CN205423302U - Water pump - Google Patents

Abstract

The utility model discloses a water pump, include casing and the impeller of arranging this casing in, the casing has into water port and play water end (W. E. ) mouth, and have in the casing and intake the communicating inhalant canal of port, the impeller includes a plurality of blades of radially distributed, the impeller intake the terminal surface towards inhalant canal, play water end (W. E. ) mouth link up its characterized in that with the lateral part of impeller mutually: the horizontal cross -section of blade is streamlinedly. The utility model discloses a flow direction of rivers is complied with owing to adopt the streamlined blade to the impeller for water flowing direction keeps unanimous, guarantees that the rivers of impeller tip can be transported to the lateral part of impeller better, has prevented the appearance of rivers mixed flows, can improve the water pressure hoist capacity that water pump goes out the water end (W. E. ) mouth better, thereby be favorable to improving water pump's hydraulic efficiency.

Description

A kind of water pump

Technical field

This utility model belongs to pump technology field, a kind of water pump for automobile industry.

Background technology

In automobile industry, after automobile long-play, internal work parts produce substantial amounts of heat, need to utilize water pump to cool down.Existing water pump includes housing 1 ' and the impeller 2 ' being placed in housing 1 ', as shown in Figure 1, housing 1 ' has into water port and water outlet port, water inlet port connects with the intake tunnel in housing 1 ', water outlet port connects with the exhalant canal in housing 1 ', impeller 2 ' is connected with spreading out of housing 1 ' drive shaft outward, it is provided with belt wheel 3 ' on the outer end of drive shaft, the power from engine spindle is utilized to be rotated by belt drive belt wheel 3 ', thus drive impeller 2 ' to rotate in housing 1 ', cooling water is after water inlet port enters, under the effect of impeller 2 ', discharge from water outlet port.

Centrifugal water pump is generally used in existing water pump, i.e. cooling water discharging axially into from the lateral of impeller from impeller, therefore, it is low pressure at the intake tunnel of water pump, the end regions being i.e. in impeller in water pump is low pressure, it it is high pressure at the exhalant canal of water pump, the lateral region being i.e. in impeller in water pump is high pressure, and the impeller 2 ' of water pump uses the blade of lamellar to make in existing water pump, with continued reference to shown in Fig. 1, the manufacture method of impeller is, flat board is cut out multiple otch and forms multiple section, then section is folded upwardly to 90 degree and forms blade.But using this impeller, the mixed flow of current is serious, and hydraulic efficiency is low, the water side saliva pressure hoisting power of water pump is weak.

Utility model content

The technical problems to be solved in the utility model is the present situation for prior art, it is provided that a kind of water pump, it can improve the hydraulic pressure of water pump water outlet port largely, thus improve the hydraulic efficiency of water pump significantly.

The technical scheme that the above-mentioned technical problem of this utility model solution is used is: a kind of water pump, including housing and the impeller being placed in this housing, described housing has into water port and water outlet port, there is in housing the intake tunnel communicated with water inlet port, described impeller includes multiple blades of radial distribution, the water inlet end of impeller connects facing to intake tunnel, described water outlet port with the sidepiece of impeller, it is characterised in that: the horizontal cross-section of described blade is streamlined.

As improvement, the top fore-and-aft tilt of described blade, the most vertically, the upper angled structure of blade, for more hydraulic efficiency, coordinates the vertical structure of bottom, it is simple to the die sinking molding of blade in bottom.

Improve again, it is extended with first gear water ring and second gear water ring along intake tunnel direction on described impeller, the medial wall of first gear water ring laminating intake tunnel, described intake tunnel is formed the water-blocking groove suitable with second gear water ring, and the root of first gear water ring and second gear water ring is connected.This utility model is owing to being provided with drip ring and being provided with water-blocking groove on housing on impeller, cut off the direct effect in low pressure pool, impeller end and impeller sidepiece water under high pressure district, impeller sidepiece water under high pressure wants backwater to the low pressurized water district of impeller end, then have to flow through water-blocking groove, add the path of current, simultaneously, owing to the gap between water-blocking groove and drip ring is the least, it is difficult to current flow through, thus prevent the backwater effect that existing water pump commonly exists, ensure that the cooling water entered from water inlet port can flow out from water outlet port to greatest extent, substantially increase the volumetric efficiency of water pump.

Improve again, a step it is formed with on the medial wall of described intake tunnel, in the outer wall laminating of described first gear water ring and the sidewall of step, the medial wall of intake tunnel is concordant with the medial wall of first gear water ring, thus the impact that the water come in reducing intake tunnel is to impeller drip ring, reduce the interference effect of drip ring.

Improve again, the cell wall of described water-blocking groove is formed with inclined-plane, consequently facilitating impeller drip ring is installed in water-blocking groove.

Improve again, described wheel bottom is formed with a pallet, through hole is had in the middle of this pallet, the card of pallet is from intermediate elevation to periphery wall lower cambered surface transition, and the bottom of blade fits in card, on the one hand, pallet plays and prevents water penetration from entering in the bearing block driving wheel rotation, on the other hand, pallet can also coordinate the blade guide effect to current so that water can throw away along pallet along the sidepiece of blade after flowing to the effect of blade.

Improve again, described housing includes upper shell and lower house, described upper shell and lower house are bolted to connection, opposite sides at lower house is provided with the first hole, location, upper shell is provided with the second location hole corresponding with the first hole, location, it is provided with alignment pin between the first hole, location and the second hole, location, described bolt passes alignment pin, realize in the drip ring of impeller inserts the water-blocking groove of housing and be capable of the rotation of impeller, need the highest machining accuracy and matching requirements, by arranging hole, location and alignment pin, after upper shell and lower house are installed and are put in place, the drip ring of impeller also is able to be installed on as requested water-blocking groove, thus reduce the installation difficulty of water pump.

Compared with prior art, owing to the utility model has the advantage of: cooling water is after the water inlet port of water pump enters, flow through intake tunnel, effect through impeller, add the hydraulic pressure of cooling water, cooling water is flowed out after the sidepiece of impeller throws away the water outlet port of water pump, impeller of the present utility model is owing to using fairshaped blade, comply with the flow direction of current, flow direction is made to keep consistent, ensure that the current of impeller end can preferably be transported to the sidepiece of impeller, prevent the appearance of current mixed flow, can preferably improve the hydraulic pressure hoisting power of water pump water outlet port, thus be conducive to improving the hydraulic efficiency of water pump.It addition, in further scheme, the upper design of blade is become fore-and-aft tilt, bottom is designed to the most vertically, and the upper angled structure of blade is conducive to further increasing water pump water force efficiency, coordinates the vertical structure of bottom, it is easy to the die sinking molding of blade, thus reduces the manufacture of impeller.

Accompanying drawing explanation

Fig. 1 is the structural representation of existing water pump；

Fig. 2 is the structural representation of water pump in this utility model embodiment；

Fig. 3 is the decomposition texture schematic diagram of water pump in this utility model embodiment；

Fig. 4 is the structural representation (band pallet) of impeller in Fig. 3；

Fig. 5 is the decomposition texture schematic diagram of Fig. 4；

Fig. 6 is Fig. 5 structural representation in the other directions；

Fig. 7 is the partial enlarged drawing in Fig. 2 at A.

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.

As Fig. 2 is to shown in 7, and the water pump in this enforcement, including housing 1, impeller 2, alignment pin 5, bolt 6, drive shaft 4, belt wheel 3 etc..

nullWherein，Housing 1 includes upper shell 11 and lower house 12，Upper shell 11 and lower house 12 connect by bolt 6 is fixing，It is provided with sealing ring between the connecting end surface of upper shell 11 and lower house 12，Have on upper shell 11 into water port 113 and water outlet port 114，There is on upper shell 11 intake tunnel 111 communicated with water inlet port 113 and the outlet pipe 112 communicated with water outlet port 114 simultaneously，A cavity volume it is formed with between upper shell 11 and lower house 12，Impeller 2 and being placed in this cavity volume，Impeller 2 includes multiple blades 21 of radial distribution，Blade 21 entirety is streamlined，Fairshaped blade 21 is relative to the more enough effects better adapting to current of the water pump blade being currently used for automobile，The discharge pressure of bigger water outlet port 114，Improve the hydraulic efficiency of water pump；The top fore-and-aft tilt of blade 21 further, bottom is the most vertically, the upper angled structure of blade 21 is for more hydraulic efficiency, coordinate the vertical structure of bottom, it is easy to the die sinking molding of blade 21, the drainage trough 121 being connected with this cavity volume it is formed with on lower house 12, outlet pipe 112 is connected to above drainage trough 121, intake tunnel 111 is longitudinally arranged, the end face of impeller 2 is towards intake tunnel 111, drainage trough 121 connects with the sidepiece of impeller 2, it is extended with at least one drip ring along intake tunnel 111 direction on impeller 2, the water-blocking groove suitable with this drip ring it is formed with on intake tunnel 111, drip ring rotates with impeller 2 in water-blocking groove.Drive shaft 4 is placed in lower house 12, one end of drive shaft 4 connects impeller 2, the other end of drive shaft 4 stretches out lower house 12, the other end in drive shaft 4 connects belt wheel 3, utilizing the power from engine spindle to be rotated by belt drive belt wheel 3, thus drive impeller 2 to rotate in housing 1, cooling water is after water inlet port 113 enters, under the effect of impeller 2, discharge from water outlet port 114.

Further, it is extended with first gear water ring 22 and second gear water ring 23 along intake tunnel 111 direction on impeller 2, first gear water ring 22 is fitted the medial wall of intake tunnel 111, second gear water ring 23 inserts in the water-blocking groove 116 in housing 1, the root of first gear water ring 22 and second gear water ring 23 is connected, by arranging multiple tracks drip ring and water-blocking groove can preferably improve the volumetric efficiency of water pump, but the increasing number of drip ring, then add machining accuracy and the installation difficulty of the guiding gutter of impeller 2 and housing 1, for this, this utility model takes volumetric efficiency into consideration, machining accuracy and installation difficulty, selection arranges first gear water ring 22 and second gear water ring 23.

