CN209764399U - Locomotive cab apron system test platform - Google Patents
Locomotive cab apron system test platform Download PDFInfo
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- CN209764399U CN209764399U CN201920513571.3U CN201920513571U CN209764399U CN 209764399 U CN209764399 U CN 209764399U CN 201920513571 U CN201920513571 U CN 201920513571U CN 209764399 U CN209764399 U CN 209764399U
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- 230000001360 synchronised effect Effects 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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Abstract
The test platform for the locomotive cab apron system comprises a horizontally arranged rack, three-way simulated motion devices and a control system, wherein the three-way simulated motion devices are arranged on the rack and used for driving the locomotive cab apron to move, the number of the three-way simulated motion devices is two, the three-way simulated motion devices are arranged on the rack relatively, each three-way simulated motion device is horizontally fixed with one locomotive cab apron, each three-way simulated motion device comprises a rotary telescopic component and a vertical vibration component, the rotary telescopic component is used for mounting the locomotive cab apron and driving the locomotive cab apron to horizontally stretch and rotate, the vertical vibration component is used for driving the locomotive cab apron to vibrate vertically, and the control system coordinately controls the action of the three-way simulated motion devices and acquires dynamic test data. The utility model discloses the dynamic change process of locomotive cab apron under simulation locomotive actual operating mode uses for the installation of locomotive cab apron system and provides true effectual test data to carry out reliability analysis research to locomotive cab apron system, provide effective test foundation for improving locomotive cab apron system.
Description
Technical Field
The utility model relates to a locomotive cab apron system test platform, the dynamic change process of locomotive cab apron system under the simulation locomotive running state detects whether locomotive cab apron system satisfies the user demand.
Background
The through passage is an important part for realizing the connection and the communication between two carriages of the railway vehicle and can be divided into an integral type and a butt joint type. The cab apron system is an important component of the through passage and plays a role in connection and personnel passing. The cab apron system of the locomotive should be safe and reliable, can ensure that personnel pass through smoothly, and each mechanism should move flexibly to meet the requirement of a vehicle operation curve.
in the prior art, the common cab apron systems of the locomotive are mainly of a lap joint type and a rib type. Compared with the lap joint type, the rib type can meet the working condition requirement of large dislocation of small curves of the rail vehicles, and abnormal sound and interference phenomena are not easy to occur. The rib-type cab apron system is characterized in that at least two cab apron are arranged to form a cab apron system, three driving states of a straight line, a curve and a curve exist in the driving process of a locomotive, the movement of the cab apron is horizontal movement, rotation and vertical vibration, the cab apron can move in several directions at the same time, the mutual interference between adjacent cab apron and the interference of other adjacent parts in a through passage can influence the stability and reliability of the locomotive cab apron system in the driving process of the locomotive, particularly the stability and reliability of the locomotive cab apron system in the braking process of the locomotive, and the stability of the through passage and the riding comfort are influenced directly. Therefore, the dynamic change of the cab apron system of the locomotive in the running process of the locomotive is simulated to master the motion characteristics of the cab apron of the locomotive in various running states, and whether the cab apron system of the locomotive can meet various performance requirements in the running process of the locomotive is quite necessary to judge.
In order to improve the reliability of each part of the locomotive, the prior art that the locomotive part is loaded by simulating the actual operation condition is more, for example:
CN 107655772 a, an all-directional fatigue test device for vehicle connectors, which transfers the acting force of a hydraulic cylinder to the vehicle connectors through a universal joint, and performs all-directional three-degree-of-freedom fatigue test.
CN 103900834A, a method and a device for testing fatigue of a large part of a vehicle body structure of a railway vehicle, which simulate the test working condition of the vehicle body structure to be tested in the fatigue state of the whole vehicle and provide powerful basis for the safety and reliability of the vehicle fatigue.
CN 108896327 a discloses a longitudinal force loading test system and a loading method in a rail vehicle body, which can realize longitudinal force test loading in the rail vehicle body.
CN 103630380A, a bogie loading device and loading method for vehicle body strength test can better simulate the actual load of the bogie, and further ensure the accuracy and reliability of test data, so that designers can better know the performance of the vehicle body, and better guarantee is provided for improving the quality of the vehicle.
CN 104568478A, a dynamic loading device for railway locomotive driving parts, which effectively dynamically loads the driving parts installed in a bogie and simulates the working environment of vibration and stress of the driving parts.
But still not to the analogue test device to locomotive cab apron system among the locomotive through passage among the prior art, the utility model aims at researching and developing a locomotive cab apron system test device, can simulate under the locomotive running state, the dynamic change process of locomotive cab apron system to whether detect locomotive cab apron system and satisfy the user demand.
SUMMERY OF THE UTILITY MODEL
The utility model provides a locomotive cab apron system test platform simulates the dynamic change process of locomotive cab apron under the locomotive actual operating mode, uses for the installation of locomotive cab apron system and provides true effectual test data to carry out reliability analysis research to locomotive cab apron system, for further improving the locomotive cab apron system and providing effective test foundation, improve the reliability and the stability that the locomotive link up the way.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
The test platform is characterized in that the three-way analog motion device comprises a rotary telescopic assembly and a vertical vibration assembly, the rotary telescopic assembly is used for mounting the locomotive cab apron and driving the locomotive cab apron to horizontally stretch and rotate, the vertical vibration assembly is used for driving the locomotive cab apron to vertically vibrate, and the control system coordinately controls the action of the three-way analog motion device and acquires dynamic test data in the test process.
Preferably, the rotary telescopic assembly comprises a rotary assembly which is rotatably arranged on the rack and horizontally arranged, a fixed support which is arranged on the rotary assembly and is in sliding fit with the rotary assembly, a horizontal cylinder which is used for driving the fixed support to slide on the rotary assembly and a lead screw driving piece which is used for driving the rotary assembly to rotate on the rack, the cab apron of the locomotive is fixed on the fixed support, and the horizontal cylinder is fixed on the rotary assembly and the telescopic end of the horizontal cylinder is fixed with the fixed support.
Preferably, the rotating assembly comprises a rotating support and a supporting rolling ball, the supporting rolling ball is used for supporting the rotating support to be horizontally arranged on the rack, one end of the rotating support is rotatably connected with the rack, the other end of the rotating support is connected with a screw rod driving piece in a matched mode, a horizontal cylinder is fixed on the rotating support, the fixed support is arranged on the rotating support in a sliding matched mode, the screw rod driving piece drives the rotating support to rotate on the rack, and the supporting rolling ball rolls on the rack along with the movement of the rotating support.
Preferably, the lead screw driving piece including dress lead screw installing frame on the rack, dress and the electronic lead screw that drives through servo motor in the lead screw installing frame, the rotation support be connected through rotating the fitting piece and electronic lead screw-thread fit, rotate the fitting piece include with electronic lead screw thread fit's cooperation seat with rotatable dress movable sleeve on the cooperation seat, the movable sleeve overlaps on the horizon bar that rotates the support, and moves on the horizon bar along with the rotation that rotates the support.
Preferably, the rotating support on have the guide slot, the bottom of fixed bolster have with guide slot complex guide rail, the cross section of guide slot is "protruding" style of calligraphy, the cross section of guide rail also is "protruding" style of calligraphy, during guide rail both sides edge inserts the guide slot, the rack passes through fulcrum screw shaft and rotating support rotatable coupling of rotating, fulcrum screw shaft is rotated along vertical rotatable dress on the rack, fulcrum screw shaft and rotating support are fixed to pass the bar through-hole on the fixed bolster, the bar through-hole is parallel with the guide rail, fulcrum screw shaft of rotating moves in the bar through-hole along with the slip of guide rail, fulcrum screw shaft of rotating overlaps the stop nut who is used for restricting the fixed bolster to turn up.
Preferably, the rack on have along the mount table that can move about perpendicularly, rotate flexible subassembly dress on the mount table, vertical vibration subassembly includes along the vertical cylinder of vertical setting, the connecting rod swing arm subassembly of being connected with vertical cylinder, pivot and the coaxial arrangement in the epaxial cam of commentaries on classics of connecting rod swing arm subassembly connection, the quantity of pivot is two and the symmetry dress in the mount table below, cam and mount table contact, the flexible end and the connecting rod swing arm subassembly of vertical cylinder are connected, connecting rod swing arm subassembly drives the reciprocal rotation of pivot along with the motion of vertical cylinder, thereby drive the reciprocal rotation of cam, the mount table vibrates from top to bottom along with the reciprocal rotation of cam.
Preferably, the connecting rod swing arm assembly comprises a movable plate connected with the telescopic end of the vertical cylinder and horizontally arranged, connecting rods connected with the movable plate and symmetrically arranged on the left side and the right side of the movable plate, and swing arms hinged to the connecting rods, one end of each swing arm is hinged to the connecting rod, the other end of each swing arm is fixedly connected with the rotating shaft, and the movable plate reciprocates up and down along with the telescopic end of the vertical cylinder and drives the rotating shaft to rotate in a reciprocating mode through the connecting rods and the swing arms.
