Centering mechanism suitable for hand-push type steel rail flaw detector

Abstract

The utility model relates to the technical field of track detection, in particular to a centering mechanism suitable for a hand-push type steel rail flaw detector, which comprises a detection wheel, a detection mechanism and a detection mechanism, the fixed connecting frame is of a closed rectangular hollow structure; the adjusting unit comprises a first adjusting unit, a second adjusting unit and a third adjusting unit, the adjusting unit is used for adjusting the relative position of the detection wheel relative to the fixed connecting frame, and the detection wheel is connected with the fixed connecting frame in a matched mode through a first connecting piece. The whole structure of the utility model is not provided with a circuit and a circuit structure, and a pure mechanical structure is adopted, so that an electric control system is reduced, and the weight is greatly reduced; through the adjusting unit, the position relation of the detection wheel relative to the rail surface is adjusted in multiple ways, so that the detection of the rail surface is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of track inspection technology, specifically to an alignment mechanism suitable for a hand-push type rail flaw detector. Background Technology

[0002] With the continuous increase in my country's railway operating mileage, traditional flaw detection methods and equipment are gradually becoming inadequate to meet the demands of large-scale, high-efficiency inspections, given the long lines, short maintenance windows, and high standards and precision requirements for high-speed rail maintenance. Existing dual-rail flaw detectors are bulky, inconvenient for switching tracks and transportation, and struggle to handle complex situations. Hand-push dual-rail flaw detectors are more compact, easier to cross tracks, and can inspect two rails simultaneously, significantly improving inspection efficiency and accuracy.

[0003] The existing dual-track flaw detector uses an electric structure for centering, which leads to more circuitry and increases the overall weight. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a centering mechanism suitable for a hand-push rail flaw detector that can achieve centering adjustment solely through a mechanical structure.

[0005] To achieve the above objectives, this utility model provides a centering mechanism suitable for a hand-operated rail flaw detector, comprising:

[0006] Probe wheel;

[0007] A fixed connection frame, wherein the fixed connection frame is a closed rectangular hollow structure;

[0008] The adjustment unit includes a first adjustment unit, a second adjustment unit, and a third adjustment unit. The adjustment unit is used to adjust the relative position of the probe wheel with respect to the fixed connection frame. The probe wheel is connected to the fixed connection frame through a first connector.

[0009] Preferably, the first adjustment unit is an inward and outward adjustment unit, which is used to adjust the positional relationship of the probe wheel relative to the plane of the fixed connection frame.

[0010] Preferably, the first adjustment unit includes inner and outer guide rails, inner and outer guide rails are fitted with inner and outer bearings, and also includes inner and outer connecting members, which are fixedly connected to the first connecting member.

[0011] Preferably, the second adjustment unit is an inward and outward tilt adjustment unit, which is used to adjust the angle between the probe wheel and the plane where the fixed connection frame is located.

[0012] Preferably, the second adjustment unit includes inward and outward tilting guide rails, with a plurality of inward and outward tilting bearings on the upper and lower sides of the inward and outward tilting guide rails, and an inward and outward tilting connecting member on one side of the inward and outward tilting guide rails, the inward and outward tilting connecting member being fixedly connected to the first connecting member.

[0013] Preferably, the third adjustment unit is a vertical adjustment unit, which is used to adjust the positional relationship of the probe wheel relative to the plane of the fixed connection frame in the vertical direction.

[0014] Preferably, the third adjustment unit includes an up-and-down guide rail, which is disposed in the middle of the first connecting member. An up-and-down bearing is sleeved on the surface of the up-and-down guide rail. An up-and-down connecting member is also provided on one side of the up-and-down guide rail. The up-and-down connecting member is fixedly connected to the first connecting member.

[0015] Preferably, it also includes an adjusting rod, which is disposed on the periphery of the fixed connection frame, and the adjusting rod is used to operate the adjusting unit to achieve adjustment.

[0016] Compared with the prior art, the technical solution proposed in this application has the following beneficial effects: the overall structure of this utility model has no circuit and circuit structure, and by adopting a pure mechanical mechanism, the electronic control system is reduced, and the weight is greatly reduced; through the adjustment unit, the positional relationship between the probe wheel and the rail surface is adjusted in multiple ways, making the detection of the rail surface more accurate. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is an overall structural diagram of the centering structure of this utility model;

[0019] Figure 2 This is an exploded view of the centering structure of this utility model;

[0020] Figure 3 This is a partial side view of the present invention; in the figure: 1. Incline adjustment rod, 2. Shift adjustment rod, 3. Up and down displacement adjustment nut, 4. Fixed connection frame, 5. Shift bearing, 6. Incline bearing, 7. Up and down bearing, 8. Probe wheel fixing device, 9. Shift guide rail, 10. Incline guide rail, 11. Up and down guide rail, 12. Shift connector, 13. Incline connector, 14. Up and down connector, 15. Probe wheel. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] See Figure 1 Only Figure 3 This embodiment provides a centering mechanism suitable for a hand-operated rail flaw detector, comprising:

[0025] The probe wheel is connected to the first connector via a probe wheel fixing device. The first connector has a multi-layer structure and is fixedly connected to the fixed connection frame.

