CN218098307U - Slewing bearing loading test equipment - Google Patents
Slewing bearing loading test equipment Download PDFInfo
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- CN218098307U CN218098307U CN202222599093.7U CN202222599093U CN218098307U CN 218098307 U CN218098307 U CN 218098307U CN 202222599093 U CN202222599093 U CN 202222599093U CN 218098307 U CN218098307 U CN 218098307U
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Abstract
The utility model discloses a slewing bearing loading test equipment, including two annular loading frames, be provided with first loading device between two annular loading frames, all install second loading device on every annular loading frame, third loading device, fourth loading device, actuating system and temperature simulation device, two bearings are installed respectively in annular loading frame, actuating system is used for driving the bearing inner circle and rotates for the outer lane, temperature simulation device is used for heating the bearing, still including the control system who connects each device, a data parameter for controlling the work of each device and measuring the bearing. The device can be used for carrying out comparison research on two sets of bearings with the same specification under the same working condition or different working conditions at the same time, evaluation and analysis can be carried out in the test process, early identification and early diagnosis of the fault of the bearing to be tested are realized, and the test period and the cost are saved.
Description
Technical Field
The utility model relates to a bearing detection area especially relates to a slewing bearing load test equipment.
Background
The main bearing of the full-face tunnel boring machine is a key part of a cutter head driving system, bears main load of the boring machine in the operation process, is quite bad in working condition, has very important influence on tunnel construction due to the good and bad performance, is extremely difficult or even infeasible to carry out field maintenance or replacement if a main bearing fails in the boring process, and brings huge safety risk and unpredictable economic loss.
Before the bearing is applied in engineering, an industrial test needs to be carried out through a test platform, so that the performance of the bearing can meet the requirements of installation and engineering application, and the reliability is verified. At present, relatively few test devices aiming at the main bearing of the full-face tunnel boring machine are still in a searching stage. The method has the advantages that the two sets of main drive bearings with the same specification can not be independently loaded to apply the same load, the performance of the test bearings can not be rapidly judged by monitoring the comparative analysis of the state quantity in the test process, the use performance of the main drive bearings in the large-buried-depth high-confining-pressure and long-distance tunneling strong temperature rise environment can not be simulated, and the reliability verification of the performance of the main bearings of the tunneling machine in the future deep-buried deep and long tunnel construction environment can not be easily carried out.
Therefore, how to provide a slewing bearing loading test device capable of simultaneously carrying out two sets of bearing comparison tests is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a slewing bearing loading test equipment through being provided with two annular loading frames and supporting a plurality of loading devices, can develop the contrast research of two sets of bearings simultaneously to the operating condition of simulation tunnel tunnelling.
In order to solve the technical problem, the utility model provides a slew bearing loading test equipment, including two annular loading frames of axis level and coaxial arrangement, two be provided with first loading device, every between the annular loading frame all install second loading device, third loading device, fourth loading device, actuating system and temperature simulation device on the annular loading frame, two bearings install respectively in the annular loading frame, first loading device is used for applying axial load to the medial surface of bearing inner race, second loading device is used for applying axial load to the lateral surface of bearing inner race, third loading device is used for applying radial load to the outer peripheral face of bearing inner race, fourth loading device is used for applying the overturning moment to the bearing below, actuating system is used for driving the bearing inner race to rotate for the outer lane, temperature simulation device is used for heating the bearing, still includes the control system who connects each device for the work of controlling each device and measure the data parameter of bearing.
Preferably, the first loading device comprises a plurality of axially extending first oil cylinders, two ends of each first oil cylinder are respectively hinged to the inner side end faces of the two annular loading frames, and the first oil cylinders are sequentially and uniformly distributed along the circumferential direction.
Preferably, the second loading device comprises a plurality of second oil cylinders extending axially, one end of each second oil cylinder is connected with the annular loading frame, the other end of each second oil cylinder is abutted to the end face of the outer side of the outer ring of the bearing, and the second oil cylinders are sequentially and uniformly distributed along the circumferential direction.
Preferably, the third loading device comprises a plurality of radially extending third oil cylinders, one end of each third oil cylinder is hinged to the annular loading frame, the other end of each third oil cylinder abuts against the outer peripheral surface of the outer ring of the bearing, and the third oil cylinders are sequentially and uniformly distributed along the circumferential direction.
