WO2014082364A1 - Rotation feature test system of bogie of rail vehicle - Google Patents
Rotation feature test system of bogie of rail vehicle Download PDFInfo
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- WO2014082364A1 WO2014082364A1 PCT/CN2012/087620 CN2012087620W WO2014082364A1 WO 2014082364 A1 WO2014082364 A1 WO 2014082364A1 CN 2012087620 W CN2012087620 W CN 2012087620W WO 2014082364 A1 WO2014082364 A1 WO 2014082364A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
- G01M17/10—Suspensions, axles or wheels
Definitions
- the invention relates to a field vehicle detecting device, in particular to a rail vehicle bogie rotation characteristic testing system.
- the performance parameters of bogies affect the running quality of vehicles, which directly determines the dynamic performance and operational safety of vehicles. And driving stability.
- the value of the rotary resistance torque affects the dynamic performance of the bogie. The selection of the rotary resistance torque should ensure that the vehicle has sufficient anti-snake stability and good curve passing ability. Therefore, it is determined that the bogie rotation resistance torque is the bogie. The key to design and optimization.
- Patent of Jilin University patent name: four-column rail vehicle bogie stiffness test system; patent number: ZL200810050261.9
- the patent discloses a four-column rail vehicle bogie stiffness test system, and proposes a bogie parameter test method.
- the bogie rotation characteristic test is performed, the two longitudinal actuator cylinder pairs are passed according to the upper and lower superimposed pressure plate structures in the test system.
- the reverse telescopic force of the upper pressing plate drives the lower pressing plate to rotate, and the lower pressing plate directly applies force to the bogie to realize the testing of the rotating motion.
- this method is complicated in operation, and the method of applying force to the bogie by the friction pair cannot accurately measure the rotation characteristics of the bogie, and the test precision is low.
- an object of the present invention is to provide a test system for the bogie characteristics of a bogie of a railway vehicle, and to develop a test platform for the bogie characteristics of the bogie.
- the central axis and the lateral positioning assembly are used to realize the positioning of the platform in the lateral direction, and the test bench is provided. Rotating the center to achieve accurate measurement of the turning characteristics of the finished vehicle and the completion of the bogie, providing a basis for the evaluation of vehicle performance.
- the present invention provides a railway vehicle bogie rotation characteristic testing system, which is characterized in that: mainly consists of a test platform, a longitudinal actuator, a vertical actuator, a central axis and a lateral positioning assembly, and the characteristics thereof are
- the test platform is a rectangular parallelepiped structure connected to the two longitudinal actuators in the longitudinal direction, and is rotated by the staggered expansion and contraction of the two longitudinal actuators; the four vertical actuators support the test platform, and the upper ends are fixedly connected thereto.
- the lower part On the lower plane of the test platform, the lower part is fixed on the basis of the test platform, and four vertical actuators provide the vertical support of the test platform and provide compensation for the motion of the test platform during the rotary motion; the central axis and the lateral positioning assembly It is fixed on the base platform, and the upper part is connected with the test platform through the positioning shaft to realize the lateral positioning of the test platform.
- the test platform is released in the longitudinal direction, and the longitudinal freedom is not restricted.
- the test platform is mainly composed of a rotary platform, a wheelset stop assembly, a wheelset clamping mechanism assembly and a transition rail assembly.
- the rotary platform is a rectangular parallelepiped structure and a welded part, and the upper surface is processed with several T Type mounting groove provides mounting platform for wheelset stop assembly, wheelset clamping mechanism assembly and transition rail assembly, and T
- the opening of the groove is adapted to the detection of vehicles with different wheelbases and gauges
- the slewing platform is the bearing mechanism of the entire test rig, which is an important component of the completion of the vehicle slewing test;
- the lower end face has a central hole and 8 Threaded holes arranged in a circle for mounting with the central axis and the central axis of the lateral positioning assembly.
- the wheelset stops are always four sets, the structure is the same, and the installation position is symmetric about the center of the rotary platform, and passes through the T T-bolt fixed on the rotary platform
- the stop action of the wheel pair is realized during the test, both of which are composed of the wheel block, the wheel track and the wheel block, and the lower end support of the wheel block is fixed on the wheel block, the upper end block
- the rounded portion of the block is placed on the tread of the wheel pair to provide a longitudinal thrust of the wheel pair;
- the wheel track is fixed in a groove in the surface of the wheel block to provide a track for loading the bogie during testing;
- the wheel block is hollow and has a section of 'work' shape, which is fixed on the rotary platform.
- the four wheel stop mechanisms provided on the swing platform realize the longitudinal positioning of the bogie.
- the wheel pair clamping mechanism is always four sets, the structure is the same, the installation position is symmetric about the center of the rotary platform, and is fixed in the installation threaded hole provided on the upper surface of the rotary platform, and the fixing of the wheel pair clamping mechanism can be adjusted at the same time.
- the transition track assembly is mainly composed of a transition rail and a rail press block.
- the transition rail is a standard rail, and is fixedly mounted on the swing platform by a plurality of rail clamps, thereby providing a smooth guiding of the tested vehicle to the test bench.
- Conditions, and the upper ends of the transition rails are coplanarly mounted on the upper surface of the load rail strips in the wheelset clamping mechanism assembly, so that the bogie is smoothly pushed to the test bench; the rail clamps are fixedly mounted on the rails Slewing platform In the T-slot, the transition rail is compressed.
- the longitudinal actuator and the vertical actuator are the electro-hydraulic servo system of the test bench, and the two longitudinal actuators, the lower ball joint points of each actuator are fixed by the fastening bolts in the test.
- the upper ball joint is connected to the longitudinal end face of the rotary platform by bolts, and the two longitudinal actuators provide longitudinal support for the rotary characteristic test platform, and the two longitudinal actuators are staggered and telescopically moved to realize the test platform around the center of rotation.
- Rotational motion the angle of rotation is ⁇ 8 °; four vertical actuators support the test platform, the upper end ball joint is fixedly connected to the lower plane of the test platform, the lower ball joint is fixed on the test platform, and the four vertical actuators provide the test platform. Vertical support and compensation for the motion of the test platform during the swing motion.
- the central shaft and the lateral positioning assembly are mainly composed of a central shaft and a positioning device, and the central shaft is fixedly connected to the rotary platform through a small shaft and a bolt at one end thereof; The other end of the lateral positioning assembly passes through the positioning square pier The T-bolt is attached to the base platform to provide vertical support for the swing platform.
- the central axis is a stepped structure, and one end of the shaft is a thin shaft, which is used as a positioning shaft when mounted on the rotary platform, and the flange close to the thin shaft end is fixedly connected with the rotary platform by bolts; the axis of the other end is the thick shaft
- the end is the rotary shaft of the test platform and is coaxially mounted with the slider in the positioning device to provide a rotation center when the test platform is used for the rotary motion.
- the positioning device is mainly composed of a lateral restraining device and a positioning square pier.
- the lateral restraint device is mainly composed of a lateral positioning baffle, a slider stop and a slider.
- the lateral positioning baffle is two sets, the structure is the same, and the positioning square pier is bolted to provide lateral constraint of the slider.
- the slider stop is fixed at two ends of the lateral positioning baffle, and the slider is matched and installed in a channel formed by two sets of lateral positioning baffles, the structure is fixedly constrained in the lateral direction, and the degree of freedom in the longitudinal direction is released.
- the slider is a rectangular parallelepiped structure with a through hole in the middle to provide lateral binding force for the rotary platform And the center of rotation of the swing motion.
- the rail vehicle bogie rotation characteristic test system discloses a method for measuring the rotation characteristic, and can realize the measurement of the large rotation angle, and the rotation angle can reach ⁇ 8 °.
- the rail vehicle bogie rotation characteristic test system develops a wheel alignment mechanism, which provides vertical, lateral and longitudinal positioning constraints of the bogie, and provides conditions for the swing test.
- the rail vehicle bogie rotation characteristic test system of the present invention develops a central shaft and a lateral positioning assembly, and provides a lateral constrained positioning and a swing center for the swing platform.
- FIG. 1 is a perspective view showing the test of the bogie of the railway vehicle bogie rotation characteristic test system according to the present invention
- FIG. 2 is an exploded view showing the structure of a railway vehicle bogie rotation characteristic test system according to the present invention
- Figure 3 is a perspective view of the rotary platform of the present invention.
- Figure 4 is a cross-sectional view of the slewing platform of the present invention.
- Figure 5 is a perspective view of the axle assembly assembly of the present invention.
- Figure 6 is an exploded view of the wheel block mechanism assembly of the present invention.
- Figure 7 is a perspective view of the wheelset clamping mechanism assembly of the present invention.
- Figure 8-a is a perspective view of the axial alignment of the wheel-clamping mechanism assembly clamping wheel pair according to the present invention.
- Figure 8-b is a front view showing the state of the pair of clamping wheel assembly of the wheelset clamping mechanism assembly according to the present invention.
- Figure 9 is a perspective view of the transitional track assembly of the present invention.
- Figure 10 is a central axis and lateral positioning assembly according to the present invention
- Figure 11 is a schematic view of the central axis of the present invention.
- Figure 12-a is an isometric projection view of the central axis of the present invention.
- Figure 12-b is a cross-sectional view of the central axis in the axial direction of the present invention.
- Figure 13 is a perspective view of the positioning device of the present invention.
- Figure 14 is a perspective projection view of the lateral restraint device of the present invention.
- Figure 15 is an isometric projection view of the positioning square pier of the present invention.
- 16 is a schematic view showing the working process of the steering characteristic test system of the rail vehicle bogie according to the present invention.
- Base platform A. Test platform, B. Longitudinal actuator, C. Vertical actuator, D central axis and lateral positioning assembly;
- a. slewing platform b. wheelset stop assembly, c. wheelset clamping mechanism assembly, d. transition track assembly, e. center shaft, f. Positioning means;
- the test system for the rotation characteristics of the bogie of the railway vehicle is mainly composed of the test platform A and the longitudinal actuator B.
- the vertical actuator C, the central shaft and the lateral positioning assembly D are characterized in that the test platform A is a rectangular parallelepiped structure and is longitudinally oriented with two longitudinal actuators B Bolting is carried out by means of the staggered expansion and contraction of the two longitudinal actuators B; wherein four vertical actuators C propel the test platform A and the upper end hinges are bolted to the test platform A
- the lower hinge is fixed on the test bench, and the four vertical actuators C provide the vertical support of the test platform A and provide compensation for the platform motion during the rotary motion;
- the central axis and the lateral positioning assembly D pass
- the joint realizes the lateral positioning of the test bench, and the test platform
- the longitudinal actuator B and the vertical actuator C are electro-hydraulic servo systems of the test bench, and the two longitudinal actuators B Composition, the lower hinge point of each actuator is fixed on the test bench base by fastening bolts, and the upper hinge point passes through the bolt and the rotary platform.
- the longitudinal end faces are bolted together, and the two longitudinal actuators provide longitudinal support for the rotary characteristic test rig.
- the two longitudinal actuators are staggered and telescopically moved to realize the rotary motion of the test rig around the center of rotation, and the rotation angle can reach ⁇ 8 °;
- four vertical actuators C support the test platform A, the upper end hinge is bolted to the lower plane of the test platform A, the lower hinge is fixed on the test bench,
- four vertical actuators C Provides vertical support for the test platform A and provides compensation for platform motion during the swing motion.
- the test platform A is mainly composed of a rotary platform a, a wheelset stop assembly b, a wheelset clamping mechanism assembly c and a transition track assembly d Composition.
- the rotary platform a is a rectangular parallelepiped structure, welded parts, and a plurality of T-shaped mounting grooves are formed on the upper surface, which is a wheel pair stop assembly.
- the wheelset clamping mechanism assembly c and the transition rail assembly d provide a mounting platform, and the T-slot is opened to accommodate the detection of vehicles with different wheelbases and gauges, and the rotary platform a
- the bearing mechanism of the whole test bench is an important component of the completion of the vehicle rotation test;
- the lower end surface has a central hole and eight circumferentially arranged threaded holes for mounting with the central axis and the lateral positioning assembly D central axis e.
- the wheelset stop assembly b is four sets, the structure is the same, and its installation position is about the rotary platform.
- the center is symmetrical and is fixed in the T-shaped mounting groove on the swivel platform a by T-bolts to achieve the stop of the wheel pair during the test.
- Both have wheel blocks 1 , wheel rail 2 and wheel block 3
- the lower end support of the wheel block 1 is fixed on the wheel block 3 by bolts, and the rounded portion of the upper end is placed on the tread surface of the wheel pair to provide a longitudinal thrust of the wheel pair
- Track 2 It is fixed in the groove on the surface of the wheel block 3 by two bolts to provide the track for loading the bogie during the test
- the wheel block 3 is a hollow structure with a 'work' shape through the bolt Fixed on the rotary platform a In the upper T-shaped mounting groove, the four wheel-stop mechanisms provided on the swivel platform a realize the longitudinal positioning of the bogie.
- the wheelset clamping mechanism assembly c is four sets, the structure is the same, and its installation position is about the rotary platform.
- the center is symmetrical and is bolted to the mounting threaded hole provided on the upper surface of the swivel platform a.
- the fixed position of the wheel pair clamping mechanism can be adjusted to accommodate wheel pairs of different track heights.
- Both are made of 'L' shaped oblique iron 4
- the carrier rail strip 5 and the wheelset clamping bracket 6 are formed, and the wheelset clamping bracket 6 is fixed by bolts in the T-shaped groove of the rotary platform a, and carries the rail strip 5 and the wheelset clamping support 6 After bolting, the vehicle under test is stopped on the load rail strip 5, and the 'L'-shaped inclined iron 4 is pressed into the wheel pair 7 outer side and the wheel pair clamping support 6 Between the two, the wheel pair is positioned and clamped horizontally, and the friction between the three forces exerts a certain binding force on the longitudinal and vertical directions of the wheel pair.
- the transition rail assembly d is mainly composed of a transition rail 8 and a rail clamp 9, which is a transition rail 8 It is a standard type of rail, which is fixedly mounted on the rotary platform a through a plurality of rail clamps 9 to provide conditions for the test vehicle to be smoothly guided to the test bench, and the track top and the wheelset clamping mechanism assembly at both ends of the transition rail 8 c
- the upper plane of the carrier rail strip 5 is installed in a coplanar manner to smoothly push the bogie to the test rig; the rail clamp 9 is fixedly mounted in the T-slot of the slewing platform a by T-bolts, and the compression transition track 8 .
- the central axis e is a stepped structure, and one end of the shaft is thin, as a rotary platform a
- the positioning shaft is installed, and the flange near the thin shaft end is fixedly connected with the rotary platform a by bolts; the thicker shaft end at the other end is the rotary shaft of the test bench and the slider in the positioning device f 14
- Coaxial mounting provides the center of rotation of the test rig for rotary motion.
- the positioning device f is mainly composed of a lateral restraining device 10 and a positioning square pier 11.
- the lateral restraint device 10 is mainly composed of a lateral positioning baffle 12, a slider stop 13 and a slider 14
- the two lateral positioning baffles 12 are of the same structure and are bolted to the positioning square pier 11 to provide lateral restraint of the slider 14; the slider stop 13 is fixed to the lateral positioning baffle by bolts.
- the slider 14 is fitted to two sets of lateral positioning baffles 12 In the channel formed, the structure is fixedly constrained in the lateral direction, and the degree of freedom in the longitudinal direction is released to prevent the two longitudinal actuators of the test bench from being pushed and pulled in the same direction to cut the rotary shaft due to the control misalignment of the electro-hydraulic servo system; Slider 14 For the rectangular parallelepiped structure, a through hole is opened in the middle to provide a lateral binding force and a rotational center of the rotary motion for the rotary platform a.
- FIG. 16 The schematic diagram of the working principle of the rotary characteristic test system for the bogie of the railway vehicle according to the present invention.
- First establish the coordinate system of the test bench, with the direction of travel of the train as the X axis, the direction of lateral movement as the Y axis, and the vertical direction as Z. Axis.
- the four vertical actuators of the test platform provide vertical support for the vehicle on board; two longitudinal actuators are staggered with a phase difference of 180 °, and the displacement control of the actuator to realize the rotary motion of the test platform, can simulate different rotation speeds, and realize the rotation test of the air spring out of gas, normal air pressure and overcharge state.
- the test can complete the measurement of the steering characteristics of the bogie in the state of completion of the whole vehicle, and can realize the measurement of the rotation characteristics of the bogie and the simulated vehicle weight.
- the rotation characteristics of the rotary characteristic test system of the rail vehicle bogie are calibrated to determine the relationship between the rotation characteristics of the test platform itself and the swing angle, that is, the rotation characteristic curve of the test platform is obtained; during the test Through the data acquisition system, the force of the actuator feedback and the displacement value of the two longitudinal actuators during the rotary motion are continuously recorded, and then the data processing is performed to obtain the overall rotation characteristic curve of the vehicle and the test platform, and the test bench
- the calibration curve is used to obtain the rotation characteristic curve of the vehicle or the bogie, and the rotation resistance coefficient of the bogie can also be determined to evaluate the vehicle.
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A rotation feature test system of a bogie of a rail vehicle is mainly formed by a test platform (A), longitudinal actuators (B), perpendicular actuators (C), a center shaft, and transverse positioning assembly (D). The test platform (A) is in a cuboid structure, and in a longitudinal direction, the test platform (A) is connected to two longitudinal actuators (B) and performs rotational motion by staggered expansion and retraction of the two longitudinal actuators (B). Four perpendicular actuators (C) support the test platform (A), upper ends are fixedly connected on a lower plane of the test platform (A), and lower parts are fixed on the test platform (A). The four perpendicular actuators (C) provide perpendicular support of the test platform (A) and provide motion compensation of the test platform (A) in a process of rotational motion. The center shaft and the transverse positioning assembly (D) are fixed on a base platform, and an upper part is connected to the test platform (A) by using a positioning shaft (e), so as to implement lateral positioning of the test platform (A). The test system implements measurement of a large rotation angle, and the rotation angle can reach +/-8 degrees. Wheel set positioning mechanisms provide positioning constraint of the bogie in a perpendicular direction, a transverse direction, and a longitudinal direction, thereby providing conditions for a rotation test. The center shaft and the transverse positioning assembly (D) provide transverse constraint positioning and a rotation center for the rotation platform (a).
Description
技术领域 Technical field
本发明涉及轨道车辆领域检测设备,特别是涉及一种轨道车辆转向架回转特性测试***。 The invention relates to a field vehicle detecting device, in particular to a rail vehicle bogie rotation characteristic testing system.
背景技术 Background technique
随着轨道车辆高速重载的发展趋势,车辆的运行性能受到越来越高的关注,转向架的性能参数的优劣影响车辆的运行品质,直接决定了车辆各项动力学性能、运行安全性及行车稳定性。回转阻力矩取值的大小影响转向架的动力学性能,回转阻力矩的选取应保证车辆具有足够的抗蛇行稳定性,同时具有良好的曲线通过能力,故准确确定转向架回转阻力矩是转向架设计及优化的关键。
With the development trend of high-speed and heavy-duty vehicles, the running performance of vehicles is receiving more and more attention. The performance parameters of bogies affect the running quality of vehicles, which directly determines the dynamic performance and operational safety of vehicles. And driving stability. The value of the rotary resistance torque affects the dynamic performance of the bogie. The selection of the rotary resistance torque should ensure that the vehicle has sufficient anti-snake stability and good curve passing ability. Therefore, it is determined that the bogie rotation resistance torque is the bogie. The key to design and optimization.
目前,对于轨道车辆转向架回转特性的测试还没有专门的试验台对其测定,主要是依托转向架参数测试台上进行,经检索:( 1
)西南交通大学专利,专利名称:轨道车辆转向架测试台;专利号: ZL200610022671.3
;该专利公开了一种转向架参数测定试验台,此测试台采用以钢球为核心的浮动支撑并提供试验台的回转中心,试验台横向的两个作动器交错伸缩运动推动试验平台做回转运动,从而达到转向架回转特性测试的目的。但是该试验台作动器的伸缩行程很小只能测定小角度的回转运动,对于大角度的回转运动难以实现,从而降低了试验测试的精度,不能真实反映出车辆的回转特性。(
2 )吉林大学专利,专利名称:四柱式轨道车辆转向架刚度测试***;专利号: ZL200810050261.9
;该专利公开了一种四柱式轨道车辆转向架刚度测试***,并提出转向架参数的测试方法,对转向架回转特性测试时依托测试***中上下叠加的压板结构,两纵向作动油缸对通过上压板反向伸缩施力带动下压板回转运动,同时下压板直接对转向架施力实现回转运动的测试。但此方式操作复杂,且依靠摩擦副对转向架施力的方式,不能精确的对转向架回转特性进行测定,测试精度低。
At present, there is no special test bench for the test of the rotating characteristics of the bogie of the rail vehicle, which is mainly carried out on the test bench of the bogie parameter.
Southwest Jiaotong University patent, patent name: rail vehicle bogie test bench; patent number: ZL200610022671.3
The patent discloses a bogie parameter measurement test bench, which adopts a floating support with a steel ball as a core and provides a rotary center of the test bench, and two actuators in the lateral direction of the test bench are staggered and telescopically moved to push the test platform. Rotating motion to achieve the purpose of bogie rotation characteristics test. However, the telescopic stroke of the test bench actuator can only measure the small-angle rotary motion, which is difficult to realize for the large-angle rotary motion, thereby reducing the accuracy of the test and the true rotation of the vehicle. (
2) Patent of Jilin University, patent name: four-column rail vehicle bogie stiffness test system; patent number: ZL200810050261.9
The patent discloses a four-column rail vehicle bogie stiffness test system, and proposes a bogie parameter test method. When the bogie rotation characteristic test is performed, the two longitudinal actuator cylinder pairs are passed according to the upper and lower superimposed pressure plate structures in the test system. The reverse telescopic force of the upper pressing plate drives the lower pressing plate to rotate, and the lower pressing plate directly applies force to the bogie to realize the testing of the rotating motion. However, this method is complicated in operation, and the method of applying force to the bogie by the friction pair cannot accurately measure the rotation characteristics of the bogie, and the test precision is low.
发明内容 Summary of the invention
针对以上问题,本发明的目的是提供一种轨道车辆转向架回转特性测试***,开发转向架回转特性试验平台,依靠中心轴及横向定位总成实现了平台在横向的定位,同时提供试验台的转动中心,实现在整车落成及转向架落成状态回转特性的精确测定,为车辆性能的评估提供了依据。
In view of the above problems, an object of the present invention is to provide a test system for the bogie characteristics of a bogie of a railway vehicle, and to develop a test platform for the bogie characteristics of the bogie. The central axis and the lateral positioning assembly are used to realize the positioning of the platform in the lateral direction, and the test bench is provided. Rotating the center to achieve accurate measurement of the turning characteristics of the finished vehicle and the completion of the bogie, providing a basis for the evaluation of vehicle performance.
为实现上述目的,本发明提供一种轨道车辆转向架回转特性测试***,其特征在于:主要由试验平台、纵向作动器、垂向作动器、中心轴及横向定位总成组成,其特征在于,所述的试验平台为长方体结构,在纵向与两纵向作动器连接,依靠两纵向作动器的交错伸缩进行回转运动;四个垂向作动器支撑试验平台,其上端固定连接在试验平台的下平面上,下部固定在试验平台的基础上,四个垂向作动器提供试验平台的垂向支撑及在回转运动过程中提供试验平台运动的补偿;中心轴及横向定位总成固定在基础平台上,上部通过定位轴与试验平台连接,实现试验平台的横向定位,试验平台在纵向方向是放开的,纵向自由度不受约束。
To achieve the above object, the present invention provides a railway vehicle bogie rotation characteristic testing system, which is characterized in that: mainly consists of a test platform, a longitudinal actuator, a vertical actuator, a central axis and a lateral positioning assembly, and the characteristics thereof are The test platform is a rectangular parallelepiped structure connected to the two longitudinal actuators in the longitudinal direction, and is rotated by the staggered expansion and contraction of the two longitudinal actuators; the four vertical actuators support the test platform, and the upper ends are fixedly connected thereto. On the lower plane of the test platform, the lower part is fixed on the basis of the test platform, and four vertical actuators provide the vertical support of the test platform and provide compensation for the motion of the test platform during the rotary motion; the central axis and the lateral positioning assembly It is fixed on the base platform, and the upper part is connected with the test platform through the positioning shaft to realize the lateral positioning of the test platform. The test platform is released in the longitudinal direction, and the longitudinal freedom is not restricted.
所述的试验平台主要由回转平台、轮对止挡总成、轮对夹紧机构总成及过渡轨道总成组成,所述的回转平台为长方体结构、焊接件,上表面加工有数个 T
型安装槽,为轮对止挡总成、轮对夹紧机构总成及过渡轨道总成提供安装平台,同时 T
型槽的开设适应了不同轴距、轨距的车辆的检测,且回转平台为整个试验台的承载机构,是车辆回转试验完成的重要组成;其下端面开有一中心孔及 8
个圆周排列的螺纹孔,用于与中心轴及横向定位总成中心轴的安装。
The test platform is mainly composed of a rotary platform, a wheelset stop assembly, a wheelset clamping mechanism assembly and a transition rail assembly. The rotary platform is a rectangular parallelepiped structure and a welded part, and the upper surface is processed with several T
Type mounting groove provides mounting platform for wheelset stop assembly, wheelset clamping mechanism assembly and transition rail assembly, and T
The opening of the groove is adapted to the detection of vehicles with different wheelbases and gauges, and the slewing platform is the bearing mechanism of the entire test rig, which is an important component of the completion of the vehicle slewing test; the lower end face has a central hole and 8
Threaded holes arranged in a circle for mounting with the central axis and the central axis of the lateral positioning assembly.
所述的轮对止挡总成为四套,结构相同,且其安装位置关于回转平台的中心对称,并通过 T
形螺栓固定在回转平台上的 T
形安装槽中,试验时实现轮对的止挡作用,二者均由轮挡、轮轨及轮挡垫块组成,所述的轮挡的下端支座固定在轮挡垫块上,上端挡块的圆角部分顶在轮对的踏面上,提供轮对纵向的止推力;所述的轮轨固定在轮挡垫块表面的凹槽中,以提供试验时装载转向架的轨道;所述的轮挡垫块为空心的、断面呈'工'字形的结构,固定在回转平台上的
T 形安装槽中,回转平台上所设置的四个轮挡机构实现转向架的纵向定位。 The wheelset stops are always four sets, the structure is the same, and the installation position is symmetric about the center of the rotary platform, and passes through the T
T-bolt fixed on the rotary platform
In the shape of the installation groove, the stop action of the wheel pair is realized during the test, both of which are composed of the wheel block, the wheel track and the wheel block, and the lower end support of the wheel block is fixed on the wheel block, the upper end block The rounded portion of the block is placed on the tread of the wheel pair to provide a longitudinal thrust of the wheel pair; the wheel track is fixed in a groove in the surface of the wheel block to provide a track for loading the bogie during testing; The wheel block is hollow and has a section of 'work' shape, which is fixed on the rotary platform.
In the T-shaped mounting groove, the four wheel stop mechanisms provided on the swing platform realize the longitudinal positioning of the bogie.
所述的轮对夹紧机构总成为四套,结构相同,其安装位置关于回转平台的中心对称,并固定在回转平台上表面设置的安装螺纹孔中,同时可调整轮对夹紧机构的固定位置以适应不同轮距的轮对,二者均由'
L '形斜铁、承载轨道条及轮对夹紧支座组成,所述的轮对夹紧支座固定在回转平台的 T
型槽中,承载轨道条与轮对夹紧支座通过螺栓连接,被测车辆停在承载轨道条上后,将' L
'形斜铁压入轮对外侧面与轮对夹紧支座之间,对轮对实现横向的定位夹紧,同时三者之间的摩擦力作用对轮对纵向及垂向产生一定的约束力。
The wheel pair clamping mechanism is always four sets, the structure is the same, the installation position is symmetric about the center of the rotary platform, and is fixed in the installation threaded hole provided on the upper surface of the rotary platform, and the fixing of the wheel pair clamping mechanism can be adjusted at the same time. Position to accommodate wheel sets of different track, both by '
L 'shaped inclined iron, carrying track strip and wheel set clamping support, said wheel set clamping support fixed on the rotary platform T
In the groove, the bearing rail strip and the wheelset clamping bearing are connected by bolts, and after the vehicle to be tested is stopped on the carrying rail strip, the 'L'
'The oblique iron is pressed into the wheel between the outer side and the wheel pair clamping support, and the wheel pair realizes the horizontal positioning and clamping, and the friction between the three forces exerts a certain binding force on the longitudinal and vertical direction of the wheel pair. .
所述的过渡轨道总成主要由过渡轨道及轨道压块组成,所述的过渡轨道为标准钢轨,通过数块轨道压块固定安装在回转平台上,为被试车辆顺利引导至试验台提供了条件,且过渡轨道的两端的轨道上面与轮对夹紧机构总成中的承载轨道条的上平面共面安装,实现平稳的将转向架推至试验台;所述的轨道压块固定安装在回转平台的
T 型槽中,压紧过渡轨道。
The transition track assembly is mainly composed of a transition rail and a rail press block. The transition rail is a standard rail, and is fixedly mounted on the swing platform by a plurality of rail clamps, thereby providing a smooth guiding of the tested vehicle to the test bench. Conditions, and the upper ends of the transition rails are coplanarly mounted on the upper surface of the load rail strips in the wheelset clamping mechanism assembly, so that the bogie is smoothly pushed to the test bench; the rail clamps are fixedly mounted on the rails Slewing platform
In the T-slot, the transition rail is compressed.
所述的纵向作动器、垂向作动器为该试验台的电液伺服***,所述的两个纵向作动器,每个作动器的下球铰点通过紧固螺栓固定在试验平台基础上,上球铰点通过螺栓与回转平台纵向端面连接,两纵向作动器为回转特性试验平台提供了纵向的支撑,同时两个纵向作动器交错伸缩运动实现了试验平台绕回转中心的回转运动,其回转角为±
8
°;四个垂向作动器将试验平台撑起,其上端球铰固定连接在试验平台的下平面上,下部球铰固定在试验平台的基础上,四个垂向作动器提供试验平台的垂向支撑及在回转运动过程中提供试验平台运动的补偿。
The longitudinal actuator and the vertical actuator are the electro-hydraulic servo system of the test bench, and the two longitudinal actuators, the lower ball joint points of each actuator are fixed by the fastening bolts in the test. On the basis of the platform, the upper ball joint is connected to the longitudinal end face of the rotary platform by bolts, and the two longitudinal actuators provide longitudinal support for the rotary characteristic test platform, and the two longitudinal actuators are staggered and telescopically moved to realize the test platform around the center of rotation. Rotational motion, the angle of rotation is ±
8
°; four vertical actuators support the test platform, the upper end ball joint is fixedly connected to the lower plane of the test platform, the lower ball joint is fixed on the test platform, and the four vertical actuators provide the test platform. Vertical support and compensation for the motion of the test platform during the swing motion.
所述的中心轴及横向定位总成主要由中心轴及定位装置组成,所述的中心轴通过其一端的小轴及螺栓实现与回转平台的固连,即成为一体;所述的中心轴及横向定位总成的另一端经由定位方墩通过
T 型螺栓固定在基础平台上,提供回转平台的垂向支撑力。
The central shaft and the lateral positioning assembly are mainly composed of a central shaft and a positioning device, and the central shaft is fixedly connected to the rotary platform through a small shaft and a bolt at one end thereof; The other end of the lateral positioning assembly passes through the positioning square pier
The T-bolt is attached to the base platform to provide vertical support for the swing platform.
所述的中心轴为阶梯状结构,其一端轴为细轴,作为与回转平台安装时的定位轴,并通过螺栓将靠近细轴端的法兰盘与回转平台固定连接;另一端粗轴的轴端为试验平台的回转轴,并与定位装置中的滑块共轴线安装,提供试验平台作回转运动时的转动中心。
The central axis is a stepped structure, and one end of the shaft is a thin shaft, which is used as a positioning shaft when mounted on the rotary platform, and the flange close to the thin shaft end is fixedly connected with the rotary platform by bolts; the axis of the other end is the thick shaft The end is the rotary shaft of the test platform and is coaxially mounted with the slider in the positioning device to provide a rotation center when the test platform is used for the rotary motion.
所述的定位装置主要由横向约束装置及定位方墩组成。 The positioning device is mainly composed of a lateral restraining device and a positioning square pier.
所述的横向约束装置主要由横向定位挡板、滑块止挡及滑块组成,所述的横向定位挡板为两套,结构相同,与定位方墩进行螺栓连接,提供滑块的横向约束;所述的滑块止挡固定在横向定位挡板的两端,滑块配合安装在两套横向定位挡板组成的通道中,该结构在横向是固定约束的,纵向方向自由度放开,防止因电液伺服***的控制失调导致试验平台的两纵向作动器向同一方向推拉将回转轴剪断;所述的滑块为长方体结构,中间开有通孔,为回转平台提供横向的约束力及回转运动的转动中心。
The lateral restraint device is mainly composed of a lateral positioning baffle, a slider stop and a slider. The lateral positioning baffle is two sets, the structure is the same, and the positioning square pier is bolted to provide lateral constraint of the slider. The slider stop is fixed at two ends of the lateral positioning baffle, and the slider is matched and installed in a channel formed by two sets of lateral positioning baffles, the structure is fixedly constrained in the lateral direction, and the degree of freedom in the longitudinal direction is released. Preventing the two longitudinal actuators of the test platform from being pushed and pulled in the same direction to cut the rotary shaft due to the control misalignment of the electro-hydraulic servo system; the slider is a rectangular parallelepiped structure with a through hole in the middle to provide lateral binding force for the rotary platform And the center of rotation of the swing motion.
本发明的有益效果如下: The beneficial effects of the present invention are as follows:
1
、本发明所述的轨道车辆转向架回转特性测试***公开了一种回转特性的测定方法,并可实现大回转角度的测量,回转角可达到± 8 °。 1
The rail vehicle bogie rotation characteristic test system according to the present invention discloses a method for measuring the rotation characteristic, and can realize the measurement of the large rotation angle, and the rotation angle can reach ± 8 °.
2
、本发明所述的轨道车辆转向架回转特性测试***开发了轮对定位机构,提供转向架在垂向、横向及纵向的定位约束,为回转试验提供了条件。 2
The rail vehicle bogie rotation characteristic test system according to the present invention develops a wheel alignment mechanism, which provides vertical, lateral and longitudinal positioning constraints of the bogie, and provides conditions for the swing test.
3
、本发明所述的轨道车辆转向架回转特性测试***开发了一种中心轴及横向定位总成,为回转平台提供了横向的约束定位及回转中心。 3
The rail vehicle bogie rotation characteristic test system of the present invention develops a central shaft and a lateral positioning assembly, and provides a lateral constrained positioning and a swing center for the swing platform.
附图说明 DRAWINGS
图 1 是本发明所述的轨道车辆转向架回转特性测试***转向架落成试验效果图; 1 is a perspective view showing the test of the bogie of the railway vehicle bogie rotation characteristic test system according to the present invention;
图 2 是本发明所述的轨道车辆转向架回转特性测试***结构***图; 2 is an exploded view showing the structure of a railway vehicle bogie rotation characteristic test system according to the present invention;
图 3 是本发明所述的回转平台轴测投影图; Figure 3 is a perspective view of the rotary platform of the present invention;
图 4 是本发明所述的回转平台的剖视图; Figure 4 is a cross-sectional view of the slewing platform of the present invention;
图 5 是本发明所述的轮挡机构总成轴测投影图; Figure 5 is a perspective view of the axle assembly assembly of the present invention;
图 6 是本发明所述的轮挡机构总成的***视图; Figure 6 is an exploded view of the wheel block mechanism assembly of the present invention;
图 7 本发明所述的轮对夹紧机构总成的轴测投影图; Figure 7 is a perspective view of the wheelset clamping mechanism assembly of the present invention;
图 8-a 是本发明所述的轮对夹紧机构总成夹紧轮对状态轴测投影图; Figure 8-a is a perspective view of the axial alignment of the wheel-clamping mechanism assembly clamping wheel pair according to the present invention;
图 8-b 是本发明所述的轮对夹紧机构总成夹紧轮对状态主视图; Figure 8-b is a front view showing the state of the pair of clamping wheel assembly of the wheelset clamping mechanism assembly according to the present invention;
图 9 是本发明所述的过渡轨道总成轴测投影图; Figure 9 is a perspective view of the transitional track assembly of the present invention;
图 10 是本发明所述的中心轴及横向定位总成 Figure 10 is a central axis and lateral positioning assembly according to the present invention
图 11 本发明所述的中心轴的示意图; Figure 11 is a schematic view of the central axis of the present invention;
图 12-a 是本发明所述的中心轴的轴测投影图; Figure 12-a is an isometric projection view of the central axis of the present invention;
图 12-b 是本发明所述的中心轴沿轴线方向的剖视图; Figure 12-b is a cross-sectional view of the central axis in the axial direction of the present invention;
图 13 是本发明所述的定位装置的轴测投影图; Figure 13 is a perspective view of the positioning device of the present invention;
图 14 是本发明所述的横向约束装置的轴测投影图; Figure 14 is a perspective projection view of the lateral restraint device of the present invention;
图 15 是本发明所述的定位方墩的轴测投影图; Figure 15 is an isometric projection view of the positioning square pier of the present invention;
图 16 是本发明所述的轨道车辆转向架回转特性测试***工作过程示意图; 16 is a schematic view showing the working process of the steering characteristic test system of the rail vehicle bogie according to the present invention;
图中: Ι. 被试转向架,Ⅱ . 轨道车辆转向架回转特性测试***, = 3 \* ROMAN III .
基础平台; A. 试验平台, B. 纵向作动器, C. 垂向作动器, D 中心轴及横向定位总成 ; In the figure: Ι. Test bogie, II. Rotating characteristic test system for railway vehicle bogie, = 3 \* ROMAN III .
Base platform; A. Test platform, B. Longitudinal actuator, C. Vertical actuator, D central axis and lateral positioning assembly;
a. 回转平台,b. 轮对止挡总成, c. 轮对夹紧机构总成,d. 过渡轨道总成,e. 中心轴,f.
定位装置; a. slewing platform, b. wheelset stop assembly, c. wheelset clamping mechanism assembly, d. transition track assembly, e. center shaft, f.
Positioning means;
1. 轮挡, 2. 轮轨3. 轮挡垫块4. L形斜铁,5. 承载轨道条,6. 轮对夹紧支座,7.
轮对,8. 过渡轨道9. 轨道压块10. 横向约束装置11. 定位方墩12. 横向定位挡板13.滑块止挡14. 滑块。 1. Wheel block, 2. Wheel track 3. Wheel block 4. L-shaped slanting iron, 5. Carrying track strip, 6. Wheelset clamping support, 7.
Wheelset, 8. Transition track 9. Track clamp 10. Lateral restraint 11. Positioning square pier 12. Lateral positioning baffle 13. Slider stop 14. Slider.
具体实施方式 detailed description
参阅图 1-2 ,本发明所述的轨道车辆转向架回转特性测试***,主要由试验平台 A 、纵向作动器 B
、垂向作动器 C 、中心轴及横向定位总成 D 组成,其特征在于,所述的试验平台 A 为长方体结构,在纵向方向上与两纵向作动器 B
进行螺栓连接,依靠两纵向作动器 B 的交错伸缩进行回转运动;其中,四个垂向作动器 C 将试验平台 A 撑起,其上端铰链通过螺栓固定连接在试验平台 A
的下平面上,下部铰链固定在试验台的基础上,四个垂向作动器 C 提供试验平台 A 的垂向支撑及在回转运动过程中提供平台运动的补偿;中心轴及横向定位总成 D 通过
T 型螺栓固定在基础平台 = 3 \* ROMAN III 的 T 形安装槽中,同时上部通过定位轴 e 与试验平台 A
联接,实现试验台的横向定位,同时试验平台 A 在纵向方向是放开的,纵向自由度不受约束。 Referring to Figure 1-2, the test system for the rotation characteristics of the bogie of the railway vehicle according to the present invention is mainly composed of the test platform A and the longitudinal actuator B.
The vertical actuator C, the central shaft and the lateral positioning assembly D are characterized in that the test platform A is a rectangular parallelepiped structure and is longitudinally oriented with two longitudinal actuators B
Bolting is carried out by means of the staggered expansion and contraction of the two longitudinal actuators B; wherein four vertical actuators C propel the test platform A and the upper end hinges are bolted to the test platform A
On the lower plane, the lower hinge is fixed on the test bench, and the four vertical actuators C provide the vertical support of the test platform A and provide compensation for the platform motion during the rotary motion; the central axis and the lateral positioning assembly D pass
The T-bolt is fixed in the T-shaped mounting groove of the base platform = 3 \* ROMAN III, while the upper part passes the positioning axis e and the test platform A
The joint realizes the lateral positioning of the test bench, and the test platform A is released in the longitudinal direction, and the longitudinal freedom is not restricted.
所述的纵向作动器 B 、垂向作动器 C 为该试验台的电液伺服***,所述的两个纵向作动器 B
组成,每个作动器的下铰链点通过紧固螺栓固定在试验台基础上,上铰链点通过螺栓与回转平台 a
纵向端面进行螺栓连接,两纵向作动器为回转特性试验台提供了纵向的支撑,同时两个纵向作动器交错伸缩运动实现了试验台绕回转中心的回转运动,其回转角可达到± 8
°;四个垂向作动器 C 将试验平台 A 撑起,其上端铰链通过螺栓固定连接在试验平台 A 的下平面上,下部铰链固定在试验台的基础上,四个垂向作动器 C
提供试验平台 A 的垂向支撑及在回转运动过程中提供平台运动的补偿。 The longitudinal actuator B and the vertical actuator C are electro-hydraulic servo systems of the test bench, and the two longitudinal actuators B
Composition, the lower hinge point of each actuator is fixed on the test bench base by fastening bolts, and the upper hinge point passes through the bolt and the rotary platform.
The longitudinal end faces are bolted together, and the two longitudinal actuators provide longitudinal support for the rotary characteristic test rig. At the same time, the two longitudinal actuators are staggered and telescopically moved to realize the rotary motion of the test rig around the center of rotation, and the rotation angle can reach ± 8
°; four vertical actuators C support the test platform A, the upper end hinge is bolted to the lower plane of the test platform A, the lower hinge is fixed on the test bench, four vertical actuators C
Provides vertical support for the test platform A and provides compensation for platform motion during the swing motion.
所述的试验平台 A 主要由回转平台 a 、轮对止挡总成 b 、轮对夹紧机构总成 c 及过渡轨道总成 d
组成。 The test platform A is mainly composed of a rotary platform a, a wheelset stop assembly b, a wheelset clamping mechanism assembly c and a transition track assembly d
Composition.
参阅图 3-4 ,所述的回转平台 a 为长方体结构、焊接件,上表面开有数个 T 型安装槽,为轮对止挡总成
b 、轮对夹紧机构总成 c 及过渡轨道总成 d 提供安装平台,同时 T 型槽的开设适应了不同轴距、轨距的车辆的检测,且回转平台 a
为整个试验台的承载机构,是车辆回转试验完成的重要组成;其下端面开有一中心孔及八个圆周排列的螺纹孔,用于与中心轴及横向定位总成 D 中心轴 e 的安装。 Referring to Figure 3-4, the rotary platform a is a rectangular parallelepiped structure, welded parts, and a plurality of T-shaped mounting grooves are formed on the upper surface, which is a wheel pair stop assembly.
b. The wheelset clamping mechanism assembly c and the transition rail assembly d provide a mounting platform, and the T-slot is opened to accommodate the detection of vehicles with different wheelbases and gauges, and the rotary platform a
The bearing mechanism of the whole test bench is an important component of the completion of the vehicle rotation test; the lower end surface has a central hole and eight circumferentially arranged threaded holes for mounting with the central axis and the lateral positioning assembly D central axis e.
参阅图 5-6 ,所述的轮对止挡总成 b 为四套,结构相同,且其安装位置关于回转平台 a
的中心对称,并通过 T 形螺栓固定在回转平台 a 上的 T 形安装槽中,试验时实现轮对的止挡作用。二者均有轮挡 1 、轮轨 2 及轮挡垫块 3
组成,所述的轮挡 1 的下端支座通过螺栓固定在轮挡垫块 3 上,上端挡块的圆角部分顶在轮对的踏面上,提供轮对纵向的止推力;所述的轮轨 2
通过两个螺栓固定在轮挡垫块 3 表面的凹槽中,以提供试验时装载转向架的轨道;所述的轮挡垫块 3 为空心的、断面呈'工'字形的结构,通过螺栓固定在回转平台 a
上的 T 形安装槽中,回转平台 a 上所设置的四个轮挡机构实现转向架的纵向定位。 Referring to Figure 5-6, the wheelset stop assembly b is four sets, the structure is the same, and its installation position is about the rotary platform.
The center is symmetrical and is fixed in the T-shaped mounting groove on the swivel platform a by T-bolts to achieve the stop of the wheel pair during the test. Both have wheel blocks 1 , wheel rail 2 and wheel block 3
The lower end support of the wheel block 1 is fixed on the wheel block 3 by bolts, and the rounded portion of the upper end is placed on the tread surface of the wheel pair to provide a longitudinal thrust of the wheel pair; Track 2
It is fixed in the groove on the surface of the wheel block 3 by two bolts to provide the track for loading the bogie during the test; the wheel block 3 is a hollow structure with a 'work' shape through the bolt Fixed on the rotary platform a
In the upper T-shaped mounting groove, the four wheel-stop mechanisms provided on the swivel platform a realize the longitudinal positioning of the bogie.
参阅图 7-8 ,所述的轮对夹紧机构总成 c 为四套,结构相同,其安装位置关于回转平台 a
的中心对称,并通过螺栓固定在回转平台 a 上表面设置的安装螺纹孔中,同时可调整轮对夹紧机构的固定位置以适应不同轮距的轮对。二者均由' L '形斜铁 4
、承载轨道条 5 及轮对夹紧支座 6 组成,所述的轮对夹紧支座 6 通过螺栓固定在回转平台 a 的 T 型槽中,承载轨道条 5 与轮对夹紧支座 6
通过螺栓连接,被测车辆停在承载轨道条 5 上后,将' L '形斜铁 4 的压入轮对 7 外侧面与轮对夹紧支座 6
之间,对轮对实现横向的定位夹紧,同时三者之间的摩擦力作用对轮对纵向及垂向产生一定的约束力。 Referring to Figure 7-8, the wheelset clamping mechanism assembly c is four sets, the structure is the same, and its installation position is about the rotary platform.
The center is symmetrical and is bolted to the mounting threaded hole provided on the upper surface of the swivel platform a. At the same time, the fixed position of the wheel pair clamping mechanism can be adjusted to accommodate wheel pairs of different track heights. Both are made of 'L' shaped oblique iron 4
The carrier rail strip 5 and the wheelset clamping bracket 6 are formed, and the wheelset clamping bracket 6 is fixed by bolts in the T-shaped groove of the rotary platform a, and carries the rail strip 5 and the wheelset clamping support 6
After bolting, the vehicle under test is stopped on the load rail strip 5, and the 'L'-shaped inclined iron 4 is pressed into the wheel pair 7 outer side and the wheel pair clamping support 6
Between the two, the wheel pair is positioned and clamped horizontally, and the friction between the three forces exerts a certain binding force on the longitudinal and vertical directions of the wheel pair.
参阅图 9 ,所述的过渡轨道总成 d 主要由过渡轨道 8 及轨道压块 9 组成,所述的过渡轨道 8
为标准型钢轨,通过数块轨道压块 9 固定安装在回转平台 a 上,为被试车辆顺利引导至试验台提供了条件,且过渡轨道 8 的两端的轨道上面与轮对夹紧机构总成 c
中的承载轨道条 5 的上平面共面安装,实现平稳的将转向架推至试验台;所述的轨道压块 9 通过 T 型螺栓固定安装在回转平台 a 的 T 型槽中,压紧过渡轨道
8 。 Referring to Figure 9, the transition rail assembly d is mainly composed of a transition rail 8 and a rail clamp 9, which is a transition rail 8
It is a standard type of rail, which is fixedly mounted on the rotary platform a through a plurality of rail clamps 9 to provide conditions for the test vehicle to be smoothly guided to the test bench, and the track top and the wheelset clamping mechanism assembly at both ends of the transition rail 8 c
The upper plane of the carrier rail strip 5 is installed in a coplanar manner to smoothly push the bogie to the test rig; the rail clamp 9 is fixedly mounted in the T-slot of the slewing platform a by T-bolts, and the compression transition track
8 .
参阅图 10-15 ,所述的中心轴及横向定位总成 D 主要由中心轴 e 及定位装置 f 组成,所述的中心轴
e 通过其一端的小轴及螺栓实现与回转平台 a 的固连,即成为一体;所述的中心轴及横向定位总成 D 的另一端经由定位方墩 11 通过 T 型螺栓固定在基础平台
= 3 \* ROMAN III 上,提供回转平台 a 的垂向支撑力。 Referring to Figures 10-15, the central axis and lateral positioning assembly D is mainly composed of a central axis e and a positioning device f, the central axis
e is fixed by the small shaft and bolt at one end of the fixed platform a; the other end of the central shaft and the lateral positioning assembly D is fixed to the base platform by the T-bolt via the positioning square pier 11
= 3 \* On the ROMAN III, the vertical support of the swivel platform a is provided.
所述的中心轴 e 为阶梯状结构,其一端轴较细,作为与回转平台 a
安装时的定位轴,并通过螺栓将靠近细轴端的法兰盘与回转平台 a 固定连接;另一端较粗的轴端为试验台的回转轴,并与定位装置 f 中的滑块 14
共轴线安装,提供试验台作回转运动时的转动中心。 The central axis e is a stepped structure, and one end of the shaft is thin, as a rotary platform a
The positioning shaft is installed, and the flange near the thin shaft end is fixedly connected with the rotary platform a by bolts; the thicker shaft end at the other end is the rotary shaft of the test bench and the slider in the positioning device f 14
Coaxial mounting provides the center of rotation of the test rig for rotary motion.
所述的定位装置 f 主要由横向约束装置 10 及定位方墩 11 组成。 The positioning device f is mainly composed of a lateral restraining device 10 and a positioning square pier 11.
所述的横向约束装置 10 主要由横向定位挡板 12 、滑块止挡 13 及滑块 14
组成,所述的横向定位挡板 12 为两套,结构相同,与定位方墩 11 进行螺栓连接,提供滑块 14 的横向约束;所述的滑块止挡 13 通过螺栓固定在横向定位挡板
12 的两端,滑块 14 配合安装在两套横向定位挡板 12
组成的通道中,该结构在横向是固定约束的,纵向方向自由度放开,防止因电液伺服***的控制失调导致试验台的两纵向作动器向同一方向推拉将回转轴剪断;所述的滑块 14
为长方体结构,中间开有通孔,为回转平台 a 提供横向的约束力及回转运动的转动中心。 The lateral restraint device 10 is mainly composed of a lateral positioning baffle 12, a slider stop 13 and a slider 14
The two lateral positioning baffles 12 are of the same structure and are bolted to the positioning square pier 11 to provide lateral restraint of the slider 14; the slider stop 13 is fixed to the lateral positioning baffle by bolts.
At both ends of 12, the slider 14 is fitted to two sets of lateral positioning baffles 12
In the channel formed, the structure is fixedly constrained in the lateral direction, and the degree of freedom in the longitudinal direction is released to prevent the two longitudinal actuators of the test bench from being pushed and pulled in the same direction to cut the rotary shaft due to the control misalignment of the electro-hydraulic servo system; Slider 14
For the rectangular parallelepiped structure, a through hole is opened in the middle to provide a lateral binding force and a rotational center of the rotary motion for the rotary platform a.
参阅图 16
,为本发明所述的轨道车辆转向架回转特性测试***的工作原理示意图。首先建立试验台的坐标系,以列车的行驶运动方向为 X 轴,横向运动方向为 Y 轴,铅直方向为 Z
轴。图 16 中,试验平台的四个垂向作动器提供车辆上车时的垂向的支撑力;两个纵向作动器交错运动,相位差为 180
°,并对作动器采用位移控制,实现试验平台的回转运动,可以模拟不同的回转速度,实现空气弹簧失气、正常气压及过充状态下的回转试验。试验可在整车落成状态下完成转向架回转特性的测定,而且可实现转向架落成、模拟车重状态下的回转特性测量。 See Figure 16
The schematic diagram of the working principle of the rotary characteristic test system for the bogie of the railway vehicle according to the present invention. First, establish the coordinate system of the test bench, with the direction of travel of the train as the X axis, the direction of lateral movement as the Y axis, and the vertical direction as Z.
Axis. In Figure 16, the four vertical actuators of the test platform provide vertical support for the vehicle on board; two longitudinal actuators are staggered with a phase difference of 180
°, and the displacement control of the actuator to realize the rotary motion of the test platform, can simulate different rotation speeds, and realize the rotation test of the air spring out of gas, normal air pressure and overcharge state. The test can complete the measurement of the steering characteristics of the bogie in the state of completion of the whole vehicle, and can realize the measurement of the rotation characteristics of the bogie and the simulated vehicle weight.
在试验前,对本发明所述的轨道车辆转向架回转特性测试***本身的回转特性进行标定,以确定试验平台本身的回转特性与回转角的关系,即得到试验平台的回转特性曲线;测试过程中,通过数据采集***连续的记录两个纵向作动器在回转运动时作动器反馈的作用力及位移数值的大小,然后进行数据处理得到车辆及试验平台总体的回转特性曲线,与试验台的标定曲线做差便得到被试车辆或转向架的回转特性曲线,同时也可以确定出转向架回转阻力系数的大小,进而对车辆进行评估。
Before the test, the rotation characteristics of the rotary characteristic test system of the rail vehicle bogie according to the present invention are calibrated to determine the relationship between the rotation characteristics of the test platform itself and the swing angle, that is, the rotation characteristic curve of the test platform is obtained; during the test Through the data acquisition system, the force of the actuator feedback and the displacement value of the two longitudinal actuators during the rotary motion are continuously recorded, and then the data processing is performed to obtain the overall rotation characteristic curve of the vehicle and the test platform, and the test bench The calibration curve is used to obtain the rotation characteristic curve of the vehicle or the bogie, and the rotation resistance coefficient of the bogie can also be determined to evaluate the vehicle.
Claims (6)
- 一种轨道车辆转向架回转特性测试***,其特征在于:主要由试验平台、纵向作动器、垂向作动器、中心轴及横向定位总成组成,其特征在于,所述的试验平台为长方体结构,在纵向与两纵向作动器连接,依靠两纵向作动器的交错伸缩进行回转运动;四个垂向作动器支撑试验平台,其上端固定连接在试验平台的下平面上,下部固定在试验平台的基础上,四个垂向作动器提供试验平台的垂向支撑及在回转运动过程中提供试验平台运动的补偿;中心轴及横向定位总成固定在基础平台上,上部通过定位轴与试验平台连接,实现试验平台的横向定位。The utility model relates to a railway vehicle bogie rotation characteristic testing system, which is mainly composed of a test platform, a longitudinal actuator, a vertical actuator, a central axis and a lateral positioning assembly, wherein the test platform is The rectangular parallelepiped structure is connected to the two longitudinal actuators in the longitudinal direction, and is rotated by the staggered expansion and contraction of the two longitudinal actuators; the four vertical actuators support the test platform, the upper end of which is fixedly connected to the lower plane of the test platform, and the lower part Fixed on the test platform, four vertical actuators provide vertical support of the test platform and provide compensation for the motion of the test platform during the swing motion; the central axis and the lateral positioning assembly are fixed on the base platform, and the upper part passes The positioning shaft is connected with the test platform to realize the lateral positioning of the test platform.
- 根据权利要求 1 所述的轨道车辆转向架回转特性测试***,其特征在于:所述的试验平台主要由回转平台、轮对止挡总成、轮对夹紧机构总成及过渡轨道总成组成,所述的回转平台为长方体结构、焊接件,上表面加工有数个 T 型安装槽,为轮对止挡总成、轮对夹紧机构总成及过渡轨道总成提供安装平台,同时 T 型槽的开设适应了不同轴距、轨距的车辆的检测,且回转平台为整个试验台的承载机构,是车辆回转试验完成的重要组成;其下端面开有一中心孔及 8 个圆周排列的螺纹孔,用于与中心轴及横向定位总成中心轴的安装;According to claim 1 The rail vehicle bogie rotation characteristic testing system is characterized in that: the test platform is mainly composed of a rotary platform, a wheelset stop assembly, a wheelset clamping mechanism assembly and a transition rail assembly, The slewing platform is a rectangular parallelepiped structure and welded parts, and several upper surfaces are processed. T-mounting groove provides mounting platform for wheelset stop assembly, wheelset clamping mechanism assembly and transition rail assembly, and T The opening of the groove is adapted to the detection of vehicles with different wheelbases and gauges, and the slewing platform is the bearing mechanism of the entire test rig, which is an important component of the completion of the vehicle slewing test; the lower end face has a central hole and 8 Threaded holes arranged circumferentially for mounting with the central axis and the central axis of the lateral positioning assembly;所述的轮对止挡总成为四套,结构相同,且其安装位置关于回转平台的中心对称,并通过 T 形螺栓固定在回转平台上的 T 形安装槽中,试验时实现轮对的止挡作用,二者均由轮挡、轮轨及轮挡垫块组成,所述的轮挡的下端支座固定在轮挡垫块上,上端挡块的圆角部分顶在轮对的踏面上,提供轮对纵向的止推力;所述的轮轨固定在轮挡垫块表面的凹槽中,以提供试验时装载转向架的轨道;所述的轮挡垫块为空心的、断面呈'工'字形的结构,固定在回转平台上的 T 形安装槽中,回转平台上所设置的四个轮挡机构实现转向架的纵向定位;The wheelset stops are always four sets, the structure is the same, and the installation position is symmetric about the center of the rotary platform, and is fixed on the rotary platform by T-bolts. In the shape of the installation groove, the stop action of the wheel pair is realized during the test, both of which are composed of the wheel block, the wheel track and the wheel block, and the lower end support of the wheel block is fixed on the wheel block, the upper end block The rounded portion of the block is placed on the tread of the wheel pair to provide a longitudinal thrust of the wheel pair; the wheel track is fixed in a groove in the surface of the wheel block to provide a track for loading the bogie during testing; The wheel block is hollow and has a section of 'work' shape, which is fixed on the rotary platform. In the T-shaped mounting groove, the four wheel stop mechanisms provided on the rotary platform realize the longitudinal positioning of the bogie;所述的轮对夹紧机构总成为四套,结构相同,其安装位置关于回转平台的中心对称,并固定在回转平台上表面设置的安装螺纹孔中,同时可调整轮对夹紧机构的固定位置以适应不同轮距的轮对,二者均由' L '形斜铁、承载轨道条及轮对夹紧支座组成,所述的轮对夹紧支座固定在回转平台的 T 型槽中,承载轨道条与轮对夹紧支座通过螺栓连接,被测车辆停在承载轨道条上后,将' L '形斜铁压入轮对外侧面与轮对夹紧支座之间,对轮对实现横向的定位夹紧,同时三者之间的摩擦力作用对轮对纵向及垂向产生一定的约束力;The wheel pair clamping mechanism is always four sets, the structure is the same, the installation position is symmetric about the center of the rotary platform, and is fixed in the installation threaded hole provided on the upper surface of the rotary platform, and the fixing of the wheel pair clamping mechanism can be adjusted at the same time. Position to accommodate wheel sets of different track, both by ' L 'shaped inclined iron, carrying track strip and wheel set clamping support, said wheel set clamping support fixed on the rotary platform T In the groove, the bearing rail strip and the wheelset clamping bearing are connected by bolts, and after the vehicle to be tested is stopped on the carrying rail strip, the 'L' 'The oblique iron is pressed into the wheel between the outer side and the wheel pair clamping support, and the wheel pair realizes the horizontal positioning and clamping, and the friction between the three forces exerts a certain binding force on the longitudinal and vertical direction of the wheel pair. ;所述的过渡轨道总成主要由过渡轨道及轨道压块组成,所述的过渡轨道为标准钢轨,通过数块轨道压块固定安装在回转平台上,为被试车辆顺利引导至试验台提供了条件,且过渡轨道的两端的轨道上面与轮对夹紧机构总成中的承载轨道条的上平面共面安装,实现平稳的将转向架推至试验台;所述的轨道压块固定安装在回转平台的 T 型槽中,压紧过渡轨道。The transition track assembly is mainly composed of a transition rail and a rail press block. The transition rail is a standard rail, and is fixedly mounted on the swing platform by a plurality of rail clamps, thereby providing a smooth guiding of the tested vehicle to the test bench. Conditions, and the upper ends of the transition rails are coplanarly mounted on the upper surface of the load rail strips in the wheelset clamping mechanism assembly, so that the bogie is smoothly pushed to the test bench; the rail clamps are fixedly mounted on the rails Slewing platform In the T-slot, the transition rail is compressed.
- 根据权利要求 1 所述的轨道车辆转向架回转特性测试***,其特征在于:所述的纵向作动器、垂向作动器为该试验台的电液伺服***,所述的两个纵向作动器,每个作动器的下球铰点通过紧固螺栓固定在试验平台基础上,上球铰点通过螺栓与回转平台纵向端面连接,两纵向作动器为回转特性试验平台提供了纵向的支撑,同时两个纵向作动器交错伸缩运动实现了试验平台绕回转中心的回转运动,其回转角为± 8 °;四个垂向作动器将试验平台撑起,其上端球铰固定连接在试验平台的下平面上,下部球铰固定在试验平台的基础上,四个垂向作动器提供试验平台的垂向支撑及在回转运动过程中提供试验平台运动的补偿。According to claim 1 The rail vehicle bogie rotation characteristic testing system is characterized in that: the longitudinal actuator and the vertical actuator are electro-hydraulic servo systems of the test bench, and the two longitudinal actuators each The lower ball joint points of the actuators are fixed on the test platform foundation by fastening bolts, and the upper ball joint points are connected with the longitudinal end faces of the rotary platform through bolts, and the two longitudinal actuators provide longitudinal support for the rotary characteristic test platform. The two longitudinal actuators are staggered and telescopic to realize the rotary motion of the test platform around the center of rotation, and the angle of rotation is ± 8 °; four vertical actuators support the test platform, the upper end ball joint is fixedly connected to the lower plane of the test platform, the lower ball joint is fixed on the test platform, and the four vertical actuators provide the test platform. Vertical support and compensation for the motion of the test platform during the swing motion.
- 根据权利要求 1 所述的轨道车辆转向架回转特性测试***,其特征在于:所述的中心轴及横向定位总成主要由中心轴及定位装置组成,所述的中心轴通过其一端的小轴及螺栓实现与回转平台的固连,即成为一体;所述的中心轴及横向定位总成的另一端经由定位方墩通过 T 型螺栓固定在基础平台上,提供回转平台的垂向支撑力。According to claim 1 The rail vehicle bogie rotation characteristic testing system is characterized in that: the central shaft and the lateral positioning assembly are mainly composed of a central shaft and a positioning device, and the central shaft is realized by a small shaft and a bolt at one end thereof. The solidification of the slewing platform is integrated; the other end of the central shaft and the lateral positioning assembly passes through the positioning square pier The T-bolt is attached to the base platform to provide vertical support for the swing platform.
- 根据权利要求 4 所述的轨道车辆转向架回转特性测试***,其特征在于:所述的中心轴为阶梯状结构,其一端轴为细轴,作为与回转平台安装时的定位轴,并通过螺栓将靠近细轴端的法兰盘与回转平台固定连接;另一端粗轴的轴端为试验平台的回转轴,并与定位装置中的滑块共轴线安装,提供试验平台作回转运动时的转动中心。According to claim 4 The rail vehicle bogie rotation characteristic test system is characterized in that: the central shaft is a stepped structure, and one end shaft is a thin shaft, which is used as a positioning shaft when mounted on the rotary platform, and is close to the thin shaft by bolts. The flange of the end is fixedly connected with the rotary platform; the axial end of the thick shaft of the other end is the rotary shaft of the test platform, and is coaxially mounted with the slider in the positioning device, and provides the rotation center of the test platform for the rotary motion.
- 所述的定位装置主要由横向约束装置及定位方墩组成,所述的横向约束装置主要由横向定位挡板、滑块止挡及滑块组成,所述的横向定位挡板为两套,结构相同,与定位方墩进行螺栓连接,提供滑块的横向约束;所述的滑块止挡固定在横向定位挡板的两端,滑块配合安装在两套横向定位挡板组成的通道中,该结构在横向是固定约束的,纵向方向自由度放开,防止因电液伺服***的控制失调导致试验平台的两纵向作动器向同一方向推拉将回转轴剪断;所述的滑块为长方体结构,中间开有通孔,为回转平台提供横向的约束力及回转运动的转动中心。The positioning device is mainly composed of a lateral restraining device and a positioning square pier. The lateral restraining device is mainly composed of a lateral positioning baffle, a slider stop and a slider. The lateral positioning baffle is two sets, and the structure is Similarly, bolting with the positioning square pier provides lateral constraint of the slider; the slider stop is fixed at both ends of the lateral positioning baffle, and the slider is matched and installed in the channel formed by the two sets of lateral positioning baffles, The structure is fixedly constrained in the lateral direction, and the degree of freedom in the longitudinal direction is released to prevent the two longitudinal actuators of the test platform from being pulled in the same direction to cut the rotary shaft due to the control misalignment of the electro-hydraulic servo system; the slider is a rectangular parallelepiped The structure has a through hole in the middle to provide a lateral binding force and a rotation center of the rotary motion for the rotary platform.
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