CN216975031U

CN216975031U - Internal combustion engine non-vibration crankshaft connecting rod assembly

Info

Publication number: CN216975031U
Application number: CN202220660912.1U
Authority: CN
Inventors: 张�浩; 杨阳
Original assignee: Chongqing Huanying Machinery Co ltd
Current assignee: Chongqing Huanying Machinery Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-15
Anticipated expiration: 2032-03-24

Abstract

The utility model relates to the technical field of internal combustion engines, in particular to a non-vibration crankshaft connecting rod assembly of an internal combustion engine, which comprises a crankshaft main body, the crankshaft main body is provided with a connecting rod pin, two ends of the connecting rod pin are symmetrically provided with a connecting balancing weight, the ends of the balancing weights, which are far away from the connecting rod pin, are provided with mounting shafts, the outer walls of the mounting shafts are sleeved with bearings, the outer wall of the bearing is provided with a thrust piece assembly, the thrust piece assembly comprises an upper thrust piece and a lower thrust piece, the bearing is sleeved on the outer wall of the mounting shaft, the thrust piece assembly is mounted on the outer wall of the bearing, the thrust piece assembly is fixedly mounted on an internal combustion engine box body, radial shaking of a crankshaft main body is radially limited by the thrust piece assembly and the bearing, and the connection among the mounting shaft, the bearing and the thrust piece assembly can be locked by the connection design of the thrust piece assembly, so that the connection tightness is ensured, and the generation and development of vibration can be effectively limited.

Description

Internal combustion engine non-vibration crankshaft connecting rod assembly

Technical Field

The utility model relates to the technical field of internal combustion engines, in particular to a non-vibration crankshaft connecting rod assembly of an internal combustion engine.

Background

When designing the crankshaft connecting rod assembly of the internal combustion engine, the dynamic balance is taken as the main technical requirement, that is, the finished crankshaft connecting rod assembly is made into any shape, the weight of the connecting rod pin direction installation part is equal to that of the opposite counterweight body, the crankshaft is not jumped when the dynamic balance test is carried out on the crankshaft, but the crankshaft is installed on the engine to generate vibration when running, the vibration generated by the engine is generated because the piston generates a rotary driving force on the crankshaft connecting rod pin through the connecting rod at the moment of the ignition and the working of the internal combustion engine, so that the crankshaft rotates, and the kinetic energy for driving the crankshaft to rotate only acts on the crankshaft connecting rod pin, so that the rotary inertia force on the crankshaft connecting rod pin is larger than that of the opposite counterweight body, the original dynamic balance of the crankshaft is broken, the vibration is generated, and the vibration can be eliminated reversely from the installation of the crankshaft.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a non-vibrating crankshaft connecting rod assembly for an internal combustion engine to solve the problems set forth above in the background art.

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

the utility model provides a non-vibration crankshaft connecting rod assembly of internal-combustion engine, includes the bent axle main part, be provided with the connecting rod round pin in the bent axle main part, the both ends symmetry of connecting rod round pin is provided with even balancing weight, the one end that the connecting rod round pin was kept away from to the balancing weight all is provided with the installation axle, the bearing has been cup jointed to the outer wall of installation axle, the outer wall of bearing is provided with thrust piece subassembly, thrust piece subassembly is including going up thrust piece and thrust piece down.

As a preferable scheme of the present invention, a connecting shaft is disposed at one side of the mounting shaft, and a key groove is disposed on an outer wall of the connecting shaft.

As a preferable scheme of the present invention, the upper thrust plate and the lower thrust plate are both semicircular ring structures, connecting grooves are provided at both ends of the upper thrust plate, and connecting holes are provided at end surfaces of the connecting grooves.

In a preferred embodiment of the present invention, the lower thrust plate has two ends provided with a fitting groove corresponding to the connecting groove, and an end surface of the fitting groove is provided with a fitting hole.

In a preferred embodiment of the present invention, the connection hole is connected to the mating hole by a countersunk head screw.

As a preferable aspect of the present invention, the thrust plate assembly is fixedly mounted on the internal combustion engine case.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the bearing is sleeved on the outer wall of the mounting shaft, the thrust sheet assembly is mounted on the outer wall of the bearing and fixedly mounted on the internal combustion engine box body, the radial shaking of the crankshaft main body is radially limited by the thrust sheet assembly and the bearing, and the connection among the mounting shaft, the bearing and the thrust sheet assembly can be locked by the connection design of the thrust sheet assembly, so that the connection tightness is ensured, and the generation and development of vibration can be effectively limited.

2. According to the utility model, the balancing weights are symmetrically arranged, so that the two ends of the connecting rod pin can counteract inertia force and weaken the influence of the inertia force on the connecting rod pin, and the symmetrically arranged balancing weights can weaken the generation of vibration fundamentally.

Drawings

FIG. 1 is an isometric view of the structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a front view of the structure of the upper thrust plate of the present invention;

FIG. 4 is a schematic view of a lower thrust plate according to the present invention.

In the figure: 1. a crankshaft main body; 2. a bearing; 3. a thrust plate assembly; 101. a link pin; 102. a balancing weight; 103. installing a shaft; 104. a connecting shaft; 105. a keyway; 301. an upper thrust plate; 302. a lower thrust plate; 3011. connecting grooves; 3012. connecting holes; 3021. a mating groove; 3022. a mating hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments, and based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

While several embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in order to facilitate an understanding of the utility model, the utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed to provide a more complete disclosure of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a there is not vibration bent axle link assembly of internal-combustion engine, including bent axle main part 1, be provided with connecting rod pin 101 in the bent axle main part 1, the both ends symmetry of connecting rod pin 101 is provided with even balancing weight 102, the symmetry sets up balancing weight 102, connecting rod pin 101 both ends that can offset the inertia power, weaken the influence of inertia power to connecting rod pin 101, the symmetry sets up balancing weight 102 and can weaken the production of vibration from the root, the one end that connecting rod pin 101 was kept away from to balancing weight 102 all is provided with installation axle 103, the outer wall of installation axle 103 has cup jointed bearing 2, the outer wall of bearing 2 is provided with thrust plate subassembly 3, thrust plate subassembly 3 includes top thrust plate 301 and thrust plate 302 down, utilize thrust plate subassembly 3 and the radial shake of bearing 2 radial restriction bent axle main part 1.

Referring to fig. 1, 2, 3 and 4, in an embodiment, a connecting shaft 104 is disposed on one side of a mounting shaft 103, a key groove 105 is disposed on an outer wall of the connecting shaft 104, the connecting shaft 104 and the key groove 105 are used for transmitting motion of a crankshaft body 1, an upper thrust plate 301 and a lower thrust plate 302 are both semi-circular ring structures, connecting grooves 3011 are disposed at two ends of the upper thrust plate 301, a connecting hole 3012 is disposed at an end surface of the connecting groove 3011, mating grooves 3021 are disposed at two ends of the lower thrust plate 302 corresponding to the connecting grooves 3011, mating holes 3022 are disposed at end surfaces of the mating grooves 3021, the connecting hole 3012 and the mating holes 3022 are connected by a countersunk screw, a thrust plate assembly 3 is fixedly mounted on an internal combustion engine case, by providing the connection groove 3011 and the fitting groove 3021, the connection between the mounting shaft 103, the bearing 2, and the thrust plate assembly 3 can be fastened, the tightness of the connection thereof is ensured, and thus the elimination of radial vibration can be ensured.

The working process of the utility model is as follows: the crankshaft body 1 is provided with a connecting rod pin 101, two ends of the connecting rod pin 101 are symmetrically provided with a connecting balance weight block 102, the balance weight blocks 102 are symmetrically arranged, two ends of the connecting rod pin 101 can offset inertia force and weaken the influence of the inertia force on the connecting rod pin 101, the balance weight blocks 102 can weaken the generation of vibration from the root, one end of the balance weight block 102 far away from the connecting rod pin 101 is provided with a mounting shaft 103, the outer wall of the mounting shaft 103 is sleeved with a bearing 2, the outer wall of the bearing 2 is provided with a thrust plate assembly 3, the thrust plate assembly 3 comprises an upper thrust plate 301 and a lower thrust plate 302, the thrust plate assembly 3 and the bearing 2 are used for radially limiting the radial shaking of the crankshaft body 1, the upper thrust plate 301 and the lower thrust plate 302 are of semicircular ring structures, two ends of the upper thrust plate 301 are provided with connecting grooves 3011, the end face of the connecting groove 3012 is provided with a connecting hole 3021, two ends of the lower thrust plate 302 are provided with matching grooves 3021 corresponding to the connecting groove 3011, the end face of the matching groove 3021 is provided with a matching hole 3022, the connecting hole 3012 is connected with the matching hole 3022 through a countersunk screw, the thrust plate assembly 3 is fixedly mounted on the internal combustion engine box body, the connection among the mounting shaft 103, the bearing 2 and the thrust plate assembly 3 can be fastened by arranging the connecting groove 3011 and the matching groove 3021, the connection tightness of the connection is ensured, and therefore the elimination of radial vibration can be ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an internal-combustion engine does not have vibration bent axle link assembly, includes bent axle main part (1), its characterized in that: the crankshaft is characterized in that a connecting rod pin (101) is arranged on the crankshaft main body (1), two ends of the connecting rod pin (101) are symmetrically provided with a connecting balance weight (102), one end, away from the connecting rod pin (101), of the balance weight (102) is provided with an installation shaft (103), the outer wall of the installation shaft (103) is sleeved with a bearing (2), the outer wall of the bearing (2) is provided with a thrust plate assembly (3), and the thrust plate assembly (3) comprises an upper thrust plate (301) and a lower thrust plate (302).

2. The vibrationless crankshaft connecting rod assembly of claim 1, wherein: one side of installation axle (103) is provided with connecting axle (104), the outer wall of connecting axle (104) is provided with keyway (105).

3. The vibrationless crankshaft connecting rod assembly of claim 1, wherein: the upper thrust plate (301) and the lower thrust plate (302) are both in a semicircular structure, connecting grooves (3011) are arranged at two ends of the upper thrust plate (301), and connecting holes (3012) are arranged on end faces of the connecting grooves (3011).

4. The vibrationless crankshaft connecting rod assembly of claim 3, wherein: and the two ends of the lower thrust plate (302) are provided with matching grooves (3021) corresponding to the connecting grooves (3011), and the end surfaces of the matching grooves (3021) are provided with matching holes (3022).

5. The vibrationless crankshaft connecting rod assembly of claim 4, wherein: the connecting holes (3012) are connected with the matching holes (3022) through countersunk head screws.

6. The vibrationless crankshaft connecting rod assembly of claim 5, wherein: the thrust plate assembly (3) is fixedly arranged on an internal combustion engine box body.