Limiting device for guaranteeing walking stability of railway inspection equipment and inspection equipment

Abstract

The utility model relates to a limiting device for guaranteeing the walking stability of railway inspection equipment and the inspection equipment. The limiting device comprises a first limiting assembly and a second limiting assembly. The first limiting assembly and the second limiting assembly are located on the two opposite sides of the axis direction of a walking wheel of the inspection equipment correspondingly and clamp a steel rail together so as to keep the relative position with the steel rail. The first limiting assembly can be movably installed on the inspection equipment close to or away from the steel rail and is used for abutting against the inner side of the steel rail. One side of the second limiting assembly is movably mounted on the first limiting assembly, so that the other side of the second limiting assembly can be close to or away from the first limiting assembly and abuts against the outer side face of the steel rail. The two sides of the steel rail are limited through the first limiting assembly and the second limiting assembly, the relative position of the walking wheel and the steel rail is kept stable, even if the walking wheel walks in the direction of the vertical line of the cross section of the steel rail, the situation that the walking wheel walks along an S-shaped or Z-shaped path does not occur, and walking stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway inspection equipment, in particular to a limit device and inspection equipment for ensuring the running stability of railway inspection equipment. Background Art

[0002] Railway inspection equipment (also called inspection trolley) is a special equipment used to detect the health of rails. Its characteristics are: the car body is narrow and small, and the wheelbase is generally less than two meters. This creates a problem that due to the small wheelbase and the small spacing between the running wheels, it is easy to form an S-shaped or Z-shaped path on the rails of the railway inspection equipment. In order to detect various engineering parameters of the rails, the detection equipment itself is required to keep in line with the forward direction of the rails as much as possible during measurement (that is, perpendicular to the cross-section of the rails) to ensure stability during travel. If deviation and rotation occur, it will have a greater impact on optical measurements and inertial navigation measurements, especially not conducive to scanning the vertical section when inspecting the rails, which will affect the accuracy of the detection. The above problems need to be solved urgently. Utility Model Content

[0003] The utility model discloses a device for ensuring the running stability of railway inspection equipment and the inspection equipment, aiming to solve the technical problems existing in the prior art.

[0004] The utility model adopts the following technical solutions:

[0005] On the one hand, the utility model provides a limit device to ensure the smooth running of railway inspection equipment, which includes a first limit assembly and a second limit assembly; the first limit assembly and the second limit assembly are respectively located on two opposite sides of the axis direction of the running wheel of the inspection equipment, and jointly clamp the rail to maintain the relative position of the running wheel and the rail; the first limit assembly can be movably installed on the inspection equipment so as to be close to or away from the rail, and is used to abut against the inner side of the rail; one side of the second limit assembly is movably installed on the first limit assembly so that the other side can be close to or away from the first limit assembly, and is used to abut against the outer side of the rail.

[0006] In the limiting device for ensuring the running stability of railway inspection equipment of the utility model, the first limiting assembly includes a displacement assembly, a first frame, a first elastic member and a first guide wheel; the first frame can be installed on the inspection equipment close to or away from the rail through the displacement assembly; the first guide wheels are multiple in number and are rotatably installed on the first frame, and the first guide wheel abuts against the inner side of the rail through the first elastic member and can roll along the inner side of the rail.

[0007] In the limiting device for ensuring the running stability of railway inspection equipment of the utility model, the displacement component is a slider rail component.

[0008] In the limiting device for ensuring the walking stability of railway inspection equipment of the utility model, the second limiting assembly includes a connecting rod, a second frame, a second elastic member and a second guide wheel; one end of the connecting rod passes through the first limiting assembly and is movably connected to the first limiting assembly, and the other end is connected to one side of the second frame; the second guide wheel is rotatably connected to the other side of the second frame, and the second guide wheel can be moved closer to or away from the first limiting assembly through the movably connected connecting rod; the second elastic member abuts between the end of the connecting rod passing through and the first limiting assembly, so that the second guide wheel abuts against the outer side of the rail.

[0009] In the limit device of the utility model for ensuring the running stability of railway inspection equipment, a plug-in hole is provided on the first limit component; the plug-in hole extends along the axial direction of the running wheel and is gap-matched with the connecting rod; the connecting rod is connected to the second elastic member after passing through the plug-in hole.

[0010] In the limiting device for ensuring the running stability of railway inspection equipment of the utility model, the plug-in hole is a long strip hole, and its length direction is arranged along the vertical direction, so that the second frame can swing between an abutment position abutting against the outer side of the rail and an avoidance position higher than the abutment position and not abutting against the outer side of the rail with the position of the second elastic member abutting against the first limiting assembly as a pivot point; when the second guide wheel is located at the abutment position, it can abut against the rail and roll along the outer side of the rail.

[0011] In the limiting device for ensuring the running stability of railway inspection equipment of the utility model, a handle is provided on the second frame; the handle is used to lift the second frame to the avoidance position.

[0012] The limit device for ensuring the running stability of railway inspection equipment of the utility model also includes a limit member; the limit member is installed on the inspection equipment and is located on the moving line of the avoidance position and the abutment position of the second limit component, so that the second limit component is maintained at the avoidance position or the abutment position.

[0013] In a second aspect, the utility model further provides an inspection device, which includes a frame, running wheels and the above-mentioned limiting device;

[0014] The frame is used to install the inspection device; the number of the running wheels is at least 2, and they are rotatably installed on the frame for running on two rails; each running wheel is limited by the first limiting assembly and the second limiting assembly to maintain the relative position with the rail; the first limiting assembly is movably installed on the frame.

[0015] In the inspection device of the utility model, the inspection device includes four running wheels; two of the running wheels are located on one side of the frame, and the other two running wheels are located on the other side of the frame.

[0016] The technical solution adopted by the utility model can achieve the following beneficial effects:

[0017] The utility model mainly provides a device for ensuring the walking stability of railway inspection equipment. The device limits both sides of the rail by using a first limiting component and a second limiting component, thereby keeping the relative position of the running wheel and the rail stable, that is, the running wheel runs along the vertical direction of the cross section of the rail, and does not run along an S-shaped or Z-shaped path. This avoids the situation that when the inner side of the rail is limited only by the first limiting component, the direction of the pulling force deviates from the extension direction of the rail when the inspection equipment is pulled to walk, causing the inspection equipment to run along an S-shaped or Z-shaped path, thereby improving the walking stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for the description of the embodiment, which constitute a part of the utility model. The schematic embodiment of the utility model and its description explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:

[0019] Figure 1 This is a schematic diagram of the main structure of a limit device for ensuring the running stability of railway inspection equipment according to the utility model;

[0020] Figure 2 It is a schematic diagram of the main structure when the second frame of the utility model is located in the avoidance position;

[0021] Figure 3 This is a three-dimensional structural schematic diagram of a limit device for ensuring the running stability of railway inspection equipment according to the utility model;

[0022] Figure 4 It is a structural schematic diagram of the inspection equipment of the present utility model.

[0023] Description of reference numerals:

[0024] 1. Limiting device; 11. First limiting assembly; 111. Displacement assembly; 112. First frame; 113. First elastic member; 114. First guide wheel; 115. Plug-in hole; 12. Second limiting assembly; 121. Connecting rod; 122. Second frame; 123. Second elastic member; 124. Second guide wheel; 125. Handle; 13. Limiting member; 2. Frame; 3. Travel wheel. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. In the description of the utility model, it should be noted that the term "or" is usually used in the sense of including "and / or", unless the content clearly indicates otherwise.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a magnetic connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In order to solve the problems existing in the prior art, the embodiments of the present application provide a limit device and inspection equipment for ensuring the running stability of railway inspection equipment.

[0029] Example 1

[0030] This embodiment provides a device for ensuring the running stability of railway inspection equipment, such as Figure 1-Figure 3 As shown, it includes a first limit assembly 11 and a second limit assembly 12; the first limit assembly 11 and the second limit assembly 12 are respectively located on two opposite sides of the axis direction of the running wheel 3 of the inspection equipment, and jointly clamp the rail to maintain the relative position of the running wheel 3 and the rail; the first limit assembly 11 can be movably installed on the inspection equipment so as to be close to or away from the rail, and is used to abut against the inner side of the rail; one side of the second limit assembly 12 is movably installed on the first limit assembly 11 so that the other side can be close to or away from the first limit assembly 11, and is used to abut against the outer side of the rail.

[0031] The utility model discloses a limit device 1 for ensuring the walking stability of railway inspection equipment. The first limit assembly 11 and the second limit assembly 12 are used to limit both sides of the rail, so as to keep the relative position of the running wheel 3 and the rail stable, that is, the running wheel 3 is allowed to run along the vertical direction of the cross section of the rail, and will not run along an S-shaped or Z-shaped path. This avoids the situation where the inspection equipment runs along an S-shaped or Z-shaped path when the inner side of the rail is limited only by the first limit assembly 11, because the direction of the pulling force deviates a lot from the extension direction of the rail when the inspection equipment is pulled to run.

[0032] In some preferred embodiments, the direction of the abutment force of the first limiting assembly 11 and the second limiting assembly 12 on the rail is parallel to the axial direction of the running wheel 3, so as to better keep the running wheel 3 in the vertical direction perpendicular to the rail interface when running.

[0033] In some preferred embodiments, Figure 1-Figure 3 As shown, in order to further improve the stability and passability of the first limiting assembly 11 when passing through the turnout or the docking end, the first limiting assembly 11 includes a displacement assembly 111, a first frame 112, a first elastic member 113 and a first guide wheel 114; the first frame 112 can be installed on the inspection equipment close to or away from the rail through the displacement assembly 111; the first guide wheel 114 is multiple in number and is rotatably installed on the first frame 112, and the first guide wheel 114 abuts against the inner side of the rail through the first elastic member 113 and can roll along the inner side of the rail. Preferably, a plurality of first guide wheels 114 are spaced apart along the extension direction of the rail, and the spacing distance is greater than the spacing between the turnouts or docking ends of the rail, so as to ensure that there is always at least one first guide wheel 114 abutting against the inner side of the rail, and to avoid the first guide wheel 114 being stuck in the spacing space of the turnout or docking end when passing through the turnout or docking end, thereby affecting smooth walking; preferably, the elastic expansion and contraction direction of the first elastic member 113 is in the same direction as the axis of the running wheel 3, and the first elastic member 113 can be selected as a spring, one end of which can be fixedly arranged such as being fixed on the frame 1, and the other end abutting against the first frame body 112, or being sleeved on a guide rod, and the extension direction of the guide rod is parallel to the axial direction of the running wheel 3, one end of the spring is fixed on the guide rod, and the other end abuts against the first frame body 1122; preferably, the first guide wheel 34 is made of hard rubber.

[0034] Preferably, the displacement assembly 111 is a slider rail assembly; wherein the rail of the slider rail assembly can be optionally fixed on the inspection equipment, the first frame 112 is fixed on the slider, and the extension direction of the rail is parallel to the axis of the running wheel 3 of the inspection equipment; the first elastic member 113 abuts against the slider, so that the slider drives the first guide wheel 114 on the first frame 112 to abut against the inner side of the rail.

