CN112943716A - Device and method for slowing down stop resonance of hydraulic vibration hammer - Google Patents
Device and method for slowing down stop resonance of hydraulic vibration hammer Download PDFInfo
- Publication number
- CN112943716A CN112943716A CN202110092777.5A CN202110092777A CN112943716A CN 112943716 A CN112943716 A CN 112943716A CN 202110092777 A CN202110092777 A CN 202110092777A CN 112943716 A CN112943716 A CN 112943716A
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- Prior art keywords
- oil
- oil inlet
- vibration hammer
- excavator
- pipe
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 70
- 239000010705 motor oil Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/85—Control during special operating conditions
- F15B2211/853—Control during special operating conditions during stopping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8613—Control during or prevention of abnormal conditions the abnormal condition being oscillations
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides a method for slowing down the stop resonance of a hydraulic vibration hammer, and also provides a device applying the method, wherein the device comprises an oil inlet pipe and an oil return pipe, one end of the oil inlet pipe is connected with an oil inlet of a driving motor of the hydraulic vibration hammer, the other end of the oil inlet pipe is connected with an oil inlet of an excavator, one end of the oil return pipe is connected with an oil return port of the driving motor of the hydraulic vibration hammer, and the other end of the oil return pipe is connected with an excavator oil tank; the end part of the oil inlet pipe close to the oil inlet of the excavator and the end part of the oil return pipe close to the oil tank of the excavator are provided with electromagnetic valves, a communicating pipe is arranged between the oil inlet pipe and the oil return pipe, and a one-way overflow valve is arranged on the communicating pipe. The device and the method for slowing down the stop resonance of the hydraulic vibration hammer can realize the quick stop of the hydraulic motor and effectively avoid the generation of resonance, thereby protecting the excavator and surrounding buildings, and having the characteristics of simple structure and wide application range.
Description
Technical Field
The invention relates to a device and a method for slowing down resonance, in particular to a device and a method for slowing down the stop resonance of a hydraulic vibration hammer.
Background
In the practical use of hydraulic vibration hammer, need reach certain rotational speed and realize beating the required exciting force of pile pulling, however, the hydraulic power component of traditional hydraulic vibration hammer is hydraulic motor, no matter is starting or the in-process that stops, all needs certain time to reach or reduce its output rotational speed, and this process required time is longer, and this makes hydraulic vibration hammer can produce a resonant phenomenon.
In the field use process of the hydraulic vibration hammer, as buildings exist around a construction site, the resonance phenomenon of the hydraulic vibration hammer can cause slight damage to the surrounding buildings, and the buildings can crack over time; even the resonance of the hydraulic vibratory hammer can have an effect on the structural components of the excavator.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a device and a method for slowing down the stop resonance of a hydraulic vibration hammer, and solves the problem that the hydraulic motor of the conventional hydraulic vibration hammer is easy to resonate due to long-time deceleration.
In order to solve the technical problems, the invention provides the following technical scheme:
when a hydraulic motor of the hydraulic vibration hammer needs to be stopped, the pressure of an oil inlet pipe and an oil return pipe is adjusted to enable the hydraulic motor to generate reverse torque, so that an eccentric block of the hydraulic vibration hammer is quickly stopped.
A device for slowing down the stop resonance of a hydraulic vibration hammer comprises an oil inlet pipe and an oil return pipe, wherein one end of the oil inlet pipe is connected with a driving motor oil inlet of the hydraulic vibration hammer, the other end of the oil inlet pipe is connected with an excavator oil inlet, one end of the oil return pipe is connected with a driving motor oil return port of the hydraulic vibration hammer, and the other end of the oil return pipe is connected with an excavator oil tank; the end part of the oil inlet pipe close to an oil inlet of the excavator and the end part of the oil return pipe close to an oil tank of the excavator are provided with electromagnetic valves, a communicating pipe is arranged between the oil inlet pipe and the oil return pipe, and a one-way overflow valve is arranged on the communicating pipe.
Furthermore, the end part of the oil inlet pipe close to the oil inlet of the excavator and the end part of the oil return pipe close to the oil tank of the excavator are provided with a two-position four-way hydraulic electromagnetic valve together.
