CN208348277U - A kind of dynamically balanced crankshaft - Google Patents
A kind of dynamically balanced crankshaft Download PDFInfo
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- CN208348277U CN208348277U CN201820721219.4U CN201820721219U CN208348277U CN 208348277 U CN208348277 U CN 208348277U CN 201820721219 U CN201820721219 U CN 201820721219U CN 208348277 U CN208348277 U CN 208348277U
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- balance weight
- crank arm
- arm
- dynamically balanced
- plug
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Abstract
A kind of dynamically balanced crankshaft described herein, the input side and outlet side formed including front (1) and tail end (2), crank arm (3) are equipped between front (1) and tail end (2), crank arm (3) is equipped with trunnion (4), wherein, it has been fixedly attached on the end of the crank arm (3) for adjusting integrally-built balance weight (5), crank arm (3) showing ellipsoidal structure, balance weight (5) U-shaped structure；The running stability of mechanical structure built-in system is simply greatly improved with overall structure, failure in service can be greatly reduced, and inspect periodically the balance weight weight in crankshaft, different balance weights can be set the use state of crankshaft is adjusted, the wide effect of use scope.
Description
Technical field
This application involves the dynamic balance field of crankshaft, specially a kind of dynamically balanced crankshaft.
Background technique
In the prior art:
Such as: Chinese Patent Application No. CN200920306715.4；The utility model relates to a kind of crankshaft anti-collision dynamic balancing
Device comprising equivalent ring upper body, equivalent ring lower body, equivalent ring upper body and equivalent ring lower body one end are cut with scissors by cylindrical pin with external thread
It connects, the other end is connected by lifting bolt with nut, forms circular hollow equivalent ring, equivalent ring upper body two sides are fixed with semi-circular
Upper clamp plate, equivalent ring lower body two sides are fixed with semi-circular lower clamp plate, and upper clamp plate, the shape of lower clamp plate inner arcuate surface and crankshaft are heavy to be cut
Slot or crankshaft fillet coincide, and the upper clamp plate, lower clamp plate of equivalent ring the same side form circular hollow clamping plate ring, radial clamping crankshaft
Undercut groove or fillet position.The utility model is structurally reasonable, easy to assembly, and clamping plate ring clamps the equivalent ring formation one after crankshaft
Hollow cavity, does not contact with rod journal, avoids axle journal scar, and it is suitable for various axis class dynamic balancing.
In above-mentioned application, a kind of dynamic balance structure of crankshaft is given, but during use, because structure is complicated
Stablizing for system is lower.
In consideration of it, how to design a kind of dynamically balanced crankshaft, the defect in the presence of the above-mentioned prior art is overcome, be this
Field technical staff technical problem urgently to be resolved.
Summary of the invention
The application's aims to overcome that the technical problems existing in the prior art, and provides a kind of dynamically balanced crankshaft.
The purpose of the application is completed by following technical solution, a kind of dynamically balanced crankshaft, including front and tail
The input side and outlet side formed is held, crank arm is equipped between front and tail end, crank arm is equipped with trunnion, wherein described
It has been fixedly attached on the end of crank arm for adjusting integrally-built balance weight, crank arm showing ellipsoidal structure, balance weight is in U
Type structure.
The balance weight is socketed on the end of crank arm, and fastening bolt is plugged in balance weight, and balance weight passes through fastening bolt
It is fixedly connected on crank arm.
The crank arm includes the arm block of oval laminated structure, and the arm end of arm block end is arc-shaped structure, arm block
The wall edge of two sides the smooth transition in two sides end form oval side.
Balance weight is socketed on the arm end, the first balance end and the second balance end of balance weight two sides are fitted in arm end
The clamping kerve of two sides, balance weight middle position is fitted on arm end surfaces.
Location hole i.e. first positioning hole, second are determined there are three setting on the left and right sides position of the balance weight and middle position
Position hole, third location hole.
The first positioning hole, second location hole, fixing grafting in third location hole respectively, there are three plug i.e. first to insert
Bolt, the second plug, third plug.
First plug, the second plug, third plug are hexagon socket head cap screw.
The application compared with prior art, at least has following obvious advantage and effect:
1, overall structure simply greatly improves the running stability of mechanical structure built-in system, can be great
Failure in service is reduced, and inspects periodically the balance weight weight in crankshaft, different balance weights, which can be set, makes crankshaft
It is adjusted with state, use scope is wide.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the overall schematic of crankshaft in the application.
Fig. 2 is the installation diagram of balance weight in the application.
Fig. 3 is the structure principle chart of balance weight in the application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
A kind of dynamically balanced crankshaft described herein, input side and outlet side including front 1 and the formation of tail end 2,
Crank arm 3 is equipped between front 1 and tail end 2, crank arm 3 is equipped with trunnion 4, wherein fixed on the end of the crank arm 3
It is socketed with for adjusting integrally-built balance weight 5,3 showing ellipsoidal structure of crank arm, the U-shaped structure of balance weight 5；With entirety
Structure simply greatly improves the running stability of mechanical structure built-in system, and the event in use can be greatly reduced
Barrier, and the balance weight weight in crankshaft is inspected periodically, different balance weights can be set, the use state of crankshaft is adjusted,
The wide effect of use scope.
In the embodiment of the present application,
Referring to shown in Fig. 1 to Fig. 3,
According to crankshaft state in the prior art, the as far as possible structure on reduction crankshaft, pass through simple balance weight set
The principle connect realizes the adjusting to dynamic equilibrium state on crankshaft, and can be according to the use state of crankshaft, can be to the big of balance weight
Small and weight is polished, and then realizes stable counterbalance effect.
A kind of dynamically balanced crankshaft, including input side and outlet side that front 1 and tail end 2 are formed, front 1 and tail end 2 it
Between be equipped with crank arm 3, crank arm 3 be equipped with trunnion 4, wherein be fixedly attached on the end of the crank arm 3 for adjusting
Integrally-built balance weight 5,3 showing ellipsoidal structure of crank arm, the U-shaped structure of balance weight 5.
Ellipsoidal structure is applied, is easy to calculate the machine performance and runnability of crank arm 3, and balance weight 5
Socket structure relatively stable can carry out socket installation between crank arm 3, and positioning is more accurately not susceptible to deviate.
The balance weight 5 is socketed on the end of crank arm 3, position along end relatively stable, and will not be occurred
The offset of position, it is more accurate to position.
It is plugged with fastening bolt in balance weight 5, is attached by the way of fastening bolt, bolt or interior hexagonal can be used
Bolt or dormant bolt, less structure has lower mechanical dry related to sex, and using light alloy bolt, intensity is high and does not influence
Integrally-built weight.
Balance weight 5 is fixedly connected on crank arm 3 by fastening bolt.Be fixed using bolt, be convenient for installation with
Replacement, machinery replaceability with higher.
The crank arm 3 includes the arm block 31 of oval laminated structure, using ellipsoidal structure, in the mistake of processing and manufacturing
Cheng Zhong, Numeric Control Technology easy to use are produced, convenient for design and the later period using when be also easy to balance weight 5 and positioned.
The arm end 32 of 31 end of arm block is arc-shaped structure, and the end of ellipsoidal structure is arc-shaped, arc-shaped structure
It is beneficial to the design of 5 installation site of balance weight, the clamping kerve 57 inside balance weight 5 is designed as arc-shaped slot convenient for peace
Dress, and it is easy to process.
The wall side 33 of 31 two sides of arm block forms oval side along the smooth transition in two sides end, arc-shaped side be convenient for
Smooth installation and connection are carried out between wall side 33, stickiness is stronger, high stability.
It is socketed with balance weight 5 on the arm end 32, is fixed by the way of socket.
The first balance end 51 and the second balance end 52 of 5 two sides of balance weight are fitted in the two sides at arm end 32,5 two sides of balance weight
The smooth transition in the two sidewalls at balance end and arm end 32 is installed, and the mounting structure of contact fitting, integrally formed mechanical knot are formed
Structure is more firm.
The clamping kerve 57 in 5 middle position of balance weight is fitted on 32 surface of arm end.Further to guarantee the steady of installation
Solidity is installed and is connected by the way of fitting, has stronger fitting effect.
Set that there are three location hole i.e. first positioning holes 54, the on the left and right sides position and middle position of the balance weight 5
Two location holes 55, third location hole 56.Wherein, the location hole in middle position is arranged on the long axis of ellipse, is further
Guarantee the stability of symmetry and installation, therefore the location hole that the left and right sides is arranged symmetrically is installed and positioning.Wherein, first is fixed
Position hole 54, second location hole 55 are along symmetrically installation and the positioning of third location hole 56.
The first positioning hole 54, second location hole 55 fix grafting in third location hole 56 there are three plug respectively and are
First plug 61, the second plug 62, third plug 63.
It in the installation of three plugs, is installed along three location holes, not only registration, and symmetry after grafting
It is relatively strong, convenient for the realization of system-computed, in subsequent process, it is adjusted convenient for the weight to balance weight 5.
First plug 61, the second plug 62, third plug 63 are hexagon socket head cap screw.
Wherein, using hexagon socket head cap screw or dormant bolt can also be used, has lower mechanical dry related to sex.Sufficiently
Reduction structure to the occupancy in space.
The above description is only an example of the present application, moreover, the title that components are taken in the application can not also
Together, the title being not intended to limit in the application.To those skilled in the art, various changes and changes are possible in this application.
All any modification, equivalent replacement, improvement and so within the design and principle of the application, should be included in the power of the application
Within sharp claimed range.
Claims (7)
1. a kind of dynamically balanced crankshaft, including input side and outlet side that front (1) and tail end (2) is formed, front (1) and tail end
(2) crank arm (3) are equipped between, crank arm (3) is equipped with trunnion (4), it is characterised in that: the end of the crank arm (3)
On be fixedly attached for adjusting integrally-built balance weight (5), crank arm (3) showing ellipsoidal structure, balance weight (5) is U-shaped
Structure.
2. dynamically balanced crankshaft according to claim 1, it is characterised in that: the balance weight (5) is socketed in crank arm (3)
On end, fastening bolt is plugged in balance weight (5), balance weight (5) is fixedly connected on crank arm (3) by fastening bolt.
3. dynamically balanced crankshaft according to claim 1 or claim 2, it is characterised in that: the crank arm (3) includes oval
The arm block (31) of shape structure, the arm end (32) of arm block (31) end are arc-shaped structure, wall side (33) edge of arm block (31) two sides
The smooth transition in two sides end form oval side.
4. dynamically balanced crankshaft according to claim 3, it is characterised in that: balance weight (5) are socketed on the arm end (32),
First balance end (51) of balance weight (5) two sides and the second balance end (52) are fitted in the two sides of arm end (32), in balance weight (5)
Between the clamping kerve (57) of position be fitted on arm end (32) surface.
5. dynamically balanced crankshaft according to claim 1, it is characterised in that: the left and right sides position of the balance weight (5) and
Location hole i.e. first positioning hole (54), second location hole (55), third location hole (56) there are three being set on middle position.
6. dynamically balanced crankshaft according to claim 5, it is characterised in that: the first positioning hole (54), second location hole
(55), there are three i.e. the first plug of plug (61), the second plug (62), thirds to insert for fixed grafting respectively in third location hole (56)
Bolt (63).
7. dynamically balanced crankshaft according to claim 6, it is characterised in that: first plug (61), the second plug (62),
Third plug (63) is hexagon socket head cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820721219.4U CN208348277U (en) | 2018-05-15 | 2018-05-15 | A kind of dynamically balanced crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820721219.4U CN208348277U (en) | 2018-05-15 | 2018-05-15 | A kind of dynamically balanced crankshaft |
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| Publication Number | Publication Date |
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| CN208348277U true CN208348277U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820721219.4U Active CN208348277U (en) | 2018-05-15 | 2018-05-15 | A kind of dynamically balanced crankshaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682416A (en) * | 2020-11-26 | 2021-04-20 | 北京中清能发动机技术有限公司 | Round slide block group, balance bar, round slide block and compressor of crank round slide block mechanism |
-
2018
- 2018-05-15 CN CN201820721219.4U patent/CN208348277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682416A (en) * | 2020-11-26 | 2021-04-20 | 北京中清能发动机技术有限公司 | Round slide block group, balance bar, round slide block and compressor of crank round slide block mechanism |
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