CN218236086U - Gear box and vehicle - Google Patents

Abstract

The present disclosure relates to a gear box and a vehicle, the gear box includes a box body and a gear rotatably installed in the box body, the gear box further includes an oil guide member installed on the box body and having an oil guide surface facing a first end surface of the gear, an oil guide passage extending in a circumferential direction of the gear is formed between the oil guide surface and the first end surface, and the oil guide passage extends at least upward from a first side of the gear beyond a horizontal diameter line of the gear. Through above-mentioned technical scheme, this gearbox that openly provides can guarantee inside motion's lubricated effect and cooling effect.

Description

Gear box and vehicle

Technical Field

The present disclosure relates to the field of gearbox lubrication, in particular, to a gearbox and a vehicle.

Background

The lubrication of each part in a gearbox (such as a transmission or a speed reducer) needs to stir up lubricating oil by means of the rotation of gears to form 'splashing' lubricating oil, and the 'splashing' lubricating oil randomly splashes to the insides of a bearing, an oil seal and the like to lubricate the corresponding parts. The splash lubrication oil guide device generally needs to be composed of an oil collecting device, an oil guide device and a lubricating device. The device requires that the oil collecting device has a certain oil collecting area to collect enough lubricating oil, so that the lubricating and cooling of the moving mechanism in the reduction box can be met. The splash lubrication oil guide device has a complex structure, can meet the lubrication requirement only by needing a large oil collecting area, and has a low utilization rate of lubricating oil thrown out by the rotation of the gear, so that the lubrication effect and the cooling effect of a movement mechanism in a speed box are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a gear box, this gear box can guarantee inside moving mechanism's lubricated effect and cooling effect.

In order to achieve the above object, the present disclosure provides a gearbox including a case and a gear rotatably mounted in the case, the gearbox further including an oil guide mounted on the case and having an oil guide surface facing a first end surface of the gear, an oil guide passage extending in a circumferential direction of the gear being formed between the oil guide surface and the first end surface, the oil guide passage extending from a first side of the gear at least upward beyond a horizontal diameter line of the gear.

Optionally, the oil guide member includes an oil guide plate forming the oil guide surface, and the oil guide plate is formed as a sector ring plate.

Optionally, the sector ring plate is concentric with the gear and has an outer circumference that extends beyond a tooth root of the gear.

Optionally, the inner edge of the ring plate is provided with an annular flange protruding in a direction away from the oil guide surface.

Optionally, the distance between the oil guide surface and the first end surface is 3-20 mm.

Optionally, the oil guide plate is mounted to the box body through a fastener, a counter bore is formed in a side of the oil guide surface facing the box body, and a head of the fastener is accommodated in the counter bore, so that an outer surface of the head is flush with the oil guide surface.

Optionally, the oil guide plate is further provided with a boss with a through hole, the boss protrudes along the direction that the counter bore deviates from the oil guide surface, the through hole is coaxially arranged with the counter bore and communicated, and the fastener sequentially penetrates through the counter bore and the through hole and is connected to the box body.

Optionally, a mounting assembly is arranged between the boss and the box body, the mounting assembly comprises a gasket and a bushing which are coaxially arranged, the gasket and the bushing are respectively sleeved on the rod portion of the fastener, and the gasket is located between the boss and the bushing.

Optionally, the gearbox is a reducer, the reducer further includes a main shaft and an intermediate shaft, the main shaft and the intermediate shaft are respectively rotatably mounted in the box body and are respectively provided with a lubricating oil passage, and the oil guide passage is configured such that lubricating oil thrown out from the oil guide passage can be thrown into the lubricating oil passages of the main shaft and the intermediate shaft, respectively.

In the technical aspect of the above scheme, the present disclosure further provides a vehicle including the above gearbox.

Through above-mentioned technical scheme, in the gear box that this disclosure provided, lead the oil piece and install on the box and lead and form between the first terminal surface of oil piece's the oil guide surface and gear and lead the oil passageway, lead the oil passageway and extend and lead the horizontal diameter line that the oil passageway upwards extends beyond the gear from the first side of gear at least along the circumference of gear to when making the gear rotate, the lubricating oil that gets into from the lower extreme and lead the oil passageway can be thrown out towards the second side of gear from the upper end after leading between oil surface and the first terminal surface each other splash, can make fluid can be thrown to the motion department in the gear box and then realize motion's lubrication and cooling like this. The oil guide channel is simple in structure and high in oil guide efficiency, and can ensure the lubricating effect and the cooling effect of a moving mechanism in the gear box. Therefore, the gear box provided by the disclosure can ensure the lubricating effect and the cooling effect of the internal movement mechanism.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a gearbox provided according to an embodiment of the present disclosure, wherein a case and an oil guide are in a connected state;

FIG. 2 is another schematic structural view of a gearbox provided in accordance with an embodiment of the present disclosure, wherein gears, a main shaft, an intermediate shaft, and oil guides are shown;

FIG. 3 is a schematic structural view of an oil guide in a gearbox provided in accordance with an embodiment of the present disclosure;

FIG. 4 is another schematic structural view of an oil guide in a gearbox provided in accordance with an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of an oil guide and a case in a coupled state in a gear box provided in accordance with an embodiment of the present disclosure, wherein a gasket and a bushing are shown;

fig. 6 is a schematic view of oil moving in an oil guide passage in a gear box according to an embodiment of the present disclosure.

Description of the reference numerals

1, a box body; 11-a first mounting hole; 12-a second mounting hole; 13-a third mounting hole;

2-a gear; 21-a first end face;

3-oil guide; 31-oil guide plate; 311-sector ring plate; 32-oil guiding surface; 321-counterbores; 33-a boss; 331-through holes; 34-an oil guide channel; 35-an annular flange;

4-a fastener; 41-a head; 42-a stem portion;

5-a main shaft; 6-intermediate shaft; 7-a gasket; 8-a liner.

Detailed Description

The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of the terms "inner" and "outer" in the orientation, without being interpreted to the contrary, refers to the "inner" and "outer" relative to the profile of the corresponding component itself; "upper" and "lower" refer to up and down in the direction of the drawing plane of fig. 1. In addition, the ordinal words "first", "second", etc., used in this disclosure are to distinguish one element from another and are not necessarily order or importance. Furthermore, in the following description, when referring to the drawings, like reference numbers in different drawings denote like elements. It will be appreciated by persons skilled in the art that the foregoing directional terms, ordinal terms, etc. are defined for convenience of description only and are not intended to limit the present disclosure.

According to a specific embodiment of the present disclosure, a gearbox is provided, one example of which is illustrated in fig. 1 to 6. As shown in fig. 1 to 6, the gear box may include a box body 1 and a gear 2 rotatably mounted in the box body 1, the gear box further includes an oil guide 3, the oil guide 3 is mounted on the box body 1 and has an oil guide surface 32 facing the first end surface 21 of the gear 2, an oil guide channel 34 extending along a circumferential direction of the gear 2 is formed between the oil guide surface 32 and the first end surface 21, and the oil guide channel 34 extends from the first side of the gear 2 at least upwards beyond a horizontal diameter line of the gear 2.

By the technical scheme, in the gear box provided by the disclosure, the oil guide 3 is mounted on the box body 1, the oil guide channel 34 is formed between the oil guide surface 32 of the oil guide 3 and the first end surface 21 of the gear 2, the oil guide channel 34 extends along the circumferential direction of the gear 2, and the oil guide channel 34 extends from the first side of the gear 2 at least upwards to exceed the horizontal diameter line of the gear 2, so that when the gear 2 rotates, lubricating oil entering the oil guide channel 34 from the lower end can be thrown out from the upper end towards the second side of the gear 2 after being splashed between the oil guide surface 32 and the first end surface 21, and thus the lubricating oil can be thrown to a motion mechanism (such as a bearing, a gear and the like) in the gear box to lubricate and cool the motion mechanism. The oil guide channel 34 is simple in structure and high in oil guide efficiency, and can ensure the lubricating effect and the cooling effect of a movement mechanism in the gear box. Therefore, the gear box provided by the disclosure can ensure the lubricating effect and the cooling effect of the internal movement mechanism.

It should be noted that the first side is understood to be the side on which the first end surface 21 of the gear 2 is located, and correspondingly, the second side is understood to be the side disposed opposite to the first side, i.e., the side disposed opposite to the first end surface 21. In addition, as shown in fig. 6, as the rotation speed of the gear 2 increases, the kinetic energy of the splashed lubricating oil stirred by the gear 2 is larger, so that the centrifugal force of the lubricating oil is larger, that is, more and more lubricating oil collides against the oil guide surface 32, after the lubricating oil is gathered in a sufficient amount, an oil collecting layer is formed on the oil guide surface 32 and the first end surface 21, and the lubricating oil can be thrown out from the upper end toward the second side of the gear 2 after being splashed mutually between the oil guide surface 32 and the first end surface 21, so as to lubricate and cool the corresponding moving mechanism. The opening position of the upper end of the oil guide channel 34 needs to be determined according to the maximum distance of lubrication, the size of the oil guide channel needs to ensure that lubricating oil has enough throwing speed when leaving the oil guide channel 34, and the transmission efficiency is improved on the premise of ensuring the lubricating effect.

In the embodiment of the present disclosure, the oil guide 3 may be configured in any suitable manner, and alternatively, as shown in fig. 1 to 4 and 6, the oil guide 3 may include an oil guide plate 31 forming an oil guide surface 32, the oil guide plate 31 being formed as a sector plate 311 to be adapted to the shape of the gear 2, so that the oil guide passage 34 is formed as a circular arc-shaped passage, which may facilitate the lubricating oil entering the oil guide passage 34 from the lower end to be thrown out from the upper end toward the second side of the gear 2 after being splashed between the oil guide surface 32 and the first end surface 21. In other embodiments of the present disclosure, the oil guiding member 3 may also be configured in other manners, and the present disclosure is not limited thereto.

In the embodiment of the present disclosure, referring to fig. 2, the sector ring plate 311 may be concentric with the gear 2 and the outer peripheral surface thereof exceeds the tooth root of the gear 2, so as to ensure that the lubricating oil driven by the rotation of the gear 2 can enter the oil guide channel 34 and be thrown out from the upper end toward the second side of the gear 2 to the moving mechanism in the gear box after being sputtered from the oil guide surface 32 and the first end surface 21 to each other, so as to achieve the lubrication and cooling of the moving mechanism.

In the embodiment of the present disclosure, referring to fig. 2, the inner edge of the ring plate 311 is provided with an annular flange 35 protruding in a direction away from the oil guide surface 32. The provision of the annular flange 35 can be used to avoid interference of the oil guide 3 with the rotation of the gear 2.

In the embodiment of the present disclosure, the distance between the oil guiding surface 32 and the first end surface 21 may be 3 to 20mm, and the proper distance between the oil guiding surface 32 and the first end surface 21 ensures that the lubricating oil entering the oil guiding channel 34 from the lower end can be thrown out from the upper end toward the second side of the gear 2 after the lubricating oil is splashed between the oil guiding surface 32 and the first end surface 21 when the gear 2 rotates, so as to avoid the situation that the lubricating oil cannot be thrown out from the upper end toward the second side of the gear 2 due to the excessively large or excessively small distance between the oil guiding surface 32 and the first end surface 21. The specific distance between the oil guide surface 32 and the first end surface 21 can be adaptively selected according to actual conditions.

In the embodiment of the present disclosure, as shown in fig. 1, 3 and 5, the oil guide plate 31 is mounted to the case 1 by the fastener 4, a counter bore 321 is formed at a side of the oil guide surface 32 facing the case 1, and the head 41 of the fastener 4 is received in the counter bore 321, so that the outer surface of the head 41 is flush with the oil guide surface 32, thereby reducing the influence on the oil guide effect of the oil guide surface 32. The number of the counter bores 321 can be adaptively selected according to actual needs, and the disclosure is not limited thereto. In addition, the oil guide plate 31 is installed on the box body 1 through the fastening piece 4, so that the installation reliability is high, the installation position of the oil guide plate 31 can be adaptively adjusted according to actual needs, and the functions of oil collection and oil guide are further realized.

In the embodiment of the present disclosure, referring to fig. 3 to 5, the oil guide plate 31 is further provided with a boss 33 having a through hole 331, the boss 33 protrudes in a direction in which the counter bore 321 faces away from the oil guide surface 32, the through hole 331 is coaxially disposed and communicated with the counter bore 321, and the fastening member 4 sequentially passes through the counter bore 321 and the through hole 331 and is connected to the tank 1. The number of the bosses 33 is the same as that of the counterbores 321, and the bosses are arranged in a one-to-one correspondence manner. The arrangement of the boss 33 facilitates the fastener 4 to mount the oil guide plate 31 on the case 1 so as to realize the mounting and positioning of the oil guide plate 31, and can increase the strength of the counter bore 321 of the oil guide plate 31, thereby avoiding the influence on the strength of the whole oil guide plate 31 due to the opening of the counter bore 321.

In the embodiment of the present disclosure, referring to fig. 5, a mounting assembly may be disposed between the boss 33 and the box body 1, wherein the mounting assembly may include a gasket 7 and a bushing 8, which are coaxially disposed, the gasket 7 and the bushing 8 are respectively sleeved on the rod portion 42 of the fastener 4, and the gasket 7 is located between the boss 33 and the bushing 8. The gasket 7 and the bush 8 are arranged to realize the connection reliability of the oil guide piece 3 and the box body 1, and the distance between the oil guide plate 31 and the first end face 21 can be adjusted, and the rod part 42 of the fastener 4 sequentially penetrates through the counter bore 321, the through hole 331, the gasket 7 and the bush 8 and is connected to the box body 1, so that the connection reliability is guaranteed, and the distance between the oil guide surface 32 and the first end face 21 can be adjusted. Wherein the distance between the oil guiding surface 32 and the first end surface 21 can be changed by changing the number of the spacers 7 or selecting the bushings 8 with different lengths.

In a specific embodiment of the present disclosure, reference is made to fig. 2 and 3. The oil guide piece 3 can be integrally formed, the number of parts is small, the structure is simple, the processing and the manufacturing are convenient, the matching cost of the vibration mode of the gear box can be reduced, and the number of failure modes of the gear box is reduced.

In the embodiment of the present disclosure, the gear box may be configured in any suitable manner, for example, as shown in fig. 1 to 6, the gear box may be a speed reducer, the speed reducer may further include a main shaft 5 and an intermediate shaft 6, the main shaft 5 and the intermediate shaft 6 are respectively rotatably installed in the box body 1 and are respectively provided with an oil passage, and the oil guide passage 34 is configured such that the oil thrown from the oil guide passage 34 can be respectively thrown into the oil passages of the main shaft 5 and the intermediate shaft 6, thereby achieving lubrication and cooling of the respective bearings of the main shaft 5 and the intermediate shaft 6. Specifically, referring to fig. 1 and 2, the gear 2 is rotatably mounted in the first mounting hole 11 of the housing 1, the main shaft 5 is rotatably mounted in the second mounting hole 12 of the housing 1 through a bearing, the intermediate shaft 6 is rotatably mounted in the third mounting hole 13 of the housing 1 through a bearing, and the lubricating oil thrown out from the oil guide passage 34 can be thrown into the lubricating oil passages of the main shaft 5 and the intermediate shaft 6, respectively, so as to lubricate and cool the bearing of the main shaft 5 and the bearing of the intermediate shaft 6, and in addition, the lubricating oil can be thrown into the lubricating oil passage of the gear 2 so as to lubricate and cool the bearing of the gear. In other embodiments of the present disclosure, the gear box may be in other configurations, for example, the gear box may be a transmission, and the present disclosure is not limited thereto, and those skilled in the art can adapt the configuration according to actual needs.

In the technical aspect, the present disclosure also provides a vehicle including the above-described gearbox.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A gearbox comprising a housing and a gear rotatably mounted in the housing, the gearbox further comprising an oil guide mounted on the housing and having an oil guide surface facing a first end surface of the gear, an oil guide channel being formed between the oil guide surface and the first end surface and extending in the circumferential direction of the gear, the oil guide channel extending at least upwardly from a first side of the gear beyond a horizontal diametrical line of the gear.

2. The gearbox of claim 1, wherein the oil guide includes an oil guide plate forming the oil guide surface, the oil guide plate being formed as a sector ring plate.

3. The gearbox of claim 2, wherein the sector ring plate is concentric with the gear and has an outer peripheral surface that extends beyond a tooth root of the gear.

4. A gearbox according to claim 2, in which the inner edge of the sector plate is provided with an annular flange projecting in a direction away from the oil guide surface.

5. The gearbox of claim 1, wherein the distance between the oil guide surface and the first end surface is 3-20 mm.

6. The gearbox as set forth in claim 2, wherein said oil deflection plate is mounted to said casing by a fastener, a side of said oil deflection surface facing said casing being formed with a counterbore, a head of said fastener being received in said counterbore such that an outer surface of said head is flush with said oil deflection surface.

7. The gearbox according to claim 6, wherein the oil guide plate is further provided with a boss having a through hole, the boss protrudes in a direction of the counter bore away from the oil guide surface, the through hole is coaxially arranged with and communicated with the counter bore, and the fastening member sequentially passes through the counter bore and the through hole and is connected to the box body.

8. The gearbox of claim 7, wherein a mounting assembly is disposed between the boss and the housing, the mounting assembly includes a coaxially disposed spacer and a bushing, the spacer and the bushing are respectively sleeved on the shank of the fastener, and the spacer is disposed between the boss and the bushing.

9. A gearbox according to any one of claims 1 to 8, in which the gearbox is a speed reducer, the speed reducer further comprising a main shaft and an intermediate shaft, each rotatably mounted in the housing and having a lubrication duct, the oil guide channels being configured such that the lubrication oil thrown out of the oil guide channels can be thrown into the lubrication ducts of the main shaft and the intermediate shaft, respectively.

10. A vehicle, characterized in that the vehicle comprises a gearbox according to any one of claims 1-9.

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