Main shaft impeller connecting structure of large pipeline pump
By designing a fit between the impeller connecting column and the main shaft sleeve groove in a large pipeline pump, and utilizing pressure-reducing components and torsion springs to disperse stress, combined with the design of push blocks and connecting plates, the stress problem caused by impeller load is solved, resulting in reduced wear and improved connection strength, thus ensuring the stability and performance of the pipeline pump.
Patent Information
- Application Number
- CN202423309945.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The impeller of a large pipeline pump is heavily loaded, resulting in high stress and severe wear at the connection between the drive shaft and the impeller, which affects the performance and stability of the pipeline pump.
The impeller bladeless side connecting column is used to fit with the sleeve groove in the main shaft. Stress is dispersed by pressure reducing components and torsion springs. Wear is reduced by the design of push block, connecting plate and connecting groove, and the connection strength is enhanced by the fit between tooth groove and end tooth.
It effectively disperses stress, reduces wear, extends the service life of the connection structure, improves torsional resistance, enhances connection strength, and ensures the performance and stability of the pipeline pump.
Smart Images
Figure CN223608909U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline pump equipment technical field, concretely relates to a large -scale pipeline pump main shaft impeller connecting structure. BACKGROUND
[0002] Pipeline pump usually adopts key connection to fix its drive main shaft and impeller, the specific practice is that the corresponding keyway and keyhole are processed on the main shaft and impeller respectively to realize the connection, however, for large -scale pipeline pump, because impeller load is heavy, when driving main shaft drives impeller to rotate, it will produce greater stress, this high stress state not only will lead to the abrasion of connecting part aggravation, still can influence the overall performance and stability of pipeline pump, for this, we propose a large -scale pipeline pump main shaft impeller connecting structure. SUMMARY
[0003] (I) the technical problem solved
[0004] In view of the deficiencies of prior art, the utility model provides a large -scale pipeline pump main shaft impeller connecting structure to solve the above -mentioned problems existing in prior art.
[0005] (II) technical scheme
[0006] To realize above -mentioned purpose, the utility model is realized through the following technical scheme: a large -scale pipeline pump main shaft impeller connecting structure, including impeller and the main shaft connected with the non -blade side of impeller, the non -blade side of impeller is equipped with the connecting column connected with the main shaft, the main shaft is opened in and is equipped with the sleeve joint groove in the outside of connecting column, the sleeve joint groove is equipped with a plurality of push block in the circumferential direction, the connecting column is equipped with the pressure relief piece matched with push block, the pressure relief piece rotation is arranged in connecting column, and is connected with connecting column through torsional spring.
[0007] Further, the pressure relief piece includes a circular ring, the inner wall of the circular ring is connected with the one end of torsional spring away from connecting column, the outer wall of the circular ring is equipped with the connecting plate in the circumferential direction, the side away from the circular ring of connecting plate is equipped with the pressure relief block matched with push block, the connecting column is opened in and is equipped with the circular groove accommodating circular ring, both adapt to make circular ring rotate along the inner wall of circular groove, the connecting column is opened in and is equipped with the ring groove accommodating pressure relief block, so that pressure relief block can slide along ring groove, the connecting column is opened in and is equipped with the connecting groove communicating circular groove and ring groove, to accommodate connecting plate, the both sides of connecting plate and the side wall of connecting groove have the clearance for rotating between them.
[0008] Further, the center of circular groove is equipped with the positioning column connected with the one end of torsional spring away from circular ring.
[0009] Further, the side away from impeller of connecting column is opened in and is equipped with the insertion slot for the insertion of push block, the both sides of push block and the side wall of insertion slot have the clearance for rotating between them, the insertion slot and ring groove are communicated, so that push block can be inserted into ring groove.
[0010] Further, the connecting column is provided with a tooth groove on the side away from the impeller, and the sleeve slot is provided with an end tooth matched with the tooth groove.
[0011] Further, the connecting column is provided with an outward extending edge on the outer wall, and the sleeve slot is provided with an edge groove matched with the edge.
[0012] (Three) beneficial effects
[0013] The embodiment of the utility model provides a large -scale pipeline pump main shaft impeller connecting structure. Have the following beneficial effects:
[0014] 1, utilize the ingenious cooperation of pressure relief piece and torsional spring, effectively disperse and absorb the stress of push block, reduce abrasion significantly, prolong the service life of connecting structure.
[0015] 2, through the cooperation of connecting plate and connecting groove, after the pressure relief block rotates a certain distance, the connecting plate will abut against the connecting groove, can avoid torsional spring excessive deformation, help to prolong the service life of pressure relief piece.
[0016] 3, through the cooperation of tooth groove and end tooth, form end face tooth connecting structure, strengthen the connecting strength of main shaft and impeller, improve the torsional resistance of connecting structure. DRAWINGS
[0017] Figure 1 It is the whole structure perspective diagram of the utility model;
[0018] Figure 2 It is the whole structure explosion diagram of the utility model;
[0019] Figure 3 It is the whole structure explosion diagram of the utility model;
[0020] Figure 4 It is the whole structure explosion diagram of the utility model;
[0021] Figure 5 It is the whole structure explosion diagram of the utility model;
[0022] Figure 6 It is the whole structure explosion diagram of the utility model;
[0023] Figure 7 It is the whole structure explosion diagram of the utility model;
[0024] In the figure: 1, impeller; 11, connecting column; 111, round groove; 112, ring groove; 113, connecting groove; 114, positioning column; 115, insertion groove; 116, tooth groove; 117, along edge; 12, pressure relief piece; 121, circular ring; 122, connecting plate; 123, pressure relief block; 13, torsional spring; 2, main shaft; 21, sleeve groove; 22, push block; 23, end tooth; 24, along groove. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0026] Referring to the drawings Figures 1-7 A large pipeline pump main shaft impeller connecting structure, including impeller 1 and the main shaft 2 connected with the bladeless side of impeller 1, the bladeless side of impeller 1 is equipped with the connecting column 11 connected with the main shaft 2, the main shaft 2 is equipped with the sleeve groove 21 in the inside, to be sleeved in the outside of connecting column 11, the sleeve groove 21 is matched with the outer wall of connecting column 11, to ensure that the main shaft 2 can be stably sleeved in the outside of connecting column 11, the sleeve groove 21 is equipped with a plurality of push blocks 22 circumferentially, connecting column 11 is equipped with the pressure relief piece 12 matched with push block 22, the pressure relief piece 12 is rotatably arranged in connecting column 11, and is connected with connecting column 11 through torsional spring 13, when the main shaft 2 drives impeller 1 to rotate, push block 22 will first push pressure relief piece 12, at this moment, torsional spring 13 occurs elastic deformation, thereby effectively dispersing and absorbing the stress between push block 22 and pressure relief piece 12, reduces the abrasion, prolongs the service life of connecting structure, guarantees the overall performance and stability of pipeline pump.
[0027] In the embodiment, the pressure relief member 12 includes a circular ring 121, the inner wall of the circular ring 121 is connected to the end of the torsion spring 13 away from the connecting column 11, the outer wall of the circular ring 121 is circumferentially provided with a connecting plate 122, the side of the connecting plate 122 away from the circular ring 121 is provided with a pressure relief block 123 matched with the push block 22, the connecting column 11 is internally provided with a circular groove 111 accommodating the circular ring 121, the outer wall of the circular ring 121 is fitted to the inner wall of the circular groove 111, and the two are adapted to enable the circular ring 121 to rotate along the inner wall of the circular groove 111, the connecting column 11 is internally provided with an annular groove 112 accommodating the pressure relief block 123, so that the pressure relief block 123 can slide along the annular groove 112, facilitating pressure relief, the connecting column 11 is internally provided with a connecting groove 113 communicating the circular groove 111 and the annular groove 112, to accommodate the connecting plate 122, the two side edges of the connecting plate 122 have a gap for rotation between the side walls of the connecting groove 113, when the main shaft 2 drives the impeller 1 to rotate, the push block 22 will first push the pressure relief block 123 to move along the annular groove 112, at this time the torsion spring 13 is elastically deformed, when the pressure relief block 123 moves a certain distance, the connecting plate 122 will abut against the side wall of the connecting groove 113, at this time the pressure relief block 123 will not press the torsion spring 13, thereby effectively avoiding the performance degradation or shortening of the service life of the torsion spring 13 due to excessive deformation, prolonging the service life of the pressure relief member 12.
[0028] In the embodiment, the center of the circular groove 111 is provided with a positioning column 114 connected to the end of the torsion spring 13 away from the circular ring 121, facilitating stable operation of the torsion spring 13.
