Double-supporting-point axial self-alignment heavy shelf

Abstract

The invention belongs to the technical field of mechanical engineering, and particularly relates to a heavy shelf. According to the technical scheme, a rotary bracket body is formed in a welding mode, and the upper end face of the rotary bracket body is a placing face conformal with a placed object supporting area; the outer ring of the slewing bearing is connected with the slewing bracket, and the inner ring of the slewing bearing is connected with the fixed base; the positions of the two shelving frames are determined according to the distance between shelving areas of shelved objects, the shelved objects are hoisted to be slowly placed on the shelving faces of the rotary brackets, and the rotary brackets of the shelving frames are driven to rotate relative to the fixed base through the self weight of the shelved objects till the axes of the shelving faces of the two shelving frames are aligned with the axes of the shelved objects. According to the principle that two points determine one straight line, it is guaranteed that the axes of the placing faces of the two placing frames are completely aligned with the axis of the placed object, uneven stress, deformation, damage and the like of the placing area of the placed object due to the fact that the axes are not aligned are avoided, and the placing efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical engineering, and in particular relates to a heavy-duty shelf. Background Art

[0002] The shelves currently used for products with large slenderness and mass, such as underwater vehicles and wind turbine main columns, are as shown in the attached manual. Figure 1 When using, you need to first place the two shelves in place according to the spacing of the shelf areas of the shelf objects, then adjust the two shelves as a whole so that the axes of the shelf surfaces of the two shelves are aligned, and finally hoist the shelf objects onto the shelves and fix them by bundling or other methods.

[0003] The distance between the storage areas of underwater vehicles, wind turbine main columns and other products is large, and the weight of the shelves that can carry the products is also large (more than hundreds of kilograms). Therefore, it is difficult, time-consuming and inefficient to adjust the axis alignment of the storage surfaces of the two shelves. In addition, if the axes of the storage surfaces of the two shelves are not aligned and the products are placed on them, the heavy weight of the products will cause uneven force on the storage areas of the products, resulting in damage to the products; when the axis deviates greatly, the products will be directly squeezed and damaged. Summary of the invention

[0004] The purpose of the present invention is to provide a double-support-point axial self-aligning heavy-duty shelf in view of the deficiencies of the prior art.

[0005] The technical solution of the present invention is: a double-support-point axial self-aligning heavy-duty shelf rack, comprising: a slewing bracket, a slewing bearing and a fixed base.

[0006] The main body of the rotating bracket is welded and formed, and the upper end surface is a placing surface conforming to the supporting area of ​​the placed object. Hard rubber is laid on the upper end surface of the rotating bracket.

[0007] The outer ring of the slewing bearing is connected to the slewing bracket, and the inner ring of the slewing bearing is connected to the fixed base.

[0008] The positions of the two shelves are determined according to the spacing of the storage areas of the stored objects. The stored objects are hoisted and slowly placed on the storage surface of the rotating bracket. The dead weight of the stored objects is used to drive the rotating bracket of the shelf to rotate relative to the fixed base until the axes of the storage surfaces of the two shelves are aligned with the axes of the stored objects.

[0009] On the basis of the above solution, further, tightening straps for fixing the placed objects are fastened on both sides of the upper end surface of the swivel bracket.

[0010] On the basis of the above solution, further, four casters for short-distance movement and adjustment are installed at the bottom of the fixed base.

[0011] On the basis of the above scheme, further, 4 sets of adjustable support feet are provided at the bottom of the fixed base. The 4 sets of adjustable support feet and the bottom of the fixed base are connected by rectangular threads. The adjustable support feet can be moved axially relative to the fixed base by rotating the wrench position on the top of the adjustable support feet with a universal wrench. On the one hand, it is used for the overhead casters to bear the gravity of the placed objects. On the other hand, by adjusting the relative axial positions of the 4 sets of adjustable support feet, the fixed base is level and the 4 sets of adjustable support feet are evenly stressed.

[0012] In the above solution, specifically, the outer ring and the inner ring of the slewing bearing are connected to the slewing bracket and the fixed base respectively by using high-strength screws.

[0013] Beneficial effects:

[0014] (1) The fixed base and the rotating bracket of the present invention can support heavy products and rotate relative to each other. The positions of the two shelves are determined according to the spacing of the storage areas of the stored objects, and the stored objects can be hoisted and slowly placed on the storage surfaces of the shelves. The weight of the stored objects is used to drive the rotating bracket of the shelf to rotate relative to the fixed base until the storage surface axes of the two shelves are aligned with the axes of the stored objects and bear their weight.

[0015] (2) The present invention can improve the storage efficiency and save the time for adjusting the axis of the storage surfaces of the two storage racks, which is inefficient, time-consuming and labor-intensive when the original storage racks are used; at the same time, based on the principle of two points determining a straight line, the present invention can ensure that the axis of the storage surfaces of the two storage racks is completely aligned with the axis of the stored objects, thereby avoiding uneven force, deformation, damage, etc. in the storage area of ​​the stored objects caused by misalignment of the axes.

[0016] (3) The support surface of the rotary bracket in the present invention can be customized and replaced according to the shapes of different objects to be placed, and the other parts are universal components that can be reused in scenarios facing different objects to be placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the shelf described in the background technology of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0019] In the figure: 1- caster, 2- adjustable support foot, 3- fixed base, 4- slewing bearing, 5- slewing bracket. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] See attached Figure 2A double-support-point axial self-aligning heavy-duty shelf rack comprises: a slewing bracket 5, a slewing bearing 4 and a fixed base 3.

[0022] The main body of the swivel bracket 5 is welded, and the upper end surface is a placing surface conforming to the supporting area of ​​the placed object. Hard rubber is laid on the upper end surface of the swivel bracket 5; at the same time, tightening belts for fixing the placed objects are tied on both sides of the upper end surface of the swivel bracket 5.

[0023] The outer ring of the slewing bearing 4 is connected to the slewing bracket 5 by high-strength screws, and the inner ring of the slewing bearing 4 is connected to the fixed base 3 by high-strength screws.

[0024] Four casters 1 for short-distance movement and adjustment, and four sets of adjustable supporting feet 2 are installed at the bottom of the fixed base 3. The four sets of adjustable supporting feet 2 and the bottom of the fixed base 3 are connected by rectangular threads. The adjustable supporting feet 2 can be moved axially relative to the fixed base 3 by rotating the wrench position on the top of the adjusting supporting feet 2 with a universal wrench. On the one hand, the casters 1 are used to bear the gravity of the placed objects. On the other hand, the relative axial positions of the four sets of adjustable supporting feet 2 are adjusted to make the fixed base 3 horizontal and the four sets of adjustable supporting feet 2 evenly stressed.

[0025] The positions of the two shelves are determined according to the spacing between the storage areas of the stored objects, the stored objects are hoisted and slowly placed on the storage surface of the swivel bracket 5, and the shelf swivel bracket 5 is driven to rotate relative to the fixed base 3 using the dead weight of the stored objects, until the storage surface axes of the two shelves are aligned with the axes of the stored objects, and the gravity of the stored objects carried by the swivel bracket 5 is transmitted to the fixed base 3.

[0026] The device can ensure that the axes of the placing surfaces of the two placing racks and the axes of the placed objects are completely and autonomously aligned under the drive of the deadweight of the placed objects, thereby avoiding uneven force, deformation, damage, etc. in the placing areas of the placed objects caused by misalignment of the axes.

[0027] The device can improve the shelving efficiency of products with large slenderness ratio and large mass, such as underwater vehicles and main columns of wind turbines, and saves the adjustment time of aligning the axis lines of the shelving surfaces of two shelving racks, which is inefficient, time-consuming and labor-intensive when using the original shelving racks.

[0028] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A double-support-point axial self-aligning heavy-duty shelf, characterized in that: include: A slewing bracket (5), a slewing bearing (4) and a fixed base (3); The main body of the rotating bracket (5) is formed by welding, and the upper end surface is a placing surface conforming to the supporting area of ​​the placed object; hard rubber is laid on the upper end surface of the rotating bracket (5); The outer ring of the slewing bearing (4) is connected to the slewing bracket (5), and the inner ring of the slewing bearing (4) is connected to the fixed base (3); The positions of the two shelf racks are determined according to the spacing between the shelf areas of the shelf objects, the shelf objects are hoisted and slowly placed on the shelf surface of the swivel bracket (5), and the shelf racks are driven by the deadweight of the shelf objects to rotate the swivel bracket (5) relative to the fixed base (3) until the axis of the shelf surfaces of the two shelf racks are aligned with the axis of the shelf objects.

2. A double-support-point axial self-aligning heavy-duty shelf as claimed in claim 1, characterized in that: Tightening belts for fixing the placed objects are fastened on both sides of the upper end surface of the rotating bracket (5).

3. A double-support-point axial self-aligning heavy-duty shelf as claimed in claim 1 or 2, characterized in that: Four casters (1) are installed at the bottom of the fixed base (3).

4. A double-support-point axial self-aligning heavy-duty shelf as claimed in claim 3, characterized in that: Four groups of adjustable support feet (2) are provided at the bottom of the fixed base (3).

5. A double-support-point axial self-aligning heavy-duty shelf as claimed in claim 1 or 2, characterized in that: The outer ring and the inner ring of the slewing bearing (4) are respectively connected to the slewing bracket (5) and the fixed base (3) by using high-strength screws.

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