CN110450101A - It is a kind of to lose the installation of the pneumatic valve spring adjusting nut of gas force open type, disassembly, method of adjustment and lose gas force open type pneumatic operated valve application method - Google Patents
It is a kind of to lose the installation of the pneumatic valve spring adjusting nut of gas force open type, disassembly, method of adjustment and lose gas force open type pneumatic operated valve application method Download PDFInfo
- Publication number
- CN110450101A CN110450101A CN201910720586.1A CN201910720586A CN110450101A CN 110450101 A CN110450101 A CN 110450101A CN 201910720586 A CN201910720586 A CN 201910720586A CN 110450101 A CN110450101 A CN 110450101A
- Authority
- CN
- China
- Prior art keywords
- spring
- spring element
- adjusting nut
- telescopic support
- open type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to the dismounting of pneumatic diaphragm valve and regulation technology field, and in particular to a kind of to lose the installation of the pneumatic valve spring adjusting nut of gas force open type, disassembly, method of adjustment and lose gas force open type pneumatic operated valve application method.In actual application, by using the device and technique in the present invention, more changing jobs for actuator spring adjusting nut is completed well, the phenomenon that screw thread and spring adjusting nut for avoiding executing agency's push rod damage and be forced replacement, executes the maintenance task for power plant and the duration is greatly shortened and has saved high part replacement cost.
Description
Technical field
The present invention relates to the dismounting of pneumatic diaphragm valve and adjustment technology field, and in particular to a kind of mistake gas force open type pneumatic operated valve bullet
Installation, disassembly, method of adjustment and the mistake gas force open type pneumatic operated valve application method of spring adjusting nut.
Background technique
Pneumatic control valve has in pressurized-water reactor nuclear power plant in many applications, the especially critical systems such as waste heat guiding system.
The executing agency of pneumatic control valve there are many seed type, wherein the executing agency's type for having a kind of pneumatic operated valve be lose gas force open type every
Membranous type Direct Travel executing agency, the closing forces of valve derive from power plant's compressed air for instrument, and opening force derives from spring.Such is held
The spring element of row mechanism is mounted on the upper end of diaphragm, due to valve body structure design, so that executing agency is defeated when opening
Opening force out is very big, therefore provisioned spring element is relatively large in diameter, and stiffness coefficient is very high.
Authorization Notice No. CN207715813U discloses a kind of Pneumatic diaphragm valve for authorized announcement date on August 10th, 2018 and holds
Row mechanism return assembling device, air bladder valve actuating mechanism return dress when, with thimble bolt pass through fixed plate on screw thread until
The bolt tip of thimble is withstood in the circular groove of upper cover lower platen, tightens thimble bolt, and upper cover lower platen is made to push upper cover to moving down
It moves up to being contacted with lower cover, is finally fixed upper cover and lower cover with lag bolt and the second nut, thus by spring-compressed in upper cover
It is fixed between lower cover, solves the problems, such as that spring rate is high and is difficult to press spring.
It is general to do but when carrying out power output adjusting by spring of the spring adjusting nut to such executing agency
Method is that the collet head matched with the hex surface of spring adjusting nut is mounted on spring adjusting nut, reuses stock torque
Spanner manually tightens nut and then compressed spring, and the time of adjusting is long, more labor intensive.With suffered by spring adjusting nut
Power become larger, spring force is eventually transferred in the screw thread that spring adjusting nut is engaged with actuator shaft, screw thread pair institute
The extruding force and frictional force of receiving are gradually increased with being gradually increased for spring force, and the abrasion of screw thread is also being further exacerbated by,
Wait wear to a certain extent, the thread thickness of stress surface side can gradually be thinned or even can be broken in screw thread, wear the gold of generation
The thread for belonging to clast or fracture can remain in engagement screw thread pair, and as further compression of the spring continues along screw thread pair
It is mobile, and then screw thread pair is caused further to damage, the damage of spring adjusting nut and actuator shaft is resulted even in, even
It scraps.Equally, in disassembly or adjustment spring adjusting nut, metal fragment or the thread of fracture will also result in adjusting nut, valve rod
Damage even scrap.
And the mistake gas force open type pneumatic operated valve of such High power output is all applied to key due to its good performance in nuclear power plant
In key position in system, wherein many be all applied in nuclear island system.By long torque spanner to spring carry out dismounting or
The time for adjusting consuming itself is just very long, in the process of implementation if because the thread of metal fragment or fracture leads to not complete bullet
When the dismounting or adjusting of spring element, service personnel can be made to receive the irradiation dose of longer time, even meeting when damaged condition is serious
The overhaul life for influencing nuclear power station, nuclear power station is made to be affected in dose of radiation and economic aspect.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, the invention proposes a kind of pneumatic valve springs of mistake gas force open type to adjust spiral shell
Female installation method characterized by comprising
Step S1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell；
Step S2, lowering the spring non return part that the fixing end covers makes the tip contact of its bottom Yu the spring element；
Step S3, control telescopic support are stretched out with compression spring element；
Step S4, adjusting the spring non return part downwards makes the tip contact of its bottom Yu the spring element；
Step S5, backspin spring adjusting nut make the tip contact of its bottom Yu the spring element；
Step S6, control telescopic support retract；
Step S7 repeats step S3-S6 until the spring element is compressed distance to a declared goal L.
