Graphite type cast steel metro wheel wear grinding and repairing to limit groove diameter measuring scale

Abstract

This utility model relates to the field of measuring the diameter of the wear groove of a wheel after lathe repair. Specifically, it relates to a measuring ruler for the diameter of the wear groove of a graphite-type cast steel urban rail vehicle wheel after lathe repair, comprising: a main ruler with graduation lines along its length; a fixed measuring claw, which is located at the left end of the main ruler and fixedly connected to it, and has a wear groove conforming measuring head on it, the shape of which matches the shape of the wear groove after lathe repair, and is used to fit into the wear groove after lathe repair; and a movable measuring claw auxiliary ruler, which is mounted on the main ruler via a frame, the frame having a first locking part for locking the movable measuring claw auxiliary ruler to the main ruler; the movable measuring claw auxiliary ruler also has a wear groove conforming measuring head on it. It can measure the inner diameter of the outer side of the rim of a graphite-type cast steel urban rail vehicle wheel and can improve the measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the field of measuring the wear and turning diameter of wheel grooves, specifically, to a graphite-type cast steel urban rail wheel wear and turning diameter measuring ruler. Background Technology

[0002] In daily life, the wheels of subway or light rail trains wear down due to prolonged operation. To ensure the safety and stability of the trains, regular wheel inspections and maintenance are necessary. "Wear repair to the limit groove" refers to a specific area where the wheel reaches a predetermined limit after repair.

[0003] However, in this region, the diameter is measured on a special arc surface with a radius of 2mm (similar to a small rounded corner). This irregular shape makes it impossible to accurately measure its diameter using ordinary measuring tools (such as vernier calipers). This leads to problems of low detection efficiency and large errors. Utility Model Content

[0004] The purpose of this utility model is to provide a measuring ruler for the outer inner diameter of the rim of a graphite-type cast steel urban rail vehicle, which can measure the outer inner diameter of the rim of a graphite-type cast steel urban rail vehicle and improve the measurement accuracy.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A graphite-type cast steel urban rail vehicle wheel wear turning gauge to the limit groove diameter measurement tool includes:

[0007] The main scale has graduation lines along its length.

[0008] A fixed measuring claw is provided at the left end of the main scale and is fixedly connected to the main scale. A wear groove contouring measuring head is provided on the fixed measuring claw. The shape of the wear groove contouring measuring head matches the shape of the wheel wear turning groove. The wear groove contouring measuring head is used to be inserted into the wheel wear turning groove.

[0009] The movable measuring jaw auxiliary scale is mounted on the main scale via a frame. The frame is provided with a first locking part for locking the movable measuring jaw auxiliary scale and the main scale. The movable measuring jaw auxiliary scale is also provided with a wear groove contour measuring head.

[0010] Furthermore, it also includes a fine-tuning frame, which is disposed at the right end of the main scale. The fine-tuning frame is sleeved on the outside of the main scale and can move along the main scale. The fine-tuning frame is provided with a second locking part for locking and fixing the fine-tuning frame to the main scale.

[0011] The fine-tuning frame is located on the right side of the movable measuring claw auxiliary scale;

[0012] A transverse structure is connected between the movable measuring claw auxiliary scale and the fine-tuning scale frame. The transverse structure is used to drive the movable measuring claw auxiliary scale to move laterally along the main scale.

[0013] Furthermore, the lateral movement structure employs a fine-tuning screw, and the frame is threadedly connected to the fine-tuning screw. Rotating the fine-tuning screw can drive the movable measuring claw auxiliary scale to move laterally along the main scale to finely adjust the position of the movable measuring claw auxiliary scale.

[0014] Furthermore, the lateral movement structure employs a hydraulic cylinder, an electric push rod, or a telescopic cylinder.

[0015] Furthermore, the fixed measuring claw and the main scale are an integral structure, and the wear groove contour measuring head is provided at the bottom of the fixed measuring claw;

[0016] The wear groove contour probe is installed at the bottom of the movable measuring claw auxiliary scale.

[0017] Furthermore, the top of the wear groove contour probe is fixedly connected to the fixed probe claw and is an integrally formed structure.

[0018] Furthermore, the outer wall of the wear groove contour probe includes an arc surface, a bottom plane, and an inclined surface connected in sequence. The bottom plane is the bottom surface of the wear groove contour probe, and the arc surface and the inclined surface are located on both sides of the bottom plane, respectively.

[0019] Furthermore, the radius of the arc surface is 2mm, and the angle between the inclined surface and the horizontal plane is 45°.

[0020] Furthermore, the length of the main scale ranges from 850 to 1000 mm.

[0021] Furthermore, both the first locking part and the second locking part use fastening bolts.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] The measuring ruler of this application is designed with two special probes at each end, namely wear groove contour probes. The shape of the wear groove contour probes is perfectly matched with the shape of the wear groove of the wheel. In this way, when measuring the diameter of the wear groove, the wear groove contour probes can fit tightly against the inner wall of the wear groove, ensuring the accuracy of the measurement. Compared with the prior art, it can improve the measurement accuracy. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an isometric drawing of the wheel wear turning gauge to the limit groove diameter measuring ruler of this utility model;

[0026] Figure 2 This is a front view of the wheel wear turning gauge to the limit groove diameter measuring ruler of this utility model;

[0027] Figure 3 This utility model Figure 2 Enlarged view of the structure of frame AA in the middle;

[0028] Figure 4 This utility model Figure 2 Enlarged view of the structure of the middle BB frame;

[0029] Figure 5 This is an isometric drawing of the measuring ruler of this utility model, showing the actual measurement of wheel wear and turning to the limit groove diameter;

[0030] Figure 6 This is a front view of the measuring ruler of this utility model measuring wheel wear and turning to the limit groove diameter;

[0031] Figure 7 This is a cross-sectional view of the measuring ruler of this utility model measuring wheel wear and turning to the limit groove diameter;

[0032] Figure 8 This utility model Figure 7 Enlarged view of the structure at point C;

[0033] Figure 9 This is a diagram showing some dimensions on the measuring ruler of this utility model (the units of the dimensions are millimeters).

[0034] In the picture:

[0035] 1 - Main scale; 101 - Scale line;

[0036] 2-Fixed measuring jaws;

[0037] 3-Modular measuring jaw auxiliary scale; 301-Frame; 302-First locking part;

[0038] 4- Wear groove contour probe; 401- Arc surface; 402- Bottom plane; 403- Inclined surface.

[0039] 5-Fine-adjustment frame; 501-Second locking part;

[0040] 6-Transverse movement structure; 7-Wearing turning to the limit groove. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] Example 1

[0049] Reference Figures 1-9 This embodiment provides a graphite-type cast steel urban rail vehicle wheel wear turning gauge to the limit groove diameter 7, comprising:

[0050] Main scale 1, with scale lines 101 provided along its length direction, the scale lines 101 being engraved along the length direction of the main scale 1;

[0051] A fixed measuring claw 2 is provided at the left end of the main scale 1 and is fixedly connected to the main scale 1. A wear groove contouring measuring head 4 is provided on the fixed measuring claw 2. The shape of the wear groove contouring measuring head 4 matches the shape of the wheel wear turning groove 7. The wear groove contouring measuring head 4 is used to be inserted into the wheel wear turning groove 7.

[0052] The movable measuring claw auxiliary ruler 3 is mounted on the main ruler 1 via a frame 301. The frame 301 is provided with a first locking part 302 for locking the movable measuring claw auxiliary ruler 3 and the main ruler 1. The movable measuring claw auxiliary ruler 3 is also provided with a wear groove contour measuring head 4.

[0053] It also includes a fine-tuning frame 5, which is located at the right end of the main ruler 1. The fine-tuning frame 5 is sleeved on the outside of the main ruler 1 and can move along the main ruler 1. The fine-tuning frame 5 is provided with a second locking part 501 for locking and fixing the fine-tuning frame 5 to the main ruler 1.

[0054] The fine-tuning frame 5 is located on the right side of the movable measuring claw auxiliary scale 3;

[0055] A transverse structure 6 is connected between the movable measuring claw auxiliary scale 3 and the fine-tuning scale frame 5. The transverse structure 6 is used to drive the movable measuring claw auxiliary scale 3 to move laterally along the main scale 1.

[0056] Preferably, the transverse structure 6 adopts a fine-tuning screw, and the frame 301 is threadedly connected to the fine-tuning screw. Rotating the fine-tuning screw can drive the movable measuring claw sub-scale 3 to move laterally along the main scale 1 to fine-tune the position of the movable measuring claw sub-scale 3.

[0057] In this embodiment, the fixed measuring claw 2 and the main scale 1 are an integral structure, and the wear groove contour measuring head 4 is provided at the bottom of the fixed measuring claw 2;

[0058] The wear groove contour probe 4 is provided at the bottom of the movable measuring claw scale 3.

[0059] The top of the wear groove contour probe 4 is fixedly connected to the fixed probe claw 2 and is an integrally formed structure.

[0060] The outer wall of the wear groove contour probe 4 includes an arc surface 401, a bottom plane 402 and an inclined plane 403 connected in sequence. The bottom plane 402 is the bottom surface of the wear groove contour probe 4, and the two sides of the bottom plane 402 are the arc surface 401 and the inclined plane 403, respectively.

[0061] The radius of the arc surface 401 is 2mm, which matches the arc surface 401 that is worn and turned to the inner wall of the limiting groove 7; the angle between the inclined surface 403 and the horizontal plane is 45°, which matches the inclined surface 403 that is worn and turned to the inner wall of the limiting groove 7. Figure 7 and Figure 8 As shown, the cross-sectional shape of the wheel wear groove 7 is consistent with the cross-sectional shape of the wear groove contouring probe 4. Therefore, the arc surface 401, bottom plane 402, and inclined surface 403 of the wear groove contouring probe 4 can be respectively attached to the arc surface 401, bottom plane 402, and inclined surface 403 inside the wear groove 7. In this way, the wear groove contouring probe 4 can fit tightly against the inner wall of the wear groove 7, ensuring the accuracy of the measurement.

[0062] In this embodiment, the length of the main scale 1 ranges from 850 to 1000 mm. Preferably, the length of the main scale 1 is designed to be 920 mm. Figure 9 As shown.

[0063] In this embodiment, both the first locking part 302 and the second locking part 501 are fastening bolts. The top of the frame 301 has bolt holes for assembling the first locking part 302. After the first locking part 302 is tightened, it can press against the main scale 1 to lock the movable measuring claw auxiliary scale 3. The fine-tuning scale frame 5 has bolt holes that match the second locking part 501. After the second locking part 501 is tightened, it can press against the main scale 1 to lock the fine-tuning scale frame 5.

[0064] The steps for measuring the diameter of groove 7 after wear refinishing are as follows:

[0065] The entire wear groove is turned to form an annular groove 7. The wear groove contouring probe 4 with the fixed measuring claw 2 and the wear groove contouring probe 4 with the movable measuring claw auxiliary ruler 3 are respectively placed into the wear groove 7 of the wheel wear milling, with the two wear groove contouring probes 4 located on opposite sides of the wear groove 7 in the radial direction. Figure 5 As shown. Tighten the second locking part 501 on the fine-tuning scale frame 5 and rotate the fine-tuning screw connected to the movable measuring claw auxiliary scale 3. With the wear groove contouring probe 4 on the fixed measuring claw 2 as the fixed end, adjust the wear groove contouring probe 4 on the movable measuring claw auxiliary scale 3 by moving it radially along the wear groove 7 of the wheel to achieve accurate detection of the diameter of the wear groove 7 of the graphite cast steel urban rail wheel.

[0066] In summary, to address the problems mentioned in the background section, this embodiment proposes a dedicated measuring ruler, characterized by achieving accurate measurement through a "wear groove contour probe 4". Specifically:

[0067] 1. Contouring probe design:

[0068] Two special probes, namely wear groove contour probes 4, are designed at each end of the measuring ruler. Their shapes perfectly match the shape of the wear groove 7 on the wheel. In this way, the wear groove contour probes 4 can fit tightly against the inner wall of the groove, ensuring the accuracy of the measurement.

[0069] 2. Adjustable structure:

[0070] The measuring scale includes a main scale 1 and a movable jaw auxiliary scale 3. The movable jaw auxiliary scale 3 can be moved slightly laterally left and right by a fine-tuning screw. This allows for precise adjustment of the position of the wear groove contouring probe 4, adapting to different sizes of wear turning to the groove diameter of the limit groove 7.

[0071] 3. Operating steps:

[0072] Place the wear groove contouring probe 4 on the fixed measuring claw 2 into the wheel wear turning tool and turn it to one side of the limiting groove 7;

[0073] Next, place the wear groove contour probe 4 on the movable measuring claw auxiliary scale 3 into the wear turning tool and turn it to the opposite side of the limit groove 7;

[0074] Adjust the fine-tuning screw to move the movable measuring claw scale 3 radially along the wear groove 7 until the wear groove contour measuring head 4 just contacts the other edge of the wear groove 7.

[0075] At this point, the scale on the main scale 101 shows the diameter of the wear-repaired groove 7.

[0076] Advantages of this measuring ruler;

[0077] High precision: Due to the use of two wear groove contour probes 4 with opposite settings, it can perfectly fit the arc surface 401 of the wear groove 7, avoiding the error caused by shape mismatch of ordinary tools (such as vernier calipers).

[0078] Easy to operate: The entire measurement process only requires a few simple steps, making it suitable for rapid on-site testing.

[0079] Highly adaptable: Specifically designed for graphite-type cast steel urban rail wheels to meet practical application needs.

[0080] Application scenarios:

[0081] This technology is mainly used in the wheel maintenance and inspection work of rail transit such as subways and light rails. It can help technicians determine whether the wheels have reached the turning limit more efficiently and accurately, thereby ensuring the safe operation of trains.

[0082] Summarize:

[0083] In short, this solution addresses the difficulty in measuring the diameter of wheel wear grooves by designing a specialized measuring ruler with a contour probe. Its emergence not only improves measurement accuracy but also simplifies the operation process, making it a highly practical technological innovation.

[0084] Example 2

[0085] The difference between this embodiment and embodiment 1 is that the transverse movement structure 6 in this embodiment adopts a hydraulic cylinder, an electric push rod, or a telescopic cylinder, which drives the movable measuring claw auxiliary scale 3 to move laterally along the main scale 1.

[0086] The beneficial effects of the technical solution of this utility model are:

[0087] The measuring ruler of this application is designed with two special probes at each end, namely the wear groove contour probe 4. The shape of the wear groove contour probe 4 is perfectly matched with the shape of the wear groove 7 of the wheel. In this way, when measuring the diameter of the wear groove 7, the wear groove contour probe 4 can fit tightly against the inner wall of the wear groove 7, ensuring the accuracy of the measurement. Compared with the prior art, it can improve the measurement accuracy.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0089] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler, characterized in that, include: Main scale (1), with scale lines (101) provided on the main scale (1) along its length direction; A fixed measuring claw (2) is provided on the left end of the main scale (1) and is fixedly connected to the main scale (1). A wear groove contouring measuring head (4) is provided on the fixed measuring claw (2). The shape of the wear groove contouring measuring head (4) matches the shape of the wheel wear turning groove (7). The wear groove contouring measuring head (4) is used to be placed into the wheel wear turning groove (7). The movable jaw scale (3) is mounted on the main scale (1) via a frame (301). The frame (301) is provided with a first locking part (302) for locking the movable jaw scale (3) and the main scale (1). The movable jaw scale (3) is also provided with a wear groove contour probe (4).

2. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 1, characterized in that, It also includes a fine-tuning frame (5), which is located at the right end of the main ruler (1). The fine-tuning frame (5) is fitted on the outside of the main ruler (1) and can move along the main ruler (1). The fine-tuning frame (5) is provided with a second locking part (501) for locking the fine-tuning frame (5) and the main ruler (1) together. The fine-tuning frame (5) is located on the right side of the movable measuring claw auxiliary scale (3); A transverse structure (6) is connected between the movable measuring claw subscale (3) and the fine-tuning scale frame (5). The transverse structure (6) is used to drive the movable measuring claw subscale (3) to move laterally along the main scale (1).

3. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 2, characterized in that, The transverse structure (6) uses a fine-tuning screw. The frame (301) is threadedly connected to the fine-tuning screw. Rotating the fine-tuning screw can drive the movable measuring claw subscale (3) to move laterally along the main scale (1) to fine-tune the position of the movable measuring claw subscale (3).

4. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 2, characterized in that, The transverse structure (6) uses a hydraulic cylinder, an electric push rod, or a telescopic cylinder.

5. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 1, characterized in that, The fixed measuring claw (2) and the main scale (1) are an integral structure, and the wear groove contour measuring head (4) is provided at the bottom of the fixed measuring claw (2). The wear groove contour probe (4) is installed at the bottom of the movable measuring claw auxiliary scale (3).

6. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 1, characterized in that, The top of the wear groove contour probe (4) is fixedly connected to the fixed probe claw (2) and is an integrally formed structure.

7. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 1, characterized in that, The outer wall of the wear groove contour probe (4) includes an arc surface (401), a bottom plane (402) and an inclined plane (403) connected in sequence. The bottom plane (402) is the bottom surface of the wear groove contour probe (4), and the two sides of the bottom plane (402) are the arc surface (401) and the inclined plane (403) respectively.

8. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 7, characterized in that, The radius of the arc surface (401) is 2mm, and the angle between the inclined surface (403) and the horizontal plane is 45°.

9. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 1, characterized in that, The length range of the main scale (1) is 850~1000mm.

10. The graphite-type cast steel urban rail wheel wear turning groove (7) diameter measuring ruler according to claim 2, characterized in that, Both the first locking part (302) and the second locking part (501) are fastening bolts.

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