CN118110667A - Structure of rotor anti-loosening gland for pump - Google Patents
Structure of rotor anti-loosening gland for pump Download PDFInfo
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- CN118110667A CN118110667A CN202410509919.7A CN202410509919A CN118110667A CN 118110667 A CN118110667 A CN 118110667A CN 202410509919 A CN202410509919 A CN 202410509919A CN 118110667 A CN118110667 A CN 118110667A
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- 210000004907 gland Anatomy 0.000 title claims abstract description 81
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 52
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The invention relates to the technical field of rotor pumps, in particular to a structure of a rotor anti-loosening gland for a pump, which comprises a pump body, a main shaft and a secondary shaft, wherein the main shaft and the secondary shaft are arranged in the pump body, the parts of the main shaft and the secondary shaft, which are positioned in the pump body, are connected with a rotor through keys, one ends of the main shaft and the secondary shaft are respectively provided with a screw hole, one side of the rotor is provided with a counter bore, and a gland mechanism is arranged in the screw holes and the counter bores. According to the invention, the flange screw passes through the through hole formed in the gland and is connected with the locking steel wire threaded sleeve to prop against the gland and the rotor, and when the flange screw rotates to extrude the gland, the second clamping tooth on the nut is clamped with the first clamping tooth, so that the nut of the flange screw can be firmly clamped, and further additional locking force is provided.
Description
Technical Field
The invention relates to the technical field of rotor pumps, in particular to a structure of a rotor anti-loosening gland for a pump.
Background
The design of the double rotor pump is unique and skillfully utilizes two rotors which operate synchronously. The two rotors are driven by a pair of external synchronous gearboxes, and can synchronously rotate in opposite directions under the drive of a transmission shaft. This unique design gives the pump extremely high vacuum and discharge pressure, making it excellent in delivery.
However, there are some potential problems with such pumps. In particular, since the rotation directions of the main shaft and the auxiliary shaft are opposite, the rotor gland is easily loosened during a long-time operation. Once the gland loosens, the rotor may appear unstable in rotation, which not only affects the working efficiency of the pump, but may also cause damage to the overall performance of the pump.
Disclosure of Invention
The invention aims to provide a structure of a rotor anti-loosening gland for a pump, which aims to solve the problem that the rotor gland proposed in the background art is easy to loosen in a long-time working process. Once the gland loosens, the rotor may appear unstable as it rotates.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a structure for locking gland of rotor for pump, including pump body, main shaft, countershaft are installed in the pump body inside, main shaft, countershaft are located the inside part of pump body and have the rotor through the key connection, screw has all been seted up to main shaft, countershaft one end, the counter bore has been seted up to rotor one side, the screw with the inside gland mechanism that is provided with of counter bore, gland mechanism is used for fixing rotor and main shaft, countershaft together, gland mechanism includes the gland that the counter bore is inside to be set up, and still includes the inside locking wire thread sleeve that sets up of screw, the through-hole has been seted up to gland one side, the inside swing joint of through-hole has flange screw, flange screw nut one side sets up latch two, the inside collar, spring, top ring, latch one end can with locking wire thread sleeve is connected, the flange screw with locking wire thread sleeve is connected can be through latch two extrusion latches one simultaneously, the spring can drive latch one and two latches of top ring provide extra locking force.
The invention further provides that the locking type steel wire threaded sleeve is in threaded connection with the screw hole, and the gland is movably connected with the counter bore.
The invention is further arranged that one end of the flange screw is in threaded connection with the locking type steel wire thread insert in the screw hole.
The invention is further characterized in that one side of the inside of the through hole is provided with a mounting groove, the mounting ring is movably connected with the mounting groove, the top ring is in sliding connection with the inner wall of the mounting ring, and the spring is arranged between the mounting ring and the top ring.
The invention further provides that the side wall of the top ring is provided with a plurality of clamping blocks, the position, close to the clamping blocks, of the mounting ring is provided with a plurality of limiting grooves in a penetrating mode, the clamping blocks are matched with the limiting grooves, and one side of the top ring is provided with a first clamping tooth.
The invention further provides that the side wall of the gland is provided with a sealing groove, and a first sealing ring is arranged in the sealing groove.
The invention further provides that a second sealing groove is formed in the other side of the nut of the flange screw, and a second sealing ring is arranged in the second sealing groove.
The invention is further arranged that one side of the pump body is connected with the pump cover through the bolt, and a clamping groove is formed in one side of the pump body, which is close to the pump cover.
The invention is further characterized in that a third sealing ring is arranged in the clamping groove, a clamping strip is arranged at the position of the pump cover corresponding to the clamping groove, and the clamping strip is matched with the clamping groove.
The structure of the rotor anti-loosening gland for the pump has the beneficial effects that:
The flange screw passes through the through hole formed in the gland and is connected with the locking steel wire threaded sleeve to prop the gland against the rotor, when the flange screw rotates to extrude the gland, the second clamping tooth on the nut is clamped with the first clamping tooth, and the nut of the flange screw can be firmly clamped, so that extra locking force is provided. The whole anti-loose gland has the advantages of simple structure, reliable anti-loose performance, equipment space saving, realization of bidirectional anti-loose performance in forward and reverse rotation, no need of manufacturing non-standard shafts due to different working conditions, and processing cost saving.
Drawings
For a clearer description of the invention or of the solutions of the prior art, the following brief description of the drawings, which are used in the description of the embodiments or of the prior art, will be obvious, in which the following description is merely of the invention, and from which, without inventive effort, other drawings can be obtained for a person skilled in the art:
Fig. 1 is a perspective view showing a structure of a rotor anti-loose gland for a pump according to an embodiment of the present invention;
FIG. 2 is a view showing an inside of a portion A of a structure diagram of a rotor anti-loose gland for a pump according to an embodiment of the present invention;
FIG. 3 is an exploded view of the A position in FIG. 1 showing a construction of a rotor anti-loose gland for a pump according to an embodiment of the present invention;
FIG. 4 is an exploded view of B in FIG. 3 of a block diagram of a rotor anti-loosening gland for a pump according to an embodiment of the present invention;
Fig. 5 is an exploded view of C in fig. 3, which is a structural view of a rotor anti-loose gland for a pump according to an embodiment of the present invention.
Marked in the figure as: 1. a pump body; 2. a pump cover; 3. a clamping groove; 4. clamping strips; 5. a third seal ring; 6. a main shaft; 7. a secondary shaft; 8. a rotor; 9. countersink; 10. a screw hole; 11. flange screws; 12. locking the steel wire threaded sleeve; 13. a gland; 14. sealing grooves; 15. a first seal ring; 16. sealing grooves II; 17. a second sealing ring; 18. a through hole; 19. a mounting ring; 20. a spring; 21. a limit groove; 22. a top ring; 23. a clamping block; 24. a first latch; 25. a second latch; 26. and a mounting groove.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments of the present application and features in the embodiments may be mutually combined; the following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left" and "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, unless explicitly stated and limited otherwise, the term "coupled" is to be interpreted broadly, as for example, the term "coupled" may be a fixed connection, a removable connection, or an integral body; the mechanical connection and the transmission connection can be adopted; either directly, indirectly through intermediaries, or through a communication between two elements or an interaction between the two elements.
Referring to fig. 1, 2, 3 and fig. 4 and 5, a structure of a rotor anti-loosening gland for a pump comprises a pump body 1, a main shaft 6 and a secondary shaft 7, wherein the main shaft 6 and the secondary shaft 7 are installed inside the pump body 1, a rotor 8 is connected to the parts of the main shaft 6 and the secondary shaft 7, which are positioned inside the pump body 1, through keys, screw holes 10 are formed in one ends of the main shaft 6 and the secondary shaft 7, counter bores 9 are formed in one side of the rotor 8, a gland mechanism is arranged inside the screw holes 10 and the counter bores 9, the gland mechanism is used for fixing the rotor with the main shaft 6 and the secondary shaft 7 together, the gland mechanism comprises a gland 13 arranged inside the counter bores 9 and further comprises a locking type steel wire screw sleeve 12 arranged inside the screw holes 10, a through hole 18 is formed in one side of the gland 13, a flange screw 11 is movably connected to the through hole 18, a second latch 25 is arranged on one side of the flange screw 11, a mounting ring 19, a spring 20, a first latch 24 is arranged inside the through hole 18, one end of the flange screw 11 is connected with a locking type steel wire screw sleeve 12, the flange screw 11 is simultaneously connected with the locking type steel screw sleeve 12, and the screw 11 can extrude the latch 24 through the second latch 25, and the first latch 20 can drive the first latch 24 through the first latch 24 and the second latch 25.
Through adopting above-mentioned technical scheme, the screw 10 of a plurality of locking shaped steel silk threaded sleeves 12 is equipped with in advance on the top on main shaft 6, the countershaft 7, pack into corresponding locking shaped steel silk threaded sleeve 12 in screw 10 inside, then lock gland 13 on main shaft 6, countershaft 7 through flange screw 11, the latch second 25 on its nut can be in the same place with the first 24 card of pressure latch when flange screw 11 rotatory extrusion gland 13, can firmly block the nut of flange screw 11 to provide extra locking force. The locking mechanism can effectively prevent the flange screw 11 from loosening caused by vibration, impact or temperature change.
The locking type steel wire threaded sleeve 12 is in threaded connection with the screw hole 10, the gland 13 is in movable connection with the counter bore 9, one end of the flange screw 11 is in threaded connection with the locking type steel wire threaded sleeve 12 in the screw hole 10, the mounting groove 26 is formed in one side of the inside of the through hole 18, the mounting ring 19 is in movable connection with the mounting groove 26, the top ring 22 is in sliding connection with the inner wall of the mounting ring 19, the spring 20 is arranged between the mounting ring 19 and the top ring 22, a plurality of clamping blocks 23 are arranged on the side wall of the top ring 22, a plurality of limiting grooves 21 are formed in the position, close to the clamping blocks 23, of the mounting ring 19 in a penetrating manner, the clamping blocks 23 are matched with the limiting grooves 21, a clamping tooth I24 is arranged on one side of the top ring 22, a sealing groove 14 is formed in the side wall of the gland 13, a first sealing ring 15 is arranged in the sealing groove 14, a second sealing groove 16 is formed in the other side of the nut of the flange screw 11, and a second sealing ring 17 is arranged in the second sealing groove 16.
By adopting the technical scheme, the flange screw 11 passes through the through hole 18 arranged on the gland 13, the gland 13 is propped against the rotor 8 through being connected with the locking steel wire threaded sleeve 12, when the gland 13 is propped against the rotor 8 through rotating the flange screw 11, the second clamping tooth 25 at the bottom of the nut of the flange screw 11 is close to the first clamping tooth 24 on the top ring 22, when the flange screw 11 rotates to extrude the gland 13, the second clamping tooth 25 on the nut of the flange screw can synchronously extrude the first clamping tooth 24, the first clamping tooth 24 can retract into the mounting ring 19 together with the top ring 22 after being extruded, when the first clamping tooth 24 and the top ring 22 cannot retract to a certain extent, the first clamping tooth 24 can be clamped with the second clamping tooth 25 at the moment, meanwhile, the flange screw 11 can not continuously rotate to extrude the gland 13, the mounting ring 19 and the top ring 22 are internally provided with a plurality of springs 20, and the springs 20 can generate a supporting force, and the supporting force drives the first clamping tooth 24 to be tightly clung between the teeth of the second clamping tooth 25 through the top ring 22, so that the nut of the flange screw 11 can be firmly clamped. The locking mechanism can effectively prevent the flange screw 11 from loosening caused by vibration, impact or temperature change and the like, the counter bore 9 and the sealing groove 14 of the gland 13 are matched with the first sealing ring 15 to realize radial sealing so as to prevent leakage, and the through hole 18 and the sealing groove II 16 of the flange screw 11 are matched with the sealing ring II 17 to realize radial sealing so as to prevent leakage.
One side of the pump body 1 is connected with a pump cover 2 through a bolt, a clamping groove 3 is formed in one side, close to the pump cover 2, of the pump body 1, a third sealing ring 5 is arranged inside the clamping groove 3, a clamping strip 4 is arranged at a position, corresponding to the clamping groove 3, of the pump cover 2, and the clamping strip 4 is matched with the clamping groove 3.
Through adopting above-mentioned technical scheme, pump cover 2 is through card strip 4 and the butt joint of draw-in groove 3 of pump body 1 to reach the effect of location installation, set up a third sealing washer 5 in draw-in groove 3 simultaneously and increase the leakproofness of pump body 1.
According to the working principle of the invention, the rotor gland is easy to loosen in the long-time working process. Once the gland is loose, the rotor 8 may be unstable in rotation, which not only affects the working efficiency of the pump, but may also cause damage to the overall performance of the pump. Screw holes 10 for locking the steel wire threaded sleeves 12 are pre-arranged at the top ends of the main shaft 6 and the auxiliary shaft 7, corresponding locking steel wire threaded sleeves 12 are arranged in the screw holes 10, then a gland 13 is locked on the main shaft 6 and the auxiliary shaft 7 through flange screws 11, the gland 13 abuts against the rotor 8, simultaneously, the flange screws 11 generate sealing in through holes 18 of the gland 13 through sealing rings II 17, a first sealing ring 15 at the outer side of the gland 13 is matched with the rotor 8, and radial sealing is generated by the first sealing ring 15 so as to ensure that threads are not corroded by media;
The main shaft 6 and the auxiliary shaft 7 are respectively provided with a key, the rotor 8 is provided with a key groove, and the rotor 8 is connected with the main shaft 6 and the auxiliary shaft 7 through keys so as to limit the rotor 8 to do rotary motion. The screw holes 10 for locking the steel wire threaded sleeves 12 are formed in the end surfaces of the main shaft 6 and the auxiliary shaft 7, the screw holes 10 are arranged at proper positions on the end surfaces and are not in the same rotation axis with the main shaft 6 and the auxiliary shaft 7, the screw thread anti-loosening capability is improved, the counter bore 9 is formed in the rotor 8, the assembled gland 13 is sunk, and the processing time of the pump cover 2 is shortened. The end surfaces of the counter bore 9 are slightly higher than the end surfaces of the main shaft 6 and the auxiliary shaft 7, the gland 13 does not abut against the end surfaces of the main shaft 6 and the auxiliary shaft 7 after locking, the locking steel wire threaded sleeve 12 is screwed in, and the locking steel wire threaded sleeve 12 covers the depth 2/3 of the screw hole 10 so as to increase the connection strength and the service life of the threads of the main shaft 6 and the auxiliary shaft 7;
The flange screw 11 passes through the through hole 18 of the gland 13 and is connected with the locking steel wire screw sleeve 12 to prop the gland 13 against the rotor 8, when the gland 13 is propped against the rotor 8 by rotating the flange screw 11, the second clamping tooth 25 at the bottom of the nut of the flange screw 11 is close to the first clamping tooth 24 on the top ring 22, the top ring 22 can only move in parallel in the mounting ring 19 by the limitation of the clamping block 23 and can not rotate, meanwhile, the inner ring of the mounting ring 19 and the mounting groove 26 are not circular, therefore, the mounting ring 19 can not rotate in the mounting groove 26, the second clamping tooth 25 on the nut can synchronously extrude the first clamping tooth 24 when the flange screw 11 rotates to extrude the gland 13, the first latch 24 is extruded and then retracted into the mounting ring 19 together with the top ring 22, when the first latch 24 and the top ring 22 are retracted to a certain extent, the first latch 24 and the second latch 25 are clamped together, meanwhile, the flange screw 11 does not continuously rotate to extrude the gland 13, the mounting ring 19 and the top ring 22 are internally provided with a plurality of springs 20, the springs 20 can generate a supporting force, and the supporting force drives the first latch 24 to be tightly clung between the teeth of the second latch 25 through the top ring 22, so that a nut of the flange screw 11 can be firmly clamped, and an additional locking force is provided. The locking mechanism can effectively prevent the flange screw 11 from loosening caused by vibration, impact or temperature change and other factors;
In order to avoid that when a pump conveys corrosive media, the threads lose locking force due to the fact that the media contact with the threads, a first sealing ring 15 is arranged on a gland 13, a second sealing ring 17 is arranged on a flange screw 11, the first sealing ring 15 and the second sealing ring 17 are generally sealed by O-shaped rings, a corresponding sealing groove 14 is arranged in a counter bore 9 of the gland 13 for installing the flange screw 11 so as to place the first sealing ring 15, the flange screw 11 penetrates through a through hole 18 formed in the gland 13, and the first sealing ring 15 is compressed through connection with a locking steel wire screw sleeve 12 to form axial sealing to prevent leakage. The nut of the flange screw 11 is provided with a corresponding second sealing groove 16 in the through hole 18, radial gaps 10-20 between the counter bore 9 and the gland 13 are formed, the counter bore 9 and the sealing groove 14 of the gland 13 are matched with the first sealing ring 15 to realize radial sealing so as to prevent leakage, the through hole 18 and the second sealing groove 16 of the flange screw 11 are matched with the second sealing ring 17 to realize radial sealing so as to prevent leakage, the pump cover 2 is in butt joint with the clamping groove 3 of the pump body 1 through the clamping strip 4, so that the positioning and mounting effects are achieved, and meanwhile, the third sealing ring 5 is arranged in the clamping groove 3 so as to increase the tightness of the pump body 1.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the invention (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a structure for locking gland of rotor for pump, includes pump body (1), main shaft (6), countershaft (7), its characterized in that:
The main shaft (6) and the auxiliary shaft (7) are arranged in the pump body (1), the parts of the main shaft (6) and the auxiliary shaft (7) which are positioned in the pump body (1) are connected with a rotor (8) through keys, screw holes (10) are formed in one ends of the main shaft (6) and the auxiliary shaft (7), and a counter bore (9) is formed in one side of the rotor (8);
a gland mechanism is arranged in the screw hole (10) and the counter bore (9) and is used for fixing the rotor with the main shaft (6) and the auxiliary shaft (7);
The gland mechanism comprises a gland (13) arranged inside a counter bore (9), and further comprises a locking type steel wire screw sleeve (12) arranged inside a screw hole (10), a through hole (18) is formed in one side of the gland (13), a flange screw (11) is movably connected inside the through hole (18), a second latch (25) is arranged on one side of a nut of the flange screw (11), a mounting ring (19), a spring (20), a top ring (22) and a first latch (24) are arranged inside the through hole (18), one end of the flange screw (11) is connected with the locking type steel wire screw sleeve (12), the flange screw (11) is connected with the locking type steel wire screw sleeve (12) and simultaneously extrudes the first latch (24) through the second latch (25), and the spring (20) drives the first latch (24) and the second latch (25) to be locked through the top ring (22) to provide additional locking force.
2. The structure of the rotor anti-loose gland for pumps according to claim 1, wherein: the locking type steel wire threaded sleeve (12) is in threaded connection with the screw hole (10), and the gland (13) is movably connected with the counter bore (9).
3. The structure of the rotor anti-loose gland for pumps according to claim 1, wherein: one end of the flange screw (11) is in threaded connection with a locking steel wire screw sleeve (12) in the screw hole (10).
4. The structure of the rotor anti-loose gland for pumps according to claim 1, wherein: the mounting groove (26) is formed in one side of the inside of the through hole (18), the mounting ring (19) is movably connected with the mounting groove (26), the top ring (22) is slidably connected with the inner wall of the mounting ring (19), and the spring (20) is arranged between the mounting ring (19) and the top ring (22).
5. The structure of the rotor anti-loose gland for pumps according to claim 1, wherein: the side wall of the top ring (22) is provided with a plurality of clamping blocks (23), a plurality of limiting grooves (21) are formed in the position, close to the clamping blocks (23), of the mounting ring (19) in a penetrating mode, the clamping blocks (23) are matched with the limiting grooves (21), and a clamping tooth I (24) is arranged on one side of the top ring (22).
6. The structure of the rotor anti-loose gland for pumps according to claim 1, wherein: the side wall of the gland (13) is provided with a sealing groove (14), and a first sealing ring (15) is arranged in the sealing groove (14).
7. The structure of the rotor anti-loose gland for pumps according to claim 1, wherein: and a second sealing groove (16) is formed in the other side of the nut of the flange screw (11), and a second sealing ring (17) is arranged in the second sealing groove (16).
8. The structure of the rotor anti-loose gland for pumps according to claim 1, wherein: one side of the pump body (1) is connected with a pump cover (2) through a bolt, and a clamping groove (3) is formed in one side, close to the pump cover (2), of the pump body (1).
9. The structure of the rotor anti-loose gland for pumps according to claim 8, wherein: the novel pump is characterized in that a third sealing ring (5) is arranged inside the clamping groove (3), a clamping strip (4) is arranged at the position, corresponding to the clamping groove (3), of the pump cover (2), and the clamping strip (4) is matched with the clamping groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410509919.7A CN118110667A (en) | 2024-04-26 | 2024-04-26 | Structure of rotor anti-loosening gland for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410509919.7A CN118110667A (en) | 2024-04-26 | 2024-04-26 | Structure of rotor anti-loosening gland for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118110667A true CN118110667A (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410509919.7A Pending CN118110667A (en) | 2024-04-26 | 2024-04-26 | Structure of rotor anti-loosening gland for pump |
Country Status (1)
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| CN (1) | CN118110667A (en) |
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