CN202690823U - Plunger type turbulent flow device for reducing idle loss - Google Patents
Plunger type turbulent flow device for reducing idle loss Download PDFInfo
- Publication number
- CN202690823U CN202690823U CN 201220243514 CN201220243514U CN202690823U CN 202690823 U CN202690823 U CN 202690823U CN 201220243514 CN201220243514 CN 201220243514 CN 201220243514 U CN201220243514 U CN 201220243514U CN 202690823 U CN202690823 U CN 202690823U
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- flow
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- plunger type
- housing
- turbulent flow
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Abstract
The utility model provides a plunger type turbulent flow device for reducing idle loss. The plunger type turbulent flow device comprises a casing and a turbulent flow assembly installed on the casing, the turbulent flow assembly comprises a turbulent flow disc, a spring seat and a guide rod, the turbulent flow disc and the spring seat are fixed on the guide rod, the casing comprises an upper end and a lower end, a turbulent flow disc seat is fixed at the upper end of the casing, a conduit is fixed at the lower end of the casing, the turbulent flow disc seat is located between the turbulent flow disc and the spring seat, the spring seat is contained in the casing, one end of a pressure spring is supported on the spring seat, and the other end of the pressure spring is supported at the end of the casing and sleeved on an outer periphery of an outer cylinder of the conduit extending in the casing. The plunger type turbulent flow device can be installed after a driven wheel of hydraulic machinery is slightly changed, the turbulent flow disc are located at different positions to change fluid circulation states in a hydraulic machine to reduce idle loss of the hydraulic machinery according to a force balance principle. The plunger type turbulent flow device is simple in structure, easy to manufacture, assemble and install, cheap in price, convenient to maintain and convenient to use in large-batch hydraulic machinery.
Description
[technical field]
The utility model relates to the hydraulic machine technical field, particularly a kind of plunger type disturbing flow device for reducing no-load losses.
[background technique]
Hydraulic machine is the machinery take fluid (liquid or gas) as working medium and energy carrier.Main kinetic energy (the v that relies on working liquid body
2/ 2g) variation is transmitted or the liquid cell of transformation energy is called hydrodynamic unit.Comprise the energy conversion devices take liquid as working medium such as fluid coupling, fluid torque converter, hydrodynamic retarder.This sentences hydrodynamic retarder is the example explanation, and active chamber is comprised of blade-carrying rotor and same blade-carrying stator.Braking action realizes that by injection and emptying working medium in active chamber the interaction force of rotor blade and medium is inertial force.This masterpiece is used on the blade of rotation, thereby has produced merit (plus or minus, the direction of eyesight and blade movement and decide), and this merit is the transformation of energy amount between medium and the machine.
Hydraudynamic drive is used for modern machine and starts from the beginning of last century, is used for the earliest shipping industry, as the driving mechanism between Ship Power Equipment and the propeller cavitation.The present hydraulic machine traffic and transport field that is widely used is because the working medium of hydraudynamic drive is liquid, so can absorb and reduce vibration and impact from motor and external load.The filtering performance of hydraudynamic drive that Here it is and overload protection function, thereby the working life that can improve vehicle.
What the design of hydraulic machine was mainly pursued is after making its filled liquid, and its working efficiency, performance are the highest.But be similar to the such hydraulic machine of hydrodynamic retarder, only when work, just in active chamber, fill liquid, but its driving wheel rotate along with travelling of vehicle always; This structure has just produced a new problem, when hydrodynamic retarder or Coupler are not worked, has become air by liquid in the active chamber, has become the agitation air loss by stirring the fluid power consumption, and this loss is called no-load losses (also crying windage loss).No-load losses is still very large with respect to other mechanical loss proportion, moreover the hydrodynamic retarder overwhelming majority time is idle, if this problem does not solve, for a vehicle, hydrodynamic retarder plays the effect that increases loss, lowers efficiency in the overwhelming majority time, and the fund of using a hydrodynamic retarder to spend in this respect also is many.At present, three of automotive field large themes are safety, energy-saving and environmental protection.Although use hydrodynamic retarder to improve Security, can not consider power saving, study also for the architecture advances aspect of no-load losses thus and be necessary.
Existing method for solving the hydraulic machine no-load losses is a lot, and the first is installed the mode of air register in active chamber, and when the rotor agitation air, air register has destroyed the runner of air, has reduced the flow of air, has reduced no-load losses.Air register can be laterally or vertically is arranged between the active wheel, and the control actuator that how need aim at its setting controls the motion of air register.Be exactly to take engaging and disengaging gear or separating mechanism when hydraulic machine is not worked, the driving wheel of hydraulic machine will be stopped operating in addition, so can agitation air, this structure is multiplex when power output in parallel.
Above-mentioned dual mode all needs independent mechanism and carries out the purpose that pilot line realizes reducing no-load losses, the major defect of hydraulic machine be each parts seal request high, cooperate that precision prescribed is high, manufacturing technology level is had relatively high expectations, safeguard and need the high technology level.If the design too much mechanism of complexity reduces the complexity that no-load losses will increase hydraulic machine undoubtedly, be not easy to the internal placement of hydraulic machine, also will inevitably come slot milling as cost take sacrifice hydraulic machine performance these independent agencies are installed.The machining accuracy of having to improve each component for the reliability that increases hydraulic machine can run well to guarantee complicated hydraulic machine, so that the processing request of component is high, cost increases, this is unfavorable for that hydraulic machine is in such the needing cheapness, be easy to process, keep in repair easy mechanically using in enormous quantities of vehicle.
[model utility content]
The purpose of this utility model provides a kind of plunger type disturbing flow device for reducing no-load losses, to reduce the no-load losses of hydraulic machine.
To achieve these goals, the utility model adopts following technological scheme:
A kind of plunger type disturbing flow device for reducing no-load losses comprises housing and the flow-disturbing assembly that is installed on the housing; The flow-disturbing assembly comprises flow-disturbing dish, spring seat and guide rod; Flow-disturbing dish and spring seat are fixed on the guide rod; Described housing comprises top and bottom, and the upper end of housing is fixed with flow-disturbing dish seat, and the lower end of housing is fixed with conduit; Described flow-disturbing dish seat is positioned between flow-disturbing dish and the spring seat, and described spring seat is contained in the housing; Compress Spring one end is supported on the spring seat, and the other end is supported in shell ends and is sheathed on conduit and stretches into the interior outer cylinder periphery of housing.
The utility model further improves and is: the flow-disturbing dish is in the form of annular discs, and this flow-disturbing dish has a conical surface towards the one side of flow-disturbing dish seat; Flow-disturbing dish seat has an inner fovea part towards the one side of flow-disturbing dish, and this inner fovea part has the upper conical surface that can match with the conical surface of flow-disturbing dish.
The utility model further improves and is: flow-disturbing dish seat and conduit are provided with the pilot hole that slides for guide rod.
The utility model further improves and is: housing top is provided with outside thread, the flange step surface of outside thread bottom limited location; Lower housing portion is provided with outer-hexagonal.
The utility model further improves and is: flow-disturbing dish and spring seat are fixed on the guide rod by soldering or riveted joint.
The utility model further improves and is: conduit and flow-disturbing dish seat are fixed on the housing by soldering or electron beam welding.
The utility model further improves and is: the plunger type disturbing flow device that should be used for the minimizing no-load losses is installed on hydraulic machine, and this hydraulic machine comprises stator, and stator is provided with some blades; The plunger type disturbing flow device that should be used for reduce no-load losses from the stator back, two adjacent interlobate tapped holes are screwed into and are installed on hydraulic machine.
The utility model further improves and is: the pre compressed magnitude of Compress Spring and the product of the Young's modulus both pre-compression force of Compress Spring act on impact force on the flow-disturbing dish prevent surface greater than gas under the hydraulic machine maximum idling speed.
The utility model further improves and is: the maximum force when Compress Spring is compressed to range is less than the liquid flow impact power of liquid in the hydraulic machine when working.
The utility model further improves and is: described hydraulic machine is fluid coupling, fluid torque converter or hydrodynamic retarder.
With respect to prior art, the utlity model has following advantage: a kind of plunger type disturbing flow device for reducing no-load losses of the utility model, can after slightly doing to change, the hydraulic machine follower can add thereon, make the flow-disturbing dish be in diverse location to change hydraulic machine inner fluid recurrent state, to reduce the hydraulic machine no-load losses according to force balance principle; The utility model apparatus structure is simple, and be easy to processing, assembling, install, low price, easy to maintenance, can conveniently use at large batch of hydraulic machine.
[description of drawings]
Fig. 1 is the structural representation of the utility model plunger type disturbing flow device; It represents that with the synoptic diagram of simplifying the hydraulic machine that consists of according to the utility model reduces the integral body of the plunger type disturbing flow device of no-load losses, and this hydraulic machine especially is the form of hydrodynamic retarder;
Fig. 2 is the housing schematic representation of the utility model plunger type disturbing flow device;
Fig. 3 is the reduced graph of the active force of illustration on guidance set.
