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Guide type jaw self-locking differential

A differential, guided technology, applied in the direction of differential transmission, belt/chain/gear, mechanical equipment, etc., can solve the problem of reducing work reliability, increasing difficulty and cost, and increasing the difficulty of controlling the axial impact of the blocking ring Strength and other issues to achieve the effect of reducing the speed difference and reducing the impact/impact strength

Inactive Publication Date: 2015-07-22
洪涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, excessive elastic fitting force increases the difficulty of controlling the blocking ring and the axial impact force when fitting. In turn, the difficulty of control increases the requirements for the stability and precision of the elastic element parameters, thus increasing the It increases the difficulty and cost of production and assembly, and reduces the reliability of work

Method used

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  • Guide type jaw self-locking differential
  • Guide type jaw self-locking differential
  • Guide type jaw self-locking differential

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Guided dog-type self-locking differential D1 with guide ratchet

[0030] FIG. 1 shows a schematic diagram of a differential D1 in its most common form. By means of a set of bolts 226, the two differential cases 220 fasten the large ring gear 222 for inputting the driving torque and the driving ring 50 with the cross shaft for distributing the driving torque from the left and right sides into one body , and defines the axis of rotation X. In the stepped holes arranged around the axis X at the inner ends of the two differential cases 220, two spline hubs 190a and 190b are rotatably arranged respectively, and spline teeth are respectively arranged on the inner peripheral surfaces of the hubs for connecting with the inserting hubs. The two half-shafts with complementary spline teeth mounted therein are respectively coupled and output drive torque thereto. Two axially movable driven rings 60a and 60b are fitted on the outer peripheral surfaces of the two spli...

Embodiment 2

[0050] Embodiment 2: Guided jaw self-locking differential D2 with lead-in ring

[0051] see Figure 6 As shown in Figure 1, the improvement of differential D2 relative to differential D1 is first of all, by adding two lead-in rings 110 as shown in Figure 7, the fixed-point lead-in mechanism in differential D1 is split into lead-in and ratchet-type fixed-point Two independent mechanisms are actuated. That is, its introduction mechanism is arranged between the introduction ring 110 and the driven ring 60 , and its fixed-point actuating mechanism is arranged between the introduction ring 110 and the driving ring 50 . Wherein, a group of at least one (three in this embodiment) introduction teeth 112 arranged on the inner peripheral surface of the introduction ring 110 radially protrudes into respective corresponding introduction tooth grooves 72 through the groove inlet 70, by setting The corresponding cooperation of the helical introduction engaging surfaces 114 and 74 with com...

Embodiment 3

[0061] Embodiment 3: Guided jaw self-locking differential without control ring

[0062] This exemplary embodiment represents the simplest embodiment of the invention. It no longer has a splined hub 190 and control ring 100, no circumferential and axial positioning mechanisms, nor any support members.

[0063] 1, the driving ring 50 of this embodiment is directly coupled with the inner peripheral surface of the torque input gear ring such as the intermediate differential by means of spline teeth on its outer peripheral surface to receive its driving torque, and through two The driven rings 60a and 60b respectively directly drive the rotation of two half-shafts, not shown, which are spline-coupled in their respective bores, see FIG. 11 . Driven rings 60a and 60b constitute a single lead-out mechanism by direct engagement between respective lead-out teeth 66a and 66b. In the driving state, there is no problem with the above-mentioned derivation mechanism.

[0064] Referring to...

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Abstract

The invention discloses a guide type jaw self-locking differential. In the differential, two key members, namely an embedding spring and a stopping / silencing ring which increase manufacturing and assembly difficulties in the prior art, are substituted by a rotary lead-in mechanism which is arranged between a driven ring and a driving ring and a fixed-point actuating mechanism for actuating the rotary lead-in mechanism; the two mechanisms, which are preferably lead-in ratchet mechanisms, can ensure that the embedding motion of the driven ring relative to the driving ring constantly has the same height and relatively fixed starting point and track, so that mechanical wear and frictional resistance torque between tops of lead-out teeth in a differential state are eliminated, the working life of the differential is obviously prolonged, and the bearing capacity of the differential is obviously improved; in addition, an actuating selection mechanism which can selectively invalidate the fixed-point actuating mechanism corresponding to the same circumferential direction is also arranged. All the mechanisms are adaptive mechanical mechanisms.

Description

[0001] related application [0002] The present invention is a subordinate patent application of the applicant's Chinese patent applications 200810161306.X and 200820119499.8, the entire contents of which are incorporated / incorporated by reference. technical field [0003] The invention relates to a differential transmission device in the field of mechanical transmission, in particular but not only to a tooth-embedded self-locking differential for wheeled vehicles. technical background [0004] According to the Chinese patent application 200710152155.7 proposed by the applicant, the basic tooth-embedded self-locking differential well solves the complex structure, too strict requirements for springs and assembly, insufficient reliability and problems of the prior art. Lifespan is not long enough and so on. However, it still has room for improvement, that is, it still partly has the same common shortcomings as its previous prior art. For example, there are fitting springs an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H48/12F16H48/20F16H48/38F16H48/24
Inventor 洪涛
Owner 洪涛