A quick lifting fixture for the rotating roller of a slag cooler

Abstract

A quick-lifting fixture for the rotating roller of a slag cooler includes two jacks and a roller support base. The roller support base includes a downwardly recessed support arc strip, a base, and two extension arms. The support arc strip is welded and fixed to the top surface of the base. The two extension arms are welded and fixed to both sides of the base and extend in opposite directions horizontally. The top surface of the extension arms is flush with both ends of the support arc strip. The two jacks are located below the corresponding extension arms and, through piston rods cooperating with the extension arms, drive the roller support base to move up and down. This utility model has a simple structure, low processing cost, and can efficiently and stably lift the rotating roller of a slag cooler, facilitating the maintenance of the matching support rollers.

Description

Technical Field

[0001] This utility model relates to the field of equipment maintenance, and in particular to a quick lifting fixture for the rotating roller of a slag cooler. Background Technology

[0002] Fluidized bed boilers are equipped with drum-type slag coolers. The rotating drum is driven by a drive unit to rotate at low speed, causing the ash and slag inside to continuously move from the slag inlet to the low-temperature section under the action of blades and other forces. The rotating drum is supported by two sets of rollers on rails, with anti-slip rollers installed on both sides of the rails. Due to the weight of the slag cooler itself, plus the weight of the ash and slag inside, the force exerted on the bottom rollers during rotation is enormous, resulting in rapid and severe wear of the rollers. Statistics show that in a single operating cycle of maintenance, the roller wear and replacement rate for a single slag cooler exceeds 90%. If severely worn rollers are not replaced in a timely manner, it can lead to adverse consequences such as the entire drum sinking and tilting, center misalignment, excessive load on the reducer, and mechanical jamming.

[0003] Currently, replacing the support rollers requires lifting the rotating cylinder to detach it from the support rollers before replacement. This involves scaffolders, crane operators, and maintenance fitters. The entire process of replacing the support rollers in the slag cooler and restoring equipment operation takes 28 hours per person, resulting in long maintenance times and high labor costs.

[0004] Therefore, designing a tooling that can conveniently and quickly lift the rotating roller of the slag cooler is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a quick lifting fixture for the rotating rollers of a slag cooler. This fixture has a simple structure, low processing cost, and can efficiently and stably lift the rotating rollers of the slag cooler, while also facilitating the maintenance of the supporting rollers.

[0006] The technical solution to achieve the purpose of this utility model is: a quick lifting fixture for the rotating roller of a slag cooler, including two jacks and a roller support base. The roller support base includes a downwardly recessed support arc strip, a base, and two extension arms. The support arc strip is welded and fixed to the top surface of the base. The two extension arms are welded and fixed to both sides of the base and extend in opposite directions in the horizontal direction. The top surface of the extension arms is flush with the two ends of the support arc strip. The two jacks are located below the corresponding extension arms and cooperate with the extension arms through piston rods to drive the roller support base to move up and down.

[0007] The base includes a rectangular frame made of welded rectangular tubes, with a notch at the top and a reinforcing plate welded inside the rectangular frame. The middle part of the extension arm is welded to the top of the column of the rectangular frame, and the supporting arc strip is welded to the top edge of the reinforcing plate and the inner end of the extension arm.

[0008] Each of the aforementioned extension arms has a lifting lug on its top surface.

[0009] The extension arm is made of rectangular steel tube, and the shape of the inner end section of the extension arm is adapted to the shape of the supporting arc strip.

[0010] A reinforcing block is provided between the extension arm and the base column.

[0011] The above technical solution has the following beneficial effects:

[0012] 1. The rapid lifting fixture for the rotating roller of the slag cooler includes two jacks and a roller support base. The roller support base supports the rotating roller of the slag cooler, and the jacks are used to raise and lower the roller support base, achieving the purpose of rapid and efficient lifting of the rotating roller of the slag cooler. The roller support base includes a downwardly recessed support arc strip, a base, and two extension arms. The support arc strip is welded and fixed to the top surface of the base to ensure the structural strength of the support arc strip and prevent deformation of the support arc strip when lifting the rotating roller of the slag cooler, ensuring the stability of the lifting. The two extension arms are welded and fixed to both sides of the base respectively, extending in opposite directions in the horizontal direction, so that the projection of the extension arm is offset from the projection of the base, which facilitates the placement of jacks between the extension arm and the ground. The top surface of the extension arm is flush with both ends of the support arc strip, so that the support position of the rotating roller of the slag cooler does not exceed the height of the extension arm, reducing the center of gravity of the lifting fixture and ensuring the stability of the lifting process. The two jacks are located below the corresponding extension arms and cooperate with the extension arms through piston rods to drive the roller support seat to move up and down. In use, the roller support seat can be placed on the ground, below the rotating roller of the slag cooler, and the position of the jacks can be adjusted to be below the extension arms. By controlling the extension height of the jack piston rods, the roller support seat can be lifted up and then raised further until the rotating roller of the slag cooler is lifted off the support roller below, which is convenient for maintenance of the support roller. The whole lifting process is quick and efficient.

[0013] 2. The base includes a rectangular frame constructed from welded rectangular tubes. The top of this rectangular frame has a notch, and a reinforcing plate is welded inside the frame. This structure provides high structural strength and controllable weight. The middle of the extension arm is welded to the top of the column of the rectangular frame. The supporting arc strip is welded to the top edge of the reinforcing plate and the inner end of the extension arm, ensuring that the supporting arc strip is welded along a line and surface on the base, thus guaranteeing the connection stability of the supporting arc strip on the base.

[0014] 3. A reinforcing block is installed between the extension arm and the base column to ensure the connection strength between the extension arm and the base.

[0015] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the attached diagram, 1 is a jack, 2 is a roller support, 3 is a support arc strip, 4 is a base, 41 is a rectangular frame, 42 is a reinforcing plate, 5 is an extension arm, 6 is a lifting lug, and 7 is a reinforcing block. Detailed Implementation

[0018] See Figure 1 This is a specific embodiment of a quick-lifting fixture for the rotating roller of a slag cooler. The quick-lifting fixture for the rotating roller of the slag cooler includes two jacks 1 and a roller support 2. Conventional jacks can be used. The roller support 2 includes a downwardly recessed support arc 3, a base 4, and two extension arms 5. The support arc 3 is welded and fixed to the top surface of the base 4. The two extension arms 5 are welded and fixed to both sides of the base 4 and extend in opposite directions in the horizontal direction. The top surface of the extension arms 5 is flush with both ends of the support arc 3. Specifically, the base 5 includes a rectangular frame 41 made of welded rectangular tubes. The top of the rectangular frame has a notch, and a reinforcing plate 42 is welded inside the rectangular frame. The extension arms 5 are made of rectangular steel tubes, and the shape of the inner end cross section of the extension arms 5 is adapted to the shape of the support arc 3. The middle part of the extension arm is welded to the top of the column of the rectangular frame 41, and a reinforcing block 7 is provided between the extension arm 5 and the base column. The support arc 3 is welded to the top edge of the reinforcing plate 42 and the inner end of the extension arm 5 to form the roller support 2. Two jacks 1 are located below the corresponding extension arms 5 and cooperate with the extension arms 5 through piston rods to drive the roller support 2 to move up and down.

[0019] To facilitate the quick lifting and transfer of the tooling, lifting lugs 6 are provided on the top surface of the extension arm 5.

[0020] The working principle of this utility model is as follows: When it is necessary to lift the rotating roller to maintain the supporting roller of the slag cooler, the roller support seat is manually moved to the bottom of the rotating roller and placed on the ground. The extension direction of the support arc is adapted to the rotation direction of the rotating roller. Then, two jacks are placed on the ground, respectively below the corresponding extension arms. By controlling the extension height of the jack piston rod, the roller support seat is lifted and then raised to lift the rotating roller of the slag cooler until it is separated from the supporting roller below, which facilitates the maintenance of the supporting roller.

Claims

1. A quick lift tooling for a rotating drum of a slag cooler, characterized by: Includes two jacks (1) and roller support (2). The roller support (2) includes a downwardly recessed support arc (3), a base (4), and two extension arms (5). The supporting arc strip (3) is welded and fixed to the top surface of the base (4), and the two extension arms (5) are welded and fixed to both sides of the base (4) respectively, extending in opposite directions in the horizontal direction. The top surface of the extension arms (5) is flush with both ends of the supporting arc strip (3). The two jacks (1) are located below the corresponding extension arms (5) and cooperate with the extension arms (5) through the piston rod to drive the roller support seat (2) to move up and down.

2. The quick lifting tool of the rotating roller of the slag cooler according to claim 1, characterized in that: The base (4) includes a rectangular frame (41) formed by welding rectangular tubes, with a notch at the top and a reinforcing plate (42) welded inside the rectangular frame. The middle part of the extension arm (5) is welded to the top of the column of the rectangular frame (41), and the supporting arc strip (3) is welded to the top edge of the reinforcing plate (42) and the inner end of the extension arm (5).

3. The quick lifting tool of the rotating roller of the slag cooler according to claim 1, characterized in that: Each of the extension arms (5) has a lifting lug (6) on its top surface.

4. The quick lifting tool of the rotating roller of the slag cooler according to claim 1, characterized in that: The extension arm (5) is made of rectangular steel tube, and the shape of the inner end section of the extension arm (5) is adapted to the shape of the supporting arc strip (3).

5. The quick lifting tool of the rotating roller of the slag cooler according to claim 1, characterized in that: A reinforcing block (7) is provided between the extension arm (5) and the base column.

Images