CN223779837U

CN223779837U - Novel four hoisting point hoist

Info

Publication number: CN223779837U
Application number: CN202520461628.5U
Authority: CN
Inventors: 胡旭; 董灵全; 姚兆晗; 姚文庭; 麻子月
Original assignee: Henan Dafang Heavy Machinery Co Ltd
Current assignee: Henan Dafang Heavy Machinery Co Ltd
Priority date: 2025-03-17
Filing date: 2025-03-17
Publication date: 2026-01-09
Anticipated expiration: 2035-03-17

Abstract

The utility model discloses a novel four-lifting-point lifting appliance, which comprises a bridge frame, a movable trolley frame, a winding drum lifting mechanism and a lifting mechanism, wherein the movable trolley frame is arranged on the bridge frame, the winding drum lifting mechanism is arranged on the movable trolley frame, the lifting mechanism is arranged below the winding drum lifting mechanism, four groups of pulley block mechanisms which are symmetrically arranged between the lifting mechanism and the winding drum lifting mechanism and used for improving the stability of the lifting mechanism are arranged between the lifting mechanism and the winding drum lifting mechanism, and the lifting mechanism comprises a lifting part and a movable part. According to the utility model, the sliding block can be driven to slide in the sliding groove through the rotation of the lead screw, and then the lifting hook piece arranged on the connecting plate can be driven to carry out position adjustment, so that the position of the lifting hook piece is more suitable for the lifting connection point of a workpiece, and the lifting effect is improved.

Description

Novel four hoisting point hoist

Technical Field

The utility model relates to the technical field of cranes, in particular to a novel four-lifting-point lifting appliance.

Background

The lifting mechanisms used in the crane equipment in China are generally single hooks or double hooks, even if the double hooks are used for lifting heavy objects at the same time, the requirement on the synchronous effect between the lifting mechanisms is not very strict, and the lifting mechanisms only need to be lifted at the same time, which is determined by the characteristics of working conditions or the heavy objects, but special conditions exist, when the heavy objects are lifted, the four lifting points of the lifting appliance are required to realize complete synchronization, the lifting appliance is required to be lifted to be at an absolute level, the lifting effect is improved, the working conditions have higher requirements on the lifting appliance, and the problem of synchronism is difficult to solve by electric control alone.

Through searching, the utility model patent document with the bulletin number of CN210825204U discloses a high-precision four-hanging-point synchronous lifting appliance, which comprises a frame of a crane, wherein a lifting mechanism is arranged above the frame, a four-point lifting appliance is arranged below the frame and is connected with the four-point lifting appliance through a steel wire rope, a tension sensor is arranged at the joint of the steel wire rope and the four-point lifting appliance and is connected with a controller, a plurality of hollow guide cone sleeves are arranged on the periphery of the four-point lifting appliance, a telescopic guide cone rod is arranged right above the guide cone, and one end of the guide cone rod, which is far away from the guide cone sleeve, is fixedly connected with the lower part of the frame.

When the workpieces with different shapes and sizes are hoisted, the positions of the lifting hooks need to be adjusted, so that the lifting hooks can better correspond to the lifting points of the workpieces, in the lifting tool, the positions of the lifting hooks are fixed on the lower surface of the four-point lifting tool, the positions of the lifting hooks are not easy to adjust, if the lifting hooks are misplaced with the lifting points of the workpieces, the gravity center of the workpieces can deviate, inclination or shaking is generated in the lifting process, and the risk of out of control and collision in the lifting process is increased.

Disclosure of utility model

The utility model aims to provide a novel four-lifting-point lifting appliance, which can change the position of a lifting hook so as to enable the lifting hook to better correspond to the position of a lifting point of a workpiece, and improve the stability of the lifting process.

The utility model adopts the following technical scheme:

The novel four-lifting-point lifting appliance comprises a bridge frame, a movable trolley frame, a winding drum lifting mechanism and a lifting mechanism, wherein the movable trolley frame is arranged on the bridge frame, the winding drum lifting mechanism is arranged on the movable trolley frame, the lifting mechanism is arranged below the winding drum lifting mechanism, four groups of pulley block mechanisms which are symmetrically arranged between the lifting mechanism and the winding drum lifting mechanism and used for improving the stability of the lifting mechanism are arranged between the lifting mechanism and the winding drum lifting mechanism, the lifting mechanism comprises a lifting part and a movable part, the lifting part is connected with the pulley block mechanism,

The hoisting part comprises a hoisting frame, and the movable part comprises a cross-shaped mounting frame and four groups of connecting plates for mounting the lifting hook members.

Optionally, the reel lifting mechanism comprises a driving unit, three first supporting beams arranged vertically, two second supporting beams arranged transversely and reel assemblies symmetrically arranged on the upper surface of the first supporting beams.

Optionally, the first support beam and the second support beam are connected and fixed to each other by bolts.

Optionally, a driving unit is fixedly mounted on the upper surface of the first support beam in the middle, and is connected with the reel assembly.

Optionally, the middle part of the hoisting frame is provided with an installation groove communicated with the outside, and the installation frame is fixedly arranged in the installation groove of the hoisting frame.

Optionally, four mutually perpendicular's spout has been seted up to the upper surface of mounting bracket, and the spout internal rotation is provided with the lead screw, and lead screw surface screw thread is provided with the slider, and the slider slides in the spout.

Optionally, the inner bottom surface of the chute is symmetrically provided with a through groove communicated with the outside, the two connecting plates are fixed on the lower end surface of the sliding block, and the connecting plates slide in the through groove.

Optionally, the pulley block mechanism includes first pulley block, second pulley block, third pulley block and fourth pulley block, and first pulley block is fixed to be set up at the upper surface of hoist and mount frame, and the second pulley block is fixed to be set up at the upper surface of second supporting beam, and the third pulley block is fixed to be set up at the lateral surface of second supporting beam, and the fourth pulley block is fixed to be set up at the upper surface of hoist and mount frame of keeping away from first pulley block.

Optionally, a fixing plate is fixedly arranged on the outer side surface of the second support beam at a position corresponding to the fourth pulley block.

In summary, the utility model has the following beneficial effects:

1. According to the utility model, the sliding block can be driven to slide in the sliding groove through the rotation of the lead screw, and then the lifting hook piece arranged on the connecting plate can be driven to carry out position adjustment, so that the position of the lifting hook piece is more suitable for the lifting connection point of a workpiece, and the lifting effect is improved;

2. According to the utility model, through the matched connection of the steel wire rope and the pulley block mechanisms, the load on the hoisting frame can be distributed to the connection points, single-point stress is reduced, the safety risk in the hoisting process is reduced, the shaking of the hoisting frame in the hoisting process can be effectively reduced, and the stability of the hoisting process is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a hoisting portion according to the present utility model;

FIG. 3 is a second schematic structural view of the hoisting part of the present utility model;

fig. 4 is a schematic structural view of a hoisting portion according to the present utility model.

In the figure, 1, a bridge, 2, a movable trolley frame, 3, a reel lifting mechanism, 4, a lifting assembly, 5, a pulley block mechanism, 31, a first supporting beam, 32, a reel assembly, 33, a driving unit, 34, a second supporting beam, 341, a fixed plate, 41, a lifting frame, 42, a mounting frame, 421, a sliding chute, 422, a through groove, 43, a lead screw, 44, a sliding block, 441, a connecting plate, 45, a driving motor, 51, a first pulley block, 52, a second pulley block, 53, a third pulley block, 54 and a fourth pulley block.

Detailed Description

The principles and spirit of the present utility model are explained in detail below with reference to several representative embodiments thereof.

Referring to fig. 1-4, the present utility model is described in detail below with reference to the accompanying drawings and examples:

As shown in fig. 1-2, a novel four-lifting-point lifting appliance comprises a bridge frame 1, a movable trolley frame 2, a winding drum lifting mechanism 3 and a lifting mechanism, wherein the movable trolley frame 2 is arranged on the bridge frame 1, the winding drum lifting mechanism 3 is arranged on the movable trolley frame 2, the winding drum lifting mechanism 3 is driven to transversely move through the movable trolley frame 2, the lifting mechanism is arranged below the winding drum lifting mechanism 3, four groups of pulley block mechanisms 5 which are symmetrically arranged between the lifting mechanism and the winding drum lifting mechanism 3 and used for improving the stability of the lifting mechanism are arranged, and the lifting mechanism comprises a lifting part and a movable part.

The bridge frame 1 and the movable trolley frame 2 are in the prior art, the bridge frame 1 is used as a main body frame of the bridge crane, spans over tracks on two sides of a workshop or a warehouse, and the movable trolley frame 2 transversely moves on the tracks of the bridge frame 1 to drive the winding drum lifting mechanism 3 to move.

As shown in fig. 2, the spool hoisting mechanism 3 includes a driving unit 33, three vertically arranged first support beams 31, two horizontally arranged second support beams 34, and a spool assembly 32 symmetrically arranged on the upper surface of the first support beams 31, the first support beams 31 and the second support beams 34 being fixed to each other by bolts.

As shown in fig. 2, a driving unit 33 is fixedly installed on the upper surface of the first support beam 31 located in the middle, and the driving unit 33 is connected to the drum assembly 32 to drive the movement of the drum assembly 32, and the driving unit 33 and the drum assembly 32 are both prior art and not described in detail herein.

As shown in fig. 2, in the present embodiment, the hanging part includes a hanging frame 41, and the movable part includes a cross-shaped mounting frame 42 and four sets of connection plates 441 for mounting hanging pieces.

As shown in fig. 2, the main body frame of the lifting frame 41 is composed of hollow rigid connecting rods, so that the overall weight of the lifting frame 41 can be reduced, an installation groove communicated with the outside is formed in the middle of the lifting frame 41, and the installation frame 42 is fixedly arranged in the installation groove of the lifting frame 41.

As shown in fig. 2 and 4, four mutually perpendicular sliding grooves 421 are formed in the upper surface of the mounting frame 42, a screw rod 43 is rotatably arranged in the sliding grooves 421, a sliding block 44 is arranged on the surface of the screw rod 43 in a threaded manner, the sliding block 44 slides in the sliding grooves 421, through grooves 422 communicated with the outside are symmetrically formed in the inner bottom surface of the sliding grooves 421, two connecting plates 441 are fixed on the lower end surface of the sliding block 44, the connecting plates 441 slide in the through grooves 422, and the combined use of the two connecting plates 441 can facilitate the installation of the hook member.

Specifically, by rotating the screw 43, the slider 44 can be driven to slide in the sliding groove 421, and then the hook member mounted on the connecting plate 441 can be driven to adjust the position, so that the position of the hook member is more suitable for the hoisting connection point of the workpiece, and the hoisting effect is improved.

As shown in fig. 2, a drive motor 45 having an output shaft fixed to one end of the screw 43 is fixedly provided on the outer side surface of the hoist frame 41, and the screw 43 is rotated by the drive motor 45.

As shown in fig. 3, in the present embodiment, the pulley block mechanism 5 includes a first pulley block 51, a second pulley block 52, a third pulley block 53 and a fourth pulley block 54, where the pulley blocks are all composed of pulleys and a fixed seat, and the pulleys are rotatably disposed on the fixed seat, which is the prior art.

As shown in fig. 3, the first pulley block 51 is fixedly disposed on the upper surface of the lifting frame 41, the second pulley block 52 is fixedly disposed on the upper surface of the second support beam 34, the third pulley block 53 is fixedly disposed on the outer side surface of the second support beam 34, and the fourth pulley block 54 is fixedly disposed on the upper surface of the lifting frame 41 far from the first pulley block 51.

As shown in fig. 3, in the present embodiment, a fixing plate 341 is fixedly disposed on the outer side surface of the second support beam 34 at a position corresponding to the fourth pulley block 54.

Specifically, the wire rope wound from the reel assembly 32 passes through the first pulley block 51 and is in sliding fit, then passes through the second pulley block 52 and is in sliding fit, then passes through the third pulley block 53 and is in sliding fit, then passes through the fourth pulley block 54 and is in sliding fit, finally the outer end of the wire rope is fixedly arranged on the lower surface of the fixed plate 341, and the wire rope is connected with the pulley block mechanisms 5 in a matching manner, so that the load on the lifting frame 41 can be distributed to a plurality of connection points, single-point stress is reduced, the safety risk in the lifting process is reduced, the shaking of the lifting frame 41 in the lifting process can be effectively reduced, and the stability of the lifting process is improved.

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one of the elements" does not exclude the presence of additional identical elements in a commodity or system comprising the element.

While the foregoing description illustrates and describes the preferred embodiments of the present application, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as expressed herein, either as a result of the foregoing teachings or as a result of the knowledge or technology of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the application are intended to be within the scope of the appended claims.

Claims

1. A novel four-lifting-point lifting appliance is characterized by comprising a bridge frame, a movable trolley frame, a winding drum lifting mechanism and a lifting mechanism, wherein the movable trolley frame is arranged on the bridge frame, the winding drum lifting mechanism is arranged on the movable trolley frame, the lifting mechanism is arranged below the winding drum lifting mechanism, four groups of pulley block mechanisms which are symmetrically arranged between the lifting mechanism and the winding drum lifting mechanism and used for improving the stability of the lifting mechanism are arranged between the lifting mechanism and the winding drum lifting mechanism, the lifting mechanism comprises a lifting part and a movable part, the lifting part is connected with the pulley block mechanism,

2. The novel four-lifting-point lifting appliance of claim 1, wherein the reel lifting mechanism comprises a driving unit, three first supporting beams arranged vertically, two second supporting beams arranged transversely and reel assemblies symmetrically arranged on the upper surface of the first supporting beams.

3. The novel four-hanging-point sling as defined in claim 2, wherein the first supporting beam and the second supporting beam are connected and fixed with each other through bolts.

4. The novel four-point sling as defined in claim 2, wherein the upper surface of the first support beam is fixedly mounted with a driving unit connected to the reel assembly.

5. The novel four-lifting-point lifting appliance according to claim 1, wherein the middle part of the lifting frame is provided with a mounting groove communicated with the outside, and the mounting frame is fixedly arranged in the mounting groove of the lifting frame.

6. The novel four-lifting-point lifting appliance according to claim 1, wherein four mutually perpendicular sliding grooves are formed in the upper surface of the mounting frame, a lead screw is rotatably arranged in each sliding groove, a sliding block is arranged on the surface of each lead screw in a threaded manner, and the sliding blocks slide in the sliding grooves.

7. The novel four-hanging-point lifting appliance according to claim 1, wherein through grooves communicated with the outside are symmetrically formed in the inner bottom surface of the sliding groove, two connecting plates are fixed on the lower end surface of the sliding block, and the connecting plates slide in the through grooves.

8. The novel four-lifting-point lifting appliance of claim 2, wherein the pulley block mechanism comprises a first pulley block, a second pulley block, a third pulley block and a fourth pulley block, the first pulley block is fixedly arranged on the upper surface of the lifting frame, the second pulley block is fixedly arranged on the upper surface of the second supporting beam, the third pulley block is fixedly arranged on the outer side surface of the second supporting beam, and the fourth pulley block is fixedly arranged on the upper surface of the lifting frame far away from the first pulley block.

9. The novel four-lifting-point lifting appliance of claim 8, wherein a fixing plate is fixedly arranged on the outer side surface of the second supporting beam at a position corresponding to the fourth pulley block.