CN220622161U - Detachable intermediate shaft type single-screw pump - Google Patents
Detachable intermediate shaft type single-screw pump Download PDFInfo
- Publication number
- CN220622161U CN220622161U CN202322276187.5U CN202322276187U CN220622161U CN 220622161 U CN220622161 U CN 220622161U CN 202322276187 U CN202322276187 U CN 202322276187U CN 220622161 U CN220622161 U CN 220622161U
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- China
- Prior art keywords
- intermediate shaft
- type single
- screw pump
- rotor
- single screw
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- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a detachable intermediate shaft type single-screw pump, which comprises a pump body, wherein a transmission shaft, an intermediate shaft and a rotor which are sequentially connected are arranged in the pump body; the end of the pump body is provided with a discharge body, the top of the pump body is provided with a suction chamber, the upper end of the suction chamber is of an opening structure, and the lower end of the suction chamber is communicated with the inside of the pump body; a shaft sealing part is arranged between one end of the transmission shaft and the inside of the pump body, the other end of the transmission shaft is connected with one end of the intermediate shaft through a first fixed key, the other end of the intermediate shaft is connected with one end of the rotor through a second fixed key, and the other end of the rotor is arranged in the discharge body. The utility model adopts the conical groove surface and the fixed key to carry out assembly and connection, thereby effectively improving the disassembly efficiency of the single-screw pump.
Description
Technical Field
The utility model relates to a single-screw pump, in particular to a detachable intermediate shaft type single-screw pump.
Background
The single screw pump belongs to a positive displacement rotor pump, has wide application range, and can be widely applied to industrial departments such as offshore platform engineering, petrochemical industry, shipping, electric power, mechanical hydraulic systems, food, papermaking, sugar production, military industry, sewage treatment and the like. The single screw pump has stable flow, small pressure pulsation, self-priming capability, low noise, high efficiency, long service life, small volume and reliable operation. The device has the outstanding advantages that vortex is not formed when the medium is conveyed, various mediums with wide viscosity range can be conveyed, and not only can lubricating or corrosive mediums with various viscosities be conveyed, but also non-Newtonian liquid with various viscosities can be conveyed, and also gas-liquid mixed conveying and solid-liquid mixed conveying can be realized. Many users need to disassemble and assemble the single-screw pump when using the single-screw pump, so that it is important to improve the disassembly and assembly efficiency of the single-screw pump.
The traditional cylindrical surface and hole assembly mode has higher requirement on the dimensional accuracy of the hole column, the direct influence of errors in size is that the gap between the hole and the shaft is too large after assembly or too tight after assembly, especially the disassembly and assembly are directly influenced by the latter, meanwhile, the situation of 'seizure' is likely to occur between the hole and the shaft along with long-time operation due to the action of friction force, so that the disassembly difficulty is greatly increased.
Disclosure of Invention
The utility model mainly solves the technical problems existing in the prior art, thereby providing the detachable intermediate shaft type single-screw pump which adopts the conical groove surface and the fixed key to carry out assembly and connection and effectively improves the disassembly efficiency of the single-screw pump.
The technical problems of the utility model are mainly solved by the following technical proposal:
the utility model provides a removable intermediate shaft type single screw pump, includes the pump body, installs transmission shaft, jackshaft and the rotor that connects gradually in the pump body, and the internally mounted of pump body has the stator, and the rotor is installed in the stator; the end of the pump body is provided with a discharge body, the top of the pump body is provided with a suction chamber, the upper end of the suction chamber is of an opening structure, and the lower end of the suction chamber is communicated with the inside of the pump body; a shaft sealing part is arranged between one end of the transmission shaft and the inside of the pump body, the other end of the transmission shaft is connected with one end of the intermediate shaft through a first fixed key, the other end of the intermediate shaft is connected with one end of the rotor through a second fixed key, and the other end of the rotor is arranged in the discharge body.
Further, the transmission shaft is fixedly connected with the intermediate shaft through a first bolt; the intermediate shaft is fixedly connected with the rotor through a second bolt; the first fixed key is a conical groove surface; the second fixing key is a conical groove surface.
Further, the tail end of the transmission shaft is provided with a first concave conical groove surface, a first bolt mounting hole and a first square cavity which are sequentially communicated from outside to inside; the inner peripheral surface of the first concave conical groove surface is provided with a first key groove; the end of the rotor is provided with a second concave conical groove surface, a second bolt mounting hole and a second square cavity which are communicated sequentially from outside to inside, and the inner peripheral surface of the second concave conical groove surface is provided with a second key groove.
Further, protruding cones are arranged at two ends of the intermediate shaft.
Further, the two ends of the intermediate shaft are provided with first convex conical surfaces, the inner circumferential surface of the first convex conical surfaces is provided with a first threaded hole, and the outer circumferential surface of the first convex conical surfaces is provided with a main key groove; the two ends of the intermediate shaft are provided with second convex conical surfaces, the inner circumferential surface of the second convex conical surfaces is provided with second threaded holes, and the outer circumferential surface of the second convex conical surfaces is provided with auxiliary key grooves.
By adopting the technical scheme, the detachable intermediate shaft type single-screw pump is loosened and loosened by means of the stress degree in the axial direction of the assembly process, and the end face is gently knocked by a copper hammer and other tools along the axial direction or in the opposite direction in the assembly and disassembly processes, and meanwhile, the design of the key further ensures that the two contact surfaces cannot slip. The jackshaft and transmission shaft and jackshaft and rotor adopt conical groove face and fixed key to assemble and link, have promoted the dismantlement efficiency of single screw pump effectively, simultaneously, the design of conical groove face can not lead to the condition such as spare part wearing and tearing or deformation because of frequent dismantlement, have fine application prospect in practical application.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a detachable intermediate shaft type single screw pump of the present utility model.
Fig. 2 is a schematic structural view of the transmission shaft according to the present utility model.
Fig. 3 is a schematic structural view of the rotor according to the present utility model.
Fig. 4 is a schematic structural view of a cardan joint intermediate shaft according to the present utility model.
Fig. 5 is a schematic view of the structure of the intermediate shaft using the flexible shaft according to the present utility model.
Fig. 6 is a schematic view of the connection structure of the transmission shaft, the intermediate shaft and the rotor according to the present utility model.
Fig. 7 is an exploded view of the drive shaft, intermediate shaft and rotor of the present utility model.
Description of the embodiments
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
As shown in fig. 1 to 7, a detachable intermediate shaft type single-screw pump comprises a pump body 12, wherein a transmission shaft 2, an intermediate shaft 5 and a rotor 9 which are sequentially connected are arranged in the pump body 12, a stator 10 is arranged in the pump body 12, and the rotor 9 is arranged in the stator 10; the end of the pump body 12 is provided with a discharge body 11, the top of the pump body 12 is provided with a suction chamber 6, the upper end of the suction chamber 6 is of an opening structure, and the lower end of the suction chamber 6 is communicated with the inside of the pump body 12; a shaft sealing part 1 is arranged between one end of the transmission shaft 2 and the inside of the pump body 12, the other end of the transmission shaft 2 is connected with one end of the intermediate shaft 5 through a first fixed key 4, the other end of the intermediate shaft 5 is connected with one end of the rotor 9 through a second fixed key 7, and the other end of the rotor 9 is arranged in the discharge body 11; the transmission shaft 2 is fixedly connected with the intermediate shaft 5 through a first bolt 3; the intermediate shaft 5 is fixedly connected with the rotor 9 through a second bolt 8; the first fixing key 4 is a conical groove surface; the second fixing key 7 is a conical groove surface.
As shown in fig. 2, the end of the transmission shaft 2 is provided with a first concave taper groove surface 23, a first bolt mounting hole 22 and a first square cavity 21 which are communicated sequentially from outside to inside; the inner peripheral surface of the first concave taper surface 23 is provided with a first key groove 24; the first square cavity 21 is used for installing a bolt, and the first key groove 24 is a key groove formed on a first concave conical groove surface 23 at the tail end of the transmission shaft 2.
As shown in fig. 3, the end of the rotor 9 is provided with a second concave taper groove surface 93, a second bolt mounting hole 92 and a second square cavity 91 which are communicated in sequence from outside to inside, and the inner peripheral surface of the second concave taper groove surface 93 is provided with a second key groove 94; the second square cavity 91 is used for installing a bolt, and the second key groove 94 is a key groove formed on a second concave taper surface 93 at the tail end of the transmission shaft 2.
As shown in fig. 4 and 5, protruding cones are disposed at two ends of the intermediate shaft 5, and the intermediate shaft of the single screw pump protected by the present utility model has two forms, one is connected by a universal joint, as shown in fig. 4, two ends of the intermediate shaft 5 are provided with first convex conical bodies 51, an inner circumferential surface of the first convex conical bodies 51 is provided with a first threaded hole 52, and an outer circumferential surface of the first convex conical bodies 51 is provided with a main key groove 53. Another is to use a flexible shaft, as shown in fig. 5, two ends of the intermediate shaft 5 are provided with second convex tapered surfaces 510, an inner circumferential surface of the second convex tapered surfaces 510 is provided with a second threaded hole 520, and an outer circumferential surface of the second convex tapered surfaces 510 is provided with a secondary key groove 530. The primary key groove 53 and the secondary key groove 54 are key grooves formed in a convex tapered surface.
According to the detachable intermediate shaft type single-screw pump, the intermediate shaft 5 and the transmission shaft 2 and the intermediate shaft 5 and the rotor 9 are assembled and linked by adopting the conical groove surfaces and the fixed keys, so that the problems of high disassembly difficulty, low disassembly efficiency and the like between the rotor 9 and the intermediate shaft 5 and between the intermediate shaft 5 and the transmission shaft 2 are well solved.
The tightness of the assembly of the detachable intermediate shaft type single-screw pump depends on the stress degree in the axial direction of the assembly process, and in the assembly and disassembly processes, only tools such as a copper hammer and the like are needed to lightly strike the end face along the axial direction or the opposite direction, and meanwhile, the design of the key further ensures that the two contact surfaces cannot slip.
The utility model is applied to the actual product, as shown in fig. 1, if disassembly is required, the specific steps are as follows:
the first step: disassembling the discharge body 11;
and a second step of: disassembling the stator 10;
and a third step of: detaching the suction chamber 6, as shown in fig. 6 after this step is completed;
fourth step: separating the transmission shaft 2, detaching the first bolt 3 by a tool through the first square cavity 21, after detaching the first bolt 3, holding the intermediate shaft 5 by one hand, knocking the end face of the left side of the transmission shaft 2 from left to right by a copper hammer along the axial direction by the other hand, and simultaneously, pulling the hand holding the intermediate shaft to the left by force along the axial direction to finish the separation of the transmission shaft;
fifth step: and separating the intermediate shaft 5 and the rotor 9, detaching the second bolt 8 by a tool through the second square cavity 91, after detaching the second bolt 8, holding the intermediate shaft 5 by one hand, and knocking the end face of the right side of the rotor 9 from right to left by the other hand along the axis direction by using a copper hammer, so that the separation of the intermediate shaft and the rotor can be completed.
After the above five steps are completed, the states of the rotor 9, the intermediate shaft 5 and the propeller shaft 2 are shown in fig. 7. And after the disassembly, related parts can be maintained, and the maintenance are carried out. The installation process is the reverse of the removal process.
Therefore, the intermediate shaft 5 is assembled and linked with the transmission shaft 2 and the intermediate shaft 5 and the rotor 9 by adopting the conical groove surface and the fixed key, so that the disassembly efficiency of the single-screw pump is effectively improved, and meanwhile, the design of the conical groove surface can not lead to the conditions of part abrasion or deformation and the like due to frequent disassembly, so that the single-screw pump has good application prospect in practical application.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (10)
1. The utility model provides a removable intermediate shaft type single screw pump, includes the pump body, installs transmission shaft, jackshaft and the rotor that connects gradually in the pump body, and the internally mounted of pump body has the stator, and the rotor is installed in the stator; the end of the pump body is provided with a discharge body, the top of the pump body is provided with a suction chamber, the upper end of the suction chamber is of an opening structure, and the lower end of the suction chamber is communicated with the inside of the pump body;
the method is characterized in that: a shaft sealing part is arranged between one end of the transmission shaft and the inside of the pump body, the other end of the transmission shaft is connected with one end of the intermediate shaft through a first fixed key, the other end of the intermediate shaft is connected with one end of the rotor through a second fixed key, and the other end of the rotor is arranged in the discharge body.
2. The removable intermediate shaft type single screw pump according to claim 1, wherein: the transmission shaft is fixedly connected with the intermediate shaft through a first bolt.
3. The removable intermediate shaft type single screw pump according to claim 1, wherein: the intermediate shaft is fixedly connected with the rotor through a second bolt.
4. The removable intermediate shaft type single screw pump according to claim 1, wherein: the first fixing key is a conical groove surface.
5. The removable intermediate shaft type single screw pump according to claim 1, wherein: the second fixing key is a conical groove surface.
6. The removable intermediate shaft type single screw pump according to claim 1, wherein: the tail end of the transmission shaft is provided with a first concave conical groove surface, a first bolt mounting hole and a first square cavity which are sequentially communicated from outside to inside; the inner peripheral surface of the first concave taper groove surface is provided with a first key groove.
7. The removable intermediate shaft type single screw pump according to claim 1, wherein: the end of the rotor is provided with a second concave conical groove surface, a second bolt mounting hole and a second square cavity which are communicated sequentially from outside to inside, and the inner peripheral surface of the second concave conical groove surface is provided with a second key groove.
8. The removable intermediate shaft type single screw pump according to claim 1, wherein: both ends of the intermediate shaft are provided with protruding cones.
9. The removable intermediate shaft type single screw pump according to claim 1, wherein: the both ends of jackshaft all are equipped with first convex conical surface body, and the inner peripheral surface of first convex conical surface body is equipped with first screw hole, and the outer peripheral surface of first convex conical surface body is equipped with main keyway.
10. The removable intermediate shaft type single screw pump according to claim 1, wherein: the two ends of the intermediate shaft are provided with second convex conical surfaces, the inner circumferential surface of the second convex conical surfaces is provided with second threaded holes, and the outer circumferential surface of the second convex conical surfaces is provided with auxiliary key grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322276187.5U CN220622161U (en) | 2023-08-24 | 2023-08-24 | Detachable intermediate shaft type single-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322276187.5U CN220622161U (en) | 2023-08-24 | 2023-08-24 | Detachable intermediate shaft type single-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622161U true CN220622161U (en) | 2024-03-19 |
Family
ID=90218010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322276187.5U Active CN220622161U (en) | 2023-08-24 | 2023-08-24 | Detachable intermediate shaft type single-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622161U (en) |
-
2023
- 2023-08-24 CN CN202322276187.5U patent/CN220622161U/en active Active
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