[0035] In some preferred embodiments, Figure 1-Figure 3 As shown, the second limiting assembly 12 includes a connecting rod 121, a second frame 122, a second elastic member 123 and a second guide wheel 124; one end of the connecting rod 121 passes through the first limiting assembly 11 and is movably connected to the first limiting assembly 11, and the other end is connected to one side of the second frame 122; the second guide wheel 124 is rotatably connected to the other side of the second frame 122, and the second guide wheel 124 can be close to or away from the first limiting assembly 11 through the movable connection of the connecting rod 121; the second elastic member 123 is abutted between the end portion of the connecting rod 121 passing through and the first limiting assembly 11, so that the second guide wheel 124 is abutted against the outer side of the rail; based on the second elastic member 123 to realize the second guide wheel 124 to abut against the outer side of the rail and the first limiting assembly 11 can be close to or away from the rail, it can improve the abutment of the first limiting assembly 113 against the inner side of the rail when only From another perspective, when achieving the same abutment force on the inner side of the rail, the abutment force on the inner side of the rail by only the first limit assembly 11 can be reduced, thereby reducing the possibility of the first limit assembly 11 being stuck in the gap between the rails when passing through the turnout or the docking end position, and the running wheel 3 on the other side of the rail is still clamped and limited by the first limit assembly 11 and the second limit assembly 12, then the running wheel 3 can be kept running along the vertical direction of the cross section of the rail, thereby improving the stability and passability of the inspection equipment during walking; preferably, the elastic expansion and contraction direction of the second elastic member 123 is in the same direction as the axis of the running wheel 3, the second elastic member 123 can be selected as a spring, which is mounted on the connecting rod 121, one end of which is against the end of the connecting rod 121, and the other end is against the first frame 112 of the first limit assembly 11; preferably, the second guide wheel 124 is made of hard rubber.

[0036] Preferably, a plug-in hole 115 is provided on the first limiting component 11; the plug-in hole 115 extends axially along the walking wheel 3 and is clearance-matched with the connecting rod 121; the connecting rod 121 passes through the plug-in hole 115 and is connected to the second elastic member 123; specifically, the plug-in hole 115 is provided on the first frame 112 of the first limiting component 11; preferably, the number of the connecting rod 121 and the plug-in hole 115 are both at least 2 to improve the stability of the connection.

[0037] Preferably, the plug-in hole 115 is an elongated hole, and its length direction is arranged in the vertical direction, so that the second frame 122 can swing between an abutment position abutting against the outer side of the rail and an avoidance position higher than the abutment position and not abutting against the outer side of the rail with the position of the second elastic member 123 abutting against the first limit assembly 11 as a pivot point; the second guide wheel 124 can abut against the rail and roll along the outer side of the rail when it is in the abutment position; the plug-in hole 115 is arranged in an elongated shape, which, on the one hand, realizes the extension and retraction of the connecting rod 121 in the hole, and on the other hand, realizes the swing of the second frame 122, so that it can be lifted to the avoidance position when passing through the turnout of the rail or the end connection of the rail or the obstacle on the outer side of the rail, and then smoothly passes through the above-mentioned abnormal road section.

[0038] In some preferred embodiments, Figure 1-Figure 3 As shown, a handle 125 is disposed on the second frame 122; the handle 125 is used to lift the second frame 122 to the avoidance position.

[0039] In some preferred embodiments, Figure 1-Figure 3 As shown, it also includes a limiter 13; the limiter 13 is installed on the inspection device and is located on the moving line of the avoidance position and the abutment position of the second limiter assembly 12, so that the second limiter assembly 12 is kept in the avoidance position or the abutment position. Preferably, the limiter 13 is installed on the inspection device through a connecting member, and the end of the limiter 13 can extend or retract relative to the connecting member, such as being connected to the connecting member by screwing, and the end of the limiter 13 can be extended out of the connecting member or retracted into the connecting member by rotating the limiter 13. When in the abutment position, the end of the limiter 13 is attached to the top surface of the connecting rod 121, and when in the avoidance position, the end is located in the strip hole of the second frame 122.

[0040] In some preferred embodiments, Figure 1-Figure 3 As shown, the first limiting assembly 11 includes at least two first guide wheels 114, and the second limiting assembly 12 includes at least two second guide wheels 124. The first guide wheels 114 are spaced apart along the extension direction of the rail, and the second guide wheels 124 are also spaced apart along the extension direction of the rail. Based on the arrangement of multiple first guide wheels 114 and second guide wheels 124, if two are arranged respectively, the abutment against the rail is more stable, which can further improve the limiting effect of the walking wheel 3 and ensure its walking direction.

[0041] Example 2

[0042] This embodiment provides an inspection device, such as Figure 4As shown, it includes a frame 2, running wheels 3 and the limiting device 1 of the above-mentioned embodiment 1; the frame 2 is used to install the inspection device; the running wheels 3 are at least 2 in number and are rotatably installed on the frame 2 respectively, and are used to run on two rails; each running wheel 3 is limited by the first limiting component 11 and the second limiting component 12 of the limiting device 1 respectively to maintain the relative position with the rail; the first limiting component 11 is movably installed on the frame 2. The specific structure and effect of the first limiting component 11 and the second limiting component 12 are the same as the corresponding contents in embodiment 1, and are not repeated here.

[0043] The inspection equipment of the present invention is based on limiting both sides of the rail by the first limiting component 11 and the second limiting component 12, so as to keep the relative position of the running wheel 3 and the rail stable, that is, the running wheel 3 moves along the perpendicular direction of the cross section of the rail, and does not walk along an S-shaped or Z-shaped path, thereby avoiding the situation where the inspection equipment moves along an S-shaped or Z-shaped path when only the first limiting component 11 is used to limit the inner side of the rail, because the direction of the pulling force when pulling the inspection equipment to move deviates a lot from the extension direction of the rail.

[0044] In some preferred embodiments, the inspection equipment includes four running wheels 3; two of the running wheels 3 are located on one side of the frame 2, and the other two running wheels 3 are located on the other side of the frame 2; based on the arrangement of multiple running wheels 3, the walking stability of the inspection equipment can be improved.

[0045] The working method of the limiting device of the inspection equipment of the utility model when passing through different road conditions is as follows: when it is judged that both of the two rails are straight rails, that is, a continuous rail section, which can be a straight rail section or a section with a varying gauge between the two rails, all the second limiting components 12 are lowered to the abutment position, that is, the running wheels 3 on both sides of the frame are clamped by the first limiting component 11 and the second limiting component 12 to limit the rails together, so as to ensure that the running wheels 3 run along a direction perpendicular to the cross section of the rail; compared with the method of limiting the inner side of the rail only by the first limiting component 11, the limiting on both sides can avoid the problem of uneven pulling force on the vehicle body 1, that is, uneven force on the running wheels 3 on both sides, causing the vehicle body 1 to deviate and walk, and at the same time, when walking on the turning part of the rail, avoid the problem of not being able to walk along a direction perpendicular to the cross section of the rail when only the inner side abutment limiting is used; when it is judged that one of the two rails has a switch or a butt end or an obstacle on the outer side of the rail, lift the second limiting component 12 on the side of this rail to the avoidance position, and the first limiting component on the other side of the rail 11 and the second limiting assembly 12 clamp the rail together; when it is judged that the rail is a curved rail section, the second limiting assembly 12 located on the outer side (large radius side) of the rail is lifted to the avoidance position, and the first limiting assembly 11 and the second limiting assembly 12 of the inner rail are kept to clamp the rail together, so as to ensure that the inspection equipment moves along the tangent direction of the rail when passing through the bend; the utility model is based on lifting the second limiting assembly 12 to the avoidance position when passing through the turnout or the docking end, thereby reducing the abutment force of the first limiting assembly 11 on the inner side of the rail, thereby reducing the possibility of the first limiting assembly 11 being stuck in the gap between the rails when passing through the turnout or the docking end position, and the running wheel 3 on the other side of the rail is still clamped and limited by the first limiting assembly 11 and the second limiting assembly 12, so that the running wheel 32 can be kept moving along the vertical direction of the cross section of the rail, which not only improves its stability during walking, but also ensures the accuracy of detection; specifically, the height of the lifting when avoiding the position is set as needed, so as to avoid obstacles.

[0046] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A limit device for ensuring the running stability of railway inspection equipment, characterized in that: It includes a first limiting component and a second limiting component; The first limiting assembly and the second limiting assembly are respectively located on two opposite sides of the axis direction of the running wheel of the inspection device, and jointly clamp the rail to maintain the relative position of the running wheel and the rail; The first limiting assembly is movably mounted on the inspection device so as to be close to or away from the rail, and is used to abut against the inner side of the rail; One side of the second limiting component is movably mounted on the first limiting component so that the other side can be close to or away from the first limiting component and is used to abut against the outer side surface of the rail.

2. The limiting device for ensuring the running stability of railway inspection equipment according to claim 1 is characterized in that: The first limiting assembly includes a displacement assembly, a first frame, a first elastic member and a first guide wheel; The first frame can be installed on the inspection device close to or away from the rail through the displacement assembly; The first guide wheels are multiple in number and are rotatably mounted on the first frame. The first guide wheels abut against the inner side of the rail through the first elastic member and can roll along the inner side of the rail.

3. The limiting device for ensuring the running stability of railway inspection equipment according to claim 2 is characterized in that: The displacement component is a slider rail component.

4. The limiting device for ensuring the running stability of railway inspection equipment according to claim 1 is characterized in that: The second position-limiting assembly includes a connecting rod, a second frame, a second elastic member and a second guide wheel; One end of the connecting rod passes through the first limiting assembly and is movably connected to the first limiting assembly, and the other end is connected to one side of the second frame; The second guide wheel is rotatably connected to the other side of the second frame, and the second guide wheel can be movably connected to the connecting rod and can be close to or away from the first limiting assembly; The second elastic member abuts between the end of the connecting rod and the first limiting assembly, so that the second guide wheel abuts against the outer side of the rail.

5. The limiting device for ensuring the running stability of railway inspection equipment according to claim 4 is characterized in that: The first limiting component is provided with a plug-in hole; The plug-in hole extends along the axial direction of the running wheel and is clearance-matched with the connecting rod; the connecting rod is connected with the second elastic member after passing through the plug-in hole.

6. The limiting device for ensuring the running stability of railway inspection equipment according to claim 5 is characterized in that: The plug-in hole is a long hole, and its length direction is arranged in the vertical direction, so that the second frame can swing between an abutment position abutting against the outer side of the rail and an avoidance position higher than the abutment position and not abutting against the outer side of the rail with the position of the second elastic member abutting against the first limit assembly as a pivot point; when the second guide wheel is located at the abutment position, it can abut against the rail and roll along the outer side of the rail.

7. The limiting device for ensuring the running stability of railway inspection equipment according to claim 6 is characterized in that: Also includes a limiter; The limiting member is installed on the inspection device and is located on a moving line between the avoidance position and the abutment position of the second limiting component, so that the second limiting component is maintained at the avoidance position or the abutment position.

8. The limiting device for ensuring the running stability of railway inspection equipment according to claim 6 is characterized in that: The second frame is provided with a handle; the handle is used to lift the second frame to the avoidance position.

9. An inspection device, characterized in that: It comprises a frame, running wheels and the device according to any one of claims 1 to 8; The frame is used to install the inspection device; The running wheels are at least two in number and are rotatably mounted on the frame and are used for running on two rails; Each of the running wheels is limited by the first limiting assembly and the second limiting assembly respectively, so as to maintain a relative position with the rail; The first limiting assembly is movably mounted on the vehicle frame.

10. The inspection device according to claim 9, characterized in that The inspection device comprises four said walking wheels; Two of the running wheels are located on one side of the frame, and the other two running wheels are located on the other side of the frame.

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