CN107237747B - A kind of double V-shaped gear pump filter glue devices of gradual change - Google Patents
A kind of double V-shaped gear pump filter glue devices of gradual change Download PDFInfo
- Publication number
- CN107237747B CN107237747B CN201710680257.XA CN201710680257A CN107237747B CN 107237747 B CN107237747 B CN 107237747B CN 201710680257 A CN201710680257 A CN 201710680257A CN 107237747 B CN107237747 B CN 107237747B
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- pump
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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
- 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
- F04C2/18—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 with similar tooth forms
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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
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
- F05C2201/046—Stainless steel or inox, e.g. 18-8
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention belongs to rubber industry production equipment technologies, it is related to a kind of double V-shaped gear pump filter glue devices of gradual change, main structure includes the pump housing, top plate, bottom plate, feed inlet, discharge port, left plate, right side plate, left gear axis, right gear axis, sliding bearing, gear and end cover, use tooth form for the gear of double V-shaped of gradual change, the tooth form of V-shaped is made of the different helical angle of involute, the helical angle in outside is greater than the helical angle of inside, the ratcheting rotation of two gears makes rubber size or plastics be squeezed and flow along the tooth socket of gear to two sides, when rubber size or plastics flow to two end tooth intersections, due to the variation of helical angle, the tooth form of V-shaped generates component inwards to rubber size or plastics, gear is set to have the function of receiving glue inwards, to reduce the sealed pressure of the pump housing, by rubber glue The leakage rate of material or plastics reduces 30%；Its structure is simple, improves the pressurization pumping efficiency of rubber size or plastics.
Description
Technical field:
The invention belongs to rubber industry production equipment technologies, and in particular to a kind of double V-shaped gear pump filter glues of gradual change
Device carries out pressurization pumping to rubber size or plastics, with the excellent rubber masterbatch of processability and plastic matrix.
Background technique:
Rubber strainer is to act on the machinery that the impurity in sizing material or reclaimed rubber is disposed using the pushing and conveying of screw rod,
Mainly it is made of screw rod, machine barrel, filter glue head and transmission device etc.；Orifice plate and filter screen are housed, orifice plate is used on filter glue head
It supports filter screen and is discharge gate, it is the bellmouth along the expansion of sizing material flow direction, rubber strainer screw rod is long that aperture, which is 4~8mm,
Diameter is than generally 5 or so；Transmission device mainly includes gear pump, and gear pump is to rely on to be formed by work between pumping cylinder and meshing gear
Make volume variation and movement to convey liquid or be allowed to the drum pump being pressurized, forms two by two gears, the pump housing and front and rear covers
A enclosure space, when gear rotation, the volume in the space for the side that is out of gear becomes larger from small, forms vacuum, draws liquid into, tooth
The volume in the space of engagement side is taken turns from becoming smaller greatly, and liquid is squeezed into pipeline, suction chamber and discharge chamber are to lean on two gears
Path of contact come what is separated, the pressure of the outlet of gear pump depends entirely on the size of resistance at pump discharge.
