CN218670298U

CN218670298U - Multi-cone synchronizer assembly

Info

Publication number: CN218670298U
Application number: CN202223511148.0U
Authority: CN
Inventors: 江惟锋; 江天源; 王志林
Original assignee: Zhejiang Ruige Intelligent Technology Co ltd
Current assignee: Zhejiang Ruige Intelligent Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-03-21
Anticipated expiration: 2032-12-26

Abstract

The utility model provides a many cones synchronous ware assembly belongs to mechanical technical field. It has solved the current problem that synchronizer assembly frictional force is little and shift unstability. This many cones synchronizer assembly, including the tooth hub, the lateral part of tooth hub is equipped with the combination tooth respectively, the outside cover of tooth hub is equipped with the slip tooth cover that can the reciprocal translation of axial, be equipped with synchronous component between tooth hub and the combination tooth, synchronous component is equipped with interior taper ring including setting up in one side of tooth hub and from interior to exterior cover in proper order, intermediate ring and outer taper ring, the lateral wall of outer taper ring is equipped with outer profile of tooth portion one, the lateral wall that combines the tooth is equipped with outer profile of tooth portion two and outer profile of tooth portion two phase matchs, the inside wall of slip tooth cover is equipped with interior profile of tooth portion and slip tooth cover and can axial displacement make internal tooth profile of tooth portion and outer profile of tooth portion one and outer profile of tooth portion two phase meshing, interior taper ring, intermediate ring and outer taper ring all adopt punching press integrated into one piece structure. This many cones synchronous ware assembly has frictional force big, makes the advantage of shifting steadily.

Description

Multi-cone synchronizer assembly

Technical Field

The utility model belongs to the technical field of machinery, a synchronous ware, especially a many cones synchronous ware assembly is related to.

Background

In the prior art, the synchronizer has a locking pin type and an inertia sliding block locking ring type, and is mostly single cone, that is to say, the friction surface of the synchronizer is only one: for the input end with smaller rotational inertia, the single-cone synchronizer can meet the requirements, in particular to the speed changer of a passenger car; the synchronization time of the gear shift is generally; the synchronization time for engaging the low gear is 1.2s, and the synchronization time for engaging the high gear is 0.5s; however, as the load of the vehicle increases, such as the transmission of commercial vehicles and other heavy loads, the rotational inertia thereof increases, which means that the rotational speed of the output end of the transmission of commercial vehicles and other heavy loads is kept constant at the moment of shifting, and the input end is synchronized with the output end by friction. Due to the limitation of structures such as center distance and the like, the radial and axial sizes are enlarged to increase the synchronous capacity, which cannot be realized structurally and is difficult to realize; this results in a significant reduction in the practical effectiveness of the synchronizer, shift difficulties, early wear and rapid synchronizer failure.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a frictional force is big, made the steady many awl synchronous ware assembly of shifting.

The purpose of the utility model can be realized by the following technical proposal: many cones synchronous ware assembly, including the tooth hub, the lateral part of tooth hub be equipped with the combination tooth respectively, the outside cover of tooth hub be equipped with the slip tooth cover that can the reciprocal translation of axial, its characterized in that, the tooth hub with the combination tooth between be equipped with synchronous component, synchronous component including set up in one side of tooth hub and from interior to exterior in proper order the cover be equipped with interior taper ring, intermediate ring and outer taper ring, the lateral wall of outer taper ring be equipped with outer profile of tooth portion one, the lateral wall of combination tooth be equipped with outer profile of tooth portion two just outer profile of tooth portion one with outer profile of tooth portion two phase-match, the inside wall of slip tooth cover be equipped with interior profile of tooth portion just slip tooth cover can axial displacement make inner profile of tooth portion and outer profile of tooth portion two phase-engagements, inner taper ring, intermediate ring and outer taper ring all adopt punching press integrated into one piece structure.

Because the synchronous component that sets up between tooth hub and the combination tooth comprises interior taper ring, intermediate ring and outer taper ring, has increased the friction pair, has improved the friction torque of this synchronous ware to reach the steady quick advantage of shifting, interior taper ring, intermediate ring and outer taper ring all adopt punching press integrated into one piece structure, have low in manufacturing cost and the reliable advantage of structure.

In the above-mentioned multi-cone synchronizer assembly, the inner and outer side walls of the intermediate ring are friction surfaces, the outer side wall of the inner cone ring and the inner side wall of the outer cone ring are friction surfaces, and the friction surface of the intermediate ring is attached to both the friction surface of the inner cone ring and the friction surface of the outer cone surface.

In the multi-cone synchronizer assembly, the friction surface is treated by spraying molybdenum. The friction surface is treated by spraying molybdenum, so that the wear resistance is improved, and the service life is prolonged.

In the multi-cone synchronizer assembly, the friction surface is adhered with carbon fibers.

In the multi-cone synchronizer assembly, the taper of the inner conical surface and the taper of the outer conical surface of the intermediate ring are both 7-9 degrees. By adopting the arrangement, the multi-cone synchronizer assembly is suitable for commercial vehicles.

In the multi-cone synchronizer assembly, the two sides of the gear hub are both provided with the combination teeth, and the synchronization component is arranged between the combination teeth and the gear hub. The both sides of tooth hub all are equipped with and combine tooth and synchronizing assembly, and two combination teeth of being convenient for can combine with the gear that is located tooth hub both sides respectively, have the advantage that application scope is wide.

In the above-mentioned multi-cone synchronizer assembly, the outer end surface of the intermediate ring is provided with a plurality of protrusions extending along the inner side wall of the intermediate ring.

In the above-mentioned multi-cone synchronizer assembly, the number of the convex bodies is 4 to 8 and the convex bodies are uniformly arranged by taking the axis of the intermediate ring as the center.

In the multi-cone synchronizer assembly, the gear hub is provided with a pin and a spring, the inner side wall of the sliding gear sleeve is provided with a positioning groove, and the outer end of the pin can be embedded in the positioning groove.

Compared with the prior art, the multi-cone synchronizer assembly has the following advantages:

1. the synchronous component arranged between the gear hub and the combination gear consists of an inner conical ring, an intermediate ring and an outer conical ring, so that a friction pair is added, and the friction torque of the synchronizer is improved, thereby achieving the advantage of stable and quick gear shifting;

2. the inner conical ring, the middle ring and the outer conical ring are all integrally formed by stamping, and the inner conical ring, the middle ring and the outer conical ring have the advantages of low manufacturing cost and reliable structure;

3. the friction surfaces of the inner conical ring, the intermediate ring and the outer conical ring are treated by molybdenum spraying, so that the wear resistance is improved, and the service life is prolonged;

4. the both sides of tooth hub all are equipped with and combine tooth and synchronizing assembly, and two of being convenient for combine the tooth can combine with the gear that is located tooth hub both sides respectively, have the advantage that application scope is wide.

Drawings

FIG. 1 is a schematic cross-sectional view of the present multi-cone synchronizer assembly.

FIG. 2 is a schematic front view of the intermediate ring of the multi-cone synchronizer assembly.

Fig. 3 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of fig. 2.

FIG. 4 is a schematic cross-sectional view of an inner cone ring of the present multi-cone synchronizer assembly.

Fig. 5 is a schematic sectional view B-B of fig. 4.

In the drawings, 1, a gear hub; 2. a sliding gear sleeve; 2a, an internal tooth profile; 2b, positioning a groove; 3. an inner conical ring; 4. an intermediate ring; 4a, convex bodies; 5. an outer cone ring; 5a, a first external tooth profile part; 6. a coupling tooth; 6a and a second external tooth profile part; 7. a pin; 8. a spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 5, a multi-cone synchronizer assembly comprises a gear hub 1, combination teeth 6 are arranged on two sides of the gear hub 1, a sliding gear sleeve 2 capable of axially reciprocating and translating is sleeved on the outer side of the gear hub 1, a synchronization component is arranged between the gear hub 1 and the combination teeth 6, the synchronization component comprises an inner cone ring 3, a middle ring 4 and an outer cone ring 5 which are arranged on one side of the gear hub 1 and are sequentially sleeved from inside to outside, an outer tooth-shaped portion 5a is arranged on the outer side wall of the outer cone ring 5, an outer tooth-shaped portion 5a and an outer tooth-shaped portion 5a are arranged on the outer side wall of the combination teeth 6 and are matched with the outer tooth-shaped portion two 6a, an inner tooth-shaped portion 2a is arranged on the inner side wall of the sliding gear sleeve 2, the sliding gear sleeve 2 can axially move to enable the inner tooth-shaped portion 2a to be meshed with the outer tooth-shaped portion 5a and the outer tooth-shaped portion two 6a, and the inner cone ring 3, the middle ring 4 and the outer cone ring 5 are all of a stamped integrally formed structure.

The inner side wall and the outer side wall of the middle ring 4 are friction surfaces, the outer side wall of the inner cone ring 3 and the inner side wall of the outer cone ring 5 are friction surfaces, and the friction surface of the middle ring 4 is attached to the friction surface of the inner cone ring 3 and the friction surface of the outer cone surface. The friction surface is treated by spraying molybdenum, so that the wear resistance is improved, and the service life is prolonged. As another mode, carbon fibers are bonded to the friction surface.

The conicity of the inner conical surface and the outer conical surface of the intermediate ring 4 is 7-9 degrees, preferably, the conicity of the inner conical surface and the outer conical surface of the intermediate ring 4 is 8 degrees. The outer end face of the intermediate ring 4 is provided with a plurality of convex bodies 4a, the convex bodies 4a extend along the inner side wall of the intermediate ring 4, the number of the convex bodies 4a is 4-8, and the convex bodies 4a are uniformly arranged by taking the axis of the intermediate ring 4 as the center.

Be equipped with pin 7 and spring 8 on the tooth hub 1, the inside wall of slip tooth cover 2 is equipped with constant head tank 2b and the outer end of pin 7 can inlay in constant head tank 2 b.

Because the synchronous subassembly that sets up between tooth hub 1 and the combination tooth 6 comprises interior taper ring 3, intermediate ring 4 and outer taper ring 5, has increased the friction pair, has improved the friction torque of this synchronous ware to reach the steady quick advantage of shifting, interior taper ring 3, intermediate ring 4 and outer taper ring 5 all adopt punching press integrated into one piece structure, have low in manufacturing cost and the reliable advantage of structure. Both sides of tooth hub 1 all are equipped with combination tooth 6 and synchronizing assembly, and two combination teeth 6 of being convenient for can combine with the gear that is located tooth hub 1 both sides respectively, have the advantage that application scope is wide.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms hub 1, sliding sleeve 2, internal toothing 2a, positioning slot 2b, internal conical ring 3, intermediate ring 4, spur 4a, external conical ring 5, external toothing one 5a, coupling teeth 6, external toothing two 6a, pin 7, spring 8, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. Many cones synchronous ware assembly, including tooth hub (1), the lateral part of tooth hub (1) be equipped with combination tooth (6) respectively, the outside cover of tooth hub (1) be equipped with slip tooth cover (2) that can the reciprocal translation of axial, its characterized in that, tooth hub (1) with combination tooth (6) between be equipped with synchronizing assembly, synchronizing assembly including set up one side of tooth hub (1) and from interior to exterior in proper order the cover be equipped with interior awl ring (3), intermediate ring (4) and outer cone ring (5), the lateral wall of outer cone ring (5) be equipped with outer profile of tooth portion (5 a), the lateral wall that combines tooth (6) be equipped with outer profile of tooth portion two (6 a) just outer profile of tooth portion one (5 a) with outer profile of tooth portion two (6 a) phase-match, the inside wall of slip tooth cover (2) be equipped with inner profile of tooth portion (2 a) and slip tooth cover (2) can the axial displacement make inner profile of tooth portion (2 a) and outer profile of tooth portion (5 a) and inner cone ring (5 a) and the equal meshing structure of awl ring (3) mutually.

2. The multi-cone synchronizer assembly according to claim 1, wherein the inner and outer side walls of the intermediate ring (4) are friction surfaces, the outer side wall of the inner cone ring (3) and the inner side wall of the outer cone ring (5) are friction surfaces, and the friction surface of the intermediate ring (4) is abutted against the friction surface of the inner cone ring (3) and the friction surface of the outer cone surface.

3. The multi-cone synchronizer assembly of claim 2 wherein said friction surfaces are treated with molybdenum spray.

4. The multi-cone synchronizer assembly of claim 2 wherein said friction surface is bonded with carbon fiber.

5. A multi-cone synchronizer assembly according to claim 1 or 2 or 3 or 4 wherein the taper of the inner and outer conical surfaces of the intermediate ring (4) is 7-9 °.

6. The multi-cone synchronizer assembly according to claim 1 or 2 or 3 or 4 wherein both sides of the gear hub (1) are provided with engaging teeth (6), and the synchronizing assembly is arranged between the engaging teeth (6) and the gear hub (1).

7. A multi-cone synchronizer assembly according to claim 1 or 2 or 3 or 4 wherein the outer end face of the intermediate ring (4) is provided with a plurality of protrusions (4 a) and the protrusions (4 a) extend along the inner side wall of the intermediate ring (4).

8. The multi-cone synchronizer assembly according to claim 7 wherein the number of bosses (4 a) is 4 to 8 and is uniformly arranged centered on the axis of the intermediate ring (4).

9. The multi-cone synchronizer assembly according to claim 1, 2, 3 or 4, wherein the gear hub (1) is provided with a pin (7) and a spring (8), the inner side wall of the sliding gear sleeve (2) is provided with a positioning groove (2 b) and the outer end of the pin (7) can be embedded in the positioning groove (2 b).