CN207437478U - Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system - Google Patents
Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system Download PDFInfo
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- CN207437478U CN207437478U CN201721213978.1U CN201721213978U CN207437478U CN 207437478 U CN207437478 U CN 207437478U CN 201721213978 U CN201721213978 U CN 201721213978U CN 207437478 U CN207437478 U CN 207437478U
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Abstract
Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system disclosed in the utility model is divided by hydraulic system bend pipe using function：1) including elevator hydraulic motor, inner tube of a tyre hydraulic motor Liang Tiao branches oil inlet and oil return tube loop, the left and right walking in steel pipe with the inner tube of a tyre is moved left and right for steel pipe in bending machine for hoist engine and inner tube of a tyre walking loop；2) inner tube of a tyre cylinder, clamping cylinder and voussoir cylinder circuit, including three inner tube of a tyre cylinder, clamping cylinder, voussoir cylinder branch's oil inlet and oil return tube loops, for support, the clamping of steel pipe one end and release, the lifting of steel pipe and the decentralization to steel pipe inner wall during bend pipe；3) master cylinder and lift cylinder circuit including four lift cylinders, six master cylinders, one branch's oil inlet and oil return tube loop, for outer wall of steel pipe to be made to be close to upper tyre surface and applies moment of flexure to the steel pipe other end, make steel pipe generate plastic deformation.Advantage is that simple in structure, the operation is stable, system failure rate are low.
Description
Technical field
The utility model is related to oxygen mix natural gas power pipe network technology field more particularly to a kind of oxygen mix are natural
Aerodynamic force pipe network big diameter elbow machine hydraulic system.
Background technology
Bending machine is in the oxygen mix natural gas power pipe-networks engineering of large-scale long range, for changing pipeline direction
A kind of mechanical equipment can realize field condition bend pipe operation.Field condition construction operation, site contour landforms are complicated, power
The laying of pipe network pipeline need to be determined according to the basic trend of landform, use big diameter elbow machine in pipeline construction often.But mesh
It is preceding with the Hydraulic Power Transmission System of bend pipe machine equipment, there are design structure is unreasonable, complicated, job insecurity, the system failure
The shortcomings of rate is high tends to the phenomenon that bend pipe finished product damage occur, seriously affects the life of oxygen mix natural gas power pipe network
Produce efficiency.In addition, no less than three workers assistance bend pipe operation on the scene, and bending simultaneously is needed during angle pipe equipment bend pipe operation
Each step is manually operated by worker and completed during tubing, and during each bending, worker is required for the device flag that stops
The crooked place of steel pipe, and the angle that steel pipe is bent every time is come by the data reduction of manual measurement, these operation streams
Journey has all aggravated the workload of worker and has added the error rate of bend pipe finished product, and time-consuming and laborious, operator's labor intensity
It is larger.For the relatively low present situation of current big diameter elbow machine the degree of automation, utility model people has developed big diameter elbow machine
Hydraulic system realizes the hydraulic pressure automation of big diameter elbow process.
Utility model content
For more than the deficiencies in the prior art, the purpose of this utility model is to provide a kind of simple in structure, the operation is stable, is
Failure rate of uniting it is low for oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model is realized using following technical scheme：
Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system, it includes fuel tank, and fuel tank is equipped with liquid
Position liquid thermometer, air filter and temperature sensor, fuel tank is interior to be equipped with tubular heater, further includes hydraulic pump, hydraulic pressure pump inlet
The oil pipe of connection is equipped with oil filter, and the oil pipe tail end of hydraulic pressure pump inlet connection is placed in fuel tank, the oil of hydraulic pump outlet connection
The import of the other end and check valve of pipe connects, and one-way valved outlet is connected with pressure piping filter inlet by oil pipe, pressure
In-line filter outlet is connected with oil inlet pipe, and oil inlet pipe is equipped with six branch's oil inlet pipes, i.e. first branch's oil inlet pipe, second
A branch's oil inlet pipe, the 3rd branch's oil inlet pipe, the 4th branch's oil inlet pipe, the 5th branch's oil inlet pipe, the 6th branch into
Oil pipe；An aerial cooler is further included, the other end of oil pipe of aerial cooler outlet connection is connected with the entrance of filter
It connects, the end of the oil pipe of filter outlet connection is placed in fuel tank, and air cooler air inlet is connected with oil return pipe, the oil return
Pipe be equipped with six branch's oil return pipes, i.e. first branch's oil return pipe, second branch's oil return pipe, the 3rd branch's oil return pipe,
4th branch's oil return pipe, the 5th branch's oil return pipe, the 6th branch's oil return pipe；Further include six 3-position 4-way electromagnetic switch
Valve, ten one-way throttle valves, a hydraulic control one-way valve, an one way sequence valve, further include overflow pipe, one end of overflow pipe with into
Oil pipe is connected, and the other end of overflow pipe is placed in fuel tank, and overflow pipe is equipped with electromagnetic relief valve；
First branch's oil inlet pipe and the other end of first branch's oil return pipe respectively with first 3-position 4-way
Two hydraulic fluid ports of solenoid directional control valve connect, and an oil is respectively connected on the another two hydraulic fluid port of first three-position four-way electromagnetic directional valve
It manages, the other end of an oil pipe in this two oil pipes is connected with first one-way throttle valve, another in this two oil pipes
The other end of oil pipe is connected with second one-way throttle valve, first one-way throttle valve inner tube of a tyre hydraulic pressure with two bending machines respectively
Connected between one chamber of motor by oil pipe, second one-way throttle valve respectively with the inner tube of a tyre hydraulic motor of two bending machines
It is connected between another chamber also by oil pipe；
Second branch's oil inlet pipe and the other end of second branch's oil return pipe respectively with second 3-position 4-way
Two hydraulic fluid ports of solenoid directional control valve connect, and an oil is respectively connected on the another two hydraulic fluid port of second three-position four-way electromagnetic directional valve
It manages, the other end of an oil pipe in this two oil pipes is connected with the 3rd one-way throttle valve, another in this two oil pipes
The other end of oil pipe is connected with the 4th one-way throttle valve, and the one of the elevator hydraulic motor of the 3rd one-way throttle valve and bending machine
It is connected by oil pipe between a chamber, also led between another chamber of the elevator hydraulic motor of the 4th one-way throttle valve and bending machine
Cross oil pipe connection；
3rd branch's oil inlet pipe and the other end of the 3rd branch's oil return pipe respectively with the 3rd 3-position 4-way
Two hydraulic fluid ports of solenoid directional control valve connect, and an oil is respectively connected on the another two hydraulic fluid port of the 3rd three-position four-way electromagnetic directional valve
It manages, the other end of an oil pipe in this two oil pipes is connected with the 5th one-way throttle valve, another in this two oil pipes
The other end of oil pipe is connected with the 6th one-way throttle valve, the rodless cavity of the inner tube of a tyre cylinder of the 5th one-way throttle valve and bending machine it
Between connected by oil pipe, connected between the 6th one-way throttle valve and the rod chamber of the inner tube of a tyre cylinder of bending machine also by oil pipe；
4th branch's oil inlet pipe and the other end of the 4th branch's oil return pipe respectively with the 4th 3-position 4-way
Two hydraulic fluid ports of solenoid directional control valve connect, and an oil is respectively connected on the another two hydraulic fluid port of the 4th three-position four-way electromagnetic directional valve
It manages, the other end of an oil pipe in this two oil pipes is connected with the 7th one-way throttle valve, another in this two oil pipes
The other end of oil pipe is connected with the 8th one-way throttle valve, the rodless cavity of the clamping cylinder of the 7th one-way throttle valve and bending machine it
Between connected by oil pipe, the 8th connects between one-way throttle valve and the rod chamber of the clamping cylinder of bending machine also by oil pipe；
5th branch's oil inlet pipe and the other end of the 5th branch's oil return pipe respectively with the 5th 3-position 4-way
Two hydraulic fluid ports of solenoid directional control valve connect, and an oil is respectively connected on the another two hydraulic fluid port of the 5th three-position four-way electromagnetic directional valve
It manages, the other end of an oil pipe in this two oil pipes is connected with the 9th one-way throttle valve, another in this two oil pipes
The other end of oil pipe is connected with the tenth one-way throttle valve, the input of the other end and hydraulic control one-way valve of the 9th one-way throttle valve
End is connected by oil pipe, is connected between the output terminal of hydraulic control one-way valve and the rodless cavity of the voussoir cylinder of bending machine by oil pipe, the
It is connected between ten one-way throttle valves and the rod chamber of the voussoir cylinder of bending machine also by oil pipe, wherein, the control of hydraulic control one-way valve
Oil pipe between liquefaction road K and one-way throttle valve, voussoir cylinder rod chamber connects；
6th branch's oil inlet pipe and the other end of the 6th branch's oil return pipe respectively with the 6th 3-position 4-way
Two hydraulic fluid ports of solenoid directional control valve connect, and an oil is respectively connected on the another two hydraulic fluid port of the 6th three-position four-way electromagnetic directional valve
Pipe, the other end of an oil pipe in this two oil pipes respectively between the rodless cavity of four lift cylinders, six master cylinders have
Connected between rod cavity, the other end of another oil pipe in this two oil pipes and respectively between the rod chamber of four lift cylinders,
Connected between the rodless cavity of six master cylinders, wherein, another oil pipe between four lift cylinder rod chambers and connect oil pipe
There are one one way sequence valves for oil pipe series connection between six master cylinder rodless cavities and between the oil pipe that is connected.
Advantageous effect：The big diameter elbow machine hydraulic pressure system of oxygen mix natural gas power pipe network disclosed in the utility model
System, is divided by hydraulic system bend pipe using function：1) hoist engine and inner tube of a tyre walking loop, including elevator hydraulic motor, inner tube of a tyre liquid
Pressure motor Liang Tiao branches oil inlet and oil return tube loop moves left and right the left and right walking in steel pipe with the inner tube of a tyre for steel pipe in bending machine；
2) inner tube of a tyre cylinder, clamping cylinder and voussoir cylinder circuit including three inner tube of a tyre cylinder, clamping cylinder, voussoir cylinder branch's oil inlet and oil return tube loops, are used for
Clamping and release, the lifting of the steel pipe and decentralization of support, steel pipe one end during bend pipe to steel pipe inner wall；3) master cylinder and
Lift cylinder circuit, including four lift cylinders, six master cylinders, one branch's oil inlet and oil return tube loop, for being close to outer wall of steel pipe
Tyre surface simultaneously applies moment of flexure to the steel pipe other end, and steel pipe is made to generate plastic deformation.Advantage be simple in structure, the operation is stable, system therefore
Barrier rate is low.
Description of the drawings
Fig. 1 is the bend pipe principle schematic of the utility model；
Fig. 2 is the composition structure diagram of the utility model.
Specific embodiment
The utility model is described in detail with reference to Figure of description, it should be noted that the utility model
Implementation is not limited to following embodiment.
As shown in Figure 1, being the bend pipe principle schematic of the utility model, the oxygen mix natural gas power pipe network is with greatly
Bore bend pipe machine hydraulic system, the operation principle of bending machine are to receive and handle the data of each sensor by programmable controller
And corresponding instruction is sent, the break-make of each valve body electromagnet of hydraulic system is controlled, realizes bend pipe machine equipment to the movement of steel pipe, solid
Actions, the bend pipe processes such as fixed and bend pipe can be divided into four parts：Send pipe → positioning → bend pipe → reset.
1) pipe is sent：Large-diameter steel pipe tubing to be curved is put into from fixture one end in bending machine by worker by sideboom tractor, the inner tube of a tyre
It pierces simultaneously in steel pipe, steel pipe starts bend pipe after being placed into suitable position, by hoist engine steel pipe is pulled to be moved to fixture one end
It is dynamic, after being moved to 300mm stop that pipe is sent to complete.
2) position：Positioning is the set-up procedure before bend pipe, prevents steel pipe from moving.The inner tube of a tyre is in steel pipe to master cylinder one
End walking, is moved to immediately below tire.Then inner tube of a tyre tensioning apparatus supports steel pipe inner wall, it is therefore an objective to prevent that steel pipe goes out during bend pipe
Pipe phenomenon is now suppressed, after completing tensioning.Voussoir cylinder horizontally outward stretches out lifting steel pipe height, one end of clamp steel pipe, purpose
It is to prevent steel pipe from the rotation of itself occurs, positioning is completed.
3) bend pipe：Lift cylinder drives the left end of lower tire to move upwards, and promotes tubing height, and edge on steel pipe is made to be close to tire
Face.The lower tire right end of master cylinder lifting, rises the right end of steel pipe.Fulcrum is played by fixture and upper tire, master cylinder applies curved
Square is plastically deformed steel pipe, and steel pipe is bent out certain angle, and bend pipe is completed.
4) reset：After bend pipe, each hydraulic cylinder is by reverse order successively homing, action before starting to repeat,
Aforesaid operations Xun Huan carries out, until steel pipe reaches total bend pipe angle requirement.
As shown in Fig. 2, being the composition structure diagram of the utility model, the oxygen mix natural gas power pipe network is with greatly
Bore bend pipe machine hydraulic system, it includes fuel tank 1, and fuel tank is equipped with liquid level liquid thermometer 35, air filter 33 and temperature sensing
Device 32, fuel tank is interior to be equipped with tubular heater 34, further includes hydraulic pump 3, and the oil pipe of hydraulic pressure pump inlet connection is equipped with oil filter 2,
The oil pipe tail end of hydraulic pressure pump inlet connection is placed in fuel tank, the other end and the check valve 4 of the oil pipe of hydraulic pump outlet connection into
Mouthful connection, one-way valved outlet connected with 5 import of pressure piping filter by oil pipe, pressure piping filter outlet be connected with into
Oil pipe 27, oil inlet pipe 27 are equipped with six branch's oil inlet pipes, i.e. first branch's oil inlet pipe, 27-1, second branch's oil inlet pipe
27-2, the 3rd branch's oil inlet pipes 27-3, the 4th branch's oil inlet pipe 27-4, the 5th branch's oil inlet pipe the 27-5, the 6th
A branch's oil inlet pipe 27-6；Further include an aerial cooler 30, the other end and mistake of the oil pipe of aerial cooler outlet connection
The entrance of filter 31 is connected, and the end of the oil pipe of the outlet of filter 31 connection is placed in fuel tank, air cooler air inlet connection
There is oil return pipe 28, the oil return pipe is equipped with six branch's oil return pipes, i.e. first 28-1, second point of branch's oil return pipe
Branch oil return pipe 28-2, the 3rd branch's oil return pipe 28-3, the 4th branch's oil return pipe 28-4, the 5th branch's oil return pipe
28-5, the 6th branch's oil return pipes 28-6；Further include six three-position four-way electromagnetic directional valves, ten one-way throttle valves, one
18, one way sequence valves 26 of hydraulic control one-way valve, further include overflow pipe 29, and one end of overflow pipe is connected with oil inlet pipe 27, overflow
The other end of flow tube is placed in fuel tank, and overflow pipe is equipped with electromagnetic relief valve 6；
First branch's oil inlet pipe 27-1 and the other end of first branch's oil return pipe 28-1 are respectively with first
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve 7-1, the another two hydraulic fluid port of first three-position four-way electromagnetic directional valve 7-1
On be respectively connected with an oil pipe, the other end of an oil pipe in this two oil pipes is connected with first one-way throttle valve 8, this two
The other end of another oil pipe in root oil pipe is connected with second one-way throttle valve 9, and first one-way throttle valve 8 is respectively with two
Connected between one chamber of the inner tube of a tyre hydraulic motor 19 of a bending machine by oil pipe, second one-way throttle valve 9 respectively with two
It is connected between another chamber of the inner tube of a tyre hydraulic motor 19 of bending machine also by oil pipe；
Second branch's oil inlet pipe 27-2 and the other end of second branch's oil return pipe 28-2 are respectively with second
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve 7-2, the another two hydraulic fluid port of second three-position four-way electromagnetic directional valve 7-2
On be respectively connected with an oil pipe, the other end of an oil pipe in this two oil pipes is connected with the 3rd one-way throttle valve 10, this
The other end of another oil pipe in two oil pipes is connected with the 4th one-way throttle valve 11, the 3rd one-way throttle valve 10 with it is curved
It is connected between one chamber of the elevator hydraulic motor 20 of pipe machine by oil pipe, the elevator of the 4th one-way throttle valve 11 and bending machine
It is connected between another chamber of hydraulic motor 20 also by oil pipe；
3rd branch's oil inlet pipe 27-3 and the other end of the 3rd branch's oil return pipe 28-3 are respectively with the 3rd
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve 7-3, the another two hydraulic fluid port of the 3rd three-position four-way electromagnetic directional valve 7-3
On be respectively connected with an oil pipe, the other end of an oil pipe in this two oil pipes is connected with the 5th one-way throttle valve 12, this
The other end of another oil pipe in two oil pipes is connected with the 6th one-way throttle valve 13, the 5th one-way throttle valve 12 with it is curved
It is connected between the rodless cavity of the inner tube of a tyre cylinder 21 of pipe machine by oil pipe, the 6th one-way throttle valve 13 and the inner tube of a tyre cylinder 21 of bending machine
It is connected between rod chamber also by oil pipe；
4th branch's oil inlet pipe 27-4 and the other end of the 4th branch's oil return pipe 28-4 are respectively with the 4th
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve 7-4, the another two hydraulic fluid port of the 4th three-position four-way electromagnetic directional valve 7-4
On be respectively connected with an oil pipe, the other end of an oil pipe in this two oil pipes is connected with the 7th one-way throttle valve 14, this
The other end of another oil pipe in two oil pipes is connected with the 8th one-way throttle valve 15, the 7th one-way throttle valve 14 with it is curved
It is connected between the rodless cavity of the clamping cylinder 22 of pipe machine by oil pipe, the 8th one-way throttle valve 15 and the clamping cylinder 22 of bending machine
It is connected between rod chamber also by oil pipe；
5th branch's oil inlet pipe 27-5 and the other end of the 5th branch's oil return pipe 28-5 are respectively with the 5th
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve 7-5, the another two hydraulic fluid port of the 5th three-position four-way electromagnetic directional valve 7-5
On be respectively connected with an oil pipe, the other end of an oil pipe in this two oil pipes is connected with the 9th one-way throttle valve 16, this
The other end of another oil pipe in two oil pipes is connected with the tenth one-way throttle valve 17, the 9th one-way throttle valve 16 it is another
One end is connected with the input terminal of hydraulic control one-way valve 18 by oil pipe, the output terminal of hydraulic control one-way valve 18 and the voussoir cylinder 23 of bending machine
Rodless cavity between connected by oil pipe, also lead between the rod chamber of the voussoir cylinder 23 of the tenth one-way throttle valve 17 and bending machine
Oil pipe connection is crossed, wherein, the oil between the control oil circuit K and one-way throttle valve 17,23 rod chamber of voussoir cylinder of hydraulic control one-way valve 18
Pipe connects；
6th branch's oil inlet pipe 27-6 and the other end of the 6th branch's oil return pipe 28-6 are respectively with the 6th
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve 7-6, the another two hydraulic fluid port of the 6th three-position four-way electromagnetic directional valve 7-6
On be respectively connected with an oil pipe, the other end of an oil pipe in this two oil pipes respectively with the rodless cavity of four lift cylinders 24 it
Between, connect between the rod chambers of six master cylinders 25, the other end of another oil pipe in this two oil pipes with respectively with four
It is connected between the rod chamber of lift cylinder 24, between the rodless cavity of six master cylinders 25, wherein, another oil pipe is in four lift cylinders
Oil pipe series connection between 24 rod chambers and between the oil pipe connected and six 25 rodless cavities of master cylinder and between the oil pipe of connection
There are one one way sequence valves 26.
The utility model hydraulic work system principle：
Oil cylinder in the utility model bend pipe machine hydraulic system selects double-acting type oil cylinder, and hydraulic motor selects radial direction ball
Plunger type hydraulic motor.Divided by hydraulic system bend pipe using function, the utility model hydraulic circuit can be divided into：Hoist engine and the inner tube of a tyre
Walking loop；Inner tube of a tyre cylinder, clamping cylinder and voussoir cylinder circuit；Master cylinder and lift cylinder circuit three parts.
1) hoist engine and inner tube of a tyre walking loop are made of elevator hydraulic motor, inner tube of a tyre hydraulic motor loop, are respectively used to steel
Pipe moves left and right the left and right walking in steel pipe with the inner tube of a tyre in bending machine.Electromagnet YA4, YA14 are powered, and elevator hydraulic motor is just
Turn, windlass device can pull steel pipe to be moved to the left, and electromagnet YA5, YA14 are powered, the reversion of elevator hydraulic motor, hoist engine dress
Putting can pull steel pipe to move right.Electromagnet YA2, YA14 are powered, and inner tube of a tyre hydraulic motor rotates forward, and the inner tube of a tyre can walk to the left, electromagnetism
Iron YA3, YA14 are powered, and inner tube of a tyre hydraulic motor reversion, the inner tube of a tyre can walk to the right.
In hoist engine and inner tube of a tyre walking loop, relief circuit is formed using electromagnetic relief valve, when starting pumping plant engine,
Electromagnet YA1 is powered, hydraulic pump unloading can reduce energy loss, simplied system structure, plays pressure regulation, off-load smooth start
Effect.In addition circuit is using stacked unidirectional throttle valve, can with the flow of bidirectional modulation hydraulic cylinder, during forward flow from it is unidirectional
Valve action, during reverse flow from throttling valve action.
2) inner tube of a tyre cylinder, clamping cylinder and voussoir cylinder circuit are made of inner tube of a tyre cylinder, clamping cylinder, voussoir cylinder circuit, are respectively used to
To the support of steel pipe inner wall, the clamping of steel pipe one end and release, the lifting of steel pipe and decentralization during bend pipe.By controlling respectively
Inner tube of a tyre cylinder, clamping cylinder, voussoir cylinder circuit three position four-way directional control valve magnet switching, realize tensioning apparatus, fixture and voussoir
It is flexible.Since voussoir cylinder needs prolonged thrust horizontally outward enough, so the reversal valve in voussoir cylinder circuit is used instead
The three position four-way directional control valve of Y-shaped function, while add the locking circuit of a hydraulic control one-way valve to carry out pressurize, reduce pressure damage
It loses, improves reliability of the equipment during bend pipe.
3) master cylinder and lift cylinder circuit are made of four lift cylinders, 24, six 25 circuits of master cylinder, are respectively used to make steel
Pipe outer wall is close to tyre surface and applies moment of flexure to the steel pipe other end, and steel pipe is made to generate plastic deformation.Electromagnet YA13, YA14 lead to
Electricity, hydraulic oil enter lift cylinder rod chamber, and lift cylinder is shunk.When lift cylinder rod chamber pressure is more than the setting pressure of one way sequence valve
After force value, hydraulic oil opens one way sequence valve and enters master cylinder rodless cavity, and master cylinder stretches out.Electromagnet YA12, YA14 are powered, liquid
Pressure oil enters lift cylinder rodless cavity and master cylinder rod chamber, flows back to fuel tank through one way sequence valve, lift cylinder is stretched out, and master cylinder is simultaneously
Shrink return.Job order requirement first promotes steel pipe bend pipe again and ensures there be certain carry in master cylinder and lift cylinder circuit
Lift and moment of flexure, so in the loop, an one way sequence valve of connecting between lift cylinder and master cylinder.In lift cylinder hydraulic oil pressure
Power is not enough to complete the enhancing action of steel pipe before opening one way sequence valve, and as steel pipe and upper tyre surface are adjacent to, pressure is enough to beat
After opening sequence valve, master cylinder starts to lift, and plays fulcrum by fixture and upper tire, master cylinder applies the angle that moment of flexure reaches bend pipe
Degree requirement.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modifications, equivalent replacements and improvements are made should be included in the guarantor of the utility model
Within the scope of shield.
Claims (1)
1. oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system, it includes fuel tank (1), and fuel tank is equipped with liquid
Position liquid thermometer (35), air filter (33) and temperature sensor (32), fuel tank is interior to be equipped with tubular heater (34), further includes liquid
Press pump (3), the oil pipe of hydraulic pressure pump inlet connection are equipped with oil filter (2), and the oil pipe tail end of hydraulic pressure pump inlet connection is placed in fuel tank
Interior, the other end of the oil pipe of hydraulic pump outlet connection is connected with the import of check valve (4), one-way valved outlet and pressure piping filtering
Device (5) import is connected by oil pipe；It is characterized in that：
The pressure piping filter outlet is connected with oil inlet pipe (27), and oil inlet pipe (27) is equipped with six branch's oil inlet pipes,
That is first branch's oil inlet pipe (27-1), second branch's oil inlet pipe (27-2), the 3rd branch's oil inlet pipe (27-3),
Four branch's oil inlet pipes (27-4), the 5th branch's oil inlet pipe (27-5), the 6th branch's oil inlet pipe (27-6)；It further includes
One aerial cooler (30), the other end of the oil pipe of aerial cooler outlet connection are connected with the entrance of filter (31),
The end of the oil pipe of filter (31) outlet connection is placed in fuel tank, and air cooler air inlet is connected with oil return pipe (28), described
Oil return pipe be equipped with six branch's oil return pipes, i.e. first branch's oil return pipe (28-1), second branch's oil return pipe (28-
2), the 3rd branch's oil return pipe (28-3), the 4th branch's oil return pipe (28-4), the 5th branch's oil return pipe (28-5),
Six branch's oil return pipes (28-6)；Further include six three-position four-way electromagnetic directional valves, ten one-way throttle valves, a hydraulic control list
To valve (18), an one way sequence valve (26), overflow pipe (290) is further included, one end of overflow pipe is connected with oil inlet pipe (27),
The other end of overflow pipe is placed in fuel tank, and overflow pipe is equipped with electromagnetic relief valve (6)；
First branch's oil inlet pipe (27-1) and the other end of first branch's oil return pipe (28-1) are respectively with first
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve (7-1), the another two of first three-position four-way electromagnetic directional valve (7-1)
An oil pipe is respectively connected on hydraulic fluid port, the other end of an oil pipe in this two oil pipes and first one-way throttle valve (8) are even
It connects, the other end of another oil pipe in this two oil pipes is connected with second one-way throttle valve (9), first one-way throttle valve
(8) connected respectively between a chamber of the inner tube of a tyre hydraulic motor (19) of two bending machines by oil pipe, second one-way throttle
Valve (9) connects between another chamber of the inner tube of a tyre hydraulic motor (19) of two bending machines also by oil pipe respectively；
Second branch's oil inlet pipe (27-2) and the other end of second branch's oil return pipe (28-2) are respectively with second
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve (7-2), the another two of second three-position four-way electromagnetic directional valve (7-2)
An oil pipe is respectively connected on hydraulic fluid port, the other end of an oil pipe in this two oil pipes and the 3rd one-way throttle valve (10) are even
It connects, the other end of another oil pipe in this two oil pipes is connected with the 4th one-way throttle valve (11), the 3rd one-way throttle
It is connected between valve (10) and a chamber of the elevator hydraulic motor (20) of bending machine by oil pipe, the 4th one-way throttle valve (11)
It is connected between another chamber of the elevator hydraulic motor (200) of bending machine also by oil pipe；
3rd branch's oil inlet pipe (27-3) and the other end of the 3rd branch's oil return pipe (28-3) are respectively with the 3rd
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve (7-3), the another two of the 3rd three-position four-way electromagnetic directional valve (7-3)
An oil pipe is respectively connected on hydraulic fluid port, the other end of an oil pipe in this two oil pipes and the 5th one-way throttle valve (12) are even
It connects, the other end of another oil pipe in this two oil pipes is connected with the 6th one-way throttle valve (13), the 5th one-way throttle
It is connected between valve (12) and the rodless cavity of the inner tube of a tyre cylinder (21) of bending machine by oil pipe, the 6th one-way throttle valve (13) and bend pipe
It is connected between the rod chamber of the inner tube of a tyre cylinder (21) of machine also by oil pipe；
4th branch's oil inlet pipe (27-4) and the other end of the 4th branch's oil return pipe (28-4) are respectively with the 4th
