CN203395109U - Transmission case of micro-cultivator - Google Patents
Transmission case of micro-cultivator Download PDFInfo
- Publication number
- CN203395109U CN203395109U CN201320464282.1U CN201320464282U CN203395109U CN 203395109 U CN203395109 U CN 203395109U CN 201320464282 U CN201320464282 U CN 201320464282U CN 203395109 U CN203395109 U CN 203395109U
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- gear
- shaft
- casing
- gap bridge
- little
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Abstract
The utility model discloses a transmission case of a micro-cultivator. A variable-gear gear (3) is arranged on the shaft body of a main shaft (2) in a sleeve mode, a first-gear gear (4) and a second-gear gear (5) are fixedly sleeved outside an auxiliary shaft (7), one end of the auxiliary shaft (7) is provided with a transmission pinion (8) which is engaged with a transmission large gear (9) on a driving shaft (10), and a reverse-gear gear (6) is arranged on the driving shaft (10) in an idling mode, the shaft body of the driving shaft (10), which is located between the transmission large gear (9) and the reverse-gear gear (6), is provided with an input gear (11), and the input gear (11) is engaged with an output gear (18) through a plurality of bridge gears. The transmission case of the micro-cultivator is simple and compact in structure, small and exquisite in size, convenient to install and maintain, low in power loss, high in transmission efficiency and strong in shock-resistant capacity; the transmission is stable and reliable and gears and cases can be effectively prevented from being damaged by striking.
Description
Technical field
The utility model belongs to microtilling machine technical field, specifically, and the particularly transmission case on microtilling machine.
Background technique
At present, between driving shaft in transmission box for tiller and output shaft, conventionally adopt chain to carry out transferring power, not only complex structure, cost is high, installation and maintenance are difficult, and kinetic equation loss is larger, transmission efficiency is low, impact resistance is little, and chain also easily elongates, is out of shape even and breaks, and makes casing have the hidden danger of being broken.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of reliable transmission, transmission box for tiller that transmission efficiency is high.
The technical solution of the utility model is as follows: a kind of transmission box for tiller, there is casing (1), it is characterized in that: described casing (1) is the uncovered monolithic construction in upper end, upper end at casing (1) is supported with main shaft (2) by bearing, one end level of this main shaft (2) is stretched out outside casing (1), described main shaft (2) is positioned on the axle body of casing (1) and is set with variable block gear (3), and this variable block gear (3) is duplicate gear, and can be in the upper slippage of main shaft (2), in described casing (1), be provided with the first gear (4) that can be meshed with variable block gear (3), second gear (5) and reverse gear (6), described first gear (4) and second gear (5) are placed on countershaft (7) admittedly, this countershaft (7) parallels with main shaft (2), countershaft (7) is supported in casing (1) by bearing, in one end of described countershaft (7), be provided with driving pinion (8), this driving pinion (8) is meshed with transmission gearwheel (9), described transmission gearwheel (9) is set in one end of driving shaft (10), the other end empty set reverse gear (6) at driving shaft (10), this reverse gear (6) often meshes with first gear (4), at described driving shaft (10), be positioned on the axle body between transmission gearwheel (9) and reverse gear (6) and be set with input gear (11), this input gear (11) is meshed with large gap bridge tooth (13), described large gap bridge tooth (13) kink is on large bridge shaft (12), and the tooth (13) of passing a bridge greatly meshes with the first little gap bridge tooth (14) of its below, described the first little gap bridge tooth (14) kink is on the first little bridge shaft (15), this first little gap bridge tooth (14) meshes with the second little gap bridge tooth (16) of its below, described the second little gap bridge tooth (16) kink is on the second little bridge shaft (17), and the second little gap bridge tooth (16) meshes with the output gear (18) of its below, described output gear (18) is positioned at the inside of casing (1) lower end, and output gear (18) is placed on the neutral position of output shaft (19) admittedly, described output shaft (19) supports mutually by two bearings that are arranged side by side and casing (1), and oppositely stretch out outside casing (1) at the two ends of output shaft (19).
Between driving shaft in the utility model and output shaft, adopt a plurality of carrier gears to carry out transferring power, not only kinetic equation loss is little, and transmission efficiency is high, and strong shock resistance, and stable drive, reliable, can effectively prevent that gear or casing from being broken.Transmission case compact overall structure, volume are small and exquisite, install and safeguard all very simple; The utlity model has two forward gears and the gear that falls back, can carry out as required gear switching, can meet on the one hand the use needs of different occasions, on the other hand, gear switches not only convenient but also steady, handling good.
For simplified structure, be convenient to assembling, and prevent that first gear and second gear from moving axially, described first gear (4) and second gear (5) are fixed together, form duplex-gear, the end face butt of one end of this duplex-gear and driving pinion (8), the other end of duplex-gear and lining (20) butt.
In order to ensure sealing effect, prevent leakage of oil, described countershaft (7) and driving shaft (10) one end are wherein by end cap oil sealing (21) sealing arranging separately, and the other end is sealed by same oil sealing plate (22).
It is firm for bridge shaft is installed, described large bridge shaft (12), the first little bridge shaft (15) and the second little bridge shaft (17) are provided with gap bridge gland (23) with the outside of one end, bolt (24) passes gap bridge gland (23) and stretches in corresponding axle, and this axle and casing (1) are fixed together.
As preferably, the inner of described gap bridge gland (23) is formed with annular boss, and this annular boss embeds in casing (1).
For the ease of the bearing to inner and oil sealing location, the bilateral symmetry in described casing (1) lower end is provided with large cover (27), and this large cover (27) fixes by many bolt and the casings (1) that evenly arrange.
Beneficial effect: the utility model is simple in structure, compact, and volume is small and exquisite, installs and safeguards conveniently, and on the one hand kinetic equation loss is little, and transmission efficiency is high, strong shock resistance; On the other hand, stable drive, reliable, can effectively prevent that gear or casing from being broken.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the plan view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1 and Figure 2, casing 1 is the uncovered monolithic construction in upper end, and the upper end of casing 1 is sealed by hard-wired vertical tube socket.Upper end at described casing 1 is supported with main shaft 2 by bearing, and one end level of this main shaft 2 is stretched out outside casing 1, and is provided with external splines at this end of main shaft 2.Described main shaft 2 is positioned on the axle body of casing 1 and is set with variable block gear 3, and this variable block gear 3 is duplicate gear, has two fluted discs of size.Variable block gear 3 and main shaft 2 spline fitted, on the excircle at variable block gear 3 middle parts, be provided with annular groove, annular groove phase clamping on the fork of shift fork 25 and variable block gear 3, the shank of shift fork 25 and declutch shift shaft 26 fix, and described declutch shift shaft 26 is supported on casing, and parallel with main shaft 2, declutch shift shaft 26 can move axially, when declutch shift shaft 26 moves, by shift fork 25, drive the slippage on main shaft 2 of variable block gear 3, to change engagement object.
As Fig. 1, shown in Fig. 2, in described casing 1, be provided with the first gear 4 that can be meshed with variable block gear 3, second gear 5 and reverse gear 6, described first gear 4 and second gear 5 are placed on countershaft 7 admittedly, this countershaft 7 parallels with main shaft 2, countershaft 7 is supported in casing 1 by bearing, in one end of described countershaft 7, be provided with driving pinion 8, this driving pinion 8 is structure as a whole with countershaft 7, driving pinion 8 is meshed with transmission gearwheel 9, described transmission gearwheel 9 is set in driving shaft 10 one end, the other end empty set reverse gear 6 at driving shaft 10, this reverse gear 6 often meshes with first gear 4.Described first gear 4 and second gear 5 are fixed together, and form duplex-gear, the end face butt of one end of this duplex-gear and driving pinion 8, the other end of duplex-gear and lining 20 butts.Described countershaft 7 and driving shaft 10 one end are wherein by end cap oil sealing 21 sealings that arrange separately, and the other end is by 22 sealings of same oil sealing plate.
As shown in Figure 1, at driving shaft 10, on the axle body between transmission gearwheel 9 and reverse gear 6, be set with input gear 11, this input gear 11 is meshed with large gap bridge tooth 13, described large gap bridge tooth 13 kinks are on large bridge shaft 12, and the tooth 13 of passing a bridge greatly meshes with the first little gap bridge tooth 14 of its below, described the first little gap bridge tooth 14 kinks are on the first little bridge shaft 15, this first little gap bridge tooth 14 meshes with the second little gap bridge tooth 16 of its below, described the second little gap bridge tooth 16 kinks are on the second little bridge shaft 17, and the second little gap bridge tooth 16 meshes with the output gear 18 of its below.The outside of the little bridge shaft 15 of described large bridge shaft 12, first and second little bridge shaft 17Tong one end is provided with gap bridge gland 23, and bolt 24 passes gap bridge gland 23 and stretches in corresponding axle, and this axle and casing 1 are fixed together.The inner of described gap bridge gland 23 is formed with annular boss, and this annular boss embeds in casing 1.
As shown in Figure 1, output gear 18 is positioned at the inside of casing 1 lower end, and output gear 18 is placed on output shaft 19 neutral position admittedly, and described output shaft 19 supports mutually by two bearings that are arranged side by side and casing 1, and output shaft 19 oppositely stretches out outside casing 1 at two ends.Bilateral symmetry in described casing 1 lower end is provided with large cover 27, and this large cover 27 fixes by many bolt and the casings 1 that evenly arrange.
The utlity model has two forward gears and the gear that falls back, be respectively:
When variable block gear 3 meshes with first gear 4, the power of main shaft 2 drives first gear 4 to rotate by variable block gear 3, first gear 4 drives countershaft 7 and driving pinion 8 rotations, driving pinion 8 drives driving shaft 10 and input gear 11 to rotate by transmission gearwheel 9 again, input gear 11 passes to output gear 18 through the large little gap bridge tooth 14 of gap bridge tooth 13, first and the second little gap bridge tooth 16 successively by power, and output shaft 19 is rotated; In above process, reverse gear 6 idle running.
