A hoisting clamp for thin-walled cylindrical workpieces

Abstract

The utility model discloses a kind of hoisting clamps of thin-walled cylinder piece, hoisting mechanism includes support frame, semicircular mouth is respectively set in the middle part of four around top surface of support frame, whole circular groove is respectively set in the inner wall of support frame and below each semicircular mouth, each semicircular mouth and similar whole circular groove are respectively coaxially arranged, and semicircular mouth and whole circular groove inner diameter are consistent, the inner wall of support frame and below each whole circular groove are respectively rotationally connected with rotating rod, each rotating rod is extended along the height direction of support frame, the lower end of rotating rod extends to the below of support frame bottom surface, the bottom end side of rotating rod is fixedly connected with semicircular plate, semicircular plate is coaxially arranged with semicircular mouth, and semicircular plate outer diameter and semicircular mouth inner diameter are consistent, the support frame of the inner support ring of connecting clamping ring can be set multiple according to thin-walled cylinder piece total length, after support frame is inserted to the inside of thin-walled cylinder piece, each support frame surface fixed inner support ring can be more evenly supported in the inner wall of thin-walled cylinder piece, to facilitate the clamping and shaping of thin-walled cylinder piece of different length in turn.

Description

Technical Field

[0001] This utility model relates to the field of lifting clamp technology, specifically to a lifting clamp for thin-walled cylindrical parts. Background Technology

[0002] Thin-walled cylindrical components are cylindrical structural components whose wall thickness is much smaller than their diameter. They aim to achieve sufficient load-bearing capacity with minimal material and are commonly found in aerospace, chemical and other fields. They are often used in the manufacture of equipment housings or pressure vessels.

[0003] Because thin-walled cylindrical structures are very light but have poor rigidity, they are prone to deformation or instability due to uneven stress during hoisting. Therefore, existing technologies typically use internal support clamps, which provide radial support or expansion from the inside of the cylindrical structure and fit against the inner wall. However, common internal support clamps are not convenient for firmly clamping thin-walled cylindrical structures of different lengths. To address this issue, a hoisting clamp for thin-walled cylindrical structures is proposed to solve the above problems. Utility Model Content

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A lifting clamp for a thin-walled cylindrical component includes a lifting mechanism, and a clamping mechanism is provided on the outer side of the lifting mechanism;

[0006] The hoisting mechanism includes a support frame. Semicircular openings are formed in the center of each of the four sides of the top surface of the support frame. Circular grooves are formed on the inner wall of the support frame below each semicircular opening. Each semicircular opening and its adjacent circular groove are coaxially aligned, and the inner diameters of the semicircular openings and grooves are the same. Rotary rods are rotatably connected to the inner wall of the support frame below each circular groove. Each rotating rod extends along the height of the support frame, with its lower end extending below the bottom surface of the support frame. A semicircular plate is fixedly connected to the side of the bottom end of each rotating rod. The semicircular plate is coaxially aligned with the semicircular opening, and the outer diameter of the semicircular plate is the same as the inner diameter of the semicircular opening.

[0007] As a further embodiment of this utility model: a hexagonal groove is provided in the middle of the top surface of each of the rotating rods, and a hexagonal shaft is fixedly connected in the middle of the bottom surface of each of the rotating rods, with the hexagonal grooves and hexagonal shafts fitting together.

[0008] As a further embodiment of this utility model: slots are respectively provided on the top and bottom surfaces of the support frame near each corner; threaded holes are provided on the inner wall of the support frame and on the bottom surface of each slot; and threaded holes are provided on both sides of the semi-circular opening on the top surface of the support frame.

[0009] As a further embodiment of this utility model: the hoisting mechanism further includes a hexagonal shaft II, the top surface of which is fixedly connected to a shelf, and the top surface of which is fixedly connected to a lifting lug.

[0010] As a further embodiment of this utility model: the hexagonal shaft II is inserted into the inner side of the semi-circular opening, and the lower end of the hexagonal shaft II is engaged with the interior of the hexagonal groove. The bottom surface of the shelf is supported above each threaded hole II, and the surface of the shelf is fastened to the interior of the threaded hole II by insertion screws.

[0011] As a further embodiment of this utility model: the clamping mechanism includes a clamping ring, and mounting ears are fixedly connected to the inner circumference of the clamping ring. The outer walls of the mounting ears are respectively inserted into the inner side of the threaded holes. The surface of the mounting ears is fastened to the inside of the threaded holes by insertion bolts.

[0012] As a further embodiment of this utility model: the clamping mechanism further includes an inner support ring, and mounting ears two are fixedly connected to the inner circumference of the inner support ring. The outer walls of the mounting ears two are respectively inserted into the inner side of the threaded hole one, and the surface of the mounting ears two is fastened to the inside of the threaded hole one by insertion bolts.

[0013] The beneficial effects of this utility model are:

[0014] (1) This utility model supports and limits the end of the thin-walled cylindrical part by using a clamping ring, and sets an inner support ring to fit and support the inner wall of the thin-walled cylindrical part, thereby avoiding the thin-walled cylindrical part from being easily deformed. The clamping ring and the inner support ring are fixed to the surface of the support frame by a bolt structure, which facilitates the replacement of the clamping ring and the inner support ring, and makes it convenient to use clamping rings and inner support rings of different diameters, thereby realizing the clamping of thin-walled cylindrical parts of different diameters.

[0015] (2) Multiple support frames for the inner support ring of the connecting clamping ring can be set according to the total length of the thin-walled cylinder. Each support frame is arranged vertically and locked to each other. After the support frame is inserted into the inner side of the thin-walled cylinder, the inner support rings fixed on the surface of each support frame can be supported more evenly on the inner wall of the thin-walled cylinder, which facilitates clamping and shaping of thin-walled cylinders of different lengths and improves the universality of this lifting clamp. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the external structure of the support frame in this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the shelf in this utility model;

[0020] Figure 4 This is a cross-sectional view of the support frame structure in this utility model.

[0021] In the diagram: 1. Lifting mechanism; 101. Support frame; 102. Slot; 103. Threaded hole one; 104. Semicircular opening; 105. Full circular groove; 106. Threaded hole two; 107. Rotating rod; 108. Hexagonal groove; 109. Semicircular plate; 110. Hexagonal shaft one; 111. Hexagonal shaft two; 112. Shelf; 113. Lifting lug; 2. Clamping mechanism; 201. Clamping ring; 202. Mounting lug one; 203. Inner support ring; 204. Mounting lug two. Detailed Implementation

[0022] 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.

[0023] like Figure 1-4 As shown, a lifting clamp for a thin-walled cylindrical component includes a lifting mechanism 1, with a clamping mechanism 2 disposed on the outer side of the lifting mechanism 1. The lifting mechanism 1 includes a support frame 101, with semi-circular openings 104 respectively formed in the center of the four sides of the top surface of the support frame 101. A circular groove 105 is formed on the inner wall of the support frame 101 below each semi-circular opening 104. Each semi-circular opening 104 and the adjacent circular groove 105 are coaxially arranged, and the semi-circular opening 104 and the circular groove 105 are... 05. A rotating rod 107 is rotatably connected to the inner wall of the support frame 101, located below each circular groove 105. Each rotating rod 107 extends along the height direction of the support frame 101, with its lower end extending below the bottom surface of the support frame 101. A semi-circular plate 109 is fixedly connected to the side of the bottom end of the rotating rod 107. The semi-circular plate 109 is coaxially arranged with the semi-circular opening 104, and the outer diameter of the semi-circular plate 109 is consistent with the inner diameter of the semi-circular opening 104. Figure 4 As shown, the support frame 101 can be made of stainless steel or other metals or engineering plastics, and the outer side of the structure such as the inner wall rotating rod 107 of the support frame 101 can be hollowed out, thereby reducing the weight of the support frame 101 and facilitating hoisting and transportation.

