CN202480826U - Balance shaft for transition of middle-section offset circular arc of heavy-duty car - Google Patents
Balance shaft for transition of middle-section offset circular arc of heavy-duty car Download PDFInfo
- Publication number
- CN202480826U CN202480826U CN201220130748XU CN201220130748U CN202480826U CN 202480826 U CN202480826 U CN 202480826U CN 201220130748X U CN201220130748X U CN 201220130748XU CN 201220130748 U CN201220130748 U CN 201220130748U CN 202480826 U CN202480826 U CN 202480826U
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- Prior art keywords
- balance shaft
- stage casing
- circular arc
- section
- transition
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Abstract
The utility model relates to a balance shaft, and in particular relates to a balance shaft for transition of a middle-section offset circular arc of a heavy-duty car, and the balance shaft is used for solving the problems that a spatial position is not enough due to asymmetric arrangement of transmission shafts, the stress of a traditional balance shaft which is in the shape of a Chinese character 'ji' is large and the like. The balance shaft consists of a middle-section large circular arc part, a middle-section straight-line section part, two end flanges and two end press parts, the middle-section large circular arc part takes one end flange as a starting point and one point of the position of a transmission shaft as a circle center, or takes one point of a straight line offsetting the certain distance S1 from the position of the transmission shaft as the circle center, the radius of the circular arc is decided by spatial arrangement, the middle-section straight-line section part takes the other end flange as the starting point and is tangent with the middle-section large circular arc part, and the offset distance between a geometric center line of the balance shaft and the center line of a circle center of the middle-section large circular arc part is S, wherein the S is equal to or larger than 0. Compared with the traditional balance shaft which is in the shape of a Chinese character 'ji', the balance shaft for the transition of the middle-section offset circular arc of the heavy-duty car, disclosed by the utility model has the advantage of greatly improved toughness.
Description
Technical field:
The present invention relates to a kind of balance shaft, be specifically related to a kind of heavy motor vehicle balance shaft.
Background technology:
Equalizing suspension system is used for multi-wheeler, and vehicle bridge is installed to the equalizing suspension system both sides, and equalizing suspension system is captiveed joint with vehicle frame; Spring block (bearing hub) is made hinge with fixed balance shaft and is connected; Trammel beam two arms are isometric, regulate through leaf spring, and the vertical load on the vehicle bridge of both sides is equated.
At present the heavy motor vehicle balance shaft has two kinds of structures: a kind ofly be central authorities' symmetry " several " font structure (see figure 1)s, another kind of is to adapt to the asymmetric layout design-calculated biasing of transmission shaft " several " font structure (see figure 2).These two kinds of structural advantages are that central space is big, and when going middle vehicle bridge left and right sides play, transmission shaft is beated and is difficult for interfering with balance shaft; Shortcoming is that several fonts bending place stress is bigger, and stress concentration causes fracture easily.
Summary of the invention:
The utility model has solved the locus deficiency that causes because of the asymmetric layout of transmission shaft through the balance shaft of a kind of stage casing biasing of design arc transition, has avoided problems such as tradition " several " font balance shaft stress is big simultaneously.
The utility model has following technical scheme to realize:
The balance shaft of a kind of heavy motor vehicle stage casing biasing arc transition; Be grouped into by stage casing great circle arc part, stage casing linear portion part, two end flanges and two ends press-fit portion; Stage casing great circle arc part is a starting point with an end flanges; More locational with transmission shaft is the center of circle, perhaps with transmission shaft location bias certain distance S
1Straight line on be the center of circle a bit; Arc radius is determined that by spatial destribution linear portion part in stage casing is a starting point with other end flange, and is tangent with stage casing great circle arc part; The geometric center lines of balance shaft is S, wherein 0≤S through the centerline offset distance in the great circle arc part center of circle, stage casing relatively.
Wherein, the available arc section of stage casing linear portion part replaces.
" a few font " structure that the utility model is traditional relatively, toughness improves greatly.Through finite element analysis, under the situation of carrying same load, the stress of the middle section transitional arc structure stress of tradition " a few font " structure reduces by 15%; And under the situation that satisfies the equality strength requirement, tradition " a few font " balance shaft quality reduces relatively, realizes lightweight; Simultaneously, structure actv. of the present invention has been avoided the position of transmission shaft, has guaranteed transmission shaft jitter space under steam.
Description of drawings:
Fig. 1 is central authorities' symmetry " several " font structures
Fig. 2 is the balance shaft of biasing " several " the font structure of the asymmetric layout of transmission shaft;
Fig. 3, Fig. 4 are the structural representation of the utility model.
The specific embodiment:
Like Fig. 1-shown in Figure 4; The utility model press-fits part 6 by stage casing great circle arc part 1, stage casing linear portion part 5, two end flanges 4 and two ends and forms; Stage casing great circle arc part 1 is a starting point with an end flanges 4, is the center of circle with transmission shaft position 2, and arc radius is determined by spatial destribution; Stage casing linear portion part 5 is a starting point with other end flange 4, and is tangent with stage casing great circle arc part 1.
The geometric center lines 3 of the utility model (promptly apart from the equidistant straight line of balance shaft two-end-point) is transmission shaft position 2 offset or dish S (0≤S) relatively; Wherein, the relative transmission shaft in stage casing great circle arc part 1 center position 2 can offset or dish S
1(0≤S
1), linear portion part 5 can replace with circular arc.The present invention has guaranteed the rounding off of whole balance shaft, and intensity increases, and stress concentration reduces.
At car load upper mounting plate spring side limiting stopper, " eight " font propelling rod is installed at the vehicle bridge top at present, and actv. has limited vehicle bridge left and right sides play, therefore can adopt balance shaft stage casing arc transition structure.
Claims (2)
1. the balance shaft of heavy motor vehicle stage casing biasing arc transition; It is characterized in that: be grouped into by stage casing great circle arc part, stage casing linear portion part, two end flanges and two ends press-fit portion; Stage casing great circle arc part is a starting point with an end flanges; More locational with transmission shaft is the center of circle, perhaps with transmission shaft location bias certain distance S
1Straight line on be the center of circle a bit; Arc radius is determined that by spatial destribution linear portion part in stage casing is a starting point with other end flange, and is tangent with stage casing great circle arc part; The geometric center lines of balance shaft is S, wherein 0≤S through the centerline offset distance in the great circle arc part center of circle, stage casing relatively.
2. the balance shaft of a kind of heavy motor vehicle according to claim 1 stage casing biasing arc transition is characterized in that: linear portion part available arc section in stage casing replaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220130748XU CN202480826U (en) | 2012-03-30 | 2012-03-30 | Balance shaft for transition of middle-section offset circular arc of heavy-duty car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220130748XU CN202480826U (en) | 2012-03-30 | 2012-03-30 | Balance shaft for transition of middle-section offset circular arc of heavy-duty car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202480826U true CN202480826U (en) | 2012-10-10 |
Family
ID=46955282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220130748XU Expired - Fee Related CN202480826U (en) | 2012-03-30 | 2012-03-30 | Balance shaft for transition of middle-section offset circular arc of heavy-duty car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202480826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923193A (en) * | 2012-11-22 | 2013-02-13 | 陕西重型汽车有限公司 | Rear balanced suspension frame system of heavy-duty car |
-
2012
- 2012-03-30 CN CN201220130748XU patent/CN202480826U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923193A (en) * | 2012-11-22 | 2013-02-13 | 陕西重型汽车有限公司 | Rear balanced suspension frame system of heavy-duty car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIBEN TRUCKS GROUP CO., LTD. Free format text: FORMER NAME: BAOTOU BEI BEN HEAVY-DUTY TRUCK CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 014032 Baotou, Castle Peak District, the Inner Mongolia Autonomous Region, No. two mailbox Patentee after: Beiben Trucks Group Co., Ltd. Address before: 014032 Baotou, Castle Peak District, the Inner Mongolia Autonomous Region, No. two mailbox Patentee before: Baotou Bei Ben Heavy-Duty Truck Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20150330 |
|
| EXPY | Termination of patent right or utility model |