CN203717768U - Hydraulic damping device - Google Patents
Hydraulic damping device Download PDFInfo
- Publication number
- CN203717768U CN203717768U CN201420085999.XU CN201420085999U CN203717768U CN 203717768 U CN203717768 U CN 203717768U CN 201420085999 U CN201420085999 U CN 201420085999U CN 203717768 U CN203717768 U CN 203717768U
- Authority
- CN
- China
- Prior art keywords
- oil
- damping
- hydraulic
- impeller
- oil cylinder
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/14—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers accumulating utilisable energy, e.g. compressing air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/16—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dynamic absorbers as main damping means, i.e. spring-mass system vibrating out of phase
- B60G13/18—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dynamic absorbers as main damping means, i.e. spring-mass system vibrating out of phase combined with energy-absorbing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
- B60G17/08—Characteristics of fluid dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/60—Vehicles using regenerative power
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The utility model discloses a hydraulic damping device and belongs to the technical field of hydraulic damping. When a damping oil cylinder is connected with a generator through a hydraulic motor for power generation, pipelines and valves need to be added, so that hydraulic oil enters an oil inlet of the hydraulic motor all the time to greatly complicate an oil channel. A rod chamber and a rodless chamber of the damping oil cylinder (1) are communicated with each other through an external oil pipe (5); a power generation device is arranged on the external oil pipe (5), and comprises an impeller shell (8), an impeller (4) and the generator (2); the impeller shell (8) is connected in series and communicated with the external oil pipe (5) through a first oil port (9) and a second oil port (10); the first oil port (9) and the second oil port (10) are formed in two sides of the impeller shell (8) in a staggered manner; the impeller (4) is rotatably fixed in the impeller shell (8); the generator (2) is connected with the impeller (4) through a rotary shaft (3). The hydraulic damping device has the advantages of simple oil channel, reliability in operation and the like.
Description
Technical field
Hydraulic damping device, belongs to hydraulic shock-absorption technical field.
Background technique
The damping device of damping spring and damping oil cylinder mix proportion is widely used in automobile and other mechanical devices, the in-oil cylinder hydraulic oil of general damping flows in another chamber through different holes from a chamber repeatedly, reach the object of damping, hydraulic fluid temperature is very high, and the vibration energy waste that causes damping to produce, the damping oil cylinder having at present adopts external oil way to connect, connecting fluid pressure motor on external oil way, connecting generator by oil hydraulic motor generates electricity, reclaim the energy producing in damping process, but oil cylinder is upheld and compression, it is contrary that hydraulic oil in external oil way flows to, this just need to increase pipeline and valve enters hydraulic oil all the time from the filler opening of oil hydraulic motor, cause oil circuit very complicated, and increase the consumption of hydraulic oil, increase cost, and increase leak point, reduce the reliability of damping device.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide that a kind of oil circuit is simple, the hydraulic damping device of reliable operation.
The utility model solves the technological scheme that its technical problem adopts: this hydraulic damping device, comprise damping oil cylinder, the rod chamber of damping oil cylinder is communicated with by external oil pipe with rodless cavity, external oil pipe is provided with electricity generating device, it is characterized in that: described electricity generating device comprises hub, impeller and generator, hub is communicated with on external oil pipe by the first hydraulic fluid port and the series connection of the second hydraulic fluid port, the interleaved both sides that are located at hub of the first hydraulic fluid port and the second hydraulic fluid port, wheel rotation is fixed in hub, and generator is connected with impeller by rotating shaft.No matter the compression of damping oil cylinder is still upheld, and the sense of rotation of impeller is identical, so the sense of rotation of generator amature is identical, and generator working stability, oil circuit is simple, oil circuit shorten length, and the valve quantity of use obviously reduces, reduce costs, reduce the fault point, improve reliability.
Preferably, the bending blade setting of described impeller, the first hydraulic fluid port and the second hydraulic fluid port all point to the curved interior of blade.Increase the vane stress area of impeller, improve the rotating speed of impeller, thereby improve the recovery rate and the generating efficiency of vibration energy.
Preferably, described external oil pipe is provided with throttle valve, and is parallel with decompression mechanism at throttle valve place.In the time that automobile crosses suddenly larger obstacle, external oil pipe internal pressure increases sharply, hydraulic oil cannot pass through throttle valve rapid flow, if there is no decompression mechanism, damping oil cylinder cannot Fast Compression, the damping device that is automobile cannot absorb huge like this vibrations, automobile can be upspring in moment, affect travelling comfort and the Security of automobile, install after decompression mechanism, after pressure in external oil pipe increases sharply, hydraulic oil in rodless cavity is by decompression mechanism rapid flow, realize the Fast Compression of damping oil cylinder piston rod, absorb to greatest extent the vibrations of automobile, improve stability and the travelling comfort of automobile.
Preferably, described decompression mechanism is one-way valve, and the entrance of one-way valve is communicated with the rodless cavity of damping oil cylinder.Use the cracking pressure of one-way valve to be greater than the pressure maximum of throttle valve, while normally travelling, hydraulic oil in the external oil pipe throttle valve of flowing through, after the pressure in external oil pipe increases sharply, one-way valve is opened, hydraulic oil in external oil pipe is through one-way valve rapid flow, and damping oil cylinder Fast Compression, prevents that automobile from being upspring.
Preferably, described decompression mechanism comprises regulating oil tank and one-way valve, and regulating oil tank is communicated with external oil pipe by oil inlet pipe and oil outlet tube, and one-way valve is arranged on oil inlet pipe, and the outlet of one-way valve is communicated with regulating oil tank entrance.After pressure in external oil pipe increases sharply, hydraulic oil can be opened one-way valve and enter in regulating oil tank, then flows into the rod chamber of damping oil cylinder, and the capacity of regulating oil tank is large, can make the further Fast Compression of damping oil cylinder, further heightens the stability of automobile.
Preferably, described oil outlet tube is provided with oil pump.Can further improve the flow velocity of hydraulic oil by oil pump, improve the compression speed of damping oil cylinder, and can be damping oil cylinder Active Compensation hydraulic oil by oil pump, prevent damping oil cylinder because hydraulic oil is revealed and cause Fast Wearing, improve the working life of damping oil cylinder and the Security of automobile.
Compared with prior art, the beneficial effect that hydraulic damping device has is:
1, simple, the reliable operation of oil circuit, the interleaved both sides that are located at hub of the first hydraulic fluid port and the second hydraulic fluid port, no matter the compression of damping oil cylinder is still upheld, and the sense of rotation of impeller is identical, so the sense of rotation of generator amature is identical, generator working stability, oil circuit is simple, oil circuit shorten length, the valve quantity using obviously reduces, reduce costs, reduce the fault point, improve reliability.
2, external oil pipe is provided with throttle valve, by flow in the external oil pipe of throttle valve adjustment, thereby regulates the flexible damping of damping oil cylinder, regulates the damping of damping spring, and the sensitivity of vehicles damping device, can make automobile adapt to different road conditions, at throttle valve, place is parallel with decompression mechanism, in the time that automobile crosses suddenly larger obstacle, external oil pipe internal pressure increases sharply, hydraulic oil cannot pass through throttle valve rapid flow, if there is no decompression mechanism, damping oil cylinder cannot Fast Compression, the damping device that is automobile cannot absorb huge like this vibrations, automobile can be upspring in moment, affect travelling comfort and the Security of automobile, install after decompression mechanism, after pressure in external oil pipe increases sharply, hydraulic oil in rodless cavity is by decompression mechanism rapid flow, realize the Fast Compression of damping oil cylinder piston rod, absorb to greatest extent the vibrations of automobile, improve stability and the travelling comfort of automobile.
3, throttle valve is parallel with regulating oil tank, and regulating oil tank can be that damping oil cylinder supplements hydraulic oil, prevents from occurring after the long-term work of damping oil cylinder the situation of hydraulic oil deficiency, avoids damping oil cylinder Fast Wearing, improves the working life of damping oil cylinder.
