CN216785553U - Eccentric load synchronous constant-speed conveying device for continuous casting slab lifting trolley - Google Patents
Eccentric load synchronous constant-speed conveying device for continuous casting slab lifting trolley Download PDFInfo
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- CN216785553U CN216785553U CN202220030130.XU CN202220030130U CN216785553U CN 216785553 U CN216785553 U CN 216785553U CN 202220030130 U CN202220030130 U CN 202220030130U CN 216785553 U CN216785553 U CN 216785553U
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- lifting trolley
- trolley
- lifting
- continuous casting
- slide rail
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Abstract
The utility model belongs to the technical field of conveying equipment, and relates to an unbalanced-load synchronous constant-speed conveying device for a continuous casting slab lifting trolley, which comprises a lifting trolley arranged on a slide rail and used for carrying a slab, and a winch arranged at the upper end of the slide rail, wherein two pulleys are symmetrically arranged on the lifting trolley, a traction rope used for pulling the lifting trolley is respectively arranged on the two pulleys, one end of each of the two traction ropes is fixed at the upper end of the slide rail, and the other end of each of the two traction ropes is connected with the winch by bypassing the pulley; the winch drives the lifting trolley to slide on the slide rail through the traction rope; the two traction ropes synchronously drive the lifting trolley, and when the lifting trolley is subjected to unbalance loading, the tension of the two traction ropes and the unbalance loading gravity synchronously change, so that the lifting trolley keeps stress balance, and is prevented from inclining.
Description
Technical Field
The utility model belongs to the technical field of conveying equipment, and relates to an unbalanced-load synchronous constant-speed conveying device for a continuous casting slab lifting trolley.
Background
A slab lifting system is mainly used for conveying continuous casting steel billets produced by a steel plant with higher horizontal elevation to a downstream plate mill with lower elevation, the existing lifting system adopts double motors and double winding drums to drive respectively, a steel wire rope on one winding drum passes through two pulleys on a lifting trolley and then is wound on the other winding drum, the lifting trolley is supported on a steel wire rope in a floating mode through two pulley blocks, when the steel billets rise and fall on the trolley, when the gravity center of the steel billets is not on the central line of the trolley, the trolley is in unbalance loading, theoretically, the eccentric moment is balanced by a guide wheel on the trolley, in actual use, the lifting trolley is inclined due to rigid deformation caused by the bearing of the trolley, the trolley is pulled by one steel wire rope, the trolley is supported on the steel wire rope in a floating mode, the tension of two ends of the steel wire rope is equal, the trolley frame is inclined due to the eccentric moment, the steel billets are easy to fall from the trolley, and the counterweight trolley frequently goes down the track because of the deflection, and the fault is very high.
However, in the prior art, as disclosed in chinese patent publication No. CN110951936A, a double-pulley lifting device with a balancer is disclosed, which employs a single-drum driving system, and the balancer fixed by two steel cables allows the two steel cables to automatically and sensitively reduce the tension difference between two traction ropes in the double-pulley lifting device during the working process, so that the two steel cables are stressed the same, but the problem of eccentric moment cannot be solved, and the gravity distribution at the two ends of the trolley is not uniform, and the eccentric moment cannot be balanced under the condition that the tensions of the steel cables at the two ends are equal.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a synchronous constant-speed conveyance device for a continuous casting slab lifting trolley, which solves the problem of eccentric skew of the lifting trolley.
In order to achieve the purpose, the utility model provides the following technical scheme:
the unbalance-loading synchronous constant-speed conveying device comprises a lifting trolley and a winch, wherein the lifting trolley is arranged on a sliding rail and used for carrying a plate blank, the winch is arranged at the upper end of the sliding rail, two pulleys are symmetrically arranged on the lifting trolley, a traction rope used for pulling the lifting trolley is respectively arranged on the two pulleys, one end of each of the two traction ropes is fixed at the upper end of the sliding rail, and the other end of each of the two traction ropes is connected with the winch by bypassing the pulley; the hoist drives the lifting trolley to slide on the slide rail through the traction rope.
Furthermore, two winches are arranged and are respectively connected with the two traction ropes in a one-to-one correspondence manner; the winch comprises a double-output-shaft motor, a speed reducer and a winding drum which are connected in sequence; the traction rope is fixedly connected with the winding drum; the two double-output-shaft motors are connected through a coupler, so that the rotating speeds of the two winding drums are the same.
Furthermore, the upper portion of slide rail is equipped with the fixed bolster, haulage rope fixed connection is in on the fixed bolster.
Furthermore, a pulley is also arranged on the fixed support, and the traction rope is connected with the fixed support by bypassing the pulley on the fixed support.
The lifting trolley is used for balancing the balance weight of the lifting trolley, a pull rope is arranged on the balance weight trolley, a guide wheel is further arranged on the fixed support, and the pull rope is connected with the lifting trolley by bypassing the guide wheel.
Furthermore, two guide wheels which are symmetrically arranged are arranged on the fixed support, and a pull rope is arranged on each guide wheel.
Further, the slide rail is arranged in an inclined mode, and the counterweight trolley is arranged on the lower side of the slide rail.
The utility model has the beneficial effects that:
the lifting trolley provided by the utility model is reliable in operation, and because the speeds of the two traction ropes are always kept consistent, when the lifting trolley is subjected to unbalance loading, the tension of the two traction ropes and the unbalance loading gravity are synchronously changed, namely the tension of the traction rope on the heavy side is increased, and the tension of the traction rope on the light side is decreased, so that the lifting trolley is always kept in a balance device, and the guide wheel does not bear the eccentric torque any more. The lifting trolley has small torsional deformation, and the failure rate is reduced.
According to the utility model, two winches are adopted, two motors are connected through a coupler, the output torques of the two motors are adaptively distributed on two speed reducers, when the load of a winding drum on one side is increased, the redundant torque of the motor on the other side is transmitted through the coupler, so that the input torque of the speed reducer with large load is increased, the synchronous change of the tension of two traction ropes and the unbalance weight is realized, and the torsional deformation of the lifting trolley is avoided.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a synchronous constant-speed conveyer for a continuous casting slab lifting trolley under an unbalanced load condition;
FIG. 2 is a schematic view of a hoist according to the present invention;
FIG. 3 is a schematic view of the installation of the offset-loading synchronous constant-speed conveying device of the continuous casting slab lifting trolley.
Reference numerals: 1-lifting trolley; 2-a winch; 3-a slide rail; 4-counterweight trolley; 5-fixing a bracket; 6-a movable pulley; 7-a traction rope; 8-a guide wheel; 9-pulling a rope; 10-a fixed pulley; 11-a coupling; 12-a slab; 21-double output shaft motor; 22-a reducer; 23-roll.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Please refer to fig. 1-3, which are a synchronous constant-speed conveyer for unbalanced loading of a continuous casting slab lifting trolley, comprising a lifting trolley 1 mounted on a slide rail 3 and used for carrying a slab 12, and a winch 2 mounted on the top end of the slide rail 3, wherein two movable pulleys 6 are symmetrically mounted on the lifting trolley 1, a traction rope 7 used for pulling the lifting trolley 1 is respectively arranged on the two movable pulleys 6, a fixed bracket 5 is arranged on the upper part of the slide rail 3, one end of each of the two traction ropes 7 is fixedly connected to the fixed bracket 5, and the other end of each of the two traction ropes 7 bypasses the movable pulley 6 and is connected with the winch 2; the hoist 2 drives the lifting trolley 1 to slide on the slide rail 3 through the traction rope 7.
The two winches 2 are respectively connected with the two traction ropes 7 in a one-to-one correspondence manner; the winch 2 comprises a double-output-shaft motor 21, a speed reducer 22 and a winding drum 23 which are connected in sequence; the traction rope 7 is fixedly connected with the winding drum 23; the two double-output-shaft motors 21 are connected through the coupling 11, so that the rotating speeds of the two winding drums 23 are the same.
Two fixed pulleys 10 are arranged on the fixed support 5, the traction rope 7 is connected with the fixed support 5 by bypassing the fixed pulleys 10, and the two movable pulleys 6 and the two fixed pulleys 10 respectively form a left pulley block and a right pulley block.
Two guide wheels 8 which are symmetrically arranged are further installed on the fixed support 5, and a pull rope 9 is arranged on each guide wheel 8. One end of the pull rope 9 is connected with the counterweight trolley 4, and the other end of the pull rope bypasses the guide wheel 8 to be fixedly connected with the lifting trolley 1, so that the counterweight balance and the movement guide effect on the lifting trolley 1 are realized. Wherein the slide rail 3 is arranged in an inclined way, and the counterweight trolley 4 is arranged at the lower side of the slide rail 3.
