CN204140901U - The hard sealing rotary plug valve of a kind of Quick lift-type - Google Patents

The hard sealing rotary plug valve of a kind of Quick lift-type Download PDF

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Publication number
CN204140901U
CN204140901U CN201420578620.9U CN201420578620U CN204140901U CN 204140901 U CN204140901 U CN 204140901U CN 201420578620 U CN201420578620 U CN 201420578620U CN 204140901 U CN204140901 U CN 204140901U
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CN
China
Prior art keywords
valve
hard sealing
rotary plug
type
sealing rotary
Prior art date
Application number
CN201420578620.9U
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Chinese (zh)
Inventor
李永喜
黄美林
黄爱义
苏荆攀
金虎
项光武
南飞
王忠渊
陈乐克
王忠淼
Original Assignee
浙江石化阀门有限公司
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Priority to CN201420578620.9U priority Critical patent/CN204140901U/en
Application granted granted Critical
Publication of CN204140901U publication Critical patent/CN204140901U/en

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Abstract

The hard sealing rotary plug valve of a kind of Quick lift-type.Mainly solve present lifting type hard sealing rotary plug valve cock open and close speed comparatively slow, cannot the problem of quick closedown.It is characterized in that: described driving mechanism comprises pitch wheel cover (51) and tooth bar (52), described power source (5) band carry-over bar (52) does straight reciprocating motion, described geared sleeve (51) lower end is connected with valve rod (3) and links with valve rod (3), also comprise scaffold (53), described geared sleeve (51) is located in scaffold (53), is also provided with tapered roller bearing (54) between described scaffold (53) inwall and geared sleeve (51).The utility model provides a kind of Quick lift-type hard sealing rotary plug valve, driving mechanism is driven by power source, its driving mechanism comprises the geared sleeve and tooth bar that cooperatively interact, tapered roller bearing is provided with between geared sleeve and scaffold, the hard sealing rotary plug valve of this lifting type opens and closes rapidly, within can reaching 0.28 second, and be provided with resilient snubber.

Description

The hard sealing rotary plug valve of a kind of Quick lift-type
Technical field
The utility model belongs to stopcock field, particularly the hard sealing rotary plug valve of a kind of Quick lift-type.
Background technique
The hard sealing rotary plug valve of lifting type is the rotary valve of closure member or plunger shape, by 90-degree rotation, the passway on valve plug is communicated with the passway on valve body or separates, and realizes a kind of valve opened or close.The hard sealing rotary plug valve of present lifting type is comparatively slow in opening and closing hourly velocity, cannot meet the requirement of quick closedown.
Model utility content
In order to overcome the deficiency of background technique, the utility model provides a kind of Quick lift-type hard sealing rotary plug valve, mainly solves present lifting type hard sealing rotary plug valve cock open and close speed comparatively slow, cannot the problem of quick closedown.
The technological scheme that the utility model adopts is:
The hard sealing rotary plug valve of a kind of Quick lift-type, comprise valve body, support, valve rod, power source and the driving mechanism driven by power source, described valve rod is provided with track pin, bearing is arranged with outside described track pin, described to be set up on valve body and to be provided with the rail slot be slidably matched with described bearing, it is characterized in that: described driving mechanism comprises pitch wheel cover and tooth bar, described power source band carry-over bar does straight reciprocating motion, described geared sleeve lower end is connected with valve rod and links with valve rod, also comprise scaffold, described geared sleeve is located in scaffold, also tapered roller bearing is provided with between described scaffold inwall and geared sleeve.
Correspondingly with track pin on described support be provided with groove, be provided with snubber elastomeric part bottom described groove, described track pin comprises when the primary importance that is separated with snubber elastomeric part when stopcock is opened completely and stopcock are closed completely and the second place of snubber elastomeric part top press fit.
Also comprise bearing support, described bearing support is provided with strut, described strut end is provided with deep groove ball bearing, and described deep groove ball bearing rolls with tooth bar back and coordinates.
Also be provided with Stem Mut between described valve rod and geared sleeve, described Stem Mut is connected by six short tooth trapezoidal threads with valve rod.
Described bearing is needle bearing.
Described snubber elastomeric part is that rubber is made.
Described rail slot inner wall overlaying has wear-resistant alloy layer.
Described wear-resistant alloy layer is Si Taili cemented carbide.
Described power source is oil hydraulic cylinder.
The beneficial effects of the utility model are: the utility model provides a kind of Quick lift-type hard sealing rotary plug valve, driving mechanism is driven by power source, its driving mechanism comprises the geared sleeve and tooth bar, Stem Mut and valve rod that cooperatively interact, tapered roller bearing is provided with between geared sleeve and scaffold, the hard sealing rotary plug valve of this lifting type opens and closes rapidly, within can reaching 0.28 second.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment.
Fig. 2 is the sectional view of the utility model embodiment.
Fig. 3 is Figure 1A place enlarged view of the utility model embodiment.
Fig. 4 is Figure 1B place enlarged view of the utility model embodiment.
Fig. 5 is the plan view of Fig. 1 of the utility model embodiment.
Fig. 6 is the schematic diagram of the bearing support of the utility model embodiment.
Fig. 7 is the schematic diagram of the strut of the utility model embodiment.
In figure, valve body 1, support 2, valve rod 3, track pin 31, rail slot 21, snubber elastomeric part 4, power source 5, geared sleeve 51, tooth bar 52, scaffold 53, supporting frame 55, cock 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in Fig. 1 composition graphs 2 to Fig. 7, the hard sealing rotary plug valve of a kind of Quick lift-type, comprise valve body 1, support 2, valve rod 3, power source 5 and the driving mechanism driven by power source 5, described valve rod 3 is provided with track pin 31, described support 2 to be located on valve body 1 and to be provided with the rail slot 21 with track pin 31 two ends needle bearing adaptation, described driving mechanism comprises pitch wheel cover 51 and tooth bar 52, Stem Mut 32 and valve rod 3, described power source 5 is with carry-over bar 52 to do straight reciprocating motion, tooth bar 52 driven gear cover 51 rotates, Stem Mut 32 is with ovable valve stem 3 to be elevated and rotary motion, also comprise scaffold 53, described geared sleeve 51 is located in scaffold 53, tapered roller bearing 54 is also provided with between described scaffold 53 inwall and geared sleeve 51.Described geared sleeve 51 lower end Stem Mut 32 is connected with valve rod 3 and is with ovable valve stem 3 to move up and down and rotary motion, by power source band carry-over bar thus driven gear cover rotate, also be provided with tapered roller bearing 54 stable performance between geared sleeve and scaffold, open and close rapidly.The utility model provides a kind of Quick lift-type hard sealing rotary plug valve, its driving mechanism comprises the geared sleeve and tooth bar that cooperatively interact, be provided with tapered roller bearing between geared sleeve and scaffold, the hard sealing rotary plug valve of this lifting type opens and closes rapidly, within can reaching 0.28 second.As preferably, the valve latus rectum of the present embodiment is 300 ㎜, during valve opening, first drives cock 7 vertically rising 20 ㎜ by valve rod 3, the male cone (strobilus masculinus) of cock 7 is allowed to be separated with the internal taper hole of valve body 1 (reducing friction), then valve rod 3 drives cock 7 90-degree rotation again, because the rail slot 21 of support 2 is spiral, so while rotation, cock to be risen 25 ㎜ along valve rod axis again, after cock 90-degree rotation puts in place, also to rise 5 ㎜ with valve rod, valve rod track is correctly located in bracket track groove.As can be seen here, the crow flight distance that when this stopcock is opened, valve rod and cock are risen is 50 ㎜. within 0.28 second, complete above-mentioned action in order to making valve, detail design and being calculated as follows: 1, internal diameter Φ 200 ㎜ of power source (driving oil cylinder), oil pressure 22MPa, the thrust produced is 690KN, and this power can meet power required when cock is opened.The modulus of rack and pinion is 3.The number of teeth of gear is 17, and gear rotates 1 circle, and the stroke of tooth bar is 53.38 ㎜.Gear revolves and turns around, and Stem Mut rotates 1 circle simultaneously, and Stem Mut can be with ovable valve stem elevating movement, and because valve rod adopts German short tooth trapezoidal thread standard DIN380, alveolus is shallow, and root of the tooth intensity is high, transmits axial force large, so select the screw thread of this standard.Threaded stem is designed to DTr60 × 54 (P9), i.e. major diameter of thread 60 ㎜, pitch 9 ㎜, helical pitch 54 ㎜, i.e. 6 short tooth trapezoidal threads, Stem Mut turns 1 circle, the axial stroke of valve rod is 1 helical pitch (54 ㎜), during this valve opening, valve rod axial stroke is 50 ㎜, as long as so gear or Stem Mut in 0.28 second, rotate 1 circle just passable.How guarantee gear rotated 1 circle in 0.28 second, just required tooth bar, i.e. oil cylinder inner carrier mobile 53.38 ㎜ in 0.28 second.From calculating, the oil inlet quantity of oil cylinder was 1.68 liters in 0.28 second, and the solenoid valve of oil inlet pipe is selected to be that rated flow is greater than 360 liters/min.The rated flow of the maximum high-voltage pilot-controlled electroma netic valve that existing market provides is 100 liters/min, so will install 4 solenoid valves on oil cylinder, namely entrance point and outlet end all need to install ZG1/2 high-pressure pipe connector 4.
In the utility model, as shown in the figure, correspondingly with track pin 31 on described support 2 be provided with groove 22, be provided with snubber elastomeric part 4 bottom described groove 22, described track pin 31 comprises when the primary importance that is separated with snubber elastomeric part 4 when stopcock is opened completely and stopcock are closed completely and snubber elastomeric part 4 pushes up the second place of press fit.Groove comprises straight trough and spiral chute, during work, cock promotes along with the lifting of valve rod and rotation to rotate or rotate and declines, when valve rod declines, namely stopcock cuts out, when track pin is in the second place, due to resilient snubber to be located at bottom groove and with the track pin two ends needle bearing top press fit on valve rod, greatly cushion the impact of valve rod to valve body, protect valve, extend working life, the utility model provides a kind of Quick lift-type hard sealing rotary plug valve, resilient snubber is provided with in the groove that its support is corresponding with track pin, can be operationally, play buffer function, thus protect valve body, Safety performance is good.
In the utility model, as shown in the figure, described snubber elastomeric part 4 is made for rubber.Also other elastomeric cushion materials can be adopted herein, such as TPE, TPR etc.
In the utility model, as shown in the figure, described rail slot 21 inner wall overlaying has wear-resistant alloy layer.Wear-resisting property is good, adds working life, also can adopt ferrous alloy here; Nickel-base alloy (Ni-Cr alloy, Ni-Cr-Mo alloy etc.).
In the utility model, as shown in the figure, described wear-resistant alloy layer is Si Taili cemented carbide.Stellite (stellite alloys) has high dimensional stability, and very high wear-resisting, anti-corrosion, oxidation resistance, using effect is good.
In the utility model, as shown in the figure, the driving mechanism also comprising power source 5 and driven by power source 5, described driving mechanism comprises pitch wheel cover 51 and tooth bar 52, described power source 5 is with carry-over bar 52 to do straight reciprocating motion, tooth bar 52 driven gear cover 51 rotates, and Stem Mut 32 is with ovable valve stem 3 to be elevated and rotary motion, and the movement locus of valve rod is limited by the rail slot 21 on support.During use, by power source band carry-over bar thus driven gear cover, because geared sleeve and valve rod interlock, so power source can be with ovable valve stem to be elevated add rotation.This power mechanism structure is simple, easy to use.Needle bearing 33 can make track pin 31 and rail slot 21 contact friction force reduce, and makes valve opening and closing more laborsaving.
In the utility model, as shown in the figure, described power source 5 is oil hydraulic cylinder.Oil hydraulic cylinder has the features such as structure is simple, High power output, stable and reliable for performance, working service is convenient.
In the utility model, as shown in the figure, be also provided with Stem Mut 32 between described valve rod 3 and geared sleeve 51, described Stem Mut 32 is connected by six short tooth trapezoidal threads with valve rod 3.Short tooth trapezoidal thread alveolus is shallow, and root of the tooth intensity is high, and carry-over moment is large, and 6 head threads can make transport velocity improve 6 times.Stem Mut and geared sleeve are threaded connection, screw check, also comprise bearing support 6, and described bearing support 6 is provided with strut 61, and described strut 61 end is provided with deep groove ball bearing 62, and described deep groove ball bearing 62 contacts with tooth bar 52 dorsal glide.Here Stem Mut is six short tooth trapezoidal threads (DIN380), and alveolus is shallow, and intensity is large, is convenient to assembling, uses the stopcock of this structure, and its open and close time is less than and equals 0.28 second, and open and close rapidly, using effect is good.
In the utility model, as shown in the figure, also comprise bearing support 6, described bearing support 6 is provided with strut 61, described strut 61 end is provided with deep groove ball bearing 62, and described deep groove ball bearing 62 rolls with tooth bar 52 back and coordinates.Using effect is better, long service life.
In the utility model, as shown in the figure, described bearing 33 is needle bearing.Needle bearing has less cross section and has higher load-taking capacity, and has minimum coefficient of rolling friction, and using effect is better, reduces and opens and closes moment, longer service life.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection domain of the present utility model.

Claims (9)

1. the hard sealing rotary plug valve of Quick lift-type, comprise valve body (1), support (2), valve rod (3), power source (5) and the driving mechanism driven by power source (5), described valve rod (3) is provided with track pin (31), described track pin (31) outside is arranged with bearing (33), described support (2) is located at valve body (1) and is gone up and be provided with the rail slot (21) be slidably matched with described bearing (33), it is characterized in that: described driving mechanism comprises pitch wheel cover (51) and tooth bar (52), described power source (5) band carry-over bar (52) does straight reciprocating motion, described geared sleeve (51) lower end is connected with valve rod (3) and links with valve rod (3), also comprise scaffold (53), described geared sleeve (51) is located in scaffold (53), tapered roller bearing (54) is also provided with between described scaffold (53) inwall and geared sleeve (51).
2. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 1, it is characterized in that: described support (2) is above corresponding with track pin (31) is provided with groove (22), described groove (22) bottom is provided with snubber elastomeric part (4), and described track pin (31) comprises when the primary importance that is separated with snubber elastomeric part (4) when stopcock is opened completely and stopcock are closed completely and snubber elastomeric part (4) pushes up the second place of press fit.
3. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 1, it is characterized in that: also comprise bearing support (6), described bearing support (6) is provided with strut (61), described strut (61) end is provided with deep groove ball bearing (62), and described deep groove ball bearing (62) rolls with tooth bar (52) back and coordinates.
4. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 1, it is characterized in that: be also provided with Stem Mut (32) between described valve rod (3) and geared sleeve (51), described Stem Mut (32) is connected by six short tooth trapezoidal threads with valve rod (3).
5. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 1, is characterized in that: described bearing (33) is needle bearing.
6. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 2, is characterized in that: described snubber elastomeric part (4) is made for rubber.
7. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 1, is characterized in that: described rail slot (21) inner wall overlaying has wear-resistant alloy layer.
8. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 7, is characterized in that: described wear-resistant alloy layer is Si Taili cemented carbide.
9. the hard sealing rotary plug valve of a kind of Quick lift-type according to claim 1, is characterized in that: described power source (5) is oil hydraulic cylinder.
CN201420578620.9U 2014-10-09 2014-10-09 The hard sealing rotary plug valve of a kind of Quick lift-type CN204140901U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420578620.9U CN204140901U (en) 2014-10-09 2014-10-09 The hard sealing rotary plug valve of a kind of Quick lift-type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420578620.9U CN204140901U (en) 2014-10-09 2014-10-09 The hard sealing rotary plug valve of a kind of Quick lift-type

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315162A (en) * 2014-10-09 2015-01-28 浙江石化阀门有限公司 Fast lifting type hard sealing plug valve
CN107448670A (en) * 2017-09-20 2017-12-08 武汉阀门水处理机械股份有限公司 A kind of tapered plug valve
CN110107709A (en) * 2019-06-01 2019-08-09 宁波文泽机电技术开发有限公司 Plug valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315162A (en) * 2014-10-09 2015-01-28 浙江石化阀门有限公司 Fast lifting type hard sealing plug valve
CN104315162B (en) * 2014-10-09 2016-11-02 浙江石化阀门有限公司 A kind of fast lifting formula hard sealing rotary plug valve
CN107448670A (en) * 2017-09-20 2017-12-08 武汉阀门水处理机械股份有限公司 A kind of tapered plug valve
CN107448670B (en) * 2017-09-20 2019-05-10 武汉阀门水处理机械股份有限公司 A kind of tapered plug valve
CN110107709A (en) * 2019-06-01 2019-08-09 宁波文泽机电技术开发有限公司 Plug valve

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GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20150204

Effective date of abandoning: 20161102

C25 Abandonment of patent right or utility model to avoid double patenting