CN201803849U - Elastic connecting device for test of wind power gearboxes - Google Patents

Abstract

The utility model discloses an elastic connection device for a wind power gearbox test, comprising: an integral gear box test bracket (102) supporting two wind power gear boxes, and an outer flower fixed on the input flanges of the two wind power gear boxes The key and the spline sleeve matched with the two external splines, the gear box test bracket and the wind power gearbox are connected through the first elastic bushing and the connecting bolt, and the first elastic bush is buried on the gear box test bracket or the wind power gearbox, One end of the connecting bolt is positioned by the first elastic bushing, and the other end is screwed on the wind power gearbox or the gearbox test bracket. The utility model adopts the first elastic bushing and connecting bolts to connect the gear box test bracket and the wind power gear box. This connection method reduces the alignment requirements of the two test wind power gear boxes, improves the test efficiency, and the gear box and the gear The use of the elastic connection of the gearbox test stand can absorb the shock transmitted to the gearbox test stand and reduce the noise.

Description

An elastic connection device for wind power gearbox test

technical field

The utility model relates to the technical field of wind power gearbox tests, in particular to an elastic connection device for wind power gearbox tests.

Background technique

With the rapid development of the global wind power industry, the product quality of wind turbines has attracted more and more attention, especially the wind power gearbox, which is an important component of wind turbines. The type test whether it can meet the design requirements and the factory test to check the quality of the product have become an important link in the production of wind power gearbox manufacturers. Therefore, whether the test device design is reasonable or not has an important impact on product quality evaluation and test efficiency.

In the past, wind power gearboxes were mostly elastically supported during testing, and the connection with the test bracket during the test was mostly rigid. Although spline sleeves are also used for the connection of the input end of the gearbox, this is not the case for the two gears tested at the same time. There are still high requirements for the alignment of the box, so the alignment during the test has become an important factor affecting the efficiency of the test. The existing test connection method is shown in Figure 1, the gear box test bracket 4 is separated, and the connection between the gear box 1 and its gear box test bracket 4 is a rigid connection. The connection between the two gear boxes adopts a spline connection, and the transmission is realized by the spline engagement of the external spline 2 and the spline sleeve 3 . Although spline connection is used in this connection method, the gearbox test bracket 4 of the gearbox is separated, and the alignment of the two gearboxes during the test is still a difficult problem.

The improved test connection method is shown in Figure 2. The connection between the gearbox 1 and its gearbox test bracket 4 is rigid, the gearbox test bracket 4 is integral, and the connection between the two gearboxes is splined. , The external spline 2 and the spline sleeve 3 are engaged to realize the transmission through the spline engagement. The gear box test bracket 4 of this connection mode is integral and the input end of the gear box is connected by a spline, which brings great convenience to the alignment during the test process, but the manufacturing error of the test tooling and the workshop test bench are considered. Due to the error caused by the position arrangement, it is still difficult to align the test device.

Although the current test connection method has been continuously improved, the alignment of the two wind power gearboxes during the layout of the test bench is still the main factor affecting the test efficiency. This will not only bring certain difficulties to the workshop workers, but also affect the company's production. out, reducing production efficiency.

Utility model content

In view of this, the utility model provides an elastic connection device for a wind power gearbox test to reduce the alignment requirements of two test wind power gearboxes and improve test efficiency.

In order to achieve the above object, the utility model provides the following technical solutions:

An elastic connection device for a wind power gearbox test, comprising: an integral gearbox test bracket supporting two wind power gearboxes, an external spline fixed on the input flanges of the two wind power gearboxes, and two external splines The matching spline sleeve, the gear box test bracket and the wind power gearbox are connected through the first elastic bushing and connecting bolts, and the first elastic bush is embedded in the gear box test bracket or the wind power gear box One end of the connecting bolt is positioned against the first elastic bushing, and the other end is screwed on the wind power gearbox or the gearbox test bracket.

Preferably, in the above elastic connecting device, the first elastic bushing specifically includes:

A mandrel, the mandrel has a through hole along its axis for the insertion of the connecting bolt, and one end of the mandrel has a limiting portion extending from the end to the surrounding;

An elastic sleeve sleeved on the outer ring of the mandrel, one end of the elastic sleeve is positioned against the limiting portion.

Preferably, in the above elastic connection device, the first elastic bushing further includes a steel sleeve sheathed on the outer ring of the elastic sleeve.

Preferably, in the above elastic connection device, the elastic sleeve is a rubber sleeve.

Preferably, in the above elastic connection device, a second elastic bush is further included, one end of the second elastic bush is connected to the external spline, and the other end is connected to the input flange.

Preferably, in the above elastic connecting device, the second elastic bushing specifically includes:

A mandrel, one end of the mandrel is provided with a bolt hole, and the other end has a limiting part extending from the end to the surrounding;

An elastic sleeve sleeved on the outer ring of the mandrel, one end of the elastic sleeve is positioned against the limiting portion.

Preferably, in the above elastic connection device, the first elastic bushing further includes a steel sleeve sheathed on the outer ring of the elastic sleeve.

Preferably, in the above elastic connection device, the elastic sleeve is a rubber sleeve.

It can be seen from the above technical scheme that the utility model connects the gear box test bracket and the wind power gear box with the first elastic bushing and connecting bolts, and this connection mode reduces the alignment requirements of the two test wind power gear boxes , which improves the test efficiency, and the use of the elastic connection between the gearbox and the gearbox test bracket can absorb the vibration transmitted to the gearbox test bracket and reduce the noise.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the connection schematic diagram during existing wind power gearbox test;

Fig. 2 is the connection schematic diagram during the test of the existing wind power gearbox with integral test support;

Fig. 3 is the connection schematic diagram during the test of the wind power gearbox provided by the embodiment of the utility model;

Fig. 4 is the schematic diagram of the elastic connection between the gear box and the gear box test bracket provided by the embodiment of the utility model;

Fig. 5 is a schematic structural diagram of the first elastic bush provided by the embodiment of the present invention;

Fig. 6 is a schematic diagram of the elastic connection of the input ends of the two test gearboxes provided by the embodiment of the utility model;

Fig. 7 is a schematic structural diagram of the second elastic bushing provided by the embodiment of the present invention.

Detailed ways

The utility model discloses an elastic connection device for a wind power gearbox test, which is used to reduce the alignment requirements of two test wind power gearboxes and improve the test efficiency.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 3-Fig. 5, Fig. 3 is the connection schematic diagram of the wind power gearbox test provided by the embodiment of the utility model; Fig. 4 is the schematic diagram of the elastic connection between the gearbox and the gearbox test bracket provided by the utility model embodiment; Fig. 5 is a schematic structural diagram of the first elastic bush provided by the embodiment of the present invention.

101 is a wind power gearbox, 102 is a gearbox test bracket, 103 is a first elastic bush, 104 is a connecting bolt, 1031 is a mandrel, 1032 is an elastic sleeve, and 1033 is a steel sleeve.

The elastic connection device for wind power gearbox 101 test provided by the utility model includes: an integral gear box test bracket 102 supporting two wind power gearboxes, external splines fixed on the input flanges of the two wind power gearboxes 101 and A spline sleeve that fits with two external splines. Wherein, the gearbox test bracket 102 is connected to the wind power gearbox 101 through a first elastic bush 103 and a connecting bolt 104 . The first elastic bushing 103 is buried on the gearbox test bracket 102 or the wind power gearbox 101, one end of the connecting bolt 104 is positioned against the first elastic bushing 103, and the other end is screwed on the wind power gearbox 101 or the gearbox test bracket 102, that is, the first elastic bushing 103 is buried on one of the gearbox test bracket 102 and the wind power gearbox 101, and the other end of the connecting bolt 104 is screwed on the gearbox test bracket 102 and On the other wind power gearbox 101 (relative to the other one where the first elastic bush 103 is set). During the test, the elastic connection between the wind power gearbox 101 and its fixing device (gearbox test bracket 102) mainly bears the gravity of the gearbox itself and the torque during the test.

In summary, the utility model uses the first elastic bushing 103 and the connecting bolt 104 to connect the gear box test bracket 102 and the wind power gear box 101. This connection method reduces the alignment requirements of the two test wind power gear boxes and improves The test efficiency is improved, and the use of the elastic connection between the gearbox and the gearbox test bracket can absorb the vibration transmitted to the gearbox test bracket and reduce the noise.

The first elastic bushing 103 provided by the present invention specifically includes: a mandrel 1031 and an elastic sleeve 1032 . Wherein, the mandrel 1031 has a through hole along its axis for the insertion of the connecting bolt 104 , and one end thereof has a limiting portion extending from the end to the surrounding, and the elastic sleeve 1032 is sheathed on the outer ring of the mandrel 1031 , one end of the elastic sleeve 1032 is positioned against the limiting portion of the mandrel 1031 . The connecting bolt 104 passes through the through hole of the mandrel 1031 of the elastic bushing 103 and is connected to the gear box test bracket 102, and the connecting bolt 104 is tightened. After the mandrel 1031 is axially stressed, the elastic 1032 sleeves will be tightened to achieve elastic connection, preferably The elastic sleeve 1032 is preferably a rubber sleeve.

The first elastic bushing 103 also includes a steel sleeve 1033 sleeved on the outer ring of the elastic sleeve 1032. The steel sleeve 1033 can prevent the elastic sleeve 1032 from wearing and tearing, and setting it on the periphery of the elastic sleeve 1032 can protect the elastic sleeve 1032 role.

