Railway vehicle wheel inside distance laser measuring instrument

Abstract

The invention relates to the technical field of railway vehicles, and discloses a railway vehicle wheel inner side distance laser measuring instrument which comprises an axle, hubs fixedly connected to the outer walls of the two ends of the axle, an adjusting mechanism which comprises a first hydraulic rod arranged outside the hubs, a second hydraulic rod arranged outside the hubs, a fixing block fixedly connected to the outer surface of the first hydraulic rod in a sleeving mode, and a laser measuring device. A first fixing shaft is fixedly connected to the outer wall of the side, away from the hub, of the fixing block, a first clamping rod is fixedly connected to the output end of the first hydraulic rod, and a first connecting frame is fixedly connected to the outer wall of the side, away from the first hydraulic rod, of the first clamping rod. Hubs with different diameters and thicknesses are stably clamped through the adjusting mechanism, and meanwhile, the position of the laser measurer is accurately adjusted through the detection mechanism, so that the laser measurer can carry out distance detection on different positions of the hubs, and the accuracy of laser detection on the inner sides of the hubs is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, in particular to a laser measuring instrument for measuring the inner side distance of a wheel of a rail vehicle. Background Art

[0002] The rail vehicle wheel inside distance laser measuring instrument is a precision measuring device based on laser technology. It is mainly used to quickly and accurately detect the inside distance of rail vehicle wheels. The instrument adopts a non-contact measurement method, can obtain data in real time and automatically analyze it to ensure that the inside distance of the wheels meets the standards and ensure the safety of train operation. Its high precision and high efficiency make it widely used in the maintenance and inspection of rail vehicles such as railways and subways, significantly improving the detection efficiency and accuracy. It is an important tool for the safe operation and maintenance of rail transportation.

[0003] Patent application number CN202221358790.7 discloses a laser measuring instrument for the inner side distance of a rail vehicle wheel, comprising: a base, a positioning device, a limiting device, a laser probe and a starting device; the base is clamped on the wheel rim, and the side of the base facing the wheel rim is its inner side; the positioning device is installed on the inner side of the base, and the limiting device is protruded from the inner side of the base; the laser probe is installed on the outer side of the base, and the starting device is installed on the outer side of the base and is electrically connected to the laser probe.

[0004] In summary, when performing maintenance inspections on rail vehicle wheels after operation, the friction between the wheels and the rails may cause wear on the wheel flange and tread, which in turn causes inconsistencies in the distance between the inner sides of the two wheels on the same wheelset. If only a single inspection of the inner side spacing of the wheels is performed, errors may occur in the inspection results, thereby affecting the accuracy of the inspection.

[0005] Therefore, we propose a laser measuring instrument for the inner side distance of railway vehicle wheels. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention provides a rail vehicle wheel inner distance laser measuring instrument to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a rail vehicle wheel inner distance laser measuring instrument, comprising an axle, with wheel hubs fixedly connected to the outer walls of both ends of the axle, comprising: The adjusting mechanism includes a first hydraulic rod arranged on the outside of the wheel hub, a fixed block is fixedly sleeved on the outer surface of the first hydraulic rod, the outer wall of the fixing block on the side away from the wheel hub is fixedly connected to the first fixed shaft, the output end of the first hydraulic rod is fixedly connected to the first clamping rod, the outer wall of the first clamping rod on the side away from the first hydraulic rod is fixedly connected to the first connecting frame, the inner wall of the first connecting frame is fixedly connected to the second hydraulic rod, the output end of the second hydraulic rod is fixedly connected to the second clamping rod, the outer surface of the second clamping rod on the side away from the second hydraulic rod is provided with a groove, and a detection mechanism is provided on the outside of the second clamping rod on the side away from the second hydraulic rod, and the second hydraulic rod is used to push the distance between the second clamping rod and the first clamping rod, so as to clamp and fix wheel hubs of different thicknesses.

[0008] According to the above technical solution, the inner wall of one end of the first connecting frame away from the second hydraulic rod is rotatably connected to a rotating rod via a rotating shaft, and the one end of the rotating rod away from the first connecting frame is rotatably connected to a first sliding block via a rotating shaft. There are two first clamping rods, and the two first clamping rods are respectively fixedly connected to the two conveying ends of the first hydraulic rod, and the first sliding block limits the sliding distance of the two first clamping rods through the rotating rod.

[0009] According to the above technical solution, the first sliding block is movably sleeved on the outer surface of the first fixed shaft, the outer wall of the first sliding block is fixedly connected to a spring, the end of the spring away from the first sliding block is fixedly connected to the first fixed shaft, and the spring is used to assist the first sliding block in resetting.

[0010] According to the above technical solution, the detection mechanism includes a first sliding frame rotatably connected to the outer surface of the second clamping rod, the outer surface of the first sliding frame is fixedly connected to a first motor, the output end of the first motor passes through the first sliding frame and is fixedly connected to a roller, the roller is rotatably connected to the inner wall of the groove, and the first motor causes the first sliding frame to slide on the outer surface of the second clamping rod through the roller.

[0011] According to the above technical solution, a fixing rod is fixedly connected to the top outer wall of the first sliding frame, a second motor is fixedly connected to the outer wall of the fixing rod at one end away from the first sliding frame, an output end of the second motor passes through the fixing rod and is fixedly connected to a rotating shaft, an inner wall of the fixing rod is fixedly connected to a second fixed shaft, an auxiliary component is provided at the output end of the second motor, and there are two fixing rods, which are symmetrically arranged with the central axis of the first sliding frame as the center.

[0012] According to the above technical solution, the auxiliary component includes a second sliding frame slidably connected to the rotating shaft, the inner wall of the second sliding frame at one end away from the rotating shaft is slidably connected to the second fixed shaft, the inner wall of the second sliding frame is fixedly connected to a third hydraulic rod, and the second motor causes the second sliding frame to slide along the outer surface of the second fixed shaft through the rotating shaft, and the second fixed shaft is used to improve the stability of the second sliding frame during movement.

[0013] According to the above technical solution, the output end of the third hydraulic rod is fixedly connected to the second connecting frame, the outer wall of the second connecting frame is fixedly connected to the third motor, the output end of the third motor is fixedly connected to the adjustment frame, and the third motor is used to flip the adjustment frame at an angle.

[0014] According to the above technical solution, a laser measurer is fixedly connected to the end of the adjustment frame away from the third motor, and a laser probe is fixedly connected to the outer wall of the end of the laser measurer away from the adjustment frame. The laser measurer measures the distance of the wheel hubs on both sides of the axle through the laser probe.

[0015] Compared with the prior art, the present invention provides a rail vehicle wheel inner distance laser measuring instrument, which has the following beneficial effects: 1. The present invention provides a laser measuring instrument for measuring the inner side distance of rail vehicle wheels. When performing maintenance and inspection on rail vehicle wheels after operation, an adjustment mechanism securely clamps wheel hubs of different diameters and thicknesses. Simultaneously, a detection mechanism precisely adjusts the position of the laser measuring instrument, enabling the laser measuring instrument to detect the distance between different positions of the wheel hub, thereby improving the accuracy of laser detection of the inner side of the wheel hub.

[0016] 2. The present invention provides an adjustment mechanism. When performing laser inspection on the inner side of the wheel hub of the rail vehicle at both ends of the axle, the first hydraulic rod pushes the first clamping rod to move toward the sides of the wheel hub according to the different diameters of the wheel hub. At the same time, the second hydraulic rod pushes the second clamping rod to move toward the first clamping rod. The first clamping rod and the second clamping rod can clamp and fix the wheel hubs of different diameters and thicknesses.

[0017] 3. The present invention sets a first sliding block and a rotating rod. When the first hydraulic rod pushes the first clamping rod to clamp and fix the outer wall of the wheel hub of different diameters, the first clamping rod drives the rotating rod connected to its inner wall to rotate through the first connecting frame, thereby pushing the first sliding block. The first sliding block slides along the outer surface of the first fixed shaft and squeezes the spring. At the same time, the rotating rod ensures that the sliding distance of the first clamping rod on both sides of the first hydraulic rod is consistent, so that the first fixed shaft and the axis of the wheel hub are kept on the same horizontal line, thereby ensuring the concentricity of the wheel hub and the fixed shaft during the detection process.

[0018] 4. The present invention employs auxiliary components. When measuring the inner clearance between the wheel hubs on both sides of the axle, the first motor drives the first sliding frame to rotate to an appropriate angle via a roller. The second motor then drives the second sliding frame to move via a rotating shaft. The third hydraulic rod pushes the second connecting frame toward the inner side of the wheel hub. Simultaneously, the third motor adjusts the angle of the adjustment frame so that the back of the laser measuring device is in close contact with the inner side wall of the wheel hub. The high-precision detection of the laser probe ensures the accuracy and effectiveness of the wheel hub clearance detection after rail vehicle operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 Schematic diagram of the adjustment mechanism and detection mechanism structure of the present invention Figure 1 ; Figure 3 Schematic diagram of the adjustment mechanism and detection mechanism structure of the present invention Figure 2 ; Figure 4 It is a schematic structural diagram of the regulating mechanism of the present invention; Figure 5 It is a structural schematic diagram of the detection mechanism of the present invention; Figure 6 This is a schematic structural diagram of the first sliding frame and the second motor of the present invention; Figure 7 This is a schematic diagram of the auxiliary component structure of the present invention; Figure 8 For the present invention Figure 2 Schematic diagram of the enlarged structure of A in the figure.

[0020] In the figure: 1. wheel hub; 2. axle; 3. adjusting mechanism; 301. first hydraulic rod; 302. fixed block; 303. first fixed shaft; 304. first clamping rod; 305. first connecting frame; 306. second hydraulic rod; 307. rotating rod; 308. first sliding block; 309. spring; 310. second clamping rod; 311. groove; 4. detecting mechanism; 401. first sliding frame; 402. first motor; 403. roller; 404. fixed rod; 405. second motor; 406. rotating shaft; 407. second fixed shaft; 408. auxiliary component; 4081. second sliding frame; 4082. third hydraulic rod; 4083. second connecting frame; 4084. third motor; 4085. adjusting frame; 4086. laser measuring device; 4087. laser probe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0023] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0024] Example 1: See Figures 1-4 The present invention provides a technical solution: a laser measuring instrument for the inner side distance of a railway vehicle wheel, comprising an axle 2, with a wheel hub 1 fixedly connected to the outer walls of both ends of the axle 2, comprising: The adjustment mechanism 3 includes a first hydraulic rod 301 arranged outside the wheel hub 1, a fixed block 302 is fixedly sleeved on the outer surface of the first hydraulic rod 301, a first fixed shaft 303 is fixedly connected to the outer wall of the fixed block 302 on the side away from the wheel hub 1, an output end of the first hydraulic rod 301 is fixedly connected to a first clamping rod 304, an outer wall of the first clamping rod 304 on the side away from the first hydraulic rod 301 is fixedly connected to a first connecting frame 305, an inner wall of the first connecting frame 305 is fixedly connected to a second hydraulic rod 306, an output end of the second hydraulic rod 306 is fixedly connected to a second clamping rod 310, and a second clamping rod 311 is fixedly connected to the second hydraulic rod 312. A groove 311 is provided on the outer surface of the holding rod 310 on the side away from the second hydraulic rod 306, and a detection mechanism 4 is provided on the outside of the second clamping rod 310 on the side away from the second hydraulic rod 306. When laser detection is performed on the inner side of the rail vehicle wheel hub 1 at both ends of the axle 2, the first hydraulic rod 301 pushes the first clamping rod 304 to move to both sides of the wheel hub 1 according to the different diameters of the wheel hub 1, and at the same time, the second hydraulic rod 306 pushes the second clamping rod 310 to move toward the first clamping rod 304. Through the first clamping rod 304 and the second clamping rod 310, it is possible to achieve a firm clamping of wheel hubs 1 of different thicknesses.

[0025] The inner wall of one end of the first connecting frame 305 away from the second hydraulic rod 306 is rotatably connected to a rotating rod 307 through a rotating shaft, and the end of the rotating rod 307 away from the first connecting frame 305 is rotatably connected to a first sliding block 308 through a rotating shaft. There are two first clamping rods 304, and the two first clamping rods 304 are respectively fixedly connected to the two conveying ends of the first hydraulic rod 301. The first sliding block 308 limits the sliding distance of the two first clamping rods 304 through the rotating rod 307. The first sliding block 308 is movably sleeved on the outer surface of the first fixed shaft 303. The outer wall of the first sliding block 308 is fixedly connected to a spring 309, and the spring 309 is away from the first sliding block 30 One end of 8 is fixedly connected to the first fixed shaft 303, and the spring 309 is used to assist the first sliding block 308 in resetting. When the first hydraulic rod 301 pushes the first clamping rod 304 to clamp and fix the outer wall of the wheel hub 1 with different diameters, the first clamping rod 304 drives the rotating rod 307 connected to its inner wall to rotate through the first connecting frame 305, thereby pushing the first sliding block 308. The first sliding block 308 slides along the outer surface of the first fixed shaft 303 and squeezes the spring 309. At the same time, the rotating rod 307 ensures that the sliding distance of the first clamping rod 304 on both sides of the first hydraulic rod 301 is consistent, so that the first fixed shaft 303 and the axis of the wheel hub 1 are kept on the same horizontal line.

[0026] Example 2: Please refer to Figure 5-Figure 8On the basis of the first embodiment, the present invention provides a technical solution: the detection mechanism 4 includes a first sliding frame 401 rotatably connected to the outer surface of the second clamping rod 310, the outer surface of the first sliding frame 401 is fixedly connected to the first motor 402, the output end of the first motor 402 passes through the first sliding frame 401 and is fixedly connected to the roller 403, the roller 403 is rotatably connected to the inner wall of the groove 311, the first sliding frame 401 and the second clamping rod 310 have the same curvature, thereby ensuring that the first sliding frame 401 moves along the second clamping rod. The outer surface of the rod 310 rotates, the top outer wall of the first sliding frame 401 is fixedly connected to a fixed rod 404, the outer wall of the fixed rod 404 away from the end of the first sliding frame 401 is fixedly connected to a second motor 405, the output end of the second motor 405 passes through the fixed rod 404 and is fixedly connected to a rotating shaft 406, the inner wall of the fixed rod 404 is fixedly connected to a second fixed shaft 407, the output end of the second motor 405 is provided with an auxiliary component 408, the number of the fixed rods 404 is two, the two fixed rods 404 are connected to the first sliding frame The central axis of the frame 401 is arranged symmetrically with respect to the center, and the auxiliary component 408 includes a second sliding frame 4081 slidably connected to the rotating shaft 406, and the inner wall of the end of the second sliding frame 4081 away from the rotating shaft 406 is slidably connected to the second fixed shaft 407, and the inner wall of the second sliding frame 4081 is fixedly connected to the third hydraulic rod 4082, and the second motor 405 causes the second sliding frame 4081 to slide along the outer surface of the second fixed shaft 407 through the rotating shaft 406, and the second fixed shaft 407 is used to increase the movement of the second sliding frame 4081. To ensure stability during the process, the first motor 402 drives the roller 403 to make the first sliding frame 401 slide along the outer surface of the second clamping rod 310, so that the first sliding frame 401 can rotate around the axis of the hub 1, which facilitates the auxiliary component 408 to perform laser detection on the inner side of the rail vehicle hub 1 from multiple angles. The second motor 405 drives the second sliding frame 4081 to slide along the outer surface of the second fixed axis 407 through the rotating shaft 406, so that the laser measurer 4086 can perform accurate laser detection on the inner side of the hub 1 at different heights.

[0027] The output end of the third hydraulic rod 4082 is fixedly connected to the second connecting frame 4083, the outer wall of the second connecting frame 4083 is fixedly connected to the third motor 4084, the output end of the third motor 4084 is fixedly connected to the adjustment frame 4085, the third motor 4084 is used to flip the adjustment frame 4085, the end of the adjustment frame 4085 away from the third motor 4084 is fixedly connected to a laser measurer 4086, the back of the laser measurer 4086 is provided with a laser verticality measuring instrument for detecting whether the inner side of the wheel is vertical, the outer wall of the end of the laser measurer 4086 away from the adjustment frame 4085 is fixedly connected to a laser probe 4087, and the laser measurer 4086 is fixedly connected to the outer wall of the end of the laser measurer 4086 away from the adjustment frame 4085. The distance of the wheel hubs 1 on both sides of the axle 2 is measured by the laser probe 4087. When detecting the inner spacing of the wheel hubs 1 on both sides of the axle 2, the first motor 402 drives the first sliding frame 401 to rotate to a suitable angle via the roller 403. Then, the second motor 405 drives the second sliding frame 4081 to move via the rotating shaft 406. The third hydraulic rod 4082 pushes the second connecting frame 4083 to move toward the inside of the wheel hub 1. At the same time, the third motor 4084 adjusts the angle of the adjustment frame 4085 so that the back of the laser measurer 4086 is as close as possible to the inner wall of the wheel hub 1. The high-precision detection of the laser probe 4087 ensures the accuracy and effectiveness of the wheel hub 1 spacing detection after rail vehicle operation.

[0028] 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.

[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A rail vehicle wheel inner distance laser measuring instrument, comprising an axle (2), wherein the outer walls at both ends of the axle (2) are fixedly connected to wheel hubs (1), characterized in that: include: The adjusting mechanism (3) comprises a first hydraulic rod (301) arranged outside the wheel hub (1), a fixed block (302) is fixedly sleeved on the outer surface of the first hydraulic rod (301), a first fixed shaft (303) is fixedly connected to the outer wall of the fixed block (302) on a side away from the wheel hub (1), an output end of the first hydraulic rod (301) is fixedly connected to a first clamping rod (304), an outer wall of the first clamping rod (304) on a side away from the first hydraulic rod (301) is fixedly connected to a first connecting frame (305), and an inner wall of the first connecting frame (305) is fixedly connected to the outer wall of the first clamping rod (304) on a side away from the first hydraulic rod (301). A second hydraulic rod (306) is fixedly connected to the wall, an output end of the second hydraulic rod (306) is fixedly connected to a second clamping rod (310), a groove (311) is provided on the outer surface of the second clamping rod (310) away from the second hydraulic rod (306), a detection mechanism (4) is provided on the outer side of the second clamping rod (310) away from the second hydraulic rod (306), and the second hydraulic rod (306) is used to push the distance between the second clamping rod (310) and the first clamping rod (304), thereby clamping and fixing wheel hubs (1) of different thicknesses.

2. The laser measuring instrument for the inner side distance of a railway vehicle wheel according to claim 1, characterized in that: The inner wall of one end of the first connecting frame (305) away from the second hydraulic rod (306) is rotatably connected to a rotating rod (307) via a rotating shaft. The end of the rotating rod (307) away from the first connecting frame (305) is rotatably connected to a first sliding block (308) via a rotating shaft. There are two first clamping rods (304). The two first clamping rods (304) are respectively fixedly connected to the two conveying ends of the first hydraulic rod (301). The first sliding block (308) limits the sliding distance of the two first clamping rods (304) through the rotating rod (307).

3. The laser measuring instrument for measuring the inner side distance of a railway vehicle wheel according to claim 2, characterized in that: The first sliding block (308) is movably sleeved on the outer surface of the first fixed shaft (303), and the outer wall of the first sliding block (308) is fixedly connected to a spring (309), and one end of the spring (309) away from the first sliding block (308) is fixedly connected to the first fixed shaft (303), and the spring (309) is used to assist the first sliding block (308) in resetting.

4. The laser measuring instrument for the inner side distance of a railway vehicle wheel according to claim 1, characterized in that: The detection mechanism (4) includes a first sliding frame (401) rotatably connected to the outer surface of the second clamping rod (310), a first motor (402) fixedly connected to the outer surface of the first sliding frame (401), an output end of the first motor (402) passes through the first sliding frame (401) and is fixedly connected to a roller (403), the roller (403) is rotatably connected to the inner wall of the groove (311), and the first motor (402) causes the first sliding frame (401) to slide on the outer surface of the second clamping rod (310) via the roller (403).

5. The laser measuring instrument for the inner side distance of a railway vehicle wheel according to claim 4, characterized in that: A fixing rod (404) is fixedly connected to the top outer wall of the first sliding frame (401); a second motor (405) is fixedly connected to the outer wall of one end of the fixing rod (404) away from the first sliding frame (401); an output end of the second motor (405) passes through the fixing rod (404) and is fixedly connected to a rotating shaft (406); an inner wall of the fixing rod (404) is fixedly connected to a second fixing shaft (407); an auxiliary component (408) is provided at the output end of the second motor (405); there are two fixing rods (404), and the two fixing rods (404) are symmetrically arranged with the central axis of the first sliding frame (401) as the center.

6. The rail vehicle wheel inner distance laser measuring instrument according to claim 5, characterized in that: The auxiliary component (408) includes a second sliding frame (4081) slidably connected to the rotating shaft (406); the inner wall of one end of the second sliding frame (4081) away from the rotating shaft (406) is slidably connected to the second fixed shaft (407); a third hydraulic rod (4082) is fixedly connected to the inner wall of the second sliding frame (4081); the second motor (405) causes the second sliding frame (4081) to slide along the outer surface of the second fixed shaft (407) through the rotating shaft (406); and the second fixed shaft (407) is used to improve the stability of the second sliding frame (4081) during movement.

7. The rail vehicle wheel inner distance laser measuring instrument according to claim 6, characterized in that: The output end of the third hydraulic rod (4082) is fixedly connected to the second connecting frame (4083), the outer wall of the second connecting frame (4083) is fixedly connected to the third motor (4084), the output end of the third motor (4084) is fixedly connected to the adjustment frame (4085), and the third motor (4084) is used to cause the adjustment frame (4085) to perform angle flipping.

8. The rail vehicle wheel inner distance laser measuring instrument according to claim 7, characterized in that: A laser measuring device (4086) is fixedly connected to one end of the adjusting frame (4085) away from the third motor (4084), and a laser probe (4087) is fixedly connected to the outer wall of one end of the laser measuring device (4086) away from the adjusting frame (4085). The laser measuring device (4086) measures the distance of the wheel hubs (1) on both sides of the axle (2) via the laser probe (4087).

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