CN110095265B - Torsion arm assembly fatigue test device - Google Patents
Torsion arm assembly fatigue test device Download PDFInfo
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- CN110095265B CN110095265B CN201810080396.3A CN201810080396A CN110095265B CN 110095265 B CN110095265 B CN 110095265B CN 201810080396 A CN201810080396 A CN 201810080396A CN 110095265 B CN110095265 B CN 110095265B
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- fixedly connected
- torsion arm
- sleeved
- bearing piece
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a torque arm assembly fatigue test device, which comprises an experiment platform, an actuator and a base station on the experiment platform, wherein the tail end of an output shaft of the actuator is sleeved with a sleeve rod, the top of the sleeve rod is fixedly connected with a first bolt column, the first bolt is sleeved with a first bearing piece and then is connected with a nut in a threaded manner, the bottom of the sleeve rod is fixedly welded with a second bearing piece, a constraint rod is arranged between the first bearing piece and the second bearing piece in a penetrating manner, the upper end and the lower end of the constraint rod are respectively and fixedly connected with a group of second bolt columns, the two groups of second bolt columns respectively penetrate through the first bearing piece and the second bearing piece and then are connected with a second nut in a threaded manner, the constraint rod is sleeved with fixing holes at the two sides of a torque arm, and the base station is sleeved with a central hole of the torque arm, the invention can truly simulate the structure and the load characteristics of the torque arm on a wind, the structure is simple, the occupied area is small, and the result is more accurate and reliable.
Description
Technical Field
The invention relates to the technical field of torque arms of gear boxes, in particular to a torque arm assembly fatigue test device.
Background
The torsion arm on the wind driven generator is used for fixing a part of the gear box and is used for balancing the torque transmitted from the main shaft to the gear box, so that the stress condition of the gear box is more stable and reasonable. In order to ensure good performance and use reliability, the fatigue test examination should be carried out by simulating the load and the structural characteristics of the steel, and a basis is provided for determining the service life of the steel. In view of this, the invention provides a torsion arm assembly fatigue test device.
Disclosure of Invention
The invention aims to provide a torsion arm assembly fatigue test device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a fatigue test device for a torque arm assembly comprises an experiment platform, an actuator and a base station on the experiment platform, wherein the top of the experiment platform is fixedly connected with a flange base, the flange base is connected with the actuator through a flange, the tail end of an output shaft of the actuator is sleeved with a loop bar, the top of the loop bar is fixedly connected with a first bolt column, the first bolt is sleeved with a first receiving piece and then is in threaded connection with a nut, the bottom of the loop bar is fixedly welded with a second receiving piece, a constraint rod penetrates through the first receiving piece and the second receiving piece, the upper end and the lower end of the constraint rod are respectively and fixedly connected with a group of second bolt columns, two groups of second bolt columns respectively penetrate through the first receiving piece and the second receiving piece and then are in threaded connection with a second nut, and the constraint rod is sleeved with fixing holes on two sides of the torque arm;
the upper surface of the experiment platform is connected with a base through bolts, the base is fixedly connected with a base platform, the base platform is sleeved with a central hole of the torsion arm, a first bearing is fixedly connected at the center of the top of the base platform, the first bearing is in interference fit with a rotating shaft, the top end of the rotating shaft is fixedly connected with a round wheel rim hand wheel, a cylindrical cavity is arranged inside the base platform, the bottom end of the cylindrical cavity is fixedly connected with a second bearing, the second bearing is in interference fit with the rotating shaft, a plurality of groups of through holes are arranged between the cylindrical cavity and the base platform, the through holes are in sliding fit with positioning pins, the tail ends of the positioning pins are fixedly connected with one ends of springs, the other ends of the springs are fixedly connected with limit blocks, the limit blocks are embedded into the through holes and are fixedly connected with the inner walls of the, the rigid rope penetrates through the small hole and is fixedly connected with a pull ring, and the pull ring is fixedly connected with the side wall of the rotating shaft.
