CN206221364U - A kind of shell structure of water pump - Google Patents

Abstract

The utility model discloses a kind of shell structure of water pump, the main pump shell fastened including drive end bearing bracket and with drive end bearing bracket, the center of the pedestal of drive end bearing bracket is extended with column raised forward, the cylindric impeller cavity of open rearward end is provided with column, extend the water inlet pipe for constituting and being connected with impeller cavity before the leading section mediad of column, tangentially the outlet pipe connected with impeller cavity is provided with the cavity wall of impeller cavity, the substrate center of the main pump shell extends back opening cylindric rotor chamber forward, the periphery of substrate extends back and constitutes the tubular shell in surrounding rotor chamber, opening annular stator chamber backward is formed between the inwall of tubular shell and the outer wall in cylindrical rotor chamber.The utility model simple structure, low production cost, with practical value very high.

Description

A kind of shell structure of water pump

Technical field

The utility model is related to pump technology field, more particularly to a kind of shell structure of water pump.

Background technology

Its water inlet of water pump that the similar application such as washing machine field uses in the prior art is arranged on electricity mostly with delivery port Radially, this structure is not suitable for some has the application scenario that strict direction requires to use import and export to machine rotor axle, it is impossible to Meet the assembling demand of distinct device.In addition, water pump of the prior art uses the structure without rear pump shell, the stator of motor mostly Iron core and coil etc. are exposed outside, and the application scenario that this structure is not suitable for some bad environments uses.The day for announcing is 2014 December 3, notification number discloses a kind of long-life brushless direct-current water pump for the Chinese patent document of CN203978848U, its bag Pump case, drive end bearing bracket, rear end cap, rotor, stator and divider are included, stator is set in the bore of stator of pump case, and rotor passes through graphite bushing Set in the rotor chamber of pump case, and the cooling opening for making axle sleeve be exposed with the rotating shaft of rotor is provided with the bottom of the rotor chamber；Should Structure is provided with cooling opening in rotor chamber, and liquid can be allowed to be lubricated and cool down between axle sleeve and the rotating shaft of rotor, Frictional force and loss can be reduced, and then is increased the service life, reduce vibration, reduce noise, make pump working more stable.But The delivery port and water inlet of the water pump on the same axis, are not suitable for being used in the application scenario for having steering requirement to import and export, And the water pump is axle stream water-carriage mode, pumping height is smaller, it is impossible to meet the water delivery requirement of many equipment.The day for announcing is 2016 June 8, notification number discloses a kind of washing machine drainage pump configuration for the Chinese patent document of CN205297953U, including mutual The pump housing and drive end bearing bracket of connection, are provided with admission chamber and impeller cavity in drive end bearing bracket, rotor is coated with the pump housing, and pump housing periphery is provided with drive The solenoid component of dynamic rotor, the front end of rotor is connected with impeller assembly, and impeller assembly is arranged in impeller cavity, and drive end bearing bracket front end connects Plug screw is connect, filter stand is connected between plug screw and separator disc；The rotor includes rotating shaft and magnet steel, is arranged with the rotating shaft Magnet steel connector, the magnet steel connector includes front apron and backboard, by sleeve pipe connection between front apron and backboard, set Anti-skid structure is provided between pipe and rotating shaft, described magnet steel, the axle of magnet steel are set between the front apron and backboard of outside of sleeve To being provided with disconnecting prevention structure between two ends and front and rear baffle.The coil of motor rotor of this water pump etc. is exposed outside, uncomfortable The application scenario for closing some adverse circumstances uses.

Utility model content

The purpose of this utility model is to solve the above mentioned problem that prior art is present, there is provided a kind of housing knot of water pump Structure, makes water pump be adapted to having the application scenario for turning to requirement to use import and export, and on the other hand, the stator of water pump is closed, So that water pump meets the use requirement of severe environmental conditions.

The utility model is that the technical scheme that solution above-mentioned technical problem is used is, a kind of shell structure of water pump, bag Drive end bearing bracket and the main pump shell fastened with drive end bearing bracket are included, the drive end bearing bracket includes a pedestal, and the center of the pedestal extends oriented Preceding raised column, is provided with the cylindric impeller cavity of open rearward end in column, extend before the leading section mediad of column The water inlet pipe that composition is connected with impeller cavity, tangentially the outlet pipe connected with impeller cavity, the main pump are provided with the cavity wall of impeller cavity Shell includes a substrate, and opening cylindric rotor chamber forward is extended with after the mediad of the substrate, and the periphery of substrate is backward Extend the tubular shell for constituting surrounding rotor chamber, formed between the inwall of tubular shell and the outer wall in cylindrical rotor chamber opening to Annular stator chamber afterwards.The utility model, by extending the impeller cavity formed with the cooperation of main pump shell, will enter on drive end bearing bracket pedestal Water pipe is set directly on the center line of impeller cavity axial direction, by such structure setting, enormously simplify the influent side of water pump Structure, reduces the volume of water pump, reduces production cost.On the other hand, outlet pipe is arranged on impeller cavity by the utility model It is tangential on, into vertical stratification, such that it is able to meet, needs water pump intake-outlet is at a right angle to be set for such water inlet pipe and outlet pipe Standby matching requirements.Secondly, the utility model extends back the tubular shell in surrounding rotor chamber in the periphery of substrate, so electricity Machine stator can be arranged between rotor chamber and tubular shell, and tubular shell has coated the stator of motor（Including stator coil）, So as to solve, its stator core of the motor of prior art and coil etc. are exposed outside, are not suitable for what is used under some adverse circumstances Problem.

Preferably, fixed seat before rotating shaft is provided with drive end bearing bracket in the water inlet pipe of impeller cavity, it is fixed before the rotating shaft Seat is fixedly connected to the supporting plate for setting by water inlet bore with the tube wall of water inlet pipe；The rotor chamber bottom of main pump shell is formed There is fixed seat after rotating shaft, the center of fixed seat is equipped with shaft hole after fixed seat and rotating shaft before rotating shaft.

Preferably, pedestal is rectangular, including a base plate, the neighboring of base plate turns down constitute around the convex of base plate forward Edge, forms annular groove between convex edge and column, some reinforcements are provided with annular groove, and described substrate is rectangular, with rectangle Pedestal is adapted.Annular groove sets reinforcement is used to improve the structural strength of pedestal.

Preferably, four corners of base plate are provided with the cylinder vertical with base plate, the centre bore of cylinder constitutes pedestal mounting hole, The four sides middle part of base plate is provided with the alignment pin for protruding backward, and the four sides middle part of substrate is provided with location hole corresponding with alignment pin, base Four corners of plate are provided with fixing hole corresponding with mounting hole.Alignment pin is easy to drive end bearing bracket to be positioned with the assembling of main pump shell, pedestal peace Dress hole coordinates for drive end bearing bracket to be fixed on into main pump shell with the fixing hole of substrate.

Preferably, column is in cylinder, the leading section center of column is provided with circular platform, and water inlet pipe is arranged on circle On shape platform；The internal diameter of the water inlet pipe is more than the internal diameter of outlet pipe, the length of the length less than outlet pipe of water inlet pipe, water inlet pipe With ring-type disconnecting prevention structure is equipped with the outer peripheral face of outlet pipe.The structure being provided with beneficial to raising water inlet pipe root of circular platform Fixed seat before intensity, usual water pump uses an equal amount of water inlet pipe and water outlet pipe, but the utility model is provided with rotating shaft in the water inlet pipe, because Internal diameter of the internal diameter of this water inlet pipe more than outlet pipe；And ring-type disconnecting prevention structure can prevent the flexible pipe being connected with water inlet pipe and water outlet pipe from entering Come off on outlet pipe.

Preferably, fixed seat is in pre-small post-large truncated cone-shaped before rotating shaft, fixed seat is provided with conical flow guiding portion, institute before rotating shaft The supporting plate stated is three pieces, is uniformly distributed on the truncated cone-shaped outer peripheral face of fixed seat before the rotating shaft.

Preferably, the front end face of substrate is provided around the round ring boss of rotor chamber, the external diameter and water of round ring boss The internal diameter in impeller of pump chamber is adapted；The opening periphery of impeller cavity is provided with the sealing ring for being raised in base plate, the base of rotor chamber open side Front edge of board face is provided with annular seal pocket corresponding with sealing ring, and sealing gasket is provided with seal groove.Sealing ring is fastened with seal groove While fitted seal pad, it is ensured that the sealing between drive end bearing bracket and main pump shell.

Preferably, the outer wall of tubular shell is provided with axially extending strip projected parts, the axial length of tubular shell is big In the axial length of rotor chamber, the rearward end of tubular shell is provided with rear end cap, is provided with fixed near the outer wall of the rotor chamber of substrate Sub- positioning step.Rear end cap is used to close bore of stator, and the positioning step on rotor cavity outer wall is used for the position of limit stator core Put, be easy to the accurate assembling of motor stator.

The beneficial effects of the utility model are：Water pump volume that it efficiently solves prior art is big, high cost and its Water inlet-outlet pipe structure cannot meet the problem of some equipment matching requirements；Also solve its stator core of the motor of prior art and Coil etc. is exposed outside, the problem for being not suitable for being used under some adverse circumstances, the utility model simple structure, low production cost, With practical value very high.

Brief description of the drawings

Fig. 1 is a kind of cross section structure diagram of the present utility model；

Fig. 2 is a kind of dimensional structure diagram of the utility model drive end bearing bracket；

Fig. 3 is a kind of cross section structure diagram of the utility model drive end bearing bracket；

Fig. 4 is a kind of dimensional structure diagram of the utility model main pump shell；

Fig. 5 is a kind of cross section structure diagram of the utility model main pump shell.

In figure：1. drive end bearing bracket, 2. pedestal, 3. column, 4. impeller cavity, 5. water inlet pipe, 6. outlet pipe, 7. substrate, 8. turn Sub- chamber, 9. tubular shell, 10. bore of stator, fixed seat before 11. rotating shafts, 12. supporting plates, fixed seat after 13. rotating shafts, 14. rotating shafts Hole, 15. base plates, 16. convex edges, 17. annular grooves, 18. reinforcements, 19. cylinders, 20. mounting holes, 21. alignment pins, 22. location holes, 23. fixing holes, 24. circular platforms, 25. ring-type disconnecting prevention structures, 26. round ring boss, 27. sealing rings, 28. seal grooves, 29. is close Packing, 30. rear end caps, 31. positioning steps.

Specific embodiment

Below by embodiment, and further is made to the specific embodiment of technical solutions of the utility model with reference to accompanying drawing Explanation.

Embodiment 1

In embodiment 1 as shown in Figure 1, a kind of shell structure of water pump, including drive end bearing bracket and with drive end bearing bracket fasten Main pump shell, the drive end bearing bracket 1 includes a pedestal 2, and the center of the pedestal is extended with column 3 raised forward, column In cylinder, the leading section center of column is provided with circular platform 24.Pedestal is rectangular, including a base plate 15（See Fig. 3）, base plate Neighboring turn down forward composition around the convex edge 16 of base plate, between convex edge and column formed annular groove 17, set in annular groove There are some reinforcements 18；The cylindric impeller cavity 4 of open rearward end is provided with the column, before the leading section mediad of column Extend the water inlet pipe 5 for constituting and being connected with impeller cavity, water inlet pipe is arranged on circular platform；In the cavity wall of impeller cavity it is tangential be provided with The outlet pipe 6 of impeller cavity connection（See Fig. 2）, the main pump shell include a substrate 7, substrate is rectangular, is adapted with rectangular susceptor （See Fig. 4）；Opening cylindric rotor chamber 8 forward is extended with after the mediad of the substrate, the periphery of substrate extends back The tubular shell 9 in surrounding rotor chamber is constituted, opening is formed backward between the inwall of tubular shell and the outer wall in cylindrical rotor chamber Annular stator chamber 10（See Fig. 5）.Four corners of the base plate are provided with the cylinder 19 vertical with base plate, and the centre bore of cylinder is constituted Pedestal mounting hole 20, the four sides middle part of base plate is provided with the alignment pin 21 for protruding backward, and the four sides middle part of substrate is provided with and alignment pin Corresponding location hole 22, four corners of substrate are provided with fixing hole 23 corresponding with mounting hole.

Fixed seat 11 before rotating shaft is provided with drive end bearing bracket in the water inlet pipe of impeller cavity, before the rotating shaft fixed seat by Water inlet bore is fixedly connected to the supporting plate 12 for setting with the tube wall of water inlet pipe, and fixed seat is in pre-small post-large round platform before rotating shaft Shape, fixed seat is provided with conical flow guiding portion before rotating shaft, and described supporting plate is three pieces, the truncated cone-shaped outer peripheral face of fixed seat before rotating shaft On be uniformly distributed.The rotor chamber bottom of main pump shell is formed with fixed seat 13 after rotating shaft, fixed seat after fixed seat and rotating shaft before rotating shaft Center be equipped with shaft hole 14., more than the internal diameter of outlet pipe, the length of water inlet pipe is less than outlet pipe for the internal diameter of the water inlet pipe Length, be equipped with ring-type disconnecting prevention structure 25 on the outer peripheral face of water inlet pipe and outlet pipe.

The front end face of substrate is provided around the round ring boss 26 of rotor chamber, external diameter and the water pump vane chamber of round ring boss Internal diameter be adapted；The opening periphery of impeller cavity is provided with the sealing ring 27 for being raised in base plate, the substrate front end of rotor chamber open side Face is provided with annular seal pocket 28 corresponding with sealing ring, and sealing gasket 29 is provided with seal groove.The outer wall of tubular shell is provided with Axially extending strip projected parts, the axial length of the axial length more than rotor chamber of tubular shell, the rearward end of tubular shell sets There is rear end cap 30, stator positioning step 31 is provided near the outer wall of the rotor chamber of substrate.

The utility model, by extending the impeller cavity formed with rotor engagement, water inlet pipe is directly set on drive end bearing bracket pedestal Put on the center line of impeller cavity axial direction, and will be arranged in water inlet pipe for fixed seat before the rotating shaft for setting impeller shaft, lead to Such structure setting is crossed, the water inlet side structure of water pump is enormously simplify, the volume of water pump is reduced, production cost is reduced. And by outlet pipe be arranged on impeller cavity it is tangential on, such water inlet pipe and outlet pipe into vertical stratification, such that it is able to meet needs The matching requirements of water pump intake-outlet equipment at a right angle.On the other hand, the utility model is extended back in the periphery of pedestal The tubular shell in surrounding rotor chamber, such motor stator can be arranged between rotor chamber and tubular shell, tubular shell cladding The stator of motor（Including stator coil）, so as to solve its stator core of the motor of prior art and coil etc. it is exposed Outward, the problem for being not suitable for being used under some adverse circumstances.The utility model simple structure, low production cost, with reality very high With value.

Claims (8)

1. a kind of shell structure of water pump, including drive end bearing bracket and the main pump shell fastened with drive end bearing bracket, it is characterized in that, the front end Lid（1）Including a pedestal（2）, the center of the pedestal is extended with column raised forward（3）, rear end is provided with column and is opened The cylindric impeller cavity of mouth（4）, the water inlet pipe for constituting and being connected with impeller cavity is extended before the leading section mediad of column（5）, leaf Tangentially the outlet pipe connected with impeller cavity is provided with the cavity wall for taking turns chamber（6）, the main pump shell include a substrate（7）, the substrate Mediad after be extended with opening cylindric rotor chamber forward（8）, the periphery of substrate extends back and constitutes surrounding rotor chamber Tubular shell（9）, opening annular stator chamber backward is formed between the inwall of tubular shell and the outer wall in cylindrical rotor chamber （10）.

2. the shell structure of water pump according to claim 1, it is characterised in that：Near the water inlet pipe of impeller cavity on drive end bearing bracket Inside it is provided with fixed seat before rotating shaft（11）, fixed seat is by supporting plate of the bore to setting of intaking before the rotating shaft（12）With enter The tube wall of water pipe is fixedly connected；The rotor chamber bottom of main pump shell is formed with fixed seat after rotating shaft（13）, before rotating shaft fixed seat with turn The center of fixed seat is equipped with shaft hole after axle（14）.

3. the shell structure of water pump according to claim 1, it is characterised in that：Described pedestal is rectangular, including a bottom Plate（15）, the neighboring of base plate turns down forward composition around the convex edge of base plate（16）, annular groove is formed between convex edge and column （17）, some reinforcements are provided with annular groove（18）；Described substrate is rectangular, is adapted with rectangular susceptor.

4. the shell structure of water pump according to claim 3, it is characterised in that：Four corners of the base plate are provided with and base plate Vertical cylinder（19）, the centre bore composition pedestal mounting hole of cylinder（20）, the four sides middle part of base plate is provided with determining of protruding backward Position pin（21）, the four sides middle part of substrate is provided with location hole corresponding with alignment pin（22）, four corners of substrate are provided with and mounting hole Corresponding fixing hole（23）.

5. the shell structure of water pump according to claim 1, it is characterised in that：Described column is in cylinder, column The leading section center of body is provided with circular platform（24）, water inlet pipe is arranged on circular platform；The internal diameter of the water inlet pipe is more than Ring-type is equipped with the outer peripheral face of the internal diameter of water pipe, the length of the length less than outlet pipe of water inlet pipe, water inlet pipe and outlet pipe to prevent De- structure（25）.

6. the shell structure of water pump according to claim 2, it is characterised in that：Fixed seat is in pre-small post-large before the rotating shaft Truncated cone-shaped, fixed seat is provided with conical flow guiding portion before rotating shaft, and described supporting plate is three pieces, the truncated cone-shaped of fixed seat before rotating shaft It is uniformly distributed on outer peripheral face.

7. the shell structure of the water pump according to claim any one of 1-6, it is characterised in that：The front end face of substrate is provided with ring Around the round ring boss of rotor chamber（26）, the external diameter of round ring boss is adapted with the internal diameter in water pump vane chamber；Impeller cavity is opened Mouth periphery is provided with the sealing ring for being raised in base plate（27）, the substrate front end face of rotor chamber open side is provided with corresponding with sealing ring Annular seal pocket（28）, sealing gasket is provided with seal groove（29）.

8. the shell structure of the water pump according to claim any one of 1-6, it is characterised in that：Set on the outer wall of tubular shell There are axially extending strip projected parts, the axial length of the axial length more than rotor chamber of tubular shell, the rearward end of tubular shell It is provided with rear end cap（30）, stator positioning step is provided near the outer wall of the rotor chamber of substrate（31）.