CN203784427U - Compact double-buffering piston type fast actuation mechanism - Google Patents
Compact double-buffering piston type fast actuation mechanism Download PDFInfo
- Publication number
- CN203784427U CN203784427U CN201320740189.9U CN201320740189U CN203784427U CN 203784427 U CN203784427 U CN 203784427U CN 201320740189 U CN201320740189 U CN 201320740189U CN 203784427 U CN203784427 U CN 203784427U
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- buffering
- axle sleeve
- piston
- chamber
- buffer
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- Withdrawn - After Issue
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Abstract
The utility model relates to a compact double-buffering piston type fast actuation mechanism which comprises an upper cylinder cover, a lower cylinder cover and a piston arranged in a cylinder body and is characterized by further comprising a buffering plunger, a first buffering shaft sleeve, a second buffering shaft sleeve and a plunger type downward push rod. The first buffering shaft sleeve is arranged on one side of the cylinder body and connected with the upper cylinder cover through bolts. A first cylindrical step is arranged on the outer side of the buffering plunger and matched with the round inner cavity of the first buffering shaft sleeve slidably. The plunger type downward push rod is arranged on the other side of the piston, the second buffering shaft sleeve is sleeved with the plunger type downward push rod, and a second cylindrical step is arranged at the end of the second buffering shaft sleeve close to the piston and matched with the round inner wall of the second buffering shaft sleeve slidably. The compact double-buffering piston type fast actuation mechanism is compact and light in structure, a bidirectional buffering function can be achieved without other imposed intervention, and abnormal damage to devices caused by fast and frequent actions can be avoided effectively.
Description
Technical field
The utility model relates to a kind of actuator, is a kind of compact type in detail, has the piston type quick-acting type actuator of bidirectional buffering function.
Background technique
Piston-type direct line style pneumatic actuator, as a kind of drive unit, has possessed quite ripe technical specifications and perfect production and assembly technology.Particularly as a kind of application of control valve final controlling element, very extensive.For example, the valves such as Pneumatic single-seat modulating valve, Pneumatic corner valve, Pneumatic sleeve type modulating valve, Pneumatic gate valve, piston-type direct line style pneumatic actuator has application comparatively widely.Because scientific and technical continuous renewal is regenerated, production technology is constantly technological innovation also, and the development of control valve plays vital effect in the process of this field technology innovation.
Oxygen is widely used in the industries such as smelting iron and steel, petrochemical industry as industrial catalyst and the raw material of industry, because oxygen and other media very easily react, all must be very careful in far defeated and using process, therefore when people are to the control valve of operation oxygen, must not there is any unusual condition, otherwise may cause serious security incident.Oxygen control valve becomes the focus that people pay close attention to, and particularly needs the special pneumatic actuator for this type of valve design special use.Common pneumatic actuator is owing to easily making during fast shut-off spool clash into valve seat in course of action, have an accident after producing spark.The requirements of aspect such as the use of control valve of the type and safety can not have been met.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that existing piston type pneumatic actuator exists, provide a kind of compact type double buffering piston type fast speed actuating mechanism, its compact structure, connection terminals gas buffer structure make actuator slower in the movement speed in initial point position and final position, have avoided causing spool and the valve seat problem of shock fast due to the action of pneumatic actuator.
The technological scheme providing according to the utility model, the fast speed actuating mechanism of described compact type double buffering piston type, comprise upper cylinder cover, lower cylinder cap and piston, piston is arranged in cylinder body, and feature is: also comprise buffer plunger, the first buffering axle sleeve, the second buffering axle sleeve and plug type lower push-rod; Described the first buffering axle sleeve is arranged on upper cylinder cover, and with bolts between upper cylinder cover; Described buffer plunger outside is provided with the first cylindrical step, and the round cavity of the first cylindrical step and the first buffering axle sleeve is slidably matched; Described plug type lower push-rod is arranged on piston opposite side, and the second buffering axle sleeve is sleeved on plug type lower push-rod, and described the second buffering axle sleeve is provided with the second cylindrical step near the end of piston one side; The circular inner wall of described the second cylindrical step and the second buffering axle sleeve is slidably matched.
As further improvement of the utility model, described the first buffering axle sleeve bottom is provided with round cavity, and described the first buffer shaft puts and is provided with a first axle sleeve air source hole, and described round cavity communicates with the first axle sleeve air source hole.
As further improvement of the utility model, when described the first cylindrical step and the first buffering axle sleeve are slidably matched, between the first buffering axle sleeve and buffer plunger, form first buffer air chamber, between buffer plunger and piston, form a upper gas chamber; When the first cylindrical step and the first buffering axle sleeve disengaging, upper gas chamber and the first buffer air chamber synthesize an air chamber.
As further improvement of the utility model, when described the second cylindrical step and the second buffering axle sleeve are slidably matched, between plug type lower push-rod and the second buffering axle sleeve, form second buffer air chamber, between piston and the second buffering axle sleeve, form a lower chamber; When the second cylindrical step and the second buffering axle sleeve disengaging, the second buffer air chamber and lower chamber synthesize an air chamber.
As further improvement of the utility model, described upper cylinder cover is provided with a upper cylinder cover air source hole, and described upper cylinder cover air source hole provides air inlet or exhaust to piston upper gas chamber.
As further improvement of the utility model, described the first axle sleeve air source hole provides air inlet and exhaust to the second buffer air chamber forming between the first buffering axle sleeve and buffer plunger.
As further improvement of the utility model, described lower cylinder cap is provided with a lower cylinder cap air source hole, and described lower cylinder cap air source hole provides air inlet or exhaust to piston lower chamber.
As further improvement of the utility model, described the second buffer shaft puts and is provided with a second axle sleeve air source hole, and described the second axle sleeve air source hole provides air inlet and exhaust to the second buffer air chamber forming between the second buffering axle sleeve and plug type lower push-rod.
Compared with the prior art the utility model has the following advantages:
The utility model compact structure, light and handy, need not use other additional interventions can realize bidirectional buffering function.
The technological scheme manufacture that use the utility model provides and the pneumatic actuator that uses quick acting and frequent movement.Low cost of manufacture; Use actuator of the present utility model can effectively prevent from damaging base because quick frequent movement causes unit exception.Its connection terminals gas buffer structure makes actuator slower in the movement speed in initial point position and final position, has avoided causing spool and the valve seat problem of shock fast due to the action of pneumatic actuator.
Accompanying drawing explanation
Fig. 1 is that structure of the present utility model is used view.
Fig. 2 is the partial enlarged view of Fig. 1.
Fig. 3 is the partial enlarged view of figure II.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
The fast speed actuating mechanism of described compact type double buffering piston type, comprises buffer plunger 1, the first buffering axle sleeve 2, piston 3, the second buffering axle sleeve 4, plug type lower push-rod 5, the second axle sleeve air source hole 6, lower cylinder cap air source hole 7, upper cylinder cover air source hole 8, the first axle sleeve air source hole 9, the first cylindrical step 10 and the second cylinder type step 11,12 upper cylinder covers, 13 times cylinder caps, 14 cylinder bodies;
As shown in FIG. 1 to 3: comprise upper cylinder cover 12, lower cylinder cap 13 and piston 3; With bolts between described upper cylinder cover 12 and lower cylinder cap 13; Described piston 3 is arranged in cylinder body 14.Described the first buffering axle sleeve 2 is arranged on cylinder body upper end, and with bolts between upper cylinder cover 12; Described the first buffering axle sleeve 2 bottoms are provided with round cavity, and described round cavity communicates with the first axle sleeve air source hole 9.
Described buffer plunger 1 outside is provided with the first cylindrical step 10, the round cavity of the first cylindrical step 10 and the first buffering axle sleeve 2 is slidably matched as intermittence, when the first cylindrical step 10 and the first buffering axle sleeve 2 are when be slidably matched, between the first buffering axle sleeve and buffer plunger 1, form a first buffer air chamber D, between buffer plunger 1 and piston 3, form a upper gas chamber C; When the first cylindrical step 10 and the first buffering axle sleeve 2 disengaging, upper gas chamber C and the first buffer air chamber D synthesize an air chamber CD.
On described upper cylinder cover, establish a upper cylinder cover air source hole 8, described upper cylinder cover air source hole 8, in the fast speed actuating mechanism course of action of compact type double buffering piston type, provides the function of air inlet or exhaust to piston 3 upside air chamber C.
Described the first axle sleeve air source hole 9 provides air inlet and degassing function to the first buffer air chamber D forming between the first buffering axle sleeve 2 and buffer plunger 1.
Described plug type lower push-rod 5 is arranged on piston 3 lower ends, and plug type lower push-rod 5, through the second buffering axle sleeve 4, stretches out outside the fast speed actuating mechanism of compact type double buffering piston type, as the connecting end of external output.Described the second buffering axle sleeve 4 is provided with the second cylindrical step 11 near the end of piston 3 lower ends.
As shown in FIG. 1 to 3: the circular inner wall of described the second cylindrical step 11 and the second buffering axle sleeve 4 is slidably matched as intermittence, when the second cylindrical step 11 and the second buffering axle sleeve 4 are when be slidably matched, plug type lower push-rod 5 and second cushions between axle sleeve 4 and forms a second buffer air chamber A.Now, between piston 3 and the second buffering axle sleeve, form a lower chamber B; When the second cylindrical step 11 and the second buffering axle sleeve 4 disengaging, the second buffer air chamber A and lower chamber B synthesize an air chamber AB.
On described lower cylinder cap, establish a lower cylinder cap air source hole 7, described lower cylinder cap air source hole 7, in the fast speed actuating mechanism course of action of compact type double buffering piston type, provides the function of air inlet or exhaust to piston 3 downside air chamber B.
Described the second axle sleeve air source hole 6 provides air inlet and degassing function to the second buffer air chamber A forming between the second buffering axle sleeve 4 and plug type lower push-rod 5.
Plug type lower push-rod described in the utility model and described buffering axle sleeve two are slidably matched as intermittence, and during cooperation, plug type lower push-rod is divided into A and two air chambers of B by air chamber AB.Lower cylinder cap air source hole provides inlet and outlet function to B air chamber.During disengaging, upper cylinder cover air source hole and axle sleeve air source hole one provide inlet and outlet function to CD air chamber simultaneously.The utility model can be so that Pneumatic piston actuator, under the operating mode of frequent movement, damage inner body.And guarantee when valve core contacts with valve seat can not produce spark and cause the accident because of friction, collision.The utility model can valve Safety performance and repair rate, can save greatly human resources and reduce material cost.
Claims (8)
1. the fast speed actuating mechanism of compact type double buffering piston type, comprise upper cylinder cover (12), lower cylinder cap (13), cylinder body (14) and piston (3), described piston (3) is arranged in cylinder body (14), it is characterized in that: also comprise buffer plunger (1), the first buffering axle sleeve (2), the second buffering axle sleeve (4) and plug type lower push-rod (5); Described the first buffering axle sleeve (2) is arranged on cylinder body (14) one sides, and with bolts between upper cylinder cover (12); Described buffer plunger (1) outside is provided with the first cylindrical step (10), and the first cylindrical step (10) is slidably matched with the inner chamber of the first buffering axle sleeve (2); Described plug type lower push-rod (5) is arranged on piston (3) opposite side, and it is upper that the second buffering axle sleeve (4) is sleeved on plug type lower push-rod (5), and described the second buffering axle sleeve (4) is provided with the second cylindrical step (11) near the end of piston (3) one sides; Described the second cylindrical step (11) is slidably matched with the circular inner wall of the second buffering axle sleeve (4).
2. the fast speed actuating mechanism of compact type double buffering piston type as claimed in claim 1, it is characterized in that: described the first buffering axle sleeve (2) bottom is provided with round cavity, described the first buffering axle sleeve (2) is provided with a first axle sleeve air source hole (9), and described round cavity is connected with the first axle sleeve air source hole (9).
3. the fast speed actuating mechanism of compact type double buffering piston type as claimed in claim 1, it is characterized in that: when described the first cylindrical step (10) is slidably matched with the first buffering axle sleeve (2), between the first buffering axle sleeve (2) and buffer plunger (1), form first buffer air chamber (D), between buffer plunger (1) and piston (3), form a upper gas chamber (C); When the first cylindrical step (10) departs from the first buffering axle sleeve (2), upper gas chamber (C) and the synthetic air chamber (CD) of the first buffer air chamber (D).
4. the fast speed actuating mechanism of compact type double buffering piston type as claimed in claim 1, it is characterized in that: when described the second cylindrical step (11) is slidably matched with the second buffering axle sleeve (4), between plug type lower push-rod (5) and the second buffering axle sleeve (4), form second buffer air chamber (A), between piston (3) and the second buffering axle sleeve (2), form a lower chamber (B); When the second cylindrical step (11) departs from the second buffering axle sleeve (4), the second buffer air chamber (A) and the synthetic air chamber (AB) of lower chamber (B).
5. the fast speed actuating mechanism of compact type double buffering piston type as claimed in claim 1, it is characterized in that: described upper cylinder cover (12) is provided with a upper cylinder cover air source hole (8), described upper cylinder cover air source hole (8) provides air inlet or exhaust to piston (3) upper gas chamber (C).
6. the fast speed actuating mechanism of compact type double buffering piston type as claimed in claim 2, is characterized in that: described the first axle sleeve air source hole (9) provides air inlet and exhaust to the second buffer air chamber (D) forming between the first buffering axle sleeve (2) and buffer plunger (1).
7. the fast speed actuating mechanism of compact type double buffering piston type as claimed in claim 1, it is characterized in that: described lower cylinder cap (13) is provided with a lower cylinder cap air source hole (7), described lower cylinder cap air source hole (7) provides air inlet or exhaust to piston (3) lower chamber (B).
8. the fast speed actuating mechanism of compact type double buffering piston type as claimed in claim 1, it is characterized in that: described the second buffering axle sleeve (4) is provided with a second axle sleeve air source hole (6), and described the second axle sleeve air source hole (6) provides air inlet and exhaust to the second buffer air chamber (A) forming between the second buffering axle sleeve (4) and plug type lower push-rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740189.9U CN203784427U (en) | 2013-11-20 | 2013-11-20 | Compact double-buffering piston type fast actuation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740189.9U CN203784427U (en) | 2013-11-20 | 2013-11-20 | Compact double-buffering piston type fast actuation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784427U true CN203784427U (en) | 2014-08-20 |
Family
ID=51320614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320740189.9U Withdrawn - After Issue CN203784427U (en) | 2013-11-20 | 2013-11-20 | Compact double-buffering piston type fast actuation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784427U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644354A (en) * | 2013-11-20 | 2014-03-19 | 无锡智能自控工程股份有限公司 | Compact double-buffering-piston rapid executing mechanism |
| CN104633248A (en) * | 2015-02-10 | 2015-05-20 | 无锡智能自控工程股份有限公司 | Low-frictional piston type actuator |
| CN113389767A (en) * | 2021-07-23 | 2021-09-14 | 中国科学院合肥物质科学研究院 | Double-acting pneumatic actuator with long-stroke large-cylinder-diameter structure and control system thereof |
-
2013
- 2013-11-20 CN CN201320740189.9U patent/CN203784427U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644354A (en) * | 2013-11-20 | 2014-03-19 | 无锡智能自控工程股份有限公司 | Compact double-buffering-piston rapid executing mechanism |
| CN104633248A (en) * | 2015-02-10 | 2015-05-20 | 无锡智能自控工程股份有限公司 | Low-frictional piston type actuator |
| CN113389767A (en) * | 2021-07-23 | 2021-09-14 | 中国科学院合肥物质科学研究院 | Double-acting pneumatic actuator with long-stroke large-cylinder-diameter structure and control system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |