CN208281427U - The balance shaft of three-cylinder engine - Google Patents
The balance shaft of three-cylinder engine Download PDFInfo
- Publication number
- CN208281427U CN208281427U CN201820625487.6U CN201820625487U CN208281427U CN 208281427 U CN208281427 U CN 208281427U CN 201820625487 U CN201820625487 U CN 201820625487U CN 208281427 U CN208281427 U CN 208281427U
- Authority
- CN
- China
- Prior art keywords
- eccentric segment
- rear end
- balance shaft
- reinforcing rib
- cylinder engine
- 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.)
- Active
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of balance shafts of three-cylinder engine, including front end, rear end, the balance weight connecting with rear end and the middle interconnecting piece between front end and rear end, the middle interconnecting piece includes the first eccentric segment connecting with the front end, the second eccentric segment connecting with the rear end, the linkage section connecting between the first eccentric segment and the second eccentric segment and with the first eccentric segment and the second eccentric segment, the first reinforcing rib connecting with front end and the first eccentric segment and the second reinforcing rib connecting with rear end and the second eccentric segment.The balance shaft of the utility model three-cylinder engine can mitigate the overall weight of balance shaft under the premise of guaranteeing structural strength, help to realize the lightweight of engine.
Description
Technical field
The utility model belongs to technical field of engines, specifically, the utility model relates to a kind of three-cylinder engines
Balance shaft.
Background technique
Balance shaft on available engine is relatively simple club shaped structure, and the balance shaft of this structure is difficult to take into account intensity
And weight.Although existing balance shaft intensity is high, weight is larger, has larger shadow to the weight of cost and engine complete machine
It rings.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
For a kind of balance shaft of three-cylinder engine, it is therefore an objective under the premise of guaranteeing structural strength, mitigate balance shaft weight, realization is started
Machine lightweight.
To achieve the goals above, the technical solution that the utility model is taken are as follows: the balance shaft of three-cylinder engine, including it is preceding
End, rear end, the balance weight being connect with rear end and the middle interconnecting piece between front end and rear end, it is described in
Between interconnecting piece include the first eccentric segment being connect with the front end, the second eccentric segment connecting with the rear end, be located at the
The linkage section being connect between one eccentric segment and the second eccentric segment and with the first eccentric segment and the second eccentric segment and front end and first
First reinforcing rib of eccentric segment connection and the second reinforcing rib being connect with rear end and the second eccentric segment.
First reinforcing rib is connect with the linkage section and second eccentric segment, and the first reinforcing rib is from the front end
Place starts to extend at the second eccentric segment.
Second reinforcing rib is connect with the linkage section and first eccentric segment, and the second reinforcing rib is from the rear end
Place starts to extend at the first eccentric segment.
The rear end has the thrust groove for allowing the spacer pin for being limited in the axial direction to balance shaft to be inserted into, thrust
Slot is on the periphery of rear end along the annular groove entirely circumferentially extended.
For tool there are two opposite thrust surface, thrust surface is the plane with the axis perpendicular of balance shaft in the thrust groove,
The spacer pin has two confined planes being bonded with thrust surface, and two confined planes are parallel.
The balance shaft of the utility model three-cylinder engine can mitigate balance shaft under the premise of guaranteeing structural strength
Overall weight helps to realize the lightweight of engine.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram of the balance shaft of the utility model three-cylinder engine；
Fig. 2 is the assembling schematic diagram of balance shaft and gear；
Fig. 3 is the side view of structure shown in Fig. 2；
Fig. 4 is the structural schematic diagram of spacer pin；
In the figure, it is marked as 1, gear；2, spacer pin；201, the first shaft part；202, the second shaft part；203, confined planes；204,
Guide section；3, thrust surface；4, balance weight；5, thrust groove；6, the first eccentric segment；7, the second eccentric segment；8, linkage section；9, first
Reinforcing rib；10, the second reinforcing rib；11, front support axle journal；12, rear end supports axle journal；13, gear mounting shaft neck.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation, it is therefore an objective to help those skilled in the art to the design of the utility model, technical solution have it is more complete, accurate and
Deep understanding, and facilitate its implementation.
