CN210978267U - Novel front transmission shaft assembly - Google Patents
Novel front transmission shaft assembly Download PDFInfo
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- CN210978267U CN210978267U CN201921824637.7U CN201921824637U CN210978267U CN 210978267 U CN210978267 U CN 210978267U CN 201921824637 U CN201921824637 U CN 201921824637U CN 210978267 U CN210978267 U CN 210978267U
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- spline
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- flange
- transmission shaft
- universal joint
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Abstract
The utility model relates to a novel preceding transmission shaft assembly, including first bead fork, universal joint assembly, universal joint fork, preceding transmission shaft pipe, spline housing and end face tooth integral key shaft, first bead fork passes through the universal joint assembly with the jaw of universal joint fork is connected, the universal joint fork is kept away from the one end welding of jaw and is in the one end of preceding transmission shaft pipe, the other end of preceding transmission shaft pipe with the spline housing welding. The end face tooth integral key shaft includes integrated into one piece's external spline shaft and flange, flange is inside to be hollow structure, external spline shaft's external spline with the internal spline phase-match of spline housing, external spline shaft inscription in the spline housing, use the bolt to pass between the two, reuse nut and gasket compress tightly, realize right external spline shaft with the connection of spline housing is fixed. The utility model discloses the epaxial welding seam of preceding transmission is kept away from to the rubber part on the intermediate strut assembly to the flange of end face tooth integral key shaft is inside to be hollow structure, is favorable to alleviateing the weight of preceding transmission shaft assembly.
Description
Technical Field
The utility model belongs to the technical field of the car transmission shaft assembly, in particular to preceding transmission shaft assembly end face tooth integral key shaft structure.
Background
The development of Chinese traffic is changing day by day, the running speed of heavy vehicles is also accelerating, and a transmission shaft assembly is used as an assembly for transmitting power, is connected between a gearbox and a rear axle and must reliably bear and transmit torque, so that the direction of increasing the precision of the transmission shaft and reducing the weight is always the effort on the premise of ensuring the strength of the transmission shaft assembly.
When the whole automobile is designed, in order to avoid causing resonance and reduce noise, the transmission shaft assembly is divided into a plurality of sections, is connected with a front transmission shaft assembly of the gearbox, is provided with a middle supporting assembly on a middle spline shaft and is arranged on a frame, so that the installation error of the front transmission shaft is compensated, and the front transmission shaft is suitable for displacement caused by the play of an elastically suspended engine and the deformation of the frame during running. For many years, a mode of welding a middle spline shaft and a front transmission shaft pipe is adopted, a rubber backing ring on a middle bearing assembly is close to a welding seam of the front transmission shaft pipe, although protective measures are taken during welding, heat radiation is still generated on the rubber backing ring during welding, meanwhile, welding heat is also transmitted to an oil seal of a middle support assembly, the oil seal is made of rubber, the performance of the oil seal is influenced inevitably, and measures must be taken to optimize a middle spline shaft structure so as to reduce the influence of the welding heat on a rubber part.
The structure of the conventional front transmission shaft assembly is shown in fig. 1, and it can be seen from the figure that a rubber backing ring 1a and an oil seal 2a on the middle support assembly are relatively close to a welding seam 3a on a front transmission shaft pipe, and the heat radiation during welding inevitably affects the performance of the rubber part. And the head of the bolt 4a extends out of the end face of the flange 5a, when designing a part flange yoke 6a connected with the flange 5a, the bottom of the flange yoke 6a has enough space to prevent the part flange yoke 6a and the bolt 4a from interfering with each other, and the flange yoke 6a needs to be reinforced at other parts to ensure the strength, thereby restricting the structural design of the flange yoke 6a and improving the production cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel preceding transmission shaft assembly improves through the structure to preceding transmission shaft assembly, has increased spline cover structure for the epaxial welding seam of preceding transmission is kept away from to the rubber part on the intermediate strut assembly, and the epaxial flange of end face tooth spline is hollow structure, has alleviateed the weight of preceding transmission shaft assembly. The utility model discloses a following technical scheme realizes: a novel front transmission shaft assembly comprises a first flange fork, a universal joint assembly, a universal joint fork, a front transmission shaft tube, a spline sleeve and an end face tooth spline shaft, wherein the first flange fork is connected with a fork head of the universal joint fork through the universal joint assembly, one end, far away from the fork head, of the universal joint fork is welded at one end of the front transmission shaft tube, and the other end of the front transmission shaft tube is welded with the spline sleeve;
the end face tooth integral key shaft includes integrated into one piece's external spline shaft and flange, flange is inside to be hollow structure, external spline shaft's external spline with the internal spline phase-match of spline housing, external spline shaft inscription in the spline housing, use the bolt to pass between the two, reuse nut and gasket compress tightly, realize right external spline shaft with the connection of spline housing is fixed.
Preferably, on the basis of the scheme, the bolt head is arranged in the end face of the connecting flange of the spline gear shaft, and the end face gear spline shaft is connected with a second flange fork arranged on the rear transmission shaft assembly through the connecting flange.
On the basis of the scheme, the spline housing and the end face tooth spline shaft are preferably made of steel materials.
The utility model provides a pair of novel front transmission shaft assembly has following advantage:
1. compare with traditional integral key shaft, the utility model discloses an inside hollow structure that is of flange of end face tooth integral key shaft is favorable to alleviateing preceding transmission shaft assembly weight.
2. The arrangement of the spline sleeve lengthens the distance between the middle supporting assembly and the welding seam of the front transmission shaft pipe, and reduces the influence of welding heat energy on a rubber backing ring and an oil seal on the middle supporting assembly.
3. The bolts of the end face tooth spline shaft counter bores do not extend out of the end face of the connecting flange, so that the space is not occupied, and the design of a part structure connected with the bolts is facilitated.
Drawings
FIG. 1 is a schematic view of a middle spline shaft structure of a common transmission shaft assembly;
fig. 2 is a schematic structural view of a novel front transmission shaft assembly according to an embodiment of the present invention;
the reference numerals in the schematic drawings illustrate: 1-a first flange yoke, 2-a universal joint assembly, 3-a universal joint yoke, 4-a front transmission shaft tube, 5-a spline housing, 6-an external spline shaft, 7-a connecting flange, 8-a bolt, 9-a nut and 10-a second flange yoke.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. The drawings are in simplified form and are not to scale, but rather are provided for convenience and clarity in describing the embodiments of the invention. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 2, the present invention provides a novel front transmission shaft assembly, which includes a first flange yoke 1, a universal joint assembly 2, a universal joint yoke 3, a front transmission shaft tube 4, a spline housing 5 and an end face tooth spline shaft, wherein the first flange yoke 1 is connected with a yoke of the universal joint yoke 3 through the universal joint assembly 2, one end of the universal joint yoke 3, which is far away from the yoke, is welded at one end of the front transmission shaft tube 4, and the other end of the front transmission shaft tube 4 is welded with the spline housing 5.
The end face tooth spline shaft comprises an integrally formed external spline shaft 6 and a connecting flange 7, and the connecting flange 7 is internally of a hollow structure, so that the weight of the end face tooth spline shaft can be reduced. The external spline of the external spline shaft 6 is matched with the internal spline of the spline housing 5, the external spline shaft 6 is internally connected in the spline housing 5, a bolt 8 penetrates between the two, and then a nut 9 and a gasket are used for compressing, so that the external spline shaft 6 and the spline housing 5 are fixedly connected. The heads of the bolts 8 are arranged inside the end surface of the connecting flange 7 of the spline gear shaft. The spline housing 5 and the end face tooth spline shaft are made of steel materials.
The end face tooth spline shaft is connected with a second flange yoke 10 arranged on the rear transmission shaft assembly through a connecting flange 7, and the head of the bolt 8 does not extend out of the end face tooth spline shaft, so that when the shape of the second flange yoke 10 is designed, enough space does not need to be reserved at the bottom of the second flange yoke 10 to prevent the second flange yoke and the bolt 8 from being influenced mutually.
Due to the arrangement of the spline sleeve 5, the rubber backing ring and the oil seal of the middle support assembly are far away from the welding seam on the front transmission shaft pipe 4, and the performance influence of heat radiation generated when the front transmission shaft pipe 4 is welded on the exchange of the rubber gasket and the oil seal is reduced.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a novel front drive axle assembly which characterized in that: the flange joint type universal joint comprises a first flange fork (1), a universal joint assembly (2), a universal joint fork (3), a front transmission shaft tube (4), a spline sleeve (5) and an end face tooth spline shaft, wherein the first flange fork (1) is connected with a fork head of the universal joint fork (3) through the universal joint assembly (2), one end, far away from the fork head, of the universal joint fork (3) is welded at one end of the front transmission shaft tube (4), and the other end of the front transmission shaft tube (4) is welded with the spline sleeve (5);
the end face tooth integral key shaft includes integrated into one piece's external spline shaft (6) and flange (7), flange (7) are inside to be hollow structure, the external spline of external spline shaft (6) with the internal spline phase-match of spline housing (5), external spline shaft (6) inscription in spline housing (5), use bolt (8) to pass between the two, reuse nut (9) and gasket compress tightly, realize right external spline shaft (6) with the connection of spline housing (5) is fixed.
2. The novel front propeller shaft assembly of claim 1, wherein: the head of the bolt (8) is arranged inside the end face of the connecting flange (7) of the spline gear shaft, and the end face gear spline shaft is connected with a second flange fork (10) arranged on the rear transmission shaft assembly through the connecting flange (7).
3. The novel front propeller shaft assembly of claim 1, wherein: the spline housing (5) and the end face tooth spline shaft are made of steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824637.7U CN210978267U (en) | 2019-10-28 | 2019-10-28 | Novel front transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824637.7U CN210978267U (en) | 2019-10-28 | 2019-10-28 | Novel front transmission shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978267U true CN210978267U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921824637.7U Active CN210978267U (en) | 2019-10-28 | 2019-10-28 | Novel front transmission shaft assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN210978267U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128212A (en) * | 2020-09-27 | 2020-12-25 | 东风商用车有限公司 | Aluminum alloy transmission shaft intermediate support connection structure, transmission shaft and vehicle |
| CN112124069A (en) * | 2020-09-22 | 2020-12-25 | 东风汽车底盘系统有限公司 | Intermediate support aluminum alloy transmission shaft for medium and heavy commercial vehicle |
| CN113202876A (en) * | 2021-04-30 | 2021-08-03 | 中国重汽集团济南动力有限公司 | Transmission shaft assembly for commercial vehicle with long wheelbase |
-
2019
- 2019-10-28 CN CN201921824637.7U patent/CN210978267U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124069A (en) * | 2020-09-22 | 2020-12-25 | 东风汽车底盘系统有限公司 | Intermediate support aluminum alloy transmission shaft for medium and heavy commercial vehicle |
| CN112128212A (en) * | 2020-09-27 | 2020-12-25 | 东风商用车有限公司 | Aluminum alloy transmission shaft intermediate support connection structure, transmission shaft and vehicle |
| CN113202876A (en) * | 2021-04-30 | 2021-08-03 | 中国重汽集团济南动力有限公司 | Transmission shaft assembly for commercial vehicle with long wheelbase |
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