Tool for disassembling and assembling screen basket and scraper of horizontal centrifugal machine

Abstract

The utility model relates to a horizontal centrifuge sieve basket and scraper dismounting tool, which comprises a core shaft capable of being connected with the output end of a centrifuge differential box, and is characterized by further comprising a sieve basket dismounting assembly capable of being connected with a sieve basket, a scraper dismounting assembly capable of being connected with a scraper, and a support frame which is used for supporting the core shaft and is adjustable in height, the mandrel is connected between the supporting frame and the output end of the centrifugal machine differential box, and the screen basket dismounting and mounting assembly and the scraper dismounting and mounting assembly are both arranged on the mandrel in a transition fit and sleeving mode and form a rolling friction pair with the mandrel. The gravity center of the sieve basket or the scraper is stable after the sieve basket or the scraper is combined with the tool, the positioning stability of the sieve basket or the scraper in the moving process is high, the shaking and clamping phenomena are avoided, quick-wear parts are convenient and labor-saving to disassemble and assemble, the labor intensity in the disassembling and assembling process of the quick-wear parts is reduced, the safety coefficient of disassembling and assembling of the quick-wear parts is improved, and normal use and maintenance of equipment are guaranteed.

Description

Technical Field

[0001] The utility model relates to a disassembly and assembly tool for a screen basket and a scraper of a horizontal centrifuge, belonging to the technical field of horizontal centrifuges. Background Art

[0002] Horizontal scraper coal slime centrifuges are increasingly popular among design institutes and users for their high throughput and compact footprint in the coal slime dewatering process of the washing industry. However, due to the equipment's unique horizontal structure, the removal and installation of its consumable scrapers and screen baskets require specialized fixtures to ensure proper maintenance. These fixtures typically consist of a mandrel and a connecting flange. The flange connects to the consumable parts and allows them to be moved in and out of the centrifuge through the flange and mandrel. The mandrel's outer diameter and the flange's inner bore are assembled using a steel sleeve, resulting in a large contact gap and either line or point contact. This poor fixture positioning accuracy makes installation difficult during assembly and maintenance. Furthermore, the relative movement of the flange and mandrel results in sliding friction. Furthermore, due to eccentricity and the resulting gap at the contact point, the center of gravity of the consumable parts attached to the fixture is unstable, making it difficult to move the consumable parts onto and off the mandrel, leading to wobbling and jamming. This creates high maintenance workload and a low safety margin. In order to ensure the normal use and maintenance of the equipment, it is necessary to improve the special tooling for disassembly and installation of the wearing parts screen basket and scraper. Utility Model Content

[0003] The utility model provides a disassembly and assembly tool for the screen basket and scraper of a horizontal centrifuge, which ensures that the center of gravity of the screen basket or scraper is stable after being combined with the tool, so that the positioning stability of the screen basket or scraper is high during movement, and avoids shaking and jamming. It makes the disassembly and assembly of wearing parts convenient and labor-saving, reduces the labor intensity during the disassembly and assembly of wearing parts, improves the safety factor of the disassembly and assembly of wearing parts, and ensures the normal use and maintenance of the equipment.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The horizontal centrifuge screen basket and scraper disassembly and assembly tool includes a core shaft that can be connected to the output end of the centrifuge differential case. It is characterized in that it also includes a screen basket disassembly and assembly assembly that can be connected to the screen basket, a scraper disassembly and assembly assembly that can be connected to the scraper, and a support frame that supports the core shaft and can adjust the height. The core shaft is connected between the support frame and the output end of the centrifuge differential case. The screen basket disassembly and assembly assembly and the scraper disassembly and assembly assembly can both be transitionally fitted on the core shaft and form a rolling friction pair with the core shaft.

[0006] Preferably, one end of the core shaft is provided with a connecting sleeve that can be connected to the top of the support frame, and the other end is integrally formed with an end screw that can be threadedly connected to the output end of the centrifuge differential box. The support frame is placed outside the centrifuge, the connecting sleeve is connected to the top of the support frame, and the end screw is connected to the output end of the centrifuge differential box.

[0007] Preferably, the screen basket disassembly and assembly assembly includes a ball sleeve that can be transitionally fitted on the core shaft and form a rolling friction pair with the core shaft, a connecting arm connected to the outer periphery of the ball sleeve and connectable to the screen basket, and a connecting rib connected between the ball sleeve and the connecting arm.

[0008] Preferably, the scraper disassembly and assembly assembly includes a ball sleeve 2 that can be transitionally fitted on the core shaft and form a rolling friction pair with the core shaft, a flange coaxially connected to the scraper, and a connecting rib 2 that connects the ball sleeve 2 and the flange.

[0009] Preferably, the support frame includes a base and a retractable support rod fixed to the base, and the top of the support rod extends into the connecting sleeve.

[0010] The beneficial effects of the utility model are:

[0011] The utility model relates to a horizontal centrifuge screen basket and scraper disassembly and assembly tool. When the screen basket is disassembled and assembled, the screen basket disassembly and assembly assembly cooperates with the core shaft. When the scraper is disassembled and assembled, the scraper disassembly and assembly assembly cooperates with the core shaft. The screen basket disassembly and assembly assembly or the scraper disassembly and assembly assembly is sleeved on the core shaft. The core shaft is connected between the output end of the centrifuge differential case and the support frame. The height of the support frame is adjusted to adjust the core shaft to a horizontal setting. The screen basket disassembly and assembly assembly is connected to the screen basket or the scraper disassembly and assembly assembly is connected to the scraper. The screen basket or scraper is moved out of the centrifuge during disassembly and is moved into the centrifuge during installation, thereby forming radial support and guide for the screen basket or scraper. The sieve basket or scraper disassembly assembly and the core shaft are in transition fit with each other, which is easy to assemble into place and can form a surface contact guide fit to ensure that the center of gravity of the sieve basket or scraper is stable after being combined with the tooling, so that the positioning stability of the sieve basket or scraper is high during the movement. A rolling friction pair is formed between the sieve basket or scraper disassembly assembly and the core shaft, which reduces the friction resistance during the movement, so that the sieve basket and scraper move smoothly along the core shaft, avoiding shaking and jamming, making the disassembly and assembly of wearing parts convenient and labor-saving, reducing the labor intensity during the disassembly and assembly of wearing parts, improving the safety factor of the disassembly and assembly of wearing parts, and ensuring the normal use and maintenance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the connection between the screen basket and scraper disassembly and assembly tool of the horizontal centrifuge of the present invention and the centrifuge.

[0013] Figure 2 This is a schematic diagram of the assembly of the horizontal centrifuge screen basket, scraper disassembly and assembly tool and centrifuge when disassembling and assembling the screen basket.

[0014] Figure 3 This is a schematic diagram of the assembly of the horizontal centrifuge screen basket, scraper disassembly and assembly tooling, and the centrifuge when disassembling and assembling the scraper.

[0015] Figure 4Schematic diagram of the screen basket disassembly and assembly.

[0016] Figure 5 Schematic diagram of scraper disassembly and assembly. DETAILED DESCRIPTION

[0017] The following combination Figures 1 to 5 The embodiments of the present utility model are described in detail.

[0018] The horizontal centrifuge screen basket and scraper disassembly and assembly tool includes a core shaft 1 that can be connected to the output end 300 of the centrifuge differential case, and is characterized in that it also includes a screen basket disassembly and assembly component 2 that can be connected to the screen basket 100, a scraper disassembly and assembly component 3 that can be connected to the scraper 200, and a support frame 4 that supports the core shaft 1 and can adjust the height. The core shaft 1 is connected between the support frame 4 and the output end 300 of the centrifuge differential case. The screen basket disassembly and assembly component 2 and the scraper disassembly and assembly component 3 can both be transitionally fitted on the core shaft 1 and form a rolling friction pair with the core shaft.

[0019] The horizontal centrifuge screen basket and scraper disassembly and assembly tool described above uses the screen basket disassembly and assembly assembly 2 to cooperate with the core shaft 1 when disassembling the screen basket, and uses the scraper disassembly and assembly assembly 3 to cooperate with the core shaft 1 when disassembling the scraper. The screen basket disassembly and assembly assembly 2 or the scraper disassembly and assembly assembly 3 is sleeved on the core shaft, and the core shaft 1 is connected between the output end 300 of the centrifuge differential box and the support frame 4. The height of the support frame 4 is adjusted to adjust the core shaft 1 to a horizontal setting. The screen basket disassembly and assembly assembly 2 is connected to the screen basket 100 or the scraper disassembly and assembly assembly 3 is connected to the scraper 200. When disassembling, the screen basket or scraper is driven out of the centrifuge, and when installing, the screen basket or scraper is driven to move into the centrifuge to form a screen basket or scraper. Radial support and guiding movement, the screen basket disassembly and assembly component 2 or the scraper disassembly and assembly component 3 transitions with the core shaft, is easy to assemble in place, and can form a surface contact guiding fit, ensuring that the center of gravity of the screen basket or scraper is stable after being combined with the tooling, so that the positioning stability of the screen basket or scraper is high during the movement, and a rolling friction pair is formed between the screen basket disassembly and assembly component 2 or the scraper disassembly and assembly component 3 and the core shaft 1, which reduces the friction resistance during the movement, so that the screen basket and scraper move smoothly along the core shaft, avoiding shaking and jamming, making the disassembly and assembly of wearing parts convenient and labor-saving, reducing the labor intensity during the disassembly and assembly of wearing parts, improving the safety factor of the disassembly and assembly of wearing parts, and ensuring the normal use and maintenance of the equipment.

[0020] The core shaft 1 is provided with a connecting sleeve 11 at one end that can be connected to the top of the support frame, and an integrally formed end screw 12 at the other end that can be threadedly connected to the output end 300 of the centrifuge differential case. The support frame 4 is placed outside the centrifuge, the connecting sleeve 11 is connected to the top of the support frame 4, and the end screw 12 is connected to the output end 300 of the centrifuge differential case. When connecting the core shaft 1, the end screw 12 is first connected to the output end 300 of the centrifuge differential case, and then the connecting sleeve 11 is connected to the support frame 4. The height of the support frame 4 is then adjusted, and the core shaft 1 is adjusted to a horizontal setting. The height adjustment of the support frame 4 can adapt to the disassembly and assembly of the screen basket and scraper on centrifuges of different horizontal heights.

[0021] Among them, the screen basket disassembly and assembly component 2 includes a ball sleeve 21 that can be transitionally fitted on the core shaft 1 and form a rolling friction pair with the core shaft, a connecting arm 22 connected to the outer periphery of the ball sleeve 21 and can be connected to the screen basket 100, and a connecting rib 23 connected between the ball sleeve 21 and the connecting arm 22. The rotatable balls are evenly distributed on the inner wall of the ball sleeve 21. The ball sleeve 21 is sleeved on the core shaft 1. The balls on its inner wall form a rolling friction pair with the core shaft. The ball sleeve 21 and the core shaft 1 are transitionally matched, and reliable radial support and axial guidance are formed between the two. The balls on the inner wall of the ball sleeve 21 move along the core shaft and roll on the core shaft 1. The friction is small, which can avoid shaking and jamming. Moreover, the ball sleeve 21 can rotate around the core shaft 1 to make the connecting arm 22 quickly align with the matching connecting hole on the screen basket, and after the screen basket is connected to the connecting arm 22, it can drive the screen basket to rotate on the core shaft 1. When installing the screen basket, the screen basket can be quickly rotated to the installation position to align with the mounting hole on the centrifuge, thereby improving the convenience of disassembly and assembly of the screen basket and reducing labor intensity.

[0022] Among them, the scraper disassembly and assembly component 3 includes a ball sleeve 31 that can be transitionally fitted on the core shaft 1 and form a rolling friction pair with the core shaft 1, a flange 32 coaxially connected to the scraper 200, and a connecting rib 33 that connects the ball sleeve 31 and the flange 32. The rotatable balls are evenly distributed on the inner wall of the ball sleeve 31. The ball sleeve 31 is sleeved on the core shaft 1. The balls on its inner wall form a rolling friction pair with the core shaft. The ball sleeve 31 and the core shaft 1 are transitionally matched, and reliable radial support and axial guidance are formed between the two. The ball sleeve 31 moves along the core shaft 1, and the balls on its inner wall roll on the core shaft 1. The friction is small, which can avoid shaking and jamming. In addition, the ball sleeve 31 can rotate around the core shaft 1 to quickly align the flange 32 with the matching connecting hole on the scraper, and after the scraper is connected to the flange 32, it can drive the scraper to rotate on the core shaft 1. When installing the scraper, the scraper can be quickly rotated to the installation position and aligned with the mounting hole on the centrifuge, thereby improving the convenience of disassembly and assembly of the scraper and reducing labor intensity.

[0023] The support frame 4 includes a base 41 and a retractable support rod 42 fixed to the base 41, with the top of the support rod 42 extending into the connecting sleeve 11. The base 41 can be fixed to the ground, and the support rod 42 can be retracted to adjust the height of the support frame 4. The support rod 42 is easy to connect to the connecting sleeve 11, allowing the support frame 4 to be quickly connected to the core shaft 1 and easy to disassemble.

[0024] The above is a complete description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the embodiments described are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A horizontal centrifuge screen basket and scraper disassembly and assembly tool, including a core shaft that can be connected to the output end of the centrifuge differential box, characterized by: The centrifuge also includes a sieve basket disassembly assembly that can be connected to the sieve basket, a scraper disassembly assembly that can be connected to the scraper, and a support frame that supports the core shaft and can be adjusted in height. The core shaft is connected between the support frame and the output end of the centrifuge differential case. The sieve basket disassembly assembly and the scraper disassembly assembly can be transitionally fitted on the core shaft to form a rolling friction pair between the core shaft. The screen basket disassembly and assembly assembly includes a ball sleeve that can be transitionally fitted on the core shaft and form a rolling friction pair between the core shaft, a connecting arm connected to the outer periphery of the ball sleeve and connected to the screen basket, and a connecting rib connected between the ball sleeve and the connecting arm. The scraper assembly and disassembly component includes a ball sleeve that can be transitionally fitted on the core shaft and forms a rolling friction pair with the core shaft, a flange coaxially connected to the scraper, and a connecting rib that connects the ball sleeve and the flange.

2. The horizontal centrifuge screen basket and scraper disassembly and assembly tool according to claim 1, characterized in that: One end of the core shaft is covered with a connecting sleeve that can be connected to the top of the support frame, and the other end is integrally formed with an end screw that can be threadedly connected to the output end of the centrifuge differential box. The support frame is placed outside the centrifuge, the connecting sleeve is connected to the top of the support frame, and the end screw is connected to the output end of the centrifuge differential box.

3. The horizontal centrifuge screen basket and scraper disassembly and assembly tool according to claim 2, characterized in that: The support frame comprises a base and a retractable support rod fixed on the base, and the top of the support rod extends into the connecting sleeve.

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