CN215370247U

CN215370247U - Dredge pump with powerful cutting function

Info

Publication number: CN215370247U
Application number: CN202121262481.5U
Authority: CN
Inventors: 杨仙国
Original assignee: Shanghai Wei Ying Fluid Equipment Co ltd
Current assignee: Shanghai Wei Ying Fluid Equipment Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-31
Anticipated expiration: 2031-06-07

Abstract

The utility model discloses a sewage pump with a powerful cutting function, which comprises: the casing, the lower part of casing is provided with the pump body and the pump body passes through fixed connection between bolt and the casing, the inside of casing is provided with the bottom opening part that drive shaft and drive shaft extend to the pump body, interior cutting device and interior cutting device pass through fixed connection between bolt and the drive shaft are installed to the end of drive shaft. The pump body is arranged at the lower part of the casing, the casing is fixedly connected with the pump body, the driving shaft is arranged in the casing, the bottom of the driving shaft extends to the opening at the bottom of the pump body, the inner cutting device is arranged at the bottom of the driving shaft, the outer cutting devices are arranged on two sides of the driving shaft, the cutting knife holder is arranged at the upper part of the outer cutting device, the cutting knife holder is fixed with the casing, the cutting effect and the cutting efficiency are ensured due to the arrangement of the two groups of cutting devices, meanwhile, the two groups of cutting devices are not connected with the impeller, and the damage probability of the impeller is greatly reduced.

Description

Dredge pump with powerful cutting function

Technical Field

The utility model relates to the technical field of sewage pumps, in particular to a sewage pump with a powerful cutting function.

Background

The sewage pump is a pump product which is connected with a motor and simultaneously submerged to work under liquid, and compared with a common horizontal pump or a vertical sewage pump, the sewage pump has compact structure and small occupied area. The installation and maintenance are convenient, the large-scale dredge pump is generally provided with an automatic coupling device to carry out automatic installation, and the installation and the maintenance are quite convenient. The continuous operation time is long. The sewage pump has the advantages that the pump and the motor are coaxial, the shaft is short, the rotating parts are light in weight, so that the load (radial direction) borne by the bearings is relatively small, and the service life is much longer than that of a common pump. The problems of cavitation damage, irrigation and water diversion and the like do not exist. Particularly, the latter point brings great convenience to operators. The vibration noise is small, the temperature rise of the motor is low, and the environment is not polluted.

Its cutting knife of current dredge pump is located the impeller inboard more to be connected with the impeller, long-time the use causes the impeller to damage easily, and cutting efficiency is slow and the effect is poor simultaneously. Therefore, a new technical solution needs to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sewage pump with a powerful cutting function, and solves the problems that the existing sewage pump is easy to damage an impeller due to long-time use, low in cutting efficiency and poor in effect because cutting knives are mostly positioned on the inner side of the impeller and connected with the impeller.

In order to achieve the purpose, the utility model provides the following technical scheme: a dredge pump with power cutting function, comprising: the utility model discloses a pump, the casing, the lower part of casing is provided with the pump body and the pump body passes through fixed connection between bolt and the casing, the inside of casing is provided with drive shaft and extends to the bottom opening part of the pump body, interior cutting device and interior cutting device pass through fixed connection between bolt and the drive shaft are installed to the end of drive shaft, the outside of interior cutting device is provided with the upper portion of external cutting device and is provided with the cutting blade holder, the upper portion of cutting blade holder is provided with wear ring, the casing is provided with the upper portion of oil tank and oil tank with the junction of the pump body and is provided with the lower bearing, the top of casing is provided with upper bearing and drive shaft and runs through and be connected between lower bearing and the upper bearing, the lower surface of drive shaft is provided with cutting impeller and the upper surface is provided with rotor core, rotor core's outside is provided with stator core.

In a preferred embodiment of the present invention, a lid is provided at the bottom of the oil tank, and a skeleton oil seal is provided at the bottom of the lid.

In a preferred embodiment of the present invention, a mechanical seal is disposed inside the oil tank and the mechanical seal and the drive shaft are in contact with each other.

In a preferred embodiment of the present invention, a terminal box is disposed on a side surface of the casing, and the terminal box is fixedly connected to the casing by a bolt.

As a preferred embodiment of the present invention, a handle is disposed on the top of the casing, and the handle and the casing are welded and fixed.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model is provided with a pump body at the lower part of a casing, the casing is fixedly connected with the pump body, a driving shaft is arranged in the casing, the bottom of the driving shaft extends to an opening at the bottom of the pump body, an inner cutting device is arranged at the bottom of the driving shaft, outer cutting devices are arranged at two sides of the driving shaft, a cutting knife holder is arranged at the upper part of the outer cutting device, the cutting knife holder is fixed with the casing, the two groups of cutting devices ensure the cutting effect and the cutting efficiency, and are not connected with an impeller, the damage probability of the impeller is greatly reduced, the lower surface of the driving shaft is provided with a cutting impeller, the upper surface of the driving shaft is provided with a rotor core, a stator core is arranged outside the rotor core, the arrangement ensures the rotation stability of the driving shaft, an oil tank is arranged at the joint of the casing and the pump body, a lower bearing is arranged at the joint of the driving shaft and the oil tank, and an upper bearing is arranged at the top of the casing, this arrangement ensures the stability of the drive shaft.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the present invention.

In the figure: 1. an internal cutting device; 2. an external cutting device; 3. a cutter seat; 4. a wear ring; 5. cutting the impeller; 6. a pump body; 7. framework oil seal; 8. mechanical sealing; 9. an oil tank; 10. a lower bearing; 11. a drive shaft; 12. a housing; 13. a handle; 14. an upper bearing; 15. a stator core; 16. a rotor core; 17. a junction box; 18. a cover body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a dredge pump with power cutting function, comprising: a housing 12, a pump body 6 is arranged at the lower part of the housing 12 and the pump body 6 is fixedly connected with the housing 12 through bolts, a driving shaft 11 is arranged in the housing 12 and the driving shaft 11 extends to the bottom opening of the pump body 6, an inner cutting device 1 is arranged at the tail end of the driving shaft 11 and the inner cutting device 1 is fixedly connected with the driving shaft 11 through bolts, an outer cutting device 2 is arranged outside the inner cutting device 1 and the upper part of the outer cutting device 2 is provided with a cutting knife holder 3, a wear-resisting ring 4 is arranged at the upper part of the cutting knife holder 3, the pump body 6 is arranged at the lower part of the housing 12 and the housing 12 is fixedly connected with the pump body 6, the driving shaft 11 is arranged inside the housing and the bottom of the driving shaft 11 extends to the opening at the bottom of the pump body 6, the inner cutting device 1 is arranged at the bottom of the driving shaft 11 and the outer cutting devices 2 are arranged at two sides of the housing 12, the upper part of the external cutting device 2 is provided with a cutting knife holder 3, the cutting knife holder 3 is fixed with a casing 12, the arrangement of two groups of cutting devices ensures the cutting effect and the cutting efficiency, and simultaneously is not connected with an impeller, the damage probability of the impeller is greatly reduced, the joint of the casing 12 and a pump body 6 is provided with an oil tank 9, the upper part of the oil tank 9 is provided with a lower bearing 10, the top of the casing 12 is provided with an upper bearing 14, a driving shaft 11 penetrates through the lower bearing 10 and is connected with the upper bearing 14, the lower surface of the driving shaft 11 is provided with a cutting impeller 5, the upper surface of the driving shaft 11 is provided with a rotor core 16, the outer part of the rotor core 16 is provided with a stator core 15, the lower surface of the driving shaft 11 is provided with the cutting impeller 5, the upper surface of the driving shaft is provided with a rotor core 16, the outer part of the rotor core 16 is provided with a stator core 15, and the arrangement ensures the rotation stability of the driving shaft 11, the oil tank 9 is arranged at the joint of the casing 12 and the pump body 6, the lower bearing 10 is arranged at the joint of the driving shaft 11 and the oil tank 9, and the upper bearing 14 is arranged at the top of the casing 12, so that the stability of the driving shaft 11 is ensured.

Further improved, as shown in fig. 1: the bottom of oil tank 9 is provided with lid 18 and the bottom of lid 18 is provided with skeleton oil blanket 7, and the leakproofness of oil tank 9 has been guaranteed in lid 18 cooperation skeleton oil blanket 7.

Further improved, as shown in fig. 1: the mechanical seal 8 is arranged on the inner side of the oil tank 9, the mechanical seal 8 is in contact with the driving shaft 11, and the arrangement of the mechanical seal 8 ensures the sealing property between the oil tank 9 and the driving shaft 11.

Further improved, as shown in fig. 1: the side of the casing 12 is provided with a junction box 17, the junction box 17 is fixedly connected with the casing 12 through a bolt, and the junction box 17 is positioned on the side of the casing 12 to facilitate the connection of a circuit.

Further improved, as shown in fig. 1: the top of the casing 12 is provided with a handle 13, the handle 13 and the casing 12 are welded and fixed, and the handle 13 is convenient for the sewage pump to take and place.

The utility model is provided with a pump body 6 at the lower part of a casing 12, the casing 12 is fixedly connected with the pump body 6, a driving shaft 11 is arranged in the casing, the bottom of the driving shaft 11 extends to an opening at the bottom of the pump body 6, an inner cutting device 1 is arranged at the bottom of the driving shaft 11, outer cutting devices 2 are arranged at two sides of the driving shaft, a cutter holder 3 is arranged at the upper part of the outer cutting device 2, the cutter holder 3 is fixed with the casing 12, the two groups of cutting devices ensure the cutting effect and the cutting efficiency, are not connected with an impeller at the same time, the damage probability of the impeller is greatly reduced, a cutting impeller 5 is arranged at the lower surface of the driving shaft 11, a rotor core 16 is arranged at the upper surface of the driving shaft 11, a stator core 15 is arranged outside the rotor core 16, the arrangement ensures the rotating stability of the driving shaft 11, and an oil tank 9 is arranged at the connection part of the casing 12 and the pump body 6, the arrangement of the lower bearing 10 at the junction of the drive shaft 11 and the oil tank 9 and the upper bearing 14 at the top of the housing 12 ensures the stability of the drive shaft 11.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dredge pump with powerful cutting function, its characterized in that: the method comprises the following steps: the pump body (6) is arranged at the lower portion of the machine shell (12), the pump body (6) is fixedly connected with the machine shell (12) through bolts, a driving shaft (11) is arranged inside the machine shell (12), the driving shaft (11) extends to the opening at the bottom of the pump body (6), an inner cutting device (1) and an inner cutting device (1) are installed at the tail end of the driving shaft (11) and are fixedly connected with the driving shaft (11) through bolts, an outer cutting device (2) is arranged outside the inner cutting device (1) and a cutting knife base (3) is arranged on the upper portion of the outer cutting device (2), a wear-resisting ring (4) is arranged on the upper portion of the cutting knife base (3), an oil tank (9) is arranged at the joint of the machine shell (12) and the pump body (6), a lower bearing (10) is arranged on the upper portion of the oil tank (9), an upper bearing (14) is arranged at the top of the machine shell (12), and the driving shaft (11) penetrates through the lower bearing (10) and the upper bearing (4) 14) The cutting impeller (5) is arranged on the lower surface of the driving shaft (11), the rotor core (16) is arranged on the upper surface of the driving shaft, and the stator core (15) is arranged outside the rotor core (16).

2. A dredge pump with powerful cutting function according to claim 1, characterized in that: the bottom of the oil tank (9) is provided with a cover body (18) and the bottom of the cover body (18) is provided with a framework oil seal (7).

3. A dredge pump with powerful cutting function according to claim 1, characterized in that: and a mechanical seal (8) is arranged on the inner side of the oil tank (9), and the mechanical seal (8) is in contact with the driving shaft (11).

4. A dredge pump with powerful cutting function according to claim 1, characterized in that: the side surface of the machine shell (12) is provided with a junction box (17), and the junction box (17) is fixedly connected with the machine shell (12) through a bolt.

5. A dredge pump with powerful cutting function according to claim 1, characterized in that: the top of the machine shell (12) is provided with a lifting handle (13), and the lifting handle (13) is welded and fixed with the machine shell (12).