CN202946896U - Pressure valve used for hydro-mechanical idling lubrication - Google Patents
Pressure valve used for hydro-mechanical idling lubrication Download PDFInfo
- Publication number
- CN202946896U CN202946896U CN 201220560032 CN201220560032U CN202946896U CN 202946896 U CN202946896 U CN 202946896U CN 201220560032 CN201220560032 CN 201220560032 CN 201220560032 U CN201220560032 U CN 201220560032U CN 202946896 U CN202946896 U CN 202946896U
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic machine
- valve body
- end surface
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model provides a pressure valve used for hydro-mechanical idling lubrication. The pressure valve used for the hydro-mechanical idling lubrication comprises a valve body, a valve plate, a spring and a valve base. The valve base is arranged on the tail portion of the valve body. A first through hole which penetrates through the upper end surface and the lower end surface of the valve base is formed in the valve base. A valve body working chamber is formed between the valve base and the valve body. The spring is arranged on the valve base. The valve plate is arranged inside the valve body working chamber. A second through hole which is communicated with the valve body working chamber is formed in the head portion of the valve body. The spring is in a free state. The lower end surface, contacted with the upper end of the spring, of the valve plate is higher than the upper end surface of the valve base. The second through hole is not sealed by the upper end surface of the valve plate. The position of the valve plate can be decided through the relation between hydraulic pressure and spring force, and therefore the pressure valve used for the hydro-mechanical idling lubrication decides whether the working chamber is communicated with an oil pool or not. In this way, differential pressure generated by a flow field when a hydraulic machine rotates can be fully used for pressing lubricating oil from the oil pool into the working chamber, and therefore rotating members, such as bearings and oil seals are lubricated. A forced lubrication device does not need to be additionally installed, design and processing of complex lubrication components are reduced, and cost and maintenance difficulty are lowered.
Description
[technical field]
The utility model relates to the hydraulic machine technical field, particularly a kind of valve formula structure lubricated when dallying for hydrodynamic retarder.
[background technique]
Hydraulic machine is the machinery take fluid (liquid or gas) as working medium and energy carrier.The working procedure of hydraulic machine is to realize the transmission of energy or conversion mutually by the interaction between fluid, and it comprises 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 the active chamber of hydrodynamic retarder is comprised of blade-carrying rotor and same blade-carrying stator.Braking is to utilize control media (most of vehicle uses the gas through the air pressure pump supercharging) to act on working medium and be pressed into active chamber, thereby working medium is accelerated and retrains its flow direction to make working medium impact stator vane with reasonable angle by running up of rotor, by mutually impacting between the friction between working medium and working medium and blade, be the heat energy of working medium with the kinetic transformation of vehicle.Be provided with radiator in hydrodynamic retarder working hydraulic pressure loop, can be with dissipation of heat in air or heat eliminating medium.This has just realized the lasting braking action of hydrodynamic retarder, and the size of braking force is realized by the proportional control valve of controlling retarder control hydrodynamic pressure.
Because hydraudynamic drive generally uses machine oil as working medium, so fluid is filled with active chamber in the hydraulic machine working procedure, utilize like this working medium in active chamber as the lubricating oil of hydraulic machine, but hydrodynamic retarder when not bringing into play braking action in (when dallying) active chamber fluid will flow back to oil storage pool, the revolving part of hydraulic machine will be in the state of oil starvation idle running, and the retarder long-play very easily causes the phenomenon of bearing, the dry grinding of oil sealing oil starvation in this state.The existing hydraulic machine idle running lubrication problem that solves mainly adopts following two kinds of ways.
The first is set up independently lubricated circulating oil path, i.e. design is independent of the lubricating loop of working medium circulation.This method need to make the power plant of lubricating oil flow mostly, generally needs independent oil pump or uses other oil pumps and supply with the required energy of transmission; This method needs extra power plant and independently oil circuit and valve control device, these oil leabs to the retarder design, make and brought very high difficulty, the too complicated casting defect that easily produces of the cavity design of the retarder housing that makes.
