CN110951936B - Double-pulley lifting device provided with balancer and oxygen lance device provided with same - Google Patents
Double-pulley lifting device provided with balancer and oxygen lance device provided with same Download PDFInfo
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- CN110951936B CN110951936B CN201911257388.2A CN201911257388A CN110951936B CN 110951936 B CN110951936 B CN 110951936B CN 201911257388 A CN201911257388 A CN 201911257388A CN 110951936 B CN110951936 B CN 110951936B
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- pull rod
- pulley
- rod
- double
- balancer
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
- C21C5/462—Means for handling, e.g. adjusting, changing, coupling
Abstract
The invention belongs to the field of lifting equipment, and relates to a double-pulley lifting device with a balancer, which comprises a winch, a balancing rod, a lifting trolley and a traction rope, wherein the winch is fixedly arranged on a rigid support, and the midpoint of the balancing rod is rotatably arranged on the rigid support; the lifting trolley is provided with two pulleys, the two pulleys are respectively arranged on two corresponding sides of the lifting trolley, the two traction ropes are wound around the two pulleys and then are respectively connected to two ends of the balancing rod; the double-pulley lifting oxygen lance device comprises a hoisting platform, an oxygen lance and the double-acting pulley lifting device with the balancer. The balancing rod can automatically and sensitively reduce the tension difference between the two hauling ropes in the double-pulley lifting device in the working process, prevent uneven abrasion of the hauling ropes caused by overlarge tension difference of the hauling ropes, prolong the service life of equipment, reduce maintenance frequency and improve production efficiency.
Description
Technical Field
The invention belongs to the field of lifting equipment, and relates to a double-pulley lifting device with a balancer and an oxygen lance device with the same.
Background
The oxygen lance device is indispensable key equipment in converter steelmaking, and the operational reliability of a lifting transmission system of the oxygen lance device is directly related to the stability of converter steelmaking production operation and the quality and efficiency of steelmaking. At present, the lifting transmission system of the oxygen lance device mostly adopts the forms of a duplex winding drum, a double steel wire rope and a double-acting pulley. Because the installation error of equipment, the incomplete consistency of the elongation of the steel wire rope and the abrasion of a mechanism caused by long-term use, and the reasons of frequent lifting action, severe working environment and the like in the working process, the tension on the traction ropes on the two sides of the lifting transmission system of the oxygen lance device is uneven when the traction ropes are used, the service life of the traction ropes is influenced, and the safety accidents such as falling of the oxygen lance and the like can be seriously caused, so that the tension difference of the two traction ropes is reduced as much as possible, and the control is very important within a safety range.
In the lifting mechanism of the existing oxygen lance device, a mechanism for automatically balancing the tension of a hauling rope is not provided, the length of the hauling rope is irregularly adjusted by manpower, or the arranged hauling rope tension balancing mechanism has a complex structure, so that the tension change of the hauling rope in the lifting process of the oxygen lance can not be sensitively adjusted due to low mechanical efficiency. This results in problems that the production safety is affected and the production is interrupted due to the excessive tension difference of the two hauling ropes in the production process, or the normal production rhythm is affected due to the frequent occurrence of the problems caused by the difficult maintenance.
Disclosure of Invention
In view of the above, the present invention provides a double-pulley lifting device with a balancer and an oxygen lance device with the same, which can automatically and sensitively reduce the tension difference between two hauling ropes in the double-pulley lifting device during the working process.
In order to achieve the purpose, the invention provides the following technical scheme: a double-pulley lifting device with a balancer comprises a winch, a balancing rod, a lifting trolley and a traction rope, wherein the winch is fixedly arranged on a rigid support, and the midpoint of the balancing rod is rotatably arranged on the rigid support; the lifting trolley is provided with two pulleys, the two pulleys are arranged on two corresponding sides of the lifting trolley respectively, the two traction ropes are arranged, one ends of the two traction ropes are connected to the winch, and the other ends of the two traction ropes are connected to two ends of the balance rod respectively after bypassing the two pulleys.
Optionally, a tension sensor is arranged on each of the two hauling ropes.
Optionally, pull rods are respectively arranged at two ends of the balance rod, the two pull rods are respectively symmetrically and rotatably arranged at the two ends of the balance rod about the midpoint of the balance rod, the rotation axes of the two pull rods are parallel to each other, the extending directions of the two pull rods are intersected with the extending direction of the balance rod, the two traction ropes are respectively connected to the two pull rods, and the two traction ropes are respectively connected to the two ends of the balance rod through the two pull rods.
Optionally, a limit stop for limiting an angle between the pull rod and the balance bar is arranged between the pull rod and the balance bar.
Optionally, the pull rod comprises a pull rod sleeve and a pull rod body, the pull rope is connected to one end of the pull rod body, the other end of the pull rod body penetrates through the pull rod sleeve and then is exposed out of the pull rod sleeve, a thread is arranged at one end of the pull rod body exposed out of the pull rod sleeve, an adjusting nut used for adjusting the length of the pull rod body exposed out of the pull rod sleeve is further arranged at one end of the pull rod body exposed out of the pull rod sleeve, the pull rod sleeve is rotatably connected to the balance rod, and the pull rod body is rotatably connected with the balance rod through the pull rod sleeve.
Optionally, a pin shaft is arranged between the pulley and the lifting trolley, the pin shaft is arranged on the lifting trolley, and the pulley is rotatably connected to the lifting trolley through the pin shaft.
Optionally, the hauling rope is a steel rope.
Optionally, the tension sensor is externally connected with the tension display instrument box through a cable.
A double-pulley lifting oxygen lance device with a balancer comprises a hoisting platform, an oxygen lance and a double-acting pulley lifting device with the balancer, wherein the oxygen lance is arranged on a lifting trolley, a hoisting machine and a balancing rod are arranged on the hoisting platform, and the oxygen lance is driven by the hoisting machine to lift and move together with the lifting trolley.
The invention has the beneficial effects that: the double-pulley lifting device is provided with the balancing rod, the balancing rod can automatically and sensitively reduce the tension difference between the two traction ropes in the double-pulley lifting device in the working process, the uneven abrasion of the traction ropes caused by the overlarge tension difference of the traction ropes is prevented, the service life of the device is prolonged, the maintenance frequency is reduced, and the production efficiency is improved.
Additional advantages, objects, and features of the invention 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 invention. The objectives and other advantages of the invention 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 invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front view of a dual pulley lifting oxygen lance apparatus provided with a balancer;
FIG. 2 is a left side view of a dual pulley elevating oxygen lance apparatus equipped with a balancer;
FIG. 3 is a schematic diagram of the balancing bar before tension adjustment;
FIG. 4 is a schematic diagram of the tension of the balancing bar after adjustment;
FIG. 5 is a schematic view of the balance bar prior to adjustment;
fig. 6 is a schematic diagram of the balance bar after adjustment.
Reference numerals: the device comprises a hoisting platform 1, a hoisting machine 2, a balancing rod 3, a lifting trolley 4, a traction rope 5, a pulley 6, a tension sensor 7, a pull rod 8, a wedge-shaped joint 9, a limit stop 10, a pull rod sleeve 11, a pull rod body 12, an adjusting nut 13, a pin shaft 14, a hoisting roller 15 and a hoisting drive 16.
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 invention 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 invention 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 invention 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.
Referring to fig. 1 to 6, the lifting oxygen lance device with the double pulleys of the balancer comprises a hoisting platform 1, an oxygen lance and a double-acting pulley 6 lifting device with the balancer, wherein the double-acting pulley 6 lifting device with the balancer comprises a hoisting machine 2, a balancing rod 3, a lifting trolley 4 and a traction rope 5; the oxygen lance is arranged on the lifting trolley 4 and driven by the winch 2 to move up and down along with the lifting trolley 4. The winch 2 is fixedly arranged on the winch platform 1, a through hole for arranging the balance rod 3 is formed in the winch platform 1, and the middle point of the balance rod 3 is rotatably arranged in the through hole in the winch platform 1; two pulleys 6 are arranged on the lifting trolley 4, the two pulleys 6 are respectively arranged on two corresponding sides of the lifting trolley 4, and the two pulleys 6 are symmetrical about the gravity center of the lifting trolley 4. The haulage rope 5 is two, and the one end of two haulage ropes 5 is all connected on hoist engine 2, and the other end of two haulage ropes 5 is walked around two pulleys 6 respectively and is connected respectively on the both ends of balancing pole 3. In this embodiment, the hoisting machine 2 includes a hoisting drum 15 and a hoisting drive 16, and the ends of the two hauling ropes 5 are respectively connected to the two ends of the hoisting drum. Tension sensors 7 are arranged on the two hauling ropes 5. The tension sensor can detect the tension value borne by the traction rope 5. When the tension value exceeds the adjusting range of the device, the tension sensor sends an abnormal signal. All be provided with pull rod 8 on the both ends of balancing pole 3, two pull rods 8 rotate the setting on the both ends of balancing pole 3 about the mid point of balancing pole 3 symmetry respectively, and the axis of rotation of two pull rods 8 is parallel to each other, and the extending direction of two pull rods 8 all intersects with the extending direction of balancing pole 3, and two haulage ropes 5 are connected respectively on two pull rods 8, and two haulage ropes 5 are connected respectively on the both ends of balancing pole 3 through two pull rods 8. In this embodiment, the hauling cable 5 is a steel wire rope, the pull rod 8 is provided with a wedge-shaped joint 9, and the steel wire rope is connected with the pull rod 8 through the wedge-shaped joint 9. A limit stop 10 for limiting the angle between the pull rod 8 and the balance bar 3 is arranged between the pull rod 8 and the balance bar 3. The limit stop 10 restrains the range of the rotation angle of the balance rod 3, the situation that the equipment is damaged due to instability of the mechanism is prevented, and under the extreme situation that the anti-falling device of the lifting trolley 4 is out of order and one of the steel wire ropes is broken, the limit stop 10 can buffer, so that the impact load borne by the residual traction rope 5 is relatively reduced, and the safety of the equipment is further ensured. The pull rod 8 comprises a pull rod 8 sleeve and a pull rod 8 body, the traction rope 5 is connected to one end of the pull rod 8 body, the other end of the pull rod 8 body penetrates through the pull rod 8 sleeve and then is exposed out of the pull rod 8 sleeve, a thread is arranged at one end of the pull rod 8 body exposed out of the pull rod 8 sleeve, and an adjusting nut used for adjusting the length of the pull rod 8 body exposed out of the pull rod 8 sleeve is further arranged at one end of the pull rod 8 body exposed out of the pull rod 8 sleeve
13, a pull rod 8 sleeve is rotationally connected to the balance bar 3, and a pull rod 8 body is rotationally connected with the balance bar 3 through the pull rod 8 sleeve. The length of the pull rod 8 body in the pull rod 8 sleeve can be adjusted by rotating the adjusting nut 13, and then the length of the traction rope 5 is adjusted.
A pin shaft 14 is arranged between the pulley 6 and the lifting trolley 4, the pin shaft 14 is arranged on the lifting trolley 4, and the pulley 6 is rotatably connected on the lifting trolley 4 through the pin shaft 14. The tension sensor 7 is externally connected with a tension display instrument box through a cable, is stable to use and is slightly interfered by external factors.
In actual use, the lengths of the two traction ropes 5 are equal by adjusting the adjusting nuts 13 on the pull rods 8, the two pulleys 6 on the lifting trolley 4 are symmetrically arranged about the gravity center of the lifting trolley 4, the traction forces of the traction ropes 5 on the two ends of the balance rod 3 are equal, the balance rod 3 is in a balanced state, and the gravity center of the lifting trolley 4 is located on a heavy vertical line at the midpoint of the balance rod 3.
When a haulage rope 5 increases because of length, the focus of lift dolly 4 moves towards the unchangeable haulage rope 5's of length direction, and its tension that receives of the unchangeable haulage rope 5 of length increases, and the tension of the haulage rope 5 of length increase reduces, and balancing pole 3 rotates under the effect of the haulage rope 5 of tension increase.
The haulage rope 5 of the less one side of tension rises gradually under the effect of balancing pole 3, and the tension that it receives increases gradually, and a haulage rope 5 that length is less descends gradually under the effect of balancing pole 3, and the tension that it receives reduces gradually, and the focus of lift dolly 4 moves back gradually, and the haulage rope 5 of balancing pole 3 both ends is equal, and balancing pole 3 rebalance.
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 (6)
1. The utility model provides a be provided with double pulley elevating gear of equalizer which characterized in that: the lifting trolley comprises a winch, a balance rod, a lifting trolley and a traction rope, wherein the winch is fixedly arranged on a rigid support, and the middle point of the balance rod is rotatably arranged on the rigid support; the lifting trolley is provided with two pulleys, the two pulleys are respectively arranged on two corresponding sides of the lifting trolley, the two traction ropes are provided, one ends of the two traction ropes are connected to the winch, and the other ends of the two traction ropes are respectively connected to two ends of the balancing rod after respectively bypassing the two pulleys; the two ends of the balancing rod are respectively provided with a pull rod, the two pull rods are respectively and symmetrically arranged on the two ends of the balancing rod in a rotating mode around the midpoint of the balancing rod, the rotating axes of the two pull rods are parallel to each other, the extending directions of the two pull rods are intersected with the extending direction of the balancing rod, the two traction ropes are respectively connected to the two pull rods, and the two traction ropes are respectively connected to the two ends of the balancing rod through the two pull rods; the pull rod comprises a pull rod sleeve and a pull rod body, the traction rope is connected to one end of the pull rod body, the other end of the pull rod body penetrates through the pull rod sleeve and then is exposed out of the pull rod sleeve, threads are arranged at one end of the pull rod body, which is exposed out of the pull rod sleeve, an adjusting nut used for adjusting the length of the pull rod body, which is exposed out of the pull rod sleeve, is further arranged at one end of the pull rod body, which is exposed out of the pull rod sleeve, the pull rod sleeve is rotatably connected to the balance rod, and the pull rod body is rotatably connected with the balance rod through the pull rod sleeve.
2. The double-pulley lifting device provided with a balancer as claimed in claim 1, wherein: and tension sensors are arranged on the two traction ropes.
3. The double-pulley lifting device provided with a balancer as claimed in claim 1, wherein: and a limit stop block used for limiting the angle between the pull rod and the balance rod is arranged between the pull rod and the balance rod.
4. The double-pulley lifting device provided with a balancer as claimed in claim 1, wherein: and a pin shaft is arranged between the pulley and the lifting trolley, the pin shaft is arranged on the lifting trolley, and the pulley is rotationally connected to the lifting trolley through the pin shaft.
5. The double-pulley lifting device provided with a balancer as claimed in claim 1, wherein: the hauling cable is a steel wire rope.
6. The utility model provides a be provided with two pulley lift oxygen rifle devices of balancer, includes hoist platform and oxygen rifle, its characterized in that: the double-acting pulley lifting device provided with the balancer is further comprised in any one of claims 1 to 5, the oxygen lance is arranged on a lifting trolley, a winch and a balancing rod are arranged on the winch platform, and the oxygen lance is driven by the winch to move up and down along with the lifting trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257388.2A CN110951936B (en) | 2019-12-10 | 2019-12-10 | Double-pulley lifting device provided with balancer and oxygen lance device provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257388.2A CN110951936B (en) | 2019-12-10 | 2019-12-10 | Double-pulley lifting device provided with balancer and oxygen lance device provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110951936A CN110951936A (en) | 2020-04-03 |
| CN110951936B true CN110951936B (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911257388.2A Active CN110951936B (en) | 2019-12-10 | 2019-12-10 | Double-pulley lifting device provided with balancer and oxygen lance device provided with same |
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| Country | Link |
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| CN (1) | CN110951936B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864340B (en) * | 2020-07-03 | 2022-05-27 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Antenna balancing system and balancing method |
| CN112143849A (en) * | 2020-08-31 | 2020-12-29 | 辛集市澳森钢铁集团有限公司 | Converter oxygen lance tension balancing equipment and use method thereof |
| CN112501387A (en) * | 2020-10-30 | 2021-03-16 | 鞍钢集团工程技术有限公司 | KR is balanced stirring rake elevating gear of pulling force for desulfurization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495246U (en) * | 2009-09-28 | 2010-06-02 | 中冶赛迪工程技术股份有限公司 | Lifting trolley for preventing an oxygen lance from dropping |
| CN202912614U (en) * | 2012-10-30 | 2013-05-01 | 中冶南方工程技术有限公司 | Oxygen lance hoisting device capable of automatically adjusting tension balance |
| CN204185508U (en) * | 2014-10-17 | 2015-03-04 | 中冶南方工程技术有限公司 | Oxygen rifle elevator steel wire rope tension inherent regulation and proofing unit |
| CN104944267A (en) * | 2015-05-11 | 2015-09-30 | 重庆大学 | Double-steel-wire-rope lifting device tension adjusting system |
-
2019
- 2019-12-10 CN CN201911257388.2A patent/CN110951936B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495246U (en) * | 2009-09-28 | 2010-06-02 | 中冶赛迪工程技术股份有限公司 | Lifting trolley for preventing an oxygen lance from dropping |
| CN202912614U (en) * | 2012-10-30 | 2013-05-01 | 中冶南方工程技术有限公司 | Oxygen lance hoisting device capable of automatically adjusting tension balance |
| CN204185508U (en) * | 2014-10-17 | 2015-03-04 | 中冶南方工程技术有限公司 | Oxygen rifle elevator steel wire rope tension inherent regulation and proofing unit |
| CN104944267A (en) * | 2015-05-11 | 2015-09-30 | 重庆大学 | Double-steel-wire-rope lifting device tension adjusting system |
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| CN110951936A (en) | 2020-04-03 |
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