CN109839273A - Rod end bearing limiting temperature test fixture and its test method - Google Patents
Rod end bearing limiting temperature test fixture and its test method Download PDFInfo
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- CN109839273A CN109839273A CN201910282797.1A CN201910282797A CN109839273A CN 109839273 A CN109839273 A CN 109839273A CN 201910282797 A CN201910282797 A CN 201910282797A CN 109839273 A CN109839273 A CN 109839273A
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Abstract
The present invention relates to a kind of rod end bearing limiting temperature test fixture and its test methods, including fixed station, adapter, pedestal, wear case connecting shaft, garment bag, motor shaft, shaft coupling, fixture connecting shaft and retaining ring, adapter is mounted on the base, pedestal is mounted on fixed station, bearing is tested when test to be connected by the external screw thread of its rod end with the internal thread hole of adapter, the outer diameter of adapter is matched with pedestal inner hole, axis clamping is connect with fixture with the screw for passing through retaining ring, it is driven by a motor by shafting, realizes the radial rotary of subject bearing inner race；Fixture connecting shaft band is fluted, wears case connecting shaft with the connection shaft shoulder, wears case connecting shaft and be connected with motor by shaft coupling across temperature test chamber, wear case connecting shaft by garment bag and pass through temperature test chamber.Clamp structure of the invention is simple, easy to disassemble, shortens the time that installation prepares, improves equipment service efficiency.
Description
Technical field
The invention belongs to test mechanical apparatus fields, and in particular to a kind of rod end bearing limiting temperature test fixture and its examination
Proved recipe method.
Background technique
Limiting temperature test is a series of qualification examination of rod end rolling bearings such as aviation rod end double-row roller bearing
Test one of big event.By taking aviation rod end double-row roller bearing as an example, limiting temperature test holds Universal gauge according to the profile shaft
The related request of model: subject bearing is placed under minimum use -55 DEG C of environment of temperature, is rotated with the speed of 3r/min ± 1r/min
100h adjusts the temperature to 121 DEG C, operates 100h.This test platform not only can satisfy the basic demand of above-mentioned test, can also be with
By adjusting the temperature of sweat box and the revolving speed of experiment electric motor, meet wanting for larger range of relevant temperature rotation test condition
It asks.
Existing limiting temperature test platform designs poor universality, can not achieve many types of bearing and shares, so that completing not
With model bearing limiting temperature test when, test fixture is needed to frequently replace, to need the fixture of plurality of specifications to complete
Test, causes the significant wastage of fund, time and resource；In addition, existing limiting temperature experimental rig, drive rod and bearing
Interior circle center is not easy centering, is easy to appear eccentric problem, and bias can make bearing inner race bear additional radial pressure, bearing life drop
It is low, severely impact the accuracy of test result；Rod end bearing fixation not easy to install, testing equipment install when, fixture to the heart not
Easily guarantee, simultaneously because the problems such as test fixture is heavy, space is limited in sweat box, passes through temperature tank wall and case in driving motor
When inner bearing connects, installation process is relatively cumbersome laborious, and easily causes the interference between test fixture each section, substantially extends examination
Test time.
Summary of the invention
For above situation, the present invention provides a kind of rod end bearing limiting temperature test fixture, overcomes the prior art not
Foot optimizes clamp structure by improving, and not only increases the versatility of test fixture, accelerates installation and removal speed, ensures
It is good to neutrality, and can be practical with the accuracy of guarantee test result.
