TWI694211B - Pump - Google Patents

Abstract

This creation includes: a frame, a motor, a transmission shaft, a shell and an impeller. The transmission shaft is combined with the frame and can be driven by the motor to rotate. The seat shell is combined with the lower part of the frame and includes a liquid inlet and a The accommodating space, the liquid inlet penetrates the seat shell, the impeller is located in the accommodating space of the seat shell and is fixed to the transmission shaft. The impeller includes a wheel body, a shaft joint, a rotating blade and a top-rotating blade, the shaft joint is located in the wheel body The axis of the rotor blade is set on the lower surface of the wheel body. The upper blade is located on the upper surface of the wheel body and the spiral blades are spirally arranged in the same direction. The upper blade is connected to the shaft joint; in order to solve the problem of liquid splashing from above the impeller The problem of dirty and slippery working environment caused by the out of the seat shell. The up-spin blade of this creation can suck the liquid into the seat shell together with the rotary blade so that the liquid will not splash out, so as to improve the safety of the working environment.

Description

Pump

This creation relates to a pump, especially a pump in which the upper and lower parts of the impeller contain rotating blades arranged in the same direction to avoid splashing.

As shown in FIG. 7, a machine tool cutting fluid pump 90 currently used in CNC lathes or milling machines is driven by a drive shaft 91 to rotate an impeller 92 to draw cutting fluid from a housing 93 into a suction hole 931 Inhale the seat shell 93, through the rotation of the impeller 92 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 by the tool The machine cutting fluid pump 90 sucks the seat shell 93 and delivers it again to recycle the cutting fluid.

However, when the cutting fluid pump 90 of the existing machine tool is in operation, because the upper part of the impeller 92 is not provided with a rotating blade, after the cutting fluid is sucked from the suction hole 931, part of the cutting fluid will pass through the seat shell 93 and the The gap between the impeller 92 flows upward and splashes out from the shaft hole 95, making the surroundings of the machine tool cutting fluid pump 90 dirty and slippery, causing doubts about the safety of the working environment.

In order to solve the problem that the cutting fluid pumped by the cutting fluid of the existing machine tool will splash and cause the working environment to be dirty, wet, slippery and safe, the impeller of this creation has an upper rotating blade that is arranged in the same direction as the rotating blade on the lower surface. The liquid is sucked into the seat shell, so that the liquid will not 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, and the effect of improving the safety of the working environment is achieved.

A pump comprising: A frame body, which contains a channel, which can transport liquid; a motor, which is arranged in the frame body; a transmission shaft, which is vertically arranged 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 penetrated through the bottom; and an impeller, which is located in the 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, a shaft joint, a plurality of rotating blades and a plurality of rotating blades. The body includes an upper surface and a lower surface opposite to each other, the shaft connecting portion is located at the axis of the wheel body, the plurality of rotating blades are provided on the lower surface of the wheel body, the plurality of upper rotating blades are connected to the shaft connecting portion and It extends spirally from the center of the impeller to the periphery, and the plurality of top-spindle blades and the plurality of blades spirally extend in the same direction.

In the pump, the liquid inlet of the seat shell is lower than the periphery of the bottom, and the liquid inlet is located at the lowest point of the bottom.

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, so that the height of each rotating blade gradually decreases from the center of the impeller to the circumference of the impeller , And make the rotary blade close to the bottom of the seat shell.

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.

The efficiency gains achieved by the technical means of this creation are:

1. 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.

2. 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 stops and the liquid returns, the debris in the liquid can be more easily taken away from the seat shell along the inclined bottom, so that The next time the pump runs, the impeller can rotate smoothly without being hindered by accumulated debris, so as to extend the life of the impeller and reduce the cost of impeller replacement.

3. The height of the rotating blade in this creation is set corresponding 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.

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: shaft hole

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.

Fig. 4 is a partial side view of the impeller according to the preferred embodiment of the invention.

Fig. 5 is a perspective view of an impeller according to a preferred embodiment of the creation.

FIG. 6 is another perspective view of the impeller of the preferred embodiment of the creation.

7 is a schematic cross-sectional view of a cutting fluid pump of a conventional machine tool.

In order to understand the technical features 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 in detail below: As shown in FIGS. 1 and 3, this A kind of pump created 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 . As shown in FIGS. 4 to 6, 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 fixed to the transmission shaft 20. Therefore, the impeller 30 can be driven by the transmission shaft 20 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 and 3, the seat shell 40 is coupled to the bottom plate 12. The seat shell 40 is an inverted cover 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 can be tapered, arc-shaped, or stepped. 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 The bottom portion 41 is tapered, and each rotary blade 33 abuts against the bottom portion 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 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 liquid into the channel of the frame body 10 together with the plurality of rotary blades 33 11. The liquid will not splash out from the shaft hole 121, which can prevent the working environment from being dirty and slippery due to the liquid splashing, and achieve the effect of improving the safety of the working environment.

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 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

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 on the frame body and the transmission shaft capable of receiving The motor is driven to rotate; a shell 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 penetrated through the bottom; And an impeller, which 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, a shaft joint, a plurality of rotating blades and a plurality of upper Rotating blades, the wheel body includes an upper surface and a lower surface facing each other, the shaft joint is located at the axis of the wheel body, the plurality of rotating blades are disposed on the lower surface of the wheel body, the plurality of upper rotating blades It is connected to the shaft connecting portion and spirally extends from the central portion of the impeller to the peripheral edge, and the plurality of upswing blades and the plurality of spiral blades spirally extend in the same direction. The pump according to claim 1, wherein the liquid inlet of the seat shell is lower than the peripheral edge of the bottom, and the liquid inlet is located at the lowest point of the bottom. The pump according to claim 2, wherein the bottom of the housing is tapered. The pump according to claim 2, 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 impeller The peripheral edge of is gradually reduced, so that the rotary blade is close to the bottom of the seat shell. 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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