CN206988318U - A kind of universal joint for power transmission shaft - Google Patents
A kind of universal joint for power transmission shaft Download PDFInfo
- Publication number
- CN206988318U CN206988318U CN201720950777.3U CN201720950777U CN206988318U CN 206988318 U CN206988318 U CN 206988318U CN 201720950777 U CN201720950777 U CN 201720950777U CN 206988318 U CN206988318 U CN 206988318U
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- matrix block
- hole
- major axis
- universal
- power transmission
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Abstract
Truck drive shaft accessories field is the utility model is related to, discloses a kind of universal joint for power transmission shaft.Including two universal-joint forks and split type cross axle, cross includes matrix block, major axis and two short axles, the through hole of square is offered between two relative sides in matrix block, offer the first screwed hole connected with the through hole respectively on two other relative side of matrix block, the middle part of major axis coordinates with through hole installs, the both ends of major axis are the cylinder for the outside for being arranged on matrix block, and two short axles include axle portion and the threaded joints fixed by the first screwed hole and matrix block.Cross axle of the present utility model can be taken out two short axles by screwdriver layer dismantling device from the axis hole on corresponding universal-joint fork respectively, major axis is extracted out by the axis hole on corresponding universal-joint fork and can be taken out matrix block again, dismount very convenient, avoid and universal joint is tapped by hammer with strength in the prior art, improve maintenance efficiency.
Description
Technical field
It the utility model is related to truck drive shaft accessories field, specifically a kind of universal joint for power transmission shaft.
Background technology
Truck drive shaft is the important component of passing power in automotive transmission, and its effect is and gearbox, drive axle
The power of engine is passed into wheel together, automobile is produced driving force, is typically made up of central siphon, telescopic and universal joint,
Wherein universal joint is the part for realizing varied angle power transmission, is power transmission shaft for needing to change the position for being driven axis direction
" joint " part.The damage of shaft universal-joint, abrasion, looseness etc. can all cause automobile to produce abnormal sound under steam and shake
It is dynamic, the damage of associated components can be caused when serious.If chassis occurs in running car " drone " sound, and the speed of service is higher,
Sound is bigger, and this is often as universal-joint cross trunnion serious wear, and looseness occurs in universal joint, at this moment must change universal joint ten
Word axle.The work for changing universal-joint cross trunnion most critical is to take universal joint from common practice from driving shaft flange fork
It is manually to tap universal joint with strength with iron hammer, disengages it from power transmission shaft, is combined yet with universal joint on driving shaft flange fork
Closely, the method tapped with iron hammer is cumbersome and time consuming, and is difficult smoothly to remove universal joint.
In addition, the cross axle in traditional truck drive shaft is solid forging, there is forging in the cross axle of this solid forging
Make defect, when vehicle when adverse circumstances are run because the presence of forging defect is easily caused cross axle fracture.Four of cross axle
Axle position precision in processing is not easy to ensure, so as to influence the quality of truck drive shaft.
Utility model content
The utility model aims to provide a kind of sound construction, is easy to dismount and what precision was good is used for the universal of power transmission shaft
Section.
In order to solve the above technical problems, the technical solution adopted in the utility model is：It is a kind of to be used for the universal of power transmission shaft
Section, including two universal-joint forks and the cross axle for being hinged two universal-joint forks, the cross axle be it is split type, including one
Individual matrix block and cooperation are arranged on a root long axle and two short axles in matrix block, and described matrix block is square, in matrix
The through hole of square is offered on block between two relative sides, on two other relative side of matrix block respectively
The first screwed hole connected with the through hole is offered, the middle part of the major axis is the square and and through hole of corresponding through hole
Coordinate installation, the second screwed hole being respectively communicated with the first screwed hole of matrix block both sides is further opened with the middle part of major axis, it is long
The both ends of axle be arranged on matrix block outside and diameter no more than the cylinder of its middle part length of side, two short axles include
Axle portion and the threaded joints for coordinating installation with matrix block and major axis respectively by the first screwed hole and the second screwed hole.
Preferably, the major axis is fixed by alignment pin and matrix block, between the top surface of matrix block and bottom surface and long
Corresponding position offers pin-and-hole respectively on axle.
Preferably, the major axis is fixed by two alignment pins with matrix block, major axis be provided with corresponding two pin-and-holes and
Two pin-and-holes are located at the both sides of the second screwed hole respectively.
Preferably, the alignment pin is spring catch.
Preferably, the axle portion of the both ends of the major axis and two short axles is arranged with for being opened up on universal-joint fork
The needle bearing that is rotatably assorted of axis hole.
Preferably, the race diameter of the needle bearing is not less than the length of side of matrix block.
Preferably, the axle portion radius of the short axle is more than the radius of threaded joints.
Preferably, the described one end of short axle axle portion away from matrix block is provided with the groove coordinated with dismantling device.
Beneficial effect
The utility model is simple in construction, it is easy to accomplish, it is mutual respectively between the matrix block, major axis and short axle in cross axle
Connection, the intensity of cross axle is enhanced, avoid producing fracture；Major axis and short axle are respectively cooperating with being arranged in matrix block pacifies accordingly
Fill in hole, precision of the present utility model is increased substantially relative to the cross axle of forged production in the prior art, so as to carry
The high reliability and precision of truck drive shaft.
Cross axle of the present utility model is split type, after the needle bearing in short axle is removed, can pass through screwdriver layer
Dismantling device takes out two short axles from the axis hole on corresponding universal-joint fork respectively, then major axis is passed through into corresponding universal-joint fork
On axis hole extract out matrix block can be taken out, dismounting it is very convenient, avoid in the prior art by hammer tap with strength it is universal
Section, disengages it from, uses manpower and material resources sparingly, and improves maintenance efficiency.
Brief description of the drawings
Fig. 1 is the configuration schematic diagram of cross shaft portion of the present utility model；
Fig. 2 is assembling schematic diagram of the present utility model；
Marked in figure：1st, universal-joint fork, 2, matrix block, 201, through hole, the 202, first screwed hole, 3, major axis, 301,
One screwed hole, 4, short axle, 401, axle portion, 402, threaded joints, 403, groove, 5, alignment pin, 6, pin-and-hole, 7, needle bearing.
Embodiment
As shown in Figures 1 and 2, a kind of universal joint for power transmission shaft of the present utility model, including two universal-joint forks 1 with
And for being hinged the cross axle of two universal-joint forks 1, four shaft ends of cross axle are arranged with for being opened on universal-joint fork 1
If the needle bearing 7 that is rotatably assorted of axis hole.
Repaired for the ease of the dismounting of cross axle, cross axle of the present utility model to be split type, including a matrix block 2 with
And coordinate the root long axle 3 being arranged in matrix block 2 and two short axles 4.Matrix block 2 is that square is block, two in matrix block 2
Offer the through hole 201 of square between individual relative side, the middle part of major axis 3 be the square of corresponding through hole 201 simultaneously
Installed with the close fit of through hole 201, the both ends of major axis 3 are located at for the cylindrical of the cooperation installation of needle bearing 7 and respectively matrix
The outside of block 2, its small middle part length of side of diameter of the wherein cylindrical part at the both ends of major axis 3, makes major axis 3 can be entirely through through hole
201 realize dismounting in matrix block 2.
Offer the first screw thread connected with the through hole 201 respectively on two other relative side of matrix block 2
Hole 202, the second screw thread being respectively communicated with the first screwed hole 202 of the both sides of matrix block 2 is further opened with the middle part of major axis 3.This
Two short axles 4 of utility model include axle portion 5 and threaded joints 402.Threaded joints 402 successively with the first screwed hole
202 and second screwed hole 301 coordinate installation, so as to which short axle 4 and matrix block 2 and major axis 3 are connected into an entirety, increase
The intensity of cross axle, improve the service life of power transmission shaft.The radius of axle portion 5 of short axle 4 is more than the radius of threaded joints 402,
Portion 402 is connected through a screw thread in short axle 4 and after matrix block 2 and the fixation of major axis 3, the axle portion 5 of short axle 4 is pressed in pair of matrix block 2
Answer on side, the stress of cross axle in transmission process can be shared by the mutual pressure between axle portion 5 and matrix side, makes this reality
With new more firm and durable.Similar, the race diameter of needle bearing 7 of the present utility model is not less than the length of side of matrix block 2,
The stress of cross axle can be equally shared by the outer ring of needle bearing 7, extends service life of the present utility model.In short axle 4
The one end of axle portion 401 away from matrix block is provided with groove 403, and the groove 403 may be configured as yi word pattern or cross, by with screw
The dismantling devices such as knife easily can split out axis hole of the short axle 4 from by corresponding universal-joint fork 1 from matrix block 2.
In the present embodiment, major axis 3 is fixed by the alignment pin 5 of two spring pin with matrix block 2, on the top of matrix block 2
Corresponding position offers pin-and-hole 6 respectively between face and bottom surface and on major axis 3, major axis 3 be provided with corresponding two pin-and-holes 6 and
Two pin-and-holes 6 are located at the both sides of the second screwed hole 301 respectively.Alignment pin 5 is except can further consolidate major axis 3 and matrix block 2
Beyond fixed, the first screwed hole 202 that can also aid in adjusting in matrix block 2 correlates with the phase of the second screwed hole 301 on major axis 3, i.e.,
As long as being arranged to alignment pin 5 when can be also cross pin-and-hole 6 in matrix block 2 and major axis 3, the first screwed hole 202 is i.e. and second
The design size that the phase of screwed hole 301 correlates, so as to realize the dismounting of short axle 4 more easily and fast.
Claims (8)
1. a kind of universal joint for power transmission shaft, including two universal-joint forks（1）And for being hinged two universal-joint forks（1）'s
Cross axle, it is characterised in that：The cross axle is split type, including a matrix block（2）And coordinate and be arranged on matrix block（2）
On a root long axle（3）With two short axles（4）, described matrix block（2）For square, in matrix block（2）Upper two relative sides
The through hole of square is offered between face（201）, in matrix block（2）Two other relative side on offer respectively with
The through hole（201）First screwed hole of connection（202）, the major axis（3）Middle part be corresponding through hole（201）Square
And and through hole（201）Coordinate installation, in major axis（3）Middle part be further opened with and matrix block（2）First screwed hole of both sides
（202）The second screwed hole being respectively communicated with（301）, major axis（3）Both ends to be arranged on matrix block（2）Outside and diameter it is little
In the cylinder of its middle part length of side, two short axles（4）Include axle portion（401）And pass through the first screwed hole（202）With
Second screwed hole（301）Respectively with matrix block（2）And major axis（3）Coordinate the threaded joints of installation（402）.
A kind of 2. universal joint for power transmission shaft according to claim 1, it is characterised in that：The major axis（3）By fixed
Position pin（5）With matrix block（2）It is fixed, in matrix block（2）Top surface and bottom surface between and major axis（3）Upper corresponding position difference
Offer pin-and-hole（6）.
A kind of 3. universal joint for power transmission shaft according to claim 2, it is characterised in that：The major axis（3）Pass through two
Root alignment pin（5）With matrix block（2）It is fixed, major axis（3）It is provided with corresponding two pin-and-holes（6）And two pin-and-holes（6）Position respectively
In the second screwed hole（301）Both sides.
A kind of 4. universal joint for power transmission shaft according to claim 2, it is characterised in that：The alignment pin（5）For bullet
Spring pin.
A kind of 5. universal joint for power transmission shaft according to claim 1, it is characterised in that：The major axis（3）Both ends
And two short axles（4）Axle portion（401）It is arranged with and is used for and universal-joint fork（1）On the rolling that is rotatably assorted of the axis hole that is opened up
Needle bearing（7）.
A kind of 6. universal joint for power transmission shaft according to claim 5, it is characterised in that：The needle bearing（7）'s
Race diameter is not less than matrix block（2）The length of side.
A kind of 7. universal joint for power transmission shaft according to claim 1, it is characterised in that：The short axle（4）Axle portion
（401）Radius is more than threaded joints（402）Radius.
A kind of 8. universal joint for power transmission shaft according to claim 1, it is characterised in that：The short axle（4）Axle portion is remote
From matrix block one end be provided with dismantling device coordinate groove（403）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950777.3U CN206988318U (en) | 2017-08-01 | 2017-08-01 | A kind of universal joint for power transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950777.3U CN206988318U (en) | 2017-08-01 | 2017-08-01 | A kind of universal joint for power transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988318U true CN206988318U (en) | 2018-02-09 |
Family
ID=61418424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720950777.3U Active CN206988318U (en) | 2017-08-01 | 2017-08-01 | A kind of universal joint for power transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165513A (en) * | 2021-11-16 | 2022-03-11 | 北京航天控制仪器研究所 | Novel hook hinge |
-
2017
- 2017-08-01 CN CN201720950777.3U patent/CN206988318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165513A (en) * | 2021-11-16 | 2022-03-11 | 北京航天控制仪器研究所 | Novel hook hinge |
| CN114165513B (en) * | 2021-11-16 | 2023-02-03 | 航天时代(青岛)海洋装备科技发展有限公司 | Novel hook hinge |
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