Preferably, the annular loading frame comprises two rows of third oil cylinders which are arranged in parallel, wherein an installation groove is formed in the inner periphery of the annular loading frame, and the third oil cylinders are arranged in the installation groove.
Preferably, the fourth loading device comprises a plurality of vertical fourth oil cylinders, the lower ends of the fourth oil cylinders are fixed, the upper ends of the fourth oil cylinders are hinged to the lower end face of the annular loading frame, and the fourth oil cylinders are arranged at four corners of the lower end face of the annular loading frame respectively.
Preferably, a groove with a downward opening is formed in the middle of the lower end face of the annular loading frame, a supporting seat is installed in the groove, and an elastic cushion block is arranged between the supporting seat and the groove.
Preferably, the driving system comprises a variable frequency motor and a speed reducing mechanism which are connected with each other, a conveying shaft of the speed reducing mechanism is meshed with inner teeth of an inner ring of the bearing through a gear, the variable frequency motor is connected with a torque and rotating speed measuring instrument, and the driving systems are sequentially and uniformly distributed on the end face of the outer side of the annular loading frame along the circumferential direction.
Preferably, the temperature simulator comprises a heating device installed in a heating groove on the inner peripheral surface of the annular loading frame.
Preferably, a flange is arranged between the two annular loading frames, and two ends of the flange are respectively connected with the two bearing inner rings.
The utility model provides a slewing bearing loading test equipment, two annular loading frames including axis level and coaxial arrangement, be provided with first loading device between two annular loading frames, all install the second loading device on every annular loading frame, the third loading device, the fourth loading device, actuating system and temperature analogue means, two bearings are installed respectively in annular loading frame, first loading device is used for applying axial load to the medial surface of bearing inner race, the second loading device is used for applying axial load to the outside terminal surface of bearing inner race, the third loading device is used for applying radial load to the outer peripheral face of bearing inner race, the fourth loading device is used for applying the moment of overturning to the bearing below, actuating system is used for driving the bearing inner race to rotate for the outer lane, the temperature analogue means is used for heating the bearing, still including the control system who connects each device, a data parameter for controlling the work of each device and measuring the bearing.
In the working process, the two bearings are respectively a bearing to be tested and a calibration bearing and are respectively installed in the two annular loading frames, loads in different directions are applied through the multiple loading devices, the temperature simulation device heats the bearings, parameter data are obtained through the control system, comprehensive loads, high confining pressure and strong temperature rise environments borne by the bearings in the excavation of unfavorable geology, deep-buried and deep-long tunnels of the tunnel boring machine are simulated really, the test result can accurately reflect the performance of the bearings in actual use, comparison research on the same working condition or different working conditions of two sets of bearings with the same specification can be carried out simultaneously, evaluation and analysis can be carried out in the test process, early identification and early diagnosis of faults of the bearing to be tested are achieved, and the test period and cost are saved.
Drawings
Fig. 1 is a schematic front view of a slewing bearing loading test apparatus according to an embodiment of the present invention;
fig. 2 is a side sectional view of an embodiment of a slewing bearing loading test apparatus provided by the present invention.
The device comprises a first oil cylinder 1, a second oil cylinder 2, a third oil cylinder 3, a fourth oil cylinder 4, an annular loading frame 5, a supporting seat 6, an elastic cushion block 7, a variable frequency motor 8, a speed reducing mechanism 9, a torque and rotating speed measuring instrument 10, a heating device 11, a flange 12, a bearing to be measured 13 and an alignment bearing 14.
Detailed Description
The core of the utility model is to provide a slewing bearing loading test equipment, through being provided with two annular loading frames and supporting a plurality of loading devices, can develop the contrast research of two sets of bearings simultaneously to the operating condition of simulation tunnel tunnelling.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic front view of a slewing bearing load testing apparatus according to an embodiment of the present invention; fig. 2 is a side sectional view of an embodiment of a slewing bearing loading test apparatus provided by the present invention.
The utility model discloses embodiment provides a slewing bearing loading test equipment, including two annular loading frames 5 of relative setting, the equal level of axis and the coaxial arrangement of two annular loading frames 5, the vertical setting in plane in two annular loading frames 5 place promptly. Specifically, the upper portion of the outer edge of the annular loading frame 5 is semicircular, the lower portion of the outer edge of the annular loading frame 5 is rectangular, a circular hole is formed in the annular loading frame 5, and a bearing is placed in the circular hole during work. Two end faces opposite to the two annular loading frames 5 are inner sides, two end faces opposite to each other are outer sides, and after the two bearings are placed in the annular loading frames 5, two end faces opposite to each other are inner sides, and two end faces opposite to each other are outer sides.
Further, a first loading device is arranged between the two annular loading frames 5, each annular loading frame 5 is provided with a second loading device, a third loading device, a fourth loading device, a driving system and a temperature simulation device, the two bearings are respectively arranged in the annular loading frames 5, the first loading device is used for applying axial load to the inner side end face of the outer ring of the bearing, the second loading device is used for applying axial load to the outer side end face of the outer ring of the bearing, the third loading device is used for applying radial load to the outer circumferential face of the outer ring of the bearing, the fourth loading device is used for applying overturning moment to the lower portion of the bearing, the driving system is used for driving the inner ring of the bearing to rotate relative to the outer ring, and the temperature simulation device is used for heating the bearing.
In the working process, the two bearings are respectively a bearing 13 to be tested and a calibration bearing 14, the two bearings are respectively arranged in the two annular loading frames 5, loads in different directions are applied through the multiple loading devices, the temperature simulation devices heat the bearings, parameter data are obtained through the control system, the comprehensive load, high confining pressure and strong temperature rise environment borne by the bearings in the tunnel boring machine during excavation of unfavorable geology, deep burying and deep and long tunnels are simulated really, the test result can accurately reflect the performance of the bearings in actual use, comparison research on the same working condition or different working conditions of two sets of bearings with the same specification can be conducted simultaneously, evaluation and analysis can be conducted in the test process, early identification and early diagnosis of faults of the bearing to be tested are achieved, and the test period and cost are saved.
The utility model discloses among the slewing bearing loading test equipment that embodiment provided, each loading device can adopt hydraulic drive, also can adopt air pressure drive certainly, or the corresponding drive mechanism drive of motor cooperation, all is in the utility model discloses an within the protection scope. When hydraulic driving is adopted, the first loading device comprises a plurality of first oil cylinders 1 which extend axially, a plurality of hinged seats are correspondingly arranged on the end faces of the inner sides of the two annular loading frames 5, the two ends of each first oil cylinder 1 are respectively hinged with the end faces of the inner sides of the two annular loading frames 5, and meanwhile, the positions of the hinged seats are set, so that the plurality of first oil cylinders 1 are sequentially and uniformly distributed along the circumferential direction. Meanwhile, an annular baffle is arranged at the inner side end of the annular loading frame 5 and abuts against the inner side end of the bearing outer ring, in the test process, the first oil cylinder 1 extends out to generate axial thrust which is transmitted to the bearing to be tested 13 and the calibration bearing 14 through the annular baffle, and outward axial thrust is applied to the two bearing outer rings.
Further, the second loading device comprises a plurality of second oil cylinders 2 extending in the axial direction, the second oil cylinders 2 are arranged outside the bearing, one ends of the second oil cylinders 2 are connected with the annular loading frame 5, the other ends of the second oil cylinders 2 are abutted to the outer end face of the outer ring of the bearing, the second oil cylinders 2 are sequentially and uniformly distributed along the circumferential direction, and in the test process, the second oil cylinders 2 stretch out to generate axial force which directly acts on the outer end face of the outer ring of the bearing, so that inward axial thrust is applied to the outer ring of the bearing.
The third loading device comprises a plurality of radially extending third oil cylinders 3, one ends of the third oil cylinders 3 are hinged to the annular loading frames 5, the other ends of the third oil cylinders 3 are abutted to the outer peripheral surfaces of the outer rings of the bearings, a plurality of hinged seats are correspondingly arranged on the inner peripheral surfaces of the two annular loading frames 5, one ends of the third oil cylinders 3 are hinged to the two annular loading frames 5, and meanwhile, the third oil cylinders 3 are sequentially and uniformly arranged along the circumferential direction by setting the positions of the hinged seats. In the test process, the third oil cylinder 3 extends out to generate radial force and directly acts on the outer peripheral surface of the bearing outer ring, so that the radial load of the bearing and the high confining pressure of the deep-buried tunnel are simulated.
Specifically, according to the needs of the simulation, the three-cylinder simulation device comprises two rows of third cylinders 3 which are arranged in parallel inside and outside, namely, multiple rows of the third cylinders 3 can be arranged in the axial direction to adapt to bearings with different thicknesses, in order to ensure the stable connection of the third cylinders 3, an installation groove is formed in the inner periphery of the annular loading frame 5, and the third cylinders 3 are arranged in the installation groove.
The fourth loading device comprises a plurality of vertical fourth oil cylinders 4, the lower ends of the fourth oil cylinders 4 are fixed on the ground, the upper ends of the fourth oil cylinders 4 are hinged to the lower end face of the annular loading frame 5, avoidance grooves can be formed in four corners of the lower end face of the annular loading frame 5, the tops of the avoidance grooves are provided with hinged seats, and the fourth oil cylinders 4 are arranged in four corners of the lower end face of the annular loading frame 5 respectively and connected with the hinged seats. In the test process, the bearing to be tested 13 and the calibration bearing 14 are jacked up by adjusting the telescopic amount of the fourth oil cylinder 4, so that the bearing overturning moment is applied. The quantity and the arrangement mode of each hydro-cylinder also can be adjusted according to the circumstances, all are in the utility model discloses a within the scope of protection.
Preferably, the lower terminal surface middle part of annular loading frame 5 sets up the recess that the opening is decurrent, installs supporting seat 6 in the recess, is provided with elastic cushion 7 between supporting seat 6 and the recess, is wedge clearance fit with supporting seat 6, and is neat to the spacing supporting role to annular loading frame 5, and 6 lower extremes of supporting seat are fixed with the bottom surface.
The utility model discloses among the slewing bearing load test equipment that embodiment provided, actuating system includes interconnect's inverter motor 8 and reduction gears 9, inverter motor 8 rigidity, and inverter motor 8 connects reduction gears 9, and reduction gears 9's transport axle passes through the internal tooth of gear engagement bearing inner race, and simultaneously, inverter motor 8 is connected with moment of torsion rotational speed measuring apparatu 10 for real-time supervision inverter motor 8's moment of torsion and rotational speed. The plurality of driving systems are sequentially and uniformly arranged on the end face of the outer side of the annular loading frame 5 along the circumferential direction, the plurality of driving systems can be connected through a driving box, and the driving box is connected with the annular loading frame 5.
Further, the temperature simulation device comprises a heating device 11, a heating groove is formed in the inner circumferential surface of the annular loading frame 5, the heating device 11 is installed in the heating groove, the heating groove and the installation groove can be the same groove body, the structure is simplified, the heating groove and the installation groove can be respectively formed, the oil cylinder and the heating device are separated, and system safety is guaranteed. Specifically, the heating device 11 may be a heating wire or a heating furnace, and the heating device 11 is adjusted to simulate the temperature environment of the bearing in the deep and long tunnel environment, so as to study the influence on the bearing performance due to the change of the temperature condition of the bearing.
The torque, the rotating speed and the steering of the driving system are controlled by the control system, the loading force of the first loading device, the second loading device, the third loading device and the fourth loading device and the temperature of the temperature simulation device are accurately controlled, comprehensive environment simulation of the bearing to be tested 13 and the calibration bearing 14 under the same working condition or different working conditions is achieved, and experimental data are directly measured and output through various sensors and recorded in real time.
On the basis of the slewing bearing loading test equipment provided by each specific embodiment, a flange 12 is arranged between the two annular loading frames 5, and two ends of the flange 12 are respectively connected with two bearing inner rings, so that a synchronous rotation friction-eliminating rotating pair is realized.
It is right above the utility model provides a slewing bearing loading test equipment has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The utility model provides a slewing bearing loading test equipment, characterized in that, includes two annular loading frames (5) that the axis level and coaxial arrangement, two be provided with first loading device between annular loading frame (5), every all install second loading device, third loading device, fourth loading device, actuating system and temperature simulation device on annular loading frame (5), two bearings are installed respectively in annular loading frame (5), first loading device is used for applying axial load to the medial surface of bearing outer lane, second loading device is used for applying axial load to the lateral surface of bearing outer lane, third loading device is used for applying radial load to the outer peripheral face of bearing outer lane, fourth loading device is used for applying the overturning moment below the bearing, actuating system is used for driving the bearing inner lane and rotates for the outer lane, temperature simulation device is used for heating the bearing, still includes the control system who connects each device, is used for controlling the work of each device and measuring the data parameter of bearing.
2. The slewing bearing loading test equipment according to claim 1, wherein the first loading device comprises a plurality of axially extending first oil cylinders (1), two ends of each first oil cylinder (1) are respectively hinged to the inner side end faces of the two annular loading frames (5), and the first oil cylinders (1) are sequentially and uniformly distributed in the circumferential direction.
3. The slewing bearing loading test equipment according to claim 2, wherein the second loading device comprises a plurality of second oil cylinders (2) extending axially, one end of each second oil cylinder (2) is connected with the annular loading frame (5), the other end of each second oil cylinder (2) is abutted to the outer end face of the bearing outer ring, and the second oil cylinders (2) are sequentially and uniformly arranged along the circumferential direction.
4. The slewing bearing loading test equipment according to claim 3, wherein the third loading device comprises a plurality of radially extending third oil cylinders (3), one end of each third oil cylinder (3) is hinged to the annular loading frame (5), the other end of each third oil cylinder (3) abuts against the outer peripheral surface of the outer ring of the bearing, and the plurality of third oil cylinders (3) are sequentially and uniformly arranged along the circumferential direction.
5. The slewing bearing loading test equipment according to claim 4, comprising two rows of the third oil cylinders (3) which are arranged in parallel inside and outside, wherein an installation groove is formed in the inner periphery of the annular loading frame (5), and the third oil cylinders (3) are arranged in the installation groove.
6. The slewing bearing loading test equipment according to claim 5, wherein the fourth loading device comprises a plurality of vertical fourth oil cylinders (4), the lower ends of the fourth oil cylinders (4) are fixed, the upper ends of the fourth oil cylinders (4) are hinged to the lower end face of the annular loading frame (5), and the plurality of fourth oil cylinders (4) are respectively arranged at four corners of the lower end face of the annular loading frame (5).
7. The slewing bearing loading test equipment according to claim 6, wherein a groove with a downward opening is formed in the middle of the lower end face of the annular loading frame (5), a supporting seat (6) is installed in the groove, and an elastic cushion block (7) is arranged between the supporting seat (6) and the groove.
8. The slewing bearing loading test equipment of claim 1, wherein a driving system comprises a variable frequency motor (8) and a speed reducing mechanism (9) which are connected with each other, a conveying shaft of the speed reducing mechanism (9) is meshed with internal teeth of a bearing inner ring through a gear, the variable frequency motor (8) is connected with a torque and rotating speed measuring instrument (10), and a plurality of the driving systems are sequentially and uniformly arranged on the outer end face of the annular loading frame (5) along the circumferential direction.
9. The slew bearing loading test apparatus of claim 1 where the temperature simulator comprises a heater (11) mounted in a heating groove in the inner circumferential surface of the annular loading frame (5).
10. The slew bearing loading test apparatus of any one of claims 1 to 9, characterized in that a flange (12) is arranged between two annular loading frames (5), and two bearing inner rings are connected to both ends of the flange (12), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222599093.7U CN218098307U (en) | 2022-09-29 | 2022-09-29 | Slewing bearing loading test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222599093.7U CN218098307U (en) | 2022-09-29 | 2022-09-29 | Slewing bearing loading test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218098307U true CN218098307U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222599093.7U Active CN218098307U (en) | 2022-09-29 | 2022-09-29 | Slewing bearing loading test equipment |
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| Country | Link |
|---|---|
| CN (1) | CN218098307U (en) |
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2022
- 2022-09-29 CN CN202222599093.7U patent/CN218098307U/en active Active
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