A lifting device for bent titanium pipe

Abstract

The utility model relates to a lifting device for a bent titanium tube. The utility model comprises a lifting device connected to a crane. The bent titanium tube to be lifted is connected to the lifting device. The lifting device comprises a central clamping ring and two side clamping rings. The central clamping ring is clamped at the center of the bent titanium tube to be lifted. The two side clamping rings are symmetrically distributed on both sides of the central clamping ring and are clamped with the two ends of the bent titanium tube to be lifted. A limiting device is connected to the two side clamping rings. The setting of the limiting device can prevent the side clamping rings from moving in a direction close to the middle clamping ring. The beneficial effect of the utility model is that the setting of the limiting device can prevent the side clamping rings from moving in a direction close to the middle clamping ring, thereby preventing the occurrence of bending of the two ends of the titanium tube due to the displacement of the side clamping rings.

Description

Technical Field

[0001] The utility model relates to the technical field of bent titanium tube welding, in particular to a bent titanium tube welding auxiliary device. Background Art

[0002] Bending titanium tubes are widely used in various technical fields. In practical applications, it is often necessary to carry the bending titanium tubes. In the prior art, a steel tube hoisting and carrying device is disclosed, and its document number is: CN115872264A. The device includes a crane, a scissor-type lifting bracket, a magnet fixing frame and a magnet. One end of the scissor-type lifting bracket is fixed on the crane, and the other end is fixed to the magnet fixing frame. The magnet is provided with a plurality of magnets, which are evenly distributed on the lower end surface of the magnet fixing frame, and the magnet is adsorbed on the surface of the steel tube to be hoisted;

[0003] In the above scheme, the connection between the transport device and the steel pipe is achieved by the adsorption force of the magnet on the steel pipe. However, when the pipe to be transported is a bent titanium pipe, the device cannot be tightly connected to the bent titanium pipe. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a bent titanium tube lifting device which can be suitable for bent titanium tubes.

[0005] To achieve the above purpose, the technical solution of the utility model is: a bent titanium tube lifting device, comprising a central clamping ring and two side clamping rings, the central clamping ring is connected to the center of the bent titanium tube to be lifted, and the two side clamping rings are symmetrically distributed on both sides of the central clamping ring and connected to the two ends of the bent titanium tube to be lifted;

[0006] The side clamping ring is connected to a limiting device, which limits the movement of the side clamping ring so that the distance between the center clamping ring and the side clamping ring remains unchanged;

[0007] The side clamping ring and the center clamping ring are both connected with lifting rings through lifting ropes, and the lifting rings are connected with the lifting hook of the crane.

[0008] Furthermore, the limiting device includes a support arm, and two ends of the support arm are respectively connected to the side clamping ring and the center clamping ring.

[0009] Furthermore, the central retaining ring and the side retaining ring each include two retaining buckles with a "C"-shaped cross-section, the two retaining buckles are hinged on the epitaxial block, and the two retaining buckles are connected to form a circular ring shape.

[0010] Furthermore, the free ends of the two buckles are respectively connected to the first extension block and the second extension block, the two extension blocks are each provided with a first through hole, and a lifting ring is connected through the first through holes on the two extension blocks, and the lifting ring is connected to the lifting rope.

[0011] Furthermore, a second through hole is provided on the first extension block of the positioning ring, and the free end of the support arm can pass through the second through hole.

[0012] Furthermore, the lifting ring comprises two half rings, one end of the two half rings are axially connected together, and the other end is connected by a locking bolt.

[0013] Furthermore, the limiting device includes an anti-slip assembly arranged at the end of the bent titanium tube, and the anti-slip assembly is connected to the side clamping ring through a connecting rod.

[0014] Furthermore, the anti-slip assembly includes a limit plate, a limit column is arranged on the inner side of the limit plate, the limit column can be inserted into the bent titanium tube, and a fourth through hole for passing the connecting rod is arranged on the limit plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model realizes the lifting of the bent titanium tube by means of a clamping ring, a lifting ring and a lifting rope. In addition, the device is also provided with a limiting device, which can prevent the side clamping ring from moving toward or away from the middle clamping ring, thereby avoiding the occurrence of bending and deformation of the titanium tube caused by the displacement of the side clamping ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the first embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the side view structure of the clamping ring of the utility model;

[0018] Figure 3 This is a schematic diagram of the top view of the clamping ring of the utility model;

[0019] Figure 4 This is a side view of the structure of the lifting ring of the utility model;

[0020] Figure 5 This is a schematic diagram of the main cross-sectional structure of the second embodiment of the utility model;

[0021] In the figure, 1-side retaining ring, 2-center retaining ring, 3-support arm, 4-lifting ring, 5-half ring, 6-lifting rope, 7-lifting ring, 8-buckle, 11-extension block, 1101-first extension block, 1102-second extension block, 12-first through hole, 13-second shaft rod, 16-locking bolt, 17-second through hole, 18-nut, 19-connecting rod, 20-limiting plate, 21-limiting column, 22-epitaxial block, 23-third through hole, 25-titanium tube. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various configurations. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model. In the embodiment, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but only represents the selected embodiments of the present application.

[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] See also Figures 1 to 4As shown, a bent titanium tube lifting device is connected to a hook on a crane, and mainly comprises three clamping rings. The three clamping rings are specifically divided into two side clamping rings 1 and one center clamping ring 2. The center clamping ring 2 is located between the two side clamping rings 1. The three clamping rings are all sleeved on the bent titanium tube 25, wherein the center clamping ring 2 is located at the center of the bent titanium tube 25, the two side clamping rings 1 are symmetrically distributed on both sides of the center clamping ring 2, and the two side clamping rings 1 are located at the ends of the bent titanium tube 25, and the two side clamping rings 1 are connected to limit devices. The setting of the limit devices can prevent the side clamping rings 1 from moving toward or away from the middle clamping ring. At this time, the distance between the side clamping rings 1 and the middle clamping ring is limited, thereby increasing the stability of the middle clamping ring.

[0026] As the first embodiment of the utility model, the limiting device includes a support arm 3, there are two support arms 3, each of the support arms 3 is located between the side clamping ring 1 and the center clamping ring 2, one end of the support arm 3 is connected to the center clamping ring 2, and the other end of the support arm 3 is connected to the side clamping ring 1 on the corresponding side; each clamping ring is connected to a lifting ring 4, and each lifting ring 4 is connected to a lifting rope 6, one end of the lifting rope 6 is connected to the clamping ring, and the other end of the lifting rope 6 is connected to the lifting ring 7, and the lifting ring 7 is connected to the hook of the crane. When the crane is working, the hook can move with the clamping ring, thereby realizing the transportation of the bent titanium tube 25.

[0027] The above-mentioned clamping ring includes two clamps 8 with a "C"-shaped cross-section. The two clamps 8 are hinged on the extension block 22 at the same time. When the free ends of the two clamps 8 are butted, the two clamps 8 form a circular ring. The inner wall of the clamp 8 is provided with a rubber cushion layer. The free ends of the two clamps 8 are connected with extension blocks 11. The thickness of the two extension blocks 11 is inconsistent. The extension block with a larger thickness is the first extension block 1101, and the extension block with a smaller thickness is the second extension block 1102. The first extension block 1101 and the second extension block 1102 are both provided with a first through hole 12. When the two clamps 8 form a circular ring, the first extension block 1101 and the second extension block 1102 are in contact with each other. At this time, the two first through holes 12 are connected to form a passage, and then the lifting ring 4 can be connected in this passage. The lifting ring 4 is connected to the above-mentioned lifting rope 6. The structure of the lifting ring 4 is similar to that of the buckle 8, including two half rings 5. One end of the two half rings 5 ​​is axially connected together through the second shaft rod 13, and the other ends of the two half rings 5 ​​are provided with a first threaded through hole, and the locking bolt 16 can be screwed into the first threaded through hole. By aligning the first threaded through holes of the two half rings 5 ​​and screwing the locking bolt 16 into the first threaded through hole, the two half rings 5 ​​are connected into a closed circular ring, and a nut 18 is screwed on the end of the locking bolt 16. The two half rings 5 ​​are tightly connected by tightening the nut 18.

[0028] When the above-mentioned support arm is connected with the middle clamping ring, the support arm 3 is hinged on the extension block of the middle clamping ring, and the other end of the support arm is connected to the first extension block 1101 of the side clamping ring. Specifically, the first extension block 1101 of the side clamping ring 1 is also provided with a second through hole 17, and the second through hole is a waist-shaped hole. The second through hole 17 is located below the first through hole 12, and the extension directions of the two are opposite. A threaded section close to the free end is provided on the support arm 3. First, a nut is screwed on the threaded section of the support arm, and the free end of the support arm 3 can pass through the second through hole 17 on the corresponding side clamping ring 1 (the diameter of the second through hole 17 is smaller than the outer diameter of the nut), and then another nut is screwed on the threaded section of the support arm 3. At this time, the first extension block 1101 on the side clamping ring is located between the two nuts, and the first extension block 1101 cannot move along the length direction of the support arm, thereby avoiding the problem of the side clamping ring 1 falling off during operation.

[0029] When using the above-mentioned device, first, hinge the support arms 3 on both sides of the central clamping ring 2 according to the length of the bent titanium tube 25 to be lifted, then connect the two ends of the support arms 3 to the side clamping rings 1, and then connect the central clamping ring 2 to the center position of the bent titanium tube 25, and connect the two side clamping rings 1 to the bent titanium tube 25; then flip the three lifting rings 4 to an unfolded state, and pass through the first through holes 12 on the extension blocks on the corresponding clamping rings one by one, and use bolts and nuts 18 to lock the lifting rings 4 into a closed state; then connect one end of the lifting rope 6 to the corresponding clamping ring, and the other end of the lifting rope 6 to the lifting ring 7 at the same time, and finally hang the lifting ring 4 on the hook on the crane.

[0030] However, in the above solution, when the length of the titanium tube 25 to be hoisted changes, the structure is not applicable.

[0031] See also Figure 5 As shown, as the second embodiment of the utility model, the limiting device includes an anti-slip assembly arranged at the end of the bent titanium tube 25, there are two anti-slip assemblies, and the side clamping ring 1 is located between the two anti-slip assemblies. The anti-slip assembly is connected to the side clamping ring 1 through a connecting rod 19. The setting of the anti-slip assembly can prevent the side clamping ring 1 from moving to the middle position of the bent titanium tube 25 during lifting, thereby avoiding the problem of bending and deformation of the above-mentioned bent titanium tube 25 during lifting.

[0032] The anti-slip assembly includes a limit plate 20, and a limit column 21 is arranged on the inner side of the limit plate 20. The limit column 21 can be inserted into the inside of the curved titanium tube 25. The limit column 21 is provided with rubber convex teeth. When the limit column contacts the curved titanium tube 25, the setting of the rubber convex teeth can increase the friction between the limit column 21 and the curved titanium tube 25, so that the connection between the curved titanium tube 25 and the limit device is tighter.

[0033] The specific connection structure between the above-mentioned side clamping ring 1 and the anti-slip assembly is as follows: a third through hole 23 is provided on the epitaxial block 22 of the above-mentioned side clamping ring, and two fourth through holes are provided on the limiting plate 20. There are two connecting rods 19, and each connecting rod 19 is provided with a threaded section close to both ends, and an inner nut is first screwed on each threaded section, and then the two ends of one of the connecting rods 19 are respectively passed through the second through hole 17 on the extension block and the corresponding fourth through hole on the limiting plate 20, and the two ends of the other connecting rod 19 are passed through the third through hole 23 on the epitaxial block 22 and the corresponding fourth through hole on the limiting plate 20, and then outer nuts are screwed on both ends of each connecting rod 19, and then tightened to tightly connect the anti-slip assembly with the side clamping ring 1.

[0034] Each limiting plate 20 is provided with a hanging ring for connecting the hanging rope 6 , one end of the hanging rope 6 is connected to the hanging ring, and the other end is connected to the lifting ring 7 after passing through the hanging ring on the side clamping ring 1 on the same side.

[0035] When implementing this embodiment, first, the middle clamping ring is clamped on the center position of the bent titanium tube 25 to be lifted, and then the two anti-slip components are assembled at the two ends of the bent titanium tube 25 to be lifted. Then, the position of the side clamping ring 1 is determined according to the length of the connecting rod 19 and the side clamping ring 1 is connected to the bent titanium tube 25 to be lifted. Then, the side clamping ring 1 is tightly connected to the anti-slip component through the connecting rod 19 and the nut 18. Finally, the anti-slip component is connected to the lifting ring 7 through the lifting rope 6, and the lifting ring 7 is connected to the hook of the crane to realize the lifting of the bent titanium tube 25.

[0036] In addition, in order to increase the connection stability between the retaining ring and the bent titanium tube, a tightening screw can also be provided on the retaining ring. The tightening screw passes through the buckle 8 and the two are screwed together. When the two buckles 8 on the retaining ring are connected to form a circular ring, the tightening screw is screwed to move it toward the bent titanium tube until the inner end of the tightening screw rests on the bent titanium tube. At this time, the tightness of the connection between the retaining ring and the bent titanium tube is increased.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the present invention. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A bending titanium tube lifting device, characterized in that: It includes a central clamping ring and two side clamping rings, wherein the central clamping ring is connected to the center of the bent titanium tube to be lifted, and the two side clamping rings are symmetrically distributed on both sides of the central clamping ring and connected to both ends of the bent titanium tube to be lifted; The side clamping ring is connected to a limiting device, which limits the movement of the side clamping ring so that the distance between the center clamping ring and the side clamping ring remains unchanged; The side clamping ring and the center clamping ring are both connected with lifting rings through lifting ropes, and the lifting rings are connected with the lifting hook of the crane.

2. The bent titanium tube lifting device according to claim 1 is characterized in that: The limiting device comprises a support arm, and two ends of the support arm are respectively connected to a side clamping ring and a center clamping ring.

3. The bent titanium tube lifting device according to claim 2 is characterized in that: The central clamping ring and the side clamping ring each include two clamps with a "C"-shaped cross section. The two clamps are hinged on the epitaxial block and form a circular ring after the two clamps are butt-jointed.

4. The bent titanium tube lifting device according to claim 3 is characterized in that: The free ends of the two buckles are respectively connected to the first extension block and the second extension block, the two extension blocks are both provided with first through holes, and a lifting ring is connected through the first through holes on the two extension blocks, and the lifting ring is connected to the lifting rope.

5. The bent titanium tube lifting device according to claim 4 is characterized in that: A second through hole is arranged on the first extension block of the side clamping ring, and the free end of the support arm can pass through the second through hole.

6. The bent titanium tube lifting device according to claim 4 is characterized in that: The lifting ring comprises two half rings, one end of the two half rings are axially connected together, and the other end is connected by a locking bolt.

7. The bent titanium tube lifting device according to claim 1 is characterized in that: The limiting device comprises an anti-slip assembly arranged at the end of the bent titanium tube, and the anti-slip assembly is connected with a side clamping ring through a connecting rod.

8. The bent titanium tube lifting device according to claim 7 is characterized in that: The anti-slip assembly comprises a limit plate, a limit column is arranged on the inner side of the limit plate, the limit column can be inserted into the inside of the bent titanium tube, and a fourth through hole for passing the connecting rod is arranged on the limit plate.

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