CN218965304U - Detachable planetary gear bearing inner ring device - Google Patents

Abstract

The utility model provides a detachable planetary gear bearing inner ring device, and relates to the technical field of wind power gearboxes. The inner ring device of the detachable planet wheel bearing comprises a planet wheel, two cylindrical roller bearings are arranged inside the planet wheel, a distance ring is arranged inside the planet wheel, an adjusting ring is arranged inside the distance ring, a clamp spring is arranged inside the planet wheel, a support is arranged on one side of the planet wheel, and a plurality of lifting claws are arranged inside the support. According to the detachable planetary wheel bearing inner ring device, the planetary wheel inner ring is put in through the device, the set screw is loosened after positioning, and the wrench is rotated reversely, so that the lifting claw descends, and the inner hole is released. The device can be suitable for the disassembly of the inner rings of the planetary gears with different inner hole sizes by adjusting the lifting claw, has certain universality and is convenient to operate.

Description

Detachable planetary gear bearing inner ring device

Technical Field

The utility model relates to a dismounting device, in particular to a dismountable planet wheel bearing inner ring device, and belongs to the technical field of wind power gearboxes.

Background

The gearbox in a wind generating set is an important mechanical component, and the main function of the gearbox is to transmit power generated by a wind wheel under the action of wind power to a generator and enable the generator to obtain corresponding rotating speed. The rotation speed of the wind wheel is very low and can not reach the rotation speed required by the power generation of the generator, and the rotation speed is realized through the speed increasing function of a gear pair of the gear box, so the gear box is also called a speed increasing box. According to the overall arrangement requirement of the unit, sometimes a transmission shaft (commonly called a large shaft) directly connected with a wind wheel hub is integrated with a gear box, and the large shaft and the gear box are respectively arranged, and a structure of expansion sleeve devices or coupling joints is used for connecting the large shaft and the gear box. In order to increase the braking capacity of the unit, a braking device is often arranged at the input end or the output end of the gear box, and the unit transmission system is jointly braked by matching with a blade tip braking (fixed pitch wind wheel) or a variable pitch braking device.

In order to ensure that the planetary gear bearing has certain axial play during normal operation, and prevent the roller from heating and blocking caused by the temperature rise of the gear box, a pair of cylindrical roller bearing inner rings are directly added with an adjusting ring, the cylindrical bearing, a clamp spring, a distance ring and the adjusting ring are preloaded into the planetary gear during assembly, the axial movement of the initial planetary gear is measured, and the wear allowance of the adjusting ring is determined.

Because bearing and planet wheel hole interference fit, the bearing is difficult to take out again after removing the outer lane, generally takes out the adjusting ring through tearing the bearing inner race open, because the bearing inner race hole is comparatively smooth, and the limited unable fulcrum of finding hardly takes out the inner race in space, influences assembly efficiency and has potential risk.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to solve the problems that the inner ring of the detachable planetary wheel bearing is difficult to take out after the outer ring of the bearing is assembled and removed due to interference fit between the bearing and the inner hole of the planetary wheel, and the inner ring of the bearing is difficult to take out due to the fact that the inner hole of the inner ring of the bearing is smooth and limited in space, the fulcrum cannot be found, the assembly efficiency is affected, and the potential risk is caused.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a dismantled and assembled planet wheel bearing inner circle device, includes the planet wheel, the inside two cylindrical roller bearings that are provided with of planet wheel, planet wheel internally mounted has the distance ring, the inside adjusting ring that is provided with of distance ring, planet wheel internally mounted has the jump ring, planet wheel one side is provided with the support, the support is inside to be provided with a plurality of liter and contracts the claw.

Preferably, the number of the lifting claws is four, and the four lifting claws are distributed in the support in an annular array.

Preferably, the support is assembled and positioned with the lifting claw through the step groove, the lifting claw is installed on the support, and the lifting claw and the support are assembled and positioned through the step groove, so that the lifting claw can only move along the diameter direction.

Preferably, the disc is mounted inside the support, and a bearing is mounted between the support and the disc to ensure that the disc can be centered by the bearing.

Preferably, the disc is in meshed connection with the lifting claw, the lifting claw and the bearing end face are both Archimedes spiral grooves, the rotation directions of the lifting claw and the bearing end face are opposite to each other, and the disc is moved to enable the disc and the lifting claw to enter into meshed connection.

Preferably, a pressing plate is arranged on one side of the support, and one end of the disc is fixedly connected with a wrench. The disc is rotated by a wrench, the lifting and shrinking claw is stretched simultaneously until the lifting and shrinking claw is tightly attached to the inner hole of the planet wheel,

preferably, a plurality of set screws are connected with the inner threads of the support, the set screws correspond to the discs, the set screws are screwed to limit the discs, the discs are prevented from rotating, and the inner rings of the planetary wheel bearings are integrally pulled out through lifting threads on the end faces of the discs.

The utility model provides a detachable planetary wheel bearing inner ring device, which has the following beneficial effects:

1. this dismantled and assembled planet wheel bearing inner circle device through installing the claw that contracts that rises on the support, rises and contracts claw and support and pass through step groove assembly location, ensures that the claw that contracts that rises can only be along the diameter direction removal, and the disk and bearing of assembling, ensure that the disk can be through the bearing centering, remove the disk and get into the meshing with the claw that contracts, the disk is archimedes helicla flute with the claw terminal surface that contracts, the spiral is mutual opposite, the fixed disc position of assembly clamp plate, rotatory disk through the spanner drives a plurality of claw that contracts and stretches simultaneously until the claw that contracts pastes tight planet wheel hole, screw up set screw, spacing the disk, ensure can not rotate.

2. According to the detachable planet wheel bearing inner ring device, the planet wheel inner ring is pulled out through the whole lifting screw on the end face of the disc, the adjusting ring is taken out, the adjusting ring is assembled in place after being matched and ground, the planet wheel inner ring is put in through the device, the set screw is loosened after positioning, the wrench is rotated reversely, the lifting claw is lowered, and the inner hole is released. The device can be suitable for the disassembly of planetary gear inner rings with different inner hole sizes through adjusting the lifting claw, has certain universality and is convenient to operate, the planetary gear bearing inner ring can be conveniently taken out after the planetary gear bearing and the inner ring adjusting ring are assembled, the adjusting ring is taken out for match grinding, the working efficiency is improved, the manual disassembly risk is reduced, and the device can realize the disassembly and the assembly of bearings with different inner ring diameters and can meet the use requirements of different size conditions.

Drawings

FIG. 1 is an overall side cross-sectional view of the present utility model;

FIG. 2 is a side cross-sectional view of the mount of the present utility model;

FIG. 3 is a schematic view of the structure of the lifting pawl of the present utility model;

fig. 4 is a schematic structural view of the disc of the present utility model.

In the figure: 1. a planet wheel; 2. cylindrical roller bearings; 3. a distance ring; 4. clamping springs; 5. an adjusting ring; 6. a lifting claw; 7. a support; 8. a bearing; 9. a pressing plate; 10. a set screw; 11. a wrench; 12. a disk.

Detailed Description

The embodiment of the utility model provides a detachable planet wheel bearing inner ring device.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the planetary gear transmission device comprises a planetary gear 1, two cylindrical roller bearings 2 are arranged in the planetary gear 1, a distance ring 3 is arranged in the planetary gear 1, an adjusting ring 5 is arranged in the distance ring 3, a clamp spring 4 is arranged in the planetary gear 1, a support 7 is arranged on one side of the planetary gear 1, a plurality of lifting and shrinking claws 6 are arranged in the support 7, the four lifting and shrinking claws 6 are distributed in an annular array in the support 7, the support 7 is assembled and positioned with the lifting and shrinking claws 6 through stepped grooves, the lifting and shrinking claws 6 are uniformly distributed around the circumference direction, only one part is drawn in the drawing, the lifting and shrinking claws 6 and the support 7 are assembled and positioned through the stepped grooves, the lifting and shrinking claws 6 can only move along the diameter direction, a disc 12 is arranged in the support 7, a bearing 8 is arranged between the support 7 and the disc 12, the disc 12 can be centered through the bearing 8, the disc 12 is meshed with the lifting and shrinking claws 6, the end faces of the bearing 8 are all archimedes spiral grooves, the rotating directions of the lifting and shrinking claws 6 are opposite to each other, and the disc 12 is meshed with the disc 6, one end of the disc is fixedly connected with the disc 11, and one end of the disc 11 is fixedly connected with the disc 11, and one end of the disc is meshed with the disc is installed. The disc 12 is rotated through the wrench 11, the lifting claw 6 stretches simultaneously until the lifting claw 6 is tightly attached to the inner hole of the planet wheel 1, the support 7 is internally connected with a plurality of set screws 10 in a threaded mode, the set screws 10 are corresponding to the disc 12, the set screws 10 are screwed to limit the disc 12, the disc 12 is guaranteed not to rotate, and the inner ring of the planet wheel 1 is pulled out through the whole lifting thread on the end face of the disc 12.

Specifically, the planet wheel 1 is internally provided with two cylindrical roller bearings 2, the planet wheel 1 is internally provided with a distance ring 3, the distance ring 3 is internally provided with an adjusting ring 5, the planet wheel 1 is internally provided with a clamp spring 4, during assembly, the cylindrical roller bearings 2, the clamp spring 4, the distance ring 3 and the adjusting ring 5 are preloaded into the planet wheel 1, the axial float of the planet wheel 1 is measured, the wear allowance of the adjusting ring 5 is determined, and after the initial axial float of the initial planet wheel 1 is measured by assembling the planet wheel 1, the adjusting ring 5, the clamp spring 4, the cylindrical roller bearings 2 and the distance ring 3, the clamp spring 4 on the end face of the cylindrical roller bearing 2 is taken out for the disassembly of the inner ring. The lifting and shrinking claws 6 are uniformly distributed around in the circumferential direction, only one part is drawn and installed on the support 7, the lifting and shrinking claws 6 and the support 7 are assembled and positioned through the step grooves, the lifting and shrinking claws 6 can only move along the diameter direction, the support 7 is internally provided with the disc 12, the bearing 8 is installed between the support 7 and the disc 12, the disc 12 and the bearing 8 are assembled, the disc 12 can be ensured to be centered through the bearing 8, the disc 12 and the lifting and shrinking claws 6 are moved into engagement through the moving disc 12, the end faces of the disc 12 and the lifting and shrinking claws 6 are Archimedes spiral grooves, the rotation directions are opposite to each other, the position of the disc 12 is fixed through the assembling pressing plate 9, the disc 12 and the lifting and shrinking claws 6 are engaged, the pressing plate 9 is installed on one side of the support 7, one end of the disc 12 is fixedly connected with the wrench 11, the disc 12 is rotated through the wrench 11, the plurality of lifting and shrinking claws 6 are driven to stretch simultaneously until the inner hole of the planet wheel 1 is tightly fastened, the set screw 10 is screwed, the disc 12 is limited, the whole body is pulled out through the lifting and the end faces of the disc 12, the lifting and shrinking screw is not rotated, the inner ring 1 is pulled out through the lifting and the set screw, the set screw is reversely rotated after the set 1 is opened through the set screw, the set screw is opened, and the set screw is reversely rotated, and the set and is released after the set screw is rotated, and the inner hole is opened. The device can be suitable for disassembling inner rings of planetary gears 1 with different inner hole sizes by adjusting the lifting claw 6, has certain universality and is convenient to operate. The planetary gear bearing inner ring can be conveniently taken out after the planetary gear bearing and the inner ring adjusting ring are assembled, the adjusting ring is taken out for match grinding, the working efficiency is improved, the manual disassembly and assembly risk is reduced, the device can realize the disassembly and assembly of bearings with different inner ring diameters, and the use of different size conditions can be met.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a dismantled and assembled planet wheel bearing inner circle device, includes planet wheel (1), its characterized in that: planet wheel (1) inside is provided with two cylindrical roller bearings (2), planet wheel (1) internally mounted has distance ring (3), distance ring (3) inside is provided with adjusting ring (5), planet wheel (1) internally mounted has jump ring (4), planet wheel (1) one side is provided with support (7), support (7) inside is provided with a plurality of claw (6) that shrink that rise.

2. A removable planet-bearing inner race apparatus as set forth in claim 1 wherein: the number of the lifting claws (6) is four, and the four lifting claws (6) are distributed in the support (7) in a ring-shaped array.

3. A removable planet-bearing inner race apparatus as set forth in claim 1 wherein: the support (7) is assembled and positioned with the lifting claw (6) through the step groove.

4. A removable planet-bearing inner race apparatus as set forth in claim 1 wherein: the support (7) is internally provided with a disc (12), and a bearing (8) is arranged between the support (7) and the disc (12).

5. A removable planet-bearing inner race apparatus as set forth in claim 4 wherein: the disc (12) is meshed with the lifting claw (6), the end faces of the lifting claw (6) and the bearing (8) are Archimedes spiral grooves, and the rotation directions of the lifting claw and the bearing are opposite.

6. A removable planet-bearing inner race apparatus as set forth in claim 5 wherein: one side of the support (7) is provided with a pressing plate (9), and one end of the disc (12) is fixedly connected with a wrench (11).

7. A removable planet-bearing inner race apparatus as set forth in claim 6 wherein: the support (7) is internally connected with a plurality of set screws (10) in a threaded manner, and the set screws (10) correspond to the discs (12).

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