CN210317618U

CN210317618U - Wind generating set barring gear

Info

Publication number: CN210317618U
Application number: CN201921422251.3U
Authority: CN
Inventors: 李效龙; 程青华; 李苏东; 徐栋; 陈武
Original assignee: Nanjing High Speed Transmission Equipment Group Co Ltd; Nanjing High Speed Gear Manufacturing Co Ltd
Current assignee: Nanjing High Speed and Accurate Gear Group Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-04-14
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a wind generating set barring gear, it belongs to the wind power generation field, including motor, reduction gear, output gear, rotary joint and handle, the motor has the motor shaft, the reduction gear with the output of motor shaft is connected, the output gear with the output of reduction gear is connected, rotary joint with the motor shaft is kept away from the one end of reduction gear is connected, the handle with rotary joint can dismantle the connection. When the fan brake disc is installed, the output gear is driven by the handle, so that installation and debugging can be performed, and the adjustment of the center distance and the meshing side clearance between the output gear and the large gear of the brake disc of the fan can be realized in an auxiliary manner; when the fan transmission system is used, the motor can be used for driving the jigger, the jigger can also be manually driven by the handle, power is transmitted to the output gear through the speed reducer, the running reliability and the service life of the fan transmission system are guaranteed, risks and labor intensity are reduced, and the daily installation, maintenance and debugging efficiency of the fan is improved.

Description

Wind generating set barring gear

Technical Field

The utility model relates to a wind power generation field especially relates to a wind generating set barring gear.

Background

The conventional wind generating set needs to be installed, maintained and debugged daily, such as detection and maintenance of a variable pitch system, a main shaft system, a main gear and the like, and a generator pair is moderate, a fan impeller is required to be feathered, rotated to a specific position and fixed by an impeller locking pin, and the working condition can be realized only by manually turning a coupling brake disc.

Because of the uncertainty of wind power, the moment of the high-speed shaft of the main gearbox changes constantly, particularly, with the continuous increase of the impeller of the fan, the transmission system of the whole fan is increased, the frictional resistance moment between parts gradually rises, so that manual barring becomes more and more difficult, the reliability is lower and lower, the danger is higher and higher, and the operation stability and the service life of the fan transmission system can be seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind generating set barring gear to solve the manual barring difficulty of manual work that exists among the prior art, the reliability is low, dangerous big, and can seriously influence the stability of fan transmission system operation and life's technical problem.

As the conception, the utility model adopts the technical proposal that:

a wind generating set barring apparatus, comprising:

a motor having a motor shaft;

the speed reducer is connected with the output end of the motor shaft;

the output gear is connected with the output end of the speed reducer;

the rotary joint is connected with one end of the motor shaft, which is far away from the speed reducer;

and the handle is detachably connected with the rotary joint.

Wherein, the reduction gear includes:

the box body is connected with the motor, and one end of the box body is provided with a central hole;

the central shaft is arranged in the central hole, and one end of the central shaft is connected with the motor shaft;

a transmission part connected with the central shaft;

and the output shaft is connected with the transmission part, and the output gear is connected with the output shaft.

The bearing is sleeved on the central shaft in the central hole, one side of the bearing is abutted to the flange of the central hole, and the other side of the bearing is provided with a hole stopper.

The central hole is internally provided with a framework oil seal at one side of the hole block far away from the bearing, and the framework oil seal is provided with a sealing lip and a dust lip.

The box body is of a split structure and comprises a flange, a shell and an end cover which are connected in sequence, the center hole is formed in the flange, and the output shaft penetrates out of the end cover and is connected with the output gear.

The transmission part comprises a first-stage planetary mechanism and a second-stage planetary mechanism which are connected with each other, the first-stage planetary mechanism is connected with the central shaft, the second-stage planetary mechanism is connected with the output shaft, and the first-stage planetary mechanism and the second-stage planetary mechanism are both single-arm planetary mechanisms.

The primary planetary mechanism comprises a primary central wheel and a primary planet wheel meshed with the primary central wheel, the primary central wheel is connected with the central shaft, the secondary planetary mechanism comprises a secondary central wheel and a secondary planet wheel meshed with the secondary central wheel, and the primary planet wheel and the secondary planet wheel share a gear ring.

The first-stage central wheel and the central shaft are integrally formed to form a gear shaft.

The motor comprises a shell, the rotary joint is located in the shell, a mounting hole is formed in the position, right opposite to the rotary joint, of the shell, and the handle is arranged at the mounting hole.

The motor speed reducer is characterized by further comprising a supporting structure, wherein the supporting structure comprises a fixing support used for supporting the motor and an adjusting support used for supporting the speed reducer, and the position of the adjusting support is adjustable.

The utility model has the advantages that:

the utility model provides a wind generating set barring gear, when installing, output gear need with the gear wheel meshing of the brake disc of fan, be connected handle and rotary joint, through handle drive output gear, can install and debug, the supplementary adjustment that realizes centre-to-centre spacing, meshing backlash between the gear wheel of the brake disc of output gear and fan; when the fan transmission system is used, the motor can be used for driving the jigger, the jigger can also be manually driven by the handle, power is transmitted to the output gear through the speed reducer, the running reliability and the service life of the fan transmission system are guaranteed, risks and labor intensity are reduced, and the daily installation, maintenance and debugging efficiency of the fan is improved.

Drawings

Fig. 1 is a front view of a barring gear of a wind generating set provided by an embodiment of the present invention;

fig. 2 is a bottom view of a barring gear of a wind generating set provided by an embodiment of the present invention;

fig. 3 is a front view of a backing plate of a barring gear of a wind generating set provided by an embodiment of the present invention;

fig. 4 is a sectional view of a part of the structure of a barring gear of a wind generating set provided by an embodiment of the invention;

fig. 5 is an enlarged view at a of fig. 4.

In the figure:

1. a motor;

2. a speed reducer; 211. a flange; 212. a housing; 213. an end cap; 221. a central shaft; 222. an output shaft; 223. a bearing; 224. blocking the hole; 225. framework oil seal; 231. a primary planet wheel; 232. a primary planet carrier; 233. a ring gear; 234. a secondary central wheel; 235. a secondary planet wheel; 236. a secondary planet carrier;

3. an output gear;

4. a rotary joint;

5. a handle;

6. a baffle plate;

7. lifting lugs;

8. fixing a bracket; 81. a second base plate; 82. a second bracket; 83. cushion blocks; 84. a tool box;

9. adjusting the bracket; 91. a first base plate; 911. a waist-shaped hole; 92. a first bracket; 93. a base plate; 931. a U-shaped groove.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 5, an embodiment of the present invention provides a wind generating set barring gear, which is engaged with a large gear of a brake disc of a fan to drive a wind generating set to move.

The turning gear of the wind generating set comprises a motor 1, a speed reducer 2 and an output gear 3, wherein the motor 1 is provided with a motor shaft, the speed reducer 2 is connected with the output end of the motor shaft, the output gear 3 is connected with the output end of the speed reducer 2, and the power of the motor 1 can be transmitted to the output gear 3 through the speed reducer 2. The barring gear of the wind generating set further comprises a rotary joint 4 and a handle 5, the rotary joint 4 is connected with one end, far away from the speed reducer 2, of the motor shaft, and the handle 5 is detachably connected with the rotary joint 4.

When the fan brake disc is installed, the output gear 3 needs to be meshed with a large gear of a brake disc of a fan, the handle 5 is connected with the rotary joint 4, the output gear 3 is driven by the handle 5, installation and debugging can be carried out, and adjustment of the center distance and the meshing backlash between the output gear 3 and the large gear of the brake disc of the fan is achieved in an auxiliary mode; when the fan transmission system is used, the motor can be used for driving the jigger, the jigger can also be manually driven by the handle 5, power is transmitted to the output gear 3 through the speed reducer, the running reliability and the service life of the fan transmission system are guaranteed, risks and labor intensity are reduced, and the daily installation, maintenance and debugging efficiency of the fan is improved.

The motor 1 has driving and braking functions and can be started and stopped according to actual requirements in the using process. The motor 1 comprises a shell, the rotary joint 4 is located in the shell, a mounting hole is formed in the position, right facing the rotary joint 4, of the shell, and the handle 5 is arranged at the mounting hole. When the handle 5 is not needed, the handle 5 can be stored, and when the handle 5 is needed, the handle 5 can be connected with the rotary joint 4. Specifically, handle 5 can be with 4 joints of rotary joint, is provided with the recess on the handle 5, is provided with the arch on the rotary joint 4, and the arch can be gone into in the recess for turning handle 5 can drive the motor shaft and rotate.

The speed reducer 2 comprises a box body, an input part, a transmission part and an output part, wherein the input part, the transmission part and the output part are arranged in the box body. The box is connected with motor 1, and the one end of box has the centre bore, and input portion includes center pin 221, and center pin 221 sets up in the centre bore, and the one end and the motor shaft of center pin 221 are connected, and transmission portion is connected with center pin 221, and output portion includes output shaft 222, and output shaft 222 is connected with transmission portion, and output gear 3 is connected with output shaft 222. The power of the motor shaft is transmitted to the transmission part through the central shaft 221, and then transmitted to the output shaft 222, thereby driving the output gear 3 to rotate. The motor shaft is connected with the central shaft 221 by a flat key.

The box body is of a split structure, and is convenient to mount, dismount and maintain. The box body comprises a flange 211, a shell 212 and an end cover 213 which are connected in sequence, a central hole is formed in the flange 211, and an output shaft 222 penetrates through the end cover 213 to be connected with the output gear 3. The flange 211 and the motor 1 and the housing 212 and the end cover 213 are connected by bolts. A double-lip framework oil seal is arranged between the output shaft 222 and the end cover 213.

A bearing 223 is fitted around the center shaft 221 in the center hole, one side of the bearing 223 abuts against a flange of the center hole, and the other side of the bearing 223 is provided with a hole stopper 224. Hole keeps off 224 the cover and establishes on the recess of center pin 221, and the flange keeps off 224 the cooperation with the hole, has the positioning action on the one hand, and on the other hand, when maintaining, can directly extract center pin 221 and bearing 223, need not to dismantle the flange 211 of box, and it is convenient to maintain.

One side of keeping away from bearing 223 in hole fender 224 in the centre bore is provided with skeleton oil blanket 225, and skeleton oil blanket 225 has seal lip and dust lip, and seal lip plays sealed effect, and the dust lip plays outside dustproof effect. Can prevent the inside lubricating oil of box to leak on the one hand, prevent that lubricating oil from damaging motor 1, on the other hand can prevent outside pollutant (like dust and iron fillings) to get into inside the box, prevent to pollute lubricating oil and damage 2 inside parts of reduction gear, has eliminated the potential safety hazard of reduction gear 2 operation, has improved the operational reliability and the life of reduction gear 2.

In this embodiment, a main oil seal is further disposed between the framework oil seal 225 and the bearing 223, that is, the main oil seal is located on the inner side of the framework oil seal 225, a sealing lip is disposed on the main oil seal to play a main sealing role, lubricating grease is disposed between the framework oil seal 225 and the main oil seal, and lubricating oil is disposed between the main oil seal and the bearing 223. The main oil seal and the framework oil seal 225 are matched to form a double-sealing structure, and the sealing performance is better.

The transmission part comprises a first-stage planetary mechanism and a second-stage planetary mechanism which are connected with each other, the first-stage planetary mechanism is connected with the central shaft 221, the second-stage planetary mechanism is connected with the output shaft 222, and the first-stage planetary mechanism and the second-stage planetary mechanism are both single-arm planetary mechanisms. The first-stage planetary mechanism and the second-stage planetary mechanism are matched, so that the gear box can have a large transmission ratio, and the requirement of speed reduction is met.

The first-stage planetary mechanism comprises a first-stage central wheel, a first-stage planetary wheel 231 and a first-stage planet carrier 232, the first-stage central wheel is connected with the central shaft 221, the first-stage planetary wheel 231 is meshed with the first-stage central wheel, and the first-stage planet carrier 232 is connected with the first-stage planetary wheel 231. The secondary planetary mechanism comprises a secondary central wheel 234, a secondary planet wheel 235 and a secondary planet carrier 236, the secondary central wheel 234 is connected with the primary planet carrier 232, the secondary planet wheel 235 is meshed with the secondary central wheel 234, and the secondary planet carrier 236 is connected with the secondary planet wheel 235 and is connected with the output shaft 222. The power of the central shaft 221 is transmitted to the primary planet gear 231 through the primary central gear, then transmitted to the secondary central gear 234 through the primary planet carrier 232, then transmitted to the secondary planet carrier 236 through the secondary planet gear 235, and further transmitted to the output shaft 222.

The primary planet wheel 231 and the secondary planet wheel 235 share the same gear ring 233, so that the number of parts is reduced, and the primary planet mechanism and the secondary planet mechanism are compact in structure. The primary planet gears 231 are meshed with the primary central gear and the gear ring 233 at the same time, and the secondary planet gears 235 are meshed with the secondary central gear 234 and the gear ring 233 at the same time. The gear ring 233 is located between the flange 211 and the shell 212, one end of the gear ring 233 is connected with the flange 211, and the other end of the gear ring 233 is connected with the shell 212, so that the gear ring is convenient to mount and dismount, and the radial occupied space is favorably reduced.

In this embodiment, the first-level central wheel and the central shaft 221 are integrally formed to form a gear shaft, so that the number of parts is reduced, the occupied space is reduced, and the structural strength is ensured. The center line of the primary planet carrier 232 and the center line of the secondary planet carrier 236 both coincide with the axis of the central shaft 221.

The output shaft 222 is in key connection with the output gear 3, so that the processing and the manufacturing are convenient, the cost is low, the output shaft 222 is separated from the output gear 3, the weight of the speed reducer 2 is reduced, and the carrying is convenient. In the present embodiment, the output shaft 222 and the output gear 3 are connected by a spline, which improves stability. The end of the output shaft 222 is provided with a baffle 6, one end of the output gear 3 is abutted against the shaft shoulder of the output shaft 222, and the other end of the output gear is abutted against the baffle 6, so that the reliability is high, and the maintenance and the replacement are convenient.

The box body of the speed reducer 2 is provided with a lifting lug 7, so that the speed reducer 2 can be moved independently or the motor 1 and the speed reducer 2 can be moved simultaneously.

In addition, the barring gear of the wind generating set further comprises a supporting structure, the supporting structure comprises a fixing support 8 used for supporting the motor 1 and an adjusting support 9 used for supporting the speed reducer 2, the position of the adjusting support 9 is adjustable, and the center distance between the output gear 3 and a large gear of a brake disc of the fan can be adjusted conveniently.

The adjusting bracket 9 comprises a first bottom plate 91 and a first bracket 92 arranged on the first bottom plate 91, a waist-shaped hole 911 is formed in the first bottom plate 91, a bolt can be arranged in the waist-shaped hole 911, the waist-shaped hole 911 is arranged, so that the horizontal position of the first bottom plate 91 is convenient to adjust, and the first bracket 92 is connected with the shell 212 of the speed reducer 2. The first bracket 92 has an arc-shaped groove which is matched with the outer shape of the housing 212 of the speed reducer 2 so that the first bracket 92 can hold the speed reducer 2.

In order to facilitate the adjustment of the vertical position of the first bottom plate 91, the bottom of the first bottom plate 91 is provided with a base plate 93, the base plate 93 is provided with a U-shaped groove 931, the U-shaped groove 931 faces right opposite to the waist-shaped hole 911, on one hand, the bolt is facilitated to penetrate, and on the other hand, the U-shaped groove 931 is clamped on the bolt and can limit the base plate 93. The thickness of the backing plate 93 can be selected as desired, and the position of the first bottom plate 91 in the vertical direction can be adjusted.

When the fan is installed, the position of the adjusting support 9 is adjusted, so that the output gear 3 is meshed with a large gear of a brake disc of the fan, the handle 5 is connected with the rotary joint 4, the output gear 3 is driven by the handle 5 to be debugged, and the daily installation, maintenance and debugging efficiency of the fan is improved.

The fixing bracket 8 includes a second bottom plate 81 and a second bracket 82 disposed on the second bottom plate 81, a mounting hole is disposed on the second bottom plate 81, a bolt can be disposed in the mounting hole, and the second bracket 82 is connected to the housing of the motor 1. The second bracket 82 has an arc-shaped slot which is matched with the shape of the housing of the motor 1, so that the second bracket 82 can hold the motor 1. A cushion block 83 is arranged between the second bracket 82 and the motor 1, and the cushion block 83 is made of rubber and has a damping effect.

In order to facilitate storage, a tool box 84 is provided between the second bottom plate 81 and the second bracket 82, and the tool box 84 is used to store parts, such as the output gear 3, the baffle 6, the bolt, etc., when the barring gear is not mounted.

In order to improve the utilization rate of the wind generating set barring device and reduce the cost, the wind generating set barring device is divided into a moving part, a fixed part and a connecting part. Motor 1 and reduction gear 2 are the removal part, adopt the lightweight design theory when the design, and light in weight, compact structure, portable and maintenance, with low costs, and high-usage, every wind field is equipped with a motor 1 and a reduction gear 2 that corresponds, when using, moves motor 1 and reduction gear 2 to fan department. The supporting structure is a fixed part and is fixedly arranged on the mounting table, and each fan is provided with one supporting structure. The remaining part is a connecting part stored in the tool box 84 for connecting and fixing the fan and the barring gear.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wind generating set barring gear which characterized in that includes:

a motor (1) having a motor shaft;

the speed reducer (2) is connected with the output end of the motor shaft;

the output gear (3) is connected with the output end of the speed reducer (2);

the rotary joint (4) is connected with one end of the motor shaft, which is far away from the speed reducer (2);

and the handle (5) is detachably connected with the rotary joint (4).

2. Wind turbine generator unit barring gear according to claim 1, characterized in that the reducer (2) comprises:

the box body is connected with the motor (1), and one end of the box body is provided with a central hole;

the central shaft (221) is arranged in the central hole, and one end of the central shaft (221) is connected with the motor shaft;

a transmission part connected with the central shaft (221);

and an output shaft (222) connected to the transmission unit, wherein the output gear (3) is connected to the output shaft (222).

3. The wind generating set barring gear according to claim 2, characterized in that a bearing (223) is sleeved in the central hole on the central shaft (221), one side of the bearing (223) abuts against a flange of the central hole, and the other side of the bearing (223) is provided with a hole stopper (224).

4. The barring gear according to claim 3, characterized in that a framework oil seal (225) is arranged in the central hole on the side of the hole stopper (224) far away from the bearing (223), and the framework oil seal (225) is provided with a sealing lip and a dust lip.

5. The barring gear of the wind generating set according to claim 2, wherein the box body is of a split structure and comprises a flange (211), a shell (212) and an end cover (213) which are connected in sequence, the central hole is formed in the flange (211), and the output shaft (222) penetrates through the end cover (213) to be connected with the output gear (3).

6. The wind generating set barring device according to claim 2, characterized in that the transmission part comprises a primary planetary mechanism and a secondary planetary mechanism which are connected with each other, the primary planetary mechanism is connected with the central shaft (221), the secondary planetary mechanism is connected with the output shaft (222), and the primary planetary mechanism and the secondary planetary mechanism are both single-arm planetary mechanisms.

7. Wind generating set barring gear according to claim 6, characterized in that the primary planetary mechanism comprises a primary sun gear and a primary planet gear (231) meshing with the primary sun gear, the primary sun gear being connected to the central shaft (221), the secondary planetary mechanism comprises a secondary sun gear (234) and a secondary planet gear (235) meshing with the secondary sun gear (234), the primary planet gear (231) and the secondary planet gear (235) share one ring gear (233).

8. The wind generating set barring gear according to claim 7, characterized in that the primary central wheel and the central shaft (221) are integrally formed as a gear shaft.

9. The barring device of the wind generating set according to any one of claims 1 to 8, wherein the motor (1) comprises a housing, the rotary joint (4) is located in the housing, a mounting hole is formed in the housing at a position facing the rotary joint (4), and the handle (5) is arranged at the mounting hole.

10. Wind turbine generator unit barring gear according to any of the claims 1-8, characterized in that it further comprises a support structure comprising a fixed bracket (8) for supporting the motor (1) and an adjustment bracket (9) for supporting the speed reducer (2), the position of the adjustment bracket (9) being adjustable.