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve (7-4), the another two of the 4th three-position four-way electromagnetic directional valve (7-4)
An oil pipe is respectively connected on hydraulic fluid port, the other end of an oil pipe in this two oil pipes and the 7th one-way throttle valve (14) are even
It connects, the other end of another oil pipe in this two oil pipes is connected with the 8th one-way throttle valve (15), the 7th one-way throttle
It is connected between valve (14) and the rodless cavity of the clamping cylinder (22) of bending machine by oil pipe, the 8th one-way throttle valve (15) and bend pipe
It is connected between the rod chamber of the clamping cylinder (22) of machine also by oil pipe；
5th branch's oil inlet pipe (27-5) and the other end of the 5th branch's oil return pipe (28-5) are respectively with the 5th
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve (7-5), the another two of the 5th three-position four-way electromagnetic directional valve (7-5)
An oil pipe is respectively connected on hydraulic fluid port, the other end of an oil pipe in this two oil pipes and the 9th one-way throttle valve (16) are even
It connects, the other end of another oil pipe in this two oil pipes is connected with the tenth one-way throttle valve (17), the 9th one-way throttle
The other end of valve (16) is connected with the input terminal of hydraulic control one-way valve (18) by oil pipe, the output terminal of hydraulic control one-way valve (18) with it is curved
It is connected between the rodless cavity of the voussoir cylinder (23) of pipe machine by oil pipe, the tenth one-way throttle valve (17) and the voussoir cylinder of bending machine
(23) connected between rod chamber also by oil pipe, wherein, the control oil circuit K and one-way throttle valve of hydraulic control one-way valve (18)
(17), the oil pipe connection between voussoir cylinder (23) rod chamber；
6th branch's oil inlet pipe (27-6) and the other end of the 6th branch's oil return pipe (28-6) are respectively with the 6th
Two hydraulic fluid ports connection of a three-position four-way electromagnetic directional valve (7-6), the another two of the 6th three-position four-way electromagnetic directional valve (7-6)
An oil pipe is respectively connected on hydraulic fluid port, the other end of an oil pipe in this two oil pipes nothing with four lift cylinders (24) respectively
Connected between rod cavity, between the rod chamber of six master cylinders (25), the other end of another oil pipe in this two oil pipes with point
It is connected not between the rod chamber of four lift cylinders (24), between the rodless cavity of six master cylinders (25), wherein, another oil pipe
Between four lift cylinder (24) rod chambers and between the oil pipe connected and six master cylinder (25) rodless cavities and the oil pipe that is connected
Between oil pipe series connection there are one one way sequence valve (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213978.1U CN207437478U (en) | 2017-09-21 | 2017-09-21 | Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213978.1U CN207437478U (en) | 2017-09-21 | 2017-09-21 | Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system |
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| Publication Number | Publication Date |
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| CN207437478U true CN207437478U (en) | 2018-06-01 |
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ID=62294639
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721213978.1U Withdrawn - After Issue CN207437478U (en) | 2017-09-21 | 2017-09-21 | Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system |
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| Country | Link |
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| CN (1) | CN207437478U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575426A (en) * | 2017-09-21 | 2018-01-12 | 中国三冶集团有限公司 | Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system |
| CN110005883A (en) * | 2019-04-09 | 2019-07-12 | 雷洋 | A kind of connection method that gas pipeline is not got angry |
| CN111271345A (en) * | 2020-02-27 | 2020-06-12 | 丰铁机械(苏州)有限公司 | Rotary platform hydraulic oil way |
-
2017
- 2017-09-21 CN CN201721213978.1U patent/CN207437478U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575426A (en) * | 2017-09-21 | 2018-01-12 | 中国三冶集团有限公司 | Oxygen mix natural gas power pipe network big diameter elbow machine hydraulic system |
| CN107575426B (en) * | 2017-09-21 | 2023-09-15 | 中国三冶集团有限公司 | Hydraulic system of large-caliber pipe bending machine for oxygen mixed natural gas power pipe network |
| CN110005883A (en) * | 2019-04-09 | 2019-07-12 | 雷洋 | A kind of connection method that gas pipeline is not got angry |
| CN111271345A (en) * | 2020-02-27 | 2020-06-12 | 丰铁机械(苏州)有限公司 | Rotary platform hydraulic oil way |
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