CN109488662A - A kind of step heating-furnace hydraulic control system - Google Patents
A kind of step heating-furnace hydraulic control system Download PDFInfo
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- CN109488662A CN109488662A CN201811494308.0A CN201811494308A CN109488662A CN 109488662 A CN109488662 A CN 109488662A CN 201811494308 A CN201811494308 A CN 201811494308A CN 109488662 A CN109488662 A CN 109488662A
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- pipe
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- valve group
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
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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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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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)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of walking beam furnace hydraulic control system, including main oil pipe, fuel tank, motor, oil pump, jacking system, translation system and overflow valve；The oil inlet of main oil pipe is connected to the oil outlet of fuel tank；The oil outlet of main oil pipe is connected to the oil inlet of jacking system；Oil pump is arranged on main oil pipe；Motor is connect with oil pump；The oil outlet of jacking system passes through time oil pipe and is connected to the oil inlet of translation system；The oil outlet of translation system is connected to by third oil return pipe with fuel tank；Secondary oil pipe is connected to by the second oil return pipe with fuel tank；Overflow valve is arranged on the second oil return pipe；By using above technical scheme, solving the problems, such as that motor still continues working when translation oil cylinder horizontal movement, energy consumption is small, and it is high-efficient, optimize the utilization rate of resource.
Description
Technical field
The present invention relates to Hydraulic Pressure System of Reheating Furnace fields, and in particular to a kind of step heating-furnace hydraulic control system.
Background technique
Currently, as walking beam furnace is in the extensive utilization of various industries, it is energy-saving in industry constantly by weight
Depending on；The walking beam of step heating-furnace hydraulic control system is generally divided into elevating movement and horizontal movement；The horizontal fortune of the prior art
Dynamic to push translation oil cylinder piston motion to carry out by motor power driving hydraulic oil, this just needs motor to be in work shape for a long time
State；It not only causes system oil loine pressure excessive in this way, and energy saving effect can not be played；Although accumulator can
Power compensation of the gravitional force of a part as horizontal movement is provided, but motor power cannot be replaced completely, it is still necessary to is logical
It crosses and obtains other enough power to provide its horizontal movement；How system can be promoted again while reducing the frequency of use of motor
The energy-saving efficiency of system be presently, there are the problem of.
Based on above-mentioned step heating-furnace hydraulic control system, there has been no relevant solutions；Cause
There is an urgent need to seek effective scheme to solve the above problems for this.
Summary of the invention
The purpose of the present invention is shortcomings present in view of the above technology, propose a kind of step heating-furnace hydraulic control
System, it is intended to solve the problems, such as that control system motor in translation oil cylinder horizontal movement still continues working.
The present invention provides a kind of step heating-furnace hydraulic control system, including main oil pipe, fuel tank, motor, oil pump, lifting system
System, translation system and overflow valve；The oil inlet of main oil pipe is connected to the oil outlet of fuel tank；The oil outlet of main oil pipe a1 and lifting
The oil inlet of system B1 is connected to；Oil pump is arranged on main oil pipe；Motor is connect with oil pump；Jacking system oil outlet passes through time oil pipe
It is connected to the oil inlet of translation system；The oil outlet of jacking system is connected to by third oil return pipe with fuel tank 1；Secondary oil pipe passes through the
Two oil return pipes are connected to fuel tank；Overflow valve is arranged on the second oil return pipe, and overflow valve is used for regulating system pressure.
Further, jacking system includes the first automatically controlled proportional reversing valve group, lifting cylinder and gravity oil return box；Main oil
The oil outlet of pipe is connected to the hydraulic fluid port P of the first automatically controlled proportional reversing valve group；The hydraulic fluid port T of first automatically controlled proportional reversing valve group passes through secondary
Oil pipe is connected to translation system；Lifting cylinder is connected to by oil cylinder pipe with the hydraulic fluid port A of the first automatically controlled proportional reversing valve group；Lifting oil
Cylinder is connected to gravity oil return box, and gravity oil return box is used to store the hydraulic oil squeezed out above lifting cylinder, and exists by gravity
The hydraulic oil below lifting cylinder is released when oil return.