Preferably, the upper surface fixed connection of experiment platform is two sets of electric slide rail of parallel arrangement, the bottom plane of the last slider fixed connection safety cover of electric slide rail, the safety cover adopts curved transparent material.
Preferably, two groups of constraint plates are sleeved on an output shaft of the actuator, the constraint plates are arc-shaped and matched with the side walls of the loop bar, the constraint plates abut against the loop bar, fastening bolts are in threaded connection with the side walls around the two groups of constraint plates, and the fastening bolts penetrate through the constraint plates and abut against the output shaft of the actuator.
Preferably, the actuators are provided in two sets and are symmetrically installed about a longitudinal center axis of the base.
Preferably, the second bolt column is a half-threaded bolt, and a screw section of the second bolt column is in sliding fit with the first adapter and the second adapter.
Preferably, the locating pin is equipped with and is four groups of equidistant longitudinal arrangement, includes four locating pins in each group, and about the symmetry axis of base station is the hoop evenly distributed.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the torsion arm components are respectively placed on the base station and the restraint rod, so that the structure and load characteristics of the torsion arm on the wind driven generator can be truly simulated, the structure is simple, the occupied area is small, and the result is more accurate and reliable;
2. according to the invention, two groups of electric sliding rails are arranged on the experiment platform, and the electric sliding rails drive the protective cover to move, so that a tester can be effectively protected, and the condition that a torsion arm flies out to injure the tester due to faults in the fatigue test process of the torsion arm assembly is prevented;
3. according to the invention, the two groups of restraining plates are sleeved on the output shaft of the actuator, and the loop bar can be effectively fixed on the output shaft of the actuator through the limiting and clamping actions of the two groups of restraining plates, so that the operation is simple, rapid and convenient;
4. according to the invention, a plurality of groups of positioning pins are arranged on the base platform, one part of the positioning pins extends out of the base platform to limit the central hole of the torsion arm on the base platform, and the other part of the positioning pins abuts against the hole wall of the central hole of the torsion arm, so that the torsion arm is prevented from loosening longitudinally and transversely in the fatigue test process, and the accuracy of the measurement result is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is an assembly view of the loop bar, the first and second adapters and the restraint bar of the present invention;
FIG. 4 is a schematic view of a base structure according to the present invention;
fig. 5 is an enlarged schematic view of a portion B in fig. 4.
In the figure: the device comprises a test platform 1, an actuator 2, a base 3, a base 4, a flange seat 5, a sleeve rod 6, a first bolt column 7, a first bearing 8, a nut 9, a second bearing 10, a constraint rod 11, a second bolt column 12, a first bearing 13, a rotating shaft 14, a wheel with a round rim 15, a cylindrical cavity 16, a second bearing 17, a through hole 18, a positioning pin 19, a spring 20, a limiting block 21, a rigid rope 22, a pull ring 23, an electric slide rail 24, a protective cover 25, a constraint plate 26, a fastening bolt 27 and a torsion arm 28.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a torsion arm assembly fatigue test device comprises an experiment platform 1, an actuator 2 and a base station 3 on the experiment platform. The top fixed connection flange seat 5 of test platform 1, 5 flange joint actuators 2 of flange seat, the loop bar 6 has been cup jointed to the end of actuator 2's output shaft, the first bolt post 7 of top fixed connection of loop bar 6, first bolt post 7 cup joints first accepting 8 back threaded connection nut 9, the fixed welding second of bottom of loop bar 6 accepts 10, wear to be equipped with about the pole 11 between first accepting 8 and the second accepting 10, a set of second bolt post 12 of upper and lower end difference fixed connection of about the pole 11, threaded connection second nut 10 behind two sets of second bolt post 12 run through first accepting 8 and the second accepting 10 respectively, about the pole 11 cup joints the both sides fixed orifices of torsion arm 28.
The upper surface of the experiment platform 1 is in bolted connection with a base 4, the base 4 is fixedly connected with a base station 3, the base station 3 is sleeved with a central hole of a torsion arm 28, the top center of the base station 3 is fixedly connected with a first bearing 13, the first bearing 13 is in interference fit with a rotating shaft 14, the top end of the rotating shaft 14 is fixedly connected with a circular rim hand wheel 15, a cylindrical cavity 16 is arranged inside the base station 3, the bottom end of the cylindrical cavity 16 is fixedly connected with a second bearing 17, the second bearing 17 is in interference fit with the rotating shaft 14, a plurality of groups of through holes 18 are arranged between the cylindrical cavity 16 and the base station 3, the through holes 18 are in sliding fit with positioning pins 19, the tail ends of the positioning pins 19 are fixedly connected with one ends of springs 20, the other ends of the springs 20 are fixedly connected with limit blocks 21, the limit blocks 21 are embedded into the through holes 18 and fixedly connected with the inner walls of the, the pull ring 23 is fixedly connected with the side wall of the rotating shaft 14.
Further, the upper surface of the experiment platform 1 is fixedly connected with two sets of electric slide rails 24 which are arranged in parallel, the sliding blocks on the electric slide rails 24 are fixedly connected with the bottom end plane of the protective cover 25, the protective cover 25 is made of arc-shaped transparent materials, and when the base station 3 is covered by the protective cover 25, the torsion arm 28 can be observed conveniently.
Further, two sets of about plates 26 have been cup jointed on actuator 2's the output shaft, about plates 26 are arc and with the lateral wall phase-match of loop bar 6, about plates 26 butt loop bar 6, threaded connection fastening bolt 27 on two sets of about plates 26's the lateral wall all around, fastening bolt 27 supports the output shaft that leans on actuator 2 after passing about plates 26, through screwing up fastening bolt 27, about plates 26 can be fixed on loop bar 6, two sets of about plates 26 can play spacingly, the clamping action, fix loop bar 6 on actuator 2's output shaft effectively.
Further, the actuators 2 are arranged in two groups and are symmetrically arranged about the longitudinal central axis of the base 1, so that the fixing holes on the two sides of the torsion arm 28 are uniformly stressed.
Further, the second bolt column 12 is a half-threaded bolt, and its screw sections are slidably fitted with the first socket 8 and the second socket 10, respectively.
Further, the positioning pins 19 are provided with four sets arranged longitudinally at equal intervals, each set includes four positioning pins 19, and the positioning pins are circumferentially and uniformly distributed about the symmetry axis of the base 3.
The working principle is as follows: in actual use, as shown in fig. 1, the electric slide rail 24 is started, and the slider on the electric slide rail 24 drives the protective cover 25 away from the base 3.
As shown in fig. 4 and 5, firstly, the rim handwheel 15 is rotated by hand, the rim handwheel 15 drives the rotating shaft 14 to rotate, the rigid rope 22 is wound during the rotation of the rotating shaft 14, and the rigid rope 22 can pull the positioning pin 19 to retract into the through hole 18 in the direction of the rotating shaft 14. The spring 20 compresses and stores elastic potential energy while the retraction process is in progress, and the base 3 can be inserted into the center hole of the torsion arm 28. When the rim hand wheel 15 is rotated reversely, the spring 20 releases elastic potential energy to push the positioning pins 19 to extend out of the through holes 18, so that the upper groups of positioning pins 19 can extend out of the base 3 and limit the central hole of the torsion arm 28 on the base, and the lower groups of positioning pins 19 extend out of the base 3 and abut against the hole wall of the central hole of the torsion arm 28, thereby avoiding the torsion arm 28 from loosening longitudinally and transversely in the fatigue test process, improving the accuracy of the measurement result and finishing the positioning and installation of the central hole of the torsion arm 28.
As shown in fig. 2 and 3, the loop bar 6 is sleeved on the output shaft of the actuator 2, and then the fastening bolt 27 is tightened so that the two restraining plates 26 clamp the loop bar 6. After the second bolt column 12 at the lower end of the restraint rod 11 is sleeved into the second bearing piece 10, the fixing hole of the torsion arm 28 is sleeved into the restraint rod 11, then the first bearing piece 8 is sleeved into the second bolt column 12 at the upper end of the restraint rod 11 and the first bolt column 7 on the sleeve rod 6 respectively, and finally the nut 9 is screwed, so that the positioning and installation of the fixing hole of the torsion arm 28 are completed.
