CN205226320U - Differential mechanism subassembly - Google Patents

Differential mechanism subassembly Download PDF

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Publication number
CN205226320U
CN205226320U CN201620104309.XU CN201620104309U CN205226320U CN 205226320 U CN205226320 U CN 205226320U CN 201620104309 U CN201620104309 U CN 201620104309U CN 205226320 U CN205226320 U CN 205226320U
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China
Prior art keywords
planetary gear
gear
housing
differential
bowl
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Active
Application number
CN201620104309.XU
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Chinese (zh)
Inventor
梁世恭
史经升
羊本伟
高伟
彭君国
丁海浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TAIZHOU JINNA AXLE CO Ltd
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TAIZHOU JINNA AXLE CO Ltd
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Priority to CN201620104309.XU priority Critical patent/CN205226320U/en
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Abstract

The utility model provides a differential mechanism subassembly belongs to vehicle accessory technical field. It has solved the short scheduling problem of current differential mechanism subassembly life. This differential mechanism subassembly includes the casing, left side differential side gear, right side differential side gear, go up planetary gear, lower planetary gear and cylindric lock, go up planetary gear, planetary gear meshes in left differential side gear and right differential side gear jointly down, the cylindric lock passes planetary gear and lower planetary gear and links firmly mutually with the casing, the casing has been seted up and has been located left differential side gear and last planetary gear, the left oil storage chamber of lower planetary gear meshing department, the casing has still been seted up and has been located right differential side gear and last planetary gear, the right oil storage chamber of lower planetary gear meshing department, it is equipped with the calathiform gasket to go up between planetary gear and the casing, be equipped with down the calathiform gasket down between planetary gear and the casing, the cylindric lock passes calathiform gasket and lower calathiform gasket setting. The utility model has the advantages of compact structure, long service life.

