CN220151755U - Multi-conical-surface lock pin type synchronizer - Google Patents

Abstract

The utility model discloses a multi-conical-surface locking pin type synchronizer which comprises a sliding tooth sleeve, a first synchronizing ring, a second synchronizing ring, a first gear and a second gear, wherein the first synchronizing ring and the second synchronizing ring are symmetrically arranged on the left side and the right side of the sliding tooth sleeve, the first gear is connected with the first synchronizing ring, the second gear is connected with the second synchronizing ring, the first synchronizing ring comprises an outer ring, a middle ring and an inner ring which are mutually sleeved, the outer ring is matched with the middle ring through a first friction conical surface, the middle ring is matched with the inner ring through a second friction conical surface, the first synchronizing ring is composed of the outer ring, the middle ring and the inner ring, and the inner ring are matched through friction conical surfaces, so that the first synchronizing ring with a multi-conical-surface structure is formed, the use load of friction materials can be effectively reduced, the abrasion of the first synchronizing ring is reduced, the service life of the synchronizer is prolonged, and the multi-conical-surface locking pin type synchronizer also has the advantages of simple structure and convenience in assembly.

Description

Multi-conical-surface lock pin type synchronizer

Technical Field

The utility model relates to the technical field of structural improvement of synchronizers, in particular to a multi-conical-surface lock pin type synchronizer.

Background

Currently, lock pin synchronizers are commonly used in double countershaft transmission sub-boxes for medium and heavy duty trucks. The lock pin type synchronizer generally comprises a first gear, a first synchronizing ring, a sliding gear sleeve, a second synchronizing ring and a second gear, wherein the first synchronizing ring and the first gear are matched through friction conical surfaces, and the lock pin type synchronizer has the following problems in the actual use process:

because the working environment of the lock pin type synchronizer is bad, after the lock pin type synchronizer is used for a period of time, the friction conical surface between the first synchronous ring and the first gear is arranged at the position of the first synchronous inner hole, the diameter of the friction conical surface is small, the friction load is high, and the abrasion of the conical surface is large, so that the lock pin type synchronizer is invalid.

Disclosure of Invention

In order to solve the problems, the utility model provides a multi-conical-surface lock pin type synchronizer, which is realized by the following technical scheme.

The utility model provides a many conical surface lockpin formula synchronous ware, includes slip tooth cover, symmetry setting in first synchronizer ring and the second synchronizer ring of slip tooth cover left and right sides, the first gear of being connected with first synchronizer ring to and the second gear of being connected with the second synchronizer ring, its characterized in that: the left side rigid coupling of first gear has first ring gear, the center of second gear is equipped with the second ring gear, the center rigid coupling of the left and right sides of slip tooth cover has the outer ring gear, the outer ring gear of left and right sides meshes with first ring gear and second ring gear respectively, second synchronizer ring swing joint is in the ring channel of second gear left side, and the even rigid coupling of left side circumference of second synchronizer ring has the long round pin of linkage, first synchronizer ring includes outer loop, intermediate ring and the inner ring that mutually overlaps, the inner ring cover is established on first ring gear, the locking hole has been seted up on the slip tooth cover, the long round pin of linkage passes through the locking hole and is connected with the outer loop.

Preferably, the right circumference of the outer ring is uniformly fixedly connected with a linkage short pin, the linkage short pin passes through the locking hole, and the right end of the linkage short pin is abutted with the second synchronizing ring.

Preferably, the right side of the outer ring is also provided with a mounting groove uniformly in circumference, the bottom of the mounting groove is provided with a linkage hole, the head of the linkage long pin is inserted into the linkage hole, and a synchronous spring is arranged in the mounting groove.

Preferably, the outer ring is engaged with the intermediate ring by a first friction cone and the intermediate ring is engaged with the inner ring by a second friction cone.

Preferably, the inner ring is matched with the first inner gear ring through a third friction conical surface.

Preferably, the inner ring is in clearance fit with the first ring gear.

Preferably, the left circumference of the middle ring is uniformly fixedly connected with a plug boss, and the first gear is provided with a slot matched with the plug boss.

Preferably, the right circumference of the inner ring is uniformly provided with clamping grooves, and the inner ring of the outer ring is fixedly connected with clamping claws matched with the clamping grooves.

Preferably, an annular groove is formed in the position, corresponding to the clamping groove, of the outer ring of the inner ring, a clamping ring is arranged in the annular groove, and the clamping ring has radial elasticity.

Preferably, the snap ring has radial elasticity.

The beneficial effects of the utility model are as follows:

1. the first synchronizing ring comprises the outer ring, the middle ring, the inner ring and other parts, and the parts are manufactured independently during production, so that the production is more convenient, and the parts are combined into the first synchronizing ring during use, so that the assembly is convenient.

2. Each part of first synchronizer ring is mutually independent and makes things convenient for dismouting change, and when the part damaged, each part can independently be changed, has reduced cost of maintenance, also makes the interchangeability of part improve.

3. The inner ring is matched with the middle ring and the middle ring is matched with the inner ring through friction conical surfaces, namely, a first synchronous ring with a multi-conical-surface structure is formed, the use load of friction materials can be effectively reduced, the abrasion of the first synchronous ring is reduced, and the service life of the synchronizer is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the specific embodiments will be briefly described below, it being obvious that the drawings in the following description are only some examples of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1: the inner ring is intermittently matched with the first toothed ring in a sectional view;

fig. 2: the inner ring and the first toothed ring are matched through a third friction conical surface;

fig. 3: the utility model relates to an explosion view of a multi-conical-surface lock pin type synchronizer;

fig. 4: the outer ring is structurally and schematically shown;

fig. 5: the structure of the intermediate ring is schematically shown;

fig. 6: the inner ring is structurally schematic.

The reference numerals are as follows:

the friction device comprises a first friction conical surface, a second friction conical surface, a third friction conical surface, a 1-sliding toothed sleeve, an 11-outer toothed ring, a 12-locking hole, a 2-first inner gear ring, a 21-outer ring, a 211-linkage short pin, a 212-mounting groove, a 213-linkage hole, a 214-linkage spring, a 22-middle ring, a 221-inserting boss, a 222-claw, a 23-inner ring, a 231-clamping groove, a 232-annular groove, a 233-clamping ring, a 3-second synchronous ring, a 31-linkage long pin, a 4-first gear, a 41-first inner gear ring, a 42-inserting groove, a 5-second gear and a 51-second inner gear ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, a multi-conical-surface locking pin type synchronizer comprises a sliding tooth sleeve 1, a first synchronizing ring 2 and a second synchronizing ring 3 symmetrically arranged on the left side and the right side of the sliding tooth sleeve 1, a first gear 4 connected with the first synchronizing ring 2, and a second gear 5 connected with the second synchronizing ring 3, wherein a first inner gear ring 41 is fixedly connected to the left side of the first gear 4, a second inner gear ring 51 is arranged in the center of the second gear 5, an outer gear ring 11 is fixedly connected to the center of the left side and the right side of the sliding tooth sleeve 1, the outer gear rings 11 on the left side and the right side are respectively meshed with the first inner gear ring 41 and the second inner gear ring 51, the second synchronizing ring 3 is movably connected in an annular groove on the left side of the second gear 5, a linkage long pin 31 is uniformly fixedly connected to the left side circumference of the second synchronizing ring 3, the first synchronizing ring 2 comprises an outer ring 21, a middle ring 22 and an inner ring 23 which are mutually sleeved, the inner ring 23 is sleeved on the first inner gear ring 41, a locking hole 12 is formed in the sliding tooth sleeve 1, and the long pin 31 passes through the locking hole 12 and is connected with the linkage long pin 21.

Further, a linking short pin 211 is uniformly fixed on the right circumference of the outer ring 21, the linking short pin 211 also passes through the locking hole 12, and the right end of the linking short pin 211 abuts against the second synchronizing ring 3.

Further, the right side of the outer ring 21 is also provided with a mounting groove 212 uniformly on the circumference, a linkage hole 213 is provided at the bottom of the mounting groove 212, the head of the linkage long pin 31 is inserted into the linkage hole 213, and a synchronizing spring 214 is provided in the mounting groove 212.

Further, the outer ring 21 is engaged with the intermediate ring 22 by the first friction cone a, and the intermediate ring 22 is engaged with the inner ring 23 by the second friction cone B.

Further, the inner ring 23 is engaged with the first ring gear 41 by the third friction cone C.

Further, the inner ring 23 is clearance fitted with the first ring gear 41.

Further, the left circumference of the middle ring 22 is uniformly fixedly connected with a plug boss 221, and the first gear 4 is provided with a slot 42 matched with the plug boss 221.

Further, the right circumference of the inner ring 23 is uniformly provided with a clamping groove 231, and the inner ring of the outer ring 21 is fixedly connected with a claw 222 matched with the clamping groove 231.

Further, an annular groove 232 is formed in the outer ring of the inner ring 23 corresponding to the clamping groove 231, and a clamping ring 233 is arranged in the annular groove 233.

Further, the snap ring 233 has radial elasticity.

One embodiment of the utility model is as follows:

when the utility model is assembled and used, the inner ring 23 is sleeved on the first toothed ring, the inner ring 23 and the first toothed ring can be in clearance fit, or can be matched through the third friction conical surface C, then the clamping ring 233 is arranged in the annular groove 232, the middle ring 22 is sleeved on the inner ring 23, the connection between the inner ring 23 and the middle ring 22 is realized through the clamping ring 233, the inner ring 23 and the middle ring 22 are matched through the second friction conical surface B, the inserting boss 221 on the middle ring 22 is matched with the inserting groove 42, then the outer ring 21 is sleeved on the middle ring 22, the outer ring 21 and the middle ring 22 are matched through the first friction conical surface A, the clamping jaw 222 on the inner ring 23 is matched with the clamping jaw 222 on the outer ring 21, and the second synchronizing ring 3 is movably connected in the annular groove on the left side of the second gear 5.

Then, the sliding gear sleeve 1 is placed between the second synchronizing ring 3 and the outer ring 21, the interlocking long pin 31 and the interlocking short pin 211 pass through the corresponding locking holes 12, respectively, and the head of the interlocking long pin 31 is inserted into the interlocking hole 213.

The first synchronizing ring 2 in the utility model is composed of an outer ring 21, a middle ring 22 and an inner ring 23, the inner ring 23 is matched with the middle ring 22, the middle ring 22 and the inner ring 23 through friction conical surfaces, namely the first synchronizing ring 2 with a multi-conical-surface structure is formed, the use load of friction materials can be effectively reduced, the abrasion of the first synchronizing ring 2 is reduced, the service life of the synchronizer is prolonged, and the utility model has the advantages of simple structure and convenient assembly

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (10)

1. The utility model provides a many conical surface lockpin formula synchronous ware, includes slip tooth cover, symmetry setting in first synchronizer ring and the second synchronizer ring of slip tooth cover left and right sides, the first gear of being connected with first synchronizer ring to and the second gear of being connected with the second synchronizer ring, its characterized in that: the left side rigid coupling of first gear has first ring gear, the center of second gear is equipped with the second ring gear, the center rigid coupling of the left and right sides of slip tooth cover has the outer ring gear, the outer ring gear of left and right sides meshes with first ring gear and second ring gear respectively, second synchronizer ring swing joint is in the ring channel of second gear left side, and the even rigid coupling of left side circumference of second synchronizer ring has the long round pin of linkage, first synchronizer ring includes outer loop, intermediate ring and the inner ring that mutually overlaps, the inner ring cover is established on first ring gear, the locking hole has been seted up on the slip tooth cover, the long round pin of linkage passes through the locking hole and is connected with the outer loop.

2. The multiple cone locking pin synchronizer of claim 1 wherein: the right side circumference of outer loop evenly rigid coupling has the linkage short pin, the linkage short pin passes through the locking hole, and the right-hand member of linkage short pin and second synchronizer ring butt.

3. The multiple cone locking pin synchronizer of claim 1 wherein: the right side of outer loop is the circumference and has been seted up the mounting groove still evenly, the linkage hole has been seted up to the bottom of mounting groove, the head of the long round pin of linkage inserts in the linkage hole, is equipped with synchronizing spring in the mounting groove.

4. The multiple cone locking pin synchronizer of claim 1 wherein: the outer ring is matched with the middle ring through a first friction conical surface, and the middle ring is matched with the inner ring through a second friction conical surface.

5. The multiple cone locking pin synchronizer of claim 4 wherein: the inner ring is matched with the first inner gear ring through a third friction conical surface.

6. The multiple cone locking pin synchronizer of claim 4 wherein: the inner ring is in clearance fit with the first inner gear ring.

7. A multiple cone lock pin synchronizer according to any one of claims 4-6, wherein: the left circumference of the middle ring is uniformly fixedly connected with a plug boss, and a slot matched with the plug boss is formed in the first gear.

8. The multiple cone locking pin synchronizer of claim 7 wherein: clamping grooves are uniformly formed in the circumference of the right side of the inner ring, and clamping claws matched with the clamping grooves are fixedly connected with the inner ring of the outer ring.

9. The multiple cone locking pin synchronizer of claim 7 wherein: an annular groove is formed in the position, corresponding to the clamping groove, of the outer ring of the inner ring, and a clamping ring is arranged in the annular groove.

10. The multiple cone locking pin synchronizer of claim 9 wherein: the snap ring has radial elasticity.