CN108675197A - A kind of hydraulic power unit of hydraulic jack of the driving with mechanical self-latching protective device - Google Patents
A kind of hydraulic power unit of hydraulic jack of the driving with mechanical self-latching protective device Download PDFInfo
- Publication number
- CN108675197A CN108675197A CN201810456636.5A CN201810456636A CN108675197A CN 108675197 A CN108675197 A CN 108675197A CN 201810456636 A CN201810456636 A CN 201810456636A CN 108675197 A CN108675197 A CN 108675197A
- Authority
- CN
- China
- Prior art keywords
- valve
- fuel tank
- pressure
- servo motor
- protective device
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
-
- 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of hydraulic power units of hydraulic jack of the driving with mechanical self-latching protective device, it includes fuel tank, and the top of oil-tank is disposed with servo motor pump group, ratio valve group and electric cabinet；The servo motor pump group includes servo motor, high-pressure plunger pump and shock ring；The servo motor is mounted on top of oil-tank; high-pressure plunger pump is mounted on fuel tank internal; servo motor and high-pressure plunger pump flanged joint; motor shaft is connect with oil pump shaft with shaft coupling; shock ring is added between servo motor and high-pressure plunger pump; the output end of the high-pressure plunger pump is connected by pipeline and ratio valve group, and the ratio valve group is connect with the oil cylinder of the hydraulic jack with mechanical self-latching protective device, and the control cabinet is located at the side of fuel tank.The hydraulic jack of matching strip mechanical self-latching protective device, electromagnet cut off valve realize that band carries support for a long time to jack at an arbitrary position, is provided with pressure-compensated valve, greatly reduces the pressure loss, system heat generation amount is also greatly reduced.
Description
Technical field
The present invention relates to a kind of hydraulic power units of hydraulic jack of the driving with mechanical self-latching protective device, belong to hydraulic pressure skill
Art field.
Background technology
Hydraulic power unit is the power source of the hydraulic jack with mechanical self-latching protective device, is risen when hydraulic jack is withstood on
When dropping operation, the position of real-time drive control jack piston rod, hydraulic power unit is mainly by fuel tank, motor, hydraulic pump, valve member
Etc. compositions hydraulic device, hydraulic power unit is connected with oil cylinder with oil pipe, you can realize piston rod as defined in action, work follow
Ring.
But the hydraulic power unit of the hydraulic jack with mechanical self-latching protective device of the prior art cannot carry branch by band for a long time
Support, security of system can be poor；The fuel delivery of jack is adjusted by adjusting servo spool opening size, constant displacement pump is discharged extra
Flow can cause stress commendable increase, reach the Opening pressure of system safety valve, and overflow oil return box causes system heat generation.
Invention content
To solve the problems, such as that jack hydraulic pumping plant exists in the prior art, the present invention provides a kind of driving band mechanical self-latching
The hydraulic power unit of the hydraulic jack of protective device, the hydraulic jack of matching strip mechanical self-latching protective device, electromagnet cut off valve,
Realize that band carries support for a long time to jack at an arbitrary position, is provided with pressure-compensated valve, greatly reduces the pressure loss, system heat generation
Amount is also greatly reduced.
In order to solve the above-mentioned technical problem, the present invention proposes following technical scheme：A kind of driving band mechanical self-latching protection dress
The hydraulic power unit for the hydraulic jack set, it includes fuel tank, the top of oil-tank be disposed with servo motor pump group, ratio valve group and
Electric cabinet；The servo motor pump group includes servo motor, high-pressure plunger pump and shock ring；The servo motor is mounted on fuel tank
Top, high-pressure plunger pump are mounted on fuel tank internal, servo motor and high-pressure plunger pump flanged joint, and motor shaft is used with oil pump shaft
Shaft coupling connects, and shock ring is added between servo motor and high-pressure plunger pump, the output end of the high-pressure plunger pump passes through pipeline
It is connect with ratio valve group, the ratio valve group is connect with the oil cylinder of the hydraulic jack with mechanical self-latching protective device, the control
Case processed is located at the side of fuel tank.
The side of the fuel tank is additionally provided with liquid thermometer, fuel outlet ball valve, heater；The liquid thermometer passes through outside bolt and fuel tank
Wall is connected, and fuel outlet ball valve is connected by nut with fuel tank interface；The top of oil-tank is additionally provided with high pressure filter, oil return filter
Device, air cleaner, the high pressure filter are mounted on top of oil-tank both sides by fixing bracket, and return filter passes through bolt
Mounted on top of oil-tank center, high pressure filter, return filter and ratio valve group are connected by hydraulic pipeline.
The ratio valve group includes proportional servo valve, pressure-compensated valve, safety overflow valve and check valve, the safety overflow
Valve is mounted on top of oil-tank, and pressure-compensated valve is provided with before the proportional servo valve, is mounted on safety overflow valve, described unidirectional
Valve is mounted on hydraulic pipeline.
The safety overflow valve is equipped with pressure measuring tie-in, and pressure measuring tie-in is connect by cable with pressure gauge.
The method have the advantages that：
1）The hydraulic jack of hydraulic power unit matching strip mechanical self-latching protective device, electromagnet cut off valve, can realize that jack exists
Any position band carries to be supported for a long time.
2）Pressure-compensated valve is provided with before proportional servo valve, on the basis of the charge oil pressure flow for ensureing servo valve, pump
The excess traffic of discharge greatly reduces the pressure loss by the valve overflow oil return box, and system heat generation amount is also greatly reduced.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the overlooking structure diagram of the present invention.
Fig. 3 is the hydraulic principle figure of the present invention.
In figure：Fuel tank 1, servo motor pump group 2, ratio valve group 3, electric cabinet 4, servo motor 5, high-pressure plunger pump 6, damping
Ring 7, liquid thermometer 8, fuel outlet ball valve 9, heater 10, high pressure filter 11, return filter 12, air cleaner 13, ratio are watched
Take valve 14, pressure-compensated valve 15, safety overflow valve 16, check valve 17, pressure measuring tie-in 18, pressure gauge 19.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Such as Fig. 1-3, a kind of hydraulic power unit of hydraulic jack of the driving with mechanical self-latching protective device, it includes fuel tank 1,
1 top layout of the fuel tank has servo motor pump group 2, ratio valve group 3 and electric cabinet 4；The servo motor pump group 2 includes servo
Motor 5, high-pressure plunger pump 6 and shock ring 7；The servo motor 5 is mounted on 1 top of fuel tank, and high-pressure plunger pump 6 is mounted on fuel tank
Inside 1, servo motor 5 and the flanged joint of high-pressure plunger pump 6, motor shaft are connect with oil pump shaft with shaft coupling, servo motor 5 and
Shock ring 7 is added between high-pressure plunger pump 6, the output end of the high-pressure plunger pump 6 is connected by pipeline and ratio valve group 3, institute
It states ratio valve group 3 to connect with the oil cylinder of the hydraulic jack with mechanical self-latching protective device, the control cabinet 4 is located at fuel tank 1
Side.
Further, the side of the fuel tank 1 is additionally provided with liquid thermometer 8, fuel outlet ball valve 9, heater 10；The liquid thermometer 8
It is connected with 1 outer wall of fuel tank by bolt, fuel outlet ball valve 9 is connected by nut with 1 interface of fuel tank；1 top of the fuel tank is also set
There are high pressure filter 11, return filter 12, air cleaner 13, the high pressure filter 11 to be mounted on oil by fixing bracket
1 top both sides of case, return filter 12 are mounted on 1 center of top of fuel tank, high pressure filter 11, return filter 12 by bolt
It is connect by hydraulic pipeline with ratio valve group 3.In the course of work, it can ensure hydraulic station work by using above-mentioned structure
Safety.
Further, the ratio valve group 3 includes proportional servo valve 14, pressure-compensated valve 15, safety overflow valve 16 and list
To valve 17, the safety overflow valve 16 is mounted on top of oil-tank, and pressure-compensated valve 15 is provided with before the proportional servo valve 14, pacifies
On safety overflow valve 16, the check valve 17 is mounted on hydraulic pipeline.By being provided with pressure before proportional servo valve
Recuperation valve on the basis of the charge oil pressure flow for ensureing servo valve, pumps the excess traffic of discharge by the valve overflow oil return box, greatly
Big to reduce the pressure loss, system heat generation amount is also greatly reduced.
Further, the safety overflow valve 16 is equipped with pressure measuring tie-in 18, and pressure measuring tie-in 18 passes through cable and pressure gauge
19 connections.System oil pressure can be understood in time by pressure gauge 18.And then play the role of safeguard protection.
The present invention operation principle be：
Jack jacks, and starts servo motor 5 and drives high-pressure plunger pump 6 to system fuel feeding, opens electromagnet cut off valve, hydraulic oil warp
High-pressure plunger pump 6 is reached jack, is pushed away by high pressure filter 11, pressure-compensated valve 15, proportional servo valve 14, electromagnet cut off valve
Dynamic jack rises.After jacking in place, system closes electromagnet cut off valve, and cut-out jack oil feeding line is locked, and jack is in
Close packing state.Machine security rotating nuts follow hydraulic jack synchronization action, protection construction peace in jacking overall process
Entirely.
Before jack falls, jack mechanical locking device is unclamped, opens electromagnet cut off valve, hydraulic oil ends through electromagnetism
Valve, proportional servo valve 14 return to fuel tank 1, and release jack band, which carries, to fall.In dropping process, 14 valve of proportional servo valve is automatically adjusted
Core opening size controls flow, and after falling in place, system closes electromagnet cut off valve, and cut-out jack oil feeding line is locked, very heavy
Top is in closing packing state.Machine security rotating nuts follow hydraulic jack synchronization action in the overall process of whereabouts, protection
Construction safety.
Through the above description, those skilled in the art completely can be in the model without departing from this invention technological thought
In enclosing, various changes and amendments are carried out all within protection scope of the present invention.The unaccomplished matter of the present invention, belongs to ability
The common knowledge of field technique personnel.
Claims (4)
1. a kind of hydraulic power unit of hydraulic jack of the driving with mechanical self-latching protective device, it is characterised in that：It includes fuel tank
（1）, the fuel tank（1）Top layout has servo motor pump group（2）, ratio valve group（3）And electric cabinet（4）；The servo motor
Pump group（2）Including servo motor（5）, high-pressure plunger pump（6）And shock ring（7）；The servo motor（5）Mounted on fuel tank（1）
Top, high-pressure plunger pump（6）Mounted on fuel tank（1）Inside, servo motor（5）With high-pressure plunger pump（6）With flanged joint, motor
Axis is connect with oil pump shaft with shaft coupling, servo motor（5）With high-pressure plunger pump（6）Between add shock ring（7）, the high-pressure column
Plug pump（6）Output end pass through pipeline and ratio valve group（3）Connection, the ratio valve group（3）With band mechanical self-latching protective device
Hydraulic jack oil cylinder connection, the control cabinet（4）Positioned at fuel tank（1）Side.
2. a kind of hydraulic power unit of hydraulic jack of the driving with mechanical self-latching protective device according to claim 1,
It is characterized in that：The fuel tank（1）Side be additionally provided with liquid thermometer（8）, fuel outlet ball valve（9）, heater（10）；The liquid thermometer
（8）Pass through bolt and fuel tank（1）Outer wall is connected, fuel outlet ball valve（9）Pass through nut and fuel tank（1）Interface is connected；The fuel tank
（1）Top is additionally provided with high pressure filter（11）, return filter（12）, air cleaner（13）, the high pressure filter（11）
It is mounted on fuel tank by fixing bracket（1）Top both sides, return filter（12）It is mounted on fuel tank by bolt（1）In top
Centre, high pressure filter（11）, return filter（12）With ratio valve group（3）It is connected by hydraulic pipeline.
3. a kind of hydraulic power unit of hydraulic jack of the driving with mechanical self-latching protective device according to claim 1,
It is characterized in that：The ratio valve group（3）Including proportional servo valve（14）, pressure-compensated valve（15）, safety overflow valve（16）And list
To valve（17）, the safety overflow valve（16）Mounted on top of oil-tank, the proportional servo valve（14）Before be provided with pressure compensation
Valve（15）, it is mounted on safety overflow valve（16）On, the check valve（17）On hydraulic pipeline.
4. a kind of hydraulic power unit of hydraulic jack of the driving with mechanical self-latching protective device according to claim 1,
It is characterized in that：The safety overflow valve（16）It is equipped with pressure measuring tie-in（18）, pressure measuring tie-in（18）Pass through cable and pressure gauge
（19）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456636.5A CN108675197B (en) | 2018-05-14 | 2018-05-14 | Hydraulic pump station of hydraulic jack driving mechanical self-locking protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456636.5A CN108675197B (en) | 2018-05-14 | 2018-05-14 | Hydraulic pump station of hydraulic jack driving mechanical self-locking protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108675197A true CN108675197A (en) | 2018-10-19 |
| CN108675197B CN108675197B (en) | 2020-07-28 |
Family
ID=63806037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810456636.5A Active CN108675197B (en) | 2018-05-14 | 2018-05-14 | Hydraulic pump station of hydraulic jack driving mechanical self-locking protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108675197B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318807A (en) * | 2021-06-07 | 2021-08-31 | 山东元征行机械设备有限公司 | Semi-fixed hydraulic crusher |
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| CN104863911A (en) * | 2015-05-26 | 2015-08-26 | 天津捷强动力装备有限公司 | Hydraulic circuit used for controlling no-load rotation speed of hydraulic motor to be stable through load-sensitive variable pump |
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| CN107605031A (en) * | 2017-10-19 | 2018-01-19 | 龙岩市海德馨汽车有限公司 | A kind of drainage car and control method with efficient stable manipulation |
| CN207278603U (en) * | 2017-09-01 | 2018-04-27 | 无锡福艾德自动化科技有限公司 | A kind of Multi-cylinder for wire stripper controls hydraulic system |
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| CN103086301A (en) * | 2011-10-27 | 2013-05-08 | 中国化工橡胶桂林有限公司 | Hydraulic anti-descending system for tire carriers |
| CN203021247U (en) * | 2012-12-24 | 2013-06-26 | 中国人民解放军63908部队 | Small combination single-stage large-stroke hydraulic jacking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318807A (en) * | 2021-06-07 | 2021-08-31 | 山东元征行机械设备有限公司 | Semi-fixed hydraulic crusher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108675197B (en) | 2020-07-28 |
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