Please refer to Fig. 6 and Fig. 7. Fig. 6 is a schematic diagram of the elastic connection of the input ends of the two test gearboxes provided by the embodiment of the utility model; Fig. 7 is a schematic diagram of the structure of the second elastic bush provided by the embodiment of the utility model.

Among them, 201 is the wind power gearbox, 202 is the input flange, 203 is the external spline, 204 is the spline sleeve, 205 is the baffle, 206 is the bolt, 207 is the second elastic bushing, 2071 is the mandrel, 2072 is Elastic sleeve, 2073 is a steel sleeve.

The elastic connecting device provided by the utility model also includes a second elastic bushing 207 arranged at the input end of the wind power gearbox 201, one end of the second elastic bushing is connected to the external spline 203, and the other end is connected to the input on flange 202. During the test, the elastic connection at the input ends of the two wind power gearboxes 201 mainly transmits torque and bears the weight of the connection device.

The second elastic bushing 207 is axially preloaded through the bolt 206 and the baffle plate 205 , so that the rubber bushing is in a tensioned state, and then connected through the splined bushing 204 . Wherein, the second elastic bushing 207 specifically includes: a mandrel 2071 and an elastic sleeve 2072 . One end of the mandrel 2071 is provided with a bolt hole, and the other end has a limiting portion extending from the end to the surrounding. The elastic sleeve 2072 is sleeved on the outer ring of the mandrel 2071, and one end of the elastic sleeve 2072 is close to the core. The limit portion of the shaft 2071 is positioned. The elastic sleeve 2072 is preferably a rubber sleeve.

The second elastic bushing 207 also includes a steel sleeve 2073 sleeved on the outer ring of the elastic sleeve 2072. The steel sleeve 2073 can prevent the elastic sleeve 2072 from wearing and tearing, and setting it on the periphery of the elastic sleeve 2072 can protect the elastic sleeve 2072 role.

As shown in Figure 3, the elastic bushing provided by the utility model has two places (A, B), the first place (A) is arranged between the wind power gearbox and its test support, and the elasticity between the wind power gearbox and its test support During the test, the bushing mainly bears the gravity of the gearbox itself and the torque during the test; the second place (B) is set at the input ends of the two wind power gearboxes, and the elastic bushes at the input ends of the two wind power gearboxes mainly transmit Torque and bear the weight of the connecting device.

In summary, the utility model not only adopts an elastic connection method at the connection between the wind power gearbox and its test bracket, but also adopts a combined connection method of elastic connection and spline sleeve at the input ends of the two wind power gearboxes. The connection method reduces the alignment requirements of the two wind power gearboxes and improves the test efficiency, and the use of the elastic connection between the gearbox and its fixing device can absorb the vibration transmitted to the gearbox bracket and reduce the noise.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. An elastic connection device for wind power gearbox test, comprising: an integral gear box test support (102) supporting two wind power gearboxes, an external flower fixed on the input flanges of the two wind power gearboxes (101) key and a spline sleeve cooperating with two external splines, it is characterized in that the gearbox test bracket (102) and the wind power gearbox (101) pass through the first elastic bushing (103) and the connecting bolt (104 ) connection, the first elastic bushing (103) is buried on the gear box test bracket (102) or the wind power gearbox (101), and one end of the connecting bolt (104) rests on the first elastic The bushing (103) is positioned, and the other end is screwed on the wind power gearbox (101) or the gearbox test bracket (102). 2. The elastic connecting device according to claim 1, characterized in that, the first elastic bushing (103) specifically comprises: A mandrel (1031), the mandrel (1031) has a through hole along its axis for the insertion of the connecting bolt (104), and one end of the mandrel has a limiting portion extending from the end to the surrounding; An elastic sleeve (1032) sleeved on the outer ring of the mandrel, one end of the elastic sleeve (1032) is positioned against the limiting portion. 3. The elastic connecting device according to claim 2, characterized in that, the first elastic bushing (103) further comprises a steel sleeve (1033) sheathed on the outer ring of the elastic sleeve (1032). 4. The elastic connecting device according to claim 2, characterized in that, the elastic sleeve (1032) is a rubber sleeve. 5. The elastic connecting device according to claim 1, further comprising a second elastic bushing (207), one end of the second elastic bushing (207) is connected to the external spline (203) , and the other end is connected to the input flange (202). 6. The elastic connecting device according to claim 5, characterized in that, the second elastic bushing (207) specifically comprises: A mandrel (2071), one end of the mandrel (2071) is provided with a bolt hole, and the other end has a limiting portion extending from the end to the surrounding; An elastic sleeve (2072) sleeved on the outer ring of the mandrel, one end of the elastic sleeve (2072) is positioned against the limiting portion. 7. The elastic connection device according to claim 5, characterized in that, the first elastic bushing (207) further comprises a steel sleeve (2073) sleeved on the outer ring of the elastic sleeve (2072). 8. The elastic connecting device according to claim 6, characterized in that, the elastic sleeve (2072) is a rubber sleeve.

Images