CN103851256B - A kind of ram bolt and filler compacting structure - Google Patents
A kind of ram bolt and filler compacting structure Download PDFInfo
- Publication number
- CN103851256B CN103851256B CN201410112487.2A CN201410112487A CN103851256B CN 103851256 B CN103851256 B CN 103851256B CN 201410112487 A CN201410112487 A CN 201410112487A CN 103851256 B CN103851256 B CN 103851256B
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- China
- Prior art keywords
- valve
- gland
- bolt
- upper cover
- valve body
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- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Details Of Valves (AREA)
Abstract
What the present invention relates to is a kind of ram bolt and filler compacting structure.By valve upper cover, valve body support, filler, Gland, the valve body of valve screw and handle composition, also comprise ram bolt, Gland is real to be undertaken compressing by such structure: be circumferentially provided with at least two draw-in grooves away from Gland one end face of valve upper cover, and on described valve body support, a flat board is extended respectively to both sides, flat board is provided with the bolt hole coaxially arranged with draw-in groove, ram bolt square toes are stuck in the draw-in groove of the Gland matched with it, and the thread section of ram bolt is through bolt hole, and thread section between Gland and valve body support is provided with the locking nut and pad that are compressed by Gland.The impacting force of valve packing is produced by the thrust of ram bolt, but also on Gland with some the sluicing grooves of symmetric design on valve upper cover, at utmost Protective valve door part particularly gland stud from the infringement of leaking medium.
Description
Technical field
The present invention relates to a kind of filler compacting structure of valve, be specially a kind of ram bolt formula filler compacting device.
Background technique
As shown in accompanying drawing 1, Fig. 2, use the valve of packing filling at present, its filler 7 is all pulling force that the bolt 21 by screwing two or other symmetrical quantity produces, and this pulling force acts on Gland 3 and the packing in stuffing box is compressed.This structure is widely used in the valve of various dependence packing_seal.The gap formed between valve screw and Gland 3 and the gap formed between Gland and valve rack are two positions that soft packing seal valve the most easily leaks.So this two places HF leakage point adjacent gland bolt 21 again, the corrosive flowing medium that has leaked out does not have Rational Path to discharge, be very easily infected with gland bolt 21 particularly close valve sealability comprise all positions that nut and bolt screw position.As long as leakage once in a while is just enough to make the corrosion of whole valve bolts and nuts with the Korrosionsmedium seldom measured.Because corrosion is just difficult to again by fastening nut, the method increasing the degree of compaction of packing keeps out the minute leakage already occurred.Final final result because of the inefficacy of the widgets such as valve bolts and nuts, whole valve is scrapped, and again must replace a new valve could meet production requirement.But so not only cause valve spare part expense to increase, the cut-out medium, stop work and production etc. of returning as valve is replaced smoothly and prepare brings a heavy difficult problem.
Summary of the invention
By conversion thinking, the invention provides a kind of ram bolt formula valve filler compression structure, after screwing the nut in ram bolt, ram bolt is just subject to downward thrust just can compress filler in valve stuffing box, realize the object of valve seal, and improve the convenience of later maintenance, improve service life.
The present invention is achieved by the following technical solutions:
A kind of ram bolt, comprise bolt body, described bolt body has thread section, it is characterized in that, square toes are provided with in the one end away from thread section, be provided with the thrust disc that a cross-sectional area is greater than square toes cross-sectional area inside described square toes, and bolt body between described thrust disc and thread section be also provided with the dash edge that a section is greater than bolt body section.
The external frame on described thrust disc, dash edge be circular or square in one.
A kind of valve packing hold down gag, comprise the valve body be made up of valve upper cover, valve body support, filler, Gland, valve screw and handle, described valve screw passes and is arranged on valve body, described valve body support is upwards to extend and for a portal trestle of fixed valve screw mandrel from valve upper cover, described filler to be arranged in the valve screw mounting hole in valve upper cover and to be compressed by Gland, it is characterized in that, described Gland is real to be undertaken compressing by such structure:
At least two draw-in grooves are circumferentially provided with away from Gland one end face of valve upper cover described, and on described valve body support, a flat board is extended respectively to both sides, described flat board is provided with the bolt hole vertically coaxially arranged with described draw-in groove, described ram bolt square toes are stuck in the draw-in groove of the Gland matched with it, and the thread section of described ram bolt is through bolt hole, and thread section between Gland and valve body support is provided with the locking nut and pad that are compressed by Gland, by screwing the locking nut in ram bolt, just can facilitate the tightness of filler in regulating valve stuffing box, and then reach the object of sealed valve stuffing box.Lower end square head structure, object is that when screwing the nut of ram bolt like this, ram bolt just must not be rotated in order to be stuck in the Gland translot that matches with it; Thrust disc structure is transmitting thrust mainly, realizes the function compressing Gland; Dash, along structure, can stop the helical thread portion of the further up pollution ram bolt of leaking medium and nut; External thread structure and nut screw.
Further for realizing above-mentioned application target, all arranging corresponding with leak point be connected with circular groove and radial groove for what leakage arranged outward at Gland and valve upper cover upper-end surface, these grooves are that the Korrosionsmedium leaked out is drained as early as possible and created conditions.
Further, described draw-in groove is opening U-shaped outwardly or square groove.
The present invention compared with prior art, has significant advantage and effect:
The impacting force of valve packing is not the bolt tension force coming from original structure, but produced by the thrust of ram bolt.But also on Gland with some the sluicing grooves of symmetric design on valve upper cover, at utmost Protective valve door part particularly gland stud from the infringement of leaking medium.
Owing to regulating the bolt and nut part of filler tightness away from valve stuffing box, farthest can protect the helical thread portion of bolts and nuts, greatly reduce the maintenance of valve frequency, extend valve working life and reduce the expense that replacing valve brings and pay.
Accompanying drawing explanation
The plan view of the original widely used stay-bolt formula filler compacting device of accompanying drawing 1.
The side view of the original widely used stay-bolt formula filler compacting device of accompanying drawing 2.
Accompanying drawing 3 is plan views of ram bolt formula filler compacting device of the present invention.
Accompanying drawing 4 is A--A sectional view in Fig. 3.
Accompanying drawing 5 is I place partial enlarged drawing in Fig. 3.
Accompanying drawing 6 is valve upper cover plan view (comprising annular collecting tank and the radial strut sump pit structure of its upper-end surface).
Accompanying drawing 7 is valve upper cover plan view.
Accompanying drawing 8 is H--H sectional drawing in Fig. 7.
Accompanying drawing 9 is valve body support plan views.
Accompanying drawing 10 is valve body support plan views.
Accompanying drawing 11 is valve body bracket side views.
Accompanying drawing 12 is plan views of ram bolt.
Accompanying drawing 13 is side views of ram bolt.
Accompanying drawing 14 is plan views of ram bolt.
Accompanying drawing 15 is the D direction view in Figure 12.
Accompanying drawing 16 is Gland plan view (comprising annular collecting tank and the radial strut sump pit structure of its upper-end surface).
Accompanying drawing 17 is Gland plan views.
Accompanying drawing 18 is Gland side views.
In figure, 1 valve upper cover, 2 valve body supports, 3 Glands, 4 ram bolt, 5 nuts, 6 packing rings, 7 fillers, 8 is dull and stereotyped, 11 helical thread portions, 12 dash edges, 13 thrust discs, 14 square toes, 15 valve screws, 16U shape draw-in groove, 17,17 ' annular collecting tank, 18,18 ' radial strut sump pit, 21 bolts.
Embodiment
The object of this invention is to provide a kind of novel ram bolt formula valve packing hold down gag.This device is by comprising the valve body be made up of valve upper cover 1, valve body support 2, filler 7, Gland 3, valve screw 15 and handle as shown in Figure 3, and the ram bolt assembly for locking, and explains in detail respectively below to its structure.
Valve upper cover 1 and existing valve body structure coexist the installation slotted eye had in valve body for laying filler 7 and valve screw mutually, with reference to figure 6-Fig. 8.
Valve screw 15 upper end is handwheel, can rotate, and lower end connects spool, and valve screw 15 passes and is arranged on valve body.
As Figure 9-Figure 11, its lower end is connected with valve upper cover 1 by bolt valve body support 2, and it is for the top of fixed valve screw mandrel 15, provides a upper support to valve screw 15.Meanwhile, extend a flat board 8 respectively in valve body support both sides, form the pattern of flank, see shown in Fig. 9.The filler that filler 7 is arranged on valve upper cover part is installed in slotted eye, and upper end Gland 3 compresses, and filling material gland structure is referring to figures 16 to Figure 18.
Described Gland 3 is real to be undertaken compressing by such structure:
Shown in ram bolt 4, Figure 12-Figure 15, ram bolt 4 has spline square toes 14 below, and being assemblied in will as shown in Figure 2 on valve.These spline square toes 14 will be stuck in the U-shaped draw-in groove 16 at the two ends of Gland shown in Figure 16, and the threaded upper ends part 11 of ram bolt is by more loose through in the bolt hole in valve body support 2 upper end flat board in Fig. 4, and bolt hole plays positioning action.When tightening nut compressing filler, because whole bolt tail square toes are firmly stuck in the U-shaped draw-in groove 16 of the Gland 3 matched with it, therefore bolt must not rotate and mainly bear the thrust of nut 5, thrust disc 13 by ram bolt 4 lower end is resisted against on Gland 3 by this thrust, form the pattern of two end supports, and then the stuffing box packing 7 in compression stuffing box, realize the sealing at this place.In bolt upper end, thrust conducts to valve body support 2 by nut in Fig. 35, packing ring 6.
As shown in Figure 3, the annular space that Gland 3 endoporus and valve screw cylindrical are formed, the E place namely in figure; The annular space formed between cylindrical and valve upper cover valve body inner bore bottom Gland, the F place namely in figure.In the using process of filler-sealing type valve, this two place is the position the most easily occurring to leak.
For E, F two place easily produce the valve common fault of leakage, be all designed with annular collecting tank and radial strut sump pit structure in appropriate position.This structure can make the leaking medium very first time occurred drain via water conservancy diversion groove, drain nearby, and reducing time and the chance of the contact of Korrosionsmedium and valve part, is a kind of safety measure.Be exactly the leakage for E place concretely, Gland 3 be shaped with annular collecting tank 17 and see Figure 16 with radial strut sump pit 18(concrete form and structure); For the leakage at F place, be shaped with annular collecting tank 17 ' and radial strut sump pit 18 ', as Fig. 7 at valve upper cover 1.These grooves are all by milling cutter milling or directly cast out.
A dash is also had along 12 structures in the middle part of ram bolt shown in Figure 12.Even if as in Fig. 3, E, F place leaked already; Korrosionsmedium has been infected with the bottom of ram bolt; dash, along still Korrosionsmedium being stoped to continue to move ahead, screws position from infringement to protect dash along the 12 exposed outside thread positions of top ram bolt and ram bolt nut.
Claims (3)
1. a valve packing hold down gag, comprise by valve upper cover, valve body support, filler, Gland, the valve body of valve screw and handle composition, described valve screw passes and is arranged on valve body, described valve body support is upwards to extend and for a portal trestle of fixed valve screw mandrel from valve upper cover, described filler to be arranged in the valve screw mounting hole in valve upper cover and to be compressed by Gland, it is characterized in that, also comprise ram bolt, described ram bolt comprises bolt body, described bolt body has thread section, square toes are provided with in the one end away from thread section, the thrust disc that a cross-sectional area is greater than square toes cross-sectional area is provided with inside described square toes, and bolt body between described thrust disc and thread section is also provided with the dash edge that a section is greater than bolt body section, described Gland is undertaken compressing by such structure:
At least two draw-in grooves are circumferentially being provided with away from described Gland one end face of valve upper cover, and on described valve body support, a flat board is extended respectively to both sides, described flat board is provided with the bolt hole vertically coaxially arranged with described draw-in groove, described ram bolt square toes are stuck in the draw-in groove of the Gland matched with it, and the thread section of described ram bolt is through bolt hole, and thread section between Gland and valve body support is provided with the locking nut and pad that are compressed by Gland.
2. a kind of valve packing hold down gag according to claim 1, it is characterized in that, be provided with corresponding with leakage point and for the circular groove leakage arranged and radial groove, wherein said circular groove is connected with radial groove outward at Gland and valve upper cover upper-end surface.
3. a kind of valve packing hold down gag according to claim 1, is characterized in that, described draw-in groove is opening U-shaped outwardly or square groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112487.2A CN103851256B (en) | 2014-03-25 | 2014-03-25 | A kind of ram bolt and filler compacting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112487.2A CN103851256B (en) | 2014-03-25 | 2014-03-25 | A kind of ram bolt and filler compacting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103851256A CN103851256A (en) | 2014-06-11 |
| CN103851256B true CN103851256B (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410112487.2A Expired - Fee Related CN103851256B (en) | 2014-03-25 | 2014-03-25 | A kind of ram bolt and filler compacting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103851256B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315247B (en) * | 2014-10-22 | 2016-10-12 | 安徽淮化股份有限公司 | The replacing options of valve packing gland pressing plate |
| CN105299307A (en) * | 2015-11-18 | 2016-02-03 | 胡和萍 | Hydraulic pump switching valve for industrial excavator |
| CN107676550B (en) * | 2017-11-01 | 2024-02-27 | 贾志庆 | Power cable filling device of electric submersible pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3149847A (en) * | 1963-05-31 | 1964-09-22 | Crane Co | Stuffing box tau-bolt lug arrangement for valves |
| DE2429359A1 (en) * | 1973-06-25 | 1975-01-23 | Severoceska Armaturka N P | Bayonet fixing for gland packing retainer - has recesses for bolt fixing heads of valve spindles for rapid removal |
| DE102004018684A1 (en) * | 2004-04-17 | 2005-11-03 | Daimlerchrysler Ag | Bolted connection for motor vehicle, has screw with long threaded bolt that is turned in through internal thread provided in socket of flange of engine mount till receiving thread of engine, for assembling engine and mount |
| CN201433990Y (en) * | 2009-07-21 | 2010-03-31 | 任旭辉 | Limit bolt |
| CN202597883U (en) * | 2012-04-19 | 2012-12-12 | 自贡高中压阀门厂 | Improved packing structure for main water inlet valve of water turbine |
| CN203892701U (en) * | 2014-03-25 | 2014-10-22 | 济钢集团有限公司 | Valve packing pressing structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202302273U (en) * | 2011-10-27 | 2012-07-04 | 高东阀门有限公司 | Valve filler compression structure |
| CN202418668U (en) * | 2011-12-08 | 2012-09-05 | 江苏宏泰石化机械有限公司 | Reversely-sealed valve capable of replacing packing on line |
| CN102758964B (en) * | 2012-07-11 | 2013-07-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN203322470U (en) * | 2013-06-24 | 2013-12-04 | 武汉钢铁(集团)公司 | Filler sealing structure |
-
2014
- 2014-03-25 CN CN201410112487.2A patent/CN103851256B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3149847A (en) * | 1963-05-31 | 1964-09-22 | Crane Co | Stuffing box tau-bolt lug arrangement for valves |
| DE2429359A1 (en) * | 1973-06-25 | 1975-01-23 | Severoceska Armaturka N P | Bayonet fixing for gland packing retainer - has recesses for bolt fixing heads of valve spindles for rapid removal |
| DE102004018684A1 (en) * | 2004-04-17 | 2005-11-03 | Daimlerchrysler Ag | Bolted connection for motor vehicle, has screw with long threaded bolt that is turned in through internal thread provided in socket of flange of engine mount till receiving thread of engine, for assembling engine and mount |
| CN201433990Y (en) * | 2009-07-21 | 2010-03-31 | 任旭辉 | Limit bolt |
| CN202597883U (en) * | 2012-04-19 | 2012-12-12 | 自贡高中压阀门厂 | Improved packing structure for main water inlet valve of water turbine |
| CN203892701U (en) * | 2014-03-25 | 2014-10-22 | 济钢集团有限公司 | Valve packing pressing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103851256A (en) | 2014-06-11 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20160413 Termination date: 20190325 |