CN205078677U - A shock absorber for car transmission shaft - Google Patents
A shock absorber for car transmission shaft Download PDFInfo
- Publication number
- CN205078677U CN205078677U CN201520837219.7U CN201520837219U CN205078677U CN 205078677 U CN205078677 U CN 205078677U CN 201520837219 U CN201520837219 U CN 201520837219U CN 205078677 U CN205078677 U CN 205078677U
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- CN
- China
- Prior art keywords
- iron core
- vibration damper
- annular boss
- tubulose iron
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a shock absorber for car transmission shaft, relates to automobile transmission shaft technical field, and it includes rubber sleeve and tubulose iron core, has a cavity in the rubber sleeve, and the lateral wall middle part of rubber sleeve has an annular boss, and the tubulose iron core inlays to be established in annular boss, and a plurality of recesses have been offered respectively to two terminal surfaces of annular boss, a plurality of radial hole have been seted up to the lateral wall of tubulose iron core, and a plurality of axially extending bore have been seted up to the terminal surface of tubulose iron core, and radial hole and axially extending bore intussuseption are filled with rubber. The utility model discloses reduce manufacturing cost, effectively stopped the separation hidden danger of tubulose iron core with the rubber sleeve simultaneously, guaranteed good damping effect.
Description
Technical field
The utility model relates to truck drive shaft technical field, is specifically a kind of vibration damper for truck drive shaft.
Background technique
In the process of moving, the power system moment applies various exciting to transmission shaft to automobile, and the inertial force especially produced based on the imbalance of the reciprocal inertia force of motor and transmission shaft impacts.These excitations will cause transmission shaft vibration, and excitation energy is passed to vehicle body by outer universal joint, wheel hub, suspension by the vibration of transmission shaft, imports vibrational energy into cavity again after body outer skin excited resonance, makes the excited resonance of vehicle cavity, produce low frequency boom.
In order to avoid transmission shaft resonates the impact brought to vehicle performance, transmission shaft axle adds vibration damper.Shown in Fig. 1 and Fig. 2, traditional vibration damper comprises rubber bush 1 and tubulose iron core 2, has a cavity 11 in described rubber bush 1, has an annular boss 12 in the middle part of the sidewall of rubber bush 1, and described tubulose iron core 2 is embedded in annular boss 12.The vibration frequency of above-mentioned absorber designing equals transmission shaft first natural frequency, during automobile running, the transmission shaft vibrational energy overwhelming majority will by shock absorber, due to energy conservation, the vibration of transmission shaft itself will significantly reduce, thus effectively reduce the vibrational energy being passed to vehicle body, achieve the object reducing vehicle cavity low frequency boom.
But the first natural frequency due to the transmission shaft of different automobile types is unequal, produce how many money vehicle, just need the vibration damper being equipped with corresponding number, so every a vibration damper all wants independent die sinking, and cost of production is quite high.On the other hand, existing vibration damper adopts vulcanization rubber bush 1 and tubulose iron core 2 to be bonded together.Manufacturing process's process of existing vibration damper is: tubulose iron core 2 machining is shaping → and tubulose iron core 2 surface treatment (as sandblasting etc.) → tubulose iron core 2 removing surfaces → tubulose iron core 2 surface brush coating adhesive → sulfidization molding.Before sulfuration tubulose iron core 2 need brush tackiness agent, if adhesive failure or tubulose iron core 2 bonding with rubber bush 1 unreliable, tubulose iron core 2 can be caused to be separated with rubber bush 1, and then to affect effectiveness in vibration suppression.
Model utility content
For the defect existed in prior art, the purpose of this utility model is to provide a kind of vibration damper for truck drive shaft, reduces cost of production, and that has effectively stopped tubulose iron core and rubber bush is separated hidden danger simultaneously, ensure that good effectiveness in vibration suppression.
For reaching above object, the technological scheme that the utility model is taked is: a kind of vibration damper for truck drive shaft, comprise rubber bush and tubulose iron core, there is in described rubber bush a cavity, there is in the middle part of the sidewall of rubber bush an annular boss, described tubulose iron core is embedded in annular boss, and two end faces of described annular boss offer some grooves respectively; The sidewall of described tubulose iron core offers some radial direction through hole, and the end face of tubulose iron core offers some axial holes, and is filled with rubber in radial direction through hole and axial hole.
Further improvement is: each axial hole of described tubulose iron core is communicated with corresponding radial direction through hole.
Further improvement is: described radial direction through hole is rectangular.
Further improvement is: described axial hole is curved.
Further improvement is: each groove being positioned at the same end face of described annular boss, annularly the circumference of boss is uniformly distributed.
Further improvement is: two end faces of described annular boss offer 6 grooves respectively.
Further improvement is: described groove is fan-shaped.
Further improvement is: two end faces of described annular boss also offer positioning step respectively.
Further improvement is: described rubber bush, annular boss and tubulose iron core are positioned at the same axis line.
Further improvement is: the diameter in the middle part of described cavity is greater than the diameter at cavity two ends.
The beneficial effects of the utility model are:
1, in the utility model, groove is offered respectively at two end faces of annular boss, because the vibration frequency of vibration damper is relevant (as formula with himself rigidity k value and quality m value
shown in, rigidity k value is larger, and vibration frequency is larger; Quality m value is larger, vibration frequency is less), the degree of depth of groove can be adjusted flexibly to realize the adjustment of rigidity k value during production, and the change of quality m value is little, the vibration frequency of vibration damper can be controlled so easily in the value range expected, same secondary mould for the production of the vibration damper of different vibration frequency, can effectively reduce cost of production by repairing a die.
2, in the utility model, tubulose iron core offers some radial direction through hole and some axial holes, and be filled with rubber in radial direction through hole and axial hole, rubber and tubulose iron core is made to form a firmly entirety, avoid, because adhesive failure or tubulose iron core and rubber bush are bonding unreliable and cause tubulose iron core to be separated with rubber bush, ensureing that vibration damper effectively can reduce the abnormal vibrations of truck drive shaft.
3, in the utility model, each groove of the same end face of annular boss, annularly the circumference of boss is uniformly distributed, and not only processing and fabricating is easy, and can not affect the performance of vibration damper.
4, the utility model is simple for structure compact, is convenient to integrated, standardized designs manufacture, is conducive to reducing installing space.
5, when the utility model manufactures, in sulfidation, need not tackiness agent be brushed, not need sandblasting, save manufacturing process, improve manufacturing efficiency; Simultaneously because must not tackiness agent be used, avoid the health hazards of operative employee, it also avoid the pollution of environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional vibration damper in background technique;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is the structural representation for the vibration damper of truck drive shaft in the utility model embodiment;
Fig. 4 be in Fig. 3 B-B to sectional view;
Fig. 5 is the structural representation of tubulose iron core in the utility model embodiment.
Reference character:
1-rubber bush; 11-cavity; 12-annular boss; 13-groove; 14-positioning step;
2-tubulose iron core; 21-radial direction through hole; 22-axial hole.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Shown in Fig. 3 and Fig. 4, the utility model embodiment provides a kind of vibration damper for truck drive shaft, comprise rubber bush 1 and tubulose iron core 2, there is in rubber bush 1 cavity 11, concrete, rubber bush 1, annular boss 12 and tubulose iron core 2 are positioned at the same axis line, and the diameter in the middle part of cavity 11 is greater than the diameter at cavity 11 two ends.Have an annular boss 12 in the middle part of the sidewall of rubber bush 1, tubulose iron core 2 is embedded in annular boss 12, and two end faces of annular boss 12 offer some grooves 13 respectively; Concrete, be positioned at each groove 13 of the same end face of annular boss 12, annularly the circumference of boss 12 is uniformly distributed.Wherein, two end faces of annular boss 12 offer 6 grooves 13 respectively, and groove 13 is in fan-shaped.The degree of depth of groove 13 can be adjusted flexibly to realize the adjustment of rigidity k value during production, and the change of quality m value is little, the vibration frequency of vibration damper can be controlled so easily in the value range expected, same secondary mould for the production of the vibration damper of different vibration frequency, can effectively reduce cost of production by repairing a die.
Preferably, two end faces of annular boss 12 also offer positioning step 14 respectively, when this positioning step 14 is for sulfuration, position tubulose iron core 2, improve production precision.
Shown in Figure 5, the sidewall of tubulose iron core 2 offers some radial direction through hole 21, and the end face of tubulose iron core 2 offers some axial holes 22, and is filled with rubber in radial direction through hole 21 and axial hole 22.Each axial hole 22 of tubulose iron core 2 is communicated with corresponding radial direction through hole 21.Preferably, radial direction through hole 21 is rectangular, adds tubulose iron core 2 and the rubber filling amount of rubber bush 1 radial direction, improves firmness.Preferably, axial hole 22 is curved, adds tubulose iron core 2 and the rubber filling amount of rubber bush 1 axis, improves firmness.Avoid, because adhesive failure or tubulose iron core 2 and rubber bush 1 are bonding unreliable and cause tubulose iron core 2 to be separated with rubber bush 1, ensureing that vibration damper effectively can reduce the abnormal vibrations of truck drive shaft.
Manufacturing process's process of the utility model vibration damper is: tubulose iron core 2 machining is shaping → and tubulose iron core 2 removing surfaces → sulfidization molding.
As can be seen from above-mentioned manufacturing process process relatively, manufacturing process of the present utility model process decreases two procedures compared to prior art, accelerates manufacture rhythm.Tackiness agent can affect health usually, and can produce certain environmental pollution.After adopting the utility model, after eliminating tackiness agent brushing operation, stop this negative factor completely.
The utility model is not only confined to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but any change is done in its shape or structure; every have identical with the utility model or akin technological scheme, all within its protection domain.
Claims (10)
1. the vibration damper for truck drive shaft, comprise rubber bush (1) and tubulose iron core (2), there is in described rubber bush (1) cavity (11), there is in the middle part of the sidewall of rubber bush (1) annular boss (12), described tubulose iron core (2) is embedded in annular boss (12), it is characterized in that: two end faces of described annular boss (12) offer some grooves (13) respectively; The sidewall of described tubulose iron core (2) offers some radial direction through hole (21), the end face of tubulose iron core (2) offers some axial holes (22), and is filled with rubber in radial direction through hole (21) and axial hole (22).
2. the vibration damper for truck drive shaft according to claim 1, is characterized in that: each axial hole (22) of described tubulose iron core (2) is communicated with corresponding radial direction through hole (21).
3. the vibration damper for truck drive shaft according to claim 1, is characterized in that: described radial direction through hole (21) is rectangular.
4. the vibration damper for truck drive shaft according to claim 1, is characterized in that: described axial hole (22) is curved.
5. the vibration damper for truck drive shaft according to claim 1, is characterized in that: each groove (13) being positioned at described annular boss (12) same end face, annularly the circumference of boss (12) is uniformly distributed.
6. the vibration damper for truck drive shaft according to claim 1, is characterized in that: two end faces of described annular boss (12) offer 6 grooves (13) respectively.
7. the vibration damper for truck drive shaft according to claim 1, is characterized in that: described groove (13) is in fan-shaped.
8. the vibration damper for truck drive shaft according to claim 1, is characterized in that: two end faces of described annular boss (12) also offer positioning step (14) respectively.
9. the vibration damper for truck drive shaft according to claim 1, is characterized in that: described rubber bush (1), annular boss (12) and tubulose iron core (2) are positioned at the same axis line.
10. the vibration damper for truck drive shaft according to claim 1, is characterized in that: the diameter at described cavity (11) middle part is greater than the diameter at cavity (11) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837219.7U CN205078677U (en) | 2015-10-27 | 2015-10-27 | A shock absorber for car transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837219.7U CN205078677U (en) | 2015-10-27 | 2015-10-27 | A shock absorber for car transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078677U true CN205078677U (en) | 2016-03-09 |
Family
ID=55431089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520837219.7U Expired - Fee Related CN205078677U (en) | 2015-10-27 | 2015-10-27 | A shock absorber for car transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679138A (en) * | 2018-05-30 | 2018-10-19 | 浙江零跑科技有限公司 | A kind of vibration absorber for automobile transmission shaft |
-
2015
- 2015-10-27 CN CN201520837219.7U patent/CN205078677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679138A (en) * | 2018-05-30 | 2018-10-19 | 浙江零跑科技有限公司 | A kind of vibration absorber for automobile transmission shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160309 Termination date: 20171027 |