CN217761787U - Synchronizer compatible with fuel vehicle and new energy vehicle - Google Patents

Abstract

The utility model discloses a synchronizer of compatible fuel car and new forms of energy car, including tooth hub, ejector pad, synchronizer ring, the both ends of tooth hub all are equipped with the synchronizer ring, are equipped with the jack catch on the synchronizer ring, are equipped with first breach on the tooth hub, the jack catch is located first breach with the ejector pad, jack catch length is 6.0mm ~ 6.20mm for length, and thickness is 2.0mm ~ 2.05mm, and the width of be 12.0mm ~ 12.5mm. The utility model has the characteristics of intensity is good, can bear bigger moment of torsion, so the utility model discloses can satisfy the use of burning oil car and new forms of energy car synchronizer simultaneously.

Description

Synchronizer compatible with fuel vehicle and new energy vehicle

Technical Field

The utility model relates to the automotive filed, concretely relates to car synchronizer technical field.

Background

With the new trend of vehicle construction, new energy vehicles and traditional vehicles occupy the whole automobile industry, and although the vehicle construction technology is continuously mature, the new energy vehicles and the traditional vehicles still need to use a gearbox or a reduction gearbox.

The synchronizer is used as an indispensable part of a gearbox or a reduction gearbox and is mainly used for synchronizing the rotating speeds of a pair of gears needing to be meshed in a selected gear in the gear shifting process of a vehicle so as to realize smooth gear engagement; as shown in fig. 1, the synchronizer in the prior art includes a gear sleeve (not shown in the figure), a gear hub 2, a push block 3, the gear sleeve is sleeved on the gear hub 2, a plurality of first grooves 20 and second grooves 21 are arranged on the gear hub 2, synchronizing rings 4 are arranged at two ends of the gear hub 2, a plurality of claws 4b are arranged on the synchronizing rings 4, the claws 4b of the synchronizing rings 4 at two ends of the gear hub 2 are correspondingly located in the second grooves 21, and the push block 3 is located in the first grooves 20.

Moreover, in the prior art, the length of the jaw 4b is greater than or equal to 8.3mm, the width of the jaw is less than or equal to 10.45mm, the thickness of the jaw is greater than or equal to 2.05mm, too long a jaw length may cause the axial dimension of the whole synchronizing ring 4 to be increased, and the jaw cannot be adapted to new energy vehicles and conventional vehicles at the same time, too narrow a jaw 4b width may cause the root strength of the jaw 4b to be too low, and too thin a jaw 4b thickness may cause the jaw 4b to form a tear strip after being bent, which may affect the strength of the jaw 4 b.

Therefore, the synchronizer in the prior art cannot be used universally for new energy automobiles and traditional automobiles, the new energy automobiles are mainly driven by the motor, the motor is a high-efficiency motor, the new energy automobiles have the characteristics of high rotating speed and large torque, and the synchronizer of the traditional automobiles cannot bear, so that the synchronizer in the prior art cannot be used universally for the new energy automobiles and the traditional automobiles.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a compatible synchronizer that fires oil vehicle and new energy automobile can satisfy the use of new energy automobile and traditional car simultaneously, has enlarged the application range of synchronizer, reduces the parts machining and drops into, reduce cost.

The specific technical scheme for solving the problems is as follows:

a synchronizer compatible with a fuel vehicle and a new energy vehicle comprises a gear sleeve, a gear hub, a push block and a synchronizing ring, wherein the gear sleeve is sleeved on the gear hub, the gear hub comprises a body, a plurality of strip-shaped teeth are arranged along the circumferential surface of the body, a first gap is formed between each strip-shaped tooth and the body, the push block is positioned in the first gap, two ends of the gear hub are respectively provided with the synchronizing ring, a plurality of clamping jaws are uniformly distributed on the synchronizing ring, and the clamping jaws of the synchronizing rings at the two ends correspond to each other and are positioned in the same first gap;

a plurality of second notches are uniformly distributed on the inner ring of the synchronizing ring, and a protruding part is formed between every two adjacent second notches;

the two ends of the gear hub are also provided with an intermediate ring and an inner ring;

the intermediate ring is positioned between the synchronizing ring and the inner ring;

a third gap is arranged on the inner ring;

the third notch is matched with the protruding part;

the length of the clamping jaw is 6.0-6.20 mm, the thickness of the clamping jaw is 2.0-2.04 mm, and the width of the clamping jaw is 12.0-12.5 mm.

Furthermore, a fourth notch is arranged on the clamping jaw.

Further, the length of jack catch is 6.15mm, the thickness of jack catch is 2.01mm, the jack catch width is 12.4mm.

The utility model provides a synchronizer of compatible fuel car and new forms of energy car, at first, the jack catch on the synchronizer ring shares the same breach on the tooth hub with the ejector pad, through reducing the recess quantity on the tooth hub, lets the structure of tooth hub compacter, and intensity is promoted; secondly, establish the length of jack catch into 6.15mm, thickness establishes into 20.1mm, the width establishes into 12.4mm, shorten the length of jack catch, make whole synchronizer structure compacter, reduced the thickness of jack catch, when having guaranteed to make the synchronizer ring, the portion of bending is too thick and the condition in area appears tearing, increase the width of jack catch, make the width of the portion of bending also increase, indirectly strengthen the intensity after the jack catch is bent, finally, through foretell scheme, make intensity, the rigidity of this synchronizer obtain promoting, so when can satisfying traditional car, also can satisfy new energy automobile's high rotational speed, big moment of torsion, so the utility model provides a compatible fuel vehicle and new energy vehicle's synchronizer can accomplish both and compromise, realizes the general of synchronizer.

Drawings

FIG. 1 is a prior art synchronizer;

FIG. 2 is a perspective view of a synchronizer compatible with a fuel vehicle and a new energy vehicle;

FIG. 3 is an enlarged view of the jaws;

FIG. 4 is a schematic view of the engagement of the hub with the synchronizing ring and the dogs;

FIG. 5 is a perspective view of the synchronizer ring;

FIG. 6 is a schematic view of the engagement of the synchronizer ring, the intermediate ring and the inner ring;

fig. 7 is a schematic view of the bending part of the claw.

Reference numbers in the figures:

the tooth cover 1, tooth hub 2, tooth hub body 2a, bar tooth 2b, first breach 2c, ejector pad 3, synchronizing ring 4, toper tooth 4a, jack catch 4b, second breach 4c, fourth breach 4e, bellying 4d, intermediate ring 5, inner ring 6, third breach 6a, first recess 20, second recess 21.

Detailed Description

The present invention will be described in further detail with reference to the drawings and the detailed description.

As shown in fig. 2, 3, 4, 5 and 6, the synchronizer compatible with the fuel vehicle and the new energy vehicle comprises a gear sleeve 1, a gear hub 2, a push block 3 and a synchronizing ring 4, wherein the gear sleeve 1 is sleeved on the gear hub 2, the gear hub 2 comprises a gear hub body 2a, a plurality of strip-shaped teeth 2b are arranged along the circumferential surface of the gear hub body 2a, a first gap 2c is formed between the strip-shaped teeth 2b and the gear hub body 2a, the push block 3 is positioned in the first gap 2c, the synchronizing ring 4 is respectively arranged at two ends of the gear hub 2, a plurality of claws 4b are uniformly distributed on the synchronizing ring 4, the claws 4b of the synchronizing ring 4 at the two ends correspond to each other and are positioned in the same first gap 2c, a plurality of second gaps 4c are uniformly distributed on the inner ring of the synchronizing ring 4, and a protruding portion 4d is formed between two adjacent second gaps; the two ends of the gear hub 2 are also provided with an intermediate ring 5 and an inner ring 6; the intermediate ring 5 is located between the synchronizing ring 4 and the inner ring 6; a third gap 6a is arranged on the inner ring 6; the third notch 6a cooperates with the projection 4 d.

In the embodiment, a shifting fork groove on the gear sleeve 1 is shifted by a shifting fork device to drive the gear sleeve 1 to shift a pushing block 3 to push a synchronous ring left and right so as to realize synchronization; in the scheme, the push block 3 and the clamping jaws 4b of the synchronizing ring 4 positioned at two ends of the gear hub 2 share one first notch 2c, meanwhile, a plurality of second notches 4c are arranged on the inner ring of the synchronizing ring 4, a protruding part 4d is formed between every two adjacent second notches, then the inner ring 6 provided with the third notch 6a is matched with the synchronizing ring 4, the matching mode of the inner ring 6 is matched with the protruding part 4d in a concave-convex mode through the third notch 6a, then the intermediate ring 5 is arranged between the synchronizing ring 4 and the inner ring 6, and during synchronization, the clamping jaws 4b enable the inner ring 6, the intermediate ring 5 and the synchronizing ring 4 to generate friction force through friction surfaces between the rings, so that the speed difference between the gear hub 2 and a gear is reduced.

As shown in fig. 6, the jaw 4b is provided with a fourth notch 4e.

In this embodiment, through set up fourth breach 4e on jack catch 4b, on the one hand under the condition that does not weaken part intensity for synchronizer ring 4 is lighter, has reduced the friction area of jack catch 4b with ejector pad 3 simultaneously, improves synchronizer ring 4 and ejector pad 3's life, and on the other hand, fourth breach 4e can play the effect of discerning different synchronizer ring 4, selects wrong ground synchronizer ring 4 correspondingly when avoiding assembling.

As shown in fig. 3, in the present invention, the length L2 of the claw 4b is 6.0 mm-6.20 mm, the thickness L1 of the claw 4b is 2.0 mm-2.04 mm, and the width L3 of the claw 4b is 12.0 mm-12.5 mm. Preferably, the length of the jaw 4b is 6.15mm, the thickness of the jaw 4b is 2.01mm, and the width of the jaw 4b is 12.4mm.

In the scheme, the thickness L1 of the clamping jaw 4b is preferably set to be 2.01mm, and is reduced compared with the thickness (2.05 mm) of the clamping jaw 4b in the prior art, so that the clamping jaw 4b cannot be torn due to too thick bending in the manufacturing process; the width L3 of the jaw 4b is preferably set to be 12.4mm, the width is increased compared with the width of the jaw 4b in the prior art, on one hand, the width of the jaw 4b can be close to the width of the push block, so that the synchronous ring 4 and the gear hub 2 are matched more tightly, on the other hand, the width of the jaw 4b is increased, so that the root of the jaw 4b (namely the joint of the jaw 4b and the synchronous ring 4) is also increased, and the strength of the bending part of the jaw 4b is higher; the length L2 of the claw 4b is preferably set to 6.15mm, which is reduced compared to the length (8.3 mm) of the claw 4b of the prior art, and the reduction of the length of the claw 4b, on the one hand, reduces the space occupied by the whole synchronizer in order to make it narrower, and, on the other hand, reduces the length of the claw 4b so as not to interfere with the push block 3 because the claw 4b shares the first notch 2c with the push block 3.

As shown in fig. 7, the jaw 4b is provided with the jaw bending portion 10, in the prior art, the thickness of the jaw bending portion 10 is 1.77mm (represented by K1 in fig. 6 is the thickness of the jaw bending portion 10), and the main function of the jaw bending portion 10 is to enhance the strength of the jaw 4b after bending, so in the present embodiment, the thickness of the jaw bending portion 10 is preferably set to be 1.71mm, by shortening the thickness of the jaw bending portion 10, sufficient bending space is ensured when the jaw 4b is manufactured, and meanwhile, the condition that a tear tape is generated when the jaw 4b is bent due to too thick thickness of the jaw bending portion 10 is avoided, thereby ensuring the qualification rate of the jaw 4b and the whole synchronizing ring 4.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, but not to limit the technical solution, and not to limit the scope of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and the scope of the appended claims.

Claims (3)

1. The synchronizer compatible with the fuel vehicle and the new energy vehicle comprises a gear sleeve (1), a gear hub (2), a push block (3) and a synchronizing ring (4), wherein the gear sleeve (1) is sleeved on the gear hub (2), the gear hub (2) comprises a gear hub body (2 a), a plurality of strip-shaped teeth (2 b) are arranged along the circumferential surface of the gear hub body (2 a), a first gap (2 c) is formed between each strip-shaped tooth (2 b) and the corresponding body (2 a), the push block (3) is located in the first gap (2 c), the synchronizing ring (4) is respectively arranged at two ends of the gear hub (2), a plurality of clamping jaws (4 b) are uniformly distributed on the synchronizing ring (4), and the clamping jaws (4 b) of the synchronizing ring (4) at the two ends correspond to each other and are located in the same first gap (2 c), and the synchronizer is characterized in that;

a plurality of second notches (4 c) are uniformly distributed on the inner ring of the synchronizing ring (4), and a bulge (4 d) is formed between every two adjacent second notches;

the two ends of the gear hub (2) are also provided with an intermediate ring (5) and an inner ring (6);

the intermediate ring (5) is located between the synchronizing ring (4) and the inner ring (6);

a third gap (6 a) is arranged on the inner ring (6);

the third notch (6 a) is matched with the bulge (4 d);

the length of the clamping jaw (4 b) is 6.0-6.20 mm, the thickness of the clamping jaw (4 b) is 2.0-2.04 mm, and the width of the clamping jaw (4 b) is 12.0-12.5 mm.

2. The synchronizer for the compatible fuel vehicle and new energy vehicle of claim 1, characterized in that the claw (4 b) is provided with a fourth notch (4 e).

3. The synchronizer for the compatible fuel vehicle and the new energy vehicle as recited in claim 1, wherein the length of the claw (4 b) is 6.15mm, the thickness of the claw (4 b) is 2.01mm, and the width of the claw (4 b) is 12.4mm.

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