CN220283267U

CN220283267U - Combined hanging beam

Info

Publication number: CN220283267U
Application number: CN202321598395.0U
Authority: CN
Inventors: 黄东; 吴小奋
Original assignee: Guangzhou China Shipbuilding Dennis Marine Equipment Co ltd
Current assignee: Guangzhou China Shipbuilding Dennis Marine Equipment Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-01-02
Anticipated expiration: 2033-06-21

Abstract

The utility model provides a combined hanging beam, which comprises more than two long hanging beam bodies, rope skipping prevention devices and movable bolts, wherein protruding parts are arranged at two ends of the top of each long hanging beam body, each protruding part is upwards protruded, each movable bolt comprises a pin shaft and bolt sleeves arranged at two sides of each pin shaft, through holes matched with the corresponding pin shafts are formed in each long hanging beam body, the through holes are arranged on two side surfaces of each long hanging beam body side by side along the length direction of each long hanging beam body, more than one through hole with the same axis is formed in each protruding part along the through hole direction of each long hanging beam body, a rest is arranged at one side of each protruding part at the lower end of each through hole, each pin shaft penetrates through each through the corresponding through hole, and each bolt sleeve is detachably sleeved at two ends of each pin shaft through each bolt, so that the two long hanging beam bodies are locked and combined into a whole; the structure has good bearing performance and good cargo lifting performance in the process of lifting extra-large cargoes.

Description

Combined hanging beam

Technical Field

The utility model relates to the technical field of lifting appliances, in particular to a combined lifting beam.

Background

The hoist wide application is in industrial and mining enterprises, harbour pier, station warehouse, building site, ocean development, various industrial parts such as universe navigation, in large-scale industry, no matter be boats and ships, still other large-scale industrial products, often can use the hanging beam to lift by crane and shift the heavy object, because the heavy object volume is bigger, the hoisting point distributes relatively far away, must borrow the hanging beam during hoist and mount, because segmentation in the large-scale industry, the segmentation type is various, the volume is great, for convenient hoist and mount, usually adopt long hanging beam of large-span to satisfy the hoist requirement, for example chinese patent application number is 201720907297.9, the bulletin day is 2018.02.02, it discloses a hoist, including the hanging beam with install the hanging rope at hanging beam both ends, the middle part of hanging beam is equipped with the hanging hole that is used for connecting the reel lifting hook, the hanging hole bilateral symmetry equipartition has the baffle, form the draw-in groove between the adjacent baffle, two hanging ropes are installed respectively in symmetrical draw-in the draw-in groove, the bottom of two hanging ropes all is connected with the couple, install the rope in symmetrical draw-in the draw-in groove respectively, just so increase the lifting rope's radius, the bending radius, the rope has been used for the hoist has been increased, the life is convenient, the hoist has been reduced, the hoist has been used for the life is convenient in the big and has been adjusted the hanging rope, and has been used the life to have been reduced the life in the big and has been used the life easy to have been used in the big and has been reduced.

However, this structure cannot be used for assembling two or more long hanging beams, and when a large heavy load is hung, the load-bearing capacity of a single hanging beam main body is poor, and if two or more long hanging beams are installed in parallel, the whole hung load is affected because no fixed installation is performed between the two long hanging beams, and thus one of the long hanging beams is affected by the outside.

Disclosure of Invention

The utility model aims to provide a combined hanging beam which has good bearing performance and good goods hanging performance in the process of hanging extra-large goods.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a merge formula hanging beam, includes more than two long hanging beam main parts, prevents rope skipping device and movable bolt, and the top both ends of long hanging beam main part are equipped with the bulge, and the bulge upwards bulges and sets up, and movable bolt includes round pin axle and sets up the bolt cover in the round pin axle both sides, be provided with on the long hanging beam main part with round pin axle assorted through-hole, the through-hole is followed long hanging beam main part's length direction sets up side by side on the both sides face of long hanging beam main part, be equipped with the via hole of more than one coaxial on the bulge along long hanging beam main part's the through-hole direction, one side of bulge is located the lower extreme of via hole and is provided with the rest stand, and the round pin axle passes the through-hole, and the bolt cover cup joints respectively at the both ends of round pin axle through bolt detachably, makes two long hanging beam main parts lock merge and form an organic whole.

Above setting, set up the through-hole side by side in the middle part of long hanging beam main part, set up the pipe simultaneously and pass the through-hole at long hanging beam main part top both ends, make the through-hole between two long hanging beam main parts correspond the alignment intercommunication, make preliminary alignment between two long hanging beam main parts, then make the round pin axle pass the through-hole and cup joint the both ends at the round pin axle respectively with the bolt cover through bolt detachably, further finely tune two long hanging beam main parts and align once more, ensure that two long hanging beam main parts lock and merge into an organic whole, in the hoist and mount extra-large goods in-process, make a plurality of long hanging beam bearing properties of merger good, can also adjust wire rope's winding position in long hanging beam main part in the time of can dismantling and moving movable bolt to different through-holes realization simultaneously, ensure the stability of being hung and getting goods.

Further, the rest comprises a first connecting plate, a second connecting plate and a third connecting plate, one end of the first connecting plate, one end of the second connecting plate and one end of the third connecting plate are connected, the first connecting plate and the third connecting plate are obliquely arranged, the second connecting plate and the third connecting plate are obliquely arranged, the third connecting plate and the top surface of the long hanging beam main body are vertically arranged, the first connecting plate and the second connecting plate form a rest space, and the other end of the first connecting plate and the other end of the second connecting plate extend to two sides of the through hole.

Above setting, first connecting plate, second connecting plate and the third connecting plate that link to each other through three one end for the rest forms the Y font, thereby before putting into the via hole with the pipe, can support the one end of pipe, thereby make in the pipe inserts the via hole more easily, make the preliminary alignment of two long hanging beam main parts more accurate reliable.

Further, the one end that the bolt cover is close to long hanging beam main part is provided with spacing portion, and the outside lateral wall of spacing portion is outwards protruding to be set up from the outside lateral wall of bolt cover, and in the round pin axle was worn to insert by the other end of spacing portion, the both sides of the up end of long hanging beam main part all were equipped with the lug more than two, and detachable prevents rope skipping device passes through the locking piece and installs on the lug.

The device is characterized in that the pin shaft is inserted into the pin shaft through the pin shaft, the pin shaft can be locked, the lifting lugs are arranged on two sides of the upper end face of the long hanging beam main body, and the rope skipping prevention device can be arranged on the lifting lugs through the bolts, so that when the steel wire rope bypasses the long hanging beam main body to be placed down and lifted, the dislocation movement of the steel wire rope can be limited, and the steel wire rope is prevented from jumping out from the combined long hanging beam.

Further, be provided with more than two first bolt holes along the length direction of bolt cover on the bolt cover lateral wall, be provided with more than two second bolt holes on the round pin axle lateral wall with first bolt hole corresponds the position, keep away from be provided with the bolt in the first bolt hole and the second bolt hole of long hanging beam main part one side, the other end of bolt is provided with detachable locking device, is provided with the wiring portion between first bolt hole and the spacing portion on the bolt cover.

The fixing device is characterized in that the pins are arranged at the two ends of the pin shaft through the first pin hole and the second pin hole, then the two ends are sleeved with the pin sleeves, the pins are inserted into the first pin hole of the pin sleeves and the second pin hole of the pin shaft, and the locking device is arranged at the other end of the pin shaft, so that the fixing device is fixed, the pin shaft inserted into the hanging beam is limited through the limiting part arranged at the inner side of the pin shaft, the pin shaft can be better fixed in the hanging beam, when the winding position of the steel wire rope on the hanging beam needs to be adjusted, the locking device is only required to be moved out of the pins, the limiting part and the pins are respectively pulled out of the first pin hole and the second pin hole, then the pin shaft of the movable pin is inserted into the through hole of the hanging beam, and the limiting part and the pins are installed on the movable pin shaft again, so that the fixing device is convenient to operate and simple in structure.

Further, the quantity of spacing portion sets up to more than 2, and two spacing portions set up in the one end of bolt cover, and spacing portion is the cylinder structure of establishing outward from the lateral wall of bolt cover, the corresponding position department of long hanging beam main part and spacing portion is provided with first spacing portion, and first spacing portion includes two stopper that establish outward, forms the spacing groove between two stoppers, and spacing position is located in the spacing groove.

The limiting part is moved into the limiting groove to limit the pin shaft to penetrate into the long hanging beam main body and then move in the axial direction, the pin sleeve can be limited in the circumferential direction, and the structure stability is better.

