CN102537267B - A kind of hydraulic torque converter for fork truck - Google Patents
A kind of hydraulic torque converter for fork truck Download PDFInfo
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- CN102537267B CN102537267B CN201010589069.4A CN201010589069A CN102537267B CN 102537267 B CN102537267 B CN 102537267B CN 201010589069 A CN201010589069 A CN 201010589069A CN 102537267 B CN102537267 B CN 102537267B
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- hub
- turbine
- hubcap
- guard ring
- guide wheel
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Abstract
The present invention relates to a kind of hydraulic torque converter for fork truck, comprise hubcap assembly, turbine assembly, impeller assemblies and guide wheel assembly; Hubcap assembly comprises hubcap hub, hubcap shell; Turbine assembly comprises turbine hub, turbine body; Impeller assemblies comprises pump impeller hub, pump impeller body; Guide wheel assembly comprises front guard ring, rear guard ring, guide wheel body; Three guarantees sheet bearing, thrust plate, ball bearing is provided with between hubcap hub and turbine hub, between turbine hub and front guard ring, between rear guard ring and pump impeller hub; Bearing between hubcap hub and turbine hub is three guarantees sheet bearing, is provided with three guarantees sheet bearing between turbine hub and front guard ring, is provided with three guarantees sheet bearing between rear guard ring and pump impeller hub, and three guarantees sheet bearing is arranged between rear guard ring and ball bearing.The invention solves existing hydraulic torque converter for fork truck positioned internal unreasonable, serious wear, occur the technical problem of noise, the present invention has the hydraulic torque converter for fork truck of low oil consumption, low noise, high pulling torque.
Description
Technical field
The present invention relates to a kind of hydraulic torque converter for fork truck, main applicable 1-4 ton forklift.
Background technique
Find after analyzing prior art data and domestic and international automobile torque-converters, there are two critical defects, cause product reliability poor, complete-vehicle oil consumption is high.1, torque-converters performance and Engine Matching unreasonable, fork truck oil consumption is high, and tractive force is not enough; 2, positioned internal is unreasonable, serious wear, occurs noise.
Now be described below:
1. identical motor is mated with dissimilar fluid torque converter, or different motor mates with same fluid torque converter, the average output power value of transformer turbine axle is larger, the coupling that mean unit fuel consumption is minimum, should think the most rational.The engine power ranges that 1-3 ton forklift uses from 25KW to 45KW not etc.The torque-converters that 1-3 ton forklift uses, structural type has nearly hundred kinds, but performance is almost the same, so just there is the situation of different motor and same fluid torque converter Performance Match.By the load parabola of the clean moment of torsion of motor, net power, SFC and fluid torque converter, be plotted in together with identical system of coordinates, both can obtain the co-operation input characteristics of motor and torque-converters.On car load, the torque-converters most of the time is operated in the scope of speed ratio value 0.7 ~ 0.9, now the load parabola of torque-converters and the intersection point of engine net power curve many after peak power point, this is interval, the oil consumption of motor is higher, and output torque is also lower.The display of a large amount of matching result, power is greater than the motor of 38KW, and the most of the time is all operated in high oil consumption district, causes that car load tractive force is not enough, oil consumption is high, and torque-converters oil temperature is high.
2. conventional 1-3 ton forklift torque-converters in use often occurs that noise is large, and inter deterioration produces the phenomenon of the failure of worn metals.As shown in Figure 1, the internal structure of conventional 1-3 ton forklift torque-converters is shown in accompanying drawing one, is ball bearing 2 between hubcap and turbine, is sliding bearing between turbine and guide wheel, is thrust bearing 14 between guide wheel and pump impeller.Structural analysis in conjunction with gearbox finds, under individual cases, and 1, ball bearing between hubcap and turbine can make turbine shaft cross location, cause the inner flexure stress of torque-converters excessive, accelerate the wearing and tearing of torque-converters inner body.Repeatedly the decomposition analysis of noise torque-converters is found, there is heavy wear in the sliding friction surface of the guard ring of the large torque-converters of noise and the sliding bearing between turbine and guide wheel, in addition, a thrust plate cylindrical serious wear near guide wheel between guide wheel and pump impeller in partial noise torque-converters, in pump impeller hub, side locating face is also ground with groove.Find after large component analysis, guard ring wearing and tearing are because control procedure error causes rubbing surface planeness deficiency to cause due to sliding friction surface, and thrust plate wearing and tearing between guide wheel and pump impeller, because the thrust plate positioning form in figure is not suitable for working at high speed conditions, so just cause torque-converters noise large, there is the phenomenons such as worn metals in inside.
Summary of the invention
Unreasonable in order to solve existing hydraulic torque converter for fork truck positioned internal, serious wear, there is the technical problem of noise, the invention provides a kind of fork truck hydraulic moment changeable, be applicable to 38KW-45KW motor, low oil consumption, low noise, high pulling torque hydraulic torque converter for fork truck.
Technical solution of the present invention:
A kind of hydraulic torque converter for fork truck, comprises hubcap assembly, turbine assembly, impeller assemblies and guide wheel assembly; Described hubcap assembly comprises hubcap hub 1, hubcap shell 5; Described turbine assembly comprises turbine hub 3, turbine body 6; Described impeller assemblies comprises pump impeller hub 16, pump impeller body 9; Described guide wheel assembly comprises front guard ring 4, rear guard ring 13, inner race 12, overrunning clutch 11, outer race 10, guide wheel body 8; , between described rear guard ring 13 and pump impeller hub 16, be provided with three guarantees sheet bearing III 24, thrust plate 36, ball bearing 15;
Its special way is:
Be provided with three guarantees sheet bearing I 22 between described hubcap hub 1 and turbine hub 3, be provided with three guarantees sheet bearing II 23 between described turbine hub 3 and front guard ring 4, described three guarantees sheet bearing III 24 is arranged between rear guard ring 13 and ball bearing 15.
Described thrust plate 36 is arranged between three guarantees sheet bearing III 24 and ball bearing 15.
The advantage that the present invention has:
1, hydraulic torque converter for fork truck of the present invention thoroughly overcomes intrinsic deficiency structure, substantially increase product reliability, performance improves and can hold, from before 31Nm ~ 35Nm bring up to 40Nm ~ 44Nm, the oil consumption of the fork truck that 38KW ~ 45KW motor is housed can be made to reduce by 10% ~ 15%, tractive force improves 15% ~ 20%, substantially increases car load economic performance performance and automatic conformability.
2, hydraulic torque converter for fork truck of the present invention, inner supporting structure is made an adjustment, sealing is connected by three guarantees sheet bearing, what eliminate turbine shaft crosses location, stop the inner various forms of sliding friction of torque-converters, reduce the noise of torque-converters, simultaneously also solve bad wearing and tearing and the bad phenomenon of worn metals that produces, occur.Substantially increase the reliability of product, product working life can be increased substantially.
3, three guarantees sheet bearing of the present invention can prevent the wearing and tearing of the front guard ring between turbine hub and guide wheel.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing fluid torque converter;
Fig. 2 is the structural representation of fluid torque converter of the present invention;
Wherein reference character is: 1-hubcap hub, 2-ball bearing, 3-turbine hub, guard ring before 4-, 5-hubcap shell, 6-turbine body, 7-elastic plate, 8-guide wheel body, 9-pump impeller body, 10-outer race, 11-overrunning clutch, 12-inner race, guard ring after 13-, 14-thrust bearing, 15-ball bearing, 16-pump impeller hub, 21-hubcap hub, 22-three guarantees sheet bearing I, 23-three guarantees sheet bearing II, 24-three guarantees sheet bearing III, 36-thrust plate.
Embodiment
Be illustrated in figure 2 the structural representation of fluid torque converter of the present invention, a kind of hydraulic torque converter for fork truck, comprise hubcap assembly, turbine assembly, impeller assemblies and guide wheel assembly; Hubcap assembly comprises hubcap hub 1, hubcap shell 5; Turbine assembly comprises turbine hub 3, turbine body 6; Impeller assemblies comprises pump impeller hub 16, pump impeller body 9; Guide wheel assembly comprises front guard ring 4, rear guard ring 13, inner race 12, overrunning clutch 11, outer race 10, guide wheel body 8; Be provided with three guarantees sheet bearing between hubcap hub 1 and turbine hub 3, between turbine hub 3 and front guard ring 4, be provided with three guarantees sheet bearing II 23, between rear guard ring 13 and pump impeller hub 16, be provided with three guarantees sheet bearing III 24, thrust plate 36, ball bearing 15; Bearing between hubcap hub 1 and turbine hub 3 is three guarantees sheet bearing I 22, three guarantees sheet bearing II 23 is provided with between turbine hub 3 and front guard ring 4, be provided with three guarantees sheet bearing III 24 between rear guard ring 13 and pump impeller hub 16, described three guarantees sheet bearing III 24 is arranged between rear guard ring 13 and ball bearing 15.Also arrange thrust plate 36 between guide wheel body 8 and pump impeller hub 16, thrust plate 36 is arranged between three guarantees sheet bearing III 24 and ball bearing 15.
Comprise hubcap assembly, turbine assembly, impeller assemblies and guide wheel assembly, described turbine assembly and guide wheel assembly are arranged in the cavity that hubcap assembly and impeller assemblies surround, and elastic plate 7 is fixedly connected with hubcap hub 1,
The hubcap shell 5 that hubcap assembly comprises hubcap hub 1, one end is fixedly connected with hubcap hub 1 and the hubcap active chamber formed with turbine assembly;
The turbine body 6 that turbine assembly comprises turbine hub 3, one end is fixedly connected with turbine hub 3 and the turbine chamber that guide wheel assembly is formed;
The pump impeller body 9 that impeller assemblies comprises pump impeller hub 16, one end is fixedly connected with pump impeller hub 16 and the pump impeller active chamber formed with guide wheel assembly;
Guide wheel assembly comprises guide wheel body 8, overrunning clutch 11, outer race 10, inner race 12, front guard ring 4 and rear guard ring 13; overrunning clutch is between outer race and inner race; and by front guard ring and the left back protection of rear guard ring, guide wheel is fixedly connected with outer race and is placed between turbine chamber and turbine chamber.The other end of hubcap shell, turbine body and pump impeller body is sealedly and fixedly connected, hubcap hub and turbine hub are connected by three guarantees sheet bearing I 22 and seal hubcap active chamber, described turbine hub and guide wheel are connected by three guarantees sheet bearing and seal turbine chamber, and the described guide wheel the other end and pump impeller hub are connected by three guarantees sheet bearing and seal pump impeller active chamber.
The circulate circle diameter of fluid torque converter is 265mm, zero-speed torque ratio K
0=3 ± 5%, zero-speed pump impeller thousand turns of nominal moment M
bg0=42 ± 2N.m highest efficiency eta
max=0.817
-0.025.
Claims (2)
1. a hydraulic torque converter for fork truck, comprises hubcap assembly, turbine assembly, impeller assemblies and guide wheel assembly; Described hubcap assembly comprises hubcap hub (1), hubcap shell (5); Described turbine assembly comprises turbine hub (3), turbine body (6); Described impeller assemblies comprises pump impeller hub (16), pump impeller body (9); Described guide wheel assembly comprises front guard ring (4), rear guard ring (13), inner race (12), overrunning clutch (11), outer race (10), guide wheel body (8); Three guarantees sheet bearing III (24), thrust plate (36), ball bearing (15) is provided with between described rear guard ring (13) and pump impeller hub (16);
It is characterized in that:
Three guarantees sheet bearing I (22) is provided with between described hubcap hub (1) and turbine hub (3), be provided with three guarantees sheet bearing II (23) between described turbine hub (3) and front guard ring (4), described three guarantees sheet bearing III (24) is arranged between rear guard ring (13) and ball bearing (15).
2. hydraulic torque converter for fork truck according to claim 1, is characterized in that: described thrust plate (36) is arranged between three guarantees sheet bearing III (24) and ball bearing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010589069.4A CN102537267B (en) | 2010-12-15 | 2010-12-15 | A kind of hydraulic torque converter for fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010589069.4A CN102537267B (en) | 2010-12-15 | 2010-12-15 | A kind of hydraulic torque converter for fork truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537267A CN102537267A (en) | 2012-07-04 |
| CN102537267B true CN102537267B (en) | 2015-07-29 |
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ID=46344934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010589069.4A Active CN102537267B (en) | 2010-12-15 | 2010-12-15 | A kind of hydraulic torque converter for fork truck |
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| Country | Link |
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| CN (1) | CN102537267B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295694A (en) * | 2014-09-10 | 2015-01-21 | 广西柳工机械股份有限公司 | Take-off device of bulldozer hydraulic torque converter |
| CN104500678B (en) * | 2014-12-22 | 2017-02-22 | 贵州凯星液力传动机械有限公司 | Transmission structure of hydraulic torque converter |
| JP2016217436A (en) * | 2015-05-19 | 2016-12-22 | 本田技研工業株式会社 | Torque converter device |
| CN105179633A (en) * | 2015-10-08 | 2015-12-23 | 金华市华海机械有限公司 | Pump hub gear sleeve and machining process thereof |
| CN105443713A (en) * | 2015-12-18 | 2016-03-30 | 陕西航天动力高科技股份有限公司 | Guide roller assembly for hydraulic torque converters |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859095Y (en) * | 2005-12-14 | 2007-01-17 | 陕西航天动力高科技股份有限公司 | Minicar used hydrodynamic torque-converter |
| CN200989428Y (en) * | 2006-12-11 | 2007-12-12 | 陕西航天动力高科技股份有限公司 | Hydraulic moment variator for engineering machinery |
| CN201953941U (en) * | 2010-12-15 | 2011-08-31 | 陕西航天动力高科技股份有限公司 | Hydrodynamic torque converter used in a fork truck |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7828128B2 (en) * | 2007-11-29 | 2010-11-09 | Ford Global Technologies, Llc | Control of fluid pressure in a torque converter of an automatic transmission |
-
2010
- 2010-12-15 CN CN201010589069.4A patent/CN102537267B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859095Y (en) * | 2005-12-14 | 2007-01-17 | 陕西航天动力高科技股份有限公司 | Minicar used hydrodynamic torque-converter |
| CN200989428Y (en) * | 2006-12-11 | 2007-12-12 | 陕西航天动力高科技股份有限公司 | Hydraulic moment variator for engineering machinery |
| CN201953941U (en) * | 2010-12-15 | 2011-08-31 | 陕西航天动力高科技股份有限公司 | Hydrodynamic torque converter used in a fork truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102537267A (en) | 2012-07-04 |
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