CN114735586A

CN114735586A - Equipment hoisting device and method in limited space

Info

Publication number: CN114735586A
Application number: CN202210569943.0A
Authority: CN
Inventors: 李英杰; 周少帅; 贺鑫; 张建伟; 陈姚伟
Original assignee: Foguang Equipment Manufacturing Luoyang Co ltd; Zhengzhou Foguang Power Generation Equipment Co Ltd
Current assignee: Foguang Equipment Manufacturing Luoyang Co ltd; Zhengzhou Foguang Power Generation Equipment Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-07-12

Abstract

The invention discloses a device hoisting device in a limited space and a hoisting method, wherein the hoisting device comprises a folding suspension, lifting support legs and sliding assemblies, the lifting support legs are supported below the folding suspension, the folding suspension comprises a main beam and a plurality of groups of cantilevers, the plurality of groups of cantilevers are distributed along the length direction of the main beam, each group of cantilevers comprises cantilevers symmetrically distributed on two sides of the main beam, one end of each cantilever is rotatably connected with the main beam, the other end of each cantilever is detachably connected with the lifting support leg, each cantilever comprises a first state perpendicular to the main beam and a second state parallel to the main beam, a hook is fixed below the main beam and/or each cantilever, and the sliding assemblies are used for bearing equipment and enabling the equipment to slide relative to the space where the sliding assemblies are located. The invention reduces the influence of the installation process of heavy and large-scale equipment on the space assembly process, avoids the damage of the installation process to the bottom plate, is convenient for accurately adjusting the installation position of the equipment, reduces the labor intensity and improves the operation safety and the operation efficiency.

Description

Equipment hoisting device and method in limited space

Technical Field

The invention relates to the technical field of machine manufacturing, in particular to a device hoisting device and a hoisting method in a limited space.

Background

Heavy and large equipment is installed in a limited space such as a military shelter, and existing hoisting equipment such as a travelling crane and a crane cannot enter to carry out operation due to the space limitation. For example, when heavy and large equipment is installed in the shelter, the heavy and large equipment is usually installed before the main structure of the shelter is completely assembled, the equipment is hoisted to a preassembly position by using a crane or a crane, and the subsequent main structure assembly is performed after the equipment hoisting is finished. The installation mode has lower production efficiency.

The equipment with small weight and large volume is transported, the rolling bar can be paved on the bottom plate in the shelter, the rolling bar enters from the hole under the manual or mechanical thrust, and the position of the equipment is adjusted to a preset installation point by the crow bar. The method is easy to damage the bottom plate or the cabin body, and can cause personal injury in serious cases. And after the equipment enters the limited space, the mounting position can not be accurately adjusted by using hoisting equipment such as a crane and the like, so that the working strength is increased.

Disclosure of Invention

Aiming at the defects of the prior art, the invention innovatively provides a device and a method for hoisting equipment in a limited space, which reduce the influence of the installation process of heavy and large-scale equipment on the space assembly process, avoid the damage of the installation process on a bottom plate, facilitate the accurate adjustment of the installation position of the equipment, reduce the labor intensity and improve the operation safety and the operation efficiency.

In order to achieve the technical purpose, the invention discloses a device lifting device in a limited space, which comprises a folding suspension, lifting support legs and a sliding assembly, wherein the lifting support legs are supported below the folding suspension, the folding suspension comprises a main beam and a plurality of groups of cantilevers, the plurality of groups of cantilevers are distributed along the length direction of the main beam, each group of cantilevers comprises cantilevers symmetrically distributed on two sides of the main beam, one ends of the cantilevers are rotatably connected with the main beam, the other ends of the cantilevers are detachably connected with the lifting support legs, the cantilevers comprise a first state perpendicular to the main beam and a second state parallel to the main beam, hooks are fixed below the main beam and/or the cantilevers, and the sliding assembly is used for bearing devices and enabling the devices to slide relative to the space where the devices are located.

Further, still include the cantilever support, the cantilever support vertical fixation is in on the girder, the cantilever with the cantilever support rotates to be connected, the cantilever is in the cantilever support with rotate between the girder.

Furthermore, a lock nose hole is formed in the cantilever support, a lock nose corresponding to the lock nose hole is fixed on the cantilever, and the lock nose is inserted into the lock nose hole to lock the first state of the cantilever.

Further, a fastener is included for fastening the boom and the main beam when the boom is in the second state.

