Multi-section crankshaft connecting rod assembly

Abstract

The utility model relates to the technical field of crankshaft connecting rods, in particular to a multi-section crankshaft connecting rod assembly which comprises a main shaft, the main shaft is divided into a plurality of short shafts, the short shafts are connected through connecting assemblies, each connecting assembly is composed of a crank and a connecting rod, and the crank is hollow, so that when the crank operates in an outer shell, the crank can be connected with the connecting rod through the connecting rod. By arranging the oil inlet groove in the large end of the crank, the crank is filled with oil and discharged from the oil discharge hole every time the crank rotates to the bottom of the bearing shell under the driving of the piston connecting rod, so that the lubricating effect is improved, and the service life of the crank is prolonged. In this way, the oil liquid circularly flows in the crank, so that when the oil liquid passes through the filter frame in the crank, dirt, chippings, carbon deposition and other impurities generated in the lubricating oil can be intercepted and collected, and the problem that part abrasion is increased due to the fact that the oil liquid enters the bearing shell is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft connecting rods, in particular to a multi-section crankshaft connecting rod assembly. Background Art

[0002] The crankshaft is the most important part of the engine. The crankshaft receives the force from the connecting rod, converts it into torque output, and drives other accessories on the engine. In the multi-section crankshaft connecting rod assembly, since the crankshaft is divided into multiple sections, each section has a corresponding crank. When the piston is in reciprocating motion between the top dead center and the bottom dead center, the connecting rod pushes the crankshaft's crank to rotate. For example, assuming a four-stroke engine, during the intake stroke, the piston moves downward, and the connecting rod pulls the crankshaft to rotate a certain angle; during the compression stroke, the piston moves upward, and the connecting rod pushes the crankshaft to continue rotating; during the power stroke, the high-pressure gas produced by combustion pushes the piston downward, and the connecting rod pulls the crankshaft to rotate rapidly again, at this time outputting a large torque; during the exhaust stroke, the piston moves upward, and the connecting rod continues to act on the crankshaft.

[0003] The engine runs under high load and high speed for a long time. Within the normal range, the crankshaft connecting rod assembly will generate a lot of heat. To prevent overheating from damaging the assembly and accelerating the wear of the multi-section crankshaft connecting rod assembly, lubrication is usually performed by adding lubricating oil. However, in actual use, the lubricating oil runs under high load and high speed for a long time, and dirt, debris, carbon deposits and other impurities will be generated inside the lubricating oil. If the engine oil is not changed for a long time, these impurities will accumulate and increase, which will increase the risk of component wear. In view of this, we propose a multi-section crankshaft connecting rod assembly. Utility Model Content

[0004] The utility model aims to provide a multi-section crankshaft connecting rod assembly, which solves the problem that if the engine oil is not replaced for a long time, these impurities will accumulate and increase, thereby increasing the risk of wear of components.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-section crankshaft connecting rod assembly includes a main shaft, which is divided into several short shafts. The short shafts are connected by a connecting assembly. The connecting assembly consists of a crank and a connecting rod. The crank is rotatably connected to the two ends of the connecting rod respectively. The connecting rod is connected at the big end of the crank. The small end of the crank is connected to one end of the short shaft at the corresponding position. The interior of the crank is hollow. The outer wall of the crank is provided with an oil inlet groove at the big end, and the outer wall of the crank is provided with an oil drain hole at the small end. The inner wall of the crank is connected to a filter frame.

[0007] Preferably, a slot is provided at the position of the crank located at the filter frame for engaging the filter frame, and a filter hole is provided at the bottom of the filter frame.

[0008] Preferably, the main axis is divided into seven short axes, and the short axes are on the same axis, the six groups of connecting components are staggered with the short axes, and the connecting components are symmetrically distributed on the main axis.

[0009] Preferably, a rotating wheel is provided on the inner wall of the crank, and the rotating wheel is connected to the connecting rod, and a pushing block is provided on the outer wall of the rotating wheel.

[0010] Preferably, an arc-shaped guide plate is arranged outside the rotating wheel, and a first inclined block is arranged at the end of the arc-shaped guide plate.

[0011] Preferably, a sliding groove is provided on the outer wall of the rotating wheel, the inner wall of the sliding groove is slidably connected to the push block, and a spring is connected to the position between the push block and the sliding groove.

[0012] Preferably, a second inclined block is connected to the position of the inner wall of the crank corresponding to the first inclined block, and the second inclined block is in contact with the rotation path of the push block.

[0013] By means of the above technical solution, the utility model provides a multi-section crankshaft connecting rod assembly, which has at least the following beneficial effects:

[0014] 1. The utility model arranges the crank to be hollow so that when the crank operates in the shell, it can store more lubricating oil, so that the parts can be fully soaked and have a better lubrication effect. In addition, by arranging an oil inlet groove at the big end of the crank, the crank is driven by the piston connecting rod to rotate to the bottom of the bearing shell each time, and the oil is discharged from the oil drain hole. In this way, the oil circulates in the crank, and when the oil passes through the filter frame in the crank, the dirt, debris, carbon deposits and other impurities generated in the lubricating oil due to the long-term operation of the lubricating oil under high load and high speed conditions can be intercepted and collected to avoid entering the bearing shell and increasing the wear of the parts.

[0015] 2. The utility model outputs power through the piston connecting rod connected by the connecting rod, driving the rotating wheel to rotate together, so that the rotating wheel drives the push block to rotate at the big end position inside the crank, so as to facilitate the acceleration of the flow of oil, and because the tension of the spring will push the push block against the inner wall of the crank, with the cooperation of the arc guide plate, the arc guide plate and the rotating wheel form a relatively closed channel, so that the push block can form an effective extrusion force when pushing the oil, so as to improve the efficiency of the push block in pushing the oil flow, thereby improving the filtering efficiency of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0017] Figure 1This is a diagram showing the overall appearance of the utility model;

[0018] Figure 2 This is a diagram showing the connection relationship between the crank and the connecting rod in the utility model;

[0019] Figure 3 This is an internal display diagram of the crank in the utility model;

[0020] Figure 4 This is a structural display diagram of the filter frame in the utility model.

[0021] In the figure: 1, main shaft; 2, connecting assembly; 21, crank; 22, connecting rod; 4, oil inlet groove; 41, oil discharge hole; 42, filter frame; 421, filter hole; 422, slot; 43, rotating wheel; 431, slide groove; 432, push block; 433, spring; 44, arc guide plate; 441, first inclined block; 442, second inclined block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] A multi-section crankshaft connecting rod assembly, such as Figure 1-Figure 4 As shown, it includes a main shaft 1, which is divided into several short shafts, and the short shafts are connected by a connecting assembly 2. The connecting assembly 2 is composed of a crank 21 and a connecting rod 22. The crank 21 is rotatably connected to the two ends of the connecting rod 22 respectively. The connecting position of the connecting rod 22 is at the big end of the crank 21, and the small end of the crank 21 is connected to one end of the short shaft at the corresponding position. The interior of the crank 21 is hollow, and an oil inlet groove 4 is opened on the outer wall of the crank 21 at the big end position, and an oil drain hole 41 is opened on the outer wall of the crank 21 at the small end position. The inner wall of the crank 21 is connected to a filter frame 42.

[0025] In this embodiment, by setting the crank 21 to be hollow, more lubricating oil can be stored when the crank 21 operates in the outer shell, so that the parts can be fully soaked and the lubrication effect is better. By setting the oil inlet groove 4 at the big end of the crank 21, the crank 21 is driven by the piston connecting rod each time to rotate to the bottom of the bearing shell, and the oil is discharged from the oil drain hole 41. In this way, the oil circulates in the crank 21, and when the oil passes through the filter frame 42 in the crank 21, the dirt, debris, carbon deposits and other impurities generated in the lubricating oil can be intercepted and collected to avoid entering the bearing shell and increasing the wear of the components.

[0026] Example 2

[0027] like Figure 2 , Figure 3 As shown, based on Example 1, preferably, a slot 422 is provided at the position of the crank 21 located at the filter frame 42 for engaging the filter frame 42 , and a filter hole 421 is provided at the bottom of the filter frame 42 .

[0028] In this embodiment, the filter frame 42 is engaged with the card slot 422 to facilitate regular disassembly of the filter frame 42 for cleaning.

[0029] Example 2

[0030] like Figure 1 As shown, based on Example 1, preferably, the main shaft 1 is divided into seven short shafts, and the short shafts are on the same axis, the number of connecting components 2 is six groups and the short shafts are staggered, and the connecting components 2 are symmetrically distributed on the main shaft 1.

[0031] In this embodiment, the connection assembly 2 is symmetrically arranged to ensure the stability of the output power of the piston connecting rod.

[0032] Example 2

[0033] like Figure 2 , Figure 3 , Figure 4 As shown, on the basis of Example 1, preferably, a rotating wheel 43 is provided on the inner wall of the crank 21, and the rotating wheel 43 is connected to the connecting rod 22, a pushing block 432 is provided on the outer wall of the rotating wheel 43, an arc-shaped guide plate 44 is provided on the outside of the rotating wheel 43, and a first inclined block 441 is provided at the end of the arc-shaped guide plate 44, a sliding groove 431 is provided on the outer wall of the rotating wheel 43, the inner wall of the sliding groove 431 is slidingly connected to the pushing block 432, a spring 433 is connected to the position between the pushing block 432 and the sliding groove 431, and a second inclined block 442 is connected to the position of the inner wall of the crank 21 corresponding to the first inclined block 441, and the second inclined block 442 is in contact with the rotation path of the pushing block 432.

[0034] In this embodiment, the piston connecting rod connected by the connecting rod 22 outputs power, driving the rotating wheel 43 to rotate together, so that the rotating wheel 43 drives the push block 432 to rotate at the position of the big end inside the crank 21, so as to facilitate the acceleration of the flow of oil, and because the tension of the spring 433 will push the push block 432 against the inner wall of the crank 21, with the cooperation of the arc guide plate 44, the arc guide plate 44 and the rotating wheel 43 form a relatively closed channel, so that the push block 432 can form an effective extrusion force when pushing the oil, so as to improve the efficiency of the push block 432 in pushing the oil flow, and the first inclined block 441 and the second inclined block 442 can guide the push block 432, so that it can be smoothly retracted into the slide groove 431 during the rotation.

[0035] When a multi-section crankshaft connecting rod assembly of the utility model is used, by setting the crank 21 to be hollow, more lubricating oil can be stored when the crank 21 operates in the housing, so that the parts can be fully infiltrated and a better lubrication effect can be achieved. In addition, by setting the oil inlet groove 4 at the big end of the crank 21, the crank 21 is driven by the piston connecting rod to rotate to the bottom of the bearing housing each time, and the oil is discharged from the oil discharge hole 41. In this way, the oil circulates in the crank 21, and when the oil passes through the filter frame 42 in the crank 21, the dirt, debris, carbon deposits and other impurities generated in the lubricating oil due to the long-term operation of the lubricating oil under high load and high speed conditions can be intercepted and collected to avoid the oil from entering the crank 21. The piston connecting rod connected by the connecting rod 22 outputs power to drive the rotating wheel 43 to rotate together, so that the rotating wheel 43 drives the push block 432 to rotate at the position of the big end inside the crank 21, so as to facilitate the acceleration of the flow of oil, and because the tension of the spring 433 will push the push block 432 against the inner wall of the crank 21, with the cooperation of the arc-shaped guide plate 44, the arc-shaped guide plate 44 and the rotating wheel 43 form a relatively closed channel, so that the push block 432 can form an effective squeezing force when pushing the oil, so as to improve the efficiency of the push block 432 in pushing the oil flow, and the first inclined block 441 and the second inclined block 442 can guide the push block 432, so that it can be smoothly retracted into the slide groove 431 during the rotation.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-section crankshaft connecting rod assembly, comprising a main shaft (1), characterized in that: The main shaft (1) is divided into a plurality of short shafts, and the short shafts are connected by a connecting assembly (2). The connecting assembly (2) is composed of a crank (21) and a connecting rod (22). The crank (21) is rotatably connected to the two ends of the connecting rod (22). The connecting position of the connecting rod (22) is located at the large end of the crank (21). The small end of the crank (21) is connected to one end of the short shaft at the corresponding position. The crank (21) is hollow inside. An oil inlet groove (4) is provided on the outer wall of the crank (21) at the large end. An oil drain hole (41) is provided on the outer wall of the crank (21) at the small end. The inner wall of the crank (21) is connected to a filter frame (42).

2. A multi-section crankshaft connecting rod assembly according to claim 1, characterized in that: The crank (21) is provided with a slot (422) at a position of the filter frame (42) for clamping the filter frame (42), and a filter hole (421) is provided at the bottom of the filter frame (42).

3. The multi-section crankshaft connecting rod assembly according to claim 1, characterized in that: The main axis (1) is divided into seven short axes, and the short axes are located on the same axis. The six groups of connection components (2) are staggered with the short axes, and the connection components (2) are symmetrically distributed on the main axis (1).

4. The multi-section crankshaft connecting rod assembly according to claim 1, characterized in that: A rotating wheel (43) is arranged on the inner wall of the crank (21), and the rotating wheel (43) is connected to the connecting rod (22), and a pushing block (432) is arranged on the outer wall of the rotating wheel (43).

5. A multi-section crankshaft connecting rod assembly according to claim 4, characterized in that: An arc-shaped guide plate (44) is arranged outside the rotating wheel (43), and a first inclined block (441) is arranged at the end of the arc-shaped guide plate (44).

6. A multi-section crankshaft connecting rod assembly according to claim 5, characterized in that: The outer wall of the rotating wheel (43) is provided with a sliding groove (431), the inner wall of the sliding groove (431) is slidably connected to a push block (432), and a spring (433) is connected between the push block (432) and the sliding groove (431).

7. A multi-section crankshaft connecting rod assembly according to claim 6, characterized in that: A second inclined block (442) is connected to a position of the inner wall of the crank (21) corresponding to the first inclined block (441), and the second inclined block (442) is in contact with the rotation path of the push block (432).

Images