Roundness detection device for gear shaft of wind driven generator

Abstract

The utility model belongs to the technical field of wind driven generators, and discloses a wind driven generator gear shaft roundness detection device, which comprises a supporting assembly used for supporting and driving a gear shaft to rotate in a friction manner and capable of adjusting the supporting distance. The supporting assembly is provided with a detection assembly which is used for contacting with the surface of a gear shaft for detection and can slidably adjust the detection position and height, and further comprises a sliding assembly which is arranged above the detection assembly and is used for slidably adjusting the pressing positions of the two ends. According to the roundness detection device for the gear shaft of the wind driven generator, through the arrangement that the two ends of the gear shaft are telescopically pressed downwards, the pressing and fixing effect on the gear shaft is improved, and the situation that the detection precision is affected by jumping of the gear shaft is avoided; the gear shaft is elastically clamped through telescopic pressing and front-back sliding at the two ends, so that the gear shaft is prevented from being damaged when the jumping force is too large; the arrangement of pressing positions at the two ends is adjusted in a sliding mode to adapt to gear shafts with different lengths.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind generators, in particular to a roundness detection device for a gear shaft of a wind generator. Background Art

[0002] A wind turbine is a power machine that converts wind energy into mechanical energy, including a gearbox, blades, a generator and a base assembly. The gearbox transmits the power generated by the wind wheel under the action of wind to the generator and makes it obtain a corresponding rotation speed. There is a set of gear reduction mechanisms in the gearbox to achieve speed change; the gear shaft is a mechanical part that supports the gear and rotates with it to transmit motion or torque. Its working stability is crucial to the gearbox, and the most direct factor affecting the quality of the gear shaft is the roundness of the gear shaft. Therefore, before connecting the gear shaft to the gear, the gear shaft needs to be tested for roundness, especially for large equipment such as wind turbines, whose gear shafts are relatively large, difficult to process, and high in manufacturing cost. It is even more necessary to test them before putting them into use.

[0003] In contrast, a Chinese patent with authorization announcement number CN220230476U discloses a roundness detection device for a gear shaft of a wind turbine, comprising a frame, on which two rotating wheels are rotatably provided, and the gear shaft is placed between the two rotating wheels; an arch rod movable in the longitudinal direction is provided above the frame, and pressure wheels are rotatably provided at both ends of the arch rod, and the pressure wheels are in contact with the outer peripheral surface of the gear shaft; a movable part is slidably mounted on the frame, and a detection gauge for detecting the roundness of the gear shaft is provided on the movable part, and the detection gauge can move along the axial direction of the rotating shaft and pass through the arch rod under the drive of the movable part.

[0004] The above patent only presses the gear shaft from the middle position, which has a poor pressing effect on the entire gear shaft. The two ends of the gear shaft are prone to jumping when rotating, which affects the detection accuracy. Therefore, a new device needs to be designed. Utility Model Content

[0005] The utility model aims to provide a device for detecting the roundness of a gear shaft of a wind turbine generator to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wind turbine gear shaft roundness detection device, comprising a support assembly for supporting and frictionally driving the gear shaft to rotate and capable of adjusting the support spacing, a detection assembly for contacting the surface of the gear shaft for detection and capable of sliding to adjust the detection position and height, and a sliding assembly for slidingly adjusting the clamping position at both ends arranged above the detection assembly, two clamping assemblies for telescopically pressing down the gear shaft at both ends and capable of sliding back and forth to elastically clamp the gear shaft symmetrically mounted on both sides of the sliding assembly;

[0008] The clamping assembly includes an electric push rod, a clamping frame is installed under the electric push rod, a second slide bar is installed on the clamping frame, two slide plates are symmetrically installed on the second slide bar, the slide plates are slidably connected to the clamping frame, a spring is arranged between the slide plates and the clamping frame, and a roller is installed at the bottom of the slide plate.

[0009] Furthermore: the support assembly includes a support plate, two limit rods are symmetrically arranged on both sides of the support plate, a forward and reverse threaded screw is arranged between the two limit rods, an adjustment motor is installed in front of the forward and reverse threaded screw, support rollers and friction rollers are symmetrically installed on the forward and reverse threaded screw, and a drive motor is installed on one side of the friction roller.

[0010] Furthermore, the detection assembly includes a cross bar, two vertical bars are symmetrically arranged at both ends of the cross bar, the cross bar is slidably connected to the vertical bars, a sliding sleeve is slidably installed on the cross bar, and a detection probe is arranged under the sliding sleeve.

[0011] Furthermore: the sliding assembly includes two support frames symmetrically arranged on both sides, two first sliding rods are symmetrically arranged front and back between the two support frames, two sliding platforms are symmetrically arranged on both sides of the two first sliding rods, and the sliding platforms are slidably connected to the first sliding rods.

[0012] Furthermore: the bottoms of the two skateboards are inclined toward each other, and the inclination angle is forty-five degrees.

[0013] Furthermore: the support roller and the friction roller are both slidably connected to the support plate.

[0014] Furthermore: the cross-section of the cross bar is square.

[0015] Compared with the prior art, the beneficial effects are:

[0016] The setting of the gear shaft being retracted and pressed down at both ends improves the pressing and fixing effect of the gear shaft, and avoids the gear shaft beating affecting the detection accuracy;

[0017] The gear shaft is elastically clamped by the two ends of the gear shaft, which is stretched downward and slid forward and backward to avoid damage to the gear shaft when the jumping force is too large.

[0018] The setting of the clamping position at both ends is adjusted by sliding to adapt to gear shafts of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a wind turbine gear shaft roundness detection device described in the utility model;

[0020] Figure 2 It is an axonometric diagram of a support assembly of a wind turbine gear shaft roundness detection device according to the utility model;

[0021] Figure 3 It is a front view of a detection component of a wind turbine gear shaft roundness detection device according to the utility model;

[0022] Figure 4 It is an axonometric diagram of a sliding component of a wind turbine gear shaft roundness detection device described in the utility model;

[0023] Figure 5 It is a right view of a clamping assembly of a wind turbine gear shaft roundness detection device described in the utility model.

[0024] In the accompanying drawings, 101, support plate; 102, limit rod; 103, forward and reverse threaded screw; 104, adjustment motor; 105, support roller; 106, friction roller; 107, drive motor; 201, cross bar; 202, vertical bar; 203, sliding sleeve; 204, detection probe; 301, support frame; 302, first sliding bar; 303, sliding table; 401, electric push rod; 402, clamping frame; 403, second sliding bar; 404, slide plate; 405, spring; 406, roller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 A wind turbine gear shaft roundness detection device includes a support component for supporting and frictionally driving the gear shaft to rotate and having an adjustable support spacing, a detection component for contacting the surface of the gear shaft for detection and slidably adjusting the detection position and height is arranged on the support component, and also includes a sliding component arranged above the detection component for slidably adjusting the clamping position at both ends, and two clamping components for telescopically pressing down the gear shaft at both ends and being able to slide back and forth to elastically clamp the gear shaft are symmetrically installed on both sides of the sliding component.

[0027] In this embodiment: the support assembly includes a support plate 101, two limit rods 102 are symmetrically arranged on both sides of the support plate 101, a positive and negative threaded screw rod 103 is arranged between the two limit rods 102, an adjusting motor 104 is installed in front of the positive and negative threaded screw rod 103, and a support roller 105 and a friction roller 106 are symmetrically installed on the positive and negative threaded screw rod 103. A driving motor 107 is installed on one side of the friction roller 106. The support roller 105 and the friction roller 106 are both slidably connected to the support plate 101, so that the support plate 101 supports the adjusting motor 104 to drive the positive and negative threaded screw rod 103 to rotate and push the friction roller 106 and the support roller 105 to move back to back along the limit rod 102 until the gear shaft can be placed flat between the support roller 105 and the friction roller 106, so as to adjust the support spacing. After the adjustment is completed, the driving motor 107 drives the friction roller 106 to rotate and drives the gear shaft to rotate through friction for detection;

[0028] In this embodiment: the detection assembly includes a cross bar 201, two vertical bars 202 are symmetrically arranged at both ends of the cross bar 201, the cross bar 201 is slidably connected with the vertical bars 202, a sliding sleeve 203 is slidably installed on the cross bar 201, and a detection probe 204 is arranged below the sliding sleeve 203. The cross bar 201 has a square cross-sectional shape. After the gear shaft is placed flat between the support roller 105 and the friction roller 106, the cross bar 201 is slid up and down along the vertical bar 202, so that the cross bar 201 drives the detection probe 204 to contact the surface of the gear shaft through the sliding sleeve 203, and then the gear shaft is rotated to perform roundness detection. After one-point detection is completed, the sliding sleeve 203 drives the detection probe 204 to slide along the cross bar 201, so as to perform multi-point detection;

[0029] In this embodiment: the sliding assembly includes two support frames 301 symmetrically arranged on both sides, two first slide bars 302 are symmetrically arranged front and back between the two support frames 301, two slide tables 303 are symmetrically arranged on both sides of the two first slide bars 302, the slide tables 303 are slidably connected to the first slide bars 302, and the slide tables 303 drive the two clamping assemblies to move along the first slide bars 302 under the support of the support frames 301 to adjust the clamping spacing;

[0030] In this embodiment: the clamping assembly includes an electric push rod 401, a clamping frame 402 is installed below the electric push rod 401, a second slide bar 403 is installed on the clamping frame 402, two slide plates 404 are symmetrically installed on the second slide bar 403, the slide plates 404 are slidably connected to the clamping frame 402, a spring 405 is arranged between the slide plates 404 and the clamping frame 402, and a roller 406 is installed at the bottom of the slide plate 404. The bottoms of the two slide plates 404 are inclined to each other, and the inclination angle is forty-five degrees. The electric push rod 401 extends to drive the clamping frame 402 to move downward, and the clamping frame 402 is driven by the slide plate 404 to roll and clamp the gear shaft from the front and back sides. In this process, the surface of the gear shaft will squeeze the roller 406 on the front and back sides, so that the roller 406 drives the two slide plates 404 to face each other and squeeze the spring 405 along the second slide bar 403, and the gear shaft is elastically compressed while changing the clamping distance between the front and back sides.

[0031] Working principle: Before testing, the support plate 101 supports the adjustment motor 104 to drive the forward and reverse threaded screw 103 to rotate and push the friction roller 106 and the support roller 105 to move oppositely along the limit rod 102 until the gear shaft can be placed flat between the support roller 105 and the friction roller 106; after the gear shaft is placed flat between the support roller 105 and the friction roller 106, the cross bar 201 is slid up and down along the vertical rod 202, so that the cross bar 201 drives the detection probe 204 to contact the surface of the gear shaft through the sliding sleeve 203, and then the slide 303 drives the two clamping assemblies to move to the two ends of the gear shaft along the first slide rod 302 under the support of the support frame 301, and the electric push rod 401 is extended to drive the pressure The tightening frame 402 moves downward, and the pressing frame 402 is driven by the slide plate 404 to roll and press the gear shaft from the front and rear sides. During this process, the surface of the gear shaft will squeeze the rollers 406 on the front and rear sides, so that the rollers 406 drive the two slide plates 404 to face each other and squeeze the spring 405 along the second slide bar 403, and elastically press the gear shaft while changing the pressing distance between the front and rear sides; after the gear shaft is fixed, the driving motor 107 drives the friction roller 106 to rotate and drives the gear shaft to rotate through friction, so that the detection probe 204 performs roundness detection on the surface of the gear shaft. After one-point detection is completed, the sliding sleeve 203 drives the detection probe 204 to slide along the cross bar 201, so as to perform multi-point detection.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine gear shaft roundness detection device, comprising a support assembly for supporting and frictionally driving the gear shaft to rotate and having an adjustable support spacing, wherein the support assembly is provided with a detection assembly for contacting the gear shaft surface for detection and being able to slide to adjust the detection position and height, characterized in that: It also includes a sliding assembly arranged above the detection assembly for slidingly adjusting the clamping position of both ends, and two clamping assemblies are symmetrically installed on both sides of the sliding assembly for telescopically pressing down the gear shaft at both ends and being able to slide back and forth to elastically clamp the gear shaft; The clamping assembly comprises an electric push rod (401), a clamping frame (402) is installed below the electric push rod (401), a second slide bar (403) is installed on the clamping frame (402), two slide plates (404) are symmetrically installed on the second slide bar (403), the slide plates (404) are slidably connected to the clamping frame (402), a spring (405) is arranged between the slide plate (404) and the clamping frame (402), and a roller (406) is installed at the bottom of the slide plate (404).

2. A wind turbine gear shaft roundness detection device according to claim 1, characterized in that: The support assembly comprises a support plate (101), two limit rods (102) are symmetrically arranged on both sides of the support plate (101), a positive and negative threaded screw rod (103) is arranged between the two limit rods (102), an adjustment motor (104) is installed in front of the positive and negative threaded screw rod (103), a support roller (105) and a friction roller (106) are symmetrically installed on the positive and negative threaded screw rod (103), and a driving motor (107) is installed on one side of the friction roller (106).

3. A wind turbine gear shaft roundness detection device according to claim 1, characterized in that: The detection assembly comprises a cross bar (201), two vertical bars (202) are symmetrically arranged at both ends of the cross bar (201), the cross bar (201) is slidably connected to the vertical bars (202), a sliding sleeve (203) is slidably mounted on the cross bar (201), and a detection probe (204) is arranged below the sliding sleeve (203).

4. A wind turbine gear shaft roundness detection device according to claim 1, characterized in that: The sliding assembly comprises two support frames (301) symmetrically arranged on both sides, two first sliding rods (302) are symmetrically arranged front and back between the two support frames (301), two sliding platforms (303) are symmetrically arranged on both sides of the two first sliding rods (302), and the sliding platforms (303) are slidably connected to the first sliding rods (302).

5. The roundness detection device for a gear shaft of a wind turbine generator according to claim 1, characterized in that: The bottoms of the two slide plates (404) are inclined toward each other, and the inclination angle is forty-five degrees.

6. A wind turbine gear shaft roundness detection device according to claim 2, characterized in that: The support roller (105) and the friction roller (106) are both slidably connected to the support plate (101).

7. A wind turbine gear shaft roundness detection device according to claim 3, characterized in that: The cross-section of the cross bar (201) is square.

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