CN105173790A - Vertical spin steady-speed material conveying system and method for ship unloader - Google Patents
Vertical spin steady-speed material conveying system and method for ship unloader Download PDFInfo
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- CN105173790A CN105173790A CN201510684053.4A CN201510684053A CN105173790A CN 105173790 A CN105173790 A CN 105173790A CN 201510684053 A CN201510684053 A CN 201510684053A CN 105173790 A CN105173790 A CN 105173790A
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Abstract
The invention discloses a vertical spin steady-speed material conveying system and method for a ship unloader. The vertical spin steady-speed material conveying system comprises a feeder, a screw conveyer, a hydraulic motor, a hydraulic oil pump, a screw conveyer rotating speed sensor, a transportation controller and a frequency converter, wherein the screw conveyer rotating speed sensor is used for detecting the rotating speed of the screw conveyer; the transportation controller is used for receiving a detected rotating speed signal, comparing the detected rotating speed with a target rotating speed, and outputting a control signal; the frequency converter is used for receiving the control signal, and controlling the rotating speed of a motor of the hydraulic oil pump to be within an allowable deviation range of the target rotating speed. According to the vertical spin steady-speed material conveying system and the method for the ship unloader, decline of rotating speed caused by internal leakage can be avoided, machine blocking caused by increase of torque and load is prevented, and the yield is guaranteed.
Description
Technical field
The invention belongs to ship unloaders conveying technology, be specifically related to a kind of ship unloaders vertical spin speed stabilizing conveying system and method.
Background technology
There is following shortcoming in existing screw ship unloader vertical spin conveying system:
1, for adopting a screw machine for electrical motor Direct driver, structure bulky, easy motor damage under overload condition, structure is damaged;
2, another kind of in order to adopt hydraulic-driven screw machine, structure is light, good operation performance, but after eating load, because internal leakage increases, rotating speed declines, and causes production declining and torque load to increase and suppresses machine.
In addition, external conveying system generally uses hydraulic proportional pump technology, and because imported hydraulic proportioning pump is very expensive, and domestic proportioning pump still can not reach operating needs, simultaneously because need complementary pump, therefore result in the increase of cost.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of ship unloaders vertical spin speed stabilizing conveying system and method, can avoid causing rotating speed to decline because of internal leakage, prevents torque load increase and suppresses machine, ensure that output.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
On the one hand, a kind of ship unloaders vertical spin speed stabilizing conveying system, comprises feeder, the conveyor screw be connected with feeder, HM Hydraulic Motor that conveyor screw is connected, the hydraulic oil pump that is connected with HM Hydraulic Motor, also comprises:
Screw machine tachogen, in order to detect the rotating speed of conveyor screw;
Delivery controller, is connected with screw machine tachogen, receives the tach signal detected, and compares with rotating speed of target, exports control signal;
Frequency converter, is connected with delivery controller, reception control signal, and the motor speed of hydraulic control oil pump remains within the scope of the permissible variation of rotating speed of target.
Also comprising HM Hydraulic Motor pressure sensor, be connected with delivery controller, for detecting the oil pressure of HM Hydraulic Motor, and being delivered to delivery controller, the load as screw machine judges, provides different rotating speed of target.
Also comprise feeding governor, be connected with delivery controller, receive the control signal that delivery controller exports, speed governing is carried out to feeder.
On the other hand, a kind of ship unloaders vertical spin speed stabilizing material delivery method, comprises the following steps:
A. the rotating speed of screw machine tachogen to conveyor screw is adopted to detect;
B. received the tach signal detected by delivery controller, and compare with rotating speed of target, export control signal;
C. by frequency converter reception control signal, the motor speed of hydraulic control oil pump remains within the scope of the permissible variation of rotating speed of target.
Before step a, also comprise step: adopt HM Hydraulic Motor pressure sensor, detect the oil pressure of HM Hydraulic Motor, and be delivered to delivery controller, the load as screw machine judges, provides different rotating speed of target.
When being judged as that screw machine is unloaded, sent by delivery controller and control signal to frequency converter, hydraulic control pump carries out slow speed of revolution operation.
After being judged as load, carry out step a-c.
Also comprise steps d: by feeding governor, receive the control signal that delivery controller exports, speed governing is carried out to feeder.
Described feeder speed governing is specially: the pressure signal recorded according to HM Hydraulic Motor pressure sensor knows the load of conveyor screw, and compared by the standard termination value range of delivery controller and setting, when the load of conveyor screw is in this load range value, controls feeder and carry out full speed running; When exceeding this load range value, by the rotating speed of feeding governor adjustment feeder, to carry out active accommodation inlet amount, conveyor screw load is maintained in standard termination value range.
Adopt ship unloaders vertical spin speed stabilizing conveying system of the present invention and method, tool has the following advantages:
1, based on frequency control, speed adjustable range is large, and compensation performance is good.
2, cost is lower.
3, the feature of the durable and light structure of fluid power system is kept.
4, feeding is stablized, and improves average output.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of speed stabilizing conveying system of the present invention.
Detailed description of the invention
Ship unloaders vertical spin speed stabilizing conveying system of the present invention as shown in Figure 1, it mainly comprises feeder, the conveyor screw be connected with feeder, conveyor screw are connected HM Hydraulic Motor, the hydraulic oil pump be connected with HM Hydraulic Motor and hydraulic reservoir.Unlike the prior art, this speed stabilizing conveying system also comprises screw machine tachogen, delivery controller (can adopt PLC) and frequency converter, and screw machine tachogen is in order to detect the rotating speed of conveyor screw and to export; Delivery controller is connected with screw machine tachogen, receives the tach signal detected, and compares with rotating speed of target, if comparative result exceedes admissible deviation range, then export control signal; Frequency converter is connected with delivery controller, reception control signal, and the motor speed of hydraulic control oil pump remains within the scope of the permissible variation of rotating speed of target, thus ensures that rotating speed is steady.
Due under different screw machine loads, rotating speed of target is different.Therefore, this speed stabilizing conveying system also comprises HM Hydraulic Motor pressure sensor, is connected with delivery controller, for detecting the oil pressure of HM Hydraulic Motor, and the fuel injection pressure signal of acquisition is delivered to delivery controller, the load as screw machine judges, provides different rotating speed of target.
In addition, this speed stabilizing conveying system also comprises feeding governor, is connected with delivery controller, receive the control signal that delivery controller exports, speed governing is carried out to feeder, its objective is and adjust according to spiral load the doses entering conveyor screw, reach load steady.Specifically can set a standard termination value range, the pressure signal recorded according to HM Hydraulic Motor pressure sensor knows the load of conveyor screw, when the load of conveyor screw is in this load range value, controls feeder and carries out full speed running; When exceeding this load range value, often mean that charging is too much, then by adjustment feeder rotating speed, to carry out active accommodation inlet amount, thus conveyor screw load is maintained in standard termination value range.
The speed stabilizing material delivery method of ship unloaders vertical spin speed stabilizing conveying system of the present invention, comprises the following steps:
A. the rotating speed of screw machine tachogen to conveyor screw is adopted to detect;
B. received the tach signal detected by delivery controller, and compare with rotating speed of target, export control signal;
C. by frequency converter reception control signal, the motor speed of hydraulic control oil pump remains within the scope of the permissible variation of rotating speed of target.
Before step a, also comprise step: adopt HM Hydraulic Motor pressure sensor, detect the oil pressure of HM Hydraulic Motor, and be delivered to delivery controller, the load as screw machine judges, provides different rotating speed of target.
When being judged as that screw machine is unloaded, because hydraulic pressure internal leakage is little, sent control signal to frequency converter by delivery controller, oneself hydraulic control pump carries out lower rotative speed and runs.
After being judged as load, carry out step a-c.
Speed stabilizing material delivery method of the present invention also comprises steps d: by feeding governor, receives the control signal that delivery controller exports, carries out speed governing to feeder.Be specially: the pressure signal recorded according to HM Hydraulic Motor pressure sensor knows the load of conveyor screw, and compared by the standard termination value range of delivery controller and setting, when the load of conveyor screw is in this load range value, controls feeder and carry out full speed running; When exceeding this load range value, by the rotating speed of feeding governor adjustment feeder, to carry out active accommodation inlet amount, conveyor screw load is maintained in standard termination value range.
In sum, adopt ship unloaders vertical spin speed stabilizing conveying system of the present invention and method, simple and convenient, with low cost, without the need to proportioning pump and complementary pump, speed stabilizing conveying can be realized by variable frequency control, thus avoid after load, because internal leakage increases, and rotating speed decline occurs, production declining and torque load increase suppresses the defects such as machine.
But, those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (9)
1. a ship unloaders vertical spin speed stabilizing conveying system, comprises feeder, the conveyor screw be connected with feeder, HM Hydraulic Motor that conveyor screw is connected, the hydraulic oil pump that is connected with HM Hydraulic Motor, it is characterized in that, also comprise:
Screw machine tachogen, in order to detect the rotating speed of conveyor screw;
Delivery controller, is connected with screw machine tachogen, receives the tach signal detected, and compares with rotating speed of target, exports control signal;
Frequency converter, is connected with delivery controller, reception control signal, and the motor speed of hydraulic control oil pump remains within the scope of the permissible variation of rotating speed of target.
2. ship unloaders vertical spin speed stabilizing conveying system according to claim 1, it is characterized in that: also comprise HM Hydraulic Motor pressure sensor, be connected with delivery controller, for detecting the oil pressure of HM Hydraulic Motor, and be delivered to delivery controller, load as screw machine judges, provides different rotating speed of target.
3. ship unloaders vertical spin speed stabilizing conveying system according to claim 1, is characterized in that: also comprise feeding governor, be connected with delivery controller, receives the control signal that delivery controller exports, carries out speed governing to feeder.
4. a ship unloaders vertical spin speed stabilizing material delivery method, is characterized in that, comprise the following steps:
A. the rotating speed of screw machine tachogen to conveyor screw is adopted to detect;
B. received the tach signal detected by delivery controller, and compare with rotating speed of target, export control signal;
C. by frequency converter reception control signal, the motor speed of hydraulic control oil pump remains within the scope of the permissible variation of rotating speed of target.
5. ship unloaders vertical spin speed stabilizing material delivery method according to claim 4, it is characterized in that: before step a, also comprise step: adopt HM Hydraulic Motor pressure sensor, detect the oil pressure of HM Hydraulic Motor, and be delivered to delivery controller, load as screw machine judges, provides different rotating speed of target.
6. ship unloaders vertical spin speed stabilizing material delivery method according to claim 5, is characterized in that: when being judged as that screw machine is unloaded, sent by delivery controller and control signal to frequency converter, hydraulic control pump carries out slow speed of revolution operation.
7. ship unloaders vertical spin speed stabilizing material delivery method according to claim 5, is characterized in that: after being judged as load, carries out step a-c.
8. ship unloaders vertical spin speed stabilizing material delivery method according to claim 4, is characterized in that: also comprise steps d: by feeding governor, receives the control signal that delivery controller exports, carries out speed governing to feeder.
9. ship unloaders vertical spin speed stabilizing material delivery method according to claim 8, it is characterized in that: described feeder speed governing is specially: the pressure signal recorded according to HM Hydraulic Motor pressure sensor knows the load of conveyor screw, and compared by the standard termination value range of delivery controller and setting, when the load of conveyor screw is in this load range value, controls feeder and carry out full speed running; When exceeding this load range value, by the rotating speed of feeding governor adjustment feeder, to carry out active accommodation inlet amount, conveyor screw load is maintained in standard termination value range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510684053.4A CN105173790B (en) | 2015-10-20 | 2015-10-20 | Ship unloaders vertical spin speed stabilizing conveying system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510684053.4A CN105173790B (en) | 2015-10-20 | 2015-10-20 | Ship unloaders vertical spin speed stabilizing conveying system and method |
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| CN105173790A true CN105173790A (en) | 2015-12-23 |
| CN105173790B CN105173790B (en) | 2017-09-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109748061A (en) * | 2018-12-28 | 2019-05-14 | 珠海优特智厨科技有限公司 | Blanking condition detection method, device and equipment |
| CN115557199A (en) * | 2022-08-18 | 2023-01-03 | 新疆冠农果茸股份有限公司 | Automatic control system and method for cottonseed pretreatment |
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| JPH09315586A (en) * | 1996-05-24 | 1997-12-09 | Ishikawajima Harima Heavy Ind Co Ltd | Quantitative scraper for continuous unloader |
| JP2001253548A (en) * | 2000-03-14 | 2001-09-18 | Ishikawajima Harima Heavy Ind Co Ltd | Continuous unloader |
| CN202226362U (en) * | 2011-07-21 | 2012-05-23 | 江苏牧羊集团有限公司 | Material flow control system |
| CN202464832U (en) * | 2012-02-13 | 2012-10-03 | 布勒（无锡）商业有限公司 | Spiral blade feeder |
| CN202542508U (en) * | 2012-04-19 | 2012-11-21 | 上海亿博机电设备有限公司 | Material blockage prevention hydraulic control system for ship unloader |
| CN202729378U (en) * | 2012-08-20 | 2013-02-13 | 龚智 | Three-arm hydraulic spiral continuous ship unloader |
-
2015
- 2015-10-20 CN CN201510684053.4A patent/CN105173790B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09315586A (en) * | 1996-05-24 | 1997-12-09 | Ishikawajima Harima Heavy Ind Co Ltd | Quantitative scraper for continuous unloader |
| JP2001253548A (en) * | 2000-03-14 | 2001-09-18 | Ishikawajima Harima Heavy Ind Co Ltd | Continuous unloader |
| CN202226362U (en) * | 2011-07-21 | 2012-05-23 | 江苏牧羊集团有限公司 | Material flow control system |
| CN202464832U (en) * | 2012-02-13 | 2012-10-03 | 布勒（无锡）商业有限公司 | Spiral blade feeder |
| CN202542508U (en) * | 2012-04-19 | 2012-11-21 | 上海亿博机电设备有限公司 | Material blockage prevention hydraulic control system for ship unloader |
| CN202729378U (en) * | 2012-08-20 | 2013-02-13 | 龚智 | Three-arm hydraulic spiral continuous ship unloader |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109748061A (en) * | 2018-12-28 | 2019-05-14 | 珠海优特智厨科技有限公司 | Blanking condition detection method, device and equipment |
| CN115557199A (en) * | 2022-08-18 | 2023-01-03 | 新疆冠农果茸股份有限公司 | Automatic control system and method for cottonseed pretreatment |
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| CN105173790B (en) | 2017-09-29 |
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