CN103439044A - System and method for testing yaw clamping force - Google Patents
System and method for testing yaw clamping force Download PDFInfo
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- CN103439044A CN103439044A CN2013103847725A CN201310384772A CN103439044A CN 103439044 A CN103439044 A CN 103439044A CN 2013103847725 A CN2013103847725 A CN 2013103847725A CN 201310384772 A CN201310384772 A CN 201310384772A CN 103439044 A CN103439044 A CN 103439044A
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Abstract
The invention discloses a system and method for testing yaw clamping force. The system comprises a supporting board, a pressed board, a transverse suspending rod assembly, a rack, a pressure sensor, a stud bolt and a support beam. The transverse suspending rod assembly further comprises a disc spring assembly, a guide rod pin, a friction sheet, a pressing plate and a transverse suspending rod. A groove is formed in the bottom of the transverse suspending rod, the guide rod pin, the disc spring assembly, the pressing plate and the friction sheet are sequentially arranged in the groove from bottom to top, and the pressure sensor is arranged between a pressed plate and the friction sheet. When a yaw clamping force test is conducted, the stud bolt is tightly screwed so that the guide rod pin, the disc spring assembly, the pressing plate and the friction sheet can be driven to move upwards together in sequence, therefore, the pressure sensor is tightly pressed and the force bearing process of a gear ring is simulated by the pressed plate. According to the system and method for testing yaw clamping force, the actual force receiving condition of the disc spring assembly of a fan yaw system can be simulated, the positive pressure relationship between the pre-tightening torque of the stud bolt and the friction sheet can be obtained, and therefore the pre-tightening torque value of the stud bolt with the required yaw power can be accurately obtained.
Description
Technical field
The present invention relates to a kind of pilot system and method thereof, especially relate to a kind of driftage holding force pilot system and method thereof that is applied to the wind power plant yaw system.
Background technology
Sliding friction formula yaw system is current more common active yawing system, the slidingtype yaw system adopts the pretension stud bolt, the compact disc spring provides normal pressure for the yaw system friction disc, and system, by the control to the stud bolt pre-fastening moment, is carried out the control system output power.Driftage power is the principal element of fan yaw security and stability, but due to stud bolt in the operation of actual pretension, be subject to the impacts such as bolt railway grease, bolt processing technic featuring, ambient conditions, pretightening technology, be difficult to determine accurately the pre-fastening moment of yaw system, thereby can accurately adjustment column hook bolt pre-fastening moment value do not reach the driftage performance number needed.Simultaneously, due to stud bolt, in pressured state, and the distortion such as dish spring is subject to the impact of assembling, temperature, and system can not be calculated by pre-fastening moment the normal pressure of friction disc, thereby can not guarantee by the control to pre-fastening moment to reach the required driftage power of driftage.
At present, domestic each media publication is not yet studied slidingtype yaw system pre-fastening moment, only the size of pretension is had to requirement.Yet, in current slidingtype yaw system structure, be to obtain by theoretical calculation formula the relation of the size of yaw system pre-fastening moment value and driftage holding force.The bolt test macro of applying in prior art, tested the pretightning force of tension bolt, and for the pretightning force of pressurized bolt, the test of output torque be yet there are no to relevant research.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of driftage holding force test pilot system and method thereof, the true stressing conditions of simulation fan yaw system dish spring group, obtain the normal pressure relation of stud bolt pre-fastening moment and friction disc, thereby driftage power requirement as required obtains the pre-fastening moment value of stud bolt more accurately.
In order to realize the foregoing invention purpose, the present invention specifically provides a kind of technic relization scheme of the holding force pilot system of going off course, a kind of driftage holding force pilot system comprises: back up pad, compression plate, horizontal hanger rod assembly, stand, pressure transducer, stud bolt and brace summer.Described back up pad is arranged on described brace summer by bolt, and described brace summer is arranged on described stand, and described compression plate is bolted on the bottom of described back up pad.Described horizontal hanger rod assembly further comprises dish spring group, guide rod pin, friction disc, platen, horizontal hanger rod, and the bottom of described horizontal hanger rod is provided with groove, and described guide rod pin, dish spring group, platen and friction disc are successively set in described groove from bottom to up.Be provided with described pressure transducer between described compression plate and described friction disc, described horizontal hanger rod is bolted on described back up pad, and described stud bolt is arranged in the threaded hole be connected with described bottom portion of groove.When being gone off course the holding force test, screw described stud bolt, drive successively described guide rod pin, dish spring group, platen and friction disc and move on the whole, thereby compress described pressure transducer, described back up pad and compression plate simulation yawing gear ring bear the acting force process.
