Engine crankshaft timing gear dismounting tool

Abstract

The utility model discloses an engine crankshaft timing gear dismounting tool which comprises an operation table, an installation groove is formed in the upper surface of the operation table, a guide shaft is fixedly connected to the side inner wall of the installation groove, a sleeve is movably connected to the side surface of the guide shaft, and a transverse block is fixedly connected to the upper surface of the sleeve. According to the structure, through cooperation of the guide shaft, the sleeve, the transverse block, the first telescopic rod, the supporting plate, the limiting block, the threaded rod, the vertical plate, the second telescopic rod and the pressing plate, maintenance personnel are helped to limit and fix crankshafts with different lengths when the crankshafts and the timing gear are disassembled and assembled, and the crankshafts can be clamped at the positions of the two sides of the crankshafts; and the height of the fixed crankshaft can be adjusted, so that the crankshaft is suitable for people with different heights, the use comfort of maintenance personnel is improved, the disassembled timing gear can be matched with upper bristles and lower bristles in the cleaning frame to brush the surface, and follow-up reinstallation and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to a disassembly tool for a timing gear of a crankshaft of an engine. Background Art

[0002] The engine crankshaft timing gear is one of the important components to ensure the normal operation of the engine. The timing of the intake and exhaust camshafts and the crankshaft needs to be precisely calibrated. During the removal and installation of the crankshaft timing gear, in order to avoid improper operation causing a decline in engine performance or even damage to the engine, the use of special disassembly tools becomes a necessary and professional practice.

[0003] In a car engine, when the size of the engine crankshaft is worn to the limit or damaged and cannot be used, the crankshaft needs to be replaced. At this time, the timing gear needs to be removed first. The timing gear and the crankshaft journal are interference fit, and the torque is transmitted through the interference fit and the flat key. During the crankshaft replacement process, the timing gear needs to be removed and then installed on the new crankshaft. When removing the timing gear, its position needs to be restricted to facilitate the removal of the timing gear. However, due to the different crankshaft lengths of different engines, the distance between the existing disassembly tooling limit devices is certain, and it may not be possible to effectively limit the position of the two ends of the crankshaft, affecting the removal of the timing gear. Utility Model Content

[0004] According to the engine crankshaft timing gear disassembly tool described, the purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an engine crankshaft timing gear disassembly tool, which cooperates with the guide shaft, sleeve, cross block, first telescopic rod, support plate, limit block, threaded rod, vertical plate, second telescopic rod and pressure plate to help maintenance personnel to limit and fix crankshafts of different lengths when disassembling and assembling the crankshaft and timing gear, so that the crankshaft can be stuck in the positions on both sides of the crankshaft, and the height of the crankshaft after fixation can be adjusted to make it suitable for people of different heights, thereby improving the comfort of maintenance personnel, and the disassembled timing gear can be cleaned on the surface with the upper and lower brushes in the cleaning frame, so as to facilitate subsequent installation and use.

[0005] To achieve the above-mentioned purpose, the utility model also provides the above-mentioned operating table, the upper surface of the operating table is provided with a mounting groove, the side inner wall of the mounting groove is fixedly connected with a guide shaft, the side surface of the guide shaft is movably connected with a sleeve, the guide shaft cooperates with the sleeve so that the sleeve can move, so that the distance between the two support plates can be adjusted, and thus it is suitable for limiting support of crankshafts of different lengths, the upper surface of the sleeve is fixedly connected with a cross block, the upper surface of the cross block is fixedly connected with a first telescopic rod, the first telescopic rod can adjust the height of the crankshaft after limiting through telescoping, so that the operating comfort of the operator is improved, the output end of the first telescopic rod is fixedly connected with the support plate, the upper surface of the support plate is fixedly connected with the limiting block, the upper surface of the support plate is threadedly connected with a threaded rod, one end of the threaded rod is fixedly connected with a vertical plate, the side surface of the vertical plate is fixedly connected with a second telescopic rod, and the output end of the second telescopic rod is fixedly connected with a pressing plate, which can hold the crankshaft against it to make it more secure;

[0006] A cleaning frame is fixedly connected to the upper surface of the operating table, and a motor is fixedly connected to the lower surface of the cleaning frame. The motor rotates to rotate the support frame and the timing gear above, constantly contacting the upper bristles and the lower bristles, so that the surface of the removed timing gear is cleaned. The output end of the motor is fixedly connected to a rotating shaft, and the side surface of the rotating shaft is fixedly connected to the support frame. The upper surface of the support frame is movably connected to the timing gear, the bottom inner wall of the cleaning frame is fixedly connected to the lower bristles, and the upper surface of the cleaning frame is fixedly connected to a guide column, and the side surface of the guide column is rotatably connected to the upper bristles.

[0007] According to the engine crankshaft timing gear disassembly tool, the side surface of the sleeve is movably connected to the operating table, and the lower surface of the cross block is movably connected to the operating table.

[0008] According to the engine crankshaft timing gear disassembly tool, the end of the threaded rod away from the vertical plate is fixedly connected to a disc, which saves more effort when rotating the threaded rod, and the lower surface of the horizontal block is fixedly connected to the operating table.

[0009] According to the engine crankshaft timing gear disassembly tool, the lower surface of the operating table is fixedly connected with a support leg, and the side surface of the support plate is fixedly connected with a limit plate.

[0010] According to the engine crankshaft timing gear disassembly tool, the side surface of the limit plate is movably connected to the vertical plate, and the motor is electrically connected to the external power supply.

[0011] According to the engine crankshaft timing gear disassembly tool, the side surface of the rotating shaft is rotatably connected to the cleaning frame, the side inner wall of the support frame is fixedly connected with a spring, and one end of the spring is fixedly connected with an L-shaped clamping rod.

[0012] According to the engine crankshaft timing gear disassembly tool, the side surface of the L-shaped clamping rod is movably connected to the timing gear, and the side surface of the lower brush bristle is movably connected to the timing gear.

[0013] According to the engine crankshaft timing gear disassembly tool, the side surface of the upper bristles is movably connected to the timing gear.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of a tool for disassembling an engine crankshaft timing gear according to the utility model;

[0017] Figure 2 It is a side view of a tool for disassembling the engine crankshaft timing gear of the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of an engine crankshaft timing gear disassembly tool of the utility model;

[0019] Figure 4 The utility model is a partial structural explosion diagram of an engine crankshaft timing gear disassembly tool.

[0020] Legend:

[0021] 1. Operating table; 2. Mounting slot; 3. Guide shaft; 4. Sleeve; 5. Horizontal block; 6. First telescopic rod; 7. Support plate; 8. Limit block; 9. Threaded rod; 10. Vertical plate; 11. Second telescopic rod; 12. Press plate; 13. Limit plate; 14. Motor; 15. Cleaning frame; 16. Rotating shaft; 17. Support frame; 18. Lower brush; 19. Guide column; 20. Upper brush; 21. Timing gear. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4The utility model embodiment is a tool for disassembling the timing gear of an engine crankshaft, which includes an operating table 1. The upper surface of the operating table 1 is provided with a mounting groove 2. The inner side wall of the mounting groove 2 is fixedly connected with a guide shaft 3. The side surface of the guide shaft 3 is movably connected with a sleeve 4. The guide shaft 3 cooperates with the sleeve 4 so that the sleeve 4 can move, so that the distance between the two support plates 7 can be adjusted, so as to be suitable for limiting support of crankshafts of different lengths. The upper surface of the sleeve 4 is fixedly connected with a cross block 5. The side surface of the sleeve 4 is movably connected to the operating table 1. The lower surface of the cross block 5 is movably connected to the operating table 1. The upper surface of the cross block 5 is fixedly connected with a first telescopic rod 6. The first telescopic rod 6 can adjust the crankshaft after limiting by telescoping. The height improves the operating comfort of the operator. The output end of the first telescopic rod 6 is fixedly connected to a support plate 7. The upper surface of the support plate 7 is fixedly connected to a limiting block 8. The upper surface of the support plate 7 is threadedly connected to a threaded rod 9. The end of the threaded rod 9 away from the vertical plate 10 is fixedly connected to a disc, and it is more labor-saving to rotate the threaded rod 9. The lower surface of the cross block 5 is fixedly connected to the operating table 1. One end of the threaded rod 9 is fixedly connected to the vertical plate 10. The side surface of the vertical plate 10 is fixedly connected to the second telescopic rod 11. The output end of the second telescopic rod 11 is fixedly connected to a pressing plate 12. The pressing plate 12 can support the crankshaft to make it more secure. The lower surface of the operating table 1 is fixedly connected to a leg, and the side surface of the support plate 7 is fixedly connected to a limiting plate 13.

[0024] The upper surface of the operating table 1 is fixedly connected with a cleaning frame 15, the lower surface of the cleaning frame 15 is fixedly connected with a motor 14, the side surface of the limit plate 13 is movably connected with the vertical plate 10, the motor 14 is electrically connected with an external power supply, the motor 14 rotates to rotate the support frame 17 and the timing gear 21 above, and continuously contacts the upper bristles 20 and the lower bristles 18, so that the surface of the removed timing gear 21 is cleaned, the output end of the motor 14 is fixedly connected with a rotating shaft 16, the side surface of the rotating shaft 16 is fixedly connected with the supporting frame 17, and the side surface of the rotating shaft 16 is connected to the cleaning frame 1 The support frame 17 is rotatably connected to the inner side wall of the support frame 17, one end of the spring is fixedly connected to an L-shaped clamping rod, the upper surface of the support frame 17 is movably connected to a timing gear 21, the lower bristles 18 are fixedly connected to the bottom inner wall of the cleaning frame 15, the side surface of the L-shaped clamping rod is movably connected to the timing gear 21, the side surface of the lower bristles 18 is movably connected to the timing gear 21, the upper surface of the cleaning frame 15 is fixedly connected to a guide column 19, the side surface of the guide column 19 is rotatably connected to an upper bristle 20, and the side surface of the upper bristle 20 is movably connected to the timing gear 21.

[0025] Working principle: when disassembling and assembling the crankshaft and the timing gear, move a support plate 7 to place the crankshaft above the two support plates 7 and make the support plate 7 located at a position where the crankshaft can be clamped, rotate the threaded rod 9 to move the vertical plate 10 up and down, adjust the height of the pressure plate 12 to the upper middle position of the crankshaft, start the second telescopic rod 11 to push the pressure plate 12 out, the pressure plate 12 and the limit block 8 clamp the crankshaft, start the first telescopic rod 6 to raise or lower the height of the crankshaft to suit the height of the operator, then remove the timing gear 21 and place it on the support frame 17 in the cleaning frame 15, start the motor 14 to rotate the timing gear 21, and the upper bristles 20 and the lower bristles 18 cooperate with the internal cleaning fluid to clean the surface.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An engine crankshaft timing gear disassembly tool, characterized in that: include: An operating table (1), wherein an installation groove (2) is provided on the upper surface of the operating table (1), a guide shaft (3) is fixedly connected to the inner side wall of the installation groove (2), a sleeve (4) is movably connected to the side surface of the guide shaft (3), a cross block (5) is fixedly connected to the upper surface of the sleeve (4), a first telescopic rod (6) is fixedly connected to the upper surface of the cross block (5), an output end of the first telescopic rod (6) is fixedly connected to a support plate (7), a limit block (8) is fixedly connected to the upper surface of the support plate (7), a threaded rod (9) is threadedly connected to the upper surface of the support plate (7), one end of the threaded rod (9) is fixedly connected to a vertical plate (10), a second telescopic rod (11) is fixedly connected to the side surface of the vertical plate (10), and a pressing plate (12) is fixedly connected to the output end of the second telescopic rod (11); The upper surface of the operating table (1) is fixedly connected to a cleaning frame (15), the lower surface of the cleaning frame (15) is fixedly connected to a motor (14), the output end of the motor (14) is fixedly connected to a rotating shaft (16), the side surface of the rotating shaft (16) is fixedly connected to a supporting frame (17), the upper surface of the supporting frame (17) is movably connected to a timing gear (21), the bottom inner wall of the cleaning frame (15) is fixedly connected to lower bristles (18), the upper surface of the cleaning frame (15) is fixedly connected to a guide column (19), and the side surface of the guide column (19) is rotatably connected to upper bristles (20).

2. The engine crankshaft timing gear disassembly tool according to claim 1, characterized in that: The side surface of the sleeve (4) is movably connected to the operating table (1), and the lower surface of the transverse block (5) is movably connected to the operating table (1).

3. The engine crankshaft timing gear disassembly tool according to claim 1, characterized in that: One end of the threaded rod (9) away from the vertical plate (10) is fixedly connected to a circular disc, and the lower surface of the horizontal block (5) is fixedly connected to the operating table (1).

4. The engine crankshaft timing gear disassembly tool according to claim 1, characterized in that: The lower surface of the operating table (1) is fixedly connected to a support leg, and the side surface of the support plate (7) is fixedly connected to a limit plate (13).

5. The engine crankshaft timing gear disassembly tool according to claim 4, characterized in that: The side surface of the limiting plate (13) is movably connected to the vertical plate (10), and the motor (14) is electrically connected to an external power source.

6. The engine crankshaft timing gear disassembly tool according to claim 1, characterized in that: The side surface of the rotating shaft (16) is rotatably connected to the cleaning frame (15), and a spring is fixedly connected to the inner side wall of the supporting frame (17), and one end of the spring is fixedly connected to an L-shaped clamping rod.

7. The engine crankshaft timing gear disassembly tool according to claim 6, characterized in that: The side surface of the L-shaped clamping rod is movably connected to the timing gear (21), and the side surface of the lower brush bristles (18) is movably connected to the timing gear (21).

8. The engine crankshaft timing gear disassembly tool according to claim 1, characterized in that: The side surface of the upper bristle (20) is movably connected to the timing gear (21).

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