CN201627814U

CN201627814U - Crankshaft

Info

Publication number: CN201627814U
Application number: CN200920283117XU
Authority: CN
Inventors: 刘训富; 倪圣丰; 曾开祥
Original assignee: YANCHENG JIANGDONG CRANKSHAFT MANUFACTURING Co Ltd
Current assignee: YANCHENG JIANGDONG CRANKSHAFT MANUFACTURING Co Ltd
Priority date: 2009-12-28
Filing date: 2009-12-28
Publication date: 2010-11-10
Anticipated expiration: 2019-12-28

Abstract

The utility model relates to the technical field of mechanical processing, in particular to a crankshaft, which comprises a crankshaft body, a balancing block and a connecting component. The crankshaft body is connected with the balancing block through the connecting component; the bottom of the crankshaft body is swallow-tailed; a groove matching with the swallow-tailed shape at the bottom of the crankshaft body is arranged on the upper portion of the balancing block; the connecting component is designed into a built-in pin structure which includes that positioning slotted holes are respectively arranged at the bottom of the crankshaft body and in the middle of the balancing block; and a spring and a positioning pin are installed inside each positioning slotted hole of the crankshaft body. The crankshaft has the advantages of solving the problem that a balancing block of an existing crankshaft is easy to fall off by adopting a dovetail groove assembly structure and the built-in pin structure, simultaneously simplifying assembly and needing fewer personnel, smaller site and lower production cost of parts.

Description

A kind of bent axle

Technical field:

The utility model relates to the Machining Technology field, be specially a kind of bent axle.

Background technique:

Bent axle is the major part of all internal-combustion engine, washing machine, air compressor, is made up of bent axle body, equilibrium block and connector element.Existing bent axle (fabricated construction) assembling position all is an Open architecture, with screw equilibrium block and bent axle body is coupled together.Owing to there is mechanical shock, screw can produce loosening phenomenon in the course of the work, and owing to the effect of expanding with heat and contract with cold that replaces, screw also can produce and come off, thereby causes equilibrium block to fall in addition, and this phenomenon is particularly evident in the single cylinder engine diesel engine.The direct result of falling equilibrium block is aircraft bombing, can produce car crash when ill-conditioned.

Summary of the invention:

The purpose of this utility model mainly provides and a kind ofly can solve the bent axle that its equilibrium block of split type bent axle easily comes off and assembles challenge.

Technical solution of the present utility model is: a kind of bent axle, comprise bent axle body, equilibrium block, connector element, bent axle body, equilibrium block connect by connector element, the bottom of bent axle body is a dovetail shaped, the groove that the bottom dovetail shaped of equilibrium block top and bent axle body coincide, connector element is designed to the internal pin structure;

Described internal pin structure is to have location notch hole in the middle of the bottom of bent axle body and equilibrium block, and spring and locating stud are housed in the location notch hole of bent axle body.

Adopt usefulness of the present utility model,, assembling is oversimplified owing to adopted dovetail groove assembly structure and internal pin structure to solve the caducous problem of equilibrium block of bent axle.Required personnel still less, required place is littler, the part cost of production is lower.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is the utility model structural representation

Fig. 2 is Figure 1A-A sectional drawing

Embodiment:

As shown in Figure 1, 2, a kind of bent axle, comprise bent axle body 1, equilibrium block 2, connector element 3, bent axle body 1, equilibrium block 2 connect by connector element 3, the bottom of bent axle body 1 is a dovetail shaped, the groove 4 that the bottom dovetail shaped of equilibrium block 2 tops and bent axle body 1 coincide, connector element 3 is designed to the internal pin structure; Described internal pin structure is to have location notch hole 31,32 in the middle of the bottom of bent axle body and equilibrium block, and spring 33 and locating stud 34 are housed in the location notch hole 31 of bent axle body 1.

The bottom of bent axle body 1 is a dovetail shaped, and groove 4 assemblings that the bottom dovetail shaped of equilibrium block 2 tops and bent axle body 1 coincide guarantee that based on interference fit bent axle body 1 is connected with equilibrium block 2 reliably, and the internal pin structure has guaranteed equilibrium block 2 axial no plaies.So, equilibrium block 2 all is fixed from all directions, can not come off again.

Claims

1. a bent axle comprises bent axle body, equilibrium block, connector element, and bent axle body, equilibrium block connect by connector element, it is characterized in that, the bottom of bent axle body is a dovetail shaped, the groove that the bottom dovetail shaped of equilibrium block top and bent axle body coincide, and connector element is designed to the internal pin structure.

2. a kind of bent axle according to claim 1 is characterized in that, the internal pin structure is to have location notch hole in the middle of the bottom of bent axle body and equilibrium block, and spring and locating stud are housed in the location notch hole of bent axle body.