CN201358474Y - High-speed railway dynamic load field simulation test device - Google Patents
High-speed railway dynamic load field simulation test device Download PDFInfo
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- CN201358474Y CN201358474Y CNU2009200789360U CN200920078936U CN201358474Y CN 201358474 Y CN201358474 Y CN 201358474Y CN U2009200789360 U CNU2009200789360 U CN U2009200789360U CN 200920078936 U CN200920078936 U CN 200920078936U CN 201358474 Y CN201358474 Y CN 201358474Y
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000004088 simulation Methods 0.000 title claims abstract description 11
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 description 10
- 239000000758 substrate Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
一种高速铁路动荷载现场模拟试验装置，其组成为：变频调速的电动机(7)固定安装在电动机安装台车(8)上，电动机(7)轴通过万向联轴器(3)与增速器(2)一侧的输入轴相连，增速器(2)另一侧的等高的前、后输出轴(21、22)连接有相同的偏心块(4)，且前、后输出轴(21、22)的转速相等、转动方向相反，增速器(2)固定于振动架(1)上表面的中心。该系统激振力大、激振频率高、可靠性高，安装调试方便，尤其适用于高速铁路动荷载现场模拟试验。
A high-speed railway dynamic load field simulation test device, which is composed of: a motor (7) with variable frequency speed regulation is fixedly installed on a motor installation trolley (8), and the shaft of the motor (7) is connected to the motor through a universal coupling (3) The input shaft on one side of the speed increaser (2) is connected, and the front and rear output shafts (21, 22) of the same height on the other side of the speed increaser (2) are connected with the same eccentric block (4), and the front and rear The rotational speeds of the output shafts (21, 22) are equal and the directions of rotation are opposite, and the speed increaser (2) is fixed on the center of the upper surface of the vibrating frame (1). The system has large excitation force, high excitation frequency, high reliability, convenient installation and debugging, and is especially suitable for high-speed railway dynamic load field simulation tests.
Description
Technical field
The utility model relates to a kind of live loading of high-speed railway in-site modeling experimental rig.
Background technology
At present, the China Express Railway construction has entered great development period.High-speed railway is because of speed of service height, and the dynamic property and the long-term functional performance of its line construction thing such as roadbed, bridge, tunnel, pile foundation etc. proposed high-level requirement.Before the line construction thing puts into effect, need by dynamic load in-site modeling experimental rig to works under the dynamic load effect, carry out on-the-spot dynamic testing, obtain technical data, the sinking characteristic of measurement circuit, clear and definite its power performance, the investigation works sinks to whether meeting the maintenance mode of high-speed railway etc., to guarantee the safe operation of high-speed railway.Existing dynamic load in-site modeling experimental rig, Frequency Adjustable amplitude modulation SBZ30 dynamic exciting test machine as railway research institute's development, this testing machine with concrete block as counterweight, and by built-in fitting works is connected with testing machine, directly connect eccentric stiffener by motor counterweight and works thereof are produced up-down vibration power.Its weak point is: oscillating component directly links to each other with motor, also together vibration of motor in the process of the test, and electrical machinery life is greatly affected, and system reliability is poor; Concrete block volume as counterweight is big, installs, change poles inconvenience more; Be subjected to the restriction of the dynamo-electric acc power of exciting, the exciting force deficiency, differ more with real railway dynamic loading, and its excited frequency is on the low side, can not satisfy the needs of railway prototype dynamic testing, especially the high-speed railway fast for speed, that dynamic loading is big, existing in-situ modeling test system for live loading are difficult to adapt to especially.
Summary of the invention
The purpose of this utility model just provides a kind of live loading of high-speed railway in-site modeling experimental rig, and this system's exciting force is big, excited frequency is high, reliability is high, and Installation and Debugging are convenient, can satisfy live loading of high-speed railway in-site modeling test.
The utility model is realized its goal of the invention, the technical scheme that is adopted is: a kind of live loading of high-speed railway in-site modeling experimental rig, it consists of: the motor of frequency control is fixedly mounted on the motor mounting chassis, motor reel links to each other by the power shaft of Hooks coupling universal coupling with speed increaser one side, the contour forward and backward output axle key of speed increaser opposite side connects identical forward and backward eccentric block, and the rotating speed of forward and backward output shaft equates, direction of rotation, and speed increaser is fixed in the center of vibrating grid upper surface.
The using method and the operating principle of this pilot system are: earlier the built-in fitting on the works such as roadbed by bolt and railway scene of motor mounting chassis and vibrating grid, bridge, tunnel, pile foundation is fixedly connected, can begins to test.In the process of the test, motor drives speed increaser by Hooks coupling universal coupling and rotates, and two output shafts of speed increaser drive former and later two contour output shafts again and rotate, thereby two identical eccentric blocks that are connected on the output shaft are also rotated.Because the shape and the position of two eccentric blocks are identical, the rotational speed that direction is opposite, therefore by two active forces to works that eccentric block produced, equal and opposite in direction and direction is opposite in the horizontal direction is so to make a concerted effort be zero; Power in vertical direction then is the superposition of two power that eccentric block produced, a synthetic vertical exciting force that changes by sinusoidal rule, thus the dynamic load of having realized the on-the-spot works of railway is tested.
Compared with prior art, the beneficial effects of the utility model are:
By Hooks coupling universal coupling vibrating mass (eccentric block) is connected with driver unit (motor), both made the rotation of motor can pass to eccentric block, also make simultaneously the two can take place relative about, left and right displacement, therefore when the vibrating mass vertical vibration, motor can be not thereupon high vibration together, prolong the application life of motor greatly, and improve the reliability of pilot system, solved transmission of power and dynamical stability problem under the high speed conditions.
And because motor vibration when work is little, therefore can select the higher frequency control motor of the stronger frequency of power for use,, improve exciting force of the present utility model and excited frequency and adjustable range thereof as motive power outputting apparatus; Also can change the exciting force size by regulating eccentric block quality and eccentric throw and vibrating grid deadweight etc., the range of choice of its exciting force and excited frequency is increased greatly, thereby the utility model can produce the strong load of satisfactory high frequency on the works surface, applicable to the dynamic load simulated test at different railways scene, be particularly useful for the dynamic load test of high-speed overload railway.
The connected mode of Hooks coupling universal coupling has also reduced the precision that is connected between vibrating mass and driver unit, and is on-the-spot easy for installation.
Above-mentioned eccentric block is made up of eccentric block matrix and arc counterweight, and wherein the eccentric block matrix is made of with the fan-shaped substrate that is connected in bottom the key branch sleeve on top, and arc counterweight bolt is connected on the described connection substrate.
Above-mentioned arc counterweight is a plurality of, be threadedly connected on the connection substrate of eccentric block matrix, and the arc counterweight has adaptive keyway each other.
During use, the key branch sleeve of eccentric block is connected on the output shaft of speed increaser, and arc counterweight bolt is connected on the counterweight junction plate, can adopt different arc counterweight and combination thereof, thereby realizes different exciting forces, to satisfy the requirement of different tests operating mode.
Owing to the mutual adaptive keyway of arc counterweight, can avoid the arc counterweight that skew and friction take place each other during work, the reliability and the application life of having improved the arc counterweight, and the rotational stability of enhancing system.
The connection substrate of above-mentioned eccentric block matrix is connected in the middle part of key branch sleeve axis, and a plurality of arc counterweight bolt are in the two sides that connects substrate.
Can prolong the stressed even of eccentric block matrix branch sleeve like this, prolong its application life.
On the above-mentioned vibrating grid, bolt has the counterweight of the superimposed formation of steel plate.Can further increase the exciting force of vibrating mass like this, and owing to for steel plate is formed by stacking, compare with the counterweight that available coagulation soil constitutes, the size of its counterweight can make up arbitrarily, and its easy installation and removal.
Above-mentioned speed increaser is sealed in the speed increaser shell, and the speed increaser shell links to each other with the circulating lubricating cooling system by the oil inlet pipe on top and the flowline of bottom.Realized cooling and lubricating problem like this, guaranteed the safety and steady operation of speed increaser, thereby the utility model device can long-time continuous be moved, satisfied of the requirement of simulation bullet train the long-term dynamic load function of line construction thing to the speed increaser rotating part.
Be fixed with the protective screening that eccentric block is covered on the above-mentioned vibrating grid.Can prevent eccentric block contingency slippage in running like this, damage accident, guarantee safety.
Below in conjunction with accompanying drawing and concrete embodiment the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of facing of the utility model embodiment;
Fig. 2 removes left TV structure schematic diagram behind counterweight and the protective screening for the utility model embodiment.
Fig. 3 is the structural representation of the eccentric block matrix of the utility model embodiment.
Fig. 4 analyses and observe enlarged diagram for the side-looking of the eccentric block that 7 pairs of arc counterweights are installed of the utility model embodiment.
The specific embodiment
Embodiment
Fig. 1, Fig. 2 illustrate, a kind of specific embodiment of the present utility model is: a kind of live loading of high-speed railway in-site modeling experimental rig, it consists of: the motor 7 of frequency control is fixedly mounted on the motor mounting chassis 8,7 on motor passes through Hooks coupling universal coupling 3 and links to each other with the power shaft of speed increaser 2 one sides, the contour forward and backward output shaft 21,22 of speed increaser 2 opposite sides is connected with identical eccentric block 4, and the rotating speed of forward and backward output shaft 21,22 equates, direction of rotation, and speed increaser 2 is fixed in the center of vibrating grid 1 upper surface.
Fig. 3, Fig. 4 illustrate, and eccentric block 4 is made up of eccentric block matrix 41 and arc counterweight 42, and wherein eccentric block matrix 41 is made of with the fan-shaped substrate 412 that is connected in bottom the key branch sleeve 411 on top, and arc counterweight 42 bolts are connected on the counterweight junction plate 412.
Fig. 4 illustrates, and arc counterweight 42 is a plurality of, all be threadedly connected to and the connection substrate 412 of eccentric block matrix on, and arc counterweight 42 has adaptive keyway each other.The connection substrate 412 of eccentric block matrix is connected in the middle part of key branch sleeve 411 axis, and a plurality of arc counterweight 42 bolt are in the two sides that connects basic slope 412.As shown in Figure 4, this example has 7 pairs of different arc bar codes 42, and bolt is in the two sides that connects basic slope 412 in couples.
Fig. 1 illustrates, and on the vibrating grid 1, bolt has the counterweight 7 of the superimposed formation of steel plate.Speed increaser 2 is sealed in the speed increaser shell 23, and speed increaser shell 23 links to each other with the circulating lubricating cooling system by the oil inlet pipe on top and the flowline of bottom.Be fixed with the protective screening 81 that eccentric block 4 is covered on the vibrating grid 1.
During enforcement, speed increaser of the present utility model can adopt existing various speed increaser, 1: 2 speed increaser 2 as shown in Figure 1, this speed increaser 2 by the master gear 10 that links to each other with power shaft and with the front gear 11 and the tumbler gear 13 of gear, tumbler gear 13 meshes with backgear 12 again, and the structure of forward and backward gear 11,12 and tumbler gear 13 is identical.Two eccentric blocks 4 link to each other with the axle of front and back gear 11,12 respectively.Can make two eccentric block 4 rotating speeds identical like this, direction of rotation.
Obviously, the various bolts that the utility model adopted should be high-strength bolt, and answer the cushioning spring washer on the bolt, solid and reliable with guarantee test system connecting portion.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200789360U CN201358474Y (en) | 2009-02-05 | 2009-02-05 | High-speed railway dynamic load field simulation test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200789360U CN201358474Y (en) | 2009-02-05 | 2009-02-05 | High-speed railway dynamic load field simulation test device |
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| CN201358474Y true CN201358474Y (en) | 2009-12-09 |
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| CNU2009200789360U Expired - Lifetime CN201358474Y (en) | 2009-02-05 | 2009-02-05 | High-speed railway dynamic load field simulation test device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787716A (en) * | 2010-03-10 | 2010-07-28 | 王军 | Model test apparatus for studying dynamic response and long-term settlement law of high-speed railway |
| CN102109419A (en) * | 2010-12-18 | 2011-06-29 | 浙江大学 | Loading simulation system of running load of high-speed railway train |
| CN101465575B (en) * | 2009-01-21 | 2011-07-27 | 西南交通大学 | In-situ simulation test system for live loading of high-speed railway |
| CN108680325A (en) * | 2018-05-25 | 2018-10-19 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The mechanical vibration exciter of low frequency big load |
| CN110398417A (en) * | 2019-08-08 | 2019-11-01 | 西南交通大学 | A device for simulating train load in on-site loading test of railway subgrade |
-
2009
- 2009-02-05 CN CNU2009200789360U patent/CN201358474Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465575B (en) * | 2009-01-21 | 2011-07-27 | 西南交通大学 | In-situ simulation test system for live loading of high-speed railway |
| CN101787716A (en) * | 2010-03-10 | 2010-07-28 | 王军 | Model test apparatus for studying dynamic response and long-term settlement law of high-speed railway |
| CN101787716B (en) * | 2010-03-10 | 2011-04-13 | 温州大学 | Model test apparatus for studying dynamic response and long-term settlement law of high-speed railway |
| CN102109419A (en) * | 2010-12-18 | 2011-06-29 | 浙江大学 | Loading simulation system of running load of high-speed railway train |
| CN102109419B (en) * | 2010-12-18 | 2013-04-03 | 浙江大学 | Loading simulation system of running load of high-speed railway train |
| CN108680325A (en) * | 2018-05-25 | 2018-10-19 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The mechanical vibration exciter of low frequency big load |
| CN110398417A (en) * | 2019-08-08 | 2019-11-01 | 西南交通大学 | A device for simulating train load in on-site loading test of railway subgrade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091209 Effective date of abandoning: 20090205 |