Lifting appliance device suitable for large circular ring type workpieces

Abstract

The utility model relates to the technical field of circular ring type workpiece lifting appliance devices, and particularly discloses a lifting appliance device suitable for large circular ring type workpieces, which comprises a support frame, a plurality of sliding beams are arranged on the support frame in the radial direction, and a step groove is arranged at the intersection of the centers of the sliding beams; a limiting sliding rail is radially arranged on each sliding beam, a movable supporting arm is arranged in each limiting sliding rail, a lifting plate is arranged at the upper end of each movable supporting arm, and a lifting arm assembly is arranged at the lower end of each movable supporting arm; the upper end of the suspension arm assembly is arranged in the limiting sliding rail. A shutter assembly is arranged at the lower end of the hanging plate, and the lower end of the shutter assembly is movably arranged in the step groove. The lifting appliance is simple in structure, convenient to operate and capable of achieving quick disassembly, the clamping range of the lifting appliance can be flexibly set according to the size of a workpiece, transferring and clamping of large circular ring type workpieces of multiple sizes and specifications are achieved, the stability and safety of workpiece clamping are guaranteed, the lifting appliance can be suitable for high-temperature, toxic and other severe production conditions, universality is improved, transferring efficiency is improved, and the working efficiency is improved. The production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting devices for circular ring-like workpieces, in particular to a hoisting device suitable for large circular ring-like workpieces. Background Art

[0002] In the manufacturing field, large annular workpieces are widely used in the manufacture of marine diesel engines, wind power gearbox components, gearboxes and other parts, such as gears, gear rings, bushings, etc. In the production and processing process, multiple steps are often required to complete, and the workpiece needs to be transferred between the processing steps. In the prior art, since large annular workpieces are of different sizes and difficult to grasp and fix, tools such as slings are often used to fix the annular workpieces at three points, and then the workpieces are transferred to the designated location by a crane, and finally the slings are removed to complete the transfer.

[0003] Since the sling is a flexible tool, it is not limited by the size and structure of the workpiece when bundling and fixing it. Therefore, it can be used to lift various structural workpieces. However, due to the limited load capacity of the sling, the scope of application for large workpieces is limited and the versatility is not strong. At the same time, in order to ensure that the workpiece does not fall during transportation, the sling bundling process is relatively complicated. After transportation to the destination, the operator needs to operate the unbinding, which is time-consuming and labor-intensive, seriously affecting the lifting efficiency of the workpiece and increasing labor costs. In addition, if the workpiece is under harsh production conditions such as high temperature and toxicity, the sling lifting cannot be used at all, which increases the lifting cost.

[0004] At the same time, due to the heavy weight of the workpiece itself and the smooth surface, coupled with the influence of oil pollution in some processes, the sling can easily slide to one side during the transportation process, causing the workpiece to be cut obliquely and lose its center of gravity, causing quality accidents and personal safety accidents.

[0005] Therefore, in order to solve the problems in the prior art that the lifting operation during the transportation of large circular ring-like workpieces is complicated, affecting the lifting efficiency, and the lifting process is not safe and stable enough, it is now necessary to provide a lifting device suitable for large circular ring-like workpieces. Utility Model Content

[0006] The utility model aims to provide a hoisting device suitable for large circular workpieces, so as to solve the problems in the prior art of complex hoisting operation of large circular workpieces, low hoisting efficiency, and unsafe and unstable transportation process.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model specifically provides a lifting device suitable for large circular workpieces, which is suitable for large circular workpieces of various sizes and specifications, and realizes a fast disassembly, safe and efficient transportation process. The lifting device includes a support frame, on which a plurality of sliding beams are radially arranged, and a step groove is arranged at the central intersection of the sliding beams; each of the sliding beams is radially arranged with a limit slide rail, and a movable support arm is arranged in the limit slide rail, and a hanging plate is arranged at the upper end of the movable support arm, and a hanging arm assembly is arranged at the lower end of the movable support arm; the upper end of the hanging arm assembly is arranged in the limit slide rail; the lower end of the hanging plate is provided with an opener and closeer assembly, and the lower end of the opener and closeer assembly is movably arranged in the step groove.

[0009] The principles and advantages of this solution are:

[0010] In this solution, a support frame structure is used in conjunction with an opener and closer assembly, so that the sling can be used in harsh production conditions such as high temperature and toxicity, thereby improving the versatility of the sling. At the same time, by controlling the opener and closer assembly through the up and down movement of the support frame, automatic unhooking operation can be achieved, simplifying the operation process, reducing the labor intensity of operators, ensuring operation safety, and improving operation efficiency. And because the surface of large circular workpieces is relatively smooth, a boom assembly is used to clamp and fix the workpiece from multiple directions including the bottom and side of the workpiece, thereby fixing the workpiece and ensuring that the workpiece does not tilt and fall during transportation. At the same time, this solution uses a slidable movable support arm and an adjustable boom assembly, which can flexibly adjust the diameter range and height of the sling clamp according to the size of the workpiece, thereby meeting the lifting of workpieces of various specifications.

[0011] The advantages of applying this solution are:

[0012] 1. The clamping range can be flexibly set according to the size of the workpiece, with high versatility, simple structure, and convenient operation. It can realize automatic unhooking operation after transfer, reducing the labor of operators, improving transfer efficiency, and reducing labor costs and production costs.

[0013] 2. It can stably clamp various workpieces, improve the stability and safety of the transfer process, and can be applied to harsh production conditions such as high temperature and toxicity. It has a wide range of uses and ensures the quality of workpieces and personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a lifting device suitable for large circular workpieces of the utility model;

[0015] Figure 2 This is a schematic cross-sectional structure diagram of a lifting device suitable for large circular workpieces of the utility model;

[0016] Figure 3 This is a structural schematic diagram of a hanging plate of a hanging device suitable for large circular workpieces of the utility model;

[0017] Figure 4 This is a structural schematic diagram of an opener and closeer assembly of a sling device suitable for large annular workpieces according to the utility model;

[0018] Figure 5 This is a schematic diagram of the initial application structure of a lifting device suitable for large-sized circular workpieces of the utility model;

[0019] Figure 6 This is a schematic diagram of the clamping process structure of a hanger device suitable for large-sized annular workpieces according to the utility model;

[0020] Figure 7 The utility model is a structural schematic diagram of a lifting state of a lifting device suitable for large circular ring-like workpieces. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The figure marks in the drawings of the specification include: support frame 1, sliding beam 2, step groove 3, limiting slide rail 4, movable support arm 5, long support arm 51, short support arm 52, hanging plate 6, positioning plate 61, lifting ring 62, connecting earring 63, suspension arm assembly 7, upper suspension arm 71, lower suspension arm 72, sliding seat 73, connecting shaft 74, positioning pin 75, first clamping rod 76, second clamping rod 78, opener and closer assembly 8, outer shell 81, upper guide sleeve 82, T-shaped guide pin 83, lower guide sleeve 84, first corrugated guide surface 85, second corrugated guide surface 86, upper guide surface 87, lower guide surface 88, trapezoidal fixing block 89, workpiece 9.

[0023] This embodiment is basically as shown in the attached Figure 1 As shown: A lifting device suitable for large circular ring-like workpieces, suitable for the transportation of large ring forgings with an outer diameter of φ2000~φ4000mm and a weight of 1t~15t. The lifting device has a simple structure, and the lifting device size can be reasonably set according to the size range of factory parts to achieve the transportation of large circular ring-like parts of multiple sizes and specifications, improve the versatility of the lifting device, and quickly disassemble, ensure safe and efficient lifting, and improve the efficiency of transportation operations. At the same time, the lifting device of this scheme can be reused under harsh working conditions such as high temperature and toxicity, and has a wider range of use, effectively extending the service life of the lifting device and reducing labor costs. The lifting device of this scheme includes a support frame 1 with an overall circular ring structure to ensure the supporting strength of the support frame 1, which can be used for the lifting of various workpieces. Four sliding beams 2 are welded in the radial direction of the support frame 1. In this embodiment, the four sliding beams 2 are arranged in a cross shape, and a step groove 3 with a rectangular structure is provided at the central intersection of the four sliding beams 2. In this embodiment, combined with the attached Figure 2 As shown, the cross section of the step groove 3 is a C-shaped structure, and the two sides of the upper end and the lower end cavity form a step shape.

[0024] A limit slide rail 4 is radially provided on each sliding beam 2, and a movable arm 5 is slidably installed in each limit slide rail 4. In this embodiment, each group of movable arms 5 includes a long arm 51 and a short arm 52. The upper end of the long arm 51 is hinged on the hanging plate 6 in a gathered state, and the lower end of the long arm 51 is slidably installed in the limit slide rail 4 and can slide radially in the limit slide rail 4. The upper end of the short arm 52 is hinged to the long arm 51 by bolts and can rotate around the hinge point, and the lower end of the short arm 52 is hinged to the root of the sliding beam 2 by bolts and can rotate around the hinge point on the sliding beam 2. In this embodiment, the length of the long arm 51 is set to twice the length of the short arm 52, and the upper end of the short arm 52 is hinged at half the length of the long arm 51, so that the long arm and the short arm can rotate more flexibly and reach the maximum width range to adapt to the clamping of workpieces of various sizes.

[0025] In this embodiment, the upper end of the movable arm 5 is connected to the hanging plate 6, and the hanging plate 6 cooperates with the crane to install the lifting device on the crane for lifting the workpiece. Figure 3 As shown, the hanging plate 6 includes a circular positioning plate 61, on which a lifting ring 62 is integrally formed, and the sling is hung on the traveling crane through the lifting ring 62. A plurality of connecting earrings 63 are circumferentially arranged on the lower end of the lifting ring 62, i.e., on the positioning plate 61. In this embodiment, the connecting earrings 63 are arranged in four groups according to the number of the movable supporting arms 5, and the upper end of the long supporting arm 51 is hinged to the connecting earring 63 above the corresponding position by bolts, and can rotate around the axis in the connecting earring 63.

[0026] As attached Figure 1 As shown, a boom assembly 7 is installed at the lower end of the long arm 51 by bolts. The boom assembly 7 follows the long arm 51 to slide radially in the limiting slide rail 4. Figure 2 As shown, the boom assembly 7 is a telescopically adjustable boom assembly, mainly comprising an upper boom 71 and a lower boom 72, wherein the lower end of the upper boom 71 is movably sleeved on the upper end of the lower boom 72. In this embodiment, a plurality of positioning holes are arranged in parallel on the upper boom 71, a plurality of limiting holes cooperating with the positioning holes are arranged on the lower boom 72, a positioning pin 75 is movably arranged in the positioning hole, and the lower boom 72 is movably installed in the upper boom 71 through the positioning pin 75.

[0027] A U-shaped sliding seat 73 is welded to the upper end of the upper suspension arm 71, a through hole is provided on the sliding seat 73, a connecting shaft 74 is provided in the through hole, and the connecting shaft 74 is movably embedded in the limiting slide rail 4, so that the upper suspension arm 71 is slidably connected to the limiting slide rail 4. The lower end of the long support arm 51 is hinged on the connecting shaft 74, and the upper suspension arm 71 is driven to slide radially in the limiting slide rail 4 by the movement of the long support arm 51.

[0028] Combined with Figure 2 As shown, a clamping structure is integrally formed at the lower end of the lower suspension arm 72, and the workpiece is clamped by the clamping structure. In this embodiment, the clamping structure includes a first clamping rod 76 disposed at the bottom of the lower suspension arm 72, and a second clamping rod 78 disposed above the first clamping rod 76. In this embodiment, the length of the first clamping rod 76 is greater than the length of the second clamping rod 78. The bottom of the workpiece is supported and clamped by the first clamping rod 76, and the four surfaces of the workpiece are clamped and fixed by the second clamping rod 78 to ensure the stability and safety of the workpiece and prevent it from tilting or falling off.

[0029] As attached Figure 1 and attached Figure 2 As shown, a shutter assembly 8 is installed at the lower end of the hanging plate 6, and the lower end of the shutter assembly 8 can be movably embedded in the step groove 3 to achieve the fixing or moving operation of the movable support arm 5, thereby achieving the clamping operation of the workpiece. The shutter assembly 8 includes a housing 81 installed at the lower end of the positioning plate 61. Figure 4 As shown, an upper guide sleeve 82, a T-shaped guide pin 83 and a lower guide sleeve 84 are installed in the housing 81, and the transverse end of the T-shaped guide pin 83 is located between the upper guide sleeve 82 and the lower guide sleeve 84, and the lower end of the T-shaped guide pin 83 passes through the lower guide sleeve 84 and contacts the step groove 3. In this embodiment, a first corrugated guide surface 85 is provided at the lower end of the upper guide sleeve 82, and a second corrugated guide surface 86 is provided at the upper end of the lower guide sleeve 84. In this embodiment, the waveforms of the first corrugated guide surface 85 and the second corrugated guide surface 86 are staggered and adapted, that is, the troughs and crests are staggered and adapted. An upper guide surface 87 is provided at the upper end of the transverse end of the T-shaped guide pin 83, and a lower guide surface 88 is provided at the lower end, wherein the upper guide surface 87 is adapted to the first corrugated guide surface 85, and the lower guide surface 88 is adapted to the second corrugated guide surface 86, and the crests and troughs of the upper guide surface 87 and the lower guide surface 88 are staggered. During the up and down movement of the sling, the T-shaped guide pin 83 can achieve a 90° reversal through the cooperation of the upper guide surface 87 and the lower guide surface 88 , so as to be embedded in the step groove 3 or pulled out from the step groove 3 .

[0030] A trapezoidal fixing block 89 is integrally formed at the lower end of the T-shaped guide pin 83 . The trapezoidal fixing block 89 is movable in the step groove 3 through the rotation of the T-shaped guide pin 83 , and can be embedded in the step groove 3 to fix the movable support arm 5 .

[0031] The specific implementation process is as follows:

[0032] As attached Figure 1 To Attachment Figure 7 As shown, first, as shown in the attached Figure 5As shown, the trapezoidal fixing block 89 of the T-shaped guide pin 83 is stuck in the step groove 3, so that the movable support arm 5 is fixed. According to the height of the workpiece, the relative position between the upper suspension arm 71 and the lower suspension arm 72 is adjusted to adjust the length of the suspension arm assembly 7 so that the suspension arm assembly 7 matches the height of the workpiece 9, and the clamping structure at the lower end of the lower suspension arm 72 can contact the bottom of the workpiece 9 and clamp it.

[0033] Use the crane hook to lift the whole sling through the lifting ring 62, move it to the top of the workpiece 9 to be hoisted, and place the sling device at the center of the upper end surface of the workpiece. Then control the crane to descend, as shown in the attached Figure 6 As shown, at this time, the movable arm 5 slides the long arm 51 outward in the limiting slide rail 4 under the thrust of the hanging plate 6, and at the same time the T-shaped guide pin 83 descends, and with the cooperation of the corrugated guide surface, the T-shaped guide pin 83 is forced to change direction by 90°, so that the trapezoidal fixing block 89 and the step groove 3 are separated from the step groove 3 in the same direction.

[0034] Control the vehicle to rise, as shown in the attached Figure 7 As shown, at this time, the movable arm 5 is in an active state. Driven by the hanging plate 6, the long arm 51 will slide inward in the limit slide rail 4, so that the hanging arm assembly 7 will shrink until the first clamping rod 76 clamps and supports the workpiece 9 from the bottom of the workpiece 9, and the second clamping rod 78 presses against the workpiece 9 from all sides of the workpiece, thereby clamping and fixing the workpiece 9. Then operate the crane to lift the workpiece 9 to the lifting destination. After the workpiece is stable, control the crane to descend, so that the movable arm 5 opens the sling and automatically unhooks to complete the lifting of the workpiece.

[0035] In this embodiment, a support frame and a sliding beam structure are used to make the sling suitable for harsh production conditions such as high temperature and toxicity, improve the versatility of the sling, extend the service life of the sling, and effectively reduce the production cost of the sling. At the same time, the movable support arm and the boom assembly can flexibly set the clamping range of the sling according to the size of the workpiece, realize the transportation and clamping of large circular workpieces of multiple sizes and specifications, and improve the load-bearing capacity of the sling to ensure the stability of the workpiece clamping, avoid skewing or falling off during transportation, and ensure transportation safety. The use of an opener and closeer assembly can realize automatic clamping and unhooking, realize automated clamping, reduce the workload of operators, realize fast and convenient clamping, improve transportation efficiency, and ensure production safety.

[0036] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A lifting device suitable for large ring-shaped workpieces, characterized in that: It includes a support frame, on which a plurality of sliding beams are radially arranged, and a step groove is arranged at the central intersection of the sliding beams; a limiting slide rail is radially arranged on each sliding beam, a movable support arm is arranged in the limiting slide rail, a hanging plate is arranged at the upper end of the movable support arm, and a hanging arm assembly is arranged at the lower end of the movable support arm; the upper end of the hanging arm assembly is arranged in the limiting slide rail; an opener and closer assembly is arranged at the lower end of the hanging plate, and the lower end of the opener and closer assembly is movably arranged in the step groove.

2. A sling device suitable for large annular workpieces according to claim 1, characterized in that: The movable support arm includes a long support arm and a short support arm; the upper end of the long support arm is arranged on the hanging plate, and the lower end of the long support arm is movably arranged in the limiting slide rail; the upper end of the short support arm is arranged on the long support arm, and the lower end of the short support arm is arranged on the sliding beam.

3. A sling device suitable for large annular workpieces according to claim 2, characterized in that: The boom assembly is a telescopic boom assembly, comprising an upper boom and a lower boom, wherein the upper end of the upper boom is connected to the lower end of the long arm; and the upper end of the lower boom is movably arranged in the upper boom.

4. A sling device suitable for large annular workpieces according to claim 1, characterized in that: The hanging plate comprises a positioning plate, a hanging ring is arranged on the positioning plate, a plurality of connecting earrings are arranged circumferentially at the lower end of the hanging ring, and the upper end of the movable support arm is arranged on the connecting earring.

5. The hanger device for large annular workpieces according to claim 1, characterized in that: The shutter assembly includes a shell arranged at the lower end of the hanging plate, and an upper guide sleeve, a T-shaped guide pin and a lower guide sleeve are arranged in the shell; the lower end of the upper guide sleeve is provided with a first corrugated guide surface; the upper end of the lower guide sleeve is provided with a second corrugated guide surface; the first corrugated guide surface and the second corrugated guide surface are arranged in an alternating waveform; the upper end of the transverse end of the T-shaped guide pin is provided with an upper guide surface, and the lower end of the transverse end is provided with a lower guide surface, the upper guide surface cooperates with the first corrugated guide surface, and the lower guide surface cooperates with the second corrugated guide surface.

6. A sling device suitable for large annular workpieces according to claim 3, characterized in that: A clamping structure is provided at the lower end of the lower suspension arm, and the clamping structure comprises a first clamping rod provided at the bottom of the lower suspension arm, and a second clamping rod provided above the first clamping rod.

7. A sling device suitable for large annular workpieces according to claim 3, characterized in that: The upper suspension arm is provided with a plurality of positioning holes, the lower suspension arm is provided with a plurality of limiting holes matched with the positioning holes, and positioning pins are movably provided in the positioning holes.

8. The hanger device for large annular workpieces according to claim 5, characterized in that: A trapezoidal fixing block is arranged at the lower end of the T-shaped guide pin, and the trapezoidal fixing block is movably arranged in the step groove.

9. The hanger device for large annular workpieces according to claim 6, characterized in that: The length of the first clamping rod is greater than the length of the second clamping rod.

10. The sling device for large annular workpieces according to claim 8, characterized in that: The step groove is a rectangular step groove.

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