CN212250616U - Pump cover dismounting device - Google Patents
Pump cover dismounting device Download PDFInfo
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- CN212250616U CN212250616U CN202020813663.6U CN202020813663U CN212250616U CN 212250616 U CN212250616 U CN 212250616U CN 202020813663 U CN202020813663 U CN 202020813663U CN 212250616 U CN212250616 U CN 212250616U
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- pump
- pump cover
- guide unit
- assembly
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Abstract
The utility model relates to a pump correlation technique field discloses a pump cover dismouting device. The pump cover is provided with a first lifting piece; the pump cover dismounting device comprises a dismounting assembly and a lifting assembly, wherein the dismounting assembly comprises a second lifting piece and a guide unit detachably connected to the pump cover, and the lifting assembly is detachably connected to the first lifting piece and the second lifting piece; the pump cover is provided with a mounting hole, and the second hoisting piece can be fixed relative to the guide unit or can reciprocate along the axial direction of the mounting hole. The pump cover has the advantages that the mounting holes can be always kept in a horizontal state when the pump cover is dismounted, when parts inside the pump body are replaced, the whole pump does not need to be moved to a special dismounting table for dismounting, dismounting efficiency of the pump cover is improved, the mounting holes in the pump cover and the pump shaft can be coaxial in the dismounting process of the pump cover, the pump cover and the pump shaft are ensured to be accurately centered, and the pump body, the pump cover, the parts inside the pump body and the sealing ring between the pump body and the pump cover are prevented from being scratched and damaged.
Description
Technical Field
The utility model relates to a technical field is correlated with to the pump, especially relates to a pump cover dismouting device.
Background
For pump cover disassembly of a large-scale radial subdivision horizontal single-stage centrifugal pump, the pump cover disassembly can be smoothly carried out only when the gravity center position of the pump cover disassembly is near a lifting point.
In the prior art, a special disassembly and assembly station (such as a pit) is usually built to accommodate a pump shaft extending out of a pump body, so that vertical disassembly and assembly of a pump cover of a large-scale radial subdivision horizontal single-stage centrifugal pump are realized. However, if the parts inside the pump body need to be replaced, the whole pump must be moved to another special disassembling and assembling station to disassemble the pump, which greatly increases the maintenance cost of users.
In addition, the pump body is large in size, the height of the pump body far exceeds the observation range of common operators, the pump shaft and the mounting holes in the pump cover cannot be accurately centered in the assembling process, and the pump body, the pump cover, the pump shaft and the like are extremely easy to rub and touch.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pump cover dismouting device can realize the dismouting of other spare parts in pump cover and the pump body on the basis that does not set up the dismouting position, aligns the mounting hole on pump shaft and the pump cover simultaneously effectively.
To achieve the purpose, the utility model adopts the following technical proposal:
a pump cover dismounting device is characterized in that a first lifting piece is arranged on a pump cover; the pump cover assembling and disassembling device comprises an assembling and disassembling assembly and a hoisting assembly, wherein the assembling and disassembling assembly comprises a second hoisting piece and a guide unit detachably connected to the pump cover, and the hoisting assembly is detachably connected to the first hoisting piece and the second hoisting piece;
the pump cover is provided with an installation hole, and the second hoisting part can be fixed relative to the guide unit or can reciprocate along the axial direction of the installation hole, so that the central axis of the installation hole is horizontal after the hoisting assembly hoists the pump cover and the hoisting assembly;
the lifting assembly is used for lifting the pump cover to a position allowing the pump cover to be mounted on or separated from the pump body, so that the mounting hole and the pump shaft are coaxial.
As a preferable technical solution of the pump cover dismounting device, the dismounting assembly further includes a counterweight unit slidably connected to the guide unit, and the second lifting member is disposed on the counterweight unit.
As a preferable technical solution of the pump cover attaching and detaching device, the guide unit penetrates the counterweight unit, and the counterweight unit is fixed with respect to the guide unit by one end of the first fastening member extending into the counterweight unit and abutting against the guide unit.
As a preferred technical solution of the pump cover dismounting device, the guide unit is provided with a first limiting part and a second limiting part, and the counterweight unit is located between the first limiting part and the second limiting part.
As a preferred technical solution of the pump cover dismounting device, the first limiting part is a limiting step arranged on the guide unit, and/or the second limiting part is a second fastening piece in threaded connection with the guide unit.
As an optimal technical scheme of the pump cover dismounting device, the counterweight unit comprises a counterweight block, and a counterweight detachably connected with the counterweight block is arranged on the counterweight block.
As a preferable technical solution of the pump cover attaching and detaching device, the weight of the counterweight is smaller than the weight of the counterweight.
As a preferable technical solution of the pump cover detaching device, the guide unit includes a connecting plate detachably connected to the pump cover, and a guide portion connected to the connecting plate, and the counterweight unit is slidably connected to the guide portion.
As an optimal technical scheme of the pump cover dismounting device, the pump cover dismounting device further comprises a dismounting handle, the dismounting handle is detachably connected to the guide unit, and the dismounting handle is used for applying external force to enable the pump cover to horizontally move along the axial direction of the mounting hole so as to be close to or far away from the pump body.
As an optimal technical scheme of the pump cover dismounting device, the dismounting handle is arranged at one end, deviating from the pump cover, of the guide unit.
The utility model has the advantages that: adopt the utility model provides a when pump cover dismouting device carries out the dismouting to the pump cover, can make the mounting hole on the pump cover remain the horizontality throughout, when needs are changed the spare part of the pump body inside, need not to move whole pump and carry out the dismouting to special dismouting bench, can realize the dismouting of pump cover, moreover, the steam generator is simple in structure, high durability and convenient use, not only improve the dismouting efficiency of pump cover, manpower installation cost has been reduced, and can make mounting hole and pump shaft on the pump cover coaxial in carrying out the dismouting in-process to the pump cover, ensure that pump cover and pump shaft are accurate centering, prevent to the pump body, the pump cover, the spare part of the pump body and the sealing washer between the pump body and the pump cover cause to wipe and bump the.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural view of a pump cover dismounting device provided by an embodiment of the present invention;
fig. 2 is a cross-sectional view of a guide unit provided in an embodiment of the present invention;
fig. 3 is a disassembly and assembly state diagram of the pump cover disassembly and assembly device provided by the embodiment of the utility model.
In the figure:
1. a first lifting member; 2. a hoisting assembly;
3. disassembling and assembling the components; 31. a second lifting element; 32. a connecting plate; 321. a first connection hole; 33. a guide portion; 331. a first limit piece; 332. a second limiting member; 333. a second threaded mounting hole; 34. a first bolt; 35. a balancing weight; 36. a counterweight; 37. a first fastener;
10. a pump cover; 101. mounting holes; 20. a pump body; 30. and a pump shaft.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
As shown in fig. 1 to 3, the present embodiment provides a pump cover attaching and detaching device, which is mainly used for attaching and detaching a pump cover 10 on a large-scale radially-split horizontal single-stage centrifugal pump. The pump cover 10 is provided with a first lifting member 1 and a mounting hole 101, in this embodiment, the first lifting member 1 is a first lifting ring, and the first lifting ring is in threaded connection with the pump cover 10 through a first lifting ring bolt. The pump cover dismounting device comprises a dismounting assembly 3 and a lifting assembly 2, wherein the dismounting assembly 3 comprises a second lifting piece 31 and a detachable guide unit connected to the pump cover 10. In this embodiment, the guiding unit includes a connecting plate 32 and a guiding portion 33, wherein the connecting plate 32 is provided with a plurality of first connecting holes 321 distributed circumferentially, the pump cover 10 is provided with preset connecting holes corresponding to the first connecting holes 321 one by one, and the first connecting holes 321 and the corresponding preset connecting holes are connected by the first bolts 34, so as to detachably connect the pump cover 10 to the guiding unit. In this embodiment, the connecting plate 32 is a steel plate with through holes, the guide portion 33 is a steel pipe, and the connecting plate 32 and the guide portion 33 are welded and fixed so that the through holes in the steel plate and the steel pipe are coaxially arranged.
The hoisting assembly 2 is detachably connected with the first hoisting member 1 and the second hoisting member 31; the pump cover 10 is provided with an installation hole 101, and the second hoisting member 31 can be fixed relative to the guide unit or can reciprocate along the axial direction of the installation hole 101, so that the central axis of the installation hole 101 is horizontal after the hoisting assembly 2 hoists the pump cover 10 and the hoisting assembly 2; the hoisting assembly 2 is used for hoisting the pump cover 10 to a position allowing the pump cover 10 to be mounted on or detached from the pump body 20, so that the mounting hole 101 and the pump shaft 30 are coaxial.
The process of installing the pump cover 10 by adopting the pump cover dismounting device is as follows:
the pump cover 10 is detachably connected to the disassembling and assembling assembly 3, the first hoisting piece 1 and the second hoisting piece 31 are hoisted simultaneously by the hoisting assembly 2, the second hoisting piece 31 moves along the axial direction of the installation hole 101, so that the central axis of the installation hole 101 is horizontal, and then the second hoisting piece 31 is fixed relative to the guide unit; the pump cover 10 is sent to a position where the pump cover 10 and the pump body 20 are allowed to be mounted by the hoisting assembly 2, and the mounting hole 101 and the pump shaft 30 are coaxial, so that the pump cover 10 is mounted to the pump body 20.
The pump cover 10 is disassembled by adopting the pump cover disassembling and assembling device as follows:
in the process of mounting the pump cover 10, marking the position of the second lifting piece 31 on the guide unit when the central axis of the mounting hole 101 is in the horizontal state, and marking the position of the second lifting piece 31 on the guide unit as a preset dismounting position; when the pump cover 10 is detached, the second lifting piece 31 is fixed at a preset detachment position on the guide unit, and the second lifting piece 31 is fixed relative to the guide unit; simultaneously hoisting the first hoisting member 1 and the second hoisting member 31 by using the hoisting assembly 2 to enable the pump cover 10 to be positioned at a position allowing the pump cover 10 to be separated from the pump body 20, enabling the mounting hole 101 to be coaxial with the pump shaft 30, and disassembling the pump cover 10; and finally, separating the pump cover 10 from the pump body 20 by using the hoisting assembly 2.
When the pump cover disassembly and assembly device provided by the embodiment is adopted to disassemble and assemble the pump cover 10, the mounting hole 101 on the pump cover 10 can be always kept in a horizontal state, when parts inside the pump body 20 need to be replaced, the whole pump does not need to be moved to a special disassembly and assembly table to be disassembled and assembled, the pump cover 10 can be disassembled and assembled, the disassembly and assembly efficiency of the pump cover 10 is improved, the mounting hole 101 on the pump cover 10 and the pump shaft 30 can be coaxial in the disassembly and assembly process of the pump cover 10, the pump cover 10 and the pump shaft 30 are ensured to be accurately centered, and the pump body 20, the pump cover 10, the parts inside the pump body 20 and the sealing ring between the pump body 20 and the pump cover 10 are prevented from being scratched and damaged.
Further, the above-mentioned assembly and disassembly unit 3 further includes a counterweight unit slidably connected to the guide unit, and specifically, the guide portion 33 penetrates through the counterweight unit and slidably connected to the counterweight unit, and the counterweight unit is fixed with respect to the guide unit by one end of the first fastening member 37 extending into the counterweight unit and abutting against the guide portion 33. Preferably, the first fastener 37 is a bolt.
The second lifting member 31 is disposed on the counterweight unit, and specifically, the second lifting member 31 is a second lifting ring, and the second lifting ring is in threaded connection with the counterweight block 35 through a second lifting bolt, so as to detachably connect the second lifting ring to the counterweight block 35.
The guiding unit is provided with a first limiting member 331 and a second limiting member 332, and the counterweight unit is located between the first limiting member 331 and the second limiting member 332. The first limiting member 331 is a limiting step disposed on the guiding portion 33, and the second limiting member 332 is a fastening member, such as a bolt, screwed with the guiding portion 33.
In other embodiments, the first limiting member 331 can also be a fastener such as a bolt; when the connecting plate 32 and the guiding portion 33 are detachable, the second limiting member 332 may also be a limiting step. It should be noted that, in order to ensure that the counterweight unit can be sleeved on the guide portion 33, only one of the first limiting member 331 and the second limiting member 332 is required to adopt a limiting step.
In this embodiment, the counterweight unit includes one, two, or more counterweight blocks 35, when at least two counterweight blocks 35 are disposed, the weights of at least two counterweight blocks 35 may be equal or unequal, and this embodiment exemplifies that two counterweight blocks 35 with equal weights are disposed.
In order to improve the accuracy of adjustment of the counterweight unit, the present embodiment is provided with a counterweight 36 detachably attached to the counterweight 35, and the weight of the counterweight 36 is smaller than that of the counterweight 35. Specifically, a plurality of first threaded mounting holes are provided on the counterweight block 35, and the counterweight 36 is threadedly connected to the first threaded mounting holes to detachably connect the counterweight 36 to the counterweight block 35. The weight of the selected balancing weights 36 and the number of the balancing weights 36 can be set according to actual requirements, and is not particularly limited herein
Further, the pump cover detaching device further comprises a detaching handle detachably connected to the guide unit, and the detaching handle is used for applying external force to enable the pump cover 10 to horizontally move along the axial direction of the mounting hole 101 so as to be close to or far away from the pump body 20. In this embodiment, one end of the guide portion 33 away from the connecting plate 32 is provided with a second threaded mounting hole 333 extending along the axial direction thereof, and one end of the detachable handle is in threaded connection with the second threaded mounting hole 333 to detachably connect the detachable handle to the guide portion 33, preferably, two detachable handles are provided, and the two detachable handles are arranged at the same end of the guide portion 33 and symmetrically arranged.
When the pump cover 10 is installed, external force is applied through the disassembling and assembling handle to enable the pump cover 10 to horizontally move along the axial direction of the installation hole 101, so that the pump cover 10 is pushed to be close to the pump body 20; when the pump cover 10 is detached, external force is applied by the detachment and attachment handle to horizontally move the pump cover 10 in the axial direction of the attachment hole 101 to pull the pump cover 10 away from the pump body 20.
The embodiment also provides a pump cover dismounting method, and the pump cover 10 is dismounted by adopting the pump cover dismounting device. The method for installing the pump cover 10 by adopting the pump cover dismounting device comprises the following steps:
s11, connecting the dismounting assembly 3 to the pump cover 10 through a guide unit;
s12, hoisting the connected pump cover 10 and the disassembly and assembly component 3 by using the hoisting component 2, and sliding the second hoisting piece 31 along the axial direction of the mounting hole 101 to enable the central axis of the mounting hole 101 to be horizontal;
s13, hoisting the pump cover 10 and the dismounting assembly 3 to a position allowing the pump cover 10 and the pump body 20 to be installed through the hoisting assembly 2;
s14, applying an external force to the detaching assembly 3 through the detaching handle, so that the pump cover 10 moves along the axial direction of the mounting hole 101 to push the pump cover 10 to approach the pump body 20, and mount the pump cover 10 on the pump body 20.
Further, before step S13 is executed, the position of the second lifting tool 31 on the guide unit is marked as a preset attaching and detaching position; when the pump cover 10 is detached, the second lifting piece 31 is fixed to a predetermined attachment/detachment position on the guide unit.
The method for disassembling the pump cover 10 by adopting the pump cover disassembling and assembling device comprises the following steps:
s21, fixing the second lifting tool 31 to a preset dismounting position on the guide unit, and fixing the second lifting tool 31 relative to the guide unit;
s22, hoisting the first hoisting piece 1 and the second hoisting piece 31 by the hoisting assembly 2 simultaneously to enable the pump cover 10 to be in a position allowing the pump cover to be separated from the pump body 20, and enabling the mounting hole 101 to be coaxial with the pump shaft 30;
s23, applying external force to the dismounting and mounting assembly 3 through the dismounting and mounting handle to enable the pump cover 10 to move along the axial direction of the mounting hole 101 so as to pull the pump cover 10 away from the pump body 20;
and S23, separating the pump cover 10 from the pump body 20 by the hoisting assembly 2.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. A pump cover dismounting device is characterized in that a first lifting piece (1) is arranged on a pump cover (10); the pump cover assembling and disassembling device is characterized by comprising an assembling and disassembling assembly (3) and a hoisting assembly (2), wherein the assembling and disassembling assembly (3) comprises a second hoisting piece (31) and a guide unit which is detachably connected to the pump cover (10), and the hoisting assembly (2) is detachably connected to the first hoisting piece (1) and the second hoisting piece (31);
the pump cover (10) is provided with an installation hole (101), and the second hoisting piece (31) can be fixed relative to the guide unit or can reciprocate along the axial direction of the installation hole (101), so that the central axis of the installation hole (101) is horizontal after the hoisting assembly (2) hoists the pump cover (10) and the hoisting assembly (2);
the lifting assembly (2) is used for lifting the pump cover (10) to a position allowing the pump cover (10) and the pump body (20) to be mounted or separated, and the mounting hole (101) and the pump shaft (30) are coaxial.
2. A pump cap attachment/detachment apparatus according to claim 1, wherein the attachment/detachment assembly (3) further includes a weight unit slidably connected to the guide unit, the second lifting member (31) being provided on the weight unit.
3. A pump cap attachment/detachment apparatus according to claim 2, wherein the guide unit passes through the weight unit, and the weight unit is fixed with respect to the guide unit by one end of a first fastening member (37) protruding into the weight unit and abutting against the guide unit.
4. A pump cap attachment/detachment apparatus according to claim 2, wherein a first stopper (331) and a second stopper (332) are provided on the guide unit, and the weight unit is located between the first stopper (331) and the second stopper (332).
5. A pump cap attachment/detachment apparatus according to claim 4, wherein the first retaining member (331) is a retaining step provided on the guide unit, and/or the second retaining member (332) is a second fastening member threadedly coupled to the guide unit.
6. A pump cap attachment/detachment apparatus according to claim 2, wherein the weight unit includes a weight block (35), and a weight (36) detachably attached to the weight block (35) is provided thereon.
7. A pump cap attachment/detachment apparatus according to claim 6, characterized in that the weight of the balancing weight (36) is smaller than the weight of the balancing weight (35).
8. A pump cap attachment/detachment apparatus according to claim 2, characterized in that the guide unit includes a connection plate (32) detachably connected to the pump cap (10), and a guide portion (33) connected to the connection plate (32), the weight unit being slidably connected to the guide portion (33).
9. A pump cap attachment/detachment apparatus according to any one of claims 1 to 8, further comprising an attachment/detachment handle detachably attached to the guide unit, the attachment/detachment handle being configured to apply an external force to horizontally move the pump cap (10) axially along the attachment hole (101) to approach or separate from the pump body (20).
10. A pump cap attachment/detachment apparatus according to claim 9, characterized in that the attachment/detachment handle is provided at an end of the guide unit that faces away from the pump cap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813663.6U CN212250616U (en) | 2020-05-15 | 2020-05-15 | Pump cover dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813663.6U CN212250616U (en) | 2020-05-15 | 2020-05-15 | Pump cover dismounting device |
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| Publication Number | Publication Date |
|---|---|
| CN212250616U true CN212250616U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020813663.6U Active CN212250616U (en) | 2020-05-15 | 2020-05-15 | Pump cover dismounting device |
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| CN (1) | CN212250616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503056A (en) * | 2020-05-15 | 2020-08-07 | 上海电气凯士比核电泵阀有限公司 | Pump cover dismounting device and dismounting method |
| CN113500380A (en) * | 2021-08-24 | 2021-10-15 | 合肥恒大江海泵业股份有限公司 | Diving gate pump installation tool, and assembly system and method using same |
-
2020
- 2020-05-15 CN CN202020813663.6U patent/CN212250616U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503056A (en) * | 2020-05-15 | 2020-08-07 | 上海电气凯士比核电泵阀有限公司 | Pump cover dismounting device and dismounting method |
| CN113500380A (en) * | 2021-08-24 | 2021-10-15 | 合肥恒大江海泵业股份有限公司 | Diving gate pump installation tool, and assembly system and method using same |
| CN113500380B (en) * | 2021-08-24 | 2022-03-22 | 合肥恒大江海泵业股份有限公司 | Diving gate pump installation tool, and assembly system and method using same |
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