CN203223514U - Outer-circulation type oil damper - Google Patents
Outer-circulation type oil damper Download PDFInfo
- Publication number
- CN203223514U CN203223514U CN 201320233923 CN201320233923U CN203223514U CN 203223514 U CN203223514 U CN 203223514U CN 201320233923 CN201320233923 CN 201320233923 CN 201320233923 U CN201320233923 U CN 201320233923U CN 203223514 U CN203223514 U CN 203223514U
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- throttling
- piston
- damper
- inner core
- urceolus
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Abstract
The utility model discloses an outer-circulation type oil damper which comprises a radiating outer cylinder, a throttling inner cylinder and a piston assembly. The throttling inner cylinder is arranged inside the radiating outer cylinder, the piston assembly is arranged inside the throttling inner cylinder, the piston assembly comprises a piston and a piston rod connected with the piston, the throttling inner cylinder is separated by the piston into rod cavities and rodless cavities, both-way throttling damping holes are formed between the throttling inner cylinder and the radiating outer cylinder, and the both-way throttling damping hole enables all rod cavities and all rodless cavities to be communicated. According to the outer-circulation type oil damper, the outer-circulation throttling damping on oil is achieved through the multistage both-way throttling damping holes formed between the radiating outer cylinder and the throttling inner cylinder, the mechanical energy is converted into the heat energy to be transmitted to the oil, in the flowing process of the high temperature oil, the high temperature oil is contacted with the overall-length range of the radiating outer cylinder, heat is sufficiently exchanged between the high temperature oil and the radiating outer cylinder, the radiating efficiency of the damper is improved, the steady state working temperature of the damper is reduced, the efficiency of the damper is accordingly improved, and the service life of the damper is accordingly prolonged.
Description
Technical field
The utility model relates to a kind of oil damper, is specifically related to a kind of outer circulation type oil damper.
Background technique
Now the oil damper that is used for heavy goods vehicle, armored vehicle all adopts damper two cavity oil liquid to carry out the structure of inner loop damping by the damping hole on the piston, the thermal dissipation that the mechanical kinetic energy that the wheel transmission is next is converted into fluid falls, thereby reduces wheel impacts load to the influence of car body.Owing to adopt the circulation of inner two chambeies, when damper long-term work during in to-and-fro motion by a small margin, the heat that the fluid damping produces mainly concentrates on damper inner chamber and pistons work part, heat can't be in time and the damper shell exchange, cause damper piston position local temperature to raise fast.Damper is worked under hot environment for a long time, easily causes the Sealing between piston and the damper cylindrical shell to lose efficacy fast, and damping effect descends, problems such as operating life shortening.
Summary of the invention
In order to solve the deficiencies in the prior art, the utility model provides a kind of outer circulation type oil damper.
The technical solution of the utility model is: comprise the heat radiation urceolus, throttling inner core and piston assembly, described throttling inner core is arranged within the heat radiation urceolus, described piston assembly is arranged within the throttling inner core, described piston assembly comprises piston and the piston rod that is connected with piston, described piston is isolated into rod chamber and rodless cavity with the throttling inner core, is installed on the bidirectional throttle damping hole between described throttling inner core and the heat radiation urceolus, and described bidirectional throttle damping hole is communicated with described rod chamber and rodless cavity.
Further improvement of the utility model:
Also be provided with at least two safety valves on the described piston body.
Described heat radiation urceolus also is connected with isolated accumulator, described isolated accumulator inner chamber is communicated with the rodless cavity of described throttling inner core by the one-way throttle hole, described isolated accumulator inner chamber also is installed on floating piston, and described floating piston is divided into shoe cream room and air cavity with described isolated accumulator inner chamber.
The rodless cavity joint of described isolated accumulator and throttling inner core also is provided with safety valve.
The present invention adopts fluid outer circulation damping structure form, and the isolated accumulator of plunger holds or discharges fluid when changing because of damper piston two cavity volume.Damper mainly partly is made up of heat radiation urceolus, throttling inner core, the piston assembly of being with safety valve, bottom valve (bottom valve comprises safety valve and the one-way throttle hole that is arranged on isolated accumulator and heat radiation joint, urceolus end), isolated accumulator etc.
