CN217650696U - Hoisting equipment - Google Patents

Abstract

The utility model relates to an engineering machine tool produces the manufacture equipment field, discloses a handling equipment, include: a winding device capable of winding or releasing the hoist rope (11); a hanger assembly (3) connected to the free end of the sling (11) and capable of being rigidly fixed relative to the winding means or flexibly suspended by the sling (11) as the sling (11) is wound or unwound to selectively limit or allow sway of the hanger assembly (3). The utility model discloses a handling equipment can restrict rocking of gallows assembly and the work piece of hanging on it through the rigidity handling at the handling in-process, fast safely with work piece handling to preset position, can again be if to the assembly process or the work piece positioning process of hole hang in midair through the flexibility and satisfy the flexible regulation demand, can effectively improve the operating efficiency and the operation security of production manufacturing processes such as engineering machine assembly, processing.

Description

Hoisting equipment

Technical Field

The utility model relates to an engineering machine tool produces the manufacture equipment, specifically relates to a handling equipment.

Background

In the production and manufacturing process of engineering machinery, parts (workpieces) with large weight often need to be lifted and placed at preset positions by utilizing lifting equipment to implement or complete production operation steps such as assembly, machining and the like, wherein in the assembly process, a certain part often needs to be lifted and transported to another position to be combined with another part, and before the machining process, the workpieces to be machined need to be lifted and transported to a positioning position on a machine tool so as to be accurately machined. For example, in the manufacturing process of engineering machinery such as an excavator, a crane and the like, the upper frame can be lifted by utilizing a flexible lifting appliance (sling), and lifted to the upper part of the lower frame by a crane, the crane is lifted and translated by manual operation, and the mounting holes of the upper frame and the lower frame are aligned by manual adjustment, so that the assembling operation of the upper frame and the lower frame is completed.

As shown in fig. 1 and 2, when the upper frame 100 is lifted, the suspension cable 11 is flexible and not rigid enough, and thus is likely to swing during lifting. Specifically, in the process of hoisting the upper frame 100 by the traveling crane, the traveling crane is connected to the upper frame 100 through the sling 11 (such as a steel wire rope), so that the phenomena of unequal moving speeds, relative displacement and the like of the traveling crane and the upper frame 100 are easily caused during traveling (such as start and stop stages), the upper frame 100 swings near a stopping point, cannot be stopped and positioned immediately, the assembly operation efficiency is affected, and safety accidents such as the upper frame 100 and the like can be caused in serious cases.

In addition, the lifting point of the upper frame is usually located above for hanging using a conventional spreader. However, this requires the operator to climb onto the frame with a heavy spreader and lock the spreader to the lifting point, which is difficult and labor intensive. The existing production and manufacturing method for hoisting assembly parts and processing workpieces by using a travelling crane still has the problem of over dependence on manual operation, and has lower operation efficiency and intelligence degree.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the work piece of handling takes place to rock easily in the engineering machine tool production manufacturing process that prior art exists, providing a handling equipment, this handling equipment can be at the in good time restriction gallows assembly of handling work piece in-process and the rocking of the work piece of hanging on it, is suitable for and closes assembly such as car and work piece course of working improvement operating efficiency and operation security in.

In order to achieve the above object, the present invention provides a lifting device, including: a winding device capable of winding or releasing a sling; a hanger assembly connected to the free end of the sling and capable of being rigidly fixed relative to the winding device or flexibly suspended by the sling as the sling is wound or released to selectively limit or allow wobble of the hanger assembly and a workpiece locked by the hanger assembly.

Preferably, the hoisting device is a travelling trolley of a travelling crane.

Preferably the lifting apparatus comprises a crane rigidly connected to the hoist means, the crane assembly being capable of being drawn upwardly into rigid engagement with the crane as the hoist line is wound so as to be rigidly fixed relative to the hoist means in this rigidly engaged condition.

Preferably, the lifting frame comprises an upper lifting frame rigidly connected to the hoisting means and a lower lifting frame slidably connected to the upper lifting frame along vertical guides, the lifting frame assembly being capable of being drawn upwards into rigid engagement with the lower lifting frame as the hoist line is reeled.

Preferably, the lifting frame is provided with a first limit sensor for sensing the lifting displacement or the lifting limit of the lower lifting frame relative to the upper lifting frame in the vertical direction.

Preferably, the lifting frame and one end of the lifting frame assembly opposite to each other are respectively provided with a limiting structure capable of being matched with each other, so that the transverse swinging of the lifting frame assembly relative to the lifting frame is limited in a matched state.

Preferably, the limiting structure comprises a guide sleeve arranged on the lifting frame and a guide platform arranged on the lifting frame assembly, and the guide platform can be at least partially matched with the guide sleeve in the circumferential direction when the lifting frame assembly is pulled upwards along with the winding of the sling so as to limit the transverse swinging of the lifting frame assembly relative to the lifting frame.

Preferably, the guide sleeve has a through hole which extends vertically, the hanger assembly is connected with a guide rod which extends along the vertical direction and passes through the through hole, the outer diameter of the guide rod is smaller than the inner diameter of the guide sleeve, the guide table is arranged at the bottom end of the guide rod and has a tapered table surface which extends gradually from bottom to top, and the tapered table surface can be matched with the through hole along with the axial displacement of the guide rod relative to the guide sleeve so as to limit the radial swing of the guide rod relative to the guide sleeve in the matching state.

Preferably, a limiting block with a radial size larger than that of the through hole is connected to a part of the guide rod extending above the guide sleeve, wherein the limiting block has a tapered surface extending in a tapered manner from top to bottom, and/or the limiting block is detachably connected to the guide rod.

Preferably, the hanger assembly comprises a hanger beam and a plurality of hangers each having a pallet, the hangers being adjustably connected to the hanger beam to enable the pallets to be adjusted to lift a workpiece being lifted from the underside thereof.

Preferably, a horizontal guide rail is arranged on the hanger beam, and the hanger is mounted on the horizontal guide rail and can be driven by a driving device to slide along the horizontal guide rail so as to drive the supporting plate to move to the lower side of the lifted workpiece.

Through the technical scheme, the utility model discloses a handling equipment can be at the handling for example for work piece in-process such as the last frame of engineering machine tool selectively will hang the relative hoist device rigid fixation of gallows assembly that has the work piece or suspend in midair by the hoist cable flexibility, can restrict rocking of the work piece of gallows assembly and hanging on it through rigid handling at the handling in-process from this, carry the work piece to preset position fast safely, can be if hang in midair through the flexibility and satisfy the flexible regulation demand to the assembling process or the work piece positioning process of hole again, can effectively improve the operating efficiency and the operation security of engineering machine tool production manufacturing process.

Drawings

FIG. 1 is a schematic view of a prior art excavator during a closing process of the excavator during the process of lifting an upper frame;

FIG. 2 is a top plan view of the upper carriage of FIG. 1 being hoisted;

FIG. 3 is a schematic structural view of a lifting apparatus according to a preferred embodiment of the present invention in preparation for lifting an upper frame;

figure 4 is a schematic view of a crane of the lifting apparatus of figure 3;

figure 5 is a left side view of the crane of figure 4;

FIG. 6 is a schematic view of a limiting structure of the lifting device in FIG. 3;

FIG. 7 is a schematic structural diagram of the lifting equipment in FIG. 3 during rigid lifting of the upper frame and an enlarged view of a limiting structure in the lifting equipment;

FIG. 8 is a schematic view of a hanger assembly of the lifting apparatus of FIG. 3;

FIG. 9 is a left side view of the hanger assembly of FIG. 8;

FIG. 10 is an enlarged view of the hanger assembly of FIG. 8.

Description of the reference numerals

1-driving a vehicle; 11-a sling; 12-a hook; 13-a hoist chain; 2, lifting the rack; 21-lifting and lowering the frame; 22-a lower lifting frame; 23-a vertical guide rail; 24-a first limit sensor; 3-a hanger assembly; 31-a hanger beam; 32-a hanger; 321-a vertical frame; 322-oblique arm; 33-a supporting plate; 33 a-a protective cushion block; 34-a horizontal guide rail; 35-a drive device; 36-a second limit sensor; 4-a limiting structure; 41-a guide sleeve; 42-a guide table; 43-a guide bar; 44-a limiting block; 45-connecting plates; and 100-mounting on a frame.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, the sling is a flexible or twisted cable with a certain flexibility, such as a common steel wire rope used in a hoisting device. Therefore, when the workpiece is flexibly suspended by the sling, the workpiece can swing relative to a frame (such as a travelling trolley, a hoisting device and the like) releasing the sling, so that the workpiece and the frame of the sling are not positioned on the same vertical line any more. In contrast, relatively rigidly fixed means that the relevant part or device is relatively fixed at least in the horizontal direction or in the horizontal circumferential direction around the vertical centre line, whereby the spreader assembly cannot wobble (swing) or rotate relative to the spreader in a later described state, e.g. in which the spreader assembly is rigidly fixed relative to the spreader.

Referring to fig. 3, the lifting apparatus according to a preferred embodiment of the present invention includes a hoisting device, such as a traveling carriage of the traveling crane 1, a crane 2, a hanger assembly 3, and the like. The winding device is capable of winding or releasing the sling 11; the lifting frame 11 is rigidly connected to the traveling trolley of the travelling crane 1 so as to synchronously move along with the movement of the traveling trolley in the horizontal direction; the hanger assembly 3 is connected to a suspension rope 11 of the traveling crane 1 and can be used to hang a workpiece by being locked to a predetermined hanging point of the workpiece such as an upper frame 100 of a construction machine, which is an excavator. Wherein, the hanger assembly 3 can be rigidly fixed relative to the crane 2 or flexibly suspended by the sling 11 along with the winding or releasing of the sling 11, thereby selectively limiting or allowing the hanger assembly 3 to swing relative to the crane 2.

In the preferred embodiment as described later, when the travelling crane 1 winds the sling 11 to a preset height, the lifting frame assembly 3 and the lifting frame 2 limit the transverse swing of the lifting frame assembly 3 relative to the lifting frame 2 through the limiting structure 4, so that the lifting frame assembly 3 is rigidly fixed relative to the lifting frame 2 under the pulling force exerted by the sling 11 and the transverse limiting action exerted by the lifting frame 2 through the limiting structure 4, the lifting frame assembly 3 and a hung workpiece can synchronously move (horizontally displace) along with the travelling trolley of the travelling crane 1 and the lifting frame 2, and the swinging in the lifting process is avoided; when the hanger assembly 3 is flexibly suspended by the sling 11, the lifting frame 2 does not exert a transverse limiting effect on the hanger assembly 3 any more, so that the hanger assembly 3 and a workpiece hung on the hanger assembly can freely swing relative to a walking trolley of the travelling crane 1 at the free end of the sling 11, the flexible adjustment requirement in the assembling and positioning process is met, and the assembling steps such as hole aligning and the like are conveniently implemented.

In other embodiments, the crane assembly 3 may also be rigidly fixed to the crane 2 by other parts or mechanisms, such as a locking mechanism that can be adjusted in a locking position and a releasing position is provided on the crane assembly 3 or the crane 2, so as to rigidly fix the crane assembly 3 and the crane 2 in at least one direction by the locking mechanism during the hoisting process, thereby restricting the freedom of horizontal displacement or rotation around the horizontal circumference of the vertical center line.

Therefore, the utility model discloses a handling equipment can be at the handling for example for excavator, engineering machine tool's such as hoist go up frame 100 or need by the in-process selectivity of waiting to process work piece such as part of machine tool machining with hanging the gallows assembly 3 relative crane 2 rigid fixation that has the work piece or hang in midair by hoist cable 11 flexibility, can restrict rocking of gallows assembly 3 and the work piece of hanging on it through rigid handling at the handling in-process from this, carry work piece to preset position fast safely, can hang in midair through the flexibility and satisfy the flexible regulation demand in assembly process or work piece positioning process as to the hole again, can effectively improve engineering machine tool production manufacturing process's operating efficiency and operation security.

In the utility model, the hoisting device can be selected as other equipment besides the walking trolley, which can wind or release the sling 11 to hoist the workpiece; the hanger assembly 3 can also be directly and rigidly fixed with the walking trolley, and the lifting frame 2 is omitted.

The slings 11 may be attached to the spreader assembly 3 in any suitable manner during handling. For example, the travelling crane 1 is typically provided with a hook 12 at the free end of the sling 11, which hook 12 may be connected to a plurality of connection points of the hanger assembly 3 by a sling chain 13, a sling ring or the like, in order to stably lift the hanger assembly 3.

