CN214003894U - Compact shell output built-in type winch lifting gear box - Google Patents
Compact shell output built-in type winch lifting gear box Download PDFInfo
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- CN214003894U CN214003894U CN202023058981.5U CN202023058981U CN214003894U CN 214003894 U CN214003894 U CN 214003894U CN 202023058981 U CN202023058981 U CN 202023058981U CN 214003894 U CN214003894 U CN 214003894U
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Abstract
The utility model relates to a speed reducer field provides interior concealed hoist lifting gear case of compact shell output. The compound planetary transmission gear train comprises two or more epicyclic gear trains and a fixed-axis gear train to form a compound planetary gear train, a transmission shaft is connected with a sun gear of the primary planetary gear train and is simultaneously meshed with the primary sun gear and the primary inner gear ring shell, and a primary planet carrier is connected with a sun gear of the intermediate planetary gear train to realize power split transmission and partial torque output. And is simultaneously meshed with the final-stage sun gear and the middle-stage inner gear ring shell. The last-stage planetary gear system is a fixed-axis gear system, the planetary carrier does not rotate, the planetary carrier is fixedly supported on the supporting seat, and the inner gear ring drives the winding drum to rotate through the flange to complete output. The integral gear box is integrated inside the winding drum, and the internal space of the winding drum is effectively utilized. And the three-stage planetary transmission improves the output torque.
Description
Technical Field
The utility model relates to a speed reducer field, concretely relates to concealed hoist lifting gear case in compact shell output.
Background
The hoisting gear box is a hoisting device for hoisting or pulling heavy objects by winding a steel wire rope on a drum, and is widely applied to the industrial fields of construction cranes, ship and deck cranes, truck cranes, freight transportation, working elevators and the like. A compact shell output built-in type hoisting gear box is a core device for providing hoisting power for a hoisting machine. Traditional hoist mechanism adopts external promotion drive mechanism, and hoisting device installs in the outside of reel promptly, and length direction structure occupation space is big, and is very inconvenient in narrow and small space installation, and drive gear easily wears out, and the reliability is not high. Heavy working conditions and harsh environments cannot be met.
Disclosure of Invention
For overcoming the defect that hoist engine input torque and volume can not compromise among the prior art, the utility model aims to provide a compact structure has big drive ratio, high bearing capacity's interior concealed hoist lifting gear case concurrently.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a compact shell output concealed winch lifting gear box comprises a winding drum supporting seat and a winding drum, wherein the winding drum is rotatably supported between supporting plates on two sides of the supporting seat, a speed reducing mechanism is installed in the winding drum and comprises an input shaft, a transmission shaft, a final-stage planetary gear train, a middle-stage planetary gear train and a primary planetary gear train which are sequentially connected, an end cover is installed on the end face of the primary planetary gear train, inner gear rings of adjacent planetary mechanisms are connected through a flange, the inner gear ring of the final-stage planetary gear train is fixedly connected with the end face of the winding drum through a flange, a planet carrier of the final-stage planetary gear train is fixed on the supporting plates through screws, the input shaft is rotatably supported on a left supporting plate of the supporting seat through a bearing seat, the transmission shaft is coaxially connected with the input shaft through a spline, and the tail end of the transmission shaft is rotatably supported on the end cover of the primary planetary gear train through a bearing; the transmission shaft is provided with a sun gear corresponding to each planetary mechanism, the sun gear of the primary planetary gear train is fixedly arranged on the transmission shaft, the sun gears of the middle-stage and final-stage planetary gear trains are rotatably supported on the transmission shaft, the sun gears of the middle-stage and final-stage planetary gear trains are double gears, and the two gears of the sun gears of the middle-stage and final-stage planetary gear trains are respectively in meshing transmission with the planetary gear of the current stage and the planetary carrier of the upper stage.
Further, a flange between the winding drum and the final-stage planetary gear train is rotatably supported by a carrier of the final-stage planetary gear train through a bearing.
Furthermore, more than one group of sealing rings are arranged on a flange between the winding drum and the final-stage planetary gear train to seal with the final-stage planetary carrier.
And axial lubricating oil grooves are formed between the middle-stage sun gear and the transmission shaft and between the last-stage sun gear and the transmission shaft.
After taking above technical scheme, the beneficial effects of the utility model are that: the compound planetary transmission gear train comprises two or more epicyclic gear trains and a fixed-axis gear train to form a compound planetary gear train, a transmission shaft is connected with a sun gear of the primary planetary gear train, a planetary gear of the primary planetary gear train is arranged on the primary planetary carrier through a roller bearing or a needle bearing and is engaged with the primary sun gear and a primary inner gear ring shell, and the primary planetary carrier is connected with the sun gear of the intermediate planetary gear train to realize power split transmission and partial torque output. Similarly, the planet wheels of the middle-stage planetary gear train are arranged on the middle-stage planet carrier through roller bearings or needle roller bearings and are simultaneously meshed with the final-stage sun gear and the middle-stage inner gear ring shell. The last-stage planetary gear system is a fixed-axis gear system, the planetary carrier does not rotate, the planetary carrier is fixedly supported on the supporting seat, and the inner gear ring drives the winding drum to rotate through the flange to complete output. The integral gear box is integrated inside the winding drum, and the internal space of the winding drum is effectively utilized. And the three-stage planetary transmission improves the output torque.
Drawings
FIG. 1 is a schematic drive diagram of a gearbox;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The following further description is made in conjunction with the accompanying drawings and examples:
as shown in the figure, this built-in hoist lifting gear case of compact shell output includes: the support input mechanism, the shell output mechanism and the compound planetary transmission gear train are three major parts.
The support input mechanism comprises an input shaft 1, an end cover 2, a conical bearing 3, an input bearing seat 4 and a support planet carrier 5. One end of an input shaft 1 is connected with a power mechanism such as a motor or a hydraulic motor and the like, receives power transmitted from a power source, the other end of the input shaft is connected with a transmission shaft 6 and transmits the power to the transmission shaft 6, a conical bearing 3 is arranged on the input shaft 1 and is arranged in an input bearing seat 5, the input bearing seat 5 is fixed on a support planet carrier 5, the support planet carrier 5 is connected with a winding drum base and is used as a support point of a winding drum to bear the tensile force of a steel rope.
The compound planetary transmission gear train comprises two epicyclic gear trains and a fixed-axis gear train, the transmission shaft 6 is connected with a sun gear 12 of the primary planetary gear train, planetary gears 10 of the primary planetary gear train are arranged on pin shafts 19 through roller bearings or needle roller bearings 18, the pin shafts 19 are uniformly distributed on the primary planetary carrier 9, and the number of the pin shafts and the planetary gears can be designed to be 3-5. The primary planet gears 10 are simultaneously in mesh with a primary sun gear 12 and a primary annulus gear housing 11, and the primary planet carrier 9 is connected with the sun gear 8 of the secondary planetary gear train. Similarly, the planet wheels 13 of the middle-stage planetary gear train are arranged on a middle-stage pin shaft 20 through roller bearings or needle roller bearings 21, the middle-stage pin shaft 20 is uniformly distributed on a middle-stage planet carrier 14, the number of the pin shafts and the planet wheels can be designed to be 3-5, and the middle-stage planet wheels 13 are simultaneously meshed with the middle-stage sun wheel 8 and the middle-stage inner gear ring shell 22. The final-stage planetary gear system is a fixed-axis gear system, the supporting planetary gear system 5 does not rotate and is fixed on a winch supporting seat through an end flange bolt hole, the intermediate-stage planetary gear system 14 is connected with a sun gear 15 of the final-stage planetary gear system, the final-stage planetary gear 17 is installed on a final-stage pin shaft 24 through a roller bearing or a needle bearing 23, the number of the final-stage pin shaft 24 is generally designed to be 4-5, the final-stage planetary gear 17 is uniformly distributed on the supporting planetary gear system 5, and the final-stage planetary gear 17 is meshed with the final-stage sun gear 15 and the final-stage inner gear ring shell 16 simultaneously. The primary annular gear shell 11 and the middle annular gear shell 22 are connected through an intermediate flange 27, the middle annular gear shell 22 is connected with the final-stage annular gear shell 16 through an intermediate flange 25, so that the final-stage annular gear shell forms a whole and is connected with an output flange 28 into a whole through a positioning pin 7, and the output flange 27 is directly connected with a winding drum to rotate and output torque.
The working principle is as follows: the input shaft 1 drives the transmission shaft 6 to drive, the sun gear 12 of the primary planetary gear train is driven to rotate, the primary planet carrier 9 of the primary planetary gear train outputs, the sun gear 8 of the middle-stage planetary gear train is meshed to drive the middle-stage planetary gear train to rotate, the planet carrier of the middle-stage planetary gear train outputs and is meshed with the sun gear 15 of the last stage to drive, the planet carrier of the last stage is fixed, therefore, the inner gear ring shell 16 of the last stage rotates to output, and the inner gear ring shell 16 of the last stage drives the winding drum to rotate through the output flange 28 to finish output.
The compact shell output built-in type winch lifting gear box adopts compound planetary transmission, reasonably utilizes internal and external meshing, divides and reunites power, and has the remarkable characteristics of compact structure, small volume, wide speed ratio range, large bearing capacity and the like.
Claims (4)
1. A compact shell output concealed winch lifting gear box comprises a winding drum supporting seat and a winding drum, wherein the winding drum is rotatably supported between supporting plates on two sides of the supporting seat, and a speed reducing mechanism is installed in the winding drum; the transmission shaft is provided with a sun gear corresponding to each planetary mechanism, the sun gear of the primary planetary gear train is fixedly arranged on the transmission shaft, the sun gears of the middle-stage planetary gear train and the final-stage planetary gear train are rotatably supported on the transmission shaft, the sun gears of the middle-stage planetary gear train and the final-stage planetary gear train are double gears, and the two gears of the sun gears of the middle-stage planetary gear train and the final-stage planetary gear train are respectively in meshing transmission with the planetary gear of the planetary gear train and the planetary carrier of the upper-stage planetary gear train.
2. The compact case output concealed winch lift gearbox of claim 1, wherein the flange between the winding drum and the final planetary gear train is rotatably supported by a bearing to the carrier of the final planetary gear train.
3. The compact case output concealed winch lift gearbox of claim 1, wherein the flange between the drum and the final planetary gear train has more than one set of sealing rings to seal with the final planetary gear train.
4. The compact hull output concealed hoist lift gearbox of claim 1, wherein an axial lubrication groove is provided between said intermediate and final sun gear and the drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023058981.5U CN214003894U (en) | 2020-12-17 | 2020-12-17 | Compact shell output built-in type winch lifting gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023058981.5U CN214003894U (en) | 2020-12-17 | 2020-12-17 | Compact shell output built-in type winch lifting gear box |
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| Publication Number | Publication Date |
|---|---|
| CN214003894U true CN214003894U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023058981.5U Active CN214003894U (en) | 2020-12-17 | 2020-12-17 | Compact shell output built-in type winch lifting gear box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340628A (en) * | 2020-12-17 | 2021-02-09 | 江苏泰隆减速机股份有限公司 | A compact shell output built-in hoisting and hoisting gearbox |
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2020
- 2020-12-17 CN CN202023058981.5U patent/CN214003894U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340628A (en) * | 2020-12-17 | 2021-02-09 | 江苏泰隆减速机股份有限公司 | A compact shell output built-in hoisting and hoisting gearbox |
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