Pump body disassembling tool structure

Abstract

The utility model provides a pump body disassembling tool structure, and relates to the technical field of pumps. The pump body disassembling tool structure is arranged between a pump body and a stator and comprises a screw rod and a top piece, a threaded hole is formed in the pump body, a penetrating hole is formed in the stator, the screw rod is used for penetrating through the penetrating hole and the threaded hole, the first end of the top piece is used for being arranged in a gap between the pump body and the stator and being in threaded connection with the screw rod, and the second end of the top piece extends out of the gap. The first end of the top piece is arranged in the gap between the pump body and the stator, the screw rod penetrates through the through hole in the stator, then is in threaded connection with the first end of the top piece and then penetrates into the threaded hole in the pump body, the second end, outside the gap, of the top piece is rotated, and the first end of the top piece can move in the axial direction of the screw rod while rotating; therefore, acting force is applied to the stator, the stator is slowly jacked up, the sealing ring is driven to be jacked up together, the pump body is separated from the sealing ring, and the purpose of disassembling the pump body can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pumps, in particular to a pump body disassembly tooling structure. Background Art

[0002] High temperature and high pressure canned motor pump is a kind of pump used to transport high temperature and high pressure media, usually used in chemical, petroleum, electric power and other industrial fields. The design and material selection of this pump need to be able to adapt to extreme working conditions to ensure that the pump can operate safely and stably in high temperature and high pressure environment.

[0003] The shielded electric pump has a compact structure and a small disassembly space. After the hot test, the pump body and the double-cone sealing ring are adhered. Conventional hydraulic disassembly tools cannot perform disassembly operations due to the limited space of the product structure. Using a crowbar for disassembly will bump and damage the surface of the pump body, stator and other components, and there is even a problem of being unable to disassemble when the fit is tight. Utility Model Content

[0004] In order to solve the above-mentioned problems at least to a certain extent, the utility model provides a pump body disassembly tooling structure, which is used to be arranged between the pump body and the stator, and is characterized in that it includes a screw and a top plate, the pump body is provided with a threaded hole, the stator is provided with a through hole, the screw is used to pass through the through hole and the threaded hole and to be axially limited in the threaded hole, the first end of the top plate is used to be arranged in the gap between the pump body and the stator and to be threadedly connected to the screw, and the second end of the top plate extends out of the gap.

[0005] Optionally, the screw rod comprises an external thread segment, a portion of the external thread segment is within the threaded hole, and another portion of the external thread segment is used to pass through the gap and extend into the through hole.

[0006] Optionally, the screw rod further includes a second cylindrical section, the second cylindrical section is connected to the external thread section, and the second cylindrical section is used for sliding contact with the through hole.

[0007] Optionally, the screw rod further includes a first cylindrical section, wherein the first cylindrical section is connected to an end of the external thread section away from the second cylindrical section.

[0008] Optionally, the first end of the top plate is a circular ring segment, the inner ring surface of the circular ring segment is provided with an internal thread, and the internal thread is used for threaded connection with the external thread segment.

[0009] Optionally, the second end of the top sheet is a handle segment, and the handle segment is used to connect with the circular ring segment.

[0010] Optionally, the handle section is configured as a cylindrical structure.

[0011] Optionally, the axis of the handle segment is perpendicular to the axis of the circular ring segment.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] After the pump body and the stator are installed, the first end of the top sheet is arranged in the gap between the pump body and the stator. After the screw passes through the through hole on the stator, the first end of the top sheet is first threadedly connected and then inserted into the threaded hole on the pump body. By rotating the second end of the top sheet outside the gap, the first end of the top sheet can rotate and move along the axial direction of the screw, thereby applying a force to the stator, so that the stator is slowly lifted up, thereby driving the sealing ring to be lifted up together, and then the pump body and the sealing ring are separated to achieve the purpose of disassembling the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of the pump body disassembly tooling structure of the utility model embodiment;

[0015] Figure 2 This is a schematic diagram of the structure of the screw in the pump body disassembly tooling structure of the embodiment of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the top plate in the pump body disassembly tooling structure of the embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 1. Screw; 11. First cylindrical section; 12. External thread section; 13. Second cylindrical section; 14. Twisting section; 2. Top plate; 21. Handle section; 22. Ring section; 23. Internal thread; 100. Pump body; 110. Threaded hole; 200. Stator; 210. Perforation; 300. Sealing ring; 400. Gap. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0022] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0023] The Z axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the up, and the negative direction of the Z axis represents the down; the X axis in the accompanying drawings represents the horizontal direction, and is designated as the left and right positions, and the positive direction of the X axis represents the left side, and the negative direction of the X axis represents the right side. It should also be noted that the aforementioned Z axis and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the utility model provides a pump body disassembly tooling structure, which is used to be arranged between the pump body 100 and the stator 200, and is characterized in that it includes a screw 1 and a top plate 2, a threaded hole 110 is provided on the pump body 100, and a through hole 210 is provided on the stator 200, the screw 1 is used to pass through the through hole 210 and the threaded hole 110 and be axially limited in the threaded hole 110, the first end of the top plate 2 is used to be arranged in the gap 400 between the pump body 100 and the stator 200 and is used to be threadedly connected to the screw 1, and the second end of the top plate 2 extends out of the gap 400.

[0025] Specifically, the threaded hole 110 is provided on the end face of the pump body 100, and the extension direction of the threaded hole 110 is parallel to the axial direction of the pump body 100. The through hole 210 passes through both ends of the stator 200. When the pump body 100 and the stator 200 are installed, the threaded hole 110 and the through hole 210 are coaxially arranged. The pump body 100 can be the pump body of a shielded electric pump, and the stator 200 can also be other connectors, such as a motor or other drive device. Under high temperature and high pressure environment, these connectors may also have the problem of adhesion with the pump body 100. The sealing ring 300 can be a double cone sealing ring, so that the pump body 100 and the stator 200 of the shielded electric pump have good sealing. The top sheet 2 is a thin-walled sheet structure, and an internal threaded through hole can be provided at the first end of the top sheet 2, and the internal threaded through hole is used for threaded connection with the screw 1.

[0026] In this embodiment, after the pump body 100 and the stator 200 are installed, the first end of the top sheet 2 is arranged in the gap 400 between the pump body 100 and the stator 200, and after the screw 1 passes through the through hole 210 on the stator 200, it is first threadedly connected to the first end of the top sheet 2, and then inserted into the threaded hole 110 on the pump body 100. By rotating the second end of the top sheet 2 outside the gap 400, the first end of the top sheet 2 can rotate and move along the axial direction of the screw 1, thereby applying a force to the stator 200, so that the stator 200 is slowly lifted up, thereby driving the sealing ring 300 to be lifted up together, and then the pump body 100 and the sealing ring 300 are separated to achieve the purpose of disassembling the pump body 100.

[0027] It should be noted that the pump body disassembly tooling structure can be as follows Figure 1 As shown, two groups are provided, which are symmetrically arranged between the pump body 100 and the stator 200, that is, the second ends of the top plates 2 in the two groups of pump body disassembly tooling structures are arranged one on the left and one on the right along the X-axis, and the angle between the two groups of pump body disassembly tooling structures is 180°. By simultaneously rotating the two symmetrically placed top plates 2, the stator 200 of the shielded electric pump drives the double-cone sealing ring to be slowly lifted up in a state where there is no deflection in the radial space position, so that the pump body 100 is separated from the double-cone sealing ring to achieve the purpose of disassembling the pump body 100. The pump body disassembly tooling structure can also be provided with one group. Although the effects of the above two groups cannot be achieved, the stator 200 can still be lifted up from one side, which is suitable for the situation where the pump body 100 and the sealing ring 300 are not seriously adhered. When the pump body 100 and the sealing ring 300 are seriously adhered, four pump body disassembly tooling structures can also be provided. The four pump body disassembly tooling structures are arranged circumferentially along the pump body 100, and the angle between the two pump body disassembly tooling structures is 90°.

[0028] like Figure 1 and Figure 2 As shown, optionally, a portion of the external thread segment 12 is in the threaded hole 110 , and another portion of the external thread segment 12 is used to pass through the gap 400 and extend into the through hole 210 .

[0029] In this embodiment, when the screw 1 is installed in the pump body 100, a large part of the thread of the external thread segment 12 is in the threaded hole 110, and another small part of the external thread segment 12 extends vertically upward through the gap 400 to the through hole 210. That is to say, there is still a small section of the external thread segment 12 on the screw 1 in the through hole 210. In this way, when the first end of the top plate 2 is rotated, the rotation time of one end of the top plate 2 and the external thread segment 12 can be extended as much as possible, so that the pump body 100 and the stator 200 can be fully separated.

[0030] like Figure 1 and Figure 2 As shown, optionally, the screw rod 1 further includes a second cylindrical section 13 , the second cylindrical section 13 is connected to the external thread section 12 , and the second cylindrical section 13 is used for sliding contact with the through hole 210 .

[0031] In this embodiment, the second cylindrical section 13 is slidably connected to the through hole 210. In this way, when the top plate 2 lifts the stator 200, the through hole 210 will move along the axial direction of the second cylindrical section 13 in a direction away from the pump body 100. In other words, the second cylindrical section 13 slides in cooperation with the through hole 210 to limit and guide the top plate 2, thereby preventing the stator 200 from being displaced in the radial direction of the sealing ring 300, thereby preventing the stator 200 from moving ineffectively and improving the disassembly efficiency of the stator 200.

[0032] like Figure 1 and Figure 2 As shown, the screw rod 1 further includes a screwing section 14 , which is connected to an end of the second cylindrical section 13 away from the external thread section 12 .

[0033] In this embodiment, when the top sheet 2 and the screw 1 rotate relative to each other, a reverse rotational force is applied to the screwing section 14 by a wrench tool, so that the annular section 22 in the top sheet 2 can slowly rotate and slowly rise along the axial direction of the screw 1.

[0034] like Figure 1 and Figure 2 As shown, optionally, the screw rod 1 further includes a first cylindrical section 11 , and the first cylindrical section 11 is connected to an end of the external thread section 12 away from the second cylindrical section 13 .

[0035] In this embodiment, the first cylindrical section 11 is provided to facilitate the rotation and installation of the screw 1. When the screw 1 is installed into the threaded hole 110 on the pump body 100, the first cylindrical section 11 will first be inserted into the bottom hole in the threaded hole 110 to play an axial positioning role.

[0036] like Figure 1 and Figure 3As shown, optionally, the first end of the top sheet 2 is a circular ring segment 22 , and the inner ring surface of the circular ring segment 22 is provided with an internal thread 23 , and the internal thread 23 is used for threaded connection with the external thread segment 12 .

[0037] Specifically, the top sheet 2 can be made of titanium alloy, stainless steel or aluminum alloy, all of which have the characteristics of corrosion resistance and wear resistance, and also have a certain toughness and are not easy to break. In this way, the top sheet 2 can be prevented from breaking when subjected to force.

[0038] In this embodiment, the annular segment 22 needs to be set as a thin-walled annular structure so that it can be stuck in the gap 400 between the pump body 100 and the stator 200. The internal thread 23 can be integrally formed on the inner ring surface of the annular segment 22. Since the internal thread 23 and the external thread segment 12 are threadedly connected, the annular segment 22 can slowly rotate while slowly rising along the axial direction of the screw 1, so that the upper surface of the annular segment 22 exerts a force on the stator 200, thereby slowly lifting the stator 200.

[0039] like Figure 3 As shown, optionally, the second end of the top sheet 2 is a handle segment 21 , and the handle segment 21 is used to connect with the circular ring segment 22 .

[0040] Specifically, the handle segment 21 can be integrally formed with the circular ring segment 22 , and the end of the handle segment 21 can also be welded to the outer circumferential surface of the circular ring segment 22 .

[0041] In this embodiment, the handle segment 21 can be rotated to drive the annular segment 22 to rotate together.

[0042] like Figure 3 As shown, optionally, the handle segment 21 is configured as a cylindrical structure, and the axis of the handle segment 21 is perpendicular to the axis of the circular ring segment 22 .

[0043] In this embodiment, by setting the handle segment 21 to a cylindrical structure, it is convenient for manual operation and comfortable to hold. The handle segment 21 with a cylindrical structure can better adapt to the hand's grip, reduce hand discomfort and fatigue, and make the operation more comfortable. The handle segment 21 with a cylindrical structure allows the applied force to be more evenly distributed on the surface of the hand, reduces local pressure, and is conducive to rotation operation. The axis of the handle segment 21 is perpendicular to the axis of the circular ring segment 22. By rotating the handle segment 21 horizontally, the first end of the top sheet 2 can rotate around the axis of the circular ring segment 22.

[0044] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A pump body disassembly tooling structure, used to be arranged between a pump body (100) and a stator (200), characterized in that: The pump body (100) comprises a screw rod (1) and a top plate (2); a threaded hole (110) is provided on the pump body (100); a through hole (210) is provided on the stator (200); the screw rod (1) is used to pass through the through hole (210) and the threaded hole (110) and to be axially limited in the threaded hole (110); a first end of the top plate (2) is used to be arranged in a gap (400) between the pump body (100) and the stator (200) and to be threadedly connected with the screw rod (1); and a second end of the top plate (2) protrudes out of the gap (400).

2. The pump body disassembly tooling structure according to claim 1, characterized in that: The screw rod (1) comprises an external thread segment (12), a portion of the external thread segment (12) is within the threaded hole (110), and another portion of the external thread segment (12) is used to pass through the gap (400) and extend into the through hole (210).

3. The pump body disassembly tooling structure according to claim 2, characterized in that: The screw rod (1) further comprises a second cylindrical section (13), wherein the second cylindrical section (13) is connected to the external thread section (12), and the second cylindrical section (13) is used for sliding contact with the through hole (210).

4. The pump body disassembly tooling structure according to claim 3, characterized in that: The screw rod (1) further comprises a screwing section (14), wherein the screwing section (14) is connected to an end of the second cylindrical section (13) away from the external thread section (12).

5. The pump body disassembly tooling structure according to claim 4, characterized in that: The screw rod (1) further comprises a first cylindrical section (11), wherein the first cylindrical section (11) is connected to an end of the external thread section (12) away from the second cylindrical section (13).

6. The pump body disassembly tooling structure according to claim 2, characterized in that: The first end of the top plate (2) is a circular ring segment (22), the inner ring surface of the circular ring segment (22) is provided with an internal thread (23), and the internal thread (23) is used for threaded connection with the external thread segment (12).

7. The pump body disassembly tooling structure according to claim 6, characterized in that: The second end of the top sheet (2) is a handle segment (21), and the handle segment (21) is used to be connected to the circular ring segment (22).

8. The pump body disassembly tooling structure according to claim 7, characterized in that: The handle section (21) is configured as a cylindrical structure.

9. The pump body disassembly tooling structure according to claim 8, characterized in that: The axis of the handle segment (21) is perpendicular to the axis of the circular ring segment (22).

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