Rotor extractor for rotor pump

Abstract

The utility model relates to the technical field of rotors of rotor pumps, and provides a rotor extractor for a rotor pump, which comprises a rotor assembly, an extraction assembly arranged on the outer side of the rotor assembly and capable of being screwed and disassembled with the rotor assembly, and a lead screw arranged at one end, far away from the rotor assembly, of the extraction assembly and capable of being screwed and disassembled with the extraction assembly. The end, away from the taking-out assembly, of the lead screw is provided with an external assembly capable of being screwed and disassembled with the lead screw. According to the design, mechanical expansion fixing is replaced by threaded connection, a single structure is replaced by modular design, the problems that a rotor is damaged and operation is complex in comparison files are solved, meanwhile, the durability of the tool is improved through the coating technology, and the overall scheme is more efficient, safer and wide in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotor pump rotor technical field, specifically, it relates to a rotor pump rotor extractor. BACKGROUND

[0002] Rotor pump rotor is the core component of rotor pump, it rotates with the shaft, and cooperates with the pump cavity to change the working volume to realize medium delivery. The rotor has various forms, such as two-leaf rotor is suitable for conveying medium containing small and medium particles, and the particle breakage rate is low;Three-leaf rotor has large volume, and the performance index is excellent, but it has a certain breakage rate to particulate matter;Butterfly rotor has obvious advantages when conveying high viscosity and containing large particulate material. Rotor material is various, cam rotor pump rotor adopts nano composite wear-resistant rubber, is resistant to dry running, and the idling time is more than 60 minutes, and the high-precision gap cooperation between the rotor and the shell has strong self-suction force and high lifting force. Different rotor forms and materials can meet the needs of different working conditions, so that the rotor pump can deliver various viscous or particulate media, and is widely applied in chemical industry, food industry, pharmaceutical industry and the like.

[0003] Through the search, the announcement number CN207447327U discloses a rotor extraction tool, solves the problem that the existing rotor is inconvenient to take out from the mold core, which comprises an outer pipe, an inner rod and a hammer sleeve;The upper end of the outer pipe has a force bar perpendicular to the outer pipe, and the lower end is connected with an expansion sleeve, the expansion sleeve has a plurality of uniformly arranged fixing pieces;The inner rod is arranged in the outer pipe and is arranged in threaded cooperation with the outer pipe, the upper end of the inner rod is connected with a handle rod through the upper end of the outer pipe, the lower end of the inner rod is connected with an extrusion block through the lower end of the outer pipe, the extrusion block is located in the expansion sleeve, and the extrusion block can push the fixing piece to deform outward after moving downward;The hammer sleeve is sleeved on the outer pipe and can move on the outer pipe, so that the rotor can be conveniently taken out from the mold core, and the rotor will not be damaged.

[0004] The above-mentioned rotor extraction tool has the following problems:

[0005] 1. Complex structure and operation dependent on knocking

[0006] The comparative file adopts the mechanical linkage design of expansion sleeve, fixing piece and hammer sleeve, and needs to generate impact force by knocking the hammer sleeve to take out the rotor. This way is inconvenient to operate, and needs a large space for knocking, which is easy to cause damage to the rotor or pump body due to uneven impact force.

[0007] 2. Expansion fixation may damage the inner wall of the rotor

[0008] In the comparative file, the extrusion block pushes the fixing piece to expand to clamp the rotor, if the rotor material is soft (such as rubber coating), the expansion force may cause the inner wall to deform or scratch. UTILITY MODEL CONTENTS

[0009] The utility model provides a rotor extractor for rotor pump, has solved the problem that prior art structure is complex and the operation depends on knocking and expansion fixed possibly damage rotor inner wall.

[0010] The technical scheme of the utility model is as follows: a rotor extractor for rotor pump, including rotor assembly, the rotor assembly outside is provided with the extractor assembly that can be with rotor assembly screwing dismounting, the extractor assembly is provided with the lead screw that can and extractor assembly screwing dismounting at the end away from rotor assembly, the lead screw is provided with the external component that can and lead screw screwing dismounting at the end away from extractor assembly.

[0011] Preferably, the rotor assembly includes a rotor body, and the rotor assembly further includes a first threaded groove, which is formed in the side surface of the rotor body.

[0012] Preferably, the extractor assembly includes an extractor column, and the extractor assembly further includes a first external thread, which is fixedly connected to one end of the extractor column and matches the first threaded groove.

[0013] Preferably, the extractor assembly further includes a second threaded groove, which is formed in the end of the extractor column away from the first external thread.

[0014] Preferably, the lead screw is additionally provided with a rhombic hardening coating on the surface, and the lead screw matches the second threaded groove.

[0015] Preferably, the external component includes an external sleeve, and the surface of the external sleeve is processed with a protective coating.

[0016] Preferably, the external component further includes a third threaded groove, which is formed in the inner side of the external sleeve.

[0017] Preferably, the third threaded groove matches the lead screw in size.

[0018] The utility model has the advantages of:

[0019] 1. Modular design improves adaptability

[0020] The rotor assembly, the extractor assembly, the lead screw and the external component of the segmented structure can be flexibly combined according to different rotor sizes or installation depths, for example, by replacing lead screws or external sleeves of different lengths to adapt to various working conditions.

[0021] 2. Coating enhances durability

[0022] The design additionally provides a rhombic hardening coating on the surface of the lead screw, and the external sleeve is provided with a protective coating, which improves wear resistance and corrosion resistance.

[0023] 3. Simplify the operation process

[0024] The design only needs three steps of tightening the assembly and then pulling, while the compared document needs to adjust the inner rod, knock the hammer sleeve and other steps, and the operation complexity is higher. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0026] Figure 1 It is an assembly diagram of the whole device of the utility model;

[0027] Figure 2 It is a split diagram of the whole device of the utility model;

[0028] Figure 3 It is a rotor assembly diagram of the utility model;

[0029] Figure 4 It is a taking-out assembly diagram of the utility model;

[0030] Figure 5 It is an external connection assembly diagram of the utility model;

[0031] In the figure: 1, rotor assembly; 11, rotor body; 12, first threaded groove; 2, taking-out assembly; 21, taking-out column; 22, first external thread; 23, second threaded groove; 3, lead screw; 4, external connection assembly; 41, external connection sleeve; 42, third threaded groove. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0033] Please refer to Figure 1 and Figure 2 and Figure 3 and Figure 4 The utility model provides a kind of technical scheme: a rotor extractor for rotor pump, including rotor assembly 1, rotor assembly 1 outer side is provided with the taking-out assembly 2 that can be disassembled with rotor assembly 1 screwing, taking-out assembly 2 is provided with the lead screw 3 that can be disassembled with taking-out assembly 2 screwing at the end away from rotor assembly 1, lead screw 3 is provided with the external connection assembly 4 that can be disassembled with lead screw 3 screwing at the end away from taking-out assembly 2;Through the design, it solves the problems that prior art structure is complex and operation is dependent on knocking and expansion fixed and can damage rotor inner wall.

[0034] Please refer to Figure 3The rotor assembly 1 comprises a rotor body 11, and further comprises a first threaded groove 12 which is arranged on the side of the rotor body 11.

[0035] Please refer to Figure 4 The taking-out assembly 2 comprises a taking-out column 21, and further comprises a first external thread 22 which is fixedly connected to one end of the taking-out column 21 and is matched with the first threaded groove 12.

[0036] Please refer to Figure 4 The taking-out assembly 2 further comprises a second threaded groove 23 which is arranged on the end of the taking-out column 21 away from the first external thread 22.

[0037] Please refer to Figure 2 The lead screw 3 is additionally provided with a rhombic hardening coating on the surface, and is matched with the second threaded groove 23.

[0038] Please refer to Figure 5 The external connecting assembly 4 comprises an external connecting sleeve 41, and the surface of the external connecting sleeve 41 is processed by taking a protective coating.

[0039] Please refer to Figure 5 The external connecting assembly 4 further comprises a third threaded groove 42 which is arranged on the inner side of the external connecting sleeve 41.

[0040] Please refer to Figure 2 and Figure 5 The third threaded groove 42 is matched in size with the lead screw 3.

[0041] Working principle:

[0042] First, the first external thread 22 at the bottom of the taking-out column 21 is aligned with the first threaded groove 12 on the inner side of the rotor body 11 and is screwed in, at this time, the screwing and fixing work between the taking-out column 21 and the rotor body 11 is completed;

[0043] Then, the lead screw 3 is taken out, and one end of the lead screw 3 is aligned with the second threaded groove 23 on the inner side of the taking-out column 21 and is screwed in, at this time, the screwing and fixing work between the lead screw 3 and the taking-out column 21 is completed;

[0044] Finally, the external connecting sleeve 41 is taken out, and the third threaded groove 42 on the inner side of the external connecting sleeve 41 is aligned with the other end of the lead screw 3 and is screwed in, at this time, the screwing and fixing work between the external connecting sleeve 41 and the lead screw 3 is completed;

[0045] Finally, the external connecting sleeve 41 is pulled outwards by using external force or external tools, and the rotor body 11 can be taken out.

[0046] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotor extractor for a rotary pump, comprising a rotor assembly (1), characterized in that, The rotor assembly (1) is provided with a take-out assembly (2) that can be screwed and disassembled with the rotor assembly (1). The take-out assembly (2) is provided with a lead screw (3) that can be screwed and disassembled with the take-out assembly (2) at one end away from the rotor assembly (1). The lead screw (3) is provided with an external component (4) that can be screwed and disassembled with the lead screw (3) at one end away from the take-out assembly (2).

2. The rotor extractor for a rotary pump according to claim 1, characterized in that, The rotor assembly (1) includes a rotor body (11) and a first threaded groove (12) which is formed on the side of the rotor body (11).

3. A rotor extractor for a rotary pump according to claim 2, characterized in that, The extraction component (2) includes an extraction post (21) and a first external thread (22). The first external thread (22) is fixedly connected to one end of the extraction post (21) and matches the first thread groove (12).

4. A rotor extractor for a rotary pump according to claim 3, characterized in that, The extraction component (2) further includes a second threaded groove (23), which is located at the end of the extraction post (21) away from the first external thread (22).

5. A rotor extractor for a rotary pump according to claim 4, characterized in that, The lead screw (3) is provided with a diamond-shaped hardened coating, and the lead screw (3) is matched with the second thread groove (23).

6. A rotor extractor for a rotary pump according to claim 1, characterized in that, The external component (4) includes an external sleeve (41), the surface of which is treated with a protective coating.

7. A rotor extractor for a rotary pump according to claim 6, characterized in that, The external component (4) also includes a third threaded groove (42), which is located inside the external sleeve (41).

8. A rotor extractor for a rotary pump according to claim 7, characterized in that, The dimensions of the third threaded groove (42) are matched with those of the lead screw (3).

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