CN204283974U - A kind of water pump spindle end nut locking mechanism - Google Patents
A kind of water pump spindle end nut locking mechanism Download PDFInfo
- Publication number
- CN204283974U CN204283974U CN201420607411.2U CN201420607411U CN204283974U CN 204283974 U CN204283974 U CN 204283974U CN 201420607411 U CN201420607411 U CN 201420607411U CN 204283974 U CN204283974 U CN 204283974U
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- China
- Prior art keywords
- axle
- nut
- coupling
- screw
- water pump
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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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Abstract
The utility model discloses a kind of water pump spindle end nut locking mechanism, belong to mechanical manufacturing field, locking mechanism comprises the first axle, first coupling, first key, first nut and the first screw, first coupling is sheathed on the first axle, first axle and the first coupling are provided with the first groove coordinated with the first key, first key is located in the first groove, first axle forms key with the first coupling by the first key and is connected, first nut sleeve is located on the axle head of the first axle, and be threaded connection and be connected with the first axle, first nut is provided with the first screw hole, conical surface end and first screw hole of the first screw are threaded connection, and contact with the first coupling through the first screw hole.The technical solution of the utility model makes interlock between axle and axle by key connection, prevent axle head from reversing and drive nut loosening, strengthen the stability of nut locking simultaneously, ensure that the relative position of impeller in water pump, improve the efficiency of water pump, avoid the generation of potential safety hazard.
Description
Technical field
The utility model belongs to mechanical manufacturing field, relates to a kind of locking mechanism, particularly relates to a kind of water pump spindle end nut locking mechanism.
Background technique
Vertical single-stage mixed flow pump, can for large and medium-sized farm irrigation facility irrigation and drainage, and also can be used for industrial and mineral, the lifting of ship code water level, urban water supply and sewerage, power station circulating water etc., using scope is very extensive.The features such as the efficient height of this pump, cavitation performance are good, are particularly suitable for the use occasion that fluctuation of water table is comparatively large and lift demand is higher.This pump is vertical structure, and in general, axle is made up of pump shaft, transmission shaft, motor shaft three sections, due in the operation process of pump, needs to be connected by coupling, and how firm for coupling being fixed on axle is just seemed particularly important between axle with axle.
Existing vertical pump shaft is connected by coupling with between axle, and fixes the relative position of coupling with shaft end nut.But find in pump actual motion, this Placement does not have too large problem in start with in running, when pump cuts out, water in exit of pump pipeline is affected by gravity and can blows back into the pump housing downwards, and current direction changes and causes water pump vane to reverse, and drives whole rotor to reverse, shaft end nut now on axle will loosen, this not only changes the relative position of impeller in water pump, also can have influence on the efficiency of water pump, but also has very large potential safety hazard.
Model utility content
In view of this, the utility model connects not tight defect for nut in prior art, provides a kind of water pump spindle end nut locking mechanism.
For achieving the above object, concrete technological scheme is as follows:
A kind of water pump spindle end nut locking mechanism, the locking being applicable to the axle head of water pump connects, described locking mechanism comprises the first axle, first coupling, first key, first nut and the first screw, described first coupling is sheathed on described first axle, described first axle and the first coupling are provided with the first groove coordinated with described first key, described first key is located in described first groove, described first axle forms key with the first coupling by described first key and is connected, described first nut sleeve is located on the axle head of described first axle, and be threaded connection and be connected with described first axle, described first nut is provided with the first screw hole, conical surface end and described first screw hole of described first screw are threaded connection, and contact with described first coupling through described first screw hole.
Preferably, also comprise the second axle, the second coupling, the second key, the second nut and the second screw, described second axle forms key with described second coupling by the second key and is connected, described second nut is connected with the axle head of described second axle, the conical surface end of described second screw passes described second nut and contacts with described second coupling, is releasable connection relation between described first coupling and the second coupling.
Preferably, the bearing of trend of the first groove on described first axle communicates with the bearing of trend of described first axle.
Preferably, the axial end that described first coupling is positioned at described first axle is provided with step surface, and the conical surface end of described first screw contacts with described step surface.
Preferably, described first nut is provided with two the first screw holes, and described two the first screw holes are symmetrically arranged on described first nut.
Preferably, the quantity of described first screw is 2.
Preferably, the axle head of described first axle is contrary with the sense of rotation of the screw thread that described first nut and the first screw coordinate with the screw thread of the first nut screw connection.
Preferably, the position of the non-conical surface end of described first screw, should not exceed the end face of the first nut non-contact end; The endface position of described first nut non-contact end, should not exceed the end face of the axle head of described first axle; The endface position of the axle head of described first axle, should not exceed the end face of the large end of described first coupling.
Preferably, described first coupling and the second coupling are by bolt releasable connection.
Preferably, described first axle and the second axle are the pump shaft of water pump and transmission shaft or transmission shaft and motor shaft.
Relative to prior art, the technical solution of the utility model makes interlock between axle and axle by key connection, prevent axle head from reversing and drive nut loosening, strengthen the stability of nut locking simultaneously, ensure that the relative position of impeller in water pump, improve the efficiency of water pump, avoid the generation of potential safety hazard.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation that the diaxon of the utility model embodiment connects.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to accompanying drawing, concrete explaination is done to embodiment of the present utility model.
A kind of water pump spindle end nut locking mechanism of embodiment of the present utility model as shown in Figure 1, the locking being applicable to the axle head of water pump connects.
Locking mechanism comprises the first axle 1, first coupling 2, first key 3, first nut 4 and the first screw 5.First coupling 2 is sheathed on the first axle 1, and the first axle 1 and the first coupling 2 are provided with the first groove coordinated with the first key 3, and the first key 3 is located in the first groove, and the first axle 1 forms key with the first coupling 2 by the first key 3 and is connected.
First nut 4 is sheathed on the axle head of the first axle 1, and is threaded connection and is connected with the first axle 1.First nut 4 is provided with the first screw hole, and conical surface end and first screw hole of the first screw 5 are threaded connection, and contacts with the first coupling 2 through the first screw hole.
Embodiment of the present utility model makes interlock between axle and axle by key connection, the conical surface end of Cock screw holds out against on the inner plane of coupling, the surface friction drag of strengthening nut profile of tooth, prevent because axle head reversion drives nut loosening, strengthen the stability of nut locking simultaneously, ensure that the relative position of impeller in water pump, improve the efficiency of water pump, avoid the generation of potential safety hazard.
As shown in Figure 2, embodiment of the present utility model also comprises the second axle 6, second coupling 7, second key 8, second nut 9 and the second screw 10.Second axle 6 forms key with the second coupling 7 by the second key 8 and is connected, and the second nut 9 is connected with the axle head of the second axle 6, and the conical surface end of the second screw 10 passes the second nut 9 and contacts with the second coupling 7.Releasable connection between first coupling 2 and the second coupling 7.First axle 1 and the second axle 6 are preferably the pump shaft of water pump and transmission shaft or transmission shaft and motor shaft.
As shown in Figures 1 and 2, in embodiment of the present utility model, the bearing of trend of the first groove 3 on the first axle 1 communicates with the bearing of trend of the first axle 1.The axial end that first coupling 2 is positioned at the first axle 1 is provided with step surface, and the conical surface end of the first screw 5 contacts with step surface.The position of the non-conical surface end of the first screw 5, should not exceed the end face of the first nut 4 non-contact end, and the endface position of the first nut 4 non-contact end, should not exceed the end face of the axle head of the first axle 1; The endface position of the axle head of the first axle 1, should not exceed the end face that the first coupling 2 is held greatly.
In addition, preferably the first nut 4 is provided with two the first screw holes, and two the first screw holes are symmetrically arranged on the first nut 4.The quantity of the first screw 5 is 2, is located in two the first screw holes.And preferably the axle head of the first axle is contrary with the sense of rotation of the screw thread that the first nut and the first screw coordinate with the screw thread of the first nut screw connection.
First coupling 2 and the second coupling 7 are by bolt 11 releasable connection.
When mounted, first to select two axles needing coupling to connect, and determine whether axle head has the screw thread of assembled shaft end nut.
Key is loaded the keyway on axle, and be inserted in coupling.
Shaft end nut special tool is loaded axle head screw thread, and attention will be screwed into the end, and is adjacent to coupling inner plane.
Load in the tapped hole of shaft end nut both sides by interior hexagonal Cock screw (standard code GB/T78), notice that the conical surface end of socket head screw will hold out against on the inner plane of coupling, the most handy thread locking adhesive is fixed.
Be connected and fixed by two coupling with bolt, nut and packing ring, installation steps terminate.
Be described in detail specific embodiment of the utility model above, but it is just as example, the utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the utility model is carried out and substituting also all among category of the present utility model.Therefore, not departing from the equalization conversion and amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (10)
1. a water pump spindle end nut locking mechanism, the locking being applicable to the axle head of water pump connects, it is characterized in that, described locking mechanism comprises the first axle, first coupling, first key, first nut and the first screw, described first coupling is sheathed on described first axle, described first axle and the first coupling are provided with the first groove coordinated with described first key, described first key is located in described first groove, described first axle forms key with the first coupling by described first key and is connected, described first nut sleeve is located on the axle head of described first axle, and be threaded connection and be connected with described first axle, described first nut is provided with the first screw hole, conical surface end and described first screw hole of described first screw are threaded connection, and contact with described first coupling through described first screw hole.
2. water pump spindle end nut locking mechanism as claimed in claim 1, it is characterized in that, also comprise the second axle, the second coupling, the second key, the second nut and the second screw, described second axle forms key with described second coupling by the second key and is connected, described second nut is connected with the axle head of described second axle, the conical surface end of described second screw passes described second nut and contacts with described second coupling, is releasable connection relation between described first coupling and the second coupling.
3. water pump spindle end nut locking mechanism as claimed in claim 2, it is characterized in that, the bearing of trend of the first groove on described first axle communicates with the bearing of trend of described first axle.
4. water pump spindle end nut locking mechanism as claimed in claim 3, it is characterized in that, the axial end that described first coupling is positioned at described first axle is provided with step surface, and the conical surface end of described first screw contacts with described step surface.
5. water pump spindle end nut locking mechanism as claimed in claim 4, it is characterized in that, described first nut is provided with two the first screw holes, and described two the first screw holes are symmetrically arranged on described first nut.
6. water pump spindle end nut locking mechanism as claimed in claim 5, it is characterized in that, the quantity of described first screw is 2.
7. water pump spindle end nut locking mechanism as claimed in claim 6, it is characterized in that, the axle head of described first axle is contrary with the sense of rotation of the screw thread that described first nut and the first screw coordinate with the screw thread of the first nut screw connection.
8. water pump spindle end nut locking mechanism as claimed in claim 7, it is characterized in that, the position of the non-conical surface end of described first screw, should not exceed the end face of the first nut non-contact end; The endface position of described first nut non-contact end, should not exceed the end face of the axle head of described first axle; The endface position of the axle head of described first axle, should not exceed the end face of the large end of described first coupling.
9. water pump spindle end nut locking mechanism as claimed in claim 8, is characterized in that, described first coupling and the second coupling are by bolt releasable connection.
10. water pump spindle end nut locking mechanism as claimed in claim 9, is characterized in that, described first axle and the second axle are the pump shaft of water pump and transmission shaft or transmission shaft and motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607411.2U CN204283974U (en) | 2014-10-20 | 2014-10-20 | A kind of water pump spindle end nut locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607411.2U CN204283974U (en) | 2014-10-20 | 2014-10-20 | A kind of water pump spindle end nut locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283974U true CN204283974U (en) | 2015-04-22 |
Family
ID=52867139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420607411.2U Expired - Fee Related CN204283974U (en) | 2014-10-20 | 2014-10-20 | A kind of water pump spindle end nut locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779945A (en) * | 2018-12-27 | 2019-05-21 | 枞阳县中邦科技信息咨询有限公司 | A kind of plastic pump pump shaft |
-
2014
- 2014-10-20 CN CN201420607411.2U patent/CN204283974U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779945A (en) * | 2018-12-27 | 2019-05-21 | 枞阳县中邦科技信息咨询有限公司 | A kind of plastic pump pump shaft |
| CN109779945B (en) * | 2018-12-27 | 2020-12-22 | 安徽泾县天和泵阀有限公司 | Plastic pump shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150422 Termination date: 20201020 |