Brief description of the drawings
Fig. 1 is hydraulic damping device embodiment 1 structural representation.
Fig. 2 is the structural representation of impeller.
Fig. 3 is hydraulic damping device embodiment 2 structural representation.
Fig. 4 is hydraulic damping device embodiment 3 structural representation.
Fig. 5 is hydraulic damping device embodiment 4 structural representation.
Wherein: 1, damping oil cylinder 2, generator 3, rotating shaft 4, impeller 5, external oil pipe 6, throttle valve 7, one-way valve 8, hub 9, the first hydraulic fluid port 10, the second hydraulic fluid port 11, regulating oil tank 12, oil inlet pipe 13, oil outlet tube 14, oil pump.
Embodiment
Be described further below in conjunction with 1 ~ 5 pair of hydraulic damping device of accompanying drawing, wherein embodiment 3 is most preferred embodiment.
Embodiment 1
With reference to Fig. 1, hydraulic damping device, comprise damping oil cylinder 1, external oil pipe 5 and generator 2, the rod chamber of damping oil cylinder 1 is communicated with by external oil pipe 5 with rodless cavity, in damping process, the piston rod of damping oil cylinder 1 is flexible, hydraulic oil flows between the rod chamber of damping oil cylinder 1 and rodless cavity through external oil pipe 5, on external oil pipe 5, be in series with an impeller 4, impeller connects generator 2 by rotating shaft 3, the flow driving impeller 4 of external oil pipe 5 interior hydraulic oil rotates, impeller 4 drives generator 2 to generate electricity by rotating shaft 3, recycles the vibration energy that damping produces.
On external oil pipe 5, be in series with a throttle valve 6, can change the flow of external oil pipe 5 interior hydraulic oil by throttle valve 6, thereby regulate the flexible damping of damping oil cylinder 1, regulate the damping of damping spring (not shown in FIG.), reach the sensitivity of vehicles damping device, external oil pipe 5 is parallel with an one-way valve 7 at throttle valve 6 places, the entrance of one-way valve 7 is communicated with the rodless cavity of damping oil cylinder 1, the cracking pressure of one-way valve 7 is greater than the pressure maximum of throttle valve 6, in normal running process, the interior hydraulic oil of external oil pipe 5 flows by throttle valve 6, in the time that automobile crosses suddenly larger obstacle, external oil pipe 5 internal pressures increase suddenly, hydraulic oil cannot pass through throttle valve 6 rapid flows, if there is no one-way valve 7, damping oil cylinder 1 cannot Fast Compression, the damping device that is automobile cannot absorb huge like this vibrations, automobile can be upspring in moment, affect travelling comfort and the Security of automobile, after one-way valve 7 has been installed, damping oil cylinder 1 is by compression time, pressure in external oil pipe 5 is opened one-way valve 7, hydraulic oil in rodless cavity flows into rod chamber by one-way valve 7, realize the Fast Compression of damping oil cylinder 1 piston rod, absorb to greatest extent the vibrations of automobile, improve stability and the travelling comfort of automobile.
With reference to Fig. 2, impeller 4 rotates and is fixed in hub 8, hub 8 is communicated with on external oil pipe 5 by the first hydraulic fluid port 9 and the second hydraulic fluid port 10 series connection, the first hydraulic fluid port 9 and the interleaved both sides that are located at hub 8 of the second hydraulic fluid port 10, when damping oil cylinder 1 compresses, hydraulic oil in rodless cavity enters in hub 8 through the first hydraulic fluid port 9, drives impeller 4 is rotated counterclockwise, then enter the rod chamber of damping oil cylinder 1 through the second hydraulic fluid port 10, when damping oil cylinder 1 is upheld, hydraulic oil in rod chamber enters in hub 8 through the second hydraulic fluid port 10, drives impeller 4 rotates counterclockwise, then enter rodless cavity through the first hydraulic fluid port 9, no matter 1 compression of damping oil cylinder is still upheld as can be seen here, the sense of rotation of impeller 4 is counterclockwise, reach the effect of generator 2 equidirectional rotations by simple oil circuit, the bending blade setting of impeller 4, the first hydraulic fluid port 9 and the second hydraulic fluid port 10 all point to the curved interior of blade, can make hydraulic oil enter hub 8 interior after, guarantee the stressed outside that is greater than inside the bending blade of impeller 4, impeller 4 spin stabilizations, and bending blade can prevent the gap that hydraulic oil is flowed through between vane tip and hub 8, make full use of the impact force of hydraulic oil, improve the rotating speed of impeller 4, improve the working efficiency of generator 2.
Working procedure: when damping spring compression, the stressed contraction of piston rod of damping oil cylinder 1, hydraulic oil in rod chamber enters hub 8 through throttle valve 6 and the first hydraulic fluid port 9, drives impeller 4 is rotated counterclockwise, then enter rod chamber through the second hydraulic fluid port 10 and external oil pipe 5, when damping spring is upheld, the stressed stretching of piston rod of damping oil cylinder 1, hydraulic oil in rod chamber enters in hub 8 through external oil pipe 5 and the second hydraulic fluid port 10, drives impeller 4 is rotated counterclockwise, and then enters rodless cavity through the first hydraulic fluid port 9 and throttle valve 6; By regulating the throttle valve 6 can vehicles damping sensitivity, thereby can make automobile adapt to different road conditions, improve car comfort and Security.One-way valve 7 can be in the time that automobile crosses obstacle suddenly, hydraulic oil in damping oil cylinder 1, through one-way valve 7 rapid flows, is realized the Fast Compression of damping oil cylinder 1, makes damping spring Fast Compression, prevent that automobile from being upspring by moment, improve Security and the travelling comfort of automobile.
Embodiment 2
With reference to Fig. 3, the present embodiment is that from embodiment 1 difference the pressure relief device of throttle valve 6 places parallel connection is different, in the present embodiment, external oil pipe 5 is at a throttle valve 6 places regulating oil tank 11 in parallel, the entrance of regulating oil tank 11 is communicated with the rodless cavity of damping oil cylinder 1 by oil inlet pipe 12, the outlet of regulating oil tank 11 is communicated with the rod chamber of damping oil cylinder 1 by oil outlet tube 13, wherein oil inlet pipe 12 is provided with an one-way valve 7, the entrance of one-way valve 7 is communicated with rodless cavity, the cracking pressure of one-way valve 7 is greater than the pressure maximum of throttle valve 6, in the time that automobile crosses obstacle suddenly, pressure in external oil pipe 5 increases sharply, open check valve 7, hydraulic oil in rodless cavity enters in regulating oil tank 11 through one-way valve 7, due to the suction of rod chamber and the input pressure of oil inlet pipe 12, hydraulic oil in regulating oil tank 11 enters the rod chamber of damping oil cylinder 1 after impeller 4, make damping oil cylinder 1 Fast Compression, prevent that automobile from being upspring by moment, improve Security and the travelling comfort of automobile, the capacity of regulating oil tank 11 is larger, damping oil cylinder 1 compression speed is faster, and regulating oil tank 11 can supplement the interior hydraulic oil of damping oil cylinder 1, after preventing 1 long-term work of damping oil cylinder, leakage of oil causes damping oil cylinder 1 Fast Wearing, improve the working life of damping oil cylinder 1.The structure of impeller 4 is with embodiment 1.
Embodiment 3
With reference to Fig. 4, the present embodiment and embodiment's 2 difference is that oil outlet tube 13 is provided with an oil pump 14, in the time detecting that external oil pipe 5 internal pressures are very large, be that automobile is subject to very large vibrations, oil pump 14 is worked, hydraulic oil in regulating oil tank 11 is pumped to the rod chamber into damping oil cylinder 1 fast, further improve the compression speed of damping oil cylinder 1, improve the stability of automobile; Or when the hydraulic oil deficiency in damping oil cylinder 1 detected, oil pump 14 is worked, and the hydraulic oil in regulating oil tank 11 is pumped in damping oil cylinder 1, damping oil cylinder 1 is carried out to hydraulic oil and supplement, and improves reliability and the working life of damping oil cylinder 1.Other structures are with embodiment 2.
Embodiment 4
With reference to Fig. 5, the present embodiment is that with embodiment 1 difference impeller 4, throttle valve 6 are in parallel with one-way valve 7 after connecting, in the time that external oil pipe 5 internal pressures increase sharply, open after one-way valve 7, hydraulic oil in rodless cavity directly enters rod chamber after one-way valve 7, no longer drives impeller 4 is rotated, and further improves the compression speed of damping oil cylinder 1, improves stability and the Security of automobile.
Equally, regulating oil tank 11 also can be in parallel with impeller 4, throttle valve 6.
The utility model not only can be applied in automobile shock field, can also be applied in other the damping of mechanical device.
The above, it is only preferred embodiment of the present utility model, it is not the restriction of the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations, for example, other modulating valve such as throttle valve 6 use pressure regulator valves are replaced.But every technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (6)
1. a hydraulic damping device, comprise damping oil cylinder (1), the rod chamber of damping oil cylinder (1) is communicated with by external oil pipe (5) with rodless cavity, external oil pipe (5) is provided with electricity generating device, it is characterized in that: described electricity generating device comprises hub (8), impeller (4) and generator (2), hub (8) is communicated with on external oil pipe (5) by the first hydraulic fluid port (9) and the second hydraulic fluid port (10) series connection, the first hydraulic fluid port (9) and the interleaved both sides that are located at hub (8) of the second hydraulic fluid port (10), impeller (4) rotates and is fixed in hub (8), generator (2) is connected with impeller (4) by rotating shaft (3).
2. hydraulic damping device according to claim 1, is characterized in that: the bending blade setting of described impeller (4), the first hydraulic fluid port (9) and the second hydraulic fluid port (10) all point to the curved interior of blade.
3. hydraulic damping device according to claim 1, is characterized in that: described external oil pipe (5) is provided with throttle valve (6), and locates to be parallel with decompression mechanism at throttle valve (6).
4. hydraulic damping device according to claim 3, is characterized in that: described decompression mechanism is one-way valve (7), and the entrance of one-way valve (7) is communicated with the rodless cavity of damping oil cylinder (1).
5. hydraulic damping device according to claim 3, it is characterized in that: described decompression mechanism comprises regulating oil tank (11) and one-way valve (7), regulating oil tank (11) is communicated with external oil pipe (5) by oil inlet pipe (12) and oil outlet tube (13), it is upper that one-way valve (7) is arranged on oil inlet pipe (12), and the outlet of one-way valve (7) is communicated with regulating oil tank (11) entrance.
6. hydraulic damping device according to claim 5, is characterized in that: described oil outlet tube (13) is provided with oil pump (14).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085999.XU CN203717768U (en) | 2014-02-27 | 2014-02-27 | Hydraulic damping device |
| PCT/CN2014/091056 WO2015127800A1 (en) | 2014-02-27 | 2014-11-14 | Hydraulic damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085999.XU CN203717768U (en) | 2014-02-27 | 2014-02-27 | Hydraulic damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717768U true CN203717768U (en) | 2014-07-16 |
Family
ID=51156921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085999.XU Expired - Fee Related CN203717768U (en) | 2014-02-27 | 2014-02-27 | Hydraulic damping device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203717768U (en) |
| WO (1) | WO2015127800A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015127800A1 (en) * | 2014-02-27 | 2015-09-03 | 郭怀宝 | Hydraulic damping device |
| CN107448537A (en) * | 2017-09-23 | 2017-12-08 | 芜湖金智王机械设备有限公司 | A kind of hydraulic shock-absorption instrument |
| CN110644531A (en) * | 2019-09-11 | 2020-01-03 | 海门市帕源路桥建设有限公司 | Construction process of box-type combined die of large excavation tunnel and automatic telescopic connecting device thereof |
| CN110667364A (en) * | 2019-09-18 | 2020-01-10 | 阿尔特汽车技术股份有限公司 | Suspension system with energy recovery device |
| CN111001468A (en) * | 2019-12-31 | 2020-04-14 | 唐山冀东装备工程股份有限公司 | Damping limiting device of vertical roller mill |
| CN112747063A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Vibration damper, energy conversion device and vehicle |
| CN113915196A (en) * | 2021-09-30 | 2022-01-11 | 娄底光华机械设备制造有限公司 | Variable damping type hydraulic vibration excitation device |
| CN117386751A (en) * | 2023-11-17 | 2024-01-12 | 广东华辉电梯配件有限公司 | Damping buffer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105308A (en) * | 2017-12-31 | 2018-06-01 | 贵州大学 | A kind of noise reduction damping device for machinery |
| CN112952834B (en) * | 2021-03-29 | 2024-01-30 | 费籁电气(上海)有限公司 | Damping device for APF active power filter |
| CN114393173B (en) * | 2022-01-06 | 2024-04-02 | 杭州萧山万隆链条制造有限公司 | Manufacturing method of chain |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066712A (en) * | 1991-01-16 | 1992-12-02 | 周彬 | Low water head hydraulic power generating equipment |
| US7779974B2 (en) * | 2005-08-22 | 2010-08-24 | Technology Investments Limited | Vehicle suspension spring system |
| CN202100401U (en) * | 2011-05-26 | 2012-01-04 | 燕山大学 | Oil pressure driving power generation device of road deceleration strip |
| CN102632803B (en) * | 2012-05-03 | 2015-06-10 | 德州学院 | Novel hydraulic energy-regenerative damping system |
| CN203717768U (en) * | 2014-02-27 | 2014-07-16 | 郭怀宝 | Hydraulic damping device |
-
2014
- 2014-02-27 CN CN201420085999.XU patent/CN203717768U/en not_active Expired - Fee Related
- 2014-11-14 WO PCT/CN2014/091056 patent/WO2015127800A1/en active Application Filing
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015127800A1 (en) * | 2014-02-27 | 2015-09-03 | 郭怀宝 | Hydraulic damping device |
| CN107448537A (en) * | 2017-09-23 | 2017-12-08 | 芜湖金智王机械设备有限公司 | A kind of hydraulic shock-absorption instrument |
| CN110644531A (en) * | 2019-09-11 | 2020-01-03 | 海门市帕源路桥建设有限公司 | Construction process of box-type combined die of large excavation tunnel and automatic telescopic connecting device thereof |
| CN110644531B (en) * | 2019-09-11 | 2021-05-07 | 海门市帕源路桥建设有限公司 | Construction process of box-type combined die of large excavation tunnel and automatic telescopic connecting device thereof |
| CN110667364A (en) * | 2019-09-18 | 2020-01-10 | 阿尔特汽车技术股份有限公司 | Suspension system with energy recovery device |
| CN110667364B (en) * | 2019-09-18 | 2024-05-14 | 阿尔特汽车技术股份有限公司 | Suspension system with energy recovery device |
| CN112747063A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Vibration damper, energy conversion device and vehicle |
| CN112747063B (en) * | 2019-10-31 | 2022-06-14 | 比亚迪股份有限公司 | Vibration damper, energy conversion device and vehicle |
| CN111001468A (en) * | 2019-12-31 | 2020-04-14 | 唐山冀东装备工程股份有限公司 | Damping limiting device of vertical roller mill |
| CN113915196A (en) * | 2021-09-30 | 2022-01-11 | 娄底光华机械设备制造有限公司 | Variable damping type hydraulic vibration excitation device |
| CN117386751A (en) * | 2023-11-17 | 2024-01-12 | 广东华辉电梯配件有限公司 | Damping buffer |
| CN117386751B (en) * | 2023-11-17 | 2024-04-30 | 广东华辉电梯配件有限公司 | Damping buffer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015127800A1 (en) | 2015-09-03 |
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