CN118793614B - A reciprocating vacuum pump - Google Patents
A reciprocating vacuum pump Download PDFInfo
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- CN118793614B CN118793614B CN202411281232.9A CN202411281232A CN118793614B CN 118793614 B CN118793614 B CN 118793614B CN 202411281232 A CN202411281232 A CN 202411281232A CN 118793614 B CN118793614 B CN 118793614B
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- vacuum pump
- fiber
- pump housing
- fiber blade
- blade
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The application belongs to the technical field of variable capacity pumps, in particular to a reciprocating vacuum pump, wherein two sides of a first fiber blade and a second fiber blade can be tightly attached to a cavity through a rubber coating roller by means of a bidirectional pushing effect of a compression spring on an end part adapter block, the inclined grooves formed in the second fiber blade can accelerate gas flowability, the rubber coating roller can effectively reduce the friction force of a contact surface with a wall body so as to reduce noise.
Description
Technical Field
The invention belongs to the technical field of variable displacement pumps, and particularly relates to a reciprocating vacuum pump.
Background
The vacuum pump is used for generating vacuum as the name implies, and is used for generating negative pressure so as to increase braking force, and for a diesel engine driven vehicle, the engine is ignited by compression ignition, so that the same level of vacuum pressure cannot be provided at an air inlet manifold, therefore, the vacuum pump for providing a vacuum source is required to be installed, and for a gasoline direct injection engine GDI designed for meeting the requirement of higher emission environmental protection, the same level of vacuum pressure cannot be provided at the air inlet manifold so as to meet the requirement of a vacuum brake booster system, and therefore, the vacuum pump is also required to provide a vacuum source.
The existing vacuum pump is generally a multi-blade circular cavity vacuum pump, aiming at the use of the multi-blade circular cavity vacuum pump, the working noise is relatively high, the driving experience of customers is greatly influenced, the multi-blade vacuum pump cavity space can be occupied by the multi-blade vacuum pump, the space occupied by the vacuum pump cavity can be reduced by the reciprocating spring type combined blades, the displacement is increased, the multi-blade structure compresses and pumps out gas towards the centrifugal force axis direction by means of the centrifugal force, the centrifugal force can be influenced by the rotation speed of an engine, the vacuum pump degree is unstable, and impurities such as dust contained in air pumped out from a vacuum booster can be attached to the multi-blade vacuum pump, so that the performance and efficiency of the vacuum pump are reduced.
For this, a reciprocating vacuum pump is designed to solve the above problems.
Disclosure of Invention
To solve the problems set forth in the background art. The invention provides a reciprocating vacuum pump which has the advantages that the smoke filtering effect is achieved when the vacuum pumping is finished, the end parts of blades are tightly attached to a cavity, so that the vacuum pump is better and more stable, and the service life is prolonged.
The reciprocating type vacuum pump comprises a reciprocating spring type combined vane vacuum pump, wherein the reciprocating spring type combined vane vacuum pump comprises a booster connecting pipe, a vacuum pump housing, a key joint, first fiber vanes, second fiber vanes, end connecting blocks, a spring connecting component and a one-way air inlet component, the booster connecting pipe is arranged on one side of the top of the vacuum pump housing and used for vacuumizing the interior of the vacuum booster, the key joint is rotationally connected to the outer side of the vacuum pump housing and used for connecting an engine camshaft, the first fiber vanes and the second fiber vanes are rotationally connected to the interior of the vacuum pump housing, the end connecting blocks are distributed on the opposite sides of the first fiber vanes and the second fiber vanes in a staggered manner, the spring connecting component is arranged on the opposite sides of the end connecting blocks, and the one-way air inlet component is arranged in the booster connecting pipe;
The vacuum pump comprises a vacuum pump housing, a first fiber blade, a second fiber blade, a spring connecting assembly, a first fiber blade, a second fiber blade, a first fiber blade and a second fiber blade, wherein the vacuum pump housing is connected with the first fiber blade and the second fiber blade through a connecting pipe of the vacuum pump, the first fiber blade and the second fiber blade are connected with an exhaust pipeline of the vacuum pump through a one-way air inlet assembly, the first fiber blade and the second fiber blade are connected with the exhaust pipeline of the vacuum pump housing through one-way air inlet assemblies, the first fiber blade and the second fiber blade are connected with the tail end of an engine camshaft in a threaded manner, the first fiber blade and the second fiber blade are driven to rotate through the tail end of the engine camshaft in a threaded manner, the spring connecting assembly enables elastic force to act on opposite side surfaces of the first fiber blade and the second fiber blade in a two-way, the outer end surfaces of the first fiber blade and the second fiber blade are tightly attached to the inner surface of the vacuum pump housing, and the first fiber blade and the second fiber blade are separated into two chambers with different sizes through irregular rotation.
