Bearing vibration detection device and detection method

Abstract

The present invention discloses a bearing vibration detection device and detection method, comprising a detection platform, a driving box body is provided on one side above the detection platform, a control panel is provided above the driving box body, a fixed rotating device is fixed to the side wall of the driving box body, a bearing is fixed to the outer diameter surface of the fixed rotating device, a vibration detection device is provided on the outer diameter surface of the bearing, the vibration detection device and the detection platform are slidably connected by a sliding device, the fixed rotating device comprises a fixed chuck, the driving box body drives the fixed chuck through its internal power source to complete the rotation and fastening clamping tasks, a matching fastening device is fixed in the middle of the inner side of the fixed chuck, and the fixed chuck and the matching fastening device cooperate with each other to perform doubly fixing the bearing; in addition to fixing the inner ring of the bearing by the fixed chuck, the present invention is provided with a matching fastening device to perform secondary matching fastening on the side wall of the inner ring of the bearing to prevent position deviation from occurring during the rotation of the inner ring of the bearing and affecting the final vibration detection accuracy.

Description

Technical Field

[0001] The present invention belongs to the technical field of bearing vibration detection, and in particular relates to a bearing vibration detection device and a detection method. Background Art

[0002] Bearing vibration, as the name suggests, refers to all movements that deviate from the ideal position during the operation of the bearing, except for some inherent movements between bearing parts required by the function. With the continuous improvement of the requirements for bearing vibration, noise and abnormal sound in industries such as home appliances, the control, detection and evaluation of bearing vibration, noise and abnormal sound have become an issue of increasing concern to bearings and bearing user companies.

[0003] The entire process of bearing production and use can be tested by a dedicated vibration detection device, which mainly includes a driving device, a signal conversion device, a signal processing device and a measurement display device. The usual working principle is that the driving device drives the inner ring of the tested bearing to rotate, thereby stimulating the vibration of the tested bearing. The acceleration sensor and the corresponding mounting components constitute a signal conversion device, which is used to convert the vibration acceleration stimulated by the rotation of the inner ring of the tested bearing into a testable electrical signal. Specifically, the outer ring of the tested bearing transmits the received radial vibration to the pressure acceleration sensor through the vibration transmission rod. The pressure acceleration sensor then converts the acceleration signal of the radial vibration of the bearing into an electrical signal through the signal conversion device and transmits it to the measurement display device to complete the final measurement task.

[0004] The document with patent publication number CN115235771B discloses a bearing vibration detection device, including a device main body, a double-sided clamping mechanism and a feeding mechanism. A driving unit is installed on the device main body, and a main shaft is installed at one end of the driving unit. A detection probe located above the main shaft is installed on the upper end of the driving unit, and a bearing to be detected is installed on the main shaft; the technical problem to be solved is that when disassembling and assembling the detection bearing, a hydraulic cylinder and an electric push rod need to cooperate to drive the radial and axial push blocks to move in turn, and then the detection bearing is manually disassembled and assembled, which not only makes the disassembly and assembly of the detection bearing inconvenient, thereby reducing the bearing detection efficiency, but also requires multiple power sources to drive the disassembly and assembly of the detection bearing, which will result in high equipment manufacturing and use costs, and multiple clamping load mechanisms are distributed around the detection bearing, which is easy to cause interference when the bearing is disassembled and assembled, which will reduce the bearing disassembly and assembly efficiency, thereby further reducing the bearing detection efficiency.

[0005] However, in practical applications, the use of this device still causes the following problems:

[0006] 1. When the equipment performs vibration testing on the bearing to be tested, the inner ring of the bearing is directly fixed on the main shaft for rotation testing. This fixing method has poor inner ring stability and is prone to bearing offset problems during high-speed rotation, affecting the final test results;

[0007] 2. The equipment can only perform single-point detection. The detection probe cannot contact multiple points on the outer ring of the bearing. The data accuracy of single-point detection is not as accurate as that of multi-point detection. Summary of the invention

[0008] The purpose of the present invention is to provide a bearing vibration detection device and detection method in order to solve the problems that traditional bearing detection devices have poor stability when fixing the inner ring of the bearing, are prone to bearing deviation during high-speed rotation, and affect the final detection results.

[0009] The present invention achieves the above-mentioned purpose through the following technical scheme: comprising a detection platform, a driving box is provided on one side above the detection platform, a control panel is provided above the driving box, a fixed rotating device is fixed to the side wall of the driving box, a bearing is fixed to the outer diameter surface of the fixed rotating device, a vibration detection device is provided on the outer diameter surface of the bearing, the vibration detection device is used to fix the bearing and detect vibration, and the vibration detection device and the detection platform are slidably connected through a sliding device;

[0010] The fixed rotating device includes a fixed chuck. The driving box drives the fixed chuck through its internal power source to complete the rotation and tightening clamping tasks. A matching tightening device is fixed in the middle of the inner side of the fixed chuck. The fixed chuck and the matching tightening device cooperate with each other to double fix the bearing.

[0011] Further, the control panel includes a display and a number of control buttons;

[0012] The bearing comprises an inner ring, an outer ring is arranged on the outer diameter surface of the inner ring, and a plurality of balls are evenly arranged between the inner ring and the outer ring.

[0013] Furthermore, the fixed chuck includes a chuck body, a plurality of slideways are evenly opened on the chuck body, claws are arranged in the slideways, a first tightening block is fixed to the end of the claw, a micro cylinder is fixed inside the first tightening block, a second tightening block is fixed to one side of the micro cylinder, and anti-slip grooves are arranged at the positions of the first tightening block and the second tightening block close to the bearing. When the width of the inner ring of the bearing is detected to be small, the micro cylinder is in a retracted state. When the inner ring of the bearing with a larger width is tightened, the micro cylinder pushes out the second tightening block to cooperate with the first tightening block to adapt to the inner ring width of this size.

[0014] Furthermore, the fixed chuck includes a chuck body, a plurality of slideways are evenly provided on the chuck body, claws are provided in the slideways, hollow receiving grooves are provided near the inner side of the claws, a rotating block is provided in the receiving groove, the rotating block and the claw are rotatably connected through a rotating shaft, a micro motor is provided on the end surface of the claw and at the rotating connection between the rotating block and the claw, the micro motor drives the rotating block to flip relative to the claw, the position of the rotating block after flipping is flush with the tightening position of the claw, anti-slip grooves are provided on the surfaces of the claw and the rotating block close to the bearing, when the width of the inner ring of the bearing is detected to be small, the micro motor controls the flipping block to flip inward so that it is in the receiving groove on the claw, and when the inner ring of the bearing with a larger width is tightened, the micro motor controls the flipping block to flip outward, and cooperates with the claw to complete the clamping task.

[0015] Furthermore, the matching fastening device includes a fixing seat, which is fixed on the fixing chuck and located between the claws. A hollow sleeve is provided on one side of the fixing seat, a bottom plate is provided inside the hollow sleeve, a plurality of fixing claws are evenly connected on the outer circle of the bottom plate, the fixing claws and the bottom plate are connected by rotation, a support column is provided on one side of the bottom plate, a push plate is provided on one side of the support column, a support rod is connected between the push plate and the side wall of the fixing claw, the support rod and the fixing claw, the support rod and the push plate are all connected by rotation through a rotating shaft, a cylinder is fixed on one side of the push plate, and the piston rod part of the cylinder It penetrates the hollow sleeve and is directly fixedly connected to the push plate. The cylinder sleeve part of the cylinder is fixed to the outside of the hollow sleeve by a fixing plate and a nut. A number of openings for accommodating fixing claws and support rods are evenly opened on the circumferential wall of the hollow sleeve. The inner ring is secondarily fastened by the fastening device under the drive of the cylinder. The piston rod part pushes the push plate forward, thereby making the fixing claw open outward in cooperation with the support rod. When the fixing claw is fully opened, the side wall of the inner ring is secondarily clamped to prevent the problem of position displacement during rotation.

[0016] Furthermore, the vibration detection device includes a fixed ring, which is a full ring composed of two detachable half rings. A sensing line is connected between the fixed ring and the bottom of the control panel, and a plurality of vibration sensors are evenly arranged on the inner diameter surface of the fixed ring.

[0017] Furthermore, the vibration sensor includes a circular limit tube, a sensing gasket is provided at the bottom of the circular limit tube, a piezoelectric sensor is provided above the sensing gasket, a rigid spring is provided on the outer diameter surface of the rod body of the piezoelectric sensor, a vertical support rod is provided above the piezoelectric sensor, a sensing head is provided on the top of the vertical support rod, the vertical support rod is hollow inside, and the rod body of the piezoelectric sensor is just located inside the hollow part of the vertical support rod. When the bearing has a vibration deviation, the vertical support rod will vibrate accordingly, and the sensing head will transfer the pressure to the piezoelectric sensor through the rigid spring, and the piezoelectric sensor will convert it into an electrical signal that can be received and displayed and transmit it to the display through the sensor line.

