CN215854773U

CN215854773U - Engineering machine tool structure hangs commentaries on classics device

Info

Publication number: CN215854773U
Application number: CN202122201018.6U
Authority: CN
Inventors: 周颖; 门临安
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-12
Filing date: 2021-09-12
Publication date: 2022-02-18
Anticipated expiration: 2031-09-12

Abstract

The utility model discloses a hoisting and rotating device for an engineering mechanical structural part, which comprises a limiting mechanism, an adjusting mechanism and a counterweight mechanism, wherein the limiting mechanism comprises a fixed platform, a connecting shell, a motor connecting shell and a first connecting rod, the fixed platform is fixedly connected with a supporting platform, the supporting platform is fixedly connected with a reinforcing plate, the connecting shell is fixedly connected with the fixed platform, the motor connecting shell is fixedly connected with a motor, the first connecting rod is fixedly connected with a driven gear, and the first connecting rod is fixedly connected with the first connecting plate. Carry out the shock attenuation through telescopic link and spring to the balancing weight and support, guarantee that the counter weight device is stable when moving, compress tightly the balancing weight top through splint through rotating a screw thread bull stick, guarantee that the balancing weight is placed stably, avoid a screw thread bull stick to take place to rotate when moving through screwing up fixing bolt, lead to being connected between splint and the balancing weight not hard up.

Description

Engineering machine tool structure hangs commentaries on classics device

Technical Field

The utility model relates to the field of material hoisting, in particular to a hoisting and rotating device for an engineering mechanical structural part.

Background

The engineering machinery is an important component of equipment industry, is generally called as engineering machinery as mechanical equipment necessary for comprehensive mechanical construction engineering required by earth and stone construction engineering, pavement construction and maintenance, mobile hoisting, loading and unloading operation and various construction engineering, and is mainly used in the fields of national defense construction engineering, traffic transportation construction, energy industry construction and production, raw material industry construction and production of mines and the like, agriculture and forestry water conservancy construction, industrial and civil construction, urban construction, environmental protection and the like.

Partial material and equipment need hang and change, and traditional hoist device lacks stop gear when using, leads to partial part to receive torsion when rotating and damages, and most hoist device lacks counter weight mechanism, leads to the device operation unstable, and the device lacks the regulation measure, is not convenient for hang the material. Therefore, the engineering machinery structural part hoisting device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The embodiment provides an engineering machine tool structure hangs commentaries on classics device for solve part material and equipment and need hang the commentaries on classics among the prior art, traditional hoist device lacks stop gear when using, leads to some parts to receive torsion damage when rotating, and most hoist device lacks counter weight mechanism, leads to the unstable problem of device operation.

According to one aspect of the utility model, the engineering mechanical structural part hoisting device comprises a limiting mechanism, an adjusting mechanism and a counterweight mechanism, wherein the limiting mechanism comprises a fixed table, a connecting shell, a motor connecting shell, a first connecting rod and a limiting rod, the fixed table is fixedly connected with a supporting table, the supporting table is fixedly connected with a reinforcing plate, the connecting shell is fixedly connected with the fixed table, the motor connecting shell is fixedly connected with a motor, the first connecting rod is fixedly connected with a driven gear, the first connecting rod is fixedly connected with the first connecting plate, the limiting rod is fixedly connected with the first connecting plate, and the limiting rod is slidably connected with a limiting plate;

the adjusting mechanism comprises a second connecting rod, a first connecting groove, a second connecting plate, a second sliding groove, a second connecting groove and a second steel wire rope, the second connecting rod is fixedly connected with the limiting plate, the second connecting rod is fixedly connected with the connecting outer arm, the connecting outer arm is connected with the connecting inner arm in a sliding way, the first connecting groove is fixedly connected with the connecting inner arm, the first connecting groove is rotationally connected with the first connecting block, the first connecting block is fixedly connected with the first steel wire rope, the second connecting plate is fixedly connected with the first steel wire rope, the second sliding chute is fixedly connected with the second connecting plate, the second sliding groove is connected with the second sliding block in a sliding way, the second connecting groove is fixedly connected with the second sliding block, the second connecting groove is rotatably connected with the second connecting block, the second steel wire rope is fixedly connected with the second connecting block, and the second steel wire rope is fixedly connected with the hook;

the counter weight mechanism comprises a third connecting rod, a fixed plate, a fixed frame, a first threaded rotating rod, a third connecting plate and a spring, the third connecting rod is fixedly connected with a driven gear, the third connecting rod is connected with a connecting shell in a sliding mode, the fixed plate is fixedly connected with the third connecting rod, the fixed frame is fixedly connected with the fixed plate, the first threaded rotating rod is slidably connected with the fixed frame, the first threaded rotating rod is rotatably connected with the clamping plate, the third connecting plate is fixedly connected with the telescopic rod, the telescopic rod is fixedly connected with the balancing weight, the spring is fixedly connected with the third connecting plate, the spring is fixedly connected with the balancing weight, the torsion is limited by a limiting mechanism, the part is prevented from being damaged by the torsion, the material is convenient to fix through an adjusting mechanism, and the counter weight mechanism ensures that the device runs stably.

Furthermore, four supporting tables are arranged at the bottom of the fixed table and are distributed on the surface of the bottom of the fixed table in a rectangular mode, two ends of the reinforcing plate are fixedly connected with the supporting tables, and the reinforcing plate is fixedly connected with the fixed table.

Further, the connecting shell is respectively connected with the driving gear and the driven gear in a rotating mode, the driving gear is meshed with the driven gear, and the driving gear is fixedly connected with the motor.

Furthermore, two limiting rods are arranged on the surface of the first connecting plate, and the two limiting rods are symmetrically distributed on the surface of the first connecting plate.

Furthermore, the limiting rod is fixedly connected with an electro-hydraulic push rod, the electro-hydraulic push rod is fixedly connected with the limiting plate, and the electro-hydraulic push rod is respectively located at the central positions of the connecting plate and the limiting plate.

Furthermore, connect outer arm and No. two electric liquid push rods fixed connection, No. two electric liquid push rods with connect inner arm fixed connection, and No. two electric liquid push rods are located and connect inside the outer arm.

Furthermore, two second chutes are arranged inside the second connecting plate, and the two second chutes are symmetrically distributed inside the second connecting plate.

Furthermore, No. two sliders are in threaded connection with No. two threaded rotating rods, the No. two threaded rotating rods are in sliding connection with No. two electro-hydraulic push rods, and the No. two threaded rotating rods are in rotating connection with No. two sliding grooves.

Further, mount and spout fixed connection, and a spout and a slider sliding connection, a slider and splint fixed connection, mount and threaded connection pipe fixed connection, and threaded connection pipe and a screw thread bull stick threaded connection, threaded connection pipe and fixing bolt threaded connection, and fixing bolt runs through threaded connection pipe and a screw thread bull stick fixed connection.

Further, No. three connecting plate surfaces are provided with a plurality of telescopic links, and are a plurality of telescopic link evenly distributed is on No. three connecting plate surfaces, and the telescopic link is located inside the spring, No. three connecting plates and mount laminating, splint and balancing weight surface laminating.

According to the embodiment of the utility model, the torsion is limited by the limiting mechanism, so that the parts are prevented from being damaged by the torsion, the material is convenient to fix by the adjusting mechanism, and the stable operation of the device is ensured by the counterweight mechanism.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a partial enlarged structure at B in fig. 2 according to an embodiment of the present invention.

In the figure: 1. a fixed platform, 2, a supporting platform, 3, a connecting shell, 4, a first connecting rod, 5, a first connecting plate, 6, a first electric-hydraulic push rod, 7, a limiting plate, 8, a limiting rod, 9, a second connecting rod, 10, a connecting outer arm, 11, a connecting inner arm, 12, a first steel wire rope, 13, a second connecting plate, 14, a second steel wire rope, 15, a hook, 16, a reinforcing plate, 17, a motor connecting shell, 18, a motor, 19, a driving gear, 20, a driven gear, 21, a third connecting rod, 22, a fixing plate, 23, a second electric-hydraulic push rod, 24, a first connecting groove, 25, a first connecting block, 26, a fixing frame, 27, a threaded connecting pipe, 28, a first threaded rotating rod, 29, a fixing bolt, 30, a clamping plate, 31, a first chute, 32, a first sliding block, 33, a third connecting plate, 34, a telescopic rod, 35, a spring, 36, a balancing weight, 37 and a second chute, 38. no. two sliders, 39, No. two screw rotating rods, 40, No. two connecting grooves, 41 and No. two connecting blocks.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The adjusting mechanism in this embodiment may be applicable to various hoisting apparatuses, for example, the following engineering mechanical structural component hoisting device is provided in this embodiment, and the adjusting mechanism in this embodiment may be used to hoist the device to adjust the hoisting position.

A lifting and rotating device for an engineering mechanical structural part comprises a base, wherein a locking universal wheel is fixedly connected with the base, the base is connected with a transition plate through a rotating mechanism, the rotating mechanism comprises a mounting groove formed in the base, a first motor is fixedly connected to the bottom in the mounting groove, an output end of the first motor is fixedly connected with an output shaft, a ring groove is formed in the top of the base, two symmetrically-arranged support rods are arranged on the inner side wall of the ring groove, and the support of the transition plate is realized through the matching use of the support rods and the ring groove; the top parts of the two support rods are fixedly connected with the bottom part of the transition plate, the bottom part of the transition plate is fixedly connected with the top part of the output shaft, the top part of the transition plate is fixedly connected with the bottom part of the vertical beam, the top part of the transition plate is fixedly connected with the vertical beam, the outer side wall of the vertical beam is slidably connected with a placing plate, the outer side wall of the vertical beam is connected with a winding mechanism, the winding mechanism comprises a rotating shaft which is rotatably connected with the outer side wall of the vertical beam, the outer side wall of the rotating shaft is fixedly sleeved with a winding drum, one end of the rotating shaft, far away from the vertical beam, is fixedly connected with a limiting plate, the limiting plate is provided with a plurality of limiting ports which are arranged in an annular shape, the vertical beam is provided with a limiting groove corresponding to the limiting ports, the same limiting rod is inserted into the limiting groove and the corresponding limiting ports, and the winding drum is fixed through the matching use of the limiting rod, the limiting groove and the limiting rod, so that the height of the placing plate is fixed; the winding mechanism is connected with the placing plate through a traction mechanism, the traction mechanism comprises a traction line fixedly connected to the outer side wall of the winding drum, the outer side wall of the vertical beam is fixedly connected with a plurality of wire rollers, the traction line penetrates through the wire rollers to be connected with the placing plate, the placing plate is provided with an adjusting mechanism, the adjusting mechanism comprises a second motor fixedly connected to the outer side wall of the placing plate, an adjusting groove is formed in the placing plate, the output end of the second motor is fixedly connected with a lead screw, the lead screw penetrates through the adjusting groove and is rotatably connected with the inner side wall of the adjusting groove, and the adjusting groove is slidably connected with the outer side wall of the threaded block, so that the lead screw is prevented from driving the threaded block to rotate together; lead screw lateral wall threaded connection has the thread piece, thread piece lateral wall and adjustment tank inside wall sliding connection place board top fixedly connected with fixed block, the fixed block lateral wall rotates and is connected with the arm, arm tip fixedly connected with lifting hook, the arm passes through coupling mechanism with adjustment mechanism to be connected, coupling mechanism includes the first connecting block of fixed connection at the arm lateral wall, thread piece lateral wall fixedly connected with second connecting block, first connecting block passes through the connecting rod with the second connecting block and is connected.

Of course, this embodiment may also be used to provide supporting services for other transfer devices. Here, description is not repeated, and a description is provided below of the engineering mechanical structural member hoisting device according to an embodiment of the present invention.

Referring to fig. 1-4, an engineering machinery structural member hoisting device comprises a limiting mechanism, an adjusting mechanism and a counterweight mechanism, wherein the limiting mechanism comprises a fixed platform 1, a connecting shell 3, a motor connecting shell 17, a first connecting rod 4 and a limiting rod 8, the fixed platform 1 is fixedly connected with a supporting platform 2, the supporting platform 2 is fixedly connected with a reinforcing plate 16, the connecting shell 3 is fixedly connected with the fixed platform 1, the motor connecting shell 17 is fixedly connected with a motor 18, the first connecting rod 4 is fixedly connected with a driven gear 20, the first connecting rod 4 is fixedly connected with a first connecting plate 5, the limiting rod 8 is fixedly connected with the first connecting plate 5, and the limiting rod 8 is slidably connected with a limiting plate 7;

the adjusting mechanism comprises a second connecting rod 9, a first connecting groove 24, a second connecting plate 13, a second sliding groove 37, a second connecting groove 40 and a second steel wire rope 14, the second connecting rod 9 is fixedly connected with a limiting plate 7, the second connecting rod 9 is fixedly connected with a connecting outer arm 10, the connecting outer arm 10 is slidably connected with a connecting inner arm 11, the first connecting groove 24 is fixedly connected with the connecting inner arm 11, the first connecting groove 24 is rotatably connected with a first connecting block 25, the first connecting block 25 is fixedly connected with a first steel wire rope 12, the second connecting plate 13 is fixedly connected with a first steel wire rope 12, the second sliding groove 37 is fixedly connected with a second connecting plate 13, the second sliding groove 37 is slidably connected with a second sliding block 38, the second connecting groove 40 is fixedly connected with a second sliding block 38, the second connecting groove 40 is rotatably connected with a second connecting block 41, the second steel wire rope 14 is fixedly connected with a second connecting block 41, the second steel wire rope 14 is fixedly connected with the hook 15;

counterweight mechanism includes No. three connecting rods 21, fixed plate 22, mount 26, a screw bull stick 28, No. three connecting plates 33 and spring 35, No. three connecting

rods

21 and 20 fixed connection of driven gear, and No. three connecting rods 21 and be connected 3 sliding connection of casing, fixed plate 22 and No. three connecting rods 21 fixed connection, mount 26 and fixed plate 22 fixed connection, a screw bull stick 28 and mount 26 sliding connection, and a screw bull stick 28 rotates with splint 30 to be connected, No. three connecting plates 33 and telescopic link 34 fixed connection, and telescopic link 34 and balancing weight 36 fixed connection, spring 35 and No. three connecting plates 33 fixed connection, and spring 35 and balancing weight 36 fixed connection.

The bottom of the fixed table 1 is provided with four supporting tables 2, the four supporting tables 2 are distributed on the surface of the bottom of the fixed table 1 in a rectangular shape, two ends of a reinforcing plate 16 are fixedly connected with the supporting tables 2, the reinforcing plate 16 is fixedly connected with the fixed table 1, the connecting shell 3 is respectively connected with a driving gear 19 and a driven gear 20 in a rotating mode, the driving gear 19 is meshed with the driven gear 20, the driving gear 19 is fixedly connected with a motor 18, the surface of the first connecting plate 5 is provided with two limiting rods 8, the two limiting rods 8 are symmetrically distributed on the surface of the first connecting plate 5, the limiting rods 8 are fixedly connected with the first electric-hydraulic push rod 6, the first electric-hydraulic push rod 6 is fixedly connected with a limiting plate 7, the first electric-hydraulic push rod 6 is respectively located at the central positions of the first connecting plate 5 and the limiting plate 7, and the connecting outer arm 10 is fixedly connected with the second electric-hydraulic push rod 23, the second electro-hydraulic push rod 23 is fixedly connected with the inner connecting arm 11, the second electro-hydraulic push rod 23 is located inside the outer connecting arm 10, two second sliding grooves 37 are formed in the second connecting plate 13, the two second sliding grooves 37 are symmetrically distributed inside the second connecting plate 13, the second sliding block 38 is in threaded connection with the second threaded rotating rod 39, the second threaded rotating rod 39 is in sliding connection with the second electro-hydraulic push rod 23, the second threaded rotating rod 39 is in rotating connection with the second sliding grooves 37, the fixing frame 26 is fixedly connected with the first sliding groove 31, the first sliding groove 31 is in sliding connection with the first sliding block 32, the first sliding block 32 is fixedly connected with the clamping plate 30, the fixing frame 26 is fixedly connected with the threaded connecting pipe 27, the threaded connecting pipe 27 is in threaded connection with the first threaded rotating rod 28, the threaded connecting pipe 27 is in threaded connection with the fixing bolt 29, and the fixing bolt 29 penetrates through the threaded connecting pipe 27 and is fixedly connected with the first threaded rotating rod 28, no. three connecting plate 33 surfaces are provided with a plurality of telescopic links 34, and are a plurality of telescopic link 34 evenly distributed is on No. three connecting plate 33 surfaces, and telescopic link 34 is located inside spring 35, No. three connecting plate 33 and the laminating of mount 26, splint 30 and the laminating of balancing weight 36 surfaces.

When the utility model is used, the hook 15 is hung on the upper part of a material to be lifted, the second threaded rotating rod 39 is rotated to drive the second sliding block 38 to slide according to the size of the material, the position of the hook 15 is adjusted, the material is conveniently lifted by adjusting the position of the hook 15, the material is stably hung, the direction of the hook 15 can be adjusted by rotating the second connecting block 41 along the second connecting groove 40, the material is conveniently fixed, the position of the material is horizontally moved, the material is lifted by extending the first electro-hydraulic push rod 6, the first electro-hydraulic push rod 6 is subjected to torsion when the surface devices of the limiting plate 7 and the limiting rod 8 rotate, the first electro-hydraulic push rod 6 is damaged, the second electro-hydraulic push rod 23 is extended and shortened to adjust the horizontal position of the connecting inner arm 11, the driving gear 19 is driven to rotate by opening the motor 18, the driven gear 20 is driven to rotate by the driving gear 19, the position of a material is moved, the material is convenient to carry, the fixed platform 1 is configured by the balancing weight 36 to keep the device stable during hoisting, meanwhile, when the driven gear 20 drives the material to move, the position of the balancing weight 36 and the material move in reverse directions, the gravity center position at the bottom of the fixed platform 1 is guaranteed to always stabilize the hoisting material to the maximum extent, the hoisting is guaranteed to be stable, when the balancing weight 36 is placed on the upper portion of the fixed frame 26, the balancing weight 36 is attached to the fixed frame 26 through the third connecting plate 33, the balancing weight 36 is supported through the telescopic rod 34, the fingers are prevented from being crushed by the balancing weight 36, meanwhile, the balancing weight 36 is damped and supported through the telescopic rod 34 and the spring 35, the device for the balancing weight 36 is guaranteed to be stable during operation, the top of the balancing weight 36 is pressed through the clamping plate 30 by rotating the first threaded rotating rod 28, the balance weight block 36 is ensured to be placed stably, and the first threaded rotating rod 28 is prevented from rotating during operation by tightening the fixing bolt 29, so that the connection between the clamping plate 30 and the balance weight block 36 is loosened.

The utility model has the advantages that:

1. the material lifting device has an adjusting measure, the material lifting device is hung on the upper part of a material to be lifted through the hook, the second threaded rotating rod is rotated to drive the second sliding block to slide according to the size of the material, the position of the hook is adjusted, the material is conveniently lifted through adjusting the position of the hook, the material is stably hung, the direction of the hook can be adjusted through the rotation of the second connecting block along the second connecting groove, and the material is conveniently fixed;

2. the utility model has a counter weight measure, the device is stable when the counter weight is used for configuring and maintaining the fixed station, meanwhile, when the driven gear drives the material to move, the position of the balancing weight and the material move reversely, the gravity center position at the bottom of the fixed platform is ensured to always carry out maximum voltage stabilization on the hoisting material, the hoisting stability is ensured, when the balancing weight is placed at the upper part of the fixed frame, the third connecting plate is jointed with the fixed frame, the balancing weight is supported by the telescopic rod, the fingers of a person are prevented from being crushed by the balancing weight, meanwhile, the counterweight block is supported by the telescopic rod and the spring in a damping way, so that the counterweight block device is stable in operation, the top of the balancing weight is pressed tightly by rotating the first threaded rotating rod and the clamping plate, so as to ensure the stable placement of the balancing weight, the fixing bolt is screwed to prevent the first threaded rotating rod from rotating during operation, so that the connection between the clamping plate and the balancing weight is loosened;

3. the utility model discloses it is rational in infrastructure, carry out horizontal migration to the position of material, mention the material through extending an electricity liquid push rod, No. one electricity liquid push rod receives torsion when rotating through limiting plate and gag lever post surface device, lead to an electricity liquid push rod harm, extend, shorten the horizontal position of connecting the inner arm and adjust through No. two electricity liquid push rods, drive the driving gear through opening the motor and rotate, drive driven gear through the driving gear and rotate, move the position of material, be convenient for carry the material.

It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an engineering machine tool structure hangs commentaries on classics device which characterized in that: the limiting mechanism comprises a fixing platform (1), a connecting shell (3), a motor connecting shell (17), a first connecting rod (4) and a limiting rod (8), the fixing platform (1) is fixedly connected with a supporting platform (2), the supporting platform (2) is fixedly connected with a reinforcing plate (16), the connecting shell (3) is fixedly connected with the fixing platform (1), the motor connecting shell (17) is fixedly connected with a motor (18), the first connecting rod (4) is fixedly connected with a driven gear (20), the first connecting rod (4) is fixedly connected with a first connecting plate (5), the limiting rod (8) is fixedly connected with the first connecting plate (5), and the limiting rod (8) is slidably connected with a limiting plate (7);

the adjusting mechanism comprises a second connecting rod (9), a first connecting groove (24), a second connecting plate (13), a second sliding groove (37), a second connecting groove (40) and a second steel wire rope (14), the second connecting rod (9) is fixedly connected with the limiting plate (7), the second connecting rod (9) is fixedly connected with the outer connecting arm (10), the outer connecting arm (10) is slidably connected with the inner connecting arm (11), the first connecting groove (24) is fixedly connected with the inner connecting arm (11), the first connecting groove (24) is rotatably connected with the first connecting block (25), the first connecting block (25) is fixedly connected with the first steel wire rope (12), the second connecting plate (13) is fixedly connected with the first steel wire rope (12), the second sliding groove (37) is fixedly connected with the second connecting plate (13), and the second sliding groove (37) is slidably connected with the second sliding block (38), the second connecting groove (40) is fixedly connected with the second sliding block (38), the second connecting groove (40) is rotatably connected with the second connecting block (41), the second steel wire rope (14) is fixedly connected with the second connecting block (41), and the second steel wire rope (14) is fixedly connected with the hook (15);

the counterweight mechanism comprises a third connecting rod (21), a fixing plate (22), a fixing frame (26), a first threaded rotating rod (28), a third connecting plate (33) and a spring (35), the third connecting rod (21) is fixedly connected with the driven gear (20), the third connecting rod (21) is connected with the connecting shell (3) in a sliding way, the fixed plate (22) is fixedly connected with the third connecting rod (21), the fixing frame (26) is fixedly connected with the fixing plate (22), the first threaded rotating rod (28) is connected with the fixing frame (26) in a sliding manner, a first threaded rotating rod (28) is rotationally connected with the clamping plate (30), a third connecting plate (33) is fixedly connected with a telescopic rod (34), and telescopic link (34) and balancing weight (36) fixed connection, spring (35) and No. three connecting plate (33) fixed connection, and spring (35) and balancing weight (36) fixed connection.

2. The engineering machinery structure hoisting device according to claim 1, characterized in that: the supporting platform is characterized in that four supporting platforms (2) are arranged at the bottom of the fixed platform (1), the supporting platforms (2) are distributed on the surface of the bottom of the fixed platform (1) in a rectangular mode, two ends of each reinforcing plate (16) are fixedly connected with the supporting platforms (2), and the reinforcing plates (16) are fixedly connected with the fixed platform (1).

3. The engineering machinery structure hoisting device according to claim 1, characterized in that: the connecting shell (3) is respectively connected with a driving gear (19) and a driven gear (20) in a rotating mode, the driving gear (19) is meshed with the driven gear (20), and the driving gear (19) is fixedly connected with a motor (18).

4. The engineering machinery structure hoisting device according to claim 1, characterized in that: the surface of the first connecting plate (5) is provided with two limiting rods (8), and the two limiting rods (8) are symmetrically distributed on the surface of the first connecting plate (5).

5. The engineering machinery structure hoisting device according to claim 1, characterized in that: gag lever post (8) and an electricity liquid push rod (6) fixed connection, No. one electricity liquid push rod (6) and limiting plate (7) fixed connection, and No. one electricity liquid push rod (6) are located connecting plate (5) and limiting plate (7) central point respectively and put.

6. The engineering machinery structure hoisting device according to claim 1, characterized in that: the connecting outer arm (10) is fixedly connected with a second electro-hydraulic push rod (23), the second electro-hydraulic push rod (23) is fixedly connected with the connecting inner arm (11), and the second electro-hydraulic push rod (23) is located inside the connecting outer arm (10).

7. The engineering machinery structure hoisting device according to claim 1, characterized in that: no. two connecting plate (13) inside is provided with No. two spout (37), two No. two spout (37) symmetric distribution is inside No. two connecting plate (13).

8. The engineering machinery structure hoisting device according to claim 1, characterized in that: no. two slider (38) and No. two screw thread bull stick (39) threaded connection, No. two screw thread bull stick (39) and No. two electric liquid push rod (23) sliding connection, and No. two screw thread bull stick (39) and No. two spout (37) are rotated and are connected.

9. The engineering machinery structure hoisting device according to claim 1, characterized in that: mount (26) and a spout (31) fixed connection, and a spout (31) and a slider (32) sliding connection, slider (32) and splint (30) fixed connection, mount (26) and threaded connection pipe (27) fixed connection, and threaded connection pipe (27) and a screw bull stick (28) threaded connection, threaded connection pipe (27) and fixing bolt (29) threaded connection, and fixing bolt (29) run through threaded connection pipe (27) and a screw bull stick (28) fixed connection.

10. The engineering machinery structure hoisting device according to claim 1, characterized in that: no. three connecting plate (33) surfaces are provided with a plurality of telescopic links (34), and are a plurality of telescopic link (34) evenly distributed is on No. three connecting plate (33) surfaces, and telescopic link (34) are located inside spring (35), No. three connecting plate (33) and mount (26) laminating, splint (30) and balancing weight (36) surface laminating.