CN108612688A - A kind of hydraulic control system of bender - Google Patents
A kind of hydraulic control system of bender Download PDFInfo
- Publication number
- CN108612688A CN108612688A CN201810537494.5A CN201810537494A CN108612688A CN 108612688 A CN108612688 A CN 108612688A CN 201810537494 A CN201810537494 A CN 201810537494A CN 108612688 A CN108612688 A CN 108612688A
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- overflow
- oil circuit
- fluid ports
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims description 38
- 239000002828 fuel tank Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 30
- 238000005452 bending Methods 0.000 abstract description 7
- 239000010720 hydraulic oil Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to a kind of hydraulic control system of bender, it is characterised in that：Oil circuit is controlled including working connection, idle running overflow oil circuit and cylinder body；The working connection is connected with cylinder body control oil circuit, and the idle running overflow oil circuit is in parallel with cylinder body control oil circuit by the output end of piping connection working connection；Bending hydraulic control system, structure greatly simplify, and reduce pipeline arrangement, component can focus on an integrated valve block, and structure is compacter, and overall weight can reduce by 3% or more compared with the bender of same specification, bender cost reduces at least 6%, and system acting is sensitive, No leakage, it is stable and reliable in work, and control accuracy is high, since pipeline is few, hydraulic oil stroke is short, so the course of work is generated heat less, noise is small, system pressure is relatively stable, and the pressure loss can be reduced to minimum；In addition the function achieved by the system is more, including pre-bend, bending, the adjusting of bending angle, trouble hunting etc., meet various work requirements.
Description
Technical field
The present invention relates to bender field of hydraulic control more particularly to a kind of hydraulic control system of bender.
Background technology
The domestic hydraulic control system principle for turning round axis Synchronous Bending machine is similar at present, and decades are substantially unchanged, hydraulic package
All it is using domestic general board-like installation valve.Entire hydraulic control valve group quality is larger and power density ratio is low.
The relief circuit of the hydraulic system of existing bender is more complex.In addition, the hydraulic system of existing bender, machine
When under bed is fast, the oil of oil cylinder cavity of resorption passes through the direct oil return box of hydraulic control one-way valve, and few one of controlling unit, safety is insufficient；Back pressure
Adjusting is directly controlled by pressure valve, is easy because card valve causes no work into influence the stability of lathe；Its electric control part
Divide very complicated.
Invention content
The technical problem to be solved in the present invention is to provide a kind of simple in structure, controls reliably, back pressure can be adjusted arbitrarily
Hydraulic control system of bender can solve more complex controlled with back pressure of existing hydraulic control system of bender relief circuit and stablize
Property not high and valve group installation trouble and the problems such as product is heavy, power density ratio is low.
In order to solve the above technical problems, the technical scheme is that：A kind of hydraulic control system of bender, innovative point
It is：Oil circuit is controlled including working connection, idle running overflow oil circuit and cylinder body；The working connection is connected with cylinder body control oil circuit, described
The overflow oil circuit that dallies is in parallel with cylinder body control oil circuit by the output end of piping connection working connection；
The working connection includes main fuel tank, motor and hydraulic pump；The input terminal of the hydraulic pump extends to main oil by pipeline
In case, the motor is connected with hydraulic pump, motor drive hydraulic pump works；
The idle running overflow oil circuit is connected to the output end of hydraulic pump, and idle running overflow oil circuit includes the first overflow valve, normal opened type two
Position two-way electromagnetic valve and the second overflow valve；First overflow valve is connected to the output end of hydraulic pump by pipeline, and described first
Overflow valve is in parallel with normal opened type two-position two-way solenoid valve, is controlled by electromagnet YV5 on the normal opened type two-position two-way solenoid valve；
The normal opened type two-position two-way solenoid valve is connected with the second overflow valve；
The cylinder body control oil circuit includes three position four-way electromagnetic valve, check valve, the first Solenoid ball valve, the second Solenoid ball valve, third
Overflow valve and master cylinder；The P hydraulic fluid ports of the three position four-way electromagnetic valve are connected to the output end of hydraulic pump, three position four-way electromagnetic valve
T hydraulic fluid ports are connected with a service tank；It is controlled by electromagnet YV1 and electromagnet YV2 on the three position four-way electromagnetic valve；The master
Oil cylinder has a pair, and master cylinder includes A hydraulic fluid ports and B hydraulic fluid ports；The A hydraulic fluid ports of the three position four-way electromagnetic valve are connected to list by pipeline
To one end of valve, the other end of the check valve is connected on the A hydraulic fluid ports of two master cylinders；
First Solenoid ball valve, the second Solenoid ball valve and third overflow valve are in parallel；Pass through electromagnetism on first Solenoid ball valve
Iron YV3 is controlled, and is controlled by electromagnet YV4 on second Solenoid ball valve；First Solenoid ball valve, the second Solenoid ball valve and
Third overflow valve shunt circuit one end is connected on the B hydraulic fluid ports of three position four-way electromagnetic valve, first Solenoid ball valve, the second electromagnetism
Ball valve and the other end of third overflow valve shunt circuit are connected on the B hydraulic fluid ports of two master cylinders.
Further, a well strainer is in series between the main fuel tank and hydraulic pump.
Further, one end of the third overflow valve is connected with a speed governing valve.
Further, it is also associated with a fluid-control one-way ball valve on the A hydraulic fluid ports of the master cylinder.
Further, the output end of the hydraulic pump is connected with a pressure test table.
The advantage of the invention is that：
1）Bending hydraulic control system of the present invention, compared to existing bender hydraulic system, structure greatly simplifies, and reduces pipeline
Arrangement, component can focus on an integrated valve block, and structure is compacter, and overall weight can compared with the bender of same specification
3% or more is reduced, bender cost reduces at least 6%, and system acting is sensitive, No leakage, stable and reliable in work, and control accuracy
Height, since pipeline is few, hydraulic oil stroke is short, so the course of work is generated heat less, noise is small, system pressure is relatively stable, pressure damage
Mistake can be reduced to minimum；In addition, the function achieved by the system is more, including pre-bend, bending, bending angle are adjusted, failure inspection
It repaiies, meets various work requirements.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a kind of hydraulic control system of bender of the present invention.
Specific implementation mode
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
A kind of hydraulic control system of bender as shown in Figure 1, including working connection 1, idle running overflow oil circuit 2 and cylinder body control
Oil circuit 3；The working connection 1 is connected with cylinder body control oil circuit 3, and the idle running overflow oil circuit 2 passes through the defeated of piping connection working connection 1
Outlet is in parallel with cylinder body control oil circuit 3.
Working connection 1 includes main fuel tank 11, motor 12 and hydraulic pump 13；The input terminal of the hydraulic pump 13 is prolonged by pipeline
It extends in main fuel tank 11, the motor 12 is connected with hydraulic pump 13, and motor 12 drives hydraulic pump 13 to work.
Idle running overflow oil circuit 2 is connected to the output end of hydraulic pump 13, and idle running overflow oil circuit 2 includes the first overflow valve 21, often
General formula two-position two-way solenoid valve 22 and the second overflow valve 23；First overflow valve 21 is connected to the defeated of hydraulic pump 13 by pipeline
Outlet, first overflow valve 21 is in parallel with normal opened type two-position two-way solenoid valve 22, the normal opened type two-position two-way solenoid valve 22
It is upper to be controlled by electromagnet YV5；The normal opened type two-position two-way solenoid valve 22 is connected with the second overflow valve 23.
It includes three position four-way electromagnetic valve 31, check valve 32, the first Solenoid ball valve 33, the second electromagnetic ball that cylinder body, which controls oil circuit 3,
Valve 34, third overflow valve 35 and master cylinder 36；The P hydraulic fluid ports of the three position four-way electromagnetic valve 31 are connected to the output of hydraulic pump 13
End, the T hydraulic fluid ports of three position four-way electromagnetic valve 31 are connected with a service tank；Pass through electromagnet on the three position four-way electromagnetic valve 31
YV1 is controlled with electromagnet YV2；It includes A hydraulic fluid ports and B hydraulic fluid ports that the master cylinder 36, which has a pair, master cylinder 36,；The 3-position 4-way
The A hydraulic fluid ports of solenoid valve 31 are connected to one end of check valve 32 by pipeline, and the other end of the check valve 32 is connected to two
On the A hydraulic fluid ports of a master cylinder 36.
First Solenoid ball valve 33, the second Solenoid ball valve 34 and third overflow valve 35 are in parallel；On first Solenoid ball valve 33
It is controlled by electromagnet YV3, is controlled by electromagnet YV4 on second Solenoid ball valve 34；First Solenoid ball valve 33,
Two Solenoid ball valves 34 and 35 shunt circuit one end of third overflow valve are connected on the B hydraulic fluid ports of three position four-way electromagnetic valve 31, and described
The other end of 35 shunt circuit of one Solenoid ball valve 33, the second Solenoid ball valve 34 and third overflow valve is connected to two master cylinders
On 36 B hydraulic fluid ports.
A well strainer 14 is in series between main fuel tank 11 and hydraulic pump 13.
One end of third overflow valve 35 is connected with a speed governing valve 36.
A fluid-control one-way ball valve 4 is also associated on the A hydraulic fluid ports of master cylinder 36.
The output end of hydraulic pump 13 is connected with a pressure test table.
The operation principle of the system is as follows：
Dry run：Electromagnet YV1, YV2, YV3, YV4 and YV5 are in off state, and motor-driven hydraulic pump makes main fuel tank
Interior hydraulic oil enters in idle running skimmer circuit, since the normal opened type two-position two-way solenoid valve of electromagnet YV5 controls is in normal open
Logical state realizes the dry run of plate shearing machine.
Under fast：Electromagnet YV1, YV3, YV4, YV5 are powered opening, and YV2 is closed；YV1 is opened, and YV5 is opened, working connection
Hydraulic oil passes through the A hydraulic fluid ports of check valve and master cylinder, the B hydraulic fluid ports of master cylinder by the P hydraulic fluid ports and A hydraulic fluid ports of three position four-way electromagnetic valve
Withdrawing oil then by YV3 control the first Solenoid ball valve and YV4 control the second Solenoid ball valve and both be in open shape
State is flowed back simultaneously under hydraulic oil realization soon.
Work into：Electromagnet YV1, YV4, YV5 are powered opening, and YV2 and YV3 are closed；YV1 is opened, and YV5 is opened, working connection
Hydraulic oil pass through the A hydraulic fluid ports of check valve and master cylinder by the P hydraulic fluid ports of three position four-way electromagnetic valve and A hydraulic fluid ports, master cylinder returns
The second Solenoid ball valve that stream oil is then controlled by YV4 does not cause downstream rate i.e. real slowly by YV3 the first Solenoid ball valves controlled
Showed work into.
Backhaul：Electromagnet YV2, YV5 are powered opening, and YV1, YV3 and YV4 are closed, and YV2 is opened, and YV5 is opened, working connection
Hydraulic oil the first Solenoid ball valve is passed through by the P hydraulic fluid ports of three position four-way electromagnetic valve and B hydraulic fluid ports, the second Solenoid ball valve reaches main oil
The B hydraulic fluid ports of cylinder；The withdrawing oil of the A hydraulic fluid ports of master cylinder flows to fuel tank by hydraulic control one-way valve.
It is the valve group function action table of bender below
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, in above embodiments and description
Description merely illustrates the principles of the invention, and without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (5)
1. a kind of hydraulic control system of bender, it is characterised in that：Including working connection, idle running overflow oil circuit and cylinder body control oil
Road；The working connection and cylinder body control oil circuit connects, the idle running overflow oil circuit by the output end of piping connection working connection and
It is in parallel that cylinder body controls oil circuit；
The working connection includes main fuel tank, motor and hydraulic pump；The input terminal of the hydraulic pump extends to main oil by pipeline
In case, the motor is connected with hydraulic pump, motor drive hydraulic pump works；
The idle running overflow oil circuit is connected to the output end of hydraulic pump, and idle running overflow oil circuit includes the first overflow valve, normal opened type two
Position two-way electromagnetic valve and the second overflow valve；First overflow valve is connected to the output end of hydraulic pump by pipeline, and described first
Overflow valve is in parallel with normal opened type two-position two-way solenoid valve, is controlled by electromagnet YV5 on the normal opened type two-position two-way solenoid valve；
The normal opened type two-position two-way solenoid valve is connected with the second overflow valve；
The cylinder body control oil circuit includes three position four-way electromagnetic valve, check valve, the first Solenoid ball valve, the second Solenoid ball valve, third
Overflow valve and master cylinder；The P hydraulic fluid ports of the three position four-way electromagnetic valve are connected to the output end of hydraulic pump, three position four-way electromagnetic valve
T hydraulic fluid ports are connected with a service tank；It is controlled by electromagnet YV1 and electromagnet YV2 on the three position four-way electromagnetic valve；The master
Oil cylinder has a pair, and master cylinder includes A hydraulic fluid ports and B hydraulic fluid ports；The A hydraulic fluid ports of the three position four-way electromagnetic valve are connected to list by pipeline
To one end of valve, the other end of the check valve is connected on the A hydraulic fluid ports of two master cylinders；
First Solenoid ball valve, the second Solenoid ball valve and third overflow valve are in parallel；Pass through electromagnetism on first Solenoid ball valve
Iron YV3 is controlled, and is controlled by electromagnet YV4 on second Solenoid ball valve；First Solenoid ball valve, the second Solenoid ball valve and
Third overflow valve shunt circuit one end is connected on the B hydraulic fluid ports of three position four-way electromagnetic valve, first Solenoid ball valve, the second electromagnetism
Ball valve and the other end of third overflow valve shunt circuit are connected on the B hydraulic fluid ports of two master cylinders.
2. a kind of hydraulic control system of bender according to claim 1, it is characterised in that：The main fuel tank and hydraulic pump
Between be in series with a well strainer.
3. a kind of hydraulic control system of bender according to claim 1, it is characterised in that：The one of the third overflow valve
End is connected with a speed governing valve.
4. a kind of hydraulic control system of bender according to claim 1, it is characterised in that：The A hydraulic fluid ports of the master cylinder
On be also associated with a fluid-control one-way ball valve.
5. a kind of hydraulic control system of bender according to claim 1, it is characterised in that：The output end of the hydraulic pump
It is connected with a pressure test table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537494.5A CN108612688A (en) | 2018-05-30 | 2018-05-30 | A kind of hydraulic control system of bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537494.5A CN108612688A (en) | 2018-05-30 | 2018-05-30 | A kind of hydraulic control system of bender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108612688A true CN108612688A (en) | 2018-10-02 |
Family
ID=63664383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810537494.5A Pending CN108612688A (en) | 2018-05-30 | 2018-05-30 | A kind of hydraulic control system of bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612688A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003202002A (en) * | 2001-10-30 | 2003-07-18 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Hydraulic circuit of construction machinery |
| CN1512078A (en) * | 2002-12-27 | 2004-07-14 | 上海液二液压件制造有限公司 | Hydraulic system of bending machine |
| CN201110284Y (en) * | 2007-10-10 | 2008-09-03 | 山东泰丰液压设备有限公司 | Hydraulic control valve set for bending machine |
| CN201246357Y (en) * | 2008-05-15 | 2009-05-27 | 上海新力机器厂 | Hydraulic control system of bender |
| JP2010169204A (en) * | 2009-01-23 | 2010-08-05 | Caterpillar Japan Ltd | Hydraulic circuit for hydraulic working machine |
| CN102518613A (en) * | 2011-12-03 | 2012-06-27 | 南京埃尔法电液技术有限公司 | Bender hydraulic system |
| CN104454707A (en) * | 2014-12-09 | 2015-03-25 | 天津金诺鼎液压科技有限公司 | Simple hydraulic system for bending machine |
| CN108050114A (en) * | 2017-12-12 | 2018-05-18 | 南通皋液重工股份有限公司 | A kind of laminate is segmented pressurized hydraulic system |
| CN208311165U (en) * | 2018-05-30 | 2019-01-01 | 保茜雯 | A kind of hydraulic control system of bender |
-
2018
- 2018-05-30 CN CN201810537494.5A patent/CN108612688A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003202002A (en) * | 2001-10-30 | 2003-07-18 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Hydraulic circuit of construction machinery |
| CN1512078A (en) * | 2002-12-27 | 2004-07-14 | 上海液二液压件制造有限公司 | Hydraulic system of bending machine |
| CN201110284Y (en) * | 2007-10-10 | 2008-09-03 | 山东泰丰液压设备有限公司 | Hydraulic control valve set for bending machine |
| CN201246357Y (en) * | 2008-05-15 | 2009-05-27 | 上海新力机器厂 | Hydraulic control system of bender |
| JP2010169204A (en) * | 2009-01-23 | 2010-08-05 | Caterpillar Japan Ltd | Hydraulic circuit for hydraulic working machine |
| CN102518613A (en) * | 2011-12-03 | 2012-06-27 | 南京埃尔法电液技术有限公司 | Bender hydraulic system |
| CN104454707A (en) * | 2014-12-09 | 2015-03-25 | 天津金诺鼎液压科技有限公司 | Simple hydraulic system for bending machine |
| CN108050114A (en) * | 2017-12-12 | 2018-05-18 | 南通皋液重工股份有限公司 | A kind of laminate is segmented pressurized hydraulic system |
| CN208311165U (en) * | 2018-05-30 | 2019-01-01 | 保茜雯 | A kind of hydraulic control system of bender |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20181002 |