CN205387456U - Fork truck mechanical transmission - Google Patents
Fork truck mechanical transmission Download PDFInfo
- Publication number
- CN205387456U CN205387456U CN201620109773.8U CN201620109773U CN205387456U CN 205387456 U CN205387456 U CN 205387456U CN 201620109773 U CN201620109773 U CN 201620109773U CN 205387456 U CN205387456 U CN 205387456U
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Abstract
The utility model provides a fork truck mechanical transmission, including transmission housing, gear level, input shaft, selector shaft, axle, reverse gear shaft and output shaft go forward, be provided with the input tooth on the input shaft, be provided with the passive tooth of output on the output shaft, selector shaft is last to be provided with the input idler tooth of shifting gears, output driving tooth, the first gear that advances, second advance gear, third advance gear, a reverse gear and the 2nd reverse gear, the epaxial constant mesh gear that gos forward, the first driving gear that gos forward, second driving gear and the third driving gear that gos forward that gos forward that is provided with gos forward, reverse gear shaft is last to be provided with the normal engaging tooth that reverses gear, the output idler tooth that reverses gear, first reverse gear driving gear and second reverse gear the driving gear. The utility model discloses a setting of position is kept off to five friction speeds of fork truck mechanical transmission, do not reduce fork truck travel with tractive performance's the condition under, can improve 35% with fork truck maximum traveling speed, shorten the fork truck transition time, improve work efficiency.
Description
Technical field
This utility model relates to change speed gear box technical field, is specifically related to a kind of mechanical gear box for fork truck, is particularly suited for 3-3.5 ton forklift.
Background technology
At present, domestic it mostly is two or four friction speed gears after the first two for 3-3.5 ton forklift mechanical gear box gear, the manipulation gearshift of double; two gear levels；Each gear speed ratio respectively 3.253/1.407；3.204/1.386, the maximum travelling speed of fork truck is 19Km/h, and maximum travelling speed is slow, and fork truck transition times is long, inefficiency.
Utility model content
This utility model provides a kind of fork truck mechanical change speed gear box, it is achieved two or five friction speed gears after first three, fork truck maximum travelling speed can be improved 35%, and structural design is compact, reasonable, working stability, reliable, installs, easy to maintenance.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of fork truck mechanical change speed gear box, including:
Gear box casing, it is arranged on the gear level of this gear box casing upper end and is sequentially arranged at the power shaft in this transmission housing body, shifting shaft, advance shaft, reverse gear shaft and output shaft from top to bottom；
Described power shaft arranges input tooth, described output shaft is provided with output passive tooth；
Described shifting shaft is provided with gearshift input idler gear, output driving tooth, the first forward gear, the second forward gear, the 3rd forward gear, the first reverse gear and the second reverse gear；
Described advance shaft is provided with advance constant mesh gear, the first advance driving gear, the second advance driving gear and the 3rd advance driving gear；
Be provided with the normal engaging tooth that reverses gear on described reverse gear shaft, the output idler gear that reverses gear, first driving gear and second that reverses gear reverse gear driving gear；
Described input tooth with described gearshift input idler gear engage, described gearshift input idler gear engage with described advance constant mesh gear, described advance constant mesh gear engages with the described normal engaging tooth that reverses gear, described in reverse gear export idler gear engage with described output passive tooth；
Described first advance driving gear and the first forward gear, the second advance driving gear and the second forward gear, the 3rd advance driving gear and the 3rd forward gear keep normal engagement respectively；Described first reverse gear driving gear and the first reverse gear, second reverse gear driving gear and the second reverse gear keeps normal engagement respectively.
When neutral, each lock unit on shifting shaft and respective gears are in released state, and on shifting shaft, each gear is inertia rotation, and shifting shaft remains stationary state, does not transmit power；
When working gear, a certain lock unit is combined with respective gears, and lock unit drives shifting shaft to rotate, and exports power by the output driving tooth on shifting shaft.
Further, the speed ratio that described first advance driving gear, the second advance driving gear and the 3rd advance driving gear engage with the first forward gear, the second forward gear and the 3rd forward gear respectively is: 3.081:1.414:1.044.
Further, described first driving gear and second speed ratio that driving gear engages with the first reverse gear and the second reverse gear respectively that reverses gear that reverses gear is: 3.167:1.378.
Preferably, described gear level is monodromy pin.
From above technical scheme, the this utility model setting by five friction speed gears of fork truck mechanical change speed gear box, when not reducing fork truck and travelling with hauling ability, can improve 35% by fork truck maximum travelling speed, shorten fork truck transition times, improve work efficiency；Adopt the manipulation gearshift of monodromy pin, easy to operate, comfortable.
Accompanying drawing explanation
Fig. 1 is axial sectional view of the present utility model, it is shown that the engagement of each axle and gear；
Fig. 2 is axial sectional view of the present utility model, it is shown that the engagement of shifting shaft and each gear of reverse gear shaft；
Fig. 3 is the structural representation of shifting shaft and gear thereof in this utility model；
Fig. 4 is the structural representation of advance shaft and gear thereof in this utility model；
Fig. 5 is the structural representation of reverse gear shaft and gear thereof in this utility model.
In figure: 10, gear box casing, 20, gear level, 30, power shaft, 31, input tooth, 40, shifting shaft, 41, gearshift input idler gear, 42, output driving tooth, 43, first forward gear, 44, second forward gear, 45, 3rd forward gear, 46, first reverse gear, 47, second reverse gear, 48, gearshift lock unit, 50, advance shaft, 51, advance constant mesh gear, 52, first advance driving gear, 53, second advance driving gear, 54, 3rd advance driving gear, 60, reverse gear shaft, 61, reverse gear normal engaging tooth, 62, reverse gear output idler gear, 63, first reverses gear driving gear, 64, second reverses gear driving gear, 70, output shaft, 71, output passive tooth.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of preferred implementation of the present utility model is described in detail.
As it is shown in figure 1, described fork truck mechanical change speed gear box includes gear box casing 10, gear level 20, power shaft 30, shifting shaft 40, advance shaft 50, reverse gear shaft 60 and output shaft 70.
Described gear box casing 10 is cast member, and it is arranged between electromotor and main reducing gear.
Described gear level 20 is used for manipulating gearshift, can adopt monodromy pin, easy to operate comfortable.
Described power shaft 30, shifting shaft 40, advance shaft 50, reverse gear shaft 60 and output shaft 70 are sequentially arranged in described gear box casing 10 from top to bottom.The power of electromotor is inputted by power shaft 30, can convert speed change gear by manipulating shifting shaft 40；When being in forward range, transmit power by advance shaft 50；When be in fall back gear time, transmit power by reverse gear shaft 60；The power of change speed gear box exports eventually through output shaft 70.Described power shaft 30 is provided with input tooth 31, described output shaft 70 is provided with output passive tooth 71.
As shown in Figure 3, described shifting shaft 40 is disposed with gearshift input idler gear 41, output driving tooth the 42, first reverse gear the 46, first forward gear the 43, second reverse gear the 47, second forward gear 44 and the 3rd forward gear 45 from left to right, gearshift lock unit 48 it is provided with between each gear, the effect of wherein said output driving tooth 42 is when change speed gear box is in and advances or fall back gear, transmits power.
As shown in Figure 4, described advance shaft 50 is disposed with advance constant mesh gear the 51, first advance driving gear the 52, second advance driving gear 53 and the 3rd advance driving gear 54 from left to right.
As it is shown in figure 5, described reverse gear shaft 60 is provided with the normal engaging tooth 61 that reverses gear, the output idler gear 62 that reverses gear, first driving gear 63 and second that reverses gear reverse gear driving gear 64.
When fork truck mechanical change speed gear box normally uses, described input tooth 31 engages with described gearshift input idler gear 41, described gearshift input inertia tooth 41 engages with described advance constant mesh gear 51, described advance constant mesh gear 51 engages with the described normal engaging tooth 61 that reverses gear, described in reverse gear output idler gear 62 engage with described output passive tooth 71.Described power shaft 30 provides power, drives described advance shaft 50, reverse gear shaft 60, shifting shaft 40 and output shaft 70 to rotate successively, and power passes to main reducing gear by the spiral bevel gear on output shaft 70, it is achieved power exports.
As shown in Figure 1, described first advance driving gear the 52, second advance driving gear 53 and the 3rd advance driving gear 54 keep normal engage with described first forward gear the 43, second forward gears 44 and the 3rd forward gear 45 respectively, by controlling gearshift lock unit, the speed change of three forward gears can be realized.
The power transmission line of each gear of advancing is respectively as follows: advance I gear (gearshift lock unit 48 is combined) with the first forward gear 43: 30-31-41-51-50-52-43-40-42-62-71-70；Advance II gear (gearshift lock unit 48 is combined with the second forward gear 44): 30-31-41-51-50-53-44-40-42-62-71-70；Advance III gear (gearshift lock unit 48 is combined with the 3rd forward gear 45): 30-31-41-51-50-54-45-40-42-62-71-70.Described change speed gear box speed ratio is respectively as follows: 3.081:1.414:1.044.
As in figure 2 it is shown, described first reverse gear 46 and the second reverse gear 47 reverse gear with described first respectively, driving gear 63 and second driving gear 64 that reverses gear keeps normal and engages, and by controlling gearshift lock unit, can realize the speed changes of two gears that fall back.The power transmission line of each gear of falling back is respectively as follows: I gear that falls back (gearshift lock unit 48 is combined) with the first reverse gear 46: 30-31-41-51-61-60-63-46-40-42-62-71-70；Fall back II gear (gearshift lock unit 48 is combined with the second reverse gear 47): 30-31-41-51-61-60-64-47-40-42-62-71-70, described change speed gear box speed ratio is respectively as follows: 3.167:1.378.
The above embodiment is only that preferred implementation of the present utility model is described; not scope of the present utility model is defined; under the premise designing spirit without departing from this utility model; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present utility model are determined.
Claims (4)
1. a fork truck mechanical change speed gear box, it is characterised in that including:
Gear box casing (10), the gear level (20) being arranged on this gear box casing upper end and the power shaft (30) being sequentially arranged in this transmission housing body from top to bottom, shifting shaft (40), advance shaft (50), reverse gear shaft (60) and output shaft (70)；
Described power shaft (30) arranges input tooth (31), described output shaft (70) is provided with output passive tooth (71)；
Described shifting shaft (40) is provided with gearshift input idler gear (41), output driving tooth (42), the first forward gear (43), the second forward gear (44), the 3rd forward gear (45), the first reverse gear (46) and the second reverse gear (47)；
Described advance shaft (50) is provided with advance constant mesh gear (51), the first advance driving gear (52), the second advance driving gear (53) and the 3rd advance driving gear (54)；
Be provided with the normal engaging tooth (61) that reverses gear on described reverse gear shaft (60), output idler gear (62) of reversing gear, first driving gear (63) and second that reverses gear reverse gear driving gear (64)；
Described input tooth (31) is engaged with described gearshift input idler gear (41), described gearshift input idler gear (41) is engaged with described advance constant mesh gear (51), described advance constant mesh gear (51) is engaged with the described normal engaging tooth (61) that reverses gear, described in reverse gear output idler gear (62) engage with described output passive tooth (71)；
Described first advance driving gear (52) keeps often engaging with the 3rd forward gear (45) with the second forward gear (44), the 3rd advance driving gear (54) with the first forward gear (43), the second advance driving gear (53) respectively；Described first reverse gear driving gear (63) and the first reverse gear (46), second driving gear (64) that reverses gear keeps with the second reverse gear (47) often engaging respectively.
2. fork truck mechanical change speed gear box according to claim 1, it is characterized in that, the speed ratio that described first advance driving gear (52), the second advance driving gear (53) and the 3rd advance driving gear (54) engage with the first forward gear (43), the second forward gear (44) and the 3rd forward gear (45) respectively is: 3.081:1.414:1.044.
3. fork truck mechanical change speed gear box according to claim 1, it is characterized in that, described first driving gear (63) and second speed ratio that driving gear (64) engages with the first reverse gear (46) and the second reverse gear (47) respectively that reverses gear that reverses gear is: 3.167:1.378.
4. fork truck mechanical change speed gear box according to claim 1, it is characterised in that described gear level (20) is monodromy pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109773.8U CN205387456U (en) | 2016-02-03 | 2016-02-03 | Fork truck mechanical transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109773.8U CN205387456U (en) | 2016-02-03 | 2016-02-03 | Fork truck mechanical transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205387456U true CN205387456U (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620109773.8U Active CN205387456U (en) | 2016-02-03 | 2016-02-03 | Fork truck mechanical transmission |
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| Country | Link |
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| CN (1) | CN205387456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605164A (en) * | 2016-02-03 | 2016-05-25 | 安徽好运机械有限公司 | Mechanical gearbox for forklift |
-
2016
- 2016-02-03 CN CN201620109773.8U patent/CN205387456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605164A (en) * | 2016-02-03 | 2016-05-25 | 安徽好运机械有限公司 | Mechanical gearbox for forklift |
| CN105605164B (en) * | 2016-02-03 | 2020-03-31 | 安徽天乐传动技术发展有限公司 | Mechanical gearbox of forklift |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |