阅读说明：本技术 一种用于支座和转动摇臂的调隙轴套 (Gap adjusting shaft sleeve for support and rotary rocker arm ) 是由 罗云鹤 曾晓洁 杨忠耀 于 2020-11-16 设计创作，主要内容包括：本发明公开了一种用于支座和转动摇臂的调隙轴套,包括轴套本体,所述轴套本体包括用于与支座相接触的限位凸起,以及用于与转动摇臂中连接孔相转动连接的连接段,并在所述连接段的侧壁上设有与所述转动摇臂相通的储油槽；所述轴套本体中的限位凸起用于限制所述支座和转动摇臂之间的最小间隙；所述轴套本体中的连接段用于控制转动摇臂的活动间隙。采用本发明所述的调隙轴套,能够控制支座与转动摇臂之间的最小间隙和转动摇臂的活动间隙,具有结构简单,维修方便,能够有效降低维修成本,安全实用,适合推广使用。(The invention discloses a clearance adjusting shaft sleeve for a support and a rotating rocker arm, which comprises a shaft sleeve body, wherein the shaft sleeve body comprises a limiting bulge and a connecting section, the limiting bulge is used for being contacted with the support, the connecting section is used for being rotatably connected with a connecting hole in the rotating rocker arm, and an oil storage tank communicated with the rotating rocker arm is arranged on the side wall of the connecting section; the limiting bulge in the shaft sleeve body is used for limiting the minimum clearance between the support and the rotary rocker arm; the connecting section in the shaft sleeve body is used for controlling the movable clearance of the rotary rocker arm. The gap adjusting shaft sleeve can control the minimum gap between the support and the rotating rocker arm and the movable gap of the rotating rocker arm, has the advantages of simple structure, convenient maintenance, effective reduction of maintenance cost, safety, practicability and suitability for popularization and use.)

1. The utility model provides a transfer clearance axle sleeve for support and rotating rocker arm, includes axle sleeve body (3), its characterized in that: the shaft sleeve body (3) comprises a limiting bulge (31) which is used for being in contact with the support (2) and a connecting section (32) which is used for being in rotary connection with a connecting hole in the rotary rocker arm (4), and an oil storage tank (33) which is communicated with the rotary rocker arm (4) is arranged on the side wall of the connecting section (32); a limiting bulge (31) in the shaft sleeve body (3) is used for limiting the minimum clearance between the support (2) and the rotating rocker arm (4); the connecting section (32) in the shaft sleeve body (3) is used for controlling the movable clearance of the rotating rocker arm (4).

2. A gap-setting bushing for pedestals and pivoting rocker arms as defined in claim 1, wherein: the oil storage tank (33) is of a groove structure and is annularly arranged in the middle of the connecting section (32) along the outer side surface of the connecting section (32); the length of linkage segment (32) slightly is greater than the thickness of rotating rocker arm (4), rotating rocker arm (4) cup joints through the connecting hole and sets up on linkage segment (32) in axle sleeve body (3).

3. A gap-setting bushing for pedestals and pivoting rocker arms as defined in claim 1, wherein: the limiting protrusion (31) is of an annular protrusion structure and is arranged along the circumferential direction far away from one end of the connecting section (32).

4. A gap-setting bushing for pedestals and pivoting rocker arms as defined in claim 1, wherein: the shaft sleeve body (3) is made of bronze materials and is made into a cylindrical shape according to a set specification, the shaft sleeve body (3) is fixed between the support (2) and the rotating rocker arm (4) through a bolt (1), a nut (5) and a gasket (6), the rotating rocker arm (4) can rotate around the shaft sleeve body (3), and the minimum gap between the support (2) and the rotating rocker arm (4) is the thickness of the limiting protrusion (31); the difference value between the length of the connecting section (32) and the thickness of the rotating rocker arm (4) is the movable clearance of the rotating rocker arm (4); utilize the clearance prevents nut (5) from hugging closely in the installation the swing arm rotates, effectively avoids swing arm (4) is rotated dead potential safety hazard of in-process card.

Technical Field

The invention relates to the technical field of mechanical transmission, in particular to a gap adjusting shaft sleeve for a support and a rotary rocker arm.

Background

Mechanical transmission has various forms, and can be mainly divided into two types: the first is friction transmission of power and motion by means of friction force between the parts, including belt transmission, rope transmission, friction wheel transmission, etc. The friction transmission can easily realize stepless speed change, can adapt to transmission occasions with larger shaft distance, can play the roles of buffering and protecting a transmission device by overload slipping, but the transmission can not be used in high-power occasions generally and can not ensure accurate transmission ratio. And the other is the meshing transmission which transmits power or motion by means of the meshing of a driving part and a driven part or the meshing of an intermediate part, and comprises gear transmission, chain transmission, spiral transmission, harmonic transmission and the like. The meshing transmission can be used in high-power occasions, has accurate transmission ratio, and generally requires higher manufacturing precision and installation precision.

In the design of mechanical transmission, the rotary rocker arm and the support are widely applied to transmission links. Usually, a mounting shaft with a shaft shoulder is used for controlling the clearance between the support and the rotating rocker arm, and the movable clearance of the rotating rocker arm is adjusted by unscrewing a nut, so that the rotating rocker arm is prevented from being locked and cannot rotate. By adopting the mode, the movable clearance is inconvenient to adjust, the consistency is poor, and when the nut is out of safety, the hidden trouble that the rotating rocker arm is blocked is caused. Meanwhile, the used mounting shaft needs to be specially made, and the existing standard bolt part cannot be directly used; meanwhile, the installation shaft and the rotary rocker arm move relatively, so that abrasion is generated, and the repair and maintenance cost is high.

Disclosure of Invention

The invention aims to solve the technical problem in the background art and provides a shaft sleeve structure with a simple structure, and the assembled shaft sleeve can better control the minimum clearance between a rotating rocker arm and a support and the movable clearance of the rotating rocker arm by improving the existing shaft sleeve structure, in particular to a clearance adjusting shaft sleeve for the support and the rotating rocker arm.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a clearance adjusting shaft sleeve for a support and a rotary rocker arm comprises a shaft sleeve body, wherein the shaft sleeve body comprises a limiting bulge and a connecting section, the limiting bulge is used for being in contact with the support, the connecting section is used for being in rotary connection with a connecting hole in the rotary rocker arm, and an oil storage tank communicated with the rotary rocker arm is arranged on the side wall of the connecting section; the limiting bulge in the shaft sleeve body is used for limiting the minimum clearance between the support and the rotary rocker arm; the connecting section in the shaft sleeve body is used for controlling the movable clearance of the rotary rocker arm.

Furthermore, the gap adjusting shaft sleeve for the support and the rotary rocker arm is characterized in that the oil storage groove is of a groove structure and is annularly arranged in the middle of the connecting section along the outer side surface of the connecting section; the length of linkage segment slightly is greater than the thickness of rotation rocking arm, rotation rocking arm cup joints through the connecting hole and sets up on the linkage segment in the axle sleeve body.

Furthermore, the clearance adjusting shaft sleeve for the support and the rotary rocker arm is provided with a limiting bulge which is of an annular bulge structure and is arranged along the circumferential direction far away from one end of the connecting section.

Further, the gap adjusting shaft sleeve for the support and the rotating rocker arm is characterized in that a shaft sleeve body is made of bronze materials and is made into a cylindrical shape according to a set specification, the shaft sleeve body is fixed between the support and the rotating rocker arm through a bolt, a nut and a gasket, the rotating rocker arm can rotate around the shaft sleeve body, and the minimum gap between the support and the rotating rocker arm is the thickness of the limiting protrusion; the difference value between the length of the connecting section and the thickness of the rotating rocker arm is the movable gap of the rotating rocker arm; utilize the clearance prevents the nut from hugging closely in the installation the swing arm rotates, effectively avoids the swing arm is rotated the dead potential safety hazard of in-process card.

By adopting the clearance adjusting shaft sleeve for the support and the rotating rocker arm, the shaft sleeve body is provided with the limiting bulge and the connecting section, and the connecting section is internally provided with the oil storage tank; the shaft sleeve is arranged between the rotating rocker arm and the support, the size of the shaft sleeve can accurately control the minimum clearance between the support and the rotating rocker arm and the movable clearance of the rotating rocker arm, and the hidden danger that the rotating rocker arm is locked and cannot move is effectively avoided; meanwhile, the shaft sleeve body is made of bronze materials, so that the shaft sleeve body has better supporting rigidity and can protect the rotary rocker arm. The gap adjusting shaft sleeve can control the minimum gap between the support and the rotating rocker arm and the movable gap of the rotating rocker arm, has the advantages of simple structure, convenient maintenance, effective reduction of maintenance cost, safety, practicability and suitability for popularization and use.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

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

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic view of the present invention in its installed configuration.

