CN219532488U - Universal testing machine for oversized bearing - Google Patents
Universal testing machine for oversized bearing Download PDFInfo
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- CN219532488U CN219532488U CN202320800616.1U CN202320800616U CN219532488U CN 219532488 U CN219532488 U CN 219532488U CN 202320800616 U CN202320800616 U CN 202320800616U CN 219532488 U CN219532488 U CN 219532488U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model belongs to the field of bearing testing, and particularly discloses a universal testing machine for an oversized bearing, which comprises a machine tool body which is horizontally arranged, wherein a second fixing piece of the machine tool body and a first fixing piece of the machine tool body are respectively and fixedly connected with the machine tool body, a workbench of the testing machine is rotationally connected with the machine tool body, a loading device is arranged at the bottom of the second fixing piece of the machine tool body, a load transmission device is fixedly connected with one end of a running part of the bearing to be tested through the workbench of the testing machine, the other end of the running part of the bearing to be tested is in transmission connection with a driving device through a pinion and a transmission system, a non-running part of the bearing to be tested is fixedly connected with the first fixing piece of the machine tool body, under the action of the transmission system, the running part of the bearing to be tested can drive the workbench of the testing machine tool to synchronously run, and load and overturning moment can be directly loaded on the workbench of the testing machine tool body to test the precision and service life, the condition of the bearing to be tested on the machine is fully simulated, and test data are more accurate and reliable.
Description
Technical Field
The utility model belongs to the field of bearing testing, and particularly discloses a universal testing machine for an oversized bearing.
Background
In recent years, with the rapid development of the domestic machine tool equipment manufacturing industry, the requirements for domestic replacement of important equipment are more and more strong, domestic assembly manufacturing companies put forward higher requirements on the precision, service life and rigidity of bearings, particularly bearings used by large or extra-large special equipment, so that the bearing companies put forward higher requirements on the aspect of testing extra-large high-precision long-service-life bearings, and bearing tests and tests are carried out by using various types of test equipment.
The conventional vertical bearing testing machine generally needs to use a test accompanying bearing as a support of the tested bearing, so that the test accompanying bearing C is arranged below the tested bearing and is used for assisting the operation of the tested bearing, the loading end is positioned above the tested bearing and is generally fixed, when the tested bearing outer ring 8 is driven by the bearing outer ring matched shell B and the test accompanying bearing matched mandrel D to operate, the test force can only be loaded from the tested bearing inner ring 9, otherwise, when the tested bearing inner ring 9 is driven by the bearing inner ring matched mandrel A to operate, the test force can only be loaded on the tested bearing outer ring 8 which is fixed and not moved, the layout mode of the testing machine is relatively large compared with the layout mode when the bearing is actually used, the bearing which is horizontally arranged and used is generally used for rotating a working table of a precision machining center or a workpiece shaft of a large vertical lathe and a precision grinder, when the machine is in operation, the pressure and the cover moment born by the rotating working table are transmitted to the bearing inner ring, the bearing inner ring and the outer ring are transmitted to the machine tool body through a rolling body, and a transmission system below the bearing inner ring and the working table are fixed together, otherwise, the test force can only be loaded on the tested bearing outer ring 8 is fixed, the bearing ring is different from the same type of the bearing ring, the test machine has the same type as the bearing ring, the test precision is different from the test precision, and the test precision is different from the test precision, and the test precision is suitable, and the test precision is different from the test precision.
Disclosure of Invention
In order to solve the problems in the background technology, the utility model discloses a universal testing machine for an oversized bearing, which comprises a testing machine workbench and a driving device, wherein a non-running part of the bearing to be tested is fixed, the driving device drives the running part of the bearing to be tested and the testing machine workbench to run synchronously, and a test load is directly loaded on the running workbench and is similar to the using working condition of the bearing, so that the testing purpose of the precision, the rigidity and the service life of the oversized bearing is achieved.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a general type testing machine to super-huge bearing, including the lathe bed that sets up horizontally, be equipped with lathe bed second mounting that upper and lower interval set up in proper order in the top of lathe bed, testing machine workstation and lathe bed first mounting, lathe bed second mounting and lathe bed first mounting respectively with lathe bed fixed connection, testing machine workstation and lathe bed rotate to be connected, be provided with loading device in lathe bed second mounting bottom, be provided with load transfer device in lathe bed second mounting's below and be used for transmitting the load, load transfer device passes through testing machine workstation and the one end fixed connection of bearing operation part that awaits measuring, the other end of bearing operation part that awaits measuring passes through pinion and transmission system and is connected with drive arrangement transmission, the bearing operation part that awaits measuring and lathe bed first mounting fixed connection, under transmission system's effect, the bearing operation part that awaits measuring can drive testing machine workstation synchronous operation, loading device can pass through load transfer device and testing machine workstation in proper order and apply axial, radially, the load is overturned to bearing operation part that awaits measuring.
Further, the load transfer device comprises a loading bearing group, the loading bearing group is sleeved on a bearing group matched mandrel, the upper end of the bearing group matched mandrel is connected with the second fixing piece of the lathe bed through the loading device, a bearing group matched shell is sleeved outside the loading bearing group, the bottom of the bearing group matched shell is fixedly connected with the top of the workbench of the testing machine, and the loading bearing group is fixedly connected with the bearing group matched mandrel and the bearing group matched shell.
Further, the transmission system of the universal testing machine for the oversized bearing is a belt or a gear set, one end of a pinion mandrel is in transmission connection with the output end of the servo motor through the belt or the gear set, the other end of the pinion mandrel is sleeved with a pinion, one end of a bearing running part to be tested is provided with a gear ring in meshed connection with the pinion, and the servo motor can drive the bearing running part to be tested to run through the pinion and the gear ring.
Further, the universal testing machine for the oversized bearing is characterized in that an oil receiving disc is arranged below the bearing to be tested and detachably connected with the machine tool body, and the oil receiving disc is used for recovering lubricating liquid in the bearing testing process.
Further, the loading device of the universal testing machine for the oversized bearing is a hydraulic cylinder or a servo motor.
Further, the universal testing machine for the oversized bearing is characterized in that the second fixing piece of the lathe bed and the first fixing piece of the lathe bed are cast or welded steel frames.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model relates to a universal testing machine for oversized bearings, which comprises a testing machine workbench, a loading device and a driving device, wherein a non-running part of a bearing to be tested is fixed on a machine tool body;
2. according to the universal testing machine for the oversized bearing, as the bearing to be tested is directly fixed on the machine tool without considering the bearing capacity of the bearing to be tested, the test load born by the bearing to be tested is borne by the machine tool body, and when the bearing group at the loading end above the workbench runs, the normal test of the bearing to be tested is not affected by a certain degree of abrasion and damage, and the universal testing machine is particularly suitable for testing the type of the oversized bearing;
3. according to the universal testing machine for the oversized bearing, the bearing with different specification diameters is met by changing the specifications of the supporting parts of the bearing, the requirements of different running states and different lubrication conditions of various types of bearings can be met by changing the transmission system and the lubrication system, destructive tests under the limit conditions of the bearing can be performed on the testing machine without affecting the performance of the testing machine, and the universal performance and the expansibility are very strong;
4. the utility model is aimed at the general testing machine of the oversized bearing, the loading end bearing group is easy to replace, the structural design can be carried out according to various loading requirements of different types of bearings under different testing conditions, for working conditions such as low-speed heavy load, medium-speed heavy load, high-speed light load and the like, the design schemes such as the combination of a thrust roller bearing and a radial roller bearing, the combination of a thrust ball bearing and an angular contact ball bearing, the combination of an angular contact ball bearing and the like can be selected, the functions of a bearing group shell and a mandrel can be exchanged, the mandrel and a workbench are fixed, various loads and moments are applied on the supporting shell of the loading end bearing group, and the accompanying bearing can be cancelled for testing when the limit bearing and rigidity are measured, so that the utility model can adapt to various loading requirements;
5. the utility model aims at the general testing machine of the oversized bearing, can meet the test of the bearings with different types, different specifications and different test requirements on the same test machine tool body by replacing the bearing matching parts, the transmission system accessories, the lubricating system accessories and the loading system accessories, does not need to purchase a special testing machine aiming at the bearings with different types and different working conditions, does not need to consider the performance requirements of the accompanying test bearings, reduces the difficulty and cost of bearing selection during design, can carry out special design on the loading end bearing group, can reduce the design and purchase cost of the bearing group, can greatly reduce the overall comprehensive cost and ensure the test requirements compared with the original structural bearing testing machine.
Drawings
FIG. 1 is a schematic diagram of a prior art bearing tester;
FIG. 2 is a schematic diagram of the operating state of the bearing tester of the present utility model;
FIG. 3 is a second schematic diagram of the operating state of the bearing tester of the present utility model;
in the above figures: 1-a machine tool body; 2-a first lathe bed fixing piece; 3-an oil pan; 4-a second lathe bed fixing piece; 5-pinion spindle; 6-transmission system; 7-a servo motor; 8-an outer ring; 9-an inner ring; 10-rolling elements; 11-a core shaft seat matched with the inner ring; 12-an inner ring gland; 13-an outer ring matched gear ring; 14-an outer ring gland; 15-a workbench of the testing machine; 16-a bearing set mating housing; 17-loading bearing set; 18-a mandrel matched with the bearing group; 19-pinion; 20-fastening a screw; 21-a drive gear set; 22-flanges; a-supporting mandrel of the bearing inner ring; b-a bearing outer ring matched shell; c-accompany test bearing; d-accompany test bearing matched core shaft.
Detailed Description
For a better understanding of the present utility model, the following examples are further illustrated, but are not limited to the following examples.
Referring to fig. 2 and 3, the universal testing machine for oversized bearings of the present utility model is described in detail, including a machine tool body 1 horizontally disposed, the machine tool body 1 is made of cast iron, horizontally disposed or fixed on the ground, a second fixing member 4, a testing machine table 15 and a first fixing member 2 are sequentially disposed above the machine tool body 1 at intervals, the second fixing member 4 and the first fixing member 2 are respectively fixedly connected with the machine tool body 1, the testing machine table 15 is rotationally connected with the machine tool body 1, a loading device is disposed at the bottom of the second fixing member 4, a load transmission device is disposed below the second fixing member 4 for transmitting load, the load transmission device is fixedly connected with one end of a bearing running member to be tested through the testing machine table 15, the other end of the bearing running member to be tested is in transmission connection with a driving device through a pinion 19 and a transmission system 6, the bearing running member to be tested is fixedly connected with the first fixing member 2, and under the action of the transmission system 6, the bearing running member to be tested can drive the testing machine table 15 to synchronously run, and the load transmission device can sequentially apply load to the bearing running member to be tested and the bearing running member to be tested by radial tilting member to be tested.
As an alternative design, the universal testing machine for oversized bearings is preferable, the load transmission device comprises a loading bearing group 17, the loading bearing group 17 is sleeved on a bearing group matched mandrel 18, the upper end of the bearing group matched mandrel 18 is connected with the second fixing piece 4 of the lathe bed through the loading device, a bearing group matched shell 16 is sleeved outside the loading bearing group 17, the bottom of the bearing group matched shell 16 is fixedly connected with the top of the workbench 15 of the testing machine, the loading bearing group 17 is fixedly connected with the bearing group matched mandrel 18 and the bearing group matched shell 16, the loading device is preferably a hydraulic cylinder or a servo motor, the action of the hydraulic cylinder or the servo motor is controlled through adjusting a hydraulic or frequency converter, the whole mechanism is provided with pressure or tension, forces with different directions and different magnitudes are applied to the supporting mandrel 18 of the bearing group, the forces are transmitted to the supporting shell 16 of the bearing group through the loading bearing group 17 and are downwards conducted, the test machine workbench 15 runs and bears the load, the tested bearing bears the load while following the test machine workbench 15 to run, the pressure of the loading device is consistent with the working condition of a machine tool, the loading device can be accurately regulated, the loading device is arranged at different positions and in different directions, the load and the moment required by the test are accurately simulated, the test condition is achieved, in addition, the test machine can adapt to different rotating speeds and loading requirements by changing the structure and the form of the loading bearing group: the angular contact ball bearing group with proper specification can meet the requirements of testing the rotation speed and the service life of medium and low bearing high rotation speed, and is replaced by the radial cylindrical roller bearing and thrust cylindrical roller bearing group with strong bearing capacity and low rotation speed, so that the requirements of rigidity test and service life test of large bearing low rotation speed can be met; the bearing group is canceled, and the axial pressure is directly loaded on the workbench of the testing machine, so that the testing requirements of the static axial rigidity, the radial rigidity and the overturning rigidity of the tested bearing can be met.
As an alternative design, preferably, the universal testing machine for extra-large bearings is characterized in that the transmission system 6 is a belt or a gear set, one end of the pinion mandrel 5 is in transmission connection with the output end of the servo motor 7 through the belt or the gear set, the other end of the pinion mandrel 5 is sleeved with a pinion 19, one end of a bearing operation part to be tested is provided with a gear ring in meshed connection with the pinion 19, the servo motor 7 can drive the bearing operation part to be tested to operate through the pinion 19 and the gear ring, the rotating torque of the servo motor 7 is transmitted to the pinion 19 and the pinion mandrel 5, the pinion 19 is meshed with the gear ring arranged at one end of the bearing operation part to be tested, the rotating torque is transmitted to the bearing operation part to be tested, the requirements of different operation speeds of the bearing to be tested are realized by adjusting the rotating speed of the servo motor 7 and the transmission ratio of the transmission system 6, and the testing machine can adapt to different rotating speeds and torque requirements through changing motors and transmission modes, for example: the parallel multi-stage gear transmission is used for meeting the requirements of low rotation speed and high torque, and the motor belt transmission is replaced for meeting the test requirements of low torque and high rotation speed.
As an alternative design, preferably, the universal testing machine for extra-large bearings is provided with an oil receiving disc 3 below the bearing to be tested, the oil receiving disc 3 is used for recovering lubricating liquid in the bearing testing process, lubricating oil loss or pollution is prevented, and the oil receiving disc 3 is fixed on the machine tool body 1 through screws and can be adjusted and replaced according to requirements.
As an alternative design, the universal tester for very large bearings is preferably one in which the second bed mount 4 and the first bed mount 2 are cast or welded steel frames.
The working process of the utility model is as follows:
as shown in figure 2, the bearing to be tested is a crossed roller turntable bearing, unlike a deep groove ball bearing and a thrust roller bearing, the bearing can bear various loads such as axial, radial, overturning loads and the like, the crossed roller turntable bearing comprises an outer ring 8, an inner ring 9 and crossed cylindrical roller rolling bodies 10, the inner ring or the outer ring of the bearing can be of a split structure, the rolling bodies are convenient to be installed, an inner ring matched core shaft seat 11 and an inner ring gland 12 are arranged on the inner ring 9, the inner ring 9 is matched with the inner ring matched core shaft seat 11 and the inner ring gland 12 and fastened and fixed by fastening screws 20, the inner ring matched core shaft seat 11 is fixedly connected with a lathe bed first fixing piece 2, an outer ring matched ring gear 13 and an outer ring gland 14 are arranged on the outer ring 8, the outer ring 8 is matched with the outer ring matched ring gear 13 and the outer ring gland 14 and fastened and fixed by fastening screws 20, the upper end of the outer ring matched gear ring 13 is fixedly connected with the bottom of the workbench 15 of the testing machine, the gear ring pinion 19 on the outer circular surface of the outer ring matched gear ring 13 is meshed and connected, the servo motor 7 drives the outer ring 8 of the tested bearing to operate sequentially through the transmission system 6, the pinion 19 and the outer ring matched gear ring 13, the rotating torque of the servo motor 7 is transmitted to the outer ring 8 of the tested bearing, the requirements of different operating speeds of the tested bearing are realized by adjusting the rotating speed of the servo motor 7 and the transmission ratio of the transmission system 6, the force with different directions and different magnitudes is applied to the matched mandrel 18 of the bearing group through the action of the hydraulic cylinder or the servo motor at the loading end, the force is transmitted to the matched shell 16 of the bearing group through the loading bearing group 17 and transmitted to the outer ring 8 of the tested bearing through the workbench 15 and the outer ring matched gear ring 13, the inner ring 9 of the tested bearing is a non-operating part, the inner ring 9 of the tested bearing is fixed, the outer ring 8 is an operating part, and the outer ring 8 rotates and bears load under the action of external force, so that the test requirement is met;
as shown in fig. 3, the bearing to be tested is a turntable bearing, also called a three-row cylindrical roller combined bearing, the inner ring 9 of the bearing to be tested comprises an L-shaped inner ring and a circular ring inner ring, the rolling body 10 of the bearing to be tested comprises two groups of thrust cylindrical roller bearings and a group of radial cylindrical roller bearings, the outer ring 8 of the bearing to be tested is fixedly connected with the first fixing piece 2 of the lathe bed, the inner ring 9 of the bearing to be tested is matched with the inner ring matched mandrel seat 11 and the inner ring gland 12, the fastening screw 20 is used for fastening and fixing, the top of the inner ring matched mandrel seat 11 is fixedly connected with the workbench 15 of the testing machine through a flange 22, the inner ring gland 12 matched with the inner ring 9 is provided with a gear ring meshed with a transmission gear set 21, the transmission gear set 21 is meshed with a pinion 19, the transmission gear set 21 is additionally arranged to adjust the layout to increase the transmission assembly, the servo motor 7 sequentially drives the inner ring 9 of the bearing to be tested through the transmission system 6, the pinion 19, the transmission gear set 21 and the inner ring gland 12, the rotating torque of the servo motor 7 is transmitted to the inner ring 9 of the tested bearing, the requirements of different running speeds of the tested bearing are realized by adjusting the rotating speed of the servo motor 7 and the transmission ratio of the transmission system 6, the forces with different directions and different magnitudes are applied to the matched mandrel 18 of the bearing group by the action of the hydraulic cylinder or the servo motor at the loading end, the forces are transmitted to the matched shell 16 of the bearing group by the loaded bearing group 17 and transmitted downwards, the forces are transmitted to the inner ring 9 of the tested bearing by the workbench 15 of the testing machine, the flange 22 and the matched mandrel seat 11 of the inner ring, and then transmitted to the rolling body 10, the outer ring 8 of the tested bearing, the first fixing piece 2 of the lathe bed 1 and the non-running part of the outer ring 8 of the tested bearing are fixed, the inner ring 9 is the running part, the inner ring 9 rotates under the action of external force and bears the load, the test requirement is met;
the same machine tool body of the testing machine and the same transmission system and lubrication system are used in the figures 3 and 2, according to the inconsistent types of the tested bearings, the fixed parts of the machine tool body for fixing the bearing shafting are replaced, the transmission parts are increased or decreased, the testing requirements of the two types of bearings are met, the inner ring matched spindle seat 11, the inner ring gland 12, the outer ring matched gear ring 13, the outer ring gland 14, the flange 22 and related accessories of the parts are changed, and the testing requirements of the bearings with different specifications are met to a certain extent;
according to the utility model, the accompanying test bearing is canceled for the universal testing machine of the oversized bearing, the design of the testing machine is carried out by referring to the layout scheme of the machine tool, the real use working condition of the oversized bearing is simulated to the greatest extent, the testing purpose and the requirements are achieved, the requirements of the accompanying test bearing are greatly reduced, the layout of a transmission system and a lubricating system is not influenced, the tests of various types, various specifications and various limit working conditions can be realized by replacing parts, the universal testing machine is particularly suitable for the simulation test of the oversized bearing, the comprehensive cost of the test is greatly reduced, the testing efficiency is improved, and the testing requirements of various types of oversized bearings are met.
The above description is only an application embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and the scope of the claims should not be limited thereto, and any equivalent changes according to the technical solution of the present utility model should be covered in the protection scope of the present utility model.
Claims (6)
1. A universal testing machine for oversized bearings is characterized in that: the test machine comprises a machine tool body which is horizontally arranged, a second lathe bed fixing part, a test machine workbench and a first lathe bed fixing part which are arranged at intervals up and down are sequentially arranged above the machine tool body, the second lathe bed fixing part and the first lathe bed fixing part are respectively and fixedly connected with the machine tool body, the test machine workbench is rotationally connected with the machine tool body, a loading device is arranged at the bottom of the second lathe bed fixing part, a load transmission device is arranged below the second lathe bed fixing part and used for transmitting load, the load transmission device is fixedly connected with one end of a bearing operation part to be tested through the test machine workbench, the other end of the bearing operation part to be tested is in transmission connection with a driving device through a pinion and a transmission system, the bearing operation part to be tested is fixedly connected with the first lathe bed fixing part, under the action of the transmission system, the bearing operation part to be tested can drive the test machine workbench to synchronously operate, and the loading device can sequentially apply axial, radial and overturning loads to the bearing operation part to be tested.
2. The universal testing machine for oversized bearings of claim 1, wherein: the load transfer device comprises a loading bearing group, the loading bearing group is sleeved on a bearing group matched mandrel, the upper end of the bearing group matched mandrel is connected with the second fixing piece of the lathe bed through the loading device, a bearing group matched shell is sleeved outside the loading bearing group, the bottom of the bearing group matched shell is fixedly connected with the top of the workbench of the testing machine, and the loading bearing group is fixedly connected with the bearing group matched mandrel and the bearing group matched shell.
3. The universal testing machine for oversized bearings of claim 1, wherein: the transmission system is a belt or a gear set, one end of the pinion mandrel is in transmission connection with the output end of the servo motor through the belt or the gear set, the other end of the pinion mandrel is sleeved with a pinion, one end of the bearing running component to be tested is provided with a gear ring in meshed connection with the pinion, and the servo motor can drive the bearing running component to be tested to run through the pinion and the gear ring.
4. A universal testing machine for oversized bearings according to claim 2 or 3, characterized in that: an oil receiving disc is arranged below the bearing to be tested, the oil receiving disc is detachably connected with the machine tool body, and the oil receiving disc is used for recycling lubricating liquid in the bearing testing process.
5. The universal testing machine for oversized bearings of claim 4, wherein: the loading device is a hydraulic cylinder or a servo motor.
6. The universal testing machine for oversized bearings of claim 4, wherein: the second lathe bed fixing piece and the first lathe bed fixing piece are cast or welded steel frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320800616.1U CN219532488U (en) | 2023-04-12 | 2023-04-12 | Universal testing machine for oversized bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320800616.1U CN219532488U (en) | 2023-04-12 | 2023-04-12 | Universal testing machine for oversized bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219532488U true CN219532488U (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320800616.1U Active CN219532488U (en) | 2023-04-12 | 2023-04-12 | Universal testing machine for oversized bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219532488U (en) |
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2023
- 2023-04-12 CN CN202320800616.1U patent/CN219532488U/en active Active
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