Preferably, the pivot on coaxially fix a plurality of evenly spaced cams, the supporting beam that the level setting just is located the mount table below has in the rack, vertical cylinder is fixed on supporting beam, the fly leaf is located supporting beam's below, the flexible end of vertical cylinder and connecting rod all pass supporting beam and are connected with the fly leaf, it has the rectangle through-hole that supplies the connecting rod to pass to open on the supporting beam, be fixed with along the lower guide cylinder of perpendicular setting on the supporting beam, have on the fly leaf with lower guide cylinder direction complex lower guide arm down, the guide cylinder is equipped with on the mount table, be fixed with on the rack with last guide cylinder direction complex upper guide arm, and down the quantity of guide cylinder and upper guide cylinder be four and all be the rectangular distribution.
Preferably, the rack on be equipped with the vertical screw rod that runs through the mount table, vertical screw rod on the cover have along with the flexible spring of the vibration of mount table, the mount table presses on the spring, screw cooperation suit thread bush on the vertical screw rod, the thread bush is located the mount table top, and the mount table is in vibration in-process and thread bush contactless.
The utility model has the advantages that:
1. The utility model discloses a locomotive cab apron system test platform comprises two three-way analog motion devices, the two three-way analog motion devices are arranged oppositely, so that the locomotive cab apron arranged on the platform is arranged oppositely, the dynamic change process of the locomotive cab apron under the actual operation working condition of the locomotive is simulated through the action of the three-way analog motion devices, wherein, the rotary telescopic component drives the locomotive cab apron to horizontally extend and rotate, the vertical vibration component drives the locomotive cab apron to vertically vibrate, the control system controls the three-way analog motion devices to act and collects the dynamic test data of the locomotive cab apron system in the test process, the comprehensive dynamic change of the horizontal extension, rotation and vertical vibration of the locomotive cab apron is realized, the dynamic change of the locomotive cab apron in the actual running process is equivalent to the dynamic change of the locomotive cab apron in the locomotive actual running process, the relative up-down dislocation of the two locomotive cab apron is, whether the horizontal expansion, the rotation angle, the vertical bearing and the axial compression of the locomotive cab apron meet the use requirements of the locomotive in the actual running process is detected, whether the locomotive cab apron system has internal and external interference phenomena in the dynamic running process of the locomotive is judged, real and effective test data are provided for the installation and the use of the locomotive cab apron system, so that the reliability analysis and the research of the locomotive cab apron system are conveniently carried out, an effective test basis is provided for further improving the locomotive cab apron system, and the reliability and the stability of a locomotive through passage are improved.
2. The flexible subassembly that rotates includes runner assembly, the fixed bolster, horizontal cylinder and lead screw driving piece, with the fixed locomotive cab apron of fixed bolster, it rotates to drive the runner assembly with the lead screw driving piece drive, thereby it rotates to drive the locomotive cab apron, promote the fixed bolster with horizontal cylinder and slide, thereby it is flexible around driving the locomotive cab apron, relative motion through the movable sleeve among the runner assembly and horizontal pole, realize rotating the radius change of in-process runner assembly, provide the rotational freedom degree for runner assembly, structural design is ingenious, the turned angle accuracy and the motion flexibility of the flexible subassembly of rotation are higher.
3. Vertical vibration subassembly includes vertical cylinder, connecting rod swing arm subassembly, pivot and cam, turn into the rotation of cam through connecting rod swing arm subassembly and pivot with the motion of vertical cylinder, the reciprocating rotation through the cam realizes the vibration from top to bottom of locomotive cab apron, design a plurality of guide structure in the perpendicular to vibration subassembly, guarantee the direction uniformity of vertical vibration, and set up the flexible spring along with the vibration of mount table on the rack, effectively cushion the vibration of locomotive cab apron, the vertical vibration that makes the locomotive cab apron more approaches to the dynamic buffer process of vibration in the operating condition, improve experimental reliability and validity.
4. Adopt the utility model discloses a locomotive cab apron system test platform detects locomotive cab apron system, whether the level that detects the locomotive cab apron is flexible, rotation angle, vertical bear and the axial compression satisfies the user demand of the locomotive in-process of actually traveling, judge whether there is interference phenomenon in the locomotive cab apron system among the locomotive developments travel process, it is high to detect reliability and validity, can carry out reliability analysis research to the locomotive cab apron system, for further improving the locomotive cab apron system and provide effective test basis, improve the reliability and the stability that the locomotive link up the way.
Drawings
Fig. 1 is a schematic structural diagram of a locomotive cab apron system test platform with a control system omitted.
FIG. 2 is a partial schematic view of a locomotive cab apron system test platform.
Fig. 3 is a schematic structural view of the rotary telescopic assembly.
Fig. 4 is a schematic structural view of the fixing bracket.
FIG. 5 is a schematic view of the vertical vibration unit mounted on the gantry.
FIG. 6 is a schematic view of another alternative vertical vibration assembly mounted on a gantry.
Detailed Description
The following describes embodiments of the present invention in detail with reference to fig. 1 to 6.
The test platform for the locomotive cab apron system comprises a horizontally arranged rack 1, two three-way simulation motion devices 2 arranged on the rack 1 and used for driving the locomotive cab apron to move and a control system connected with the three-way simulation motion devices 2, wherein the two three-way simulation motion devices 2 are arranged on the rack 1 in a relative mode, and one locomotive cab apron is horizontally fixed on each three-way simulation motion device 2.
As shown in the figure, the test platform of the locomotive cab apron system comprises two three-way simulation motion devices 2, the two three-way simulation motion devices 2 are oppositely arranged to enable the locomotive cab apron arranged on the test platform to be oppositely arranged, the dynamic change process of the locomotive cab apron under the actual operation working condition of the locomotive is simulated through the action of the three-way simulation motion devices, wherein a rotary telescopic component 3 drives the locomotive cab apron to horizontally extend and rotate, a vertical vibration component 8 drives the locomotive cab apron to vertically vibrate, the control system controls the three-way simulation motion devices to act and collects the dynamic test data of the locomotive cab apron system in the test process, the comprehensive dynamic change of the horizontal extension, rotation and vertical vibration of the locomotive cab apron is realized, the dynamic change of the locomotive cab apron in the actual running process of the locomotive is equivalent to the dynamic change of the locomotive cab apron in the actual running process of the locomotive, the relative, whether the horizontal expansion, the rotation angle, the vertical bearing and the axial compression of the locomotive cab apron meet the use requirements of the locomotive in the actual running process is detected, whether the locomotive cab apron system has internal and external interference phenomena in the dynamic running process of the locomotive is judged, real and effective test data are provided for the installation and the use of the locomotive cab apron system, so that the reliability analysis and the research of the locomotive cab apron system are conveniently carried out, an effective test basis is provided for further improving the locomotive cab apron system, and the reliability and the stability of a locomotive through passage are improved.
Wherein, the rotation telescopic assembly 3 include rotatable dress on rack 1 and the level setting the runner assembly 4, dress on runner assembly 4 and with runner assembly 4 matched fixed bolster 5 that slides, be used for driving fixed bolster 5 gliding horizontal cylinder 6 on runner assembly 4 and be used for driving runner assembly 4 pivoted lead screw driving piece 7 on rack 1, the locomotive cab apron is fixed on fixed bolster 5, horizontal cylinder 6 is fixed on runner assembly 4 and its flexible end is fixed with fixed bolster 5. The locomotive cab apron is fixed by a fixed support 5, a screw rod driving piece 7 drives a rotating assembly to rotate so as to drive the locomotive cab apron to rotate, and a horizontal cylinder 6 pushes the fixed support 5 to slide so as to drive the locomotive cab apron to stretch back and forth. As can be seen from the attached drawing, the fixed support 5 slides on the rotating component 4, the rotating component 4 horizontally rotates on the rack 1, and the fixed support 5 also synchronously rotates, so that the cab apron of the locomotive rotates, therefore, the horizontal extension and the rotation of the cab apron of the locomotive can be synchronously carried out or separately carried out, the dynamic change process of the cab apron of the locomotive in the running state of the locomotive in the actual working condition is consistent, and the effectiveness and the reliability of the detection of a cab apron system are high.
Wherein, the rotating assembly 4 include rotating bracket 41 and the support spin 42 that is used for supporting rotating bracket 41 and sets up at rack 1 coparallel, rotating bracket 41 one end and rack 1 rotatable coupling, the other end is connected with lead screw driving piece 7 cooperation, horizontal cylinder 6 is fixed on rotating bracket 41, fixed bolster 5 cooperation dress that slides is on rotating bracket 41, lead screw driving piece 7 drives rotating bracket 41 and rotates on rack 1, support spin 42 along with rotating bracket 41's motion roll on rack 1. The support rolling balls 42 support the rotating bracket 41 and move synchronously with the rotating bracket 41, so that the rotating bracket is prevented from inclining in the moving process, and the structural stability and reliability are improved.
5. The screw driving member 7 includes a screw mounting frame 71 mounted on the rack 1, an electric screw 72 mounted in the screw mounting frame 71 and driven by a servo motor, the rotating bracket 41 is connected with the electric screw 72 through a rotating fitting member 43 in a threaded fit manner, the rotating fitting member 43 includes a fitting seat 43.1 in a threaded fit with the electric screw 72 and a movable sleeve 43.2 rotatably mounted on the fitting seat 43.1, and the movable sleeve 43.2 is sleeved on a horizontal rod 41.1 of the rotating bracket 41 and moves on the horizontal rod 41.1 along with the rotation of the rotating bracket 41. When the electric screw rod 72 rotates, the rotating matching piece 72 is driven to move on the electric screw rod 72, so that one end of the rotating support 41 rotates, the rotating matching piece 43 moves on the electric screw rod 72 along a straight line, and the rotating support 41 rotates along a circular arc, so that the movable sleeve 43.2 is sleeved on the horizontal rod 41.1, the movable sleeve 43.2 slides on the horizontal rod 41.1 when the rotating support 41 rotates, so as to change the radius of the rotating support 41 in the rotating process, so that one end of the rotating support 41 can move along a straight line, namely, through the relative motion of the movable sleeve 43.2 and the horizontal rod 41, the radius change of the rotating support 41 in the rotating process is realized, the rotating support 41 rotates along with the movement of the electric screw rod to provide a rotating freedom degree, the structural design is ingenious, and the rotating angle precision and the movement flexibility of the rotating telescopic assembly are higher.
The rotating bracket 41 is provided with a guide groove 41.2, the bottom of the fixed bracket 5 is provided with a guide rail 51 matched with the guide groove 41.2, the cross section of the guide groove 41.2 is in a convex shape, the cross section of the guide rail 51 is also in a convex shape, two side edges of the guide rail 51 are inserted into the guide groove 41.2 to vertically position the fixed bracket 5 and the rotating bracket 41, so that the fixed bracket 5 is effectively prevented from being turned out of the rotating bracket 41 in the moving process, and the structural stability and reliability are improved; the rack 1 is rotatably connected with the rotating support 41 through the rotating fulcrum threaded shaft 11, the rotating fulcrum threaded shaft 11 is rotatably arranged on the rack 1 along the vertical direction, the rotating fulcrum threaded shaft 11 is fixed with the rotating support 41 and penetrates through the strip-shaped through hole 52 in the fixed support 5, the strip-shaped through hole 52 is parallel to the guide rail 51, the rotating fulcrum threaded shaft 11 moves in the strip-shaped through hole 52 along with the sliding of the guide rail 51, and the rotating fulcrum threaded shaft 11 is sleeved with a limit nut 11.1 used for limiting the upward turning of the fixed support 5. The rotating support 41 rotates around the rotating fulcrum threaded shaft 11, when the horizontal stretching and the rotation of the locomotive transition plate are synchronous, the fixed support 5 slides on the rotating support 41, the rotating fulcrum threaded shaft 11 moves in the strip-shaped through hole 52, the structural interference is avoided, and the stretching and the rotation are synchronous.
The rack 1 is provided with an installation platform 12 capable of moving vertically, the rotary telescopic component 3 is arranged on the installation platform 12, the vertical vibration component 8 comprises vertical cylinders 81 arranged vertically, a connecting rod swing arm component 82 connected with the vertical cylinders 81, a rotating shaft 83 connected with the connecting rod swing arm component 82 and cams 84 coaxially arranged on the rotating shaft 83, the number of the rotating shafts 83 is two, the two rotating shafts are symmetrically arranged below the installation platform 12, the cams 84 are in contact with the installation platform 12, the telescopic ends of the vertical cylinders 81 are connected with the connecting rod swing arm component 82, the connecting rod swing arm component 82 drives the rotating shaft 83 to rotate in a reciprocating mode along with the movement of the vertical cylinders 81, the cams 84 are driven to rotate in a reciprocating mode, and the installation platform 12 vibrates up and down along with the reciprocating rotation of the cams 84.
The motion of the vertical cylinder 81 is converted into the rotation of the cam through the connecting rod swing arm component 82 and the rotating shaft 83, the vertical vibration of the mounting table 12 is realized through the reciprocating rotation of the cam 84, so that the locomotive cab apron is driven to vibrate up and down, the vertical vibration component 8 and the rotary telescopic component 3 are structurally independent, the locomotive cab apron can also synchronously vibrate vertically in the process of horizontal telescopic motion and rotation, the dynamic change process of the locomotive cab apron in the running state of the locomotive in actual working conditions is consistent, and the effectiveness and the reliability of the detection of a locomotive cab apron system are high.
The connecting rod swing arm assembly 82 comprises a movable plate 82.1 connected with the telescopic end of the vertical cylinder 81 and horizontally arranged, connecting rods 82.2 connected with the movable plate 82.1 and symmetrically arranged on the left side and the right side of the movable plate 82.1, and a swing arm 82.3 hinged with the connecting rods 82.2, wherein one end of the swing arm 82.3 is hinged with the connecting rods 82.2, the other end of the swing arm is fixedly connected with the rotating shaft 83, and the movable plate 82.1 reciprocates up and down along with the telescopic of the vertical cylinder 81 and drives the rotating shaft 83 to rotate in a reciprocating manner through the connecting rods 82.2 and the swing arm 82.3. As shown in the figure, the telescopic end of the vertical cylinder 81 drives the movable plate 82.1 to reciprocate up and down, so that the connecting rod 82.2 is pulled to move, the connecting rod 82.2 drives the swing arm 82.3 to rotate, the rotation of the swing arm 82.3 enables the rotating shaft 83 to rotate, the rotation of the rotating shaft 83 enables the cam 84 to rotate, the height of the mounting table 12 is changed, the vibration of the mounting table 12 is formed, the rotary telescopic assembly 31 is driven to vibrate, and the vibration of the locomotive cab apron is realized.
The rotating shaft 83 is coaxially fixed with a plurality of uniformly spaced cams 84, the rack 1 is provided with a supporting beam 17 which is horizontally arranged and is positioned below the mounting table 12, the vertical cylinder 81 is fixed on the supporting beam 17, the movable plate 82.1 is positioned below the supporting beam 17, the telescopic end of the vertical cylinder 81 and the connecting rod 82.2 both penetrate through the supporting beam 17 and are connected with the movable plate 82.1, the supporting beam 17 is provided with a rectangular through hole 17.1 for the connecting rod 82.2 to penetrate through, the supporting beam 17 is used for fixing the vertical cylinder 81, the stability of the vertical cylinder 81 in the vibration process is ensured, the stability of the whole rack 1 in the vibration process of the mounting table 12 is also improved, and the structural stability and reliability of the whole test platform are improved; a lower guide cylinder 13 vertically arranged is fixed on the supporting beam 17, a lower guide rod 82.4 in guiding fit with the lower guide cylinder 13 is arranged on the movable plate 82.1, an upper guide cylinder 19 is arranged on the mounting table 12, an upper guide rod 14 in guiding fit with the upper guide cylinder 19 is fixed on the table frame 1, the number of the lower guide cylinder 13 and the number of the upper guide cylinder 19 are four and are distributed in a rectangular shape, when the vertical cylinder 81 extends and retracts back and forth, the movable plate 82.1 is driven to move, the movable plate 82.1 drives the lower guide rod 82.4 to move in the lower guide cylinder 13 to guide the movement of the movable plate 82.1, the movable plate 82.1 pulls the connecting rod 82.2 to move, so as to drive the swing arm 82.3 to rotate, one end of the swing arm 82.3 drives the rotating shaft 83 to rotate, so as to drive the cam 84 to rotate, so as to drive the mounting table 12 to move, the upper guide cylinder 19 moves on the upper guide rod 14 along with the movement of the mounting table 12 to guide the movement of the mounting, the direction consistency of vertical vibration is guaranteed, and the structural reliability is higher.
The locomotive cab apron is characterized in that a vertical screw 15 penetrating through the mounting table 12 is arranged on the bench 1, a spring 16 stretching along with the vibration of the mounting table 12 is sleeved on the vertical screw 15, the mounting table 12 is pressed on the spring 16, and the spring 16 effectively buffers the vibration of the mounting table 12, so that the vibration of the mounting table 12 has a buffering characteristic and is consistent with a damping and buffering function in a locomotive running vibration process, the vertical vibration of the locomotive cab apron is closer to a dynamic buffering process of vertical vibration in an actual working condition, and the reliability and effectiveness of a test are improved. The threaded sleeve 18 is sleeved on the vertical screw rod 15 in a screw matching mode, the threaded sleeve 18 is located above the mounting table 12, and the mounting table 12 is not in contact with the threaded sleeve 18 in the vibration process. The threaded sleeve 18 effectively prevents the mounting table 12 from vibrating upwardly to an excessive magnitude.
The locomotive cab apron system test platform is controlled by a control system, the control system comprises an electric component and a pneumatic component, the electric component controls the three-way simulation motion device to act and collects dynamic test data of the locomotive cab apron system in the test process, the electric component comprises a microcomputer control system, a data collection system, a data display system, a pressure sensing device, a direct-current power supply, a protection device, a change-over switch, a servo motor (with a drive), a planetary speed changer, a time relay, an intermediate relay, an electromagnetic valve, an induction switch, a travel switch, a PLC control system and the like, and the pneumatic component comprises a two-position five-way electromagnetic valve, a pressure sensor, a pressure regulating valve, a throttle valve, a one-way valve, an air cylinder, a pipe. The control system controls the action of the three-way analog motion device, the dynamic change process of the locomotive cab apron under the actual operation condition of the locomotive is simulated through the action of the three-way analog motion device, wherein the rotary telescopic component drives the locomotive cab apron to horizontally extend and contract and rotate, the vertical vibration component drives the locomotive cab apron to vertically vibrate, the control system is used for coordinately controlling the action of the three-way analog motion device, the comprehensive dynamic change of the horizontal extension, rotation and vertical vibration of the locomotive cab apron is realized, the dynamic change effect of the relative up-down dislocation of the two locomotive cab apron, the dynamic change effect of the extension, approach and rotation is detected, whether the horizontal extension, the rotation angle, the vertical bearing and the axial compression of the locomotive cab apron meet the use requirements in the actual running process of the locomotive or not is detected, and whether the internal and external interference phenomena exist in the locomotive cab apron system in the dynamic running process of the locomotive is judged, the dynamic test data collected by the control system is exported and analyzed, so that real and effective test data are provided for the installation and use of the locomotive cab apron system, the reliability analysis and research of the locomotive cab apron system can be conveniently carried out, effective test basis is provided for further improving the locomotive cab apron system, and the reliability and the stability of a locomotive through passage are improved.
The technical solutions of the embodiments of the present invention are completely described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Claims (9)
1. The test platform for the locomotive cab apron system comprises a horizontally arranged rack (1), three-way simulation motion devices (2) arranged on the rack (1) and used for driving the locomotive cab apron to move and a control system connected with the three-way simulation motion devices (2), wherein the number of the three-way simulation motion devices (2) is two, the three-way simulation motion devices are arranged on the rack (1) in a relative mode, one locomotive cab apron is horizontally fixed on each three-way simulation motion device (2), the test platform is characterized in that the three-way simulation motion devices (2) comprise rotary telescopic assemblies (3) used for installing the locomotive cab apron and driving the locomotive cab apron to horizontally stretch and rotate and vertical vibration assemblies (8) used for driving the locomotive cab apron to vertically vibrate, and the control system coordinately controls the action of the three-way simulation motion devices (2) and acquires dynamic test data in a test process.
2. The locomotive cab apron system test platform of claim 1, wherein the rotary telescopic assembly (3) comprises a rotary assembly (4) which is rotatably arranged on the rack (1) and is horizontally arranged, a fixed support (5) which is arranged on the rotary assembly (4) and is in sliding fit with the rotary assembly (4), a horizontal cylinder (6) for driving the fixed support (5) to slide on the rotary assembly (4) and a screw rod driving piece (7) for driving the rotary assembly (4) to rotate on the rack (1), the locomotive cab apron is fixed on the fixed support (5), the horizontal cylinder (6) is fixed on the rotary assembly (4), and the telescopic end of the horizontal cylinder is fixed with the fixed support (5).
3. The locomotive cab apron system test platform of claim 2, wherein the rotating assembly (4) comprises a rotating bracket (41) and a supporting rolling ball (42) horizontally arranged on the rack (1) for supporting the rotating bracket (41), one end of the rotating bracket (41) is rotatably connected with the rack (1), the other end of the rotating bracket (41) is connected with a screw rod driving piece (7) in a matching manner, a horizontal cylinder (6) is fixed on the rotating bracket (41), a fixed bracket (5) is arranged on the rotating bracket (41) in a sliding fit manner, the screw rod driving piece (7) drives the rotating bracket (41) to rotate on the rack (1), and the supporting rolling ball (42) rolls on the rack (1) along with the movement of the rotating bracket rolling ball (41).
4. The locomotive cab apron system test platform of claim 3, wherein the screw rod driving member (7) comprises a screw rod mounting frame (71) installed on the rack (1), and an electric screw rod (72) installed in the screw rod mounting frame (71) and driven by a servo motor, the rotating bracket (41) is in threaded fit connection with the electric screw rod (72) through a rotating fitting member (43), the rotating fitting member (43) comprises a fitting seat (43.1) in threaded fit with the electric screw rod (72) and a movable sleeve (43.2) rotatably installed on the fitting seat (43.1), and the movable sleeve (43.2) is sleeved on a horizontal rod (41.1) of the rotating bracket (41) and moves on the horizontal rod (41.1) along with the rotation of the rotating bracket (41).
5. The locomotive cab apron system test platform of claim 3, wherein the rotating bracket (41) is provided with a guide groove (41.2), the bottom of the fixed bracket (5) is provided with a guide rail (51) matched with the guide groove (41.2), the cross section of the guide groove (41.2) is in a shape of a Chinese character 'tu', the cross section of the guide rail (51) is also in a shape of a Chinese character 'tu', two side edges of the guide rail (51) are inserted into the guide groove (41.2), the rack (1) is rotatably connected with the rotating bracket (41) through a rotating fulcrum threaded shaft (11), the rotating fulcrum threaded shaft (11) is rotatably arranged on the rack (1) along the vertical direction, the rotating fulcrum threaded shaft (11) is fixed with the rotating bracket (41) and penetrates through a strip-shaped through hole (52) on the fixed bracket (5), the strip-shaped through hole (52) is parallel to the guide rail (51), and the rotating fulcrum threaded shaft (11) moves in the strip-shaped through hole (52) along with the sliding of the guide rail, the rotating fulcrum threaded shaft (11) is sleeved with a limiting nut (11.1) used for limiting the fixed support (5) to turn upwards.
6. the locomotive cab apron system test platform of claim 1, wherein the rack (1) is provided with a mounting table (12) capable of moving vertically, the rotary telescopic assembly (3) is mounted on the mounting table (12), the vertical vibration assembly (8) comprises a vertical cylinder (81) arranged vertically, a connecting rod swing arm assembly (82) connected with the vertical cylinder (81), a rotating shaft (83) connected with the connecting rod swing arm assembly (82) and a cam (84) coaxially mounted on the rotating shaft (83), the number of the rotating shafts (83) is two, the rotating shafts (83) are symmetrically mounted below the mounting table (12), the cam (84) is in contact with the mounting table (12), the telescopic end of the vertical cylinder (81) is connected with the connecting rod swing arm assembly (82), the connecting rod swing arm assembly (82) drives the rotating shaft (83) to rotate in a reciprocating manner along with the movement of the vertical cylinder (81), so as to drive the cam (84) to rotate in a reciprocating manner, the mount table (12) vibrates up and down in accordance with the reciprocating rotation of the cam (84).
7. The locomotive cab apron system test platform of claim 6, wherein the connecting rod swing arm assembly (82) comprises a movable plate (82.1) connected with the telescopic end of the vertical cylinder (81) and horizontally arranged, connecting rods (82.2) connected with the movable plate (82.1) and symmetrically arranged on the left side and the right side of the movable plate (82.1), and a swing arm (82.3) hinged with the connecting rod (82.2), one end of the swing arm (82.3) is hinged with the connecting rod (82.2), the other end of the swing arm is fixedly connected with the rotating shaft (83), the movable plate (82.1) reciprocates up and down along with the telescopic of the vertical cylinder (81), and the connecting rod (82.2) and the swing arm (82.3) drive the rotating shaft (83) to reciprocate.
8. The locomotive cab apron system test platform of claim 7, wherein a plurality of cams (84) are coaxially fixed on the rotating shaft (83), a support beam (17) which is horizontally arranged and is positioned below the mounting table (12) is arranged in the rack (1), a vertical cylinder (81) is fixed on the support beam (17), a movable plate (82.1) is positioned below the support beam (17), the telescopic end of the vertical cylinder (81) and a connecting rod (82.2) both penetrate through the support beam (17) and are connected with the movable plate (82.1), a rectangular through hole (17.1) for the connecting rod (82.2) to penetrate through is formed in the support beam (17), a lower guide cylinder (13) which is vertically arranged is fixed on the support beam (17), a lower guide rod (82.4) which is in guide fit with the lower guide cylinder (13) is arranged on the movable plate (82.1), and an upper guide cylinder (19) is arranged on the mounting table (12), an upper guide rod (14) which is matched with the upper guide cylinder (19) in a guiding way is fixed on the rack (1), and the number of the lower guide cylinders (13) and the number of the upper guide cylinders (19) are four and are distributed in a rectangular way.
9. The locomotive cab apron system test platform of claim 6, wherein the rack (1) is provided with a vertical screw (15) penetrating through the mounting table (12), the vertical screw (15) is sleeved with a spring (16) stretching along with the vibration of the mounting table (12), the mounting table (12) is pressed on the spring (16), the vertical screw (15) is sleeved with a threaded sleeve (18) in a screw fit manner, the threaded sleeve (18) is positioned above the mounting table (12), and the mounting table (12) is not contacted with the threaded sleeve (18) in the vibration process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920513571.3U CN209764399U (en) | 2019-04-16 | 2019-04-16 | Locomotive cab apron system test platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974993A (en) * | 2019-04-16 | 2019-07-05 | 湖南铁道职业技术学院天一实业有限公司 | The detection method of locomotive cab apron system test platform and locomotive cab apron system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974993A (en) * | 2019-04-16 | 2019-07-05 | 湖南铁道职业技术学院天一实业有限公司 | The detection method of locomotive cab apron system test platform and locomotive cab apron system |
| CN109974993B (en) * | 2019-04-16 | 2024-04-12 | 湖南天一轨道实业有限公司 | Locomotive cab apron system test platform and locomotive cab apron system detection method |
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Address after: No.92 Xiangshan Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: Hunan Tianyi Rail Industry Co.,Ltd. Country or region after: China Address before: No.92 Xiangshan Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee before: TIANYI INDUSTRY CO., LTD. HUNAN RAILWAY PROFESSIONAL TECHNOLOGY College Country or region before: China |