CN107061261A - A kind of gear pump with variable capacity - Google Patents
A kind of gear pump with variable capacity Download PDFInfo
- Publication number
- CN107061261A CN107061261A CN201710298105.3A CN201710298105A CN107061261A CN 107061261 A CN107061261 A CN 107061261A CN 201710298105 A CN201710298105 A CN 201710298105A CN 107061261 A CN107061261 A CN 107061261A
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- Prior art keywords
- variable
- gear
- quantitative
- pump housing
- driven
- Prior art date
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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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention discloses a kind of gear pump with variable capacity, including drive end bearing bracket and rear end cap, the quantitative pump housing and the variable pump housing, quantitative driving shaft and quantitative driven shaft, quantitative driving gear and quantitative driven gear, variable driving shaft and variable driven shaft etc., drive end bearing bracket is arranged on quantitative pump housing side, quantitative pump housing opposite side is provided with central dividing plate, central dividing plate opposite side is provided with the variable pump housing, and variable pump housing opposite side is provided with rear end cap；Variable Control end controls the upper-lower position of variable piston to change the centre-to-centre spacing of variable driven gear and variable driving gear by external force.Traditional quantitative gear pump and gear pump with variable capacity are be combined with each other by the present invention by rationally setting upper barreled tooth flank axle and lower barreled tooth flank axle, while realizing that gear pump is quantified and two kinds of functions of variable；The present invention realizes the purpose of gear pump variable by setting Variable Control end, control variable driven gear and the intermeshing centre-to-centre spacing of variable driving gear, and the present invention is innovated from principle to prior art.
Description
Technical field
The present invention relates to hydraulic machinery field, more particularly to a kind of gear pump with variable capacity.
Background technology
Gear pump is a kind of equipment that hydraulic machinery field is commonly used, and wherein gear pump with variable capacity is many special occasions again
The lower equipment for needing to use, gear pump with variable capacity is broadly divided into two kinds of internal messing gear pump with variable capacity and external toothing gear pump with variable capacity, and
The cardinal principle of existing two kinds of gear pump with variable capacity be by change the length of action between driving gear and driven gear and reality
The purpose of existing variable, based on this, the present invention is innovated from the operation principle of gear pump with variable capacity, former using a kind of new variable
Reason, while variable is be combined with each other with quantitative two kinds of functions, to adapt to increasingly complex working environment.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of gear pump with variable capacity, pass through quantifying gear pump and two kinds of work(of variable
Can be combined with each other, at the same using change gear centre away from principle realize variable.
Technical scheme used in the present invention is：A kind of gear pump with variable capacity, including drive end bearing bracket and rear end cap, the quantitative pump housing and
The variable pump housing, quantitative driving shaft and quantitative driven shaft, quantitative driving gear and quantitative driven gear, variable driving shaft and variable from
Moving axis, variable driving gear and variable driven gear, central dividing plate, upper barreled tooth flank axle and lower barreled tooth flank axle, it is characterised in that：Institute
The drive end bearing bracket stated is arranged on quantitative pump housing side by screw, and quantitative pump housing opposite side is provided with central dividing plate, described centre
Dividing plate opposite side is provided with the variable pump housing, and described variable pump housing opposite side is provided with rear end cap by screw；Described quantifies
Driving shaft is located at quantitative pump housing top position, and quantitative driving shaft one end is rotatably installed in drive end bearing bracket top by needle bearing, separately
One end is rotatably installed in central dividing plate side by needle bearing, and quantitative driving gear is coaxially installed with quantitative driving shaft；Institute
The quantitative driven shaft stated is located at quantitative pump housing lower position, and quantitative driven shaft one end is rotatably installed in drive end bearing bracket by needle bearing
Bottom, the other end is rotatably installed in central dividing plate side by needle bearing, is coaxially installed with quantitative driven shaft quantitatively driven
Gear, and be intermeshed with quantitative driving gear；The both sides of quantitative driving gear and quantitative driven gear are respectively arranged with one
Quantitative platen；Quantitative driving shaft and quantitative driven shaft are respectively arranged with internal tooth close to one end of central dividing plate；Described variable master
Moving axis is located at variable pump housing top position, and variable driving shaft one end is rotatably installed in central dividing plate side by needle bearing, separately
One end is rotatably installed on rear end cap by needle bearing；Variable driving shaft is provided circumferentially about eight active plates, eight actives
Plate is uniformly arranged on variable driving shaft circumference for one group two-by-two；Described variable driving gear is provided centrally with through hole, described logical
Hole is provided circumferentially about eight follower plates, and eight follower plates are uniformly arranged on through hole circumference for one group two-by-two；Variable driving gear
It is rotatably installed on variable driving shaft, each group of follower plate is alternately distributed with each group of active plate；The external side lower part of variable pump is set
It is equipped with to slide up and down inside Variable Control end, described Variable Control end and variable piston is installed, described variable piston and change
Back-moving spring is provided between amount control end；Variable piston top is provided with variable bearing block, and described variable driven shaft is rotated
In variable bearing block, variable driven gear is coaxially arranged with variable driven shaft, described variable driven gear is with becoming
Measure driving gear intermeshing；Variable driving gear and variable driven gear both sides are respectively arranged with before variable after platen and variable
Platen；Variable driving shaft and variable driven shaft are respectively arranged with internal tooth close to one end of central dividing plate；Described upper barreled tooth flank axle
Installed in central dividing plate top, described lower barreled tooth flank axle is arranged on central dividing plate bottom, upper barreled tooth flank axle and lower barreled tooth flank axle
Two ends are coaxially arranged with barreled tooth flank respectively；The barreled tooth flank at upper barreled tooth flank axle two ends internal tooth respectively with quantitative driving shaft one end and change
Measure the internal tooth intermeshing of driving shaft one end；The barreled tooth flank at lower barreled tooth flank axle two ends respectively with the internal tooth of quantitative driven shaft one end and
The internal tooth intermeshing of variable driven shaft one end.
Further, described quantitative pump housing both sides are respectively arranged with quantitative oil-out and quantitative oil inlet, quantitative fuel-displaced
Gear outside high pressure area on the outside of mouthful engage with quantitative driving gear and quantitative driven gear is connected, and quantifies oil inlet and quantifies
Driving gear is connected with the gear outside low pressure area on the outside of quantitative driven gear engagement；Described variable pump housing both sides are set respectively
Be equipped with variable oil-out and variable oil inlet, variable oil-out engaged with variable driving gear and variable driven gear on the outside of tooth
Wheel outside high pressure area is connected, variable oil inlet engaged with variable driving gear and variable driven gear on the outside of gear on the outside of it is low
Nip is connected.
Further, platen is on bilateral symmetry, variable driving gear after platen and variable before described variable
Region between two groups of active plates adjacent on variable driving shaft is divided on the inside of gear in higher-pressure region and gear by each group of follower plate
Side low-pressure area two parts；Platen is provided with higher-pressure region with the side that variable driving gear is in contact and entered after platen and variable before variable
Oily passage, opposite side is provided with low-pressure area oil discharge passage, and low-pressure area oil discharge passage end is provided with low-pressure area and goes out oil hole；Variable
Driving gear, which is located on the inside of gear, is provided with higher-pressure region oil inlet at high pressure zone position, described higher-pressure region oil inlet passage by with
Higher-pressure region oil inlet is connected, and gear outside high pressure area is connected with higher-pressure region on the inside of gear；Variable driving shaft is located at gear
Low-pressure area oil-out is provided with the low pressure zone position of inner side, low-pressure area oil-out passes through platen and change before variable driving shaft and variable
Low-pressure area oil discharge passage before amount on platen is connected, and most gear outside low pressure area is connected with low-pressure area on the inside of gear at last.
Further, be provided with sealing blade between two active plates in each group of described active plate, each group from
Sealing blade is provided between two follower plates in dynamic plate.
Further, axle envelope is provided between described quantitative driving shaft and drive end bearing bracket, described variable driven shaft is with becoming
Needle bearing is provided between amount bearing block.
Because present invention employs above-mentioned technical proposal, the present invention has advantages below：（1）The present invention is by rationally setting
Upper barreled tooth flank axle and lower barreled tooth flank axle, traditional quantitative gear pump and gear pump with variable capacity are be combined with each other, while realizing gear pump
Quantitative and two kinds of functions of variable, to meet special occasions demand；（2）The present invention by setting Variable Control end, control variable from
Moving gear and the intermeshing centre-to-centre spacing of variable driving gear, realize the purpose of gear pump variable, and the present invention is right from principle
Prior art is innovated.
Brief description of the drawings
Fig. 1, Fig. 2 assemble dimensional structure diagram for the overall of the present invention.
Fig. 3, Fig. 4 are the overall explosive view of the present invention.
Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, Figure 17, Figure 19, Figure 20
For the assembling dimensional structure diagram of parts thereof of the present invention.
Figure 18 is the dimensional structure diagram of variable bearing block in the present invention.
Figure 21 does not work variations per hour driving gear and variable driven gear different operating shape for Variable Control end in the present invention
State schematic diagram.
Figure 22 works for Variable Control end in the present invention, and variable driving gear changes with variable driven gear centre-to-centre spacing
Variable operation principle schematic diagram.
Drawing reference numeral：The quantitative driving shafts of 1-；2- drive end bearing brackets；3- Variable Controls end；The quantitative pump housings of 4-；5- central dividing plates；6-
The variable pump housing；7- rear end caps；The quantitative driven shafts of 8-；The quantitative driving gears of 9-；The quantitative driven gears of 10-；The quantitative platens of 11-；12-
Upper barreled tooth flank axle；13- barreled tooth flanks；Barreled tooth flank axle under 14-；15- variable driven shafts；16- variable driven gears；17- variables are actively
Gear；18- variable driving shafts；Platen before 19- variables；Platen after 20- variables；21- variable bearing blocks；22- needle bearings；23-
Axle envelope；24- seals blade；Higher-pressure region on the inside of 25- gears；Low-pressure area on the inside of 26- gears；27- variable pistons；28- back-moving springs；
29- gear outside high pressures area；30- gear outside low pressures area；The quantitative oil-outs of 401-；The quantitative oil inlets of 402-；601-, which becomes, to be measured
Hydraulic fluid port；602- variable oil inlets；1701- follower plates；1702- higher-pressure regions oil inlet；1801- active plates；1802- low-pressure areas are fuel-displaced
Mouthful；2001- higher-pressure regions oil inlet passage；2002- low-pressure areas go out oil hole；2003- low-pressure area oil discharge passages.
Embodiment
With reference to specific embodiment, the invention will be further described, the illustrative examples and explanation invented herein
For explaining the present invention, but it is not as a limitation of the invention.
As shown in Fig. 1 to Figure 20, a kind of gear pump with variable capacity, including drive end bearing bracket 2 and rear end cap 7, the quantitative pump housing 4 and variable pump
Body 6, quantitative driving shaft 1 and quantitative driven shaft 8, quantitative driving gear 9 and quantitative driven gear 10, variable driving shaft 18 and variable
Driven shaft 15, variable driving gear 17 and variable driven gear 16, central dividing plate 5, upper barreled tooth flank axle 12 and lower barreled tooth flank axle 14.
Drive end bearing bracket 2 is arranged on the quantitative side of the pump housing 4 by screw, and the quantitative opposite side of the pump housing 4 is provided with central dividing plate 5, and central dividing plate 5 is another
Side is provided with the variable pump housing 6, and the opposite side of the variable pump housing 6 is provided with rear end cap 7 by screw.Quantitative driving shaft 1 is located at quantitative
The top position of the pump housing 4, quantitative one end of driving shaft 1 is rotatably installed in the top of drive end bearing bracket 2 by needle bearing 22, and the other end passes through rolling
Needle bearing 22 is rotatably installed in the side of central dividing plate 4, and quantitative driving gear 9 is coaxially installed with quantitative driving shaft 1.It is quantitative driven
Axle 8 is located at the quantitative lower position of the pump housing 4, and quantitative one end of driven shaft 8 is rotatably installed in the bottom of drive end bearing bracket 2 by needle bearing 22,
The other end is rotatably installed in the side of central dividing plate 5 by needle bearing 22, and quantitative driven tooth is coaxially installed with quantitative driven shaft 8
Wheel 10, and be intermeshed with quantitative driving gear 9.The both sides of quantitative driving gear 9 and quantitative driven gear 10 are respectively arranged with
One quantitative platen 11.Quantitative driving shaft 1 and quantitative driven shaft 8 are respectively arranged with internal tooth close to one end of central dividing plate 5.Variable
Driving shaft 18 is located at the top position of the variable pump housing 6, and the one end of variable driving shaft 18 is rotatably installed in middle interval by needle bearing 22
The side of plate 4, the other end is rotatably installed on rear end cap 7 by needle bearing 22；Variable driving shaft 18 is provided circumferentially about eight
Active plate 1801, eight active plates 1801 are uniformly arranged on the circumference of variable driving shaft 18 for one group two-by-two.Variable driving gear 17
Be provided centrally with through hole, the through hole is provided circumferentially about eight follower plates 1701, eight follower plates 1701 two-by-two one group it is uniform
It is arranged on through hole circumference.Variable driving gear 17 is rotatably installed on variable driving shaft 18, each group of follower plate 1701 with it is every
One group of active plate 1801 is alternately distributed.The outer lower portion of the variable pump housing 6 is provided with above and below Variable Control end 3, the inside of Variable Control end 3
Variable piston 27 is slidably fitted with, back-moving spring 28 is provided between variable piston 27 and Variable Control end 3.On variable piston 27
Portion is provided with variable bearing block 21, and variable driven shaft 15 is rotatably installed in variable bearing block 21, coaxial on variable driven shaft 15
Variable driven gear 16 is provided with, variable driven gear 16 is intermeshed with variable driving gear 17.The He of variable driving gear 17
The both sides of variable driven gear 16 are respectively arranged with before variable platen 20 after platen 19 and variable.Variable driving shaft 18 and variable are driven
Axle 15 is respectively arranged with internal tooth close to one end of central dividing plate 5.Upper barreled tooth flank axle 12 is arranged on the top of central dividing plate 5, lower cydariform
Tooth axle 14 is arranged on the bottom of central dividing plate 5, and upper barreled tooth flank axle 12 and the lower two ends of barreled tooth flank axle 14 are coaxially arranged with barreled tooth flank respectively
13.The barreled tooth flank 13 at the upper two ends of barreled tooth flank axle 12 respectively with the internal tooth of quantitative one end of driving shaft 1 and the one end of variable driving shaft 18
Internal tooth is intermeshed.Internal tooth and variable of the barreled tooth flank 13 at the lower two ends of barreled tooth flank axle 14 respectively with quantitative one end of driven shaft 8 are driven
The internal tooth intermeshing of the one end of axle 15.
The quantitative both sides of the pump housing 4 are respectively arranged with quantitative oil-out 401 and quantitative oil inlet 402, quantify oil-out 401 and fixed
Amount driving gear 9 is connected with the gear outside high pressure area 29 on the outside of the quantitative engagement of driven gear 10, quantifies oil inlet 402 and fixed
Amount driving gear 9 is connected with the gear outside low pressure area 30 on the outside of the quantitative engagement of driven gear 10.Distinguish the both sides of the variable pump housing 6
It is provided with variable oil-out 601 and variable oil inlet 602, variable oil-out 601 and variable driving gear 17 and variable driven tooth
Gear outside high pressure area 29 on the outside of the engagement of wheel 16 is connected, and variable oil inlet 602 and variable driving gear 17 and variable are driven
Gear outside low pressure area 30 on the outside of the engagement of gear 16 is connected.
Platen 20 is each group on bilateral symmetry, variable driving gear 17 driven after platen 19 and variable before variable
Region between two groups of active plates 1801 adjacent on variable driving shaft 18 is divided into higher-pressure region 25 and gear on the inside of gear by plate 1701
The two parts of inner side low-pressure area 26.The side that platen 20 is in contact with variable driving gear 17 after platen 19 and variable before variable is set
There is higher-pressure region oil inlet passage 2001, opposite side is provided with low-pressure area oil discharge passage 2003, and the end of low-pressure area oil discharge passage 2003 is set
It is equipped with low-pressure area and goes out oil hole 2002.Variable driving gear 17 is provided with higher-pressure region at the position of higher-pressure region 25 on the inside of gear and entered
Hydraulic fluid port 1702, higher-pressure region oil inlet passage 2001 by being connected with higher-pressure region oil inlet 1702, by gear outside high pressure area 29 with
Higher-pressure region 25 is connected on the inside of gear, so that the hydraulic oil in gear outside high pressure area is led into higher-pressure region 25 on the inside of gear.Variable
Driving shaft 18 is located on the inside of gear is provided with low-pressure area oil-out 1802 at the position of low-pressure area 26, and low-pressure area oil-out 1802 passes through
Variable driving shaft 18 is connected with the low-pressure area oil discharge passage 2003 on platen 19 before platen before variable 19 and variable, most tooth at last
Wheel outside low pressure area 30 is connected with low-pressure area 26 on the inside of gear, so that the low pressure oil of low-pressure area 26 on the inside of gear is led into gear
Outside low pressure area 30.I.e. when variable driving gear 17 and the intermeshing of variable driven gear 16 are started working, variable driving tooth
The hydraulic oil in gear outside high pressure area 29 on the outside of wheel 17 and the engagement of variable driven gear 16 enters higher-pressure region on the inside of gear
25, so as to drive variable driving gear 17 to be rotated around variable driving shaft 18, make variable driving gear 17 and variable driven gear 16
The flank of tooth remain contact condition, while the low pressure oil on the inside of gear in low-pressure area 26 leads to gear outside low pressure area 30.
Sealing blade 24, each group of follower plate are provided between two active plates 1801 in each group of active plate 1801
Sealing blade 24 is provided between two follower plates 1701 in 1701.It is quantitative to be provided with axle envelope between driving shaft 1 and drive end bearing bracket 2
23.Needle bearing 22 is provided between variable driven shaft 15 and variable bearing block 21.
Operation principle of the present invention：The present invention is mainly adjusted by the center of variable driving gear 17 and variable driven gear 16
Away from the variable for realizing gear pump；By the way that the quantitative pump housing 4 and the variable pump housing 6 are carried out to cascade the normal work for realizing gear pump with variable capacity
Make, on the one hand the quantitative pump housing 4 of prime realizes the effect of common quantitative gear pump, on the other hand realizes the effect of gear transfer box,
Barreled tooth flank axle 12 and lower barreled tooth flank axle 14 force variable driving gear 17 and the synchronous axial system of variable driven gear 16 on auxiliary.Work as change
The amount pump housing 6 is not in working condition or when in running order but gear outside high pressure area 29 does not export hydraulic oil, variable piston
27 make variable driven gear 16 reach maximum engagement state, now, pump with variable driving gear 17 under the effect of back-moving spring 28
Discharge capacity it is maximum, as shown in figure 21；When the variable pump housing 6 is in running order and exports hydraulic oil, gear outside high pressure area 29
Hydraulic oil force variable driven gear 16 to be moved to the direction of Variable Control end 3 so that variable driven gear 16 and variable actively
The centre-to-centre spacing increase of gear 17, while hydraulic oil is via the higher-pressure region oil inlet passage on platen 20 after platen before variable 19 and variable
Entering variable driving gear 17 is located at gear inner side higher-pressure region 25 so that variable driving gear 17 is relative to variable driving shaft 18
Rotation, so that variable driven gear 16 and variable driving gear 17 are constantly in engagement in multivariable process, such as schemes
Shown in 22；When variable pump entering variable state, it is passed through hydraulic oil by Variable Control end 3 to drive variable piston 27 to variable
The direction of driving gear 17 move so that two gear centres away from reduce with reach reduce discharge capacity purpose.
Claims (5)
1. a kind of gear pump with variable capacity, including drive end bearing bracket（2）And rear end cap（7）, the quantitative pump housing（4）With the variable pump housing（6）, it is quantitative main
Moving axis（1）With quantitative driven shaft（8）, quantitative driving gear（9）With quantitative driven gear（10）, variable driving shaft（18）And variable
Driven shaft（15）, variable driving gear（17）With variable driven gear（16）, central dividing plate 5, upper barreled tooth flank axle（12）With lower drum
Shape tooth axle（14）, it is characterised in that：Described drive end bearing bracket（2）The quantitative pump housing is arranged on by screw（4）Side, the quantitative pump housing
（4）Opposite side is provided with central dividing plate（5）, described central dividing plate（5）Opposite side is provided with the variable pump housing（6）, described change
Measure the pump housing（6）Opposite side is provided with rear end cap by screw（7）；Described quantitative driving shaft（1）Positioned at the quantitative pump housing（4）Top
Position, quantitative driving shaft（1）One end passes through needle bearing（22）It is rotatably installed in drive end bearing bracket（22）Top, the other end passes through needle roller
Bearing（22）It is rotatably installed in central dividing plate（44）Quantitative driving gear is coaxially installed with side, quantitative driving shaft 1（9）；Institute
The quantitative driven shaft stated（8）Positioned at the quantitative pump housing（4）Lower position, quantitative driven shaft（8）One end passes through needle bearing（22）Turn
It is dynamic to be arranged on drive end bearing bracket（2）Bottom, the other end passes through needle bearing（22）It is rotatably installed in central dividing plate（5）Side, it is quantitative from
Moving axis（8）On be coaxially installed with quantitative driven gear（10）, and with quantitative driving gear（9）Intermeshing；Quantitative driving gear
（9）With quantitative driven gear（10）Both sides be respectively arranged with a quantitative platen（11）；Quantitative driving shaft（1）It is quantitatively driven
Axle（8）Close to central dividing plate（5）One end be respectively arranged with internal tooth；Described variable driving shaft（18）Positioned at the variable pump housing（6）
Top position, variable driving shaft（18）One end passes through needle bearing（22）It is rotatably installed in central dividing plate（4）Side, the other end leads to
Cross needle bearing（22）It is rotatably installed in rear end cap（7）On；Variable driving shaft（18）It is provided circumferentially about to have eight active plates
（1801）, eight active plates（1801）One group is uniformly arranged in variable driving shaft two-by-two（18）On circumference；Described variable is actively
Gear（17）Through hole is provided centrally with, the through hole is provided circumferentially about there are eight follower plates（1701）, eight follower plates（1701）
One group is uniformly arranged on through hole circumference two-by-two；Variable driving gear（17）It is rotatably installed in variable driving shaft（18）On, it is each
Group follower plate（1701）With each group of active plate（1801）It is alternately distributed；The variable pump housing（6）Outer lower portion is provided with Variable Control
End（3）, described Variable Control end（3）Inside, which is slided up and down, is provided with variable piston（27）, described variable piston（27）With
Variable Control end（3）Between be provided with back-moving spring（28）；Variable piston（27）Top is provided with variable bearing block（21）, it is described
Variable driven shaft（15）It is rotatably installed in variable bearing block（21）In, variable driven shaft（15）On to be coaxially arranged with variable driven
Gear（16）, described variable driven gear（16）With variable driving gear（17）Intermeshing；Variable driving gear（17）With
Variable driven gear（16）Both sides are respectively arranged with platen before variable（19）With platen after variable（20）；Variable driving shaft（18）With
Variable driven shaft（15）Close to central dividing plate（5）One end be respectively arranged with internal tooth；Described upper barreled tooth flank axle（12）It is arranged on
Central dividing plate（5）Top, described lower barreled tooth flank axle（14）Installed in central dividing plate（5）Bottom, upper barreled tooth flank axle（12）With under
Barreled tooth flank axle（14）Two ends are coaxially arranged with barreled tooth flank respectively（13）；Upper barreled tooth flank axle（12）The barreled tooth flank at two ends（13）Respectively with
Quantitative driving shaft（1）The internal tooth and variable driving shaft of one end（18）The internal tooth intermeshing of one end；Lower barreled tooth flank axle（14）Two ends
Barreled tooth flank（13）Respectively with quantitative driven shaft（8）The internal tooth and variable driven shaft of one end（15）The internal tooth intermeshing of one end.
2. a kind of gear pump with variable capacity as claimed in claim 1, it is characterised in that：The described quantitative pump housing（4）Both sides are set respectively
It is equipped with quantitative oil-out（401）With quantitative oil inlet（402）, quantitative oil-out（401）With quantitative driving gear（9）With it is quantitative from
Moving gear（10）Gear outside high pressure area on the outside of engagement（29）It is connected, quantitative oil inlet（402）With quantitative driving gear（9）
With quantitative driven gear（10）Gear outside low pressure area on the outside of engagement（30）It is connected；The described variable pump housing（6）Both sides point
Variable oil-out is not provided with（601）With variable oil inlet（602）, variable oil-out（601）With variable driving gear（17）With
Variable driven gear（16）Gear outside high pressure area on the outside of engagement（29）It is connected, variable oil inlet（602）With variable actively
Gear（17）With variable driven gear（16）Gear outside low pressure area on the outside of engagement（30）It is connected.
3. a kind of gear pump with variable capacity as described in claim 1 and 2, it is characterised in that：Platen before described variable（19）And change
Platen after amount（20）For bilateral symmetry, variable driving gear（17）On each group of follower plate（1701）By variable driving shaft
（18）Upper two groups of adjacent active plates（1801）Between region be divided into higher-pressure region on the inside of gear（25）With low-pressure area on the inside of gear
（26）Two parts；Platen before variable（19）With platen after variable（20）With variable driving gear（17）The side being in contact is provided with
Higher-pressure region oil inlet passage（2001）, opposite side is provided with low-pressure area oil discharge passage（2003）, low-pressure area oil discharge passage（2003）End
Portion is provided with low-pressure area and goes out oil hole（2002）；Variable driving gear（17）Positioned at higher-pressure region on the inside of gear（25）Set at position
There is higher-pressure region oil inlet（1702）, described higher-pressure region oil inlet passage（2001）By with higher-pressure region oil inlet（1702）It is connected
It is logical, by gear outside high pressure area（29）With higher-pressure region on the inside of gear（25）It is connected；Variable driving shaft（18）On the inside of gear
Low-pressure area（26）Low-pressure area oil-out is provided with position（1802）, low-pressure area oil-out（1802）Pass through variable driving shaft（18）
With platen before variable（19）With platen before variable（19）On low-pressure area oil discharge passage（2003）It is connected, most at last on the outside of gear
Low-pressure area（30）With low-pressure area on the inside of gear（26）It is connected.
4. a kind of gear pump with variable capacity as claimed in claim 1, it is characterised in that：Each group of described active plate（1801）In
Two active plates（1801）Between be provided with sealing blade（24）, each group of follower plate（1701）In two follower plates（1701）
Between be provided with sealing blade（24）.
5. a kind of gear pump with variable capacity as claimed in claim 1, it is characterised in that：Described quantitative driving shaft（1）With drive end bearing bracket
（2）Between be provided with axle envelope（23）, described variable driven shaft（15）With variable bearing block（21）Between be provided with needle bearing
（22）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298105.3A CN107061261B (en) | 2017-04-30 | 2017-04-30 | A kind of gear pump with variable capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298105.3A CN107061261B (en) | 2017-04-30 | 2017-04-30 | A kind of gear pump with variable capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061261A true CN107061261A (en) | 2017-08-18 |
| CN107061261B CN107061261B (en) | 2019-05-10 |
Family
ID=59603837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710298105.3A Active CN107061261B (en) | 2017-04-30 | 2017-04-30 | A kind of gear pump with variable capacity |
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| CN (1) | CN107061261B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374865A (en) * | 2019-08-25 | 2019-10-25 | 符鹏 | A kind of gear pump with variable capacity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK146454C (en) * | 1976-09-15 | 1984-03-19 | Crepaco | GEAR PUMP |
| CN1007646B (en) * | 1985-05-16 | 1990-04-18 | 杨德贵 | Radial-movable variable-dispacement gear pump (motor) |
| CN201407170Y (en) * | 2009-05-18 | 2010-02-17 | 苗新波 | Variable gear wheel pump |
| CN204738961U (en) * | 2015-06-02 | 2015-11-04 | 西北工业大学 | Variable type gear pump |
| CN105041639A (en) * | 2015-08-27 | 2015-11-11 | 刘凡 | External gearing variable gear pump |
| CN205135990U (en) * | 2015-09-23 | 2016-04-06 | 郑秀美 | Novel external gear pump |
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2017
- 2017-04-30 CN CN201710298105.3A patent/CN107061261B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK146454C (en) * | 1976-09-15 | 1984-03-19 | Crepaco | GEAR PUMP |
| CN1007646B (en) * | 1985-05-16 | 1990-04-18 | 杨德贵 | Radial-movable variable-dispacement gear pump (motor) |
| CN201407170Y (en) * | 2009-05-18 | 2010-02-17 | 苗新波 | Variable gear wheel pump |
| CN204738961U (en) * | 2015-06-02 | 2015-11-04 | 西北工业大学 | Variable type gear pump |
| CN105041639A (en) * | 2015-08-27 | 2015-11-11 | 刘凡 | External gearing variable gear pump |
| CN205135990U (en) * | 2015-09-23 | 2016-04-06 | 郑秀美 | Novel external gear pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374865A (en) * | 2019-08-25 | 2019-10-25 | 符鹏 | A kind of gear pump with variable capacity |
| CN110374865B (en) * | 2019-08-25 | 2020-10-13 | 符鹏 | Variable gear pump |
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| Publication number | Publication date |
|---|---|
| CN107061261B (en) | 2019-05-10 |
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Effective date of registration: 20190417 Address after: 211500 Nanjing Minority Industrial Concentration Zone, Jiangsu Province (No. 7 Lingfeng Road, Zhuzhen, Liuhe District) Applicant after: Nanjing Warner Machinery and Electrical Equipment Manufacturing Co., Ltd. Address before: 072659 No. 7, Western District, Bei Zhuang village, Dingli County, Baoding, Hebei Applicant before: Liu Zekui |
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