[0018] Further, the sliding device includes a first sliding device, and a second sliding device is provided below the first sliding device;

[0019] The first sliding device includes a first slider, which is fixed at the bottom of the fixing ring, a first screw rod is penetrated inside the first slider, the inner ends of the first screw rod are separated and supported by a baffle, a motor fixing plate is provided at the outer end of the first screw rod, a first motor is provided on the motor fixing plate and connected to the first screw rod, a guide rail is provided on one side of the first screw rod, a protrusion is provided on the side wall of the first slider, and the protrusion slides in the guide rail, and the first sliding device is mainly used to control the two half rings of the vibration ring to move closer to each other and fit together to finally form a whole ring.

[0020] Furthermore, the second sliding device includes a slide plate, a baffle, a motor fixing plate and a guide rail are all fixed on the top of the slide plate, a second slide plate is provided in the middle of the bottom of the slide plate, a second screw rod is penetrated inside the second slide plate, one side of the second screw rod is fixed to the inner wall of the detection platform, and the other side of the second screw rod is connected to the second motor, the second motor is located in the motor accommodating groove opened on the detection platform, third slide plates are provided at both ends of the bottom of the slide plate, a slide rail is provided under the third slide plate, the third slide plate slides on the slide rail, and the slide rail is fixed on the detection platform, and the second sliding device is mainly used to drive the first sliding device and the vibration detection device above it to approach the bearing to be detected and complete the final detection task.

[0021] A bearing vibration detection method, characterized in that it includes the following steps:

[0022] Step 1: Reset all mechanisms. At this time, the two half rings of the fixed ring are separated, the second sliding device is located on the side away from the fixed chuck, and the fastening device is in a retracted state;

[0023] Step 2: The bearing is mounted on the fixed chuck as a whole, and the claws of the fixed chuck fix the inner ring. At this time, since the outer ring is in an unfixed state, when the fixed chuck rotates, the bearing will be driven to rotate as a whole;

[0024] Step 3: The inner ring is tightened for the second time under the drive of the cylinder with the tightening device. The piston rod of the cylinder pushes the push plate forward, so that the fixing claws are opened outward in cooperation with the support rod. When the fixing claws are fully opened, the side wall of the inner ring is clamped for the second time to prevent the problem of position deviation during the rotation process.

[0025] Step 4: The second motor starts working. Driven by the second motor, the second sliding device drives the first sliding device and the vibration detection device above it to slide toward the bearing, and stops moving when the fixed ring is flush with the bearing.

[0026] Step 5: The first motor works. Driven by the first motor, the first sliding device drives the two half rings of the fixed ring to move closer to each other. When the fixed ring becomes a full ring, the first sliding device stops moving. At this time, the vibration sensor just touches the surface of the outer ring.

[0027] Step 6: The fixed chuck starts working. At this time, the outer ring has been fixed and tightened by the outer ring, so when the inner ring rotates, the outer ring will not rotate with it;

[0028] Step 7: The vibration sensor starts to detect the vibration of the running bearing. When the bearing has vibration deviation, the vertical rod will vibrate accordingly. The sensing head will transfer the pressure to the piezoelectric sensor through the rigid spring. The piezoelectric sensor will convert it into an electrical signal that can be received and displayed and transmit it to the display through the sensor line.

[0029] Beneficial effects: 1. In addition to fixing the inner ring of the bearing by fixing the chuck, the present invention is provided with a matching fastening device to perform secondary matching fastening on the side wall of the inner ring of the bearing, so as to prevent the inner ring of the bearing from being offset during the rotation process and affecting the final vibration detection accuracy;

[0030] 2. The fixed chuck of the present invention is designed to be adjustable and can be adjusted according to bearings of different widths. The distance between the two tightening blocks is adjusted by a micro cylinder or the rotating block is controlled to flip by a micro motor to adapt to different sizes.

[0031] 3. The vibration sensors of the present invention are evenly arranged on the inner diameter surface of the fixing ring, and can perform multi-point detection on the outer ring of the bearing. Compared with the traditional single-point detection device, the detection data of the present invention is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the fixed rotating device of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the vibration detection device of the present invention;

[0035] Figure 4 This is a schematic diagram of a fixed chuck structure according to a first embodiment of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the matching fastening device of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the vibration sensor of the present invention;

[0038] Figure 7 It is a schematic structural diagram of the first sliding device of the present invention;

[0039] Figure 8 It is a schematic structural diagram of the second sliding device of the present invention;

[0040] Fig. 9 This is a schematic diagram of the fixed chuck structure of embodiment 2 of the present invention.

[0041] In the figure: 1-detection platform, 2-driving box, 3-control panel, 4-fixed rotating device, 5-bearing, 6-vibration detection device, 7-sliding device;

[0042] 31-display, 32-control buttons;

[0043] 41-fixed chuck, 42-matching fastening device;

[0044] 51-inner ring, 52-outer ring, 53-ball;

[0045] 61-fixing ring, 62-sensing wire, 63-vibration sensor;

[0046] 71-first sliding device, 72-second sliding device;

[0047] 411-chuck body, 412-slideway, 413-claw, 414-first tightening block, 415-micro cylinder, 416-second tightening block, 417-anti-slip groove, 418-accommodation groove, 419-rotating block, 4110-micro motor, 4111-anti-slip pad;

[0048] 421-fixed seat, 422-hollow sleeve, 423-bottom plate, 424-fixed claw, 425-support column, 426-push plate, 427-support rod, 428-cylinder, 429-opening;

[0049] 631-circular limiting tube, 632-sensing gasket, 633-piezoelectric sensor, 634-rigid spring, 635-vertical support rod, 636-sensing head;

[0050] 711-first slider, 712-first screw rod, 713-baffle, 714-motor fixing plate, 715-first motor, 716-guide rail, 717-protrusion;

[0051] 721 - slide plate, 722 - second slide block, 723 - second screw rod, 724 - second motor, 725 - third slide block, 726 - slide rail. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Embodiment 1:

[0054] Combination Figure 1 , Figure 2 A bearing vibration detection device shown in the figure comprises a detection platform 1, a driving box 2 is provided on one side above the detection platform 1, a control panel 3 is provided above the driving box 2, a fixed rotating device 4 is fixed to the side wall of the driving box 2, a bearing 5 is fixed to the outer diameter surface of the fixed rotating device 4, all processes for vibration detection of the bearing 5 are carried out on the detection platform 1, the fixed rotating device 4 is used to fasten the bearing 5 to be detected, and rotate it under the drive of the power source provided inside the driving box 2, a vibration detection device 6 is provided on the outer diameter surface of the bearing 5, the vibration detection device 6 is used to fix and vibration detect the bearing 5, the vibration detection device 6 is slidably connected to the detection platform 1 through a sliding device 7, so that the vibration detection device 6 can slide relative to the detection platform 1, and in addition to having the function of vibration detection, it is also used to fix the position of the bearing 5 to prevent the problem of displacement during the detection process;

[0055] The fixed rotating device 4 includes a fixed chuck 41. The driving box 2 drives the fixed chuck 41 through its internal power source to complete the rotation and fastening clamping tasks. A matching fastening device 42 is fixed in the middle of the inner side of the fixed chuck 41. The fixed chuck 41 and the matching fastening device 42 cooperate with each other to double fix the bearing 5. Although the fixed chuck 41 and the matching fastening device 42 together constitute the whole of the fixed rotating device 4, their respective functions are not the same. The fixed chuck 41 is mainly used to fasten the inner diameter surface of the bearing 5, and the matching fastening device 42 cooperates with the fixed chuck 41 to perform secondary fastening on the side wall of the bearing 5. If the two work alone, the problem of position deviation of the bearing 5 may occur. If they work together, the fastening performance will be better and the above-mentioned problem will not occur.

[0056] The control panel 3 includes a display 31 and a plurality of control buttons 32. The display 31 is used to receive the detection signal, and the control buttons 32 are used to control the detection work.

[0057] The bearing 5 comprises an inner ring 51, an outer ring 52 is arranged on the outer diameter surface of the inner ring 51, and a plurality of balls 53 are evenly arranged between the inner ring 51 and the outer ring 52. The inner ring 51 is in a rotating state during detection, while the outer ring 52 is in a fixed static state.

