A wind turbine bearing cage measuring device

Abstract

This utility model belongs to the technical field of mechanical measuring devices and discloses a wind turbine bearing cage measuring device, including a base and a lifting seat slidably connected above the base. A rotating seat is rotatably connected to the lifting seat, and a telescopic rod is slidably connected to the rotating seat. A rotating rod is rotatably connected to the telescopic rod. A measuring component is provided at the bottom of the rotating rod, and a limiting rod is elastically connected to the rotating rod. The telescopic rod is provided with a first limiting groove and a second limiting groove that are adapted to the limiting rod. This utility model replaces the traditional manual point-by-point movement of the measuring device by using the rotating seat to drive the measuring component to accurately position it to any circumferential position of the cage. This solves the time-consuming problem caused by repeated manual adjustment of the points, greatly reduces the measurement time, and improves the efficiency of batch testing.

Description

Technical Field

[0001] This utility model relates to the field of mechanical measuring device technology, and more specifically, to a wind turbine bearing cage measuring device. Background Technology

[0002] Wind turbine bearings are the core supporting components of the transmission system of wind turbine generator sets, playing a crucial role in transmitting torque and bearing complex alternating loads. The cage inside is a precision-positioned structural component, mainly used to separate and guide the rolling elements to move in an orderly manner between the inner and outer rings of the bearing. In megawatt-level wind turbine generator sets, this component directly affects the fatigue life and transmission stability of the bearing. Therefore, the spatial positional accuracy of the cage must meet high-standard geometric tolerance requirements.

[0003] In existing technologies, when measuring the cage of a wind turbine bearing, operators need to hold the measuring device and move it point by point along the circumference of the cage. In order to obtain complete contour data, the measuring points must be continuously adjusted manually and the device posture must be repeatedly calibrated, resulting in a long time consumption for each measurement action, which seriously restricts the efficiency of batch testing.

[0004] In view of this, we propose a wind turbine bearing cage measuring device. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a wind turbine bearing cage measuring device to solve the problem of low measurement efficiency of traditional wind turbine bearing cages mentioned in the background art.

[0007] 2. Technical Solution

[0008] A wind turbine bearing cage measuring device includes a base and a lifting seat slidably connected above the base. A rotating seat is rotatably connected to the lifting seat, and a telescopic rod is slidably connected to the rotating seat. A rotating rod is rotatably connected to the telescopic rod. A measuring component is provided at the bottom of the rotating rod. A limit rod is elastically connected to the rotating rod. A first limit groove and a second limit groove adapted to the limit rod are provided on the telescopic rod.

[0009] Preferably, a first electric push rod is fixedly connected inside the base, and the extended end of the first electric push rod is fixedly connected to the bottom of the lifting seat.

[0010] Preferably, a slider with a T-shaped cross-section is fixedly connected to the lifting seat, and a groove adapted to the size of the slider is provided on the base.

[0011] Preferably, a rotating block is fixedly connected to the bottom of the rotating seat, a rotating groove adapted to the size of the rotating block is opened in the lifting seat, the rotating block is rotatably connected in the rotating groove, a motor is fixedly connected in the lifting seat, a drive gear is fixedly connected to the output end of the motor, a driven gear is fixedly connected to the bottom of the rotating seat, and the drive gear meshes with the driven gear.

[0012] Preferably, a horizontally arranged second electric push rod is fixedly connected to the rotating seat, and the extended end of the second electric push rod is fixedly connected to the telescopic rod.

[0013] Preferably, the measuring assembly includes a mounting plate fixedly connected to the bottom of the rotating rod, and lighting lamps and a measuring head respectively fixedly connected to both sides of the bottom of the mounting plate.

[0014] Preferably, the first limiting groove and the second limiting groove are located on both sides of the rotating rod. When the limiting rod is located in the first limiting groove, the measuring component measures the inner ring of the cage. When the limiting rod is located in the second limiting groove, the measuring component measures the outer ring of the cage. The limiting rod is elastically connected to the rotating rod by a spring.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model achieves automated height adjustment of the measuring device through the sliding connection structure between the base and the lifting seat, in conjunction with the drive of the first electric push rod. The rotating seat on the lifting seat is driven by a motor-driven gear meshing mechanism, allowing the rotating seat to rotate 360°, thereby driving the measuring component to be accurately positioned at any circumferential position of the cage. This multi-degree-of-freedom adjustment mechanism replaces the traditional manual point-by-point movement of the measuring equipment, solving the time-consuming problem caused by repeated manual adjustment of the points, greatly reducing measurement time and improving the efficiency of batch testing.

[0018] 2. This utility model achieves one-click rapid switching of measurement modes by setting up a rotating connection between the rotating rod and the telescopic rod, combined with the elastic connection of the limiting rod and the synergistic effect of the first limiting groove and the second limiting groove. When the limiting rod is engaged in the first limiting groove, the measuring component automatically aligns with the inner ring contour of the cage. When switching to the second limiting groove, it immediately turns to measure the outer ring. This solves the cumbersome process of disassembling and flipping the workpiece or repeating calibration required by traditional methods, eliminates secondary positioning errors, and makes the inner and outer ring detection seamlessly connected, further improving detection efficiency.

[0019] 3. This utility model integrates a lighting lamp and a measuring head into a measuring component. The measuring head is fixed to the bottom of the rotating rod by a mounting plate, so that the lighting lamp can be directly projected onto the surface of the cage, eliminating blind spots. The measuring head acquires contour data in real time for measurement, ensuring that high-precision measurement can be completed efficiently even in low visibility environments. Attached Figure Description

[0020] Figure 1 This is a diagram showing the state of the outer ring of the cage when measuring according to this utility model;

[0021] Figure 2 This is a diagram showing the state of the inner ring of the cage when measuring according to this utility model;

[0022] Figure 3 This is a diagram showing the connection relationship between the lifting seat and the first electric push rod of this utility model.

[0023] Figure 4 This is a cross-sectional view of the base of this utility model;

[0024] Figure 5 This is a bottom view of the rotating base of this utility model;

[0025] Figure 6 This is a schematic diagram of the measuring component of this utility model.

[0026] The following are the labels in the diagram: 1. Base, 2. First electric push rod, 3. Lifting seat, 4. Rotating seat, 5. Slider, 6. Slide groove, 7. Motor, 8. Drive gear, 9. Driven gear, 10. Telescopic rod, 11. Second electric push rod, 12. Rotating rod, 13. Measuring component, 131. Mounting plate, 132. Lighting lamp, 133. Measuring head, 16. Limiting rod, 161. First limiting groove, 162. Second limiting groove, 17. Spring, 18. Rotating block, 181. Rotating groove. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figure 1-6 This utility model provides a technical solution:

[0031] A wind turbine bearing cage measuring device includes a base 1 and a lifting seat 3 slidably connected above the base 1. A rotating seat 4 is rotatably connected to the lifting seat 3, and a telescopic rod 10 is slidably connected to the rotating seat 4. A rotating rod 12 is rotatably connected to the telescopic rod 10. A measuring component 13 is provided at the bottom of the rotating rod 12. A limiting rod 16 is elastically connected to the rotating rod 12. The telescopic rod 10 is provided with a first limiting groove 161 and a second limiting groove 162 that are adapted to the limiting rod 16. With this configuration, the lifting seat 3 achieves vertical positioning to compensate for the height difference of the workpiece, the rotating seat 4 provides horizontal circumferential scanning, and the telescopic rod 10 completes radial distance adjustment, enabling the device to adapt to more sizes and models of cages and expanding the application range of the device.

[0032] Specifically, a first electric push rod 2 is fixedly connected inside the base 1. The extended end of the first electric push rod 2 is fixedly connected to the bottom of the lifting seat 3. A slider 5 with a T-shaped cross section is fixedly connected to the lifting seat 3. A groove 6 adapted to the size of the slider 5 is provided on the base 1. With this configuration, the lifting seat 3 is driven to move vertically along the base 1 by the first electric push rod 2. The cross section of the T-shaped slider 5 and the groove 6 interlock to maintain the straightness of the lifting trajectory and avoid positioning errors caused by the skewness of the measuring component 13.

[0033] In addition, a rotating block 18 is fixedly connected to the bottom of the rotating seat 4, and a rotating groove 181 adapted to the size of the rotating block 18 is opened in the lifting seat 3. The rotating block 18 is rotatably connected in the rotating groove 181. A motor 7 is fixedly connected in the lifting seat 3, and a drive gear 8 is fixedly connected to the output end of the motor 7. A driven gear 9 is fixedly connected to the bottom of the rotating seat 4. The drive gear 8 and the driven gear 9 are meshed. In this way, the motor 7 transmits power through the drive gear 8 meshing with the driven gear 9. The cylindrical surface of the rotating block 18 and the rotating groove 181 cooperate to form a rotating support base, realizing the uniform circular motion of the measuring component 13 around the cage and improving the measurement efficiency.

[0034] Secondly, a horizontally arranged second electric push rod 11 is fixedly connected to the rotating base 4. The extended end of the second electric push rod 11 is fixedly connected to the telescopic rod 10. This arrangement allows the measuring device to be adapted to cages of more diameters. In specific implementation, the distance between the center of the rotating rod 12 and the center of the base 1 should be the same as the radius of the cage. That is to say, the base 1 should be placed at the center of the cage.

[0035] Furthermore, the measuring assembly 13 includes a mounting plate 131 fixedly connected to the bottom of the rotating rod 12, and lighting lamps 132 and measuring head 133 respectively fixedly connected to the bottom sides of the mounting plate 131. This arrangement allows the mounting plate 131 to rigidly integrate the lighting lamps 132 and the measuring head 133 into a single unit. The light beam of the lighting lamps 132 directly covers the measuring area, eliminating blind spots. The measuring head 133 can be a mature industrial sensing module from the prior art, and can be implemented by directly purchasing commercially available equipment, such as contact probes, laser displacement sensors, and machine vision probes.

[0036] Furthermore, the first limiting groove 161 and the second limiting groove 162 are respectively located on both sides of the rotating rod 12. When the limiting rod 16 is located in the first limiting groove 161, the measuring component 13 measures the inner ring of the cage. When the limiting rod 16 is located in the second limiting groove 162, the measuring component 13 measures the outer ring of the cage. The limiting rod 16 is elastically connected to the rotating rod 12 through the spring 17. With this setting, the mechanical interlock of the limiting groove by the pre-tightening force of the spring 17 of the limiting rod 16 allows the rotating rod 12 to be accurately positioned between the inner ring measurement and the outer ring measurement stations. In other embodiments, lighting lamps 132 and measuring heads 133 can be set at both ends of the mounting plate 131. Only one rotation of the rotating seat 4 is needed to complete the measurement of the inner and outer rings. However, this setting will increase the cost of the device.

[0037] It should be noted that a sufficient distance should be maintained between the illumination lamp 132 and the measuring head 133 to prevent damage to the components caused by deviation during rotation.

[0038] Working principle:

[0039] When using this device, firstly, place the cage outside the base 1 so that the center of the cage is basically coincident with the rotation center of the rotating seat 4. Then, start the second electric push rod 11 to push the telescopic rod 10 to move radially, so that the measuring component 13 is above the cage. After that, the first electric push rod 2 retracts to lower the measuring component 13. At this time, the lighting lamp 132 and the measuring head 133 are located on both sides of the cage. Then, the motor 7 drives the gear 8 meshing mechanism to operate. The rotating seat 4 achieves 360° uniform rotation in the rotating groove 181 through the rotating block 18, driving the measuring component 13 to complete the circumferential scan. During this process, the measurement mode of the measuring component 13 is determined by the elastic locking state of the limiting rod 16. If the limiting rod 16 is inserted into the first limiting groove 161, the rotating rod 12 is fixed to the inner ring to measure the tilt angle. The lighting lamps 132 on both sides of the mounting plate 131 project shadowless light to illuminate the inner raceway. The measuring head 133 collects contour data. When the limiting rod 16 switches to the second limiting groove 162, the outer ring scan is started.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wind turbine bearing cage measuring device, characterized in that: The device includes a base (1) and a lifting seat (3) slidably connected above the base (1). A rotating seat (4) is rotatably connected to the lifting seat (3). A telescopic rod (10) is slidably connected to the rotating seat (4). A rotating rod (12) is rotatably connected to the telescopic rod (10). A measuring component (13) is provided at the bottom of the rotating rod (12). A limiting rod (16) is elastically connected to the rotating rod (12). A first limiting groove (161) and a second limiting groove (162) adapted to the limiting rod (16) are provided on the telescopic rod (10).

2. The wind turbine bearing cage measuring device as described in claim 1, characterized in that: A first electric push rod (2) is fixedly connected inside the base (1), and the extended end of the first electric push rod (2) is fixedly connected to the bottom of the lifting seat (3).

3. The wind turbine bearing cage measuring device as described in claim 2, characterized in that: A slider (5) with a T-shaped cross section is fixedly connected to the lifting seat (3), and a groove (6) adapted to the size of the slider (5) is provided on the base (1).

4. The wind turbine bearing cage measuring device as described in claim 1, characterized in that: A rotating block (18) is fixedly connected to the bottom of the rotating seat (4). A rotating groove (181) adapted to the size of the rotating block (18) is opened in the lifting seat (3). The rotating block (18) is rotatably connected in the rotating groove (181). A motor (7) is fixedly connected in the lifting seat (3). A drive gear (8) is fixedly connected to the output end of the motor (7). A driven gear (9) is fixedly connected to the bottom of the rotating seat (4). The drive gear (8) meshes with the driven gear (9).

5. The wind turbine bearing cage measuring device as described in claim 1, characterized in that: A horizontally arranged second electric push rod (11) is fixedly connected to the rotating seat (4), and the extended end of the second electric push rod (11) is fixedly connected to the telescopic rod (10).

6. The wind turbine bearing cage measuring device as described in claim 1, characterized in that: The measuring assembly (13) includes a mounting plate (131) fixedly connected to the bottom of the rotating rod (12), and lighting lamps (132) and measuring head (133) fixedly connected to both sides of the bottom of the mounting plate (131).

7. The wind turbine bearing cage measuring device as described in claim 1, characterized in that: The first limiting groove (161) and the second limiting groove (162) are located on both sides of the rotating rod (12). When the limiting rod (16) is located in the first limiting groove (161), the measuring component (13) measures the inner ring of the cage. When the limiting rod (16) is located in the second limiting groove (162), the measuring component (13) measures the outer ring of the cage. The limiting rod (16) is elastically connected to the rotating rod (12) through a spring (17).

Images