CN111717779B - Mandrel hoisting mechanism - Google Patents
Mandrel hoisting mechanism Download PDFInfo
- Publication number
- CN111717779B CN111717779B CN202010522797.7A CN202010522797A CN111717779B CN 111717779 B CN111717779 B CN 111717779B CN 202010522797 A CN202010522797 A CN 202010522797A CN 111717779 B CN111717779 B CN 111717779B
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- Prior art keywords
- limiting plate
- mandrel
- hoisting mechanism
- arc
- frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/122—Sling or load protectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The application provides a mandrel hoisting mechanism, belongs to the mechanical equipment field. It comprises a supporting frame; one end of the connecting frame is connected to the top of the supporting frame in an angle manner; the lifting lug is arranged on the connecting frame; the hoisting assembly comprises an arc limiting plate and two positioning plates, and the two positioning plates are parallelly and alternately arranged on the upper surface of the arc limiting plate; the arc limiting plate is bent towards the direction far away from the positioning plate, two connecting grooves are arranged on one side of the arc limiting plate at intervals, and two bolt holes are arranged on the other side of the arc limiting plate at intervals; the bottom of the support frame is arranged between the two positioning plates; the hydraulic cylinder is installed on the support frame, and the driving end is in transmission connection with the upper surface of the arc limiting plate. The device is easy to operate, strong in stability, convenient to use and high in safety performance.
Description
Technical Field
The application relates to the field of mechanical equipment, in particular to a mandrel hoisting mechanism.
Background
The mandrel of the coiler in the hot rolling mill is important production equipment, and needs to be replaced after being used for one period (generally about 50 days), and great troubles are brought to the replacement of the mandrel due to the irregular shape of the mandrel and the limited hoisting space. Originally, use wire rope hoist and mount, not only the dabber is impaired easily, and the dabber slope can appear sliding during hoist and mount, takes place to collide with equipment on every side for dabber and other equipment are impaired, and probably landing in addition breaks away from wire rope, takes place the incident easily.
Disclosure of Invention
An object of this application lies in providing a dabber hoisting machine and constructs, aims at improving the lower problem of current dabber change operation security performance.
The technical scheme of the application is as follows:
a mandrel hoisting mechanism comprises:
a support frame;
one end of the connecting frame is connected to the top of the supporting frame in an angle manner;
the lifting lug is arranged on the connecting frame;
the hoisting assembly comprises an arc limiting plate and two positioning plates, and the two positioning plates are parallelly and alternately arranged on the upper surface of the arc limiting plate; the arc limiting plate is bent towards the direction far away from the positioning plate, two connecting grooves are arranged on one side of the arc limiting plate at intervals, and two bolt holes are arranged on the other side of the arc limiting plate at intervals; the bottom of the supporting frame is arranged between the two positioning plates;
the hydraulic cylinder is installed on the support frame, and the driving end is in transmission connection with the upper surface of the arc limiting plate.
As a technical scheme of this application, the bottom fixed mounting of the free end of link has the balancing weight.
As a technical scheme of this application, the lug articulates on the link.
As a technical scheme of this application, the one end of link with the top vertical connection of support frame.
As a technical scheme of the application, the support frame comprises an oblique support and a vertical support, one end of the vertical support is vertically connected to one end of the connecting frame, and the other end of the vertical support is connected with the oblique support in an angle manner; the bottom of the oblique bracket is arranged between the two positioning plates; the hydraulic cylinder is fixedly installed on the side wall of the vertical support, and the driving end of the hydraulic cylinder is in transmission connection with the upper surface of the arc limiting plate.
As a technical scheme of this application, two be connected with the location axle between the locating plate, the bottom fixed mounting of slant support is in epaxial in the location.
As a technical scheme of this application, vertical support with the slant support is the obtuse angle welding.
As a technical scheme of this application, vertical support is formed by a plurality of I-steel welding, the slant support is formed by a plurality of I-steel welding.
As a technical scheme of this application, two the setting direction of locating plate with the length direction of arc limiting plate is the same.
As a technical scheme of this application, two the spread groove is seted up respectively two angle end departments of one side of arc limiting plate, two the bolt hole is seted up respectively two angle end departments of the opposite side of arc limiting plate.
The beneficial effect of this application:
in the application, in the using process, firstly, a lifting lug is hung on a lifting hook of an overhead travelling crane, the overhead travelling crane is used for adjusting the device to be above a mandrel to be replaced, a modified bolt is screwed into a bolt hole in an arc-shaped limiting plate, one end of a steel wire rope is hung in a connecting groove and bypasses the lower part of the mandrel, and the other end of the steel wire rope is hung on a welding steel bar of the modified bolt for trial hoisting of the mandrel; when in hoisting, the mandrel can be inclined due to the irregular shape of the mandrel, and is hoisted to a proper height at the moment, so that the lowest end of the mandrel is higher than the height of an axle seat of an axle box of the mandrel, the mandrel is moved outwards, the process is repeated, the mandrel is completely separated from the axle box, the oil pipe of the hydraulic cylinder is installed at the moment, the hydraulic cylinder is pressed under pressure, the hydraulic rod of the hydraulic cylinder downwards presses the upper surface of the arc-shaped limiting plate, the mandrel is horizontally and stably hoisted out, and the mandrel is hoisted to a designated position; in addition, when a new mandrel is installed, the installation may be performed in a reverse procedure to the above operation. Therefore, the device can stably lift the core shaft when the core shaft is replaced, can ensure that the core shaft cannot slide, has high safety factor, and cannot cause the safety accidents of the core shaft, the peripheral equipment of the core shaft and constructors. In addition, the device has the advantages of simple structure, safe and reliable use, convenient production and manufacture, low cost, strong universality, convenient operation, time saving and labor saving.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic structural view of a mandrel hoisting mechanism provided in the embodiment of the present application;
fig. 2 is a schematic view of a hoisting state of the mandrel hoisting mechanism provided in the embodiment of the present application.
Icon: 1-mandrel hoisting mechanism; 2-a support frame; 3-a connecting frame; 4-lifting lugs; 5-hoisting the assembly; 6-arc limiting plate; 7-positioning a plate; 8-connecting grooves; 9-bolt holes; 10-a retrofit bolt; 11-a hydraulic cylinder; 12-a counterweight block; 13-oblique support; 14-a vertical support; 15-positioning the shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 and fig. 2 in a matching manner, the present application provides a mandrel hoisting mechanism 1, which includes a support frame 2, a connecting frame 3, a hoisting assembly 5 and a hydraulic cylinder 11, wherein the hoisting assembly 5 includes an arc-shaped limiting plate 6 and two positioning plates 7; wherein, one end of the connecting frame 3 is vertically connected with the top of the supporting frame 2; the bottom of the lifting lug 4 is hinged to the middle position of the connecting frame 3, and the device is hung on a crane lifting hook through the lifting lug 4 during hoisting; meanwhile, the balancing weight 12 is fixedly arranged at the bottom of the free end of the connecting frame 3, so that the whole device is more stable; the two positioning plates 7 are parallelly and alternately arranged on the upper surface of the arc-shaped limiting plate 6, are respectively vertical to the upper surface of the arc-shaped limiting plate 6, and are arranged in a direction parallel to the length direction of the arc-shaped limiting plate 6. The arc limiting plate 6 is made of an arc steel plate with a thicker thickness, the arc surface of the arc limiting plate faces downwards and can wrap a mandrel to be hoisted, connecting grooves 8 are formed in two corner ends of the same side of the arc limiting plate 6, each connecting groove 8 is of a U-shaped opening structure, the top and bottom of each connecting groove penetrate through the top and bottom of the arc limiting plate 6, the opening direction of each connecting groove faces to the direction far away from the other connecting groove 8, the opening directions of the two connecting grooves 8 are opposite, and one end of a steel wire rope is hung on the connecting groove 8 during hoisting; in addition, bolt holes 9 are formed in two angles of the other side of the arc limiting plate 6, the bolt holes 9 are used for installing modified bolts 10, the modified bolts 10 are formed by welding a thick steel bar on a common bolt, and the other end of the steel wire rope is hung on the modified bolts 10 during hoisting. Meanwhile, the bottom of the support frame 2 is arranged between the two positioning plates 7; pneumatic cylinder 11 installs on the lateral wall at the back of support frame 2, and its drive end transmission is connected on the upper surface of arc limiting plate 6, and during the hoist and mount dabber, because the irregular and limited hoist and mount space of dabber shape makes pneumatic cylinder 11 area press, and the hydraulic stem pushes down arc limiting plate 6, can keep the level when making the dabber hang out.
It should be noted that, in this embodiment, the supporting frame 2 includes an oblique bracket 13 and a vertical bracket 14, the vertical bracket 14 is vertically disposed, the top end of the vertical bracket 14 is vertically connected to one end of the connecting frame 3, and the bottom end of the vertical bracket is connected to the oblique bracket 13 at an angle; a positioning shaft 15 is connected between the two positioning plates 7, and the bottom of the inclined bracket 13 is fixedly arranged on the positioning shaft 15; meanwhile, the hydraulic cylinder 11 is fixedly installed on the side wall of the back face of the vertical support 14, namely, the hydraulic cylinder 11 and the inclined support 13 are respectively located on two opposite sides of the vertical support 14, and a hydraulic rod of the hydraulic cylinder 11 is connected to the upper surface of the arc limiting plate 6 in a transmission mode. Therefore, when the mandrel with irregular shape and limited hoisting space is hoisted, the mandrel hoisting device is convenient and simple to use, safe and stable during hoisting, the mandrel cannot touch surrounding equipment during hoisting, and the hoisting safety factor is high.
In this embodiment, the vertical bracket 14 and the diagonal bracket 13 are welded at an obtuse angle.
It should be noted that, in the present embodiment, the vertical bracket 14 is formed by welding a plurality of i-shaped steels, and the diagonal bracket 13 is formed by welding a plurality of i-shaped steels.
The working principle of the mandrel hoisting mechanism 1 is as follows:
firstly, hanging a lifting lug 4 on a lifting hook of a crown block, adjusting the device to the position above a mandrel to be replaced by the crown block, screwing a modified bolt 10 into a bolt hole 9 on an arc-shaped limiting plate 6, hanging one end of a steel wire rope in a connecting groove 8, bypassing the lower part of the mandrel, hanging the other end of the steel wire rope on a welding steel bar of the modified bolt 10, and carrying out trial hanging on the mandrel; when in hoisting, the mandrel can be inclined due to the irregular shape of the mandrel, and is hoisted to a proper height at the moment, so that the lowest end of the mandrel is higher than the height of an axle seat of an axle box of the mandrel, the mandrel is moved outwards, the process is repeated, the mandrel is completely separated from the axle box, an oil pipe of a hydraulic cylinder 11 is installed at the moment, the hydraulic cylinder 11 is pressed under pressure, a hydraulic rod of the hydraulic cylinder presses the upper surface of the arc-shaped limiting plate 6, the mandrel is leveled and stably hoisted out, and the mandrel is hoisted to a designated position; in addition, when a new mandrel is installed, the installation may be performed in a reverse procedure to the above operation.
To sum up, the device can make the dabber steadily lift by crane when changing the dabber, can also guarantee simultaneously that the dabber can not take place to slide, and factor of safety is high, can not cause the condition appearance of dabber, dabber peripheral equipment and constructor's incident. In addition, the device has the advantages of simple structure, safe and reliable use, convenient production and manufacture, low cost, strong universality, convenient operation, time saving and labor saving.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A mandrel hoisting mechanism is characterized by comprising:
a support frame;
one end of the connecting frame is connected to the top of the supporting frame in an angle manner;
the lifting lug is arranged on the connecting frame;
the hoisting assembly comprises an arc limiting plate and two positioning plates, and the two positioning plates are parallelly and alternately arranged on the upper surface of the arc limiting plate; the arc limiting plate is bent towards the direction far away from the positioning plate, two connecting grooves are arranged on one side of the arc limiting plate at intervals, and two bolt holes are arranged on the other side of the arc limiting plate at intervals; the bottom of the supporting frame is arranged between the two positioning plates;
the hydraulic cylinder is arranged on the support frame, and the driving end of the hydraulic cylinder is in transmission connection with the upper surface of the arc limiting plate;
the supporting frame comprises an oblique bracket and a vertical bracket, one end of the vertical bracket is vertically connected with one end of the connecting frame, and the other end of the vertical bracket is connected with the oblique bracket in an angle manner; the bottom of the oblique bracket is arranged between the two positioning plates; the hydraulic cylinder is fixedly installed on the side wall of the vertical support, and the driving end of the hydraulic cylinder is in transmission connection with the upper surface of the arc limiting plate.
2. The mandrel hoisting mechanism of claim 1 wherein a weight is fixedly mounted to the bottom of the free end of said attachment frame.
3. The mandrel hoisting mechanism of claim 1 wherein said lifting eye is hingedly connected to said attachment frame.
4. The mandrel hoisting mechanism of claim 1 wherein one end of said connecting frame is vertically attached to the top of said support frame.
5. The mandrel hoisting mechanism according to claim 1 wherein a positioning shaft is connected between the two positioning plates, and the bottom of the diagonal support is fixedly mounted on the positioning shaft.
6. The mandrel hoisting mechanism of claim 1 wherein said vertical support is welded to said diagonal support at an obtuse angle.
7. The mandrel hoisting mechanism of claim 1 wherein said vertical support is welded from a plurality of i-beams and said diagonal support is welded from a plurality of i-beams.
8. The mandrel hoisting mechanism according to claim 1, wherein the two positioning plates are arranged in the same direction as the length direction of the arc-shaped limiting plate.
9. The mandrel hoisting mechanism according to claim 1 wherein said two connecting slots are respectively provided at two corner ends of one side of said arc-shaped limiting plate and said two bolt holes are respectively provided at two corner ends of the other side of said arc-shaped limiting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010522797.7A CN111717779B (en) | 2020-06-10 | 2020-06-10 | Mandrel hoisting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010522797.7A CN111717779B (en) | 2020-06-10 | 2020-06-10 | Mandrel hoisting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111717779A CN111717779A (en) | 2020-09-29 |
| CN111717779B true CN111717779B (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010522797.7A Active CN111717779B (en) | 2020-06-10 | 2020-06-10 | Mandrel hoisting mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN111717779B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2009980C1 (en) * | 1991-01-14 | 1994-03-30 | Владимир Петрович Веретенников | Apparatus for load gripping |
| DE202004007176U1 (en) * | 2004-05-05 | 2005-03-24 | Heyen Dirk | Pipe laying hook, comprises curved shell for supporting pipe and safety mechanism for holding pipe inside shell |
| CN105174041A (en) * | 2014-05-27 | 2015-12-23 | 陈沛 | Fixture for hoisting and transporting steel pipes |
| CN105366530A (en) * | 2015-11-29 | 2016-03-02 | 重庆智锐德科技有限公司 | Pulley conveying and hanging mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1785987C (en) * | 1990-11-22 | 1993-01-07 | Черноморское Отделение Морских Берегозащитных Сооружений Им.А.М.Жданова Всесоюзного Научно-Исследовательского Института Транспортного Строительства | Load gripper |
| CN102785992A (en) * | 2012-08-09 | 2012-11-21 | 山东华力电机集团股份有限公司 | Lifting appliance for turning cylindrical objects |
| CN203602229U (en) * | 2013-10-28 | 2014-05-21 | 天津市罗伯特数控设备制造有限公司 | Reinforcing steel bar coiling central spindle lifting hook |
| CN103738838B (en) * | 2013-12-23 | 2016-02-03 | 柳州桂泰车辆有限责任公司 | A kind of automobile front shock-proof device suspender |
| CN105540422B (en) * | 2016-01-06 | 2017-10-03 | 北京航天发射技术研究所 | The overhanging upset of hanging shaft type lightweight lifting type frame and product method for turning |
| CN209668615U (en) * | 2018-12-24 | 2019-11-22 | 广西康明斯工业动力有限公司 | A kind of flywheel suspender |
-
2020
- 2020-06-10 CN CN202010522797.7A patent/CN111717779B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2009980C1 (en) * | 1991-01-14 | 1994-03-30 | Владимир Петрович Веретенников | Apparatus for load gripping |
| DE202004007176U1 (en) * | 2004-05-05 | 2005-03-24 | Heyen Dirk | Pipe laying hook, comprises curved shell for supporting pipe and safety mechanism for holding pipe inside shell |
| CN105174041A (en) * | 2014-05-27 | 2015-12-23 | 陈沛 | Fixture for hoisting and transporting steel pipes |
| CN105366530A (en) * | 2015-11-29 | 2016-03-02 | 重庆智锐德科技有限公司 | Pulley conveying and hanging mechanism |
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| Publication number | Publication date |
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| CN111717779A (en) | 2020-09-29 |
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