Lifting appliance for seamless steel pipe production

Abstract

The utility model discloses a lifting appliance for seamless steel pipe production, and relates to the technical field of lifting appliances. The device comprises a connecting pipe, sleeves are fixedly connected to the two ends of the connecting pipe correspondingly, expanding assemblies and releasing assemblies are arranged in the two sleeves correspondingly, and a lifting assembly used for clamping a steel pipe is arranged at the top of the connecting pipe. Sliding grooves are formed in the tops of the two sleeves, and a plurality of inserting holes arrayed at equal intervals are formed in the front faces of the two sleeves in the horizontal direction. The expansion assembly comprises an expansion arm movably sleeved with the sleeve, and a steel pipe hook is installed at the end, away from the connecting pipe, of the expansion arm. The releasing assembly comprises a sliding groove plate fixedly connected to the end, located in the sleeve, of the expansion arm, a sliding block is slidably connected into the sliding groove plate, and a releasing spring is fixedly connected between the side, away from the connecting pipe, of the sliding block and the inner wall of the sliding groove plate. The two release springs push the two expansion arms to move reversely, so that the two steel pipe hooks are separated from the steel pipe, the steel pipe automatically falls, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lifting appliance, especially relates to a lifting appliance for seamless steel pipe production. BACKGROUND

[0002] The seamless steel pipe is a kind of hollow and no joint long strip steel, its manufacturing process is: first with ingot or solid pipe blank as raw material, after perforating, it is made by hot rolling, cold rolling or cold drawing process, and the seamless steel pipe is widely used, and is applied in the industrial field, building decoration industry and drill pipe of geological drilling, etc., in the production process of seamless steel pipe, part of steel pipe is too large in volume, and needs to use special lifting appliance to complete operation when transferring.

[0003] At present, most steel pipe lifting appliances are mainly composed of crossbeam and lifting rope fixed at both ends, when carrying out hoisting operation, there are two common operation modes: one is to put the lifting rope on the outside of steel pipe, however, after the steel pipe is hoisted to the appropriate position, manual operation is needed to remove the lifting rope, which greatly influences work efficiency, the other is to directly hook the hook at the end of lifting rope on both ends of steel pipe, and this method has the security risk of unhooking.

[0004] Therefore, we provide a lifting appliance for seamless steel pipe production to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a lifting appliance for seamless steel pipe production, two expansion arms are pushed to move reversely by two release springs, so that two steel pipe hooks are separated from steel pipe, and the problem that manual unhooking is needed when the existing steel pipe lifting appliance is unloaded, resulting in low work efficiency is solved.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The utility model is a kind of lifting appliance for seamless steel pipe production, including connecting pipe, the both ends of connecting pipe are fixedly connected with sleeve, the inside of two sleeves is provided with expansion assembly and release assembly for releasing steel pipe, and the top of connecting pipe is provided with lifting assembly for clamping steel pipe;

[0008] The top of two sleeves is provided with sliding slot, and the front of two sleeves is provided with a plurality of equidistant arrayed insertion holes along horizontal direction, and the inside of sleeve is fixedly connected with guider on the upper and lower surfaces;

[0009] Expansion assembly includes expansion arm movably sleeved in the inside of sleeve, and steel pipe hook is installed at the end of expansion arm away from connecting pipe, and guider slot is formed on the upper and lower surfaces of expansion arm;

[0010] The releasing assembly comprises a sliding groove plate fixedly connected to the extension arm at the inner end of the sleeve, a sliding block slidably connected in the sliding groove plate, a releasing spring fixedly connected between the side of the sliding block away from the connecting pipe and the inner wall of the sliding groove plate, a screw hole communicated with the insertion hole formed in the sliding block, and a hand screw bolt threadedly sleeved in the screw hole.

[0011] The lifting assembly comprises a horizontal rod above the connecting pipe, a pull rod rotatably connected between each end of the horizontal rod and the sliding groove plate, and a lifting ring fixedly connected to the top of the horizontal rod.

[0012] The utility model further sets up that the top of connecting pipe is fixedly connected with two parallel guide rods, and the horizontal rod is movably sleeved outside the two guide rods.

[0013] The utility model further sets up that the guide comprises a T-shaped plate fixedly connected to the inner wall of the sleeve, a plurality of guide wheels rotatably connected to the two sides of the T-shaped plate, and the guide wheels roll in the corresponding guide grooves.

[0014] The utility model further sets up that the end of the extension arm away from the connecting pipe is provided with a mounting hole, and the steel pipe hook is fixed in the mounting hole by a screw.

[0015] The utility model further sets up that the steel pipe hook is L-shaped, and the inner side of the steel pipe hook is fixedly connected with an antiskid pad.

[0016] The utility model further sets up that the side of the sliding block towards the releasing spring is fixedly connected with a limiting rod, and the releasing spring is movably sleeved outside the limiting rod.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model discloses a lifting device for steel pipe, which comprises a sleeve, a connecting pipe fixedly connected to the inner wall of the sleeve, an extension arm fixedly connected to the connecting pipe, a plurality of releasing assemblies arranged on the extension arm, a lifting assembly arranged on the connecting pipe, and a plurality of steel pipe hooks arranged on the extension arm.

[0019] 2. The utility model discloses a lifting device for steel pipe, which comprises a sleeve, a connecting pipe fixedly connected to the inner wall of the sleeve, an extension arm fixedly connected to the connecting pipe, a plurality of releasing assemblies arranged on the extension arm, a lifting assembly arranged on the connecting pipe, and a plurality of steel pipe hooks arranged on the extension arm.

[0020] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments, obviously, the drawings described in the following description are only some embodiments of the present application, and for the ordinary skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 It is a schematic view of the overall structure of the present application.

[0023] Figure 2 It is a schematic view of the overall sectional structure of the present application.

[0024] Figure 3 It is a schematic view of the structure of the sleeve of the present application.

[0025] Figure 4 It is a schematic view of the structure of the guider of the present application.

[0026] Figure 5 It is a schematic view of the structure of the expansion arm of the present application.

[0027] Figure 6 It is a schematic view of the structure of the sliding block of the present application.

[0028] Figure 7 It is Figure 2 It is an enlarged schematic view of the position A in the middle.

[0029] In the drawings, the component list represented by each reference numeral is as follows:

[0030] 100, connecting pipe; 101, guide rod; 200, sleeve; 201, sliding groove; 202, insertion hole; 203, guider; 203a, T-shaped plate; 203b, guide wheel; 300, lifting assembly; 301, cross rod; 302, pull rod; 303, lifting ring; 400, expansion assembly; 401, expansion arm; 401a, guide groove; 401b, mounting port; 402, steel pipe hook; 402a, non-slip pad; 500, release assembly; 501, sliding groove plate; 502, sliding block; 502a, screw hole; 502b, limiting rod; 503, hand screw bolt; 504, release spring. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0032] Embodiment 1

[0033] Please refer to Figures 1 to 3 and Figures 5 to 7 The utility model discloses a sling for seamless steel pipe production, including the connecting pipe 100, the both ends of connecting pipe 100 are fixedly connected with the sleeve 200, the inside of two sleeves 200 is provided with the expansion assembly 400 and is used for releasing the release assembly 500 of steel pipe, and the top of connecting pipe 100 is provided with the lifting assembly 300 for clamping steel pipe,

[0034] The top of two sleeves 200 is provided with sliding slot 201, and the front of two sleeves 200 is provided with a plurality of equidistant arrayed jack 202 along the horizontal direction,

[0035] Expansion assembly 400 includes the expansion arm 401 of movable sleeve in the inside of sleeve 200, and the one end of expansion arm 401 is installed with steel pipe hook 402 away from connecting pipe 100, and the steel pipe of different length can be fixed by pulling expansion arm 401,

[0036] Release assembly 500 includes the sliding slot plate 501 of fixed connection in the inside of sleeve 200 one end of expansion arm 401, and the inside of sliding slot plate 501 is slidably connected with sliding block 502, and the release spring 504 is fixedly connected between the one side of sliding block 502 and the inner wall of sliding slot plate 501 away from connecting pipe 100, and the inside of sliding block 502 is provided with the screw hole 502a that is communicated with jack 202, and the hand screw bolt 503 is screwed in the inside of screw hole 502a, and the hand screw bolt 503 is inserted into the inside of corresponding jack 202, and is screwed into the inside of jack 202, and expansion arm 401 can be limited,

[0037] Lifting assembly 300 includes the cross bar 301 above connecting pipe 100, and the pull rod 302 is rotatably connected between the both ends of cross bar 301 and two sliding slot plate 501, and the lifting ring 303 is fixedly connected to the top of cross bar 301.

[0038] Specifically, the top of connecting pipe 100 is fixedly connected with two parallel guide rods 101, and the cross bar 301 is movably sleeved outside the two guide rods 101, and the cross bar 301 is more stable by sliding outside the two guide rods 101,

[0039] The one end of expansion arm 401 away from connecting pipe 100 is provided with mounting port 401b, and the steel pipe hook 402 is fixed in the inside of mounting port 401b by screw.

[0040] Further, the steel pipe hook 402 is L-shaped, and the inner side of steel pipe hook 402 is fixedly connected with anti-skid pad 402a, which can avoid damaging the steel pipe and make the steel pipe more stable by setting the anti-skid pad 402a,

[0041] The sliding block 502 is fixedly connected with a limiting rod 502b on the side close to the release spring 504, and the release spring 504 is movably sleeved outside the limiting rod 502b. The limiting rod 502b can prevent the release spring 504 from being excessively pressed.

[0042] The operation process of the embodiment is as follows: when it is necessary to hoist the steel pipe, first, the expansion arm 401 is pulled according to the length of the steel pipe, then the hand screw bolt 503 is inserted into the corresponding insertion hole 202 and screwed into the insertion hole 202, so that the steel pipe of a specific length can be hoisted, then the whole device is moved, so that the two steel pipe hooks 402 are located at the two ends of the steel pipe, then the steel pipe hooks 402 are pushed inward so that they are located inside the steel pipe, and then hoisting is started. During hoisting, the cross bar 301 is constantly moved upward, and then the upper ends of the two pull rods 302 are moved upward, then the two expansion arms 401 are pulled by the two sliding groove plates 501 to move inward the corresponding sleeve 200, and then the steel pipe can be lifted by the two steel pipe hooks 402.

[0043] When the steel pipe is moved to a suitable position, the cross bar 301 is released downward by the crane, and then the two expansion arms 401 are moved in the opposite direction under the push of the two release springs 504, so that the two steel pipe hooks 402 can be separated from the steel pipe, the hoisting operation is completed, manual unloading of the workers is avoided, and the work efficiency is improved.

[0044] Embodiment 2

[0045] Please refer to Figure 3 and Figure 4 On the basis of the specific embodiment one, the inside of the sleeve 200 is fixedly connected with a guide 203 on the upper and lower surfaces.

[0046] The upper and lower surfaces of the expansion arm 401 are provided with guide grooves 401a.

[0047] Specifically, the guide 203 includes a T-shaped plate 203a fixedly connected to the inner wall of the sleeve 200, and a plurality of guide wheels 203b rotatably connected to the two sides of the T-shaped plate 203a, and the guide wheels 203b roll in the corresponding guide grooves 401a. The guide wheels 203b roll in the guide grooves 401a can reduce the friction between the expansion arm 401 and the inner wall of the sleeve 200, so that the expansion arm 401 moves more smoothly and reduces wear.

[0048] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model.

Claims

1. A sling for seamless steel pipe production, comprising a connecting pipe (100); characterized in that: Both ends of the connecting pipe (100) are fixedly connected with sleeve pipes (200), the interiors of the two sleeve pipes (200) are provided with expansion assemblies (400) and release assemblies (500) for releasing the steel pipes, and the top of the connecting pipe (100) is provided with a lifting assembly (300) for clamping the steel pipes; The top of each of the two sleeve pipes (200) is provided with a sliding groove (201), and the front of each of the two sleeve pipes (200) is provided with a plurality of jack plugs (202) arranged at equal intervals in the horizontal direction, and the interiors of the two sleeve pipes (200) are fixedly connected with guides (203) on the upper and lower surfaces. The expansion assembly (400) comprises an expansion arm (401) movably sleeved in the interior of the sleeve pipe (200), and a steel pipe hook (402) is mounted at the end of the expansion arm (401) away from the connecting pipe (100), and the upper and lower surfaces of the expansion arm (401) are provided with guide grooves (401a). The release assembly (500) comprises a sliding groove plate (501) fixedly connected to the end of the expansion arm (401) in the interior of the sleeve pipe (200), a sliding block (502) slidably connected in the interior of the sliding groove plate (501), a release spring (504) fixedly connected between the side of the sliding block (502) away from the connecting pipe (100) and the inner wall of the sliding groove plate (501), a screw hole (502a) provided in the interior of the sliding block (502) and communicating with the jack plug (202), and a hand screw bolt (503) threadedly sleeved in the interior of the screw hole (502a). The lifting assembly (300) comprises a cross rod (301) above the connecting pipe (100), and pull rods (302) rotatably connected between the two ends of the cross rod (301) and the two sliding groove plates (501).

2. The sling for seamless pipe production as set forth in claim 1, wherein The top of the connecting pipe (100) is fixedly connected with two parallel guide rods (101), and the cross rod (301) is movably sleeved outside the two guide rods (101).

3. The sling for seamless pipe production as set forth in claim 1, wherein The guide (203) comprises a T-shaped plate (203a) fixedly connected to the inner wall of the sleeve pipe (200), and a plurality of guide wheels (203b) rotatably connected to the two sides of the T-shaped plate (203a) and rolling in the corresponding guide grooves (401a).

4. The seamless pipe production hanger according to claim 1, characterized in that, The end of the expansion arm (401) away from the connecting pipe (100) is provided with a mounting hole (401b), and the steel pipe hook (402) is fixed in the interior of the mounting hole (401b) by a screw.

5. The seamless pipe production hoist according to claim 1, characterized in that, The steel pipe hook (402) is L-shaped, and an anti-skid pad (402a) is fixedly connected to the inner side of the steel pipe hook (402).

6. The seamless pipe production hoist according to claim 1, characterized in that, The side of the sliding block (502) facing the release spring (504) is fixedly connected with a limiting rod (502b), and the release spring (504) is movably sleeved outside the limiting rod (502b).

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