CN115235673A

CN115235673A - Bearing axial load detection equipment

Info

Publication number: CN115235673A
Application number: CN202210898885.6A
Authority: CN
Inventors: 焦鹏
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-10-25

Abstract

The invention discloses a bearing axial load detection device, which comprises a base, wherein an air main shaft and a test frame are arranged on the base, the end face of the test frame is a placing face, the air main shaft is arranged at the center of the test frame, a central shaft is detachably connected to the output end of the air main shaft, a linkage frame is detachably arranged on the central shaft, a force application part for applying axial load to an outer ring of a bearing to be detected outside is arranged on the linkage frame, a fixing part is arranged on the test frame, a driving part for driving the input end of the air main shaft to operate and driving the central shaft to axially rotate is arranged on the base, a dynamic torque sensor is arranged on the input end of the air main shaft, and a synchronous part is also arranged on the linkage frame.

Description

Bearing axial load detection equipment

Technical Field

The invention relates to the technical field of bearing detection equipment, in particular to bearing axial load detection equipment.

Background

The slewing bearing is also called as a turntable bearing, is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moment; in the prior art, after a large slewing bearing is produced, data in various aspects of the large slewing bearing needs to be measured, for example, an instantaneous torque value of the bearing is required, when the large slewing bearing runs, the bearing rotates initially to generate an instantaneous torque force, the torque force is influenced by the size of the bearing, the number of rolling bodies, friction torque between the rolling bodies and a raceway and the content of grease in the bearing, when an external driving device drives the large slewing bearing, a driving force larger than the torque value needs to be applied, otherwise, the inner ring or the outer ring of the bearing is easy to slip, and further the bearing or tooling equipment linked with the bearing fails to run.

Disclosure of Invention

The invention provides a bearing axial load detection device aiming at the defects in the prior art, and aims to solve the problem that a measuring device which can apply axial load to a bearing so as to simulate a working condition and measure an instantaneous torque value during operation of the bearing is lacked in the prior art.

In order to achieve the purpose, the invention provides a bearing axial load detection device which comprises a base, wherein an air main shaft and a test frame are arranged on the base, the end face of the test frame is a placing face for placing an external bearing to be detected, the air main shaft is arranged at the center of the test frame, the output end of the air main shaft is detachably connected with a central shaft, a linkage frame is detachably arranged on the central shaft, a force application part for applying axial load to the external bearing outer ring to be detected is arranged on the linkage frame, a fixing part for fixing the external bearing inner ring to be detected on the placing face is arranged on the test frame, a driving part for driving the input end of the air main shaft to rotate and driving the central shaft to rotate axially is arranged on the base, a dynamic torque sensor for detecting the rotating instantaneous torque value of the external bearing outer ring to be detected is arranged on the input end of the air main shaft, and a synchronizing part for driving the external bearing outer ring to be detected to rotate synchronously when the central shaft rotates axially is further arranged on the linkage frame.

The technical scheme is adopted, and the method has the advantages that: an operator places a large slewing bearing to be detected on a placing surface of a test stand, the central shaft penetrates through a shaft hole of the large slewing bearing, then the operator fixes an inner ring of the bearing to be detected on the placing surface through a fixing part, then the operator operates a force application part to apply axial load to an outer ring of the bearing to be detected, the operator starts a driving part to drive the input end of an air main shaft to rotate, the air main shaft rotates to drive the central shaft to axially rotate, the central shaft can drive a linkage frame to rotate when the central shaft axially rotates, friction torque must exist between the force application part and the side edge of the outer ring of the bearing to be detected when the force application part applies the axial load, the linkage frame linkage force application part drives the outer ring of the bearing to be detected to rotate, and the bearing operates and has an instantaneous torque value, if the torque value is lower than the driving force output by the driving part, an operator can increase the driving force output by the driving part, so that the central shaft can continue to rotate and drive the outer ring of the bearing to be detected to rotate through the linkage frame, the problem that the outer ring of the bearing cannot rotate or slips between the outer ring and the force application part due to the fact that the driving force is lower than the torque force of the bearing is solved, instantaneous torque generated by primary rotation of the bearing to be detected during rotation can be fed back to the central shaft and then is transmitted to the air spindle through the central shaft, the dynamic torque sensor on the air spindle can sense and record the torque value at the moment, the recorded torque value can be transmitted to an external intelligent center, the detection efficiency and the detection accuracy are further improved, the operator can conveniently set the output torque of an external driving device during actual application of a subsequent bearing, and the output torque can be ensured to be larger than the torque value, further, the bearing can smoothly run in actual application, and the dynamic torque sensor in the prior art is not redundant in structure and function; the arrangement of the force application part in the technology facilitates an operator to adjust the axial load applied to the bearing to be detected, so that the bearing running efficiency under different working conditions is simulated, the instantaneous torque values of the bearing under different axial loads are detected, and the detection accuracy and detection efficiency are improved; the center pin can be dismantled with the air spindle and be connected in the above-mentioned technique, makes things convenient for operating personnel to wait to detect the bearing and place on placing the face for whole process of placing is quick and simple and easy, has accelerated the preparation step before the detection, and then has improved detection efficiency and detection precision.

The invention further provides that: the force application part comprises a plurality of driving cylinders which are arranged on the linkage frame, and the output end of each driving cylinder is connected with a force application rod which is used for being buckled on the side edge of the outer ring of the external bearing to be detected.

The technical scheme is adopted, and the method has the advantages that: after an operator places a large slewing bearing to be detected on a placing surface, the operator can start the driving cylinders, so that the force application rods on each driving cylinder can be abutted and buckled on the side edge of the outer ring of the bearing to be detected outside, and further, axial loads are applied to the outer ring of the bearing, so that the axial loads borne by the bearing under different working conditions can be simulated, and further, instantaneous torque values of the bearing under different axial loads can be better detected; a plurality of actuating cylinder that drive among the above-mentioned technique can be arranged on the mount along center pin circumference, and then realize arranging along the hoop that detects the bearing shaft hole direction for when the center pin is rotatory, a plurality of actuating cylinder that drive on the mount can drive and detect the rotation of bearing inner race.

The invention further provides that: the linkage frame is provided with a plurality of sliding grooves corresponding to the positions of all force application rods, the sliding grooves are distributed on the end face of the linkage frame along the circumferential direction of a central shaft of the linkage frame, first holes are distributed on the two sides of each sliding groove along the length direction of each sliding groove, each driving cylinder is provided with a connecting plate, each connecting plate is provided with a plurality of second holes, each second hole is connected with a limiting bolt in a threaded mode, and each limiting bolt is connected with the adjacent first holes in a threaded mode.

The technical scheme is adopted, and the method has the advantages that: the position that drives actuating cylinder and reside in the link span can be adjusted according to waiting to detect bearing shaft hole size to operating personnel, operating personnel removes and drives actuating cylinder and make every application of force pole that drives actuating cylinder all can wear out the spout and support to detain on waiting to detect the bearing inner race side, wait to drive actuating cylinder and remove the back, operating personnel passes through spacing bolt and second trompil and the first trompil screw-thread fit that corresponds, realize the fixed of connecting plate on the link span, the setting of above-mentioned technique both makes things convenient for operating personnel dismouting to drive actuating cylinder, also make to drive actuating cylinder to wait that not unidimensional detects the bearing homoenergetic and apply axial load, and then improve detection range and the precision that detects.

The invention further provides that: the mounting includes that a plurality of sets up the dead lever on the test stand, and is a plurality of the dead lever is arranged on placing the face along test stand center pin circumference, every all slide along the dead lever direction of height on the dead lever and be provided with the buckle that supports, support the buckle bottom surface and wait to detect the face of supporting that the bearing inner race side contacted for being used for with the external world, every equal threaded connection in dead lever top is used for supporting the knot nut of supporting of detaining on adjacent buckle top surface.

The technical scheme is adopted, and the method has the advantages that: when an operator needs to fix a bearing inner ring to be detected, the operator slides the abutting plate to enable the abutting plate to abut against and buckle the side edge of the bearing inner ring to be detected outside, then the abutting nut is screwed in, the abutting nut is enabled to slide down on the fixed rod and abut against and buckle the top surface of the abutting plate, the operator continues to rotate the abutting nut, the abutting nut applies acting force to the abutting plate, the acting force can drive the abutting plate to slide down on the fixed rod, but the abutting plate cannot continue to slide down when abutting against and buckle the side edge of the bearing inner ring to be detected, the acting force can act on the bearing inner ring through the abutting plate, fixing of the bearing inner ring to be detected is achieved, the bearing inner ring is ensured not to be linked to lead the bearing to be detected to shake or break away from the placing surface when the bearing outer ring rotates, and smooth proceeding of the whole detection process is ensured.

The invention further provides that: the test rack is characterized in that a groove is formed in the test rack corresponding to each fixing rod position, the bottom of each fixing rod slides along the groove length direction and is arranged in the groove, a through groove is formed in the test rack corresponding to each groove position, each through groove is communicated with each adjacent groove, each through groove slides in each through groove and is provided with a sliding block, each sliding block is connected with each adjacent bottom of each fixing rod, and the groove width diameter is smaller than the groove width diameter.

The technical scheme is adopted, and the method is beneficial to that: when the bearings to be detected with different sizes are required to be fixed on the placing surface, an operator stirs the fixed rod to enable the sliding block at the bottom of the fixed rod to slide in the through groove, so that the position of the fixed rod is driven to change, and the bearings to be detected with different shaft hole sizes can be ensured to be fixed on the placing surface; the width and the diameter of the open groove in the technology are smaller than those of the through groove, so that the fixing rod cannot be separated from the through groove, and the bearing to be detected cannot be fixed and fail.

The invention further provides that: the driving piece comprises a driving motor arranged on the base, and the output end of the driving motor is connected with the input end of the air spindle.

The technical scheme is adopted, and the method has the advantages that: the setting of driving motor makes the drive center pin that the air spindle can be normal rotatory among the above-mentioned technique, and then makes to wait to detect the bearing inner race and can rotate smoothly, ensures that the testing process can not the mistake appear, has improved detection efficiency and detection precision.

The invention further provides that: the center pin top can be dismantled and be connected with the pivot, pivot top level is run through there is the spacing groove, synchronous piece includes synchronous board, be provided with on the synchronous board and be used for waiting to detect the screw hole grafting complex connector on the bearing inner race side with the external world, synchronous board level slides and sets up in the spacing groove, a plurality of spacing holes with the spacing groove intercommunication are seted up at the pivot top, every equal threaded connection has the check lock lever in the spacing hole, check lock lever one end penetrates the fluting and contradicts the cooperation setting with synchronous board outer wall.

The technical scheme is adopted, and the method has the advantages that: before waiting to detect the bearing rotation, operating personnel connects the pivot at the center pin top earlier, then insert the connector on the synchronizing plate and wait to detect the screw hole on the bearing inner race side, make the synchronizing plate can drive when the axial rotation is made to the center pin and wait to detect bearing inner race synchronous rotation, exerted effort is less than and waits to detect the produced torque force of bearing and lead to waiting to detect the bearing inner race phenomenon of skidding when avoiding the center pin preliminary rotation, and then avoid the testing result to receive the influence, avoid simultaneously that corresponding device receives the damage, and the synchronizing plate can slide and set up in the spacing groove, make operating personnel can adjust the interval between connector and the pivot according to the bearing of different shaft hole sizes, and then the not unidimensional bearing that waits of adaptation.

Drawings

FIG. 1 is a three-dimensional view of the present invention;

fig. 2 is a three-dimensional view of the movable shaft and its connection structure in the present invention.

Detailed Description

The invention provides a bearing axial load detection device, which comprises a base 1, wherein an air main shaft 2 and a test frame 11 are arranged on the base 1, the end surface of the test frame 11 is a placing surface 111 for placing an external bearing to be detected, the air main shaft 2 is arranged at the center of the test frame 11, the output end of the air main shaft 2 is detachably connected with a central shaft 21, a linkage frame 3 is detachably arranged on the central shaft 21, a force application part for applying axial load to the external bearing outer ring to be detected is arranged on the linkage frame 3, a fixing part for fixing the external bearing inner ring to be detected on the placing surface 111 is arranged on the test frame 11, a driving part for driving the input end of the air main shaft 2 to operate and driving the central shaft 21 to axially rotate is arranged on the base 1, a dynamic torque sensor 23 for detecting the instantaneous torque value of the external bearing outer ring to be detected is arranged on the input end of the air main shaft 2, the linkage frame 3 is further provided with a synchronizing member for driving an external bearing outer ring to be detected to synchronously rotate when the central shaft 21 axially rotates, the force application member comprises a plurality of driving cylinders 24 arranged on the linkage frame 3, the output end of each driving cylinder 24 is connected with a force application rod 241 for abutting against the side edge of the external bearing outer ring to be detected, a sliding groove 31 for the force application rod 241 to penetrate through is formed in the linkage frame 3 corresponding to the position of each force application rod 241, the plurality of sliding grooves 31 are circumferentially arranged on the end surface of the linkage frame 3 along the central shaft 21 of the linkage frame 3, first open holes 32 are formed in the two sides of each sliding groove 31 along the length direction of the sliding groove 31, each driving cylinder 24 is provided with a connecting plate 33, and each connecting plate 33 is provided with a plurality of second open holes 331, each second opening 331 is in threaded connection with a limiting bolt 34, each limiting bolt 34 is in threaded connection with a respective adjacent first opening 32, the fixing member comprises a plurality of fixing rods 4 arranged on the test stand 11, the plurality of fixing rods 4 are circumferentially arranged on the placing surface 111 along the central axis 21 of the test stand 11, each fixing rod 4 is provided with a retaining plate 41 in a sliding manner along the height direction of the fixing rod 4, the bottom surface of the retaining plate 41 is a retaining surface used for contacting with the side edge of an inner ring of a bearing to be detected, the top end of each fixing rod 4 is in threaded connection with a retaining nut 42 used for retaining and retaining on the top surface of the adjacent retaining plate 41, a groove 112 is formed in the test stand 11 corresponding to each fixing rod 4, the bottom of the fixing rod 4 is arranged in the groove 112 in a sliding manner along the length direction of the groove 112, a through groove 113 is formed in the test stand 11 corresponding to each groove 112, each through groove 113 is communicated with the adjacent groove 112, a sliding block 43 is arranged in each through groove 113 in a sliding manner, each sliding block 43 is connected with the bottom of the adjacent fixing rod 4, the width of each groove 112 is smaller than that of each through groove 113, the driving part comprises a driving motor 5 arranged on the base 1, the output end of the driving motor 5 is connected with the input end of the air spindle 2, the top of the central shaft 21 is detachably connected with a rotating shaft 6, a limiting groove 61 is horizontally penetrated through the top of the rotating shaft 6, the synchronizing part comprises a synchronizing plate 62, a connector 63 used for being in plug-in fit with a threaded hole on the side edge of the outer ring of the bearing to be detected outside is arranged on the synchronizing plate 62, the synchronizing plate 62 is horizontally arranged in the limiting groove 61 in a sliding manner, and a plurality of limiting holes communicated with the limiting groove 61 are formed in the top of the rotating shaft 6, each limiting hole is internally and spirally connected with a locking rod 64, and one end of each locking rod 64 penetrates into the corresponding groove 112 and is arranged in an interference fit with the outer wall of the synchronizing plate 62.

The slewing bearing to be detected in the above technology is marked as 7 in the attached drawings of the specification.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a bearing axial load check out test set which characterized in that: the test bed comprises a base, be provided with air main shaft and test frame on the base, the test frame terminal surface is for supplying the external world to wait to detect the face of placing that the bearing was placed, air main shaft sets up in test frame center department, can dismantle on the air main shaft output and be connected with the center pin, can dismantle on the center pin and be provided with the linkage frame, be provided with on the linkage frame and be used for waiting to detect the external world and detect the force application spare that the bearing outer lane applyed axial load, be provided with on the test frame and be used for waiting to detect the external world and detect the mounting that the bearing inner race is fixed on the face of placing, be provided with on the base and be used for driving air main shaft input operation and make it drive the center pin and do axial rotation's driving piece, be provided with on the air main shaft input and be used for detecting the external world and wait to detect the dynamic torque sensor of bearing outer lane rotation instantaneous torque value, still be provided with on the linkage frame and be used for driving the external world and wait to detect the synchronous rotatory synchronizing member of bearing outer lane when the center pin does axial rotation.

2. The bearing axial load detection apparatus according to claim 1, characterized in that: the force application part comprises a plurality of driving cylinders which are arranged on the linkage frame, and the output end of each driving cylinder is connected with a force application rod which is used for being buckled on the side edge of the outer ring of the external bearing to be detected.

3. The bearing axial load detection apparatus according to claim 2, characterized in that: the linkage frame is provided with a plurality of sliding grooves corresponding to the positions of all force application rods, the sliding grooves are distributed on the end face of the linkage frame along the circumferential direction of a central shaft of the linkage frame, first holes are distributed on the two sides of each sliding groove along the length direction of each sliding groove, each driving cylinder is provided with a connecting plate, each connecting plate is provided with a plurality of second holes, each second hole is connected with a limiting bolt in a threaded mode, and each limiting bolt is connected with the adjacent first holes in a threaded mode.

4. The bearing axial load detection apparatus according to claim 1, characterized in that: the mounting includes that a plurality of sets up the dead lever on the test stand, and is a plurality of the dead lever is arranged on placing the face along test stand center pin circumference, every all slide along the dead lever direction of height on the dead lever and be provided with the buckle that supports, support the buckle bottom surface and wait to detect the face of supporting that the bearing inner race side contacted for being used for with the external world, every equal threaded connection in dead lever top is used for supporting the knot nut of supporting of detaining on adjacent buckle top surface.

5. The bearing axial load detection apparatus according to claim 4, characterized in that: the test rack is characterized in that a groove is formed in the test rack corresponding to each fixing rod, the bottom of each fixing rod slides along the length direction of the groove and is arranged in the groove, through grooves are formed in the test rack corresponding to each groove, each through groove is communicated with the adjacent groove, a sliding block is arranged in each through groove in a sliding mode, each sliding block is connected with the bottom of the adjacent fixing rod, and the width of each groove is smaller than the width of each through groove.

6. The bearing axial load detecting apparatus according to claim 1, characterized in that: the driving piece comprises a driving motor arranged on the base, and the output end of the driving motor is connected with the input end of the air spindle.

7. The bearing axial load detecting apparatus according to claim 1, characterized in that: the center pin top can be dismantled and be connected with the pivot, pivot top level is run through there is the spacing groove, synchronous piece includes synchronous board, be provided with on the synchronous board and be used for waiting to detect the screw hole grafting complex connector on the bearing inner race side with the external world, synchronous board level slides and sets up in the spacing groove, a plurality of spacing holes with the spacing groove intercommunication are seted up at the pivot top, every equal threaded connection has the check lock lever in the spacing hole, check lock lever one end penetrates the fluting and contradicts the cooperation setting with synchronous board outer wall.