CN207728718U

CN207728718U - New type crank

Info

Publication number: CN207728718U
Application number: CN201820075176.7U
Authority: CN
Inventors: 朱国雄
Original assignee: Huangshi Zhengda Industry And Trade Co Ltd
Current assignee: Huangshi Zhengda Industry And Trade Co Ltd
Priority date: 2018-01-17
Filing date: 2018-01-17
Publication date: 2018-08-14
Anticipated expiration: 2028-01-17

Abstract

The utility model is related to a kind of new type crank, including the first bent axle body and the second bent axle body, first bent axle body is identical with the structure of second bent axle body, all has output shaft, connecting rod, piston and two rotating discs being oppositely arranged；Further include a shaft coupling, shaft coupling includes a cylinder, and in the hole at the both ends that the output shaft of the first bent axle body and the second bent axle body is individually fixed in cylinder, radial one short slot of setting of the barrel of cylinder is provided through screw on the direction of short slot；Rotating disc includes ontology, balance weight and internal pin, and ontology and balance weight are by built-in pin connection, and the bottom of ontology is dovetail shaped, and balance weight top is equipped with the slot identical with the bottom dovetail shaped of ontology.First bent axle body of the new type crank, which is connected with the second bent axle body by the shaft coupling, to be driven, and two bent axles can be allowed to work simultaneously, simple in structure.And using dovetail groove assembling structure and internal pin can solve the problems, such as that balance weight is caducous, use is safer.

Description

New type crank

Technical field

The utility model is related to a kind of bent axle more particularly to a kind of new type cranks.

Background technology

Bent axle is the main rotary gadget of engine, and after loading onto connecting rod, the movement (reciprocal) up and down that can accept connecting rod becomes to follow Ring (rotation) moves.Existing bent axle is monomer structure, can not accomplish linkage setting.It is operated simultaneously when needing multiple bent axles When, designed crankshaft structure is extremely complex, and manufacture use is also inconvenient.

Existing bent axle assembly position is all Open architecture, and balance weight and crankshaft body are connected with screw.In work Since there are mechanical shock, screw will produce loose phenomenon during work, additionally, due to the alternate effect of expanding with heat and contract with cold, screw It will produce and fall off, fall so as to cause balance weight.The direct result for falling balance weight is aircraft bombing, and vehicle is will produce when ill-conditioned and ruins people It dies.

It is therefore desirable to design a kind of new type crank, to overcome the above problem.

Utility model content

The purpose of the utility model is to overcome the defect of the prior art, provide a kind of simple in structure, linkage use, Avoidable balance weight falls off, new type crank safe to use.

The utility model is realized in this way：

The utility model provides a kind of new type crank, including the first bent axle body and the second bent axle body, first bent axle body It is identical with the structure of the second bent axle body, all have an output shaft, a connecting rod, a piston and two rotations being oppositely arranged One end of disk, described two rotating discs of output axis connection, the connecting rod connects the piston, and the other end connects the output Axis, the connecting rod are located between two rotating discs；

The new type crank further includes a shaft coupling, and the shaft coupling is set to first bent axle body and second bent axle Between body, the shaft coupling includes a cylinder, and the both ends of the cylinder are respectively set a hole, first bent axle body and described the The output shaft of two bent axle bodies is individually fixed in the hole at the both ends of the cylinder, and a short slot is radially arranged in the barrel of the cylinder, It is provided through screw on the direction of the short slot；

The rotating disc includes ontology, balance weight and internal pin, and the ontology and the balance weight pass through the internal pin The bottom of connection, the ontology is dovetail shaped, and the balance weight top is equipped with the slot identical with the bottom dovetail shaped of the ontology.

Further, the internal pin is included in the location notch hole being had among the bottom and balance weight of ontology, Spring and positioning pin are housed in the location notch hole.

Further, the quantity of the screw is two.

Further, the other end of the output shaft is connected to transmission shaft.

Further, it is provided with encasement body outside first bent axle body and second bent axle body.

Further, the direction of the vertical short slot is provided with screw hole on the cylinder, and the screw is set to the spiral shell In hole.

The utility model has the advantages that：

First bent axle body of the new type crank, which is connected with the second bent axle body by the shaft coupling, to be driven, can be simultaneously Two bent axles are allowed to work, it is simple in structure.And use dovetail groove assembling structure and internal pin can to solve balance weight easy to fall off The problem of, use is safer.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it can also be obtained according to these attached drawings other attached drawings.

Fig. 1 is the structural schematic diagram for the new type crank that the utility model embodiment provides；

Fig. 2 is the partial cutaway schematic view for the first bent axle body that the utility model embodiment provides.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work Lower obtained all other embodiment, shall fall within the protection scope of the present invention.

Such as Fig. 1 and Fig. 2, the utility model embodiment provides a kind of new type crank, including the first bent axle body 1 and the second bent axle Body 2.First bent axle body 1 is identical with the structure of second bent axle body 2, all has an output shaft 12, a connecting rod 14, one is lived Plug 11 and two rotating discs being oppositely arranged, two rotating discs 13 of connection of the output shaft 12, the one of the connecting rod 14 End connects the piston 11, and the other end connects the output shaft 12, and the connecting rod 14 is located between two rotating discs 13.Institute The other end for stating output shaft 12 is connected to transmission shaft, the mechanism operating for driving outside need to be driven, such as cylinder etc..

Such as Fig. 1 and Fig. 2, the rotating disc 13 includes ontology 131, balance weight 132 and internal pin 133, the ontology 131 It is connected by the internal pin 133 with the balance weight 132, the bottom of the ontology 131 is dovetail shaped, the balance weight 132 Top is equipped with the slot identical with the bottom dovetail shaped of the ontology 131.The bottom of the ontology 131 is dovetail shaped, the balance 132 top of block is assembled with the identical slot of the bottom dovetail shaped of ontology 131 based on being interference fitted, and ensures ontology 1311 and balance Block 132 connects reliably, and internal pin 133 ensure that balance weight 132 is axial without play.Therefore, balance weight 132 from all directions all by It is fixed, it will not fall off again.

Such as Fig. 1 and Fig. 2, further, the internal pin 133 is included among the bottom and balance weight 132 of ontology 131 and divides The location notch hole 135 not being provided with is equipped with spring 136 and positioning pin 134 in the location notch hole 135.

Such as Fig. 1 and Fig. 2, the new type crank includes a shaft coupling 3, and the shaft coupling 3 is set to 1 He of the first bent axle body Between second bent axle body 2.The shaft coupling 3 includes a cylinder 31, and the shaft coupling 3 is made of stainless steel material.It is described The both ends of cylinder 31 are respectively set a hole 32, and the output shaft 12 of first bent axle body 1 and second bent axle body 2 is fixed respectively In in the hole 32 at the both ends of the cylinder 31, a short slot 33 is radially arranged in the barrel of the cylinder 31, perpendicular to the short slot 33 Direction on be provided through screw 34, by locking screw 34, can make that short slot 33 is closely sealed, clipping, to make described first The output shaft 12 of bent axle body 1 and second bent axle body 2 is fixed in the hole 32 of the cylinder 31, completes first bent axle body 1 and second bent axle body 2 linkage.

In the preferred embodiment, the quantity of the screw is two.The side of the vertical short slot 33 on the cylinder 31 To screw hole is provided with, the screw 34 is set in the screw hole.

Further, it is provided with encasement body outside first bent axle body 1 and second bent axle body 2.

In conclusion the first bent axle body 1 and the second bent axle body 2 of the new type crank by the shaft coupling 3 connect into Row transmission, can allow two bent axles to work simultaneously, simple in structure.And using dovetail groove assembling structure and internal pin can solve The caducous problem of balance weight, use are safer.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims

1. a kind of new type crank, which is characterized in that including the first bent axle body and the second bent axle body, first bent axle body and described The structure of second bent axle body is identical, all has an output shaft, a connecting rod, a piston and two rotating discs being oppositely arranged, institute Output two rotating discs of axis connection are stated, one end of the connecting rod connects the piston, and the other end connects the output shaft, institute Connecting rod is stated between two rotating discs；

The new type crank further includes a shaft coupling, the shaft coupling be set to first bent axle body and second bent axle body it Between, the shaft coupling includes a cylinder, and a hole, first bent axle body and second song is respectively set in the both ends of the cylinder The output shaft of axis body is individually fixed in the hole at the both ends of the cylinder, and a short slot is radially arranged in the barrel of the cylinder, vertically In being provided through screw on the direction of the short slot；

The rotating disc includes ontology, balance weight and internal pin, the ontology and the balance weight by the built-in pin connection, The bottom of the ontology is dovetail shaped, and the balance weight top is equipped with the slot identical with the bottom dovetail shaped of the ontology.

2. new type crank as described in claim 1, it is characterised in that：The internal pin is included in bottom and the balance weight of ontology The location notch hole that centre has is equipped with spring and positioning pin in the location notch hole.

3. new type crank as described in claim 1, it is characterised in that：The quantity of the screw is two.

4. new type crank as described in claim 1, it is characterised in that：The other end of the output shaft is connected to transmission shaft.

5. new type crank as described in claim 1, it is characterised in that：First bent axle body and the second bent axle body peripheral hardware It is equipped with cladding shell.

6. new type crank as described in claim 1, it is characterised in that：The direction of the vertical short slot is provided on the cylinder Screw hole, the screw are set in the screw hole.