Self-lubricating crankshaft

Abstract

A self-lubricating crankshaft belongs to the technical field of crankshaft self-lubrication for crankshaft manufacturing and is characterized by comprising a crankshaft body and a spindle oil hole formed in the circle center of the surface of the left side of the crankshaft body, and a crankshaft inner cavity is formed in the circle center of the surface of the right side of the spindle oil hole. A plurality of oil outlet holes are evenly distributed in the periphery of the inner side surface of the crankshaft inner cavity, sealing devices are inserted in the circle centers of the outer side surfaces of the oil outlet holes, a balance end disc is connected to the circle center of the right side surface of the crankshaft body, and an eccentric shaft body is connected to the edge of the right side surface of the balance end disc; when the lubricating oil is injected, the lubricating oil can be prevented from being discharged from the oil hole, and when the crankshaft is rotated, the lubricating oil on the centrifugal turntable can be scattered and rapidly coated on the crankshaft.

Description

Technical Field

[0001] This utility model belongs to the technical field of crankshaft self-lubricating devices for crankshaft manufacturing, and specifically relates to a self-lubricating crankshaft. Background Technology

[0002] Existing patent: Patent No. CN215409079U, entitled "A self-lubricating crankshaft with oil guide groove to prevent oil impact". When the crankshaft rotates, the lubricating oil is almost blocked by the oil guide groove and oil hole due to the anti-impact structure. When the lubricating oil is discharged, it takes a long time to coat the crankshaft with lubricating oil, which is inconvenient for operators. Utility Model Content

[0003] The purpose of this invention is to prevent lubricating oil from leaking out of the oil hole when the lubricating oil is applied to the inner cavity, and to prevent lubricating oil from leaking out of the oil hole when the lubricating oil is injected. Furthermore, it allows the lubricating oil from the centrifugal turntable to be dispersed and quickly coated onto the crankshaft when the crankshaft is rotated, facilitating operation. The technical solution is as follows:

[0004] A self-lubricating crankshaft, characterized in that: it includes a crankshaft body 1 and a main shaft oil hole 2 disposed at the center of the left side surface of the crankshaft body 1; a crankshaft inner cavity 3 is provided at the center of the right side surface of the main shaft oil hole 2; a plurality of oil outlet holes 4 are evenly distributed around the inner side surface of the crankshaft inner cavity 3; a sealing device 5 is inserted at the center of the outer surface of the oil outlet holes 4; a balance end plate 6 is connected to the center of the right side surface of the crankshaft body 1; an eccentric shaft 7 is connected to the edge of the right side surface of the balance end plate 6; and the oil outlet holes 4 include... The upper hole 4-1, insertion hole 4-2, slot 4-3, and rubber post 4-4 are provided. The insertion hole 4-2 is located at the center of the lower inner surface of the upper hole 4-1. Slots 4-3 are symmetrically arranged on the lower inner surface of the upper hole 4-1. A rubber post 4-4 is connected to the center of the lower inner surface of each slot 4-3. The interior of the upper hole 4-1 and the interior of the insertion hole 4-2 are interconnected with the interior of the crankshaft inner cavity 3. The rubber post 4-4 is made of high-temperature resistant rubber. The sealing device 5 includes a cover plate 5-1, a plug 5-2, an insertion post 5-3, and... A spring 5-4 is attached to the lower surface of the cover plate 5-1, where a plug 5-2 is connected to the center. Insert pins 5-3 are symmetrically connected to the left and right edges of the lower surface of the cover plate 5-1. A spring 5-4 is connected to the center of the lower surface of each insert pin 5-3. The cover plate 5-1 is cylindrical, and the plug pin 5-2 is conical. The cover plate 5-1 is inserted into the upper hole 4-1, the plug pin 5-2 is inserted into the insertion hole 4-2, and the insert pin 5-3 is inserted into the slot 4-3. The lower end of the spring 5-4 is connected to the... On the lower surface of slot 4-3, the eccentric shaft 7 includes a short shaft 7-1, a cavity 7-2, an oblique hole 7-3, and a baffle 7-4. The cavity 7-2 is located at the center of the left side surface of the short shaft 7-1. Several oblique holes 7-3 are evenly distributed around the right side surface of the inner side surface of the cavity 7-2. The baffle 7-4 is connected to the right edge of the oblique hole 7-3. The cavity 7-2 is connected to the inner cavity of the crankshaft 3. The baffle 7-4 is arc-shaped. The short shaft 7-1 is connected to the right side surface of the balance end plate 6.

