Vehicle body width measuring device for rail transit vehicle
By designing a measuring device including an "L" main pole body, the accuracy of measuring the external width of the rail transit vehicle body is solved, and fast and accurate dimensional measurement and control are achieved, reducing production costs.
Patent Information
- Application Number
- CN202420893781.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Existing tools cannot accurately measure the maximum dimension value between the two arc surfaces of the external body of the intercity EMU of rail transit vehicles, resulting in large measurement errors, affecting the delivery and operation of the vehicle, and poor dimensional control, increasing production costs.
A measuring device including the "L" type main rod body is designed. The main rod body consists of a cross rod, a vertical rod, a slide rod and a vertical rod, equipped with a scale ruler and a disc-type horizontal angle meter, which is realized by locking nuts and plum handles. Locking and adjustment of the pull rod ensures measurement accuracy.
It realizes rapid and accurate measurement of the external width of the intercity EMU, reduces measurement errors, ensures dimensional control, and reduces production costs and resource waste.
Smart Images
Figure CN222211478U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail transit vehicle measurement, in particular to a rail transit vehicle body width measuring device. Background Art
[0002] Aluminum alloy car body is the core component of rail transit vehicles. After the car body is assembled, all dimensions should meet the requirements of car body manufacturing technical conditions. The height and external width of the car body are key control dimensions. Since the intercity EMU (uniform type) cars with a speed of 200 kilometers per hour and 160 kilometers per hour are high-speed vehicles, the design structure is different from that of subway vehicles. The intercity EMU (uniform type) cars are streamlined and arc-shaped on both sides. The outer side of the car body has an arc. The measurement position at the widest part of the outer side cannot accurately measure the maximum size value between the two arc surfaces using existing tools. The measurement will have a large error. If the size exceeds the tolerance, it will not be able to pass the locomotive vehicle limit, affecting the delivery and operation of the vehicle. If the size is too small, it will affect the installation of the wall panels, partition doors, seats, etc. in the later process. Therefore, it is essential to implement, quickly and accurately measure the external width of the intercity EMU (uniform type) car. Effective size control is an important link to ensure the stability of the car body quality. It can also avoid a series of rework, repair, repeated measurement, etc. caused by size deviation, and reduce the waste of production costs. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a device that can quickly and accurately measure the width of a rail transit vehicle body.
[0004] The utility model discloses a rail transit vehicle body width measuring device, which comprises an "L"-shaped main rod body, wherein the main rod body comprises a cross rod and a vertical rod, and the end of the cross rod away from the vertical rod is hollow, and an "L"-shaped pull rod is inserted into the end of the cross rod away from the vertical rod, and the pull rod comprises a sliding rod and a vertical rod, and the sliding rod is inserted into the hollow shape of the cross rod, and a scale is horizontally arranged on the sliding rod, and a horizontal angle meter is arranged on the vertical rod and the end of the cross rod away from the vertical rod is provided with a locking nut, and the locking nut can pass through the cross rod and extend into the hollow shape and press on the sliding rod, so as to lock the position of the pull rod.
[0005] According to some embodiments of the present utility model, the vertical rod is vertically connected to the end of the horizontal rod.
[0006] According to some embodiments of the present utility model, the vertical rod is vertically connected to the end of the sliding rod.
[0007] According to some embodiments of the present utility model, the horizontal angle meter is a disc-type horizontal angle meter.
[0008] According to some embodiments of the utility model, the horizontal angle meter is adhesively fixed to the upright pole and the vertical pole.
[0009] According to some embodiments of the utility model, a plum blossom handle is connected to the locking nut.
[0010] According to some embodiments of the present invention, the cross-section of the cross bar is square.
[0011] According to some embodiments of the utility model, the vertical rod is in the shape of a flat bar and is fixedly connected to the horizontal rod.
[0012] According to some embodiments of the present invention, the cross section of the sliding rod is square.
[0013] According to some embodiments of the present utility model, the vertical rod is in a flat strip shape and is fixedly connected to the sliding rod.
[0014] The utility model has at least the following beneficial effects: the utility model has good versatility and can be applied to the measurement of the external width of the vehicle body after the vehicle body assembly of each intercity EMU (standard type) is completed. The product can effectively solve the problems that the existing tools cannot accurately measure the maximum dimension value between two curved surfaces, the measurement is difficult, the measurement value has a large deviation, so that the dimension will not pass the locomotive vehicle limit if the dimension exceeds the tolerance, affecting the delivery and operation of the vehicle, or the installation of the wallboard, partition door, seat, etc. in the later process. Effective dimension measurement and dimension control can reduce production costs and reduce resource waste.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:
[0017] Figure 1 It is a structural schematic diagram of the utility model.
[0018] Figure 2 This is a reference diagram of the use status of the utility model. DETAILED DESCRIPTION
[0019] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.
[0020] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0021] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0023] Reference Figure 1 A device for measuring the width of a rail transit vehicle body, comprising an L-shaped main rod body 1, the main rod body 1 comprising a crossbar 11 and a vertical rod 12, the vertical rod 12 being vertically connected to the end of the crossbar 11. The end of the crossbar 11 away from the vertical rod 12 is hollow, and the end of the crossbar 11 away from the vertical rod 12 is plugged with an L-shaped pull rod 2, the pull rod 2 comprising a slide bar 21 and a vertical rod 22, the vertical rod 22 being vertically connected to the end of the slide bar 21. The slide bar 21 is plugged into the hollow of the crossbar 11, and a scale 23 is horizontally arranged on the slide bar 21, and a horizontal angle meter 3 is arranged on both the vertical rod 12 and the vertical rod 22, and the horizontal angle meter 3 is a disc-type horizontal angle meter, which is respectively bonded to the horizontal surfaces of the vertical rod 12 and the vertical rod 22. The horizontal angle meter 3 is bonded and fixed to the vertical rod 12 and the vertical rod 22. The cross bar 11 is provided with a locking nut 4 at one end away from the vertical bar 12. For easy adjustment, a plum blossom handle 41 is connected to the locking nut 4. The locking nut 4 can pass through the cross bar 11, extend into the hollow space and press against the slide bar 21, thereby locking the position of the pull rod 2.
[0024] In order to ensure the strength of the product, the cross bar 11 and the slide bar 21 have a square cross section. In addition, in order to save materials and reduce weight, the vertical bar 12 is a flat bar and is fixedly connected to the cross bar 11. The vertical bar 22 is a flat bar and is fixedly connected to the slide bar 21. Of course, it can also be integrally formed as needed.
[0025] Reference Figure 2The slide bar 21 is inserted into the hollow shape of the cross bar 11, and a scale 23 is horizontally arranged on the slide bar 21. The 0 scale on the scale 23 is flush with the inner end surface of the vertical rod 22 of the pull rod 2, and the scale 23 cooperates with the end surface of the cross bar 11 away from the vertical rod 12 to read the reading.
[0026] During measurement, the pull rod 2 is pulled apart according to the width of the measured vehicle body, and the length can be adjusted according to the width of the measured vehicle; the vertical rod 12 and the vertical rod 22 are respectively clamped on both sides of the vehicle body, which can effectively ensure that the contact position is the most convex point of the arc and avoid deviation in the measurement point selection; the device is also equipped with a horizontal angle meter 3, and by observing the scale of the horizontal angle meter 3, it is checked whether the tooling is kept level with the vehicle body frame, which effectively avoids the tilt of the inspection tool and causes errors in the measurement data; the locking nut 4 can be adjusted to limit the sliding stroke of the pull rod 2. When the measuring point is determined, the pull rod 2 can be positioned by the locking nut 4, and the width measurement value can be read by the scale 23 on the slide rod 21. Compared with the existing technology, the utility model has good versatility and can be applied to the measurement of the external width of the vehicle body after the vehicle body assembly of each intercity EMU (standard type) is completed. The product can effectively solve the problems that the existing tools cannot accurately measure the maximum dimension value between two curved surfaces, the measurement is difficult, and the measurement value has a large deviation, so that the dimension will not pass the locomotive vehicle limit if the dimension exceeds the tolerance, affecting the delivery and operation of the vehicle, or the installation of the wallboard, partition door, seat, etc. in the later process. Effective dimension measurement and dimension control can reduce production costs and reduce resource waste.
[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A rail transit vehicle body width measuring device, It is characterized in that The invention comprises an L-shaped main rod body (1), wherein the main rod body (1) comprises a cross rod (11) and a vertical rod (12), wherein one end of the cross rod (11) away from the vertical rod (12) is hollow, and one end of the cross rod (11) away from the vertical rod (12) is plugged with an L-shaped pull rod (2), wherein the pull rod (2) comprises a sliding rod (21) and a vertical rod (22), wherein the sliding rod (21) is plugged into the middle of the cross rod (11). In the hollow shape, the slide bar (21) is horizontally provided with a scale (23), the vertical rod (12) and the vertical rod (22) are both provided with a horizontal angle meter (3), and the end of the cross bar (11) away from the vertical rod (12) is provided with a locking nut (4), and the locking nut (4) can pass through the cross bar (11) and extend into the hollow shape and press on the slide bar (21), thereby locking the position of the pull rod (2).
2. A rail transit vehicle body width measuring device according to claim 1, It is characterized in that The vertical rod (12) is vertically connected to the end of the horizontal rod (11).
3. A rail transit vehicle body width measuring device according to claim 1, It is characterized in that The vertical rod (22) is vertically connected to the end of the sliding rod (21).
4. A rail transit vehicle body width measuring device according to claim 1, It is characterized in that The horizontal angle meter (3) is a disc-type horizontal angle meter.
5. A rail transit vehicle body width measuring device according to claim 1, It is characterized in that The horizontal angle meter (3) is bonded and fixed to the vertical pole (12) and the vertical pole (22).
6. A rail transit vehicle body width measuring device according to claim 1, It is characterized in that The locking nut (4) is connected to a plum blossom handle (41).
7. A rail transit vehicle body width measuring device according to claim 1, It is characterized in that The cross-section of the cross bar (11) is square.
8. A rail transit vehicle body width measuring device according to claim 7, It is characterized in that The vertical rod (12) is in the shape of a flat bar and is fixedly connected to the horizontal rod (11).
9. A rail transit vehicle body width measuring device according to claim 1, It is characterized in that The cross section of the sliding rod (21) is square.
10. A rail transit vehicle body width measuring device according to claim 9, It is characterized in that The vertical rod (22) is in the shape of a flat bar and is fixedly connected to the sliding rod (21).