CN209762171U - Differential gear convenient to heat dissipation - Google Patents

Abstract

The utility model belongs to the technical field of differential mechanism, especially be a differential mechanism gear convenient to heat dissipation, including oversheath and two semi-axles that run through the oversheath, the seal cover has been placed to the inside of oversheath, and the side gear has all been cup jointed to the one end of two semi-axles, and two the side gear all places in the inside of seal cover, the inboard surface symmetry of seal cover has erect planetary gear, and the side gear meshes with planetary gear and is connected, the one end of seal cover is through the bolt fastening driven gear; the inside of equipment has increased oil drain hole and backward flow groove, and the oil drain hole can be with the inside liquid discharge of seal cover, and the backward flow groove rotates the in-process through the pressure blade with the inside lubricating oil pump of oversheath to heat transfer fin, and liquid gets back to the inside of seal cover through the oil gallery, and heat transfer fin promotes the heat transfer rate of lubricating oil in this equipment use, and heat transfer fin promotes oversheath and external heat transfer effect, the inside temperature of effectual reduction differential mechanism.

Description

Differential gear convenient to heat dissipation

Technical Field

The utility model belongs to the technical field of differential mechanism, concretely relates to differential mechanism gear convenient to heat dissipation.

Background

A transmission is one of the main components of an automotive transmission system. The actual use condition of the automobile is complex, such as starting, idling stop, low-speed or high-speed running, acceleration, deceleration, climbing, backing and the like, so that the driving force and the speed of the automobile are required to be changed in a considerable range, and the output torque and the rotating speed of the piston engine which is widely adopted at present are smaller in change range. In order to adapt to the constantly changing driving conditions and at the same time to operate the engine in favorable operating conditions (higher power and lower fuel consumption), a transmission is provided in the drive train. However, the reduction gear of the transmission is often in a meshed transmission state, so that more heat is generated, and therefore heat dissipation is particularly important for the transmission, but the heat dissipation function of the existing transmission is not ideal, the gear of the transmission is seriously worn at high temperature, the service life of the gear is reduced to a certain extent, and the differential needs to be structurally improved and optimized aiming at the problem exposed in the use process of the existing differential.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a differential mechanism gear convenient to heat dissipation has the characteristics that promote differential mechanism radiating efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: a differential gear convenient for heat dissipation comprises an outer sheath and two half shafts penetrating through the outer sheath, wherein a sealing sleeve is arranged in the outer sheath, side gears are sleeved at one ends of the two half shafts and are arranged in the sealing sleeve, planetary gears are symmetrically arranged on the inner side surface of the sealing sleeve, the side gears are meshed and connected with the planetary gears, one end of the sealing sleeve is fixed with a driven gear through a bolt, the side surface of the driven gear is positioned at the inner side of the sealing sleeve and is provided with an oil discharge hole, a backflow groove is formed in the side surface, located on the driven gear, of the outer side of the oil discharge hole, a heat dissipation assembly is arranged on the side surface of the outer sheath and comprises heat dissipation fins, the radiating fins are integrally formed on the outer surface of the outer sheath, the inner wall of the outer sheath is provided with a driving gear, and the driving gear is meshed with the driven gear.

as the utility model discloses a differential gear is preferred technical scheme convenient to heat dissipation, the one end outside surface integrated into one piece of seal cover has the guide vane, one side of guide vane is located the side surface of seal cover and has seted up the oil gallery, the oil gallery runs through the inside that the outside surface of seal cover reachd the seal cover.

As the utility model discloses a differential gear is preferred technical scheme convenient to heat dissipation, the outside surface that the outside of guide vane is located the seal cover has seted up the auxiliary tank, the inside at the auxiliary tank is established to the one end of oil gallery.

As the utility model discloses a differential gear is preferred technical scheme convenient to heat dissipation, radiator unit still include heat transfer fin, heat transfer fin integrated into one piece is at the inner wall of outer sheath.

As the utility model discloses a differential gear is preferred technical scheme convenient to heat dissipation, heat transfer fin and radiating fin are the slice component, and heat transfer fin and radiating fin all are radially to be connected with the oversheath.

As the utility model discloses a differential gear is preferred technical scheme convenient to heat dissipation, the backward flow groove is ring column structure, the inside pressurization blade of evenly having arranged of backward flow groove, the pressurization blade is arc sheet structure.

compared with the prior art, the beneficial effects of the utility model are that: the inside of equipment has increased oil drain hole and backward flow groove, and the oil drain hole can be with the inside liquid discharge of seal cover, and the backward flow groove rotates the in-process through the pressure blade with the inside lubricating oil pump of oversheath to heat transfer fin, and liquid gets back to the inside of seal cover through the oil gallery, and heat transfer fin promotes the heat transfer rate of lubricating oil in this equipment use, and heat transfer fin promotes oversheath and external heat transfer effect, the inside temperature of effectual reduction differential mechanism.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

Fig. 2 is a schematic view of a driven structure in the present invention;

fig. 3 is a schematic side view of the sealing sleeve of the present invention;

In the figure: 1. an outer sheath; 2. a half shaft; 3. a side gear; 4. a driven gear; 5. an oil drain hole; 6. a reflux tank; 7. a driving gear; 8. sealing sleeves; 9. a planetary gear; 10. heat exchange fins; 11. a guide piece; 12. an oil return hole; 13. a heat dissipating fin; 14. a pressurizing blade; 15. an auxiliary groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a differential gear convenient for heat dissipation comprises an outer sheath 1 and two half shafts 2 penetrating through the outer sheath 1, a seal sleeve 8 is placed inside the outer sheath 1, side gears 3 are sleeved at one ends of the two half shafts 2, the two side gears 3 are placed inside the seal sleeve 8, planetary gears 9 are symmetrically erected on the inner side surface of the seal sleeve 8, the side gears 3 are meshed with the planetary gears 9, a driven gear 4 is fixed at one end of the seal sleeve 8 through bolts, an oil discharge hole 5 is formed in the side surface of the driven gear 4, a backflow groove 6 is formed in the side surface of the driven gear 4 outside the oil discharge hole 5, a heat dissipation assembly is arranged on the side surface of the outer sheath 1, the heat dissipation efficiency of heat dissipation assembly lifting equipment is improved, the temperature inside the equipment is prevented from being too high, the abrasion degree of the gears is reduced, the service life of the gears is prolonged, the heat dissipation assembly, the radiating fins 13 are integrally formed on the outer surface of the outer sheath 1, the driving gear 7 is erected on the inner wall of the outer sheath 1, the driving gear 7 is meshed with the driven gear 4, and in the embodiment, the driving gear 7 is used for driving the driven gear 4.

Specifically, seal cover 8's one end outside surface integrated into one piece has guide plate 11, and oil gallery 12 has been seted up to one side of guide plate 11 position in seal cover 8's side surface, and oil gallery 12 runs through seal cover 8's outside surface and reachs seal cover 8's inside, and oil gallery 12 is convenient for the inside and outside lubricating oil circulation of seal cover 8 in this embodiment.

Specifically, the outer side of the guide piece 11 is located on the outer side surface of the sealing sleeve 8, and an auxiliary groove 15 is formed in the outer side surface of the sealing sleeve 8, one end of the oil return hole 12 is arranged inside the auxiliary groove 15, and the auxiliary groove 15 facilitates the lubricating oil to flow into the oil return hole 12 in the embodiment.

Specifically, radiator unit still includes heat transfer fin 10, and heat transfer fin 10 integrated into one piece is at the inner wall of oversheath 1, and heat transfer fin 10 and lubricating oil contact in this embodiment carry out the heat transfer to the inside lubricating oil of equipment for the heat transmits to oversheath 1 on.

Specifically, heat transfer fin 10 and heat transfer fin 13 are the slice component, and heat transfer fin 10 and heat transfer fin 13 all are radially to be connected with oversheath 1, and the installation density of heat transfer fin 10 and heat transfer fin 13 can effectual promotion, the heat exchange efficiency of lifting means is described to the radial structure in this embodiment.

Specifically, the return channel 6 is of a circular structure, the pressurizing blades 14 are uniformly arranged in the return channel 6, the pressurizing blades 14 are of an arc-shaped sheet structure, and the pressurizing blades 14 can pressurize lubricating oil in the rotating process in the embodiment, so that the lubricating oil reaches one side of the heat exchange fins 10.

The utility model discloses a theory of operation and use flow: the utility model discloses in can pour into lubricating oil into to the inside of outer sheath 1 before this equipment operation, equipment operation in-process driving gear 7 rotates, driving gear 7 rotates in-process and drives driven gear 4 and rotate, driven gear 4 rotates the oil drain hole 5 of its side in-process, backflow groove 6 also can deflect with seal cover 8, backflow groove 6 rotates in-process with the lubricating oil pump of oversheath 1 inside to one side of heat transfer fin 10, lubricating oil flows back from guide vane 11 after arriving one side of heat transfer fin 10, lubricating oil reaches the inside of seal cover 8 from the inside of oil return hole 12, discharge from the inside of seal cover 8 through oil drain hole 5 again, discharged lubricating oil continues to be pressurized to one side of heat transfer fin 10 from backflow groove 6; heat exchange fin 10 promotes the heat transfer rate of lubricating oil in this equipment use, and radiating fin 13 promotes oversheath 1 and external heat transfer effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a differential gear convenient to heat dissipation, includes oversheath (1) and two semi-axles (2) that run through oversheath (1), its characterized in that: the heat dissipation device is characterized in that a sealing sleeve (8) is placed inside the outer sheath (1), the side gears (3) are sleeved at one ends of the two half shafts (2), the side gears (3) are placed inside the sealing sleeve (8), the planetary gears (9) are symmetrically erected on the inner side surface of the sealing sleeve (8), the side gears (3) are meshed with the planetary gears (9) and connected, a driven gear (4) is fixed at one end of the sealing sleeve (8) through bolts, an oil drainage hole (5) is formed in the side surface of the driven gear (4) on the side surface of the driven gear (4), a backflow groove (6) is formed in the side surface of the oil drainage hole (5) on the side surface of the driven gear (4), a heat dissipation component is arranged on the side surface of the outer sheath (1) and comprises heat dissipation fins (13), and the heat dissipation fins (13) are integrally formed on the outer surface of the outer sheath, the inner wall of the outer sheath (1) is provided with a driving gear (7), and the driving gear (7) is meshed with the driven gear (4) and connected.

2. A differential gear for facilitating heat dissipation as defined in claim 1, wherein: the one end outside surface integrated into one piece of seal cover (8) has guide vane (11), oil gallery (12) have been seted up to one side that guide vane (11) are located the side surface of seal cover (8), oil gallery (12) run through the inside that the outside surface of seal cover (8) reachd seal cover (8).

3. A differential gear for facilitating heat dissipation as defined in claim 2, wherein: the outer side of the guide piece (11) is located on the outer side surface of the sealing sleeve (8) and is provided with an auxiliary groove (15), and one end of the oil return hole (12) is arranged in the auxiliary groove (15).

4. A differential gear for facilitating heat dissipation as defined in claim 3, wherein: the heat dissipation assembly further comprises heat exchange fins (10), and the heat exchange fins (10) are integrally formed on the inner wall of the outer sheath (1).

5. A differential gear for facilitating heat dissipation as defined in claim 4, wherein: the heat exchange fins (10) and the heat dissipation fins (13) are both sheet-shaped components, and the heat exchange fins (10) and the heat dissipation fins (13) are both connected with the outer sheath (1) in a radial shape.

6. A differential gear for facilitating heat dissipation as defined in claim 5, wherein: the backflow groove (6) is of a circular ring structure, the pressurizing blades (14) are uniformly distributed in the backflow groove (6), and the pressurizing blades (14) are of arc-shaped sheet structures.