In outer circulation type damper of the present invention, fluid is realized outer circulation throttling damping by the multistage bidirectional throttling damping hole that arranges between heat radiation urceolus and the throttling inner core, mechanical energy is converted into thermal energy transfer gives fluid, high-temperature oil liquid is in flow process, contact with heat radiation urceolus length range and with the abundant heat exchange of urceolus, improve the radiating efficiency of damper, reduced damper steady operation temperature, thereby improved efficient and the operating life of damper.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, heat radiation urceolus, 2, safety valve, 3, piston assembly, 4, the bidirectional throttle damping hole, 5, the throttling inner core, 6, isolated accumulator, 7, floating piston, 8 one-way throttle holes, 9, bottom valve.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, a kind of outer circulation type oil damper of the utility model comprises heat radiation urceolus 1, throttling inner core 5 and piston assembly 3, described throttling inner core 5 is arranged within the heat radiation urceolus 1, described piston assembly 3 is arranged within the throttling inner core 5, described piston assembly 3 comprises piston and the piston rod that is connected with piston, described piston is isolated into rod chamber and rodless cavity with throttling inner core 5, be installed on bidirectional throttle damping hole 4 between described throttling inner core 5 and the heat radiation urceolus 1, described bidirectional throttle damping hole 4 is communicated with described rod chamber and rodless cavity.Also be provided with at least two safety valves 2 on the described piston body.
Described heat radiation urceolus 1 also is connected with isolated accumulator 6, the shoe cream room of described isolated accumulator 6 is communicated with the rodless cavity of described throttling inner core 5 by one-way throttle hole 8, the safety valve 2 in the bottom valve 9, described isolated accumulator 6 inner chambers also are installed on floating piston 7, and described floating piston 7 is divided into shoe cream room and air cavity with described isolated accumulator 6 inner chambers.
Working procedure of the present utility model is:
During the piston rod income, damper rodless cavity fluid is most of through the bidirectional throttle damping hole 4 between heat radiation urceolus 1 and the throttling inner core 5 under the piston extruding, after the throttling damping, enter rod chamber and replenish rod chamber fluid, fluid is converted into heat energy by throttling damping hole 4 with the mechanical energy of piston rod movement in flow process, through being dissipated in the external environment condition with 1 heat exchange of heat radiation urceolus; Enter the shoe cream room of isolated accumulator 6 after one-way throttle hole 8 throttlings in another fraction fluid process bottom valve 9, be dissipated in the external environment condition with isolated accumulator 6 shell heat exchange, promote the air of air cavity in the isolated accumulator 6 of floating piston 7 compressions simultaneously.When piston rod movement speed surpasses the design maximum permissible value; rodless cavity pressure will reach certain value; the pressure release passage of the safety valve 2 on piston assembly 3 and the bottom valve 9 is opened; the safety valve 2 of a rodless cavity fluid part on piston assembly 3 directly enters rod chamber; the safety valve 2 of another part fluid on bottom valve 9 directly enters the shoe cream room of isolated accumulator 6; the damping force of bearing on the piston rod will significantly descend, and not be destroyed with the protection damper structure.
When piston rod stretches out, damper rod chamber fluid is the bidirectional throttle damping hole 4 through dispelling the heat between urceolus 1 and the throttling inner core 5 under the piston extruding, after the throttling damping, enter rodless cavity and replenish rodless cavity fluid, fluid is converted into heat energy by throttling damping hole 4 with the mechanical energy of piston rod movement in flow process, through being dissipated in the external environment condition with 1 heat exchange of heat radiation urceolus; The fluid of isolated accumulator 6 shoe cream rooms enters the additional rodless cavity fluid of rodless cavity of damper throttling inner core 5 through the repairing passage in one-way throttle hole 8 in the bottom valve 9 under the compressed-air actuated promotion of air cavity.When piston rod movement speed surpasses the design maximum permissible value; safety valve 2 on the piston assembly 3 is opened; the safety valve 2 of rod chamber fluid on piston assembly 3 directly enters rodless cavity, and the damping force of bearing on the piston rod will significantly descend, and is not destroyed with the protection damper structure.
The present invention mainly solves damper working procedure heat, and to concentrate on inner chamber and piston local and be unfavorable for the problem of dispelling the heat, reduce damper steady operation temperature, thereby realize improving the radiating efficiency of damper, guarantee damping effect, prolong the purpose of damper operating life.
The present invention adopts fluid outer circulation damping structure form, and the isolated accumulator 6 of plunger holds or discharges fluid when changing because of damper piston two cavity volume.Damper mainly partly is made up of heat radiation urceolus 1, throttling inner core 5, piston assembly 3, bottom valve 9, isolated accumulator 6 etc.
In outer circulation type damper of the present invention, fluid is realized outer circulation throttling damping by the multistage bidirectional throttling damping hole 4 that arranges between heat radiation urceolus 1 and the throttling inner core 5, mechanical energy is converted into thermal energy transfer gives fluid, high-temperature oil liquid is in flow process, contact with heat radiation urceolus 1 length range and with the abundant heat exchange of urceolus, improve the radiating efficiency of damper, reduced damper steady operation temperature, thereby improved efficient and the operating life of damper.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. outer circulation type oil damper, it is characterized in that, comprise the heat radiation urceolus, throttling inner core and piston assembly, described throttling inner core is arranged within the heat radiation urceolus, described piston assembly is arranged within the throttling inner core, described piston assembly comprises piston and the piston rod that is connected with piston, described piston is isolated into rod chamber and rodless cavity with the throttling inner core, be installed on the bidirectional throttle damping hole between described throttling inner core and the heat radiation urceolus, described bidirectional throttle damping hole is communicated with described rod chamber and rodless cavity.
2. a kind of outer circulation type oil damper according to claim 1 is characterized in that, also is provided with at least two safety valves on the described piston body.
3. a kind of outer circulation type oil damper according to claim 1, it is characterized in that, described heat radiation urceolus also is connected with isolated accumulator, described isolated accumulator inner chamber is communicated with the rodless cavity of described throttling inner core by the one-way throttle hole, described isolated accumulator inner chamber also is installed on floating piston, and described floating piston is divided into shoe cream room and air cavity with described isolated accumulator inner chamber.
4. a kind of outer circulation type oil damper according to claim 3 is characterized in that, the rodless cavity joint of described isolated accumulator and throttling inner core also is provided with safety valve.
5. a kind of outer circulation type oil damper according to claim 1 is characterized in that, the throttling of the two-stage bidirectional at least damping hole that arranges between described heat radiation urceolus and the throttling inner core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233923 CN203223514U (en) | 2013-05-03 | 2013-05-03 | Outer-circulation type oil damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233923 CN203223514U (en) | 2013-05-03 | 2013-05-03 | Outer-circulation type oil damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223514U true CN203223514U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320233923 Expired - Fee Related CN203223514U (en) | 2013-05-03 | 2013-05-03 | Outer-circulation type oil damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN203223514U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114502A (en) * | 2015-08-24 | 2015-12-02 | 芜湖市汽车产业技术研究院有限公司 | Gas-liquid damping system |
| CN107061150A (en) * | 2017-04-25 | 2017-08-18 | 上海海事大学 | A kind of liquid squash type Pneumatic heating device based on multi-level throttle |
| CN112498531A (en) * | 2020-11-30 | 2021-03-16 | 储华 | Multistage buffering anti-bumping bicycle cushion rod |
-
2013
- 2013-05-03 CN CN 201320233923 patent/CN203223514U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114502A (en) * | 2015-08-24 | 2015-12-02 | 芜湖市汽车产业技术研究院有限公司 | Gas-liquid damping system |
| CN107061150A (en) * | 2017-04-25 | 2017-08-18 | 上海海事大学 | A kind of liquid squash type Pneumatic heating device based on multi-level throttle |
| CN107061150B (en) * | 2017-04-25 | 2023-11-10 | 上海海事大学 | Liquid extrusion type wind energy heating device based on multistage throttling |
| CN112498531A (en) * | 2020-11-30 | 2021-03-16 | 储华 | Multistage buffering anti-bumping bicycle cushion rod |
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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 |
Granted publication date: 20131002 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |