CN217264210U - Self-tensioning hoisting adjusting unit for lower chord cable, hoisting assembly and hoisting system - Google Patents

Abstract

The application relates to a self-tensioning hoisting adjusting unit for a lower chord cable, which comprises a connecting longitudinal beam, adjusting cantilever assemblies and top abutting assemblies, wherein the adjusting cantilever assemblies are rotatably and adjustably arranged on two sides of the connecting longitudinal beam in the length direction; any one of the adjusting cantilever groups is provided with an upper hoisting rigging, a hoisting part is arranged on any one of the adjusting cantilever components, and a bottom rope-mounting rigging is arranged between the hoisting parts of the two adjusting cantilever components; this application has improved the hoist and mount efficiency to the profile shapes. The application also relates to a hoisting assembly, which comprises a lower chord cable self-tensioning hoisting adjusting unit and a hoisting cross beam, wherein a plurality of connecting longitudinal beams are arranged in an adjustable manner along the length direction of the hoisting cross beam; the application improves the adjustment dimension of the long rod type special-shaped piece. The application also relates to a hoisting system which at least comprises two hoisting components, a hoisting main beam and a main rigging. This application has improved the hoist and mount efficiency to the different slant mounted position in coplanar greatly.

Description

Self-tensioning hoisting adjusting unit for lower chord cable, hoisting assembly and hoisting system

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a self-tensioning hoisting adjusting unit for a lower chord cable, a hoisting assembly and a hoisting system.

Background

Under the domestic double-carbon background, the demand for recyclable clean energy is strong day by day, and the construction of power plants using wind energy, water energy, tides and the like represented by the flow energy on the earth is more and more. In the construction of these power plants, it is often necessary to hoist some parts with special cross sections, such as blades of wind turbines, towers of wind turbines, and blades of water turbines.

In the related art, a rigid arm C-type or SC-type lifting appliance is often used for clamping and hoisting, and the following technical problems exist in the hoisting process:

the clamp has low universality, needs to be integrally replaced or partially replaced to meet the requirements of different sizes and shapes, and has a complex structure;

in the process of alignment installation, accurate alignment is usually ensured by manually pulling a hoist or connecting a rope body for the butt joint of the fan blade and the hub, and due to the limitation of an installation space, certain risk exists in the safety of personnel and the operation is inconvenient;

the lifting appliance in the related art is difficult to separate, most of the reasons are that the lifting appliance needs to be manually disassembled from a lifting part, and after the load is disassembled, the posture of the clamp body is changed and needs to be readjusted;

and fourthly, for the single-blade hoisting technology, the single-blade hoisting technology is horizontally aligned and installed, and the position of the hub needs to be adjusted every time the single-blade hoisting technology is installed.

In the whole hoisting operation, the whole hoisting efficiency can be greatly influenced, and a part to be improved exists.

SUMMERY OF THE UTILITY MODEL

In order to improve hoist and mount efficiency, this application provides a lower chord cable is from tensioning hoist and mount adjusting unit.

The application provides a lower chord cable self-tensioning hoisting adjusting unit adopts following technical scheme:

a self-tensioning hoisting adjusting unit for a lower chord cable comprises a connecting longitudinal beam and adjusting cantilever assemblies which are rotatably and adjustably arranged on two sides of the connecting longitudinal beam in the length direction, wherein an upper hoisting rigging is arranged at the end part, far away from the rotating connection part, of any one of the adjusting cantilever assemblies, a hoisting part is arranged on any one of the adjusting cantilever assemblies, and a bottom part bagging rigging for bagging a special-shaped part is arranged between the hoisting parts of the two adjusting cantilever assemblies;

the lifting adjustable top abutting assembly is arranged at the bottom of the connecting longitudinal beam and used for abutting against the top of the special-shaped piece.

By adopting the technical scheme, the rigging can be mounted on a special-shaped piece with a special-shaped section by using the bottom rigging, and then the hoisting rigging at the upper part is hooked on a crane or a lifting sling, so that the mounting position of the whole body can be conveniently adjusted; at the moment, the cantilever assembly is upwards pulled by the upper hoisting rigging and upwards swings, the bottom part of the special-shaped piece is subjected to bagging operation by the bottom part bagging rigging under the action of the self weight of the special-shaped piece, then the top part lifting assembly arranged in a lifting mode is abutted against the top part of the special-shaped piece, so that automatic hoop fixing and clamping of the special-shaped piece are realized, the connecting longitudinal beam, the adjustable cantilever assembly with the two rotatable sides, the top part abutting assembly, the bottom part bagging rigging and the hoisted special-shaped piece form a lower chord cable structure which is applicable to various special-shaped pieces, and the universality of the lifting appliance is greatly improved;

when the special-shaped section is separated, the separation operation of the special-shaped section can be completed conveniently and quickly only by adjusting the rotating angles of the two side adjusting cantilever assemblies to enable the two side adjusting cantilever assemblies to rotate along the direction that the bottom sides are close to each other, so that the bottom rope-containing rigging is in a loose state;

in addition, the adjusting cantilever assemblies arranged on the two sides of the connecting longitudinal beam can be adjusted by rotating, the rotating angles of the adjusting cantilever assemblies on the two sides can be adjusted, different tensioning degrees of the bottom hoisting rigging on the left side and the right side can be realized through different rotating angles, the adjustment of the pitch-changing direction angle of the special-shaped section special-shaped piece can be realized by combining the self weight of the special-shaped section special-shaped piece, and the installation angle of the special-shaped section special-shaped piece can be directly adjusted during hoisting operation;

and for long-rod type special-shaped parts such as blades and a tower barrel, a transmission pocket-mounted lifting appliance can be matched, and automatic hoop abutting fixation, quick material release and accurate installation position adjustment can be carried out on the special-shaped parts of the type, so that the lifting efficiency is improved.

Preferably, the hoisting part is provided with a plurality of hoisting parts along the length direction of the adjusting cantilever assembly.

Through adopting above-mentioned technical scheme, be provided with a plurality ofly with hoist and mount portion along the length direction who adjusts cantilever subassembly, and then adjust the interval of two hoist and mount positions of bottom pocket dress rigging, further adapt to different cross sectional area's pocket dress operation.

Preferably, the top abutting assembly comprises a transverse swing frame which is arranged at the bottom of the connecting longitudinal beam in a lifting adjustable mode and a pressing block which is arranged on the transverse swing frame and used for abutting against the top of the special-shaped piece, and the transverse swing frame is in rotating connection with the connecting longitudinal beam.

By adopting the technical scheme, during actual butt joint operation, the transverse swing frame which can be adjusted in lifting is utilized to adapt to the butt joint heights of different cross sections, and meanwhile, the transverse swing frame is connected with the connecting longitudinal beam in a rotating mode, so that on one hand, the transverse swing frame can adapt to different cross section shapes, and the cantilever assembly can be adjusted to finely adjust the pitch angle of the special-shaped piece and also adapt to the cross section shapes of the special-shaped piece under different angles.

Preferably, adjust cantilever subassembly and include that the tip rotates first cantilever and the second cantilever of connection on connecting the longeron, upper portion hoist and mount rigging sets up the other end at first cantilever, be provided with the second roll adjustment mechanism that is used for adjusting both intervals between first cantilever and the second cantilever, hoist and mount portion sets up on the second cantilever, the axis of rotation of first cantilever and second cantilever is parallel with the length direction of hoist and mount crossbeam.

Through adopting above-mentioned technical scheme, utilize the second roll adjustment mechanism between first cantilever and the second cantilever, realize the interval between first cantilever and the second cantilever and adjust, and then change the height of hoist and mount portion on the second cantilever, when utilizing two lower chord cable self-tensioning hoist and mount adjusting unit to carry out the hoist and mount operation, change the height of hoist and mount portion among one of them lower chord cable self-tensioning hoist and mount adjusting unit, and then can realize the regulation to profile shape inclination to the handling installation operation on adaptation different inclined planes.

Preferably, the second distance adjusting mechanism comprises a connecting rod assembly, one end of the connecting rod assembly is rotatably connected to the first cantilever, the other end of the connecting rod assembly is rotatably connected to the second cantilever, and the rotating axis of the connecting rod assembly is parallel to that of the first cantilever.

Through adopting above-mentioned technical scheme, utilize the link assembly between first cantilever and the second cantilever, and then form four-bar linkage between first cantilever, second cantilever, connection longeron and the link assembly, along with the difference of first cantilever turned angle, realize the regulation to second cantilever turned angle, and then realize the roll adjustment operation between first cantilever and the second cantilever.

Preferably, the connecting rod assembly is detachably and fixedly connected with the rotating connection position of the first cantilever and the second cantilever.

Through adopting above-mentioned technical scheme, utilize the dismantled fixed connection that link assembly formed along first cantilever and second cantilever length direction, and then the accessible is changed the link assembly of different length, realizes the roll adjustment function between first cantilever and the second cantilever.

Preferably, a plurality of detachable and fixed connecting positions of the first cantilever and the second cantilever and the connecting rod assembly are arranged along respective length directions.

Through adopting above-mentioned technical scheme, change the position that link assembly both ends rotated the junction to under the prerequisite that does not change link assembly, with the function of the distance between realization regulation first cantilever and the second cantilever.

Preferably, the second distance adjusting mechanism comprises a connecting rope body fixedly arranged on the first cantilever and the second cantilever and a retracting assembly for retracting the connecting rope body.

Through adopting above-mentioned technical scheme, because at the in-process of hoist and mount, the connecting rope body can be in the state of tightening all the time, at this moment, utilize to receive and release the subassembly and realize the operation of receiving and releasing the connecting rope body, and then improved the convenience and the precision of first cantilever and second cantilever roll adjustment greatly.

Preferably, the winding and unwinding assembly comprises a mounting frame, a fixed pulley, a winch and a movable pulley, the mounting frame can be detached and fixed on the first cantilever, the fixed pulley is rotatably connected onto the mounting frame, the winch is fixed on the mounting frame and is fixedly connected with the fixed pulley in a coaxial mode, the movable pulley is rotatably connected onto the second cantilever, one end of the connecting rope body is fixedly wound on the winch, the other end of the connecting rope body is sequentially wound on the fixed pulley and the movable pulley and is fixed onto the mounting frame, and the rotating axis of the winch, the fixed pulley and the movable pulley is parallel to that of the first cantilever.

Through adopting above-mentioned technical scheme, in-service use, utilize the hoist engine to realize the fixed pulley to the rolling of connecting the rope body and unreel the operation, because the connecting rope body is around establishing on the movable pulley, and then along with the rolling of connecting the rope body with unreel the operation, realize the lift of movable pulley, and then realize that the second cantilever rotates along the direction of being close to or keeping away from first cantilever, realize the roll adjustment operation between first cantilever and the second cantilever, and this kind of roll adjustment mode, utilize movable fixed pulley rope assembly, reducible load that receives of receiving and releasing the subassembly.

In order to increase the efficiency of the position adjustment of the elongated bar profile, the present application also provides a spreader assembly.

The application provides a hoist subassembly adopts following technical scheme:

the utility model provides a lifting appliance assembly, includes that the lower chord cable is from tensioning hoist and mount adjusting unit, still includes the hoist and mount crossbeam, it is provided with a plurality ofly along the adjustable length direction of hoist and mount crossbeam to connect the longeron.

By adopting the technical scheme, in actual use, through a plurality of connecting longitudinal beams arranged on the hoisting cross beam, namely, a plurality of lower chord cable self-tensioning hoisting adjusting units are arranged along the length direction of the hoisting cross beam, the self-tensioning anchor ear fixing, quick material release and accurate position adjusting operation on different cross sections of the long rod type special-shaped piece can be realized.

In order to improve the hoisting efficiency of both sides slant different positions in the coplanar, this application still provides a hoist system.

The application provides a hoist system adopts following technical scheme:

the lifting appliance system at least comprises two self-tensioning lifting adjusting units of lower chord cables with adaptable special-shaped cross sections and a lifting main beam, wherein one end, far away from a first cantilever, of an upper rigging is fixedly arranged on the lifting main beam, and the lifting main beam is provided with a main rigging for hooking a lock hook of a crane.

By adopting the technical scheme, the upper rigging can be fixed on the hoisting longitudinal beam, so that the installation of the at least two lower chord self-tensioning hoisting adjusting units on the hoisting main cross beam is completed, the hoisting operation of a plurality of special-shaped pieces in the same plane can be completed in the plane where the hoisting main cross beam is located, and the position adjustment of the special-shaped pieces and the fine adjustment of the pitch angle can be realized in the hoisting operation of each special-shaped piece.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the hoisting positions on the bottom pocketed rigging are more flexible by utilizing the hoisting parts arranged along the length direction of the second cantilever, the inner wrap angle of the bottom pocketed rigging is adjusted within a proper angle, and meanwhile, the length of different bottom pocketed rigging can be adapted to; the method is more suitable for special-shaped pieces with different cross-sectional areas; the bottom pocket rigging adopts suspender or rope that the winding is good, can adapt to various special-shaped cross section shapes, and then improves the commonality of this application greatly.

2. This application utilizes the dead weight of mechanical profile to combine ascending hoist and mount traction force, alright realize that first cantilever and second cantilever rotate automatically, realize the pocket dress operation of bottom pocket dress rigging, and then realize the preliminary locking to mechanical profile, later combine top butt subassembly again, alright realize the mechanical profile auto-lock operation.

3. Utilize first roll adjustment mechanism between first rotation seat and the second rotation seat, the atress is more reasonable, and two first cantilever contained angles are less when lifting heavy, only can receive the dead weight load of this hoist during the unblock, help improving first roll adjustment mechanism's life.

4. The first cantilever and the second cantilever which are arranged on the connecting longitudinal beam are utilized, and the heavy object can deflect by a large angle in the transverse direction of the lifting appliance through the scheme of traction of the hoisting pulley block between the first cantilever and the second cantilever. The degree of freedom of the lifting appliance is increased, and the lifting appliance is more convenient and flexible.

5. The lifting appliance system is applicable to double-head tower barrel lifting or double-blade angle lifting schemes, fills up domestic blank, can meet lifting stability requirements of offshore floating fan foundations, can reduce unbalanced bending moment of tower barrel foundations during blade lifting, improves lifting efficiency and has higher safety.

Drawings

FIG. 1 is a schematic view of a first embodiment of a self-tensioning hoisting adjusting unit for a lower chord cable, which mainly shows an overall structure in a front view;

FIG. 2 is a first embodiment of a lower chord cable self-tensioning hoisting adjusting unit, which mainly shows a front view of the lower chord cable self-tensioning hoisting adjusting unit in an adjusting state;

FIG. 3 is a schematic view of a first embodiment of a self-tensioning hoisting adjustment unit for a lower chord cable, which mainly embodies the structure of a top abutting assembly;

FIG. 4 is a schematic view of a second embodiment of a self-tensioning hoisting adjusting unit for a bottom chord cable, which mainly shows the overall structure in a front view;

FIG. 5 is a third embodiment of a self-tensioning hoisting adjustment unit for a bottom chord cable, which mainly shows a schematic view of an overall structure in a front view;

FIG. 6 is a partial sectional view of a first embodiment of a hoisting assembly, which mainly shows an overall structure in a front view;

fig. 7 is a partially enlarged view of a portion a in fig. 6, which mainly shows the structure of the plug pin and the plug pin hole;

FIG. 8 is a side view of a first embodiment of a lifting assembly, which embodies generally the entire structure;

FIG. 9 is a side view of a second embodiment of a hoist assembly, which embodies generally the overall structure;

fig. 10 is a front view of an embodiment of a hoisting system, which mainly shows the overall structure in a front view.

Reference numerals: 1. connecting the longitudinal beams; 11. a plug pin; 2. adjusting the cantilever assembly; 21. a first cantilever; 211. a hoisting part; 22. a first distance adjusting mechanism; 221. a first rotating base; 222. a second rotating base; 223. a linear oil cylinder; 23. a second cantilever; 24. a second distance adjusting mechanism; 241. a connecting rod; 242. connecting a rope body; 243. a retraction assembly; 2431. a mounting frame; 2432. a fixed pulley; 2433. a winch; 2434. a movable pulley; 3. hoisting rigging at the upper part; 4. rigging is arranged at the bottom; 5. a top abutment assembly; 51. a lift cylinder; 52. transversely swinging the frame; 53. a pressing block; 6. hoisting the beam; 61. a pin hole; 7. hoisting the main beam; 8. a main rigging.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses lower chord cable self-tensioning hoisting adjusting unit.

Example 1

Referring to fig. 1, the self-tensioning hoisting adjusting unit for the lower chord cable comprises a connecting longitudinal beam 1 and adjusting cantilever assemblies 2 which are rotatably and adjustably arranged on two sides of the connecting longitudinal beam 1 in the length direction, the rotating axis of any adjusting cantilever assembly 2 is vertical to the length direction of the connecting longitudinal beam 1, an upper hoisting rigging 3 is arranged at the end part of any adjusting cantilever assembly 2 far away from the rotating connection part, and the upper hoisting rigging 3 can be directly hooked with a hoisting hook of a crane or connected to other hoists;

with reference to fig. 1, it further comprises a bottom rigging 4 for rigging the profile arranged between the two adjusting boom assemblies 2, and a top abutment assembly 5 arranged elevationally adjustable at the bottom of the connecting stringer 1 for abutting the top of the profile.

In-service use, utilize bottom pocket dress rigging 4 and upper portion hoist and mount rigging 3, and combine the dead weight and the top butt subassembly 5 of mechanical profile, the realization is carried out the pocket dress to the mechanical profile and is from locking, and the cooperation sets up a plurality of lower chord cables from tensioning hoist and mount the regulating element, the realization is to mechanical profile inclination's regulation, and the lower chord cable is from tensioning hoist and mount the adjustable regulation cantilever subassembly 2 of the usable rotation of regulating element, adjust the endocyst angle beta of bottom pocket dress rigging 4, the realization becomes the fine setting of oar angle to the mechanical profile, in order to accomplish accurate installation regulation.

Since the structure and the installation manner of the adjusting boom assemblies 2 on both sides are the same, the adjusting boom assembly 2 on the same side is taken as an example for explanation.

Referring to fig. 1 and 2, the adjusting cantilever assembly 2 includes a first cantilever 21, one end of the first cantilever 21 is rotatably connected to the mounting longitudinal beam, the upper hoisting rigging 3 is disposed at one end of the first cantilever 21 away from the rotatable connection thereof, a plurality of hoisting portions 211 are disposed at a middle section of the first cantilever 21 along a length direction thereof, and the hoisting portions 211 can be configured as hoisting ear plates; the bottom pocket rigging 4 is arranged on the hoisting parts 211 of the two first cantilevers 21; the adjusting boom assembly 2 further comprises a first distance adjustment mechanism 22 arranged between the first boom 21 and the connecting stringer 1.

Referring to fig. 1 and 2, the first distance adjusting mechanism 22 may be configured as a linear transmission mechanism, the linear transmission mechanism may include a linear oil cylinder 223, a rack and pinion, a lead screw nut, and the like, and may also be configured as a link transmission mechanism to achieve the purpose of adjusting the distance between the first rotating seat 221 and the second rotating seat 222, in this embodiment, the first distance adjusting mechanism 22 includes the first rotating seat 221, the second rotating seat 222, and the linear oil cylinder 223, the first rotating seat 221 is rotatably connected to the first cantilever 21, the second rotating seat 222 is rotatably connected to the connecting longitudinal beam 1, and the rotation axes of the first rotating seat 221 and the second rotating seat 222 are parallel to the rotation axis of the first cantilever 21; the bottom end of the linear oil cylinder 223 is fixed on the first rotating seat 221, the end of the piston rod of the linear oil cylinder 223 is fixed on the second rotating seat 222, and the linear oil cylinder 223 is provided with a displacement detection electronic module for adjusting the expansion and contraction amount of the linear oil cylinder 223; the PLC in the displacement detection electronic module can control and adjust the telescopic strokes of the two linear oil cylinders 223, and then the rotating angles of the two first cantilevers 21 are achieved.

Referring to fig. 2 and 3, the top abutting assembly 5 includes a lift cylinder 51, a transverse swing frame 52 and a pressing block 53, a cylinder body of the lift cylinder 51 is fixed at the bottom of the connecting longitudinal beam 1, a piston rod of the lift cylinder 51 is vertically and downwardly arranged, the transverse swing frame 52 is rotatably connected to an end of the piston rod of the lift cylinder 51 through a pin, two pressing blocks 53 are arranged at intervals along the length direction of the transverse beam and fixed at the bottom of the transverse swing frame 52, and the pressing block 53 abuts against a side wall of the radial top of the profile along with the extension and retraction of the lift cylinder 51, so that the profile is safely locked.

The implementation principle of this application embodiment a lower chord cable is from tensioning hoist regulating unit does:

for the block-shaped irregular part with the irregular cross section, a bottom bag rigging 4 is used for being arranged on the irregular part in a bag mode, and the bottom bag rigging 4 can adopt a hanging strip or a rope with good flexibility and has certain friction; then, the upper hoisting rigging 3 is hooked on a crane or a lifting sling, so that the integral installation position is convenient to adjust; at the moment, the two first cantilevers 21 are pulled upwards by the upper hoisting rigging 3 and swing upwards, at the moment, the two linear oil cylinders 223 are in a free state, namely, under the action of the self weight of the special-shaped piece, the bottom packing rigging 4 carries out packing operation on the bottom of the special-shaped piece, and then the lifting oil cylinder 51 is used for driving the pressing block 53 to descend until the pressing block abuts against the top of the special-shaped piece, so that the blades or the tower drum with the special-shaped section are fixed and clamped, and the universality of the lifting appliance is greatly improved;

when the special-shaped section special-shaped piece needs to be separated, the included angle between the two upper hoisting riggings 3 and the vertical line is greatly adjusted by utilizing the two linear oil cylinders 223, the bottom hoisting rigging 4 can be in a loose state only by adjusting the two linear oil cylinders 223 to perform extension movement and increasing the included angle between the two upper hoisting riggings 3, and the separation operation of the special-shaped section special-shaped piece can be completed conveniently and quickly;

referring to fig. 2, the stretching stroke of the two linear cylinders 223 is adjusted by a small amplitude, so that different tensioning degrees of the bottom hoisting rigging on the left side and the right side are changed, that is, the inner wrap angle of the bottom hoisting rigging is changed, and the adjustment of the pitch-changing direction angle of the special-shaped section profiled piece is realized by combining the self weight of the special-shaped section profiled piece, and the installation angle of the special-shaped section profiled piece can be directly adjusted during hoisting operation.

Example 2

Referring to fig. 4, the present embodiment is different from embodiment 1 in that,

in this application embodiment, the regulation cantilever assembly 2 of this side still includes second cantilever 23, and in other embodiments, can be according to use and hoist and mount condition, adjust cantilever assembly 2 still can include a plurality of cantilevers of being connected with connection longeron 1 rotation such as third cantilever. One end of the second cantilever 23 is rotatably connected with the mounting longitudinal beam and is positioned below the first cantilever 21, in the embodiment of the application, the hoisting parts 211 are arranged on the second cantilever 23 and are provided with a plurality of hoisting parts along the length direction, and the bottom rope mounting 4 is arranged on the hoisting parts 211 of the two second cantilevers 23; the adjusting boom assembly 2 further comprises a second pitch mechanism 24 arranged between the first boom 21 and the second boom 23.

Referring to fig. 4, the second distance adjusting mechanism 24 is configured as a link assembly, which may include a plurality of connecting rods 241 that are rotatably connected end to end, wherein the ends of the connecting rods 241 at both ends are respectively rotatably connected to the first cantilever 21 and the second cantilever 23, and in the embodiment of the present application, the link assembly is configured as one connecting rod 241, one end of the connecting rod 241 is rotatably connected to the first cantilever 21, the other end of the connecting rod 241 is rotatably connected to the second cantilever 23, and the rotation axis of the connecting rod 241 is parallel to the rotation axis of the first cantilever 21, wherein both ends of the connecting rod 241 are fixedly connected to the first cantilever 21 and the second cantilever 23 by a pin and a pinhole, and the first cantilever 21 and the second cantilever 23 are provided with a plurality of pinholes that form a detachable fixed connection with the ends of the connecting rods 241 along respective length directions.

The implementation principle of the lower chord cable self-tensioning lifting appliance adjusting unit in the embodiment of the application is as follows:

in actual operation, an operator can adjust the distance between the first cantilever 21 and the second cantilever 23 by replacing the connecting rods 241 with different lengths, and can also adjust the first cantilever 21 and the second cantilever 23 by respectively connecting the connecting rods 241 with the same length in different pin holes of the first cantilever 21 and the second cantilever 23.

Example 3

Referring to fig. 5, the present embodiment is different from embodiment 1 in that,

the second distance adjusting mechanism 24 includes a connecting rope 242 fixedly disposed on the first suspension arm 21 and the second suspension arm 23, and a retracting and releasing assembly 243 for retracting and releasing the connecting rope 242, in the embodiment of the present application, the retraction assembly 243 comprises a mounting bracket 2431, a fixed pulley 2432, a winch 2433 and a movable pulley 2434, the mounting bracket 2431 is hooked on the first cantilever 21 by means of a hanging buckle, the fixed pulley 2432 is rotatably connected on the mounting bracket 2431, the winch 2433 is mounted on the mounting bracket 2431, the fixed pulley 2432 is coaxially and fixedly connected with the output shaft of the winch 2433, the movable pulley 2434 is rotatably connected with the end part of the second cantilever 23, the connecting rope 242 is a steel wire rope, one end of the wire rope is fixed on the fixed pulley 2432, the other end of the wire rope winds the set pulley 2432 and the movable pulley 2434 and is fixed on the bottom side of the mounting frame 2431, and the rotation axes of the hoist 2433, the fixed sheave 2432, and the movable sheave 2434 are parallel to the rotation axis of the first boom 21.

The implementation principle of the embodiment 3 is as follows:

to the long pole type abnormal shape piece of dysmorphism cross section, can cooperate a traditional pocket dress hoist and this application embodiment, utilize hoist 2433 to realize that fixed pulley 2432 is to wire rope's rolling and unreel the operation, because wire rope winds and establishes on movable pulley 2434, and then along with wire rope's rolling and unreel the operation, realize movable pulley 2434's lift, and then realize that second cantilever 23 rotates along the direction of being close to or keeping away from first cantilever 21, realize the roll adjustment operation between first cantilever 21 and the second cantilever 23, and then for traditional pocket dress hoist, carry out whole inclination's adjustment operation to long pole type abnormal shape piece.

The embodiment of the application also discloses a lifting appliance component.

Example 1

Referring to fig. 6 and 7, the spreader assembly includes a hoisting beam 6, the hoisting beam 6 is adjustably provided with a plurality of lower chord cables along the length direction thereof, in the application of the self-tensioning hoisting adjusting unit, in the application, a plurality of second rotating seats 222 are arranged along the length direction of the hoisting beam 6, and the second rotating seats 222 are detachably connected with the end of the piston rod of the linear oil cylinder 223 through a pin shaft.

Referring to fig. 6 and 7, the specific adjustable mode is that the hoisting cross beam 6 is provided with a plurality of bolt holes 61 along the length direction thereof, the installation longitudinal beam is sleeved on the hoisting cross beam 6, and the installation longitudinal beam is provided with the inserting pins 11 which are inserted and matched with the bolt holes 61 in an inserting manner, so that the installation longitudinal beam and the hoisting cross beam 6 can be detachably and fixedly connected. When the position of the connecting longitudinal beam 1 needs to be adjusted, the dismounting and fixing connection between the linear oil cylinder 223 and the corresponding second rotating seat 222 can be synchronously adjusted.

Referring to fig. 6 and 8, two self-tensioning hoisting adjusting units for the lower chord cables are mounted on the hoisting cross beam 6 at intervals, so that stable horizontal hoisting operation can be performed on the special-shaped piece. The self-tensioning anchor ear fixing, quick material removing and accurate position adjusting operation can be carried out on different sections of the long rod type special-shaped piece.

Example 2

Referring to fig. 5 and 9, the embodiment of the present application is different from embodiment 2 in that,

the hoisting crossbeam 6 is provided with two lower chord cables at intervals for self-tensioning hoisting adjustment unit application in embodiment 3.

The steel wire rope in one of the lower chord self-tensioning hoisting adjusting units is driven by the winch 2433 to be in a winding state, the steel wire rope in the other lower chord self-tensioning hoisting adjusting unit is driven by the winch 2433 to be in an unwinding state, and then the rotation angles of the second cantilevers 23 in the two lower chord self-tensioning hoisting adjusting units are different, so that the special-shaped piece packaged by the bottom-packaged rigging 4 is in an inclined state, and further the hoisting installation of the inclined position of the special-shaped piece is met.

The embodiment of the application also discloses a lifting appliance system.

Referring to fig. 10, the spreader system at least includes embodiment 2 in two spreader component applications, that is, four lower chord cable self-tensioning hoisting adjusting units, and the present application embodiment further includes a hoisting main beam 7, the upper hoisting rigging 3 in the four lower chord cable self-tensioning hoisting adjusting units is vertically fixed on the hoisting main beam 7, and two ends of the hoisting main beam 7 can be fixed with an extension beam section by welding according to the operation condition; the hoisting main beam 7 is provided with a main rigging 8 for hooking a crane or a crane hook.

The implementation principle of a lifting appliance system in the embodiment of the application is as follows:

for the scheme of the oblique hoisting of the double-head tower cylinder or the oblique hoisting of the angle of the double blades, the hoisting main beam 7 is fixed by using the main rigging 8, and then the special-shaped piece hoisted by the two lower chord cable self-tensioning hoisting adjusting units in the lower chord cable self-tensioning hoisting tool capable of adapting to the special-shaped cross section can be obliquely installed in the plane where the hoisting main beam 7 is located by using the implementation mode in the embodiment 3, and the quick adjustment of the pitch angle of the double-head tower cylinder and the double blades can be realized by using the adjustment mode in the embodiment 1.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (11)

1. The utility model provides a lower chord cable is from tensioning hoist and mount adjusting unit which characterized in that: the adjustable lifting device comprises a connecting longitudinal beam (1) and adjusting cantilever assemblies (2) which are rotatably and adjustably arranged on two sides of the connecting longitudinal beam (1) in the length direction, wherein an upper lifting rigging (3) is arranged at the end part, far away from the rotating connection part, of any one of the adjusting cantilever assemblies (2), a lifting part (211) is arranged at any one of the adjusting cantilever assemblies (2), and a bottom pocket rigging (4) for pocket-loading special-shaped parts is arranged between the lifting parts (211) of the adjusting cantilever assemblies (2);

the lifting adjustable top abutting assembly (5) is arranged at the bottom of the connecting longitudinal beam (1) and used for abutting against the top of the special-shaped piece.

2. The self-tensioning hoisting adjusting unit for the lower chord cable according to claim 1, wherein: the hoisting parts (211) are arranged in a plurality along the length direction of the adjusting cantilever assembly (2).

3. The self-tensioning hoisting adjusting unit for the lower chord cable as claimed in claim 2, wherein: the top abutting assembly (5) comprises a transverse swing frame (52) which is arranged at the bottom of the connecting longitudinal beam (1) in a lifting adjustable mode and a pressing block (53) which is arranged on the transverse swing frame (52) and used for abutting against the top of the special-shaped piece, and the transverse swing frame (52) is rotatably connected with the connecting longitudinal beam (1).

4. The self-tensioning hoisting adjusting unit for the lower chord cable as claimed in claim 1, wherein: adjust cantilever subassembly (2) and include that the tip rotates first cantilever (21) and second cantilever (23) of connection on connecting longeron (1), upper portion hoist and mount rigging (3) set up the other end at first cantilever (21), be provided with between first cantilever (21) and second cantilever (23) and be used for adjusting second roll adjustment mechanism (24) of both intervals, hoist and mount portion (211) set up on second cantilever (23), the axis of rotation of first cantilever (21) and second cantilever (23) is parallel with the length direction of hoist and mount crossbeam (6).

5. The self-tensioning hoisting adjusting unit for the lower chord cable as claimed in claim 4, wherein: the second distance adjusting mechanism (24) comprises a connecting rod assembly, one end of the connecting rod assembly is rotatably connected to the first cantilever (21), the other end of the connecting rod assembly is rotatably connected to the second cantilever (23), and the rotating axis of the connecting rod assembly is parallel to that of the first cantilever (21).

6. The self-tensioning hoisting adjusting unit for the lower chord cable according to claim 5, wherein: the connecting rod assembly is detachably and fixedly connected with the rotating connection position of the first cantilever (21) and the second cantilever (23).

7. The self-tensioning hoisting adjusting unit for the lower chord cable as claimed in claim 6, wherein: the detachable fixed connection positions of the first cantilever (21) and the second cantilever (23) and the connecting rod assembly are provided with a plurality of parts along the respective length directions.

8. The self-tensioning hoisting adjusting unit for the lower chord cable as claimed in claim 4, wherein: the second distance adjusting mechanism (24) comprises a connecting rope body (242) fixedly arranged on the first cantilever (21) and the second cantilever (23) and a collecting and releasing assembly (243) for collecting and releasing the connecting rope body (242).

9. The self-tensioning hoisting adjusting unit for the lower chord cable as recited in claim 8, wherein: the retractable assembly (243) comprises a mounting rack (2431), a fixed pulley (2432), a winch (2433) and a movable pulley (2434), the mounting rack (2431) is detachably fixed on the first cantilever (21), the fixed pulley (2432) is rotatably connected to the mounting rack (2431), the winch (2433) is fixed to the mounting rack (2431) and coaxially and fixedly connected with the fixed pulley (2432), the movable pulley (2434) is rotatably connected to the second cantilever (23), one end of the connecting rope body (242) is fixedly wound on the winch (2433), the other end of the connecting rope body (242) is sequentially wound on the fixed pulley (2432) and the movable pulley (2434) and fixed to the mounting rack (2431), and the rotation axes of the winch (2433), the fixed pulley (2432) and the movable pulley (2434) are parallel to the rotation axis of the first cantilever (21).

10. A hoist assembly comprising the lower chord self-tensioning hoist adjustment unit of claim 8, characterized in that: still include hoist and mount crossbeam (6), connect longeron (1) and be provided with a plurality ofly along the adjustable length direction of hoist and mount crossbeam (6).

11. A hoist system comprising at least two hoist assemblies of claim 10, wherein: still include hoist and mount main beam (7), the one end that first cantilever (21) was kept away from in upper portion hoist and mount rigging (3) is fixed to be set up on hoist and mount main beam (7), be provided with on hoist and mount main beam (7) and be used for hooking up general rigging (8) of latch hook of crane.

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