Multi-functional integrated testing machine for motor train unit braking system

Abstract

The invention relates to the technical field of braking capacity testing devices, and particularly discloses a motor train unit braking system multifunctional integrated testing machine which comprises a testing mechanism, the testing mechanism comprises a testing platform and an open groove formed in the upper surface of the testing platform, a driving shaft is installed in the open groove, and a follow-up rotating drum is fixedly installed on the circumferential side face of the driving shaft; a plurality of anti-skid convex blocks are fixedly installed on the peripheral side face of the follow-up rotary drum, the water injection mechanism comprises a lifting notch formed in the upper surface of the testing platform, and a water storage fence is arranged in the lifting notch; according to the device, two groups of follow-up rotating drums are arranged to enable a vehicle to run on the rotating drums for in-situ acceleration testing, a water storage enclosure can be lifted by starting a lifting air cylinder, at the moment, a conveying pump is started to convey water in a water tank into the water storage enclosure, the wading condition of the vehicle is simulated, and therefore the braking performance detection function in different scenes can be provided; and the comprehensiveness and the accuracy of a detection result are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of braking capacity testing devices, and particularly relates to a multi-functional integrated testing machine for the braking system of a multiple unit train. Background Art

[0002] During the driving process of a vehicle, various emergencies may occur, such as pedestrians crossing the road suddenly, the vehicle in front changing lanes suddenly or stopping suddenly, etc. The braking capacity of the vehicle directly determines whether it can stop in time in case of an emergency and avoid collision accidents. For example, a vehicle with good braking performance can reduce its speed from a relatively high speed to zero within a short distance, thus effectively reducing the probability of accidents. A good braking system can ensure the vehicle to maintain stability at high speed or on a slippery road surface. If the braking capacity is insufficient, the vehicle may have problems such as too long braking distance, the vehicle deviating during braking or even rolling over, which poses a serious threat to the lives and safety of the driver and passengers and other road users. The braking capacity is one of the important indicators of vehicle performance. Through testing, key parameters such as the braking distance, braking deceleration, and braking force distribution of the vehicle can be accurately evaluated. These parameters not only reflect the design and manufacturing level of the braking system but also are closely related to the overall performance of the vehicle. For example, high-performance sports cars usually require a more powerful braking system to match their high-speed driving ability, and the braking capacity test can verify whether it meets the design requirements. During the vehicle R & D and production process, the braking capacity test is an important part of quality control. By testing the braking performance of different batches of vehicles, potential quality problems can be found, and the production process and component quality standards can be adjusted in time, thereby improving the overall quality of the vehicle;

[0003] A device and method for testing braking performance proposed according to the patent with the publication number CN 102459051 B. The disclosed device of the present invention includes: a driving unit that generates power; a testing unit that is driven by the driving unit; and a control unit that controls the operation of the braking device to generate a braking force on the testing unit and check the braking performance. The present invention uses a wire rope unit that moves at a speed that induces a braking operation by the rotation of mutually separated driving sheaves instead of testing the braking performance in an expensive elevator test tower, thereby preventing possible test hazards caused in the test tower. Further, the present invention controls the loading capacity only by controlling the load of the driving unit to achieve simple testing;

[0004] Traditional testing devices can only simulate the braking capacity of a vehicle in the indoor up and down slope state, but during the actual driving process of the vehicle, there will also be water accumulation on the road surface. Therefore, the traditional braking capacity testing device cannot simulate the scenarios during the actual driving process, resulting in inaccurate test results.

[0005] To this end, those skilled in the art have proposed a multi-functional integrated testing machine for the braking system of EMUs to solve the problems raised in the background art.

[0006] The above information disclosed in this background art is only used to increase the understanding of the background art of the present invention. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0007] The purpose of the present invention is to provide a multi-functional integrated testing machine for the braking system of EMUs to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A multi-functional integrated testing machine for the braking system of EMUs, comprising:

[0010] A testing mechanism, the testing mechanism includes a testing platform and a slot opened on the upper surface of the testing platform. The slot is a rectangular groove structure, and the number of the slots is two. The two slots are respectively located at both ends of the testing platform. A driving shaft is installed inside the slot. The number of driving shafts in each slot is two. A follower rotating cylinder is fixedly installed on the circumferential surface of the driving shaft, and a plurality of anti-slip convex blocks are fixedly installed on the circumferential surface of the follower rotating cylinder;

[0011] A water injection mechanism, the water injection mechanism includes a lifting slot opened on the upper surface of the testing platform. A water storage enclosure is arranged inside the lifting slot. The water storage enclosure is slidably matched with the lifting slot. The water storage enclosure is a rectangular frame structure. A water tank is fixedly installed on one side surface of the testing platform. One end of the water tank is connected with a corrugated hose. A plurality of lifting cylinders are installed inside the testing platform. One end of the lifting cylinder includes a lifting shaft, and one end of the lifting shaft is connected with the lower surface of the water storage enclosure.

[0012] Preferably, one end of the corrugated hose is fixedly installed on the water storage enclosure, and a delivery pump is arranged on the corrugated hose. The corrugated hose can provide a change space in length and bending angle, so as to adapt to the up and down movement of the water storage enclosure 3 and enable the water flow to be discharged normally.

[0013] Preferably, a driving gear is fixedly installed on the circumferential surface of one end of the driving shaft, and the driving gear is located on one side surface of the testing platform.

[0014] Preferably, a storage board is fixedly installed on one side surface of the testing platform. A speed measuring device is arranged on the storage board. One end of the speed measuring device is provided with a connecting shaft, and one end of the connecting shaft is connected with a follower gear. The driving gear is meshed with the follower gear.

[0015] Preferably, a column is provided on the speed measurement device, and a display screen is fixedly installed on the upper surface of the column.

[0016] Preferably, extension shafts are fixedly connected to both side surfaces of the test platform, and movable rotating plates are movably connected to the circumferential surfaces of the extension shafts.

[0017] Preferably, a hydraulic cylinder is provided on the movable rotating plate. One end of the hydraulic cylinder includes a jacking shaft, and one end of the jacking shaft is connected to the movable rotating plate.

[0018] Preferably, movable rail plates are fixedly installed on both side surfaces of the test platform. Moving chutes are formed on the upper surfaces of the movable rail plates, and baffles are slidably connected inside the moving chutes.

[0019] Preferably, a transverse cylinder is fixedly installed on the baffle. One end of the transverse cylinder is connected to a telescopic shaft, and the end of the telescopic shaft away from the transverse cylinder is connected to a pressing plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] (1) In the present invention, two sets of follower drums are provided for the vehicle to drive onto for in-situ acceleration testing. When the vehicle brakes, the rotational speed of its tires will decrease. At this time, the tires will drive the rotational speed of the follower drums to change accordingly, and then the driving gear on the drive shaft will mesh with the follower gear. The speed measurement device can detect the braking performance of the vehicle by detecting the change amplitude of the rotational speed of the follower gear. Moreover, the device can also raise the water storage enclosure by starting the lifting cylinder, and then start the delivery pump to deliver the water in the water tank into the water storage enclosure to simulate the vehicle wading condition, so as to provide the braking performance detection function under different scenarios and improve the comprehensiveness and accuracy of the detection results.

[0022] (2) In the present invention, movable rail plates with transverse cylinders and pressing plates are installed at both ends. The movable rail plate at the front of the vehicle can provide a limiting effect for the vehicle during flat ground testing, allowing the wheels to rotate in-situ on the follower drums. The movable rail plate at the rear of the vehicle can prevent the vehicle from sliding when simulating the ramp state. By providing hydraulic cylinders with jacking shafts on the movable rotating plates at both ends, the pitching state of the entire test platform can be controlled, thereby being able to simulate the uphill and downhill scenarios during actual driving, and further being able to test the braking ability of the vehicle when going uphill and downhill.

[0023] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the present invention will become apparent by reference to the drawings and the following detailed description. Description of the Drawings

[0024] Figure 1 Schematic left - view three - dimensional structure diagram of the present invention;

[0025] Figure 2 Schematic right - view three - dimensional structure diagram of the present invention;

[0026] Figure 3 Schematic enlarged view of the partial structure at A of the present invention;

[0027] Figure 4 Top - view of the present invention;

[0028] Figure 5 Schematic diagram of the internal structure of the lifting notch of the present invention;

[0029] Figure 6 Front - view of the present invention.

[0030] In the figure: 1, test platform; 2, lifting notch; 3, water - storage enclosure; 4, slot; 5, drive shaft; 6, follower rotating cylinder; 7, anti - slip convex block; 8, extension shaft; 9, movable rotating plate; 10, jacking shaft; 11, hydraulic cylinder; 12, moving rail plate; 13, moving chute; 14, baffle; 15, transverse cylinder; 16, telescopic shaft; 17, extrusion plate; 18, water tank; 19, delivery pump; 20, corrugated hose; 21, placement plate; 22, speed - measuring device; 23, driving gear; 24, follower gear; 25, column; 26, display screen; 27, lifting cylinder. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] Please refer to Figures 1 - 6 As shown, a multi - functional integrated tester for the braking system of a multiple unit train includes:

[0034] A testing mechanism, the testing mechanism includes a test platform 1 and a slot 4 opened on the upper surface of the test platform 1. The slot 4 is a rectangular trough structure, and the number of the slots 4 is two. The two slots 4 are respectively located at both ends of the test platform 1. A drive shaft 5 is installed inside the slot 4. The number of drive shafts 5 in each slot 4 is two. A follower rotating cylinder 6 is fixedly installed on the circumferential surface of the drive shaft 5, and a number of anti - slip convex blocks 7 are fixedly installed on the circumferential surface of the follower rotating cylinder 6;

[0035] Water injection mechanism. The water injection mechanism includes a lifting notch 2 opened on the upper surface of the test platform 1. Inside the lifting notch 2, there is a water storage enclosure 3. The water storage enclosure 3 is slidably matched with the lifting notch 2. The water storage enclosure 3 is of a rectangular frame structure. On one side surface of the test platform 1, a water tank 18 is fixedly installed. One end of the water tank 18 is connected with a corrugated hose 20. Inside the test platform 1, a number of lifting cylinders 27 are installed. One end of the lifting cylinder 27 includes a lifting shaft, and one end of the lifting shaft is connected to the lower surface of the water storage enclosure 3.

[0036] Specifically, one end of the corrugated hose 20 is fixedly installed on the water storage enclosure 3. A delivery pump 19 is arranged on the corrugated hose 20. The corrugated hose 20 can provide a change space in terms of length and bending angle, so as to adapt to the up and down movement of the water storage enclosure 3 and enable the water flow to be discharged normally.

[0037] Specifically, on the circumferential side surface of one end of the drive shaft 5, a driving gear 23 is fixedly installed. The driving gear 23 is located on one side surface of the test platform 1.

[0038] Specifically, on one side surface of the test platform 1, a placement board 21 is fixedly installed. A speed measurement device 22 is arranged on the placement board 21. One end of the speed measurement device 22 is provided with a connecting shaft, and one end of the connecting shaft is connected with a follower gear 24. The driving gear 23 is meshed with the follower gear 24.

[0039] Specifically, on the speed measurement device 22, there is a column 25. On the upper surface of the column 25, a display screen 26 is fixedly installed. The display screen 26 can be connected to the speed measurement device 22. The tester can calculate and compare the braking ability according to the observed data.

[0040] Specifically, on both side surfaces of the test platform 1, extension shafts 8 are fixedly connected. On the circumferential side surface of the extension shafts 8, movable rotating plates 9 are movably connected.

[0041] Specifically, on the movable rotating plate 9, a hydraulic cylinder 11 is arranged. One end of the hydraulic cylinder 11 includes a jacking shaft 10, and one end of the jacking shaft 10 is connected to the movable rotating plate 9. By arranging hydraulic cylinders 11 with jacking shafts 10 on the movable rotating plates 9 at both ends, the pitching state of the entire test platform 1 can be controlled, so that the uphill and downhill scenarios during the actual driving process can be simulated, and further the braking ability of the vehicle when going uphill and downhill can be tested.

[0042] As can be seen from the above, the device allows the vehicle to drive onto it for in-situ acceleration testing by setting two sets of follower drums 6. When the vehicle brakes, the rotational speed of its tires will decrease. At this time, the tires will drive the rotational speed of the follower drums 6 to change accordingly. Furthermore, the driving gear 23 on the drive shaft 5 meshes with the follower gear 24. The speed measurement device 22 can detect the braking performance of the vehicle by detecting the change amplitude of the rotational speed of the follower gear 24. In addition, the device can also lift the water storage enclosure 3 by activating the lifting cylinder 27. At this time, the water transfer pump 19 is started to transfer the water in the water tank 18 into the water storage enclosure 3 to simulate the vehicle wading condition, thereby enabling the braking performance detection function in different scenarios and improving the comprehensiveness and accuracy of the detection results.

[0043] Embodiment 2:

[0044] Please refer to Figures 1 - 6 As shown, moving rail plates 12 are fixedly installed on both sides of the test platform 1. A moving chute 13 is formed on the upper surface of the moving rail plate 12, and a baffle 14 is slidably connected inside the moving chute 13.

[0045] Specifically, a transverse cylinder 15 is fixedly installed on the baffle 14. One end of the transverse cylinder 15 is connected with a telescopic shaft 16, and the end of the telescopic shaft 16 away from the transverse cylinder 15 is connected with a pressing plate 17.

[0046] As can be seen from the above, the device installs moving rail plates 12 with transverse cylinders 15 and pressing plates 17 at both ends. The moving rail plate 12 at the front of the vehicle can provide a limiting effect for the vehicle during flat ground testing, allowing the wheels to rotate in-situ on the follower drums 6. The moving rail plate 12 at the rear of the vehicle can prevent the vehicle from sliding when simulating the ramp state.

[0047] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0048] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "plural" is two or more unless otherwise specifically defined.

[0049] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0051] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0052] In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional integrated testing machine for the brake system of a train, characterized in that: include: A testing mechanism, the testing mechanism comprising a testing platform (1) and a slot (4) formed on the upper surface of the testing platform (1), the slot (4) being a rectangular slot structure, the number of the slots (4) being two, the two slots (4) being respectively located at two ends of the testing platform (1), a driving shaft (5) being installed inside the slot (4), the number of the driving shafts (5) in each slot (4) being two, a follower drum (6) being fixedly installed on the peripheral side surface of the driving shaft (5), and a plurality of anti-slip bumps (7) being fixedly installed on the peripheral side surface of the follower drum (6); A water injection mechanism, the water injection mechanism comprises a lifting slot (2) provided on the upper surface of the test platform (1), a water storage enclosure (3) is arranged inside the lifting slot (2), the water storage enclosure (3) and the lifting slot (2) are slidably matched, the water storage enclosure (3) is a rectangular frame structure, a water tank (18) is fixedly installed on one side of the test platform (1), one end of the water tank (18) is connected to a corrugated hose (20), a plurality of lifting cylinders (27) are installed inside the test platform (1), one end of the lifting cylinder (27) includes a lifting shaft, and one end of the lifting shaft is connected to the lower surface of the water storage enclosure (3).

2. The multifunctional integrated testing machine for the EMU braking system according to claim 1 is characterized in that: One end of the corrugated hose (20) is fixedly mounted on the water storage enclosure (3), and a delivery pump (19) is arranged on the corrugated hose (20).

3. The multifunctional integrated testing machine for the EMU braking system according to claim 1 is characterized in that: A driving gear (23) is fixedly mounted on the peripheral side surface of one end of the driving shaft (5), and the driving gear (23) is located on a side surface of the test platform (1).

4. The multifunctional integrated testing machine for the EMU braking system according to claim 3 is characterized in that: A storage plate (21) is fixedly mounted on one side of the test platform (1), a speed measuring device (22) is arranged on the storage plate (21), a connecting shaft is arranged at one end of the speed measuring device (22), a follower gear (24) is connected to one end of the connecting shaft, and the driving gear (23) is meshed with the follower gear (24).

5. The multifunctional integrated testing machine for the EMU braking system according to claim 4 is characterized in that: The speed measuring device (22) is provided with a column (25), and a display screen (26) is fixedly mounted on the upper surface of the column (25).

6. The multifunctional integrated testing machine for the EMU braking system according to claim 1 is characterized in that: Both side surfaces of the test platform (1) are fixedly connected to an epitaxial shaft (8), and a movable rotating plate (9) is movably connected to the peripheral side surface of the epitaxial shaft (8).

7. The multifunctional integrated testing machine for the EMU braking system according to claim 6 is characterized in that: A hydraulic cylinder (11) is provided on the movable rotating plate (9), one end of the hydraulic cylinder (11) includes a lifting shaft (10), and one end of the lifting shaft (10) is connected to the movable rotating plate (9).

8. The multifunctional integrated testing machine for the EMU braking system according to claim 1 is characterized by: The test platform (1) is fixedly provided with movable rail plates (12) on both sides, the movable rail plates (12) are provided with movable slide grooves (13) on the upper surfaces, and the movable slide grooves (13) are slidably connected with baffle plates (14) inside.

9. The multifunctional integrated testing machine for the EMU braking system according to claim 8 is characterized in that: A transverse cylinder (15) is fixedly mounted on the baffle (14); one end of the transverse cylinder (15) is connected to a telescopic shaft (16); and one end of the telescopic shaft (16) away from the transverse cylinder (15) is connected to an extrusion plate (17).

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