CN106567894A - Check valve of two-stage stroke singe-push-rod electrohydraulic thruster - Google Patents

Check valve of two-stage stroke singe-push-rod electrohydraulic thruster Download PDF

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Publication number
CN106567894A
CN106567894A CN201610055796.XA CN201610055796A CN106567894A CN 106567894 A CN106567894 A CN 106567894A CN 201610055796 A CN201610055796 A CN 201610055796A CN 106567894 A CN106567894 A CN 106567894A
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CN
China
Prior art keywords
check valve
piston
valve
shell
stroke
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.)
Granted
Application number
CN201610055796.XA
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Chinese (zh)
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CN106567894B (en
Inventor
顾元媛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Hai Jun Electromechanical Equipment Co Ltd
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Individual
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Priority to CN201610055796.XA priority Critical patent/CN106567894B/en
Publication of CN106567894A publication Critical patent/CN106567894A/en
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Publication of CN106567894B publication Critical patent/CN106567894B/en
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Classifications

    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Provided is a two-stage stroke singe-push-rod electric hydraulic thruster. A piston cylinder barrel is arranged between a shell and a motor base. A solenoid valve is in series connection in an oil return channel. A piston is arranged in the piston cylinder barrel, the piston is fixedly connected with a push rod, and one end of the push rod stretches out of the shell. The two-stage stroke singe-push-rod electric hydraulic thruster is characterized in that a check valve is in series connection between the motor base and the piston cylinder barrel, a center column of a check valve shell is sleeved with a valve block, a spring is clamped at the upper end of the check valve shell, and the valve block is correspondingly arranged above an oil inlet hole of the check valve. The check valve divides the total stroke of the electric hydraulic driver into a work braking stroke and a parking braking stroke under the cooperation of the solenoid valve and other structures of the electric hydraulic thruster, so that a brake has the effects of fast applying proper work braking force and gradually generating strong braking force during parking, and meanwhile an energy saving effect is achieved.

