CN113092144A - Locomotive, motor car bogie test device - Google Patents
Locomotive, motor car bogie test device Download PDFInfo
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- CN113092144A CN113092144A CN202110500215.XA CN202110500215A CN113092144A CN 113092144 A CN113092144 A CN 113092144A CN 202110500215 A CN202110500215 A CN 202110500215A CN 113092144 A CN113092144 A CN 113092144A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a test device for a bogie of a locomotive or a motor car, which comprises a loading unit, a track wheel set unit, an upper platform walking unit, a reaction frame device and an electric transmission and control system, wherein the track wheel set unit is used for being matched with the loading unit, the electric transmission and control system is used for driving the loading unit, the loading unit comprises a dummy car body, a tested bogie group and an accompanying test bogie group, the tested bogie group and the accompanying test bogie group are arranged below the dummy car body, two ends of the dummy car body are connected with the reaction frame device, the tested bogie group comprises at least one bogie, the accompanying test bogie group comprises at least one bogie, and the tested bogie group and the accompanying test bogie group are mutually loaded in a counter-dragging mode. The invention provides a multi-vehicle and multi-bogie test bed, which improves the sample size of one test, can be used for a bogie performance test and a delivery test, and can also be used for a loading endurance and high-speed running-in verification test of each part of a bogie.
Description
Technical Field
The invention belongs to test equipment, and particularly relates to a test device for a steering frame of a locomotive or a motor car.
Background
In recent years, high-power electric locomotives and high-speed rails in China are developed rapidly, and compared with the traditional railway locomotive vehicles, the safety and reliability of the railway locomotive vehicles are more important due to the fact that the axle weight and the operation speed are greatly improved. Various types of finished vehicles and bogie test beds are put into use in succession, and the test beds are mainly used for the performance and delivery tests of the finished vehicles and the bogies. However, the conventional test bed has low use frequency, small designed test sample amount, low utilization rate of the test bed and poor reliability, and is difficult to adapt to the requirements of large axle weight and high-speed operation.
Disclosure of Invention
Aiming at the problems, the invention researches and designs a locomotive and motor car bogie test device to solve the problems of small test sample size, low utilization rate, poor reliability and the like of the conventional test device. The technical means adopted by the invention are as follows:
the locomotive and motor car bogie testing device comprises a loading unit, a track wheel set unit, an upper table walking unit, a reaction frame device and an electric transmission and control system, wherein the track wheel set unit is used for being matched with the loading unit, the electric transmission and control system is used for driving the loading unit, the loading unit comprises a fake locomotive body, a tested bogie group and an auxiliary test bogie group, the tested bogie group and the auxiliary test bogie group are arranged under the fake locomotive body, two ends of the fake locomotive body are connected with the reaction frame device, the tested bogie group comprises at least one bogie, the auxiliary test bogie group comprises at least one bogie, a bogie of the tested bogie group is the same as a bogie of the auxiliary test bogie group in a steering mode, and the tested bogie group and the auxiliary test bogie group are mutually loaded in an opposite dragging mode.
Preferably, the number of bogies of the tested bogie set is the same as the number of bogies of the accompanying bogie set.
Preferably, the number of the track wheel pair units is two, the track wheel pair units are respectively a first track wheel pair unit and a second track wheel pair unit, the first track wheel pair unit and the second track wheel pair unit are arranged side by side, the number of the loading units is two, and the two loading units are respectively matched with the first track wheel pair unit and the second track wheel pair unit.
Preferably, the first track wheel pair unit and the second track wheel pair unit are connected through a coupler.
Preferably, the device further comprises a synchronizing device, wherein the synchronizing device comprises a synchronizing gear box and a cardan shaft, the synchronizing gear box is connected with the rail wheels of the rail wheel pair unit, and the synchronizing gear box is connected with the rail wheels of the rail wheel pair unit through the cardan shaft.
Preferably, the system further comprises a torque and rotating speed sensor for acquiring a torque and rotating speed signal of the rail wheel and a temperature sensor for acquiring a temperature signal of the bearing, and each sensor feeds the acquired signal back to the electric transmission and control system.
Preferably, the reaction frame device includes the reaction frame and pulls the pull rod device, the reaction frame includes base member, slider and lift bar, be equipped with the spout on the base member, the slider with the lift bar is connected, the lift bar can drive the slider is followed the spout motion, the direction of motion of slider is on a parallel with the direction of gravity of slider, pull rod device's one end with slider fixed connection, the other end with false automobile body fixed connection.
Preferably, the traction pull rod device comprises a first mounting seat, a first pull rod, a first threaded sleeve, a second mounting seat, a second pull rod, a second threaded sleeve and a positioning nut, the first mounting seat is fixedly connected with the sliding block, one end of the first pull rod is connected with the first mounting seat, the outer side of the other end of the first pull rod is provided with threads, the second mounting seat is fixedly connected with the fake car body, one end of the second pull rod is connected with the second mounting seat, the outer side of the other end of the second pull rod is provided with threads, the first pull rod and the second pull rod are both provided with the positioning nut, the first threaded sleeve is connected with the first pull rod through the threads and is limited by the positioning nut, the second threaded sleeve is connected with the second pull rod through the threads and is limited by the positioning nut, the end parts of the first threaded sleeve and the second threaded sleeve are both provided with flanges, the first threaded sleeve and the second threaded sleeve are connected through a flange and a bolt.
Preferably, joint bearings are arranged in the first mounting seat and the second mounting seat, the first mounting seat is connected with the first pull rod through a pin shaft and the joint bearings, and the second mounting seat is connected with the second pull rod through a pin shaft and the joint bearings.
Preferably, a counterweight is arranged on the dummy car body.
Compared with the prior art, the test device for the steering frame of the locomotive and the motor car has the beneficial effects that: the invention provides a multi-vehicle and multi-bogie test bed, which simulates the traction working conditions of a locomotive and a motor car in a bogie opposite towing mode, is provided with a plurality of track wheel pair units, can simultaneously test two or more whole vehicles or the locomotives and the motor car bogies with even number of bogies, improves the utilization rate of the test bed and the sample size of one test, can adapt to the requirements of large axle weight and high-speed running, can be used for the performance test and delivery test of the bogie of a railway locomotive vehicle, and can also carry out the loading endurance and high-speed running-in verification test of each part of the bogie.
Drawings
FIG. 1 is a schematic top view of a testing apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic front view of the testing apparatus according to the embodiment of the present invention.
Fig. 3 is a schematic side view of a railway wheel pair unit in an embodiment of the invention.
Fig. 4 is a schematic structural diagram of a reaction frame device in an embodiment of the invention.
Fig. 5 is a schematic top view of a reaction frame device according to an embodiment of the present invention.
FIG. 6 is a schematic side view of a reaction frame according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a traction link apparatus in an embodiment of the present invention.
Fig. 8 is a schematic cross-sectional view of a drag link apparatus according to an embodiment of the present invention.
Fig. 9 is a schematic internal structure diagram of the first and second mounting seats in the embodiment of the present invention.
Fig. 10 is a power supply system topology diagram in an embodiment of the invention.
Fig. 11 is a topology diagram of a traction control system in an embodiment of the present invention.
In the figure, 1, load unit; 11. a dummy car body; 12. a tested bogie group; 13. testing the bogie group; 2. a rail wheel pair unit; 21. a first track wheel pair unit; 22. a second track wheel pair unit; 23. a coupling; 3. an upper table traveling unit; 4. a reaction frame device; 41. a reaction frame; 411. a substrate; 412. a slider; 413. a chute; 414. a lifting bar; 42. a traction link arrangement; 421. a first mounting seat; 422. a first pull rod; 423. a first threaded sleeve; 424. a second mounting seat; 425. a second pull rod; 426. a second thread insert; 427. positioning a nut; 428. a pin shaft; 429. a knuckle bearing; 5. a synchronization device; 51. a synchronous gearbox; 52. a cardan shaft; 53. a chassis; 6. a base platform.
Detailed Description
As shown in fig. 1 to 11, a bogie testing device for a locomotive or a motor car comprises a loading unit 1, a rail wheel pair unit 2 matched with the loading unit 1, an upper walking unit 3, a reaction frame device 4 and an electric transmission and control system for driving the loading unit 1. The loading unit 1 comprises a fake vehicle body 11, a tested bogie group 12 and an auxiliary test bogie group 13, wherein the tested bogie group 12 and the auxiliary test bogie group 13 are arranged below the fake vehicle body 11, and a balancing weight is arranged on the fake vehicle body 11 and used for simulating the real axle load of a bogie. The tested bogie group 12 comprises at least one bogie, the test-accompanying bogie group 13 comprises at least one bogie, the moving direction of the bogie of the tested bogie group 12 is the same as the bogie steering of the test-accompanying bogie group 13, the speeds of the two groups of bogies are the same, but the stresses are different, and the two groups of bogies are mutually loads in a mode of opposite dragging. The bogie is matched with the track wheel set unit 2, the track wheel set unit 2 can transmit the rotating speed and the torque of the bogie, and relevant parameters of the bogie can be converted by measuring parameters such as the rotating speed, the torque and the like of the track wheel set unit 2. The upper table walking unit 3 comprises an external steel rail, a guide beam, a support, a guide frame, a guide beam lifting system and a safety limiting device, and is mainly used for guiding the bogie to pass in and out of the test bed, and the loading unit 1 is conveyed to the rail wheel pair unit 2 through the upper table walking unit 3. The two ends of the dummy car body 11 are connected with the reaction frame device 4, and the reaction frame device 4 fixes the loading unit 1 on a test bed and bears traction force during the test.
The number of the bogies of the tested bogie group 12 is the same as that of the bogies of the accompanying test bogie group 13, so that the pulling force between the two groups of bogies can be conveniently controlled, and the running parameters of the bogies can be conveniently tested.
The number of the track wheel pair units 2 is two, the track wheel pair units are respectively a first track wheel pair unit 21 and a second track wheel pair unit 22, the first track wheel pair unit 21 and the second track wheel pair unit 22 are arranged side by side, the number of the loading units 1 is two, and the two loading units 1 are respectively matched with the first track wheel pair unit 21 and the second track wheel pair unit 22. The number of the rail wheel pair units 2 can be more than two, and by arranging the plurality of rail wheel pair units 2, two or more whole vehicles or locomotives and motor car bogies of bogies with even number can be tested simultaneously, so that the utilization rate of a test bed and the sample amount of one-time test are improved.
The first railway wheel-pair unit 21 and the second railway wheel-pair unit 22 are connected through a coupler 23, so that the two sets of bogies keep synchronous operation.
Further, the device comprises a synchronizer 5 which enables the track wheel pair unit 2 to synchronously operate, and the track wheel pair unit 2 and the synchronizer 5 are both fixed on a base platform 6. The synchronizer 5 comprises a synchronizing gear box 51, a cardan shaft 52 and a base frame 53, wherein the synchronizing gear box 51 is fixed on the base frame 53, and the base frame 53 is fixed on the base platform 6. Each track wheel pair unit 2 comprises two track wheel pairs, and the flanges of the track wheel pairs are in one-to-one corresponding contact with the flanges of the bogie. The electric transmission and control system drives the bogie to drive the track wheel pair to do circular motion to simulate an infinite-length track, and the track wheel pair unit 2 is only used for transmitting the output rotating speed and torque of the bogie and does not need a power source. The synchronous gear boxes 51 are connected with the track wheels of the track wheel pair unit 2, and the synchronous gear boxes 51 are connected through universal shafts 52 and used for forcibly restricting the rotation speed of the first track wheel pair unit 21 and the second track wheel pair unit 22 which are towed to be consistent.
The device also comprises a torque and rotating speed sensor for acquiring a torque and rotating speed signal of the rail wheel, a temperature sensor for acquiring a temperature signal of a bearing and other sensors, wherein the installation position of each sensor is determined by the interface position on the existing bogie, real-time test data related to the tested loading unit 1 is acquired through each sensor, and the acquired signal is fed back to an electric transmission and control system. In this embodiment, the electric transmission and control system includes a power supply system, a traction control system, an auxiliary system, and a network control system.
1. A power supply system:
as shown in fig. 10, the power supply system includes an incoming switch cabinet, three single-phase transformers, a feeding-out cabinet, a metering cabinet and an accompanying transformer, the accompanying machine set in the figure is used for accompanying a tested bogie set 13, and the tested traction system is used for a tested bogie set 12. Three-phase 10kV alternating current is changed into single-phase 25kV alternating current through three single-phase transformers, an internal circulation transformer is adopted as an auxiliary transformer, the primary side is 25kV, the secondary side provides voltage needed by the tested converter and the auxiliary converter, a back-to-back energy mutual feedback system is combined, and system loss is provided by the primary side. The relevant parameters are as follows:
(1)10kV net voltage power supply system: the power is 2000 kVA.
(2) Three single-phase transformers: the unbalance degree is required to be not more than 10 percent, and the efficiency is more than 90 percent.
Primary side: three phases 50Hz, 10kV, 2000 kVA.
Secondary side: single phase 50Hz, 25kV, 2000 kVA.
(3) Testing the transformer together: the efficiency is more than 90%.
Primary side: single phase 50Hz, 25kV, 2000 kVA.
Secondary side: the two windings are identical.
Single phase 50Hz, 2000 kVA.
The leakage inductance required by the converter is met by a series adjustable reactor.
(4) And a 25kV high-voltage cabinet is configured and used for a control cabinet of a 25kV test power supply. The intelligent load protection system mainly comprises a 10kV incoming line switch cabinet, a metering cabinet, an outgoing cabinet and the like, is provided with a microcomputer relay protection device, and realizes load protection functions including but not limited to overvoltage, undervoltage, overcurrent, quick break, over-temperature trip/alarm, network door trip and the like. The high-voltage cabinet remote control system has a communication interface, and can be used for remotely realizing the state of the high-voltage cabinet and realizing the functions of remote measurement, remote signaling, remote control and the like. The automatic control device is provided with a primary loop simulation diagram, switch state indication, control mode selection (remote/local), manual operation (switching on/off), an energy storage switch, high-voltage live display (including locking output), automatic temperature and humidity control and other functions, and integrates operation and display. The device is provided with a live display device, and can effectively display the positions of a breaker (closing, separating and storing energy), a handcart and a ground knife, temperature and humidity display, heater work and three-phase live display; arranging a high-voltage transformer and measuring input voltage; the circuit breaker has the five-prevention functions of preventing misoperation, preventing the handcart from being pushed and pulled with load, preventing the grounding switch from being closed with electricity, preventing the grounding switch from being powered when the grounding switch is at the grounding position, preventing the grounding switch from entering the electrified interval by mistake and the like.
2. A traction control system:
as shown in fig. 11, the test bed adopts two original vehicle bogies and traction systems to simulate a vehicle as a tested object, and simultaneously provides another two original vehicle bogies and traction systems as an accompanying test, wherein the two original vehicle bogies and traction systems realize traction loading and brake feedback in a dragging manner, and the two original vehicle bogies and traction systems are respectively defined as the tested system and the accompanying test system in the figure.
The test system takes a 380B vehicle type bogie as a tested and accompanied test object and adopts a 400BF vehicle type traction converter as a driving device. The test and accompanying test TCU is special for the matched test, a control algorithm and a control logic program are designed according to the application requirements of the test system, the operation of the tested and accompanying test system is controlled according to the speed and power requirements of a tested object, and the operation requirements on towing loading, speed and mileage are realized.
The working principle of the TCU is as follows: after the TCU receives a starting signal issued by the outside, all logics such as network voltage, input current, bus voltage, water temperature, water pressure, faults and the like are detected, after the starting requirement is met, the charging contactor is closed to start charging action, the main contactor is closed to start sending pulses, at the moment, the rectifier starts working, and the bus voltage is lifted to a target value. And then starting the inverter to drive the motor to operate according to the received motor speed or torque control command. The TCU has an energy feedback control function, when the brake process is started, the rectifier and the inverter convert the working condition, and the energy is fed back to a front end grid of the converter under the control of the four-quadrant rectifier. And energy circulation between the tested system and the accompanying system is realized. The whole working process can detect monitoring points such as network voltage, bus voltage, drive feedback, cooling signals, motor temperature, voltage, current and the like, and if a fault is reported, the action can be developed according to protection logic corresponding to the fault, so that the operation safety of the system is ensured.
3. An auxiliary system:
comprises a cooling control cabinet, an auxiliary power distribution cabinet and a control power supply cabinet.
(1) And the cooling control cabinet is responsible for cooling control of the tested and accompanying traction converter, the simulation walking fan and the plant ventilator. The cooling control cabinet introduces AC380V voltage, and the frequency conversion control output is realized through an in-cabinet frequency converter. The frequency conversion control can ensure the stable and reliable operation of the circuit and reduce the interference to a superior power grid during starting, an input breaker is arranged at the front end of each branch, and when the branch has an overcurrent fault, the circuit can be broken to prevent the expansion of the fault.
(2) The auxiliary power distribution cabinet introduces AC380V power from the factory, and the output is controlled through each branch circuit breaker in the cabinet to provide AC380V or AC220V power for the relevant equipment of the test system. An input voltmeter and an input ammeter are arranged above the cabinet body and can display the voltage and the output current value of the input end.
(3) The control power supply cabinet draws AC220V voltage from the auxiliary power distribution cabinet, and converts the AC220V voltage into DC110V and DC24V control power supply through the power supply module in the cabinet. An Uninterruptible Power Supply (UPS) is arranged in the cabinet, when a system is powered off or a power module fails, the UPS can continuously output and control the power supply, so that an operator can gradually stop the work of the test bed according to normal steps, and the safety of the test is ensured to the greatest extent. An input voltmeter and an input ammeter are arranged above the cabinet body and can display the voltage and the output current value of the input end.
4. A network control system:
the network control system adopts test special TCMS equipment to work with the TCU in a cooperative mode, and network control over the traction converter is achieved. The network control system is in a control console mode and comprises network equipment, master equipment, display equipment and the like. Remote control devices of the power supply system and the auxiliary system are also installed integrally in the console.
The network control system device mainly comprises a central control unit CCU, a data recorder ERM, a display unit HMI, a RIOM acquisition unit and the like. The CCU realizes the functions of MVB bus management, operation control and the like; the data recorder ERM realizes the recording function of fault data and operation data; the RIOM unit is used for realizing interaction between a network and a hard-wire signal (input and output of the hard-wire signal); and the HMI intelligent display unit is used for displaying the state of the system and providing an interface for human-computer interaction.
The main control functions of the network control system are as follows:
□ traction braking command transmission: collecting traction control signals of a driver controller, wherein the traction control signals comprise running direction instructions (forward, backward and non-direction), traction/braking instructions (traction, braking and traction prohibition) and a level;
□ running operation mode control (speed control mode, torque control mode), etc.;
□ wheel diameter setting;
□ monitoring traction system status: receiving a state signal sent by a traction controller;
□ monitoring traction system fault indications;
□ monitoring the status of communications with the TCU;
□ clock synchronization;
□ vehicle operating condition monitoring;
□ monitoring the running state of the test device;
the main fault diagnosis functions of the network control system are as follows:
if a fault occurs, textual information will be displayed to the operator on the HMI.
On the HMI, each piece of plain text information is provided with a fault code, and fault evaluation is carried out according to different fault categories. The fault category and plain text information is displayed on the interface of the HMI. In addition, the operator can obtain guidance from the HMI on the operations that must be performed. The HMI may display the current fault and record historical faults.
The test system can simulate partial environment of the vehicle, mainly traction operation and electric braking operation. At the same time, mileage running tests (including traction, braking and high speed running conditions, as shown in the table below) can be performed.
The reaction frame device 4 comprises a reaction frame 41 and a traction pull rod device 42, the reaction frame 41 comprises a base 411, a sliding block 412, a lifting rod 414 and the traction pull rod device 42, the base 411 is provided with a sliding groove 413 matched with the sliding block 412, the sliding block 412 is connected with the lifting rod 414, the lifting rod 414 can drive the sliding block 412 to move along the sliding groove 413, and the moving direction of the sliding block 412 is parallel to the gravity direction of the sliding block 412. The sliding block 412 is fixedly connected with one end of the traction pull rod device 42, the other end of the traction pull rod device 42 is fixedly connected with the fake car body 11, the supporting direction of the traction pull rod device 42 is perpendicular to the moving direction of the sliding block 412, the position of the sliding block 412 in the vertical direction can be adjusted through the lifting rod 414, and therefore the center height of the traction pull rod device 42 is adjusted to adapt to detection of bogies of different types. Meanwhile, the fore-and-aft position adjustment of the bogie can be achieved by adjusting the length of the drawbar arrangement 42.
Specifically, the traction link device 42 includes a first mounting seat 421, a first link 422, a first nut 423, a second mounting seat 424, a second link 425, a second nut 426, and a positioning nut 427. The first mounting seat 421 is fixedly connected to the sliding block 412, one end of the first pull rod 422 is connected to the first mounting seat 421, and a thread engaged with the first thread insert 423 is disposed on an outer side of the other end of the first pull rod 422. The second mounting seat 424 is fixedly connected with the dummy car body 11, one end of the second pull rod 425 is connected with the second mounting seat 424, and the outer side of the other end of the second pull rod 425 is provided with a thread matched with the second threaded sleeve 426. The first pull rod 422 and the first mounting seat 421 can be detached, and the second pull rod 425 and the second mounting seat 424 can be detached, so that the pull rods with different lengths can be replaced conveniently to adapt to wheel tracks of bogies of different models. The first pull rod 422 and the first screw sleeve 423 as well as the second pull rod 425 and the second screw sleeve 426 are two sets of matched thread pairs, the rotating directions of the first pull rod and the second screw sleeve are opposite, flanges are arranged at the end parts of the first screw sleeve 423 and the second screw sleeve 426, and the first screw sleeve 423 and the second screw sleeve 426 are connected through the flanges and bolts. The first pull rod 422 and the second pull rod 425 are both provided with a positioning nut 427, one end of the first pull rod 422 is connected with the second threaded sleeve 426 and the second pull rod 425 through the first threaded sleeve 423, the other end of the first pull rod 422 is limited and fixed through the positioning nut 427, and the second pull rod 425 is fixed through the second threaded sleeve 426 and the positioning nut 427. The length between the first tie rod 422 and the second tie rod 425 can be adjusted by rotating the first screw sleeve 423 and the second screw sleeve 426 forwards or reversely, so that the length of the traction tie rod device 42 is adjusted, the purpose of adjusting the distance between the bogie and the reaction frame 41 is achieved, and the front and back positioning of the bogie is realized. If the first and second tie rods 422, 425 are not long enough, a transition rod may be added between the first and second threaded sleeves 423, 426 to extend the length of the drawbar arrangement 42.
The test bed adopts a rolling mode of the bogie and the track wheel pair, the actual or near actual bogie is fixed, and the highest test speed can reach 420 km/h. The transmission of dynamic and resisting moments is realized by adopting a bogie double-towing mode with the same specification, and energy feedback is realized between traction current conversion systems of two pairs of bogies. The test bed base platform 6 is provided with the track wheel pair units 2 corresponding to the bogies in parallel, the track wheel pair units are connected by the cardan shafts 52, and the synchronizer 5 is arranged, so that the bogies which are in active and passive relation with each other meet the synchronization requirement. The loading unit 1 adopts a dummy car body 11 and a balancing weight to simulate axle load, and reaction frames for fixing the dummy car body 11 are arranged in front of and behind the test bed. A rotating speed and torque transmission path among loading units is formed by the rail wheel pair unit 2, the upper platform walking unit 3, the reaction frame device 4, the synchronizer 5, the base platform 6 and the like. The test bed can be used for railway locomotive bogie performance test and delivery test, and can also be used for loading endurance and high-speed running-in verification test of each part of the bogie.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a locomotive, motor car bogie test device which characterized in that: comprises a loading unit (1), a track wheel pair unit (2) matched with the loading unit (1), an upper platform walking unit (3), a reaction frame device (4) and an electric transmission and control system used for driving the loading unit (1), the loading unit (1) comprises a fake vehicle body (2), a tested bogie group (12) and an auxiliary test bogie group (13) which are arranged below the fake vehicle body (2), the two ends of the false car body (2) are connected with the reaction frame device (4), the set of bogies to be tested (12) comprises at least one bogie, the set of bogies to be tested (13) comprises at least one bogie, the bogie of the tested bogie group (12) and the bogie of the test-accompanying bogie group (13) are steered the same, the tested bogie group (12) and the test-accompanying bogie group (13) are mutually loaded in a drag-to-drag manner.
2. A locomotive and motor car bogie test device according to claim 1, wherein: the number of the bogies of the tested bogie group (12) is the same as that of the bogies of the test-accompanying bogie group (13).
3. A locomotive and motor car bogie test device according to claim 2, wherein: the track wheel pair unit (2) number is two, is first track wheel pair unit (21) and second track wheel pair unit (22) respectively, first track wheel pair unit (21) and second track wheel pair unit (22) set up side by side, the quantity of loading unit (1) is two, and two loading units (1) cooperate with first track wheel pair unit (21) and second track wheel pair unit (22) respectively.
4. A locomotive and motor car bogie test device according to claim 3, wherein: the first track wheel pair unit (21) and the second track wheel pair unit (22) are connected through a coupler (23).
5. A locomotive and motor car bogie test device according to claim 4, characterized in that: the track wheel set unit is characterized by further comprising a synchronizing device (5), wherein the synchronizing device (5) comprises a synchronizing gear box (51) and a universal shaft (52), the synchronizing gear box (51) is connected with the track wheels of the track wheel set unit (2), and the synchronizing gear box (51) is connected with the universal shaft (52).
6. A locomotive and motor car bogie test device according to claim 1, wherein: the system also comprises a torque and rotating speed sensor for acquiring a torque and rotating speed signal of the rail wheel and a temperature sensor for acquiring a temperature signal of the bearing, wherein the sensors feed the acquired signal back to the electric transmission and control system.
7. A locomotive and motor car bogie test device according to claim 1, wherein: reaction frame device (4) include reaction frame (41) and pull rod device (42), reaction frame (41) include base member (411), slider (412) and lift bar (414), be equipped with spout (413) on base member (411), slider (412) with lift bar (414) are connected, lift bar (414) can drive slider (412) are followed spout (413) motion, the direction of motion of slider (412) is on a parallel with the direction of gravity of slider (412), pull rod device (42) one end with slider (412) fixed connection, the other end with dummy car body (2) fixed connection.
8. A locomotive and motor car bogie test device according to claim 7, characterized in that: the traction pull rod device (42) comprises a first mounting seat (421), a first pull rod (422), a first threaded sleeve (423), a second mounting seat (424), a second pull rod (425), a second threaded sleeve (426) and a positioning nut (427), wherein the first mounting seat (421) is fixedly connected with the sliding block (412), one end of the first pull rod (422) is connected with the first mounting seat (421), the outer side of the other end of the first pull rod (422) is provided with a thread, the second mounting seat (424) is fixedly connected with the fake car body (2), one end of the second pull rod (425) is connected with the second mounting seat (424), the outer side of the other end of the second pull rod (425) is provided with a thread, the first pull rod (422) and the second pull rod (425) are both provided with the positioning nut (427), the first threaded sleeve (423) is connected with the first pull rod (422) through a thread, the position is limited by the positioning nut (427), the second threaded sleeve (426) is connected with the second pull rod (425) through threads and limited by the positioning nut (427), flanges are arranged at the end parts of the first threaded sleeve (423) and the second threaded sleeve (426), and the first threaded sleeve (423) is connected with the second threaded sleeve (426) through the flanges and bolts.
9. A locomotive and motor car bogie test device according to claim 8, wherein: all be equipped with joint bearing (429) in first mount pad (421) and second mount pad (424), first mount pad (421) with connect through round pin axle (428) and joint bearing (429) between first pull rod (422), second mount pad (424) with connect through round pin axle (428) and joint bearing (429) between second pull rod (425).
10. A locomotive and motor car bogie test device according to claim 1, wherein: and a counterweight block is arranged on the false car body (2).
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CN202110500215.XA CN113092144A (en) | 2021-05-08 | 2021-05-08 | Locomotive, motor car bogie test device |
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