On-tower rail disengaging device for gearbox rear box body assembly of generator set

Abstract

The utility model relates to the technical field of generator equipment, and discloses a gear box rear box body assembly on-tower track disengaging device of a generator set, which comprises a cabin bottom plate, a gear ring, a torque arm and a rear box body assembly, the rear side of the gear ring is connected with the rear box body assembly, the front side of the gear ring is connected with the torque arm, and the cabin bottom plate is provided with a disengaging device. After the connection between the gear ring and the rear box body is removed, the lifting lugs on the two sides of the rear box body are pulled through the jack and the chain block to enable the rear box body assembly of the gear box to be axially separated from the gear ring, and in the process, the bearing of the separated rear box body assembly is supported on a cabin low plate through the separating devices on the two sides. And after the sun gear and the planet gear are disengaged and a certain axial gap is reserved, the rear box body assembly is fixed at the disengagement position through a chain block and a tool bolt, so that a worker can conveniently and quickly maintain the structure and the gear ring in the rear box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to generator equipment technical field more particularly, relate to the gear box rear box body subassembly tower track of generator set disconnecting device. BACKGROUND

[0002] In the gear box of 2MW wind turbine generator set, the planet carrier lower wind direction bearing often appears damage fault in the operation process. Due to the planet carrier position limitation, leading to unable to replace without opening the box.

[0003] Under the current situation, if the planet carrier lower wind direction bearing needs to be replaced, only the gear box tower maintenance can be carried out to replace and maintain, and such maintenance scheme has long response time, high operation and maintenance cost, great safety risk, and the construction period is greatly affected by weather and road conditions of the wind farm. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in the above background art, the utility model provides a gear box rear box body subassembly tower track disconnecting device of generator set.

[0005] The gear box rear box body subassembly tower track disconnecting device of generator set provided by the utility model adopts the following technical scheme:

[0006] The gear box rear box body subassembly tower track disconnecting device of generator set comprises a cabin bottom plate, a gear ring, a torsion arm, and a rear box body subassembly.

[0007] The rear side of the gear ring is connected with the rear box body subassembly, and the front side of the gear ring is connected with the torsion arm.

[0008] The rear box body subassembly further comprises a rear box body, and the load-bearing plates on both sides of the rear box body are connected with the disconnecting device.

[0009] The disconnecting device comprises a concave-convex structure, an inclined sliding guide rail, a trolley, a mounting plate, a square steel pad, a square steel, and a connecting plate.

[0010] Preferably, the torsion arm is provided with a torsion pin on both sides.

[0011] Preferably, the trolley is internally rotatably connected with a trolley wheel for reducing the friction between the trolley and the inclined sliding guide rail.

[0012] Preferably, the internal inclined surface sliding guide rail is provided with a screw hole one.

[0013] Preferably, the internal installation plate is provided with a screw hole two, the screw hole two is internally passed through a screw rod two to fixedly connect the installation plate and the square steel backing plate together, and a U-shaped gasket is arranged between the installation plate and the square steel backing plate.

[0014] Preferably, the rear box body comprises an upper half rear box body and a lower half rear box body, and the upper half rear box body and the lower half rear box body are fixedly connected together through a connecting plate and a hexagonal bolt.

[0015] Preferably, upper lifting lugs are fixedly arranged on the two sides of the rear box body, the lifting lugs are connected with a hand chain block, so that the hand chain block pulls the lifting lugs on the two sides of the rear box body to axially separate the rear box body assembly and the gear ring in the gear box.

[0016] In summary, the utility model has the following beneficial technical effects:

[0017] After the utility model disconnects the connection between the gear ring and the rear box body, the rear box body assembly and the gear ring are axially separated through a jack and a hand chain block pulling the lifting lugs on the two sides of the rear box body, in this process, the bearing of the disconnected rear box body assembly is supported on the cabin bottom plate through the two side disconnecting devices, and slowly rolls off in the disconnecting process, until the sun gear and the planetary gear are disengaged and a certain axial gap is left, then the rear box body assembly is fixed in the disconnected position through the hand chain block and the tool bolt, so that the rear box body structure and the gear ring are quickly repaired for the staff. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front structure schematic view in the embodiment of the utility model;

[0019] Figure 2 is the right side structure schematic view in the embodiment of the utility model;

[0020] Figure 3 is the inclined surface sliding guide rail structure schematic view in the embodiment of the utility model;

[0021] Figure 4 is the structure schematic view in the embodiment of the utility model.

[0022] Mark explanation: 1, cabin bottom plate; 2, boss; 3, inclined surface sliding guide rail; 31, screw hole one; 4, trolley; 5, trolley wheel; 6, installation plate; 7, U-shaped gasket; 8, screw hole two; 9, square steel backing plate; 10, square steel; 11, connecting plate; 12, rear box body; 121, upper half rear box body; 13, lower half rear box body; 14, gear ring; 15, torsion arm; 16, torsion pin shaft; 17, lifting lug. DETAILED DESCRIPTION

[0023] The application will be described in further detail below with reference to the drawings in which Figures 1-4 The application will be described in further detail below with reference to the drawings in which

[0024] It should be noted that the drawings are schematic and not drawn to scale. The relative dimensions and proportions of the parts shown in the drawings have been exaggerated or reduced for the sake of clarity and convenience in the drawings, and any dimensions are merely exemplary and not limiting. Identical structural elements, elements or fittings appearing in two or more drawings are denoted by the same reference numerals to represent similar features.

[0025] The utility model discloses a gear box rear box body assembly tower track disconnecting device of generator set, and belongs to the field of generator set. Figures 1-4 The utility model discloses a gear box rear box body assembly tower track disconnecting device of generator set, and belongs to the field of generator set.

[0026] The rear side of the gear ring 14 is connected with the rear box body assembly, the front side of the gear ring 14 is connected with the torsion arm 15, the two sides of the torsion arm 15 are both installed with torsion pin shafts 16, and the disconnecting device is installed on the cabin bottom plate 1.

[0027] The rear box body assembly further includes a rear box body 12, the load-bearing plates on the two sides of the rear box body 12 are connected with the disconnecting device, the rear box body 12 includes an upper half rear box body 121 and a lower half rear box body 13, the connecting plate 11, the upper half rear box body 121 and the lower half rear box body 13 are fixedly connected together through hexagonal bolts between the upper half rear box body 121 and the lower half rear box body 13, the hexagonal bolts adopt the M20x70 mode, the upper lifting lugs 17 are fixedly installed on the two sides of the rear box body 12, the lifting lugs 17 are connected with the chain hoists, so that the chain hoists can pull the lifting lugs 17 on the two sides of the rear box body 12 to separate the rear box body assembly in the gear box from the gear ring 14 in the axial direction, and meanwhile, the rear box body 12 can be slowly separated from the gear ring 14 through the chain hoists pulling the rear box body, so that the rear box body 12 is prevented from being separated from the gear ring 14 due to the excessive weight of the rear box body 12 and the gear ring 14.

[0028] The disconnecting device includes a concave-convex 2, an inclined sliding guide rail 3, a trolley 4, a mounting plate 6, a square steel pad 9, a square steel 10 and a connecting plate 11, the two inclined sliding guide rails 3 are respectively installed on the two sides of the cabin bottom plate 1, and the inside of the inclined sliding guide rail 3 is provided with a screw hole one 31, the inside of the screw hole one 31 is threadedly connected with an inner hexagonal screw one for fixedly connecting the inclined sliding guide rail 3 with the cabin bottom plate 1, the inner hexagonal screw one adopts the M20x80 mode, the firmness of the inclined sliding guide rail 3 with the cabin bottom plate 1 is increased, and the rigidity between the inclined sliding guide rail 3 and the cabin bottom plate 1 is also increased.

[0029] The inner rotating connection of the trolley 4 is used for reducing the friction between the trolley 4 and the inclined slide rail 3, the trolley wheel 5 in the trolley 4 adopts a heavy steel wheel of 8 tons, so that the trolley has good rigidity, reaches the support of the square steel 10 to the rear box body assembly, the trolley 4 slides on the inclined slide rail 3, and the two concaves and convexes 2 are arranged at one end of the two inclined slide rails 3 respectively and are used for positioning the sliding distance of the trolley 4, the mounting plate 6 is fixedly installed on the trolley 4, the mounting plate 6 is internally provided with a screw hole two 8, an inner hexagonal screw two is passed through the inside of the screw hole two 8, and the mounting plate 6 and the square steel backing plate 9 are fixedly connected together, a U-shaped gasket 7 is installed between the mounting plate 6 and the square steel backing plate 9, the inner hexagonal screw two adopts an M30x70 type, so as to increase the rigidity between the mounting plate 6 and the square steel backing plate 9, the square steel backing plate 9 is fixedly installed with the square steel 10 through a hexagonal bolt, the hexagonal bolt adopts an M20x55 type, the other end of the square steel 10 is fixedly installed with the connecting plate 11, the connecting plate 11 is fixedly installed on the bearing plate of the rear box body 12 through a hexagonal bolt, the hexagonal bolt adopts an M20x70 type, the square steel 10 is cast by using a rigid material and has good support, and the support force of a single square steel 10 reaches 10 tons;

[0030] Specifically, the process of installing the track is that the screw rod one is inserted into the cabin bottom plate 1 by penetrating the screw hole one 31, the fixing of the inclined slide rail 3 is completed, then the mounting plate 6 on the top of the trolley 4 is slid on the surface of the inclined slide rail 3, the screw rod two is passed through the inside of the screw hole two 8 and the square steel backing plate 9, the square steel 10 is fixedly installed on the trolley 4 through the square steel backing plate 9, then the rear box body 12 and the connecting plate 11 are fixedly installed together through the hexagonal bolt, and the installation between the track and the rear box body 12 is completed.

[0031] Through the above structural design, after the connection between the gear ring 14 and the rear box body 12 is released, the lifting lug 17 on the two sides of the rear box body 12 is pulled by the jack and the hand-operated hoist to separate the gear box rear box body assembly and the gear ring 14 in the axial direction, in this process, the weight of the disengaged rear box body assembly is supported on the cabin bottom plate 1 through the two side disengaging devices, and the rear box body assembly is slowly rolled and disengaged in the disengaging process, until the sun gear and the planet gears are disengaged and a certain axial gap is left, then the rear box body assembly is fixed in the disengaged position by the hand-operated hoist and the tool bolt, so that the rear box body 12 and the gear ring 14 are quickly repaired.

[0032] Finally, it should be pointed out that: first, in the description of the utility model, it should be pointed out that, unless otherwise provided and limited, the terms "installation", "connection" and "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between the two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0033] Secondly: the utility model discloses the embodiment in the drawing, only relate to the structure with the embodiment of the utility model, other structures can refer to the usual design, under the condition of not conflict, the same embodiment and different embodiment of the utility model can be combined with each other;

[0034] Finally: the above only for the preferred embodiment of the utility model has, and does not use to limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should include in the protection scope of the utility model.

Claims

1. A tower track disengagement device for a gearbox rear case assembly of a genset, characterized by: The engine room floor (1), the gear ring (14), the torsion arm (15), the rear box body assembly; The rear side of the gear ring (14) is connected with the rear box body assembly, and the front side of the gear ring (14) is connected with the torsion arm (15), and the engine room floor (1) is provided with a disengaging device; The rear box body assembly further comprises a rear box body (12), and the load-bearing plates on both sides of the rear box body (12) are connected with the disengaging device. The disengaging device comprises a concave-convex (2), an inclined sliding rail (3), a trolley (4), a mounting plate (6), a square steel backing plate (9), a square steel (10), a connecting plate (11), two inclined sliding rails (3) are respectively arranged on both sides of the engine room floor (1), the trolley (4) slides on the inclined sliding rail (3), and two concave-convexes (2) are respectively arranged at one end of the two inclined sliding rails (3) to position the sliding distance of the trolley (4), the mounting plate (6) fixedly arranged on the trolley (4) is fixedly connected with the square steel backing plate (9) through a hexagonal screw, the square steel backing plate (9) is fixedly arranged with the square steel (10) through a hexagonal bolt, and the connecting plate (11) fixedly arranged at the other end of the square steel (10) is fixedly arranged on the load-bearing plate of the rear box body (12) through a hexagonal bolt.

2. The genset gearbox rear case assembly tower track trip of claim 1, wherein: Both sides of the torsion arm (15) are provided with torsion pins (16).

3. The tower track disengagement apparatus for a genset gearbox aftercase assembly of claim 1, wherein: The trolley (4) is rotatably connected with a trolley wheel (5) arranged inside the trolley (4) to reduce the friction between the trolley (4) and the inclined sliding rail (3).

4. The tower rail trip device for a generator set's gearbox rear case assembly of claim 1, wherein: The inclined sliding rail (3) is internally provided with a screw hole (31).

5. The tower track disengagement apparatus for a genset gearbox aftercase assembly of claim 1, wherein: The mounting plate (6) is internally provided with a screw hole (8), the screw hole (8) is internally provided with a screw rod (2) to fixedly connect the mounting plate (6) with the square steel backing plate (9), and a U-shaped gasket (7) is arranged between the mounting plate (6) and the square steel backing plate (9).

6. The tower track disengagement apparatus for a generator set's gearbox rear case assembly of claim 1, wherein: The rear box body (12) comprises an upper half rear box body (121) and a lower half rear box body (13), and the connecting plate (11) is fixedly connected with the upper half rear box body (121) and the lower half rear box body (13) through a hexagonal bolt.

7. The tower track disengagement apparatus of a genset gearbox rear case assembly according to claim 6, wherein: The rear box body (12) is fixedly provided with an upper lifting lug (17) on both sides, the lifting lug (17) is connected with a hand chain block, so that the hand chain block pulls the lifting lug (17) on both sides of the rear box body (12) to axially separate the gear box and the gear ring (14).

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