CN206129861U - Bent axle - Google Patents
Bent axle Download PDFInfo
- Publication number
- CN206129861U CN206129861U CN201620958127.9U CN201620958127U CN206129861U CN 206129861 U CN206129861 U CN 206129861U CN 201620958127 U CN201620958127 U CN 201620958127U CN 206129861 U CN206129861 U CN 206129861U
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- CN
- China
- Prior art keywords
- crank
- trunnion
- bent axle
- balance
- balanced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a bent axle, including trunnion and rod journal, through crank connection between adjacent rod journal and the trunnion, the crank keep away from adjacent rod journal one side install balanced heavy, one of them crank A disc -shaped, this crank is the installation crank, installs the ring gear on the installation crank, be the balanced crank with the crank of installation crank connection on same trunnion, the balanced heavy quality on the balanced crank is less than the balanced quality that weighs that sets up on other cranks, installation articulate barycenter be a for the offset of main shaft axis of the neck line, and balanced heavy barycenter on the balanced crank is b, wherein equal, the opposite direction of an and b's numerical value for the offset of main shaft axis of the neck line. The utility model discloses an it is heavy to set up a little balance on adjacent crank, compensates the amount of unbalance that discoid crank produced, makes little balanced heavy and discoid crank combined action, and bent axle's dynamic balance is guaranteed in the center that makes bent axle on the axis.
Description
Technical field
This utility model is related to a kind of bent axle, more particularly to a kind of bent axle for being provided with two-stage balance mechanism.
Background technology
In-line arrangement four-cylinder diesel engine is little due to overall dimensions, and with significantly matching advantage, application is more and more extensive.But
As the construction featuress of its own, two in this kind of diesel engine grade reciprocal inertia force are overlapped mutually in four cylinders, cause array
The low-frequency vibration of formula four-cylinder diesel engine, the application to this kind of diesel engine are adversely affected.At present to solve foregoing problems, typically
Install two-stage balance mechanism on this kind of diesel engine additional to reduce the vibration caused by two grades of reciprocal inertia forces.
For the in-line four cylinder machine crankshaft for installing two-stage balance mechanism, the crank arm of crankshaft installed two-stage balance mechanism gear ring
Disc-shaped structure need to be designed as, while this disc-shaped structure is machined, for installing two-stage balance mechanism gear ring.Discoid song
Shaft arm and crank arm machining, can destroy the dynamic balancing of bent axle.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of bent axle of good dynamic balance.
To solve above-mentioned technical problem, this utility model includes spaced multiple trunnions and rod journal, adjacent
Rod journal and trunnion between connected by crank, the crank is being provided with balance away from adjacent rod journal side
Weight, which is structurally characterized in that wherein a crank is in the form of annular discs, and this crank is installed and be provided with gear ring on crank, with peace to install crank
The crank being connected on same trunnion that cranks is balance crank, and the quality of the balance weight on balance crank is less than other cranks
The quality of the balance weight of upper setting；The barycenter for installing crank is a relative to the side-play amount of trunnion axis, is balanced flat on crank
The barycenter of weight is b relative to the side-play amount of trunnion axis, and the numerical value of wherein a and b is equal, in opposite direction.
The crank of installing is arranged near the rear end of bent axle.
The quantity of the trunnion is 5, and the quantity of the rod journal is four.
The installation crank is arranged on the 4th trunnion, and is arranged in the rear end of this trunnion；Positioned at this trunnion
Quality of the quality of the balance weight on the balance crank of front end less than the balance weight arranged on other cranks.
The installation crank is arranged on the 4th trunnion, and is arranged in the front end of this trunnion；Positioned at this trunnion
Quality of the quality of the balance weight on the balance crank of rear end less than the balance weight arranged on other cranks.
The crank is structure as a whole with the balance weight being arranged on crank.
After using said structure, for the bent axle for being provided with two-stage balance mechanism, this utility model is by adjacent song
One little balance weight is set on handle, is compensated the amount of unbalance that discoid crank is produced, little balance weight is made with discoid crank
Collective effect, makes the center of bent axle on axis, it is ensured that the dynamic balancing of bent axle.This utility model simple structure, it is easy to assembly, it is raw
Produce low cost.
Description of the drawings
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to this utility model：
Fig. 1 is the structural representation of the first embodiment of this utility model；
Structural representations of the Fig. 2 for second embodiment of this utility model.
Specific embodiment
Bent axle includes spaced multiple trunnions 1 and rod journal 2, as shown in figure 1, trunnion in the present embodiment
Quantity is 5, the quantity of rod journal is four, it is adaptable to four-cylinder diesel engine.Lead between adjacent rod journal and trunnion
Crank connection is crossed, crank is being provided with balance weight, crank and the balance being arranged on crank away from adjacent rod journal side
It is structure as a whole again.Wherein a crank is in the form of annular discs, and this crank is installed crank 3 and set near the rear end of bent axle to install crank 3
Put, crank 3 is installed in the present embodiment and is arranged on the 4th trunnion, and arrange in the rear end of this trunnion, install on crank 3
Gear ring 6 being installed, the crank on same trunnion being connected to balance crank 4 with crank is installed, balance crank 4 is located at this main shaft
Throat end, balances the quality of the quality less than the balance weight arranged on other cranks of the balance weight 5 on crank 4；Crank is installed
Barycenter is a relative to the side-play amount of trunnion axis, and the barycenter of the balance weight on balance crank is relative to the inclined of trunnion axis
Shifting amount is b, and the numerical value of wherein a and b is equal, in opposite direction, and as shown in the drawings, the barycenter for installing crank is located at trunnion axis
Lower section, the barycenter of balance weight are located at the top of trunnion axis, and both barycenter are equal with the distance between trunnion axis.
Individually discoid crank can destroy shafting balancing form, cause shafting barycenter off-axis, balance bent in this utility model
The little quality acting as in discoid crank equivalent mass opposite direction arrangement similar effects of balance weight on handle, it is ensured that this balance weight
With discoid crank collective effect so that bent axle center of gravity is on axis.
As shown in Fig. 2 the present embodiment is to install crank 3 to be arranged on the 4th main shaft with the difference of previous embodiment
The front end of neck, balance crank 4 are arranged in the rear end of this trunnion.And the barycenter of crank is installed above trunnion axis, put down
The barycenter of weight is located at the lower section of trunnion axis, and both barycenter are equal with the distance between trunnion axis.
For the bent axle for being provided with two-stage balance mechanism, this utility model is little by one is arranged on adjacent crank
Balance weight, compensates the amount of unbalance that discoid crank is produced, makes little balance weight and discoid crank collective effect, make bent axle
Center is on axis, it is ensured that the dynamic balancing of bent axle.This utility model simple structure, easy to assembly, low production cost.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to.Previous embodiment
This utility model is described in detail, for a person skilled in the art, which still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic.In every case it is new in this practicality
Within the scope of the inventive concept of type, any modification, equivalent substitution and improvements done etc. are all contained in protection of the present utility model
Within the scope of.
Claims (6)
1. a kind of bent axle, including spaced multiple trunnions and rod journal, between adjacent rod journal and trunnion
Connected by crank, the crank is being provided with balance weight away from adjacent rod journal side, it is characterized in that a wherein crank
In the form of annular discs, this crank is installed and be provided with gear ring on crank to install crank, is connected on same trunnion with crank is installed
Crank is balance crank, balances the quality of the quality less than the balance weight arranged on other cranks of the balance weight on crank；Install
The barycenter of crank is a relative to the side-play amount of trunnion axis, and the barycenter of the balance weight on balance crank is relative to trunnion axle
The side-play amount of line is b, and the numerical value of wherein a and b is equal, in opposite direction.
2. bent axle according to claim 1, is characterized in that the crank of installing is arranged near the rear end of bent axle.
3. bent axle according to claim 1, is characterized in that the quantity of the trunnion is 5, the number of the rod journal
Measure as four.
4. bent axle according to claim 3, is characterized in that the installation crank is arranged on the 4th trunnion, and arranges
In the rear end of this trunnion；The quality of the balance weight on the balance crank of this trunnion front end is less than on other cranks and arranges
Balance weight quality.
5. bent axle according to claim 3, is characterized in that the installation crank is arranged on the 4th trunnion, and arranges
In the front end of this trunnion；The quality of the balance weight on the balance crank of this trunnion rear end is less than on other cranks and arranges
Balance weight quality.
6. bent axle according to any one of claim 1 to 5, is characterized in that the crank and the balance being arranged on crank
It is structure as a whole again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958127.9U CN206129861U (en) | 2016-08-29 | 2016-08-29 | Bent axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958127.9U CN206129861U (en) | 2016-08-29 | 2016-08-29 | Bent axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129861U true CN206129861U (en) | 2017-04-26 |
Family
ID=58566204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620958127.9U Active CN206129861U (en) | 2016-08-29 | 2016-08-29 | Bent axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129861U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360215A (en) * | 2018-04-09 | 2019-10-22 | 通用汽车环球科技运作有限责任公司 | Crankshaft and its balance method |
| CN112065843A (en) * | 2020-08-28 | 2020-12-11 | 东风商用车有限公司 | Crankshaft with crank arm heat sleeved with gear |
| CN112639306A (en) * | 2018-10-16 | 2021-04-09 | 宝马股份公司 | Crankshaft |
-
2016
- 2016-08-29 CN CN201620958127.9U patent/CN206129861U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360215A (en) * | 2018-04-09 | 2019-10-22 | 通用汽车环球科技运作有限责任公司 | Crankshaft and its balance method |
| CN112639306A (en) * | 2018-10-16 | 2021-04-09 | 宝马股份公司 | Crankshaft |
| CN112065843A (en) * | 2020-08-28 | 2020-12-11 | 东风商用车有限公司 | Crankshaft with crank arm heat sleeved with gear |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |