CN220230476U - Roundness detection device for gear shaft of wind driven generator - Google Patents

Abstract

The utility model discloses a roundness detection device for a gear shaft of a wind driven generator, which comprises a frame, wherein two rotating wheels are rotatably arranged on the frame, the gear shaft is arranged between the two rotating wheels, an arched rod which can move longitudinally is arranged above the frame, pinch rollers are rotatably arranged at two ends of the arched rod, the pinch rollers are contacted with the outer peripheral surface of the gear shaft, a movable part is slidably arranged on the frame, a detection meter for detecting the roundness of the gear shaft is arranged on the movable part, and the detection meter can move along the axial direction of a rotating shaft and pass through the arched rod under the drive of the movable part. According to the roundness detection device, the gear shafts are limited from two sides by arranging the two pressing wheels, so that the rotation stability of the gear shafts is further improved, the roundness detection can be carried out on the other sides of the gear shafts after the detection meter passes through the arched rod, the shutdown operation is not needed, and the working efficiency is high.

Description

Roundness detection device for gear shaft of wind driven generator

Technical Field

The utility model relates to the technical field of wind driven generator processing, in particular to a roundness detection device for a gear shaft of a wind driven generator.

Background

The wind driven generator is a power machine for converting wind energy into mechanical energy and comprises a gear box, blades, a generator and a base assembly, wherein the gear box is used for transmitting power generated by a wind wheel under the action of wind power to the generator and obtaining corresponding rotating speed, and a set of gear reduction mechanism is arranged in the gear box so as to realize speed change. The gear shaft is used as a mechanical part for supporting the gear and rotating together with the gear to transmit motion or torque, the working stability of the gear shaft is crucial to the gear box, and the most direct factor affecting the quality of the gear shaft is the roundness of the gear shaft, so that the roundness detection needs to be carried out on the gear shaft before the gear shaft is connected with the gear, and especially for large-scale equipment such as a wind driven generator, the gear shaft is relatively large, the processing difficulty is high, the manufacturing cost is high, and the detection is more necessary before the gear shaft is put into use.

The common mode for detecting the roundness of the gear shaft is that the gear shaft to be detected is driven to rotate, then the surface of the gear shaft is subjected to surface marking detection, and whether the roundness of the gear shaft meets the requirement is judged through the deflection information of a pointer. At present, there are two modes of driving the gear shaft to rotate, one mode is to fix one end of the gear shaft on the motor output shaft, the other end of the gear shaft is supported through the tip cone, the operation of connecting the gear shaft on the motor output shaft in the mode is relatively troublesome, and a taper hole for being matched with the tip cone is required to be formed in the center of the end part of the gear shaft, and structural strength is reduced when the gear shaft is perforated, so that normal use of the gear shaft is affected. In another mode, see the detection device for roundness of the balance shaft of the automobile disclosed in Chinese patent publication No. CN216448864U, in the scheme, a workpiece to be detected is placed between two rotating wheels, the workpiece is driven to rotate under the rotation action of the rotating wheels, and in order to prevent jumping, a limiting roller is arranged at the top of the workpiece, and when the detection device is used, the roundness of the workpiece is detected through a measuring meter. In this patent scheme, because spacing gyro wheel sets up at the top of work piece periphery, it can block that the measuring table from following work piece axial displacement for be located the spacing gyro wheel on the work piece and keep away from one side of measuring table and can't be detected, and if detect the opposite side again after passing the adjustment direction, then need shut down the operation, can increase work load certainly, work efficiency is not high.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: in the prior art, a limiting roller used for limiting a gear shaft can prevent the movement of a measuring meter so as to influence the roundness detection of the whole gear shaft, and based on the device, the utility model provides the roundness detection device for the gear shaft of the wind driven generator, which can detect the roundness of the whole gear shaft without stopping the wind driven generator.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a aerogenerator gear shaft circularity detection device, includes the frame, rotationally be equipped with two swiveling wheels in the frame, the gear shaft is placed two between the swiveling wheels, the top of frame is provided with along vertically mobilizable arch pole, the both ends of arch pole all rotationally are equipped with the pinch roller, pinch roller and the outer peripheral face contact of gear shaft, install the moving part in the frame slidable, be provided with the detection table that is used for detecting gear shaft circularity on the moving part, the detection table can be in under the drive of moving part along the axial displacement of rotation axis and pass the arch pole.

