CN103616178B - EMU swing type power train assembly reliability test bench - Google Patents

Abstract

The invention discloses a high-speed EMU swing-type drive train assembly reliability test bench, which solves the problem in the prior art that the drive train is placed in a static environment to separately study the gearbox assembly or the traction motor, which includes a torque detection test device, drive train assembly test device, the traction motor and gearbox assembly fixing device in the drive train assembly test device includes the high-speed EMU gearbox fixing bracket assembly, and the high-speed EMU gearbox fixing bracket assembly includes the gearbox fixing bracket assembly Support base, C-type fixture support shaft assembly of gearbox and C-type hanger assembly of gearbox; the left half of the C-type fixture support shaft assembly of gearbox is horizontally placed on the upper end of the vertical column in the fixed support base of the gearbox , and fixed on both sides of the vertical column with T-shaped bolts, the right half of the C-type fixture support shaft assembly of the gearbox rotates through the C-type fixture support shaft hinge pin of the gearbox and the C-type hanger assembly of the gearbox connect.

Description

High-speed EMU oscillating drive train assembly reliability test bench

technical field

The invention relates to a test platform for detecting parameters of a rail vehicle drive train assembly, more specifically, the invention relates to a reliability test platform for a swing type drive train assembly of a high-speed EMU.

Background technique

At present, my country's EMU technology is developing rapidly. The maximum speed of EMUs in operation has reached 350km/h, and the maximum speed of EMUs under development is close to 500km/h. With the increase of train speed and vehicle axle load, the vibration between the vehicle and the track is intensified, the running stability of the vehicle is reduced, and the problems of train safety and ride comfort are becoming more and more prominent.

According to the analysis of train faults in actual operation, the drive train of high-speed trains is the weak link when trains run at high speed. Due to the large transmission torque, high gear speed and excessive vehicle vibration, the transmission system often has failures such as traction motor bearing fracture, gear box internal gear gluing, fracture, and coupling damage. If these failures occur in the actual operation of high-speed trains, serious traffic accidents will occur, causing serious losses in the lives and property of our people. Therefore, the construction of a high-speed EMU drive train reliability test bench to test the reliability of the high-speed EMU drive train has a very good role in promoting the development of high-speed train technology in my country, and has great social and economic benefits.

At present, the development of reliability testing technology for vehicle drive trains including rail trains and automobiles at home and abroad has been quite mature. Scholars and research institutions at home and abroad have developed a variety of methods to detect the fatigue reliability of the transmission gearbox or the traction motor, but these methods are to separate the gearbox or the traction motor in the transmission system for separate research. This kind of research method has a certain effect, and can analyze the cause of fatigue failure of a certain part of the drive train more thoroughly. However, in the actual operation of the train, the drive train is stressed as a whole, and the various components of the drive train are interacting with each other. This makes the method of reliability testing for a single component have great limitations. The evaluation of system reliability is not comprehensive enough. At the same time, the train is subject to great vibration when running on the track, and the vibration will be greater with the increase of vehicle speed, and the drive train will be subjected to cyclic stress and fatigue damage will occur. It is completely meaningless to conduct reliability tests if the drive train is placed in a static environment, that is, without external excitation.

At present, there have been many proposals to propose some high-speed EMU drive train assembly reliability test benches. Under the condition of simulating the vibration of the running track, the tested drive system can output torque normally and bear the load at the same time, and then study and discuss the transmission of high-speed rail trains. Fatigue damage of the system (including the traction motor and reducer system), respectively give the fatigue damage of the traction motor, coupling and reducer in the train transmission system, and point out which part of the transmission system is the weak link in the train operation . In order to optimize the design and manufacture of the train, it can ensure the safety and stability of the train at high speed. However, most of the existing schemes rigidly connect the tested transmission system (traction motor and gearbox) during the test. Since the test needs to rely on external excitation to make the relative displacement of the traction motor and the gearbox, this This lack of flexible connection can only rely on the deformation of some flexible parts of the drive train itself (such as rubber pads and other parts) to bear the huge internal force caused by relative displacement. The rigidity of these schemes is relatively large, and these schemes will still generate large internal forces inside the tested part during the test, which will inevitably cause certain damage to the tested part.

Contents of the invention

The purpose of the present invention is to provide a high-speed EMU swing drive train assembly reliability test bench, which overcomes the prior art problem of putting the drive train in a static environment to study the gearbox assembly or the traction motor separately, avoiding the The internal force caused by the rigid connection of the tested part is not damaged to the tested part.

In order to achieve the above object, the present invention adopts the following technical solutions to realize:

Provide a high-speed EMU oscillating drive train assembly reliability test bench, including torque detection test device 1, drive train assembly test device 2 and hydraulic control system, torque detection test device 1 and drive train assembly test device 2 through The cross-shaft universal coupling 3 is connected; the drive train assembly test device 2 includes a traction motor and gearbox assembly fixing device 19, and the traction motor and gearbox assembly fixing device 19 includes a high-speed EMU gear box fixing bracket assembly Body 51, the high-speed EMU gearbox fixed bracket assembly 51 includes a gearbox fixed support base 64, wherein the high-speed EMU gearbox fixed bracket assembly 51 also includes a gearbox C-type fixture support shaft assembly 65 and a gearbox C Type hanger assembly 66, the left half of the gear box C-shaped fixture support shaft assembly 65 straddles the two sides of the gear box fixed support base 64 and is fixed on the T-shaped gear box fixed support base 64 by T-shaped bolts. In the groove; the right half of the gear box C-type fixture support shaft assembly 65 is provided with a gearbox C-type fixture support shaft hinge pin 77, and the gearbox C-type hanger assembly 66 is hoisted on the gearbox C-type fixture On the supporting shaft hinge pin 77, it realizes rotational connection with the gear case C-type fixture supporting shaft assembly 65, and its axis of rotation is perpendicular to the long side of the supporting base bottom plate of the fixed supporting base 64 of the gear case.

According to the improvement scheme of the reliability test bench for a high-speed EMU oscillating powertrain assembly provided by the present invention, the gearbox C-type clamp support shaft assembly 65 also includes a gearbox C-type clamp support shaft 67 , No. 1 gearbox C-type fixture support shaft splint 68, No. 2 gearbox C-type fixture support shaft splint 69, No. 1 gearbox C-type fixture support shaft hinge plate 70, No. 2 gearbox C-type fixture support Shaft hinge plate 71, left round nut 72, right round nut 73, No. 1 gear box C-type fixture supporting shaft hinge plate nylon sleeve 74, No. 2 gear box C-type fixture supporting shaft hinge plate nylon sleeve 75 and gear Box C-type fixture support shaft hinge plate spacer 76, gear box C-type fixture support shaft 67 includes splint support shaft 82 and hinge plate support shaft 83; left round nut 72 and gearbox C-type fixture support shaft 67 left end Threaded connection, No. 1 gearbox C-type fixture support shaft splint 68 is set on the splint support shaft 82 of the gearbox C-type fixture support shaft 67, the left end surface of the No. 1 gearbox C-type fixture support shaft splint 68 and the left The right end faces of the side round nuts 72 are in contact, and the No. 2 gear box C-type fixture support shaft splint 69 is set on the splint support shaft 82 of the gearbox C-type fixture support shaft 67 and is fixedly connected with the splint support shaft 82. Gearbox C The hinge plate support shaft 83 of the type fixture support shaft 67 is sequentially set with the No. 1 gear box C-type fixture support shaft hinge plate nylon sleeve 74, the gear box C-type fixture support shaft hinge plate spacer 76 and Nylon cover 75 for the hinge plate of the C-type fixture support shaft of No. 2 gearbox, the right round nut 73 is threadedly connected with the right end of the C-type fixture support shaft 67 of the gearbox, and 75 nylon sleeves for the hinge plate support shaft of the C-type fixture of the No. The right end surface is in contact with the left end surface of the right side round nut 73, and the No. 1 gear box C-type fixture support shaft hinge plate 70 is sleeved on the outer circumferential surface of the No. 1 gear box C-type fixture support shaft hinge plate nylon sleeve 74. The C-type fixture support shaft hinge plate 71 of the No. 2 gearbox is set on the outer circumferential surface of the C-type fixture support shaft hinge plate nylon sleeve 75 of the No. 2 gearbox, and the C-type fixture support shaft hinge plate 70 of the No. The supporting shaft hinge plate 71 of the C-type fixture of the gear box No. The supporting shaft splint 68 and the No. 2 gear box C-type fixture supporting shaft splint 69 are respectively located on both sides of the fixed supporting base 64 of the gearbox and fixed in the T-shaped through grooves on both sides of the fixed supporting base 64 of the gearbox through T-shaped bolts. The axis of rotation of the gear box C-type fixture supporting shaft 67 is arranged horizontally and is perpendicular to the long side of the support base bottom plate of the gear box fixed support base 64 .

According to the improvement scheme of the reliability test bench for the oscillating power train assembly of high-speed EMUs provided by the present invention, the supporting shaft 67 of the C-type fixture of the gearbox is a stepped shaft, and the supporting shaft 67 of the C-shaped fixture of the gearbox is From the left end surface to the right end surface, there are supporting shaft No. 1 shoulder 78, supporting shaft No. 2 shoulder 79, supporting shaft No. 3 shoulder 80 and supporting shaft No. 4 shoulder 81. Threads are distributed between No. 1 shaft shoulder 78 and No. 1 shaft shoulder 78 of the support shaft and No. 2 shaft shoulder 79 of the support shaft is a splint support shaft 82, and the splint support shaft 82 is an optical axis. A ring-shaped protrusion is formed between the No. 3 shaft shoulders 80, the hinge plate support shaft 83 is between the No. 3 shaft shoulder 80 of the support shaft and the No. 4 shaft shoulder 81 of the support shaft, and the hinge plate support shaft 83 is an optical axis. Threads are distributed between the No. 4 shaft shoulder 81 and the right end face of the support shaft; the left round nut 72 is threadedly connected between the left end face of the C-type fixture support shaft 67 of the gearbox and the No. 1 shaft shoulder 78 of the support shaft. The hinge plate support shaft 83 between the support shaft No. 3 shoulder 80 of the support shaft 67 of the C-type fixture and the No. 4 shaft shoulder 81 of the support shaft is equipped with the No. 1 gear box C-type fixture support shaft hinge from left to right. Plate nylon cover 74, gear box C-type fixture support shaft hinge plate spacer 76 and No. 2 gearbox C-type fixture support shaft hinge plate nylon cover 75, No. 1 gearbox C-type fixture support shaft hinge plate nylon cover 74 The end face with a larger upper radius is in contact with the ring surface on the right side of the No. 3 shaft shoulder 80 of the upper support shaft 67 of the C-type fixture of the gearbox, and the upper radius of the hinge plate nylon sleeve 74 of the C-type fixture of the No. 1 gearbox is smaller. The small end surface is in contact with the left end surface of the hinge plate spacer 76 of the C-type fixture support shaft of the gearbox, and the right end surface of the C-type fixture support shaft hinge plate spacer 76 of the gearbox is hinged with the C-type fixture support shaft hinge of the No. 2 gearbox. The end face with smaller radius on the plate nylon sleeve 75 is in contact with each other, and the right round nut 73 is threadedly connected between the support shaft No. The end face of the clamp support shaft hinge plate nylon sleeve 75 with a larger radius is in contact with the left end face of the right round nut 73, and the left end face of the C-type clamp support shaft hinge plate 70 of the No. 1 gearbox is in contact with the C-type clamp of the No. 1 gear box. The torus at the shoulder of the supporting shaft hinge plate nylon sleeve 74 is in contact with the right end face of the supporting shaft hinge plate 70 of the No. 1 gearbox C-type fixture and the left end of the C-type fixture supporting shaft hinge plate spacer 76 of the gearbox Surface-to-face contact, the right end face of the hinge plate 71 of the supporting shaft of the C-type fixture of the No. The left end face of type clamp support shaft hinge plate 71 contacts with the right end face of gearbox C type clamp support shaft hinge plate spacer 76.

According to the improvement plan of the reliability test bench for a swing type powertrain assembly of high-speed EMUs provided by the present invention, the support shaft splint 68 of the No. 1 gearbox C-type fixture and the No. 2 gearbox C-type fixture support The shaft splint 69 has the same structure, the No. 1 gear box C-type fixture support shaft splint 68 is a rectangular plate, and the No. 1 gear box C-type fixture support shaft splint 68 is provided with a circular through hole above the circular through hole. There are eight oblong through-holes at the bottom, and the circular through-holes set above the C-type fixture support shaft splint 68 of the No. 1 gearbox and the C-type fixture support shaft splint 69 of the No. 2 gearbox are all set in the C-type On the splint support shaft 82 of the fixture support shaft 67; the No. 1 gearbox C-type fixture support shaft hinge plate 70 has the same structure as the No. 2 gearbox C-type fixture support shaft hinge plate 71, and the No. 1 gearbox C-type The fixture support shaft hinge plate 70 is an oblong plate, and a circular through hole is provided above and below the C-type fixture support shaft hinge plate 70 of the No. 1 gearbox; the No. 1 gearbox C-type fixture supports The shaft hinge plate nylon sleeve 74 has the same structure as the nylon sleeve 75 of the C-type fixture support shaft hinge plate of the No. 2 gearbox, and there is a The shaft shoulder, and the shaft shoulder and the right end face form a ring-shaped protrusion, the No. 1 gear box C-type fixture supports the shaft hinge plate nylon sleeve 74, and the middle is a circular through hole along the axial direction; the gear box C-type fixture The support shaft hinge plate spacer 76 is a tubular structural member along the axial direction; the gear box C-type fixture support shaft hinge pin 77 is a cylindrical structural member, and an annular ring groove is arranged on the outer peripheral surface of one end , the other end is a hexagonal pin head, a circular circlip is installed in the circlip groove, and the right end surface of the circular circlip is in contact with the left end surface of the supporting shaft hinge plate 70 of the C-type fixture of the No. 1 gearbox, 2 The right end face of No. gear box C type fixture supporting shaft hinge plate 71 contacts with the inner surface of bearing pin head.

According to the improvement scheme of the reliability test bench of a swing type powertrain assembly of a high-speed EMU provided by the present invention, the gearbox C-type hanger assembly 66 includes a gearbox C-type swing tube welding fixture 84, No. 1 gearbox rubber pad 85, No. 2 gearbox rubber pad 86, No. 1 gearbox C-type fixture pin nylon sleeve 87 and No. 2 gearbox C-type clamp pin nylon sleeve 88, gearbox C-type The swing pipe welding fixture 84 is a tubular structure, which includes a vertical pipe fitting and two horizontal pipe fittings vertically installed at both ends of the vertical pipe fitting, the No. 1 gear box rubber pad 85 and the No. 2 gear box rubber pad 86 They are respectively installed on the insides of both ends of the C-type swing pipe welded clamps 84 of the gearbox, and the positions are opposite. The pin shaft nylon sleeve 87 of the C-type clamp of the No. 1 gearbox and the Nylon sleeve 88 of the C-type clamp pin of the No. 2 gearbox are installed symmetrically. Two sides of the horizontal pipe fitting at one end of the C-type swing pipe welded fixture 84 of the gearbox; the C-type fixture pin nylon sleeve 87 of the No. 1 gearbox and the C-type fixture pin nylon sleeve 88 of the No. 2 gearbox are set on On the gear box C-type clamp support shaft hinge pin 77 of the gear box C-type clamp support shaft assembly 65, realize the rotational connection.

According to the improvement scheme of the reliability test bench of a swing type powertrain assembly of high-speed EMUs provided by the present invention, the C-type swing tube welded fixture 84 of the gearbox specifically includes a vertical support tube 89, an upper lateral support The tube 90, the lower transverse support tube 91, the upper transverse connecting plate 92 and the lower transverse connecting plate 93, the vertical supporting tube 89, the upper transverse supporting tube 90 and the lower transverse supporting tube 91 are the same rounded rectangular cross section and the same size. As for the tubular structure, four circular through holes are respectively arranged on the upper and lower horizontal pipe walls of the upper transverse support pipe 90, and the four circular through holes on the upper pipe wall of the upper transverse support pipe 90 are connected with the four circular through holes on the lower pipe wall. Four circular through-holes correspond one by one, one circular through-hole is respectively arranged on the vertical pipe walls on both sides of the upper transverse support pipe 90, and four circular through-holes are respectively arranged on the upper and lower horizontal pipe walls of the lower transverse support pipe 91. The four circular through holes on the upper tube wall of the lower transverse support tube 91 correspond one-to-one to the four circular through holes on the lower tube wall, and the upper transverse connecting plate 92 and the lower transverse connecting plate 93 are structural The same cross-section is a U-shaped plate, and the upper transverse connecting plate 92 is welded to the lower horizontal pipe wall of the upper transverse supporting pipe 90. The upper transverse connecting plate 92 is provided with four upper and lower horizontal pipes with the upper transverse supporting pipe 90. The four circular through-holes on the pipe wall correspond to the circular through-holes one by one. The lower transverse connection plate 93 is welded to the upper horizontal pipe wall of the lower transverse support pipe 91. The lower transverse connection plate 93 is provided with four The four circular through holes on the upper and lower two horizontal pipe walls of the transverse support tube 91 correspond to the circular through holes one by one. The support pipe 89 is vertically distributed, two isosceles right triangle vertical reinforcements are welded between the upper transverse connecting plate 92 and the side of the vertical supporting pipe 89, and the lower transverse connecting plate 93 and the side of the vertical supporting pipe 89 are welded There are two isosceles right-angled triangle vertical ribs; No. 1 gear box rubber pad 85 and No. 2 gear box rubber pad 86 have the same structure, No. 1 gear box rubber pad 85 and No. 2 gear box rubber pad 86 There are four circular through-holes distributed on the upper and lower surfaces; No. 1 gearbox C-type fixture pin nylon sleeve 87 and No. 2 gearbox C-type fixture pin nylon sleeve 88 have the same structure, and No. 1 gearbox C-type fixture pin nylon sleeve 88 has the same structure. The pin shaft nylon sleeve 87 is installed in the circular through hole of the side pipe wall of the upper transverse support pipe 90, and the annular surface at the shoulder of the C-type clamp pin nylon sleeve 87 of the No. 1 gear box is in contact with the upper transverse support pipe 90. The sides of the No. 2 gearbox C-type fixture pin nylon sleeve 88 are installed in the circular through hole on the other side of the upper lateral support tube 90, and the No. 2 gearbox C-type fixture pin nylon sleeve 88 The torus at the shoulder of the shaft contacts the side of the upper transverse support tube 90.

According to the improvement scheme of the reliability test bench of a kind of high-speed EMU oscillating transmission system assembly provided by the present invention, the said traction motor and gearbox assembly fixing device 19 also includes traction motor fixing jig assembly 49, traction The motor fixing jig assembly 49 is fixedly connected with the cast iron platform 5 by bolts. The traction motor fixing jig assembly 49 includes a traction motor fixing hanger 52 and a traction motor connecting lug plate 53; the traction motor fixing hanger 52 consists of a It consists of a rectangular bottom plate, a support plate and multiple rib plates. The support plate is welded and fixed vertically on the rectangular bottom plate. Multiple rib plates are welded and fixed between the back of the support plate and the top of the rectangular bottom plate. The front side of the support plate is set There are a plurality of vertical T-shaped slots for installing the traction motor connection lug plate 53; the traction motor connection lug plate 53 is welded by the traction motor connection lug plate vertical support plate 54 and a plurality of special-shaped support seats, and the traction The vertical support plate 54 of the motor connection lug plate is evenly distributed with a plurality of circular through holes along the four sides, and is fixedly connected to the vertical T-shaped groove on the front side of the fixed hanging seat 52 of the traction motor by T-shaped bolts.

According to the improvement scheme of the reliability test bench for the oscillating drive train assembly of the high-speed EMU provided by the present invention, the vertical surface of the vertical support plate 54 of the traction motor connecting lug plate is welded with two rows of vertical There are four risers with the same mechanism and inclined lower surface in the first row. From left to right, there are No. 1 traction motor connecting lug riser No. 55 and No. 2 risers. The traction motor is connected to the vertical plate of the lug plate 56, the No. 3 traction motor is connected to the vertical plate of the lug plate 57, and the No. 4 traction motor is connected to the vertical plate of the lug plate 58; the vertical surface of the vertical support plate 54 of the traction motor connected to the lug plate is welded The second row of vertical plates is respectively No. 4 traction motor connection support base 62 and No. 5 traction motor connection support base 63 from left to right.

According to the improvement scheme of the reliability test bench for the oscillating drive train assembly of the high-speed EMU provided by the present invention, the No. 1 traction motor is connected to the upper surface of the lug plate vertical plate 55 welded with the No. 1 traction motor connection support Seat 59, the upper surface of No. 1 traction motor connecting support seat 59 has a groove arranged transversely through the upper surface, and there is a threaded hole in the groove; said No. No. 2 traction motor connection support seat 60 is welded on the upper surface of traction motor connection lug plate vertical plate 57, No. 2 traction motor connection support seat 60 spans No. 2 traction motor connection lug plate vertical plate 56 and No. 3 traction motor connection On the upper surface of the lug plate vertical plate 57, on the upper surface of the No. 2 traction motor connecting support seat 60, there is a groove arranged horizontally through the upper surface, and there are two threaded holes in the groove, corresponding to the No. 2 traction motor connecting crane respectively. The lug plate vertical plate 56 is connected with the No. 3 traction motor and the lug plate vertical plate 57; the upper surface of the No. 4 traction motor connected with the lug plate vertical plate 58 is welded with the No. 3 traction motor connection support seat 61, and the No. 3 traction motor is connected The upper surface of the supporting seat 61 has a groove arranged transversely through the upper surface, and there is a threaded hole in the groove; the No. 4 traction motor connecting supporting seat 62 and the No. 5 traction motor connecting supporting seat 63 have the same structure, and the front The vertical surface has a horizontally arranged groove that runs through the front vertical surface, and there is a threaded hole in the groove; the No. 4 traction motor connection support seat 62 is located at the No. 1 traction motor connection hanger plate vertical plate 55 and No. 2 The traction motor is connected between the lug plate vertical plates 56; the No. 5 traction motor connection support seat 63 is located between the No. 3 traction motor connection lug plate vertical plate 57 and the No. 4 traction motor connection lug plate vertical plate 58.

Compared with prior art, the beneficial effect of the present invention is:

1. The reliability test bench of the high-speed EMU oscillating transmission system assembly of the present invention can realize the reliability test of the complete transmission system of the high-speed EMU, which is different from the previous reliability analysis of the drive train traction motor or gearbox Compared with testing the complete drive train, it is more realistic to reflect the fatigue damage condition of the drive train, and can easily and intuitively find out the vulnerable parts of the drive train under vibration conditions.

2. The high-speed EMU oscillating drive train assembly reliability test bench of the present invention applies external excitation to the high-speed EMU traction motor and the gearbox assembly to simulate the vibration situation of the high-speed EMU in actual track operation, which is a high-speed EMU. The reliability test of the power train of the EMU provides a good test basis and ensures the accuracy and correctness of the test.

3. The swingable high-speed EMU gear box fixed bracket assembly unique to the high-speed EMU oscillating drive train assembly reliability test bench of the present invention enables the gear box to revolve around the gear within a certain range during the test process. The supporting shaft of the C-type fixture of the box rotates, which avoids the internal force of the tested part caused by the rigid fixation of the pinion end of the gearbox, and protects the tested part.

4. The reliability test bench for the oscillating power train assembly of the high-speed EMU described in the present invention can realize the torque measurement of a wide range of vehicle speeds. The measured vehicle speed is 420Km/h under dynamic conditions and up to 500Km/h under static conditions. It can completely meet the fatigue reliability detection of the high-speed rail vehicle drive train in operation or under development in my country, and has good social and economic benefits.

5. The structural design of the reliability test bench for the oscillating drive train assembly of the high-speed EMU described in the present invention is reasonable, and the parts are installed on the test platform by means of T-bolt fixed connection. If a part breaks down, It can be easily repaired or replaced, and greatly improves the test efficiency of the reliability test of the drive train assembly of the high-speed EMU.

6. The high-speed EMU swing drive train assembly reliability test bench of the present invention is equipped with a self-protection device, which will automatically cut off the connection when the torque is too large to protect equipment and staff.

Description of drawings

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is the isometric projection diagram that the high-speed EMU oscillating type power train assembly reliability test bench structure of the present invention is formed;

Fig. 2 is the front view of the structure composition of high-speed EMU oscillating drive train assembly reliability test bench structure;

Fig. 3 is an isometric projection view of the structural composition of the drive train assembly test device of the present invention;

Fig. 4 is an isometric projection diagram of the structural composition of the three-degree-of-freedom vibration simulation test device of the present invention;

Fig. 5 is the front view of the vibrating T-shaped beam of the present invention;

Fig. 6 is a front view of the structure of the axle box bearing test shaft assembly according to the present invention;

Fig. 7 is an isometric projection view of the axle box bearing test shaft according to the present invention;

Fig. 8 is an isometric projection view of the structural composition of No. 1 simulated wheel support bearing seat according to the present invention;

Fig. 9 is a full sectional view on the front view of the structural composition of No. 1 simulated wheel support bearing seat according to the present invention;

Fig. 10 is an isometric projection view of the structural composition of the traction motor and the gear box assembly fixing device according to the present invention;

Fig. 11 is an isometric projection view of the structure of the traction motor fixing jig assembly according to the present invention;

Fig. 12 is an isometric projection view of the lug plate connected to the traction motor according to the present invention;

Fig. 13 is an isometric projection view of the connection relationship between the high-speed EMU gearbox fixed bracket assembly and the high-speed EMU gearbox of the present invention;

Fig. 14 is an isometric projection view of the fixed support base of the gearbox according to the present invention;

Fig. 15 is an isometric projection view of the structural composition of the C-type clamp support shaft assembly of the gearbox according to the present invention;

Fig. 16 is a full sectional view on the front view of the structural composition of the C-type clamp support shaft assembly of the gearbox according to the present invention;

Fig. 17 is an isometric projection view of the supporting shaft of the C-type fixture of the gearbox according to the present invention;

Fig. 18 is an isometric projection view of the supporting shaft splint of the No. 1 gearbox C-type fixture according to the present invention;

Fig. 19 is an isometric projection view of the supporting shaft hinge plate of the No. 1 gearbox C-type fixture according to the present invention;

Fig. 20 is an isometric projection view of the nylon sleeve of the hinge plate supporting shaft of the No. 1 gearbox C-type fixture according to the present invention;

Fig. 21 is an isometric projection view of the C-type fixture support shaft hinge pin of the gearbox according to the present invention;

Fig. 22 is an isometric projection view of the structure of the gear box C-type hanger assembly according to the present invention;

Fig. 23 is a rear view of the structural composition of the gearbox C-type hanger assembly according to the present invention;

Fig. 24 is a rear view of the C-shaped swing tube welded fixture of the gearbox according to the present invention;

Fig. 25 is an isometric projection view of the No. 1 gearbox rubber pad according to the present invention;

Fig. 26 is a schematic structural diagram of the hydraulic control system of the high-speed EMU oscillating drive train assembly reliability test bench according to the present invention.

In the figure: 1. Torque detection test device, 2. Drive train assembly test device, 3. Cross shaft universal coupling, 4. Rectangular bearing platform, 5. Cast iron platform, 6. Vibrating T-beam, 7. FM motor, 8. Overload protection mechanism assembly, 9. Flange torque meter, 10. Coupling and torque meter connection mechanism, 11. Axle box bearing test shaft, 12. Transverse actuator, No. 13.1 Vertical Actuators, No. 14.2 vertical actuator, No. 15.1 longitudinal restraint rod, No. 16.2 longitudinal restraint rod, No. 17.3 longitudinal restraint rod, 18. Three-degree-of-freedom vibration simulation test device, 19. Traction motor and gearbox assembly fixed Device, 20. Shaft assembly for axle box bearing test, 21. Upper left longitudinal tie rod seat, 22. Lower longitudinal tie rod seat, 23. Upper right longitudinal tie rod seat, 24. Left vertical actuator connection seat, 25. Right vertical Actuator connecting seat, 26. Transverse actuator seat, 27. High-speed EMU gearbox, No. 28.1 simulated wheel support bearing seat, No. 29.2 simulated wheel support bearing seat, 30.1 simulated wheel support bearing seat left round nut and Stop washer, No. 31.2 simulated wheel support bearing seat right round nut and stop washer, No. 32.1 shoulder, No. 33.2 shoulder, No. 34.3 shoulder, No. 35.4 shoulder, No. 36.5 shoulder, No. 37.6 shaft Shoulder, No. 38.7 shaft shoulder, No. 39.8 shaft shoulder, No. 40.1 simulated wheel support bearing seat shaft, 41. High-speed EMU gearbox shaft, No. 42.2 simulated wheel support bearing seat shaft, No. 43.1 simulated wheel support bearing housing, 44.1 No. 45.1 simulated wheel support bearing left end cover, No. 45.1 simulated wheel support bearing right end cover, No. 46.1 simulated wheel support bearing left labyrinth oil seal, No. 47.1 simulated wheel support bearing right labyrinth oil seal, No. 48.1 support seat bearing, 49 .Traction motor fixed jig assembly, 50. High-speed EMU traction motor, 51. High-speed EMU gearbox fixed bracket assembly, 52. Traction motor fixed hanger, 53. Traction motor connecting lug plate, 54. Traction motor Connect the vertical support plate of the lifting lug plate, the No. 55.1 traction motor is connected with the lifting lug vertical plate, the No. 56.2 traction motor is connected with the lifting lug vertical plate, the No. 57.3 traction motor is connected with the lifting lug vertical plate, and the No. 58.4 traction motor is connected with the lifting lug plate Vertical plate, No. 59.1 Traction motor connection support base, No. 60.2 Traction motor connection support base, No. 61.3 Traction motor connection support base, No. 62.4 Traction motor connection support base, No. 63.5 Traction motor connection support base, 64. Gear box fixed support base , 65. Gearbox C-type fixture support shaft assembly, 66. Gearbox C-type hanger assembly, 67. Gearbox C-type fixture support shaft, No. 68.1 Gearbox C-type fixture support shaft splint, No. 69.2 C-type fixture support shaft splint of gearbox, No. 70.1 Gearbox C-type fixture support shaft hinge plate, No. 71.2 Gearbox C-type fixture support shaft hinge plate, 72. Left round nut, 73. Right round nut, No. 74.1 gearbox type C Nylon cover for clamp support shaft hinge plate, 75.2 Nylon cover for clamp support shaft hinge plate of C-type gear box, 76. Gear box C-type clamp support shaft hinge plate spacer, 77. Gear box C-type clamp support shaft hinge Pin shaft, 78. Supporting shaft No. 1 shoulder, 79. Supporting shaft No. 2 shoulder, 80. Supporting shaft No. 3 shoulder, 81. Supporting shaft No. 4 shoulder, 82. Splint supporting shaft, 83. Hinge plate supporting Shaft, No. 84. Gearbox Type C swing tube welding clamp, No. 85.1 Gearbox rubber cushion block, No. 86.2 Gearbox rubber cushion block, No. 87.1 Gearbox Type C fixture pin nylon sleeve, No. 88.2 Gearbox Type C Fixture pin shaft nylon sleeve, 89. Vertical support pipe, 90. Upper transverse support pipe, 91. Lower transverse support pipe, 92. Upper transverse connecting plate, 93. Lower transverse connecting plate, 94. Host computer, 95. Emergency Stop switch, 96. hydraulic system controller, 97. lateral actuator solenoid valve, No. 98.1 vertical actuator solenoid valve, No. 99.2 vertical actuator solenoid valve, 100. hydraulic pump station.

Detailed ways

The present invention is described in detail below in conjunction with accompanying drawing:

The invention provides a reliability test bench for a swing type drive train assembly of a high-speed EMU to meet the reliability parameter detection requirements of a rail vehicle drive train assembly under various operating conditions. The test bench adopts a reasonable structural design of the load simulation system, which avoids the danger and loss caused by the destructive test on the actual running vehicle, and applies external excitation to the traction motor and gearbox assembly of the high-speed EMU to simulate The vibration of the high-speed EMU in the actual track operation provides a good test basis for the reliability test of the high-speed EMU drive train, ensuring the accuracy and correctness of the test. The unique swingable high-speed EMU gearbox The fixed bracket assembly enables the gearbox to rotate around the supporting shaft 67 of the gearbox C-type fixture within a certain range during the test, avoiding the internal force of the tested part caused by the rigid fixation of the pinion end of the gearbox, Protect the component under test. The tests done are all destructive tests, so that the cause of the failure of the traction motor bearing or gearbox assembly of the tested high-speed train and the specific technical parameters can be accurately given. The research on the reliability of the high-speed EMU drive train assembly has high social value and extensive social significance, and it has a good role in promoting the safe operation of the EMU, the improvement of the riding comfort of the EMU, and the development of the technology of the EMU. At the same time, there are good social and economic benefits.

Referring to Fig. 1 to Fig. 3, the high-speed EMU oscillating drive train assembly reliability test bench according to the present invention includes a torque detection test device 1, a drive train assembly test device 2 and a hydraulic control system. The torque detection test device 1 is connected with the drive train assembly test device 2 through a cross-shaft universal joint 3. The torque detection test device 1 includes a rectangular bearing platform 4, a frequency modulation motor 7, an overload protection mechanism assembly 8, a method The blue torque meter 9 and the connecting mechanism 10 between the coupling and the torque meter, the frequency modulation motor 7, the overload protection mechanism assembly 8, the flange type torque meter 9 and the connecting mechanism 10 between the coupling and the torque meter are fixed on the In the T-shaped groove on the upper surface of the rectangular bearing platform 4, and the position can be adjusted on the upper surface of the rectangular bearing platform 4 according to the needs of the test, the power output shaft of the frequency modulation motor 7 is connected with the left end surface of the overload protection mechanism assembly 8 by a key, When the system is overloaded, the connection key in the overload protection mechanism assembly 8 will break, cut off the power output, and protect the test bench components and the test piece. The right end face of the overload protection mechanism assembly 8 and the rotating shaft in the flange torque meter 9 The left end of the flange torque meter 9 can accurately detect the torque applied by the frequency modulation motor 7 to the test piece to ensure the controllability of the experimental process. The right end of the rotor in the flange torque meter 9 and the coupling The left end of the rotating shaft in the torque meter connecting mechanism 10 is bolted, and the right end of the shaft coupling and the rotating shaft in the torque meter connecting mechanism 10 is connected with the left end of the cross shaft universal joint 3 by bolts, and the frequency modulation motor 7 The power output shaft, the overload protection mechanism assembly 8 and the rotating shaft of the flange type torque meter 9 should be kept in a concentric state at all times, and the frequency modulation motor 7 in the torque detection test device 1 is the shaft in the drive train assembly test device 2. The shaft 11 for the box bearing test provides the driving torque, and the shaft 11 for the drive box bearing test rotates at different speeds. During the test, the drive train assembly test device 2 and the torque detection test device 1 will produce relative displacements. The cross shaft type The use of the universal joint 3 realizes the flexible transmission of power. The upper surface of the rectangular bearing platform 4 in the torque detection test device 1, the cast iron platform 5 in the drive train assembly test device 2, and the vibrating T-shaped beam 6 in the drive train assembly test device 2 are all provided with several holes along the long side direction. The T-shaped slots parallel to each other can conveniently install and position the test equipment when performing related tests and adjust the position of the test equipment according to the test needs. The rectangular bearing platform 4 and the cast iron platform 5 are cuboid cast iron structural parts, which are fixedly connected to the foundation of the test bench through anchor bolts. The upper surfaces of the rectangular bearing platform 4 and the cast iron platform 5 are in the same horizontal plane. The vibrating T-beam 6 is a T-shaped box structure, which can be made by casting or steel plate welding. The vibrating T-beam 6 passes through the transverse actuator 12 and No. 1 vertical Actuator 13, No. 2 vertical actuator 14, No. 1 longitudinal restraint rod 15, No. 2 longitudinal restraint rod 16 and No. 3 longitudinal restraint rod 17 are connected to the foundation of the test bench. Transverse actuator 12, No. 1 The vertical actuator 13 and the No. 2 vertical actuator 14 have the same structure, both are electro-hydraulic servo actuators with ball joints at both ends, and the lateral actuator 12 provides lateral excitation force for the vibrating T-beam 6 , No. 1 vertical actuator 13 and No. 2 vertical actuator 14 provide vertical excitation force for the vibrating T-shaped beam 6, No. 1 longitudinal restraint rod 15, No. 2 longitudinal restraint rod 16 and No. 3 longitudinal restraint rod 17 have the same structure and are tubular structural members with ball joint bearings at both ends. One end is fixed on the same side of the vibrating T-beam 6 to form a triangle arrangement, and the other end is fixedly connected to the foundation of the test bench to stabilize the vibrating T-beam 6. function, and ensure that the vibrating T-beam 6 can vibrate within a certain range in the vertical direction.

Referring to Fig. 3 to Fig. 5, the drive train assembly test device 2 of the present invention also includes a three-degree-of-freedom vibration simulation test device 18, a traction motor and gearbox assembly fixing device 19 and an axle box bearing test shaft assembly 20 . The three-degree-of-freedom vibration simulation test device 18 is placed side by side with the traction motor and the gear box assembly fixing device 19, and the long side of the upper surface of the T-shaped beam 6 in the three-degree-of-freedom vibration simulation test device 18 and the traction motor and the gear box assembly The T-shaped grooves on the upper surface of the cast iron platform 5 in the fixing device 19 are parallel, the left end surface and the right end surface of the T-shaped beam 6 are respectively coplanar with the left end surface and the right end surface of the cast iron platform 5, and the shaft assembly 20 used for the axle box bearing test The No. 1 simulated wheel support bearing seat 28 and the No. 2 simulated wheel support bearing seat 29 are fixedly connected to the T-shaped groove on the upper surface of the T-shaped beam 6 in the three-degree-of-freedom vibration simulation test device 18 through T-shaped bolts, and the axle box The axis of rotation of the axle box bearing test shaft 11 in the bearing test shaft assembly 20 is parallel to the T-shaped groove on the upper surface of the T-shaped beam 6 .

The three-degree-of-freedom vibration simulation test device 18 includes a vibrating T-shaped beam 6, a transverse actuator 12, a No. 1 vertical actuator 13, a No. 2 vertical actuator 14, a No. 1 longitudinal restraint rod 15, and a No. 2 longitudinal restraint Pull rod 16 and No. 3 longitudinal restraint tie rod 17. The vibrating T-beam 6 is a box-like structure, and the top view and the front view of the vibrating T-beam 6 are T-shaped. The front side (upper left end, lower end, and upper right end) of the vibrating T-shaped beam 6 is provided with an upper left longitudinal tie rod seat 21, a lower end longitudinal tie rod seat 22 and an upper right longitudinal tie rod seat 23, and the lower surface (bottom surface) of the left upper end and the upper right end of the vibrating T-shaped beam 6 ) is provided with a left vertical actuator connection seat 24 and a right vertical actuator connection seat 25, and the left vertical actuator connection seat 24 and the right vertical actuator connection seat 25 are sequentially connected with the left upper longitudinal rod seat 21 It is connected with the position of the upper right longitudinal tie rod seat 23 and is at right angles to each other. The right end face of the vibrating T-shaped beam 6 is provided with a transverse actuator seat 26, and the position of the transverse actuator seat 26 is connected with the position of the upper right longitudinal tie rod seat 23 and is at right angles to each other. The vibrating T-shaped beam 6 can be made by casting or by welding steel plates. The upper working surface of the vibrating T-shaped crossbeam 6 is provided with a plurality of T-shaped slots parallel to each other and distributed along the longitudinal direction.

The upper ends of two No. 1 vertical actuators 13 and No. 2 vertical actuators 14 with the same structure are sequentially connected to the left vertical actuator connecting seat 24 and The right vertical actuator connecting seat 25 is fixedly connected, and the lower ends of two No. 1 vertical actuators 13 and No. 2 vertical actuators 14 with the same structure are welded or bolted to the foundation in turn. The front end of the No. 1 longitudinal restraint rod 15 is fixedly connected with the upper left longitudinal rod seat 21 on the vibrating T-beam 6 through bolts, the rear end of the No. 1 longitudinal restraint rod 15 is fixed on the foundation, and the front end of the No. 2 longitudinal restraint rod 16 is connected by bolts It is fixedly connected with the upper right longitudinal tie rod seat 23 on the vibrating T-shaped beam 6, the rear end of the No. 2 longitudinal restraint tie rod 16 is fixed on the foundation, and the front end of the No. 3 longitudinal restraint tie rod 17 is connected to the lower end of the vibrating T-shaped beam 6 through bolts. The rod seat 22 is fixedly connected, and the rear end of No. 3 longitudinal restraint rod 17 is fixed on the foundation. Three sets of No. 1 longitudinal restraint rod 15, No. 2 longitudinal restraint rod 16 and No. 3 longitudinal restraint rod 17 with the same structure are arranged in an isosceles triangle, and No. 1 longitudinal restraint rod 15, No. Pull rod 17 is arranged horizontally. The left end of the transverse actuator 12 is fixedly connected with the transverse actuator seat 26 on the right end surface of the vibrating T-shaped beam 6 through bolts, and the right end of the transverse actuator 12 is fixed on the foundation.

Referring to Fig. 6 to Fig. 9, described shaft box bearing test shaft assembly 20 includes shaft box bearing test shaft 11, high-speed EMU gearbox 27, No. 1 simulated wheel support bearing seat 28, No. 2 simulated wheel support Bearing seat 29, No. 1 simulated wheel support bearing seat left round nut and stop washer 30 and No. 2 simulated wheel support bearing seat right side round nut and stop washer 31. Axle box bearing test shaft 11 is a shaft with No. 1 shaft shoulder 32, No. 2 shaft shoulder 33, No. 3 shaft shoulder 34, No. 4 shaft shoulder 35, No. 5 shaft shoulder 36, and No. 6 shaft from the left end face to the right end face Shoulder 37, No. 7 shoulder 38, and No. 8 shoulder 39 are stepped shafts with a total of 8 shoulders. The shaft diameter decreases from the middle to both ends in turn. The No. 1 simulated wheel support bearing housing shaft 40 of the No. 1 simulated wheel support bearing housing 28, the left end of the No. 1 simulated wheel support bearing housing shaft 40 is provided with an external thread and an axial flat key groove, and the No. 7 shaft shoulder 38 and 8 Between the No. 3 shoulders is the No. 2 simulated wheel support bearing shaft 42 installed with the No. 2 simulated wheel support bearing housing 29. The right end of the No. 2 simulated wheel support bearing housing shaft 42 is provided with an external thread and an axial flat key slot , Between the No. 4 shaft shoulder 35 and the No. 5 shaft shoulder 36 is the high-speed EMU gearbox shaft 41 installed with the high-speed EMU gearbox 27. The position to the right of the central cross-section of shaft 11.

The No. 1 simulated wheel support bearing seat 28 is set on the No. 1 simulated wheel support bearing seat shaft 40 of the axle box bearing test shaft 11, and the right end face of the No. 1 simulated wheel support bearing seat 28 is connected to the axle box bearing test axle 11. The ring surface contact connection on the left side of No. 33 shoulder, the round nut on the left side of No. 1 simulated wheel support bearing seat and the stop washer 30 are set on the No. 1 simulated wheel support bearing seat on the left side of No. 1 simulated wheel support bearing seat 28 Threaded connection on the shaft 40, that is, use the No. 2 shoulder 33 and the left round nut and the stop washer 30 of the No. 1 simulated wheel support bearing seat to perform axial locking and positioning of the No. 1 simulated wheel support bearing seat 28; The wheel support bearing seat 29 is set on the No. 2 simulated wheel support bearing seat shaft 42 of the axle box bearing test shaft 11, and the left end face of the No. 2 simulated wheel support bearing seat 29 and the No. 7 shoulder of the axle box bearing test axle 11 The ring surface contact connection on the right side of 38, the round nut on the right side of the No. 2 simulated wheel support bearing seat and the stop washer 31 are set on the No. 2 simulated wheel support bearing seat shaft 42 on the right side of the No. 2 simulated wheel support bearing seat 29 Threaded connection, that is, use the No. 7 shoulder 38 and the right round nut and stop washer 31 of the No. 2 simulated wheel support bearing seat to perform axial locking and positioning of the No. 2 simulated wheel support bearing seat 29; the high-speed EMU gearbox 27 It is the transmission part actually used on the high-speed train set, and is sleeved on the high-speed train set gearbox shaft 41 of the axle box bearing test shaft 11.

No. 1 simulated wheel support bearing seat 28 has the same structure as No. 2 simulated wheel support bearing seat 29. No. 1 simulated wheel support bearing housing 28 includes No. 1 simulated wheel support bearing housing 43, No. 1 simulated wheel support bearing left end cover 44, No. 1 simulated wheel support bearing right end cover 45, and No. 1 simulated wheel support bearing left end cover Side labyrinth oil seal 46, No. 1 simulated wheel support bearing seat right side labyrinth oil seal 47 and No. 1 support seat bearing 48.

No. 1 simulated wheel support housing 43 is a supporting structure welded by a base plate, a support cylinder, a vertical support plate, a front T-shaped support plate, a rear T-shaped support plate and a plurality of stiffener plates. For structural parts, the vertical support plate is fixed on the bottom plate, and the support cylinder is fixed on the top of the vertical support plate. The rotation axis of the support cylinder is parallel to the upper surface of the bottom plate and perpendicular to the vertical support plate. The two sides of the support plate are respectively welded and fixed with three stiffener plates with the same structure, and the bottom plates on both sides of the stiffener plate are provided with circular through holes for bolt insertion, the front T-shaped support plate, the rear T-shaped support plate and The two ends of the vertical support plate are fixedly connected with both sides of the support cylinder; the No. 1 support seat bearing 48 is installed in the round hole of the support cylinder at the upper end of the No. 1 simulated wheel support bearing seat housing 43, and the No. 1 support seat bearing 48 It is a double-row tapered roller bearing, which can bear heavy compound (radial and axial) loads, has strong rigidity, can be axially fixed in both directions, and has a certain axial clearance or a certain preload . The left and right sides of No. 1 supporting seat bearing 48 are successively installed with No. 1 simulated wheel supporting bearing seat left end cover 44 and No. 1 simulated wheel supporting bearing seat right end cover 45 with the same structure, and the right end of No. 1 simulated wheel supporting bearing seat left end cover 44 The surface is in contact with the left end face of the outer bearing ring of No. 1 supporting seat bearing 48, and the left end face of the right end cover 45 of the No. 1 simulated wheel supporting bearing seat is in contact with the right end face of the outer bearing ring of No. 1 supporting seat bearing 48. The left end cover 44 of the simulated wheel support bearing seat and the right end cover 45 of the No. 1 simulated wheel support bearing seat are connected by bolts to the left and right ends of the support cylinder at the upper end of the simulated wheel support bearing seat shell 43, and the left and right end faces of the support cylinder of the No. 1 simulated wheel support bearing seat The labyrinth oil seal 46 is installed in the center hole of the left end cover 44 of the No. 1 simulated wheel support bearing seat, and the right end surface of the left labyrinth oil seal 46 of the No. 1 simulated wheel support bearing seat is in contact with the left end surface of the inner bearing ring of the No. 1 support seat bearing 48 , the right labyrinth oil seal 47 of the No. 1 simulated wheel support bearing seat is installed in the center hole of the right end cover 45 of the No. 1 simulated wheel support bearing seat, and the left end face of the right labyrinth oil seal 47 of the No. 1 simulated wheel support bearing seat is connected with the inner surface of the No. 1 support seat bearing 48 The right end face of the bearing ring contacts the connection.

10 to 12, the traction motor and gearbox assembly fixing device 19 includes a cast iron platform 5, a traction motor fixing fixture assembly 49 and a high-speed EMU gearbox fixing bracket assembly 51. The traction motor fixed hanger 52 in the traction motor fixing jig assembly 49 is fixedly connected to the T-shaped groove on the upper surface of the cast iron platform 5 by T-shaped bolts and the position can be adjusted according to the test needs. The traction motor fixed hanger 52 is a rectangular bottom plate. The long side is parallel to the T-shaped groove on the upper surface of the cast iron platform 5, and the traction motor 50 of the high-speed EMU is fixedly connected to the traction motor connecting lug plate 53 in the traction motor fixing jig assembly 49 by screws, and the traction motor 50 of the high-speed EMU is The axis of rotation of the output shaft is parallel to the T-shaped groove on the upper surface of the cast iron platform 5, and the fixed support base 64 of the gearbox in the fixed bracket assembly 51 of the high-speed EMU gearbox is fixedly connected to the T-shaped groove on the upper surface of the cast iron platform 5 through T-shaped bolts. In the groove, the position can be adjusted according to the needs of the test, and the long side of the bottom plate of the fixed support base 64 of the gearbox is perpendicular to the T-shaped groove on the upper surface of the cast iron platform 5 .

The traction motor fixing jig assembly 49 includes a traction motor fixing hanger 52 and a traction motor connecting lug plate 53 . The traction motor fixing jig assembly 49 can completely fix the traction motor 50 of the high-speed EMU and bear the forces in all directions suffered by the traction motor 50 of the high-speed EMU. The traction motor fixed hanger 52 is a left-right symmetrical structure that plays a supporting role, and is composed of a rectangular base plate, a support plate and a plurality of rib plates. The support plate is welded and fixed on the rectangular base plate vertically, behind the support plate A plurality of reinforcing rib plates are welded and fixed between the upper side of the rectangular bottom plate. The three sides of the rectangular bottom plate are evenly arranged with oblong through holes for bolts to be inserted, so that the traction motor fixing jig assembly 49 and the cast iron platform 5 are fixedly connected by bolts. The front side of the support plate is provided with multiple vertical T-shaped slots for installing the traction motor connecting lug plate 53 . The traction motor connection lug plate 53 is a structural member welded by the traction motor connection lug plate vertical support plate 54 and a plurality of special-shaped support seats. The traction motor connection lug plate vertical support plate 54 is evenly distributed along the four sides. A plurality of circular through holes are fixedly connected to the vertical T-shaped groove on the front side of the fixed hanging seat 52 of the traction motor through T-shaped bolts. The vertical surface of the traction motor connecting lug plate vertical support plate 54 is welded with two rows of vertically arranged vertical plates that are perpendicular to the vertical surface. Plates, from left to right are No. 1 traction motor connecting lug riser 55, No. 2 traction motor connecting lug riser 56, No. 3 traction motor connecting lug riser 57 and No. 4 traction motor connecting hanger Ear plate vertical plate 58. The upper surface of the No. 1 traction motor connection lug plate vertical plate 55 is welded with the No. 1 traction motor connection support seat 59, and the upper surface of the No. 1 traction motor connection support seat 59 has a horizontally arranged penetrating upper surface groove, with a threaded hole in the groove. No. 2 traction motor connecting lug plate vertical plate 56 and No. 3 traction motor connecting lug plate vertical plate 57 are welded with No. 2 traction motor connecting support seat 60, and No. 2 traction motor connecting support seat 60 spans No. 2 traction motor The motor is connected to the upper surface of the lug plate vertical plate 56 and No. 3 traction motor is connected to the upper surface of the lug plate vertical plate 57, and the upper surface of the No. 2 traction motor connection support seat 60 has a horizontally arranged groove that runs through the upper surface. There are two threaded holes, respectively corresponding to No. 2 traction motor connecting lug riser 56 and No. 3 traction motor connecting lug riser 57. The upper surface of No. 4 traction motor connecting lug riser 58 is welded with No. 3 Traction motor connection support base 61, the upper surface of No. 3 traction motor connection support base 61 has a transversely arranged groove running through the upper surface, and a threaded hole is arranged in the groove. The second row of vertical plates welded to the vertical surface of the vertical support plate 54 of the traction motor connecting lug plate is respectively No. 4 traction motor connection support base 62 and No. 5 traction motor connection support base 63 from left to right. Connection support seat 62 and No. 5 traction motor connection support seat 63 are identical in structure, and its front vertical surface has the groove that runs through the front vertical surface of a horizontal arrangement, and a threaded hole is arranged in the groove. The No. 4 traction motor connection support seat 62 is located between the No. 1 traction motor connection lug plate vertical plate 55 and the No. 2 traction motor connection lug plate vertical plate 56, and the No. Between the lug plate vertical plate 57 and No. 4 traction motor connecting lug plate vertical plate 58, the high-speed EMU traction motor 50 is threadedly connected with the traction motor connection support seat.

Referring to FIG. 13 , the high-speed EMU gear box fixed bracket assembly 51 includes a gear box fixed support base 64 , a gear box C-shaped fixture support shaft assembly 65 and a gear box C-shaped hanger assembly 66 . The No. 1 gearbox C-type fixture support shaft splint 68 and the No. 2 gearbox C-type fixture support shaft splint 69 in the gearbox C-type fixture support shaft assembly 65 are respectively located on both sides of the gearbox fixed support base 64 and T-shaped bolts are fixedly connected in the T-shaped through grooves on both sides of the fixed support base 64 of the gearbox, and the rotation axis of the gearbox C-shaped fixture support shaft 67 in the gearbox C-shaped fixture support shaft assembly 65 is arranged horizontally. And perpendicular to the long side of the support base bottom plate of the gear box fixed support base 64, the gear box C-type hanger assembly 66 is assembled with the gear box C-type fixture support shaft hinge pin 77 through the gear box C-type fixture support shaft 65 is rotationally connected, and its axis of rotation is perpendicular to the long side of the support base bottom plate of the fixed support base 64 of the gear box.

Referring to Fig. 14, the fixed support base 64 of the gearbox is an L-shaped box-type structural member welded by a plurality of iron plates. The vertical side of the vertical column of the support base, four oblong through holes distributed on the same straight line are respectively arranged on the two sides of the base plate of the support base, and the long sides of the four oblong through holes are on the same straight line and connected with the base plate of the support base. The long sides of the vertical columns of the support base are welded to the upper surface of the bottom plate of the support base and are perpendicular to the upper surface of the bottom plate of the support base. The vertical sides of the vertical columns of the support base are respectively processed with a plurality of vertical lines from top to bottom. The T-shaped through slots are parallel to each other, and the T-shaped through slots are perpendicular to the bottom plate of the supporting base.

Referring to Fig. 15 to Fig. 16, the C-type fixture support shaft assembly 65 of the gearbox includes the C-type fixture support shaft 67 of the gearbox, the C-type fixture support shaft splint 68 of the No. 1 gearbox, and the No. 2 gearbox C-type fixture support shaft splint 69, No. 1 gearbox C-type fixture support shaft hinge plate 70, No. 2 gearbox C-type fixture support shaft hinge plate 71, left round nut 72, right round nut 73, 1 Gearbox C-type fixture supporting shaft hinge plate nylon sleeve 74, No. 2 gearbox C-type fixture supporting shaft hinge plate nylon sleeve 75, gearbox C-type fixture supporting shaft hinge plate spacer 76 and gearbox C-type clamp Tool supporting shaft hinge pin 77.

Referring to Fig. 17, the supporting shaft 67 of the C-type fixture of the gearbox is a supporting shaft No. 1 shoulder 78, No. 2 supporting shaft shoulder 79, No. 3 supporting shaft shoulder 80 and supporting The No. 4 shaft shoulder 81 is a stepped shaft with four shoulders in total. There is a thread between the left end surface of the support shaft and the No. 1 shaft shoulder 78 of the support shaft, and the No. 1 shaft shoulder 78 of the support shaft and the No. It is the splint support shaft 82, the splint support shaft 82 is the optical axis, an annular protrusion is formed between the No. 2 shaft shoulder 79 of the support shaft and the No. 3 shaft shoulder 80 of the support shaft, and the No. Between the number shaft shoulders 81 is the hinge plate support shaft 83, the hinge plate support shaft 83 is the optical axis, and the shaft diameter of the splint support shaft 82 is equal to the hinge plate support shaft 83 shaft diameter, the No. 2 shaft shoulder 79 of the support shaft is the same as the support shaft 3 The outer diameter of annular projection between No. shaft shoulder 80 is larger than the shaft diameter of splint support shaft 82, and thread is provided between No. 4 shaft shoulder 81 of support shaft and the right end surface of support shaft.

Referring to Fig. 18, the C-type jig support shaft splint 68 of No. 1 gearbox is the same structure as the C-type jig support shaft splint 69 of No. 2 gearbox, and the C-type jig support shaft splint 68 of No. 1 gearbox is a left-right symmetrical rectangle The upper left and upper right of the plate are each provided with a larger chamfer, and a circular through hole is provided in the middle position of the support shaft splint 68 of the No. 1 gear box C-type fixture near the upper part. Four rows and two columns of eight oblong through holes are provided below, and the long sides of the eight oblong through holes are parallel to each other and parallel to the bottom edge of the No. 1 gear box C-type fixture supporting shaft splint 68.

Refer to Fig. 19, No. 1 gear box C-type fixture support shaft hinge plate 70, No. 2 gear box C-type fixture support shaft hinge plate 71 are identical plates, No. 1 gear box C-type fixture support shaft hinge plate 70 is a left-right symmetrical oblong plate whose top surface and bottom surface are semicircular arc surfaces with the same radius. The upper end of the C-type clamp support shaft hinge plate 70 of the No. 1 gearbox is provided with a circular through hole. The axis of rotation of this circular through hole is collinear with the axis of rotation of the semicircular arc surface at the top. A circular through hole is provided at the lower end of the C-type fixture support shaft hinge plate 70 of the No. 1 gear box. The rotation axis of the bottom end surface is collinear with the rotation axis of the semicircular arc surface, and the radius of the circular through hole at the lower end is smaller than the radius of the circular through hole at the upper end.

Referring to Figure 20, the nylon sleeve 74 of the support shaft hinge plate of the C-type fixture of the No. 1 gearbox is exactly the same as the nylon sleeve 75 of the C-type fixture support shaft hinge plate of the No. 2 gearbox. The C-type fixture of the No. 1 gearbox The support shaft hinge plate nylon sleeve 74 is made of nylon material, and a shaft shoulder is arranged between its left end face and the right end face, and this shaft shoulder and the right end face form a ring-shaped protrusion. In the middle of the nylon sleeve 74 of the hinged plate with supporting shaft is a circular through hole that is constant in the axial direction and is distributed concentrically with the outer circumference.

Gear box C-type clamp supporting shaft hinge plate spacer 76 is a tubular structural member with constant pipe diameter along the axial direction.

Referring to Figure 21, the gear box C-type fixture support shaft hinge pin 77 is a cylindrical structural member, an annular ring groove is arranged on the outer peripheral surface of one end, and a hexagonal pin head is provided at the other end. .

Referring to Fig. 15 and Fig. 16, the circular through hole of the C-type fixture support shaft splint 69 of the No. 2 gearbox is set on the No. 1 support shaft shoulder 78 and the No. 2 support shaft shoulder of the C-type fixture support shaft 67 of the gearbox. On the splint support shaft 82 between 79, the right end surface of the support shaft splint 69 of the No. 2 gear box C-type fixture is in contact with the ring surface on the left side of the support shaft No. 2 shoulder 79, and the No. 2 gear box C-type fixture The right end surface of the supporting shaft splint 69 is welded as a whole with the outer circumferential surface of the annular protrusion formed between the No. 2 supporting shaft shoulder 79 and the No. 3 supporting shaft shoulder 80 . The left side round nut 72 is installed between the left end face of the C-type fixture support shaft 67 of the gearbox and the No. 1 shoulder 78 of the support shaft to be threadedly connected, and the circular through hole of the C-type fixture support shaft splint 68 of the No. 1 gearbox Set on the splint support shaft 82 between the support shaft No. 1 shaft shoulder 78 of the gear box C-type fixture support shaft 67 and the support shaft No. 2 shaft shoulder 79, the left end of the No. 1 gearbox C-type fixture support shaft splint 68 The surface is connected with the right end surface of the left round nut 72 in contact. On the hinge plate support shaft 83 between the supporting shaft No. 3 shoulder 80 of the supporting shaft C-type fixture supporting shaft 67 of the gearbox and the No. 4 supporting shaft shoulder 81, the No. 1 gear box C-type fixture support is sequentially set on the supporting shaft 83 from left to right Shaft hinge plate nylon sleeve 74, gearbox C-type fixture support shaft hinge plate spacer 76 and No. 2 gearbox C-type fixture support shaft hinge plate nylon sleeve 75, No. 1 gearbox C-type fixture support shaft hinge plate nylon The sleeve 74 and the C-type fixture supporting shaft hinge plate spacer 76 of the gearbox are face-to-face installations, and the end face (left end face) on the nylon sleeve 74 with a larger radius on the C-type fixture supporting shaft hinge plate of the No. The ring surface on the right side of the support shaft No. 3 shaft shoulder 80 on the support shaft 67 of the type fixture is contacted and connected, and the end face (right end face) on the hinge plate nylon sleeve 74 of the support shaft of the No. 1 gearbox with a smaller radius is connected with the gear The left end face of the box C-type fixture support shaft hinge plate spacer 76 is in contact with the right end face of the gear box C-type fixture support shaft hinge plate spacer 76 and the No. 2 gear box C-type fixture support shaft hinge plate nylon sleeve 75 The end face (left end face) with a small upper radius is connected in contact, and the right round nut 73 is installed on the support shaft No. 4 shoulder 81 of the supporting shaft 67 of the C-type fixture of the gearbox and connected with the right end face by threads. The No. 2 gearbox The end face (right end face) with a larger radius on the support shaft hinge plate nylon sleeve 75 of the C-type clamp is in contact with the left end face of the right round nut 73. No. 1 gearbox C-type fixture support shaft hinge plate nylon sleeve 74 on hinge plate support shaft 83, gearbox C-type fixture support shaft hinge plate spacer 76 and No. 2 gearbox C-type fixture support shaft hinge plate nylon The position of the sleeve 75 in the axial direction of the hinge plate support shaft 83, the No. 1 gearbox C-type fixture support shaft hinge plate 70 is set on the outer circumferential surface of the No. 1 gearbox C-type fixture support shaft hinge plate nylon sleeve 74, The left end face of the supporting shaft hinge plate 70 of the C-type fixture of the No. 1 gearbox is in contact with the annular surface at the upper shaft shoulder of the nylon sleeve 74 of the C-type fixture supporting shaft hinge plate of the No. 1 gearbox. The right end face of the tool support shaft hinge plate 70 is in contact with the left end face of the gear box C-type fixture support shaft hinge plate spacer 76, and the circle at the shaft shoulder on the C-type fixture support shaft hinge plate nylon sleeve 74 of the No. 1 gear box is The annulus and the left end surface of the hinge plate spacer 76 of the C-type fixture support shaft of the gearbox limit the position of the hinge plate 70 of the C-type fixture support shaft of the No. 1 gearbox on the axial direction of the hinge plate support shaft 83. Type clamp support shaft hinge plate 71 is set on the outer circumferential surface of the nylon sleeve 75 of the C-type clamp support shaft hinge plate of the No. 2 gear box, and the right end surface of the C-type clamp support shaft hinge plate 71 of the No. Gearbox C-type fixture supporting shaft hinge plate nylon sleeve 75 is connected to the ring surface at the shaft shoulder, and the left end face of gear box C-type fixture supporting shaft hinge plate 71 is hinged with the gear box C-type fixture supporting shaft hinge The right end face of the plate spacer 76 is in contact with the ring surface at the upper shaft shoulder of the nylon sleeve 75 of the C-type fixture supporting shaft hinge plate of the No. 2 gearbox, and the right end face of the C-type fixture supporting shaft hinge plate spacer 76 of the gearbox Restricted No. 2 gearbox C-type fixture support shaft hinge plate 71 is at the axial position of the hinge plate support shaft 83, the hinge plate 70 of the C-type clamp support shaft of the No. 1 gearbox and the circular through hole at the lower end of the C-type fixture support shaft hinge plate 71 of the No. On the outer circumferential surface of the C-type fixture support shaft hinge pin 77, a circular circlip is installed in the ring-shaped circlip groove at one end of the C-type fixture support shaft hinge pin 77 of the gearbox, and the right end surface of the circular circlip It is in contact with the left end surface of the C-type fixture support shaft hinge plate 70 of No. 1 gear box, and the right end surface of the C-type fixture support shaft hinge plate 71 of the No. 2 gear box is connected with the C-type fixture support shaft hinge pin 77 of the gearbox. The inner surface of the hexagonal pin head at one end contacts the connection.

Referring to Fig. 22 to Fig. 25, the gear box C-type hanger assembly 66 includes a gear box C-shaped swing pipe welded clamp 84, No. 1 gear box rubber pad 85, No. 2 gear box rubber pad 86 , No. 1 gear box C-type clamp pin nylon sleeve 87 and No. 2 gear box C-type clamp pin nylon sleeve 88. Gear box C-type swing pipe welded fixture 84 includes vertical support pipe 89, upper transverse support pipe 90, lower transverse support pipe 91, upper transverse connecting plate 92, lower transverse connecting plate 93, vertical supporting pipe 89, upper transverse The support pipe 90 and the lower transverse support pipe 91 are all structural parts made of tubular materials with rounded corners and the same size in cross-section. Rigidity, the upper transverse support tube 90 and the lower transverse support tube 91 are not sealed, the upper and lower horizontal tube walls of the upper transverse support tube 90 are respectively provided with four circular through holes in two rows and two columns, and the upper transverse support tube 90 The four circular through-holes on the upper tube wall and the four circular through-holes on the lower tube wall are one-to-one corresponding and coaxially distributed, and the vertical tube walls on both sides of the upper transverse support tube 90 are respectively provided with There is a circular through hole, and these two circular through holes are distributed concentrically. The upper and lower horizontal tube walls of the lower transverse support tube 91 are respectively provided with four circular through holes in two rows and two columns. The four circular through holes on the upper horizontal pipe wall of the pipe 91 correspond to the four circular through holes on the lower horizontal pipe wall and are distributed concentrically. The upper transverse connecting plate 92 and the lower transverse connecting plate 93 There is a strip-shaped protrusion at each end, which constitutes a U-shaped plate with the same structure. The upper transverse connecting plate 92 and the lower transverse connecting plate 93 are provided with four vertical circular passages in two rows and two columns. Holes, the upper transverse connecting plate 92 is welded to the lower horizontal pipe wall of the upper transverse support pipe 90, the four circular through holes on the upper transverse connecting plate 92 and the four circular through holes on the upper and lower two horizontal pipe walls of the upper transverse supporting pipe 90 Circular through holes one-to-one correspond to the distribution of coaxial centers, and the lower transverse connecting plate 93 is welded to the upper horizontal pipe wall of the lower transverse support tube 91, and the four circular through holes on the lower transverse connecting plate 93 are connected with the lower transverse support tube 91. The four circular through holes on the upper and lower two horizontal tube walls of the upper and lower corresponding to the coaxial center distribution, one end of the nozzle end face of the upper transverse support tube 90 is welded to the side surface of the vertical support tube 89 upper end, and the upper transverse support tube 90 It is vertically distributed with the vertical support pipe 89, and the nozzle end surface of one end of the lower transverse support pipe 91 is welded to the side surface of the lower end of the vertical support pipe 89. The lower transverse support pipe 91 is vertically distributed with the vertical support pipe 89, and the lower horizontal The support pipe 91 and the upper transverse support pipe 90 are located on the same side of the vertical support pipe 89 and are parallel to each other. Two pieces of vertical reinforcement in the shape of an isosceles right triangle are welded between the upper transverse connecting plate 92 and the side of the vertical support pipe 89. Ribs, two vertical ribs in the shape of an isosceles right triangle are welded between the lower transverse connecting plate 93 and the side of the vertical support pipe 89 to enhance the strength of the structure; the rubber pad 85 of the No. 1 gearbox and the No. The rubber pad 86 has the same structure and is actually used in high-speed EMUs. It is used to connect the pinion part of the gearbox and the bogie frame on the high-speed EMUs to support the gearbox. The EMU gear box 27 and gear box C-shaped swing pipe welded fixture 84, the upper and lower surfaces of the No. 1 gear box rubber pad 85 and the No. 2 gear box rubber pad 86 are distributed in two rows and two columns, a total of four Circular through-holes, the circular through-holes on the upper surface and the circular through-holes on the lower surface are one-to-one corresponding to the coaxial distribution; No. 1 gearbox type C fixture pin nylon sleeve 87 and No. 2 gearbox type C Fixture pin shaft nylon sleeve 88 has the same structure, and its structure is the same as that of No. 1 gearbox C-type clamp support shaft hinge plate nylon sleeve 74, and No. 2 gearbox C-type clamp support shaft hinge plate nylon sleeve 75. But the size Different, there is a shoulder between the left end face and the right end face, this shoulder and the right end face form a torus-shaped protrusion, and in the middle is a hole with a constant diameter along the axis and concentric with the outer circumference. Distributed circular through-holes, No. 1 gear box C-type fixture pin nylon sleeve 87 is installed in the circular through-hole on the side pipe wall of the upper transverse support tube 90, No. 1 gear box C-type fixture pin nylon sleeve 87 The annular surface at the shaft shoulder of the upper horizontal support pipe 90 is in contact with the left side of the vertical pipe wall on one side, and the pin shaft nylon sleeve 88 of the C-type fixture of the No. 2 gearbox is connected with the C-type fixture of the No. 1 gearbox. Pin shaft nylon sleeves 87 are arranged face to face and coaxial, and are installed in the circular through hole of the vertical tube wall on the other side of the upper transverse support pipe 90. The annular surface at the shoulder is in contact with the right side of the vertical tube wall on the other side of the upper transverse support tube 90 .

