CN109029811B - Car coupler force test method and calibration tool - Google Patents

Car coupler force test method and calibration tool Download PDF

Info

Publication number
CN109029811B
CN109029811B CN201810783320.7A CN201810783320A CN109029811B CN 109029811 B CN109029811 B CN 109029811B CN 201810783320 A CN201810783320 A CN 201810783320A CN 109029811 B CN109029811 B CN 109029811B
Authority
CN
China
Prior art keywords
force
coupler
transition sleeve
test
force sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810783320.7A
Other languages
Chinese (zh)
Other versions
CN109029811A (en
Inventor
魏晓斌
杨奇科
伍道乐
雷新红
李继贤
熊晨彩
陈兆玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Zhuzhou Locomotive Co Ltd
Original Assignee
CRRC Zhuzhou Locomotive Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRRC Zhuzhou Locomotive Co Ltd filed Critical CRRC Zhuzhou Locomotive Co Ltd
Priority to CN201810783320.7A priority Critical patent/CN109029811B/en
Publication of CN109029811A publication Critical patent/CN109029811A/en
Application granted granted Critical
Publication of CN109029811B publication Critical patent/CN109029811B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061Force sensors associated with industrial machines or actuators
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

Abstract

The invention discloses a coupler force test calibration tool which comprises a platform, wherein a force application part for providing tension and pressure and a counter-force part opposite to the force application part are fixed on the platform, the force application part acts on a force sensor, and a coupler transition sleeve to be calibrated is connected between the force sensor and the counter-force part so that the acting force of the force application part is applied to the coupler transition sleeve through the force sensor. The invention also discloses a car coupler force test method, the car coupler transition sleeve is arranged on the car coupler force test calibration tool, and a strain gauge is arranged on the surface of the car coupler transition sleeve; calibrating and verifying, wherein the force application component provides tension and pressure respectively, and the output results of the force sensor and the output results of the strain gauge are compared respectively; and after the verification is qualified, carrying out online test. The coupler force test calibration tool provides a reliability foundation for coupler force test, and the test method can realize on-line test, know the stress condition of the coupler in a whole section and provide a basis for coupler optimization design, service life evaluation and the like.

Description

Car coupler force test method and calibration tool
Technical Field
The invention relates to the technical field of rail transit vehicles, in particular to a car coupler force test method and a car coupler force test calibration tool.
Background
The rapid development of domestic rail transit has more and more vehicles of subways and motor train units. The coupler is an important component of a rail transit vehicle, and refers to a hook at two ends of a railway wagon or a locomotive, and has the functions of connection, traction and buffering. The vehicle component is used for realizing the coupling between the locomotive and the vehicle or between the vehicle and the vehicle, transmitting the traction force and the impact force and keeping a certain distance between the vehicles.
The coupler is used as a force transmission component between vehicles, and the reliability of the coupler relates to the running safety of the vehicles. Different lines, loads, vehicle speeds and the like have different influences on the car coupler. The performance of the car coupler is evaluated, a model selection basis is provided for design, and the situation of the stress of the car coupler in actual application is known to be very important. However, there is currently no effective means to perform coupler force testing.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a coupler force testing and calibrating tool, which can effectively solve the problem that the coupler force is difficult to test due to the structural design of the coupler force testing and calibrating tool, and a second object of the present invention is to provide a coupler force testing method.
In order to achieve the first object, the invention provides the following technical scheme:
the utility model provides a coupling force test calibration frock, includes the platform, be fixed with on the platform be used for providing the application of force part of pulling force and pressure and with the counter-force part that the application of force part is relative, application of force part acts on force transducer, force transducer with be used for connecting the coupling transition cover of waiting to demarcate between the counter-force part, so that force transducer's effort passes through force transducer exerts in coupling transition cover.
Preferably, in the coupler force test calibration tool, the force application component comprises a telescopic cylinder, and the movable end of the telescopic cylinder acts on the force sensor.
Preferably, in the coupler force test calibration tool, the force application component further comprises a loading frame, the loading frame is fixedly connected with the force sensor, the telescopic cylinder is arranged in the middle of the loading frame, the two ends of the telescopic cylinder are respectively provided with a piston rod and respectively act on the loading frame, and the telescopic direction of the telescopic cylinder is collinear with the force sensor.
Preferably, in the coupler force test calibration tool, the telescopic cylinder is detachably and fixedly connected with the platform.
Preferably, in the coupler force test calibration tool, the reaction member includes a reaction frame fixedly connected to the platform, and a base is fixed to one end of the reaction frame, which faces the force application member.
Preferably, in the coupler force testing and calibrating tool, two ends of the coupler transition sleeve are respectively and fixedly connected with the connecting discs through snap rings with the structures consistent with those of the loading parts, and the connecting discs at two ends of the coupler transition sleeve are respectively and fixedly connected with the force sensor and the base.
Preferably, in the coupler force test calibration tool, the reaction frame is detachably and fixedly connected with the base, and the reaction frame is detachably and fixedly connected with the platform.
The coupler force test calibration tool provided by the invention comprises a platform, a force application part, a counter-force part and a force sensor. The force application component is used for providing tension and pressure, the force application component acts on the force sensor, the force sensor and the counter-force component are used for being connected with a coupler transition sleeve to be calibrated, and then the acting force of the force application component is applied to the coupler transition sleeve through the force sensor.
By applying the coupler force test calibration tool provided by the invention, the coupler transition sleeve which is easy to disassemble and assemble is selected as a force measuring part, and the force measuring part is arranged between the force sensor and the counter-force part for calibration. The force application component applies pulling force or pressure to the coupler transition sleeve, and the magnitude of the loaded pulling force or pressure is fed back through the force sensor, so that the force application component is compared with the output of the strain gauge stuck on the coupler transition sleeve to finish calibration, and the subsequent detection of the coupler transition sleeve through the strain gauge to reflect the reliability of coupler force testing is ensured. In conclusion, the coupler transition sleeve is calibrated through the calibration tool, and a reliability foundation is provided for coupler force testing.
In order to achieve the second object, the present invention further provides the following technical solutions:
a car coupler force test method is characterized in that a car coupler transition sleeve is arranged on any car coupler force test calibration tool, and a strain gauge is arranged on the surface of the car coupler transition sleeve;
calibrating and verifying, wherein the force application component provides tension and pressure respectively, and the output results of the force sensor and the strain gauge are compared respectively;
and after the verification is qualified, carrying out online test.
By applying the car coupler force test method provided by the invention, the on-line test is carried out by sticking the strain gauge on the car coupler transition sleeve, so that the installation state of the car coupler is not damaged, and the car coupler can be conveniently disassembled and used for the test of subsequent vehicles after the test of a train is finished. The method adopts the coupler force test calibration tool for calibration and verification, so that the reliability of the method is ensured. The on-line test is realized, the stress condition of the car coupler at the whole road section can be known, and the basis is provided for car coupler model selection, optimal design and car coupler service life evaluation in a more targeted manner.
Preferably, in the car coupler force test method, the arranging a strain gauge on the surface of the car coupler transition sleeve specifically includes:
and arranging strain gauges on the surface of the coupler transition sleeve to form a full bridge.
Preferably, in the car coupler force test method, before the strain gauge is arranged on the surface of the car coupler transition sleeve, the method further includes:
and grinding the surface of the coupler transition sleeve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a coupler force test calibration fixture according to a specific embodiment of the present invention;
fig. 2 is a schematic top view of the structure of fig. 1.
The drawings are numbered as follows:
1. the device comprises a platform, 2, a reaction frame, 3, a base, 4, a connecting disc, 5, a coupler transition sleeve, 6, a clamping ring, 7, a force sensor, 8, a sensor connecting stud, 9, a loading frame, 10 and a telescopic cylinder.
Detailed Description
The embodiment of the invention discloses a car coupler force test method and a car coupler force test calibration tool, which are used for effectively testing car coupler force.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of a coupler force testing calibration fixture according to an embodiment of the present invention, and fig. 2 is a schematic top-view structural diagram of fig. 1.
In a specific embodiment, the coupler force test calibration tool provided by the invention comprises a platform 1, a force application part, a counter force part and a force sensor 7.
The platform 1 is used to support the force application component and the reaction component, and may specifically adopt a cast iron platform 1 or other structures with mechanical properties meeting requirements, which are not specifically limited herein.
And the force application part and the counter force part are oppositely fixed on the platform 1, the force application part is used for providing tension and pressure, and the counter force part is used for supporting the coupler transition sleeve 5. The two are oppositely arranged, namely oppositely arranged along the direction of the tensile force or the compressive force.
The force application component acts on the force sensor 7, the coupler transition sleeve 5 to be calibrated is connected between the force sensor 7 and the counter-force component, and then the acting force of the force application component is applied to the coupler transition sleeve 5 through the force sensor 7. During calibration, the coupler transition sleeve 5 is arranged between the force sensor 7 and the counter-force part, the acting force of pulling force or pressure applied by the force application part acts on one end of the coupler transition sleeve 5 through the force sensor 7, the other end of the coupler transition sleeve 5 is supported by the counter-force part to prevent the coupler transition sleeve from moving along the acting force direction, and displacement of the coupler transition sleeve is limited to realize loading. And the force sensor 7 can detect the magnitude of the urging force applied by the urging member.
By applying the coupler force test calibration tool provided by the invention, the coupler transition sleeve 5 which is easy to disassemble and assemble is selected as a force measuring part and is arranged between the force sensor 7 and the counter-force part for calibration. The force application part applies pulling force or pressure to the coupler transition sleeve 5, and the magnitude of the loaded pulling force or pressure is fed back through the force sensor 7, so that the force application part is compared with the output of the strain gauge stuck on the coupler transition sleeve 5, calibration is completed, and the reliability of coupler force testing is reflected by detecting the coupler transition sleeve 5 through the strain gauge subsequently. In conclusion, the coupler transition sleeve 5 is calibrated through the calibration tool, and a reliability foundation is provided for coupler force testing.
Specifically, the force application component includes a telescopic cylinder 10, and the movable end of the telescopic cylinder 10 acts on the force sensor 7. The reaction member is provided on the movable end side of the telescopic cylinder 10 in the telescopic direction of the telescopic cylinder 10. That is, a tension or a pressure is applied to the force sensor 7 through the telescopic cylinder 10, the tension or the pressure is transmitted to the coupler transition sleeve 5 through the force sensor 7, and the magnitude of the tension or the pressure applied by the telescopic cylinder 10 is detected through the force sensor 7. The telescopic cylinder 10 may be a hydraulic cylinder, such as a hydraulic cylinder. An air cylinder or the like may be used as necessary. The force application component adopts a telescopic cylinder 10, has simple and reliable structure and is convenient for applying tension and pressure.
