CN104734457A - Blade type hydrostatic pressure rotating coupler - Google Patents
Blade type hydrostatic pressure rotating coupler Download PDFInfo
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- CN104734457A CN104734457A CN201310705704.4A CN201310705704A CN104734457A CN 104734457 A CN104734457 A CN 104734457A CN 201310705704 A CN201310705704 A CN 201310705704A CN 104734457 A CN104734457 A CN 104734457A
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Abstract
The invention discloses a blade type hydrostatic pressure rotating coupler capable of transferring energy through fluid pressure energy. The rotating coupler is mainly composed of a stator, a rotor, a front flow distribution disc, a back flow distribution disc, a front end cover, a back end cover, an overflow valve and a throttling anti-explosion valve. The stator, the front flow distribution disc, the back flow distribution disc, the front end cover and the back end cover are fixed together, the rotor is supported to the front end cover and the back end cover, the shaft section, extending out of the front end cover, of the front end of the rotor is the input end connected with a prime motor, and the external shaft section of the back end cover is the output end connected with a load. Blades installed inside rotor grooves in a sliding mode slide inside a cavity, approximate to an oval, of the stator along with rotating of the rotor, fluid in the coupler is compressed through changes of the volume to push the stator and the output shaft section of the back end cover to rotate, and power is coupled to the load. The overflow valve is used for overload protection, and the throttling anti-explosion valve is used for no-load soft starting. Compared with an exiting hydraulic coupler, the blade type hydrostatic pressure rotating coupler is small in size, high in efficiency, low in cost and wider in application range.
Description
Technical field
The present invention relates to a kind of Hydraulic Elements, the hydrostatic coupler of especially a kind of vane type for being coupled between rotating shaft.
Background technology
In some plant equipment, between original machine output shaft and operating mechanism's power input shaft, use fluid coupling transferring rotational motion, to realize soft start, overload protection, reduction impact.But because fluid coupling is by the kinetic energy transferring energy of liquid, such that its volume is large, efficiency is low, cost is high.These problems limit the scope of application of fluid coupling.
Summary of the invention
The object of the invention is to invent a kind of novel rotary coupler, the functions such as soft start, overload protection, reduction impact can be met, the requirement of can realize reduced volume again, raising the efficiency, reducing costs.Its basic ideas are fluid power modes of the kinetic energy transferring energy by utilizing liquid, change into the hydrostatic mode of the pressure energy transferring energy utilizing liquid.
For realizing these objects, the technical solution used in the present invention is as follows: the hydrostatic rotary coupler of this vane type, primarily of stator, rotor, front and back valve plate, front and rear cover and accessory composition, it is characterized in that stator both ends of the surface are parallel, inside is the die cavity of a sub-elliptical; Rotor is a multidiameter, and its jack shaft section radially has some rectangular channels, middle shaft part and stator both ends of the surface spacing wide; That slides in epitrochanterian each rectangular channel is equipped with a blade, and the length of each blade is identical, and in the middle of width and rotor, shaft part is wide; The parallel front thrust plate of both ends of the surface is pressed on stator front end face, and, front thrust plate there is the front flowing hole that two run through in the hole that center has rotor front end shaft part to pass through; The parallel rear thrust plate of both ends of the surface is pressed on stator rear end face, and, rear thrust plate there is the rear flowing hole that two run through in the hole that center has rotor rear end shaft part to pass through; Front end housing is pressed on front thrust plate, front end housing has a front cavity on the end face of front thrust plate, this front cavity is communicated with the front flowing hole on front thrust plate, this front cavity has the ante-chamber duct one and ante-chamber duct two of leading to outside, and there are the fore bearing of one group of support rotor front end shaft part and the rotary seal of one group of canned rotor front end shaft part in front end housing center; The part that rotor front end shaft part stretches out front end housing is the input shaft end of this coupler; Rear end cap is pressed on rear thrust plate, cavity after rear end cap has one on the end face of rear thrust plate, this rear cavity is communicated with the rear flowing hole on rear thrust plate, this rear cavity has the back cavity duct one and back cavity duct two of leading to outside, and there is the rear bearing of one group of support rotor rear end shaft part at rear end cap center; The shaft part that rear end cap outside has one section of axis to overlap with the centre of gyration line of rotor is the output shaft end of this coupler.
The hydrostatic rotary coupler of this vane type, be further characterized in that ante-chamber duct one connects the liquid outlet of an overflow valve, back cavity duct one connects the inlet of this overflow valve; Ante-chamber duct two connects the liquid outlet of a throttling explosion-proof valve, and back cavity duct two connects the inlet of this throttling explosion-proof valve.
The hydrostatic rotary coupler of this vane type, is further characterized in that the die cavity of stator interior sub-elliptical is made up of 8 sections of curved surfaces, i.e. 2 large-diameter circular arc surfaces, 2 small-diameter circular arc surfaces and connect 4 fillet surfaces composition of these 4 circular arc cambers; The axial center section of 2 large-diameter circular arc surfaces overlaps, and the axial center section of 2 small-diameter circular arc surfaces overlaps.The axial center section of large-diameter circular arc surface be 85 degree to 95 degree with the angle of the axial center section of small-diameter circular arc surface, and the intersection of the axial center section of size circular arc camber overlaps with the centre of gyration line of rotor.
The hydrostatic rotary coupler of this vane type, be further characterized in that the position of two front flowing holes on front thrust plate is symmetrical relative to the centre of gyration line of rotor, and two front flowing hole axial center section overlap, the angle of the axial center section of the large-diameter circular arc surface of this axial center section and stator interior die cavity is 40 degree to 50 degree.
The hydrostatic rotary coupler of this vane type, be further characterized in that the position of flowing hole after two on rear thrust plate is symmetrical relative to the centre of gyration line of rotor, and flowing hole axial center section overlaps after two, the angle of the axial center section of the large-diameter circular arc surface of this axial center section and stator interior die cavity is negative 40 degree to negative 50 degree.
The hydrostatic rotary coupler of this vane type, is further characterized in that the circumferential distance at flowing hole place, front and back between two adjacent blades, is less than or equal to the circumferential distance between the flowing hole opposite edges of front and back.
The hydrostatic rotary coupler of this vane type, is further characterized in that the some bolts of front end housing, front thrust plate, stator, rear thrust plate, rear end cap are tightened to one.
The hydrostatic rotary coupler of this vane type, is further characterized in that between front end housing and front thrust plate, has static sealing ring to be sealed between front thrust plate and stator front end face, between stator rear end face and rear thrust plate, between rear thrust plate and rear end cap.
When the hydrostatic rotary coupler of this vane type works, the input shaft end of rotor is connected with prime mover, and the output shaft end on rear end cap is connected with load, and coupler inside is full of liquid, and overflow valve cuts out.Prime mover rotor driven rotates, die cavity in stator is close at epitrochanterian each blade its top under centrifugal action, the large side of blade and rotor rectangular channel form clearance seal, the front and back valve plate end face on the little side of blade and two sides also forms clearance seal, and such rotor forms a closed area between every two adjacent blades, rotor outer circle, stator die cavity, two valve plates.Each closed area is by stator die cavity calculation for mula, and when being rotated to small-diameter circular segmental arc direction by large-diameter circular segmental arc, the volume of this closed area has the trend along with direction of rotation reduces, then the liquid in this closed area forms certain pressure.This pressure produces moment to stator, drives stator to follow rotor and rotates.Thus the output shaft end of the rear end cap being fixed on one with stator is rotated, motion is coupled to load by prime mover.The groundwork state of Here it is the hydrostatic rotary coupler of this vane type, turning moment is undertaken transmitting by static pressure fluid, so call it " hydrostatic coupling ".In addition due to the elasticity that liquid is a little, this coupler has the ability that absorption is to a certain degree impacted.
If there is overload condition in load; then the pressure of enclosed area liquid raises; when pressure is higher than before and after connecting during the relief valve set pressure of cavity; overflow valve is opened, and liquid flows back to front cavity by rear cavity, forms direct inner loop; now rotor continues to rotate; and stator and rear end cap keep motionless, load stops operating, and realizes overload torsion protection function.
A throttling explosion-proof valve in parallel between rear cavity with front cavity, cavity before the liquid of rear cavity can be flowed back to by this valve when flow is less.Along with the increase of flow, the pressure drop that valve internal restriction mouth produces increases gradually, promotes spool and reduces the aperture of restriction until final plant closure.Coupler utilizes the characteristic of this valve, can make the unloaded soft start of prime mover.When namely starting working, prime mover accelerates gradually, the vane drive liquid of rotor, flows back to front cavity by rear cavity through the throttle orifice of this throttling explosion-proof valve, now stator and load motionless.When prime mover rotating speed reaches setting, fluid flow increases, and the pressure drop produced through throttle orifice increases to set point, and throttling explosion-proof valve is closed, and the inner loop of liquid stops, and coupling device internal liquid produces pressure, drives load movement.The soft start function of the hydrostatic rotary coupler of vane type realizes like this.
Beneficial effect of the present invention is: by the fluid power mode of the kinetic energy transferring energy by utilizing liquid; change into the hydrostatic mode of the pressure energy transferring energy utilizing liquid; make this Novel rotary coupler; the functions such as soft start, overload protection, reduction impact can be met, the requirement of can realize reduced volume again, raising the efficiency, reducing costs.Compared with existing fluid coupling, there is more superior technical-economic index, widely purposes.
Accompanying drawing explanation
Fig. 1 is vane type hydrostatic rotary coupler external form schematic diagram;
Fig. 2 is the section that the hydrostatic rotary coupler of vane type crosses rotor axis, and the schematic diagram that coupler body is connected with overflow valve, throttling explosion-proof valve;
Fig. 3 is the three-dimensional exploded perspective view of vane type hydrostatic rotary coupler structure;
Fig. 4 is vane type hydrostatic rotary coupler stator schematic diagram;
Fig. 5 is vane type hydrostatic rotary coupler rotor schematic diagram;
Fig. 6 is the hydrostatic rotary coupler stator of vane type, rotor, blade correlation schematic diagram;
Fig. 7 is valve plate before and after the hydrostatic rotary coupler of vane type, front and back flowing hole, stator die cavity mutual alignment schematic diagram.
In the accompanying drawings, 1 is rotor, and 2 is front end housings, and 3 is front thrust plates, and 4 is stators, 5 is rear thrust plates, and 6 is rear end caps, and 7 is rotary seal, and 8 is fore bearings, 9 are ante-chamber ducts one, 10 are ante-chamber ducts two, 11 is front cavitys, and 12 is static sealing rings, 13 is overflow valves, and 14 is blades, and 15 are back cavity ducts two, 16 is rear cavitys, 17 is rear bearings, and 18 are back cavity ducts one, 19 is throttling explosion-proof valves, and 20 is bolts, 21 is front flowing holes, and 22 is rear flowing holes, and 23 is stator die cavities, and 24 is rotor rectangular channels.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated:
As shown in Fig. 1 ~ Fig. 7, the hydrostatic rotary coupler of this vane type, forms primarily of stator 4, rotor 1, front thrust plate 3, rear thrust plate 5, front end housing 2, rear end cap 6 and accessory.Stator 4 both ends of the surface are parallel, and inside is the die cavity 23 of a sub-elliptical, and rotor 1 is a multidiameter, and its jack shaft section radially has some rectangular channels 24, middle shaft part and stator 4 both ends of the surface spacing wide; In each rectangular channel 24 on rotor 1 slide a blade 14 is housed, the length of each blade 14 is identical, width and the middle shaft part of rotor 1 wide; The parallel front thrust plate 3 of both ends of the surface is pressed on stator 4 front end face, and, front thrust plate 3 there is the front flowing hole 21 that two run through in the hole that center has rotor 1 front end shaft part to pass through; The parallel rear thrust plate 5 of both ends of the surface is pressed on stator 4 rear end face, and, rear thrust plate 5 there is the rear flowing hole 22 that two run through in the hole that center has rotor 1 rear end shaft part to pass through; Front end housing 2 is pressed on front thrust plate 3, front end housing 2 has a front cavity 11 on the end face of front thrust plate 3, this front cavity 11 is communicated with the front flowing hole 21 on front thrust plate 3, this front cavity 11 has the ante-chamber duct 1 and ante-chamber duct 2 10 of leading to outside, and there are the fore bearing 8 of one group of support rotor 1 front end shaft part and the rotary seal 7 of one group of canned rotor 1 front end shaft part in front end housing 2 center; The part that rotor 1 front end shaft part stretches out front end housing 2 is the input shaft end of this coupler; Rear end cap 6 is pressed on rear thrust plate 5, cavity 16 after rear end cap 6 has one on the end face of rear thrust plate 5, this rear cavity 16 is communicated with the rear flowing hole 22 on rear thrust plate 5, this rear cavity 16 has the back cavity duct 1 and back cavity duct 2 15 of leading to outside, and there is the rear bearing 17 of one group of support rotor 1 rear end shaft part at rear end cap 6 center; The shaft part that rear end cap 6 outside has one section of axis to overlap with the centre of gyration line of rotor 1 is the output shaft end of this coupler.
The hydrostatic rotary coupler of this vane type, ante-chamber duct 1 connects the liquid outlet of an overflow valve 13, and back cavity duct 1 connects the inlet of this overflow valve 13; Ante-chamber duct 2 10 connects the liquid outlet of a throttling explosion-proof valve 19, and back cavity duct two connects the inlet of this throttling explosion-proof valve 19.
The hydrostatic rotary coupler of this vane type, the die cavity 23 of the inner sub-elliptical of stator 4 is made up of 8 sections of curved surfaces, i.e. 2 large-diameter circular arc surfaces, 2 small-diameter circular arc surfaces and connect 4 fillet surfaces composition of these 4 circular arc cambers; The axial center section of 2 large-diameter circular arc surfaces overlaps, and the axial center section of 2 small-diameter circular arc surfaces overlaps.The angle of the axial center section of large-diameter circular arc surface and the axial center section of small-diameter circular arc surface is 85 degree to 95 degree, and the intersection of the axial center section of size circular arc camber overlaps with the centre of gyration line of rotor 1.
The hydrostatic rotary coupler of this vane type, the position of two on front thrust plate 3 front flowing holes 21 is symmetrical relative to the centre of gyration line of rotor 1, and two front flowing hole 21 axial center section overlap, the angle of the axial center section of the large-diameter circular arc surface of this axial center section and the inner die cavity 23 of stator 4 is 40 degree to 50 degree.
The hydrostatic rotary coupler of this vane type, after two on rear thrust plate 5, the position of flowing hole 22 is symmetrical relative to the centre of gyration line of rotor 1, and flowing hole 22 axial center section overlaps after two, the angle of the axial center section of the large-diameter circular arc surface of this axial center section and the inner die cavity of stator 4 23 is negative 40 degree to negative 50 degree.
The hydrostatic rotary coupler of this vane type, in the circumferential distance at front flowing hole 21 and rear flowing hole 22 place between two adjacent blades 14, is less than or equal to the circumferential distance between front flowing hole 21 and rear flowing hole 22 opposite edges.
The hydrostatic rotary coupler of this vane type, the some bolts 20 of front end housing 2, front thrust plate 3, stator 4, rear thrust plate 5, rear end cap 6 are tightened to one.
The hydrostatic rotary coupler of this vane type, has static sealing ring 12 to be sealed between front end housing 2 and front thrust plate 3, between front thrust plate 3 and stator 4 front end face, between stator 4 rear end face and rear thrust plate 5, between rear thrust plate 5 and rear end cap 6.
Although embodiment of the present invention are open as above, but its structure is not restricted to scheme described in specification and execution mode, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (8)
1. the hydrostatic rotary coupler of vane type, primarily of stator, rotor, front and back valve plate, front and rear cover and accessory composition, it is characterized in that stator both ends of the surface are parallel, inside is the die cavity of a sub-elliptical; Rotor is a multidiameter, and its jack shaft section radially has some rectangular channels, middle shaft part and stator both ends of the surface spacing wide; That slides in epitrochanterian each rectangular channel is equipped with a blade, and the length of each blade is identical, and in the middle of width and rotor, shaft part is wide; The parallel front thrust plate of both ends of the surface is pressed on stator front end face, and, front thrust plate there is the front flowing hole that two run through in the hole that center has rotor front end shaft part to pass through; The parallel rear thrust plate of both ends of the surface is pressed on stator rear end face, and, rear thrust plate there is the rear flowing hole that two run through in the hole that center has rotor rear end shaft part to pass through; Front end housing is pressed on front thrust plate, front end housing has a front cavity on the end face of front thrust plate, this front cavity is communicated with the front flowing hole on front thrust plate, this front cavity has the ante-chamber duct one and ante-chamber duct two of leading to outside, and there are the fore bearing of one group of support rotor front end shaft part and the rotary seal of one group of canned rotor front end shaft part in front end housing center; The part that rotor front end shaft part stretches out front end housing is the input shaft end of this coupler; Rear end cap is pressed on rear thrust plate, cavity after rear end cap has one on the end face of rear thrust plate, this rear cavity is communicated with the rear flowing hole on rear thrust plate, this rear cavity has the back cavity duct one and back cavity duct two of leading to outside, and there is the rear bearing of one group of support rotor rear end shaft part at rear end cap center; The shaft part that rear end cap outside has one section of axis to overlap with the centre of gyration line of rotor is the output shaft end of this coupler.
2. the hydrostatic rotary coupler of vane type as claimed in claim 1, be further characterized in that ante-chamber duct one connects the liquid outlet of an overflow valve, back cavity duct one connects the inlet of this overflow valve; Ante-chamber duct two connects the liquid outlet of a throttling explosion-proof valve, and back cavity duct two connects the inlet of this throttling explosion-proof valve.
3. the hydrostatic rotary coupler of vane type as claimed in claim 1, be further characterized in that the die cavity of stator interior sub-elliptical is made up of 8 sections of curved surfaces, i.e. 2 large-diameter circular arc surfaces, 2 small-diameter circular arc surfaces and connect 4 fillet surfaces composition of these 4 circular arc cambers; The axial center section of 2 large-diameter circular arc surfaces overlaps, and the axial center section of 2 small-diameter circular arc surfaces overlaps.The axial center section of large-diameter circular arc surface be 85 degree to 95 degree with the angle of the axial center section of small-diameter circular arc surface, and the intersection of the axial center section of size circular arc camber overlaps with the centre of gyration line of rotor.
4. the hydrostatic rotary coupler of vane type as claimed in claim 1, be further characterized in that the position of two front flowing holes on front thrust plate is symmetrical relative to the centre of gyration line of rotor, and two front flowing hole axial center section overlap, the angle of the axial center section of the large-diameter circular arc surface of this axial center section and stator interior die cavity is 40 degree to 50 degree.
5. the hydrostatic rotary coupler of vane type as claimed in claim 1, be further characterized in that the position of flowing hole after two on rear thrust plate is symmetrical relative to the centre of gyration line of rotor, and flowing hole axial center section overlaps after two, the angle of the axial center section of the large-diameter circular arc surface of this axial center section and stator interior die cavity is negative 40 degree to negative 50 degree.
6. the hydrostatic rotary coupler of vane type as claimed in claim 1, is further characterized in that the circumferential distance at flowing hole place, front and back between two adjacent blades, is less than or equal to the circumferential distance between the flowing hole opposite edges of front and back.
7. the hydrostatic rotary coupler of vane type as claimed in claim 1, is further characterized in that the some bolts of front end housing, front thrust plate, stator, rear thrust plate, rear end cap are tightened to one.
8. the hydrostatic rotary coupler of vane type as claimed in claim 1, is further characterized in that between front end housing and front thrust plate, has static sealing ring to be sealed between front thrust plate and stator front end face, between stator rear end face and rear thrust plate, between rear thrust plate and rear end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705704.4A CN104734457A (en) | 2013-12-20 | 2013-12-20 | Blade type hydrostatic pressure rotating coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705704.4A CN104734457A (en) | 2013-12-20 | 2013-12-20 | Blade type hydrostatic pressure rotating coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104734457A true CN104734457A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310705704.4A Pending CN104734457A (en) | 2013-12-20 | 2013-12-20 | Blade type hydrostatic pressure rotating coupler |
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| Country | Link |
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| CN (1) | CN104734457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223615A (en) * | 2018-02-23 | 2018-06-29 | 李永耀 | flexible speed change clutch soft start transmission device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2162560Y (en) * | 1993-01-05 | 1994-04-20 | 李昌琪 | Vane integrated hydaulic stepless speed change device |
| EP0798479A2 (en) * | 1996-03-27 | 1997-10-01 | Toyota Jidosha Kabushiki Kaisha | Clutch device |
| DE19628742A1 (en) * | 1996-07-17 | 1998-01-22 | Mannesmann Sachs Ag | Controlled operation of cooling fan for motor vehicle engine |
| JP2000074096A (en) * | 1998-08-31 | 2000-03-07 | Kayaba Ind Co Ltd | Driving coupling device |
| JP2002010193A (en) * | 2000-06-23 | 2002-01-11 | Sony Corp | Method and device for reproducing recorded data |
| CN103114993A (en) * | 2012-12-05 | 2013-05-22 | 浙江台州先顶液压有限公司 | Step blade type hydraulic machinery |
| CN103363053A (en) * | 2013-05-15 | 2013-10-23 | 浙江台州先顶液压有限公司 | Hydraulic transmission device |
-
2013
- 2013-12-20 CN CN201310705704.4A patent/CN104734457A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2162560Y (en) * | 1993-01-05 | 1994-04-20 | 李昌琪 | Vane integrated hydaulic stepless speed change device |
| EP0798479A2 (en) * | 1996-03-27 | 1997-10-01 | Toyota Jidosha Kabushiki Kaisha | Clutch device |
| DE19628742A1 (en) * | 1996-07-17 | 1998-01-22 | Mannesmann Sachs Ag | Controlled operation of cooling fan for motor vehicle engine |
| JP2000074096A (en) * | 1998-08-31 | 2000-03-07 | Kayaba Ind Co Ltd | Driving coupling device |
| JP2002010193A (en) * | 2000-06-23 | 2002-01-11 | Sony Corp | Method and device for reproducing recorded data |
| CN103114993A (en) * | 2012-12-05 | 2013-05-22 | 浙江台州先顶液压有限公司 | Step blade type hydraulic machinery |
| CN103363053A (en) * | 2013-05-15 | 2013-10-23 | 浙江台州先顶液压有限公司 | Hydraulic transmission device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223615A (en) * | 2018-02-23 | 2018-06-29 | 李永耀 | flexible speed change clutch soft start transmission device |
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Application publication date: 20150624 |