CN216331426U - Differential supporting device of formula car - Google Patents
Differential supporting device of formula car Download PDFInfo
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- CN216331426U CN216331426U CN202123288736.8U CN202123288736U CN216331426U CN 216331426 U CN216331426 U CN 216331426U CN 202123288736 U CN202123288736 U CN 202123288736U CN 216331426 U CN216331426 U CN 216331426U
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Abstract
The utility model provides a differential supporting device of an equation car, and relates to the technical field of vehicles; the differential supporting device includes: the connecting shaft of the differential penetrates through the supporting disc, the supporting disc is disc-shaped, the connecting shaft is eccentrically arranged relative to the supporting disc, the supporting disc is arranged in a through hole formed in the supporting disc, spline connection structures which are matched with each other are respectively arranged on the outer arc surface of the supporting disc and the inner arc surface of the through hole, and the spline connection structures are used for preventing the supporting disc from rotating relative to the through hole; the supporting disc is suitable for being separated from the supporting frame along the axial direction of the connecting shaft. Therefore, the more the positioning keys (or the number of teeth) of the spline connection structure are, the larger the adjusting stage number of the center distance between the large chain wheel and the small chain wheel is, so that the dynamic property of the equation racing car matched with the whole car is stronger, and the requirement of the dynamic property of the equation racing car is met.
Description
Technical Field
Relate to vehicle technical field, in particular to differential mechanism strutting arrangement of equation motorcycle race.
Background
With the rapid development of the automobile industry in China and the improvement of the quality of life of people, various racing sports are generated in succession. In 2010, china held a first college Formula (FSAE) race followed by many colleges developing a study design for a karman car in the formula race.
The cooperative optimization design of the FSAE racing car transmission system structure is a complex and systematic multi-parameter and multi-constraint optimization design problem, and various structural performances of components must be met. The optimal design of the differential mechanism support assembly structure is one of the conditions for obtaining a reasonable structural scheme and improving the overall performance of the racing car. The differential support assembly is therefore critical to improving overall performance of the race car.
However, the existing differential supporting assembly has multiple problems that the center distance adjusting range between the output shaft of the gearbox and the differential connecting shaft is small, so that the dynamic property is poor, the supporting reliability is poor, the weight is too large, the weight is not beneficial to light weight, and even the weight which meets the requirements of competition cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a differential supporting device of an equation car, which solves the problem of poor dynamic performance caused by small center distance adjusting stages of a differential supporting assembly of the equation car.
In particular, the present invention provides a differential supporting apparatus of an equation car, comprising: a supporting frame and a supporting disk,
the connecting shaft of the differential of the formula car penetrates through the supporting disc, the supporting disc is disc-shaped, the connecting shaft is eccentrically arranged relative to the supporting disc,
the supporting disc is arranged in a through hole formed in the supporting frame, and the outer arc surface of the supporting disc and the inner arc surface of the through hole are respectively provided with a spline connection structure which is matched with each other, and the spline connection structure is used for preventing the supporting disc from rotating relative to the through hole;
the supporting disc is suitable for being separated from the supporting frame along the axial direction of the connecting shaft;
the support frame is connected with the car body of the formula car.
Further, the spline connection structure is an involute spline.
Furthermore, the support frame and the supporting disk are two and are arranged in a one-to-one correspondence mode, and the two support frames are arranged on two sides of the differential mechanism respectively.
Further, the support frame and the support disc are made of carbon fiber composite materials.
Further, the supporting frame and the supporting plate are both of aluminum structures.
Further, the support frame includes disc structure and two support arms, the through-hole set up in the central authorities department of disc structure, the support arm is the V font, the both ends of the opening part of support arm respectively with disc structure connects, the department of buckling of support arm with the automobile body of equation motorcycle race can be dismantled and be connected, two the support arm is adjacent to be set up.
