CN214660405U

CN214660405U - Camshaft convenient to installation

Info

Publication number: CN214660405U
Application number: CN202120563347.2U
Authority: CN
Inventors: 张文平
Original assignee: Anqing Qingda Mould Manufacturing Co ltd
Current assignee: Anqing Qingda Mould Manufacturing Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-11-09
Anticipated expiration: 2031-03-19

Abstract

The utility model provides a camshaft convenient to installation, including first camshaft and second camshaft, can dismantle the connection between first camshaft and the second camshaft, just first camshaft and second camshaft junction outside can dismantle the connection through outer snap ring, the utility model discloses simple structure, convenient operation can dismantle the connection through with the camshaft design by first camshaft and second camshaft to realize the quick assembly disassembly and the maintenance change of first camshaft and second camshaft, be equipped with outer snap ring through the design in the junction of first camshaft and second camshaft, strengthened the connection stability of first camshaft and second camshaft.

Description

Camshaft convenient to installation

Technical Field

The utility model belongs to the technical field of the camshaft, concretely relates to camshaft convenient to installation.

Background

The camshaft is a component in a piston engine. Its function is to control the opening and closing action of the valve. Although the rotational speed of the camshaft is half of that of the crankshaft in a four-stroke engine (the rotational speed of the camshaft is the same as that of the crankshaft in a two-stroke engine), the rotational speed is still high and the camshaft is subjected to a large torque, so that the camshaft is required to be high in strength and support in design, and the camshaft is generally made of high-quality alloy steel or alloy steel. Because the valve motion law is related to the power and the running characteristics of an engine, the camshaft design occupies a very important position in the design process of the engine.

Current camshaft is mostly the integrated into one piece structure, and its while stable in structure, processing and process are fairly complicated, and when the camshaft appears damaging, need change whole camshaft, increase the cost of maintaining, are unfavorable for the enterprise development.

SUMMERY OF THE UTILITY MODEL

Purpose of the utility model

To the technical problem, the utility model provides a camshaft convenient to installation for solve the technical problem who mentions in the background art.

Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides a camshaft convenient to installation, includes first camshaft and second camshaft, can dismantle the connection between first camshaft and the second camshaft, just the connection can be dismantled through outer snap ring in first camshaft and the outside of second camshaft junction.

The further improvement lies in that: the camshaft comprises a first camshaft and a second camshaft, and is characterized in that a first shaft sleeve is arranged at one end of the first camshaft, a groove is formed in the first shaft sleeve and is close to the first camshaft, a second shaft sleeve is arranged at one end of the second camshaft, a protrusion is arranged at one end of the second shaft sleeve, and the protrusion is connected in the groove in a matched mode.

The further improvement lies in that: and a first thread groove is formed in the outer snap ring, and a first shaft sleeve and a second shaft sleeve are connected to the first thread groove in a threaded manner.

The further improvement lies in that: the inner wall of the inner part of the outer snap ring is provided with a backing ring, a mounting hole is arranged in the backing ring, and the diameter of the mounting hole is larger than that of the bulge.

The further improvement lies in that: the shaft body diameters of the first camshaft and the second camshaft are larger than the diameter of the protrusion.

The further improvement lies in that: keep away from first camshaft, the one end of second camshaft is equipped with the bearing frame, the front end of bearing frame is equipped with the gear.

Advantageous effects

The technical scheme provided by the utility model, compared with prior art, following beneficial effect has:

the utility model discloses simple structure, convenient operation can dismantle the connection through with the camshaft design by first camshaft and second camshaft to realize the quick assembly disassembly and the maintenance change of first camshaft and second camshaft, be equipped with outer snap ring in the junction of first camshaft and second camshaft through the design, strengthened the connection stability of first camshaft and second camshaft.

Drawings

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

FIG. 2 is a schematic view of the connection relationship between the first shaft sleeve, the second shaft sleeve and the outer snap ring;

fig. 3 is a schematic view of the outer snap ring splitting structure of the present invention.

Reference numerals

1-a first camshaft 101-a first sleeve; 102-a groove; 2-a second camshaft; 201-second shaft sleeve; 202-a bump; 3-an external snap ring; 301-a first thread groove; 302-a backing ring; 302 a-mounting holes; 4-bearing seats; 5-base.

A specific embodiment;

in order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but which are provided so as to render the disclosure of the invention more thorough and complete.

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; 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; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative 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; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1-3, the present embodiment discloses a camshaft convenient to install, which includes a first camshaft 1 and a second camshaft 2, the first camshaft 1 and the second camshaft 2 are detachably connected, and the outside of the joint of the first camshaft 1 and the second camshaft 2 is detachably connected through an outer snap ring 3.

One end of the first camshaft 1 is provided with a first shaft sleeve 101, a groove 102 is formed in the first shaft sleeve 101 and is close to the first camshaft 1, one end of the second camshaft 2 is provided with a second shaft sleeve 201, one end of the second shaft sleeve 201 is provided with a bulge 202, and the bulge 202 is connected in the groove 102 in a matched mode.

A first thread groove 301 is formed in the outer snap ring 3, and a first shaft sleeve 101 and a second shaft sleeve 201 are connected to the first thread groove 301 in a threaded mode.

In this embodiment, the protrusion 202 and the groove 102 may be connected in a screw-fit manner, and the pitch of the protrusion 202 and the groove 102 may be designed to be the same as the pitch of the first sleeve 101 (or the second sleeve 201) and the outer snap ring 3.

The inner wall of the middle part of the outer snap ring 3 is provided with a backing ring 302, a mounting hole 302a is arranged in the backing ring 302, and the diameter of the mounting hole 302a is larger than that of the protrusion 202.

In the present embodiment, the protrusion 202 is configured as a cylinder, which is more convenient to operate compared with other shapes, i.e. the insertion of the protrusion 202 into the groove 102 is not affected no matter how the first bushing 101 and the second bushing 201 are installed.

The shaft body diameters of the first camshaft 1 and the second camshaft 2 are larger than the diameter of the projection 202. The first camshaft 1 comprises a first shaft body and a plurality of first clamping blocks distributed on the first shaft body, the second camshaft 2 comprises a second shaft body and a plurality of second clamping blocks distributed on the second shaft body, and the diameters of the first shaft body and the second shaft body are the same.

Keep away from first camshaft 1, the one end of second camshaft 2 is equipped with bearing frame 4, the front end of bearing frame 4 is equipped with gear 5.

In this embodiment, can design second camshaft 2 and bearing frame 4 fixed connection, when having the part to damage in the use, can directly change second camshaft 2, also can design second camshaft 2 and bearing frame 4 detachable connection (threaded connection or middle part bolted connection), all be equipped with the preformed hole on bearing frame 4 and gear 5 to and be equipped with the mounting pad at the front end of gear 5, be convenient for change bearing frame 4 and gear 5.

In the present embodiment, a bearing seat 4 and a gear 5 are provided to facilitate the installation of the camshaft in combination with the bearing cap.

The utility model discloses the theory of operation: when needing the installation camshaft, correspond first axle sleeve 101 and second axle sleeve 201 respectively and install in outer snap ring 3, in the installation, the protruding 202 embedding of second axle sleeve 201 front end is in the recess 102 of the first axle sleeve 101 correspondence end, thereby realize the quick installation of first camshaft 1 and second camshaft 2, when needs dismouting camshaft, extract first axle sleeve 101 and second axle sleeve 102 counter-rotation through the axis body that removes first camshaft 1 and second camshaft 2, when first axle sleeve 101 and second axle sleeve 102 extract from outer snap ring 3, protruding 202 is extracted from recess 102, thereby realize the separation of first camshaft 1 and second camshaft 2.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a camshaft convenient to installation which characterized in that: the camshaft comprises a first camshaft (1) and a second camshaft (2), wherein the first camshaft (1) and the second camshaft (2) are detachably connected, and the outer part of the joint of the first camshaft (1) and the second camshaft (2) is detachably connected through an outer clamping ring (3);

a first shaft sleeve (101) is arranged at one end of the first camshaft (1), a groove (102) is formed in the first shaft sleeve (101) and is close to the first camshaft (1), a second shaft sleeve (201) is arranged at one end of the second camshaft (2), a protrusion (202) is arranged at one end of the second shaft sleeve (201), and the protrusion (202) is connected in the groove (102) in a matched mode;

be equipped with first thread groove (301) in outer snap ring (3), first thread groove (301) female connection has first axle sleeve (101) and second axle sleeve (201).

2. A camshaft of claim 1 for ease of installation, wherein: outer snap ring (3) middle part inner wall is equipped with backing ring (302), be equipped with mounting hole (302 a) in backing ring (302), the diameter of mounting hole (302 a) is greater than the diameter of arch (202).

3. A camshaft of claim 1 for ease of installation, wherein: the shaft body diameter of the first camshaft (1) and the second camshaft (2) is larger than the diameter of the bulge (202).

4. A camshaft of claim 1 for ease of installation, wherein: keep away from first camshaft (1), the one end of second camshaft (2) is equipped with bearing frame (4), the front end of bearing frame (4) is equipped with gear (5).