Description

A kind of differential assembly
Technical field
The utility model belongs to vehicle body fittings technical field, relates to a kind of differential assembly.
Background technique
Automobile differential can make left and right (or forward and backward) driving wheel realize the mechanism rotated with different rotating speeds.Open type differential is the most conventional, and primarily of left and right differential gear, two planetary pinions and gear carrier composition, it can distribute the moment of torsion of equal size by two jack shafts to the left and right.When its straight line travels, left and right wheels is stressed equal, and two-semiaxle gear does not exist speed discrepancy, so planetary pinion rotation does not occur, the driven gear ring of main reducing gear is equivalent to Direct driver two-semiaxle gear; Differential gear is connected with wheel by jack shaft, and after therefore substantially passing a series of power transmission process, wheel obtains the identical rotating speed of gear ring driven with main reducing gear.Ackermann steer angle, outboard wheels wishes to obtain the rotating speed higher than inboard wheel, and now planetary pinion is got involved, while the transmission of maintenance moment of torsion, allow two-semiaxle gear to occur slight speed discrepancy.
Planetary pinion in existing differential mechanism is all connected mutually by straight pin and differential mechanism shell, claimant finds because of the hardness of planetary hardness higher than differential mechanism shell in test process, and during planetary pinion engagement left and right differential gear, planetary pinion can along cylindrical pin to trickle displacement, planetary pinion can collide differential mechanism outer casing inner wall, so planetary pinion easily causes cause wearing and tearing to differential mechanism shell, shorten working life, in addition in the past in order to locate, differential mechanism shell all have the some locating columns protruded, when such differential mechanism shell is worked into locating column position, locating column can stop cutter, therefore withdrawing feed processing is more all needed repeatedly again, processing inconvenience, work efficiency is low.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of rational in infrastructure, the differential assembly of long service life.
The purpose of this utility model realizes by following technical proposal: a kind of differential assembly, comprise housing, left half axle gear, right axle shaft gear, upper planetary gear, lower planetary gear and straight pin, described left half axle gear and right axle shaft gear are symmetrical set in housing, described upper planetary gear, lower planetary gear is engaged in left half axle gear and right axle shaft gear jointly, straight pin to be connected with housing with lower planetary gear mutually through upper planetary gear, it is characterized in that, described housing offers and is positioned at left half axle gear and upper planetary gear, the left shoe cream room of lower planetary gear engagement place, housing also offers and is positioned at right axle shaft gear and upper planetary gear, the right shoe cream room of lower planetary gear engagement place, bowl-type pad is provided with between described upper planetary gear and housing, lower bowl-type pad is provided with between described lower planetary gear and housing, described straight pin is arranged through upper bowl-type pad and lower bowl-type pad.
This differential assembly is by the setting of left shoe cream room and right shoe cream room, make oil refill in left half axle gear, right axle shaft gear and upper planetary gear, lower planetary gear engagement place, the lubrication of engagement place is abundant, go up bowl-type pad in addition and lower bowl-type pad all has buffer function, there is certain resilience extending amount, can effectively avoid upper planetary gear, lower planetary gear to the wearing and tearing of inner walls, extend working life, bowl-type pad and lower bowl-type pad directly can be replaced with in addition during maintenance, easy to maintenance, reduce user cost.
In above-mentioned a kind of differential assembly, the outer periphery of described upper bowl-type pad exceeds the top sides edge of upper planetary gear and extends in left shoe cream room, right shoe cream room, and the outer periphery of described lower bowl-type pad exceeds the bottom sides edge of lower planetary gear and extends in left shoe cream room, right shoe cream room.The support effects going up bowl-type pad and lower bowl-type pad is like this good, and enhances plugging action, avoids leakage of oil.
In above-mentioned a kind of differential assembly, described housing offers several positioning holes, one of them positioning hole arranges through straight pin and is equipped with the resilient key of interference fit in this positioning hole.Positioning hole instead of locating column in the past, and such housing periphery is easy to process, resilient key be arranged so that straight pin fixation.
In above-mentioned a kind of differential assembly, described left half axle gear and right axle shaft gear all have external splines.Be convenient to like this install.
In above-mentioned a kind of differential assembly, described housing two ends are all arranged with bearing.Bearing plays supporting and damping effect, extends the working life of housing.
In above-mentioned a kind of differential assembly, described housing adopts lightweight aluminium material to make, and described upper bowl-type pad and lower bowl-type pad are made by Elastic Steel.
Compared with prior art, the reasonable in design of this differential assembly is compact, upper planetary gear, lower planetary gear effectively can be avoided the wearing and tearing of housing, extend working life, and high lubricating effect, easy to maintenance, and processing is installed all convenient and swift in addition.
Accompanying drawing explanation
Fig. 1 is that the structure of this differential assembly cuts open schematic diagram.
In figure, 1, housing; 2, left half axle gear; 3, right axle shaft gear; 4, upper planetary gear; 5, lower planetary gear; 6, straight pin; 7, left shoe cream room; 8, right shoe cream room; 9, upper bowl-type pad; 10, lower bowl-type pad; 11, positioning hole; 12, resilient key; 13, bearing.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this differential assembly comprises housing 1, left half axle gear 2, right axle shaft gear 3, upper planetary gear 4, lower planetary gear 5 and straight pin 6, left half axle gear 2 and right axle shaft gear 3 are symmetrical set in housing 1, upper planetary gear 4, lower planetary gear 5 is engaged in left half axle gear 2 and right axle shaft gear 3 jointly, straight pin 6 is connected with housing 1 with lower planetary gear 5 mutually through upper planetary gear 4, housing 1 offers and is positioned at left half axle gear 2 and upper planetary gear 4, the left shoe cream room 7 of lower planetary gear 5 engagement place, housing 1 also offers and is positioned at right axle shaft gear 3 and upper planetary gear 4, the right shoe cream room 8 of lower planetary gear 5 engagement place, bowl-type pad 9 is provided with between upper planetary gear 4 and housing 1, lower bowl-type pad 10 is provided with between lower planetary gear 5 and housing 1, straight pin 6 is arranged through upper bowl-type pad 9 and lower bowl-type pad 10.
Describe in detail further, the present embodiment middle shell 1 adopts lightweight aluminium material to make, and upper bowl-type pad 9 and lower bowl-type pad 10 are made by Elastic Steel.The outer periphery of upper bowl-type pad 9 exceeds the top sides edge of upper planetary gear 4 and extends in left shoe cream room 7, right shoe cream room 8, and the outer periphery of lower bowl-type pad 10 exceeds the bottom sides edge of lower planetary gear 5 and extends in left shoe cream room 7, right shoe cream room 8; For the ease of installing, housing 1 offers several positioning holes 11, one of them positioning hole 11 arranges through straight pin 6 and is equipped with the resilient key 12 of interference fit in this positioning hole 11, and left half axle gear 2 and right axle shaft gear 3 all have external splines, and housing 1 two ends are all arranged with bearing 13.
This differential assembly is by the setting of left shoe cream room 7 and right shoe cream room 8, make oil refill in left half axle gear 2, right axle shaft gear 3 and upper planetary gear 4, lower planetary gear 5 engagement place, the lubrication of engagement place is abundant, go up bowl-type pad 9 in addition and lower bowl-type pad 10 all has buffer function, there is certain resilience extending amount, effectively can avoid the wearing and tearing of upper planetary gear 4, lower planetary gear 5 pairs of housing 1 inwalls, extend working life, bowl-type pad 9 and lower bowl-type pad 10 directly can be replaced with in addition during maintenance, easy to maintenance, reduce user cost.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.

Claims (6)

1. a differential assembly, comprise housing (1), left half axle gear (2), right axle shaft gear (3), upper planetary gear (4), lower planetary gear (5) and straight pin (6), described left half axle gear (2) and right axle shaft gear (3) are symmetrical set in housing (1), described upper planetary gear (4), lower planetary gear (5) is engaged in left half axle gear (2) and right axle shaft gear (3) jointly, straight pin (6) to be connected with housing (1) with lower planetary gear (5) mutually through upper planetary gear (4), it is characterized in that, described housing (1) offers and is positioned at left half axle gear (2) and upper planetary gear (4), the left shoe cream room (7) of lower planetary gear (5) engagement place, housing (1) also offers and is positioned at right axle shaft gear (3) and upper planetary gear (4), the right shoe cream room (8) of lower planetary gear (5) engagement place, bowl-type pad (9) is provided with between described upper planetary gear (4) and housing (1), lower bowl-type pad (10) is provided with between described lower planetary gear (5) and housing (1), described straight pin (6) is arranged through upper bowl-type pad (9) and lower bowl-type pad (10).
2. a kind of differential assembly according to claim 1, it is characterized in that, the outer periphery of described upper bowl-type pad (9) exceeds the top sides edge of upper planetary gear (4) and extends in left shoe cream room (7), right shoe cream room (8), and the outer periphery of described lower bowl-type pad (10) exceeds the bottom sides edge of lower planetary gear (5) and extends in left shoe cream room (7), right shoe cream room (8).
3. a kind of differential assembly according to claim 1 and 2, it is characterized in that, described housing (1) offers several positioning holes (11), and one of them positioning hole (11) arranges through straight pin (6) and is equipped with the resilient key (12) of interference fit in this positioning hole (11).
4. a kind of differential assembly according to claim 1 and 2, is characterized in that, described left half axle gear (2) and right axle shaft gear (3) all have external splines.
5. a kind of differential assembly according to claim 1 and 2, is characterized in that, described housing (1) two ends are all arranged with bearing (13).
6. a kind of differential assembly according to claim 1 and 2, is characterized in that, described housing (1) adopts lightweight aluminium material to make, and described upper bowl-type pad (9) and lower bowl-type pad (10) are made by Elastic Steel.
CN201620104309.XU 2016-02-02 2016-02-02 Differential mechanism subassembly Active CN205226320U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620104309.XU CN205226320U (en) 2016-02-02 2016-02-02 Differential mechanism subassembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620104309.XU CN205226320U (en) 2016-02-02 2016-02-02 Differential mechanism subassembly

Publications (1)

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CN205226320U true CN205226320U (en) 2016-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109356990A (en) * 2018-10-31 2019-02-19 韶关市广控机械传动技术有限公司 A kind of differential assembly of Double-gear input
WO2019214227A1 (en) * 2018-05-07 2019-11-14 江苏太平洋精锻科技股份有限公司 High-precision differential using elastic members

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019214227A1 (en) * 2018-05-07 2019-11-14 江苏太平洋精锻科技股份有限公司 High-precision differential using elastic members
CN109356990A (en) * 2018-10-31 2019-02-19 韶关市广控机械传动技术有限公司 A kind of differential assembly of Double-gear input

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