The invention has the beneficial effects that:
1. the hydraulic motor stopping device has a wide application range, and can be used in any occasions needing to stop the hydraulic motor quickly;
2. the problem of the resonance time of the hydraulic vibration hammer caused by the deceleration of the hydraulic motor is greatly solved, so that the stop time is reduced to 2-5s from the original 20-30 s;
3. the pressure threshold value of the overflow valve can be adjusted, so that different eccentric assemblies can achieve expected effects.
The device and the method for slowing down the stop resonance of the hydraulic vibratory hammer can realize the quick stop of the hydraulic motor and effectively avoid the generation of resonance, thereby protecting the excavator and surrounding buildings and having the characteristics of simple structure and wide application range.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the apparatus of the present invention in the open state of the solenoid valve;
FIG. 2 is a schematic view of the device of the present invention in the closed state of the solenoid valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 and 2, a device for slowing down the stop resonance of a hydraulic vibration hammer comprises an oil inlet pipe 1 and an oil return pipe 2, wherein one end of the oil inlet pipe 1 is connected with an oil inlet of a driving motor a of the hydraulic vibration hammer, the other end (set as a port P) of the oil inlet pipe 1 is connected with an oil inlet of an excavator, one end of the oil return pipe 2 is connected with an oil return port of the driving motor a of the hydraulic vibration hammer, and the other end (set as a port T) of the oil return pipe 2 is connected with an excavator oil tank; the end part of the oil inlet pipe 1 close to an oil inlet of the excavator and the end part of the oil return pipe 2 close to an oil tank of the excavator are provided with a two-position four-way hydraulic electromagnetic valve 3 together, a communicating pipe 4 is arranged between the oil inlet pipe 1 and the oil return pipe 2, and a one-way overflow valve 5 is arranged on the communicating pipe 4.
The working principle is as follows:
hydraulic motor torque formula: m is D x delta P/63, wherein D is the motor displacement, delta P is the pressure difference between the oil inlet and the oil outlet, and the conduction direction of the one-way overflow valve is from the oil return pipe to the oil inlet pipe.
Assuming that the conduction pressure of the one-way overflow valve is 80bar, the oil inlet pressure of a P port is 300bar, the oil return pressure of a T port is 0bar, the pressure difference between an oil inlet and an oil outlet of the hydraulic motor is 300bar under the opening state of the electromagnetic valve, and the hydraulic motor provides a positive torque; when the vibration hammer operation stops, because eccentric subassembly's inertial force, lead to the eccentric block to drive hydraulic motor and continue to rotate, close the solenoid valve this moment, the fuel feeding of P mouth stops, the pressure of hydraulic motor oil inlet is reduced to 0bar by 300bar, T mouth is because the shutoff of solenoid valve for the pressure in the oil return pipe rises, when pressure rises to 80bar, the one-way overflow valve is opened, oil gets into hydraulic motor once more via communicating pipe and oil inlet pipe, the pressure in the oil inlet pipe is 0bar this moment, the pressure in the oil return pipe is stabilized at 80bar, according to the torque formula, hydraulic motor can produce a reverse moment of torsion, thereby make the eccentric block can stop fast. In addition, oil is replenished to the driving motor through the overflow valve, so that the phenomenon that the motor oil inlet is sucked empty can be prevented, and the motor is effectively protected.
The device for slowing down the stop resonance of the hydraulic vibration hammer can realize the quick stop of the hydraulic motor and effectively avoid the generation of resonance, thereby protecting the excavator and surrounding buildings and having the characteristics of simple structure and wide application range.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A method for slowing down the stop resonance of a hydraulic vibration hammer is characterized by comprising the following steps: when the hydraulic motor of the hydraulic vibration hammer needs to be stopped, the hydraulic motor generates reverse torque through adjusting the pressure of the oil inlet pipe and the pressure of the oil return pipe, so that the eccentric block of the hydraulic vibration hammer is quickly stopped.
2. The utility model provides a slow down device that hydraulic vibration hammer stopped resonance which characterized in that: the hydraulic vibration hammer driving device comprises an oil inlet pipe and an oil return pipe, wherein one end of the oil inlet pipe is connected with a driving motor oil inlet of a hydraulic vibration hammer, the other end of the oil inlet pipe is connected with an excavator oil inlet, one end of the oil return pipe is connected with a driving motor oil return port of the hydraulic vibration hammer, and the other end of the oil return pipe is connected with an excavator oil tank;
the end part of the oil inlet pipe close to an oil inlet of the excavator and the end part of the oil return pipe close to an oil tank of the excavator are provided with electromagnetic valves, a communicating pipe is arranged between the oil inlet pipe and the oil return pipe, and a one-way overflow valve is arranged on the communicating pipe.