[0005] The beneficial effects of this utility model are as follows: when the operator applies lubricating oil to the inner cavity, it can prevent the lubricating oil from being discharged from the oil hole, and when the lubricating oil is injected, it can prevent the lubricating oil from being discharged from the oil hole. When the crankshaft is rotated, the lubricating oil of the centrifugal turntable can be dispersed and quickly coated on the crankshaft, making it convenient for the operator to operate and use. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the oil outlet hole 4 of this utility model;

[0008] Figure 3This is a schematic diagram of the sealing device 5 of this utility model;

[0009] Figure 4 This is a schematic diagram of the eccentric shaft 7 structure of this utility model;

[0010] In the diagram: 1. Crankshaft body; 2. Main shaft oil hole; 3. Crankshaft inner cavity; 4. Oil outlet hole; 5. Sealing device; 6. Balance end plate; 7. Eccentric shaft body; 4-1. Upper hole; 4-2. Insertion hole; 4-3. Slot; 4-4. Glue post; 5-1. Cover plate; 5-2. Plug post; 5-3. Spring; 5-4. Short shaft; 7-1. Cavity; 7-2. Inclined hole; 7-3. Baffle; 7-4. Detailed Implementation

[0011] Reference Figures 1-4 The self-lubricating crankshaft is characterized by comprising a crankshaft body 1 and a main shaft oil hole 2 disposed at the center of the left side surface of the crankshaft body 1. A crankshaft inner cavity 3 is provided at the center of the right side surface of the main shaft oil hole 2. A plurality of oil outlet holes 4 are evenly distributed around the inner side surface of the crankshaft inner cavity 3. A sealing device 5 is inserted at the center of the outer side surface of the oil outlet holes 4. A balance end plate 6 is connected to the center of the right side surface of the crankshaft body 1. An eccentric shaft 7 is connected to the edge of the right side surface of the balance end plate 6.

[0012] During use, the operator injects lubricating oil into the crankshaft inner cavity 3 through the main shaft oil hole 2. At the same time, because the oil outlet hole 4 is equipped with a sealing device 5 on the outside, the lubricating oil is prevented from flowing out during the oil injection. Meanwhile, the lubricating oil is injected into the eccentric shaft body 7 through the balance end plate 6. When the crankshaft body 1 rotates, the centrifugal force causes the lubricating oil to flow outward. At the same time, the centrifugal force creates a gap between the sealing device 5 and the oil outlet hole 4, and the lubricating oil flows out through the gap and drips onto the outer surface of the crankshaft body 1. At the same time, the surface of the eccentric shaft body 7 is also sprayed with lubricating oil.

[0013] Furthermore, the oil outlet hole 4 includes an upper hole 4-1, an insertion hole 4-2, a slot 4-3, and a rubber post 4-4. The insertion hole 4-2 is provided at the center of the lower inner surface of the upper hole 4-1. The slots 4-3 are symmetrically provided on the lower inner surface of the upper hole 4-1. A rubber post 4-4 is connected to the center of the lower inner surface of each slot 4-3. The interior of the upper hole 4-1 and the interior of the insertion hole 4-2 are interconnected with the interior of the crankshaft cavity 3. The rubber post 4-4 is made of high-temperature resistant rubber material.

[0014] When in use, the crankshaft body 1 rotates and the centrifugal force disperses the lubricating oil onto the side surface of the crankshaft inner cavity 2. At the same time, the lubricating oil flows out through the insertion hole 4-2 and the upper hole 4-1 and is sprayed onto the outer surface of the crankshaft body 1.

[0015] Furthermore, the sealing device 5 includes a cover plate 5-1, a plug 5-2, an insert 5-3, and a spring 5-4. The plug 5-2 is connected to the center of the lower surface of the cover plate 5-1, and the insert 5-3 is symmetrically connected to the left and right edges of the lower surface of the cover plate 5-1. A spring 5-4 is connected to the center of the lower surface of each insert 5-3. The cover plate 5-1 is cylindrical, and the plug 5-2 is conical. The cover plate 5-1 is inserted into the upper hole 4-1, the plug 5-2 is inserted into the insertion hole 4-2, and the insert 5-3 is inserted into the slot 4-3. The lower end of the spring 5-4 is connected to the lower surface of the slot 4-3.

[0016] When the crankshaft body 1 rotates, centrifugal force is generated, causing the cover plate 5-1 to move outward, creating a gap between the cover plate 5-1 and the upper hole 4-1. At the same time, the plunger 5-2 separates from the insertion hole 4-2, and the lubricating oil flows out through the insertion hole 4-2 and impacts the plunger 5-2. Since the plunger 5-2 is conical in shape, it can disperse the lubricating oil and spray it in all directions. Finally, it is sprayed out through the gap between the cover plate 5-1 and the upper hole 4-1 and the gap between the plunger 5-2 and the insertion hole 4-2 and sprayed onto the surface of the crankshaft body 1.

[0017] When the crankshaft body 1 stops rotating, the spring 5-4 pulls the insert 5-3 to insert the insert 5-3 into the slot 4-3, and at the same time inserts the plug 5-2 into the insertion hole 4-2. Simultaneously, the cover plate 5-1 is inserted into the upper hole 4-1 to seal the upper hole 4-1 and the insertion hole 4-2.

[0018] Furthermore, the eccentric shaft 7 includes a short shaft 7-1, a cavity 7-2, oblique holes 7-3, and a baffle 7-4. The cavity 7-2 is located at the center of the left side surface of the short shaft 7-1. Several oblique holes 7-3 are evenly distributed around the right side surface of the inner side surface of the cavity 7-2. The baffle 7-4 is connected to the right edge of the oblique holes 7-3. The cavity 7-2 is connected to the inner cavity of the crankshaft 3. The baffle 7-4 is arc-shaped. The short shaft 7-1 is connected to the right side surface of the balance end plate 6.

[0019] When in use, the crankshaft body 1 rotates, which drives the short shaft 7-1 to rotate through the balance end plate 6. At the same time, the lubricating oil in the cavity 7-1 generates centrifugal force and sprays the lubricating oil out through the inclined hole 7-3. Meanwhile, the lubricating oil is sprayed onto the outer surface of the short shaft 7-1 through the arc-shaped baffle 7-4.

[0020] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A self-lubricating crankshaft characterized by: The utility model provides a crankshaft body (1) and the main shaft oil hole (2) of setting in the left side surface center of crankshaft body (1), the crankshaft inner chamber (3) of being equipped with in the right side surface center of main shaft oil hole (2), the average distribution of being equipped with a plurality of oil outlet oil hole (4) in the inside side surface four quarters of crankshaft inner chamber (3), the outside surface center of oil outlet oil hole (4) inserts sealing device (5), the balance end disc (6) of being connected with in the right side surface center of crankshaft body (1), the eccentric shaft body (7) of being connected with in the right side surface edge of balance end disc (6).

2. The self-lubricating crankshaft of claim 1, wherein: The utility model discloses a crankshaft body (1) and the main shaft oil hole (2) of setting in the left side surface center of crankshaft body (1), the crankshaft inner chamber (3) of being equipped with in the right side surface center of main shaft oil hole (2), the average distribution of being equipped with a plurality of oil outlet oil hole (4) in the inside side surface four quarters of crankshaft inner chamber (3), the outside surface center of oil outlet oil hole (4) inserts sealing device (5), the balance end disc (6) of being connected with in the right side surface center of crankshaft body (1), the eccentric shaft body (7) of being connected with in the right side surface edge of balance end disc (6).

3. The self-lubricating crankshaft of claim 2, wherein: The utility model discloses a crankshaft body (1) and the main shaft oil hole (2) of setting in the left side surface center of crankshaft body (1), the crankshaft inner chamber (3) of being equipped with in the right side surface center of main shaft oil hole (2), the average distribution of being equipped with a plurality of oil outlet oil hole (4) in the inside side surface four quarters of crankshaft inner chamber (3), the outside surface center of oil outlet oil hole (4) inserts sealing device (5), the balance end disc (6) of being connected with in the right side surface center of crankshaft body (1), the eccentric shaft body (7) of being connected with in the right side surface edge of balance end disc (6).

4. The self-lubricating crankshaft of claim 1, wherein: The utility model discloses a crankshaft body (1) and the main shaft oil hole (2) of setting in the left side surface center of crankshaft body (1), the crankshaft inner chamber (3) of being equipped with in the right side surface center of main shaft oil hole (2), the average distribution of being equipped with a plurality of oil outlet oil hole (4) in the inside side surface four quarters of crankshaft inner chamber (3), the outside surface center of oil outlet oil hole (4) inserts sealing device (5), the balance end disc (6) of being connected with in the right side surface center of crankshaft body (1), the eccentric shaft body (7) of being connected with in the right side surface edge of balance end disc (6).

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