CN109799102B - Train disc type caliper brake module for test - Google Patents
Train disc type caliper brake module for test Download PDFInfo
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- CN109799102B CN109799102B CN201910198016.0A CN201910198016A CN109799102B CN 109799102 B CN109799102 B CN 109799102B CN 201910198016 A CN201910198016 A CN 201910198016A CN 109799102 B CN109799102 B CN 109799102B
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- 238000011056 performance test Methods 0.000 abstract description 7
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Abstract
The application belongs to the technical field of friction braking, and particularly relates to a train disc type caliper braking module for test. Aiming at the problem that the friction radius is inconvenient to change in the existing brake performance test bed, the technical scheme of the application is as follows: the device comprises a brake module loading seat used for being connected with a test bed, wherein a brake disc is connected to the brake module loading seat through a bearing, a train friction radius adjusting device is arranged on the brake module loading seat, the train friction radius adjusting device comprises a friction radius adjusting device supporting plate, a guide rail is arranged on the friction radius adjusting device supporting plate, a sliding groove is arranged on the guide rail, a train disc type caliper brake module mounting seat is connected to the sliding groove, a train disc type caliper brake module is connected to the train disc type caliper brake module mounting seat, and a screw rod is further arranged on the friction radius adjusting device supporting plate. The application is used for testing the braking performance of different friction radiuses.
Description
Technical Field
The application belongs to the technical field of friction braking, and particularly relates to a train disc type caliper braking module for test.
Background
The brake performance test bench is used as key test equipment in the field of friction braking of a carrier, and is mainly used for researching vibration noise of a brake disc/disc contact interface, abrasion rule, friction heat distribution and the like in the braking process of the carrier, and providing accurate test data support for the braking performance optimization of various brakes. Friction braking is applicable in both service braking and emergency braking, and is the final guarantee for safe stopping. With the rapid development of national economy, the vehicles are developed to the depth of high speed, especially in the field of electrified trains, and the highest operation speed is continuously broken through. On the other hand, the requirements of the national and social aspects on the fields of operation safety and environmental protection are higher and higher, and how to effectively control noise and abrasive dust generated by friction braking in the operation process of a high-speed train becomes a great difficulty for researchers and industrial enterprises in the industry. Therefore, before the actual engineering application of various vehicle brakes, it is necessary to study the relationship between the shape or arrangement of the friction blocks of the brake pad and the factors such as self-excited vibration of the friction interface, stress distribution of the friction interface, friction heat and its distribution, friction force, brake disc/friction blocks, etc. in a test mode.
The existing brake performance test bed generally has the functions of load simulation, driving motor speed regulation, brake simulation, vibration and noise and brake force signal acquisition and analysis, brake disc/friction block heat distribution acquisition and the like. The basic principle of the brake performance test bed is that an inertia wheel is adopted to simulate the brake quality of a carrying tool, an inertia shaft system is driven to rotate by a motor, braking force is applied to a test piece in a pneumatic or hydraulic mode after the preset rotating speed of a brake disc is reached, so that the simulation of the conversion process of kinetic energy and brake energy of the carrying tool is realized, and finally, various performance parameters related to braking are collected and analyzed.
In the existing brake performance test bed, the contact position between a brake device for disc braking and a brake disc is fixed, and the relationship between the friction radius on the brake disc and the brake performance cannot be studied. To change the radius of friction of the brake device against the brake disc, it is necessary to disassemble and assemble the brake device of different specifications several times.
Disclosure of Invention
Aiming at the problem that the friction radius is inconvenient to change in the existing brake performance test bed, the application provides a modularized comprehensive brake performance test bed, which aims at: in the test process, the friction radius can be changed through simple adjustment operation, and the high-efficiency completion of the test is facilitated.
The technical scheme adopted by the application is as follows:
the utility model provides a train disc caliper braking module for experimental test, is including the braking module loading seat that is used for being connected with the test bench, the braking module loading seat is connected with the brake disc through the bearing, be provided with train friction radius adjusting device on the braking module loading seat, train friction radius adjusting device includes friction radius adjusting device backup pad, be provided with the guide rail in the friction radius adjusting device backup pad, be provided with the spout on the guide rail, be connected with train disc caliper braking module mount pad on the spout, be connected with train disc caliper braking module on the train disc caliper braking module mount pad, still be provided with the hob that is used for promoting train disc caliper braking module mount pad reciprocating motion in the friction radius adjusting device backup pad.
After the technical scheme is adopted, the linear driving mechanism formed by the guide rail, the sliding groove and the screw rod can drive the mounting seat of the brake module of the disc type caliper to linearly move, so that the whole linear movement of the brake module of the disc type caliper is driven, the movement direction is parallel to the plane of the brake disc, and therefore the effect of adjusting the position of the brake module of the disc type caliper for applying braking force to the brake disc is achieved, and the effect of adjusting the friction radius is achieved.
Preferably, the train disc type caliper brake module comprises a middle support and an air cylinder I, two ends of the middle support are respectively hinged with one support, one ends of the two supports are respectively hinged with two ends of the air cylinder I, the other ends of the two supports are respectively hinged with a friction block pressing plate, a clamp for providing braking force for the side face of a brake disc is connected to the friction block pressing plates through bolts, a plurality of train disc type caliper brake module friction blocks are arranged on the surface of the clamp, and a caliper mounting plate for connecting a brake module loading seat is arranged on the middle support.
The structure of the train disc type caliper brake module is optimized by the aid of the optimized scheme, and the train disc type caliper brake module is used for researching the brake performance of the train disc type caliper. The design mode that the clamp is separated from the friction block pressing plate is adopted, and meanwhile, the train disc type caliper brake module friction blocks with different shapes and arrangement forms can be installed on the clamp, so that the test function of the application is more abundant, and the requirements of various comparison tests can be met.
Further preferably, the upper portion of the friction block pressing plate is connected with a suspension bolt, the top of the suspension bolt is provided with a rigidity accurate adjusting device, a caliper mounting plate used for being connected with a brake module loading seat is also arranged below the rigidity accurate adjusting device, the caliper mounting plate is connected to a train disc type caliper brake module mounting seat, a kidney-shaped hole is formed in the caliper mounting plate, the suspension bolt penetrates through the kidney-shaped hole to form sliding connection with the caliper mounting plate, and a spring is arranged between the lower end of the suspension bolt and the caliper mounting plate.
After the adoption of the preferable scheme, vibration caused by friction braking can be buffered through the spring arranged between the lower end of the suspension bolt and the mounting plate of the caliper, excessive vibration of the brake module in the tangential direction of the brake disc and resonance caused by the excessive vibration are avoided, and the reality of vibration data is not influenced by the increase of the suspension bolt. In addition, a rigidity accurate adjusting device is arranged, and the rigidity of the bilateral spring is accurately adjusted according to the actual experimental research requirement, so that the influence relation of the contact rigidity of the brake disc/sheet on the braking performance of the brake disc/sheet is researched.
Preferably, a wear debris collecting device is arranged below the brake disc. With this preferred solution, the swarf generated by the brake disc can be collected and analyzed.
In summary, due to the adoption of the technical scheme, the beneficial effects of the application are as follows:
1. the linear driving mechanism formed by the guide rail, the sliding groove and the screw rod can drive the mounting seat of the brake module of the train disc type caliper to linearly move, so that the whole linear movement of the brake module of the train disc type caliper is driven, and the movement direction is parallel to the plane of the brake disc, thereby realizing the effect of adjusting the position of the brake module of the train disc type caliper for applying the braking force to the brake disc, and also achieving the effect of adjusting the friction radius.
2. The design mode that the clamp is separated from the friction block pressing plate is adopted, and meanwhile, the train disc type caliper brake module friction blocks with different shapes and arrangement forms can be installed on the clamp, so that the test function of the application is more abundant, and the requirements of various comparison tests can be met.
3. Through the spring that sets up between suspension bolt lower extreme and the calliper mounting panel, can cushion the vibration that leads to owing to friction braking, avoid the excessive vibration of braking module in brake disc tangential and arouse self resonance, and increase suspension bolt does not influence vibration data's authenticity. In addition, a rigidity accurate adjusting device is arranged, and the rigidity of the bilateral spring is accurately adjusted according to the actual experimental research requirement, so that the influence relation of the contact rigidity of the brake disc/sheet on the braking performance of the brake disc/sheet is researched.
4. The abrasive dust generated by the brake disc can be collected and analyzed.
Drawings
The application will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic view of a train friction radius adjustment device according to the present application;
FIG. 3 is a schematic illustration of the structure of a train disc caliper brake module of the present application;
FIG. 4 is a schematic view of the structure of the present application attached to a test stand.
Wherein: 1-motor, 2-clutch motor coupling sleeve, 3-clutch, 4-bearing housing I, 5-flywheel set, 6-bearing housing II, 7-coupler I, 8-torque sensor, 9-coupler II, 10-friction radius adjustment device, 11-air compressor, 12-brake module, 13-wear debris collection device, 14-thermal imager, 15-test stand base, 16-brake disc, 17-microphone, 18-brake module loading stand, 19-torque sensor mount, 20-bearing housing II mount, 21-bearing housing I mount, 22-motor mount, 23-power supply and signal line, 24-control stand, 25-friction radius adjustment device support plate, 26-screw, 27-train disc brake module mount, 28-runner, 29-guide rail, 30-caliper mounting plate, 31-stiffness precision adjustment device, 32-suspension bolt, 33-joint support stand, 34-intermediate stand, 35-stand, 36-cylinder, 37-cylinder support, 38-II, 39-clamp, 40-clamp, 41-clamp, 42-spring clamp, and spring plate.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
The present application will be described in detail with reference to fig. 1 to 4.
A train disc type caliper brake test stand with a vibration reduction structure is installed in a laboratory. Firstly, a foundation with proper size and depth is prefabricated in a laboratory, a test bed base 15 is completely fixed with the foundation, a brake module loading seat 18, a torque sensor mounting table 19, a bearing seat II mounting table 20, a bearing seat I mounting table 21 and a motor mounting table 22 are fixedly connected with the test bed base 15 through bolts, an output shaft of a motor 1 is connected with a clutch 3 through a clutch motor coupling sleeve 2, power transmission is realized through a bearing seat I4 and a flywheel set 5, the flywheel set 5 is supported between the bearing seat I4 and the bearing seat II 6, a rotating shaft output end of the flywheel set 5 is connected to a rotating shaft of the torque sensor 8 through a coupler I7, the torque sensor 8 is mounted on the torque sensor mounting table 19, a rotating shaft output end of the torque sensor is connected with a rotating shaft of a brake disc 16, and the rotating shaft is mounted on the brake module loading seat 18 through a bearing, so that power transmission of the modularized friction brake experimental device is realized. The motor 1, the clutch motor coupling sleeve 2, the clutch 3, the bearing seat I4, the flywheel set 5, the bearing seat II 6, the coupler I7, the torque sensor 8, the coupler II 9, the brake module loading seat 18 and the brake disc 16 are arranged along an axial direction, and each mounting seat or loading seat is mounted on the test bed base 15 through bolts.
The brake module loading seat 18 is a metal seat with a plurality of mounting holes on a plurality of surfaces, and the friction brake module loading seat 18 can be connected with one of a train disc type caliper brake module, a single friction block caliper brake module, a tread brake module or a full-size automobile brake module through the position setting of the mounting holes.
The embodiment is also provided with a console 24, the console 24 controls the starting, closing and speed regulation of the motor 1 through a power supply and a signal wire, controls the operation of the clutch 3, controls the operation state of the brake module 12 (namely, the operation state of the air compressor 11 in the embodiment), displays the rotation speed of the motor 1 collected through a rotation speed sensor arranged on the output shaft of the motor 1, displays the torque data collected by the torque sensor 7, displays the vibration data of the brake module 12 or other components with research significance collected by a dynamic signal analysis system arranged in the console 24, displays the braking force provided by the air compressor 11 collected by a three-way force sensor arranged on the middle bracket 34 to the brake module, displays the temperature field of the brake disc photographed by the thermal imager 14 arranged on the front surface of the brake disc, and displays the friction noise signal collected by the microphone 17 arranged beside the brake disc. In summary, by providing the console 24, the start/stop of the test stand, the start/stop of the motor 1, the suction/separation of the clutch 3, the loading/unloading of the brake module 12, the control of the power supply and the emergency stop can be controlled more conveniently, so as to collect and display the rotation speed signal of the motor 1, the torque signal of the torque sensor 8, the braking force provided by the air compressor 11, the vibration and friction noise signal of the brake module 12 and the temperature field of the brake disc. The control process can be implemented by a program algorithm existing in the prior art, and further description is not needed in this embodiment.
In this embodiment, the brake module loading seat 18 is connected with a train disc caliper brake module, the train disc caliper brake module comprises a middle bracket 34 and an air cylinder I36, two ends of the middle bracket 34 are respectively hinged with a bracket 35, one ends of the two brackets 35 are respectively hinged with two ends of the air cylinder I36, the other ends of the two brackets 35 are respectively hinged with a friction block pressing plate 41, the friction block pressing plates 41 are connected with a clamp 40 for providing braking force for the side surface of a brake disc through bolts, the surface of the clamp 40 is provided with a plurality of train disc caliper brake module friction blocks, and the middle bracket 34 is provided with a caliper mounting plate 30 for connecting the brake module loading seat 18 through a joint supporting seat 33.
As a preferred mode, a train friction radius adjusting device 10 is arranged between the train disc type caliper brake module and the brake module loading seat 18, the train friction radius adjusting device 10 comprises a friction radius adjusting device supporting plate 25, a guide rail 29 is arranged on the friction radius adjusting device supporting plate 25, a sliding groove 28 is arranged on the guide rail 29, a train disc type caliper brake module mounting seat 27 is connected to the sliding groove 28, the train disc type caliper brake module mounting seat 27 is connected with a caliper mounting plate 30, and a screw rod 26 for pushing the train disc type caliper brake module mounting seat 27 to reciprocate is further arranged on the friction radius adjusting device supporting plate 25.
As a preferred mode, the upper portion of friction block clamp plate 41 is connected with suspension bolt 32, suspension bolt top is provided with rigidity accurate adjustment device 31, rigidity accurate adjustment device 31 below is provided with the calliper mounting panel 30 that is used for connecting braking module loading seat 18, calliper mounting panel 30 connects on train disc type calliper braking module mount pad 27, be provided with waist shape hole on the calliper mounting panel 30, suspension bolt 32 passes waist shape hole and constitutes the slidable connection with calliper mounting panel 30, be provided with spring 42 between suspension bolt 32 lower extreme and the calliper mounting panel 30.
The train disc type caliper brake module assembled by the caliper mounting plate 30, the suspension bolts 32, the joint support seat 33, the middle support 34, the support 35, the air cylinder 36, the air cylinder support 37, the bolt I38, the bolt II 39, the friction block pressing plate 41 and the spring 42 is mounted on the brake module loading seat 18, the clamps 40 provided with the train disc type caliper brake module friction blocks in a certain arrangement form are fixedly connected with the friction block pressing plate 41 through the bolts, the brake disc 16 is mounted on the rotating shaft of the brake module loading seat 18, the air compressor 11 is connected with the air cylinder 36 through an air pressure pipeline, the connection mode of the control system and the test equipment is consistent with that described above, and a tester operates in front of the control console 24 and completes related test work.
The above examples merely illustrate specific embodiments of the application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the application, which fall within the scope of protection of the application.
Claims (2)
1. A train disc caliper brake module for test testing, comprising a brake module load carrier (18) for connection with a test stand, characterized in that: the brake module loading seat (18) is connected with a brake disc through a bearing, a train friction radius adjusting device (10) is arranged on the brake module loading seat (18), the train friction radius adjusting device (10) comprises a friction radius adjusting device supporting plate (25), a guide rail (29) is arranged on the friction radius adjusting device supporting plate (25), a sliding groove (28) is formed in the guide rail (29), a train disc type caliper brake module mounting seat (27) is connected onto the sliding groove (28), a train disc type caliper brake module is connected onto the train disc type caliper brake module mounting seat (27), and a spiral rod (26) for pushing the train disc type caliper brake module mounting seat (27) to reciprocate is further arranged on the friction radius adjusting device supporting plate (25);
the train disc type caliper brake module comprises a middle support (34) and an air cylinder I (36), wherein two ends of the middle support (34) are respectively hinged with a support (35), one ends of the two supports (35) are respectively hinged with two ends of the air cylinder I (36), the other ends of the two supports (35) are respectively hinged with a friction block pressing plate (41), a clamp (40) for providing braking force for the side face of a brake disc is connected to the friction block pressing plates (41) through bolts, a plurality of train disc type caliper brake module friction blocks are arranged on the surface of the clamp (40), and a caliper mounting plate (30) for connecting a brake module loading seat (18) is arranged on the middle support (34);
the upper part of the friction block pressing plate (41) is connected with a suspension bolt (32), the top of the suspension bolt is provided with a rigidity accurate adjusting device (31), a caliper mounting plate (30) used for being connected with a brake module loading seat (18) is also arranged below the rigidity accurate adjusting device (31), the caliper mounting plate (30) is connected to a train disc type caliper brake module mounting seat (27), a waist-shaped hole is formed in the caliper mounting plate (30), the suspension bolt (32) penetrates through the waist-shaped hole to form slidable connection with the caliper mounting plate (30), and a spring (42) is arranged between the lower end of the suspension bolt (32) and the caliper mounting plate (30);
a plurality of mounting holes are formed in a plurality of surfaces of the brake module loading seat (18).
2. A train disc caliper brake module for use in a test according to claim 1, wherein: and a grinding dust collecting device (13) is arranged below the brake disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910198016.0A CN109799102B (en) | 2019-03-15 | 2019-03-15 | Train disc type caliper brake module for test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198016.0A CN109799102B (en) | 2019-03-15 | 2019-03-15 | Train disc type caliper brake module for test |
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| CN109799102A CN109799102A (en) | 2019-05-24 |
| CN109799102B true CN109799102B (en) | 2023-12-12 |
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