CN202744256U - Closed-loop lifting device with double speed reducers of ladle crane - Google Patents
Closed-loop lifting device with double speed reducers of ladle crane Download PDFInfo
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- CN202744256U CN202744256U CN201220471241.0U CN201220471241U CN202744256U CN 202744256 U CN202744256 U CN 202744256U CN 201220471241 U CN201220471241 U CN 201220471241U CN 202744256 U CN202744256 U CN 202744256U
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- lifting device
- reductor
- speed reducers
- cover
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Abstract
The utility model discloses a closed-loop lifting device with double speed reducers of a ladle crane, relating to a lifting device of a ladle crane. The technical problem of potential safety hazards existing in the traditional lifting device with double speed reducers of the ladle crane when parts of main driving elements in a driving chain are fractured. Motors drive the speed reducers; the speed reducers are connected with winding drum devices through winding drum couplings; two working brakes are arranged at two ends of high-speed shafts of the speed reducers; and the winding drum devices are connected with a gantry crane through four sets of steel wire ropes after passing through an upper pulley device and a balance arm device. The closed-loop lifting device is characterized in that the tail parts of the two motors are connected by using a clutch, and the tail parts of the two winding drum devices are in rigid connection with a driving shaft through a half-gear coupling. The closed-loop lifting device is used for the ladle crane; and the synchronicity and the safety of the lifting device can be ensured.
Description
Technical field
The utility model relates to the jack up unit of ladle carne, particularly a kind of safe two reductor jack up units.
Background technology
The two reductor jack up units of traditional ladle carne have various ways, but are open loop structure.
Form I (Fig. 2): be that two motors drive respectively two reductors, two reductors drive respectively two cover reels by drum coupling, make the gantry lifting tool lifting by steel cable winding system again.Two motors are rigidly connected by motor afterbody Full-gear coupler, belong to high speed shaft synchronous.Can guarantee when a motor or automatically controlled going wrong another motor or automatically controlledly still can finish a working cycle.There is following problem in this pattern: 1, because this structure is to reach synchronously by high speed shaft, safe and reliable for guaranteeing, need sure brake is installed at reel, therefore cost is high.2, when off-axis occurring in the messenger chain, because a side normally descends, opposite side is out of control freely to descend, and velocity contrast can cause hanger beam to tilt, and molten steel is spilt spatter, poor stability.
Pattern II (Fig. 3): drive simultaneously two reductors by two motors, two reductors drive respectively two cover reels by drum coupling, make the gantry lifting tool lifting by steel cable winding system again.For guaranteeing the synchronous rotary of two winding drum, the reel afterbody overlaps the reel rigid attachment to reach synchronously and safety requirements by adopting transmission shaft and coupler with two.Guarantee when a motor or automatically controlled going wrong another motor or automatically controlledly still can finish a working cycle.There is following problem in this pattern: when off-axis appears in the low speed rotation chain, lose rigidity synchronous, because motor self rotating speed deviation can cause the asynchronous of both sides reel, cause that hanger beam tilts, molten steel is spilt spatter, have potential safety hazard.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of ladle carne two reductor closed loop jack up units, solve the two reductor jack up units of conventional cast hoisting crane, when fracture appearred in the main Transmission of part in the messenger chain, there was the technical matters of potential safety hazard in jack up unit.
The utility model is achieved through the following technical solutions:
The two reductor closed loop jack up units of a kind of ladle carne, comprise two cover lifting mechanisms, every cover lifting mechanism is by an electrical motor, two service brakes, a reductor, one cover roll device, one puts pulley gear, one cover balance arm device and quadruplet steel rope form, the described reductor of described direct motor drive, described reductor links to each other with described roll device by drum coupling, two described service brakes are arranged on described reductor high speed shaft two ends, described roll device is by the described top sheave device of the described steel rope process of quadruplet, described balance arm device is connected with gantry lifting tool, it is characterized in that: the afterbody of two described electrical motors is connected with power-transfer clutch, and the afterbody of the described roll device of two covers is rigidly connected by half gear coupling and transmission shaft.
The utility model is rigidly connected owing to overlapping drive systems by transmission shaft and coupler with two at the roll device afterbody compared with prior art; Having ready conditions with power-transfer clutch at the two motors afterbody is rigidly connected, and makes two cover lifting mechanisms form a closed loop system.Under the nominal situation, the power-transfer clutch of motor afterbody is in released state, and two cover lifting mechanisms are rigidly connected by slow-speed shaft synchronously.When slow-speed shaft occurs under the off-axis state, the speed end power-transfer clutch is closed, and the transmission agency of messenger chain is not changed, and guarantees the normal operation of hoisting crane.The utlity model has the dual safety security function.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is a kind of ladle carne jack up unit schematic diagram in the prior art;
Fig. 3 is another ladle carne jack up unit schematic diagram in the prior art.
The utility model is further described by preferred embodiment below in conjunction with accompanying drawing
The specific embodiment
As shown in Figure 1, the two reductor closed loop jack up units of a kind of ladle carne, comprise two cover lifting mechanisms, every cover lifting mechanism is by an electrical motor 1, two service brakes 2, a reductor 7, one cover roll device 4, one puts pulley gear 3, one cover balance arm device 5 and quadruplet steel rope 6 form, described electrical motor 1 drives described reductor 7, described reductor 7 links to each other with described roll device 4 by drum coupling, two described service brakes 2 are arranged on described reductor 7 high speed shaft two ends, and described roll device 4 is by the described top sheave device 3 of described steel rope 6 processes of quadruplet, described balance arm device 5 is connected with gantry lifting tool; The afterbody of two described electrical motors 1 is connected with power-transfer clutch 8, and the afterbody of the described roll device 4 of two covers is rigidly connected by half gear coupling and transmission shaft 9.
Power-transfer clutch 8 is released state under normal circumstances, and two cover drive systems turn round under the high speed shaft synchronous regime.The motor of every suit drive system by coupler and transmission shaft driven reductor input shaft, is to finish the work of hoisting by speed reducer output shaft by the rope that drum coupling band movable reel, top sheave device and steel rope form with power again.Under the nominal situation, the power-transfer clutch of motor afterbody is in released state, transmitting torque not, and reel afterbody transmission shaft and coupler are rigidly connected two cover drive systems, guarantee synchronism and the safety of jack up unit.
When off-axis appearred in the slow-speed shaft messenger chain, two motor speeds were asynchronous, high speed shaft messenger chain power-transfer clutch 8 closures, and two motors are rigidly connected by motor afterbody power-transfer clutch, reach two cover drive system synchronized operations.
Two cover drive systems are rigidly connected by rigidly connected the having ready conditions with high speed shaft of slow-speed shaft; form a closed loop system; guarantee on the one hand the synchronized operation of normal condition lower mandrel member; and under messenger chain off-axis state; still have cover messenger chain for subsequent use to protect at any time the normal operation of lifting mechanism, the safety that improves ladle crane hoisting device.
Claims (1)
1. two reductor closed loop jack up units of a ladle carne, comprise two cover lifting mechanisms, every cover lifting mechanism is by an electrical motor (1), two service brakes (2), a reductor (7), one cover roll device (4), one puts pulley gear (3), one cover balance arm device (5) and quadruplet steel rope (6) form, described electrical motor (1) drives described reductor (7), described reductor (7) links to each other with described roll device (4) by drum coupling, two described service brakes (2) are arranged on described reductor (7) high speed shaft two ends, described roll device (4) is by the described steel rope of quadruplet (6) process described top sheave device (3), described balance arm device (5) is connected with gantry lifting tool, it is characterized in that: the afterbody of two described electrical motors (1) is connected with power-transfer clutch (8), and the afterbody of the two described roll devices of cover (4) is rigidly connected by half gear coupling and transmission shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220471241.0U CN202744256U (en) | 2012-08-31 | 2012-08-31 | Closed-loop lifting device with double speed reducers of ladle crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220471241.0U CN202744256U (en) | 2012-08-31 | 2012-08-31 | Closed-loop lifting device with double speed reducers of ladle crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202744256U true CN202744256U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220471241.0U Expired - Lifetime CN202744256U (en) | 2012-08-31 | 2012-08-31 | Closed-loop lifting device with double speed reducers of ladle crane |
Country Status (1)
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| CN (1) | CN202744256U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340864A (en) * | 2014-10-11 | 2015-02-11 | 太原重工股份有限公司 | Crane and hoisting mechanism thereof |
| CN104709835A (en) * | 2015-03-23 | 2015-06-17 | 山东钢铁股份有限公司 | Main hoisting mechanism of metallurgy ladle crane and crane |
| CN106284224A (en) * | 2015-05-29 | 2017-01-04 | 湖北省咸宁三合机电制业有限责任公司 | The four-point lifting winch hoist of enclosed central driving |
| CN107514202A (en) * | 2017-09-30 | 2017-12-26 | 广州地铁集团有限公司 | The underlying lift subway flood airtight blast door of drive device |
| CN113697685A (en) * | 2021-09-27 | 2021-11-26 | 大连华锐重工起重机有限公司 | Hoisting mechanism of double-sling crane and crane |
-
2012
- 2012-08-31 CN CN201220471241.0U patent/CN202744256U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340864A (en) * | 2014-10-11 | 2015-02-11 | 太原重工股份有限公司 | Crane and hoisting mechanism thereof |
| CN104340864B (en) * | 2014-10-11 | 2016-04-06 | 太原重工股份有限公司 | A kind of hoisting crane and lifting mechanism thereof |
| CN104709835A (en) * | 2015-03-23 | 2015-06-17 | 山东钢铁股份有限公司 | Main hoisting mechanism of metallurgy ladle crane and crane |
| CN106284224A (en) * | 2015-05-29 | 2017-01-04 | 湖北省咸宁三合机电制业有限责任公司 | The four-point lifting winch hoist of enclosed central driving |
| CN107514202A (en) * | 2017-09-30 | 2017-12-26 | 广州地铁集团有限公司 | The underlying lift subway flood airtight blast door of drive device |
| CN113697685A (en) * | 2021-09-27 | 2021-11-26 | 大连华锐重工起重机有限公司 | Hoisting mechanism of double-sling crane and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
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| CX01 | Expiry of patent term |