Two-stage nozzle disassembly tooling and disassembly method

The coordination of the positioning pin and the ejector pin of the conical needle structure solves the problem of difficult disassembly of the nozzle assembly, realizes efficient and safe disassembly of the nozzle assembly, and avoids damage.

CN111922980BActive Publication Date: 2025-09-16CHENGDU HOLY AVIATION SCI & TECH CO LTD
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Patent Information

Application Number
CN202010653553.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-07-08
Publication Date
2025-09-16
Estimated Expiration
2040-07-08

AI Technical Summary

Technical Problem

During the nozzle manufacturing and maintenance process, the nozzle assembly is difficult to disassemble and easily damaged, resulting in low disassembly efficiency.

Method used

The nozzle assembly is fixed on the support platform using a positioning pin, and a conical needle structure of the ejector pin is matched with the cylindrical groove of the nozzle assembly. The nozzle assembly is disassembled by rotating the handle.

Benefits of technology

The disassembly efficiency of the nozzle assembly is improved, damage is avoided, and the operation is simple, safe and reliable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a two-stage nozzle disassembly tool, which relates to the technical field of disassembling nozzle components and solves the technical problems of easy damage to the nozzle components and low efficiency of disassembling the nozzle components during the manufacturing and maintenance of dual-nozzle centrifugal nozzles. The two-stage nozzle disassembly tool comprises a base (1) and a support platform (6) mounted on the base (1). The two-stage nozzle disassembly tool of the present invention has a simple structure and is easy to operate. It can quickly disassemble the nozzle component (4), improves work efficiency, does not cause any damage to the nozzle component (4), has high safety and reliability, and reduces the damage rate during the disassembly process.
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Description

Technical Field

[0001] The present invention relates to the technical field of decomposing nozzle components, and in particular to a two-stage nozzle decomposing tool and a decomposing method. Background Art

[0002] In a centrifugal nozzle, oil flows through the nozzle's internal swirl chamber, generating liquid rotation. This accelerates within the nozzle chamber, ejecting a hollow, diffuse cone-shaped oil film. This film is broken up and atomized by the high velocity difference between the liquid and the surrounding air. In a dual-nozzle centrifugal nozzle, the swirl chamber, consisting of the primary and secondary nozzles, is a key component controlling the nozzle's atomization performance. During nozzle manufacturing and maintenance, achieving optimal atomization performance requires debugging and adjusting the primary and secondary nozzles, requiring multiple assembly and disassembly.

[0003] However, due to the small size of the first-stage and second-stage nozzle parts, the outer diameter of the second-stage nozzle boss has an interference fit with the inner diameter of the first-stage nozzle, and the lower end surface of the first-stage nozzle and the second-stage nozzle are tightly fitted to form a contact seal area. This makes it very difficult to disassemble the nozzle assembly, the disassembly efficiency is low, and the nozzle assembly is easily damaged during the disassembly process. Therefore, it is particularly important to design a tool that can safely and quickly disassemble the nozzle assembly. Summary of the Invention

[0004] The present invention aims to provide a two-stage nozzle disassembly tool. The nozzle assembly is mounted and fixed to a support platform using a locating pin. A conical ejector pin engages with a cylindrical recess in the nozzle assembly. This solves the technical issues of easy nozzle assembly damage and inefficient disassembly during the manufacture and maintenance of dual-nozzle centrifugal nozzles. The various technical benefits achieved by the preferred solution among the various technical solutions provided by the present invention are detailed below.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A two-stage nozzle disassembly tool is suitable for disassembling nozzle components, comprising a base and a support platform mounted on the base; wherein:

[0007] Support plates and ejectors mounted on the support plates are symmetrically provided on both sides of the support platform;

[0008] A positioning pin is also installed on the support platform;

[0009] One end of the thimble is a needle, and the other end is a rotating handle;

[0010] The support plate is provided with a threaded hole;

[0011] The needle body of the ejector pin and the matching portion of the support plate are provided with external threads corresponding to the threaded holes on the support plate.

[0012] Optionally or preferably, the base is further provided with a plurality of bolt holes for mounting the support platform and the support plate.

[0013] Optionally or preferably, a positioning pin hole is provided on the support platform.

[0014] Optionally or preferably, the support plate and the support platform are both provided with bolt holes corresponding to the base.

[0015] Optionally or preferably, the support plate is mounted on the base by bolts.

[0016] Optionally or preferably, the ejector pin is mounted on the support plate via a thread.

[0017] Optionally or preferably, the needle is a conical needle corresponding to the cylindrical groove of the nozzle assembly.

[0018] Based on the above technical solution, the following technical effects can be produced:

[0019] A two-stage nozzle disassembly tool provided in an embodiment of the present invention is suitable for disassembling a two-stage nozzle assembly during the manufacturing and maintenance of nozzles. The nozzle assembly is mounted and fixed on a support table by a locating pin, and a conical needle-shaped ejector pin cooperates with the cylindrical groove of the nozzle assembly, thereby solving the technical problems of easy damage to the nozzle assembly and low efficiency in disassembling the nozzle assembly during the manufacturing and maintenance of dual-nozzle centrifugal nozzles. The two-stage nozzle disassembly tool provided by the present invention has a simple structure, is easy to operate, improves work efficiency, does not cause any damage to the nozzle assembly, has high safety and reliability, and reduces the damage rate during the disassembly process.

[0020] The present invention also provides a two-stage nozzle disassembly method, which comprises disassembling using the above-mentioned two-stage nozzle disassembly tool, and includes the following steps:

[0021] Install the nozzle assembly on the support platform through the positioning pins;

[0022] Rotate the rotary handle on the ejector pin on one side of the support platform to move the ejector pin tip along the threaded hole of the support plate into the cylindrical groove of the nozzle assembly;

[0023] Then rotate the rotary handle on the ejector pin on the other side of the support platform;

[0024] The primary nozzle and the secondary nozzle of the nozzle assembly are subjected to upward and downward forces respectively, so that the nozzle assembly 4 is decomposed;

[0025] Rotate the rotary handle on the ejector to retract the ejector and remove the disassembled first-stage nozzle and second-stage nozzle.

[0026] The invention provides a method for using a two-stage nozzle disassembly tool, which is simple and convenient to operate, can quickly locate the nozzle assembly, does not cause any damage to the nozzle assembly during the disassembly process, and has high work efficiency and safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 Schematic diagram of the structure of the nozzle assembly;

[0030] Figure 3 Schematic diagram of the structure of the secondary nozzle (cross-sectional view);

[0031] Figure 4 for Figure 3 A partial enlarged view;

[0032] Figure 5 Schematic diagram of the structure of the secondary nozzle;

[0033] In the figure: 1. base; 2. ejector pin; 3. support plate; 4. nozzle assembly; 401. first-stage nozzle; 402. second-stage nozzle; 5. positioning pin; 6. support platform. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0035] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0036] like Figure 1-5 As shown:

[0037] The present invention provides a two-stage nozzle disassembly tool, which is suitable for disassembling a nozzle assembly 4 and includes a base 1 and a support platform 6 mounted on the base 1; wherein:

[0038] The support platform 6 is symmetrically provided with support plates 3 and ejector pins 2 mounted on the support plates 3 on both sides;

[0039] A positioning pin 5 is also installed on the support platform 6;

[0040] One end of the thimble 2 is a needle head, and the other end is a rotating handle;

[0041] The support plate 3 is provided with a threaded hole;

[0042] The matching portion between the needle body of the ejector pin 2 and the support plate 3 is provided with an external thread corresponding to the threaded hole on the support plate 3 .

[0043] As an optional embodiment, the base 1 is further provided with a plurality of bolt holes for mounting the support platform 6 and the support plate 3 .

[0044] As an optional implementation, a positioning pin hole is provided on the support platform 6 .

[0045] As an optional implementation, the support plate 3 and the support platform 6 are both provided with bolt holes corresponding to the base.

[0046] As an optional embodiment, the support plate 3 is mounted on the base 1 by bolts.

[0047] As an optional embodiment, the ejector pin 2 is mounted on the support plate 3 via threads.

[0048] As an optional embodiment, the needle is a conical needle corresponding to the cylindrical groove of the nozzle assembly 4.

[0049] As an optional embodiment, the nozzle assembly 4 includes a primary nozzle 401 and a secondary nozzle 402 .

[0050] As an optional embodiment, a cylindrical groove is formed on the secondary nozzle 401 .

[0051] The present invention also provides a two-stage nozzle disassembly method, which comprises using the above-mentioned two-stage nozzle disassembly tool to disassemble, and includes the following steps:

[0052] Install the nozzle assembly 4 on the support platform 6 through the positioning pin 5;

[0053] Rotate the rotary handle on the ejector pin 2 on one side of the support platform 6 to move the ejector pin 2 along the threaded hole of the support plate 3 and move the needle tip of the ejector pin 2 into the cylindrical groove of the nozzle assembly 4;

[0054] Then rotate the rotary handle on the ejector pin 2 on the other side of the support platform 6;

[0055] The primary nozzle and the secondary nozzle of the nozzle assembly 4 are subjected to upward and downward forces respectively, so that the nozzle assembly 4 is decomposed;

[0056] Rotate the rotary handle on ejector pin 2 to retract ejector pin 2 and remove the disassembled primary and secondary nozzles.

Claims

1. A two-stage nozzle disassembly tool, suitable for disassembling a nozzle assembly (4), characterized by: It comprises a base (1) and a support platform (6) mounted on the base (1); wherein: Support plates (3) and ejector pins (2) mounted on the support plates (3) are symmetrically provided on both sides of the support platform (6); A positioning pin (5) is also installed on the support platform (6); One end of the ejector pin (2) is a needle, and the other end is a rotating handle; the needle is a conical needle corresponding to the cylindrical groove of the nozzle assembly (4); The support plate (3) is provided with a threaded hole; The matching portion between the needle body of the ejector pin (2) and the support plate (3) is provided with an external thread corresponding to the threaded hole on the support plate (3); The nozzle assembly (4) comprises a primary nozzle (401) and a secondary nozzle (402); The secondary nozzle (401) is provided with symmetrically arranged cylindrical grooves; The cylindrical groove is located between the secondary nozzle (401) and the primary nozzle (401); The ejector pin (2) is inserted into the cylindrical groove provided on the secondary nozzle (401) to achieve decomposition; The disassembly method of the two-stage nozzle disassembly tool comprises the following steps: Mounting the nozzle assembly (4) on the support platform (6) via the positioning pin (5); The rotating handle on the ejector pin (2) on one side of the rotating support platform (6) moves the ejector pin (2) along the threaded hole of the supporting plate (3) to move the needle tip of the ejector pin (2) into the cylindrical groove of the nozzle assembly (4); Then, the rotary handle on the ejector pin (2) on the other side of the support platform (6) is rotated to move the needle tip into the cylindrical groove of the nozzle assembly (4); The nozzle assembly (4) is rotated simultaneously so that the primary nozzle and the secondary nozzle are subjected to upward and downward forces respectively, thereby separating the nozzle assembly (4); Rotate the rotary handle on the ejector pin (2) to retract the ejector pin (2) and remove the disassembled primary and secondary nozzles.

2. The two-stage nozzle disassembly tool according to claim 1, characterized in that: The base (1) is also provided with a plurality of bolt holes for mounting the support platform (6) and the support plate (3).

3. The two-stage nozzle disassembly tool according to claim 1, characterized in that: A positioning pin hole is provided on the support platform (6).

4. The two-stage nozzle disassembly tool according to claim 1, characterized in that: The support plate (3) and the support platform (6) are both provided with bolt holes corresponding to the base.

5. The two-stage nozzle disassembly tool according to claim 1, characterized in that: The support plate (3) is mounted on the base (1) via bolts.

6. The two-stage nozzle disassembly tool according to claim 1, characterized in that: The ejector pin (2) is mounted on the support plate (3) via threads.

Citation Information

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