Wear-resistant self-lubricating engine crankshaft

Abstract

The utility model discloses an anti-wear self-lubricating engine crankshaft, which relates to the technical field of engine crankshafts, and comprises shaft bodies, connecting rod journals, crank assemblies, main journals, connecting grooves and lubricating assemblies, the connecting rod journals are arranged between two opposite shaft bodies, the crank assemblies are arranged at the end parts of the connecting rod journals, the main journals are arranged between the crank assemblies and the shaft bodies, and the connecting grooves are formed in the connecting rod journals. The connecting groove is formed in the middle of the main journal, the crank assembly and the connecting rod journal, and the multiple lubricating assemblies are installed in the middle of the connecting rod journal and the main journal respectively. Through the arrangement mode that the connecting groove is matched with the lubricating assembly, lubricating oil can be stably stored in the crankshaft and slowly released through the lubricating assembly, abrasion is reduced, waste of the lubricating oil can be reduced through the slow release effect of the sponge column, the operation cost of an engine is reduced, pollution caused by splashing of the lubricating oil is reduced, and the service life of the engine is prolonged. And moreover, the addition efficiency of the lubricating oil is not influenced by dismounting and mounting the plug.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine crankshaft, especially relates to a self-lubricating engine crankshaft of anti-abrasion. BACKGROUND

[0002] The crankshaft is the most important component in the engine. It bears the force from the connecting rod and converts it into torque to drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of rotating mass, periodically changing gas inertia force and reciprocating inertia force, so that it bears bending and torsional load. In the design of the engine crankshaft, the lubrication system usually relies on external oil pump forced oil supply or splash lubrication to ensure the lubrication effect between the crankshaft and the bearing.

[0003] However, when the crankshaft operates at high speed, the centrifugal force can cause uneven distribution of lubricating oil, especially in the key friction parts such as the connecting rod journal and the main journal, which can cause local lubrication deficiency, aggravate wear, and the traditional lubrication method has a lubricating oil inlet and outlet hole, and the lubricating oil is thrown out in large quantities during high-speed rotation, resulting in waste. If a small-diameter lubricating oil port is used, it will be difficult to add or replace the lubricating oil due to the inconvenience or low efficiency of lubricating oil addition. SUMMARY

[0004] The utility model discloses a self-lubricating engine crankshaft of anti-abrasion, which solves the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a self-lubricating engine crankshaft of anti-abrasion, comprising:

[0006] a shaft body;

[0007] a connecting rod journal arranged between the two shaft bodies;

[0008] a crank assembly installed at the end of the connecting rod journal;

[0009] a main journal installed between the crank assembly and the shaft body;

[0010] a connecting groove formed in the middle of the main journal, the crank assembly and the connecting rod journal, which is used for carrying lubricating oil;

[0011] a plurality of lubricating assemblies installed in the middle of the connecting rod journal and the main journal, which are used for feeding and discharging lubricating oil.

[0012] Preferably, the crank assembly comprises:

[0013] A gravity block is fixed between the main shaft neck and the connecting rod shaft neck;

[0014] A groove is arranged on both sides of the gravity block close to the main shaft neck;

[0015] An arc edge is arranged on the outer wall side of the gravity block.

[0016] Preferably, the lubricating assembly comprises:

[0017] A plurality of feeding holes are arranged in the middle part of the connecting rod shaft neck and the main shaft neck;

[0018] A plug is connected to the inner cavity of the feeding hole;

[0019] A sponge column is installed in the middle part of the plug.

[0020] Preferably, the inner cavities of the plurality of feeding holes are communicated with the inner cavity of the connecting groove, and the plug is used for partially plugging the inner cavity of the feeding hole.

[0021] Preferably, the feeding hole comprises:

[0022] A plurality of embedding grooves are arranged on the outer wall of the connecting rod shaft neck and the main shaft neck;

[0023] An oil feeding hole is arranged in the middle part of the inner cavity of the embedding groove, and the plug is arranged in the inner cavity of the oil feeding hole.

[0024] Preferably, the plug comprises:

[0025] An embedding plate is inserted and connected to the inner cavity of the embedding groove;

[0026] A rubber column is fixed in the middle part of the embedding plate;

[0027] A plurality of clamping rods are arranged in an annular array outside the rubber column;

[0028] An oil outlet hole is arranged in the middle part of the embedding plate and the rubber column.

[0029] Preferably, the embedding plate is in an arc structure matched with the outer wall of the connecting rod shaft neck and the outer wall of the main shaft neck, and the rubber column is connected to the inner cavity of the oil feeding hole.

[0030] Preferably, the top of the clamping rod is fixed to the bottom of the embedding plate, and the sponge column is fixed to the top of the oil outlet hole.

[0031] The technical effects and advantages of the present application are as follows:

[0032] The utility model discloses a set mode that is cooperated through connecting groove and lubricating assembly, and lubricating oil can be stored stably in the crankshaft and is released slowly through lubricating assembly, which ensures the continuous lubrication of the key friction parts of connecting rod journal and main journal, reduces the abrasion, the setting of rubber column and clamping rod can partially block the oil hole, and the rubber column is separated, the slow release of sponge column can reduce the waste of lubricating oil, reduce the operation cost of engine, and reduce the pollution caused by the splash of lubricating oil, reduce the waste of resources, and the dismounting of the plug does not affect the adding efficiency of lubricating oil. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the whole structure schematic diagram of the utility model Figure 1 .

[0034] Figure 2 It is the whole structure schematic diagram of the utility model Figure 2 .

[0035] Figure 3 It is the whole structure schematic diagram of the utility model.

[0036] Figure 4 It is the whole structure schematic diagram of the utility model Figure 2 A place local amplification structure schematic diagram.

[0037] Figure 5 It is the whole structure schematic diagram of the utility model rubber column place side surface section structure.

[0038] In the drawing: 1, shaft body;2, connecting rod journal;3, crank assembly;31, gravity block;32, recess;33, circular arc edge;4, main journal;5, connecting groove;6, lubricating assembly;61, feed hole;611, embedded groove;612, oil hole;62, plug;621, embedded plate;622, rubber column;623, clamping rod;624, oil outlet hole;63, sponge column. DETAILED DESCRIPTION

[0039] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0040] Embodiment one

[0041] The utility model provides a kind of crankshaft, which is characterized by comprising shaft body, connecting rod journal, crank assembly, main journal, connecting groove, lubricating assembly, feed hole, embedded groove, oil hole, plug, embedded plate, rubber column, clamping rod, oil outlet hole and sponge column. Figures 1-5The illustrated anti-wear self-lubricating engine crankshaft includes a shaft body 1, a connecting rod journal 2, a crank assembly 3, a main journal 4, a connecting groove 5 and a lubricating assembly 6. The connecting rod journal 2 is arranged between the two shaft bodies 1. The crank assembly 3 is installed at the end of the connecting rod journal 2. The main journal 4 is installed between the crank assembly 3 and the shaft body 1. The connecting groove 5 is provided in the middle of the main journal 4, the crank assembly 3 and the connecting rod journal 2. The connecting groove 5 is used for carrying lubricating oil. A plurality of lubricating assemblies 6 are respectively installed in the middle of the connecting rod journal 2 and the main journal 4. The lubricating assembly 6 is used for the feeding and discharging of lubricating oil.

[0042] The lubricating assembly 6 includes a feeding hole 61, a plug 62 and a sponge column 63. A plurality of feeding holes 61 are respectively provided in the middle of the connecting rod journal 2 and the main journal 4. The plug 62 is clamped in the inner cavity of the feeding hole 61. The sponge column 63 is installed in the middle of the plug 62. The inner cavities of the plurality of feeding holes 61 are communicated with the inner cavity of the connecting groove 5. The plug 62 is used for partially plugging the inner cavity of the feeding hole 61, so that the lubricating oil in the inner cavity of the connecting groove 5 can slowly flow out, thereby improving the lubricating performance of the connecting rod journal 2 and the main journal 4 and improving the anti-wear performance of the crankshaft.

[0043] Further, the feeding hole 61 includes an embedded groove 611 and an oil feeding hole 612. A plurality of embedded grooves 611 are respectively provided in the outer wall of the connecting rod journal 2 and the main journal 4. The oil feeding hole 612 is provided in the middle of the inner cavity of the embedded groove 611. The oil feeding hole 612 is communicated with the inner cavity of the connecting groove 5. The plug 62 is arranged in the inner cavity of the oil feeding hole 612. Through the oil feeding hole 612, it is convenient to inject lubricating oil into the inner cavity of the connecting groove 5.

[0044] Further, the plug 62 comprises an embedded plate 621, a rubber column 622, a plurality of clamping rods 623 and an oil outlet hole 624, the embedded plate 621 is in an arc structure matched with the outer wall of the connecting rod journal 2 and the outer wall of the main journal 4, the embedded plate 621 is inserted and clamped in the inner cavity of the embedded groove 611, the rubber column 622 is fixed in the middle part of the embedded plate 621, the rubber column 622 is connected with the inner cavity of the oil inlet hole 612 in a penetrating mode, the rubber column 622 is made of high-temperature-resistant elastic rubber, the outer wall of the rubber column 622 is closely attached to the inner wall of the oil inlet hole 612, the friction between the rubber column 622 and the oil inlet hole 612 is improved, the position of the embedded plate 621 is stable, the plurality of clamping rods 623 are arranged in an annular array outside the rubber column 622, the top of the clamping rod 623 is fixed to the bottom of the embedded plate 621, the bottom of the clamping rod 623 is in a hook structure, the clamping rod 623 is made of plastic material or stainless steel material with a certain elasticity, the clamping rod 623 can be clamped in the inner cavity of the connecting groove 5 through the oil inlet hole 612, the stability of the position of the rubber column 622 is further improved, the rubber column 622 is prevented from deviating from the inner cavity of the oil inlet hole 612 due to the centrifugal force of the rotating crankshaft, and in the case of strong pulling of the embedded plate 621, the clamping rod 623 can slide out of the inner cavity of the oil outlet hole 624 due to deformation, the injection of lubricating oil is facilitated, the oil outlet hole 624 is arranged in the middle part of the embedded plate 621 and the rubber column 622, the sponge column 63 is inserted and fixed to the top of the oil outlet hole 624, the lubricating oil can flow out slowly through the sponge column 63, the loss of a large amount of lubricating oil under the action of centrifugal force is reduced, and the lubricating efficiency of the crankshaft is improved.

[0045] Embodiment two

[0046] On the basis of embodiment one and different from embodiment one, as shown in Figure 2 An anti-wear self-lubricating engine crankshaft, the crank assembly 3 comprises a gravity block 31, a groove 32 and a circular arc edge 33, the gravity block 31 is fixed between the main journal 4 and the connecting rod journal 2, the groove 32 is arranged on both sides of the gravity block 31 close to the main journal 4, and the circular arc edge 33 is arranged on the outer wall side of the gravity block 31, through the arrangement of the circular arc edge 33, the wear of the side of the gravity block 31 is reduced.

[0047] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-wear, self-lubricating engine crankshaft characterized by, It includes: Shaft body (1); Connecting rod journal (2), which is arranged between the two shaft bodies (1); Crank assembly (3) installed at the end of the connecting rod journal (2); Main journal (4) installed between the crank assembly (3) and the shaft body (1); Connecting groove (5) is opened in the middle of the main journal (4), the crank assembly (3) and the connecting rod journal (2), which is used for carrying lubricating oil; Lubricating assembly (6), which is respectively installed in the middle of the connecting rod journal (2) and the main journal (4), is used for the feeding and discharging of lubricating oil.

2. A wear resistant self-lubricating engine crankshaft according to claim 1, characterized in that The crank assembly (3) includes: Gravity block (31), which is fixed between the main journal (4) and the connecting rod journal (2); Groove (32) is opened in the two sides of the gravity block (31) near the main journal (4); Arc edge (33) is opened in the outer wall side of the gravity block (31).

3. A self-lubricating wear resistant engine crankshaft as claimed in claim 1, wherein, The lubricating assembly (6) includes: Feeding hole (61), which is respectively opened in the middle of the connecting rod journal (2) and the main journal (4); Plug (62), which is connected to the inner cavity of the feeding hole (61); Sponge column (63) is installed in the middle of the plug (62).

4. A wear resistant self-lubricating engine crankshaft according to claim 3, wherein The inner cavity of the plurality of feeding holes (61) communicates with the inner cavity of the connecting groove (5), and the plug (62) is used for partially plugging the hole diameter of the feeding hole (61) inner cavity.

5. A wear resistant self-lubricating engine crankshaft according to claim 3, wherein The feeding hole (61) includes: Embedded groove (611), which is respectively opened in the outer wall of the connecting rod journal (2) and the main journal (4); Oil feeding hole (612) is opened in the middle of the inner cavity of the embedded groove (611), and the plug (62) is arranged in the inner cavity of the oil feeding hole (612).

6. A wear resistant self-lubricating engine crankshaft according to claim 5, wherein The plug (62) includes: Embedded plate (621), which is inserted and connected to the inner cavity of the embedded groove (611); Rubber column (622), which is fixed in the middle of the embedded plate (621); Multiple clamping rods (623), which are arranged in the outer part of the rubber column (622); Oil outlet hole (624) is opened in the middle of the embedded plate (621) and the rubber column (622).

7. A wear resistant self-lubricating engine crankshaft according to claim 6, characterized in that The embedded plate (621) is in the form of an arc structure matched with the outer wall of the connecting rod journal (2) and the outer wall of the main journal (4), and the rubber column (622) is connected with the inner cavity of the oil feeding hole (612).

8. A wear resistant self-lubricating engine crankshaft according to claim 6, wherein The top of the clamping rod (623) is fixed to the bottom of the embedded plate (621), and the sponge column (63) is inserted and fixed to the top of the oil outlet hole (624).

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