Adjustable mechanical lifting structure for reloading trolley

By designing an adjustable mechanical lifting structure consisting of outrigger pads, outrigger rotating pads, and outrigger bushings, the height adjustment and stability issues of the trolley during gas turbine installation were solved, enabling convenient height adjustment and level control.

CN223953637UActive Publication Date: 2026-02-27HARBIN CHENGLIN TECH
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Patent Information

Application Number
CN202520202379.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-02-27
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

The existing replacement trolley cannot effectively adjust its height during the installation and disassembly of the gas turbine, resulting in high labor intensity for workers and unstable installation.

Method used

An adjustable mechanical lifting structure was designed, comprising outrigger pads, outrigger rotating pads, outrigger bushings, rolling thrust bearings, outrigger shafts, outrigger base plates, and outrigger reinforcing plates. The lifting and lowering adjustment of the outriggers is achieved through threaded connections and screw fixation, reducing friction and improving structural strength.

Benefits of technology

The height adjustment and horizontal stability of the trolley were achieved, reducing labor intensity and improving the convenience and safety of installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of reloading trolleys, in particular to an adjustable mechanical lifting structure for a reloading trolley. The utility model aims to provide an adjustable mechanical lifting structure for a reloading trolley. In order to solve the technical problem, the utility model provides the following technical scheme: the adjustable mechanical lifting structure for the reloading trolley comprises a supporting leg gasket, a supporting leg rotating pad, a supporting leg shaft sleeve, an M10 * 30 screw, a rolling thrust bearing, a supporting leg, a supporting leg shaft rod, a supporting leg bottom plate, a supporting leg reinforcing plate and a supporting leg push rod, according to the adjustable mechanical lifting structure for the reloading trolley, lifting of the supporting leg shaft rod is controlled by adjusting the supporting leg rotating pad, so that the height of the whole reloading trolley is adjusted, the situation that the height of the reloading trolley cannot be adjusted when the height is not enough is avoided, and the height does not need to be redesigned and adjusted on site; and the labor intensity of workers is reduced to a certain extent.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a reequipping dolly technical field more specifically, it is a reequipping dolly with adjustable mechanical lifting structure. BACKGROUND

[0002] Since 1970, due to the superior performance of gas turbine device, while having small size, power density, fast start, easy maintenance and other characteristics, it has been widely used in industrial power generation, offshore platform and gas-steam combined cycle power station and other fields. The gas turbine is composed of a gas generator and a power turbine. In order to ensure the normal, safe and reliable operation and maintenance of the gas turbine, the gas turbine is usually installed above the gas turbine chassis. However, when the gas turbine needs to be installed or disassembled for the first time or cannot operate due to mechanical failure, the reequipping dolly is used to move the gas turbine from the top of the chassis or install it on the top of the chassis. However, due to the uncertainty of the site, the supporting legs of the reequipping dolly need to be designed in an adjustable form.

[0003] Therefore, a reequipping dolly with adjustable mechanical lifting structure is needed. SUMMARY

[0004] The utility model discloses a reequipping dolly with adjustable mechanical lifting structure; in order to solve the above-mentioned technical problem, the utility model provides the following technical scheme: a reequipping dolly with adjustable mechanical lifting structure, including a supporting leg gasket, a supporting leg rotating pad, a supporting leg shaft sleeve, four M10*30 screws, a rolling thrust bearing, a supporting leg, a supporting leg shaft rod, a supporting leg bottom plate, a supporting leg reinforcing plate and two supporting leg push rods.

[0005] The supporting leg shaft rod is connected to the supporting leg rotating pad by screwing.

[0006] The supporting leg shaft sleeve is rotatably connected to the outer ring of the supporting leg rotating pad, and the supporting leg is rotatably connected to the outer ring of the supporting leg shaft sleeve.

[0007] The rolling thrust bearing is fixedly connected to the inside of the supporting leg shaft sleeve.

[0008] The M10*30 screws are fixedly connected to the inside of the supporting leg shaft sleeve and in contact with the supporting leg rotating pad. ADVANTAGEOUS EFFECTS

[0009] 1. A reequipping dolly with adjustable mechanical lifting structure, by adjusting the supporting leg rotating pad to control the lifting of the supporting leg shaft rod, the height of the entire reequipping dolly can be adjusted, avoiding the situation that the reequipping dolly cannot be adjusted when the height is not enough or too high, without the need for on-site redesign of the height adjustment, which reduces the labor intensity of the workers to a certain extent.

[0010] 2. The refueling trolley is generally equipped with four legs, which can be adjusted in height during installation to keep the whole trolley horizontal, avoiding the problem of the trolley tilting due to uneven ground. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the front view of the utility model.

[0012] Figure 2 is Figure 1 A view in the DETAILED DESCRIPTION

[0013] A kind of adjustable mechanical lifting structure for refueling trolley, the leg rotating pad 6 is screwed into the leg shaft 2 by thread connection, the leg shaft 2 is welded and fixed above and below the refueling trolley, to ensure that the leg rotating pad 6 rotates while the leg shaft 2 does not rotate in the same direction, so as to achieve the purpose of adjusting the height.

[0014] A kind of adjustable mechanical lifting structure for refueling trolley, the leg rotating pad 6 is screwed into the leg shaft sleeve 5 by thread connection, and the leg shaft sleeve 5 is screwed into the leg 1 by thread connection;The leg shaft sleeve 5 plays a protective role to avoid damaging the leg 1 while rotating the rotating pad 6.

[0015] A kind of adjustable mechanical lifting structure for refueling trolley, the leg rotating pad 6 is screwed into the leg shaft sleeve 5 by thread connection, and the leg shaft sleeve 5 is screwed into the leg 1 by thread connection;The leg shaft sleeve 5 plays a protective role to avoid damaging the leg 1 while rotating the rotating pad 6.

[0016] A kind of adjustable mechanical lifting structure for refueling trolley, the leg rotating pad 6 is screwed into the leg shaft sleeve 5 by thread connection, and the leg shaft sleeve 5 is screwed into the leg 1 by thread connection;The leg shaft sleeve 5 plays a protective role to avoid damaging the leg 1 while rotating the rotating pad 6.

[0017] A kind of adjustable mechanical lifting structure for refueling trolley, after installing the leg rotating pad 6, the leg shaft sleeve 5 and the rolling thrust bearing 3, two M10*30 screws 4 are used to fix them;The M10*30 screw 4 is screwed through the leg 1 and the leg shaft sleeve 5 by thread connection and contacts the leg rotating pad 6, the purpose of using double M10*30 screws 4 is to better play the role of fixation, avoiding the possibility of tilting by using a M10*30 screw 4 for fixation.

[0018] The application discloses an adjustable mechanical lifting structure for a reloading trolley, a support leg bottom plate 9 is welded in the middle below a support leg 1, support leg reinforcing plates 10 are symmetrically arranged above the support leg bottom plate 9 and are welded with the support leg bottom plate 9 and the support leg 1 respectively to make them into a whole; the four support leg reinforcing plates 10 can improve the overall strength of the adjustable mechanical lifting structure for the reloading trolley, ensure that deformation is reduced and stress is enhanced during use; the support leg bottom plate 9 can adapt to the reloading trolley to select the size of different wheels in different use environments, so that the reloading trolley can be suitable for a plurality of wheels.

[0019] The application discloses an adjustable mechanical lifting structure for a reloading trolley, a support leg rotating pad 6 is fixed with a support leg push rod 8 in a round hole of the support leg rotating pad 6; clockwise rotating the support leg push rod 8 can drive the support leg rotating pad 6 to rotate clockwise simultaneously, so as to reduce the height of the adjustable mechanical lifting structure for the reloading trolley; counterclockwise rotating the support leg push rod 8 can drive the support leg rotating pad 6 to rotate counterclockwise simultaneously, so as to increase the height of the adjustable mechanical lifting structure for the reloading trolley.

Claims

1. An adjustable mechanical lifting structure for a changing trolley, characterized in that: The utility model relates to a kind of supporting leg of crane, including supporting leg (1), supporting leg axle rod (2), rolling thrust bearing (3), screw (4), supporting leg axle sleeve (5), supporting leg rotary pad (6) supporting leg gasket (7), supporting leg push rod (8), supporting leg bottom plate (9), supporting leg reinforcing plate (10), supporting leg rotary pad (6) is screw-connected with supporting leg axle rod (2) in inner thread, and supporting leg axle rod (2) is fixed by welding with the change of trolley on top;The outer ring of supporting leg rotary pad (6) rotates supporting leg axle sleeve (5), and the outer ring of supporting leg axle sleeve (5) rotates supporting leg (1);Rolling thrust bearing (3) is fixed in supporting leg axle sleeve (5).

2. The adjustable mechanical lifting structure for a refill trolley according to claim 1, characterized in that: Before installing supporting leg rotary pad (6), supporting leg gasket (7) needs to be installed on the top of supporting leg axle sleeve (5).

3. The adjustable mechanical lifting structure for a change car according to claim 2, characterized in that: The M10*30 screw (4) is fixed in supporting leg (1) and supporting leg axle sleeve (5) and contacts with supporting leg rotary pad (6).

4. The adjustable mechanical lifting structure for a change car according to claim 2, wherein: Supporting leg bottom plate (9) is welded in the middle below supporting leg (1), and supporting leg reinforcing plate (10) is symmetrically arranged above supporting leg bottom plate (9) and is welded with supporting leg bottom plate (9) and supporting leg (1) respectively to make it a whole.

5. The adjustable mechanical lifting structure for a change car according to claim 2, wherein: Supporting leg push rod (8) is fixed in the round hole of supporting leg rotary pad (6).