It two is to utilize the hydraulic machine flow field characteristic, and the pressure reduction that when namely rationally utilizing hydraulic machine idle running, agitation air produces in active chamber is pressed into active chamber with lubricating oil appropriate in oil sump, satisfies the lubrication needs of rotary component.If the lubricated oil circuit of idle running still shares with the oil circuit of work cycle, the hydrovalve and the too high pipe resistance that run well in the pipeline that design for hydraulic machine will make the very difficult realization of this circulation.So generally all need lubricated required independent pipeline and the valve control device of the suitable idle running of independent design one in hydraulic machine.This just causes very large somewhat complex design task.But because this self-suction is very little, and the excessive fluid of heat exchanger damping of retarder can not form good lubricated circulation, so the device that a cover is controlled oil sump and active chamber break-make need to be set, the switching that corresponding control module is controlled this on-off system is set on the retarder control valve simultaneously.When retarder is worked, active chamber and oil sump are separated, active chamber directly is communicated with oil sump, reduce the liquid resistance the lubricated circulation of retarder can be carried out.Although this way has reduced the manufacture difficulty of retarder housing, need to make larger change on retarder control valve structure, increased the manufacture cost of control valve.
[model utility content]
The purpose of this utility model is to provide a kind of for the lubricated pressure valve of hydraulic machine idle running, is used for solving the idle running lubrication problem of hydraulic machine.
To achieve these goals, the utility model adopts following technological scheme:
A kind of for the lubricated pressure valve of hydraulic machine idle running, comprise valve body, valve block, spring and valve seat; Valve seat is fixedly installed in the afterbody of valve body, and valve seat is provided with the first through hole that connects its upper-end surface and lower end surface; Form the valve body active chamber between valve seat and valve body, spring fitting is on valve seat, and valve block is positioned at the valve body active chamber; Valve head is provided with second through hole in connecting valve body running chamber; When spring was positioned at free state, the valve block lower end surface of contact spring upper end was higher than the valve seat upper-end surface, and the valve block upper-end surface is shutoff the second through hole not.
The utility model further improves and is: described valve block surrounding is evenly equipped with some circular arc oil channels.
The utility model further improves and is: the first through hole is communicated with the second through hole by the valve body active chamber.
The utility model further improves and is: the head of valve body is provided with outside thread, the housing of hydraulic machine active chamber is provided with tapped through hole, the head threads of valve body is connected on the housing of hydraulic machine active chamber, and is communicated with the hydraulic machine active chamber by the second through hole; The first through hole is communicated with the oil sump epicoele of hydraulic machine; The oil outlet of oil sump is by the oiler of the first pipeline connection hydraulic machine active chamber.
The utility model further improves and is: the oil outlet of hydraulic machine active chamber is by the return opening of the second pipeline connection oil sump; The second pipeline is provided with heat exchanger; The epicoele of oil sump is communicated with the control media container by tracheae and proportional pressure control valve.
The utility model further improves and is: upper-end surface and the lower end surface of valve block are provided with rubber sealant.
The utility model further improves and is: valve seat and valve body interference fit, and the afterbody of valve seat is provided with interior hexagonal hole, and the afterbody of valve seat and valve body welds together.
The utility model further improves and is: valve block and valve body active chamber inwall Spielpassung.
The utility model further improves and is: described hydraulic machine is fluid coupling, fluid torque converter or hydrodynamic retarder.
The utility model further improves and is: valve block upper-end surface pressure is greater than lower end surface pressure and spring force sum, valve block shutoff the first through hole; When perhaps valve block upper-end surface pressure is less than lower end surface pressure, valve block shutoff the second through hole.
With respect to prior art, the utlity model has following advantage: the utility model is a kind of for the lubricated pressure valve of hydraulic machine idle running, is used for solving the idle running lubrication problem of hydraulic machine; In the situation that the hydraulic machine overall structure is not done too much change, this valve can determine by the relation of hydraulic coupling and spring force the valve block position, thereby determines whether active chamber is connected with oil sump; The pressure reduction that in the time of can taking full advantage of like this hydraulic machine rotation, the flow field produces is pressed into lubricant oil in active chamber from oil sump, the lubricating rotary parts, need not to install additional forced lubrication device, and then reduce design and the processing of complicated lubricating component, reduce costs and maintenance difficulty.
[description of drawings]
Fig. 1 is the utility model fundamental diagram;
Fig. 2 is the lubricated valve arrangement schematic diagram of idle running;
Fig. 3 a is the structural representation of the lubricated valve valve block of idle running; Fig. 3 b is the plan view of Fig. 3 a.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: active chamber is comprised of rotor 1 and stator 3.Working medium is provided when working for the ease of retarder, and provides the space of setting up working medium pressure, retarder to be provided with the oil sump 9 of a storage working medium, be connected by path 10 between the cavity of resorption of oil sump 9 and active chamber.Take away and be dispersed in air for the braking heat that working medium is absorbed, retarder also is provided with a heat exchanger 4, and heat exchanger 4 entrances communicate with active chamber by pipeline 2, and heat exchanger 4 outlets communicate with oil sump 9 by pipeline 5.Be designed with throttle valve and the directional control valve group of controlling fluid pressure and direction in above-mentioned pipeline, it act as and satisfies hydraulic machine and work requiredly, does not do at this and gives unnecessary details.The above is the composition form in most of hydrodynamic retarder work loop.
for working medium can be injected fast, discharge the loine pressure in active chamber and maintenance hydraulic machine working procedure, one control media container 13 need be provided, control media container 13 is connected by the entrance of pipeline with proportional pressure control valve 12, the outlet of proportional pressure control valve 12 communicates by the epicoele of tracheae 11 with oil sump 9, contain proportion electro-magnet in proportional pressure control valve 12, rely on electromagnetic force, the stable demand of controlling air pressure that provides is provided equilibrium relation between atmospheric pressure and spring force, this control air pressure is done in the working medium surface of oil sump 9, the initial required power of work and the back pressure in working procedure are provided.
The utility model is a kind of is the lubricated valve 7 of idle running for the lubricated pressure valve of hydraulic machine idle running, and the lubricated valve 7 of idle running is arranged on the oil sump epicoele, and lubricated valve 7 front ends of idle running communicate with active chamber by passage 6, and the rear end directly communicates with oil sump 9 epicoeles by passage 8.
See also shown in Figure 2ly, the lubricated valve 7 of idle running is made of following 4 parts: valve body 14, valve block 15, spring 16, valve seat 17.At idle running valve body 14 head covers, screw thread is arranged, the tapped through hole of corresponding size also is set on the housing 100 of retarder active chamber, be arranged on idle running valve body 14 on the housing 100 of retarder active chamber by this screw thread, idle running valve body 14 heads have a through hole, make its front end directly communicate with the retarder active chamber.One through hole is arranged equally at the valve seat bottom, makes its rear end be communicated with retarder oil sump 9 epicoeles.Spring 16 is loaded on valve seat 17 inside, when spring 16 is in free state, the surface of contact of spring 16 upper ends and valve block 15 is higher than valve seat 17 upper surfaces, valve block 15 surroundings are evenly equipped with four its shapes of circular arc oil channel 150(as shown in Figure 3), the gap by valve block 15 surroundings makes active chamber realize being communicated with oil sump 9 in when idle running to be conducive to like this hydraulic machine, guarantees to dally to lubricate the little requirement of needed pipe resistance.
When retarder dallies, due to the flow field characteristic of hydraulic machine, make the inside and outside pressure reduction that produces of active chamber, a small amount of working medium in oil sump 9 is pressed into active chamber, the size of active chamber inside and outside differential pressure is relevant with the rotating speed of working blade, and rotating speed more high workload chamber inside and outside differential pressure is larger.The stirring of active chamber Leaf drives each rotary component with working medium, so just plays the effect of lubricated each rotary component.Then working medium is by the through hole of idle running on valve body 14, and four circular arc restrictions of valve block 15 and the through hole on valve seat 17 return to oil sump, form lubricated circulation.More high workload chamber inside and outside differential pressure is larger due to the hydraulic machine racing speed, and the working medium that sucks active chamber inside is also just more, and this specific character has just in time satisfied the lubricated demand of hydraulic machine idle running.This idle running lubrication pressure valve can take full advantage of this characteristic, makes the flow of hydraulic machine lubricant medium satisfy lubricating requirement under different rotating speeds
When retarder was started working, retarder oil sump 9 epicoeles led to control media, the jack-up that simultaneously valve block 15 made progress, and valve block 15 is crushed on valve body 14 inner chamber upper surfaces, and active chamber will seal with oil sump 9 this moment, make working medium can enter smoothly active chamber.Working medium enters after active chamber due to stirring and the whipping of rotor and stator, and the pressure in active chamber will increase rapidly, the most far away higher than the pressure of oil sump epicoele control media.When the active chamber internal pressure during greater than oil sump epicoele control media pressure and spring force sum, valve block will move downward rapidly, spring 17 is compressed, valve block 15 tightly is pressed on the lower surface of valve seat 17, and active chamber will separate with oil sump the most at last, guarantee that retarder provides lasting braking moment to the external world.When retarder stops, utilizing spring 16 elastic force that valve block 15 is backed down, again the retarder active chamber is communicated with oil sump.The utility model is only realized this demand with simple mechanics principle and exquisite mechanical structure, saves cost and maintenance difficulty.
Valve block 15 can be free to slide in valve body 14 and not be stuck, and valve block 15 uses the less material (as aluminum alloy or pottery) of density, and the upper and lower end face can be inlayed rubber and is beneficial to sealing.Valve seat 17 is interference fit with valve body 14, first valve block 15 is packed into during assembling valve body 14 inside, then directly valve seat 17 and spring 16 are pressed into valve body 14, space that rear valve base and valve body the form active chamber for the idle running valve is press-fit into place, valve block 15 is in the active chamber of idle running valve, contacts with the spring upper surface.
As mentioned above, idle running valve body 14 is interference fit with valve seat 17, for the installation of the little assembly of convenient idle running valve, and design one interior hexagonal hole after valve seat.With carrying out spot welding around valve seat, valve seat 17 and valve body 14 are welded together after the little general assembly of idle running valve is completed, when assurance idle running valve is tightened, the phenomenon of relative sliding does not appear in valve seat and valve body.
Claims (10)
1. one kind is used for the lubricated pressure valve of hydraulic machine idle running, it is characterized in that, comprises valve body (14), valve block (15), spring (16) and valve seat (17); Valve seat (17) is fixedly installed in the afterbody of valve body (14), and valve seat (17) is provided with the first through hole that connects its upper-end surface and lower end surface; Form the valve body active chamber between valve seat (17) and valve body (14), spring (16) is installed on valve seat (17), and valve block (15) is positioned at the valve body active chamber; Valve body (14) head is provided with second through hole in connecting valve body running chamber; Spring (16) is when being positioned at free state, and valve block (15) lower end surface of contact spring (16) upper end is higher than valve seat (17) upper-end surface, and valve block (15) upper-end surface is shutoff the second through hole not.
2. according to claim 1 a kind ofly it is characterized in that for the lubricated pressure valve of hydraulic machine idle running, described valve block (15) surrounding is evenly equipped with some circular arc oil channels (150).
3. according to claim 1 a kind ofly it is characterized in that for the lubricated pressure valve of hydraulic machine idle running, the first through hole is communicated with the second through hole by the valve body active chamber.
4. according to claim 1 a kind of for the lubricated pressure valve of hydraulic machine idle running, it is characterized in that, the head of valve body (14) is provided with outside thread, the housing of hydraulic machine active chamber (100) is provided with tapped through hole, the head threads of valve body (14) is connected on the housing (100) of hydraulic machine active chamber, and is communicated with the hydraulic machine active chamber by the second through hole; The first through hole is communicated with oil sump (9) epicoele of hydraulic machine; The oil outlet of oil sump (9) is by the oiler of the first pipeline connection hydraulic machine active chamber.
5. according to claim 4 a kind ofly it is characterized in that for the lubricated pressure valve of hydraulic machine idle running, the oil outlet of hydraulic machine active chamber is by the return opening of the second pipeline connection oil sump (9); The second pipeline is provided with heat exchanger (4); The epicoele of oil sump (9) is communicated with control media container (13) by tracheae (11) and proportional pressure control valve (12).
6. according to claim 1 a kind ofly it is characterized in that for the lubricated pressure valve of hydraulic machine idle running, upper-end surface and the lower end surface of valve block (15) are provided with rubber sealant.
7. according to claim 1 a kind of for the lubricated pressure valve of hydraulic machine idle running, it is characterized in that, valve seat (17) and valve body (14) interference fit, the afterbody of valve seat (17) is provided with interior hexagonal hole, and valve seat (17) welds together with the afterbody of valve body (14).
8. according to claim 1 a kind of for the lubricated pressure valve of hydraulic machine idle running, it is characterized in that valve block (15) and valve body active chamber inwall Spielpassung.
9. according to claim 4 a kind ofly it is characterized in that for the lubricated pressure valve of hydraulic machine idle running, described hydraulic machine is fluid coupling, fluid torque converter or hydrodynamic retarder.
10. according to claim 1 to 9, any one is described a kind ofly is characterized in that for the lubricated pressure valve of hydraulic machine idle running, and valve block (15) upper-end surface pressure is greater than lower end surface pressure and spring force sum, valve block (15) shutoff the first through hole; Perhaps valve block (15) upper-end surface pressure is less than lower end surface pressure, valve block (15) shutoff the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220560032 CN202946896U (en) | 2012-10-29 | 2012-10-29 | Pressure valve used for hydro-mechanical idling lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220560032 CN202946896U (en) | 2012-10-29 | 2012-10-29 | Pressure valve used for hydro-mechanical idling lubrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946896U true CN202946896U (en) | 2013-05-22 |
Family
ID=48422598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220560032 Expired - Lifetime CN202946896U (en) | 2012-10-29 | 2012-10-29 | Pressure valve used for hydro-mechanical idling lubrication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946896U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937234A (en) * | 2012-10-29 | 2013-02-20 | 陕西法士特齿轮有限责任公司 | Pressure valve used for idle lubrication of hydrodynamic machine |
| CN103671637A (en) * | 2013-09-10 | 2014-03-26 | 深圳市特尔佳科技股份有限公司 | Oil circuit structure of hydrodynamic retarder and method for lowering no-load loss of hydrodynamic retarder |
| CN103671636A (en) * | 2013-09-10 | 2014-03-26 | 深圳市特尔佳科技股份有限公司 | Oil way structure of hydraulic retarder and method for reducing no-load loss of oil way structure |
-
2012
- 2012-10-29 CN CN 201220560032 patent/CN202946896U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937234A (en) * | 2012-10-29 | 2013-02-20 | 陕西法士特齿轮有限责任公司 | Pressure valve used for idle lubrication of hydrodynamic machine |
| CN103671637A (en) * | 2013-09-10 | 2014-03-26 | 深圳市特尔佳科技股份有限公司 | Oil circuit structure of hydrodynamic retarder and method for lowering no-load loss of hydrodynamic retarder |
| CN103671636A (en) * | 2013-09-10 | 2014-03-26 | 深圳市特尔佳科技股份有限公司 | Oil way structure of hydraulic retarder and method for reducing no-load loss of oil way structure |
| CN103671637B (en) * | 2013-09-10 | 2017-05-03 | 深圳市特尔佳科技股份有限公司 | Oil circuit structure of hydrodynamic retarder and method for lowering no-load loss of hydrodynamic retarder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202560432U (en) | Self-circulation lubricating system water turbine with bearing for cooling tower | |
| CN202946896U (en) | Pressure valve used for hydro-mechanical idling lubrication | |
| CN102937234A (en) | Pressure valve used for idle lubrication of hydrodynamic machine | |
| CN102974845A (en) | High-speed electric main shaft device | |
| CN202501178U (en) | Lubricating oil pump | |
| CN104613106A (en) | Oil liquid circulation system of hydrodynamic retarder | |
| CN102943831B (en) | Hydrodynamic retarder | |
| CN103671324B (en) | A kind of for the pressure controlled two-step evolution valve of Hydraulic Machinery | |
| CN203488665U (en) | Belt-conveyor soft starting speed-adjusting device capable of on-load power isolation | |
| CN104006137A (en) | Open type valve-control liquid filling type liquid coupler | |
| CN204647073U (en) | A kind of hydrodynamic retarder oil circulation system | |
| CN203044911U (en) | High-speed electric main shaft device | |
| CN202611779U (en) | Double-seal-ring and double-oil-cavity middle body structure for turbocharger | |
| CN202926927U (en) | Hydraulic buffer | |
| CN202852006U (en) | Butterfly valve | |
| CN104595387A (en) | Integrated hydraulic retarder | |
| CN209453508U (en) | A kind of mounting plate having cooling and lubricating function | |
| CN208845799U (en) | A kind of check valve for Retarder oil outlet | |
| CN203627370U (en) | Two-stage control valve for hydraulic transmission machine pressure control | |
| CN203404047U (en) | Pressurizing oil supply lubricating mechanism for controlling pressure of lubricating oil for compressor | |
| CN203099277U (en) | Oil pump with changeable discharge capacity | |
| CN209130159U (en) | A kind of the multi-cavity lubrication and cooling device of appropriate angle speed reducer | |
| CN202914369U (en) | Improved sealing structure of centrifugal pumps | |
| CN108775428A (en) | A kind of check valve and control method for Retarder oil outlet | |
| CN2542697Y (en) | Guide case lubricating mechanism of needling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |