Crankshaft mechanism, engine and locomotive with eccentric rotation motion

Abstract

Disclosed are a crankshaft mechanism with eccentric rotational motion, an engine and a power locomotive, belonging to the technical field of mechanical structures. The crankshaft mechanism with eccentric rotational motion provided by the present invention comprises a track (1), a movable crank (2), a connecting rod journal (3), a main journal (4), a bearing wheel set (5), a fixed crank (7) and a fixed journal (102). The engine comprises the crankshaft mechanism with eccentric rotational motion. The power locomotive comprises the crankshaft mechanism with eccentric rotational motion. The crankshaft mechanism with eccentric rotational motion, the engine and the power locomotive achieve that the top dead point of the crankshaft is not perpendicular to the axis of the main journal by making the crankshaft rotate eccentrically, so that effective torque can be obtained not only from the starting point of the power stroke, but also the operative idling speed can be reduced. Thus, energy efficiency utilization rate is improved, exhaust emissions are reduced, and thus pollution to the environment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical structures, and in particular to a crankshaft mechanism, an engine and a power locomotive with eccentric rotational motion. Background Art

[0002] The crankshafts of existing reciprocating piston engines all move in a circular motion with their axis. When the crankshaft moves to the top dead center, the compression stroke of the engine is at its highest point, which is the moment when the compressed gas pressure is the highest. It is also the starting point of the power stroke and the best time for fuel combustion. However, at this time, the piston is perpendicular to the connecting rod, connecting rod journal, crank, and main journal, and there is no twistable force arm, making it difficult for the engine to run. In the prior art, the crankshaft is rotated by making the engine run at a certain idle speed through the vertical state between the top dead center of the crankshaft and the axis of the main journal. This results in a huge loss of energy, a waste of fuel, an increase in exhaust gas emissions, and environmental pollution. Summary of the invention

[0003] In view of this, the present invention provides a crankshaft mechanism, an engine and a power locomotive with eccentric rotational motion, which realizes that the top dead point of the crankshaft is not perpendicular to the axis of the main journal by making the crankshaft rotate eccentrically, so that effective torque can be obtained from the starting point of the power stroke. It can also reduce the operative idle speed, thereby improving energy efficiency, reducing exhaust emissions and thus reducing pollution to the environment. It is more suitable for practical use.

[0004] In order to achieve the above first object, the technical solution of the crankshaft mechanism with eccentric rotation motion provided by the present invention is as follows:

[0005] The crankshaft mechanism with eccentric rotation provided by the present invention comprises a running track (1), a movable crank (2), a connecting rod journal (3), a main journal (4), a bearing wheel set (5), a fixed crank (7) and a fixed journal (102).

[0006] One end of the movable crank (2) is fixedly connected to one end of the connecting rod journal (3), and the other end of the movable crank (2) is fixedly connected to one end of the bearing wheel assembly (5), and the movable crank (2) forms a moving pair through the fixed crank (7);

[0007] The bearing wheel set (5) is arranged in the track of the travel track (1), wherein the bearing wheel set (5) comprises a small bearing wheel and a large bearing wheel, the small bearing wheel rolls on the inner edge of the travel track (1), and the large bearing wheel rolls on the outer edge of the travel track (1).

[0008] The outer side of the travel track (1) is provided with a fixed neck (102), and the inner side of the travel track (1) is provided with an eccentric through hole (12).

[0009] The other end of the main journal (4) is inserted into the eccentric through hole (12), and the fixed neck (102) is fixed on the engine body.

[0010] The crankshaft mechanism with eccentric rotation motion provided by the present invention can be further implemented by the following technical solutions:

[0011] Preferably, the movable crank (2) comprises a first movable crank (2a) and a second movable crank (2b), one end of the first movable crank (2a) is fixedly connected to one end of the connecting rod journal (3), one end of the second movable crank (2b) is fixedly connected to the other end of the connecting rod journal (3), the other end of the first movable crank (2a) is fixedly connected to one end of the first bearing wheel group (5a), the other end of the second movable crank (2b) is fixedly connected to one end of the second bearing wheel group (5b), the first movable crank (2a) is placed in a groove of the first fixed crank (7a) and can slide therein, and the second movable crank (2b) is placed in a groove of the second fixed crank (7b) and can slide therein.

[0012] Preferably, the bearing wheel set (5) comprises a first bearing wheel set (5a) and a second bearing wheel set (5b).

[0013] The bearing wheel group (5a) is provided with a first small bearing wheel (8) and a sixth large bearing wheel (9) and is placed in a groove track of the first running track (1a); the second bearing wheel group (5b) is provided with a tenth small bearing wheel and a seventh large bearing wheel and is placed in a groove track of the second running track (1b).

[0014] Preferably, the space travel track (1) comprises a first space travel track (1a) and a second space travel track (1b), the first space travel track (1a) is provided with a first fixing neck (102a) on the outer side, the second space travel track (1b) is provided with a second fixing neck (102b) on the outer side, the first space travel track (1a) is provided with a fourth eccentric through hole (12a) in the interior, and the second space travel track (1b) is provided with a fifth eccentric through hole in the interior.

[0015] Preferably, the fixed crank (7) comprises a first fixed crank (7a) and a second fixed crank (7b), wherein one side of the first fixed crank (7a) is provided with a groove and enables the first movable crank (2a) to slide therein, and the other side of the first fixed crank (7a) is integrally connected to one end of the first main journal (4a), and one side of the second fixed crank (7b) is provided with a groove and enables the second movable crank (2b) to slide therein, and the other side of the second fixed crank (7b) is integrally connected to one end of the second main journal (4b).

[0016] Preferably, the main journal (4) comprises a first main journal (4a) and a second main journal (4b),

[0017] The other end of the first main journal (4a) is inserted into the fourth eccentric through hole (12a) of the first orbital track (1a) via a sleeve, and the other end of the second main journal (4b) is inserted into the fifth eccentric through hole of the second orbital track (1b) via a sleeve.

[0018] Preferably, the fixing neck (102) comprises a first fixing neck (102a) and a second fixing neck (102b).

[0019] The first fixing neck (102a) is fixed on the engine body, and the second fixing neck (102b) is fixed on the engine body.

[0020] The first small bearing wheel (8) rolls on the inner edge of the groove track of the first running track (1a) and can roll on it, and the tenth small bearing wheel rolls on the inner edge of the groove track of the second running track (1b) and can roll on it,

[0021] The sixth large bearing wheel (9) rolls on the outer edge of the groove track of the first running track (1a) and can roll on it, and the seventh large bearing wheel rolls on the outer edge of the groove track of the second running track (1b) and can roll on it.

[0022] Preferably, the orbital track (1) is a circular track, and the orbital track (1) is made of a bearing, the inner ring of the bearing serves as the inner edge of the track, and the outer ring of the bearing rotates with the movable crank (2).

[0023] The space travel track (1) comprises a first space travel track (1a) and a second space travel track (1b), the inner outer ring of the first space travel track (1a) is fixedly connected to one end of the first distance limiting shaft (501a), the inner outer ring of the second space travel track (1b) is fixedly connected to one end of the second distance limiting shaft (501b), an eighth fixing neck is arranged on the outer inner ring of the first space travel track (1a), a ninth fixing neck (103) is arranged on the outer inner ring of the second space travel track (1b), a fourth eccentric through hole (12a) is arranged in the inner ring of the first space travel track (1a), and a fifth eccentric through hole is arranged in the inner ring of the second space travel track (1b),

[0024] The distance limiting axis (501) comprises a first distance limiting axis (501a) and a second distance limiting axis (501b),

[0025] The other end of the first limiting shaft (501a) is inserted into the second through hole (13) of the first movable crank (2a) through a shaft sleeve, and the other end of the second limiting shaft (501b) is inserted into the third through hole of the second movable crank (2b) through a shaft sleeve.

[0026] A second through hole (13) is provided at one end of the first movable crank (2a), and a third through hole is provided at one end of the second movable crank (2b).

[0027] The fourth eccentric through hole (12a) and the fifth eccentric through hole are arranged corresponding to each other in the inner circle of the travel track (1).

[0028] In order to achieve the above second purpose, the technical solution of the engine provided by the present invention is as follows:

[0029] The engine provided by the present invention comprises a crankshaft mechanism provided by the present invention that performs eccentric rotational motion,

[0030] The connecting rod journal (3) is connected to the connecting rod (6) through a bearing bush, and the other end of the connecting rod (6) is connected to other corresponding parts of the engine.

[0031] The free end of the main journal (4) is connected to other corresponding components of the engine.

[0032] In order to achieve the third objective, the technical solution of the power locomotive provided by the present invention is as follows:

[0033] The power locomotive provided by the present invention comprises the crankshaft mechanism with eccentric rotation motion provided by the present invention.

[0034] The crankshaft mechanism, engine and power locomotive with eccentric rotation provided by the present invention realize that the top dead point of the crankshaft is not perpendicular to the axis of the main journal by making the crankshaft rotate eccentrically, which can not only obtain effective torque from the starting point of the power stroke, but also reduce the operative idle speed, thereby improving energy efficiency, reducing exhaust emissions and reducing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0036] Figure 1 This is a schematic diagram of the assembly structure of a crankshaft mechanism with eccentric rotation motion involved in a first embodiment of the present invention;

[0037] Figure 2It is a schematic diagram of the three-dimensional structure of a crankshaft mechanism with eccentric rotation motion involved in a first embodiment of the present invention;

[0038] Figure 3 A schematic diagram of the mechanical motion of a crankshaft mechanism with eccentric rotation motion according to a first embodiment of the present invention;

[0039] Figure 4 A schematic diagram of the mechanical motion of a crankshaft mechanism with eccentric rotation motion according to the second embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the mechanical motion of a crankshaft mechanism with eccentric rotation motion according to the third embodiment of the present invention;

[0041] Figure 6 It is a schematic diagram of the three-dimensional structure of the crankshaft mechanism with eccentric rotation motion involved in the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0042] The present invention is to solve the problems existing in the prior art, and provides a crankshaft mechanism, an engine and a power locomotive with eccentric rotational motion. By making the crankshaft rotate eccentrically, the top dead point of the crankshaft is not perpendicular to the axis of the main journal, which can not only obtain effective torque from the starting point of the power stroke, but also reduce the operative idle speed, thereby improving energy efficiency, reducing exhaust emissions and thus reducing pollution to the environment, and thus being more suitable for practical use.

[0043] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the crankshaft mechanism, engine and power locomotive with eccentric rotation motion proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, the features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0044] The term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist, for example, A and / or B. Specifically, it is understood that: A and B may be included at the same time, A may exist alone, or B may exist alone, and any of the above three situations may be met.

[0045] The special terms involved in the present invention are: eccentric rotational motion in the present invention is a motion mode of eccentric rotational motion with the main journal in an eccentric position as the axis; a running track is a track used to limit the crank of a crankshaft to operate along the track, and the track is a track made according to a preset operating trajectory; a movable crank is a crank that can move when the crankshaft is running and can change the wheelbase between the two ends and the main journal; a fixed crank is a crank used to connect the main journal and the movable crank and can make the movable crank slide inside; a distance limiting shaft is a pin shaft used to connect the running track and the movable crank; a fixed neck is a neck used to fix a crankshaft that rotates in eccentric rotation; a preset trajectory is an operating trajectory preset according to the actual needs of the crankshaft; and an eccentric angle in the present invention is an angle between the crank of a crankshaft and the position of the top dead center of the crankshaft when it is in a vertical state.

[0046] Embodiment 1

[0047] like Figure 1 , Figure 2 , Figure 3As shown, the state of the crank mechanism with eccentric rotation provided by the first embodiment of the present invention when it moves to the top dead center, the crank mechanism with eccentric rotation includes a track 1, a movable crank 2, a connecting rod journal 3, a main journal 4, a bearing wheel set 5 and a fixed crank 7. The movable crank 2 includes a first movable crank 2a and a second movable crank 2b, one end of the first movable crank 2a is fixedly connected to one end of the connecting rod journal 3, one end of the second movable crank 2b is fixedly connected to the other end of the connecting rod journal 3, the other end of the first movable crank 2a is fixedly connected to one end of the first bearing wheel set 5a, the other end of the second movable crank 2b is fixedly connected to one end of the second bearing wheel set 5b, the first movable crank 2a is placed in the groove of the first fixed crank 7a and can slide inside, and the second movable crank 2b is placed in the groove of the second fixed crank 7b and can slide inside. The fixed crank 7 includes a first fixed crank 7a and a second fixed crank 7b. One side of the first fixed crank 7a is provided with a groove and can make the first movable crank 2a slide inside. The other side of the first fixed crank 7a is connected to one end of the first main journal 4a. One side of the second fixed crank 7b is provided with a groove and can make the second movable crank 2b slide inside. The other side of the second fixed crank 7b is connected to one end of the second main journal 4b. The first movable crank 2a and the first fixed crank 7a form a set of slider guide rails. The first movable crank 2a is the slider of the first fixed crank 7a, and the first fixed crank 7a is the guide rail of the first movable crank 2a. The second movable crank 2b and the second fixed crank 7b form a set of slider guide rails. The second movable crank 2b is the slider of the second fixed crank 7b, and the second fixed crank 7b is the guide rail of the second movable crank 2b. The main journal 4 includes a first main journal 4a and a second main journal 4b. The main journal 4 is placed on the eccentric position of the preset track 121, and the connecting rod journal 3 rotates according to the preset track 121, driving the movable crank 2 to rotate. The movable crank 2 slides in the groove of the fixed crank 7 and changes the wheelbase between the connecting rod journal 3 and the main journal 4 according to the wheelbase change between the preset track 121 and the main journal 4, and drives the bearing wheel group 5 to change the wheelbase with the main journal 4. The connecting rod journal 3 rotates one circle according to the preset track 121, and a corresponding track is formed at the bearing wheel group 5. A corresponding groove-shaped space track 1 is made according to this track and the position of the main journal 4. The space track 1 includes a first space track 1a and a second space track 1b. The first space track 1a is provided with a first fixed neck 102a, and the second space track 1b is provided with a second fixed neck 102b. The first space track 1a is provided with a fourth eccentric through hole 12a, and the second space track 1b is provided with a fifth eccentric through hole. The fourth eccentric through hole 12a and the fifth eccentric through hole have the same structural principle and correspond to each other. The fixing neck 102 includes a first fixing neck 102a and a second fixing neck 102b. The first fixing neck 102a is fixed on the engine body, and the second fixing neck 102b is fixed on the engine body. The bearing wheel group 5 includes a first bearing wheel group 5a and a second bearing wheel group 5b.The first bearing wheel group 5a is provided with the first small bearing wheel 8 and the sixth large bearing wheel 9 and is placed in the groove track of the first space track 1a, and the second bearing wheel group 5b is provided with the tenth small bearing wheel and the seventh large bearing wheel and is placed in the groove track of the second space track 1b. The first small bearing wheel 8 rolls on the inner edge of the groove track of the first space track 1a and can roll on it, and the tenth small bearing wheel rolls on the inner edge of the groove track of the second space track 1b and can roll on it. The sixth large bearing wheel 9 rolls on the outer edge of the groove track of the first space track 1a and can roll on it, and the seventh large bearing wheel rolls on the outer edge of the groove track of the second space track 1b and can roll on it. The first small bearing wheel 8 and the tenth small bearing wheel have the same structural principle and correspond to each other. The sixth large bearing wheel 9 and the seventh large bearing wheel have the same structural principle and correspond to each other. The first universal track 1a and the first bearing wheel group 5a form a set of slider guide rails, the first universal track 1a is the guide rail of the first bearing wheel group 5a, the first bearing wheel group 5a is the slider of the first universal track 1a, the second universal track 1b and the second bearing wheel group 5b form a set of slider guide rails, the second universal track 1b is the guide rail of the second bearing wheel group 5b, and the second bearing wheel group 5b is the slider of the second universal track 1b. The other end of the first main journal 4a is inserted into the fourth eccentric through hole 12a of the first universal track 1a through a sleeve, and the other end of the second main journal 4b is inserted into the fifth eccentric through hole of the second universal track 1b through a sleeve. The first universal track 1a and the second universal track 1b have the same structural principle and correspond to each other, the first fixed neck 102a and the second fixed neck 102b have the same structural principle and correspond to each other, the first movable crank 2a and the second movable crank 2b have the same structural principle and correspond to each other, the first fixed crank 7a and the second fixed crank 7b have the same structural principle and correspond to each other, the first main journal 4a and the second main journal 4b have the same structural principle and correspond to each other, and the first bearing wheel group 5a and the second bearing wheel group 5b have the same structural principle and correspond to each other.

[0048] During operation, the fixed neck 102 is fixed on the engine and does not move. The fourth eccentric through hole 12a and the fifth eccentric through hole in the fixed neck 102 work together to make the main journal 4 located at the eccentric position of the fourth eccentric through hole 12a and the fifth eccentric through hole. During operation, the engine pushes the connecting rod 6 with the thrust of energy conversion, and the connecting rod 6 pushes the connecting rod journal 3 through the bearing bush. The connecting rod journal 3 twists the fixed crank 7 through the movable crank 2, and the fixed crank 7 drives the main journal 4 to rotate. At the same time, the movable crank 2 drives the bearing wheel set 5 to roll and rotate in the space track 1, so that the space track 1 restricts the bearing wheel set 5 to rotate according to the shape of the space track 1. When the axis distance between the track 1 and the main journal 4 changes, the track 1 drives the movable crank 2 to slide in the groove of the fixed crank 7 through the bearing wheel set 5, so that the axis distance between the connecting rod journal 3 and the main journal 4 changes with the change of the axis distance between the track 1 and the main journal 4, so that the connecting rod journal 3 follows the track 1 and rotates with the main journal 4 as the axis according to the preset track 121. Since the main journal 4 is at an eccentric position of the preset track 121, when the connecting rod journal 3 moves to the top dead center of the preset track 121, it is not perpendicular to the main journal 4. Since one end of the movable crank 2 is connected to the bearing wheel set 5 as a whole, and the other end is connected to the connecting rod journal 3 as a whole and placed in the groove of the fixed crank 7, and the fixed crank 7 is connected to the main journal 4 as a whole, and the bearing wheel set 5 is placed in the groove of the travel track 1, the fulcrum of the crankshaft is the main journal 4 and the travel track 1, the force application point is the connecting rod journal 3, and the force receiving point is the main journal 4 and the travel track 1. When the engine applies the thrust converted by the energy to the connecting rod journal 3 at the force application point, the connecting rod journal 3 uses the main journal 4 and the travel track 1 as a fulcrum, and the main journal 4 and the travel track 1 as a force receiving point, and applies the applied force to the main journal 4 and the travel track 1. The main journal 4 converts this force into rotational power, and the bearing wheel set 5 rolls in the travel track 1 to convert this force into rotational power.

[0049] Embodiment 2

[0050] like Figure 4 As shown, in the state when the crankshaft mechanism with eccentric rotational motion moves to the top dead center provided in the second embodiment of the present invention, the preset track 122 is an elliptical track. According to the manufacturing method of the orbital track 1 in the first embodiment, the groove orbital track 112 is made through the preset track 122. Through the restriction of the orbital track 112, the connecting rod journal 3 can be operated according to the preset track 122. The preset track 122 of this embodiment is different in shape from the preset track 121 of the first embodiment, and the orbital track 112 of this embodiment is different in shape from the orbital track 1 of the first embodiment. The other structures and principles are the same.

[0051] Embodiment 3

[0052] like Figure 5As shown, in the state when the crank mechanism with eccentric rotational motion moves to the top dead center provided in the third embodiment of the present invention, the preset track 123 is a rounded rectangular track. According to the manufacturing method of the orbital track 1 in the first embodiment, the groove orbital track 113 is made through the preset track 123. Through the restriction of the orbital track 113, the connecting rod journal 3 can be operated according to the preset track 123. The preset track 123 of this embodiment is different in shape from the preset track 121 of the first embodiment, and the orbital track 113 of this embodiment is different in shape from the orbital track 1 of the first embodiment, and the other structures and principles are the same.

[0053] Embodiment 4

[0054] like Figure 6As shown, the crankshaft mechanism with eccentric rotational motion provided by the embodiment of the present invention is in a state when it moves to the top dead center. The orbital track 1 is based on the shape of the orbital track 1 in the first embodiment as the preset trajectory, and the position of the main journal 4 in the first embodiment is used as the position of the main journal 4. The circular trajectory that is the same as the preset trajectory 121 in the first embodiment is made according to the manufacturing method of the orbital track 1 in the first embodiment. The orbital track is made according to this circular trajectory. The orbital track 1 is made of bearings, and the inner ring of the bearing serves as the inner edge of the track. The outer ring of the bearing rotates with the movable crank 2. The space travel track 1 includes a first space travel track 1a and a second space travel track 1b. The inner outer ring of the first space travel track 1a is fixedly connected to one end of the first space limit shaft 501a, and the inner outer ring of the second space travel track 1b is fixedly connected to one end of the second space limit shaft 501b. The inner outer ring of the first space travel track 1a is provided with an eighth fixed neck, and the inner outer ring of the second space travel track 1b is provided with a ninth fixed neck 103. The inner inner ring of the first space travel track 1a is provided with a fourth eccentric through hole 12a, and the inner inner ring of the second space travel track 1b is provided with a fifth eccentric through hole. The space limit shaft 501 includes a first space limit shaft 501a and a second space limit shaft 501b. The first space limit shaft 501a is inserted into the second through hole 13 of the first movable crank 2a through a sleeve, and the second space limit shaft 501b is inserted into the third through hole of the second movable crank 2b through a sleeve. One end of the first movable crank 2a is provided with a second through hole 13, and one end of the second movable crank 2b is provided with a third through hole. The fourth eccentric through hole 12a and the fifth eccentric through hole are arranged in the inner circle of the space track 1 in correspondence with each other. The eighth fixed neck and the ninth fixed neck 103 have the same structural principle and correspond to each other. The first space track 1a and the second space track 1b have the same structural principle and correspond to each other. The first distance limiting shaft 501a and the second distance limiting shaft 501b have the same structural principle and correspond to each other. Through the restriction of the space track 1, the connecting rod journal 3 can be operated according to the track shape of the space track 1 in Example 1. The preset track of this embodiment is the same as the shape of the space track 1 of Example 1, the shape of the space track 1 of this embodiment is the same as the shape of the preset track 121 of Example 1, the space track 1 of this embodiment is different in structure from the space track 1 of Example 1, the distance limiting shaft 501 of this embodiment is different in structure from the bearing wheel set 5 of Example 1, and the second through hole 13 and the third through hole are provided at one end of the movable crank 2 of this embodiment, which are different in structure from the movable crank 2 of Example 1, and the other structures and principles are the same.

[0055] Embodiment 5

[0056] Since in existing engines, the ignition advance angle is between 5 degrees and 30 degrees, the eccentric angle of the main journal 4 and the connecting rod journal 3 of the crankshaft that rotates eccentrically is preferably between 5 degrees and 30 degrees when at the top dead center. In this way, the engine with an ignition advance angle between 5 degrees and 30 degrees has a twistable lever arm when moving to the top dead center.