Preferably, described driftage holding force pilot system also comprises pressing plate one, pressing plate two and stove bolt.Described pressing plate one and pressing plate two are arranged between pressure transducer and friction disc, and described pressing plate one and pressing plate two adopt rectangular platen, and clamp described pressing plate one and pressing plate two by the inside edge of described stove bolt and horizontal hanger rod.
The present invention also specifically provides a kind of technic relization scheme of the holding force test method of going off course in addition, a kind of driftage holding force test method, driftage holding force pilot system comprises back up pad, compression plate, pressing plate one, pressing plate two, horizontal hanger rod assembly, stand, pressure transducer, stud bolt and brace summer.Described horizontal hanger rod assembly further comprises dish spring group, guide rod pin, friction disc, platen and horizontal hanger rod, described driftage holding force test method comprises the bolt pretightening test process, described bolt pretightening test process is for testing the relation of described stud bolt pre-fastening moment and described output action power, and this process comprises the following steps:
Described stud bolt is carried out to the pretension operation, screw described stud bolt, drive described guide rod pin, thereby compress described dish spring group, again by described platen and described friction disc by force transmission to described pressure transducer, described pressure transducer is connected with data collecting instrument, the force value described pressure transducer collected by described data collecting instrument gathers to computing machine, thereby obtain described stud bolt pre-fastening moment value and two groups of data of output action power value, then obtain the relation of described pre-fastening moment and described output action power by data analysis.
Preferably, described driftage holding force test method also comprises dish spring group performance test process, and described dish spring group performance test process is for testing the performance of described dish spring group, and this process comprises the following steps:
Screw described stud bolt, compress described dish spring group, by described platen and described friction disc by the force transmission of described dish spring group to described pressure transducer, record the screw-in amount of described stud bolt, obtain the deformational displacement of dish spring group and two groups of data of acting force that described dish spring group is born, obtain again the stiffness curve of described dish spring group by data analysis, the rigidity value of more described dish spring group and the rigidity value of sample, the performance of the described dish spring of comparative analysis group.
Preferably, described driftage holding force test method also comprises dish spring group creep test process, and described dish spring group creep test process is for testing the rigidity creep properties of described dish spring group, and this process comprises the following steps:
Screw described stud bolt, compress described dish spring group, and lock described stud bolt, make described dish spring group in confined state, and keep described dish spring group in the confined state certain hour according to the needs of test, detect the force value situation of change of described dish spring group by described pressure transducer, thereby obtain the rigidity creep situation of described dish spring group.
Preferably, described driftage holding force test method also comprises thread lubricating grease measure of merit process, and described thread lubricating grease measure of merit process is for testing the impact of thread lubricating grease on described stud bolt output action power, and this process comprises the following steps:
There is thread lubricating grease and do not have in two kinds of situations of thread lubricating grease at described stud bolt, described stud bolt is carried out to the pretension operation, screw described stud bolt, drive described guide rod pin, thereby compress described dish spring group, again by described platen and described friction disc by force transmission to described pressure transducer, obtain the contrast situation of described stud bolt pre-fastening moment value and two groups of data of output action power value in two kinds of situations, thereby obtain the relation of described pre-fastening moment and described output action power in two kinds of situations, and obtain the impact of thread lubricating grease on described stud bolt pretension.
Preferably, described driftage holding force test method also comprises pre-tension method contrast test process, whether described pre-tension method contrast test process causes acting on the acting force difference on described friction disc for the different firmly beforehand means of more described stud bolt, thereby the validity and reliability of more different firmly beforehand meanses to described stud bolt pretension, this process comprises the following steps:
In the situation that change described stud bolt firmly beforehand means, described stud bolt is carried out to the pretension operation, screw described stud bolt, drive described guide rod pin, thereby compress described dish spring group, again by described platen and described friction disc by force transmission to described pressure transducer, obtain the contrast situation of described stud bolt pre-fastening moment value and two groups of data of output action power value in different firmly beforehand means situations, thereby obtain the relation of described stud bolt described pre-fastening moment and described output action power in different firmly beforehand means situations, described stud bolt firmly beforehand means includes but not limited to moment method firmly beforehand means and corner method firmly beforehand means.
Preferably, described driftage holding force pilot system also comprises pressing plate one, pressing plate two and stove bolt, described pressing plate one and pressing plate two are set between described pressure transducer and friction disc, described pressing plate one and pressing plate two adopt rectangular platen, and clamp described pressing plate one and pressing plate two by the inside edge of described stove bolt and horizontal hanger rod.
A kind of driftage holding force pilot system and the method thereof that by implementing the invention described above, provide have following technique effect:
(1) the present invention can simulate the stressing conditions of the parts such as blower fan gear ring, horizontal hanger rod, dish spring group, with back up pad and compression plate, has replaced gear ring, has simplified system architecture, also makes the test to the friction disc normal pressure become possibility;
(2) the present invention can be to the performance of dish spring group, thread lubricating grease, and the rationality of mucosal structure design etc. is carried out verification experimental verification, by experiment, obtain the relation of tools for bolts ' pretension moment and Axial stress in bolt, and can verify the accuracy of the commonly used at present tools for bolts ' pretension method that comprises corner method and moment method in the application of driftage pretension, and can compare the impact of thread lubricating grease on corner method and moment method;
(3) the present invention also have simple in structure, be easy to the assembling characteristics.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the go off course structural front view of a kind of embodiment of holding force pilot system of the present invention;
Fig. 2 is the go off course structure vertical view of a kind of embodiment of holding force pilot system of the present invention;
Fig. 3 is that the A-A of Fig. 2 of the present invention is to cut-open view;
Fig. 4 is the go off course three-dimensional structure diagram of a kind of embodiment of holding force pilot system of the present invention;
In figure: 1-back up pad, 2-compression plate, 3-pressing plate one, 4-pressing plate two, 5-horizontal hanger rod assembly, 6-stand, 7-pressure transducer, 8-dish spring group, 9-guide rod pin, 10-stud bolt, 11-stove bolt, 12-friction disc, 13-platen, 14-horizontal hanger rod, 15-brace summer.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
To as shown in accompanying drawing 4, provided the specific embodiment of the present invention a kind of go off course holding force pilot system and method thereof as accompanying drawing 1, below in conjunction with the drawings and specific embodiments, the invention will be further described.
The specific embodiment of a kind of holding force pilot system of going off course as shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4 comprises: back up pad 1, compression plate 2, horizontal hanger rod assembly 5, stand 6, pressure transducer 7, stud bolt 10 and brace summer 15.Back up pad 1 is arranged on brace summer 15 by bolt, and brace summer 15 is arranged on stand 6, and stand 6 is for supporting the table top of whole driftage holding force pilot system.Compression plate 2 is bolted on the bottom of back up pad 1, and compression plate 2, through modifier treatment, depression occurs while avoiding being subject to large pressure.Horizontal hanger rod assembly 5 further comprises dish spring group 8, guide rod pin 9, friction disc 12, platen 13, horizontal hanger rod 14, and the bottom of horizontal hanger rod 14 is provided with groove, and guide rod pin 9, dish spring group 8, platen 13 and friction disc 12 are successively set in groove from bottom to up.Be provided with pressure transducer 7 between compression plate 2 and friction disc 12, horizontal hanger rod 14 is bolted on back up pad 1, and stud bolt 10 is arranged in the threaded hole be connected with bottom portion of groove.When being gone off course the holding force test, screw stud bolt 10, drive successively guide rod pin 9, dish spring group 8, platen 13 and friction disc 12 and move on the whole, thus compaction pressure sensor 7, back up pad 1 and compression plate 2 simulation yawing gear rings bear the acting force process.
As another kind of specific embodiment of the present invention, driftage holding force pilot system also further comprises pressing plate 1, pressing plate 24 and stove bolt 11, pressing plate 1 and pressing plate 24 are arranged between pressure transducer 7 and friction disc 12, pressing plate 1 and pressing plate 24 adopt rectangular platen, and clamp pressing plate 1 and pressing plate 24 by the inside edge of stove bolt 11 and horizontal hanger rod 14.Increase the purpose of pressing plate 1 and pressing plate 24, at first be to be convenient to stud bolt 10 further to promote guide rod pin 9, drive dish spring group 8, platen 13, friction disc 12 moves on the whole, but because the displacement of stud bolt 10 is conditional, so need to there be pressing plate to come the gap of stuffing pressure sensor 7 and friction disc 12, in addition because the thickness of the pressure transducer 7 of different model is generally different, for the pressure transducer 7 of different manufacturers different model all can be suitable for, so select the pressing plate 1 of two different-thickness and pressing plate 24 to be used in conjunction with, do like this stroke of tightening that can reduce stud bolt 10, avoid stud bolt 10 to be screwed into the deficiency of stroke.Simultaneously, clamp pressing plate 1 and the pressing plate 24 of rectangle by the inside edge of stove bolt 11 and horizontal hanger rod 14, make in the pretension to stud bolt 10 operation, pressing plate can be along with rotation, thereby avoids the transfer of pressure transducer 7.
The true stressing conditions of the driftage holding force pilot system simulation fan yaw system dish spring group 8 that the specific embodiment of the invention is described, obtain the pre-fastening moment of stud bolt 10 and the relation of friction disc 12 normal pressures, thus the pre-fastening moment value of the stud bolt 10 during the driftage power requirement that obtains more accurately needing.Driftage holding force pilot system simulation fan yaw system, by the control to stud bolt 10 pre-fastening moments, the final output normal pressure of test disc spring group 8, can obtain more accurately by experiment the relation of pre-fastening moment and friction disc 12 normal pressures, thereby can in reality driftage debugging, adjust more accurately pre-fastening moment, guarantee to reach fan yaw power.And the specific embodiment of the invention can also be carried out the test of pre-fastening moment and dish spring group 8 output torque relations, influence factor to the operation of the pretension of whole yaw system is analyzed, can also verify the performance of dish spring group 8 simultaneously, the impact of checking thread lubricating grease on stud bolt 10 pretensions, and the corner method of checking stud bolt 10 pretensions and the accuracy of moment method.
The driftage holding force pilot system that the specific embodiment of the invention is described can be carried out the testing experiments such as bolt pretightening test, dish spring group Performance Detection, dish spring group creep detection, thread lubricating grease measure of merit, pre-tension method contrast test.
A kind of specific embodiment of the holding force test method of going off course, driftage holding force pilot system comprises back up pad 1, compression plate 2, horizontal hanger rod assembly 5, stand 6, pressure transducer 7, stud bolt 10 and brace summer 15.Horizontal hanger rod assembly 5 further comprises dish spring group 8, guide rod pin 9, friction disc 12, platen 13 and horizontal hanger rod 14.Driftage holding force test method comprises the bolt pretightening test process, and the bolt pretightening test process is for the relation of test pole hook bolt 10 pre-fastening moments and output action power, and this process comprises the following steps:
As another kind of specific embodiment of the present invention, driftage holding force test method also further comprises dish spring group performance test process, and dish spring group performance test process is for the performance of test disc spring group 8, and this process comprises the following steps:
Screw stud bolt 10, compact disc spring group 8, by platen 13 and friction disc 12 by the force transmission of dish spring group 8 to pressure transducer 7, record the screw-in amount of stud bolt 10, obtain the deformational displacement of dish spring group 8 and two groups of data of acting force that dish spring group 8 is born, obtain again the stiffness curve of dish spring group 8 by data analysis, compare the rigidity value of dish spring group 8 and the rigidity value of sample, the performance of comparative analysis dish spring group 8.
