Railway vehicle headlamp testing device

Abstract

The invention relates to the technical field of railway vehicle detection, in particular to a railway vehicle headlamp testing device which comprises an installation base frame and further comprises a headlamp installation assembly used for detachably installing a headlamp body to be tested; the testing part is installed on the second vertical frame in a lifting mode through a lifting assembly, and the second vertical frame drives the testing part to move in the horizontal direction through the cross beam; illumination intensity detection devices are mounted on the sides, corresponding to the headlamp body, of the photosensitive moving assembly and the central disc; the illuminating lamp mounting assembly is matched with the testing part which moves horizontally, so that lifting adjustment performance is achieved, and completeness of an illumination coverage surface during testing can be maintained conveniently; an illumination intensity detection device is installed on the testing part, opening and closing adjustment of the testing part can be achieved, and the illumination intensity distribution conditions of all parts of the coverage surface of the testing part can be accurately tested, and key indexes such as illumination uniformity, edge illumination attenuation conditions and illumination intensity changes under different distances can be accurately tested.

Description

Technical Field

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

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

[0003] However, the current testing methods for rail vehicle headlights have many defects. 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, and experience levels of 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 perform simple and scattered tests on the brightness and illumination range of headlights, lacking systematicity and comprehensiveness. For example, for a specific shape (such as a circle) of coverage formed by the headlight, the existing test methods are difficult to accurately test the light intensity distribution of each part of the coverage, including key indicators such as its lighting uniformity, edge illumination attenuation, and changes in light intensity at different distances. It is then difficult to comprehensively evaluate the overall performance of the lamp.

[0004] In summary, a more standardized rail vehicle headlight test device is urgently needed to meet the growing demand for rail transit safety assurance. 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 comprises a mounting base on which a first drive motor is mounted, and further comprises:

[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, wherein the headlamp mounting seat is used for detachably mounting a headlamp body to be tested;

[0009] A testing part, used for testing the light intensity of the headlamp body, is installed on the second vertical frame by the lifting assembly, and the second vertical frame drives the testing part to move in the horizontal direction through the crossbeam;

[0010] The testing part comprises 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, 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 sliding 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 one by one, and the reset unit is installed in the U-shaped bracket.

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

[0017] A moving rod is inserted into the rod cavity through a spring, a connecting head is installed on the top of the moving rod, and 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 comprises 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 arranged 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 center disk as light intensity detection devices.

[0022] Preferably, the lifting assembly comprises a connecting frame fixedly mounted on the lamp mounting seat or the connecting convex plate, 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 convex block is provided on the crossbeam, and a threaded hole for threaded mounting on the first threaded rod is provided on the third convex block;

[0027] Slide blocks are installed at both ends of the cross beam, and slide rails for slidably 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. The rail vehicle headlamp test device can test the illumination parameters of the headlamp under different distance conditions by means of the provided lamp installation assembly and the horizontally movable test part, and has the function of lifting and lowering adjustment, so as to facilitate maintaining the integrity of the illumination coverage during the test;

[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, 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 drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0032] Figure 1 This is one of the overall structural schematic 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 one of the schematic diagrams 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] Fig. 9 This is an exploded view of the lifting assembly of the present invention;

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

[0042] Fig.11 This is the second schematic diagram of the test unit of the present invention;

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

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

[0045] Fig.14 It is a schematic diagram of the installation relationship between the photosensitive moving assembly and the hoop unit of the present invention;

[0046] Fig.15 It is a schematic diagram of the photosensitive moving component of the present invention;

[0047] Fig.16 This is an exploded view of the photosensitive moving component of the present invention;

[0048] Fig.17 It is a cutaway exploded view of the photosensitive moving assembly of the present invention;

[0049] Fig.18 It is a 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. Sliding block; 26. Sliding rail;

[0052] 3. Lighting installation assembly; 31. Lighting installation seat; 32. First vertical frame; 321. Lifting groove; 33. Top plate;

[0053] 4. Test unit; 41. Ring disk; 411. Connecting convex plate; 412. Moving groove; 42. Intermediate ring block; 421. U-shaped bracket; 43. Center disk; 44. Sliding rod; 45. Photosensitive moving assembly; 451. Support plate; 452. Moving block; 4521. Card slot; 453. Reset unit; 4531. Retractable bin seat; 4501. Rod cavity; 4532. Closing plate; 4533. Spring; 4534. Moving rod; 4535. Connector; 454. Silicon photocell panel; 46. Hoop unit; 461. Hoop shell; 462. Hoop belt; 463. Adjustment rod; 464. DC brush motor;

[0054] 5. Headlight body;

[0055] 6. lifting assembly; 61. fixing frame; 62. vertical rail; 63. second driving motor; 64. second protrusion; 65. second threaded rod; 66. connecting frame; 67. threaded sleeve;

[0056] 7. Second vertical frame; 8. Crossbeam; 81. Third protrusion; 811. Threaded hole. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0058] See also Figure 1-Figure 18 The present invention describes the above technical solution in detail through the following embodiments:

[0059] The rail vehicle headlamp testing device of this embodiment is as follows: Figure 1 and Figure 2 The structure shown includes a mounting base 2 on which a first drive motor 1 is mounted, and further includes:

[0060] Lighting installation component 3, such as Figure 1-Figure 5 The structure shown in FIG. 1 specifically includes a first vertical frame 32 installed at one end of the mounting base 2 through a top plate 33, and a lifting groove 321 for installing a lifting assembly 6 is provided on the first vertical frame 32; specifically, the lifting assembly 6 is as shown in FIG. Figure 5 and Fig. 9The structure shown is provided with a connecting frame 66 fixedly mounted on the headlight 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 cooperation with the second protrusion 64, and the second threaded rod 65 is threadedly installed in the threaded sleeve 67, and can be driven by the second driving motor 63 to pass through the threaded sleeve 67, and based on the screw principle, drive the headlight mounting assembly 3 to achieve lifting and lowering. The purpose of lifting and lowering is to keep the illumination coverage area fully presented during testing, and to prevent the bottom illumination from being blocked by the ground due to insufficient height of the headlight mounting assembly 3 when the distance is far; in order to facilitate testing of each headlamp body 5, the headlamp body 5 can be detachably installed on the headlamp mounting seat 31 of this embodiment for easy replacement.

