A transport device for large instrument transformers

Abstract

This utility model discloses a transport device for large instrument transformers, relating to the field of large instrument transformer transport technology. Its main technical solution includes a main body and hook assemblies. The upper surface of the main body has a receiving groove extending from one end to the other, used to accommodate the instrument transformer. Two hook assemblies are connected to the main body, positioned opposite each other at the two ends of the receiving groove, and used to hook onto the two ends of the instrument transformer. This is intended to reduce the risk of the instrument transformer sliding forward or backward due to inertia or bumps during transport, thereby improving handling stability and reducing safety risks. Simultaneously, it aims to improve the overall stability of the handling process and reduce the risk of accidents caused by relative sliding or overturning of the instrument transformer.

Description

Technical Field

[0001] This utility model relates to the field of large instrument transformer transport circuit technology, specifically to a transport device for large instrument transformers. Background Technology

[0002] Instrument transformers are broadly classified into two categories: voltage transformers and current transformers. Voltage transformers are used in high-voltage and ultra-high-voltage power systems for measuring voltage and power. Current transformers are used for measuring alternating current, measuring alternating energy, and for protection in electric drive lines.

[0003] A prior art discloses a combined transport vehicle for transporting large current transformers, comprising a main vehicle for supporting the front end of the current transformer and an auxiliary vehicle for supporting the rear end of the current transformer. The main vehicle includes a main frame, first wheels, and a first support frame for supporting the front end of the current transformer, with the first support frame matching the shape of the front end of the current transformer. The auxiliary vehicle includes a secondary frame, second wheels, and a second support frame for supporting the rear end of the current transformer. In use, the front end of the current transformer is placed on the first support frame of the main vehicle, and the rear end of the current transformer is placed on the second support frame of the auxiliary vehicle. However, in practical applications, because the main vehicle lacks an effective fixing device for the front end of the current transformer, the transformer may axially slide or shift during transportation, causing the auxiliary vehicle to slide relative to the main vehicle. This not only affects the stability of the transport but also poses a significant safety risk. Utility Model Content

[0004] The purpose of this utility model is to provide a transportation device for large current transformers, which solves the problem that in the actual application of existing combined transport vehicles, the current transformer may slide axially or be displaced during transportation because the main vehicle is not equipped with an effective fixing device for the front end of the current transformer. This causes the auxiliary vehicle to slide relative to the main vehicle, which not only affects the stability of transportation but also poses a significant safety risk.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A transport device for a large current transformer includes a main body and hook-and-hook assemblies. The upper surface of the main body has a receiving groove that extends from one end of the main body to the other end and is used to receive the current transformer. The hook-and-hook assemblies are connected to the main body. Two hook-and-hook assemblies are provided and are disposed opposite to each other at the two ends of the receiving groove. The two hook-and-hook assemblies are used to hook onto the two ends of the current transformer respectively.

[0007] A further technical solution is that the hook assembly includes two hooks, and the two hooks are disposed opposite to each other on both sides of the main body.

[0008] A further technical solution is: the hook includes a telescopic rod and a hook body; the telescopic rod is connected to the main body; the hook body is connected to the end of the telescopic rod away from the main body.

[0009] A further technical solution is as follows: the telescopic rod includes a first rod body and a second rod body; one end of the first rod body is connected to the main body; the other end of the first rod body has a threaded hole; the threaded hole extends from the other end of the first rod body toward one end of the first rod body; the second rod body is screwed into the threaded hole; the end of the second rod body away from the first rod body is connected to the hook body.

[0010] A further technical solution is that the hook also includes a connecting rope; the two ends of the connecting rope are respectively connected to the main body and the first rod.

[0011] A further technical solution is that the hook further includes a connecting rod; the connecting rod is connected to the end of the connecting rope away from the first rod body, and the end of the connecting rod away from the connecting rope is slidably disposed on the main body, wherein the connecting rod can slide along the bottom of the receiving groove toward the opening of the receiving groove.

[0012] A further technical solution is that casters are provided on the lower surface of the main body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] On the one hand, by installing hook assemblies at both ends of the receiving slot, the two ends of the current transformer are axially limited, which aims to reduce the risk of the current transformer sliding back and forth due to inertia or bumps during transportation, thereby improving handling stability and reducing safety risks. On the other hand, the receiving slot provides lateral positioning, and the hook assemblies achieve axial fixation, forming a "bidirectional constraint," which aims to improve the overall stability of the handling process and reduce the risk of accidents caused by relative sliding or tipping of the current transformer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a transport device for a large instrument transformer in this embodiment.

[0016] The attached diagram shows the markings and corresponding component names:

[0017] 1-Main body; 2-Accommodation slot;

[0018] 3-Hook; 31-Telescopic rod; 311-First rod body; 312-Second rod body; 32-Hook body; 33-Connecting rope; 34-Connecting rod;

[0019] 4- Casters. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Example 1: This example provides a transport device for a large instrument transformer, such as... Figure 1 As shown, the device includes a main body 1 and a hook assembly. The upper surface of the main body 1 is provided with a receiving groove 2, which extends from one end of the main body 1 to the other end and is used to accommodate a current transformer. The hook assembly is connected to the main body 1, and there are two hook assemblies. The two hook assemblies are arranged opposite each other at the two ends of the receiving groove 2 and are used to hook onto the two ends of the current transformer.

[0022] For example, during implementation, the main body 1 has sufficient structural strength and rigidity to support the weight of a large current transformer. A receiving groove 2 is provided on the upper surface of the main body 1, extending from one end of the main body 1 to the other end. The longitudinal cross-sectional shape of the receiving groove 2 is an arc or V that matches the outer contour of the current transformer, and the receiving groove 2 is used to accommodate and limit the current transformer to reduce the lateral displacement of the current transformer from one side of the main body 1 to the other side.

[0023] The hook assembly is connected to the main body 1 by welding, screwing, hinge, or other methods. Two hook assemblies are provided, positioned opposite each other at both ends of the receiving groove 2. The hook assembly can employ adjustable metal hooks, snap-fit ​​mechanisms, or hook structures with locking mechanisms to flexibly adapt to the flanges, lifting lugs, and other structures at the ends of different types of current transformers.

[0024] During use, the large instrument transformer is first axially slid into or hoisted into the receiving groove 2 on the main body 1, and then secured in the receiving groove 2 from its upper surface using cables, wire ropes, or other structures. Next, hook assemblies at both ends of the main body 1 are used to hook onto lifting rings or flanges at both ends of the instrument transformer, thereby achieving axial constraint on the front and rear ends of the instrument transformer. On the one hand, by setting hook assemblies at both ends of the receiving groove 2, the two ends of the instrument transformer are axially limited, aiming to reduce the risk of the instrument transformer sliding forward or backward due to inertia or bumps during transportation, thus improving handling stability and reducing safety risks. On the other hand, the receiving groove 2 provides lateral positioning, while the hook assemblies achieve axial fixation, forming a "bidirectional constraint," aiming to improve the overall stability of the handling process and reduce the risk of accidents caused by relative sliding or tipping of the instrument transformer.

[0025] In a preferred embodiment, a buffer material made of materials such as rubber pads or polyurethane layers can be provided in the receiving groove 2 to protect the surface insulation layer of the transformer.

[0026] Example 2: Based on Example 1 above, as follows Figure 1 As shown, in this embodiment, the hook assembly includes two hooks 3, and the two hooks 3 are disposed opposite to each other on both sides of the main body 1.

[0027] For example, in implementation, the hook assembly includes two hooks 3, which are positioned opposite each other on both sides of the main body 1. The hooks 3 can be made of high-strength metal materials such as Q345 steel or alloy steel, possessing sufficient load-bearing capacity and resistance to deformation. The hooks 3 are connected to the main body 1 by welding, bolting, or hinged connection with locking pins.

[0028] During use, the two hooks 3 of one hook assembly simultaneously hook onto the flange, lifting lug, and other structures at one end of the current transformer from both sides, while the two hooks 3 of the other hook assembly simultaneously hook onto the flange, lifting lug, and other structures at the other end of the current transformer from both sides, forming a four-point hook structure (front left, front right, rear left, rear right) to achieve omnidirectional axial restraint at both ends of the current transformer. On one hand, compared to single-sided or central single-point hooking, the double-sided symmetrical hooks 3 evenly distribute the axial tension to both sides of the main body 1, aiming to reduce the risk of structural deformation or localized fracture caused by off-center loading, thereby improving connection stability and load-bearing safety. On the other hand, large current transformers are typically slender cylindrical structures, prone to torsional vibration around their own axis or lateral tilting due to road bumps during transportation. The double-sided hooks 3 generate a lateral clamping torque, aiming to effectively suppress the risk of torsional vibration (torsional vibration) and lateral tilting of the current transformer during transportation.

[0029] Example 3: Based on Example 2 above, as follows Figure 1 As shown, in this embodiment, the hook 3 includes a telescopic rod 31 and a hook body 32; the telescopic rod 31 is connected to the main body 1; the hook body 32 is connected to the end of the telescopic rod 31 away from the main body 1.

[0030] For example, in implementation, the hook 3 mentioned above includes a telescopic rod 31 and a hook body 32.

[0031] The telescopic rod 31 can adopt a telescopic structure such as a sleeve-type telescopic rod 31, a threaded adjusting rod, or a hydraulic or pneumatic telescopic mechanism. The telescopic rod 31 is typically made of high-strength metal materials such as Q345 steel or aluminum alloy, possessing sufficient rigidity and bending resistance. One end of the telescopic rod 31 is connected to the main body 1 by welding, screwing, or hinged connection with a locking pin. The sleeve-type telescopic rod 31 consists of inner and outer sleeves and is locked in any position by a locking bolt or pin. The threaded adjusting rod allows for fine-tuning of its length by rotating an adjusting screw and is secured with a locking nut.

[0032] The hook 32 is connected to the end of the telescopic rod 31 away from the main body 1 by means of welding, screwing or other methods, and the hook 32 is used to hook onto the flange, lifting lug or other structures at the end of the transformer.

[0033] During use, the large instrument transformer is axially slid into or hoisted into the receiving groove 2 on the main body 1. Then, using cables, wire ropes, or other structures, the instrument transformer is secured in the receiving groove 2 from its upper surface. Based on the actual positions of the flanges at both ends of the instrument transformer, the lengths of the telescopic rods 31 of the front and rear sets of hooks 3 are adjusted so that the hooks 32 are hooked onto the flanges, lifting lugs, or other structures at the ends of the instrument transformer. The telescopic rods 31 allow the hooks 3 to be adjusted axially within a certain range, aiming to accommodate instrument transformers of different lengths.

[0034] Example 4: Based on Example 3 above, as follows Figure 1 As shown, in this embodiment, the telescopic rod 31 includes a first rod body 311 and a second rod body 312; one end of the first rod body 311 is connected to the main body 1; the other end of the first rod body 311 has a threaded hole; the threaded hole extends from the other end of the first rod body 311 toward one end of the first rod body 311; the second rod body 312 is screwed into the threaded hole; the end of the second rod body 312 away from the first rod body 311 is connected to the hook body 32.

[0035] For example, in implementation, the telescopic rod 31 includes a first rod body 311 and a second rod body 312.

[0036] The first rod 311 is a fixed section. One end of the first rod 311 is connected to the main body 1 by welding, screwing, or hinge with locking pin, and the other end of the first rod 311 is provided with an axial threaded hole.

[0037] The second rod 312 is an adjustable section. One end of the second rod 312 is machined into an external thread structure, and the second rod 312 is screwed into the threaded hole of the first rod 311. The other end of the second rod 312 is connected to the hook 32 by welding, screwing, or integral molding.

[0038] During use, the second rod 312 is rotated to screw into or out of the threaded hole of the first rod 311, thereby achieving the purpose of continuous, stepless length adjustment of the telescopic rod 31.

[0039] Example 5: When the operator rotates the second rod 312 to adjust the length of the telescopic rod 31, there is a possibility that when the telescopic rod 31 reaches the specified length, the hook 32 will be oriented outwards from the steering body 1, causing difficulty in hooking and requiring repeated adjustments, resulting in low work efficiency. Therefore, in order to reduce the risk of the hook 32 being oriented outwards from the steering body 1, causing difficulty in hooking and requiring repeated adjustments, thus resulting in low work efficiency, based on the above Example 4, as follows... Figure 1 As shown, in this embodiment, the hook 3 further includes a connecting rope 33; the two ends of the connecting rope 33 are respectively connected to the main body 1 and the first rod 311.

[0040] For example, in implementation, the hook assembly also includes a flexible connecting rope 33, such as a steel wire rope, high-strength nylon rope, or metal chain. One end of the connecting rope 33 is connected to the main body 1 by welding, screwing, or other methods, and the other end is connected to one end of the first rod 311 or the second rod 312 by welding, screwing, or other methods. After rotating the second rod 312 to adjust the length of the telescopic rod 31, the hook 3 on the second rod 312 can be twisted to turn inward toward the main body 1. This aims to reduce the risk of the hook 32 turning outward toward the main body 1 during the adjustment process, causing difficulty in hooking, requiring repeated adjustments, and thus reducing work efficiency.

[0041] Example 6: Based on Example 4 above, as follows Figure 1 As shown, in this embodiment, the hook 3 further includes a connecting rod 34; the connecting rod 34 is connected to the end of the connecting rope 33 away from the first rod body 311, and the end of the connecting rod 34 away from the connecting rope 33 is slidably disposed on the main body 1, wherein the connecting rod 34 can slide along the bottom of the receiving groove 2 toward the opening of the receiving groove 2.

[0042] For example, in implementation, the hook 3 further includes a connecting rod 34. One end of the connecting rod 34 is connected to the end of the connecting rope 33 away from the first rod body 311 by welding, screwing, or other means. The other end of the connecting rod 34 is slidably mounted on the main body 1 and can slide along the bottom of the receiving groove 2 towards the groove opening (i.e., vertically). In one embodiment, a slider is connected to the other end of the connecting rod 34, and a sliding groove is opened on the side wall of the main body 1. The sliding connection between the connecting rod 34 and the main body 1 is achieved by the slider cooperating with the sliding groove. In another embodiment, a longitudinal connecting rod 34 is provided on the upper surface of the main body 1, and an annular ring is provided at the other end of the connecting rod 34. The sliding connection between the connecting rod 34 and the main body 1 is achieved by fitting the annular ring onto the longitudinal connecting rod 34.

[0043] During use, the large instrument transformer is axially slid into or hoisted into the receiving groove 2 on the main body 1. Then, using cables, wire ropes, or other structures, the instrument transformer is secured in the receiving groove 2 from its upper surface. The height of the end flange, lifting lugs, and other structures of the instrument transformer is observed, and the height of the connecting rod 34 is adjusted accordingly to align the hook 32 with the end flange, lifting lugs, and other structures of the instrument transformer. This aims to achieve a non-uniform lifting point that can accommodate instrument transformers with different structures, thereby greatly improving the versatility and compatibility of the transport device.

[0044] Example 7: Based on any of the examples 1-6 above, such as... Figure 1 As shown, in this embodiment, casters 4 are provided on the lower surface of the main body 1.

[0045] For example, during implementation, the lower surface of the main body 1 is connected to casters 4 by means of screw fixing, snap-fit, or other methods, and the casters 4 are swivel wheels with brake devices. Four casters 4 are provided, and these four casters 4 are evenly distributed at the four corners of the lower surface of the main body 1.

[0046] When it is necessary to move the current transformer, first release the brake on the caster 4 equipped with a braking device. Then, the main body 1 can be easily pushed or pulled, and the rolling of the caster 4 allows the main body 1 to move flexibly on the ground. This is intended to facilitate the transportation of the current transformer by the operator.

[0047] Upon reaching the target position, depress or activate the brakes on all the casters 4 to lock them in place. This aims to reduce the risk of the main body 1 moving or sliding.

[0048] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A transport device for large transformers, characterized in that, include: The main body (1) has a receiving groove (2) on its upper surface. The receiving groove (2) extends from one end of the main body (1) to the other end of the main body (1) and is used to accommodate a current transformer. Hook assembly, the hook assembly is connected to the main body (1), two hook assemblies are provided, the two hook assemblies are arranged opposite each other at both ends of the receiving groove (2), and the two hook assemblies are used to hook onto the two ends of the current transformer respectively.

2. The transport device according to claim 1, characterized in that: The hook assembly includes two hooks (3), and the two hooks (3) are disposed opposite to each other on both sides of the main body (1).

3. The transport device according to claim 2, characterized in that: The hook (3) includes a telescopic rod (31) and a hook body (32); The telescopic rod (31) is connected to the main body (1); The hook (32) is connected to the end of the telescopic rod (31) away from the main body (1).

4. The transport device according to claim 3, characterized in that: The telescopic rod (31) includes a first rod body (311) and a second rod body (312); One end of the first rod (311) is connected to the main body (1); The other end of the first rod (311) is provided with a threaded hole; The threaded hole extends from one end of the first rod (311) to the other end of the first rod (311); The second rod (312) is screwed into the threaded hole; The end of the second rod (312) away from the first rod (311) is connected to the hook (32).

5. The transport device according to claim 4, characterized in that: The hook (3) also includes a connecting rope (33); The two ends of the connecting rope (33) are respectively connected to the main body (1) and the first rod (311).

6. The transport device according to claim 5, characterized in that: The hook (3) also includes a connecting rod (34); The connecting rod (34) is connected to the end of the connecting rope (33) away from the first rod body (311), and the end of the connecting rod (34) away from the connecting rope (33) is slidably disposed on the main body (1). The connecting rod (34) can slide along the bottom of the receiving groove (2) toward the opening of the receiving groove (2).

7. The transport device according to any one of claims 1-6, characterized in that: Casters (4) are provided on the lower surface of the main body (1).

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