Further, the arch-shaped rod comprises a fixed rod and movable rods which are respectively arranged at two opposite ends of the fixed rod in a sliding mode, the fixed rod is of a straight rod-shaped structure, the movable rod is of a C-shaped structure, and the lower end of one movable rod is correspondingly and rotatably provided with one pressing wheel.

Further, a square slot for the movable rod to be inserted is formed in the fixed rod, a locking bolt is connected to the side wall of the fixed rod in a threaded mode, and one end of the locking bolt can extend into the square slot and abuts against the side wall of the movable rod.

Further, the movable part is of an arch structure and is erected outside the two rotating wheels, an L-shaped rod is arranged on the movable part, a longitudinal rod of the L-shaped rod is longitudinally and slidably arranged on the movable part, a cross rod of the L-shaped rod is parallel to the rotating wheels, and the detection meter is arranged on the cross rod of the L-shaped rod.

Further, the top fixedly connected with roof of frame, be provided with the telescopic link on the roof, the upper end of telescopic link with roof fixed connection, the arch pole with the lower extreme fixed connection of telescopic link.

Further, the telescopic rod comprises a connecting rod connected to the lower surface of the top plate and a free rod slidably arranged at the bottom of the connecting rod, and a fixed rod of the arched rod is fixedly connected with the lower end of the free rod.

Further, the free rod is slidably inserted into the bottom of the connecting rod, a fixing bolt is connected to the side wall of the connecting rod in a threaded mode, and one end of the fixing bolt extends into the cavity of the connecting rod and abuts against the free rod.

Further, the frame includes two backup pads that set up relatively, the swiveling wheel rotationally locates two between the backup pad, one of them be equipped with drive assembly in the backup pad, drive assembly is including installing motor in the backup pad, be equipped with the action wheel on the output shaft of motor, it with one of them swiveling wheel fixed connection, another be equipped with from the driving wheel on the swiveling wheel, the action wheel with from the outside common cover of driving wheel is equipped with the drive belt.

The beneficial effects of the utility model are as follows: through setting up the arch pole to install the pinch roller respectively at the both ends of arch pole, make the pinch roller can follow the both sides of gear shaft and carry out spacingly to the gear shaft, improved gear shaft pivoted stability, effectively prevented that the gear shaft from taking place the condition of beating easily, simultaneously, the space between the arch pole can supply the detecting table to pass behind the arch pole and carry out roundness detection to the opposite side of gear shaft, need not to shut down and adjust the direction of gear shaft, alleviateed inspector's work load greatly, improved work efficiency.

Drawings

The utility model is further described below with reference to the drawings and examples.

FIG. 1 is a perspective view of a roundness detection apparatus for a gear shaft of a wind turbine according to the present utility model;

FIG. 2 is a partial enlarged view of a portion A of the roundness detection apparatus for a gear shaft of the wind turbine shown in FIG. 1;

fig. 3 is a left side view of the roundness detection apparatus of the gear shaft of the wind power generator shown in fig. 1.

In the figure: 10. gear shaft, 1, frame, 11, base, 12, backup pad, 2, swiveling wheel, 3, arch pole, 31, dead lever, 311, square slot, 32, movable lever, 33, lock bolt, 4, pinch roller, 5, movable piece, 51, L shape pole, 52, spout, 6, detecting table, 7, roof, 71, telescopic link, 711, connecting rod, 712, free lever, 713, dead bolt, 8, drive assembly, 81, motor, 82, action wheel, 83, driven wheel, 84, drive belt.

