CN107505132B - Bidirectional tiltable double-gear box closed loop torsion loading test bed - Google Patents
Bidirectional tiltable double-gear box closed loop torsion loading test bed Download PDFInfo
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- CN107505132B CN107505132B CN201710869532.2A CN201710869532A CN107505132B CN 107505132 B CN107505132 B CN 107505132B CN 201710869532 A CN201710869532 A CN 201710869532A CN 107505132 B CN107505132 B CN 107505132B
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- 238000012360 testing method Methods 0.000 title claims abstract description 104
- 230000002457 bidirectional effect Effects 0.000 title abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000003137 locomotive effect Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a bidirectional tiltable double-gear box closed loop torsion loading test bed for reliability test of a motor train unit drive line gear box under a dynamic working condition, which comprises a power compensation motor, a test accompanying gear box and a transmission shaft, wherein the power compensation motor is fixedly arranged on a working platform, the test accompanying gear box is in driving connection through a torque meter, a pinion shaft of the test accompanying gear box is connected with an intermediate transmission shaft through a tooth drum type coupling, two gear shafts of the test gear box are respectively connected with the transmission shaft and the intermediate transmission shaft through couplings to form a closed loop loading system, an actuator capable of vertically lifting and pressing the test accompanying gear box and a clamping device for clamping the test gear box are further arranged on the working platform, and the whole closed loop loading system is loaded; simultaneously, the working platform is hinged on the platform supporting seat through hinge shafts at two sides, so that the working platform rotates around the shaft. The test bed can simulate the actual running condition of the motor train unit gearbox in the running process, so that the loading mechanism of the test bed is simplified, the control is convenient, and the cost is reduced.
Description
Technical Field
The invention relates to a test device for closed loop loading of a gear box, in particular to a bidirectional tilting double-gear box closed loop torsion loading test bed.
Background
High-speed railways are system engineering which centralizes a plurality of high-speed and new technologies, and high-speed trains are an important part and directly relate to the life safety and comfort of passengers. And an important component affecting the safety of high speed trains is the bogie of the locomotive. The gearbox is a key part in the bogie and is responsible for transmitting the power of the locomotive to the wheel set, and has direct influence on train driving safety and train dynamics. Generally, gears are required to run safely for more than 120 ten thousand kilometers, and the box is normally operated for more than 20 years.
As train speeds continue to increase, the operating conditions of the gearboxes become increasingly severe. The gear box is extremely easy to break down in the running process under the running condition of high speed and heavy load for a long time. The occurrence of faults seriously affects the normal operation of the motor train unit, increases maintenance and repair costs, and may even endanger the safety of passengers. Therefore, it is important to perform reliability analysis tests on the gearbox. However, the test equipment in the laboratory at present cannot effectively simulate various working conditions encountered in locomotive operation, so that a large error exists between the data obtained by test analysis and the actual effect.
Disclosure of Invention
The invention aims to provide a bidirectional tiltable double-gear box closed loop torsion loading test bed, which is used for simulating the operation condition of a locomotive gear box in the operation of a locomotive and improving the reliability test precision of the gear box.
The invention discloses a bidirectional tiltable double-gear box closed loop torsion loading test bed, which comprises a working platform, a power compensation motor, a test accompanying gear box and a torque meter, wherein the power compensation motor, the test accompanying gear box and the torque meter are fixedly arranged on the working platform;
a transmission shaft is erected through the other two bearing seats fixedly arranged on the working platform, a synchronous pulley fixedly arranged on a large gear shaft of the test gear box and a synchronous pulley fixedly arranged on the transmission shaft are in driving connection through a synchronous belt, and a coupler for connecting the large gear shaft of the test gear box is arranged at one end of the transmission shaft; two bearing seats which are used for being arranged on the test gear box large gear shaft in a penetrating manner are also fixedly arranged on the working platform;
a clamping device for clamping the test gearbox is fixedly arranged on the working platform;
the working platform is hinged on the base plate through hinge shafts and supporting seats at two sides of the working platform, so that the working platform can tilt around the hinge shafts.
The test device is characterized by further comprising a chute plate fixed on two side edges of the working platform and a locking upright post matched with the chute plate and fixed on the base plate, wherein the chute plate is used for locking the working platform after the working platform tilts for a certain angle, so that the change of the tilting angle in the test process is prevented, and the side rolling operation working condition is simulated.
The actuator comprises a cantilever beam bracket, a servo hydraulic cylinder and an earring piston rod, wherein the cantilever beam bracket is fixed on a working platform through bolts, the servo hydraulic cylinder is hinged on the actuator bracket through a pin shaft penetrating through the cantilever beam bracket, and an earring at the lower end of the earring piston rod is hinged on an earring of a test accompanying gear box through another pin shaft.
The clamping device comprises a clamping support, a clamping piston rod, a clamping sleeve and a pressing triangle which are arranged on the working platform through bolts, the pressing triangle is fixedly arranged at the outer end of the clamping support, the length of a shaft of the pressing triangle is telescopic and is used for pressing a shell of the test gearbox, the clamping sleeve is hinged at the inner end of the clamping support, the clamping piston rod is fixed in the clamping sleeve through bolts, the lower end of the clamping piston rod is hinged on an earring of the shell of the test gearbox through a pin shaft, so that the test gearbox swings by a certain angle, and the running condition of the nod is simulated.
The working mechanism of the bidirectional tiltable double-gear box closed loop torsion loading test bed provided by the invention is as follows:
the test bed is used for carrying out reliability tests of the motor train unit drive train gearbox under various working conditions. The test gear box to be tested is arranged on a working platform through a large gear shaft and two corresponding bearing seats in the technical scheme, and the small gear shaft and the large gear shaft of the test gear box are respectively connected with the middle transmission shaft and the transmission shaft through corresponding couplings in a driving way, so that a closed-loop loading system is formed, wherein a power compensation motor is used as a power source, and the power compensation motor is loaded in a closed-loop mode.
The external equipment inputs the road spectrum information acquired in advance to an electrohydraulic servo valve of a servo hydraulic cylinder through a circuit in the form of an electric signal, drives an earring piston rod to generate preset displacement, lifts a shell on one side of a pinion of a test accompanying gear box, drives the shell and the pinion to swing around a large gear shaft of the test accompanying gear box by a certain angle, forms the initial installation phase angle difference between the test accompanying gear box and an input shaft of the test accompanying gear box, and distributes the phase angle difference in a closed loop system according to the torsional rigidity of a part, so that closed loop torque is formed, input torque loading is realized, and the operation stress state of the test gearbox in the actual operation process is simulated by controlling the displacement of the piston rod of the servo hydraulic cylinder.
According to the technical scheme, the platform supporting seat is hinged to the test bed through hinge shafts on two sides of the working platform, so that the closed-loop transmission platform tilts around the shaft, and the side rolling operation working condition is simulated; meanwhile, the clamping sleeve and the clamping piston rod on the clamping device can enable one end of the pinion of the test gear box to generate a certain swing angle and be fixed through the bolts, and the running condition of the nod is simulated, so that the reliability parameters of the test gear box under different dip angles are measured, and the test is more true and reliable.
The invention provides a bidirectional tiltable double-gear-box closed-loop torsion loading test bed for a gear box of a motor train unit transmission system, which is used for testing the reliability of the gear box of the motor train unit transmission system under a dynamic working condition. The test bed adopts the structural design of a closed-loop loading system, utilizes power to circulate in the closed-loop system, reduces energy consumption, and achieves the aim of saving energy; the test bed is also provided with an actuator capable of vertically lifting and pressing the accompanying test gear box, and the whole closed loop loading system is loaded; meanwhile, the platform supporting seat is hinged on the working platform through hinge shafts at two sides of the working platform, so that the closed-loop transmission platform rotates around the shaft, and the side rolling operation working condition is simulated; the clamping sleeve and the clamping piston rod hinged to the clamping support can enable one end of the pinion of the test gear box to generate a certain swinging angle and be fixed through the bolts, and the running condition of the spot head is simulated, so that the reliability of the test gear box under different running conditions is measured. The experiment table can be used for carrying out reliability test on the gearbox of the motor train unit drive train, and avoids danger and loss caused by destructive test on the motor train unit which is actually operated. The research on the reliability of the transmission gear box of the motor train unit has high social value and wide social significance, has good promotion effects on improving the safe operation of the motor train unit, improving the riding comfort of the high-speed motor train unit and the development of the motor train unit technology, and has good social benefit and economic benefit.
Compared with the prior art, the invention has the beneficial effects that:
1. the bidirectional tiltable double-gear box closed loop torsion loading test bed is a tiltable test bed, can simulate and detect reliability tests of the gear boxes under the working conditions of nodding and rolling on a high-speed motor train unit, and has good promotion effects on improving safe operation of the high-speed motor train unit, improving riding comfort of the high-speed motor train unit and development of motor train unit technology.
2. The electro-hydraulic servo actuator applies dynamic force to the pinion end of the accompanying test gear box shell, so that the motor test gear box can swing around the axle, forced dynamic torque is generated in a closed loop formed by the double gear boxes and the synchronous belt, the test gear box is loaded, the actual running condition of the motor train unit gear box in the running process can be simulated, the test bed loading mechanism is simplified, the control is convenient, and the cost is reduced.
3. The bidirectional tiltable double-gear box closed-loop torsion loading test bed adopts a closed-loop loading system, reduces energy consumption by using power in the closed-loop system in a circulating way, can maintain the test by only using a motor with smaller power to compensate part of power, achieves the purpose of saving energy, and meets the requirement of green development roads.
4. The bidirectional tiltable double-gear box closed loop torsion loading test bed can realize the reliability test of the gear box of the motor train unit in a large range of vehicle speed, can meet the reliability test of the gear box of the motor train unit which is already operated or being developed in China, has good promotion effects on improving the safe operation of the motor train unit, improving the riding comfort of the motor train unit and accelerating the development of the motor train unit technology, and has good social benefit and economic benefit.
5. The bidirectional tiltable double-gear box closed loop torsion loading test bed has reasonable structural design, adopts a T-shaped bolt fixed connection mode to install each part on a basic square pipe platform, and can be conveniently overhauled or replaced if one part breaks down, thereby greatly improving the test efficiency of the reliability of the gear box of the motor train unit.
Drawings
FIG. 1 is a schematic diagram of a two-way tiltable dual gearbox closed loop torsional loading test stand of the present invention;
FIG. 2 is a schematic illustration of the structure of the dual tiltable dual gearbox closed loop torsion load stand of the present invention with the actuator 2 and the base plate 28 shown in FIG. 1 removed;
FIG. 3 is a schematic view of the actuator 2 shown in FIG. 1;
fig. 4 is a schematic view of the structure of the clamping device 25 shown in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following examples given in connection with the accompanying drawings.
Referring to fig. 1 and 2, a bidirectional tiltable double-gear box closed loop torsion loading test bed comprises a working platform 1, a power compensation motor 4, a test accompanying gear box 9 and a torque meter 5, wherein the power compensation motor 4, the test accompanying gear box 9 and the torque meter 5 are fixedly arranged on the working platform 1, the test accompanying gear box 9 is erected on the working platform 1 through a large gear shaft 8 thereof and two bearing seats 7 and 10 penetrating through the shaft, the power compensation motor 4 is in driving connection with one end of the large gear shaft 8 of the test accompanying gear box through the torque meter 5, an actuator 2 capable of lifting and pressing a shell of the test accompanying gear box 9 is hinged on a box body at one side of a pinion of the test accompanying gear box 9, a pinion shaft 11 of the test accompanying gear box 9 is connected with an intermediate transmission shaft 13 through a tooth drum type coupling 12, and the other end of the intermediate transmission shaft 13 is provided with a tooth drum type coupling 14 for connecting a pinion shaft of the test gear box 16;
a transmission shaft 24 is erected through the other two bearing seats 21 and 23 fixedly arranged on the working platform 1, a synchronous pulley 6 fixedly arranged on a large gear shaft 8 of the test gear box and a synchronous pulley 22 fixedly arranged on the transmission shaft 24 are in driving connection through a synchronous belt, and a coupler 19 for connecting the large gear shaft 18 of the test gear box 16 is arranged at one end of the transmission shaft 24; two bearing seats 15 and 17 which are used for being arranged on a large gear shaft 18 of the test gearbox 16 in a penetrating manner are also fixedly arranged on the working platform 1;
a clamping device 25 for clamping the test gearbox 16 is also fixedly arranged on the working platform 1;
the working platform 1 is hinged on the base plate 28 through the hinge shafts 20 and the supporting seats 3 at two sides, so that the working platform 1 can tilt around the hinge shafts 20.
The test device also comprises a chute plate 26 fixed on two side edges of the working platform 1 and a locking upright post 27 matched with the chute plate and fixed on the base plate 28, wherein the chute plate is used for locking the working platform 1 after tilting by a certain angle, so that the change of the tilting angle in the test process is prevented, and the rolling operation working condition is simulated.
Referring to fig. 3, the actuator 2 includes a cantilever beam bracket 2.1 fixed on the working platform 1 through bolts, a servo hydraulic cylinder 2.3 and an earring piston rod 2.4, the servo hydraulic cylinder 2.3 is hinged on the actuator bracket 2.1 through a pin shaft 2.2 penetrating through the cantilever beam bracket 2.1, and an earring at the lower end of the earring piston rod 2.4 is hinged on an earring of the accompanying test gearbox 9 through another pin shaft 2.5.
Referring to fig. 4, the clamping device 25 includes a clamping bracket 25.1, a clamping piston rod 25.2, a clamping sleeve 25.3 and a pressing triangle 25.4 which are mounted on the working platform 1 through bolts, the pressing triangle 25.4 is fixedly mounted at the outer end of the clamping bracket 25.1, the length of the shaft is telescopic and is used for pressing a shell of the test gearbox 16, the clamping sleeve 25.3 is hinged at the inner end of the clamping bracket 25.1, the clamping piston rod 25.2 is fixed in the clamping sleeve 25.3 through bolts, and the lower end of the clamping piston rod 25.2 is hinged on an earring of the shell of the test gearbox 16 through a pin shaft, so that the test gearbox 16 swings at a certain angle, and the running condition of a nod is simulated.
Claims (1)
1. The utility model provides a two-way tiltable double gear case closed loop torsion loading test bench, includes work platform (1), sets firmly power compensation motor (4) on work platform (1), accompany test gear case (9) and torque meter (5), its characterized in that:
the power compensation motor (4) is in driving connection with one end of the big gear shaft (8) of the accompanying test gear box (9) through the torque meter (5), an actuator (2) capable of lifting and pressing the shell of the accompanying test gear box (9) is hinged on a box body on one side of a pinion of the accompanying test gear box (9), a pinion shaft (11) of the accompanying test gear box (9) is connected with an intermediate transmission shaft (13) through a tooth drum type coupling (12), and a tooth drum type coupling (14) used for connecting the pinion shaft of the test gear box (16) is arranged at the other end of the intermediate transmission shaft (13);
a transmission shaft (24) is erected through the other two bearing seats (21 and 23) fixedly arranged on the working platform (1), a synchronous pulley (6) fixedly arranged on a large gear shaft (8) of the accompanying test gear box is connected with a synchronous pulley (22) fixedly arranged on the transmission shaft (24) in a driving way through a synchronous belt, and a coupler (19) for connecting the large gear shaft (18) of the test gear box (16) is arranged at one end of the transmission shaft (24); two bearing seats (15 and 17) which are used for being arranged on a large gear shaft (18) of the test gear box (16) in a penetrating manner are also fixedly arranged on the working platform (1);
a clamping device (25) for clamping the test gearbox (16) is also fixedly arranged on the working platform (1);
the working platform (1) is hinged on the base plate (28) through hinge shafts (20) and supporting seats (3) at two sides of the working platform, so that the working platform (1) can tilt around the hinge shafts (20);
the actuator (2) comprises a cantilever beam bracket (2.1) fixed on the working platform (1) through bolts, a servo hydraulic cylinder (2.3) and an earring piston rod (2.4), the servo hydraulic cylinder (2.3) is hinged on the actuator bracket (2.1) through a pin shaft (2.2) penetrating through the cantilever beam bracket (2.1), and an earring at the lower end of the earring piston rod (2.4) is hinged on an earring of the accompanying test gearbox (9) through another pin shaft (2.5);
the clamping device (25) comprises a clamping bracket (25.1), a clamping piston rod (25.2), a clamping sleeve (25.3) and a pressing triangle (25.4) which are arranged on the working platform (1) through bolts, wherein the pressing triangle (25.4) is fixedly arranged at the outer end of the clamping bracket (25.1), the length of the shaft of the pressing triangle is telescopic and is used for pressing a shell of the test gearbox (16), the clamping sleeve (25.3) is hinged at the inner end of the clamping bracket (25.1), the clamping piston rod (25.2) is fixed in the clamping sleeve (25.3) through bolts, and the lower end of the clamping piston rod is hinged on an earring of the shell of the test gearbox (16) through a pin shaft so as to enable the test gearbox (16) to swing a certain angle and simulate the running condition of a nod;
the device also comprises a chute plate (26) fixed on two side edges of the working platform (1) and a locking upright post (27) matched with the chute plate and fixed on the base plate (28) for locking the working platform (1) after tilting for a certain angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869532.2A CN107505132B (en) | 2017-09-23 | 2017-09-23 | Bidirectional tiltable double-gear box closed loop torsion loading test bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710869532.2A CN107505132B (en) | 2017-09-23 | 2017-09-23 | Bidirectional tiltable double-gear box closed loop torsion loading test bed |
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| CN107505132A CN107505132A (en) | 2017-12-22 |
| CN107505132B true CN107505132B (en) | 2024-03-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109470471A (en) * | 2018-11-26 | 2019-03-15 | 郑州高端装备与信息产业技术研究院有限公司 | A kind of retarder is comprehensive performance test bed and retarder performance is two-way test bed |
| CN109632296B (en) * | 2019-02-02 | 2024-04-30 | 中国汽车工程研究院股份有限公司 | Suspension type hollow rail gear box type test comprehensive test bed |
| CN110173472B (en) * | 2019-05-15 | 2024-03-26 | 明阳智慧能源集团股份公司 | Hydraulic system of wind power gear box flexible pin shaft test bench and control method thereof |
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| CN107505132A (en) | 2017-12-22 |
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