[0024] Each rotating rod 107 has a hexagonal groove 108 formed in the middle of its top surface, and a hexagonal shaft 110 is fixedly connected to the middle of its bottom surface. The hexagonal groove 108 is inserted into the hexagonal shaft 110. Slots 102 are formed on the top and bottom surfaces of the support frame 101 near each corner. Threaded holes 103 are formed on the inner wall of the support frame 101 and on the bottom surface of each slot 102. Threaded holes 106 are formed on both sides of the semi-circular opening 104 on the top surface of the support frame 101. Figure 4 As shown, after the support frame 101 is assembled, the hexagonal shafts 110 are inserted into the hexagonal slots 108 respectively, so that the rotating rods 107 arranged on the same straight line can rotate synchronously.

[0025] The lifting mechanism 1 also includes a hexagonal shaft 111. A shelf 112 is fixedly connected to the top surface of the hexagonal shaft 111, and a lifting lug 113 is fixedly connected to the top surface of the shelf 112. The hexagonal shaft 111 is inserted entirely into the semi-circular opening 104, and its lower end engages with the interior of the hexagonal groove 108. The bottom surface of the shelf 112 is supported above each threaded hole 106, and the surface of the shelf 112 is securely connected to the interior of the threaded holes 106 via screws. Figures 2-3 As shown, the hexagonal shaft 111 can replace the internal hexagonal wrench to push the interior of the hexagonal slot 108 and drive each rotating rod 107 to rotate.

[0026] The clamping mechanism 2 includes a clamping ring 201, with mounting ears 202 fixedly connected to all four sides of its inner side. The outer walls of the mounting ears 202 are inserted into the inner sides of threaded holes 103. The surfaces of the mounting ears 202 are fastened to the inside of the threaded holes 103 by bolts. The clamping mechanism 2 also includes an inner support ring 203, with mounting ears 204 fixedly connected to all four sides of its inner side. The outer walls of the mounting ears 204 are inserted into the inner sides of threaded holes 103. The surfaces of the mounting ears 204 are fastened to the inside of the threaded holes 103 by bolts. Figures 1-2 As shown, depending on the outer and inner diameters of the thin-walled cylindrical component, the clamping ring 201 and the inner support ring 203 can be prepared in different sizes to facilitate the support of thin-walled cylindrical components of different sizes. The larger the diameter of the clamping ring 201 and the inner support ring 203, the longer the length of the mounting ear 1 202 and the mounting ear 204.

[0027] The working principle of this utility model:

[0028] When hoisting the thin-walled cylindrical component, first measure its total length, then assemble multiple support frames 101 according to its total length, so that the total length of the assembled support frames 101 is close to the length of the thin-walled cylindrical component. Before assembling the support frames 101, select inner support rings 203 with matching dimensions according to the inner diameter of the thin-walled cylindrical component. After inserting mounting ears 204 into each slot 102, bolts are passed through the mounting ears 204 and tightened into the threaded holes 103 to achieve relative fixation between the inner support rings 203 and the support frames 101. When assembling the various support frames 101, insert the semicircular plates 109 into the inner side of the semicircular openings 104 until the hexagonal shaft 110 is inserted into the bottom surface of the hexagonal groove 108. At this time, the semicircular plates 109 are located inside the full circular groove 105, and the end faces of the various support frames 101 abut against each other. Then, insert the hexagonal shaft 111 into the inner side of the outermost unused hexagonal groove 108 of the assembled support frame. Next, rotate the lifting lug 113 to drive the hexagonal shaft 111 to rotate, so that the hexagonal groove 108 is compressed, thereby causing the rotating rods 107 to rotate simultaneously. The semicircular plates 109 rotate within the full circular groove 105, and each semicircular plate 109 is offset from the semicircular openings 104. At this time, the separation of the support frames 101 after their end faces are in contact is hindered. Finally, pass the screw through the shelf 112 and insert and tighten it into the threaded hole 106, locking the hexagonal shaft 111 inside the hexagonal groove 108.

[0029] Next, lugs 202 are inserted into the slots 102 at both ends of the assembled support frame 101. The surface of the outermost inner support ring 203 is in contact with the surface of the clamping ring 201, and the clamping ring 201 is installed on the outer side of both ends of the thin-walled cylinder and fixed by bolts inserted and tightened in the threaded holes 103. At this time, the lifting equipment connects to each lifting lug, thereby driving the assembled support frame 101 to rise, and supporting the thin-walled cylinder to rise upward with the help of the lowest clamping ring 201.

[0030] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A lifting clamp for a thin-walled cylindrical component, comprising a lifting mechanism (1), wherein a clamping mechanism (2) is provided on the outer side of the lifting mechanism (1); Its features are, The hoisting mechanism (1) includes a support frame (101). Semicircular openings (104) are respectively provided in the center of the four sides of the top surface of the support frame (101). A circular groove (105) is respectively provided on the inner wall of the support frame (101) below each semicircular opening (104). Each semicircular opening (104) and the adjacent circular groove (105) are coaxially arranged, and the inner diameter of the semicircular opening (104) and the circular groove (105) are the same. Each circular groove (105) is rotatably connected to a rotating rod (107) below it. Each rotating rod (107) extends along the height direction of the support frame (101). The lower end of the rotating rod (107) extends to the bottom surface of the support frame (101). A semi-circular plate (109) is fixedly connected to the side of the bottom end of the rotating rod (107). The semi-circular plate (109) is coaxially arranged with the semi-circular opening (104), and the outer diameter of the semi-circular plate (109) is the same as the inner diameter of the semi-circular opening (104).

2. The lifting clamp for a thin-walled cylindrical component according to claim 1, characterized in that, Each of the rotating rods (107) has a hexagonal groove (108) in the middle of its top surface, and a hexagonal shaft (110) is fixedly connected to the middle of the bottom surface of each of the rotating rods (107). The hexagonal groove (108) is inserted into the hexagonal shaft (110).

3. The lifting clamp for a thin-walled cylindrical component according to claim 2, characterized in that, The support frame (101) has slots (102) on its top and bottom surfaces near each corner. The inner wall of the support frame (101) and the bottom surface of each slot (102) have threaded holes (103). The top surface of the support frame (101) has threaded holes (106) on both sides of the semi-circular opening (104).

4. The lifting clamp for a thin-walled cylindrical component according to claim 3, characterized in that, The hoisting mechanism (1) also includes a hexagonal shaft two (111), the top surface of which is fixedly connected to a shelf (112), and the top surface of which is fixedly connected to a lifting lug (113).

5. The lifting clamp for a thin-walled cylindrical component according to claim 4, characterized in that, The hexagonal shaft 2 (111) is inserted into the inner side of the semi-circular opening (104), and the lower end of the hexagonal shaft 2 (111) is fitted into the interior of the hexagonal groove (108). The bottom surface of the shelf (112) is supported above each threaded hole 2 (106), and the surface of the shelf (112) is fastened to the interior of the threaded hole 2 (106) by a screw.

6. The lifting clamp for a thin-walled cylindrical component according to claim 1, characterized in that, The clamping mechanism (2) includes a clamping ring (201), and mounting ears (202) are fixedly connected to the inner circumference of the clamping ring (201). The outer walls of the mounting ears (202) are inserted into the inner side of the threaded hole (103), and the surface of the mounting ears (202) is fastened to the inside of the threaded hole (103) by inserting bolts.

7. The lifting clamp for a thin-walled cylindrical component according to claim 6, characterized in that, The clamping mechanism (2) also includes an inner support ring (203). The inner support ring (203) has mounting ears (204) fixedly connected around its inner perimeter. The outer walls of the mounting ears (204) are inserted into the inner side of the threaded hole (103). The surface of the mounting ears (204) is fastened to the inside of the threaded hole (103) by bolts.

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