As another kind of specific embodiment of the present invention, driftage holding force test method also further comprises dish spring group creep test process, and dish spring group creep test process is for the rigidity creep properties of test disc spring group 8, and this process comprises the following steps:
Screw stud bolt 10, compact disc spring group 8, and locking column hook bolt 10, make dish spring group 8 in confined state, and keep dish spring group 8 in the confined state certain hour according to the needs of test, detect the force value situation of change of dish spring group 8 by pressure transducer 7, thereby obtain the rigidity creep situation of dish spring group 8.
As another kind of specific embodiment of the present invention, driftage holding force test method also further comprises thread lubricating grease measure of merit process, thread lubricating grease measure of merit process is for testing the impact of thread lubricating grease on stud bolt 10 output action power, and this process comprises the following steps:
There is thread lubricating grease and do not have in two kinds of situations of thread lubricating grease at stud bolt 10, stud bolt 10 is carried out to the pretension operation, screw stud bolt 10, drive guide rod pin 9, thereby compact disc spring group 8, again by platen 13 and friction disc 12 by force transmission to pressure transducer 7, obtain the contrast situation of stud bolt 10 pre-fastening moment values and two groups of data of output action power value in two kinds of situations, thereby obtain the relation of pre-fastening moment and output action power in two kinds of situations, and obtain the impact of thread lubricating grease on stud bolt 10 pretensions.
As another kind of specific embodiment of the present invention, driftage holding force test method also further comprises pre-tension method contrast test process, whether pre-tension method contrast test process causes acting on the acting force difference on friction disc 12 for the different firmly beforehand means of reference column hook bolt 10, thereby the validity and reliability of more different firmly beforehand meanses to stud bolt 10 pretensions, this process comprises the following steps:
In the situation that change stud bolt 10 firmly beforehand meanses, stud bolt 10 is carried out to the pretension operation, screw stud bolt 10, drive guide rod pin 9, thereby compact disc spring group 8, again by platen 13 and friction disc 12 by force transmission to pressure transducer 7, obtain the contrast situation of stud bolt 10 pre-fastening moment values and two groups of data of output action power value in different firmly beforehand means situations, thereby obtain the relation of stud bolt 10 pre-fastening moment and output action power in different firmly beforehand means situations, obtain the accuracy of different pre-tension methods to stud bolt 10 pretensions and output action power relation, stud bolt 10 firmly beforehand meanses include but not limited to moment method firmly beforehand means and corner method firmly beforehand means.
As a kind of preferably specific embodiment of the present invention, driftage holding force pilot system also comprises pressing plate 1, pressing plate 24 and stove bolt 11.Pressing plate 1 and pressing plate 24 further are set between pressure transducer 7 and friction disc 12, and pressing plate 1 and pressing plate 24 adopt rectangular platen, and clamp pressing plate 1 and pressing plate 24 by the inside edge of stove bolt 11 and horizontal hanger rod 14.
The stressing conditions that the driftage holding force pilot system that the specific embodiment of the invention is described can be simulated blower fan gear ring, horizontal hanger rod, dish spring group etc., adopt back up pad 1 and compression plate 2 to replace gear ring, simplify system architecture, also made the test to friction disc 12 normal pressures become possibility.In addition, the technical scheme of describing by specific embodiment can be to the performance of dish spring group 8, the performance of thread lubricating grease, and firmly beforehand meanses etc. carry out verification experimental verification.In addition, due to the current stressing conditions to compression column hook bolt 10, do not have desirable computing formula can draw the pre-fastening moment of stud bolt 10 and the relation of axial force, the specific embodiment of the invention can be by test, obtain the pre-fastening moment of stud bolt 10 and the relation of axial force, and can verify tools for bolts ' pretension method commonly used at present, corner method and the moment method accuracy in the application of driftage pretension, and can compare the impact of thread lubricating grease on corner method and moment method.Simultaneously, the technical scheme that the specific embodiment of the invention is described also has simple in structure, is easy to the characteristics of assembling.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction.Although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention.Any those of ordinary skill in the art, in the situation that do not break away from Spirit Essence of the present invention and technical scheme, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, be equal to replacements, equivalence changes and modify, all still belong in the scope that technical solution of the present invention protects.
Claims (8)
1. a driftage holding force pilot system, it is characterized in that, comprise: back up pad (1), compression plate (2), horizontal hanger rod assembly (5), stand (6), pressure transducer (7), stud bolt (10) and brace summer (15), described back up pad (1) is arranged on described brace summer (15) by bolt, it is upper that described brace summer (15) is arranged on described stand (6), and described compression plate (2) is bolted on the bottom of described back up pad (1); Described horizontal hanger rod assembly (5) further comprises dish spring group (8), guide rod pin (9), friction disc (12), platen (13), horizontal hanger rod (14), the bottom of described horizontal hanger rod (14) is provided with groove, and described guide rod pin (9), dish spring group (8), platen (13) and friction disc (12) are successively set in described groove from bottom to up; Be provided with described pressure transducer (7) between described compression plate (2) and described friction disc (12), it is upper that described horizontal hanger rod (14) is bolted on described back up pad (1), and described stud bolt (10) is arranged in the threaded hole be connected with described bottom portion of groove; When being gone off course the holding force test, screw described stud bolt (10), driving successively described guide rod pin (9), dish spring group (8), platen (13) and friction disc (12) moves on the whole, thereby compress described pressure transducer (7), described back up pad (1) and compression plate (2) simulation yawing gear ring bear the acting force process.
2. a kind of driftage holding force pilot system according to claim 1, it is characterized in that: described driftage holding force pilot system also comprises pressing plate one (3), pressing plate two (4) and stove bolt (11), described pressing plate one (3) and pressing plate two (4) are arranged between pressure transducer (7) and friction disc (12), described pressing plate one (3) and pressing plate two (4) adopt rectangular platen, and clamp described pressing plate one (3) and pressing plate two (4) by the inside edge of described stove bolt (11) and horizontal hanger rod (14).
3. a driftage holding force test method, it is characterized in that, driftage holding force pilot system comprises back up pad (1), compression plate (2), horizontal hanger rod assembly (5), stand (6), pressure transducer (7), stud bolt (10) and brace summer (15), described horizontal hanger rod assembly (5) further comprises dish spring group (8), guide rod pin (9), friction disc (12), platen (13) and horizontal hanger rod (14), described driftage holding force test method comprises the bolt pretightening test process, described bolt pretightening test process is for testing the relation of described stud bolt (10) pre-fastening moment and described output action power, this process comprises the following steps:
Described stud bolt (10) is carried out to the pretension operation, screw described stud bolt (10), drive described guide rod pin (9), thereby compress described dish spring group (8), again by described platen (13) and described friction disc (12) by force transmission to described pressure transducer (7), described pressure transducer (7) is connected with data collecting instrument, the force value described pressure transducer (7) collected by described data collecting instrument gathers to computing machine, thereby obtain described stud bolt (10) pre-fastening moment value and two groups of data of output action power value, obtain again the relation of described pre-fastening moment and described output action power by data analysis.
4. a kind of driftage holding force test method according to claim 3, it is characterized in that: described driftage holding force test method also comprises dish spring group performance test process, described dish spring group performance test process is for testing the performance of described dish spring group (8), and this process comprises the following steps:
Screw described stud bolt (10), compress described dish spring group (8), by described platen (13) and described friction disc (12) by the force transmission of described dish spring group (8) to described pressure transducer (7), record the screw-in amount of described stud bolt (10), obtain the deformational displacement of dish spring group (8) and two groups of data of acting force that described dish spring group (8) is born, obtain again the stiffness curve of described dish spring group (8) by data analysis, the rigidity value of more described dish spring group (8) and the rigidity value of sample, the performance of the described dish spring of comparative analysis group (8).
5. a kind of driftage holding force test method according to claim 4, it is characterized in that: described driftage holding force test method also comprises dish spring group creep test process, described dish spring group creep test process is for testing the rigidity creep properties of described dish spring group (8), and this process comprises the following steps:
Screw described stud bolt (10), compress described dish spring group (8), and lock described stud bolt (10), make described dish spring group (8) in confined state, and keep described dish spring group (8) in the confined state certain hour according to the needs of test, detect the force value situation of change of described dish spring group (8) by described pressure transducer (7), thereby obtain the rigidity creep situation of described dish spring group (8).
6. a kind of driftage holding force test method according to claim 5, it is characterized in that: described driftage holding force test method also comprises thread lubricating grease measure of merit process, described thread lubricating grease measure of merit process is for testing the impact of thread lubricating grease on described stud bolt (10) output action power, and this process comprises the following steps:
There is thread lubricating grease and do not have in two kinds of situations of thread lubricating grease at described stud bolt (10), described stud bolt (10) is carried out to the pretension operation, screw described stud bolt (10), drive described guide rod pin (9), thereby compress described dish spring group (8), again by described platen (13) and described friction disc (12) by force transmission to described pressure transducer (7), obtain the contrast situation of described stud bolt (10) pre-fastening moment value and two groups of data of output action power value in two kinds of situations, thereby obtain the relation of described pre-fastening moment and described output action power in two kinds of situations, and obtain the impact of thread lubricating grease on described stud bolt (10) pretension.
7. a kind of driftage holding force test method according to claim 6, it is characterized in that: described driftage holding force test method also comprises pre-tension method contrast test process, whether described pre-tension method contrast test process causes acting on the acting force difference on described friction disc (12) for the different firmly beforehand means of more described stud bolt (10), thereby the validity and reliability of more different firmly beforehand meanses to described stud bolt (10) pretension, this process comprises the following steps:
In the situation that change described stud bolt (10) firmly beforehand means, described stud bolt (10) is carried out to the pretension operation, screw described stud bolt (10), drive described guide rod pin (9), thereby compress described dish spring group (8), again by described platen (13) and described friction disc (12) by force transmission to described pressure transducer (7), obtain the contrast situation of described stud bolt (10) pre-fastening moment value and two groups of data of output action power value in different firmly beforehand means situations, thereby obtain the relation of described stud bolt (10) described pre-fastening moment and described output action power in different firmly beforehand means situations, described stud bolt (10) firmly beforehand means includes but not limited to moment method firmly beforehand means and corner method firmly beforehand means.
8. according to the described a kind of driftage holding force test method of arbitrary claim in claim 3 to 7, it is characterized in that: described driftage holding force pilot system also comprises pressing plate one (3), pressing plate two (4) and stove bolt (11), described pressing plate one (3) and pressing plate two (4) are set between described pressure transducer (7) and friction disc (12), described pressing plate one (3) and pressing plate two (4) adopt rectangular platen, and clamp described pressing plate one (3) and pressing plate two (4) by the inside edge of described stove bolt (11) and horizontal hanger rod (14).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106197800A (en) * | 2016-07-11 | 2016-12-07 | 上海航天设备制造总厂 | Thrust measures frock and measuring method thereof |
| CN113624389A (en) * | 2021-08-06 | 2021-11-09 | 福州外语外贸学院 | Bolt tension value slide rule mechanism and use method thereof |
| CN114000985A (en) * | 2020-07-28 | 2022-02-01 | 北京金风慧能技术有限公司 | Monitoring device of yaw brake device of wind generating set |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197800A (en) * | 2016-07-11 | 2016-12-07 | 上海航天设备制造总厂 | Thrust measures frock and measuring method thereof |
| CN114000985A (en) * | 2020-07-28 | 2022-02-01 | 北京金风慧能技术有限公司 | Monitoring device of yaw brake device of wind generating set |
| CN114000985B (en) * | 2020-07-28 | 2023-09-01 | 北京金风慧能技术有限公司 | Monitoring device of yaw brake device of wind generating set |
| CN113624389A (en) * | 2021-08-06 | 2021-11-09 | 福州外语外贸学院 | Bolt tension value slide rule mechanism and use method thereof |
| CN113624389B (en) * | 2021-08-06 | 2023-03-14 | 福州外语外贸学院 | Bolt tension value slide rule mechanism and use method thereof |
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| CN103439044B (en) | 2015-08-05 |
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