CN219492403U - Connecting mechanism - Google Patents
Connecting mechanism Download PDFInfo
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- CN219492403U CN219492403U CN202320109621.8U CN202320109621U CN219492403U CN 219492403 U CN219492403 U CN 219492403U CN 202320109621 U CN202320109621 U CN 202320109621U CN 219492403 U CN219492403 U CN 219492403U
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- guide
- axis
- crankshaft
- connection mechanism
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Abstract
The utility model provides a connecting mechanism, which can avoid excessive friction of a sliding surface of a guide and achieve light weight of the guide. The connecting mechanism comprises: a guide member having one end rotatably supported by the first member centering on a first axis, the guide member extending in a direction orthogonal to the first axis; and a slider including a sliding portion supported by an outer peripheral portion of the guide, and a coupling portion extending from the sliding portion toward a direction orthogonal to the extending direction and the first axis, wherein the outer peripheral portion of the guide includes a plurality of circumferential face portions and a plurality of planar face portions on which a guide plate is provided.
Description
Technical Field
The present utility model relates to a connection mechanism.
Background
In order to ensure that more people can use energy which is perpetual and advanced, efforts are being made to develop methods for improving the efficiency of fuel use. In the conventional internal combustion engine structure, power is transmitted through a plurality of connection mechanisms. In order to avoid abrasion of the connection mechanism due to the swinging of the inertial force of the connection mechanism during operation, the inertial force needs to be further reduced, and the weight is required. The present utility model aims to solve the above problems and to maintain sufficient rigidity of a connection mechanism, and further, to achieve efficiency of energy use.
Disclosure of Invention
The utility model provides a connecting mechanism, which can avoid excessive friction of a sliding surface of a guide and achieve light weight of the guide.
The connecting mechanism of the utility model comprises: a guide member having one end rotatably supported by the first member centering on a first axis, the guide member extending in a direction orthogonal to the first axis; and a slider including a sliding portion supported by an outer peripheral portion of the guide and sliding along an extending direction of the guide, and a coupling portion extending from the sliding portion toward a direction orthogonal to the extending direction and the first axis, the coupling portion being rotatably connected to a second member about a second axis, the second axis being parallel to the first axis and offset in the extending direction with respect to a center of the coupling portion, the outer peripheral portion of the guide including a plurality of circumferential face portions provided on opposite sides on the outer peripheral portion and sliding relatively in abutment with the sliding portion of the slider, and a plurality of flat face portions provided between the plurality of circumferential face portions and on which a guide plate is provided.
In an embodiment of the utility model, the guide plate has a lower hardness than the plurality of planar portions.
In an embodiment of the utility model, the guide plate is integrally formed with the plurality of planar portions.
In an embodiment of the utility model, the connection mechanism is provided in an internal combustion engine including: an engine body formed with a cylinder extending in a longitudinal direction and a crank chamber provided below and to a side of the cylinder; a piston slidably disposed within the cylinder; a crankshaft rotatably supported by the engine body; a coupling element connected to the connection mechanism and rotatably supported by the crankshaft; a connecting rod connected to the piston and one end of the coupling element; a sub-crankshaft provided above the crankshaft and rotatably supported by the engine body; and a sub-connecting rod connected to the sub-crankshaft and the connecting mechanism, wherein the guide is rotatably supported by the engine body as the first member, and the guide is connected to the sub-crankshaft through the sub-connecting rod, and the connecting portion of the slider is rotatably connected to the other end of the coupling element as the second member.
In an embodiment of the utility model, the guide is arranged above the rotational axis of the crankshaft.
In an embodiment of the utility model, the guide extends above the coupling element in a direction orthogonal to the longitudinal direction and the rotation axis.
Based on the above, in the connecting mechanism of the present utility model, the guide is formed in a non-cylindrical shape, that is, the region that does not affect the rigidity is cut (flat surface portion), and only the contact surface (circumferential surface portion) necessary for the slider is left, thereby achieving weight reduction. Further, by providing the guide plate on the planar portion, damage caused by collision of the planar portion of the guide with the slider can be further avoided. Accordingly, the connecting mechanism can avoid excessive friction of the sliding surface of the guide piece, and the guide piece is light.
In order to make the above features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1A is a schematic diagram of a connection mechanism according to an embodiment of the present utility model.
FIG. 1B is a cross-sectional view of the connection mechanism of FIG. 1A taken along line A-A.
Fig. 2 is a schematic view of the connection mechanism of fig. 1 applied to an internal combustion engine.
Fig. 3A is a schematic view of a connection mechanism according to another embodiment of the present utility model.
Fig. 3B is a cross-sectional view of the connection mechanism of fig. 3A taken along line B-B.
Description of the reference numerals
1: an internal combustion engine;
10: an engine body (first member);
12: a cylinder;
14: a crank chamber;
20: a piston;
30: a connecting rod;
40: a coupling element (second component);
50: a crankshaft;
60: an auxiliary connecting rod;
70: a secondary crankshaft;
100. 100A: a connecting mechanism;
110: a guide;
112: an outer peripheral portion;
112a: a circumferential face portion;
112b: a planar portion;
114. 114A: a guide plate;
120: a slider;
122: a sliding part;
124: a connecting part;
a1: a first axis;
a2: a second axis;
RA: an axis of rotation;
x: a left-right direction;
y: a front-rear direction;
z: up-down direction (longitudinal direction).
Detailed Description
FIG. 1A is a schematic diagram of a connection mechanism according to an embodiment of the present utility model. FIG. 1B is a cross-sectional view of the connection mechanism of FIG. 1A taken along line A-A. Fig. 2 is a schematic view of the connection mechanism of fig. 1 applied to an internal combustion engine. In the present embodiment, the connection mechanism 100 is used as a power transmission member of the internal combustion engine 1, but the present utility model is not limited thereto, and may be applied to any other device that requires connection or power transmission. The horizontal direction X, the front-rear direction Y, the up-down direction Z, and the like in the drawings are not intended to limit the positional relationship of the respective members in the present utility model. Unless otherwise specified, the right, front and upper directions used in the following description are the directions indicated by the left-right direction X, front-rear direction Y and up-down direction Z arrows, and the left, rear and lower directions used in the description are the opposite directions. The specific structure of the connection mechanism 100 of the present embodiment and its application will be described below with reference to fig. 1A to 2.
Referring to fig. 1A, in the present embodiment, the connection mechanism 100 includes a guide 110 and a slider 120. One end of the guide 110 is rotatably supported by a first member (engine body 10 described later) centering on a first axis A1, and the guide 110 extends in a direction orthogonal to the first axis A1, that is, in a left-right direction X of fig. 1A. The slider 120 is sleeved on the outer periphery of the guide 110, and the slider 120 includes a sliding portion 122 and a connecting portion 124. The sliding portion 122 is provided around the outer peripheral portion 112 of the guide 110 and supported by the outer peripheral portion 112, and the sliding portion 122 slides along the extending direction of the guide 110. The coupling portion 124 extends from the sliding portion 122 toward a direction orthogonal to the extending direction of the guide and the first axis A1, that is, along a direction away from the guide 110 in the up-down direction Z of fig. 1A, but the present utility model is not limited thereto. The coupling portion 124 is rotatably connected to a second member (coupling element 40 described below) around a second axis A2. The second axis A2 is offset in the extending direction with respect to the center of the connecting portion 124, that is, the second axis A2 is not located at the center of the connecting portion 124. The second axis A2 is parallel to the first axis A1.
Referring to fig. 1B, in the present embodiment, the outer peripheral portion 112 of the guide 110 includes a plurality of circumferential surface portions 112a and a plurality of planar portions 112B. The number of the circumferential surface portions 112a is exemplified as two, and is provided on opposite sides of the outer peripheral portion 112, for example, opposite sides in the up-down direction Z of the outer peripheral portion 112, but the utility model is not limited thereto. The plurality of circumferential surface portions 112a are in contact with the sliding portions 122 of the slider 120 and slide relatively. In addition, the number of the plurality of flat portions 112b is exemplified as two, and are provided between the plurality of circumferential surface portions 112a, that is, on opposite sides in the front-rear direction Y of the outer peripheral portion 112, but the present utility model is not limited thereto. In other words, the portion of the guide 110 abutting the slider 120 is the circumferential surface portion 112a, and the portion of the guide 110 distant from the slider 120 is the flat surface portion 112b. The guide plate 114 is disposed on the plurality of plane portions 112b to fill the gap between the guide 110 and the slider 120.
As is clear from this, in the connection mechanism 100 of the present embodiment, the guide 110 is formed in a non-cylindrical shape, that is, the region that does not affect the rigidity is cut (the flat surface portion 112 b), and only the contact surface (the circumferential surface portion 112 a) necessary for the slider 120 is left, thereby achieving weight reduction. Further, by providing the guide plate 114 on the flat surface portion 112b, damage caused by the collision of the flat surface portion 112b of the guide 110 with the slider 120 can be further avoided. Accordingly, the connecting mechanism 100 of the present embodiment can avoid excessive friction on the sliding surface of the guide 110, and achieve weight reduction of the guide 110.
Further, the guide plate 114 may be fixed to the flat portion 112b of the guide 110 by a screw or the like, or may be integrally formed with the flat portion 112b, but the present utility model is not limited thereto. In the present embodiment, since the guide plate 114 is provided on the flat surface portion 112b by a screw, the material of the guide plate 114 can be freely selected. Preferably, the guide plate 114 has a lower hardness than the planar portion 112b. Thus, the guide plate 114 can provide better buffering effect and abrasion resistance to reduce maintenance cost. In order to keep the guide 110 lightweight, the guide plate 114 may be made of a lightweight material.
The following is a further explanation of a specific structure in which the connection mechanism 100 is applied to the internal combustion engine 1.
Referring to fig. 2, in the present embodiment, a connection mechanism 100 is provided in an internal combustion engine 1, and the internal combustion engine 1 includes an engine body 10, a piston 20, a connecting rod 30, a coupling element 40, a crankshaft 50, a sub-connecting rod 60, and a sub-crankshaft 70. The engine body 10 includes a cylinder 12 extending in the vertical direction Z (longitudinal direction), and a crank chamber 14 provided below and beside the cylinder 12. The piston 20 is slidably disposed within the cylinder 12. The connecting rod 30 is connected to one end (for example, right end) of the piston 20 and the coupling element 40. The coupling element 40 is connected to the connection mechanism 100 and is rotatably supported by the crankshaft 50. The crankshaft 50 is provided in the crank chamber 14 and rotatably supported by the engine body 10. The sub-connecting rod 60 is connected to the sub-crankshaft 70 and the connecting mechanism 100. The sub-crankshaft 70 is provided above the crankshaft 50 and is rotatably supported by the engine body 10.
Further, in the present embodiment, the guide 110 is rotatably supported by the engine body 10 as the first member. The guide 110 is rotatably fixed to the engine body 10 around a first axis A1, wherein the first axis A1 is disposed at one end (for example, the right end) of the guide 110, but the embodiment is not limited thereto. The sub-connecting rod 60 is connected to the other end (e.g., left end) of the guide 110, and the guide 110 is connected to the sub-crankshaft 70 through the sub-connecting rod 60 to conduct power of the crankshaft 50. The coupling portion 124 of the slider 120 is rotatably connected to the other end (for example, left end) of the coupling element 40 as the second member. Further, the guide 110 is disposed above the rotation axis RA of the crankshaft 50. The guide 110 extends above the coupling element 40 in a direction (substantially, the left-right direction X) orthogonal to the up-down direction Z (longitudinal direction) and the rotation axis RA.
Fig. 3A is a schematic view of a connection mechanism according to another embodiment of the present utility model. Fig. 3B is a cross-sectional view of the connection mechanism of fig. 3A taken along line B-B. The specific structure and application of the connection mechanism 100A of the present embodiment will be described below with reference to fig. 3A and 3B.
In the present embodiment, the connection mechanism 100A is largely the same as the connection mechanism 100, except that the guide plate 114A is integrally formed with the plurality of planar portions 112b. Specifically, the guide plate 114A protrudes from the planar portion 112b in the front-rear direction Y in a direction away from the guide 110 to abut against the slider 120. Thus, the guide plate 114A can also prevent damage caused by collision with the slider 120, and can reduce the number of assembly steps.
As described above, in the connecting mechanism of the present utility model, the guide is formed in a non-cylindrical shape, that is, the region that does not affect the rigidity is cut (flat surface portion), and only the contact surface (circumferential surface portion) necessary for the slider is maintained, thereby achieving weight reduction. Further, by providing the guide plate on the planar portion, damage caused by collision of the planar portion of the guide with the slider can be further avoided. Preferably, the guide plate may be made of a material having a lower hardness than the flat portion. Thus, the guide plate can provide better buffering effect and abrasion resistance so as to reduce maintenance cost. Accordingly, the connecting mechanism can avoid excessive friction of the sliding surface of the guide piece, and the guide piece is light.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. A connection mechanism, comprising:
a guide member having one end rotatably supported by the first member centering on a first axis, the guide member extending in a direction orthogonal to the first axis; and
a slider including a sliding portion supported by an outer peripheral portion of the guide and sliding along an extending direction of the guide, and a connecting portion extending from the sliding portion in a direction orthogonal to the extending direction of the guide and the first axis, and
the connecting portion is rotatably connected to a second member about a second axis parallel to the first axis and offset in the extending direction with respect to the center of the connecting portion, wherein
The outer peripheral portion of the guide includes a plurality of circumferential face portions and a plurality of planar face portions,
the plurality of circumferential surface portions are provided on opposite sides of the outer circumferential portion, and the plurality of circumferential surface portions are abutted against the sliding portion of the slider to slide relatively,
the plurality of planar portions are disposed between the plurality of circumferential portions,
the guide plate is disposed on the plurality of planar portions.
2. The connection mechanism according to claim 1, wherein,
the guide plate has a hardness lower than that of the plurality of planar portions.
3. The connection mechanism according to claim 1, wherein,
the guide plate is integrally formed with the plurality of planar portions.
4. The connection mechanism according to claim 1, wherein,
the connecting mechanism is arranged in an internal combustion engine, and the internal combustion engine comprises:
an engine body formed with a cylinder extending in a longitudinal direction and a crank chamber provided below and to a side of the cylinder;
a piston slidably disposed within the cylinder;
a crankshaft rotatably supported by the engine body;
a coupling element connected to the connection mechanism and rotatably supported by the crankshaft;
a connecting rod connected to the piston and one end of the coupling element;
a sub-crankshaft provided above the crankshaft and rotatably supported by the engine body; and
a secondary connecting rod connected to the secondary crankshaft and the connecting mechanism, wherein
The guide is rotatably supported by the engine body as the first member, and the guide is connected with the sub crankshaft through the sub connecting rod,
the connecting portion of the slider is rotatably connected to the other end of the coupling element as the second member.
5. The connection mechanism according to claim 4, wherein,
the guide is disposed above the rotational axis of the crankshaft.
6. The connection mechanism according to claim 5, wherein,
the guide extends above the coupling element in a direction orthogonal to the longitudinal direction and the rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320109621.8U CN219492403U (en) | 2023-01-17 | 2023-01-17 | Connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320109621.8U CN219492403U (en) | 2023-01-17 | 2023-01-17 | Connecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492403U true CN219492403U (en) | 2023-08-08 |
Family
ID=87506311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320109621.8U Active CN219492403U (en) | 2023-01-17 | 2023-01-17 | Connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219492403U (en) |
-
2023
- 2023-01-17 CN CN202320109621.8U patent/CN219492403U/en active Active
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