A kind of arc inner tooth wheel pump disclosed in Chinese patent 201610030770.X includes internal gear, and the internal gear is in institute
Stating has multiple external tooths on the outer peripheral surface of internal gear；And external gear, the external gear, which is formed with, can accommodate the internal gear
Shell space and including multiple internal tooths, the multiple internal tooth is nibbled on the inner peripheral surface for forming shell space with the external tooth
It closing, formation first is arc-shaped between the internal tooth and adjacent internal tooth, and formation second is arc-shaped between the external tooth and adjacent external tooth,
Described first arc-shaped and the described second arc-shaped formation arc cooperation, the internal gear is equipped with internal gear copper sheathing, the internal tooth
Wheel is connected with the external gear by bearing；One kind disclosed in Chinese patent 201710307275.3 is continuously pressurized secondary gear wheel pump
Including shell, driving gear, level-one driven gear, second level driven gear and connecting pipe, driving gear, level-one driven gear and
Second level driven gear passes through driving shaft, level-one driven shaft and second level driven shaft respectively and is arranged in enclosure interior cavity, and makes
It obtains and is intermeshed between driving gear and level-one driven gear and second level driven gear, front and rear cover is solid respectively by playing lid screw
Due on the front/rear end of shell.Connecting pipe is arranged in hull outside, and pipe ends be separately connected sub-high pressure import and
Sub-high pressure outlet；A kind of novel external tooth type gear pump disclosed in Chinese patent 201621489389.1 includes the pump housing, pump cover, active
Axis, driven shaft, driving gear and driven gear, the tooth curve of driving gear and the tooth curve of driven gear are that conjugation is bent
Line, the involute of driving gear and the involute of driven gear are identical, and the pump housing is provided with gear grooved, driving gear and driven gear
Intermeshing is arranged in gear grooved, and driving gear is tangent with the side wall of gear grooved with driven gear, and pump cover is provided with first
Axis hole and the second axis hole, the shaft end of driving shaft pass through first shaft hole and are arranged in the axis hole of driving gear, and the axle body of driven shaft is set
It sets in the axis hole of driven gear, the pump housing is provided with oil guide pipe and oil exit pipe, and oil guide pipe is arranged in pump housing side and and gear grooved
Conducting, oil exit pipe are arranged in the another side of the pump housing and are connected with gear grooved；One disclosed in Chinese patent 201621391014.1
Kind of gear pump includes pump cover, the pump housing, and there are cavity in the pump housing, pump cover lid is located on the pump housing, be provided in cavity driven gear and
Driving gear, driven gear and driving gear are engaged, wherein driven gear is arranged in cavity by driven shaft, actively
Gear is arranged in cavity by driving shaft, and one end of driving shaft is pierced by pump cover, and driving shaft stretches out interference on one end of cavity
Cooperation is installed with driving gear, driven gear and driving gear and cavity is divided into oil suction chamber and oil outlet chamber, opens up on the pump cover
There are fuel feed hole and oil outlet, fuel feed hole and oil outlet are connected to cavity, and oil circuit reentrant pathway and fuel-displaced logical is offered on the pump housing
The one end in road, oil circuit reentrant pathway is connected to fuel feed hole, and the other end is connected to oil suction chamber, one end of the oil discharge passage with it is fuel-displaced
Chamber connection, the other end is connected to oil outlet, and oil discharge passage is connected to oil circuit reentrant pathway, is arranged in the oil discharge passage limited
Pressure valve, pressure limiting valve include successively steel ball, pressure limiting spring and pressure limiting valve plug；One kind disclosed in Chinese patent 201621414248.3 is new
Type gear pump is made of pedestal, motor, magnetic driver and pump head, and motor, magnetic driver are all set on pedestal, motor
Right end is provided with transmission shaft, and magnetic driver is connected to the motor by transmission shaft and is connect, and magnetic driver includes outer magnet, interior magnetic
Body, outer magnet are mounted in the middle chamber of shield, and the left end of outer magnet is fixedly connected by screw with transmission shaft, outer magnet
Inside be plugged with separation sleeve, inner magnet is mounted in the cavity among separation sleeve, and the centre of inner magnet is fixedly installed driving
Axis, the right end of drive shaft, which extends forward, to be plugged in pump head, and pump head includes pump head front cover, pump head rear cover, and fixation is set in drive shaft
It is equipped with driving gear, driving gear is meshed with driven gear；A kind of gear pump disclosed in Chinese patent 201621338084.0
Including the upper cover plate, pump case and lower cover plate being superimposed up and down, the pump case by upper cover plate a surface along upper cover plate thickness direction
Extend and formed, pump case is provided with rotor chamber, and a pair of of pitch wheel is equipped in rotor chamber, is arranged on lower cover plate
There are a fuel feed hole and an oil outlet, the fuel feed hole and oil outlet correspond respectively to above-mentioned a pair of of pitch wheel according to setting
Determine to be formed by negative pressuren zone and zone of positive pressure when the rotation of direction, further includes fixed part, which is prolonged along its length by upper cover plate
It stretches and is formed, the fixation hole for the gear pump to be fixedly mounted is provided on fixed part；Chinese patent 201621190599.0
A kind of disclosed gear pump include the pump housing, be housed in the intracorporal pump core being made of central axis, driving gear and driven gear of pump,
Connection in the oil suction chamber of the oil inlet side of pump core, the oil outlet chamber being connected to the fuel-displaced side of pump core, oil back chamber, the fuel-displaced side of pump core with it is fuel-displaced
The oil-gas separation tube being fixed on the inner sidewall of the pump housing is set between chamber, and setting connection oil-gas separation tube enters on the inner sidewall of the pump housing
Mouthful end and the fuel-displaced side of pump core, be connected to oil-gas separation tube central axis upright enter oily channel, enter be arranged on oily channel it is suitable
It is drained to the circular arc of helical structure, the position for entering to correspond to oil-gas separation tube central axis on oily channel, which opens up, is communicated to returning for oil back chamber
The outlet end in gas channel, oil-gas separation tube is communicated to oil outlet chamber；The rubber teeth wheel pump of the above patented product and current rubber strainer
There are many technical problems in process of production in only common gear pump, when especially two gears pump material, because
Pressure for rubber size or plastics is larger, and the sealing device of the rubber teeth wheel pump of rubber strainer will appear different degrees of mill
Damage, when the viscosity of rubber size or plastics is lower, the rubber teeth wheel pump of rubber strainer will appear rubber size or plastic leakage
The phenomenon that amount increases, leads to the waste and pollution of rubber size or plastics.Therefore, a kind of double V-shaped gear pump filters of gradual change are researched and developed
Adhesive dispenser, the inside component generated by the double V-shaped gear mesh rubber sizes of gradual change or plastics, realizing reduces sealing gear pump
, there is science in the effect of pressure, reduction rubber size or plastic leakage amount and applies valence, it may have good society and application very much
Prospect.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, a kind of double V-shaped gear pumps of gradual change of R & D design
Filter glue device, the inside component generated by the double V-shaped gear mesh rubber sizes of gradual change or plastics, reduces sealing gear pump pressure
Power reduces the leakage rate of rubber size or plastics during transportation.
To achieve the goals above, the main structure pump housing of the double V-shaped gear pump filter glue devices of gradual change of the present invention,
Top plate and bottom plate, feed inlet, discharge port, left plate, right side plate, left gear axis, right gear axis, sliding bearing, gear and sealed end
Lid；The top plate of rectangular plate-like structure is provided at the top of the pump housing of hollow type rectangular configuration, the bottom of the pump housing is provided with rectangular slab
The bottom plate of shape structure, the leading flank of the pump housing offer the feed inlet of circular configuration, and the trailing flank of the pump housing offers circular configuration
Discharge port, the left side of the pump housing are provided with the left plate of rectangular plate-like structure, and the pump housing has side to be provided with rectangular plate-like structure
Right side plate, the left gear axis of cylindrical structure passes through the inside that left plate enters the pump housing, and the right gear axis of cylindrical structure is worn
The inside that right side plate enters the pump housing is crossed, left gear axle position is in the lower section of right gear axis, and left gear axis and right gear axle position are in the pump housing
Internal part is arranged with the sliding bearing of cirque structure respectively, and the periphery of sliding bearing is arranged with the tooth of cirque structure
Wheel, left gear axis and right gear axis are by the box-like connection of gear teeth, on left plate and on the intersection and right side plate of left gear axis
Be respectively arranged with the end cover of circular sheet-like structures with the intersection of right gear axis, left plate and right side plate respectively with sealed end
The connection of bonnet bolt formula.
The pump housing of the present invention, top plate and bottom plate, left plate, right side plate and end cover material be stainless steel；Into
Material mouth is the channel that rubber size or plastics enter the pump housing；Discharge port is the channel of rubber size or the plastics discharge pump housing；Left tooth
Wheel shaft is identical with the structure of right gear axis, and the material of left gear axis and right gear axis is 42CrMo4, and 42CrMo4 is impact resistance, tough
The preferably quenched Steel material of property；Sliding bearing carries out location and installation to left gear axis and right gear axis respectively；Tooth-formation of gear is V
The tooth form of font, V-shaped is made of the different helical angle of involute, and the helical angle in outside is greater than the helical angle of inside.
The double V-shaped gear pump filter glue devices of gradual change of the present invention are in use, rubber size or plastics pass through feed inlet
Into the inside of the pump housing, the ratcheting rotation of two gears is squeezed rubber size or plastics and along the tooth socket of gear to two
Side flowing, when rubber size or plastics flow to two end tooth intersections, due to the variation of helical angle, the tooth form of V-shaped is to rubber
Sizing material or plastics generate component inwards, and gear is made to have the function of that receive glue, rubber size or plastics inwards is infused by discharge port
Enter in remaining production equipment, rubber size or plastics are in pressurization pumping procedure, and the sealed pressure that the pump housing is subject to is small, rubber size
Or the leakage rate of plastics reduces 30%.
Compared with prior art, the present invention using tooth form for the gear of double V-shaped of gradual change, the tooth form of V-shaped is by gradually
Burst at the seams different helical angle composition, and the helical angle in outside is greater than the helical angle of inside, and the ratcheting rotation of two gears makes rubber
Sizing material or plastics are squeezed and flow along the tooth socket of gear to two sides, when rubber size or plastics flow to two end teeth and have a common boundary
Place, due to the variation of helical angle, the tooth form of the double V-shaped of gradual change generates component inwards to rubber size or plastics, has gear
Playing the role of receiving glue inwards to reduce the sealed pressure of the pump housing reduces 30% for the leakage rate of rubber size or plastics；
Its structure is simple, and effective pressurization pumping can be carried out to rubber size or plastics, the consecutive production of rubber is realized, improves and increase
The efficiency that press pump is sent reduces the loss of rubber size or plastics, and use environment is friendly, significantly reduces production cost.
Detailed description of the invention:
Fig. 1 is main structure schematic illustration of the invention.
Fig. 2 is cross-section structure schematic illustration of the invention.
Fig. 3 is the principle schematic diagram of gear shaft of the present invention.
Specific embodiment:
The present invention is described further by way of example and in conjunction with the accompanying drawings.
Embodiment 1:
The main structure of the double V-shaped gear pump filter glue devices of the gradual change that the present embodiment is related to includes the pump housing 1, top plate 2, bottom plate
3, feed inlet 4, discharge port 5 (attached to be not shown in the figure), left plate 6, right side plate 7, left gear axis 8, right gear axis 9, sliding bearing
10, gear 11 and end cover 12；The top of the pump housing 1 of hollow type rectangular configuration is provided with the top plate 2 of rectangular plate-like structure, pump
The bottom of body 1 is provided with the bottom plate 3 of rectangular plate-like structure, and the leading flank of the pump housing 1 offers the feed inlet 4 of circular configuration, the pump housing 1
Trailing flank offer the discharge port 5 of circular configuration, the left side of the pump housing 1 is provided with the left plate 6 of rectangular plate-like structure, the pump housing
1 right side plate 7 for having side to be provided with rectangular plate-like structure, the left gear axis 8 of cylindrical structure pass through left plate 6 and enter the pump housing
1 inside, the right gear axis 9 of cylindrical structure pass through the inside that right side plate 7 enters the pump housing 1, and left gear axis 8 is located at right gear axis
The part that 9 lower section, left gear axis 8 and right gear axis 9 are located inside the pump housing 1 is arranged with the sliding bearing of cirque structure respectively
10, the periphery of sliding bearing 10 is arranged with the gear 11 of cirque structure, and left gear axis 8 and right gear axis 9 pass through 11 tooth of gear
Box-like connection is respectively arranged on left plate 6 with the intersection on the intersection of left gear axis 8 and right side plate 7 with right gear axis 9
The end cover 12 of circular sheet-like structures, left plate 6 and right side plate 7 are connect with 12 bolt type of end cover respectively.
The material of the pump housing 1, top plate 2, bottom plate 3, left plate 6, right side plate 7 and end cover 12 that the present embodiment is related to is
Stainless steel；Feed inlet 4 is the channel that rubber size or plastics enter the pump housing 1；Discharge port 5 is rubber size or the plastics discharge pump housing
1 channel；Left gear axis 8 is identical with the structure of right gear axis 9, and the material of left gear axis 8 and right gear axis 9 is 42CrMo4,
42CrMo4 is impact resistance, the preferably quenched Steel material of toughness；Sliding bearing 10 respectively carries out left gear axis 8 and right gear axis 9
Location and installation；The tooth form of gear 11 is V-shaped, and the tooth form of V-shaped is made of the different helical angle of involute, the spiral shell in outside
Swing angle is greater than the helical angle of inside.
The double V-shaped gear pump filter glue devices of the gradual change that the present embodiment is related to are in use, rubber size or plastics pass through charging
Mouthfuls 4 enter the inside of the pump housings 1, the ratcheting rotation of two gears 11 be squeezed rubber size or plastics and along gear 11
Tooth socket is flowed to two sides, when rubber size or plastics flow to two end tooth intersections, due to the variation of helical angle, the tooth of V-shaped
Shape generates component inwards to rubber size or plastics, makes gear 11 have the function of receiving glue inwards, rubber size or plastics are logical
It crosses discharge port 5 to inject in remaining production equipment, rubber size or plastics are in pressurization pumping procedure, sealing pressure that the pump housing 1 is subject to
Power is small, and the leakage rate of rubber size or plastics reduces 30%.
Claims (2)
1. a kind of double V-shaped gear pump filter glue devices of gradual change, it is characterised in that main structure includes the pump housing, top plate and bottom plate, charging
Mouth, discharge port, left plate, right side plate, left gear axis, right gear axis, sliding bearing, gear and end cover；Hollow type rectangle
The top plate of rectangular plate-like structure is provided at the top of the pump housing of structure, the bottom of the pump housing is provided with the bottom plate of rectangular plate-like structure,
The leading flank of the pump housing offers the feed inlet of circular configuration, and the trailing flank of the pump housing offers the discharge port of circular configuration, the pump housing
Left side is provided with the left plate of rectangular plate-like structure, and the right side of the pump housing is provided with the right side plate of rectangular plate-like structure, cylinder
The left gear axis of shape structure passes through the inside that left plate enters the pump housing, and the right gear axis of cylindrical structure passes through right side plate and enters pump
The inside of body, left gear axle position are distinguished in the lower section of right gear axis, left gear axis and right gear axle position in the part of pump body
It is arranged with the sliding bearing of cirque structure, the periphery of sliding bearing is arranged with the gear of cirque structure, left gear axis and the right side
Gear shaft by the box-like connection of gear teeth, on left plate with the intersection on the intersection of left gear axis and right side plate with right gear axis
Place is respectively arranged with the end cover of circular sheet-like structures, and left plate and right side plate are connect with end cover bolt type respectively；Institute
The material for stating the pump housing, top plate and bottom plate, left plate, right side plate and end cover is stainless steel；Feed inlet is rubber size or modeling
Material enters the channel of the pump housing；Discharge port is the channel of rubber size or the plastics discharge pump housing；The knot of left gear axis and right gear axis
Structure is identical, and the material of left gear axis and right gear axis is 42CrMo4, and 42CrMo4 is impact resistance, the preferably quenched steel of toughness
Material；Sliding bearing carries out location and installation to left gear axis and right gear axis respectively；Tooth-formation of gear is V-shaped, the tooth form of V-shaped
It is made of the different helical angle of involute, the helical angle in outside is greater than the helical angle of inside.
2. the double V-shaped gear pump filter glue devices of gradual change according to claim 1, it is characterised in that in use, rubber size
Or plastics enter the inside of the pump housing by feed inlet, the ratcheting rotation of two gears is squeezed rubber size or plastics and edge
Gear tooth socket to two sides flow, when rubber size or plastics flow to two end tooth intersections, due to the variation of helical angle, V
The tooth form of font generates component inwards to rubber size or plastics, and gear is made to have the function of receipts glue inwards, rubber size or
Plastics are injected in remaining production equipment by discharge port, and in pressurization pumping procedure, the pump housing is subject to close for rubber size or plastics
Seal pressure is small, and the leakage rate of rubber size or plastics reduces 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680257.XA CN107237747B (en) | 2017-08-10 | 2017-08-10 | A kind of double V-shaped gear pump filter glue devices of gradual change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680257.XA CN107237747B (en) | 2017-08-10 | 2017-08-10 | A kind of double V-shaped gear pump filter glue devices of gradual change |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237747A CN107237747A (en) | 2017-10-10 |
| CN107237747B true CN107237747B (en) | 2019-10-01 |
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| CN201710680257.XA Active CN107237747B (en) | 2017-08-10 | 2017-08-10 | A kind of double V-shaped gear pump filter glue devices of gradual change |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150410A (en) * | 2017-12-27 | 2018-06-12 | 郑州沃华机械有限公司 | A kind of smelt gear pump dedicated for rubber production device |
| CN109882406B (en) * | 2019-04-18 | 2024-05-28 | 青岛科技大学 | Double-tooth feeding type rubber gear pump |
| CN110821825A (en) * | 2019-10-28 | 2020-02-21 | 宝鸡市隆庆金属材料制品厂 | Stainless steel rotor box body, fluid pump and machining method of stainless steel rotor box body |
| CN116690945B (en) * | 2023-07-12 | 2024-01-26 | 深润防水科技(山东)有限公司 | Polymer material extrusion calendaring conveying pump and use method thereof |
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|---|---|---|---|---|
| JPS5064804A (en) * | 1973-10-11 | 1975-06-02 | ||
| CN1321223A (en) * | 1998-10-01 | 2001-11-07 | 陶氏化学公司 | Gear pump for pumping highly viscous fluids |
| CN101133250A (en) * | 2005-02-24 | 2008-02-27 | 岛津Mectem株式会社 | Gear pump |
| JP2008157131A (en) * | 2006-12-25 | 2008-07-10 | Daito Kogyo Kk | Gear pump for circulating liquid heavy metal |
| CN201358918Y (en) * | 2009-03-01 | 2009-12-09 | 浙江百纳橡塑设备有限公司 | Rubber melt gear pump |
| CN104358687A (en) * | 2014-10-30 | 2015-02-18 | 大连交通大学 | Bilinear asymmetric toothed medium-pressure gear pump |
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2017
- 2017-08-10 CN CN201710680257.XA patent/CN107237747B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5064804A (en) * | 1973-10-11 | 1975-06-02 | ||
| CN1321223A (en) * | 1998-10-01 | 2001-11-07 | 陶氏化学公司 | Gear pump for pumping highly viscous fluids |
| CN101133250A (en) * | 2005-02-24 | 2008-02-27 | 岛津Mectem株式会社 | Gear pump |
| JP2008157131A (en) * | 2006-12-25 | 2008-07-10 | Daito Kogyo Kk | Gear pump for circulating liquid heavy metal |
| CN201358918Y (en) * | 2009-03-01 | 2009-12-09 | 浙江百纳橡塑设备有限公司 | Rubber melt gear pump |
| CN104358687A (en) * | 2014-10-30 | 2015-02-18 | 大连交通大学 | Bilinear asymmetric toothed medium-pressure gear pump |
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| CN107237747A (en) | 2017-10-10 |
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