TWI692586B - Pump - Google Patents

Abstract

A pump of this creation includes: a frame body, a motor, a transmission shaft, a seat shell and an impeller, the motor is arranged on the frame body, the transmission shaft is combined with the frame body and can be driven to rotate by the motor, and the seat shell is combined with the frame body, The seat shell includes the inner peripheral surface, the bottom, the liquid inlet and the accommodating space. The liquid inlet of the seat shell is lower than the peripheral edge of the bottom of the seat shell. The impeller is located in the accommodating space of the frame body and is fixed to the transmission shaft; The liquid inlet of the seat shell is lower than the peripheral edge of the bottom of the seat shell, and after the machine tool is stopped, the returned liquid can more easily bring the debris in the seat shell away from the seat shell, so that the impeller can not be affected when it restarts to rotate The accumulation of debris hinders and improves the problem that debris will be deposited in the seat shell and impede the operation of the impeller.

Description

Pump

This creation relates to a kind of pump, especially a kind of pump in which the liquid inlet of the seat shell is lower than the periphery of the bottom of the seat shell, so that the debris in the seat shell can be more easily taken away.

Press, a cutting fluid pump 90 currently used in CNC lathes or milling machines, as shown in FIG. 6, it uses a drive shaft 91 to drive an impeller 92 to rotate, the cutting fluid into the liquid from one of the shell 93 below The port 931 is sucked into the seat shell 93, and the impeller 92 rotates to drive the cutting fluid into a cutting fluid channel 94, and the cutting fluid is delivered to a predetermined place; the used cutting fluid will return to the cutting fluid pool, and then be The machine tool cutting fluid pump 90 sucks in the seat shell 93 and delivers it again to recycle the cutting fluid.

However, the returned cutting fluid will be mixed with fine cutting chips 95. When the existing machine tool cutting fluid pump 90 is in operation, these cutting chips 95 will also be sucked into the seat shell 93. The machine tool cutting fluid pump 90 After shutdown, the cutting chips 95 will be deposited on the seat shell 93, and when the impeller 92 is started again, it will cause resistance to the impeller 92, causing wear and damage to the impeller 92, which in turn leads to a shortened life of the impeller 92 and the The replacement cost of the impeller 92 increases.

In order to improve the problem that cutting chips will be deposited in the seat shell of the existing machine tool cutting fluid pump and hinder the operation of the impeller, the liquid inlet of the seat shell of this creation is lower than the peripheral edge of the bottom of the seat shell, so that when the pump stops, the backflow The liquid can easily take the debris in the liquid away from the seat shell, so that the impeller can not be hindered by the accumulated debris when it restarts to rotate, to achieve the purpose of extending the life of the impeller and reducing the cost of impeller replacement.

A pump comprising: A motor, which is arranged on the frame body; A frame, which contains a channel, which can transport liquid; A transmission shaft, which is vertically and rotatably provided on the frame body, and the transmission shaft can be driven and rotated by the motor; A shell, which is combined with the lower part of the frame body, the seat shell includes an inner peripheral surface, a bottom, a liquid inlet and a containing space, the liquid inlet is lower than the peripheral edge of the bottom; and An impeller is located in the accommodating space of the seat shell, the impeller is fixed to the transmission shaft and can rotate with the transmission shaft, the impeller includes a wheel body and a plurality of rotating blades, and the wheel body includes opposite An upper surface and a lower surface, the plurality of rotating blades are provided on the lower surface of the wheel body.

In the pump, the bottom of the seat shell is tapered.

The pump, wherein the height change of the plurality of rotating blades is set corresponding to the height change of the bottom of the seat shell, and the height of each rotating blade gradually increases from the center of the impeller to the periphery of the impeller Decrease, so that the rotary blade is close to the bottom of the seat shell.

In the pump described above, the impeller includes a shaft connecting portion and a plurality of upswing blades provided on the upper surface of the wheel body, the shaft connecting portion is located on the axis of the wheel body, and the plurality of upswing blades are The shaft-connected portion is connected and spirally extends from the central portion of the impeller to the periphery, and the plurality of top-spindle blades spirally extend in the same direction as the plurality of blades.

In the pump described above, the seat shell includes a flow guide part, which is provided on the inner circumferential surface of the seat shell corresponding to the position of the channel of the frame body.

In the pump described above, the impeller includes a shaft connecting portion and a plurality of upswing blades provided on the upper surface of the wheel body, the shaft connecting portion is located on the axis of the wheel body, and the plurality of upswing blades are The shaft-connected portion is connected and spirally extends from the central portion of the impeller to the periphery, and the plurality of top-spindle blades spirally extend in the same direction as the plurality of blades.

The efficiency gains achieved by the technical means of this creation are: 1. The liquid inlet of the seat shell of this creation is lower than the circumference of the bottom of the seat shell. When the pump is stopped and the liquid returns, debris can be more easily taken away from the seat shell along the inclined bottom, so that the pump is under During the second operation, the impeller can rotate smoothly without being hindered by the accumulated debris, so as to prolong the service life of the impeller and reduce the replacement cost of the impeller. 2. The height of the rotating blade in this creation is set according to the height change of the bottom of the seat shell, which can limit the distance between the rotating blade and the bottom of the seat shell, so that the rotating blade is close to the bottom of the seat shell, so that the rotating blade can The liquid is more efficiently sucked into the seat shell and driven into the channel of the rack body. 3. The upper surface of the wheel body of this creation is provided with the upper rotating blades arranged in the same direction as the rotating blades. The upper rotating blades can suck liquid into the seat shell and can drive the liquid into the channel of the rack body together with the rotating blades, so that the liquid does not It will be sprayed from the shaft hole of the bottom plate, which can avoid the liquid splashing and the working environment from being dirty and slippery due to the liquid splashing, so as to improve the safety of the working environment.

In order to understand the technical characteristics and practical effects of this creation in detail, and to achieve it in accordance with the content of the creation, the preferred embodiment as shown in the figure is further described below, and the detailed description is as follows:

As shown in FIGS. 1 and 3, a pump of the present invention includes a frame 10, a transmission shaft 20, an impeller 30, a housing 40 and a motor 50. The motor 50 is provided on the frame body 10.

As shown in FIGS. 1 and 2, the frame body 10 includes a channel 11 and a bottom plate 12. The frame body 10 can transmit liquid through the channel 11. The bottom plate 12 is located at the lower portion of the frame body 10 and includes a shaft hole 121. The transmission shaft 20 includes a longitudinal direction and a first end and a second end opposite to the longitudinal direction. The first end of the transmission shaft 20 is connected to the motor 50. The transmission shaft 20 can be driven by the motor 50 While rotating, the second end of the transmission shaft 20 passes through the shaft hole 121 of the bottom plate 12.

As shown in FIGS. 2, 3 and 5, the impeller 30 is located at the second end of the transmission shaft 20. The impeller 30 includes a wheel body 31, a shaft joint 32, a plurality of rotating blades 33 and a plurality of rotating blades 34 The wheel body 31 includes an upper surface and a lower surface opposite to each other. The shaft connecting portion 32 is located at the axis of the wheel body 31. The shaft connecting portion 32 is consolidated with the transmission shaft 20 so that the impeller 30 can be subjected to the The drive shaft 20 is driven to rotate together. The plurality of rotary blades 33 are provided on the lower surface of the wheel body 31 and spirally extend from the central portion of the impeller 30 to the periphery of the wheel body 31, and the height D of each rotary blade 33 is from the center of the impeller 30 The portion decreases toward the periphery of the wheel body 31; the plurality of up-spin blades 34 are provided on the upper surface of the wheel body 31, and the plurality of up-spin blades 34 extend spirally in the same direction as the plurality of up-spin blades 33 , Each up-rotating blade 34 is connected to the shaft connecting portion 32.

As shown in FIGS. 2 to 4, the seat shell 40 is coupled to the bottom plate 12. The seat shell 40 is in an inverted cover shape and includes an inner peripheral surface, a bottom 41, a liquid inlet 42, and a flow guide 43 and a storage space. The bottom 41 has a tapered, arc or stepped inclination, and the height of the bottom 41 gradually decreases from the periphery of the bottom 41 to the center of the bottom 41; in the preferred embodiment of the present invention, the bottom 41 is tapered, and each rotary blade 33 abuts against the bottom 41 of the seat shell 40. The liquid inlet 42 is located in the center of the bottom 41, and the liquid inlet 42 is lower than the periphery of the bottom 41. The liquid inlet 42 penetrates the bottom 41 of the seat shell 40 and communicates with the inside of the seat shell 40 and Its exterior. The deflector 43 is recessed on the inner peripheral surface of the seat shell 40, and the position of the deflector 43 is set corresponding to the opening position of the channel 11 of the frame 10, so that the fluid in the seat shell 40 The channel 11 of the rack body 10 enters along the flow guide 43.

The liquid inlet 42 of the seat shell 40 of the present creation is lower than the circumference of the bottom 41 of the seat shell 40. When the pump is stopped and the liquid returns, the debris in the liquid can more easily follow the tapered and inclined bottom Being taken away from the seat shell 40, the impeller 30 can rotate smoothly without being hindered by accumulated debris during the next operation of the pump, which can extend the service life of the impeller 30 and reduce the replacement cost of the impeller 30 the goal of.

The height D of the plurality of rotary blades 33 in this creation is set corresponding to the change in the height of the bottom 41 of the seat shell 40. Compared with the rotary blades of equal height, this creation can limit the number of rotary blades 33 and the 40 the distance of the bottom 41 of the seat shell, so that the rotary blades 33 are close to the bottom 41 of the seat shell 40, so that the plurality of rotary blades 33 can more efficiently draw liquid into the seat shell 40 and drive into the frame In the channel 11 of the body 10.

The impeller 30 of the present invention includes a plurality of upwardly rotating blades 34 arranged in the same direction as the rotary blade 33. Compared with the impeller having a flat upper surface, the plurality of upwardly rotating blades 34 of the present invention can draw liquid from the shaft hole 121 into the Seat shell 40, and can drive the liquid into the channel 11 of the frame body 10 together with the plurality of rotating blades 33, so that the liquid will not splash out from the shaft hole 121, and the working environment can be prevented from being dirty and wet due to the liquid splashing Sliding to achieve the effect of improving the safety of the working environment.

The above is only the preferred embodiment of this creation, and does not limit this creation in any way. Anyone who has ordinary knowledge in the technical field of his own, if he does not deviate from the technical features mentioned in this creation, use this Equivalent embodiments of partial changes or modifications made in the technical content disclosed in the creation still fall within the scope of the technical features of the creation.

10: Frame 11: Channel 12: bottom plate 121: Shaft hole 20: Drive shaft 30: Impeller 31: Wheel 32: shaft joint 33: Rotating blade 34: Spinning blade 40: seat shell 41: bottom 42: Liquid inlet 43: Diversion section 50: motor 90: Machine tool cutting fluid pump 91: drive shaft 92: Impeller 93: Seat shell 931: Liquid inlet 94: Cutting fluid channel 95: cutting chips D: height

FIG. 1 is a perspective view of the appearance of a preferred embodiment of creation. Figure 2 is a schematic cross-sectional view of a preferred embodiment of the creation. Figure 3 is an exploded perspective view of a preferred embodiment of the creation. 4 is a partial perspective view of the impeller of the preferred embodiment of the creation. Fig. 5 is a partial side view of the impeller of the preferred embodiment of the invention. 6 is a schematic cross-sectional view of a cutting fluid pump of a conventional machine tool.

10: Frame

11: Channel

12: bottom plate

121: Shaft hole

20: Drive shaft

30: Impeller

31: Wheel

32: shaft joint

33: Rotating blade

34: Spinning blade

40: seat shell

41: Underside

42: Liquid inlet

43: Diversion section

Claims (5)

A pump comprising: a frame body including a channel capable of conveying liquid; a motor arranged on the frame body; a transmission shaft arranged upright and rotatably on the frame body and the transmission The shaft can be driven to rotate by the motor; a housing is combined with the lower part of the frame body, the housing includes an inner peripheral surface, a bottom, a liquid inlet and a containing space, the liquid inlet is lower than the The periphery of the bottom; and an impeller, which is located in the accommodating space of the seat shell, the impeller is fixed to the drive shaft and can rotate with the drive shaft, the impeller includes a wheel body and a plurality of rotating blades, the The wheel body includes an upper surface and a lower surface opposite to each other, and the plurality of rotating blades are disposed on the lower surface of the wheel body. The pump according to claim 1, wherein the bottom of the seat shell is tapered. The pump according to claim 1, wherein the change in the height of the plurality of rotating blades is set corresponding to the change in the height of the bottom of the seat shell, so that the height of each rotating blade moves from the center of the impeller to the The peripheral edge of the impeller gradually decreases, so that the rotating blade is close to the bottom of the seat shell. The pump according to claim 3, wherein the impeller includes a shaft connecting portion and a plurality of upswing blades provided on the upper surface of the wheel body, the shaft connecting portion is located at the axis of the wheel body, and the plurality of The upswing blades are connected to the shaft connecting portion and spirally extend from the central portion of the impeller to the periphery, and the plurality of upswing blades spirally extend in the same direction as the plurality of the rotating blades. The pump according to any one of claims 1 to 4, wherein the seat shell includes a flow guide part corresponding to the position of the channel of the frame body and is provided on the inner circumference of the seat shell surface.

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