JPS6119558B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a drum drive device, in particular for a rope winch, comprising a planetary gear arrangement having first and second planetary gear reduction stages and arranged in the drum to be driven. Regarding. Here, the present invention relates to a rope winch (German Patent Publication No. 2304370) having a planetary gear reducer arranged inside a closed drum.
(No.). In this announced planetary gear reduction device, the reduction device occupies an important part inside the drum, and the drum is driven by the planetary arm of the second planetary gear reduction stage connected to the output shaft, and the arm connected to the output shaft. A fixed connection is made with the cover of the drum in a position opposite the drive and takes place via a second planetary gear reduction stage. Additionally, the drum is filled with oil to adequately lubricate the drum drive. Furthermore, in the known device, two sets of bearings are provided between the drum and the desired planetary gear reducer, and suitable seats must be provided in the drum for these bearings. .

This known drum drive has the disadvantage in terms of manufacturing technology that extensive machining of the drum is necessary in order to connect the output shaft accurately and to ensure seating for both bearings.

According to the inventive idea regarding the coupling between the planetary gear reducer and the drum, the object of the invention is to:
The drum drive is structurally simplified so that the drum and the planetary gear reducer can be reliably interconnected with negligible outlay and can be retrofitted into existing drums. The purpose of this is to construct a drum drive device. In this case, filling the interior of the drum with oil may have to be abandoned, since relatively large amounts of oil are required and parts that do not require lubrication are also cleaned.

Therefore, the following is proposed based on the present invention.

That is, the planetary gear reduction device is housed in a two-part sealed gear casing consisting of a bowl-shaped casing member fixed inside the drum and an exterior cover coupled to the support frame of the drum, A pot-shaped casing member is rotatably supported on the cover, the cover being provided with a center hole for the drive shaft of the first planetary gear reduction gear and both the first and second planetary gears. The internal gear of the reduction stage is coupled and fixed to the bowl-shaped casing member.

As a configuration aspect of the present invention, the second planetary gear reduction stage is disposed between the first planetary gear reduction stage and the cover, and the drive shaft carrying the sun gear of the first planetary gear reduction stage is passing through a hollow sun gear of a second planetary gear reduction stage, said second planetary gear reduction stage is connected with a planetary arm of a first planetary gear reduction stage, and said cover simultaneously passes through a second planetary gear reduction stage; It is proposed to be a planetary arm.

According to another advantageous embodiment of the invention, the inner wall of the drum at a distance from the drive end of the drum is provided with a flange-like inner ring and in the area of the cover or the second planetary gear reduction stage. It has been proposed that the pot-shaped casing part in is provided with a flange-shaped outer ring abutting said inner ring, and that the inner ring is releasably connected to the outer ring by means of bolts.

Finally, as yet another configuration aspect of the present invention,
a generally cylindrical intermediate connecting member is fixed to the cover, the intermediate connecting member being provided with a spring-loaded stop brake device on the drive shaft;
It has been proposed to also serve to secure the drive motor connected to the drive shaft.

According to the invention, the drum can be arranged on one side of the device, and the drive part, i.e. the planetary gear reducer with the drive motor, optionally already provided with a flange, can be provided on the other side, the connection of which teeth,
This can simply be done via an inner ring attached to the drum and an outer ring attached to the casing of the reduction gear. Therefore, there is no need for complicated machining of the inner wall of the drum. This is because it is not difficult to weld or otherwise fix an inner ring of a certain size to the drum. In this case, this inner ring requires special processing because it is only connected to the outer ring of the drum like two flanges, even though the drum functions to transmit rotational moment to the drum. I don't need anything. In that way, different drums and different drives can be connected in a simple way and with a simple device. However, this simple connection method is not known per se, but is the result of the construction of the reduction gear according to the invention. That is, a pot-shaped casing member is incorporated into the force flow between the reduction gear and the drum,
This is the result of the measure of connecting both of the internal gears to this bowl-shaped casing member. A rotational moment is simply supplied from the drive shaft to the first gear reduction stage, through the first gear reduction stage to the second gear reduction stage, and finally through the second gear reduction stage to the drum. The drum drive device with the two planetary gear reduction stages is characterized in that the power is not only split in the reduction gear, but also collected via the bowl-shaped gear casing. It is noteworthy that this differs from known configurations.

It is also particularly striking that it differs completely from the complex bearing of the drum in known configurations, which in this case have a conventional journal on one side of the drum and a bowl-shaped gear casing on the other side. Although a bearing is provided on the fixed cover through the drum, this bearing is a part of the planetary gear reduction gear and is not a part of the working process when machining the drum.

It is clear that a planetary gear reduction device constructed according to the invention can itself be installed in a drum, which drum was previously supported on both sides by suitable external journals. and
In the case of the present invention, a side cover of a drum having a desired journal is cut out on one side of the reduction gear, and an inner coupling ring is attached thereto, and the inner ring is attached to the reduction gear. It is possible to connect. Although this type of modification is not frequently carried out, the possibility of such application shows the technical excellence of the proposal of the present invention.

The present invention will now be described in detail with reference to the accompanying sectional views illustrating one embodiment of the invention.

Drum 7 is the drum of support frame 8.
The journal 11 fitted into the bearing 12 is also journalled on one side. The drum drive device is placed opposite this bearing 12 and inserted into the drum interior 13. This drive device consists of a planetary gear reduction device, and the planetary gear reduction device is housed in a sealed gear casing 20 divided into two parts, and includes a pot-shaped casing member 6 installed therein; A cover 10 is provided, and the cover 10 is fixed to the support frame 8. Further, a connecting member 25 is fixed to the cover 10, and furthermore, a drive motor 1, which is a hydraulic motor in this case, is fixed to the cover 10. The pot-shaped casing member 6 is a cover 1
It is rotatably supported on the 0. A corresponding bearing 26 simultaneously serves as a second bearing for the drum 7.

Regarding the main components, the illustrated rope winch comprises a drive motor 1, a spring-loaded stop brake device 2, a drive shaft 3, two planetary gear reduction stages 21, 22, and a bowl-shaped It consists of a casing part 6, a cover 10, a drum 7 and a drum frame 8, which in the case of a rope winch is designated as a winch support. First planetary gear reduction stage 21 and second planetary gear reduction stage 22
is enclosed within a bowl-shaped casing member 6 connected to the drum 7 via an outer ring 24 fixed to the bowl-shaped casing member 6 and a corresponding inner ring 23 .

The drive motor 1 is connected to the drive shaft 3 of the first planetary gear reduction device 21 via a drive shaft (not shown) located in the stop brake device 2 .

The sun gear 4, the plurality of planetary pinions 14, the planetary arms 16, and the internal gear 15 belong to the first planetary gear reduction stage. The second seated on the hollow shaft 17
The sun gear 5, the plurality of planetary pinions 19, and the internal gear 9 are included in the second planetary gear reduction stage. The internal gears 9 and 15 are connected to a bowl-shaped casing member 6.
fixedly coupled with.

The operating mode of the above rope winch is as follows. Drive shaft 3, i.e. the first
The sun gear 4 of the planetary gear reduction stage 21 is driven by the drive motor 1. The teeth of the planetary pinion 14 mesh with the teeth of the sun gear 4 and the internal gear 15. As a result, the planetary pinion 14 rotates around its own axis or in the opposite direction of rotation as the drive shaft 3 rotates. The planetary arm 16 and the sun gear 5 of the second planetary gear reduction stage 22 connected to the planetary arm 16 are
Rotation is transmitted via the bolt 18 of the planetary pinion 14.

The operation progress of the second planetary gear reduction stage 22 is as follows:
It is similar to the planetary gear reduction stage 21 of the stage. Since the planetary arm of the second planetary gear reduction stage is integral with the cover 10 and is in a fixed state, the planetary pinion 19 of the second planetary gear reduction stage 22 rotates only around its axis. At the same time, the rope drum 7 is driven via the internal gear 9. The two internal gears 15 and 9 are fixedly connected to each other in the bowl-shaped housing part 6, so that both planetary gear reduction stages 2
An equilibrium of loads 1 and 22 occurs. The bowl-shaped gear casing member 6 and the drum 7 fixedly connected to the casing member rotate in the same rotational direction as the drive motor 1.

The planetary gear reduction device is equipped with an immersion lubrication system. The oil can be changed without the rope being wrapped.

[Brief explanation of the drawing]

The accompanying drawings are cross-sectional views of one embodiment of the invention. 1... Drive motor, 2... Stop brake device, 3... Drive shaft, 4, 5... Sun gear, 6...
Casing member, 7... Drum, 8... Support frame, 9, 15... Internal gear, 10... Cover, 11... Journal shaft, 12, 2
6...Drum bearing, 14, 19...Planetary pinion, 16...Planetary arm, 18...Bolt, 21, 22...Planetary gear reduction stage, 23...Inner ring, 24...Outer ring, 25... ...Connection member.

Claims (1)

Claims: 1. A drum drive device for a rope winch, comprising a planetary gear reduction stage disposed in the drum to be driven and having a first and a second planetary gear reduction stage; The planetary gear reduction device is housed in a gear casing 20, which is connected to a bowl-shaped casing member 6 fixedly connected to the interior of the drum 7 and to a support frame 8 of the drum 7, with an intermediate connection. The bowl-shaped casing member 6 is rotatably supported on the cover 10, and the drive motor 1 for driving the casing member 6 and the outer cover 10 are provided with a member 25. Drive shaft 3 of first planetary gear reduction stage 21 connected to drive motor 1
The first planetary gear reduction stage includes a sun gear 4, a plurality of planetary pinions 14, and a planetary arm 1.
6 and an internal gear 15, the second planetary gear reduction stage consists of a second sun gear 5, a plurality of planetary pinions 19, and an internal gear 9, and the bowl-shaped casing member 6 is the driving A drum drive device characterized in that it is driven by a drive motor 1 via a shaft 3 and the first and second planetary gear reduction devices. 2 The second planetary gear reduction stage 22 is disposed between the first planetary gear reduction stage 21 and the cover 10, and the drive shaft 3 carrying the sun gear 4 of the first planetary gear reduction stage 21 is , passes through the hollow sun gear 5 of the second planetary gear reduction stage 22, and the hollow sun gear 5 of the second planetary gear reduction stage 22 is connected to the planetary arm of the first planetary gear reduction stage 21. 2. The drum drive device according to claim 1, wherein said cover 10 also serves as a planetary arm of a second planetary gear reduction stage 22. 3. The drum 7 has a flange-like inner ring on the inner wall spaced apart from the drive side end, and the cover 10 or the second planetary gear reduction stage 2
The bowl-shaped casing member 6 that falls into the pressure area of 2 is in contact with the inner ring 23, and is provided with an outer ring 24 that is removably connected to the inner ring 23 by bolts. The drum drive device according to scope 1 or 2. 4. The intermediate connecting member 25 has a substantially cylindrical shape, and the intermediate connecting member 25 is provided with a stop brake device 2 that acts on the drive shaft 3 with a spring load, and the drive shaft connected to the drive shaft 3 A drum drive device according to any one of claims 1 to 3, characterized in that it serves to fix the motor 1.