CN104806597B - A kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back - Google Patents
A kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back Download PDFInfo
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- CN104806597B CN104806597B CN201510180569.5A CN201510180569A CN104806597B CN 104806597 B CN104806597 B CN 104806597B CN 201510180569 A CN201510180569 A CN 201510180569A CN 104806597 B CN104806597 B CN 104806597B
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- adjuster
- sent
- check valve
- valve
- valve body
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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
- 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
- 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
Abstract
The invention discloses a kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back, including valve body, spool, rotary motor, rotary motor in line check valve, turns round adjuster afterwards, adjuster return check valve is turned round afterwards, it is sent into motor, motor in line check valve is sent into, is sent into adjuster afterwards, it is sent into adjuster return check valve afterwards, hydraulic system unloading one-way valve, shut-off valve, preceding feeding adjuster return check valve, preceding feeding adjuster, preceding revolution adjuster return check valve, preceding revolution adjuster, hydraulic tube piece.Structure of the invention Parameter design and computation is simple, intuitive apparent, and compact-sized, transmission is easy, and control function is good, and performance is stablized.It assembles, is easy to adjust, volume and layout area are small, light-weight.
Description
Technical field
The invention belongs to the designs and manufacturing technology field of the double feed mechanisms of cold pilger mill fluid pressure type dual AC power, specifically
It says, is related to a kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back.
Background technology
Currently with the continuous expansion of domestic and international cold rolling seamless tubing application field, the demand of cold rolling seamless tubing is not yet
Disconnected to increase, cold pilger mill is consequently increased as the equipment for producing cold rolling seamless tubing, demand.Cold pilger mill is by rolling
Roller quantity can be divided into two kinds of two rollers and multiple roll (three rollers, five rollers)；Can be divided into that single receipt is sent, double back list gives by rotary feeding system mode and
Double back is double to send three kinds.Multi-roll mill is generally sent only with single receipt, and duo mill three of the above rolling mode can be used.It adopts
Cold pilger mill rolling efficiency with " double back is double to be sent " is high；And the cold pilger mill of " double back list is sent " is used, rolling quality is good.So mesh
It is preceding also increasingly wider to " double back is double to be sent " and " double back list is sent " the two kinds of applications of rolling mode in duo mill.
Control mechanism for three kinds of rolling modes mainly has fluid pressure type, cam-type (plane, cambered surface) and photo-electric (direct current
Motor, servo motor) etc..Fluid pressure type and cam-type are only used for the rolling mode of " single receipt is sent " at present.Although and photo-electric
Suitable for three kinds of rolling modes, but since " rotary feeding system " action is a kind of intermittent movement, impact is larger, and transmission is unstable, this
Require direct current generator or servo motor that must have prodigious starting torque and rated power, which not only improves setting for manufacturer
Standby cost, and the electricity consumption of user is also increased, it causes energy waste, rolling cost to improve, does not also meet country's promotion
Energy conservation and environmental protection theory.
And fluid pressure type turning transmission system is due to simple in structure, stable drive, easy to adjust, especially manufacturing cost
It the advantages that relatively low with operating power consumption, is still widely used at present.Using the double rolling modes being sent into of dual AC power, can effectively carry
The productivity of high cold pilger mill, and traditional fluid pressure type control mechanism is only used for " single receipt is sent ".And the use just researched and developed in recent years
In " hydraulic control that dual AC power bis- (lists) is sent into, although control principle is novel, drive mechanism is reasonable, through relevant enterprise
The main shortcoming fed back after practical application is：" slide crank valve control device " structure used is more complex, volume and layout
Area is larger, and manufacture (processing, assembly, debugging etc.) is cumbersome, and control performance is not sufficiently stable, and production cost is higher.
Above-mentioned " slide crank valve control device " is substantially to use " crank driving mechanism " and two groups of " stroke type commutation cunnings
The structure of valve " combines.The present invention is exactly to overcome the above disadvantages, to be innovated for original " slide crank valve control device "
Research and development, final a kind of reversing rotary valve for controlling cold pilger mill fluid pressure type dual AC power bis- (lists) feeding of invention, with " a commutation
Rotary valve " substitutes original entire " slide crank valve control device ".
