One-way transmission device, turning gear and diesel engine

Abstract

The application discloses a one-way transmission device, a turning gear and a diesel engine. The one-way transmission device comprises a driving assembly, a first transmission assembly and a second transmission assembly. The first transmission assembly is connected with the driving assembly, the second transmission assembly is connected with the first transmission assembly, and the first transmission assembly unidirectionally transmits power to a flywheel through the second transmission assembly. The driving assembly can drive the first transmission assembly to rotate, the first transmission assembly can drive the second transmission assembly to rotate when rotating, thereby transmitting power to the second transmission assembly, and the second transmission assembly can finally transmit power to the flywheel to realize normal operation of a turning process. Since the second transmission assembly can only unidirectionally transmit power, when power input of the driving assembly stops, the flywheel can realize synchronous stopping effect, and can avoid self-rotation caused by unbalanced force of a crankshaft due to various internal and external factors, thereby facilitating work and effectively reducing the probability of accidents.

Description

Technical Field

[0001] This application relates to the field of turning gear structure technology, and in particular to a one-way transmission device, a turning gear and a diesel engine. Background Technology

[0002] Large diesel engines require a one-way drive to restart after prolonged shutdown. In actual use, the one-way drive needs to rotate the diesel engine's flywheel, while simultaneously preventing the flywheel from transmitting power in the opposite direction. However, due to various internal and external factors, current diesel engine flywheels are prone to self-rotation, which is detrimental to the normal operation of the one-way drive and can easily lead to accidents. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a one-way transmission device that can transmit power in one direction through a worm gear and a worm shaft.

[0004] This application proposes a turning gear having the aforementioned one-way transmission device. This application also proposes a diesel engine having the aforementioned turning gear.

[0005] According to a first aspect embodiment of the present application, the unidirectional transmission device includes a drive component, a first transmission component, and a second transmission component; the first transmission component is connected to the drive component, and the drive component is used to drive the first transmission component to rotate; the second transmission component is connected to the first transmission component, and the first transmission component is used to drive the second transmission component to rotate, the second transmission component is used to drive a flywheel to rotate, and the first transmission component transmits power unidirectionally to the flywheel through the second transmission component.

[0006] The unidirectional transmission device according to the embodiments of this application has at least the following beneficial effects: the drive component can drive the first transmission component to rotate, and when the first transmission component rotates, it can drive the second transmission component to rotate, thereby transmitting power to the second transmission component. The second transmission component can ultimately transmit power to the flywheel to achieve normal operation of the cranking process. Since the second transmission component can only transmit power in one direction, when the power input of the drive component stops, the flywheel can achieve a synchronous stop effect, and can avoid the situation where the crankshaft rotates due to unbalanced forces caused by various internal and external factors. This facilitates operation and effectively reduces the probability of accidents.

[0007] According to some embodiments of this application, the second transmission assembly includes a worm gear and a worm that mesh with each other. The worm is connected to the first transmission assembly, and the drive assembly drives the worm and the worm gear to rotate through the first transmission assembly, thereby driving the flywheel to rotate.

[0008] According to some embodiments of this application, the lead angle of the worm is smaller than the equivalent friction angle between the worm wheel and the meshing teeth of the worm.

[0009] According to some embodiments of this application, the first transmission component includes a first gear and a second gear that mesh with each other. The first gear is connected to the output end of the drive component, and the drive component is used to drive the first gear to rotate so as to drive the second gear to rotate.

[0010] According to some embodiments of this application, the second gear and the worm are coaxially arranged, and the second gear drives the worm and the worm wheel to rotate by rotating.

[0011] According to some embodiments of this application, the one-way transmission device further includes a third transmission component, which is disposed between the flywheel and the worm gear. The worm gear drives the third transmission component to rotate by rotating, thereby driving the flywheel to rotate.

[0012] According to some embodiments of this application, the third transmission component includes a third gear that meshes with a flywheel, and the worm gear is provided with a second transmission shaft, with the third gear connected to the second transmission shaft.

[0013] According to some embodiments of this application, the second drive shaft is fitted with a sleeve, which is used to position the third gear.

[0014] According to a second aspect embodiment of this application, the turning gear includes the aforementioned one-way drive device.

[0015] The crankshaft turning machine according to the embodiments of this application has at least the following beneficial effects: The one-way transmission device of the first aspect embodiment of this application includes a drive component, a first transmission component, and a second transmission component. The drive component can drive the first transmission component to rotate. When the first transmission component rotates, it can drive the second transmission component to rotate, thereby transmitting power to the second transmission component. The second transmission component can ultimately transmit power to the flywheel to achieve normal operation of the crankshaft turning process. Since the second transmission component can only transmit power in one direction, when the power input of the drive component stops, the flywheel can achieve a synchronous stop effect, and can avoid the situation where the crankshaft rotates due to unbalanced forces caused by various internal and external factors. This facilitates operation and effectively reduces the probability of accidents.

[0016] According to a third aspect embodiment of this application, the diesel engine includes the aforementioned turning gear.

[0017] The diesel engine according to the embodiments of this application has at least the following beneficial effects: The one-way transmission device of the first aspect of this application includes a drive assembly, a first transmission assembly, and a second transmission assembly. The drive assembly can drive the first transmission assembly to rotate, and when the first transmission assembly rotates, it can drive the second transmission assembly to rotate, thereby transmitting power to the second transmission assembly. The second transmission assembly can ultimately transmit power to the flywheel to achieve normal operation during the cranking process. Since the second transmission assembly can only transmit power in one direction, when the power input of the drive assembly stops, the flywheel can achieve a synchronous stop effect, and it can avoid the situation where the crankshaft rotates due to unbalanced forces caused by various internal and external factors. This facilitates operation and effectively reduces the probability of accidents.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The present application will be further illustrated below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments illustrated in the following drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application.

[0020] Figure 1 This is a schematic diagram of the structure of the one-way transmission device according to an embodiment of this application.

[0021] Figure label:

[0022] 101. Driver components;

[0023] 201. First gear; 202. Second gear;

[0024] 301. Worm gear; 302. Worm wheel;

[0025] 401. Third gear; 402. Second drive shaft; 403. Sleeve; 404. Flywheel. Detailed Implementation

[0026] The embodiments of this application are described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, it should be understood that the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0028] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] like Figure 1As shown, this application embodiment provides a one-way transmission device, which includes a drive assembly 101, a first transmission assembly, and a second transmission assembly. The drive assembly 101 drives the first transmission assembly to move, thereby transmitting the power output by the drive assembly 101 to the first transmission assembly. Furthermore, as the first transmission assembly moves, it drives the second transmission assembly to move, thereby transmitting the power output by the drive assembly 101 to the second transmission assembly. Simultaneously, as the second transmission assembly moves, it can directly or indirectly drive the flywheel 404 of the diesel engine to rotate, thereby completing the turning operation of the diesel engine.

[0032] It is worth noting that the second transmission assembly can only transmit power in one direction. That is, the drive assembly 101 can transmit power to the flywheel 404 through the second transmission assembly, but the flywheel 404 cannot transmit power in the opposite direction through the second transmission assembly. Therefore, when the power input of the drive assembly 101 stops, the flywheel 404 can stop synchronously, and can avoid the situation where the crankshaft rotates due to the imbalance of forces caused by various internal and external factors. This facilitates operation and effectively reduces the probability of accidents.

[0033] The contents of this application are described in detail below with reference to specific embodiments. It should be noted that the following description is merely illustrative and not a specific limitation of this application.

[0034] In some examples, both the first and second transmission components are rotating structures, therefore the drive assembly 101 adopts a structure capable of outputting torque. Specifically, the drive assembly 101 is a motor.

[0035] The drive assembly 101 drives the first transmission assembly to rotate, which in turn drives the second transmission assembly to rotate. Finally, the second transmission assembly directly or indirectly drives the flywheel 404 of the diesel engine to rotate, thereby realizing the turning operation of the diesel engine.

[0036] like Figure 1 As shown, in some examples, the second transmission assembly includes a worm gear 302 and a worm 301, which mesh with each other to form a worm gear pair.

[0037] In the worm gear pair, the worm 301 is the driving element. The drive assembly 101 drives the first transmission assembly to rotate, which in turn drives the worm 301 to rotate, thereby driving the worm wheel 302 to rotate synchronously. The worm wheel 302 ultimately transmits the power output from the drive assembly 101 to the flywheel 404, thereby driving the flywheel 404 to rotate.

[0038] In some examples, the worm 301 of this application can drive the worm wheel 302 to rotate, but the worm wheel 302 of this application cannot drive the worm 301 to rotate. Therefore, under the limiting effect of the worm gear pair, the power output by the drive assembly 101 can only be transmitted unidirectionally to the flywheel 404, and when the drive assembly 101 stops, the flywheel 404 cannot rotate on its own.

[0039] In some examples, the lead angle of the worm 301 is smaller than the equivalent friction angle between the meshing teeth of the worm wheel 302 and the worm 301, thereby enabling the worm 301 to drive the worm wheel 302 to rotate, while the worm wheel 302 cannot drive the worm 301 to rotate.

[0040] like Figure 1 As shown, in some examples, the first transmission component includes a first gear 201 and a second gear 202. The first gear 201 and the second gear 202 can be cylindrical gears or bevel gears, as long as the first gear 201 and the second gear 202 mesh.

[0041] The first gear 201 is connected to the output end of the drive assembly 101. When the drive assembly 101 outputs torque, it can drive the first gear 201 to rotate, and the first gear 201 drives the second gear 202 to rotate synchronously.

[0042] In some examples, the second gear 202 and the worm 301 are connected as a single unit via a first drive shaft, and the second gear 202 and the worm 301 are coaxially arranged. It is understood that the drive assembly 101 drives the first gear 201 to rotate the second gear 202, and during the rotation of the second gear 202, the worm 301 also rotates synchronously, thereby driving the worm wheel 302 to rotate.

[0043] It is understandable that the first transmission component can also adopt a belt drive, chain drive, or other structural forms. When the first transmission component adopts a belt drive structure, pulleys are provided at the output end of the drive component 101 and on the first transmission shaft; when the first transmission component adopts a chain drive structure, sprockets are provided at the output end of the drive component 101 and on the first transmission shaft.

[0044] In some examples, the one-way transmission device also includes a third transmission component, which is disposed between the flywheel 404 and the worm gear 302. The worm gear 302 indirectly drives the flywheel 404 to rotate through the third transmission component, thereby realizing the turning operation of the diesel engine.

[0045] like Figure 1 As shown, in some examples, when the outer periphery of the flywheel 404 is provided with teeth, the third transmission assembly includes a third gear 401, which meshes with the flywheel 404.

[0046] The worm gear 302 is equipped with a second drive shaft 402, and a third gear 401 is connected to the second drive shaft 402, so that the worm gear 302 and the third gear 401 form a whole. When the worm gear 302 rotates, the worm gear 302 drives the third gear 401 to rotate synchronously, and the third gear 401 drives the flywheel 404 to rotate.

[0047] In some examples, the second drive shaft 402 is fitted with a sleeve 403, and the axial position of the sleeve 403 on the second drive shaft 402 is determined. When the third gear 401 abuts against the sleeve 403, the axial position of the third gear 401 on the second drive shaft 402 is fixed, which facilitates the meshing of the third gear 401 with the flywheel 404.

[0048] This application provides a turning gear, which includes the aforementioned one-way transmission device. Additionally, this application also provides a diesel engine, which includes the aforementioned turning gear.

[0049] In actual implementation, the drive assembly 101 drives the first transmission assembly to rotate. When the first transmission assembly rotates, it drives the second transmission assembly to rotate accordingly, thus transmitting power to the second transmission assembly. The second transmission assembly ultimately delivers power to the flywheel 404, ensuring smooth operation of the crankshaft. Since the worm gear 302 and worm 301 of the second transmission assembly only support unidirectional power transmission, when the power supply to the drive assembly 101 is interrupted, the flywheel 404 can stop immediately and synchronously, effectively preventing unexpected self-rotation caused by crankshaft imbalance due to internal or external factors. This design improves operational convenience and significantly reduces the risk of safety accidents.

[0050] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A unidirectional transmission device, characterized in that, include: Driver components; A first transmission assembly is connected to the drive assembly, and the drive assembly is used to drive the first transmission assembly to rotate. The second transmission component is connected to the first transmission component. The first transmission component is used to drive the second transmission component to rotate, and the second transmission component is used to drive the flywheel to rotate. The first transmission component transmits power to the flywheel in one direction through the second transmission component.

2. The unidirectional transmission device according to claim 1, characterized in that, The second transmission assembly includes a worm gear and a worm that mesh with each other. The worm is connected to the first transmission assembly. The drive assembly drives the worm and the worm gear to rotate through the first transmission assembly, thereby driving the flywheel to rotate.

3. The unidirectional transmission device according to claim 2, characterized in that, The lead angle of the worm is less than the equivalent friction angle between the worm wheel and the meshing teeth of the worm.

4. The unidirectional transmission device according to claim 2, characterized in that, The first transmission component includes a first gear and a second gear that mesh with each other. The first gear is connected to the output end of the drive component, and the drive component is used to drive the first gear to rotate, thereby driving the second gear to rotate.

5. The unidirectional transmission device according to claim 4, characterized in that, The second gear and the worm are coaxially arranged, and the second gear drives the worm and the worm wheel to rotate by rotating.

6. The unidirectional transmission device according to claim 2, characterized in that, The unidirectional transmission device further includes a third transmission component, which is disposed between the flywheel and the worm gear. The worm gear drives the third transmission component to rotate by rotating, thereby driving the flywheel to rotate.

7. The unidirectional transmission device according to claim 6, characterized in that, The third transmission component includes a third gear that meshes with a flywheel, and the worm gear is provided with a second transmission shaft, with the third gear connected to the second transmission shaft.

8. The unidirectional transmission device according to claim 7, characterized in that, The second drive shaft is fitted with a sleeve, which is used to position the third gear.

9. A turning gear machine, characterized in that, Includes the unidirectional transmission device as described in any one of claims 1 to 8.

10. A diesel engine, characterized in that, Including the turning gear machine as described in claim 9.

Images