Quick mounting testing machine for joint bearing of railway train bogie rod end

Abstract

The application discloses a kind of quick installation test machines for railway train bogie lever end joint bearing, including test table, setting on the test table bearing seat and the bearing axle of being movably set on bearing seat, the test table movably is provided with two groups of loading seat, the bearing axle is detachably provided with the fixed structure for quickly fixing external lever end joint bearing to be tested between any one loading seat, the loading structure for applying eccentric load to lever end joint bearing to be tested is provided on the loading seat, the test table is provided with test seat, the drive structure for driving bearing axle to move to make lever end joint bearing to be tested simulate actual swing working condition is provided on the test seat.The application solves the problems of traditional railway train bogie lever end joint bearing test equipment, such as inconvenient disassembly, low test efficiency and lack of multi-directional test.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rod end knuckle bearing test equipment, in particular to a quick installation test machine for rod end knuckle bearings of railway train bogies. BACKGROUND

[0002] In the field of railway transportation, the performance of rod end knuckle bearings for railway train bogies is directly related to the safety and stability of train operation. The traditional rod end knuckle bearing test equipment has many drawbacks. On the one hand, the operation of installing and disassembling the bearings to be tested is extremely cumbersome. Due to the lack of convenient and efficient fixing devices, it often needs to rely on various complex tools, which consumes a lot of manpower and time. The frequent disassembly and assembly process not only increases the labor intensity of the operators, but also easily causes damage to the bearings or equipment due to improper operation. On the other hand, the test efficiency is extremely low. The traditional equipment can usually only conduct single condition test and is difficult to simulate the complex and multi-directional stress state of the rod end knuckle bearings in the actual operation of the train. For example, when the train is turning, accelerating, decelerating and passing through different road conditions, the bearings will bear the eccentric load from all directions. The traditional equipment cannot fully simulate these working conditions, resulting in that the test results cannot accurately reflect the performance of the bearings in actual use. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a quick installation test machine for rod end knuckle bearings of railway train bogies to solve the problems of inconvenient disassembly and assembly, low test efficiency and lack of multi-directional test of the traditional rod end knuckle bearing test equipment for railway train bogies.

[0004] To achieve the above purpose, the present application provides a quick installation test machine for rod end knuckle bearings of railway train bogies, which comprises a test table, a bearing seat arranged on the test table and a bearing shaft movably arranged on the bearing seat. Two groups of loading seats are movably arranged on the test table. A fixing structure for quickly fixing the external rod end knuckle bearing to be tested is detachably arranged between the bearing shaft and any one of the loading seats. A loading structure for applying eccentric load to the rod end knuckle bearing to be tested is arranged on the loading seat. A test seat is arranged on the test table. A driving structure for driving the bearing shaft to move so as to simulate the actual swing working condition of the rod end knuckle bearing to be tested is arranged on the test seat.

[0005] The above technical scheme has the advantages that: in the above technology, the detachable fixing structure is arranged between the bearing shaft and the loading seat, which greatly simplifies the mounting and dismounting process of the joint bearing at the rod end to be tested, the mounting and dismounting of the bearing can be quickly completed through the fixing structure, the operation time is greatly shortened, the labor intensity is reduced, only the use convenience of the test equipment is improved, the equipment wear and tear and the bearing damage risk caused by frequent dismounting are also reduced, which lays a foundation for efficient test work; in the above technology, two groups of loading seats are arranged and the loading directions of the two groups of loading seats are different, so that the bearing shaft can be connected with any one of the loading seats through the fixing structure, thereby realizing the switching of the two different loading directions, in the actual test process, different direction loads borne by the joint bearing at the rod end in different scenarios when the train runs can be simulated, for example, when the train runs straight, the bearing may bear an axial force in a certain direction, and when the train turns, a lateral force perpendicular to the axial force is borne, through the two groups of loading seats with different loading directions, the complex multi-direction stress state can be accurately simulated, compared with the traditional test equipment, the comprehensiveness and accuracy of the test are greatly improved, which provides a powerful means for deeper understanding of the bearing performance; the arrangement of the two groups of loading seats not only realizes multi-direction loading, but also simultaneously tests a plurality of bearings to be tested in different loading directions, compared with the traditional single-group test equipment, the test efficiency is significantly improved, the loading structure on the loading seat and the driving structure on the test seat for driving the bearing shaft to move can comprehensively simulate the complex working conditions of the joint bearing at the rod end in the actual operation of the train, through the multi-direction and comprehensive test simulation capability, the test result is more accurate and reliable; in the above technology, the driving structure can accurately control the movement of the bearing shaft, so that the joint bearing at the rod end to be tested can accurately simulate the actual swing working condition, in cooperation with the different direction biasing forces applied by the two groups of loading seats with different loading directions, the complex situation of the bearing bearing forces from all directions when the train runs can be truly restored, through the comprehensive simulation of these complex working conditions, the performance of the bearing in actual use can be more truly detected, potential problems and defects can be found.

