CN215059403U

CN215059403U - Gear thimble assembly

Info

Publication number: CN215059403U
Application number: CN202121524897.XU
Authority: CN
Inventors: 宣虹; 龚钢
Original assignee: Chongqing Downwind Auto Parts Co ltd
Current assignee: Chongqing Downwind Auto Parts Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-07
Anticipated expiration: 2031-07-06

Abstract

The utility model provides a keep off position thimble assembly belongs to car operating mechanism technical field that shifts. It has solved the problem that current fender position thimble assembly can not eliminate installation clearance and wearing and tearing clearance. This keep off position thimble assembly, including keeping off the position thimble, it is equipped with first adjusting collar to keep off the position cover on the thimble, spring and second adjusting collar, the one end of spring is supported and is leaned on first adjusting collar, the other end of spring supports and leans on second adjusting collar, keep off the position coaxial third that link firmly the shell fragment that comprises a plurality of axial extensions on the thimble and expand the cover, the internal diameter that the third expands the cover is greater than the external diameter that keeps off the position thimble, the one end that the spring was kept away from to first adjusting collar stretches into the third and expands between the cover and the fender position thimble, be equipped with the cooperation structure that is used for making the external diameter of the third expanded cover increase under the effect of spring between first adjusting collar and the third expand the cover. The utility model discloses can eliminate installation clearance and wearing and tearing clearance, effectively avoid rocking of keeping off the position thimble, improve and shifted and feel and quality.

Description

Gear thimble assembly

Technical Field

The utility model belongs to the technical field of car operating mechanism that shifts, a keep off position thimble assembly, especially a keep off position thimble assembly that can eliminate installation clearance and wearing and tearing clearance is related to.

Background

The gear thimble is a key part used in an automobile gear shifting device, in particular to an automatic gear shifting device, and has the functions of ensuring that a gear shifting rod is automatically positioned at each gear without shaking and loosening, and providing force feedback when the gear shifting rod moves between the gears.

The structure of the existing retaining thimble is shown in fig. 1, and comprises a thimble body, wherein a limiting ring for limiting a spring is arranged on the thimble body. During installation, the gear thimble is installed in a thimble sleeve of the gear shifter, and a spring sleeved on the thimble body is arranged between the limiting ring and the bottom of the thimble sleeve.

The gear thimble has the following problems: 1. the gap between the gear thimble and the thimble sleeve always exists, and the abrasion is larger and larger, so that the gear shifting rod shakes, and the gear shifting hand feeling is poor; 2. because the spring needs the space, leads to the effective length of thimble shorter, when causing the clearance increase because wearing and tearing, the rocking increase of gear level is more obvious.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a can eliminate fender position thimble assembly in installation clearance and wearing and tearing clearance.

The purpose of the utility model can be realized by the following technical proposal:

keep off position thimble assembly, including keeping off the position thimble, the cover is equipped with first adjusting collar, spring and second adjusting collar on keeping off the position thimble, the one end of spring is supported and is sheathe in at first adjusting collar, the other end of spring supports and sheathes in at the second adjusting collar, keep off the position coaxial third that link firmly the shell fragment that comprises a plurality of axial extensions on the thimble and overlap, the internal diameter that the third expands the cover is greater than the external diameter that keeps off the position thimble, the one end that the spring was kept away from to first adjusting collar stretches into the third and expands between the cover and the fender position thimble, be equipped with the cooperation structure that is used for making the external diameter increase of the third expand cover under the effect of spring between first adjusting collar and the third expand the cover.

One end, far away from the first adjusting sleeve, of the third expansion sleeve is fixedly connected with the gear thimble, and the inner diameter of the third expansion sleeve is larger than the outer diameter of the gear thimble, so that a gap for the first adjusting sleeve to stretch into is formed between the third expansion sleeve and the gear thimble, a yielding groove is formed between the elastic sheets which are arranged adjacently, and the first adjusting sleeve and the second adjusting sleeve are respectively in sliding fit with the gear thimble.

During the use, will keep off a position thimble assembly and install in the thimble cover of selector, the inner wall of thimble cover is equipped with spacing step, and the second adjusting collar supports and leans on spacing step under the effect of spring, and makes the third cover that expands contact with the pore wall of thimble cover under the effect of spring and cooperation structure, plays the effect of eliminating installation clearance. When the elastic sheet is worn, the outer diameter of the third expansion sleeve is increased under the action of the spring and the matching structure, so that the third expansion sleeve is always in contact with the hole wall of the thimble sleeve, and the function of eliminating a wear gap is achieved.

In the above-mentioned keep off position thimble assembly, the cooperation structure is including locating the outer conical surface on the first adjusting collar, the external diameter of outer conical surface is crescent from the one end that first adjusting collar is close to the third expansion sleeve to the one end that first adjusting collar is close to the spring.

The outer conical surface and the first adjusting sleeve are coaxially arranged, the minimum outer diameter of the outer conical surface is smaller than the inner diameter of the third expansion sleeve, and the maximum outer diameter of the outer conical surface is larger than the outer diameter of the third expansion sleeve. The smaller the axial distance between the first adjusting sleeve and the third expansion sleeve is, the larger the outer diameter of the third expansion sleeve is.

In the above-mentioned keep off position thimble assembly, the cooperation structure is including locating the inboard inclined plane of shell fragment, the distance that the inclined plane reaches to keeping off the position thimble reduces gradually from the one end that the third expansion sleeve is close to first adjusting collar to the one end that the third expansion sleeve kept away from first adjusting collar.

Inclined planes on the elastic sheets form an inner ring surface, and the inner diameter of the inner ring surface is gradually reduced from one end of the third expansion sleeve close to the first adjusting sleeve to one end of the third expansion sleeve far away from the first adjusting sleeve.

When the matching structure is only the inner annular surface, the maximum inner diameter of the inner annular surface is larger than the outer diameter of the first adjusting sleeve, and the minimum inner diameter of the inner annular surface is smaller than the inner diameter of the first adjusting sleeve. The smaller the axial distance between the first adjusting sleeve and the third expansion sleeve is, the larger the outer diameter of the third expansion sleeve is. The mating structure may also include both an outer conical surface and an inner annular surface.

In the above-mentioned keep off position thimble assembly, be equipped with axially extended first opening on the first adjusting collar. The first opening penetrates through the first adjusting sleeve, and the first adjusting sleeve can be stably matched with the gear thimble under the action of the third expansion sleeve, so that the stability is improved.

In the above-mentioned keep off position thimble assembly, be equipped with axially extended second opening on the second adjusting collar. When the outer wall of the second adjusting sleeve is abraded, the outer diameter of the second adjusting sleeve can be enlarged due to the second opening, so that the second adjusting sleeve is always in contact with the hole wall of the thimble sleeve.

In the shift thimble assembly, the second adjusting sleeve is provided with an inner conical surface, the inner diameter of the inner conical surface is gradually reduced from one end of the second adjusting sleeve, which is close to the spring, to one end of the second adjusting sleeve, which is far away from the spring, and the other end of the spring abuts against the inner conical surface.

Due to the arrangement of the inner conical surface, the coaxiality of the spring and the second adjusting sleeve can be ensured.

In the above gear thimble assembly, the end of the second adjusting sleeve far away from the spring is provided with a third conical surface, and the outer diameter of the third conical surface is gradually increased from the end of the second adjusting sleeve far away from the spring to the end of the second adjusting sleeve close to the spring. The third conical surface is matched with the limiting step in the thimble sleeve, so that the second adjusting sleeve can tightly hold the thimble under the action of the spring, and the purpose of eliminating the gap is achieved. In order to realize better matching, the limiting step in the thimble sleeve is designed into a conical surface.

In the above-mentioned fender thimble assembly, a plurality of shell fragment along keeping off the central axis annular array distribution of thimble. Because a plurality of shell fragments evenly distributed, the third that constitutes by a plurality of shell fragments expands when receiving the extrusion of first adjusting collar just can the uniform variation, guarantees that the outer wall of third expand the cover can contact with the pore wall of thimble cover simultaneously, improves stability.

Compared with the prior art, this keep off position thimble assembly has following advantage:

when the gear shifter shifts gears, when the gear thimble is pressed downwards, the first adjusting sleeve is subjected to the upward elastic force of the spring, the third expansion sleeve expands outwards under the combined action of the first adjusting sleeve and the matching structure, the gap between the gear shifting thimble and the thimble sleeve hole wall can be eliminated, even after the gear shifter is worn in long-term use, the gap can be automatically compensated and eliminated through the first adjusting sleeve and the matching structure, the shaking is effectively avoided, and the gear shifting hand feeling and the quality are improved; in a similar way, the second adjusting sleeve can tightly hold the gear thimble under the action of the spring through the limiting step and the third conical surface, and the gap is eliminated.

Drawings

Fig. 1 is a schematic installation diagram of a shift thimble assembly provided in the background art.

Fig. 2 is a schematic structural diagram of a shift position thimble assembly provided in the first embodiment.

Fig. 3 is an exploded schematic view of a shift thimble assembly according to an embodiment.

FIG. 4 is a cross-sectional view of a shift position thimble assembly provided in the first embodiment.

Fig. 5 is an installation schematic diagram of a shift thimble assembly provided in the first embodiment.

Fig. 6 is a sectional view of a shift position thimble assembly provided in the fourth embodiment.

In the figure, 1, a gear thimble; 2. a first adjusting sleeve; 3. a spring; 4. a second adjusting sleeve; 5. a spring plate; 6. an outer conical surface; 7. a bevel; 8. a first opening; 9. a second opening; 10. an inner conical surface; 11. a second conical surface; 12. and a third conical surface.

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.

Example one

As shown in fig. 2 and 3, the gear thimble assembly includes a gear thimble 1, a first adjusting sleeve 2, a spring 3 and a second adjusting sleeve 4 are sleeved on the gear thimble 1, the first adjusting sleeve 2 and the second adjusting sleeve 4 are respectively in sliding fit with the gear thimble 1, one end of the spring 3 abuts against the first adjusting sleeve 2, and the other end of the spring 3 abuts against the second adjusting sleeve 4.

As shown in fig. 4, a third expansion sleeve formed by a plurality of axially extending elastic sheets 5 is coaxially and fixedly connected to the gear thimble 1, the inner diameter of the third expansion sleeve is larger than the outer diameter of the gear thimble 1, and the elastic sheets 5 are distributed in an annular array along the central axis of the gear thimble 1. Because the shell fragment 5 evenly sets up, the third that constitutes by a plurality of shell fragments 5 expands when receiving the extrusion of first adjusting sleeve 2 overlaps overall dimension and just can the uniform change, guarantees that the outer wall of the third cover that expands can contact with the pore wall of thimble cover simultaneously, improves stability. As shown in fig. 4, one end of the first adjusting sleeve 2, which is far away from the spring 3, extends into a space between the third expanding sleeve and the shift thimble 1, and a matching structure for increasing the outer diameter of the third expanding sleeve under the action of the spring 3 is arranged between the first adjusting sleeve 2 and the third expanding sleeve.

Specifically, as shown in fig. 4, one end of the third expansion sleeve, which is far away from the first adjustment sleeve 2, is fixedly connected with the shift position thimble 1, and since the inner diameter of the third expansion sleeve is larger than the outer diameter of the shift position thimble 1, a gap into which the first adjustment sleeve 2 extends is formed between the third expansion sleeve and the shift position thimble 1, an abdicating groove is formed between two adjacent spring plates 5,

when the gear shifting thimble assembly is used, as shown in fig. 5, the gear shifting thimble assembly is installed in a thimble sleeve of a gear shifter, a limiting step is arranged on the inner wall of the thimble sleeve, the second adjusting sleeve 4 abuts against the limiting step under the action of the spring 3, and the third expansion sleeve is in contact with the hole wall of the thimble sleeve under the action of the spring 3 and the matching structure, so that the effect of eliminating the installation gap is achieved. When the elastic sheet 5 is worn, the outer diameter of the third expansion sleeve is increased under the action of the spring 3 and the matching structure, so that the third expansion sleeve is always in contact with the hole wall of the thimble sleeve, and the function of eliminating a wear gap is achieved.

One end of the second adjusting sleeve 4, which is far away from the spring 3, is provided with a third conical surface 12, and the outer diameter of the third conical surface 12 is gradually increased from the end of the second adjusting sleeve 4, which is far away from the spring 3, to the end of the second adjusting sleeve 4, which is close to the spring 3. As shown in fig. 5, the third conical surface 12 is disposed in cooperation with a limiting step in the thimble sleeve, so that the second adjusting sleeve 4 can clasp the thimble 1 under the action of the spring 3, thereby eliminating the gap.

In order to realize better matching, the limiting step in the thimble sleeve is designed into a conical surface.

In this embodiment, as shown in fig. 3 and 4, the matching structure includes an external conical surface 6 disposed on the first adjusting sleeve 2, and an outer diameter of the external conical surface 6 gradually increases from an end of the first adjusting sleeve 2 close to the third expansion sleeve to an end of the first adjusting sleeve 2 close to the spring 3.

The outer conical surface 6 and the first adjusting sleeve 2 are coaxially arranged, the minimum outer diameter of the outer conical surface 6 is smaller than the inner diameter of the third expansion sleeve, and the maximum outer diameter of the outer conical surface 6 is larger than the outer diameter of the third expansion sleeve. The smaller the axial distance between the first adjusting sleeve 2 and the third expansion sleeve, the larger the outer diameter of the third expansion sleeve.

As shown in fig. 3, the first adjusting sleeve 2 is provided with a first opening 8 extending in the axial direction. First opening 8 link up first adjusting collar 2 and sets up, can make first adjusting collar 2 and keep off position thimble 1 stable cooperation under the effect of the third cover that expands, improves stability.

As shown in fig. 3, the second adjusting sleeve 4 is provided with a second opening 9 extending in the axial direction. When the outer wall of the second adjusting sleeve 4 is worn, the outer diameter of the second adjusting sleeve 4 can be enlarged due to the second opening 9, so that the second adjusting sleeve 4 is always in contact with the hole wall of the thimble sleeve.

As shown in fig. 3 and 4, the second adjusting sleeve 4 is provided with an inner conical surface 10, an inner diameter of the inner conical surface 10 is gradually reduced from one end of the second adjusting sleeve 4 close to the spring 3 to one end of the second adjusting sleeve 4 far from the spring 3, and the other end of the spring 3 abuts against the inner conical surface 10.

Due to the inner conical surface 10, the coaxiality of the spring 3 and the second adjusting sleeve 4 can be ensured.

Example two

The structure principle of this embodiment is the same basically as the structure principle of embodiment one, and the difference lies in, cooperation structure is including locating the inboard inclined plane 7 of shell fragment 5, and the distance of inclined plane 7 to keeping off position thimble 1 reduces gradually by the one end that the first adjusting collar 2 was close to the one end that the first adjusting collar 2 was kept away from to the third expanding collar by the third expanding collar.

Inclined planes 7 on the elastic sheets 5 form an inner ring surface, and the inner diameter of the inner ring surface is gradually reduced from one end of the third expansion sleeve close to the first adjusting sleeve 2 to one end of the third expansion sleeve far away from the first adjusting sleeve 2. The maximum inner diameter of the inner ring surface is larger than the outer diameter of the first adjusting sleeve 2, and the minimum inner diameter of the inner ring surface is smaller than the inner diameter of the first adjusting sleeve 2. The smaller the axial distance between the first adjusting sleeve 2 and the third expansion sleeve, the larger the outer diameter of the third expansion sleeve.

EXAMPLE III

The structure principle of this embodiment is the same basically as the structure principle of embodiment one, and the difference lies in, as shown in fig. 4, the cooperation structure includes that the outer conical surface 6 on first adjusting collar 2 is located and the inboard inclined plane 7 of shell fragment 5 is located, the external diameter of outer conical surface 6 is by the one end that first adjusting collar 2 is close to the third cover that expands to the one end that first adjusting collar 2 is close to spring 3 crescent, inclined plane 7 on a plurality of shell fragments 5 constitutes interior anchor ring, the internal diameter of interior anchor ring is by the one end that the third cover that expands is close to first adjusting collar 2 to the one end that the third cover that expands keeps away from first adjusting collar 2 reduces gradually.

Example four

The construction principle of this embodiment is substantially the same as that of the first embodiment, except that, as shown in fig. 3, the first adjusting sleeve 2 is provided with a first opening 8 extending in the axial direction. First opening 8 link up first adjusting collar 2 and sets up, can make first adjusting collar 2 and keep off position thimble 1 stable cooperation under the effect of the third cover that expands, improves stability.

As shown in fig. 6, a second conical surface 11 is disposed at one end of the first adjusting sleeve 2 close to the spring 3, an inner diameter of the second conical surface 11 is gradually reduced from one end of the first adjusting sleeve 2 close to the spring 3 to one end of the first adjusting sleeve 2 far away from the spring 3, and one end of the spring 3 abuts against the second conical surface 11.

When the third expands and overlaps the wearing and tearing seriously, and when first adjusting collar 2 gets into the third completely and keeps off the position after between thimble 1 unable external diameter that enlarges the third again, can make the external diameter increase of first adjusting collar 2 through the extrusion of spring 3, when the external diameter increase of first adjusting collar 2, can extrude a plurality of shell fragments 5, make the third expand and overlap and enlarge once more, improve life.

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

Claims

1. The utility model provides a keep off position thimble assembly, is including keeping off position thimble (1), its characterized in that, keep off the position and overlap on thimble (1) and be equipped with first adjusting collar (2), spring (3) and second adjusting collar (4), the one end of spring (3) is supported and is leaned on first adjusting collar (2), and the other end of spring (3) supports and leans on second adjusting collar (4), keep off position thimble (1) and go up the coaxial third that has linked firmly shell fragment (5) by a plurality of axial extensions and overlap, the internal diameter of the third cover that expands is greater than the external diameter that keeps off position thimble (1), the one end that spring (3) were kept away from in first adjusting collar (2) stretches into the third and expands between cover and keep off position thimble (1), be equipped with between the first adjusting collar (2) and the third cover and be used for making the cooperation structure that the external diameter of the third expands under the effect of spring (3) increases.

2. The gear thimble assembly according to claim 1, wherein the engagement structure comprises an external conical surface (6) provided on the first adjusting sleeve (2), and an outer diameter of the external conical surface (6) is gradually increased from an end of the first adjusting sleeve (2) close to the third expanding sleeve to an end of the first adjusting sleeve (2) close to the spring (3).

3. The gear thimble assembly according to claim 1 or 2, wherein the engagement structure comprises an inclined surface (7) disposed on an inner side of the spring plate (5), and a distance from the inclined surface (7) to the gear thimble (1) is gradually reduced from an end of the third expansion sleeve close to the first adjusting sleeve (2) to an end of the third expansion sleeve away from the first adjusting sleeve (2).

4. A gear thimble assembly according to claim 1, characterized in that said first adjusting sleeve (2) is provided with a first axially extending opening (8).

5. The gear thimble assembly according to claim 1, wherein said second adjusting sleeve (4) is provided with a second axially extending opening (9).

6. A gear thimble assembly according to claim 5, wherein the second adjusting sleeve (4) is provided with an inner conical surface (10), the inner diameter of the inner conical surface (10) is gradually reduced from the end of the second adjusting sleeve (4) close to the spring (3) to the end of the second adjusting sleeve (4) far away from the spring (3), and the other end of the spring (3) abuts against the inner conical surface (10).

7. The gear thimble assembly according to claim 1, wherein a third conical surface (12) is provided at an end of the second adjusting sleeve (4) away from the spring (3), and an outer diameter of the third conical surface (12) is gradually increased from the end of the second adjusting sleeve (4) away from the spring (3) to the end of the second adjusting sleeve (4) close to the spring.

8. The gear thimble assembly according to claim 1, wherein the plurality of spring plates (5) are distributed in an annular array along a central axis of the gear thimble (1).