Rail vehicle headlamp testing device

Abstract

The present application relates to the technical field of rail vehicle detection, and particularly relates to a rail vehicle headlamp testing device, which comprises a mounting base, and further comprises: a headlamp mounting assembly for detachably mounting a headlamp body to be tested; a testing part which is lifted and mounted on a second vertical frame through a lifting assembly, and is driven to move along a horizontal direction by the second vertical frame through a cross beam; a photosensitive moving assembly and a center disc are both provided with an illumination intensity detection device on the corresponding side of the headlamp body; the headlamp mounting assembly cooperates with the horizontally moving testing part, has lifting and adjusting performance, and is convenient for keeping the integrity of the illumination coverage during testing; the testing part is provided with the illumination intensity detection device, can realize the opening and closing adjustment of the testing part, can accurately test the illumination intensity distribution of each part of the coverage, including key indexes such as the illumination uniformity, the edge illuminance attenuation condition and the illumination intensity change under different distances.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicle detection, and in particular to a rail vehicle headlamp testing device. Background Art

[0002] In modern rail transportation systems, as train speeds continue to rise and operating routes continue to expand and diversify, the importance of rail vehicle headlights in ensuring safe and efficient train operation at night and in low-light conditions has become increasingly prominent. They need to provide clear, stable, and sufficiently intense lighting to ensure that drivers can accurately identify track conditions, obstacles, and various signal signs ahead.

[0003] However, current testing methods for rail vehicle headlights have many flaws. On the one hand, some companies still rely on manual visual evaluation to judge the lighting effect of headlights. This method is greatly affected by subjective factors such as visual differences, fatigue level, and experience level of the testers, and cannot guarantee the objectivity and consistency of the evaluation results. On the other hand, although some companies use light intensity sensors for testing, they often only conduct simple and scattered tests on the brightness and illumination range of the headlights, lacking systematic and comprehensiveness. For example, for the specific shape (such as a circle) coverage formed by the headlight after it is illuminated, the existing testing methods cannot accurately test the light intensity distribution of each part of its coverage, including key indicators such as its lighting uniformity, edge illumination attenuation, and light intensity changes at different distances. This makes it difficult to comprehensively evaluate the overall performance of the lamp.

[0004] In summary, there is an urgent need for a more standardized rail vehicle headlight test device to meet the growing demand for rail transit safety. In view of this, we propose a rail vehicle headlight test device. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies mentioned in the above background technology and provide a rail vehicle headlamp testing device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A rail vehicle headlamp testing device includes a mounting base on which a first drive motor is mounted, and further includes:

[0008] A headlamp mounting assembly, comprising a first vertical frame mounted at one end of the mounting base, and a headlamp mounting seat mounted on the first vertical frame by a lifting assembly, the headlamp mounting seat being used for detachably mounting a headlamp body to be tested;

[0009] a testing unit, used for testing the light intensity of the headlamp body, and mounted on the second vertical frame by the lifting assembly, and the second vertical frame drives the testing unit to move horizontally via a crossbeam;

[0010] The testing part includes an annular disk whose center is aligned with the headlamp body, an intermediate ring block and a central disk are sequentially installed inside the annular disk, and a plurality of evenly distributed photosensitive moving components are slidably installed between the annular disk and the intermediate ring block;

[0011] The photosensitive moving component and the central disk are all installed with light intensity detection devices on the corresponding sides of the headlamp body.

[0012] Preferably, a plurality of movable grooves are provided between the annular disk and the intermediate ring block, wherein a sliding rod perpendicular to the center of the annular disk is installed in the movable groove, and a connecting convex plate is provided on the annular disk;

[0013] The photosensitive moving component is slidably installed in the moving groove through the sliding rod.

[0014] Preferably, the photosensitive moving assembly includes a moving block slidably mounted on the slide rod, a supporting plate is mounted on the corresponding end of the moving block and the headlamp body, and a reset unit perpendicular to the center of the annular disk is provided on the moving block.

[0015] Preferably, the intermediate ring block is provided with a U-shaped bracket corresponding to the position of the reset unit, and the reset unit is installed in the U-shaped bracket.

[0016] Preferably, the resetting unit comprises a shrinking chamber seat provided with a rod cavity, and a sealing plate is detachably mounted on the bottom of the shrinking chamber seat;

[0017] A moving rod is inserted into the rod cavity via a spring, and a connecting head is installed on the top end of the moving rod. The connecting head is used for being detachably installed on the moving block.

[0018] Preferably, a slot is provided on the moving block, and a plurality of the moving blocks are detachably mounted with a hoop unit through the slot, and the hoop unit synchronously adjusts the opening and closing of the plurality of the photosensitive moving components to receive the illumination of the headlamp body.

[0019] Preferably, the hoop unit includes a hoop band clamped in the clamping slot, and a hoop shell mounted on any one of the moving blocks;

[0020] An adjusting rod for adjusting the tightness of the hoop band is provided in the hoop shell, and a DC brushed motor whose output shaft is coaxially connected to the adjusting rod is installed on the hoop shell.

[0021] Preferably, silicon photocell panels are installed on the support plate and the central disk as light intensity detection devices.

[0022] Preferably, the lifting assembly includes a connecting frame fixedly mounted on the lamp mounting seat or the connecting protrusion, and a threaded sleeve is mounted on the connecting frame;

[0023] It also includes a fixing frame and a second protrusion mounted on the first vertical frame or the second vertical frame, the fixing frame is mounted with a second drive motor, and the second protrusion is mounted with a second threaded rod coaxially connected to the second drive motor;

[0024] The second threaded rod is threadably mounted in the threaded sleeve.

[0025] Preferably, the mounting base comprises a horizontal frame with vertical support legs mounted below, a first threaded rod is rotatably mounted on the horizontal frame via a first protrusion, and the first drive motor is fixedly connected to the first threaded rod coaxially;

[0026] The crossbeam is fixedly mounted at the top of the second vertical frame, and a third protrusion is provided on the crossbeam, and a threaded hole is provided on the third protrusion for threading on the first threaded rod;

[0027] Slide blocks are installed at both ends of the crossbeam, and slide rails for slidingly installing the slide blocks are provided on the horizontal frame.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. This rail vehicle headlamp test device, through the lamp mounting assembly and the horizontally movable test part, can test the lighting parameters of the headlamp under different distance conditions. It has the function of lifting and lowering adjustment to facilitate maintaining the integrity of the lighting coverage during testing.

[0030] 2. The test section is equipped with a light intensity detection device, which can realize the opening and closing adjustment of the test part, which is conducive to testing lighting parameters in different ranges. It can accurately test the light intensity distribution of each part of its coverage area, including key indicators such as lighting uniformity, edge illumination attenuation, and light intensity changes at different distances, which is conducive to a comprehensive evaluation of the overall performance of the headlamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 This is one of the overall structural diagrams of the present invention;

[0033] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the installation relationship of the lighting installation assembly of the present invention;

[0035] Figure 4 This is the second schematic diagram of the installation relationship of the lighting installation assembly of the present invention;

[0036] Figure 5 This is an exploded view of the installation relationship of the lighting installation assembly of the present invention;

[0037] Figure 6 This is one of the schematic diagrams of the installation relationship of the test unit of the present invention;

[0038] Figure 7 This is the second schematic diagram of the installation relationship of the test unit of the present invention;

[0039] Figure 8 This is an exploded view of the installation relationship of the test unit of the present invention;

[0040] Figure 9 This is an exploded view of the lifting assembly of the present invention;

[0041] Figure 10 This is one of the schematic diagrams of the test unit of the present invention;

[0042] Figure 11 This is the second schematic diagram of the testing unit of the present invention;

[0043] Figure 12 This is one of the diagrams for the test part of the present invention;

[0044] Figure 13 This is the second diagram of the test part of the present invention;

[0045] Figure 14 Schematic diagram of the installation relationship between the photosensitive moving assembly and the hoop unit of the present invention;

[0046] Figure 15 Schematic diagram of the photosensitive moving component of the present invention;

[0047] Figure 16 This is an exploded view of the photosensitive moving assembly of the present invention;

[0048] Figure 17 This is a cutaway exploded view of the photosensitive moving assembly of the present invention;

[0049] Figure 18 Schematic diagram of the hoop unit structure of the present invention.

[0050] The meaning of each number in the figure is:

[0051] 1. First drive motor; 2. Mounting base; 21. Vertical support leg; 22. Horizontal frame; 23. First protrusion; 24. First threaded rod; 25. Slider; 26. Slide rail;

[0052] 3, lamp mounting assembly; 31, lamp mounting seat; 32, first vertical frame; 321, lifting slot; 33, top plate;

[0053] 4, test part; 41, ring type disc; 411, connecting tab; 412, moving slot; 42, intermediate ring block; 421, U-shaped supporting groove; 43, center disc; 44, sliding rod; 45, light sensitive moving assembly; 451, supporting plate; 452, moving block; 4521, clamping groove; 453, reset unit; 4531, retraction cavity seat; 4501, rod cavity; 4532, sealing plate; 4533, spring; 4534, moving rod; 4535, connecting head; 454, silicon photocell plate; 46, hoop unit; 461, hoop shell; 462, hoop belt; 463, adjusting rod; 464, direct current brush motor;

[0054] 5, headlamp body;

[0055] 6, lifting assembly; 61, fixed frame; 62, vertical rail; 63, second driving motor; 64, second protruding block; 65, second threaded rod; 66, connecting frame; 67, threaded sleeve;

[0056] 7, second vertical frame; 8, cross beam; 81, third protruding block; 811, threaded hole. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0058] Please refer to Figures 1-18 The above technical solutions will be described in detail by the following embodiments.

[0059] The rail vehicle headlamp testing device in the embodiment, as shown in the structures of Figure 1 and Figure 2 , comprises a mounting base frame 2 provided with a first driving motor 1, and further comprises:

[0060] The lamp mounting assembly 3, as shown in the structure of Figure 1-Figure 5 , specifically comprises a first vertical frame 32 installed through a top plate 33 at one end of the mounting base frame 2, and the first vertical frame 32 is provided with a lifting slot 321 for installing a lifting assembly 6; specifically, the lifting assembly 6, as shown in the structures of Figure 5 and Figure 9The structure shown is provided with a connecting frame 66 fixedly mounted on the lamp mounting seat 31, and a threaded sleeve 67 is installed on the connecting frame 66; and a second driving motor 63 is installed in the lifting groove 321 through the fixing frame 61, and a vertical rail 62 for slidingly mounting the connecting frame 66 is installed in the lifting groove 321, and a second threaded rod 65 coaxially connected to the second driving motor 63 is installed at the lifting groove 321 in conjunction with the second protrusion 64. The second threaded rod 65 is threadedly installed in the threaded sleeve 67 and driven by the second driving motor 63 to pass through the threaded sleeve 67 and drive the lamp mounting assembly 3 to be lifted and lowered based on the screw principle. The purpose of lifting is to ensure that the lighting coverage can be fully presented during testing, and to prevent the bottom light from being blocked by the ground due to insufficient height of the lamp mounting assembly 3 when the distance is far. In order to facilitate testing of each headlamp body 5, the lamp mounting seat 31 of this embodiment can be detachably installed with the headlamp body 5 for easy replacement.

[0061] The main purpose of the test section 4 is to be able to undertake the circular light coverage area irradiated, test the light intensity at the center of the light coverage area and gradually outward from the edge, so as to judge the uniformity of the lighting and the change of the lighting at different distances, and then comprehensively evaluate the overall performance of the lamp, judge its effective illumination distance, illumination range and intensity, and thus evaluate its applicability on rail vehicles; this embodiment also uses the lifting assembly 6 to realize the lifting of the test section 4 along the second vertical frame 7.

[0062] And in order to be able to test its lighting performance under different distance conditions, this embodiment Figure 1 、 Figure 2 、 Figure 7 and Figure 8 In the structure shown, the second vertical frame 7 drives the test part 4 to move horizontally through the crossbeam 8; specifically, the mounting base 2 includes a horizontal frame 22 with vertical support legs 21 installed below, and a first threaded rod 24 is rotatably installed on the horizontal frame 22 through a first protrusion 23, and the first drive motor 1 is fixedly connected to the first threaded rod 24 coaxially; in this embodiment, the crossbeam 8 is fixedly installed at the top of the second vertical frame 7, and sliders 25 are installed at both ends. The horizontal frame 22 is provided with a slide rail 26 for slidingly installing the slider 25, which cooperates with the third protrusion 81 provided on the crossbeam 8. The third protrusion 81 is provided with a threaded hole 811 for threading on the first threaded rod 24. Under the rotation of the first drive motor 1, the crossbeam 8, the second vertical frame 7 and the test part 4 can be moved as a whole based on the screw principle, thereby realizing the distance adjustment between the headlamp mounting assembly 3. However, it should be noted that the test part 4 needs to be kept aligned with the center of the headlamp body 5 during testing.

[0063] like Figure 10-13As shown in the structure, the test part 4 in this embodiment includes an annular disk 41, and a connecting protrusion 411 is provided on the annular disk 41; an intermediate ring block 42 and a center disk 43 are installed in sequence inside the annular disk 41, and a uniformly distributed moving groove 412 is provided between the annular disk 41 and the intermediate ring block 42; it should be noted that in this embodiment, a slide rod 44 perpendicular to the center of the annular disk 41 is installed in the moving groove 412, and the purpose of setting the slide rod 44 is to limit the hoop unit 46 to achieve uniform synchronous opening and closing, that is, the opened and closed hoop 462 can maintain a circular ring state concentric with the annular disk 41, and then can effectively and accurately test the light intensity of its light dispersion part, and the photosensitive moving component 45 is slidably installed in the moving groove 412 through the slide rod 44.

[0064] Specifically, such as Figure 14-17 As shown in the structure, in this embodiment, the photosensitive moving assembly 45 includes a moving block 452 slidably mounted on the slide rod 44, a support plate 451 is mounted on the end of the moving block 452 corresponding to the headlamp body 5, and a reset unit 453 perpendicular to the center of the annular disk 41 is detachably mounted on the moving block 452; a U-shaped bracket 421 corresponding to the position of the reset unit 453 is provided on the middle ring block 42, as shown in FIG. Figure 11 and Figure 12 As shown in the positional relationship, the reset unit 453 is installed in the U-shaped bracket 421.

[0065] In this embodiment, the reset unit 453 is as follows Figure 17 As shown in the structure, a rod cavity 4501 is provided in the shrinking chamber seat 4531, a sealing plate 4532 is detachably installed at the bottom of the shrinking chamber seat 4531, a moving rod 4534 is inserted into the rod cavity 4501 through a spring 4533, a connector 4535 is installed at the top of the moving rod 4534, and the connector 4535 is detachably installed on the moving block 452; when the spring 4533 of this embodiment does not have the hoop 462 to apply a tightening force inward, the moving block 452 is as shown in FIG. Figure 10 The position shown is pushed to the outer end by spring 4533.

[0066] Cooperate Figure 14-17 As shown in the structure, a plurality of moving blocks 452 are provided with a slot 4521 for clamping the band 462, forming a Figure 14 The installation relationship diagram shows that a hoop shell 461 is installed on a moving block 452, and an adjusting rod 463 is installed in the hoop shell 461 through a DC brush motor 464. The adjusting rod 463 can adjust the tightness of the hoop 462 during rotation, and cooperate with the reset unit 453 to realize the movement of opening and closing along the center, so as to facilitate the testing of light intensity of a larger range of light coverage.

[0067] In this embodiment, silicon photocell panels 454 are installed on both the support plate 451 and the center disk 43 as light intensity detection devices. The working principle of its light intensity testing is that when the silicon photocell panel 454 receives light, it will generate a corresponding potential difference according to the light intensity. These potential difference signals are aggregated and processed through circuit connection to obtain the light intensity parameters of the entire light coverage area, which is relatively less affected by environmental factors. Other embodiments include but are not limited to the use of colorimeters, light intensity meters and other testing devices to realize light testing at different positions of the light coverage surface. The device is conducive to accurately testing the light intensity distribution of various parts of its coverage surface, including key indicators such as its lighting uniformity, edge illumination attenuation, and light intensity changes at different distances.

[0068] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0069] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A rail vehicle headlamp testing device, comprising a mounting base (2) on which a first drive motor (1) is mounted, characterized in that: Also includes: A headlamp mounting assembly (3) comprising a first vertical frame (32) mounted at one end of the mounting base (2), and a headlamp mounting seat (31) mounted on the first vertical frame (32) by a lifting assembly (6), wherein the headlamp mounting seat (31) is used for detachably mounting a headlamp body (5) to be tested; A test portion (4) is used to test the light intensity of the headlamp body (5), and is installed on the second vertical frame (7) by the lifting component (6), and the second vertical frame (7) drives the test portion (4) to move in the horizontal direction through the crossbeam (8); The test section (4) comprises an annular disk (41) whose center is aligned with the headlamp body (5), an intermediate ring block (42) and a central disk (43) are sequentially installed inside the annular disk (41), and a plurality of evenly distributed photosensitive moving components (45) are slidably installed between the annular disk (41) and the intermediate ring block (42); The light-sensitive moving component (45), the center disk (43) and the headlamp body (5) are all equipped with light intensity detection devices on their corresponding sides; A plurality of movable grooves (412) are provided between the annular disk (41) and the intermediate ring block (42), and a sliding rod (44) perpendicular to the center of the annular disk (41) is installed in the movable groove (412); The photosensitive moving assembly (45) includes a moving block (452) slidably mounted on the slide rod (44), a supporting plate (451) is mounted on the corresponding end of the moving block (452) and the headlamp body (5), and a reset unit (453) is provided on the moving block (452) perpendicular to the center of the annular disk (41); The moving block (452) is provided with a slot (4521), and a plurality of the moving blocks (452) are detachably mounted with a hoop unit (46) through the slot (4521). The hoop unit (46) comprises a hoop band (462) mounted in the slot (4521), and a hoop shell (461) mounted on any one of the moving blocks (452); The hoop unit (46) synchronously adjusts the opening and closing of the plurality of light-sensitive movable components (45) to receive the illumination of the headlamp body (5).

2. The rail vehicle headlamp testing device according to claim 1, wherein: The annular disk (41) is provided with a connecting protrusion (411); The photosensitive moving component (45) is slidably mounted in the moving groove (412) via the sliding rod (44).

3. The rail vehicle headlamp testing device according to claim 1, wherein: The intermediate ring block (42) is provided with a U-shaped bracket (421) corresponding in position to the reset unit (453), and the reset unit (453) is installed in the U-shaped bracket (421).

4. The rail vehicle headlamp testing device according to claim 1, wherein: The resetting unit (453) comprises a retractable chamber seat (4531) provided with a rod cavity (4501), and a sealing plate (4532) is detachably mounted on the bottom of the retractable chamber seat (4531); A moving rod (4534) is inserted into the rod cavity (4501) via a spring (4533), and a connector (4535) is installed at the top end of the moving rod (4534). The connector (4535) is used for being detachably mounted on the moving block (452).

5. The rail vehicle headlamp testing device according to claim 1, wherein: An adjusting rod (463) for adjusting the tightness of the hoop band (462) is provided in the hoop shell (461), and a DC brushed motor (464) having an output shaft coaxially connected to the adjusting rod (463) is mounted on the hoop shell (461).

6. The rail vehicle headlamp testing device according to claim 1, wherein: Silicon photocell panels (454) are mounted on the support plate (451) and the central disk (43) as light intensity detection devices.

7. The rail vehicle headlamp testing device according to claim 2, wherein: The lifting assembly (6) includes a connecting frame (66) fixedly mounted on the lamp mounting seat (31) or the connecting protruding plate (411), and a threaded sleeve (67) is mounted on the connecting frame (66); It also includes a fixing frame (61) and a second protrusion (64) mounted on the first vertical frame (32) or the second vertical frame (7), wherein a second drive motor (63) is mounted on the fixing frame (61), and a second threaded rod (65) coaxially connected to the second drive motor (63) is mounted on the second protrusion (64); The second threaded rod (65) is threadably mounted in the threaded sleeve (67).

8. The rail vehicle headlamp testing device according to claim 1, wherein: The mounting base (2) comprises a horizontal frame (22) with a vertical support leg (21) mounted below, a first threaded rod (24) being rotatably mounted on the horizontal frame (22) via a first protrusion (23), and the first drive motor (1) is fixedly connected to the first threaded rod (24) coaxially; The crossbeam (8) is fixedly mounted at the top of the second vertical frame (7), and a third protrusion (81) is provided on the crossbeam (8), and a threaded hole (811) for threaded mounting on the first threaded rod (24) is provided on the third protrusion (81); Slide blocks (25) are installed at both ends of the crossbeam (8), and slide rails (26) for slidably installing the slide blocks (25) are provided on the horizontal frame (22).

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