CN210423137U - Combined type drain pump packing adjusting device - Google Patents
Combined type drain pump packing adjusting device Download PDFInfo
- Publication number
- CN210423137U CN210423137U CN201921162714.7U CN201921162714U CN210423137U CN 210423137 U CN210423137 U CN 210423137U CN 201921162714 U CN201921162714 U CN 201921162714U CN 210423137 U CN210423137 U CN 210423137U
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- China
- Prior art keywords
- packing
- pressing plate
- combined type
- drain pump
- type drain
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012856 packing Methods 0.000 title claims abstract description 69
- 239000000945 filler Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 210000004907 gland Anatomy 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A composite draining pump packing adjusting device comprises a shaft sleeve, wherein an upper pressing plate and a lower pressing plate are arranged on the shaft sleeve, the upper pressing plate and the lower pressing plate are matched through an inclined plane, the upper pressing plate is in threaded connection with the shaft sleeve through an adjusting bolt, and packing filler is arranged in the lower pressing plate; the inclined planes of the upper pressing plate and the lower pressing plate are matched more tightly by adjusting the adjusting bolts, axial pressure is generated, gaps among the multi-segment lower pressing plates are smaller and smaller, radial pressure is generated, packing fillers are more attached to the pump shaft by axially and radially extruding the packing fillers, and a sealing effect is achieved; the packing box is compact and reliable in structure, reliable in sealing performance, convenient to adjust by maintenance personnel, more convenient to install and replace packing at the later stage, and suitable for popularization and use.
Description
Technical Field
The utility model belongs to the technical field of the water pump seal and specifically relates to a combined type drain pump packing adjusting device is related to.
Background
The long-shaft deep well pump is required to drain water when a water collecting well and a leakage water collecting well are overhauled in a large hydropower station, the power of a draining pump is large, the running time is long, the water stopping packing at the pump shaft position of the long-shaft deep well pump belongs to packing type sealing, and the cuts of each layer of packing need to be staggered. If the packing gland is pressed too tightly, the load of the pump shaft can be greatly increased, the running current of the motor can be increased, the heat is serious, and the motor can be burnt more seriously; if the packing gland is pressed too loosely, the amount of water leakage can be greatly increased after the packing is worn, and the surrounding environment is influenced. For lubricating and cooling the pump shaft and the packing, the water amount allowed to be dripped by the packing type seal is about 30 drops per minute. After the drainage pump operates for a period of time, the packing type sealing loss is more, the water leakage amount of the packing is increased, and the packing gland is required to be adjusted frequently in order to ensure the proper water leakage amount of the packing.
Because packing and rotatory pump shaft direct contact, the packing can be worn and torn gradually, and the clearance of packing and pump shaft is adjusted through vertically packing gland to current method, and the suitable degree of adjustment is: when the water pump rotates, the packing position is slightly seeped, but not leaked. If the gland is fastened to the bottom or the water throwing amount is larger, the packing is required to be added. In the in-service use, the packing filler wearing and tearing often are very fast, and the elasticity degree of packing gland needs often to be adjusted, because packing gland can only compress tightly packing perpendicularly downwards, and the packing cross sectional shape changes the back, and the clearance of packing and pump shaft reduces, reaches the purpose of stagnant water. This kind of adjustment mode of fastening packing gland can cause packing loss rate very fast, and packing gland adjustment number of times is many or change packing number of times more, and the defect of "drain pump packing gets rid of water too big" class often takes place, can increase undoubtedly that drain pump maintainer work load is big, and work efficiency is lower, so, uses a combined type drain pump packing adjusting device to seem especially necessary.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a combined type drainage pump packing adjusting device, solves the water pump and seals and provide work efficiency, alleviate the problem of maintainer work load.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the packing shaft sleeve comprises a shaft sleeve, wherein an upper pressing plate and a lower pressing plate are arranged on the shaft sleeve, the upper pressing plate and the lower pressing plate are matched through inclined planes, the upper pressing plate is in threaded connection with the shaft sleeve through an adjusting bolt, and packing is arranged in the lower pressing plate.
In a preferred scheme, the upper pressure plate is in a boss shape, and the end face of the upper pressure plate is provided with a flange.
In a preferred scheme, the lower pressing plate is in a boss shape.
In the preferred scheme, the lower pressing plate has 2-10 petals.
In the preferred scheme, the packing filler is 1-10 layers.
In the preferred scheme, the shaft sleeve is in a concave table shape, and a limiting surface is arranged in the shaft sleeve.
In a preferred scheme, the packing is cut with an inclined opening.
The utility model provides a combined type drain pump packing adjusting device, which leads the inclined planes of an upper pressing plate and a lower pressing plate to be matched more closely by adjusting an adjusting bolt, generates axial pressure, leads the clearance between a plurality of petals of lower pressing plates to be smaller and smaller, generates radial pressure, leads packing to be more attached to a pump shaft by extruding the packing in the axial direction and the radial direction, and achieves the sealing effect; the packing box is compact and reliable in structure, reliable in sealing performance, convenient to adjust by maintenance personnel, and more convenient to install and replace packing at the later stage.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a cross-sectional view of the overall structure of the present invention;
FIG. 2 is a structural diagram of the composite adjusting device of the present invention;
fig. 3 is a top view of the lower platen of the present invention;
in the figure: a pump shaft 1; an upper press plate 2; a lower press plate 3; packing 4; an adjusting bolt 5; a shaft sleeve 6; the limiting surface 601.
Detailed Description
As shown in fig. 1-3, a combined type drain pump packing adjusting device, including axle sleeve 6, be equipped with top board 2 and holding down plate 3 on the axle sleeve 6, top board 2 and holding down plate 3 pass through the inclined plane cooperation, and top board 2 passes through adjusting bolt 5 and 6 threaded connection of axle sleeve, is equipped with packing 4 in the holding down plate 3, and from this structure, top board 2 and holding down plate 3 pass through the cooperation on inclined plane, and adjusting bolt 5 can produce axial and radial two direction pressure, fully extrudees packing 4 and the axle sleeve 6 contact in the holding down plate 3, has reached sealed effect, can continue to adjust adjusting bolt 5 after packing 4 wearing and tearing, and the clearance is zero between the holding down plate 3, just need to change new packing 4.
In the preferred scheme, the upper pressing plate 2 is in a boss shape, the end face of the upper pressing plate 2 is provided with a flange, and the upper pressing plate 2 is in boss-shaped embedded installation due to the structure, so that the space is saved, and the end face flange can be matched more closely and reliably.
In the preferred scheme, the lower pressing plate 3 is in a boss shape, so that the lower pressing plate 3 is in boss-shaped embedded installation, the space is saved, the use and the operation are convenient, and the structure is compact.
In the preferred scheme, holding down plate 3 is 2~10 lamellas, from this structure, 3 dispersible extrusion forces of holding down plate are suitable for different operating modes.
In the preferred scheme, the packing filler 4 is 1-10 layers, and the packing filler 4 can meet different sealing requirements due to the structure.
In the preferred scheme, the shaft sleeve 6 is in a concave table shape, and the limiting surface 601 is arranged in the shaft sleeve 6, so that the structure is adopted, the shaft sleeve 6 is installed in a concave table shape in an embedded mode, the space is saved, and the adjusting depth can be limited by the built-in limiting surface 601.
In the preferred scheme, packing filler 4 is cut there is the bevel connection, and from this structure, packing filler 4 is cut there is the bevel connection, and the staggered angle of layer upon layer incision arranges, has guaranteed can effectual deformation through axial and radial extrusion force down to this laminating is on axle sleeve 6, and the staggered angle of incision is in order to ensure sealed reliable.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (7)
1. The utility model provides a combined type drain pump packing adjusting device which characterized by: including axle sleeve (6), be equipped with top board (2) and holding down plate (3) on axle sleeve (6), top board (2) and holding down plate (3) are through the inclined plane cooperation, and top board (2) are equipped with packing (4) through adjusting bolt (5) and axle sleeve (6) threaded connection in holding down plate (3).
2. The packing adjustment device for a combined type drain pump according to claim 1, wherein: the upper pressing plate (2) is in a boss shape, and the end face of the upper pressing plate (2) is provided with a flange.
3. The packing adjustment device for a combined type drain pump according to claim 1, wherein: the lower pressing plate (3) is in a boss shape.
4. The packing adjustment device for a combined type drain pump according to claim 1, wherein: the lower pressing plate (3) is 2-10 petals.
5. The packing adjustment device for a combined type drain pump according to claim 1, wherein: the packing filler (4) comprises 1-10 layers.
6. The packing adjustment device for a combined type drain pump according to claim 1, wherein: the shaft sleeve (6) is in a concave table shape, and a limiting surface (601) is arranged in the shaft sleeve (6).
7. The packing adjustment device for a combined type drain pump according to claim 1, wherein: the packing (4) is cut with an oblique opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162714.7U CN210423137U (en) | 2019-07-23 | 2019-07-23 | Combined type drain pump packing adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162714.7U CN210423137U (en) | 2019-07-23 | 2019-07-23 | Combined type drain pump packing adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423137U true CN210423137U (en) | 2020-04-28 |
Family
ID=70384163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921162714.7U Active CN210423137U (en) | 2019-07-23 | 2019-07-23 | Combined type drain pump packing adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7550810B2 (en) | 2022-02-24 | 2024-09-13 | アイシー株式会社 | Water leakage prevention device |
| CN119712575A (en) * | 2024-11-14 | 2025-03-28 | 三峡金沙江云川水电开发有限公司 | An automatic adjustment device for the water leakage of deep well pump shaft seal |
-
2019
- 2019-07-23 CN CN201921162714.7U patent/CN210423137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7550810B2 (en) | 2022-02-24 | 2024-09-13 | アイシー株式会社 | Water leakage prevention device |
| CN119712575A (en) * | 2024-11-14 | 2025-03-28 | 三峡金沙江云川水电开发有限公司 | An automatic adjustment device for the water leakage of deep well pump shaft seal |
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