CN111721532B - Synchronous rotation testing machine for inner ring and outer ring of long-rod-end joint bearing - Google Patents
Synchronous rotation testing machine for inner ring and outer ring of long-rod-end joint bearing Download PDFInfo
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- CN111721532B CN111721532B CN202010443490.8A CN202010443490A CN111721532B CN 111721532 B CN111721532 B CN 111721532B CN 202010443490 A CN202010443490 A CN 202010443490A CN 111721532 B CN111721532 B CN 111721532B
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- 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
- G01M13/04—Bearings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a joint bearing test technical field specifically discloses a stock class rod end joint bearing inner and outer lane synchronous rotation testing machine, rotate excitation device, inner circle rotation excitation device including test bed, outer lane, wherein: the outer ring rotation excitation device comprises an outer ring driving part, an outer ring rotation excitation part, an outer ring main shaft part and a rod end rotation support part; the inner ring rotation excitation device comprises an inner ring driving component, an inner ring rotation excitation component, an inner ring main shaft component and an inner ring connecting shaft. The testing machine for the synchronous rotation of the inner ring and the outer ring of the long-rod-end joint bearing realizes the integrated test of the inner ring and the outer ring of the long-rod-end joint bearing, better accords with the motion working conditions of different rotations of the inner ring and the outer ring, is closer to the real state of the end joint bearing during use, and has more accurate test results.
Description
Technical Field
The invention relates to the technical field of joint bearing tests, in particular to a long rod type rod end joint bearing inner and outer ring synchronous rotation testing machine.
Background
The joint bearing can rotate at a certain angle during movement, has the characteristics of bearing radial load and axial load, has the performance directly influencing the performance of a rotating mechanism, and is one of key parts of the rotating mechanism.
Some experimental devices for measuring and researching the properties of the joint bearing such as lubrication and fatigue are available, such as: the multi-load motion joint bearing fatigue limit testing machine (CN109163904A) realizes a multi-load motion joint bearing fatigue limit test by using a dynamic torque sensor and a special loading system; the four-crank oscillating block mechanism joint bearing high-speed fatigue testing machine (CN103335846A) provides a crank shaft type dynamic balance structure with four cranks, and can simultaneously carry out fatigue tests on the four joint bearings; the heating loading fatigue test device (CN201335770) of the high-pressure oscillating bearing of the engine realizes the heating loading fatigue test of the high-pressure oscillating bearing of the engine by applying a heating furnace and an electric control principle. However, most of the existing schemes are directed at the contact pair body of the spherical joint bearing or the long rod type rod end joint bearing, and the testing machine of the long rod type rod end bearing is few, so that the integrated test is difficult to realize. On the other hand, most of the existing joint bearing testing machines are that one end of an inner ring and an outer ring is fixed, the other end of the inner ring and the outer ring rotates, namely, the inner ring or the outer ring rotates independently, and the working conditions that some inner rings and some outer rings rotate simultaneously cannot be met. If the robot with multiple degrees of freedom has rotational freedom inside and outside, the traditional joint bearing test of the inner ring or the outer ring is not suitable any more.
Therefore, a testing machine for synchronously rotating the inner ring and the outer ring aiming at the rod end joint bearing of the long rod is needed.
Disclosure of Invention
In order to solve the technical problem, the embodiment of the invention provides a long rod type rod end joint bearing inner and outer ring synchronous rotation testing machine.
