CN218310752U - Heavy object lifting structure - Google Patents

Abstract

The utility model discloses a heavy object promotes structure relates to haulage equipment technical field. The device comprises a lifting frame, wherein the lifting frame comprises a fixed frame, a plurality of seamless steel tubes and lifting rods which are in one-to-one correspondence with the seamless steel tubes; each seamless steel pipe is fixed on the fixed frame and extends along a first direction; wherein, each pair of mutually corresponding lifting rods and seamless steel pipes. The utility model discloses stop gear at hoisting frame and the setting of hoisting rod top junction for when the hoisting rod was by the jacking, seamless steel pipe and hoisting rod can not take place to rotate the displacement, and then can guarantee that lifting hook initial position can not change, avoided the lifting hook because of initial position change cause with former orbit in other equipment interference in the operation can not normally work the walking, influence the phenomenon of production direct motion.

Description

Heavy object lifting structure

Technical Field

The utility model relates to a haulage equipment technical field specifically is a heavy object promotes structure.

Background

At present, the transfer of continuous casting billets of continuous casting machines of a steel plant at the tail end of a roller way is completed by steel hooking machine equipment, and the frequent operation of the steel hooking machine is key equipment for the production of the continuous casting machines. But in the hook steel machine actual production operation, because equipment encoder trouble, reasons such as the high electric spare part of ambient temperature became invalid and workman maloperation, the hoisting frame of hook steel machine is when doing the action that descends, the lifting hook that is located the lifting bar bottom can collide with the roll table roof beam, roll table or cold bed crossbeam (equipment in the orbit), cause the lifting bar jack-up, the lifting bar is by the jack-up back, can lead to the lifting bar to take place the rotation displacement, and then lead to the initial position change of lifting hook, the operation can interfere normal work walking with other equipment in former orbit, influence the production and move in the same direction as usual, provide a heavy object and promote structure for this reason.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heavy object promotes structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a heavy object lifting structure comprises a lifting frame, wherein the lifting frame comprises a fixed frame, a plurality of seamless steel pipes and lifting rods in one-to-one correspondence with the seamless steel pipes; each seamless steel pipe is fixed on the fixed frame and extends along a first direction; wherein, in each pair of lifting rod and the seamless steel pipe that correspond each other:

the seamless steel pipe is sleeved outside the lifting rod, and the lifting rod can move bidirectionally relative to the seamless steel pipe along the first direction;

an anti-falling mechanism is arranged between the seamless steel tube and the lifting rod to prevent the lifting rod from falling along a first direction;

a limiting mechanism is arranged between the seamless steel tube and the lifting rod to prevent the lifting rod and the seamless steel tube from rotating relatively;

the bottom of the lifting rod is fixedly connected with a lifting hook.

Preferably in the technical scheme, the lifting rod comprises a sliding pipe, and the outer wall of the sliding pipe is fixedly connected with a guide arc plate used for compensating a gap between the sliding pipe and the seamless steel pipe.

Preferred among this technical scheme, stop gear includes: the first polygon limiting pipe and the second polygon limiting pipe are arranged on the outer wall of the shell;

the first polygonal limiting pipe is fixed at the top end of the seamless steel pipe;

the second polygonal limiting pipe is fixed at the top end of the sliding pipe;

the first polygon limiting pipe and the second polygon limiting pipe are matched, and the cross sections of the first polygon limiting pipe and the second polygon limiting pipe are polygons.

Preferably in this technical scheme, the anti-falling mechanism includes: a limiting column and a limiting block;

the limiting column is fixedly connected to the top of the second polygonal limiting pipe;

the middle part of the limiting column is provided with a limiting hole, and the limiting column is in interference fit with the limiting block through the limiting hole;

the length of the limiting block is larger than the maximum outer diameter of the first polygonal limiting pipe.

Preferably, a gap is formed between the limiting block and the second polygonal limiting pipe, a cushion block is arranged in the gap, and the hardness of the cushion block is lower than that of the first polygonal limiting pipe and that of the second polygonal limiting pipe.

Preferably among this technical scheme, the stopper is the wedge column structure of top surface slope, and spacing hole is the inclined hole, the inclination in inclination and the stopper top surface in spacing hole is unanimous.

Preferably among this technical scheme, still including carrying out reciprocating motion's lifting machine along the orbit, be provided with the drive equipment that can drive the hoisting frame and carry out reciprocating motion along the first direction on the lifting machine.

Preferably, in the technical scheme, the sum of the length of the first polygonal limiting pipe and the height of the object to be lifted is less than the length of the second polygonal limiting pipe.

Preferably, in the technical scheme, the cross sections of the first polygonal limiting pipe and the second polygonal limiting pipe are both square.

Preferably, in the technical scheme, the hoister is a steel hooking machine.

Compared with the prior art, the beneficial effects of the utility model are that:

this heavy object promotes structure, the stop gear who sets up in hoisting frame and lifting bar top junction for when the lifting bar was jacking, seamless steel pipe and lifting bar can not take place to rotate the displacement, and then can guarantee that lifting hook initial position can not change, avoided lifting hook because of initial position change cause with former orbit in other equipment in the operation interfere can not normally work walking, influence the phenomenon of production antegrade.

Simultaneously, this heavy object promotes structural design is reasonable, spare part dismouting change and maintenance, and structural design is simple, therefore low in manufacturing cost, structural function reasonable in design, intensity is high, is difficult for receiving the exogenic action to take place to warp, and this heavy object promotes the structure not only can directly be used to the hook steel machine on, can also be applicable to the field that needs promote the action such as metallurgical high temperature or heavy material transportation or other heavy industry logistics industries.

Drawings

FIG. 1 is a front view of a steel hooking machine and a continuous casting slab on a roller bed end device;

fig. 2 is a front view of the steel hooking machine provided by the present invention;

fig. 3 is a view of the lifting frame according to the direction a in fig. 2;

fig. 4 is a view of the lifting frame according to the direction B in fig. 2;

fig. 5 is a front view of the lifting bar of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 5 according to the present invention;

fig. 7 is a right sectional view of the joint of the lifting frame and the lifting rod of the present invention.

In the figure: 1. a hoist; 11. a drive device; 12. a hoisting frame; 121. a fixed frame; 122. seamless steel pipes; 123. a first polygonal limiting tube; 13. a lifting lever; 131. a sliding tube; 132. a second polygonal limiting tube; 133. a guide arc plate; 134. a limiting post; 135. a limiting hole; 14. a lifting hook; 2. running the equipment in the track; 3. continuously casting a slab; 4. a limiting block; 5. a cushion block; 6. and (6) running the track.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a technical solution: a heavy object lifting structure comprises a lifting machine 1 capable of reciprocating along a running rail 6, the lifting machine 1 in the embodiment is a steel hooking machine, the steel hooking machine comprises a lifting frame 12 and a driving device 11 capable of driving the lifting frame 12 to reciprocate in a vertical direction, the lifting frame 12 comprises a fixed frame 121 and a plurality of seamless steel tubes 122 arranged on the fixed frame 121 along a first direction, a lifting rod 13 is movably sleeved inside the seamless steel tubes 122, an anti-falling mechanism for preventing the lifting rod 13 from falling along the first direction (in this embodiment, the first direction is a vertical downward direction) and a limiting mechanism for preventing the lifting rod 13 and the seamless steel tubes 122 from rotating relatively are arranged on the lifting rod 13 and the seamless steel tubes 122, a lifting hook 14 is fixedly connected to the bottom of the lifting rod 13, wherein the seamless steel tube 122 and the lifting rod 13 are both of a round tubular structure, the lifting rod 13 is positioned inside the seamless steel tube 122, and when a vertical upward force is applied to the lifting rod 13, the lifting rod 13 can move upward in the direction of the axis of the seamless steel pipe 122 by the force, when the vertical upward force is cancelled, the lifting rod 13 can fall back under the action of the self gravity, and due to the action of the anti-falling mechanism, when the lifting rod 13 falls back to a certain position, the lifting rod stops falling, and due to the action of the limiting mechanism, in the process of lifting and falling under stress, it does not rotate relative to the seamless steel pipe 122, so that the lifting hook 14 at the bottom of the lifting rod 13 does not shift, and thus, the lifting rod 13 is not jacked up, and then the rotation displacement occurs, so that the initial position of the lifting hook 14 is changed, the phenomenon that the operation in the original operation track interferes with other equipment and can not work and walk normally, and the smooth operation of production is influenced.

As shown in fig. 3, 4 and 5, the present embodiment discloses a specific limiting mechanism, which comprises a first polygonal limiting pipe 123 fixedly connected to the top end of the seamless steel pipe 122 and a second polygonal limiting pipe 132 fixed to the top end of the sliding pipe 131, wherein the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132 are adapted, and the cross sections of the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132 are regular polygons, and the original seamless steel pipe 122 and the lifting rod 13 are both cylindrical structures, so that relative rotation is relatively easy to occur during the ascending and descending of the lifting rod 13, and the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132 are respectively disposed on the top of the seamless steel pipe 122 and the lifting rod 13, so that the lifting rod 13 can slide inside the seamless steel pipe 122 during use, and the second polygonal limiting pipe 132 on the top of the lifting rod 13 slides inside the first polygonal limiting pipe 123, and since the second polygonal limiting pipe 132 and the first polygonal limiting pipe 123 are regular polygons, they cannot rotate like a circular pipe, so that the lifting rod 13 cannot slide inside the seamless steel pipe 122 and the seamless steel pipe 122 cannot slide.

It should be noted that, when the pipe diameters of the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132 are determined, the larger the number of the cross-sectional sides of the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132 is, the weaker the limiting effect is (the smallest number of the sides is three, theoretically the largest number of the sides is infinite, and close to a circle), therefore, in order for the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132 to have a better limiting effect, in the fabrication of the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132, the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132 are preferably selected from a regular triangular square pipe, a square pipe, a regular pentagonal square pipe, and a regular hexagonal square pipe, and in this embodiment, the square pipe is selected to be used to fabricate the first polygonal limiting pipe 123 and the second polygonal limiting pipe 132, as shown in fig. 4, the diagonal dimension of the outer wall of the first polygonal limiting pipe 123 is greater than the outer diameter of the seamless steel pipe 122, the diagonal dimension of the inner wall of the first polygonal limiting pipe 123 is less than the inner diameter of the seamless steel pipe 122, when the first polygonal limiting pipe 123 is fixed by welding, the diagonal dimension of the seamless steel pipe 123 is greater than the wall thickness of the seamless steel pipe 122 in the direction, and the vertical limiting pipe 123 is greater than the polygonal limiting pipe 123, and the limiting pipe 123 is 15 mm.

As shown in fig. 5, the lifting rod 13 includes a sliding tube 131, the outer wall of the sliding tube 131 is fixedly connected with a guiding circular arc plate 133 for making up a gap between the sliding tube 131 and the seamless steel tube 122, it is necessary to know that, since the lengths of the seamless steel tube 122 and the lifting rod 13 are both longer, in order to ensure that the lifting rod 13 has a certain amount of deformation when sliding inside the seamless steel tube 122 during use (since the outer wall of the lifting rod 13 is in rigid contact with the inner wall of the seamless steel tube 122, and is easily damaged if there is no amount of deformation), in design, a gap needs to be left between the lifting rod 13 and the seamless steel tube 122, so that the lifting rod 13 can freely move and slightly deform inside the seamless steel tube 122, but in order to avoid the seamless steel tube 122 from shaking during operation due to the gap, it is necessary to provide the guiding circular arc plate 133 outside the lifting rod 13, in this embodiment, the lifting rod 13 (the sliding tube 131 plus the second polygonal limiting tube 132) is equally divided into four equal parts according to the length, and the guiding circular arc plate 133 is provided at a connection position between adjacent equal parts of the sliding tube 131, in use, since there is a gap, and the sliding tube 131 can generate a slightly smaller length of the guiding circular arc plate 133 than that the first polygonal limiting tube 123, and the sliding tube 123 can generate a smaller length of the first limiting tube 123, and the second polygonal limiting tube 123, and the sliding tube 123 can generate a smaller length of the first limiting tube 123, and a smaller length of the second limiting tube 123.

As shown in fig. 6 and 7, the embodiment provides a specific anti-falling mechanism, the anti-falling mechanism includes a limiting post 134 fixedly connected to the top of a second polygonal limiting tube 132, a limiting hole 135 is formed in the middle of the limiting post 134, and a limiting block 4 is in interference fit in the limiting hole 135, the length of the limiting block 4 is greater than the maximum outer diameter of a first polygonal limiting tube 123, as can be seen from fig. 7, when the sliding tube 131 is jacked up, the sliding tube 131 drives the second polygonal limiting tube 132 to move upwards, and the second polygonal limiting tube 132 drives the limiting post 134 to move upwards, because the limiting block 4 is in interference fit with the limiting hole 135 on the limiting post 134, the limiting block 4 is also driven by the limiting post 134 to move upwards, when the force jacking up the sliding tube 131 is removed, the sliding tube 131, the second polygonal limiting tube 132, the limiting post 134 and the limiting block 4 all fall downwards under the action of gravity, and when the sliding block 4 falls back to the top of the limiting block 4 and the first polygonal limiting tube 123, because the length of the sliding tube 123 is greater than the maximum outer diameter of the first polygonal limiting tube 123, the sliding block 131 can prevent the sliding tube 131 from continuing to fall.

It needs to be known simultaneously that, because stopper 4 is spacing and during operation to whole lift bar 13, need bear lift bar 13 and continuous casting billet 3 gravity and to its pulling force that causes, consequently, need stopper 4 to have better mechanical strength, and the higher material of mechanical strength often its hardness is great, in order to avoid stopper 4 to cause the damage to spacing pipe 123 of first polygon and the spacing pipe 132 of second polygon at the during operation, consequently, the clearance that forms between stopper 4 and the spacing pipe 132 of second polygon needs to be filled up and is established cushion 5, and the hardness of cushion 5 need be less than the hardness of spacing pipe 123 of first polygon and the spacing pipe 132 of second polygon, in order to play the guard action to spacing pipe 123 of first polygon and the spacing pipe 132 of second polygon.

Further, as shown in fig. 7, in order to facilitate the use of the limiting block 4, the limiting block 4 may be designed to have a wedge-shaped structure with an inclined top surface, the limiting hole 135 is an inclined hole, the inclined angle of the limiting hole 135 is consistent with the inclined angle of the top surface of the limiting block 4, the limiting block 4 is designed to have a wedge-shaped structure, so that the limiting block 4 can be conveniently hammered into the limiting hole 135 when in use, and the limiting block 4 can be conveniently removed from the limiting hole 135.

It should be noted that, when using the heavy object lifting structure of the present invention, the sum of the length of the first polygonal limiting pipe 123 and the height of the object to be lifted (i.e. the continuous casting slab 3) needs to be smaller than the length of the second polygonal limiting pipe 132, when the continuous casting machine is produced, the produced continuous casting slab 3 is neatly placed on the top of the equipment 2 in the operation track, when the steel hooking machine (i.e. the elevator 1) needs to transport the continuous casting slab 3 on the top of the equipment 2 in the operation track, firstly the steel hooking machine moves to one side of the continuous casting slab 3 to be transported (and is located between the equipment 2 in the adjacent operation track) along the operation track 6, the further driving device 11 on the steel hooking machine drives the lifting frame 12 to vertically move downwards, and further the lifting rod 13 and the lifting hook 14 both move vertically downwards under the driving of the lifting frame 12, when the horizontal height of the topmost part of the hook body of the lifting hook 14 is lower than the horizontal height of the bottom surface of the continuous casting billet 3, the steel hooking machine moves along the running track 6 again until the hook body of the lifting hook 14 is positioned under the continuous casting billet 3, further driving equipment 11 drives the lifting frame 12 to vertically move upwards, and then the lifting hook 14 lifts the continuous casting billet 3, convey the continuous casting billet 3 to a specified place, so repeating, continuous work can be realized, therefore, the lifting hook 14 needs to descend by at least the distance of the height of one continuous casting billet 3 during work, so as to hook the continuous casting billet 3, therefore, in order to prevent the lifting rod 13 from being damaged when the lifting hook 14 descends, therefore, the sum of the length of the first polygon limiting pipe 123 and the height of the continuous casting billet 3 needs to be smaller than the length of the second polygon limiting pipe 132, so as to effectively prevent the lifting rod 13 from being damaged by being lifted.

When this utility model heavy object hoisting structure of needs assembly, at first set up the lifting hook (the lifting hook can adopt the welding, also can adopt threaded connection) at spacing post 134's top (the mounting means of lifting hook is for being ripe prior art, therefore do not do here any longer describe) or offer the hole that is used for hanging to send at spacing post 134, further articulate wire rope on the driving, and pass the cushion 5 of placing at first polygon spacing pipe 123 top with wire rope in proper order, first polygon spacing pipe 123 and seamless steel pipe 122, further fix wire rope's the other end and the lifting hook or the hole at spacing post 134 top, then adopt the slow spacing post 134 of driving to hoist, further spacing pipe 132 of second polygon and sliding pipe 131 all remove along with spacing post 134, insert in first polygon spacing pipe 123 until spacing pipe 132 of second polygon, sliding pipe 131 inserts in the seamless steel pipe 122, when spacing post 134 exposes, stop, and carry out spacing hole 135 with stopper 4, accomplish the back wire rope, when dismantling as required, can carry out the operation according to this hammer operation step.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A weight lifting structure comprising a lifting frame (12), characterized in that: the lifting frame (12) comprises a fixed frame (121), a plurality of seamless steel tubes (122) and lifting rods (13) which correspond to the seamless steel tubes (122) one by one; each seamless steel pipe (122) is fixed on the fixed frame (121) and extends along a first direction; wherein, in each pair of the lifting rod (13) and the seamless steel tube (122) which correspond to each other:

the seamless steel tube (122) is sleeved outside the lifting rod (13), and the lifting rod (13) and the seamless steel tube (122) can move bidirectionally along the first direction;

an anti-falling mechanism is arranged between the seamless steel tube (122) and the lifting rod (13) to prevent the lifting rod (13) from falling along a first direction;

a limiting mechanism is arranged between the seamless steel tube (122) and the lifting rod (13) to prevent the lifting rod (13) and the seamless steel tube (122) from rotating relatively;

the bottom of the lifting rod (13) is fixedly connected with a lifting hook (14).

2. A weight lifting structure according to claim 1, wherein: the lifting rod (13) comprises a sliding pipe (131), and a guide circular arc plate (133) used for compensating a gap between the sliding pipe (131) and the seamless steel pipe (122) is fixedly connected to the outer wall of the sliding pipe (131).

3. A weight lifting structure according to claim 2, wherein: the stop gear includes: a first polygonal limiting tube (123) and a second polygonal limiting tube (132);

the first polygonal limiting pipe (123) is fixed at the top end of the seamless steel pipe (122);

the second polygonal limiting pipe (132) is fixed at the top end of the sliding pipe (131);

the first polygonal limiting pipe (123) is matched with the second polygonal limiting pipe (132), and the cross sections of the first polygonal limiting pipe (123) and the second polygonal limiting pipe (132) are both polygons.

4. A weight lifting structure according to claim 3, wherein: the anti-falling mechanism comprises: a limiting column (134) and a limiting block (4);

the limiting column (134) is fixedly connected to the top of the second polygonal limiting pipe (132);

a limiting hole (135) is formed in the middle of the limiting column (134), and the limiting column (134) is in interference fit with the limiting block (4) through the limiting hole (135);

the length of the limiting block (4) is larger than the maximum outer diameter of the first polygonal limiting pipe (123).

5. The weight lifting structure according to claim 4, wherein: a gap is formed between the limiting block (4) and the second polygonal limiting pipe (132), a cushion block (5) is padded in the gap, and the hardness of the cushion block (5) is lower than that of the first polygonal limiting pipe (123) and the second polygonal limiting pipe (132).

6. A weight lifting structure according to claim 4 or 5, wherein: the limiting block (4) is of a wedge-shaped structure with the top surface inclined, the limiting hole (135) is an inclined hole, and the inclination angle of the limiting hole (135) is consistent with that of the top surface of the limiting block (4).

7. The weight lifting structure according to any one of claims 1 to 5, wherein: the lifting device is characterized by further comprising a lifting machine (1) capable of reciprocating along the running rail (6), wherein a driving device (11) capable of driving the lifting frame (12) to reciprocate along the first direction is arranged on the lifting machine (1).

8. The weight lifting structure according to any one of claims 3 to 5, wherein: the sum of the length of the first polygonal limiting pipe (123) and the height of the object to be lifted is smaller than the length of the second polygonal limiting pipe (132).

9. The weight lifting structure according to any one of claims 3 to 5, wherein: the cross sections of the first polygonal limiting pipe (123) and the second polygonal limiting pipe (132) are both square.

10. A weight lifting structure according to claim 7, wherein: the hoister (1) is a steel hooking machine.

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