turning the crank handle 16, the scraper blade 1 can perform scraping operations. In the initial state, the scraper blade 1 is fixed on the fixed sleeve 7 and is in a vertical state. The locking knob can adjust the rotation radius of the scraper blade 1 and also adjust the feed amount of the scraper blade 1.

[0017] The adjustment mechanism includes a horizontal lead screw 8 and a vertical lead screw 9. An adjustment groove is provided through the top of the gantry frame 3. The horizontal lead screw 8 is rotatably connected to the inner side of the adjustment groove. A sliding seat 10 is threadedly connected to the horizontal lead screw 8, and the outer surface of the sliding seat 10 slides in contact with the inner wall of the adjustment groove. A rotating seat 11 is rotatably provided on the outer wall of the annulus of the cylinder 6. The vertical lead screw 9 is threadedly connected to the sliding seat 10, and its bottom end is fixedly connected to the rotating seat 11. The horizontal lead screw 8 realizes the horizontal movement of the scraper blade 1. The vertical lead screw 9 is used to adjust the height of the rotation center of the scraper blade 1. By adjusting the vertical lead screw 9, the blade head at the bottom of the scraper blade 1 is pressed against the inner wall of the bearing. A crank is also provided at one end of the horizontal lead screw 8. Rotating the horizontal lead screw 8 causes the sliding seat 10 to move horizontally back and forth.

[0018] The adjustable bearing bush fixing bracket 2 is rectangular and has mounting brackets 12 for fixing bearing bushes on both sides of the top. The mounting bracket 12 is an inverted L-shaped plate with bolt holes for fixing bearing bushes on the top. The adjustable bearing bush fixing bracket 2 has support legs 15 at the bottom. The bearing bushes are fixed to the mounting bracket 12 by bolts. The four sides of the adjustable bearing bush fixing bracket 2 are telescopic structures to accommodate the fixing of bearing bushes of different sizes. The sides include fixing rods 13, and telescopic sleeves 14 are fitted at both ends of the fixing rods 13. The telescopic sleeves 14 are slidably connected to the fixing rods 13. Both sets of telescopic sleeves 14 are equipped with telescopic locking components. In order to prevent interference with the upper device during the telescopic process, the adjustable bearing bush fixing bracket 2 is isolated from other components, and the rotation center of the scraper blade 1 moves along the central axis of the bearing bush.

[0019] The telescopic locking assembly includes a nut embedded in the telescopic sleeve 14, and a locking bolt adapted to it, which abuts against the fixing rod 13.

[0020] The specific operation process of this utility model is as follows:

[0021] According to the outer dimensions of the bearing bush, the operator adjusts the telescopic frame of the adjustable bearing bush fixing bracket 2 to align the bearing bush with the holes on the mounting bracket 12 and fixes it with bolts; the handle of the scraper blade 1 is passed through the fixing sleeve 7, and the vertical screw 9 and the extension of the scraper blade 1 in the fixing sleeve 7 are adjusted so that the scraper blade 1 fits against the inner wall of the bearing bush when it rotates, ensuring that the rotation center of the scraper blade 1 can move along the central axis of the bearing bush. All components are tightened and a certain feed is set. The square shaft drive rod 5 is rotated to make the scraper blade 1 rotate, and the horizontal screw 8 makes the scraper blade 1 move axially in the bearing bush, thereby scraping the inner wall of the bearing bush.

Claims

1. A hand-held bearing shell skiving device comprising a skiving tool (1), characterized in that It also includes an adjustable bearing bush fixing bracket (2) for fixing the bearing bush and a gantry frame (3) spanning the outside of the adjustable bearing bush fixing bracket (2). The gantry frame (3) has longitudinal sliding grooves on both sides. Sliding blocks (4) are slidably connected inside the longitudinal sliding grooves. A square shaft drive rod (5) is rotatably connected between the two sets of sliding blocks (4). A cylindrical body (6) is slidably fitted on the outer surface of the square shaft drive rod (5) in the horizontal direction. The scraper blade (1) is detachably installed on the fixed sleeve (7) and the fixed sleeve (7) is provided with a locking knob for fixing the scraper blade (1). The cylindrical body (6) is fixedly connected to the fixed sleeve (7). The gantry frame (3) is also provided with an adjustment mechanism for adjusting the cylindrical body (6) in the horizontal and vertical directions.

2. The bearing scraping device according to claim 1, characterized in that, The adjustment mechanism includes a horizontal lead screw (8) and a vertical lead screw (9). The top of the gantry frame (3) is provided with an adjustment groove. The horizontal lead screw (8) is rotatably connected to the inner side of the adjustment groove. A sliding seat (10) is threadedly connected to the horizontal lead screw (8), and the outer surface of the sliding seat (10) slides in cooperation with the inner wall of the adjustment groove. A rotating seat (11) is rotatably provided on the outer wall of the annulus of the cylinder (6). The vertical lead screw (9) is threadedly connected to the sliding seat (10), and its bottom end is fixedly connected to the rotating seat (11).

3. The bearing scraping device according to claim 1, characterized in that, The adjustable bearing bush fixing bracket (2) is rectangular and has mounting brackets (12) for fixing bearing bushes on both sides of the top. The four sides of the adjustable bearing bush fixing bracket (2) are telescopic structures. The sides include fixing rods (13). Both ends of the fixing rods (13) are fitted with telescopic sleeves (14). The telescopic sleeves (14) are slidably connected to the fixing rods (13). Both sets of telescopic sleeves (14) are equipped with telescopic locking components.

4. The bearing scraping device according to claim 3, characterized in that, The telescopic locking assembly includes a nut embedded in the telescopic sleeve (14), and a locking bolt adapted to it is provided on the nut, the locking bolt abutting against the fixing rod (13).

5. The bearing scraping device according to claim 1, characterized in that, The adjustable bearing fixing bracket (2) has a support leg (15) at the bottom.

6. The bearing scraping device according to claim 1, characterized in that, One end of the square shaft drive rod (5) passes through the sliding block (4) and is fixedly mounted with a crank (16).

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