Detection device for automatic centering of catenary maintenance vehicle platform and vehicle

Abstract

A detection device for automatic centering of a catenary maintenance operation vehicle platform and the operation vehicle, the detection device for automatic centering of the catenary maintenance operation vehicle platform comprises three limit switches uniformly distributed on the vehicle body floor around the platform column base of the lifting operation platform, and the three limit switches comprise a middle limit switch, a left limit switch M and a right limit switch N; the vehicle body floor is provided with a mounting seat matched with the middle limit switch, a left mounting seat matched with the left limit switch M and a right mounting seat matched with the right limit switch N; a platform left centering proximity switch and a platform right centering proximity switch are mounted on the mounting seat; a striker matched with the three limit switches is mounted on the platform column base; the striker is provided with a sensing block one and a sensing block two; and the sensing block one and the sensing block two are symmetrically arranged along the striker. The detection device can accurately and conveniently detect the state of the platform.

Description

Technical Field

[0001] This utility model relates to the field of railway line inspection and maintenance technology, specifically to an automatic alignment detection device and operation vehicle for an overhead contact line maintenance platform. Background Technology

[0002] Overhead contact line maintenance vehicles are widely used for non-energized maintenance, daily inspections, upkeep, and parameter reporting of overhead contact lines. The lifting platform is a crucial construction platform for daily maintenance work. By controlling the lifting and rotation of the platform, it reaches the target work area, providing reliable support for overhead contact line maintenance work at heights. Therefore, a higher degree of automation in the platform will provide greater convenience for complex maintenance tasks. In existing technology, after maintenance is completed, the lifting platform requires repeated manual operation of left and right turn switches to achieve accurate platform centering, i.e., centering the platform at the central platform support on the roof. This centering process is cumbersome and inefficient. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and to provide an automatic alignment detection device for the overhead contact line maintenance vehicle platform, which can accurately and conveniently detect the status of the platform.

[0004] Another objective of this invention is to provide a contact network maintenance vehicle.

[0005] The technical solution of this utility model is: an automatic centering detection device for a contact network maintenance vehicle platform, comprising three limit switches evenly distributed on the vehicle floor around the platform column base at the bottom of the lifting platform. The three limit switches include a middle limit switch, a left limit switch M, and a right limit switch N. With the middle limit switch as the reference, the left limit switch M is located to the left of the middle limit switch, and the right limit switch N is located to the right of the middle limit switch. There is a platform left return centering proximity switch on one side of the middle limit switch, and a platform right return centering proximity switch on the other side of the middle limit switch.

[0006] The impact block used in conjunction with the three limit switches is installed on the platform column base. The impact block is equipped with a sensing block one used in conjunction with the platform left return center proximity switch and a sensing block two used in conjunction with the platform right return center proximity switch. The sensing blocks one and two are arranged symmetrically along the impact block.

[0007] The position of the middle limit switch is offset from the center line of the vehicle by a certain angle.

[0008] When the platform is aligned with the platform support in the middle of the roof, the left return proximity switch of the platform corresponds to sensing block one, and the right return proximity switch of the platform corresponds to sensing block two. The collision block triggers the center limit switch, and the angle α between the longitudinal center line E of the collision block and the center line F of the platform base is an acute angle.

[0009] When the platform is in the neutral position, the neutral limit switch triggers the stop block, and the angle α between the longitudinal center line E of the stop block and the center line F of the platform base is ±37.5°.

[0010] The vehicle floor is equipped with a mounting base that cooperates with the center limit switch, a left mounting base that cooperates with the left limit switch M, and a right mounting base that cooperates with the right limit switch N. The mounting base includes a support base and a mounting plate. The support base includes a vertical plate and an upper plate connected to the upper end of the vertical plate. The center limit switch is mounted on the side of the vertical plate via the mounting plate. A fixing plate is mounted on the upper plate. The platform left return center proximity switch and the platform right return center proximity switch are mounted on the fixing plate. The platform left return center proximity switch and the platform right return center proximity switch are symmetrically arranged along the center limit switch.

[0011] The mounting plate has a long, narrow hole for flexibly adjusting the installation stroke of the middle limit switch;

[0012] Both sensing blocks 1 and 2 are L-shaped bends, including a horizontal strip and a vertical strip connected to the end of the horizontal strip. The horizontal strip is fixedly mounted on the impact block. The impact block has a mounting hole at the rear and a protrusion at the front for use with a limit switch. The width of both the vertical and horizontal strips is 10±2mm, effectively ensuring the accuracy of the adjustment and alignment.

[0013] The left mounting base is a protective cover, which is a side-opening structure composed of a vertical plate, a top plate, and a side plate. The left limit switch M, placed inside the protective cover, is mounted on the inner surface of the vertical plate via a mounting plate. The right mounting base has the same structure as the left mounting base, and the right limit switch N is installed in the same way as the left limit switch M. The vehicle floor is a steel floor, and the vertical plates of the vertical plate, the left mounting base, and the right mounting base are welded perpendicular to the steel floor.

[0014] The surfaces of the vertical plate of the upright plate, the vertical plate of the left mounting base, and the vertical plate of the right mounting base are tangentially parallel to the outer edge of the platform column base. The longitudinal symmetry line of the upper plate coincides with the longitudinal symmetry line of the upright plate. The horizontal symmetry line of the upper plate is perpendicular to the longitudinal symmetry line. The longitudinal symmetry line of the upright plate, the horizontal symmetry line of the upper plate, and the longitudinal symmetry line of the mounting plate are located in the same plane G.

[0015] The upper plate has four evenly distributed circular holes L around its perimeter for inserting mechanical locking pins of the platform, and a fixing plate is mounted on the upper middle part of the upper plate.

[0016] The middle limit switch is installed at the longitudinal symmetry line of the upright plate; when the platform is aligned with the middle platform support on the roof, the central axis of the impact block is in plane G.

[0017] A catenary maintenance vehicle includes a vehicle body and a lifting platform. The lifting platform is connected to the vehicle body via a column. The upper part of the column is connected to the lifting platform, and the lower part of the column is the platform column base. It also includes an automatic alignment detection device for the catenary maintenance vehicle platform as described above.

[0018] By detecting the platform status through the detection device of this utility model, the control mechanism can obtain the status information of the platform returning to the center position, realize automatic adjustment of the accuracy of the center position, thereby effectively simplifying the operation mode of manual operation, reliably improving the operation efficiency, and improving the platform centering accuracy. It is widely applicable to the overhead contact line maintenance operation environment. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the overhead contact line operation vehicle of this utility model;

[0020] Figure 2 yes Figure 1 Top view;

[0021] Figure 3 This is a layout diagram of the platform automatic alignment detection device of this utility model;

[0022] Figure 4 yes Figure 1 Top view;

[0023] Figure 5 This is a partial installation schematic diagram of the platform automatic centering detection device of this utility model;

[0024] Figure 6 yes Figure 5 Top view;

[0025] Figure 7 This is the main view of the collision block;

[0026] Figure 8 This is a side view of the impact block;

[0027] Figure 9 This is a top view of the impact block. Detailed Implementation

[0028] Figure 1 , 2 In this article, a contact network maintenance vehicle includes a vehicle body and a lifting platform (hereinafter referred to as the platform) 33. The platform support 36 is located in the middle of the roof of the vehicle body. The lifting platform 33 is connected to the vehicle body through a column 34. The upper part of the column is connected to the lifting platform 33, and the lower part of the column is the platform column base 35. Three limit switches are evenly distributed on the vehicle body floor around the platform column base 35.

[0029] Figure 3-6The system includes three limit switches: a middle limit switch 30, a left limit switch M, and a right limit switch N. With the middle limit switch 30 as the reference, the left limit switch M is located to the left of the middle limit switch 30, and the right limit switch N is located to the right of the middle limit switch 30. The angle between the middle limit switch 30 and the left limit switch M is 120°, and the angle between the middle limit switch 30 and the right limit switch N is also 120°. The middle limit switch 30 is offset from the vehicle's centerline by a certain angle 'a'. With the front of the vehicle as the reference, the middle limit switch 30 is closest to the center of the vehicle. The other two limit switches are located on the left and right sides of the vehicle. The purpose of this offset angle is twofold: firstly, it facilitates understanding and use; secondly, this offset from the vehicle's centerline will not obstruct maintenance work.

[0030] The vehicle floor is equipped with a mounting base that mates with the center limit switch 30, a left mounting base that mates with the left limit switch M, and a right mounting base that mates with the right limit switch N. The mounting base includes a support base 301 and a mounting plate 302. The support base 301 includes a vertical plate 3012 and an upper plate 3011 connected to the upper end of the vertical plate 3012. The center limit switch 30 is mounted on the side of the vertical plate 3012 via the mounting plate 302. The upper plate 3011 has four evenly distributed circular holes L for inserting mechanical locking pins of the platform. A fixing plate 310 is mounted on the upper part of the center of the upper plate 3011. The platform left return center proximity switch 31 and the platform right return center proximity switch 32 are mounted on the fixing plate 310. The platform left return center proximity switches 31 and the platform right return center proximity switches 32 are symmetrically arranged along the center limit switch 30. A stop block 303, used in conjunction with three limit switches, is mounted on the platform column base 35. The stop block 303 is equipped with a first sensing block 311 for use with the platform left return proximity switch 31 and a second sensing block 312 for use with the platform right return proximity switch 32. Sensing blocks 311 and 312 are symmetrically arranged along the stop block 303. Both sensing blocks 311 and 312 are L-shaped bends, including a horizontal strip and a vertical strip connected to the end of the horizontal strip. The vehicle floor is made of iron, and the vertical plate 3012, the vertical plate of the left mounting base, and the vertical plate of the right mounting base are welded perpendicular to the iron floor.

[0031] The surfaces of the upright plate 3012, the vertical plate of the left mounting base, and the vertical plate of the right mounting base are tangentially parallel to the outer edge of the platform column base 35. The longitudinal symmetry line of the upper plate 3011 coincides with the longitudinal symmetry line of the upright plate 3012. The horizontal symmetry line of the upper plate 3011 is perpendicular to the longitudinal symmetry line. The longitudinal symmetry line of the upright plate 3012, the horizontal symmetry line of the upper plate 3011, and the longitudinal symmetry line of the mounting plate 302 are located in the same plane G. The middle limit switch 30 is installed at the longitudinal symmetry line of the upright plate 3012. When the platform 33 is aligned with the platform support 36 in the middle of the roof, the central axis of the impact block 303 is in plane G.

[0032] Figure 7-9In the design, the rear of the impact block 303 has a mounting hole 3032, and the front of the impact block 303 has a protrusion 3031 for use with a limit switch. The protrusion 3031 is an arc-shaped block, and its arc surface mates with the limit switch. The impact block 303 is mounted on the platform column base 35 through the mounting hole 3032. The horizontal strips of the first sensing block 311 and the second sensing block 312 are mounted on the impact block 303 through the mounting hole 3032.

[0033] When in use, this detection device works in conjunction with the control mechanism. The control mechanism can obtain the status information of the platform returning to the center position and automatically adjust the accuracy of the alignment center position, thereby effectively simplifying the operation method of manual work.

[0034] When the left limit switch M triggers the stop block 303, the platform 33 is prevented from rotating to the left; when the right limit switch N triggers the stop block 303, the platform is prevented from rotating to the right.

[0035] When platform 33 is aligned with platform support 36 in the middle of the roof, the left return proximity switch 31 of the platform corresponds to sensing block 1 311, and the right return proximity switch 32 of the platform corresponds to sensing block 2 312. The center limit switch 30 triggers the impact block 303. The angle α between the longitudinal center line E of the impact block 303 and the center line F of the platform base is ±37.5°. The angle α is the angle at which the position of the center limit switch 30 is offset from the center line of the vehicle.

Claims

1. A detection device for automatic alignment of a contact wire maintenance vehicle platform, characterized in that: The system includes three limit switches evenly distributed around the platform column base (35) at the bottom of the lifting platform on the vehicle floor. The three limit switches include a middle limit switch (30), a left limit switch M, and a right limit switch N. With the middle limit switch (30) as the reference, the left limit switch M is located to the left of the middle limit switch (30), and the right limit switch N is located to the right of the middle limit switch (30). There is a platform left return center proximity switch (31) on one side of the middle limit switch (30), and a platform right return center proximity switch (32) on the other side of the middle limit switch (30). A stop block (303) used in conjunction with the three limit switches is installed on the platform column base (35). The stop block (303) is equipped with a sensing block one (311) used in conjunction with the platform left return center proximity switch (31) and a sensing block two (312) used in conjunction with the platform right return center proximity switch (32). The sensing blocks one (311) and the sensing blocks two (312) are symmetrically arranged along the stop block (303).

2. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 1, characterized in that: The position of the middle limit switch (30) is offset from the center line of the vehicle by a certain angle.

3. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 1, characterized in that: When the platform (33) is aligned with the platform support (36) in the middle of the roof, the left return proximity switch (31) of the platform corresponds to the first sensing block (311), the right return proximity switch (32) of the platform corresponds to the second sensing block (312), the impact block (303) triggers the middle position limit switch (30), and the angle α between the longitudinal center line E of the impact block (303) and the center line F of the platform base is an acute angle.

4. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 1, characterized in that: The vehicle floor is provided with a mounting base that cooperates with the middle limit switch (30), a left mounting base that cooperates with the left limit switch M, and a right mounting base that cooperates with the right limit switch N. The mounting base includes a support base (301) and a mounting plate (302). The support base (301) includes a vertical plate (3012) and an upper plate (3011) connected to the upper end of the vertical plate (3012). The middle limit switch (30) is mounted on the side of the vertical plate (3012) via the mounting plate (302). A fixing plate (310) is mounted on the upper plate (3011). The platform left return-to-center proximity switch (31) and the platform right return-to-center proximity switch (32) are mounted on the fixing plate (310). The platform left return-to-center proximity switch (31) and the platform right return-to-center proximity switch (32) are symmetrically arranged along the middle limit switch (30).

5. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 4, characterized in that: The mounting plate (302) has an elongated slotted hole for flexibly adjusting the mounting stroke of the intermediate limit switch (30); Both the first sensing block (311) and the second sensing block (312) are L-shaped and include a horizontal strip and a vertical strip connected to the end of the horizontal strip. The horizontal strip is fixedly mounted on the impact block (303). The impact block (303) has a mounting hole (3032) at the rear and a protrusion (3031) at the front for use with the limit switch.

6. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 4, characterized in that: The left mounting base is a protective cover, which is a side-opening structure composed of a vertical plate, an upper plate, and a side plate. The left limit switch M, which is placed inside the protective cover, is mounted on the inner surface of the vertical plate via the mounting plate (302). The structure of the right mounting base is the same as that of the left mounting base, and the installation method of the right limit switch N is the same as that of the left limit switch M.

7. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 4, characterized in that: The surfaces of the vertical plate (3012), the vertical plate of the left mounting base, and the vertical plate of the right mounting base are tangentially parallel to the outer edge of the platform column base (35). The longitudinal symmetry line of the upper plate (3011) coincides with the longitudinal symmetry line of the vertical plate (3012). The horizontal symmetry line of the upper plate (3011) is perpendicular to the longitudinal symmetry line. The longitudinal symmetry line of the vertical plate (3012), the horizontal symmetry line of the upper plate (3011), and the longitudinal symmetry line of the mounting plate (302) are located in the same plane G.

8. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 4, characterized in that: The upper plate (3011) has a circular hole L around its periphery for inserting a mechanical locking pin into the platform, and a fixing plate (310) is mounted on the upper part of the middle of the upper plate (3011).

9. The automatic alignment detection device for the overhead contact line maintenance vehicle platform according to claim 7, characterized in that: The middle limit switch (30) is installed at the longitudinal symmetry line of the upright plate (3012); when the platform (33) is aligned with the middle platform support (36) on the roof, the central axis of the impact block (303) is in plane G.

10. A contact wire maintenance vehicle, characterized in that: It includes a vehicle body and a lifting operation platform (33). The lifting operation platform (33) is connected to the vehicle body through a column (34). The upper part of the column is connected to the lifting operation platform (33), and the lower part of the column is the platform column base (35). It also includes an automatic centering detection device for the contact wire maintenance vehicle platform as described in any one of claims 1-9.

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