CN1514143A - Helical buffer clutch - Google Patents
Helical buffer clutch Download PDFInfo
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- CN1514143A CN1514143A CNA031527167A CN03152716A CN1514143A CN 1514143 A CN1514143 A CN 1514143A CN A031527167 A CNA031527167 A CN A031527167A CN 03152716 A CN03152716 A CN 03152716A CN 1514143 A CN1514143 A CN 1514143A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 39
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The clutch which applies new helical torque force principle is fabricated with helical grooves in continuous closed wave form formed by connecting head and tail alternatively for a numbers of left and right screws as the grooves are connected coordinately by transmission connecting piece. The ratio of control force and transfer force is confirmed through design of helical bevel angle for helical curve as well as the control for transfer force moment size can be realized by controlling positive presure of self-provided axle imposed on the transmission connecting piece.
Description
Technical field (body matter)
Relate to a kind of new torque transmission mode and adopt the mechanical clutch of this torque transmission mode.This clutch size is little, and controllability is good, can transmit very big moment, at high speed discrepancy, when big torsion transmits, can realize reliably, reposefully engaging, separating, and can be with half jointing state (promptly buffering excessively) continuous running.This clutch can be stablized the quantitative torsion of control output during buffering clutch excessively, therefore, it can also be as constant torsion o controller.
Background technique (body matter)
At present, known have a friction disk clutch, fluid power become turn round, pattern clutches such as electromagnetism and magnetic.Friction plate clutch is because its advantage such as simple in structure, cheap, and is widely used.But friction plate clutch is with the limited time system of half jointing state continuous running, and carry-over moment is when big, and the size of clutch will be very big; Magnetic clutch does not have buffering clutch process; The fluid power change is turned round, magnetic particle coupling, is existing state-of-the-art technology clutch, solved the problem with the long-time continuous running of half jointing state of clutch basically, but efficient is low, costs an arm and a leg, and size is still very big.
Summary of the invention (body matter)
In order to solve an above-mentioned difficult problem, new torque transmission principle is adopted in core of the present invention: i.e. spiral torque transmission is meant that when spirochetal helical trajectory moves, there is the torque transmission relation between the two in object.As with helix planar development vertically, its power is analyzed reduced graph such as accompanying drawing one.The power analysis result draws: F=P*tag θ (F is that transmission torsion, P are the angle of helix for axle positive pressure, θ angle).Be torque transmission F with angle of helix θ, and object and heliconid between axle positive pressure P relevant, equal screw axis positive pressure P, with the product of the tangent value of angle of helix θ.And import, there is not the corresponding relation of rotating speed in output speed, output speed is relevant with the torsion and the load size of transmission.Adopt spiral torsion buffering transmission principle: according to F=P*tag θ.When each angle of helix one timing, Control Shaft positive acting power P changes from small to big gradually, just can control power screw torsion F and change from small to big gradually.Otherwise, as the same.Because single-screw rotating locus is closed helical line not continuously, promptly to cushion transmission be a finite process to single-screw; Therefore, this device adopts closed continuously waveform helix.Promptly on the input of torque transfer, output shaft, processing alternately connects institute from beginning to end by many left and right sides spirals and is formed many spiral chutes of closure continuously, claims closed wave shaped helix groove, the abbreviation Waved helical flute, and the intersection point of each helical curve equals helical curve lines number.Input, the public axes sleeve of output shaft lump together, and are connected by driving connecting rod therebetween.Realize the size of the transmission torsion of control input and output between centers, be by design at the closed wave shaped helix groove that inputs or outputs on the axle, i.e. the angle of helix of each helical curve is to determine the ratio of control force and the power of transmission; By designing a pair of and above closed wave shaped helix groove to form couple or symmetrical force couple role; Control the size of carry-over moment by the axle positive force that control is applied on the driving connecting rod.In this clutch, the input shaft pine is enclosed within the two ends of jack shaft, and the output shaft pine is enclosed within the middle part of jack shaft, and input shaft, jack shaft, output shaft are fixed (equal public axle center) by the thrust-bearing that is fixed on the frame.Jack shaft is a hollow shaft, is provided with one way stop peturn valve (only allowing high pressure oil to enter hyperbaric chamber), piston in the center cavity.Have radially flat mouthful straight line slotted eye at the jack shaft middle part.On the output shaft internal chamber wall, processing alternately connects the Waved helical flute that institute is formed continuous closure from beginning to end by four identical (amplitude, the angle of helix equate) left and right sides spirals, has four intersection points, with four spiral chutes on the output shaft planar development such as accompanying drawing two vertically.Flat mouthful of straight line slotted eye, piston on the Waved helical flute of output shaft, the jack shaft are whipped the connecting rod of wearing the axle center by one and are engaged, and the torsion by the connecting rod transmission is a force couple role therebetween.The axle positive pressure of control connection bar is by the inside of controlling Design at jack shaft, is attached thereto the pressure of the piston that connects, and promptly the pressure that provides certainly of two hyperbaric chambers between piston and two one-way valves is realized.The one-way valve that two outer ends of two hyperbaric chambers are provided with, control media enters hyperbaric chamber only thus, and hyperbaric chamber designs some pressure release metering-orifices and leads to outside the chamber, and medium must be discharged through this.Pressure discharges the control of metering-orifice, by the clutch cover control that is arranged on input shaft, the jack shaft, promptly controls the size of hyperbaric chamber internal pressure.On the basis of this core component, spending on the jack shaft is strong, can engage with the internal spline on the clutch cover, clutch cover combines by spline with power input shaft again, therefore, the jaw clutch of power input shaft and jack shaft can be realized by controlling clutch cover, the separation fully of clutch can be realized when both separate.Two lateral layout of output shaft have the endoporus spline, and clutch cover has also designed spline with two sides that output shaft leans on mutually, therefore, can realize the jaw clutch of input shaft, jack shaft and output shaft by controlling clutch cover, and are when it engages that clutch is locked fully.
Description of drawings (body matter)
Such as accompanying drawing two (helical buffer clutch axial section): device comprises: frame 1, thrust bearing 2, power shaft 3, jackshaft 4, output shaft 5, Clutch cover 6, connecting rod 7, piston 8, dial differ from 9, spring 10, one way stop peturn valve 11, power shaft spline 12, jackshaft spline 13, output shaft Side spline 14, clutch cover internal spline 15, clutch cover side spline 16, input gear 17, output gear 18, a plurality of pressure relief opening 19, centre Axle punching flat mouth line groove hole 20, output shaft Waved helical flute 21, high pressure chest 22. Power shaft 3, jackshaft 4, output shaft 5 are by being fixed on frame Thrust bearing 2 fixing (equal public axle center) on 1. On jackshaft 4, the punching flat mouth straight-line groove 20 of processing, on output shaft 5 internal chamber walls, Processing alternately connects the continuously closed Waved helical flute 21 that forms from beginning to end by four identical (amplitude, the angle of helix equate) left-and-right spirals. Output Axle 5 pines are enclosed within the middle part of jackshaft 4, and power shaft 3 pines are enclosed within the two ends of jackshaft 4, and all there is spline at the two ends that it is connected with jackshaft 4, Can by the endoporus spline 15 of clutch cover 6, power shaft 3 and jackshaft 4 be linked together. Namely between power shaft 3 and jackshaft 4, arrange Jaw clutch by control clutch cover 6, is realized the complete clutch between Clutch input shaft 3 and the jackshaft 4. Clutch cover 6 and power shaft 3 Between be provided with back-moving spring 10, can by its solenoidoperated cluthes normality from, close state. Two sides at output shaft 5 are provided with endoporus spline 14, from The side that trap 6 and output shaft 5 lean on mutually also is provided with the combination of 16, two splines of side spline, as jaw clutch. Namely in power shaft 3, centre The jaw clutch that arranges between axle 4 and the output shaft 5 by control clutch cover 6, is realized Clutch input shaft 3, jackshaft 4 and output shaft 5 Between complete clutch. Jackshaft 4 is a hollow shaft, is provided with piston 8 in the center cavity, one way stop peturn valve 11 (only allows hydraulic oil to enter high pressure The chamber). Center cavity is connected with oil pump for engine, when piston 8 row pressure, utilizes the axle forward pressure that piston 8 is provided from the hydraulic pressure that provides Power. Also can directly link to each other with atmosphere, utilize the axle positive pressure that piston 8 is provided from the atmospheric pressure that provides. One way stop peturn valve 11 and piston 8 Between be high pressure chest 22, be processed with a plurality of pressure relief openings 19 between high pressure chest 22 and jackshaft 4 splines. The middle part of jackshaft 4 has radially punching Flat mouth straight line slotted eye 20, connecting rod 7 pass this groove and are connected with piston 8, and the two ends of connecting rod 7 are stretched in the Waved helical flute 21 of output shaft 5, Jackshaft 4, output shaft 5 and piston 8 are linked together. Be the power of reducing friction, connecting rod 7 contacts with 5 of jackshaft 4 and output shafts, Should be designed to the contact of rolling. Can control clutch cover 6 displacements by the difference of dialling of clutch, realize the control to clutch. The reciprocal row of hydraulic piston 8 The width of cloth of flat mouth straight-line groove 20 axial lengths of journey, jackshaft 4, the waveform that is connected to form with Waved helical flute 21 each bar helical curve of output shaft 5 Value equates, is D. Hydraulic piston 8 length are about 2D, and the length of output shaft 5 is about 3D. The length of clutch cover 6 is L, power shaft 3 splines The length of groove is in right amount greater than L, and to cooperate the requirement of spring, the length of jackshaft 4 splines is about 1/2L. The pawl formula of clutch cover 6 and output shaft 5 The composition surface meets the maximum requirement that moment is transmitted.
Embodiment (body matter)
Joint job order table with automobile clutch is chatted: the process of the jointing state when one, clutch becomes normality by separated state, in this spiral buffering clutch, be meant that clutch cover 6 is under the effect of Returnning spring 10, with input shaft 3, jack shaft 4, output shaft 5 by separating fully, the process that is bonded together fully gradually, it comprises three processes: 1, the engaging process of input shaft 3 and jack shaft 4; 2, the buffer engaging process of input shaft 3, jack shaft 4 and output shaft 5; 3, the complete locked engaging process of input shaft 3, jack shaft 4, output shaft 5.
1, the engaging process of input shaft 3 and jack shaft 4: begin slow loose clutch pedal, moving by dialling difference band, clutch cover 6 is shifted to jack shaft 4 by input shaft 3 under the effect of Returnning spring 10, and input shaft 3, jack shaft 4, clutch cover 6 can mesh by three's spline.Because 5 of jack shaft 4 and output shafts are spiral torque transmission relation, and the pressure relief opening of this moment is all open, promptly axle positive pressure P is very little, because F=P*tag θ, the torque transmission that jack shaft 4 and output shaft are 5 is also very little, can be considered unloaded.Therefore, clutch cover 6 and jack shaft 4 be fit directly, certainly, also can be set to the synchronous fit that rubs, and can adopt the synchronizer principle in the existing speed changer.Turn round when input shaft 3 drives jack shaft 4 by clutch cover 6, the spiral torque transmission that jack shaft 4 and output shaft are 5 is very little, and output shaft 5 is because load is static.Be that input shaft 3, jack shaft 4 and 5 of output shafts always exist speed discrepancy.The connecting rod 7 that jack shaft 4 and output shaft are 5 slides along Waved helical flute 21, and slides in the flat mouthful straight-line groove 20 in the middle part of jack shaft 4.Because what jack shaft 4 was opened is flat mouthful of straight line slotted eye 20, connecting rod 7 drives piston 8 and does reciprocal translation.The relative jack shaft 4 of piston, piston 8 does not rotate.And with respect to fixed frame 1, piston 8 rotates.Hydraulic oil constantly is inhaled into, discharges under piston 8 reciprocal translation effect.If during hydraulic piston 8 acting in oppositions, be inhaled into high-pressure chamber rapidly.When hydraulic piston 8 positive actings, owing to the effect of hydraulic pressure one way stop peturn valve 11, hydraulic oil is released by pressure relief opening only again.Therefore, when piston 8 row pressures, can be to connecting rod from a positive pressure is provided.
