CN209615309U - A kind of fixation device of axial direction part positioning - Google Patents
A kind of fixation device of axial direction part positioning Download PDFInfo
- Publication number
- CN209615309U CN209615309U CN201821974434.1U CN201821974434U CN209615309U CN 209615309 U CN209615309 U CN 209615309U CN 201821974434 U CN201821974434 U CN 201821974434U CN 209615309 U CN209615309 U CN 209615309U
- Authority
- CN
- China
- Prior art keywords
- ring
- pump shaft
- balancing drum
- circular groove
- axial direction
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 125000006850 spacer group Chemical group 0.000 claims abstract description 28
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 8
- 230000003628 erosive effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Abstract
The utility model relates to a kind of fixation devices of axial part positioning, the fixation device of axial direction part positioning includes pump shaft, balancing drum is installed on pump shaft outer round surface, the interior round tube hole across sealing device of pump shaft, sealing device is installed on the inner headed face of balancing drum, the interior round tube hole across spacer ring of pump shaft, and spacer ring is installed on the inner headed face of balancing drum, the rear surface of sealing device and the front surface of spacer ring fit to form the seal of sealing device axial restraint, have obstructed the axial leakage of medium.The interior round tube hole across snap ring of pump shaft, snap ring are installed on the inner headed face of positioning ring, and holding screw passes through the ladder hole of positioning ring, connect with balancing drum rear surface.The utility model structure is simple, has not only obstructed the axial leakage of medium, but also eliminates being locked for screw thread, avoids screw thread in the erosion damage of screw thread, improves safety and reliability.Maintenance when will not because of screw thread destruction and need replacing pump shaft, it is very convenient.
Description
Technical field
The utility model relates to a kind of axial restraint components, and in particular to a kind of fixation device of axial direction part positioning.
Background technique
In general, when balancing drum is installed on the surface of pump shaft needing that balancing drum is fixed.The usual position of balancing drum
Behind impeller, with key or it is threadedly secured on axis, balance cylinder is connected with import with pipeline.The leakage quantity of balancing drum depends on
The radial clearance of pressure difference and balancing drum, general leakage quantity are larger.By the selection of balancing drum diameter, most axial direction can be balanced
Power, but it is unable to automatically balancing axial force.Conventional scheme is all the Combination Design of shaft shoulder step and screw nut.
Although currently existing scheme is played by the Combination Design of shaft shoulder step and screw nut makees the fixed of balancing drum
With, but simply there is no form axial seal, the axial leakage for obstructing medium of having no idea for currently existing scheme design.It is existing
Some schemes set the Combination Design by shaft shoulder step and screw nut, so that the diameter of shaft shoulder step is excessive, it can not reasonable cloth
Office, wastes space.Currently existing scheme sets the Combination Design by shaft shoulder step and screw nut, so that screw thread is in high-pressure fluid
Environment in wash away for a long time, cause the erosion damage of screw thread.Simultaneously as the erosion damage of screw thread, just needs replacing in maintenance
Pump shaft, maintenance cost are higher.Existing scheme exist design it is unreasonable, will cause the axial leakage of medium, can not rational deployment, make
At the erosion damage of screw thread, maintenance cost is higher.
Utility model content
In view of the deficiencies of the prior art, the utility model discloses a kind of fixation devices of axial part positioning, to solve
Design in the prior art unreasonable, will cause the axial leakage of medium, can not rational deployment, cause the erosion damage of screw thread, tie up
Accomplish the problems such as this is higher.
Technical solution used by the utility model is as follows:
A kind of fixation device of axial direction part positioning, it is characterised in that:
Including pump shaft, balancing drum, positioning ring and snap ring；The balancing drum is installed on the outer round surface of the pump shaft；It is described
The interior round tube hole across the snap ring of pump shaft；The snap ring is installed on the rear portion of the balancing drum；The pump shaft passes through institute
The interior round tube hole of positioning ring is stated, the positioning ring is installed on outside the snap ring；The positioning ring is connect with the balancing drum.
Further technical solution are as follows: be formed with the first circular groove and the second circular groove at the rear portion of the balancing drum；Described
The diameter of two circular grooves is greater than the diameter of first circular groove；First circular groove is formed in front of second circular groove, and described
One circular groove and second circular groove form step structure.
Further technical solution are as follows: the fixed device is equipped with sealing device；The outer round surface of the pump shaft passes through
The interior round tube hole of the sealing device, the sealing device are embedded among first circular groove.
Further technical solution are as follows: the sealing device is sealing ring.
Further technical solution are as follows: the fixed device is equipped with spacer ring；The outer round surface of the pump shaft passes through institute
The interior round tube hole of spacer ring is stated, the spacer ring is embedded among second circular groove；The diameter of the spacer ring is greater than described close
The diameter of seal apparatus.
Further technical solution are as follows: be formed with locating slot in the outer round surface of the pump shaft, the locating slot is formed in
The rear portion of the balancing drum；The snap ring is embedded among the locating slot；After the front surface of the snap ring and the spacer ring
Surface fits, and the rear surface of the snap ring 7 and the rear surface of the locating slot 10 fit.
Further technical solution are as follows: it is formed with positioning step in the inner headed face of the positioning ring, the positioning step
Front surface and the rear surface of the snap ring fit.
Further technical solution are as follows: equidistant around the balancing drum rear surface center of circle to be formed with threaded hole.
Further technical solution are as follows: be also equipped with holding screw in the fixed device；In the positioning ring center week
Enclose it is equidistant be formed with ladder hole, the holding screw passes through the ladder hole, screws in the threaded hole.
Further technical solution are as follows: the holding screw is socket cap holding screw.
The beneficial effects of the utility model are as follows:
Due to being equipped with sealing device and spacer ring in the utility model, so that the combination of spacer ring and balancing drum, forms
The seal of sealing device axial restraint has obstructed the axial leakage of medium.Due to being equipped with positioning ring in the utility model,
Spacer ring and snap ring, so that the positioning of shaft shoulder step is eliminated, it is reasonable to arrange pump shaft radial data.Due to pacifying in the utility model
Equipped with positioning ring, spacer ring and snap ring avoid screw thread in the environment of high-pressure fluid so that cancelling being locked for screw thread
It washes away and erosion damage, improves the safety coefficient and safety factor of pump operation process.It is fixed due to being equipped in the utility model
Position ring, three combinations of spacer ring and snap ring so that when maintenance will not because of screw thread destruction and need replacing pump shaft.With it is existing
Technology structure compared is simple, and cost is relatively low, can obstruct the axial leakage of medium, and more reasonable layout improves pump operation
The safety and reliability of process repairs easier.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, pump shaft；2, balancing drum；3, sealing device；4, spacer ring；5, holding screw；6, positioning ring；7, snap ring；
8, the first circular groove；9, the second circular groove；10, locating slot；11, positioning step.
Specific embodiment
With reference to the accompanying drawing, illustrate the specific embodiment of the present embodiment.
Fig. 1 is the structural schematic diagram of the utility model.As shown in Figure 1, the utility model discloses a kind of axial part is fixed
The fixation device of position, including pump shaft 1, pump shaft 1 are cylinder.Balancing drum 2 is installed on the outer round surface of pump shaft 1, balancing drum 2
Internal circular surfaces are matched with the outer round surface of pump shaft 1.The rear portion of balancing drum 2 is formed with the first circular groove 8 and the second circular groove 9, and second
The diameter of circular groove 9 is greater than the diameter of the first circular groove 8, and the first circular groove 8 is formed in front of the second circular groove 9.In the inner circle table of balancing drum 2
Face, the rear positions of balancing drum 2, the first circular groove 8 and the second circular groove 9 form step structure.
The center of sealing device 3 is formed with interior round tube hole, outer round surface of the interior round tube hole to pass through pump shaft 1.It is excellent
Choosing, sealing device 3 is sealing ring.Preferably, the sealing ring material of sealing device 3 is rubber.First circle of the insertion of sealing device 3
Among slot 8.The center of spacer ring 4 is formed with interior round tube hole, outer round surface of the interior round tube hole to pass through pump shaft 1.Interval
Ring 4 is embedded among the second circular groove 9, and the diameter of spacer ring 4 is greater than the diameter of sealing device 3.Sealing device 3 is installed on spacer ring 4
The step that the rear positions of front, the front surface of spacer ring 4 and balancing drum 2 are formed fits, and spacer ring 4 is by 3 axis of sealing device
To fixation, spacer ring 4 makes sealing device 3 form seal.
The outer round surface of pump shaft 1 is formed with locating slot 10, and locating slot 10 is formed in the rear portion of balancing drum 2.The center of snap ring 7
Position is formed with interior round tube hole, outer round surface of the interior round tube hole to pass through pump shaft 1.Snap ring 7 is embedded among locating slot 10.Snap ring
7 are installed on the rear portion of balancing drum 2, and the front surface of snap ring 7 and the rear surface of spacer ring 4 fit, the rear surface and positioning of snap ring 7
The rear surface of slot 10 fits, and snap ring 7 withstands spacer ring 4, and spacer ring 4 withstands balancing drum 2, so that 2 sets of balancing drum in pump shaft 1
Outer surface can not move.The center of positioning ring 6 is formed with interior round tube hole, outer circle table of the interior round tube hole to pass through pump shaft 1
Face.The inner headed face of positioning ring 6 is formed with positioning step 11, and the front surface of positioning step 11 and the rear surface of snap ring 7 fit.It is fixed
Position ring 6 is installed on outside the snap ring 7.
It is equidistant around the 2 rear surface center of circle of balancing drum to be formed with threaded hole, it is also equipped with clamp screw on the securing means
Nail 5.Preferably, holding screw 5 is socket cap holding screw.It is equidistant around 6 center of circle of positioning ring to be formed with ladder hole, tightly
Screw 5 is determined across ladder hole, is screwed in threaded hole.Positioning ring 6 is connect by holding screw 5 with balancing drum 2, holding screw 5
Across ladder hole, it is connected to the rear portion of balancing drum 2, is covered so that balancing drum 2 is fixed in the outer surface of pump shaft 1.The fixation
Device is symmetric design, and the structure of positioning ring 6 and holding screw 5 is as shown in the top Fig. 1.
In the present embodiment, described positioning ring 6 and balancing drum 2 are connected for screw, however, not limited to this, can be energy
Enough play other connection types in the range of its function.
In the present embodiment, described holding screw 5 is socket cap holding screw, can however, not limited to this, can be
Play other screws in the range of its function.
In the present embodiment, described sealing device 3 is sealing ring, however, not limited to this, can be can play its function
Other sealing devices in the range of energy.
In the present embodiment, the sealing ring material of described sealing device 3 is rubber, however, not limited to this, can be energy
Enough play the other materials in the range of its function.
It is not that accurate " cylinder " can be and can send out in addition, having used words such as " cylinders " in this specification
Wave the state of " substantial cylindrical " in the range of its function.
Above description is the explanation to the utility model, is not the restriction to utility model, defined by the utility model
Range is referring to claim, and without prejudice to the basic structure of the utility model, the utility model can make any shape
The modification of formula.
Claims (10)
1. it is a kind of axial direction part positioning fixation device, it is characterised in that: including pump shaft (1), balancing drum (2), positioning ring (6) and
Snap ring (7)；The balancing drum (2) is installed on the outer round surface of the pump shaft (1)；The pump shaft (1) passes through the snap ring (7)
Interior round tube hole；The snap ring (7) is installed on the rear portion of the balancing drum (2)；The pump shaft (1) passes through the positioning ring (6)
Interior round tube hole, the positioning ring (6) are installed on the snap ring (7) rear portion；The positioning ring (6) connect with the balancing drum (2).
2. the fixation device of axial direction part positioning according to claim 1, it is characterised in that: in the balancing drum (2)
Rear portion is formed with the first circular groove (8) and the second circular groove (9)；The diameter of second circular groove (9) is greater than first circular groove (8)
Diameter；First circular groove (8) is formed in front of second circular groove (9), first circular groove (8) and second circular groove
(9) step structure is formed.
3. the fixation device of axial direction part positioning according to claim 2, it is characterised in that: the fixed device is equipped with
Sealing device (3)；The pump shaft (1) passes through the interior round tube hole of the sealing device (3)；Described in sealing device (3) insertion
Among first circular groove (8).
4. the fixation device of axial direction part positioning according to claim 3, it is characterised in that: the sealing device (3) is
Sealing ring.
5. the fixation device of axial direction part positioning according to claim 3, it is characterised in that: the fixed device is equipped with
Spacer ring (4)；The outer round surface of the pump shaft (1) passes through the interior round tube hole of the spacer ring (4), spacer ring (4) insertion
Among second circular groove (9)；The diameter of the spacer ring (4) is greater than the diameter of the sealing device (3).
6. the fixation device of axial direction part positioning according to claim 5, it is characterised in that: in the outer of the pump shaft (1)
Circular surfaces are formed with locating slot (10), and the locating slot (10) is formed in the rear portion of the balancing drum (2)；The snap ring (7) is embedding
Enter among the locating slot (10)；The front surface of the snap ring (7) and the rear surface of the spacer ring (4) fit, the card
The rear surface of ring (7) and the rear surface of the locating slot (10) fit.
7. the fixation device of axial direction part positioning according to claim 1, it is characterised in that: in the positioning ring (6)
Inner headed face is formed with positioning step (11), and the front surface of the positioning step (11) and the rear surface of the snap ring (7) fit.
8. the fixation device of axial direction part positioning according to claim 1, it is characterised in that: after the balancing drum (2)
It is equidistant around the center of circle of surface to be formed with threaded hole.
9. the fixation device of axial direction part positioning according to claim 8, it is characterised in that: also pacify in the fixed device
Equipped with holding screw (5)；Equidistant around the positioning ring (6) center of circle to be formed with ladder hole, the holding screw (5) is worn
The ladder hole is crossed, is screwed in the threaded hole.
10. the fixation device of axial direction part positioning according to claim 9, it is characterised in that: the holding screw (5) is
Socket cap holding screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821974434.1U CN209615309U (en) | 2018-11-28 | 2018-11-28 | A kind of fixation device of axial direction part positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821974434.1U CN209615309U (en) | 2018-11-28 | 2018-11-28 | A kind of fixation device of axial direction part positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209615309U true CN209615309U (en) | 2019-11-12 |
Family
ID=68444489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821974434.1U Expired - Fee Related CN209615309U (en) | 2018-11-28 | 2018-11-28 | A kind of fixation device of axial direction part positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209615309U (en) |
-
2018
- 2018-11-28 CN CN201821974434.1U patent/CN209615309U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191112 |