CN218929204U

CN218929204U - Speed changing seat

Info

Publication number: CN218929204U
Application number: CN202223211770.XU
Authority: CN
Inventors: 张庆坤; 王智凡; 韩承祥; 王立祥; 张新明
Original assignee: Shandong Wuzheng Group Co Ltd
Current assignee: Shandong Wuzheng Group Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-28
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a speed changing seat, which comprises a bearing seat arranged on a fixed seat, wherein a speed changing handle is arranged on the bearing seat through a speed changing bearing, one end, close to the bearing seat, of the speed changing handle is provided with a guide sliding block in a sliding mode through a sliding structure, the head part of the guide sliding block can slide on the bearing seat under the drive of the speed changing handle, an elastic device for driving the head part of the guide sliding block to prop against the bearing seat is arranged between the tail part of the guide sliding block and the speed changing handle, a middle position positioning groove in sliding fit with the head part of the guide sliding block is arranged on the bearing seat, and limiting grooves are respectively arranged on two sides of the middle position positioning groove on the bearing seat. The utility model ensures that the gear shifting handle has no obvious shake after gear shifting, reduces the front-back shake phenomenon of the gear shifting handle in the driving process, simultaneously ensures that the gear selecting and gear shifting hand feeling is clearer, reduces idle stroke and greatly improves the driving operation feeling of a user.

Description

Speed changing seat

Technical Field

The present disclosure relates to transmission, and particularly to a transmission.

Background

The existing three-wheeled automobile stay wire type speed changing seat is generally formed by adopting a rotating ball bearing assembly, a ball stud, a transposition rocker arm welding, a gear shifting rocker arm welding and a speed changing handle welding which are arranged on a fixed seat, and the speed changing seat generally has no middle position positioning structure and a gear shifting limiting structure after gear shifting in place, so that if a gap exists at the joint of a speed changing system, the gear shifting idle stroke of the speed changing seat is larger, and the front-back shaking phenomenon exists on the speed changing handle and a handball in the driving process.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the speed changing seat capable of reducing the front-back shaking phenomenon of the speed changing handle in the driving process.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a speed changing seat, includes the bearing frame of installing on the fixing base, install the speed changing handle through speed changing bearing on the bearing frame, speed changing handle is close to bearing frame one end and is provided with the direction slider through sliding structure slip, the direction slider head can drive down at the speed changing handle and slide on the bearing frame, be provided with the resilient means who drives the direction slider head top and lean on the bearing frame between direction slider afterbody and the speed changing handle, be provided with on the bearing frame with direction slider head sliding fit's meso position positioning groove, be provided with spacing recess on the bearing frame respectively in the both sides of meso position positioning groove.

As the preferable technical scheme, sliding structure is including fixed cover dress at the handle cover of gear shifting handle tip, the guide slide slides and sets up in the handle cover inner chamber and the guide slide head stretches out the handle cover inner chamber, the guide slide afterbody is provided with the installation cavity, resilient means sets up between installation cavity and gear shifting handle tip.

As the preferable technical scheme, the groove width and the groove depth of the two limit grooves are larger than those of the middle position positioning groove.

As an optimal technical scheme, the middle position positioning groove and the two limit grooves are mutually parallel strip grooves.

As the preferable technical scheme, the surface of the tip end of the head part of the guide sliding block is spherical, and the surface of a part of the bearing seat, which is positioned between the middle position positioning groove and the two limit grooves, is in a convex cambered surface shape.

Due to the adoption of the technical scheme, the speed changing seat comprises the bearing seat arranged on the fixed seat, the speed changing handle is arranged on the bearing seat through the speed changing bearing, the speed changing handle is provided with the guide sliding block near one end of the bearing seat through the sliding structure in a sliding manner, the head part of the guide sliding block can slide on the bearing seat under the driving of the speed changing handle, the elastic device for driving the head part of the guide sliding block to prop against the bearing seat is arranged between the tail part of the guide sliding block and the speed changing handle, the bearing seat is provided with the middle position positioning groove in sliding fit with the head part of the guide sliding block, and the two sides of the middle position positioning groove on the bearing seat are respectively provided with the limiting grooves. When shifting gears, the elastic device drives the guide sliding block to be matched with the middle position positioning groove and the limit groove on the bearing seat to restrain the speed changing handle, so that the speed changing handle does not shake obviously after shifting gears, and the front-back shaking phenomenon of the speed changing handle in the driving process is reduced; meanwhile, the gear shifting handle has obvious return feeling when the gear shifting handle is shifted to the middle position, and good suction feeling and clear feeling when the gear shifting handle is shifted to the middle position.

Drawings

The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model. Wherein:

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic view of a sliding structure of the present utility model.

In the figure: 1-a speed change handle; 2-a handle sleeve; 3-bearing seats; 4-a shift rocker arm; 5-knuckle bearing; 6-transposition rocker arm; 7-fixing seats; 8-guiding sliding blocks; 9-elastic means; 10-connecting plates; 11-a median positioning groove; 12-limiting grooves; 13-mounting cavity.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the utility model are shown. In the drawings, the same reference numerals designate the same or similar components or elements.

As shown in fig. 1, a gear shifting seat comprises a bearing seat 3 installed on a fixed seat 7, wherein a gear shifting handle 1 is installed on the bearing seat 3 through a gear shifting bearing, most of gear shifting handles 1 adopted by the existing gear shifting seat are arranged on the upper side of the bearing seat 3, the gear shifting bearing can adopt a joint bearing 5, the joint bearing 5 is fixedly connected with the lower end of the gear shifting handle 1 through a connecting plate 10, the connecting plate 10 drives a transposition rocker arm 6 through a ball stud, the gear shifting handle 1 is connected with a gear shifting rocker arm 4, and the structure of the gear shifting seat is the prior known technology and is not described in detail herein; the gear shifting handle 1 is close to bearing frame 3 one end and is provided with direction slider 8 through sliding structure slip, direction slider 8 head can drive down in gear shifting handle 1 and slide on bearing frame 3, be provided with between direction slider 8 afterbody and the gear shifting handle 1 and order about the elastic device 9 of direction slider 8 head top on bearing frame 3, be provided with on the bearing frame 3 with direction slider 8 head sliding fit's meso position positioning groove 11, be provided with spacing recess 12 on the bearing frame 3 respectively in the both sides of meso position positioning groove 11. When gear selection and shifting are performed, the elastic device 9 drives the guide sliding block 8 to be matched with the middle position positioning groove 11 and the limiting groove 12 on the bearing seat 3 to restrain the speed changing handle 1, so that the speed changing handle 1 does not shake obviously after gear shifting, and the front-back shaking phenomenon of the speed changing handle 1 in the driving process is reduced.

As shown in fig. 2, the sliding structure comprises a handle sleeve 2 fixedly sleeved at the end part of the gear shifting handle 1, the guide sliding block 8 is slidably arranged in the inner cavity of the handle sleeve 2, the head part of the guide sliding block 8 extends out of the inner cavity of the handle sleeve 2, the tail part of the guide sliding block 8 is provided with an installation cavity 13, and the elastic device 9 is arranged between the installation cavity 13 and the end part of the gear shifting handle 1. The elastic device 9 can adopt a pressure spring, two ends of the pressure spring respectively lean against the inside of the mounting cavity 13 and the end part of the speed changing handle 1, and are used for driving the guide sliding block 8 to tightly lean against the bearing seat 3, and the handle sleeve 2 and the knuckle bearing 5 can be fixedly connected, so that the guide sliding block 8 and the pressure spring can be firstly placed into the mounting cavity 13 when being mounted, and the speed changing handle 1 and the handle sleeve 2 are fixedly sleeved, so that the sliding structure and the speed changing handle 1 are more convenient to mount. Of course, the sliding structure may also adopt a structure that a sliding cavity is directly arranged at the end of the gear lever 1, and the elastic device 9 and the guiding sliding block 8 are slidably arranged in the sliding cavity.

As shown in fig. 1 and 2, the groove width and the groove depth of the two limiting grooves 12 are larger than those of the middle positioning groove 11, that is, the groove width of the two limiting grooves 12 is larger than that of the middle positioning groove 11, and the groove depth of the two limiting grooves 12 is larger than that of the middle positioning groove 11, so that good suction feeling and clear feeling can be obtained when shifting in place, and the user feeling can be improved. The middle position positioning groove 11 and the two limit grooves 12 are mutually parallel strip-shaped grooves, and the two limit grooves 12 are preferably symmetrically arranged on two sides of the middle position positioning groove 11, so that the transposition operation is ensured to be smoothly carried out.

As shown in fig. 1 and fig. 2, the surface of the tip of the head of the guide slide block 8 is spherical, the positioning and matching accuracy of the tip of the head of the guide slide block 8 and the middle position positioning groove 11 is improved, the surface of a part of the bearing seat 3 between the middle position positioning groove 11 and the two limit grooves 12 is in a convex cambered surface shape, the sliding and matching smoothness of the end of the guide slide block 8 and the middle position positioning groove 11 and the two limit grooves 12 is ensured, the gear shifting and transposition operation is smoother, the gear shifting has good suction feeling and clear feeling, and the gear shifting handle 1 has no obvious play phenomenon after the gear shifting.

When the gear shifting device is used, a driver controls the gear shifting handle 1 to select gears, when different gears are selected, the tip of the head of the guide slide block 8 slides to the limit grooves 12 on the two sides through the middle position positioning groove 11 positioned on the bearing seat 3, and in the gear shifting process, the pressure spring always pushes the guide slide block 8, so that the position of the tip of the head of the guide slide block 8 is in limit matching with the middle position positioning groove 11 or the two limit grooves 12 in the bearing seat 3, obvious return feeling is realized when the gear is shifted to the middle position, and good suction feeling and clear feeling are realized when the gear is shifted to the position.

The bearing seat 3 and the guide sliding block 8 can be made of materials with excellent wear resistance and self-lubricating property, so that the durability is improved; the structural design of the middle position positioning groove 11 and the two limit grooves 12 is arranged on the bearing seat 3, so that the gear selecting and shifting hand feeling is clearer, the idle stroke is reduced, and the driving and operating feeling of a user is greatly improved.

In the description of the present utility model, it should be understood that each term indicating an orientation or a positional relationship is based on the orientation or the positional relationship shown in the drawings, and is merely for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a speed change seat, includes the bearing frame of installing on the fixing base, install the gear lever through speed change bearing on the bearing frame, its characterized in that: the gear shifting handle is close to one end of the bearing seat and is provided with a guide sliding block in a sliding mode through a sliding structure, the head of the guide sliding block can slide on the bearing seat under the driving of the gear shifting handle, an elastic device for driving the head of the guide sliding block to lean against the bearing seat is arranged between the tail of the guide sliding block and the gear shifting handle, the bearing seat is provided with a middle position positioning groove in sliding fit with the head of the guide sliding block, and two sides of the middle position positioning groove on the bearing seat are respectively provided with a limiting groove.

2. A transmission according to claim 1, wherein: the sliding structure comprises a handle sleeve fixedly sleeved at the end part of the speed changing handle, the guide sliding block is arranged in the inner cavity of the handle sleeve in a sliding mode, the head part of the guide sliding block extends out of the inner cavity of the handle sleeve, the tail part of the guide sliding block is provided with an installation cavity, and the elastic device is arranged between the installation cavity and the end part of the speed changing handle.

3. A transmission according to claim 1, wherein: the groove width and the groove depth of the two limit grooves are larger than those of the middle position positioning groove.

4. A transmission according to claim 1, wherein: the middle position positioning groove and the two limit grooves are strip grooves which are parallel to each other.

5. A gear box according to any one of claims 1 to 4, wherein: the surface of the tip end of the head of the guide sliding block is spherical, and the surface of a part of the bearing seat, which is positioned between the middle position positioning groove and the two limit grooves, is in a convex cambered surface shape.