Referring to Figure 13, the gear box C-type fixture pin nylon sleeve 87 of the No. 1 gearbox and the No. 2 gearbox C-type fixture pin nylon sleeve 88 in the gearbox C-type hanger assembly 66 are set on the gear box C-type fixture On the gear box C-type clamp support shaft hinge pin shaft 77 in the support shaft assembly 65, the position of the gear box C-type hanger assembly 66 on the gear box C-type clamp support shaft hinge pin shaft 77 axial position is controlled by the gear The C-type fixture support shaft hinge plate 70 of the No. 1 gearbox and the C-type fixture support shaft hinge plate 71 of the No. 2 gearbox in the box C-type fixture support shaft assembly 65 are limited. At the same time, the C-type hanger of the gearbox The assembly body 66 can rotate around the hinge pin shaft 77 of the C-type fixture supporting shaft of the gearbox. The No. 1 gearbox C-type fixture support shaft splint 68 in the gearbox C-type fixture support shaft assembly 65 and the No. 2 gearbox C-type fixture support shaft splint 69 straddle the gearbox fixed support base 64 with vertical The two sides of the vertical column facing the support base of the T-shaped slot are fixed in the T-shaped slot of the fixed support base 64 of the gearbox through T-shaped bolts. The vertical position on the fixed support base 64 of the box, the C-type fixture support shaft hinge plate 70 of the No. 1 gearbox and the C-type fixture support shaft hinge plate of the No. 2 gearbox in the C-type fixture support shaft assembly 65 of the gearbox 71 can rotate around gear box C-type clamp supporting shaft 67.

The traction motor fixing jig assembly 49 and the high-speed EMU gearbox fixing bracket assembly 51 are fixedly connected to the T-shaped groove on the upper surface of the cast iron platform 5 through T-shaped bolts, and can be adjusted according to the test requirements. Position, the bottom plate long side of the traction motor fixed hanger 52 in the traction motor fixed fixture assembly 49 is parallel to the long side of the upper surface of the cast iron platform 5, and the gearbox fixed support base in the high-speed EMU gearbox fixed bracket assembly 51 The long side of the base plate of 64 is perpendicular to the long side of the cast iron platform 5 upper surface.

Referring to Fig. 26, the hydraulic control system of the high-speed EMU oscillating power train assembly reliability test bench includes a host computer 94, an emergency stop switch 95, a hydraulic system controller 96, a lateral actuator solenoid valve 97, and a No. 1 Vertical actuator solenoid valve 98, No. 2 vertical actuator solenoid valve 99 and hydraulic pump station 100.

The upper computer 94 is connected to the hydraulic system controller 96 with signal lines, and the hydraulic system controller 96 is respectively connected to the lateral actuator solenoid valve 97, the No. 1 vertical actuator solenoid valve 98 and the No. 2 vertical actuator solenoid valve through three signal lines. Actuator solenoid valve 99, the oil outlet pipe of hydraulic pump station 100 are respectively connected to the oil inlets of lateral actuator 12, No. 1 vertical actuator 13 and No. 2 vertical actuator 14, and the hydraulic pump station 100 The oil return pipes are respectively connected to the oil outlets of the transverse actuator 12, the No. 1 vertical actuator 13 and the No. 2 vertical actuator 14, and the hydraulic oil enters the hydraulic pressure of each actuator through the oil outlet pipe of the hydraulic pump station 100. The cylinder returns to the hydraulic pump station 100 through the oil return pipes of each actuator. The hydraulic system controller 96 is an automatic control unit realized by single-chip microcomputer technology. ), the hydraulic system controller 96 receives instructions from the host computer 94, and respectively controls the solenoid valve 97 of the lateral actuator, the solenoid valve 98 of the 1st vertical actuator and the solenoid valve 99 of the 2nd vertical actuator On-off, lateral actuator 12, No. 1 vertical actuator 13 and No. 2 vertical actuator 14 can adopt hydraulic, pneumatic or electric control methods, which can be flexibly selected according to actual test requirements and site conditions. The hydraulic control system is adopted. The transverse actuator 12, the No. 1 vertical actuator 13 and the No. 2 vertical actuator 14 complete the vibration of the T-shaped beam under the action of the constant pressure hydraulic oil provided by the hydraulic pump station 100. 6 Simulate the three-degree-of-freedom vibration condition, and the hydraulic system controller 96 is provided with an emergency stop switch 95, which is used to stop the vibration of the T-beam 6 in an emergency in case of danger, so as to protect the test equipment itself and the tested object.

The working principle of the high-speed EMU oscillating drive train assembly reliability test bench:

The vibrating T-beam 6 in the reliability test bench of the oscillating power train assembly of the high-speed EMU is connected with a transverse actuator 12, a No. 1 vertical actuator 13 and a No. 2 vertical actuator 14, and the transverse actuator 12 provides lateral excitation force for vibrating T-shaped beam 6, No. 1 vertical actuator 13 and No. 2 vertical actuator 14 provide vertical excitation force for vibrating T-shaped beam 6, and lateral actuators 12, 1 No. 1 vertical actuator 13 and No. 2 vertical actuator 14 drive the vibrating T-shaped beam 6 to simulate a three-degree-of-freedom vibration condition.

The swingable high-speed EMU gear box fixed bracket assembly unique to the reliability test bench of the high-speed EMU oscillating drive train assembly enables the gear box to support the shaft around the C-shaped fixture of the gear box within a certain range during the test process. 67 rotation, avoiding the internal force of the tested part caused by the rigid fixation of the pinion end of the gearbox, and protecting the tested part.

The torque detection test device 1 in the reliability test bench of the oscillating power train assembly of the high-speed EMU drives the axle box bearing test shaft 11 through the cross-shaft universal coupling 3 to simulate different vehicle speed conditions.

The details of the standard parts and components adopted and available in the embodiment:

The horizontal actuator 12, the No. 1 vertical actuator 13 and the No. 2 vertical actuator 14 adopt a series of double-piston rod constant-velocity and equal-stroke hydraulic cylinders. Hydraulic cylinders of different tonnages are selected according to the actual situation of the test. In this example The tonnage of the hydraulic cylinder used is 30 tons, and the piston stroke is ±300mm.

The cross-shaft universal joint 3 in this example adopts the cross-shaft universal joint SWCBH model.

Claims (9)

1. an EMU swing type power train assembly reliability test bench, comprise torque detection testing device (1), power train assembly test unit (2) and hydraulic control system, torque detection testing device (1) is connected by universal coupling with spider (3) with power train assembly test unit (2), power train assembly test unit (2) comprises traction electric machine and gearbox assembly stationary installation (19), traction electric machine and gearbox assembly stationary installation (19) comprise EMU gear case fixed support assembly (51), EMU gear case fixed support assembly (51) comprises gear case fixed support base (64), it is characterized in that, described EMU gear case fixed support assembly (51) also comprises gear case C type jig bolster assembly (65) and gear case C type suspension bracket assembly (66), the left-half of described gear case C type jig bolster assembly (65) be cross-placed on described gear case fixed support base (64) both sides and by the T-shaped T-slot being bolted to gear case fixed support base (64), the right half part of described gear case C type jig bolster assembly (65) is provided with gear case C type jig bolster hinge pin (77), described gear case C type suspension bracket assembly (66) is lifted in gear case C type jig bolster hinge pin (77), realize being rotationally connected with gear case C type jig bolster assembly (65), its pivot center is vertical with the long limit of the base for supporting base plate of gear case fixed support base (64).

2. according to a kind of EMU swing type power train assembly reliability test bench according to claim 1, it is characterized in that, described gear case C type jig bolster assembly (65) also comprises gear case C type jig bolster (67), No. 1 gear case C type jig bolster clamping plate (68), No. 2 gear case C types jig bolster clamping plate (69), No. 1 gear case C type jig bolster flap (70), No. 2 gear case C types jig bolster flap (71), left circles nut (72), right circles nut (73), No. 1 gear case C type jig bolster flap nylon jacket (74), No. 2 gear case C types jig bolster flap nylon jacket (75) and gear case C type jig bolster flap spacer (76), gear case C type jig bolster (67) comprises clamping plate bolster (82) and flap bolster (83), left circles nut (72) is threaded with gear case C type jig bolster (67) left end, No. 1 gear case C type jig bolster clamping plate (68) is sleeved on the clamping plate bolster (82) of gear case C type jig bolster (67), the left side of No. 1 gear case C type jig bolster clamping plate (68) contacts with the right side of left circles nut (72), it is upper and be fixedly connected with clamping plate bolster (82) that No. 2 gear case C types jig bolster clamping plate (69) are sleeved on the clamping plate bolster (82) of gear case C type jig bolster (67), the flap bolster (83) of gear case C type jig bolster (67) is set with No. 1 gear case C type jig bolster flap nylon jacket (74) successively by left-to-right, gear case C type jig bolster flap spacer (76) and No. 2 gear case C types jig bolster flap nylon jacket (75), right circles nut (73) is threaded with gear case C type jig bolster (67) right-hand member, No. 2 gear case C type jig bolster flap nylon jacket (75) right sides contact with the left side of right circles nut (73), No. 1 gear case C type jig bolster flap (70) is sleeved on the outer circumference surface of No. 1 gear case C type jig bolster flap nylon jacket (74), No. 2 gear case C types jig bolster flap (71) are sleeved on the outer circumference surface of No. 2 gear case C types jig bolster flap nylon jacket (75), No. 1 gear case C type jig bolster flap (70) is all sleeved on the outer circumference surface of gear case C type jig bolster hinge pin (77) by the manhole near lower surface with No. 2 gear case C types jig bolster flap (71), No. 1 gear case C type jig bolster clamping plate (68), No. 2 gear case C types jig bolster clamping plate (69) lay respectively at the both sides of gear case fixed support base (64) and by the T-shaped T-shaped groove being bolted to gear case fixed support base (64) both sides, the axis of rotation of gear case C type jig bolster (67) is horizontally disposed and vertical with the long limit of the base for supporting base plate of gear case fixed support base (64).

3. according to a kind of EMU swing type power train assembly reliability test bench according to claim 2, it is characterized in that, described gear case C type jig bolster (67) is multidiameter, gear case C type jig bolster (67) is distributed with from left side to right side bolster No. 1 shaft shoulder (78) successively, bolster No. 2 shaft shoulders (79), bolster No. 3 shaft shoulders (80) and bolster No. 4 shaft shoulders (81), screw thread is distributed with between bolster left side and bolster No. 1 shaft shoulder (78), be clamping plate bolster (82) between bolster No. 1 shaft shoulder (78) and bolster No. 2 shaft shoulders (79), clamping plate bolster (82) is optical axis, a circular projection is formed between bolster No. 2 shaft shoulders (79) and bolster No. 3 shaft shoulders (80), be flap bolster (83) between bolster No. 3 shaft shoulders (80) and bolster No. 4 shaft shoulders (81), flap bolster (83) is optical axis, screw thread is distributed with between bolster No. 4 shaft shoulders (81) and bolster right side, left circles nut (72) is threaded between the left side of gear case C type jig bolster (67) and bolster No. 1 shaft shoulder (78), flap bolster (83) between bolster No. 3 shaft shoulders (80) of gear case C type jig bolster (67) and bolster No. 4 shaft shoulders (81) is set with No. 1 gear case C type jig bolster flap nylon jacket (74) successively by left-to-right, gear case C type jig bolster flap spacer (76) and No. 2 gear case C types jig bolster flap nylon jacket (75), the anchor ring on No. 3 shaft shoulder (80) right sides in left side and the upper bolster of gear case C type jig bolster (67) of No. 1 gear case C type jig bolster flap nylon jacket (74) contacts, the right side of No. 1 gear case C type jig bolster flap nylon jacket (74) contacts with the left side of gear case C type jig bolster flap spacer (76), the right side of gear case C type jig bolster flap spacer (76) contacts with the left side of No. 2 gear case C types jig bolster flap nylon jacket (75), right circles nut (73) is threaded between bolster No. 4 shaft shoulders (81) of gear case C type jig bolster (67) and right side, the right side of No. 2 gear case C types jig bolster flap nylon jacket (75) contacts with the left side of right circles nut (73), the left side of No. 1 gear case C type jig bolster flap (70) contacts with the anchor ring at the upper shaft shoulder place of No. 1 gear case C type jig bolster flap nylon jacket (74), the right side of No. 1 gear case C type jig bolster flap (70) contacts with the left side of gear case C type jig bolster flap spacer (76), the right side of No. 2 gear case C types jig bolster flap (71) contacts with the anchor ring at the upper shaft shoulder place of No. 2 gear case C types jig bolster flap nylon jacket (75), the left side of No. 2 gear case C types jig bolster flap (71) contacts with the right side of gear case C type jig bolster flap spacer (76).

4. according to a kind of EMU swing type power train assembly reliability test bench according to claim 2, it is characterized in that, described No. 1 gear case C type jig bolster clamping plate (68) is identical with No. 2 gear case C type jig bolster clamping plate (69) structures, No. 1 gear case C type jig bolster clamping plate (68) is rectangle plate, No. 1 gear case C type jig bolster clamping plate (68) top is provided with a manhole, eight Long Circle through holes are provided with in the below of manhole, the manhole of No. 1 gear case C type jig bolster clamping plate (68) and No. 2 gear case C type jig bolster clamping plate (69) top settings is all sleeved on the clamping plate bolster (82) of gear case C type jig bolster (67), described No. 1 gear case C type jig bolster flap (70) is identical with No. 2 gear case C type jig bolster flap (71) structures, No. 1 gear case C type jig bolster flap (70) is Long Circle plate, is respectively provided with a manhole above and below No. 1 gear case C type jig bolster flap (70), described No. 1 gear case C type jig bolster flap nylon jacket (74) is identical with No. 2 gear case C type jig bolster flap nylon jacket (75) structures, No. 1 gear case C type jig bolster flap nylon jacket (74) is provided with a shaft shoulder between left side and right side, and the shaft shoulder and right side form a circular projection, be manhole axially in the middle of No. 1 gear case C type jig bolster flap nylon jacket (74), gear case C type jig bolster flap spacer (76) is tubular structural member axially, gear case C type jig bolster hinge pin (77) is columniform structural member, the outer circumference surface of its one end is provided with the jump-ring slot of ring-type, the other end is hexagonal bearing pin head, circular jump ring is installed in jump-ring slot, the right side of circular jump ring contacts with the left side of No. 1 gear case C type jig bolster flap (70) and connects, and the right side of No. 2 gear case C types jig bolster flap (71) contacts with the inside surface of bearing pin head.

5. according to a kind of EMU swing type power train assembly reliability test bench according to claim 1, it is characterized in that, described gear case C type suspension bracket assembly (66) comprises gear case C type swing pipe welded type jig (84), No. 1 gearbox rubber cushion block (85), No. 2 gearbox rubber cushion blocks (86), No. 1 gear case C type jig bearing pin nylon jacket (87) and No. 2 gear case C types jig bearing pin nylon jacket (88), gear case C type swing pipe welded type jig (84) is tubular structure, they two horizontal tube comprising a vertical pipe fitting and be vertically mounted on vertical pipe fitting two ends respectively, No. 1 gearbox rubber cushion block (85) and No. 2 gearbox rubber cushion blocks (86) are arranged on inside gear case C type swing pipe welded type jig (84) two ends respectively and position is relative, No. 1 gear case C type jig bearing pin nylon jacket (87) is arranged on two sides of the horizontal tube of gear case C type swing pipe welded type jig (84) one end with No. 2 gear case C type jig bearing pin nylon jacket (88) symmetries, No. 1 gear case C type jig bearing pin nylon jacket (87) and No. 2 gear case C types jig bearing pin nylon jacket (88) are sleeved in gear case C type jig bolster hinge pin (77) of described gear case C type jig bolster assembly (65), realize being rotationally connected.

6. according to a kind of EMU swing type power train assembly reliability test bench according to claim 5, it is characterized in that, described gear case C type swing pipe welded type jig (84) specifically comprises vertical support column (89), upper lateral support pipe (90), lower horizontal support column (91), upper cross connecting plate (92) and lower cross connecting plate (93), vertical support column (89), upper lateral support pipe (90) and lower horizontal support column (91) are that xsect is all round rectangle and measure-alike cylinder structure part, the two horizontal tube walls up and down of upper lateral support pipe (90) are respectively provided with four manholes, four manholes on the upper tube wall of upper lateral support pipe (90) and four manhole one_to_one corresponding on lower tube wall, the vertical tube wall in both sides of upper lateral support pipe (90) is respectively provided with a manhole, the two horizontal tube walls up and down of lower horizontal support column (91) are respectively provided with four manholes, four manholes on the upper tube wall of lower horizontal support column (91) and four manhole one_to_one corresponding on lower tube wall, upper cross connecting plate (92) with lower cross connecting plate (93) for the xsect that structure is identical is U-shaped plate, upper cross connecting plate (92) is welded on the lower horizontal tube wall of lateral support pipe (90), upper cross connecting plate (92) be provided with four with four manholes manhole one to one on the two horizontal tube walls up and down of upper lateral support pipe (90), lower cross connecting plate (93) is welded on the upper horizontal tube wall of lower horizontal support column (91), lower cross connecting plate (93) be provided with four with four manholes manhole one to one on the two horizontal tube walls up and down of lower horizontal support column (91), upper lateral support pipe (90) and vertical support column (89) are in vertical distribution, lower horizontal support column (91) and vertical support column (89) are in vertical distribution, the vertical reinforcement of two pieces of isosceles right triangles is welded with between upper cross connecting plate (92) and vertical support column (89) side, the vertical reinforcement of two pieces of isosceles right triangles is welded with between lower cross connecting plate (93) and vertical support column (89) side, No. 1 gearbox rubber cushion block (85) is identical with No. 2 gearbox rubber cushion block (86) structures, and No. 1 gearbox rubber cushion block (85) is distributed with four manholes with the upper and lower surface of No. 2 gearbox rubber cushion blocks (86), No. 1 gear case C type jig bearing pin nylon jacket (87) is identical with No. 2 gear case C type jig bearing pin nylon jacket (88) structures, No. 1 gear case C type jig bearing pin nylon jacket (87) is arranged in the manhole of lateral support pipe (90) side wall, the anchor ring at the shaft shoulder place of No. 1 gear case C type jig bearing pin nylon jacket (87) contacts with the side of upper lateral support pipe (90), No. 2 gear case C types jig bearing pin nylon jacket (88) are arranged in the manhole of lateral support pipe (90) another side tube wall, the anchor ring at the shaft shoulder place of No. 2 gear case C types jig bearing pin nylon jacket (88) contacts with the side of upper lateral support pipe (90).

7. according to a kind of EMU swing type power train assembly reliability test bench according to claim 1, it is characterized in that, described traction electric machine and gearbox assembly stationary installation (19) also comprise traction electric machine holding clamp assembly (49) and cast iron platform (5), traction electric machine holding clamp assembly (49) and described cast iron platform (5) are bolted to connection, and traction electric machine holding clamp assembly (49) comprises traction electric machine and fixes hanging seat (52) and traction electric machine connection shackle plate (53); Traction electric machine is fixed hanging seat (52) and is made up of a rectangular base plate, a back up pad and multiple reinforcement gusset, back up pad is vertically weldingly fixed in rectangular base plate, back up pad below and rectangular base plate be welded and fixed multiple reinforcement gusset above, the front of back up pad is provided with many vertical T-slot for installing traction electric machine connection shackle plate (53); Traction electric machine connects shackle plate (53) and is welded by the traction electric machine connection vertical back up pad of shackle plate (54) and multiple special-shaped support seat, the traction electric machine connection vertical back up pad of shackle plate (54) is evenly equipped with multiple manhole along four limits, is fixedly attached to traction electric machine by T-shaped bolt and fixes in the vertical T-slot in hanging seat (52) front.

8. according to a kind of EMU swing type power train assembly reliability test bench according to claim 7, it is characterized in that, the riser becoming vertical relation with vertical surface that the vertical surface-welding that described traction electric machine connects the vertical back up pad of shackle plate (54) has two rows vertically to arrange, first row has four mechanisms identical, lower surface is the riser on inclined-plane, No. 1 traction electric machine connection shackle plate riser (55) is respectively by left-to-right, No. 2 traction electric machines connect shackle plate riser (56), No. 3 traction electric machines connect shackle plate riser (57) and No. 4 traction electric machines connection shackle plate riser (58), the second row riser that traction electric machine connects the vertical surface-welding of the vertical back up pad of shackle plate (54) is respectively No. 4 traction electric machines connection supporting seat (62) and No. 5 traction electric machines connection supporting seat (63) by left-to-right.

9. according to a kind of EMU swing type power train assembly reliability test bench according to claim 8, it is characterized in that, the upper surface that described No. 1 traction electric machine connects shackle plate riser (55) is welded with No. 1 traction electric machine and connects supporting seat (59), the upper surface of No. 1 traction electric machine connection supporting seat (59) has the groove of the through upper surface of a lateral arrangement, has a threaded hole in groove, described No. 2 traction electric machines connection shackle plate riser (56) connect shackle plate riser (57) upper surface with No. 3 traction electric machines is welded with No. 2 traction electric machines and connects supporting seat (60), No. 2 traction electric machines connection supporting seat (60) connect the upper surface of shackle plate riser (57) with No. 3 traction electric machines across No. 2 traction electric machines connection shackle plate riser (56), the upper surface of No. 2 traction electric machines connection supporting seat (60) has the groove of the through upper surface of a lateral arrangement, two threaded holes are had in groove, corresponding No. 2 traction electric machines connect shackle plate riser (56) and connect shackle plate riser (57) with No. 3 traction electric machines respectively, the upper surface that described No. 4 traction electric machines connect shackle plate riser (58) is welded with No. 3 traction electric machines and connects supporting seat (61), the upper surface of No. 3 traction electric machines connection supporting seat (61) has the groove of the through upper surface of a lateral arrangement, has a threaded hole in groove, it is identical with No. 5 traction electric machines connection supporting seat (63) structures that described No. 4 traction electric machines connect supporting seat (62), and before it, vertically there is the through front vertically surperficial groove of a lateral arrangement on surface, has a threaded hole in groove, described No. 4 traction electric machines connect supporting seat (62) and are positioned between No. 1 traction electric machine connection shackle plate riser (55) and No. 2 traction electric machines connection shackle plate riser (56), described No. 5 traction electric machines connect supporting seat (63) and are positioned between No. 3 traction electric machines connection shackle plate riser (57) and No. 4 traction electric machines connection shackle plate riser (58).