A detection tooling for the flip footrest hanger of a railway passenger car sliding plug door and its detection method

Abstract

The invention discloses a detection tooling for a swing footrest hanger seat of a railway passenger car and a detection method thereof. The detection tooling comprises a main board. An L-shaped main hanger seat detection board is arranged at one end of one side of the main board. A positioning board matched with the L-shaped main hanger seat detection board is arranged on the L-shaped main hanger seat detection board. An L-shaped auxiliary hanger seat detection board is arranged at one end of the other side of the main board. By designing and developing a special detection tooling and formulating a deviation detection method, the invention can realize the control of the swing function and the lapping amount after the swing footrest is assembled. The use of the tooling can quickly determine the installation interface dimensions of the two hanger seats of the swing footrest, effectively avoid the problems of cumbersome dimension measurement and difficult determination of the positioning reference, thereby effectively reducing the installation problems of the swing footrest and improving the operation safety.

Description

Technical Field

[0001] The present invention relates to the technical field of railway transportation. Specifically, it relates to a detection tooling and a detection method for the swing-down footrest suspension seat of a railway passenger car sliding plug door. Background Art

[0002] At present, swing-down footrests (movable footrests used in conjunction with sliding plug doors on railway passenger cars, which open or flip up in coordination with the opening and closing of the sliding plug doors and are used for passengers to board at low platforms) are often provided on 25K and 25T large railway passenger cars. The swing-down footrests are suspended on the vehicle body steel structure by a pair of mounting suspension seats fixed below the footrest through the vehicle body steel structure.

[0003] After the passenger car has been in use for a certain period, due to various problems such as corrosion and deformation, there are often deviations between the relative positions of the pair of suspension seats of the swing-down footrest and the design standard values. During the vehicle maintenance process, such deviations often manifest as problems such as difficult assembly of the swing-down footrest, stuck flipping action, and small overlap between the footrest and the support platform. During vehicle operation, there will be serious problems such as poor footrest action, inconsistent actions between the sliding plug door and the footrest, and detachment of the swing-down footrest.

[0004] At present, although various standards and technical documents have requirements for the swing-down footrest of the sliding plug door to have flexible opening and closing actions and an overlap that meets the design standards, there is a lack of a convenient and effective detection tooling and method for the dimensions of its steel structure installation interface (suspension seat), that is, there is a lack of tooling and corresponding methods for detecting the positioning deviation of the swing-down footrest mounting seat. How to quickly detect and effectively control this technical index is a difficult problem faced by the entire railway.

[0005] In response to the problems in the related art, no effective solution has been proposed yet. Summary of the Invention

[0006] In response to the problems in the related art, the present invention proposes a detection tooling and a detection method for the swing-down footrest suspension seat of a railway passenger car sliding plug door to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Based on the installation and positioning dimensions of the swing-down footrest of a common sliding plug door of a railway passenger car, the present invention welds positioning baffles at the notch parts of the corresponding rotating shaft box mounting seat and the swing-down footrest secondary suspension seat of the tooling to control the deformation and displacement of the swing-down footrest suspension seat along the transverse and longitudinal directions of the vehicle body. At the same time, by simulating the positioning dimensions of the installation holes of the swing-down footrest, drill holes are made on the positioning baffles, and the installation state can be simulated without installing the swing-down footrest.

[0008] Therefore, the specific technical solution adopted by the present invention is as follows:

[0009] According to one aspect of the present invention, there is provided a detection tool for the swing pedal hanger seat of a railway passenger car sliding plug door, including a main board. One end of the main board is provided with an L-shaped main hanger seat detection board, and a positioning board is arranged on the L-shaped main hanger seat detection board to cooperate with it. The other end of the main board is provided with an L-shaped auxiliary hanger seat detection board.

[0010] Furthermore, through holes for hand gripping during detection are respectively provided on both sides of the top of the main board. A plurality of through holes are provided through the top of the main board, and the through holes are reserved holes, which can be used for positioning the sliding track of the sliding plug door and the fixing screw sleeve of the pedal heating wire box.

[0011] Furthermore, the main board includes a horizontal part; one end of the horizontal part is provided with a first extension part, and an L-shaped main hanger seat detection board is arranged on one side of the first extension part; the other end of the horizontal part is provided with a second extension part, and an L-shaped auxiliary hanger seat detection board is arranged on one side of the second extension part.

[0012] Furthermore, the L-shaped main hanger seat detection board includes a first main hanger seat detection board installed on one side of the first extension part. A second main hanger seat detection board is vertically arranged at one end of the first main hanger seat detection board; a plurality of first positioning holes are provided through one side of the first main hanger seat detection board far from the second main hanger seat detection board, and a clamping groove for cooperating with the positioning board is provided on the top side of the second main hanger seat detection board close to the first main hanger seat detection board.

[0013] Furthermore, one end of the positioning board is movably connected to the first main hanger seat detection board by a rivet, and a plurality of second positioning holes are provided at the other end of the positioning board.

[0014] Furthermore, the L-shaped auxiliary hanger seat detection board includes a first auxiliary hanger seat detection board installed on one side of the second extension part. A plurality of detection holes are provided through the middle of the first auxiliary hanger seat detection board, and a second auxiliary hanger seat detection board is vertically arranged at one end of the first auxiliary hanger seat detection board.

[0015] Furthermore, the side of the first main hanger seat detection board far from the positioning board is connected to the first extension part by a plurality of first rib plates; the side of the first auxiliary hanger seat detection board far from the second auxiliary hanger seat detection board is connected to the second extension part by second rib plates.

[0016] According to another aspect of the present invention, there is provided a detection method using the above-mentioned detection tool for the swing pedal hanger seat of a railway passenger car sliding plug door. The detection method includes the following steps:

[0017] S1. Install the L-shaped main hanger seat detection board: Use a locking bolt to install the positioning board and the L-shaped main hanger seat detection board on the main hanger seat, and make the two groups of detection surfaces on the L-shaped main hanger seat detection board correspond to the two groups of surfaces to be detected on the main hanger seat;

[0018] S2. Determine whether the hanging seat is deformed or displaced: Determine whether the central misalignment value between the bolt hole at the lower part of the auxiliary hanging seat and the detection hole on the first auxiliary hanging seat detection plate is greater than the preset threshold. If not, it is determined that the hanging seat is not deformed or displaced and meets the loading requirements of the flip footrest. If so, it is determined that the hanging seat is deformed or displaced, and the vehicle needs to be reamed or the auxiliary hanging seat needs to be replaced.

[0019] Further, the installation of the L-shaped main hanging seat detection plate includes the installation of the L-shaped main hanging seat detection plate during the detection of the flip footrest at the second and third corner positions and the installation of the L-shaped main hanging seat detection plate during the detection of the flip footrest at the first and fourth corner positions.

[0020] Further, the installation of the L-shaped main hanging seat detection plate during the detection of the flip footrest at the second and third corner positions includes the following steps:

[0021] Rotate the positioning plate clockwise so that it snaps into the card slot on the second main hanging seat detection plate, and use three locking bolts to pass through the bolt holes of the main hanging seat respectively to realize the installation and fixation of the positioning plate and the L-shaped main hanging seat detection plate;

[0022] The installation of the L-shaped main hanging seat detection plate during the detection of the flip footrest at the first and fourth corner positions includes the following steps:

[0023] Rotate the positioning plate counterclockwise and make it contact with the second main hanging seat detection plate, and use three locking bolts to pass through the bolt holes of the main hanging seat respectively to realize the installation and fixation of the positioning plate and the L-shaped main hanging seat detection plate.

[0024] The beneficial effects of the present invention are as follows: By designing and developing a special detection tooling and formulating a deviation detection method, it is possible to control the flipping function and the overlapping amount after the flip footrest is assembled. The use of this tooling can quickly determine the installation interface dimensions of the two hanging seats of the flip footrest, effectively avoid the problems of cumbersome dimension measurement and difficult determination of the positioning reference, thereby effectively reducing the installation problems of the flip footrest and improving the operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic structural diagram of a detection tooling method for the flip footrest hanging seat of a railway passenger car plug door according to an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a detection tooling for the flip footrest hanging seat of a railway passenger car plug door according to an embodiment of the present invention with the positioning plate removed;

[0028] Figure 3 It is a schematic structural diagram of another angle of a detection tool for the flip footrest hanger seat of a railway passenger car door according to an embodiment of the present invention;

[0029] Figure 4 It is a schematic structural diagram of a specific application example of a detection tool for the flip footrest hanger seat of a railway passenger car door according to an embodiment of the present invention;

[0030] Figure 5 It is a schematic structural diagram of another specific application example of a detection tool for the flip footrest hanger seat of a railway passenger car door according to an embodiment of the present invention;

[0031] Figure 6 It is a detection schematic diagram of a detection tool for the flip footrest hanger seat of a railway passenger car door according to an embodiment of the present invention.

[0032] In the figure:

[0033] 1. Main board; 11. Horizontal part; 12. First extension part; 13. Second extension part; 2. L-shaped main hanger seat detection board; 21. First main hanger seat detection board; 22. Second main hanger seat detection board; 23. First positioning hole; 24. Card slot; 3. Positioning board; 31. Rivet; 32. Second positioning hole; 4. L-shaped auxiliary hanger seat detection board; 41. First auxiliary hanger seat detection board; 42. Detection hole; 43. Second auxiliary hanger seat detection board; 5. Process hole; 6. Through hole; 7. First rib; 8. Second rib; A. Main hanger seat; B. Auxiliary hanger seat. Detailed implementation manners

[0034] To further illustrate the embodiments, the present invention provides drawings, which are part of the disclosure of the present invention. They are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0035] According to an embodiment of the present invention, a detection tool and a detection method for the flip footrest hanger seat of a railway passenger car door are provided. It is designed to quickly, effectively and controllably realize the installation interface dimensions of the flip footrest, so as to reduce the installation problems of the flip footrest and improve the operation safety. Moreover, the detection process for the assembly misalignment deviation of the flip footrest is developed for the first time and is applied for the first time in this industry. By designing and developing a special detection tool and formulating a deviation detection method, the control of the flip function and the overlap amount after the flip footrest is assembled can be realized. This invention is applicable to various types of railway passenger cars with flip footrests running at a speed of 160 km / h or less.

[0036] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. As Figures 1 - 5 shown, according to an embodiment of the present invention, a detection tooling for the flip footrest suspension seat of a railway passenger car sliding plug door is provided, which includes a main board 1, formed by welding 2-1Cr18Ni9Ti stainless steel plates. An L-shaped main suspension seat detection plate 2 is provided at one end of the main board 1, and a positioning plate 3 is provided on the L-shaped main suspension seat detection plate 2 for cooperation therewith. An L-shaped auxiliary suspension seat detection plate 4 is provided at the other end of the main board 1. Specifically, when applied, the specifications of this detection tooling are approximately 350mm×110mm×1150mm, and the total weight is approximately 5kg. It has the following three states: non-use state (as Figure 1 shown); second and third flip footrest suspension seat detection state (as Figure 4 shown); first and fourth corner flip footrest suspension seat detection state (as Figure 5 shown).

[0037] Specifically, process holes 5 for manual grasping during detection are penetrated through both sides of the top of the main board 1, and a number of through holes 6 are penetrated through the top of the main board 1, and the through holes 6 are reserved holes, which can be used for the positioning of the sliding chute of the sliding plug door and the fixing screw sleeve of the footrest heating wire box.

[0038] The main board 1 includes a horizontal part 11; one end of the horizontal part 11 is provided with a first extension part 12, and an L-shaped main suspension seat detection plate 2 is provided on one side of the first extension part 12; the other end of the horizontal part 11 is provided with a second extension part 13, and an L-shaped auxiliary suspension seat detection plate 4 is provided on one side of the second extension part 13.

[0039] The L-shaped main suspension seat detection plate 2 includes a first main suspension seat detection plate 21 installed on one side of the first extension part 12, and a second main suspension seat detection plate 22 is vertically provided at one end of the first main suspension seat detection plate 21; a number of first positioning holes 23 are penetrated through the side of the first main suspension seat detection plate 21 away from the second main suspension seat detection plate 22, and a card slot 24 for cooperation with the positioning plate 3 is provided on the top side of the second main suspension seat detection plate 22 close to the first main suspension seat detection plate 21.

[0040] One end of the positioning plate 3 is movably connected to the first main suspension seat detection plate 21 by a rivet 31, and a positioning bolt can normally pass through the inside. A number of second positioning holes 32 are provided at the other end of the positioning plate 3.

[0041] The L-shaped auxiliary suspension seat detection plate 4 includes a first auxiliary suspension seat detection plate 41 installed on one side of the second extension part 13, a number of detection holes 42 are penetrated through the middle of the first auxiliary suspension seat detection plate 41, and a second auxiliary suspension seat detection plate 43 is vertically provided at one end of the first auxiliary suspension seat detection plate 41.

[0042] One side of the first main hanger seat detection plate 21 away from the positioning plate 3 is connected to the first extension part 12 through a plurality of first rib plates 7; one side of the first auxiliary hanger seat detection plate 41 away from the second auxiliary hanger seat detection plate 43 is connected to the second extension part 13 through a second rib plate 8.

[0043] According to another embodiment of the present invention, as Figures 4 - 6 shown, a detection method using the above-mentioned detection tool for the flip footrest hanger seat of a railway passenger car is provided. The detection method includes the following steps:

[0044] S1. Install the L-shaped main hanger seat detection plate: Use the locking bolts to install the positioning plate and the L-shaped main hanger seat detection plate on the main hanger seat A, and make the two groups of detection surfaces on the L-shaped main hanger seat detection plate correspond to the two groups of surfaces to be detected of the main hanger seat;

[0045] Among them, the installation of the L-shaped main hanger seat detection plate includes the installation of the L-shaped main hanger seat detection plate during the detection of the flip footrest hanger seat at the second and third corners and the installation of the L-shaped main hanger seat detection plate during the detection of the flip footrest hanger seat at the first and fourth corners.

[0046] Specifically, the installation of the L-shaped main hanger seat detection plate during the detection of the flip footrest hanger seat at the second and third corners includes the following steps:

[0047] Rotate the positioning plate clockwise so that it is stuck in the card slot on the second main hanger seat detection plate (as Figure 4 shown), and use three M8×30 locking bolts to pass through the lower two and the upper left one of the four bolt holes in the main hanger seat A respectively to realize the installation and fixation of the positioning plate and the L-shaped main hanger seat detection plate;

[0048] The installation of the L-shaped main hanger seat detection plate during the detection of the flip footrest hanger seat at the first and fourth corners includes the following steps:

[0049] Rotate the positioning plate counterclockwise and make it contact with the second main hanger seat detection plate (as Figure 5 shown), and use three M8×30 locking bolts to pass through the upper two and the lower left one of the four bolt holes in the main hanger seat A respectively to realize the installation and fixation of the positioning plate and the L-shaped main hanger seat detection plate.

[0050] S2. Judge whether the hanger seat is deformed or displaced: Judge the relative position between the bolt hole at the lower part of the auxiliary hanger seat B and the detection hole on the first auxiliary hanger seat detection plate (as Figure 6 shown). If the center misalignment between the detection hole on the tooling and the bolt hole of the auxiliary hanger seat is not more than 2 mm, it can be determined that the hanger seat has no deformation or displacement and meets the installation requirements of the flip footrest; when the hole displacement is greater than 2 mm, the hole can be reamed on the spot or the auxiliary hanger seat can be replaced.

[0051] In summary, by means of the above technical solutions of the present invention, through the design and development of a special detection tooling and the formulation of a deviation detection method, it is possible to achieve the control of the flipping function and the overlapping amount after the flipping pedal is assembled. The use of this tooling can quickly determine the installation interface dimensions of the two suspension seats of the flipping pedal, effectively avoiding the problems of cumbersome dimension measurement and difficult determination of the positioning reference, thereby effectively reducing the installation problems of the flipping pedal and improving the operation safety.

[0052] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "tightening" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection tooling for the flip footrest hanger seat of a railway passenger car sliding plug door, comprising a main board (1), characterized in that: One end of one side of the main board (1) is provided with an L-shaped main hanger seat detection board (2), and the two detection surfaces of the L-shaped main hanger seat detection board (2) correspond to the two to-be-detected surfaces of the main hanger seat. A positioning board (3) is arranged on the L-shaped main hanger seat detection board (2) and is matched with it. The other end of one side of the main board (1) is provided with an L-shaped auxiliary hanger seat detection board (4); the main board (1) includes a horizontal part (11), one end of the horizontal part (11) is provided with a first extension part (12), and the L-shaped main hanger seat detection board (2) is arranged on one side of the first extension part (12); Among them, the L-shaped main hanger seat detection board (2) includes a first main hanger seat detection board (21) installed on one side of the first extension part (12), and a second main hanger seat detection board (22) is vertically arranged at one end of the first main hanger seat detection board (21); a plurality of first positioning holes (23) are penetrated through one side of the first main hanger seat detection board (21) far away from the second main hanger seat detection board (22), and a clamping groove (24) matched with the positioning board (3) is opened on the top side of the second main hanger seat detection board (22) close to the first main hanger seat detection board (21); The L-shaped auxiliary hanger seat detection board (4) includes a first auxiliary hanger seat detection board (41), a plurality of detection holes (42) are penetrated through the middle of the first auxiliary hanger seat detection board (41), and when the central misalignment value between the bolt holes at the lower part of the auxiliary hanger seat and the detection holes (42) on the first auxiliary hanger seat detection board (41) is greater than a preset threshold value, it is determined that the hanger seat is deformed or displaced. A second auxiliary hanger seat detection board (43) is vertically arranged at one end of the first auxiliary hanger seat detection board (41).

2. The detection tooling for the flip footrest hanger seat of a railway passenger car door according to claim 1, wherein, Process holes (5) for manual grasping during detection are penetrated through both sides of the top of the main board (1), and a plurality of through holes (6) are penetrated through the top of the main board (1), and the through holes (6) are reserved holes for positioning the sliding lower track of the sliding plug door and the fixing screw sleeve of the footrest heating wire box.

3. The detecting tooling for the turning pedal suspension seat of the plug door of a railway passenger car according to claim 2, characterized in that, The other end of the horizontal part (11) is provided with a second extension part (13), and the L-shaped auxiliary hanger seat detection board (4) is arranged on one side of the second extension part (13).

4. The inspection tooling for the swing footrest hanger seat of a railway passenger car door according to claim 3, characterized in that, One end of the positioning board (3) is movably connected with the first main hanger seat detection board (21) through a rivet (31), and a plurality of second positioning holes (32) are opened at the other end of the positioning board (3).

5. A detection tooling for a swing footrest hanger of a plug door of a railway passenger car according to claim 4, characterized in that, One side of the first main hanger seat detection board (21) far away from the positioning board (3) is connected with the first extension part (12) through a plurality of first rib plates (7); One side of the first auxiliary hanger seat detection board (41) far away from the second auxiliary hanger seat detection board (43) is connected with the second extension part (13) through a second rib plate (8).

6. The detection method of a detection tool for a swing footrest hanger of a plug door of a railway passenger car according to claim 5, characterized in that, This detection method includes the following steps: S1. Install the L-shaped main hanger seat detection board: Use a locking bolt to install the positioning board and the L-shaped main hanger seat detection board on the main hanger seat, and make the two detection surfaces on the L-shaped main hanger seat detection board correspond to the two to-be-detected surfaces of the main hanger seat; S2. Determine whether the hanging seat is deformed or displaced: Determine whether the central misalignment value between the bolt holes at the lower part of the auxiliary hanging seat and the detection holes on the first auxiliary hanging seat detection plate is greater than the preset threshold. If not, it is determined that the hanging seat has no deformation or displacement and meets the vehicle loading requirements for the flipping footrest. If so, it is determined that the hanging seat has been deformed or displaced, and the vehicle needs to ream the hole or replace the auxiliary hanging seat.

7. The detection method of a detection tool for the flip footrest hanger of a plug door on a railway passenger car according to claim 6, characterized in that The installation of the L-shaped main hanging seat detection plate includes the installation of the L-shaped main hanging seat detection plate during the detection of the two- and three-corner flipping footrest hanging seat and the installation of the L-shaped main hanging seat detection plate during the detection of the one- and four-corner flipping footrest hanging seat.

8. The detection method of a detection tool for a flip footrest hanger of a plug door of a railway passenger car according to claim 7, characterized in that, The installation of the L-shaped main hanging seat detection plate during the detection of the two- and three-corner flipping footrest hanging seat includes the following steps: Rotate the positioning plate clockwise so that it snaps into the card slot on the second main hanging seat detection plate, and use three locking bolts to pass through the bolt holes of the main hanging seat respectively to realize the installation and fixation of the positioning plate and the L-shaped main hanging seat detection plate. The installation of the L-shaped main hanging seat detection plate during the detection of the one- and four-corner flipping footrest hanging seat includes the following steps: Rotate the positioning plate counterclockwise and make it contact with the second main hanging seat detection plate, and use three locking bolts to pass through the bolt holes of the main hanging seat respectively to realize the installation and fixation of the positioning plate and the L-shaped main hanging seat detection plate.

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