CN207989239U

CN207989239U - A kind of roller yaw system torsion cable protection device

Info

Publication number: CN207989239U
Application number: CN201820269783.7U
Authority: CN
Inventors: 潘爱华; 王安正; 于长生; 聂志平; 袁姗姗
Original assignee: NANJING WIND POWER TECHNOLOGY Co Ltd
Current assignee: NANJING WIND POWER TECHNOLOGY Co Ltd
Priority date: 2018-02-26
Filing date: 2018-02-26
Publication date: 2018-10-19
Anticipated expiration: 2028-02-26

Abstract

The utility model is related to a kind of roller yaw systems to turn round cable protection device, including crossbeam, landing slab, connection sheet, inner ring, outer shroud and ball assembly；The utility model changes the friction type between traditional cable and limitation ring, change sliding friction is rolling friction, substantially reduce frictional force, reduce the degree of wear, the maintenance period and service life of cable are extended, and ball assembly has vibration damping and automatic resilience function, the collision dynamics between cable and limitation ring can be weakened significantly, the damage of colliding with for avoiding cable to the greatest extent, further extends the service life of cable.

Description

A kind of roller yaw system torsion cable protection device

Technical field

The utility model is related to a kind of roller yaw systems to turn round cable protection device.

Background technology

Wind energy is a kind of resourceful, cleanliness without any pollution regenerative resource, and wind-power electricity generation becomes and increases in the world in recent years The long most fast energy, wind power generation industry also become a new industry having a extensive future.Cable is electric in wind power generating set The unique transport path of energy, the length of structural intergrity and service life directly affect the stabilization and hair of wind power generating set work Electricity.

Currently, horizontal axis wind-driven generator group is widely used, add wind wheel weight huge positioned at high aerial cabin, in wind turbine During yaw system is run, cabin and wind wheel shaking are bigger, and the Stranded cable being attached thereto fierce therewith can also be swung, Though Stranded cable mutually twist, which is formed, turns round cable to increase intensity, during swing, inevitably occur frequent It wears and collides with, when serious, cable insulation damages completely, arcing, even results in cable and burns.

There are two main classes for existing torsion cable protection device：The first kind blocks cable and limitation ring using package rubber skin Friction；Disadvantage：Rubber skin is not fixed easily, and is easy to fall off, and be will produce larger heat during friction and be unfavorable for electricity The heat dissipation of cable, at the same rubber consumption also quickly, maintenance period is short, uneconomical；Second class, the increase limitation point taken are maximum The shaking of the limitation cable of degree, while assisting using rubber skin, protect cable；But increases limitation point and be merely capable of limiting The shaking of cable cannot change sliding friction and the essence collided between cable and limitation ring, need further improvement.

Utility model content

In view of the above-mentioned state of the art, the technical problem to be solved by the utility model is to provide one kind to subtract significantly Small frictional force between cable and limitation ring, reduces the degree of wear, extends the maintenance period and service life of cable, and The collision dynamics between cable and limitation ring can be weakened significantly, avoid the roller of the damage of colliding with of cable to the greatest extent Yaw system turns round cable protection device.

Technical solution is used by the utility model solves above-mentioned technical problem：A kind of roller yaw system torsion cable guarantor Protection unit, including crossbeam, landing slab, connection sheet, inner ring, outer shroud and ball assembly, which is characterized in that the side of the landing slab Both ends are respectively and fixedly provided with a connection sheet being symmetrically distributed, and two connection sheets are each attached to a middle side part of crossbeam；Institute The other side for stating landing slab offers semicircle orifice；Insertion is fixed with inner ring, the radius and radian of the inner ring in the semicircle orifice It is mutually adapted with the radius and radian of semicircle orifice；Be fixed with outer shroud on the outside of the opening of the inner ring, the radius of the outer shroud and The radius and radian all same of radian and inner ring, the inner ring form a complete limitation ring, the limit with outer shroud split Two mounting hole composite rims are at least offered on the inner wall of ring processed, each mounting hole composite rim includes multiple along the circumferential direction isogonisms The mounting hole combination of degree distribution, each mounting hole combination includes a first through hole and two the second through-holes, described in two Second through-hole is symmetrically dispersed in the both sides of first through hole.

Preferably, there are one ball assemblies for installing in each mounting hole combination, and the ball assembly includes U-shaped Frame, axis pin, ball, guide post, the first spring, threaded post, nut, second spring and gasket；The side planar central of the U-shaped frame It is fixed with threaded post, two symmetrical guide posts, two guide post difference are further fixed on a side plane of the U-shaped frame Positioned at the both sides of threaded post.

Preferably, it is arranged with second spring outside the threaded post, the side that one end of the second spring resists U-shaped frame is flat Face.

Preferably, the first spring there are one being arranged outside two guide posts, one end of two first springs is supported A firmly side plane of U-shaped frame.

Preferably, another side plane both ends of the U-shaped frame are outwardly formed there are one the flange that is symmetrically distributed, and two Intert between a flange and be fixed with axis pin, the outer sheath of the axis pin is equipped with multiple balls, and each ball can enclose It is rotated around axis pin.

Preferably, two guide posts pass through two the second through-holes from inside to outside respectively, and two described on guide post The other end of first spring resists the inside circumference face of limitation ring, and two first springs are in confined state always.

Preferably, the threaded post sequentially passes through first through hole and gasket and is spirally connected and is screwed into nut from inside to outside, institute The inner end for stating gasket is fitted on the outer circumference face of limitation ring, and the other end of the second spring resists the inside circle of limitation ring Circumferential surface, the second spring are in confined state always.

Preferably, two mounting hole composite rims are symmetrical above and below is distributed or is interspersed.

Preferably, when two mounting hole composite rims are interspersed, any one institute in a mounting hole composite rim The angle that mounting hole combines between combining with adjacent two mounting holes in another mounting hole composite rim is stated to be equal.

Compared with prior art, the utility model has the advantage of：The utility model changes traditional cable and limitation Friction type between ring, change sliding friction substantially reduce frictional force into rolling friction, reduce the degree of wear, extend The maintenance period and service life of cable, and ball assembly has vibration damping and automatic resilience function, can weaken significantly cable and Collision dynamics between limitation ring avoids the damage of colliding with of cable to the greatest extent, and further extend cable uses the longevity Life.

Description of the drawings

Fig. 1 is structure chart when the utility model is symmetrically arranged using two layers of ball assembly；

Fig. 2 is structure chart when the utility model is staggered using two layers of ball assembly；

Fig. 3 is the structure chart of the ball assembly of the utility model.

Specific implementation mode

As shown in Figure 1,3, a kind of roller yaw system turns round cable protection device, including crossbeam 1, landing slab 2, connection sheet 3, Inner ring 4, outer shroud 5 and ball assembly；The side both ends of landing slab 2 are respectively and fixedly provided with a connection sheet being symmetrically distributed 3, two Connection sheet 3 is each attached to a middle side part of crossbeam 1；The other side of landing slab 2 offers semicircle orifice 21；It is embedded solid in semicircle orifice 21 There are inner ring 4, the radius and radian of inner ring 4 to be mutually adapted with the radius and radian of semicircle orifice 21 surely；It is solid on the outside of the opening of inner ring 4 There are outer shroud 5, the radius and radian of outer shroud 5 and the radius of inner ring 4 and radian all same, inner ring 4 to form one with 5 split of outer shroud surely A complete limitation ring 15 opens up on the inner wall of limitation ring 15 there are two mounting hole composite rim, above and below two mounting hole composite rims It is symmetrical；Each mounting hole composite rim includes six mounting hole being along the circumferential direction angularly distributed combinations, each mounting hole Combination includes a first through hole 151 and two the second through-holes 152, and two the second through-holes 152 are symmetrically dispersed in first through hole 151 both sides；There are one ball assemblies for installing in each mounting hole combination, and ball assembly includes U-shaped frame 6, axis pin 7, ball 8, guide post 9, the first spring 10, threaded post 11, nut 12, second spring 13 and gasket 14；The side planar central of U-shaped frame 6 is solid Surely there is threaded post 11, two symmetrical guide posts 9 are further fixed on a side plane of U-shaped frame 6, two guide posts 9 are located at The both sides of threaded post 11, are arranged with second spring 13 outside threaded post 11, and the side that one end of second spring 13 resists U-shaped frame 6 is flat Face；It is arranged outside two guide posts 9 there are one the first spring 10, the side that one end of two the first springs 10 resists U-shaped frame 6 is flat Face；Another side plane both ends of U-shaped frame 6 are outwardly formed there are one the flange 61 that is symmetrically distributed, between two flange 61 Interspersed to be fixed with axis pin 7, the outer sheath of axis pin 7 is equipped with 12 balls 8, and each ball 8 can surround axis pin 7 and rotate；Two are led Column 9 passes through two the second through-holes 152, the other end of two the first springs 10 being located on guide post 9 to resist from inside to outside respectively The inside circumference face of limitation ring 15, two the first springs 10 are in confined state always；Threaded post 11 is worn successively from inside to outside It crosses first through hole 151 and gasket 14 and is spirally connected and be screwed into nut 12, the inner end of gasket 14 is fitted in the outside circle of limitation ring 15 On circumferential surface, the other end of second spring 13 resists the inside circumference face of limitation ring 15, and second spring 13 is in by compression shape always State, to which ball assembly is attached in mounting hole combination, U-shaped frame 6 and the axis pin 7 being connected on U-shaped frame 6 and 12 balls 8 can threadingly column 11 and two guide posts 9 telescopic moving and automatic rebounding in limitation ring 15；Similarly, other mounting hole groups Also according to said method there are one ball assemblies for installing in conjunction.

As shown in Fig. 2, two mounting hole composite rims on the inner wall of limitation ring 15 can also be interspersed, a mounting hole group It closes the mounting hole that the combination of any one mounting hole in circle is located at adjacent two in another mounting hole composite rim and combines it Between angle be equal.

In use, equidistantly fix multiple crossbeams 1 on the inner wall of tower, and the position of each crossbeam 1 be respectively positioned on it is same In vertical straight line, then the cable of the mutual twist in yaw system is passed through to the limitation ring 15 on each crossbeam 1 so that cable Between multiple ball assemblies in each limitation ring 15, when the yaw system of wind turbine drives cable fierceness to swing, cable Surface can be rolled around along any number of balls in ball assembly, to reducing the mill generated by friction significantly Damage, and cable can also frequently hit ball assembly when swinging, the second spring 13 in ball assembly and two the first springs 10 can realize vibration damping and automatic rebounding effect of the ball assembly in limitation ring 15, largely reduced between cable and limitation ring 15 Impact force, to preferably protecting cable.

Currently, horizontal axis wind-driven generator group is widely used, add wind wheel weight huge positioned at high aerial cabin, in wind turbine During yaw system is run, cabin and wind wheel shaking are bigger, and the Stranded cable being attached thereto fierce therewith can also be swung, Though Stranded cable mutually twist, which is formed, turns round cable to increase intensity, during swing, inevitably occur frequent It wears and collides with, when serious, cable insulation damages completely, arcing, even results in cable and burns, existing torsion cable protection device There are two main classes：The first kind blocks the friction of cable and limitation ring using package rubber skin；Disadvantage：Rubber skin is not fixed easily, and is held It is easy to fall off, and will produce during friction the heat dissipation that larger heat is unfavorable for cable, at the same rubber consumption also very Soon, maintenance period is short, uneconomical；Second class, the increase limitation point taken, limits the shaking of cable, while auxiliary to the greatest extent It helps and uses rubber skin, protect cable；But increase the shaking that limitation point is merely capable of limitation cable, cable and limit cannot be changed Sliding friction and the essence collided between ring processed.

The utility model changes the friction type between traditional cable and limitation ring, becomes sliding friction and rubs to roll It wipes, substantially reduces frictional force, reduce the degree of wear, extend the maintenance period and service life of cable, and ball assembly Have vibration damping and automatic resilience function, the collision dynamics between cable and limitation ring can be weakened significantly, avoided to the greatest extent The damage of colliding with of cable, further extends the service life of cable.

Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of skill in the art that its according to So can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is replaced on an equal basis It changes；And these modifications or replacements, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution Spirit and scope.

Claims

1. a kind of roller yaw system turns round cable protection device, including crossbeam, landing slab, connection sheet, inner ring, outer shroud and ball set Part, which is characterized in that the side both ends of the landing slab are respectively and fixedly provided with a connection sheet being symmetrically distributed, two companies Contact pin is each attached to a middle side part of crossbeam；The other side of the landing slab offers semicircle orifice；It is embedded solid in the semicircle orifice There are inner ring, the radius and radian of the inner ring and the radius and radian of semicircle orifice to be mutually adapted surely；Outside the opening of the inner ring Side is fixed with outer shroud, the radius and radian of the outer shroud and the radius of inner ring and radian all same, the inner ring and outer shroud split A complete limitation ring is formd, two mounting hole composite rims are at least offered on the inner wall of the limitation ring, it is each to install Hole composite rim includes multiple mounting holes combinations being along the circumferential direction angularly distributed, and each mounting hole combination includes one the One through-hole and two the second through-holes, two second through-holes are symmetrically dispersed in the both sides of first through hole.

2. a kind of roller yaw system according to claim 1 turns round cable protection device, which is characterized in that each peace Installing is filled in the combination of hole there are one ball assembly, the ball assembly include U-shaped frame, axis pin, ball, guide post, the first spring, Threaded post, nut, second spring and gasket；The side planar central of the U-shaped frame is fixed with threaded post, and the one of the U-shaped frame Two symmetrical guide posts are further fixed on side plane, two guide posts are located at the both sides of threaded post.

3. a kind of roller yaw system according to claim 2 turns round cable protection device, which is characterized in that the threaded post It is arranged with second spring outside, one end of the second spring resists a side plane of U-shaped frame.

4. a kind of roller yaw system according to claim 2 turns round cable protection device, which is characterized in that led described in two First spring there are one being arranged outside column, one end of two first springs resists a side plane of U-shaped frame.

5. a kind of roller yaw system according to claim 2 turns round cable protection device, which is characterized in that the U-shaped frame Another side plane both ends be outwardly formed there are one the flange that is symmetrically distributed, intert between two flange and be fixed with The outer sheath of axis pin, the axis pin is equipped with multiple balls, and each ball can surround axis pin and rotate.

6. a kind of roller yaw system according to claim 4 turns round cable protection device, which is characterized in that led described in two Column passes through two the second through-holes, the other end of two first springs being located on guide post to resist limitation from inside to outside respectively The inside circumference face of ring, two first springs are in confined state always.

7. a kind of roller yaw system according to claim 3 turns round cable protection device, which is characterized in that the threaded post First through hole and gasket are sequentially passed through from inside to outside and is spirally connected and is screwed into nut, and the inner end of the gasket is fitted in limitation ring On outer circumference face, the other end of the second spring resists the inside circumference face of limitation ring, and the second spring is in always Confined state.

8. a kind of roller yaw system according to claim 1 turns round cable protection device, which is characterized in that two peaces The distribution symmetrical above and below of dress hole composite rim is interspersed.

9. a kind of roller yaw system according to claim 8 turns round cable protection device, which is characterized in that two peaces When dress hole composite rim is interspersed, any one of mounting hole combination in a mounting hole composite rim and two adjacent positions The angle between mounting hole combination in another mounting hole composite rim is equal.