CN116399273A - A runout debugging device for slip rings of collector rings - Google Patents
A runout debugging device for slip rings of collector ringsDownload PDFInfo
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- CN116399273A CN116399273ACN202310530256.2ACN202310530256ACN116399273ACN 116399273 ACN116399273 ACN 116399273ACN 202310530256 ACN202310530256 ACN 202310530256ACN 116399273 ACN116399273 ACN 116399273A
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- B07C5/34—Sorting according to other particular properties
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
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Abstract
Description
Translated fromChinese技术领域technical field
本发明涉及单轨车检测领域，尤其涉及一种用于集流环滑环的跳动调试设备。The invention relates to the field of monorail vehicle detection, in particular to a runout debugging device for slip rings of collector rings.
背景技术Background technique
集流环是一种用于检测单轨车走行轮胎压的装置，一个集流环有两个胎压表，可分别检测单轨列车左右两个轮胎的胎压。The collector ring is a device used to detect the tire pressure of the monorail train. One collector ring has two tire pressure gauges, which can respectively detect the tire pressure of the left and right tires of the monorail train.
跳动调试设备是一种用于给滑环进行跳动值进行检测并通过调整滑环下方的螺栓使其满足跳动值要求的设备。传统的跳动调试装置，需要人工根据百分表瞬间的跳动变化，凭借经验判断需调整的位置，操作人员经验值对调试效果的影响巨大，且在滑环如何与装盘保持定心的问题上一直没有很好的解决办法，导致跳动检测本身存在至较大的误差，影响了调试质量。Runout debugging equipment is a device used to detect the runout value of the slip ring and adjust the bolts under the slip ring to meet the runout value requirements. The traditional jumping debugging device needs to manually judge the position to be adjusted according to the instantaneous jumping change of the dial indicator, and the operator's experience value has a great influence on the debugging effect, and how to keep the slip ring centered with the loading plate There has been no good solution, resulting in a large error in the jump detection itself, which affects the quality of debugging.
发明内容Contents of the invention
本发明的目的是针对现有技术的缺陷，提供一种用于集流环滑环的跳动调试设备，通过转盘上集成爪卡盘的形式，实现了工件的自动对中，消除了传统仅依靠螺栓固定的方式带来的系统误差，将原本需要进行多遍不同方位的跳动调试步骤减少到一遍，极大的缩短了调试时间，提高了作业效率；并且，本设备通过生成的跳动值曲线可自动判断跳动值检测是否合格及提示需调整螺栓区域，降低人员经验值对检修效果的影响，提高了跳动调试质量。The object of the present invention is to aim at the defects of the prior art, to provide a runout debugging device for slip rings of collector rings, through the form of integrated jaw chucks on the turntable, the automatic centering of workpieces is realized, eliminating the need to rely only on the traditional The system error caused by the way of bolt fixing reduces the runout debugging steps that originally required multiple times in different directions to one time, which greatly shortens the debugging time and improves the work efficiency; moreover, the generated runout value curve of this equipment can be Automatically judge whether the runout value detection is qualified and prompt the bolt area to be adjusted, reduce the influence of personnel experience on the maintenance effect, and improve the runout debugging quality.
有鉴于此，本发明实施例提供了一种用于集流环滑环的跳动调试设备，所述滑环底部中心设有中心柱，中心柱周围设有多个螺栓，所述调试设备用于对滑环的螺栓进行跳动值检测及调试，包括操作台、转盘、加紧机构、气压回转器、同步齿轮组、旋转编码器、测微计和工控机；其中，In view of this, the embodiment of the present invention provides a runout debugging device for a slip ring of a slip ring, a center column is provided at the center of the bottom of the slip ring, and a plurality of bolts are arranged around the center column, and the debugging device is used for Detect and debug the runout value of the bolts of the slip ring, including the console, turntable, tightening mechanism, pneumatic gyrator, synchronous gear set, rotary encoder, micrometer and industrial computer; among them,
所述操作台，用于集成所述转盘、加紧机构、气压回转器、同步齿轮组、旋转编码器和测微计；said console for integrating said turntable, clamping mechanism, pneumatic gyrator, synchronous gear set, rotary encoder and micrometer;
所述转盘，设有安装槽，用于安装加紧机构；The turntable is provided with a mounting groove for mounting a tightening mechanism;
所述加紧机构，固定在所述安装槽内，包括多个卡爪，用于对中和固定集流环；The tightening mechanism is fixed in the installation groove and includes a plurality of claws for centering and fixing the collector ring;
所述气压回转器，用于为多个卡爪开合提供起源动力，包括固定端和旋转端，所述旋转端与转盘底部的输出端相连，所述转盘通过旋转端带动气压回转器同步转动，所述固定端固定在操作台上；The pneumatic gyrator is used to provide the original power for the opening and closing of multiple jaws, including a fixed end and a rotating end, the rotating end is connected to the output end at the bottom of the turntable, and the rotating end drives the air pressure rotator to rotate synchronously , the fixed end is fixed on the console;
所述同步齿轮组，包括第一同步齿轮和第二同步齿轮，所述第一同步齿轮与气压回转器的旋转端相连，第二同步齿轮与第一同步齿轮相咬合，所述转盘通过气压回转器带动第一同步齿轮同步转动，进而带动第二同步齿轮同步转动；The synchronous gear set includes a first synchronous gear and a second synchronous gear, the first synchronous gear is connected to the rotating end of the air pressure gyrator, the second synchronous gear meshes with the first synchronous gear, and the turntable is rotated by air pressure The device drives the first synchronous gear to rotate synchronously, and then drives the second synchronous gear to rotate synchronously;
所述旋转编码器，与第二同步齿轮的输出端相连，用于记录滑环转动角度数据，并上传至工控机；The rotary encoder is connected to the output end of the second synchronous gear, used to record the rotation angle data of the slip ring, and upload it to the industrial computer;
所述测微计，固定在操作台上，用于测量记录滑环跳动数据，并上传至工控机；The micrometer is fixed on the operating table for measuring and recording slip ring runout data, and uploading to the industrial computer;
所述工控机，用于根据所述滑环转动角度数据和滑环跳动值数据生成跳动值曲线，根据所述跳动值曲线进行解析，得到调试信息。The industrial computer is used to generate a runout value curve according to the slip ring rotation angle data and the slip ring runout value data, and analyze according to the runout value curve to obtain debugging information.
优选的，所述加紧机构底部设有联轴套，所述气压回转器的旋转端通过内螺纹与联轴套连接，用于实现与转盘的同步旋转。Preferably, a coupling sleeve is provided at the bottom of the tightening mechanism, and the rotating end of the pneumatic gyrator is connected to the coupling sleeve through an internal thread for synchronous rotation with the turntable.
优选的，所述操作台的底部设有固定架，用于固定所述加紧机构、气压回转器、同步齿轮组。Preferably, the bottom of the console is provided with a fixing frame for fixing the tightening mechanism, the pneumatic gyrator, and the synchronous gear set.
优选的，所述操作台的底部设有止挡板，所述气压回转器的固定端通过螺栓固定在止挡板上。Preferably, the bottom of the operating table is provided with a stop plate, and the fixed end of the pneumatic gyrator is fixed on the stop plate by bolts.
优选的，所述跳动调试设备还包括接近开关，安装在操作台上；所述转盘底部设有挡块，当所述挡块旋转至接近开关时，接近开关触发通知跳动调试设备开始记录数据。Preferably, the jump debugging device further includes a proximity switch installed on the console; a stopper is provided at the bottom of the turntable, and when the stopper rotates to the proximity switch, the proximity switch triggers and notifies the jump debugging device to start recording data.
优选的，所述卡爪由气压回转器驱动，可沿加紧机构径向向中心位置移动，从而夹持所述滑环底部的中心柱。Preferably, the claw is driven by a pneumatic gyrator, and can move radially toward the center of the tightening mechanism, so as to clamp the central column at the bottom of the slip ring.
优选的，所述卡爪与中心柱的接触面上设有多个凹槽，用于夹紧所述滑环底部的中心柱。Preferably, a plurality of grooves are provided on the contact surface between the claw and the central post for clamping the central post at the bottom of the slip ring.
优选的，所述转盘的安装槽包括多个位移槽，用于所述卡爪开合的位移。Preferably, the installation groove of the turntable includes a plurality of displacement grooves for the displacement of the opening and closing of the jaws.
优选的，在所述跳动调试设备工作时，根据滑环多个螺栓的位置信息将转盘进行区域划分；旋转所述转盘，通过所述加紧机构带动气压回转器旋转，进而带动同步齿轮组同步旋转，所述旋转编码器同步采集滑环转动角度数据，所述测微计同步采集滑环跳动数据，以转动角度数据和跳动数据分别作为横纵坐标，生成跳动值曲线，根据旋转一圈的跳动值曲线波峰波谷差值是否不大于预设值判断测试是否合格，并通过波峰所在位置的角度数据获取相对应的区域信息，根据所述区域信息得到螺栓的位置信息，并生成调试信息。Preferably, when the jumping debugging equipment is working, the turntable is divided into regions according to the position information of the multiple bolts of the slip ring; when the turntable is rotated, the pneumatic gyrator is driven to rotate through the tightening mechanism, and then the synchronous gear set is driven to rotate synchronously , the rotary encoder synchronously collects the rotation angle data of the slip ring, the micrometer synchronously collects the slip ring jump data, and uses the rotation angle data and the jump data as the horizontal and vertical coordinates respectively to generate a jump value curve, and according to the jump of one revolution Whether the difference between the peak and valley of the value curve is not greater than the preset value is used to judge whether the test is qualified, and the corresponding area information is obtained through the angle data of the peak position, and the position information of the bolt is obtained according to the area information, and debugging information is generated.
进一步优选的，所述滑环底部设有4个螺栓，以转盘底部挡块为0°位置为起点，将转盘划分为4个90°区域，每个区域对应1个螺栓。Further preferably, four bolts are provided at the bottom of the slip ring, starting from the 0° position of the bottom stopper of the turntable, the turntable is divided into four 90° areas, and each area corresponds to one bolt.
本发明实施例提供的一种用于集流环滑环的跳动调试设备，通过转盘上集成爪卡盘的形式，实现了工件的自动对中，消除了传统仅依靠螺栓固定的方式带来的系统误差，将原本需要进行多遍不同方位的跳动调试步骤减少到一遍，极大的缩短了调试时间，提高了作业效率；并且，本设备通过生成的跳动值曲线可自动判断跳动值检测是否合格及提示需调整螺栓区域，降低人员经验值对检修效果的影响，提高了跳动调试质量。The embodiment of the present invention provides a runout debugging device for slip rings of collector rings, which realizes the automatic centering of workpieces through the form of integrated claw chucks on the turntable, and eliminates the problems caused by the traditional way of only relying on bolts. The system error reduces the runout debugging steps that originally needed to be performed multiple times in different directions to one time, which greatly shortens the debugging time and improves the work efficiency; moreover, the equipment can automatically judge whether the runout value detection is qualified through the generated runout value curve And prompts that the bolt area needs to be adjusted, reducing the influence of personnel experience on the maintenance effect, and improving the quality of runout debugging.
附图说明Description of drawings
图1为本发明实施例提供的一种集流环的结构示意图；Fig. 1 is a schematic structural view of a slip ring provided by an embodiment of the present invention;
图2为本发明实施例提供的一种集流环和跳动调试设备的结构示意图之一；Fig. 2 is one of the structural schematic diagrams of a slip ring and jumping debugging equipment provided by the embodiment of the present invention;
图3为本发明实施例提供的一种集流环和跳动调试设备的结构示意图之二；Fig. 3 is the second structural schematic diagram of a slip ring and jumping debugging equipment provided by an embodiment of the present invention;
图4为本发明实施例提供的一种转盘的结构示意图；Fig. 4 is a schematic structural diagram of a turntable provided by an embodiment of the present invention;
图5为本发明实施例提供的一种加紧机构的结构示意图。Fig. 5 is a schematic structural diagram of a tightening mechanism provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
本发明实施例提供的跳动调试设备应用于集流环滑环的跳动调试，图1为本发明实施例提供的一种集流环的结构示意图，如图1所示在集流环100滑环的底部中心设有中心柱，中心柱101周围设有多个螺栓，具体而言，本跳动调试设备是用于对滑环底部多个螺栓的检测，图2、图3为本发明实施例提供的一种集流环和跳动调试设备的结构示意图，结合如图2和图3所示，本设备具体包括如下结构：操作台1、转盘2、加紧机构3、气压回转器4、同步齿轮组5、旋转编码器6、测微计7和工控机(图中未示出)，下面结合附图1至3对本实施例提供的跳动调试设备各部分结构进行具体的介绍。The run-out debugging equipment provided by the embodiment of the present invention is applied to the run-out debugging of the slip ring of the collector ring, and Fig. 1 is a schematic structural diagram of a collector ring provided by the embodiment of the present invention, as shown in Fig. There is a central column at the center of the bottom of the slip ring, and a plurality of bolts are arranged around the
操作台1，用于集成和固定转盘2、加紧机构3、气压回转器4、同步齿轮组5、旋转编码器6和测微计7，具体可以是一个操作台1面，在操作台1面上设有开口槽，用于安放加紧机构3。The
转盘2，结合图4所示，用于放置待检测的集流环100，在转盘2中心设有安装槽，用于安装加紧机构3。The
加紧机构3，可以理解为卡爪盘，结合图5所示，固定在安装槽内，包括多个卡爪31，滑设在加紧机构3上，用于对中和固定集流环100，具体而言，卡爪31由气压回转器4驱动，可沿加紧机构3径向向中心位置移动，从而夹持滑环底部的中心柱101，由此实现集流环100的固定和对中，可以理解的是，转盘2的安装槽可以包括多个位移槽，每个卡爪对应一个位移槽，用于卡爪31开合的位移，在测试时，气压回转器4驱动多个卡爪31向靠近中心方向位移，测试结束后，气压回转器4驱动多个卡爪向远离中心方向位移。在优选的实施例中，卡爪31与中心柱101的接触面上设有多个凹槽，增大卡爪31与中心柱101的摩擦力，用于夹紧滑环底部的中心柱101，以保证测试过程中的稳定性。需要说明的是，本领域技术人员可以根据需要对卡爪31的数量进行选择和设定，在本实施例中，卡爪31的数量优选为3个，且3个卡爪31的间距相等，从而实现对滑环底部中心柱101的夹持和对中。The
气压回转器4，能够实现旋转进气，用于为多个卡爪31开合提供起源动力，包括固定端和旋转端，气压回转器4的旋转端与转盘2底部的输出端相连，转盘2通过旋转端带动气压回转器4同步转动，具体的，加紧机构3底部设有联轴套，气压回转器4的旋转端通过内螺纹与联轴套连接，用于实现与转盘2的同步旋转。气压回转器4的固定端固定在操作台1上，优选的，操作台1的底部设有止挡板12，气压回转器4的固定端通过螺栓固定在止挡板12上，从而保证气压回转器4的气管不扭曲。
同步齿轮组5，包括第一同步齿轮51和第二同步齿轮52，两个齿轮大小相同，且齿数相同，第一同步齿轮51的中心轴与气压回转器4的旋转端相连，第二同步齿轮52与第一同步齿轮51相咬合，由此，在转盘2转动时，转盘2通过气压回转器4带动第一同步齿轮51同步转动，进而带动第二同步齿轮52同步转动。The
在优选的实施例中，为了实现部件的固定，操作台1的底部设有固定架11，用于固定加紧机构3、气压回转器4、同步齿轮组5，具体而言，加紧机构3、气压回转器4、同步齿轮组5的固定端均可固定在固定架11上，以保证设备整体结构的稳定性。可选的，上述止挡板12也可以固定在固定架11上，由此实现气压回转器4在固定架11上的固定。In a preferred embodiment, in order to realize the fixation of the parts, the bottom of the
旋转编码器6，用于记录滑环转动角度数据，与第二同步齿轮52的输出端相连，具体与第二同步齿轮52的中心轴相连，由此实现旋转编码器6与滑环的同步转动，当旋转编码器6转动时自动记录滑环转动角度数据，并上传至工控机。The
测微计7，固定在操作台1上，测微计7具体可以通过磁性表盘固定在操作台1上，用于测量记录滑环跳动数据，在测试时，测微计7触头与滑环完全接触，由此记录滑环跳动数据，并上传至工控机。The
工控机，与接收旋转编码器6和测微计7电连接，用于接收接收旋转编码器6和测微计7的检测数据，并根据滑环转动角度数据和滑环跳动值数据生成跳动值曲线，根据跳动值曲线进行解析，得到调试信息。具体而言，在跳动调试设备工作时，根据滑环多个螺栓的位置信息将转盘2进行区域划分；旋转转盘2，通过加紧机构3带动气压回转器4旋转，进而带动同步齿轮组5同步旋转，旋转编码器6同步采集滑环转动角度数据，测微计7同步采集滑环跳动数据，以转动角度数据和跳动数据分别作为横纵坐标，生成跳动值曲线，根据旋转一圈的跳动值曲线波峰波谷差值是否不大于预设值判断测试是否合格，如果跳动值曲线波峰波谷差值小于预设值，则认定测试合格，如果跳动值曲线波峰波谷差值不小于预设值，则测试认定不合格，当认定不合格时，并通过波峰所在位置的角度数据获取相对应的区域信息，根据区域信息得到螺栓的位置信息，由此得到需要调整的螺栓，根据需要调整的螺栓并生成调试信息，测试人员根据调试信息对要调整的螺栓进行调整。需要说明的是，本领域技术人员可以根据需要对预设值进行设定，在本例中预设值优选为0.2mm。The industrial computer is electrically connected with the receiving
在优选的实施例中，跳动调试设备还包括接近开关8，安装在操作台1上，并设置在转盘2圆周位置，转盘2底部设有挡块，当挡块旋转至接近开关8时，接近开关8触发通知跳动调试设备开始记录数据。In a preferred embodiment, the beating debugging equipment also includes a
在对本实施例提供的用于集流环100滑环的跳动调试设备结构了解的基础上，下面以一个具体的实施例对其工作过程进行描述，在本实施例中，滑环底部设有4个螺栓，以转盘2底部挡块为0°位置为起点，将转盘2划分为4个90°区域，每个区域对应1个螺栓。On the basis of understanding the structure of the jumping debugging equipment used for the slip ring of the
试验开始前，在跳动调试设备上安装固定集流环100，调整测微计7位置，使测微计7触头与滑环完全接触。Before the test starts, install and fix the
按下实验按钮，按顺时针转动转盘2，当挡块旋转至接近开关8处，系统触发开始记录设备采集数据，继续顺时针转动转盘2，由此通过加紧机构3带动气压回转器4旋转，进而带动同步齿轮组5同步旋转，旋转编码器6同步采集滑环转动角度数据，测微计7同步采集滑环跳动数据，以转动角度数据和跳动数据分别作为横纵坐标，生成跳动值曲线。Press the test button and turn the
根据旋转一圈的跳动值曲线波峰波谷差值是否不大于预设值(≤0.2mm)判断测试是否合格，不合格情况下，系统将提供需调整螺栓位置，并通过波峰所在位置的角度数值在哪个区域判断该调整哪颗螺栓，并生成调试信息，由人工进行调整，调整后，再次通过测试进行复核。Judging whether the test is qualified according to whether the peak-to-valley difference of the beating value curve of one rotation is not greater than the preset value (≤0.2mm). Which area judges which bolt should be adjusted, and generates debugging information, which is adjusted manually. After adjustment, it is checked again by testing.
本发明实施例提供的一种用于集流环滑环的跳动调试设备，与传统方式相比，本设备通过转盘上集成爪卡盘的形式，实现了工件的自动对中，消除了传统仅依靠螺栓固定的方式带来的系统误差，将原本需要进行多遍不同方位的跳动调试步骤减少到一遍，极大的缩短了调试时间，提高了作业效率。并且，与传统的通过百分表观察，人工判断的方式相比，本设备通过生成的跳动值曲线可自动判断跳动值检测是否合格及提示需调整螺栓区域，降低人员经验值对检修效果的影响，提高了跳动调试质量。The embodiment of the present invention provides a runout debugging device for slip rings of collector rings. Compared with the traditional method, this device realizes the automatic centering of the workpiece through the integrated claw chuck on the turntable, eliminating the traditional Relying on the system error caused by the way of bolt fixing reduces the jumping debugging steps that originally need to be performed multiple times in different directions to one time, which greatly shortens the debugging time and improves the working efficiency. Moreover, compared with the traditional way of observing and manually judging through the dial gauge, the device can automatically judge whether the runout value detection is qualified through the generated runout value curve and prompt that the bolt area needs to be adjusted, reducing the influence of personnel experience on the maintenance effect , improved bounce debugging quality.
在本发明中，术语“多个”指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installation", "connection", "connection", "fixed" and other terms should be interpreted in a broad sense, for example, "connection" can be fixed connection, detachable connection, or integral connection; "connection" can be directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
本发明的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本发明的限制。In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear" etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation of the present invention.
在本说明书中的描述中，术语“一个具体的实施例”、“一些实施例”、“一个实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表达不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description in this specification, descriptions of the terms "a specific embodiment", "some embodiments", "one embodiment" and the like mean that specific features, structures, materials or characteristics described in connection with the embodiment or example include In at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. Protection scope, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.
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| US20020178594A1 (en)* | 2000-04-21 | 2002-12-05 | Akira Hirano | Method for measuring side run-out of wheel |
| CN115839644A (en)* | 2023-02-15 | 2023-03-24 | 广东优社动力科技有限公司 | Circumference pulsation measuring instrument |
| CN115979094A (en)* | 2022-12-23 | 2023-04-18 | 遂宁伯特利汽车安全系统有限公司 | Device and method for testing jumping quantity of brake disc assembly with rear claw |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020178594A1 (en)* | 2000-04-21 | 2002-12-05 | Akira Hirano | Method for measuring side run-out of wheel |
| CN115979094A (en)* | 2022-12-23 | 2023-04-18 | 遂宁伯特利汽车安全系统有限公司 | Device and method for testing jumping quantity of brake disc assembly with rear claw |
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