The main shortcoming that the prior art is fed back after relevant enterprise practical application is：" the crank guiding valve control used
Mechanism " structure is more complex, and volume and layout area are larger, and manufacture (processing, assembly, debugging etc.) is cumbersome, and control performance is inadequate
Stablize, production cost is higher.Existing " slide crank valve control device " is substantially to use " crank driving mechanism " and two groups of " rows
The structure of journey type reversing slide valve " combines, so overall structure is huge, manufacturing cost is very high.
Its existing major defect is：
1) it is controlled as a result of 3-position-3-way stroke type reversing slide valve, it is necessary to increase crank driving mechanism, make milling train
It is to move back and forth that head, which synchronizes the convert rotational motion transmitted, so transmission mechanism is more；
2) as a result of two groups of slide valve gears, amount of parts is more, and (mainly five valve blocks, two spools add crank
Transmission mechanism), volume and layout area are larger, and the material and total weight of use are bigger than normal；
3) overall structure and transmission are more complex, and the processing of one-piece crankshaft and each valve block inner cavity is cumbersome, and the device
Assembly, adjustment are inconvenient, and travel parameters design calculating is more loaded down with trivial details, and control performance is not sufficiently stable, and the production cost is very high.
Invention content
In order to overcome defect existing in the prior art, a kind of control cold pilger mill fluid pressure type double back of present invention offer is double to be sent
Reversing rotary valve, carry out innovation research and development for original " slide crank valve control device ", final invention is a kind of for controlling cold rolling
The reversing rotary valve that pipe machine fluid pressure type dual AC power bis- (lists) is sent into substitutes original entire " crank guiding valve with one " reversing rotary valve "
Control mechanism ", to solve the problems, such as above-mentioned shortcoming and deficiency of the existing technology.Its technical solution is as follows：
A kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back, including valve body 1, spool 2, rotary motor 3 return
Turn motor in line check valve 4, it is rear to turn round adjuster 5, it is rear to turn round adjuster return check valve 6, be sent into motor 7, be sent into motor into
Oily check valve 8, it is rear to be sent into adjuster 9, rear feeding adjuster return check valve 10, hydraulic system unloading one-way valve 11, shut-off valve
12, preceding feeding adjuster return check valve 13, preceding feeding adjuster 14, preceding revolution adjuster return check valve 15, preceding revolution tune
Save device 16, hydraulic tube piece 17.
The pressure oil got first by hydraulic pump system, point three tunnels respectively with rotary motor in line check valve 4, be sent into motor
The oil inlet and the P interfaces on valve body 1 of in line check valve 8 are connected, oil outlet and the revolution horse of rotary motor in line check valve 4
Oil inlet up to 3 is connected, the oil outlet of rotary motor 3 divide two-way respectively on valve body 1 P1 interfaces and P1 ' interfaces be connected
It connects, the oil outlet for being sent into motor in line check valve 8 is connected with the oil inlet for being sent into motor 7, and the oil outlet for being sent into motor 7 also divides
Two-way is connected with the oil inlet of P2 interfaces and shut-off valve 12 on valve body 1 respectively, on the oil outlet and valve body 1 of shut-off valve 12
P2 ' interfaces are connected；
Followed by the interface of revolution adjuster 5 is directly connected to the A1 interfaces on valve body 1 afterwards, rear to be sent into connecing for adjuster 9
Mouth is connected with the A2 interfaces on valve body 1；Equally, the interface of preceding revolution adjuster 16 is connected with the A1 ' interfaces on valve body 1,
The preceding interface for being sent into adjuster 14 is connected with the A2 ' interfaces on valve body 1；
The oil inlet that adjuster return check valve 6 is turned round after being finally is connected with the T1 interfaces on valve body 1, and rear revolution is adjusted
The oil outlet of section device return check valve 6 is connected with fuel tank, on the rear oil inlet for being sent into adjuster return check valve 10 and valve body 1
T2 interfaces be connected, the rear oil outlet for being sent into adjuster return check valve 10 is connected with fuel tank；Equally, preceding revolution adjuster
The oil inlet of return check valve 15 is connected with the T1 ' interfaces on valve body 1, the oil outlet of preceding revolution adjuster return check valve 15
It is connected with fuel tank, the preceding oil inlet for being sent into adjuster return check valve 13 is connected with the T2 ' interfaces on valve body 1, preceding feeding
The oil outlet of adjuster return check valve 13 is connected with fuel tank, on the oil inlet and valve body 1 of hydraulic system unloading one-way valve 11
T interfaces be connected, the oil outlet of hydraulic system unloading one-way valve 11 is connected with fuel tank.
