Flexible transmission structure on crankcase

Abstract

The utility model discloses a flexible transmission structure on a crankcase, which comprises a first transmission wheel, a second transmission wheel, a third transmission wheel, a fourth transmission wheel, a first tensioning wheel and a second tensioning wheel, the third transmission wheel is coaxially and fixedly connected to the power input end of the oil pump, the fourth transmission wheel is coaxially and fixedly connected to the power input end of the oil injector, a first flexible element is wound outside the first tensioning wheel, the first transmission wheel and the third transmission wheel, and a second flexible element is wound outside the second tensioning wheel, the second transmission wheel and the fourth transmission wheel. According to the utility model, the first tensioning wheel and the second tensioning wheel can respectively tension the first flexible element and the second flexible element, so that the stable work of the oil pump and the oil injector can be ensured on the premise that the first flexible element and the second flexible element are not replaced.

Description

Technical Field

[0001] This utility model belongs to the field of flexible transmission technology, and in particular relates to a flexible transmission structure on a crankcase. Background Technology

[0002] Flexible transmission is a transmission method that uses flexible elements such as belts or chains to transmit motion and power. Because it absorbs vibration loads and dampens vibration effects, it offers the advantage of smooth transmission. However, after a period of operation, the flexible elements in existing crankcase flexible transmission structures will loosen due to plastic deformation, necessitating their replacement. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a flexible transmission structure on the crankcase, which enables both the oil pump and the oil injector to work stably.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A flexible transmission structure for a crankcase, comprising:

[0006] The first transmission wheel is coaxially and fixedly connected to the power output end of the crankshaft;

[0007] The second transmission wheel is coaxially and fixedly connected to the power output end of the crankshaft;

[0008] The third transmission wheel is coaxially and fixedly connected to the power input end of the oil pump;

[0009] The fourth drive wheel is coaxially and fixedly connected to the power input end of the oiler;

[0010] The first tensioning wheel, the first transmission wheel, and the third transmission wheel are all provided with a first flexible element.

[0011] The second tensioning wheel, the second transmission wheel, and the fourth transmission wheel are all provided with a second flexible element.

[0012] The first drive wheel, the second drive wheel, the third drive wheel, the fourth drive wheel, the first tension wheel, and the second tension wheel are all rotatably connected to the crankcase.

[0013] The beneficial effects of adopting the above technical solution are as follows: the crankshaft can output power, which provides power to the oil pump on the one hand by relying on the first transmission wheel, the first flexible element and the third transmission wheel, and provides power to the oil injector on the other hand by relying on the second transmission wheel, the second flexible element and the fourth transmission wheel; at the same time, the first tension wheel and the second tension wheel can respectively tension the first flexible element and the second flexible element, so as to ensure that the oil pump and the oil injector work stably without replacing the first flexible element and the second flexible element.

[0014] Furthermore, the first drive wheel and the second drive wheel have different axial positions, the first drive wheel, the third drive wheel and the first tension wheel have the same axial position, and the second drive wheel, the fourth drive wheel and the second tension wheel have the same axial position.

[0015] The beneficial effects of adopting the above technical solution are as follows: This arrangement ensures that the first transmission wheel, the third transmission wheel, and the first tensioning wheel are located in the same axial position, which is conducive to the smooth operation of the first flexible element; this arrangement also ensures that the second transmission wheel, the fourth transmission wheel, and the second tensioning wheel are located in the same axial position, which is conducive to the smooth operation of the second flexible element; at the same time, this arrangement also ensures that the first flexible element and the second flexible element are located in two different axial spaces, thereby avoiding interference between the first flexible element and the second flexible element.

[0016] Furthermore, the flexible transmission structure on the crankcase includes a first connecting flange detachably connected to the crankcase, and a first tensioner is rotatably connected to the first connecting flange.

[0017] The beneficial effect of adopting the above technical solution is that this setting makes it convenient to install the first tensioning wheel in the corresponding position.

[0018] Furthermore, the first connecting flange is bolted to the crankcase.

[0019] Furthermore, the flexible transmission structure on the crankcase includes a second connecting flange detachably connected to the crankcase, and a second tensioning wheel is rotatably connected to the second connecting flange.

[0020] The beneficial effect of adopting the above technical solution is that this setting makes it convenient to install the second tensioning wheel in the corresponding position.

[0021] Furthermore, the second connecting flange is bolted to the crankcase.

[0022] Furthermore, the first drive wheel, the third drive wheel, and the first tension wheel are all sprockets, and the first flexible element is a chain.

[0023] Furthermore, the first drive wheel, the third drive wheel, and the first tension wheel are all pulleys, and the first flexible element is a belt.

[0024] Furthermore, the second drive wheel, the fourth drive wheel, and the second tension wheel are all sprockets, and the second flexible element is a chain.

[0025] Furthermore, the second drive wheel, the fourth drive wheel, and the second tension wheel are all pulleys, and the second flexible element is a belt.

[0026] The beneficial effects of this utility model are as follows:

[0027] The crankshaft can output power, providing power to the oil pump on one hand through the first drive wheel, the first flexible element and the third drive wheel, and to the oil injector on the other hand through the second drive wheel, the second flexible element and the fourth drive wheel. At the same time, the first tension wheel and the second tension wheel can tension the first flexible element and the second flexible element respectively, so as to ensure that the oil pump and the oil injector can work stably without replacing the first flexible element and the second flexible element. Attached Figure Description

[0028] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein:

[0029] Figure 1 A schematic diagram of the structure of one embodiment of the present invention is shown;

[0030] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0031] Figure label:

[0032] 1-First drive wheel, 2-Second drive wheel, 3-Third drive wheel, 4-Fourth drive wheel, 5-First tension wheel, 6-Second tension wheel, 7-First flexible element, 8-Second flexible element, 9-First connecting flange, 10-Second connecting flange. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] This utility model provides a flexible transmission structure on a crankcase, such as Figure 1 As shown, it includes:

[0035] The first transmission wheel 1 is coaxially and fixedly connected to the power output end of the crankshaft;

[0036] The second transmission wheel 2 is coaxially and fixedly connected to the power output end of the crankshaft;

[0037] The third transmission wheel 3 is coaxially and fixedly connected to the power input end of the oil pump;

[0038] The fourth transmission wheel 4 is coaxially and fixedly connected to the power input end of the oiler;

[0039] The first tensioning wheel 5, the first transmission wheel 1 and the third transmission wheel 3 are all provided with a first flexible element 7.

[0040] The second tensioning wheel 6, the second transmission wheel 2 and the fourth transmission wheel 4 are provided with a second flexible element 8 around their outer sides;

[0041] Among them, the first transmission wheel 1, the second transmission wheel 2, the third transmission wheel 3, the fourth transmission wheel 4, the first tension wheel 5, and the second tension wheel 6 are all rotatably connected to the crankcase.

[0042] Understandably, the crankshaft can output power, providing power to the oil pump on the one hand through the first transmission wheel 1, the first flexible element 7, and the third transmission wheel 3, and to the oil injector on the other hand through the second transmission wheel 2, the second flexible element 8, and the fourth transmission wheel 4. At the same time, the first tension wheel 5 and the second tension wheel 6 can respectively tension the first flexible element 7 and the second flexible element 8, so as to ensure that the oil pump and the oil injector work stably without replacing the first flexible element 7 and the second flexible element 8.

[0043] In one embodiment, the axial positions of the first transmission wheel 1 and the second transmission wheel 2 are different, the axial positions of the first transmission wheel 1, the third transmission wheel 3 and the first tension wheel 5 are the same, and the axial positions of the second transmission wheel 2, the fourth transmission wheel 4 and the second tension wheel 6 are the same.

[0044] Understandably, this arrangement ensures that the first transmission wheel 1, the third transmission wheel 3, and the first tension wheel 5 are located in the same axial position, which is beneficial for the smooth operation of the first flexible element 7. This arrangement also ensures that the second transmission wheel 2, the fourth transmission wheel 4, and the second tension wheel 6 are located in the same axial position, which is beneficial for the smooth operation of the second flexible element 8. At the same time, this arrangement also ensures that the first flexible element 7 and the second flexible element 8 are located in two different axial spaces, thereby avoiding interference between the first flexible element 7 and the second flexible element 8.

[0045] In one embodiment, the flexible transmission structure on the crankcase includes a first connecting flange 9 detachably connected to the crankcase, and a first tensioning wheel 5 rotatably connected to the first connecting flange 9 to facilitate the installation of the first tensioning wheel 5 in a corresponding position; the flexible transmission structure on the crankcase includes a second connecting flange 10 detachably connected to the crankcase, and a second tensioning wheel 6 rotatably connected to the second connecting flange 10 to facilitate the installation of the second tensioning wheel 6 in a corresponding position.

[0046] In one embodiment, the first connecting flange 9 is bolted to the crankcase; the second connecting flange 10 is bolted to the crankcase.

[0047] It should be noted that the first tensioning roller 5 is eccentrically set on the first connecting flange 9, and the second tensioning roller 6 is eccentrically set on the second connecting flange 10. The first connecting flange 9 and the second connecting flange 10 can be rotated and adjusted according to the slack of the first flexible element 7 and the second flexible element 8, so as to adjust the position of the first tensioning roller 5 and the second tensioning roller 6, thereby ensuring the tensioning effect of the first tensioning roller 5 and the second tensioning roller 6.

[0048] In one embodiment, the first drive wheel 1, the third drive wheel 3, and the first tension wheel 5 may all be sprockets or pulleys, and correspondingly, the first flexible element 7 is a chain or belt; the second drive wheel 2, the fourth drive wheel 4, and the second tension wheel 6 may all be sprockets or pulleys, and correspondingly, the second flexible element 8 is a chain or belt.

[0049] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A flexible transmission structure for a crankcase, characterized in that, include: The first transmission wheel (1) is coaxially and fixedly connected to the power output end of the crankshaft; The second transmission wheel (2) is coaxially fixedly connected to the power output end of the crankshaft; The third transmission wheel (3) is coaxially fixedly connected to the power input end of the oil pump; The fourth transmission wheel (4) is coaxially and fixedly connected to the power input end of the oiler; The first tensioning wheel (5), the first transmission wheel (1) and the third transmission wheel (3) are provided with a first flexible element (7) around their outer sides; The second tensioning wheel (6), the second transmission wheel (2) and the fourth transmission wheel (4) are provided with a second flexible element (8) around their outer sides; The first transmission wheel (1), the second transmission wheel (2), the third transmission wheel (3), the fourth transmission wheel (4), the first tension wheel (5), and the second tension wheel (6) are all rotatably connected to the crankcase.

2. The flexible transmission structure on a crankcase according to claim 1, characterized in that, The first transmission wheel (1) and the second transmission wheel (2) have different axial positions. The first transmission wheel (1), the third transmission wheel (3) and the first tension wheel (5) have the same axial position. The second transmission wheel (2), the fourth transmission wheel (4) and the second tension wheel (6) have the same axial position.

3. The flexible transmission structure on a crankcase according to claim 1, characterized in that, It includes a first connecting flange (9) detachably connected to the crankcase, on which the first tensioner (5) is rotatably connected.

4. The flexible transmission structure on a crankcase according to claim 3, characterized in that, The first connecting flange (9) is bolted to the crankcase.

5. The flexible transmission structure on a crankcase according to claim 1, characterized in that, It includes a second connecting flange (10) detachably connected to the crankcase, and a second tensioning wheel (6) is rotatably connected to the second connecting flange (10).

6. The flexible transmission structure on a crankcase according to claim 5, characterized in that, The second connecting flange (10) is bolted to the crankcase.

7. The flexible transmission structure on a crankcase according to claim 1, characterized in that, The first transmission wheel (1), the third transmission wheel (3) and the first tension wheel (5) are all sprockets, and the first flexible element (7) is a chain.

8. The flexible transmission structure on a crankcase according to claim 1, characterized in that, The first transmission wheel (1), the third transmission wheel (3) and the first tensioning wheel (5) are all belt pulleys, and the first flexible element (7) is a belt.

9. The flexible transmission structure on a crankcase according to claim 1, characterized in that, The second transmission wheel (2), the fourth transmission wheel (4) and the second tension wheel (6) are all sprockets, and the second flexible element (8) is a chain.

10. A flexible transmission structure for a crankcase according to claim 1, characterized in that, The second transmission wheel (2), the fourth transmission wheel (4) and the second tension wheel (6) are all pulleys, and the second flexible element (8) is a belt.

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