[embodiment]
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
The utility model is for the problem that prior art exists, designed a simple, independent, can after the hydraulic machine follower is slightly changed, can add thereon make the flow-disturbing dish be in diverse location with the plunger type disturbing flow device that is used for reducing no-load losses of the minimizing no-load losses that changes hydraulic machine inner fluid recurrent state according to force balance principle.
Hydraulic machine---the utility model illustrates as an example of hydrodynamic retarder example: hydrodynamic retarder generally comprises at least one rotor of doing driving wheel and position and is fixed on stator on the housing, and the active chamber of hydraulic machine is comprised of them exactly.At least comprise the container of a storage working medium, in order to working medium and the space of setting up working medium pressure are provided when hydraulic machine is worked.At least working medium comprises a pipeline that connects active chamber and working medium container, so that can flow smoothly between working medium container and active chamber.Be provided with the directional control valve that makes the working medium directional flow in this pipeline and in order to change the throttling arrangement of hydrodynamic retarder internal characteristic.In this hydraulic pipe line, be provided with the radiator that the braking heat that utilizes different cooling mediums that working medium is brought is taken away.
The utility model is paid close attention to is how hydraulic machine reduces because how the mobile no-load losses that causes of air produces so no-load losses is discussed first idle the time.
The hydraulic losses of hydraulic machine refers in the active wheel operation process because mutual impact, fricative energy loss between impact, friction or the fluid of fluid and active wheel wall or blade.Comprise the blade shape loss; The frictional loss of liquid stream; The diffusion of liquid stream and shrinkage loss; Liquid flows back to and turns this four aspect of loss.It is formed with a necessary condition is exactly that fluid forms complete circulating in active chamber inside, like this could be so that the kinetic transformation of fluid is heat energy loss.
So it is exactly with its inner loop runner blocking-up, so that gas can not form complete circular flow when hydraulic machine is idle that the utility model reduces the method for no-load losses; Circulatory flow can recover again the appearance of original design in the time of the hydraulic machine normal operation, so that the normal operation of fluid power function.
As shown in Figure 1, the state when being in hydrodynamic retarder idle running for the utility model for the plunger type disturbing flow device that reduces no-load losses, it comprises housing 7 and the flow-disturbing assembly that is installed on the housing 7.
Housing 7 can external thread form be installed on the hydrodynamic retarder stator, and it can be from the stator back, two adjacent interlobate tapped holes are screwed into.
The flow-disturbing assembly comprises flow-disturbing dish 1, spring seat 3 and guide rod 4.Consider structure and add cost flow-disturbing dish 1 preferred fabrication to become disc-shape; Spring seat 3 is Compress Spring 5 and make spring-force driven dual to this flow-disturbing assembly fixedly; 4 of guide rods connect and leading role; Relatively waste material if consider the whole processing of this assembly, and guide rod 4 surface requirements are smooth, cylindricity requires also higher, if machining or common Type of Welding all can produce very large distortion, so flow-disturbing dish 1 and spring seat 3 form by soldering or riveted joint can be fixed on the guide rod 4, also can use additive method to fix, but should be not affect guide rod 4 cylindricities as prerequisite, if guide rod 4 bending after welding is heated can't be moved smoothly then be should give rectification.The length of guide rod 4 is decided according to stator and blade cavity space, and its basic demand is satisfied when retarder dallies guide rod external part and can be arrived the stator of the hydrodynamic retarder plane relative with rotor and can not interfere the normal operation of rotor.What act on mutually with fluid impact power is the spring force that Compress Spring 5 provides, its lower end is supported on the round platform in the housing 7, this end is fixed end, and the other end is supported on the spring seat 3 that is fixed in guide rod 4, can exert pressure for along with the longitudinal movement of guide rod 4 Compress Spring 5; Fluid impact power can be compressed Compress Spring 5, so that the position of flow-disturbing dish 1 changes, so just can play the effect that changes Fluid Circulation.Flow-disturbing dish seat 2 and conduit 6 play the effect in upper/lower terminal support guide bar 4 motions of housing 7.Flow-disturbing dish seat 2 welds together by form and the housing 7 of electron beam welding, the upper conical surface of its inner fovea part and the cone match of flow-disturbing dish 1, in the time of hydraulic shock, flow-disturbing dish 1 can be pressed into this inner fovea part, and then so that the outer end projection of disturbing flow device (flow-disturbing dish 1) is basic equal with the stator runner inner wall, reduce owing to installing hydrodynamic retarder performance change that disturbing flow device causes and the change of hydraulic losses additional.The conduit 6 of housing 7 lower ends also is to be connected with the form of soldering and housing 7, and wherein intracardiac unthreaded hole is required for guide rod 4 guiding, and outer cylinder can be Compress Spring 5 and provides support, leads.
Most critical in the utility model be Young's modulus m, the pre compressed magnitude x that how to design Compress Spring 5
0With spring range x
MaxNow be installed on the hydrodynamic retarder as the example explanation take the utility model: when hydrodynamic retarder is idle in the active chamber as air, at this moment require flow-disturbing dish 1 to be in outermost end and form circulatory flow with block fluid, this just requires the pre compressed magnitude x of Compress Spring 5
0Act on impact force on flow-disturbing dish 1 prevent surface with the pre-compression force of the product of Young's modulus m both spring greater than gas under the maximum idling speed of hydrodynamic retarder.When hydrodynamic retarder is worked, fill fluid in the active chamber, the fluid impact power that at this moment acts on the flow-disturbing dish 1 is exactly the impact force of fluid, because large many of the density ratio air of liquid, so equal volume is different with the fluid impact power of uniform flow.In order to make disturbing flow device of the present utility model not disturb the normal operation of hydrodynamic retarder, at this moment flow-disturbing dish 1 should be positioned at flow-disturbing dish seat 2, that is to say that Compress Spring 5 is compressed to range x
MaxThe time maximum force be less than the liquid flow impact power of liquid in when normal operation.Owing to the impact force of fluid is that rotating speed along with rotor raises and increases, so here need to be with spring-compressed to maximum problem when the how high rotating speed of hydraulic machine with regard to relating to, the utility model finds that according to the conclusion of actual measurement active wheel rotating speed braking action when being lower than 500 rev/mins of hydrodynamic retarder is less, and liquid can't form complete liquid stream in active chamber; Braking force begins obvious increase when the active wheel rotating speed is higher than 800 rev/mins, so the spring force when getting the active chamber cylindrical place liquid flow impact masterpiece of hydrodynamic retarder rotor in the time of 800 rev/mins and being the Compress Spring maximum displacement.Simultaneously according to shape between the stator vane of hydrodynamic retarder and the shape of spatial placement flow-disturbing dish and the length of guide rod, for consideration the utility model of cost and simplification flow-disturbing dish 1 is designed to disc with the conical surface, the cone match of the conical surface of prevent surface and flow-disturbing dish seat 2 is with the extreme lower position of restriction flow-disturbing dish 1 dorsad, and equal with circulation wall in the stator can guarantee to be compressed to limit position the time, to reduce the liquid rheology that causes owing to installing this device additional.
Fig. 2 illustrates the dimension sketch of the housing 7 of disturbing flow device.The utility model attempts to reduce the no-load losses of hydrodynamic retarder in the situation of not carrying out great change, Adopts measure adds the flow-disturbing device exactly between hydrodynamic retarder stator outer, two blades, structural type is the simplest form after consideration cost, processing and the assembling as shown in Figure 2, the outside thread 71 of housing 7 tops for matching with stator, height of thread is decided by stator wall thickness and layout.Position-limiting action flange step surface 72 has been arranged at the screw thread bottom on the housing 7.Housing 7 bottoms are in order to assemble the form of specially making outer-hexagonal 73 with convenient disassembly, so that the spanner of Application standard and sleeve.
Fig. 3 is depicted as the stressed schematic representation of flow-disturbing assembly, and the fluid impact masterpiece is used in the outside prevent surface of flow-disturbing dish 1, and the spring-force driven dual of Compress Spring 5 is on spring seat 3, and the position of flow-disturbing dish 1 is certain when equilibrium of forces.The utility model only provides elastic force with the fixing Compress Spring 5 of a Young's modulus, also can act in order on the spring seat 3 with the spring that becomes Young's modulus or many different lengths according to the theory of above-mentioned explanation, even can play like this in the process of hydrodynamic retarder work that the flow-disturbing pin also rises must barrier effect, do like this be because hydrodynamic retarder driving wheel turn up during less than certain value hydraulic machine inside do not become complete circular flow along the active wheel inwall, the barrier effect of disturbing flow device both can play the effect that reduces circulate circle.Change the braking torque release conditions of hydrodynamic retarder with this, can be in the requirement of carrying out realizing in the less change situation multistage braking moment of hydrodynamic retarder.
Claims (10)
1. a plunger type disturbing flow device that be used for to reduce no-load losses is characterized in that, comprises housing (7) and is installed on flow-disturbing assembly on the housing (7); The flow-disturbing assembly comprises flow-disturbing dish (1), spring seat (3) and guide rod (4); Flow-disturbing dish (1) and spring seat (3) are fixed on the guide rod (4); Described housing (7) comprises top and bottom, and the upper end of housing (7) is fixed with flow-disturbing dish seat (2), and the lower end of housing (7) is fixed with conduit (6); Described flow-disturbing dish seat (2) is positioned between flow-disturbing dish (1) and the spring seat (3), and described spring seat (3) is contained in the housing (7); Compress Spring (5) one ends are supported on the spring seat (3), and the other end is supported in housing (7) and holds and be sheathed on conduit (6) and stretch into outer cylinder periphery in the housing.
2. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 1 is characterized in that flow-disturbing dish (1) is in the form of annular discs, and this flow-disturbing dish (1) has a conical surface towards the one side of flow-disturbing dish seat (2); Flow-disturbing dish seat (2) has an inner fovea part towards the one side of flow-disturbing dish (1), and this inner fovea part has the upper conical surface that can match with the conical surface of flow-disturbing dish (1).
3. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 1 is characterized in that flow-disturbing dish seat (2) and conduit (6) are provided with the pilot hole that slides for guide rod (4).
4. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 1 is characterized in that housing (7) top is provided with outside thread (71), the flange step surface (72) of outside thread (71) bottom limited location; Housing (7) bottom is provided with outer-hexagonal (73).
5. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 1 is characterized in that flow-disturbing dish (1) and spring seat (3) are fixed on the guide rod (4) by soldering or riveted joint.
6. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 1 is characterized in that conduit (6) and flow-disturbing dish seat (2) are fixed on the housing (7) by soldering or electron beam welding.
7. each described a kind of plunger type disturbing flow device for reducing no-load losses in 6 according to claim 1, it is characterized in that, the plunger type disturbing flow device that should be used for the minimizing no-load losses is installed on hydraulic machine, and this hydraulic machine comprises stator, and stator is provided with some blades; The plunger type disturbing flow device that should be used for reduce no-load losses from the stator back, two adjacent interlobate tapped holes are screwed into and are installed on hydraulic machine.
8. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 7, it is characterized in that the pre compressed magnitude of Compress Spring (5) and the product of the Young's modulus both pre-compression force of Compress Spring (5) act on impact force on flow-disturbing dish (1) prevent surface greater than gas under the maximum idling speed of hydraulic machine.
9. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 7 is characterized in that, the maximum force of Compress Spring (5) when being compressed to range is less than the liquid flow impact power of liquid in the hydraulic machine when working.
10. a kind of plunger type disturbing flow device for reducing no-load losses according to claim 7 is characterized in that described hydraulic machine is fluid coupling, fluid torque converter or hydrodynamic retarder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243514 CN202690823U (en) | 2012-05-28 | 2012-05-28 | Plunger type turbulent flow device for reducing idle loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243514 CN202690823U (en) | 2012-05-28 | 2012-05-28 | Plunger type turbulent flow device for reducing idle loss |
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| Publication Number | Publication Date |
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| CN202690823U true CN202690823U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243514 Withdrawn - After Issue CN202690823U (en) | 2012-05-28 | 2012-05-28 | Plunger type turbulent flow device for reducing idle loss |
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| Country | Link |
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| CN (1) | CN202690823U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748410A (en) * | 2012-05-28 | 2012-10-24 | 陕西法士特齿轮有限责任公司 | Plunger type turbulent flow device used for reducing idle loss |
| CN103335036A (en) * | 2013-06-24 | 2013-10-02 | 宁波华盛汽车部件有限公司 | Stator impeller for hydrodynamic retarder |
| CN104595173A (en) * | 2014-11-28 | 2015-05-06 | 西南石油大学 | Long stroke fracturing pump turbulator with dropping and connecting device |
| CN112815023A (en) * | 2021-02-07 | 2021-05-18 | 一汽解放汽车有限公司 | Hydraulic retarder and vehicle |
-
2012
- 2012-05-28 CN CN 201220243514 patent/CN202690823U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748410A (en) * | 2012-05-28 | 2012-10-24 | 陕西法士特齿轮有限责任公司 | Plunger type turbulent flow device used for reducing idle loss |
| CN102748410B (en) * | 2012-05-28 | 2014-12-10 | 陕西法士特齿轮有限责任公司 | Plunger type turbulent flow device used for reducing idle loss |
| CN103335036A (en) * | 2013-06-24 | 2013-10-02 | 宁波华盛汽车部件有限公司 | Stator impeller for hydrodynamic retarder |
| CN104595173A (en) * | 2014-11-28 | 2015-05-06 | 西南石油大学 | Long stroke fracturing pump turbulator with dropping and connecting device |
| CN112815023A (en) * | 2021-02-07 | 2021-05-18 | 一汽解放汽车有限公司 | Hydraulic retarder and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20141210 |
|
| RGAV | Abandon patent right to avoid regrant |