Further, the hydraulic tube piece 17 includes oil pipe and pipe fitting.
Preferably, valve body 1 uses small―gap suture fit system, fit clearance to control within 0.02~0.04mm with spool 2,
To ensure its good leakproofness.2 rotating speed n of spool is identical as the mill speed of milling train, highest design speed be n=100 turn/
Point.
Beneficial effects of the present invention：
1) as a result of " cylinder rotary valve device ", controlled motion is that the rotation with head transmission ratio uniform synchronization is transported
It is dynamic, so more loaded down with trivial details crank driving mechanism can be eliminated, and directly use yielding coupling joint transmission；
2) with a rotary valve device instead of former two groups of slide valve gears, major part only has valve body and spool two, so
It enormously simplifies drive mechanism and reduces number of parts, to alleviate total weight, save material；
3) it to the interior hole machined of valve body, can be solved with boring；Vehicle, mill processing can be used to the outer circle of spool；To on spool
Each logical oil groove can carry out milling on vertical knee-type milling machine since required precision is not high by means of circular index formula special fixture, therefore
Simple processing；
4) design of Structural Parameters calculates simple, intuitive apparent, and compact-sized, transmission is easy, and control function is good, and performance is steady
It is fixed.It assembles, is easy to adjust, volume and layout area are small, light-weight, so production cost is very low；
5) technology of the invention is above major due to having the advantages that, so can technical patent be transferred relevant enterprise from now on
Carry out positive popularization and application, it is anticipated that this will generate great economic benefit and social benefit to enterprise and society.
Description of the drawings
Fig. 1 is the transmission principle figure of the double reversing rotary valves sent of present invention control cold pilger mill fluid pressure type double back, wherein 1 valve
Body, 2 spools, 3 rotary motors, 4 rotary motor in line check valves turn round adjuster after 5, adjuster return check valve are turned round after 6,
7 are sent into motor, and 8 are sent into motor in line check valve, and adjuster is sent into after 9, adjuster return check valve, 11 hydraulic pressure systems are sent into after 10
It unites unloading one-way valve, 12 shut-off valves are sent into adjuster return check valve before 13, are sent into adjuster before 14, adjuster is turned round before 15
Return check valve turns round adjuster, 17 hydraulic tube pieces before 16；
Fig. 2 is the structural schematic diagram of cylinder rotary valve device, wherein Fig. 2 a are the main sectional views of reversing rotary valve, and Fig. 2 b are to change
To the sectional view of bowing of rotary valve；
Fig. 3 is each axial section left view that Fig. 2 bows in sectional view, wherein Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d are respectively
Tetra- A-A, B-B, C-C and D-D axial section left views；
Fig. 4 is pipe mill head rotary feeding system and rolling zone schematic diagram.
Specific implementation mode
Technical scheme of the present invention is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the transmission principle figure of the double reversing rotary valves sent of present invention control cold pilger mill fluid pressure type double back.A kind of control
The double reversing rotary valves sent of cold pilger mill fluid pressure type double back, including valve body 1, spool 2, rotary motor 3, rotary motor in line check valve
4, rear to turn round adjuster 5, rear to turn round adjuster return check valve 6, feeding motor 7 is sent into motor in line check valve 8, rear to be sent into
Adjuster 9, it is rear to be sent into adjuster return check valve 10, hydraulic system unloading one-way valve 11, shut-off valve 12, preceding feeding adjuster time
Oily check valve 13, preceding feeding adjuster 14, preceding revolution adjuster return check valve 15, preceding revolution adjuster 16, hydraulic tube piece 17.
The pressure oil got first by hydraulic pump system, point three tunnels respectively with rotary motor in line check valve 4, be sent into motor
The oil inlet and the P interfaces on valve body 1 of in line check valve 8 are connected, oil outlet and the revolution horse of rotary motor in line check valve 4
Oil inlet up to 3 is connected, the oil outlet of rotary motor 3 divide two-way respectively on valve body 1 P1 interfaces and P1 ' interfaces be connected
It connects, the oil outlet for being sent into motor in line check valve 8 is connected with the oil inlet for being sent into motor 7, and the oil outlet for being sent into motor 7 also divides
Two-way is connected with the oil inlet of P2 interfaces and shut-off valve 12 on valve body 1 respectively, on the oil outlet and valve body 1 of shut-off valve 12
P2 ' interfaces are connected；
Followed by the interface of revolution adjuster 5 is directly connected to the A1 interfaces on valve body 1 afterwards, rear to be sent into connecing for adjuster 9
Mouth is connected with the A2 interfaces on valve body 1；Equally, the interface of preceding revolution adjuster 16 is connected with the A1 ' interfaces on valve body 1,
The preceding interface for being sent into adjuster 14 is connected with the A2 ' interfaces on valve body 1；
The oil inlet that adjuster return check valve 6 is turned round after being finally is connected with the T1 interfaces on valve body 1, and rear revolution is adjusted
The oil outlet of section device return check valve 6 is connected with fuel tank, on the rear oil inlet for being sent into adjuster return check valve 10 and valve body 1
T2 interfaces be connected, the rear oil outlet for being sent into adjuster return check valve 10 is connected with fuel tank；Equally, preceding revolution adjuster
The oil inlet of return check valve 15 is connected with the T1 ' interfaces on valve body 1, the oil outlet of preceding revolution adjuster return check valve 15
It is connected with fuel tank, the preceding oil inlet for being sent into adjuster return check valve 13 is connected with the T2 ' interfaces on valve body 1, preceding feeding
The oil outlet of adjuster return check valve 13 is connected with fuel tank, on the oil inlet and valve body 1 of hydraulic system unloading one-way valve 11
T interfaces be connected, the oil outlet of hydraulic system unloading one-way valve 11 is connected with fuel tank.
Above-mentioned each contact is all made of hickey, is respectively equipped with pipe fitting and oil pipe forms hydraulic plumbing system.Due to it is preceding,
The phase angle ω between dead point takes 180 ° afterwards, so the hickey of 1 both sides of valve body is also arranged symmetrically by 180 °.Valve body 1 and valve
The rotary valve that core 2 forms is pressed the horizontal position of Fig. 1 such as and is arranged, other each element rotary motors 3, rotary motor in line check valve 4, after
Adjuster 5 is turned round, it is rear to turn round adjuster return check valve 6, it is sent into motor 7, is sent into motor in line check valve 8, rear be sent into is adjusted
Device 9, it is rear to be sent into adjuster return check valve 10, hydraulic system unloading one-way valve 11, shut-off valve 12, preceding feeding adjuster oil return list
To valve 13, preceding feeding adjuster 14, preceding revolution adjuster return check valve 15, preceding revolution adjuster 16, also as far as possible by such as Fig. 1
Horizontal position arrangement, fluid pressure line 17 can be according to the flexible reasonable Arrangement of Oiltank structure.
" the cylinder rotary valve device " that core of the invention content is made of 2 liang of parts of valve body 1 and spool, as shown in Figure 2.
Valve body 1 uses small―gap suture fit system with spool 2, and fit clearance controls within 0.02~0.04mm, to ensure that its is good
Leakproofness.2 rotating speed n of spool is identical as the mill speed of milling train, and highest design speed is n=100 revs/min.The master of reversing rotary valve
Sectional view F-F and the sectional view E-E that bows are as shown in Fig. 2, each axial section left view A-A, B-B, C-in sectional view of bowing
C and D-D is shown in that Fig. 3 shows.
Wherein valve body 1 is integrally manufactured by wear-resisting spheroidal graphite cast-iron, and endoporus is cylindrical hole, and both sides are arranged symmetrically by 180 °
Totally 14 hickeys, wherein each 6 of the rotary feeding system for forward and backward dead point, is 2 for system unloaded.Valve body
Bottom surface is uniform-distribution with 8 threaded holes, in order to which the rotary valve device is fixed by screw.Spool 2 is integrally manufactured by steel alloy, work
Making surface must quench, to improve its wearability.6 axial lengths and depth all same are dispersed on the working surface of spool
" logical oil groove ", wherein " the logical oil groove of width " 4, " narrow logical oil groove " 2.In the cooperation transmission process of valve body and spool, spool
Left shoulder face plays the role of axially position.The key slot center plane of spool left end and " the logical oil groove of width " axial centre plane weight
It closes, so the keyway has both sides to act on：First, directly being coupled by yielding coupling with head, drive motion turns with a small amount of
Square；Second is that being used as positioning datum when being matched with head motion, that is, meet when head is in rear dead point, the keyway is just
In surface.
In F-F main sectional views of Fig. 2,2 " narrow logical oil grooves " on spool from left to right, be respectively used to " revolution and
The logical oil groove (motor is made to be connected with adjuster) of feeding ".The theoretical value of " narrow logical oil groove " circumferentially logical oily angle is 60 ° (such as Fig. 3
Shown in A-A), it is contemplated that latus rectum (generally φ 20) problem with valve body associated threads interface, actual logical oily angle are less than reason
By value, the actual value for being computed " narrow logical oil groove " circumferentially logical oily angle is 40 ° (as shown in B-B of Fig. 3).
Equally in E-E of Fig. 2 bows sectional view, 2 " the logical oil grooves of width " on spool from left to right, are to be respectively used to back
Turn adjuster and is sent into the logical oil groove (adjuster is made to be connected with oil return pipe) of adjuster " oil return ".D-D in figure 3 is axially cutd open
In the left view of face, there are 2 in 180 ° symmetrical " the logical oil grooves of width ", is (make to be for the logical oil groove of hydraulic system " off-load "
System is connected with oil return pipe).The theoretical value of 4 " the logical oil groove of width " circumferential logical oily angles is 120 ° (as shown in D-D of Fig. 3), equally
The actual value for being computed " the logical oil groove of width " circumferential logical oily angle is 100 ° (as shown in C-C of Fig. 3).
The function of of the invention " reversing rotary valve device " is：Control two revolution, be sent into hydraulic motor oil outlet " open with
Close ", to reach control two oil motors " one turn one is stopped " intermittent rotary motion purpose, two motors are again by respective
Gear pair deceleration transmission after, drive lever and lead screw output, to respectively drive pipe revolution and feeding.And " commutation turns
The control speed (beat) of valve " must be synchronous with the holding of the head speed of service of cold pilger mill or be coordinated, while further through four
Adjuster carrys out the appropriate oil pump capacity size for adjusting two oil motors, is wanted with the angle of revolution and feed to technique that reach adjustment pipe
The purpose asked.
Fig. 4 is pipe mill head rotary feeding system and rolling zone distribution schematic diagram.It corresponds on " cylinder rotary valve ", also requires machine
Rotary feeding system angle of the head in front and back dead point is 60 ° (regions AD and CB of Fig. 4), remaining 240 ° are the rolling zone (AB of Fig. 4
With the regions CD).And the phase angle ω between forward and backward dead point takes 180 °, so the hickey of valve body both sides also presses 180 ° symmetrically
Arrangement.4 " the logical oil grooves of width " are in that 90 ° of orientation are arranged in a circumferential direction with 2 " narrow logical oil grooves ", wherein " being unloaded for system
2 " the logical oil grooves of width " of lotus " are circumferentially arranged symmetrically in 180 °.
The present invention be it is a kind of acted for cold pilger mill fluid pressure type " dual AC power is double to be sent into " or " feedings of dual AC power list " it is special
With hydraulic control device (or element), its essence is " the cylindrical type reversing rotary valves " that are made of two parts of valve body and spool.
