CN110261097A - A kind of steam turbine large hydraulic valve performance endurance testing device - Google Patents
A kind of steam turbine large hydraulic valve performance endurance testing device Download PDFInfo
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- CN110261097A CN110261097A CN201910353837.7A CN201910353837A CN110261097A CN 110261097 A CN110261097 A CN 110261097A CN 201910353837 A CN201910353837 A CN 201910353837A CN 110261097 A CN110261097 A CN 110261097A
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
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- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 206010008469 Chest discomfort Diseases 0.000 claims description 15
- 238000010992 reflux Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 241000237858 Gastropoda Species 0.000 claims 1
- 230000002146 bilateral effect Effects 0.000 abstract description 4
- 238000009661 fatigue test Methods 0.000 abstract description 2
- 238000011056 performance test Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 23
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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Abstract
A kind of steam turbine large hydraulic valve performance endurance testing device, belongs to fatigue test device technical field.Including the reversal valve driven by driving mechanism, driving mechanism includes body, the setting mutually worm screw of transmission cooperation, worm gear in body, worm screw is by the motor driven that is mounted on body, worm gear is fixedly attached to Traffic control system set middle and lower part, Traffic control system set is rotatably assorted with body, Traffic control system covers the Traffic control system block of top clamping setting unitary rotation, Traffic control system block and Traffic control system set radially slide cooperation, the fixed concentric cam of close-fitting outside Traffic control system block, concentric cam side and sliding block contact cooperation, and the main valve plug of sliding block and reversal valve is linked connection.A kind of steam turbine large hydraulic valve performance endurance testing device, the performance test by the main valve plug bilateral reciprocation of driving mechanism driving reversal valve, suitable for reversal valve.
Description
Technical field
The invention belongs to fatigue test device technical field, specially a kind of steam turbine large hydraulic valve performance life test
Device.
Background technique
Reversal valve good or not is used, and the device for testing its fatigue operating is needed.Existing hand-operated direction valve leans on and goes to draw manually,
The frequency of drawing is very high, and hand-operated direction valve clamps use to clamping tool, folder when it is curved live, when release, valve is opened, operation
It is primary that work may need two or three minutes to draw, and operation is tired, and working efficiency is low.The spool of existing hand-operated direction valve is to move back and forth, no
It can rotary motion.Spool and valve pocket have gap, if stationary, spool will fall down, and spool, hydraulic oil have
Viscosity, valve is inside with regard to toughness resistance, and oil is dirty, and resistance is bigger, and pulling force needs to increase, and significantly reduces working efficiency.
Summary of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to design to provide a kind of steam turbine large size liquid
The technical solution of pressure valve function life-span test device, by the main valve plug bilateral reciprocation of driving mechanism driving reversal valve, driving
Two sections of isocentric circular arcs are oppositely arranged on the concentric cam of mechanism driving, the transition curve of two sections of isocentric circular arcs is using Archimedes etc.
Fast curve realizes that the speed in reversal valve A, B hydraulic fluid port exchange process is balanced, guarantees that spool opening speed is that constant speed is opened, the dress
Set the performance test suitable for reversal valve.
A kind of steam turbine large hydraulic valve performance endurance testing device, including the commutation driven by driving mechanism
Valve, it is characterised in that the driving mechanism includes body, the setting mutually worm screw of transmission cooperation, worm gear in body, worm screw by
The motor driven being mounted on body, worm gear are fixedly attached to Traffic control system set middle and lower part, and Traffic control system set is matched with body rotation
It closes, Traffic control system covers the Traffic control system block of top clamping setting unitary rotation, and Traffic control system block is radially slided with Traffic control system set
Cooperation, the fixed concentric cam of close-fitting outside Traffic control system block, concentric cam side and sliding block contact cooperation, sliding block and reversal valve
Main valve plug is linked connection.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that setting in Traffic control system set
Vertical tip chute is arranged in the pushing cylinder slided up and down with it, pushing cylinder centre, and the interior setting of vertical tip chute is slidably matched with it
Guide, is correspondingly arranged pin hole one, pin hole two on guide, Traffic control system block, and pin is across pin hole one, pin hole two by Traffic control system
Block, guide are integrally fixedly connected, and push rod is arranged above pushing cylinder, is fixedly connected at the top of push rod with nut, fixed setting at the top of body
Screw rod, nut and screw rod threaded are equipped with pull-up bearing, lower thrust bearing simultaneously between push rod bottom and pushing cylinder upper inside wall
Pass through bolt lock tight fit.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that setting above concentric cam
Lower tray is arranged in overhead gage, lower section, and overhead gage, lower tray are fixed on the machine body；Traffic control system set passes through upper bearing (metal), lower axle respectively
It holds and is rotatably assorted with body.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that sliding axle is installed on sliding block
It consigns, sliding axle is consigned upper setting sliding bearing, and concentric cam and sliding bearing sliding contradict cooperation.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that be arranged on Traffic control system block
U-shaped card slot, Traffic control system, which covers, is correspondingly arranged notch on the casing of two sides, and the notch of U-shaped card slot and Traffic control system set two sides, which slides, to be blocked
Cooperation is connect, Traffic control system set rotation drives Traffic control system block unitary rotation.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that the reversal valve is by shell
Body one, shell two, shell three are cooperatively connected the valve body constituted, setting oil back chamber three and refluxing opening three in shell one, in shell two
Main valve plug is set, commutation valve pocket is equipped in the middle part of main valve plug, forms oil back chamber between main valve plug, commutation valve pocket and shell two
One, commutate chamber A, high pressure chest, commutation chamber B, oil back chamber two, and refluxing opening one, commutation channel A, high pressure oil are correspondingly arranged on shell two
Import, commutation channel B, refluxing opening two, commutation channel A connect pressure flow sensors A, and commutation channel B connects pressure flow sensor
B；When main valve plug moves right, oil back chamber one is connected to commutation chamber A, and high pressure chest is connected to commutation chamber B；Main valve plug is moved to the left
When, commutation chamber A is connected to high pressure chest, and commutation chamber B is connected to oil back chamber two；Rotating disk, rotating disk is arranged in main valve plug left end close-fitting
It is mounted in oil back chamber three, the main valve chamber of main valve plug is connected to the inside rotating disc cavities of rotating disk, setting and inside rotating disc cavities in rotating disk
The whirl spraying mouth of connection, be equipped with valve pocket between main valve plug and shell one, shell two, high pressure chest passes through high pressure runner, valve pocket
Valve pocket through-hole, main valve chamber main valve chamber through-hole be connected to main valve chamber, main valve plug right end is connected by main valve connecting rod and Hooks coupling universal coupling
It connects, Hooks coupling universal coupling is connect with slide block connecting rod, and slide block connecting rod is connect by pipe-menders with sliding block, and sliding block is set with outside it
The connection shell two set horizontally slips cooperation, connects and is equipped with connection shell one on the left of shell two and constitutes connection shell, main valve
Connecting rod, Hooks coupling universal coupling, slide block connecting rod are mounted in connection shell.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that pushing cylinder upper inside wall setting
Lower retaining ring, lower thrust bearing and lower retaining ring gear connect cooperation, and pull-up bearing top is pushed down gland and is tightly connected by bolt lock.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that opposite on concentric cam to set
Two sections of isocentric circular arcs are set, transition curve uses Archimedes's curve of equal velocity.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that in the oil back chamber three
Speed probe is set.
A kind of steam turbine large hydraulic valve performance endurance testing device, it is characterised in that be uniformly arranged in rotating disk
Three whirl spraying mouths being connected to inside rotating disc cavities；Bearing and right spring base are equipped on the left of rotating disk, correspondence is set on the left of shell one
Left spring seat is set, spring is equipped between left spring seat, right spring base, setting contacts cooperation with its elasticity on the left of left spring seat
Top position screw.
