CN209892714U

CN209892714U - Quick assembly installation compact transmission differential mechanism structure

Info

Publication number: CN209892714U
Application number: CN201822173110.4U
Authority: CN
Inventors: 朱贤仲
Original assignee: SAIC Motor Corp Ltd
Current assignee: SAIC Motor Corp Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2020-01-03
Anticipated expiration: 2028-12-24

Abstract

The utility model relates to a quick assembly installation compact transmission differential mechanism structure, including driven gear, planetary gear locating pin, planetary gear round pin axle, casing, side gear, bearing, driven gear locating pin, planetary gear gasket, planetary gear and semi-axis, side gear cover locates on the semi-axis, the semi-axis passes through the bearing to be installed on the casing, planetary gear passes through planetary gear gasket, planetary gear locating pin and planetary gear round pin axle fastening is on the casing, the casing is outer to all offer the recess with driven gear inner periphery, the recess is the arc wall or rectangle, the casing passes through this recess joint to driven gear, casing and driven gear all offer the locating pin hole, and driven gear locating pin penetrates in the locating pin hole, fix casing and driven gear, the locating pin hole that the casing was offered is the through-hole, the locating pin hole that driven gear offered is the blind hole, the driven gear locating pin is two covers and establishes and all has the C type ring of the power that outwards expands, and the opening direction of the C-shaped ring is opposite.

Description

Quick assembly installation compact transmission differential mechanism structure

Technical Field

The utility model relates to the field of automotive technology, especially, relate to a quick assembly installation compact transmission differential mechanism structure.

Background

The automobile differential is a main component of a drive axle, and has the functions of transmitting power to the half shafts on two sides, allowing the half shafts on two sides to rotate at different rotating speeds, meeting the requirement that wheels on two sides run in a pure rolling mode at different distances as far as possible, and reducing the friction between tires and the ground; the differential case is an important structure for protecting the various components inside the differential for long-term, efficient operation. When an existing traditional differential case is designed, the traditional differential case generally comprises a differential case and a driven gear, 10-14 bolts are arranged between the two parts along the circumferential direction to enable the two parts to be connected, and the axes of the bolts are parallel to the axis of the driven gear. The assembly needs to be carried out by screwing more than ten bolts, the time of thread assembly is long, and the production period is long, so that the technical problem which needs to be solved by the technical personnel in the field is that the assembly time is shortened by providing a differential mechanism.

SUMMERY OF THE UTILITY MODEL

The utility model discloses problem and not enough to prior art exist provide a quick assembly installation compact transmission differential mechanism structure.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides a quick assembly installation compact transmission differential mechanism structure, which is characterized by comprising a driven gear, a planet gear positioning pin, a planet gear pin shaft, a shell, a half axle gear, a bearing, a driven gear positioning pin, a planet gear gasket, a planet gear and a half axle;

the half shaft gear is sleeved on the half shaft, the half shaft is arranged on the shell through the bearing, and the planetary gear is fixed on the shell through the planetary gear gasket, the planetary gear positioning pin and the planetary gear pin;

the outer axial of this casing and the interior week of this driven gear all set up flutedly, and this recess is arc wall or rectangle, and this casing passes through this recess joint in this driven gear, and this casing and this driven gear have all set up the locating pin hole, and this driven gear locating pin wears to penetrate in this locating pin hole, with this casing and this driven gear reciprocal anchorage.

Preferably, the positioning pin hole formed in the housing is a through hole, and the positioning pin hole formed in the driven gear is a blind hole.

Preferably, the driven gear positioning pin is two sleeved C-shaped rings with outward expansion force, and the opening directions of the C-shaped rings are opposite.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses a recess joint realizes the fixed of driven gear and casing to through the interact of recess, realize the assumption to the moment of torsion, because the joint mode does not need threaded connection, does not need the operator to twist the screw thread when connecting, only need the cartridge can, consequently shortened installation time, shortened production cycle.

In addition, because the driven gear positioning pin does not have threads, an operator does not need to screw the threads during connection, only the driven gear positioning pin needs to be inserted, the shell and the driven gear can be prevented from being separated in the axis direction, the driven gear positioning pin can be arranged along the radial direction, the influence of the torsional tangential force on the driven gear positioning pin can be relieved, the driven gear positioning pin is designed on the inner side of the shell and is arranged along the reverse direction of the centrifugal force, the driven gear positioning pin can be tightened more and more along the action of the rotary centrifugal force of the differential, and the possibility that the driven gear positioning.

The locating pin is two C type rings, and its combined action is outside bulging force bigger, and work is more stable, has certain outside inflation pretightning force after the C type ring installation, plays fixed other part effects after installing in the hole, can not the slippage, and the diameter of C type ring will be greater than the hole diameter when under the natural state, presss from both sides tight C type ring patchhole with the help of the instrument during the installation in, because the outside bulging force of C type ring for in its fixed hole site.

Drawings

Fig. 1 is a cross-sectional view of a quick-mount compact transmission differential construction in accordance with a preferred embodiment of the present invention.

Fig. 2 is a side view of a preferred embodiment of the present invention in a quick-mount compact transmission differential configuration.

Fig. 3 is a schematic structural view of the driven gear positioning pin according to the preferred embodiment of the present invention.

Fig. 4 is a sectional view of the driven gear positioning pin in the direction of a-a according to the preferred embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

1-4, the present embodiment provides a quick-install, compact transmission differential structure that includes a driven gear 1, a planetary gear dowel pin 2, a planetary gear pin 3, a case 4, a side gear 5, a bearing 6, a driven gear dowel pin 7, a planetary gear spacer 8, a planetary gear 9, and a half shaft 10.

The half shaft gear 5 is sleeved on a half shaft 10, the half shaft 10 is installed on the shell 4 through a bearing 6, and the planet gear 9 is fixed on the shell 4 through a planet gear gasket 8, a planet gear positioning pin 2 and a planet gear pin shaft 3.

The outer axial of casing 4 and driven gear 1's internal week all is seted up fluted 11, and casing 4 passes through 11 joints of recess in driven gear 1, through the interact between two recesses 11, realizes assuming to the moment of torsion.

Locating pin holes have all been seted up to casing 4 and driven gear 1, and driven gear locating pin 7 wears to penetrate in locating pin holes, with casing 4 and driven gear 1 reciprocal anchorage, the axis of locating pin hole is on a parallel with driven gear 1 place plane, and driven gear locating pin 7's axis is along driven gear 1's radial arrangement, this design can prevent that casing 4 and driven gear 1 from taking place the separation in the axis direction, driven gear locating pin 7 still can alleviate the influence of twisting tangential force to driven gear locating pin 7 along radial arrangement, in actual production, also can set up driven gear locating pin 7's axis to have certain contained angle with driven gear 1's radial.

The locating pin hole that casing 4 was seted up is the through-hole, and the locating pin hole that driven gear 1 was seted up is the blind hole, can prevent to break away from in leading to driven gear locating pin 7 from the pinhole because of the effect of centrifugal force, can set for according to the needs of difference to the size of pinhole, and all in protection range.

Driven gear locating pin 7 establishes and all has the C type ring of the power of outside inflation for two covers, and the opening opposite direction on C type ring, two C type ring cover establish together make the C type ring be in the inflation state because the effect of restoring force after the installation, thereby guarantee that driven gear locating pin 7 has the pretightning force all the time in the pinhole, the stability of assembly between driven gear locating pin 7 and the pinhole has been improved, can reduce the possibility that driven gear locating pin 7 breaks away from in the pinhole, driven gear locating pin 7 designs at 4 inboards and along centrifugal force reverse arrangement of casing, along with the rotatory centrifugal force effect of differential mechanism, driven gear locating pin 7 can be tighter and tighter, driven gear locating pin 7 when having solved the rotation of differential mechanism casing flies to take off the possibility easily.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A quick assembly installation compact type transmission differential mechanism structure is characterized by comprising a driven gear, a planetary gear positioning pin, a planetary gear pin shaft, a shell, a half axle gear, a bearing, a driven gear positioning pin, a planetary gear gasket, a planetary gear and a half axle;

2. The quick-mount compact transmission differential structure as recited in claim 1 in which the housing defines alignment pin holes that are through holes and the driven gear defines alignment pin holes that are blind holes.

3. The quick-mount compact transmission differential structure as recited in claim 1, wherein said driven gear set pins are two sleeved C-rings each having an outwardly expanding force, and wherein said C-rings open in opposite directions.