Hoisting device for magnetic pole iron core section

Abstract

The utility model discloses a magnetic pole iron core section hoisting device which comprises a bottom plate, two clamping blocks, a transmission structure, a steel pipe and a hoisting block, the bottom plate, the clamping block and the transmission structure are all arranged in the steel pipe. The lifting block is fixedly connected to the end, opposite to the bottom plate, of the steel pipe. The clamping block is arranged between the bottom plate and the transmission structure, and the transmission structure and the bottom plate are rotationally connected through the clamping block; the clamping block comprises a sliding part and a convex column, the sliding part is connected with the bottom plate, and the convex column is connected with the transmission structure; the transmission structure comprises a conversion block, a transmission rod and a rotating rod; the rotating rod is connected with the transmission rod, the conversion block is fixedly connected to one end of the transmission rod, and two arc-shaped sliding grooves distributed in a central symmetry mode are formed in the other side, opposite to the side connected with the transmission rod, of the conversion block. The lifting appliance is exquisite in design and easy to operate, the clamping blocks stretch out and draw back through rotation of the transmission structure, the lifting appliance can be rapidly assembled and disassembled in a small hole, and stable lifting of a workpiece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic generator equipment hoisting devices, in particular to a magnetic pole core segment hoisting device. Background Art

[0002] The pole core segment of a large hydro-turbine generator set is made up of 100 stacked pole punchings weighing approximately 5 kg, with a total weight of approximately 500 kg. After the core segment is pressed on a vertical hydraulic press, specific positions on the surface are welded, and then the entire segment is lifted out of the hydraulic press.

[0003] Because the core segments are laminated, connected only by a few welds less than 3mm thick, there's a high risk of them falling apart when using magnetic lifting. Therefore, the current method of lifting the core segments is to loop wire ropes around the extensions on either side of the core segments. This involves workers manually pushing the core segments to the edge of a tooling pad, exposing the extensions. The wire ropes are then looped through the extensions and gradually lifted. The core slides across the pad until it stands upright, then is hoisted to its designated location, laid flat, and the wire ropes removed. This process requires workers to manually push the 500kg workpiece across the pad, which is labor-intensive. Furthermore, friction between the workpiece and the pad during the lifting process can cause scratches on both the workpiece edges and the pad surface. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a magnetic pole core segment lifting device, which can realize the horizontal lifting of the magnetic pole core segment from the original work position to the storage position. It is no longer necessary to manually push the heavy objects to move, which reduces the labor intensity of on-site workers. At the same time, it also avoids repeated scraping between the magnetic pole core segment and the pad, effectively protecting the surface of the product and tooling.

[0005] The utility model provides a magnetic pole core segment lifting device, and the specific technical solution is as follows:

[0006] The device includes a base plate, two clamping blocks, a transmission structure, a steel pipe and a lifting block;

[0007] The bottom plate, the clamping block and the transmission structure are all arranged in the steel pipe, and the lifting block is fixedly connected to the end of the steel pipe opposite to the bottom plate;

[0008] The clamping block is provided between the base plate and the transmission structure, and the transmission structure and the base plate are rotatably connected via the clamping block;

[0009] The clamping block includes a sliding portion and a protruding column, the sliding portion is connected to the bottom plate and slides along the bottom plate, and the protruding column is connected to the transmission structure; the steel pipe is provided with a second opening at the clamping block to accommodate the clamping block sliding out;

[0010] The transmission structure includes a conversion block, a transmission rod and a rotating rod;

[0011] The rotating rod is connected to the transmission rod, and the conversion block is fixedly connected to one end of the transmission rod; the steel pipe is provided with a first opening at the rotating rod to accommodate the rotation of the rotating rod;

[0012] The other side of the conversion block connected to the transmission rod is provided with two arc-shaped sliding grooves, the two arc-shaped sliding grooves are in a centrally symmetrical distribution structure, and the protruding columns of the clamping block are placed in the arc-shaped sliding grooves.

[0013] Furthermore, a first slide groove is provided on one side of the base plate where the base plate is connected to the card block. The first slide groove runs across the middle of one side of the base plate. The card block is placed in the first slide groove and is driven by the conversion block to slide relatively in the first slide groove.

[0014] Furthermore, the end surface dimension of the other end of the bottom plate relative to the first chute is smaller than the end surface dimension of the side where the first chute is located.

[0015] Furthermore, the sliding portion is a structure in which two adjacent corners of a cube are cut off, the inclined end face of the sliding portion faces the second opening, and the two horizontal end faces parallel to the bottom plate are provided with the boss on the side with the larger end face size.

[0016] Furthermore, the second opening of the steel pipe at the position of the clamping block has an axial diameter along the transmission rod that is smaller than the axial dimension of the clamping block along the transmission rod.

[0017] Furthermore, the sliding portion is a cubic structure, wherein the convex column is provided on one horizontal end face parallel to the bottom plate.

[0018] Furthermore, the opposite sides of the sliding parts of the two clamping blocks are arc-shaped structures.

[0019] Furthermore, the first opening is a structure that horizontally surrounds the steel pipe, the rotary rod is vertically connected to the outside of the transmission rod, and the rod body of the rotary rod extends out of the first opening of the steel pipe at the rotary rod.

[0020] Furthermore, the lifting block and the steel pipe are welded into an integral structure, and an M12 lifting eye screw hole is provided at the other end of the lifting block that is connected to the steel pipe.

[0021] Furthermore, the transmission rod is vertically connected to the rotary rod, and the rotary rod and the transmission rod are a fixedly connected integral structure or a detachable connection structure.

[0022] The beneficial effects of the utility model are as follows:

[0023] The utility model provides a device structure, wherein a conversion block of a transmission structure is provided with two annular chutes symmetrically distributed in the center, the device also includes a base plate and two clamping blocks, the protrusions of the clamping blocks are respectively placed in the annular chutes, and the sliding parts of the clamping blocks are relatively placed in the first chutes of the base plate. The rotation of the transmission structure causes the annular chutes to rotate as a whole, driving the two clamping blocks to slide in the first chutes to achieve retraction and extension. When retracting, the device is installed in the small hole of the magnetic pole core segment itself, and then the transmission structure is rotated to extend the clamping blocks outward, thereby achieving horizontal lifting of the workpiece. The device realizes the extension and retraction of the clamping blocks through the rotation of the transmission structure, realizes the rapid assembly and disassembly of the sling in the small hole, and simultaneously realizes the stable lifting of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the device.

[0025] Figure 2 It is a schematic diagram of the base plate structure.

[0026] Figure 3 It is a schematic diagram of the implementation structure of the card block.

[0027] Figure 4 It is another schematic diagram of the implementation structure of the card block.

[0028] Figure 5 It is a schematic diagram of the transmission structure.

[0029] Figure 6 It is a schematic diagram of the retracted state of the card block.

[0030] Figure 7 It is a schematic diagram of the extended state of the card block.

[0031] Explanation of the accompanying drawings: 1-base plate, 2-block, 3-conversion block, 4-transmission rod, 5-rotating rod, 6-steel pipe, 7-lifting block, 8-sliding part, 9-boss, 10-first opening, 11-second opening, 12-arc-shaped slide groove, 13-first slide groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is conventionally placed when in use, or the orientations or positional relationships conventionally understood by those skilled in the art, or the orientations or positional relationships in which the utility model product is conventionally placed when in use. These are merely for the convenience of describing the present invention 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 operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used only to distinguish descriptions and should not be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] Example 1

[0036] The first embodiment of the present invention discloses a magnetic pole core segment lifting device, such as Figure 1 As shown, the details are as follows:

[0037] The device includes a base plate 1, two clamping blocks 2, a transmission structure, a steel pipe 6 and a lifting block 7;

[0038] The base plate 1, the clamping block 2 and the transmission structure are all arranged in the steel pipe 6, and the lifting block 7 is fixedly connected to the end of the steel pipe 6 opposite to the base plate 1;

[0039] The clamping block 2 is provided between the base plate 1 and the transmission structure, and the transmission structure and the base plate 1 are rotatably connected via the clamping block 2 .

[0040] As a preferred embodiment, the lifting block 7 and the steel pipe 6 are welded into an integral structure, and an M12 lifting eye screw hole is provided at the other end of the lifting block 7 opposite to the end connected to the steel pipe 6 .

[0041] like Figure 5 As shown, the transmission structure includes a conversion block 3, a transmission rod 4 and a rotating rod 5;

[0042] The rotary rod 5 is connected to the transmission rod 4, and the conversion block 3 is fixedly connected to one end of the transmission rod 4;

[0043] As a preferred embodiment, the transmission rod 4 is vertically connected to the rotary rod 5, and the rotary rod 5 and the transmission rod 4 are a fixedly connected integral structure or a detachable connection structure;

[0044] The other side of the conversion block 3 connected to the transmission rod 4 is provided with two arc-shaped sliding grooves 12, and the two arc-shaped sliding grooves 12 are centrally symmetrically distributed.

[0045] like Figure 2 As shown, in this embodiment, a first slide groove 13 is provided on one side where the base plate 1 is connected to the block 2. The first slide groove 13 runs across the middle of one side of the base plate 1. The block 2 is placed in the first slide groove 13 and is driven by the conversion block 3 to slide relatively in the first slide groove 13.

[0046] As a preferred embodiment, the end surface dimension of the other end of the bottom plate 1 relative to the first sliding groove 13 is smaller than the end surface dimension of the side where the first sliding groove 13 is located.

[0047] Specifically, such as Figure 3 As shown, the block 2 includes a sliding portion 8 and a boss 9. The sliding portion 8 is connected to the base plate 1, placed in the first sliding groove 13 of the base plate 1, and slides along the base plate 1. The boss 9 is connected to the transmission structure.

[0048] The steel pipe 6 serves as the outer shell of the device. Openings penetrating the steel pipe 6 are provided on the outer side of one end close to the lifting block 7 and the outer side of one end close to the bottom plate 1 , which are respectively marked as a first opening 10 and a second opening 11 .

[0049] The first opening 10 is provided at the rotating rod 5 to accommodate the rotation of the rotating rod 5;

[0050] There are two second openings 11, which are arranged opposite to each other and are both located at corresponding positions in the sliding direction of the card block 2 to accommodate the card block 2 sliding out;

[0051] As a preferred embodiment, the first opening 10 is a structure that horizontally surrounds the steel pipe 6 , the rotary rod 5 is vertically connected to the outside of the transmission rod 4 , and the rod body of the rotary rod 5 extends out of the first opening 10 of the steel pipe 6 at the rotary rod 5 .

[0052] In this embodiment, the sliding portion 8 is a structure in which two adjacent corners of a cube are cut off, that is, the sliding portion 8 is a triangular structure, or a structure combining a trapezoidal cube and a cube;

[0053] One side of the inclined end surface of the sliding portion 8 faces the second opening 11, and the two horizontal end surfaces parallel to the bottom plate 1, the side with the larger end surface is provided with the protruding column 9;

[0054] As a preferred embodiment, the second opening 11 of the steel tube 6 at the position of the block 2 has an axial diameter along the transmission rod 4 that is smaller than the axial dimension of the block 2 along the transmission rod 4, so that when the length of the arc groove is longer, the block 2 is prevented from being pushed out of the first sliding groove 13.

[0055] As a preferred embodiment, the opposite sides of the sliding portions 8 of the two clamping blocks 2 are of an arcuate structure, which facilitates the sliding of the two clamping blocks 2 and reduces the collision when the two clamping blocks 2 come into contact.

[0056] like Figure 6 and Figure 7 As shown, the boss 9 of the card block 2 is placed in the arc-shaped slide groove 12, and the sliding portion 8 of the card block 2 is placed in the first slide groove 13 of the base plate 1. By pushing the rotating rod 5 to rotate the transmission rod 4, the two arc-shaped slide grooves 12 rotate as a whole. Based on the pulling or pushing of the card block 2 by the boss 9, the card block 2 is caused to slide telescopically in the first slide groove 13 of the base plate 1.

[0057] During use, the slider is retracted in the first slide groove 13 by rotating the transmission structure. After the pole core segment is pressed and welded and qualified, the device is passed through the inner hole on the core segment, and the rotary rod 5 is rotated. The block 2 is pushed to slide outward along the first slide groove 13 through the transmission structure, so that part of the block 2 extends out of the steel pipe 6 to form a hook. The hook is hooked to a side size that is 10 mm larger than the inner hole diameter. A lifting eye screw is installed on the top lifting block 7. The core is directly lifted to the designated position by the lifting equipment. After the pole core segment is placed, a pad of about 30 mm is placed on the bottom, and the rotary rod 5 on the device is toggled in the opposite direction to retract the block 2 into the first slide groove 13 and take it out.

[0058] Example 2

[0059] Embodiment 2 of the present utility model discloses a magnetic pole core segment lifting device, such as Figure 1 As shown, the details are as follows

[0060] A magnetic pole core segment lifting device, such as Figure 1 As shown, the details are as follows:

[0061] The device includes a base plate 1, two clamping blocks 2, a transmission structure, a steel pipe 6 and a lifting block 7;

[0062] The base plate 1, the clamping block 2 and the transmission structure are all arranged in the steel pipe 6, and the lifting block 7 is fixedly connected to the end of the steel pipe 6 opposite to the base plate 1;

[0063] The clamping block 2 is provided between the base plate 1 and the transmission structure, and the transmission structure and the base plate 1 are rotatably connected via the clamping block 2 .

[0064] As a preferred embodiment, the lifting block 7 and the steel pipe 6 are welded into an integral structure, and an M12 lifting eye screw hole is provided at the other end of the lifting block 7 opposite to the end connected to the steel pipe 6 .

[0065] like Figure 5 As shown, the transmission structure includes a conversion block 3, a transmission rod 4 and a rotating rod 5;

[0066] The rotary rod 5 is connected to the transmission rod 4, and the conversion block 3 is fixedly connected to one end of the transmission rod 4;

[0067] As a preferred embodiment, the transmission rod 4 is vertically connected to the rotary rod 5, and the rotary rod 5 and the transmission rod 4 are a fixedly connected integral structure or a detachable connection structure;

[0068] The other side of the conversion block 3 connected to the transmission rod 4 is provided with two arc-shaped sliding grooves 12, and the two arc-shaped sliding grooves 12 are centrally symmetrically distributed.

[0069] like Figure 2 As shown, in this embodiment, a first slide groove 13 is provided on one side where the base plate 1 is connected to the block 2. The first slide groove 13 runs across the middle of one side of the base plate 1. The block 2 is placed in the first slide groove 13 and is driven by the conversion block 3 to slide relatively in the first slide groove 13.

[0070] As a preferred embodiment, the end surface dimension of the other end of the bottom plate 1 relative to the first sliding groove 13 is smaller than the end surface dimension of the side where the first sliding groove 13 is located.

[0071] Specifically, such as Figure 4 As shown, the block 2 includes a sliding portion 8 and a boss 9. The sliding portion 8 is connected to the base plate 1, placed in the first sliding groove 13 of the base plate 1, and slides along the base plate 1. The boss 9 is connected to the transmission structure.

[0072] The steel pipe 6 serves as the outer shell of the device. Openings penetrating the steel pipe 6 are provided on the outer side of one end close to the lifting block 7 and the outer side of one end close to the bottom plate 1 , which are respectively marked as a first opening 10 and a second opening 11 .

[0073] The first opening 10 is provided at the rotating rod 5 to accommodate the rotation of the rotating rod 5;

[0074] There are two second openings 11, which are arranged opposite to each other and are both located at corresponding positions in the sliding direction of the card block 2 to accommodate the card block 2 sliding out;

[0075] As a preferred embodiment, the first opening 10 is a structure that horizontally surrounds the steel pipe 6 , the rotary rod 5 is vertically connected to the outside of the transmission rod 4 , and the rod body of the rotary rod 5 extends out of the first opening 10 of the steel pipe 6 at the rotary rod 5 .

[0076] In this embodiment, the sliding portion 8 is a cubic structure, and one of the horizontal end faces parallel to the bottom plate 1 is provided with the protruding column 9 .

[0077] As a preferred embodiment, the opposite sides of the sliding portions 8 of the two clamping blocks 2 are of an arcuate structure, which facilitates the sliding of the two clamping blocks 2 and reduces the collision when the two clamping blocks 2 come into contact.

[0078] like Figure 6 and Figure 7 As shown, the boss 9 of the card block 2 is placed in the arc-shaped slide groove 12, and the sliding portion 8 of the card block 2 is placed in the first slide groove 13 of the base plate 1. By pushing the rotating rod 5 to rotate the transmission rod 4, the two arc-shaped slide grooves 12 rotate as a whole. Based on the pulling or pushing of the card block 2 by the boss 9, the card block 2 is caused to slide telescopically in the first slide groove 13 of the base plate 1.

[0079] During use, the slider is retracted in the first slide groove 13 by rotating the transmission structure. After the pole core segment is pressed and welded and qualified, the device is passed through the inner hole on the core segment, and the rotary rod 5 is rotated. The block 2 is pushed to slide outward along the first slide groove 13 through the transmission structure, so that part of the block 2 extends out of the steel pipe 6 to form a hook. The hook is hooked to a side size that is 10 mm larger than the inner hole diameter. A lifting eye screw is installed on the top lifting block 7. The core is directly lifted to the designated position by the lifting equipment. After the pole core segment is placed, a pad of about 30 mm is placed on the bottom, and the rotary rod 5 on the device is toggled in the opposite direction to retract the block 2 into the first slide groove 13 and take it out.

[0080] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A magnetic pole core segment lifting device, characterized in that: The device includes a base plate, two clamping blocks, a transmission structure, a steel pipe and a lifting block; The bottom plate, the clamping block and the transmission structure are all arranged in the steel pipe, and the lifting block is fixedly connected to one end of the steel pipe opposite to the bottom plate; The clamping block is arranged between the bottom plate and the transmission structure, and the transmission structure and the bottom plate are rotatably connected via the clamping block; The block includes a sliding portion and a convex column, the sliding portion is connected to the bottom plate and slides along the bottom plate, and the convex column is connected to the transmission structure; the steel pipe is provided with a second opening at the block to accommodate the block sliding out; The transmission structure comprises a conversion block, a transmission rod and a rotating rod; The rotary rod is connected to the transmission rod, and the conversion block is fixedly connected to one end of the transmission rod; the steel pipe is provided with a first opening at the rotary rod to accommodate the rotation of the rotary rod; The other side of the conversion block connected to the transmission rod is provided with two arc-shaped slide grooves, the two arc-shaped slide grooves are centrally symmetrically distributed, and the protruding columns of the clamping block are placed in the arc-shaped slide grooves.

2. The pole core segment lifting device according to claim 1, characterized in that: A first slide groove is provided on one side of the bottom plate connected to the clamping block. The first slide groove runs across the middle of one side of the bottom plate. The clamping block is placed in the first slide groove and driven by the conversion block to slide relatively in the first slide groove.

3. The pole core segment lifting device according to claim 2, characterized in that: The end surface dimension of the other end of the bottom plate relative to the first slide groove is smaller than the end surface dimension of the side where the first slide groove is located.

4. The pole core segment lifting device according to claim 1, characterized in that: The sliding part is a structure in which two adjacent corners of a cube are cut off, one side of the inclined end face of the sliding part faces the second opening, and the two horizontal end faces parallel to the bottom plate are provided with the protruding column on the side with the larger end face size.

5. The magnetic pole core segment lifting device according to claim 4, characterized in that: The second opening of the steel pipe at the position of the clamping block has an axial diameter width along the transmission rod that is smaller than the axial dimension of the clamping block along the transmission rod.

6. The magnetic pole core segment lifting device according to claim 1, characterized in that: The sliding part is a cubic structure, wherein a horizontal end surface parallel to the bottom plate is provided with the convex column.

7. The magnetic pole core segment lifting device according to any one of claims 4 to 6, characterized in that: The opposite side of the sliding parts of the two clamping blocks is a curved surface structure.

8. The pole core segment lifting device according to claim 1, characterized in that: The first opening is a structure that horizontally surrounds the steel pipe, the rotary rod is vertically connected to the outside of the transmission rod, and the rod body of the rotary rod extends out of the first opening of the steel pipe at the rotary rod.

9. The pole core segment lifting device according to claim 1, characterized in that: The lifting block and the steel pipe are welded into an integral structure, and an M12 lifting eye screw hole is provided at the other end of the lifting block opposite to the steel pipe.

10. The pole core segment lifting device according to claim 1, characterized in that: The transmission rod is vertically connected to the rotary rod, and the rotary rod and the transmission rod are a fixedly connected integral structure or a detachable connection structure.

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