CN215634744U - Planetary gear reducer for crane - Google Patents
Planetary gear reducer for crane Download PDFInfo
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- CN215634744U CN215634744U CN202121758930.5U CN202121758930U CN215634744U CN 215634744 U CN215634744 U CN 215634744U CN 202121758930 U CN202121758930 U CN 202121758930U CN 215634744 U CN215634744 U CN 215634744U
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- planetary gear
- shaft
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- housing
- oil storage
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Abstract
The utility model discloses a planetary gear speed reducer for a crane, which comprises a front cover shell and a rear cover shell, wherein the end parts of the front cover shell and the rear cover shell are fixed through bolts, the side wall of the end part of the front cover shell is provided with a first shaft hole, a main shaft is rotatably connected in the first shaft hole through a bearing, the end part of the main shaft is fixedly connected with a planet carrier, the side wall of the planet carrier is fixedly connected with a plurality of cross shafts distributed in an annular mode, the end parts of the cross shafts are all in key connection with planetary gears, the side wall of the end part of the cross shaft is fixedly connected with a support shaft, the end part of the support shaft is rotatably connected with a round head shaft seat through a bearing, and the side wall of the round head shaft seat is fixedly connected with the inner wall of the rear cover shell. The utility model relates to a planetary gear reducer for a crane, which has better stability in the using process, further reduces the vibration of each rotating shaft of the reducer in the using process, and is convenient for workers to add lubricating oil in the using process.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a planetary gear speed reducer for a crane.
Background
The planetary reducer has the advantages of small volume, high transmission rate, wide reduction range, high precision and the like, and is widely applied to a transmission system of a crane. The function of the device is mainly used for reducing the rotating speed, increasing the torque and reducing the rotational inertia ratio of the load/the motor on the premise of ensuring the precision transmission.
The prior planet gear speed reducer for the crane has the following defects in many cases: the meshing work of each gear in the planetary gear is more frequent, so can produce more frictional motion, and long-term meshing work in the past will make each pivot shake, and then influence the work of speed reducer, to sum up, the existing planet gear speed reducer for hoist still can not agree with the actual need well mostly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a planetary gear reducer for a crane.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a planetary gear reducer for a crane comprises a front cover shell and a rear cover shell, wherein the end parts of the front cover shell and the rear cover shell are fixed through bolts, the side wall of the end part of the front cover shell is provided with a first shaft hole, a main shaft is rotatably connected in the first shaft hole through a bearing, the end part of the main shaft is fixedly connected with a planet carrier, the side wall of the planet carrier is fixedly connected with a plurality of cross shafts which are distributed annularly, the end parts of the cross shafts are all in key connection with planet gears, the side wall of the end part of the transverse shaft is fixedly connected with a supporting shaft, the end part of the supporting shaft is rotatably connected with a round head shaft seat through a bearing, the side wall of the round head shaft seat is contacted with the inner wall of the rear housing, the end part side wall of the rear housing is provided with a second axial hole which is connected with an output shaft through a bearing in a rotating way, one end key of the output shaft is connected with a sun gear, the sun gear is meshed with each planetary gear, a gear ring is arranged in the rear housing, and the planetary gears are meshed with the inner teeth of the gear ring.
Furthermore, the top of the rear cover shell is provided with a pipe hole, the top of the gear ring is provided with an oil filling hole, an oil filling pipe is welded in the pipe hole, the side wall of the oil filling pipe is provided with an oil inlet hole, and an oil inlet pipe is welded in the oil inlet hole.
Furthermore, an oil storage shell is welded at the top of the rear housing, a fixing hole is formed in the side wall of the end of the oil storage shell, and the end of the oil inlet pipe is welded in the fixing hole.
Furthermore, the outer walls of the two sides of the oil storage shell are respectively fixed with a metal cover and an electric heating tube through bolts, and the electric heating tubes are respectively positioned in the metal cover.
Furthermore, a round hole is formed in the other end side of the oil storage shell, a round pipe is welded in the round hole, a threaded ejector rod is inserted into the round pipe in a threaded mode, the end portion of the threaded ejector rod is rotatably connected with a piston head through a bearing, and four side walls of the piston head are respectively in contact with four side walls of the oil storage shell.
Furthermore, a bar-shaped hole is formed in the top of the oil storage shell, a transparent strip is bonded in the bar-shaped hole, a scale bar is bonded on the top of the oil storage shell, and the scale bar is located close to the transparent strip.
Furthermore, a plurality of supporting legs are welded on the outer walls of the two sides of the front housing and the outer wall of the two sides of the rear housing, which are close to the bottom.
The utility model has the beneficial effects that:
1. through setting up back shaft and button head axle bed, at the in-process of speed reducer work, the back shaft provides the support for the motion of cross axle, and then guarantees the stability of cross axle, reduces the shake when cross axle rotates.
2. Through setting up oil storage shell, screw thread ejector pin and adding oil pipe, when using, rotatable screw thread ejector pin, the screw thread ejector pin is rotated the limit and is promoted the piston head and remove, and then pushes the lubricating oil in the oil storage shell to ring gear and planetary gear department, through the transmission back between the gear, realizes lubricated purpose.
3. Through setting up the electrothermal tube, when adding lubricating oil under the colder condition of weather, usable electrothermal tube heats the oil storage shell, and then melts lubricating oil.
Drawings
Fig. 1 is a schematic perspective view of a planetary gear reducer for a crane according to embodiment 1 of the present invention;
fig. 2 is a schematic front sectional view of a planetary gear reducer for a crane according to embodiment 1 of the present invention;
fig. 3 is a schematic partial perspective view of an embodiment 2 of a planetary gear reducer for a crane according to the present invention.
In the figure: 1-supporting foot, 2-main shaft, 3-front cover shell, 4-oil filling pipe, 5-oil inlet pipe, 6-oil storage shell, 7-scale bar, 8-threaded ejector rod, 9-transparent bar, 10-rear cover shell, 12-round head shaft seat, 13-sun gear, 14-output shaft, 15-supporting shaft, 16-planetary gear, 17-round pipe, 18-piston head, 19-gear ring, 20-planet carrier, 21-cross shaft and 22-metal cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-2, a planetary gear reducer for a crane comprises a front housing 3 and a rear housing 10, the ends of the front housing 3 and the rear housing 10 are fixed by bolts, a first shaft hole is formed in the side wall of the end of the front housing 3, a main shaft 2 is rotatably connected in the first shaft hole through a bearing, a planet carrier 20 is welded at the end of the main shaft 2, a plurality of cross shafts 21 distributed in an annular shape are welded at the side wall of the planet carrier 20, planetary gears 16 are connected at the ends of the cross shafts 21 in a key connection manner, a support shaft 15 is welded at the side wall of the end of the cross shaft 21, a round head shaft seat 12 is rotatably connected at the end of the support shaft 15 through a bearing, the side wall of the round head shaft seat 12 is contacted with the inner wall of the rear housing 10, in the working process of the reducer, the support shaft 15 provides support for the movement of the cross shaft 21, so as to ensure the stability of the cross shaft 21, an output shaft 14 is rotatably connected in the second shaft hole through a bearing at the side wall of the end of the rear housing 10, one end of the output shaft 14 is keyed with a sun gear 13, the sun gear 13 is meshed with each planetary gear 16, a gear ring 19 is arranged in the rear housing 10, and the planetary gears 16 are meshed with the internal teeth of the gear ring 19.
In the utility model, the top of the rear housing 10 is provided with a pipe hole, the top of the gear ring 19 is provided with an oil filling hole, an oil filling pipe 4 is welded in the pipe hole, the side wall of the oil filling pipe 4 is provided with an oil inlet hole, and an oil inlet pipe 5 is welded in the oil inlet hole.
Wherein, the top of the rear housing 10 is welded with the oil storage shell 6, the side wall of the end part of the oil storage shell 6 is provided with a fixing hole, and the end part of the oil inlet pipe 5 is welded in the fixing hole.
The other end side of the oil storage shell 6 is provided with a round hole, a round pipe 17 is welded in the round hole, a threaded ejector rod 8 is inserted in the round pipe 17 in a threaded mode, the end portion of the threaded ejector rod 8 is rotatably connected with a piston head 18 through a bearing, four side walls of the piston head 18 are respectively in contact with four side walls of the oil storage shell 6, the threaded ejector rod 8 can be rotated, the piston head 18 is pushed to move while the threaded ejector rod 8 rotates, then lubricating oil in the oil storage shell 6 is pushed into a gear ring 19 and a planetary gear 16, and the purpose of lubrication is achieved after transmission between gears.
Wherein, the top of oil storage shell 6 is opened there is the bar hole, and the downthehole transparent stripe 9 that bonds of bar, and the top of oil storage shell 6 bonds and has scale bar 7, and scale bar 7 is located the position that is close to transparent stripe 9.
Wherein, a plurality of supporting legs 1 are welded on the outer walls of the two sides of the front housing 3 and the rear housing 10 near the bottom.
The working principle is as follows: in the working process of the speed reducer, the support shaft 15 provides support for the movement of the transverse shaft 21, so that the stability of the transverse shaft 21 is ensured, and the shaking of the transverse shaft 21 during rotation is reduced.
Example 2
Referring to fig. 3, a planetary gear reducer for a crane, which is different from embodiment 1 mainly in that, in this embodiment, a metal cover 22 and an electric heating tube are fixed to outer walls of both sides of an oil storage shell 6 through bolts, and the electric heating tube is located in the metal cover 22.
The working principle is as follows: when the oil storage shell is used, when lubricating oil is added in cold weather, the electric heating pipe can be used for heating the oil storage shell, and then the lubricating oil is melted.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
Claims (7)
1. The utility model provides a planetary gear reducer for crane, includes preceding housing (3) and back housing (10), the tip of preceding housing (3) and back housing (10) passes through the bolt fastening, its characterized in that, the tip lateral wall of preceding housing (3) opens has the primary shaft hole, is connected with main shaft (2) through the bearing rotation in the primary shaft hole, and the tip fixedly connected with planet carrier (20) of main shaft (2), the lateral wall fixedly connected with cross axle (21) of a plurality of annular distributions of planet carrier (20), the equal key-type connection of tip of cross axle (21) has planetary gear (16), the tip lateral wall fixedly connected with back shaft (15) of cross axle (21), the tip of back shaft (15) is connected with button head axle bed (12) through the bearing rotation, the lateral wall of button head axle bed (12) and the inner wall contact of back housing (10), the tip lateral wall of back housing (10) is opened and is connected with output shaft (14) through the bearing rotation in the secondary shaft hole, one end key of the output shaft (14) is connected with a sun gear (13), the sun gear (13) is meshed with each planetary gear (16), a gear ring (19) is arranged in the rear housing (10), and the planetary gears (16) are meshed with the inner teeth of the gear ring (19).
2. A planetary gear reducer for cranes, according to claim 1, characterized in that the top of the rear housing (10) is provided with a pipe hole, the top of the ring gear (19) is provided with an oil filling hole, an oil filling pipe (4) is welded in the pipe hole, the side wall of the oil filling pipe (4) is provided with an oil inlet, and an oil inlet (5) is welded in the oil inlet.
3. A planetary gear reducer for cranes according to claim 2, wherein the oil storage casing (6) is welded to the top of the rear housing (10), the side wall of the end of the oil storage casing (6) is provided with a fixing hole, and the end of the oil inlet pipe (5) is welded in the fixing hole.
4. The planetary gear reducer for cranes according to claim 3, wherein the outer walls of both sides of the oil storage shell (6) are fixed with a metal cover (22) and electric heating tubes through bolts, and the electric heating tubes are respectively positioned in the metal cover (22).
5. A planetary gear reducer for cranes according to claim 3 or 4, characterized in that the other end of the oil storage shell (6) is provided with a round hole, a round tube (17) is welded in the round hole, a threaded mandril (8) is inserted in the round tube (17) through internal threads, the end of the threaded mandril (8) is rotatably connected with a piston head (18) through a bearing, and the four side walls of the piston head (18) are respectively contacted with the four side walls of the oil storage shell (6).
6. A planetary gear reducer for cranes according to claim 5, characterized in that the top of the oil storage casing (6) is provided with a bar-shaped hole, a transparent bar (9) is bonded in the bar-shaped hole, a scale bar (7) is bonded on the top of the oil storage casing (6), and the scale bar (7) is positioned close to the transparent bar (9).
7. A planetary gear reducer for cranes according to claim 6, characterized in that a plurality of support legs (1) are welded to the outer walls of both sides of the front housing (3) and the rear housing (10) near the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121758930.5U CN215634744U (en) | 2021-07-30 | 2021-07-30 | Planetary gear reducer for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121758930.5U CN215634744U (en) | 2021-07-30 | 2021-07-30 | Planetary gear reducer for crane |
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| Publication Number | Publication Date |
|---|---|
| CN215634744U true CN215634744U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202121758930.5U Active CN215634744U (en) | 2021-07-30 | 2021-07-30 | Planetary gear reducer for crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117366216A (en) * | 2023-12-07 | 2024-01-09 | 常州市曼多林精密机械科技股份有限公司 | Planetary reducer gear lubrication mechanism |
-
2021
- 2021-07-30 CN CN202121758930.5U patent/CN215634744U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117366216A (en) * | 2023-12-07 | 2024-01-09 | 常州市曼多林精密机械科技股份有限公司 | Planetary reducer gear lubrication mechanism |
| CN117366216B (en) * | 2023-12-07 | 2024-03-22 | 常州市曼多林精密机械科技股份有限公司 | Planetary reducer gear lubrication mechanism |
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