Further, translation system includes the second automatically controlled proportional reversing valve group and translation oil cylinder；Second automatically controlled ratio commutation
The hydraulic fluid port P of valve group is connected to time oil pipe；The hydraulic fluid port T of second automatically controlled proportional reversing valve group is connected to by third oil return pipe with fuel tank；
Oil inlet on the left of translation oil cylinder is connected to the hydraulic fluid port A of the second automatically controlled proportional reversing valve group；Oil outlet on the right side of translation oil cylinder with
The hydraulic fluid port B of second automatically controlled proportional reversing valve group is connected to.
Further, the second bladder type hydropneumatic accumulator is connected on secondary oil pipe, the second bladder type hydropneumatic accumulator is used for will be in secondary oil pipe
Hydraulic oil is stored in the form of gravitional force.
Further, the first bladder type hydropneumatic accumulator is also connected on main oil pipe；First bladder type hydropneumatic accumulator is distinguished by main oil pipe
It is connected to the oil outlet of oil pump and the hydraulic fluid port P of the first automatically controlled proportional reversing valve group；First bladder type hydropneumatic accumulator is located at the oil outlet of oil pump
And first automatically controlled proportional reversing valve group hydraulic fluid port P between, the first bladder type hydropneumatic accumulator in the form of gravitional force for storing up hydraulic oil
It stores away.
Further, overflow valve is pilot operated compound relief valve.
It further, further include unloading overflow valve；The oil outlet of unloading overflow valve is connected to by the first oil return pipe with fuel tank；
The oil inlet of unloading overflow valve is connected to main oil pipe, and is located between the oil outlet and the first bladder type hydropneumatic accumulator of oil pump, and off-load is overflow
Flow off-load or load that valve is used for control oil pump.
Further, oil absorption filter is also connected on main oil pipe；The oil inlet of oil absorption filter and the oil outlet of fuel tank
Connection；The oil outlet of oil absorption filter is connected to the oil inlet of oil pump, and the machinery that oil absorption filter is used to remove in hydraulic oil is miscellaneous
Matter.
Further, oil strainer is also connected on main oil pipe；The oil inlet of oil strainer is connected to the oil outlet of oil pump；
The oil outlet of oil strainer is respectively communicated with the oil inlet of the first bladder type hydropneumatic accumulator and unloading overflow valve, oil strainer by main oil pipe
For removing the pollutant in hydraulic oil.
Further, pressure gauge is also connected on main oil pipe；Pressure gauge is located at the first bladder type hydropneumatic accumulator and the first automatically controlled ratio
Between example commutation valve group hydraulic fluid port P.
By using above technical scheme, hydraulic control system is in stability, control precision, flexibility, economy and can
There is relatively good performance by property etc.；By accumulator and gravity oil return box to the trans-utilization of hydraulic oil gravitional force,
Hydraulic system reduces the dependence to motor power, effectively reduces the consumption of motor and pipeline；Meanwhile passing through the excellent of pipeline
Change, improves the utilization rate of resource, improve the whole control efficiency of system pressure.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Below with reference to attached drawing, the invention will be further described:
Fig. 1 is a kind of step heating-furnace hydraulic control system schematic diagram of the present invention；
Fig. 2 is jacking system schematic diagram of the present invention；
Fig. 3 is translation system schematic diagram of the present invention.
In figure: 1, fuel tank；2, oil absorption filter；3, motor；4, oil pump；5, oil strainer；6, unloading overflow valve；7, bellows
Accumulator；8, pressure gauge；9, the first automatically controlled proportional reversing valve group；10, lifting cylinder；11, gravity oil return box；12, pressure reducing valve；
13, the second automatically controlled proportional reversing valve group；14, translation oil cylinder；A1, main oil pipe；A2, secondary oil pipe；A3, the first oil return pipe；A4, second
Oil return pipe;A5, third oil return pipe;C1, oil cylinder pipe;B1, jacking system；B2, translation system.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1 to Figure 3, the present invention provides a kind of step heating-furnace hydraulic control system, including main oil pipe a1, oil
Case 1, motor 3, oil pump 4, jacking system B1, translation system B2 and overflow valve 12；The oil inlet of main oil pipe a1 and going out for fuel tank 1
Hydraulic fluid port connection；The oil outlet of main oil pipe a1 is connected to the oil inlet of jacking system B1；Oil pump 4 is arranged on main oil pipe a1；Motor 3
It is connect with oil pump 4, motor 3 drives oil pump 4 that hydraulic oil is pumped into main line a1；Jacking system B1 oil outlet pass through time oil pipe a2 with
The oil inlet of translation system B2 is connected to；The oil outlet of jacking system B1 is connected to by third oil return pipe a5 with fuel tank 1；Secondary oil pipe a2
It is connected to by the second oil return pipe a4 with fuel tank 1；Overflow valve 12 is arranged on the second oil return pipe a4, and overflow valve 12 is used for regulating system
Pressure；Specifically, when injection oil, the hydraulic oil in fuel tank 1 is pumped into main line a1 by motor 3 by oil pump 4, and passes through lifting
The oil inlet of system B1 enters jacking system B1；When jacking system B1 emptying, hydraulic oil from the oil outlet of jacking system B1 into
Enter time pipeline a2；The hydraulic oil of secondary pipeline a2 enters translation system B2 by the oil inlet of translation system B2；As translation system B2
When emptying, hydraulic oil enters third oil return pipe a5 from the oil outlet of translation system B2, flows back to fuel tank 1；When system pressure is excessive,
Hydraulic oil flows back to fuel tank from the second oil return pipe a4 by relief valve 12, has the function that release；Through the above scheme, energy consumption
It is small, it is high-efficient, the utilization rate of resource is not only optimized, the stability of hydraulic system is improved, improves system also significantly
Reliability.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, jacking system B1 includes the first automatically controlled ratio
Example commutation valve group 9, lifting cylinder 10 and gravity oil return box 11；The oil outlet of main oil pipe a1 and the first automatically controlled proportional reversing valve group
9 hydraulic fluid port P connection；The hydraulic fluid port T of first automatically controlled proportional reversing valve group 9 passes through time oil pipe a2 and is connected to translation system B2；Lifting oil
Cylinder 10 is connected to by oil cylinder pipe c1 with the hydraulic fluid port A of the first automatically controlled proportional reversing valve group 9；Lifting cylinder 10 and gravity oil return box 11 connect
Logical, gravity oil return box 11 will be gone up and down for storing the hydraulic oil squeezed out above lifting cylinder 10, and by gravity in oil return
The hydraulic oil of 10 lower section of oil cylinder is released；Specifically, when injection oil, the hydraulic fluid port A and hydraulic fluid port P of the first automatically controlled proportional reversing valve group 9 connect
The logical hydraulic oil by 10 top of lifting cylinder is shoved into gravity oil return box 11；When oil return, by hydraulic in gravity oil return box 11
Piston moves downward for the gravitational force urges of oil, and the hydraulic oil of lower section is released lifting cylinder 10 and enters oil cylinder pipe c1；First automatically controlled ratio
The hydraulic fluid port B of example commutation valve group 9 is connected to hydraulic fluid port P, and hydraulic oil carries out emptying by the second oil return pipe a4 of connection；Pass through above-mentioned side
Case improves the resource utilization of system, reduces the consumption of the energy, reduces the loss of motor and pipeline.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, translation system B2 includes the second automatically controlled ratio
Example commutation valve group 13 and translation oil cylinder 14；The hydraulic fluid port P of second automatically controlled proportional reversing valve group 13 is connected to time oil pipe a2；Second is automatically controlled
The hydraulic fluid port T of proportional reversing valve group 13 is connected to by third oil return pipe a5 with fuel tank 1；The oil inlet and second in 14 left side of translation oil cylinder
The hydraulic fluid port A of automatically controlled proportional reversing valve group 13 is connected to；The oil outlet and the second automatically controlled proportional reversing valve group 13 on 14 right side of translation oil cylinder
Hydraulic fluid port B connection；Specifically, the hydraulic fluid port A and hydraulic fluid port P of the second automatically controlled proportional reversing valve group 13 connect when translation oil cylinder 14 injects oil
Logical, hydraulic oil enters the left side of translation oil cylinder 14；When 14 oil return of translation oil cylinder, the hydraulic fluid port B of the second automatically controlled proportional reversing valve group 13
It is connected to hydraulic fluid port P, hydraulic oil injects 14 right side of translation oil cylinder, pushes piston to move downward, by the hydraulic of 14 left side of translation oil cylinder
Oil is released, and flows back to fuel tank by the third oil return pipe a5 being connected to the hydraulic fluid port T of the first automatically controlled proportional reversing valve group 13；Pass through this side
Case, jacking system when emptying, system horizontal can with oiling,.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, the second bellows are connected on secondary oil pipe a2
Accumulator 15, the second bladder type hydropneumatic accumulator 15 in the form of gravitional force for storing the hydraulic oil in secondary oil pipe a2；Specifically
Ground, the rated pressure of the second bladder type hydropneumatic accumulator 7 are 20MPa；The volume of second bladder type hydropneumatic accumulator 7 is 40 ~ 50L；Specifically, second
The gravitional force that bladder type hydropneumatic accumulator 15 stores can be used for the oiling and emptying work of translation oil cylinder 14；It specifically, can be with
Under the idle state of jacking system B1, works independently by the second bladder type hydropneumatic accumulator 15, reduces the dependence to motor 3,
The gravitional force for improving hydraulic oil is converted into the utilization rate of kinetic energy, is more flexible system.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, the first capsule is also connected on main oil pipe a1
Formula accumulator 7；First bladder type hydropneumatic accumulator 7 is respectively communicated with the oil outlet of oil pump 4 by main oil pipe a1 and the first automatically controlled ratio commutates
The hydraulic fluid port P of valve group 9；First bladder type hydropneumatic accumulator 7 be located at oil pump 4 oil outlet and the first automatically controlled proportional reversing valve group 9 hydraulic fluid port P it
Between, the first bladder type hydropneumatic accumulator 7 in the form of gravitional force for storing hydraulic oil；Specifically, due to 10 work of lifting cylinder
As when the instantaneous power that needs it is larger, but the periodic intervals to work are that there was only 15 seconds needs in 1 to 3, such as one minute
Work, thus needs 3 intermittent running of heavy-duty motor；Since heavy-duty motor trivalent lattice are expensive, and motor 3 it is most of all in
Lost motion, waste of energy；First bladder type hydropneumatic accumulator 7 can be when not needing oiling, and motor 3 still works, only will be oily temporary
When be put into the first bladder type hydropneumatic accumulator 7 and store, reduce the requirement to motor 3 in this way；Specifically, the first bladder type hydropneumatic accumulator 7
Rated pressure be 20MPa；The volume of first bladder type hydropneumatic accumulator 7 is 40 ~ 50L.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, overflow valve 12 is pilot operated compound relief valve；
Specifically, overflow valve 12 play the role of overpressure it is excessive when off-load；Specifically, with the reduction local pressure phase of pressure reducing valve
Than overflow valve 12 can be reduced the oil mass in pipeline, reach the pressure of reduction system, to realize the purpose of fuel-economizing.
It preferably, further include unloading overflow valve 6 in the present embodiment as shown in figs. 1 and 3 in conjunction with above scheme；Off-load is overflow
The oil outlet of stream valve 6 is connected to by the first oil return pipe a3 with fuel tank 1；The oil inlet of unloading overflow valve 6 is connected to main oil pipe a1, and
Between the oil outlet and the first bladder type hydropneumatic accumulator 7 of oil pump 4, unloading overflow valve 6 is used for the off-load or load of control oil pump 4；
Specifically, when oil cylinder moves back cylinder, flow system flow exceeds fuel supply flow rate, to make system oil return pressure be unlikely to increase, is overflow using off-load
Stream valve 6 lays down a part of oil and guarantees that system pressure is steady.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, oil suction is also connected on main oil pipe a1
Filter 2；The oil inlet of oil absorption filter 2 is connected to the oil outlet of fuel tank 1；The oil inlet of the oil outlet and oil pump 4 of oil absorption filter 2
Mouth connection, oil absorption filter 2 are used to remove the mechanical admixture in hydraulic oil；Specifically, oil absorption filter 2 can be to avoid mechanical miscellaneous
It is too fast that matter sucking oil pump 4 causes oil pump 4 to be lost.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, oily filtering is also connected on main oil pipe a1
Device 5；The oil inlet of oil strainer 5 is connected to the oil outlet of oil pump 4；The oil outlet of oil strainer 5 is connected respectively by main oil pipe a1
The oil inlet of logical first bladder type hydropneumatic accumulator 7 and unloading overflow valve 6, oil strainer 5 are used to remove the pollutant in hydraulic oil；Specifically
Ground, oil strainer 5 can keep oil cleanliness, it is ensured that the reliability of Hydraulic Elements work.
Preferably, in conjunction with above scheme, as shown in figs. 1 and 3, in the present embodiment, pressure gauge is also connected on main oil pipe a1
8；Pressure gauge 8 is between the first bladder type hydropneumatic accumulator 7 and the first automatically controlled 9 hydraulic fluid port P of proportional reversing valve group；Specifically, pressure gauge 8 can
To be used for real time inspection system current pressure, forewarning function is played.
It preferably, further include electric-control system PLC, for controlling in the present embodiment as shown in figs. 1 and 3 in conjunction with above scheme
Hydraulic system processed makes the high degree of automation of system, and highly reliable, fast response time, precision is high, system stable working performance；
Keep hydraulic system long-term pressure, temperature and liquid automatic control in combination with temperature sensor and pressure sensor etc. simultaneously
Reliability service.
By using above technical scheme, hydraulic control system is in stability, control precision, flexibility, economy and can
There is relatively good performance by property etc.；By accumulator and gravity oil return box to the trans-utilization of hydraulic oil gravitional force,
Hydraulic system reduces the dependence to motor power, effectively reduces the consumption of motor and pipeline；Meanwhile passing through the excellent of pipeline
Change, improves the utilization rate of resource, improve the whole control efficiency of system pressure.
The above, only presently preferred embodiments of the present invention not do limitation in any form to the present invention.It is any ripe
Those skilled in the art is known, without departing from the scope of the technical proposal of the invention, all using technology contents described above
Many possible changes and modifications or equivalent example modified to equivalent change are made to technical solution of the present invention.Therefore, all
It is the content without departing from technical solution of the present invention, any change modification made to the above embodiment of technology according to the present invention,
Equivalent variations and modification belong to the protection scope of the technical program.
Claims (10)
1. a kind of walking beam furnace hydraulic control system, which is characterized in that including main oil pipe (a1), fuel tank (1), motor (3),
Oil pump (4), jacking system (B1), translation system (B2) and overflow valve (12)；The oil inlet of the main oil pipe (a1) with it is described
The oil outlet of fuel tank (1) is connected to；The oil outlet of the main oil pipe (a1) is connected to the oil inlet of the jacking system (B1)；It is described
Oil pump (4) is arranged on the main oil pipe (a1)；The motor (3) connect with the oil pump (4)；The jacking system (B1)
Oil outlet passes through time oil pipe (a2) and is connected to the oil inlet of the translation system (B2)；The oil outlet of the translation system (B2) is logical
Third oil return pipe (a5) is crossed to be connected to fuel tank (1)；The secondary oil pipe (a2) is connected to by the second oil return pipe (a4) with fuel tank (1)；
The overflow valve (12) is arranged on second oil return pipe (a4), and the overflow valve (12) is used for regulating system pressure.
2. walking beam furnace hydraulic control system as described in claim 1, which is characterized in that jacking system (B1) packet
Include the first automatically controlled proportional reversing valve group (9), lifting cylinder (10) and gravity oil return box (11)；The main oil pipe (a1) it is fuel-displaced
Mouth is connected to the hydraulic fluid port P of the described first automatically controlled proportional reversing valve group (9)；The hydraulic fluid port T of the first automatically controlled proportional reversing valve group (9)
It is connected to by the secondary oil pipe (a2) with the translation system (B2)；The lifting cylinder (10) by oil cylinder pipe (c1) with it is described
The hydraulic fluid port A of first automatically controlled proportional reversing valve group (9) is connected to；The lifting cylinder (10) is connected to the gravity oil return box (11),
The gravity oil return box (11) is used to store the hydraulic oil squeezed out above the lifting cylinder (10), and by gravity in oil return
When by below the lifting cylinder (10) hydraulic oil release.
3. walking beam furnace hydraulic control system as claimed in claim 2, which is characterized in that translation system (B2) packet
Include the second automatically controlled proportional reversing valve group (13) and translation oil cylinder (14)；The hydraulic fluid port P of the second automatically controlled proportional reversing valve group (13)
It is connected to the secondary oil pipe (a2)；The hydraulic fluid port T of the second automatically controlled proportional reversing valve group (13) by third oil return pipe (a5) with
Fuel tank (1) connection；The hydraulic fluid port A of oil inlet and the described second automatically controlled proportional reversing valve group (13) on the left of the translation oil cylinder (14)
Connection；Oil outlet on the right side of the translation oil cylinder (14) is connected to the hydraulic fluid port B of the described second automatically controlled proportional reversing valve group (13).
4. walking beam furnace hydraulic control system as claimed in claim 3, which is characterized in that connect on the secondary oil pipe (a2)
It is connected to the second bladder type hydropneumatic accumulator (15), second bladder type hydropneumatic accumulator (15) is used for the hydraulic oil in secondary oil pipe (a2) with gravity
Potential forms store.
5. walking beam furnace hydraulic control system as described in claim 1, which is characterized in that on the main oil pipe (a1) also
It is connected with the first bladder type hydropneumatic accumulator (7)；First bladder type hydropneumatic accumulator (7) is respectively communicated with the oil by the main oil pipe (a1)
Pump the oil outlet of (4) and the hydraulic fluid port P of the first automatically controlled proportional reversing valve group (9)；First bladder type hydropneumatic accumulator (7) is located at institute
It states between the oil outlet of oil pump (4) and the hydraulic fluid port P of the first automatically controlled proportional reversing valve group (9), first bladder type hydropneumatic accumulator
(7) for storing hydraulic oil in the form of gravitional force.
6. walking beam furnace hydraulic control system as described in claim 1, which is characterized in that the overflow valve (12) is first
Conduction overflow valve.
7. such as walking beam furnace hydraulic control system as claimed in any one of claims 1 to 6, which is characterized in that further include unloading
Lotus overflow valve (6)；The oil outlet of the unloading overflow valve (6) is connected to by the first oil return pipe (a3) with the fuel tank (1)；It is described
The oil inlet of unloading overflow valve (6) is connected to the main oil pipe (a1), and is located at the oil outlet and described first of the oil pump (4)
Between bladder type hydropneumatic accumulator (7), the unloading overflow valve (6) is used to control the off-load or load of the oil pump (4).
8. walking beam furnace hydraulic control system as claimed in claim 7, which is characterized in that on the main oil pipe (a1) also
It is connected with oil absorption filter (2)；The oil inlet of the oil absorption filter (2) is connected to the oil outlet of the fuel tank (1)；The suction
The oil outlet of oil strainer (2) is connected to the oil inlet of the oil pump (4), and the oil absorption filter (2) is for removing hydraulic oil
In mechanical admixture.
9. walking beam furnace hydraulic control system as claimed in claim 8, which is characterized in that on the main oil pipe (a1) also
It is connected with oil strainer (5)；The oil inlet of the oil strainer (5) is connected to the oil outlet of the oil pump (4)；The oil filtering
The oil outlet of device (5) is respectively communicated with first bladder type hydropneumatic accumulator (7) and the unloading overflow valve by the main oil pipe (a1)
(6) oil inlet, the oil strainer (5) are used to remove the pollutant in hydraulic oil.
10. walking beam furnace hydraulic control system as claimed in claim 9, which is characterized in that on the main oil pipe (a1)
It is also connected with pressure gauge (8)；The pressure gauge (8) is located at first bladder type hydropneumatic accumulator (7) and changes with the described first automatically controlled ratio
To between valve group (9) hydraulic fluid port P.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494308.0A CN109488662A (en) | 2018-12-07 | 2018-12-07 | A kind of step heating-furnace hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494308.0A CN109488662A (en) | 2018-12-07 | 2018-12-07 | A kind of step heating-furnace hydraulic control system |
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| Publication Number | Publication Date |
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| CN109488662A true CN109488662A (en) | 2019-03-19 |
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| CN201811494308.0A Pending CN109488662A (en) | 2018-12-07 | 2018-12-07 | A kind of step heating-furnace hydraulic control system |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| EP2251299A1 (en) * | 2009-05-15 | 2010-11-17 | HAWE Hydraulik SE | Pressure energy reservoir |
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