CN210949507U

CN210949507U - Low-noise long-life connecting rod

Info

Publication number: CN210949507U
Application number: CN201922067308.9U
Authority: CN
Inventors: 张晓林
Original assignee: Qingdao Bohongsheng Machinery Co ltd
Current assignee: Qingdao Bohongsheng Machinery Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-07
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a low noise long-life connecting rod, including little head hole and big head ring one of fixed connection at the spliced pole both ends, it is connected with big head ring two to rotate on the big head ring one, and installs fixed knot structure between big head ring one and the big head ring two, the downthehole annular slab that installs a plurality of two bisymmetry of little head, and all install a extending structure between every annular slab and the little head hole, also install the annular slab of a plurality of two bisymmetry between big head ring one and the big head ring two, every the annular slab size differs, and also installs an extending structure between every annular slab and big head ring one and the big head ring two, every the extending structure size differs. Has the advantages that: the utility model discloses can guarantee the compact type between connecting rod and the connecting piece, reduce the possibility that the clearance appears between the two, avoid because of the two possibility that wearing and tearing appear or produce the noise, improve the life of this connecting rod to a certain extent, reduce the possibility that the noise appears.

Description

Low-noise long-life connecting rod

Technical Field

The utility model relates to a connecting rod technical field especially relates to a long-life connecting rod of low noise.

Background

The connecting rod is generally a workpiece for connecting a piston and a crankshaft, and mainly comprises a connecting rod body, a large-end hole, a small-end hole and the like, and can transmit acting force borne by the piston to the crankshaft, so that reciprocating motion of the piston is converted into rotary motion of the crankshaft, and the connecting rod is widely used in engines.

Common connecting rod is integrated into one piece usually, in the use, easily because of connecting rod or its interior connecting piece receives cold or be heated and produce deformation to lead to appearing the clearance between connecting rod and the connecting piece, the existence in clearance has increaseed the possibility of wearing and tearing between the two, and has improved the probability that the noise appears.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the connecting rod is easy to wear or produce noise when in use in the prior art, and providing a connecting rod with low noise and long service life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a low noise long-life connecting rod, includes that fixed connection is in the microcephaly hole and the macrocephaly ring one at spliced pole both ends, it is connected with macrocephaly ring two to rotate on the macrocephaly ring one, and installs fixed knot structure between macrocephaly ring one and the macrocephaly ring two, install a plurality of two bisymmetry's annular slab in the microcephaly hole, and all install a extending structure between every annular slab and the microcephaly hole, also install a plurality of two bisymmetry's annular slab between macrocephaly ring one and the macrocephaly ring two, every the annular slab size differs, and also installs an extending structure between every annular slab and macrocephaly ring one and the macrocephaly ring two, every the extending structure size differs.

In foretell long-life connecting rod of low noise, fixed knot constructs by connecting block one, connecting block two, thread groove and bolt assembly, a connecting block fixed mounting is on the outer wall of bull collar one, two cooperation connecting block fixed mounting of connecting block are on the outer wall of bull collar two, connecting block one is equipped with the thread groove with two cooperations of connecting block, bolt threaded connection is in the thread groove.

In foretell long-life connecting rod of low noise, extending structure comprises ring channel, a plurality of fixed block, a plurality of square groove and a plurality of spring, the ring channel is seted up on the inner wall in microcephaly hole, and is a plurality of square groove evenly installs on the lateral wall of ring channel, every the spring is fixed mounting respectively in the square groove that corresponds, every the equal fixed mounting of fixed block is in the one end of the spring that corresponds, and a plurality of fixed blocks extend to microcephaly downthehole one end all with annular slab fixed connection.

In foretell low noise long-life connecting rod, two corresponding recesses have been seted up in the lateral wall cooperation of ring channel and square groove, fixed mounting has two lugs with recess matched with on the fixed block.

In the connecting rod with low noise and long service life, a rubber layer is fixedly arranged at one end, far away from the fixed block, of the annular plate, and the width of the annular plate is smaller than or equal to that of the annular groove.

In the connecting rod with low noise and long service life, the small end hole, the connecting column and the annular plate are all made of hard metal materials.

Compared with the prior art, the utility model discloses the advantage lies in:

1: through the cooperation of annular plate and rubber layer, can play certain guard action to the junction of connecting piece and this connecting rod, reduce the possibility of wearing and tearing between the two, improved the life of this connecting rod to a certain extent.

2: when producing the clearance between this connecting rod and the connecting piece, through the cooperation of spring and fixed block, can guarantee the compactness between the two, avoid because of there being the possibility that the clearance leads to wearing and tearing or the noise appears between the two, further improved life, and reduced the possibility that the noise appears.

3: the design of the fixing structure is convenient for fixing and separating the large head ring I and the large head ring II, so that the connecting rod is more convenient to mount to a certain extent, and the possibility of losing parts due to misoperation is avoided.

To sum up, the utility model discloses can guarantee the compact type between connecting rod and the connecting piece, reduce the possibility that the clearance appears between the two, avoid because of the two possibility that wearing and tearing or noise production appear, improve the life of this connecting rod to a certain extent, reduce the possibility that the noise appears.

Drawings

Fig. 1 is a schematic structural view of a low-noise long-life connecting rod provided by the present invention;

FIG. 2 is a schematic structural view of a first large head ring and a second large head ring in FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is an enlarged view of the structure of portion A in FIG. 1;

fig. 5 is an enlarged schematic view of the structure of part B in fig. 3.

In the figure: the structure comprises a small head hole 1, a connecting column 2, a large head ring I3, a large head ring II 4, a fixing structure 5, an annular groove 6, a fixing block 7, an annular plate 8, a square groove 9, a spring 10, a bump 11 and a groove 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, a low-noise long-life connecting rod comprises a small head hole 1 and a large head ring one 3 which are fixedly connected to two ends of a connecting column 2, wherein the large head ring one 3 is rotatably connected with a large head ring two 4, a fixing structure 5 is arranged between the large head ring one 3 and the large head ring two 4, and the large head hole is formed by the large head ring one 3 and the large head ring two 4 after the large head ring one 3 and the large head ring two 4 are fixed by the fixing structure 5.

Fixed knot constructs 5 by connecting block one, connecting block two, thread groove and bolt are constituteed, connecting block one fixed mounting is on big first 3 outer wall of overhead ring, connecting block two cooperation connecting block one fixed mounting is on big second 4 outer wall of overhead ring, connecting block one is equipped with the thread groove with the cooperation of connecting block two, bolt threaded connection is in the thread groove, the bolt is convenient for realize connecting block one with connecting block two fixed and separation with the cooperation of thread groove, thereby can realize big first 3 and the fixed and separation of overhead ring two 4, be convenient for the installation and the fixed of this connecting rod.

Install a plurality of pairwise symmetric annular plates 8 in tip hole 1, the one end fixed mounting that fixed block 7 was kept away from to annular plate 8 has the rubber layer, and when this connecting rod and connecting piece installation were finished, the design on rubber layer can play certain guard action to connecting piece and the junction of this connecting rod on the annular plate 8, reduces wearing and tearing between the two, has improved the life of this connecting rod to a certain extent.

A telescopic structure is installed between each annular plate 8 and the small end hole 1, after the connecting rod and the connecting piece are installed, the telescopic structure can give a certain buffer space for the connecting piece, the damage of the connecting rod or the connecting piece, which is not tightly connected with the connecting rod due to the fact that the connecting piece is cooled and reduced, is avoided, and the possibility of noise generation caused by the fact that a gap exists between the connecting rod and the connecting piece during working is also avoided.

A plurality of pairwise symmetrical annular plates 8 are also arranged between the first big head ring 3 and the second big head ring 4, the sizes of the annular plates 8 are different, an expansion structure is also arranged between each annular plate 8 and the first big head ring 3 as well as between each annular plate 8 and the second big head ring 4, and the sizes of the expansion structures are different.

Extending structure is by ring channel 6, a plurality of fixed block 7, a plurality of square groove 9 and a plurality of spring 10 are constituteed, ring channel 6 is seted up on the inner wall of microcephaly hole 1, a plurality of square groove 9 are evenly installed on the lateral wall of ring channel 6, every spring 10 is fixed mounting respectively in the square groove 9 that corresponds, the equal fixed mounting of every fixed block 7 is in the one end of the spring 10 that corresponds, and the one end that a plurality of fixed block 7 extend to microcephaly hole 1 all with annular slab 8 fixed connection, when the connecting piece in the connecting rod because of receiving cold contraction, spring 10's elastic force effect makes fixed block 7 be close to the connecting piece, it is close to the connecting piece to drive annular slab 8, thereby make connecting piece and this connecting rod keep being connected's compactness, avoid because of appearing the possibility that the clearance leads to.

The width of the annular plate 8 is smaller than or equal to that of the annular groove 6, the annular plate 8 can be completely contracted into the annular groove 6, and the possibility that the connecting piece and the connecting rod are inconvenient to install due to the fact that the annular plate 8 protrudes out of the annular groove 6 is avoided.

Two corresponding grooves 12 are formed in the side walls of the annular groove 6 and the square groove 9 in a matched mode, two lugs 11 matched with the grooves 12 are fixedly installed on the fixing block 7, and the annular plate 8 can be prevented from changing angles due to the matching of the grooves 12 and the lugs 11.

The small end hole 1, the connecting column 2 and the annular plate 8 are all made of hard metal materials (the hard metal materials can be made of alloy steel materials), the strength of each part is improved due to the use of the hard metal materials, and the service life of the connecting rod is further prolonged to a certain extent.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

In the utility model, during the actual operation, the staff installs a part of the connecting piece in the small end hole 1, then places the other part of the connecting piece between the big end ring one 3 and the big end ring two 4, and uses the fixed structure 5 to realize the connection of the big end ring one 3 and the big end ring two 4, and completes the installation operation of the connecting rod and the connecting piece, after the installation is completed, the elastic action of the spring 10 makes the annular plate 8 and the connecting piece tightly attached, the rubber layer on the rubber layer can play a certain protection role for the connecting piece and the small end hole 1, and reduces the possibility of abrasion between the two, and when the connecting rod is heated and expanded or the connecting piece is cooled and contracted, the elastic action of the spring 10 makes the annular plate 8 tightly attached to the connecting piece, the tightness of the connection between the connecting rod and the connecting piece can be continuously kept, the possibility of abrasion or noise caused by the occurrence of the gap between the two is avoided, and the service life of the connecting rod is improved, and reduces the possibility of noise.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A connecting rod with low noise and long service life, which comprises a small head hole (1) and a big head ring (3) which are fixedly connected with the two ends of a connecting column (2), it is characterized in that the big head ring II (4) is rotationally connected on the big head ring I (3), a fixed structure (5) is arranged between the big head ring I (3) and the big head ring II (4), a plurality of annular plates (8) which are symmetrical pairwise are arranged in the small end hole (1), and a telescopic structure is arranged between each annular plate (8) and the small end hole (1), a plurality of pairwise symmetrical annular plates (8) are also arranged between the first big head ring (3) and the second big head ring (4), the sizes of the annular plates (8) are different, and a telescopic structure is also arranged between each annular plate (8) and the large head ring I (3) and the large head ring II (4), and the size of each telescopic structure is different.

2. A low noise long life connecting rod according to claim 1, wherein said fixing structure (5) is composed of a first connecting block fixedly mounted on the outer wall of the first large head ring (3), a second connecting block fixedly mounted on the outer wall of the second large head ring (4), a threaded groove provided in the first connecting block in cooperation with the second connecting block, and a bolt threadedly coupled in the threaded groove.

3. A low noise long life connecting rod according to claim 1, characterized in that, extending structure comprises ring channel (6), a plurality of fixed block (7), a plurality of square groove (9) and a plurality of spring (10), ring channel (6) are seted up on the inner wall of microcephaly hole (1), and is a plurality of square groove (9) are evenly installed on the lateral wall of ring channel (6), every spring (10) respectively fixed mounting in the square groove (9) that corresponds, every the equal fixed mounting of fixed block (7) is in the one end of the spring (10) that corresponds, and the one end that a plurality of fixed block (7) extend to microcephaly hole (1) all with annular slab (8) fixed connection.

4. A low noise long life connecting rod as claimed in claim 3, wherein the annular groove (6) and the side wall of the square groove (9) are provided with two corresponding grooves (12), and the fixing block (7) is fixedly provided with two projections (11) which are matched with the grooves (12).

5. A low noise long life connecting rod according to claim 3, characterized in that the end of said annular plate (8) far from the fixed block (7) is fixedly provided with a rubber layer, and the width of said annular plate (8) is less than or equal to the width of the annular groove (6).

6. A low noise long life connecting rod according to claim 1, characterized in that said small end hole (1), connecting column (2) and annular plate (8) are made of hard metal material.