CN110360299B

CN110360299B - Gear, gear shifting mechanism and electric vehicle

Info

Publication number: CN110360299B
Application number: CN201910764698.7A
Authority: CN
Inventors: 陈红旭; 李健; 王立军; 隋立起; 田丰
Original assignee: Yibin Fengchuan Power Technology Co ltd
Current assignee: Yibin Fengchuan Power Technology Co ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2024-01-02
Anticipated expiration: 2039-08-19
Also published as: CN110360299A

Abstract

The embodiment of the invention provides a gear, a gear shifting mechanism and an electric vehicle, wherein an oil storage tank and an oil outlet tank which are communicated are arranged on one end face of the gear in the axial direction of the gear, the depth of the oil outlet tank is smaller than that of the oil storage tank, and one end of the oil outlet tank, which is far away from the oil storage tank, extends to the peripheral face of the gear. The lubrication effect between the gears meshed in the gear shifting structure can be improved, the service life of equipment is prolonged, and the cost is saved. The electric vehicle comprises a gear shifting mechanism, and has all the advantages of the gear shifting mechanism.

Description

Gear, gear shifting mechanism and electric vehicle

Technical Field

The invention relates to the field of vehicles, in particular to a gear, a gear shifting mechanism and an electric vehicle.

Background

At present, transmission gears in gear shifting mechanisms are lubricated by using lubricating grease, abrasion fragments of the gears can enter the lubricating grease in a long-term use process, and as the use time is prolonged, the solid lubricating grease can be denatured, so that the lubricating effect is reduced.

Disclosure of Invention

The aim of the invention consists, for example, in providing a gear, a gear shifting mechanism and an electric vehicle, which are capable of improving the lubrication effect between the gears engaged in the gear shifting mechanism, prolonging the service life of the device and saving the cost.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides a gear, wherein an oil storage tank and an oil outlet tank which are communicated are provided on an end face of the gear in an axial direction of the gear, the depth of the oil outlet tank is smaller than that of the oil storage tank, and one end of the oil outlet tank, which is far away from the oil storage tank, extends onto a peripheral surface of the gear.

In an alternative embodiment:

the gear is provided with the oil groove on the terminal surface of oil storage tank, and oil groove and oil storage tank intercommunication, the degree of depth of oil storage tank is greater than the degree of depth of oil feed groove.

In an alternative embodiment:

the oil inlet groove is arranged as an annular groove.

In an alternative embodiment:

the gear comprises a middle connecting part with a mounting hole, a transmission tooth part and a poking part, wherein the transmission tooth part and the poking part are connected with the peripheral surface of the middle connecting part and are distributed at intervals along the peripheral direction of the middle connecting part; the oil inlet groove is arranged on one end face of the middle connecting part, and the oil storage groove and the oil outlet groove are both arranged on one end face of the transmission tooth part.

In an alternative embodiment:

the gear comprises a middle connecting part with a mounting hole and a transmission tooth part connected with the peripheral surface of the middle connecting part; the oil inlet groove is arranged on one end face of the middle connecting part, and the oil storage groove and the oil outlet groove are both arranged on one end face of the transmission tooth part.

In an alternative embodiment:

one end of the oil outlet groove, which is far away from the oil storage groove, is communicated with the tooth groove of the gear.

In an alternative embodiment:

the gear is provided with a filter screen for filtering the lubricating liquid entering the oil outlet groove from the oil storage groove.

In an alternative embodiment:

the oil storage tank is provided with a first side communicated with the oil outlet tank and a second side communicated with the oil outlet tank, and the height of the filter screen on the first side is not lower than the end face where the notch of the oil inlet tank is positioned; the height of the filter screen positioned at the second side is not higher than the end face of the bottom of the oil outlet groove.

In a second aspect, an embodiment of the invention provides a shift mechanism comprising a gear according to any of the preceding embodiments.

