Dismounting tool for the planet gear of a torsion-limiting damper

Abstract

The utility model discloses a kind of dismounting tool of torsional vibration damper planetary gear, including planet carrier assembly, gear ring and cover plate, the planet carrier assembly is installed in gear ring, cover plate is arranged on both sides of gear ring, positioning bolt passes through the bolt hole corresponding to cover plate and gear ring outer circle, two cover plates and gear ring are fixed by nut.The utility model has the advantages that limit torsional vibration damper is slipped by manpower, the crankshaft mounting hole on integrated limit torsional vibration damper and crankshaft bolt position are corrected, so that the crankshaft bolt is disassembled, reduce the operation difficulty when dismounting.

Description

Technical Field

[0001] This utility model relates to the field of disassembly technology of integrated torsion damper after vehicle installation, and particularly to a disassembly tooling for planetary gears of torsion damper. Background Technology

[0002] In the past, torsion dampers generally adopted a split structure, that is, the torsion damper and the flywheel were two assemblies. The flywheel was first installed on the crankshaft, and then the torsion damper was installed on the flywheel.

[0003] Currently, integrated torsion dampers, because the torsion damper and flywheel are integrated into one assembly, cause the crankshaft mounting holes and crankshaft bolts on the integrated torsion damper to deviate after torsion slippage occurs during vehicle installation, making it difficult to disassemble the crankshaft bolts. This is an area that this application needs to focus on improving. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a disassembly tool for the planetary gear of a torsion damper, so as to reduce the difficulty of disassembly.

[0005] To solve the above technical problems, this utility model provides a disassembly fixture for a planetary gear of a torsion damper, including a planetary carrier assembly, a gear ring, and a cover plate. The planetary carrier assembly is installed inside the gear ring, and cover plates are arranged on both sides of the gear ring. Positioning bolts pass through the bolt holes corresponding to the outer circles of the cover plates and the gear ring, and the two cover plates and the gear ring are fixed by at least one nut.

[0006] The planetary carrier assembly includes a sun gear, a planetary carrier, planet gears, and stepped bolts. The sun gear is installed in the center hole of the planetary carrier. The inner ring of the planetary carrier has multiple bolt holes for installing and removing bolts, and the outer ring of the planetary carrier has multiple bolt holes for installing stepped bolts. The stepped bolts are installed in these bolt holes, and the inner holes of the planet gears are installed in the middle step of the stepped bolts.

[0007] A retaining circlip is installed in the retaining circlip groove of the sun gear. The retaining circlip axially positions the sun gear to prevent it from falling off. The sun gear is provided with an internal hexagonal hole.

[0008] The number of planetary gears is the same as the number of stepped bolts.

[0009] The planetary carrier is provided with a first indicator arrow, a central hole, and a first indicator hole.

[0010] The disassembly bolts are equipped with bolt heads.

[0011] The positioning bolt is equipped with a positioning screw.

[0012] The working principle of the planetary gear disassembly fixture is as follows: multiple positioning screws on the outer ring of the disassembly fixture are installed in multiple positioning holes on the outer ring of the integrated torsion damper. At the same time, the first indicator hole on the planetary carrier is aligned with the first indicator hole on the integrated torsion damper. Multiple bolt heads on the inner ring of the disassembly fixture are installed in multiple crankshaft bolt holes on the inner ring of the integrated torsion damper. An Allen wrench is installed in the Allen hole of the sun gear. The Allen wrench is turned to align the first indicator arrow on the planetary carrier with the first indicator arrow on the integrated torsion damper. The crankshaft bolt hole on the integrated torsion damper is aligned with the crankshaft bolt position. Then, the crankshaft bolt is unscrewed and removed, thus disassembling the integrated torsion damper from the crankshaft.

[0013] The beneficial effects of this utility model are as follows: by utilizing the large gear ratio of the planetary gear structure and using the planetary gear disassembly tooling, the torque limiter can be easily moved manually to correct the position of the crankshaft mounting hole and crankshaft bolt on the integrated torque limiter damper, thereby removing the crankshaft bolt and reducing the difficulty of disassembly. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of a specific embodiment of the present utility model; Figure 2 This is a schematic diagram of the AA section of a specific embodiment of the present invention; Figure 3 This is an exploded view of a specific embodiment of the present utility model; Figure 4 This is an isometric view of a specific embodiment of the present utility model; Figure 5 This is a schematic diagram of the integrated torsion damper to be disassembled according to this utility model. Figure 6 This is an assembly diagram of the disassembly integrated torsion damper of this utility model; Explanation of the labels in the diagram 1-Nut; 2-Remove bolts; 201- Bolt head; 3-Cover plate; 4-Planet Carrier; 401 - Indicator arrow A; 402 - Center hole; 403 - Indicator Hole C; 5-Gear ring; 6-Snap ring; 7-Sun Wheel; 701 - Internal hexagon socket; 702 - Snap ring groove; 8-Planetary gear; 9-Stepped bolt; 10 - Locating bolt; 1001 - Locating screw; 11-Integrated torsional damper; 1101 - Positioning hole; 1102 - Indicator arrow B; 1103 - Indicator hole D; 1104 - Crankshaft bolt hole. Detailed Implementation

[0015] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Figure 1 A schematic diagram of a specific embodiment of the present invention is shown; Figure 2 A schematic diagram of the AA section of a specific embodiment of the present invention is shown; Figure 3 An exploded view of a specific embodiment of the present invention is shown; Figure 4 An isometric view of a specific embodiment of the present invention is shown; Figure 5 A schematic diagram of the integrated torsion damper to be disassembled according to the present invention is shown; Figure 6 A schematic diagram of the assembly of the disassembly integrated torsion damper of the present invention is shown.

[0017] like Figures 1-4 As shown, this utility model provides a disassembly fixture for a planetary gear of a torsion damper, including a nut 1, a disassembly bolt 2, a cover plate 3, a planetary carrier 4, a gear ring 5, a snap ring 6, a sun gear 7, planetary gears 8, a stepped bolt 9, and a positioning bolt 10.

[0018] The disassembly bolt 2 is provided with a bolt head 201.

[0019] The planetary carrier 4 is equipped with an indicator arrow A401, a central hole 402, and an indicator hole C403.

[0020] The sun gear 7 is provided with an internal hexagonal hole 701 and a retaining ring groove 702.

[0021] The positioning bolt 10 is provided with a positioning screw 1001.

[0022] The sun gear 7 is installed in the center hole 402 on the planet carrier 4, and the retaining circlip 6 is installed in the retaining circlip groove 702 of the sun gear 7. Multiple bolt holes for installing and removing bolts 2 are arranged on the inner ring of the planet carrier 4, and the removing bolts 2 are installed in these bolt holes. Multiple bolt holes for installing stepped bolts 9 are arranged on the outer ring of the planet carrier 4, and the stepped bolts 9 are installed in these bolt holes. The inner holes of the planet gears 8 are installed within the middle step of the stepped bolts 9, and the number of planet gears 8 is the same as the number of stepped bolts 9. This forms the planet carrier assembly.

[0023] The planetary carrier assembly is installed inside the gear ring 5. Two cover plates 3 are respectively arranged on both sides of the gear ring 5. Multiple bolt holes are arranged on the outer circle of the cover plates 3 and the gear ring 5. The bolt holes are aligned, and the positioning bolts 10 pass through the bolt holes respectively. The two cover plates 3 and the gear ring 5 are fastened by two nuts 1, thus forming a disassembly tooling for the planetary gear.

[0024] The multiple nuts 1 serve to adjust the dimensions, regulating the axial position between the disassembly fixture and the integrated torsion damper 11. Each positioning bolt 10 is fitted with one or more nuts 1; the more nuts 1 installed, the thicker the stacked nuts 1 become, thus adjusting the dimensions. The illustration shows two nuts 1 on each positioning bolt 10. The disassembly fixture is adapted to integrated torsion dampers 11 with different axial dimensions.

[0025] like Figure 5 As shown, the integrated torsion damper 11 has multiple positioning holes 1101, an indicator arrow B1102, an indicator hole D1103, and multiple crankshaft bolt holes 1104.

[0026] like Figure 6 As shown, during the disassembly process of the integrated torsion damper 11 after it is installed in the vehicle, multiple positioning screws 1001 of the outer ring of the planetary gear disassembly tool are installed in multiple positioning holes 1101 of the outer ring of the integrated torsion damper. Align the indicator hole C403 on the planetary carrier 4 with the indicator hole D1103 on the integrated torsion damper 11. Install multiple bolt heads 201 of the inner ring of the planetary gear disassembly tool into multiple crankshaft bolt holes 1104 of the inner ring of the integrated torsion damper. Install an Allen wrench into the Allen hole 701 of the sun gear 7. Turn the Allen wrench to align the indicator arrow A on the planetary carrier 4 with the indicator arrow B1102 on the integrated torsion damper 11. Align the crankshaft bolt holes 1104 on the integrated torsion damper 11 with the crankshaft bolts. Then unscrew the crankshaft bolts and remove the integrated torsion damper 11 from the crankshaft.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A disassembly fixture for a planetary gear of a torsion damper, characterized in that: The device includes a planetary carrier assembly, a gear ring, and cover plates. The planetary carrier assembly is installed inside the gear ring, and cover plates are arranged on both sides of the gear ring. Positioning bolts pass through bolt holes corresponding to the outer circles of the cover plates and the gear ring, and the two cover plates and the gear ring are fixed by at least one nut.

2. The disassembly fixture for the planetary gear of the torsion damper according to claim 1, characterized in that: The planetary carrier assembly includes a sun gear, a planetary carrier, planet gears, and stepped bolts. The sun gear is installed in the center hole of the planetary carrier. The inner ring of the planetary carrier has multiple bolt holes for installing and removing bolts, and the outer ring of the planetary carrier has multiple bolt holes for installing stepped bolts. The stepped bolts are installed in these bolt holes, and the inner holes of the planet gears are installed in the middle step of the stepped bolts.

3. The disassembly fixture for the planetary gear of the torsion damper according to claim 2, characterized in that: A retaining circlip is installed in the retaining circlip groove of the sun gear, and an internal hexagonal hole is arranged on the sun gear.

4. The disassembly fixture for the planetary gear of the torsion damper according to claim 2, characterized in that: The number of planetary gears is the same as the number of stepped bolts.

5. The disassembly fixture for the planetary gear of the torsion damper according to claim 2, characterized in that: The planetary carrier is provided with a first indicator arrow, a central hole, and a first indicator hole.

6. The disassembly fixture for the planetary gear of the torsion damper according to claim 2, characterized in that: The disassembly bolts are equipped with bolt heads.

7. The disassembly fixture for the planetary gear of the torsion damper according to claim 1, characterized in that: The positioning bolt is equipped with a positioning screw.

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