阅读说明：本技术 一种传动链 (Transmission chain ) 是由 梁恩 于 2019-09-29 设计创作，主要内容包括：本发明涉及传动技术领域,尤其涉及一种传动链,包括若干用于与齿轮啮合的啮合件和用于将若干啮合件串联的第一链条和/或第二链条,啮合件的两侧设有对称布置的凸起部,凸起部设有球面凸起,啮合件的凸起部与相邻的啮合件的凸起部相互接触。本发明结构简单,通过在啮合件的两侧设置球面凸起,使传动链在转动过程中,减少传动链与传动链两侧零部件的摩擦；另外,在无级变速传动技术领域,有助于避免传动过程中传动链与传动轮的卡链问题,提高无级变速器的工作稳定性,且相邻啮合件的凸起部互相接触,从而使啮合件紧密连接,提高传动链整体使用稳定性。(The invention relates to the technical field of transmission, in particular to a transmission chain which comprises a plurality of meshing parts used for meshing with gears and a first chain and/or a second chain used for connecting the meshing parts in series, wherein protruding parts which are symmetrically arranged are arranged on two sides of each meshing part and provided with spherical protrusions, and the protruding parts of the meshing parts are in mutual contact with the protruding parts of the adjacent meshing parts. The transmission chain is simple in structure, and the spherical protrusions are arranged on the two sides of the meshing part, so that the friction between the transmission chain and parts on the two sides of the transmission chain is reduced in the rotating process of the transmission chain; in addition, in the technical field of stepless speed change transmission, the problem of chain jamming of a transmission chain and a transmission wheel in the transmission process is avoided, the working stability of the stepless speed changer is improved, and the convex parts of adjacent meshing parts are contacted with each other, so that the meshing parts are tightly connected, and the integral use stability of the transmission chain is improved.)

1. A transmission chain is characterized by comprising a plurality of meshing parts used for meshing with gears and a first chain and/or a second chain used for connecting the meshing parts in series, wherein protruding parts which are symmetrically arranged are arranged on two sides of each meshing part and provided with spherical protrusions, and the protruding parts of the meshing parts are in contact with the protruding parts of the adjacent meshing parts.

2. The transmission chain according to claim 1, wherein the engaging members are provided with through holes, and the first chain is inserted through the through holes of the engaging members and fixedly connected with the engaging members, and is used for connecting the engaging members in series.

3. The transmission chain according to claim 2, wherein the number of the through holes is at least two, the number of the first chains is at least two, and the at least two first chains are arranged in parallel and respectively penetrate through the through holes.

4. The drive chain of claim 2, wherein the engaging member includes a shaft portion and the protrusions are disposed at two ends of the shaft portion, the spherical protrusion is disposed at one end of the protrusion opposite to the shaft portion, and the through hole is disposed on the shaft portion.

5. The transmission chain according to any one of claims 1 to 4, wherein the second chain comprises a plurality of link plates, the link plates are provided with two connecting holes which are symmetrically arranged, the engaging member is provided with an annular groove, and one connecting hole of two adjacent link plates is sleeved on the annular groove of the same engaging member.

6. The drive chain of claim 4, wherein the annular grooves open into the boss, the two annular grooves being symmetrically arranged.

7. Drive chain according to claim 2 or 3, characterized in that the cross-sectional shape of the perforations is rectangular and/or circular, the cross-sectional shape of the first chain being the same as the cross-sectional shape of the perforations.

Technical Field

The invention relates to the technical field of transmission, in particular to a transmission chain.

Background

At present, chains in the prior art are generally in meshed transmission by connecting chain plates and hole plates, meshed transmission by connecting hole plates and cylinders, a large number of hole plate teeth are needed on two side edges of the chains to be connected with the cylinders for meshed transmission, and the structure is complex.

Application No.: 201711273130.2 discloses a planetary gear tracking meshing stepless speed changer, the back of the fixed cone disk is provided with a radial slide block cone disk back sliding slot communicated with the cone disk radial slide rail, one end of the back of the fixed cone disk radial slide block is provided with a fixed cone disk back sliding slot which can make the planetary gear rotate synchronously along with the movement of the meshing tooth position of the transmission belt/chain when the diameter-changing movement of the planetary gear is carried out, when the transmission belt/chain changes the diameter, the transmission belt/chain is easy to collide with the radial slide block cone disk back sliding slot to cause chain jamming, thereby affecting the stability of the diameter-changing process and easily damaging the transmission belt/chain.

Disclosure of Invention

The invention aims to provide a transmission chain which is beneficial to improving the stability of the transmission chain used in the technical field of stepless speed change, simplifying the structure and reducing the cost.

In order to achieve the above object, the present invention provides a transmission chain, including a plurality of engaging members for engaging with gears and a first chain and/or a second chain for connecting the plurality of engaging members in series, wherein both sides of the engaging members are provided with symmetrically arranged convex portions, the convex portions are provided with spherical protrusions, and the convex portions of the engaging members are in contact with the convex portions of the adjacent engaging members.

Optionally, the engaging members are provided with through holes, and the first chain is inserted through the through holes of the engaging members, is fixedly connected with the engaging members, and is used for connecting the engaging members in series.

Optionally, the number of the through holes is at least two, the number of the first chains is at least two, and the at least two first chains are arranged in parallel and respectively penetrate through the through holes.

Optionally, the engaging member includes a shaft portion and protrusions disposed at two ends of the shaft portion, the spherical protrusion is disposed at one end of the protrusion opposite to the shaft portion, and the through hole is disposed in the shaft portion.

Optionally, the second chain comprises a plurality of chain plates, the chain plates are provided with two symmetrically arranged connecting holes, the meshing member is provided with an annular groove, and one of the connecting holes of two adjacent chain plates is sleeved on the annular groove of the same meshing member.

Optionally, the annular grooves are formed in the protruding portion, and the two annular grooves are symmetrically arranged.

Optionally, the cross-sectional shape of the through hole is rectangular and/or circular, and the cross-sectional shape of the first chain is the same as the cross-sectional shape of the through hole.

The embodiment of the invention has the following technical effects:

the transmission chain is simple in structure, and the spherical protrusions are arranged on the two sides of the meshing part, so that the friction between the transmission chain and parts on the two sides of the transmission chain is reduced in the rotating process of the transmission chain; in addition, in the technical field of stepless speed change transmission, the problem of chain jamming of a transmission chain and a transmission wheel in the transmission process is avoided, the working stability of the stepless speed changer is improved, and the convex parts of adjacent meshing parts are contacted with each other, so that the meshing parts are tightly connected, and the integral use stability of the transmission chain is improved.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment 1 of the present invention;

fig. 2 is a schematic structural view of an engaging member in preferred embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of the preferred embodiment 2 of the present invention;

fig. 4 is a schematic structural view of an engaging member in preferred embodiment 2 of the present invention;

FIG. 5 is a schematic structural view of the preferred embodiment 3 of the present invention;

FIG. 6 is a schematic structural view of an engaging member in the preferred embodiment 3 of the present invention;

FIG. 7 is a schematic structural view of the preferred embodiment 4 of the present invention;

FIG. 8 is a schematic structural view of an engaging member in the preferred embodiment 4 of the present invention;

FIG. 9 is a schematic structural view of the preferred embodiment 5 of the present invention;

fig. 10 is a schematic structural view of an engaging member in preferred embodiment 5 of the present invention;

FIG. 11 is a schematic structural view of the preferred embodiment 6 of the present invention;

fig. 12 is a schematic structural view of an engaging member in the preferred embodiment 6 of the present invention;

FIG. 13 is a schematic structural view of the preferred embodiment 7 of the present invention;

fig. 14 is a schematic view of the structure of the engaging member in the preferred embodiment 7 of the present invention.

Description of reference numerals:

1. the engaging piece 11, the spherical protrusion 12, the through hole 13, the annular groove 2, the first chain 3, the second chain 31, the chain plate 32, the connecting hole 4, the protrusion 5 and the shaft part.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, the terms "first", "second", and the like are employed in the present invention to describe various information, but the information should not be limited to these terms, which are used only to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.