CN217874064U

CN217874064U - Integral type dual module sun gear structure

Info

Publication number: CN217874064U
Application number: CN202222495259.0U
Authority: CN
Inventors: 杜军; 吕标; 赵阳
Original assignee: Suzhou Haizhibo Electronic Technology Co ltd
Current assignee: Suzhou Haizhibo Electronic Technology Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-11-22
Anticipated expiration: 2032-09-20

Abstract

The utility model relates to an electron booster technical field especially relates to an integral type dual module sun gear structure, it is including fixed sun gear inner circle and the sun gear outer lane as an organic whole, the sun gear inner circle is equipped with and has the internal screw thread centre bore, the surface of sun gear inner circle is spacing for the round platform shape structure that has the inclination and be equipped with the axial, round platform shape structure surface is equipped with a plurality of vertical recesses along the axial, the sun gear outer lane be equipped with sun gear inner circle outward appearance limit complex outer lane centre bore, sun gear outer lane surface is equipped with a plurality of teeth of a cogwheel along the axial, outer lane centre bore department is equipped with a plurality of vertical recess complex straight-teeth with the sun gear inner circle. The device provided by the utility model processing preparation is convenient, and the running noise is little, and longe-lived and can bear great transmission load.

Description

Integral type dual module sun gear structure

Technical Field

The utility model relates to an electron booster technical field especially relates to an integral type dual module sun gear structure.

Background

In the field of transmissions it is often necessary to fit a sun gear to a main shaft. However, the traditional gear and the main shaft are matched by adopting key connection, and the main shaft rotates to drive the gear to rotate together, or the gear rotates to drive the main shaft to rotate together. This method is not suitable for an electronic brake booster because the main shaft of the electronic booster needs to make a reciprocating linear motion along with the rotation of the main shaft of the gear, so that the gear rotates at a fixed position by generally adopting a form of thread matching between the main shaft and the gear, so that the main shaft makes a reciprocating linear motion relative to the gear. As is known, common gears are integrally formed, so that the load in the transmission process is difficult to bear, and when the main shaft needs to perform frequent reciprocating motion, the gears frequently bear large axial impact, so that play may occur, the noise is high, and the service life of the gears is also affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an integral type dual module sun gear structure that processing preparation is convenient, and the noise is little, and longe-lived and can bear great transmission load is provided.

The utility model discloses a realize through following technical scheme:

the utility model provides an integral type dual module sun gear structure, its is including fixed sun gear inner circle and the sun gear outer lane as an organic whole, the sun gear inner circle is equipped with has the internal screw thread centre bore, and sun gear inner circle surface is equipped with a plurality of vertical recesses along the axial, the sun gear outer lane be equipped with a plurality of teeth of a cogwheel and with sun gear inner circle surface complex outer lane centre bore, outer lane centre bore department be equipped with a plurality of vertical recess complex straight-teeth of sun gear inner circle, and be equipped with the axial between sun gear inner circle surface and the sun gear outer lane centre bore spacing.

Preferably, the outer surface of the inner ring of the central gear is of a truncated cone-shaped structure with inclination.

Further, the axial limit is a bottom axial limit or a top axial limit or both of the bottom axial limit and the top axial limit which are arranged between the outer surface of the inner ring of the central gear and the central hole of the outer ring of the central gear.

Preferably, the internal thread at the central hole of the inner ring is a multi-thread and is matched with the thread of the main shaft.

Further, the sun gear inner ring is a wear-resistant sun gear inner ring.

Furthermore, the outer ring of the central gear is a high-strength central gear outer ring.

Beneficial effects of the utility model

The utility model discloses a pair of integral type dual module sun gear structure, have following advantage:

1. the processing and the manufacturing are convenient, and the service life is long;

2. the noise is lower when the spindle is matched with the spindle;

3. can bear larger transmission load.

Drawings

FIG. 1 is a schematic view of an assembly structure according to an embodiment;

FIG. 2 is a schematic view of an embodiment of a sun gear inner race configuration;

FIG. 3 is a schematic diagram of a sun gear outer race according to an embodiment.

FIG. 4 is a schematic diagram of a second assembly configuration of the embodiment;

FIG. 5 is a schematic view of a third exemplary assembly structure;

in the figure, 1, a central gear outer ring, 2 gear teeth, 3, a central gear inner ring, 4, a main shaft, 5, a top axial limit, 6, a bottom axial limit, 7, a circular truncated cone-shaped structure, 8, internal threads, 9, an inner ring center hole, 10, a vertical groove, 11, straight teeth and 12, an outer ring center hole are arranged.

Detailed Description

The utility model provides an integral type dual module sun gear structure, its is including fixed sun gear inner circle 3 and sun gear outer lane 1 as an organic whole, the sun gear inner circle is equipped with the inner circle centre bore 9 that has internal thread 8, and sun gear inner circle surface is equipped with a plurality of vertical recesses 10 along the axial, the sun gear outer lane be equipped with a plurality of teeth of a cogwheel 2 and with sun gear inner circle surface complex outer lane centre bore 12, outer lane centre bore department be equipped with a plurality of vertical recess complex straight-teeth 11 of sun gear inner circle, and be equipped with the axial between sun gear inner circle surface and the sun gear outer lane centre bore spacing.

The utility model provides an integral type dual module sun gear structure falls into two parts with sun gear, including two subassemblies in sun gear inner circle and the sun gear outer lane, during the preparation, can be earlier with the sun gear outer lane through moulding plastics or metal processing shaping, then again through the secondary mould plastics, the double-colored mode such as moulding plastics or metal rubber coating forms integral type sun gear subassembly with the sun gear inner circle, the processing preparation is more convenient.

And an axial limit is arranged between the outer surface of the inner ring of the central gear and the central hole of the outer ring of the central gear, when the inner ring of the central gear is in threaded fit with the main shaft 4 and bears a larger axial load, because the outer ring of the central gear needs to be matched with other gears and the axial position is relatively fixed, the inner ring of the central gear cannot axially float, the operation noise can be reduced, the capability of the central gear for bearing the axial load can be improved, and the inner ring of the central gear and the outer ring of the central gear cannot be separated in the operation process.

And the outer surface of the inner ring of the central gear is provided with a plurality of vertical grooves, and the central hole of the outer ring is provided with a plurality of straight teeth matched with the plurality of vertical grooves of the inner ring of the central gear, so that the two components are conveniently formed into a whole by secondary processing, and the two components can be prevented from rotating relatively, thereby transmitting the rotation of the outer ring of the central gear to the inner ring of the central gear and enabling the two components to rotate synchronously.

Optimally, the outer surface of the inner ring of the central gear is of a truncated cone-shaped structure 7 with an inclination, and because the outer surface of the inner ring of the central gear is of a truncated cone-shaped structure with an inclination, and the outer ring of the central gear is matched with the outer surface of the inner ring of the central gear, a drawing inclination is formed between the two parts, so that the secondary injection molding is facilitated, and the axial bearing capacity can be increased.

Further, the axial limit is a bottom axial limit 6 or a top axial limit 5 arranged between the outer surface of the inner ring of the central gear and the central hole of the outer ring of the central gear, or the bottom axial limit and the top axial limit are arranged simultaneously. Specifically, as shown in fig. 1, 4 and 5, when the outer surface of the inner ring of the central gear is of a vertical structure, the bottom axial limiting and the top axial limiting can be simultaneously arranged, if the outer surface of the inner ring of the central gear is of a truncated cone structure with an inclination, only one bottom axial limiting or top axial limiting can be arranged, the bearing capacity of the central gear can be improved, when the inner ring of the central gear is in threaded fit with the spindle 4, the outer ring of the central gear rotates, when the spindle reciprocates up and down, the inner ring of the central gear cannot axially float, the noise during operation is reduced, the service life of the equipment is prolonged, the specific bottom axial limiting or top axial limiting can adopt a step form for limiting, and other modes can also be adopted.

The optimized inner thread at the central hole of the inner ring is a multi-thread and is matched with the thread of the main shaft, so that the processing is convenient, the transmission efficiency between the central gear and the main shaft can be improved, and two lines, three lines or four lines can be adopted, and the four lines are not more than four lines generally.

Further, the inner ring of the sun gear is a wear-resistant sun gear inner ring, and can be made of a POM wear-resistant material or other wear-resistant materials, so that the sun gear inner ring and the main shaft have good sliding characteristics.

Further, the outer ring of the central gear is a high-strength outer ring of the central gear, and specifically, the outer ring of the central gear can be made of nylon materials, fiber reinforced plastics or other high-strength metal materials.

Note: this application mainly protects two ingredient sun gear structures of integral type, and other transmission part structures are prior art, so not shown.

To sum up, the utility model discloses a pair of integral type dual module sun gear structure of protection, processing preparation is convenient, and the running noise is little, and longe-lived and can bear great transmission load.

Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an integral type dual module sun gear structure, its characterized in that, is including fixed sun gear inner circle and the sun gear outer lane as an organic whole, the sun gear inner circle is equipped with and has the internal screw thread inner circle centre bore, and sun gear inner circle surface is equipped with a plurality of vertical recesses along the axial, the sun gear outer lane be equipped with a plurality of teeth of a cogwheel and with sun gear inner circle surface complex outer lane centre bore, outer lane centre bore department be equipped with a plurality of vertical recess complex straight-teeth of sun gear inner circle, and it is spacing to be equipped with the axial between sun gear inner circle surface and the sun gear outer lane centre bore.

2. The one-piece, dual component sun gear structure of claim 1, wherein the outer surface of the inner race of the sun gear is a tapered, frusto-conical configuration.

3. An integral dual component sun gear structure according to claim 1 or claim 2 wherein the axial limit is a bottom axial limit or a top axial limit or both located between the outer surface of the inner ring of the sun gear and the central bore of the outer ring of the sun gear.

4. An integrated two-component sun gear structure according to claim 1 or 2 wherein the internal thread at the bore of the inner race is a multiple start thread and is engaged with the spindle thread.

5. An integrated dual component sun gear structure according to claim 1 or claim 2 wherein the inner sun gear ring is a wear resistant inner sun gear ring.

6. The one-piece, dual component sun gear structure of claim 3 wherein said sun outer race is a high strength sun outer race.