CN106704176B - A kind of cooling system of lobe pump - Google Patents
A kind of cooling system of lobe pump Download PDFInfo
- Publication number
- CN106704176B CN106704176B CN201611101865.2A CN201611101865A CN106704176B CN 106704176 B CN106704176 B CN 106704176B CN 201611101865 A CN201611101865 A CN 201611101865A CN 106704176 B CN106704176 B CN 106704176B
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- oil
- cooling
- cooling duct
- driving shaft
- chamber
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Classifications
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0096—Heating; Cooling
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
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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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention provides a kind of cooling systems of lobe pump, belong to Roots's pump technical field.It solves the problems, such as that the cooling system cooling effect of existing lobe pump is bad.The cooling system of this lobe pump, including oil feed pump and cooler, one end perforation active shaft end of cooling duct one is simultaneously connected to shoe cream room, one end of cooling duct two penetrates through driven shaft end and is connected to shoe cream room, the other end of cooling duct one is connected with the other end of cooling duct two by cooling duct three, there is the oil suction chamber for stretching into for active shaft end and being sealed with shoe cream room on cover body one, cooler can by oil feed pump into oil suction chamber fuel feeding, cooling duct one is connected with oil suction chamber, cooling duct two is connected with shoe cream room, shoe cream room is connected to oil return with cooler.The cooling system structure of this lobe pump is more simple, and oil circuit design is more reasonable.Also, cutting oil can be contacted fully with driving shaft and driven shaft during persistent loop and take away heat, cooling effect is more preferable.
Description
Technical field
The invention belongs to Roots's pump technical fields, are related to a kind of cooling system of lobe pump.
Background technology
Lobe pump is a kind of built-in lobed rotor there are two opposite direction synchronous rotary of pump case, and between rotor, rotor with
There is slight gap between pump housing endophragm and non-touching positive displacement pump.
The type of cooling of lobe pump, for example, Chinese patent【Application number 201210275458.9；Authorization Notice No.
CN102878083B】A kind of cooling structure of disclosed Roots vaccum pump, including cylinder body and inner cavity, the front and rear ends lid of cylinder body
On be respectively provided with two mutually independent cooling water tanks, this four mutually independent cooling water tanks are communicated by cooling water pipe, will be cold
But water is forcibly introduced into, and Forced water cooling is carried out to cylinder body.The above-mentioned lobe pump type of cooling, by being carried out to lobe pump outside cylinder body
Cooling, the heat that this mode can only accelerate lobe pump generation is conducted to outside cylinder body, and cooling effect is poor.
In another example Chinese patent【Application number 201510983783.4；Application publication number CN105422446A】It is disclosed vertical
Cooling roots vacuum, driving shaft and driven shaft are vertically provided in the pump housing in formula, shape between lower cover and lower mesospore
At grease chamber, driving shaft forms the oil duct for being connected to grease chamber and upper cover cavity with driven shaft inner hollow, and upper cover cavity passes through oil return pipe
Road is connected to grease chamber, and grease chamber is interior or oil return line is equipped with the pump that the indoor cutting oil of oil is sent into upper cover cavity by oil duct
Oily device.
Above-mentioned vertical interior cooling roots vacuum, is connected to using by grease chamber with upper cover cavity, will be in grease chamber
Cutting oil be sent to cover cavity, heat is taken away by the cycle of grease chamber and the cutting oil of upper cover cavity.But it should
Disclose only a kind of oil pumping device, including axial wheel and pump oil shell in patent, axial wheel be fixed on driving shaft with it is driven
Axis lower end outside, pump oil shell are fixed in grease chamber, and pump oil shell engagement sleeves are in the outside of axial wheel, corresponding driving shaft or driven
Oil duct lower end in axis is connected to pump oil shell inner cavity.This oil pumping device is using the rotation of driving shaft and driven shaft with moving axis stream leaf
Wheel rotation, axial wheel and pump oil shell coordinate by the indoor cutting oil of oil press downward to pump oil shell inner cavity and along oil duct to
It is upper to enter upper cover inner cavity, and the cutting oil in upper cover cavity returns to grease chamber by oil return line.It has problems in that：
1, oil, the cutting oil in upper cover cavity is unidirectionally sent to be returned to by oil return line the upward cover cavity of grease chamber by axial wheel
The oil pressure of power cutting oil in upper cover cavity in grease chamber, in order to ensure the cycle oil pressure of cutting oil, grease chamber
Be required for being full of cutting oil in upper cover cavity, the oil mass demand for resulting in cutting oil is larger；2, in lobe pump
During use, if cutting oil in grease chamber and upper cover cavity due to leakage and other losses and reducing makes, cooling profit
Lubricating oil can concentrate in cover cavity because of irreversibly delivering, and the oil mass of the cutting oil in grease chamber can significantly reduce, and cause
It is reduced by the cutting oil oil pressure that axial wheel conveys, and then influences cooling effect；3, it is all set on driving shaft and driven shaft
Axial wheel is set, is equivalent to provided with two oil pumps, structure is complex, and axial wheel is cooled the reaction force of lubricating oil
Also the normal operation of driving shaft and driven shaft is influenced whether, and generate additional heat to influence cooling effect.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of cooling system of lobe pump,
Present invention solves the technical problem that how being by making oil circuit arrangement more rationally to improve cooling effect.
Object of the invention can be realized by the following technical scheme：A kind of cooling system of lobe pump, lobe pump include
The pump housing, power rotor, driven rotor, driving shaft, driven shaft, transmission gear and cover body one, the cover body one is interior to have shoe cream room,
The transmission gear is located in shoe cream room, has cooling duct one on the driving shaft, has cooling duct on the driven shaft
Two, this cooling system includes oil feed pump and cooler, which is characterized in that one end of the cooling duct one penetrates through active shaft end
And be connected to oil suction chamber, one end of the cooling duct two penetrates through driven shaft end and is connected to shoe cream room, the cooling duct
One other end is connected with the other end of cooling duct two by cooling duct three, is had for active shaft end on the cover body one
The oil suction chamber that portion stretches into and sealed with shoe cream room, the cooler can into oil suction chamber, fuel feeding, the cooling be logical by oil feed pump
Road one is connected with oil suction chamber, and the cooling duct two is connected with shoe cream room, and the shoe cream room is connected to oil return with cooler.
There is pump chamber, power rotor and driven rotor to be respectively positioned in pump chamber, driving shaft is threaded through master in the pump housing of lobe pump
For driving power rotor to rotate on turn, driven shaft is threaded through on driven rotor for driving driven rotor to rotate.This sieve
The cooling system of thatch pump will be cold from one end of driving shaft feeding through overcooled cutting oil in cooler by oil feed pump
But in channel one, cutting oil flows to the other end of driving shaft along cooling duct one, and is flowed into and cooled down by cooling duct three
Channel two, then flow back into shoe cream room, the cutting oil stored in shoe cream room comes back in cooler, completes cooling profit
The one cycle of lubricating oil.
The cooling system of this lobe pump is utilized original shoe cream room for lubricating transmission gear in lobe pump, oil pump from
Cutting oil is extracted in cooler and is sent into cooling duct one, and cutting oil flows through cooling duct one, cooling duct three
Shoe cream room is come back to cooling duct two later.In the cyclic process of cutting oil, it is only necessary to a chamber, i.e. Roots
Pump original shoe cream room, the oil mass of cutting oil compared with the existing technology in the schemes of two chambers significantly reduce.Furthermore it uses
In cycle cutting oil from cooler and by oil pump provide conveying power, with the indoor Fuel Oil Remaining of shoe cream room without
It closes so that cycle oil pressure is stablized, and ensures that cutting oil can be contacted fully with driving shaft and driven shaft during persistent loop
And take away heat.Three, by an oil pump DFF Direct Fuel Feed compared with the prior art in by two oil pumps fuel system, structure
More simple, energy consumption is also lower, and will not increase additional calorific value.The cooling system of this lobe pump is compared to existing skill
Art, oil circuit arrangement is more reasonable, under the premise of simplifying oil supply structure, reducing the usage amount of cutting oil, ensure that cold
But persistent loop of the lubricating oil in the case where stablizing oil pressure, improves cooling effect.
In the cooling system of above-mentioned lobe pump, there is circumferentially distributed cooling between the power rotor and driving shaft
Oil pocket one, the cooling duct one are connected by cooling branch one with cooling oil chamber one；The driven rotor and driven shaft it
Between there is circumferentially distributed cooling oil chamber two, the cooling duct two-way supercooling branch two is connected with cooling oil chamber two.It is logical
Cutting oil is sent in cooling oil chamber one and cooling oil chamber two by supercooling branch one and cooling branch two so that cooling and lubricating
Oil comes into full contact with power rotor and driven rotor, improves cooling effect.
Preferably, in the cooling system of above-mentioned lobe pump, the quantity of the cooling branch one and cooling branch two
It it is two, the cooling oil chamber one is axially extending along driving shaft, and two cooling branches one are located at cooling oil chamber
One both ends；The cooling oil chamber two is axially extending along driven shaft, and two cooling branches two are located at cooling oil chamber
Two both ends.Cooling duct one is divided to for two parts by cooling branch one, and cooling duct one is distributed in one axial direction of cooling oil chamber
Between two parts, two parts of cooling duct one are connected to cooling oil chamber one respectively by cooling branch 1, cooling profit
Lubricating oil can be conveyed directly from cooling oil chamber one to the other end, and the oil pressure of cutting oil is ensure that while improving cooling effect
It will not be decreased obviously；Cool down branch two, cooling duct two and cooling oil chamber two also uses identical arrangement.
In the cooling system of above-mentioned lobe pump, one outer end of the cover body is fixed with oilcan, and the oil suction chamber is located at oil
Inside shell, the relief hole being connected to oil suction chamber is provided on the cover body one, the active shaft end stretches into oil inlet across relief hole
Intracavitary, the inner surface of the cover body one have along the circumferentially disposed installation convex edge of relief hole, the installation convex edge and driving shaft
Oil sealing part is provided between peripheral surface.The installation of driving shaft is more convenient, and cutting oil enters the oil suction chamber in oilcan, and from master
Moving axis end enters cooling branch one, and the rotation of driving shaft does not interfere with fuel feeding, and cutting oil fuel feeding is made to stablize, and improves cooling
Effect.
In the cooling system of above-mentioned lobe pump, the both ends of the pump housing are respectively fixed with side cover one and side cover two, institute
It states driving shaft and driven shaft one end both passes through side cover and stretches into together in cover body one, between the driving shaft and driven shaft and side cover one
It is both provided with bearing, also there is the fuel supply chamber being connected to installing positions of bearings on the side cover one, the cooling duct two passes through
Oil-through-hole three is connected to fuel supply chamber to bearing fuel feeding.Bearing heating amount between driving shaft and driven shaft and side cover one is larger, cold
But lubricating oil is in direct contact by fuel supply chamber and bearing, can the preferably heat with bearing running, improve heat dissipation effect；Also,
Fuel supply chamber is by three fuel feeding of oil-through-hole on cooling duct two, and the charge oil pressure of cutting oil will not be by shadow in cooling duct one
It rings.In the cooling system of above-mentioned lobe pump, it includes ontology, interior that the side cover two, which uses split structure, the side cover two,
Inserts and lid, the ontology have recess outwardly, cooling are formed between the part and ontology of the embedded component insertion recess
There is the connection flange being resisted against on ontology outer end face, the lid to be resisted against above-mentioned connection flange for channel three, the embedded component
Above and by trip bolt ontology, embedded component and lid are linked together.Such structure makes the processing of cooling duct three more
It is simple.
In the cooling system of above-mentioned lobe pump, sealing cooling is all had between the driving shaft and ontology and embedded component
The oil sealing part of cutting oil in channel three also all has sealing cooling duct between the driven shaft and ontology and embedded component
The oil sealing part of cutting oil in three.Avoiding the cutting oil in cooling duct three from leaking makes oil pressure decline.
In the cooling system of above-mentioned lobe pump, be fixed with cover body two on the side cover two, the driving shaft it is close
The end of side cover two is pierced by cover body two and is connected with the driving motor of lobe pump.Such structure makes the connection of driving motor more
It is convenient, without cutting oil in cover body two, make the dismounting of lobe pump more convenient under the premise of ensureing cooling performance.
As a kind of scheme, in the cooling system of above-mentioned lobe pump, the oil sealing part, which includes inner peripheral surface, has cavity
Frame body, setting is there are two diaphragm seal made of rubber material in the frame body, and the diaphragm seal is by being arranged in frame body
It compresses piece to compress, and diaphragm seal can be deformed to the bending two ends of frame body.The part of two diaphragm seal flexural deformation forms sealing
Face so that the sealing effect of oil sealing part is more preferable.
Preferably, in the cooling system of above-mentioned lobe pump, the side of the diaphragm seal is provided with several oil sealings
Tooth.By making sealing surface contact more closely, further improve sealing effect.
Alternatively, in the cooling system of above-mentioned lobe pump, the oil sealing part is O-ring seal.
Compared with prior art, the advantages of cooling system of this lobe pump, is, the cooling system structure of this lobe pump is more
To be simple, oil circuit design is more reasonable.Also, cutting oil is during persistent loop, can fully with driving shaft and driven
Axis contacts and takes away heat, and cooling effect is more preferable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the cooling system of this lobe pump.
Fig. 2 is the partial enlarged view at A in Fig. 1.
In figure, 1, the pump housing；1a, pump chamber；2, power rotor；3, driven rotor；4, driving shaft；4a, cooling duct one；4a1,
Cooling branch one；4b, oil-through-hole one；5, driven shaft；5a, cooling duct two；5a1, cooling branch two；5b, oil-through-hole two；5c,
Oil-through-hole three；6, side cover one；6a, fuel supply chamber；6b, outage；7, side cover two；7a, cooling duct three；7b, ontology；7c, it embeds
Part；7c1, connection flange；7d, lid；7e, trip bolt；8, transmission gear；9, cover body one；9a, shoe cream room；9b, oil suction chamber；
9c, relief hole；9d, installation convex edge；10, oil feed pump；11, cooler；12, bearing；13, cooling oil chamber one；14, cooling oil chamber
Two；15, oilcan；16, oil sealing part；16a, frame body；16b, diaphragm seal；16b1, oil sealing tooth；16c, piece is compressed；17, cover body two.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, lobe pump includes the pump housing 1, power rotor 2, driven rotor 3, driving shaft 4, driven shaft 5, side cover one
6, side cover 27, cover body 1 and transmission gear 8.Power rotor 2 and driven rotor 3 are located in the pump chamber 2 of the pump housing 1, and driving shaft 4 is worn
It crosses power rotor 2 and fixes, driven shaft 5 passes through driven rotor 3 and fixes.Side cover 1 and side cover 27 are separately fixed at the pump housing 1
Both sides and pump chamber 2 is sealed, driving shaft 4 both passes through side cover 1 with 5 one end of driven shaft and is connected by transmission gear 8.Actively
Rotor 2 rotates under the drive of driving shaft 4, and driven rotor 3, which coordinates under the drive of driven shaft 5 with power rotor 2, to be rotated, and pump chamber 2 is made
Interior volume changes, and by opening up the medium entrance and media outlet that are connected to pump chamber 2 on the pump housing 1, realizes to the defeated of medium
It send.There is shoe cream room 9a, transmission gear 8 is located in shoe cream room 9a, for being lubricated cooling to transmission gear 8 in cover body 1.
This cooling system includes oil feed pump 10 and cooler 11.Specifically, as shown in Figure 1, having connection on driving shaft 4
One 4a of cooling duct at 4 both ends of driving shaft has two 5a of cooling duct at 5 both ends of connection driven shaft, cooling duct on driven shaft 5
One 4a and two 5a of cooling duct is blocked by the end of proximal cap 27.On side cover 27 have for be connected to one 4a of cooling duct and
Three 7a of cooling duct of two 5a of cooling duct, the peripheral surface of driving shaft 4 have one 4b of oil-through-hole being connected to three 7a of cooling duct,
The peripheral surface of driven shaft 5 has two 5b of oil-through-hole being connected to three 7a of cooling duct.
As shown in Figure 1, in the present embodiment, one 9 outer end of cover body is fixed with oilcan 15, and 15 inside of oilcan has oil suction chamber 9b,
The relief hole 9c being connected to oil suction chamber 9b is provided on cover body 1,4 end of driving shaft is stretched into across relief hole 9c in oil suction chamber 9b,
The inner surface of cover body 1 has along installation convex edge 9d circumferentially disposed relief hole 9c, installs the peripheral surface of convex edge 9d and driving shaft 4
Between be provided with oil sealing part 16.Cooler 11 can fuel feeding, one 4a of cooling duct and oil inlet into oil suction chamber 9b by oil feed pump 10
Chamber 9b is connected, and two 5a of cooling duct is connected with shoe cream room 9a, and shoe cream room 9a is connected to oil return with cooler 11.In actual life
In production and manufacturing process, cooler 11 can improve cooling effect of the cooler 11 to cutting oil by the cycle of refrigerant
And cooling velocity.
It is both provided with bearing 12 between driving shaft 4 and driven shaft 5 and side cover 1, also has on side cover 1 and pacifies with bearing 12
The fuel supply chamber 6a of holding position connection, two 5a of cooling duct are connected to fuel supply chamber 6a by three 5c of oil-through-hole to 12 fuel feeding of bearing, side
The outage 6b of connection fuel supply chamber 6a and shoe cream room 9a is offered on lid 1.Preferably, outage 6b faces driving cog
The cutting oil of the engagement place of wheel 8, outage 6b discharges can carry out pressure cooling to the engagement place of transmission gear 8, into one
Step improves the lubrication effect to transmission gear 8.
There is circumferentially distributed cooling oil chamber 1, one 4a of cooling duct to pass through cooling between power rotor 2 and driving shaft 4
One 4a1 of branch is connected with cooling oil chamber 1.There is circumferentially distributed cooling oil chamber two between driven rotor 3 and driven shaft 5
14, two 5a of cooling duct are connected by cooling two 5a1 of branch with cooling oil chamber 2 14.Preferably, cooling branch one
The quantity of two 5a1 of 4a1 and cooling branch is two, and cooling oil chamber 1 is axially extending along driving shaft 4, two coolings
One 4a1 of branch is located at the both ends of cooling oil chamber 1.Cooling oil chamber 2 14 is axially extending along driven shaft 5, described in two
Cooling two 5a1 of branch is located at the both ends of cooling oil chamber 2 14.
In the present embodiment, side cover 27 uses split structure, side cover 27 to include ontology 7b, embedded component 7c and lid 7d,
Ontology 7b has recess outwardly, forms three 7a of cooling duct between the part and ontology 7b of embedded component 7c insertion recesses, embeds
Part 7c has the connection flange 7c1 being resisted against on ontology 7b outer end faces, and lid 7d, which is resisted against, to be connected on flange 7c1 and pass through fastening
Ontology 7b, embedded component 7c and lid 7d are linked together by screw 7e.It is all had between driving shaft 4 and ontology 7b and embedded component 7c close
The oil sealing part 16 for sealing the cutting oil in three 7a of cooling duct, also all has between driven shaft 5 and ontology 7b and embedded component 7c
Seal the oil sealing part 16 of the cutting oil in three 7a of cooling duct.Cover body 2 17 is fixed on side cover 27, driving shaft 4 leans on
The end of proximal cap 27 is pierced by cover body 2 17 and is connected with the driving motor of lobe pump.
As depicted in figs. 1 and 2, the oil sealing part 16 used in the present embodiment includes the frame body 16a that inner peripheral surface has cavity, frame
Setting is there are two diaphragm seal 16b made of rubber material in body 16a, and diaphragm seal 16b passes through the compression piece that is arranged in frame body 16a
16c is compressed, and diaphragm seal 16b can be deformed to the bending two ends of frame body 16a.Preferably, the side of diaphragm seal 16b is set
It is equipped with several oil sealing teeth 16b1.In actual production and manufacturing process, oil sealing part 16 can also use O-ring seal.
The operation principle of the cooling system of this lobe pump is：When Roots's pump work, oil feed pump 10 will be through subcooler 11 at
The cutting oil of reason is sent into one 4a of cooling duct from one end of driving shaft 4 and is cooled down to driving shaft 4.Cooling and lubricating oil stream
When one section corresponding with power rotor 2 to driving shaft 4, by cooling one 4a1 of branch be flowed into driving shaft 4 and power rotor 2 it
Between cooling oil chamber 1, so that cutting oil is preferably contacted with the sites of heat generation of power rotor 2, improve cooling effect.It is cold
But lubricating oil returns to one 4a of cooling duct and flows to the other end of driving shaft 4, then flows into cooling duct by three 7a of cooling duct
Two 5a.Cutting oil flow to driven shaft 5 it is one section corresponding with driven rotor 3 when, be flowed by cooling two 5a1 of branch driven
Cooling oil chamber 2 14 between axis 5 and driven rotor 3, cools down driven rotor 3.Cutting oil returns to cooling duct two
In 5a, fuel supply chamber 6a is entered from three 5c extension cutting oils of oil-through-hole and to driving shaft 4 and driven shaft 5 and side cover 1
Between 12 fuel feeding of bearing, cutting oil cools down bearing 12 and returns to shoe cream room 9a after being lubricated.Remaining cooling profit
The outlet that lubricating oil is located at 5 end of driven shaft from two 5a of cooling duct flows into shoe cream room 9a.Last cutting oil is from shoe cream room 9a
Cooler 11 is returned to, the cycle of a cutting oil is completed.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (9)
1. a kind of cooling system of lobe pump, lobe pump includes the pump housing (1), power rotor (2), driven rotor (3), driving shaft
(4), driven shaft (5), transmission gear (8) and cover body one (9), the cover body one (9) is interior to have shoe cream room (9a), the driving cog
Wheel (8) is located in shoe cream room (9a), has cooling duct one (4a) on the driving shaft (4), has on the driven shaft (5) cold
But channel two (5a), this cooling system include oil feed pump (10) and cooler (11), which is characterized in that the cooling duct one
One end perforation driving shaft (4) end of (4a) simultaneously be connected to oil suction chamber (9b), the one end of the cooling duct two (5a) penetrate through from
Moving axis (5) end is simultaneously connected to shoe cream room (9a), and the other end of the cooling duct one (4a) and cooling duct two (5a's) is another
One end is connected by cooling duct three (7a), on the cover body one (9) have for driving shaft (4) end stretch into and and shoe cream room
The oil suction chamber (9b) of (9a) sealing, the cooler (11) can be described cold by oil feed pump (10) to oil suction chamber (9b) interior fuel feeding
But channel one (4a) is connected with oil suction chamber (9b), and the cooling duct two (5a) is connected with shoe cream room (9a), the oil storage
Chamber (9a) is connected to oil return with cooler (11), and the both ends of the pump housing (1) are respectively fixed with side cover one (6) and side cover two (7), institute
It includes ontology (7b), embedded component (7c) and lid (7d) to state side cover two (7) and use split structure, the side cover two (7), described
Ontology (7b) has recess outwardly, and cooling duct is formed between the part and ontology (7b) of the embedded recess of the embedded component (7c)
There is the connection flange (7c1) being resisted against on ontology (7b) outer end face, the lid (7d) to support for three (7a), the embedded component (7c)
It leans against on above-mentioned connection flange (7c1) and is linked as by trip bolt (7e) by ontology (7b), embedded component (7c) and lid (7d)
One.
2. the cooling system of lobe pump according to claim 1, which is characterized in that the power rotor (2) and driving shaft
(4) there is circumferentially distributed cooling oil chamber one (13) between, the cooling duct one (4a) by cooling branch one (4a1) with it is cold
But oil pocket one (13) is connected；There is circumferentially distributed cooling oil chamber two between the driven rotor (3) and driven shaft (5)
(14), the cooling duct two (5a) is connected by cooling branch two (5a1) with cooling oil chamber two (14).
3. the cooling system of lobe pump according to claim 2, which is characterized in that the cooling branch one (4a1) and cold
But the quantity of branch two (5a1) is two, and the cooling oil chamber one (13) is axially extending along driving shaft (4), described in two
Cooling branch one (4a1) is located at the both ends of cooling oil chamber one (13)；The cooling oil chamber two (14) is along driven shaft (5) axis
To extension, two cooling branches two (5a1) are located at the both ends of cooling oil chamber two (14).
4. the cooling system of lobe pump according to claim 1 or 2 or 3, which is characterized in that the cover body one (9) outer end
It is fixed with oilcan (15), the oil suction chamber (9b) is located at oilcan (15) inside, is provided with and oil suction chamber (9b) on the cover body one (9)
The relief hole (9c) of connection, driving shaft (4) end are stretched into across relief hole (9c) in oil suction chamber (9b), the cover body one
(9) inner surface has along the circumferentially disposed installation convex edge (9d) of relief hole (9c), the installation convex edge (9d) and driving shaft (4)
Peripheral surface between be provided with oil sealing part (16).
5. the cooling system of lobe pump according to claim 1, which is characterized in that the driving shaft (4) and driven shaft (5)
One end both passes through side cover one (6) and stretches into cover body one (9), between the driving shaft (4) and driven shaft (5) and side cover one (6)
It is both provided with bearing (12), also there is the fuel supply chamber (6a) being connected to bearing (12) installation site on the side cover one (6), it is described
Cooling duct two (5a) is connected to fuel supply chamber (6a) by oil-through-hole three (5c) to bearing (12) fuel feeding.
6. the cooling system of lobe pump according to claim 5, which is characterized in that the driving shaft (4) and ontology (7b)
The oil sealing part (16) of the cutting oil in sealing cooling duct three (7a), the driven shaft are all had between embedded component (7c)
(5) the oil sealing part of the cutting oil in sealing cooling duct three (7a) is also all had between ontology (7b) and embedded component (7c)
(16)。
7. the cooling system of lobe pump according to claim 6, which is characterized in that the oil sealing part (16) includes inner peripheral surface
Frame body (16a) with cavity, the interior setting of the frame body (16a) are described close there are two diaphragm seal (16b) made of rubber material
Mounting (16b) is compressed by the compression piece (16c) being arranged in frame body (16a), and diaphragm seal (16b) can be to frame body (16a)
Bending two ends deformation.
8. the cooling system of lobe pump according to claim 7, which is characterized in that the side of the diaphragm seal (16b) is set
It is equipped with several oil sealing teeth (16b1).
9. the cooling system of lobe pump according to claim 5, which is characterized in that be fixed with cover on the side cover two (7)
Body two (17), the driving shaft (4) are pierced by driving motor phase of the cover body two (17) with lobe pump by the end of proximal cap two (7)
Even.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611101865.2A CN106704176B (en) | 2016-12-02 | 2016-12-02 | A kind of cooling system of lobe pump |
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| CN201611101865.2A CN106704176B (en) | 2016-12-02 | 2016-12-02 | A kind of cooling system of lobe pump |
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| CN106704176A CN106704176A (en) | 2017-05-24 |
| CN106704176B true CN106704176B (en) | 2018-11-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102019100404B4 (en) * | 2018-01-22 | 2023-06-22 | Kabushiki Kaisha Toyota Jidoshokki | Motor-driven Roots pump |
| CN108252908B (en) * | 2018-03-28 | 2024-03-29 | 西安交通大学 | Self-balancing wet Roots pump |
| CN109538479A (en) * | 2019-01-21 | 2019-03-29 | 济南冶金化工设备有限公司 | Vapor compressor |
| CN110307154A (en) * | 2019-07-15 | 2019-10-08 | 烟台菱辰能源有限公司 | A kind of roots-type hydrogen gas circulating pump |
| CN113623201B (en) * | 2021-09-22 | 2023-04-18 | 浙江东歌机械设备有限公司 | Rotor pump rotor with corrosion-resistant rubber lining |
| CN114412785B (en) | 2022-03-28 | 2022-07-15 | 天津捷盛东辉保鲜科技有限公司 | Wide-temperature-range constant-temperature rotor type double-screw refrigeration compressor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1031991A (en) * | 1963-03-04 | 1966-06-08 | Bryan Donkin Co Ltd | Improvements in or relating to apparatus for compressing air or other gas |
| JPS61279793A (en) * | 1985-06-05 | 1986-12-10 | Taiko Kikai Kogyo Kk | Shaft cooling system blower |
| FR2637655B1 (en) * | 1988-10-07 | 1994-01-28 | Alcatel Cit | SCREW PUMP TYPE ROTARY MACHINE |
| DE102006038419A1 (en) * | 2006-08-17 | 2008-02-21 | Busch Produktions Gmbh | Rotor cooling for dry-running twin-shaft vacuum pumps or compressors |
| CN102242711B (en) * | 2011-07-05 | 2014-01-01 | 山东省临风鼓风机有限公司 | High-temperature resistant high-pressure-rise type Roots blower |
| CN204082557U (en) * | 2014-09-19 | 2015-01-07 | 浙江摩泰螺杆真空泵有限公司 | Vacuum pump screw rotor cooling system |
| CN204212988U (en) * | 2014-10-28 | 2015-03-18 | 马德宝真空设备集团有限公司 | A kind of screw rotor cooling unit of screw vacuum pump |
| CN205605435U (en) * | 2016-04-07 | 2016-09-28 | 台州环球真空设备制造有限公司 | Forced air cooling pump |
| CN206280243U (en) * | 2016-12-02 | 2017-06-27 | 马德宝真空设备集团有限公司 | A kind of cooling system of lobe pump |
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Denomination of invention: Cooling system of roots pump Effective date of registration: 20211019 Granted publication date: 20181106 Pledgee: Zhejiang Tailong commercial bank Taizhou branch of Limited by Share Ltd. Pledgor: MADEBAO VACUUM EQUIPMENT GROUP Co.,Ltd. Registration number: Y2021330001964 |