CN220785888U - Steering transmission shaft of commercial vehicle - Google Patents
Steering transmission shaft of commercial vehicle Download PDFInfo
- Publication number
- CN220785888U CN220785888U CN202322652592.2U CN202322652592U CN220785888U CN 220785888 U CN220785888 U CN 220785888U CN 202322652592 U CN202322652592 U CN 202322652592U CN 220785888 U CN220785888 U CN 220785888U
- Authority
- CN
- China
- Prior art keywords
- yoke
- fork
- joint
- commercial vehicle
- drive shaft
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title abstract description 21
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims description 5
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a steering transmission shaft of a commercial vehicle, which comprises the following components: adjustment subassembly and two support yoke, adjustment subassembly includes: a first yoke, a middle yoke, and a second yoke; the two ends of the middle fork are respectively connected with the first fork and the second fork through needle roller bearings, and the first fork and the second fork are respectively connected with the two supporting fork through cross-shaped needle roller bearings. According to the utility model, the form of the friction pair is changed, namely, the first yoke, the middle yoke and the second yoke are adopted to form the adjusting assembly capable of realizing adjustment and expansion, so that the friction force can be effectively reduced, the structure is simple, the manufacturing cost is low, the radial clearance can be stably limited, and the problems of abnormal vibration noise and the like can be effectively reduced.
Description
Technical Field
The utility model relates to the technical field of transmission shafts, in particular to a steering transmission shaft of a commercial vehicle.
Background
Currently, the steering transmission shaft of the commercial vehicle mainly has two forms, namely a spline type and a ball type.
The spline type, namely, sliding friction is carried out between the spline shaft and the spline housing of the steering transmission shaft, and a nylon coating is adopted between the spline shaft and the spline housing, so that the material and the process requirements are high, the friction force is large, and the problems of increased friction force, abnormal noise and the like of the transmission shaft are easily caused if the coating is damaged due to friction after long-time working.
The ball type rolling device is characterized in that balls are placed between a shaft and a shaft sleeve, rolling friction is carried out between the shaft and the shaft sleeve in a small range, a large stroke is sliding friction, namely, the rolling-before-sliding mode is adopted to work, the expansion force can be relatively reduced, but the expansion force fluctuation can be generated when the stroke is slightly large, the hand feeling of a driver is affected seriously, in addition, the structure of the ball type transmission shaft is limited, the manufacturing cost is high, and the structure is complex.
Disclosure of Invention
In view of the above, the utility model provides a steering transmission shaft of a commercial vehicle, which solves the technical problems of vibration and abnormal sound caused by overlarge gap after durable wear due to overlarge telescopic resistance of the existing steering transmission shaft.
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The utility model adopts the following technical scheme:
there is provided a steering drive shaft for a commercial vehicle comprising: the adjusting assembly and the two support yoke are arranged between the two support yoke;
the adjustment assembly includes: a first yoke, a middle yoke, and a second yoke;
the two ends of the middle fork are respectively connected with the first fork and the second fork through needle bearings, and the first fork and the second fork are respectively connected with the two supporting forks through cross-shaped needle bearings.
Further, the support yoke includes: the device comprises a columnar main body part and a fork head, wherein the fork head is connected with a cross joint needle bearing, a screw hole is formed in the columnar main body part, and a locking bolt is arranged in the screw hole.
Further, the first yoke and the second yoke are composed of a yoke body and two fork-shaped parts, and the two fork-shaped parts are respectively arranged at two ends of the yoke body.
Further, one fork-shaped part is connected with the middle joint fork through the needle bearing, and the other fork-shaped part is connected with the supporting joint fork through the cross joint needle bearing.
Further, the intermediate yoke includes: the rod body and set up two sets of erection columns on the rod body, every erection column of group is by two symmetry sets up the erection column of rod body both sides is constituteed, the erection column through needle bearing with first festival fork the second festival fork is connected.
Further, a through hole for accommodating the mounting column is formed in the fork-shaped portion.
Further, the support yoke and the cross-shaped joint needle roller bearing are riveted with the first yoke; the first yoke, the needle roller bearing and the middle yoke are riveted; the middle joint fork, the needle roller bearing and the second joint fork are riveted; the second joint fork, the cross joint needle roller bearing and the supporting joint fork are riveted.
The utility model has the beneficial effects that: according to the utility model, the form of the friction pair is changed, namely, the first yoke, the middle yoke and the second yoke are adopted to form the adjusting assembly capable of realizing adjustment and expansion, so that the friction force can be effectively reduced, the structure is simple, the manufacturing cost is low, the radial clearance can be stably limited, and the problems of abnormal vibration noise and the like can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a steering drive shaft of a commercial vehicle in accordance with the present utility model;
FIG. 2 is a top view of a steering drive shaft of a commercial vehicle in accordance with the present utility model;
FIG. 3 is a schematic view of the structure of the support yoke of the present utility model;
FIG. 4 is a front view of a first fork of the present utility model;
FIG. 5 is a top view of a first yoke of the present utility model;
FIG. 6 is a front view of the intermediate yoke of the present utility model;
Fig. 7 is a top view of the intermediate yoke of the present utility model.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-7, in some illustrative embodiments, the present utility model provides a commercial vehicle steering drive shaft comprising: an adjustment assembly and two support yoke 1. The support yoke 1 is used for being connected with other structures of the vehicle and simultaneously used for supporting the adjusting assembly to rotate; the adjusting component is arranged between the two support yoke 1 and is used for realizing the rotation and telescopic functions of the steering transmission shaft.
The adjustment assembly includes: a first yoke 2, a middle yoke 3 and a second yoke 4.
The first yoke 2 and the second yoke 4 have the same structure and are positioned at two ends of the middle yoke 3, and specifically, two ends of the middle yoke 3 are respectively connected with the first yoke 2 and the second yoke 4 through needle bearings 5. The first yoke 2 and the second yoke 4 are respectively connected with the two support yokes 1 through a cross-shaped needle bearing 6.
When the steering transmission shaft works, the first yoke 2, the middle yoke 3 and the second yoke 4 are driven to rotate around the cross-shaped needle bearing 6 along with the axial movement of the supporting yoke 1. Simultaneously, first festival fork 2, middle festival fork 3 and second festival fork 4 realize the angle modulation through needle bearing 5, and when middle festival fork 3 rotated to the horizontality, steering transmission shaft length is elongated, and when the same principle was compressed, middle festival fork 3 was in vertical state, and steering transmission shaft shortened. The elongation and shortening processes are all rolling friction, and the transmission shaft lengths of different models can be met by adjusting the lengths of different sections, so that the length of the adjustable transmission shaft meets different vehicle types and different vehicle body heights, the adaptability is better, and the adjustment is easy.
As shown in fig. 3, the support yoke 1 includes: columnar body 101 and fork 102. The fork head 102 is connected with the cross joint needle bearing 6, a screw hole is formed in the columnar main body part 101, a locking bolt 7 is arranged in the screw hole, and the support joint fork 1 is connected with other structures of the vehicle through the locking bolt 7.
The first yoke 2 and the second yoke 4 have the same structure, and as shown in fig. 4-5, the first yoke 2 and the second yoke 4 are both composed of a yoke body 201 and two fork portions 202. The yoke body 201 and the fork portions 202 are integrally formed, and the two fork portions 202 are respectively disposed at two ends of the yoke body 201, and the two fork portions 202 are used for realizing connection with the support yoke 1 and the middle yoke 3. Of the two fork parts 202, one fork part is connected with the middle joint fork 3 through a needle bearing 5, and the other fork part 202 is connected with the support joint fork 1 through a cross joint needle bearing 6.
As shown in fig. 6 to 7, the intermediate yoke 3 includes: the rod body 301 and two groups of mounting posts are respectively used for being matched with the first yoke 2 and the second yoke 4. Two sets of mounting posts are located at two ends of the rod 301, each set of mounting posts has two mounting posts 302 therein, and the two mounting posts 302 are symmetrically disposed at two sides of the rod 301, i.e. the middle yoke 3 has four mounting posts 302 thereon. The mounting post 302 is connected to the first yoke 2 and the second yoke 4 by needle bearings 5. The fork parts 202 on the first yoke 2 and the second yoke 4 are provided with through holes 203 for accommodating the mounting posts 302.
The support yoke 1 and the cross-shaped yoke needle bearing 6 are riveted with the first yoke 2; the first yoke 2 and the needle roller bearing 5 are riveted with the middle yoke 3; the middle joint fork 3 and the needle roller bearing 5 are riveted with the second joint fork 4; the second joint fork 4 and the cross joint needle bearing 6 are riveted with the supporting joint fork 1. The application changes the existing steering transmission shaft assembly process into a full riveting structure, has smaller gap control, changes sliding friction into rolling friction, can reduce friction force, utilizes a needle bearing form as a revolute pair, improves radial reliability and durability, and basically eliminates vibration abnormal sound phenomenon. The structure is simple, the manufacturing cost is low, the length requirements of different steering transmission shafts are met through the length combination of the joint forks, and the number of the joint forks can be increased to meet the turning requirements of different vehicle bodies.
Compared with the traditional steering transmission shaft, the telescopic principle of the application is different, and particularly, by arranging a plurality of joint forks and assisting in connecting each joint fork by the needle roller bearing 5 and the cross joint needle roller bearing 6, the axial drawing force can be effectively reduced, and when the steering transmission shaft axially works, all strokes are rolling friction, so that the problem of overlarge gaps caused by durability can be effectively reduced, and further, the abnormal working noise is reduced.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (7)
1. A commercial vehicle steering drive shaft, comprising: the adjusting assembly and the two support yoke are arranged between the two support yoke;
the adjustment assembly includes: a first yoke, a middle yoke, and a second yoke;
the two ends of the middle fork are respectively connected with the first fork and the second fork through needle bearings, and the first fork and the second fork are respectively connected with the two supporting forks through cross-shaped needle bearings.
2. The commercial vehicle steering drive shaft of claim 1, wherein the support yoke comprises: the device comprises a columnar main body part and a fork head, wherein the fork head is connected with a cross joint needle bearing, a screw hole is formed in the columnar main body part, and a locking bolt is arranged in the screw hole.
3. The steering drive shaft of claim 2, wherein the first yoke and the second yoke are each composed of a yoke body and two fork portions, the two fork portions being disposed at both ends of the yoke body, respectively.
4. A commercial vehicle steering drive shaft according to claim 3, wherein one of the two prongs is connected to the intermediate yoke by the needle bearing and the other prong is connected to the support yoke by the cross-joint needle bearing.
5. The commercial vehicle steering drive shaft of claim 4, wherein the intermediate yoke comprises: the rod body and set up two sets of erection columns on the rod body, every erection column of group is by two symmetry sets up the erection column of rod body both sides is constituteed, the erection column through needle bearing with first festival fork the second festival fork is connected.
6. The steering drive shaft of claim 5, wherein the fork is formed with a through hole for receiving the mounting post.
7. The commercial vehicle steering drive shaft of claim 6, wherein the support yoke, the cross-joint needle bearing are riveted to the first yoke; the first yoke, the needle roller bearing and the middle yoke are riveted; the middle joint fork, the needle roller bearing and the second joint fork are riveted; the second joint fork, the cross joint needle roller bearing and the supporting joint fork are riveted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652592.2U CN220785888U (en) | 2023-09-28 | 2023-09-28 | Steering transmission shaft of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652592.2U CN220785888U (en) | 2023-09-28 | 2023-09-28 | Steering transmission shaft of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220785888U true CN220785888U (en) | 2024-04-16 |
Family
ID=90634269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322652592.2U Active CN220785888U (en) | 2023-09-28 | 2023-09-28 | Steering transmission shaft of commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220785888U (en) |
-
2023
- 2023-09-28 CN CN202322652592.2U patent/CN220785888U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102008003646A1 (en) | Hub joint unit for a vehicle | |
| CN106678189B (en) | Double vibration damping type non-centering constant angular velocity universal coupling | |
| CN106945712B (en) | Adjustable display control multifunctional operating device | |
| CN220785888U (en) | Steering transmission shaft of commercial vehicle | |
| CN102588543B (en) | Supporting structure of ball screw assembly | |
| JPWO2003064877A1 (en) | Cross shaft coupling | |
| CN100344893C (en) | Corner radial coupler | |
| CN203796781U (en) | Aligning cross universal shaft component for mounting horizontal-tail steering engine | |
| CN201496419U (en) | Constant-speed transmission shaft with telescopic middle shaft | |
| CN209304051U (en) | Torque gun in the assembling of exhaust phasers bolt | |
| US4716644A (en) | Unit comprising a shaft and rotatable body in rolling contact, serving as roller or wheel in earth-moving vehicles, and relative method of assembly | |
| CN206874769U (en) | Sleeve post rod type ball screw assembly, | |
| CN2406895Y (en) | Automotive powdered steering rotary valve with force fit ball | |
| CN220886866U (en) | Screw nut lifting machine | |
| CN211202783U (en) | Integral ball spline | |
| CN100554713C (en) | The axial high strength bolt type spacing cross bag assembly structure | |
| CN205600393U (en) | Transmission shaft structure and vertical machining center who has this transmission shaft structure | |
| KR19980079410A (en) | Power steering device | |
| CN219432197U (en) | Fixing structure easy to center piston rod of hydraulic cylinder with trunnion of valve in cross direction | |
| CN219510063U (en) | Device for eliminating gap between dampers | |
| CN220975438U (en) | Mechanical synchronizer of rolling mechanism | |
| CN113847399B (en) | Double-thread rolling slide bar type reciprocating motion mechanism | |
| CN114673736B (en) | Large-swing-angle large-slippage assembled transmission shaft assembly and manufacturing method thereof | |
| CN219366632U (en) | Loader yoke with anti-drop structure | |
| CN220060410U (en) | Screw transmission mechanism with anti-backlash function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |