CN105485410A - Anti-shock buffering mechanism of angular travel cylinder - Google Patents
Anti-shock buffering mechanism of angular travel cylinder Download PDFInfo
- Publication number
- CN105485410A CN105485410A CN201610069725.5A CN201610069725A CN105485410A CN 105485410 A CN105485410 A CN 105485410A CN 201610069725 A CN201610069725 A CN 201610069725A CN 105485410 A CN105485410 A CN 105485410A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- blind hole
- sphere
- round nut
- damping mechanism
- 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
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Classifications
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- 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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
Abstract
The invention discloses an anti-shock buffering mechanism of an angular travel cylinder. The anti-shock buffering mechanism is used for off-positions of butterfly valves and ball valves which act quickly and frequently. The mechanism comprises the cylinder and a box, the box is internally provided with a piston rod connected with the cylinder, one end of the piston rod is connected with a connection block, and the connection block slides on a guide rod. A limiting bolt is further arranged at the end of the box. A blind hole is formed in the connection block and internally provided with a plurality of disc springs. Buffering blocks are arranged in inner circles of the disc springs. Round nuts are further arranged in the blind hole, and the buffering blocks can axially move in the round nuts. According to the anti-shock buffering mechanism of the angular travel cylinder, a disc spring set is adopted as a kinetic energy absorbing and releasing component, the anti-shock and buffering effects are obvious, the buffering stroke is small, and the requirement for quick action can be met. The anti-shock buffering mechanism is simple in structure, required installation space is small, maintenance is not needed, and the mechanism is easy to replace. Design and manufacturing cost is relatively low, and the switching life of the valves and the cylinder can be greatly prolonged.
Description
Technical field
The present invention relates to a kind of protecting against shock damping mechanism, particularly a kind of angle stroke cylinder protecting against shock damping mechanism, there is final position protecting against shock and spring buffering function, can be arranged on the stroke cylinder of angle, for quick, the butterfly valve of frequent movement and the protecting against shock damping mechanism of ball valve off-position.
Background technique
At present, cylinder is installed necessity configuration that damping mechanism has been frequent switch and fast shut-off class valve actuator, and the cylinder being furnished with damping mechanism can reduce the wearing and tearing of valve sealing element greatly, extends its working life, also can extend the life-span of cylinder simultaneously.Particularly be applied to the pneumatic actuator that program control butterfly valve, program control ball valve etc. need frequent switch and fast shut-off, more need to be equipped with damping mechanism to extend the working life of valve and pneumatic actuator.
Existing damping mechanism be mostly be arranged on cylinder interior gas buffering or cylindrical spring is master as internal damping mechanism, pneumatic actuator due to angle stroke action need reserve certain stroke to meet the demand of valve closing power, so class internal damping mechanism needs to take larger cylinder stroke.Functionally there is comparatively outstanding contradiction in protecting against shock function and quick acting two kinds in existing internal damping mechanism, badly influence the efficiency of movement of valve, its design and manufacture cost is also relatively high.
Summary of the invention
The object of the invention is the problems referred to above overcoming the existence of existing damping mechanism, a kind of angle stroke cylinder protecting against shock damping mechanism is provided, is installed on the contiguous block in the stroke cylinder casing of angle, avoids the quick acting stroke affecting cylinder.
According to technological scheme provided by the invention, a kind of angle stroke cylinder protecting against shock damping mechanism, comprise cylinder and casing, be provided with the piston rod connect with cylinders in casing, one end of piston rod is connected with contiguous block; Described contiguous block slides on the guide bar; The end of casing is also provided with caging bolt;
Described contiguous block is provided with blind hole, is provided with several butterfly springs in blind hole, is provided with buffer stopper, is also provided with round nut in blind hole in the inner circle of butterfly spring, and buffer stopper can move axially in round nut.
Described blind via bottom is flush end, and butterfly spring divides the positive and negative flush end place facing to being positioned over blind via bottom in groups; Leave space between the cylindrical of described butterfly spring and the inwall of blind hole, meet the amount extended laterally in butterfly spring telescopic process.
Outside described blind hole and the outside of round nut is equipped with fastening screw thread, and two fastening screw threads coincide mutually formation screw pair, make contiguous block and round nut fastened to each other.
Inner side bottom described round nut is provided with sphere, and central authorities are provided with circular inner hole, and edge is also provided with and tightens hole.
Described buffer stopper is made up of the first cylinder, step and the second cylinder; The inner circle Spielpassung of the first cylinder and butterfly spring; The circular inner hole of the second cylinder and round nut is slidably connected, the end of the second cylinder and caging bolt Intermittent Contact.
Described step one end is the first sphere B, and the other end is the second sphere C, and centre is cylndrical surface A, and the first sphere B contacts with the interior round-formed ball of butterfly spring, and the second sphere C contacts with the spheric balling-up bottom round nut.
Beneficial effect of the present invention: angle of the present invention stroke cylinder protecting against shock damping mechanism adopts butterfly spring group as kinetic energy absorption and releasing member, protecting against shock and buffering successful, and cushion stroke is little, can meet quick acting requirement.This protecting against shock damping mechanism structure is simple, and required installing space is little, non-maintaining, and is easy to change.Design and manufacture cost is relatively low, greatly can improve the operating life of valve and cylinder.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention.
Fig. 2 is structure plan view of the present invention.
Fig. 3 is I cross section of the present invention enlarged diagram.
Fig. 4 is buffer stopper enlarged diagram of the present invention.
Fig. 5 is round nut enlarged diagram of the present invention.
Description of reference numerals: 1, cylinder; 2, casing; 3, contiguous block; 4, butterfly spring; 5, buffer stopper; 5-1, the first cylinder; 5-2, step; 5-3, the second cylinder; 6, round nut; 6-1, sphere; 6-2, circular inner hole; 6-3, tighten hole; 7, caging bolt; 8, piston rod; 9, guide rod; 10, blind hole; A, cylndrical surface; B, the first sphere; C, the second sphere.
Embodiment
As Figure 1-5: a kind of angle stroke cylinder protecting against shock damping mechanism, comprise cylinder 1 and casing 2, be provided with the piston rod 8 be connected with cylinder 1 in casing 2, one end of piston rod 8 is connected with contiguous block 3; Described contiguous block 3 slides on guide rod 9; The end of casing 2 is also provided with caging bolt 7;
Described contiguous block 3 is provided with blind hole 10, is provided with several butterfly springs 4, in the inner circle of butterfly spring 4, is provided with buffer stopper 5, be also provided with round nut 6 in blind hole 10 in blind hole 10, and buffer stopper 5 can move axially in round nut 6.
Be flush end bottom described blind hole 10, butterfly spring 4 according to the needs of different pretightening force and stroke, point in groups positive and negative flush end place facing to being positioned over bottom blind hole 10; Leave space between the cylindrical of described butterfly spring 4 and the inwall of blind hole 10, meet the amount extended laterally in butterfly spring 4 telescopic process.
Outside described the blind hole 10 and outside of round nut 6 is equipped with fastening screw thread, and two fastening screw threads coincide mutually and form screw pair, make contiguous block 3 and round nut 6 fastened to each other.
Inner side bottom described round nut 6 is provided with sphere 6-1, and central authorities are provided with circular inner hole 6-2.Round nut 6 being also provided with and tightening hole 6-3, by tightening hole 6-3, round nut 6 being fixed on contiguous block 3.
Described buffer stopper 5 is made up of the first cylinder 5-1, step 5-2 and the second cylinder 5-3; The inner circle Spielpassung of the first cylinder 5-1 and butterfly spring 4; The circular inner hole 6-2 of the second cylinder 5-3 and round nut 6 is slidably connected, and plays the axially locating effect of buffer stopper; The end of the second cylinder 5-3 and caging bolt 7 Intermittent Contact.
Described step 5-2 one end is the first sphere B, and the other end is the second sphere C, and centre is cylndrical surface A, and the first sphere B contacts with the interior round-formed ball of butterfly spring 4, plays positioning action to butterfly spring 4; Second sphere C forms ball with the sphere 6-1 bottom round nut 6 and contacts.
Working principle of the present invention is: during the stroke cylinder action of angle, contiguous block 3 moves to stroke end, and the end face of the second cylinder 5-3 of buffer stopper 5 contacts with caging bolt 7; Buffer stopper 5 is subject to clashing into rear compression butterfly spring 4 toward contiguous block 3 internal motion, because butterfly spring 4 exists reaction force, the process need of dynamic pressure contracting butterfly spring 4 is made to consume the active force of angle stroke cylinder, until butterfly spring 4 is by after compression S1 stroke, to the stroke end of butterfly spring 4.This process makes process for slowing down angle stroke cylinder, has both realized protecting against shock pooling feature.Otherwise, when angle stroke cylinder counteragent, owing to needing the compressed action discharging butterfly spring 4, need the active force consuming angle stroke cylinder equally, protecting against shock cushioning effect during valve open can be realized.
Claims (5)
1. an angle stroke cylinder protecting against shock damping mechanism, comprises cylinder (1) and casing (2), is provided with the piston rod (8) be connected with cylinder (1) in casing (2), and one end of piston rod (8) is connected with contiguous block (3); Described contiguous block (3) is in the upper slip of guide rod (9); The end of casing (2) is also provided with caging bolt (7);
It is characterized in that: described contiguous block (3) is provided with blind hole (10), several butterfly springs (4) are provided with in blind hole (10), buffer stopper (5) is provided with in the inner circle of butterfly spring (4), also be provided with round nut (6) in blind hole (10), buffer stopper (5) can move axially in round nut (6); Described blind hole (10) bottom is flush end; Space is left between the cylindrical of described butterfly spring (4) and the inwall of blind hole (10).
2. angle stroke cylinder protecting against shock damping mechanism as claimed in claim 1, is characterized in that: the outside of described blind hole (10) outside and round nut (6) is equipped with binding thread.
3. angle stroke cylinder protecting against shock damping mechanism as claimed in claim 2, it is characterized in that: described round nut (6) bottom inside is provided with sphere (6-1), central authorities are provided with circular inner hole (6-2), and edge is also provided with tightens hole (6-3).
4. angle stroke cylinder protecting against shock damping mechanism as claimed in claim 3, is characterized in that: described buffer stopper (5) is made up of the first cylinder (5-1), step (5-2) and the second cylinder (5-3); The inner circle Spielpassung of the first cylinder (5-1) and butterfly spring (4); Second cylinder (5-3) is slidably connected with the circular inner hole (6-2) of round nut (6), the end of the second cylinder (5-3) and caging bolt (7) Intermittent Contact.
5. angle stroke cylinder protecting against shock damping mechanism as claimed in claim 4, it is characterized in that: described step (5-2) one end is the first sphere B, the other end is the second sphere C, centre is cylndrical surface A, first sphere B contacts with the interior round-formed ball of butterfly spring (4), and the second sphere C forms ball with the sphere (6-1) of round nut (6) bottom and contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069725.5A CN105485410B (en) | 2016-02-01 | 2016-02-01 | A kind of angle stroke cylinder protecting against shock buffer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069725.5A CN105485410B (en) | 2016-02-01 | 2016-02-01 | A kind of angle stroke cylinder protecting against shock buffer gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485410A true CN105485410A (en) | 2016-04-13 |
| CN105485410B CN105485410B (en) | 2017-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610069725.5A Active CN105485410B (en) | 2016-02-01 | 2016-02-01 | A kind of angle stroke cylinder protecting against shock buffer gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105485410B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238819A (en) * | 2020-02-03 | 2020-06-05 | 温州滨特尔控制设备有限公司 | Cylinder with adjustable angular stroke |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07269511A (en) * | 1994-03-29 | 1995-10-17 | Kitz Corp | Spring return type step opening and closing actuator |
| EP1593893A1 (en) * | 2004-05-06 | 2005-11-09 | Tyco Flow Control Kabushiki Kaisha | Emergency valve |
| JP2008138716A (en) * | 2006-11-30 | 2008-06-19 | Kitz Corp | Actuator for emergency shut-off with test moving mechanism |
| CN101858459A (en) * | 2010-06-22 | 2010-10-13 | 季忠庸 | Ready-package pneumatic actuator |
| CN103994264A (en) * | 2014-05-20 | 2014-08-20 | 无锡市捷诺自控设备有限公司 | Valve pneumatic actuator |
| CN204477455U (en) * | 2015-02-10 | 2015-07-15 | 浙江康赛特阀门有限公司 | Hydraulically controlled pneumatic final controlling element |
| CN105240594A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Single-action shifting fork type pneumatic actuator |
| CN205504144U (en) * | 2016-02-01 | 2016-08-24 | 无锡智能自控工程股份有限公司 | Impact mitigation mechanism is prevented to angle stroke cylinder |
-
2016
- 2016-02-01 CN CN201610069725.5A patent/CN105485410B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07269511A (en) * | 1994-03-29 | 1995-10-17 | Kitz Corp | Spring return type step opening and closing actuator |
| EP1593893A1 (en) * | 2004-05-06 | 2005-11-09 | Tyco Flow Control Kabushiki Kaisha | Emergency valve |
| JP2008138716A (en) * | 2006-11-30 | 2008-06-19 | Kitz Corp | Actuator for emergency shut-off with test moving mechanism |
| CN101858459A (en) * | 2010-06-22 | 2010-10-13 | 季忠庸 | Ready-package pneumatic actuator |
| CN103994264A (en) * | 2014-05-20 | 2014-08-20 | 无锡市捷诺自控设备有限公司 | Valve pneumatic actuator |
| CN204477455U (en) * | 2015-02-10 | 2015-07-15 | 浙江康赛特阀门有限公司 | Hydraulically controlled pneumatic final controlling element |
| CN105240594A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Single-action shifting fork type pneumatic actuator |
| CN205504144U (en) * | 2016-02-01 | 2016-08-24 | 无锡智能自控工程股份有限公司 | Impact mitigation mechanism is prevented to angle stroke cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238819A (en) * | 2020-02-03 | 2020-06-05 | 温州滨特尔控制设备有限公司 | Cylinder with adjustable angular stroke |
| CN111238819B (en) * | 2020-02-03 | 2021-08-24 | 滨特尔控制设备有限公司 | Angle stroke cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485410B (en) | 2017-11-28 |
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