CN101749292A - Adjustable hydraulic transformer with rotary swash plate - Google Patents
Adjustable hydraulic transformer with rotary swash plate Download PDFInfo
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- CN101749292A CN101749292A CN200910244455A CN200910244455A CN101749292A CN 101749292 A CN101749292 A CN 101749292A CN 200910244455 A CN200910244455 A CN 200910244455A CN 200910244455 A CN200910244455 A CN 200910244455A CN 101749292 A CN101749292 A CN 101749292A
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- housing
- swash plate
- main shaft
- end cover
- bearing
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Abstract
The invention relates to an adjustable hydraulic transformer with a rotary swash plate, which belongs to the technical field of hydraulic transmission. The adjustable hydraulic transformer with the rotary swash plate comprises a swash plate, a plug screw of an oil return opening of a casing, a valve plate, a steady pin of the valve plate, a back end cover, a supporting sheath, a sliding bearing, a main shaft, a plunger assembly of a cylinder body, the casing, a retainer ring A, a cylindrical roller bearing, a thrust bearing, a retainer ring B, a main shaft bearing, a servomotor, an adjustment pad, a distance ring, a connection sheath, a flat key, a sealplate, a tapered roller bearing, an end cover, a worm and a worm gear; the casing is a cylinder with a hollow cavity; one end of the main shaft is supported on the casing; the swash plate is connected with the worm gear in a fastening way; the plunger assembly of the cylinder body is arranged above the swash plate, and the plunger assembly of the cylinder body and the main shaft are movably connected; the other end of the main shaft is supported in a counterbore of the back end cover; a screwed hole of the casing is provided with the plug screw of the oil return opening of the casing; and an installation worm of through holes is arranged inside a boss of the casing. The adjustable hydraulic transformer with the rotary swash plate has simple structure, convenient operation and actual application value.
Description
Technical field
The present invention relates to a kind of adjustable hydraulic transformer with rotary swash plate, belong to hydraulic transmission technology field.
Background technique
All have A (connecing high pressure fuel source), B (connecing the load executive component), three hydraulic fluid ports of T (connecing low pressure oil sources or fuel tank) on the thrust plate of existing hydraulic transformer and the rear end cover, realize transformation by the rotating flow distribution dish.In the transformation process, owing between thrust plate and the rear end cover relatively rotating of circumferencial direction arranged, hydraulic fluid port between the two is misplaced, need take special measure to keep the corresponding relation of corresponding hydraulic fluid port on three hydraulic fluid ports of A, B, T on the thrust plate and the rear end cover, the rotation angle range of thrust plate is restricted simultaneously, makes that the transformation ratio excursion of hydraulic transformer is little.
Cylinder body plunger assembly used among the present invention comprises cylinder body, plunger, piston shoes, backhaul dish, spherical hinge, butterfly spring and central spring for having the assembly of cam-type axial piston pump now.
Summary of the invention
The objective of the invention is to propose a kind of adjustable hydraulic transformer with rotary swash plate in order to solve in the existing hydraulic transformer throttling between the thrust plate and rear end cover hydraulic fluid port and the little problem of transformation ratio excursion of existing hydraulic transformer.
A kind of adjustable hydraulic transformer with rotary swash plate of the present invention comprises swash plate, housing return opening plug screw, thrust plate, thrust plate fixing pin, rear end cover, supporting sleeve, sliding bearing, main shaft, the cylinder body plunger assembly, housing, back-up ring A, roller bearing, thrust-bearing, back-up ring B, main shaft bearing, actuating motor, spacer, spacer ring, joint sleeve, flat key, sealing plate, tapered roller bearing, end cap, worm and worm wheel; Peripheral unit comprises controller;
Its annexation is: housing is one to have the cylindrical body of cavity, and three the continuous steps in upper, middle and lower are arranged at the bottom of housing cavity; One end of main shaft is supported on the getting out of a predicament or an embarrassing situation of housing by main shaft bearing, tightens with back-up ring B between main shaft and the main shaft bearing; Swash plate and worm gear are fastenedly connected; Swash plate is supported on by thrust-bearing on the intermediate step of housing, and swash plate is supported on the main shaft and by back-up ring A by roller bearing and tightens; Be the cylinder body plunger assembly above swash plate, connect by spline is movable between cylinder body plunger assembly and the main shaft; Be thrust plate above the cylinder body plunger assembly, thrust plate and rear end cover are circumferentially located by the thrust plate fixing pin; Rear end cover is a cuboid, and the inboard centre bit of rear end cover is equipped with a counterbore; The other end of main shaft is supported in the counterbore of rear end cover by sliding bearing and supporting sleeve; Rear end cover is positioned at the top of housing, and rear end cover is connected by bolt with housing; Have a through hole on the rear end cover, 3 through holes on the rear end cover are corresponding with three the flow mouths of A, B, T on the thrust plate; Side at housing has tapped hole, and the tapped hole that has on housing is equipped with housing return opening plug screw; A side that has tapped hole at housing has a semi-cylindrical boss, has a through hole in the inside of the boss of housing worm screw is installed;
Actuating motor and housing are bolted to connection; Actuating motor is fixedlyed connected with flat key by joint sleeve with the end of worm screw; Between joint sleeve and the housing and between housing and the actuating motor spacer ring is being arranged; Spacer ring is the step-like little cylindrical body of the big end diameter of an end diameter that has cavity, and the spacer ring between joint sleeve and housing is the little end of diameter, is the big end of diameter between housing and actuating motor, between spacer ring and actuating motor spacer is arranged; The outside of worm screw below joint sleeve is with sealing plate, and sealing plate is used for preventing that the oil liquid leakage in the housing from arriving extraneous; Worm screw is supported on the housing by 2 tapered roller bearings; Worm and wheel is connected with a joggle; The other end worm screw is an end cap, and end cap and housing are bolted to connection; End cap plays the axially locating effect to worm screw, and it is extraneous that end cap prevents that the oil liquid leakage in the housing from arriving, and actuating motor is connected with controller.
Working procedure when swash plate turns clockwise:
1) original state
In original state, the corner of swash plate is 0 °, mid point on the circular arc of minimum operation point BDC on the swash plate (perhaps high workload point TDC) and thrust plate flow mouth A is corresponding, and B mouth and T mouth are distributed in the both sides of the TDC and the BDC line of swash plate, and the A mouth is also divided equally by the line of the TDC of swash plate and BDC simultaneously; The A mouth communicates with high pressure fuel source, and in this position, the discharge capacity of hydraulic transformer is 0, and the solid of rotation that main shaft and cylinder body plunger assembly are formed does not rotate, and transformer is not worked, and transformation ratio is 0;
2) swash plate turns clockwise
Controller sends control signal to actuating motor, the work of driven by servomotor worm and worm wheel and drive swash plate by initial position to clockwise direction angle of swing θ; The TDC of swash plate and the line of BDC are with A mouth separated into two parts, plunger in the A port area under the effect of high-voltage oil liquid pressure and swash plate support force, produce with moment be clockwise direction, drive main spindle and cylinder body plunger assembly rotate in the direction of the clock, this moment B mouth pressure oil output, the T mouth sucks low pressure oil;
When swash plate continues rotation in the direction of the clock, the discharge capacity of hydraulic transformer increases gradually, and attainable transformation ratio also increases gradually, and when θ=60 °, its theoretical transformation ratio is 1; When θ corner during near 120 °, the attainable in theory transformation ratio of hydraulic transformer is infinitely great;
Working procedure when swash plate is rotated counterclockwise the hour hands rotation:
1) original state
In original state, the corner of swash plate is 0 °, mid point on the circular arc of minimum operation point BDC on the swash plate (perhaps high workload point TDC) and thrust plate flow mouth A is corresponding, and B mouth and T mouth are distributed in the both sides of the TDC and the BDC line of swash plate, and the A mouth is also divided equally by the line of the TDC of swash plate and BDC simultaneously; The A mouth communicates with high pressure fuel source, and in this position, the discharge capacity of hydraulic transformer is 0, and the solid of rotation that main shaft and cylinder body plunger assembly are formed does not rotate, and transformer is not worked, and transformation ratio is 0;
2) swash plate is rotated counterclockwise
Controller sends control signal to actuating motor, the work of driven by servomotor worm and worm wheel and drive swash plate by initial position to counter clockwise direction angle of swing θ; The TDC of swash plate and the line of BDC are with A mouth separated into two parts, what the plunger in the A port area produced under the effect of high-voltage oil liquid pressure and swash plate support force is counter clockwise direction with moment, drive main spindle and cylinder body plunger assembly are by rotation counterclockwise, this moment T mouth pressure oil output, the B mouth sucks low pressure oil;
When swash plate by counterclockwise continuing rotation, the discharge capacity of hydraulic transformer increases gradually, attainable transformation ratio also increases gradually, when θ=60 °, its theoretical transformation ratio is 1; When θ corner during near 120 °, the attainable in theory transformation ratio of hydraulic transformer is infinitely great.
Beneficial effect
Adjustable hydraulic transformer with rotary swash plate of the present invention is simple in structure, and handiness has actual application value.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
When Fig. 3 was original state, to the swash plate direction, transformer swash plate corner was 0 ° from rear end cover, the relative position relation of each flow window and swash plate;
Fig. 4 is after swash plate rotates the θ angle in the direction of the clock from original state, and thrust plate (3) is gone up the relative position relation schematic representation of each flow window and swash plate;
Fig. 5 is that thrust plate (3) was gone up the relative position relation schematic representation of each flow window and swash plate after swash plate rotated the θ angle from original state by counter clockwise direction;
Wherein, 1-swash plate, 2-housing return opening plug screw, 3-thrust plate, 4-thrust plate fixing pin, the 5-rear end cover, 6-supporting sleeve, 7-sliding bearing, 8-main shaft, 9-cylinder body plunger assembly, the 10-housing, 11-back-up ring A, 12-roller bearing, 13-thrust-bearing, 14-back-up ring B, 15-main shaft bearing, 16-actuating motor, 17-spacer, the 18-spacer ring, 19-joint sleeve, 20-flat key, 21-sealing plate, the 22-tapered roller bearing, 23-end cap, 24-worm screw, 25-worm gear.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Embodiment
A kind of adjustable hydraulic transformer with rotary swash plate as depicted in figs. 1 and 2, comprises swash plate 1, housing return opening plug screw 2, thrust plate 3, thrust plate fixing pin 4, rear end cover 5, supporting sleeve 6, sliding bearing 7, main shaft 8, cylinder body plunger assembly 9, housing 10, back-up ring A11, roller bearing 12, thrust-bearing 13, back-up ring B14, main shaft bearing 15, actuating motor 16, spacer 17, spacer ring 18, joint sleeve 19, flat key 20, sealing plate 21, tapered roller bearing 22, end cap 23, worm screw 24 and worm gear 25; Peripheral unit comprises controller;
Its annexation is: housing 10 is one to have the cylindrical body of cavity, and three the continuous steps in upper, middle and lower are arranged at the bottom of housing 10 cavitys; One end of main shaft 8 is supported on the getting out of a predicament or an embarrassing situation of housing 10 by main shaft bearing 15, tightens with back-up ring B14 between main shaft 8 and the main shaft bearing 15; Swash plate 1 is fastenedly connected with worm gear 25; Swash plate 1 is supported on by thrust-bearing 13 on the intermediate step of housing 10, and swash plate 1 is supported on the main shaft 8 and by back-up ring A11 by roller bearing 12 and tightens; Be cylinder body plunger assembly 9 above swash plate 1, connect by spline is movable between cylinder body plunger assembly 9 and the main shaft 8; Be thrust plate 3 above cylinder body plunger assembly 9, thrust plate 3 is circumferentially located by thrust plate fixing pin 4 with rear end cover 5; Rear end cover 5 is a cuboid, and rear end cover 5 inboard centre bits are equipped with a counterbore; The other end of main shaft 8 is supported in the counterbore of rear end cover 5 by sliding bearing 7 and supporting sleeve 6; Rear end cover 5 is positioned at the top of housing 10, and rear end cover 5 and housing 10 are connected by bolt; Have 3 through holes on the rear end cover 5,3 through holes on the rear end cover are corresponding with three the flow mouths of A, B, T on the thrust plate 3; Side at housing 10 has tapped hole, and the tapped hole that has on housing 10 is equipped with housing return opening plug screw 2; A side that has tapped hole at housing 10 has a semi-cylindrical boss, has a through hole in the inside of the boss of housing 10 worm screw 24 is installed;
Actuating motor 16 is bolted to connection with housing 10; Actuating motor 16 is fixedlyed connected with flat key 20 by joint sleeve 19 with the end of worm screw 24; Between joint sleeve 19 and the housing 10 and between housing 10 and the actuating motor 16 spacer ring 18 is being arranged; Spacer ring 18 is the step-like little cylindrical body of the big end diameter of an end diameter that has cavity, spacer ring 18 between joint sleeve 19 and housing 10 is the little end of diameter, be the big end of diameter between housing 10 and actuating motor 16, between spacer ring 18 and actuating motor 16, spacer 17 arranged; The outside of worm screw 24 below joint sleeve 19 is with sealing plate 21, and sealing plate 21 is used for preventing that the oil liquid leakage in the housing 10 from arriving extraneous; Worm screw 24 is supported on the housing 10 by 2 tapered roller bearings 22; Worm screw 24 is connected with a joggle with worm gear 25; The other end worm screw 24 is an end cap 23, and end cap 23 is bolted to connection with housing 10; 23 pairs of worm screws 24 of end cap play the axially locating effect, and it is extraneous that end cap 23 prevents that the oil liquid leakage in the housing 10 from arriving, and actuating motor 16 is connected with controller.
Working procedure when swash plate 1 turns clockwise:
1) original state
In original state, as shown in Figure 3, the corner of swash plate 1 is 0 °, and the minimum operation point BDC on the swash plate 1 is corresponding with mid point on the circular arc of thrust plate 3 flow mouth A, B mouth and T mouth are distributed in the both sides of the TDC and the BDC line of swash plate 1, and the A mouth is also divided equally by the line of the TDC of swash plate 1 and BDC simultaneously; The A mouth communicates with high pressure fuel source, and in this position, the discharge capacity of hydraulic transformer is 0, and the solid of rotation that main shaft 8 and cylinder body plunger assembly 9 are formed does not rotate, and transformer is not worked, and transformation ratio is 0;
2) swash plate 1 turns clockwise
Controller sends control signal to actuating motor 16, actuating motor 16 drive worm screws 24 and worm gear 25 work and drive swash plate 1 by initial position to clockwise direction angle of swing θ, as shown in Figure 4; The TDC of swash plate 1 and the line of BDC are with A mouth separated into two parts, and the cornerite of a part is α
1, the cornerite of another part is α
2, because α
1＞α
2, the plunger in the A port area under the effect of high-voltage oil liquid pressure and swash plate 1 support force, produce with moment be clockwise direction, drive main spindle 8 and cylinder body plunger assembly 9 rotate in the direction of the clock, this moment B mouth pressure oil output, the T mouth sucks low pressure oil;
When swash plate 1 continues rotation in the direction of the clock, the discharge capacity of hydraulic transformer increases gradually, and attainable transformation ratio also increases gradually, and when θ=60 °, its theoretical transformation ratio is 1; When θ corner during near 120 °, the attainable in theory transformation ratio of hydraulic transformer is infinitely great;
Working procedure when swash plate 1 is rotated counterclockwise the hour hands rotation:
1) original state
In original state, as shown in Figure 3, the corner of swash plate 1 is 0 °, and the high workload point TDC on the swash plate 1 is corresponding with mid point on the circular arc of thrust plate 3 flow mouth A, B mouth and T mouth are distributed in the both sides of the TDC and the BDC line of swash plate 1, and the A mouth is also divided equally by the line of the TDC of swash plate 1 and BDC simultaneously; The A mouth communicates with high pressure fuel source, and in this position, the discharge capacity of hydraulic transformer is 0, and the solid of rotation that main shaft 8 and cylinder body plunger assembly 9 are formed does not rotate, and transformer is not worked, and transformation ratio is 0;
2) swash plate 1 is rotated counterclockwise
Controller sends control signal to actuating motor 16, actuating motor 16 drive worm screws 24 and worm gear 25 work and drive swash plate 1 by initial position to counter clockwise direction angle of swing θ, as shown in Figure 5; The TDC of swash plate 1 and the line of BDC are with A mouth separated into two parts, and the cornerite of a part is α
1, the cornerite of another part is α
2, because α
1＜α
2, the plunger in the A port area under the effect of high-voltage oil liquid pressure and swash plate 1 support force, produce with moment for counterclockwise, drive main spindle 8 and cylinder body plunger assembly 9 be by rotation counterclockwise, this moment T mouth pressure oil output, the B mouth sucks low pressure oil;
When swash plate 1 by counterclockwise continuing rotation, the discharge capacity of hydraulic transformer increases gradually, attainable transformation ratio also increases gradually, when θ=60 °, its theoretical transformation ratio is 1; When θ corner during near 120 °, the attainable in theory transformation ratio of hydraulic transformer is infinitely great.
Claims (1)
1. an adjustable hydraulic transformer with rotary swash plate comprises housing return opening plug screw (2), thrust plate (3), thrust plate fixing pin (4), rear end cover (5), supporting sleeve (6), sliding bearing (7), main shaft (8), cylinder body plunger assembly (9), housing (10), back-up ring A (11), roller bearing (12), thrust-bearing (13), back-up ring B (14), main shaft bearing (15), actuating motor (16), spacer (17), spacer ring (18), joint sleeve (19), flat key (20), sealing plate (21), tapered roller bearing (22), end cap (23), worm screw (24) and worm gear (25), peripheral unit comprises controller, it is characterized in that hydraulic transformer also comprises swash plate (1);
Housing (10) is one to have the cylindrical body of cavity, and three the continuous steps in upper, middle and lower are arranged at the bottom of housing (10) cavity; One end of main shaft (8) is supported on the getting out of a predicament or an embarrassing situation of housing (10) by main shaft bearing (15), tightens with back-up ring B (14) between main shaft (8) and the main shaft bearing (15); Swash plate (1) is fastenedly connected with worm gear (25); Swash plate (1) is supported on the intermediate step of housing (10) by thrust-bearing (13), and swash plate (1) is supported on main shaft (8) by roller bearing (12) and goes up and tighten by back-up ring A (11); In the top of swash plate (1) is cylinder body plunger assembly (9), connects by spline is movable between cylinder body plunger assembly (9) and the main shaft (8); In the top of cylinder body plunger assembly (9) is thrust plate (3), and thrust plate (3) is circumferentially located by thrust plate fixing pin (4) with rear end cover (5); Rear end cover (5) is a cuboid, and the inboard centre bit of rear end cover (5) is equipped with a counterbore; The other end of main shaft (8) is supported in the counterbore of rear end cover (5) by sliding bearing (7) and supporting sleeve (6); Rear end cover (5) is positioned at the top of housing (10), and rear end cover (5) is connected by bolt with housing (10); Have 3 through holes on the rear end cover (5), 3 through holes on the rear end cover are corresponding with three the flow mouths of A, B, T on the thrust plate (3); Side at housing (10) has tapped hole, and the tapped hole that has on housing (10) is equipped with housing return opening plug screw (2); A side that has tapped hole at housing (10) has a semi-cylindrical boss, has a through hole in the inside of the boss of housing (10) worm screw (24) is installed;
Actuating motor (16) is bolted to connection with housing (10); Actuating motor (16) is fixedlyed connected with flat key (20) by joint sleeve (19) with the end of worm screw (24); Between joint sleeve (19) and the housing (10) and between housing (10) and the actuating motor (16) spacer ring (18) is being arranged; Spacer ring (18) is the step-like little cylindrical body of the big end diameter of an end diameter that has cavity, spacer ring (18) between joint sleeve (19) and housing (10) is the little end of diameter, be the big end of diameter between housing (10) and actuating motor (16), between spacer ring (18) and actuating motor (16), spacer (17) arranged; The outside of worm screw (24) below joint sleeve (19) is with sealing plate (21); Worm screw (24) is supported on the housing (10) by 2 tapered roller bearings (22); Worm screw (24) is connected with a joggle with worm gear (25); The other end worm screw (24) is end cap (23), and end cap (23) is bolted to connection with housing (10); End cap (23) plays the axially locating effect to worm screw (24), and actuating motor (16) is connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102444557A CN101749292B (en) | 2009-12-31 | 2009-12-31 | Adjustable hydraulic transformer with rotary swash plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102444557A CN101749292B (en) | 2009-12-31 | 2009-12-31 | Adjustable hydraulic transformer with rotary swash plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749292A true CN101749292A (en) | 2010-06-23 |
| CN101749292B CN101749292B (en) | 2012-06-20 |
Family
ID=42476763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102444557A Expired - Fee Related CN101749292B (en) | 2009-12-31 | 2009-12-31 | Adjustable hydraulic transformer with rotary swash plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749292B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213204A (en) * | 2011-05-23 | 2011-10-12 | 西安交通大学 | Variable device for diacytic-type axial plunger bidirectional variable pump |
| CN102562690A (en) * | 2012-02-07 | 2012-07-11 | 北京理工大学 | Low flow pulsation hydraulic pressure transformer |
| CN103671304A (en) * | 2013-12-23 | 2014-03-26 | 哈尔滨理工大学 | Integrated hydraulic transformer |
| CN105485068A (en) * | 2016-01-28 | 2016-04-13 | 吉林大学 | Serial type hydraulic transformer provided with double swash plates |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1002430C2 (en) * | 1996-02-23 | 1997-08-26 | Innas Free Piston Ifp Bv | Device for generating, using or transforming hydraulic energy. |
| US6092455A (en) * | 1998-11-06 | 2000-07-25 | Caterpillar Inc. | Hydraulic pressure transformer |
| CN201636096U (en) * | 2009-12-31 | 2010-11-17 | 北京理工大学 | Swash-plate adjustable hydraulic transformer |
-
2009
- 2009-12-31 CN CN2009102444557A patent/CN101749292B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213204A (en) * | 2011-05-23 | 2011-10-12 | 西安交通大学 | Variable device for diacytic-type axial plunger bidirectional variable pump |
| CN102562690A (en) * | 2012-02-07 | 2012-07-11 | 北京理工大学 | Low flow pulsation hydraulic pressure transformer |
| CN102562690B (en) * | 2012-02-07 | 2014-10-15 | 北京理工大学 | Low flow pulsation hydraulic pressure transformer |
| CN103671304A (en) * | 2013-12-23 | 2014-03-26 | 哈尔滨理工大学 | Integrated hydraulic transformer |
| CN103671304B (en) * | 2013-12-23 | 2015-11-04 | 哈尔滨理工大学 | A kind of integrated hydraulic transformer |
| CN105485068A (en) * | 2016-01-28 | 2016-04-13 | 吉林大学 | Serial type hydraulic transformer provided with double swash plates |
| CN105485068B (en) * | 2016-01-28 | 2017-06-06 | 吉林大学 | Two inclined plate tandem hydraulic transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101749292B (en) | 2012-06-20 |
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Granted publication date: 20120620 Termination date: 20171231 |