[0029] In the embodiment, the side of the connecting column 11 away from the impeller 1 is provided with an insertion groove 115 for insertion of the push block 22, the insertion groove 115 communicates with the annular groove 112, so that the push block 22 can be inserted into the annular groove 112, to ensure that the push block 22 can be smoothly inserted into the annular groove 112, the two side edges of the push block 22 have a gap for rotation between the side walls of the insertion groove 115, to ensure that the push block 22 can relatively rotate the pressure relief member 12 in the rotation process.
[0030] In the embodiment, the side of the connecting column 11 away from the impeller 1 is circumferentially provided with a tooth groove 116, the inner circumferential surface of the sleeve groove 21 is circumferentially provided with an end tooth 23 matched with the tooth groove 116, to form an end face tooth connection structure, thereby enhancing the connection strength of the main shaft 2 and the impeller 1 and improving the torsional resistance, the width of the tooth groove 116 is greater than the width of the end tooth 23, to leave a gap for rotation of the end tooth 23, to ensure that a space for pressure relief is left.
[0031] In the embodiment, the outer wall of the connecting column 11 is circumferentially provided with an outwardly extending edge 117, the inner circumferential surface of the sleeve groove 21 is circumferentially provided with an edge groove 24 matched with the edge 117, to further enhance the connection strength of the main shaft 2 and the impeller 1 and improve the torsional resistance, the width of the edge groove 24 is greater than the width of the edge 117, to leave a gap for rotation of the edge 117, to ensure that a space for pressure relief is left.
[0032] It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0033] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A large pipe pump main shaft impeller connecting structure, comprising an impeller (1) and a main shaft (2) connected with the bladeless side of the impeller (1), characterized in that: The impeller (1) is provided with a connecting column (11) connected with a main shaft (2) on the side without blades, a sleeve slot (21) is formed in the main shaft (2) to be sleeved on the outside of the connecting column (11), a plurality of push blocks (22) are circumferentially arranged in the sleeve slot (21), a pressure reducing piece (12) matched with the push blocks (22) is arranged in the connecting column (11), and the pressure reducing piece (12) is rotationally arranged in the connecting column (11) and connected with the connecting column (11) through a torsional spring (13).
2. A large pipe pump main shaft impeller connecting structure according to claim 1, characterized in that: The pressure reducing piece (12) comprises a circular ring (121), the inner wall of the circular ring (121) is connected with the end of the torsional spring (13) away from the connecting column (11), the outer wall of the circular ring (121) is circumferentially provided with a connecting plate (122), the side of the connecting plate (122) away from the circular ring (121) is provided with a pressure reducing block (123) matched with the push block (22), a circular groove (111) accommodating the circular ring (121) is formed in the connecting column (11), and the circular ring (121) is adapted to rotate along the inner wall of the circular groove (111); an annular groove (112) accommodating the pressure reducing block (123) is formed in the connecting column (11), so that the pressure reducing block (123) can slide along the annular groove (112); and a connecting groove (113) connecting the circular groove (111) and the annular groove (112) is formed in the connecting column (11) to accommodate the connecting plate (122), and the two side edges of the connecting plate (122) and the side walls of the connecting groove (113) have gaps for rotation.
3. A large pipe pump main shaft impeller connecting structure according to claim 2, characterized in that: A positioning column (114) connected with the end of the torsional spring (13) away from the circular ring (121) is arranged at the center of the circular groove (111).
4. A large pipe pump main shaft impeller connecting structure according to claim 2, characterized in that: A plug groove (115) for inserting the push block (22) is formed on the side of the connecting column (11) away from the impeller (1), the two side edges of the push block (22) and the side walls of the plug groove (115) have gaps for rotation, and the plug groove (115) is communicated with the annular groove (112) so that the push block (22) can be inserted into the annular groove (112).
5. A large pipe pump main shaft impeller connecting structure according to any one of claims 1-4, characterized in that: A tooth groove (116) is circumferentially formed on the side of the connecting column (11) away from the impeller (1), end teeth (23) matched with the tooth groove (116) are circumferentially arranged in the sleeve slot (21), and the width of the tooth groove (116) is greater than the width of the end teeth (23) to leave a gap for rotation of the end teeth (23).
6. A large pipe pump spindle impeller coupling structure as claimed in claim 5, characterized in that: An extension edge (117) extending outward is circumferentially arranged on the outer wall of the connecting column (11), and a groove (24) matched with the extension edge (117) is circumferentially arranged in the sleeve slot (21), and the width of the groove (24) is greater than the extension edge (117) to leave a gap for rotation of the extension edge (117).