CN210660784U - Pressure limiting device for gas input of gas motor - Google Patents
Pressure limiting device for gas input of gas motor Download PDFInfo
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- CN210660784U CN210660784U CN201921701293.0U CN201921701293U CN210660784U CN 210660784 U CN210660784 U CN 210660784U CN 201921701293 U CN201921701293 U CN 201921701293U CN 210660784 U CN210660784 U CN 210660784U
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Abstract
The utility model discloses a gaseous pressure limiting device of air motor input, it is by the air motor, the gland in precession motor one end internal thread hole, the straight joint in precession gland center internal thread hole, the three way connection who directly connects the face of cylinder is located to the cover, the first sealed pad of directly connecting the face of cylinder and setting between gland and three way connection is located to the cover, the second sealed pad of directly connecting the face of cylinder and setting between three way connection and the shoulder shaft terminal surface that directly connects was equipped with is located to the cover, the steel ball of the internal cone face of setting in directly connecting, the spring force adjust knob in precession straight joint center internal thread hole, the spring that sets up between spring force adjust knob and steel ball constitutes. The utility model has the advantages of can restrict the gas pressure that gets into in the gas motor, make the gas motor work under standard operating pressure all the time, effectively avoid parts such as gas motor to damage.
Description
Technical Field
The utility model relates to a pneumatic actuator especially relates to a gas pressure limiting device is inputed to air motor.
Background
For safety reasons, the pneumatic system is generally provided with triple parts, namely a filter, a pressure reducing valve and an oil atomizer, so as to stabilize the air pressure of the whole pneumatic system and avoid damage to the pneumatic part caused by sudden high system pressure. However, the pressure reducing valve also has a damage condition, and the continuous use of the air motor is very dangerous at this time because the air motor has no safety measures at present, and if the input air pressure of the air motor suddenly rises at this time, the damage or the accident of the air motor or the parts connected with the air motor is easily caused.
Disclosure of Invention
The utility model aims at making up the not enough of prior art and providing a can restrict the input gas pressure of air motor and rise, make the air motor input gas pressure limiting device of work under standard operating pressure all the time.
The utility model discloses a by the air motor, the gland in precession motor one end internal thread hole, the straight joint in precession gland center internal thread hole, the three way connection who directly connects the face of cylinder is located to the cover, the cover is located the straight joint face of cylinder and is set up the first sealed pad between gland and three way connection, the cover is located the straight joint face of cylinder and is set up the sealed pad of second between the shoulder shaft terminal surface that three way connection and straight joint were equipped with, the steel ball of setting at the straight joint internal cone face, the spring force adjust knob in precession straight joint center internal thread hole, the spring that sets up between spring force adjust knob and steel ball constitutes.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that: because the input gas pressure limiting device is arranged at the air inlet joint of the air motor, the pressure of gas entering the air motor is effectively limited, the air motor always works under the standard working pressure, and the damage to the components such as the air motor and the like can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, an air motor; 2. a second air inlet; 3. a gland; 4. a first gasket; 5. a three-way joint; 6. a second gasket; 7. a straight-through joint; 8. a pressure relief port; 9. a spring force adjustment knob; 10. a spring; 11. a steel ball; 12. a first air inlet.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a gaseous pressure limiting device of air motor input comprises air motor 1, the gland 3 in the screw-in motor 1 right-hand member internal thread hole, the straight joint 7 in screw-in gland 3 center internal thread hole, the tee bend 5 of straight joint 7 left side face of cylinder is located to the cover, the first sealed pad 4 of straight joint 7 left side face of cylinder and setting between 3 right-hand member end faces of gland and tee bend 5 left end faces is located to the cover, the second sealed pad 6 of straight joint 7 left side face of cylinder and setting between the tee bend 5 right-hand member end face and the left step shaft end face that straight joint 7 was equipped with is located to the cover, the steel ball 11 of the circular cone face in the straight joint 7 right side is set up, screw-in straight joint 7 right side center internal thread hole's spring force adjust knob 9, the spring 10 of setting between spring force adjust knob 9.
The utility model discloses gaseous pressure limiting device of air motor input's theory of operation as follows:
compressed gas is fed from a source through a hose to the first gas inlet 12. When the pressure of the compressed gas is the standard working pressure, the elasticity of the spring 10 is adjusted through the spring force adjusting knob 9 according to the standard working pressure of the compressed gas in advance, so that the steel ball 11 is stationary, and the compressed gas enters the air motor 1 through the second gas inlet 2; when the pressure of the compressed gas exceeds the standard working pressure for some reason, a part of the compressed gas pushes the steel ball 11 open and is discharged to the atmosphere from the pressure relief port 8, so that the pressure of the compressed gas entering the air motor 1 through the second air inlet 2 is ensured to be the standard working pressure, and the normal work of the air motor 1 is ensured.
The specific use method is as follows:
the output gas of the gas source is firstly adjusted to the standard working pressure by the pressure reducing valve, then the second gas inlet 2 is blocked by a plug, and the first gas inlet 12 is connected to the gas source by a hose. If no gas is discharged from the pressure relief port 8, the spring force of the spring 10 is larger than the standard working pressure of compressed gas, at this time, the spring force adjusting knob 9 is unscrewed, the spring 10 is loosened until the pressure relief port 8 just discharges trace gas, and finally, the spring force adjusting knob 9 is screwed for a half circle; if the pressure relief opening 8 is exhausted, the spring force of the spring 10 is smaller than the standard working pressure of compressed gas, at the moment, the spring force adjusting knob 9 is screwed, the spring 10 is tightened until the pressure relief opening 8 just discharges trace gas, and finally, the spring force adjusting knob 9 is screwed for a half circle. After the adjustment, the plug for blocking the second air inlet 2 is removed, and the air motor 1 is normally used.
Claims (1)
1. A pressure limiting device for input gas of a gas motor is characterized by comprising the gas motor, a gland of an internal threaded hole at one end of the air-in motor, a through joint of an internal threaded hole in the center of the gland, a three-way joint sleeved on the cylindrical surface of the through joint, a first sealing gasket sleeved on the cylindrical surface of the through joint and arranged between the gland and the three-way joint, a second sealing gasket sleeved on the cylindrical surface of the through joint and arranged between the three-way joint and the end surface of a stepped shaft arranged on the through joint, a steel ball arranged on the inner conical surface of the through joint, a spring force adjusting knob screwed into the internal threaded hole in the center of the through joint and a spring arranged between the spring force adjusting knob and the steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921701293.0U CN210660784U (en) | 2019-10-12 | 2019-10-12 | Pressure limiting device for gas input of gas motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921701293.0U CN210660784U (en) | 2019-10-12 | 2019-10-12 | Pressure limiting device for gas input of gas motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660784U true CN210660784U (en) | 2020-06-02 |
Family
ID=70839834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921701293.0U Active CN210660784U (en) | 2019-10-12 | 2019-10-12 | Pressure limiting device for gas input of gas motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210660784U (en) |
-
2019
- 2019-10-12 CN CN201921701293.0U patent/CN210660784U/en active Active
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