Illustrate the operation principle of its control again below for transmission principle figure shown in FIG. 1：
The rotary valve position of diagram is exactly in the revolution at rear dead point and is sent into period (rotary feeding system angular region is 60 °),
Two hydraulic motors are connected by 2 " narrow logical oil grooves " and rear revolution, the rear adjuster that is sent at this time, and other each hydraulic branch quilt
It shuts, to make two hydraulic motors respectively rotate by a certain angle, drives pipe in the revolution and feeding at rear dead point respectively.
After the revolution and feeding at dead point act after 60 ° of Spool rotating, when continuing 120 ° of rotation, rolled for positive stroke
Area's (ranging from 120 °) turns round afterwards at this time, rear two adjusters that are sent into are by first 2 " the logical oil grooves of width " and the oil return pipe equipped with check valve
It connects, makes the trapped fuel that two adjuster inner cavities were originally filled under spring pressure effect, fuel tank is all drained back to, under continuing
Primary working cycles.Simultaneously during this period (range also be 120 °), main oil way of hydraulic system is by the 3rd article " the logical oil groove of width ",
It is connected with another oil return pipe T equipped with check valve, allows the oil that hydraulic pump is got all to flow to fuel tank, make system unloaded, to reduce
The pressure loss and system heat generation.Milling train just completes half of rolling cycle (rear dead point rotary feeding system+positive stroke rolling) in this way.
As a same reason, when spool continues to rotate 60 °, 2 " narrow logical oil grooves " are rotated by lower section to top, make two hydraulic pressure horses
Up to being connected respectively with preceding revolution, preceding feedings adjuster, and other each hydraulic branch are shut, to also make two hydraulic motors each
It rotates by a certain angle, drives pipe in the revolution and feeding at preceding dead point respectively.
It is revesal rolling zone (range is also 120 °), at this time preceding revolution, preceding feeding when same spool continues to rotate 120 °
Two adjusters are also connected with the another two-way oil return pipe equipped with check valve by first 2 " the logical oil grooves of width ", keep two adjuster inner cavities original
The trapped fuel being filled all drains back to fuel tank, to continue working cycles next time under spring pressure effect.Simultaneously herein
Period (range also be 120 °), main oil way of hydraulic system by the 4th article " the logical oil groove of width ", also with another oil return equipped with check valve
Pipe T is connected, and is allowed the oil that hydraulic pump is got all to flow to fuel tank, is made system unloaded.Milling train completes another half of rolling week again in this way
Phase (preceding dead point rotary feeding system+revesal rolling).
In this way when Spool rotating after a week, just complete in a rolling cycle control work of " dual AC power double be sent into " action
Make.When milling train rolling campaign in cycles, the rotary valve of synchronous rotary also just plays control action " in cycles ".
When current dead point feed is adjusted to zero, or the oil circuit come out from feeding motor is closed with shut-off valve 12, then milling train can
Carry out the rolling mode that dual AC power list is sent into.So being somebody's turn to do " rotary valve device " is common to " double back is double to be sent " and " double back list is sent " two kinds of controls
Mode processed, and organic unification has been obtained in structure to two kinds of control modes.
The foregoing is only a preferred embodiment of the present invention, protection scope of the present invention is without being limited thereto, it is any ripe
Those skilled in the art are known in the technical scope of present disclosure, the letter for the technical solution that can be become apparent to
Altered or equivalence replacement are each fallen in protection scope of the present invention.
Claims (4)
1. a kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back, it is characterised in that：Including valve body（1）, spool
（2）, rotary motor（3）, rotary motor in line check valve（4）, adjuster is turned round afterwards（5）, rear to turn round adjuster return check valve
（6）, it is sent into motor（7）, it is sent into motor in line check valve（8）, it is sent into adjuster afterwards（9）, rear to be sent into adjuster return check valve
（10）, hydraulic system unloading one-way valve（11）, shut-off valve（12）, preceding feeding adjuster return check valve（13）, preceding feeding adjusting
Device（14）, preceding revolution adjuster return check valve（15）, preceding revolution adjuster（16）, hydraulic tube piece（17）；
The pressure oil got first by hydraulic pump system, point three tunnels respectively with rotary motor in line check valve（4）, be sent into motor into
Oily check valve（8）Oil inlet and valve body（1）On P interfaces be connected, rotary motor in line check valve（4）Oil outlet with return
Turn motor（3）Oil inlet be connected, rotary motor（3）Oil outlet divide two-way respectively with valve body（1）On P1 interfaces and P1 '
Interface is connected, and is sent into motor in line check valve（8）Oil outlet be sent into motor（7）Oil inlet be connected, be sent into motor
（7）Oil outlet also divide two-way respectively with valve body（1）On P2 interfaces and shut-off valve（12）Oil inlet be connected, shut-off valve
（12）Oil outlet and valve body（1）On P2 ' interfaces be connected；
Adjuster is followed by turned round afterwards（5）Interface and valve body（1）On A1 interfaces be directly connected to, be sent into adjuster afterwards（9）'s
Interface and valve body（1）On A2 interfaces be connected；Equally, preceding revolution adjuster（16）Interface and valve body（1）On A1 ' interfaces
It is connected, preceding feeding adjuster（14）Interface and valve body（1）On A2 ' interfaces be connected；
Adjuster return check valve is turned round after being finally（6）Oil inlet and valve body（1）On T1 interfaces be connected, rear revolution is adjusted
Save device return check valve（6）Oil outlet be connected with fuel tank, it is rear to be sent into adjuster return check valve（10）Oil inlet and valve
Body（1）On T2 interfaces be connected, it is rear to be sent into adjuster return check valve（10）Oil outlet be connected with fuel tank；Equally, it returns
Turn adjuster return check valve（15）Oil inlet and valve body（1）On T1 ' interfaces be connected, turn round adjuster return check valve
（15）Oil outlet be connected with fuel tank, preceding feeding adjuster return check valve（13）Oil inlet and valve body（1）On T2 ' connect
Mouth is connected, preceding feeding adjuster return check valve（13）Oil outlet be connected with fuel tank, hydraulic system unloading one-way valve
（11）Oil inlet and valve body（1）On T interfaces be connected, hydraulic system unloading one-way valve（11）Oil outlet be connected with fuel tank
It connects.
2. the double reversing rotary valves sent of control cold pilger mill fluid pressure type double back according to claim 1, it is characterised in that：It is described
Hydraulic tube piece（17）Including oil pipe and pipe fitting.
3. the double reversing rotary valves sent of control cold pilger mill fluid pressure type double back according to claim 1, it is characterised in that：It is described
Valve body（1）With spool（2）Using small―gap suture fit system, fit clearance is controlled in 0.02~0.04mm.
4. the double reversing rotary valves sent of control cold pilger mill fluid pressure type double back according to claim 1, it is characterised in that：It is described
Spool（2）Highest design speed is n=100 revs/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510180569.5A CN104806597B (en) | 2015-04-16 | 2015-04-16 | A kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180569.5A CN104806597B (en) | 2015-04-16 | 2015-04-16 | A kind of double reversing rotary valves sent of control cold pilger mill fluid pressure type double back |
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|---|---|---|---|---|
| CN105298963B (en) * | 2015-10-30 | 2017-06-16 | 柳州柳工液压件有限公司 | Rotary valve valve rod and control valve |
| CN105545860A (en) * | 2016-01-20 | 2016-05-04 | 浙江大学 | Hydraulic control reversing rotating valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56109906A (en) * | 1980-02-06 | 1981-08-31 | Jidosha Kiki Co Ltd | Flow dividing valve device |
| DE10219719A1 (en) * | 2002-05-02 | 2003-11-27 | Sauer Danfoss Nordborg As Nord | Hydraulic valve arrangement |
| IES20040688A2 (en) * | 2004-10-12 | 2006-04-19 | James J Mcinerney | A fluid control valve |
| CN101598152A (en) * | 2009-06-18 | 2009-12-09 | 卢宇 | Large-flow compact type bi-directional rotary control valve |
| CN102463256A (en) * | 2010-11-09 | 2012-05-23 | 常熟市梅李机械制造有限公司 | Transmission device for feed-in mechanism of cold-rolling pipe mill |
| CN203565494U (en) * | 2013-12-10 | 2014-04-30 | 浙江纺织服装职业技术学院 | Crank slide valve control mechanism of cold pilger mill |
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2015
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