CN212838381U

CN212838381U - Pump convenient for assembling and disassembling impeller

Info

Publication number: CN212838381U
Application number: CN202021210769.3U
Authority: CN
Inventors: 蔡金峰; 李海尧; 李丽东; 应卓浪; 杨岩松; 田海川
Original assignee: Zhejiang Shimge Pump Co Ltd
Current assignee: Zhejiang Shimge Pump Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-30
Anticipated expiration: 2030-06-28

Abstract

The utility model relates to a pump convenient to impeller dismouting solves the problem that dismantles among the prior art or assembly impeller needs special frock to exist, the technical scheme of adoption: the impeller comprises a rotor shaft, and is characterized in that a boss is arranged in the center of the impeller, a shaft hole is arranged in the center of the boss, an internal thread is arranged in the shaft hole, the outer contour of the boss is hexagonal, an external thread is arranged at the impeller end of the rotor shaft, and the impeller end of the rotor shaft is inserted into the shaft hole and forms threaded connection through the internal thread and the external thread. The method has the following effects: set up the boss on the impeller, the outline of boss is hexagonal prism shape, when assembly or dismantlement impeller, can directly clamp with standard hexagonal sleeve or pliers and screw or loosen soon the operation, saves special frock, for the installation and the dismantlement of making things convenient for the impeller greatly, great improvement the efficiency of installation and dismantlement.

Description

Pump convenient for assembling and disassembling impeller

Technical Field

The utility model relates to a water pump especially relates to a pump convenient to impeller dismouting.

Background

The impeller in the water pump is usually fixed on the rotor shaft by adopting a threaded screwing mode, and due to the adoption of the screwing installation mode, compared with the traditional mode of tightly pressing and fixing the impeller by a nut gasket, although the nut and the gasket are omitted, the installation and the disassembly of the impeller fixed by adopting the threaded screwing mode all need to adopt special tools, the special tools clamp the blades and then screw or unscrew, and the installation and the disassembly of the impeller are still inconvenient.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned problem that prior art exists and provide a pump convenient to impeller dismouting, set up the boss on the impeller, the outline of boss is hexagonal prism shape, when assembly or dismantlement impeller, can directly clamp with standard hexagonal sleeve or pliers and screw or loosen soon the operation, saves special frock, greatly makes things convenient for the installation and the dismantlement of impeller, great improvement the efficiency of installation and dismantlement.

The above technical purpose of the present invention is mainly solved by the following technical solutions: pump convenient to impeller dismouting, including the pump casing, set up the impeller in the impeller intracavity of pump casing, set up the rotor subassembly in the motor intracavity of the pump body, set up the rotor shaft on the rotor subassembly, the impeller end of rotor shaft sets up the impeller, its characterized in that the center of impeller sets up the boss, the center of boss sets up the shaft hole, set up the internal thread in the shaft hole, the outline of boss is hexagonal prism shape, the impeller end of rotor shaft sets up the external screw thread, the impeller end of rotor shaft inserts the shaft hole to form threaded connection through internal thread and external screw thread. Set up the boss on the impeller, the outline of boss is hexagonal prism shape, when assembly or dismantlement impeller, can directly clamp with standard hexagonal sleeve or pliers and screw or loosen soon the operation, saves special frock, for the installation and the dismantlement of making things convenient for the impeller greatly, great improvement the efficiency of installation and dismantlement.

As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure:

in order to use the hexagonal sleeve conveniently and further facilitate installation and disassembly, the boss is arranged on one side far away from the motor cavity.

The impeller end of rotor shaft sets gradually slide bearing, mechanical seal and the impeller, set up sliding bearing seat on the pump casing, slide bearing sets up in sliding bearing seat, mechanical seal sets up in the impeller intracavity, set up the first oil passageway of leading on the slide bearing, the last second that sets up of sliding bearing seat leads the oil passageway, the first oil passageway and the second of leading leads oil passageway intercommunication, the first inner of leading the oil passageway with the rotor shaft cooperation, the second lead the outer end of oil passageway with motor chamber intercommunication. In order to reduce friction, a sliding bearing is adopted, and in order to facilitate installation, a sliding bearing seat and a pump shell are of an integral structure. In order to further reduce the friction between the bearing and the bearing housing, and to adequately lubricate and cool the mechanical seal,

the axial line of the first oil guide channel and the axial line of the second oil guide channel are in the same straight line, the first oil guide channel is obliquely arranged, the inner end of the first oil guide channel is axially close to the mechanical seal, and the outer end of the first oil guide channel is axially far away from the mechanical seal; the second leads oily passageway slope to set up, the second lead oily passageway the inner with the outer end intercommunication of first oily passageway of leading, the second lead oily passageway the outer end with the bottom cooperation in motor chamber.

The utility model discloses beneficial effect who has: set up the boss on the impeller, the outline of boss is hexagonal prism shape, when assembly or dismantlement impeller, can directly clamp with standard hexagonal sleeve or pliers and screw or loosen soon the operation, saves special frock, for the installation and the dismantlement of making things convenient for the impeller greatly, great improvement the efficiency of installation and dismantlement.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the impeller of the present invention.

Fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1-3, the pump convenient for the impeller to be disassembled comprises a pump housing 1, an impeller 2 arranged in an impeller cavity of the pump housing, a rotor assembly 3 arranged in a motor cavity 6 of the pump housing, a rotor shaft 31 arranged on the rotor assembly, an impeller end of the rotor shaft arranged on the impeller 2, a boss 21 arranged at the center of the impeller 2, a shaft hole 22 arranged at the center of the boss, an internal thread arranged in the shaft hole, the outer contour of the boss being hexagonal prism shaped, an external thread arranged at the impeller end of the rotor shaft 31, and an impeller end of the rotor shaft inserted into the shaft hole 22 and forming a threaded connection through the internal thread and the external thread. Set up the boss on the impeller, the outline of boss is hexagonal prism shape, when assembly or dismantlement impeller, can directly clamp with standard hexagonal sleeve or pliers and screw or loosen soon the operation, saves special frock, for the installation and the dismantlement of making things convenient for the impeller greatly, great improvement the efficiency of installation and dismantlement.

In order to facilitate the use of the hexagonal sleeve and further facilitate the installation and the disassembly, the boss 21 is arranged on one side far away from the motor cavity 6.

The impeller end of rotor shaft sets gradually slide bearing 4, mechanical seal 5 and impeller 2, set up sliding bearing seat 11 on the pump casing, slide bearing sets up in sliding bearing seat, mechanical seal 5 sets up in impeller cavity 7, set up first oil passageway 41 of leading on slide bearing 4, oil passageway 11-1 is led to the last second that sets up of sliding bearing seat, oil passageway intercommunication is led to first oil passageway and the second of leading, first inner with the rotor shaft cooperation of leading the oil passageway, the second lead the oil passageway the outer end with motor cavity intercommunication. In order to reduce friction, a sliding bearing is adopted, and in order to facilitate installation, a sliding bearing seat and a pump shell are of an integral structure. In order to further reduce the friction between the bearing and the bearing housing, and to adequately lubricate and cool the mechanical seal,

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. In the above embodiments, the present invention may be variously modified and changed. 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. Pump convenient to impeller dismouting, including the pump casing, set up the impeller in the impeller intracavity of pump casing, set up the rotor subassembly in the motor intracavity of the pump body, set up the rotor shaft on the rotor subassembly, the impeller end of rotor shaft sets up the impeller, its characterized in that the center of impeller sets up the boss, the center of boss sets up the shaft hole, set up the internal thread in the shaft hole, the outline of boss is hexagonal prism shape, the impeller end of rotor shaft sets up the external screw thread, the impeller end of rotor shaft inserts the shaft hole to form threaded connection through internal thread and external screw thread.

2. The pump of claim 1 wherein said boss is disposed on a side remote from said motor cavity.

3. The pump convenient for assembling and disassembling the impeller according to claim 1 or 2, wherein the impeller end of the rotor shaft is sequentially provided with a sliding bearing, a mechanical seal and the impeller, the pump housing is provided with a sliding bearing seat, the sliding bearing is arranged in the sliding bearing seat, the mechanical seal is arranged in the impeller cavity, the sliding bearing is provided with a first oil guide channel, the sliding bearing seat is provided with a second oil guide channel, the first oil guide channel is communicated with the second oil guide channel, the inner end of the first oil guide channel is matched with the rotor shaft, and the outer end of the second oil guide channel is communicated with the motor cavity.

4. The pump convenient for assembling and disassembling the impeller of claim 3, wherein the axes of the first oil guide channel and the second oil guide channel are collinear, the first oil guide channel is obliquely arranged, the inner end of the first oil guide channel is axially close to the mechanical seal, and the outer end of the first oil guide channel is axially far away from the mechanical seal; the second leads oily passageway slope to set up, the second lead oily passageway the inner with the outer end intercommunication of first oily passageway of leading, the second lead oily passageway the outer end with the bottom cooperation in motor chamber.