Detailed Description

The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.

Referring to fig. 1-3, the present utility model provides a roundness detection device for a gear shaft of a wind driven generator, which includes a frame 1, two rotating wheels 2 rotatably mounted on the frame 1, a gap is provided between the two rotating wheels 2, and when a gear shaft 10 to be detected is placed between the two rotating wheels 2, the outer peripheral wall of the gear shaft 10 contacts with the outer peripheral wall of the rotating wheel 2, and is driven by the rotating wheels 2 to rotate together. An arched rod 3 which can move longitudinally is arranged above the frame 1, pinch rollers 4 are rotatably arranged at two ends of the arched rod 3, and the pinch rollers 4 are used for being in contact with the outer peripheral surface of a gear shaft 10. The frame 1 is slidably provided with a movable part 5, the movable part 5 is provided with a detection table 6 for detecting the roundness of the gear shaft 10, and the detection table 6 can move along the axial direction of the rotary wheel 2 and pass through the arched rod 3 under the drive of the movable part 5.

When the roundness detection device for the wind driven generator gear shaft is used, the gear shaft 10 to be detected is placed between the two rotating wheels 2, then the arched rod 3 is moved downwards, so that the two pressing wheels 4 are in contact with the outer peripheral surface of the gear shaft 10, then the gauge heads of the detection meter 6 are propped against the outer peripheral surface of the gear shaft 10, at the moment, the two rotating wheels 2 are controlled to rotate in the same direction, the gear shaft 10 can be reversely rotated under the driving of the rotating wheels 2, the pressing wheels 4 can limit the gear shaft 10, the gear shaft 10 is effectively prevented from jumping, the detection result is ensured, meanwhile, the two pressing wheels 4 can limit the gear shaft 10 from two sides of the gear shaft 10, and the limiting reliability is improved. When the gear shaft 10 rotates, a inspector can judge whether the roundness of a certain position of the gear shaft 10 meets the requirement according to the pointer change of the detection table 6. When a detector needs to detect other positions on the axial direction of the gear shaft 10, the detector 6 is driven to move only by moving the movable piece 5. When the detection end of the detection table 6 slides on the surface of the gear shaft 10, the friction force of the detection end against the gear shaft 10 is small, and the gear shaft 10 is not axially moved. In addition, the arch structure on the arch pole 3 can provide the space of dodging for the removal of detecting table 6 for detecting table 6 can pass arch pole 3 smoothly, and the detection personnel need not to stop the back and adjusts the direction alright detect the circularity everywhere of gear shaft 10, easy operation, convenient, has improved detection efficiency.

Referring to fig. 2, the arch-shaped rod 3 includes a fixed rod 31 and movable rods 32 slidably disposed at opposite ends of the fixed rod 31, the fixed rod 31 has a straight rod structure, the movable rods 32 have a substantially C-shaped structure, and a pressing wheel 4 is rotatably mounted at a lower end of one movable rod 32. When the device is used, a detector longitudinally adjusts the height of the arched rod 3 and slides the movable rod 32 along the horizontal direction to change the distance between the two pressing wheels 4, so that the pressing wheels 4 can be in contact with the peripheral surface of the gear shaft 10, and the detection requirements of the gear shafts 10 with different diameters are met. Specifically, when the diameter of the gear shaft 10 is large, the distance between the two pinch rollers 4 can be increased correspondingly; when the diameter of gear shaft 10 is small, the distance between the two pinch rollers 4 can be reduced accordingly. The pinch roller 4 is rotatably arranged on the movable rod 32, and the pinch roller 4 can rotate under the drive of the gear shaft 10, so that the friction force between the pinch roller 4 and the contact position of the gear shaft 10 is reduced.

Further, square slot 311 has all been seted up at the both ends of dead lever 31, and the upper end of movable rod 32 slidable cooperation inserts in square slot 311, simultaneously, threaded connection has lock bolt 33 on the lateral wall of dead lever 31, and lock bolt 33's one end can stretch into square slot 311 and hold with the lateral wall of movable rod 32, so, after movable rod 32 adjustment is put in place, the detectable personnel accessible screw lock bolt 33 to fix movable rod 32 extrusion on dead lever 31.

In this embodiment, a top plate 7 is fixedly connected to the upper side of the frame 1, a telescopic rod 71 is vertically arranged on the top plate 7, the upper end of the telescopic rod 71 is fixedly connected to the top plate 7, and the arch rod 3 is fixedly connected to the lower end of the telescopic rod 71. Specifically, the telescopic rod 71 includes a connecting rod 711 connected to the lower surface of the top plate 7 and a free rod 712 slidably provided at the bottom of the connecting rod 711, the free rod 712 is slidably inserted into the bottom of the connecting rod 711, the fixed rod 31 of the arch rod 3 is fixedly connected to the lower end of the free rod 712, in use, the free rod 712 moves downward under the action of its own weight so that the pinch roller 4 contacts the outer circumferential surface of the gear shaft 10, then, a fixing bolt 713 is screwed on the side wall of the connecting rod 711, and one end of the fixing bolt 713 is made to extend into the cavity of the connecting rod 711 and abut against the free rod 712, thereby pressing and fixing the free rod 712 on the connecting rod 711. In addition, the cavity of the connecting rod 711 is a directional cavity to prevent the free rod 712 from rotating relative to the connecting rod 711.

Referring again to fig. 1, the frame 1 includes a base 11 and a support plate 12 relatively fixedly connected to the base 11, the top plate 7 is fixedly connected to the base 11 through a support frame (not shown), and two rotating wheels 2 are rotatably installed between the two support plates 12. One of them is installed and is used for driving the pivoted drive assembly 8 of swiveling wheel 2 on the backup pad 12, and drive assembly 8 is including installing the motor 81 on backup pad 12, fixedly connected with action wheel 82 on the output shaft of motor 81, and the output shaft of motor 81 and one of them swiveling wheel 2 fixed connection, fixedly connected with follow driving wheel 83 on another swiveling wheel 2, and action wheel 82 and follow driving wheel 83's outside cover is equipped with drive belt 84 jointly. When the motor 81 is started in operation, one of the rotating wheels 2 is driven to rotate under the action of the motor 81, and the other rotating wheel 2 synchronously rotates in the same direction under the action of the belt transmission, so that the gear shaft 10 arranged between the two rotating wheels 2 is driven to rotate. In addition, the diameters of the driving wheel 82 and the driven wheel 83 are the same, so that the two rotating wheels 2 rotate at the same speed to ensure the stable rotation of the gear shaft 10.

The movable piece 5 is in an arch structure and is erected outside the two rotating wheels 2, two ends of the movable piece 5 are respectively and slidably connected with the sliding grooves 52 on the base 11, and the movable piece 5 moves along the axial direction of the rotating wheels 2. The middle part of moving part 5 is connected with L shape pole 51, and L shape pole 51's vertical pole and moving part 5 are connected along vertically slidable, and L shape pole 51's horizontal pole is parallel to each other with swiveling wheel 2, and detection table 6 installs the free end at L shape pole 51's horizontal pole, and during the use, through along vertical sliding vertical pole, can adjust detection table 6's height to make detection table 6's gauge head support on gear shaft 10's outer peripheral face, simultaneously, through moving part 5, can make detection table 6 pass arched rod 3, thereby can also carry out roundness detection to gear shaft 10's opposite side under the circumstances of not shutting down. The position between the movable member 5 and the base 11 and the position between the L-shaped rod 51 and the movable member 5 are adjusted to be in place, and then fixed by bolts.

According to the roundness detection device for the gear shaft of the wind driven generator, the arch-shaped rods 3 are arranged, the pinch rollers 4 are respectively arranged at the two ends of the arch-shaped rods 3, so that the pinch rollers 4 can limit the gear shaft 10 from the two sides of the gear shaft 10, the rotation stability of the gear shaft 10 is improved, the condition that the gear shaft 10 easily jumps is effectively prevented, meanwhile, the space between the arch-shaped rods 3 can be used for detecting the roundness of the other side of the gear shaft 10 after the detection meter 6 passes through the arch-shaped rods 3, the shutdown and the adjustment of the direction of the gear shaft 10 are not needed, the workload of detection personnel is greatly reduced, and the working efficiency is improved.

While the foregoing is directed to the preferred embodiment of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (8)

1. The utility model provides a aerogenerator gear shaft circularity detection device, includes the frame, rotationally be equipped with two swiveling wheels in the frame, the gear shaft is placed two between the swiveling wheel, its characterized in that: the utility model discloses a gear shaft, including frame, movable part, rotary shaft, arc pole, pinch roller, movable part, detection table, rotation axis's axial displacement and pass are all equipped with the pinch roller along vertically movable's top to the frame, the both ends of arc pole are all rotationally equipped with the pinch roller, pinch roller and the outer peripheral face contact of gear shaft, slidable installs the movable part in the frame, be provided with the detection table that is used for detecting gear shaft circularity on the movable part, the detection table can be in under the drive of movable part along the axial displacement of rotation axis and pass the arc pole.

2. The roundness detection device for a gear shaft of a wind driven generator according to claim 1, wherein: the arch-shaped rod comprises a fixed rod and movable rods which are respectively arranged at two opposite ends of the fixed rod in a sliding mode, the fixed rod is of a straight rod-shaped structure, the movable rods are of a C-shaped structure, and the lower ends of the movable rods are correspondingly and rotatably provided with the pressing wheels.

3. The roundness detection device for a gear shaft of a wind driven generator according to claim 2, wherein: the fixing rod is provided with a square slot for the movable rod to be inserted into, the side wall of the fixing rod is connected with a locking bolt in a threaded mode, and one end of the locking bolt can extend into the square slot and propped against the side wall of the movable rod.

4. The roundness detection device for a gear shaft of a wind driven generator according to claim 1, wherein: the movable part is of an arch structure and is erected outside the two rotating wheels, an L-shaped rod is arranged on the movable part, a longitudinal rod of the L-shaped rod is longitudinally and slidably arranged on the movable part, a transverse rod of the L-shaped rod is parallel to the rotating wheels, and the detection meter is arranged on the transverse rod of the L-shaped rod.

5. The roundness detection device for a gear shaft of a wind driven generator according to claim 2, wherein: the top fixedly connected with roof of frame, be provided with the telescopic link on the roof, the upper end of telescopic link with roof fixed connection, the arch pole with the lower extreme fixed connection of telescopic link.

6. The roundness detection device for a gear shaft of a wind power generator of claim 5, wherein: the telescopic rod comprises a connecting rod connected to the lower surface of the top plate and a free rod slidably arranged at the bottom of the connecting rod, and a fixed rod of the arched rod is fixedly connected with the lower end of the free rod.

7. The roundness detection device for a gear shaft of a wind power generator of claim 6, wherein: the free rod is slidably inserted into the bottom of the connecting rod, a fixing bolt is connected to the side wall of the connecting rod in a threaded mode, and one end of the fixing bolt extends into the cavity of the connecting rod and abuts against the free rod.

8. The roundness detection device for a gear shaft of a wind driven generator according to claim 1, wherein: the frame includes two backup pads that set up relatively, the swiveling wheel rotationally locates two between the backup pad, one of them be equipped with drive assembly in the backup pad, drive assembly is including installing motor in the backup pad, be equipped with the action wheel on the output shaft of motor, it with one of them swiveling wheel fixed connection, another swiveling wheel is last to be equipped with from the driving wheel, the action wheel with from the outside common cover of driving wheel is equipped with the drive belt.