CN206668664U - A kind of blow cylinder device - Google Patents
A kind of blow cylinder device Download PDFInfo
- Publication number
- CN206668664U CN206668664U CN201720422013.7U CN201720422013U CN206668664U CN 206668664 U CN206668664 U CN 206668664U CN 201720422013 U CN201720422013 U CN 201720422013U CN 206668664 U CN206668664 U CN 206668664U
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- CN
- China
- Prior art keywords
- piston rod
- cylinder
- gas pressure
- piston
- energy accumulation
- Prior art date
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Abstract
The utility model discloses a kind of blow cylinder device, including cylinder, the cylinder is connected with energy accumulation container, the blocking mechanism that can be used in stopping piston rod movement is provided with the movement position of piston rod in the cylinder, the blocking mechanism prevents piston movement before cylinder interior gas pressure reaches designated value, when cylinder interior gas pressure reaches designated value, the blocking mechanism releases the stop to piston rod, and the piston rod moves in the case where specifying gas pressure.The setting that the utility model passes through blocking mechanism, with higher gas pressure when can start piston movement, simultaneously by setting energy accumulation container, be advantageous to slow down the pressure loss during piston movement, when energy accumulation container volume is sufficiently large, the maintenance of pressure can rely primarily on energy accumulation container during piston movement, advantageously reduce system weight and system cost, pass through the cooperation of blocking mechanism and energy accumulation container, piston single output work and gas pressure is tended to be linear, and be advantageous to the regulation of piston single output work.
Description
Technical field
The utility model belongs to pneumatics field, more particularly to a kind of blow cylinder device.
Background technology
In some application environments, launch to launch in wind tunnel experiment, it is necessary to take less space such as aircraft load and realize
Larger thrust promotes other devices, and need it is in the case where cylinder piston stroke is constant a wide range of (maximum 50% with
On) regulation output work.Conventional air cylinder device can adjust thrust and single output work by adjusting supply gas pressure, but due to
The compressibility of gas, the lateral pressure of piston one are improved with the gaseous mass increase by valve, pressure-regulating device,
When pressure rises to certain value, when the piston thrust is more than frictional force, piston just has begun to move, by traditional valve stream
Amount, pressure regulation device flow restriction, the quick motion of piston limit the speed of the lateral pressure of piston one raising, limit whole
Piston thrust in working stroke, it is unfavorable for the raising that piston single promotes output work.And conventional blow cylinder structure makes it
Substantially do not possess the ability of output work regulation.
Utility model content
Goal of the invention of the present utility model is：For above-mentioned problem, there is provided a kind of unit volume thrust, unit
Volume single output work is higher and single output work adjustable impact air cylinder device.
What the technical solution of the utility model was realized in：A kind of blow cylinder device, including cylinder, its feature exist
In：The cylinder is connected with energy accumulation container, is provided with the cylinder on the movement position of piston rod and be can be used in stopping work
The blocking mechanism of stopper rod motion, the blocking mechanism prevent piston movement before cylinder interior gas pressure reaches designated value, when
When cylinder interior gas pressure reaches designated value, the blocking mechanism releases the stop to piston rod, and the piston rod is in specified gas
Pressure effect is lower to move.
Blow cylinder device described in the utility model, its described energy accumulation container pass through pipeline and cylinder block internal cavity
Connection, either the energy accumulation container is connected directly between on cylinder or using the part cavity in the cylinder block as accumulation of energy
Container.
Blow cylinder device described in the utility model, its described blocking mechanism include piston rod stopper, the piston
Bar stopper is connected with the flange or groove corresponding matching, the piston rod stopper set on piston rod with drive mechanism,
Before the cylinder interior gas pressure reaches designated value, the piston rod stopper is resisted against at the flange of piston rod or is placed in
In the groove of piston rod, to prevent piston rod movement, when the cylinder interior gas pressure reaches designated value, the piston rod resistance
Block departs from the flange on piston rod or groove in the presence of drive mechanism and releases the stop to piston rod, the work
Stopper rod moves in the case where specifying gas pressure.
The utility model can prevent piston from transporting by the setting of blocking mechanism before gas pressure reaches designated value
It is dynamic, with higher gas pressure when starting piston movement, while by setting energy accumulation container, be advantageous in piston movement mistake
Slow down the pressure loss in journey, when energy accumulation container volume is sufficiently large, during piston movement the maintenance of pressure can rely primarily on accumulation of energy
Container, then valve, the latus rectum of pressure-regulating device, traffic requirement can reduce, advantageously reduce system weight and system cost,
By the cooperation of blocking mechanism and energy accumulation container, piston single output work and gas pressure is set to tend to be linear, and be advantageous to piston
The regulation of single output work.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is regular cyclical single output work with valve upstream pressure change curve
Fig. 3 is the utility model single output work with valve upstream pressure change curve.
Reference：1 is cylinder, and 2 be energy accumulation container, and 3 be piston rod, and 4 be pipeline, and 5 be piston rod stopper, and 6 be convex
Edge.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in figure 1, a kind of blow cylinder device, including cylinder 1, the cylinder 1 is connected with energy accumulation container 2, described
The blocking mechanism that can be used in stopping that piston rod 3 moves, the stop machine are provided with cylinder 1 on the movement position of piston rod 3
Structure prevents piston movement in cylinder 1 before gas pressure reaches designated value, when gas pressure reaches designated value in cylinder 1,
The blocking mechanism releases the stop to piston rod 3, and the piston rod 3 moves in the case where specifying gas pressure.
Wherein, the energy accumulation container 2 is connected by the pipeline 4 of big orifice with the cylinder interior cavity of cylinder 1；When the impact
When the installing space of air cylinder device does not limit, the pipeline of big orifice can be cancelled, will the energy accumulation container 2 be connected directly between
On cylinder 1, or using the part cavity in the cylinder body of cylinder 1 as energy accumulation container 2.
In the present embodiment, the blocking mechanism includes piston rod stopper 5, the piston rod stopper 5 and piston rod 3
The flange 6 or groove corresponding matching of upper setting, the piston rod stopper 5 are connected with drive mechanism, the gas in the cylinder 1
Before pressure reaches designated value, the piston rod stopper 5 is resisted against at the flange of piston rod 3 or is placed in the recessed of piston rod 3
In groove, to prevent piston rod 3 from moving, when gas pressure reaches designated value in the cylinder 1, the piston rod stopper 5 exists
In the presence of drive mechanism, depart from the flange 6 on piston rod 3 or groove and release the stop to piston rod 3, the piston rod
3 move in the case where specifying gas pressure.
Wherein, Fig. 2 and Fig. 3 respectively illustrate using regular cyclical with using cylinder single output work of the present utility model with
The curve map of valve upstream pressure change, it is seen that piston single output work of the present utility model tends to be linear with gas pressure, and
And the work(of piston single output has good regulatory function.
The course of work of the present utility model is：
1st, piston rod is returned into initial position, piston rod, which returns to initial position, to use low pressure by using cylinder itself
Power, small-flow gas promote piston rod movement, external force can also be used to promote piston rod, to simplify apparatus structure, save space.
The 2nd, piston rod stopper is placed in the position for stopping piston rod movement, the motion of piston rod stopper can use gas
The mode such as dynamic, electronic, manpower manual.
3rd, air-supplying valve is opened, makes energy accumulation container accumulation of energy to specified pressure.
4th, piston rod stopper is removed, piston rod is moved in the case where specifying gas pressure.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of blow cylinder device, including cylinder（1）, it is characterised in that：The cylinder（1）With energy accumulation container（2）Connection,
The cylinder（1）Middle piston rod（3）Movement position on be provided with can be used in stop piston rod（3）The blocking mechanism of motion,
The blocking mechanism is in cylinder（1）Interior gas pressure prevents piston movement before reaching designated value, works as cylinder（1）Interior gas pressure
When reaching designated value, the blocking mechanism is released to piston rod（3）Stop, the piston rod（3）In the case where specifying gas pressure
Motion.
2. blow cylinder device according to claim 1, it is characterised in that：The energy accumulation container（2）Pass through pipeline（4）With
Cylinder（1）Cylinder interior cavity connects, or the energy accumulation container（2）It is connected directly between cylinder（1）On, or by the cylinder
（1）Part cavity in cylinder body is as energy accumulation container（2）.
3. blow cylinder device according to claim 1 or 2, it is characterised in that：The blocking mechanism hinders including piston rod
Block（5）, the piston rod stopper（5）With piston rod（3）The flange or groove corresponding matching of upper setting, the piston rod resistance
Block（5）It is connected with drive mechanism, in the cylinder（1）Before interior gas pressure reaches designated value, the piston rod stopper
（5）It is resisted against piston rod（3）Flange at or be placed in piston rod（3）Groove in, to prevent piston rod（3）Motion, works as institute
State cylinder（1）When interior gas pressure reaches designated value, the piston rod stopper（5）In the presence of drive mechanism, with piston
Bar（3）On flange or groove depart from and release to piston rod（3）Stop, the piston rod（3）In the case where specifying gas pressure
Motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720422013.7U CN206668664U (en) | 2017-04-21 | 2017-04-21 | A kind of blow cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720422013.7U CN206668664U (en) | 2017-04-21 | 2017-04-21 | A kind of blow cylinder device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668664U true CN206668664U (en) | 2017-11-24 |
Family
ID=60375611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720422013.7U Active CN206668664U (en) | 2017-04-21 | 2017-04-21 | A kind of blow cylinder device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668664U (en) |
-
2017
- 2017-04-21 CN CN201720422013.7U patent/CN206668664U/en active Active
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| GR01 | Patent grant |