CN2911319Y - Balance shaft of single cylinder engine - Google Patents
Balance shaft of single cylinder engine Download PDFInfo
- Publication number
- CN2911319Y CN2911319Y CN 200620082912 CN200620082912U CN2911319Y CN 2911319 Y CN2911319 Y CN 2911319Y CN 200620082912 CN200620082912 CN 200620082912 CN 200620082912 U CN200620082912 U CN 200620082912U CN 2911319 Y CN2911319 Y CN 2911319Y
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- CN
- China
- Prior art keywords
- trunnion shaft
- balance
- collision space
- single cylinder
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a balance shaft device of single-cylinder diesel engine, belonging to the technical field of diesel engine fitting device, comprising an upper balance shaft and a lower balance shaft, which is characterized in that under the precondition of ensuring the balance shaft will not interfere with the crankshaft crank arm and lever head, the upper and lower balance shafts are provided with cast anti-impact space when casting or discarded anti-impact space when machining, as the maximum rotating radius of the balance shaft of the traditional single cylinder diesel engine only can be designed at R1, however, by the utility model, the maximum rotating radius can be designed at R3, moreover the mass of the balance shaft is added by the mass of R3-R1 compared with the traditional balance shaft, Rho1 can also be added, therefore the non-balance torque of the balance shaft is more than the non-balance torque of the traditional balance shaft, and more non-balance torque can meet the balance requirement of complete unit.
Description
One, affiliated technical field:
The utility model relates to single cylinder diesel trunnion shaft (dividing upper and lower trunnion shaft) device, belongs to diesel engine part device technique field.
Two, background technique:
The single cylinder engine trunnion shaft is that the single cylinder engine reciprocal inertia force is become as the power of centrifugal inertia force system, comes the device of balance with equal and opposite in direction with it, another group centrifugal inertia force that direction is opposite again.
Tradition single cylinder engine trunnion shaft structure is:
The diameter of axle is designed to steppedly on the trunnion shaft axial direction, and each diameter of axle size is different, to dodge the envelope that forms in connecting rod and the crankshaft rotating process, is characterized in making, processing is easy.Because in the trunnion shaft design, often only manage balance one-level reciprocal inertia force whole or in part, and the condition of complete equilibrium one-level reciprocal inertia force: unbalance moment=m
1ρ
1=1/2m
jR, wherein m
1Be the balancing mass on the every trunnion shaft that is laid in for balance one-level reciprocal inertia force, ρ
1Be the turning radius of balancing mass, m
jBe the motor reciprocating mass, R is the turning radius of engine revolution moving-mass.So the artificer exhausts the little m of possibility
1, to reduce the trunnion shaft cost; Big as far as possible ρ
1, because of trunnion shaft is eccentric shape, the trunnion shaft turning radius strengthens, then ρ
1Strengthen, to produce maximum unbalance moment.But the trunnion shaft design is limited by check of crankshaft, connnecting rod big end envelope, its turning radius infinitely can not be strengthened, and causes whole unbalance moment can not satisfy usage requirement.
Along with single-cylinder engine power strengthens, its cylinder diameter strengthens, reciprocal inertia force strengthens, and needs bigger trunnion shaft unbalance moment to come its reciprocal inertia force of balance, but m
1And ρ
1All can't strengthen arbitrarily, there is certain limitation in former design.So must change original design, design new trunnion shaft, to satisfy the requirement of complete machine to balance.
Three, summary of the invention
The purpose of this utility model is the motor that strengthens at required power, and its reciprocal inertia force strengthens, and by design improvement, provides a kind of and can obtain bigger unbalance moment and come its reciprocal inertia force of balance, satisfies the single cylinder engine trunnion shaft of assembled machine balance requirement.
Technical solution of the present utility model is as follows:
The single cylinder engine trunnion shaft, comprise trunnion shaft, following trunnion shaft, special way is guaranteeing under the prerequisite that trunnion shaft and check of crankshaft, connnecting rod big end do not interfere the anti-collision space of removing when anti-collision space that casts out when being provided with casting on upper and lower trunnion shaft or machining;
Anti-collision spatial position and size:
1, goes up trunnion shaft: the anti-collision space of removing when anti-collision space that dodge end, connnecting rod big end both sides at last trunnion shaft, casts out when leaning on a maximum cylindrical of trunnion shaft and a side covering of the fan junction to be provided with casting or machining; The width in the anti-collision space that last trunnion shaft is set is A1, highly for C1;
2, following trunnion shaft: the anti-collision space of removing when anti-collision space that dodge end, connnecting rod big end both sides at trunnion shaft down, casts out when on trunnion shaft covering of the fan symmetry plane, being provided with casting or machining with the maximum cylindrical of trunnion shaft junction; The width in the anti-collision space that following trunnion shaft is set is A2, highly for C2;
3, bent axle, the installation relation of trunnion shaft up and down:
L=R1+R2+ δ in the design of conventional balanced axle, anti-collision spatial altitude C1 or C2＞L-R1-R2 in this patent, width A1 or A2＞M-N, R3=R1+C1 (or C2).
Wherein L is bent axle and trunnion shaft centre distance, R1 is that maximum commentaries on classics of conventional balanced axle revolved radius, R2 is the check of crankshaft turning radius, R3 is the maximum turning radius of the utility model trunnion shaft, δ is the radial clearance of trunnion shaft and check of crankshaft, M is a check of crankshaft connnecting rod big end end width, and N is connnecting rod big end and trunnion shaft axial clearance.
Owing to limited by check of crankshaft, connnecting rod big end envelope, its maximum turning radius of tradition single cylinder engine trunnion shaft can only be designed to R1, the utility model trunnion shaft is owing to reserved the anti-collision space, its maximum turning radius can be designed to R3, and the trunnion shaft quality has increased than the conventional balanced axle and has been equivalent to that part of quality of R3-R1, ρ
1Also increase to some extent,, obtained bigger unbalance moment, satisfied the requirement of assembled machine balance so pass through the unbalance moment of designed its unbalance moment of trunnion shaft of this patent greater than the conventional balanced axle.
Four, description of drawings:
Fig. 1: be the left TV structure schematic representation of prior art single cylinder engine trunnion shaft;
Fig. 2: be the main TV structure schematic representation of prior art single cylinder engine trunnion shaft;
Fig. 3: be the left TV structure schematic representation of trunnion shaft on the utility model;
Fig. 4: be the main TV structure schematic representation of trunnion shaft on the utility model;
Fig. 5: be the left TV structure schematic representation of trunnion shaft under the utility model;
Fig. 6: be the main TV structure schematic representation of trunnion shaft under the utility model;
Fig. 7: for trunnion shaft on the utility model rotates to certain any view;
Fig. 8: for trunnion shaft under the utility model rotates to certain any view.
Fig. 9: for (descending) certain trunnion shaft and bent axle, connecting rod view when some of rotating to of trunnion shaft on the utility model.
In the accompanying drawing: 1, connecting rod, 2, bent axle, 3, envelope, 4, check of crankshaft, 5, connnecting rod big end, 6, go up trunnion shaft, 7, trunnion shaft down.
Five, embodiment
With reference to figure 3-7, preferred embodiment of the utility model is as follows:
The single cylinder engine trunnion shaft of the present embodiment divides upper and lower trunnion shaft, because trunnion shaft is in rotary movement, just near some points, interfere with check of crankshaft or connnecting rod big end, therefore single cylinder engine trunnion shaft of the present utility model is guaranteeing that trunnion shaft and check of crankshaft, connnecting rod big end do not interfere under the situation, the anti-collision space of removing when anti-collision space that casts out when being provided with casting on upper and lower trunnion shaft different parts or machining;
Anti-collision spatial position and being of a size of
1, goes up trunnion shaft: the anti-collision space of removing when anti-collision space that dodge end, connnecting rod big end both sides at last trunnion shaft, casts out when leaning on a maximum cylindrical of trunnion shaft and a side covering of the fan junction to be provided with casting or machining; The width in the anti-collision space that last trunnion shaft is set is A1, highly for C1;
2, following trunnion shaft: the anti-collision space of removing when anti-collision space that dodge end, connnecting rod big end both sides at trunnion shaft down, casts out when on trunnion shaft covering of the fan symmetry plane, being provided with casting or machining with the maximum cylindrical of trunnion shaft junction; The width in the anti-collision space that following trunnion shaft is set is A2, highly for C2;
3, bent axle, the installation relation of trunnion shaft up and down:
L=R1+R2+ δ in the design of conventional balanced axle, anti-collision spatial altitude C1 or C2＞L-R1-R2 in this patent, width A1 or A2＞M-N, R3=R1+C1 (or C2);
Wherein L is bent axle and trunnion shaft centre distance, R1 is that maximum commentaries on classics of conventional balanced axle revolved radius, R2 is the check of crankshaft turning radius, R3 is the maximum turning radius of the utility model trunnion shaft, δ is the radial clearance of trunnion shaft and check of crankshaft, M is a check of crankshaft connnecting rod big end end width, and N is connnecting rod big end and trunnion shaft axial clearance.
Owing to limited by check of crankshaft, connnecting rod big end envelope, its maximum turning radius of tradition single cylinder engine trunnion shaft can only be designed to R1, the utility model trunnion shaft is owing to reserved the anti-collision space, its maximum turning radius can be designed to R3, and the trunnion shaft quality has increased than the conventional balanced axle and has been equivalent to that part of quality of R3-R1, ρ
1Also increase to some extent,, satisfied the requirement of assembled machine balance so the unbalance moment of the trunnion shaft that designs by this patent has obtained bigger unbalance moment greater than the unbalance moment of conventional balanced axle.
Claims (4)
1, single cylinder engine trunnion shaft comprises upper and lower trunnion shaft, the anti-collision space of removing when anti-collision space that casts out when it is characterized in that being provided with casting on upper and lower trunnion shaft or machining.
2, according to the described single cylinder engine trunnion shaft of claim 1, it is characterized in that the described trunnion shaft of going up: in the anti-collision space that last trunnion shaft is dodged end, connnecting rod big end both sides, removed when being provided with the anti-collision space that casts out when casting or machining by a maximum cylindrical of trunnion shaft and a side covering of the fan junction, the width in the anti-collision space that last trunnion shaft is set is A1, highly is C1.
3, according to the described single cylinder engine trunnion shaft of claim 1, it is characterized in that described down trunnion shaft: the anti-collision space of removing when anti-collision space that dodge end, connnecting rod big end both sides at trunnion shaft down, casts out when being provided with casting with the maximum cylindrical of trunnion shaft junction on trunnion shaft covering of the fan symmetry plane or machining, the width in the anti-collision space that following trunnion shaft is set are A2, highly are C2.
4,, it is characterized in that described bent axle, the installation relation of trunnion shaft up and down according to the described single cylinder engine trunnion shaft of claim 1:
L=R1+R2+ δ, anti-collision spatial altitude C1 or C2＞L-R1-R2, width A1 or A2＞M-N, R3=R1+C1 or C2;
Wherein L is bent axle and trunnion shaft centre distance, R1 is that maximum commentaries on classics of conventional balanced axle revolved radius, R2 is the check of crankshaft turning radius, R3 is the maximum turning radius of the utility model trunnion shaft, δ is the radial clearance of trunnion shaft and check of crankshaft, M is a check of crankshaft connnecting rod big end end width, and N is connnecting rod big end and trunnion shaft axial clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620082912 CN2911319Y (en) | 2006-04-08 | 2006-04-08 | Balance shaft of single cylinder engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620082912 CN2911319Y (en) | 2006-04-08 | 2006-04-08 | Balance shaft of single cylinder engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911319Y true CN2911319Y (en) | 2007-06-13 |
Family
ID=38133180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620082912 Expired - Fee Related CN2911319Y (en) | 2006-04-08 | 2006-04-08 | Balance shaft of single cylinder engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2911319Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761385B (en) * | 2009-12-31 | 2011-11-09 | 杨新功 | High-efficiency constant-toque output single-cylinder engine |
| CN109322972A (en) * | 2018-12-10 | 2019-02-12 | 广西玉柴机器股份有限公司 | Double balance shaft structure |
-
2006
- 2006-04-08 CN CN 200620082912 patent/CN2911319Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761385B (en) * | 2009-12-31 | 2011-11-09 | 杨新功 | High-efficiency constant-toque output single-cylinder engine |
| CN109322972A (en) * | 2018-12-10 | 2019-02-12 | 广西玉柴机器股份有限公司 | Double balance shaft structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20150408 |
|
| EXPY | Termination of patent right or utility model |