CN111571492A - Clamping mechanism for dynamic diagnosis of double-row tapered roller bearing - Google Patents
Clamping mechanism for dynamic diagnosis of double-row tapered roller bearing Download PDFInfo
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- CN111571492A CN111571492A CN202010544055.4A CN202010544055A CN111571492A CN 111571492 A CN111571492 A CN 111571492A CN 202010544055 A CN202010544055 A CN 202010544055A CN 111571492 A CN111571492 A CN 111571492A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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Abstract
The invention relates to the technical field of bearing detection, and discloses a clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing, which comprises a driving shaft, wherein the driving shaft is in a cone shape, and the end part of the driving shaft is provided with a connecting rod; the connecting sleeve is provided with a first limiting part at the periphery of one end, a movable groove is formed in the connecting sleeve along the axial direction of the connecting sleeve, and a spreading part is arranged on the inner wall of the connecting sleeve; the connecting cover is annular, partial structures of the connecting rod and the driving shaft can penetrate through the connecting cover, a second limiting part is arranged on the periphery of one end of the connecting cover, which is far away from the connecting sleeve, and the outer diameter of the second limiting part is larger than that of the connecting sleeve; the connecting cap is in threaded connection with the connecting rod, and the outer diameter of the connecting cap is larger than the inner diameter of the connecting cover; the jacking piece is externally connected with a driving structure used for driving the jacking piece to move, and the driving structure can drive the jacking piece to be close to or far away from the driving shaft. The invention has the effect of fast clamping.
Description
Technical Field
The invention relates to the technical field of bearing detection, in particular to a clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing.
Background
Roller bearings, one of the rolling bearings, are one of the components widely used in modern machinery, which rely on rolling contact between the main elements to support the rotating parts. The roller bearing has the advantages of small moment required by starting, high rotation precision, convenience in selection and the like, so that the roller bearing is used in various fields, such as trains and the like, and a double-row tapered roller bearing is selected as an axle box bearing.
In the production process of the bearing, the bearing needs to be detected, and the root mean square value and the kurtosis coefficient of the bearing are detected under the condition of simulating the use working condition; wherein, when detecting, the bearing needs to be connected with the bearing through a certain clamping mechanism, and then the subsequent detection is carried out, wherein the connection refers to that: the driving part is fixedly connected with the bearing inner ring, then the bearing outer ring is driven by another mechanism, so that a certain interaction force (aiming at simulating the use working condition of the bearing) is formed between the bearing outer ring and the bearing inner ring, the probe is arranged on the bearing outer ring and used for detecting various data of the bearing outer ring under the working condition and transmitting the data, and the root mean square value, the kurtosis coefficient and the like are calculated through the data; wherein the driving part can drive the bearing inner ring to rotate during detection, and the bearing outer ring is kept in a stationary state during the rotation.
Disclosure of Invention
The invention aims to provide a clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing, and aims to achieve the purpose of rapid clamping.
The technical purpose of the invention is realized by the following technical scheme: a clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing comprises a driving shaft, wherein the driving shaft is in a circular truncated cone shape, and the end part of the driving shaft is provided with a connecting rod coaxial with the driving shaft;
the connecting sleeve is provided with a first limiting part at the periphery of one end, a movable groove is formed in the connecting sleeve along the axial direction of the connecting sleeve, one end of the movable groove is attached to the connecting sleeve, the other end of the movable groove penetrates through the connecting sleeve, two sides of the movable groove penetrate through the connecting sleeve, and an opening part which is movably abutted to the outer wall of the driving shaft is arranged on the inner wall of the connecting sleeve;
the connecting cover is annular, partial structures of the connecting rod and the driving shaft can penetrate through the connecting cover, a second limiting part is arranged on the periphery of one end, far away from the connecting sleeve, of the connecting cover, and the outer diameter of the second limiting part is larger than that of the connecting sleeve;
the connecting cap is in threaded connection with the connecting rod, and the outer diameter of the connecting cap is larger than the inner diameter of the connecting cover;
the jacking piece, the jacking piece is external to be used for driving the drive structure of jacking piece activity, drive structure can drive the jacking piece is close to or keeps away from the drive shaft.
The invention is further provided with: the connecting sleeve is close to an annular supporting groove is formed in the inner wall of one end of the connecting cover, an annular supporting ring is arranged on one side, close to the connecting sleeve, of the connecting cover, the cross section of the supporting ring is L-shaped, and the outer diameter of the supporting ring is smaller than the inner diameter of the supporting groove.
The invention is further provided with: two movable grooves are formed in the connecting sleeve, and the two movable grooves are symmetrically located on two sides of the connecting sleeve.
The invention is further provided with: the struts are provided in four, two opposing struts may form a ring.
The invention is further provided with: one side of the strutting piece, which is far away from the connecting sleeve, is inclined, and the strutting piece is attached to the inclined direction of the part of the driving shaft and the inclined direction of the part of the driving shaft, which is attached to the strutting piece, are the same.
The invention is further provided with: the edge of the strutting piece is all in the shape of a round angle or a chamfer angle.
The invention is further provided with: the jacking piece comprises a jacking portion and supporting portions arranged on two sides of the jacking portion in an inclined mode, the inclined directions of the supporting portions are opposite, and the jacking portion and the supporting portions are right opposite to one side of the connecting sleeve to form a C shape or a V shape.
The invention is further provided with: the connecting rod is kept away from the one end middle part of drive shaft has seted up the locating hole, run through one side of connecting rod seted up with the communicating locking hole of locating hole, the connecting cap deviates from the one end of drive shaft has seted up the locking groove, the locking groove is rotatable to just right to the locking hole, the activity is provided with the locating lever in the locating hole and is used for adjusting the regulation structure of locating lever position, the one end of locating lever is located in the locking hole, it is adjustable to adjust the structure the other end of locating lever is located in the locking groove or is located in the locking hole.
The invention is further provided with: the adjusting structure comprises a movable body movably arranged in the positioning hole, one side of the movable body close to the positioning rod is inclined, a T-shaped first movable groove is formed in the inclined part of the movable body, and a first matching body in sliding fit with the first movable groove is arranged at the end part of the positioning rod;
a second matching body with an I-shaped or T-shaped section is arranged on the inner wall of the positioning hole, a second movable groove in movable fit with the second matching body is formed in the side part of the movable body, and the length direction of the second matching body is consistent with the length direction of the connecting rod;
the inner wall of the positioning hole is provided with a thread groove, the thread groove is connected with a driving body in a threaded mode, and the driving body is connected with the movable body in a rotating mode.
The invention is further provided with: the one end of activity body is provided with two convex movable rails, set up the rotation groove that the cross-section is the T font on the movable rail, the tip of driving body is provided with annular rotation piece, rotate the piece with rotate groove clearance fit, the thread groove with leave the settlement distance between the second cooperation body, the driving body is kept away from the tip of activity body is provided with rotation portion, the diameter of rotation portion equals the external diameter of connecting rod.
The invention has the beneficial effects that: when the dynamic diagnosis is carried out on the double-row tapered roller bearing, firstly, only the connecting sleeve is arranged on the driving shaft, and the connecting sleeve is under the elastic acting force of the first limiting part, so that the movable groove is in a fit state, the connecting sleeve is also in a slight circular truncated cone shape, namely, the diameter of one end, close to the connecting rod, of the connecting sleeve is smaller than that of one end, far away from the connecting rod, of the connecting sleeve, and the outer diameter of the whole connecting sleeve is slightly smaller than that of the inner bearing ring, so that the inner bearing ring can be conveniently sleeved on the outer wall of the connecting sleeve.
After the bearing inner ring is sleeved on the connecting sleeve, the connecting cover penetrates through the connecting rod and one end with a smaller diameter of the driving shaft until the second limiting part is abutted to the end part of the bearing inner ring, the connecting cover is attached to the inner wall of the bearing inner ring, then the connecting cap is in threaded connection with the connecting rod, and along with the rotation of the connecting cap in a rotating mode, the connecting cap is abutted to the side part of the connecting cover and drives the connecting cover, the bearing and the connecting sleeve to move (the other end of the bearing inner ring is abutted to the first limiting part); the distance between the inner wall of the connecting sleeve and the axis of the driving shaft is gradually increased by the strutting piece due to the fact that the strutting piece butts against the outer wall of the circular truncated cone-shaped driving shaft, and the distance between the connecting sleeve and the bearing inner ring is gradually reduced (or the included angle between the bus of the connecting sleeve and the bus of the bearing inner ring is gradually reduced) in the process along with the movement of the strutting piece until the connecting sleeve is completely attached to the inner wall of the bearing inner ring (the included angle between the bus of the connecting sleeve and the bus of the bearing inner ring is zero); the fixing of the bearing inner ring is completed at the moment, the inner wall of the bearing inner ring props against the outer wall of the connecting sleeve and the connecting cover, and two ends of the bearing inner ring respectively prop against the first limiting part and the second limiting part.
Then drive structure drive jacking piece moves towards the bearing inner race activity, on conflicting the bearing outer race to make and reach the interact power size of settlement between bearing inner race and the bearing outer race through drive structure and jacking piece, later alright set up two or other quantity's probe on the bearing outer race for detect when the drive shaft drives the bearing inner race and rotate, the state of bearing outer race, then can diagnose root mean square value and kurtosis coefficient etc. of double-row tapered roller bearing through these states.
After finishing detecting, drive structure drive jacking piece and bearing inner race separation, then only need will connect the cap and take off from the connecting rod, later take off in proper order connect the lid and the bearing can, the bearing drives the adapter sleeve and moves towards the connecting rod direction when taking off, the elastic force effect of the connecting sleeve that has been strutted in this direction under the first spacing portion of joint sleeve resumes to the round platform shape once more, consequently the bearing of being convenient for separates simple and convenient with the adapter sleeve.
Because no matter the bearing inner race is fixed or the detected bearing is taken down, the operation is convenient, and the operation is convenient and fast on the whole. Meanwhile, when the inner ring of the drive bearing rotates, the driving force of the inner ring of the drive bearing is the static friction force between the connecting sleeve and the inner ring of the bearing and between the first limiting part and the two ends of the inner ring of the bearing and the second limiting part, so that the inner ring of the bearing has a wide driving range, the local part of the inner ring of the bearing can be well prevented from being subjected to overlarge stress, and the inner ring of the bearing is protected.
It should be understood that the driving power of the driving shaft may be a conventional motor or a speed reducing motor, or may be other structures that can be realized, and is not limited herein.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a cross-sectional view of an embodiment of the clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing according to the present invention for limiting the position of the connecting cap;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is an enlarged view of portion C of FIG. 3;
FIG. 6 is a cross-sectional view of an embodiment of the clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing according to the present invention, when the connecting cap is not limited;
FIG. 7 is an enlarged view of portion D of FIG. 6;
FIG. 8 is a schematic structural diagram of an embodiment of a connecting cover in a clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing according to the present invention;
FIG. 9 is a schematic structural view of an embodiment of a connecting cap in a clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing according to the present invention;
FIG. 10 is a schematic structural view of an embodiment of a movable body in the clamping mechanism for dynamic diagnosis of the double-row tapered roller bearing according to the present invention;
FIG. 11 is a schematic structural diagram of an embodiment of a positioning rod in the clamping mechanism for dynamic diagnosis of the double-row tapered roller bearing according to the present invention;
FIG. 12 is a sectional view showing an example of a driving body in the clamping mechanism for dynamic diagnosis of a double row tapered roller bearing according to the present invention;
FIG. 13 is a sectional view showing an embodiment of a connecting rod in a clamping mechanism for a double row tapered roller bearing dynamic state diagnosis according to the present invention.
In the figure, 1, a drive shaft; 2. a connecting rod; 3. connecting sleeves; 4. a first limiting part; 5. a movable groove; 6. a spreader; 7. a connecting cover; 8. a second limiting part; 9. a connecting cap; 10. a jacking piece; 10a, a jacking part; 10b, a support part; 11. a support groove; 12. a support ring; 13. positioning holes; 14. a locking hole; 15. a locking groove; 16. positioning a rod; 17. a movable body; 18. a first movable slot; 19. a first mating body; 20. a second mating body; 21. a second movable slot; 22. a thread groove; 23. a drive body; 24. a movable rail; 25. a rotating groove; 26. a rotating member; 27. a rotating part; 28. a termination portion; 29. a limiting cylinder.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
A clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing is disclosed, as shown in figures 1 to 13, and comprises a driving shaft 1, wherein the driving shaft 1 is in a circular truncated cone shape, and a connecting rod 2 coaxial with the driving shaft 1 is arranged at the end part of the driving shaft 1;
the connecting sleeve 3 is provided with a first limiting part 4 at the periphery of one end of the connecting sleeve 3, a movable groove 5 is formed in the connecting sleeve 3 along the axial direction of the connecting sleeve 3, one end of the movable groove 5 is attached to the connecting sleeve 3, the other end of the movable groove penetrates through the connecting sleeve 3, two sides of the movable groove 5 penetrate through the connecting sleeve 3, and an opening part 6 which is movably abutted against the outer wall of the driving shaft 1 is arranged on the inner wall of the connecting sleeve 3;
the connecting cover 7 is annular, partial structures of the connecting rod 2 and the driving shaft 1 can penetrate through the connecting cover 7, a second limiting part 8 is arranged on the periphery of one end, far away from the connecting sleeve 3, of the connecting cover 7, and the outer diameter of the second limiting part 8 is larger than that of the connecting sleeve 3;
the connecting cap 9 is in threaded connection with the connecting rod 2, and the outer diameter of the connecting cap 9 is larger than the inner diameter of the connecting cover 7;
the lifting piece 10 is externally connected with a driving structure used for driving the lifting piece 10 to move, and the driving structure can drive the lifting piece 10 to be close to or far away from the driving shaft 1.
The connecting sleeve 3 is close to an annular supporting groove 11 is formed in the inner wall of one end of the connecting cover 7, an annular supporting ring 12 is arranged on one side, close to the connecting cover 7, of the connecting sleeve 3, the cross section of the supporting ring 12 is L-shaped, and the outer diameter of the supporting ring 12 is smaller than the inner diameter of the supporting groove 11.
Two movable grooves 5 are formed, and the two movable grooves 5 are symmetrically positioned on two sides of the connecting sleeve 3. The number of the struts 6 is four, and two opposite struts 6 may form a ring shape. One side of the strutting piece 6, which is far away from the connecting sleeve 3, is inclined, and the direction of inclination of the part of the strutting piece 6, which is attached to the driving shaft 1, is the same as the direction of inclination of the part of the strutting piece 6, which is attached to the driving shaft 1. The edges of the strutting pieces 6 are all arranged in a round angle or a chamfer angle.
The jacking piece 10 comprises a jacking portion 10a and supporting portions 10b obliquely arranged on two sides of the jacking portion 10a, the two supporting portions 10b are opposite in oblique direction, and the jacking portion 10a and the two supporting portions 10b just form a C shape or a V shape on one side of the connecting sleeve 3.
The connecting rod 2 is far away from the drive shaft 1 one end middle part has seted up locating hole 13, run through one side of connecting rod 2 seted up with the communicating locking hole 14 of locating hole 13, connecting cap 9 deviates from the drive shaft 1 one end has seted up locking groove 15, locking groove 15 can rotate to right the locking hole 14, the activity is provided with locating lever 16 in the locating hole 13 and is used for adjusting the regulation structure of locating lever 16 position, the one end of locating lever 16 is located in the locking hole 14, the regulation structure adjustable the other end of locating lever 16 is located in locking groove 15 or be located in locking hole 14.
The adjusting structure comprises a movable body 17 movably arranged in the positioning hole 13, one side of the movable body 17 close to the positioning rod 16 is inclined, a T-shaped first movable groove 18 is formed in the inclined part of the movable body 17, and a first matching body 19 in sliding fit with the first movable groove 18 is arranged at the end part of the positioning rod 16;
a second matching body 20 with an I-shaped or T-shaped section is arranged on the inner wall of the positioning hole 13, a second movable groove 21 movably matched with the second matching body 20 is formed in the side part of the movable body 17, and the length direction of the second matching body 20 is consistent with that of the connecting rod 2;
a thread groove 22 is formed in the inner wall of the positioning hole 13, a driving body 23 is connected to the thread groove 22 in a threaded manner, and the driving body 23 is rotatably connected with the movable body 17.
Two circular arc-shaped movable rails 24 are arranged at one end of the movable body 17, a rotating groove 25 with a T-shaped cross section is formed in each movable rail 24, an annular rotating piece 26 is arranged at the end of the driving body 23, and each rotating piece 26 is movably matched with the corresponding rotating groove 25, so that when the driving body 23 rotates, the driving body 23 and the movable body 17 can rotate relatively, and when the driving body 23 moves along the axial direction of the connecting rod 2, the rotating pieces 26 can drive the movable rails 24 and the movable body 17 to move; a set distance is left between the thread groove 22 and the second matching body 20, a rotating part 27 is arranged at the end part of the driving body 23 far away from the movable body 17, and the diameter of the rotating part 27 is equal to the outer diameter of the connecting rod 2.
According to the clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing, when the dynamic diagnosis is performed on the double-row tapered roller bearing, firstly, only the connecting sleeve 3 is arranged on the driving shaft 1, and the connecting sleeve 3 enables the movable groove 5 to be in a fit state under the elastic action of the first limiting part 4, so that the connecting sleeve 3 is also in a slight circular truncated cone shape, namely the diameter of one end, close to the connecting rod 2, of the connecting sleeve 3 is smaller than that of one end, far away from the connecting rod 2, of the connecting sleeve 3, and the outer diameter of the whole connecting sleeve 3 is slightly smaller than that of the inner ring of the bearing, so that the inner ring of the bearing can be conveniently sleeved on the outer wall of the connecting sleeve 3.
After the bearing inner ring is sleeved on the connecting sleeve 3, the connecting cover 7 penetrates through the connecting rod 2 and one end with a smaller diameter of the driving shaft 1 until the second limiting part 8 is abutted to the end part of the bearing inner ring, the connecting cover 7 is attached to the inner wall of the bearing inner ring, then the connecting cap 9 is in threaded connection with the connecting rod 2, and along with the rotation of the rotating connecting cap 9, the connecting cap 9 is abutted to the side part of the connecting cover 7 and drives the connecting cover 7, the bearing and the connecting sleeve 3 to move (the other end of the bearing inner ring is abutted to the first limiting part 4); because the spreading member 6 is abutted against the outer wall of the truncated cone-shaped driving shaft 1, the distance between the inner wall of the connecting sleeve 3 and the axis of the driving shaft 1 is gradually increased by the spreading member 6 along with the movement of the spreading member 6, and the distance between the connecting sleeve 3 and the bearing inner ring is gradually reduced (or the included angle between the bus of the connecting sleeve 3 and the bus of the bearing inner ring is gradually reduced) in the process until the connecting sleeve 3 is completely attached to the inner wall of the bearing inner ring (the included angle between the bus of the connecting sleeve 3 and the bus of the bearing inner ring is zero); the fixing of the bearing inner ring is completed at this moment, the inner wall of the bearing inner ring is abutted against the outer wall of the connecting sleeve 3 and the connecting cover 7, and two ends of the bearing inner ring are abutted against the first limiting part 4 and the second limiting part 8 respectively.
Then drive structure drive jacking piece 10 is towards bearing inner race activity, on conflicting bearing outer race to make and reach the interaction force size of settlement between bearing inner race and the bearing outer race through drive structure and jacking piece 10, later alright set up two or other quantity's probe on bearing outer race for detect when drive shaft 1 drives bearing inner race rotation, the state of bearing outer race, then can diagnose root mean square value and kurtosis coefficient etc. of double-row tapered roller bearing through these states.
After finishing detecting, drive structure drive jacking piece 10 and bearing inner race separation, then only need take off connecting cap 9 from connecting rod 2, later take off in proper order connect lid 7 and bearing can, the bearing drives adapter sleeve 3 and moves towards connecting rod 2 direction when taking off, adapter sleeve 3 that has been strutted in this direction resumes to the round platform shape again under the elastic force effect of first spacing portion 4, consequently the bearing of being convenient for separates with adapter sleeve 3, and is simple and convenient.
Because no matter the bearing inner race is fixed or the detected bearing is taken down, the operation is convenient, and the operation is convenient and fast on the whole. Meanwhile, when the bearing inner ring of the driving shaft 1 rotates, the driving force of the bearing inner ring of the driving shaft 1 is the static friction force between the connecting sleeve 3 and the bearing inner ring and between the first limiting part 4 and the second limiting part 8 and the two ends of the bearing inner ring, so that the driving range of the bearing inner ring is wide, the local part of the bearing inner ring can be well prevented from being subjected to overlarge stress, and the protection effect on the bearing inner ring is achieved.
It should be understood that the driving power of the driving shaft 1 may be a conventional motor or a speed reducing motor, or may be other structures that can be realized, and is not limited herein.
The support ring 12 is L-shaped, which can improve the structural strength of the connecting cover 7, thereby well preventing the connecting cover 7 from deforming and prolonging the service life thereof; while the support grooves 11 provide space for the support ring 12 to move.
The two movable grooves 5 are formed, the two movable grooves 5 are positioned on two sides of the connecting sleeve 3, the number of the opening pieces 6 is four, the two opening pieces 6 are arranged on the inner wall of each half of the connecting sleeve 3, and the opening pieces 6 on the two half connecting sleeves 3 are completely symmetrical, so that when the connecting sleeve 3 moves on the driving shaft 1, the opening pieces 6 can uniformly drive the two half connecting sleeves 3 to open, and the two half connecting sleeves can be uniformly and symmetrically abutted against the inner wall of the bearing inner ring; and when the subsequent drive shaft 1 drives the connecting sleeve 3 and the bearing inner ring to rotate, the bearing inner ring and the drive shaft 1 can be ensured to have better coaxiality, and the detection quality is improved.
Wherein the lateral part of strutting piece 6 is the tilt state, and when strutting piece 6 fixes the bearing inner race just, strutting piece 6 is in the state of laminating on drive shaft 1 outer wall completely, consequently can make drive shaft 1 drive and strut when 6 and adapter sleeve 3 rotate, strut and have sufficient stiction between piece 6 and the drive shaft 1, has improved drive shaft 1 bearing inner race pivoted stability. When the opening part 6 slides on the driving shaft 1, the inclined shape of the opening part 6 and the round angle or chamfer of the edge of the opening part 6 can enable the opening part 6 to have a larger contact area with the driving shaft 1, so that the maximum stress between the opening part 6 and the driving shaft 1 can be better reduced, and the opening part 6 and the driving shaft 1 are protected. Wherein the edge of the spreader 6 is preferably rounded, so that the outer sidewall of the drive shaft 1 can be prevented from being scratched when the spreader 6 slides on the drive shaft 1.
The driving structure can be an oil cylinder or an air cylinder or a lead screw and other conventional structures, and the jacking piece 10 is positioned right below the driving shaft 1; after being lifted, the jacking piece 10 is abutted against the outer wall of the bearing outer ring through the inner walls of the two sides of the opening of the jacking piece, and applies a set acting force to the bearing outer ring. C or V font between lift portion 10a and the supporting part 10b, therefore it can be stable conflict in the both sides of bearing inner race, has improved the support stability to the bearing inner race. In another embodiment, the surface of the jacking portion 10a is further provided with a pressure sensor, the pressure sensor can transmit a pressure value between the outer rings of the bearings to a controller, and then the controller controls an oil cylinder or an air cylinder or a screw rod to move, so that the pressure value between the jacking portion 10a and the outer rings of the bearings reaches a set value or a set range value.
Wherein, the end of the first movable groove 18 far away from the movable rail 24 is further provided with a stopping part 28, the stopping part 28 can prevent the first matching body 19 from completely separating from the first movable groove 18, when the first matching body 19 is abutted against the stopping part 28, the end of the positioning rod 16 far away from the first matching body 19 is positioned in the locking hole 14, meanwhile, part of the structure of the driving body 23 is still positioned in the thread groove 22, and the end of the positioning rod 16 does not influence the normal movement of the connecting cap 9; when the end of the movable body 17 away from the driving body 23 abuts against the inner wall of the positioning hole 13, the end of the positioning rod 16 is located in the locking groove 15, and the first mating body 19 is also located in the first movable groove 18; the inner wall of the positioning hole 13 is provided with a cylindrical limiting cylinder 29, the limiting cylinder 29 is in a cavity shape, the positioning rod 16 penetrates through the limiting cylinder 29 and is attached to the inner wall of the limiting cylinder 29, the limiting cylinder 29 enables the positioning rod 16 to be more stable in lifting, excessive torsion between the positioning rod 16 and the locking hole 14 is prevented, and the limiting cylinder 29 does not interact with the movable body 17 and the driving body 23 in the whole process.
When fixing the bearing inner race to the connecting sleeve 3, the first engaging body 19 abuts against the stop 28, and when the connecting cap 9 drives the connecting cover 7 to the set position, the fixing of the bearing inner race is completed, and at the same time the locking groove 15 is aligned with the locking hole 14; then, the driving body 23 is rotated by the rotating portion 27, and during the rotation of the driving body 23, the driving body 23 interacts with the thread groove 22, so that the driving body 23 can move towards the direction of entering the positioning hole 13, and at the same time, the inclined structure of the movable body 17 enables the positioning rod 16 to pass through the locking hole 14 and enter the locking groove 15, thereby completing the positioning of the connecting cap 9.
Wherein in the time of actual detection, if only through threaded connection between connecting cap 9 and connecting rod 2, then there is probably the condition that the two are not hard up in the rotation process, so just arouse the accident of adapter sleeve 3 landing from drive shaft 1 easily, detect the security lower. However, after the positioning rod 16 passes through the locking hole 14 and the locking groove 15, the positioning rod 16 can prevent the connecting cap 9 from rotating, so that the connecting cap 9 is prevented from rotating on the connecting rod 2, the position stability of the connecting cap 9 can be improved well, and the stability of fixing the inner ring of the bearing is also improved.
Wherein, since the outer diameter of the rotation portion 27 is equal to or smaller than the outer diameter of the connection rod 2, it does not affect the connection and separation between the connection cap 9 and the connection rod 2. Meanwhile, the side walls of the movable body 17 are attached to the inner walls of the positioning holes 13, so that the movable body 17 can have high position stability. The movable direction of the movable body 17 is limited by the second matching body 20, so that the movable body can be stably attached to the inner wall of the positioning hole 13. The reason why the distance between the end of the screw groove 22 and the second engaging body 20 is set is that the driving body 23 does not rotate to approach or interfere with the second engaging body 20 during actual use, thereby reducing the difficulty of processing.
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A clamping mechanism for dynamic diagnosis of a double-row tapered roller bearing is characterized in that: the device comprises a driving shaft (1), wherein the driving shaft (1) is in a circular truncated cone shape, and a connecting rod (2) coaxial with the driving shaft (1) is arranged at the end part of the driving shaft (1);
the connecting sleeve is characterized by comprising a connecting sleeve (3), a first limiting part (4) is arranged on the periphery of one end of the connecting sleeve (3), a movable groove (5) is formed in the connecting sleeve (3) along the axial direction of the connecting sleeve (3), one end of the movable groove (5) is attached to the connecting sleeve (3), the other end of the movable groove penetrates through the connecting sleeve (3), two sides of the movable groove (5) penetrate through the connecting sleeve (3), and a spreading part (6) which movably abuts against the outer wall of the driving shaft (1) is arranged on the inner wall of the connecting sleeve (3);
the connecting cover (7) is annular, partial structures of the connecting rod (2) and the driving shaft (1) can penetrate through the connecting cover (7), a second limiting part (8) is arranged on the periphery of one end, far away from the connecting sleeve (3), of the connecting cover (7), and the outer diameter of the second limiting part (8) is larger than that of the connecting sleeve (3);
the connecting cap (9) is in threaded connection with the connecting rod (2), and the outer diameter of the connecting cap (9) is larger than the inner diameter of the connecting cover (7);
jacking piece (10), jacking piece (10) are external to be used for the drive jacking piece (10) movable drive structure, drive structure can drive jacking piece (10) are close to or keep away from drive shaft (1).
2. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 1, wherein: the connecting sleeve (3) is close to an annular supporting groove (11) is formed in the inner wall of one end of the connecting cover (7), the connecting cover (7) is close to one side of the connecting sleeve (3) and is provided with an annular supporting ring (12), the cross section of the supporting ring (12) is L-shaped, and the outer diameter of the supporting ring (12) is smaller than the inner diameter of the supporting groove (11).
3. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 1 or 2, wherein: two movable grooves (5) are formed, and the two movable grooves (5) are symmetrically arranged on two sides of the connecting sleeve (3).
4. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 3, wherein: the number of the strutting pieces (6) is four, and two opposite strutting pieces (6) can form a ring shape.
5. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 4, wherein: one side of the strutting piece (6) far away from the connecting sleeve (3) is in an inclined shape, and the strutting piece (6) is attached to the inclined direction of the part of the driving shaft (1) and the inclined direction of the part of the strutting piece (6) attached to the driving shaft (1) are the same.
6. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 4, wherein: the edges of the strutting pieces (6) are all arranged in a round angle or a chamfer angle.
7. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 1, wherein: the jacking piece (10) comprises a jacking portion (10a) and supporting portions (10b) which are obliquely arranged on two sides of the jacking portion (10a), the two supporting portions (10b) are opposite in oblique direction, and the jacking portion (10a) and the two supporting portions (10b) are right opposite to one side of the connecting sleeve (3) to form a C shape or a V shape.
8. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 1, wherein: locating hole (13) have been seted up in the one end middle part of drive shaft (1) is kept away from in connecting rod (2), run through one side of connecting rod (2) seted up with communicating locking hole (14) of locating hole (13), connect cap (9) to deviate from locking groove (15) have been seted up to the one end of drive shaft (1), locking groove (15) can rotate to right to locking hole (14), the activity is provided with locating lever (16) in locating hole (13) and is used for adjusting the regulation structure of locating lever (16) position, the one end of locating lever (16) is located in locking hole (14), it is adjustable to adjust the structure the other end of locating lever (16) is located in locking groove (15) or be located in locking hole (14).
9. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 8, wherein: the adjusting structure comprises a movable body (17) movably arranged in the positioning hole (13), one side of the movable body (17) close to the positioning rod (16) is inclined, a T-shaped first movable groove (18) is formed in the inclined part of the movable body (17), and a first matching body (19) in sliding fit with the first movable groove (18) is arranged at the end part of the positioning rod (16);
a second matching body (20) with an I-shaped or T-shaped section is arranged on the inner wall of the positioning hole (13), a second movable groove (21) which is movably matched with the second matching body (20) is formed in the side part of the movable body (17), and the length direction of the second matching body (20) is consistent with the length direction of the connecting rod (2);
the inner wall of the positioning hole (13) is provided with a thread groove (22), the thread groove (22) is connected with a driving body (23) in a threaded mode, and the driving body (23) is rotationally connected with the movable body (17).
10. The clamping mechanism for the dynamic diagnosis of the double-row tapered roller bearing according to claim 9, wherein: the one end of activity body (17) is provided with two convex activity rails (24), set up rotation groove (25) that the cross-section is the T font on activity rail (24), the tip of driving body (23) is provided with annular rotation piece (26), rotate piece (26) with rotate groove (25) clearance fit, thread groove (22) with leave the settlement distance between second cooperation body (20), driving body (23) are kept away from the tip of activity body (17) is provided with rotation portion (27), the diameter of rotation portion (27) equals the external diameter of connecting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010544055.4A CN111571492A (en) | 2020-06-15 | 2020-06-15 | Clamping mechanism for dynamic diagnosis of double-row tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010544055.4A CN111571492A (en) | 2020-06-15 | 2020-06-15 | Clamping mechanism for dynamic diagnosis of double-row tapered roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111571492A true CN111571492A (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010544055.4A Pending CN111571492A (en) | 2020-06-15 | 2020-06-15 | Clamping mechanism for dynamic diagnosis of double-row tapered roller bearing |
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| Country | Link |
|---|---|
| CN (1) | CN111571492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418989A (en) * | 2021-08-19 | 2021-09-21 | 南通辰同智能科技有限公司 | Ultrasonic liquid immersion detection assembly for large bearing roller |
-
2020
- 2020-06-15 CN CN202010544055.4A patent/CN111571492A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418989A (en) * | 2021-08-19 | 2021-09-21 | 南通辰同智能科技有限公司 | Ultrasonic liquid immersion detection assembly for large bearing roller |
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