Shown in the figure: 1-bolt, 2-support, 3-shaft sleeve body, 31-limit bulge, 32-connecting section, 33-oil storage tank, 4-rotary rocker arm, 5-nut and 6-gasket.

Detailed Description

As shown in fig. 1 to 3, the gap adjusting shaft sleeve for the support and the rotary rocker arm comprises a shaft sleeve body 3, wherein the shaft sleeve body 3 comprises a limiting protrusion 31 used for contacting with the support 2 and a connecting section 32 used for being rotatably connected with a connecting hole in the rotary rocker arm 4, and an oil storage groove 33 communicated with the rotary rocker arm 4 is arranged on the side wall of the connecting section 32; the limiting bulge 31 in the shaft sleeve body 3 is used for limiting the minimum clearance between the support 2 and the rotary rocker arm 4; the connecting section 32 in the shaft sleeve body 3 is used for controlling the movable clearance of the rotary rocker arm 4, and the thickness of the rotary rocker arm 4 is a numerical value C. The oil storage tank 33 is of a groove structure and is annularly arranged in the middle of the connecting section 32 along the outer side surface of the connecting section 32, and the length of the connecting section 32 is a value B; the length of the connecting section 32 is slightly larger than the thickness of the rotary rocker arm 4, and the rotary rocker arm 4 is sleeved on the connecting section 32 in the shaft sleeve body 3 through a connecting hole. The limiting protrusion 31 is of an annular protrusion structure, the thickness of the limiting protrusion 31 is a value A, and the limiting protrusion is arranged along the circumferential direction far away from one end of the connecting section 32.

Further, the gap adjusting shaft sleeve for the support and the rotating rocker arm is characterized in that a shaft sleeve body 3 is made of bronze materials and is made into a cylindrical shape according to a set specification, the shaft sleeve body 3 is fixed between the support 2 and the rotating rocker arm 4 through a bolt 1, a nut 5 and a gasket 6, the rotating rocker arm 4 can rotate around the shaft sleeve body 3, the minimum gap between the support 2 and the rotating rocker arm 4 is the thickness of the limiting protrusion 31, and the distance of the minimum gap is a numerical value A; the difference between the length of the connecting section 32 and the thickness of the rotary rocker arm 4 is the moving clearance of the rotary rocker arm 4, i.e. the distance of the moving clearance is the difference between the value B and the value C; utilize the clearance prevents nut 5 from hugging closely in the installation the swing arm rotates, effectively avoids swing arm 4 is rotated the dead potential safety hazard of in-process card.

By adopting the clearance adjusting shaft sleeve for the support and the rotating rocker arm, as the shaft sleeve body 3 is provided with the limiting bulge 31 and the connecting section 32, and simultaneously, according to the thicknesses of the support 2 and the rotating rocker arm 4, the sleeve is made into a cylindrical shape by adopting bronze materials according to set specifications in advance, and the connecting section 32 is provided with the oil storage tank 33; the prepared shaft sleeve body 3 is fixedly arranged between the rotary rocker arm 4 and the support 2 through the bolt 1, the nut 5 and the gasket 6, the minimum clearance between the support 2 and the rotary rocker arm 4 and the movable clearance of the rotary rocker arm 4 can be accurately controlled through setting the thickness of the limiting bulge 31 as a numerical value A and the length of the connecting section 32 as a numerical value B, and the hidden danger that the rotary rocker arm 4 is blocked and cannot move is effectively avoided; meanwhile, the shaft sleeve body 3 is made of bronze materials, so that the shaft sleeve has good supporting rigidity and can protect the rotary rocker arm 4. In addition, because be equipped with on the linkage segment 32 in axle sleeve body 3 with the communicating oil storage tank 33 of rocking arm 4 rotates, through oil storage tank 33 is used for the oil storage, can improve lubricated effect, prevents to rotate rocking arm 4 and is in the centre on axle sleeve body 3 rotates the in-process and causes the condition that the product constantly changed because of wearing and tearing, reduces the maintenance cost.

In conclusion, the gap adjusting shaft sleeve can control the minimum gap between the support and the rotating rocker arm and the movable gap of the rotating rocker arm, has the advantages of simple structure, convenience in maintenance, capability of effectively reducing the maintenance cost, safety, practicability and suitability for popularization and use.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art, and any modifications, equivalents, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.