CN214092898U - Transmission case - Google Patents
Transmission case Download PDFInfo
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- CN214092898U CN214092898U CN202023332743.9U CN202023332743U CN214092898U CN 214092898 U CN214092898 U CN 214092898U CN 202023332743 U CN202023332743 U CN 202023332743U CN 214092898 U CN214092898 U CN 214092898U
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- transmission
- bevel gear
- transmission case
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Abstract
The utility model discloses a transmission case, include: the transmission case comprises a case body, wherein a cylindrical gear reduction mechanism and a conical gear transmission mechanism which are connected are arranged in the case body, a head shaft of the cylindrical gear reduction mechanism is a transmission case input shaft, and an output shaft of the conical gear transmission mechanism is a transmission case output shaft; the bevel gear transmission mechanism comprises a driving bevel gear and a driven bevel gear which are meshed with each other, the driven bevel gear is fixed on an output shaft of the transmission case, and the driving bevel gear is fixed on a tail shaft of the cylindrical gear reduction mechanism. The utility model discloses a transmission case utilizes a pair of bevel gear pair to replace the worm gear transmission pair, has solved the problem that worm gear transmission pair intensity is low, generate heat many, wear-resisting and life is short for transmission case life prolongs greatly, and the mechanical device of using transmission case goes out the rate of service, and work efficiency is high.
Description
Technical Field
The utility model relates to a transmission case.
Background
After the mower cuts grass in the orchard, a thick grass layer is formed on the ground, and the grass layer has the effects of moisturizing and increasing soil organic matters, so that the yield of the orchard can be increased. The transmission case of current lawn mower generally adopts the worm gear transmission, rotates by worm gear drive walking wheel, and the turbine generally is made by copper, and the size is smaller, and intensity is low, and is not wear-resisting, generates heat much, leads to turbine life short, changes more frequently, seriously restricts the normal use of transmission case, and the lawn mower rate of attendance is low, has reduced the efficiency of mowing.
Disclosure of Invention
To the above-mentioned not enough, the utility model discloses the technical problem that will solve is: provides a transmission case with long service life.
In order to solve the technical problem, the technical scheme of the utility model is that:
a transmission case comprising: the transmission case comprises a case body, wherein a cylindrical gear reduction mechanism and a conical gear transmission mechanism which are connected are arranged in the case body, a head shaft of the cylindrical gear reduction mechanism is a transmission case input shaft of the transmission case, and an output shaft of the conical gear transmission mechanism is a transmission case output shaft of the transmission case; the bevel gear transmission mechanism comprises a driving bevel gear and a driven bevel gear which are meshed with each other, the driven bevel gear is fixed on the output shaft of the transmission case, and the driving bevel gear is fixed on the last shaft of the cylindrical gear reduction mechanism.
Preferably, the driving bevel gear and the driven bevel gear are both bevel gears made of steel.
Preferably, the cylindrical gear reduction mechanism includes:
the head shaft, the tail shaft and the intermediate shaft are positioned between the head shaft and the tail shaft and are parallel to each other;
a head shaft driving cylindrical gear is fixed on the head shaft;
the intermediate shaft is fixed with an intermediate shaft driven cylindrical gear and an intermediate shaft driving cylindrical gear, and the intermediate shaft driven cylindrical gear is meshed with the head shaft driving cylindrical gear;
and a tail shaft driven cylindrical gear is fixed on the tail shaft and is meshed with the intermediate shaft driving cylindrical gear.
Preferably, the box body is in an inverted L shape, the box body comprises a box body horizontal section and a box body vertical section which are fixedly connected together, the head shaft and the middle shaft are arranged on the box body horizontal section, and the tail shaft is arranged on the box body vertical section; the head shaft, the tail shaft and the middle shaft are all vertically arranged.
Preferably, the box body comprises an upper cover, a lower cover and a bevel gear box body, the upper cover and the lower cover are fixedly connected to form the horizontal section of the box body, and the bevel gear box body is fixed on the lower cover to form the vertical section of the box body.
Preferably, the head shaft is fixedly provided with a driven pulley.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the transmission case comprises a case body, and a cylindrical gear reduction mechanism and a conical gear transmission mechanism which are arranged in the case body and connected with each other, wherein a head shaft of the cylindrical gear reduction mechanism is an input shaft of the transmission case, and an output shaft of the conical gear transmission mechanism is an output shaft of the transmission case; the bevel gear transmission mechanism comprises a driving bevel gear and a driven bevel gear which are meshed with each other, the driven bevel gear is fixed on an output shaft of the transmission case, and the driving bevel gear is fixed on a tail shaft of the cylindrical gear reduction mechanism. When the transmission case is used, the transmission case is arranged on the mower, the power of the power device of the mower is input through the input shaft of the transmission case, is output through the output shaft of the transmission case after being reduced by the cylindrical gear reduction mechanism and the conical gear transmission mechanism, the output shaft of the transmission case drives the traveling wheels of the mower to rotate, and the mower moves forwards at a certain speed. The utility model discloses a transmission case utilizes the bevel gear pair of a pair of steel material to replace the worm gear transmission pair, has solved the problem that worm gear transmission pair intensity is low, generate heat many, wear-resisting and life is short for transmission case life prolongs greatly.
Drawings
FIG. 1 is a schematic cross-sectional view of a transmission case of the present invention;
FIG. 2 is a schematic structural view of a mower with a transmission case of the present invention (mainly illustrating a transmission system);
in the figure: 1-an engine; 11-a power take-off shaft; 2-a clutch; 3-a driving pulley; 4-cutting the cutter shaft; 5-cutting knife; 6-a transmission case; 60-driven bevel gear; 61-home axis; 62-intermediate shaft; 63-end axis; 64-a driven pulley; 65-first axis driving cylindrical gear; 66-countershaft driven spur gear; 67-countershaft drive spur gear; 68-final shaft driven cylindrical gear; 69-drive bevel gear; 6 a-transmission case output shaft; 6 b-a box body; 6 c-upper cover; 6 d-lower cover; 6 e-bevel gear box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the transmission case 6 includes a case body 6b, and a cylindrical gear reduction mechanism and a conical gear transmission mechanism which are arranged in the case body 6b and connected with each other, wherein a first shaft 61 of the cylindrical gear reduction mechanism is a transmission case input shaft, and an output shaft of the conical gear transmission mechanism is a transmission case output shaft 6 a.
The cylindrical gear reduction mechanism includes: the device comprises a head shaft 61, a tail shaft 63 and a middle shaft 62 positioned between the head shaft 61 and the tail shaft 63, wherein the head shaft 61, the tail shaft 63 and the middle shaft 62 are vertically arranged in parallel; a head shaft driving cylindrical gear 65 is fixed on the head shaft 61; an intermediate shaft driven cylindrical gear 66 and an intermediate shaft driving cylindrical gear 67 are fixed on the intermediate shaft 62, and the intermediate shaft driven cylindrical gear 66 is meshed with the head shaft driving cylindrical gear 65; the tail position shaft 63 is fixed with a tail position shaft driven cylindrical gear 68, and the tail position shaft driven cylindrical gear 68 is meshed with the intermediate shaft driving cylindrical gear 67.
The bevel gear transmission mechanism comprises a driving bevel gear 69 and a driven bevel gear 60 which are meshed with each other, the driven bevel gear 60 is fixed on the output shaft 6a of the transmission case, and the driving bevel gear 69 is fixed on the last shaft 63 of the cylindrical gear reduction mechanism.
The drive bevel gear 69 and the driven bevel gear 60 are both bevel gears made of steel, such as 45# steel. The driving gear has a smaller diameter than the driven gear engaged therewith to form three pairs of reduction gear pairs, and the intermediate shaft 62 is not limited to one but may be more than one as required.
The box 6b is in an inverted L shape, the box 6b comprises a box horizontal section and a box vertical section which are fixedly arranged together, a first shaft 61 and a middle shaft 62 are arranged on the box horizontal section, and a last shaft 63 is arranged on the box vertical section.
The box body 6b comprises an upper cover 6c, a lower cover 6d and a bevel gear box body 6e, the upper cover 6c and the lower cover 6d are fixedly connected to form a box body horizontal section, and the bevel gear box body 6e is fixed on the lower cover 6d to form a box body vertical section.
As shown in fig. 2, the transmission case 6 is assembled on a mower, the mower includes an engine 1, a clutch 2, a cutter shaft 4 and a cutter blade 5, a power output shaft 11 of the engine 1 is fixedly connected with a clutch input end of the clutch 2, a head shaft 61 is connected with a clutch output end of the clutch 2 through a belt transmission mechanism, the belt transmission mechanism includes a driving pulley 3 disposed at the clutch output end, a driven pulley 64 disposed at the head shaft 61, and a transmission belt wound around the driving pulley 3 and the driven pulley 64, an upper end of the cutter shaft 4 is fixedly connected with the clutch output end of the clutch 2, and the cutter blade 5 is fixed at a lower end of the cutter shaft 4.
When mowing, the engine 1 works, the clutch 2 is in a joint state, the clutch 2 transmits the power of the engine 1 to the driving pulley 3 and the mowing shaft 4, the driving pulley 3 drives the driven pulley 64 to rotate, the driven pulley 64 drives the leading shaft 61 and the leading shaft driving cylindrical gear 65 to rotate, the leading shaft driving cylindrical gear 65 drives the intermediate shaft driven cylindrical gear 66, the second gear shaft 62 and the intermediate shaft driving cylindrical gear 67 to rotate through the intermediate shaft driven cylindrical gear 66, the intermediate shaft driving cylindrical gear 67 drives the trailing shaft 63 and the driving bevel gear 69 to rotate through the trailing shaft driven cylindrical gear 68, and the driving bevel gear 69 drives the output shaft 6a to rotate through the driven bevel gear 60, so that the mower is driven to advance at a certain speed; meanwhile, the cutter shaft 4 drives the cutter 5 to rotate, and the mowing operation is completed when the cutter 5 rotates.
In practical application, the utility model discloses a transmission case not only can be applied to the lawn mower, can also be applied to agricultural machinery such as ditching machine or rotary cultivator.
The utility model discloses a transmission case utilizes the bevel gear pair of a pair of steel material to replace the worm gear transmission pair, has solved the problem that worm gear transmission pair intensity is low, generate heat many, wear-resisting and life is short for transmission case life prolongs greatly, uses the mechanical device long service life of transmission case, and work efficiency is high.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (6)
1. A transmission case comprising: the gearbox is characterized in that a cylindrical gear reduction mechanism and a conical gear transmission mechanism which are connected are arranged in the gearbox, a head shaft of the cylindrical gear reduction mechanism is a transmission box input shaft of the transmission box, and an output shaft of the conical gear transmission mechanism is a transmission box output shaft of the transmission box; the bevel gear transmission mechanism comprises a driving bevel gear and a driven bevel gear which are meshed with each other, the driven bevel gear is fixed on the output shaft of the transmission case, and the driving bevel gear is fixed on the last shaft of the cylindrical gear reduction mechanism.
2. The gear box of claim 1, wherein the drive bevel gear and the driven bevel gear are bevel gears made of steel.
3. A transmission case according to claim 1, wherein the spur gear reduction mechanism includes:
the head shaft, the tail shaft and the intermediate shaft are positioned between the head shaft and the tail shaft and are parallel to each other;
a head shaft driving cylindrical gear is fixed on the head shaft;
the intermediate shaft is fixed with an intermediate shaft driven cylindrical gear and an intermediate shaft driving cylindrical gear, and the intermediate shaft driven cylindrical gear is meshed with the head shaft driving cylindrical gear;
and a tail shaft driven cylindrical gear is fixed on the tail shaft and is meshed with the intermediate shaft driving cylindrical gear.
4. The transmission case of claim 3, wherein the case body is in an inverted "L" shape, the case body comprises a case body horizontal section and a case body vertical section which are fixedly connected together, the head shaft and the middle shaft are arranged on the case body horizontal section, and the tail shaft is arranged on the case body vertical section; the head shaft, the tail shaft and the middle shaft are all vertically arranged.
5. The gear box of claim 4, wherein the box body comprises an upper cover, a lower cover and a bevel gear box body, the upper cover and the lower cover are fixedly connected to form the horizontal box body section, and the bevel gear box body is fixed to the lower cover to form the vertical box body section.
6. A gear box according to claim 3 wherein the primary shaft is fixedly provided with a driven pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023332743.9U CN214092898U (en) | 2020-12-30 | 2020-12-30 | Transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023332743.9U CN214092898U (en) | 2020-12-30 | 2020-12-30 | Transmission case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214092898U true CN214092898U (en) | 2021-08-31 |
Family
ID=77436785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023332743.9U Active CN214092898U (en) | 2020-12-30 | 2020-12-30 | Transmission case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214092898U (en) |
-
2020
- 2020-12-30 CN CN202023332743.9U patent/CN214092898U/en active Active
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