When the device is used, a plate blank 12 produced by a steel mill with a higher horizontal elevation is conveyed to the lifting trolley, the winch 2 lowers the lifting trolley down through the traction rope 7, the plate blank 12 is conveyed to a downstream plate rolling mill with a lower elevation, if the lifting trolley has an unbalance load condition, the coupling 11 transmits the redundant torque of the double output shaft motor 21 on the lighter side to the double output shaft motor 21 on the heavier side, so that the tension of the traction rope 7 on the heavier side is increased, and the unbalance load is balanced; when the lifting trolley has no unbalance loading condition, the output forces of the two double-output-shaft motors 21 are the same, and the transmission torque of the coupling 11 is zero at the moment. Because of the coupling 11, the speed of the two hauling ropes 7 can be ensured to be the same at any time.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a synchronous constant speed conveyor of continuous casting slab lifting trolley unbalance loading, is used for carrying the lift platform truck of slab, locates the hoist engine of slide rail upper end including locating on the slide rail, its characterized in that: two pulleys are symmetrically arranged on the lifting trolley, a traction rope for pulling the lifting trolley is arranged on each of the two pulleys, one end of each of the two traction ropes is fixed at the upper end of the corresponding sliding rail, and the other end of each of the two traction ropes is connected with a winch by bypassing the corresponding pulley; the hoist drives the lifting trolley to slide on the slide rail through the traction rope.
2. The device for synchronously conveying the continuous casting slab lifting/lowering platform vehicle at a constant speed under an unbalanced load according to claim 1, wherein: the two winches are respectively connected with the two traction ropes in a one-to-one correspondence manner; the winch comprises a double-output-shaft motor, a speed reducer and a winding drum which are connected in sequence; the traction rope is fixedly connected with the winding drum; the two double-output-shaft motors are connected through a coupler, so that the rotating speeds of the two winding drums are the same.
3. The device for synchronously conveying the continuous casting slab lifting/lowering platform vehicle at a constant speed under an unbalanced load according to claim 1, wherein: the upper portion of slide rail is equipped with the fixed bolster, haulage rope fixed connection is in on the fixed bolster.
4. The device for synchronously conveying the continuous casting slab lifting/lowering platform vehicle at a constant speed under an unbalanced load according to claim 3, wherein: the fixed support is also provided with a pulley, and the traction rope is connected with the fixed support by bypassing the pulley on the fixed support.
5. The device for synchronously conveying the continuous casting slab lifting/lowering platform vehicle at a constant speed under an unbalanced load according to claim 3, wherein: the lifting trolley is characterized by further comprising a balance weight trolley used for balancing weight of the lifting trolley, a pull rope is arranged on the balance weight trolley, a guide wheel is further arranged on the fixed support, and the pull rope is connected with the lifting trolley by bypassing the guide wheel.
6. The device for synchronously conveying the continuous casting slab lifting/lowering platform vehicle at a constant speed under an unbalanced load according to claim 3, wherein: the fixed support is provided with two guide wheels which are symmetrically arranged, and each guide wheel is provided with a pull rope.
7. The device for synchronously conveying the continuous casting slab lifting/lowering platform vehicle at a constant speed under an unbalanced load according to claim 5, wherein: the slide rail is arranged in an inclined mode, and the counterweight trolley is arranged on the lower side of the slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220030130.XU CN216785553U (en) | 2022-01-04 | 2022-01-04 | Eccentric load synchronous constant-speed conveying device for continuous casting slab lifting trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220030130.XU CN216785553U (en) | 2022-01-04 | 2022-01-04 | Eccentric load synchronous constant-speed conveying device for continuous casting slab lifting trolley |
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| CN216785553U true CN216785553U (en) | 2022-06-21 |
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| CN202220030130.XU Active CN216785553U (en) | 2022-01-04 | 2022-01-04 | Eccentric load synchronous constant-speed conveying device for continuous casting slab lifting trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394506A (en) * | 2022-01-04 | 2022-04-26 | 重庆钢铁股份有限公司 | Method and device for preventing unbalance loading and inclination of continuous casting slab lifting trolley |
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2022
- 2022-01-04 CN CN202220030130.XU patent/CN216785553U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394506A (en) * | 2022-01-04 | 2022-04-26 | 重庆钢铁股份有限公司 | Method and device for preventing unbalance loading and inclination of continuous casting slab lifting trolley |
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