A multi-purpose device suitable for installing sensors on rail vehicles

Abstract

The present invention discloses a multi-purpose device suitable for installing rail vehicle sensors, comprising a mounting bracket, wherein the mounting bracket includes a wavy facade a, a wavy facade b, a connecting surface, a first mounting surface, a second mounting surface, a first supporting surface, a second supporting surface, and a third supporting surface. The wavy facade a is located on the side close to the wheel, and the wavy facade b is located on the side away from the wheel. The wavy facade a and the wavy facade b are used to connect the connecting surfaces and the connecting ports in series. The connecting surface is located at the upper end of the wavy facade a and the wavy facade b on the side close to the wheel. The connecting surface is used to connect to the bogie, and the first mounting surface is located at the lower end of the connecting surface. The present invention has a simple structure and a reasonable design. The mounting size and form of the frame end can be adjusted according to the specific bogie model. The height of the mounting device body and the height of the wheel rim lubrication bracket can be adjusted to meet the installation requirements of different models and types of near-rail surface sensors.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transportation, in particular to a multi-purpose device suitable for installing sensors on rail vehicles. Background Art

[0002] In order to monitor the operating status of rail vehicles and realize functions such as unmanned driving, the vehicles need to be equipped with sensors such as track circuit reading sensors and derailment detection sensors. Such sensors are usually required to be arranged directly above the track, maintain a small distance from the track surface and have a small spacing fluctuation.

[0003] There are three types of sensor installation devices: one is fixed on the vehicle body chassis, the second is fixed on the end of the bogie frame side beam, and the third is fixed on the bogie side beam or the lower part of the cross beam.

[0004] Deficiencies of existing technology:

[0005] The existing mounting device fixed to the vehicle chassis is described in patent application 201120503410.X. However, during the actual operation of the rail vehicle, there is a large displacement between the vehicle body and the track, especially when turning or in harsh line environments, which affects the working accuracy of the sensor and poses a great threat to driving safety.

[0006] Another type of mounting device is located at the end of the side beam and is generally made of welded steel. This has the disadvantages of being heavy, expensive, and prone to rust. In particular, the heavy weight makes it difficult to adapt to the already harsh vibration and impact operating environment, ultimately affecting driving safety.

[0007] The third type is installed on the lower part of the bogie side beam or crossbeam, as described in patent application 201811258509.0. Due to installation space constraints, this structure tends to extend vertically. On some bogie models, it is very close to the wheelset. When repairing or replacing the wheelset, the entire installation device must be removed in advance, which brings inconvenience to maintenance and results in waste of connecting fasteners. In addition, the installation structure itself has many mounting bolts and welds, which also challenges its structural reliability.

[0008] In addition, wheel flange lubrication is an essential device at the end of each bogie to reduce wheel flange wear. The mounting interface at the end of the bogie is in short supply, and there is currently no device that can fix the wheel flange lubrication equipment when installing the sensor directly above the track;

[0009] The sensors fixed on the vehicle chassis are affected by the large displacement between the vehicle body and the track, which affects the sensor accuracy; the steel welding mounting device fixed on the end of the bogie frame side beam has a large weight, high cost, and is more prone to rust; the mounting device fixed on the bogie side beam or the lower part of the crossbeam has insufficient installation space, and the existing device affects the maintenance of the wheelset, causes waste of fasteners, and the large number of bolt tightening and welding connections affects the structural reliability; and the tight position at the end of the bogie frame causes the lack of a common device for rail vehicle sensors and wheel rim lubrication. Summary of the Invention

[0010] The object of the present invention is to provide a multi-purpose device suitable for installing sensors on rail vehicles to solve the problems raised in the above background technology.

[0011] To achieve the above-mentioned object, the present invention provides the following technical solution: a multi-purpose device suitable for installing a sensor on a rail vehicle, comprising a mounting bracket, wherein the mounting bracket comprises:

[0012] A wavy facade a, wherein the wavy facade a is located on a side close to the wheel;

[0013] The wavy facade b is located on a side away from the wheel, and the wavy facade a and the wavy facade b are used to connect the connection surfaces and the connection ports in series;

[0014] A connecting surface, located at the upper end of the wavy facade a and the wavy facade b on a side close to the wheel, and used for connecting to the bogie;

[0015] a first mounting surface, the first mounting surface being located at a lower end of the connecting surface and being used for mounting a wheel rim lubrication nozzle;

[0016] a second mounting surface, the second mounting surface being located at the lower ends of the wavy vertical surface a and the wavy vertical surface b, and being used for mounting a sensor;

[0017] The first supporting surface, the second supporting surface and the third supporting surface are arranged between the wavy facade a and the wavy facade b and are arranged from top to bottom. The first supporting surface, the second supporting surface and the third supporting surface are used to increase the structural strength between the connecting surface and the wavy facade a and the wavy facade b.

[0018] As a further improvement of the present invention, the curvature of the upper portion of the wavy facade a decreases, and the curvature of the upper portion of the wavy facade b is greater than that of the lower portion, forming a structural strong point.

[0019] As a further improvement of the present invention, a boss is provided on the side of the connecting surface away from the wavy facade a and the wavy facade b, and connecting holes for connecting to the bogie are provided on both sides of the upper and lower ends of the boss on the connecting surface.

[0020] As a further improvement of the present invention, a first mounting hole for installing a wheel rim lubrication nozzle is provided on the first mounting surface, the first mounting surface forms an angle of 15° with the track surface, and the first mounting surface is connected to and parallel to the second supporting surface.

[0021] As a further improvement of the present invention, a through hole for routing the sensor cable is provided on the second mounting surface, a gasket is provided on the lower end surface of the second mounting surface, and second mounting holes for mounting the sensor are provided on both the second mounting surface and the gasket.

[0022] As a further improvement of the present invention, waist holes are provided on both the first supporting surface and the third supporting surface, and the first supporting surface forms an angle of 45° with the connecting surface.

[0023] As a further improvement of the present invention, a pipe clamp fixing hole for fixing the sensor cable is provided on the third supporting surface.

[0024] As a further improvement of the present invention, first, second and third reinforcing ribs for force transmission are provided at the connection points of the wavy facade a, the wavy facade b and the connection surface.

[0025] As a further improvement of the present invention, the mounting bracket is integrally formed of cast aluminum.

[0026] As a further improvement of the present invention, the mounting bracket is divided into two upper and lower spatial parts with the second supporting surface as the reference plane. The upper spatial part of the mounting bracket tends to gradually converge from top to bottom. The wavy facade a and the wavy facade b on the upper end of the second mounting surface in the lower spatial part of the mounting bracket are arranged in parallel. The two curved surfaces of the spatial part below the second supporting surface are arcs with the center curve as concentric circles.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention is an integrated cast aluminum part, which can reduce the structural unreliability caused by welding and fastener connections. The integrated part has a long fatigue life and is equipped with a mounting bracket that is conducive to the operation of the wheel rim lubrication equipment, realizing a two-in-one installation function. At the same time, the unique wavy facade design facilitates the subsequent maintenance of the wheelset to reduce maintenance costs while achieving structural stability, lightweight and aesthetics. In addition, the present invention meets the installation space and strength requirements of the near-track surface sensor at the end of the bogie frame; it is lighter and has greater rigidity than cast iron parts, which weakens the vibration of the sensor and effectively protects the sensor. The installation size and form of the frame end can be adjusted according to the specific bogie model, and the height of the mounting device body and the height of the wheel rim lubrication bracket can be adjusted to meet the installation requirements of different models and types of near-track surface sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a perspective view of the installation of a multi-purpose device suitable for installing sensors on rail vehicles;

[0030] Figure 2 A perspective view of a mounting bracket for a multi-purpose device suitable for mounting sensors on rail vehicles;

[0031] Figure 3 A stereoscopic diagram of a mounting bracket and bogie installation of a multi-purpose device suitable for installing sensors on rail vehicles;

[0032] Figure 4 A perspective view of a wavy facade side a of a multi-purpose device suitable for rail vehicle sensor installation;

[0033] Figure 5 A top view of a multi-purpose device suitable for mounting sensors on rail vehicles;

[0034] Figure 6 A perspective view of the wavy facade side B of a multi-purpose device suitable for installing sensors on rail vehicles.

[0035] In the figure: 1. Mounting bracket; 101. Wave-shaped facade a; 102. Wave-shaped facade b; 103. Connecting surface; 1031. Boss; 1032. Connecting hole; 104. First mounting surface; 1041. First mounting hole; 105. Second mounting surface; 1051. Through hole; 1052. Gasket; 1053. Second mounting hole; 106. First supporting surface; 1061. Waist hole; 107. Second supporting surface; 108. Third supporting surface; 1081. Fixing hole; 109. First reinforcing rib; 110. Second reinforcing rib; 111. Third reinforcing rib. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] It should be noted that when an element is referred to as being "fixed," "mounted," "connected," or "disposed" with another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation as described in the specification. Therefore, they should not be understood as limiting the present invention.

[0038] As a further refinement of the present invention, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0039] See also Figure 1-6The present invention provides a technical solution: a multi-purpose device suitable for installing sensors on rail vehicles, comprising a mounting bracket 1, the mounting bracket 1 comprising a wavy vertical surface a101, a wavy vertical surface b102, a connecting surface 103, a first mounting surface 104, a second mounting surface 105, a first supporting surface 106, a second supporting surface 107 and a third supporting surface 108, the wavy vertical surface a101 being located on the side close to the wheel, the wavy vertical surface b102 being located on the side away from the wheel, the wavy vertical surface a101 and the wavy vertical surface b102 being located on the side away from the wheel, The vertical surface b102 is used to connect the various connection surfaces and the various connection ports in series. The connection surface 103 is located at the upper end of the wavy vertical surface a101 and the wavy vertical surface b102 close to the wheel side. The connection surface 103 is used to connect to the bogie. The first mounting surface 104 is located at the lower end of the connecting surface 103. The first mounting surface 104 is used to install the wheel rim lubrication nozzle. The second mounting surface 105 is located at the lower end of the wavy vertical surface a101 and the wavy vertical surface b102. The second mounting surface 105 is used to install the sensor. The first support surface 106 and the second support surface 107 and the third supporting surface 108 are located between the wavy facade a101 and the wavy facade b102 and are distributed from top to bottom. The first supporting surface 106, the second supporting surface 107 and the third supporting surface 108 are used to increase the structural strength between the connecting surface 103 and the wavy facade a101 and the wavy facade b102. The wavy facade a101 and the wavy facade b102 are both wavy in shape, with greater structural rigidity and less prone to deformation. The overall structure is large at the top and small at the bottom, with clear primary and secondary, and smooth force transmission. 101 is located on the side close to the wheel (inside), with its upper part rapidly descending and its lower part slowly transitioning to the second mounting surface 105. The wavy facade b102 is located on the side away from the wheel (outside). Its structure refers to a rotating single-leaf hyperboloid. The upper part first slowly descends and then rapidly descends, forming a structural strong point. As a result, the overall force is tilted inward, thus strengthening the overall structural strength. It is like tying a bundle of wooden sticks tightly from the middle. The cross-shaped nodes between the sticks provide better restraint, thereby improving the overall structural stability. The entire load-displacement process is convex, that is, the structural stiffness increases with the increase of displacement, which reduces the possibility of overall structural instability. The wavy facade a101 and the wavy facade b102 make it intersected with the connecting surface 103 and the second mounting surface 105, maintaining the smoothness of the overall structure and achieving good mold casting, forming an intersecting combined body. The shape is beautiful and practical, the space is active, and it is beautiful and natural. At the same time, the device also removes the upper half through curved surface cutting, while ensuring the structural strength and maximizing the lightweight and aesthetics of the device. In addition, the blank design below the wavy facade b102 also makes room for the front of the wheelset, meeting the space required for the turning, repair and replacement of the wheelset, avoiding the disassembly and assembly of the device before and after wheelset maintenance, reducing the waste of fasteners and reducing labor costs.

[0040] The upper curvature of the wavy facade a101 decreases, while the upper curvature of the wavy facade b102 is greater than the lower curvature, forming a structural strong point. The structure refers to a rotating single-leaf hyperboloid. The upper part first slowly decreases and then decreases rapidly, forming a structural strong point, causing the overall force to tilt inward, thereby enhancing the overall structural strength.

