Tooth profile detection device for slewing bearing turntable bearing

Abstract

The utility model discloses a slewing bearing turntable bearing tooth profile detection device, which comprises an operation table, a supporting disc is arranged on the operation table, a positioning piece is arranged in the middle of the supporting disc, a strip-shaped hole is formed in the operation table, and a driving piece capable of driving an outer ring of a slewing bearing turntable bearing to rotate is arranged in the strip-shaped hole in a sliding manner. An adjustable detection piece is installed on the operation table and comprises an elastic column with the adjustable height, a detection plate is arranged at the telescopic end of the elastic column, and a pressure sensor is arranged between the elastic column and the detection plate. According to the slewing bearing turntable bearing tooth profile detection device, the slewing bearing can be fixed, the outer tooth profile of the slewing bearing can be detected when the outer ring of the slewing bearing is driven to rotate, so that whether the outer tooth profile is flush or not is detected, defective teeth can be positioned according to the change of the waveform in the detection process of a pressure sensor, and the detection accuracy is improved. And subsequent remachining of defective teeth is facilitated, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing detection, in particular to a slewing support turntable bearing tooth shape detection device. Background Art

[0002] Slewing bearings are large bearings with special structures that integrate multiple functions such as support, rotation, transmission, and fixation. They are large bearings that can withstand comprehensive loads and can withstand large axial and radial loads and overturning moments at the same time. Slewing bearings generally have mounting holes, internal or external gears, lubricating oil holes, and sealing devices, so that the main machine design structure is compact, easy to guide, and easy to maintain. Slewing bearings include four series: gearless, external and internal gear four-point contact ball bearings, double-row angular contact ball bearings, crossed cylindrical roller bearings, crossed tapered roller bearings, and three-row cylindrical roller composite bearings.

[0003] The external gear slewing bearing has external gears on the outer ring. In order to ensure the rotation accuracy of the slewing bearing, the tooth shape of the external gear needs to be detected. The existing detection method is the meshing rolling comprehensive measurement method, which takes the gear as a transmission element of the rotary motion, meshes and rolls with the measuring gear under the theoretical installation center distance, and measures its comprehensive deviation. However, this measurement method cannot detect a single tooth shape, and cannot locate defective teeth, resulting in the inability to reprocess them according to the defects of the tooth shape. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a slewing bearing turntable bearing tooth shape detection device, which can fix the slewing bearing and detect its external tooth shape when the outer ring of the slewing bearing is driven to rotate, so as to detect whether the external tooth shape is flat, and can locate the defective teeth according to the change of the waveform during the detection process of the pressure sensor, which helps to reprocess the defective teeth later. The operation is simple and easy to use, and the problems in the background technology can be effectively solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slewing support turntable bearing tooth shape detection device, comprising an operating table, a support plate is provided on the operating table, a positioning piece is provided in the middle of the support plate, a strip hole is opened on the operating table, a driving piece that can drive the outer ring of the slewing support turntable bearing to rotate is slidably provided inside the strip hole, an adjustable detection piece is installed on the operating table, the detection piece includes an elastic column with adjustable height, a detection plate is provided at the telescopic end of the elastic column, and a pressure sensor is provided between the elastic column and the detection plate.

[0006] As a preferred technical solution of the utility model, a plurality of evenly distributed slide grooves are opened on the upper surface of the support plate, and the positioning member includes a positioning block slidably arranged inside the slide groove. A screw is provided in the middle of the support plate, and a threaded barrel is threadedly connected to the screw, and a bearing is installed on the side of the threaded barrel, and a driving rod is connected to the outer peripheral side of the bearing through a hinge, and the end of the driving rod away from the bearing is connected to the positioning block through a hinge.

[0007] As a preferred technical solution of the utility model, the driving member includes a slider slidably arranged inside the strip-shaped hole, a servo motor is installed on the slider, and a gear is arranged on the output shaft of the servo motor.

[0008] As a preferred technical solution of the utility model, a fastening bolt is threadedly connected inside the screw hole at the bottom edge of the sliding block.

[0009] As a preferred technical solution of the utility model, a slot is provided at the lower end of the support plate, and an adjustment plate is movably inserted into the slot, a telescopic rod is provided on the adjustment plate, and a fixing seat for installing an elastic column is provided at the telescopic end of the telescopic rod.

[0010] As a preferred technical solution of the utility model, a guide rod is movably inserted into the through hole on the side of the fixing seat, and one end of the guide rod is connected to the detection plate.

[0011] As a preferred technical solution of the utility model, positioning bolts are installed at the bottom of the operating table corresponding to the middle of the adjustment plate.

[0012] As a preferred technical solution of the utility model, a tightening knob is provided at the upper end of the side surface of the fixed end of the telescopic rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The slewing bearing turntable tooth shape detection device of the utility model example can fix the slewing bearing and detect its external tooth shape when driving the outer ring of the slewing bearing to rotate, so as to detect whether the external tooth shape is flush, and can locate defective teeth according to the change of the waveform during the pressure sensor detection process, so as to help the subsequent reprocessing of the defective teeth. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure viewed from above;

[0017] Figure 3 for Figure 1 Schematic diagram of the local structure.

[0018] In the figure: 1 operating table, 2 supporting plate, 3 sliding groove, 31 positioning block, 4 screw rod, 41 threaded tube, 42 bearing, 43 driving rod, 5 adjusting plate, 51 positioning bolt, 6 telescopic rod, 61 fastening knob, 62 fixing seat, 7 elastic column, 71 pressure sensor, 72 detection plate, 73 guide rod, 8 sliding block, 81 fastening bolt, 9 servo motor, 91 gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: a slewing bearing turntable bearing tooth shape detection device, comprising an operating table 1, a supporting plate 2 is arranged on the operating table 1, a positioning member is arranged in the middle of the supporting plate 2, a strip hole is opened on the operating table 1, a driving member capable of driving the outer ring of the slewing bearing turntable bearing to rotate is slidably arranged inside the strip hole, an adjustable detection member is installed on the operating table 1, the driving member drives the outer ring of the slewing bearing turntable bearing to rotate, the detection member detects the teeth of the driven slewing bearing turntable bearing, the detection member comprises an elastic column 7 with adjustable height, a detection plate 72 is arranged at the telescopic end of the elastic column 7, and a pressure sensor 71 is arranged between the elastic column 7 and the detection plate 72, the pressure sensor 71 can detect the pressure between the tooth and the detection plate 72, and judge whether the tooth shape has a convexity or a concaveity according to the pressure change curve when each tooth passes through the detection plate 72, thereby detecting the tooth shape of the entire slewing bearing turntable bearing.

[0021] Furthermore, a plurality of evenly distributed slide grooves 3 are provided on the upper surface of the support plate 2, and the positioning member includes a positioning block 31 slidably arranged inside the slide groove 3. A screw rod 4 is provided in the middle of the support plate 2, and a threaded barrel 41 is threadedly connected to the screw rod 4. A bearing 42 is installed on the side of the threaded barrel 41, and a driving rod 43 is connected to the outer peripheral side of the bearing 42 through a hinge. The end of the driving rod 43 away from the bearing 42 is connected to the positioning block 31 through a hinge. The slewing bearing of the rotary table is placed on the support plate 2, and the threaded barrel 41 is rotated. The threaded barrel 41 moves downward along the screw rod 4 during rotation. At this time, the threaded barrel 41 drives the positioning block 31 to move in the slide groove 3 through the driving rod 43 until the positioning block 31 presses and fixes the inner ring of the slewing bearing of the rotary table.

[0022] Furthermore, the driving member includes a slider 8 slidably arranged inside the strip hole, a servo motor 9 is installed on the slider 8, a gear 91 is provided on the output shaft of the servo motor 9, and a fastening bolt 81 is threadedly connected to the screw hole at the bottom edge of the slider 8. The slider 8 is moved along the strip hole, and the slider 8 drives the gear 91 to rotate through the servo motor 9 until the gear 91 engages with the teeth of the slewing support turntable bearing, and then the fastening bolt 81 is rotated to fix the slider 8, thereby completing the fixation of the gear 91.

[0023] Furthermore, a slot is provided at the lower end of the support plate 2, and an adjustment plate 5 is movably inserted inside the slot, a telescopic rod 6 is provided on the adjustment plate 5, and a fixed seat 62 for installing an elastic column 7 is provided at the telescopic end of the telescopic rod 6. A positioning bolt 51 is installed at the bottom corresponding to the middle of the operating table 1 and the adjusting plate 5. The adjusting plate 5 is moved, and the adjusting plate 5 drives the telescopic rod 6, the fixed seat 62, the elastic column 7 and the detection plate 72 to move until the detection plate 72 contacts and applies a certain pressure to the teeth of the slewing bearing turntable bearing. At this time, the elastic column 7 is shortened by force, and the pressure sensor 71 detects the pressure between the two. The positioning bolt 51 is rotated to position the adjustment plate 5, thereby positioning the detection plate 72.

[0024] Furthermore, a guide rod 73 is movably inserted into the through hole on the side of the fixing seat 62 , and one end of the guide rod 73 is connected to the detection plate 72 , which can play a role of guiding and supporting the detection plate 72 .

[0025] Furthermore, a tightening knob 61 is provided on the upper side of the fixed end of the telescopic rod 6. When different heights of the teeth need to be detected, the length of the telescopic rod 6 is adjusted, and then the tightening knob 61 is rotated to fix the telescopic rod 6, thereby adjusting the height of the detection plate 72, and then repeating the detection steps.

[0026] The pressure sensor 71 and servo motor 9 used in the present invention are commonly used electronic components in the prior art. Their working methods and circuit structures are well-known technologies and are not described here. The pressure sensor 71 and servo motor 9 are both electrically connected to the external PLC controller.

[0027] When using:

[0028] Place the slewing bearing on the support plate 2, rotate the threaded barrel 41, and move downward along the screw rod 4 during the rotation. At this time, the threaded barrel 41 drives the positioning block 31 to move in the slide groove 3 through the driving rod 43 until the positioning block 31 presses and fixes the inner ring of the slewing bearing;

[0029] The slider 8 is moved along the strip hole, and the slider 8 drives the gear 91 to rotate through the servo motor 9 until the gear 91 is engaged with the teeth of the slewing bearing turntable, and then the fastening bolt 81 is rotated to fix the slider 8, thereby completing the fixing of the gear 91;

[0030] Move the adjustment plate 5, which drives the telescopic rod 6, the fixing seat 62, the elastic column 7 and the detection plate 72 to move until the detection plate 72 contacts and applies a certain pressure to the teeth of the slewing bearing turntable. At this time, the elastic column 7 is shortened by force, and the pressure sensor 71 detects the pressure between the two. The positioning bolt 51 is rotated to position the adjustment plate 5, thereby positioning the detection plate 72.

[0031] The servo motor 9 is controlled to rotate, the servo motor 9 drives the gear 91 to rotate, the gear 91 drives the teeth of the slewing bearing turntable bearing to rotate, and when the teeth pass through the pressure sensor 71, the pressure sensor 71 detects the pressure change between the teeth and the elastic column 7, and judges whether the tooth shape has a convexity or a concave according to the pressure change curve when each tooth passes through the detection plate 72;

[0032] When it is necessary to detect different heights of the teeth, adjust the length of the telescopic rod 6, and then turn the tightening knob 61 to fix the telescopic rod 6, thereby adjusting the height of the detection plate 72, and then repeat the previous step to detect different heights of the teeth.

[0033] The utility model can fix the slewing turntable bearing, and can detect its external tooth shape when driving the outer ring of the slewing turntable bearing to rotate, so as to detect whether the external tooth shape is flat, and can locate the defective teeth according to the change of the waveform during the detection process of the pressure sensor 71, and then help to reprocess the defective teeth later. The operation is simple and easy to use.

[0034] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is 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 utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A slewing bearing turntable bearing tooth profile detection device, comprising an operating table (1), characterized in that: The operating table (1) is provided with a support plate (2), a positioning member is provided in the middle of the support plate (2), a strip hole is provided on the operating table (1), a driving member capable of driving the outer ring of the slewing bearing turntable to rotate is slidably provided inside the strip hole, an adjustable detection member is installed on the operating table (1), the detection member comprises an elastic column (7) whose height can be adjusted, a detection plate (72) is provided at the telescopic end of the elastic column (7), and a pressure sensor (71) is provided between the elastic column (7) and the detection plate (72).

2. The slewing bearing turntable bearing tooth profile detection device according to claim 1, characterized in that: The upper surface of the support plate (2) is provided with a plurality of evenly distributed slide grooves (3), the positioning member comprises a positioning block (31) slidably arranged inside the slide groove (3), a screw rod (4) is provided in the middle of the support plate (2), a threaded barrel (41) is threadedly connected to the screw rod (4), a bearing (42) is installed on the side of the threaded barrel (41), and a driving rod (43) is connected to the outer peripheral side of the bearing (42) via a hinge, and an end of the driving rod (43) away from the bearing (42) is connected to the positioning block (31) via a hinge.

3. The slewing bearing turntable bearing tooth profile detection device according to claim 1, characterized in that: The driving member comprises a sliding block (8) slidably arranged inside the strip-shaped hole, a servo motor (9) is mounted on the sliding block (8), and a gear (91) is provided on the output shaft of the servo motor (9).

4. The slewing bearing turntable bearing tooth profile detection device according to claim 3, characterized in that: A fastening bolt (81) is threadedly connected inside the screw hole at the bottom edge of the sliding block (8).

5. The slewing bearing turntable bearing tooth profile detection device according to claim 1, characterized in that: A slot is provided at the lower end of the support plate (2), and an adjustment plate (5) is movably inserted into the slot. A telescopic rod (6) is provided on the adjustment plate (5), and a fixing seat (62) for mounting an elastic column (7) is provided at the telescopic end of the telescopic rod (6).

6. The slewing bearing turntable bearing tooth profile detection device according to claim 5, characterized in that: A guide rod (73) is movably inserted into the through hole on the side of the fixing seat (62), and one end of the guide rod (73) is connected to the detection plate (72).

7. The slewing bearing turntable bearing tooth profile detection device according to claim 5, characterized in that: Positioning bolts (51) are installed at the bottom of the operating table (1) corresponding to the middle of the adjustment plate (5).

8. The slewing bearing turntable bearing tooth profile detection device according to claim 5, characterized in that: A tightening knob (61) is provided at the upper end of the side surface of the fixed end of the telescopic rod (6).

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