Working vehicle for overhead line system

Abstract

The utility model relates to the technical field of catenary maintenance, in particular to a working vehicle for a catenary. The device comprises an auxiliary observation mechanism and a lifting platform, the auxiliary observation mechanism comprises a lifting structure and an angle adjusting push rod; the lifting structure is hinged to the lifting platform and used for bearing maintainers. The angle adjusting push rod is hinged to the lifting platform, and the telescopic end of the angle adjusting push rod is hinged to the lifting structure. When the operating vehicle for the overhead line system is used, the angle adjusting push rod extends or retracts to drive the lifting structure to rotate relative to the lifting platform, and then the observation angle of a maintainer on the lifting structure is adjusted, so that the maintainer observes the overhead line system under the condition that the maintainer does not raise the head. The problems that an operator needs to look up to observe the overhead line system for a long time during inspection, the attention is easily affected due to neck fatigue, and the risk of missing inspection exists in the inspection process due to the fact that timed activity is needed to relieve fatigue are solved.

Description

Technical Field

[0001] This utility model relates to the field of overhead contact line maintenance technology, and in particular to an overhead contact line maintenance vehicle. Background Technology

[0002] A catenary work vehicle is a special vehicle designed specifically for the installation, maintenance, and inspection of catenary systems on electrified railways. It is usually equipped with a lifting platform adapted for high-altitude operations, so that workers and equipment can be raised to the height of the catenary to carry out related work.

[0003] In practical use, it has been found that in the process of overhauling the overhead contact line, the identification of minor defects such as bolt tightness, wire wear, and component misalignment still mainly relies on manual visual inspection to ensure the accuracy and timeliness of the judgment.

[0004] However, because workers need to look up at the overhead contact line for a long time during inspections, neck fatigue can easily affect their concentration. In addition, they need to move around regularly to relieve fatigue, which leads to the risk of missing inspections during the process. Utility Model Content

[0005] This utility model provides a work vehicle for overhead contact lines to solve the problem that when inspecting the overhead contact lines, workers need to look up for a long time, which can easily lead to neck fatigue and affect their concentration. In addition, they need to move around regularly to relieve fatigue, which can lead to the risk of missed inspections during the inspection process.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0007] A type of overhead contact line maintenance vehicle:

[0008] The system includes an auxiliary observation mechanism and a lifting platform. The auxiliary observation mechanism includes a support structure and an angle-adjusting push rod. The support structure is hinged to the lifting platform and is used to support maintenance personnel. The angle-adjusting push rod is hinged to the lifting platform, and its telescopic end is hinged to the support structure. The angle-adjusting push rod can extend or retract to drive the support structure to rotate relative to the lifting platform, thereby adjusting the observation angle of the maintenance personnel on the support structure.

[0009] Furthermore, it also includes a rotary mechanism; the rotary mechanism includes a base and a turntable; the base is installed on the lifting platform; the lifting structure and the angle-adjusting push rod are both hinged to the turntable; the turntable is rotatably inserted into the base and can rotate around its own axis to drive the auxiliary observation mechanism to rotate around the axis of the turntable.

[0010] Furthermore, the overhead contact line maintenance vehicle has an inspection mode and a maintenance mode. In the inspection mode, the slewing mechanism drives the auxiliary observation mechanism to swing back and forth horizontally around the overhead contact line as the center line for inspecting both sides of the overhead contact line. In the maintenance mode, the slewing mechanism drives the auxiliary observation mechanism to rotate so that the lifting structure moves to one side of the overhead contact line, and then the angle adjustment push rod drives the lifting structure closer to the overhead contact line.

[0011] Furthermore, the auxiliary observation mechanism also includes a support frame and a lifting push rod; the lifting push rod is connected to the support frame, and its telescopic end is connected to the lifting structure, for driving the lifting structure to move along its own length.

[0012] Furthermore, the lifting structure includes a pedal and a backrest; the pedal is connected to the telescopic end of the lifting push rod and is used to provide a stepping position for maintenance personnel; the backrest is connected to the pedal and is used to provide a leaning position for maintenance personnel.

[0013] Furthermore, the support frame includes a guide tube; the pedal is fitted onto the guide tube and slidably connected to it; the support structure also includes an extension rod; one end of the extension rod is connected to the backrest, and the other end is slidably inserted into the guide tube, for providing support to the backrest while reducing the length of the guide tube.