After the completion of the mounting, the electric slide rail 24 is started to cover the protective cover 25 above the torsion arm 28, so that a torsion fatigue test can be performed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a torsion arm assembly fatigue test device, includes experiment platform (1) to and actuator (2) and base station (3) on this experiment platform, its characterized in that: the top of the experimental platform (1) is fixedly connected with a flange seat (5), the flange seat (5) is connected with an actuator (2) in a flange way, a loop bar (6) is sleeved at the tail end of an output shaft of the actuator (2), the top of the loop bar (6) is fixedly connected with a first bolt column (7), the first bolt column (7) is sleeved with a first bearing piece (8) and then is in threaded connection with a nut (9), a second bearing piece (10) is fixedly welded at the bottom of the loop bar (6), a restraint rod (11) penetrates between the first bearing piece (8) and the second bearing piece (10), the upper end and the lower end of the restraint rod (11) are respectively fixedly connected with a group of second bolt columns (12), the two groups of second bolt columns (12) respectively penetrate through the first bearing piece (8) and the second bearing piece (10) and then are in threaded connection with a nut (9), the restraint rod (11) is sleeved with fixing holes at two sides of the torsion arm (28);
the upper surface of the experiment platform (1) is in bolted connection with a base (4), the base (4) is fixedly connected with a base station (3), the base station (3) is sleeved with a central hole of a torque arm (28), the top center of the base station (3) is fixedly connected with a first bearing (13), the first bearing (13) is in interference fit with a rotating shaft (14), the top end of the rotating shaft (14) is fixedly connected with a circular rim hand wheel (15), a cylindrical cavity (16) is arranged inside the base station (3), the bottom end of the cylindrical cavity (16) is fixedly connected with a second bearing (17), the second bearing (17) is in interference fit with the rotating shaft (14), a plurality of groups of through holes (18) are arranged between the cylindrical cavity (16) and the base station (3), the through holes (18) are in sliding fit with positioning pins (19), and the tail ends of the positioning pins (19) are fixedly connected with one ends of springs, the other end fixed connection stopper (21) of spring (20), stopper (21) embedding in through-hole (18), and with the inner wall fixed connection of through-hole (18), the terminal fixed connection rigidity rope (22) of locating pin (19), be equipped with the aperture in stopper (21), rigidity rope (22) run through behind this aperture fixed connection pull ring (23), pull ring (23) fixed connection the lateral wall of pivot (14).
2. A torsion arm assembly fatigue testing apparatus according to claim 1, wherein: the upper surface fixed connection of experiment platform (1) is two sets of electric slide rail (24) of parallel arrangement, the bottom plane of slider fixed connection safety cover (25) on electric slide rail (24), curved transparent material is adopted in safety cover (25).
3. A torsion arm assembly fatigue testing apparatus according to claim 1, wherein: two groups of constraint plates (26) are sleeved on an output shaft of the actuator (2), the constraint plates (26) are arc-shaped and are matched with the side walls of the loop bars (6), the constraint plates (26) are abutted to the loop bars (6), the side walls on the periphery of the two groups of constraint plates (26) are in threaded connection with fastening bolts (27), and the fastening bolts (27) penetrate through the constraint plates (26) and then are abutted to the output shaft of the actuator (2).
4. A torsion arm assembly fatigue testing apparatus according to claim 1, wherein: the actuators (2) are provided in two sets and are symmetrically installed about a longitudinal center axis of the base (3).
5. A torsion arm assembly fatigue testing apparatus according to claim 1, wherein: the second bolt column (12) is a half-thread bolt, and the screw rod area of the second bolt column is respectively matched with the first adapting piece (8) and the second adapting piece (10) in a sliding mode.
6. A torsion arm assembly fatigue testing apparatus according to claim 1, wherein: the positioning pins (19) are provided with four groups which are longitudinally arranged at equal intervals, each group comprises four positioning pins (19), and the positioning pins are circumferentially and uniformly distributed relative to the symmetry axis of the base platform (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080396.3A CN110095265B (en) | 2018-01-27 | 2018-01-27 | Torsion arm assembly fatigue test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080396.3A CN110095265B (en) | 2018-01-27 | 2018-01-27 | Torsion arm assembly fatigue test device |
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| Publication Number | Publication Date |
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| CN110095265A CN110095265A (en) | 2019-08-06 |
| CN110095265B true CN110095265B (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810080396.3A Active CN110095265B (en) | 2018-01-27 | 2018-01-27 | Torsion arm assembly fatigue test device |
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Citations (8)
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|---|---|---|---|---|
| JPH01232236A (en) * | 1988-03-11 | 1989-09-18 | Mitsuboshi Belting Ltd | Bearing run testing machine |
| CN201512344U (en) * | 2009-06-17 | 2010-06-23 | 福建省第五建筑工程公司 | Novel removing carapace |
| CN103698111A (en) * | 2013-11-22 | 2014-04-02 | 宁波拓普集团股份有限公司 | Linear and torsional fatigue test fixture for pipe bush |
| CN104236880A (en) * | 2014-08-26 | 2014-12-24 | 中国直升机设计研究所 | Fatigue test device for torque arm assembly |
| CN205020828U (en) * | 2015-10-19 | 2016-02-10 | 航天科工哈尔滨风华有限公司 | Turning tool |
| CN105445659A (en) * | 2015-12-17 | 2016-03-30 | 珠海格力电器股份有限公司 | FCT tool device provided with manipulator capable of pressing button automatically |
| CN205320610U (en) * | 2016-01-30 | 2016-06-22 | 韩强 | Liftable formula lawn mower adjustment mechanism |
| CN206609385U (en) * | 2017-03-24 | 2017-11-03 | 宿迁学院 | Toggle positioning tooth angle detects instrument in automobile cab turnover mechanism |
-
2018
- 2018-01-27 CN CN201810080396.3A patent/CN110095265B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01232236A (en) * | 1988-03-11 | 1989-09-18 | Mitsuboshi Belting Ltd | Bearing run testing machine |
| CN201512344U (en) * | 2009-06-17 | 2010-06-23 | 福建省第五建筑工程公司 | Novel removing carapace |
| CN103698111A (en) * | 2013-11-22 | 2014-04-02 | 宁波拓普集团股份有限公司 | Linear and torsional fatigue test fixture for pipe bush |
| CN104236880A (en) * | 2014-08-26 | 2014-12-24 | 中国直升机设计研究所 | Fatigue test device for torque arm assembly |
| CN205020828U (en) * | 2015-10-19 | 2016-02-10 | 航天科工哈尔滨风华有限公司 | Turning tool |
| CN105445659A (en) * | 2015-12-17 | 2016-03-30 | 珠海格力电器股份有限公司 | FCT tool device provided with manipulator capable of pressing button automatically |
| CN205320610U (en) * | 2016-01-30 | 2016-06-22 | 韩强 | Liftable formula lawn mower adjustment mechanism |
| CN206609385U (en) * | 2017-03-24 | 2017-11-03 | 宿迁学院 | Toggle positioning tooth angle detects instrument in automobile cab turnover mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 自动倾斜器扭力臂疲劳试验件破坏问题探究与分析;包名;《直升机技术》;20170430;第58-62页 * |
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| CN110095265A (en) | 2019-08-06 |
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Effective date of registration: 20210115 Address after: 225400 Yuanzhu town industrial cluster, Taixing City, Taizhou City, Jiangsu Province Applicant after: JIANGSU XIHUA FOUNDRY Co.,Ltd. Address before: 225327 group 4, Yongxing Village, yonganzhou Town, Gaogang District, Taizhou City, Jiangsu Province Applicant before: Jiang Panpan |
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