Bearing positioning device for bearing fault diagnosis
By designing a positioning device for bearing fault diagnosis, the problem that existing devices can only locate the inner ring or outer ring separately is solved, all-round diagnosis and multi-model adaptation of bearings are realized, and the convenience of inspection is improved.
Patent Information
- Application Number
- CN202422888968.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing bearing positioning devices can only position the inner ring or the outer ring, which makes it inconvenient to check during fault diagnosis.
A bearing positioning device for bearing fault diagnosis is designed, which includes a base and a sleeve. The side wall of the sleeve has a sliding hole, a sliding rod is connected to the sliding hole, and the end of the sliding rod is fixed to the positioning rod. The sliding rod is driven to slide in the sliding hole by a propulsion mechanism to achieve clamping and positioning of the inner ring or outer ring of the bearing.
It realizes all-round diagnosis and detection of bearings, facilitates the positioning of bearings of different models, and improves the adaptability of the device and the convenience of inspection.
Smart Images
Figure CN223376925U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing diagnosis auxiliary positioning devices, in particular to a bearing positioning device for bearing fault diagnosis. Background Art
[0002] Bearings are critical components in mechanical equipment, and their operating condition directly impacts the performance and safety of the entire equipment. When unusual noises, elevated temperatures, or other abnormalities occur during operation, the bearings typically require disassembly for troubleshooting. Bearing fault diagnosis involves using a range of techniques and methods to detect and identify bearing anomalies. These include checking the bearing's dimensional accuracy, rotational accuracy, internal clearance, and the condition of components such as mating surfaces, raceways, cages, and seals.
[0003] During the diagnosis process, the bearing needs to be positioned, but current positioning devices can usually only position the inner ring or outer ring of the bearing, which makes inspection inconvenient during fault diagnosis.
[0004] Therefore, a bearing positioning device for bearing fault diagnosis is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a bearing positioning device for bearing fault diagnosis, aiming to solve or improve at least one of the above technical problems.
[0006] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a bearing positioning device for bearing fault diagnosis, comprising a base, a sleeve disposed on the top of the base, a plurality of sliding holes circumferentially formed on the side wall of the sleeve, a sliding rod slidably connected in the sliding hole, the sliding rod being perpendicular to the axis of the sleeve, and a positioning rod being fixedly connected to one end of the sliding rod extending out of the sliding hole;
[0007] A propulsion mechanism is provided in the sleeve, and the propulsion mechanism is connected to one end of the plurality of sliding rods away from the positioning rod. The propulsion mechanism is used to drive the sliding rods to slide in the sliding holes, so that the plurality of positioning rods clamp and position the inner ring or outer ring of the bearing.
[0008] Optionally, the propulsion mechanism includes a conical block located in the sleeve, a plurality of sliding grooves are opened on the side wall of the conical block, a slider is slidably connected in the sliding groove, the slider is fixed to the end of the sliding rod away from the positioning rod, the sliding groove and the slider are both inverted T-shaped in the cross-section along the diameter direction of the sleeve, and a driving assembly is provided on the sleeve, and the driving assembly is connected to the conical block.
[0009] Optionally, the drive assembly includes a screw, which is threadedly connected to one end of the sleeve, and the screw extends into the sleeve and is rotatably connected to a propulsion block, and the propulsion block is fixed to the conical block.
[0010] Optionally, a plurality of limiting grooves are formed on the side wall of the propulsion block, a plurality of limiting bars are fixedly connected to the inner wall of the sleeve, and the plurality of limiting grooves and the plurality of limiting bars are arranged in one-to-one correspondence and are slidably connected.
[0011] Optionally, two support plates are fixedly connected to the top of the base, and the two sides of the sleeve are rotatably connected to the support plates through rotating shafts. A driving assembly is provided on any of the support plates, and the driving assembly is connected to the rotating shaft and is used to drive the rotating shaft to rotate.
[0012] Optionally, the drive assembly includes a motor fixedly connected to the support plate, a cavity is opened in the support plate, the output shaft of the motor extends into the cavity and is fixedly connected to a large gear, the rotating shaft extends into the cavity and is fixedly connected to a small gear, and the large gear is meshed with the small gear.
[0013] Optionally, the positioning rod is parallel to the axis of the sleeve, and buffer pads are fixedly connected to the inner and outer sides of the positioning rod respectively.
[0014] Optionally, a handle is fixedly connected to one end of the screw located outside the sleeve.
[0015] The utility model discloses the following technical effects: a plurality of positioning rods are arranged around the outside of the sleeve, and the sliding rod is pushed to slide in the sliding hole by a propulsion mechanism, so that the length of the sliding rod extending out of the sliding hole can be adjusted, thereby making the plurality of positioning rods approach or move away from the axis of the sleeve at the same time, and adjusting the distance between the positioning plate and the axis of the sleeve; thereby, the inner ring or outer ring of the bearing can be clamped and positioned as needed, which is convenient for all-round diagnosis and detection of the bearing; at the same time, different types of bearings can also be clamped and positioned, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of the structure of the utility model when clamping and positioning the outer ring of the bearing;
[0018] Figure 2 This is a schematic diagram of the structure of the utility model when clamping and positioning the inner ring of the bearing;
[0019] Figure 3 This is a schematic diagram of the structure of the propulsion mechanism in the present utility model;
[0020] Figure 4 It is a longitudinal cross-sectional view of the conical block of the utility model along its axis;
[0021] Figure 5 This is a schematic structural diagram of the limiting strip and limiting groove in the utility model;
[0022] Figure 6 This is a schematic diagram of the internal structure of the hollow cavity of the utility model.
[0023] In the figure: 1. base; 2. sleeve; 3. slide rod; 4. positioning rod; 5. bearing; 6. tapered block; 7. slide groove; 8. slider; 9. screw; 10. push block; 11. limit groove; 12. limit bar; 13. support plate; 14. motor; 15. large gear; 16. small gear; 17. buffer pad; 18. handle; 19. cavity. DETAILED DESCRIPTION
[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.
[0025] The following is an explanation of the relevant professional terms; bearings are a critical component in modern mechanical equipment. Their primary function is to support rotating mechanical parts, reduce friction during their movement, and ensure rotational accuracy. A bearing consists of four main components: an inner ring, an outer ring, rolling elements, and a cage. The inner ring mates with the shaft and typically rotates with it. The outer ring mates with the bearing seat and primarily provides support. The rolling elements are typically located between the inner and outer rings and evenly distributed by the cage. The shape, size, and number of rolling elements directly impact the performance and life of the bearing. The cage ensures even distribution of the rolling elements, preventing them from falling out, guiding their rotation, and providing lubrication.
[0026] Existing methods for detecting bearing faults include auditory detection, touch detection, olfactory detection, vibration signal detection, ultrasonic emission detection, etc. When a bearing exhibits abnormal conditions such as abnormal noise, vibration, and temperature increase, it usually needs to be disassembled for fault detection.
[0027] In existing diagnostics, checking bearing dimensional accuracy, rotational accuracy, internal clearance, and the condition of components such as the mating surfaces, raceways, cages, and seals is crucial for determining bearing performance. This careful inspection ensures stable equipment operation and improves efficiency. Dimensional accuracy checks include ensuring that inner and outer diameters, widths, and other dimensions conform to original specifications. Rotational accuracy measures runout during rotation to determine whether the bearing maintains optimal operating condition. Internal clearance is also crucial. Excessive clearance can cause vibration and noise during operation, impacting equipment performance. Use specialized tools or measuring instruments to check for variations in the distance between the inner and outer rings of the bearing. The condition of components such as the mating surfaces, raceways, cages, and seals also requires inspection. Surface wear, cracks, and erosion can affect bearing life. Carefully inspect rolling elements, raceways, cages, and flange surfaces for damage, deformation, or abnormalities. These detailed inspections can help determine bearing condition and prevent minor issues from ignoring major problems.
[0028] The more critical a bearing is, the more meticulous its diagnostic inspection must be. High-precision, high-load equipment places even stricter demands on bearings; even the slightest damage can compromise overall performance. Therefore, meticulous inspection is crucial, ensuring every indicator meets requirements.
[0029] In one embodiment of the prior art, a bearing positioning device for bearing fault diagnosis is provided, comprising a base, wherein two fixed columns are fixedly connected to the top of the base, and a positioning box is installed on the top of each fixed column. A fixing assembly is installed inside the positioning box, and the fixing assembly includes a first rack and a second rack. The first rotating rod is rotatably connected to the inside of the positioning box, and the second rotating rod is rotatably connected to the inside of the first rotating rod. A second rotating gear is fixedly installed on the outside of the second rotating rod, and a second rack is installed inside the positioning box and below the second rotating gear. The second rack is meshed with the second rotating gear, and the first rotating gear is fixedly connected to the outside of the first rotating rod. A first rack is installed inside the positioning box and below the first rotating gear. The first rack is meshed with the first rotating gear, and equidistant limit blocks are installed inside the positioning box and on both sides of the first rack and the second rack. Both the first rack and the second rack structures are arc-shaped structures. A second electric telescopic rod is fixedly connected to the bottom of the positioning box, and a processing assembly is fixedly connected to the output end of the second electric telescopic rod.
[0030] The bottom of the positioning box is provided with a cavity for use with the second electric telescopic rod and the processing component. The bottom of the positioning box and both sides of the processing component are provided with two sliding grooves.
[0031] The interior of the fixed column is fixedly connected with a first electric telescopic rod, and the output end of the first electric telescopic rod is fixedly connected with the positioning box.
[0032] A fixed box is fixedly connected to one side of the positioning box, a stepper motor is fixedly connected to the inside of the fixed box, an output end of the stepper motor is fixedly connected to the first bevel gear, a second bevel gear is rotatably connected to the inside of the fixed box and located on one side of the first bevel gear, the second bevel gear is meshed with the first bevel gear, the second bevel gear is fixedly connected to the first rotating rod, the second rotating rod passes through one end of the second bevel gear and is fixedly connected to the third bevel gear, the third bevel gear is meshed with the first bevel gear, and the rotation directions of the first rotating gear and the second rotating gear are opposite.
[0033] The inside of the base is slidably connected to the dust collecting bin, and two limiting slide rails are provided inside the base and below the dust collecting bin. Rollers are installed inside the limiting slide rails, and the tops of the rollers are connected to the dust collecting bin. A handle for use with the dust collecting bin is installed on the outside of the base, and equidistantly distributed through holes are installed inside the base and on the top of the dust collecting bin.
[0034] In one embodiment of the prior art, an automatic conveying device for bearing fault diagnosis is provided, including a driving cylinder, a rotating shaft is rotatably connected to the center of the bottom of the inner cavity of the driving cylinder through a bearing, the top of the rotating shaft extends to the outside of the driving cylinder and is fixedly connected to a carrying plate through a connecting plate, and the top of the carrying plate is evenly provided with positioning grooves in a ring shape, a rotating motor is fixedly installed on the left side of the bottom of the inner cavity of the driving cylinder, the output end of the rotating motor is fixedly connected to a main pulley, the outer surface of the rotating shaft is sleeved with a slave pulley, the main pulley and the slave pulley are connected by a belt drive, the right side of the driving cylinder is slidingly connected to the carrying plate, the right side of the top of the carrying plate is fixedly connected to an L-shaped plate, and the bearing fault diagnosis instrument body is fixedly installed by screws at the top of the inner surface of the L-shaped plate and at a position corresponding to the positioning groove.
[0035] The front and rear positions on the right side of the driving cylinder are fixedly connected with slide rails, and the outer surface of the slide rails is slidably connected to the inner surface of the bearing plate.
[0036] The front and back sides of the bearing plate are both threadedly connected with limit bolts, and opposite ends of the two limit bolts pass through the bearing plate and fit tightly with the connection points of the slide rails.
[0037] The upper and lower positions on the right side of the driving cylinder are fixedly connected to the limit plates, and the outer surface of the limit plates is fixedly connected to the connection point of the slide rail.
[0038] A buffer pad is bonded to the inner surface of the positioning groove, and a cylinder door is movably connected to the front surface of the driving cylinder through a hinge.
[0039] Support columns are fixedly connected to the left and right sides of the top of the driving cylinder. The bottom of the carrying plate is annularly provided with an annular groove for use with the support columns. The outer surface of the support column is slidably connected to the inner surface of the annular groove.
[0040] A rubber pad is bonded to the bottom of the driving cylinder, and the thickness of the rubber pad is 5mm.
[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0042] Reference Figures 1-6 The utility model provides a bearing positioning device for bearing fault diagnosis, comprising a base 1, a sleeve 2 is provided on the top of the base 1, a plurality of sliding holes are opened in the circumferential direction of the side wall of the sleeve 2, a sliding rod 3 is slidably connected in the sliding hole, the sliding rod 3 is perpendicular to the axis of the sleeve 2, and a positioning rod 4 is fixed to one end of the sliding rod 3 extending out of the sliding hole;
[0043] A propulsion mechanism is provided in the sleeve 2, which is connected to one end of the multiple sliding rods 3 away from the positioning rod 4. The propulsion mechanism is used to drive the sliding rods 3 to slide in the sliding hole, so that the multiple positioning rods 4 clamp and position the inner ring or outer ring of the bearing 5.
[0044] Multiple positioning rods 4 are arranged around the outside of the sleeve 2, and the sliding rod 3 is pushed to slide in the sliding hole by the propulsion mechanism, so that the length of the sliding rod 3 extending out of the sliding hole can be adjusted, and then multiple positioning rods 4 are simultaneously close to or away from the axis of the sleeve 2, and the distance between the positioning rod 4 and the axis of the sleeve 2 is adjusted; thereby, the inner ring or outer ring of the bearing 5 can be clamped and positioned as needed, which is convenient for all-round diagnosis and detection of the bearing 5; at the same time, different types of bearings can also be clamped and positioned, thereby improving the adaptability of the device.
[0045] When positioning the inner ring of the bearing 5, first make the distance between the positioning rod 4 and the axis of the sleeve 2 smaller than the radius of the inner ring of the bearing 5, then put the inner ring of the bearing 5 outside the multiple positioning rods 4, and push the multiple sliding rods 3 to slide outward at the same time through the propulsion mechanism, so that the positioning rod 4 is close to the inner ring of the bearing 5 until it touches the inner ring of the bearing 5 for positioning; when positioning the outer ring of the bearing 5, first make the distance between the positioning rod 4 and the axis of the sleeve 2 larger than the radius of the outer ring of the bearing 5, place the outer ring of the bearing 5 among the multiple positioning rods 4, and then push the multiple sliding rods 3 to slide inward at the same time through the propulsion mechanism, so that the positioning rod 4 is close to the outer ring of the bearing 5 until it touches the inner ring of the bearing 5 for positioning.
[0046] In some optional embodiments, the propulsion mechanism includes a conical block 6 located in the sleeve 2, and a plurality of sliding grooves 7 are opened on the side wall of the conical block 6. A slider 8 is slidably connected in the sliding groove 7. The slider 8 is fixed to the end of the slide rod 3 away from the positioning rod 4. The sliding groove 7 and the slider 8 are both inverted T-shaped in the cross-section along the diameter direction of the sleeve 2. A driving assembly is provided on the sleeve 2, and the driving assembly is connected to the conical block 6.
[0047] The groove depth of the slide groove 7 on the conical block 6 along the axis of the sleeve 2 is the same at all locations, so the slide groove 7 is set at an angle. When the conical block 6 moves back and forth along the axis of the sleeve 2, an inclined thrust is applied to the slider 8. The inclined thrust is decomposed into horizontal force and vertical force. The vertical force acts on the slide rod 3 to realize the sliding of the slide rod 3 in the slide hole; by making the slide groove 7 and the slider 8 in an inverted T-shape in the cross-section along the diameter direction of the sleeve 2, the slider 8 can be prevented from falling out of the slide groove 7.
[0048] In some optional embodiments, the drive assembly includes a screw 9, which is threadedly connected to one end of the sleeve 2. The screw 9 extends into the sleeve 2 and is rotatably connected to a propulsion block 10, which is fixed to the conical block 6.
[0049] The screw rod 9 is rotated, and the screw rod 9 and the sleeve 2 are threadedly rotated, thereby pushing the propulsion block 10 to move back and forth in the sleeve 2.
[0050] In some optional embodiments, the sidewall of the propulsion block 10 is provided with a plurality of limiting grooves 11, and the inner wall of the sleeve 2 is fixedly connected to a plurality of limiting bars 12. The plurality of limiting grooves 11 and the plurality of limiting bars 12 are arranged in a one-to-one correspondence and slidably connected. The provision of the limiting grooves 11 and the limiting bars 12 improves the limiting effect of the propulsion block 10, allowing it to move forward and backward along the axis of the sleeve 2.
[0051] In some optional embodiments, two support plates 13 are fixed to the top of the base 1, and the two sides of the sleeve 2 are rotatably connected to the support plates 13 through rotating shafts. A driving assembly is provided on any of the support plates 13, and the driving assembly is connected to the rotating shaft and is used to drive the rotating shaft to rotate.
[0052] In some optional embodiments, the drive assembly includes a motor 14 fixedly connected to the support plate 13, a cavity 19 is opened in the support plate 13, the output shaft of the motor 14 extends into the cavity 19 and is fixedly connected to a large gear 15, the rotating shaft extends into the cavity 19 and is fixedly connected to a small gear 16, and the large gear 15 is meshed with the small gear 16.
[0053] The motor 14 can rotate forward and reverse, and the shaft can be rotated 90 degrees by the motor 14, so that the axis of the bearing 5 is perpendicular to the ground or kept horizontal with the ground, thereby facilitating the bearing 5 to maintain a suitable detection orientation.
[0054] In some optional embodiments, the positioning rod 4 is parallel to the axis of the sleeve 2, and a buffer pad 17 is fixedly connected to the inner and outer sides of the positioning rod 4. The buffer pad 17 can be made of a material such as rubber. The buffer pad 17 can prevent the bearing 5 from being pinched and can also increase the friction between the bearing 5 and the anti-slip performance.
[0055] The side close to the axis of the sleeve 2 is the inner side, and the side away from the axis of the sleeve 2 is the outer side.
[0056] In some optional embodiments, a handle 18 is fixedly connected to one end of the screw rod 9 outside the sleeve 2 .
[0057] As an additional embodiment, baffles are fixed on the inner and outer sides of the positioning rod 4 respectively, and the baffles are perpendicular to the positioning rod 4. When the positioning rod 4 clamps and positions the bearing 5, the end face of the bearing 5 can rest on the baffle, so that the baffle limits the clamping position of the bearing 5.
[0058] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.
[0059] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.
Claims
1. A bearing positioning device for bearing fault diagnosis, characterized by: The invention comprises a base (1), a sleeve (2) is provided on the top of the base (1), a plurality of sliding holes are opened in the circumferential direction of the side wall of the sleeve (2), a sliding rod (3) is slidably connected in the sliding hole, the sliding rod (3) is perpendicular to the axis of the sleeve (2), and a positioning rod (4) is fixed to one end of the sliding rod (3) extending out of the sliding hole; A propulsion mechanism is provided in the sleeve (2), and the propulsion mechanism is connected to one end of the plurality of sliding rods (3) away from the positioning rod (4). The propulsion mechanism is used to drive the sliding rods (3) to slide in the sliding hole, so that the plurality of positioning rods (4) clamp and position the inner ring or outer ring of the bearing (5).
2. The bearing positioning device for bearing fault diagnosis according to claim 1, characterized in that: The propulsion mechanism includes a conical block (6) located in the sleeve (2), a plurality of sliding grooves (7) are provided on the side wall of the conical block (6), a slider (8) is slidably connected in the sliding groove (7), the slider (8) is fixedly connected to the end of the slide rod (3) away from the positioning rod (4), the sliding groove (7) and the slider (8) are both inverted T-shaped in the cross section along the diameter direction of the sleeve (2), and a driving assembly is provided on the sleeve (2), and the driving assembly is connected to the conical block (6).
3. The bearing positioning device for bearing fault diagnosis according to claim 2, characterized in that: The driving assembly includes a screw (9) which is threadedly connected to one end of the sleeve (2). The screw (9) extends into the sleeve (2) and is rotatably connected to a propulsion block (10). The propulsion block (10) is fixedly connected to the conical block (6).
4. The bearing positioning device for bearing fault diagnosis according to claim 3, characterized in that: The side wall of the propulsion block (10) is provided with a plurality of limiting grooves (11), the inner wall of the sleeve (2) is fixed with a plurality of limiting strips (12), and the plurality of limiting grooves (11) and the plurality of limiting strips (12) are arranged in a one-to-one correspondence and are slidably connected.
5. The bearing positioning device for bearing fault diagnosis according to claim 1, characterized in that: Two support plates (13) are fixedly connected to the top of the base (1), and both sides of the sleeve (2) are rotatably connected to the support plates (13) via rotating shafts. A driving component is provided on any of the support plates (13), and the driving component is connected to the rotating shaft and is used to drive the rotating shaft to rotate.
6. The bearing positioning device for bearing fault diagnosis according to claim 5, characterized in that: The driving assembly comprises a motor (14) fixedly connected to the support plate (13); a cavity (19) is provided in the support plate (13); an output shaft of the motor (14) extends into the cavity (19) and is fixedly connected to a large gear (15); the rotating shaft extends into the cavity (19) and is fixedly connected to a small gear (16); the large gear (15) is meshed with the small gear (16).
7. The bearing positioning device for bearing fault diagnosis according to claim 1, characterized in that: The positioning rod (4) is parallel to the axis of the sleeve (2), and buffer pads (17) are fixedly connected to the inner and outer sides of the positioning rod (4) respectively.
8. The bearing positioning device for bearing fault diagnosis according to claim 3, characterized in that: One end of the screw rod (9) located outside the sleeve (2) is fixedly connected to a handle (18).