[0014] Furthermore, the lifting structure also includes a protective ring; the protective ring is detachably installed on the backrest to prevent maintenance personnel from accidentally detaching from the lifting structure.

[0015] Furthermore, the support structure also includes a cushioning pad; the cushioning pad is connected to the backrest and is used to reduce the hardness of the contact surface between the backrest and the maintenance personnel.

[0016] Furthermore, the rotary mechanism also includes a fixed gear ring, a drive motor, and a drive gear; the fixed gear ring is fitted onto the base; the drive motor is connected to the rotary table, and its rotation shaft is connected to the drive gear; the drive gear meshes with the fixed gear ring.

[0017] Furthermore, the rotary mechanism also includes a driven gear; the driven gear is inserted into the rotary disk and rotatably connected to the rotary disk; the driven gear meshes with the fixed gear ring to share the load borne by the drive gear.

[0018] The beneficial effects of the overhead contact line maintenance vehicle of this invention are analyzed as follows:

[0019] The device includes an auxiliary observation mechanism and a lifting platform; the auxiliary observation mechanism includes a lifting structure and an angle-adjusting push rod; the lifting structure is hinged to the lifting platform and is used to support maintenance personnel; the angle-adjusting push rod is hinged to the lifting platform, and its telescopic end is hinged to the lifting structure; the angle-adjusting push rod can extend or retract to drive the lifting structure to rotate relative to the lifting platform, thereby adjusting the observation angle of the maintenance personnel on the lifting structure.

[0020] When the overhead contact line maintenance vehicle provided by this utility model is in use, the angle adjustment push rod extends or retracts to drive the lifting structure to rotate relative to the lifting platform, thereby adjusting the observation angle of the maintenance personnel on the lifting structure so that the maintenance personnel can observe the overhead contact line without looking up, thus solving the problem of missed inspections during the inspection process. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This utility model provides a structural schematic diagram of the overhead contact line maintenance vehicle in inspection mode.

[0023] Figure 2 This utility model provides a structural schematic diagram of the overhead contact line maintenance vehicle in maintenance mode.

[0024] Figure 3 This utility model provides a schematic diagram of the auxiliary observation mechanism excluding the angle adjustment push rod;

[0025] Figure 4 The rear view of the auxiliary observation mechanism provided in this embodiment of the utility model, excluding the angle adjustment push rod;

[0026] Figure 5 An exploded three-dimensional structural diagram of the rotary mechanism provided in this embodiment of the invention.

[0027] icon:

[0028] 100-Auxiliary observation mechanism; 110-Lifting structure; 111-Pedal; 112-Backrest; 113-Extension rod; 114-Protective ring; 115-Buffer pad; 120-Angle adjustment push rod; 130-Bearing frame; 131-Guide tube; 132-Base plate; 133-Intermediate plate; 140-Lifting push rod; 200-Rotation mechanism; 210-Base; 220-Rotation disk; 230-Fixed gear ring; 240-Drive motor; 250-Drive gear; 260-Driven gear. Detailed Implementation

[0029] Because workers need to look up at the overhead contact line for a long time during inspections, neck fatigue can easily affect their concentration. In addition, they need to move around regularly to relieve fatigue, which leads to the risk of missing inspections during the process.

[0030] In view of this, this solution provides a work vehicle for overhead contact lines, including an auxiliary observation mechanism 100 and a lifting platform.

[0031] The following combination Figures 1-5 The structure and shape of the overhead contact line maintenance vehicle are described in detail:

[0032] The auxiliary observation mechanism 100 includes a lifting structure 110 and an angle-adjusting push rod 120. The lifting structure 110 is hinged to the lifting platform and is used to support maintenance personnel. The angle-adjusting push rod 120 is hinged to the lifting platform, and its telescopic end is hinged to the lifting structure 110. The angle-adjusting push rod 120 can extend or retract to drive the lifting structure 110 to rotate relative to the lifting platform, thereby adjusting the observation angle of the maintenance personnel on the lifting structure 110.

[0033] In this embodiment, the angle adjustment push rod 120 extends to drive the lifting structure 110 to rotate relative to the lifting platform, thereby causing the maintenance personnel on the lifting structure 110 to stand at an angle. This allows the maintenance personnel to observe the contact network from below without looking up. Observing from below, compared to observing at eye level, places the lifting structure 110 below the contact network, thus preventing the contact network maintenance vehicle from colliding with the contact network.

[0034] In addition, when it is necessary to adjust the observation distance between maintenance personnel and the overhead contact line, the angle adjustment push rod 120 extends or retracts to drive the lifting structure 110 to rotate relative to the lifting platform, thereby adjusting the observation angle of the maintenance personnel on the lifting structure 110 and thus adjusting the observation distance between the maintenance personnel and the overhead contact line.

[0035] In order to allow maintenance personnel to flexibly observe different positions on the overhead contact line:

[0036] like Figure 1 and Figure 5As shown, it also includes a rotary mechanism 200; the rotary mechanism 200 includes a base 210 and a rotary disk 220; the base 210 is mounted on the lifting platform; the lifting structure 110 and the angle adjustment push rod 120 are both hinged to the rotary disk 220; the rotary disk 220 is rotatably inserted into the base 210 and can rotate around its own axis to drive the auxiliary observation mechanism 100 to rotate around the axis of the rotary disk 220.

[0037] In this embodiment, the turntable 220 rotates around its own axis to drive the auxiliary observation mechanism 100 to rotate relative to the lifting platform, thereby adjusting the direction of the maintenance personnel on the lifting structure 110 toward the contact wire, and thus adjusting the position of the maintenance personnel on the contact wire for observation.

[0038] To improve the comprehensiveness of the overhead contact line observation by maintenance personnel, and to enhance the convenience of the overhead contact line maintenance process:

[0039] like Figures 1-2 As shown, the overhead contact line maintenance vehicle has an inspection mode and a maintenance mode. In the inspection mode, the slewing mechanism 200 drives the auxiliary observation mechanism 100 to swing back and forth in the horizontal direction with the overhead contact line as the center line, which is used to inspect both sides of the overhead contact line. In the maintenance mode, the slewing mechanism 200 drives the auxiliary observation mechanism 100 to rotate, so that the lifting structure 110 moves to one side of the overhead contact line. Then, the angle adjustment push rod 120 drives the lifting structure 110 to approach the overhead contact line.

[0040] In this embodiment, during the inspection mode, the rotary mechanism 200 drives the auxiliary observation mechanism 100 to swing back and forth in the horizontal direction with the contact wire as the center line, so that the observation direction of the maintenance personnel moves in the order of left / right, bottom and right / left, thereby improving the comprehensiveness of the contact wire observation by the maintenance personnel.

[0041] When in maintenance mode, the slewing mechanism 200 drives the auxiliary observation mechanism 100 to rotate, so that the lifting structure 110 moves to one side of the contact network. Then, the angle adjustment push rod 120 drives the lifting structure 110 closer to the contact network, so that maintenance personnel can perform maintenance work on the side of the contact network, thereby enhancing the convenience of the contact network maintenance process.

[0042] In order to adjust the observation distance between the maintenance personnel and the overhead contact line while ensuring the observation angle of the maintenance personnel, the height of the maintenance personnel will also be adjusted during the maintenance process:

[0043] like Figures 3-4 As shown, the auxiliary observation mechanism 100 also includes a support frame 130 and a lifting push rod 140; the lifting push rod 140 is connected to the support frame 130, and its telescopic end is connected to the lifting structure 110, which is used to drive the lifting structure 110 to move along its own length direction.

[0044] In this embodiment, during the inspection mode, the lifting push rod 140 drives the lifting structure 110 to move along the length of the lifting structure 110, so as to adjust the observation distance between the maintenance personnel and the contact wire while ensuring the observation angle of the maintenance personnel.

[0045] When in maintenance mode, the lifting push rod 140 drives the lifting structure 110 to move along the length of the lifting structure 110 to adjust the height of the maintenance personnel located on the side of the overhead contact line.

[0046] To enable the lifting structure 110 to provide support for maintenance personnel:

[0047] like Figures 3-4 As shown, the lifting structure 110 includes a foot pedal 111 and a backrest 112; the foot pedal 111 is connected to the telescopic end of the lifting push rod 140 and is used to provide a stepping position for maintenance personnel; the backrest 112 is connected to the foot pedal 111 and is used to provide a leaning position for maintenance personnel.

[0048] To improve the comfort of personnel inside the lifting structure 110 during maintenance:

[0049] like Figure 3 As shown, the lifting structure 110 also includes a buffer pad 115; the buffer pad 115 is connected to the backrest 112 and is used to reduce the hardness of the contact surface between the backrest 112 and the maintenance personnel.

[0050] In this embodiment, when the maintenance personnel move toward the lifting structure 110, the slewing mechanism 200 drives the lifting structure 110 to move above the lifting platform. Then, the angle adjustment push rod 120 drives the lifting structure 110 to rotate toward the lifting platform. After the lifting structure 110 moves to the set position, the maintenance personnel lie down on the backrest 112 and step on the pedal 111 with their feet, thereby moving the maintenance personnel to the lifting structure 110.

[0051] When maintenance personnel enter the lifting structure 110, the foot pedal 111 and the backrest 112 provide support for the maintenance personnel's feet and back respectively. During this process, the buffer pad 115 absorbs the impact force transmitted to the maintenance personnel by reducing the hardness of the contact surface between the backrest 112 and the maintenance personnel through elastic deformation.

[0052] To improve the stability of the lifting structure 110 during its movement along its own length:

[0053] like Figures 3-4 As shown, the support frame 130 includes a guide tube 131; the pedal 111 is fitted onto the guide tube 131 and is slidably connected to the guide tube 131; the support structure 110 also includes an extension rod 113; one end of the extension rod 113 is connected to the backrest 112, and the other end is slidably inserted into the guide tube 131, which is used to provide support to the backrest 112 while reducing the length of the guide tube 131.

[0054] More specifically regarding the shape and structure of the load-bearing frame 130:

[0055] like Figures 3-4 As shown, the supporting frame 130 also includes a base plate 132 and an intermediate plate 133; the end of the guide tube 131 away from the extension rod 113 is connected to the base plate 132; the intermediate plate 133 is fitted onto the guide tube 131 and is connected to the lifting push rod 140.

[0056] In this embodiment, the lifting push rod 140 drives the pedal 111 to move along the length of the guide tube 131. During this process, the guide tube 131 transmits and reduces the deflection stress on the pedal 111. The pedal 111 drives the extension rod 113 to move along the guide tube 131 through the backrest 112. During this process, the guide tube 131 and the extension rod 113 cooperate to transmit and reduce the deflection stress on the backrest 112, thereby providing support at both ends of the lifting structure 110.

[0057] To improve the safety of maintenance personnel:

[0058] like Figures 3-4 As shown, the lifting structure 110 also includes a protective ring 114; the protective ring 114 is detachably installed on the backrest 112 to prevent maintenance personnel from accidentally detaching from the lifting structure 110.

[0059] To allow the protective ring 114 to be detachably mounted on the backrest 112:

[0060] like Figures 3-4 As shown, the protective ring 114 includes a first protective rod, a second protective rod, and a locking pin; one end of the first protective rod is slidably inserted into the backrest 112, and the other end is slidably inserted into the second protective rod; the end of the second protective rod away from the first protective rod is slidably inserted into the backrest 112; the locking pin is slidably inserted into the first and second protective rods, and is located at the insertion position of the first and second protective rods.

[0061] In this embodiment, the protective ring 114 and the backrest 112 form a protective space, in which maintenance personnel are located to prevent them from accidentally separating from the lifting structure 110, thereby improving the safety of maintenance personnel.

[0062] To achieve rotation of rotary table 220 around its own axis:

[0063] like Figure 5 As shown, the rotary mechanism 200 also includes a fixed gear ring 230, a drive motor 240, and a drive gear 250; the fixed gear ring 230 is fitted onto the base 210; the drive motor 240 is connected to the rotary disk 220, and its rotation shaft is connected to the drive gear 250; the drive gear 250 meshes with the fixed gear ring 230.

[0064] To improve the stability of rotary table 220 during rotation:

[0065] like Figure 5 As shown, the rotary mechanism 200 also includes a driven gear 260; the driven gear 260 is inserted into the rotary disk 220 and rotatably connected to the rotary disk 220; the driven gear 260 meshes with the fixed gear ring 230 and is used to share the load borne by the drive gear 250.

[0066] In this embodiment, the drive motor 240 drives the drive gear 250 to rotate around its own axis. The drive gear 250 meshes with the fixed gear ring 230 to drive the rotary disk 220 to rotate around its own axis. The rotary disk 220 drives the driven gear 260 to rotate around the axis of the rotary disk 220. The driven gear 260 meshes with the fixed gear ring 230 to rotate around its own axis. During this process, the driven gear 260 shares the load borne by the drive gear 250, thereby improving the stability of the rotary disk 220 during rotation.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A contact wire maintenance vehicle, characterized in that: Includes an auxiliary observation mechanism (100) and a lifting platform; The auxiliary observation mechanism (100) includes a lifting structure (110) and an angle-adjusting push rod (120); The lifting structure (110) is hinged to the lifting platform and is used to carry maintenance personnel; The angle adjustment push rod (120) is hinged to the lifting platform, and its telescopic end is hinged to the lifting structure (110); The angle adjustment push rod (120) can extend or retract to drive the lifting structure (110) to rotate relative to the lifting platform, thereby adjusting the observation angle of the maintenance personnel on the lifting structure (110).

2. The overhead contact line maintenance vehicle according to claim 1, characterized in that: It also includes a slewing mechanism (200); The rotary mechanism (200) includes a base (210) and a rotary table (220); The base (210) is installed on the lifting platform; The lifting structure (110) and the angle-adjusting push rod (120) are both hinged to the rotary table (220); The rotary disk (220) is rotatably inserted into the base (210) and can rotate around its own axis to drive the auxiliary observation mechanism (100) to rotate around the axis of the rotary disk (220).

3. The overhead contact line work vehicle according to claim 2, characterized in that: The overhead contact line work vehicle has an inspection mode and a maintenance mode; When the inspection mode is performed, the rotary mechanism (200) drives the auxiliary observation mechanism (100) to swing back and forth in the horizontal direction with the contact wire as the center line, for inspecting both sides of the contact wire; When the maintenance mode is performed, the slewing mechanism (200) drives the auxiliary observation mechanism (100) to rotate so that the lifting structure (110) moves to the side of the contact network. Then, the angle adjustment push rod (120) drives the lifting structure (110) to approach the contact network.

4. The overhead contact line work vehicle according to claim 3, characterized in that: The auxiliary observation mechanism (100) also includes a support frame (130) and a lifting push rod (140); The lifting push rod (140) is connected to the bearing frame (130), and its telescopic end is connected to the lifting structure (110), which is used to drive the lifting structure (110) to move along its own length direction.

5. The overhead contact line work vehicle according to claim 4, characterized in that: The lifting structure (110) includes a footboard (111) and a backrest (112); The pedal (111) is connected to the telescopic end of the lifting push rod (140) and is used to provide a stepping position for maintenance personnel; The backrest (112) is connected to the pedal (111) and is used to provide a support position for maintenance personnel.

6. The overhead contact line maintenance vehicle according to claim 5, characterized in that: The supporting frame (130) includes a guide tube (131); The pedal (111) is fitted onto the guide tube (131) and is slidably connected to the guide tube (131); The lifting structure (110) also includes an extension rod (113); One end of the extension rod (113) is connected to the backrest (112), and the other end is slidably inserted into the guide tube (131) to provide support to the backrest (112) while reducing the length of the guide tube (131).

7. The overhead contact line work vehicle according to claim 6, characterized in that: The lifting structure (110) also includes a protective ring (114); The protective ring (114) is detachably installed on the backrest (112) to prevent maintenance personnel from accidentally detaching from the support structure (110).

8. The overhead contact line work vehicle according to claim 7, characterized in that: The lifting structure (110) also includes a buffer pad (115); The buffer pad (115) is connected to the backrest (112) to reduce the hardness of the contact surface between the backrest (112) and the maintenance personnel.

9. The overhead contact line maintenance vehicle according to claim 8, characterized in that: The rotary mechanism (200) also includes a fixed gear ring (230), a drive motor (240), and a drive gear (250); The fixed toothed ring (230) is fitted onto the base (210); The drive motor (240) is connected to the rotary table (220), and its rotation shaft is connected to the drive gear (250); The drive gear (250) meshes with the fixed gear ring (230).

10. The overhead contact line work vehicle according to claim 9, characterized in that: The rotary mechanism (200) also includes a driven gear (260); The driven gear (260) is inserted into the rotary disk (220) and is rotatably connected to the rotary disk (220); The driven gear (260) meshes with the fixed gear ring (230) to share the load borne by the drive gear (250).

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