Further, the rope winding part comprises two fixing blocks which are outwards protruded along the bolt sleeve, the two fixing blocks are symmetrically arranged on two sides of the bolt sleeve, the two fixing blocks are outwards protruded along the length direction of the long hanging beam main body, and the straight line where the two fixing blocks are located is perpendicular to the straight line where the bolt central shaft is located.

The fixing block is arranged in a protruding mode along the length direction of the long hanging beam main body, and is perpendicular to the arrangement direction of the pin shaft, so that the rope can be wound along the direction of the long hanging beam main body, and meanwhile, the effect of the arrangement of the fixing block on the insertion of the pin shaft can be prevented.

Further, the length of the movable bolt is larger than the width of the combined and integrated long hanging beam main body.

Above setting, be convenient for pass the through-hole after the activity bolt, be convenient for fix the activity bolt on long hanging beam main part through bolt and spacing portion, make things convenient for wire rope winding at the both ends of activity bolt simultaneously.

Further, the bolt comprises a main body, one end of the main body is provided with a baffle, the other end of the main body is provided with a first through hole, the locking device is a plug-in column, and the plug-in column is inserted into the first through hole; the cross section of the fixed block is semicircular, and the pin shaft and the bolt sleeve are of hollow cylinder structures.

The bolt with the T-shaped section is arranged, the other end of the bolt is inserted through the plug-in column to fix the bolt, and the bolt can be conveniently detached and installed; one end of the fixing block is round, and the other end of the fixing block is plane, so that friction between the steel wire rope and the rope winding part can be increased through the plane, and the steel wire rope is prevented from easily sliding out of the rope winding part.

Further, two sides of the upper end face of the long hanging beam main body are provided with more than two lifting lugs, the detachable rope skipping prevention device is arranged on the lifting lugs through locking pieces, the rope skipping prevention device is provided with more than two lifting lugs and comprises a base, the base is arranged on the upper end faces of the two long hanging beam main bodies in parallel, the base is provided with more than one group of blocking components, each blocking component comprises a first blocking piece and a second blocking piece, the first blocking piece is arranged on one side of the base, the second blocking piece is arranged on the other side of the base, each blocking component further comprises a third blocking piece, and the third blocking piece is arranged above the first blocking piece and the second blocking piece and is detachably connected with the first blocking piece and the second blocking piece; and a limiting cavity is formed among the first blocking piece, the second blocking piece and the third blocking piece and is used for accommodating the steel wire rope.

The steel wire rope is transversely limited through the first blocking piece and the second blocking piece, and is longitudinally limited through the third blocking piece, so that the steel wire rope is accommodated in the limiting cavity; when the hanging beam is fluctuated along with the ship at sea, the steel wire rope cannot be separated from the limiting cavity, and the connection position of the steel wire rope and the hanging beam is prevented from being changed. Meanwhile, the third blocking piece is detachably connected with the first blocking piece and the second blocking piece, so that the steel wire rope can be conveniently installed.

Further, the third blocking piece comprises a first connecting piece, a second connecting piece and a limiting piece, wherein the first connecting piece is connected with one end of the limiting piece and hinged with the first blocking piece; the second connecting piece is connected with the other end of the limiting piece and hinged with the second blocking piece; the first blocking piece is provided with a first connecting hole, and the second blocking piece is provided with a second connecting hole; the first connecting piece is provided with a first perforation, the second connecting piece is provided with a second perforation, the first connecting hole is correspondingly arranged with the first perforation, and the locking piece penetrates through the first perforation to be connected with the first connecting hole; the second connecting hole is arranged corresponding to the second perforation, and the locking piece penetrates through the second perforation to be connected with the second connecting hole.

The movable connection between the first connecting piece and the first blocking piece is realized by matching the locking piece with the first through hole and the first connecting hole; the locking piece is matched with the second through hole and the second connecting hole, so that the movable connection between the second connecting piece and the second blocking piece is realized.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is a schematic overall structure of the present utility model.

Fig. 5 is an enlarged view at B in fig. 4.

Fig. 6 is a schematic perspective view of the rope skipping prevention device in the present utility model.

Fig. 7 is a side view of the rope skipping prevention means of the present utility model.

Fig. 8 is a schematic perspective view of a third blocking member according to the present utility model.

Fig. 9 is a front view of a first blocking member of the present utility model.

Fig. 10 is a front view of the movable plug in the present utility model.

Fig. 11 is a cross-sectional view A-A of fig. 10.

Fig. 12 is a side view of a movable plug in accordance with the present utility model.

Fig. 13 is a top view of a movable plug in accordance with the present utility model.

Fig. 14 is an enlarged view of fig. 4 at C.

Fig. 15 is an enlarged view of D in fig. 4.

Detailed Description

Examples of the present utility model will be described in further detail below with reference to the drawings and detailed description.

As shown in fig. 1 to 15, the embodiment of the present utility model provides a combined hanging beam, which comprises two long hanging beam bodies 2a, a rope skipping preventing device and a movable bolt 2, wherein two ends of the top of each long hanging beam body 2a are provided with a protruding part 20a, the protruding part 20a protrudes upwards, two coaxial through holes 21a arranged along the through hole direction of each long hanging beam body 2a are arranged on the protruding part 20a, a rest is arranged at the lower end of each through hole 21a and positioned at one side of each protruding part 20a, each rest comprises a first connecting plate 11a, a second connecting plate 12a and a third connecting plate 13a, one end of each first connecting plate 11a, one end of each second connecting plate 12a and one end of each third connecting plate 13a are connected, the first connecting plate 11a and the third connecting plate 13a are obliquely arranged, the second connecting plate 12a and the third connecting plate 13a are obliquely arranged, the third connecting plate 13a is perpendicular to the top surface of the long hanging beam main body 2a, a rest space is formed by the first connecting plate 11a and the second connecting plate 12a, the other end of the first connecting plate 11a and the other end of the second connecting plate 12a extend to two sides of the through hole 21a, and before a round pipe (not marked in the figure) is placed into the through hole 21a, one end of the round pipe (not marked in the figure) can be supported, so that the round pipe (not marked in the figure) is easier to insert into the through hole 21a, and the preliminary alignment of the two long hanging beam main bodies 2a is more accurate and reliable; in this embodiment, the number of the movable bolts 2 is 6, the number of the rope skipping preventing devices is 4, wherein the movable bolts 2 comprise a pin shaft a1 and bolt sleeves a2 arranged at two sides of the pin shaft a1, through holes 11 matched with the pin shaft a1 are arranged on the long hanging beam main body 2a, the through holes 11 are arranged in the middle of the long hanging beam main body 2a side by side along the length direction of the long hanging beam main body 2a, in this embodiment, the number of the through holes 11 is 16, when the rope skipping preventing device is installed, a round tube (not shown in the drawing) passes through the through holes 21a at one end of the long hanging beam main body 2a, the position of the round tube (not shown in the drawing) passes through the through holes 21a at the other end of the long hanging beam main body 2a, the through holes between the two long hanging beam main bodies 2a correspondingly align and communicate, the pin shaft a1 passes through the through holes, the bolt sleeve a2 is detachably sleeved at two ends of the pin shaft a1 respectively through the bolt a4, so that two long hanging beam main bodies 2a are locked and combined to form a whole, the length of the movable bolt 2 is larger than the width of the two long hanging beam main bodies 2a after being combined to form a whole, one end of the bolt sleeve a2, which is close to the long hanging beam main bodies 2a, is provided with a limiting part a3, one end of the limiting part a3 protrudes outwards from the outer side wall of the bolt sleeve a2, the other end of the limiting part a3 is inserted into the pin shaft a2, more than two first bolt holes a21 are arranged on the bolt sleeve a2 along the length direction of the bolt sleeve a2, more than two second bolt holes a11 are arranged on the outer side wall of the pin shaft a1, which correspond to the first bolt holes a21, the first bolt holes a21 and the second bolt holes a11 which are far away from one side of the long hanging beam main bodies 2a are internally provided with bolts a4, and the other end of the bolt a4 is provided with a detachable locking device a5, a rope winding part a6 is arranged on the bolt sleeve a2 between the first bolt hole a21 and the limiting part a3, and in the embodiment, the locking device a5 is arranged as a plug-in post.

In this embodiment, the length of the movable bolt 2 is greater than the width of the two long hanging beam bodies 2a after being combined to form a whole, so that after the movable bolt passes through the through hole, the movable bolt is conveniently fixed on the long hanging beam bodies through the bolt and the limiting part, and meanwhile, the steel wire rope is conveniently wound at two ends of the movable bolt.

As shown in fig. 10 and 11, the rope winding portion a6 includes two fixing blocks a61 protruding outwards along the bolt housing a2, the two fixing blocks a61 are symmetrically disposed on both sides of the bolt housing a2, and the two fixing blocks a61 protruding outwards along the length direction of the long hanging beam body 2a, the straight line where the two fixing blocks a61 are located is perpendicular to the straight line where the central axis of the bolt a4 is located, in this embodiment, the fixing blocks a61 are integrally disposed with the bolt housing a2, since the fixing blocks a61 protrude along the length direction of the long hanging beam body 2a, and the fixing blocks a61 are perpendicular to the disposing direction of the bolt a4, not only can rope winding along the length direction of the long hanging beam body 2a, but also the effect of the disposition of the fixing blocks a61 on the insertion of the pin a1 can be prevented. In this embodiment, the cross section of the fixing block a61 is semicircular, and the pin shaft a1 and the pin sleeve a2 are of hollow cylinder structures, so that one end of the fixing block a61 is circular, and the other end of the fixing block is plane, thereby increasing friction between the steel wire rope and the rope winding part a6 through the plane and preventing the steel wire rope from easily sliding out of the rope winding part.

As shown in fig. 10 and 11, the plug a4 includes a main body a12, one end of the main body a12 is provided with a baffle a13, the other end of the main body a12 is provided with a first through hole a14, and the plug post is inserted into the first through hole a14, in one embodiment, the plug post is a flexible plug post, after the plug post is inserted, the plug post is wound at two ends of the plug post to achieve fixation, in other embodiments, the plug post may also be a screw with threads, a screw corresponding to the threads is provided in the first through hole a14, and detachable connection is achieved through the screw and the first through hole a 14. In this embodiment, the cross section of bolt a1 sets up to T shape, and the other end inserts through the spliced pole and realizes fixing to the bolt, and also can conveniently dismantle and install.

In this embodiment, the number of setting up spacing portion a3 in the movable bolt is 2, and two spacing portion a3 set up in the one end of bolt cover a2, and spacing portion a3 is the cylinder structure that outwards installs from the lateral wall of bolt cover a2, and the corresponding position department of long hanging beam main part 2a and spacing portion a3 is provided with first spacing portion a01, and first spacing portion a01 includes two stopper a011 that outwards install outwards, forms spacing groove a012 between two stopper a011, and spacing portion a3 is located spacing groove a 012.

The pin sleeve a2 can be sleeved into the pin shaft a1 to be locked by moving the limiting part a3 into the limiting groove a012, and the pin sleeve a2 can be limited in the circumferential direction, so that the structural stability is better.

As shown in fig. 4, two sides of the upper end surface of the long hanging beam main body 2a are provided with more than two lifting lugs 1, the rope skipping prevention device is detachably mounted on the lifting lugs 1 through locking pieces, in this embodiment, as shown in fig. 5-9, the rope skipping prevention device comprises a base 1a, the base 1a is arranged on the upper end surface of the long hanging beam main body 2a in parallel, more than one group of blocking components 3a are arranged on the base 1a, the blocking components 3a comprise a first blocking piece 31a, a second blocking piece 32a and a third blocking piece 33a, the first blocking piece 31a is arranged on one side of the base 1a, the second blocking piece 32a is arranged on the other side of the base 1a, and the third blocking piece 33a is arranged above the first blocking piece 31a and the second blocking piece 32a and is detachably connected with the first blocking piece 31a and the second blocking piece 32 a; a limiting chamber 34a is formed between the first, second and third stoppers 31a, 32a and 33a, and the limiting chamber 34a is used for accommodating the wire rope 5a.

The first blocking piece 31a and the second blocking piece 32a are used for transversely limiting the steel wire rope 5a, and the third blocking piece 33a is used for longitudinally limiting the steel wire rope 5a, so that the steel wire rope 5a is accommodated in the limiting cavity 34 a; when the long hanging beam main body 2a is fluctuated along with the ship at sea, the steel wire rope 5a cannot be separated from the limiting cavity 34a, and the connection position of the steel wire rope 5a and the long hanging beam main body 2a is prevented from being changed. Meanwhile, the third blocking piece 33a is detachably connected with the first blocking piece 31a and the second blocking piece 32a, so that the steel wire rope 5a is convenient to install.

In this embodiment, two bases 1a are provided in one rope skipping preventing device, two sets of blocking components 3a are provided on each base 1a, and one set of blocking components 3a is provided at one end of the base 1 a; another set of blocking assemblies 3a is provided at the other end of the base 1 a; two third stoppers 33a near the same end of the two bases 1a are integrally provided.

The third blocking member 33a includes a first connecting member 331a, a second connecting member 332a, and a limiting member 333a, where the first connecting member 331a is connected to one end of the limiting member 333a and hinged to the first blocking member 31 a; the second connecting member 332a is connected to the other end of the stopper 333a and hinged to the second blocking member 32 a. The connecting structure is simple.

The first blocking member 31a is provided with a first coupling hole 311a, and the second blocking member 32a is provided with a second coupling hole (not shown in the drawings); the first connecting piece 331a is provided with a first through hole 334a, the second connecting piece 332a is provided with a second through hole 335a, the first connecting hole 311a is arranged corresponding to the first through hole 334a, and the locking piece 4a passes through the first through hole 334a to be connected with the first connecting hole 311 a; the second connecting hole is disposed corresponding to the second through hole 335a, and the locking member 4a passes through the second through hole 335a to connect with the second connecting hole. The first connecting piece 331a is movably connected with the first blocking piece 31a by matching the locking piece 4a with the first through hole 334a and the first connecting hole 311 a; the second connector 332a is movably connected with the second blocking member 32a by the locking member 4a cooperating with the second through hole 335a and the second connecting hole.

In this embodiment, the first connecting hole 311a and the second connecting hole are threaded holes, and the locking member 4a is a bolt. The connecting structure is simple and convenient to detach.

In the present embodiment, along the length direction of the base 1a, the width L2 of the end of the first blocking member 31a near the base 1a is greater than the width L1 of the end of the first blocking member 31a far from the base 1 a; the width of the end of the second blocking member 32a near the base 1a is larger than the width of the end of the second blocking member 32a far from the base 1 a. The contact area between the first stopper 31a and the base 1a is increased so that the first stopper 31a is stably provided on the base 1 a. The contact area between the second stopper 32a and the base 1a is increased so that the second stopper 32a is stably provided on the base 1 a.

The working principle of the utility model is as follows: one end of a round tube (not shown in the drawing) is placed on the shelf, one round tube (not shown in the drawing) penetrates through the through hole 21a at one end of the long hanging beam main body 2a, the position is adjusted to penetrate through the through hole 21a at one end of the other long hanging beam main body 2a, the other round tube (not shown in the drawing) penetrates through the through hole 21a at the other end of the long hanging beam main body 2a, the position is adjusted to penetrate through the through hole 21a at the other end of the other long hanging beam main body 2a, through holes between the two long hanging beam main bodies 2a are correspondingly aligned and communicated, the two long hanging beam main bodies 2a are primarily aligned, the pin shaft a1 penetrates through the through holes, the pin sleeve a2 is detachably sleeved at two ends of the pin shaft a1 respectively, fine adjustment is further carried out on the two long hanging beam main bodies 2a, the two long hanging beam main bodies 2a are enabled to be locked and combined to form a whole, and the stability of the hung goods is enabled to be good in the process of hanging the special big goods.

Claims

1. The utility model provides a merge formula hanging beam which characterized in that: the long hanging beam comprises more than two long hanging beam bodies, rope skipping prevention devices and movable bolts, wherein protruding parts are arranged at two ends of the top of each long hanging beam body and protrude upwards, more than one through hole with the same axis is formed in each protruding part, each movable bolt comprises a pin shaft and bolt sleeves arranged at two sides of each pin shaft, through holes matched with the corresponding pin shafts are formed in the long hanging beam bodies in the length direction, the through holes are formed in the two side faces of the long hanging beam bodies side by side, more than one through hole with the same axis is formed in each protruding part in the through hole arrangement direction of the long hanging beam bodies, a shelf is arranged at one side of each protruding part, the lower ends of the through holes are provided with the corresponding pin shafts, the pin shafts penetrate through the through holes, and the bolt sleeves are detachably sleeved at two ends of the pin shafts respectively, so that the two long hanging beam bodies are locked and combined to form a whole.

2. A composite lifting beam as claimed in claim 1, wherein: the rest comprises a first connecting plate, a second connecting plate and a third connecting plate, wherein one end of the first connecting plate, one end of the second connecting plate and one end of the third connecting plate are connected, the first connecting plate and the third connecting plate are obliquely arranged, the second connecting plate and the third connecting plate are obliquely arranged, the third connecting plate and the top surface of the long hanging beam main body are vertically arranged, the first connecting plate and the second connecting plate form a rest space, and the other end of the first connecting plate and the other end of the second connecting plate extend to two sides of the through hole.

3. A composite lifting beam as claimed in claim 1, wherein: more than two first bolt holes are formed in the outer side wall of the bolt sleeve along the length direction of the bolt sleeve, more than two second bolt holes are formed in positions, corresponding to the first bolt holes, of the outer side wall of the pin shaft, bolts are arranged in the first bolt holes and the second bolt holes, far away from one side of the long hanging beam main body, detachable locking devices are arranged at the other ends of the bolts, and rope winding parts are arranged between the first bolt holes and the limiting parts of the bolt sleeve.

4. A composite lifting beam as claimed in claim 3, wherein: the quantity of spacing portion sets up to more than 2, and two spacing portions set up in the one end of bolt cover, and spacing portion is the cylinder structure of establishing from the lateral wall of bolt cover to the evagination, the corresponding position department of long hanging beam main part and spacing portion is provided with first spacing portion, and first spacing portion includes two stopper of establishing to the evagination, forms the spacing groove between two stoppers, and spacing position is located in the spacing groove.

5. A composite lifting beam as claimed in claim 3, wherein: the rope winding part comprises two fixing blocks which are outwards protruded along the bolt sleeve, the two fixing blocks are symmetrically arranged on two sides of the bolt sleeve, the two fixing blocks are outwards protruded along the length direction of the long hanging beam main body, and the straight line where the two fixing blocks are located is perpendicular to the straight line where the central axis of the bolt is located.

6. A composite lifting beam as claimed in claim 1, wherein: the length of the movable bolt is larger than the width of the combined and integrated long hanging beam main body.

7. A composite lifting beam as claimed in claim 3, wherein: the bolt comprises a main body, one end of the main body is provided with a baffle, the other end of the main body is provided with a first through hole, the locking device is a plug-in column, and the plug-in column is inserted into the first through hole; the cross section of the fixed block is semicircular, and the pin shaft and the bolt sleeve are of hollow cylinder structures.

8. A composite lifting beam as claimed in claim 1, wherein: two sides of the upper end face of the long hanging beam main body are provided with more than two lifting lugs, and the detachable rope skipping prevention device is arranged on the lifting lugs through locking pieces.

9. A composite lifting beam as claimed in claim 1, wherein: the rope skipping prevention device is provided with more than two devices and comprises a base, the base is arranged on the upper end surfaces of two long hanging beam main bodies in parallel, more than one group of blocking components are arranged on the base, each blocking component comprises a first blocking piece and a second blocking piece, the first blocking piece is arranged on one side of the base, the second blocking piece is arranged on the other side of the base, each blocking component further comprises a third blocking piece, and the third blocking piece is arranged above the first blocking piece and the second blocking piece and is detachably connected with the first blocking piece and the second blocking piece; and a limiting cavity is formed among the first blocking piece, the second blocking piece and the third blocking piece and is used for accommodating the steel wire rope.

10. A composite lifting beam as claimed in claim 9, wherein: the third blocking piece comprises a first connecting piece, a second connecting piece and a limiting piece, wherein the first connecting piece is connected with one end of the limiting piece and hinged with the first blocking piece; the second connecting piece is connected with the other end of the limiting piece and hinged with the second blocking piece; the first blocking piece is provided with a first connecting hole, and the second blocking piece is provided with a second connecting hole; the first connecting piece is provided with a first perforation, the second connecting piece is provided with a second perforation, the first connecting hole is correspondingly arranged with the first perforation, and the locking piece penetrates through the first perforation to be connected with the first connecting hole; the second connecting hole is arranged corresponding to the second perforation, and the locking piece penetrates through the second perforation to be connected with the second connecting hole.