Slewing bearing gap detection device

Abstract

The invention relates to the technical field of bearing detection equipment, in particular to a slewing bearing gap detection device which comprises a supporting chamber, the top of the supporting chamber is fixedly connected with a platform, the top of the platform is rotatably connected with a rotary table, a fixed disc is arranged above the rotary table, and the top of the fixed disc is fixedly connected with a second motor. A fixing chamber is fixedly connected to the inner wall of the inner side of the supporting chamber, and a guide assembly is arranged on the inner side of the fixing chamber; a first motor drives a first gear to drive a second gear, a rotary disc transmission sliding column and a ball needle head are driven to extend and slide towards the outer side, the ball needle head is used for detecting a gap of a slewing bearing, an electric sliding rail drives a detection plate to be attached to the inner wall of an inner ring, and then a guide rod is stressed to incline; and at the moment, the inclined angle sensor is used for detecting the inclined angle of the guide disc so as to judge the use condition of the slewing bearing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing detection equipment, in particular to a slewing bearing gap detection device. BACKGROUND

[0002] The slewing bearing is also called rotary bearing, slewing bearing or rotary bearing, which is a large bearing capable of bearing axial force, radial force and overturning moment. It plays a core role as a "rotary joint" in a mechanical system. It is composed of inner and outer rings, rolling elements (steel balls / rollers), retainers, sealing rings, etc. Low-friction rotation is achieved through rolling elements.

[0003] The patent application with publication number CN117073612A discloses a slewing bearing gap detection device, which includes a base, multiple fixing mechanisms, a control device and a detection mechanism. The multiple fixing mechanisms are arranged on the base. The control device is arranged on the base and connected to the detection mechanism. The detection mechanism includes a rotary drive device, a cross rod assembly, a vertical rod assembly, a measuring assembly and two sets of limiting assemblies. The rotary drive device is arranged on the control device. The cross rod assembly is connected to the output shaft of the rotary drive device. The vertical rod assembly is movably arranged on the cross rod assembly. The measuring assembly and the two sets of limiting assemblies are arranged at the ends of the vertical rod assembly, and the two sets of limiting assemblies are located on the two sides of the measuring assembly. The slewing bearing gap detection device has the advantages of small data error and good data representativeness, thereby ensuring the accuracy of the detection data.

[0004] Although the above-mentioned patent uses a driving device, a cross rod assembly, a vertical rod assembly, a measuring assembly and two sets of limiting assemblies for gap detection, it achieves the effect of small data error and ensures data accuracy. However, considering that a slight misalignment may occur between the inner and outer rings of the slewing bearing after long-term use, the misalignment will increase the friction of the rolling elements and gradually increase the temperature and aggravate the wear, thereby aggravating the misalignment and seriously affecting the service life. Therefore, a slewing bearing gap detection device is proposed. SUMMARY

[0005] The present application aims to provide a slewing bearing gap detection device to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the slewing bearing gap detection device provided by the present application includes a support chamber, the top of which is fixedly connected with a platform, the top of which is rotatably connected with a turntable, the upper part of which is provided with a fixed disc, the top of which is fixedly connected with a No. 2 motor, the inner side of the support chamber is fixedly connected with a fixed chamber, and the inner side of the fixed chamber is provided with a guide assembly. The inner side of the fixed chamber is provided with an inner cylindrical frame, the guide assembly is arranged on the inner side of the inner cylindrical frame, the guide assembly comprises a guide rod, and the outer wall of the guide rod is fixedly connected with a first ball and a second ball; The outer wall of the fixed chamber is provided with a plurality of arcuate holes, the outer wall of the fixed chamber is fixedly connected with a plurality of extension plates, the plurality of extension plates are respectively located at one side of the plurality of arcuate holes, the top of the extension plate on one side is rotatably connected with a first connecting rod, one end of the first connecting rod away from the extension plate is rotatably connected with a second connecting rod, and the second connecting rod is sleeved on the outer wall of the second ball.

[0007] As preferred, the top of the platform on both sides is rotatably connected with a threaded column, the outer wall of the threaded column is threadedly connected with a sliding sheet, the bottom of the platform on one side between the two threaded columns is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a first gear through the platform.

[0008] As preferred, the top of the rotary table is provided with a plurality of strip-shaped grooves, the inner side of the strip-shaped groove is slidably connected with a sliding column, the top of the sliding column is fixedly connected with a detection needle, one end of the detection needle away from the sliding column is fixedly connected with a ball needle head, and the bottom of the sliding column is fixedly connected with a protruding column.

[0009] As preferred, the inner side of the rotary table is rotatably connected with a rotating disc, the bottom of the rotating disc is fixedly connected with a second gear, the second gear is meshingly connected with the first gear, the surface of the rotating disc is provided with a threaded groove, and the protruding column is slidably connected in the threaded groove.

[0010] As preferred, the top of the extension plate on the other side is rotatably connected with a third connecting rod, one end of the third connecting rod away from the extension plate is rotatably connected with a fourth connecting rod, one end of the fourth connecting rod away from the third connecting rod is sleeved on the outer wall of the second ball, and the end portions of the second connecting rod and the fourth connecting rod are combined to form a spherical inner wall matched with the outer wall of the second ball.

[0011] As preferred, the outer wall of the fixed chamber is fixedly connected with a third motor, the output end of the third motor is fixedly connected with a first rotating rod, one end of the first rotating rod away from the third motor is fixedly connected with a helical gear, the bottom periphery of the fixed chamber is fixedly connected with a plurality of stand columns, one end of the plurality of stand columns away from the fixed chamber is fixedly connected with a bottom disc, and the inner side top of the bottom disc is fixedly connected with a plurality of bevel angle sensors.

[0012] As preferred, the inner wall of the inner cylindrical frame is provided with an inner spherical surface, the first ball is movably connected in the inner spherical surface, the top of the inner cylindrical frame is fixedly connected with a helical rack, and the helical rack is meshingly connected with the helical gear.

[0013] As preferred, the bottom of the guide rod is fixedly connected with a guide disc, the position of the guide disc is matched with the position of the inclined angle sensor, the second ball is fixedly connected to the upper end of the guide rod, the top of the second ball is rotatably connected with a second rotating rod, and the second rotating rod is fixedly connected with an electric telescopic rod at the end away from the second ball.

[0014] As preferred, the outer wall of the electric telescopic rod is fixedly connected with a plurality of electric sliding rails, the positions of the electric sliding rails are distributed in staggered positions with the position of the sliding column, the top of the electric sliding rail is slidably connected with a detection plate, and the electric telescopic rod is fixedly connected to the output end of the second motor at the end away from the second rotating rod.

[0015] Compared with the prior art, the beneficial effects of the present application are: 1. In the slewing bearing gap detection device, the first motor drives the first gear to drive the second gear, and drives the rotating disc to drive the sliding column and the ball needle to expand and slide outward, and the ball needle is used to detect the gap of the slewing bearing.

[0016] 2. In the slewing bearing gap detection device, the detection plate is driven by the electric sliding rail to be attached to the inner wall of the inner ring, so that the guide rod is forced to tilt, and the guide disc is also tilted, and the inclined angle sensor is used to detect the tilt angle of the guide disc to determine the use of the slewing bearing.

[0017] 3. In the slewing bearing gap detection device, the electric telescopic rod is driven by the second motor to rotate, and at the same time drives the detection plate to rotate along the inner wall of the inner ring, and also drives the guide disc to tilt and rotate, so that the inclined angle sensor can collect the maximum tilt angle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole three-dimensional structure schematic diagram of the present application; Figure 2 It is a whole transverse cross-sectional schematic diagram of the present application; Figure 3 It is a whole longitudinal cross-sectional schematic diagram of the present application; Figure 4 It is a whole expanded three-dimensional structure schematic diagram of the present application; Figure 5 It is a three-dimensional structure schematic diagram of the turntable and the fixed chamber of the present application; Figure 6 It is a three-dimensional schematic diagram of the inside of the support chamber of the present application; Figure 7 It is a guide assembly structure schematic diagram of the present application; Figure 8 It is a rotating disc structure schematic diagram of the present application; The numbers in the figure are: 1, support chamber; 11, platform; 111, threaded column; 1111, sliding piece; 112, No. 1 motor; 113, No. 1 gear; 12, turntable; 121, strip-shaped slot; 122, sliding column; 1221, detection needle; 1222, ball needle; 1223, protruding column; 123, rotating disc; 1231, No. 2 gear; 1232, threaded slot; 13, fixed disc; 131, No. 2 motor; 2, fixed chamber; 21, arched hole; 22, extension plate; 221, No. 1 connecting rod; 222, No. 2 connecting rod; 223, No. 3 connecting rod; 224, No. 4 connecting rod; 23, No. 3 motor; 231, No. 1 rotating rod; 232, helical gear; 24, stand column; 241, base plate; 2411, inclined angle sensor; 25, inner cylindrical frame; 251, inner spherical surface; 252, helical rack; 3, guide assembly; 31, guide rod; 311, No. 1 ball; 312, No. 2 ball; 313, No. 2 rotating rod; 32, guide disc; 33, electric telescopic rod; 331, electric sliding rail; 332, detection plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-8 The present embodiment provides a slewing bearing gap detection device, which comprises a support chamber 1, the top of the support chamber 1 is fixedly connected with a platform 11, the top of the platform 11 is rotationally connected with a turntable 12, the upper part of the turntable 12 is provided with a fixed disc 13, the top of the fixed disc 13 is fixedly connected with a No. 2 motor 131, the inner side of the support chamber 1 is fixedly connected with a fixed chamber 2, the inner side of the fixed chamber 2 is provided with a guide assembly 3, the inner side of the fixed chamber 2 is provided with an inner cylindrical frame 25, the guide assembly 3 is arranged on the inner side of the inner cylindrical frame 25, and the guide assembly 3 comprises a guide rod 31, the outer wall of the guide rod 31 is fixedly connected with a No. 1 ball 311 and a No. 2 ball 312.

[0021] The outer wall of the threaded column 111 is threadedly connected with a sliding sheet 1111, one side bottom of the platform 11 between the two side threaded columns 111 is fixedly connected with a first motor 112, the output end of the first motor 112 is fixedly connected with a first gear 113 through penetrating the platform 11, the top of the rotating table 12 is provided with a plurality of strip-shaped grooves 121, the inner side of the strip-shaped groove 121 is slidably connected with a sliding column 122, the top of the sliding column 122 is fixedly connected with a detection needle 1221, the detection needle 1221 is fixedly connected with a ball needle head 1222 at the end away from the sliding column 122, the bottom of the sliding column 122 is fixedly connected with a protruding column 1223, the inner side of the rotating table 12 is rotatably connected with a rotating disc 123, the bottom of the rotating disc 123 is fixedly connected with a second gear 1231, the second gear 1231 is meshingly connected with the first gear 113, the surface of the rotating disc 123 is provided with a threaded groove 1232, and the protruding column 1223 is slidably connected in the threaded groove 1232.

[0022] For this description, the threaded groove 1232 is an equidistant threaded groove, and in the initial state, the distance between each ball needle head 1222 and the center of the rotating table 12 is the same, so that the moving distance of each ball needle head 1222 always remains synchronous when the threaded groove 1232 rotates with the rotating disc 123.

[0023] The outer wall of the fixed chamber 2 is provided with a plurality of arc-shaped holes 21, the outer wall of the fixed chamber 2 is fixedly connected with a plurality of extension plates 22, the plurality of extension plates 22 are respectively located at one side of the plurality of arc-shaped holes 21, one side extension plate 22 is rotatably connected with a first connecting rod 221 at the top, the first connecting rod 221 is rotatably connected with a second connecting rod 222 at the end away from the extension plate 22, the second connecting rod 222 is sleeved on the outer wall of the second sphere 312, the other side extension plate 22 is rotatably connected with a third connecting rod 223 at the top, the third connecting rod 223 is rotatably connected with a fourth connecting rod 224 at the end away from the extension plate 22, the fourth connecting rod 224 is sleeved on the outer wall of the second sphere 312 at the end away from the third connecting rod 223, the end portions of the second connecting rod 222 and the fourth connecting rod 224 are combined to form a spherical inner wall matched with the outer wall of the second sphere 312, the outer wall of the fixed chamber 2 is fixedly connected with a third motor 23, the output end of the third motor 23 is fixedly connected with a first rotating rod 231, the first rotating rod 231 is fixedly connected with a bevel gear 232 at the end away from the third motor 23, a plurality of stand columns 24 are fixedly connected with a bottom disc 241 at the end away from the fixed chamber 2, a plurality of inclined angle sensors 2411 are fixedly connected at the inner side top of the bottom disc 241, an inner spherical surface 251 is formed on the inner wall of the inner columnar frame 25, the first sphere 311 is movably connected in the inner spherical surface 251, a bevel gear rack 252 is fixedly connected at the top of the inner columnar frame 25 and is meshingly connected with the bevel gear 232.

[0024] The bottom of the guide rod 31 is fixedly connected with a guide disc 32, the position of the guide disc 32 is matched with the position of the inclined angle sensor 2411, the No. 2 sphere 312 is fixedly connected to the upper end of the guide rod 31, the top of the No. 2 sphere 312 is rotatably connected with a No. 2 rotating rod 313, the No. 2 rotating rod 313 is fixedly connected with an electric telescopic rod 33 at the end away from the No. 2 sphere 312, a plurality of electric sliding rails 331 are fixedly connected to the outer wall of the electric telescopic rod 33, the positions of the electric sliding rails 331 are distributed in a staggered manner with the position of the sliding column 122, and the top of the electric sliding rail 331 is slidably connected with a detection plate 332. The electric telescopic rod 33 is fixedly connected to the output end of the No. 2 motor 131 at the end away from the No. 2 rotating rod 313.

[0025] Therefore, when the gap of the slewing bearing needs to be detected, the worker places the slewing bearing on the platform 11, aligns the bolt holes around the slewing bearing with the threaded columns 111, and fixes the slewing bearing on the top of the platform 11 through the threaded columns 111. At this time, the driving of the No. 1 motor 112 drives the No. 1 gear 113 to rotate, which in turn drives the No. 2 gear 1231 to rotate, and the No. 2 gear 1231 drives the rotating disc 123 to rotate. In the process of rotating the rotating disc 123, the protruding column 1223 is expanded and slid outward along the strip-shaped groove 121 by the threaded groove 1232. At this time, the protruding column 1223 also drives the sliding column 122, the detection needle 1221 and the ball needle head 1222 to move inwardly to the slewing bearing, so as to detect the gap of the slewing bearing, and the obtained data is saved.

[0026] It should be noted that when it is necessary to ensure that the ball needle head 1222 matches the gap position of the slewing bearing after the slewing bearing is placed, the worker can rotate the threaded column 111 to make the sliding piece 1111 slide up and down, and in the same way, the up and down sliding of the sliding piece 1111 drives the slewing bearing to move up and down, so as to adjust the gap position of the slewing bearing.

[0027] In addition, when it is necessary to detect whether the inner and outer rings of the slewing bearing are dislocated, tilted or deviated, the slewing bearing is placed and fixed on the platform 11, and the position is adjusted through the threaded column 111, then the detection plates 332 are driven to slide outward by the electric slide rail 331 until the detection plates 332 stop against the inner wall of the inner ring of the slewing bearing. At this time, if the inner ring of the slewing bearing is dislocated, tilted or deviated, the thrust on each detection plate 332 will change after the electric slide rail 331 stops driving the detection plates 332, which will drive each detection plate 332 to tilt in different directions along with the tilting direction of the inner ring of the slewing bearing, and at the same time, will drive the electric telescopic rod 33, the guide rod 31 and the second rotating rod 313 to tilt to one side. At this time, the inclination angle of the guide rod 31 is the same as the inclination angle of the slewing bearing, and at the same time, the inclination of the guide disc 32 at the first ball 311 in the inner spherical surface 251 as the fulcrum will be driven by the inclination of the guide rod 31, and the inclination angle of the guide disc 32 will be collected by the inclined angle sensor 2411, and the inclination and dislocation data between the inner and outer rings of the slewing bearing will be obtained by conversion in the control console. If the data is within the threshold range, subsequent repair will be performed, and if the data exceeds the maximum threshold range, the slewing bearing cannot be used continuously.

[0028] In addition, considering that the clearance between the inner and outer rings of the slewing bearing or the dislocation, tilt or deviation of the inner ring are relatively fine data support, the position may not be found during detection. As described above, when the detection plates 332 are against the inner wall of the inner ring, the slewing bearing and the detection plates 332 are lifted along with the electric telescopic rod 33 and the threaded column 111, at this time, the second motor 131 is started and drives the electric telescopic rod 33 to rotate, at this time, the detection plates 332 will slide along the inner wall of the inner ring, if the inner ring is in a tilted and dislocated state, the detection plates 332 will drive the guide rod 31, the electric telescopic rod 33 and the second rotating rod 313 to rotate together with the first ball 311 as the fulcrum, and at the same time, the guide disc 32 will also rotate after being tilted, at this time, the maximum angle of rotation of the guide disc 32 can be collected by the plurality of inclined angle sensors 2411.

[0029] It should be noted that the first connecting rod 221, the second connecting rod 222, the third connecting rod 223 and the fourth connecting rod 224 are used for support effect during the rotation of the guide rod 31, for limiting the maximum inclination angle of the guide rod 31.

[0030] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A slewing bearing clearance detection device, comprising a support chamber (1), characterized in that: The top of the support chamber (1) is fixedly connected to a platform (11), the top of the platform (11) is rotatably connected to a turntable (12), a fixed disk (13) is provided above the turntable (12), the top of the fixed disk (13) is fixedly connected to a second motor (131), the inner wall of the support chamber (1) is fixedly connected to a fixed chamber (2), and a guide assembly (3) is provided on the inner side of the fixed chamber (2); An inner columnar frame (25) is provided on the inner side of the fixed chamber (2), and the guide assembly (3) is provided on the inner side of the inner columnar frame (25). The guide assembly (3) includes a guide rod (31), and the outer wall of the guide rod (31) is fixedly connected to a first ball (311) and a second ball (312); The outer wall of the fixed chamber (2) is provided with a plurality of arched holes (21), and the outer wall of the fixed chamber (2) is fixedly connected with a plurality of extension plates (22), and the plurality of extension plates (22) are respectively located on one side of the plurality of arched holes (21). The top of the extension plate (22) on one side is rotatably connected to a No. 1 connecting rod (221), and the No. 1 connecting rod (221) is rotatably connected to a No. 2 connecting rod (222) at one end away from the extension plate (22), and the No. 2 connecting rod (222) is sleeved on the outer wall of the No. 2 sphere (312).

2. The slewing bearing clearance detection device according to claim 1, characterized in that: The tops of both sides of the platform (11) are rotatably connected to threaded columns (111), and the outer walls of the threaded columns (111) are threadedly connected to sliding sheets (1111). The bottom of one side of the platform (11) between the threaded columns (111) on both sides is fixedly connected to a No. 1 motor (112), and the output end of the No. 1 motor (112) is fixedly connected to a No. 1 gear (113) by passing through the platform (11).

3. The slewing bearing clearance detection device according to claim 2, characterized in that: The top of the turntable (12) is provided with a plurality of strip grooves (121), the inner sides of the strip grooves (121) are slidably connected to sliding columns (122), the top of the sliding column (122) is fixedly connected to a detection needle (1221), the end of the detection needle (1221) away from the sliding column (122) is fixedly connected to a ball needle head (1222), and the bottom of the sliding column (122) is fixedly connected to a protruding column (1223).

4. The slewing bearing clearance detection device according to claim 3, characterized in that: The inner side of the turntable (12) is rotatably connected to a turntable (123), the bottom of the turntable (123) is fixedly connected to a second gear (1231), the second gear (1231) is meshedly connected to the first gear (113), a thread groove (1232) is provided on the surface of the turntable (123), and the protruding column (1223) is slidably connected in the thread groove (1232).

5. The slewing bearing clearance detection device according to claim 4, characterized in that: The top of the extension plate (22) on the other side is rotatably connected to a No. 3 connecting rod (223), and the No. 3 connecting rod (223) is rotatably connected to a No. 4 connecting rod (224) at one end away from the extension plate (22). The No. 4 connecting rod (224) is sleeved on the outer wall of the No. 2 sphere (312) at one end away from the No. 3 connecting rod (223), and the inner wall of the combination of the end portions of the No. 2 connecting rod (222) and the No. 4 connecting rod (224) forms a spherical inner wall that fits the outer wall of the No. 2 sphere (312).

6. The slewing bearing clearance detection device according to claim 5, characterized in that: A third motor (23) is fixedly connected to the outer wall of the fixed chamber (2), an output end of the third motor (23) is fixedly connected to a first rotating rod (231), an end of the first rotating rod (231) away from the third motor (23) is fixedly connected to a bevel gear (232), a plurality of columns (24) are fixedly connected to the bottom peripheral position of the fixed chamber (2), a plurality of the columns (24) are fixedly connected to a chassis (241) at an end away from the fixed chamber (2), and a plurality of bevel sensors (2411) are fixedly connected to the inner top of the chassis (241).

7. The slewing bearing clearance detection device according to claim 6, characterized in that: An inner spherical surface (251) is formed on the inner wall of the inner column frame (25), and the first sphere (311) is movably connected in the inner spherical surface (251). A bevel rack (252) is fixedly connected to the top of the inner column frame (25), and the bevel rack (252) is meshed with the bevel gear (232).

8. The slewing bearing clearance detection device according to claim 7, characterized in that: The bottom of the guide rod (31) is fixedly connected to a guide plate (32), the position of the guide plate (32) matches the position of the bevel sensor (2411), the second sphere (312) is fixedly connected to the upper end of the guide rod (31), the top of the second sphere (312) is rotatably connected to the second rotating rod (313), and the second rotating rod (313) is fixedly connected to an electric telescopic rod (33) at one end away from the second sphere (312).

9. The slewing bearing clearance detection device according to claim 8, characterized in that: The outer wall of the electric telescopic rod (33) is fixedly connected to a plurality of electric slide rails (331), the positions of the electric slide rails (331) and the positions of the sliding columns (122) are staggered, the tops of the electric slide rails (331) are slidably connected to a detection plate (332), and the end of the electric telescopic rod (33) away from the second rotating rod (313) is fixedly connected to the output end of the second motor (131).

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