CN216842953U

CN216842953U - Gear box of seat horizontal shifter

Info

Publication number: CN216842953U
Application number: CN202122186058.8U
Authority: CN
Inventors: 郑小元
Original assignee: Shanghai Halong Automobile Standard Part Co ltd
Current assignee: Shanghai Halon Technology Co.,Ltd.
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-06-28
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a gear box of a horizontal shifter of a seat, which comprises a shell component, a worm, a helical gear, two plane bearings and two plastic bushings; the worm is arranged on the helical gear and is in driving connection with the helical gear; the two plane bearings are arranged on two sides of the helical gear; the two bushings are arranged at the outer ends of two sides of the two plane bearings; the worm, the helical gear, the two plane bearings and the two plastic bushings are mutually matched and connected and then integrally arranged inside the shell assembly to form a gear box structure, so that the stability of the horizontal shifter can be greatly improved, and abnormal sound is reduced.

Description

Gear box of seat horizontal shifter

Technical Field

The utility model relates to an automobile manufacturing technical field, concretely relates to seat horizontal displacement ware gear box.

Background

In the modern life, automobiles become the mark of modern life, and with the rapid development of the automobile industry, the automobiles enter thousands of households and become an industrial product which is frequently contacted by common people in daily life. As a part of a vehicle, a seat is a member that is most closely contacted with a person, and the evaluation of the ride comfort and driving comfort of the vehicle is often felt through the seat.

The seat in the automobile is mainly the seat of the driver, and is the most important. From the service object, the size, height and even weight of the driver may influence the different requirements of the driver on the seat. However, in the existing seat adjuster, two sides of the helical gear in the middle of the shifter are provided with common bearings, the bearings are large in size, high in noise and low in stability in the operation process, and the use feeling of a user can be influenced after long-term use.

Therefore, how to improve the stability of the automobile seat shifter is a problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

The technical problem that stability is not high exists to current seat shifter, the utility model aims to provide a horizontal shifter gear box for seat, its stability through setting up planar bearing with the both ends of helical gear can improve horizontal shifter greatly, fine overcoming the problem that prior art exists.

In order to achieve the purpose, the utility model provides a seat horizontal shifter gear box, which comprises a shell component, a worm, a helical gear, two plane bearings and two plastic bushings; the worm is arranged on the helical gear and is in driving connection with the helical gear; the two plane bearings are arranged on two sides of the helical gear; the two plastic bushings are arranged at the outer ends of the two plane bearings; the worm, the helical gear, the two plane bearings and the two plastic bushings are mutually matched and connected and then are integrally arranged in the shell assembly to form a gear box structure.

Further, the housing assembly includes a first housing and a second housing; the first shell and the second shell are connected to form a built-in cavity.

Furthermore, the worm consists of a connecting end, a middle end and a driving end; the connecting end, the middle end and the driving end are of an integrated structure; the connecting end and the driving end are respectively arranged on the shell assembly; the driving end is externally connected with a driving source and drives the worm to rotate; the outer surface of the middle end of the worm is provided with a plurality of circles of thread sheets.

Further, the helical gear is composed of a first part, a second part and a third part; the first part, the second part and the third part are of an integrated structure; the first and third portions are respectively disposed on the housing assembly; the outer surface of the second part of the bevel gear is provided with a plurality of turbine blade structures, the turbine blade structures are matched and connected with the threaded sheets on the worm, and the bevel gear can be driven to rotate by matching the threaded sheets on the worm with the turbine blades on the bevel gear.

Further, the two plane bearings are respectively disposed on the first portion and the third portion of the helical gear.

Furthermore, the plastic bushings are respectively arranged outside two ends of the plane bearing and sleeved at two ends of the bevel gear.

The elongated horizontal displacer gear box provided by the scheme has the advantages that the elongated pipe is arranged at one end of the helical gear and connected with the lead screw, and the stability of the horizontal displacer can be greatly improved.

Drawings

The invention is further described with reference to the following drawings and detailed description.

FIG. 1 is a schematic view of the overall structure of the gear box of the horizontal seat shifter;

FIG. 2 is a structural top view of the gear box of the horizontal seat shifter;

fig. 3 is an exploded view of the structure of the gear box of the horizontal shifter of the seat.

The following are part numbers in the drawings:

310. first casing 320, second casing 330, plastic bushing 340, bolt 350, worm 360, helical gear 370, plane bearing 380 and rubber sleeve

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Aiming at the technical problem that the existing automobile seat horizontal displacer is not high in stability, the gear box of the seat horizontal displacer is improved by the scheme, and the stability of the horizontal displacer can be greatly improved by arranging the plane bearings and the plastic bushings at the two ends of the helical gear.

Referring to fig. 1-2, the gear box of the seat horizontal shifter provided by the scheme is composed of a shell assembly and a gear assembly; the gear assembly is closely embedded in the built-in cavity of the shell assembly and mutually matched to form a horizontal shifter which operates on the existing screw rod.

The housing assembly is divided into a first housing 310 and a second housing 320. The first shell 310 and the second shell 320 have the same shape and structure, the surfaces of the first shell 310 and the second shell 320 are respectively provided with a plurality of threaded holes, and the first shell 310 and the second shell 320 are connected and matched in a threaded manner through bolts 340 to form a built-in cavity for placing a gear assembly.

Meanwhile, when the protective device is applied, the two sides of the shell can be respectively provided with the rubber sleeves 380, and the shell can be protected on the one hand through the rubber sleeves 380, so that the protection of the shell is reduced; on the other hand, the rubber sleeve 380 has the characteristics of shock absorption and noise reduction, and the stability of the displacer can be further improved.

The size of the built-in cavity formed by the first housing 310 and the second housing 320 can be determined according to the size of the gear assembly; the shape structure and manufacturing process of the housing assembly are well known to those skilled in the art and will not be described herein.

Referring to fig. 3, the gear assembly includes a worm 350, a helical gear 360, a flat bearing 370 and a worm gear bushing 330; the gear assembly is matched with each other to form a gear assembly, and is placed in a built-in cavity of the shell assembly to drive the existing screw rod to rotate.

Specifically, the worm 350 is located above the helical gear 360 and is used for being connected to a driving source to drive the worm 350 to rotate.

The worm 350 is composed of a connecting end, a middle end and a driving end; the connecting end, the middle end and the driving end are integrated. The outer surface of the middle end is provided with a plurality of circles of thread pieces, and the length of the thread pieces accounts for 2/3 of the whole worm. The connecting end and the driving end respectively pass through the connecting holes of the first housing 310 and the second housing 320, and the worm 350 is placed in the housing by the clamping force of the first housing 310 and the second housing 320. The driving end is used for connecting a driving source, and the worm 350 can rotate in the shell through the driving source.

And the bevel gear 360 is positioned below the worm 350 and is used for driving the whole existing screw rod to rotate. Referring to fig. 3, it is mainly composed of a first portion at one end, a second portion at the middle portion and a third portion at the other end. The first portion, the second portion and the third portion are integral.

The first and third portions pass through the connection holes of the first and

second cases

310 and 320, respectively, and the worm 350 is placed in the cases by the clamping force of the first and

second cases

310 and 320.

A flat bearing 370 and a plastic bushing 330 are provided on the first and third portions of the helical gear 360, respectively.

The plane bearing 370 is composed of a bearing seat, a shaft ring and a rolling body; wherein, the inside of the bearing seat is provided with a raceway, and the rolling element is arranged between the bearing seat and the shaft ring and operates in the raceway inside the bearing seat. The preferred adoption plane bearing 370 of this scheme, it has characteristics small and that job stabilization nature is strong, can further optimize the displacer that provides in this scheme.

The specific construction and operation of the flat bearing 370 is well known to those skilled in the art and will not be described in detail herein.

The plastic bushings 330 are additionally arranged at the two ends of the first part and the third part of the bevel gear 360, and inner holes of the plastic bushings 330 are connected with the outer rings at the two ends of the existing bevel gear 360.

The outer surface of the second part of the bevel gear 360 is surrounded by a plurality of parallel turbine blades, and the length of the turbine blades occupies 2/3 of the whole bevel gear.

When the gear box is used, the thread pieces of the worm 350 and the turbine blades of the helical gear 360 are attached to each other and matched with each other to form a transmission device, and the helical gear 360 and the plane bearings 370 on two sides of the helical gear 360 are driven to rotate by the threaded pieces and the turbine blades when the worm 350 rotates, so that the helical gear 360 can rotate to move the gear box through the lead screw.

The working process of the scheme in use is illustrated below; it should be noted that the following description is only a specific application example of the present solution and is not intended to limit the present solution.

When the worm gear is applied specifically, the driving end of the worm 350 in the gear box 300 is connected to the driving source, and the driving source is turned on, so that the driving source can drive the worm 350 to rotate in the housing.

The helical gear 360 matched with the worm 350, through the mutual matching of the thread sheet on the worm 350 and the turbine blade on the helical gear 360, the worm 350 drives the helical gear 360 and the plane bearing 370 to rotate. When the bevel gear 360 rotates, the gear box is moved through the screw rod connected with the bevel gear in a matching manner, and the gear box is fixed on the inner rail of the seat slide rail, so that the seat can be adjusted forwards and backwards.

The seat horizontal shifter gear box that constitutes by above-mentioned scheme, it can improve the stability of horizontal shifter greatly through setting up planar bearing with helical gear both ends.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A gear box of a seat horizontal shifter is characterized by comprising a shell assembly, a worm, a helical gear, two plane bearings and two plastic bushings; the worm is arranged on the helical gear and is in driving connection with the helical gear; the two plane bearings are arranged on two sides of the helical gear; the two plastic bushings are arranged at the outer ends of the two plane bearings; the worm, the helical gear, the two plane bearings and the two plastic bushings are mutually matched and connected and then are integrally arranged in the shell assembly to form a gear box structure.

2. The seat horizontal shifter gearbox of claim 1, wherein the housing assembly includes a first housing and a second housing; the first shell and the second shell are connected to form a built-in cavity.

3. The seat horizontal shifter gearbox of claim 1, wherein the worm is comprised of a connecting end, an intermediate end and a driving end; the connecting end, the middle end and the driving end are of an integrated structure; the connecting end and the driving end are respectively arranged on the shell assembly; the driving end is externally connected with a driving source and drives the worm to rotate; the outer surface part of the middle end of the worm is provided with a plurality of circles of thread sheets.

4. The seat horizontal displacer gearbox of claim 1, wherein the helical gear is comprised of a first portion, a second portion and a third portion; the first part, the second part and the third part are of an integrated structure; the first and third portions are respectively disposed on the housing assembly; the outer surface of the second part of the bevel gear is provided with a plurality of turbine blade structures, the turbine blade structures are matched and connected with the threaded sheets on the worm, and the bevel gear can be driven to rotate by matching the threaded sheets on the worm with the turbine blades on the bevel gear.

5. The seat horizontal displacer gearbox of claim 1, wherein the two flat bearings are disposed on the first and third portions of the helical gear, respectively.

6. The gear box of claim 1, wherein the plastic bushings are respectively disposed outside the two ends of the plane bearing and are sleeved on the two ends of the bevel gear.