In a third aspect, an embodiment of the invention provides an electric vehicle comprising a gear according to any one of the preceding embodiments or a gear shifting mechanism according to the preceding embodiments.

The beneficial effects of the embodiment of the invention include, for example:

in summary, this embodiment provides a gear, is provided with oil storage tank and play oil groove on the terminal surface of gear, has great frictional force between the intermeshing gear in gear drive process, and lubricating liquid flows in on the global of gear after entering into play oil groove from the oil storage tank for the meshing position department of intermeshing gear realizes lubricating. And the depth of the oil storage tank is greater than that of the oil outlet tank, part of lubricating liquid can be stored in the oil storage tank, so that at the initial stage of mechanism operation, even if the lubricating liquid does not enter the oil storage tank, the gears meshed with each other can be lubricated through the lubricating liquid stored in the oil storage tank, the adaptability is high, and the mechanism is safer and more reliable.

The embodiment also provides a gear shifting mechanism, which comprises the gear and has all the advantages of the gear.

The embodiment also provides an electric vehicle, which comprises the gear or the gear shifting mechanism and has all the advantages of the gear and the gear shifting mechanism.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a gear according to the present embodiment;

fig. 2 is a schematic structural diagram of a deformed structure of the gear according to the present embodiment;

FIG. 3 is a schematic cross-sectional view of the gear according to the present embodiment;

fig. 4 is a schematic structural view of a further modified gear structure according to the present embodiment.

Icon: 100-gear; 110-an intermediate connection; 111-an oil inlet groove; 120-driving gear part; 121-an oil outlet groove; 122-an oil storage tank; 1221-a first side; 1222-a second side; 130-a toggle part; 140-tooth grooves; 200-a filter screen.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1, the present embodiment provides a gear 100 suitable for various transmission mechanisms, particularly for a gear shifting mechanism. The shift mechanism may be adapted to an electric vehicle. The gear 100 is simple and reasonable in structure, has an oil way lubrication structure, can lubricate the gears 100 meshed with each other at the meshing position, enables the gears 100 to be driven smoothly, prolongs the service life of the gears 100, and improves the stability of a gear shifting mechanism.

The gear 100 provided in this embodiment is provided with an oil storage groove 122 and an oil outlet groove 121 which are communicated with each other on an end surface in an axial direction thereof, the depth of the oil outlet groove 121 is smaller than that of the oil storage groove 122, and one end of the oil outlet groove 121 far away from the oil storage groove 122 extends onto the peripheral surface of the gear 100.

During the operation of the gear 100, there is a large friction force between the gears 100 meshed with each other, and the lubricating fluid enters the oil outlet groove 121 from the oil storage groove 122 and then flows into the peripheral surface of the gear 100, so that lubrication is realized at the meshing position of the gears 100 meshed with each other. Meanwhile, the depth of the oil storage tank 122 is larger than that of the oil outlet tank 121, part of lubricating liquid can be stored in the oil storage tank 122, so that at the initial stage of mechanism operation, even if the lubricating liquid does not enter the oil storage tank 122, the gears 100 meshed with each other can be lubricated by the lubricating liquid stored in the oil storage tank 122, the adaptability is high, the gear 100 is smooth and reliable in operation of a transmission structure of the gear 100, the service life is prolonged, the failure rate is reduced, and the cost is reduced.

In this embodiment, referring to fig. 4, it should be noted that the gear 100 may be a complete gear in which the tooth grooves 140 are uniformly distributed on the entire circumference of the gear 100. Referring to fig. 1 and 2, the gear 100 may be an incomplete gear in which the tooth grooves 140 are uniformly arranged on a part of the circumferential surface of the gear 100. For example, in the present embodiment, the gear 100 is configured as an incomplete gear, and the portion having the tooth grooves 140 is substantially fan-shaped in projection along the axis of the gear 100 and on the horizontal plane.

Further, the gear 100 has two end faces in the own axis direction, and in this embodiment, an oil reservoir 122 and an oil outlet 121 that communicate with each other are provided on one end face of the gear 100 in the own axis direction. Obviously, in other embodiments, the oil storage tank 122 and the oil outlet tank 121 which are communicated can be arranged on both end surfaces of the gear 100 along the axial direction of the gear, so that the assembly of different working conditions can be adapted, and the use is flexible and reliable.

Referring to fig. 1 or 2, in this embodiment, an oil inlet groove 111 is further disposed on an end surface of the gear 100 along an axial direction thereof, the oil inlet groove 111 is communicated with an oil storage groove 122, and a depth of the oil inlet groove 111 is smaller than a depth of the oil storage groove 122. Further, the oil inlet groove 111 is an annular groove, the length of the oil inlet groove 111 extends around the axis of the gear 100, and the axis of the oil inlet groove 111 is collinear with the axis of the gear 100. Obviously, in other embodiments, the oil inlet groove 111 may be a bar-shaped groove, or the oil inlet groove 111 may be a square annular groove or the like. In this embodiment, the oil inlet groove 111 is provided as an annular groove, so that the lubricating fluid can be conveniently and rapidly conveyed into the oil storage groove 122, and the lubricating fluid conveying pipeline is also conveniently arranged.

Referring to fig. 1, the gear 100 provided in the present embodiment is an incomplete gear and is configured as a shift gear 100. The gear 100 includes an intermediate connection portion 110, a driving gear portion 120, and a stirring portion 130, where the driving gear portion 120 and the stirring portion 130 are disposed on a peripheral surface of the intermediate connection portion 110 and are arranged at intervals along the peripheral surface of the intermediate connection portion 110. The intermediate connection portion 110 is substantially circular, the driving tooth portion 120 is substantially fan-shaped, and the toggle portion 130 is substantially elongated.

When the intermediate connection portion 110, the driving gear portion 120 and the poking portion 130 can be integrally formed, the structure is more firm and reliable, and the structure is not easy to damage.

When the gear 100 is provided as an incomplete gear, the arrangement of the oil discharge groove 121, the oil storage groove 122, and the oil feed groove 111 on one end face of the gear 100 in the own axis direction is as follows:

the oil outlet groove 121 is disposed on an end surface of the driving gear 120, and an end of the oil outlet groove 121 away from the oil storage groove 122 extends to the circumferential surface of the driving gear 120 and is communicated with the tooth slot 140 on the driving gear 120. The oil reservoir 122 is provided on one end surface of the transmission gear 120 and communicates with the oil discharge groove 121. An annular oil feed groove 111 is provided on one end surface of the intermediate connection portion 110, the oil feed groove 111 being coaxial with the intermediate connection portion 110, the oil feed groove 111 communicating with the oil reservoir 122. Through with the one end and the tooth's socket 140 intercommunication of oil groove 121, the lubrication fluid can directly carry to in the tooth's socket 140, with tooth's socket 140 complex tooth with lubrication fluid contact more easily, and then increase lubrication effect. And one end of the oil outlet groove 121 directly extends to be communicated with the tooth groove 140, and the oil outlet groove 121 occupies less teeth on the transmission tooth part 120, so that the structural strength of the teeth is not easy to influence.

It is apparent that, in other embodiments, when the gear 100 is a full gear, the oil storage groove 122 may be provided as an annular groove, the oil outlet grooves 121 are arranged at intervals along the circumferential direction of the gear 100, and one end of the oil outlet groove 121 away from the oil storage groove 122 may extend to the tooth groove 140 of the gear 100 to communicate with the tooth groove 140.

Referring to fig. 2, in other embodiments, the gear 100 is configured as an incomplete gear, and the gear 100 includes an intermediate connection portion 110 and a transmission gear portion 120, wherein the transmission gear 100 is substantially fan-shaped, and the transmission gear portion 120 is disposed on a peripheral surface of the intermediate connection portion 110. The driving gear part 120 and the intermediate connection part 110 are integrally formed. The oil storage tank 122 and the oil outlet tank 121 are both disposed on the gear portion 120, the oil inlet tank 111 is disposed as an annular groove and is disposed on the intermediate connection portion 110, and the oil inlet tank 111 is coaxial with the intermediate connection portion 110.

Referring to fig. 3, in this embodiment, optionally, a filter screen 200 is disposed on the gear 100 for filtering the lubrication fluid from the oil tank 122 into the oil outlet tank 121.

Further, the oil reservoir 122 has a first side 1221 communicating with the oil outlet tank 121 and a second side 1222 communicating with the oil inlet tank 111, the first side 1221 and the second side 1222 being disposed opposite to each other. One side of the filter screen 200 is connected with the first side 1221, and the connection position of the filter screen 200 and the first side 1221 is not higher than the plane of the tank bottom of the oil outlet tank 121. The other side of the filter screen 200 is connected to the second side 1222, and the connection position of the filter screen 200 and the second side 1222 is not lower than the plane of the notch of the oil inlet groove 111. So designed, in the process that the lubricating fluid entering from the oil inlet groove 111 enters the oil outlet groove 121 from the oil storage groove 122, the lubricating fluid can enter the oil outlet groove 121 only by being filtered by the filter screen 200, and the filtering effect of the lubricating fluid is good, and the lubricating effect of the transmission mechanism of the gear 100 is good.

For example, in the present embodiment, the connection position between the filter screen 200 and the first side 1221 is located at the intersection line between the tank bottom of the oil tank 121 and the oil storage tank 122. The location where the filter screen 200 is connected to the second side 1222 is at the notch of the oil inlet groove 111.

The gear 100 provided in this embodiment has an oil path through which lubricating fluid flows, so that the gear 100 transmission mechanism can be well lubricated, and the service life of the gear 100 transmission mechanism can be prolonged.

The present embodiment also provides a gear shift mechanism including the gear 100 provided in the above embodiment, which has all the advantages of the gear 100.

The embodiment also provides an electric vehicle, which comprises the gear 100 or the gear shifting mechanism in the embodiment, wherein the gear shifting mechanism has good lubrication effect, stable transmission and difficult damage.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention.

Claims

1. A gear, characterized in that:

an oil storage tank and an oil outlet tank which are communicated are arranged on one end face of the gear along the axial direction of the gear, the depth of the oil outlet tank is smaller than that of the oil storage tank, and one end of the oil outlet tank, which is far away from the oil storage tank, extends to the peripheral surface of the gear;

an oil inlet groove is formed in the end face, provided with the oil storage groove, of the gear, the oil inlet groove is communicated with the oil storage groove, and the depth of the oil storage groove is larger than that of the oil inlet groove; the oil inlet groove is arranged as an annular groove;

2. A gear according to claim 1, wherein:

the gear comprises an intermediate connecting part with a mounting hole and a transmission tooth part connected with the peripheral surface of the intermediate connecting part; the oil inlet groove is arranged on one end face of the middle connecting part, and the oil storage groove and the oil outlet groove are both arranged on one end face of the transmission tooth part.

3. A gear according to claim 1 or 2, characterized in that:

4. A gear according to claim 3, wherein:

the gear is provided with a filter screen for filtering lubricating liquid entering the oil outlet groove from the oil storage groove.

5. The gear according to claim 4, wherein:

the oil storage tank is provided with a first side communicated with the oil outlet tank and a second side communicated with the oil outlet tank, and the height of the filter screen positioned on the first side is not lower than the end face where the notch of the oil inlet tank is positioned; the height of the filter screen positioned at the second side is not higher than the end face of the bottom of the oil outlet groove.

6. A gear shift mechanism, characterized by:

comprising a gear according to any of claims 1-5.

7. An electric vehicle, characterized in that:

comprising a gear according to any one of claims 1-5 or a gear shifting mechanism according to claim 6.