CN103398160B - A kind of fork truck hydrodynamic gearbox body - Google Patents
A kind of fork truck hydrodynamic gearbox body Download PDFInfo
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- CN103398160B CN103398160B CN201310359271.1A CN201310359271A CN103398160B CN 103398160 B CN103398160 B CN 103398160B CN 201310359271 A CN201310359271 A CN 201310359271A CN 103398160 B CN103398160 B CN 103398160B
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- oil channel
- channel hole
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- horizontal oil
- gear box
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Abstract
The present invention relates to a kind of fork truck hydrodynamic gearbox body.Comprise gear box, its end face offers window, is control valve attachment face, and a side end face adjacent with end face is converter cover attachment face; Converter cover is installed on basifacial casing and is offered the first horizontal oil channel hole, vertically oil channel hole, the second horizontal oil channel hole and step hole, is provided with tubular type filter core in step hole; External port and the step hole place of the second horizontal oil channel hole are provided with end cap, and end cap offers groove; Groove on tubular type filter core, step hole, the second horizontal oil channel hole and end cap realizes oil filtrating and conveying function, after the oil suction of tubular type filter core, by the groove on step hole and end cap, hydraulic oil is entered the second horizontal oil channel hole, then discharged by vertical oil channel hole and the first horizontal oil channel hole.Present invention reduces inlet line, improve the oil suction efficiency of the fluid power oil feed pump of transmission system; Facilitate the replacing maintenance of the tubular type filter core on gear box, reduce rate of fault, improve the working life of transmission system simultaneously.
Description
Technical field
The invention belongs to the gearbox hydraudynamic drive technical field of carrying vehicle, be specifically related to a kind of casing of fork truck hydrodynamic gearbox.
Background technique
At present, Domestic Forklift transmission system many employings hydraudynamic drive, its system hydraulic circuit mostly is and is integrated in gear box casing inside, and employing fluid clutch is gear shifting actuating mechanism.The dydraudynamic drive unit that H series 1-3.5t hydraudynamic drive fork truck adopts, is made up of fluid torque converter and the Powershift transmission with forward and backward each gear.Fluid torque converter makes this hydraulic transmission gear box have the automatic adaptability of hydraudynamic drive output, can along with the change of load its output torque of corresponding change and rotating speed, and can absorb and eliminate from motor and outer load the impact shock of transmission system, the overrunning clutch be mounted in it, improves power transmission efficiency; Inching valve can make fork truck can carry out inching operation when low engine speed or high speed, alleviates operator's labor intensity; Fluid clutch is equipped with friction plate through special processing and dividing plate, improves the wear resistance of friction plate.
As seen from Figure 4, existing gear box is built with oil purifier assembly, oil purifier assembly comprises former tubular type filter core (WU-63 × *-J, latus rectum 25mm, nominal flow rate 63L/min) 14, sleeve pipe 12 and L shape bend pipe 13, its working principle is: fluid is after former tubular type filter core 14 filters, first L shape bend pipe 13 is entered into, and the sleeve pipe 12 through coordinating with the first horizontal oil channel hole enters into converter cover oil duct, finally enters into transmission system fluid power oil feed pump.The oil-absorbing pipeline physical length of this structure is longer, and not only increase oil suction resistance but also reduce the efficiency of the fluid power oil feed pump of transmission system, oil purifier is arranged on gear box inside simultaneously, brings difficulty to transmission device periodic maintenance and maintenance.To periodic maintenance and maintenance, need power assembly to take apart from complete machine, and then transmission device be separated with motor, finally again by transmission device disintegrate, can carry out the replacing of oil purifier, this process is consuming time longer, dismounting and installation procedure various.Otherwise if can not periodic maintenance and maintenance, then filter core blocking causes pump efficiency to decline, transmission efficiency reduces, and system pressure does not reach setting value, and fluid clutch cannot normally work, system oil temperature rise causes transmission system service life reduction, and the estimated performance of transmission system can not get ensureing; If filter core damages and can not change in time, iron filings impurity then can cause the spool clamping stagnation of control valve, driving component heavy wear, the faults such as friction plate ablation.
Summary of the invention
In order to realize when not dismantling power assembly, maintain easily more renew cartridge, improve working life of transmission system, reduce rate of fault, the invention provides and a kind ofly improve the structure of oil-absorbing pipeline on gear box and the fork truck hydrodynamic gearbox body of filter core positional structure.
Concrete improvement opportunity scheme is as follows:
A kind of fork truck hydrodynamic gearbox body comprises gear box, and the end face of described gear box offers window, is control valve attachment face, and a side end face adjacent with end face is converter cover attachment face, the opposite side end face adjacent with end face is provided with flanged surface, a side between converter cover attachment face and flanged surface is leading flank, described leading flank middle and upper part is provided with the vernier scale flange of outwardly convex along short transverse, described vernier scale flange is adjacent with converter cover attachment face, the converter cover attachment face bottom adjacent with vernier scale flange offers the first horizontal oil channel hole stretching into box house, described first horizontal oil channel hole is blind hole, its external port is positioned on converter cover attachment face, improvement is: offer vertical oil channel hole with on the gear box of the first horizontal oil channel hole adjacent, described vertical oil channel hole is blind hole, the external port of vertical oil channel hole is positioned at the bottom surface of gear box, blocking is provided with in the external port of vertical oil channel hole, the inner port of the inner port of vertical oil channel hole and the first horizontal oil channel hole is through, gear box below described vernier scale flange offers the second horizontal oil channel hole, described second horizontal oil channel hole is blind hole, and its external port is positioned at leading flank, and inner port is communicated with the vertically middle part of oil channel hole, the gear box adjacent with the external port of the second horizontal oil channel hole offers step hole, in step hole, is provided with tubular type filter core, the gear box corresponding with the external port of the second horizontal oil channel hole and step hole is provided with end cap, the inner side surface of end cap offers the external port of the horizontal oil channel hole of connection second and the groove of step hole,
After the oil suction of described tubular type filter core, by the groove on end cap, hydraulic oil is entered the second horizontal oil channel hole, then discharged by vertical oil channel hole and the first horizontal oil channel hole; Described external port with the second horizontal oil channel hole and gear box corresponding to step hole are provided with boss, and the external port of the second horizontal oil channel hole and step hole through boss respectively, described end cap coordinates to be located on boss; The diameter of described first horizontal oil channel hole, the diameter of the second horizontal oil channel hole are 20 ~ 35 mm, diameter 50 ~ 60 mm of described step hole; The latus rectum of described tubular type filter core is 50mm, nominal flow rate 250L/min.
Advantageous Effects of the present invention embodies in the following areas
1. pass through the positional structure of oil purifier installation on gear box and the Optimal improvements of relevant oil-absorbing pipeline, shorten the length 63mm of inlet line, reduce the oil suction resistance of the fluid power oil feed pump of transmission system, improve the oil suction efficiency of the fluid power oil feed pump of transmission system;
2., due to the tubular type filter core horizontal positioned after improvement, suitably can increase length, filter area is increased, make flow system flow unaffected, thus the turbidity test of system are improved;
3. the present invention facilitates the replacing maintenance of the tubular type filter core on gear box, reduces rate of fault, improves the working life of transmission system simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation removing tubular type filter core.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is former gear box structural representation.
Sequence number in upper figure: control valve attachment face 1, converter cover attachment face 2, vernier scale flange 3, the horizontal oil channel hole 5 of gear box 4, first, the horizontal oil channel hole 7 of boss 6, second, step hole 8, vertically oil channel hole 9, end cap 10, tubular type filter core 11, sleeve pipe 12, L shape bend pipe 13, former tubular type filter core 14.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
Embodiment
See Fig. 1 and Fig. 2, a kind of fork truck hydrodynamic gearbox body comprises gear box 4, and the end face of gear box 4 offers window, is control valve attachment face 1; A side end face adjacent with end face is converter cover attachment face 2; The opposite side end face adjacent with end face is provided with flanged surface, a side between converter cover attachment face 2 and flanged surface is leading flank, leading flank middle and upper part is provided with the vernier scale flange 3 of outwardly convex along short transverse, and vernier scale flange 3 is adjacent with converter cover attachment face 2; It is blind hole that converter cover attachment face 2 bottom adjacent with vernier scale flange 3 offers the horizontal oil channel hole 5 of the first horizontal oil channel hole 5, first stretching into box house, and its external port is positioned on converter cover attachment face 2; Vertical oil channel hole 9 is offered with on the gear box of the first horizontal oil channel hole 5 adjacent, vertical oil channel hole 9 is blind hole, the external port of vertical oil channel hole 9 is positioned at the bottom surface of gear box 4, be provided with blocking in the external port of vertical oil channel hole 9, the inner port of the inner port of vertical oil channel hole 9 and the first horizontal oil channel hole 5 is through; Gear box 4 below vernier scale flange 3 offering the horizontal oil channel hole 7 of the second horizontal oil channel hole 7, second is blind hole, and its external port is positioned at leading flank, and inner port is communicated with the vertically middle part of oil channel hole 9; The gear box 4 adjacent with the external port of the second horizontal oil channel hole 7 offers step hole 8, and step hole 8 is built with tubular type filter core 11; The gear box corresponding with the external port of the second horizontal oil channel hole 7 and step hole 8 is provided with boss 6, and the external port of the second horizontal oil channel hole 7 and step hole 8 through boss 6 respectively, boss 6 coordinates end cap 10 is installed, the inner side surface of end cap 10 offers the external port of the horizontal oil channel hole 7 of connection second and the groove of step hole 8, end cap 10 1 aspect has been conveying liquid force feed and seal action, and effect is on the other hand the axial restraint making tubular type filter core.The diameter of the first horizontal oil channel hole 7 and the diameter of the second horizontal oil channel hole 7 are 20 mm, diameter 55 mm of step hole 8, and the latus rectum of tubular type filter core 11 is 50mm, nominal flow rate 250L/min.After tubular type filter core 11 oil suction, by the groove on step hole 8 and end cap, hydraulic oil is entered the second horizontal oil channel hole 7, then discharged by vertical oil channel hole 9 and the first horizontal oil channel hole 5.
When after engine start, transmission system fluid power oil feed pump is through tubular type filter core 11 oil suction from fuel tank, fluid is after tubular type filter core 11 filtration machinery impurity, as seen from Figure 3, groove on end cap 10 enters into the second horizontal oil channel hole 7, then enter into the first horizontal oil channel hole 5 by way of vertical oil channel hole 9, enter transmission system fluid power oil feed pump finally by the oil duct on converter cover.Pressure oil is divided into two-part by transmission system fluid power oil feed pump: a part is for fluid clutch, and a part is to torque-converters fuel feeding in addition.
Claims (3)
1. a fork truck hydrodynamic gearbox body, comprises gear box, and the end face of described gear box offers window, is control valve attachment face, and a side end face adjacent with end face is converter cover attachment face, the opposite side end face adjacent with end face is provided with flanged surface, a side between converter cover attachment face and flanged surface is leading flank, described leading flank middle and upper part is provided with the vernier scale flange of outwardly convex along short transverse, described vernier scale flange is adjacent with converter cover attachment face, the converter cover attachment face bottom adjacent with vernier scale flange offers the first horizontal oil channel hole stretching into box house, described first horizontal oil channel hole is blind hole, its external port is positioned on converter cover attachment face, it is characterized in that: offer vertical oil channel hole with on the gear box of the first horizontal oil channel hole adjacent, described vertical oil channel hole is blind hole, the external port of vertical oil channel hole is positioned at the bottom surface of gear box, blocking is provided with in the external port of vertical oil channel hole, the inner port of the inner port of vertical oil channel hole and the first horizontal oil channel hole is through, gear box below described vernier scale flange offers the second horizontal oil channel hole, described second horizontal oil channel hole is blind hole, and its external port is positioned at leading flank, and inner port is communicated with the vertically middle part of oil channel hole, the gear box adjacent with the external port of the second horizontal oil channel hole offers step hole, in step hole, is provided with tubular type filter core, the gear box corresponding with the external port of the second horizontal oil channel hole and step hole is provided with end cap, the inner side surface of end cap offers the external port of the horizontal oil channel hole of connection second and the groove of step hole,
After the oil suction of described tubular type filter core, by the groove on end cap, hydraulic oil is entered the second horizontal oil channel hole, then discharged by vertical oil channel hole and the first horizontal oil channel hole.
2. a kind of fork truck hydrodynamic gearbox body according to claim 1, it is characterized in that: described external port with the second horizontal oil channel hole and gear box corresponding to step hole are provided with boss, and the external port of the second horizontal oil channel hole and step hole through boss respectively, described end cap coordinates to be located on boss.
3. a kind of fork truck hydrodynamic gearbox body according to claim 1, is characterized in that: the latus rectum of described tubular type filter core is 50mm, nominal flow rate 250L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310359271.1A CN103398160B (en) | 2013-08-19 | 2013-08-19 | A kind of fork truck hydrodynamic gearbox body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310359271.1A CN103398160B (en) | 2013-08-19 | 2013-08-19 | A kind of fork truck hydrodynamic gearbox body |
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| CN103398160A CN103398160A (en) | 2013-11-20 |
| CN103398160B true CN103398160B (en) | 2015-10-21 |
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| CN201310359271.1A Active CN103398160B (en) | 2013-08-19 | 2013-08-19 | A kind of fork truck hydrodynamic gearbox body |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361340A (en) * | 2018-04-11 | 2018-08-03 | 安徽合力股份有限公司 | A kind of hydraulic transmission box |
| CN115467969B (en) * | 2022-09-13 | 2023-09-22 | 苏州亚太精睿传动科技股份有限公司 | Novel planetary gear type longitudinally-arranged gearbox structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200978935Y (en) * | 2006-12-13 | 2007-11-21 | 长沙航空工业中南传动机械厂 | Fork lifter hydraulic drive gear box with power fetching port |
| CN102758900A (en) * | 2012-07-24 | 2012-10-31 | 安徽合力股份有限公司 | Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism |
| CN203395146U (en) * | 2013-08-19 | 2014-01-15 | 安徽合力股份有限公司 | Forklift hydraulic gearbox box body |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3604744B2 (en) * | 1994-09-20 | 2004-12-22 | セイレイ工業株式会社 | Hydraulic oil supply device for vehicle transmission |
| JP3468364B2 (en) * | 2000-10-16 | 2003-11-17 | 日野自動車株式会社 | Transmission lubrication mechanism |
| JP2003106415A (en) * | 2001-09-28 | 2003-04-09 | Jatco Ltd | Belt lubrication structure of continuously variable transmission |
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- 2013-08-19 CN CN201310359271.1A patent/CN103398160B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200978935Y (en) * | 2006-12-13 | 2007-11-21 | 长沙航空工业中南传动机械厂 | Fork lifter hydraulic drive gear box with power fetching port |
| CN102758900A (en) * | 2012-07-24 | 2012-10-31 | 安徽合力股份有限公司 | Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism |
| CN203395146U (en) * | 2013-08-19 | 2014-01-15 | 安徽合力股份有限公司 | Forklift hydraulic gearbox box body |
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| CN103398160A (en) | 2013-11-20 |
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