[0057] The eccentrically rotating crankshaft provided in the first, second, third and fourth embodiments of the present invention realizes that the top dead point of the crankshaft is not perpendicular to the axis of the main journal by making the crankshaft rotate eccentrically, which can not only obtain effective torque from the starting point of the crankshaft power stroke, but also reduce the operative idle speed, thereby improving the energy efficiency utilization rate of the crankshaft, reducing exhaust emissions and thus reducing pollution to the environment.

[0058] Embodiment 6

[0059] See also Figure 1 The engine provided by the sixth embodiment of the present invention includes any one of the crankshaft mechanisms provided by the first, second, third and fourth embodiments of the present invention that rotates eccentrically, one end of the connecting rod 6 is connected to the connecting rod journal 3 through a bearing, and the other end of the connecting rod 6 is connected to other corresponding components of the engine. The free end of the main journal 4 is connected to other corresponding components of the engine.

[0060] The engine provided by the present invention uses a crankshaft mechanism with eccentric rotation to achieve that the top dead point of the engine crankshaft is not perpendicular to the axis of the main journal, which can not only obtain effective torque from the starting point of the engine power stroke, but also reduce the operative idle speed, thereby improving the energy efficiency utilization rate of the engine, reducing exhaust emissions and thus reducing pollution to the environment.

[0061] Embodiment 7

[0062] The power locomotive provided in the seventh embodiment of the present invention includes any one of the crankshaft mechanisms provided in the first, second, third and fourth embodiments of the present invention that rotates in an eccentric manner.

[0063] The power locomotive provided by the present invention uses a crankshaft mechanism with eccentric rotational motion to achieve that the top dead center of the crankshaft of the power locomotive is not perpendicular to the axis of the main journal, which can not only obtain effective torque from the starting point of the power locomotive in the power stroke, but also reduce the operative idle speed, thereby improving the energy efficiency utilization rate of the power locomotive, reducing exhaust emissions and thus reducing pollution to the environment.

[0064] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A crankshaft mechanism with eccentric rotation motion, characterized in that: The invention comprises a travel track (1), a movable crank (2), a connecting rod journal (3), a main journal (4), a bearing wheel set (5), a fixed crank (7) and a fixed neck (102). One end of the movable crank (2) is fixedly connected to one end of the connecting rod journal (3), and the other end of the movable crank (2) is fixedly connected to one end of the bearing wheel assembly (5), and the movable crank (2) forms a moving pair through the fixed crank (7); The bearing wheel set (5) is arranged in the track of the travel track (1), wherein the bearing wheel set (5) comprises a small bearing wheel and a large bearing wheel, the small bearing wheel rolls on the inner edge of the travel track (1), and the large bearing wheel rolls on the outer edge of the travel track (1). The outer side of the travel track (1) is provided with a fixed neck (102), and the inner side of the travel track (1) is provided with an eccentric through hole (12). The other end of the main journal (4) is inserted into the eccentric through hole (12), and the fixed neck (102) is fixed on the engine body; The bearing wheel set (5) comprises a first bearing wheel set (5a) and a second bearing wheel set (5b), The main journal (4) comprises a first main journal (4a) and a second main journal (4b), The fixing neck (102) comprises a first fixing neck (102a) and a second fixing neck (102b), The fixed crank (7) comprises a first fixed crank (7a) and a second fixed crank (7b), The space travel track (1) comprises a first space travel track (1a) and a second space travel track (1b). The movable crank (2) comprises a first movable crank (2a) and a second movable crank (2b), one end of the first movable crank (2a) is fixedly connected to one end of the connecting rod journal (3), one end of the second movable crank (2b) is fixedly connected to the other end of the connecting rod journal (3), the other end of the first movable crank (2a) is fixedly connected to one end of the first bearing wheel group (5a), the other end of the second movable crank (2b) is fixedly connected to one end of the second bearing wheel group (5b), the first movable crank (2a) is placed in a groove of the first fixed crank (7a) and can slide therein, and the second movable crank (2b) is placed in a groove of the second fixed crank (7b) and can slide therein; The first bearing wheel set (5a) is provided with a first small bearing wheel (8) and a sixth large bearing wheel (9) and is placed in a groove track of the first running track (1a); the second bearing wheel set (5b) is provided with a tenth small bearing wheel and a seventh large bearing wheel and is placed in a groove track of the second running track (1b); A first fixing neck (102a) is provided on the outer side of the first travel track (1a), a second fixing neck (102b) is provided on the outer side of the second travel track (1b), a fourth eccentric through hole (12a) is provided in the first travel track (1a), and a fifth eccentric through hole is provided in the second travel track (1b); One side of the first fixed crank (7a) is provided with a groove in which the first movable crank (2a) can slide, and the other side of the first fixed crank (7a) is integrally connected to one end of the first main journal (4a), one side of the second fixed crank (7b) is provided with a groove in which the second movable crank (2b) can slide, and the other side of the second fixed crank (7b) is integrally connected to one end of the second main journal (4b); The other end of the first main journal (4a) is inserted into the fourth eccentric through hole (12a) of the first orbital track (1a) through a sleeve, and the other end of the second main journal (4b) is inserted into the fifth eccentric through hole of the second orbital track (1b) through a sleeve; The first small bearing wheel (8) rolls on the inner edge of the groove track of the first running track (1a) and can roll on it, and the tenth small bearing wheel rolls on the inner edge of the groove track of the second running track (1b) and can roll on it, The sixth large bearing wheel (9) rolls on the outer edge of the groove track of the first running track (1a) and can roll on it, and the seventh large bearing wheel rolls on the outer edge of the groove track of the second running track (1b) and can roll on it; or The travel track (1) is made of a bearing, the inner ring of the bearing serves as the inner edge of the track, the outer ring of the bearing rotates with the movable crank (2), the inner outer ring of the first travel track (1a) is fixedly connected to one end of the first distance limiting shaft (501a), the inner outer ring of the second travel track (1b) is fixedly connected to one end of the second distance limiting shaft (501b), the inner outer ring of the first travel track (1a) is provided with an eighth fixing neck, the inner outer ring of the second travel track (1b) is provided with a ninth fixing neck (103), the inner inner ring of the first travel track (1a) is provided with a fourth eccentric through hole (12a), the inner inner ring of the second travel track (1b) is provided with a fourth eccentric through hole (12a), the inner inner ring of the second travel track (1b) is provided with a fourth eccentric through hole (12a), the inner inner ring of the first travel track (1a) is provided with a fourth eccentric through hole (12a), the inner inner ring of the second travel track (1b) is provided with a fourth eccentric through hole (12a), the inner inner ring of the first ... A fifth eccentric through hole is provided in the inner ring of the space limiting shaft (501), the space limiting shaft (501) comprises a first space limiting shaft (501a) and a second space limiting shaft (501b), the other end of the first space limiting shaft (501a) is inserted into the second through hole (13) of the first movable crank (2a) through a shaft sleeve, the other end of the second space limiting shaft (501b) is inserted into the third through hole of the second movable crank (2b) through a shaft sleeve, one end of the first movable crank (2a) is provided with a second through hole (13), one end of the second movable crank (2b) is provided with a third through hole, the fourth eccentric through hole (12a) and the fifth eccentric through hole are provided in the inner ring of the space travel track (1) in correspondence with each other.

2. The crankshaft mechanism with eccentric rotational motion according to claim 1, characterized in that: The first fixing neck (102a) is fixed on the engine body, and the second fixing neck (102b) is fixed on the engine body.

3. The crankshaft mechanism with eccentric rotational motion according to claim 1, characterized in that: The space travel track (1) is a circular track.

4. An engine, characterized in that: A crankshaft mechanism with eccentric rotational motion as claimed in any one of claims 1 to 3, The connecting rod journal (3) is connected to the connecting rod (6) through a bearing bush, and the other end of the connecting rod (6) is connected to other corresponding parts of the engine. The free end of the main journal (4) is connected to other corresponding components of the engine.

5. A power locomotive, characterized in that: A crankshaft mechanism with eccentric rotational motion comprising any one of claims 1 to 3.

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