Further, a step 115 it is formed with on the medial wall of intake tunnel 111, in the outer wall laminating of first gear water ring 22 and the sidewall of step 115, the medial wall of intake tunnel 111 is concordant with the medial wall of first gear water ring 22, thus the impact that the water come in reducing intake tunnel 111 is to impeller 2 drip ring, reduce the interference effect of drip ring.

For the ease of the assembling of impeller 2, first gear water ring 22, higher than second gear water ring 23, meanwhile, the cell wall of water-blocking groove 116 is formed with inclined-plane, consequently facilitating impeller 2 drip ring is installed in water-blocking groove 116.

Additionally, impeller 2 also includes a pallet 24, through hole is had in the middle of this pallet 24, the card of pallet 24 is from intermediate elevation to periphery wall lower cambered surface transition, and the bottom of blade 21 fits in card, on the one hand, pallet plays and prevents water penetration from entering in the bearing block driving impeller 2 rotation, on the other hand, pallet 24 can also coordinate the blade 21 guide effect to current so that water can throw away along pallet 24 along the sidepiece of blade 21 after flowing to the effect of blade 21.Pallet 24 and blade 21 are split part or the part that is formed in one, and use Split type structure, beneficially blade 212 and the molding of pallet 24；Use integrative-structure, improve the steadiness connected between blade 21 and pallet 24.

In addition, in order to reduce the installation difficulty of water pump, opposite sides at lower house 12 is provided with the first hole, location 122, upper shell 11 is provided with the second location hole corresponding with the first hole 122, location, being provided with alignment pin 5 between the first hole, location 122 and the second hole, location, bolt 6 is through alignment pin 5.Insert the water-blocking groove of housing 1 owing to realizing the drip ring of impeller 2 in and be capable of the rotation of impeller 2, need the highest machining accuracy and matching requirements, by arranging hole, location and alignment pin 5, after upper shell 11 and lower house 12 are installed and are put in place, the drip ring of impeller 2 also is able to be installed on as requested water-blocking groove, thus reduces the installation difficulty of water pump.

To sum up, cooling water is after the water inlet port 113 of water pump enters, flow through intake tunnel 111, effect through impeller 2, add the hydraulic pressure of cooling water, cooling water is flowed out after the sidepiece of impeller 2 throws away the water outlet port 114 of water pump, impeller 2 of the present utility model is owing to using fairshaped blade 21, comply with the flow direction of current, flow direction is made to keep consistent, ensure that the current of impeller 2 end can preferably be transported to the sidepiece of impeller, prevent the appearance of current mixed flow, can preferably improve the hydraulic pressure hoisting power of water pump water outlet port, thus be conducive to improving the hydraulic efficiency of water pump.

Claims (7)

1. a water pump, including housing (1) and the impeller (2) that is placed in this housing (1), described housing (1) has into water port (113) and water outlet port (114), there is in housing (1) intake tunnel (111) communicated with water inlet port (113), described impeller (2) includes multiple blades (21) of radial distribution, the water inlet end of impeller (2) is facing to intake tunnel (111), described water outlet port (113) connects with the sidepiece of impeller (2), it is characterized in that: the horizontal cross-section of described blade (21) is streamlined.

Water pump the most according to claim 1, it is characterised in that: the top fore-and-aft tilt of described blade (21), bottom is the most vertically.

Water pump the most according to claim 2, it is characterized in that: on described impeller (2), be extended with first gear water ring (22) and second gear water ring (23) along intake tunnel (111) direction, the medial wall of first gear water ring (22) laminating intake tunnel (111), being formed with the water-blocking groove (116) suitable with second gear water ring (23) on described intake tunnel (111), the root of first gear water ring (22) and second gear water ring (23) is connected.

Water pump the most according to claim 3, it is characterized in that: on the medial wall of described intake tunnel (111), be formed with a step (115), the outer wall laminating of described first gear water ring (22) is with on the sidewall of step (115), and the medial wall of intake tunnel (111) is concordant with the medial wall of first gear water ring (22).

Water pump the most according to claim 4, it is characterised in that: it is formed with inclined-plane on the cell wall of described water-blocking groove (116).

Water pump the most according to claim 5, it is characterized in that: described impeller (2) bottom has a pallet (24), through hole is had in the middle of this pallet (24), the card of pallet (24) fits in card to periphery wall lower cambered surface transition, the bottom of blade (21) from intermediate elevation.

Water pump the most according to claim 6, it is characterized in that: described housing (1) includes upper shell (11) and lower house (12), described upper shell (11) and lower house (12) connect by bolt (6) is fixing, opposite sides at lower house (12) is provided with the first hole, location (122), upper shell (11) is provided with the second location hole corresponding with the first hole, location (122), it is provided with alignment pin (5) between the first hole, location (122) and the second hole, location, described bolt (6) passes alignment pin (5).