3. The apparatus for slowing down the stopping resonance of a hydraulic vibro hammer of claim 1, characterized in that: and the end part of the oil inlet pipe close to the oil inlet of the excavator and the end part of the oil return pipe close to the oil tank of the excavator are jointly provided with a two-position four-way hydraulic electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092777.5A CN112943716A (en) | 2021-01-25 | 2021-01-25 | Device and method for slowing down stop resonance of hydraulic vibration hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092777.5A CN112943716A (en) | 2021-01-25 | 2021-01-25 | Device and method for slowing down stop resonance of hydraulic vibration hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112943716A true CN112943716A (en) | 2021-06-11 |
Family
ID=76236155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110092777.5A Pending CN112943716A (en) | 2021-01-25 | 2021-01-25 | Device and method for slowing down stop resonance of hydraulic vibration hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112943716A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10115301A (en) * | 1996-10-09 | 1998-05-06 | Nippon Sharyo Seizo Kaisha Ltd | Braking device for hydraulic motor |
| CN201250815Y (en) * | 2008-09-19 | 2009-06-03 | 郑州宇通重工有限公司 | Bidirectional overloading oil feed valve adapted for rotary drilling rig |
| CN201301466Y (en) * | 2008-11-13 | 2009-09-02 | 贵州詹阳动力重工有限公司 | Rotary oil supply loop for hydraulic excavator |
| CN201512790U (en) * | 2009-09-18 | 2010-06-23 | 广东力源液压机械有限公司 | Hydraulic control system used for vibratory hammer |
| CN103527562A (en) * | 2013-11-04 | 2014-01-22 | 恒天九五重工有限公司 | Oil-replenishing-pressure-adjustable hydraulic oil replenishing device of rotary motor of rotary drilling rig |
| CN206158566U (en) * | 2016-10-27 | 2017-05-10 | 宝鸡石油机械有限责任公司 | Carousel hydraulic control drive arrangement |
| CN107420360A (en) * | 2017-06-29 | 2017-12-01 | 长沙学院 | The pressure-releasing type anti-swing control device and method of engineering machinery rotary braking |
| CN215333693U (en) * | 2021-01-25 | 2021-12-28 | 安腾机械科技(无锡)有限公司 | Device for slowing down stop resonance of hydraulic vibration hammer |
-
2021
- 2021-01-25 CN CN202110092777.5A patent/CN112943716A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10115301A (en) * | 1996-10-09 | 1998-05-06 | Nippon Sharyo Seizo Kaisha Ltd | Braking device for hydraulic motor |
| CN201250815Y (en) * | 2008-09-19 | 2009-06-03 | 郑州宇通重工有限公司 | Bidirectional overloading oil feed valve adapted for rotary drilling rig |
| CN201301466Y (en) * | 2008-11-13 | 2009-09-02 | 贵州詹阳动力重工有限公司 | Rotary oil supply loop for hydraulic excavator |
| CN201512790U (en) * | 2009-09-18 | 2010-06-23 | 广东力源液压机械有限公司 | Hydraulic control system used for vibratory hammer |
| CN103527562A (en) * | 2013-11-04 | 2014-01-22 | 恒天九五重工有限公司 | Oil-replenishing-pressure-adjustable hydraulic oil replenishing device of rotary motor of rotary drilling rig |
| CN206158566U (en) * | 2016-10-27 | 2017-05-10 | 宝鸡石油机械有限责任公司 | Carousel hydraulic control drive arrangement |
| CN107420360A (en) * | 2017-06-29 | 2017-12-01 | 长沙学院 | The pressure-releasing type anti-swing control device and method of engineering machinery rotary braking |
| CN215333693U (en) * | 2021-01-25 | 2021-12-28 | 安腾机械科技(无锡)有限公司 | Device for slowing down stop resonance of hydraulic vibration hammer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 214000 No. 168, Qinghong Road, Ehu Town, Xishan District, Wuxi City, Jiangsu Province Applicant after: Itanium Machinery Technology (Wuxi) Co.,Ltd. Address before: No.18, Furong Zhongyi Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Applicant before: Itanium Machinery Technology (Wuxi) Co.,Ltd. |