A kind of above-mentioned steam turbine large hydraulic valve performance endurance testing device, driving mechanism are driven by a motor worm and wormwheel
Rotation, worm gear rotation drive Traffic control system set rotation, and Traffic control system set rotation drives Traffic control system block, concentric cam integrally to turn
Dynamic, the rotation of concentric raised wheel drives the main valve plug bilateral reciprocation of reversal valve；It is oppositely arranged on the concentric cam of the driving mechanism
The transition curve of two sections of isocentric circular arcs, two sections of isocentric circular arcs uses Archimedes's curve of equal velocity, realizes the exchange of reversal valve A, B hydraulic fluid port
Speed in the process is balanced, guarantees that spool opening speed is that constant speed is opened；The driving mechanism can also adjust the inclined of concentric cam
The heart is away from nut rotates down, and push rod is driven to move down, and push rod pushes pushing cylinder to glide along Traffic control system set inner wall, guide edge
The vertical tip chute slide downward of pushing cylinder, be fixed on pin on guide and drive Traffic control system block connected to it, concentric raised
Wheel is moved to the left together, adjusts its eccentricity, adapts to the testing fatigue of different trips spool；Nut is rotated up, action process
On the contrary.Meanwhile the high pressure oil in high pressure chest cavity is finally sprayed from the whirl spraying mouth in rotating disk by main valve chamber, inside rotating disc cavities,
Rotation disc spins drive rotates together with the main valve plug that its close-fitting connects, and main valve plug will not block, and reduce viscous drag, opens
When state, main valve plug is constantly in rotation status, reduces viscous drag, not easy to wear.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of worm gear device of the present invention；
Fig. 3 is the structural schematic diagram of rotating disk of the present invention；
Fig. 4 is the structural schematic diagram of main valve plug of the present invention；
Fig. 5 is the structural schematic diagram of valve pocket of the present invention；
Fig. 6 is the structural schematic diagram of present invention commutation valve pocket；
Fig. 7 is the schematic perspective view of main valve plug of the present invention；
Fig. 8 is the present invention connection structure diagrammatic cross-section that cam, Traffic control system block, Traffic control system cover with one heart；
Fig. 9 is Traffic control system block diagrammatic cross-section of the present invention；
Figure 10 is Traffic control system block schematic perspective view of the present invention；
Figure 11 is the schematic perspective view of pushing cylinder of the present invention；
Figure 12 is the schematic perspective view of guide of the present invention；
Figure 13 is the schematic perspective view of Traffic control system of the present invention set；
Figure 14 be pushing cylinder of the present invention, Traffic control system set, Traffic control system block connection structure schematic perspective view；
In figure: 1- nut, 2- screw rod, 3- body, 4- push rod, 5- bolt, 6- gland, 7- pull up thrust bearing under bearing, 8-, on 9-
Bearing, 10- pushing cylinder, 11- Traffic control system block, 11a- pin hole two, 12- pin, 13- guide, 13a- pin hole one, 14- vertically tilt cunning
Slot, 15- lower bearing, 16- Traffic control system set, 16a- notch, 17- worm gear, 18-U shape card slot, 19- worm screw, 20- lower tray, 21-
Sliding axle consigns, retaining ring under 22- sliding block, 23- sliding bearing, the concentric cam of 24-, 25- overhead gage, 26-, 27- slide block connecting rod,
28- Hooks coupling universal coupling, 29- main valve connecting rod, 30- connection shell two, 31- pipe-menders, 32- connection shell one, 33- pressure
Flow sensor B, 34- commutation channel B, 35- commutation chamber B, 36- pressure flow sensors A, 37- commutation channel A, 38- commutation chamber
A, 39- oil back chamber one, 40- valve pocket through-hole, 41- main valve chamber through-hole, 42- refluxing opening three, 43- bearing, the right spring base of 44-, 45- bullet
Spring, 46- left spring seat, 47- push up position screw, 48- speed probe, 49- shell one, 50- oil back chamber three, 51- rotating disk, 51a-
Whirl spraying mouth, 52- inside rotating disc cavities, 53- shell two, 54- main valve chamber, 55- valve pocket, 56- high pressure runner, 57- refluxing opening one, 58- master
Spool, 59- high pressure oil inlet, 60- high pressure chest, 61- commutation valve pocket, 62- refluxing opening two, 63- oil back chamber two, 64- shell three,
65- motor.
