CN108127477B

CN108127477B - Apparatus for manufacturing vacuum pump

Info

Publication number: CN108127477B
Application number: CN201711389375.1A
Authority: CN
Inventors: 郑文忠
Original assignee: Chongqing Heng You Mechanical And Electrical Equipment Co Ltd
Current assignee: Chongqing Heng You Mechanical And Electrical Equipment Co Ltd
Priority date: 2017-12-21
Filing date: 2017-12-21
Publication date: 2020-01-31
Anticipated expiration: 2037-12-21
Also published as: CN108127477A

Abstract

The invention relates to the technical field of pump production, in particular to equipment for manufacturing a vacuum pump, which comprises a rack, wherein a clamping part for clamping a workpiece and a cutter for processing the workpiece are arranged on the rack, the equipment also comprises a cooling liquid tank, a collecting unit and a recovering unit, cooling liquid in the cooling liquid tank is ethanol or acetone, a refrigerating screen plate is arranged above the cooling liquid tank, the collecting unit comprises a guide plate and a collecting barrel, the guide plate is obliquely arranged from top to bottom, the recovering unit comprises a liquid suction pipe, an atomizing pipe and an air blowing part, the liquid suction pipe is vertical to the atomizing pipe and is shorter than the atomizing pipe, the bottom end of the liquid suction pipe is positioned in the collecting barrel, the top end of the liquid suction pipe is higher than the refrigerating screen plate, the end of the atomizing pipe is communicated with the air blowing part, and the end faces the refrigerating screen plate and is connected with the top end of the liquid suction pipe.

Description

Apparatus for manufacturing vacuum pump

Technical Field

The invention relates to the technical field of pump production, in particular to types of equipment for manufacturing a vacuum pump.

Background

The vacuum pump is a device or equipment for obtaining vacuum by utilizing mechanical, physical, chemical or physical-chemical methods to pump air to a pumped container, generally speaking, the vacuum pump is a device for improving, generating and maintaining vacuum in a certain closed space by various methods, a vacuum pump is generally composed of a shell, a side cover, an end cover, a rotor and the like, a machine tool is mostly used in processing equipment of the shell to obtain the shell with a plurality of grooves on the outer surface, in the actual processing process, a cutting tool can generate a large amount of heat, so the cutting tool and a vacuum pump shell are often cooled and lubricated by using a cutting fluid, the cutting fluid has the characteristics of good cooling performance, lubricating performance, antirust performance, oil removing and cleaning functions, anticorrosion function and easy dilution, the defects that the traditional soap-based emulsion is easy to smell in summer, difficult to dilute in winter and has poor antirust effect are overcome, and the machine tool paint is not influenced well.

However, in the prior art, in the cooling process by adopting the cutting fluid (cooling fluid), the defects that 1, part of the cutting fluid is remained on the surface of the shell after the machining is finished, particularly, the cutting fluid is remained in a strip-shaped groove on the surface of the shell most obviously, spots are formed on the surface of the shell after the cutting fluid is dried, the appearance of the shell is influenced, 2, direct injection cooling fluid is needed to be injected onto the surface of a workpiece in the shell machining process, but most of the cooling fluid is directly discharged, the environment is polluted, and the use cost of the cooling fluid is increased are also existed.

Disclosure of Invention

The invention aims to provide types of equipment for manufacturing a vacuum pump, which can not only prevent coolant from remaining on the surface of a vacuum pump shell to form spots, but also recover the coolant and reduce the use cost of the coolant.

In order to achieve the purpose, the invention provides the following technical scheme that the equipment for manufacturing the vacuum pump comprises a rack, a cooling liquid tank, a collecting unit and a recycling unit, wherein a clamping part for clamping the workpiece and a cutter for machining the workpiece are arranged on the rack, the cooling liquid in the cooling liquid tank is ethanol or acetone, a refrigerating screen plate is arranged above the cooling liquid tank, the top of the cooling liquid tank is open, the bottom of the cooling liquid tank is communicated with a high-pressure spray head, the clamping part and the cutter are both positioned below the high-pressure spray head, the collecting unit comprises a guide plate and a collecting barrel, the guide plate is obliquely arranged from top to bottom, the top end of the liquid suction pipe is positioned below the high-pressure spray head, the bottom end of the guide plate is communicated with the bottom of the collecting barrel, the clamping part and the cutter are both positioned above the guide plate, the recycling unit comprises a liquid suction pipe, an atomizing pipe and an air blowing part, the recycling unit is vertical to the atomizing pipe and is shorter than the atomizing pipe, the bottom end of the liquid suction pipe is positioned in the collecting barrel, the top end of the refrigerating screen plate is higher than the end.

The beneficial effects of the above technical scheme are that:

1. the cutting fluid is replaced by ethanol or acetone, and the heat generated when the cutter is used for processing the vacuum pump shell is absorbed by utilizing the characteristics of volatility and heat absorption during volatilization of the ethanol or the acetone, so that the cooling effect is achieved; after the machining, other subsequent treatment processes such as drying and the like are not needed, and the ethanol or acetone attached to the surface of the vacuum pump shell can be automatically volatilized (can be automatically volatilized at room temperature) and can not remain on the surface of the vacuum pump shell, so that the situations that cutting fluid in the prior art remains on the surface of the vacuum pump shell to generate spots and the like are effectively avoided; by utilizing the excellent solubility of the ethanol or the acetone, when the ethanol or the acetone brings scraps generated by processing to the guide plate, the ethanol or the acetone can also bring other impurities such as oil stains and the like on the surface of the vacuum pump shell away, and the cleaning effect is good.

2. By the structural connection relationship among the liquid suction pipe, the spray pipe, the air blowing part and the air blowing part, and by utilizing the Bernoulli principle of increasing flow velocity and reducing pressure intensity, when the air blowing part blows air into the spray pipe, the air pressure above the liquid suction pipe is reduced, the ethanol or acetone in the liquid suction pipe rises to the top of the liquid suction pipe, and the ethanol or acetone rising to the top of the liquid suction pipe is blown away by the rapid air flow formed by the air sprayed from the spray pipe to form spray on the refrigerating screen plate; the spray is condensed into liquid drops to be attached to the refrigerating screen plate when meeting the condensation, and the liquid drops directly fall into the cooling liquid box under the action of gravity, so that the purposes of recycling the cooling liquid and recycling the cooling liquid are achieved, and the use cost of the cooling liquid is reduced.

3. The cooling screen plate is arranged above the cooling liquid box, the high-pressure spray head is arranged at the bottom of the cooling liquid box, so that in the process of cooling the cutter, volatilized ethanol or acetone in a gas state can be condensed and condensed into liquid drops on the cooling screen plate in the rising process of the cooling liquid and directly fall into the cooling liquid box, the recovery rate of the ethanol/acetone is further improved , the cooling liquid is recycled in the using process, the purpose of cooling can be achieved for a long time after the ethanol/acetone cooling liquid is added into the cooling liquid box times, the cutting liquid does not need to be added frequently in the prior art, and the processing operation procedures are effectively reduced.

Preferred scheme , as the preferred scheme of basic scheme, the refrigeration otter board includes a plurality of horizontal pipes and a plurality of vertical pipe, horizontal pipe and vertical pipe mutually perpendicular, and form the weeping diaphragm orifice between two adjacent horizontal pipes and two adjacent vertical pipes, horizontal pipe and vertical pipe all are equipped with a plurality of protruding needles that are used for the condensation liquid drop.

In the second preferred embodiment or , the spray pipe has a diameter larger than that of the pipette, so that after the air blowing section blows air into the spray pipe, the spray pipe can make the air pressure at the top of the pipette lower faster, the coolant rise faster and the recovery efficiency higher.

Preferably, scheme three, as the preferred scheme of basic scheme or preferred scheme , the imbibition pipe is internally and fixedly provided with activated carbon, can carry out steps of filtration to ethanol/acetone, and has better purification effect.

Preferably, as a basic solution or a preferred solution of the preferred solution , a filter screen for filtering the cooling liquid introduced by the guide plate is arranged on the side wall of the collecting barrel, so that the ethanol and impurities with larger particles can be filtered and separated, and the ethanol solution can be purified.

Preferably, the bottom end of the guide plate is provided with a filter residue box for collecting filter residues, the filter residue box is connected with the rack in a sliding mode, filtered debris and other large-particle impurities are gradually deposited in the filter residue box, and after the filtered debris and other large-particle impurities are deposited to degrees, the filter residue can be poured out by sliding the filter residue box, and operation is convenient.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the apparatus for manufacturing a vacuum pump according to the present invention;

FIG. 2 is a schematic diagram of the structure of the refrigerating web panel in FIG. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a frame 1, a clamping part 2, a cutter 20, a cylinder 21, a vacuum pump shell 22, a cooling liquid box 3, a high-pressure spray head 30, a refrigeration screen plate 4, a horizontal pipe 40, a vertical pipe 41, a leakage plate hole 42, a convex needle 43, a guide plate 5, a filter residue box 50, a collecting barrel 6, a filter screen 60, a pipette 7, activated carbon 70, an atomizing pipe 8, a fixing frame 80, an air cylinder 9 and a sealing sleeve 90.

The embodiment is basically as shown in the attached figure 1: the equipment for manufacturing the vacuum pump comprises a frame 1, wherein a clamping part 2 for clamping a workpiece and a cutter 20 for machining the workpiece are arranged on the frame 1, the clamping part 2 and the cutter 20 can directly adopt the prior art, the clamping part 2 is positioned on the left side, the cutter 20 is positioned on the right side, and a vacuum pump shell 22 is positioned between the clamping part 2 and the cutter 20; the right end of the cutter 20 is connected with a cylinder 21 so that the cutter 20 can move according to the processing requirement. Further comprising a cooling liquid tank 3, a collection unit and a recovery unit.

The cooling liquid in the cooling liquid tank 3 is ethanol or acetone, and ethanol is adopted in the embodiment. The top opening of coolant liquid case 3, the bottom intercommunication of coolant liquid case 3 has high pressure nozzle 30, and clamping part 2 and cutter 20 all are located the below of high pressure nozzle 30, realize spouting the ethanol in coolant liquid case 3 to vacuum pump casing 22 at a high speed. A refrigerating screen plate 4 is arranged above the cooling liquid tank 3. As shown in fig. 2, the refrigerating mesh plate 4 includes a plurality of horizontal tubes 40 and a plurality of vertical tubes 41, the horizontal tubes 40 are perpendicular to the vertical tubes 41, a leakage plate hole 42 is formed between two adjacent horizontal tubes 40 and two adjacent vertical tubes 41, a plurality of protruding pins 43 for condensing liquid drops are arranged on the horizontal tubes 40 and the vertical tubes 41, so that the contact area between ethanol gas or ethanol spray and the horizontal tube 40/the vertical tube 41 can be increased, and the condensation efficiency of ethanol can be increased. The refrigeration principle of the refrigeration net plate 4 can be directly applied to the prior art, as long as the horizontal pipe 40 and the vertical pipe 41 can cool the ethanol gas or the ethanol is sprayed into ethanol liquid, for example, the technology of cooling by using an environment-friendly refrigerant R410A in an air conditioner.

The collecting unit comprises a guide plate 5 and a collecting barrel 6; the guide plate 5 is obliquely arranged from top to bottom, the top end of the guide plate 5 is positioned below the high-pressure spray head 30, meanwhile, the clamping part 2 and the cutter 20 are positioned above the guide plate 5, the bottom end of the guide plate 5 is provided with a groove-shaped residue filtering box 50, the residue filtering box 50 is in sliding connection with the rack 1, the side wall of the collecting barrel 6 is provided with a filter screen 60 for filtering ethanol introduced by the guide plate 5, and the bottom end of the guide plate 5 is communicated with the bottom of the collecting barrel 6 so as to enable the ethanol to enter the collecting barrel 6; it is also possible to gradually deposit metal debris falling from the milling housing surface of the tool 20 in the filter residue box 50 for preliminary purification of the ethanol.

The recovery unit comprises a pipette 7, an atomizing pipe 8 and an air blowing part, the bottom end of the pipette 7 is positioned in the collection barrel 6, the bottom end of the pipette 7 is in a wedge shape, the bottom end of the pipette 7 is spaced from the bottom of the collection barrel 6 by , in the embodiment, the bottom of the pipette 7 is flush with the top of the filter screen 60, so that the pipette 7 can be prevented from sucking fine particles such as dust and the like deposited in the collection barrel 6, the top end of the pipette 7 is higher than the refrigeration screen plate 4, the pipette 7 is fixedly provided with an active carbon pipette 70, the pipette is particularly provided with bags of active carbon 70 by gauze bags, then hangers are arranged in the pipette 7, and the gauze bags are hung in the hangers, so that the ethanol can be filtered by steps, the purification effect is better, the right end of the atomizing pipe 8 is communicated with the air blowing part, the air blowing part is preferably an air cylinder 9, the air cylinder 90 is hermetically connected between the air cylinder 9 and the atomizing pipe 8, the left end of the atomizing pipe 8 faces the refrigeration screen plate 4 and is welded with the top end of the refrigeration screen plate 7, the atomizing pipe 7 is perpendicular to the atomizing pipe 7, the air pressure of the atomizing pipe 7 is reduced, and the air cylinder 7 is larger than the air pressure of the air blowing pipe 7, and the air cylinder 7 is increased when the air cylinder 7 is increased, the air pressure of the air cylinder 7 is increased, and the air cylinder 7 is increased, and the air.

When the vacuum pump shell 22 is processed, the vacuum pump shell 22 is fixed on the clamping part 2, the cutter 20 is started to process the vacuum pump shell 22, the high-pressure spray head 30 is opened simultaneously in the processing process, ethanol in the cooling liquid tank 3 is sprayed to the surface of the vacuum pump shell 22 at a high speed, the air cylinder 9 is started to continuously blow air to the spray pipe 8, the ethanol takes away heat generated when the cutter 20 processes the vacuum pump shell 22 by utilizing the characteristic of heat absorption during self volatilization so as to achieve a cooling effect, the good dissolubility (compatible with oil and water substances) of the ethanol can achieve a good cleaning effect on impurities on the surface of the vacuum pump shell 22, the volatilized ethanol in a gas state rises to the refrigeration screen plate 4 to be condensed and adhered to the convex needles 43 on the refrigeration screen plate 4, the ethanol in a liquid state falls to the bottom of the guide plate 5 with the impurities such as chips and the like under the action of the spray pipe 8, the liquid state passes through the filter screen 60 to enter the collection barrel 6, the impurities such as fixed chips and the impurities and the ethanol and the like are gradually deposited in the filter screen plate 50 under the action of the spray pipe 8, the air flow of the spray pipe 8, the cooling liquid and the impurities and the cooling liquid drops of the cooling liquid and the active carbon absorption of the cooling liquid drops to be adsorbed on the spray pipe 358, and the cooling liquid, the cooling liquid drop of the active carbon absorption pipe, and the active carbon absorption pipe 3 to obtain the cooling liquid.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The equipment for manufacturing the vacuum pump comprises a rack, a cooling liquid tank, a collecting unit and a recovering unit, wherein a clamping part for clamping a workpiece and a cutter for processing the workpiece are arranged on the rack, the equipment is characterized by further comprising a cooling liquid tank, a collecting unit and a recovering unit, cooling liquid in the cooling liquid tank is ethanol or acetone, a refrigerating screen plate is arranged above the cooling liquid tank, the top of the cooling liquid tank is open, the bottom of the cooling liquid tank is communicated with a high-pressure spray head, the clamping part and the cutter are both positioned below the high-pressure spray head, the collecting unit comprises a guide plate and a collecting barrel, the guide plate is obliquely arranged from top to bottom, the top end of the guide plate is positioned below the high-pressure spray head, the bottom end of the liquid suction pipe is communicated with the bottom of the collecting barrel, the clamping part and the cutter are both positioned above the guide plate, the recovering unit comprises a liquid suction pipe, an atomizing pipe and a blowing part, the recovering unit is vertical to the atomizing pipe and is shorter than the atomizing pipe, the bottom end of the liquid suction pipe is positioned in the collecting barrel, the top end of the refrigerating screen plate is higher than the refrigerating;

the refrigerating otter board comprises a plurality of horizontal pipes and a plurality of vertical pipes, the horizontal pipes are perpendicular to the vertical pipes, a liquid leakage board hole is formed between each two adjacent horizontal pipes and each two adjacent vertical pipes, and a plurality of convex needles used for condensing liquid drops are arranged on the horizontal pipes and the vertical pipes.

2. The apparatus for manufacturing a vacuum pump according to claim 1, characterized in that: the pipe diameter of the spray pipe is larger than that of the pipette.

3. The apparatus for manufacturing a vacuum pump according to claim 1, characterized in that: and active carbon is fixedly arranged in the liquid suction pipe.

4. The apparatus for manufacturing a vacuum pump according to claim 1, characterized in that: and a filter screen for filtering the cooling liquid introduced by the guide plate is arranged on the side wall of the collecting barrel.

5. The apparatus for manufacturing a vacuum pump according to claim 4, wherein: the bottom of deflector is equipped with the filter residue case that is used for collecting the filter residue, filter residue case and frame sliding connection.