When variable block gear 3 meshes with second gear 5, the power of main shaft 2 drives second gear 5 to rotate by variable block gear 3, second gear 5 drives countershaft 7 and driving pinion 8 rotations, driving pinion 8 drives driving shaft 10 and input gear 11 to rotate by transmission gearwheel 9 again, input gear 11 passes to output gear 18 through the large little gap bridge tooth 14 of gap bridge tooth 13, first and the second little gap bridge tooth 16 successively by power, and output shaft 19 is rotated; In above process, reverse gear 6 idle running.
When variable block gear 3 meshes with reverse gear 6, the power of main shaft 2 drives reverse gear 6 to rotate by variable block gear 3, reverse gear 6 drives countershaft 7 and driving pinion 8 rotations by first gear 4, driving pinion 8 drives driving shaft 10 and input gear 11 to rotate by transmission gearwheel 9 again, input gear 11 passes to output gear 18 through the large little gap bridge tooth 14 of gap bridge tooth 13, first and the second little gap bridge tooth 16 successively by power, makes output shaft 19 reversions.
Claims (6)
1. a transmission box for tiller, there is casing (1), it is characterized in that: described casing (1) is the uncovered monolithic construction in upper end, upper end at casing (1) is supported with main shaft (2) by bearing, one end level of this main shaft (2) is stretched out outside casing (1), described main shaft (2) is positioned on the axle body of casing (1) and is set with variable block gear (3), and this variable block gear (3) is duplicate gear, and can be in the upper slippage of main shaft (2);
In described casing (1), be provided with the first gear (4) that can be meshed with variable block gear (3), second gear (5) and reverse gear (6), described first gear (4) and second gear (5) are placed on countershaft (7) admittedly, this countershaft (7) parallels with main shaft (2), countershaft (7) is supported in casing (1) by bearing, in one end of described countershaft (7), be provided with driving pinion (8), this driving pinion (8) is meshed with transmission gearwheel (9), described transmission gearwheel (9) is set in one end of driving shaft (10), the other end empty set reverse gear (6) at driving shaft (10), this reverse gear (6) often meshes with first gear (4),
At described driving shaft (10), be positioned on the axle body between transmission gearwheel (9) and reverse gear (6) and be set with input gear (11), this input gear (11) is meshed with large gap bridge tooth (13), described large gap bridge tooth (13) kink is on large bridge shaft (12), and the tooth (13) of passing a bridge greatly meshes with the first little gap bridge tooth (14) of its below, described the first little gap bridge tooth (14) kink is on the first little bridge shaft (15), this first little gap bridge tooth (14) meshes with the second little gap bridge tooth (16) of its below, described the second little gap bridge tooth (16) kink is on the second little bridge shaft (17), and the second little gap bridge tooth (16) meshes with the output gear (18) of its below,
Described output gear (18) is positioned at the inside of casing (1) lower end, and output gear (18) is placed on the neutral position of output shaft (19) admittedly, described output shaft (19) supports mutually by two bearings that are arranged side by side and casing (1), and oppositely stretch out outside casing (1) at the two ends of output shaft (19).
2. according to the transmission box for tiller described in claims 1, it is characterized in that: described first gear (4) and second gear (5) are fixed together, form duplex-gear, the end face butt of one end of this duplex-gear and driving pinion (8), the other end of duplex-gear and lining (20) butt.
3. according to the transmission box for tiller described in claims 1, it is characterized in that: described countershaft (7) and driving shaft (10) one end are wherein by end cap oil sealing (21) sealing arranging separately, and the other end is sealed by same oil sealing plate (22).
4. according to the transmission box for tiller described in claims 1, it is characterized in that: described large bridge shaft (12), the first little bridge shaft (15) and the second little bridge shaft (17) are provided with gap bridge gland (23) with the outside of one end, bolt (24) passes gap bridge gland (23) and stretches in corresponding axle, and this axle and casing (1) are fixed together.
5. according to the transmission box for tiller described in claims 4, it is characterized in that: the inner of described gap bridge gland (23) is formed with annular boss, this annular boss embeds in casing (1).
6. according to the transmission box for tiller described in claims 1, it is characterized in that: the bilateral symmetry in described casing (1) lower end is provided with large cover (27), this large cover (27) fixes by many bolt and the casings (1) that evenly arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320464282.1U CN203395109U (en) | 2013-07-31 | 2013-07-31 | Transmission case of micro-cultivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320464282.1U CN203395109U (en) | 2013-07-31 | 2013-07-31 | Transmission case of micro-cultivator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395109U true CN203395109U (en) | 2014-01-15 |
Family
ID=49906644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320464282.1U Expired - Fee Related CN203395109U (en) | 2013-07-31 | 2013-07-31 | Transmission case of micro-cultivator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363028A (en) * | 2013-07-31 | 2013-10-23 | 重庆嘉木机械有限公司 | Driving box for mini-tiller |
-
2013
- 2013-07-31 CN CN201320464282.1U patent/CN203395109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363028A (en) * | 2013-07-31 | 2013-10-23 | 重庆嘉木机械有限公司 | Driving box for mini-tiller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |