CN206111991U - Differential mechanism right side differential side gear - Google Patents

Abstract

The utility model relates to a technical field of machinery, more specifically says, it relates to a differential mechanism right side differential side gear, including the gear body, the gear body includes interconnect's shaft and wheel body, and the outer teeth of a cogwheel are placed in on the wheel body and are opened on the wheel body has the oilhole, be equipped with withstand voltage step on the terminal surface of wheel body and wheel hub connection, it has the escape to constitute between shaft and the withstand voltage step, the perisporium and the wheel body terminal surface of withstand voltage step are connected through withstand voltage portion, the radian of the portion the is arc form and the withstand voltage portion that this is withstand voltage is 45, the escape includes the half -circular arc wall and arranges the first inclined plane wall and the second inclined plane wall of half -circular arc wall both sides in, first inclined plane wall is arranged in on the withstand voltage step, it is epaxial that the wheel is placed in to second inclined plane wall, first inclined plane wall is equal to 30 for the inclination of shaft for the inclination and the second inclined plane wall of withstand voltage step, the utility model discloses rational in infrastructure simple, the practicality is strong, and oil filler point and escape structural strength are big.

Description

A kind of differential mechanism right axle shaft gear

Technical field

This utility model is related to the technical field of machinery, more specifically, it relates to a kind of differential mechanism right axle shaft gear.

Background technology

Automobile differential can make left and right（Or it is forward and backward）Driving wheel realizes the mechanism rotated with different rotating speeds.It is main by Left and right half gear, two planetary gears and tooth rest composition.Function is when automobile turning is travelled or the traveling on uneven road surface When, make left and right wheelses and rolled with different rotating speeds, that is, ensure that both sides driving moment makees PURE ROLLING.

Current axle shaft gear structure includes gear, and gear outer wall is evenly equipped with some external gear teeths, gear Axis hole is offered, shaft hole inner wall is provided with internal spline, and gear includes wheel shaft and the wheel body being connected with each other again.

Right axle shaft gear needs good lubricant environment, lubricating oil to need to penetrate in axle shaft gear, prevent in running up Only there is the problems such as getting rusty in axle shaft gear, so an oilhole for oiling can be opened up in gear, and in order to for Facilitate processing, escape can be set between wheel shaft and wheel body, wheel body can be caused during processing oilhole and escape Extremely strong rigid load so that wheel body fatigue is impaired, and the structural stability of oilhole and escape is also relatively poor.

Utility model content

In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of rational in infrastructure simple, practical Property strong, the big differential mechanism right axle shaft gear of oilhole and relief groove structure intensity.

For achieving the above object, this utility model provides following technical scheme：

A kind of differential mechanism right axle shaft gear, including gear, gear outer wall are evenly equipped with some external gear teeths, and adjacent two Constituting between individual external gear teeth has teeth groove, and the gear offers axis hole, and shaft hole inner wall is provided with internal spline, gear bag The wheel shaft and wheel body being connected with each other is included, external gear teeth is placed on wheel body and is provided with wheel body the end face of oilhole, wheel body and wheel shaft connection Pressure step is provided with, constituting between wheel shaft and pressure step has escape, the perisporium and wheel body end face of pressure step is by resistance to Splenium connects, and the radian of the resistance to curved shape of splenium and resistance to splenium is 45 °, the one end open of oilhole be placed on pressure step and with Escape is connected, and another end opening is placed in a teeth groove, and the escape includes semicircular arc wall and is placed in semicircular arc wall two First beveled walls and the second beveled walls of side, the first beveled walls are placed on pressure step, and the second beveled walls are placed on wheel shaft, and first Beveled walls relative to pressure step angle of inclination and the second beveled walls relative to wheel shaft angle of inclination it is equal be 30 °.

The thickness of wheel body is improve by adopting above-mentioned technical proposal, the setting of pressure step, by escape and oilhole Perforate end opens up processing from resistance to splenium, and pressure step plays buffering machining stress, substantially reduces processing escape and oilhole pair The rigid load of gear, and in order to further improve the structural strength and structural stability of pressure step, and then resistance to Present a theatrical performance as the last item on a programme arrange on rank and perisporium and the connection of wheel body end face resistance to splenium, due to the arcuate structure that resistance to splenium is 45 °, the meeting in stress The very strong internal force for being used to offset external force is produced, so ensure that its stress is indeformable.

In order to realize that escape possesses the ability for storing oil, and then connect by the one end open alignment escape of oilhole and with which It is logical, and the structure of escape can also improve the structural strength at the one end open of oilhole.

Semicircular arc wall in the middle of escape as stores oily end wall, and the first beveled walls being placed on pressure step play slow The purpose that lubricating oil in oil hole flows out flow velocity is rushed, prevents its flow velocity too fast, it is impossible to which realization carries out the purpose of oiling to escape, and The second beveled walls being placed on wheel shaft play the purpose that lubricating oil can flow back from wheel shaft.

The structure design of escape：The combination of semicircular arc wall and the first beveled walls and the second beveled walls, semicircular arc wall Play support and offset the ability of the first beveled walls and external force suffered by the second beveled walls, and the first beveled walls and the second beveled walls sheet Body possesses very strong voltage endurance capability.

This utility model is further arranged to：The oilhole is oblique and oilhole inwall constitutes taper microgroove with teeth.

Play and alleviate when lubricating oil is injected to oilhole due to stream by adopting above-mentioned technical proposal, the setting of tooth taper microgroove Speed is too fast and cause the oilhole inwall can not immersion oil completely.

Description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is G portions of the present utility model enlarged drawing.

Specific embodiment

Embodiment of the present utility model is described further referring to figs. 1 to Fig. 2.

A kind of differential mechanism right axle shaft gear, including gear 1,1 outer wall of gear are evenly equipped with some external gear teeths 121, Constituting between two neighboring external gear teeth 121 has teeth groove, and the gear 1 offers axis hole 10, and 10 inwall of axis hole is provided with interior Spline, gear 1 include the wheel shaft 11 being connected with each other and wheel body 12, and external gear teeth 121 is placed on wheel body 12 and opens on wheel body 12 The end face for having oilhole 101, wheel body 12 and the connection of wheel shaft 11 is provided with pressure step 3, and constituting between wheel shaft 11 and pressure step 3 has Escape 4, the perisporium and 12 end face of wheel body of pressure step 3 are connected by the 3a of resistance to splenium, curved shapes of the 3a of resistance to splenium and pressure The radian of portion 3a is 45 °, and the one end open of oilhole 101 is placed on pressure step 3 and is connected with escape 4, and another end opening is put In a teeth groove, the escape 4 include semicircular arc wall 4a and be placed in semicircular arc wall 4a both sides the first beveled walls 41 and Second beveled walls 42, the first beveled walls 41 are placed on pressure step 3, and the second beveled walls 42 are placed on wheel shaft 11, the first beveled walls 41 relative to pressure step 3 angle of inclination and the second beveled walls 42 relative to wheel shaft 11 angle of inclination it is equal be 30 °.

The setting of pressure step 3 improves the thickness of wheel body 12, by the perforate end of escape 4 and oilhole 101 from pressure Portion 3a opens up processing, and pressure step 3 plays buffering machining stress, substantially reduces processing escape 4 and oilhole 101 to gear 1 rigid load, and in order to further improve the structural strength and structural stability of pressure step 3, and then in pressure step 3 The 3a of resistance to splenium connected with setting on perisporium and 12 end face of wheel body, due to the arcuate structure that the 3a of resistance to splenium is 45 °, the meeting in stress The very strong internal force for being used to offset external force is produced, so ensure that its stress is indeformable.

In order to realize that escape 4 possesses the ability for storing oil, so by the one end open of oilhole 101 alignment escape 4 and with Its connection, and the structure of escape 4 can also improve the structural strength at the one end open of oilhole 101.

The oily end wall of semicircular arc wall 4a in the middle of escape 4 as storages, and the first beveled walls 41 being placed on pressure step 3 The purpose of outflow of lubrication oil flow velocity in buffering oilhole 101 is played, prevents its flow velocity too fast, it is impossible to which realization is noted to escape 4 The purpose of oil, and the second beveled walls 42 being placed on wheel shaft 11 play the purpose that lubricating oil can flow back from wheel shaft 11.

The structure design of escape 4：The combination of semicircular arc wall 4a and the first beveled walls 41 and the second beveled walls 42, semicircle Arcwall 4a plays support and offsets the ability of the first beveled walls 41 and external force suffered by the second beveled walls 42, and the first beveled walls 41 Possesses very strong voltage endurance capability in itself with the second beveled walls 42.

Oilhole 101 is oblique and 101 inwall of oilhole constitutes taper microgroove with teeth.

The setting of tooth taper microgroove is played when alleviation injects lubricating oil to oilhole 101 and causes oilhole as flow velocity is too fast 101 inwalls can not immersion oil completely.

Preferred embodiment of the present utility model is the foregoing is only, not to limit this utility model, the skill of this area Art personnel carry out common variations and alternatives in the range of technical solutions of the utility model and should be included in guarantor of the present utility model In the range of shield.

Claims (2)

1. a kind of differential mechanism right axle shaft gear, including gear, gear outer wall are evenly equipped with some external gear teeths, two neighboring Constituting between external gear teeth has teeth groove, and the gear offers axis hole, and shaft hole inner wall is provided with internal spline, it is characterized in that：Institute Wheel shaft and wheel body that gear includes being connected with each other are stated, external gear teeth is placed on wheel body and is provided with wheel body oilhole, the wheel body Pressure step is provided with the end face of wheel shaft connection, constituting between wheel shaft and pressure step has escape, the perisporium of pressure step Connected by resistance to splenium with wheel body end face, the radian of the resistance to curved shape of splenium and resistance to splenium is 45 °, and the one end open of oilhole is put Connect on pressure step and with escape, another end opening is placed in a teeth groove, the escape include semicircular arc wall and First beveled walls and the second beveled walls of semicircular arc wall both sides are placed in, the first beveled walls are placed on pressure step, the second inclined-plane Wall is placed on wheel shaft, the first beveled walls relative to pressure step angle of inclination and the second beveled walls relative to wheel shaft inclination angle It is 30 ° that degree is equal.

2. a kind of differential mechanism right axle shaft gear according to claim 1, is characterized in that：The oilhole is oblique and oilhole Inwall constitutes taper microgroove with teeth.