CN111824971A - Special cantilever crane for metallurgy - Google Patents

Special cantilever crane for metallurgy Download PDF

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Publication number
CN111824971A
CN111824971A CN202010140988.7A CN202010140988A CN111824971A CN 111824971 A CN111824971 A CN 111824971A CN 202010140988 A CN202010140988 A CN 202010140988A CN 111824971 A CN111824971 A CN 111824971A
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cantilever
sleeved
rotary
fixedly connected
telescopic
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CN202010140988.7A
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CN111824971B (en
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王金龙
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Hefei Kiwi Heavy Machinery Co ltd
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Hefei Kiwi Heavy Machinery Co ltd
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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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The invention relates to the technical field of hoisting devices, in particular to a special cantilever crane for metallurgy, wherein a rotary motor is arranged in an inner cavity of a rotary driving part fixedly connected to the top end of a stand column, a power output end of the rotary motor is sleeved on one side surface of a rotary base and fixedly connected with one end surface of a cantilever, a telescopic beam is sleeved in the inner cavity of the cantilever in an axial sliding manner, an electric hoist is fixedly connected to the outer end of the telescopic beam, a power output end of the telescopic motor in the rotary base is connected with a threaded rod, the threaded rod is sleeved at the axis of the telescopic beam in a threaded manner, a connecting seat is slidably clamped in a groove axially formed in the lower surface of the cantilever, the upper surface of the connecting seat is fixedly connected to the lower surface of the inner end of the telescopic beam, the connecting seat is rotatably connected with a supporting rod, a positioning bolt is sleeved in a through hole of; the problem of current cantilever crane's cantilever can not adjust length is solved.

Description

一种冶金专用悬臂吊A special cantilever crane for metallurgy

技术领域technical field

本发明涉及起吊装置技术领域，具体为一种冶金专用悬臂吊。The invention relates to the technical field of lifting devices, in particular to a special cantilever crane for metallurgy.

背景技术Background technique

悬臂吊属于工业部件，是属于轻型工作强度起重机。悬臂吊一般由立柱、悬臂及电动葫芦组成；立柱底端通常固定连接在底座上，电动葫芦在悬臂上作左右直线运行，并起吊重物。悬臂吊一般具有自重轻，跨度大，起重量大，使用灵活，经济耐用等优点，因此广泛应用于工业生产过程中。在冶金行业中，悬臂吊也是一种常用的设备。Cantilever cranes are industrial components and are light-duty cranes. The cantilever crane is generally composed of a column, a cantilever and an electric hoist; the bottom end of the column is usually fixedly connected to the base, and the electric hoist runs in a straight line on the cantilever, and lifts heavy objects. Cantilever cranes generally have the advantages of light weight, large span, large lifting capacity, flexible use, economical and durable, etc., so they are widely used in industrial production processes. In the metallurgical industry, the cantilever crane is also a commonly used equipment.

但是，现有悬臂吊悬臂长度不可调节，限制了悬臂吊的使用范围，不能满足更多的使用需求。However, the length of the cantilever of the existing cantilever crane cannot be adjusted, which limits the use range of the cantilever crane and cannot meet more use requirements.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供一种冶金专用悬臂吊，用于解决现有悬臂吊的悬臂不能调整长度的问题。The purpose of the present invention is to provide a special cantilever crane for metallurgy, which is used to solve the problem that the length of the cantilever of the existing cantilever crane cannot be adjusted.

为实现上述目的，本发明提供如下技术方案：一种冶金专用悬臂吊，包括立柱、悬臂和电动葫芦，所述立柱的顶端固定连接有回转驱动部，所述回转驱动部的内腔设置有回转电机，所述回转电机的动力输出端贯穿所述回转驱动部的上表面后套接有旋转基座，所述旋转基座的一侧面与所述悬臂的一端面固定连接，所述悬臂的内腔沿轴向滑动套接有伸缩梁，所述电动葫芦固定连接在所述伸缩梁贯穿所述悬臂端面的一端，所述旋转基座内设置有伸缩电机，所述伸缩电机的动力输出端连接有螺纹杆，所述螺纹杆螺纹套接在所述伸缩梁的轴心处，所述悬臂的下表面沿轴向设置有开槽，所述开槽内滑动卡接有连接座，所述连接座的上表面固定连接在所述伸缩梁里端的下表面处，所述连接座转动连接有支撑杆，所述立柱外围沿竖直方向滑动套接有圆环体，所述圆环体一外侧面连接耳座的通孔内套接有定位螺栓，所述支撑杆的底端转动套接在所述定位螺栓的外围。In order to achieve the above purpose, the present invention provides the following technical solutions: a special cantilever crane for metallurgy, including a column, a cantilever and an electric hoist, the top of the column is fixedly connected with a rotary drive part, and the inner cavity of the rotary drive part is provided with a rotary a motor, the power output end of the rotary motor penetrates the upper surface of the rotary drive part and is sleeved with a rotary base, one side surface of the rotary base is fixedly connected with one end face of the cantilever, A telescopic beam is slidably sleeved in the cavity along the axial direction, the electric hoist is fixedly connected to one end of the telescopic beam passing through the end face of the cantilever, a telescopic motor is arranged in the rotating base, and the power output end of the telescopic motor is connected to There is a threaded rod, the threaded rod is threadedly sleeved at the axis of the telescopic beam, the lower surface of the cantilever is provided with a slot along the axial direction, and a connecting seat is slidably clamped in the slot, and the connection The upper surface of the seat is fixedly connected to the lower surface of the inner end of the telescopic beam, the connecting seat is rotatably connected with a support rod, the outer periphery of the column is slidably sleeved along the vertical direction with a ring body, and the ring body is outside A positioning bolt is sleeved in the through hole of the side connecting ear seat, and the bottom end of the support rod is rotatably sleeved on the periphery of the positioning bolt.

优选的，所述圆环体的内壁沿水平方向设置有圆柱槽，所述圆柱槽的外端口处转动套接有滚球。Preferably, the inner wall of the annular body is provided with a cylindrical groove along the horizontal direction, and a rolling ball is rotatably sleeved at the outer port of the cylindrical groove.

优选的，所述圆柱槽的里端面连接有弹簧，所述弹簧的外端连接有圆板，所述圆板的外侧面与所述滚球的外壁相切。Preferably, the inner end surface of the cylindrical groove is connected with a spring, the outer end of the spring is connected with a circular plate, and the outer surface of the circular plate is tangent to the outer wall of the rolling ball.

优选的，所述悬臂底部对应所述开槽外端处设置有挡块。Preferably, a stopper is provided at the bottom of the cantilever corresponding to the outer end of the slot.

优选的，所述圆环体的内径等于所述立柱的外径。Preferably, the inner diameter of the annular body is equal to the outer diameter of the column.

与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:

1.本发明涉及的悬臂吊，通过伸缩电机带动螺纹杆转动，从而有螺纹杆驱动伸缩梁在悬臂的内腔滑动伸缩，以达到调整悬臂整体长度的效果，以便于增加电动葫芦的起吊范围。1. The cantilever crane involved in the present invention drives the threaded rod to rotate through the telescopic motor, so that the threaded rod drives the telescopic beam to slide and extend in the inner cavity of the cantilever, so as to achieve the effect of adjusting the overall length of the cantilever, so as to increase the lifting range of the electric hoist.

2.本发明涉及的伸缩梁在悬臂内伸缩时，带动连接座沿悬臂下表面的开槽滑动；连接座通过支撑杆带动圆环体在立柱的外壁上下套动；当伸缩梁伸出长度调整好后，紧固定位螺栓，使得支撑杆与圆环体上的耳座固定牢固，从而使得支撑杆对悬臂整体提供斜撑作用，从而增强悬臂的起吊能力。2. When the telescopic beam involved in the present invention expands and contracts in the cantilever, it drives the connecting seat to slide along the slot on the lower surface of the cantilever; the connecting seat drives the annular body to move up and down on the outer wall of the column through the support rod; After completion, tighten the positioning bolts so that the support rod and the ear seat on the ring body are firmly fixed, so that the support rod provides a diagonal bracing effect on the cantilever as a whole, thereby enhancing the lifting capacity of the cantilever.

3.本发明涉及的立柱顶面固定连接有回转驱动部，回转驱动部内的回转电机驱动旋转基座进行360°旋转，从而实现旋转基座带动悬臂整体进行360°旋转，大大丰富了悬臂吊的使用功能。3. The top surface of the column involved in the present invention is fixedly connected with a rotary drive part, and the rotary motor in the rotary drive part drives the rotary base to rotate 360°, so that the rotary base drives the cantilever to rotate 360° as a whole, which greatly enriches the cantilever crane. Use function.

附图说明Description of drawings

图1为本发明整体的主视结构示意图；Fig. 1 is the front view structure schematic diagram of the whole of the present invention;

图2为本发明图1中A-A剖视结构示意图；Fig. 2 is A-A sectional structure schematic diagram in Fig. 1 of the present invention;

图3为本发明圆环体的俯视结构示意图；Fig. 3 is the top view structure schematic diagram of the toroid of the present invention;

图4为本发明图3中B-B剖视结构示意图；Fig. 4 is the B-B sectional structure schematic diagram in Fig. 3 of the present invention;

图5为本发明图4中C处的放大结构示意图。FIG. 5 is an enlarged schematic view of the structure at C in FIG. 4 of the present invention.

图中：1-立柱；2-悬臂；21-开槽；22-挡块；3-电动葫芦；4-回转驱动部；41-回转电机；5-旋转基座；51-伸缩电机；6-伸缩梁；61-连接座；7-螺纹杆；8-支撑杆；81-定位螺栓；9-圆环体；91-滚球；92-圆柱槽；93-弹簧；94-圆板。In the figure: 1-column; 2-cantilever; 21-slotting; 22-stop; 3-electric hoist; 4-slewing drive; 41-slewing motor; 5-swivel base; 51- telescopic motor; 6- Telescopic beam; 61-connecting seat; 7-threaded rod; 8-support rod; 81-positioning bolt; 9-ring body; 91-ball; 92-cylindrical groove; 93-spring; 94-circular plate.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

请参阅图1-5，本发明提供一种技术方案，一种冶金专用悬臂吊，包括立柱1、悬臂2和电动葫芦3，立柱1的顶端固定连接有回转驱动部4，回转驱动部4的内腔设置有回转电机41，回转电机41的动力输出端贯穿回转驱动部4的上表面后套接有旋转基座5，旋转基座5的一侧面与悬臂2的一端面固定连接，悬臂2的内腔沿轴向滑动套接有伸缩梁6，电动葫芦3固定连接在伸缩梁6贯穿悬臂2端面的一端，旋转基座5内设置有伸缩电机51，伸缩电机51的动力输出端连接有螺纹杆7，螺纹杆7螺纹套接在伸缩梁6的轴心处，悬臂2的下表面沿轴向设置有开槽21，开槽21内滑动卡接有连接座61，连接座61的上表面固定连接在伸缩梁6里端的下表面处，连接座61转动连接有支撑杆8，立柱1外围沿竖直方向滑动套接有圆环体9，圆环体9一外侧面连接耳座的通孔内套接有定位螺栓81，支撑杆8的底端转动套接在定位螺栓81的外围。1-5, the present invention provides a technical solution, a special cantilever crane for metallurgy, including a column 1, a cantilever 2 and an electric hoist 3, the top of the column 1 is fixedly connected with a rotary drive part 4, A rotary motor 41 is arranged in the inner cavity. The power output end of the rotary motor 41 penetrates the upper surface of the rotary drive part 4 and is sleeved with a rotating base 5 . A telescopic beam 6 is slidably sleeved in the inner cavity of the telescopic beam 6 along the axial direction, and the electric hoist 3 is fixedly connected to one end of the telescopic beam 6 passing through the end face of the cantilever 2. A telescopic motor 51 is arranged in the rotating base 5, and the power output end of the telescopic motor 51 is connected with a The threaded rod 7 is threadedly sleeved at the axis of the telescopic beam 6, and the lower surface of the cantilever 2 is provided with a slot 21 along the axial direction. The surface is fixedly connected to the lower surface of the inner end of the telescopic beam 6, the connecting seat 61 is rotatably connected with the support rod 8, the outer periphery of the column 1 is slidably sleeved with a ring body 9 along the vertical direction, and an outer side of the ring body 9 is connected to the ear seat. A positioning bolt 81 is sleeved in the through hole, and the bottom end of the support rod 8 is rotatably sleeved on the periphery of the positioning bolt 81 .

综上，使用时，伸缩电机51带动螺纹杆7进行旋转；螺纹杆7驱动伸缩梁6在悬臂2的内腔进行滑动，以实现伸缩；伸缩梁6在伸缩的同时，通过连接座61带动支撑杆8运动；与此同时，支撑杆8带动圆环体9沿立柱1的外壁上下套动；当伸缩梁6的伸出长度调整完毕后，紧固定位螺栓81的螺帽，使得支撑杆8与圆环体9的耳座固定连接紧固；支撑杆8对悬臂2整体提供斜撑力，以增强悬臂的起吊能力；回转驱动部4内的回转电机41驱动旋转基座5进行360°旋转，从而实现旋转基座5带动悬臂2整体进行360°旋转。To sum up, when in use, the telescopic motor 51 drives the threaded rod 7 to rotate; the threaded rod 7 drives the telescopic beam 6 to slide in the inner cavity of the cantilever 2 to realize telescopic; The rod 8 moves; at the same time, the support rod 8 drives the ring body 9 to move up and down along the outer wall of the column 1; when the extension length of the telescopic beam 6 is adjusted, tighten the nut of the positioning bolt 81, so that the support rod 8 The support rod 8 provides a diagonal support force to the cantilever 2 as a whole to enhance the lifting capacity of the cantilever; the rotary motor 41 in the rotary drive part 4 drives the rotary base 5 to rotate 360° , so that the rotating base 5 drives the cantilever 2 to rotate 360° as a whole.

本实施例中，圆环体9的内壁沿水平方向设置有圆柱槽92，圆柱槽92的外端口处转动套接有滚球91；使得使用时，减小了圆环体9在立柱1的外壁上下套动以及圆环体9与立柱1外壁相对转动时产生的摩擦力。In this embodiment, the inner wall of the annular body 9 is provided with a cylindrical groove 92 along the horizontal direction, and the outer port of the cylindrical groove 92 is rotatably sleeved with a rolling ball 91; The frictional force generated when the outer wall moves up and down and the annular body 9 rotates relative to the outer wall of the column 1 .

本实施例中，圆柱槽92的里端面连接有弹簧93，弹簧93的外端连接有圆板94，圆板94的外侧面与滚球91的外壁相切；使得使用时，弹簧93通过圆板94向外顶推滚球91，使得滚球91能够与立柱1外壁有效接触。In this embodiment, the inner end surface of the cylindrical groove 92 is connected with a spring 93, the outer end of the spring 93 is connected with a circular plate 94, and the outer surface of the circular plate 94 is tangent to the outer wall of the ball 91; The plate 94 pushes the ball 91 outward, so that the ball 91 can effectively contact the outer wall of the column 1 .

本实施例中，悬臂2底部对应开槽21外端处设置有挡块22；使得使用时，挡块22通过对连接座61形成阻挡，以对伸缩梁6的外伸提供限位作用。In this embodiment, a stopper 22 is provided at the bottom of the cantilever 2 corresponding to the outer end of the slot 21 , so that when in use, the stopper 22 blocks the connecting seat 61 to provide a limit for the extension of the telescopic beam 6 .

本实施例中，圆环体9的内径等于立柱1的外径；使得使用时，圆环体9与立柱1外壁恰好贴合，以便于对支撑杆8的底端进行生根固定。In this embodiment, the inner diameter of the annular body 9 is equal to the outer diameter of the upright column 1 ; so that the annular body 9 fits exactly with the outer wall of the upright column 1 during use, so as to root and fix the bottom end of the support rod 8 .

工作原理：使用时，伸缩电机51带动螺纹杆7进行旋转；螺纹杆7驱动伸缩梁6在悬臂2的内腔进行滑动，以实现伸缩；伸缩梁6在伸缩的同时，通过连接座61带动支撑杆8运动；与此同时，支撑杆8带动圆环体9沿立柱1的外壁上下套动，弹簧93通过圆板94向外顶推滚球91，使得滚球91能够与立柱1外壁有效接触，以减小圆环体9与立柱1的外壁相对运动时产生的摩擦力；当伸缩梁6的伸出长度调整完毕后，紧固定位螺栓81的螺帽，使得支撑杆8与圆环体9的耳座固定连接紧固；支撑杆8对悬臂2整体提供斜撑力，以增强悬臂的起吊能力；回转驱动部4内的回转电机41驱动旋转基座5进行360°旋转，从而实现旋转基座5带动悬臂2整体进行360°旋转。Working principle: When in use, the telescopic motor 51 drives the threaded rod 7 to rotate; the threaded rod 7 drives the telescopic beam 6 to slide in the inner cavity of the cantilever 2 to achieve telescopic; The rod 8 moves; at the same time, the support rod 8 drives the ring body 9 to move up and down along the outer wall of the column 1, and the spring 93 pushes the ball 91 outward through the circular plate 94, so that the ball 91 can effectively contact the outer wall of the column 1 , to reduce the frictional force generated when the annular body 9 and the outer wall of the column 1 move relatively; when the extension length of the telescopic beam 6 is adjusted, tighten the nut of the positioning bolt 81, so that the support rod 8 and the annular body The ear seat of 9 is fixed and connected tightly; the support rod 8 provides a diagonal support force to the cantilever 2 as a whole to enhance the lifting capacity of the cantilever; the rotary motor 41 in the rotary drive part 4 drives the rotary base 5 to rotate 360°, so as to realize the rotation The base 5 drives the cantilever 2 to rotate 360° as a whole.

需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a metallurgical special cantilever crane, includes stand (1), cantilever (2) and electric block (3), its characterized in that: the top end of the upright post (1) is fixedly connected with a rotary driving part (4), an inner cavity of the rotary driving part (4) is provided with a rotary motor (41), a power output end of the rotary motor (41) penetrates through the upper surface of the rotary driving part (4) and then is sleeved with a rotary base (5), one side surface of the rotary base (5) is fixedly connected with one end surface of the cantilever (2), an inner cavity of the cantilever (2) is sleeved with a telescopic beam (6) in an axial sliding mode, an electric hoist (3) is fixedly connected with one end, penetrating through the end surface of the cantilever (2), of the telescopic beam (6), a telescopic motor (51) is arranged in the rotary base (5), a power output end of the telescopic motor (51) is connected with a threaded rod (7), the threaded rod (7) is sleeved on the axis of the telescopic beam (6) in a threaded mode, a notch (21) is formed in the lower surface of the cantilever (2) in, sliding joint has connecting seat (61) in fluting (21), the last fixed surface of connecting seat (61) is connected the lower surface department of flexible roof beam (6) inner end, connecting seat (61) rotate and are connected with bracing piece (8), upright (1) periphery has cup jointed tourus (9) along vertical direction slip, positioning bolt (81) have been cup jointed in the through-hole of tourus (9) a lateral surface connecting lug seat, the bottom of bracing piece (8) is rotated and is cup jointed positioning bolt (81)'s periphery.
2. The cantilever crane special for metallurgy according to claim 1, wherein: the inner wall of the ring body (9) is provided with a cylindrical groove (92) along the horizontal direction, and the outer port of the cylindrical groove (92) is rotatably sleeved with a rolling ball (91).
3. The cantilever crane special for metallurgy according to claim 2, wherein: the inner end face of the cylindrical groove (92) is connected with a spring (93), the outer end of the spring (93) is connected with a circular plate (94), and the outer side face of the circular plate (94) is tangent to the outer wall of the rolling ball (91).
4. The cantilever crane special for metallurgy according to claim 1, wherein: and a stop block (22) is arranged at the bottom of the cantilever (2) corresponding to the outer end of the slot (21).
5. The cantilever crane special for metallurgy according to claim 3, wherein: the inner diameter of the ring body (9) is equal to the outer diameter of the upright post (1).
CN202010140988.7A 2020-03-03 2020-03-03 A special cantilever crane for metallurgy Active CN111824971B (en)

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CN119873645A (en) * 2025-01-21 2025-04-25 湛江中粤能源有限公司 Accurately positioned grab ship unloader discharging device

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Denomination of invention: A metallurgical special cantilever crane Used for lifting and moving heavy objects in a metallurgical workshop. It has a sturdy structure and high load capacity. The design ensures stability and safety during operation. It can be customized according to the specific needs of the user.

Granted publication date: 20240823

Pledgee: Bank of China Feidong Branch

Pledgor: HEFEI KIWI HEAVY MACHINERY Co.,Ltd.

Registration number: Y2026980004702