Rapid disassembling tool for bearing at rear end of crankshaft

Abstract

The utility model discloses a crankshaft rear end bearing quick disassembling tool which comprises a rapping rod and two locking pieces, a stud is arranged at the front end of the rapping rod, an adapter is connected to the bolt in a threaded mode, a connecting screw is fixedly arranged on the adapter and used for connecting every two locking pieces in a threaded mode, and the two locking pieces are respectively in an arc shape. The inner surfaces of the locking pieces are provided with inner threads matched with the threads on the connecting screw rod, the outer edge of one end of each locking piece is provided with a protruding step face, the two locking pieces are used for being clamped on the inner side surface of a bearing at the rear end of the crankshaft in a matched mode, and the protruding step faces are correspondingly clamped in the annular notches. The disassembling device is specially used for rapidly disassembling the crankshaft rear-end bearing, realizes nondestructive disassembling and recycling of the crankshaft rear-end bearing, is high in disassembling efficiency, and realizes revenue.

Description

Technical Field

[0001] This utility model relates to the field of engine disassembly tooling technology, and in particular to a quick disassembly tooling for the rear crankshaft bearing. Background Technology

[0002] Bearings are essential components in the machinery industry, widely used in automobiles, home appliances, construction machinery, medical devices, and other sectors. Their primary function is to support rotating mechanical parts, reduce the coefficient of friction during movement, and ensure rotational accuracy. Based on the frictional properties of the moving parts, bearings can be classified into sliding bearings and rolling bearings. In automotive engines, crankshaft sliding bearings are primarily used, while rolling bearings are less frequently used and researched in engine applications. Rolling bearings are used at the connection between the engine crankshaft and the transmission.

[0003] like Figure 1 As shown, the rear end of the engine crankshaft 1 is connected to the bearing via an interference fit, as... Figure 2 As shown, the bearing includes a metal bushing 2 and internal rollers 3, with an annular groove 4 between the internal rollers and the outlet of the metal bushing. Because the bearing is interference-fitted to the rear end of the crankshaft, it is difficult to disassemble using conventional methods. During the recycling process, the rear end bearing of the crankshaft is often damaged during disassembly, resulting in losses during component recycling. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model designs a quick disassembly tool for the crankshaft rear bearing.

[0005] The present invention adopts the following technical solution:

[0006] A quick disassembly tool for a crankshaft rear bearing includes a vibrating bar and two locking plates. The vibrating bar has a stud at its front end, and an adapter is threaded onto the stud. A connecting screw is fixedly mounted on the adapter. The connecting screw is used to thread-connect the two locking plates. The two locking plates are arc-shaped, and the inner surface of the locking plates has internal threads that mate with the threads on the connecting screw. One end of the locking plate has a raised stepped surface on its outer edge. The two locking plates are used to engage with the inner surface of the crankshaft rear bearing, and the raised stepped surfaces are engaged in an annular groove.

[0007] Preferably, the vibrating rod includes a vibrating rod and a vibrating hammer, with a stud at the front end of the vibrating rod and a vibrating part for striking at the rear end.

[0008] Preferably, the rear end of the vibrating section is provided with a handheld part.

[0009] Preferably, the two locking plates are identical in shape and symmetrically distributed to engage with the inner surface of the crankshaft rear bearing.

[0010] Preferably, the arc radius of the two locking plates is 1 / 3 of an arc.

[0011] The beneficial effects of this utility model are: This utility model designs a quick disassembly tool for crankshaft rear end bearings, which is specially designed for the quick disassembly of crankshaft rear end bearings, realizing non-destructive disassembly and recycling of crankshaft rear end bearings, with high disassembly efficiency and revenue generation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an existing crankshaft rear bearing connection structure.

[0013] Figure 2 This is a schematic diagram of a structure of an existing crankshaft rear end bearing;

[0014] Figure 3 This is a schematic diagram of the structure of this utility model;

[0015] Figure 4 This is a schematic diagram of one structure of the locking piece in this utility model;

[0016] Figure 5 This is a structural schematic diagram of the present invention in use;

[0017] In the diagram: 1. Engine crankshaft, 2. Metal bushing, 3. Internal roller, 4. Annular groove, 5. Vibrating bar, 6. Stud, 7. Vibrating hammer, 8. Hand handle, 9. Adapter, 10. Locking plate, 11. Connecting screw, 12. Vibrating rod. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0019] Example: Figure 3 and Figure 4 As shown, a quick disassembly tool for a crankshaft rear bearing includes a vibrating rod 12 and two locking plates 10. A stud 6 is provided at the front end of the vibrating rod, and an adapter 9 is threaded onto the bolt. A connecting screw 11 is fixedly provided on the adapter. The connecting screw is used to thread-connect the two locking plates. The two locking plates are arc-shaped, and the inner surface of the locking plates is provided with internal threads that mate with the threads on the connecting screw. One end of the locking plate has a raised stepped surface on its outer edge. The two locking plates are used to engage with the inner surface of the crankshaft rear bearing, and the raised stepped surfaces are engaged in the annular grooves.

[0020] The vibrating rod includes a vibrating rod 5 and a vibrating hammer 7. The vibrating rod has a stud at the front end and a vibrating part for striking at the rear end.

[0021] A handheld part 8 is provided at the rear end of the rapping section. Two locking plates are identical in shape and symmetrically distributed to engage with the inner surface of the crankshaft rear bearing. The arc radius of the two locking plates is 1 / 3 of a circle.

[0022] like Figure 5 As shown, when using this crankshaft rear bearing quick disassembly fixture, firstly, two locking plates are symmetrically placed and engaged on the inner surface of the crankshaft rear bearing, with the raised stepped surfaces correspondingly engaged in the annular groove. Then, a corresponding adapter is selected and connected to the vibrating bar, and the connecting screw of the adapter is screwed into the crankshaft rear bearing. At this time, the two locking plates are locked onto the inner surface of the crankshaft rear bearing by interference fit. Afterwards, the crankshaft rear bearing can be gradually removed without damage by repeatedly striking the vibrating hammer, achieving non-destructive disassembly and recycling of the crankshaft rear bearing. This method has high disassembly efficiency and generates revenue.

[0023] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A quick disassembly tooling for the rear bearing of a crankshaft, characterized in that, It includes a vibrating rod and two locking plates. The vibrating rod has a stud at the front end, and an adapter is threaded onto the bolt. A connecting screw is fixed on the adapter. The connecting screw is used to thread the two locking plates. The two locking plates are arc-shaped. The inner surface of the locking plates is provided with internal threads that mate with the threads on the connecting screw. One end of the locking plate has a raised stepped surface on its outer edge. The two locking plates are used to engage with the inner surface of the crankshaft rear bearing. The raised stepped surface is engaged with the annular groove.

2. The quick disassembly fixture for the rear bearing of a crankshaft according to claim 1, characterized in that, The vibrating rod includes a vibrating rod and a vibrating hammer. The vibrating rod has a stud at the front end and a vibrating part for striking at the rear end.

3. The quick disassembly fixture for the rear bearing of a crankshaft according to claim 2, characterized in that, The vibrating part is provided with a handheld part at the rear end.

4. The quick disassembly fixture for the rear bearing of a crankshaft according to claim 1, characterized in that, The two locking plates are identical in shape and symmetrically distributed to engage with the inner surface of the crankshaft rear bearing.

5. The quick disassembly fixture for the rear bearing of a crankshaft according to claim 1, characterized in that, The arc radius of the two locking plates is 1 / 3 of an arc.

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