CN205263667U - Pressure regulation control system - Google Patents
Pressure regulation control system Download PDFInfo
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- CN205263667U CN205263667U CN201520859891.6U CN201520859891U CN205263667U CN 205263667 U CN205263667 U CN 205263667U CN 201520859891 U CN201520859891 U CN 201520859891U CN 205263667 U CN205263667 U CN 205263667U
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- negative pressure
- regulation control
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Abstract
The utility model provides a pressure regulation control system, its innovation point lies in: including the pneumatic valves of negative pressure container, negative pressure transducer, servo pressure device and solenoid valve, negative pressure transducer includes a negative pressure transducer and the 2nd negative pressure transducer, and a negative pressure transducer is connected with negative pressure container electricity, and the 2nd negative pressure transducer is connected with servo pressure device electricity, the negative pressure container passes through the pneumatic valves of solenoid valve and is connected with the servo pressure device. Can pass through negative pressure transducer's record and reaction, the automatic piston that passes through with the internal gaseous pump drainage play of arbitrary container cavity, forms the negative pressure space, and can satisfy the experimental environment who has the requirement to the negative pressure value with the value of the negative pressure in cavity stable control in certain extent.
Description
Technical field
The utility model relates to pressure measurement control technology field, relates in particular to a kind of pressure regulation control system.
Background technology
Pressure is one of basic value of mechanics metering field. and the measurement of liquid high pressure has now been widely used in the fields such as Aeronautics and Astronautics, boats and ships, oil exploration as the pith of pressure test, also playing the part of important role in civilian industry in as process industries such as auto industrys, along with the proposition of field calibration technology, high pressure calibration testing demand is more and more extensive. each high voltage power system of national defense industry and the safety monitoring system of high-pressure bottle all will be used high tension instrument, in order to ensure the security of these field research and production work, need to these high tension instruments regularly be detected and be calibrated, whether data accurately directly affect research and production, affect completing smoothly of weapon model, this just has higher requirement to the metering of liquid high pressure, except liquid high pressure calibrating installation meets the required degree of accuracy index of the transmission of quantity value that specifies in pressure measurement utensil national measurement verification system table aspect performance indications, also wanting can be quick, automatically complete pressure calibration work.
Under high pressure have higher control accuracy, this pressure controling mode is all to utilize one end of piston to compress the fluid being enclosed in piston cylinder at present, thereby reaches pressure controlled object. Thisly utilize that piston is single-ended carries out pressure controlled method, caused carrying out pressure adjusting in high pressure range time, high-voltage oil liquid in cavity volume can produce very large axial thrust to relief piston, and this thrust can act directly in transmission system, has greatly increased the load of transmission system. For example Chinese patent CN103017976A discloses a kind of back-pressure balance formula liquid high pressure pressure-regulating device, it is characterized in that: comprise air-driven hydraulic pump (24), control stop valve (25), balance stop valve (26), pressure duct (27), pressure sensor (28), test port (29), ball wire bar pair (30), turbine worm reducer (31), servomotor (32), back-pressure balance formula adjusting device (33); After servomotor (32), turbine worm reducer (31), ball wire bar pair (30), back-pressure balance formula adjusting device (33) connect successively, back-pressure balance formula adjusting device (33) is connected with pressure sensor (28) by pipeline; Air-driven hydraulic pump is connected by pipeline with back-pressure balance formula adjusting device (33), middle by controlling stop valve (25), balance stop valve (26) adjusting control; Between pressure sensor (28) front end and back-pressure balance formula adjusting device (33), draw test port (29) by pressure duct, for connecting tested high-tension apparatus; This technical scheme, has solved capacity Pressure Control Technology fluid high-pressure in actual high-voltage use procedure problem large to the axial thrust of piston, realizes the light fine adjustment of high-pressure. But because condition needs, may also need to carry out the setting of negative pressure value, this technical scheme can't realize at present.