[0058] Combination Figure 3 As shown, the vibration detection device 6 includes a fixed ring 61, which is a whole ring composed of two detachable half rings. Before the detection work starts, the fixed ring 61 is in a state of two separated half rings. Only when the fastening work of the bearing 5 is completed, the fixed ring 61 will be in a state of a closed whole ring. A sensor line 62 is connected between the fixed ring 61 and the bottom of the control panel 3. A plurality of vibration sensors 63 are evenly arranged on the inner diameter surface of the fixed ring 61. The sensor 63 is used to convert the received pressure into an acceptable electrical signal and transmit it through the sensor line 62.

[0059] In this embodiment, the Figure 4 The fixed chuck 41 shown includes a chuck body 411, on which a plurality of slideways 412 are evenly provided, and claws 413 are provided in the slideways 412. When the inner ring 51 of the bearing 5 is tightened, the claws 413 are first in a close state on the slideway 412, and then begin to open outward to tighten it after entering the inner diameter surface of the inner ring 51. A first tightening block 414 is fixed to the end of the claw 413, and a micro cylinder 415 is fixed inside the first tightening block 414. A second tightening block 416 is fixed to one side of the micro cylinder 415. Under the control of the micro cylinder 415, the distance between the first tightening block 414 and the second tightening block 416 can be adjusted to adapt to bearings 5 ​​of different widths. The positions of the tightening block 414 and the second tightening block 416 close to the bearing 5 are provided with anti-skid patterns 417, and the anti-skid patterns 417 are mainly used to increase the friction between the inner ring 51 of the bearing 5 to prevent slipping.

[0060] Combination Figure 5As shown, the matching fastening device 42 includes a fixing seat 421, which is fixed on the fixing chuck 41 and located between the claws 413. The fixing seat 421 is used to fix the matching fastening device 42 on the fixing chuck 41. A hollow sleeve 422 is provided on one side of the fixing seat 421, and a bottom plate 423 is provided inside the hollow sleeve 422. A plurality of fixing claws 424 are evenly connected on the outer circle of the bottom plate 423. The fixing claws 424 and the bottom plate 423 are connected by rotation. A support column 425 is provided on one side of the bottom plate 423. The support column 425 is used for filling and supporting. A push plate 426 is provided on one side of the support column 425. Support rods 427 are connected between the push plate 426 and the side walls of the fixing claws 424. There are support rods 427 between the support rods 427 and the fixing claws 424, and between the support rods 427 and the push plate 426. The push plate 426 is connected in a rotational manner through a rotating shaft, and a cylinder 428 is fixed on one side of the push plate 426. The piston rod portion of the cylinder 428 passes through the hollow sleeve 422 and is directly fixedly connected to the push plate 426. The cylinder sleeve portion of the cylinder 428 is fixed to the outer side of the hollow sleeve 422 through a fixing plate and a nut. A plurality of openings 429 for accommodating the fixing claws 424 and the support rod 427 are evenly provided on the circumferential wall surface of the hollow sleeve 422. The fastening device 42 cooperates with the fastening device 42 to perform secondary fastening on the inner ring 51 under the drive of the cylinder 428. The piston rod portion thereof pushes the push plate 426 forward, thereby allowing the fixing claws 424 to open outward in cooperation with the support rod 427. When the fixing claws 424 are fully opened, the side walls of the inner ring 51 are clamped for a secondary time, which can prevent the problem of position displacement during rotation.

[0061] Combination Figure 6 As shown, the vibration sensor 63 includes a circular limiting tube 631, a sensing gasket 632 is provided at the bottom of the circular limiting tube 631, a piezoelectric sensor 633 is provided above the sensing gasket 632, the piezoelectric sensor 633 will convert the electric signal when subjected to pressure, a rigid spring 634 is provided on the outer diameter surface of the rod body of the piezoelectric sensor 633, the rigid spring 634 will be compressed when subjected to pressure, a vertical support rod 635 is provided above the piezoelectric sensor 633, and a vertical support rod 635 is provided at the top The sensing head 636 and the vertical support rod 635 are hollow inside, and the rod body of the piezoelectric sensor 633 is just located inside the hollow part of the vertical support rod 635. The overall working principle of the vibration sensor 63 is that when the bearing 5 has a vibration deviation, the vertical support rod 635 will vibrate accordingly, and the sensing head 636 will transfer the pressure to the piezoelectric sensor 633 through the rigid spring 634, and the piezoelectric sensor 633 will convert it into an electrical signal that can be received and displayed and transmit it to the display 31 through the sensor line 62.

[0062] Combination Figure 7As shown, the sliding device 7 includes a first sliding device 71, and a second sliding device 72 is provided below the first sliding device 71. The first sliding device 71 is used to separate and close the fixing ring 61, and the second sliding device 72 is used to drive the first sliding device 71 to slide;

[0063] The first sliding device 71 includes a first slider 711, which is fixed to the bottom of the fixing ring 61. A first screw rod 712 is penetrated inside the first slider 711. The inner ends of the first screw rod 712 are separated and supported by a baffle 713. The outer ends of the first screw rods 712 are provided with motor fixing plates 714. A first motor 715 is provided on the motor fixing plates 714 and at a position connected to the first screw rod 712. Driven by the first motor 715, the first screw rod 712 can drive the first slider 711 to slide. A guide rail 716 is provided on one side of the first screw rod 712. A protrusion 717 is provided on the side wall of the first slider 711. The protrusion 717 slides in the guide rail 716. The guide rail 716 supports the first slider 711 on the one hand and assists the first slider 711 to slide on the other hand.

[0064] Combination Figure 8 As shown, the second sliding device 72 includes a slide plate 721, a baffle 713, a motor fixing plate 714 and a guide rail 716 are all fixed on the slide plate 721, a second slide block 722 is provided in the middle of the bottom of the slide plate 721, a second screw rod 723 is penetrated inside the second slide block 722, one side of the second screw rod 723 is fixed to the inner wall of the detection platform 1, and the other side of the second screw rod 723 is connected to a second motor 724, the second screw rod 723 works under the drive of the second motor 724, and the second screw rod 723 drives the slide plate 721 to move while working, and the second motor 724 is located in a motor accommodating groove provided on the detection platform 1, and third slide blocks 725 are provided at both ends of the bottom of the slide plate 721, the third slide block 725 is fixed to the bottom of the slide plate 721, and a slide rail 726 is provided below the third slide block 725, and the third slide block slides on the slide rail 726, so when the third slide block 725 slides relative to the slide rail 726, the slide plate 721 can also be driven to move, and the slide rail 726 is fixed on the detection platform 1.

[0065] A bearing vibration detection method includes the following steps:

[0066] Step 1: Reset all mechanisms. At this time, the two half rings of the fixing ring 61 are separated, the second sliding device 72 is located at the side away from the fixing chuck 41, and the fastening device 42 is in the retracted state;

[0067] Step 2: The bearing 5 is integrally mounted on the fixed chuck 41. The claws 413 of the fixed chuck 41 fix the inner ring 51. At this time, since the outer ring 52 is in an unfixed state, when the fixed chuck 41 rotates, the bearing 5 is driven to rotate as a whole.

[0068] Step 3: The fastening device 42 starts to perform secondary fastening on the inner ring 51 under the drive of the cylinder 427. The piston rod of the cylinder 427 pushes the push plate 426 forward, thereby making the fixed claws 424 open outward in cooperation with the support rod 427. When the fixed claws 424 are fully opened, the side wall of the inner ring 51 is clamped for the second time to prevent the problem of position deviation during the rotation process.

[0069] Step 4: The second motor 724 starts working. Driven by the second motor 724, the second sliding device 72 drives the first sliding device 71 and the vibration detection device 6 thereon to slide toward the bearing 5. The movement stops when the fixing ring 61 is flush with the bearing 5.

[0070] Step 5: The first motor 715 starts working. Under the drive of the first motor 715, the first sliding device 71 drives the two half rings of the fixed ring 61 to move closer to each other. When the fixed ring 61 becomes a full ring, the first sliding device 71 stops moving. At this time, the vibration sensor 63 just contacts the surface of the outer ring 52.

[0071] Step 6: The fixing chuck 41 starts to work. At this time, the outer ring 52 has been fixed by the outer ring 64, so when the inner ring 51 rotates, the outer ring 52 does not rotate accordingly;

[0072] Step seven: The vibration sensor 63 starts to detect the vibration of the running bearing 5. When the bearing 5 has a vibration deviation, the vertical support rod 635 will vibrate accordingly. The sensing head 636 will transfer the pressure to the piezoelectric sensor 633 through the rigid spring 634. The piezoelectric sensor 633 will convert it into an electrical signal that can be received and displayed and transmit it to the display 31 through the sensor line 62.

[0073] Embodiment 2:

[0074] The fixed chuck 41 in the second embodiment is improved on the basis of the above embodiment, and the technical contents disclosed in the above embodiment are not described repeatedly, and the contents of the above disclosed embodiment also belong to the contents disclosed in the second embodiment.

[0075] One embodiment of the present invention, in combination with Fig. 9The fixed chuck 41 shown includes a chuck body 411, on which a plurality of slideways 412 are evenly provided, and claws 413 are provided in the slideways 412. The chuck body 411 in this embodiment is also driven by the power source in the driving box 2 to rotate. The main difference from the first embodiment is that a hollow receiving groove 418 is provided near the inner side of the claw 413, and a rotating block 419 is provided in the receiving groove 418. When working normally, the rotating block 419 is in the receiving groove 418. The rotating block 419 is rotatably connected to the claw 413 via a rotating shaft. A micro motor 4110 is provided on the end surface of the claw 413 and at the rotation connection between the rotating block 419 and the claw 413. The micro motor 4110 drives the rotating block 419 to flip relative to the claw 413. Therefore, the rotating block 419 can be controlled by the micro motor 4110 to flip out of the receiving groove 418 at any time according to the actual needs. Specifically, for example, when the claw 413 needs to When the width of the fixed inner ring 51 is small, the rotating block 419 is normally in the receiving groove 418. However, when the width of the inner ring 51 to be tightened by the claw 413 is large, the length of the claw 413 alone is not enough to cover the entire width of the inner ring 51. At this time, the micro motor 4110 is needed to control the rotating block 419 to flip out from the receiving groove 418, which plays the role of connecting the length of the claw 413. At the same time, the position of the rotating block 419 after flipping is flush with the tightening position of the claw 413, that is, That is to say, after the rotating block 419 is turned out, it is on the same horizontal plane as the claw 413, so the rotating block 419 can also be close to the inner diameter surface of the inner ring 51, and can cooperate with the claw 413 to clamp and fix. In addition, the claw 413 and the rotating block 419 are close to the surface of the bearing 5. Anti-slip pads 4111 are provided. The anti-slip pads 4111 and the anti-slip patterns 417 in Example 1 have the same function, which is to increase the friction between the inner diameter surface of the inner ring 51 and prevent slipping.

[0076] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bearing vibration detection device, comprising a detection platform (1), a drive housing (2) is provided on one side above the detection platform (1), a control panel (3) is provided above the drive housing (2), a fixed rotating device (4) is fixed to the side wall of the drive housing (2), a bearing (5) is fixed to the outer diameter surface of the fixed rotating device (4), and the characteristics are: The outer diameter surface of the bearing (5) is provided with a vibration detection device (6), the vibration detection device (6) fixes the bearing (5) and performs vibration detection, and the vibration detection device (6) is slidably connected to the detection platform (1) via a sliding device (7); The fixed rotating device (4) comprises a fixed chuck (41), and the driving housing (2) drives the fixed chuck (41) through the power source inside the driving housing (2) to complete the rotation and fastening and clamping tasks. A matching fastening device (42) is fixed in the middle of the inner side of the fixed chuck (41), and the fixed chuck (41) and the matching fastening device (42) cooperate with each other to perform double fixing on the bearing (5); The fixed chuck (41) comprises a chuck body (411), a plurality of slideways (412) are evenly arranged on the chuck body (411), claws (413) are arranged in the slideways (412), a first tightening block (414) is fixed to the end of the claw (413), a micro cylinder (415) is fixed inside the first tightening block (414), a second tightening block (416) is fixed to one side of the micro cylinder (415), and anti-slip grooves (417) are arranged at positions where the first tightening block (414) and the second tightening block (416) are close to the bearing (5). Alternatively, the fixed chuck (41) comprises a chuck body (411), a plurality of slideways (412) are evenly arranged on the chuck body (411), claws (413) are arranged in the slideways (412), and a first tightening block (414) is fixed to the end of the claw (413). ), a hollow receiving groove (418) is provided near the inner side of the claw (413), a rotating block (419) is provided in the receiving groove (418), the rotating block (419) and the claw (413) are rotatably connected via a rotating shaft, a micro motor (4110) is provided on the end surface of the claw (413) and at the rotation connection between the rotating block (419) and the claw (413), the micro motor (4110 drives the rotating block (419) to flip relative to the claw (413), the position of the rotating block (419) after flipping is flush with the tightening position of the claw (413), and the surfaces of the claw (413) and the rotating block (419) close to the bearing (5) are provided with anti-slip pads (4111); The matching fastening device (42) comprises a fixing seat (421), the fixing seat (421) is fixed on the fixing chuck (41) and is located between the clamping claws (413), a hollow sleeve (422) is provided on one side of the fixing seat (421), a bottom plate (423) is provided inside the hollow sleeve (422), a plurality of fixing claws (424) are evenly connected on the outer circle of the bottom plate (423), the fixing claws (424) and the bottom plate (423) are connected in a rotating manner, a supporting column (425) is provided on one side of the supporting column (425), a push plate (426) is provided on one side of the push plate (426) and the side wall of the fixing claw (424) is evenly connected. A support rod (427) is connected, and the support rod (427) and the fixed claw (424), and the support rod (427) and the push plate (426) are all rotatably connected via a rotating shaft. A cylinder (428) is fixed on one side of the push plate (426), and the piston rod portion of the cylinder (428) passes through the hollow sleeve (422) and is directly fixedly connected to the push plate (426). The cylinder sleeve portion of the cylinder (428) is fixed to the outer side of the hollow sleeve (422) via a fixing plate and a nut, and a plurality of openings (429) for accommodating the fixed claw (424) and the support rod (427) are evenly arranged on the circumferential wall surface of the hollow sleeve (422).

2. A bearing vibration detection device according to claim 1, characterized in that: The control panel (3) comprises a display (31) and a plurality of control buttons (32); The bearing (5) comprises an inner ring (51), an outer ring (52) is arranged on the outer diameter surface of the inner ring (51), and a plurality of balls (53) are evenly arranged between the inner ring (51) and the outer ring (52).

3. A bearing vibration detection device according to claim 1, characterized in that: The vibration detection device (6) comprises a fixed ring (61), wherein the fixed ring (61) is a full ring composed of two detachable half rings, a sensing line (62) is connected between the fixed ring (61) and the bottom of the control panel (3), and a plurality of vibration sensors (63) are evenly arranged on the inner diameter surface of the fixed ring (61).

4. A bearing vibration detection device according to claim 3, characterized in that: The vibration sensor (63) comprises a circular limiting tube (631), a sensing gasket (632) is provided at the bottom of the circular limiting tube (631), a piezoelectric sensor (633) is provided above the sensing gasket (632), a rigid spring (634) is sleeved on the outer diameter surface of the rod body of the piezoelectric sensor (633), a vertical support rod (635) is provided above the piezoelectric sensor (633), a sensing head (636) is provided at the top of the vertical support rod (635), the vertical support rod (635) is hollow inside, and the rod body of the piezoelectric sensor (633) is just located inside the hollow part of the vertical support rod (635).

5. A bearing vibration detection device according to claim 3, characterized in that: The sliding device (7) comprises a first sliding device (71), and a second sliding device (72) is provided below the first sliding device (71); The first sliding device (71) comprises a first sliding block (711), the first sliding block (711) is fixed to the bottom of the fixing ring (61), a first screw rod (712) is provided inside the first sliding block (711), the inner ends of the first screw rod (712) are connected and separated by a baffle (713) to support them, a motor fixing plate (714) is provided at the outer end of the first screw rod (712), a first motor (715) is provided on the motor fixing plate (714) and at a position connected to the first screw rod (712), a guide rail (716) is provided on one side of the first screw rod (712), and a protrusion (717) is provided on the side wall of the first sliding block (711), and the protrusion (717) slides in the guide rail (716).

6. A bearing vibration detection device according to claim 5, characterized in that: The second sliding device (72) comprises a slide plate (721), the baffle plate (713), the motor fixing plate (714) and the guide rail (716) are all fixed on the slide plate (721), a second slide block (722) is provided in the middle of the bottom of the slide plate (721), a second screw rod (723) is penetrated inside the second slide block (722), one side of the second screw rod (723) is fixed to the inner wall of the detection platform (1), the other side of the second screw rod (723) is connected to a second motor (724), the second motor (724) is located in a motor accommodating groove provided on the detection platform (1), third slide blocks (725) are provided at both ends of the bottom of the slide plate (721), a slide rail (726) is provided below the third slide block (725), the third slide block slides on the slide rail (726), and the slide rail (726) is fixed on the detection platform (1).

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