CN1865712A - Combined dynamic load sensing torque amplifying and converting device - Google Patents
Combined dynamic load sensing torque amplifying and converting device Download PDFInfo
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- CN1865712A CN1865712A CN 200610039126 CN200610039126A CN1865712A CN 1865712 A CN1865712 A CN 1865712A CN 200610039126 CN200610039126 CN 200610039126 CN 200610039126 A CN200610039126 A CN 200610039126A CN 1865712 A CN1865712 A CN 1865712A
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Abstract
The invention discloses a combine dynamic load sensitive torque amplifying converter, belonging to the hydraulic transmission technique. Wherein, said device comprises a torque amplifier and a dynamic priority valve; the dynamic priority valve comprises a flow inlet, a flow supply port, a diversion port and a flow channel, while it contains two valve pins that connecting the flow inlet and the flow supply port according to need; or the flow inlet is connected to the flow supply port and the diversion port at the same time; the valve of amplifier has a pressure control valve, a one-way valve and a signal output. When assembling, the flow supply port of dynamic priority valve is through to the inlet of amplifier, while one end of two-way valve pin via flow channel is connected to the signal output of amplifier. The invention can supplies the liquid flow to appointed system, when these systems works together; when appointed system do not work, and it supplies liquid flow to other working system, to distribute the hydraulic energy reasonably; when the system pressure is higher than the pressure of valve, the liquid flow is directly fed to the flux port, without energy consumption, to save energy.
Description
Technical field
The present invention relates to a kind of dynamic load sensing torque amplifying and converting device, especially a kind of combined dynamic load sensing torque amplifying and converting device architecture advances belongs to hydraulic transmission technology field.
Background technique
Torque amplification device is a kind of hydraulic transmission that generally adopts on vehicle, its basic structure is fixedly connected valve body, every dish, stator, end cap constitutes the inner casing component that forms chamber, be shaped on the casing component and liquid entering hole and liquid return hole and the runner that is communicated with it, in this chamber spool is housed, couple axle, valve pocket, rotor, transmission shaft and output shaft, one end of valve body supports and extends to outside spool, the inner of spool is connected with couple axle one end, couple axle is in transmission connection with the valve pocket that is installed in rotatable switching runner in the valve body, the other end of couple axle passes every dish, inner spline gear engagement by external splines and rotor inner hole, the cylindrical of rotor is shaped on cycloid tooth, constitute the cycloid tooth wheel set with the pin tooth of circle in the stator, this cycloid tooth wheel set forms in stator can periodically expand contraction change engagement cavity volume, the inner spline gear of rotor also constitutes the spline tooth wheel set with the external spline teeth of transmission shaft one end simultaneously, and the external splines of the transmission shaft the other end constitutes the spline tooth wheel set with the output shaft endoporus that is supported in end cap and stretches out from end cap.
When the spool input torque rotates, to drive valve pocket by couple axle rotates, thereby the runner on the switching casing component, make the pressured fluid of liquid entering hole (P mouth) input enter the expansion cavity volume of cycloid tooth wheel set, liquid is discharged by liquid return hole (T mouth) in the contraction cavity volume of cycloid tooth wheel set simultaneously, thereby drive the rotor rotation, can convert hydraulic pressure to mechanical energy, and then will rotatablely move by transmission shaft and pass to output shaft output.In this process, because the cycloid tooth wheel set has the characteristic of accurate measurement, can can convert hydraulic pressure to rotating mechanical energy, realize in fact that therefore the moment of torsion with the spool input accurately amplifies the function (referring to Fig. 1) of output, can be applied in the occasions such as handling maneuver control of vehicle.
Yet the vehicle of fork truck, dumping car and so on is undertaken the handling maneuver control by torque amplifying and converting device except needs, need carry out such as the hydraulicdriven manipulation control of other needs such as lifting, jacking toward contact.At this moment, taking the hydraulic pressure dispensing device that the hydraulic pressure of same hydraulic power is assigned to usually turns to and other hydraulic work system.Because relatively and other control, handling maneuver control is even more important, and the liquid flowing ratio example of therefore often working required simultaneously with each work system is distributed, and the problem that the result brings is, under the state that each system does not work simultaneously, still there is certain energy consumption in the inoperative system.For example, when steering system was failure to actuate, liquid flows the torque amplifying and converting device of still flowing through to be handled, and forms idle loop (state shown in Figure 1), consumed energy.
Summary of the invention
The objective of the invention is to: at the problem of above prior art existence, by improvement to the liquid current control, propose a kind of combined dynamic load sensing torque amplifying and converting device, this device can preferentially be supplied with (for example turning to) system of appointment with liquid stream when each work system is worked simultaneously; When appointing system is failure to actuate, liquid stream all can be supplied with other work system, thereby realize the reasonable distribution of hydraulic pressure energy, avoid invalid energy consumption, save the energy.
In order to reach above purpose, combined dynamic load sensing torque amplifying and converting device of the present invention comprises: torque amplification (abbreviation amplifier), described amplifier are by fixedly connected valve body, constitute the inner casing component that forms chamber every dish, stator, end cap; Be shaped on the described casing component and liquid entering hole and liquid return hole and the runner that is communicated with it; One end of described valve body supports and extends to outside spool, and the inner of described spool is connected with an end of couple axle, and described couple axle is in transmission connection with the valve pocket that is installed in the valve body; The other end of described couple axle passes every dish, and with the endoporus formation spline tooth wheel set of rotor, the interior circle of the cylindrical of described rotor and stator constitutes the cycloid tooth wheel set, and the endoporus of described rotor also constitutes the spline tooth wheel set with transmission shaft one end; The other end of described transmission shaft constitutes the spline tooth wheel set with the output shaft that is supported in end cap and therefrom stretches out; Its improvements are: also comprise the dynamic priority valve, be shaped on inflow port on the valve body of described dynamic priority valve, supply head piece (CF mouth), split-flow opening (EF mouth) and runner; One end is housed in the described valve body is resisted against two-position valve core on the elastic component, the two ends of described two-position valve core are by being communicated with through the runner for head piece, when the two-position valve core is in primary importance, and inflow port and be communicated with for head piece; When the two-position valve core was in the second place, inflow port was communicated with simultaneously with for head piece and split-flow opening; The control signal mouth (LS mouth) that is communicated with liquid entering hole when being communicated with, having moment of torsion to import with liquid return hole when being shaped on the input of no moment of torsion on the valve body of described amplifier; During assembling, the head piece that supplies of described dynamic priority valve is communicated with the liquid entering hole of amplifier, and the elastic component end of two-position valve core is communicated with the control signal mouth of amplifier by runner.In addition, in order to realize superpressure control, between the control signal mouth of described amplifier valve body and the liquid return hole pressure controlled valve is set.
During use, the present embodiment combined dynamic load sensing torque amplifying and converting device is connect hydraulic power for head piece, split-flow opening connects other work system, in the time of can being implemented in each work system and working simultaneously, preferentially liquid stream is supplied with (for example turning to) system of appointment; When appointing system attonity demand, liquid stream all can be supplied with other work system, thereby realize the reasonable distribution of hydraulic pressure energy, avoid invalid energy consumption, save the energy.
When having power fluid (normally power oil), system do not do the time spent, the present invention can use and make steering boost system, and this moment can be by being provided with one-way valve, by the effect of this one-way valve between liquid entering hole and liquid return hole, from liquid return hole (T mouth) oil suction, thereby realize emergent turning to.In the case, input torque also acts on oil suction except that the effect for enlarged portion, the function of hand oil pump is arranged.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the hydraulic system principle figure of existing torque amplifying and converting device.
Fig. 2 is the structural representation of a preferred embodiment of the invention.
Fig. 3 is Fig. 2 embodiment's a hydraulic system principle figure.
Embodiment
Embodiment one
The combined dynamic load sensing torque amplifying and converting device of present embodiment organically combines formation by torque amplification (abbreviation amplifier) and dynamic priority valve two-part as shown in Figure 2.Torque amplification wherein constitutes the inner casing component that form chamber every dish 6, stator 5, second every dish 4, end cap 2 by fixedly connected valve body 12, first, stator 5 first every dish 6 and second every coiling between 4, so more help forming airtight cavity volume.Be shaped on the casing component and liquid entering hole and liquid return hole and the runner that is communicated with it, spool 4, couple axle 9, valve pocket 8, rotor 7, transmission shaft 3 and output shaft 1 are housed in this chamber.One end of valve body 12 supports and extends to outside spool 14, the inner of spool 14 is connected by the spring plate group transmission with an end of couple axle 9, couple axle 9 is in transmission connection by finger 11 with the valve pocket 8 that is installed in rotatable switching runner in the valve body 12, this finger interts in couple axle 9, and two ends are stretched in the valve pocket 8.The other end of couple axle 8 passes every dish 6, meshes by the external splines of its termination and the inner spline gear of rotor 7 endoporus, and the cylindrical of rotor 7 is shaped on cycloid tooth, with the pin teeth formation cycloid tooth wheel sets of circle in the stator 5.This cycloid tooth wheel set forms the engagement cavity volume that can periodically expand contraction change in stator.The inner spline gear of rotor 7 also constitutes the spline tooth wheel set with the external spline teeth of transmission shaft 3 one ends simultaneously, and the external splines of transmission shaft 3 the other ends constitutes the spline tooth wheel set with output shaft 1 endoporus that is supported in end cap 2 and therefrom stretches out.In addition, for fear of impact, liquid entering hole is through safety valve 13 logical inner flow passages.In order to organically combine with the dynamic priority valve, the control signal mouth that is communicated with liquid entering hole when being communicated with, having moment of torsion to import with liquid return hole when being shaped on no moment of torsion input on the valve body 12.
Be shaped on inflow port on the dynamic priority valve body 15, supply head piece, split-flow opening and throttle orifice and runner, one end wherein is housed is resisted against two-position valve core 14 on the spring 16, the two ends of this Two-position valve by on the dynamic priority valve body through for head piece throttle orifice and runner be communicated with, when two-position valve core 14 was in primary importance, inflow port and confession head piece were communicated with; When two-position valve core 14 was in the second place, inflow port was communicated with simultaneously with for head piece and split-flow opening.Spring 16 is arranged in the endoporus of spring seat 17, and spring seat 17 is connected by sealing thread with the valve body of dynamic priority valve.
During assembling, the dynamic priority valve body is fixedlyed connected with the amplifier valve body, make being communicated with the liquid entering hole of amplifier of dynamic priority valve for head piece, and the spring terminal of two-position valve core is communicated with (referring to Fig. 3) by the runner on the dynamic priority valve body with the control signal mouth of amplifier, and amplifier obtains Dynamic Signal thus.Since the control signal mouth of amplifier valve body and liquid return hole be provided with pressure controlled valve, when system loading pressure surpasses setting value, fluid will directly flow back to the T mouth.
During work, with the combined dynamic load sensing torque amplification device connect hydraulic power for head piece, split-flow opening connects other work system.When no moment of torsion input, when promptly not needing handling maneuver control, the liquid entering hole of amplifier is closed, block for stream, be in state shown in Figure 3, because the pressure of CF mouth is greater than the T mouth that is in the earial drainage state (being the liquid return hole of amplifier) among the figure, and the LS mouth is communicated with the T mouth, therefore the pressure on the left of two-position valve core this moment is greater than the right side, to overcome spring force, and make this spool right shift, the primary importance of being illustrated by figure becomes the second place, form the short circuit of inflow port and split-flow opening, liquid stream is supplied with other hydraulic work system fully; When amplifier has the moment of torsion input, when promptly needing handling maneuver control, the inflow port of dynamic priority valve is by entering the liquid entering hole of amplifier for head piece, drive the rotor of cycloid tooth wheel set, by shrinking cavity volume backflow is squeezed out liquid return hole, this moment, the pressure of T mouth raise, reduce with the pressure reduction of P mouth, the two-position valve core of dynamic priority valve resets under the effect of spring, thereby closes split-flow opening, guarantees the preferential torque amplification of supplying with of liquid stream.
This shows that present embodiment can be realized when appointing system is failure to actuate, and liquid stream is all supplied with other work system, when needs turn to, preferentially supplies with torque amplification, thereby reasonable distribution control hydraulic pressure energy has energy-conservation effect.
Do not do the time spent when system has power oil, present embodiment can be used as steering boost system, by between liquid entering hole and liquid return hole one-way valve being set, under the effect of this one-way valve, from liquid return hole (T mouth) oil suction, can realize emergent turning to.At this moment, input torque also acts on oil suction except that the effect to enlarged portion, the function of hand oil pump is arranged.
On the basis of above action principle, according to hydraulic transmission design general knowledge, runner when specifically implementing and valve inner member are not difficult to design, and many variation design proposals can be arranged.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (9)
1. a combined dynamic load sensing torque amplifying and converting device comprises torque amplification, and described torque amplification is by fixedly connected valve body, constitute the inner casing component that forms chamber every dish, stator, end cap; Be shaped on the described casing component and liquid entering hole and liquid return hole and the runner that is communicated with it; One end of described valve body supports and extends to outside spool, and the inner of described spool is connected with an end of couple axle, and described couple axle is in transmission connection with the valve pocket that is installed in the valve body; The other end of described couple axle passes every dish, and with the endoporus formation spline tooth wheel set of rotor, the interior circle of the cylindrical of described rotor and stator constitutes the cycloid tooth wheel set, and the endoporus of described rotor also constitutes the spline tooth wheel set with transmission shaft one end; The other end of described transmission shaft constitutes the spline tooth wheel set with the output shaft that is supported in end cap and therefrom stretches out; It is characterized in that: also comprise the dynamic priority valve, be shaped on inflow port on the valve body of described dynamic priority valve, supply head piece, split-flow opening and runner; One end is housed in the described valve body is resisted against two-position valve core on the elastic component, the two ends of described Two-position valve are by being communicated with through the runner for head piece, when the two-position valve core is in primary importance, inflow port and confession head piece are communicated with, when the two-position valve core was in the second place, inflow port was communicated with simultaneously with for head piece and split-flow opening; The control signal mouth that is communicated with liquid entering hole when being communicated with, having moment of torsion to import with liquid return hole when being shaped on the input of no moment of torsion on the valve body of described amplifier; During assembling, the head piece that supplies of described dynamic priority valve is communicated with the liquid entering hole of amplifier, and the elastic component end of two-position valve core is communicated with the control signal mouth of amplifier by runner.
2. according to the described combined dynamic load sensing torque amplifying and converting device of claim 1, it is characterized in that: between the control signal mouth of described amplifier valve body and the liquid return hole pressure controlled valve is set.
3. according to the described combined dynamic load sensing torque amplifying and converting device of claim 2, it is characterized in that: between described liquid entering hole and the liquid return hole one-way valve is set.
4. according to the described combined dynamic load sensing torque amplifying and converting device of claim 3, it is characterized in that: the liquid entering hole of described torque amplification is through the logical inner flow passage of safety valve.
5. according to the described combined dynamic load sensing torque amplifying and converting device of claim 4, it is characterized in that: the couple axle of described torque amplification is in transmission connection by finger with the valve pocket that is installed in the valve body, described finger interts in couple axle, and two ends are stretched in the valve pocket.
6. according to the described combined dynamic load sensing torque amplifying and converting device of claim 5, it is characterized in that: the spool of described torque amplification is inner to be connected by the spring plate group transmission with an end of couple axle.
7. according to the described combined dynamic load sensing torque amplification device of claim 6, it is characterized in that: the stator of described torque amplification first every the dish and second every the dish between.
8. according to the described combined dynamic load sensing torque amplifying and converting device of claim 7, it is characterized in that: the valve body of described torque amplification is fixedlyed connected with described dynamic priority valve body.
9. described according to Claim 8 combined dynamic load sensing torque amplifying and converting device is characterized in that: the spring of described dynamic priority valve is arranged in the endoporus of spring seat, and described spring seat is connected by sealing thread with the valve body of dynamic priority valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039126 CN1865712A (en) | 2006-03-28 | 2006-03-28 | Combined dynamic load sensing torque amplifying and converting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039126 CN1865712A (en) | 2006-03-28 | 2006-03-28 | Combined dynamic load sensing torque amplifying and converting device |
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| Publication Number | Publication Date |
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| CN1865712A true CN1865712A (en) | 2006-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610039126 Pending CN1865712A (en) | 2006-03-28 | 2006-03-28 | Combined dynamic load sensing torque amplifying and converting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155448A (en) * | 2011-03-23 | 2011-08-17 | 镇江液压件厂有限责任公司 | Torque amplifying device |
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2006
- 2006-03-28 CN CN 200610039126 patent/CN1865712A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155448A (en) * | 2011-03-23 | 2011-08-17 | 镇江液压件厂有限责任公司 | Torque amplifying device |
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