CN102889358A

CN102889358A - Novel differential

Info

Publication number: CN102889358A
Application number: CN2012103707392A
Authority: CN
Inventors: 盛阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2013-01-23
Anticipated expiration: 2032-09-29
Also published as: CN102889358B

Abstract

A novel differential relates to an auto spare part. A driving wheel is arranged on a support, the driving wheel is connected with a driven wheel, a planet wheel shaft is arranged below the driven wheel, a left half shaft and a right half shaft are arranged on both sides of the planet wheel shaft, and a left half shaft gear and a right half shaft gear are arranged between the planet wheel shaft and the left half shaft and the right half shaft; and a small planet wheel is installed on the planet wheel shaft, a big planet wheel is fixedly connected at the outer side of the small planet wheel, the big planet wheel is meshed with an unidirectional rotating gear, the unidirectional rotating gear is connected with a ratchet wheel via a transmission device, and a forward check ratchet and a reverse check ratchet are arranged on the periphery of the ratchet device. With the novel differential, the power transmission efficiency is increased, the novel differential has the function of preventing unilateral idle, namely the function of differential locking, has quick response speed and does not have response time for unlocking, the function of only quickly exerting unilateral idle prevention when needed is ensured, the function of an ordinary differential is instantly recovered when unneeded, and the novel differential has extremely small abrasion, small rigid impact and low cost.

Description

A kind of Novel differential gear

Technical field:

The present invention relates to a kind of auto parts machinery, be specifically related to a kind of Novel differential gear.

Background technique:

Automobile differential is the main part that drives sedan-chair, its effect is exactly in the semiaxis transferring power of both sides, allow the both sides semiaxis with different rotating speed rotations, satisfied two sidecar wheels are not done with the form of pure rolling as far as possible and are equidistantly travelled, reduce the friction on tire and ground, ADB all is friction type generally in the course of the work, be similar to clutch, but have wearing and tearing to also have the reaction time; The manifold type differential mechanism, rigid impulse is larger, and after locked, just do not possess the differential mechanism function, i.e. said turning function on the automobile, present difference device lock high expensive, most domestic car SUV are not equipped with, can prevent that the one-sided Torsen differential mechanism cost that skids is very big, economic serviceability is bad, and face and the multipotency of power that passes to hesive wheel reach 85%.

Summary of the invention:

The purpose of this invention is to provide a kind of Novel differential gear, it has improved power transmission efficiency, possessed the function that prevents one-sided idle running, it is the function of ADB, fast response time, the response time of not unclamping, guaranteed only in needs, to bring into play fast the function of anti-one-sided idle running, the function of momentary recovery open differential in the time of unwanted, it is minimum to wear and tear, and rigid impulse is very little, and is with low cost, in use limit the rotating ratio of both sides semiaxis, the dally phenomenon of a side stall of a side can not occur.

In order to solve the existing problem of background technique, the present invention is by the following technical solutions: it comprises support 1, follower 2, driving wheel 3, planet wheel shaft 4, major planets wheel 5, asteroid wheel 6, the non-return ratchet 7 of forward, ratchet unit 8, reverse non-return ratchet 9, transmission device 10, single direction rotation gear 11, right axle shaft gear 12 and left half axle gear 13, be provided with driving wheel 3 on the support 1, driving wheel 3 is connected with follower 2, the below of follower 2 is provided with planet wheel shaft 4, the both sides of planet wheel shaft 4 are provided with left half axle and right axle shaft, be provided with left half axle gear 13 and right axle shaft gear 12 between planet wheel shaft 4 and left half axle and the right axle shaft, asteroid wheel 6 is installed on the planet wheel shaft 4, the outside of asteroid wheel 6 is fixedly connected with major planets wheel 5, and

major planets wheel

5 and 11 engagements of single direction rotation gear, single direction rotation gear 11 is connected with ratchet unit 8 by transmission device 10, is provided with the non-return ratchet 7 of forward and reverse non-return ratchet 9 around the ratchet unit 8.

The non-return ratchet 7 of described forward and reverse non-return ratchet 9 cooperate with ratchet unit 8, and the applying by controlling the non-return ratchet 7 of forward and reverse non-return ratchet 9 and ratchet unit 8 realizes the forward of ratchet unit 8 and reverse stuck with leaving.

Described ratchet unit 8 is the opposite common ratchet of both direction or reversible ratchet.

The non-return ratchet 7 of described forward and reverse non-return ratchet 9 can be two-way ratchet and unidirectional ratchet.

Working principle of the present invention is: when the follower sense of rotation is forward, when two reverse ratchets leave ratchet, and two forward ratchets and ratchet are when fitting, the ratchet that can guarantee the left and right sides can only be rotated in the forward or stop, can only be rotated in the forward simultaneously or stop simultaneously so just realized left and right sides differential gear, when the counterrotating of needs follower, can control the non-return ratchet of forward and leave ratchet, reverse non-return ratchet applying ratchet just can realize being rotated in the forward identical performance.

The reference cone angle of asteroid wheel is δ 1 among the present invention, the reference cone angle of major planets wheel is δ 2, and δ 2 must be greater than δ 1, then differential gear rotating ratio in the left and right sides is at (tan δ 2-tan δ 1): (tan δ 2+tan δ 1) and (tan δ 2+tan δ 1): between (tan δ 2-tan δ 1), δ 2 must could realize that differential mechanism limits the in the same way function of rotating ratio greater than δ 1.

The present invention has following beneficial effect: it has improved power transmission efficiency, possessed the function that prevents one-sided idle running, i.e. the function of ADB, fast response time, the response time of not unclamping, guaranteed only in needs, to bring into play fast the function of anti-one-sided idle running, the function of momentary recovery open differential in the time of unwanted, it is minimum to wear and tear, rigid impulse is very little, with low cost, in use limit the rotating ratio of both sides semiaxis, the dally phenomenon of a side stall of a side can not appear.

Description of drawings:

Fig. 1 is structural representation of the present invention;

Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic representation.

Embodiment:

With reference to Fig. 1-2, this embodiment is taked following technological scheme: it comprises support 1, follower 2, driving wheel 3, planet wheel shaft 4, major planets wheel 5, asteroid wheel 6, the non-return ratchet 7 of forward, ratchet unit 8, reverse non-return ratchet 9, transmission device 10, single direction rotation gear 11, right axle shaft gear 12 and left half axle gear 13, be provided with driving wheel 3 on the support 1, driving wheel 3 is connected with follower 2, the below of follower 2 is provided with planet wheel shaft 4, the both sides of planet wheel shaft 4 are provided with left half axle and right axle shaft, be provided with left half axle gear 13 and right axle shaft gear 12 between planet wheel shaft 4 and left half axle and the right axle shaft, asteroid wheel 6 is installed on the planet wheel shaft 4, the outside of asteroid wheel 6 is fixedly connected with major planets wheel 5, and

major planets wheel

The working principle of this embodiment is: when the follower sense of rotation is forward, when two reverse ratchets leave ratchet, and two forward ratchets and ratchet are when fitting, the ratchet that can guarantee the left and right sides can only be rotated in the forward or stop, can only be rotated in the forward simultaneously or stop simultaneously so just realized left and right sides differential gear, when the counterrotating of needs follower, can control the non-return ratchet of forward and leave ratchet, reverse non-return ratchet applying ratchet just can realize being rotated in the forward identical performance.

The reference cone angle of asteroid wheel is δ 1 in this embodiment, the reference cone angle of major planets wheel is δ 2, and δ 2 must be greater than δ 1, then differential gear rotating ratio in the left and right sides is at (tan δ 2-tan δ 1): (tan δ 2+tan δ 1) and (tan δ 2+tan δ 1): between (tan δ 2-tan δ 1), δ 2 must could realize that differential mechanism limits the in the same way function of rotating ratio greater than δ 1.

This embodiment has following beneficial effect: it has improved power transmission efficiency, possessed the function that prevents one-sided idle running, it is the function of ADB, fast response time, the response time of not unclamping, guaranteed only in needs, to bring into play fast the function of anti-one-sided idle running, the function of momentary recovery open differential in the time of unwanted, it is minimum to wear and tear, rigid impulse is very little, with low cost, in use limit the rotating ratio of both sides semiaxis, the dally phenomenon of a side stall of a side can not appear.

Claims

1. Novel differential gear, it is characterized in that it comprises support (1), follower (2), driving wheel (3), planet wheel shaft (4), major planets wheel (5), asteroid wheel (6), the non-return ratchet of forward (7), ratchet unit (8), reverse non-return ratchet (9), transmission device (10), single direction rotation gear (11), right axle shaft gear (12) and left half axle gear (13), be provided with driving wheel (3) on the support (1), driving wheel (3) is connected with follower (2), the below of follower (2) is provided with planet wheel shaft (4), the both sides of planet wheel shaft (4) are provided with left half axle and right axle shaft, be provided with left half axle gear (13) and right axle shaft gear (12) between planet wheel shaft (4) and left half axle and the right axle shaft, asteroid wheel (6) is installed on the planet wheel shaft (4), the outside of asteroid wheel (6) is fixedly connected with major planets wheel (5), and major planets wheel (5) and single direction rotation gear (11) engagement, single direction rotation gear (11) is connected with ratchet unit (8) by transmission device (10), is provided with the non-return ratchet of forward (7) and reverse non-return ratchet (9) around the ratchet unit (8).

2. described a kind of Novel differential gear according to claim 1 is characterized in that described ratchet unit (8) is the opposite common ratchet of both direction.

3. described a kind of Novel differential gear according to claim 1 is characterized in that described ratchet unit (8) is reversible ratchet.

4. described a kind of Novel differential gear according to claim 1 is characterized in that the non-return ratchet of described forward (7) and reverse non-return ratchet (9) can be two-way ratchet and unidirectional ratchet.

5. described a kind of Novel differential gear according to claim 1, it is characterized in that the non-return ratchet of described forward (7) and reverse non-return ratchet (9) cooperate with ratchet unit (8), the applying by controlling the non-return ratchet of forward (7) and reverse non-return ratchet (9) and ratchet unit (8) realizes the forward of ratchet unit (8) and reverse stuck with leaving.

6. described a kind of Novel differential gear according to claim 1, when it is characterized in that described follower sense of rotation is forward, when two reverse ratchets leave ratchet, and two forward ratchets and ratchet are when fitting, the ratchet that can guarantee the left and right sides can only be rotated in the forward or stop, so just having realized left and right sides differential gear can only be rotated in the forward or stop simultaneously simultaneously, when the counterrotating of needs follower, can control the non-return ratchet of forward and leave ratchet, reverse non-return ratchet applying ratchet just can realize being rotated in the forward identical performance.

7. described a kind of Novel differential gear according to claim 1, the reference cone angle that it is characterized in that described asteroid wheel is δ 1, the reference cone angle of major planets wheel is δ 2, and δ 2 must be greater than δ 1, then differential gear rotating ratio in the left and right sides is at (tan δ 2-tan δ 1): (tan δ 2+tan δ 1) and (tan δ 2+tan δ 1): between (tan δ 2-tan δ 1), δ 2 must could realize that differential mechanism limits the in the same way function of rotating ratio greater than δ 1.