Single-cylinder engine crankshaft with high lubricating performance

Abstract

The utility model relates to the technical field of mechanical parts, and discloses a high-lubricating-performance single-cylinder engine crankshaft which comprises a crankshaft body, an oil channel is formed in the crankshaft body, a connecting rod is installed on the surface of the crankshaft body, an oil through hole is formed in the surface of the crankshaft body, and a round pipe is installed in the oil through hole. The inner wall of the circular pipe is fixedly connected with a mounting ring and a mounting base. According to the single-cylinder engine crankshaft with the high lubricating performance, lubricating oil is thrown out through a gap between the movable ring and the conical stop block and an oil outlet hole in the mounting base, then the portion between the connecting rod and the crankshaft body is lubricated, under the action of centrifugal force, the movable ring can move towards the conical stop block at the moment, and the gap between the movable ring and the conical stop block changes at the moment; if the crankshaft body rotates fast, the centrifugal force is increased at the moment, then the moving distance of the moving ring is far, and the gap between the moving ring and the conical stop block becomes smaller, so that the oil outlet amount is reduced, and the situation that lubricating oil consumption is increased when the crankshaft body rotates fast is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical components, and more specifically to a single-cylinder engine crankshaft with high lubrication performance. Background Art

[0002] The crankshaft receives the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, which makes the crankshaft subject to bending and torsional loads.

[0003] Announcement No. CN210859105U proposes that when the connecting rod neck part on the crankshaft and other components of the compressor are to be matched, it is difficult for the lubricating oil to lubricate the connecting rod neck part, which is easy to cause wear of the crankshaft and thus leads to a short service life of the compressor. By arranging a crankshaft body, an oil inlet channel, an oil hole, an oil outlet hole, a mounting mechanism and a fixing sleeve, during the operation of the compressor, the lubricating oil enters the oil hole from the oil inlet channel and then leaks from the oil outlet hole to the connecting rod neck position of the crankshaft body to lubricate the position, making the crankshaft difficult to wear.

[0004] However, when the crankshaft rotates too fast, the centrifugal force is greater, causing the oil to flow out faster, thereby increasing the amount of lubricating oil used and increasing the consumption of lubricating oil. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a single-cylinder engine crankshaft with high lubrication performance to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a high lubrication performance single-cylinder engine crankshaft, comprising a crankshaft body, an oil passage is provided inside the crankshaft body, a connecting rod is installed on the surface of the crankshaft body, an oil through hole is provided on the surface of the crankshaft body, a round tube is installed inside the oil through hole, a mounting ring and a mounting seat are fixedly connected to the inner wall of the round tube respectively, a conical blocking block is fixedly connected to a side of the mounting seat facing the mounting ring, a reset spring is fixedly connected to a side of the mounting ring facing the mounting seat, a moving ring is fixedly connected to the end surface of the reset spring, the conical blocking block is located inside the moving ring, and the surface of the moving ring overlaps the inner wall of the round tube;

[0007] The upper surface of the mounting seat is provided with a plurality of oil outlet holes, which are arranged in a circumferential array on the upper surface of the mounting seat, and a blocking rod is fixedly connected to one side of the moving ring facing the mounting seat.

[0008] A further solution is that a threaded groove is provided on the surface of the crankshaft body, the inner wall of the threaded groove is threadedly connected to a threaded column, the upper surface of the threaded column is provided with a mounting hole, the surface of the round tube is fixedly connected to the inner wall of the mounting hole, and the upper surface of the threaded column is provided with a hexagonal rotating groove, and the setting of the threaded column facilitates the disassembly and assembly of the round tube.

[0009] The scheme is further that the connecting rod includes a rod body and a connecting ring, the surfaces of the connecting ring and the rod body are fixedly connected with connecting blocks, the opposite surfaces of the upper and lower connecting blocks are provided with mounting holes, fixing bolts are installed inside the mounting holes, the lower surface of the upper connecting block is fixedly connected with a limiting block, the front and back sides of the limiting block are provided with T-slots, the inside of the T-slot is slidably connected with a slider, the opposite surface of the slider and the T-slot is fixedly connected with a connecting spring, the side of the slider away from the connecting spring is fixedly connected with a positioning block, the upper and lower surfaces of the positioning block are both arc-shaped, the upper surface of the lower connecting block is provided with a through opening, the surface of the limiting block overlaps with the inner wall of the through opening, and the upper surface of the positioning block overlaps with the lower surface of the connecting block, the inner ring surface of the rod body and the connecting ring overlaps with the surface of the crankshaft body.

[0010] According to a further solution, there are two circular tubes, which are symmetrically arranged inside the oil hole.

[0011] Technical effects and advantages of the utility model:

[0012] 1. For the high lubrication performance single-cylinder engine crankshaft, when the crankshaft body rotates, centrifugal force is generated, and the lubricating oil enters the oil hole through the oil channel. At this time, the oil moves toward the mounting seat under the action of centrifugal force, and the lubricating oil passes through the gap between the moving ring and the conical blocking block, and is thrown out through the oil outlet hole on the mounting seat, thereby lubricating the connecting rod and the crankshaft body. Under the action of centrifugal force, the moving ring will move toward the conical blocking block, and the gap between the moving ring and the conical blocking block will change. If the crankshaft body rotates faster, the centrifugal force will increase, and the moving ring will move a longer distance, and the gap between the moving ring and the conical blocking block will become smaller, thereby reducing the oil output and avoiding increased lubricating oil consumption when the crankshaft body rotates too fast.

[0013] 2. The high lubrication performance single-cylinder engine crankshaft has the rod body and the connecting ring sleeved on the surface of the crankshaft body. At this time, the limit block is inserted into the through opening. The arc surface of the positioning block is forced to be accommodated in the T-slot. The slider pushes and squeezes the connecting spring. When the upper and lower connecting blocks overlap, the positioning block moves to the bottom of the connecting block. Under the elastic force of the connecting spring, the positioning block is pushed out of the T-slot at this time to limit the upper and lower connecting blocks, thereby preliminarily fixing the rod body and the connecting ring, facilitating the installation of the fixing bolts, thereby facilitating the installation of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0016] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 This is a schematic diagram of the internal structure of the limit block of the utility model;

[0018] Figure 5 It is a schematic diagram of the internal structure of the crankshaft body of the utility model.

[0019] The reference numerals in the drawings are: 1 crankshaft body, 2 connecting rod, 3 round tube, 4 mounting ring, 5 mounting seat, 6 conical blocking block, 7 return spring, 8 moving ring, 9 blocking rod, 10 threaded column, 11 limiting block, 12 sliding block, 13 connecting spring, 14 positioning block;

[0020] 201 rod body, 202 connecting ring, 203 connecting block, 204 fixing bolt. DETAILED DESCRIPTION

[0021] A high lubrication performance single cylinder engine crankshaft, reference Figure 1-5 , including a crankshaft body 1, an oil channel is opened inside the crankshaft body 1, a connecting rod 2 is installed on the surface of the crankshaft body 1, the connecting rod 2 includes a rod body 201 and a connecting ring 202, the connecting ring 202 and the surface of the rod body 201 are fixedly connected with a connecting block 203, the opposite surfaces of the upper and lower connecting blocks 203 are opened with mounting holes, and the inside of the mounting holes is installed with fixing bolts 204, the lower surface of the upper connecting block 203 is fixedly connected to a limiting block 11, the front and back sides of the limiting block 11 are opened with T-shaped grooves, the inside of the T-shaped groove is slidably connected with a slider 12, the opposite surface of the slider 12 and the T-shaped groove is fixedly connected with a connecting spring 13, the side of the slider 12 away from the connecting spring 13 is fixedly connected with a positioning block 14, and the upper and lower surfaces of the positioning block 14 are both arc-shaped.

[0022] A through opening is opened on the upper surface of the lower connecting block 203, the surface of the limit block 11 overlaps with the inner wall of the through opening, and the upper surface of the positioning block 14 overlaps with the lower surface of the connecting block 203, and the inner ring surfaces of the rod body 201 and the connecting ring 202 overlap with the surface of the crankshaft body 1.

[0023] The rod body 201 and the connecting ring 202 are sleeved on the surface of the crankshaft body 1, and the limit block 11 is inserted into the through opening. The arc surface of the positioning block 14 is forced to be accommodated in the T-slot, and the slider 12 pushes and squeezes the connecting spring 13. When the upper and lower connecting blocks 203 overlap, the positioning block 14 moves to the bottom of the connecting block 203. Under the elastic force of the connecting spring 13, the positioning block 14 is pushed out of the T-slot at this time, and the upper and lower connecting blocks 203 are limited, thereby preliminarily fixing the rod body 201 and the connecting ring 202, facilitating the installation of the fixing bolts 204, thereby facilitating the installation of the connecting rod 2.

[0024] An oil hole is provided on the surface of the crankshaft body 1, and a round tube 3 is installed inside the oil hole. There are two round tubes 3, which are symmetrically arranged inside the oil hole. A threaded groove is provided on the surface of the crankshaft body 1, and a threaded column 10 is threadedly connected to the inner wall of the threaded groove. A mounting hole is provided on the upper surface of the threaded column 10. The surface of the round tube 3 is fixedly connected to the inner wall of the mounting hole, and a hexagonal rotating groove is provided on the upper surface of the threaded column 10. The threaded column 10 can be installed in the threaded groove by rotating the threaded column 10 through the hexagonal rotating groove, thereby facilitating the disassembly and assembly of the round tube 3 inside the oil hole.

[0025] The inner wall of the circular tube 3 is fixedly connected with a mounting ring 4 and a mounting seat 5 respectively, a conical blocking block 6 is fixedly connected to the side of the mounting seat 5 facing the mounting ring 4, a return spring 7 is fixedly connected to the side of the mounting ring 4 facing the mounting seat 5, a moving ring 8 is fixedly connected to the end face of the return spring 7, the conical blocking block 6 is located inside the moving ring 8, the surface of the moving ring 8 overlaps with the inner wall of the circular tube 3, a plurality of oil outlet holes are opened on the upper surface of the mounting seat 5, and the plurality of oil outlet holes are arranged in a circular array on the upper surface of the mounting seat 5, a blocking rod 9 is fixedly connected to the side of the moving ring 8 facing the mounting seat 5, and the setting of the blocking rod 9 can prevent the moving ring 8 from overlapping with the surface of the conical blocking block 6 and blocking the oil circuit when moving toward the conical blocking block 6.

[0026] When the crankshaft body 1 rotates, centrifugal force is generated, and the lubricating oil enters the oil hole through the oil channel. At this time, the oil moves toward the mounting seat 5 under the action of centrifugal force, and the lubricating oil passes through the gap between the moving ring 8 and the conical blocking block 6, and is thrown out through the oil outlet hole on the mounting seat 5, thereby lubricating the connecting rod 2 and the crankshaft body 1. Under the action of centrifugal force, the moving ring 8 will move toward the conical blocking block 6. At this time, the gap between the moving ring 8 and the conical blocking block 6 changes. If the crankshaft body 1 rotates faster, the centrifugal force increases, and the moving ring 8 moves a longer distance, and the gap between the moving ring 8 and the conical blocking block 6 becomes smaller, thereby reducing the oil output and avoiding increased lubricating oil consumption when the crankshaft body 1 rotates too fast.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A single-cylinder engine crankshaft with high lubrication performance, comprising a crankshaft body (1), an oil passage is provided inside the crankshaft body (1), a connecting rod (2) is mounted on the surface of the crankshaft body (1), and the characteristics are: An oil hole is provided on the surface of the crankshaft body (1), a round tube (3) is installed inside the oil hole, a mounting ring (4) and a mounting seat (5) are fixedly connected to the inner wall of the round tube (3), a conical blocking block (6) is fixedly connected to the side of the mounting seat (5) facing the mounting ring (4), a return spring (7) is fixedly connected to the side of the mounting ring (4) facing the mounting seat (5), a moving ring (8) is fixedly connected to the end face of the return spring (7), the conical blocking block (6) is located inside the moving ring (8), and the surface of the moving ring (8) overlaps the inner wall of the round tube (3); The upper surface of the mounting seat (5) is provided with a plurality of oil outlet holes, which are arranged in a circular array on the upper surface of the mounting seat (5); a blocking rod (9) is fixedly connected to one side of the movable ring (8) facing the mounting seat (5).

2. A high lubrication performance single-cylinder engine crankshaft according to claim 1, characterized in that: The surface of the crankshaft body (1) is provided with a thread groove, the inner wall of the thread groove is threadedly connected with a thread column (10), the upper surface of the thread column (10) is provided with a mounting hole, the surface of the round tube (3) is fixedly connected to the inner wall of the mounting hole, and the upper surface of the thread column (10) is provided with a hexagonal rotation groove.

3. The high lubrication performance single-cylinder engine crankshaft according to claim 1, characterized in that: The connecting rod (2) comprises a rod body (201) and a connecting ring (202); the connecting ring (202) and the rod body (201) are both fixedly connected with connecting blocks (203) on their surfaces; the upper and lower connecting blocks (203) are both provided with mounting holes on their opposite surfaces; and fixing bolts (204) are installed inside the mounting holes.

4. A high lubrication performance single-cylinder engine crankshaft according to claim 3, characterized in that: The lower surface of the upper connecting block (203) is fixedly connected to a limiting block (11), the front and back surfaces of the limiting block (11) are provided with T-shaped grooves, the interior of the T-shaped groove is slidably connected to a slider (12), and the slider (12) is fixedly connected to the opposite surface of the T-shaped groove with a connecting spring (13).

5. A single-cylinder engine crankshaft with high lubrication performance according to claim 4, characterized in that: A positioning block (14) is fixedly connected to a side of the sliding block (12) away from the connecting spring (13), and the upper surface and the lower surface of the positioning block (14) are both arc-shaped.

6. A high lubrication performance single-cylinder engine crankshaft according to claim 5, characterized in that: The upper surface of the lower connecting block (203) is provided with a through opening, the surface of the limiting block (11) overlaps with the inner wall of the through opening, and the upper surface of the positioning block (14) overlaps with the lower surface of the connecting block (203).

7. A high lubrication performance single-cylinder engine crankshaft according to claim 6, characterized in that: The inner annular surfaces of the rod body (201) and the connecting ring (202) are both overlapped with the surface of the crankshaft body (1).

8. The high lubrication performance single-cylinder engine crankshaft according to claim 1, characterized in that: The number of the circular tubes (3) is two, and the two circular tubes (3) are symmetrically arranged inside the oil through hole.

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