[0041] A boss 1031 is integrally formed on the side of the connecting surface 103 away from the wavy facade a101 and the wavy facade b102. The boss 1031 is used to connect to the bogie for positioning and anti-shearing functions. Connecting holes 1032 for connecting to the bogie are integrally formed on both sides of the upper and lower ends of the boss 1031 on the connecting surface 103.

[0042] A first mounting hole 1041 for mounting a wheel rim lubrication nozzle is integrally formed on the first mounting surface 104, which enables adjustment of the nozzle position. The first mounting surface 104 forms a 15° angle with the track surface, which is more conducive to the operation of the nozzle and the splashing effect. The first mounting surface 104 is connected to and parallel to the second supporting surface 107, which is more conducive to force transmission.

[0043] A through hole 1051 for routing the sensor cable is integrally formed on the second mounting surface 105. A gasket 1052 is installed on the lower end surface of the second mounting surface 105. By selecting gaskets 1052 of different specifications, the working height of the track circuit reader above the rail can be adjusted to reduce the impact of the turning wheel on the working height. Second mounting holes 1053 for installing the sensor are integrally formed on the second mounting surface 105 and the gasket 1052 to prevent the cable from shaking, getting caught or being worn due to the long span from the track circuit reader to the vehicle body chassis.

[0044] The first support surface 106 and the third support surface 108 are both integrally formed with waist holes 1061 to reduce vibration. The first support surface 106 and the connecting surface 103 form a 45° angle, which plays a role in turning force and reasonably distributing the stiffness on both sides.

[0045] A pipe clamp fixing hole 1081 for fixing the sensor cable is integrally formed on the third supporting surface 108 .

[0046] The first reinforcing rib 109 , the second reinforcing rib 110 and the third reinforcing rib 111 for force transmission are integrally formed at the connection between the wavy facade a101 , the wavy facade b102 and the connection surface 103 , so as to increase the structural strength and force transmission.

[0047] The mounting bracket 1 is integrally formed by cast aluminum.

[0048] The mounting bracket 1 is divided into two upper and lower spatial parts with the second supporting surface 107 as the reference plane. The upper spatial part of the mounting bracket 1 tends to gradually converge from top to bottom. The wavy facade a101 and the wavy facade b102 at the upper end of the second mounting surface 105 in the lower spatial part of the mounting bracket 1 are arranged in parallel. The two curved surfaces in the spatial part below the second supporting surface 107 are arcs with the center curve as concentric circles.

[0049] In this embodiment, the device weighs 18 kg, is made of AC-AlSi7Mg0.3, has a hanging object of 6.5 kg below, and 2 kg on the side, and the modal superposition method is used to simulate device damage. The modal superposition method uses the system's undamped vibration mode (mode) as the spatial basis. Through coordinate transformation, the original force equation is decoupled, and N independent equations are solved to obtain the modal displacement. The system response is then obtained by superimposing the contribution of each mode. The modal calculation results from the first to the third order are 78.654 Hz, 118.568 Hz, and 246.64 Hz, respectively. The results show high stiffness. Under the same conditions, the maximum vertical damage calculation result is 0.09, which far meets the qualification condition of total damage <1. The above results demonstrate that the device has a stable structure and a long fatigue life.

[0050] The sensor is the core of the track circuit reader, which is a reliable electromagnetic induction coil. It uses the rail as a conductor to automatically and continuously detect the occupied / cleared status of the track section, as well as the broken rail fault information of the track section. It also transmits driving information to the train control system via cables to ensure driving safety.

[0051] The bolts are open-hole bolts and are secured with anti-loosening wire ties to prevent them from loosening due to vibration at the ends of the frame, which could cause the sensor or mounting device to fall onto the track, resulting in property damage and driving threats.

[0052] In this device, the second support surface 107 can be used as a reference plane during the molding and casting processes to divide the device into two spatial sections, upper and lower. The upper main body tends to gradually converge from top to bottom, satisfying the upward demolding trend characteristic. The wavy facade a101 and wavy facade b102 above the second mounting surface 105 of the lower part are parallel, enabling lateral demolding. The spatial section below the second support surface 107 can be rotationally demolded. The entire device is integrally formed, and all connections are non-welded, improving the connection reliability between the individual plates and the overall processing dimensional accuracy. At the same time, compared to traditional cast iron track circuit reader mounting devices, the weight and the vibration caused by the heavy weight during driving are reduced, thereby reducing costs. As a cantilever structure, the unique wavy facade design and the weld-free and bolt-free connection of the device mentioned above effectively reduce vibration, greatly improve the strength and fatigue life of the device, reduce maintenance costs, and effectively maintain the stability of the track circuit reader.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose device suitable for installing sensors on rail vehicles, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) comprises: A wavy facade a (101), wherein the wavy facade a (101) is located on a side close to the wheel; The wavy facade b (102) is located on a side away from the wheel, and the wavy facade a (101) and the wavy facade b (102) are used to connect the connection surfaces and the connection ports in series; A connecting surface (103), the connecting surface (103) being located at the upper end of the wavy facade a (101) and the wavy facade b (102) on a side close to the wheel, the connecting surface (103) being used for connecting to the bogie; a first mounting surface (104), the first mounting surface (104) being located at the lower end of the connecting surface (103), the first mounting surface (104) being used for mounting a wheel rim lubrication nozzle; a second mounting surface (105), the second mounting surface (105) being located at the lower ends of the wavy facade a (101) and the wavy facade b (102), the second mounting surface (105) being used for mounting a sensor; A first supporting surface (106), a second supporting surface (107) and a third supporting surface (108), wherein the first supporting surface (106), the second supporting surface (107) and the third supporting surface (108) are arranged between the wavy facade a (101) and the wavy facade b (102) and are arranged from top to bottom, and the first supporting surface (106), the second supporting surface (107) and the third supporting surface (108) are used to increase the structural strength between the connecting surface (103) and the wavy facade a (101) and the wavy facade b (102).

2. A multi-purpose device suitable for installing sensors on rail vehicles according to claim 1, characterized in that: The curvature of the upper portion of the wavy facade a (101) decreases, and the curvature of the upper portion of the wavy facade b (102) is greater than that of the lower portion, forming a structural strong point.

3. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: A boss (1031) is provided on the side of the connecting surface (103) away from the wavy facade a (101) and the wavy facade b (102), and connecting holes (1032) for connecting to the bogie are provided on both sides of the upper and lower ends of the boss (1031) on the connecting surface (103).

4. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: A first mounting hole (1041) for mounting a wheel rim lubrication nozzle is provided on the first mounting surface (104), the first mounting surface (104) forms an angle of 15° with the track surface, and the first mounting surface (104) is connected to and parallel to the second supporting surface (107).

5. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: A through hole (1051) for routing a sensor cable is provided on the second mounting surface (105), a gasket (1052) is provided on the lower end surface of the second mounting surface (105), and a second mounting hole (1053) for mounting a sensor is provided on both the second mounting surface (105) and the gasket (1052).

6. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: The first supporting surface (106) and the third supporting surface (108) are both provided with waist holes (1061), and the first supporting surface (106) forms an angle of 45° with the connecting surface (103).

7. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: The third supporting surface (108) is provided with a pipe clamp fixing hole (1081) for fixing the sensor cable.

8. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: A first reinforcing rib (109), a second reinforcing rib (110), and a third reinforcing rib (111) for force transmission are provided at the connection points of the wavy facade a (101), the wavy facade b (102), and the connecting surface (103).

9. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: The mounting bracket (1) is integrally formed by cast aluminum.

10. The multi-purpose device for installing sensors on rail vehicles according to claim 1, characterized in that: The mounting bracket (1) is divided into two upper and lower spatial parts with the second supporting surface (107) as a reference plane. The upper spatial part of the mounting bracket (1) has a tendency to gradually converge from top to bottom. The wavy vertical surface a (101) and the wavy vertical surface b (102) at the upper end of the second mounting surface (105) in the lower spatial part of the mounting bracket (1) are arranged in parallel. The two curved surfaces of the lower spatial part of the second supporting surface (107) are arcs with the central curve as concentric circles.

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