Crane lifting appliance for lifting pipes

Abstract

The utility model discloses a crane sling for hoisting pipes, and relates to the technical field of loading and unloading. The clamping device comprises a clamping mechanism, the clamping mechanism comprises a first motor fixedly connected to the right side of a first driving box, an output shaft of the first motor is fixedly connected with a two-way threaded rod through a coupler, and the left end of the two-way threaded rod extends to the inner wall of the left side of the first driving box and is rotationally connected with the first driving box. When the pipe is lifted through the clamping mechanism, the clamping plate can adapt to various pipe sizes, so that the pipes with different sizes can be clamped and taken, the pipes with different pipe diameters can be lifted on the same set of lifting appliance, a special lifting appliance does not need to be arranged for the pipe with each pipe diameter, and the lifting appliance is simple in structure and convenient to use. The universality of the lifting appliance is greatly improved, the production operation of an enterprise is facilitated, and meanwhile, when the enterprise purchases equipment, a large number of special lifting appliances for different pipe diameters do not need to be purchased, so that the purchase cost of the equipment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of loading and unloading technology, and in particular relates to a crane lifting device for lifting pipes. Background Technology

[0002] Pipe hoisting is an important logistics operation that requires suitable hoisting equipment, such as cranes and hoists. Before hoisting, the pipes must be checked for secure fixing to ensure safety. The appropriate hoisting method, such as single-point hoisting or multi-point hoisting, should be selected based on the pipe length, weight, and hoisting environment. During the process, balance and stability must be maintained to prevent the pipes from slipping or colliding, ensuring the smooth progress of the hoisting operation.

[0003] The existing lifting equipment for lifting pipes is not suitable for clamping and lifting pipes of different diameters. As a result, different lifting equipment is required when dealing with pipes of different diameters, which greatly reduces the versatility of the lifting equipment. At the same time, when purchasing equipment, special lifting equipment for different pipe diameters may be purchased, which increases the equipment procurement cost. Utility Model Content

[0004] The purpose of this utility model is to provide a crane lifting device for lifting pipes. By providing a clamping mechanism, it solves the problem that some existing crane lifting devices for lifting pipes are not convenient for clamping and lifting pipes of different diameters.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a crane lifting device for lifting pipes, comprising a first drive box and a second drive box. The first drive box is equipped with a clamping mechanism and an adjusting mechanism.

[0007] The clamping mechanism includes a motor fixedly connected to the right side of a drive housing. The output shaft of the motor is fixedly connected to a bidirectional threaded rod via a coupling. The left end of the bidirectional threaded rod extends to the left inner wall of the drive housing and is rotatably connected to the drive housing. Two internal threaded blocks are threadedly connected to the bidirectional threaded rod. Both internal threaded blocks are slidably connected to the inner wall of the drive housing. A sliding groove is provided at the bottom of the drive housing. The bottoms of both internal threaded blocks extend to the bottom of the drive housing and are slidably connected to the sliding groove. A clamping plate is fixedly connected to the bottom of both internal threaded blocks. Several V-shaped blocks are fixedly connected to the side of the two clamping plates that are close to each other.

[0008] Furthermore, the adjustment mechanism includes a connecting column fixedly connected to the top of the drive box, and a lifting ring is fixedly connected to the top of the connecting column.

[0009] Furthermore, a rotating shaft is rotatably connected to the inner wall of the second drive box, the bottom end of the rotating shaft extends to the outside of the second drive box and is rotatably connected to the second drive box, and a rotating disk is fixedly connected to the bottom end of the rotating shaft.

[0010] Furthermore, a gear is fixedly connected to the upper part of the first rotating shaft, a second motor is fixedly connected to the inner bottom wall of the second drive box, and the output shaft of the second motor is fixedly connected to the second rotating shaft via a shaft coupling.

[0011] Furthermore, a threaded rod is rotatably connected to the inner wall of the second drive box, and pulleys are fixedly connected to the threaded rod and the second shaft, with a belt sleeved between the two pulleys.

[0012] Furthermore, the threaded rod is threadedly connected to an internal threaded block two, and the inner wall of the drive box two is fixedly connected to a limit rod.

[0013] Furthermore, the internal threaded block two is slidably connected to the limiting rod, and a rack is fixedly connected to the right side of the internal threaded block two, the rack meshing with a gear.

[0014] Furthermore, the bottom of the drive box two is provided with an annular sliding groove, and the top of the rotating disk is fixedly connected with several support rods, the top ends of the several support rods extending into the interior of the annular sliding groove and slidingly connected to the annular sliding groove.

[0015] This utility model has the following beneficial effects:

[0016] 1. By setting up a clamping mechanism, starting motor one drives the bidirectional threaded rod to rotate. When the bidirectional threaded rod rotates, it drives the internal threaded block one to move on the inner wall of drive box one. When the internal threaded block one moves, it drives the clamping plate to move. When the clamping plate moves, it drives the V-shaped block to move. When lifting pipes through the clamping mechanism, the clamping plate can adapt to various pipe sizes, so that pipes of different sizes can be clamped and retrieved. Different pipe diameters can be lifted on the same set of lifting tools, eliminating the need to equip each pipe diameter with a special lifting tool. This greatly improves the versatility of the lifting tools, facilitates the production operation of enterprises, and at the same time, enterprises do not need to purchase a large number of special lifting tools for different pipe diameters when purchasing equipment, thereby reducing equipment procurement costs and saving a lot of money.

[0017] 2. By setting up an adjustment mechanism, motor two is started, which drives shaft two to rotate. When shaft two rotates, it drives the threaded rod to rotate through the pulley and belt. When the threaded rod rotates, it drives the internal threaded block two to slide on the limit rod. When the internal threaded block two moves, it drives the rack to move. When the rack moves, it drives the gear to rotate. When the gear rotates, it drives shaft one to rotate. When shaft one rotates, it drives the rotating disk to rotate. In turn, the rotation of the rotating disk drives drive box one to rotate. The adjustment mechanism can precisely control the direction of the pipe and place the pipe at a specific angle in the target position, so that the pipe is spliced ​​according to the designed angle, thereby improving construction quality and efficiency. At the same time, when clamping the pipe, if the pipe angle does not match the clamp, it reduces the large amount of time that may be spent manually adjusting the clamp. It also avoids the operator being exposed to a dangerous environment when manually adjusting the clamp and pipe.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the drive box of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the drive box II of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the second motor of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Drive box one; 2. Clamping mechanism; 3. Adjustment mechanism; 21. Motor one; 22. Bidirectional threaded rod; 23. Internal threaded block one; 24. Slide groove; 25. Clamping plate; 26. V-block; 31. Drive box two; 32. Connecting column; 33. Lifting ring; 34. Rotating shaft one; 35. Rotating disk; 36. Gear; 37. Motor two; 38. Rotating shaft two; 39. Threaded rod; 310. Pulley; 311. Belt; 312. Internal threaded block two; 313. Limiting rod; 314. Rack; 315. Annular slide groove; 316. Support rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5As shown, this utility model is a crane lifting device for lifting pipes, including a drive box 1 and a drive box 2 31. The drive box 1 is equipped with a clamping mechanism 2 and an adjusting mechanism 3. The clamping mechanism 2 includes a motor 21 fixedly connected to the right side of the drive box 1. The output shaft of the motor 21 is fixedly connected to a bidirectional threaded rod 22 via a coupling. The left end of the bidirectional threaded rod 22 extends to the left inner wall of the drive box 1 and is rotatably connected to the drive box 1. Two internal threaded blocks 23 are threadedly connected to the bidirectional threaded rod 22. Both internal threaded blocks 23 are slidably connected to the inner wall of the drive box 1. A sliding groove 24 is provided at the bottom of the drive box 1. The bottoms of the two internal threaded blocks 23 extend to the bottom of the drive box 1 and are slidably connected to the sliding groove 24. Each internal threaded block 23 has a clamping plate 25 fixedly connected to its bottom. Several V-shaped blocks 26 are fixedly connected to the side of each clamping plate 25 that is close to each other. When the pipe is lifted by the clamping mechanism 2, the clamping plates 25 can adapt to various pipe sizes, allowing for the clamping and handling of pipes of different sizes. This enables the lifting of pipes of different diameters on the same set of lifting equipment, eliminating the need for specialized lifting equipment for each pipe diameter. This greatly improves the versatility of the lifting equipment, facilitating production operations. Furthermore, when purchasing equipment, companies do not need to buy a large number of specialized lifting equipment for different pipe diameters, thus reducing equipment procurement costs and saving significant funds. The adjustment mechanism 3 includes a connection fixedly connected to the top of the drive box 31. A column 32 is connected to a lifting ring 33 at its top. A rotating shaft 34 is rotatably connected to the inner wall of the drive box 31. The bottom end of the rotating shaft 34 extends to the outside of the drive box 31 and is rotatably connected to it. A rotating disk 35 is fixedly connected to the bottom end of the rotating shaft 34. A gear 36 is fixedly connected to the top of the rotating shaft 34. A motor 37 is fixedly connected to the inner bottom wall of the drive box 31. The output shaft of the motor 37 is fixedly connected to a rotating shaft 38 via a coupling. A threaded rod 39 is rotatably connected to the inner wall of the drive box 31. Pulleys 310 are fixedly connected to both the threaded rod 39 and the rotating shaft 38. A belt 311 is fitted between the two pulleys 310. An internal threaded block 312 is threadedly connected to the threaded rod 39. A limiting rod 313 is fixedly connected to the inner wall of drive box 31. A threaded block 312 is slidably connected to the limiting rod 313. A rack 314 is fixedly connected to the right side of the threaded block 312, meshing with a gear 36. An annular groove 315 is provided at the bottom of drive box 31. Several support rods 316 are fixedly connected to the top of the rotating disk 35. The tops of the support rods 316 extend into the annular groove 315 and slidably connect to it. The direction of the pipe can be precisely controlled by adjusting mechanism 3, placing the pipe at a specific angle to the target position, allowing the pipe to be spliced ​​according to the designed angle, thereby improving construction quality and efficiency. Simultaneously, when clamping the pipe, if the pipe angle does not match the clamp, ...This reduces the significant time potentially spent manually adjusting clamps and avoids exposing operators to hazardous environments when they are close to the pipe and clamps during manual adjustment.

[0029] A specific application of this embodiment is as follows: Start motor 21, motor 21 drives bidirectional threaded rod 22 to rotate. When bidirectional threaded rod 22 rotates, it drives internal threaded block 23 to move on the inner wall of drive box 1. The inner wall of drive box 1 limits the internal threaded block 23, converting the rotational motion of internal threaded block 23 into linear motion. When internal threaded block 23 moves, it drives clamping plate 25 to move. When clamping plate 25 moves, it drives V-block 26 to move. The V-blocks 26 on the two clamping plates 25 are interlocked and cooperate with each other, thereby clamping the pipe through V-blocks 26.

[0030] Motor 2 37 is started, which drives shaft 2 38 to rotate. When shaft 2 38 rotates, it drives threaded rod 39 to rotate through pulley 310 and belt 311. When threaded rod 39 rotates, it drives internal thread block 2 312 to slide on limit rod 313. Limit rod 313 limits internal thread block 2 312, converting its rotational motion into linear motion. When internal thread block 2 312 moves, it drives rack 314 to move. When rack 314 moves, it drives gear 36 to rotate. When gear 36 rotates, it drives shaft 1 34 to rotate. When shaft 1 34 rotates, it drives rotating disk 35 to rotate. In turn, the rotation of rotating disk 35 drives drive box 1 to rotate, thereby adjusting the clamping angle of clamping mechanism 2. When rotating disk 35 rotates, it drives support rod 316 to slide in annular groove 315. Support rod 316 supports the rotation of rotating disk 35. At the same time, lifting ring 33 is connected to lifting equipment, and the pipe can be lifted.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A crane sling for hoisting pipes, comprising a drive box one (1) and a drive box two (31), a clamping mechanism (2) and an adjusting mechanism (3) are arranged on the drive box one (1), characterized in that: the clamping mechanism (2) comprises a motor one (21) fixedly connected to the right side of the drive box one (1), the output shaft of the motor one (21) is fixedly connected with a bidirectional threaded rod (22) through an axle coupling, the left end of the bidirectional threaded rod (22) extends to the left inner wall of the drive box one (1) and is rotatably connected with the drive box one (1), two inner threaded blocks one (23) are threadedly connected on the bidirectional threaded rod (22), the two inner threaded blocks one (23) are both slidably connected with the inner wall of the drive box one (1), a sliding groove (24) is formed in the bottom of the drive box one (1), the bottoms of the two inner threaded blocks one (23) both extend to the bottom of the drive box one (1) and are slidably connected with the sliding groove (24), the bottoms of the two inner threaded blocks one (23) are both fixedly connected with clamping plates (25), and the sides of the two clamping plates (25) close to each other are both fixedly connected with a plurality of V-shaped blocks (26).

2. A crane sling for hoisting pipe according to claim 1, characterised in that The adjusting mechanism (3) comprises a connecting column (32) fixedly connected to the top of the drive box two (31), and a lifting ring (33) is fixedly connected to the top of the connecting column (32).

3. A crane sling for hoisting tubular goods according to claim 2, characterised in that, A rotating shaft one (34) is rotatably connected to the inner wall of the drive box two (31), the bottom end of the rotating shaft one (34) extends to the outside of the drive box two (31) and is rotatably connected with the drive box two (31), and a rotating disc (35) is fixedly connected to the bottom end of the rotating shaft one (34).

4. A crane sling for hoisting tubulars according to claim 3, characterized in that A gear (36) is fixedly connected to the rotating shaft one (34), a motor two (37) is fixedly connected to the inner bottom wall of the drive box two (31), and a rotating shaft two (38) is fixedly connected to the output shaft of the motor two (37) through an axle coupling.

5. A crane sling for hoisting tubulars according to claim 4, characterized in that A threaded rod (39) is rotatably connected to the inner wall of the drive box two (31), and belt pulleys (310) are fixedly connected to the rotating shaft two (38) and the threaded rod (39) in turn.

6. A crane sling for hoisting tubulars according to claim 5, characterized in that An inner threaded block two (312) is threadedly connected to the threaded rod (39), and a limiting rod (313) is fixedly connected to the inner wall of the drive box two (31).

7. A crane sling for hoisting tubulars according to claim 6, characterized in that The inner threaded block two (312) is slidably connected with the limiting rod (313), a rack (314) is fixedly connected to the right side of the inner threaded block two (312), and the rack (314) is engaged with the gear (36).

8. A crane sling for hoisting tubulars according to claim 7, characterized in that An annular sliding groove (315) is formed in the bottom of the drive box two (31), a plurality of supporting rods (316) are fixedly connected to the top of the rotating disc (35), and the top ends of the plurality of supporting rods (316) extend to the inside of the annular sliding groove (315) and are slidably connected with the annular sliding groove (315).

Images