CN207906310U - Truck drive shaft - Google Patents
Truck drive shaft Download PDFInfo
- Publication number
- CN207906310U CN207906310U CN201820253083.9U CN201820253083U CN207906310U CN 207906310 U CN207906310 U CN 207906310U CN 201820253083 U CN201820253083 U CN 201820253083U CN 207906310 U CN207906310 U CN 207906310U
- Authority
- CN
- China
- Prior art keywords
- eccentric
- shaft
- universal
- drive shaft
- truck drive
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000001681 protective effect Effects 0.000 claims description 17
- 239000004677 Nylon Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- Motor Power Transmission Devices (AREA)
Abstract
The utility model discloses a kind of truck drive shaft, including universal-joint fork, transmission shaft tube and eccentric shaft, bushing flange is arranged in one end of universal-joint fork, and bushing flange is equipped with centre bore and the first eccentric orfice；Ring flange is arranged in one end of transmission shaft tube, and central shaft and the second eccentric orfice are provided in an axial direction on ring flange；Central shaft is inserted into centre bore, and can be moved along the axial direction of centre bore；One end of eccentric shaft is fixed in the first eccentric orfice, and the other end is extended to across the second eccentric orfice in transmission shaft tube；And eccentric shaft can be moved along the axial direction of transmission shaft tube.Since central shaft and eccentric shaft can be axially moveable respectively, meet the demand of the relative position variation between speed changer and the input terminal of drive shaft, ensure torque reliable delivery, and its structure is compared to traditional by the way of free-sliding spline, complex degree of structure is simplified, transmission efficiency is improved.
Description
Technical field
The utility model is related to automobile technical field more particularly to a kind of truck drive shafts.
Background technology
Truck drive shaft is the important component connected in car transmissions between speed changer and drive axle, is connected to dynamic
Between the speed changer of power unit and the input shaft of drive shaft, it is mainly used for the output power of speed changer being transferred to the defeated of drive shaft
Enter axis.According to differences such as the operating conditions of impact or vehicle from road surface, the phase between speed changer and the input shaft of drive shaft
It can change to position, therefore it is required that transmission shaft can transmit torque, also want length scalable to meet speed changer and driving
The requirement of relative position variation between the input shaft of axis.
In the prior art, truck drive shaft mostly uses greatly double cruciform shaft formula universal joint truck drive shaft, that is, passes through front and back
Two cardan (hookes)universal joints and free-sliding spline pair ensure that transmission shaft transmits torque and length, angle variable quantity.
This structure is through analyzing and using there is following shortcoming：One is cardan (hookes)universal joint, which is variable speed, is driven ten thousand
Xiang Jie generates the fluctuation of speed during rotation, since there are backlashs for free-sliding spline connection, to generate impact and make an uproar
Sound；The second is due in torque transmittance process spline need opposite sliding, generate resistance to sliding, reduce efficiency, while causing to slide
The abrasion of dynamic spline pair, to increase impact and noise.
Utility model content
The purpose of this utility model is to provide a kind of truck drive shaft, to solve the above problems, it is ensured that torque reliable delivery
Under the premise of, the torsion gap of front and back transmission shaft is reduced, the generation of noise is reduced, reduces resistance to sliding, improves transmission efficiency, letter
Change the structure of passing power.
Truck drive shaft provided by the utility model, including：
Universal-joint fork, one end of the universal-joint fork are arranged bushing flange, on the bushing flange axially through having in
Heart hole and the first eccentric orfice, the centre bore are located at the middle part of the bushing flange, first eccentric orfice be distributed in it is described
On the circumference of the concyclic heart of centre bore；
Ring flange is arranged in one end of transmission shaft tube, the transmission shaft tube, is axially fixed on the ring flange in being provided with
Mandrel, and through there is the second eccentric orfice, second eccentric orfice be distributed in on the circumference of the concyclic heart of the central shaft；In described
Mandrel is inserted into the centre bore, and can be moved along the axial direction of the centre bore；
One end of eccentric shaft, the eccentric shaft is fixed in first eccentric orfice, and the other end passes through second bias
Hole extends in the transmission shaft tube；And the eccentric shaft can be moved along the axial direction of the transmission shaft tube.
Truck drive shaft as described above, wherein preferably, holding tank is offered on the universal-joint fork and is axially led to
Hole；
The bushing flange includes body part and connector sleeve, and the connector sleeve is fixedly connected with the body part, and along institute
Connector sleeve is stated to the direction far from the body part to extend；
The body part is embedded in the holding tank, and the connector sleeve extends into the axially extending bore.
Truck drive shaft as described above, wherein preferably, be equipped with eccentric bush in second eccentric orfice, institute
Eccentric bush is stated to be set on the eccentric shaft, and with the eccentric shaft clearance fit.
Truck drive shaft as described above, wherein further include protective case, one end of the protective case is arranged preferably
It is equipped with one end of the bushing flange in the universal-joint fork, the other end is sheathed on the transmission shaft tube and is equipped with the ring flange
One end.
Truck drive shaft as described above, wherein preferably, two first annular limits are provided on the universal-joint fork
Protrusion, the protective case are provided with the first limiting section close to one end of the universal-joint fork, and first limiting section is described in two
It is moved between first annular limit protrusion；
Two second annular protrusions are provided on the transmission shaft tube, the one end of the protective case far from the universal-joint fork is set
It is equipped with the second limiting section, the second limiting section moves between two second annular protrusions.
Truck drive shaft as described above, wherein preferably, ball head column, the bulb are provided on the eccentric shaft
Column is inserted in across first eccentric orfice in the universal-joint fork.
Truck drive shaft as described above, wherein preferably, the quantity of first eccentric orfice is three, and three
First eccentric orfice is between any two at 120 degree of angles.
Truck drive shaft as described above, wherein preferably, the quantity of second eccentric orfice is three, and three
Second eccentric orfice is between any two at 120 degree of angles.
Truck drive shaft as described above, wherein preferably, the quantity of the eccentric shaft is three.
Truck drive shaft provided by the utility model, including universal-joint fork, transmission shaft tube and eccentric shaft, the one of universal-joint fork
End setting bushing flange, bushing flange are equipped with centre bore and the first eccentric orfice；Ring flange, flange is arranged in one end of transmission shaft tube
It is axially fixed on disk and is provided with central shaft and the second eccentric orfice；Central shaft is inserted into centre bore, and can be along the axial direction of centre bore
It moves in direction；One end of eccentric shaft is fixed in the first eccentric orfice, and the other end is extended to across the second eccentric orfice in transmission shaft tube；
And eccentric shaft can be moved along the axial direction of transmission shaft tube.Since central shaft and eccentric shaft can be axially moveable respectively, meet
The demand of relative position variation between the input terminal of speed changer and drive shaft, it is ensured that torque reliable delivery, and it is tied
Structure by the way of free-sliding spline, simplifies complex degree of structure compared to traditional, improves transmission efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram for the truck drive shaft that the utility model embodiment provides；
Fig. 2 is the axial sectional view for the truck drive shaft that the utility model embodiment provides；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is the structural schematic diagram of the bushing flange for the truck drive shaft that the utility model embodiment provides.
Reference sign：
10- universal-joint fork 11- bushing flange 111- body part 112- connector sleeves
The first annular protrusion 20- transmission shaft tubes of 12- centre bores the first eccentric orfices of 13- 14-
21- ring flange 22- central shaft 24- eccentric bush the second annular protrusions of 25-
30- eccentric shaft 31- ball head column 40- protective cases the first limiting sections of 41-
The second limiting sections of 42-
Specific implementation mode
The embodiments of the present invention are described below in detail, the example of embodiment is shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the utility model, and cannot be construed to limitations of the present invention.
As shown in Figures 1 to 4, the truck drive shaft that the utility model embodiment provides, including universal-joint fork 10, transmission shaft
Pipe 20, central shaft 22 and eccentric shaft 30.
Wherein, one end setting bushing flange 11 of universal-joint fork 10, bushing flange 11 is axially through there is 12 He of centre bore
First eccentric orfice 13；Centre bore 12 is located at the middle part of bushing flange 11, and the first eccentric orfice 13 is distributed in and the 12 concyclic heart of centre bore
Circumference on；One end of transmission shaft tube 20 is provided with ring flange 21, is axially fixed on ring flange 21 and is provided with central shaft 22, and
Through there is the second eccentric orfice, the second eccentric orfice be distributed in on the circumference of the 22 concyclic heart of central shaft.
One end of eccentric shaft 30 is fixed in the first eccentric orfice 13, and the other end extends to transmission shaft tube across the second eccentric orfice
In 20；And eccentric shaft 30 can be moved along the axial direction of transmission shaft tube 20.
Preferably, holding tank and axially extending bore are offered on universal-joint fork 10；Bushing flange 11 includes body part 111 and connects
Female connector 112, connector sleeve 112 are fixedly connected with body part 111, and are extended to the direction far from body part 111 along centre bore 12；This
Body portion 111 is embedded in holding tank, and connector sleeve 112 extends into axially extending bore.Bushing flange 11 is fixed on ten thousand by this kind of mode
Into section fork 10, and bushing flange 11 is preferably made of nylon material, and 11 one side of bushing flange plays sealing function, separately
On the one hand connection and guiding role are played, ensures that torque normally transmits.
Wherein, since central shaft 22 can move in centre bore 12, eccentric shaft 30 can move in the second eccentric orfice, full
The demand of relative position variation between the foot input terminal of speed changer and drive shaft.In addition, central shaft 22 is fixed on transmission shaft
On pipe 20, the effect of guiding is primarily served, it can be ensured that universal-joint fork 10 and transmission shaft tube 20 are concentric, and eccentric shaft 30 can incite somebody to action
The output power of speed changer is transferred to the input shaft end of drive shaft.Ensure torque reliable delivery, and its structure is compared to biography
System by the way of free-sliding spline, simplify complex degree of structure, improve transmission efficiency.
Further, eccentric bush 24 is installed, eccentric bush 24 is along the axial direction side of transmission shaft tube 20 in second eccentric orfice
To extension, eccentric bush 24 is set on eccentric shaft 30, and with 30 clearance fit of eccentric shaft.
Preferably, eccentric bush 24 be nylon bush, nylon bush have frictional resistance it is small, it is wear-resisting shatter-proof the features such as, because
This, without using lubricating system, to reduce manufacture and cost of use, improves transmission efficiency.
And specifically, eccentric shaft 30 can be fixed by following manner, and ball head column 31, ball are arranged on eccentric shaft 30
Headpin 31 is inserted in across the first eccentric orfice 13 in universal-joint fork 10, to limit the axial movement of eccentric shaft 30.Avoid use
Traditional fastener such as bolt, simplifies mounting structure, saves cost.
Further, further include protective case 40, one end of protective case 40 is sheathed on universal-joint fork 10 and is equipped with bushing flange 11
One end, the other end be sheathed on transmission shaft tube 20 be equipped with ring flange 21 one end.Protective case 40 can dustproof and waterproof, avoid dust
Enter with foreign matters such as rainwater.
Preferably, in order to keep system stable structure, keep the transmission of power more steady, the quantity of the first eccentric orfice 13 is
Three, circle distribution of three the first eccentric orfices 13 centered on centre bore 12, and three the first eccentric orfices 13 between any two at
Spend angle.
So correspondingly, the quantity of the second eccentric orfice is three, and three the second eccentric orfices are between any two at degree angle.
Similarly, the quantity of eccentric shaft 30 is three.Each eccentric shaft 30 corresponds to first eccentric orfice 13 and one second eccentric
Hole.
In entire truck drive shaft, protective case 40 can dustproof and waterproof, avoid the foreign matters such as dust and rainwater from entering.Due in
Mandrel 22 and eccentric shaft 30 can move in the axial direction respectively, therefore, between universal-joint fork 10 and transmission shaft tube 20 between
Relative position can change, to meet requirement.
Since the eccentric shaft 30 of three circle distributions and the gap of the endoporus of eccentric bush 24 are smaller, and the gap is opposite
It is much bigger in the distance of backlash to transmission shaft rotation center that traditional free-sliding spline connects, therefore the torsion that the gap generates
Gyration very little can be substantially reduced due to impact and noise caused by the fluctuation of speed in transmission shaft rotation process.In addition,
Due to eccentric bush 24 have frictional resistance it is small, it is wear-resisting shatter-proof the features such as, there is no need to use lubricating system, reduce manufacture and
Cost of use improves transmission efficiency.And the truck drive shaft that the utility model embodiment provides is whole using traditional
The fasteners such as bolt, increase reliable transmission and stability, reduce complex degree of structure.
Two first annular limit protrusions are provided on universal-joint fork 10, protective case 40 is arranged close to one end of universal-joint fork 10
There are the first limiting section 41, the first limiting section 41 to be moved between two first annular limit protrusions.
Two second annular protrusions 25, one end setting of the protective case 40 far from universal-joint fork 10 are provided on transmission shaft tube 20
There are the second limiting section 42, the second limiting section 42 to be moved between two second annular protrusions 25.Due to transmission shaft tube 20 and universal joint
There is the movement of relative position between fork 10, therefore, in order to adapt to the movement, two first annular limit protrusions and two first rings is set
Shape protrusion 14 ensures that one end of protective case 40 is moved between two first annular raised 14, and the other end is in two second annular protrusions
It is moved between 25, avoids the movement for influencing relative position between transmission shaft tube 20 and universal-joint fork 10, moreover it is possible to avoid protective case 40
It falls off, increases sealing performance.
The structure, feature and effect of the utility model are described in detail based on the embodiments shown in the drawings, with
Upper is only the preferred embodiment of the utility model, but the utility model is not to limit practical range shown in drawing, every according to this
Change made by the conception of utility model, or be revised as the equivalent embodiment of equivalent variations, still without departing from specification and diagram institute
When the spirit covered, it should be within the protection scope of the present utility model.
Claims (9)
1. a kind of truck drive shaft, which is characterized in that including：
Universal-joint fork, one end of the universal-joint fork are arranged bushing flange, axially through there is centre bore on the bushing flange
With the first eccentric orfice, the centre bore is located at the middle part of the bushing flange, and first eccentric orfice is distributed in and the center
On the circumference of the concyclic heart in hole；
Ring flange is arranged in one end of transmission shaft tube, the transmission shaft tube, is axially fixed on the ring flange and is provided with central shaft,
And through there is the second eccentric orfice, second eccentric orfice be distributed in on the circumference of the concyclic heart of the central shaft；The central shaft
It is inserted into the centre bore, and can be moved along the axial direction of the centre bore；
One end of eccentric shaft, the eccentric shaft is fixed in first eccentric orfice, and the other end prolongs across second eccentric orfice
It extends in the transmission shaft tube；And the eccentric shaft can be moved along the axial direction of the transmission shaft tube.
2. truck drive shaft according to claim 1, which is characterized in that offer holding tank and axis on the universal-joint fork
To through-hole；
The bushing flange includes body part and connector sleeve, and the connector sleeve is fixedly connected with the body part, and along the company
Female connector extends to the direction far from the body part；
The body part is embedded in the holding tank, and the connector sleeve extends into the axially extending bore.
3. truck drive shaft according to claim 1, which is characterized in that be equipped with eccentric lining in second eccentric orfice
Set, the eccentric bush is set on the eccentric shaft, and with the eccentric shaft clearance fit.
4. truck drive shaft according to claim 1, which is characterized in that further include protective case, one end of the protective case
It is sheathed on one end that the universal-joint fork is equipped with the bushing flange, the other end is sheathed on the transmission shaft tube and is equipped with the flange
One end of disk.
5. truck drive shaft according to claim 4, which is characterized in that it is first annular to be provided with two on the universal-joint fork
Limit protrusion, the protective case are provided with the first limiting section close to one end of the universal-joint fork, and first limiting section is two
It is moved between the first annular limit protrusion；
Two second annular protrusions are provided on the transmission shaft tube, the one end of the protective case far from the universal-joint fork is provided with
Second limiting section, the second limiting section move between two second annular protrusions.
6. truck drive shaft according to claim 1, which is characterized in that ball head column is provided on the eccentric shaft, it is described
Ball head column is inserted in across first eccentric orfice in the universal-joint fork.
7. truck drive shaft according to any one of claim 1 to 6, which is characterized in that the number of first eccentric orfice
Amount is three, and three first eccentric orfices are between any two at 120 degree of angles.
8. truck drive shaft according to claim 7, which is characterized in that the quantity of second eccentric orfice is three, and
Three second eccentric orfices are between any two at 120 degree of angles.
9. truck drive shaft according to claim 8, which is characterized in that the quantity of the eccentric shaft is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820253083.9U CN207906310U (en) | 2018-02-12 | 2018-02-12 | Truck drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820253083.9U CN207906310U (en) | 2018-02-12 | 2018-02-12 | Truck drive shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906310U true CN207906310U (en) | 2018-09-25 |
Family
ID=63559967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820253083.9U Expired - Fee Related CN207906310U (en) | 2018-02-12 | 2018-02-12 | Truck drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803361A (en) * | 2021-11-17 | 2021-12-17 | 杭州寰瀛科技有限公司 | New energy automobile reinforcing formula transmission shaft |
| CN115013451A (en) * | 2022-06-27 | 2022-09-06 | 诸暨市双普机械有限公司 | Universal coupling for seat type troweling machine |
-
2018
- 2018-02-12 CN CN201820253083.9U patent/CN207906310U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803361A (en) * | 2021-11-17 | 2021-12-17 | 杭州寰瀛科技有限公司 | New energy automobile reinforcing formula transmission shaft |
| CN115013451A (en) * | 2022-06-27 | 2022-09-06 | 诸暨市双普机械有限公司 | Universal coupling for seat type troweling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 |