2, the buffer engaging process of input shaft 3, jack shaft 4 and output shaft 5: continue slow loose clutch pedal, moving by dialling difference band, clutch cover 6 is under the effect of Returnning spring 10, and continuation is shifted to jack shaft 4 by input shaft 3, closed gradually all pressure relief openings.Buffer engaging process is: clutch cover 6 is the process of closed all pressure relief openings gradually.The clutch high pressure cavity pressure discharges and gradually becomes minimum value by maximum value in this process, axis positive force P gradually becomes maximum value by minimum value, according to F=P*tag θ, the torque transmission F that input shaft 3, jack shaft 4 and output shaft are 5 gradually becomes maximum value by minimum value, and input shaft 3, jack shaft 4 gradually become minimum value with the relative differential of 5 of output shafts by maximum value.In the buffer engaging process, clutch high pressure chamber pressure release direction, vertical mutually with the movement direction of clutch cover 6, therefore, the manipulation active force of clutch is very little.Because buffer engaging process, the torque transmission that input shaft 3, jack shaft 4 and output shaft are 5 is a spiral torque transmission relation, and the spiral torque transmission is to connecting rod 7, and jack shaft 4 contacted and output shaft 5 spiral surface of contact, and the having relatively high expectations of each thrust-bearing 2 with it.Particularly connecting rod 7, will bear three active forces simultaneously: 1, the axle positive pressure P of piston 8; 2, the transmission torsion F of jack shaft 4; 3, the reaction force of output shaft 5 is making a concerted effort of preceding two power P and F.By the power analysis as can be known, the suffered positive pressure of spiral surface of contact is very big.And connecting rod 7 is with respect to jack shaft 4, static gradually by sliding in buffer engaging process; With respect to frame 1, gradually become rotation by rotating with reciprocal translation.Also owing to after the buffer engaging process end,, also just have the certain energy loss though clutch cover 6 with all pressure relief opening closures, in fact, is difficult to accomplish not leak fully.Therefore, be necessary after buffer engaging process finishes, input shaft 3, jack shaft 4, output shaft 5 is locked fully.
3, the complete locked engaging process of input shaft 3, jack shaft 4, output shaft 5: slow fully at last loose clutch pedal, moving by dialling difference band, clutch cover 6 continues to shift to output shaft 5 by input shaft 3, jack shaft 4 under the effect of Returnning spring 10.Jack shaft 4, output shaft 5 and clutch cover 6 also can be by three's spline engagements, as claw clutch.After buffer engaging process finishes, owing to input shaft 3, jack shaft 4 are minimum value with the relative differential maximum value of 5 of output shafts gradually.And there is certain tiny leakage in clutch high pressure chamber hydraulic pressure, and the differential minimum value is non-vanishing relatively.Therefore, clutch cover 6 can be linked in jack shaft 4, output shaft 5 together smoothly, thereby, finish the complete locked engaging process of clutch.The torsion transmission of clutch is also by the transmission of spiral torsion transmission becoming tooth engagement torsion.
Two, the separation of clutch is the inverse process of clutch, and is same, also comprises three processes: 1, output shaft 5 and input shaft 3, jack shaft 4 locked separation processes; 2, the buffering separation process of input shaft 3, jack shaft 4 and output shaft 5; 3, the complete separation process of input shaft 3 and jack shaft 4, output shaft 5.Here no longer elaborated.
Beneficial effect is: hydraulic screw buffering clutch, and simple in structure, compact size, long service life, clutch is reliable, controls flexibly, and it is little to handle active force, more helps electric control operation.Have very big transmission of torque, the buffering disengaging performance is good, and the clutch of clutch is excessively soft, and the sustainable running of half jointing state.Reliable when clutch also has high input speed, high speed discrepancy, smooth engagement, and at a high speed, premium properties reliable when big torsion transmits, that steadily separate.Be particularly suitable for high speed discrepancy joint, big torsion separation, the clutch of the sustainable running of half-clutch state is as the gear clutch of automatic transmission, when self shifter, can not subtract throttle and carry out, promptly engine power can not subtract, even can increase engine power.This clutch is during buffering clutch excessively, according to F=P*tag θ.Can stablize the quantitative torsion of control output, be fit to quantitative clutch or the Torque Controller of control outputting torsion, as the lathe clutch.In addition, clutch has certain design modification to select, and can select single-ended or both-end as input mode; Piston pressure can be selected single-ended or both-end; And select to have or not the engaging of input shaft and jack shaft, separation process, the i.e. claw clutch that whether between input shaft and jack shaft, is provided with (when choosing did not have this claw clutch, input shaft and jack shaft were same, chat as claim 2).And have or not input shaft, jack shaft, the complete locked joint of output shaft, separation process, i.e. the claw clutch that whether between input shaft, jack shaft and output shaft, is provided with.Even select simple designs mode, but clutch proper functioning still.Though performance of clutch decreases, structure is simpler, and size is also smaller and more exquisite.For example: the clutch that only adopts spiral torsion buffering transmission principle to constitute, promptly it has only buffering joint, separation process, does not engage fully, separates though have, and it is still clear, reliable to engage, separate, and the buffering disengaging performance is good.Particularly just engage, when separating, speed discrepancy, torsion are transmitted almost no requirement (NR) of size.
Adduction relationship in the subordinate claim indicates the further structure that independent power is required technological scheme by the feature in the corresponding subordinate claim.They should not be understood that to abandon to obtain the protection for the dependent claims feature technology scheme of being quoted.
The present invention is not limited to the embodiment in the specification.On the contrary, have a large amount of distortion and further structure within the scope of the invention, especially various deformation programs, element and combination and or dielectric material.For example in conjunction with in the specification and in the form of implementation, reached in the claim and narrated, reached the feature that comprises in the accompanying drawing, combination that element or method step carry out or distortion, constitute a new technological scheme or new method step or method step order, also comprise manufacturing, detection and method of work.
Accompanying drawing one is that the power of spiral torque transmission is analyzed reduced graph, and accompanying drawing two is Waved helical flute plane outspread drawings that four spirals form, and accompanying drawing three is The helical buffer clutch axial section.
Claims (3)
1. new spiral torque transmission mode.Its transmission torsion F equals screw axis positive pressure P, with the product of the tangent value of angle of helix θ.Be F=P*tag θ (the θ angle is the angle of helix).Its major character is: input, the public axes sleeve of output shaft lump together, and are connected by helix groove and connecting rod therebetween, and rotate in the public axle center of input, output shaft and connecting rod.By the angle of helix of design helix groove, to determine the ratio of the control force and the power of transmission; Control the size of carry-over moment by the axle positive force that control is applied on the driving connecting rod; Helix groove can be designed to the single-screw wire casing, and its spiral torsion transmission can not be carried out infinitely continuously.The closed wave shaped helix groove that many spirals constitute about also can be, its spiral torsion transmission can be carried out infinitely continuously.
2. a kind of mechanical damping transition clutch that adopts spiral torque transmission mode according to claim 1.Its major character is: input, the public axes sleeve of output shaft lump together, and input shaft, output shaft are fixed (equal public axle center) by the thrust-bearing that is fixed on the frame.Input shaft is a hollow shaft, is provided with one way stop peturn valve (only allowing high pressure oil to enter hyperbaric chamber), piston in the center cavity.On input shaft, have radially flat mouthful straight line slotted eye, or processing alternately connects the closed continuously closed wave shaped spiral chute that forms, total n intersection point from beginning to end by n left and right sides spiral.On the output shaft internal chamber wall, processing alternately connects the closed continuously closed wave shaped spiral chute that forms, total n intersection point from beginning to end by n left and right sides spiral.The closed wave shaped spiral chute of output shaft is worn the axle center connecting rod with the wire casing on the input shaft by one and is engaged.The clutch cover pine is enclosed within on the input shaft, can do axial translation on input shaft.The axle positive pressure of control connection bar is by the inside of controlling Design at input shaft, is attached thereto the pressure of the piston that connects, and promptly the pressure that provides certainly of two hyperbaric chambers between piston and two one-way valves is realized.Two hyperbaric chambers design some pressure relief openings and lead to outside the chamber.By controlling the displacement of clutch cover on pressure relief opening, pressure relief opening what change, with the size of control hyperbaric chamber internal pressure, realize the size of the transmission torsion of solenoidoperated cluthes.
3. according to claim 1,2 described a kind of mechanical damping transition of adopting spiral torque transmission mode, and the mechanical clutch of clutch fully.Its major character is: input, jack shaft, the public axes sleeve of output shaft lump together, and input shaft, jack shaft, output shaft are fixed (equal public axle center) by the thrust-bearing that is fixed on the frame.The input shaft pine is enclosed within the two ends of jack shaft, the output shaft pine is enclosed within the middle part of jack shaft, clutch cover can with input shaft, jack shaft and output shaft, mesh together by inside and outside spline, can control the clutch cover displacement by the difference of dialling of clutch, realize control clutch.Jack shaft is a hollow shaft, is provided with piston, one way stop peturn valve (only allowing high pressure oil to enter hyperbaric chamber) in the center cavity.Have radially flat mouthful straight line slotted eye at the jack shaft middle part.On the output shaft internal chamber wall, processing alternately connects the closed continuously closed wave shaped spiral chute that forms from beginning to end by four identical (amplitude, the angle of helix equate) left and right sides spirals, has four intersection points.Many spiral chutes of output shaft are worn the axle center connecting rod with the wire casing on the jack shaft by one and are engaged.The axle positive pressure of control connection bar is by the inside of controlling Design at jack shaft, is attached thereto the pressure of the piston that connects, and promptly the pressure that provides certainly of two hyperbaric chambers between piston and two one-way valves is realized.Two hyperbaric chambers design some pressure relief openings and lead to outside the chamber.By controlling the displacement of clutch cover on pressure relief opening, pressure relief opening what change, with the size of control hyperbaric chamber internal pressure, realize the size of the transmission torsion of solenoidoperated cluthes.The claw clutch that is provided with between input shaft and jack shaft to realize the jaw clutch of input shaft and jack shaft, can be realized the separation fully of clutch by the control clutch cover when both separate.The claw clutch that between input shaft, jack shaft and output shaft, is provided with,, when it engages that clutch is locked fully by the control clutch cover to realize the jaw clutch of input shaft, jack shaft and output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031527167A CN1514143A (en) | 2003-08-10 | 2003-08-10 | Helical buffer clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031527167A CN1514143A (en) | 2003-08-10 | 2003-08-10 | Helical buffer clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1514143A true CN1514143A (en) | 2004-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031527167A Pending CN1514143A (en) | 2003-08-10 | 2003-08-10 | Helical buffer clutch |
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| CN (1) | CN1514143A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105121887A (en) * | 2013-04-15 | 2015-12-02 | 株式会社丰田中央研究所 | Clutch mechanism and transmission |
| CN109502372A (en) * | 2018-12-28 | 2019-03-22 | 泰安康平纳机械有限公司 | A kind of storage vat equipment for being suitable for a large amount of Powder dye storages and weighing dispatching |
-
2003
- 2003-08-10 CN CNA031527167A patent/CN1514143A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105121887A (en) * | 2013-04-15 | 2015-12-02 | 株式会社丰田中央研究所 | Clutch mechanism and transmission |
| CN105121887B (en) * | 2013-04-15 | 2017-09-26 | 株式会社丰田中央研究所 | Clutch mechanism and speed changer |
| CN109502372A (en) * | 2018-12-28 | 2019-03-22 | 泰安康平纳机械有限公司 | A kind of storage vat equipment for being suitable for a large amount of Powder dye storages and weighing dispatching |
| CN109502372B (en) * | 2018-12-28 | 2024-02-27 | 泰安康平纳机械有限公司 | Storage vat equipment suitable for storing, weighing and distributing large amount of powder dyes |
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