CN116295180A - Angular contact bearing protrusion detection device - Google Patents

Abstract

The invention discloses an angular contact bearing protruding amount detection device which comprises a working platform, wherein an upper driving mechanism is arranged above the working platform, a lower driving mechanism is arranged below the working platform, the upper driving mechanism is connected with a detection mechanism, and the detection mechanism is arranged above the working platform and is positioned right above the lower driving mechanism. The beneficial effects of the invention are as follows: the protrusion amount detection of the opposite surface DF mounting angular contact bearing is realized through the matching of the upper driving mechanism and the detection mechanism; the protrusion amount of the back-to-back DB mounting angular contact bearing is detected through the cooperation of the lower driving mechanism and the detection mechanism; through the arrangement of the second motor, the rotating block and the third motor and the speed reducer, the inner ring of the angular contact bearing is driven to rotate, the deflection amplitude of the inner ring of the angular contact bearing relative to the outer ring can be reduced, and the detection precision of the protruding amount of the angular contact bearing is improved; the protrusion detection device can detect the protrusion of the angular contact bearings with inner rings of different sizes and has high practicability.

Description

Angular contact bearing protrusion detection device

Technical Field

The invention relates to the technical field of bearing detection, in particular to an angular contact bearing bulge detection device.

Background

The angular contact bearing, namely the angular contact ball bearing, can bear radial load and axial load at the same time and can work at a higher rotating speed. The protrusion amount of the angular contact ball is also called as grinding amount, and refers to the distance that the end face of the inner ring of the bearing protrudes from the end face of the outer ring at the same end face of the bearing after the preload is applied to the single bearing. The inner circular end face is a "+" value when protruding, and a "+" value when recessed, and the protruding amount can affect various performances of the bearing.

The angular contact ball bearing is mainly used in occasions with high precision and high rotating speed, so that the installation link is important, the trouble brought in installation can be greatly reduced through the design of the protrusion amount during bearing production, even if a customer cannot install the bearing, the larger function of the angular contact ball bearing can be played, and the bearing can play the operation level of application. The two common installation modes of the angular contact bearing are face-to-face DF installation and back-to-back DB installation, when the face DF is installed, the load action center is positioned in the center line of the bearing, the installation mode has simple structure and convenient disassembly and assembly, and when the shaft is heated and stretched, the bearing play is reduced, and the bearing is easy to be blocked, so that special attention is paid to the adjustment of the bearing play; when the back-to-back DB is installed, the load action center is positioned outside the center line of the bearing, the span of the force action point is larger, so the rigidity of the cantilever end is larger, when the shaft is heated and stretched, the bearing play is increased, and the bearing cannot be blocked and damaged. Whether in face-to-face DF or back-to-back DB, it is desirable to detect the amount of protrusion to ensure angular bearing performance. The conventional angular contact bearing bulge detection device can only detect angular contact bearings in a single installation mode, and can only detect contact bearings of inner rings with one specification and size, so that the practicability is relatively poor.

Disclosure of Invention

The invention aims to provide an angular contact bearing protrusion detection device which is used for solving the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the angular contact bearing protruding amount detection device comprises a working platform, wherein an upper driving mechanism is arranged above the working platform, a lower driving mechanism is arranged below the working platform, the upper driving mechanism is connected with a detection mechanism, and the detection mechanism is arranged above the working platform and is positioned right above the lower driving mechanism;

the detection mechanism comprises a second connecting plate, the second connecting plate is horizontally arranged on the upper driving mechanism, a balancing weight supporting seat is fixed above the second connecting plate, a balancing weight is arranged above the balancing weight supporting seat, the cross section of the balancing weight is round, two supporting rods taking the center of circle of the balancing weight as a symmetry center are arranged on the side edges of the balancing weight, the supporting rods are vertically fixed on the balancing weight supporting seat, two end portions of the supporting rods are connected with a connecting rod, a linear displacement sensor which is vertically arranged is arranged in the middle of the connecting rod, a lower end test head of the linear displacement sensor is in butt joint with the upper end center of the balancing weight, and a second top connecting seat is arranged at the lower end of the conical block.

Further preferably, the upper end of the balancing weight is cylindrical, and the lower end of the balancing weight is provided with a conical block, so that the balancing weight can rotate conveniently; the diameter of the conical block gradually decreases from top to bottom, so that the balancing weight is convenient to install on the balancing weight supporting seat.

Further preferably, the balancing weight supporting seat is of a stepped cylindrical structure, and the diameter size of the upper end of the balancing weight supporting seat is larger than that of the lower end of the balancing weight supporting seat, so that the balancing weight supporting seat is convenient to install and fix on the second connecting plate; the balancing weight supporting seat is provided with a conical hole matched with the conical block and used for installing the balancing weight.

Further preferably, a second plug is arranged in the second plug connecting seat and can be inserted into an inner ring of the angular contact bearing, so that the positioning of the angular contact bearing is realized.

Further preferably, the upper driving mechanism comprises a first mounting plate, the first mounting plate is vertically fixed on the working platform, a first motor which is vertically arranged is arranged at the upper end of the first mounting plate, a ball screw which is vertically arranged is connected to the output shaft end of the lower end of the first motor, the first motor can drive the screw rod of the ball screw to rotate, and the nut of the ball screw is driven to do vertical linear motion, so that the detection mechanism is driven to move up and down; the nut of the ball screw is connected with a first connecting plate, and the first connecting plate is connected with a second mounting plate which is horizontally arranged and used for mounting the detection mechanism; the second motor is erected on the second mounting plate near the upper side of the first connecting plate, the second motor is vertically arranged, the output shaft end of the lower end of the second motor is connected with a rotating block, the rotating block can be driven to rotate through the second motor, and further the balancing weight is driven to rotate.

Further preferably, a round hole matched with the balancing weight is formed in the end, far away from the first connecting plate, of the second mounting plate, so that the balancing weight can be lifted conveniently, and lifting and guiding of the balancing weight can be achieved; the second connecting plate is fixed below the second mounting plate.

Further preferably, two linear guide rails are connected between the first connecting plate and the first mounting plate, so that the first connecting plate is stably and smoothly lifted.

Further preferably, the rotary block is of a waist-shaped structure, and flexible materials are wrapped on the outer side of the rotary block, so that flexible pushing of the rotary block to the balancing weight is guaranteed, and the rotary block or the balancing weight is prevented from being broken due to the fact that the rotary block generates large impact force to the balancing weight.

Further preferably, the lower driving mechanism comprises a base, a vertically arranged air cylinder is arranged above the base, a horizontally arranged jacking plate is connected to the upper end piston rod end of the air cylinder, and the jacking plate can be driven to lift by the air cylinder, so that the angular contact bearing to be detected can be lifted; the lower part of jacking board is fixed with the third motor of vertical setting, the third motor sets up in the side of cylinder, the upper end output shaft end of third motor is connected with the reduction gear of installing in the jacking board top, the top of reduction gear is connected with first top connecting seat, first top is installed to the upper end of first top connecting seat, can drive first top connecting seat and first top rotation through third motor and reduction gear, and first top inserts angular contact bearing's inner circle, drives angular contact bearing's inner circle through first top rotation and rotates, can reduce angular contact bearing inner circle and the beat range of outer lane, improves detection precision.

Further preferably, four guide pieces are connected between the jacking plate and the base, so that stable and smooth lifting of the jacking plate is ensured; the guide piece comprises linear bearing and guide arm, four the guide piece symmetry sets up in the both sides of cylinder, is located the top of two guide pieces of cylinder same side is connected with a limiting plate for the height that goes up and down of restriction jacking board.

The beneficial effects are that: according to the angular contact bearing protrusion detection device, protrusion detection of the opposite DF mounting angular contact bearing is realized through the cooperation of the upper driving mechanism and the detection mechanism; the protrusion amount of the back-to-back DB mounting angular contact bearing is detected through the cooperation of the lower driving mechanism and the detection mechanism; through the arrangement of the second motor and the rotating block and the arrangement of the third motor and the speed reducer, the inner ring of the angular contact bearing is driven to rotate, the deflection amplitude of the inner ring of the angular contact bearing relative to the outer ring can be reduced, and the detection precision of the protruding amount of the angular contact bearing is improved; through the setting of first top connecting seat and first top and second top connecting seat and second top, realize detecting the protrusion of the angular contact bearing of the inner circle of different size specifications, detection range is wide, and the practicality is high.

Drawings

FIG. 1 is a schematic diagram of an axial structure of an angular contact bearing protrusion detecting device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a front view of an angular contact bearing protrusion detecting device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an exploded structure of a detection mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a right-side view of a detection mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an axial structure of an upper driving mechanism according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an axial structure of a lower driving mechanism according to an embodiment of the present invention.

Reference numerals: the device comprises a working platform, a 2-upper driving mechanism, a 21-first mounting plate, a 22-first motor, a 23-ball screw, a 24-first connecting plate, a 25-second mounting plate, a 251-round hole, a 26-second motor, a 27-rotating block, a 28-linear guide rail, a 3-lower driving mechanism, a 31-base, a 32-cylinder, a 33-jacking plate, a 34-third motor, a 35-speed reducer, a 36-first jacking connecting seat, a 37-first jacking, a 38-guiding piece, a 39-limiting plate, a 4-detecting mechanism, a 41-second connecting plate, a 42-balancing weight supporting seat, a 421-conical hole, a 43-balancing weight, a 431-conical block, a 44-supporting rod, a 45-connecting rod, a 46-linear displacement sensor, a 47-second jacking connecting seat and a 48-second jacking.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, an angular contact bearing protrusion amount detection device is used for detecting the protrusion amount of a face-to-face DF mounting angular contact bearing and a back-to-back DB mounting angular contact bearing. The bulge detection device comprises a working platform 1, an upper driving mechanism 2 is arranged above the working platform 1, a lower driving mechanism 3 is arranged below the working platform 1, the upper driving mechanism 2 is connected with a detection mechanism 4, and the detection mechanism 4 is arranged above the working platform 1 and is located right above the lower driving mechanism 3. Wherein, the cooperation of upper actuating mechanism 2 and detection mechanism 4 is used for opposite DF installation angular contact bearing's protrusion volume detection, and the cooperation of lower actuating mechanism 3 and detection mechanism 4 is used for the protrusion volume detection to back-to-back DB installation angular contact bearing.

Wherein, detection mechanism 4 contains second connecting plate 41, and second connecting plate 41 horizontal installation is on last actuating mechanism 2, and the top of second connecting plate 41 is fixed with balancing weight supporting seat 42, and the top of balancing weight supporting seat 42 is equipped with balancing weight 43, realizes supporting, the installation to balancing weight 43 through balancing weight supporting seat 42. The cross section of balancing weight 43 is circular, and the side of balancing weight 43 is equipped with two bracing pieces 44 that regard its centre of a circle as the symmetry center, and two bracing pieces 44 are vertical to be fixed in on the balancing weight supporting seat 42, and the end connection of two bracing pieces 44 has a connecting rod 45, and the straight line displacement sensor 46 of vertical setting is installed to the centre of connecting rod 45, and the lower extreme test head of straight line displacement sensor 46 and the upper end center looks butt of balancing weight 43, and the lower extreme of toper piece 431 is equipped with second top connecting seat 47. The installation of bracing piece 44 is realized through balancing weight supporting seat 42, simultaneously be used for the butt of diagonal contact bearing's outer lane, and then realize supporting and installation to connecting rod 45, realize the installation of linear displacement sensor 46 through connecting rod 45, second top connecting seat 47 is used for the butt pressure of diagonal contact bearing's inner circle, apply pressure to second top connecting seat 47 through balancing weight 43, realize diagonal contact bearing inner circle up end and apply prescribed vertical terminal surface's axial force, namely diagonal contact bearing exerts the measurement load, make angular contact bearing's inner circle take place vertical direction and remove, drive the balancing weight and remove in vertical direction, balancing weight supporting seat 42 supports angular contact bearing's outer lane simultaneously, prevent that angular contact bearing outer lane from taking place vertical direction and remove, realize the displacement detection to balancing weight 43 through linear displacement sensor 46, and then realize diagonal contact bearing inner circle and outer lane's relative difference in height, and then realize diagonal contact bearing's protrusion detection.

In this application, balancing weight 43's upper end is cylindricly, and its lower extreme is equipped with toper piece 431, and the diameter of toper piece 431 reduces from last decreasingly, and balancing weight 43 of being convenient for rotates, rotates through balancing weight 43, realizes the beat control of diagonal contact bearing inner circle, guarantees that the beat of the relative outer lane of angular contact bearing inner circle is little and stable, improves angular contact bearing's protrusion detection precision, reduces because of the measuring error that the beat brought.

In the application, the weight block supporting seat 42 is of a stepped cylindrical structure, the diameter size of the upper end of the weight block supporting seat is larger than that of the lower end of the weight block supporting seat, and the weight block supporting seat is clamped on the second connecting plate 41 through the stepped structure, so that the weight block supporting seat 42 is convenient to install and fix on the second connecting plate 41; the counterweight support seat 42 is provided with the conical hole 421 for installing and placing the conical block 431, so that the counterweight support seat 42 can uniformly support the counterweight 43, and the counterweight 43 can rotate conveniently.

In this application, be equipped with second top 48 in the second top connecting seat 47, in the second top 48 inserts angular contact bearing of being convenient for, the angular contact bearing fixes a position and fixes, and the protrusion that the DF installed angular contact bearing opposite face to face of convenient cooperation upper driving mechanism 2 detects. Meanwhile, the second plug 48 with different specifications is installed through the second plug connecting seat 47, so that the protruding amount of the angular contact bearing with the inner ring with different specifications can be conveniently detected.

In the application, the upper driving mechanism 2 comprises a first mounting plate 21, wherein the first mounting plate 21 is vertically fixed on the working platform 1, a first motor 22 which is vertically arranged is arranged at the upper end of the first mounting plate 21, a ball screw 23 which is vertically arranged is connected to the output shaft end of the lower end of the first motor 22, the screw rod of the ball screw 23 can be driven to rotate through the first motor 22, and the rotation of the screw rod is converted into linear motion of the screw rod through the screw rod of the ball screw 23; the nut of ball 23 is connected with first connecting plate 24, and first connecting plate 24 is connected with the second mounting panel 25 that the level set up, and second motor 26 has been set up to the second mounting panel 25 near first connecting plate 24 end top, and the vertical setting of second motor 26 and its lower extreme output shaft end are connected with rotatory piece 27. The first motor 22 drives the screw rod of the ball screw 23 to rotate, so that the nut of the ball screw 23 drives the first connecting plate 24 to move up and down, and then drives the second mounting plate 25 to move up and down, so that the detection mechanism 4 is driven to move up and down, the balancing weight 43 is moved down, the measurement load is applied to the inner ring of the diagonal contact bearing by the balancing weight 43, and the protruding amount of the diagonal contact bearing is detected. The second motor 26 is used for driving the rotating block 27 to rotate, and the balancing weight 43 is driven to rotate through the rotating block 27, so that deflection control of the inner ring of the angular contact bearing relative to the outer ring is realized, deflection of the inner ring and the outer ring of the angular contact bearing is guaranteed to be small and stable, the bulge detection precision of the angular contact bearing is improved, the measurement error caused by deflection is reduced, and accurate detection of the bulge of the opposite DF mounting angular contact bearing is realized.

In this application, keeping away from first connecting plate 24 end of second mounting panel 25 is equipped with round hole 251, and second connecting plate 41 is fixed in the below of second mounting panel 25, realizes the direction of reciprocating to balancing weight 43 through round hole 251, guarantees balancing weight 43's steady, guarantees balancing weight 43 simultaneously and can reciprocate.

In this application, be connected with two linear guide 28 between first connecting plate 24 and the first mounting panel 21, guarantee that the lift of second mounting panel 25 is steady, smooth and easy.

In this application, rotatory piece 27 is waist shape structure and its outside package has flexible material, guarantees the rotatory piece 27 and promotes the flexibility of balancing weight 43, drives balancing weight 43 and rotates, prevents that rotatory piece 27 from producing great impact force to balancing weight 43 and leading to rotatory piece 27 or balancing weight 43 to be crashed.

In this application, lower actuating mechanism 3 contains base 31, the top of base 31 is equipped with the cylinder 32 of vertical setting, the upper end piston rod end of cylinder 32 is connected with the jacking board 33 of level setting, the below of jacking board 33 is fixed with the third motor 34 of vertical setting, third motor 34 sets up in the side of cylinder 32, the upper end output shaft end of third motor 34 is connected with the reduction gear 35 of installing in jacking board 33 top, the top of reduction gear 35 is connected with first top connecting seat 36, first top 37 is installed to first top connecting seat 36's upper end. The lifting plate 33 can be driven to lift through the air cylinder 32, the third motor 34, the speed reducer 35, the first top connecting seat 36 and the first top 37 are driven to synchronously lift, the angular contact bearing placed on the working platform 1 is lifted up, the outer ring of the angular contact bearing is abutted with the balancing weight supporting seat 42, the inner ring of the angular contact bearing is abutted with the second top connecting seat 47 below the balancing weight 43, the lifting can be continued under the action of the air cylinder 32, the first top connecting seat 36 can be driven to rotate through the third motor 34 and the speed reducer 35, the first top 37 is driven to synchronously rotate, the first top 37 can be inserted into the inner ring of the angular contact bearing, the positioning of the angular contact bearing and the lifting of the angular contact bearing are realized, the inner ring of the angular contact bearing is driven to synchronously rotate, the bulge detection of the back-to-back DB installation angular contact bearing is realized, and the bulge detection precision of the back-to-back DB installation angular contact bearing is improved.

In the application, four guide pieces 38 are connected between the lifting plate 33 and the base 31 and used for lifting and guiding the lifting plate 33, so that the lifting and the lowering of the lifting plate 33 are stable and smooth; the guide members 38 are composed of linear bearings and guide rods, the four guide members 38 are symmetrically arranged on two sides of the air cylinder 32, and the top ends of the two guide members 38 located on the same side of the air cylinder 32 are connected with a limiting plate 39 for limiting the lifting height of the lifting plate 33, so that the lifting of the lifting plate 33 is ensured to be at a set height.

In the application, the bulge detecting device not only can detect the bulge of the opposite-to-opposite DF mounting angular contact bearing, but also can detect the bulge of the back-to-back DB mounting angular contact bearing, so that the bulge of the two angular contact bearings with different mounting modes is detected, the detecting function is multiple, and the practicability is wide; meanwhile, through the arrangement of the second motor 26 and the rotating block 27 of the upper driving mechanism 2 and the arrangement of the third motor 34 and the speed reducer 35, the inner ring of the angular contact bearing is driven to rotate, the deflection amplitude of the inner ring of the angular contact bearing relative to the outer ring can be reduced, and the detection precision of the protruding amount of the angular contact bearing is improved.

When the detected angular contact bearing is a face-to-face DF mounting angular contact bearing, the upper driving mechanism 2 acts, the first motor 22 drives the screw rod of the ball screw 23 to rotate, the first connecting plate 24 is driven to descend, the second mounting plate 25, the second motor 26, the rotating block 27 and the detecting mechanism 4 are driven to descend synchronously, the balancing weight supporting seat 42, the balancing weight 43, the second top connecting seat 47 and the second top 48 on the detecting mechanism 4 descend synchronously, the second top 48 is inserted into the inner ring of the angular contact bearing on the working platform 1, the balancing weight supporting seat 42 is abutted against the outer ring of the angular contact bearing, at the moment, the second top connecting seat 47 and the balancing weight 43 displace upwards relative to the balancing weight supporting seat 42 under the action of the inner ring of the angular contact bearing, so that the detecting head of the linear displacement sensor 46 is compressed, and the protruding amount of the angular contact bearing is detected; meanwhile, the second motor 26 drives the rotating block 27 to rotate, drives the balancing weight 43 to synchronously rotate, further drives the inner ring of the angular contact bearing to rotate, reduces the deflection amplitude of the inner ring of the angular contact bearing relative to the outer ring, and improves the detection precision of the protruding amount of the angular contact bearing.

When the detected angular contact bearing is a back-to-back DB (digital b) mounting angular contact bearing, the lower driving mechanism 3 acts, the lifting plate 33 is lifted upwards through the extension of the piston rod of the air cylinder 32, the third motor 34, the speed reducer 35, the first plug connecting seat 36 and the first plug 37 are driven to synchronously move upwards, the first plug 37 is inserted into the inner ring of the angular contact bearing, the angular contact bearing is driven to synchronously move upwards, the outer ring of the angular contact bearing is abutted against the balancing weight supporting seat 42, the inner ring of the angular contact bearing is abutted against the second plug connecting seat 47, the inner ring of the angular contact bearing is continuously lifted and the second plug connecting seat 47 and the balancing weight 43 are lifted up along with the continuous ejection of the piston rod of the air cylinder 32, the test head of the linear displacement sensor 46 is compressed, and the protruding amount of the angular contact bearing is detected; meanwhile, the third motor 34 and the speed reducer 35 act to drive the first plug connecting seat 36 and the first plug 37 to rotate, so that the inner ring of the angular contact bearing is driven to synchronously rotate, the deflection amplitude of the inner ring of the angular contact bearing relative to the outer ring is reduced, and the detection precision of the protruding amount of the angular contact bearing is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the summary of the present invention within the scope of the present invention.

Claims (10)

1. The utility model provides an angular contact bearing protrusion detection device, includes work platform (1), its characterized in that: an upper driving mechanism (2) is arranged above the working platform (1), a lower driving mechanism (3) is arranged below the working platform (1), the upper driving mechanism (2) is connected with a detection mechanism (4), and the detection mechanism (4) is arranged above the working platform (1) and is positioned right above the lower driving mechanism (3);

the detection mechanism (4) comprises a second connecting plate (41), the second connecting plate (41) is horizontally arranged on the upper driving mechanism (2), a balancing weight supporting seat (42) is fixed above the second connecting plate (41), a balancing weight (43) is arranged above the balancing weight supporting seat (42), the cross section of the balancing weight (43) is circular, two supporting rods (44) taking the center of a circle as a symmetrical center are arranged on the side edge of the balancing weight (43), the two supporting rods (44) are vertically fixed on the balancing weight supporting seat (42), one connecting rod (45) is connected with the end part of each supporting rod (44), a vertical linear displacement sensor (46) is arranged in the middle of each connecting rod (45), the lower end test head of each linear displacement sensor (46) is abutted against the upper end center of the corresponding balancing weight (43), and a second top connecting seat (47) is arranged at the lower end of each conical block (431).

2. The angular contact bearing protrusion detection device according to claim 1, wherein: the upper end of the balancing weight (43) is cylindrical, the lower end of the balancing weight is provided with a conical block (431), and the diameter of the conical block (431) is gradually reduced from top to bottom.

3. The angular contact bearing protrusion detection device according to claim 2, wherein: the balancing weight supporting seat (42) is of a stepped cylindrical structure, the diameter size of the upper end of the balancing weight supporting seat is larger than that of the lower end of the balancing weight supporting seat, and a conical hole (421) matched with the conical block (431) is formed in the balancing weight supporting seat (42).

4. The angular contact bearing protrusion detection device according to claim 1, wherein: and a second plug (48) is arranged in the second plug connecting seat (47).

5. The angular contact bearing protrusion detection device according to claim 1, wherein: the upper driving mechanism (2) comprises a first mounting plate (21), the first mounting plate (21) is vertically fixed on the working platform (1), a first motor (22) which is vertically arranged is mounted at the upper end of the first mounting plate (21), a ball screw (23) which is vertically arranged is connected to the output shaft end of the lower end of the first motor (22), a first connecting plate (24) is connected to a nut of the ball screw (23), a second mounting plate (25) which is horizontally arranged is connected to the first connecting plate (24), a second motor (26) is mounted above the end, close to the first connecting plate (24), of the second mounting plate (25), and a rotating block (27) is vertically arranged and connected to the output shaft end of the lower end of the second motor (26).

6. The angular contact bearing protrusion detection device according to claim 5, wherein: the end, far away from the first connecting plate (24), of the second mounting plate (25) is provided with a round hole (251) matched with the balancing weight (43), and the second connecting plate (41) is fixed below the second mounting plate (25).

7. The angular contact bearing protrusion detection device according to claim 5, wherein: two linear guide rails (28) are connected between the first connecting plate (24) and the first mounting plate (21).

8. The angular contact bearing protrusion detection device according to claim 5, wherein: the rotary block (27) is of a waist-shaped structure, and flexible materials are wrapped on the outer side of the rotary block.

9. The angular contact bearing protrusion detection device according to claim 1, wherein: lower actuating mechanism (3) contain base (31), the top of base (31) is equipped with cylinder (32) of vertical setting, the upper end piston rod end of cylinder (32) is connected with jacking plate (33) of level setting, the below of jacking plate (33) is fixed with third motor (34) of vertical setting, third motor (34) set up in the side of cylinder (32), the upper end output axle head of third motor (34) is connected with and installs in reduction gear (35) in jacking plate (33) top, the top of reduction gear (35) is connected with first top connecting seat (36), first top (37) are installed to the upper end of first top connecting seat (36).

10. The angular contact bearing protrusion detection device according to claim 9, wherein: four guide pieces (38) are connected between the jacking plate (33) and the base (31), each guide piece (38) is composed of a linear bearing and a guide rod, the four guide pieces (38) are symmetrically arranged on two sides of the air cylinder (32), and the top ends of the two guide pieces (38) located on the same side of the air cylinder (32) are connected with a limiting plate (39).

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