CN214788204U

CN214788204U - Engine water pump

Info

Publication number: CN214788204U
Application number: CN202023144193.8U
Authority: CN
Inventors: 刘治平; 何翠琳
Original assignee: Mianyang Xinchen Power Machinery Co Ltd
Current assignee: Mianyang Xinchen Power Machinery Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-11-19
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an engine water pump, including the casing that has the water pump cavity, airtight rotation is connected with the pivot in the casing, and the impeller is installed to the part that the pivot is located the water pump cavity, is equipped with the aqua storage tank in inside overflow hole of intercommunication casing and intercommunication overflow hole on the casing, the impeller includes the connecting axle with the pivot installation, and the outer wall of connecting axle is equipped with a plurality of blades along its circumference, the connecting axle reaches the top cover of blade has the apron, the connecting axle apron reaches a plurality of blade integrated into one piece. The utility model discloses have and avoid forming the swirl between the roof of impeller and water pump cavity, reduce energy loss, improve the flow and the lift of water pump, and then improve the work efficiency of water pump.

Description

Engine water pump

Technical Field

The utility model relates to an internal-combustion engine technical field particularly, relates to an engine water pump.

Background

The existing engine water pump product is not provided with overflow holes for overflowing air or cooling liquid, so that the engine can flow out of a small amount of cooling liquid through the water pump under partial working conditions, and the engine water pump belongs to the normal state of the water pump. Due to the characteristic of the engine water pump that the water pump overflows, water marks can be generated at the overflow part of the engine water pump for a long time. When a vehicle arrives at a maintenance station for maintenance or repair, the maintenance station finds that water marks exist outside the water pump, and possibly misjudges that the water pump has water leakage faults, so that the water pump is wrongly replaced, and the correct judgment and correct maintenance operation of maintenance personnel are influenced.

The patent with the granted publication number of 'CN 203892200U' discloses an engine water pump with a water storage tank, which well solves the problems, however, the two ends of the impeller in the patent are open, vortex is easily formed between the upper end of the impeller and the top wall of the cavity of the water pump, the energy loss is large, the flow and the lift of the water pump are less, and the working efficiency of the water pump is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engine water pump, it has and avoids forming the swirl between the roof of impeller and water pump cavity, reduces energy loss, improves the flow and the lift of water pump, and then improves the work efficiency of water pump.

The utility model discloses a following technical scheme realizes:

the utility model provides an engine water pump, is connected with the pivot including the casing that has the water pump cavity, airtight rotation in the casing, and the impeller is installed to the part that the pivot is located the water pump cavity, is equipped with the inside overflow hole of intercommunication casing and the aqua storage tank in intercommunication overflow hole on the casing, the impeller includes the connecting axle with the pivot installation, and the outer wall of connecting axle is equipped with a plurality of blades along its circumference, the connecting axle reaches the top cover of blade has the apron, the connecting axle apron and a plurality of blade integrated into one piece.

Optionally, the bottom outer edges of a plurality of said blades are covered with a cover ring.

Optionally, the inner edge of the cover ring is provided with an axially arranged boss ring, and a plurality of the blades are provided with abutting parts abutting against the inner wall of the boss ring.

Optionally, the connecting shaft, the cover plate, the plurality of blades, the cover ring and the boss ring are integrally formed.

Optionally, the cover plate is provided with a plurality of balance holes penetrating through the cover plate.

Optionally, an opening communicated with the outside of the shell is formed in the end portion of the water storage tank, and a bowl-shaped plug used for plugging the opening is arranged at the opening.

Optionally, a through hole communicated with the outside of the shell is formed in the side surface of the water storage tank.

Optionally, the interior of the reservoir is filled with a sponge.

Optionally, the impeller is made of plastic.

The utility model discloses following advantage and beneficial effect have at least: the utility model stores the slightly leaked cooling liquid in the water storage tank through the overflow holes, and evaporates the engine when the engine is at high temperature, thereby avoiding the water leakage fault caused by the generation of leakage marks and reducing improper maintenance; and on this basis, the impeller includes the connecting axle with the pivot installation, and the outer wall of connecting axle is equipped with a plurality of blades along its circumference, and the connecting axle reaches the top of blade covers there is the apron, through the apron that sets up, can avoid forming the swirl between the roof of impeller and water pump cavity, has reduced energy loss, has improved the flow and the lift of water pump, and then has improved the work efficiency of water pump. In addition, the connecting shaft, the cover plate and the plurality of blades are integrally formed, so that the overall strength of the impeller is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is an exploded schematic view of an engine water pump according to a first embodiment;

FIG. 2 is a cross-sectional view of the housing according to the first embodiment;

FIG. 3 is a schematic structural diagram of an impeller according to a first embodiment;

FIG. 4 is a schematic structural view of an impeller according to a second embodiment;

icon: the water pump comprises a flange plate 1, a shaft coupling bearing 2, a bowl-shaped plug 3, a shell 4, a water pump cavity 41, an overflow hole 42, a water storage tank 43, a water seal 5, an impeller 6, a connecting shaft 61, a blade 62, a cover plate 63, a cover ring 64, a boss ring 65, a butt joint part 66, a balance hole 67, a gasket 7, a sealing plate 8, a bolt 9 and a rotating shaft 10.

Detailed Description

Example one

As shown in fig. 1-3, an engine water pump comprises a housing 4 having a water pump cavity 41, a rotating shaft 10 is hermetically and rotatably connected in the housing 4, an impeller 6 is mounted on a portion of the rotating shaft 10 located in the water pump cavity 41, as in the prior art, a shaft coupling bearing 2 is arranged between the rotating shaft 10 and the housing 4 to reduce friction force caused by transmission, a flange 1 is mounted at the top end of the rotating shaft 10 and used for mounting a water pump pulley to drive the engine water pump to operate, and a water seal 5 is arranged between the top of the impeller 6 and the rotating shaft 10; a gasket 7 and a sealing plate 8 are connected to the bottom of the case 4 by bolts 9.

Be equipped with the inside overflow hole 42 of intercommunication casing 4 and the aqua storage tank 43 of intercommunication overflow hole 42 on casing 4, the tip of aqua storage tank 43 is equipped with the outside opening of intercommunication casing 4, the opening part is equipped with and is used for shutoff open-ended bowl type stopper 3, the side of aqua storage tank 43 is equipped with the outside through-hole of intercommunication casing 4, the concrete mode of setting of aqua storage tank 43 and overflow hole 42 is the same with prior art, this is no longer repeated here, can store the coolant liquid of little seepage in aqua storage tank 43 through the overflow hole 42 that sets up, treat that the engine evaporates it when high temperature, thereby can not be because of producing the leak trace and misjudged as the fault of leaking, improper maintenance has been reduced.

In another embodiment of the present invention, the water storage tank 43 is filled with sponge, which can absorb the coolant overflowing from the overflow hole 42 and evaporate the coolant when the engine is at high temperature, so that the water leakage fault is not determined by mistake due to the generation of leakage trace, and the improper maintenance is reduced.

In this embodiment, impeller 6 includes connecting axle 61 with pivot 10 installation, the outer wall of connecting axle 61 is equipped with a plurality of blades 62 along its circumference, specifically, the quantity of blade 62 is six, and every blade 62 is helical structure, the top of connecting axle 61 and blade 62 covers has apron 63, through the apron 63 that sets up, can avoid forming the swirl between the roof of impeller 6 and water pump cavity 41, energy loss has been reduced, the flow and the lift of water pump have been improved, and then the work efficiency of water pump has been improved.

In this embodiment, the connecting shaft 61, the cover plate 63, and the six blades 62 are integrally formed, so that the overall strength can be improved, and the connecting shaft 61, the cover plate 63, and the six blades 62 can be formed by injection molding of plastics (such as PE plastics, PP plastics, PVC plastics, etc.), so that the overall strength is ensured and the overall weight is reduced.

In this embodiment, the cover plate 63 is provided with a plurality of balance holes 67 penetrating through the cover plate 63, specifically, the number of the balance holes 67 is three, and the balance holes 67 can reduce the axial force applied to the entire impeller 6, thereby maintaining the rotational balance of the entire impeller 6.

Example two

The difference between the first embodiment and the first embodiment is that the first embodiment is different from the specific structure of the impeller 6, the impeller 6 provided by the first embodiment is further improved on the basis of the first embodiment, as shown in fig. 4, the outer edge of the bottom of the six blades 62 is covered with the cover ring 64, so that the energy loss is further reduced, the flow rate and the lift of the water pump are improved, and further the working efficiency of the water pump is improved, the inner edge of the cover ring 64 is provided with the boss ring 65 which is axially arranged, the six blades 62 are provided with the abutting parts 66 which abut against the inner wall of the boss ring 65, and the strength between the blades 62 and the cover ring 64 is improved. The connecting shaft 61, the cover plate 63, the plurality of blades 62, the cover ring 64 and the boss ring 65 are integrally formed, namely the impeller 6 is integrally formed, the specific mode can be that the impeller is formed by plastic injection molding, and the overall weight is reduced while the overall strength of the impeller 6 is ensured.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. 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. The utility model provides an engine water pump, is including casing (4) that have water pump cavity (41), and airtight rotation is connected with pivot (10) in casing (4), and impeller (6) are installed to the part that pivot (10) are located water pump cavity (41), are equipped with aqua storage tank (43) of inside overflow hole (42) of intercommunication casing (4) and intercommunication overflow hole (42) on casing (4), impeller (6) include connecting axle (61) of installing with pivot (10), and the outer wall of connecting axle (61) is equipped with a plurality of blades (62) along its circumference, its characterized in that: the top of connecting axle (61) and blade (62) covers has apron (63), connecting axle (61), apron (63) and a plurality of blade (62) integrated into one piece.

2. The engine water pump of claim 1, wherein: the outer edges of the bottoms of the blades (62) are covered with cover rings (64).

3. The engine water pump of claim 2, wherein: the inner edge of the cover ring (64) is provided with a boss ring (65) which is arranged axially, and the plurality of blades (62) are provided with abutting parts (66) which abut against the inner wall of the boss ring (65).

4. The engine water pump of claim 3, wherein: the connecting shaft (61), the cover plate (63), the plurality of blades (62), the cover ring (64) and the boss ring (65) are integrally formed.

5. The engine water pump according to any one of claims 1 to 4, characterized in that: the cover plate (63) is provided with a plurality of balance holes (67) penetrating through the cover plate (63).

6. The engine water pump according to any one of claims 1 to 4, characterized in that: the end part of the water storage tank (43) is provided with an opening communicated with the outside of the shell (4), and the opening is provided with a bowl-shaped plug (3) used for plugging the opening.

7. The engine water pump of claim 6, wherein: and a through hole communicated with the outside of the shell (4) is formed in the side surface of the water storage tank (43).

8. The engine water pump according to any one of claims 1 to 4, characterized in that: the water storage tank (43) is filled with sponge.

9. The engine water pump according to any one of claims 1 to 4, characterized in that: the impeller (6) is made of plastic.