CN202125581U

CN202125581U - Hydraulic speed changer

Info

Publication number: CN202125581U
Application number: CN 201120133918
Authority: CN
Inventors: 王青松
Original assignee: Hangzhou Advance Gearbox Group Co Ltd
Current assignee: Hangzhou Advance Gearbox Group Co Ltd
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2012-01-25
Anticipated expiration: 2021-04-29

Abstract

A hydraulic speed changer mainly comprises a box component, a hydraulic torque converter, an input component, a K1/V clutch component, a K2/R clutch component, a K3/4 clutch component, an idle wheel component, an output component, a control valve component and a power takeoff component, wherein an input gear of the input component is respectively meshed with a KV transmission gear of the K1/V clutch component and a KR transmission gear of the K2/R clutch component, the KR transmission gear of the K2/R clutch component is meshed with an idle wheel of the idle wheel component, an intermediate gear on the K1/V clutch component is meshed with an intermediate gear of the K2/R clutch, the intermediate gear is meshed with an intermediate gear of the K3/4 clutch component; a K1 gear of the K1/V clutch component is meshed with a K2 gear of the K2/R clutch component, a K2 pinion coaxially and fixedly connected with the K2 gear is meshed with a K3 gear of the K3/4 clutch component, a K4 gear on the K3/4 clutch component is meshed with an idle gear, and the K3 gear is meshed with an output gear of the output component.

Description

Torque converter

Technical field

The utility model relates to a kind of gear transmission transmission/conversion equipment, a kind of have whole box many retainings power-shift transmission by a fluid torque converter and one, can realize the multifunctional gear driving device of preceding rear bridge driven.

Background technique

(power is in 60 ~ 100kW) engineering machinery for middle low power in the market; Be mainly used in urban construction and some infrastructures; Its torque converter structurally adopts the form of fluid torque converter+power-shift transmission basically, realizes the conversion of each gear through the clutch of hydraulic control.But domestic torque converter exists following problem basically now: 1) gear number is less and more single, can not adapt to the operation of engineering machinery under various complex working condition conditions; 2) monotony is more obvious, on different engineering machinery, often needs custom-designed speed changer supporting with it, has so both increased exploitation and manufacture cost, also is unfavorable for the generalization and the seriation of product simultaneously; 3) weight--to-power ratio is bigger, has the engineering machinery of specific (special) requirements will acquire a certain degree of difficulty on supporting at some; 4) degree of automation/semi-automation is lower, can not adapt to the modern requirement of engineering machinery, and the advance and the market competitiveness of complete machine produced restrictive function.

Summary of the invention

The purpose of the utility model is the deficiency to above-mentioned existence, and provide a kind of novel, rational in infrastructure, volume is little, scope in light weight, supporting is wide, reliability is high, can realize the torque converter of semiautomatic control and even Automatic Control.

The purpose of the utility model is accomplished through following technological scheme, and it mainly comprises: box part, fluid torque converter, input block, K1/V clutch component, K2/R clutch component, K3/4 clutch component, idle pulley parts, output block, control valve parts and power take-off parts; The input gear of described input block meshes with the KV driving gear of K1/V clutch component and the KR driving gear of K2/R clutch component respectively; The KR driving gear of K2/R clutch component then with the engagement of the idle gear of idle pulley parts; The engagement of the intermediate gear of intermediate gear on the K1/V clutch component and K2/R clutch component, this intermediate gear again with the intermediate gear engagement of K3/4 clutch component; The K1 gear of K1/V clutch component and the K2 gear engagement of K2/R clutch component; With the coaxial K2 small gear that is connected of K2 gear again with the K3 gear engagement of K3/4 clutch component; K4 gear on the K3/4 clutch component then meshes with said idle gear, the output gear engagement of said K3 gear and output block.

Dispose KV clutch, K1 clutch in the described K1/V clutch component; Dispose K2 clutch and KR clutch in the K2/R clutch component; And in said K3/4 clutch component, dispose K3 clutch and K4 clutch, and above-mentioned each clutch is the identical friction plate clutch of being controlled by the control valve parts of structure; Described input block includes input shaft, imports the oil pump that gear links to each other with the input shaft end; Described output block comprises output shaft, output gear and output flange.

Described friction plate clutch includes several pieces friction plates of being made up of powder metallurgy friction plate and copper sheet; And they are interlaced arranged; Wherein the powder metallurgy friction plate links to each other with internal spline in the clutch outer member through external splines, and copper sheet is connected with the external splines of respective gears through internal spline; Be provided with in the centre of clutch shaft be communicated with piston cavity, with the pressure oil duct of solenoidoperated cluthes, be provided with the returning spring that makes piston turn back to original position at an end of said piston.

The maximum characteristics of the utility model are to have adopted general in the world modularization, the unitized designing method of the formula that plays with building blocks; Specific requirement according to different user and different vehicle; Need only change some part combination of torque converter, just can satisfy the usage requirement of various engineering machinery or some special vehicle.This design method has not only strengthened the coupling adaptability of speed changer to various vehicles, also is beneficial to the versatility and the seriation of product simultaneously, has shortened the exploitation and the manufacturing cycle of new product greatly, has practiced thrift cost of production, and economic benefit has obtained fine embodiment.

Description of drawings

Fig. 1 is the structural principle schematic representation of the utility model.

Fig. 2 is the said clutch configuration schematic representation of the utility model.

Embodiment

Below just Fig. 1 the utility model is done detailed introduction.Shown in Figure 1, the utility model mainly comprises: box part 1, fluid torque converter 2, input block 3, K1/V clutch component 4, K2/R clutch component 5, K3/4 clutch component 6, idle pulley parts 7, output block 8, control valve parts and power take-off parts 10; The input gear 11 of described input block 3 meshes with the KV driving gear 12 of K1/V clutch component 4 and the KR driving gear 13 of K2/R clutch component 5 respectively; 13 idle gears 14 with idle pulley parts 7 of the KR driving gear of K2/R clutch component 5 mesh; Intermediate gear 15 on the K1/V clutch component 4 and 16 engagements of the intermediate gear of K2/R clutch component 5, this intermediate gear 16 again with intermediate gear 17 engagements of K3/4 clutch component 6; The K1 gear 18 of K1/V clutch component 4 and 19 engagements of the K2 gear of K2/R clutch component 5; With the K2 gear 19 coaxial K2 small gears 20 that are connected again with 21 engagements of the K3 gear of K3/4 clutch component 6; 22 of K4 gears on the K3/4

clutch component

6 and 14 engagements of said idle gear, said K3 gear 21 meshes with the output gear 23 of output block 8.

Dispose KV clutch, K1 clutch in the described K1/V clutch component 4; Dispose K2 clutch and KR clutch in the K2/R clutch component 5; And in said K3/4 clutch component 6, dispose K3 clutch and K4 clutch, and above-mentioned each clutch is the identical friction plate clutch of being controlled by the control valve parts of structure; Described input block 3 includes input shaft, imports the oil pump that gear links to each other with the input shaft end; Described output block 8 comprises output shaft, output gear and output flange.

Shown in Figure 2; Described friction plate clutch includes several pieces friction plates of being made up of powder metallurgy friction plate 24 and copper sheet 25; And they are interlaced arranged; Wherein powder metallurgy friction plate 24 links to each other with internal spline in the clutch outer member 26 through external splines, and copper sheet 25 is connected through the external splines of internal spline with respective gears 27; Be provided with in the centre of clutch shaft 28 be communicated with piston cavity 29, with the pressure oil duct 30 of solenoidoperated cluthes, be provided with the returning spring 32 that makes piston turn back to original position at an end of said piston 31.

" IN " expression input end among Fig. 1; From the power of motor output through fluid torque converter 2 transmission and gearbox; Torque-converters can be realized the stepless variation of output speed; Driving torque can adapt to required load torque automatically, thereby has strengthened the adaptability of machinery to various operating modes, has also increased the life-span of machinery (motor and speed changer) when reducing labor intensity.On fluid torque converter, can install mechanisms such as unidirectional freewheel of guide wheel and lockup clutch additional simultaneously, to satisfy the applying working condition requirement of different machineries.One of them characteristic of the utility model are that torque-converters has certain independence and various selectivity; Promptly need not change other structure of speed changer; Coupling result of calculation according to vehicle and speed changer; Select suitable torque converter assemblage parts, directly be installed on the front end of speed changer, this is an important embodiment of modular design.Fluid torque converter part can be separated with mechanical driving part and designed, and organically makes up again, forms multiple amelioration product, satisfies the needs of different vehicle.

Mainly form in the described mission case of the utility model by five or six clutches (gear number according to vehicle is confirmed required clutch quantity, and 4/5/6 retaining structure needs 6 clutches, and 3 retaining structures only need 5 clutches).By the Multi-plate Wet Friction Clutch of hydraulic control, can engage down and disengagement at on-load state (not cutting off power), be power gear shifting.Adopt parallel axes (dead axle) transmission on the utility model structure, all driving gears support by rolling bearing, are normal engagement driving between gear and the gear.Input block 3 mainly comprises input shaft, input gear and oil pump, and wherein the effect of oil pump is enough lubricant oil and working pressure oil to gearbox and torque-converters to be provided.The K1/V clutch component mainly comprises KV gear, KV clutch, K1 clutch and K1 gear etc.; The K2/R clutch component mainly comprises KR gear, KR clutch, K2 clutch and K2 gear (comprising K2 gearwheel and K2 small gear) etc.; The K3/4 clutch component mainly comprises K3 gear, K3 clutch, K4 clutch and K4 gear etc.; Output block mainly comprises output gear, output shaft and output flange etc.

Consider the transmission capacity and the stationarity (noise) of speed changer, most of driving gear of the utility model all adopts helical teeth, has therefore also adopted a large amount of tapered roller bearings to bear the axial force that the helical teeth transmission is produced.

The utility model is the mechanical drive principle that example is introduced each clutch relation and speed changer from 6 preceding 3 structures of falling.Oncoming clutch is KV and K1 when advancing 1 retaining, and Transmitted chains is IN → KV → K1 → K2 → K3 → OUT; Oncoming clutch is K4 and K1 when advancing 2 retainings, and Transmitted chains is IN → KV → K4 → K1 → K2 → K3 → OUT; Oncoming clutch is KV and K2 when advancing 3 retainings, and Transmitted chains is IN → KV → K2 → K3 → OUT; Oncoming clutch is K4 and K2 when advancing 4 retainings, and Transmitted chains is IN → KV → K4 → K2 → K3 → OUT; Oncoming clutch is KV and K3 when advancing 5 retainings, and Transmitted chains is IN → KV → K3 → OUT; Oncoming clutch is K4 and K3 when advancing 6 retainings, and Transmitted chains is IN → KV → K4 → K3 → OUT; Oncoming clutch is KR and K1 when falling back 1 retaining, and Transmitted chains is IN → KR → K1 → K2 → K3 → OUT; Oncoming clutch is KR and K2 when falling back 2 retainings, and Transmitted chains is IN → KR → K2 → K3 → OUT; Oncoming clutch is KR and K3 when falling back 3 retainings, and Transmitted chains is IN → KR → K3 → OUT.And these gear functions realize through hydraulic control system and electrical control.

Shown in Figure 2 is the schematic representation of K2/R clutch component, because the hydraulic control and the transmission principle of three clutch component are consistent, is the concrete joint working principle that example is introduced clutch with this clutch component below.All include several pieces friction plates in each clutch, friction plate is made up of powder metallurgy friction plate (powder sheet) and steel disc, and they are interlaced arranged.Wherein the powder sheet links to each other with internal spline in the clutch outer member through external splines, and steel disc is connected with the external splines of respective gears through internal spline, so we can be regarded as the powder sheet and clutch outer member is an one, and steel disc and accordingly gear be one.No pressure oil is done the time spent in clutch, exists the speed of relatively rotating (relative velocity between respective clutch gear and clutch outer member just) between powder sheet and the steel disc.And after the pressure oil by control valve control gets into the relevant pressure oil duct of its control through oil pipe; Promote corresponding clutch plunger; Make powder sheet and steel disc in the clutch under pressure and function of friction, combine (we can abbreviate clutch as this process); At this moment the Operating torque that clutch gear bore is just through friction plate transmission and clutch outer member, again by clutch outer member transmission and other workpiece.Such as K2 among Fig. 2, when the KR clutch engages simultaneously, the power on the KR gear is just through clutch outer member transmission and K2 gear, again by K2 gear transmission and other part.After pressure oil in the clutch disappeared, piston turned back to original position (position shown in Fig. 2) through returning spring (belleville spring group), and powder sheet and steel disc are also promptly thrown off, and the power that is transmitted also cuts off at this point.

Claims

1. torque converter; It mainly comprises: box part, fluid torque converter, input block, K1/V clutch component, K2/R clutch component, K3/4 clutch component, idle pulley parts, output block, control valve parts and power take-off parts; The input gear (11) that it is characterized in that described input block (3) meshes with the KV driving gear (12) of K1/V clutch component (4) and the KR driving gear (13) of K2/R clutch component (5) respectively; The KR driving gear (13) of K2/R clutch component (5) then with the engagement of the idle gear (14) of idle pulley parts (7); The engagement of intermediate gear (15) on the K1/V clutch component (4) and the intermediate gear (16) of K2/R clutch component (5), this intermediate gear (16) again with intermediate gear (17) engagement of K3/4 clutch component (6); The K1 gear (18) of K1/V clutch component (4) and the engagement of the K2 gear (19) of K2/R clutch component (5); With the coaxial K2 small gear (20) that is connected of K2 gear (19) again with the engagement of the K3 gear (21) of K3/4 clutch component (6); K4 gear (22) on the K3/4 clutch component (6) then meshes with said idle gear (14), and said K3 gear (21) meshes with the output gear (23) of output block (8).

2. torque converter according to claim 1; It is characterized in that disposing in the described K1/V clutch component (4) KV clutch, K1 clutch; Dispose K2 clutch and KR clutch in the K2/R clutch component (5); And in said K3/4 clutch component (6), dispose K3 clutch and K4 clutch, and above-mentioned each clutch is the identical friction plate clutch of being controlled by the control valve parts of structure; Described input block (3) includes input shaft, imports the oil pump that gear links to each other with the input shaft end; Described output block (8) comprises output shaft, output gear and output flange.

3. torque converter according to claim 2; It is characterized in that described friction plate clutch includes the friction plate that several pieces are made up of powder metallurgy friction plate and copper sheet; And they are interlaced arranged; Wherein the powder metallurgy friction plate links to each other with internal spline in the clutch outer member through external splines, and copper sheet is connected with the external splines of respective gears through internal spline; Be provided with in the centre of clutch shaft be communicated with piston cavity, with the pressure oil duct of solenoidoperated cluthes, be provided with the returning spring that makes piston turn back to original position at an end of said piston.