CN100362259C - Torque controller for tail star gear shaft of belt sintering machine - Google Patents
Torque controller for tail star gear shaft of belt sintering machine Download PDFInfo
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- CN100362259C CN100362259C CNB2005100128129A CN200510012812A CN100362259C CN 100362259 C CN100362259 C CN 100362259C CN B2005100128129 A CNB2005100128129 A CN B2005100128129A CN 200510012812 A CN200510012812 A CN 200510012812A CN 100362259 C CN100362259 C CN 100362259C
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Abstract
The present invention belongs to the field of metallurgical machinery devices. The present invention is characterized in that a main shaft (2) of a star wheel at the tail end of a sintering machine is connected with a low speed great torque motor (6) by a speed increasing mechanism, and an input shaft of the speed increasing mechanism is connected with the main shaft (2) of the star wheel by an expanding sleeve (8); one end of a torque balance plate (5) is connected with a casing of the speed increasing mechanism, and the other end of the torque balance plate (5) is clamped by a regulating screw (4) in a fixed base (3); the fixed base (3) is connected with a machine frame of the sintering machine through a screw bolt, and the low speed great torque motor (6) is connected with a hydraulic part and an electric control part. With the advantages of compact structure, easy installation, energy consumption reduction and high performance-price ratio, the present invention overcomes the driving defect of arching for a lower trolley of a belt sintering machine, extends the service life of the trolley and improves the yield and quality of sintering ores.
Description
Technical field
The invention belongs to the metallurgical machinery equipment field, particularly relate to a kind of continuous pallettype sintering machine torque controller for tail star gear shaft.
Background technique
At present in SINTERING PRODUCTION, the leave from office car team of continuous pallettype sintering machine all exists the arch camber problem, and its form is: after chassis and tail star gear disengaging engagement, trailing wheel upwards lifts, raising height is that 10～50mm does not wait, and chassis row are the zigzag fashion that reduces gradually to head motion.When moving to head, because the engagement of chassis deadweight and head star-wheel, chassis glides or moment impact falls.This transmission defective makes the angle heavy wear of pallet bottom end, has increased the danger that guide rail is smashed, and the most serious is turns back to when getting on the right track when chassis, between the chassis end because wearing and tearing can produce serious leaking out.All these have not only reduced the working life of chassis, and have influenced the output and the quality of sintering deposit, have increased the loss of power.
Studying the conclusion that draws by analysis is: the factor that causes the arch camber of chassis row, except some non-main causes, play a decisive role to be that the tail star gear tooth imposes on the thrust of chassis card wheel excessive, be listed as the last chassis to chassis and caused a tilting moment, thereby make the arch camber of chassis row.
Chinese patent " eliminating the automatic hydraulic resisting moment device of sintering pallet the arch camber " (patent No.: 93102554.0) be a kind of automatic hydraulic resisting moment device.This device polyphone torque sensor and oil hydraulic pump on the main shaft of sintering machine afterbody star-wheel, be provided with elements such as one-way valve, proportional velocity regulating valve in this external hydraulic circuit, the SC sigmal control proportional velocity regulating valve that spreads out of by torque sensor reaches the effect that tail star gear shaft is applied the damping moment of torsion.But this device is not considered the self-priming performance of oil hydraulic pump under the coupling of torque and the low speed, has been subjected to certain restriction in actual applications.
Summary of the invention
Impose on the excessive problem such as chassis row arch camber that causes of the thrust of chassis card wheel in order to overcome existing continuous pallettype sintering machine star-wheel tooth, the invention provides a kind of continuous pallettype sintering machine torque controller for tail star gear shaft, reach the device of torque value by the control of actual demand size by the hydraulic pressure installation consumed energy.
The technical solution adopted for the present invention to solve the technical problems is: the continuous pallettype sintering machine torque controller for tail star gear shaft is made up of expansion set, speed changer and means for equalising, the moment of torsion extremely low and controlled owing to sintering machine afterbody star gear shaft rotating speed is huge, and it is unpractical directly controlling with hydraulic low-speed high pulling torque motor.Therefore, adopt speed increasing mechanism to connect between sintering machine star gear shaft and low-speed big torque motor: said speed increasing mechanism is the combination of using planetary transmission or planetary transmission and exposed gear transmission, the moment of torsion that passes to motor can be reduced a lot so that control like this.Planetary transmission and star gear shaft are connected with expansion set, adopt the exposed gear transmission, the then input shaft of exposed gear and star gear shaft rigid joint, planetary transmission connects with expansion set with the high speed output shaft of exposed gear again; The balance plate of means for equalising and planetary transmission are by Bolt Connection, and the base of means for equalising connects firmly by bolt and sintering machine frame; The effect of means for equalising is a counter balance torque, when star gear shaft rotates, makes planetary transmission keep static; Low-speed big torque motor and planetary transmission are manufactured one, and oil hydraulic motor provides working pressure by hydraulic power unit.In actual applications, can be according to the size of sintering machine model, mechanical part can develop out 4 kinds of connecting modes, but, no matter which kind of mode, its significant feature are to connect tail star gear shaft and this device, use hydraulic damping by the moment of torsion on the low-speed big torque motor control tail star gear shaft.
Hydraulic part is made up of oil hydraulic pump, low-speed big torque motor, valve group and hydraulic pressure auxiliary device, its effect is according to automatically controlled signal and feedback signal, automatically regulate the inlet outlet pressure differential of low-speed big torque motor, thereby produce corresponding damping due to rotation, by speed increasing mechanism star gear shaft is carried out moment of torsion control then.
Automatically controlled part is made up of pressure transducer, single-chip microcomputer, amplifier, storage and shielding wire, its effect is an inlet and outlet pressure of gathering low-speed big torque motor, computing through single-chip microcomputer produces control signal corresponding then, and then the valve group of control hydraulic part, make the inlet outlet pressure differential of low-speed big torque motor produce the damping due to rotation of corresponding conversion to meet the demands.
The invention has the beneficial effects as follows: the present invention adopts expansion set keyless, uses electric-hydraulic proportion control and carries out the moment of torsion loading, has compact structure, and is easy for installation, the advantage that cost performance is high.Can well solve the transmission defective of continuous pallettype sintering machine leave from office car team arch camber, the life-span that can improve chassis, improved the output and the quality of sintering deposit, reduced and leaked out, reduced energy consumption.
Description of drawings
Fig. 1 is that a side star-wheel adopts planetary transmission continuous pallettype sintering machine torque controller for tail star gear shaft structural representation;
Fig. 2 adopts planetary transmission continuous pallettype sintering machine torque controller for tail star gear shaft structural representation for the both sides star-wheel;
Fig. 3 is the continuous pallettype sintering machine torque controller for tail star gear shaft structural representation that a side star-wheel adopts planetary transmission and exposed gear transmission combination;
Fig. 4 adopts the continuous pallettype sintering machine torque controller for tail star gear shaft structural representation of planetary transmission and exposed gear transmission combination for the both sides star-wheel;
Fig. 5 is continuous pallettype sintering machine torque controller for tail star gear shaft hydraulic pressure and automatically controlled part schematic diagram.
In above-mentioned accompanying drawing, 1. tail star gear, 2. tail star gear shaft, 3. fixed base, 4. adjusting screw, 5. balance plate, 6. low-speed big torque motor, 7. planetary transmission, 8. expansion set, 9. high speed output shaft, 10. high gear, 11. low speed gears, 12. fuel tank, 13. oil hydraulic pumps, 14. motors, 15. relief valves, 16,17. selector valves, 18. pressure gauges, 19,20. pressure transducers, 21,22,23,24. electric elementss, 25. proportional pressure control valves, 26. oil purifiers
Embodiment
As shown in Figure 1, an end of tail star gear shaft 2 connects by expansion set 8 and planetary transmission 7; Planetary transmission 7 and low-speed big torque motor 6 manufacture one, have very high machinery driving efficiency and precision; Low-speed big torque motor 6 connects control valve group and pumping plant (Fig. 5); The reaction torque that acts on the planetary transmission 7 is offset by balance plate 5.This scheme is suitable for medium and small continuous pallettype sintering machine.
As shown in Figure 2, this example is fit to be applied to the large belt sintering machine.All pass through expansion set 8 and planetary transmission 7 connections at the two ends of tail star gear shaft 2; Planetary transmission 7 and low-speed big torque motor 6 manufacture one; The reaction torque that acts on the planetary transmission 7 is offset by balance plate 5; The planetary transmission 7 at two ends, low-speed big torque motor 6, balance plate 5, adjusting screw 4 and fixed base 2 are with a kind of model; The oil hydraulic motor at planetary transmission 7 two ends connects control valve group and pumping plant (Fig. 5); Two low-speed big torque motors are implemented the pressure synchronization control; The compound transmission at two ends respectively offset tail star gear shaft excess torque 1/2.
As shown in Figure 3, for better Economy, an end of tail star gear shaft 2 at first connects an open gearing; The high-speed output end 9 of open gearing connects by expansion set 8 and planetary transmission 7; Planetary transmission 7 and low-speed big torque motor 6 manufacture one; Low-speed big torque motor 6 connects control valve group and pumping plant (Fig. 5); The reaction torque that acts on the planetary transmission 7 is offset by balance plate 5.The high low speed gear 10 of open gears and 11 gear ratio are 1: 2～1: 4.
As shown in Figure 4, respectively connect an open gearing at the two ends of tail star gear shaft 2; The high-speed output end 9 of open gearing connects by expansion set 8 and planetary transmission 7; Planetary transmission 7 and low-speed big torque motor 6 manufacture one; Oil hydraulic motor connects control valve group and pumping plant (Fig. 5); The reaction torque that acts on the star gear-shift transmission 7 is offset by balance plate 5; The open gears at two ends (9,10 and 11), planetary transmission 7, low-speed big torque motor 6, balance plate 5, adjusting screw 4 and fixed base 3 are with a kind of model; The high low speed gear 10 of open gears and 11 gear ratio are 1: 2～1: 4; Two low-speed big torque motors are implemented the pressure synchronization control; The compound transmission at two ends respectively offset tail star gear shaft excess torque 1/2.
Hydraulic pressure and electric control part are divided into the foregoing description provides control and working pressure (see figure 5), low-speed big torque motor 6 and planetary transmission are made of one rigid joint, the pressure of its import and export is detected by pressure transducer 19 and 20 respectively, the difference of the two is by comparing with given signal, become feedback signal control ratio relief valve 25, like this inlet outlet pressure differential of low-speed big torque motor 6 can realize given arbitrarily, thereby realize loading to any moment of torsion of star gear shaft.In addition, the switch that whether works as hydraulic system of selector valve 16 and 17; Relief valve 15 has been set up the outlet pressure of oil hydraulic pump 13, is the inlet pressure of low-speed big torque motor 6, has realized the overload protection to pump simultaneously; Because star gear shaft is still not high through rotating speed after the speed change, so the effect that act as the hydraulic oil that certain pressure is provided of oil hydraulic pump 13, prevent the empty air pocket that produces of low-speed big torque motor 6 suctions.
Claims (5)
1. continuous pallettype sintering machine torque controller for tail star gear shaft, be grouped into by tail star gear (1), star gear shaft (2), expansion set (8), hydraulic part and electric control part, it is characterized in that: adopt speed increasing mechanism to connect between sintering machine afterbody star gear shaft (2) and low-speed big torque motor (6), the input shaft of speed increasing mechanism connects with expansion set (8) with star gear shaft (2); One end of balance plate (5) and the housing of speed increasing mechanism are by Bolt Connection, and balance plate (5) the other end is conditioned screw (4) and is clamped in the fixed base (3), and fixed base (3) connects firmly by bolt and sintering machine frame; Said speed increasing mechanism is the combination of planetary transmission (7) or planetary transmission (7) and exposed gear transmission, planetary transmission (7) and low-speed big torque motor (6) manufacture one, and low-speed big torque motor (6) connects hydraulic part and automatically controlled part.
2. continuous pallettype sintering machine torque controller for tail star gear shaft according to claim 1, it is characterized in that: adopt planetary transmission (7) to connect between sintering machine afterbody star gear shaft (2) and low-speed big torque motor (6), planetary transmission (7) input shaft connects with expansion set (8) with star gear shaft (2); The housing of balance plate (5) and planetary transmission (7) passes through Bolt Connection.
3. continuous pallettype sintering machine torque controller for tail star gear shaft according to claim 1 and 2, it is characterized in that: all pass through two expansion sets (8) at the two ends of tail star gear shaft (2) and connect with two planetary transmissions (7) respectively, the planetary transmission at two ends (7), low-speed big torque motor (6), balance plate (5), adjusting screw (4) and fixed base (2) are with a kind of model, and two low-speed big torque motors are implemented the pressure synchronization control.
4. continuous pallettype sintering machine torque controller for tail star gear shaft according to claim 1, it is characterized in that: between sintering machine afterbody star gear shaft (2) and low-speed big torque motor (6), adopt planetary transmission (7) and open gearing combination to link, one end of tail star gear shaft (2) at first connects the low speed gear (11) of an open gearing, and the high-speed output end of open gearing (9) connects by expansion set (8) and planetary transmission (7); The gear ratio of high gear of open gears (10) and low speed gear (11) is 1: 2～1: 4.
5. according to claim 1 or 4 described continuous pallettype sintering machine torque controller for tail star gear shaft, it is characterized in that: respectively connect an open gearing at the two ends of tail star gear shaft (2), the high-speed output end of open gearing (9) connects by expansion set (8) and planetary transmission (7); The high speed output shaft (9) of the open gears at two ends, high gear (10), low speed gear (11), planetary transmission (7), low-speed big torque motor (6), balance plate (5), adjusting screw (4) and fixed base (3) are with a kind of model, and two low-speed big torque motors (6) are implemented the pressure synchronization control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100128129A CN100362259C (en) | 2005-09-10 | 2005-09-10 | Torque controller for tail star gear shaft of belt sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100128129A CN100362259C (en) | 2005-09-10 | 2005-09-10 | Torque controller for tail star gear shaft of belt sintering machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1740586A CN1740586A (en) | 2006-03-01 |
| CN100362259C true CN100362259C (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100128129A Expired - Fee Related CN100362259C (en) | 2005-09-10 | 2005-09-10 | Torque controller for tail star gear shaft of belt sintering machine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101733A (en) * | 1981-12-14 | 1983-06-17 | Hanshin Yosetsu Kizai Kk | Inversion bed type heat treatment apparatus |
| CN88210060U (en) * | 1988-01-19 | 1988-10-19 | 冶金部鞍山黑色冶金矿山设计研究院 | Sintering machine |
| CN1040430A (en) * | 1988-08-16 | 1990-03-14 | 东北重型机械学院 | New-type head and tail spiders for sintering machine |
| CN2116870U (en) * | 1992-04-01 | 1992-09-23 | 熊玉林 | Transmission mechanism of sintering machine |
| JPH07260366A (en) * | 1994-03-28 | 1995-10-13 | Nkk Corp | Detector for falling-off of grate bar in sintering machine and equipment therefor |
| CN2833247Y (en) * | 2005-09-27 | 2006-11-01 | 燕山大学 | Straight-line sintering machine tail star wheel main shaft torsional moment controller |
-
2005
- 2005-09-10 CN CNB2005100128129A patent/CN100362259C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101733A (en) * | 1981-12-14 | 1983-06-17 | Hanshin Yosetsu Kizai Kk | Inversion bed type heat treatment apparatus |
| CN88210060U (en) * | 1988-01-19 | 1988-10-19 | 冶金部鞍山黑色冶金矿山设计研究院 | Sintering machine |
| CN1040430A (en) * | 1988-08-16 | 1990-03-14 | 东北重型机械学院 | New-type head and tail spiders for sintering machine |
| CN2116870U (en) * | 1992-04-01 | 1992-09-23 | 熊玉林 | Transmission mechanism of sintering machine |
| JPH07260366A (en) * | 1994-03-28 | 1995-10-13 | Nkk Corp | Detector for falling-off of grate bar in sintering machine and equipment therefor |
| CN2833247Y (en) * | 2005-09-27 | 2006-11-01 | 燕山大学 | Straight-line sintering machine tail star wheel main shaft torsional moment controller |
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| Publication number | Publication date |
|---|---|
| CN1740586A (en) | 2006-03-01 |
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Granted publication date: 20080116 Termination date: 20100910 |