CN215444933U - Speed reducer for crane - Google Patents
Speed reducer for crane Download PDFInfo
- Publication number
- CN215444933U CN215444933U CN202121550933.XU CN202121550933U CN215444933U CN 215444933 U CN215444933 U CN 215444933U CN 202121550933 U CN202121550933 U CN 202121550933U CN 215444933 U CN215444933 U CN 215444933U
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- output
- bearing ring
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 27
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model provides a speed reducer for a crane, which comprises a box body, wherein an input shaft, an output shaft and intermediate shafts are arranged in the box body, an input driving gear is arranged on the input shaft, an intermediate driven gear is arranged on the intermediate shafts, an output power gear is arranged on the output shaft, the two input driving gears are respectively positioned at two ends of the input shaft in the box body, the two intermediate driven gears are respectively positioned at two ends of the intermediate shafts in the box body, the intermediate driven gears are meshed with the corresponding input driving gears, the side walls of the two opposite sides of the intermediate driven gears extend to form intermediate driving gears, the two output power gears are both arranged on the output shaft, and the output power gears are meshed with the intermediate driving gears. Rational in infrastructure, excellent in use effect after this scheme of adoption.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a speed reducer for a crane.
Background
The speed reducer, which is a relatively precise machine used for the purpose of reducing the rotational speed and increasing the torque, plays a role of matching the rotational speed and transmitting the torque between the prime mover and the working machine or the actuator. The commonly used speed reducer mainly comprises a common cylindrical gear speed reducer, a worm gear speed reducer, a planetary gear speed reducer and the like, but the commonly used speed reducer can not meet the production requirement in the face of increasingly diversified transmission forms and power requirements, and the exposure problem is more obvious. Although the structure of the common cylindrical gear speed reducer is simple, the contact ratio is not high, the transmission requirement is often met by adopting the modification of the gear by the displacement, and the common cylindrical gear speed reducer with a large transmission ratio has large volume and heavy weight and is not beneficial to the improvement of the power performance; the traditional speed reducer adopts a single-gear structure, and the load of the speed reducer is low, so that the speed reducer is easy to damage when used for a crane, and the service life of the speed reducer is short.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a speed reducer for a crane, which is reasonable in structure and good in using effect.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a speed reducer for a crane comprises a box body, wherein an input shaft, an output shaft and intermediate shafts are arranged in the box body, an input driving gear is arranged on the input shaft, an intermediate driven gear is arranged on the intermediate shafts, an output power gear is arranged on the output shaft, the two input driving gears are respectively positioned at two ends of the input shaft in the box body, the two intermediate driven gears are respectively positioned at two ends of the intermediate shafts in the box body, the intermediate driven gears are meshed with the corresponding input driving gears, the side walls of one opposite sides of the two intermediate driven gears extend to form intermediate driving gears, the two output power gears are both arranged on the output shaft, and the output power gears are meshed with the intermediate driving gears; the teeth on the input driving gear, the middle driven gear, the middle driving gear and the output power gear are all helical teeth.
The box middle part lateral wall on be equipped with inside and outside middle shaft hole that runs through, the downthehole cover of middle shaft is equipped with middle bearing ring, middle shaft tip suit is in corresponding middle bearing ring, be equipped with the input shaft hole on the box of one of them side of middle shaft hole, the input bearing ring is equipped with to the input shaft hole endotheca, the input shaft tip suit is in corresponding input bearing ring, wherein one end of input shaft passes input bearing ring and forms the input, be equipped with the output shaft hole on the box of middle shaft hole opposite side, the downthehole cover of output shaft is equipped with the output bearing ring, the suit of output shaft tip is in corresponding output bearing ring, one of them end of output shaft passes the output bearing ring and forms the output.
And the side walls of the input driving gear, the middle driven gear and the middle driving gear are provided with through weight reducing holes.
After the scheme is adopted, the directions of the helical teeth on the gears of the same shaft are opposite, all the gears are meshed in an oblique insertion mode, so that transmission transition is more stable, the performance is stronger, all the gears adopt a double-gear structure, the load performance of the speed reducer is greatly improved, the bearing ring is additionally arranged at the position of the shaft and the box body, the shaft is not in contact with the box body, the wear rate of the shaft is effectively reduced, the service life of the speed reducer is greatly prolonged, and the structure is reasonable and the using effect is good after the scheme is adopted.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The utility model will be further described with reference to the accompanying drawings, in which preferred embodiments of the utility model are: referring to fig. 1, the speed reducer for the crane according to this embodiment includes a case 1, an input shaft 2, an output shaft 3, and an intermediate shaft 4 are installed in the case 1, wherein an input driving gear 5 is installed on the input shaft 2, an intermediate driven gear 9 is installed on the intermediate shaft 4, an output power gear 10 is installed on the output shaft 3, the two input driving gears 5 are respectively located at two ends of the input shaft 2 in the case 1, the two intermediate driven gears 9 are respectively located at two ends of the intermediate shaft 4 in the case 1, the intermediate driven gear 9 is engaged with the corresponding input driving gear 5, an intermediate driving gear 11 is formed by extending a side wall of one of the two intermediate driven gears 9 opposite to each other, the two output power gears 10 are both installed on the output shaft 3, and the output power gear 10 is engaged with the intermediate driving gear 11; the teeth on the input driving gear 5, the intermediate driven gear 9, the intermediate driving gear 11 and the output power gear 10 are all helical teeth. The side walls of the input driving gear 5, the middle driven gear 9 and the middle driving gear 11 are provided with oppositely-penetrating weight reducing holes 12.
The middle shaft hole that runs through inside and outside is arranged on the lateral wall of the middle part of the box body 1, the middle shaft hole is internally sleeved with a middle bearing ring 6, the end part of the middle shaft 4 is sleeved in the corresponding middle bearing ring 6, the box body 1 on one side of the middle shaft hole is provided with an input shaft hole, the input shaft hole is internally sleeved with an input bearing ring 7, the end part of the input shaft 2 is sleeved in the corresponding input bearing ring 7, one end of the input shaft 2 penetrates through the input bearing ring 7 to form an input end, the box body 1 on the other side of the middle shaft hole is provided with an output shaft hole, the output shaft hole is internally sleeved with an output shaft bearing ring 8, the end part of the output shaft 3 is sleeved in the corresponding output bearing ring 8, and one end of the output shaft 3 penetrates through the output bearing ring 8 to form an output end.
After adopting above-mentioned scheme, the skewed tooth opposite direction on the gear of same strip axle, all gears adopt the bayonet meshing of slant, make the transmission transition more steady, the performance is stronger, all gears adopt double gear structure, greatly increased speed reducer load performance, axle and box department increase the bearing ring, make axle and box contactless no longer, effectively reduced the wear rate of axle, thereby prolong the life of speed reducer greatly, rational in infrastructure after adopting this embodiment, excellent in use effect.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the changes in the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a speed reducer for hoist, it is including box (1), installs input shaft (2), output shaft (3), jackshaft (4) in box (1), wherein, installs input driving gear (5) on input shaft (2), installs middle driven gear (9) on jackshaft (4), installs output power gear (10), its characterized in that on output shaft (3): the two input driving gears (5) are respectively positioned at two ends of an input shaft (2) in the box body (1), the two middle driven gears (9) are respectively positioned at two ends of an intermediate shaft (4) in the box body (1), the middle driven gears (9) are meshed with the corresponding input driving gears (5), the side walls of one opposite sides of the two middle driven gears (9) extend to form middle driving gears (11), the two output power gears (10) are respectively arranged on the output shaft (3), and the output power gears (10) are meshed with the middle driving gears (11); the teeth on the input driving gear (5), the middle driven gear (9), the middle driving gear (11) and the output power gear (10) are all helical teeth.
2. A reducer for a crane according to claim 1, wherein: be equipped with the middle shaft hole that runs through inside and outside on the lateral wall of box (1) middle part, the downthehole cover of jackshaft is equipped with bearing ring (6) in the middle of the jackshaft, jackshaft (4) tip suit is in corresponding bearing ring in the middle of the jackshaft (6), be equipped with the input shaft hole on the box (1) of middle shaft hole one side wherein, input bearing ring (7) are equipped with to the input shaft hole endotheca, input shaft (2) tip suit is in corresponding input bearing ring (7), input shaft (2) wherein one end is passed input bearing ring (7) and is formed the input, be equipped with the output shaft hole on box (1) of middle shaft hole opposite side, the downthehole cover of output shaft is equipped with output bearing ring (8), output shaft (3) tip suit is in corresponding output bearing ring (8), output shaft (3) wherein one end is passed output bearing ring (8) and is formed the output.
3. A reducer for a crane according to claim 1, wherein: the side walls of the input driving gear (5), the middle driven gear (9) and the middle driving gear (11) are provided with oppositely-penetrating weight reducing holes (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121550933.XU CN215444933U (en) | 2021-07-09 | 2021-07-09 | Speed reducer for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121550933.XU CN215444933U (en) | 2021-07-09 | 2021-07-09 | Speed reducer for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215444933U true CN215444933U (en) | 2022-01-07 |
Family
ID=79715478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121550933.XU Expired - Fee Related CN215444933U (en) | 2021-07-09 | 2021-07-09 | Speed reducer for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215444933U (en) |
-
2021
- 2021-07-09 CN CN202121550933.XU patent/CN215444933U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220107 |