CN204851748U - Coupling - Google Patents
Coupling Download PDFInfo
- Publication number
- CN204851748U CN204851748U CN201520442696.3U CN201520442696U CN204851748U CN 204851748 U CN204851748 U CN 204851748U CN 201520442696 U CN201520442696 U CN 201520442696U CN 204851748 U CN204851748 U CN 204851748U
- Authority
- CN
- China
- Prior art keywords
- shaft
- coupling shaft
- coupling
- connecting axle
- utility
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a coupling, it includes the connecting axle, descends the connecting axle, go up the connecting axle with be equipped with the rectangle keyway that is the cruciform symmetry and arranges down on the outer circumference of connecting axle, the square key inslot is inlayed there is the square key, have the screw on the square key, respectively with go up the connecting axle with connecting axle fastening down. The utility model discloses simple structure, the preparation is easy, convenient to detach, it is good especially to connect the rigidity, and the axiality is good.
Description
Technical field
The utility model relates to a kind of shaft coupling, is specifically related to a kind of shaft coupling for vertical long shaft pump.
Background technique
Vertical long shaft pump can be used for conveying less than 55 DEG C clear water, rainwater, the iron oxide severe edema due to hypofunction of the spleen, sewage, there is the liquid such as corrosive industrial wastewater, seawater, be widely used in the industrial and mining enterprise such as sewage treatment works, power plant, Iron And Steel Plant, mine, and municipal plumbing, the engineering such as to control flood and drain flooded fields.Because the vertical shaft length of vertical long shaft pump is often beyond 10 meters, will some sections be divided into, be then coupled together by box coupling.In actual use, because vertical shaft and box coupling soak in a liquid for a long time, often there is corrosion in junction plane place, is sticked together, and causes dismounting difficulty.
Model utility content
The utility model object is the defect existed for prior art, provides a kind of shaft coupling for vertical long shaft pump.
The utility model for achieving the above object, adopt following technological scheme: a kind of shaft coupling, comprise coupling shaft, lower coupling shaft, described upper coupling shaft and described lower coupling shaft excircle are provided with the rectangle keyway of the arrangement in cruciform symmetry, square key is inlaid with in described rectangle keyway, described square key has screw, respectively with described upper coupling shaft and described lower coupling shaft fastening.
Further, described upper coupling shaft is equal with described lower coupling shaft external diameter.
Further, described upper coupling shaft and described lower coupling shaft junction are also overlapped and are had axle sleeve.
The beneficial effects of the utility model: the utility model structure is simple, make easily, and be convenient to dismounting, particularly connect good rigidly, coaxality is good.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model.
Fig. 2 is A-A sectional view of the present utility model.
Embodiment
As shown in Figure 1 and Figure 2, a kind of shaft coupling, comprise coupling shaft 1, lower coupling shaft 5, described upper coupling shaft 1 and described lower coupling shaft 5 excircle are provided with the rectangle keyway of the arrangement in cruciform symmetry, square key 3 is inlaid with in described rectangle keyway, described square key 3 has screw 2, respectively with described upper coupling shaft 1 and described lower coupling shaft 5 fastening.Described upper coupling shaft 1 is equal with described lower coupling shaft 5 external diameter.In order to strengthen rigidity, described upper coupling shaft 1 and described lower coupling shaft 5 junction are also overlapped and are had axle sleeve 4.The axially locating of axle sleeve 4 can use the shaft shoulder, also can use Cock screw.During dismounting, axle sleeve 4 is gone here and there to above square key 3, back out screw 2, breakdown square key 3.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a shaft coupling, comprise coupling shaft (1), lower coupling shaft (5), it is characterized in that: described upper coupling shaft (1) and described lower coupling shaft (5) excircle are provided with the rectangle keyway of the arrangement in cruciform symmetry, square key (3) is inlaid with in described rectangle keyway, described square key (3) has screw (2), respectively with described upper coupling shaft (1) and described lower coupling shaft (5) fastening.
2. a kind of shaft coupling according to claim 1, is characterized in that: described upper coupling shaft (1) is equal with described lower coupling shaft (5) external diameter.
3. a kind of shaft coupling according to claim 1, is characterized in that: described upper coupling shaft (1) and described lower coupling shaft (5) junction are also overlapped and had axle sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442696.3U CN204851748U (en) | 2015-06-18 | 2015-06-18 | Coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442696.3U CN204851748U (en) | 2015-06-18 | 2015-06-18 | Coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851748U true CN204851748U (en) | 2015-12-09 |
Family
ID=54742302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520442696.3U Expired - Fee Related CN204851748U (en) | 2015-06-18 | 2015-06-18 | Coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851748U (en) |
-
2015
- 2015-06-18 CN CN201520442696.3U patent/CN204851748U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |