CN101943068B - Diesel engine speed adjustor of mobile screw compressor - Google Patents
Diesel engine speed adjustor of mobile screw compressor Download PDFInfo
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- CN101943068B CN101943068B CN 201010276865 CN201010276865A CN101943068B CN 101943068 B CN101943068 B CN 101943068B CN 201010276865 CN201010276865 CN 201010276865 CN 201010276865 A CN201010276865 A CN 201010276865A CN 101943068 B CN101943068 B CN 101943068B
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Abstract
The invention provides a diesel engine speed adjustor of a mobile screw compressor. According to the diesel engine speed adjustor, the service life of a product is long, the adjusting mode is easy to realize accurate control of the rotational speed of the diesel engine, and the stability of the rotational speed is strong. The diesel engine speed adjustor comprises a cylinder body, a spring, a piston and a piston rod, wherein the piston is arranged in the cylinder body, and the top of the piston rod is connected with an accelerator handle of a diesel engine. The diesel engine speed adjustor is characterized in that: the cylinder body comprises a front cylinder body and a rear cylinder body; the piston comprises a front piston and a rear piston; the front piston and the rear piston are arranged in a cavity formed by connecting the front cylinder body and the rear cylinder body; a spring is arranged in a working cavity between the front piston and the rear piston; the bottom of the piston rod is fastened on the front piston, and the top of the piston rod is exposed out of a piston rod mounting hole of the front cylinder body; and the front side wall of the front cylinder body is provided with a front air inlet hole, the rear side wall of the rear cylinder body is provided with a rear air inlet hole, the rear air inlet hole is communicated with an oil-gas separator, and the front rear air inlet hole is communicated with the outlet of a voltage stabilization adjustor.
Description
Technical field
The present invention relates to the diesel engine oil pipelines control structure of movable screw compressor, be specially the diesel engine speed regulator of movable screw compressor.
Background technique
The diesel engine speed regulator of existing movable screw compressor, its structure is seen Fig. 1, it comprises upper valve body 1, diaphragm 2, valve core case 3, spring seat 4, valve rod 5, spring 6, adjusts circle 7, lower valve body 8, lining 9, the top of valve rod 5 connects the throttle control handle (not shown in FIG., as to belong to existing mature technology) of diesel engine, during its work: when unit loads, pass into pressurized air at the A mouth and shift diesel engine throttle onto rated speed, during unloading with A mouth air emptying, valve rod 5 returns, Idling Process for Diesel Engine.This speed regulator mainly seals and slides by diaphragm 2, and because speed regulator acts frequently, diaphragm 2 easily damages, and product is short working life; Next only has the length of coming regulating valve stem 5 to stretch out by the suction pressure of controlling the A mouth, thereby diesel engine is carried out electrodeless adjusting, and this regulative mode is more difficult, and it is excessive that small pressure surge just easily causes diesel engine speed to change, the poor stability of rotating speed.
Summary of the invention
For the problems referred to above, the invention provides the diesel engine speed regulator of movable screw compressor, it makes the long service life of product, and easy the by force stable of the accurate control to diesel engine speed, rotating speed of realizing of regulative mode.
the diesel engine speed regulator of movable screw compressor, its technological scheme is such: it comprises cylinder body, spring, piston, piston rod, described piston is installed in described cylinder body, the top of described piston rod connects the throttle control handle of diesel engine, it is characterized in that: described cylinder body comprises front-bank rotor housing, rear-bank rotor housing, described piston comprises secondary piston, back piston, described secondary piston, back piston is installed on described front-bank rotor housing, rear-bank rotor housing connects in formed cavity, described secondary piston, active chamber in the middle of back piston is equipped with spring, the bottom of described piston rod is fastening is loaded on described secondary piston, the top of described piston rod exposes to the piston rod mounting hole of described front-bank rotor housing, the anterior sidewall of described front-bank rotor housing has front inlet hole, the rear sidewall of described rear-bank rotor housing has rear inlet hole, described rear inlet hole is communicated with deaerator, described front inlet hole is communicated with the outlet of voltage regulation adjustor.
It is further characterized in that: the rear portion of described back piston and the posterior medial of described rear-bank rotor housing form rear air-inlet cavity, described rear air-inlet cavity is communicated with deaerator by described rear inlet hole, air-inlet cavity before anterior inboard formation of the front portion of described secondary piston and described front-bank rotor housing, described front air-inlet cavity are communicated with the outlet of voltage regulation adjustor by described front inlet hole;
Described secondary piston has gas port, and described gas port is communicated with described front air-inlet cavity and active chamber, and the aperture of described gas port is 1.2 mm～1.8mm, and the sidewall rear portion of described front-bank rotor housing has drain;
The internal diameter of described front-bank rotor housing is greater than rear-bank rotor housing, between the installation surface of contact of described front-bank rotor housing and described rear-bank rotor housing, positioning ring is housed, described positioning ring is anchored on described front-bank rotor housing, the formed inner assemblage gap of rear-bank rotor housing, and the other end of described positioning ring is towards the rear portion of described secondary piston end face;
The surface of contact of described back piston and described rear-bank rotor housing is equipped with O type circle, piston ring, and the surface of contact of described secondary piston and described front-bank rotor housing is equipped with lining ring, and O type circle, piston ring are installed between the surface of contact of described secondary piston and described lining ring;
The bottom of described piston rod is loaded on the piston rod fixed hole of described secondary piston by bolton, the part that described piston rod is positioned at described front-bank rotor housing is set with Returnning spring, and the two ends of described Returnning spring are mounted on respectively the top interior edge face of described secondary piston, described piston mounting hole;
Described piston rod is connected by gland, seal ring, seal with buss with the top of described piston mounting hole.
After adopting structure of the present invention, gas in deaerator, enter from rear inlet hole and act on back piston, pushing piston bar forward, the pressed gas of voltage regulation adjustor outlet enters by front inlet hole and acts on secondary piston, backward the pushing piston bar, under the both direction active force, the mobile diesel engine speed of controlling of piston rod, its regulative mode is easily realized the accurate control to diesel engine speed, the stability of rotating speed is strong; This speed regulator has replaced the motion of diaphragm, the working life of having improved product by the motion of piston in addition.
Description of drawings
Fig. 1 is the diesel engine speed regulator plan view structural representation of prior art;
Fig. 2 is plan view structural representation of the present invention.
Embodiment
see Fig. 2, it comprises cylinder body, spring 6, piston, piston rod 7, piston is installed in cylinder body, the throttle control handle of the top connection diesel engine of piston rod 7 is (not shown in FIG., belong to existing mature technology), cylinder body comprises front-bank rotor housing 1, rear-bank rotor housing 2, piston comprises secondary piston 3, back piston 4, secondary piston 3, back piston 4 is installed on front-bank rotor housing 1, rear-bank rotor housing 2 connects in formed cavity, secondary piston 3, active chamber 5 in the middle of back piston 4 is equipped with spring 6, the fastening secondary piston 3 that is loaded in the bottom of piston rod 7, the top of piston rod 7 exposes to the piston rod mounting hole 8 of front-bank rotor housing 1, the anterior sidewall of front-bank rotor housing 1 has front inlet hole 9, the rear sidewall of rear-bank rotor housing 2 has rear inlet hole 10, rear inlet hole 10 is communicated with deaerator 11, front inlet hole 9 is communicated with the outlet of voltage regulation adjustor 12.
The posterior medial of the rear portion of back piston 4 and rear-bank rotor housing 2 forms rear air-inlet cavity 13, rear air-inlet cavity 13 is communicated with deaerator 11 by rear inlet hole 10, air-inlet cavity 14 before anterior inboard formation of the front portion of secondary piston 3 and front-bank rotor housing 1, front air-inlet cavity 14 are communicated with the outlet of voltage regulation adjustor 12 by front inlet hole 9; Secondary piston 3 has gas port 15, air-inlet cavitys 14 and active chambers 5 before gas port 15 is communicated with, and the aperture of gas port 15 is 1.2 mm～1.8mm, the sidewall rear portion of front-bank rotor housing 1 has drain 16; The internal diameter of front-bank rotor housing 1 is greater than the internal diameter of rear-bank rotor housing 2, between the installation surface of contact of front-bank rotor housing 1 and rear-bank rotor housing 2, positioning ring 17 is housed, positioning ring 17 is anchored on front-bank rotor housing 1, the formed inner assemblage gap of rear-bank rotor housing 2, and the other end of positioning ring 17 is towards the rear portion of secondary piston 3 end face; Back piston 4 is equipped with O type circle 18, piston ring 19 with the surface of contact of rear-bank rotor housing 2, and secondary piston 3 is equipped with lining ring 26 with the surface of contact of front-bank rotor housing 1, and O type circle 18, piston ring 19 are installed between the surface of contact of secondary piston 3 and lining ring 26; The bottom of piston rod 7 is by the fastening piston rod fixed hole 21 that is loaded on secondary piston 3 of bolt 20, and the part that piston rod 7 is positioned at front-bank rotor housing is set with Returnning spring 22, and the two ends of Returnning spring 22 are mounted on respectively the top interior edge face of secondary piston 3, piston mounting hole 8; Piston rod 7 is tightly connected by gland 23, seal ring 24, lining 25 with the top of piston mounting hole 8.
Its working principle is as follows:
During compressor loads, the gas in deaerator 11 leads to rear inlet hole 10, acts on the rear portion of back piston 4, makes spring 6 compressions, promote secondary piston 3 forward, and then pushing piston bar 7 forward, and diesel engine enters rated speed; After compressor operating pressure surpasses the working pressure of voltage regulation adjustor 12, the pressed gas of voltage regulation adjustor 12 outlets leads to front inlet hole 9, act on the front portion of secondary piston 3, promote secondary piston 3 backward, drive piston rod 7 backward, make diesel engine speed reduce, until the other end of the rear portion of secondary piston 3 contact positioning ring 17, diesel engine enters idling; During compressor unloading, with gas emptying, back piston 4, spring 6 reset rear air-inlet cavity 13 by rear inlet hole 10; The gas of front air-inlet cavity 14 is by gas port 15, and with pressure-emptying, piston rod 7 resets from active chamber 5.
Claims (7)
1. the diesel engine speed regulator of movable screw compressor, it comprises cylinder body, spring, piston, piston rod, described piston is installed in described cylinder body, the top of described piston rod connects the throttle control handle of diesel engine, it is characterized in that: described cylinder body comprises front-bank rotor housing, rear-bank rotor housing, described piston comprises secondary piston, back piston, described secondary piston, back piston is installed on described front-bank rotor housing, rear-bank rotor housing connects in formed cavity, described secondary piston, active chamber in the middle of back piston is equipped with spring, the bottom of described piston rod is fastening is loaded on described secondary piston, the top of described piston rod exposes to the piston rod mounting hole of described front-bank rotor housing, the anterior sidewall of described front-bank rotor housing has front inlet hole, the rear sidewall of described rear-bank rotor housing has rear inlet hole, described rear inlet hole is communicated with deaerator, described front inlet hole is communicated with the outlet of voltage regulation adjustor.
2. the diesel engine speed regulator of movable screw compressor according to claim 1, it is characterized in that: the rear portion of described back piston and the posterior medial of described rear-bank rotor housing form rear air-inlet cavity, described rear air-inlet cavity is communicated with deaerator by described rear inlet hole, air-inlet cavity before anterior inboard formation of the front portion of described secondary piston and described front-bank rotor housing, described front air-inlet cavity are communicated with the outlet of voltage regulation adjustor by described front inlet hole.
3. the diesel engine speed regulator of movable screw compressor according to claim 1 and 2, it is characterized in that: described secondary piston has gas port, described gas port is communicated with described front air-inlet cavity and active chamber, the aperture of described gas port is 1.2 mm～1.8mm, and the sidewall rear portion of described front-bank rotor housing has drain.
4. the diesel engine speed regulator of movable screw compressor according to claim 1, it is characterized in that: the internal diameter of described front-bank rotor housing is greater than rear-bank rotor housing, between the installation surface of contact of described front-bank rotor housing and described rear-bank rotor housing, positioning ring is housed, described positioning ring is anchored on described front-bank rotor housing, the formed inner assemblage gap of rear-bank rotor housing, and the other end of described positioning ring is towards the rear portion of described secondary piston end face.
5. the diesel engine speed regulator of movable screw compressor according to claim 1, it is characterized in that: the surface of contact of described back piston and described rear-bank rotor housing is equipped with O type circle, piston ring, the surface of contact of described secondary piston and described front-bank rotor housing is equipped with lining ring, and O type circle, piston ring are installed between the surface of contact of described secondary piston and described lining ring.
6. the diesel engine speed regulator of movable screw compressor according to claim 1, it is characterized in that: the bottom of described piston rod is loaded on the piston rod fixed hole of described secondary piston by bolton, the part that described piston rod is positioned at described front-bank rotor housing is set with Returnning spring, and the two ends of described Returnning spring are mounted on respectively the top interior edge face of described secondary piston, described piston mounting hole.
7. the diesel engine speed regulator of movable screw compressor according to claim 6, it is characterized in that: described piston rod is connected by gland, seal ring, seal with buss with the top of described piston mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276865 CN101943068B (en) | 2010-09-09 | 2010-09-09 | Diesel engine speed adjustor of mobile screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276865 CN101943068B (en) | 2010-09-09 | 2010-09-09 | Diesel engine speed adjustor of mobile screw compressor |
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| Publication Number | Publication Date |
|---|---|
| CN101943068A CN101943068A (en) | 2011-01-12 |
| CN101943068B true CN101943068B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010276865 Active CN101943068B (en) | 2010-09-09 | 2010-09-09 | Diesel engine speed adjustor of mobile screw compressor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968951A (en) * | 2017-05-31 | 2017-07-21 | 中国科学院合肥物质科学研究院 | A kind of automatic speed governing device applied in air compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085533A (en) * | 1980-09-20 | 1982-04-28 | Bosch Gmbh Robert | Fuel injection pump |
| CN2236020Y (en) * | 1995-06-16 | 1996-09-25 | 崔勋 | Accelerating regulation-control device for IC engine of motor vehicle |
| CN201794670U (en) * | 2010-09-09 | 2011-04-13 | 无锡压缩机股份有限公司 | Diesel engine speed governor of movable screw rod compressor |
-
2010
- 2010-09-09 CN CN 201010276865 patent/CN101943068B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085533A (en) * | 1980-09-20 | 1982-04-28 | Bosch Gmbh Robert | Fuel injection pump |
| CN2236020Y (en) * | 1995-06-16 | 1996-09-25 | 崔勋 | Accelerating regulation-control device for IC engine of motor vehicle |
| CN201794670U (en) * | 2010-09-09 | 2011-04-13 | 无锡压缩机股份有限公司 | Diesel engine speed governor of movable screw rod compressor |
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| Publication number | Publication date |
|---|---|
| CN101943068A (en) | 2011-01-12 |
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Effective date of registration: 20181107 Address after: 214000 No. 199, Hong Xie Road, hung Shan Street, new Wu District, Wuxi, Jiangsu Patentee after: WUXI XIYA COMPRESSOR CO.,LTD. Address before: 214145 Jiangsu Wuxi New District New Area Photoelectric Industrial Park 1 Patentee before: WUXI COMPRESSOR Co.,Ltd. |
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Application publication date: 20110112 Assignee: Jiangsu Reinsurance Finance Leasing Co.,Ltd. Assignor: WUXI XIYA COMPRESSOR CO.,LTD. Contract record no.: X2023980035052 Denomination of invention: Diesel engine governor for mobile screw compressors Granted publication date: 20130508 License type: Exclusive License Record date: 20230425 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Diesel engine governor for mobile screw compressors Effective date of registration: 20230427 Granted publication date: 20130508 Pledgee: Jiangsu Reinsurance Finance Leasing Co.,Ltd. Pledgor: WUXI XIYA COMPRESSOR CO.,LTD. Registration number: Y2023980039370 |