In a preferred embodiment of the lifting device according to the present invention, as shown in fig. 4 and 5, the crane 2 may comprise an upper lifting frame 21 rigidly connected to the travelling trolley and a lower lifting frame 22 slidably connected to the upper lifting frame 21 along vertical guide rails 23. The spreader assembly 3 can be drawn up into rigid engagement with the lower spreader 22 as the sling 11 is wound. In this case, after the suspension cable 11 is wound to lift the suspension assembly 3 upwards, the suspension assembly 3 is rigidly connected to the lower lifting frame 22, and then the lifting suspension assembly 3 continues to move upwards along with the further winding of the suspension cable 11, and the lower lifting frame 22 is driven to slide upwards along the vertical guide rail 23 relative to the upper lifting frame 21, so that the suspension assembly 3 and the workpiece hung thereon can be lifted to a relatively high height position, and the workpiece can be prevented from colliding with other devices on the ground.

In the illustrated preferred embodiment, the upper lifting frame 21 and the lower lifting frame 22 are provided as a frame structure, and a vertical guide rail 23 is provided on the upper lifting frame 21, and the lower lifting frame 22 is sleeved on the upper lifting frame 21 and slides along the vertical guide rail 23. The non-free lifting frame 22 slips from the lower end of the lifting frame 21, and a limit structure can be arranged at the connection part of the non-free lifting frame. In an alternative embodiment, a guide groove for guiding the lower lifting frame 23 to slide may be provided on the upper lifting frame 21.

Further, the crane 2 can be further provided with a first limit sensor 24, and the first limit sensor 24 can sense the lifting displacement or lifting limit of the lower crane 22 relative to the upper crane 21 in the vertical direction, so that the crane 1 is controlled to drive the lower crane 22 to move to a range exceeding the vertical guide rail 23, the safety of the system is improved, and intelligent assembly is facilitated.

Referring to fig. 3, 5 to 7, a preferred embodiment of the hoisting device of the present invention may utilize a limiting structure 4 so that the crane 2 can limit the sway of the hanger assembly 3 in a rigidly joined state. Wherein, the opposite ends of the crane 2 and the crane assembly 3 are respectively provided with a limiting structure 4 which can be matched with each other, so that the limiting structures can interact in the horizontal direction to limit the relative movement in the transverse direction.

In the illustrated preferred embodiment, the limiting structure 4 comprises a guide sleeve 41 arranged on the crane 2 and a guide platform 42 arranged on the crane assembly 3, and when the crane assembly 3 is lifted to a predetermined height position by the suspension cable 11 of the crane 1, the guide platform 42 on the crane assembly 3 is matched with the guide sleeve 41 in the circumferential direction to limit the transverse swing of the crane assembly 3 relative to the crane 2.

Thus, the guide sleeve 41 and the guide table 42 of the stopper structure 4 can be provided in any suitable configuration that can be fitted. In the illustrated preferred embodiment, the guide sleeve 41 has a through hole extending vertically therethrough, and may be welded to the bottom end of the crane 2 (lower crane 22); the guide table 42 may be welded to a hanger beam 31 of the hanger assembly 3 described later by, for example, a connecting plate 45 (see fig. 7 and 8), and has a tapered surface extending in a tapered manner from bottom to top. In a state where the hanger assembly 3 is lifted by the hoist rope 11 to be almost in contact with the bottom end of the crane 2, the tapered surface of the guide table 42 is fitted into the through hole, so that the crane 2 can restrict the lateral swing of the hanger assembly 3 in the fitted state. By providing the guide table 42 with a tapered table surface and providing a tapered flare (tapered portion) at the end of the guide sleeve 41 facing the spreader assembly 3, the guide table 42 can be guided to cooperate with the guide sleeve 41 when the spreader assembly 3 is lifted to move toward the crane 2, improving operational reliability.

In the preferred embodiment shown in the drawings, a guide rod 43 extending in a vertical direction and passing through a through hole of the guide bush 41 is connected to the hanger assembly 3, and an outer diameter of the guide rod 43 is smaller than an inner diameter of the guide bush 41 (i.e., a minimum diameter of the through hole), so that a certain guiding function can be performed when the hanger assembly 3 is flexibly suspended by the suspension cable 11, and the crane 2 does not affect flexible adjustment of the hanger assembly 3 within a certain range. The guide table 42 may be disposed at the bottom end (integrally formed) of the guide rod 43, so as to be connected to the hanger assembly 3 by welding or the like, and in a state that the guide table 42 is engaged with the guide sleeve 41, the guide sleeve 41 can limit the radial swing of the guide rod 43 relative to the guide sleeve 41, thereby realizing the rigid engagement of the hanger assembly 3 and the crane 2 in the horizontal direction.

In order to prevent the hanger assembly 3 from descending beyond the guide range of the guide rod 43, a stopper 44 having a radial dimension larger than that of the through hole of the guide bush 41 may be connected to a portion of the guide rod 43 extending above the guide bush 41. The limiting block 44 may also be provided with a frustum surface tapered from top to bottom, so that when the hanger assembly 3 is released to enable the limiting block 44 to be matched with the guide sleeve 41, the hanger assembly 3 can be limited to swing relative to the lifting frame 2, and the workpiece can be prevented from swinging at the moment of starting to lift. In addition, the limiting block 44 can be detachably connected to the guide rod 43 by screwing, etc., thereby facilitating the assembly of the limiting structure 4 between the crane 2 and the crane assembly 3.

The utility model discloses in, gallows assembly 3 can set up to arbitrary one kind can be with the structural style that corresponding work piece locking and promoted. In the illustrated preferred embodiment, as shown in fig. 8 to 10 in combination, the hanger assembly 3 includes a hanger beam 31 and a plurality of hangers 32, the hangers 32 being adjustably connected to the hanger beam 31 and having pallets 33, respectively, so as to be adjustable such that the pallets 33 are located on the lower side of the workpieces to be lifted, and lifting the workpiece by lifting. For large workpieces such as an upper frame of an excavator, the operation step that an operator climbs the workpiece to lock the lifting appliance at a lifting point is omitted, and labor intensity is reduced conveniently.

Further, the spreader beam 31 may be provided with a horizontal rail 34 and a driving device 35 such as an electric cylinder, the hanger 32 is mounted on the horizontal rail 34 and can be driven by the driving device 35 to slide along the horizontal rail 34, thereby moving the pallet 33 to the lower side of the workpiece to be lifted, and the hanger 32 can be controlled to lift the workpiece at the lower side and clamp at the side. Through setting up the horizontal displacement volume of gallows 32 on gallows crossbeam 31, can also be according to the sliding distance of work piece size information automatic control drive arrangement 35 drive gallows 32 to from pressing from both sides the work piece of being hoisted, promote the intelligent degree of handling equipment. In other embodiments, the driving device 35 may be provided as another power element such as a hydraulic cylinder or an air cylinder.

For this purpose, a second limit sensor 36 for sensing a horizontal displacement amount or a horizontal displacement limit of the hanger 32 with respect to the hanger beam 31 may be further installed on the hanger beam 31 to measure a horizontal displacement amount of the hanger 32 or to prevent the hanger 32 from slipping out of an extension range of the horizontal guide rail 34.

As described above, by horizontally adjusting the position of the hanger 32 on the hanger beam 31, it is possible to clamp or release the workpiece, and for this reason, a pair of hangers 32 disposed opposite to each other may be attached to the hanger beam 31, whereby the pair of hangers 32 can be driven to move toward each other to clamp the workpiece. In other embodiments, more hangers 32 arranged in the circumferential direction may be provided on the hanger beam 31 to apply force to the work being lifted in multiple directions and positions. The hanger beam 31 and the hanger 32 may be welded by steel sections.

The hanger 32 may include a vertical frame 321 vertically extending downward from the hanger beam 31 and an oblique arm 322 connected between the vertical frame 321 and the hanger beam 31 and extending obliquely, so that a triangular stable structure is formed by the vertical frame 321, the oblique arm 322 and the hanger beam 31, and the triangular stable structure has high structural strength and is beneficial to lifting heavy workpieces.

For an upper frame 100, such as an excavator loading procedure, it is common to paint prior to loading. In order to prevent the hanger 32 from damaging the paint when the upper frame 100 is lifted, a protective pad 33a may be provided on an upper surface of the support plate 33 for lifting, thereby separating the upper frame 100 from the support plate 33 having a high hardness. Among them, the protection pad 33a may be selected as a polyurethane pad so as to avoid rapid aging while having appropriate hardness.