Specific embodiment
Below in conjunction with Figure of description, the invention will be further described.
As shown, the steam turbine large hydraulic valve performance endurance testing device, including the commutation driven by driving mechanism
Valve, the driving mechanism include body 3, and the setting mutually worm screw 19 of transmission cooperation, worm gear 17 in body 3, worm screw 19 is by pacifying
Motor 65 on body 3 drives, and worm gear 17 is fixedly attached to Traffic control system and covers 16 middle and lower parts, Traffic control system set 16 and body
3 are rotatably assorted, and Traffic control system covers the Traffic control system block 11 of 16 tops clamping setting unitary rotation, Traffic control system block 11 and stroke tune
The whole series 16 radially slide cooperation, the fixed concentric cam 24 of 11 outside close-fitting of Traffic control system block, concentric 24 side of cam and sliding block 22
Cooperation is contacted, sliding block 22 is linked with the main valve plug 58 of reversal valve and connect.
Further, the pushing cylinder 10 slided up and down with it is set in Traffic control system set 16, the vertical inclination of setting among pushing cylinder 10
Sliding slot 14, vertical tip chute 14 is interior to be arranged the guide 13 being slidably matched with it, and correspondence is set on guide 13, Traffic control system block 11
One 13a of pin hole, two 11a of pin hole are set, pin 12 passes through one 13a of pin hole, two 11a of pin hole, and Traffic control system block 11,13 one of guide is solid
It is fixed to connect, push rod 4 is set above pushing cylinder 10, and 4 top of push rod is fixedly connected with nut 1, and screw rod 2, spiral shell are fixedly installed at the top of body 3
Cap 1 and 2 threaded of screw rod are equipped with pull-up bearing 7, lower thrust bearing 8 simultaneously between 10 upper inside wall of 4 bottom of push rod and pushing cylinder
It is locked and is cooperated by bolt 5.
Further, overhead gage 25 is set above concentric cam 24, lower tray 20, overhead gage 25, lower tray 20 is arranged in lower section
It is fixed on body 3；Traffic control system set 16 is rotatably assorted by upper bearing (metal) 9, lower bearing 15 with body 3 respectively.
Further, sliding axle is installed on sliding block 22 and consigns 21, sliding axle, which is consigned, is arranged sliding bearing 23, concentric cam on 21
24 contradict cooperation with the sliding of sliding bearing 23.
Further, U-shaped card slot 18 is set on Traffic control system block 11, and Traffic control system, which covers, is correspondingly arranged notch on 16 two sides casings
The notch 16a that 16a, U-shaped card slot 18 and Traffic control system cover 16 two sides, which is slided, to be engaged by clamping, and 16 rotation of Traffic control system set drives stroke
11 unitary rotation of adjustment block.
Further, the valve body that the reversal valve is made of shell 1, shell 2 53, the mating connection of shell 3 64, shell
Setting oil back chamber 3 50 and refluxing opening 3 42 in body 1, shell 2 53 is interior to be arranged main valve plug 58, cooperates in the middle part of main valve plug 58 and sets
It replaces to valve pocket 61, forms oil back chamber 1, commutation chamber A38, high pressure chest between main valve plug 58, commutation valve pocket 61 and shell 2 53
60, commutate chamber B35, oil back chamber 2 63, and refluxing opening 1, commutation channel A37, high pressure oil inlet are correspondingly arranged on shell 2 53
59, commutate channel B34, refluxing opening 2 62, and commutation channel A37 connects pressure flow sensors A 36, and commutation channel B34 connects pressure current
Quantity sensor B33；When main valve plug 58 moves right, oil back chamber 1 is connected to commutation chamber A38, high pressure chest 60 and commutation chamber B35
Connection；When main valve plug 58 is moved to the left, commutation chamber A38 is connected to high pressure chest 60, and commutation chamber B35 is connected to oil back chamber 2 63；It is main
Rotating disk 51 is arranged in 58 left end close-fitting of spool, and rotating disk 51 is mounted in oil back chamber 3 50, the main valve chamber 54 of main valve plug 58 and rotation
The inside rotating disc cavities 52 of turntable 51 are connected to, and the whirl spraying mouth 51a being connected to inside rotating disc cavities 52, main valve plug 58 and shell are arranged in rotating disk 51
Be equipped with valve pocket 55 between body 1, shell 2 53, high pressure chest 60 by high pressure runner 56, valve pocket 55 valve pocket through-hole 40,
The main valve chamber through-hole 41 of main valve chamber 54 is connected to main valve chamber 54, and 58 right end of main valve plug passes through main valve connecting rod 29 and Hooks coupling universal coupling 28
Connection, Hooks coupling universal coupling 28 are connect with slide block connecting rod 27, and slide block connecting rod 27 is connect by pipe-menders 31 with sliding block 22, sliding
Block 22 and its external connection shell 2 30 being arranged horizontally slip cooperation, and 2 30 left side of connection shell, which is equipped with, connects shell one
32 constitute connection shell, and main valve connecting rod 29, Hooks coupling universal coupling 28, slide block connecting rod 27 are mounted in connection shell.
