A hoisting mechanism for a box-type transformer

Abstract

This utility model discloses a hoisting mechanism for a box-type transformer, belonging to the field of transformer hoisting technology. The hoisting mechanism for a box-type transformer includes a fixed frame and a hoisting plate fixed to the top of the fixed frame. It also includes two guide rods fixed inside the fixed frame, with two adjusting plates slidably connected to the surfaces of the two guide rods. A clamping mechanism is fixedly connected to the bottom of the two adjusting plates. The clamping mechanism includes a fixed cylinder fixed to the bottom of the two adjusting plates, with an L-shaped clamping frame slidably connected inside the fixed cylinder. The L-shaped clamping frame is used to provide abutment and hook support for the bottom of the transformer. This utility model, through the cooperation of the fixed cylinder, the L-shaped clamping frame, the limiting plate, and the adjusting bolts, can achieve bidirectional clamping and fixing of the box-type transformer in both left and right, and up and down directions. The multi-directional clamping structure effectively ensures stability during hoisting, prevents tilting caused by swaying, and significantly improves the safety of hoisting operations.

Description

Technical Field

[0001] This utility model belongs to the field of transformer hoisting technology, specifically, it relates to a hoisting mechanism for a box-type transformer. Background Technology

[0002] A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor / outdoor power distribution unit that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution equipment according to a specific wiring scheme. It organically combines transformer voltage reduction and low-voltage power distribution functions, all housed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, heat-insulated, fully enclosed, and movable steel structure box. It is particularly suitable for urban power grid construction and renovation, and represents a new type of substation that has emerged after traditional civil engineering substations. Prefabricated substations are suitable for mines, factories, oil and gas fields, and wind power stations, replacing traditional civil engineering substations and becoming a new type of complete power distribution system.

[0003] Currently, when hoisting prefabricated transformers, due to their large size and weight, workers typically use steel wire ropes to secure them to the lifting lugs on top of the transformer. However, since the prefabricated transformer is fixed in one direction, it cannot guarantee stability during hoisting and is prone to tilting due to swaying, significantly reducing the safety of the hoisting operation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a hoisting mechanism for a box-type transformer that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a hoisting mechanism for a box-type transformer, including a fixed frame and a hoisting plate fixed to the top of the fixed frame, and further including: two guide rods fixed inside the fixed frame, two adjusting plates slidably connected to the surfaces of the two guide rods, and a clamping mechanism fixedly connected to the bottom of the two adjusting plates; wherein the clamping mechanism includes a fixed cylinder fixed to the bottom of the two adjusting plates, an L-shaped clamping frame slidably connected inside the fixed cylinder, the L-shaped clamping frame being used to abut and hook support the bottom of the transformer, a limiting plate slidably connected to the surface of the fixed cylinder, and an adjusting bolt threadedly connected to the side wall of the limiting plate, the end of the adjusting bolt abutting the side wall of the fixed cylinder.

[0006] Preferably, the inner wall of the fixed frame is rotatably connected to a bidirectional lead screw via a bearing, and the two adjusting plates are threadedly connected to the surface of the bidirectional lead screw.

[0007] Preferably, the surface of the L-shaped clamping frame is provided with several adjustment holes, and the inside of the fixing cylinder is connected with a spur bolt, the end of which passes through the fixing cylinder and is inserted into the adjustment hole.

[0008] Preferably, a connecting piece is sleeved on the surface of the spur bolt, and a plug is fixedly connected to the end of the connecting piece, the plug being inserted into the adjustment hole.

[0009] Preferably, a rubber pad is fixedly connected to the top of the L-shaped clamping frame, and a rubber pad is fixedly connected to the bottom of the limiting plate.

[0010] Preferably, one end of the bidirectional lead screw passes through the fixed frame and extends to the outside, where a handwheel is fixedly connected, and a handle is fixedly connected to the surface of the handwheel.

[0011] Preferably, the clamping mechanism is provided in a plurality of units, and the plurality of clamping mechanisms are arranged symmetrically from left to right.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0013] The hoisting mechanism of this box-type transformer, through the cooperation of the fixed cylinder, L-shaped clamping frame, limiting plate and adjusting bolt, can clamp and fix the box-type transformer in both left and right and up and down. The multi-directional clamping structure can effectively ensure the stability during hoisting, prevent tilting caused by shaking, and significantly improve the safety of hoisting operations. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the hoisting mechanism for a box-type transformer proposed in this utility model;

[0016] Figure 2 This is a front structural schematic diagram of a hoisting mechanism for a box-type transformer proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the clamping mechanism structure of a hoisting mechanism for a box-type transformer proposed in this utility model;

[0018] Figure 4 This utility model proposes a hoisting mechanism for a box-type transformer. Figure 3 Schematic diagram of the structure at point A;

[0019] Figure 5 This is a schematic diagram of the limiting plate structure of the hoisting mechanism for a box-type transformer proposed in this utility model.

[0020] In the diagram: 1. Fixed frame; 2. Hanging plate; 3. Guide rod; 4. Adjusting plate; 5. Clamping mechanism; 51. Fixed cylinder; 52. L-shaped clamping frame; 53. Limiting plate; 54. Adjusting bolt; 55. Adjusting hole; 56. Claw bolt; 57. Connecting piece; 58. Insert rod; 59. Rubber pad one; 510. Rubber pad two; 6. Two-way lead screw; 7. Handwheel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] Example 1:

[0023] Reference Figures 1-5 A hoisting mechanism for a box-type transformer includes a fixed frame 1 and a hoisting plate 2 fixed to the top of the fixed frame 1. It also includes two guide rods 3 fixed inside the fixed frame 1, with two adjusting plates 4 slidably connected to the surfaces of the two guide rods 3. A clamping mechanism 5 is fixedly connected to the bottom of the two adjusting plates 4. The clamping mechanism 5 includes a fixed cylinder 51 fixed to the bottom of the two adjusting plates 4. An L-shaped clamping frame 52 is slidably connected inside the fixed cylinder 51, used for abutting and hooking support of the transformer bottom. A limit plate 53 is slidably connected to the surface of the fixed cylinder 51, and adjusting bolts 54 are threadedly connected to the side walls of the limit plate 53. The end of the bolt 54 abuts against the side wall of the fixing cylinder 51. The surface of the L-shaped clamping frame 52 is provided with several adjustment holes 55. The inside of the fixing cylinder 51 is threaded with a screw bolt 56. The end of the screw bolt 56 passes through the fixing cylinder 51 and is inserted into the adjustment hole 55. A connecting piece 57 is sleeved on the surface of the screw bolt 56. The end of the connecting piece 57 is fixedly connected with a rod 58. The rod 58 is inserted into the adjustment hole 55. A rubber pad 1 59 is fixedly connected to the top of the L-shaped clamping frame 52. A rubber pad 2 510 is fixedly connected to the bottom of the limiting plate 53. The number of clamping mechanisms 5 is several, and the several clamping mechanisms 5 are arranged symmetrically on the left and right.

[0024] In this utility model, when hoisting a box-type transformer, the top lifting plate 2 of the fixed frame 1 is first connected to the crane. Then, the crane controls the fixed frame 1 to move the guide rod 3 and the adjusting plate 4 to the top of the box-type transformer, so that the clamping mechanism 5 is located on the left and right sides of the box-type transformer. At this time, by adjusting the L-shaped clamping frame 52 inside the fixed cylinder 51, the end of the L-shaped clamping frame 52 can be engaged with the bottom of the box-type transformer for abutment and support. At the same time, by sliding the limiting plate 53 on the surface of the fixed cylinder 51, the top of the box-type transformer can be supported. And by rotating the adjusting bolt 54 on the side wall of the limiting plate 53, the limiting plate 53 can be tightly attached to the surface of the fixed cylinder 51 for fixation. By clamping and supporting the box-type transformer from top to bottom and left to right, the stability of the box-type transformer during hoisting is ensured, and the box-type transformer is prevented from being shaken and tilting during hoisting, thus further improving the safety of hoisting work.

[0025] With several adjustment holes 55 on the surface of the L-shaped clamping frame 52, the spur bolts 56 on the surface of the fixing cylinder 51 can be randomly inserted into one of the adjustment holes 55 to complete the adjustment and fixation of the L-shaped clamping frame 52 inside the fixing cylinder 51. Furthermore, by using the connecting piece 57 sleeved on the surface of the spur bolts 56, the insertion rod 58 at the end of the connecting piece 57 can also be inserted into one of the adjustment holes 55, thereby providing double limit fixation and preventing the single limit support from falling off when it is easily damaged by shear force. The setting of rubber pad 1 59 and rubber pad 2 510 can protect the box-type transformer when it is clamped from top to bottom, avoiding deformation problems caused by hard contact. Finally, the setting of several clamping mechanisms 5 can perform multi-point clamping and fixation of the box-type transformer.

[0026] Example 2:

[0027] Reference Figure 1 and Figure 2 Similar to Embodiment 1, but further: the inner wall of the fixed frame 1 is rotatably connected to a bidirectional lead screw 6 via a bearing, two adjusting plates 4 are threadedly connected to the surface of the bidirectional lead screw 6, one end of the bidirectional lead screw 6 passes through the fixed frame 1 and extends to the outside where a handwheel 7 is fixedly connected, and a handle is fixedly connected to the surface of the handwheel 7.

[0028] By rotating the bidirectional lead screw 6, the distance between the two adjusting plates 4 can be adjusted, thereby bringing the several clamping mechanisms 5 at the bottom of the adjusting plates 4 closer to each other. This allows for adjustment according to the left and right dimensions of the box-type transformer, ensuring that the clamping mechanisms 5 are tightly fitted to the box-type transformer for clamping and connection. The handwheel 7 at the end of the bidirectional lead screw 6 facilitates manual rotation by the operator, and the handle enhances the operability for the operator's hands.

[0029] In addition, the bidirectional lead screw 6 can be replaced with a motor for driving.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hoisting mechanism for a box-type transformer, comprising a fixed frame (1) and a hoisting plate (2) fixed to the top of the fixed frame (1), characterized in that, Also includes: Two guide rods (3) are fixed inside the fixed frame (1). Two adjustment plates (4) are slidably connected to the surfaces of the two guide rods (3). A clamping mechanism (5) is fixedly connected to the bottom of the two adjustment plates (4). The clamping mechanism (5) includes a fixed cylinder (51) fixed to the bottom of two adjusting plates (4). An L-shaped clamping frame (52) is slidably connected inside the fixed cylinder (51). The L-shaped clamping frame (52) is used to abut and hook the bottom of the transformer. A limiting plate (53) is slidably connected to the surface of the fixed cylinder (51). An adjusting bolt (54) is threadedly connected to the side wall of the limiting plate (53). The end of the adjusting bolt (54) abuts against the side wall of the fixed cylinder (51). The L-shaped clamp (52) has several adjustment holes (55) on its surface. The fixed cylinder (51) is internally threaded with a scissor bolt (56). The end of the scissor bolt (56) passes through the fixed cylinder (51) and is inserted into the adjustment hole (55). The surface of the spur bolt (56) is fitted with a connecting piece (57), and the end of the connecting piece (57) is fixedly connected with a plug (58), which is inserted into the adjustment hole (55).

2. The hoisting mechanism for a box-type transformer according to claim 1, characterized in that, The inner wall of the fixed frame (1) is rotatably connected to a bidirectional lead screw (6) via a bearing, and the two adjusting plates (4) are threadedly connected to the surface of the bidirectional lead screw (6).

3. The hoisting mechanism for a box-type transformer according to claim 1, characterized in that, The top of the L-shaped clamp (52) is fixedly connected to a rubber pad (59), and the bottom of the limiting plate (53) is fixedly connected to a rubber pad (510).

4. The hoisting mechanism for a box-type transformer according to claim 2, characterized in that, One end of the bidirectional lead screw (6) passes through the fixed frame (1) and extends to the outside where a handwheel (7) is fixedly connected. A handle is fixedly connected to the surface of the handwheel (7).

5. The hoisting mechanism for a box-type transformer according to claim 1, characterized in that, The clamping mechanism (5) is arranged in a plurality of units, and the plurality of clamping mechanisms (5) are arranged symmetrically on the left and right.

Images