For another example Chinese patent CN201944025U discloses a kind of press machine controller (10), for controlled pressure machinery (30), this press (30) has the reducing gear portion (37) changing via the position speed reducing ratio of corresponding slide block (38) and drives the servomotor (41) of slide block (38), press machine controller (10) has: instruction generating unit (20), at least one in position command, speed command and the torque instruction of generation servomotor; Vibration instruction generating unit (13), according to generating vibration instruction for the predefined parameter of press machine controller; Slide position test section (12), the position of detection slide block; And vibration instruction appends portion (21,22,23), in the position of slide block, some in position command, speed command and the torque instruction to servomotor appends vibration instruction within the limits prescribed time. Thus, even if make press stop in the time that slide block is positioned at bottom dead centre, also can again start by little torque. This technical scheme has provided utilizes press motion, realize the control and regulation of pressure, but this scheme is to change to realize control slide block by slide block speed reducing ratio, and then drives the servomotor of slide block, and then ensure the existence of pressure.
But, generally speaking, current pressure tracking system lacks perfect control system, can not set flexibly negative pressure or malleation value, can not meet needs in experimentation and change negative pressure value or this function of malleation value size, can not in the temperature environment of a variation, control cavity internal pressure. Therefore, need to be further improved and solve problems of the prior art.
Utility model content
Change negative pressure value or this function of malleation value size for overcoming the needs in experimentation that can not meet that exist in prior art, the problem that can not control cavity internal pressure in the temperature environment of a variation, the utility model provides a kind of pressure regulation control system.
The technical solution adopted in the utility model is: a kind of pressure regulation control system, its innovative point is: comprise negative-pressure container, B/P EGR Back Pressure Transducer EGR, servo pressure device and magnetic valve pneumatic operated valve group, described B/P EGR Back Pressure Transducer EGR comprises the first B/P EGR Back Pressure Transducer EGR and the second B/P EGR Back Pressure Transducer EGR, this first B/P EGR Back Pressure Transducer EGR is electrically connected with negative-pressure container, and the second B/P EGR Back Pressure Transducer EGR is electrically connected with servo pressure device; Described negative-pressure container is connected with servo pressure device by magnetic valve pneumatic operated valve group.
On this basis, described magnetic valve pneumatic operated valve group comprises intake valve and air outlet valve, and this intake valve one end is connected with the first B/P EGR Back Pressure Transducer EGR, and the other end is connected with air outlet valve by the second B/P EGR Back Pressure Transducer EGR.
On this basis, described servo pressure device comprises power set, pressure control device and support; This support top is installed with pressure control device, and described power set are connected with pressure control device, realizes the power output of pressure control device.
On this basis, described power set comprise servomotor, reductor and shaft coupling, and the output of described servomotor is connected with the input of reductor, and this reductor is connected with pressure control device by shaft coupling.
On this basis, described pressure control device arranges a lift housing, in described lift housing, comprise successively from top to bottom piston, ball screw, worm screw, in establish turbo-turbine box and guide plate, described guide plate is laterally fixed on lift housing, and this guide plate is fixedly connected with in the middle of ball screw, bottom is vertical; Turbine in described turbine box is flexibly connected ball screw by key, and the top of this ball screw is connected with piston; Described worm screw is connected by gear with turbine, and worm screw is realized and drives turbine rotation.
On this basis, described servomotor output by reductor with after shaft coupling, be connected with worm screw.
On this basis, be provided with wear-resistant guiding ring and black box on described piston, described wear-resistant guiding ring is anchored on piston, and described black box is embedded in top land.
On this basis, described black box is combination sealing arrangement, from left to right be followed successively by delta seal pad, sealing O type circle, nylon back-up ring, lip packing pad and lip back-up ring, described lip back-up ring and lip packing pad are fixed, and nylon back-up ring and lip packing pad are fixed; Described nylon back-up ring, lip packing pad and lip back-up ring are fixedly connected with delta seal pad by sealing O type circle after fixing successively.
On this basis, described black box is provided with 1～3.
On this basis, described shaft coupling two ends are also provided with installing hole, on described installing hole, are provided with linear bearing, realize upper and lower straight-line guiding.
Compared with prior art, the beneficial effects of the utility model are:
(1) pressure regulation control system of the present utility model, can pass through record and the reaction of B/P EGR Back Pressure Transducer EGR, by piston, the gas in any vessel cavity is pumped out automatically, forms negative pressure space; And can control within the specific limits stable the negative pressure value in cavity, can meet the experimental situation that negative pressure value is had to requirement.
(2) pressure regulation control system of the present utility model, comprise negative-pressure container, B/P EGR Back Pressure Transducer EGR, servo pressure device and magnetic valve pneumatic operated valve group, drive worm screw to rotate by servomotor, worm screw drives worm gear rotation, worm gear connects ball screw by key and moves up and down, ball screw is connected with piston, drives piston to move up and down in cavity when ball screw moves up and down, can follow the tracks of negative pressure pressure size and also can follow the tracks of the positive pressure pressure size of control; The negative pressure in cavity is followed the tracks of in monitoring in real time, without guard, meets the operational requirements of experimental facilities.
(3) pressure regulation control system of the present utility model, possesses perfect control system, can set flexibly negative pressure or malleation value, meet needs in experimentation and change negative pressure value or this function of malleation value size, and can in the temperature environment of a variation, control cavity internal pressure, gas in a cavity is extracted out and formed negative pressure, and can monitor in real time the negative pressure value that setting needs.
(4) pressure regulation control system of the present utility model, is provided with wear-resistant guiding ring and black box on piston, wear-resistant guiding ring is anchored on piston, when work, mutually compresses, and makes as a whole seal group. Black box is embedded in top land, black box is combination sealing arrangement, from left to right be followed successively by delta seal pad, sealing O type circle, nylon back-up ring, lip packing pad and lip back-up ring, lip back-up ring and lip packing pad are fixed, and nylon back-up ring and lip packing pad are fixed; Nylon back-up ring, lip packing pad and lip back-up ring are fixedly connected with delta seal pad by sealing O type circle after fixing successively, and sealing is compact, is conducive to the quick formation of negative pressure.
Brief description of the drawings
Fig. 1 is the utility model pressure regulation control system overall schematic;
Fig. 2 is the utility model pressure regulation control system entirety top view;
Fig. 3 is black box schematic diagram in the utility model pressure regulation control system.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, 2 be the detailed description of the invention of a kind of pressure regulation control system of the utility model, comprise negative-pressure container 3, B/P EGR Back Pressure Transducer EGR, servo pressure device and magnetic valve pneumatic operated valve group, B/P EGR Back Pressure Transducer EGR comprises the first B/P EGR Back Pressure Transducer EGR 1 and the second B/P EGR Back Pressure Transducer EGR 2, this first B/P EGR Back Pressure Transducer EGR 1 is electrically connected with negative-pressure container 3, and the second B/P EGR Back Pressure Transducer EGR 2 is electrically connected with servo pressure device; Negative-pressure container is connected with servo pressure device by magnetic valve pneumatic operated valve group. The present embodiment can pass through record and the reaction of B/P EGR Back Pressure Transducer EGR, by piston, the gas in any vessel cavity is pumped out automatically, forms negative pressure space; And can control within the specific limits stable the negative pressure value in cavity, can meet the experimental situation that negative pressure value is had to requirement.
As shown in Figure 1: magnetic valve pneumatic operated valve group comprises intake valve 4 and air outlet valve 5, these intake valve 4 one end are connected with the first B/P EGR Back Pressure Transducer EGR 1, and the other end is connected with air outlet valve 5 by after the second B/P EGR Back Pressure Transducer EGR 2; Servo pressure device comprises power set, pressure control device and support 10; These support 10 tops are installed with pressure control device, and power set are connected with pressure control device, realize the power output of pressure control device.
As shown in Figure 1: power set comprise servomotor 12, reductor 11 and shaft coupling 13, the output of servomotor 12 is connected with the input of reductor 11, and this reductor 11 is connected with pressure control device by shaft coupling 13.
As shown in Figure 1, 2: pressure control device arranges a lift housing 100, in lift housing 100, comprise successively from top to bottom piston 6, ball screw 7, worm screw 14, in be provided with turbine box 8 and the guide plate 9 of turbine 15, guide plate 9 is laterally fixed on lift housing 100, and this guide plate 9 is fixedly connected with in the middle of ball screw 7, bottom is vertical; Turbine 15 in turbine box 8 is flexibly connected ball screw 7 by key, and the top of this ball screw 7 is connected with piston 6; Worm screw 14 is connected by gear with turbine 15, and worm screw 14 is realized and drives turbine 15 to rotate, and servomotor 12 outputs are connected with worm screw 14 with after shaft coupling 13 by reductor 11. The utility model drives worm screw to rotate by servomotor, and worm screw drives worm gear rotation, and worm gear connects ball screw by key and moves up and down, and ball screw is connected with piston, drives piston to move up and down in cavity when ball screw moves up and down.
As the present embodiment preferably, on the piston 6 of the present embodiment, be provided with wear-resistant guiding ring and black box, wear-resistant guiding ring is anchored on piston 6, black box is embedded in piston 6 tops.
As shown in Figure 3: black box is combination sealing arrangement, from left to right be followed successively by delta seal pad 101, sealing O type circle 102, nylon back-up ring 103, lip packing pad 104 and lip back-up ring 105, lip back-up ring 105 is fixed with lip packing pad 104, and nylon back-up ring 103 is fixed with lip packing pad 104; Nylon back-up ring 103, lip packing pad 104 and lip back-up ring 105 are fixedly connected with delta seal pad 101 by sealing O type circle 102 after fixing successively. When work, black box compresses mutually, makes as a whole seal group, and sealing is compact, is conducive to the quick formation of negative pressure.
As the present embodiment further preferably, black box is provided with 1～3.
As the present embodiment further preferably, shaft coupling 13 two ends are also provided with installing hole, are provided with linear bearing on installing hole, realize upper and lower straight-line guiding.
When the device work of the present embodiment, provide power source by servomotor, servomotor connects lift housing after connecting reductor, servomotor running drives reductor running, after through reductor, one or more levels slows down, drive lift housing servomotor torque to be amplified and the motion of reductor rotation is converted to the motion of the straight line up and down of ball screw in lift housing, the ball screw of lift housing promotes piston by shaft coupling, piston moves up and down, lift housing output serial connection B/P EGR Back Pressure Transducer EGR, detect output pressure and feed back to computer by B/P EGR Back Pressure Transducer EGR and form clossing pressure control loop.
In the time reducing in negative-pressure container negative pressure, first open intake valve (by the numerical values recited automatic decision of the first B/P EGR Back Pressure Transducer EGR), close air outlet valve, drive piston to move down by controlling servomotor forward, increase piston superjacent air space size, thereby the negative pressure in negative-pressure container is reduced.
In the time increasing in negative-pressure container negative pressure, first open intake valve (by the numerical values recited automatic decision of the first B/P EGR Back Pressure Transducer EGR), close air outlet valve, drive piston to move up by controlling servomotor reversion, increase piston superjacent air space size, thereby the negative pressure in negative-pressure container is increased.
Can make control rate by servomotor, positional precision is very accurate, voltage signal can be converted into torque and rotational speed to drive control object. Servo motor rotor rotating speed is subject to input signal control, and energy fast reaction, in automatic control system, as executive component, and there is the characteristics such as electromechanical time constant is little, the linearity is high, pickup voltage, the received signal of telecommunication can be converted to angular displacement or the angular speed output on motor reel.
Above-mentioned explanation illustrates and has described preferred embodiment of the present utility model, as previously mentioned, be to be understood that the utility model is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in utility model contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area. And the change that those skilled in the art carry out and variation do not depart from spirit and scope of the present utility model, all should be in the protection domain of the utility model claims.
Claims (10)
1. a pressure regulation control system, it is characterized in that: comprise negative-pressure container (3), B/P EGR Back Pressure Transducer EGR, servo pressure device and magnetic valve pneumatic operated valve group, described B/P EGR Back Pressure Transducer EGR comprises the first B/P EGR Back Pressure Transducer EGR (1) and the second B/P EGR Back Pressure Transducer EGR (2), this first B/P EGR Back Pressure Transducer EGR (1) is electrically connected with negative-pressure container (3), and the second B/P EGR Back Pressure Transducer EGR (2) is electrically connected with servo pressure device; Described negative-pressure container is connected with servo pressure device by magnetic valve pneumatic operated valve group.
2. pressure regulation control system according to claim 1, it is characterized in that: described magnetic valve pneumatic operated valve group comprises intake valve (4) and air outlet valve (5), this intake valve (4) one end is connected with the first B/P EGR Back Pressure Transducer EGR (1), and the other end is connected with air outlet valve (5) by the second B/P EGR Back Pressure Transducer EGR (2).
3. pressure regulation control system according to claim 1, is characterized in that: described servo pressure device comprises power set, pressure control device and support (10); This support (10) top is installed with pressure control device, and described power set are connected with pressure control device, realizes the power output of pressure control device.
4. pressure regulation control system according to claim 3, it is characterized in that: described power set comprise servomotor (12), reductor (11) and shaft coupling (13), the output of described servomotor (12) is connected with the input of reductor (11), and this reductor (11) is connected with pressure control device by shaft coupling (13).
5. pressure regulation control system according to claim 3, it is characterized in that: described pressure control device arranges a lift housing (100), in described lift housing (100), comprise successively from top to bottom piston (6), ball screw (7), worm screw (14), in be provided with turbine box (8) and the guide plate (9) of turbine (15), it is upper that described guide plate (9) is laterally fixed on lift housing (100), and this guide plate (9) is fixedly connected with in the middle of ball screw (7), bottom is vertical; Turbine (15) in described turbine box (8) is flexibly connected ball screw (7) by key, and the top of this ball screw (7) is connected with piston (6); Described worm screw (14) is connected by gear with turbine (15), and worm screw (14) is realized and drives turbine (15) rotation.
6. pressure regulation control system according to claim 3, is characterized in that: described servomotor (12) output is connected with worm screw (14) with after shaft coupling (13) by reductor (11).
7. pressure regulation control system according to claim 5, it is characterized in that: described piston is provided with wear-resistant guiding ring and black box on (6), it is upper that described wear-resistant guiding ring is anchored on piston (6), and described black box is embedded in piston (6) top.
8. pressure regulation control system according to claim 7, it is characterized in that: described black box is combination sealing arrangement, from left to right be followed successively by delta seal pad (101), sealing O type circle (102), nylon back-up ring (103), lip packing pad (104) and lip back-up ring (105), described lip back-up ring (105) is fixed with lip packing pad (104), and nylon back-up ring (105) is fixed with lip packing pad (104); Described nylon back-up ring (105), lip packing pad (104) and lip back-up ring (105) are fixedly connected with delta seal pad (101) by sealing O type circle (102) after fixing successively.
9. according to the pressure regulation control system described in claim 7 or 8, it is characterized in that: described black box is provided with 1-3.
10. pressure regulation control system according to claim 4, is characterized in that: described shaft coupling (13) two ends are also provided with installing hole, on described installing hole, are provided with linear bearing, realize upper and lower straight-line guiding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859891.6U CN205263667U (en) | 2015-10-30 | 2015-10-30 | Pressure regulation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859891.6U CN205263667U (en) | 2015-10-30 | 2015-10-30 | Pressure regulation control system |
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| Publication Number | Publication Date |
|---|---|
| CN205263667U true CN205263667U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859891.6U Expired - Fee Related CN205263667U (en) | 2015-10-30 | 2015-10-30 | Pressure regulation control system |
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| Country | Link |
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| CN (1) | CN205263667U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223976A (en) * | 2015-10-30 | 2016-01-06 | 南通市飞宇石油科技开发有限公司 | A kind of pressure regulation control system |
| CN109900472A (en) * | 2019-03-07 | 2019-06-18 | 宁波市劳动安全技术服务公司 | A kind of breather valve on-line measuring device |
| CN110976542A (en) * | 2019-10-30 | 2020-04-10 | 宿州市亿家门窗工程有限公司 | Aluminum alloy plate extrusion forming device and using method thereof |
-
2015
- 2015-10-30 CN CN201520859891.6U patent/CN205263667U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223976A (en) * | 2015-10-30 | 2016-01-06 | 南通市飞宇石油科技开发有限公司 | A kind of pressure regulation control system |
| CN109900472A (en) * | 2019-03-07 | 2019-06-18 | 宁波市劳动安全技术服务公司 | A kind of breather valve on-line measuring device |
| CN110976542A (en) * | 2019-10-30 | 2020-04-10 | 宿州市亿家门窗工程有限公司 | Aluminum alloy plate extrusion forming device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20171030 |