CN201555707U - A large bearing testing machine - Google Patents
A large bearing testing machine Download PDFInfo
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- CN201555707U CN201555707U CN2009203113275U CN200920311327U CN201555707U CN 201555707 U CN201555707 U CN 201555707U CN 2009203113275 U CN2009203113275 U CN 2009203113275U CN 200920311327 U CN200920311327 U CN 200920311327U CN 201555707 U CN201555707 U CN 201555707U
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Abstract
本实用新型属于轴承试验技术领域，特别是一种大型轴承试验机。该大型轴承试验机，其特点是：由试验单元、加载单元、驱动单元、控制单元、液压动力单元和工作台组成。加载单元、驱动单元和控制单元安装在工作台上，试验单元设置在加载单元上，液压动力单元放置在工作台的后面，与加载单元相连，控制单元分别与试验单元、加载单元、驱动单元、液压动力单元相匹配。试验单元安装试验的大型轴承，加载单元对试验轴承施加径向载荷、轴向载荷和倾覆力矩，驱动单元以规定的转速和转矩驱动试验轴承旋转，控制单元控制电气操作和保护、监控试验运行、分析试验过程与结果并进行适时反馈。
The utility model belongs to the technical field of bearing testing, in particular to a large bearing testing machine. The characteristic of this large-scale bearing testing machine is that it is composed of a test unit, a loading unit, a drive unit, a control unit, a hydraulic power unit and a workbench. The loading unit, drive unit and control unit are installed on the workbench, the test unit is set on the load unit, the hydraulic power unit is placed behind the workbench and connected with the load unit, and the control unit is respectively connected with the test unit, load unit, drive unit, The hydraulic power unit matches. The test unit installs the large bearing for the test, the loading unit applies radial load, axial load and overturning moment to the test bearing, the drive unit drives the test bearing to rotate at a specified speed and torque, the control unit controls the electrical operation and protection, and monitors the test operation , Analyze the test process and results and give timely feedback.
Description
Technical field
The utility model belongs to the bearing test technical field, particularly a kind of large bearing testing machine.
Background technology
In industry extensive application such as wind-power electricity generation, rolling stock, metallurgical mine, petroleum machinery, engineering machinery, therefore work under bad environment requires to have high precision, long-life and high reliability to external diameter at the large size bearing of Φ 400mm～1000mm.The fatigue lifetime of bearing and reliability thereof are the most important performance index of bearing, but because influence the theoretical still need of the too many and bearing fatigue life of factor fatigue lifetime perfect, carrying out durability test is present only effective way.Bearing frictional torque also is the Key Performance Indicator of bearing, and many working condition requirements are tested performance index such as the maximum friction moment of bearing, average friction moments.Large bearing testing machine is the key equipment that large size bearing is carried out durability test and performance test, but, large bearing testing machine quantity is few at present, and volume is big, cost is high, function is comparatively single, can not satisfy people to the more and more stricter testing requirements of large size bearing.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of reasonable in design, not only can carry out durability test but also can make a service test, saves the space, structural rigidity is good.
It is this large bearing testing machine that the utility model solves the problems of the technologies described above the technical scheme that is adopted, and its design feature is: be made up of test unit, loading unit, driver element, control module, hydraulic power unit and worktable.Loading unit, driver element and control module are installed on the worktable, test unit is arranged on the loading unit, hydraulic power unit is placed on the back of worktable, links to each other with loading unit, and control module is complementary with test unit, loading unit, driver element, hydraulic power unit respectively.The large size bearing of test unit installation test; loading unit applies radial load, axial load and upsetting moment to test bearing; driver element is with the rotating speed and the rotation of torque actuated test bearing of regulation, and control module control electric operation and protection, monitoring test operation, analytical test process and result also feed back in good time.
Test unit described in the utility model is made up of test main shaft, axial force transducer, upper support seat, lower support seat, left spring bearing, right spring bearing and supporting body, the lower support seat is fixed on the worktable, the upper support seat is fixed on the lower support seat, test bearing is contained in the supporting body, supporting body is sleeved on the middle part of test main shaft, the test main shaft is installed in upper support seat and the lower support seat by the left spring bearing and the right spring bearing at two ends, one end of test main shaft connects driver element, and the other end is connected with axial force transducer.The supporting body profile is short eight prism-shaped, endoporus installation test bearing, outside surface sensor installation.
Supporting body profile described in the utility model is short eight prism-shaped.
Loading unit described in the utility model is made up of radial loaded assembly and three axial charging assemblies, and the radial loaded assembly is made up of radial loaded cylinder block, piston, cylinder cap, radial force sensor; Three axial charging assemblies are that the center is 120 ° of evenly distributions with the test spindle centerline, each axial charging assembly is made up of axial load cylinder cylinder body, axial piston, cylinder cap, push rod, loading head, the radial loaded cylinder block is fixed on the end face middle part of upper support seat, axially the load cylinder cylinder body is fixed on the side of upper support seat, lower support seat, and the load cylinder cylinder body is connected with hydraulic power unit.
Driver element described in the utility model is made up of alternating current generator, tachogenerator, torque sensor, shaft coupling knot, gimbal coupling, motor base, alternating current generator links to each other with the test main shaft by tachogenerator, torque sensor, shaft coupling knot, gimbal coupling, alternating current generator is fixed on the worktable by motor base, and motor base and worktable are provided with the adjusting leading screw.Alternating current generator provides power for the test main shaft, and torque and speed by torque sensor measurement and tachogenerator experiment with measuring are transferred to control module with torque and rotary speed data.The axial location of motor base is regulated by regulating leading screw.
The design proposal of described large bearing testing machine mainly comprises following content:
1) design of test spindle unit and charger is on support frame, and the support frame design is cutting plane at an end of worktable with the surface level by the test spindle centerline, and support frame is designed to split type structure, is made of upper support seat and lower support seat;
2) the test spindle unit is designed to simple beam structure, and the spring bearing at test main shaft two ends forms two bearings of free beam, and the test bearing design is at the middle part of test main shaft;
3) test bearing connects with charger by supporting body, and the cross sectional shape of supporting body is designed to octagon;
4) charger is designed to separate radial loaded assembly and axial charging assembly, radial loaded assembly and test bearing vertical and intersectant centerline, and axially charging assembly is designed to three equally distributed axial oil cylinders of circumference;
5) the drive unit design drives alternating current generator by big-power transducer, by gimbal coupling motoring ring test spindle operation at the other end of worktable;
6) testing element comprises radial force sensor, axial force transducer, tachogenerator and torque sensor, can test radial load, axial load, test speed and torque;
7) the proportional reduction valve of design of Hydraulic System is realized accurately loading;
8) Control System Design is a computer control system, can realize carrying out automatically of test according to loading spectrum and rotating speed spectrum, and test findings can be shown and print.
The utility model is compared with prior art and is had the following advantages and effect:
1) adopt support frame structure installation test main shaft and load cylinder, structural rigidity is good, the saving space;
2) the test main shaft adopts simple beam structure, and test bearing is installed in the middle part of test main shaft, and topology layout is reasonable, and load-bearing capacity is strong, and the spring bearing life-span is long;
3) the test bearing supporting body adopts short eight prism structures, and the radial loaded position is accurate, and temperature sensor, vibration transducer are arranged easy;
4) under the load condition identical with speed, utilize torque sensor can compare two moment of frictions of overlapping the same model bearings, differentiate the quality of bearing;
5) radial loaded and axial the loading are respectively arranged, and be separate, mutually noninterfere;
6) regulate the radial loaded position, perhaps change the balance that axially loads, anti-bias load ability that can test bearing;
7) be particularly suitable for durability test and the performance test of external diameter at Φ 400mm～1000mm large size bearing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model test unit;
Fig. 3 is the structural representation of the utility model loading unit;
Fig. 4 is the utility model structure of driving unit synoptic diagram.
Among the above-mentioned figure: the 1-test unit; The 2-loading unit; The axial charging assembly of 2-1; 2-2 radial loaded assembly; The 3-driver element; The 4-control module; The 5-hydraulic power unit; The 6-worktable; 7-lower support seat; 8-upper support seat; 9-tests main shaft; The 10-test bearing; The 11-supporting body; 12-left side spring bearing; The right spring bearing of 12-1-; The 13-axial force transducer; 14-radial loaded cylinder block; The 15-piston; The 16-oil cylinder cover; The 17-sensor; The axial load cylinder cylinder body of 18-; The 19-axial piston; The 20-cylinder cap; The 21-push rod; The 22-loading head; The 23-alternating current generator; The 24-tachogenerator; The 25-torque sensor; 26-shaft coupling knot; The 27-gimbal coupling; The 28-motor base; 29-regulates leading screw; The 30-sensor base.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail, following examples are to explanation of the present utility model and the utility model is not limited to following examples.
As shown in Figure 1, the large size bearing multifunctional test machine is made up of test unit 1, loading unit 2, driver element 3, control module 4, hydraulic power unit 5 and worktable 6.Test unit 1, loading unit 2, driver element 3 and control module 4 are installed on the worktable 6, and hydraulic power unit 5 is placed on the back of worktable 6, link to each other with loading unit 2.The large size bearing of test unit 1 installation test; 2 pairs of test bearings of loading unit apply radial load, axial load and upsetting moment; driver element 3 is with the rotating speed and the rotation of torque actuated test bearing of regulation, and control module 4 control electric operations and protection, monitoring test operation, analytical test process and result also feed back in good time.
As shown in Figure 2, large size bearing multifunctional test machine, its test unit 1 comprise test main shaft 9, lower support seat 7, upper support seat 8, left spring bearing 12, right spring bearing 12-1, supporting body 11.Test bearing 10 is contained in the endoporus of supporting body 11, be sleeved on the middle part of test main shaft 9 together, test main shaft 9 is installed in lower support seat 7, the upper support seat 8 by the left spring bearing 12 at two ends, right spring bearing 12-1, wherein an end is a stiff end, the other end is a free end, the stiff end of test main shaft 1 connects driver element 3, and free end is installed axial force transducer 13.Supporting body 11 profiles are short eight prism-shaped, endoporus installation test bearing 10, and outside surface sensor installation 17, sensor 17 comprise radial force sensor, temperature sensor and vibration transducer.Lower support seat 7 is fixed on the worktable 6, and upper support seat 8 is fixed on lower support seat 7.
As shown in Figure 3, large size bearing multifunctional test machine, its loading unit 2 comprise radial loaded assembly 2-2 and three axial charging assembly 2-1.Radial loaded assembly 2-2 comprises radial loaded cylinder block 14, piston 15, cylinder cap 16, sensor 17; Three axial charging assembly 2-1 are that the center is 120 ° of evenly distributions with test main shaft 9 center lines, comprise axial load cylinder cylinder body 18, axial piston 19, cylinder cap 20, push rod 21, loading head 22.Radial loaded cylinder block 14 is fixed on the upper support seat 8 the end face middle part, and axially load cylinder cylinder body 18 is fixed on the lower support seat 7, upper support seat 8 sides of test main shaft 9 stiff ends.Radial loaded cylinder block 14 is connected with hydraulic power unit 5 respectively with axial load cylinder cylinder body 18.
As shown in Figure 4, large size bearing multifunctional test machine, its driver element 3 comprise alternating current generator 23, tachogenerator 24, torque sensor 25, shaft coupling knot 26, gimbal coupling 27, motor base 28.Alternating current generator 23 links to each other with the stiff end of test main shaft 9 by tachogenerator 24, torque sensor 25, shaft coupling knot 26, gimbal coupling 27, for test main shaft 9 provides power, torque and speed by torque sensor measurement 25 and tachogenerator 24 experiment with measuring are transferred to control module 4 with torque and rotary speed data.Motor is fixed on the worktable 6 by motor base 28, and the axial location of motor base 28 is regulated by regulating leading screw 29.