Preferably, an inclined groove is further formed in one side of the second fiber blade, the thickness of the inclined groove gradually increases along the upper portion of the second fiber blade, and the inclined grooves are distributed on the outer side of the second fiber blade at equal intervals.
Preferably, the spring connecting assembly comprises a hollow sleeve, an adjusting rod and a compression spring, wherein the hollow sleeve is fixedly connected to the surface of the end portion adapter block, the adjusting rod is sleeved in the hollow sleeve in a sliding manner and used for connecting the first fiber blade and the second fiber blade, and two sides of the compression spring are respectively fixedly connected with the surfaces of the opposite sides of the hollow sleeve and the adjusting rod.
Preferably, the outer sides of the first fiber blade and the second fiber blade are further provided with an encapsulation roller, and the encapsulation roller is rotationally connected to the outer sides of the first fiber blade and the second fiber blade and is used for being attached to the inner surface of the vacuum pump housing.
Preferably, the unidirectional air inlet assembly comprises an air runner, a sliding valve block, a fixed valve seat, an embedded groove, an anti-air return filter cylinder and a limiting spring, wherein the air runner is arranged on the inner side of the joint of the booster connecting pipe and the vacuum pump housing, the sliding valve block is arranged at the upper end of the air runner, the embedded groove is arranged on the outer side of the fixed valve seat, the fixed valve seat is clamped at the bottom of the booster connecting pipe, the anti-air return filter cylinder is arranged at the lower end of the sliding valve block, and two ends of the limiting spring are fixedly connected with the anti-air return filter cylinder and the opposite sides of the fixed valve seat respectively.
Preferably, the inner side of the straight key joint is also fixedly connected with a tungsten carbide notch rotor, and the inner side of the notch of the tungsten carbide notch rotor is attached to the outer wall surface of the first fiber blade.
Preferably, a dust collecting net frame, a stainless steel sintering net and a cavity exhaust port are further arranged in the vacuum pump housing, the dust collecting net frame is rotationally connected in the vacuum pump housing, the stainless steel sintering net is installed in the dust collecting net frame, and the cavity exhaust port is formed in one side of the vacuum pump housing, which is close to the tungsten carbide notch rotor.
Preferably, the outside of vacuum pump shell still is provided with spacing notch, exhaust diaphragm and venthole, spacing notch is installed the outside of vacuum pump shell, the exhaust diaphragm is installed the inside of spacing notch is used for covering the venthole, the aperture of venthole with the aperture of cavity gas vent equals.
Preferably, the bottom of vacuum pump shell still is provided with dust cover, sealed lid, small-size motor, drive shaft and gets a pipeline, it installs to get a pipeline the inside of vacuum pump shell, sealed lid cup joints get the outside of a pipeline, the dust cover is installed vacuum pump shell is close to sealed upper end of lid, the motor shaft of small-size motor pass through the shaft coupling with the one end fixed connection of drive shaft, the drive shaft runs through one side of vacuum pump shell with the protruding end surface fixed connection of dust collection rack.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the two sides of the first fiber blade and the second fiber blade can be more tightly attached to the cavity through the two-way pushing effect of the compression spring on the end part switching block, the inclined grooves formed in the second fiber blade can accelerate the gas fluidity, the vacuumizing efficiency is improved, the friction force of the contact surface of the rubber coating roller with the wall body can be effectively reduced, the noise is further reduced, and the service life of the vacuum pump is prolonged.
2. According to the application, the booster connecting pipe is a one-way air inlet pipeline, gas impurities can be filtered by the anti-return filter cylinder aiming at gas flowing back in the gas flow channel, and the embedded groove inner layer at the outer side of the fixed valve seat can be filled with lubricating oil to improve the stability of the fixed valve seat, so that the abrasion of groove teeth caused by shaking is prevented, and the sealing performance is improved.
3. According to the invention, the dust collecting net frame is driven by the small motor, so that the stainless steel sintering net which fully adsorbs impurities can rotate to the pipe orifice side of the taking pipe along the inside of the vacuum pump housing, and the stainless steel sintering net can be taken out by opening the sealing cover, thus the cleaning and replacing operation can be completed, and the impurities in the air are prevented from being excessively attached to the blades, so that the device improves the running stability of the vacuum pump.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of a reciprocating spring type composite vane vacuum pump of the present invention;
FIG. 3 is a cut-away view of the interior of the vacuum pump body of the present invention;
FIG. 4 is a schematic view of the structure of the inclined grooves in the present invention;
FIG. 5 is a schematic view of a spring coupling assembly according to the present invention;
FIG. 6 is a cross-sectional view of a unidirectional air intake assembly of the present invention;
FIG. 7 is a deployment view of a fixed valve seat according to the present invention;
FIG. 8 is a diagram showing distribution of a dust collecting net frame and a stainless steel sintering net according to the present invention;
FIG. 9 is an exploded view of a vent membrane sheet and vent holes in accordance with the present invention;
Fig. 10 is a diagram showing the distribution of the pick-up line and the small motor according to the present invention.
In the figure:
1. The vacuum pump comprises a reciprocating spring type combined vane vacuum pump, a 2-booster connecting pipe, a 3-vacuum pump housing, a 4-key joint, a 5-first fiber vane, a 6-second fiber vane, a 7-end adapter block, an 8-spring connecting component, a 9-one-way air inlet component, a 10-inclined groove, a 11-hollow sleeve, a 12-adjusting rod, a 13-compression spring, a 14-encapsulation roller, a 15-gas runner, a 16-sliding valve block, a 17-fixed valve seat, a 18-embedded groove, a 19-anti-return filter cylinder, a 20-limit spring, a 21-tungsten carbide notch rotor, a 22-dust-collecting net frame, a 23-stainless steel sintering net, a 24-chamber air outlet, a 25-limit notch, a 26-exhaust diaphragm, a 27-hole, a 28-dust-proof cover, a 29-sealing cover, a 30-small motor, a 31-driving shaft, a 32-taking pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The reciprocating vacuum pump comprises a reciprocating spring type combined vane vacuum pump 1, wherein the reciprocating spring type combined vane vacuum pump 1 comprises a booster connecting pipe 2, a vacuum pump housing 3, a key joint 4, a first fiber vane 5, a second fiber vane 6, an end part connecting block 7, a spring connecting component 8 and a one-way air inlet component 9, the booster connecting pipe 2 is arranged at one side of the top of the vacuum pump housing 3 and used for vacuumizing the interior of the vacuum booster, the key joint 4 is rotationally connected at the outer side of the vacuum pump housing 3 and used for connecting an engine camshaft, the first fiber vane 5 and the second fiber vane 6 are rotationally connected at the interior of the vacuum pump housing 3, the end part connecting blocks 7 are distributed at the opposite sides of the first fiber vane 5 and the second fiber vane 6 in a staggered manner, the spring connecting component 8 is arranged at the opposite sides of the end part connecting blocks 7, and the one-way air inlet component 9 is arranged at the interior of the booster connecting pipe 2;
The booster connecting pipe 2 is connected with an exhaust pipeline of the vacuum booster, unidirectional air inlet and primary filtration inside the vacuum pump housing 3 are completed through the unidirectional air inlet component 9, the straight key joint 4 is in threaded connection with the tail end of an engine cam shaft and used for driving the first fiber blade 5 and the second fiber blade 6 to rotate, the spring connecting component 8 acts elastic force on opposite side surfaces of the first fiber blade 5 and the second fiber blade 6 in a bidirectional manner through the end part switching block 7, the outer end surfaces of the first fiber blade 5 and the second fiber blade 6 are tightly attached to the inner surface of the vacuum pump housing 3, and the vacuum pump housing 3 is separated into two chambers with different sizes through irregular rotation of the first fiber blade 5 and the second fiber blade 6 and unidirectional air exhaust is completed.
The booster connecting pipe 2 is a one-way air inlet pipeline, air flowing back in the air flow channel 15 can be filtered through the air return prevention filter cylinder 19, lubricating oil can be filled into the inner layer of the embedded groove 18 on the outer side of the fixed valve seat 17 to improve the stability of the fixed valve seat 17, groove teeth of the groove are prevented from being worn due to shaking, and accordingly sealing performance is improved, cleaning and replacement operations can be completed by opening the sealing cover 29, and excessive impurities in air are prevented from being attached to blades, so that the device improves the operation stability of a vacuum pump.
An inclined groove 10 is further formed in one side of the second fiber blade 6, the thickness of the inclined groove 10 gradually increases along the upper side of the second fiber blade 6, and the inclined grooves 10 are distributed on the outer side of the second fiber blade 6 at equal intervals.
After the booster connecting pipe 2 is connected with the exhaust end of the vacuum booster, the key joint 4 is installed on the outer side of the engine camshaft, so that the engine can synchronously drive the key joint 4 and the tungsten carbide notch rotor 21 inside to rotate during operation, and the tungsten carbide notch rotor 21 is in sliding sleeve connection with the outer side of the first fiber blade 5, so that the first fiber blade 5 and the second fiber blade 6 can flexibly rotate in the vacuum pump housing 3, and in the process, the inclined grooves 10 can be regarded as a tiny guiding structure due to the plurality of groups of inclined grooves 10 which are formed in the outer side of the second fiber blade 6. When the second fiber blades 6 rotate, the inclined grooves 10 guide air to flow along the inclined direction thereof, thereby generating a certain accelerating effect and further improving the exhaust efficiency.
The spring connecting assembly 8 comprises a hollow sleeve 11, an adjusting rod 12 and a compression spring 13, wherein the hollow sleeve 11 is fixedly connected to the surface of the end part adapter block 7, the adjusting rod 12 is sleeved in the hollow sleeve 11 in a sliding manner and used for connecting the first fiber blade 5 and the second fiber blade 6, and two sides of the compression spring 13 are respectively fixedly connected with the surfaces of the opposite sides of the hollow sleeve 11 and the adjusting rod 12.
The outer sides of the first fiber blade 5 and the second fiber blade 6 are also provided with an encapsulation roller 14, and the encapsulation roller 14 is rotationally connected to the outer sides of the first fiber blade 5 and the second fiber blade 6 and is used for being attached to the inner surface of the vacuum pump housing 3.
In the rotating process of the first fiber blade 5 and the second fiber blade 6, as the tungsten carbide notch rotor 21 is distributed on the inner side of the top of the pump, the rotating process is in an irregular state, in the process, the compression spring 13 in the hollow sleeve 11 is always in a compressed state, under the elastic holding of the spring, the adjusting rod 12 is subjected to elastic force and acts on the end face of the fiber blade, smooth displacement is realized by matching with the two groups of end-part switching blocks 7, the first fiber blade 5 and the second fiber blade 6 can fully lean against the inner wall of the vacuum pump housing 3 under the action of the elastic force, the encapsulation roller 14 is in closer fit with the cavity, the inclined groove 10 formed in the second fiber blade 6 can accelerate the gas flowability, the vacuumizing efficiency is improved, and the encapsulation roller 14 can effectively reduce the friction force of the contact surface with the wall body, further reduce the noise and prolong the service life of the vacuum pump.
The unidirectional air intake assembly 9 comprises an air flow passage 15, a sliding valve block 16, a fixed valve seat 17, an embedded groove 18, an anti-air return filter cylinder 19 and a limiting spring 20, wherein the air flow passage 15 is arranged on the inner side of the joint of the booster connecting pipe 2 and the vacuum pump housing 3, the sliding valve block 16 is arranged at the upper end of the air flow passage 15, the embedded groove 18 is arranged on the outer side of the fixed valve seat 17, the fixed valve seat 17 is clamped at the bottom of the booster connecting pipe 2, the anti-air return filter cylinder 19 is arranged at the lower end of the sliding valve block 16, and two ends of the limiting spring 20 are fixedly connected with the opposite sides of the anti-air return filter cylinder 19 and the fixed valve seat 17 respectively.
The inner side of the straight key joint 4 is also fixedly connected with a tungsten carbide notch rotor 21, and the inner side of the notch of the tungsten carbide notch rotor 21 is attached to the outer wall surface of the first fiber blade 5.
When air is introduced, the air overcomes the elasticity of the limit spring 20 to press down the sliding valve block 16 under the action of high pressure, so that the air inlet end of the air flow channel 15 is exposed to the outside, the air enters the pump through the air flow channel 15 under the negative pressure condition, the air in the air flow channel 15 directly and vertically acts on the side surface of the sliding valve block 16 to prevent the air from flowing back, so that the sliding valve block 16 is not stressed in the vertical direction, and further, the unidirectional air inlet operation is finished, meanwhile, the air can be filled into the anti-return air filter cylinder 19 to filter the air impurities, and the inner layer of the embedded groove 18 at the outer side of the fixed valve seat 17 can be filled with lubricating oil to improve the stability of the fixed valve seat 17, so that the abrasion of the groove teeth caused by shaking is prevented, and the sealing performance is improved.
The inside of vacuum pump housing 3 still is provided with dust collecting net frame 22, stainless steel sintering net 23 and cavity gas vent 24, and dust collecting net frame 22 rotates the inside of connecting at vacuum pump housing 3, and stainless steel sintering net 23 installs in dust collecting net frame 22's inside, and cavity gas vent 24 opens in vacuum pump housing 3 is close to tungsten carbide incision rotor 21's one side inside.
The outside of vacuum pump housing 3 still is provided with spacing notch 25, exhaust diaphragm 26 and venthole 27, and spacing notch 25 installs in the outside of vacuum pump housing 3, and the inside at spacing notch 25 is used for covering venthole 27 to exhaust diaphragm 26, and the aperture of venthole 27 equals with the aperture of cavity gas vent 24.
The first fiber blade 5 and the second fiber blade 6 divide the gas in the pump into big and small chambers, the big chamber extrudes the gas into the small chamber and then is discharged into the air outlet hole 27 through the chamber air outlet 24, under high pressure, the gas in the air outlet hole 27 jacks up the air exhaust diaphragm 26 from the limit notch 25, and then the air exhaust operation is achieved, and the vacuumizing effect inside the vacuum booster is achieved.
The bottom of vacuum pump housing 3 still is provided with dust cover 28, sealed lid 29, small-size motor 30, drive shaft 31 and gets a pipeline 32, gets a pipeline 32 and installs in the inside of vacuum pump housing 3, and sealed lid 29 cup joints in the outside of getting a pipeline 32, and dust cover 28 installs the upper end that vacuum pump housing 3 is close to sealed lid 29, and the motor shaft of small-size motor 30 passes through the one end fixed connection of shaft coupling and drive shaft 31, and one side that drive shaft 31 runs through vacuum pump housing 3 and dust collecting net frame 22's protruding end surface fixed connection.
The small motor 30 inside the dust cover 28 can be started, the small motor 30 drives the driving shaft 31 to rotate, the driving shaft 31 drives the dust collecting net frame 22 to rotate at the inner side of the vacuum pump body, the stainless steel sintering net 23 capable of fully adsorbing impurities can rotate to the pipe orifice side of the taking pipe 32 along the inner part of the vacuum pump housing 3, the stainless steel sintering net 23 can be taken out to complete cleaning and replacement operation by opening the sealing cover 29, excessive impurities in the air are prevented from being attached to the blades, and the device can improve the running stability of the vacuum pump.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The reciprocating vacuum pump comprises a reciprocating spring type combined vane vacuum pump (1) and is characterized in that the reciprocating spring type combined vane vacuum pump (1) comprises a booster connecting pipe (2), a vacuum pump housing (3), a key joint (4), a first fiber vane (5), a second fiber vane (6), an end part adapter block (7), a spring connecting component (8) and a one-way air inlet component (9), wherein the booster connecting pipe (2) is arranged on one side of the top of the vacuum pump housing (3) and is used for vacuumizing the interior of the vacuum booster, the key joint (4) is rotationally connected to the outer side of the vacuum pump housing (3) and is used for connecting an engine cam shaft, the first fiber vane (5) and the second fiber vane (6) are rotationally connected to the interior of the vacuum pump housing (3), the end part adapter block (7) is distributed on the opposite side of the first fiber vane (5) and the second fiber vane (6) in a staggered manner, the spring connecting component (8) is arranged on the opposite side of the end part adapter block (7), and the one-way air inlet component (9) is arranged in the booster connecting pipe (2);
One side of the second fiber blade (6) is also provided with an inclined groove (10), the thickness of the inclined groove (10) gradually increases along the direction of the second fiber blade (6) away from the spring connecting assembly (8), and the inclined grooves (10) are distributed at the back of the groove of the end part switching block (7) of the second fiber blade (6) at equal intervals;
The spring connecting assembly (8) comprises a hollow sleeve (11), an adjusting rod (12) and a compression spring (13), wherein the hollow sleeve (11) is fixedly connected to the surface of the end part switching block (7), the adjusting rod (12) is in sliding sleeve connection with the inside of the hollow sleeve (11) and is used for connecting the first fiber blade (5) and the second fiber blade (6), and two sides of the compression spring (13) are respectively fixedly connected with the surfaces of the opposite sides of the hollow sleeve (11) and the adjusting rod (12);
the outer sides of the first fiber blades (5) and the second fiber blades (6) are also provided with rubber coating rollers (14), and the rubber coating rollers (14) are rotationally connected to the outer sides of the first fiber blades (5) and the second fiber blades (6) and are used for being attached to the inner surfaces of the vacuum pump housings (3);
The one-way air inlet assembly (9) comprises an air flow passage (15), a sliding valve block (16), a fixed valve seat (17), an embedded groove (18), an anti-air return filter cylinder (19) and a limiting spring (20), wherein the air flow passage (15) is arranged on the inner side of the joint of the booster connecting pipe (2) and the vacuum pump housing (3), the sliding valve block (16) is arranged at the upper end of the air flow passage (15), the embedded groove (18) is arranged on the outer side of the fixed valve seat (17), the fixed valve seat (17) is clamped at the bottom of the booster connecting pipe (2), the anti-air return filter cylinder (19) is arranged at the lower end of the sliding valve block (16), and two ends of the limiting spring (20) are fixedly connected with the opposite sides of the anti-air return filter cylinder (19) and the fixed valve seat (17) respectively;
The inner side of the straight key joint (4) is fixedly connected with a tungsten carbide notch rotor (21), and the inner side of the notch of the tungsten carbide notch rotor (21) is attached to the outer wall surface of the first fiber blade (5);
The inside of the vacuum pump housing (3) is also provided with a dust collecting net frame (22), a stainless steel sintering net (23) and a cavity exhaust port (24), the dust collecting net frame (22) is rotationally connected inside the vacuum pump housing (3), the stainless steel sintering net (23) is installed inside the dust collecting net frame (22), and the cavity exhaust port (24) is formed inside one side of the vacuum pump housing (3) close to the tungsten carbide notch rotor (21);
The vacuum pump comprises a vacuum pump housing (3), a booster connecting pipe (2) is connected with an exhaust pipeline of the vacuum booster, unidirectional air inlet and primary filtration inside the vacuum pump housing (3) are completed through a unidirectional air inlet component (9), a straight key joint (4) is in threaded connection with the tail end of an engine cam shaft and used for driving a first fiber blade (5) and a second fiber blade (6) to rotate, a spring connecting component (8) enables elastic force to act on opposite side surfaces of the first fiber blade (5) and the second fiber blade (6) in a bidirectional manner through an end part switching block (7), the outer end surfaces of the first fiber blade (5) and the second fiber blade (6) are tightly attached to the inner surface of the vacuum pump housing (3), and the vacuum pump housing (3) is separated into two chambers with different sizes through irregular rotation of the first fiber blade (5) and the second fiber blade (6) and unidirectional air exhaust is completed.
2. The reciprocating vacuum pump of claim 1, wherein the outer side of the vacuum pump housing (3) is further provided with a limit notch (25), an exhaust diaphragm (26) and an air outlet (27), the limit notch (25) is installed on the outer side of the vacuum pump housing (3), the exhaust diaphragm (26) is installed inside the limit notch (25) and used for covering the air outlet (27), and the aperture of the air outlet (27) is equal to that of the chamber air outlet (24).
3. The reciprocating vacuum pump of claim 2, wherein a dust cover (28), a sealing cover (29), a small motor (30), a driving shaft (31) and a piece taking pipeline (32) are further arranged at the bottom of the vacuum pump housing (3), the piece taking pipeline (32) is installed inside the vacuum pump housing (3), the sealing cover (29) is sleeved on the outer side of the piece taking pipeline (32), the dust cover (28) is installed at the upper end, close to the sealing cover (29), of the vacuum pump housing (3), a motor shaft of the small motor (30) is fixedly connected with one end of the driving shaft (31) through a coupler, and the driving shaft (31) penetrates through one side of the vacuum pump housing (3) and is fixedly connected with the surface of a protruding end of the dust collecting net rack (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411281232.9A CN118793614B (en) | 2024-09-13 | 2024-09-13 | A reciprocating vacuum pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411281232.9A CN118793614B (en) | 2024-09-13 | 2024-09-13 | A reciprocating vacuum pump |
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| CN118793614A CN118793614A (en) | 2024-10-18 |
| CN118793614B true CN118793614B (en) | 2025-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411281232.9A Active CN118793614B (en) | 2024-09-13 | 2024-09-13 | A reciprocating vacuum pump |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209145871U (en) * | 2018-11-14 | 2019-07-23 | 珠海凌达压缩机有限公司 | Compressor sliding vane and compressor using same |
| CN212389526U (en) * | 2020-06-03 | 2021-01-22 | 常州市康润汽车配件有限公司 | High-performance rotary-vane vacuum pump |
| CN213144744U (en) * | 2020-03-28 | 2021-05-07 | 胡恕珍 | Vacuum pump with filtering capability |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3671941D1 (en) * | 1985-03-26 | 1990-07-19 | Barmag Barmer Maschf | Fluegelzellenpumpe. |
| GB2394006A (en) * | 2002-10-10 | 2004-04-14 | Compair Uk Ltd | Rotary sliding vane compressor |
| CN209621609U (en) * | 2019-03-08 | 2019-11-12 | 杭州光路科技有限公司 | A kind of vacuum pump |
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2024
- 2024-09-13 CN CN202411281232.9A patent/CN118793614B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209145871U (en) * | 2018-11-14 | 2019-07-23 | 珠海凌达压缩机有限公司 | Compressor sliding vane and compressor using same |
| CN213144744U (en) * | 2020-03-28 | 2021-05-07 | 胡恕珍 | Vacuum pump with filtering capability |
| CN212389526U (en) * | 2020-06-03 | 2021-01-22 | 常州市康润汽车配件有限公司 | High-performance rotary-vane vacuum pump |
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