Torque-excited rotary guide type jaw overrunning clutch and self-locking differential

An overrunning clutch and guided technology, which is applied in the field of mechanical transmission, can solve the problems of high price, doubled cost, and accelerated mechanical wear of the mating teeth, and achieves the effects of convenient processing, simplified structure, and reliable mating

Active Publication Date: 2011-01-05
路亚科消防车辆制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is very harmful to the transmission system, and accelerates the mechanical wear of the mating teeth, reducing the reliability and service life of this type of differential
Second, in order to reduce the harm caused by the above-mentioned harmful impacts and reduce the requirements for material strength and surface strength, the tooth heights of the impacted teeth are all set very small (basically maintained at about 2 mm), which directly limits other teeth. Carrying capacity and application range
This directly doubles the cost, making it too expensive

Method used

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  • Torque-excited rotary guide type jaw overrunning clutch and self-locking differential
  • Torque-excited rotary guide type jaw overrunning clutch and self-locking differential
  • Torque-excited rotary guide type jaw overrunning clutch and self-locking differential

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: One-way overrunning clutch C1

[0042] see figure 1 , 3, 4, the clutch C1 in the form of shaft-shaft transmission is the simplest embodiment according to the present invention. It includes a first rotating guide mechanism M1, which is an axial fitting mechanism including a first guide member 50 and an intermediary member 70 . Among them, the ring-shaped first guide member 50 fixed on the first rotating shaft (not shown) rotating around the axis X through a flat key has a circular tubular base 58 extending to the right end formed on the radially inner side, and a radially outer right end There are sawtooth-shaped first guide teeth 52 evenly distributed on the circumferential direction of the surface, and the teeth have a helical-toothed guide surface 54 and a non-guide surface 56 parallel to the axis X, see FIG. 4( a ). Correspondingly, on the left end surface of the intermediary member 70 that is vacantly sleeved on the cylindrical base body 58, there ar...

Embodiment 2

[0065] Embodiment 2: Two-way overrunning clutch C5

[0066] Compared Figure 9 and Figure 6 It can be seen that this embodiment is the result of the following major improvements to the clutch C3, that is, an orientation mechanism M5 and an actuating mechanism are added, and in order to correspond to two different circumferential working directions, the first rotation guide mechanism M1 The non-guiding surfaces 56 and 76 are changed to be 54b and 74b symmetrical to the guiding surfaces 54a and 74a; each blocking tooth 102 has two blocking working surfaces 104a and 104b circumferentially symmetrically; each auxiliary blocking tooth 122 is circumferentially symmetrical. It has two blocking working surfaces 124a and 124b symmetrically, and just spans two short guide teeth 82 in the circumferential direction, see FIG. 12 .

[0067]Wherein, the cylindrical cam type actuating ring 160 of the actuating mechanism is rotatably and axially fixed on the outwardly extending tubular base...

Embodiment 3

[0078] Embodiment 3: Dental self-locking differential D1

[0079] see Figure 13 , 14. The differential D1 is essentially an improved application in which two two-way overrunning clutches C5 are coupled axially and two intermediary members 70 are linked circumferentially.

[0080] Its main improvement is that the first guide teeth 52 are symmetrically arranged on the two end surfaces of the first guide member 50, and the differential case 190 replaces the cup-shaped shell-type force limiting element 188 to encapsulate the two rotating guide mechanisms integrally, and the elastic The element 120 acts optimally directly between the intermediate members 70a and 70b, the two pin-and-slot orientation mechanisms M5 are independent of the two re-separation assurance mechanisms M4 and merge into one linked orientation mechanism M5. see Figure 13 , 14, the orientation pin 140 of the orientation mechanism M5, which is arranged on the midpoint of the tooth top surface of the right end...

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Abstract

The invention discloses an overrunning clutch. The clutch is characterized by comprising two interlinked rotary guide mechanisms M1 and M2, wherein the mechanism M2 which is separated in an overrunning way is provided with an embedding stop mechanism for stopping the embedding of the mechanism M2; the normally embedded mechanism M1 is provided with a re-separation guarantee mechanism for stopping re-engagement of the mechanism M1 in a stop working condition, so that the embedding restoration of the mechanism M2 is smoothly finished. Thus, a lunchbox locking differential which is formed by connecting the overrunning clutches in a duplex way completely eliminates high-frequency collision and noise in the prior art, reduces mechanical wear, improves the bearing capacity and prolongs the life; and most importantly, expensive titanium alloy is not needed any more, so the manufacturing cost of the locker differential is greatly reduced.

Description

technical field [0001] The present invention relates to an overrunning clutch device in the field of mechanical transmission, and other transmission devices including such a clutch device, such as a shaft coupling, a sliding device or a self-locking differential, particularly but not exclusively to a Overrunning clutch with face engaging teeth. Background technique [0002] According to the overrunning clutches of the Chinese patent applications 200710152151.9 and 200710152152.3 proposed by the applicant, although they have significant advantages over the prior art in terms of performance and cost performance, they are easy to have the function of bidirectional work, and can obtain jaws better than the prior art Type self-locking differential, but it still has room for improvement. For example, in order to reduce the possibility of impact and tooth collapse during mating and ensure the reset of the mating, the power transmission teeth should preferably have a meshing surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D41/00F16H48/20F16H48/24
Inventor 洪涛
Owner 路亚科消防车辆制造有限公司
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