Further, the force application component further comprises a loading frame 9, the loading frame 9 is fixedly connected with the force sensor 7, a telescopic cylinder 10 is arranged in the middle of the loading frame 9, piston rods are arranged at two ends of the telescopic cylinder 10 and respectively act on the loading frame 9, and the telescopic direction of the telescopic cylinder 10 is collinear with the force sensor 7. That is, a telescopic cylinder 10 having piston rods at both ends is disposed in the loading frame 9, and then the piston rods at both ends of the telescopic cylinder 10 can be extended or retracted respectively to push the loading frame 9. As shown in fig. 1, the piston rods at the left and right ends of the telescopic cylinder 10 can respectively act on the left and right inner walls of the loading frame 9 to apply a pulling force or a pressing force to the loading frame 9. Since the loading frame 9 is connected to the force sensor 7, the tensile or compressive force is transmitted to the force sensor 7 to apply a force to the coupler transition sleeve 5. The specific loading frame 9 may be a rectangular frame, and is sleeved outside the telescopic cylinder 10 and is matched with the piston rod of the telescopic cylinder 10, for example, connected with the piston rod in an inserting manner or the like. The force sensor 7 and the loading frame 9 can be fixedly connected through a sensor connecting stud 8.
Furthermore, the telescopic cylinder 10 is detachably and fixedly connected with the platform 1. In particular, the connection can be realized by bolts or other conventional detachable fixed connection methods. And a detachable fixed connection mode is adopted, so that the telescopic cylinder 10 can be conveniently maintained or replaced when in failure. Preferably, the telescopic cylinder 10 is adjustable in its attachment position on the platform 1 in the telescopic direction. That is, the connecting position of the telescopic cylinder 10 on the platform 1 in the left-right direction is adjustable as shown in fig. 1, specifically, a plurality of connecting portions, such as bolt holes, may be provided on the platform 1, and then the telescopic cylinder 10 may be detachably and fixedly connected with the platform 1 through different bolt holes. Due to the arrangement, the position of the telescopic cylinder 10 can be conveniently adjusted according to the length of the coupler transition sleeve 5, so that coupler transition sleeves 5 of different specifications can be conveniently arranged between the force sensor 7 and the reaction force component for calibration.
In the above embodiments, the reaction member includes the reaction frame 2 fixedly connected to the platform 1, and the base 3 is fixed to one end of the reaction frame 2 facing the force applying member. Preferably, the counterforce component is detachably and fixedly connected with the platform 1, specifically, by a bolt, or by other conventional detachable and fixedly connecting means. Adopt detachable fixed connection mode, be convenient for maintain or change it when reaction frame 2 trouble. Preferably, the connecting position of the counterforce frame 2 on the platform 1 along the acting force direction of the force application part is adjustable. That is, the connecting position of the reaction frame 2 on the platform 1 in the left-right direction is adjustable as shown in fig. 1, specifically, a plurality of connecting parts, such as bolt holes, can be arranged on the platform 1, and then the reaction frame 2 can be detachably and fixedly connected with the platform 1 through different bolt holes. The arrangement is convenient for adjusting the position of the reaction frame 2 according to the length of the coupler transition sleeve 5. The base 3 is fixed at one end of the reaction frame 2 facing the force application part, namely the left end as shown in fig. 1, and the coupler transition sleeve 5 is convenient to fix through the arrangement of the base 3. The specific structure of the base 3 may be correspondingly arranged according to the structure of one end of the coupler transition sleeve 5, so as to fix the coupler transition sleeve, and is not limited in detail here.
The reaction frame 2 may specifically include a supporting plate, reinforcing rib plates are fixedly connected to both sides of the supporting plate along the acting force, and bottom ends of the reinforcing rib plates are fixedly connected to the platform 1, respectively.
Furthermore, two ends of the coupler transition sleeve 5 are fixedly connected with the connecting discs 4 through snap rings 6 which are consistent with the structures of the loading parts, and the connecting discs 4 at two ends of the coupler transition sleeve 5 are fixedly connected with the force sensor 7 and the base 3 respectively. Connecting discs 4 are arranged at two ends of the coupler transition sleeve 5 respectively, the shapes of the connecting discs 4 are correspondingly arranged according to the shapes of two ends of the coupler transition sleeve 5, and two ends of the coupler transition sleeve 5 are fixed on the connecting discs 4 through snap rings 6 respectively. The connecting discs 4 at the two ends are further fixedly connected with the force sensor 7 and the base 3 respectively. The shapes of the snap ring 6 and the connecting disc 4 are consistent with the structure of the loading part. Through the arrangement of the snap ring 6 and the connecting disc 4, the coupler transition sleeve 5 is convenient to fixedly mount.
Furthermore, the reaction frame 2 and the base 3 may be detachably and fixedly connected, specifically by bolts, or may be connected by other conventional detachable and fixed connection methods. Adopt detachable fixed connection mode, be convenient for maintain or change base 3 when the trouble to it. Preferably, the connection position of the base 3 in the height direction on the reaction frame 2 is adjustable. Specifically, a plurality of connecting portions, such as bolt holes, can be arranged on the reaction frame 2, and the base 3 can be selectively fixedly connected with the reaction frame 2 in a detachable manner through different bolt holes. The position of the base 3 can be conveniently adjusted according to the height of the coupler transition sleeve 5.
The invention also provides a car coupler force test method.
In a specific embodiment, the coupler force test method provided by the invention further comprises the following steps:
s1: installing the coupler transition sleeve 5 on any coupler force test calibration tool, and arranging a strain gauge on the surface of the coupler transition sleeve 5;
for specific installation positions, reference is made to the embodiment of the coupler force test calibration tool, and details are not repeated here. The surface of the coupler transition sleeve 5 is provided with a strain gauge, specifically, the surface of the coupler transition sleeve 5 is firstly polished, and then the surface of the coupler transition sleeve 5 is provided with the strain gauge. The strain gage is typically a stick-on strain gage.
S2: calibrating and verifying, wherein the force application component provides tension and pressure respectively, and the output results of the force sensor 7 and the output results of the strain gauge are compared respectively;
the coupler transition sleeve 5 is sequentially applied with pulling force and pressure through a force application part, the magnitude of input load is detected through a force sensor 7, strain is output through a strain gauge reaction and converted into the magnitude of stress, the relation between input and output is found by comparing the output result of the force sensor 7 with the output result of the strain gauge, various performance indexes are judged, and calibration and verification are completed.
S3: and after the verification is qualified, carrying out online test.
Specifically, when the error between the output result and the input result is within the operation error range, the verification is qualified. The strain gauge is arranged on the coupler transition sleeve 5 of the vehicle by adopting the strain gauge arrangement mode, the coupler transition sleeve 5 pasted with the strain gauge is arranged on the vehicle, and online test is carried out in the running process of the vehicle.
By applying the car coupler force test method provided by the invention, the on-line test is carried out by sticking the strain gauge on the car coupler transition sleeve 5, the installation state of the car coupler is not damaged, and the car coupler can be conveniently disassembled and used for the test of subsequent vehicles after the test of a train is finished. The method adopts the coupler force test calibration tool for calibration and verification, so that the reliability of the method is ensured. The on-line test is realized, the stress condition of the car coupler at the whole road section can be known, and the basis is provided for car coupler model selection, optimal design and car coupler service life evaluation in a more targeted manner.
Specifically, arranging a strain gauge on the surface of the coupler transition sleeve 5 specifically comprises:
and strain gauges are arranged on the surface of the coupler transition sleeve 5 to form a full bridge. The strain gauge is arranged at a proper position to form a full bridge, so that the influence on the pull pressure test caused by the bending of the car coupler can be effectively eliminated. The specific step positions may be set according to the shape of the coupler, and are not specifically limited herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a frock is markd in coupling power test, its characterized in that, includes the platform, be fixed with on the platform be used for providing the application of force part of pulling force and pressure and with the counter-force part that the application of force part is relative, application of force part acts on force sensor, force sensor with be used for connecting the coupling transition cover of waiting to mark between the counter-force part, so that force sensor's effort passes through force sensor apply in coupling transition cover, counter-force part include with platform fixed connection's reaction frame, turn to on the reaction frame the one end of application of force part is fixed with the base, coupling transition cover's both ends are respectively through with the unanimous snap ring of loading spare structure and connection pad fixed connection, be located coupling transition cover both ends the connection pad respectively with force sensor with base fixed connection.
2. The coupler force test calibration fixture of claim 1, wherein the force application component comprises a telescoping cylinder, and a movable end of the telescoping cylinder acts on the force sensor.
3. The coupler force test calibration tool according to claim 2, wherein the force application component further comprises a loading frame, the loading frame is fixedly connected with the force sensor, the telescopic cylinder is arranged in the middle of the loading frame, piston rods are arranged at two ends of the telescopic cylinder and respectively act on the loading frame, and the telescopic direction of the telescopic cylinder is collinear with the force sensor.
4. The coupler force test calibration fixture of claim 3, wherein the telescoping cylinder is detachably and fixedly connected with the platform.
5. The coupler force test calibration fixture according to any one of claims 1-4, wherein the reaction frame is detachably and fixedly connected with the base, and the reaction frame is detachably and fixedly connected with the platform.
6. A car coupler force test method is characterized by comprising the following steps:
installing a coupler transition sleeve on a coupler force test calibration tool according to any one of claims 1 to 5, and arranging a strain gauge on the surface of the coupler transition sleeve;
calibrating and verifying, wherein the force application component provides tension and pressure respectively, and the output results of the force sensor and the strain gauge are compared respectively;
and after the verification is qualified, carrying out online test.
7. The coupler force test method according to claim 6, wherein the arranging of strain gauges on the surface of the coupler transition sleeve specifically comprises:
and arranging strain gauges on the surface of the coupler transition sleeve to form a full bridge.
8. The coupler force test method of claim 6, wherein before arranging a strain gage on the surface of the coupler transition sleeve, the method further comprises:
and grinding the surface of the coupler transition sleeve.
CN201810783320.7A 2018-07-17 2018-07-17 Car coupler force test method and calibration tool Active CN109029811B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810783320.7A CN109029811B (en) 2018-07-17 2018-07-17 Car coupler force test method and calibration tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810783320.7A CN109029811B (en) 2018-07-17 2018-07-17 Car coupler force test method and calibration tool

Publications (2)

Publication Number Publication Date
CN109029811A CN109029811A (en) 2018-12-18
CN109029811B true CN109029811B (en) 2021-02-05

Family

ID=64642946

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810783320.7A Active CN109029811B (en) 2018-07-17 2018-07-17 Car coupler force test method and calibration tool

Country Status (1)

Country Link
CN (1) CN109029811B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109738142A (en) * 2019-01-02 2019-05-10 中车青岛四方机车车辆股份有限公司 Vehicle body of railway vehicle pilot test of static strength device
CN112179764A (en) * 2019-07-05 2021-01-05 中车长春轨道客车股份有限公司 Loading device for coupler tension-compression integrated test
CN110411653A (en) * 2019-07-16 2019-11-05 西南交通大学 A kind of railway vehicle coupler power static demarcating method
CN110686880B (en) * 2019-10-25 2020-11-20 杭州承凰科技有限公司 Towing hook strength detection equipment
CN110793603B (en) * 2019-10-31 2021-03-19 中南大学 Combined bridge type coupler multi-element multi-directional load measuring system and decoupling method
CN111896250A (en) * 2020-07-24 2020-11-06 东风商用车有限公司 Flexible shaft ball joint with pull pressure sensor and variable speed control test system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104458093A (en) * 2014-12-17 2015-03-25 南车株洲电力机车有限公司 Method and device for testing running resistance of electric locomotive
CN104483059A (en) * 2014-12-12 2015-04-01 南车株洲电力机车有限公司 Parking braking test device
CN105510135A (en) * 2016-01-27 2016-04-20 江苏电力装备有限公司 Constant-force hanging bracket box body tension testing device and method
CN106918289A (en) * 2017-04-21 2017-07-04 吉林大学 A kind of EMUs coupler motion scope and coupler force integrated measurer
CN207036413U (en) * 2017-08-16 2018-02-23 株洲壹星科技股份有限公司 A kind of dual drive hitch even hangs detection means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104483059A (en) * 2014-12-12 2015-04-01 南车株洲电力机车有限公司 Parking braking test device
CN104458093A (en) * 2014-12-17 2015-03-25 南车株洲电力机车有限公司 Method and device for testing running resistance of electric locomotive
CN105510135A (en) * 2016-01-27 2016-04-20 江苏电力装备有限公司 Constant-force hanging bracket box body tension testing device and method
CN106918289A (en) * 2017-04-21 2017-07-04 吉林大学 A kind of EMUs coupler motion scope and coupler force integrated measurer
CN207036413U (en) * 2017-08-16 2018-02-23 株洲壹星科技股份有限公司 A kind of dual drive hitch even hangs detection means

Also Published As

Publication number Publication date
CN109029811A (en) 2018-12-18

Similar Documents

Publication Publication Date Title
CN109029811B (en) Car coupler force test method and calibration tool
Chang et al. Simulation of wheel impact test using finite element method
KR101154489B1 (en) Apparatus for loading test of railroad bridge, method for calculating load carrying capacity of railroad bridge and method for measuring drooping of railroad bridge
WO2011057496A1 (en) Vehicle-body integrated test bench
CN102393309A (en) Tyre coupling stiffness testing machine
CN204903146U (en) Zero component test set of many performances of safety belt
KR20030084870A (en) Load testing system of bogie frame for rolling stock
CN104422592A (en) Vehicle clutch system performance test-bench device and test system comprising same
CN107843370B (en) Device and method for testing running resistance of rail train
CN100348962C (en) Apparatus of measuring tyre grounding pressure and internal stress and strain of road surface structure under tyre action
CN208537186U (en) A kind of tooling measuring braking system performance for simulating whole vehicle state
CN105043740A (en) Safety belt multiple-performance component test device and test method
CN205352713U (en) Wheel force transfer function testing arrangement under whole car state of simulation
CN106918289A (en) A kind of EMUs coupler motion scope and coupler force integrated measurer
JP4814121B2 (en) Measuring method of wheel load or lateral pressure
EP2803965B1 (en) Improved testbench for land vehicles
CN208254818U (en) Half vehicle floating installation of parallel four-bar double-slider based on load feedback
CN109716096B (en) Tire rolling resistance evaluation device
CN102419231B (en) Method and device for testing static self-resilience of coupler buffer device
CN211504520U (en) Calibrating device for flat plate type brake inspection platform
CN203772644U (en) Connecting rod rigidity testing device
KR100211563B1 (en) Test jig for automotive towing eye
CN101706374B (en) Static detection device of full-trailer impact braking system
CN212296341U (en) Multifunctional load checking platform
CN109073509B (en) Support frame for brake test platform

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant