CN210218207U

CN210218207U - Multi-angle transmission impeller for pump

Info

Publication number: CN210218207U
Application number: CN201920916118.7U
Authority: CN
Inventors: Yongxing Yu; 虞永兴; Yawei Shen; 沈亚伟; Huaizhi Liu; 刘怀志
Original assignee: Zhangjiagang Huatai Pump Valve Manufacturing Co Ltd
Current assignee: Zhangjiagang Huatai Pump Valve Manufacturing Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-03-31
Anticipated expiration: 2029-06-18

Abstract

The utility model relates to a polygonal transmission impeller for a pump, which comprises an impeller main body and a transmission shaft, wherein the transmission shaft is in a prism shape with a polygonal cross section; a hub used for being connected with the transmission shaft is arranged in the impeller main body along the direction of the central axis of the impeller main body; a sealing groove is formed on the inner wall of the hub along the axial direction of the hub; the sealing groove is matched with the transmission shaft, and the transmission shaft is clamped in the sealing groove. The utility model discloses multiangular transmission has greatly increased the transmission moment of torsion, improves the reliability and the life of product.

Description

Multi-angle transmission impeller for pump

Technical Field

The utility model relates to a pump technical field especially relates to a polygonal impeller transmission structure for pump.

Background

The pump is a machine for conveying liquid or pressurizing liquid, and is mainly structurally characterized in that an impeller is installed in a water pressing chamber of a pump body, a motor drives the impeller to rotate, the mechanical energy of the impeller is transferred and converted into the kinetic energy of the liquid, a water outlet is formed in the water pressing chamber along the tangential direction of liquid flow, the liquid is driven by the impeller and extruded to the water outlet, and then enters a pipeline along the water outlet, so that the liquid is conveyed and pressurized. The impeller is therefore the core component of the pump and is the main factor affecting the efficiency of operation.

The transmission between the conventional transmission shaft and the impeller hub is key transmission, the transmitted torque is small, the requirement cannot be met when large-torque transmission is needed, and the key transmission has low reliability and short service life of the impeller due to small torque.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a moment of torsion is bigger is used for multiangular transmission impeller of pump.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a polygonal transmission impeller for a pump, which comprises an impeller main body and a connecting shaft, wherein the connecting shaft is in a prism shape with a polygonal cross section; the impeller body is internally provided with a hub used for being connected with the connecting shaft along the direction of the central axis thereof; a sealing groove is formed on the inner wall of the hub along the axial direction of the hub; the sealing groove is matched with the connecting shaft, and at least part of the connecting shaft is clamped in the sealing groove.

Further, the impeller body includes blade and rim plate, the inside of rim plate has along the central axis direction wheel hub, the blade distributes along wheel hub's circumference, the blade with rim plate integrated into one piece.

Furthermore, the number of the blades is two or more, and the blades are arranged on the wheel disc in a staggered and equidistant mode.

Further, at least one overflowing channel is arranged on the wheel disc.

Furthermore, a sealing plate is arranged at one end of the hub, at least one threaded hole is formed in the sealing plate, a fastening bolt penetrates through the sealing plate and is connected with the connecting shaft, the head of the fastening bolt is embedded in the threaded hole, and the tail of the fastening bolt is connected into the connecting shaft.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a polygonal transmission impeller for pump because the transmission shaft is the cross section and is polygonal prism, the transmission shaft joint is in sealed recess, impeller polygonal transmission promptly, has greatly increased the transmission moment of torsion, improves the reliability and the life of product.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a perspective view of a multi-angle drive impeller for a pump according to one embodiment of the present invention;

FIG. 2 is a top plan view of a polygon drive impeller for the pump shown in FIG. 1;

FIG. 3 is a cross-sectional view of a multi-angle drive impeller for the pump shown in FIG. 1 (with the impeller body and drive shaft not installed);

FIG. 4 is a cross-sectional view of a multi-angle drive impeller for the pump shown in FIG. 1 (after the impeller body and drive shaft are mounted together);

FIG. 5 is a schematic view of a seal plate for the polygon drive impeller of the pump shown in FIG. 1;

fig. 6 is a sectional view of a connecting shaft of a polygonal driving impeller for a pump shown in fig. 1.

Wherein the reference numerals are as follows:

1. an impeller body; 3. A hub; 4. a sealing plate; 6. A connecting shaft main body; 7. a drive shaft; 8. Sealing the groove; 9. a blade; 10. a wheel disc; 11. an overflow channel; 12. a threaded hole; 13. and fastening the bolt.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 6, the polygonal transmission impeller for the pump comprises an impeller main body 1 and a connecting shaft, wherein the connecting shaft comprises a connecting shaft main body 6 and a transmission shaft 7 connected to one end of the connecting shaft main body 6, the transmission shaft 7 is a prism with a polygonal cross section, namely, the peripheral surface of the transmission shaft 7 is polygonal, the connecting shaft main body 6 is cylindrical, and the connecting shaft main body 6 and the transmission shaft 7 are integrally formed or welded; the inside of the impeller body 1 has a hub 3 for connection with a drive shaft 7 in the direction of its central axis; a sealing groove 8 is formed on the inner wall of the hub 3 along the axial direction; the sealing groove 8 is matched with the transmission shaft 7, and at least part of the transmission shaft 7 is clamped in the sealing groove 8.

The impeller body 1 comprises blades 9 and a wheel disc 10, the inner part of the wheel disc 10 is provided with a hub 3 along the direction of a central axis, the blades 9 are distributed along the circumferential direction of the hub 3, and the blades 9 and the wheel disc 10 are integrally formed.

The number of the blades 9 is two or more, and the blades 9 are arranged on the wheel disc 10 in a staggered and equidistant mode. The vanes 9 are pointed at the end adjacent the seal plate 4.

The wheel disc 10 is provided with at least one transfer channel 11, as shown in fig. 2, and in this embodiment there are two transfer channels 11.

One end of the hub 3 is provided with a sealing plate 4, the sealing plate 4 is provided with at least one threaded hole 12, a fastening bolt 13 penetrates through the sealing plate 4 to be connected with the transmission shaft 7, the head of the fastening bolt 13 is embedded in the threaded hole 12, and the tail of the fastening bolt 13 is connected in the transmission shaft 7. And the impeller main body 1 is connected with the transmission shaft through the fastening bolt 13, so that the connection is more stable, and the overall stability is improved.

In this embodiment, the transmission shaft 7 is a prism with a hexagonal cross section, the sealing plate 4 has three threaded holes 12, i.e., three fastening bolts 13, and the three fastening bolts 13 are respectively and uniformly connected in the transmission shaft 7 through the threaded holes 12, i.e., the embodiment is a hexagonal transmission. And the embodiment has two overflowing channels 11 which are symmetrically arranged, when the impeller works, the transmission shaft rotates to drive the impeller main body 1 to rotate, liquid is driven by the impeller main body 1, enters the channels between the blades 9 and rotates along with the impeller disc 10, and the liquid can enter the overflowing channels 11 and then enters the pipeline along the overflowing channels 11, so that the liquid is conveyed.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A multi-angle drive impeller for a pump, comprising: the impeller comprises an impeller main body and a transmission shaft, wherein the transmission shaft is in a prism shape with a polygonal cross section; the inner part of the impeller main body is provided with a hub used for being connected with the transmission shaft along the direction of the central axis thereof; a sealing groove is formed on the inner wall of the hub along the axial direction of the hub; the sealing groove is matched with the transmission shaft, and at least part of the transmission shaft is clamped in the sealing groove.

2. The polygon drive impeller for a pump of claim 1, wherein: the impeller main part includes blade and rim plate, the inside of rim plate has along the central axis direction wheel hub, the blade is followed wheel hub's circumference distributes, the blade with rim plate integrated into one piece.

3. The polygon drive impeller for a pump of claim 2, wherein: the number of the blades is two or more, and the blades are arranged on the wheel disc in an equally-divided mode according to the circumference.

4. The polygon drive impeller for a pump according to claim 2 or 3, wherein: at least one overflowing channel is arranged on the wheel disc.

5. The polygon drive impeller for a pump of claim 1, wherein: the hub is characterized in that a sealing plate is arranged at one end of the hub, at least one threaded hole is formed in the sealing plate, a fastening bolt penetrates through the sealing plate and is connected with the transmission shaft, the head of the fastening bolt is embedded in the threaded hole, and the tail of the fastening bolt is connected into the transmission shaft.