CN212898962U - Anti-reversing fastening device of slurry pump - Google Patents
Anti-reversing fastening device of slurry pump Download PDFInfo
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- CN212898962U CN212898962U CN202020766109.7U CN202020766109U CN212898962U CN 212898962 U CN212898962 U CN 212898962U CN 202020766109 U CN202020766109 U CN 202020766109U CN 212898962 U CN212898962 U CN 212898962U
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Abstract
The utility model relates to a sediment stuff pump prevents reversing fastener belongs to power equipment technical field. Comprising a fastening nut(2) Bearing (3) and fastening nut(4) The anti-return device comprises a check washer (5), a key groove (6), a main shaft (7) and a fastening shaft (8), wherein the surface of the fastening shaft (8) is provided with threads, the key groove (6) is axially arranged on the fastening shaft (8), and a fastening nut is arranged on the fastening nut(2) The side surface is provided with a through groove(12) In fastening the nut(4) Is provided with a through groove(13) The check washer (5) consists of an annular washer (14) and external snap teeth(9) External latch(10) And an inner latch (11). The utility model has the advantages of being simple in structure and convenient in installation, low cost, locking effectual, the effectual reversed problem of sediment stuff pump of having solved has improved the life of sediment stuff pump, provides the equipment guarantee for the long period steady operation of pump.
Description
Technical Field
The utility model relates to a sediment stuff pump prevents reversing fastener belongs to power equipment technical field.
Background
The blast furnace front slag slurry pump is positioned in a pit with the depth of 6 meters, granulated slag flushing water is seriously corroded, more particles exist, the water temperature is high, a check valve in front of the water pump is corroded, the sealing surface of the check valve is not tight, and water in the check valve reversely flows, so that the water pump is reversed; meanwhile, the position of the check valve is far away from the outlet of the pump, and a certain residual pressure is generated from the outlet of the pump to the pipeline of the check valve section, so that the possibility of reverse rotation of the pump is increased. At present, a slurry pump is locked and anti-loose at the driving end of a main shaft of a water pump by using a single round nut, and can meet the self-locking condition under the action of static load. However, when the water pump is impacted, vibrated or subjected to variable load, the connection can be automatically loosened, and the anti-loosening effect is poor, so that the water pump is reversed. In addition, due to the production process, the slurry pump needs to be started and stopped frequently, the water pump can be reversed due to the action of inertia when the water pump is stopped, the round nut is not firmly fastened, and the power and the space of the movement of the main shaft are multiplied. When the reverse rotation occurs and the middle impeller moves forward, the impeller and the shell are scraped and collided, the impeller is fixed at a certain position, but the shaft still rotates at a high speed, and the power during the reverse rotation is higher than the power during the forward rotation, so that the hub of the impeller is finally broken, parts such as bearings and the like are damaged, the main shaft is damaged, even related facilities such as process pipelines and valves are damaged, and the safe operation of a pump station is seriously influenced. Therefore, the slurry pump reverse rotation prevention fastening device needs to be designed, when the water pump is powered off or in an accident situation, the water pump can be effectively braked to reverse, and the disassembly and the assembly are convenient, so that the occurrence of reverse rotation accidents of the water pump is reduced, and the use efficiency and the safety of the water pump are improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a sediment stuff pump prevents to reverse fastener is provided, can effectively brake the water pump when water pump outage or unexpected condition and reverse, it is all more convenient to dismantle the installation to reduce the emergence that the water pump reversed the accident, improve the availability factor and the security of water pump.
The technical scheme of the utility model is that:
a slurry pump reverse rotation prevention fastening device comprises a fastening nutBearing and fastening nutCheck washer, keyway, main shaft, fastening shaft, the fastening shaft is one part of main shaft, is located between shaft coupling and the bearing assembly, and fastening shaft surface is provided with the screw thread, is provided with the keyway in fastening shaft axial, fastening nutFastening nutIs a nut with the same structure and a fastening nutFastening nutMatched with fastening shaft, the fastening nutThe side surface is provided with a through grooveIn fastening the nutIs provided with a through grooveThe check washer consists of an annular washer and external clamping teethExternal latchInner snap tooth, inner diameter of the ring washer matching with the fastening shaft, outer snap toothExternal latchThe inner clamping teeth are vertically arranged on the end face of the annular gasket, the inner clamping teeth are matched with the key grooves, and the outer clamping teeth are symmetrically arranged on the outer side of the annular gasketAnd through grooveMatched, external bayonetAnd through grooveAnd (4) matching.
The outer latchBending the ring washer by 20-40 degrees towards the central line direction of the ring washer and externally clamping the ring washerTowards the centre line of the ring washerAnd latchThe bending direction is opposite to the bending direction and the bending is 20-40 degrees.
The width of the key groove is 10-18 mm, and the length of the key groove is 20-40 mm.
The utility model has the advantages that: the utility model has the advantages of being simple in structure and convenient in installation, low cost, locking effectual, the effectual reversed problem of sediment stuff pump of having solved has improved the life of sediment stuff pump, provides the equipment guarantee for the long period steady operation of pump.
Drawings
FIG. 1 is a schematic view of the device of the present invention in use;
FIG. 2 is a schematic view of the main shaft of the device of the present invention;
FIG. 6 is a front view of a non-return washer of the device of the present invention;
FIG. 7 is a cross-sectional view of a non-return gasket of the device of the present invention;
FIG. 8 is a schematic view of the assembly of the device of the present invention;
FIG. 9 is a partially enlarged view of the device according to the present invention in use;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in the attached drawing, the slurry pump reverse rotation prevention fastening device comprises a fastening nut 2. Bearing 3, fastening nut 4. Non return packing ring 5, keyway 6, main shaft 7, fastening shaft 8 is a part of main shaft 7, is located between shaft coupling 1 and the assembly of bearing 3, and fastening shaft 8 surface is provided with the screw thread, is provided with keyway 6 at fastening shaft 8 axial, fastening nut 2, fastening nut 4 is a nut with the same structure, a fastening nut 2. Fastening nut 4 is matched with a fastening shaft 8, and a fastening nut 2 side surface is provided with a through groove 12 at the fastening nut 4 is provided with a through groove on the side surface 13, the check washer 5 consists of an annular washer 14 and external clamping teeth 9. External latch 10. An inner latch 11, an inner diameter of the ring washer 14 is matched with the fastening shaft 8, and an outer latch 9. External latch 10 are symmetrically arranged on the outer side of the annular gasket 14, the inner latch 11 is vertically arranged on the end surface of the annular gasket 14, the inner latch 11 is matched with the key groove 6, and the outer latch 9 and the through groove 12 matching, external cardTooth 10 and the through groove 13 are matched. The through groove 12. Through groove 13 are provided with 4. The outer latch 9. External latch 10 are provided with 3. The outer latch 9 is bent by 20 degrees towards the central line direction of the annular gasket 14 and is provided with an outer clamping tooth10-direction annular gasket 14 central line and latch 9 bending in the opposite direction and 20 degrees. The width of the key slot 6 is 12 mm, and the length is 28 mm.
When assembling, the fastening nut is firstly fastened2 is assembled on a fastening shaft 8, after the fastening shaft is screwed in place, a check washer 5 is assembled, an inner latch 11 is assembled in a key groove 6 of a main shaft 7 of a slurry pump, and a fastening nut is screwed in4, after screwing in placeExternal teeth of check washer 510 one of the teeth bent to snap into the fastening nut 2 through groove of outer wall 12 in a groove, the handle is externally clamped9 a tooth bent snap-in fastening nut 4 through groove of outer wall 13 in one of the grooves.
Nut fixed on nut 2. Fastening nut 4, a non-return gasket 5 is additionally arranged between the two nuts, double-nut locking is realized, simultaneously, secondary mechanical locking is completed by the clamping teeth 11 in the non-return gasket 5 and the key groove 6 of the main shaft 7 of the slurry pump, and the outer clamping teeth of the non-return gasket 59. External latch 10 will fix the nutFastening nutThe connection is an organic whole, so that the whole connection anti-loosening effect is more reliable. When the water pump is powered off or in an accident situation, the water pump can be effectively braked to be reversed, and the water pump can be conveniently disassembled and assembled, so that the occurrence of the water pump reversing accident is reduced, and the use efficiency and the safety of the water pump are improved.
The utility model has the advantages of being simple in structure and convenient in installation, low cost, locking effectual, the effectual reversed problem of sediment stuff pump of having solved has improved the life of sediment stuff pump, provides the equipment guarantee for the long period steady operation of pump.
Claims (5)
1. A slurry pump reverse rotation prevention fastening device is characterized by comprising a fastening nut(2) Bearing (3) and fastening nut(4) Check washer (5), keyway (6), main shaft (7), fastening shaft (8) are the partly of main shaft (7), are located between shaft coupling (1) and bearing (3) assembly, and fastening shaft (8) surface is provided with the screw thread, is provided with keyway (6) at fastening shaft (8) axial, fastening nut(2) Fastening nut(4) Is a nut with the same structure and a fastening nut(2) Fastening nut(4) Matched with a fastening shaft (8), and the fastening nut(2) The side surface is provided with a through groove(12) In fastening the nut(4) Is provided with a through groove(13) The check washer (5) consists of an annular washer (14) and external snap teeth(9) External latch(10) An inner latch (11), an annular washer (14) with an inner diameter matched with the fastening shaft (8), and an outer latch(9) External latch(10) Symmetrically arranged at the outer side of the annular gasket (14), an inner latch (11) is vertically arranged on the end surface of the annular gasket (14), the inner latch (11) is matched with the key groove (6), and an outer latch(9) And through groove(12) Matched, external bayonet(10) And through groove(13) And (4) matching.
4. The slurry pump anti-backup fastening device of claim 1, wherein the external latch(9) Is bent by 20 to 40 degrees towards the central line direction of the annular gasket (14) and is externally clamped(10) Towards the center line of the annular gasket (14) and the latch(9) The bending direction is opposite to the bending direction and the bending is 20-40 degrees.
5. The slurry pump anti-backup fastening device according to claim 1, wherein the key groove (6) has a width of 10 to 18 mm and a length of 20 to 40 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020766109.7U CN212898962U (en) | 2020-05-11 | 2020-05-11 | Anti-reversing fastening device of slurry pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020766109.7U CN212898962U (en) | 2020-05-11 | 2020-05-11 | Anti-reversing fastening device of slurry pump |
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Publication Number | Publication Date |
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CN212898962U true CN212898962U (en) | 2021-04-06 |
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CN202020766109.7U Active CN212898962U (en) | 2020-05-11 | 2020-05-11 | Anti-reversing fastening device of slurry pump |
Country Status (1)
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CN (1) | CN212898962U (en) |
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2020
- 2020-05-11 CN CN202020766109.7U patent/CN212898962U/en active Active
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