WO2014206040A1 - 一种模拟车轮加压的测试装置 - Google Patents

一种模拟车轮加压的测试装置 Download PDF

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Publication number
WO2014206040A1
WO2014206040A1 PCT/CN2013/089938 CN2013089938W WO2014206040A1 WO 2014206040 A1 WO2014206040 A1 WO 2014206040A1 CN 2013089938 W CN2013089938 W CN 2013089938W WO 2014206040 A1 WO2014206040 A1 WO 2014206040A1
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WIPO (PCT)
Prior art keywords
jack
bracket
wheel
push rod
pressure sensor
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PCT/CN2013/089938
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English (en)
French (fr)
Inventor
谢小鹏
吴增彬
李光乐
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华南理工大学
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Application filed by 华南理工大学 filed Critical 华南理工大学
Publication of WO2014206040A1 publication Critical patent/WO2014206040A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/013—Wheels

Definitions

  • the invention relates to the field of wheel wheel load measurement, and more particularly to a test device for simulating wheel pressurization.
  • Wheel load is a very important factor in the operation of cranes and other locomotives.
  • it is necessary to calculate the various parameters of the wheels and cranes by calculating the wheel pressure.
  • Regarding the test of wheel pressure it is necessary to determine the reasonable value of the wheel load.
  • research and research needs to study the influence of wheel pressure on the performance of the locomotive.
  • the object of the present invention is to overcome the deficiencies of the prior art described above, and to provide a test device for simulating wheel pressurization with simple structure and accurate wheel load data.
  • a test device for simulating wheel pressurization comprising a bracket and a jack, a support seat for fixing a jack cylinder is arranged at an upper end of the bracket, and a bottom plate is arranged at a lower end of the bracket; a push rod of the jack is placed in the bracket, and the end of the push rod is A pressure sensor, a guide mechanism, and a clamping mechanism for the wheel are sequentially disposed.
  • the guiding mechanism includes a guide plate and a linear slide for guiding the guide plate, and the linear slide is disposed on the inner side of the bracket.
  • the clamping mechanism is connected to the jack of the jack by a flange.
  • An upper reinforcing rib is welded under the support base and on the inner side of the bracket.
  • the lower side of the bottom plate and the inner side of the bracket are also provided with a lower reinforcing rib plate.
  • the present invention has at least the following advantages and effects:
  • the jack applies different pressure to the wheel, and the pressure sensor accurately reflects the running condition of the wheel under various working conditions;
  • the jack is used as the pressure component, and the pressing process is slow, which ensures that the pressing pressure value is stable.
  • the guiding mechanism adopts the guiding plate and the linear sliding rail to match, so that the push rod of the jack does not have the left and right axis swing problem of the push rod during the pressing process, so that the steering rod and the linear sliding rail cooperate with each other, and the friction coefficient is small. Therefore, the stability of the slip can be well ensured and the frictional resistance of the slip can be reduced.
  • the upper rib plate and the lower rib plate further enhance the bearing capacity.
  • the test device has a simple structure, can well meet the test requirements of the laboratory, and can provide an effective simulated downforce for the depression of the wheel.
  • the invention has the advantages of compact structure, small volume, low cost and convenient operation.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic side view of the structure of FIG. 1.
  • the invention relates to a test device for simulating wheel pressurization, comprising a bracket 6 and a jack 1.
  • a support base 4 for fixing a jack 1 cylinder is arranged at an upper end of the bracket 6, and a bottom plate 13 is provided at a lower end of the bracket 6;
  • the rod 2 is placed in the holder 6, and the end of the push rod 2 is provided with a pressure sensor 7, a guide mechanism, and a clamping mechanism 10 of the wheel 11 in this order.
  • the jack 1 adopts an electro-hydraulic jack, and its push rod 2 stroke is at least 400 mm.
  • the guiding mechanism comprises a guide plate 8 and a linear slide 5 for guiding the guide plate 8, the linear slide 5 being disposed inside the bracket 6.
  • the guiding mechanism makes the push rod 2 of the jack 1 not have the left and right axis swing problem of the push rod 2 during the pressing process, so that the tension rod 2 is more stable; the guide plate and the linear sliding rail cooperate with each other, and the friction coefficient is small, which can ensure the sliding down well. Stability and reduced frictional resistance to slip.
  • the clamping mechanism 10 is connected to the push rod 2 of the jack 1 via a flange 9.
  • An upper reinforcing rib 3 is welded to the inside of the bracket 6 below the support base 4; the bottom plate 13 is placed upward, and the lower rib 12 is further provided on the inner side of the bracket 6.
  • the working process of the device is as follows: the wheel 11 to be tested is pre-mounted and fixed on the clamping mechanism 10. With the activation of the jack 1, the wheel 11 runs downward with the push rod 2, and when the wheel 11 is stopped by the bottom plate 13, The thrust of the push rod 2 acts on the wheel 11, and the pressure sensor 7 is pressed by the push rod 2 to accurately measure the pressure, which is the wheel load of the wheel 11.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

一种模拟车轮加压的测试装置，包括支架（6）、千斤顶（1），在支架（6）的上端设有用于固定千斤顶（1）缸体的支撑座（4），支架（6）的下端设有底板（13）；千斤顶（1）的推杆（2）置于支架（6）内，推杆（2）的末端依次设置有压力传感器（7）、导向机构、车轮的夹持机构（10）。通过千斤顶（1）、压力传感器（7）和车轮（11）的夹持机构（10）的巧妙结合，千斤顶（1）对车轮（11）施加不同的压力，通过压力传感器（7）准确的反应车轮（11）在多种工况下车的运行情况；导向机构采用导向板（8）和直线滑轨（5）配合，使千斤顶（1）的推杆（2）在下压过程中不会出现推杆左右轴摆问题，使其更加稳定；导向板（8）和直线滑轨（5）相互配合，其摩擦系数很小，因此，能很好的保证下滑的稳定性及减少下滑的摩擦阻力。该装置结构紧凑、体积小、造价低廉、操作简便易行。

Description

一种模拟车轮加压的测试装置
技术领域
本发明涉及车轮轮载力测量领域，尤其涉及一种模拟车轮加压的测试装置。
背景技术
起重机等机车在运行过程中，轮载是一个很重要的因素，一般设计起重机的时候，需要通过计算轮压来设计车轮及起重机的各种参数，同时，在制造实务机车的前，都需要做关于轮压的试验，来确定这车轮轮载的合理值，同时，科研研究中还需要研究轮压对机车性能的影响程度等等。　　
发明内容
本发明目的在于克服上述现有技术存在的不足，提供一种结构简单、轮载数据精准的模拟车轮加压的测试装置。
为解决上述技术问题，本发明通过下述技术方案实现：
一种模拟车轮加压的测试装置，包括支架、千斤顶，在支架的上端设有用于固定千斤顶缸体的支撑座，支架的下端设有底板；千斤顶的推杆置于支架内，推杆的末端依次设置有压力传感器、导向机构、车轮的夹持机构。
导向机构包括导向板和用于对导向板进行导向的直线滑轨，该直线滑轨设置于支架的内侧。
夹持机构通过法兰与千斤顶的推杆连接。
在支撑座的下方、支架的内侧焊接有上加强筋板。
底板的上放、支架的内侧还设有下加强筋板。
与现有技术相比，本发明至少具有如下优点及效果：
通过千斤顶、压力传感器和车轮的夹持机构的巧妙结合，千斤顶对车轮施加不同的压力，通过压力传感器准确的反应车轮在多种工况下车的运行情况；
采用千斤顶作为压力部件，其下压过程缓慢，保证了下压压力值稳定。
导向机构采用导向板和直线滑轨配合，使千斤顶的推杆在下压过程中不会出现推杆左右轴摆问题，使其更加稳定；导向板和直线滑轨相互配合，其摩擦系数很小，因此，能很好的保证下滑的稳定性及减少下滑的摩擦阻力。
上加强筋板和下加强筋板进一步增强了承载力。
本测试装置结构简单，能很好的满足实验室的试验要求，能为车轮的下压提供有效的模拟下压力。
本发明结构紧凑、体积小、造价低廉、操作简便易行。
附图说明
图1为本发明结构示意图。
图2为图1侧视结构示意图。
具体实施方式
下面结合具体实施例对本发明作进一步具体详细描述。
实施例
如图所示。本发明一种模拟车轮加压的测试装置，包括支架6、千斤顶1，在支架6的上端设有用于固定千斤顶1缸体的支撑座4，支架6的下端设有底板13；千斤顶1的推杆2置于支架6内，推杆2的末端依次设置有压力传感器7、导向机构、车轮11的夹持机构10。千斤顶1采用电动液压千斤顶，其推杆2行程至少达到400mm。
导向机构包括导向板8和用于对导向板8进行导向的直线滑轨5，该直线滑轨5设置于支架6的内侧。导向机构使千斤顶1的推杆2在下压过程中不会出现推杆2左右轴摆问题，使其更加稳定；导向板和直线滑轨相互配合，其摩擦系数很小，能很好的保证下滑的稳定性及减少下滑的摩擦阻力。
夹持机构10通过法兰9与千斤顶1的推杆2连接。
在支撑座4的下方、支架6的内侧焊接有上加强筋板3；底板13的上放、支架6的内侧还设有下加强筋板12。
本装置工作过程如下：将待实验的车轮11事先安装固定在夹持机构10上，随着千斤顶1的启动，车轮11随着推杆2向下运行，当车轮11受到底板13的止挡后，推杆2的推力作用于车轮11上，压力传感器7受到推杆2的挤压，从而精确测量出压力，该压力即是车轮11的轮载力。
推杆2下行的行程越大，对车轮11的挤压力度越大。
本发明的实施方式并不受上述实施例的限制，其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本发明的保护范围之内。

Claims (5)

  1. 一种模拟车轮加压的测试装置，其特征在于，包括支架、千斤顶，在支架的上端设有用于固定千斤顶缸体的支撑座，支架的下端设有底板；千斤顶的推杆置于支架内，推杆的末端依次设置有压力传感器、导向机构、车轮的夹持机构。
  2. 如权利要求1所述的模拟车轮加压的测试装置，其特征在于，导向机构包括导向板和用于对导向板进行导向的直线滑轨，该直线滑轨设置于支架的内侧。
  3. 如权利要求1所述的模拟车轮加压的测试装置，其特征在于，夹持机构通过法兰与千斤顶的推杆连接。
  4. 如权利要求1所述的模拟车轮加压的测试装置，其特征在于，在支撑座的下方、支架的内侧焊接有上加强筋板。
  5. 如权利要求1所述的模拟车轮加压的测试装置，其特征在于，底板的上放、支架的内侧还设有下加强筋板。
PCT/CN2013/089938 2013-06-25 2013-12-19 一种模拟车轮加压的测试装置 WO2014206040A1 (zh)

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CN113176147A (zh) * 2021-05-12 2021-07-27 河南省林晓科技开发有限公司 一种动态轮压测试疏散平台板装置及方法

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CN103323266A (zh) * 2013-06-25 2013-09-25 华南理工大学 一种模拟车轮加压的测试装置
CN105675312B (zh) * 2016-01-25 2019-01-01 中国汽车技术研究中心 一种模拟整车状态下车轮力传递函数测试方法及装置

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