As shown in Figure 1, the utility model provides a kind of balance shaft of three-cylinder engine, including front end, rear end, with
The balance weight and the middle interconnecting piece between front end and rear end, middle interconnecting piece of rear end connection include and front end
First eccentric segment 6 of portion's connection, the second eccentric segment 7 being connect with rear end, positioned at the first eccentric segment 6 and the second eccentric segment 7 it
Between and connect with the first eccentric segment 6 and the second eccentric segment 7 linkage section 8, connect with front end and the first eccentric segment 6 first plus
Strengthening tendons 9 and the second reinforcing rib 10 being connect with rear end and the second eccentric segment 7.
Specifically, as shown in Figure 1, the first eccentric segment 6 and the second eccentric segment 7 can serve as the effect of balance weight, when flat
When the axis that weighs rotates, moment of inertia caused by these eccentric segments can offset the unbalance inertia force square of engine, reduce its axis
To and radial occupied space, and the overall weight of balance shaft can be mitigated.In the axial direction of balance shaft, linkage section 8 is located at inclined
Between heart section and the second eccentric segment 7, one end of linkage section 8 is fixedly connected with the first eccentric segment 6, the other end of linkage section 8 and
Two eccentric segments 7 are fixedly connected.First reinforcing rib 9 is connect with linkage section 8 and the second eccentric segment 7, and the first reinforcing rib 9 is from front end
Start to extend at the second eccentric segment 7, the second reinforcing rib 10 is connect with linkage section 8 and the first eccentric segment 6, the second reinforcing rib 10 from
Start to extend at the first eccentric segment 6 at rear end.First eccentric segment 6 and the second reinforcing rib 10 are in the axis with balance shaft
On parallel same straight line, the second eccentric segment 7 and the first reinforcing rib 9 are in the same straight line parallel with the axis of balance shaft
On, the first reinforcing rib 9 and the second reinforcing rib 10 be in on the same straight line of the axis perpendicular of balance shaft, linkage section 8 and position
Between the first reinforcing rib 9 and the second reinforcing rib 10.First reinforcing rib 9 and the second reinforcing rib 10 are strip structure, and first reinforces
The setting of muscle 9 and the second reinforcing rib 10, ensure that the structural strength of balance shaft.
As shown in Figure 1, the first eccentric segment 6 is identical with the length scale of the second eccentric segment 7, the first eccentric segment 6 and second is inclined
The width size of heart section 7 is identical, and the length direction of the first eccentric segment 6 and the second eccentric segment 7 is parallel with the axis of balance shaft, the
The axis perpendicular of the width direction and balance shaft of one eccentric segment 6 and the second eccentric segment 7, the length of the first reinforcing rib 9 are greater than the
The length of one eccentric segment 6, the length of the second reinforcing rib 10 are greater than the length of the second eccentric segment 7, and the first reinforcing rib 9 is inclined first
Middle position in the width direction of heart section 6 is fixedly connected with the first eccentric segment 6, and the second reinforcing rib 10 is in the second eccentric segment
Middle position in 7 width direction is fixedly connected with the second eccentric segment 7.
As shown in Figure 1, front end has a front support axle journal 11, it is used to that bearing be installed at front support axle journal 11.
There is a rear end to support axle journal 12 for rear end, be used to install bearing at rear end support axle journal 12.Front support axle journal 11 is with after
It is coaxial arrangement that end, which supports axle journal, and middle interconnecting piece is located between front support axle journal 11 and rear end support axle journal.
As depicted in figs. 1 and 2, rear end have a gear mounting shaft neck 13 and allow in the axial direction to balance shaft into
The thrust groove 5 of the spacer pin insertion of row limit, thrust groove 5 are recessed along the annular entirely circumferentially extended on the periphery of rear end
Slot, spacer pin 2 are set on the cylinder body of three-cylinder engine.For installing gear 1 at gear mounting shaft neck 13, gear 1 is for connecing
The power from crankshaft is received, so that driving wheel rotates.Balance weight is fixedly connected with gear mounting shaft neck 13, in the axis of balance shaft
Upwards, balance weight, gear mounting shaft neck 13, thrust groove and rear end support axle journal 12 are to set gradually, 13 He of gear mounting shaft neck
Rear end supports axle journal and to be coaxially disposed.
As depicted in figs. 1 and 2, thrust groove 5 is on the periphery of balance shaft along the annular groove entirely circumferentially extended, really
It protects in balance shaft rotation, the state that spacer pin 2 can always in insertion thrust groove 5, limiting slot and thrust groove 5 match
The position limiting structure of formation, it can be ensured that the axial position of balance shaft is accurate, and structure is simple, at low cost, high reliablity.
As shown in Figures 2 and 3, the axial direction of the length direction of spacer pin 2 and balance shaft is spatially perpendicular, spacer pin 2
Length be greater than balance shaft diameter, the both ends of spacer pin 2 are stretched out from thrust groove 5.The cylinder body of three-cylinder engine is to spacer pin 2
Support is provided, cylinder body is equipped with the mounting hole for allowing spacer pin 2 to be inserted into, and mounting hole is arranged two, and the both ends of spacer pin 2 are inserted into respectively
In one mounting hole, realizes and fix.
As shown in Figures 2 and 3, thrust groove 5 is U-lag, and there are two opposite thrust surface 3, thrust surfaces 3 for tool in thrust groove 5
Plane and thrust surface 3 for the axis perpendicular with balance shaft are annular plane, and two thrust surfaces 3 are parallel, two thrusts
Face 3 is two opposite inner walls in thrust groove 5, and spacer pin 2 is located between two thrust surfaces 3, and spacer pin 2 has and stops
Two confined planes 203 that pushing surface 3 is bonded, two confined planes 203 are parallel and two confined planes 203 are to be arranged symmetrically, spacer pin 2
Axis be located at the middle positions of two confined planes 203.Two confined planes 203 on spacer pin 2 are pasted with a thrust surface 3 respectively
It closes, i.e., by plane contact between spacer pin 2 and balance shaft, to carry out axial limiting, accurate positioning, reliability to balance shaft
It is high.
As shown in Figures 2 to 4, spacer pin 2 includes the first shaft part 201 set gradually along axial direction, the second shaft part 202 and leads
To section 204, the first shaft part 201 and the second shaft part 202 are cylindrical body, the first shaft part 201 and the second shaft part 202 be coaxial arrangement and
The diameter of first shaft part 201 is greater than the diameter of the second shaft part 202, and confined planes 203 are set on the first shaft part 201, confined planes 203
For a part of the outer surface of the first shaft part 201, the length of the first shaft part 201 is greater than the length of the second shaft part 202, the first shaft part
In 201 insertion thrust grooves 5.The diameter of second shaft part 202 be less than thrust groove 5 width (namely between two thrust surfaces 3 hang down
Straight distance), the one end of the first shaft part 201 is fixedly connected with the second shaft part 202, and confined planes 203 are being somebody's turn to do from the first shaft part 201
End starts to axially extend to setting position.Second shaft part 202 is located between guide section 204 and the first shaft part 201, the
One end of two shaft parts 202 is fixedly connected with the first shaft part 201, and the other end of the second shaft part 202 is fixedly connected with guide section 204.
Guide section 204 is truncated cone structure, guide section 204 and the first shaft part 201 and the second shaft part 202 is coaxial arrangement, guide section
204 have a bigger diameter end and a miner diameter end, and the diameter of the bigger diameter end of guide section 204 is greater than the diameter of miner diameter end, guide section
The diameter of 204 miner diameter end be greater than zero, the diameter of the bigger diameter end of guide section 204 it is identical as the diameter of the second shaft part 202 and
The bigger diameter end of guide section 204 is fixedly connected with the second shaft part 202.When installing spacer pin 2, by the guidance of guide section 204, just
It is inserted into the mounting hole on cylinder body after spacer pin 2 passes through thrust groove 5, facilitates the installation of spacer pin 2.
The utility model is exemplarily described in conjunction with attached drawing above.Obviously, the utility model implements not
It is limited by aforesaid way.As long as the various unsubstantialities that the method concept and technical solution that use the utility model carry out
Improvement；Or it is not improved, the above-mentioned conception and technical scheme of the utility model are directly applied into other occasions, at this
Within the protection scope of utility model.
Claims (5)
1. the balance shaft of three-cylinder engine including front end, rear end, the balance weight connecting with rear end and is located at front end
Middle interconnecting piece between rear end, it is characterised in that: the middle interconnecting piece includes first connect with the front end
Eccentric segment, the second eccentric segment being connect with the rear end, between the first eccentric segment and the second eccentric segment and with first partially
Linkage section, the first reinforcing rib for being connect with front end and the first eccentric segment and and the rear end of heart section and the connection of the second eccentric segment
The second reinforcing rib connected with the second eccentric segment.
2. the balance shaft of three-cylinder engine according to claim 1, it is characterised in that: first reinforcing rib and the company
It connects section to connect with second eccentric segment, the first reinforcing rib is extended to since the front end from the second eccentric segment.
3. the balance shaft of three-cylinder engine according to claim 2, it is characterised in that: second reinforcing rib and the company
Section is connect to connect with first eccentric segment, the second reinforcing rib from the rear end extend at the first eccentric segment.
4. the balance shaft of three-cylinder engine according to any one of claims 1 to 3, it is characterised in that: the rear end has
The thrust groove for allowing the spacer pin for being limited in the axial direction to balance shaft to be inserted into, thrust groove are on the periphery of rear end
Along the annular groove entirely circumferentially extended.
5. the balance shaft of three-cylinder engine according to claim 4, it is characterised in that: there are two phases for tool in the thrust groove
Pair thrust surface, thrust surface is plane with the axis perpendicular of balance shaft, and the spacer pin has two be bonded with thrust surface
A confined planes, two confined planes are parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625487.6U CN208281427U (en) | 2018-04-28 | 2018-04-28 | The balance shaft of three-cylinder engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625487.6U CN208281427U (en) | 2018-04-28 | 2018-04-28 | The balance shaft of three-cylinder engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281427U true CN208281427U (en) | 2018-12-25 |
Family
ID=64752496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820625487.6U Active CN208281427U (en) | 2018-04-28 | 2018-04-28 | The balance shaft of three-cylinder engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208281427U (en) |
-
2018
- 2018-04-28 CN CN201820625487.6U patent/CN208281427U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204030853U (en) | A kind of flywheel of translator rotating shaft | |
| CN208281427U (en) | The balance shaft of three-cylinder engine | |
| CN208360299U (en) | Slewing journal structure | |
| CN104989601A (en) | Main bearing assembly of wind generating set | |
| CN208185343U (en) | The balance shaft and front end counterweight connecting structure of three-cylinder engine | |
| CN208203910U (en) | The balance shaft position limiting structure of three-cylinder engine | |
| CN206283375U (en) | A kind of machine shaft | |
| CN205970845U (en) | Transmission structure of formula car for college students | |
| CN215058998U (en) | High-performance transmission shaft assembly | |
| CN109139797A (en) | A kind of three cylinder gasoline engine balance shaft mechanisms | |
| CN207005109U (en) | A kind of new easy-to-mount shaft coupling | |
| CN211174250U (en) | High stable camshaft | |
| CN105799479A (en) | Transmission structure of formula student competition car | |
| CN205559518U (en) | Crank shaft for automobile engine | |
| CN209115554U (en) | A kind of interior star-wheel of high lubricating effect | |
| CN212055570U (en) | New forms of energy motorcycle type transmission shaft structure | |
| CN205751851U (en) | Solenoid kludge streamline wire-packing mechanism | |
| CN210461536U (en) | Assembly structure of crankshaft and balance shaft | |
| CN208153528U (en) | The crankshaft group of three-cylinder engine | |
| CN211230616U (en) | Engine front end multi-groove belt pulley power output structure | |
| CN215292991U (en) | Water pump shaft connecting bearing for automobile engine | |
| CN215334043U (en) | Constant velocity universal joint structure of automobile driving shaft assembly | |
| CN219180101U (en) | Simulation transmission shaft | |
| CN203146562U (en) | Motor rotating shaft | |
| CN213425947U (en) | Magnetor mounting structure of extended range gasoline engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |