CN216200357U - Structure for effectively solving abrasion of spline of wind power gear box - Google Patents

Abstract

The utility model relates to the technical field of wind power gear boxes, and discloses a structure for effectively solving the problem of spline abrasion of a wind power gear box, which comprises a driving shaft, wherein the outer wall of the driving shaft is fixedly connected with a first external spline; the first external spline, the first internal spline, the second internal spline and the second external spline are in a spiral shape, so that the contact mode of spline movement is swing contact, the existing axial float contact is replaced, the abrasion between the splines is reduced, the surfaces of the first external spline, the first internal spline, the second internal spline and the second external spline are hardened in a quenching mode, the hardness of the tooth surface of the spline is improved, the probability of failure of the tooth surface of the spline is reduced, and the service life of the spline is prolonged.

Description

Structure for effectively solving abrasion of spline of wind power gear box

Technical Field

The utility model relates to the technical field of wind power gear boxes, in particular to a structure for effectively solving the problem of spline abrasion of a wind power gear box.

Background

The wind power gear box is an important mechanical component in a wind generating set, and mainly has the function of transmitting power generated by a wind wheel under the action of wind power to a generator and enabling the generator to obtain a corresponding rotating speed.

Connection mode between inside gear of wind-powered electricity generation gear box and the axis of rotation generally all adopts splined connection, splined connection comprises internal spline and external splines, current internal spline and external splines are mostly rectangle spline and involute spline, current spline all drives the motion through the axial float contact of spline, this kind of motion can cause wearing and tearing between the spline serious, the hardness of current spline flank of tooth is not high simultaneously, break down easily in the use, influence the life of spline.

Therefore, in order to solve the problems, a structure for effectively solving the spline abrasion of the wind power gearbox is needed.

Disclosure of Invention

The utility model aims to provide a structure for effectively solving the problem of spline abrasion of a wind power gear box, and aims to solve the problems that the spline provided in the background technology is driven to move by axial float contact, so that the spline is seriously abraded, the hardness of the tooth surface of the spline is not high, the spline is easy to break down, and the service life of the spline is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: a structure for effectively solving the problem of abrasion of splines of a wind power gear box comprises a driving shaft, wherein the outer wall of the driving shaft is fixedly connected with a first external spline, the outer wall of the driving shaft is provided with a driving gear, the inner wall of the driving gear is fixedly connected with a first internal spline, the specifications of the first internal spline and the first external spline are matched, the surfaces of the first external spline and the first internal spline are hardened in a quenching mode, the outside of the driving gear is meshed with a driven gear, the inner wall of the driven gear is fixedly connected with a second internal spline, the inner wall of the driven gear is provided with a driven shaft, the outer wall of the driven shaft is fixedly connected with a second external spline, the specifications of the second external spline and the second internal spline are matched, the surfaces of the second external spline and the second internal spline are hardened in a quenching mode, the inner wall of a gear outer box is fixedly connected with a first fixing rod, one end, far away from the gear outer box, of the first fixing rod is fixedly connected with a first limiting ring, the inner wall fixedly connected with second dead lever of gear outer container, the one end fixedly connected with second spacing collar that the gear outer container was kept away from to the second dead lever.

Preferably, the two ends of the driving shaft are respectively sleeved with a first bearing, the outer wall of each first bearing is sleeved with a gear outer box, the driving shaft can rotate inside the gear outer box through the first bearings, friction between the driving shaft and the gear outer box is reduced, and the gear outer box can protect the structure inside the gear outer box.

Preferably, the driving gear is through first internal spline, first external splines connects at the outer wall of driving shaft, first external spline and first internal spline are the heliciform, the driving shaft rotates at first internal spline, can drive the driving gear and rotate under the effect of first external spline, first external spline and first internal spline are the heliciform and make the contact surface of first external spline and first internal spline be the curved surface, make the contact mode that first external spline drove the motion of first internal spline be swing contact, axial float contact has been replaced, the wearing and tearing between first external spline and the first internal spline have been reduced.

Preferably, driven gear passes through the second internal spline, the outer wall at the driven shaft is connected to the second external spline, second internal spline and second external spline are the heliciform, driven gear rotates at the second internal spline, the driven shaft can be driven under the effect of second external spline and rotate, second internal spline and second external spline are the heliciform and make the contact surface of second internal spline and second external spline be the curved surface, make the contact mode that the second internal spline drove the motion of second external spline be swing contact, axial float contact has been replaced, the wearing and tearing between second internal spline and the second external spline have been reduced.

Preferably, the both ends of driven shaft all cup joint the second bearing, and the outer wall of second bearing has cup jointed the gear outer container, makes the driven shaft can rotate in the inside of gear outer container through the second bearing to reduce the friction between driven shaft and the gear outer container.

Preferably, one side fixedly connected with connecting plate that first dead lever is close to the second spacing collar, the one end fixed connection that first spacing collar was kept away from to the connecting plate is at the outer wall of second spacing collar, first dead lever has threely, and first dead lever is the symmetric distribution in one side that the second spacing collar was kept away from at first spacing collar, the second dead lever has threely, and the second dead lever is the symmetric distribution in one side that first spacing collar was kept away from at the second spacing collar, make first spacing collar and second spacing collar by stable fixed through first spacing collar, the second dead lever, under the effect of connecting plate.

Preferably, there are two first spacing rings, and first spacing ring symmetric distribution is in the both sides of driving gear, and one side that the gear outer container is close to the driving gear contacts with the driving gear, can restrict the motion of driving gear through first spacing ring for the rotation of driving gear is more stable.

Preferably, the second spacing collar has two, and second spacing collar symmetric distribution is in driven gear's both sides, and one side that the second spacing collar is close to driven gear contacts with driven gear, can restrict driven gear's motion through the second spacing collar for driven gear's rotation is more stable.

Compared with the prior art, the utility model has the beneficial effects that: the first external spline, the first internal spline, the second internal spline and the second external spline are in a spiral shape, so that the contact mode of spline movement is swing contact, the existing axial float contact is replaced, the abrasion between the splines is reduced, the surfaces of the first external spline, the first internal spline, the second internal spline and the second external spline are hardened in a quenching mode, the hardness of the tooth surface of the spline is improved, the probability of failure of the tooth surface of the spline is reduced, and the service life of the spline is prolonged.

Drawings

FIG. 1 is a schematic view of the internal structure of the gear housing of the present invention;

FIG. 2 is a schematic cross-sectional view of the gear housing of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is a schematic view of the exploded structure inside the gear housing of the present invention;

FIG. 5 is an exploded view of the driving shaft and the driving gear of the present invention.

In the figure: 1. a drive shaft; 2. a first bearing; 3. a gear outer box; 4. a first external spline; 5. a driving gear; 6. a first internal spline; 7. a driven gear; 8. a second internal spline; 9. a second male spline; 10. a driven shaft; 11. a second bearing; 12. a first fixing lever; 13. a first spacing collar; 14. a second fixing bar; 15. a second limit ring; 16. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a structure for effectively solving spline abrasion of a wind power gearbox includes a driving shaft 1, wherein two ends of the driving shaft 1 are respectively sleeved with a first bearing 2, the outer wall of the first bearing 2 is sleeved with a gear outer box 3, the driving shaft 1 can rotate inside the gear outer box 3 through the first bearing 2, and friction between the driving shaft 1 and the gear outer box 3 is reduced, the gear outer box 3 can protect the structure inside the gear outer box 3, the outer wall of the driving shaft 1 is fixedly connected with a first external spline 4, the outer wall of the driving shaft 1 is provided with a driving gear 5, the inner wall of the driving gear 5 is fixedly connected with a first internal spline 6, the first internal spline 6 is matched with the first external spline 4 in specification, the driving gear 5 is connected with the outer wall of the driving shaft 1 through the first internal spline 6 and the first external spline 4, the first external spline 4 and the first internal spline 6 are both in spiral shape, the driving shaft 1 rotates at first internal spline 6, can drive driving gear 5 to rotate under the effect of first external spline 4, first external spline 4 and first internal spline 6 are the heliciform and make the contact surface of first external spline 4 and first internal spline 6 be the curved surface, make the contact mode that first external spline 4 drove first internal spline 6 motion be swing contact, axial float contact has been replaced, the wearing and tearing between first external spline 4 and the first internal spline 6 have been reduced, the mode hardening of quenching is all adopted on the surface of first external spline 4 and first internal spline 6, make the hardness of spline flank of tooth obtain improving, the probability of breaking down of spline flank of tooth has been reduced, the life of spline has been prolonged.

A driven gear 7 is engaged with the outside of the driving gear 5, a second internal spline 8 is fixedly connected to the inner wall of the driven gear 7, a driven shaft 10 is arranged on the inner wall of the driven gear 7, a second external spline 9 is fixedly connected to the outer wall of the driven shaft 10, the specifications of the second external spline 9 and the second internal spline 8 are matched, the driven gear 7 is connected to the outer wall of the driven shaft 10 through the second internal spline 8 and the second external spline 9, the second internal spline 8 and the second external spline 9 are both helical, the driven gear 7 can drive the driven shaft 10 to rotate under the action of the second internal spline 8 and the second external spline 9, the second internal spline 8 and the second external spline 9 are both helical, so that the contact surface of the second internal spline 8 and the second external spline 9 is a curved surface, the contact mode that the second internal spline 8 drives the second external spline 9 to move is swing contact, axial float contact is replaced, the abrasion between the second internal spline 8 and the second external spline 9 is reduced, the surfaces of the second external spline 9 and the second internal spline 8 are hardened in a quenching mode, so that the hardness of the tooth surface of the spline is improved, the probability of the failure of the tooth surface of the spline is reduced, and the service life of the spline is prolonged.

The two ends of the driven shaft 10 are respectively sleeved with a second bearing 11, the outer wall of the second bearing 11 is sleeved with a gear outer box 3, the driven shaft 10 can rotate in the gear outer box 3 through the second bearing 11, friction between the driven shaft 10 and the gear outer box 3 is reduced, the inner wall of the gear outer box 3 is fixedly connected with a first fixing rod 12, one end, far away from the gear outer box 3, of the first fixing rod 12 is fixedly connected with a first limiting ring 13, the inner wall of the gear outer box 3 is fixedly connected with a second fixing rod 14, one end, far away from the gear outer box 3, of the second fixing rod 14 is fixedly connected with a second limiting ring 15, one side, close to the second limiting ring 15, of the first fixing rod 12 is fixedly connected with a connecting plate 16, one end, far away from the first limiting ring 13, of the connecting plate 16 is fixedly connected to the outer wall of the second limiting ring 15, the number of the first fixing rods 12 is three, and the first fixing rods 12 are symmetrically distributed on one side, far away from the second limiting ring 15, of the first limiting ring 13, the number of the second fixing rods 14 is three, the second fixing rods 14 are symmetrically distributed on one side of the second limiting ring 15 far away from the first limiting ring 13, the first limiting ring 13 and the second limiting ring 15 are stably fixed under the action of the first limiting ring 13, the second fixing rods 14 and the connecting plate 16, the number of the first limiting rings 13 is two, the first limiting rings 13 are symmetrically distributed on two sides of the driving gear 5, one side of the gear outer box 3 close to the driving gear 5 is in contact with the driving gear 5, the movement of the driving gear 5 can be limited through the first limiting rings 13, the rotation of the driving gear 5 is more stable, the number of the second limiting rings 15 is two, the second limiting rings 15 are symmetrically distributed on two sides of the driven gear 7, one side of the second limiting ring 15 close to the driven gear 7 is in contact with the driven gear 7, and the movement of the driven gear 7 can be limited through the second limiting rings 15, so that the rotation of the driven gear 7 is more stabilized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an effectively solve wind-powered electricity generation gear box spline wearing and tearing structure, includes driving shaft (1), its characterized in that: the outer wall of the driving shaft (1) is fixedly connected with a first external spline (4), the outer wall of the driving shaft (1) is provided with a driving gear (5), the inner wall of the driving gear (5) is fixedly connected with a first internal spline (6), the specifications of the first internal spline (6) and the first external spline (4) are matched, the surfaces of the first external spline (4) and the first internal spline (6) are hardened in a quenching mode, the outer part of the driving gear (5) is meshed with a driven gear (7), the inner wall of the driven gear (7) is fixedly connected with a second internal spline (8), the inner wall of the driven gear (7) is provided with a driven shaft (10), the outer wall of the driven shaft (10) is fixedly connected with a second external spline (9), the specifications of the second external spline (9) and the second internal spline (8) are matched, the surfaces of the second external spline (9) and the second internal spline (8) are hardened in a quenching mode, the inner wall of the gear outer box (3) is fixedly connected with a first fixing rod (12), one end of the first fixing rod (12) far away from the gear outer box (3) is fixedly connected with a first limiting ring (13), the inner wall of the gear outer box (3) is fixedly connected with a second fixing rod (14), and the other end of the second fixing rod (14) far away from the gear outer box (3) is fixedly connected with a second limiting ring (15).

2. The structure for effectively solving the spline abrasion of the wind power gearbox according to the claim 1 is characterized in that: the two ends of the driving shaft (1) are respectively sleeved with a first bearing (2), and the outer wall of the first bearing (2) is sleeved with a gear outer box (3).

3. The structure for effectively solving the spline abrasion of the wind power gearbox according to the claim 1 is characterized in that: the driving gear (5) is connected to the outer wall of the driving shaft (1) through a first inner spline (6) and a first outer spline (4), and the first outer spline (4) and the first inner spline (6) are both in a spiral shape.

4. The structure for effectively solving the spline abrasion of the wind power gearbox according to the claim 1 is characterized in that: driven gear (7) are connected at the outer wall of driven shaft (10) through second internal spline (8), second external spline (9), and driving gear (5) and second external spline (9) are the heliciform.

5. The structure for effectively solving the spline abrasion of the wind power gearbox according to the claim 1 is characterized in that: and two ends of the driven shaft (10) are respectively sleeved with a second bearing (11), and the outer wall of the second bearing (11) is sleeved with a gear outer box (3).

6. The structure for effectively solving the spline abrasion of the wind power gearbox according to the claim 1 is characterized in that: one side of the first fixing rod (12) close to the second limiting ring (15) is fixedly connected with a connecting plate (16), and one end, far away from the first limiting ring (13), of the connecting plate (16) is fixedly connected to the outer wall of the second limiting ring (15).

7. The structure for effectively solving the spline abrasion of the wind power gearbox is characterized in that: the number of the first limiting rings (13) is two, the first limiting rings (13) are symmetrically distributed on two sides of the driving gear (5), and one side, close to the driving gear (5), of the gear outer box (3) is in contact with the driving gear (5).

8. The structure for effectively solving the spline abrasion of the wind power gearbox is characterized in that: the number of the second limiting rings (15) is two, the second limiting rings (15) are symmetrically distributed on two sides of the driven gear (7), and one side, close to the driven gear (7), of each second limiting ring (15) is in contact with the driven gear (7).

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