Rapid testing device for no-load test of wind driven generator

Abstract

The utility model discloses a rapid testing device for a no-load test of a wind driven generator, and the device comprises a testing pedestal which is used for positioning and fixing the generator; the prime mover support is detachably arranged on the generator end cover and used for positioning and installing a prime mover; the transmission assembly is used for connecting the generator main shaft and the prime motor output shaft for generator testing; the transmission assembly comprises a large gear and a small gear, the large gear is coaxially and fixedly connected to a main shaft of the generator, the small gear is coaxially and fixedly connected to an output shaft of the prime motor, and the large gear is meshed with the small gear; a hand wheel is detachably connected to an input shaft of the prime motor. According to the rapid testing device for the no-load test of the wind driven generator, the connection between the generator and the prime mover can be rapidly completed, and a static test item and a partial no-load dynamic test item can be completed by only one high-power generator; the time of occupying the test bench by the generator can be shortened, the overall test period is shortened, and the production turnover efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of quick test device for wind-driven generator no-load test, belong to wind-driven generator test technical field. BACKGROUND

[0002] Large wind-driven generator test is especially important in motor production process, each generator needs to be strictly tested before being put into use. Currently, the test method of large generator is to fix the generator on test bench, drive the generator to rotate by external power supply, and complete the test of generator.

[0003] In addition to completing static detection items (insulation, withstand voltage, internal resistance, inductance, capacitance, etc.), a generator test also needs to complete dynamic test, mainly including starting torque, overspeed, loss, temperature rise, power, noise, short circuit, etc. All of them are completed on test bench, which occupies a long time of test bench, and it also takes a long time to fix the generator with the bench and connect the generator with coupling;

[0004] According to existing motor test experience, static test items of generator and part of dynamic test items under no load can be completed in advance through quick connection device, therefore, the technical field urgently needs a kind of quick test device for wind-driven generator no-load test. UTILITY MODEL CONTENT

[0005] The utility model solves the problems that the existing generator test is carried out on fixed connection type bench, installation is time-consuming and laborious, and a single generator occupies a long time of test bench, and the efficiency is low.

[0006] In order to solve the above technical problems, the utility model provides a kind of quick test device for wind-driven generator no-load test, which can quickly complete the connection between generator and prime mover, and only needs a large power generator to complete static test items and part of dynamic test items under no load.

[0007] To achieve the above technical purposes and effects, the application realizes the following technical solutions:

[0008] A kind of quick test device for wind-driven generator no-load test, including test base, for the positioning of generator Fixed;Prime mover support, detachably arranged on generator end cover, for positioning and installing prime mover;Transmission assembly, for connecting generator main shaft and prime mover output shaft to carry out generator test.

[0009] Preferably, the transmission assembly includes a large gear and a small gear, the large gear is coaxially fixedly connected to the generator main shaft, and the small gear is coaxially fixedly connected to the output shaft of the prime mover, and the large gear and the small gear are engaged with each other.

[0010] Preferably, the prime mover support is provided with a plurality of waist-shaped holes for connecting the engine end cover.

[0011] Preferably, the prime mover input shaft is detachably connected with a hand wheel.

[0012] Preferably, the prime mover support is circumferentially provided with a plurality of prime mover mounting holes, and the prime mover support is provided with a backing plate, and the upper surface of the backing plate is an arc surface matched with the outer diameter of the prime mover.

[0013] Further, the prime mover support and the bottom of the backing plate are both provided with a plurality of casters.

[0014] Preferably, the top of the prime mover support is provided with an ear plate.

[0015] The quick testing device for no-load testing of a wind driven generator provided by the utility model has the following advantages:

[0016] 1. The testing device of the utility model can realize quick connection between the generator and the prime mover, and can realize test of a small-power prime mover dragging a large-power generator through gear transmission, thereby saving test cost.

[0017] 2. The testing device of the utility model can shorten the time of the generator occupying the test bench, shorten the overall test period, and improve production turnover efficiency.

[0018] 3. The testing device of the utility model can realize quick movement according to the needs of a production site. DRAWINGS

[0019] Figure 1 is a side view of the quick testing device for no-load testing of a wind driven generator of the utility model;

[0020] Figure 2 is a front view of the quick testing device for no-load testing of a wind driven generator of the utility model;

[0021] Figure 3 is a structural schematic view of the prime mover support provided by the embodiment of the utility model;

[0022] In the drawing:

[0023] 1 - test base; 2 - prime mover support; 21 - waist-shaped hole; 22 - prime mover mounting hole; 3 - transmission assembly; 31 - large gear; 32 - small gear; 4 - backing plate; 5 - caster; 6 - ear plate; 7 - hand wheel; 8 - generator; 9 - prime mover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] With reference to Figures 1-3 A quick testing device for no-load testing of a wind driven generator, comprising a testing base 1, a prime mover support 2 and a transmission assembly 3, the testing base 1 is used for fixing and erecting a generator 8 to be tested, the prime mover support 2 is detachably installed on an end cover of the generator by bolts, and is used for positioning and installing a prime mover 9, and the transmission assembly 3 can be quickly installed to connect a main shaft of the generator 8 and an output shaft of the prime mover 9. During testing operation, the prime mover 9 is driven by an external power supply, the main shaft of the generator 8 is driven to rotate through gear transmission, and the testing of the generator 8 is completed.

[0026] The transmission assembly 3 comprises a large gear 31 and a small gear 32, the large gear 31 is coaxially and fixedly installed on the main shaft of the generator 8, and the small gear 32 is coaxially and fixedly installed on the output shaft of the prime mover 9. The large gear 31 and the small gear 32 are engaged with each other. The gear and the motor output shaft can be quickly connected through a flange connection, a key groove connection and other connection modes. In the embodiment, the large gear 31 and the small gear 32 are preferably connected through a key groove, which is prior art and will not be described in detail. Through gear transmission, the small-power prime mover 9 can drive the large-power generator 8 to test, thereby saving testing cost.

[0027] With reference to Figure 2 and Figure 3 In a further embodiment, a plurality of waist-shaped holes 21 for connecting the end cover of the generator are formed on the prime mover support 2. The waist-shaped holes 21 can adjust the tooth gap between the large gear 31 and the small gear 32 when the prime mover support 2 is bolted with the end cover of the generator, thereby avoiding the problems of noise, vibration or increased wear caused by incorrect gear transmission backlash as much as possible.

[0028] A plurality of prime mover mounting holes 22 are circumferentially distributed on the prime mover support 2 to mount and fix the prime mover 9. A backing plate 4 is welded and fixed on the prime mover support 2. The upper surface of the backing plate 4 is an arc surface matched with the outer diameter of the prime mover 9 to position and support the prime mover 9, thereby making the installation of the prime mover 9 more convenient and fast, and the testing process more stable.

[0029] Multiple casters 5 are installed at the bottom of the prime mover bracket 2 and the pad 4, so that the prime mover bracket 2 and prime mover 9 can be moved quickly according to the needs of the production site. The top of the prime mover bracket 2 is welded and fixed with a lifting lug plate 6, so as to facilitate the hoisting of the prime mover bracket 2 and prime mover 9 as a whole, which facilitates the connection with the engine end cover and saves manpower.

[0030] Reference Figure 1 and Figure 2 In a further embodiment, a handwheel 7 is detachably fixed to the outer wall of the input shaft of the prime mover 9 by bolts. When testing the inductance of the generator 8, the generator 8 can be precisely rotated to a specified angle by rotating the handwheel 7 of the input shaft of the prime mover 9, and the corresponding data can be measured.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A rapid testing device for no-load testing of wind turbine generators, characterized in that, include: Test base (1) is used for positioning and fixing the generator (8); The prime mover bracket (2) is detachably mounted on the end cover of the generator (8) for positioning and installing the prime mover (9); the transmission assembly (3) is used to connect the main shaft of the generator (8) and the output shaft of the prime mover (9) for testing the generator (8).

2. The rapid testing device for no-load testing of a wind turbine generator as described in claim 1, characterized in that, The transmission assembly (3) includes a large gear (31) and a small gear (32). The large gear (31) is coaxially fixedly connected to the main shaft of the generator (8), and the small gear (32) is coaxially fixedly connected to the output shaft of the prime mover (9). The large gear (31) and the small gear (32) mesh with each other.

3. The rapid testing device for no-load testing of a wind turbine generator as described in claim 1, characterized in that, The prime mover bracket (2) is provided with a plurality of waist-shaped holes (21) for connecting the engine end cover.

4. The rapid testing device for no-load testing of a wind turbine generator as described in claim 1, characterized in that, A handwheel (7) is detachably connected to the input shaft of the prime mover (9).

5. The rapid testing device for no-load testing of a wind turbine generator as described in claim 1, characterized in that, The prime mover bracket (2) has multiple prime mover mounting holes (22) distributed around its circumference. A pad (4) is provided on the prime mover bracket (2), and the upper surface of the pad (4) is an arc surface that matches the outer diameter of the prime mover (9).

6. The rapid testing device for no-load testing of a wind turbine generator as described in claim 5, characterized in that, Both the prime mover bracket (2) and the pad plate (4) are equipped with multiple casters (5).

7. The rapid testing device for no-load testing of a wind turbine generator as described in claim 1, characterized in that, The prime mover bracket (2) is provided with a lifting lug plate (6) at the top.

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