CN103481730A - Multifunctional wet axle of rear-driven electric forklift - Google Patents
Multifunctional wet axle of rear-driven electric forklift Download PDFInfo
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- CN103481730A CN103481730A CN201310412946.4A CN201310412946A CN103481730A CN 103481730 A CN103481730 A CN 103481730A CN 201310412946 A CN201310412946 A CN 201310412946A CN 103481730 A CN103481730 A CN 103481730A
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- brake cylinder
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- multifunctional wet
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Abstract
The invention discloses a multifunctional wet axle of a rear-driven electric forklift. The multifunctional wet axle comprises an output axle shaft, one end of the output axle shaft is connected with a planet carrier, a planet gear assembly is connected with an inner gear ring on the other side thereof in a meshed manner, the outer side of the inner gear ring is connected with the inner wall of the inner gear ring, a friction plate, a spacer and a retaining collar are arranged on the inner side of the inner gear ring, the planet gear assembly is connected with a sun gear on the inner side thereof in a meshed manner, the top of one end of the output axle shaft is connected with one end of the sun gear, a return spring is arranged among a pressing sheet, the sun gear and a piston, an inner ring of a sun gear support is connected with one end of a cover, an outer ring of the other end of the cover is connected with one end of a brake cylinder assembly, the other end of the brake cylinder assembly is connected with one end of a pressing rod, and the other end of the pressing rod is connected with one end of the piston through a sliding bearing. The multifunctional wet axle has the advantages of good universality, compact structure, low cost, large space for legs of an operator, long service life and the like.
Description
Technical field
The present invention relates to a kind of rear-guard electri forklift multifunctional wet bridge, be applicable to the optimization of driving system of forklift truck, brake system, human engineering, propulsion source, belong to the fork truck technical field.
Background technology
Along with to complete machine vertically, the performance requriementss such as turn radius of lateral stability, high-order load-carrying capacity, handling comfort, complete machine are more and more higher.This just requires car load to have the characteristics such as front overhang is little, capacity of cell large, the wheel radius is little, operator's leg room is large, the car load wheelbase is short simultaneously.The electri forklift propons has following shortcoming now: (1) adopts dry type braking, when making small wheels, is subject to the dimensional restriction of wheel rim; outside the external wheel rim of drg palpus; when built-in, the drg external diameter is less, cause braking force not meet the demands, and the drg life-span is shorter; (2) door frame load fulcrum, at the pontic center, causes the door frame front overhang larger, and door frame center of gyration height is high, and the pulling force of dump ram is larger, car load vertical, horizontal less stable; (3) when complete machine coupling small wheels, and braking force is while meeting the car load requirement, and ground Clearance, propons overall dimensions are larger, take the car load inner space large, make car load that high-capacity storage battery can not be installed; (4) restriction of the external and overall width of dry brake, vehicle frame must adopt rebound to be connected with propons, and the car load wheelbase is larger, causes turn radius larger.The problems referred to above of car load have seriously restricted complete machine and have realized the potential possibility that performance, human engineering improve.
Summary of the invention
The technical problem to be solved in the present invention is: provide that a kind of crossing ability is good, compact conformation, cost is low, operator's leg room is large, the life-span is high rear-guard electri forklift multifunctional wet bridge, having solved braking force can not meet the demands, and the drg life-span is shorter, car load vertical, horizontal less stable, take the car load inner space large, the problem that turn radius is larger.
In order to solve the problems of the technologies described above, technical scheme of the present invention has been to provide a kind of rear-guard electri forklift multifunctional wet bridge, it is characterized in that, comprise output axle shaft, one end of output axle shaft is connected with pinion carrier, pinion carrier is provided with the satellite gear assembly, the internally toothed annulus in satellite gear assembly and its outside is connected with a joggle, the outside of internally toothed annulus is connected with the inwall of housing, the inboard of internally toothed annulus is provided with friction lining, partition and baffle ring, the satellite gear assembly sun wheel inboard with it is connected with a joggle, the top of output axle shaft one end is connected with an end of sun wheel, the both sides of sun wheel are respectively equipped with compressing tablet and piston, compressing tablet, be provided with pull back spring between sun wheel and piston, one end of piston is connected with a side of sun wheel bearing outer ring, the inner ring of sun wheel bearing is connected with an end of cap, the outer ring of the cap other end is connected with an end of brake cylinder assembly, the other end of brake cylinder assembly is connected with an end of depression bar, the other end of depression bar is connected with an end of piston by plain bearing, the middle part of brake cylinder assembly is connected with the middle part of the cap other end by bearing pin.
Preferably, described brake cylinder assembly comprises the brake cylinder housing, be provided with spring in the brake cylinder housing, one end of spring is connected with the inwall of brake cylinder housing, the other end of spring is connected with an end of push rod by the brake cylinder piston, the other end of push rod is connected with the outer ring of the cap other end, and the outside of brake cylinder housing is provided with Steel Tube Special and tapped bore.
Preferably, described friction lining and partition all are located between compressing tablet, pull back spring and piston.
Preferably, described friction lining at least is provided with 2, and described partition at least is provided with 1.
Preferably, described friction lining is connected with the partition interval.
Preferably, described compressing tablet is connected with piston by pull back spring.
Preferably, described housing is provided with bearing cap shim, forms a mounting hole between bearing cap shim and housing.
The present invention also has the following advantages:
1, door frame load settlement of support, increase the dump ram arm of force, reduced the pulling force of dump ram, and dump ram can be arranged in below base plate, increased operator's leg room, optimized the Ergonomics design of car load.
2, adopt wheel limit planetary reduction gear structure design, dwindled the axle housing overall dimensions, increased the ground Clearance, guarantee that in the situation that car load is shorter at wheelbase larger assembled batteries space still can be arranged.
3, adopt enclosed multi-disc self-cooled oil-immersed multi-disk brake, compact conformation can provide larger brake torque under less pressure, dustproof, waterproof is good, the life-span is higher, can significantly reduce the problem of the faults such as life-span of dry brake is short.
4, adopt self-cooled and unique manual braking to provide the design of Hydraulic System of braking medium to save complicated design of Hydraulic System, make cost lower.
5, overall dimensions are less, and the ground Clearance is larger, and when using the steamboat tire, turn radius is less, still has crossing ability preferably.
6, load wet braking before planet circular system slows down, adopt the mode of embracing floated semiaxis to realize braking, required braking force is little, and braking steadily.
7, the Multifunctional brake that integrates Parking, service brake.
The accompanying drawing explanation
The perspective view that Fig. 1 is a kind of rear-guard electri forklift multifunctional wet bridge;
The cross-sectional view that Fig. 2 is a kind of rear-guard electri forklift multifunctional wet bridge;
The upper TV structure partial cutaway schematic that Fig. 3 is a kind of rear-guard electri forklift multifunctional wet bridge;
The structural representation that Fig. 4 is the brake cylinder assembly;
The generalized section that Fig. 5 is Fig. 4;
The axles such as three-dimensional that Fig. 6 is the brake cylinder assembly measure intention;
Fig. 7 is the generalized section that pinion carrier and satellite gear assembly are installed;
Fig. 8 is the schematic three dimensional views that a kind of rear-guard electri forklift multifunctional wet bridge and tire are installed;
The generalized section that Fig. 9 is Fig. 8;
Figure 10 is the scheme of installation of a kind of rear-guard electri forklift multifunctional wet bridge on car load.
The specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
This friend is bright is a kind of rear-guard electri forklift multifunctional wet bridge, as shown in Figure 1-Figure 3, mainly by output axle shaft 17, pinion carrier 16, satellite gear assembly 14, internally toothed annulus 15, sun wheel 13, friction lining 3, partition 4, piston 5, brake cylinder assembly 11, housing 1, cap 6 etc., formed.Bearing cap shim 25 is installed on housing 1, forms a mounting hole 30 between bearing cap shim 25 and housing 1, realized the door frame settlement of support.One end of output axle shaft 17 is connected with pinion carrier 16 by female splines, and comes pinion carrier 16 axial limitings by jam nut; Three satellite gear assembly 14 rivet clasps (as shown in Figure 7) on pinion carrier 16, be connected with a joggle in the internally toothed annulus 15 in satellite gear assembly 14 and its outside carries out, and the outside of internally toothed annulus 15 is bolted on the inwall of housing 1; Sun wheel 13 two ends respectively have one section to be processed into involute teeth, satellite gear assembly 14 sun wheel 13 inboard with it carried out external toothing and is connected, the friction lining 3 of oil-immersed multi-disk brake meshes the spacing inboard on internally toothed annulus 15 of circumference by involute teeth, spacing by baffle ring 2 away from cap 6 axial directions, baffle ring 2 is arranged on the internally toothed annulus 15 of friction lining 3 one sides, the partition 4 that is arranged on friction lining 3 one sides by the involute teeth with sun wheel 13 afterbodys be connected with a joggle carry out radially spacing.4 one intervals every of friction lining 3 and partition are connected, and friction lining 3 has 2 at least, and partition 4 has 1 at least, is installed between compressing tablet 26, pull back spring 27 and piston 5.
The top of output axle shaft 17 1 ends is connected with an end of sun wheel 13, the both sides of sun wheel 13 are separately installed with compressing tablet 26 and piston 5, compressing tablet 26, three pull back springs 27 are installed between sun wheel 13 and piston 5, compressing tablet 26 is connected with piston 5 by pull back spring 27, by bolt by compressing tablet 26, sun wheel 13, piston 5 is fastened on a side of sun wheel bearing 12 outer rings, the inner ring of sun wheel bearing 12 is by bearing 10, back-up ring is axial, radially spacing on an end of cap 6, and then the end that is connected with sun wheel bearing 12 of sun wheel 13 is respectively by radially, axial location is on cap 6, sun wheel 13 other ends also carry out radial location by needle bearing simultaneously, the outer ring of cap 6 other ends is connected with the push rod 22 of brake cylinder assembly 11 1 ends, the other end of brake cylinder assembly 11 is connected with an end of depression bar 8, the other end of depression bar 8 is connected with an end of piston 5 by plain bearing 7, and the middle part of brake cylinder assembly 11 is spacing on the middle part of cap 6 other ends by bearing pin 9.
As Fig. 4-Fig. 6, brake cylinder assembly 11 comprises brake cylinder housing 20, spring 29 is installed in brake cylinder housing 20, one end of spring 29 is connected with the inwall of brake cylinder housing 20, the other end of spring 29 is connected with an end of push rod 22 by brake cylinder piston 28, the other end of push rod 22 is connected with the outer ring of cap 6 other ends, and the outside of brake cylinder housing 20 is equipped with Steel Tube Special 21 and has tapped bore 23.
The state of the present invention in the time of work is as follows:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, under the car load back-wheel drive, front-wheel rotates and drives output axle shaft 17 and rotate, and because output axle shaft 17 connects with pinion carrier 16 by female splines, by jam nut, carrys out the axial limiting to pinion carrier 16; Just having driven pinion carrier 16 when output axle shaft 17 rotates synchronously rotates; And then three rivet clasps satellite gear assembly 14 rotations have thereon been driven by pinion carrier 16; Satellite gear assembly 14, internally toothed annulus 15, sun wheel 13 have just formed the planet circular system of a differential, and satellite gear assembly 14 carries out interior engaged transmission with internally toothed annulus 15, with sun wheel 13, carries out the external toothing transmission, and then have driven sun wheel 13 runnings; Sun wheel 13 is bolted on sun wheel bearing 12 by six, sun wheel bearing 12 by bearing 10 and baffle ring 2 limited be supported on cap 6.
When piston 5 does not compress the friction lining of oil-immersed multi-disk brake 3 with partition 4, sun wheel 13 is rotated and has just been driven partition 4 rotations, friction lining 3 is spacing on internally toothed annulus 15 by circumference, when piston 5 compresses the two, close contact between friction lining 3 and partition 4, just produced friction brake force between the two contact surface.
As Fig. 2, Fig. 5, shown in Fig. 6, to brake cylinder assembly 11, when the braking medium enters the inner chamber of brake cylinder housing 20 by Steel Tube Special 21, the braking medium will promote the spring force that brake cylinder piston 28 overcomes spring 29 and advance, and then push rod 22 is withstood on cap 6, now cap 6 will produce the anti-power of work to push rod 22, crossing of two power makes 20 front end compressing depression bar 8 motions of brake cylinder housing, depression bar 8 promotes plain bearing 7 and moves inward, and then plain bearing 7 just promotes piston pressing friction sheet 3 and partition 4, the braking force produced between friction lining 3 and partition 4 just stops sun wheel 13 to be rotated, and then realized driving wet braking function, when the hydraulic system pressure from complete machine is removed, three pull back springs 27 just promote 5 times original positions of piston, and service brake has just realized releasing,
Tapped bore 23 on brake cylinder housing 20 connects the brake cable pull of complete machine configuration; during Parking; brake cylinder housing 20 is under the pulling of brake cable pull; brake cylinder assembly 11 is around bearing pin 9 rotations; and then will make 20 front end compressing depression bar 8 motions of brake cylinder housing; depression bar 8 promotes plain bearing 7 and moves inward; and then plain bearing 7 just promotes piston 5 pressing friction sheets 3 and partition 4; the braking force produced between friction lining 3 and partition 4 just stops sun wheel 13 to be rotated, and then has realized parking wet braking function; When the drawing cable mechanism from complete machine is removed, three pull back springs just promote 5 times original positions of piston, and service brake has just realized releasing.
As shown in Fig. 1, Fig. 8, Fig. 9, Figure 10, Fig. 1 is a kind of rear-guard electri forklift of the present invention shown in Fig. 8 multifunctional wet bridge 50, each rear-guard electri forklift multifunctional wet bridge 50 of left and right is arranged on the front end of vehicle frame 52 symmetrically, and the outside Matching installation of each rear-guard electri forklift multifunctional wet bridge 50 has tire 51.
As shown in Figure 1, Figure 10 shows, while coordinating between bearing cap shim 25 and housing 1, form a mounting hole 30, the door frame assembly just is arranged on this mounting hole 30 places by the door frame pivot shaft on outer mast together with self-lubricating bearing, and then has realized the door frame settlement of support; Six screws on housing 1, with six tapped bore of vehicle frame 52 front end both sides by bolt to together with sled, formed the situation of the center of gyration of car load at the axle housing center.
Claims (7)
1. a rear-guard electri forklift multifunctional wet bridge, it is characterized in that, comprise output axle shaft (17), one end of output axle shaft (17) is connected with pinion carrier (16), pinion carrier (16) is provided with satellite gear assembly (14), satellite gear assembly (14) is connected with a joggle with the internally toothed annulus (15) in its outside, the outside of internally toothed annulus (15) is connected with the inwall of housing (1), the inboard of internally toothed annulus (15) is provided with friction lining (3), partition (4) and baffle ring (2), satellite gear assembly (14) sun wheel (13) inboard with it is connected with a joggle, the top of output axle shaft (17) one ends is connected with an end of sun wheel (13), the both sides of sun wheel (13) are respectively equipped with compressing tablet (26) and piston (5), compressing tablet (26), be provided with pull back spring (27) between sun wheel (13) and piston (5), one end of piston (5) is connected with a side of sun wheel bearing (12) outer ring, the inner ring of sun wheel bearing (12) is connected with an end of cap (6), the outer ring of cap (6) other end is connected with an end of brake cylinder assembly (11), the other end of brake cylinder assembly (11) is connected with an end of depression bar (8), the other end of depression bar (8) is connected with an end of piston (5) by plain bearing (7), the middle part of brake cylinder assembly (11) is connected with the middle part of cap (6) other end by bearing pin (9).
2. a kind of rear-guard electri forklift multifunctional wet bridge as claimed in claim 1, it is characterized in that, described brake cylinder assembly (11) comprises brake cylinder housing (20), be provided with spring (29) in brake cylinder housing (20), one end of spring (29) is connected with the inwall of brake cylinder housing (20), the other end of spring (29) is connected with an end of push rod (22) by brake cylinder piston (28), the other end of push rod (22) is connected with the outer ring of cap (6) other end, the outside of brake cylinder housing (20) is provided with Steel Tube Special (21) and tapped bore (23).
3. a kind of rear-guard electri forklift multifunctional wet bridge as claimed in claim 1, is characterized in that, described friction lining (3) and partition (4) all are located between compressing tablet (26), pull back spring (27) and piston (5).
4. a kind of rear-guard electri forklift multifunctional wet bridge as claimed in claim 3, is characterized in that, described friction lining (3) at least is provided with 2, and described partition (4) at least is provided with 1.
5. a kind of rear-guard electri forklift multifunctional wet bridge as claimed in claim 4, is characterized in that, described friction lining (3) is connected with partition (4) interval.
6. a kind of rear-guard electri forklift multifunctional wet bridge as claimed in claim 1, is characterized in that, described compressing tablet (26) is connected with piston (5) by pull back spring (27).
7. a kind of rear-guard electri forklift multifunctional wet bridge as claimed in claim 1, is characterized in that, described housing (1) is provided with bearing cap shim (25), forms a mounting hole (30) between bearing cap shim (25) and housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412946.4A CN103481730B (en) | 2013-09-11 | 2013-09-11 | Multifunctional wet axle of rear-driven electric forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412946.4A CN103481730B (en) | 2013-09-11 | 2013-09-11 | Multifunctional wet axle of rear-driven electric forklift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103481730A true CN103481730A (en) | 2014-01-01 |
| CN103481730B CN103481730B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310412946.4A Active CN103481730B (en) | 2013-09-11 | 2013-09-11 | Multifunctional wet axle of rear-driven electric forklift |
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| Country | Link |
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| CN (1) | CN103481730B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034797A (en) * | 2015-08-06 | 2015-11-11 | 安徽合力股份有限公司 | Rear wheel drive electric forklift provided with wet-type braking front axles |
| CN110239282A (en) * | 2019-05-30 | 2019-09-17 | 龙工（上海）叉车有限公司 | A kind of electri forklift multifunctional wet drive system |
| CN115215265A (en) * | 2022-06-07 | 2022-10-21 | 采埃孚合力传动技术(合肥)有限公司 | Electric forklift driving system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6296087B1 (en) * | 1999-10-27 | 2001-10-02 | Meritor Heavy Vehicle Systems, Llc | Wet disc brake with internal drive/external cooler |
| CN201824798U (en) * | 2010-09-16 | 2011-05-11 | 山东临工工程机械有限公司 | Wet brake driving axle |
| CN202935089U (en) * | 2012-12-06 | 2013-05-15 | 安徽合力股份有限公司 | Multifunctional wet axle of 5-to-10-ton forklift |
| CN203063922U (en) * | 2012-09-21 | 2013-07-17 | 广西柳工机械股份有限公司 | Device for achieving circulation of cooling liquid of wet-type bridge final drive brake |
| CN203528201U (en) * | 2013-09-11 | 2014-04-09 | 龙工（上海）叉车有限公司 | Multifunctional wet-type axle of rear-driven electric forklift |
-
2013
- 2013-09-11 CN CN201310412946.4A patent/CN103481730B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6296087B1 (en) * | 1999-10-27 | 2001-10-02 | Meritor Heavy Vehicle Systems, Llc | Wet disc brake with internal drive/external cooler |
| CN201824798U (en) * | 2010-09-16 | 2011-05-11 | 山东临工工程机械有限公司 | Wet brake driving axle |
| CN203063922U (en) * | 2012-09-21 | 2013-07-17 | 广西柳工机械股份有限公司 | Device for achieving circulation of cooling liquid of wet-type bridge final drive brake |
| CN202935089U (en) * | 2012-12-06 | 2013-05-15 | 安徽合力股份有限公司 | Multifunctional wet axle of 5-to-10-ton forklift |
| CN203528201U (en) * | 2013-09-11 | 2014-04-09 | 龙工（上海）叉车有限公司 | Multifunctional wet-type axle of rear-driven electric forklift |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034797A (en) * | 2015-08-06 | 2015-11-11 | 安徽合力股份有限公司 | Rear wheel drive electric forklift provided with wet-type braking front axles |
| CN110239282A (en) * | 2019-05-30 | 2019-09-17 | 龙工（上海）叉车有限公司 | A kind of electri forklift multifunctional wet drive system |
| CN115215265A (en) * | 2022-06-07 | 2022-10-21 | 采埃孚合力传动技术(合肥)有限公司 | Electric forklift driving system |
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| CN103481730B (en) | 2015-09-30 |
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