CN221836624U - Hoisting equipment - Google Patents

Abstract

The application relates to a lifting device, which is characterized by comprising: a hoisting part, an amplitude winch and a rotary platform; the rotary platform comprises: a base and a rotary table; the rotary table is movably arranged on the base, and the lifting part and the amplitude winch are arranged on the rotary table; the hoisting part comprises: the lifting frame and the lifting arm; one end of the lifting frame is fixedly arranged on the rotary platform, and the other end of the lifting frame is provided with a first pulley; one end of the lifting arm is hinged to one side of the rotary platform, and the luffing winch is connected with the other end of the lifting arm through a first pulley; the lifting arm is provided with a first winch lifting hook part and a second winch lifting hook part, and the first winch lifting hook part and the second winch lifting hook part are both suitable for lifting the weight. The application has perfect overall structure function, firm base, high bearing tension and high lifting efficiency; the problem that lifting steering cannot be performed is solved from the source.

Description

Hoisting equipment

Technical Field

The application relates to the technical field of lifting, in particular to lifting equipment.

Background

The ocean platform crane is special hoisting equipment arranged on an ocean platform deck, is widely applied to various ocean platforms, and is important component equipment of the ocean platform. On the platform, the ocean platform crane frequently lifts equipment and takes up and sends out workers to and from the platform every day, and the utilization rate of the ocean platform crane is high. The existing hoisting equipment can refer to a crane with the publication number of CN203428794U, a base is placed on the ground, a motor is started, a steel rope is lowered, a heavy object is hung on a lifting hook of the steel rope, the motor is started again, the steel rope is retracted, and therefore the height of the crane is lifted by the heavy object. However, the base of the equipment cannot rotate, so that the crane can only lift in one direction in the working process, the angle cannot be rotated, and the lifting range is small.

Disclosure of Invention

In view of this, the present application proposes a lifting device suitable for implementing lifting steering.

According to an aspect of the present application, there is provided a lifting apparatus, characterized by comprising: a hoisting part, an amplitude winch and a rotary platform;

The rotary platform comprises: a base and a rotary table; the rotary table is movably arranged on the base, and the lifting part and the amplitude winch are arranged on the rotary table;

The hoisting part comprises: the lifting frame and the lifting arm; one end of the lifting frame is fixedly arranged on the rotary platform, and the other end of the lifting frame is provided with a first pulley; one end of the lifting arm is hinged to one side of the rotary platform, and the luffing winch is connected with the other end of the lifting arm through a first pulley;

The lifting arm is provided with a first winch lifting hook part and a second winch lifting hook part, and the first winch lifting hook part and the second winch lifting hook part are both suitable for lifting the weight.

In one possible implementation, the rotary platform further includes: a slewing bearing;

the rotary platform is arranged on the inner side of the rotary bearing, and the base is fixed on the outer side of the rotary bearing.

In one possible implementation, the crane comprises: two triangular frames and more than two connecting rods;

The two triangular frames are oppositely arranged, and more than two connecting rods are arranged between the two triangular frames.

In one possible implementation, the top ends of both tripods are provided with fixing plates;

the first pulley is rotatably disposed between the two fixed plates.

In one possible implementation, the method further includes: the first maintenance platform and the second maintenance platform;

The first dimension platform sets up in the one side of base, and the second dimension platform sets up the one end at the gallows.

In one possible implementation, the lifting frame further includes: a limit buffer rod;

One end of the limiting buffer rod is arranged on one side of the tripod, and the other end of the limiting buffer rod is provided with buffer glue.

In one possible implementation, the first winch hook section includes: the first winch and the first lifting hook;

the first winch is arranged at one end of the lifting arm close to the rotary platform, and the first lifting hook is arranged at one end of the lifting arm far away from the rotary platform;

The first winch is connected with the first lifting hook through a steel wire rope.

In one possible implementation, the lifting arm is provided with a secondary boom;

the auxiliary boom is positioned at one end of the lifting arm far away from the rotary platform.

In one possible implementation, the second winch hook section includes: the second winch and the second lifting hook;

The second winch is arranged at one end of the lifting arm close to the rotary platform, and the second lifting hook is arranged at one end of the auxiliary lifting arm;

The second winch is connected with the second lifting hook through a steel wire rope.

In one possible implementation, the second winch hook section further includes: a second pulley and a third pulley;

The second pulley and the third pulley are adjacently arranged between the second winch and the second lifting hook, and the steel wire rope sequentially passes through the second pulley and the third pulley.

The beneficial effects are that: the application has perfect overall structure function, firm base, high tensile force bearing and high lifting efficiency. The steel rope lifts the suspension arm through the first pulley, so that the labor-saving effect is skillfully achieved, the traditional working mode is replaced, and heavy work is easier; the problem that lifting steering cannot be performed is solved from the source.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the application and together with the description, serve to explain the principles of the application.

Fig. 1 shows a front view of a lifting device according to an embodiment of the application;

Fig. 2 shows a top view of a lifting device according to an embodiment of the application;

fig. 3 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application;

Fig. 4 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application;

fig. 5 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application;

fig. 6 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application;

fig. 7 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application;

fig. 8 shows a side view of a lifting device according to an embodiment of the application.

Detailed Description

Various exemplary embodiments, features and aspects of the application will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It should be understood, however, that the terms "center," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, well known methods, procedures, components, and circuits have not been described in detail so as not to obscure the present application.

Fig. 1 shows a front view of a lifting device according to an embodiment of the application; fig. 2 shows a top view of a lifting device according to an embodiment of the application; fig. 3 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application; fig. 4 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application; fig. 5 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application; fig. 6 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application; fig. 7 shows an enlarged view of a part of a lifting apparatus according to an embodiment of the application; fig. 8 shows a side view of a lifting device according to an embodiment of the application. As shown in fig. 1, the hoisting apparatus is characterized by comprising: a hoisting part, a luffing winch 300 and a rotary platform; the rotary platform comprises: the base 210 and the rotary table 100; the rotary table 100 is movably arranged on the base 210, and the lifting part and the luffing winch 300 are both arranged on the rotary table 100; the hoisting part comprises: lifting frame and lifting arm 700; one end of the lifting frame is fixedly arranged on the rotary platform, and the other end of the lifting frame is provided with a first pulley 630; one end of the lifting arm 700 is hinged to one side of the rotary platform, and the luffing winch 300 is connected with the other end of the lifting arm 700 through a first pulley 630; the lifting arm 700 is provided with a first winch hook portion and a second winch hook portion, both of which are adapted to lift a weight.

Here, it should be noted that, the lifting portion is suitable for lifting a heavy object, the amplitude winch 300 is suitable for providing lifting power for the lifting portion, the rotary platform is suitable for realizing rotation of the lifting portion, the base 210 is suitable for providing a lifting platform, and the rotary platform 100 can rotate on the base 210, so as to drive the lifting portion to rotate, so that the lifting portion can lift heavy objects in different directions, and lifting works in different directions are satisfied. The lifting frame plays a supporting role on the first pulley 630, and a steel rope on the luffing winch 300 penetrates through the first pulley 630 and is suitable for pulling one end of the lifting arm 700, so that the lifting arm 700 circumferentially rotates by taking a point of connecting the lifting arm 700 with the rotating platform as a circle center, and lifting and dropping of the lifting arm 700 are realized. The first winch lifting hook part and the second winch lifting hook part are arranged on the lifting arm 700, the two winch lifting hook parts can independently or simultaneously lift a heavy object, when the heavy object is lifted, the heavy object is lifted on the lifting hook, and the lifting of the lifting hook and the lifting object is controlled through the winding and unwinding steel wire rope. The application has perfect overall structure function, the base 210 is firm and bears larger pulling force, and the lifting efficiency is high. The steel rope lifts the suspension arm 700 through the first pulley 630, skillfully plays a role in saving labor, and by utilizing the application to perform operation, the traditional working mode is replaced, and heavy work is easier; the problem that lifting steering cannot be performed is solved from the source.

In one possible implementation, the rotary platform further includes: a slewing bearing 200; the turntable 100 is provided inside the slewing bearing 200, and the pedestal 210 is fixed to the outside of the slewing bearing 200. The main body of the rotary table 100 is of a cuboid structure, the rotary bearing 200 is arranged at the bottom of the rotary table 100, the rotary bearing 200 is horizontally arranged on the base 210, the rotary bearing 200 is arranged between the base 210 and the rotary table 100, the bottom surface of the rotary table 100 is connected to the inner ring of the rotary bearing 200 through bolts, and the top surface of the base 210 is connected to the outer ring of the rotary bearing 200 through bolts; the turntable 100 is rotatable relative to the base 210 by the slewing bearing 200.

In one possible implementation, the method further includes: more than two rotary drive hydraulic motors. The swing drive rotation motor base is installed and fixed in the cavity of the base 210, and the drive end of the swing drive rotation motor is in transmission connection with the turntable 100, and the swing drive rotation motor rotates together with the turntable 100.

A circle of rotary gear rings are arranged on the outer wall of the bottom of the rotary table 100; the output shaft of the rotary driving rotary motor is provided with a driving gear; the drive gear meshes with a rotating ring gear on the outer wall of the turntable 100. The bottom of the rotary driving rotary motor is connected with the base 210 through a gear ring, and the output shaft of the rotary motor drives the driving gear to rotate when rotating, and the rotating driving gear is meshed with the rotary gear ring of the rotary table 100 to drive the rotary table 100 to rotate, so that the rotary function of the rotary table 100 is realized.

The lifting arm 700 is connected with the rotary platform through two pin shafts, two pin shaft lug plates are arranged on the side edge of the rotary platform, pin shaft holes are formed in the root of the lifting arm 700, the root of the lifting arm 700 is inserted between the two pin shaft lug plates, and the pin shafts penetrate through the rotary connection.

In one possible implementation, the method further includes: luffing winch 300 and luffing winch mounting rack 310; the derricking winch mounting frame 310 is disposed at one side of the rotary table 100 of the rotary platform, and the derricking winch 300 is mounted inside the derricking winch mounting frame 310, it should be noted that the derricking winch mounting frame 310 is suitable for providing a mounting platform for the derricking winch 300, and the derricking winch 300 has rope storage capability for derricking and maintaining the position of the carrying or non-carrying lifting arm 700. To effect lifting and lowering of the load bearing article by the boom 700. Further, the luffing winch 300 includes: the winding drum, the hydraulic motor and the planetary gear reduction box; and the output end of the hydraulic motor is connected with a planetary gear reduction box, and the output shaft of the planetary gear reduction box is connected with the rotating shaft of the winding drum.

In one possible implementation, the planetary gear reduction box includes: the device comprises a connecting block, a first planetary gear set, a second planetary gear set and a box body; the connecting block fixed connection casing, box fixed connection connecting block, first planetary gear set and second planetary gear set all install in the box, and first planetary gear set is connected with hydraulic motor's output shaft transmission, and second planetary gear set is connected with first planetary gear set transmission. The first planetary gear set includes: a first sun gear, a plurality of first planet gears, and a first carrier; the second planetary gear set includes: a second sun gear, a plurality of second planet gears, and a second planet carrier; the first sun gear is fixed on the output shaft of the hydraulic motor and rotates synchronously with the output shaft of the hydraulic motor, the first planet gears are arranged on one side of the first planet carrier and meshed with the first sun gear, the second sun gear is arranged on the other side of the first planet carrier and rotates synchronously with the first planet carrier, and the second planet gears are arranged on one side of the second planet carrier and meshed with the second sun gear. The output shaft of the hydraulic motor rotates to drive the first sun gear to rotate, the first sun gear drives the first planet gears and the first planet carrier to rotate, one-stage speed reduction is achieved, the first planet carrier drives the second sun gear to rotate, the second sun gear drives the second planet gears and the second planet carrier to rotate, two-stage speed reduction is achieved, the second planet carrier drives the output shaft to rotate, and rotating speed reduction output to the winding drum is achieved.

In one possible implementation, a steel wire rope is wound around the reel, and the luffing angle of the boom 700 is controlled by unwinding and unwinding the wire rope in forward and reverse directions of the luffing winch 300.

In one possible implementation, the crane comprises: two tripods and more than two connecting rods 614; the two triangular frames are arranged oppositely, and more than two connecting rods 614 are arranged between the two triangular frames. As shown in fig. 5, the tripod includes: the first support bar 600 and the second support bar 610; one end of the first support bar 600 is vertically connected with the rotating platform, the other end of the first support bar 600 is connected with the fixing plate 620, one end of the second support bar 610 is connected with the rotating platform, a preset angle is arranged between the body length direction of the second support bar 610 and the surface of the rotating platform, and the other end of the second support bar 610 is connected with the fixing plate 620. It should be noted that the first support bar 600 is adapted to support and fix the first pulley 630, and the second support bar 610 is adapted to reinforce the first support bar 600.

In one possible implementation, two triangular frames are provided, and the two triangular frames are arranged on the rotary table 100 in parallel, and a plurality of connecting rods 614 are arranged between the two triangular frames to improve the stability between the two triangular frames; further, two connecting rods 614 are provided between the two first support rods 600; two connecting rods 614 are provided between the two second support rods 610.

In one possible implementation, the top ends of both tripods are provided with a fixing plate 620; the first pulley 630 is rotatably disposed between the two fixing plates 620. As shown in fig. 6, the main body of the fixing plate 620 has a triangular plate-shaped structure, in which one corner is connected with a first support bar 600, one corner is connected with a second support bar 610, and the other corner is fixed with a pin shaft; the body of the pin is in a round bar structure, the pin is disposed between two fixing plates 620 of two tripod, and a first pulley 630 is mounted on the pin and rotatably disposed. The wire rope of the luffing winch 300 is led from the reel of the luffing winch 300 to the first pulley 630 and is led to the lifting arm 700 through the first pulley 630, so that the luffing angle of the lifting arm 700 is controlled by winding and unwinding the wire rope in the forward rotation and the reverse rotation of the luffing winch 300.

In one possible implementation, the method further includes: first dimension trim platform 220 and second dimension trim platform 640; the first maintenance platform 220 is disposed at one side of the base 210, and the second maintenance platform 640 is disposed at one end of the lifting frame. It should be noted that, the first maintenance platform 220 is suitable for a worker to maintain and repair the base 210; the second maintenance platform 640 is adapted for maintenance repair of the first sheave 630 by a worker. Further, the side edges of the first dimension trimming platform 220 and the second dimension trimming platform 640 are respectively provided with a guard rail, so that the guard rails play a role in protection and safety. One side of the second dimension troop 640 is provided with a ladder 650, which is adapted for a worker to enter the second dimension troop 640 from the ladder 650.

In one possible implementation, the lifting frame further includes: limit buffer rods 611; one end of the limiting buffer rod 611 is arranged on one side of the lifting frame through a connecting plate 613, and the other end of the limiting buffer rod 611 is provided with buffer glue. As shown in fig. 4 and 5, the main body of the limit buffer rod 611 is in a round rod structure, a connecting plate 613 is arranged on the tripod, one end of the limit buffer rod 611 is vertically connected with the connecting plate 613, and the other end of the limit buffer rod 611 is correspondingly arranged with the lifting arm 700. Further, the rubber adopts buffer vulcanized rubber, and the limiting buffer rod 611 has the function of mechanically limiting the lifting arm 700, preventing the lifting arm 700 from bumping into the lifting frame when lifting to the maximum elevation angle of more than 86 degrees, and preventing the lifting arm 700 from damaging the lifting frame.

In one possible implementation, the method further includes: a reinforcing rod 612; one end of the reinforcing rod 612 is hinged with the connecting rod 614, the other end of the reinforcing rod 612 is hinged with the limit buffer rod 611, the reinforcing rod 612 is suitable for supporting and reinforcing the limit buffer rod 611, the stability of the limit buffer rod 611 is improved, and the limit buffer rod 611 is prevented from being broken after being impacted.

In one possible implementation, the body of the lifting arm 700 is of a long pole type structure; a fourth pulley 660 and a pin shaft are arranged on one side of the lifting arm 700; two ends of the pin shaft are respectively fixed at the head part of the lifting arm 700 through two fixed ear plates; the fourth pulley 660 is rotatably arranged on the pin shaft, the steel wire rope passes through the first pulley 630 to be led to the fourth pulley 660 for causing the suspension arm 700, and is sleeved on the fourth pulley 660, and the steel wire rope realizes the suspension of the suspension arm 700 through the friction force of the fourth pulley 660.

In one possible implementation, the first winch hook section includes: a first winch 810 and a first hook 800; the first winch 810 adopts a hydraulic motor to drive a reduction gear box, and a steel wire rope roller is connected to the outside of the reduction gear box. The first winch 810 is arranged at one end of the lifting arm 700 close to the rotating platform, and the first lifting hook 800 is arranged at one end of the lifting arm 700 far away from the rotating platform; the first winch 810 is connected to the first hook 800 by a wire rope. As shown in fig. 3, a first winch 810 is fixed inside a lifting arm 700 through a mounting plate, a steel wire rope is mounted on a roller of the first winch 810, the steel wire rope is pulled to a first lifting hook 800, and the lifting and falling of the first lifting hook 800 are controlled by winding and unwinding the steel wire rope through forward rotation and reverse rotation of the roller; it should be noted that, the first hook 800 is a 50t hook of the lifting device, and is suitable for lifting objects with large weight.

In one possible implementation, the first hook 800 is provided with a mobile pulley block; the lower part of the movable pulley block is connected with a first lifting hook 800; the steel wire rope is connected with the first lifting hook 800 through the movable pulley block; the number of strands is increased by increasing the number of movable pulleys. The movable pulley block is located below the fourth pulley 660. As shown in fig. 7, the movable pulley block includes three pulleys: fifth pulley 820, sixth pulley 830, seventh pulley 840; the three pulleys are all provided with pin shafts, two ends of each pin shaft are fixed on the head part of the lifting arm 700 through fixed lug plates, and the three pulleys are arranged on the pin shafts in a rolling mode. The wire rope is connected to the first hook 800 through the fifth pulley 820, the sixth pulley 830, and the seventh pulley 840, respectively. Because the upper part of the first lifting hook 800 is a movable pulley block, the steel wire rope is wound by winding the fifth pulley 820, the sixth pulley 830, the seventh pulley 840 and the fourth pulley 660 on the derrick mast head structure of the movable pulley block.

In one possible implementation, the lifting arm 700 is provided with a secondary arm 710; the secondary boom 710 is located at an end of the boom 700 remote from the pivoting platform. A predetermined angle is provided between the body length direction of the sub-boom 710 and the body length direction of the lifting arm 700.

In one possible implementation, the second winch hook section includes: a second winch 910 and a second hook 900; the second winch 910 is disposed at an end of the lifting arm 700 adjacent to the rotating platform, and the second lifting hook 900 is disposed at an end of the auxiliary boom 710; the second winch 910 is connected to the second hook 900 by a wire rope. As shown in fig. 3 and 7, the second winch 910 is fixed inside the lifting arm 700 through a mounting plate, a wire rope is mounted on a drum of the second winch 910, the wire rope is pulled to the second lifting hook 900, and the wire rope is retracted through forward rotation and reverse rotation of the drum so as to control lifting and dropping of the second lifting hook 900; it should be noted that, the second hook 900 is a 10t small hook of the lifting device, and is suitable for lifting objects with smaller weight.

In one possible implementation, the second winch hook section further includes: a second pulley 930 and a third pulley 920; the second pulley 930 is disposed adjacent to the third pulley 920 between the second winch 910 and the second hook 900, and the wire rope sequentially passes through the second pulley 930 and the third pulley 920 to be connected with the second hook 900. Further, the second pulley 930 is rotatably disposed at one end of the auxiliary boom 710 connected to the boom 700 through a shaft pin, and the third pulley 920 is rotatably disposed at the middle of the auxiliary boom 710 through a shaft pin; under the supporting action of the second pulley 930 and the third pulley 920, the wire rope is convenient to move and can avoid friction damage caused by contact with the sub-boom 710.

In one possible implementation, the method further includes: the crane cab platform assembly 500, the crane cab platform assembly 500 is arranged on the rotary table 100, and a control console is arranged in the crane cab platform assembly, and is suitable for controlling the lifting and lowering of the lifting arm 700; rotation of the rotary platform and other functions. Further, the control operation panel adopts Mitsubishi PLC control, the Mitsubishi PLC control drives the rotary table 100 to realize rotation by controlling a rotation driving hydraulic motor, the Mitsubishi PLC control realizes the amplitude variation of the lifting arm 700 by controlling the amplitude variation winch 300, and the Mitsubishi PLC control realizes the lifting and lowering functions of the two lifting hooks by controlling the first winch 810 and the second winch 910.

In one possible implementation, the method further includes: the power machine room assembly 400, the power machine room assembly 400 is arranged on the rotary table 100; the output end of 2 165KW motors arranged in the power machine room assembly 400 is respectively connected with two hydraulic pumps in a driving way, the motors are used as power sources to drive the two hydraulic pumps, and the hydraulic pumps provide hydraulic power for the hydraulic motors.

The foregoing description of embodiments of the application has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A lifting device, which comprises a lifting device, characterized by comprising the following steps: a hoisting part, an amplitude winch and a rotary platform;

The rotary platform includes: a base and a rotary table; the rotary table is movably arranged on the base, and the lifting part and the amplitude winch are arranged on the rotary table;

The lifting part includes: the lifting frame and the lifting arm; one end of the lifting frame is fixedly arranged on the rotary platform, and a first pulley is arranged at the other end of the lifting frame; one end of the lifting arm is hinged to one side of the rotary platform, and the amplitude winch is connected with the other end of the lifting arm through the first pulley;

The lifting arm is provided with a first winch lifting hook part and a second winch lifting hook part, and the first winch lifting hook part and the second winch lifting hook part are both suitable for lifting a heavy object.

2. The lifting apparatus of claim 1, wherein the swivel platform further comprises: a slewing bearing;

The rotary platform is arranged on the inner side of the rotary bearing, and the base is fixed on the outer side of the rotary bearing.

3. The lifting apparatus of claim 1, wherein the lifting frame comprises: two triangular frames and more than two connecting rods;

The two triangular frames are oppositely arranged, and more than two connecting rods are arranged between the two triangular frames.

4. A lifting device according to claim 3, wherein the top ends of both of the tripods are provided with a fixing plate;

The first pulley is rotatably arranged between the two fixing plates.

5. The lifting apparatus of claim 1, further comprising: the first maintenance platform and the second maintenance platform;

The first maintenance platform is arranged on one side of the base, and the second maintenance platform is arranged at one end of the lifting frame.

6. A lifting apparatus according to claim 3, wherein the lifting frame further comprises: a limit buffer rod;

one end of the limiting buffer rod is arranged on one side of the tripod, and the other end of the limiting buffer rod is provided with buffer glue.

7. The lifting apparatus of claim 1, wherein the first winch hook section comprises: the first winch and the first lifting hook;

The first winch is arranged at one end of the lifting arm close to the rotary platform, and the first lifting hook is arranged at one end of the lifting arm far away from the rotary platform;

the first winch is connected with the first lifting hook through a steel wire rope.

8. Hoisting device according to claim 1, characterized in that the hoisting arm is provided with a secondary boom;

The auxiliary suspension arm is positioned at one end of the lifting arm far away from the rotary platform.

9. The hoisting apparatus of claim 8, wherein the second winch hook section comprises: the second winch and the second lifting hook;

The second winch is arranged at one end of the lifting arm close to the rotary platform, and the second lifting hook is arranged at one end of the auxiliary lifting arm;

The second winch is connected with the second lifting hook through a steel wire rope.

10. The lifting apparatus of claim 9, wherein the second winch hook section further comprises: a second pulley and a third pulley;

The second pulley and the third pulley are adjacently arranged between the second winch and the second lifting hook, and the steel wire rope sequentially passes through the second pulley and the third pulley.