CN211474848U

CN211474848U - Oil collecting baffle of gear

Info

Publication number: CN211474848U
Application number: CN202020155746.0U
Authority: CN
Inventors: 陈碧军
Original assignee: Zhuji Baorui Gear Co ltd
Current assignee: Zhuji Baorui Gear Co ltd
Priority date: 2020-02-08
Filing date: 2020-02-08
Publication date: 2020-09-11
Anticipated expiration: 2030-02-08

Abstract

The utility model discloses an oil collecting baffle of a gear, which comprises a baffle body and an oil collecting part; the baffle body is formed by a bottom plate and semicircular side walls at the front side and the rear side which jointly surround to form a semicircular hollow cavity, part of gears are positioned in the hollow cavity, and the baffle body is provided with an oil inlet which deviates from the bottom of the baffle body; the oil collecting part comprises an arc-shaped impact plate and splash plates arranged on the front side and the rear side of the impact plate, a first fluid channel is formed in the impact plate, an oil collecting hole is formed in one side, facing the hollow cavity, of the impact plate, an oil outlet hole is formed in one side, deviating from the hollow cavity, of the impact plate, and the oil collecting hole and the oil outlet hole are communicated with the first fluid channel respectively. The oil collecting portion that strikes board and two splash guards formed can live partial gear cladding when using, and fluid on the gear can strike on the impact plate under the effect of centrifugal force, through mutually supporting of first fluid passage, oil trap and oil outlet on the impact plate, can effectively collect most fluid.

Description

Oil collecting baffle of gear

Technical Field

The utility model relates to a gear baffle structure of derailleur fluid bath, this baffle can carry out directional recovery effectively with fluid.

Background

The transmission system in a motor vehicle needs to be lubricated and cooled with hydraulic fluid or oil to operate continuously. More specifically, engines and, in particular, transmissions, require lubricating and cooling fluids or oils to keep them running and to extend their useful life. Fluid flows throughout the transmission via the hydraulic passage. This fluid or oil is transferred by a pump, such as for an automatic CVT or other transmission, and may be used for splash lubrication, such as for a manual DCT or other transmission.

A gear rotating in a fluid or oil medium, such as in an oil pan, will induce fluid flow. This flow is arbitrary in nature and can be collected on other rotating or non-rotating components. The ejected hydraulic fluid is uncontrolled, causing splashing, steady fluid flow, and/or differential fluid flow caused by contact with other components. The fluid may impinge directly on the gear mesh of adjacent gears or may splash back onto the rotating components and cause drag due to the fluid impingement. Furthermore, the fluid in contact with the rotating member is able to resist its movement, causing additional drag and power losses, known as churning losses.

SUMMERY OF THE UTILITY MODEL

The utility model provides an oil collecting baffle of gear, its aim at overcome the problem that fluid scatters around.

In order to achieve the purpose, the utility model provides a technical scheme as follows:

an oil collecting baffle of a gear comprises a baffle body and an oil collecting part;

the baffle plate comprises a baffle plate body and a baffle plate cover, wherein the baffle plate body consists of a semicircular annular bottom plate and semicircular side walls fixed on the front side and the rear side of the bottom plate, the bottom plate and the semicircular side walls on the front side and the rear side jointly surround to form a semicircular hollow cavity, semicircular openings are formed in the central positions of the upper parts of the semicircular side walls on the front side and the rear side, oil inlet holes are formed in the baffle plate body, and the oil inlet holes deviate from the bottom of the baffle plate body;

the oil collecting part comprises an arc-shaped impact plate and splash shields arranged on the front side and the rear side of the impact plate, the impact plate is fixed on the left side of the upper end of the baffle body, one end of each splash shield is fixed on the impact plate, and the other end of each splash shield extends towards the middle of the baffle body; the oil-collecting device is characterized in that a first fluid channel is formed in the impact plate, an oil collecting hole is formed in one side, facing the hollow cavity, of the impact plate, an oil outlet hole is formed in one side, facing away from the hollow cavity, of the impact plate, the oil collecting hole and the oil outlet hole are communicated with the first fluid channel respectively, and the oil collecting hole is located above the oil outlet hole.

Furthermore, the splash guards on the front side and the rear side are both fan-shaped.

Furthermore, a second fluid channel is respectively arranged in each splash guard, a second oil collecting hole and a second oil outlet hole are respectively arranged on each splash guard, and the second oil collecting holes are arranged on one side facing the hollow cavity.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: at first, the baffle body is installed with the mode that the opening of cavity is up, and the lower part submergence of baffle body is in derailleur fluid bath, the utility model discloses a set up the inlet port in the position of skew baffle body bottom for only in the fluid bath the fluid can get into the cavity of baffle body by the part that highly is higher than the inlet port, ensure only few part fluid in the cavity, thereby the oil mass of restriction gear direct contact, and then the stirring loss of reduction gear when the cavity internal rotation.

Secondly, the oil collecting portion that is formed by impingement plate and two splash guards can live partial gear cladding when using, and fluid on the gear can strike on the impingement plate under the effect of centrifugal force, through mutually supporting of first fluid passage, oil trap and oil outlet on the impingement plate, can effectively collect most fluid.

Drawings

Fig. 1 is a schematic structural diagram of a gear and an oil collecting baffle installed in a transmission.

Fig. 2 is a schematic perspective view of the oil collecting baffle.

Fig. 3 is a schematic perspective view of another view of the oil collecting baffle.

Fig. 4 is a schematic cross-sectional structure view of the oil collecting portion splash shield.

Fig. 5 is a schematic sectional structure view of the oil collecting part impact plate.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.

Referring to fig. 1, a partial schematic of the transmission is shown in fig. 1, and it can be seen that a gear 1 is mounted within an oil collection baffle 2, with the lower portion of the oil collection baffle 2 submerged in a fluid bath 3 at the bottom of the transmission.

Referring to fig. 2, the oil collecting baffle 2 includes a baffle body 4 and an oil collecting portion 5, and the oil collecting portion 5 is installed at the upper end of the left side of the baffle body 4. The baffle body 4 is composed of a semicircular annular bottom plate 41 and semicircular side walls 42 fixed to the front side and the rear side of the bottom plate 41, the bottom plate 41 and the semicircular side walls 42 on the front side and the rear side surround together to form a semicircular hollow cavity 40, the hollow cavity 40 is used for placing the rotating gear 1, and the inner size space of the hollow cavity is slightly larger than that of the gear 1. The central positions of the upper parts of the semicircular side walls 42 at the front side and the rear side are respectively provided with a semicircular opening 43, and the two openings 43 correspond to each other and are used for being matched with the rotating shaft 10 of the gear 1. As can be seen from fig. 2, the baffle body 4 is provided with an oil inlet 45, the oil inlet 45 is offset from the bottom of the baffle body 4, i.e. the oil inlet 45 and the bottom of the baffle body 4 have a certain height difference, and the oil inlets 45 are located at substantially the same height, and can be disposed on the semicircular side wall 42 or the bottom plate 41.

Referring to fig. 3, the oil collecting portion 5 includes an impact plate 51 having a circular arc shape and splash guards 52 disposed at the front and rear sides of the impact plate 51, the impact plate 51 is fixed to the left side of the upper end of the baffle body 4, and in this embodiment, the impact plate 51 has a length of about 1/4 circular arcs. Referring to fig. 5, a first fluid channel 61 is provided in the impact plate 51, an oil collecting hole 62 is provided on a side of the impact plate 51 facing the hollow cavity 40, an oil outlet 63 is provided on a side of the impact plate 51 facing away from the hollow cavity 40, the oil collecting hole 62 and the oil outlet 63 are respectively communicated with the first fluid channel 61, and the oil collecting hole 62 is located above the oil outlet 63. The oil collecting holes 62 of the striking plate 51 can collect most of the oil, mainly circumferential oil when the gear 1 rotates.

Each splash guard 52 is fan-shaped, one end of each splash guard is fixed to the impact plate 51, and the other end extends to the middle of the baffle body 4; referring to fig. 2 and 4, a second fluid passage 71 is respectively formed in each splash plate 52, and a second oil outlet hole 73 and a second oil collection hole 72 are respectively formed in each splash plate 52, the second oil outlet hole 72 being disposed at a side facing the hollow cavity 40. The oil collecting holes 72 of the splash guard 52 are used for collecting lateral oil generated when the gear 1 rotates, and the oil collecting effect of the oil collecting part 5 can be optimized by matching with the impact plate 51.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: at first, baffle body 4 is installed with the mode that the opening of cavity 40 is up, and the lower part submergence of baffle body 4 is in derailleur fluid bath 3, the utility model discloses a set up inlet port 45 in the position of skew baffle body 1 bottom for only the part that the fluid in fluid bath 3 is highly higher than inlet port 45 can get into the cavity 40 of baffle body 4, ensure only few part fluid in the cavity 40, thereby the oil mass of restriction gear 1 direct contact, and then the stirring loss when reducing gear 1 in cavity 40 internal rotation.

Secondly, the oil collecting part 5 formed by the impact plate 51 and the two splash plates 52 can cover part of the gear 1 when in use, oil on the gear 1 can collide on the impact plate 51 under the action of centrifugal force, and most of the oil can be effectively collected through the mutual matching of the first fluid channel 61, the oil collecting hole 62 and the oil outlet 63 on the impact plate 51.

The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An oil collecting baffle of a gear is characterized by comprising a baffle body and an oil collecting part;

2. An oil collecting baffle plate of a gear according to claim 1, characterized in that: the splash guards on the front and the rear sides are fan-shaped.

3. An oil collecting baffle of a gear according to claim 1 or 2, characterized in that: and a second fluid channel is respectively arranged in each splash guard, a second oil collecting hole and a second oil outlet hole are respectively arranged on each splash guard, and the second oil collecting holes are arranged on one side facing the hollow cavity.