CN112762866B - A device for detecting the coaxiality of a main shaft of a generator and its working method - Google Patents

Abstract

The invention discloses a coaxiality detection device and a working method of a generator main shaft, comprising a detection platform, a main shaft positioning and clamping assembly, a main shaft positioning and clamping assembly, a main shaft rotation driving assembly, a CCD detection camera, and a camera horizontal driving assembly , camera vertical drive assembly and inspection frame. The coaxiality detection device of the main shaft of the generator of the present invention can fix the main shaft through the main shaft positioning and clamping assembly 1 and the main shaft positioning clamping assembly 2, and through the CCD camera, the main shaft can be rotated in the process of driving the main shaft to rotate by the main shaft rotation driving assembly. The coaxiality is detected, and different positions in the axis direction of the main shaft can be detected by the horizontal drive assembly of the camera. In this detection method, during the detection process and the movement of the adjusting device, the position change of the measurement point is recorded in time to ensure the accuracy of the detection data, so that the error of the calculated coaxiality result is relatively small and closer to the true value , to improve the accuracy of the entire detection method.

Description

A device for detecting the coaxiality of a main shaft of a generator and its working method

technical field

The invention belongs to the technical field of generator detection, and in particular relates to a coaxiality detection device of a main shaft of a generator. The invention also relates to a working method of the coaxiality detection device of the main shaft of the generator.

Background technique

A generator set is a complete set of mechanical equipment that converts other forms of energy into electrical energy. It consists of a power system, a control system, a muffler system, a shock absorption system, and an exhaust system. The power system generally includes an internal combustion engine and a generator. The power input shaft of the generator is connected coaxially.

In the assembly of the diesel generator set, the elastic coupling is installed between the diesel engine and the generator. Due to the high-speed operation of the diesel engine in the working state, the coaxiality of the diesel engine crankshaft and the generator main shaft must be ensured during installation, and the gear opening distance needs to be Adjusted to within 465mm±0.5 to facilitate the installation of the elastic coupling when the diesel engine and generator are fixed. The existing elastic coupling has no precise and effective coaxiality measurement method before installation, resulting in elastic coupling. The shaft installation is time-consuming and labor-intensive. The assembled generator set has low coaxiality, serious wear, poor power transmission efficiency, and is prone to diesel engine damage caused by sticky tiles.

However, the problem in the prior art is that when connecting the power output shaft of the internal combustion engine and the power input shaft of the generator, precise positioning and measurement are required to make the coaxiality between the two higher, so as to prevent the transmission shaft from breaking or Transmission noise problems occur, however, even after precise measurement and positioning, sometimes the perfect coaxiality cannot be achieved.

SUMMARY OF THE INVENTION

Purpose of the invention: In order to overcome the above deficiencies, the purpose of the present invention is to provide a coaxiality detection device for the main shaft of the generator, which solves the problem that the coaxiality of the internal combustion engine and the generator installation type in the existing generator is not high, resulting in transmission noise and transmission shaft. Technical issues of fatigue fracture.

Technical scheme: a coaxiality detection device of a generator main shaft, comprising a detection platform, a main shaft positioning and clamping component 1, a main shaft positioning and clamping component 2, a main shaft rotation driving component, a CCD detection camera, a camera horizontal driving component, and a camera vertical A drive assembly and a detection frame, the spindle rotation drive assembly and the detection frame are both fixedly arranged on the detection platform, the spindle positioning and clamping assembly 1 and the spindle positioning clamping assembly 2 are both arranged on the spindle rotation driving assembly, and The first spindle positioning and clamping component and the second spindle positioning and clamping component are symmetrically arranged, the spindle can be clamped between the first and second spindle positioning and clamping components, and the camera vertical drive component is arranged on the detection frame On the upper end of the camera, the camera horizontal drive assembly is connected to the camera vertical drive assembly, the CCD detection camera is connected to the camera horizontal drive assembly, and the CCD inspection camera is located between the spindle positioning and clamping assembly 1 and the spindle positioning clamping assembly 2. above.

Further, in the above-mentioned coaxiality detection device for the main shaft of the generator, the first main shaft positioning and clamping assembly and the second main shaft positioning and clamping assembly include a fixed bottom plate, a vertical support plate, a clamping claw, a clamping claw two, and a clamp. The third jaw, the fourth clamping jaw, the clamping jaw support base and the clamping jaw driving device, the fixed base plate is connected with the main shaft rotation drive assembly, the vertical support plate 1 and the clamping jaw driving device are both fixedly arranged on the fixed base plate, the said The clamping jaw support base is fixedly arranged on the vertical surface of the vertical support plate 1, one end of the clamping jaw 1, clamping jaw 2, clamping jaw 3 and clamping jaw 4 is connected with the clamping jaw driving device, and the clamping jaw 1, the clamping jaw Claw 2, Claw 3 and Claw 4 are hinged with the clamping claw support base. , Claw 3 and Claw 4 can be clamped on the outer circumference of the end of the main shaft. wavy.

Further, in the above-mentioned coaxiality detection device of the main shaft of the generator, the clamping jaw support base includes two symmetrically arranged support plates, a connecting plate, a thimble and four clamping jaw support frames. One end of the provided supporting plate 1 is fixedly connected with the vertical supporting plate 1, the connecting plate 1 is fixedly connected with the end face of the supporting plate 1 away from the vertical supporting plate 1, and the ejector pin is fixedly arranged on the connecting plate 1 away from the supporting plate 1. On the vertical end surface, the first four clamping jaw support frames are fixedly arranged on the connecting plate 1 in a circular array, and the four clamping jaw supporting frames are connected with the first clamping jaw, the second clamping jaw, and the third clamping jaw. The four claws are arranged in a one-to-one correspondence, and the first, second, third and fourth jaws are arranged in a circular array with the center of the thimble as the center of the circle, and the thimble is pressed and fitted with the end of the main shaft, The first clamping jaw support frame is provided with a clamping jaw transmission shaft 1, and the clamping jaw 1, clamping jaw 2, clamping jaw 3 and clamping jaw 4 are respectively sleeved on the corresponding clamping jaw transmission shaft 1.

Further, in the above-mentioned coaxiality detection device of the main shaft of the generator, the clamping jaw driving device includes a driving support frame, a driving motor, a motor supporting seat, a screw rod, a screw sleeve, a connecting cylinder and a clamping jaw connecting frame, and the driving device The support frame is fixed on the fixed base plate, the motor support base is fixed on the drive support frame, the drive motor is fixed on the motor support base, and the drive motor is connected with the screw rod, and the screw rod is sleeved on the screw rod one , and the screw sleeve and the screw are connected by a thread, the end of the screw sleeve away from the driving motor is fixedly connected with the connecting cylinder, the clamping jaw connecting frame is fixedly connected with the end of the connecting cylinder away from the screw sleeve, the clamping jaw one, the clamping jaw 2. One end of the third jaw and the fourth end of the jaw are respectively hinged with the connection frame of the jaw.

Further, in the above-mentioned coaxiality detection device of the main shaft of the generator, the first guide sleeve is provided on the driving support frame, the second guide sleeve is provided on the vertical support plate 1, and the first guide sleeve and the The second guide sliding sleeve is coaxially arranged along the horizontal direction, and the screw sleeve is slidably connected with the first guiding sliding sleeve and the second guiding sliding sleeve; a group of guide columns is arranged on the driving support frame, and a guide sliding plate 1 is connected to the screw sleeve. , the guide slide 1 is slidably connected with a group of guide columns.

Further, in the above-mentioned coaxiality detection device of the main shaft of the generator, the clamping jaw connection frame includes a rectangular support base and four U-shaped support clamping jaw support frames, and one end of the rectangular support base is fixedly connected to the connecting cylinder, The four U-shaped supporting jaws are fixedly arranged on the end of the rectangular support seat away from the connecting cylinder, and the four U-shaped supporting jaws and the four jaws are arranged in a one-to-one correspondence. , the second U-shaped support jaw support frame is provided with the second jaw transmission shaft, the first jaw, the second jaw, the third jaw and the four ends of the jaw are provided with waist-shaped holes, the clip The second claw drive shaft and the waist-shaped hole are rollingly connected.

Further, in the above-mentioned coaxiality detection device of the main shaft of the generator, the main shaft rotary drive assembly includes a rotary drive motor 1, a coupling, a rotary shaft 1, a driving wheel 1, a driving wheel 2, a driven wheel 1, and a driven wheel 2. , belt one, belt two, rotating shaft two, rotating shaft three, right-angle support plate one, right-angle support plate two and support bottom plate, said right-angle support plate one and right-angle support plate two are fixedly arranged on the support bottom plate, and right-angle support plate one and The two right-angle support plates are symmetrically arranged, and the first rotary drive motor is fixed on the first right-angle support plate. At both ends of the first rotating shaft, the first rotating shaft is disposed on the lower ends of the first and second right-angle support plates through bearings, and the second rotating shaft is disposed on the upper end of the first right-angle support plate through bearings. The third rotating shaft is arranged on the upper end of the right-angle support plate 2 through a bearing, and the rotating shaft 2 and the rotating shaft 3 are symmetrically arranged, the driven wheel 1 and the rotating shaft 2 are connected by a key, and the driven wheel 2 and the rotating shaft 3 are connected by a key. One set of belts is set on the first driving wheel and the first driven wheel, and the second set of belts is set on the second driving wheel and the second driven wheel. The second is connected to the third shaft.

Further, in the above-mentioned coaxiality detection device of the main shaft of the generator, the camera vertical drive assembly includes a set of vertical drive cylinders and a vertical lifting U-shaped support plate, and the set of vertical drive cylinders is arranged on the detection machine. and the piston rods of a group of vertical drive cylinders are connected to the vertical lift U-shaped support plate, the camera horizontal drive assembly is connected to the vertical lift U-shaped support plate, and the vertical lift U-shaped support plate is close to the detection Both sides of the upright column of the rack are provided with vertical guide sliders, the upright column of the detection rack is provided with a vertical guide chute, and the vertical guide slider and the vertical guide chute are slidably connected.

Further, in the above-mentioned coaxiality detection device of the main shaft of the generator, the horizontal drive assembly of the camera includes a horizontal drive motor, a transport support base, two guide rails, a guide slide plate, a screw rod, a set of sliders, and a horizontal support. Plate 2, the transfer support base is fixedly connected with the vertical lifting U-shaped support plate, the horizontal drive motor is fixedly arranged on the transfer support base, and the horizontal drive motor is connected with the second screw, and the second screw is set through the screw support base On the transport support base, the set of slide blocks is set on the second screw rod, the guide slide block 2 is connected with one of a set of slide block 1, and the guide slide block 2 is set on the screw rod two, the horizontal The second support plate is fixedly connected with a group of sliders 1 and guide slide 2, the CCD detection camera is fixedly arranged on the horizontal support plate 2, the two guide rails 1 and the screw rod 2 are arranged in parallel, and the two guide rails 1 are located on the screw rods respectively. On both sides of the second, the second guide slide plate and the two guide rails are slidably connected.

A working method of a coaxiality detection device for a generator main shaft of the present invention comprises the following steps:

S1. Place the spindle between the spindle positioning and clamping component 1 and the spindle positioning and clamping component 2, and the two ends of the spindle are respectively located on the first and second clamping jaws of the spindle positioning and clamping component. , between the third jaw and the fourth jaw;

S2. Spindle clamping: Spindle positioning and clamping component 1 and spindle positioning and clamping component 2 are activated;

S3. The drive motor starts to drive the first screw to rotate, and the rotation of the first screw drives the screw sleeve to move in the horizontal direction;

S4. The screw sleeve drives the clamping jaw connecting frame to move away from the main shaft through the connecting cylinder;

S5. During the movement of the gripper connecting frame, the gripper drive shaft 2 is pulled to roll along the waist-shaped hole, and the gripper drive shaft 2 drives gripper gripper 1, gripper gripper 2, gripper gripper 3 and gripper gripper 4 to drive around gripper jaws respectively. axis one rotation;

S6, the first gripper, the second gripper, the third gripper and the fourth gripper rotate to the outer wall of the spindle, and the spindle is clamped;

S7. The horizontal drive motor is started, and the drive screw rotates once, so that the second horizontal support plate is at one end of the main shaft;

S8. The piston rods of a group of vertical driving cylinders extend, push the vertical lifting U-shaped support plate to rise and fall along the vertical direction, and adjust the CCD detection camera to a certain distance from the outer wall of the main shaft;

S9. Once the rotary drive motor is started, the rotary shaft is driven to rotate, and the rotary shaft 1 simultaneously drives the driving wheel 1 and the driving wheel 2 to rotate;

S10, the driving wheel 1 drives the driven wheel 1 to rotate through the belt 1, and the driving wheel 2 drives the driven wheel 2 to rotate through the belt 2, so that the driven wheel 1 and the driven wheel 2 rotate synchronously;

S11. The synchronous rotation of the driven wheel 1 and the driven wheel 2 makes the spindle positioning and clamping component 1 and the spindle positioning and clamping component 2 rotate synchronously, driving the spindle to rotate, and the CCD detection camera performs the circumference detection of the spindle;

S12. After the detection is completed, as soon as the rotating drive motor stops, the camera vertical drive assembly lifts the CCD inspection camera, the camera horizontal drive assembly drives the CCD inspection camera to move to the next inspection position of the main shaft, and repeats the above steps S8~S11 to carry out the main shaft down For the detection of a position, the above process is repeated continuously, and the detection of the spindle is carried out continuously.

It can be seen from the above technical solutions that the present invention has the following beneficial effects: the coaxiality detection device of the generator main shaft according to the present invention can fix the main shaft through the main shaft positioning and clamping assembly 1 and the main shaft positioning clamping assembly 2, The CCD camera can detect the coaxiality of the main shaft in the process of driving the main shaft to rotate by the main shaft rotation drive assembly, and can detect different positions in the axis direction of the main shaft through the set camera horizontal drive assembly, and the set camera vertical drive assembly can The CCD camera is adjusted to the best height position, and the coaxiality is judged by the measured data, so that the judgment of the coaxiality is more accurate, and the quantification is realized, which makes the adjustment of the coaxiality simpler. In this detection method, during the detection process and the movement of the adjusting device, the position change of the measurement point is recorded in time to ensure the accuracy of the detection data, so that the error of the calculated coaxiality result is relatively small and closer to the true value , to improve the accuracy of the entire detection method.

Description of drawings

1 is a schematic structural diagram of a coaxiality detection device for a generator main shaft according to the present invention;

2 is a schematic structural diagram of the first spindle positioning and clamping assembly or the second spindle positioning and clamping assembly according to the present invention;

3 is a schematic structural diagram of the clamping jaw connecting frame and clamping jaw 1, clamping jaw 2, clamping jaw 3 and clamping jaw 4 according to the present invention;

Fig. 4 is the structural schematic diagram of the clamping jaw connection frame of the present invention;

5 is a schematic structural diagram of the clamping jaw support base and clamping jaw 1, clamping jaw 2, clamping jaw 3 and clamping jaw 4 according to the present invention;

6 is a schematic structural diagram of the clamping jaw support seat according to the present invention;

7 is a schematic structural diagram of the spindle rotation drive assembly according to the present invention;

8 is a schematic structural diagram of the camera horizontal drive assembly and the camera vertical drive assembly according to the present invention;

FIG. 9 is a partial structural schematic diagram of the camera vertical drive assembly according to the present invention.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", etc. The orientation or positional relationship shown in the figures is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. Invention limitations.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise expressly defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Example