Further, lower retaining ring 26 is arranged in 10 upper inside wall of pushing cylinder, and lower thrust bearing 8 connects cooperation, upper pulling shaft with lower retaining ring 26 gear
It holds 7 tops and pushes down gland 6 and by the locking connection of bolt 5.
Further, two sections of isocentric circular arcs are oppositely arranged on concentric cam 24, transition curve uses Archimedes's curve of equal velocity.
Further, speed probe 48 is set in the oil back chamber 3 50.
Further, three whirl spraying mouth 51a being connected to inside rotating disc cavities 52 are uniformly arranged in rotating disk 51；51 left side of rotating disk
It is equipped with bearing 43 and right spring base 44, one 49 left side of shell is correspondingly arranged left spring seat 46, left spring seat 46, right spring base
Spring 45 is equipped between 44, setting contacts the top position screw 47 of cooperation with its elasticity on the left of left spring seat 46.
Working principle is as follows: motor 65 drives worm screw 19, worm gear 17 to rotate, and the rotation of worm gear 17 drives Traffic control system set
16 rotations, 16 rotation of Traffic control system set drive Traffic control system block 11,24 unitary rotation of concentric cam, and the concentric rotation of cam 24 drives
58 bilateral reciprocation of main valve plug of reversal valve；It is oppositely arranged two sections of isocentric circular arcs on the concentric cam 24 of the driving mechanism, two
The transition curve of section isocentric circular arc uses Archimedes's curve of equal velocity, realizes that the speed in reversal valve A, B hydraulic fluid port exchange process is equal
Weighing apparatus guarantees that spool opening speed is that constant speed is opened；The driving mechanism can also adjust the eccentricity of concentric cam 24, nut 1 to
Lower rotation drives push rod 4 to move down, and push rod 4 pushes pushing cylinder 10 to cover 16 inner walls along Traffic control system and glides, and guide 13 is along pushing away
14 slide downward of vertical tip chute of cylinder 10, the pin 12 being fixed on guide 13 drive the Traffic control system block being firmly connected with it
11, concentric cam 24 is moved to the left together, adjusts its eccentricity, adapts to the testing fatigue of different trips spool；Nut 1 turns upwards
Dynamic, action process is opposite.Meanwhile the high pressure oil in 60 cavity of high pressure chest passes through high pressure runner 56, main valve chamber 54, inside rotating disc cavities 52
It is finally sprayed from the whirl spraying mouth 51a in rotating disk 51, the rotation of rotating disk 51 drives the main valve plug 58 connecting with its close-fitting to revolve together
Turn, main valve plug 58 will not block, and reduce viscous drag, and when open state, main valve plug 58 is constantly in rotation status, reduces
Viscous drag, it is not easy to wear.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not limited to invent, to the greatest extent
Pipe is with reference to the foregoing embodiments described in detail invention, for those skilled in the art, still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the protection model of invention
Within enclosing.
Claims (10)
1. a kind of steam turbine large hydraulic valve performance endurance testing device, including the reversal valve driven by driving mechanism, feature
It is that the driving mechanism includes body (3), the setting mutually worm screw (19) of transmission cooperation, worm gear (17), snail in body (3)
Bar (19) is driven by the motor (65) being mounted on body (3), and worm gear (17) is fixedly attached to Traffic control system set (16) middle and lower part,
Traffic control system set (16) is rotatably assorted with body (3), the Traffic control system of Traffic control system set (16) top clamping setting unitary rotation
Block (11), Traffic control system block (11) and Traffic control system set (16) radially slide cooperation, and the external close-fitting of Traffic control system block (11) is fixed
Concentric cam (24), concentric cam (24) side and sliding block (22) contact cooperation, the main valve plug (58) of sliding block (22) and reversal valve
Be linked connection.
2. a kind of steam turbine large hydraulic valve performance endurance testing device as described in claim 1, it is characterised in that stroke tune
The pushing cylinder (10) that setting is slided up and down with it in a whole set of (16), pushing cylinder (10) is intermediate to be arranged vertical tip chute (14), vertically inclines
The guide (13) that setting is slidably matched with it in oblique chute (14), guide (13), Traffic control system block are correspondingly arranged pin on (11)
Hole one (13a), pin hole two (11a), pin (12) pass through pin hole one (13a), pin hole two (11a) for Traffic control system block (11), guide
(13) it is integrally fixedly connected, push rod (4) is set above pushing cylinder (10), be fixedly connected at the top of push rod (4) with nut (1), body (3)
Screw rod (2) are fixedly installed in top, nut (1) and screw rod (2) threaded, push rod (4) bottom and pushing cylinder (10) upper inside wall it
Between be equipped with pull-up bearing (7), lower thrust bearing (8) and by bolt (5) locking cooperation.
3. a kind of steam turbine large hydraulic valve performance endurance testing device as described in claim 1, it is characterised in that concentric raised
Setting overhead gage (25) above (24), lower section setting lower tray (20) are taken turns, overhead gage (25), lower tray (20) are fixed on body
(3) on；Traffic control system set (16) is rotatably assorted by upper bearing (metal) (9), lower bearing (15) with body (3) respectively.
4. a kind of steam turbine large hydraulic valve performance endurance testing device as described in claim 1, it is characterised in that sliding block
(22) sliding axle is installed to consign (21) on, sliding axle, which is consigned, is arranged sliding bearing (23) on (21), concentric cam (24) and sliding
Bearing (23) sliding contradicts cooperation.
5. a kind of steam turbine large hydraulic valve performance endurance testing device as described in claim 1, it is characterised in that stroke tune
U-shaped card slot (18) are set in monolith (11), are correspondingly arranged notch (16a), U-shaped card slot on the casing of Traffic control system set (16) two sides
(18) it is engaged by clamping with the sliding of the notch (16a) of Traffic control system set (16) two sides, Traffic control system set (16) rotation drives stroke tune
Monolith (11) unitary rotation.
6. a kind of steam turbine large hydraulic valve performance endurance testing device as described in claim 1, it is characterised in that described
The valve body that reversal valve is made of shell one (49), shell two (53), shell three (64) mating connection, shell one (49) is interior to be arranged back
Oil pocket three (50) and refluxing opening three (42), shell two (53) is interior to be arranged main valve plug (58), is equipped with and changes in the middle part of main valve plug (58)
To valve pocket (61), oil back chamber one (39), commutation chamber A are formed between main valve plug (58), commutation valve pocket (61) and shell two (53)
(38), high pressure chest (60), commutation chamber B(35), oil back chamber two (63), be correspondingly arranged refluxing opening one (57) on shell two (53), change
To channel A(37), high pressure oil inlet (59), commutation channel B(34), refluxing opening two (62), commutate channel A(37) connect pressure flow
Sensors A (36), commutate channel B(34) meet pressure flow sensor B(33)；When main valve plug (58) moves right, oil back chamber one
(39) it is connected to commutation chamber A(38), high pressure chest (60) is connected to commutation chamber B(35)；When main valve plug (58) is moved to the left, commutate chamber
A(38) it is connected to high pressure chest (60), commutate chamber B(35) it is connected to oil back chamber two (63)；The setting rotation of main valve plug (58) left end close-fitting
Turntable (51), rotating disk (51) are mounted in oil back chamber three (50), main valve chamber (54) and rotating disk (51) of main valve plug (58)
Inside rotating disc cavities (52) connection, is arranged the whirl spraying mouth (51a) being connected to inside rotating disc cavities (52) in rotating disk (51), main valve plug (58) and
It is equipped between shell one (49), shell two (53) valve pocket (55), high pressure chest (60) passes through high pressure runner (56) and main valve chamber
(54) be connected to, main valve plug (58) right end is connect by main valve connecting rod (29) with Hooks coupling universal coupling (28), Hooks coupling universal coupling (28) and
Slide block connecting rod (27) connection, slide block connecting rod (27) are connect by pipe-menders (31) with sliding block (22), sliding block (22) and its
The connection shell two (30) of outside setting horizontally slips cooperation, is equipped on the left of connection shell two (30) and connects shell one (32)
Connection shell is constituted, main valve connecting rod (29), Hooks coupling universal coupling (28), slide block connecting rod (27) are mounted in connection shell.
7. a kind of steam turbine large hydraulic valve performance endurance testing device as claimed in claim 2, it is characterised in that pushing cylinder
(10) upper inside wall is arranged lower retaining ring (26), and lower thrust bearing (8) and lower retaining ring (26) gear connect cooperation, pull-up bearing (7) top pressure
Firmly gland (6) and by bolt (5) locking connection.
8. a kind of steam turbine large hydraulic valve performance endurance testing device as claimed in claim 2, it is characterised in that concentric raised
Two sections of isocentric circular arcs are oppositely arranged on wheel (24), the transition curve of two sections of isocentric circular arcs uses Archimedes's curve of equal velocity.
9. a kind of steam turbine large hydraulic valve performance endurance testing device as claimed in claim 8, it is characterised in that described
Speed probe (48) are set in oil back chamber three (50).
10. a kind of steam turbine large hydraulic valve performance endurance testing device as claimed in claim 8, it is characterised in that rotating disk
(51) three whirl spraying mouths (51a) being connected to inside rotating disc cavities (52) are uniformly arranged on；Bearing is equipped on the left of rotating disk (51)
(43) and right spring base (44), shell one (49) left side are correspondingly arranged left spring seat (46), left spring seat (46), right spring base
(44) it is equipped between spring (45), setting contacts the top position screw (47) of cooperation with its elasticity on the left of left spring seat (46).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910353837.7A CN110261097A (en) | 2019-08-08 | 2019-08-08 | A kind of steam turbine large hydraulic valve performance endurance testing device |
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| CN201910353837.7A CN110261097A (en) | 2019-08-08 | 2019-08-08 | A kind of steam turbine large hydraulic valve performance endurance testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272416A (en) * | 2020-04-08 | 2020-06-12 | 缙云普层泵阀科技有限公司 | Pressure detection equipment for two-position four-way valve |
| CN111365313A (en) * | 2020-03-16 | 2020-07-03 | 杭州博力液控科技有限公司 | Hydraulic valve with valve core friction force compensation under centrifugal environment |
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| CN107515107A (en) * | 2017-06-30 | 2017-12-26 | 中船动力研究院有限公司 | Air bleeding valve testing stand dynamic power machine formula cylinder pressure analogue means |
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| CN201531385U (en) * | 2009-09-17 | 2010-07-21 | 德帕姆(杭州)泵业科技有限公司 | Measuring pump for sleeve type regulating mechanism |
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| CN111365313A (en) * | 2020-03-16 | 2020-07-03 | 杭州博力液控科技有限公司 | Hydraulic valve with valve core friction force compensation under centrifugal environment |
| CN111365313B (en) * | 2020-03-16 | 2024-04-16 | 杭州博力液控科技有限公司 | Valve core friction force compensation hydraulic valve under centrifugal environment |
| CN111272416A (en) * | 2020-04-08 | 2020-06-12 | 缙云普层泵阀科技有限公司 | Pressure detection equipment for two-position four-way valve |
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