WO2017096703A1 - 一种密贴检查器 - Google Patents

一种密贴检查器 Download PDF

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Publication number
WO2017096703A1
WO2017096703A1 PCT/CN2016/072497 CN2016072497W WO2017096703A1 WO 2017096703 A1 WO2017096703 A1 WO 2017096703A1 CN 2016072497 W CN2016072497 W CN 2016072497W WO 2017096703 A1 WO2017096703 A1 WO 2017096703A1
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WO
WIPO (PCT)
Prior art keywords
rod
groove
guide sleeve
piece
left guide
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PCT/CN2016/072497
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English (en)
French (fr)
Inventor
张辉
杨晓刚
王晓琪
赵铁路
杜元筹
李德平
华淑珍
Original Assignee
西安全路通号器材研究有限公司
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Application filed by 西安全路通号器材研究有限公司 filed Critical 西安全路通号器材研究有限公司
Priority to MYPI2018700080A priority Critical patent/MY192662A/en
Priority to RU2018103107U priority patent/RU180624U1/ru
Publication of WO2017096703A1 publication Critical patent/WO2017096703A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
    • B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
    • B61L7/08—Circuitry
    • B61L7/10—Circuitry for light signals, e.g. for supervision, back-signalling

Definitions

  • the utility model belongs to the technical field of a close-fitting inspector, in particular to a close-fitting inspector indicating that the rod is circular.
  • the name of the Sticker Inspector has been a long time source. Originally used to check the state of the ballast, and later check the state of the ballast. According to the development needs of the railway, the function of the inspector is defined as checking the close and repelling state between the tow points.
  • the existing JM-A type intimate inspector can only check the adhesion state of one of the tip rails. Therefore, two sticking inspectors are required for each of the two rails of the turnout, and are respectively disposed on both sides.
  • the contact system adopts a circular arc contact, and the movable contact shaft is connected with a adjusting plate, a moving contact group and a turning arm through a spline.
  • the arm When the lever is in place, the arm is quickly turned on by the pull tab and the tension spring.
  • the start of the on-chip roller starts to contact with the inclined surface on the display rod, indicating that the rod moves horizontally, and the roller on the starter sheet contacts the plane in the slot on the display rod, and the movable contact group can be switched to the middle position, reliably The cutoff indicates that both the representation and the repelling contact are disconnected.
  • the movable contact group can continue to switch until the repulsive contact of the contact group is turned on.
  • the existing close-inspector has many advantages in checking the close-contact state or the detachment state of the ballast, there are also some problems.
  • the resistance of the contact group is large, and the jamming phenomenon occurs occasionally during the conversion process, followed by Since the indicating rod is a movable rod, it will protrude outside the bottom case, which causes the waterproof sealing effect inside the bottom case to be poor. Once the water enters the inside of the bottom case, it is easy to damage the internal components and affect the use of the close-inspector.
  • the purpose of the utility model is to overcome the problems of poor sealing effect and jamming phenomenon of the contact seat in the prior art.
  • the present invention provides a close-fitting inspector comprising a bottom case, and a display rod extending through the bottom case and extending axially along the bottom case, the left and right ends of the display bar being respectively provided with a left guide a sleeve, a right guide sleeve, the left guide sleeve and the right guide sleeve are respectively fixedly connected to the left and right end portions of the bottom shell; the display rod can be extended and contracted along the axial direction of the left guide sleeve;
  • the utility model further includes a starting piece, a roller and a moving contact, wherein the moving contact shaft is provided with a starting piece, the starting piece is provided with a roller, and the moving contact is matched with the indicating rod by the starting piece and the roller, and the indicating rod is a Root, the indicating rod has a groove, the groove is stepped, and has a slope on one side of the groove, and the groove is divided into several parallel planes from the top surface of the rod to the bottom surface of the groove, the concave on the rod
  • the slot is provided with a quick-moving piece, and the quick-moving piece has a step formed by the inclined surface, and the inclined surface on the quick-moving piece respectively corresponds to the inclined surface on the groove on the rod; the quick-moving piece and the indicating rod are arranged Connected device;
  • the connecting device between the quick acting piece and the indicating rod is a spring, and the inclined surface on one side of the groove on the rod is two layers, and the two inclined surfaces divide the groove from the top surface of the display rod to the bottom surface of the groove.
  • the upper, middle and lower parallel planes, the inclined surface on the quick-moving piece is also two layers, the left half of the display rod from the left guide sleeve is circular, and the inner hole of the left guide sleeve It is circular so as to indicate that the left half of the rod is axially stretched along the left guide sleeve.
  • the utility model has the beneficial effects that the adhesive inspection device provided by the utility model eliminates the surface friction during the conversion process of the contact group by the flange bearing, reduces the movement resistance of the contact group assembly, and eliminates the occasional jamming phenomenon of the contact group. Improve the reliability and stability of the system; improve the structure of the splined cushion sleeve, increase the axial positioning, prevent the axial movement of the contact group parts caused by the machining error, ensure the pressure of the joints of the left and right contacts, and the joint and the bottom of the joint A flat key is arranged on the mating surface of the shell to realize the positioning of the joint seat, and the mounting precision of the system is extremely high; the sealing rod and the guide belt are improved by the improved indicating rod, and the sealing effect is enhanced and enhanced.
  • the waterproof sealing prevents the indicating rod from bringing rainwater into the bottom shell during the action, especially the guiding belt is arranged in the guiding sleeve, and the reliable wear resistance can effectively prevent the wear of the guiding sleeve, and can effectively play the role It indicates the guiding action of the rod, which effectively reduces the conversion resistance of the whole machine.
  • Figure 1 is a schematic view of the structure of the adhesive inspection device.
  • Figure 2 is a schematic view showing the arrangement of the left guide sleeve of the adhesive inspection device.
  • Figure 3 is a schematic cross-sectional view of the adhesive inspection device A.
  • Figure 4 is a schematic view of the present invention in a position shown.
  • Figure 5 is a schematic view of the utility model in an intermediate position.
  • Figure 6 is a schematic view of the utility model in a repelling position.
  • Figure 7 is a schematic view showing the rod recess of the present invention.
  • Figure 8 is a schematic view of the movable piece of the present invention.
  • Figure 9 is a schematic view of the starting piece and the roller of the present invention.
  • the existing intimate inspection device which indicates that the rod 1 has four corners of the square rod, is difficult to be effectively sealed, and rainwater is easily carried into the bottom case 7 from the guide sleeve 8 during use, and the sealing effect is poor.
  • the present embodiment provides a close inspection device as shown in FIGS. 1 to 9, including the bottom case 7, and wearing
  • the rods 1 are displayed on the left and right ends of the shaft 1 and the left guide sleeves 8 and the right guide sleeves 9 are respectively disposed on the left and right ends of the shafts 7 .
  • the sleeves 9 are fixedly connected to the left and right end portions of the bottom case 7, respectively; the display rod 1 is expandable and contractible in the axial direction of the left guide sleeve 8.
  • the invention also includes a starting piece 2, a roller 3, and a movable contact 4, wherein the movable contact 4 is provided with a starting piece 2, and the starting piece 2 is provided with a roller 3, and the moving contact 4 is represented by the starting piece 2 and the roller 3
  • the rod 1 cooperates, the indicating rod 1 is one, and the rod 1 has a groove, the groove is stepped, and has a slope on one side of the groove, and the groove is from the top surface of the rod to the bottom surface of the groove Divided into several parallel planes, a recessed piece 5 is arranged in the groove on the display rod 1, and the quick-moving piece 5 has a step formed by a sloped surface, and the inclined surface on the quick-moving piece 5 respectively corresponds to the indicating rod a bevel on the upper groove; a connecting device between the quick-moving piece 5 and the indicating rod 1;
  • the connecting means between the quick acting piece 5 and the indicating rod 1 is a spring 6, and the inclined surface on the side of the groove indicating the rod 1 is 2 layers, and the 2 layers of inclined surfaces will groove from the top surface of the rod 1 to the groove
  • the bottom surface is divided into upper, middle and lower parallel planes, and the inclined surface on the quick-moving piece 5 is also two layers, and the left half of the display rod 1 from the left guide sleeve 8 is circular.
  • the inner hole of the left guide sleeve 8 is circular so as to indicate that the left half of the rod 1 is axially expanded and contracted along the left guide sleeve 8.
  • the rod 1 can be extended and contracted in the axial direction of the left guiding sleeve 8, the left half of the indicating rod 1 is circular, and the inner hole of the corresponding left guiding sleeve 8 is circular, thus indicating the rod 1 and the left guiding sleeve 8 can be completely matched, so that the left half of the rod 1 is axially moved along the left guide sleeve 8, which can have a good waterproof sealing effect.
  • the sticking inspector moves from the indicating position to the repulsive position.
  • the indicating rod 1 When the indicating rod 1 is in the indicating position, the roller 3 on the contact starting piece 2 is in the groove groove on the indicating rod 1, and the moving contact 4 is in the right direction.
  • the connection indicates the contact 8. That is, the tip rail is in the close position.
  • the tip rail movement indicates that the lever 1 is moved to the left, indicating that the slope a on the lever 1 pushes the roller 3 upward, and the starter 2 rotates counterclockwise.
  • the moving contact 4 also rotates counterclockwise.
  • the close-inspector moves from the repulsive position to the representation position.
  • the starting piece 2 is quickly dropped from the quick-moving piece inclined surface d by the spring, and the starting piece 2 and the moving contact 4 are rotated clockwise.
  • the movable contact 4 is turned from the repulsive position to the middle position, indicating that the rod 1 continues to move to the right, the starting piece 2 is quickly dropped from the inclined surface c of the snap-action piece 5, and the movable contact point 4 is turned from the intermediate position to the representation position, thereby achieving close inspection of the tip rail. .
  • a sealing member (such as a double lip seal) 10 is disposed between the left port of the left guide sleeve 8 and the display rod 1.
  • the inner side of the sealing device (such as the double lip seal) 10 is provided with a guide belt 11 disposed between the left guide sleeve 8 and the display rod 1 and arranged around the circumference of the display rod 1 to reduce the representation rod
  • the frictional resistance with the guide sleeve enhances the sealing performance between the left guide sleeve 8 and the display rod 1.
  • the sealing device (such as the double lip seal) 10 and the guiding belt 11 are designed to effectively seal the left guiding sleeve 8 and the socket 1 and can effectively prevent the indicating rod 1 during the movement ( It is indicated that the left half of the rod 1 moves axially along the left guide sleeve 8 to bring rainwater into the casing.
  • a rear opening is added to the left guiding sleeve 8 and the right guiding sleeve 9, so that the positioning positioning of the left guiding sleeve 8, the right guiding sleeve 9 and the bottom casing 7 can be enhanced, and the left guiding sleeve 8 and the right guiding can be made.
  • the position of the sleeve 9 and the bottom case 7 is more reasonable, and also has the effect of enhancing the sealing effect.
  • the contact system adopts a circular arc contact, and the adjustment plate 16, the movable contact 4 and the arm 18 are connected through the spline shaft 12, and the arm 18 is connected to the starter plate 2.
  • the bottom case 7 further includes a spline shaft 12, and a contact seat 13 connected to the spline shaft 12 by a spline.
  • the contact seat 13 is located between the two ends of the spline shaft 12 in the direction in which the spline shaft 12 extends.
  • the bearing 14 is provided; that is, the bearing 14 is used to replace the existing sliding bushing, so as to eliminate the surface friction during the contact group switching process, to reduce the movement resistance of the contact group assembly, and improve the reliability and stability of the system;
  • the use of deep groove bearing ball bearings has a very good effect.
  • a spline bushing 15 is further disposed between the spline and the bearing 14, so as to prevent the joint of the contact seat 13 along the axial direction of the spline shaft 12, and ensure that the pressure of the joint of the left and right contacts is consistent.
  • a positioning member is disposed on the mating surface of the contact base 13 and the bottom case 7.
  • a matching member such as a flat key 17 is disposed on the mating surface of the joint base 10 and the bottom case 1 to position the joint base 10, thereby improving the mounting accuracy of the system.
  • the adhesive inspection device eliminates the surface friction during the switching process of the contact group through the bearing 14, reduces the motion resistance of the contact group assembly, eliminates the occurrence of the latching phenomenon of the contact group, and improves the system.
  • Reliability and stability improve the structure of the splined cushion 15 , increase the axial positioning, prevent the axial movement of the contact set parts due to machining errors, ensure the pressure of the joints of the left and right contacts, and the joints 13 and the bottom shell 7
  • the flat surface 17 is arranged on the mating surface to realize the positioning of the contact seat 13 to achieve extremely high system installation accuracy; by means of the improvement, the rod 1 is rounded, and a sealing device (such as a double lip seal) 10 is added and
  • the guiding belt 11 improves the sealing effect, enhances the waterproof sealing, prevents the display rod 1 from bringing rainwater into the bottom case during the action, and particularly provides the guiding belt 11 in the guiding sleeves 8, 9 for reliable wear resistance.
  • the utility model can effectively prevent the wear of the guide s

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

一种密贴检查器，包括底壳（7）以及穿过底壳（7）并且沿底壳（7）轴向延伸的表示杆（1），表示杆（1）的左右两端上分别套设有左导向套（8）和右导向套（9），表示杆（1）的左半部分以及左导向套（8）的内孔为圆形，表示杆（1）的左半部分可沿左导向套（8）轴向伸缩，左导向套（8）与表示杆（1）之间设置有密封部件（10）。还可在左导向套（8）中设置导向带（11）。该密贴检查器提高了密封效果，防止了左导向套（8）的磨损，还可通过设置轴承（14）消除接点组偶发的卡阻现象。

Description

一种密贴检查器 技术领域
本实用新型属于密贴检查器技术领域，具体涉及一表示杆为圆形的密贴检查器。
背景技术
密贴检查器这一名称的来源很久。最初只是用来检查道岔的密贴状态，后来又加上检查道岔的斥离状态。根据铁路的发展需要，把密贴检查器的功能定义为检查道岔牵引点之间的密贴和斥离状态。
现有的JM-A型密贴检查器仅能检查一根尖轨的密贴状态，因此每组道岔两根尖轨需要两台密贴检查器，分别安设在两侧。其接点系统采用圆弧接点，动接点轴通过花键连接有调整板、动接点组和拐臂。
当表示杆到位后，拐臂在拉簧接头和拉簧的拉动下，将动接点快速接通表示位。在表示杆拉出时，起动片上滚轮与表示杆上的斜面接触时开始，表示杆水平移动，起动片上的滚轮与表示杆上槽内平面接触,动接点组就能转换到中间位，可靠地切断表示，此时表示和斥离接点均断开。当继续表示杆拉出时，动接点组就能继续转换，直到接点组的斥离接点接通。
虽然现有的密贴检查器，在检查道岔的密贴状态或者斥离状态时有着不少优点，但是也存在一些问题，首先接点组的阻力较大，在转换过程中偶发卡阻现象，其次，由于表示杆为活动杆，会伸出底壳外部，这导致底壳内部的防水密封效果不佳，一旦水进入底壳内部，容易对内部的部件造成损害，影响密贴检查器的使用。
实用新型内容
本实用新型的目的是克服现有密贴检查器在使用中存在密封效果不佳以及接点座卡阻现象的问题。
为此，本实用新型提供了一种密贴检查器，包括底壳，以及穿过底壳并且沿底壳轴向延伸的表示杆，所述表示杆的左右两端上分别套设有左导向套、右导向套，所述左导向套、右导向套分别与底壳的左、右端部固定连接；所述表示杆可沿所述左导向套的轴向伸缩；
还包含有起动片、滚轮、动接点，所述动接点轴上装有起动片，所述起动片上装有滚轮，所述动接点通过起动片和滚轮与表示杆配合动作，所述表示杆为一根，该表示杆上有一凹槽，该凹槽为阶梯形，在凹槽的一边有斜面，将凹槽自表示杆顶面至凹槽底面分成几层平行平面，所述表示杆上的凹槽中装有一个速动片，该速动片上有由斜面形成的台阶，该速动片上的斜面分别对应于表示杆上凹槽上的斜面；所述的速动片与表示杆之间装有连接装置；
所述的速动片与表示杆之间的连接装置是弹簧，所述的表示杆上的凹槽一边的斜面为2层，该2层斜面将凹槽自表示杆顶面至凹槽底面分成上、中、下三层平行平面，所述的速动片上的斜面也为2层，所述表示杆自所述左导向套伸缩的左半部分为圆形，所述左导向套的内孔为圆形，以便表示杆的左半部分沿左导向套轴向伸缩。
本实用新型的有益效果：本实用新型提供的这种密贴检查器，通过翻边轴承消除了接点组转换过程中的面摩擦，降低接点组组件的运动阻力，消除接点组偶发的卡阻现象，提高系统的可靠性及稳定性；改进花键垫套结构，增加轴向定位，防止由于加工误差导致的接点组零件轴向窜动，保证左右接点片接点压力一致，并且在接点座与底壳安装的配合面上设置平键，以实现接点座的定位，以极高系统的安装精度；通过将改进表示杆为圆形，并且增加了密封部件和导向带，提高了密封效果，增强了防水密封，防止了表示杆在动作过程中将雨水带入底壳，尤其是在导向套中设置导向带，其可靠的耐磨性可有效的防止导向套的磨损，并可有效的起到对表示杆的导向作用，有效的降低了整机转换阻力。
以下将结合附图对本实用新型做进一步详细说明。
附图说明
图1是密贴检查器结构示意图。
图2是密贴检查器左导向套设置示意图。
图3是密贴检查器A向切面示意图。
图4为本实用新型在表示位置的示意图。
图5为本实用新型在中间位置的示意图。
图6为本实用新型在斥离位置的示意图。
图7为本实用新型表示杆凹仁的示意图。
图8为本实用新型这动片的示意图。
图9为本实用新型起动片和滚轮的示意图。
附图标记说明：1、表示杆；2、启动片；3、滚轮；4、动接点；5、速动片；6、弹簧；7、底壳；8、左导向套；9、右导向套；10、密封部件；11、导向带；12、花键轴；13、接点座；14、轴承；15、花键衬套；16、调整板；；17、平键；18、拐臂。
具体实施方式
为进一步阐述本实用新型达成预定目的所采取的技术手段及功效，以下结合附图及实施例对本实用新型的具体实施方式、结构特征及其功效，详细说明如下。
实施例1：
现有的密贴检查器，其表示杆1为方杆有4个棱角，很难做到有效密封，在使用过程中雨水容易从导向套8处带入底壳7内，存在密封效果不佳的问题；为了解决现有密贴检查器在使用中存在密封效果不佳的问题，本实施例提供了一种如图1至图9所示的密贴检查器，包括底壳7，以及穿过底壳7并且沿底壳7轴向延伸的表示杆1，所述表示杆1的左右两端上分别套设有左导向套8、右导向套9，所述左导向套8、右导向套9分别与底壳7的左、右端部固定连接；所述表示杆1可沿所述左导向套8的轴向伸缩。
还包含有起动片2、滚轮3、动接点4，所述动接点4轴上装有起动片2，所述起动片2上装有滚轮3，所述动接点4通过起动片2和滚轮3与表示杆1配合动作，所述表示杆1为一根，该表示杆1上有一凹槽，该凹槽为阶梯形，在凹槽的一边有斜面，将凹槽自表示杆顶面至凹槽底面分成几层平行平面，所述表示杆1上的凹槽中装有一个速动片5，该速动片5上有由斜面形成的台阶，该速动片5上的斜面分别对应于表示杆1上凹槽上的斜面；所述的速动片5与表示杆1之间装有连接装置；
速动片5与表示杆1之间的连接装置是弹簧6，所述的表示杆1上的凹槽一边的斜面为2层，该2层斜面将凹槽自表示杆1顶面至凹槽底面分成上、中、下三层平行平面，所述的速动片5上的斜面也为2层，所述表示杆1的自所述左导向套8伸缩的左半部分为圆形，所述左导向套8的内孔为圆形，以便表示杆1的左半部分沿左导向套8轴向伸缩。
表示杆1可沿左导向套8的轴向伸缩，所述表示杆1的左半部分为圆形，相应的所述左导向套8的内孔为圆形，这样表示杆1与左导向套8能够完全吻合，以便表示杆1的左半部分沿左导向套8轴向运动，能够有很好的防水密封效果。
密贴检查器从表示位向斥离位动作，当表示杆l在表示位时，接点纽起动片2上的滚轮3处于表示杆1上的凹槽槽内，此时动接点4在右向一个角度，接通表示接点8。也就是尖轨在密贴位置。当尖轨转换时，尖轨带动表示杆1向左移动，表示杆l上的斜面a推动滚轮3向上转动，起动片2向逆时针方向转动。带动动接点4也向逆时针方向转动。切断表示接点8，当滚轮3达到表示杆1凹槽内中间平面时，将动接点4转到中间位，同时起动片2的圆弧面推动速动片5的斜面c向右移动，并压缩弹簧6，当起动片2的尖部向上转动到达中间平面时，弹簧6的弹力将速动片5弹回原位。此时在图2的位置，滚轮3在表示杆l凹槽内的中间平面上。
表示杆1继续向左移动，在尖轨转换中间，滚轮3在表示杆l凹槽内中间平面上滚动，动接点4一直处于中间位置。表示接点8和斥离接点7均断开。
当表示杆1继续向左移动达到一定距离后，表示杆1凹槽内的斜面b推动滚轮3继续向上转动，起动片2和动接点4继续向逆时针方向转动，当滚轮3达到表示杆l的上平面时，动接点4 向左转动一个角度，接通斥离接点7。同时，起动片2的圆弧面推动速动片5的斜面d向右移动，并压缩弹簧6，当起动片2的尖部向上转动到达上平面，弹簧6的弹力将速动片5弹回原位。此时在图3的位置。
密贴检查器由斥离位向表示位动作，当表示杆1向右动作，起动片2夫在弹簧作用下从速动片斜面d快速落下，起动片2和动接点4向顺时针方向转动，动接点4由斥离位转向中间位，表示杆1继续向右动作，起动片2从速动片5的斜面c快速落下，动接点4由中间位转向表示位，实现对尖轨的密贴检查。
实施例2：
在实施例1的基础上，所述左导向套8左端口与表示杆1之间设置有密封部件(如双唇密封圈))10。
所述密封装置(如双唇密封圈)10的内侧设置有置于所述左导向套8与表示杆1之间且绕该表示杆1的周向布置的导向带11，以减小表示杆与导向套之间的摩擦阻力并增强所述左导向套8与表示杆1之间的密封性能。
密封装置(如双唇密封圈)10与导向带11的设计，可有效的起到对左导向套8和表示杆1套接处的密封作用，可有效的防止表示杆1在动作过程中(表示杆1的左半部分沿左导向套8轴向运动)将雨水带入机壳。
除此之外，在左导向套8、右导向套9上增加了止口，这样可以增强左导向套8、右导向套9与底壳7的安装定位，可使得左导向套8、右导向套9与底壳7安装的位置更为合理，同样也具有增强密封效果的作用。
实施例3：
现有的密封检查器，接点系统采用圆弧接点，通过花键轴12连接有调整板16、动接点4和拐臂18，拐臂18与启动片2连接。
为了降低接点组运动的阻力，保证接点组的可靠转换，消除接点组偶发的卡阻现象，对接点组做了如图3所示的改进：
底壳7内还包括花键轴12、通过花键与该花键轴12连接的接点座13，所述接点座13沿所述花键轴12延伸的方向上的两端与花键之间设置有轴承14；也就是用轴承14代替现有的滑动衬套，以便消除接点组转换过程中的面摩擦，以降低接点组组件的运动阻力，提高系统的可靠性及稳定性；上述轴承14采用深沟轴承球轴承具有很好的效果。
所述花键与所述轴承14之间还设置有花键衬套15，以便防止接点座13沿所述花键轴12轴向的窜动，保证左右接点片接点压力一致。
所述接点座13与底壳7的配合面上设置有定位部件。最后，接点座10与底壳1的配合面上设置有定位部件如平键17，以便对接点座10进行定位，从而提高系统的安装精度。
综上所述，本实用新型提供的这种密贴检查器，通过轴承14消除了接点组转换过程中的面摩擦，降低接点组组件的运动阻力，消除接点组偶发的卡阻现象，提高系统的可靠性及稳定性；改进花键垫套15结构，增加轴向定位，防止由于加工误差导致的接点组零件轴向窜动，保证左右接点片接点压力一致，并且在接点座13与底壳7安装的配合面上设置平键17，以实现接点座13的定位，以极高系统的安装精度；通过改进表示杆1为圆形，并且增加了密封装置(如双唇密封圈)10和导向带11，提高了密封效果，增强了防水密封，防止了表示杆1在动作过程中将雨水带入底壳，尤其是在导向套8、9中设置导向带11，其可靠的耐磨性可有效的防止导向套的磨损，并可有效的起到对表示杆1的导向作用，有效的降低了整机转换阻力。
以上内容是结合具体的优选实施方式对本实用新型所作的进一步详细说明，不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本实用新型的保护范围。

Claims (7)

  1. 一种密贴检查器，包括底壳(7)，以及穿过底壳(7)并且沿底壳(7)轴向延伸的表示杆(1)，所述表示杆(1)的左右两端上分别套设有左导向套(8)、右导向套(9)，所述左导向套(8)、右导向套(9)分别与底壳(7)的左、右端部固定连接；所述表示杆(1)可沿所述左导向套(8)的轴向伸缩；
    还包含有起动片(2)、滚轮(3)、动接点(4)，所述动接点(4)轴上装有起动片(2)，所述起动片(2)上装有滚轮(3)，所述动接点(4)通过起动片(2)和滚轮(3)与表示杆配合动作，所述表示杆(1)为一根，该表示杆(1)上有一凹槽，该凹槽为阶梯形，在凹槽的一边有斜面，将凹槽自表示杆(1)顶面至凹槽底面分成几层平行平面，所述表示杆(1)上的凹槽中装有一个速动片(5)，该速动片(5)上有由斜面形成的台阶，该速动片(5)上的斜面分别对应于表示杆(1)上凹槽上的斜面；所述的速动片(5)与表示杆(1)之间装有连接装置；
    所述的速动片(5)与表示杆(1)之间的连接装置是弹簧(6)，所述的表示杆(1)上的凹槽一边的斜面为2层，该2层斜面将凹槽自表示杆(1)顶面至凹槽底面分成上、中、下三层平行平面，所述的速动片(5)上的斜面也为2层，其特征在于：所述表示杆(1)的自所述左导向套(8)伸缩的左半部分为圆形，所述左导向套(8)的内孔为圆形，以便表示杆(1)的左半部分沿左导向套(8)轴向伸缩。
  2. 如权利要求1所述的密贴检查器，其特征在于：所述左导向套(8)左端口与表示杆(1)之间设置有密封部件(10)。
  3. 如权利要求2所述的密贴检查器，其特征在于：所述密封部件(10)的内侧设置有置于所述左导向套(8)与表示杆(1)之间且绕该表示杆(1)的周向布置的导向带(11)，以减小表示杆与导向套之间的摩擦阻力并增强所述左导向套(8)与表示杆(1)之间的密封性能。
  4. 如权利要求1所述的密贴检查器，其特征在于：所述底壳(7)内还包括花键轴(12)、通过花键与该花键轴(12)连接的接点座(13)，所述接点座(13)沿所述花键轴(12)延伸的方向上的两端与花键之间设置有轴承(14)。
  5. 如权利要求1所述的密贴检查器，其特征在于：所述轴承(14)为翻边轴承。
  6. 如权利要求4或5所述的密贴检查器，其特征在于：所述花键与所述轴承(14)之间还设置有花键衬套(15)，以便防止接点座(13)沿所述花键轴(12)轴向的窜动。
  7. 如权利要求4所述的密贴检查器，其特征在于：所述接点座(13)与底壳(7)的配合面上设置有定位部件。
PCT/CN2016/072497 2015-12-07 2016-01-28 一种密贴检查器 WO2017096703A1 (zh)

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