CN102854805B - Proportional speed regulation system for pneumatic motor - Google Patents
Proportional speed regulation system for pneumatic motor Download PDFInfo
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- CN102854805B CN102854805B CN201210260420.4A CN201210260420A CN102854805B CN 102854805 B CN102854805 B CN 102854805B CN 201210260420 A CN201210260420 A CN 201210260420A CN 102854805 B CN102854805 B CN 102854805B
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Abstract
The invention discloses a proportional speed regulation system for a pneumatic motor. An air source is connected with a gate valve; the gate valve is simultaneously connected with an air control two-station two-way valve, an air control two-station five-way valve, a first two-station three-way solenoid valve and a second two-station three-way solenoid valve; the air control two-station two-way valve is connected with a first pneumatic proportioning valve; the first pneumatic proportioning valve is connected with a first shuttle valve; the air control two-station five-way valve is simultaneously connected with a cylinder and a second shuttle valve; the second shuttle valve is simultaneously connected with the air control two-station two-way valve, the first two-station three-way solenoid valve and the second two-station three-way solenoid valve; the second two-station three-way solenoid valve is connected with a two-station two-way solenoid valve; the two-station two-way solenoid valve is connected with a second pneumatic proportioning solenoid valve; the second pneumatic proportioning solenoid valve is connected with a third shuttle valve; the first shuttle valve and the third shuttle valve are connected with the pneumatic motor; a rotation speed sensor is arranged on a rotating shaft of the pneumatic motor and is connected with a controller; and the controller is respectively connected with the first pneumatic proportioning solenoid valve and the second pneumatic proportioning solenoid valve. The proportional speed regulation system is high in precision and ideal in control effect.
Description
Technical field
The present invention relates to air motor speed regulating control technology, especially a kind of air motor governing system.
Background technology
The actuating medium of air motor is pressurized air, and the variation of pressure can exert an influence to its operating characteristic.In the time that input air pressure is constant, its rotating speed, torque, power all change with outer load variations, and this software feature is the maximum feature of air motor, are difficult to by regulating the hydraulicdriven modes of speed regulation such as input flow rate or variable to realize the accurate speed governing of air motor.At present, many engineer equipments adopt air motor to drive, and be all to adopt mechanical system to carry out speed governing to the driven object of air motor, instead of gas motor is carried out to speed governing.
Summary of the invention
In order to overcome the deficiency that the precision that existing air motor speed adjusting technique exists is low, control weak effect, the invention provides the proportionality velocity modulation system that a kind of precision is high, control air motor satisfactory for result.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of proportionality velocity modulation system of air motor, comprise source of the gas, described source of the gas is connected with gate valve, described gate valve while and gas control 2/2-way valve, two five-way valves of gas control, the first two-bit triplet solenoid valve is connected with the second two-bit triplet solenoid valve, described gas control 2/2-way valve is connected with the first pneumatic proportional valve, described the first pneumatic proportional valve is connected with the first shuttle valve, two five-way valves of described gas control simultaneously and cylinder, the second shuttle valve connects, described the second shuttle valve while and described gas control 2/2-way valve, described the first two-bit triplet solenoid valve is connected with described the second two-bit triplet solenoid valve, described the second two-bit triplet solenoid valve is connected with 2/2-way solenoid valve, described 2/2-way solenoid valve is connected with the second pneumatic proportional solenoid valve, described the second pneumatic proportional solenoid valve is connected with the 3rd shuttle valve, described the first shuttle valve is connected with air motor respectively with the 3rd shuttle valve, in the rotating shaft of described air motor, speed probe is installed, described speed probe is connected with controller, described controller respectively with described the first pneumatic proportional solenoid valve, the second pneumatic proportional solenoid valve electrical connection.
" connection " of the present invention refers to gas circuit annexation, and for example " described source of the gas is connected with gate valve " refers to gas circuit, set out tracheae on source of the gas, on described escape pipe, gate valve is set.
Beneficial effect of the present invention is mainly manifested in: realized the proportionality velocity modulation of gas motor, precision is high, it is satisfactory for result to control.
Brief description of the drawings
Fig. 1 is the schematic diagram of the proportionality velocity modulation system of air motor.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1, a kind of proportionality velocity modulation system of air motor, comprise source of the gas 1, described source of the gas 1 is connected with gate valve V1, described gate valve V1 while and gas control 2/2-way valve V5, two five-way valve V2 of gas control, the first two-bit triplet solenoid valve V3 is connected with the second two-bit triplet solenoid valve V4, described gas control 2/2-way valve V5 is connected with the first pneumatic proportional valve V6, described the first pneumatic proportional valve V6 is connected with the first shuttle valve V7, two five-way valve V2 of described gas control simultaneously with cylinder C1, the second shuttle valve V11 connects, described the second shuttle valve V11 while and described gas control 2/2-way valve V5, described the first two-bit triplet solenoid valve V3 is connected with described the second two-bit triplet solenoid valve V4, described the second two-bit triplet solenoid valve V4 is connected with 2/2-way solenoid valve V10, described 2/2-way solenoid valve V10 is connected with the second pneumatic proportional solenoid valve V9, described the second pneumatic proportional solenoid valve V9 is connected with the 3rd shuttle valve V8, described the first shuttle valve V7 is connected with air motor MD respectively with the 3rd shuttle valve V8, speed probe 2 is installed in the rotating shaft of described air motor MD, described speed probe 2 is connected with controller 3, described controller 3 respectively with described the first pneumatic proportional solenoid valve V6, the second pneumatic proportional solenoid valve V9 electrical connection.
After gate valve V1 opens, pressurized air stretches out cylinder C1 piston rod through two five-way pneumatic valve V2 of gas control and realizes brake.When the first two-bit triplet solenoid valve V3 obtains when electric, the first two-bit triplet solenoid valve V3 left position work, control gas and make two five-way pneumatic valve V2 commutations of gas control through the second shuttle valve V11, cylinder C1 piston rod is retracted, brake discharges, and meanwhile, controls gas and makes gas control 2/2-way valve V5 conducting, pressurized air drives gas motor MD bringing onto load forward rotation through the first pneumatic proportional pressure-reducing valve V6, the first shuttle valve V7, and gas is discharged through the 3rd shuttle valve V8.When speed governing, along with the first pneumatic proportional pressure-reducing valve V6 decompression pressure increases, gas motor MD output speed declines.
When the second two-bit triplet solenoid valve V4 obtains when electric, the second two-bit triplet solenoid valve V4 left position work, controls gas and makes two five-way pneumatic valve V2 commutations of gas control through the second shuttle valve V11, and cylinder C1 piston rod is retracted, and brake discharges.Meanwhile, 2/2-way solenoid valve V10 obtains electric and conducting, and pressurized air drives gas motor MD bringing onto load to rotate backward through the second pneumatic proportional pressure-reducing valve V9, the 3rd shuttle valve V8, and gas is discharged through the first shuttle valve V7.When speed governing, along with the second pneumatic proportional pressure-reducing valve V9 decompression pressure increases, gas motor MD output speed declines.
If the first two-bit triplet solenoid valve V3, the second two-bit triplet solenoid valve V4 simultaneously electric, the second shuttle valve V11 is in meta, two five-way pneumatic valve V2 of gas control are at initial position, cylinder C1 piston rod stretches out realizes brake, gas motor does not turn.
In the time that dragging gas revolution, load torque also can realize the speed governing of gas motor.For example, if load torque drags gas motor MD forward rotation, gas motor MD makes the first shuttle valve V7 air-breathing from the 3rd shuttle valve V8 exhaust, if do not control, load drags gas motor and turns faster and faster.After gate valve V1 opens, when the second two-bit triplet solenoid valve V4 obtains when electric, the second two-bit triplet solenoid valve V4 left position work, controls gas and makes two five-way pneumatic valve V2 commutations of gas control through the second shuttle valve V11, and the brake of retracting of cylinder C1 piston rod discharges.At this moment, 2/2-way solenoid valve V10 obtains electric and conducting, and pressurized air enters gas motor MD through the second pneumatic proportional pressure-reducing valve V9, the 3rd shuttle valve V8, the second gas ratio reduction valve V9 discharges, for gas motor provides back pressure, thereby make gas motor obtain drag torque, gas motor rotary speed declines.When speed governing, along with the second pneumatic proportional pressure-reducing valve V9 top hole pressure increases, gas motor MD output speed diminishes, but still is forward rotation.
Owing on gas motor MD output shaft, speed probe 2 being installed, can be by output speed signal feedback to controller, compare with input signal, thereby control first pneumatic proportional pressure-reducing valve V6(the second pneumatic proportional pressure-reducing valve V9), realize the closed-loop control of gas motor output speed.
Claims (1)
1. the proportionality velocity modulation system of an air motor, it is characterized in that: comprise source of the gas, described source of the gas is connected with gate valve, described gate valve while and gas control 2/2-way valve, two five-way valves of gas control, the first two-bit triplet solenoid valve is connected with the second two-bit triplet solenoid valve, described gas control 2/2-way valve is connected with the first pneumatic proportional valve, described the first pneumatic proportional valve is connected with the first shuttle valve, two five-way valves of described gas control simultaneously and cylinder, the second shuttle valve connects, described the second shuttle valve while and described gas control 2/2-way valve, described the first two-bit triplet solenoid valve is connected with described the second two-bit triplet solenoid valve, described the second two-bit triplet solenoid valve is connected with 2/2-way solenoid valve, described 2/2-way solenoid valve is connected with the second pneumatic proportional solenoid valve, described the second pneumatic proportional solenoid valve is connected with the 3rd shuttle valve, described the second shuttle valve is connected with air motor respectively with the 3rd shuttle valve, in the rotating shaft of described air motor, speed probe is installed, described speed probe is connected with controller, described controller respectively with described the first pneumatic proportional solenoid valve, the second pneumatic proportional solenoid valve electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210260420.4A CN102854805B (en) | 2012-07-25 | 2012-07-25 | Proportional speed regulation system for pneumatic motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210260420.4A CN102854805B (en) | 2012-07-25 | 2012-07-25 | Proportional speed regulation system for pneumatic motor |
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| Publication Number | Publication Date |
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| CN102854805A CN102854805A (en) | 2013-01-02 |
| CN102854805B true CN102854805B (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210260420.4A Active CN102854805B (en) | 2012-07-25 | 2012-07-25 | Proportional speed regulation system for pneumatic motor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111456975A (en) * | 2020-05-22 | 2020-07-28 | 上海通周机械设备工程有限公司 | Pneumatic motor device for explosion-proof area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0628730A1 (en) * | 1993-05-05 | 1994-12-14 | MANNESMANN REXROTH GmbH | Hydraulic system, particularly for a power brake |
| WO1998015741A1 (en) * | 1996-10-09 | 1998-04-16 | Fisher Controls International, Inc. | Control valve positioners having improved operating characteristics |
| CN1821588A (en) * | 2006-01-24 | 2006-08-23 | 中海油田服务股份有限公司 | Sleigh mounted electrohydraulic ratio regulating system |
| CN101216052A (en) * | 2008-01-09 | 2008-07-09 | 浙江大学 | Rotating speed variable driving shield cutterhead energy-saving hydraulic control system |
| CN202707650U (en) * | 2012-07-25 | 2013-01-30 | 浙江工业大学 | Proportional speed regulating system of pneumatic motor |
-
2012
- 2012-07-25 CN CN201210260420.4A patent/CN102854805B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0628730A1 (en) * | 1993-05-05 | 1994-12-14 | MANNESMANN REXROTH GmbH | Hydraulic system, particularly for a power brake |
| WO1998015741A1 (en) * | 1996-10-09 | 1998-04-16 | Fisher Controls International, Inc. | Control valve positioners having improved operating characteristics |
| CN1821588A (en) * | 2006-01-24 | 2006-08-23 | 中海油田服务股份有限公司 | Sleigh mounted electrohydraulic ratio regulating system |
| CN101216052A (en) * | 2008-01-09 | 2008-07-09 | 浙江大学 | Rotating speed variable driving shield cutterhead energy-saving hydraulic control system |
| CN202707650U (en) * | 2012-07-25 | 2013-01-30 | 浙江工业大学 | Proportional speed regulating system of pneumatic motor |
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| CN102854805A (en) | 2013-01-02 |
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Effective date of registration: 20191224 Address after: 314400 No.2, Fengshou Avenue, Haining warp knitting industrial park, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Haining Warp Knitting Industrial Park Development Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20191224 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310014 City Zhaohui District Six Patentee before: Zhejiang University of Technology |