CN220029919U - Tool for centering operation of centrifugal pump shaft - Google Patents
Tool for centering operation of centrifugal pump shaft Download PDFInfo
- Publication number
- CN220029919U CN220029919U CN202320805994.9U CN202320805994U CN220029919U CN 220029919 U CN220029919 U CN 220029919U CN 202320805994 U CN202320805994 U CN 202320805994U CN 220029919 U CN220029919 U CN 220029919U
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- clamping piece
- mounting hole
- centrifugal pump
- fastening bolt
- coupler
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- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a tool for centering a centrifugal pump shaft, which comprises a first clamping piece, a second clamping piece and a bracket; the first clamping piece and the second clamping piece are connected through a detachable structure, an inner cavity formed after the first clamping piece and the second clamping piece are connected is clamped with the outer circle of the coupler, and the inner diameter of the inner cavity is smaller than the outer diameter of the coupler, so that the tool is fast clamped and fixed with the outer circle of the coupler. The middle section of the bracket is provided with a first mounting hole and a first threaded hole, and a fixing rod of the first dial indicator is arranged in the first mounting hole and is fixed through a first fastening bolt. The top of support is equipped with second mounting hole and second screw hole, and the dead lever of second percentage table is installed in the second mounting hole and is fixed through second fastening bolt. The tool is reliable in connection and simple in structure, and the efficiency of shaft centering work is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment installation, and particularly relates to a tool for centering a centrifugal pump shaft.
Background
Stator water-cooled generators are typically configured with a closed running pure water system, the circulating power of which comes from a pressurized centrifugal pump. And the centrifugal pump can be well centered by the shaft to play a role in vibration reduction, so that the centrifugal pump can run more reliably and stably, and meanwhile, the correct shaft centering can reduce the energy loss transmitted by a motor, reduce the abrasion of mechanical parts such as a bearing, a seal, a coupling and the like of the centrifugal pump, thereby prolonging the service life of the centrifugal pump.
The centrifugal pump is flexibly connected with the motor through the coupler, and the motor is used as a driving end to drive the centrifugal pump to rotate. Because the centrifugal pump and the connecting pipeline thereof are in an immovable state, the centering operation of the centrifugal pump shaft takes the axial line of the centrifugal pump as a reference, and the axial lines of the two devices are in the same straight line when the two devices operate by adjusting the relative positions of the motors. The traditional shaft centering method needs to use two dial indicators and a pair of magnetic attraction bases, the magnetic attraction bases are fixed on the coupler, the dial indicators are connected with the bases through a meter frame, and the axial deviation and the radial deviation of the motor shaft side are respectively monitored through a rotary centrifugal pump. The magnetic attraction base is insufficient in magnetic descending attraction after long-term use, so that the base is easy to fall off in the rotation process of the pump, and meanwhile, the watch stand is easy to break in the repeated elastic process to cause damage, so that great inconvenience is brought to maintenance work, and the efficiency of shaft centering work is seriously affected.
Disclosure of Invention
The utility model aims to provide a tool for centering a centrifugal pump shaft, which is used for rapidly fixing a dial indicator on a bracket by matching a clamping structure with the excircle of a coupler, and has the advantages of reliable connection and simple structure, and greatly improves the efficiency of centering the shaft. In order to achieve the technical characteristics, the aim of the utility model is realized in the following way:
a tooling for centering operation of a centrifugal pump shaft, the tooling comprising a first clamping piece and a second clamping piece; the first clamping piece and the second clamping piece are connected through a detachable structure combination; an inner cavity formed after the first clamping piece and the second clamping piece are connected is clamped with the outer circle of the coupler, and the inner diameter of the inner cavity is smaller than the outer diameter of the coupler; the outer side of the first clamping piece is fixedly provided with a bracket along the axial direction of the inner cavity, the middle section of the bracket is provided with a first mounting hole and a first threaded hole, the axial line of the first mounting hole is vertical to the axial line of the inner cavity and in the same plane, the first threaded hole is vertical to and penetrates through the first mounting hole, and a first fastening bolt is arranged in the first threaded hole; the top of support is equipped with second mounting hole and second screw hole, the axis of second mounting hole with the axis of inner chamber is parallel, the second screw hole perpendicular and link up in the second mounting hole, install the second fastening bolt in the second screw hole.
The first clamping piece and the second clamping piece are connected through a bolt combination.
The outer side of the first clamping piece is provided with a notch for accommodating the head of the third fastening bolt.
The support is fixed on the first clamping piece in a welding mode.
The tooling provided by the utility model comprises a first clamping piece, a second clamping piece and a bracket; the first clamping piece and the second clamping piece are connected through a detachable structure, an inner cavity formed after the first clamping piece and the second clamping piece are connected is clamped with the outer circle of the coupler, and the inner diameter of the inner cavity is smaller than the outer diameter of the coupler, so that the tool is fast clamped and fixed with the outer circle of the coupler. The middle section of the bracket is provided with a first mounting hole and a first threaded hole, and a fixing rod of the first dial indicator is arranged in the first mounting hole and is fixed through a first fastening bolt. The top of support is equipped with second mounting hole and second screw hole, and the dead lever of second percentage table is installed in the second mounting hole and is fixed through second fastening bolt. The tool is reliable in connection and simple in structure, and the efficiency of shaft centering work is greatly improved.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a front view of the tooling of the present utility model.
Fig. 2 is a top view of the tooling of the present utility model.
FIG. 3 is a state diagram of the utility model when the dial indicator is installed.
Fig. 4 is a schematic view of the structure of the bracket according to the present utility model.
Fig. 5 is a schematic structural view of a first engaging member according to the present utility model.
Fig. 6 is a schematic structural diagram of a second engaging member according to the present utility model.
Fig. 7 is a schematic diagram of the tool and the coupling according to the present utility model.
In the figure: the first clamping piece 1, the second clamping piece 2, the inner cavity 3, the bracket 4, the third fastening bolt 5, the first fastening bolt 6, the second fastening bolt 7, the first dial indicator 8, the second dial indicator 9, the coupler 10, the notch 11, the through hole 12, the third threaded hole 21, the first mounting hole 41, the first threaded hole 42, the second mounting hole 43 and the second threaded hole 44.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1-7, a tool for centering a centrifugal pump shaft comprises a first clamping piece 1 and a second clamping piece 2; the first clamping piece 1 and the second clamping piece 2 are connected in a combined manner through a detachable structure; an inner cavity 3 formed by connecting the first clamping piece 1 and the second clamping piece 2 is clamped with the outer circle of the coupler 10, and the inner diameter of the inner cavity 3 is smaller than the outer diameter of the coupler 10; the outer side of the first clamping piece 1 is fixedly provided with a bracket 4 along the axial direction of the inner cavity 3, the middle section of the bracket 4 is provided with a first mounting hole 41 and a first threaded hole 42, the axis of the first mounting hole 41 is perpendicular to the axis of the inner cavity 3 and in the same plane, the first threaded hole 42 is perpendicular to and penetrates through the first mounting hole 41, and a first fastening bolt 6 is arranged in the first threaded hole 42; the top of support 4 is equipped with second mounting hole 43 and second screw hole 44, the axis of second mounting hole 43 with the axis of inner chamber 3 is parallel, second screw hole (44) perpendicular and link up in second mounting hole 43, install second fastening bolt 7 in the second screw hole 44.
The tooling provided by the utility model comprises a first clamping piece 1, a second clamping piece 2 and a bracket 4; the first clamping piece 1 and the second clamping piece 2 are connected through a detachable structure, an inner cavity 3 formed after the first clamping piece 1 and the second clamping piece 2 are connected is clamped with the outer circle of the coupler 10, and the inner diameter of the inner cavity 3 is smaller than the outer diameter of the coupler, so that the tool and the outer circle of the coupler 10 can be fast clamped and fixed. The middle section of the bracket 4 is provided with a first mounting hole 41 and a first threaded hole 42, and the fixing rod of the first dial indicator 8 is mounted in the first mounting hole 41 and fixed through the first fastening bolt 6. The top of the bracket is provided with a second mounting hole 43 and a second threaded hole 44, and the fixed rod of the second dial indicator 9 is arranged in the second mounting hole 43 and is fixed through a second fastening bolt 7. The tool is reliable in connection and simple in structure, and the efficiency of shaft centering work is greatly improved.
Further, the first engaging member 1 and the second engaging member 2 are connected in combination by a third fastening bolt 5.
Further, a notch 11 is formed on the outer side of the first engaging member 1, for accommodating the head of the third fastening bolt 5.
Further, the bracket 4 is fixed to the first engaging member 1 by welding.
The operation steps and the working principle of the device are as follows:
step one, sleeving a first clamping piece 1 and a second clamping piece 2 on the outer circle of a coupler respectively;
and step two, the first clamping piece 1 and the second clamping piece 2 are connected into a whole through a third fastening bolt 5 to form an assembly, an inner cavity 3 of the assembly is matched with the outer circle of the coupler, and the third fastening bolt 5 is locked to complete clamping and fixing.
And thirdly, installing the fixing rod of the first dial indicator 8 in the first installation hole 41, and after adjusting the measuring head of the first dial indicator 8 to a proper position, rotating the first fastening bolt 6 to lock the first dial indicator 8, thereby completing the installation and fixation of the first dial indicator 8.
And step four, installing the fixing rod of the second dial indicator 9 in the second installation hole 43, and after adjusting the measuring head of the second dial indicator 9 to a proper position, rotating the second fastening bolt 7 to lock the second dial indicator 9, thereby completing the installation and fixation of the second dial indicator 9.
Claims (4)
1. A frock for centering work of centrifugal pump shaft, its characterized in that: the tool comprises a first clamping piece (1) and a second clamping piece (2); the first clamping piece (1) and the second clamping piece (2) are connected in a combined manner through a detachable structure; an inner cavity (3) formed by connecting the first clamping piece (1) and the second clamping piece (2) is clamped with the outer circle of the coupler (10), and the inner diameter of the inner cavity (3) is smaller than the outer diameter of the coupler (10); the outer side of the first clamping piece (1) is fixedly provided with a bracket (4) along the axial direction of the inner cavity (3), the middle section of the bracket (4) is provided with a first mounting hole (41) and a first threaded hole (42), the axis of the first mounting hole (41) is perpendicular to the axis of the inner cavity (3) and in the same plane, the first threaded hole (42) is perpendicular to and penetrates through the first mounting hole (41), and a first fastening bolt (6) is arranged in the first threaded hole (42); the top of support (4) is equipped with second mounting hole (43) and second screw hole (44), the axis of second mounting hole (43) with the axis of inner chamber (3) is parallel, second screw hole (44) perpendicular and link up in second mounting hole (43), install second fastening bolt (7) in second screw hole (44).
2. The tooling for centering operation of a centrifugal pump shaft according to claim 1, wherein: the first clamping piece (1) and the second clamping piece (2) are connected in a combined mode through a third fastening bolt (5).
3. The tooling for centering operation of a centrifugal pump shaft according to claim 2, wherein: the outer side of the first clamping piece (1) is provided with a notch (11) for accommodating the head of the third fastening bolt (5).
4. The tooling for centering operation of a centrifugal pump shaft according to claim 1, wherein: the support (4) is fixed on the first clamping piece (1) in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805994.9U CN220029919U (en) | 2023-04-12 | 2023-04-12 | Tool for centering operation of centrifugal pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805994.9U CN220029919U (en) | 2023-04-12 | 2023-04-12 | Tool for centering operation of centrifugal pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220029919U true CN220029919U (en) | 2023-11-17 |
Family
ID=88734247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320805994.9U Active CN220029919U (en) | 2023-04-12 | 2023-04-12 | Tool for centering operation of centrifugal pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220029919U (en) |
-
2023
- 2023-04-12 CN CN202320805994.9U patent/CN220029919U/en active Active
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