As shown in Figure 1, the coaxiality detection device of the main shaft of the generator includes a detection platform 1, a main shaft positioning and clamping assembly 2, a main shaft positioning and clamping assembly 2 3, a main shaft rotation driving assembly 4, a CCD detection camera 5, and a camera level. The drive assembly 6, the camera vertical drive assembly 7 and the detection frame 8, the spindle rotation drive assembly 4 and the detection frame 8 are fixedly arranged on the detection platform 1, the spindle positioning and clamping assembly 1 2 and the spindle positioning clamp The two holding assemblies 3 are all arranged on the main shaft rotation driving assembly 4, and the main shaft positioning and clamping assembly 1 2 and the main shaft positioning and clamping assembly 2 3 are symmetrically arranged, and the main shaft positioning and clamping assembly 1 2 and the main shaft positioning and clamping assembly 2 3 are arranged symmetrically. The main shaft can be clamped therebetween, the camera vertical drive assembly 7 is arranged on the upper end of the detection frame 8, the camera horizontal drive assembly 6 is connected with the camera vertical drive assembly 7, and the CCD detects the camera 5 and the camera The horizontal drive assembly 6 is connected, and the CCD detection camera 5 is located above the first spindle positioning and clamping assembly 2 and the second spindle positioning and clamping assembly 3 .

As shown in Figures 2-6, the spindle positioning and clamping assembly 1 2 and the spindle positioning clamping assembly 2 3 each include a fixed base plate 21, a vertical support plate 22, a clamping jaw 23, a clamping jaw 24, and a clamping jaw 3 25. , clamping jaw four 26, clamping jaw support base 27 and clamping jaw driving device 28, the fixed base plate 21 is connected with the spindle rotation drive assembly 4, and the vertical supporting plate 1 22 and the clamping jaw driving device 28 are fixedly arranged in a fixed position On the bottom plate 21, the clamping jaw support base 27 is fixedly arranged on the vertical surface of the vertical support plate 1 22. The jaw driving device 28 is connected, and the jaw one 23, jaw two 24, jaw three 25 and jaw four 26 are hinged with the jaw support base 27, the jaw one 23, jaw two 24, jaw three 25 and four jaws 26 are arranged in an annular array, the jaw one 23, jaw two 24, jaw three 25 and jaw four 26 can be clamped on the outer circumference of the end of the main shaft, the jaws The first 23, the second clamping jaw 24, the third clamping jaw 25 and the fourth clamping jaw 26 are all arranged in a zigzag or wavy shape at the ends that fit with the main shaft. The clamping jaw support base 27 includes two symmetrically arranged supporting plates 1 271, connecting plates 1 272, thimbles 273 and four clamping jaw supporting frames 1 274. One end of the two symmetrically arranged supporting plates 1 271 and the vertical The straight support plate one 22 is fixedly connected, the connecting plate one 272 and the support plate one 271 are fixedly connected to the end face of the vertical support plate one 22, and the ejector pin 273 is fixedly arranged on the vertical connection plate one 272 away from the support plate one 271. On the end face, the four jaw supports 1 274 are fixedly arranged on the connecting plate 1 272 in an annular array. The third 25 and the fourth 26 are arranged in a one-to-one correspondence, and the first 23, the second 24, the third 25 and the fourth 26 are arranged in a circular array with the center of the ejector pin 273 as the center of the circle. 273 is pressed and fitted with the end of the main shaft, the clamping jaw support frame 1 274 is provided with a clamping jaw transmission shaft 1 275, the clamping jaw 1 23, the clamping jaw 2 24, the clamping jaw 3 25 and the clamping jaw 4 26 They are respectively sleeved on the corresponding clamping jaw transmission shaft 1 275 . The clamping jaw driving device 28 includes a driving support frame 281, a driving motor 282, a motor support base 283, a screw 1 284, a screw sleeve 285, a connecting cylinder 286 and a clamping jaw connecting frame 287. The driving support frame 281 is fixedly arranged on a fixed position. Bottom plate 21, the motor support base 283 is fixed on the drive support frame 281, the drive motor 282 is fixed on the motor support base 283, and the drive motor 282 is connected with the screw one 284, and the screw sleeve 285 is sleeved on the One end of the screw sleeve 285 and the screw one 284 are threadedly connected, the end of the screw sleeve 285 away from the driving motor 282 is fixedly connected with the connecting cylinder 286, and the clamping jaw connecting frame 287 and the connecting cylinder 286 are far away from the screw sleeve 285. One end is fixedly connected, and one end of the first clamping jaw 23 , the second clamping jaw 24 , the third clamping jaw 25 and the fourth clamping jaw 26 are hinged with the clamping jaw connecting frame 287 respectively. The driving support frame 281 is provided with a guide sliding sleeve 1 288, and the vertical support plate 1 22 is provided with a guiding sliding sleeve 2 289. The guiding sliding sleeve 1 288 and the guiding sliding sleeve 2 289 are coaxial along the horizontal direction. The screw sleeve 285 is slidably connected with the guide sliding sleeve 1 288 and the guide sliding sleeve 2 289; a set of guide columns 2813 are arranged on the driving support frame 281, and the guide sliding plate 1 2814 is connected to the screw sleeve 285, so The guide slide 1 2814 is slidably connected with a group of guide posts 2813 . The clamping jaw connecting frame 287 includes a rectangular supporting seat 2810 and four U-shaped supporting clamping jaw supporting frames 2811, one end of the rectangular supporting seat 2810 is fixedly connected with the connecting cylinder 286, and the four U-shaped supporting clamping jaws support The second frame 2811 is fixedly arranged on the end of the rectangular support base 2810 away from the connecting cylinder 286. The four U-shaped supporting jaw frames 2811 and the four jaw supporting frames 274 are arranged in a one-to-one correspondence. The second clamping jaw support frame 2811 is provided with the second clamping jaw transmission shaft 2812. The first clamping jaw 23, the clamping jaw 2 24, the clamping jaw 3 25 and the clamping jaw 4 26 are all provided with a waist-shaped hole 231 at one end. The second clamping jaw transmission shaft 2812 and the waist-shaped hole 231 are connected in a rolling manner.

The main shaft rotary drive assembly 4 shown in FIG. 7 includes a rotary drive motor 1 41, a coupling 42, a rotary shaft 1 43, a driving wheel 1 44, a driving wheel 2 45, a driven wheel 1 46, a driven wheel 2 47, and a belt 1 48. The second belt 49, the second rotating shaft 410, the third rotating shaft 411, the first right angle support plate 412, the second right angle support plate 413 and the support base plate 414, the right angle support plate one 412 and the right angle support plate II 413 are fixedly arranged on the support base plate 414 , and the right-angle support plate one 412 and the right-angle support plate two 413 are symmetrically arranged, the rotary drive motor one 41 is fixedly arranged on the right angle support plate one 412, and the rotating shaft of the rotary drive motor one 41 passes through the coupling 42 and the rotating shaft one 43 connection, the driving wheel one 44 and the driving wheel two 45 are respectively arranged on the two ends of the rotating shaft one 43, and the rotating shaft one 43 is arranged on the lower end of the right angle support plate one 412 and the right angle support plate two 413 through the bearing. , the second rotating shaft 410 is arranged on the upper end of the right-angle supporting plate 412 through a bearing, the rotating shaft 3 411 is arranged on the upper end of the right-angle supporting plate 2 413 through a bearing, and the rotating shaft 2 410 and the rotating shaft 3 411 are symmetrically arranged, The driven wheel one 46 and the second rotating shaft 410 are connected by a key, the driven wheel two 47 and the rotating shaft three 411 are connected by a key, the belt one 48 is sleeved on the driving wheel one 44 and the driven wheel one 46, the belt The second 49 is sleeved on the second driving wheel 45 and the second driven wheel 47 , the first main shaft positioning and clamping assembly 2 is connected with the second rotating shaft 410 , and the second main shaft positioning and clamping assembly 3 is connected with the third rotating shaft 411 .

The camera vertical drive assembly 7 shown in FIGS. 8 and 9 includes a set of vertical drive cylinders 71 and a vertical lift U-shaped support plate 72, the set of vertical drive cylinders 71 is provided on the detection frame 8, and The piston rods of a group of vertical drive cylinders 71 are connected to the vertical lift U-shaped support plate 72, the camera horizontal drive assembly 6 is connected to the vertical lift U-shaped support plate 72, and the vertical lift U-shaped support plate 72 is close to the Both sides of the upright column of the detection rack 8 are provided with vertical guide sliders 73 , the upright column of the detection rack 8 is provided with a vertical guide chute 74 , the vertical guide slider 73 and the vertical guide chute 74 sliding connections. The camera horizontal drive assembly 6 includes a horizontal drive motor 61, a transfer support base 62, two guide rails 1 63, a guide slide 2 64, a second screw 65, a set of sliders 1 66 and a horizontal support plate 2 67. The base 62 is fixedly connected to the vertical lifting U-shaped support plate 72, the horizontal drive motor 61 is fixedly arranged on the transfer support base 62, and the horizontal drive motor 61 is connected to the second screw 65, and the second screw 65 is set through the screw support base On the transport support base 62, the first set of sliding blocks 66 is sleeved on the second screw rod 65, the second guide sliding plate 64 is connected with one of the first set of sliding blocks 66, and the second guiding sliding block 64 is sleeved on the screw rod On the second 65, the second horizontal support plate 67 is fixedly connected with a set of sliders 1 66 and the second guide slide 64, the CCD detection camera 5 is fixedly arranged on the second horizontal support plate 67, the two guide rails 1 63 and The second screw rods 65 are arranged in parallel, and the two guide rails 63 are located on both sides of the screw rod two 65 respectively.

Based on the above structure, a working method of a coaxiality detection device of a generator main shaft includes the following steps:

S1. Place the spindle between the spindle positioning and clamping component 1 2 and the spindle positioning and clamping component 2 3, and the two ends of the spindle are respectively located on the clamping jaws 1 of the spindle positioning and clamping component 1 2 and the spindle positioning and clamping component 2 3 23. Between the second jaw 24, the third jaw 25, and the fourth jaw 26;

S2. Spindle clamping: Spindle positioning and clamping component 1 2 and spindle positioning and clamping component 2 3 are activated;

S3, the drive motor 282 is started, and drives the screw one 284 to rotate, and the rotation of the screw one 284 drives the screw sleeve 285 to move in the horizontal direction;

S4. The screw sleeve 285 drives the clamping jaw connecting frame 287 to move away from the main shaft through the connecting cylinder 286;

S5. During the movement of the clamping jaw connecting frame 287, the clamping jaw transmission shaft 2 2812 is pulled to roll along the waist-shaped hole 231, and at the same time, the clamping jaw transmission shaft 2 2812 drives the clamping jaw 1 23, the clamping jaw 2 24, the clamping jaw 3 25 and the clamping jaw. The four 26 rotate around the jaw drive shaft one 275 respectively;

S6, the first gripper 23, the second gripper 24, the third gripper 25 and the fourth gripper 26 are rotated to the outer wall of the main shaft, and the main shaft is clamped;

S7, the horizontal drive motor 61 is started, and the second drive screw 65 is rotated, so that the second horizontal support plate 67 is at one end of the main shaft;

S8, the piston rods of a group of vertical drive cylinders 71 are stretched out, and the vertical lifting U-shaped support plate 72 is pushed up and down along the vertical direction, and the CCD detection camera 5 is adjusted to a certain distance from the outer wall of the main shaft;

S9, the rotation drive motor one 41 is started, and drives the rotation shaft one 43 to rotate, and the rotation shaft one 43 synchronously drives the driving wheel one 44 and the driving wheel two 45 to rotate;

S10, the driving wheel 1 44 drives the driven wheel 1 46 to rotate through the belt 1 48, and the driving wheel 2 45 drives the driven wheel 2 47 to rotate through the belt 2 49, so that the driven wheel 1 46 and the driven wheel 2 47 rotate synchronously;

S11, the synchronous rotation of the driven wheel 1 46 and the driven wheel 2 47 makes the spindle positioning and clamping component 1 2 and the spindle positioning and clamping component 2 3 rotate synchronously, driving the spindle to rotate, and the CCD detection camera 5 detects the circumference of the spindle;

S21. After the detection, the rotating drive motor 1 41 stops, the camera vertical drive assembly 7 lifts the CCD detection camera 5, the camera horizontal drive assembly 6 drives the CCD detection camera 5 to move to the next detection position of the spindle, and repeats the above steps S8~ S11: Detect the next position of the spindle, repeat the above process continuously, and continuously detect the spindle.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements can be made without departing from the principles of the present invention, and these improvements should also be regarded as the present invention. the scope of protection of the invention.

Claims (1)

1. The utility model provides a axiality detection device of generator main shaft which characterized in that: comprises a detection platform (1), a first main shaft positioning and clamping component (2), a second main shaft positioning and clamping component (3), a main shaft rotation driving component (4), a CCD detection camera (5), a camera horizontal driving component (6), a vertical camera driving component (7) and a detection rack (8), wherein the main shaft rotation driving component (4) and the detection rack (8) are fixedly arranged on the detection platform (1), the first main shaft positioning and clamping component (2) and the second main shaft positioning and clamping component (3) are arranged on the main shaft rotation driving component (4), the first main shaft positioning and clamping component (2) and the second main shaft positioning and clamping component (3) are symmetrically arranged, a main shaft can be clamped between the first main shaft positioning and clamping component (2) and the second main shaft positioning and clamping component (3), the vertical camera driving component (7) is arranged on the upper end part of the detection rack (8), the camera horizontal driving assembly (6) is connected with the camera vertical driving assembly (7), the CCD detection camera (5) is connected with the camera horizontal driving assembly (6), and the CCD detection camera (5) is positioned above the first spindle positioning and clamping assembly (2) and the second spindle positioning and clamping assembly (3);

the spindle positioning and clamping assembly I (2) and the spindle positioning and clamping assembly II (3) respectively comprise a fixed bottom plate (21), a first vertical supporting plate (22), a first clamping jaw (23), a second clamping jaw (24), a third clamping jaw (25), a fourth clamping jaw (26), a clamping jaw supporting seat (27) and a clamping jaw driving device (28), the fixed bottom plate (21) is connected with the spindle rotation driving assembly (4), the first vertical supporting plate (22) and the clamping jaw driving device (28) are fixedly arranged on the fixed bottom plate (21), the clamping jaw supporting seat (27) is fixedly arranged on the vertical surface of the first vertical supporting plate (22), one ends of the first clamping jaw (23), the second clamping jaw (24), the third clamping jaw (25) and the fourth clamping jaw (26) are connected with the clamping jaw driving device (28), and the first clamping jaw (23), the second clamping jaw (24), the third clamping jaw (25), the fourth clamping jaw (26) and the clamping jaw supporting seat (27) are hinged, the clamping jaw I (23), the clamping jaw II (24), the clamping jaw III (25) and the clamping jaw IV (26) are arranged in an annular array mode, the clamping jaw I (23), the clamping jaw II (24), the clamping jaw III (25) and the clamping jaw IV (26) can be clamped on the outer circumference of the end part of the spindle, and the end parts, attached to the spindle, of the clamping jaw I (23), the clamping jaw II (24), the clamping jaw III (25) and the clamping jaw IV (26) are all arranged in a sawtooth shape or a wave shape;

the clamping jaw supporting seat (27) comprises two symmetrically arranged first supporting plates (271), first connecting plates (272), ejector pins (273) and first four clamping jaw supporting frames (274), one ends of the two symmetrically arranged first supporting plates (271) are fixedly connected with the first vertical supporting plates (22), the first connecting plates (272) are fixedly connected with the first supporting plates (271) in the end face mode of keeping away from the first vertical supporting plates (22), the ejector pins (273) are fixedly arranged on the first connecting plates (272) in the vertical end face mode of keeping away from the first supporting plates (271), the first four clamping jaw supporting frames (274) are fixedly arranged on the first connecting plates (272) in an annular array mode, the first clamping jaw supporting frames (274) are arranged in one-to-one correspondence with the first clamping jaws (23), the second clamping jaws (24), the third clamping jaws (25) and the fourth clamping jaws (26), and the first clamping jaws (23), the second clamping jaws (24), The clamping jaw III (25) and the clamping jaw IV (26) are arranged in an annular array mode by taking the center of the ejector pin (273) as the center of a circle, the ejector pin (273) is tightly pressed and attached to the end part of the main shaft, a clamping jaw transmission shaft I (275) is arranged on the clamping jaw support frame I (274), and the clamping jaw I (23), the clamping jaw II (24), the clamping jaw III (25) and the clamping jaw IV (26) are respectively sleeved on the corresponding clamping jaw transmission shaft I (275);

the clamping jaw driving device (28) comprises a driving supporting frame (281), a driving motor (282), a motor supporting seat (283), a first screw rod (284), a screw rod sleeve (285), a connecting cylinder (286) and a clamping jaw connecting frame (287), wherein the driving supporting frame (281) is fixedly arranged on the fixed bottom plate (21), the motor supporting seat (283) is fixedly arranged on the driving supporting frame (281), the driving motor (282) is fixedly arranged on the motor supporting seat (283), the driving motor (282) is connected with the first screw rod (284), the screw rod sleeve (285) is sleeved on the first screw rod (284), the screw rod sleeve (285) is in threaded connection with the first screw rod (284), one end, far away from the driving motor (282), of the screw rod sleeve (285) is fixedly connected with the connecting cylinder (286), the clamping jaw connecting frame (287) is fixedly connected with one end, far away from the screw rod sleeve (285), of the connecting cylinder (286), one ends of the first clamping jaw (23), the second clamping jaw (24), the third clamping jaw (25) and the fourth clamping jaw (26) are respectively hinged with the clamping jaw connecting frame (287);

a first guide sliding sleeve (288) is arranged on the driving support frame (281), a second guide sliding sleeve (289) is arranged on the first vertical support plate (22), the first guide sliding sleeve (288) and the second guide sliding sleeve (289) are coaxially arranged along the horizontal direction, and the screw rod sleeve (285) is in sliding connection with the first guide sliding sleeve (288) and the second guide sliding sleeve (289); a group of guide columns (2813) are arranged on the driving support frame (281), a first guide sliding plate (2814) is connected to the screw sleeve (285), and the first guide sliding plate (2814) is in sliding connection with the group of guide columns (2813);

the clamping jaw connecting frame (287) comprises a rectangular supporting seat (2810) and four U-shaped supporting clamping jaw supporting frames (2811), one end of the rectangular supporting seat (2810) is fixedly connected with the connecting cylinder (286), the four U-shaped supporting clamping jaw supporting frames (2811) are fixedly arranged at the end part, far away from the connecting cylinder (286), of the rectangular supporting seat (2810), the four U-shaped supporting clamping jaw supporting frames (2811) and the four clamping jaw supporting frames (274) are arranged in a one-to-one corresponding mode, clamping jaw transmission shafts (2812) are arranged on the U-shaped supporting clamping jaw supporting frames (2811), waist-shaped holes (231) are formed in one ends of the clamping jaw I (23), the clamping jaw II (24), the clamping jaw III (25) and the clamping jaw IV (26), and the clamping jaw transmission shafts (2812) are in rolling connection with the waist-shaped holes (231);

the spindle rotation driving assembly (4) comprises a first rotation driving motor (41), a coupler (42), a first rotation rotating shaft (43), a first driving wheel (44), a second driving wheel (45), a first driven wheel (46), a second driven wheel (47), a first belt (48), a second belt (49), a second rotating shaft (410), a third rotating shaft (411), a first right-angle supporting plate (412), a second right-angle supporting plate (413) and a supporting bottom plate (414), wherein the first right-angle supporting plate (412) and the second right-angle supporting plate (413) are fixedly arranged on the supporting bottom plate (414), the first right-angle supporting plate (412) and the second right-angle supporting plate (413) are symmetrically arranged, the first rotation driving motor (41) is fixedly arranged on the first right-angle supporting plate (412), the rotating shaft of the first rotation driving motor (41) is connected with the first rotation rotating shaft (43) through the coupler (42), the first driving wheel (44) and the second driving wheel (45) are respectively arranged at two ends of the first rotation rotating shaft (43), the first rotating shaft (43) is arranged on the lower end parts of the first right-angle supporting plate (412) and the second right-angle supporting plate (413) through bearings, the second rotating shaft (410) is arranged on the upper end part of the first right-angle supporting plate (412) through a bearing, the rotating shaft III (411) is arranged on the upper end part of the right-angle supporting plate II (413) through a bearing, the second rotating shaft (410) and the third rotating shaft (411) are symmetrically arranged, the first driven wheel (46) and the second rotating shaft (410) are connected through keys, the driven wheel II (47) is connected with the rotating shaft III (411) through a key, the belt I (48) is sleeved on the driving wheel I (44) and the driven wheel I (46), the second belt (49) is sleeved on the second driving wheel (45) and the second driven wheel (47), the spindle positioning and clamping assembly I (2) is connected with the rotating shaft II (410), and the spindle positioning and clamping assembly II (3) is connected with the rotating shaft III (411);

the camera vertical driving assembly (7) comprises a group of vertical driving cylinders (71) and a vertical lifting U-shaped supporting plate (72), the group of vertical driving cylinders (71) is arranged on the detection rack (8), piston rods of the group of vertical driving cylinders (71) are connected with the vertical lifting U-shaped supporting plate (72), the camera horizontal driving assembly (6) is connected with the vertical lifting U-shaped supporting plate (72), vertical guide sliding blocks (73) are arranged on two sides, close to the vertical column of the detection rack (8), of the vertical lifting U-shaped supporting plate (72), vertical guide sliding grooves (74) are formed in the vertical column of the detection rack (8), and the vertical guide sliding blocks (73) are connected with the vertical guide sliding grooves (74) in a sliding mode;

the camera horizontal driving assembly (6) comprises a horizontal driving motor (61), a transferring supporting base (62), two guide rails I (63), a guiding sliding plate II (64), a screw rod II (65), a group of sliding blocks I (66) and a horizontal supporting plate II (67), wherein the transferring supporting base (62) is fixedly connected with a vertical lifting U-shaped supporting plate (72), the horizontal driving motor (61) is fixedly arranged on the transferring supporting base (62), the horizontal driving motor (61) is connected with the screw rod II (65), the screw rod II (65) is arranged on the transferring supporting base (62) through a screw rod supporting seat, the group of sliding blocks I (66) is sleeved on the screw rod II (65), the guiding sliding plate II (64) is connected with one of the group of sliding blocks I (66), the guiding sliding plate II (64) is sleeved on the screw rod II (65), the horizontal supporting plate II (67) is fixedly connected with the group of sliding blocks I (66) and the guiding sliding plate II (64), the CCD detection camera (5) is fixedly arranged on a second horizontal supporting plate (67), the two first guide rails (63) and the second screw rod (65) are arranged in parallel, the two first guide rails (63) are respectively positioned on two sides of the second screw rod (65), and the second guide sliding plate (64) is in sliding connection with the two first guide rails (63);

the working method of the coaxiality detection device of the main shaft of the generator comprises the following steps:

s1, placing the main shaft between the first main shaft positioning and clamping assembly (2) and the second main shaft positioning and clamping assembly (3), wherein two ends of the main shaft are respectively located between the first clamping jaw (23), the second clamping jaw (24), the third clamping jaw (25) and the fourth clamping jaw (26) of the first main shaft positioning and clamping assembly (2) and the second main shaft positioning and clamping assembly (3);

s2, clamping of the main shaft: starting a first main shaft positioning and clamping assembly (2) and a second main shaft positioning and clamping assembly (3);

s3, starting a driving motor (282) to drive a first screw rod (284) to rotate, and driving a screw rod sleeve (285) to move along the horizontal direction due to the rotation of the first screw rod (284);

s4, the screw sleeve (285) drives the clamping jaw connecting frame (287) to move towards the direction far away from the main shaft through the connecting cylinder (286);

s5, pulling the second clamping jaw transmission shaft (2812) to roll along the kidney-shaped hole (231) in the moving process of the clamping jaw connecting frame (287), and simultaneously driving the first clamping jaw (23), the second clamping jaw (24), the third clamping jaw (25) and the fourth clamping jaw (26) to rotate around the first clamping jaw transmission shaft (275) respectively by the second clamping jaw transmission shaft (2812);

s6, a first clamping jaw (23), a second clamping jaw (24), a third clamping jaw (25) and a fourth clamping jaw (26) rotate to the outer wall of the spindle and clamp the spindle;

s7, starting the horizontal driving motor (61), and driving the second screw rod (65) to rotate, so that the second horizontal supporting plate (67) is positioned at one end of the main shaft;

s8, extending piston rods of a group of vertical driving cylinders (71), pushing a vertical lifting U-shaped supporting plate (72) to lift along the vertical direction, and adjusting a CCD detection camera (5) to be at a certain distance from the outer wall of the main shaft;

s9, starting the first rotary driving motor (41) to drive the first rotary rotating shaft (43) to rotate, and synchronously driving the first driving wheel (44) and the second driving wheel (45) to rotate by the first rotary rotating shaft (43);

s10, the driving wheel I (44) drives the driven wheel I (46) to rotate through the belt I (48), the driving wheel II (45) drives the driven wheel II (47) to rotate through the belt II (49), and therefore the driven wheel I (46) and the driven wheel II (47) rotate synchronously;

s11, synchronous rotation of the driven wheel I (46) and the driven wheel II (47) enables the main shaft positioning and clamping assembly I (2) and the main shaft positioning and clamping assembly II (3) to synchronously rotate to drive the main shaft to rotate, and the CCD detection camera (5) performs circumference detection on the main shaft;

s12, after the detection is finished, stopping the first rotary driving motor (41), lifting the CCD detection camera (5) by the camera vertical driving assembly (7), driving the CCD detection camera (5) to move to the next detection position of the spindle by the camera horizontal driving assembly (6), repeating the steps S8-S11, detecting the next position of the spindle, continuously repeating the process, and continuously detecting the spindle.

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