[0006] The application further provides that: the two loading seats are provided with loading sleeves, the loading sleeves are provided with transmission shafts in the axial direction, the loading structure comprises loading cylinders arranged on the loading sleeves, the output ends of the loading cylinders are provided with swing heads, the swing heads are provided with swing grooves, the transmission shafts are swingingly arranged in the swing grooves, transmission pins are connected between the transmission shaft ends and the swing heads, the transmission pins are arranged in parallel with the top walls of the loading seats, and the transmission pins are arranged perpendicularly with the output ends of the loading cylinders, the transmission shaft ends are arranged in a fan shape with the transmission pin axes as the base points, and the transmission shaft starts are connected to the bearing shaft starts through the fixing structure.

[0007] The beneficial effects of the above technical scheme are: the loading sleeve arranged on the loading seat, the transmission shaft matched with the loading sleeve, the loading cylinder and other structures construct a precise and flexible loading system, the swinging head at the output end of the loading cylinder and the swinging groove are matched with the swinging arrangement of the transmission shaft end through the transmission pin, so that the loading cylinder can accurately transmit the force to the transmission shaft, when the loading cylinder works, the linear motion of the output end is converted into the fan-shaped swinging of the transmission shaft end with the transmission pin axis as the base point through the connecting structure of the swinging head and the transmission shaft, this unique transmission mode can accurately adjust the size and direction of the loading force according to the test requirements, realizes the precise loading of the rod end joint bearing in multiple directions and multiple angles, compared with the traditional simple loading mode, the precision and flexibility of the loading control are greatly improved, and a powerful guarantee is provided for simulating the complex and changeable load borne by the bearing in actual operation; the transmission shaft end is linked with the bearing shaft end through the fixed structure, so that the loading structure can accurately apply the simulated load to the rod end joint bearing to be tested, in the actual operation of the railway train, the rod end joint bearing will face various complex stress conditions, such as different directions and sizes of force borne under different driving speeds and bend radii, the loading structure can efficiently simulate these complex working conditions through the driving of the loading cylinder and the cooperative work of the swinging head and the transmission shaft, for example, when simulating the train turning, the loading cylinder can adjust the output force, the transmission shaft is swung through the swinging head, and the corresponding lateral force is applied to the bearing; when simulating the train acceleration or deceleration, the size and change rate of the loading force can be adjusted, and the stress state of the bearing in actual operation is truly restored, which provides an effective means for comprehensively and accurately detecting the bearing performance; the design of the loading structure improves the stability and reliability of the test process, the stable transmission connection between the loading cylinder and the swinging head and the transmission shaft reduces the energy loss and transmission error in the test process, ensures the accuracy and consistency of each loading, and since a variety of complex working conditions can be accurately simulated, a large amount of effective data can be obtained in one test without frequent replacement of test equipment or adjustment of test scheme, which not only shortens the test time of a single bearing, but also improves the reliability and comparability of the test results, helps to quickly screen out bearing products with excellent performance, speeds up the research and development and optimization process of the rod end joint bearing of the railway train bogie, and provides technical support for the safe and efficient operation of railway transportation.

[0008] The application further provides that the two loading seats are divided into a transverse seat and a longitudinal seat, and the axis direction of the transmission shaft of the transverse seat is arranged to be perpendicular to the axis direction of the transmission shaft of the longitudinal seat.

[0009] The beneficial effects of the above technical scheme are as follows: the two loading seats are divided into a transverse seat and a longitudinal seat, and the transmission shaft axis directions thereof are perpendicular to each other, which greatly enriches the loading dimension of the rod end joint bearing in the test, in the actual operation of the railway train, the force borne by the rod end joint bearing is not a single direction, but a complex multi-directional force combination, therefore, two groups of loading seats are designed, so that the test personnel can flexibly adjust the connection of the transverse seat and the bearing shaft or the connection of the longitudinal seat and the bearing shaft according to different research purposes and needs, so as to complete the switching and test of the two loading modes, and the size, loading sequence and loading time of the transverse seat and the longitudinal seat can also be adjusted, for example, when the fatigue life of the bearing under a specific working condition is researched, the vertical load when the train runs for a long time can be simulated through the longitudinal seat, and then the lateral force is intermittently applied through the transverse seat to simulate the situation of frequent turning of the train, so that a complex test scene close to the actual operation is constructed.

[0010] The application further provides that the fixing structure comprises a first fixing assembly, the first fixing assembly comprises a first connecting shaft for connecting with the transmission shaft of the transverse seat and a second connecting shaft for connecting with the bearing shaft, a connecting hole is formed in the axial direction of the bearing shaft at the beginning end thereof, a first connecting sleeve for connecting with the head of the rod end joint bearing to be tested is formed at the beginning end of the second connecting shaft, a placing sleeve for being placed into the connecting hole is sleeved at the end of the second connecting shaft, a first deformation groove is formed in the end face of the beginning end of the bearing shaft, the first deformation groove extends to the outer peripheral wall of the beginning end of the bearing shaft at both ends and is in communication with the connecting hole, a locking hole is formed in the outer peripheral wall of the beginning end of the bearing shaft, the locking hole is arranged in a vertical position relative to the first deformation groove and penetrates through the first deformation groove, a locking bolt is threadedly connected in the locking hole, the locking bolt is used for deforming the first deformation groove and reducing the width and diameter of the first deformation groove so that the inner peripheral wall of the connecting hole presses the outer peripheral wall of the placing sleeve, an anti-loosening thread is formed in the outer peripheral wall of the end of the second connecting shaft, a second deformation groove is formed in the placing sleeve along the length direction thereof, the second deformation groove is used for deforming the placing sleeve when the inner peripheral wall of the connecting hole extrudes the outer peripheral wall of the placing sleeve so that the inner peripheral wall of the placing sleeve presses the anti-loosening thread, a mounting head is arranged at the beginning end of the first connecting shaft, a mounting hole is formed in the mounting head for connecting with the rod of the rod end joint bearing to be tested, and the end of the first connecting shaft is detachably and coaxially connected with the transmission shaft.

[0011] The technical scheme has the beneficial effects that: the first fixing assembly greatly simplifies the installation process of the to-be-tested rod end knuckle bearing, the first connecting sleeve at the beginning end of the second connecting shaft can be quickly connected and matched with the head of the to-be-tested rod end knuckle bearing, the operation is simple and direct, meanwhile, the insertion sleeve at the end of the second connecting shaft can be conveniently inserted into the connecting hole at the beginning end of the bearing shaft, without the need for complex centering and positioning steps, and the first deformation groove, the locking hole and the locking bolt matched therewith on the bearing shaft enable an operator to only need to tighten the locking bolt, so that the inner peripheral wall of the connecting hole can be pressed and fixed to the outer peripheral wall of the insertion sleeve by using the deformation of the first deformation groove, the connection between the bearing shaft and the second connecting shaft is quickly completed, the entire installation process does not need to use too many complex tools, the installation time is significantly shortened, the use efficiency of the test equipment is improved, and great convenience is provided for the working scene of frequent replacement of test samples; when the locking bolt is tightened, the first deformation groove is deformed, the width diameter is reduced, the inner peripheral wall of the connecting hole is tightly pressed on the outer peripheral wall of the insertion sleeve, strong radial holding force is provided, relative displacement between the second connecting shaft and the bearing shaft is effectively prevented, meanwhile, the second deformation groove provided on the insertion sleeve in the length direction can drive the insertion sleeve to deform when the inner peripheral wall of the connecting hole extrudes the outer peripheral wall of the insertion sleeve, so that the inner peripheral wall of the insertion sleeve presses the anti-loosening thread on the outer peripheral wall at the end of the second connecting shaft, the connection between the second connecting shaft and the bearing shaft is ensured to be firm through the double fastening mechanism from the radial and circumferential directions, connection loosening caused by factors such as vibration and impact during the test is avoided, the accuracy and reliability of the test are ensured, a stable connection basis for simulating the stress of the rod end knuckle bearing under actual working conditions is provided; after the test is completed, the locking bolt only needs to be loosened, the first deformation groove returns to the original state, the pressing force of the inner peripheral wall of the connecting hole to the insertion sleeve disappears, the second connecting shaft can be easily detached from the bearing shaft, meanwhile, since the first connecting shaft and the transmission shaft are detachably and coaxially connected, the components of the entire fixing structure are easy to operate when maintenance or replacement is needed, the design is convenient for disassembly and maintenance, the maintenance difficulty and time cost of the equipment are reduced, the service life of the test equipment is prolonged, the operation efficiency of the equipment is improved, and the continuous and smooth progress of the test work is ensured.

[0012] The installation head is composed of a split structure and is divided into a left clamping ring and a right clamping ring, the left clamping ring and the right clamping ring are combined in a ring shape and are connected by bolts, a fastening sleeve is arranged in the installation hole, the fastening sleeve penetrates a fastening hole for connecting and matching with the rod of the to-be-tested rod end knuckle bearing, the inner peripheral wall of the fastening hole is relatively inclined and is formed with a taper surface for closely matching with the outer peripheral wall of the rod of the to-be-tested rod end knuckle bearing, the inner peripheral wall of the left clamping ring and the inner peripheral wall of the right clamping ring are both annularly provided with a fastening groove, and the outer peripheral wall of the fastening sleeve is annularly provided with a fastening ring, the fastening ring is respectively connected and matched with the two fastening grooves.

[0013] The technical scheme has the beneficial effects that: the mounting head adopts a split structure, which is composed of a left clamping ring and a right clamping ring connected by bolts, so that when the joint bearing at the end of the test rod is mounted, the operator does not need to forcibly pass the bearing rod through the mounting hole from one end, but only needs to place the left clamping ring and the right clamping ring on both sides of the bearing rod, and then tighten the bolts to complete the assembly of the mounting head and the bearing rod. Compared with the traditional integrated mounting head, the split structure avoids the difficulty in installation caused by the excessive length of the bearing rod or the limited installation space, significantly improves the flexibility and convenience of the installation process, further shortens the installation time of the test sample, and improves the working efficiency of the test equipment. The fastening sleeve provided in the mounting hole has an inner wall of the fastening hole in the form of a tapered surface that is relatively inclined, which can tightly fit the outer peripheral wall of the rod of the joint bearing at the end of the test rod. When the mounting head is fixed to the bearing rod, as the bolts are tightened, the left clamping ring and the right clamping ring gradually approach each other, the fastening sleeve is extruded, the fit between the tapered surface and the outer peripheral wall of the bearing rod is more tightly, a strong friction force is generated, and the axial or radial displacement of the bearing rod during the test is effectively prevented. At the same time, the fastening groove in the inner wall of the left clamping ring and the right clamping ring is in clamping engagement with the fastening ring on the outer wall of the fastening sleeve, further enhancing the connection stability between the fastening sleeve and the mounting head, and ensuring that the entire fixing structure can still reliably fix the bearing under complex test conditions, providing a solid guarantee for accurately simulating the actual stress of the bearing.

[0014] The application further provides that: the fixing structure further comprises a second fixing assembly, the second fixing assembly comprises a third connecting shaft and a fourth connecting shaft, the third connecting shaft is provided with a matching hole at the starting end for connecting and matching with the head of the joint bearing at the end of the test rod, and the third connecting shaft is detachably and coaxially connected to the transmission shaft of the longitudinal seat at the end. The fourth connecting shaft is provided with a through hole at the starting end along the axis direction for connecting and matching with the rod of the joint bearing at the end of the test rod, and the fourth connecting shaft is in plug-in engagement with the connecting hole at the end. The third connecting shaft and the fourth connecting shaft are arranged in a perpendicular manner.

[0015] The beneficial effects of the above technical solution are: the second fixing assembly is arranged to connect the longitudinal seat and the bearing shaft, that is, the matching hole at the beginning of the third connecting shaft is connected with the bearing head, and the end is detachably and coaxially connected with the transmission shaft of the longitudinal seat, the through hole at the beginning of the fourth connecting shaft is matched with the bearing stem, and the end is inserted and matched with the connecting hole of the bearing shaft, when facing the rod end joint bearing with different structural characteristics or test requirements, the operator can flexibly select the appropriate fixing assembly, greatly enrich the fixing mode, improve the adaptability of the test equipment to various bearings, and ensure stable and reliable fixation in different test scenes; since two different fixing assemblies are provided, the test equipment does not need to be greatly modified when testing rod end joint bearings of different specifications and types, and the first fixing assembly can be used to quickly connect the horizontal seat and the bearing shaft in different loading directions, and the second fixing assembly can be used to quickly connect the longitudinal seat and the bearing shaft, so as to realize the quick switching of the loading direction, the efficient switching mechanism reduces the test preparation time and improves the test efficiency; in order to improve the linkage efficiency, the first connecting sleeve can be arranged in the matching hole to realize efficient connection of the matching hole, the third connecting shaft and the bearing head.

[0016] The test bench is further provided with: adjustment grooves are arranged at positions corresponding to the two loading seats on the test bench, the two adjustment grooves are arranged in opposite vertical directions, the adjustment grooves are arranged in opposite vertical directions with the opening direction of the transmission shaft of the corresponding loading seat, a transmission screw is arranged at the bottom of the loading seat, a sliding seat is arranged on the transmission screw along the length direction of the transmission screw, the sliding seat is connected with the bottom of the loading seat, the transmission screw is movably arranged in the adjustment groove, and the end of the transmission screw is arranged to pass through the test bench and is provided with an adjustment hand wheel for an external operator to rotate to make the transmission screw rotate synchronously, so that the sliding seat slides along the length direction of the transmission screw and drives the loading seat to move on the test bench.

[0017] The above technical scheme has the advantages that: the relative vertical adjusting grooves corresponding to the positions of the two loading seats on the test bench, in combination with the design of the transmission screw rod, the sliding seat and the adjusting hand wheel at the bottom of the loading seat, bring high flexibility to the test process, and the operator can easily adjust the position of the loading seat on the test bench by rotating the adjusting hand wheel, and when different types of rod end joint bearing tests are carried out, the relative position between the loading seat and the bearing shaft can be flexibly changed according to the specifications, sizes and test requirements of the bearing, for example, for a bearing with a larger size, the loading seat can be appropriately moved outward to ensure sufficient space for installation and fixation, and for some special tests requiring specific loading angles, the loading seat position can also be adjusted to achieve the specific loading angles; the relative vertical setting of the adjusting grooves and the loading seat transmission shaft is very important, when the actual working conditions of the rod end joint bearing of the railway train bogie are simulated, the force borne by the bearing is not only complex in direction, but also the action point will change due to the change of the train running state, by adjusting the position of the loading seat in the adjusting groove, the action point and direction of the loading force can be accurately adjusted, for example, when the train passes through a curve, the position of the loading seat can be adjusted according to the curve radius and train speed and other parameters, so that the loading force can more accurately simulate the lateral force and eccentric force borne by the bearing in the actual curve driving, such accurate simulation capability helps to obtain more real and reliable test data, and deeply researches the performance of the bearing under complex working conditions, and provides strong support for the optimization design of the railway train bogie; the setting of the adjusting hand wheel makes the adjusting operation of the loading seat position simple and easy to understand, even non-professional operators can quickly get started, and the operator only needs to rotate the adjusting hand wheel to easily realize the displacement of the loading seat without the need for complex tools or professional skills; the transmission mode and structure of the transmission screw rod in the above technology are the prior art, and therefore the functions and structures thereof will not be described in detail; in the above technology, a plurality of linkage sliding grooves can be set on the test bench corresponding to the positions of the adjusting grooves along the vertical direction of the adjusting grooves according to actual requirements, and the sliding key blocks can be provided at the bottom of the loading seat corresponding to each linkage sliding groove to cooperate with the sliding of the loading seat, and in order to improve the adjusting efficiency, the adjusting hand wheel can be replaced by a motor-driven device according to actual requirements, so as to improve the adjusting efficiency.

[0018] The application further provides that: the driving structure comprises a high-frequency swing cylinder arranged on the test seat, and the output end of the high-frequency swing cylinder is coaxially arranged with the bearing shaft and connected with the bearing shaft through a shaft coupling.

[0019] The beneficial effects of the above technical scheme are: in the above technology, the high-frequency swing cylinder arranged on the test seat is coaxially connected with the load bearing shaft through the shaft coupling, which can accurately simulate the swing working condition of the bogie rod end joint bearing of the railway train in the actual operation, the high-frequency swing cylinder can provide stable and frequency-controllable swing output, the load bearing shaft drives the rod end joint bearing to be tested to swing back and forth at high frequency, and the swing state of the bearing in the train driving process due to track irregularity, turning and other factors is highly restored, the high-frequency swing cylinder is coaxially connected with the load bearing shaft through the shaft coupling, so that the stability and accuracy of power transmission are ensured, the shaft coupling can effectively compensate the slight deviation between the two shafts, vibration and additional stress caused by the eccentricity of the shafts are avoided, and it is ensured that the load bearing shaft can swing smoothly and accurately according to the output of the high-frequency swing cylinder.

[0020] The test bench is further provided with a sinking groove corresponding to the position of the load bearing seat, and the bottom of the load bearing seat is partially arranged in the sinking groove.

[0021] The beneficial effects of the above technical scheme are: in the above technology, the test bench is provided with a sinking groove corresponding to the position of the load bearing seat, and the bottom of the load bearing seat is partially arranged in the sinking groove, which significantly enhances the overall stability of the equipment. During the test, when the load bearing shaft drives the rod end joint bearing to be tested to swing, and the loading seat applies a bias load to the bearing, the equipment will be subjected to a large external force and vibration. The existence of the sinking groove lowers the center of gravity of the load bearing seat, and the nested structure formed between the sinking groove and the bottom of the load bearing seat limits the horizontal displacement of the load bearing seat.

[0022] The load bearing seat is further provided with a load bearing hole for the load bearing shaft to pass through, and two groups of thrust aligning roller bearings are connected between the inner wall of the load bearing hole and the outer wall of the load bearing shaft.

[0023] The beneficial effects of the above technical scheme are: in the above technology, the two groups of thrust aligning roller bearings connected between the inner wall of the load bearing hole and the outer wall of the load bearing shaft are arranged in opposite and coaxial positions, which provides extremely stable and reliable support for the load bearing shaft. During the test, the load bearing shaft needs to drive the rod end joint bearing to be tested to swing, and also needs to withstand the bias load applied by the loading seat. The thrust aligning roller bearing has high axial and radial bearing capacity, can effectively bear these complex loads, and ensures the stability of the load bearing shaft during operation. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a three-dimensional view of the cooperation state of the test seat and the transverse seat in the present application;

[0025] Figure 2 It is a partial sectional view of Figure 1 ;

[0026] Figure 3 is a three-dimensional view of the combined state of the first fixed structure and the rod end joint bearing to be tested in the present application;

[0027] Figure 4 is a sectional view of Figure 3 ;

[0028] Figure 5 is a three-dimensional view of the combined state of the test seat and the longitudinal seat in the present application;

[0029] Figure 6 is a sectional view of Figure 5 ;

[0030] Figure 7 is a three-dimensional view of the combined state of the second fixed structure and the rod end joint bearing to be tested in the present application;

[0031] Figure 8 is a sectional view of Figure 7 . DETAILED DESCRIPTION

[0032] The application provides a quick installation testing machine for a railway train bogie rod end knuckle bearing, which comprises a testing table 1, a bearing seat 2 arranged on the testing table 1 and a bearing shaft 21 movably arranged on the bearing seat 2, two groups of loading seats 3 are movably arranged on the testing table 1, a fixing structure for quickly fixing an external rod end knuckle bearing to be tested is detachably arranged between the bearing shaft 21 and any one of the loading seats 3, a loading structure for applying a biasing force to the rod end knuckle bearing to be tested is arranged on the loading seat 3, a testing seat 4 is arranged on the testing table 1, a driving structure for driving the bearing shaft 21 to move so that the rod end knuckle bearing to be tested can simulate an actual swing working condition is arranged on the testing seat 4, a loading sleeve 31 is arranged on each of the two loading seats 3, a transmission shaft 32 is arranged on the loading sleeve 31 along the axial direction of the loading sleeve 31, the loading structure comprises a loading cylinder 33 arranged on the loading sleeve 31, a swing head 331 is arranged at the output end of the loading cylinder 33, a swing groove 332 is formed in the swing head 331, the transmission shaft 32 is swingably arranged in the swing groove 332 at the end of the transmission shaft 32, and a transmission pin 333 is connected between the end of the transmission shaft 32 and the swing head 331, the transmission pin 333 is arranged in parallel with the top wall of the loading seat 3, and the transmission pin 333 is arranged perpendicularly to the output end of the loading cylinder 33, the end of the transmission shaft 32 is arranged in a fan shape with the axis of the transmission pin 333 as the base point, the beginning of the transmission shaft 32 is connected to the beginning of the bearing shaft 21 through the fixing structure, the two loading seats 3 are divided into a transverse seat 11 and a longitudinal seat 12, the axial direction of the transmission shaft 32 of the transverse seat 11 is arranged perpendicularly to the axial direction of the transmission shaft 32 of the longitudinal seat 12, the fixing structure comprises a first fixing assembly, the first fixing assembly comprises a first connecting shaft 111 for connecting the transmission shaft 32 of the transverse seat 11 and a second connecting shaft 22 for connecting the bearing shaft 21, a connecting hole 211 is formed in the bearing shaft 21 along the axial direction of the bearing shaft 21, a first connecting sleeve 221 for connecting the head of the rod end knuckle bearing to be tested is arranged at the beginning of the second connecting shaft 22, a placing sleeve 23 for being placed in the connecting hole 211 is arranged at the end of the second connecting shaft 22, a first deformation groove 212 is formed in the end face of the beginning of the bearing shaft 21, the two ends of the first deformation groove 212 extend to the outer peripheral wall of the beginning of the bearing shaft 21, and the first deformation groove 212 is in communication with the connecting hole 211, a locking hole 213 is formed in the outer peripheral wall of the beginning of the bearing shaft 21, the locking hole 213 is arranged perpendicularly to the first deformation groove 212 and penetrates through the first deformation groove 212, a locking bolt is threadedly connected in the locking hole 213, the locking bolt is used for deforming the first deformation groove 212 and reducing the width and diameter of the first deformation groove 212 so that the inner peripheral wall of the connecting hole 211 presses the outer peripheral wall of the placing sleeve 23, and an anti-loosening thread 222 is formed in the outer peripheral wall of the end of the second connecting shaft 22.The implant sleeve 23 is provided with a second deformation groove 231 along its length direction, which is used to drive the implant sleeve 23 to deform when the outer peripheral wall of the implant sleeve 23 is extruded by the inner peripheral wall of the connecting hole 211, so that the inner peripheral wall of the implant sleeve 23 is pressed to the anti-loose thread 222. The first connecting shaft 111 is provided with a mounting head 112 at the beginning end, and the mounting head 112 is provided with a mounting hole 113 for connecting and matching the rod part of the joint bearing at the rod end to be tested. The end of the first connecting shaft 111 is detachably and coaxially connected with the transmission shaft 32. The mounting head 112 is composed of a split structure and is divided into a left clamping ring 114 and a right clamping ring 115. The left clamping ring 114 and the right clamping ring 115 are combined in a ring shape and are connected by bolts between the left clamping ring 114 and the right clamping ring 115. The mounting hole 113 is provided with a fastening sleeve 116. The fastening sleeve 116 penetrates a fastening hole 117 for connecting and matching the rod part of the joint bearing at the rod end to be tested. The inner peripheral wall of the fastening hole 117 is relatively inclined and is formed with a tapered surface for closely matching the outer peripheral wall of the rod part of the joint bearing at the rod end to be tested. The inner peripheral wall of the left clamping ring 114 and the inner peripheral wall of the right clamping ring 115 are both annularly provided with a fastening groove 118. The outer peripheral wall of the fastening sleeve 116 is annularly provided with a fastening ring 119. The fastening ring 119 is respectively and annularly connected and matched with the two fastening grooves 118. The fixing structure further comprises a second fixing assembly. The second fixing assembly comprises a third connecting shaft 121 and a fourth connecting shaft 24. The third connecting shaft 121 is provided with a matching hole 122 at the beginning end for connecting and matching the head part of the joint bearing at the rod end to be tested. The end of the third connecting shaft 121 is detachably and coaxially connected with the transmission shaft 32 of the longitudinal seat 12. The fourth connecting shaft 24 is provided with a through hole 241 along its axis direction for connecting and matching the rod part of the joint bearing at the rod end to be tested. The end of the fourth connecting shaft 24 is detachably and coaxially connected with the connecting hole 211. The third connecting shaft 121 and the fourth connecting shaft 24 are relatively perpendicular. The test bench 1 is provided with an adjusting groove 13 corresponding to the positions of the two loading seats 3. The two adjusting grooves 13 are relatively perpendicular. The adjusting groove 13 and the transmission shaft 32 of the corresponding loading seat 3 are relatively perpendicular. The bottom of the loading seat 3 is provided with a transmission screw 14. The transmission screw 14 is provided with a sliding seat 15 along the length direction of the transmission screw 14. The sliding seat 15 is connected with the bottom of the loading seat 3. The transmission screw 14 is movably arranged in the adjusting groove 13. The end of the transmission screw 14 penetrates the test bench 1 and is provided with an adjusting hand wheel 16 for an external operator to rotate to drive the transmission screw 14 to rotate synchronously, so that the sliding seat 15 slides along the length direction of the transmission screw 14 and drives the loading seat 3 to move on the test bench 1. The driving structure comprises a high-frequency swing cylinder 41 arranged on the test seat 4. The output end of the high-frequency swing cylinder 41 is coaxially arranged with the bearing shaft 21, and a shaft coupling 42 is connected between the output end of the high-frequency swing cylinder 41 and the bearing shaft 21. The test bench 1 is provided with a sinking groove 17 corresponding to the position of the bearing seat 2.The bottom part of the bearing seat 2 is arranged in the sinking groove 17, the bearing seat 2 is provided with a bearing hole 25 for the bearing shaft 21, two groups of thrust self-aligning roller bearings 26 are connected between the inner circumferential wall of the bearing hole 25 and the outer circumferential wall of the bearing shaft 21, and the two groups of thrust self-aligning roller bearings 26 are oppositely and coaxially arranged.

[0033] The linkage key groove in the above-mentioned technology is 5 in the attached drawings, the sliding key block is 51, the head of the key bearing of the rod end to be tested is 6 in the attached drawings, and the rod part is 61 in the attached drawings.

[0034] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A quick installation testing machine for a railway train bogie rod end knuckle bearing, characterized by: The utility model provides a test bench, the bearing seat of setting on test bench and the bearing axle of activity setting on bearing seat, activity setting have two groups loading seat on test bench, the quick fixing structure for fixed outer world pending test rod end joint bearing is detachably arranged between bearing axle and any one loading seat, set up the loading structure for the loading seat and is used for to pending test rod end joint bearing exert the bias load force of action, set up the test seat on test bench, set up the drive structure for driving bearing axle activity to make pending test rod end joint bearing simulate actual swing working condition on test seat, set up the loading sleeve on two loading seat, set up the transmission shaft along its axial direction on loading sleeve, the loading structure includes setting on loading sleeve loading cylinder, the swing head is set up to loading cylinder output, swing groove is opened to swing head, transmission shaft end swing sets up in swing groove and transmission shaft end is connected with swing head between transmission shaft end and swing head transmission pin, transmission pin is opposite parallelly arranged with loading seat top wall and transmission pin is opposite vertically arranged with loading cylinder output, transmission shaft end is arranged in fan shape swing with transmission pin axial line as base point, transmission shaft beginning end is through fixed structure and bearing axle beginning end linkage cooperation arrangement, two loading seat divides into horizontal seat and longitudinal seat, the axial direction of transmission shaft of horizontal seat is opposite vertically arranged with the axial direction of transmission shaft of longitudinal seat, the fixed structure includes first fixed assembly, first fixed assembly includes first connecting shaft for connecting with transmission shaft of horizontal seat and second connecting shaft for cooperating with bearing axle, the connecting hole is opened to bearing axle beginning end along its axial direction, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connecting sleeve for connecting with the head of pending test rod end joint bearing is opened to second connecting shaft beginning end, the first connectingThe fourth connecting shaft has a through hole penetrating along the axis direction of the fourth connecting shaft, which is used for connecting and matching with the rod part of the joint bearing of the rod end to be tested. The fourth connecting shaft has a terminal end which is inserted and matched with the connecting hole. The third connecting shaft is arranged perpendicularly to the fourth connecting shaft.

2. The quick installation tester for the journal bearing of a railway vehicle bogie according to claim 1, characterized in that: The mounting head is composed of a split structure and is divided into a left clamping ring and a right clamping ring, the left clamping ring and the right clamping ring are combined in a ring shape and are connected by bolts, a fastening sleeve is arranged in the mounting hole, the fastening sleeve penetrates a fastening hole for connecting and matching with the rod part of the joint bearing at the rod end to be tested, the inner wall of the fastening hole is oppositely inclined and is formed with a taper surface for closely matching with the outer wall of the rod part of the joint bearing at the rod end to be tested, the inner wall of the left clamping ring and the inner wall of the right clamping ring are both annularly provided with a fastening groove, and the outer wall of the fastening sleeve is annularly provided with a fastening ring, which is respectively and annularly connected with the two fastening grooves.

3. The quick installation tester for the journal bearing of a railway vehicle bogie as set forth in claim 1, wherein: The test bench is provided with adjusting grooves corresponding to the positions of the two loading seats, the two adjusting grooves are oppositely arranged vertically, the adjusting grooves are oppositely arranged vertically with the opening directions of the transmission shafts of the corresponding loading seats, the bottom of the loading seat is provided with a transmission screw rod, the transmission screw rod is provided with a sliding seat along the length direction of the transmission screw rod, the sliding seat is connected with the bottom of the loading seat, the transmission screw rod is movably arranged in the adjusting groove, and the end of the transmission screw rod is arranged outside the test bench and is provided with an adjusting hand wheel for an external operator to rotate to make the transmission screw rod rotate synchronously, so that the sliding seat slides along the length direction of the transmission screw rod and drives the loading seat to move on the test bench.

4. The quick installation tester for a railway truck equalizer rod end knuckle bearing of claim 1 wherein: The driving structure comprises a high-frequency swing cylinder arranged on the test seat, the output end of the high-frequency swing cylinder is coaxially arranged with the bearing shaft, and a shaft coupling is connected between the output end of the high-frequency swing cylinder and the bearing shaft.

5. A quick installation testing machine for a railway train bogie rod end knuckle bearing according to claim 1, characterized in that: The test bench is provided with a sinking groove corresponding to the position of the bearing seat, and the bottom of the bearing seat is partially arranged in the sinking groove.

6. A quick installation testing machine for a railway train bogie rod end knuckle bearing according to claim 1, characterized in that: The bearing seat is provided with a bearing hole for the bearing shaft to pass through, and two groups of thrust angular contact ball bearings are connected between the inner wall of the bearing hole and the outer wall of the bearing shaft, and the two groups of thrust angular contact ball bearings are oppositely and coaxially arranged.

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