The utility model provides a synchronous rotation testing machine of interior outer lane of stock class rod end joint bearing which characterized in that, rotates excitation device and inner circle rotation excitation device including test bed and the outer lane of installing on test bed, wherein:
the outer ring rotation excitation device comprises an outer ring driving part, an outer ring rotation excitation part, an outer ring main shaft part and a rod end rotation support part; the output end of the outer ring driving part is fixedly connected with the input end of the outer ring rotation excitation part; the output end of the outer ring rotation excitation component rotates in a reciprocating mode within a first angle range; the input end of the outer ring main shaft component is fixedly connected with the output end of the outer ring rotating excitation component, and the output end of the outer ring main shaft component is fixedly connected with the tail end of a long rod of the rod end joint bearing; the rod end rotating support component is positioned below the long rod and is in contact connection with the long rod;
the inner ring rotation excitation device comprises an inner ring driving part, an inner ring rotation excitation part, an inner ring main shaft part and an inner ring connecting shaft; the output end of the inner ring driving component is fixedly connected with the input end of the inner ring rotation excitation component; the output end of the inner ring rotation excitation component rotates in a reciprocating mode in a second angle range; the input end of the inner ring main shaft component is fixedly connected with the output end of the inner ring rotation excitation component, and the output end of the inner ring main shaft component is fixedly connected with the front end of the inner ring connecting shaft; the tail end of the inner ring connecting shaft is fixedly arranged on an inner ring of the rod end joint bearing.
In some embodiments of the invention, the outer ring rotation excitation device further comprises a rod end connection member, and the output end of the outer ring spindle unit is fixedly connected with the end of the long rod through the rod end connection member.
In some embodiments of the present invention, the inner ring rotation excitation device further includes an inner ring connecting member, and the output end of the inner ring main shaft member is fixedly connected to the front end of the inner ring connecting shaft through the inner ring connecting member.
In some embodiments of the invention, the outer ring drive component and the inner ring drive component each comprise a drive motor, a coupling and a connecting shaft, wherein:
the driving motor is fixed on the test base;
the end of an output shaft of the driving motor is fixedly connected with the front end of the connecting shaft by the coupler;
the tail end of the connecting shaft is fixedly connected with the outer ring rotation excitation component or the inner ring rotation excitation component.
In some embodiments of the invention, the outer and inner ring rotary actuating members each comprise a main rotary disk, a connecting rod and a rotary block, wherein:
the center of the main rotating disc is provided with a first through hole which is fixedly connected with the tail end of the connecting shaft;
the front end of the connecting rod is hinged with the non-central position of the main rotating disc, and the rear end of the connecting rod is hinged with the upper part of the rotating block;
the lower part of the rotating block is fixedly connected with the input end of the outer ring main shaft component or the inner ring main shaft component.
In some embodiments of the invention, the drive motor is a variable frequency motor
In some embodiments of the invention, the outer ring spindle assembly and the inner ring spindle assembly each comprise a spindle, a support bearing and a bearing housing, wherein:
the front end of the main shaft is fixedly connected with the lower part of the rotating block, and the rear end of the main shaft is fixedly connected with the tail end of a long rod of the rod end joint bearing;
the supporting bearing is sleeved on the main shaft and is arranged on the bearing block;
the bottom of the bearing seat is arranged on the test base table.
In some embodiments of the invention, the outer ring spindle unit and the inner ring spindle unit each comprise at least two support bearings and a bearing seat.
In some embodiments of the present invention, the rod end rotation support means comprises a left support member and a right support member respectively located at left and right sides of the long rod and in contact connection with the long rod, wherein:
the left supporting assembly and the right supporting assembly respectively comprise a first supporting bearing, a second supporting bearing, a supporting shaft, a supporting base and an arc-shaped connecting plate; the inner rings of the first support bearing and the second support bearing are fixedly connected with the support shaft; the supporting shaft is fixedly arranged on the supporting base; one side surface of the arc-shaped connecting plate is fixedly connected with the outside of the long rod, and the other side surface of the arc-shaped connecting plate is in contact connection with the outer rings of the first supporting bearing and the second supporting bearing.
In some embodiments of the invention, the outer race rotation activation device includes one or more rod end rotation support members.
The testing machine for the synchronous rotation of the inner ring and the outer ring of the long-rod-end joint bearing disclosed by the invention realizes the integrated test of the inner ring and the outer ring of the long-rod-end joint bearing, and compared with the existing simple test scheme of testing the inner ring or the outer ring and fixing the other ring, the testing machine is more suitable for the different rotating motion working conditions of the inner ring and the outer ring, is closer to the real state of the end joint bearing in use, and has more accurate test results.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of a long rod-like rod end joint bearing inner and outer ring synchronous rotation testing machine according to an embodiment of the invention;
FIG. 2 is a schematic structural view of an outer race rotation excitation device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an inner race rotation excitation device according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an outer race drive component and an inner race drive component according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an outer race rotation excitation member and an inner race rotation excitation member according to an embodiment of the present invention;
FIG. 6 is a structural view of an outer ring spindle unit and an inner ring spindle unit according to an embodiment of the present invention;
FIG. 7 is a schematic structural view (one) of a rod end rotation support member according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a rod end rotation support member according to an embodiment of the present invention;
FIG. 9 is a schematic structural view (III) of a rod end rotation support member according to an embodiment of the present invention;
wherein: 1-a test bed, 2-an outer ring rotation exciting device, 3-an inner ring rotation exciting device, 4-an outer ring driving component, 5-an outer ring rotation exciting component, 6-an outer ring spindle component, 7-a rod end rotation supporting component, 8-an inner ring driving component, 9-an inner ring rotation exciting component, 10-an inner ring spindle component, 11-an inner ring connecting shaft, 12-a rod end connecting component, 13-an inner ring connecting component, 14-a driving motor, 15-a coupler, 16-a connecting shaft, 17-a main rotating disk, 18-a connecting rod, 19-a rotating block, 20-a spindle, 21-a supporting bearing, 22-a bearing seat, 23-a left supporting component, 24-a right supporting component, 25-a first supporting bearing, 26-a second supporting bearing, 27-support shaft, 28-support base and 29-arc connecting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
As shown in fig. 1 to fig. 3, an embodiment of the present invention discloses a long rod end joint bearing inner and outer ring synchronous rotation testing machine, which includes a test base platform 1, and an outer ring rotation exciting device 2 and an inner ring rotation exciting device 3 mounted on the test base platform 1. The embodiment of the invention is suitable for testing the rod end joint bearing of a long rod, the outer ring of the rod end joint bearing of the long rod comprises a long rod part, the outer ring rotation excitation device 2 is used for driving the outer ring of the rod end joint bearing to perform a rotation test, and the inner ring rotation excitation device 3 is used for driving the inner ring of the rod end joint bearing to perform a rotation test. Wherein: the outer ring rotation excitation device 2 comprises an outer ring driving part 4, an outer ring rotation excitation part 5, an outer ring main shaft part 6 and a rod end rotation support part 7; the output end of the outer ring driving part 4 is fixedly connected with the input end of the outer ring rotation excitation part 5; the output end of the outer ring rotation excitation part 5 rotates in a reciprocating way in a first angle range; the input end of the outer ring main shaft part 6 is fixedly connected with the output end of the outer ring rotating excitation part 5, and the output end of the outer ring main shaft part 6 is fixedly connected with the tail end of a long rod of a rod end joint bearing; the rod end rotating support part 7 is positioned below the long rod and is in contact connection with the long rod. The inner ring rotation exciting device 3 comprises an inner ring driving part 8, an inner ring rotation exciting part 9, an inner ring main shaft part 10 and an inner ring connecting shaft 11; the output end of the inner ring driving component 8 is fixedly connected with the input end of the inner ring rotation exciting component 9; the output end of the inner ring rotation excitation component 9 rotates in a reciprocating manner in a second angle range; the input end of the inner ring main shaft component 10 is fixedly connected with the output end of the inner ring rotation excitation component 9, and the output end of the inner ring main shaft component 10 is fixedly connected with the front end of the inner ring connecting shaft 11; the tail end of the inner ring connecting shaft 11 is fixedly arranged on an inner ring of the rod end joint bearing.
In the outer ring rotation exciting device 2, the outer ring driving part 4 is a power output part, the outer ring rotation exciting part 5 is a power conversion part, and circumferential rotating force is converted into reciprocating rotating force in a first angle range, so that the outer ring main shaft part 6 drives the long rod of the rod end joint bearing to rotate in a reciprocating manner in the first angle range, and the test of the outer ring of the rod end joint bearing is realized. In the inner ring rotation exciting device 3, the inner ring driving part 8 is a power output part, the inner ring rotation exciting part 9 is a power conversion part, and converts a circumferential rotating force into a reciprocating rotating force in a second angle range, so that the inner ring spindle part 10 drives the inner ring connecting shaft 11 and the inner ring of the rod end joint bearing to rotate in a reciprocating manner in the second angle range, and the test of the inner ring of the rod end joint bearing is realized. Since the rod end joint bearing of the long rod type has a long rod structure, the rod end rotation support member 7 in the present embodiment is located below the long rod in a contact connection relationship with the long rod, for supporting the rod end joint bearing, and can allow the long rod to be rotated in a reciprocating manner within a first angle range. In this embodiment, the values of the first angle range and the second angle range are not limited, and are specifically determined by the structures of the outer ring rotation excitation part 5 and the inner ring rotation excitation part 9, and in general experiments, the values of the first angle range and the second angle range are-90 ° to 90 °, and a person skilled in the art can set the optimum rotation angle range according to specific product parameters of a tested rod end knuckle bearing.
The testing machine for the synchronous rotation of the inner ring and the outer ring of the long-rod-end knuckle bearing provided by the embodiment of the invention realizes the integrated test of the inner ring and the outer ring of the long-rod-end knuckle bearing, and compared with the existing simple test scheme of testing the inner ring or the outer ring and fixing the other ring, the testing machine is more suitable for the movement working conditions of different rotations of the inner ring and the outer ring, is closer to the real state of the end knuckle bearing in use, and has more accurate test results.
Specifically, as shown in fig. 2, the outer ring rotation excitation device 2 in the embodiment of the present invention further includes a rod end connection component 12, and the output end of the outer ring spindle unit 6 is fixedly connected to the end of the long rod through the rod end connection component 12. The rod end connecting part 12 fixes the output end of the outer ring main shaft part 6 and the long rod into a whole, and when the outer ring main shaft part 6 rotates in a reciprocating mode within a first angle range, the rod end connecting part 12 and the long rod are driven to rotate in a reciprocating mode within the first angle range, and therefore the outer ring test of the rod end joint bearing is achieved.
Specifically, as shown in fig. 3, the inner ring rotation excitation device 3 in the embodiment of the present invention further includes an inner ring connecting member 13, and the output end of the inner ring spindle unit 10 is fixedly connected to the front end of the inner ring connecting shaft 11 through the inner ring connecting member 13. The inner ring connecting part 13 fixes the output end of the inner ring main shaft part 10 and the front end of the inner ring connecting shaft 11 into a whole, and when the inner ring main shaft part 10 rotates in a reciprocating manner within a second angle range, the inner ring connecting part 13 and the inner ring of the rod end joint bearing are driven to rotate in a reciprocating manner within the second angle range, so that an inner ring test of the rod end joint bearing is realized. Preferably, the inner ring connecting component 13 in this embodiment is a coupling, and the output end of the inner ring spindle component and the front end of the inner ring connecting shaft 11 are fixed.
Specifically, as shown in fig. 4, the outer ring driving component 4 and the inner ring driving component 8 each include a driving motor 14, a coupling 15, and a connecting shaft 16, wherein: the driving motor 14 is fixed on the test base table 1; the end of the output shaft of the driving motor 14 is fixedly connected with the front end of the connecting shaft 16 by the coupler 15; the end of the connecting shaft 16 is fixedly connected to the outer ring rotation excitation member 5 or the inner ring rotation excitation member 9. In this embodiment, a product signal of the driving motor 14 is not limited, and preferably, the driving motor 14 is a variable frequency motor, and can output circumferential rotating forces of different frequencies, so that the inner ring or the outer ring of the bearing can rotate within a certain angle range of different frequencies, and the test effect is closer to the actual use situation of the bearing. The coupler 15 is used to fixedly connect the end of the output shaft of the driving motor 14 and the front end of the connecting shaft 16, and the specific installation manner is well known to those skilled in the art, so that the detailed description is omitted here. The fixed connection of the end of the connecting shaft 16 to the outer ring rotation excitation member 5 or the inner ring rotation excitation member 9 may be realized by a lock nut, or by other members capable of realizing the fixed connection.
Specifically, as shown in fig. 5, the outer-ring rotation excitation member 5 and the inner-ring rotation excitation member 9 each include a main rotation disk 17, a link 18, and a rotation block 19, wherein: a first through hole is formed in the center of the main rotating disc 17 and is fixedly connected with the tail end of the connecting shaft 16 through the first through hole; the front end of the connecting rod 18 is hinged with the non-central position of the main rotating disc 17, and the rear end of the connecting rod 18 is hinged with the upper part of the rotating block 19; the lower part of the turning block 19 is fixedly connected with the input end of the outer ring spindle unit 6 or the inner ring spindle unit 10. In this embodiment, the center of the main rotating disk 17 is fixedly connected to the connecting shaft 16, and the fixed connection can be realized by a lock nut, so that when the driving motor 14 rotates, the main rotating disk 17 is driven to rotate coaxially. The connecting rod 18, the main rotating disk 17 and the rotating block 19 are hinged to each other to realize relative rotation of the three, and in order to realize that the circumferential rotating force output by the driving motor 14 is converted into a reciprocating rotating force within a certain angle range, the distance from the connecting position of the main rotating disk 17 and the connecting shaft 16 to the connecting position of the main rotating disk 17 and the connecting rod 18 is smaller than the distance from the connecting position of the rotating block 19 and the connecting rod 18 to the connecting position of the rotating block 19 and the input end of the outer ring spindle unit 6 or the inner ring spindle unit 10. The shape of the main rotating disk 17 and the rotating block 19 is not limited in this embodiment, as shown in fig. 5, the main rotating disk 17 is circular, and the rotating block 19 is fan-shaped, and those skilled in the art can design other shapes to implement this embodiment, which is not limited in any way.
Specifically, as shown in fig. 6, each of the outer-ring spindle unit 6 and the inner-ring spindle unit 10 includes a spindle 20, a support bearing 21, and a bearing housing 22, wherein: the front end of the main shaft 20 is fixedly connected with the lower part of the rotating block 19, and the rear end of the main shaft 20 is fixedly connected with the tail end of a long rod of the rod end joint bearing; the supporting bearing 21 is sleeved on the main shaft 20, and the supporting bearing 21 is arranged on the bearing block 22; the bearing seat 22 is mounted at the bottom on the test bed 1. The support bearing 21 and the bearing seat 22 provide a support force for the main shaft 20, and also provide a support force for the rotating block 19 fixedly connected with the front end of the main shaft 20, so that the main shaft 20 can rotate back and forth within a certain angle range. Preferably, the outer ring spindle unit 6 and the inner ring spindle unit 10 in this embodiment each include at least two support bearings 21 and bearing seats 22, respectively mounted on the front half and the rear half of the spindle 20, for preventing the spindle 20 from being influenced by the weight of the rotating block 19 to the rotating effect thereof. More preferably, the front half part and the rear half part of the main shaft 20 in the embodiment have a stepped structure with a reduced diameter, the inner ring size of the two support bearings 21 is matched with the smaller diameter part of the main shaft 20, and the two support bearings are respectively mounted on the front half part and the rear half part of the main shaft 20 to realize a supporting function and limit the position of the main shaft 20 to prevent the main shaft 20 from moving back and forth. In this embodiment, the bearing housing 22 is provided with a through hole having a size matching that of the support bearing 21, and the support bearing 21 is mounted in the through hole. The support bearing 21 in this embodiment is preferably a rolling bearing, which does not affect the rotating effect of the main shaft 20.
In this embodiment, the front end of the main shaft 20 is fixedly connected with the lower part of the rotating block 19, and can be locked by a pin. The rear end of the main shaft 20 is fixedly connected with the end of the long rod of the rod end joint bearing, and in combination with the above-mentioned embodiment, the rod end connecting component 12 is used to fixedly connect the rear end of the main shaft 20 with the end of the long rod of the rod end joint bearing. Preferably, as shown in fig. 2, the rod end connection component 12 in this embodiment is designed in a U shape, a through hole is formed at the bottom, a thread is formed at the rear end of the main shaft 20, and the main shaft is fixed by a lock nut after passing through the through hole, where it is noted that the diameter of the through hole formed in the rod end connection component 12 matches the diameter of the rear end of the main shaft 20, and the diameter of the lock nut is larger than the diameter of the through hole, so as to fixedly connect the main shaft 20 and the rod end connection component 12. Two ends of the U-shaped rod end connecting component 12 are fixed with the tail end of the long rod of the rod end joint bearing.
Specifically, as shown in fig. 7 to 9, the rod end rotation support member 7 includes a left support member 23 and a right support member 24 which are respectively located at the left and right sides of the long rod and are in contact connection with the long rod, wherein: the left supporting component 23 and the right supporting component 24 respectively comprise a first supporting bearing 25, a second supporting bearing 26, a supporting shaft 27, a supporting base 28 and an arc-shaped connecting plate 29; inner rings of the first support bearing 25 and the second support bearing 26 are fixedly connected with the support shaft 27; the supporting shaft 27 is fixedly arranged on the supporting base 28; one side surface of the arc-shaped connecting plate 29 is fixedly connected with the outside of the long rod, and the other side surface of the arc-shaped connecting plate 29 is in contact connection with the outer rings of the first supporting bearing 25 and the second supporting bearing 26.
The inner rings of the support base 28, the support shaft 27, and the first support bearing 25 and the second support bearing 26 in this embodiment may be fixed by bolts, welding, or the like. The supporting base 28 may be provided with a plurality of through holes, and the through holes are fixed to the test bed 1 by bolts. The arc connecting plate 29 in this embodiment is used for assembling the outside of the long rod into an arc, as shown in fig. 9, the arc connecting plates 29 of a certain size can be installed on both sides of the long rod according to the range of the rotation angle of the long rod, or a whole arc connecting plate 29 can be directly designed, as long as the outer edge in the range of the rotation angle of the long rod is an arc.
In left side supporting component 23 and right supporting component 24, support base 28, support shaft 27 and first support bearing 25, the inner circle of second support bearing 26 is reciprocal fixed, and first support bearing 25, the outer lane of second support bearing 26 can be when stock certain angle within range reciprocating rotation, the extrados of the outside arc connecting plate 29 of fixed mounting at the stock with it reciprocal motion, for the stock provides the holding power, avoid stock weight too big and the vibration appears, crooked problem, also the card pause appears when further preventing the stock from rotating, ensure that the test goes on smoothly.
The left support component 23 and the right support component 24 of the present embodiment are respectively installed on the left side and the right side of the long rod, and the distance between the left support component and the right support component should be smaller than the width of the long rod and the arc-shaped connecting plate 29 fixedly installed outside, so that the support function can be realized. Preferably, the outer ring rotation excitation device 2 in the embodiment of the present invention includes one or more rod end rotation support members 7 distributed at the front end, the middle section or the rear end of the long rod, so as to realize multi-point support for the long rod and distribute the stress of the long rod.
The testing machine for the synchronous rotation of the inner ring and the outer ring of the long-rod-end joint bearing disclosed by the invention realizes the integrated test of the inner ring and the outer ring of the long-rod-end joint bearing, and compared with the existing simple test scheme of testing the inner ring or the outer ring and fixing the other ring, the testing machine is more suitable for the different rotating motion working conditions of the inner ring and the outer ring, is closer to the real state of the end joint bearing in use, and has more accurate test results.
The present invention has been further described with reference to the specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above embodiments by those skilled in the art after reading the present specification are within the scope of the present invention.
Claims (7)
1. The utility model provides a synchronous rotation testing machine of interior outer lane of stock class rod end joint bearing which characterized in that includes the test bed platform and installs outer lane rotation excitation device and inner circle rotation excitation device on the test bed platform, wherein:
the outer ring rotation excitation device comprises an outer ring driving part, an outer ring rotation excitation part, an outer ring main shaft part and a rod end rotation support part; the output end of the outer ring driving part is fixedly connected with the input end of the outer ring rotation excitation part; the output end of the outer ring rotation excitation component rotates in a reciprocating mode in a first angle range; the input end of the outer ring main shaft component is fixedly connected with the output end of the outer ring rotating excitation component, and the output end of the outer ring main shaft component is fixedly connected with the tail end of a long rod of a rod end joint bearing; the rod end rotating support component is positioned below the long rod and is in contact connection with the long rod;
the inner ring rotation excitation device comprises an inner ring driving part, an inner ring rotation excitation part, an inner ring main shaft part and an inner ring connecting shaft; the output end of the inner ring driving component is fixedly connected with the input end of the inner ring rotation exciting component; the output end of the inner ring rotation excitation component rotates in a reciprocating mode in a second angle range; the input end of the inner ring spindle component is fixedly connected with the output end of the inner ring rotation excitation component, and the output end of the inner ring spindle component is fixedly connected with the front end of the inner ring connecting shaft; the tail end of the inner ring connecting shaft is fixedly arranged on an inner ring of the rod end joint bearing;
the outer ring driving component and the inner ring driving component comprise driving motors, couplers and connecting shafts, and the driving motors are fixed on the test base platform; the coupler fixedly connects the tail end of the output shaft of the driving motor with the front end of the connecting shaft; the tail end of the connecting shaft is fixedly connected with the outer ring rotation excitation component or the inner ring rotation excitation component;
the outer ring rotation excitation component and the inner ring rotation excitation component respectively comprise a main rotating disk, a connecting rod and a rotating block, a first through hole is formed in the center of the main rotating disk, and the main rotating disk is fixedly connected with the tail end of the connecting shaft through the first through hole; the front end of the connecting rod is hinged with the non-central position of the main rotating disc, and the rear end of the connecting rod is hinged with the upper part of the rotating block; the lower part of the rotating block is fixedly connected with the input end of the outer ring main shaft component or the inner ring main shaft component; the distance between the connecting position of the main rotating disc and the connecting shaft and the connecting position of the main rotating disc and the connecting rod is smaller than the distance between the connecting position of the rotating block and the connecting rod and the connecting position of the rotating block and the input end of the outer ring spindle unit or the inner ring spindle unit, the main rotating disc is circular, and the rotating block is sector;
the rod end rotating support component comprises a left support component and a right support component which are respectively positioned at the left side and the right side of the long rod and are in contact connection with the long rod, and the left support component and the right support component respectively comprise a first support bearing, a second support bearing, a support shaft, a support base and an arc-shaped connecting plate; the inner rings of the first support bearing and the second support bearing are fixedly connected with the support shaft; the supporting shaft is fixedly arranged on the supporting base; one side surface of the arc-shaped connecting plate is fixedly connected with the outside of the long rod, and the other side surface of the arc-shaped connecting plate is in contact connection with the outer rings of the first supporting bearing and the second supporting bearing.
2. The testing machine for testing the synchronous rotation of the inner ring and the outer ring of the long rod-end joint bearing of claim 1, wherein the outer ring rotation excitation device further comprises a rod end connecting component, and the output end of the outer ring spindle component is fixedly connected with the tail end of the long rod through the rod end connecting component.
3. The testing machine for testing the synchronous rotation of the inner ring and the outer ring of the long rod-end joint bearing according to claim 1, wherein the inner ring rotation excitation device further comprises an inner ring connecting member, and the output end of the inner ring spindle member is fixedly connected with the front end of the inner ring connecting shaft through the inner ring connecting member.
4. The testing machine for testing the synchronous rotation of the inner ring and the outer ring of the long rod-end joint bearing of claim 1, wherein the driving motor is a variable frequency motor.
5. The machine for testing the synchronous rotation of the inner ring and the outer ring of the long rod-like rod end joint bearing according to claim 1, wherein the outer ring spindle unit and the inner ring spindle unit each comprise a spindle, a support bearing and a bearing seat, and wherein:
the front end of the main shaft is fixedly connected with the lower part of the rotating block, and the rear end of the main shaft is fixedly connected with the tail end of a long rod of the rod end joint bearing;
the supporting bearing is sleeved on the main shaft and is arranged on the bearing block;
the bottom of the bearing seat is arranged on the test base table.
6. The machine for testing the synchronous rotation of the inner ring and the outer ring of the long rod-like rod end joint bearing according to claim 5, wherein each of the outer ring spindle unit and the inner ring spindle unit comprises at least two of the support bearing and a bearing seat.
7. The machine for testing the synchronous rotation of the inner ring and the outer ring of the long rod-end joint bearing according to claim 1, wherein the outer ring rotation actuator comprises one or more rod-end rotation support members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010443490.8A CN111721532B (en) | 2020-05-22 | 2020-05-22 | Synchronous rotation testing machine for inner ring and outer ring of long-rod-end joint bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN101949773A (en) * | 2010-09-09 | 2011-01-19 | 河南科技大学 | Compound swinging type joint bearing testing machine |
| CN103323241A (en) * | 2013-05-22 | 2013-09-25 | 河南科技大学 | Composite swing type joint bearing service life testing machine |
| EP2706250A1 (en) * | 2012-09-06 | 2014-03-12 | Aktiebolaget SKF | Method for monitoring a roller bearing and roller bearing |
| CN104236772A (en) * | 2014-08-26 | 2014-12-24 | 中国直升机设计研究所 | Knuckle bearing starting torque measurement device and measurement method |
| CN104849048A (en) * | 2015-05-14 | 2015-08-19 | 台州科锦轴承有限公司 | Dynamic performance testing machine of joint bearing and transmission shaft rotation drive unit thereof |
| CN106769038A (en) * | 2016-12-12 | 2017-05-31 | 长春机械科学研究院有限公司 | One kind combination loading movable joint bearing tester |
| WO2020034338A1 (en) * | 2018-08-13 | 2020-02-20 | 浙江优特轴承有限公司 | Bearing dynamic characteristics testing machine |
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| CN103383308B (en) * | 2013-07-22 | 2015-10-28 | 燕山大学 | To the heart four oscillating follower bicylindrical cam oscillating bearing high-speed tester (HST) |
| KR101579282B1 (en) * | 2014-07-23 | 2015-12-21 | 한국과학기술연구원 | Bearing Test appratus for testing durability of the bearing |
| CN205262746U (en) * | 2015-12-14 | 2016-05-25 | 上海联合滚动轴承有限公司 | Bearing testing machine |
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| CN101949773A (en) * | 2010-09-09 | 2011-01-19 | 河南科技大学 | Compound swinging type joint bearing testing machine |
| EP2706250A1 (en) * | 2012-09-06 | 2014-03-12 | Aktiebolaget SKF | Method for monitoring a roller bearing and roller bearing |
| CN103323241A (en) * | 2013-05-22 | 2013-09-25 | 河南科技大学 | Composite swing type joint bearing service life testing machine |
| CN104236772A (en) * | 2014-08-26 | 2014-12-24 | 中国直升机设计研究所 | Knuckle bearing starting torque measurement device and measurement method |
| CN104849048A (en) * | 2015-05-14 | 2015-08-19 | 台州科锦轴承有限公司 | Dynamic performance testing machine of joint bearing and transmission shaft rotation drive unit thereof |
| CN106769038A (en) * | 2016-12-12 | 2017-05-31 | 长春机械科学研究院有限公司 | One kind combination loading movable joint bearing tester |
| WO2020034338A1 (en) * | 2018-08-13 | 2020-02-20 | 浙江优特轴承有限公司 | Bearing dynamic characteristics testing machine |
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| CN111721532A (en) | 2020-09-29 |
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