CN219705010U - Large-scale hydro-cylinder lower extreme cover dismouting platform - Google Patents

Abstract

The large-scale hydro-cylinder lower end cover dismouting platform, including the mount pad, the mount pad lower extreme is installed on the support, and worm gear screw elevating system is installed to the mount pad upper end, and worm gear screw elevating system drives the lift pad and reciprocates, installs ball screw mechanism on the lift pad, and ball screw mechanism drives staple bolt frame back and forth movement; the hoop frame is provided with a first hoop and a second hoop, and the first hoop and the second hoop are fixed to the lower end cover. The disassembly and assembly platform for the lower end cover of the large-sized oil cylinder provided by the utility model saves the overhaul period and ensures the safety of operators.

Description

Large-scale hydro-cylinder lower extreme cover dismouting platform

Technical Field

The utility model relates to an oil cylinder, in particular to a large-scale oil cylinder lower end cover dismounting platform.

Background

The deep hole oil cylinder is important flood discharging equipment in three gorges, water retaining and flood discharging mainly depend on the flood discharging deep hole oil cylinder to provide opening and closing force so as to open or close a deep hole arc door, the deep hole oil cylinder is overhauled every certain year according to the relevant standard requirements of equipment maintenance, and particularly, the deep hole oil cylinder is required to be disassembled and overhauled integrally, parts of a lower end cover are cleaned, and the lower end cover is replaced to be sealed.

The parameters of the parts of the deep hole oil cylinder are as follows:

a piston rod: 12t, 380mm diameter, 13500mm length;

hanging head: 3t, length 1650mm, width 1000mm;

and a lower end cover: 1.1t, the diameter of a big circle is 954mm, the diameter of a small circle is 600mm, and the height is 480mm;

and (3) a piston: 830kg, a diameter of 650mm and a height of 520 mm.

At present, the lower end cover of the oil cylinder is mainly positioned by a single-beam crane of a factory building and then is detachable after being matched with a hanging strip.

The defects of the existing method mainly include the following aspects:

1) In terms of disassembly and assembly efficiency: traditional dismouting operating efficiency is lower, when dismantling and the equipment to the lower extreme cover, all needs the hoist to assist, and the hoist easily leads to rocking of part, can cause certain influence to the dismouting.

2) Quality aspect: the quality of the oil cylinder parts is affected to a certain extent, and the oil cylinder parts are easy to shake in a hoisting mode, so that collision among the parts can be caused;

3) Personnel safety aspects: the lower end cover has the possibility of toppling over in the process of dismantling and installing, and has higher operation risk.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a large-scale oil cylinder lower end cover dismounting platform, which improves the lower end cover dismounting efficiency, shortens the overhaul period for enterprises and saves the overhaul cost.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the large-scale hydro-cylinder lower end cover dismouting platform, including the mount pad, the mount pad lower extreme is installed on the support, and worm gear screw elevating system is installed to the mount pad upper end, and worm gear screw elevating system drives the lift pad and reciprocates, installs ball screw mechanism on the lift pad, and ball screw mechanism drives staple bolt frame back and forth movement; the hoop frame is provided with a first hoop and a second hoop, and the first hoop and the second hoop are fixed to the lower end cover.

The lower end of the bracket is provided with a universal wheel and a foot cup; the foot cup is connected with the supporting leg of the bracket through a screw rod in a threaded manner and is adjusted in an up-down lifting manner.

Armrests are arranged at the front and the back of the mounting seat.

Rubber pads are arranged in the first anchor ear and the second anchor ear.

The utility model discloses a large-scale oil cylinder lower end cover dismounting platform, which has the following technical effects: the first anchor ear and the second anchor ear can be adjusted to proper positions by arranging the worm gear screw lifting mechanism and the ball screw mechanism, so that the lower end cover is fixed; the movable bracket is utilized to drive the lower end cover to move, so that the lower end cover can be separated from the piston rod; compared with hoisting through a crane, the device improves the operation efficiency and the safety, and reduces the overhaul cost of enterprises.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view showing a state of the utility model after the lower end cover is removed.

In the figure: the device comprises a mounting seat 1, a support 2, a worm screw lifting mechanism 3, a lifting seat 4, a ball screw mechanism 5, a hoop frame 6, a first hoop 7, a second hoop 8, a lower end cover 9, armrests 10, rubber pads 11, universal wheels 2.1 and foot cups 2.2.

Detailed Description

As shown in figures 1-2, the dismounting platform for the lower end cover of the large-scale oil cylinder comprises a mounting seat 1, wherein the lower end of the mounting seat 1 is mounted on a support 2, and universal wheels 2.1 with a brake locking function and foot cups 2.2 with a threaded lifting function are mounted on the periphery of the bottom of the support 2. When moving, the foot cup 2.2 is retracted, and the universal wheel 2.1 drives the device to transfer; when the piston is dismounted, the foot cup 2.2 is rotated down and falls down to be stably supported. The center of the upper end of the installation seat 1 is provided with a worm screw lifting mechanism 3, the periphery of the installation seat 1 is provided with a guide rod, the lifting seat 4 can be driven to move up and down through the worm screw lifting mechanism 3, and the guide rod is in clearance fit with a through hole of the lifting seat 4 to guide the lifting seat 4. A ball screw mechanism 5 is horizontally arranged on the lifting seat 4, a ball nut of the ball screw mechanism 5 is fixedly connected with the hoop frame 6, and the hoop frame 6 can be driven to move back and forth through the ball screw mechanism 5. The first anchor ear 7 and the second anchor ear 8 are arranged on the anchor ear frame 6, the first anchor ear 7 and the second anchor ear 8 are one by one and one small and are respectively matched with the lower end cover 9 in size, and the lower end cover 9 can be fixed in the disassembly and assembly process.

Armrests 10 are arranged in front of and behind the mounting seat 1. The armrest 10 facilitates manual pushing movement.

In the device, the worm gear screw lifting mechanism 3 and the ball screw mechanism 5 are all in the prior art, and can be manually operated by a wheel disc or driven by a motor.

Rubber pads 11 are arranged in the first hoop 7 and the second hoop 8. The rubber pad 11 can prevent the anchor ear from generating friction with the lower end cover body and damage the surface of the lower end cover.

Working process and principle: the device is moved to the right lower part of the lower end cover 9 through the armrest 10, a plurality of groups of universal wheels 2.1 are locked, a plurality of groups of foot cups 2.2 are regulated, the stress of each foot cup 2.2 is uniform, the wheel discs of the worm wheel screw lifting mechanism 3 and the ball screw mechanism 5 are finely adjusted until the lower ends of the first hoop 7 and the second hoop 8 support the half hoop to completely support the lower end cover 9, the upper end semicircular hoop is installed and connected with a bolt, the lower end cover 9 is fixed, the bolt between the lower end cover 9 and a cylinder barrel is removed at the moment, after the connecting bolt is completely removed, the foot cups 2.2 are regulated, the universal wheels 2.1 are unlocked, the device is moved, and the lower end cover 9 and a piston rod are completely separated, so that the removal is completed.

Claims (4)

1. The utility model provides a large-scale hydro-cylinder lower extreme cover dismouting platform which characterized in that: the lifting device comprises a mounting seat (1), wherein the lower end of the mounting seat (1) is mounted on a bracket (2), a worm gear screw lifting mechanism (3) is mounted at the upper end of the mounting seat (1), the worm gear screw lifting mechanism (3) drives a lifting seat (4) to move up and down, a ball screw mechanism (5) is mounted on the lifting seat (4), and the ball screw mechanism (5) drives a hoop frame (6) to move back and forth; the hoop frame (6) is provided with a first hoop (7) and a second hoop (8), and the first hoop (7) and the second hoop (8) are fixed on the lower end cover (9).

2. The large-scale hydro-cylinder lower extreme cover dismouting platform of claim 1, wherein: the lower end of the bracket (2) is provided with a universal wheel (2.1) and a foot cup (2.2); the foot cup (2.2) is connected with the supporting leg of the bracket (2) through a screw rod in a threaded manner and is adjusted in an up-down lifting manner.

3. The large-scale hydro-cylinder lower extreme cover dismouting platform of claim 1, wherein: armrests (10) are arranged at the front and the back of the mounting seat (1).

4. The large-scale hydro-cylinder lower extreme cover dismouting platform of claim 1, wherein: rubber pads (11) are arranged in the first anchor ear (7) and the second anchor ear (8).