CN202251706U - Electric forklift speed reduction box - Google Patents
Electric forklift speed reduction box Download PDFInfo
- Publication number
- CN202251706U CN202251706U CN2011203595307U CN201120359530U CN202251706U CN 202251706 U CN202251706 U CN 202251706U CN 2011203595307 U CN2011203595307 U CN 2011203595307U CN 201120359530 U CN201120359530 U CN 201120359530U CN 202251706 U CN202251706 U CN 202251706U
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- Prior art keywords
- gear
- box body
- differential assembly
- spiral bevel
- bevel gear
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- Expired - Fee Related
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- 239000003638 chemical reducing agent Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 8
- 238000005755 formation reaction Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses an electric forklift speed reduction box, which comprises a main box body, a sub box body, an input gear, an output gear, a spiral bevel gear shaft, a passive arc gear and a differential assembly, wherein one side of the main box body is fixedly connected with the sub box body, the shaft end of the spiral bevel gear shaft and the input gear are rotatablely arranged in a sealed box body space formed by the main box body and the sub box body through a bearing, the other side of the main box body is provided with the differential assembly through a conical bearing, the shaft end of the spiral bevel gear shaft is fixedly sheathed with the output gear, the output gear is engaged with the input gear, the bevel gear end of the spiral bevel gear shaft is engaged with the passive arc gear fixed on the differential assembly, and a round screw nut, a round screw nut stop gasket and the conical bearing are sequentially sheathed on two installing ends of the differential assembly from inside to outside. The technical scheme has the advantages that the high-speed-ratio speed reduction is realized, the box body is reduced, the noise is greatly reduced, and the engaging lateral clearance of a spiral bevel gear pair can be conveniently regulated.
Description
Technical field
The utility model belongs to machine power drive technology field, especially relates to a kind of electri forklift speed reducer that is applied on the engineering machinery such as electri forklift, carrier.
Background technique
For adapting to environmental requirement; Electri forklift more and more obtains everybody favor at present, and the speed reducer structure on the now common electri forklift has tertiary gear to slow down and secondary gear slows down two kinds: a kind of speed reducer that is the employing tertiary gear slows down is that three grades of cylindrical gears engagements make that volume is big, transmission efficiency is low and manufacture cost is higher; Another kind is to adopt the speed reducer that secondary gear slows down structurally to be generally a pair of spiral bevel gear pair and a pair of cylindrical gear pair; How with spiral bevel gear pair as the first order; Cylindrical gear pair is as the second level; Like notification number is the disclosed main gear down device that is used between tractor gearbox and the ransaxle of patent documentation of CN201092259Y, comprises input flange and is fixed in the casing on the ransaxle, is equiped with angular wheel shaft, umbrella gear, driving gearshaft, passive gear ring and differential assembly in the said casing; Said angular wheel shaft, driving gearshaft and differential assembly are supported on the casing through bearing respectively; Said umbrella gear is fixed on the driving gearshaft, and passive gear ring is fixed on the differential assembly, and the axle head of angular wheel shaft is connected with input flange; Gear end is connected with umbrella gear; The gear of driving gearshaft is connected with passive gear ring, and the bearing at driving gearshaft two ends is provided with the spacer that is used to adjust meshing backlass between angular wheel shaft and the umbrella gear through the shaft shoulder and bearing cap location between bearing (ball) cover and the bearing.But above-mentioned secondary gear slowing-down structure need be taken bearing (ball) cover repeatedly apart and increase and decrease the meshing backlass that spacer is adjusted spiral bevel gear pair when the meshing backlass of adjustment spiral bevel gear pair; Assembling and debugging speed reducer are very inconvenient like this, and because large speed ratio requires and the restriction of casing volume, the speed ratio of the spiral bevel gear pair of the first order can not be done to such an extent that very big making will be bigger relatively as partial cylindrical gear pair; Thereby make casing become long and narrow; Caused the volume of whole speed reducer bigger, weight is also bigger, is installed on the fork truck very inconvenient; More because present domestic spiral shell umbrella level of processing is on the low side; It is higher because of rotating speed to be arranged in first order transmission to spiral bevel gear, and noise just is difficult to reach machine requirement more greatly, is not suitable for producing in enormous quantities.
Summary of the invention
In order to solve above-mentioned technical problem; The purpose of the utility model provides a kind of electri forklift speed reducer; Input gear and output gear are formed cylindrical gearing pair as the first order; Spiral bevel gear wheel shaft and passive gear with curved teeth are formed the spiral bevel gear transmission as the second level; Two mounting ends of differential assembly are equiped with round nut and the round nut lock washer that is used to adjust the meshing backlass between spiral bevel gear wheel shaft and the passive gear with curved teeth, realize that the speed reducer volume reduces, and can adjust the meshing backlass of spiral bevel gear pair easily.
In order to reach above-mentioned purpose, the technological scheme below the utility model has adopted:
A kind of electri forklift speed reducer; Comprise main box body, auxiliary housing, input gear, output gear, spiral bevel gear wheel shaft, passive gear with curved teeth and differential assembly; Main box body one side is fixedly connected auxiliary housing; The axle head of said spiral bevel gear wheel shaft rotates in the closed box space that is arranged on main box body and auxiliary housing formation with the input gear through bearing; One-body molded two supporting arms that the installation differential assembly is arranged of main box body opposite side, said differential assembly is rotatably installed between two supporting arms through conical bearing; Said motor installation side is positioned on the auxiliary housing; Said input gear has the inner splined hole that can join with motor shaft; The axle head of said spiral bevel gear wheel shaft is fixed sheathed output gear; Output gear and input gear engagement, the umbrella increment of said spiral bevel gear wheel shaft stretch out main box body and mesh with the passive gear with curved teeth that is fixed on the differential assembly; Wherein, Sheathed successively from inside to outside round nut, round nut lock washer and said conical bearing on two mounting ends of said differential assembly; Round nut is threaded with differential assembly; The round nut lock washer offsets with the inner ring of round nut and conical bearing respectively and is connected, and the outer ring of conical bearing is fixed on the supporting arm; The output shaft of said input gear shaft, spiral bevel gear wheel shaft and differential assembly is positioned at same plane, and said input gear shaft is parallel with the spiral bevel gear wheel shaft and vertical with the output shaft of differential assembly.
The utility model has advantage owing to adopted above technological scheme with respect to existing product:
The one, input gear and output gear are formed first order cylindrical gearing pair; Spiral bevel gear wheel shaft and passive gear with curved teeth are formed second level spiral bevel gear transmission; Not only thereby the two-stage transmission can have bigger reduction speed ratio and makes speed reducer can realize that large speed ratio slows down; And structural design is more reasonable, the total length of speed reducer is shortened to be merely 2/3 of common electri forklift speed reducer total length, has significantly alleviated the weight of speed reducer; Make vehicle have more space capable of using, arrange for car load to provide more choices and cost advantage.
The 2nd, the two ends of differential assembly are equipped with round nut and the round nut lock washer that is used to adjust the meshing backlass between spiral bevel gear wheel shaft and the passive gear with curved teeth; Because differential assembly is installed in outside the casing; So when assembling and debugging speed reducer; The position that only need regulate differential assembly two terminal circle nut just can be adjusted the meshing backlass of spiral bevel gear pair easily, and operation is simple more, convenient.
The 3rd, the speed reducer noise reduces greatly.First order cylindrical gearing pair is installed in the casing; Help lubricated and reduce noise, and the bigger spiral bevel gear transmission of noise is positioned at the second level, because effective deceleration of the first order; The rotating speed of spiral bevel gear reduces greatly; Therefore the utility model is lower with respect to the existing technology noise, is prone to reach machine requirement, is fit to produce in enormous quantities.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure, 1. passive gear with curved teeth, 2. round nut, 3. round nut lock washer, 4. conical bearing, 5. differential assembly, 6. spiral bevel gear wheel shaft, 7. output gear, 8. auxiliary housing, 9. input gear, 10. main box body, 11. supporting arms.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done a detailed explanation.
Embodiment 1:
A kind of electri forklift speed reducer as shown in Figure 1; Comprise main box body 10, auxiliary housing 8, input gear 9, output gear 7, spiral bevel gear wheel shaft 6, passive gear with curved teeth 1 and differential assembly 5; Main box body 10 1 sides are fixedly connected auxiliary housing 8; The axle head of said spiral bevel gear wheel shaft 6 rotates in the closed box space that is arranged on main box body 10 and auxiliary housing 8 formations with input gear 9 through bearing; One-body molded two supporting arms 11 that installation differential assembly 5 is arranged of main box body 10 opposite sides, said differential assembly 5 is rotatably installed between two supporting arms 11 through conical bearing 4; Said motor installation side is positioned on the auxiliary housing 8; Said input gear 9 has the inner splined hole that can join with motor shaft; The axle head of said spiral bevel gear wheel shaft 6 is fixed sheathed output gear 7; Output gear 7 and 9 engagements of input gear, the umbrella increment of said spiral bevel gear wheel shaft 6 stretch out main box body 10 and mesh with the passive gear with curved teeth 1 that is fixed on the differential assembly 5; Wherein, Sheathed successively from inside to outside round nut 2, round nut lock washer 3 and said conical bearing 4 on two mounting ends of said differential assembly 5; Round nut 2 is threaded with differential assembly 5; Round nut lock washer 3 offsets with the inner ring of round nut 2 and conical bearing 4 respectively and is connected, and the outer ring of conical bearing 4 is fixed on the supporting arm 11; The output shaft of 9 of said input gears, spiral bevel gear wheel shaft 6 and differential assembly 5 is positioned at same plane, and 9 of said input gears are parallel and vertical with the output shaft of differential assembly 5 with spiral bevel gear wheel shaft 6.
In the utility model; Input gear 9 is formed the primary cylinder gear transmission with output gear 7; Spiral bevel gear wheel shaft 6 is formed deuterostrophies umbrella gear transmission with passive gear with curved teeth 1; The total length of speed reducer is shortened to be merely 2/3 of common electri forklift speed reducer total length; The two ends of differential assembly 5 are equiped with the round nut 2 and round nut lock washer 3 that is used to adjust the meshing backlass between spiral bevel gear wheel shaft 6 and the passive gear with curved teeth 1, and so only the position of two round nuts 2 of need rotation adjusting just can be adjusted the meshing backlass of spiral bevel gear pair easily.
Claims (1)
1. electri forklift speed reducer; It is characterized in that; Comprise main box body (10), auxiliary housing (8), input gear (9), output gear (7), spiral bevel gear wheel shaft (6), passive gear with curved teeth (1) and differential assembly (5); Main box body (10) one sides are fixedly connected auxiliary housing (8); The axle head of said spiral bevel gear wheel shaft (6) rotates through bearing in the closed box space that is arranged on main box body (10) and auxiliary housing (8) formation with input gear (9), one-body molded two supporting arms (11) that installation differential assembly (5) is arranged of main box body (10) opposite side, and said differential assembly (5) is rotatably installed between two supporting arms (11) through conical bearing (4); Said motor installation side is positioned on the auxiliary housing (8); Said input gear (9) has the inner splined hole that can join with motor shaft; The axle head of said spiral bevel gear wheel shaft (6) is fixed sheathed output gear (7); Output gear (7) and input gear (9) engagement, the umbrella increment of said spiral bevel gear wheel shaft (6) stretch out main box body (10) and mesh with the passive gear with curved teeth (1) that is fixed on the differential assembly (5); Wherein, Sheathed successively from inside to outside round nut (2), round nut lock washer (3) and said conical bearing (4) on two mounting ends of said differential assembly (5); Round nut (2) is threaded with differential assembly (5); Round nut lock washer (3) offsets with the inner ring of round nut (2) and conical bearing (4) respectively and is connected, and the outer ring of conical bearing (4) is fixed on the supporting arm (11); The output shaft of said input gear (9) axle, spiral bevel gear wheel shaft (6) and differential assembly (5) is positioned at same plane, and said input gear (9) axle is parallel with spiral bevel gear wheel shaft (6) and vertical with the output shaft of differential assembly (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203595307U CN202251706U (en) | 2011-09-23 | 2011-09-23 | Electric forklift speed reduction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203595307U CN202251706U (en) | 2011-09-23 | 2011-09-23 | Electric forklift speed reduction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251706U true CN202251706U (en) | 2012-05-30 |
Family
ID=46112952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203595307U Expired - Fee Related CN202251706U (en) | 2011-09-23 | 2011-09-23 | Electric forklift speed reduction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359550A (en) * | 2011-09-23 | 2012-02-22 | 赣州五环机器有限责任公司 | Electric forklift speed reduction box |
-
2011
- 2011-09-23 CN CN2011203595307U patent/CN202251706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359550A (en) * | 2011-09-23 | 2012-02-22 | 赣州五环机器有限责任公司 | Electric forklift speed reduction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 341000 Jiangxi Province, Ganzhou City Development Zone, Jinling Road on the south side of Industrial Road on the west side of two Patentee after: GANZHOU WUHUAN MACHINE CO., LTD. Address before: 341000 Jiangxi Province, Ganzhou City Development Zone, Jinling Road on the south side of Industrial Road on the west side of two Patentee before: Ganzhou Wuhuan Machine Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200923 |