[0061] The main purpose of the test part 4 is to be able to receive the circular light coverage area, test the light intensity at the center of the light coverage area and gradually outwardly, 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, so as to evaluate its applicability on rail vehicles; this embodiment also realizes the lifting and lowering of the test part 4 along the second vertical frame 7 through the lifting assembly 6.

[0062] In order to test the illumination performance under different distance conditions, the present 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 in the horizontal direction through the crossbeam 8; specifically, the mounting base 2 includes a horizontal frame 22 with a vertical support leg 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 coaxially fixedly connected with the first threaded rod 24; 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. When the first drive motor 1 rotates, 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 headlight mounting assembly 3. However, it should be noted that the test part 4 needs to be aligned with the center of the headlight body 5 during the test.

[0063] like Figure 10-13As shown in the structure, the test part 4 in this embodiment includes an annular disk 41, on which a connecting convex plate 411 is provided; an intermediate ring block 42 and a center disk 43 are sequentially installed 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 sliding rod 44 perpendicular to the center of the annular disk 41 is installed in the moving groove 412, and the purpose of setting the sliding 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 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 by the sliding rod 44.

[0064] Specifically, 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, and a support plate 451 is installed at the end corresponding to the moving block 452 and the headlamp body 5. 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. Fig.11 and Fig.12 As shown in the positional relationship, the resetting unit 453 is installed in the U-shaped bracket 421 .

[0065] In this embodiment, the reset unit 453 is as follows: Fig.17 The structure shown in the figure, wherein a rod cavity 4501 is provided in a 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 a hoop 462 to apply a tightening force inward, the moving block 452 is as shown in FIG. Fig.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 Fig.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 when rotating, 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 the light intensity of a larger range of light coverage.

[0067] In this embodiment, silicon photovoltaic panels 454 are installed on the support plate 451 and the center disk 43 as light intensity detection devices. The working principle of testing light intensity is based on the fact that when the silicon photovoltaic 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 changes in light intensity 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 in a certain specific posture. If the specific posture changes, the directional indication 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 used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the 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 that A and B meet 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 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A rail vehicle headlamp testing device, comprising a mounting frame (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 means of a lifting assembly (6), wherein the headlamp mounting seat (31) is used for detachably mounting a headlamp body (5) to be tested; A test part (4) is used to test the light intensity of the headlamp body (5), and is installed on the second vertical frame (7) by lifting the lifting assembly (6), and the second vertical frame (7) drives the test part (4) to move in the horizontal direction through the crossbeam (8); The testing part (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 photosensitive moving component (45) and the central disk (43) are all installed with light intensity detection devices on the sides corresponding to the headlamp body (5).

2. The rail vehicle headlamp testing device according to claim 1, characterized in that: 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). A connecting convex plate (411) is provided on the annular disk (41); The photosensitive moving component (45) is slidably installed in the moving groove (412) via the sliding rod (44).

3. The rail vehicle headlamp testing device according to claim 2, characterized in that: The photosensitive moving component (45) comprises a moving block (452) slidably mounted on the sliding rod (44), a supporting plate (451) being mounted on the corresponding end of the moving block (452) and the headlamp body (5), and a reset unit (453) perpendicular to the center of the annular disk (41) is provided on the moving block (452).

4. The rail vehicle headlamp testing device according to claim 3, characterized in that: 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).

5. The rail vehicle headlamp testing device according to claim 3, characterized in that: The resetting unit (453) comprises a retractable bin seat (4531) provided with a rod cavity (4501), and a sealing plate (4532) is detachably mounted on the bottom of the retractable bin seat (4531); A moving rod (4534) is inserted into the rod cavity (4501) via a spring (4533), and a connecting head (4535) is installed on the top of the moving rod (4534). The connecting head (4535) is used to be detachably installed on the moving block (452).

6. The rail vehicle headlamp testing device according to claim 5, characterized in that: The moving block (452) is provided with a card slot (4521), and a plurality of the moving blocks (452) are detachably mounted with a hoop unit (46) through the card slot (4521); the hoop unit (46) synchronously adjusts the opening and closing of a plurality of the photosensitive moving components (45) to receive the illumination of the headlamp body (5).

7. The rail vehicle headlamp testing device according to claim 6, characterized in that: The hoop unit (46) comprises a hoop band (462) clamped in the clamping slot (4521), and a hoop shell (461) mounted on any one of the moving blocks (452); 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).

8. The rail vehicle headlamp testing device according to claim 3, characterized in that: Silicon photocell panels (454) are installed on the support plate (451) and the central disk (43) as light intensity detection devices.

9. The rail vehicle headlamp testing device according to claim 2, characterized in that: The lifting assembly (6) comprises a connecting frame (66) fixedly mounted on the lamp mounting seat (31) or the connecting convex 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).

10. The rail vehicle headlamp testing device according to claim 1, characterized in that: 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 cross beam (8) is fixedly mounted at the top of the second vertical frame (7), and a third protrusion (81) is provided on the cross beam (8), and a threaded hole (811) is provided on the third protrusion (81) for threaded mounting on the first threaded rod (24); Slide blocks (25) are installed at both ends of the crossbeam (8), and a slide rail (26) for slidably installing the slide blocks (25) is provided on the horizontal frame (22).

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