CN115326441A - Rack rail traffic model testing device - Google Patents
Rack rail traffic model testing device Download PDFInfo
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- CN115326441A CN115326441A CN202211257527.3A CN202211257527A CN115326441A CN 115326441 A CN115326441 A CN 115326441A CN 202211257527 A CN202211257527 A CN 202211257527A CN 115326441 A CN115326441 A CN 115326441A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a tooth rail traffic model testing device, and relates to the technical field of rail traffic model testing. The simulation platform mainly comprises a lower structure simulation platform with adjustable gradient and an upper foundation bed simulation device, wherein the lower structure simulation platform with adjustable gradient comprises a lower structure support frame with adjustable gradient, a lower structure top surface simulation platform plate and a gradient value marking device fixed on the side surface of a movable corner of the lower structure support frame with adjustable gradient; the upper foundation bed simulation device is composed of a foundation bed model box capable of being filled with ballast simulation sand and a fastener simulation screw for fixing a toothed rail. The test device for the tooth track traffic model is simple in structure and convenient to operate, and can meet the requirement for quickly testing the tooth track traffic model.
Description
Technical Field
The invention relates to the technical field of rail traffic models, in particular to the technical field of gear railway models, and specifically relates to a test device for a rack rail traffic model.
Background
The rack-and-pinion railway is a rail transit form which is driven by a gear and a rack and can meet the requirement of an ultra-large slope. Specifically, on the basis of a traditional steel wheel steel rail railway, a gear is arranged on a train running mechanism, a corresponding rack is arranged on a rail, traction force and braking force are provided by means of the meshing action of the gear and the rack, and therefore the problem that the adhesion force between a locomotive and the rail is insufficient is solved, and the train is driven to run on the rail.
The rack rail railway generates various rack rail matching modes in the development process, and typical rack rail tracks mainly comprise the following types: the rack rail of the Riggenbach system consists of a plurality of steel plates, and the middle of the Riggenbach system is connected by cylinders at fixed intervals; in the Abt system, a rack is a vertical steel plate, an accurate tooth pit is milled on the rack by a machine, and a plurality of gears are matched to ensure that at least one gear is meshed with the rack in the running process of the locomotive, so that the meshing degree of the gear and a rack is high during running, and the running is relatively stable; the Strub system is similar to Abt, but uses only a single, wider rack; the Locher system is provided with two horizontally parallel gears on the corresponding vehicle steering frame, and the climbing capability is the strongest in the toothed rail railway.
It can be seen that the current rack system adopts the meshing form of gears and racks, and the difference is the meshing position and the meshing number of the gears and the racks. After practical use, the load climbing capability of various tooth rail models is different just because of the difference. The conventional tooth track traffic model testing device cannot quickly detect the load climbing performance of a tooth track model, and the testing device is complicated and complicated, and the testing process is complicated and trivial. Therefore, a simple and easy test device for a rack traffic model is urgently needed to solve the technical problem that the test process of the rack model in the prior art is complicated and trivial.
Based on the problems, the invention provides a tooth rail traffic model testing device, creatively provides a novel testing device, and the outstanding difference with the existing testing device is that the device is simple and easy, the operation is simple, the result is intuitive and accurate, the novel testing device is matched with the basic requirements of a testing device with excellent performance on good sensitivity, high precision and small error, and the device capable of quickly and accurately detecting the load climbing capability of a locomotive is provided.
Disclosure of Invention
The invention aims to provide a tooth track traffic model testing device, which solves the problems that the existing tooth track traffic model testing device is complicated in measurement, complicated and trivial in testing process and cannot quickly and accurately detect the load climbing performance of a tooth track model, and provides a simple tooth track traffic model testing device which is good in sensitivity, high in precision and small in error.
In order to achieve the purpose, the invention provides a toothed rail traffic model testing device which mainly comprises a lower structure simulation platform with an adjustable gradient and an upper foundation bed simulation device. The lower structure simulation platform with the adjustable gradient comprises a lower structure support frame with the adjustable gradient, a lower structure top surface simulation platform plate and a gradient value marking device fixed on the side surface of a movable corner of the lower structure support frame with the adjustable gradient; the upper foundation bed simulation device consists of a foundation bed model box capable of being filled with ballast simulation sand and a fastener simulation screw for fixing a toothed rail; the foundation bed model box for the ballasted track simulation sand capable of being filled comprises a filler layer arranged at the bottom of the foundation bed model box for the ballasted track simulation sand capable of being filled, the tooth rail arranged in the foundation bed model box for the ballasted track simulation sand capable of being filled and a model to be detected.
Further, the adjustable substructure braced frame of slope makes for four sides fluting aluminium alloy, substructure top surface simulation platform board joint is in the fluting of the adjustable substructure braced frame of slope.
Furthermore, a height-adjustable support is arranged below the lower-structure top surface simulation platform plate and is connected with the lower bottom plate through a movable connecting piece.
Further, the packing layer is a dry sand layer.
Further, the rack includes the track board and set up in the track board both sides the track wall, the track board middle part is equipped with the track gap.
Furthermore, the rack is arranged between the two parallel steel rails and longitudinally arranged along the line.
Further, the gear is installed at the bottom of the locomotive, and the axis of the gear is arranged along the running direction of the locomotive; the gear and the locomotive steel wheel belong to the same power system, and the same power equipment is used for providing the traction force required by climbing for the locomotive.
Furthermore, the engine is arranged at one transverse end of the gear and provides power for the rotation of the gear, the balance weight is arranged at the other end of the gear, and the engine, the gear and the balance weight are connected through the transmission shaft.
The slope value marking device comprises a fixed sliding groove and a slope detector hung on the fixed sliding groove, and the fixed sliding groove is respectively fixed on the slope-adjustable substructure supporting frame and the bottom plate.
Therefore, the novel test device for the rack traffic model is simple in structure and convenient to operate, and can meet the requirement for quickly and accurately testing the load climbing capacity of the rack traffic model.
The invention is further described with reference to the following figures and detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is described in further detail below with reference to the figures and the detailed description.
Fig. 1 is a schematic overall structure diagram of a rack traffic test model.
Fig. 2 is a schematic structural diagram of a slope-adjustable substructure simulation platform in a rack traffic test model.
Fig. 3 is a schematic structural view of a slope detector in a rack traffic test model.
Fig. 4 is a top view of a foundation model box structure for filling track ballast simulation sand in a tooth track traffic test model.
Fig. 5 is a side view of a foundation model box structure for filling track ballast simulation sand in a tooth track traffic test model.
Fig. 6 is a side view of a locomotive structure in a rack traffic test model.
Fig. 7 is a top view of a locomotive structure in a rack traffic test model.
Fig. 8 is a schematic diagram of a rack structure in the rack traffic test model.
The relevant references in the above figures are:
1-a foundation bed model box for filling railway ballast simulation sand, 2-a packing layer, 3-a lower structure supporting frame with adjustable gradient, 4-a height adjustable support, 5-a gradient detector, 6-a movable connecting piece, 7-a bottom plate, 8-a steel rail, 9-a toothed rail, 10-a sleeper, 11-a fastener simulation screw, 12-a transmission shaft, 13-a counterweight, 14-an engine, 15-a gear, 16-a track, 17-a wheel and 18-a carriage.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the invention based on these teachings. Before the present invention is described with reference to the accompanying drawings, it is to be noted that technical solutions and technical features provided in the present invention in various portions including the following description may be combined with each other without conflict.
In addition, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
With respect to terms and units in the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.
The rack traffic model testing device comprises a gradient-adjustable substructure simulation platform and an upper foundation bed simulation device, wherein the gradient-adjustable substructure simulation platform comprises a gradient-adjustable substructure support frame 3, a substructure top surface simulation platform plate and a gradient value marking device fixed on the side surface of a movable corner of the gradient-adjustable substructure support frame; the upper part foundation bed simulation device is composed of a foundation bed model box 1 capable of being filled with railway ballast simulation sand and a fastener simulation screw 11 for fixing a toothed rail.
The adjustable substructure braced frame of slope 3 is made for the four sides fluting aluminium alloy, substructure top surface simulation platform board joint is in the fluting of the adjustable substructure braced frame of slope 3.
And a height-adjustable support 4 is arranged below the lower structure top surface simulation platform plate and is connected with a lower bottom plate 7 through a movable connecting piece 6.
The foundation bed model box 1 for the ballasted track simulation sand capable of being filled comprises a packing layer 2 arranged at the bottom of the foundation bed model box 1 for the ballasted track simulation sand capable of being filled and a tooth rail 9 arranged in the foundation bed model box 1 for the ballasted track simulation sand capable of being filled.
The packing layer 2 is a dry sand layer.
The rack 9 comprises a track plate and track walls arranged on two sides of the track plate, and track gaps are formed in the middle of the track plate.
The tooth rail 9 is arranged between the two parallel steel rails 8 and is longitudinally arranged along the line; the material of the toothed rail 9 is the same as that of the steel rail 8, and the toothed rail is also made of high-wear-resistant high-manganese steel material.
The gear 15 is arranged at the bottom of the locomotive, and the axis of the gear is arranged along the running direction of the locomotive; the gear 15 and the locomotive steel wheel belong to the same power system, and the same power equipment is used for providing the traction force required by climbing for the locomotive.
The engine 14 is arranged at one transverse end of the gear 15 and provides power for the rotation of the gear 15, the counterweight 13 is arranged at the other end of the gear 15, and the engine, the gear 15 and the counterweight are connected through the transmission shaft 12.
Slope value marking device includes fixed spout and hangs and locates on the fixed spout slope detector 5, fixed spout is fixed in respectively slope adjustable substructure braced frame 3 reaches on the bottom plate 7.
The present invention will be further described below by way of specific embodiments.
The test device of the rack traffic model is mainly used for testing the load climbing capacity of the rack traffic model, and the model to be tested comprises the locomotive and the rack 9. As shown in fig. 6 and 7, the locomotive includes a car 18, a wheel structure disposed at the bottom of the car 18, a connecting rod connecting the wheel structure and the car 18, and the transmission shaft 12 connecting the engine 14, the gear 15, and the counterweight 13, wherein the wheel structure includes a running frame bottom plate connected to the connecting rod, and the wheels 17 disposed on the running plate, two rows of wheels are disposed on the running frame bottom plate, and the wheels 17 are capable of freely rotating. The carriage 18 is an iron box body, and is used for detecting the counterweight of the locomotive and carrying a weighting weight.
In this embodiment, the total length of the model size is 1200mm, the toothed rail railway model is a linear rail, the vertical distance (clear distance) between the inner edges of the two steel rails is 400mm, the mass of the locomotive model is 2kg, and the distance between the axle center of the gear transmission shaft and the plane of the steel rails is 15mm.
As shown in fig. 1, the material of the lower structural support frame 3 with adjustable gradient is aluminum section steel, and the steel section structure is aluminum section with grooves on four sides; the slope-adjustable substructure simulation platform is clamped in the groove of the slope-adjustable substructure supporting framework 3 and comprises the slope-adjustable substructure supporting framework 3, a substructure top surface simulation platform plate and a slope value marking device fixed on the side surface of a movable corner of the slope-adjustable substructure supporting framework; the upper part foundation bed simulation device is composed of the foundation bed model box 1 for filling the railway ballast simulation sand and the fastener simulation screw 11 for fixing the tooth rail. As shown in fig. 4 and 5, the upper-portion foundation bed simulation device includes the foundation bed model box 1 for the ballast-fillable simulation sand, which has an upper opening, the filler layer 2 laid on the bottom of the foundation bed model box 1 for the ballast-fillable simulation sand, and the rack 9 disposed in the foundation bed model box 1 for the ballast-fillable simulation sand. The structure of the foundation bed model box 1 for filling the railway ballast simulation sand is shown in fig. 4 and 5, the length is 1800mm, the width is 600mm, and the height is 100mm.
The lower structural support frame 3 with the adjustable gradient is a four-side slotted aluminum profile, so that the weight is light, and the mounting and dismounting are convenient; the height-adjustable support 4 is arranged at the bottom of the slope-adjustable substructure simulation platform for supporting, so that the required slope is achieved.
The foundation bed model box 1 for filling the railway ballast simulation sand is a wooden box body, and is convenient to process and manufacture. The foundation bed model box 1 for filling the railway ballast simulation sand can be used for simulating different geographic environments and hydrological conditions. Such as different soils, topography, water level and natural environment.
As shown in fig. 8, the installation manner of the rack 9 and the gradient-adjustable substructure simulation platform is fixed by the fastener simulation screw 11, and the rail 8 and the rack 9 are reasonably and closely fixed on the sleeper 10 without the problems of gaps, bulges, twists and the like. The fastener simulation screw 11 is positioned at a model sleeper of the toothed rail railway model.
As shown in fig. 2 and 3, the slope value marking device includes the fixed sliding groove and the slope detector 5 hung on the fixed sliding groove, and the fixed sliding groove is fixed on the slope-adjustable substructure supporting frame 3 and the bottom plate 7, respectively. Along with the change of the height of the bracket, the slope detector 5 is used for detecting the slope value of the tooth rail traffic model under the loading condition in real time.
The test procedure was as follows.
(1) And after the model is inspected, mounting the gear model on a corresponding position of the locomotive model.
(2) And (3) no-load flat slope traveling inspection: after the gear model is placed, the locomotive model is placed on the tooth rail railway model, and no-load flat slope traveling inspection is started. And (4) carrying out subsequent loading after the no-load flat slope running inspection is successful, otherwise, directly terminating the loading link and recording the final grade of climbing ability.
(3) And (3) calculating gradient safety inspection: and adjusting the gradient-adjustable substructure simulation platform to calculate the gradient, placing the locomotive model on the toothed rail railway model after the test meets the requirement, and starting to carry out no-load flat slope running test.
(4) And (3) climbing capability test: the load and the gradient are changed (can be increased or reduced), and secondary loading is carried out after the weight is loaded. The load and gradient requirements can be changed for many times, if climbing is successful for many times, the maximum group is taken as the final result, and if all loading fails, the partial result is not obtained.
And (5) evaluating the detection result.
The total score of the model detection score is 100, and the total score comprises three aspects of calculation books and design drawings (a), manufacturing quality and model weight (b) and climbing capacity (c), wherein the scores are 20, 25 and 55 respectively. Wherein the score is fine.
In the calculation book and the design drawing (a), 10 scores of accurate and reasonable design theory, means, content and the like are selected, and 10 scores of tooth track model structure, use tools and process innovation are selected.
In the manufacturing quality and the model weight (b), the model proportion rationality and the model creation are divided into 17 points, and the model manufacturing attractiveness is divided into 8 points.
The climbing capacity (c) consists of two parts and is calculated by the following method.
The loading achievement = no-load flat slope achievement + calculated grade achievement + loaded climbing achievement.
Wherein, each score is calculated by multiplying the corresponding single evaluation coefficient by the single total score; the total score of each branch is respectively as follows: the no-load grade score is 5 points, the grade score is 15 points and the load grade score is 35 points.
(1) The no-load grade score is 5 points, and the scoring method is as follows.
After the locomotive model is installed, the steel wheels are in direct contact with the steel rails for 1 minute, the gears are successfully meshed with the tooth rails for 1 minute, and wheels do not slip off 3 minutes in the locomotive running process.
(2) Grade scores of 15 were calculated, and the scoring method was as follows.
In the process of calculating the gradient and climbing the slope, the rail and the sleeper do not generate the distortion for 5 minutes, and the locomotive successfully passes through the rail model for 10 minutes.
(3) The load climbing score was 35 points, and the calculation method was as follows.
The scores of the above a-c are added, and the one with the highest score wins the winner.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and is not to be construed as limited to the exclusion of other embodiments, and that various other combinations, modifications, and environments may be used and modifications may be made within the scope of the concepts described herein, either by the above teachings or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The test device is characterized by mainly comprising a gradient-adjustable substructure simulation platform and an upper foundation bed simulation device, wherein the gradient-adjustable substructure simulation platform comprises a gradient-adjustable substructure support frame, a substructure top surface simulation platform board and a gradient value marking device fixed on the side surface of a movable corner of the gradient-adjustable substructure support frame; the upper part foundation bed simulation device consists of a foundation bed model box for filling the railway ballast simulation sand and a fastener simulation screw for fixing the toothed rail; the foundation bed model box for the ballasted track simulation sand capable of being filled comprises a filler layer arranged at the bottom of the foundation bed model box for the ballasted track simulation sand capable of being filled, the tooth rail arranged in the foundation bed model box for the ballasted track simulation sand capable of being filled and a model to be detected.
2. The tooth rail traffic model test device of claim 1, wherein the gradient adjustable substructure support frame is made of four-sided grooved aluminum profiles, and the substructure top surface simulation platform board is snapped into the grooves of the gradient adjustable substructure support frame.
3. The test device for a rack traffic model according to claim 1, wherein a height-adjustable bracket is provided below the lower structure top surface simulation platform plate and connected with the lower bottom plate through a movable connecting piece.
4. The tooth rail traffic model test device of claim 1, wherein the packing layer is a dry sand layer.
5. The test device for the toothed rail traffic model according to claim 1, wherein the toothed rail comprises a rail plate and rail walls arranged on two sides of the rail plate, and a rail gap is formed in the middle of the rail plate.
6. The rack traffic model test device of claim 1, wherein the rack is disposed between two parallel rails, longitudinally along the line.
7. The toothed rail traffic model test device according to claim 1, wherein the model to be tested comprises the toothed rail and a locomotive, a gear and an engine are mounted at the bottom of the locomotive, and a shaft center is arranged along the running direction of the locomotive; the gear and the locomotive steel wheel belong to the same power system, and the same power equipment is used for providing the traction force required by climbing for the locomotive; the engine is arranged at one transverse end of the gear and provides power for the rotation of the gear, the balance weight is arranged at the other end of the gear, and the engine, the gear and the balance weight are connected through a transmission shaft.
8. The test device for a rack traffic model according to claim 1, wherein the slope value indication device comprises a fixed sliding groove and a slope detector hung on the fixed sliding groove, and the fixed sliding groove is fixed on the slope-adjustable substructure supporting frame and the bottom plate respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211257527.3A CN115326441A (en) | 2022-10-14 | 2022-10-14 | Rack rail traffic model testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211257527.3A CN115326441A (en) | 2022-10-14 | 2022-10-14 | Rack rail traffic model testing device |
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| CN203772550U (en) * | 2014-03-06 | 2014-08-13 | 深圳市三源色文化传播有限公司 | Gradient adjustable pavement simulation device |
| CN108327731A (en) * | 2018-04-04 | 2018-07-27 | 西南交通大学 | A kind of the mountainous region cog type monorail train and rail system of ramp traction |
| CN207991827U (en) * | 2018-03-28 | 2018-10-19 | 驭势科技（浙江）有限公司 | The climbing simulating test device of adjustable slope |
| CN108867201A (en) * | 2018-08-04 | 2018-11-23 | 中铁二院工程集团有限责任公司 | A kind of ballastless track structure for heavy grade rack rails traffic system |
| CN109916751A (en) * | 2019-03-18 | 2019-06-21 | 中铁二院工程集团有限责任公司 | A kind of steep gradient ballast track bed long-term stable experiment device and test method |
| CN111504583A (en) * | 2020-04-30 | 2020-08-07 | 西南交通大学 | Rail transit model testing device |
| CN112964465A (en) * | 2021-02-06 | 2021-06-15 | 中铁二院工程集团有限责任公司 | Rack meshing test device |
-
2022
- 2022-10-14 CN CN202211257527.3A patent/CN115326441A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203772550U (en) * | 2014-03-06 | 2014-08-13 | 深圳市三源色文化传播有限公司 | Gradient adjustable pavement simulation device |
| CN207991827U (en) * | 2018-03-28 | 2018-10-19 | 驭势科技（浙江）有限公司 | The climbing simulating test device of adjustable slope |
| CN108327731A (en) * | 2018-04-04 | 2018-07-27 | 西南交通大学 | A kind of the mountainous region cog type monorail train and rail system of ramp traction |
| CN108867201A (en) * | 2018-08-04 | 2018-11-23 | 中铁二院工程集团有限责任公司 | A kind of ballastless track structure for heavy grade rack rails traffic system |
| CN109916751A (en) * | 2019-03-18 | 2019-06-21 | 中铁二院工程集团有限责任公司 | A kind of steep gradient ballast track bed long-term stable experiment device and test method |
| CN111504583A (en) * | 2020-04-30 | 2020-08-07 | 西南交通大学 | Rail transit model testing device |
| CN112964465A (en) * | 2021-02-06 | 2021-06-15 | 中铁二院工程集团有限责任公司 | Rack meshing test device |
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Application publication date: 20221111 |