Description

A kind of check valve of double-stage stroke list pushrod electric hydraulic pusher
Art
The present invention relates to a kind of double-stage stroke list pushrod electric hydraulic pusher, especially to double-stage stroke function and energy-conservation The check valve for playing a crucial role.
Background technology
At present, known single pushrod electric hydraulic pusher structure is that shell is fixedly connected with motor cabinet, shell and motor Piston bore is fixedly installed between seat, the piston in piston bore is fixedly connected push rod, and shell is stretched out in one end of push rod.Work as motor When motor impeller in seat rotates the pump oil into piston bore, hydraulic oil promotes piston stroking upward；When motor stops revolving Turn, hydraulic oil loses the gap of pressure Jing impellers and returns, descent of piston.The motion of piston drives push rod to act on brake bracket, Remove brake or produce brake force, the Oil pump electrical machinery of the electro hydraulicthruster of this structure is in crane work operation Need not stop rotation, not energy-conservation.
But, because the outdoor crane for using needs to apply rapidly suitable duty power and gradually produces when stopping The powerful parking brake of life, current existing electro hydraulicthruster does not possess this function.Have using annex and electric power liquid Pressure pusher collective effect reaches the technical scheme with both different braking power, but can cause device structure using annex Complicated, debugging is difficult, and the failure of electro hydraulicthruster and annex mismate often occurs in Jing.
The content of the invention
Suitable duty power and gradually produce when stopping strong to allow electro hydraulicthruster to have to apply rapidly The function of big parking brake, needs for total kilometres to be divided into service braking level stroke and stopping brake level stroke, and the present invention is carried For a kind of check valve of double-stage stroke list pushrod electric hydraulic pusher, the check valve can be prevented when Oil pump electrical machinery stops the rotation Only total kilometres under the cooperation of electro hydraulicthruster and brake other structures, are divided into service braking level by hydraulic oil backflow With stopping brake level two-stage stroke, reach brake and there is rapid applying suitable services brake force and gradually produce when stopping strong The purpose of big parking brake, while Oil pump electrical machinery is to rotate during push rod stretches out, with energy-saving effect.
The technical solution adopted for the present invention to solve the technical problems is：Piston bore be arranged on shell and motor cabinet it Between, a magnetic valve of connecting in drainback passage；Piston is set in piston bore, and piston is fixedly connected push rod, and one end of push rod is stretched out Shell, check valve is connected between motor cabinet and piston bore. and valve block is enclosed within the newel of unidirectional valve casing, and jump ring is stuck in unidirectionally The upper end of valve casing, valve block correspondence is in the top of check valve fuel feed hole.
Under the cooperation of electro hydraulicthruster other structures, when magnetic valve blocks the oil circuit of drainback passage, motor band When movable vane wheel rotates the pump oil into piston bore, check valve conducting, piston is up in piston bore, and push rod stretches out；Motor Stop the rotation, check valve blocks oil inlet passage, during magnetic valve blocks drainback passage, piston can be maintained at what is risen Position；Magnetic valve connects oil circuit, and the oil circuit that hydraulic oil is formed by slotted eye is returned, the ability that hydraulic oil is passed through due to slotted eye greatly, Piston is descending rapidly, and push rod is retracted rapidly；Behind the position of descent of piston to closed trench hole, the oil circuit that slotted eye is formed is truncated, living Plug can not be descending by the oil return of slotted eye formation, here it is service braking level stroke, during crane entirely works, piston exists Operation is come and gone in service braking level stroke；Piston during slotted eye drop below, because less oil outlet limits liquid The flow of force feed, piston driving push rod can only be descending with slower speed, makes brake produce the parking brake being gradually increased, Here it is stopping brake level；Reach and total kilometres have been divided into into service braking level and stopping brake level two-stage stroke, brake is rising Heavy-duty machine has rapid applying suitable services brake force and gradually produces powerful parking brake when stopping during entirely working Purpose.
The invention has the beneficial effects as follows, check valve, will under the cooperation of magnetic valve and electro hydraulicthruster other structures The total kilometres of electro hydraulicthruster are divided into service braking level stroke and stopping brake level stroke, make brake have rapid applying Suitable services brake force and the effect of powerful parking brake is gradually produced when stopping, while the effect with energy-conservation.
Description of the drawings
With reference to the accompanying drawings and examples the present invention is further described.
Fig. 1 is the vertical section organigram of the present invention；
Fig. 2 is one-way valve structures schematic diagram；
Fig. 3 is valve block schematic shapes.
1. push rod in figure, 2. piston bore, 3. piston, 4. shell, 5. impeller, 6. motor, 7. motor cabinet, 8. unidirectional Valve, 9. drainback passage, 10. magnetic valve, 11. unidirectional valve casings, 12. check valve fuel feed holes, 13. jump rings, 14. valve blocks.
Specific embodiment
As shown in Figure 1, piston bore (2) is arranged between shell (4) and motor cabinet (7), series connection one in drainback passage (9) Magnetic valve (10)；(2) arrange piston (3) in piston bore, and piston (3) is fixedly connected push rod (1), and one end of push rod (1) is stretched out Shell (4), check valve (8) is connected between motor cabinet (7) and piston bore (2).
In Fig. 2, valve block (14) is enclosed within the newel of unidirectional valve casing (11), and jump ring (13) is stuck in the upper of unidirectional valve casing (11) End, top of valve block (14) correspondence in check valve fuel feed hole (12).
Valve block (14) shown in Fig. 3, when being enclosed within the newel of unidirectional valve casing (11), can cover check valve fuel feed hole (12)。

Claims (1)

1. a kind of double-stage stroke list pushrod electric hydraulic pusher, piston bore is arranged between shell and motor cabinet, and oil return is led to Connect in road a magnetic valve；Piston is set in piston bore, and piston is fixedly connected push rod, and shell is stretched out in one end of push rod, and it is special Levying is：Check valve is connected between motor cabinet and piston bore. and valve block is enclosed within the newel of unidirectional valve casing, and jump ring is stuck in unidirectionally The upper end of valve casing, valve block correspondence is in the top of check valve fuel feed hole.
CN201610055796.XA 2010-03-19 2011-03-18 One-way valve of double-stage stroke single-push-rod electric hydraulic pusher Active CN106567894B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610055796.XA CN106567894B (en) 2010-03-19 2011-03-18 One-way valve of double-stage stroke single-push-rod electric hydraulic pusher

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201010127984 2010-03-19
CN201110074468.1A CN102192212B (en) 2010-03-19 2011-03-18 A kind of piston bore of double-stage stroke list pushrod electric hydraulic pusher
CN201610055796.XA CN106567894B (en) 2010-03-19 2011-03-18 One-way valve of double-stage stroke single-push-rod electric hydraulic pusher

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201110074468.1A Division CN102192212B (en) 2010-03-19 2011-03-18 A kind of piston bore of double-stage stroke list pushrod electric hydraulic pusher

Publications (2)

Publication Number Publication Date
CN106567894A true CN106567894A (en) 2017-04-19
CN106567894B CN106567894B (en) 2020-10-20

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CN201110074468.1A Active CN102192212B (en) 2010-03-19 2011-03-18 A kind of piston bore of double-stage stroke list pushrod electric hydraulic pusher
CN201610055796.XA Active CN106567894B (en) 2010-03-19 2011-03-18 One-way valve of double-stage stroke single-push-rod electric hydraulic pusher

Family Applications Before (1)

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CN201110074468.1A Active CN102192212B (en) 2010-03-19 2011-03-18 A kind of piston bore of double-stage stroke list pushrod electric hydraulic pusher

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108571493A (en) * 2018-07-19 2018-09-25 烟台智本知识产权运营管理有限公司 A kind of electro hydraulicthruster experimental rig
CN111379757A (en) * 2018-12-31 2020-07-07 重庆海峻机电设备有限公司 Motor base

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB943315A (en) * 1961-01-23 1963-12-04 Elmeg A method of manufacturing electro-hydraulic regulating devices
CN2072619U (en) * 1990-01-13 1991-03-06 青岛市平度制动器厂 Autocompensation device of electric hydraulic straight thrust unit
CN2246214Y (en) * 1996-03-20 1997-01-29 关源勇 Single push rod electric hydraulic driving appts
JP2001304205A (en) * 2000-04-18 2001-10-31 Kurimoto Ltd Hydraulic cylinder unit
JP2007131203A (en) * 2005-11-11 2007-05-31 Nabtesco Corp Clearance adjustment device for brake cylinder and brake cylinder provided with it
CN201106595Y (en) * 2007-10-26 2008-08-27 湖南神龙泵阀制造有限公司 Adjustable dual-speed slow-opening slow-closing oil cylinder
CN201212499Y (en) * 2008-06-26 2009-03-25 岳双喜 Cylinder burst proof and anti-leakage electrohydraulic thruster

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20010021U1 (en) * 2001-11-30 2003-05-30 Simeoni S R L "PERFECTED HYDRAULIC JACK"
CN2687397Y (en) * 2004-03-02 2005-03-23 陆平 Buffer oil cylinder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB943315A (en) * 1961-01-23 1963-12-04 Elmeg A method of manufacturing electro-hydraulic regulating devices
CN2072619U (en) * 1990-01-13 1991-03-06 青岛市平度制动器厂 Autocompensation device of electric hydraulic straight thrust unit
CN2246214Y (en) * 1996-03-20 1997-01-29 关源勇 Single push rod electric hydraulic driving appts
JP2001304205A (en) * 2000-04-18 2001-10-31 Kurimoto Ltd Hydraulic cylinder unit
JP2007131203A (en) * 2005-11-11 2007-05-31 Nabtesco Corp Clearance adjustment device for brake cylinder and brake cylinder provided with it
CN201106595Y (en) * 2007-10-26 2008-08-27 湖南神龙泵阀制造有限公司 Adjustable dual-speed slow-opening slow-closing oil cylinder
CN201212499Y (en) * 2008-06-26 2009-03-25 岳双喜 Cylinder burst proof and anti-leakage electrohydraulic thruster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108571493A (en) * 2018-07-19 2018-09-25 烟台智本知识产权运营管理有限公司 A kind of electro hydraulicthruster experimental rig
CN111379757A (en) * 2018-12-31 2020-07-07 重庆海峻机电设备有限公司 Motor base

Also Published As

Publication number Publication date
CN102192212B (en) 2016-01-27
CN106567894B (en) 2020-10-20
CN102192212A (en) 2011-09-21

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Effective date of registration: 20180910

Address after: 400050 2, 2-1, B District, Austrian garden, Kowloon Po, Chongqing.

Applicant after: Chongqing Hai Jun Electromechanical Equipment Co., Ltd.

Address before: 400053 Chongqing Jiulongpo District Huang Jiping Chongqing power company skills training center

Applicant before: Gu Yuanyuan

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