[0026] A fixed connection frame, wherein the fixed connection frame is a closed rectangular hollow structure;

[0027] The adjustment unit includes a first adjustment unit, a second adjustment unit, and a third adjustment unit. The adjustment unit is used to adjust the relative position of the probe wheel with respect to the fixed connection frame. The probe wheel is connected to the fixed connection frame through a first connector.

[0028] The first adjustment unit is an inward and outward adjustment unit, used to adjust the positional relationship of the probe wheel relative to the plane of the fixed connection frame. The first adjustment unit includes inward and outward guide rails, with inward and outward bearings fitted onto their surfaces, and also includes an inward and outward connecting member, which is fixedly connected to the first connecting member.

[0029] The second adjustment unit is an inward and outward tilt adjustment unit, used to adjust the angle between the probe wheel and the plane of the fixed connection frame. The second adjustment unit includes inward and outward tilt guide rails, with several inward and outward tilt bearings on the upper and lower sides of the guide rails. An inward and outward tilt connecting member is also provided on one side of the guide rails, and the connecting member is fixedly connected to the first connecting member.

[0030] The third adjustment unit is a vertical adjustment unit, used to adjust the position of the probe wheel relative to the plane of the fixed connection frame in the vertical direction. The third adjustment unit includes a vertical guide rail, which is disposed in the middle of the first connecting member. A vertical bearing is sleeved on the surface of the vertical guide rail, and a vertical connecting member is also provided on one side of the vertical guide rail. The vertical connecting member is fixedly connected to the first connecting member.

[0031] It also includes an adjusting rod, which is disposed around the periphery of the fixed connection frame. The adjusting rod includes an inward / outward tilt adjusting rod, an inward / outward displacement adjusting rod, and an upward / downward displacement adjusting nut, with corresponding operating units to achieve adjustment. The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, nor to combinations thereof. Those skilled in the art can make various changes, modifications, or combinations within the scope of the claims, which do not affect the substantive content of this utility model. Where there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

Claims

1. A centering mechanism for a hand-propelled rail flaw detector, characterized in that, include Probe wheel; A fixed connection frame, wherein the fixed connection frame is a closed rectangular hollow structure; The adjustment unit includes a first adjustment unit, a second adjustment unit, and a third adjustment unit. The adjustment unit is used to adjust the relative position of the probe wheel with respect to the fixed connection frame. The probe wheel is connected to the fixed connection frame through a first connector.

2. The centering mechanism for a hand-propelled rail flaw detector according to claim 1, characterized in that The first adjustment unit is an inward and outward adjustment unit, which is used to adjust the positional relationship of the probe wheel relative to the plane of the fixed connection frame.

3. The centering mechanism for a hand trolley rail flaw detector according to claim 2, characterized in that The first adjustment unit includes inner and outer guide rails, with inner and outer bearings sleeved on the surface of the inner and outer guide rails, and also includes inner and outer connecting parts, which are fixedly connected to the first connecting parts.

4. The centering mechanism for a hand-operated rail flaw detector according to claim 1, characterized in that, The second adjustment unit is an inward and outward tilt adjustment unit, which is used to adjust the angle between the probe wheel and the plane where the fixed connection frame is located.

5. A centering mechanism for a hand trolley rail flaw detector according to claim 4, characterized in that The second adjustment unit includes inward and outward tilting guide rails, with a plurality of inward and outward tilting bearings on the upper and lower sides of the inward and outward tilting guide rails. An inward and outward tilting connecting member is also provided on one side of the inward and outward tilting guide rails, and the inward and outward tilting connecting member is fixedly connected to the first connecting member.

6. The centering mechanism for a hand propelled rail flaw detector according to claim 1, wherein The third adjustment unit is a vertical adjustment unit, which is used to adjust the positional relationship of the probe wheel relative to the plane of the fixed connection frame in the vertical direction.

7. A centering mechanism for a hand trolley rail flaw detector according to claim 6, characterized in that The third adjustment unit includes an up-and-down guide rail, which is disposed in the middle of the first connecting member. An up-and-down bearing is sleeved on the surface of the up-and-down guide rail. An up-and-down connecting member is also provided on one side of the up-and-down guide rail. The up-and-down connecting member is fixedly connected to the first connecting member.

8. The centering mechanism for a hand trolley rail flaw detector according to claim 3 or 5 or 7, characterized in that, It also includes an adjusting rod, which is disposed on the periphery of the fixed connection frame, and the adjusting rod is used to operate the adjusting unit to achieve adjustment.

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