The technical scheme adopted by the invention is that a kind of rod end bearing limiting temperature test fixture is provided, including fixed station,
Adapter, pedestal wear case connecting shaft, garment bag, motor shaft, shaft coupling, fixture connecting shaft and retaining ring, and the fixed station is equipped with
Two groups of threaded holes, and every group of threaded hole is distributed on two concentric circles, passes through the first threaded hole group for the fixed station with screw
Plate body be fixed on the bottom plate of the temperature test chamber, the pedestal be equipped with third threaded hole group, the 4th threaded hole group
With adapter mounting hole, the third threaded hole group is passed through with screw and is connected with the second threaded hole group, the pedestal is consolidated
It is connected on the fixed station, the circumferential direction of the adapter is uniformly provided with multiple threaded holes, the adapter is installed on described
In adapter mounting hole, the 4th threaded hole group is passed through with screw and is connected with the threaded hole on the adapter, described will turn
Joint chair is fixed on the pedestal；The fixture connecting shaft includes bearing installation shaft part, the shaft shoulder, connection axis body, groove and company
Spindle threaded hole group, the shaft shoulder are set to the first end center of connection axis body, and the center of the shaft shoulder first end is pacified equipped with bearing
Shaft part is filled, the groove is set to the central location of the connection axis body second end, is uniformly provided on the cell wall of the groove multiple
Threaded hole forms the connecting shaft threaded hole group, and the case connecting shaft of wearing includes set on the connection for wearing case connection axis body first end
The shaft shoulder and first flange set on second end, the garment bag are installed on the garment bag mounting hole on the temperature test chamber, institute
It states and wears case connection axis body and be installed in the garment bag mounting hole, the connection shaft shoulder is installed on the groove of the fixture connecting shaft
Within, the connecting shaft threaded hole group is passed through with screw and is uniformly set to the connection shaft shoulder threaded hole connected on shaft shoulder circumference
It is connected, the fixture connecting shaft and the case connecting shaft of wearing is fixed together, the first end of the motor shaft is equipped with the second method
The first flange and the second flange are fixed together by orchid by the shaft coupling, the second end of the motor shaft with
The output shaft of the motor is fixedly connected with.
The motor is fixed on motor fixed platform, and idler wheel, the idler wheel installation are equipped under the motor fixed platform
On raceway, manual lead screw is installed, it can be achieved that in a certain range between the second end and rack of the motor fixed platform
Axial movement, the manual lead screw drive and is furnished with mechanical lock by manpower, and the motor passes through cable and electric machine controller
It is connected, is sent and instructed by the electric machine controller, control revolving speed, steering and the runing time of motor, the temperature test chamber is logical
It crosses cable to be connected with sweat box controller, is sent and instructed by the sweat box controller, control the temperature in the temperature test chamber
Angle value, warm speed change degree and soaking time；And subject bearing passes through the interior of the external screw thread of its rod end and the adapter when test
Threaded hole is connected, and the inner ring of the subject bearing is installed on the bearing installation shaft part of the fixture connecting shaft first end,
The retaining ring center is equipped with through-hole, and screw is passed through the through-hole of the retaining ring and is set to the fixture connecting shaft first end center
Threaded hole is connected, and the shaft shoulder on the retaining ring and the fixture connecting shaft clamps the subject bearing jointly, by shafting by
The motor drives, and realizes the rotation of subject bearing inner race.
It may be preferred that the pedestal includes base body, third threaded hole group, the 4th threaded hole group and adapter installation
Hole, the base body center are equipped with through-hole, and the section of the pedestal is in youngster's font, and the third threaded hole is mounted on the pedestal
On the wing side of body, including the multiple threaded holes being uniformly arranged, the 4th threaded hole group is radially even to be set to the pedestal
The second end of body.
It may be preferred that the adapter is set as hollow body, and internal screw thread is tapped in bore of transferring.
It may be preferred that after subject bearing installation, the axis of rod end axis is parallel to the pedestal and adapter
Central axis, the axis of bearing inner race are parallel to the fixture connecting shaft and wear the central axes of case connecting shaft.
It may be preferred that the test fixture part in the temperature test chamber is all made of stainless steel material.
It may be preferred that the garment bag and wearing and being wound with cotton yarn between case connecting shaft.
Another aspect of the present invention provides a kind of test method based on aforementioned rod end bearing limiting temperature test fixture, packet
Include following steps:
S1: before on-test, the adapter, fixture connecting shaft and retaining ring are not installed；
S2: the rod end of the subject bearing is threaded into the internal thread hole of the adapter；
S3: the bearing that the inner ring of the subject bearing is installed to the fixture connecting shaft is installed into shaft part；
S4: the retaining ring is installed in the threaded hole of the fixture connecting shaft first end with screw, and with the fixture
The shaft shoulder in connecting shaft together clamps the subject bearing；
S5: the adapter is installed on the pedestal, and adjusts the height that the subject bearing rod end exposes, together
When adjust the manual lead screw, so that the subject bearing is carried out axis mobile；
S6: the groove of the fixture connecting shaft second end is installed to the connection shaft shoulder for wearing case connecting shaft first end
On；
S7: after the completion of debugging, the power supply of the electric machine controller and sweat box controller and the electricity of the motor are opened
Source is tested.
Compared with the prior art, the present invention has the following advantages:
1, of the invention versatile, by simply replacing baffle and screw thread adapter, different model can be realized
Rolling bearing completes limiting temperature test according to standard requirements, saves fund and fixture storage space；
2, functionality of the invention is good, be easily guaranteed that in installation process subject bearing to neutrality, ensure examination well
Test the precision and accuracy of result；
3, structure of the invention is simple, light-weight, does not generate the interference between clamp part in operating process, convenient in temperature
Installation and removal subject bearing, shortens the time of intertrial interval in the narrow space of case, improves equipment service efficiency；
4, reliability level of the invention is high, and sweat box and rotating electric machine have certain the degree of automation, tests process
In can automatically adjust test temperature and revolving speed, have the function of automatic alarm and automatically powering off, reduce the frequency of tour.
Detailed description of the invention
Fig. 1 is experimental rig schematic cross-sectional view of the invention；And
Fig. 2 is flow chart of work methods of the invention.
Main appended drawing reference is as follows:
1- temperature test chamber, 2- fixed station, 3- adapter, 4- pedestal, 5- wear case connecting shaft, 6- garment bag, 7- motor shaft,
8- shaft coupling, 9- fixture connecting shaft, 10- subject bearing, 11- retaining ring, 12- motor, 13- electric machine controller, the control of 14- sweat box
Device, 15- motor fixed platform, 16- idler wheel, 17- raceway, the manual lead screw of 18-, 19- mechanical lock, 20- rack.
Specific embodiment
By the technology contents of the detailed present invention, structure feature, reach purpose and efficacy, below with reference to Figure of description
It is described in detail.
The present invention provides a kind of rod end bearing limiting temperature test fixture, as shown in Figure 1, include fixed station 2, adapter 3,
Pedestal 4 wears case connecting shaft 5, garment bag 6, motor shaft 7, shaft coupling 8, fixture connecting shaft 9 and retaining ring 11, and fixed station 2 is equipped with two
Group threaded hole, and every group of threaded hole is distributed on two concentric circles, passes through the first threaded hole group 22 for the plate of fixed station 2 with screw
Body 21 is fixed on the bottom plate 111 of temperature test chamber 1, and pedestal 4 is equipped with third threaded hole group 42,43 and of the 4th threaded hole group
Adapter mounting hole 44 passes through third threaded hole group 42 with screw and is connected with the second threaded hole group 23, pedestal 4 is fixed on fixation
On platform 2, the circumferential direction of adapter 3 is uniformly provided with multiple threaded holes 31, and adapter 3 is installed in adapter mounting hole 44, uses
Screw passes through the 4th threaded hole group 43 and is connected with the threaded hole 31 on adapter 3, and adapter 3 is fixed on pedestal 4；Fixture
Connecting shaft 9 includes bearing installation shaft part 91, the shaft shoulder 92, connection axis body 93, groove 94 and connecting shaft threaded hole group 95, and the shaft shoulder 92 is set
In the first end center of connection axis body 93, the center of 92 first end of the shaft shoulder is equipped with bearing and installs shaft part 91, and groove 94 is set to connection
The central location of 93 second end of axis body is uniformly provided with multiple threaded holes on the cell wall of groove 94, forms connecting shaft threaded hole group 95,
Wearing case connecting shaft 5 includes being set to the connection shaft shoulder 51 for wearing case connection 52 first end of axis body and the first flange 53 set on second end,
Garment bag 6 is installed on the garment bag mounting hole 121 on temperature test chamber 1, wears case connection axis body 52 and is installed on garment bag mounting hole
In 121, the connection shaft shoulder 51 is installed within the groove 94 of fixture connecting shaft 9, with screw across connecting shaft threaded hole group 95 and
The even connection shaft shoulder threaded hole 54 being set on connection 51 circumference of the shaft shoulder is connected, and fixture connecting shaft 9 is connected in case connecting shaft 5 is worn
Together, the first end of motor shaft 7 is equipped with second flange 71, is connected in first flange 53 and second flange 71 by shaft coupling 8
Together, the second end of motor shaft 7 and the output shaft of motor 12 are fixedly connected with.
Motor 12 is fixed on motor fixed platform 15, and idler wheel 16 is equipped under motor fixed platform 15, and idler wheel 16 is installed on
On raceway 17, manual lead screw 18 is installed, it can be achieved that a certain range between the second end and rack 20 of motor fixed platform 15
Interior axial movement, manual lead screw 18 drive and are furnished with mechanical lock 19 by manpower, and motor 12 passes through cable and electric machine controller
13 are connected, and are sent and are instructed by electric machine controller 13, control revolving speed, steering and the runing time of motor 12, and temperature test chamber 1 passes through
Cable is connected with sweat box controller 14, by sweat box controller 14 send instruct, control temperature test chamber 1 in temperature value,
Warm speed change degree and soaking time；And subject bearing 10 passes through the external screw thread of its rod end and the internal thread hole of adapter 3 when test
It is connected, the inner ring of subject bearing 10 is installed on the bearing installation shaft part 91 of 9 first end of fixture connecting shaft, 11 center of retaining ring
Equipped with through-hole, the through-hole that screw passes through retaining ring 11 is connected with the threaded hole for being set to 9 first end of fixture connecting shaft center, retaining ring
11 and fixture connecting shaft 9 on the shaft shoulder 92 jointly clamp subject bearing 10, driven by shafting by motor 12, realize subject bearing
The rotation of 10 inner rings.
Pedestal 4 includes base body 41, third threaded hole group 42, the 4th threaded hole group 43 and adapter mounting hole 44, pedestal
41 center of body is equipped with through-hole, and the section of pedestal 4 is in youngster's font, and third threaded hole group 42 is set on the wing side of base body 41, packet
Include the multiple threaded holes being uniformly arranged, the radially even second end set on base body 41 of the 4th threaded hole group 43；Adapter 3 is set
It is set to hollow body, and is tapped with internal screw thread in 3 hole of adapter；After being tested the installation of bearing 10, the axis of rod end axis is parallel to pedestal 4
With the central axis of adapter 3, the axis of bearing inner race is parallel to fixture connecting shaft 9 and wears the central axes of case connecting shaft 5；Temperature
Test fixture part in degree chamber 1 is all made of stainless steel material；It garment bag 6 and wears and is wound with cotton yarn between case connecting shaft 5.
Another aspect of the present invention provides a kind of test method based on aforementioned rod end bearing limiting temperature test fixture, such as
Shown in Fig. 2, comprising the following steps:
S1: before on-test, adapter 3, fixture connecting shaft 9 and retaining ring 11 are not installed；
S2: the rod end for being tested bearing 10 is threaded into the internal thread hole of adapter 3；
S3: the bearing that the inner ring for being tested bearing 10 is installed to fixture connecting shaft 9 is installed into shaft part 91；
S4: retaining ring 11 is installed in the threaded hole of 9 first end of fixture connecting shaft with screw, and in fixture connecting shaft 9
The shaft shoulder 92 together will subject bearing 10 clamp；
S5: adapter 3 is installed on pedestal 4, and adjusts the height that subject 10 rod end of bearing exposes, while adjusting hand
Dynamic lead screw 18 makes to be tested the progress axis movement of bearing 10；
S6: the groove 94 of 9 second end of fixture connecting shaft is installed on the connection shaft shoulder 51 for wearing 5 first end of case connecting shaft；
S7: after the completion of debugging, opening the power supply of electric machine controller 13 and sweat box controller 14 and the power supply of motor 12,
It is tested.
Specifically, adapter 3 of the invention is mounted on pedestal 4, pedestal 4 is mounted on fixed station 2, and when test is tested
Bearing 10 is connected by the external screw thread of its rod end with the internal thread hole of adapter 3, outer diameter and the 4 inner hole phase of pedestal of adapter 3
Cooperation, is mounted on together on fixed station 2；It is clamped with the screw and fixture connecting shaft 9 that pass through retaining ring 11, by shafting by motor 12
It drives, realizes the radial rotary of subject 10 inner ring of bearing.The threaded connection being tested between bearing 10 and adapter 3 is convenient for disassembly and assembly, together
When by control subject 10 rod end of bearing expose height, be also easily guaranteed that subject 10 rotation center of bearing and motor 12 rotation in
The heart it is consistent.Pedestal 4 is circumferential to be uniformly arranged that there are four threaded holes, and the annular groove of adapter 3 is connected in by bolt, passes through setting and closes
The dimensional tolerance and machining accuracy of reason are that can guarantee the connection concentricity of two axis.Thus it is guaranteed that the machining accuracy of fixture, Ji Ke
In experimentation quickly and easily realize subject bearing 10 to neutrality.
Fixture connecting shaft 9 wears case connecting shaft 5 with the connection shaft shoulder 51,94 inner surface of groove and connecting shaft with fluted 94
It is transition fit between 51 outer surface of shoulder, in two shaft connection places, circumferential even four threaded holes of cloth are connected, by setting by bolt
Fixed reasonable dimensional tolerance and machining accuracy are that can guarantee the connection concentricity of two axis.
The outer wall that case connecting shaft 5 is worn across temperature test chamber 1 is connected with motor 12 by shaft coupling 8, is reduced because of motor
Moment of flexure caused by the decentraction of vibration and installation.It wears case connecting shaft 5 and temperature test chamber 1 is passed through by garment bag 6, with garment bag 6
Clearance fit, as the material selection polytetrafluoroethylene (PTFE) of preferred garment bag 6, the profile material have it is wear-resisting, be not easy thermally conductive, bearing work
Make the features such as indeformable in temperature range, ensure that long axis passes through at temperature test chamber 1, in the running, axis surface will not be worn,
The temperature inside the box and extraneous quick heat exchange will not be caused, the perseverance of 1 internal preset temperature of temperature test chamber is well ensured
It is fixed.
Motor 12 is fixed on motor fixed platform 15, and idler wheel 16 and raceway 17 are equipped under motor fixed platform 15, can be with
Realize a certain range of movement axially, it is mobile to drive manual lead screw 18 by manpower and be furnished with mechanical lock 19, guarantee
In the stabilization of the course of work, motor 12 is connected with electric machine controller 13 by cable, sent by electric machine controller 13 motor 12
Instruction controls revolving speed, steering and the runing time of motor 12.Temperature test chamber 1 is connected by cable with sweat box controller 14
It connects, is sent and instructed by sweat box controller 14, control the temperature value, warm speed change degree and soaking time of temperature test chamber 1.
Experimental rig of the invention only needs replacing adapter 3, fixture connecting shaft 9 and retaining ring 11, can be realized for not
Rod end rolling bearing with model completes limiting temperature test.Utilize the fixed subject bearing 10 of adapter 3, subject axis convenient for loading and unloading
Hold 10；Meanwhile during the installation process, control subject 10 rod end of bearing expose height, be also easy to guarantee subject bearing 10 with
The centering of 12 shaft of motor.Therefore, by fixed station 2, adapter 3, pedestal 4, wear case connecting shaft 5, garment bag 6, fixture connect
The residual altitude value of the dimensional tolerance design of spindle 9 and the control of machining accuracy and subject product rod end, can be convenient, fast
Ground guarantees that the rotation that bearing 10 is tested in disassembly process to neutrality, ensure that the precision and accuracy of test result, fixture knot
Structure is simple, easy to disassemble, there is no interfering between part in installation, disassembly, experimentation, shortens installation and prepares
Time, improve equipment service efficiency.
In actual use, garment bag 6 of the case connecting shaft 5 on temperature test chamber 1 is worn to be inserted into sweat box,
One end is connected by shaft coupling 8 with the rotation axis of motor 12, and the other end is inserted into the groove 94 of fixture connecting shaft 9, and with four
The circumferential threaded hole that bolt is screwed into two connecting shafts is fixed, and adapter 3 is packed into pedestal 4, and is screwed into pedestal 4 with four bolts
Circumferential threaded hole, be screwed into the annular groove of adapter 3, axial restraint carried out to adapter 3, fixed station 2 is mounted on temperature
The bottom of chamber 1, each section, which is all made of, is bolted fixation.By cable, electric machine controller 13 and sweat box controller 14
The temperature in the operating condition and temperature test chamber 1 of motor 12 is controlled respectively, can also be made into motor 12 and Motor controlling machine 13
The temperature-controlled cabinet of integrated integrated electric machine and integral type.
When limiting temperature is tested, motor 12 rearward slided using the manual lead screw 18 of motor fixed platform 15 a bit of
Distance is tested bearing 10 convenient for being loaded, and the rod end for being tested bearing 10 is first screwed in adapter 3, then stretched out with slide calliper rule control rod end
Amount makes insertion subject 10 inner ring of bearing of fixture connecting shaft 9, is pulled with internal screw thread along positive gently pushing motor fixed platform 15
Hand locks the bolt of pedestal 4, the threaded hole of 9 front end of fixture connecting shaft is finally screwed in bolt, by fixture each section and bearing
Inner ring is locked securely, and after installation is fixed, gently rotation is tested the inner ring of bearing 10, it is ensured that bearing by lateral force, does not avoid shadow
Ring the accuracy of test result.
After the completion of limiting temperature test, it is only necessary to unclamp the bolt across retaining ring 11 with spanner, pushing motor is fixed backward
After platform 15 separates bearing inner race with fixture connecting shaft 9, lower subject bearing 10 can be screwed from adapter 3, is more renewed
It is tested bearing 10, the rod end for being tested bearing 10 is first screwed in into adapter 3, then control rod end overhang with slide calliper rule, then forward direction pushes
Motor fixed platform 15 makes the inner ring of the insertion subject bearing 10 of fixture connecting shaft 9, with the bolt of internal screw thread spanner locking pedestal 4
Afterwards, the limiting temperature test of next round can be carried out again.If replacing the test bearing 10 of new model, it is only necessary to replacement switching
Seat 3, fixture connecting shaft 9 and retaining ring 11, other steps are constant.
Preferably, failing, in temperature test chamber 1 to prevent test fixture under long term high temperature, cold service
Test fixture part is all made of stainless steel material, to prevent the air inside and outside temperature test chamber 1 from connecting by garment bag 6 with case is worn
Slight gap between axis 5 carries out small heat exchange, causes unnecessary waste of energy, and cotton yarn can be used and suitably block sky
Gap.
The above is the preferred embodiment of the application, is not limited the scope of protection of the present invention with this, it is noted that right
For those skilled in the art, under the premise of not departing from this technology principle, can also make it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the application.
Claims (7)
1. a kind of rod end bearing limiting temperature test fixture, which is characterized in that including fixed station, adapter, pedestal, wear case connection
Axis, garment bag, motor shaft, shaft coupling, fixture connecting shaft and retaining ring,
The fixed station is equipped with two groups of threaded holes, and every group of threaded hole is distributed on two concentric circles, passes through first with screw
The plate body of the fixed station is fixed on the bottom plate of the temperature test chamber by threaded hole group, and the pedestal is equipped with third spiral shell
Pit group, the 4th threaded hole group and adapter mounting hole pass through the third threaded hole group and second threaded hole with screw
Group is connected, and the pedestal is fixed on the fixed station, the circumferential direction of the adapter is uniformly provided with multiple threaded holes, by institute
It states adapter to be installed in the adapter mounting hole, passes through the spiral shell in the 4th threaded hole group and the adapter with screw
Pit is connected, and the adapter is fixed on the pedestal；
The fixture connecting shaft includes bearing installation shaft part, the shaft shoulder, connection axis body, groove and connecting shaft threaded hole group, the axis
Shoulder is set to the first end center of connection axis body, and the center of the shaft shoulder first end is equipped with bearing and installs shaft part, and the groove is set to
The central location of the connection axis body second end, is uniformly provided with multiple threaded holes on the cell wall of the groove, forms the connection
Axle thread hole group, the case connecting shaft of wearing includes set on the connection shaft shoulder for wearing case connection axis body first end and set on the of second end
One flange, the garment bag are installed on the garment bag mounting hole on the temperature test chamber, and the case connection axis body of wearing is installed on
In the garment bag mounting hole, the connection shaft shoulder is installed within the groove of the fixture connecting shaft, is passed through with screw described
Connecting shaft threaded hole group is connected with the connection shaft shoulder threaded hole being uniformly set on the connection shaft shoulder circumference, and the fixture is connected
Axis is fixed together with the case connecting shaft of wearing, and the first end of the motor shaft is equipped with second flange, will by the shaft coupling
The first flange is fixed together with the second flange, and the second end of the motor shaft and the output shaft of the motor are mutually solid
Even；
The motor is fixed on motor fixed platform, and idler wheel is equipped under the motor fixed platform, and the idler wheel is installed on rolling
Manual lead screw is installed, it can be achieved that a certain range of axis on road, between the second end and rack of the motor fixed platform
To movement, the manual lead screw drives and is furnished with mechanical lock by manpower, and the motor is connected by cable with electric machine controller,
It is sent and is instructed by the electric machine controller, control revolving speed, steering and the runing time of motor, the temperature test chamber passes through cable
It is connected with sweat box controller, is sent and instructed by the sweat box controller, controls temperature value in the temperature test chamber, temperature
Speed change degree and soaking time；And
It is tested bearing when test to be connected by the external screw thread of its rod end with the internal thread hole of the adapter, the subject bearing
Inner ring be installed on the fixture connecting shaft first end bearing installation shaft part on, the retaining ring center be equipped with through-hole, by spiral shell
The through-hole followed closely across the retaining ring is connected with the threaded hole for being set to fixture connecting shaft first end center, the retaining ring and institute
It states the shaft shoulder in fixture connecting shaft and clamps the subject bearing jointly, driven by shafting by the motor, realize subject bearing
The rotation of inner ring.
2. rod end bearing limiting temperature test fixture according to claim 1, which is characterized in that the pedestal includes pedestal
Body, third threaded hole group, the 4th threaded hole group and adapter mounting hole, the base body center are equipped with through-hole, the pedestal
Section is in youngster's font, and the third threaded hole is mounted on the wing side of the base body, including the multiple screw threads being uniformly arranged
Hole, the radially even second end set on the base body of the 4th threaded hole group.
3. rod end bearing limiting temperature test fixture according to claim 2, which is characterized in that the adapter is set as
Hollow body, and internal screw thread is tapped in bore of transferring.
4. rod end bearing limiting temperature test fixture according to claim 2, which is characterized in that the subject bearing installation
Afterwards, the axis of rod end axis is parallel to the central axis of the pedestal and adapter, and the axis of bearing inner race is parallel to described
Fixture connecting shaft and the central axes for wearing case connecting shaft.
5. rod end bearing limiting temperature test fixture according to claim 1, which is characterized in that in the temperature test chamber
Test fixture part be all made of stainless steel material.
6. rod end bearing limiting temperature test fixture according to claim 1, which is characterized in that the garment bag and wear case
Cotton yarn is wound between connecting shaft.
7. a kind of test method using rod end bearing limiting temperature test fixture described in one of claim 1 to 6, feature exist
In, comprising the following steps:
S1: before on-test, the adapter, fixture connecting shaft and retaining ring are not installed；
S2: the rod end of the subject bearing is threaded into the internal thread hole of the adapter；
S3: the bearing that the inner ring of the subject bearing is installed to the fixture connecting shaft is installed into shaft part；
S4: the retaining ring is installed in the threaded hole of the fixture connecting shaft first end with screw, and is connect with the fixture
The shaft shoulder on axis together clamps the subject bearing；
S5: the adapter is installed on the pedestal, and adjusts the height that the subject bearing rod end exposes, and is adjusted simultaneously
The manual lead screw is saved, so that the subject bearing is carried out axis mobile；
S6: the groove of the fixture connecting shaft second end is installed to described wear on the connection shaft shoulder of case connecting shaft first end；
S7: after the completion of debugging, opening the power supply of the electric machine controller and sweat box controller and the power supply of the motor, into
Row test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282797.1A CN109839273B (en) | 2019-04-09 | 2019-04-09 | Rod end bearing limit temperature test fixture and test method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282797.1A CN109839273B (en) | 2019-04-09 | 2019-04-09 | Rod end bearing limit temperature test fixture and test method thereof |
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| CN109839273A true CN109839273A (en) | 2019-06-04 |
| CN109839273B CN109839273B (en) | 2020-07-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110243602A (en) * | 2019-07-19 | 2019-09-17 | 中国航空综合技术研究所 | Oscillating bearing cold scuffing pilot system and its assemble method |
| CN110849602A (en) * | 2019-10-30 | 2020-02-28 | 西北工业大学 | Temperature and rotational speed adjustable high temperature rotating part dynamic experiment device |
| CN111504636A (en) * | 2019-10-27 | 2020-08-07 | 江西中船航海仪器有限公司 | Shafting positioning device in incubator |
| CN112729833A (en) * | 2020-12-31 | 2021-04-30 | 沈阳建筑大学 | Broken shaft type bearing test system |
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| CN110243602A (en) * | 2019-07-19 | 2019-09-17 | 中国航空综合技术研究所 | Oscillating bearing cold scuffing pilot system and its assemble method |
| CN110243602B (en) * | 2019-07-19 | 2021-04-02 | 中国航空综合技术研究所 | Low-temperature wear test system for joint bearing and assembling method thereof |
| CN111504636A (en) * | 2019-10-27 | 2020-08-07 | 江西中船航海仪器有限公司 | Shafting positioning device in incubator |
| CN111504636B (en) * | 2019-10-27 | 2022-04-01 | 江西中船航海仪器有限公司 | Shafting positioning device in incubator |
| CN110849602A (en) * | 2019-10-30 | 2020-02-28 | 西北工业大学 | Temperature and rotational speed adjustable high temperature rotating part dynamic experiment device |
| CN112729833A (en) * | 2020-12-31 | 2021-04-30 | 沈阳建筑大学 | Broken shaft type bearing test system |
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