Noise detection device of thrust cylindrical roller bearing for high-speed machine tool

Abstract

The utility model discloses a noise detection device of a thrust cylindrical roller bearing for a high-speed machine tool, which comprises a detection box, the upper surface of the detection box is open, the upper side of the detection box is hinged with a sealing cover, the sealing cover is respectively provided with a control switch and a noise detector, and the detection end of the noise detector is arranged on the inner side of the sealing cover. The display end of the noise detector is arranged on the outer side of the sealing cover; supporting legs are arranged at the four corners of the lower surface of the detection box, a servo motor is installed at the center of the lower surface of the detection box, an output shaft of the servo motor penetrates into the detection box and is connected with a rotating shaft through a coupler, the rotating shaft is hollow, and a plurality of first sliding grooves communicating with the interior of the rotating shaft are evenly formed in the peripheral side surface of the lower portion of the rotating shaft. In the whole detection process, the mounting and dismounting processes of the thrust cylindrical roller bearing are simple, convenient and rapid, the whole noise detection time is shortened, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production detection of thrust cylindrical roller bearings, in particular to a noise detection device for thrust cylindrical roller bearings used in high-speed machine tools. Background Art

[0002] In modern manufacturing, the stable operation of high-speed machine tools is crucial for ensuring machining accuracy. As a key component, the operating condition of thrust cylindrical roller bearings directly impacts machine tool performance. Existing noise detection devices are often difficult to operate, and the installation and removal of bearings is complex and time-consuming. This not only prolongs the overall noise detection process but also reduces work efficiency. Therefore, we propose a noise detection device for thrust cylindrical roller bearings used in high-speed machine tools. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a noise detection device for thrust cylindrical roller bearings for high-speed machine tools. The installation and disassembly process of the thrust cylindrical roller bearings in the entire detection process is simple and fast, which shortens the overall time of noise detection, greatly improves work efficiency, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool, comprising a detection box, the upper surface of which is open, and a sealing cover is hingedly connected to the upper side of the detection box, a control switch and a noise detector are respectively installed on the sealing cover, the detection end of the noise detector is arranged on the inner side of the sealing cover, and the display end of the noise detector is arranged on the outer side of the sealing cover; feet are provided at the four corners of the lower surface of the detection box, and a servo motor is installed at the center of the lower surface of the detection box, the output shaft of the servo motor penetrates into the detection box and is connected to the rotor through a coupling. The shaft is connected, the interior of the rotating shaft is hollow, and a plurality of first sliding grooves connected to the interior of the rotating shaft are evenly opened on the outer peripheral side surface of the lower part of the rotating shaft. A sliding support block for fixing the inner ring of the thrust cylindrical roller bearing is slidingly arranged in the first sliding groove. A cam corresponding to the sliding support block is provided for rotation inside the rotating shaft. A rotating rod is fixedly provided on the upper surface of the cam, and the top end of the rotating rod passes through the upper surface of the rotating shaft. The rotating rod, cam and rotating shaft are coaxially arranged. Two sliding racks are symmetrically slidably provided on the inner upper surface of the detection box, and semicircular grooves corresponding to the outer ring of the thrust cylindrical roller bearing are opened on the opposite side surfaces of the two sliding racks.

[0005] As a preferred technical solution of the present invention, a sealing gasket corresponding to the opening of the detection box is provided on the inner surface of the sealing cover.

[0006] As a preferred technical solution of the present invention, two fixing blocks are symmetrically fixed on the upper outer surface of the rotating rod, and screw holes are opened on the upper surface of the fixing blocks and the upper surface of the rotating shaft. Fixing bolts are threadedly connected to the screw holes.

[0007] As a preferred technical solution of the present invention, a rotating handle is provided on the outer peripheral side surface of the top end of the rotating rod.

[0008] As a preferred technical solution of the present invention, limiting grooves are provided on both side surfaces of the first sliding groove inside the rotating shaft, and limiting blocks slidingly arranged in the limiting grooves are symmetrically installed on both side surfaces of the sliding support block.

[0009] As a preferred technical solution of the present invention, a return spring is provided in the limiting groove, and the return spring is provided between the inner surface of the limiting groove and the limiting block.

[0010] As a preferred technical solution of the present invention, the inner upper surface of the detection box is provided with two groups of second slide grooves corresponding to the two sliding racks respectively, and the lower surface of each sliding rack is symmetrically provided with two sliders corresponding to the second slide grooves. A driving screw is slidably provided in each of the two groups of second slide grooves, and the driving screw is threadedly connected to the screw hole provided on the side surface of the slider. One end of the driving screw passes through the outer surface of the detection box and is connected to the output shaft of the driving motor installed on the detection box through a coupling.

[0011] As an optimal technical solution of the present invention, the drive motor is provided with one, and one end of the two drive screws away from the drive motor passes through the outer surface of the detection box and is installed with a synchronous pulley, and a synchronous belt is provided between the two synchronous pulleys.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: before detection, the thrust cylindrical roller bearing is first sleeved onto the sliding support block of the rotating shaft, and then the cam is driven to rotate by the rotating rod, and the cam pushes the sliding support block outward. Several sliding support blocks move outward synchronously to fix the inner ring of the thrust cylindrical roller bearing, and then the two sliding frames are moved toward the middle to fix the outer ring of the thrust cylindrical roller bearing, and then the sealing cover is covered, and the noise detector and the servo motor are turned on by the control switch. The servo motor drives the thrust cylindrical roller bearing to rotate through the rotating shaft, and the noise detector detects the noise value of the thrust cylindrical roller bearing during rotation and displays it on its external display end for staff to view and judge the noise value of the thrust cylindrical roller bearing. After the detection is completed, the sliding support block is returned to the inner side of the rotating shaft by moving the sliding frame outward and operating the rotating rod and the cam, and the thrust cylindrical roller bearing can be removed. The installation and disassembly process of the thrust cylindrical roller bearing is simple and fast during the entire detection process, which shortens the overall time of noise detection and greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a side structural diagram of the present utility model;

[0015] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the bottom-up structure of the present invention;

[0017] Figure 5 This is a rear view structural diagram of the utility model;

[0018] Figure 6 This is a schematic diagram of the internal structure of the rotating shaft of the utility model.

[0019] In the figure: 1 detection box, 2 sealing cover, 3 sealing gasket, 4 noise detector, 5 control switch, 6 support leg, 7 rotating shaft, 8 servo motor, 9 rotating rod, 10 fixing block, 11 fixing bolt, 12 rotating handle, 13 sliding support block, 14 cam, 15 limit block, 16 return spring, 17 sliding frame, 18 driving screw, 19 driving motor, 20 synchronous pulley, 21 synchronous belt. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-6 The utility model provides a technical solution: a noise detection device for thrust cylindrical roller bearings for high-speed machine tools, comprising a detection box 1, the upper surface of the detection box 1 is open, and a sealing cover 2 is hinged on the upper side of the detection box 1. After the sealing cover 2 is covered on the detection box 1, the entire interior of the detection box 1 is in a sealed state. The detection box 1 and the sealing cover 2 are both made of materials with strong sound insulation performance, and the inner surface of the sealing cover 2 is provided with a sealing gasket 3 corresponding to the opening of the detection box 1, which further improves its sound insulation performance and reduces the influence of external environmental noise on the noise detection of thrust cylindrical roller bearings for high-speed machine tools.

[0022] A control switch 5 and a noise detector 4 are respectively installed on the sealing cover 2. The noise detector 4 can be a commonly used decibel meter, etc. The detection end of the noise detector 4 is arranged on the inner side of the sealing cover 2, and the display end of the noise detector 4 is arranged on the outer side of the sealing cover 2, and corresponding sealing rings are also provided at the corresponding perforations on the noise detector 4 and the sealing cover 2.

[0023] The four corners of the lower surface of the detection box 1 are provided with supporting feet 6, which are used to raise the height of the detection box 1 so as to facilitate the installation of a servo motor 8 at the center of its lower surface. The output shaft of the servo motor 8 penetrates the detection box 1 and is connected to the rotating shaft 7 through a coupling. The interior of the rotating shaft 7 is hollow, and a plurality of first slide grooves communicating with the interior are evenly opened on the lower outer peripheral surface of the rotating shaft 7. A sliding support block 13 for fixing the inner ring of the thrust cylindrical roller bearing is slidingly provided in the first slide groove. A cam 14 corresponding to the sliding support block 13 is provided for rotation inside the rotating shaft 7. A fixed device is provided on the upper surface of the cam 14. A rotating rod 9 is provided, the top end of which passes through the upper surface of the rotating shaft 7. The rotating rod 9, cam 14 and rotating shaft 7 are coaxially arranged. When the rotating rod 9 rotates, the cam 14 can be driven to rotate. The rotation of the cam 14 pushes the sliding support block 13 outward or allows it to return to the inside of the rotating shaft 7. Before testing, the thrust cylindrical roller bearing is first sleeved onto the sliding support block 13 of the rotating shaft 7. Then, the rotating rod 9 drives the cam 14 to rotate. The cam 14 pushes the sliding support block 13 outward. The synchronous outward movement of several sliding support blocks 13 can fix the inner ring of the thrust cylindrical roller bearing.

[0024] Two sliding racks 17 are symmetrically provided on the upper surface of the inner part of the detection box 1 for sliding. The opposite side surfaces of the two sliding racks 17 are provided with semicircular grooves corresponding to the outer ring of the thrust cylindrical roller bearing. The two sliding racks 17 are moved toward the middle to fix the outer ring of the thrust cylindrical roller bearing, and then the sealing cover 2 is covered. The noise detector 4 and the servo motor 8 are turned on by the control switch 5. The servo motor 8 drives the thrust cylindrical roller bearing to rotate through the rotating shaft 7. The noise detector 4 detects the noise value of the thrust cylindrical roller bearing during rotation and displays it on its external display end for the staff to view and judge the noise value of the thrust cylindrical roller bearing. After the detection is completed, the sliding support block 13 is returned to the inner side of the rotating shaft 7 by moving the sliding rack 17 outward and operating the rotating rod 9 and the cam 14. The thrust cylindrical roller bearing can be removed. The installation and disassembly process of the thrust cylindrical roller bearing is simple and fast during the entire detection process, which shortens the overall time of noise detection and greatly improves work efficiency.

[0025] Optionally, the side surfaces of the semicircular groove and the sliding support block 13 are provided with rubber pads, which can improve the firmness of the fixation and provide buffering protection for the side surfaces of the semicircular groove and the sliding support block 13 and the inner and outer rings of the thrust cylindrical roller bearing.

[0026] According to the preferred technical solution, two fixing blocks 10 are symmetrically fixed on the upper outer surface of the rotating rod 9. Screw holes are provided on the upper surface of the fixing block 10 and the upper surface of the rotating shaft 7. Fixing bolts 11 are connected to the inner threads of the screw holes. The fixing bolts 11 can be used to fix the fixing block 10 and the rotating rod 9 so that they cannot rotate, thereby fixing the cam 14 so that the sliding support block 13 can be kept at the outermost side to fix the inner ring of the thrust cylindrical roller bearing; the position of the screw hole on the rotating shaft 7 corresponds to the position where the cam 14 protrusion moves to the first slide groove.

[0027] Optionally, multiple groups of screw holes can be provided on the rotating shaft 7, and the protrusions of the cam 14 can be correspondingly set to multiple different positions and lengths. In this way, the cam 14 can fix the sliding support block 13 at different positions through different protrusions, and thus be suitable for the inner rings of thrust cylindrical roller bearings of different specifications, greatly improving the universality of the detection device.

[0028] According to a preferred technical solution, a rotating handle 12 is provided on the outer peripheral side surface of the top end of the rotating rod 9, which makes it more convenient to operate the rotating rod 9.

[0029] According to a preferred technical solution, limiting grooves are provided on both side surfaces of the first slide groove inside the rotating shaft 7, and limiting blocks 15 slidingly arranged in the limiting grooves are symmetrically installed on both side surfaces of the sliding support block 13. When the sliding support block 13 slides in the first slide groove, the limiting block 15 also slides in the limiting groove, which can limit it to prevent it from falling out of the first slide groove.

[0030] According to the preferred technical solution, a reset spring 16 is provided in the limit groove, and the reset spring 16 is provided between the inner surface of the limit groove and the limit block 15. When the cam 14 is reset by rotating the rotating rod 9, the reset spring 16 can push the limit block 15 and the sliding support block 13 to reset and retract to the inside of the rotating shaft 7 through its elastic force, which makes it more convenient to disassemble the thrust cylindrical roller bearing.

[0031] The preferred technical solution is that two groups of second slide grooves corresponding to the two sliding frames 17 are provided on the inner upper surface of the detection box 1, and each group of second slide grooves includes two second slide grooves on the same line. The lower surface of each sliding frame 17 is symmetrically provided with two sliders corresponding to the second slide grooves, and a driving screw 18 is slidably provided in each of the two groups of second slide grooves. The driving screw 18 is threadedly connected to the screw hole provided on the side surface of the slider. The thread directions of the two sections of the driving screw 18 in the two second slide grooves on the same line are opposite, so that when the driving screw 18 rotates, the two sliding frames 17 can be moved toward or away from each other, thereby fixing or loosening the outer ring of the thrust cylindrical roller bearing.

[0032] One end of the drive screw 18 passes through the outer surface of the detection box 1 and is connected to the output shaft of the drive motor 19 installed on the detection box 1 through a coupling. The drive motor 19 drives the drive screw 18 to rotate, thereby driving the slider and the two sliding frames 17 to move toward or away from each other, making the fixing and removal of the thrust cylindrical roller bearing more convenient and quick.

[0033] The drive motor 19, the noise detector 4, the servo motor 8, etc. are all electrically connected to the control switch 5, and the drive motor 19, the noise detector 4, the servo motor 8, etc. used in this application are all electronic components commonly used in the prior art. Their specific structures, working principles, and circuit connections are all well-known technologies and will not be described in detail here.

[0034] The preferred technical solution is that the drive motor 19 is provided with one, and one end of the two drive screws 18 away from the drive motor 19 passes through the outer surface of the detection box 1 and is installed with a synchronous pulley 20, and a synchronous belt 21 is provided between the two synchronous pulleys 20. A drive screw 18 is driven to rotate by a drive motor 19, and the drive screw 18 then drives the other drive screw 18 to rotate synchronously through the synchronous pulley 20 and the synchronous belt 21, so that the two sides of the two sliding frames 17 can be moved synchronously, and the fixation is more stable and convenient.

[0035] The undisclosed parts of the present invention are all prior art, and their specific structures, materials and working principles will not be described in detail. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool, comprising a detection box (1), characterized in that: The upper surface of the detection box (1) is open, and a sealing cover (2) is hinged on the upper side of the detection box (1). A control switch (5) and a noise detector (4) are respectively installed on the sealing cover (2). The detection end of the noise detector (4) is arranged on the inner side of the sealing cover (2), and the display end of the noise detector (4) is arranged on the outer side of the sealing cover (2). Support legs (6) are provided at the four corners of the lower surface of the detection box (1), and a servo motor (8) is installed at the center of the lower surface of the detection box (1). The output shaft of the servo motor (8) penetrates into the detection box (1) and is connected to the rotating shaft (7) through a coupling. The interior of the rotating shaft (7) is hollow, and the lower peripheral side surface of the rotating shaft (7) is hollow. A plurality of first slide grooves are evenly provided and communicate with the interior thereof, a sliding support block (13) for fixing the inner ring of the thrust cylindrical roller bearing is slidingly provided in the first slide groove, a cam (14) corresponding to the sliding support block (13) is rotatably provided inside the rotating shaft (7), a rotating rod (9) is fixedly provided on the upper surface of the cam (14), the top end of the rotating rod (9) passes through the upper surface of the rotating shaft (7), the rotating rod (9), the cam (14) and the rotating shaft (7) are coaxially arranged, and two sliding racks (17) are symmetrically slidably provided on the inner upper surface of the detection box (1), and semicircular grooves corresponding to the outer ring of the thrust cylindrical roller bearing are provided on the opposite side surfaces of the two sliding racks (17).

2. The noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool according to claim 1, characterized in that: The inner surface of the sealing cover (2) is provided with a sealing gasket (3) corresponding to the opening of the detection box (1).

3. The noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool according to claim 1, characterized in that: Two fixing blocks (10) are symmetrically fixed on the outer surface of the upper portion of the rotating rod (9), and screw holes are provided on the upper surface of the fixing blocks (10) and the upper surface of the rotating shaft (7), and fixing bolts (11) are threadedly connected in the screw holes.

4. The noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool according to claim 1, characterized in that: A rotating handle (12) is provided on the outer peripheral side surface of the top end of the rotating rod (9).

5. The noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool according to claim 1, characterized in that: Limiting grooves are provided on both side surfaces of the first sliding groove inside the rotating shaft (7), and limiting blocks (15) slidingly arranged in the limiting grooves are symmetrically mounted on both side surfaces of the sliding support block (13).

6. The noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool according to claim 5, characterized in that: A return spring (16) is provided in the limiting groove, and the return spring (16) is provided between the inner surface of the limiting groove and the limiting block (15).

7. The noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool according to claim 1, characterized in that: The inner upper surface of the detection box (1) is provided with two groups of second slide grooves corresponding to the two sliding frames (17), and the lower surface of each sliding frame (17) is symmetrically provided with two sliders corresponding to the second slide grooves. A driving screw (18) is slidably provided in each of the two groups of second slide grooves. The driving screw (18) is threadedly connected to the screw hole provided on the side surface of the slider. One end of the driving screw (18) passes through the outer surface of the detection box (1) and is connected to the output shaft of the driving motor (19) installed on the detection box (1) through a coupling.

8. The noise detection device for a thrust cylindrical roller bearing for a high-speed machine tool according to claim 7, characterized in that: The drive motor (19) is provided with one end, and one end of the two drive screws (18) away from the drive motor (19) passes through the outer surface of the detection box (1) and is installed with a synchronous pulley (20), and a synchronous belt (21) is provided between the two synchronous pulleys (20).

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