By using the hoisting equipment, the upper frame can be hoisted and assembled on the lower frame, and the process of assembling the engineering machinery in a combined manner is realized. In the process, when the hanger assembly 3 and the upper frame 100 are lifted by the suspension ropes 11 of the travelling crane 1, the crane 2 does not have a constraint effect on the hanger assembly 3 and is flexibly suspended only by the suspension ropes 11; when the hanger assembly 3 is lifted to a predetermined height, the upper frame 100, the hanger assembly 3, the crane 2, etc. may form a rigid connection body (e.g. through the pulling force of the suspension cable 11 and the horizontal limiting action of the limiting structure 4) so as to move synchronously with the traveling trolley without shaking in the lifting step. After the crane is transported to the proper position, the sling 11 is released, and the hanger assembly 3 descends relative to the crane 2 to be separated from the rigid fixed state, so that the hanger assembly 3 and the upper frame 100 have enough flexibility to meet the flexible adjustment requirement of the assembly step with the lower frame.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (11)

1. A hoisting device, comprising:

a winding device capable of winding or releasing the hoist rope (11);

a hanger assembly (3) connected to the free end of the sling (11) and capable of being rigidly fixed relative to the hoisting means or flexibly suspended by the sling (11) as the sling (11) is wound or released to selectively limit or allow wobble of the hanger assembly (3) and the work piece locked by the hanger assembly (3).

2. The hoisting device of claim 1, wherein the hoisting means is a trolley of the trolley (1).

3. Hoisting device as claimed in claim 1, characterized in that the hoisting device comprises a crane (2) rigidly connected to the hoisting means, the crane assembly (3) being towable upwards into rigid engagement with the crane (2) as the hoisting ropes (11) are wound, to be rigidly fixed in this rigidly engaged state relative to the hoisting means.

4. Hoisting device as claimed in claim 3, characterized in that the crane (2) comprises an upper crane (21) rigidly connected to the hoisting means and a lower crane (22) slidably connected to the upper crane (21) along vertical guides (23), the crane assembly (3) being towable upwards into rigid engagement with the lower crane (22) as the hoisting ropes (11) are wound.

5. Lifting equipment as claimed in claim 4, characterized in that the lifting frame (2) is provided with a first limit sensor (24) for sensing the lifting displacement or the lifting limit of the lower lifting frame (22) relative to the upper lifting frame (21) in the vertical direction.

6. The hoisting equipment as recited in claim 3, characterized in that the crane (2) and the crane assembly (3) are provided with a limiting structure (4) at their ends opposite to each other, respectively, which can be engaged with each other, so as to limit the transverse swinging of the crane assembly (3) relative to the crane (2) in the engaged state.

7. The hoisting device of claim 6, characterized in that the limiting structure (4) comprises a guide sleeve (41) arranged on the crane (2) and a guide platform (42) arranged on the crane assembly (3), and the guide platform (42) can at least partially cooperate with the guide sleeve (41) in the circumferential direction to limit the transverse swing of the crane assembly (3) relative to the crane (2) when the crane assembly (3) is pulled upwards along with the winding of the sling (11).

8. The hoisting equipment of claim 7, wherein the guide sleeve (41) is provided with a through hole which penetrates through and extends up and down, the hoisting frame assembly (3) is connected with a guide rod (43) which extends along the vertical direction and penetrates through the through hole, the outer diameter of the guide rod (43) is smaller than the inner diameter of the guide sleeve (41), the guide table (42) is arranged at the bottom end of the guide rod (43) and is provided with a tapered table surface which gradually extends from bottom to top, and the tapered table surface can be matched with the through hole along with the axial displacement of the guide rod (43) relative to the guide sleeve (41) so as to limit the radial swinging of the guide rod (43) relative to the guide sleeve (41) in the matching state.

9. The hoisting equipment of claim 8, characterized in that the part of the guide rod (43) extending above the guide sleeve (41) is connected with a stopper (44) having a radial dimension larger than the through hole, wherein the stopper (44) has a tapered surface extending from top to bottom, and/or the stopper (44) is detachably connected to the guide rod (43).

10. Handling equipment according to claim 1, c h a r a c t e r i z e d in that the hanger assembly (3) comprises a hanger beam (31) and a plurality of hangers (32) each having a pallet (33), which hangers (32) are adjustably connected to the hanger beam (31) to enable adjustment of the pallets (33) to lift a workpiece being handled from its underside.

11. The hoisting equipment of claim 10, characterized in that the hanger beam (31) is provided with a horizontal guide rail (34), and the hanger (32) is mounted on the horizontal guide rail (34) and can be driven by a driving device (35) to slide along the horizontal guide rail (34) to clamp the workpiece from the outer side of the workpiece and drive the pallet (33) to move to the lower side of the workpiece to be hoisted.

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