The disc structure comprises a disc structure and a supporting disc, and is characterized by further comprising a first fixing piece and a second fixing piece, wherein the first fixing piece is provided with a first groove body, the first groove body penetrates through the first fixing piece, the outer arc surface of the disc structure is respectively provided with a first connecting lug and a second connecting lug, the first connecting lug is hinged with the first fixing piece, and the disc structure and the supporting disc are both arranged in the first groove body;
the second fixing piece is of a cuboid structure, a protruding portion is arranged at a long edge of the second fixing piece and close to one end of the second fixing piece, a second groove body is formed in the second fixing piece and extends along the long edge of the second fixing piece, the second groove body is arranged along the wide edge of the second fixing piece, one end of the second fixing piece and the protruding portion penetrate through the second groove body, a limiting rod is fixed in the second groove body and located at the protruding portion, the limiting rod is connected with two opposite side walls of the second groove body, the other end of the second fixing piece is hinged to the second connecting lug, the limiting rod is arranged in an area surrounded by the supporting arm and the disc structure, and the disc structure and the supporting disc are arranged in the second groove body.
Further, the connecting shaft is in transmission connection with an output shaft of a gearbox of the formula car through a chain transmission mechanism.
Further, the number of teeth of the spline is 60 to 100.
Further, the modulus of the spline is selected in the range of 0.5 to 1.5.
In the process of adjusting the number of stages of the center distances between the large chain wheel and the small chain wheel by using the differential supporting device, the supporting disc can be separated from the supporting frame along the axial direction of the connecting shaft when the formula racing car is in a stop state, then the supporting disc rotates around the circle center of the supporting disc, the distance between the connecting shaft and the output shaft of the gearbox is changed by utilizing the characteristic that the connecting shaft is eccentrically arranged relative to the supporting disc, then the supporting disc is installed in the through hole, and the position of the supporting disc after rotating around the circle center of the supporting disc can still be kept after the supporting disc is installed in the through hole by utilizing the characteristic that the outer arc surface of the supporting disc and the inner arc surface of the through hole are respectively provided with the spline connection structures which are matched with each other, so that the number of stages of the center distances between the large chain wheel and the small chain wheel can be adjusted.
Because the spline connection structure has a plurality of navigation keys (or a plurality of teeth) and arranges on the circumference, consequently make the supporting disk rotate and keep in arbitrary assigned position department relative to the through-hole, thereby make the distance between connecting axle and the gearbox output shaft of relative supporting disk eccentric settings can adjust wantonly, thereby make the centre-to-centre spacing between big and small sprocket adjust in the scope more than 100 grades, consequently spline connection structure's navigation key (or tooth number) is more, the regulation progression of the centre-to-centre spacing between big and small sprocket is bigger, make the power of equation motorcycle race and whole car looks adaptation stronger, thereby satisfy equation motorcycle dynamic's needs.
In addition, the carbon fiber composite material has the great advantage of light weight, so that the vehicle body weight is not excessive and exceeds the competition requirement of the formula car.
Meanwhile, by utilizing the designability of the composite material, the positions with weak structural strength of the support frame and the support disc can be found through computer simulation analysis in the early design process, and the structural strength of the positions can be improved by changing the proportion of the composite material, so that the support frame and the support disc with stable and excellent support performance can be prepared by utilizing the conforming materials.
In addition, because the connecting axle links together for controlling two axles usually and through differential mechanism, consequently will support frame and supporting disk are two, and set up respectively differential mechanism's both sides can guarantee to the support of connecting axle firm, guarantee the support effect to the connecting axle.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic layout of the drive train of the differential of the formula car of the present invention;
fig. 2 is a schematic front view of the support bracket and support plate of the present invention assembled together;
FIG. 3 is a schematic front view of the support disk of the present invention;
FIG. 4 is another schematic front view of the support bracket and support plate of the present invention assembled together;
FIG. 5 is a schematic cross-sectional front view of the second mount of the present invention;
fig. 6 is a schematic cross-sectional front view of the first fixing member of the present invention.
Detailed Description
Referring to fig. 1 to 6, the present embodiment provides a differential 100 supporting apparatus of formula car, including: a support frame 200 and a support plate 300,
the connecting shaft 110 of the formula racing differential 100 passes through the support plate 300, the support plate 300 is disc-shaped, the connecting shaft 110 is eccentrically arranged relative to the support plate 300,
the supporting disc 300 is arranged in a through hole formed in the supporting frame 200, the outer arc surface of the supporting disc 300 and the inner arc surface of the through hole are respectively provided with a spline connection structure 400 which are matched with each other, and the spline connection structure 400 is used for preventing the supporting disc 300 from rotating relative to the through hole;
the support plate 300 is adapted to be separated from the support frame 200 along the axial direction of the connecting shaft 110;
the support frame 200 is connected with the car body of the formula car.
It should be noted that the connecting shaft 110 is in transmission connection with the output shaft of the transmission case 120 of the formula car through the chain transmission mechanism 130, so that the distance between the output shaft of the transmission case 120 and the connecting shaft 110 of the differential 100 is the number of the steps for adjusting the center distance between the large and small sprockets.
In the process of adjusting the number of stages of the center distances between the large and small sprockets by using the supporting device of the differential 100 of the present embodiment, when the formula racing car is in a stop state, the supporting plate 300 may be separated from the supporting frame 200 along the axial direction of the connecting shaft 110, and then the supporting plate 300 may rotate around the center of the circle, the distance between the connecting shaft 110 and the output shaft of the transmission case 120 may be changed by using the characteristic that the connecting shaft 110 is eccentrically disposed with respect to the supporting plate 300, and then the supporting plate 300 may be installed in the through hole, and the characteristic that the outer arc surface of the supporting plate 300 and the inner arc surface of the through hole are respectively provided with the spline connection structures 400 that are mutually matched with each other may be used to maintain the position of the supporting plate 300 after being installed in the through hole after rotating around the center of the through hole, thereby adjusting the number of stages of the center distances between the large and small sprockets.
The spline connection structure 400 has a plurality of positioning keys (or a plurality of teeth) arranged on the circumference, so that the support plate 300 can rotate relative to the through hole and be kept at any specified position, the distance between the connecting shaft 110 eccentrically arranged relative to the support plate 300 and the output shaft of the gearbox 120 can be adjusted at will, and the center distance between the large and small chain wheels can be adjusted within the range of more than 100 levels, so that the more the positioning keys (or the number of teeth) of the spline connection structure 400 are, the larger the adjusting number of the center distance between the large and small chain wheels is, the stronger the dynamic property of the equation racing car matched with the whole car is, and the requirement of the dynamic property of the equation racing car is met.
For example, the adjustment amount of the center distance between the large and small sprockets is 12mm, and the eccentricity of the connecting shaft 110 with respect to the support plate 300 is 6mm, so that the number of stages of the adjustment amount of the center distance of 12mm can be achieved by only detaching the support plate 300 from the through hole and adjusting the position of the connecting shaft 110 with respect to the support plate 300 at the eccentricity of 6 mm.
Referring to fig. 1 to 6, further, the spline connection structure 400 is an involute spline, so that a plurality of gear teeth are arranged along the outer arc surface of the support plate 300, and here, the structural characteristics of the involute spline are fully utilized, so that more gear teeth can be arranged on the outer arc surface of the support plate 300, so that the corresponding center distance adjusting stage number is enlarged, and meanwhile, the characteristic that the gear teeth of the involute spline are firmly engaged with each other is utilized, so that the support plate 300 can still keep a stable fixed state with the support frame 200 under the condition of more gear teeth, and the support plate 300 is prevented from rotating relative to the through hole.
Further, the number of the splines is 60 to 100, and the pressure angle can be selected to be 20 to 40 degrees.
Further, the modulus of the spline is selected in the range of 0.5 to 1.5.
Referring to fig. 1 to 6, further, the two support frames 200 and the two support plates 300 are disposed in one-to-one correspondence, and the two support frames 200 are disposed on two sides of the differential 100, respectively.
Because the connecting shaft 110 is usually a left shaft and a right shaft and is connected together through the differential 100, the supporting frames 200 and the supporting discs 300 are two and are respectively arranged on two sides of the differential 100, so that the connecting shaft 110 can be stably supported, and the supporting effect on the connecting shaft 110 is ensured.
Further, the supporting frame 200 and the supporting plate 300 are made of carbon fiber composite material.
The carbon fiber composite material has the great advantage of light weight, so that the vehicle body weight is ensured not to be too large to exceed the competition requirement of the formula car.
Meanwhile, by utilizing the designability of the composite material, the positions with weak structural strength of the support frame 200 and the support disc 300 can be found through computer simulation analysis in the early design process, and the structural strength of the positions can be improved by changing the proportion of the composite material, so that the support frame 200 and the support disc 300 with stable and excellent support performance can be prepared by utilizing the conforming materials.
Further, the supporting frame 200 and the supporting plate 300 are both made of aluminum.
Particularly, the support frame 200 and the support plate 300 are made of aluminum materials with low density, so that the light weight is guaranteed, and the corresponding support structure strength is met.
Referring to fig. 1 to 6, further, the supporting frame 200 includes a disc structure 210 and two supporting arms 220, the through hole is opened at the center of the disc structure 210, the supporting arms 220 are V-shaped, two ends of the opening of the supporting arms 220 are respectively connected to the disc structure 210, the bending portion of the supporting arms 220 is detachably connected to the car body of the formula car, and the two supporting arms 220 are adjacently disposed.
Utilize support arm 220 to be the V font to the department of buckling of support arm 220 with the automobile body of equation motorcycle race can be dismantled and be connected, thereby make two adjacent support arms 220 that set up both guarantee to disc structure 210's support intensity, reduce whole weight by utilizing fretwork design, reach the car weight requirement of participating in the race.
Referring to fig. 1 to 6, further, the supporting device of the differential 100 of the formula racing car further includes a first fixing member 510 and a second fixing member 520, the first fixing member 510 is provided with a first slot 511, the first slot 511 penetrates the first fixing member 510, an outer arc surface of the disc structure 210 is provided with a first connection lug 230 and a second connection lug 240, the first connection lug 230 is hinged to the first fixing member 510, and the disc structure 210 and the supporting disc 300 are both disposed in the first slot 511;
the second fixing member 520 has a rectangular parallelepiped structure, a protrusion 522 is provided at one long side of the second fixing member 520, the protrusion 522 is disposed near one end of the second fixing member 520, the second fixing member 520 is provided with a second slot 521, the second slot 521 extends along the long side of the second fixing member 520, the second slot 521 penetrates one end of the second fixing member 520 and the protrusion 522 along the wide side of the second fixing member 520, a limiting rod 523 is fixed in the second slot 521, the limiting rod 523 is positioned at the protrusion 522, the limiting rod 523 is connected with two opposite side walls of the second slot 521, the other end of the second fixing member 520 is hinged with the second connecting lug 240, the limiting rod 523 is disposed in the area enclosed by the supporting arm 220 and the disc structure 210, the disc structure 210 and the supporting plate 300 are both disposed in the second trough 521.
The disc structure 210 and the supporting disc 300 are both arranged in the first slot 511, so that the axial movement range of the supporting disc 300 along the connecting shaft 110 is limited, and the supporting disc 300 is prevented from being separated from the through hole; meanwhile, the first fixing member 510 is hinged to the first coupling lug 230, and the first coupling lug 230 is disposed on the outer arc surface of the disc structure 210, so that the first fixing member 510 can rotate to the outer side of the disc structure 210 relative to the first coupling lug 230, thereby facilitating the separation of the supporting plate 300 from the through hole.
Similarly, the disc structure 210 and the support disc 300 are both disposed in the second slot 521, so as to limit the axial movement range of the support disc 300 along the connecting shaft 110, and prevent the support disc 300 from being separated from the through hole; meanwhile, the second fixing member 520 is hinged to the second engaging lug 240, and the second engaging lug 240 is disposed on the outer arc surface of the disc structure 210, so that the second fixing member 520 can rotate to the outer side of the disc structure 210 relative to the first engaging lug 230, thereby facilitating the separation of the supporting plate 300 from the through hole; moreover, since the length of the second fixing member 520 is too long, in order to prevent the second fixing member 520 from rotating during the running vibration of the vehicle body, and thus the supporting plate 300 is separated from the through hole, a protrusion 522 is disposed at one end of the second fixing member 520, and a limit rod 523 connected to the protrusion 522 is disposed in an area enclosed by the supporting arm 220 and the disc structure 210, so that one end of the second fixing member 520 is limited to swing only in a small range, and thus the disc structure 210 and the supporting plate 300 are prevented from being separated from the second slot 521.
Referring to fig. 1 to 6, further, the connecting shaft 110 is in transmission connection with an output shaft of a gearbox 120 of the formula car through a chain transmission mechanism 130. To meet the transmission requirements of formula cars.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A differential support device for an equation car, comprising: the supporting plate is disc-shaped, a connecting shaft of the differential of the formula car penetrates through the supporting plate, the connecting shaft is eccentrically arranged relative to the supporting plate,
the supporting disc is arranged in a through hole formed in the supporting frame, and the outer arc surface of the supporting disc and the inner arc surface of the through hole are respectively provided with a spline connection structure which is matched with each other, and the spline connection structure is used for preventing the supporting disc from rotating relative to the through hole;
the supporting disc is suitable for being separated from the supporting frame along the axial direction of the connecting shaft;
the support frame is connected with the car body of the formula car.
2. The differential support apparatus of formula car according to claim 1, wherein said spline connection structure is involute splines.
3. The differential supporting apparatus of formula car according to claim 1, wherein said supporting brackets and supporting plates are two and are disposed in one-to-one correspondence, and two supporting brackets are disposed on two sides of said differential respectively.
4. The differential support apparatus of formula car of claim 1, wherein said support bracket and said support disk are made of carbon fiber composite material.
5. The differential support apparatus of formula car of claim 1, wherein said support bracket and said support plate are both of aluminum construction.
6. The differential supporting device of the formula racing car as claimed in claim 1, wherein the supporting frame comprises a disc structure and two supporting arms, the through hole is opened at the center of the disc structure, the supporting arms are in a V shape, two ends of the opening of each supporting arm are respectively connected with the disc structure, the bending part of each supporting arm is detachably connected with the car body of the formula racing car, and the two supporting arms are arranged adjacently.
7. The differential supporting device of the formula car as claimed in claim 6, further comprising a first fixing member and a second fixing member, wherein the first fixing member is provided with a first groove, the first groove penetrates through the first fixing member, the outer arc surface of the disc structure is respectively provided with a first connecting lug and a second connecting lug, the first connecting lug is hinged to the first fixing member, and the disc structure and the supporting disc are both arranged in the first groove;
the second fixing piece is of a cuboid structure, a protruding portion is arranged at a long edge of the second fixing piece and close to one end of the second fixing piece, a second groove body is formed in the second fixing piece and extends along the long edge of the second fixing piece, the second groove body is arranged along the wide edge of the second fixing piece, one end of the second fixing piece and the protruding portion penetrate through the second groove body, a limiting rod is fixed in the second groove body and located at the protruding portion, the limiting rod is connected with two opposite side walls of the second groove body, the other end of the second fixing piece is hinged to the second connecting lug, the limiting rod is arranged in an area surrounded by the supporting arm and the disc structure, and the disc structure and the supporting disc are arranged in the second groove body.
8. The differential support device of formula car of claim 7, wherein the connecting shaft is in driving connection with the output shaft of the gearbox of formula car through a chain drive.
9. The differential support apparatus of formula car according to claim 2, wherein the number of teeth of said splines is 60 to 100.
10. The differential support apparatus of formula car according to claim 2, wherein the modulus of said splines is selected in the range of 0.5 to 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123288736.8U CN216331426U (en) | 2021-12-24 | 2021-12-24 | Differential supporting device of formula car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123288736.8U CN216331426U (en) | 2021-12-24 | 2021-12-24 | Differential supporting device of formula car |
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| Publication Number | Publication Date |
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| CN216331426U true CN216331426U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123288736.8U Active CN216331426U (en) | 2021-12-24 | 2021-12-24 | Differential supporting device of formula car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083982A (en) * | 2021-12-24 | 2022-02-25 | 哈尔滨工业大学（威海） | Differential supporting device of formula car |
| CN114083982B (en) * | 2021-12-24 | 2024-05-28 | 哈尔滨工业大学（威海） | Differential mechanism supporting device of formula car |
-
2021
- 2021-12-24 CN CN202123288736.8U patent/CN216331426U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083982A (en) * | 2021-12-24 | 2022-02-25 | 哈尔滨工业大学（威海） | Differential supporting device of formula car |
| CN114083982B (en) * | 2021-12-24 | 2024-05-28 | 哈尔滨工业大学（威海） | Differential mechanism supporting device of formula car |
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