The adjustment and the use of large bearing testing machine of the present utility model are as follows:
Before utilizing this bearing tester that large size bearing is tested, at first need upper support seat 8 is sling, bearing 10 and supporting body 11 that needs are tested are installed on the test main shaft 9, again upper support seat 8 and lower support seat 7 are fixed, regulate radial loaded assembly 2-2 and the loading position of three axial charging assembly 2-1 on supporting body 11 simultaneously, check sensor 17 and axial force transducer 13; To test main shaft 9 then and connect, adjust tachogenerator 24 and torque sensor 25 with gimbal coupling 27; Loading unit 2 and hydraulic power unit 5 are connected the top hole pressure of regulating system pressure and proportional pressure-reducing valve; According to loading spectrum and velocity spectrum, regulate each test parameters of control module 4.
When utilizing this bearing tester that large size bearing is tested, by control module 4 monitoring tests operations, analytical test process and result and feed back in good time, and then test bearing 10 is carried out durability test and performance test.
Utilize this testing machine, can carry out ordinary life test, bearing life strenuous test, can compare test, can also load upsetting moment bearing is tested bearing frictional torque to large size bearing.
In addition, need to prove, the specific embodiment described in this instructions, its zero, the shape of parts, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done, be included in the protection domain of the utility model patent according to the utility model patent.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount the defined scope of these claims, all should belong to protection domain of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203113275U CN201555707U (en) | 2009-09-24 | 2009-09-24 | A large bearing testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203113275U CN201555707U (en) | 2009-09-24 | 2009-09-24 | A large bearing testing machine |
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| CN201555707U true CN201555707U (en) | 2010-08-18 |
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| CN2009203113275U Expired - Fee Related CN201555707U (en) | 2009-09-24 | 2009-09-24 | A large bearing testing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288410A (en) * | 2011-07-11 | 2011-12-21 | 大连理工大学 | Large-scale bearing test table having hydrostatic loading closed structure |
| CN102527743A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Online real-time torque detection and control system for self-lubricating spherical plain bearings and method thereof |
| CN115508091A (en) * | 2022-11-07 | 2022-12-23 | 烟台天成机械有限公司 | Wind generating set main shaft, driftage, change oar bearing capability test platform |
-
2009
- 2009-09-24 CN CN2009203113275U patent/CN201555707U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288410A (en) * | 2011-07-11 | 2011-12-21 | 大连理工大学 | Large-scale bearing test table having hydrostatic loading closed structure |
| CN102288410B (en) * | 2011-07-11 | 2012-12-26 | 大连理工大学 | Large-scale bearing test table having hydrostatic loading closed structure |
| CN102527743A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Online real-time torque detection and control system for self-lubricating spherical plain bearings and method thereof |
| CN102527743B (en) * | 2011-12-30 | 2014-12-10 | 上海市轴承技术研究所 | Online real-time torque detection and control system for self-lubricating spherical plain bearings and method thereof |
| CN115508091A (en) * | 2022-11-07 | 2022-12-23 | 烟台天成机械有限公司 | Wind generating set main shaft, driftage, change oar bearing capability test platform |
| CN115508091B (en) * | 2022-11-07 | 2023-03-10 | 烟台天成机械有限公司 | Wind generating set main shaft, driftage, change oar bearing capability test platform |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Gongshu District Hangzhou City, Zhejiang Province Road 310015 No. 208 Patentee after: Tianma Bearing Group Co., Ltd. Address before: 310022 Zhejiang Province, Hangzhou City Road No. 208 Patentee before: Zhejiang TianMa Bearing Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20150924 |
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| EXPY | Termination of patent right or utility model |