Further, this method further includes:
The step S2 further includes lowering the stroke measurment part that the fixing end covers to make its bottom and the telescopic support
Top contact；After the step S2, before the step S3, covered according to the distance to a declared goal L in the fixing end
Mark position A2 on stroke measurment part；The step S5 further includes making its bottom and the spring in backspin spring adjusting nut
After the tip contact of element, lowering the stroke measurment part makes to contact at the top of its bottom and the telescopic support；It is described
In step S7, spring element compression distance to a declared goal L is referred to that the label of the position A2 and the fixed end cap are in same
One height.
Preferably, position A2 described in mark position includes: to be on the stroke measurment part with the fixed end cap
Mark position A1 at sustained height position is marked at distance to a declared goal L below the position A1 on the stroke measurment part
Position A2.
The present invention also provides a kind of method for dismounting for losing the pneumatic valve spring adjusting nut of gas force open type, which is characterized in that packet
It includes:
Step M1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell；
Step M2, lowering the spring non return part that the fixing end covers makes the tip contact of its bottom Yu the spring element；
Step M3, control telescopic support are stretched out with compression spring element；
Step M4, is adjusted up the spring non return part, and the upper adjusting height of the spring non return part is less than the telescopic support
Flexible stroke；
The upper rotation height of step M5, upper rotation spring adjusting nut, the spring adjusting nut are more than or equal to the spring non return part
Upper adjusting height；
Step M6, control telescopic support retract so that the top of the spring element and the bottom of the spring adjusting nut connect
Touching；
Step M7 repeats step M3-M6 until the spring element is in free critical state.
Further, the step M2 further includes lowering the stroke measurment part that the fixing end covers to make its bottom and institute
State the top contact of telescopic support；After the step M2, before the step M3, on the stroke measurment part with institute
It states fixed end cap and is in mark position B1 at sustained height position；The step M6 further includes that control telescopic support retraction makes
The spring element top contacted with the bottom of the spring adjusting nut after, raising the stroke measurment part makes its bottom
It is contacted at the top of portion and the telescopic support；In the step M7, after the spring element is in free critical state, in institute
It states and is in mark position B2 at sustained height position with the fixed end cap on stroke measurment part.
The present invention also provides a kind of adjusting methods for losing the pneumatic valve spring adjusting nut of gas force open type characterized by comprising
Step N1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell；
Step N2, lowering the spring non return part that the fixing end covers makes the tip contact of its bottom Yu the spring element；
Step N3, control telescopic support are stretched out with compression spring element；
Step N4, adjusting the spring non return part downwards if the power output that need to increase the spring element makes its bottom and institute
State the tip contact of spring element；The spring non return part is adjusted up if the power output that need to reduce the spring element simultaneously
And the upper adjusting height of the spring non return part is less than the flexible stroke of the telescopic support；
Step N5, if need to increase the power output of the spring element, backspin spring adjusting nut makes its bottom and the bullet
The tip contact of spring element；The upper rotation spring adjusting nut if the power output that need to reduce the spring element, and institute
The upper rotation height for stating spring adjusting nut is more than or equal to the upper adjusting height of the spring non return part；
Step N6, control telescopic support retract so that the top of the spring element and the bottom of the spring adjusting nut connect
Touching；
Step N7 repeats step N3-N6 until the power output of the spring element meets adjusting and requires.
Preferably, diagnosing in the step N7 to pneumatic operated valve, meet adjusting to verify the power output of the spring
It is required that.
The present invention also provides a kind of mistake gas force open type pneumatic operated valve application methods characterized by comprising
Step L1 installs spring adjusting nut using installation method described in any of the above embodiments, so that the spring element of pneumatic operated valve
Compress distance to a declared goal L；
Step L2 adjusts spring adjusting nut using method of adjustment described in any of the above-described, so that the spring element of the pneumatic operated valve
The power output of part meets adjusting and requires；Wherein, the distance to a declared goal L is by the power output for adjusting the specified spring element of requirement
It determines.
Further, after the step L2, further includes: step L3 is torn open using method for dismounting described in any of the above embodiments
Unload the spring adjusting nut.
Preferably, before the step L1 further include: step L0 takes corresponding for the installation environment of pneumatic operated valve
Industry security safeguard procedures, personnel's Radiation Exposure, one in equipment damage safeguard procedures and the anti-foreign matter measure of system
Or it is multinomial.
Beneficial effects of the present invention are as follows:
In actual application, by using the device and technique in the present invention, actuator spring tune is completed well
The phenomenon that section nut more changes jobs, and the screw thread and spring adjusting nut for avoiding executing agency's push rod damage and be forced replacement,
The maintenance task is executed for power plant the duration is greatly shortened and to have saved high part replacement cost.
Detailed description of the invention
Tool construction schematic diagram is adjusted in Fig. 1 embodiment of the present invention.
Specific embodiment
Term used herein is used only for the purpose of describing specific embodiments, and is not intended to limit the present invention.Unless in addition
Definition, otherwise all terms used herein have normally understood identical with those skilled in the art
Meaning.It will be further appreciated that essential term should be interpreted as having and it is in related fields and present disclosure
The consistent meaning of meaning.The disclosure will be considered as example of the invention, and is not intended to and limits the invention to particular implementation
Example.
Embodiment one
The application method for losing gas force open type pneumatic operated valve, suitable for a kind of mistake pneumatic valve spring adjusting nut of gas force open type as shown in Figure 1
Dismount adjusting tool.It includes fixed top cover 11 and telescopic support 21 that the dismounting, which adjusts tool,.Wherein, fixed top cover 11 is mounted on
In the executing agency 31 of pneumatic operated valve and it is equipped with the spring non return part 12 protruded towards the spring element 32 of pneumatic operated valve.Retractable support
Part 21 is supported between the end of spring element 32 and fixed top cover 11 and the telescopic direction and spring element of telescopic support 21
The telescopic direction of part 32 is consistent.
Fixed top cover 11 is the end cap of a shell 1, and the inside of shell 1 is equipped with spring movable chamber 13, spring movable chamber 13
The other end opposite with fixed top cover 11 is equipped with opening, and shell 1 is tipped upside down on outside the spring element 32 of pneumatic operated valve.In shell
1 other end opposite with fixed top cover 11 is equipped with the structure being fixedly connected for the executing agency 31 with pneumatic operated valve, for example, can
In the opening surrounding setting connecting screw hole with fixed 11 opposite other end upper spring movable chamber 13 of top cover of shell 1.When maintenance,
The spring shield cylinder outside spring element 32 will be protected to remove in pneumatic operated valve originally, by shell 1 with the opening court of spring movable chamber 13
Under direction be installed in the executing agency 31 of pneumatic operated valve, and it is using the connection bolt of former spring shield cylinder that the end of shell 11 is tight
Gu in executing agency 31.
The outer wall middle position of 1 upper spring movable chamber 13 of shell is used to install telescopic support 21 there are two being symmetrical arranged
Strip opening 14, the opening 14 of strip are the telescopic support being supported between 32 top of spring element and fixed top cover 11
21 provide flexible activity space.When telescopic support 21 stretches out, between 32 top of spring element and fixed top cover 11 away from
From becoming larger, so that spring element 32 is compressed；When telescopic support 21 retracts, 32 top of spring element and fixed top cover
The distance between 11 become smaller, and are reduced under the restoring force effect of its own by compression degree by compressively spring element 32.
Telescopic support 21 can be symmetrically arranged two jack.Such as it can be realized using two hydraulic jacks
The telescopic support of the present embodiment.Hydraulic jack includes hydraulic cylinder, hydraulic oil pump 22 and is separately connected two hydraulic oil
Two hydraulic oil pipes 23 of cylinder 21 and two hydraulic oil pumps 22.Two hydraulic cylinders are separately mounted to shell as telescopic support 21
In two strips opening 14 of body 1, the hydraulic oil pump 23 outside shell 1 is connected by hydraulic oil pipe 23.Hydraulic jack uses
Thin-type small-size, high-intensitive jack, convenient for it by being put into spring movable chamber in the opened strip opening 14 in 1 two sides of shell
Inside 13, hydraulic oil pump and high-pressure oil pipe can select product suitable on the market according to the power output of spring element.
It is mounted on to 12 adjustable in length of spring non return part on fixed top cover 11 and towards the spring element of pneumatic operated valve 32
Protrusion, for withstanding on the top of the spring element 32 of lower section to keep spring element in the support force revocation of telescopic support 21
The compressive state of part 32.The through-hole passed through for the spring adjusting nut 33 of pneumatic operated valve is additionally provided on fixed top cover 11.
Shell 1 can be the tubular structure made of metal material processing, and spring movable chamber 13 is to be co-axially located at shell
Cylindrical cavity in body 1.The internal diameter of spring movable chamber 13 amplifies 10mm ~ 20mm on the basis of 32 outer diameter of spring element, and spring is living
The outer diameter of dynamic chamber 13 is then converted to the suitable wall thickness of dynamomicrometer calculating according to the compression travel of spring members 32 to design.Solid
Determining design on top cover 11 has 4 the first screw holes of circumference uniform distribution for installing spring non return part 12, and spring non return part 12 is by first
Stock single ended bolt is realized, is made of the good metal material of compressive property, is heat-treated after the completion of machining.First
The diameter of stock single ended bolt can be calculated according to the power output of spring members, be required with proof strength.4 first stocks
Single ended bolt is separately mounted to protrude in 4 the first screw holes and towards internal spring movable chamber 13.
The clear size of opening at fixed 11 center of top cover increases 0.2mm ~ 0.3mm on the basis of the outer diameter of spring adjusting nut 33,
It provides convenient for spring adjusting nut 33 when being rotated on the axis of executing agency 31 and is accurately oriented to.The outer wall design of shell 1 has just
In the handle of installation.
The application method of the mistake gas force open type pneumatic operated valve of the present embodiment, comprising:
L1. the installation method of spring adjusting nut, for spring adjusting nut to be mounted on pneumatic operated valve comprising following step
S1-S7:
Step S1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the end cap of shell.Concrete operations are as follows: after removing the spring shield cylinder for losing gas force open type pneumatic operated valve, by shell 1 with spring activity
The downward opening direction of chamber 13 is installed in the executing agency 31 of pneumatic operated valve, and utilizes the connection bolt of former spring shield cylinder by shell
The end of body 11 is fastened in executing agency 31.Spring non return part 12 is installed to admittedly by the first screw hole on fixed top cover 11
Determine on top cover.Two hydraulic cylinders of telescopic support 21 are respectively installed in two strips opening 14 of 1 two sides of shell,
So that hydraulic cylinder is located in spring movable chamber 13 and can be supported between fixed top cover 11 and the top of spring element 32,
Hydraulic oil pump 22 and hydraulic cylinder are connected by hydraulic oil pipe 23.
Step S2, lowering the spring non return part that fixing end covers makes the tip contact of its bottom and spring element.Specific behaviour
As: the first stock single-head screw is adjusted downwards, it is stretched out towards the spring element in spring movable chamber 13, and final
The tip contact of its bottom and spring element.
Step S3, control telescopic support are stretched out with compression spring element.Concrete operations are as follows: starting hydraulic oil pump is to hydraulic
Jack is suppressed so that hydraulic cylinder stretches out, and the distance between 32 top of spring element and fixed top cover 11 become larger, thus
So that spring element 32 is compressed, compression distance is in the flexible stroke range of hydraulic cylinder.
Step S4, adjusting the spring non return part downwards makes the tip contact of its bottom Yu the spring element.Specific behaviour
As: the first stock single-head screw is adjusted downwards, it is stretched out towards the spring element in spring movable chamber 13, and final
The tip contact of its bottom and spring element.The extension elongation of four first stock single-head screws should be consistent as far as possible, so that
It the top of spring element can be approximate horizontal.
Step S5, backspin spring adjusting nut make the tip contact of its bottom Yu the spring element.Concrete operations are as follows: will
Spring adjusting nut 33, to backspin, makes itself and 4 upper contact of spring top cover along the screw thread of the push rod of executing agency 31.
Step S6, control telescopic support retract.Concrete operations are as follows: hydraulic oil pump 22 stops working, and to hydraulic circuit
Pressure release is carried out, so that hydraulic cylinder retracts.
Step S7 repeats step S3-S6 until the spring element is compressed distance to a declared goal L.Distance to a declared goal L can pass through
Accessed document or drawing confirmation obtain.Preferably, distance to a declared goal L can be defeated according to required pneumatic operated valve spring element by user
Power output is to determine.
After installing spring adjusting nut using method L1, following methods can also be executed as needed, spring is adjusted
Nut is adjusted:
L2. the adjusting method of spring adjusting nut, includes the following steps N1-N7:
Step N1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell.Concrete operations are similar with step S1, briefly for the sake of details are not described herein.
Step N2, lowering the spring non return part that fixing end covers makes the tip contact of its bottom and spring element.Specific behaviour
Make it is similar with step S2, it is brief for the sake of details are not described herein.
Step N3, starting telescopic support are stretched out with compression spring element.Concrete operations are similar with step S3, for the sake of brief
Details are not described herein.
Step N4, downward adjustment spring non return part makes its bottom and spring element if the power output that need to increase spring element
The tip contact of part.Concrete operations are as follows: adjust the first stock single-head screw downwards and make it towards the bullet in spring movable chamber 13
Spring element stretches out, and the tip contact of final its bottom and spring element, accordingly even when the support force of telescopic support cancels,
Spring element can also be withstood by spring non return part and be kept.The extension elongation of four first stock single-head screws should keep one as far as possible
It causes, enables the top of spring element approximate horizontal.Spring is adjusted up if the power output that need to reduce spring element to stop
The upper adjusting height for returning part and spring non return part is less than the flexible stroke of telescopic support.Concrete operations are as follows: be adjusted up first
Stock single-head screw exits it outside towards spring movable chamber 13, and the height of up-regulation is less than the compression travel of hydraulic cylinder.This
Sample will make the first stock single-head screw no longer withstand on the top of spring element, between spring element top and fixed end cap only
It is supported by the hydraulic cylinder of stretching.The extension elongation of four first stock single-head screws should be consistent as far as possible.
Step N5, if need to increase the power output of spring element, backspin spring adjusting nut makes its bottom and spring element
The tip contact of part.Spring adjusting nut 33 is made into itself and spring top to backspin along the screw thread of the push rod of executing agency 31
4 upper contact of lid.To due to the presence of spring adjusting nut, be located at when compression cylinder pressure release retraction, support force revocation
The spring element 32 of its bottom is still able to maintain the compressive state before support force revocation, to realize the tune to spring-compressed distance
It is whole.And in spring adjusting nut backspin, since compression cylinder still keeps stretching and the first stock single-head screw also to withstand on bullet
Spring element crests, when backspin, not will receive the resistance of spring element opposite direction, avoid to spring adjusting nut and executing agency
The damage of screw thread pair.The upper rotation spring adjusting nut if the power output that need to reduce spring element, and spring adjusting nut
Upper rotation height is less than or equal to the upper adjusting height of spring non return part.Concrete operations are as follows: by spring adjusting nut along executing agency
It is revolved on screw thread, the distance of back-out should control within the scope of the compression travel of hydraulic cylinder, and control the upper of spring adjusting nut
Rotation height is more than or equal to the upper adjusting height of spring non return part in step N4.In this way, when compression cylinder pressure release retracts, spring element
Restoring force act directly on the spring non return part below spring adjusting nut, without being caused to spring adjusting nut
Impact, avoids the damage to spring adjusting nut and executing agency's screw thread pair.
Step N6, control telescopic support retract so that the top of spring element is contacted with the bottom of spring adjusting nut.
Concrete operations are as follows: hydraulic oil pump 22 stops working, and carries out pressure release to hydraulic circuit, so that hydraulic cylinder retracts.Compression cylinder
It retracts, so that compression cylinder cancels the support force between fixed end cap and spring element, completes a spring element power output
Up-regulation or downward.
Step N7 repeats step N3-N6 until the power output of spring element meets adjusting and requires.For example, can be using existing
There is the pneumatic operated valve valve diagnostic method in technology, whether the power output for verifying spring element meets the requirements.
Preferably, the mistake gas force open type pneumatic operated valve of the present embodiment is when in use, it further include that bullet is being adjusted using method L2
After spring adjusting nut, following methods are executed as needed, spring adjusting nut are dismantled:
L3. the method for dismounting for losing the pneumatic valve spring adjusting nut of gas force open type, includes the following steps M1-M7:
Step M1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell.Concrete operations are similar with step S1, briefly for the sake of details are not described herein.
Step M2, lowering the spring non return part that the fixing end covers connects its bottom and the top of the spring element
Touching.Concrete operations are similar with step S2, briefly for the sake of details are not described herein.
Step M3, control telescopic support are stretched out with compression spring element.Concrete operations are similar with step S3, for the sake of brief
Details are not described herein.
Step M4, is adjusted up the spring non return part, and the upper adjusting height of the spring non return part is less than the flexible branch
The flexible stroke of support member.Concrete operations are as follows: be adjusted up the first stock single-head screw and it is moved back outside towards spring movable chamber 13
Out, the height of up-regulation is less than the compression travel of hydraulic cylinder.The first stock single-head screw will be made no longer to withstand on spring in this way
The top of element, the only hydraulic cylinder support by stretching out between spring element top and fixed end cap.Four first stock lists
The extension elongation of head screw rod should be consistent as far as possible.
Step M5, upper rotation spring adjusting nut, the upper rotation height of the spring adjusting nut are more than or equal to the spring and stop
Return the upper adjusting height of part.Concrete operations are as follows: revolve spring adjusting nut on the screw thread of executing agency, the distance of back-out should be controlled
System is within the scope of the compression travel of hydraulic cylinder, and the upper rotation height for controlling spring adjusting nut is more than or equal to step M4 and is hit by a bullet
The upper adjusting height of spring non return part.In this way, the restoring force of spring element is acted directly on positioned at bullet when compression cylinder pressure release retracts
On spring non return part below spring adjusting nut, without causing to impact to spring adjusting nut, avoid to spring adjusting nut
And the damage of executing agency's screw thread pair.
Step M6, control telescopic support retract the bottom so that the top of the spring element and the spring adjusting nut
Portion's contact.Concrete operations are as follows: hydraulic oil pump 22 stops working, and carries out pressure release to hydraulic circuit, so that hydraulic cylinder retracts.Pressure
Contracting oil cylinder retracts, so that compression cylinder cancels the support force between fixed end cap and spring element.
Step M7 repeats step M3-M6 until the spring element is in free critical state.Spring element is in freely
After state, there is no bounces to the spring adjusting nut positioned at its top for spring element, can manually continue upper rotation spring
Adjusting nut removes spring adjusting nut completely.
Preferably, can also include: before step L1 in another embodiment
Step L0, for the installation environment of pneumatic operated valve, take corresponding industry security safeguard procedures, personnel's Radiation Exposure,
One or more in equipment damage safeguard procedures and the anti-foreign matter measure of system.
Disintegration, assembling or adjusting by selectively executing the above method, for actuator spring element.It completes
Diaphragm, executing agency's push rod or other component are replaced and are finally completed after executing agency integrally returns dress, can be examined by valve performance
Disconnected equipment measures the power of taking a seat of valve, the stiffness factor of spring, filler frictional force etc..Such as find the compressing force of spring not
It meets the requirements or the stiffness factor of spring does not meet the documentation requirements of producer, the above method can be executed again by selectivity to holding
The spring of row mechanism is adjusted or replaced again, until meeting valve gate technology specifications and factory documentation requirements.
Embodiment two
A kind of application method for losing gas force open type pneumatic operated valve, the dismounting tune of the pneumatic valve spring adjusting nut of the mistake gas force open type being applicable in
It further include the stroke measurment part 15 being arranged on fixed top cover 11 on the basis of the dismounting adjusting tool of section tool in example 1.
It is mounted on to 15 adjustable in length of stroke measurment part on fixed top cover 11 and telescopic support 21 stretches out.On stroke measurment part 15
Settable position mark is with the compression distance of subsidiary spring element 13.
For example, design has 6 threaded holes on the fixation top cover 11 of spring movable chamber 13 in the present embodiment, wherein circumference is equal
4 threaded holes of cloth are the first screw hole for installing spring non return part 12, and in addition 2 threaded holes correspond to the length of shell 1
It is arranged at the position of strip gab 14, for the second screw hole for installing stroke measurment part 15.Stroke measurment part 15 equally can be with
It is realized by the second stock single ended bolt.
The application method of mistake gas force open type pneumatic operated valve based on the present embodiment, the in example 1 application method of pneumatic operated valve
On the basis of increase following the description:
In the installation method of the L1. spring adjusting nut of the present embodiment:
Step S2 further includes lowering the stroke measurment part that fixing end covers to make to contact at the top of its bottom and telescopic support.Tool
Gymnastics as: downwards adjust the second stock single-head screw make its towards in spring movable chamber 13 hydraulic cylinder stretch out, and
The tip contact of final its bottom and hydraulic cylinder.The extension elongation of two second stock single-head screws should be consistent as far as possible.
Upon step s 2, before step S3, according to distance to a declared goal L on the stroke measurment part that fixing end covers marker bit
Set A2.Concrete operations are as follows: be in mark position A1 at sustained height position with fixed end cap on stroke measuring piece, surveyed in stroke
It measures and is in below the A1 of position mark position A2 at distance to a declared goal L on part.
Step S5 further includes, and after backspin spring adjusting nut makes the tip contact of its bottom and spring element, lowers
Stroke measurment part makes to contact at the top of its bottom and telescopic support.Concrete operations include: the second stock single head spiral shell of downward adjusting
Bar stretches out it towards the hydraulic cylinder in spring movable chamber 13, and the tip contact of final its bottom and hydraulic cylinder.
In step S7, spring element compression distance to a declared goal L is referred to that the label of position A2 and fixed end cap are in same height
Degree.
The L3. of the present embodiment loses in the method for dismounting of the pneumatic valve spring adjusting nut of gas force open type:
Step M2 further includes lowering the stroke measurment part that fixing end covers to make to contact at the top of its bottom and telescopic support.Tool
Gymnastics as: downwards adjust the second stock single-head screw make its towards in spring movable chamber 13 hydraulic cylinder stretch out, and
The tip contact of final its bottom and hydraulic cylinder.
After step M2, before step M3, it is at sustained height position and marks with fixed end cap on stroke measuring piece
Remember position B1.
Step M6 further includes retracting in control telescopic support so that the top of spring element and the bottom of spring adjusting nut
After portion's contact, up-regulation stroke measurment part makes to contact at the top of its bottom and telescopic support.After telescopic support retracts, branch
The support force supportted between spring element top and fixed end cap cancels, the lower rebound upwards of the restoring force effect of spring element to bullet
Spring non return part position, the hydraulic cylinder positioned at spring element top are moved up as the end of spring element synchronizes.To up-regulation
Saving the second stock single-head screw exits it outside towards spring movable chamber 13, and the top of final its bottom and hydraulic cylinder
Contact.
In step M7, after spring element is in free critical state, it is in same with fixed end cap on stroke measuring piece
Mark position B2 at height and position.Before the distance between position B1 and position B2 spring adjusting nut are disassembled, spring element quilt
The distance of compression.The distance between position B1 and position B2 are measured and recorded in the present embodiment, can be used for subsequent spring element
The installation or adjusting of part.
Disintegration, assembling or adjusting by selectively executing the above method, for actuator spring element.It completes
Diaphragm, executing agency's push rod or other component are replaced and are finally completed after executing agency integrally returns dress, can be examined by valve performance
Disconnected equipment measures the power of taking a seat of valve, the stiffness factor of spring, filler frictional force etc..Such as find the compressing force of spring not
It meets the requirements or the stiffness factor of spring does not meet the documentation requirements of producer, the above method can be executed again by selectivity to holding
The spring of row mechanism is adjusted or replaced again, until meeting valve gate technology specifications and factory documentation requirements.
Although describing embodiments of the present invention, those of ordinary skill in the art can be in appended claims
Various deformations or amendments are made in range.
Claims (10)
1. a kind of installation method for losing the pneumatic valve spring adjusting nut of gas force open type characterized by comprising
Step S1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell；
Step S2, lowering the spring non return part that the fixing end covers makes the tip contact of its bottom Yu the spring element；
Step S3, control telescopic support are stretched out with compression spring element；
Step S4, adjusting the spring non return part downwards makes the tip contact of its bottom Yu the spring element；
Step S5, backspin spring adjusting nut make the tip contact of its bottom Yu the spring element；
Step S6, control telescopic support retract；
Step S7 repeats step S3-S6 until the spring element is compressed distance to a declared goal L.
2. a kind of installation method for losing the pneumatic valve spring adjusting nut of gas force open type according to claim 1, which is characterized in that
Further include:
The step S2 further includes lowering the stroke measurment part that the fixing end covers to make its bottom and the telescopic support
Top contact；
After the step S2, before the step S3, surveyed according to the distance to a declared goal L in the stroke that the fixing end covers
Measure mark position A2 on part；
The step S5 further includes, after the tip contact that backspin spring adjusting nut makes its bottom and the spring element,
Lowering the stroke measurment part makes to contact at the top of its bottom and the telescopic support；
In the step S7, by the spring element compression distance to a declared goal L refer to the position A2 label and the fixing end
Lid is in sustained height.
3. a kind of installation method for losing the pneumatic valve spring adjusting nut of gas force open type according to claim 2, which is characterized in that
The position A2 is marked to include:
It is in mark position A1 at sustained height position with the fixed end cap on the stroke measurment part, is surveyed in the stroke
It measures and is in below the position A1 mark position A2 at distance to a declared goal L on part.
4. a kind of method for dismounting for losing the pneumatic valve spring adjusting nut of gas force open type characterized by comprising
Step M1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell；
Step M2, lowering the spring non return part that the fixing end covers makes the tip contact of its bottom Yu the spring element；
Step M3, control telescopic support are stretched out with compression spring element；
Step M4, is adjusted up the spring non return part, and the upper adjusting height of the spring non return part is less than the telescopic support
Flexible stroke；
The upper rotation height of step M5, upper rotation spring adjusting nut, the spring adjusting nut are more than or equal to the spring non return part
Upper adjusting height；
Step M6, control telescopic support retract so that the top of the spring element and the bottom of the spring adjusting nut connect
Touching；
Step M7 repeats step M3-M6 until the spring element is in free critical state.
5. a kind of method for dismounting for losing the pneumatic valve spring adjusting nut of gas force open type according to claim 4, it is characterised in that:
The step M2 further includes lowering the stroke measurment part that the fixing end covers to make its bottom and the telescopic support
Top contact；
After the step M2, before the step M3, it is in same with the fixed end cap on the stroke measurment part
Mark position B1 at height and position；
The step M6 further includes that control telescopic support retracts so that the top of the spring element and the spring adjust spiral shell
After female bottom contact, raising the stroke measurment part makes to contact at the top of its bottom and the telescopic support；
In the step M7, after the spring element is in free critical state, on the stroke measurment part with the fixation
End cap is in mark position B2 at sustained height position.
6. a kind of adjusting method for losing the pneumatic valve spring adjusting nut of gas force open type characterized by comprising
Step N1 installs shell outside the spring element of pneumatic operated valve, by telescopic support be supported on spring non return part top and
Between the fixation end cap of shell；
Step N2, lowering the spring non return part that the fixing end covers makes the tip contact of its bottom Yu the spring element；
Step N3, control telescopic support are stretched out with compression spring element；
Step N4, adjusting the spring non return part downwards if the power output that need to increase the spring element makes its bottom and institute
State the tip contact of spring element；The spring non return part is adjusted up if the power output that need to reduce the spring element simultaneously
And the upper adjusting height of the spring non return part is less than the flexible stroke of the telescopic support；
Step N5, if need to increase the power output of the spring element, backspin spring adjusting nut makes its bottom and the bullet
The tip contact of spring element；The upper rotation spring adjusting nut if the power output that need to reduce the spring element, and institute
The upper rotation height for stating spring adjusting nut is more than or equal to the upper adjusting height of the spring non return part；
Step N6, control telescopic support retract so that the top of the spring element and the bottom of the spring adjusting nut connect
Touching；
Step N7 repeats step N3-N6 until the power output of the spring element meets adjusting and requires.
7. a kind of adjusting method for losing the pneumatic valve spring adjusting nut of gas force open type according to claim 6, it is characterised in that:
In the step N7, pneumatic operated valve is diagnosed, meets adjusting requirement to verify the power output of the spring element.
8. a kind of mistake gas force open type pneumatic operated valve application method characterized by comprising
Step L1 installs spring adjusting nut using installation method of any of claims 1-3, so that pneumatic operated valve
Spring element compresses distance to a declared goal L；
Step L2 adjusts spring adjusting nut using method of adjustment described in any one of claim 6-7, so that described pneumatic
The power output of the spring element of valve meets adjusting and requires；
Wherein, the distance to a declared goal L requires the power output of specified spring element to determine by described adjust.
9. a kind of mistake gas force open type pneumatic operated valve application method according to claim 8, which is characterized in that the step L2 it
Afterwards, further includes:
Step L3 dismantles the spring adjusting nut using method for dismounting described in any one of claim 4-5.
10. a kind of mistake gas force open type pneumatic operated valve application method according to claim 8-9, which is characterized in that in the step
Before L1 further include:
Step L0, for the installation environment of pneumatic operated valve, take corresponding industry security safeguard procedures, personnel's Radiation Exposure,
One or more in equipment damage safeguard procedures and the anti-foreign matter measure of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720586.1A CN110450101B (en) | 2019-08-06 | 2019-08-06 | Use method of air-loss open type pneumatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720586.1A CN110450101B (en) | 2019-08-06 | 2019-08-06 | Use method of air-loss open type pneumatic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110450101A true CN110450101A (en) | 2019-11-15 |
| CN110450101B CN110450101B (en) | 2021-04-02 |
Family
ID=68485021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910720586.1A Active CN110450101B (en) | 2019-08-06 | 2019-08-06 | Use method of air-loss open type pneumatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110450101B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6957477B1 (en) * | 2003-08-19 | 2005-10-25 | Mark Neiman | Tool for installing nozzles in pop-up sprinkler heads |
| CN2897573Y (en) * | 2006-04-11 | 2007-05-09 | 傅勇刚 | Spring disassembling device |
| US20090179168A1 (en) * | 2008-01-15 | 2009-07-16 | Steven Paul Sinka | Methods and apparatus for adjusting a spring load in an actuator |
| CN202097717U (en) * | 2011-05-26 | 2012-01-04 | 山推工程机械股份有限公司 | Press mounting device for large springs of bulldozers |
| CN102747543A (en) * | 2012-06-20 | 2012-10-24 | 吴江市隆泰喷织厂 | Thread tensioning device with scale for sewing machine |
| US20130146823A1 (en) * | 2011-12-13 | 2013-06-13 | Force Protection Industries, Inc. | Compression kit for independent suspension system |
| CN104227656A (en) * | 2014-09-28 | 2014-12-24 | 陕西高新实业有限公司 | Mounting method for GEAREX series toothed taper sleeve coupling |
| CN104511742A (en) * | 2013-09-29 | 2015-04-15 | 王荣 | Large-sized pressure spring loading and unloading machine |
| CN206200886U (en) * | 2016-11-24 | 2017-05-31 | 苏州维赛克阀门检测技术有限公司 | A kind of safety valve dismantling device |
| CN207256154U (en) * | 2017-04-24 | 2018-04-20 | 马钢(集团)控股有限公司 | A kind of hydraulic crawler excavator buffer spring assembles equipment |
-
2019
- 2019-08-06 CN CN201910720586.1A patent/CN110450101B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6957477B1 (en) * | 2003-08-19 | 2005-10-25 | Mark Neiman | Tool for installing nozzles in pop-up sprinkler heads |
| CN2897573Y (en) * | 2006-04-11 | 2007-05-09 | 傅勇刚 | Spring disassembling device |
| US20090179168A1 (en) * | 2008-01-15 | 2009-07-16 | Steven Paul Sinka | Methods and apparatus for adjusting a spring load in an actuator |
| CN202097717U (en) * | 2011-05-26 | 2012-01-04 | 山推工程机械股份有限公司 | Press mounting device for large springs of bulldozers |
| US20130146823A1 (en) * | 2011-12-13 | 2013-06-13 | Force Protection Industries, Inc. | Compression kit for independent suspension system |
| CN102747543A (en) * | 2012-06-20 | 2012-10-24 | 吴江市隆泰喷织厂 | Thread tensioning device with scale for sewing machine |
| CN104511742A (en) * | 2013-09-29 | 2015-04-15 | 王荣 | Large-sized pressure spring loading and unloading machine |
| CN104227656A (en) * | 2014-09-28 | 2014-12-24 | 陕西高新实业有限公司 | Mounting method for GEAREX series toothed taper sleeve coupling |
| CN206200886U (en) * | 2016-11-24 | 2017-05-31 | 苏州维赛克阀门检测技术有限公司 | A kind of safety valve dismantling device |
| CN207256154U (en) * | 2017-04-24 | 2018-04-20 | 马钢(集团)控股有限公司 | A kind of hydraulic crawler excavator buffer spring assembles equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110450101B (en) | 2021-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107328864B (en) | Detection method of combined ultrasonic probe capable of adjusting coupling force | |
| US20190374995A1 (en) | Can Bottom Former Assembly | |
| CN105486603B (en) | A kind of impact/tangential compound motion abrasion test device a little | |
| CN105458340B (en) | A kind of localization punch for being used to measure non-magnetic metal plate residual stress | |
| CN208788375U (en) | A kind of novel support sired results dress | |
| CN103195957B (en) | Spring safety valve with online monitoring and inspection functions | |
| CN106153458A (en) | A kind of tension and compression type residual stress demarcation device | |
| CN110450101A (en) | It is a kind of to lose the installation of the pneumatic valve spring adjusting nut of gas force open type, disassembly, method of adjustment and lose gas force open type pneumatic operated valve application method | |
| CN113740020A (en) | Test system and test device for testing mechanical performance of vehicle parts | |
| CN102661904B (en) | Calibrator for rebound value of resiliometer and testing method for rebound value of resiliometer | |
| CN210403224U (en) | Disassembling and adjusting tool for spring adjusting nut of air-out open type pneumatic valve | |
| CN108899100A (en) | A kind of ball bed high-temperature stack sets maintenance sealing structure | |
| CN114894621B (en) | Anchor rod pulling force test method based on CT scanning | |
| CN206146632U (en) | Oil filling opening of automobile refuels at station nozzle tube spring fatigue test device for control system | |
| CN115541857A (en) | Integrated cement-based material self-repairing performance detection device | |
| CN209035902U (en) | Diesel valve rocker arm bush dismantling device | |
| CN109079463A (en) | Diesel valve rocker arm bush dismantling device and method | |
| CN106679914A (en) | Bending deflection test device for high temperature vacuum environment | |
| CN210802317U (en) | Device for calibrating extension length of stretching bolt | |
| CN212779826U (en) | Measuring device for overall rigidity value of universal disc spring assembly | |
| CN109253129A (en) | The test macro and method of radial forging machine main hydraulic cylinder | |
| CN221124120U (en) | Hydraulic stretcher with travel indicating device | |
| CN221302753U (en) | Compression jig for testing compression set experiment of sealing ring | |
| CN114323615B (en) | Test fixture for service life identification of bellows of safety valve of spring type voltage stabilizer | |
| CN209478093U (en) | One kind being used for plunger assembly prosthetic device again |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |