CN212722043U - Bearing rigidity test experimental device - Google Patents
Bearing rigidity test experimental device Download PDFInfo
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- CN212722043U CN212722043U CN202021638835.7U CN202021638835U CN212722043U CN 212722043 U CN212722043 U CN 212722043U CN 202021638835 U CN202021638835 U CN 202021638835U CN 212722043 U CN212722043 U CN 212722043U
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Abstract
The utility model discloses a bearing rigidity test experimental apparatus, including device main part, base, electric telescopic handle, support column and support flat board, one side of device main part bottom is fixed with the base, and installs electric telescopic handle on the outer wall of base one side to be provided with location structure on the base outer wall of electric telescopic handle one side, one side on device main part top is provided with first supporting block, and all articulates on location structure's the both sides outer wall has first connecting arm to one side on first connecting arm top articulates there is first locating piece, the bottom of first locating piece and the top fixed connection of device main part, the both sides on device main part top all are fixed with the support column, and one side slidable mounting on support column surface has the slip flat board. The utility model discloses not only improve the detection application scope of device, reduce staff's operation intensity, still can make the radial and axial rigidity of device simultaneous measurement bearing.
Description
Technical Field
The utility model relates to a bearing rigidity test technical field specifically is a bearing rigidity test experimental apparatus.
Background
Bearing stiffness, which reflects the ability of the spindle assembly to resist static external loads, is typically measured as the elastic deformation of the front end of the bearing per unit displacement, the acting force applied in the displacement direction is defined, in the main shaft-bearing system, the rigidity of the bearing is mainly determined by the factors of the bearing pre-tightening configuration mode, the pre-tightening force, the bearing pairing mode, the matching of the bearing and the shaft, the main shaft rotating speed, the bearing temperature rise and the like, along with the development of high-speed and high-precision processing technology, more demands are placed on the spindle-bearing system, in particular to ensure that the spindle-bearing system has an optimum stiffness by precisely controlling the bearing preload, therefore, it is very important to study the influence of the configuration mode of the pretightening force and the magnitude of the pretightening force on the bearing rigidity and accurately test the rigidity of the bearing, and a bearing rigidity test experimental device is often required to be used in the bearing rigidity detection process.
The bearing rigidity test experimental device on the market is various and can basically meet the use requirements of people, but certain defects still exist, and the following points exist in the concrete problems.
(1) The existing bearing rigidity test experimental device is difficult to effectively fix bearings with different specifications in the use process, and the detection application range of the device is reduced;
(2) when the existing bearing rigidity test experimental device works, a single group of bearings are mostly detected, and the average value is obtained due to the fact that multiple times of detection are needed, so that the workload of workers is increased, and the operation intensity of the workers is increased;
(3) the existing bearing rigidity test experimental device mostly performs single detection on the radial direction or the axial direction when in use, and brings inconvenience to the operation of workers.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bearing rigidity test experimental apparatus to the detection application scope who provides the device in solving above-mentioned background art is limited, detect the problem that the operation intensity is high and be difficult to radial axial together detection many times.
In order to achieve the above object, the utility model provides a following technical scheme: a bearing rigidity test experimental device comprises a device main body, a base, an electric telescopic rod, a supporting column and a supporting flat plate, wherein the base is fixed at one side of the bottom end of the device main body, the electric telescopic rod is installed on the outer wall of one side of the base, a positioning structure is arranged on the outer wall of the base at one side of the electric telescopic rod, a first supporting block is arranged at one side of the top end of the device main body, first connecting arms are hinged to the outer walls of the two sides of the positioning structure, a first positioning block is hinged to one side of the top end of each first connecting arm, the bottom end of each first positioning block is fixedly connected with the top end of the device main body, the supporting column is fixed at the two sides of the top end of the device main body, a sliding flat plate is installed at one side of the surface of the supporting column in a sliding mode, first, and the both sides of supporting dull and stereotyped bottom all install first cylinder, the bottom of first cylinder and the dull and stereotyped top fixed connection that slides, control panel is installed to one side on device main part top, and the output of the inside singlechip of control panel coordinates the inside electrical equipment of device through control panel with electric telescopic handle, first cylinder and first force transducer's input electric connection respectively, makes it be convenient for the staff to operate.
Preferably, one side at device main part top is fixed with the spacing, and threaded shaft is installed to the inside one side of spacing to the handle is installed to the one end of threaded shaft, can drive the threaded shaft through the handle and rotate together.
Preferably, a second cylinder is installed at one side of the top end of the device main body, and a second force sensor is installed at one end of the second cylinder.
Preferably, a screw rod is installed on one side of the bottom end of the device main body, the top end of the screw rod extends to the outside of the device main body, a second supporting block is hinged to one side of the top end of the screw rod, a second connecting arm is hinged to the outer wall of one side of the second supporting block, and a second positioning block is hinged to one side of the top end of the second connecting arm.
Preferably, one side at device main part top is provided with the sliding tray, and the inside one end of sliding tray installs the sliding block, and the top of sliding block extends to the outside of sliding tray.
Preferably, fixed cover of first fixed cover, right-angle frame, guide bar and second is provided with on one side of location structure's inside, one side on electric telescopic rod surface is fixed with first fixed cover, and just one side on first fixed cover surface articulates there is the right-angle frame, and the top of right-angle frame is articulated each other with the bottom of device main part.
Preferably, the one end that first fixed cover was kept away from to the right-angle frame articulates there is the fixed cover of second, and the fixed inside one side of cover of second is fixed with the guide bar, the top of guide bar extend to the outside of device main part and with the bottom fixed connection of first supporting block, can fix two sets of bearings through location structure.
Preferably, the end of the threaded shaft, which is far away from the outer wall of the limiting frame, is fixed with a sliding plate, the bottom end of the sliding plate is fixedly connected with the top end of the sliding block, the outer wall of one side of the sliding plate is provided with a first eddy current displacement sensor, the outer wall of the sliding plate on one side of the first eddy current displacement sensor is provided with a second eddy current displacement sensor, and the second eddy current displacement sensor can detect the axial displacement of the bearing.
Compared with the prior art, the beneficial effects of the utility model are that: the bearing rigidity test experimental device not only improves the detection application range of the device and reduces the operation intensity of workers, but also enables the device to simultaneously measure the radial rigidity and the axial rigidity of the bearing;
(1) through being provided with electric telescopic handle, right angle frame and direction, take out two bearings, make it arrange the top of device main part in, carry out work through control panel control electric telescopic handle afterwards, because of right angle frame and articulated, then electric telescopic handle drives first fixed cover when moving to the right side, can drive the perk of right angle frame, because the other end of right angle frame is articulated with second fixed cover, then right angle frame can drive the guide bar and jack up upwards, namely the guide bar jacks up the location structure, because first connecting arm and first supporting block are articulated, first connecting arm can push down one end of first locating piece, then manual rotation screw rod, make it promote the second supporting block to jack up upwards, utilize the second connecting arm to drive the second locating piece inferior downwards, thereby the opposite side top of fixed bearing, thereby accomplish the fixing of two sets of bearings, realize that the device can fix the bearing of different specifications, the detection application range of the device is improved;
(2) the first cylinder is controlled by the control panel to work by the support column, the sliding flat plate and the first eddy current displacement sensor, so that the sliding flat plate is pushed to slide on the surface of the support column, the sliding flat plate and the first force sensor descend, the first eddy current displacement sensor is used for measuring the deformation of the test bearing, the position of a displacement measuring point is directly above the radial rigidity of the bearing, the force application process is carried out slowly, after the maximum allowable displacement is reached, the stress application is stopped immediately, the stress application is kept for one to two minutes in the state, the stress application is unloaded after the reading of each measuring instrument is stabilized, then the signals collected by the first force sensor and the first eddy current displacement sensor are input into a control panel, the test data are subjected to curve fitting to obtain a rigidity curve, so that the operation intensity of workers is effectively reduced by measuring two groups of bearings at the same time;
(3) through being provided with the sliding plate, second force sensor and threaded shaft, through manual rotation handle, make it drive the threaded shaft rotation, then the threaded shaft drives sliding plate and second eddy current displacement sensor one and moves to bearing one side, promote second force sensor through the second cylinder afterwards to make second force sensor and bearing contact, measure the deflection of test bearing with second eddy current displacement sensor this moment, the position of displacement measurement point is at the dead ahead axial rigidity of bearing, realize that the device can measure bearing radial and axial rigidity simultaneously, the use convenience of hoisting device.
Drawings
Fig. 1 is a schematic view of a front view cross-sectional structure of the present invention;
FIG. 2 is a schematic side sectional view of the main body of the device of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;
FIG. 5 is an enlarged schematic view of the positioning structure of the present invention;
in the figure: 1. a device main body; 2. a base; 3. an electric telescopic rod; 4. a positioning structure; 401. a first fixing sleeve; 402. a right-angle frame; 403. a guide bar; 404. a second fixing sleeve; 5. a first support block; 6. a first connecting arm; 7. a first positioning block; 8. a support pillar; 9. sliding the flat plate; 10. supporting the flat plate; 11. a first cylinder; 12. a first force sensor; 13. a control panel; 14. a limiting frame; 15. a threaded shaft; 16. a handle; 17. a sliding plate; 18. a second force sensor; 19. a second cylinder; 20. a first eddy current displacement sensor; 21. a second eddy current displacement sensor; 22. a screw; 23. a second support block; 24. a second connecting arm; 25. a second positioning block; 26. a sliding groove; 27. and a slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: a bearing rigidity test experimental device comprises a device main body 1, a base 2, an electric telescopic rod 3, a support column 8 and a support flat plate 10, wherein the base 2 is fixed on one side of the bottom end of the device main body 1, the electric telescopic rod 3 is installed on the outer wall of one side of the base 2, the type of the electric telescopic rod 3 can be DYTZB1000-500, and a positioning structure 4 is arranged on the outer wall of the base 2 on one side of the electric telescopic rod 3;
a first fixing sleeve 401, a right-angle frame 402, a guide rod 403 and a second fixing sleeve 404 are arranged on one side inside the positioning structure 4, the first fixing sleeve 401 is fixed on one side of the surface of the electric telescopic rod 3, the right-angle frame 402 is hinged to one side of the surface of the first fixing sleeve 401, the top end of the right-angle frame 402 is hinged to the bottom end of the device main body 1, the second fixing sleeve 404 is hinged to one end, away from the first fixing sleeve 401, of the right-angle frame 402, the guide rod 403 is fixed on one side inside the second fixing sleeve 404, and the top end of the guide rod 403 extends to the outside of the device main body 1 and is fixedly connected with the bottom end of the;
a screw 22 is installed on one side of the bottom end of the device main body 1, the top end of the screw 22 extends to the outside of the device main body 1, a second supporting block 23 is hinged to one side of the top end of the screw 22, a second connecting arm 24 is hinged to the outer wall of one side of the second supporting block 23, and a second positioning block 25 is hinged to one side of the top end of the second connecting arm 24;
the two bearings are taken out and placed at the top end of the device main body 1, and then the electric telescopic rod 3 is controlled to work through the control panel 13, because the right-angle frames 402 and 41 are hinged, the electric telescopic rod 3 can drive the right-angle frame 402 to tilt while driving the first fixing sleeve 401 to move towards the right side, and because the other end of the right-angle frame 402 is hinged with the second fixing sleeve 404, the right-angle frame 402 can drive the guide rod 403 to jack upwards, i.e. the guide bar 403 pushes up the positioning structure 4, since the first connecting arm 6 and the first supporting block 5 are hinged, the first connecting arm 6 can press down one end of the first positioning block 7, and then the screw 22 is rotated manually to push the second supporting block 23 upwards, so that the second connecting arm 24 drives the second positioning block 25 downwards, thereby fixing the top end of the other side of the bearing, completing the fixation of two groups of bearings and realizing that the device can fix the bearings with different specifications;
one side of the top end of the device main body 1 is provided with a first supporting block 5, the outer walls of two sides of the positioning structure 4 are hinged with first connecting arms 6, one side of the top end of each first connecting arm 6 is hinged with a first positioning block 7, the bottom end of each first positioning block 7 is fixedly connected with the top end of the device main body 1, two sides of the top end of the device main body 1 are both fixed with supporting columns 8, one side of the surface of each supporting column 8 is slidably provided with a sliding flat plate 9, two sides of the bottom end of each sliding flat plate 9 are both provided with first force sensors 12, the type of each first force sensor 12 can be DBSL-30T, one side of the top end of each supporting column 8 is fixed with a supporting flat plate 10, two sides of the bottom end of each supporting flat plate 10 are both provided with first air cylinders 11, the bottom end of each first air cylinder 11 is fixedly connected with the top end of each sliding flat plate 9, one side of the top end of, the output end of the singlechip in the control panel 13 is electrically connected with the input ends of the electric telescopic rod 3, the first cylinder 11 and the first force sensor 12 respectively;
after the two groups of bearings are fixed, the first air cylinder 11 can be controlled to work through the control panel 13, the sliding flat plate 9 is pushed to slide on the surface of the supporting column 8, at the moment, the sliding flat plate 9 and the first force sensor 12 descend, the deformation of the tested bearing is measured by using the first eddy current displacement sensor 20, the radial rigidity of the position of a displacement measuring point is right above the bearing, the force application process is slowly carried out, after the maximum allowable displacement is reached, the force application is immediately stopped, the state is kept for one to two minutes, the unloading is carried out after the reading of each measuring instrument is stable, then the signals collected by the first force sensor 12 and the first eddy current displacement sensor 20 are input into the control panel 13, the test data are subjected to curve fitting to obtain a rigidity curve, and therefore the working strength of a worker is effectively reduced by measuring the two groups of bearings at the same time;
a limiting frame 14 is fixed on one side of the top end of the device main body 1, a threaded shaft 15 is installed on one side inside the limiting frame 14, and a handle 16 is installed at one end of the threaded shaft 15;
a sliding plate 17 is fixed at one end of the threaded shaft 15 far away from the outer wall of the limiting frame 14, the bottom end of the sliding plate 17 is fixedly connected with the top end of the sliding block 27, a first eddy current displacement sensor 20 is installed on the outer wall of one side of the sliding plate 17, the type of the first eddy current displacement sensor 20 can be HZ891XL, a second eddy current displacement sensor 21 is installed on the outer wall of the sliding plate 17 on one side of the first eddy current displacement sensor 20, and the type of the second eddy current displacement sensor 21 can be HZ891 XL;
a second cylinder 19 is installed on one side of the top end of the device main body 1, the type of the second cylinder 19 can be SC50X20, and a second force sensor 18 is installed on one end of the second cylinder 19, the type of the second force sensor 18 can be DBSL-30T;
a sliding groove 26 is arranged on one side of the top end of the device main body 1, a sliding block 27 is installed at one end inside the sliding groove 26, and the top end of the sliding block 27 extends to the outside of the sliding groove 26;
the handle 16 is manually rotated to drive the threaded shaft 15 to rotate, the threaded shaft 15 drives the sliding plate 17 and the second eddy current displacement sensor 21 to move towards one side of the bearing together, then the second force sensor 18 is pushed through the second air cylinder 19, the second force sensor 18 is in contact with the bearing, at the moment, the second eddy current displacement sensor 21 is used for measuring the deformation of the bearing to be tested, the axial rigidity of the displacement measuring point is positioned right in front of the bearing, and the device can simultaneously measure the radial rigidity and the axial rigidity of the bearing.
The working principle is as follows: when the device is used, firstly, two bearings are taken out and are arranged at the top end of the device main body 1, then the electric telescopic rod 3 is controlled to work through the control panel 13, because the right-angle frames 402 and 41 are hinged, the electric telescopic rod 3 can drive the first fixing sleeve 401 to move towards the right side and simultaneously drive the right-angle frame 402 to tilt, because the other end of the right-angle frame 402 is hinged with the second fixing sleeve 404, the right-angle frame 402 can drive the guide rod 403 to jack upwards, namely the guide rod 403 jacks up the positioning structure 4, because the first connecting arm 6 is hinged with the first supporting block 5, the first connecting arm 6 can press one end of the first positioning block 7 downwards, then the screw rod 22 is rotated manually to push the second supporting block 23 to jack upwards, the second connecting arm 24 is utilized to drive the second positioning block 25 to move downwards, so as to fix the top ends of the other sides of the bearings, thereby fixing the two groups of bearings, and realizing that the device can fix the bearings with different specifications, the detection application range of the device is improved, after two groups of bearings are fixed, the first air cylinder 11 can be controlled to work through the control panel 13 to push the sliding flat plate 9 to slide on the surface of the supporting column 8, at the moment, the sliding flat plate 9 and the first force sensor 12 descend, the deformation of the tested bearing is measured by the first eddy current displacement sensor 20, the radial rigidity of the displacement measuring point is positioned right above the bearing, the force application process is slowly carried out, after the maximum allowable displacement is reached, the force application is immediately stopped, the state is kept for one to two minutes, the measurement instrument is unloaded after the reading of each measurement instrument is stable, then the signals collected by the first force sensor 12 and the first eddy current displacement sensor 20 are input into the control panel 13, the test data are subjected to curve fitting to obtain a rigidity curve, so that the working intensity of workers is effectively reduced by measuring the two groups of bearings at the same time, the handle 16 is rotated manually to drive the threaded shaft 15 to rotate, the threaded shaft 15 drives the sliding plate 17 and the second eddy current displacement sensor 21 to move towards one side of the bearing together, then the second force sensor 18 is pushed through the second air cylinder 19, the second force sensor 18 is in contact with the bearing, at the moment, the second eddy current displacement sensor 21 is used for measuring the deformation of the bearing to be tested, the axial rigidity of the displacement measuring point is located right in front of the bearing, the radial rigidity and the axial rigidity of the bearing can be measured simultaneously by the device, and the use convenience of the device is improved.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a bearing rigidity test experimental apparatus, includes device main part (1), base (2), electric telescopic handle (3), support column (8) and support flat board (10), its characterized in that: the device is characterized in that a base (2) is fixed on one side of the bottom end of a device main body (1), an electric telescopic rod (3) is installed on the outer wall of one side of the base (2), a positioning structure (4) is arranged on the outer wall of the base (2) on one side of the electric telescopic rod (3), a first supporting block (5) is arranged on one side of the top end of the device main body (1), first connecting arms (6) are hinged on the outer walls of the two sides of the positioning structure (4), a first positioning block (7) is hinged on one side of the top end of the first connecting arm (6), the bottom end of the first positioning block (7) is fixedly connected with the top end of the device main body (1), supporting columns (8) are fixed on the two sides of the top end of the device main body (1), a sliding flat plate (9) is slidably installed on one side of the surface of each supporting column (8), and first force, one side on support column (8) top is fixed with supports dull and stereotyped (10), and supports the both sides of dull and stereotyped (10) bottom and all install first cylinder (11), the bottom of first cylinder (11) and the top fixed connection of slip flat board (9), control panel (13) are installed to one side on device main part (1) top, the output of the inside singlechip of control panel (13) respectively with electric telescopic handle (3), first cylinder (11) and the input electric connection of first force sensor (12).
2. The bearing rigidity test experimental device according to claim 1, characterized in that: one side on device main part (1) top is fixed with spacing frame (14), and threaded shaft (15) are installed to the inside one side of spacing frame (14) to handle (16) are installed to the one end of threaded shaft (15).
3. The bearing rigidity test experimental device according to claim 1, characterized in that: a second cylinder (19) is installed on one side of the top end of the device main body (1), and a second force sensor (18) is installed at one end of the second cylinder (19).
4. The bearing rigidity test experimental device according to claim 1, characterized in that: the device is characterized in that a screw rod (22) is installed on one side of the bottom end of the device main body (1), the top end of the screw rod (22) extends to the outside of the device main body (1), a second supporting block (23) is hinged to one side of the top end of the screw rod (22), a second connecting arm (24) is hinged to the outer wall of one side of the second supporting block (23), and a second positioning block (25) is hinged to one side of the top end of the second connecting arm (24).
5. The bearing rigidity test experimental device according to claim 1, characterized in that: one side on device main part (1) top is provided with sliding tray (26), and sliding block (27) are installed to the inside one end of sliding tray (26), and the top of sliding block (27) extends to the outside of sliding tray (26).
6. The bearing rigidity test experimental device according to claim 1, characterized in that: the device is characterized in that a first fixing sleeve (401), a right-angle frame (402), a guide rod (403) and a second fixing sleeve (404) are arranged on one side of the inside of the positioning structure (4), the first fixing sleeve (401) is fixed on one side of the surface of the electric telescopic rod (3), the right-angle frame (402) is hinged to one side of the surface of the first fixing sleeve (401), and the top end of the right-angle frame (402) is hinged to the bottom end of the device main body (1).
7. The bearing rigidity test experimental device according to claim 6, characterized in that: the one end that first fixed cover (401) was kept away from in right-angle frame (402) articulates there is fixed cover of second (404), and the inside one side of fixed cover of second (404) is fixed with guide bar (403), the top of guide bar (403) extend to the outside of device main part (1) and with the bottom fixed connection of first supporting block (5).
8. The bearing rigidity test experimental device according to claim 2, characterized in that: the screw shaft (15) is kept away from one end of the outer wall of the limiting frame (14) and is fixed with a sliding plate (17), the bottom end of the sliding plate (17) is fixedly connected with the top end of a sliding block (27), a first eddy current displacement sensor (20) is installed on the outer wall of one side of the sliding plate (17), and a second eddy current displacement sensor (21) is installed on the outer wall of the sliding plate (17) of one side of the first eddy current displacement sensor (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021638835.7U CN212722043U (en) | 2020-08-10 | 2020-08-10 | Bearing rigidity test experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021638835.7U CN212722043U (en) | 2020-08-10 | 2020-08-10 | Bearing rigidity test experimental device |
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| CN212722043U true CN212722043U (en) | 2021-03-16 |
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| CN202021638835.7U Active CN212722043U (en) | 2020-08-10 | 2020-08-10 | Bearing rigidity test experimental device |
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| CN (1) | CN212722043U (en) |
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