Further, the sliding assembly comprises a frame, a carrier roller and a fastening device, wherein a plurality of carrier rollers are fixed on the frame in parallel, the lowest point of each carrier roller is higher than the bottom of the frame, the highest point of each carrier roller is higher than the top of the frame, the carrier rollers are rotatably connected with the frame, and the fastening device is used for fixing the carrier rollers on the frame and adjusting the rotation resistance of the carrier rollers.

Further, a clamping groove used for clamping the end part of the carrier roller is formed in the top of the frame, the fastening device is fixed above the clamping groove and comprises a fastening frame, a fastening bolt and a damping piece, the fastening frame is in an inverted U shape and is fixed above the clamping groove, the damping piece is arranged above the end part of the carrier roller and below the fastening frame, a threaded hole is formed in the top of the fastening frame, and the end part of the threaded hole screwed by the fastening bolt is abutted to the damping piece.

Further, the damping piece is a rubber block or a silica gel block, and a groove matched with the shape of the end part of the carrier roller is formed in the bottom of the damping piece.

In order to achieve the technical purpose, the invention discloses a method for hoisting equipment in a limited space by using the device hoisting device in the limited space, which is characterized by comprising the following steps:

placing lifting support legs on a bottom plate of a limited space;

the cantilever and the main beam in the second state enter the limited space through the entrance of the limited space;

unfolding the cantilever to enable the cantilever to be perpendicular to the main beam and to be in a first state;

the lifting support legs are fixed below the suspension beam, and the lifting support legs are lifted until the main beam is contacted with the top plate of the limited space;

according to the size of the equipment, one or more sliding components are laid on the moving path of the equipment in the limited space;

moving the equipment to the limited space inlet, placing the equipment on the sliding assembly, pushing the equipment to move on the sliding assembly, and pushing the equipment to the installation position;

the hanging piece is hung at the main beam or the cantilever hook, the equipment is lifted, and the sliding component is moved out;

adjusting the position of the equipment, enabling the equipment to fall on a bottom plate of the limited space, and taking down the hanging piece;

and separating the lifting support leg from the cantilever, rotating the cantilever to enable the cantilever to be parallel to the main beam, and moving the main beam, the cantilever in the second state and the lifting support leg out of the limited space.

Further, the method comprises the step that when the cantilever is in the second state, the tether fastens the cantilever and the main beam.

Further, the cantilever is in a first state, and the lock nose is inserted into the lock nose hole to lock the cantilever in the first state.

The invention has the beneficial effects that:

the device hoisting device and the hoisting method for the equipment in the limited space can reduce the influence of the installation process of heavy and large-scale equipment on the space assembly process, avoid the damage of the installation process on the bottom plate, facilitate the accurate adjustment of the installation position of the equipment, reduce the labor intensity and improve the operation safety and the operation efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an apparatus lifting device in a confined space according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a folding suspension with the suspension arms in a second state according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a cantilever according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a slide assembly of an embodiment of the present invention;

fig. 5 is a schematic diagram of the device hoisting apparatus in a restricted space hoisting and mounting a device in the restricted space according to the embodiment of the present invention.

In the figure, the position of the upper end of the main shaft,

1. folding the suspension; 11. a main beam; 12. a cantilever; 13. a cantilever support; 14. a sleeve; 15. locking the nostril; 16. locking the nose; 2. lifting support legs; 21. a lifting rod; 22. a power mechanism; 23. a base; 3. a sliding assembly; 31. a frame; 32. carrying rollers; 33. a fastening device; 331. a fastening frame; 332. fastening a bolt; 333. a damping member; 34. a card slot; 4. hooking; 5. a forklift hole; 6. a slot; 7. a plug-in locking piece; 8. equipment; 9. a square cabin.

Detailed Description

The device lifting device and the lifting method for the equipment in the limited space provided by the invention are explained and explained in detail below with reference to the attached drawings of the specification.

The embodiment specifically discloses a device lifting device in a limited space, as shown in fig. 1, the device lifting device comprises a folding suspension 1, lifting legs 2 and a sliding assembly 3, wherein the lifting legs 2 are supported below the folding suspension 1, and the height of the folding suspension 1 is adjusted by the lifting of the lifting legs 2. Folding suspension 1 includes girder 11 and multiunit cantilever, and the multiunit cantilever distributes along the length direction of girder 11, and the certain distance is separated between two sets of adjacent cantilevers, and every group cantilever includes the cantilever 12 of symmetric distribution at girder 11 both sides, and the one end of cantilever 12 is rotated with girder 11 and is connected, and the other end and the lift landing leg 2 of cantilever 12 can be dismantled and be connected, and cantilever 12 includes the first state of perpendicular to girder 11 and the second state that is on a parallel with girder 11. As shown in fig. 2, when the suspension arm 12 is parallel to the main beam 11, the entire folding suspension 1 is in a folded state, and occupies a small space, which is convenient for the movement and installation of the folding suspension 1 in a limited space. The lifting device further comprises a fastener, and the fastener is used for fastening the cantilever 12 and the main beam 11 when the cantilever 12 is in the second state, namely when the cantilever 12 is parallel to the main beam 11, the fastener fastens the cantilever 12 and the main beam 11, so that the cantilever 12 is prevented from rotating again, and the volume of the whole folding suspension 1 is reduced. The lifting legs 2 and the cantilever 12 are detachably connected, and the whole lifting device can be conveniently moved and installed in a limited space.

The folded arrangement of the folding suspension 1 facilitates passage through smaller orifices and rapid deployment.

As shown in fig. 1 and 2, the lifting device further includes a cantilever support 13, the cantilever support 13 is vertically fixed on the main beam 11, the cantilever 12 is rotatably connected with the cantilever support 13, in this embodiment, a rotating shaft is fixed on the cantilever support 13, as shown in fig. 3, a sleeve 14 is fixed at an end of the cantilever 12, the sleeve 14 is sleeved on the rotating shaft and can rotate around the rotating shaft, so that rotation of the cantilever 12 is realized, and the cantilever 12 rotates between the cantilever support 13 and the main beam 11. The cantilever support 13 is perpendicular to the main beam 11, and limits the rotation angle of the cantilever 12, so that the cantilever 12 can rotate within the range of 90 degrees and can be switched between the first state and the second state.

As shown in fig. 2 and 3, the cantilever support 13 is provided with a locking nose 15, the cantilever 12 is fixed with a locking nose 16 corresponding to the locking nose 15, and the locking nose 16 is inserted into the locking nose 15 to lock the cantilever 12 in the first state. In this embodiment, the locking lug 16 includes a locking ring and a plug inserted into the locking ring, the locking ring is fixed on the side wall of the cantilever 12, when the cantilever 12 rotates to be perpendicular to the main beam 11, the cantilever 12 is parallel to the cantilever support 13, the locking ring is inserted into the locking hole 15, the plug is inserted into the locking ring from the side of the cantilever support 13 far away from the cantilever 12, the cantilever 12 is prevented from rotating in the opposite direction, the locking hole 15 and the locking lug 16 cooperate to lock the cantilever 12 in the first state, and the stability of the cantilever 12 and the main beam 11 is ensured.

A hook 4 is fixed below the main beam 11 and/or the cantilever 12, and the hook 4 is used for hanging a hanging piece of a hand chain block or the like for lifting the equipment 8 to be installed and is used for lifting the equipment 8.

The sliding assembly 3 is used for carrying the device 8 and enabling the device 8 to slide relative to the space in which it is located. A plurality of sliding assemblies 3 are arranged on the moving path of the equipment 8 in the space to be installed, so that the equipment 8 does not contact the bottom plate of the space to be installed, the sliding assemblies 3 only slide to realize the movement in the space to be installed, and the damage to the bottom plate is avoided.

As shown in fig. 4, the sliding assembly 3 includes a frame 31, a plurality of idlers 32 and a fastening device 33, the idlers 32 are fixed on the frame 31 in parallel, the lowest point of the idlers 32 is higher than the bottom of the frame 31, the idlers 32 are kept at a certain distance from the bottom plate of the space to be installed, the direct contact between the equipment 8 and the bottom plate is avoided, and the damage to the bottom plate caused by the transportation of the equipment 8 is reduced. The highest point of the carrier roller 32 is higher than the top of the frame 31, the carrier roller 32 is rotatably connected with the frame 31, so that the device 8 drives the carrier roller 32 to rotate while moving, the resistance for pushing the device 8 is reduced, and the fastening device 33 is used for fixing the carrier roller 32 on the frame 31 and adjusting the rotation resistance of the carrier roller 32. The heavy and large equipment 8 is placed on the surface of the sliding assembly 3, thrust is applied to the outer side of the heavy and large equipment, and the equipment 8 and the carrier roller 32 move relatively. The slide assemblies 3 may be alternately arranged as required by the size of the equipment 8 and the transport route.

The top of frame 31 is seted up and is used for the draw-in groove 34 of joint bearing roller 32 tip, fastener 33 fixes the top at draw-in groove 34, fastener 33 includes fastening frame 331, fastening bolt 332 and damping part 333, fastening frame 331 is the type of falling U, and fixes in the top of draw-in groove 34, fastening frame and frame integrated into one piece, damping part 333 is arranged in bearing roller 32 tip top, fastening frame 331 below, the top of fastening frame 331 is seted up the screw hole, the tip that fastening bolt 332 precession screw hole supports on damping part 333. The downward pressure degree can be adjusted by adjusting the screwing distance of the fastening screw to the end part of the carrier roller 32, and further the rotation resistance of the damping block to the end part of the carrier roller 32 is adjusted.

Damping part 333 is rubber block or silica gel piece, and the recess that matches with bearing roller 32 tip shape is seted up to the bottom of damping part 333, avoids the indiscriminate of damping piece when bearing roller 32 rotates, stability when guaranteeing mobile device 8.

The tip of girder 11 is equipped with fork truck hole 5, and usable fork truck removes folding suspension 1, realizes treating the business turn over of installation space, the removal and the transportation of folding suspension 1 of being convenient for.

Cantilever 12 and lift landing leg 2 are pegged graft and are cooperated, and the bottom of cantilever 12 is equipped with the slot 6 that is used for pegging graft lift landing leg 2, and lift landing leg 2 can insert cantilever 12 bottom, convenient to detach installation. The overhead hoist of this embodiment is still including being used for running through slot 6 and lift landing leg 2's grafting locking piece 7, and grafting locking piece 7 can be L type round pin axle, and after lift landing leg 2 inserted in slot 6, inserts the L type round pin axle that runs through slot 6 and lift landing leg 2, fixes cantilever 12 and lift landing leg 2 together. The lifting support legs 2 are mainly used for lifting the main beam 11 and the cantilever 12, and when the main beam 11 is in contact with the top of the limited space, a chain block can be hung on the hook 4 to provide a lifting hanging point.

In some embodiments, the lifting leg 2 comprises a lifting rod 21 and a base 23, and the base 23 is fixed at the bottom of the lifting rod 21, so that the contact area is increased, and the stress per unit area of the bottom plate of the space to be installed is reduced. The lifting rod 21 is a telescopic rod commonly used in the field, and can be conveniently moved in a limited space due to the scalability. The extension and retraction of the lifting rod 21 can be adjusted manually or by means of a power mechanism 22. As shown in fig. 1, the power mechanism 22 is fixed on the lower rod body of the lifting rod 21 for moving.

Based on the same idea, the embodiment further provides a method for hoisting equipment in a limited space by using the device hoisting device in a limited space, as shown in fig. 5, the method specifically includes the following steps:

and S1, placing lifting legs on the floor of the limited space (such as a shelter).

S2, enabling the cantilever and the main beam in the second state to enter the limited space through the entrance of the limited space by using a forklift; the cantilever and the main beam are parallel at the moment, and the cantilever and the main beam are fastened through the fastening device.

S3, unfolding the cantilever to make the cantilever perpendicular to the main beam and in a first state; the lock nose is inserted into the lock nose hole to lock the first state of the cantilever.

And S4, the lifting support legs are fixed below the suspension beams, and the lifting support legs are lifted until the main beams are in contact with the top plate of the limited space and locked.

S5, paving one or more sliding components on the moving path of the equipment in the limited space according to the size of the equipment; before laying, adjusting a fastening device 33 of the sliding assembly 3 and adjusting the rotation resistance of the carrier roller 32; the number of the sliding assemblies 3 is selected to be appropriate, so that the smooth and sufficient supporting capacity of the equipment is ensured.

S6, moving the equipment to the entrance of the limited space by using external hoisting equipment (a travelling crane and the like), placing the equipment on the sliding assembly, slowly moving the travelling crane until the equipment 8 completely enters the shelter 9, manually pushing the side part of the equipment, moving the equipment on the sliding assembly, and pushing the equipment to the installation position.

S7, hanging a hanging part (such as a chain block) at a main beam or a cantilever hook, lifting the equipment, and moving out the sliding component;

s8, adjusting the position of the equipment, falling the equipment on a bottom plate of the limited space, and taking down the hanging piece;

and S9, separating the lifting support legs from the cantilever, rotating the cantilever to enable the cantilever to be parallel to the main beam, and moving the main beam, the cantilever in the second state and the lifting support legs out of the limited space. Specifically, a forklift hole 5 in a main beam 11 is operated to expose an orifice of a square cabin 9, the main beam 11 is supported by a forklift, a lifting supporting leg 2 is detached from a cantilever 12 and separated from the cantilever 12, the cantilever 12 is rotated to enable the cantilever 12 to be parallel to the main beam 11 and is fixed by a bolt, the main beam 11 and the cantilever 12 are moved out of a limited space, and then the equipment is fixed in the limited space.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "the present embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.

Claims

1. A device lifting device in a limited space is characterized by comprising a folding suspension (1), lifting legs (2) and a sliding assembly (3),

the lifting support leg (2) is supported below the folding suspension frame (1), the folding suspension frame (1) comprises a main beam (11) and a plurality of groups of cantilevers, the plurality of groups of cantilevers are distributed along the length direction of the main beam (11), each group of cantilevers comprises cantilevers (12) symmetrically distributed on two sides of the main beam (11), one end of each cantilever (12) is rotatably connected with the main beam (11), the other end of each cantilever (12) is detachably connected with the lifting support leg (2), each cantilever (12) comprises a first state perpendicular to the main beam (11) and a second state parallel to the main beam (11), and a hook (4) is fixed below the main beam (11) and/or each cantilever (12),

the sliding assembly (3) is used for carrying the equipment (8) and enabling the equipment (8) to slide relative to the space.

2. The device hoisting device in the limited space according to claim 1, further comprising a cantilever support (13), wherein the cantilever support (13) is vertically fixed on the main beam (11), the cantilever (12) is rotatably connected with the cantilever support (13), and the cantilever (12) rotates between the cantilever support (13) and the main beam (11).

3. The device lifting and transporting device in the limited space according to claim 2, wherein the cantilever support (13) is provided with a locking nose hole (15), the cantilever (12) is fixed with a locking nose (16) corresponding to the locking nose hole (15), and the locking nose (16) is inserted into the locking nose hole (15) to lock the cantilever (12) in the first state.

4. An equipment lifting device in a confined space as claimed in any one of claims 1 to 3 further comprising a tie down for tying down the boom (12) and main beam (11) when the boom (12) is in the second condition.

5. An equipment lifting device in a confined space according to claim 1 wherein the slide assemblies (3) include a frame (31), idlers (32) and fastening means (33), a plurality of idlers (32) being fixed in parallel on the frame (31), the idlers (32) having a lowest point higher than the bottom of the frame (31), the idlers (32) having a highest point higher than the top of the frame (31), the idlers (32) being rotatably connected to the frame (31), the fastening means (33) being for fixing the idlers (32) on the frame (31) and adjusting the rotational resistance of the idlers (32).

6. The device hoisting device in the limited space according to claim 5, wherein a clamping groove (34) for clamping the end part of the carrier roller (32) is formed in the top of the frame (31), the fastening device (33) is fixed above the clamping groove (34), the fastening device (33) comprises a fastening frame (331), a fastening bolt (332) and a damping piece (333), the fastening frame (331) is in an inverted U shape and is fixed above the clamping groove (34), the damping piece (333) is arranged above the end part of the carrier roller (32) and below the fastening frame (331), a threaded hole is formed in the top of the fastening frame (331), and the end part of the threaded hole screwed in the fastening bolt (332) abuts against the damping piece (333).

7. The device lifting device for the equipment in the limited space according to claim 6, wherein the damping piece (333) is a rubber block or a silica gel block, and a groove matched with the end part of the carrier roller (32) in shape is formed at the bottom of the damping piece (333).

8. An equipment hoisting method in a confined space using the equipment hoisting device in a confined space according to any one of claims 1 to 7, characterized by comprising:

placing lifting support legs on a bottom plate of a limited space;

one or more sliding components are laid on the moving path of the equipment in the limited space according to the size of the equipment;

9. The method for hoisting the equipment in the limited space according to claim 8, further comprising the step of fastening the cantilever and the main beam by a fastening device when the cantilever is in the second state.

10. The equipment lifting method in the limited space according to claim 8, further comprising a first state that the locking nose is inserted into the locking nose hole to lock the cantilever when the cantilever is in the first state.