CN209012312U - Variable-stiffness torsion bar spring for automobile - Google Patents
Variable-stiffness torsion bar spring for automobile Download PDFInfo
- Publication number
- CN209012312U CN209012312U CN201821745948.XU CN201821745948U CN209012312U CN 209012312 U CN209012312 U CN 209012312U CN 201821745948 U CN201821745948 U CN 201821745948U CN 209012312 U CN209012312 U CN 209012312U
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- China
- Prior art keywords
- torsion bar
- internal layer
- layer torsion
- outer layer
- spring
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- 239000000725 suspension Substances 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 239000004677 Nylon Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a variable stiffness automobile torsion bar spring, which comprises an inner torsion bar, an outer torsion bar and a variable stiffness control mechanism, wherein the inner torsion bar is of a solid shaft structure, the outer torsion bar is of a hollow round tube structure, the outer torsion bar is sleeved outside the inner torsion bar, the inner torsion bar passes through the outer torsion bar, one end of the outer torsion bar is in threaded connection with the inner torsion bar, the other end of the outer torsion bar is in sliding connection with the inner torsion bar, both ends of the inner torsion bar are respectively connected with a suspension swing arm and an automobile body through a spline, the variable stiffness control mechanism comprises a positioning key and a spiral spring, the positioning key is arranged at one end of the inner torsion bar, the number of the positioning key is two, the spiral spring is arranged at one end of the outer torsion bar, the two positioning keys which are oppositely arranged enclose, a gap is reserved between the positioning key and the spiral spring, and the positioning key is contacted with the spiral spring and tightly pressed when the vehicle is in a full-load state. The utility model discloses a reduce the rigidity of initial torsion bar, improved whole car travelling comfort.
Description
Technical field
The utility model belongs to automobile torsion bar spring technical field, more particularly, to a kind of variation rigidity automobile torsion bar spring.
Background technique
Torsion-bar spring itself is a bar made of spring steel, it is that one be processed by alloy spring steel has bullet
The torsion bar of property, one end are fixed on vehicle frame, and one end is fixed in suspension.When wheel hop, the strength of spring is transmitted to torsion bar,
Torsion bar deforms, and absorbs energy.
Torsion-bar spring torsion bar section can be rectangle, tubular, piece shape, and both ends shape can be made spline, rectangular, hexagon
Or cylinder with plane etc., so that one end is fixed on vehicle frame, the other end is connected by swing arm with wheel.Work as wheel hop
When, swing arm just around pull rod axis oscillating, makes torsion bar generate elasticity of torsion deformation, and torsional deformation plays buffer function, guarantees vehicle
It takes turns and is contacted with the elasticity of vehicle frame.The advantages of torsion-bar spring is that structure is simple, occupied space very little, is suitable for kart, disadvantage
It is limitation of the rigidity by torsion bar length, not soft enough, riding comfort is undesirable.
It is therefore desirable to design a kind of variation rigidity automobile torsion bar spring, the comfort of Lai Tigao vehicle.
Summary of the invention
In view of this, the utility model is directed to a kind of variation rigidity automobile torsion bar spring, make under vehicle light condition
With the lower one section of torsion-bar spring characteristic of rigidity, under vehicle full load condition, using the higher one section of torsion-bar spring characteristic of rigidity,
By reducing the rigidity of initial torsion bar, achieve the purpose that improve vehicle comfort.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of variation rigidity automobile torsion bar spring, including internal layer torsion bar, outer layer torsion bar and variable rigidity control mechanism, described is interior
Layer torsion bar is solid axle construction, and the outer layer torsion bar is hollow circular-tube structure, and the outer layer torsion bar is set in internal layer torsion bar
Outside, the internal layer torsion bar is arranged across outer layer torsion bar, and one end of the outer layer torsion bar is threadedly coupled with internal layer torsion bar,
The other end of the outer layer torsion bar is slidably connected with internal layer torsion bar, the internal layer torsion bar both ends pass through a spline respectively with
Suspension swing arm is connected with vehicle body, and the variable rigidity control mechanism includes positioning key and helical spring, the positioning key setting
Internal layer torsion bar connection suspension swing arm one end, the positioning key totally two, and along the radial symmetric of internal layer torsion bar be distributed,
The one end of outer layer torsion bar being slidably connected with internal layer torsion bar is arranged in the helical spring, and two positioning keys being oppositely arranged enclose
At the receiving area of helical spring, under vehicle light condition, there are gap, vehicle full load conditions between positioning key and helical spring
Under, positioning key is contacted and is compressed with helical spring.
Further, between the positioning key and helical spring there are gap and it is empty fully loaded between suspension travel it is opposite
It answers, generally 4-8mm, specially 5mm.
Further, the helical spring is fixed on the extension of outer layer torsion bar along upper, and helical spring is extended along being divided into
Equal-sized two sections, every section of helical spring is with the positioning key of respective side apart from identical.
Further, it is slidably connected between internal layer torsion bar middle part in the middle part of the outer layer torsion bar, specific structure are as follows: described
The gap that 3mm is reserved between in the middle part of internal layer torsion bar and in the middle part of outer layer torsion bar coats one layer of 3mm thickness in internal layer torsion bar middle part surface
Nylon coating.
Further, the other end of the outer layer torsion bar and the specific structure that internal layer torsion bar is slidably connected are realized are as follows: inside
Coating nylon coating on layer torsion bar, inside, outer layer torsion bar is when having relative motion, and outer layer torsion bar is contacted with nylon coating.
Further, one end of internal layer torsion bar is connect by spline with torsion bar adjusting bracket, and the torsion bar adjusting bracket is solid
It is scheduled on vehicle body.
Compared with the existing technology, a kind of variation rigidity automobile torsion bar spring described in the utility model has the advantage that
A kind of variation rigidity automobile torsion bar spring described in the utility model, the torsion-bar spring are not changing consolidating for torsion-bar spring
In the case where fixed rack and suspension other parts, using the different feature of empty fully loaded torsion bar stroke, in lost motion use compared with
Low torsion bar rigidity, suspension rate is lower at this time, and comfort is good；Under vehicle full load conditions, using the big region of torsion-bar spring rigidity,
Suspension rate improves at this time, and diminution moves up and down stroke.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is a kind of structural schematic diagram of variation rigidity automobile torsion bar spring described in the utility model embodiment；
Fig. 2 is the structural schematic diagram of variable rigidity control mechanism；
Fig. 3 is the interior views of variation rigidity automobile torsion bar spring；
Fig. 4 is the performance diagram of variation rigidity automobile torsion bar spring.
Description of symbols:
1- internal layer torsion bar, 2- outer layer torsion bar, 3- positioning key, 4- helical spring.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-Figure 3, a kind of variation rigidity automobile torsion bar spring, including internal layer torsion bar 1, outer layer torsion bar 2 and variation rigidity
Control mechanism, the internal layer torsion bar 1 are solid axle construction, and the outer layer torsion bar 2 is hollow circular-tube structure, the outer layer
Torsion bar 2 is set in the outside of internal layer torsion bar 1, and the internal layer torsion bar 1 is arranged across outer layer torsion bar 1, the outer layer torsion bar 1
One end is threadedly coupled with internal layer torsion bar 2, and the other end and the internal layer torsion bar 1 of the outer layer torsion bar 2 are slidably connected, and realizes that sliding connects
The specific structure connect are as follows: the coating nylon coating on internal layer torsion bar 1, inside, outer layer torsion bar is when having relative motion, outer layer torsion bar 2
It is contacted with nylon coating, by the lubricating action of nylon figure layer, reduces the noise and vibration that movement generates；The internal layer torsion bar
1 both ends pass through a spline and connect respectively with suspension swing arm and vehicle body, and the variable rigidity control mechanism includes positioning key 3 and spiral shell
Revolve spring 4, the positioning key 3 be arranged in internal layer torsion bar 1 connection suspension swing arm one end, the positioning key 3 totally two,
And be distributed along the radial symmetric of internal layer torsion bar 1, the helical spring 4 is arranged in sliding with internal layer torsion bar 1 for outer layer torsion bar 2 and connects
The one end connect, two positioning keys 3 being oppositely arranged surround the receiving area of helical spring 4, under vehicle light condition, positioning key 3 with
There are gap between helical spring 4, under vehicle full load condition, positioning key 3 is contacted and is compressed with helical spring 4.
Between positioning key 3 and helical spring 4 there are gap and it is empty fully loaded between suspension travel it is corresponding, generally 4-
8mm, specially 5mm.
Helical spring 4 is fixed on the extension of outer layer torsion bar 2 along upper, and helical spring 4 be extended it is equal-sized along being divided into
Two sections, every section of helical spring is with the positioning key 3 of respective side apart from identical.
2 middle part of outer layer torsion bar and internal layer torsion bar are slidably connected between 1 middle part, specific structure are as follows: in the internal layer torsion bar 1
The gap that 3mm is reserved between 2 middle part of portion and outer layer torsion bar, coats the nylon coating of one layer of 3mm thickness in 1 middle part surface of internal layer torsion bar
5, coating is coated in the intermediate ledge point of internal layer torsion bar, and inside, outer layer torsion bar is when having relative motion, and 2 internal layer of outer layer torsion bar exists
The movement of coating upper surface, does not contact with internal layer torsion bar 1, eliminates issuable opposite vibration between internal layer torsion bar 1 and outer layer torsion bar 2
It is dynamic, the generation of maximum pre- antinoise and vibration.
One end of internal layer torsion bar 1 is connect by spline with torsion bar adjusting bracket, and the torsion bar adjusting bracket is fixed on vehicle body
On.
The working principle of this variation rigidity automobile torsion bar spring are as follows:
When load is lower, suspension bears that load is small, and torsion-bar spring stress is smaller, and positioning key 3 and helical spring 4 be not at this time
Contact, only internal layer torsion bar 1 works torsion-bar spring, and torsion stiffness is lower, guarantees the comfort taken, due to inside and outside layer torsion bar
Between one end be to be threadedly coupled, this connection fixes one end between internal layer and outer layer, when the rotation of internal layer torsion bar 1, internal layer torsion bar 1
It is one piece of rotation with outer layer torsion bar 2, but when only internal layer torsion bar 1 rotates, bears torque, outer layer torsion bar 2 is because of other end
It is unlocked without by torque；In the case where vehicle is fully loaded, outer layer torsion bar 2 makes helical spring 4 and positioning key 3 with end of thread rotation
Contact, then the both ends of outer layer torsion bar 2 produce relative rotation, and outer layer torsion bar 2 generates torque, work of the helical spring 4 by torque
With starting to compress, inside and outside layer torsion bar generates torque together at this time, and the rigidity of torsion bar is that internal layer torsion bar 1 and outer layer torsion bar 2 are total at this time
The rigidity of same-action, rigidity is big, reduces the dynamic deflection of suspension, improves the comfort of vehicle.
As shown in figure 4, variation rigidity torsion-bar spring is linear rigidity, fixed in 1 independent role of initial stage internal layer torsion bar
During position key 3 contacts with helical spring 4 and is compressed to the limit, rigidity is curve increase, after helical spring 4 is pressed simultaneously, weight
Linear rigidity；
This torsion-bar spring feature different using empty fully loaded torsion bar stroke, under lost motion, torsion-bar spring groundwork
In I region of characteristic, suspension rate is lower at this time, and comfort is good；Under vehicle full load conditions, torsion-bar spring operates mainly in characteristic
II region, suspension rate improves at this time, and diminution moves up and down stroke.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of variation rigidity automobile torsion bar spring, it is characterised in that: including internal layer torsion bar (1), outer layer torsion bar (2) and variation rigidity control
Mechanism processed, the internal layer torsion bar (1) are solid axle construction, and the outer layer torsion bar (2) is hollow circular-tube structure, and described is outer
Layer torsion bar (2) is set in the outside of internal layer torsion bar (1), and the internal layer torsion bar (1) is arranged across outer layer torsion bar (2), described
One end of outer layer torsion bar (2) is threadedly coupled with internal layer torsion bar (1), the other end of the outer layer torsion bar (2) and internal layer torsion bar (1)
It is slidably connected, described internal layer torsion bar (1) both ends pass through a spline and connect respectively with suspension swing arm and vehicle body, and the change is rigid
Degree control mechanism includes positioning key (3) and helical spring (4), and the positioning key (3) setting is outstanding in the connection of internal layer torsion bar (1)
One end of frame swing arm, the positioning key (3) totally two, and be distributed along the radial symmetric of internal layer torsion bar (1), the spiral bullet
Spring (4) is arranged in the one end of outer layer torsion bar (2) being slidably connected with internal layer torsion bar (1), and two positioning keys (3) being oppositely arranged enclose
At the receiving area of helical spring (4), under vehicle light condition, there are gap, vehicles between positioning key (3) and helical spring (4)
Under full load condition, positioning key (3) is contacted and is compressed with helical spring (4).
2. a kind of variation rigidity automobile torsion bar spring according to claim 1, it is characterised in that: the positioning key (3) and spiral shell
Revolve between spring (4) there are gap and it is empty fully loaded between suspension travel it is corresponding, generally 4-8mm, specially 5mm.
3. a kind of variation rigidity automobile torsion bar spring according to claim 2, it is characterised in that: the helical spring (4) is solid
The extension of outer layer torsion bar (2) is scheduled on along upper, and helical spring (4) is extended along being divided into equal-sized two sections, every section of spiral bullet
Spring is with the positioning key (3) of respective side apart from identical.
4. a kind of variation rigidity automobile torsion bar spring according to claim 3, it is characterised in that: in the outer layer torsion bar (2)
It is slidably connected between in the middle part of portion and internal layer torsion bar (1), specific structure are as follows: at internal layer torsion bar (1) middle part and outer layer torsion bar (2)
The gap that 3mm is reserved between middle part coats the nylon coating (5) of one layer of 3mm thickness in internal layer torsion bar (1) middle part surface.
5. a kind of variation rigidity automobile torsion bar spring according to claim 4, it is characterised in that: realize the outer layer torsion bar
(2) specific structure that the other end and internal layer torsion bar (1) is slidably connected are as follows: the coating nylon coating on internal layer torsion bar (1),
When inside and outside layer torsion bar has relative motion, outer layer torsion bar (2) is contacted with nylon coating.
6. a kind of variation rigidity automobile torsion bar spring according to any one of claims 1-5, it is characterised in that: internal layer torsion bar
(1) one end is connect by spline with torsion bar adjusting bracket, and the torsion bar adjusting bracket is fixed on vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745948.XU CN209012312U (en) | 2018-10-26 | 2018-10-26 | Variable-stiffness torsion bar spring for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745948.XU CN209012312U (en) | 2018-10-26 | 2018-10-26 | Variable-stiffness torsion bar spring for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012312U true CN209012312U (en) | 2019-06-21 |
Family
ID=66840223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821745948.XU Expired - Fee Related CN209012312U (en) | 2018-10-26 | 2018-10-26 | Variable-stiffness torsion bar spring for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209012312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425240A (en) * | 2019-09-04 | 2019-11-08 | 浙江盘毂动力科技有限公司 | A kind of torsion-bar spring, suspension system and automobile |
| CN115416438A (en) * | 2022-08-17 | 2022-12-02 | 柳州五菱汽车工业有限公司 | Torsion beam |
-
2018
- 2018-10-26 CN CN201821745948.XU patent/CN209012312U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425240A (en) * | 2019-09-04 | 2019-11-08 | 浙江盘毂动力科技有限公司 | A kind of torsion-bar spring, suspension system and automobile |
| CN115416438A (en) * | 2022-08-17 | 2022-12-02 | 柳州五菱汽车工业有限公司 | Torsion beam |
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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: 20190621 Termination date: 20211026 |