Intelligent oiling equipment for gearbox of motor train unit
By designing an intelligent oiling device for the gearbox of a high-speed train adapted to pedestrian passages under high-speed railways, and utilizing a drive wheel mechanism and a flexible positioning mechanism, the problems of easy collision during equipment operation and narrow passages were solved, achieving efficient and safe automatic oiling operation.
Patent Information
- Application Number
- CN202520013698.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing gearbox refueling equipment vehicles are large, prone to collisions, and have narrow pedestrian walkways under high-speed railways, resulting in wasted human resources and inconvenient operation.
A smart oil injection device for high-speed train gearboxes was designed. It adopts a drive wheel mechanism combined with a guide plate and an elastic positioning mechanism to adapt to the complex environment of the pedestrian passage under the high-speed train, realize automatic guidance and positioning, and reduce manual intervention.
It improves the operational safety and efficiency of refueling equipment, reduces the waste of human resources, avoids the risk of collision between equipment and high-speed rail and pedestrian passages, and adapts to automatic guidance and positioning in narrow passages.
Smart Images

Figure CN223470004U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of railway maintenance and maintenance, concretely relates to intelligent oil injection equipment of EMU gear box. BACKGROUND
[0002] Gear box is the core component of EMU traction transmission system, and its performance directly influences the safe and stable operation of train. Through accurate control of cooperation and lubrication between gears, the reliability and stability in high-speed driving are ensured.
[0003] In order to ensure safety, it is necessary to replace lubricating oil regularly. For a train set (8 carriages 16 gear boxes), at present, the existing mode is to drive a multi-wheel vehicle loaded with an oil tank and an oil pump to the corresponding position for oiling by manual driving. The vehicle is large in size, and it is inconvenient to turn back and forth, avoid obstacles, and prone to collision accidents. In the maintenance station, the vehicle channel is narrow, which not only brings inconvenience to the operation of the driver, but also prone to collision risks between oiling vehicles and high-speed rail, causing secondary damage to the maintenance vehicle. Figure 6 For the space below the high-speed rail stop point (such as The utility model discloses intelligent oil injection equipment of EMU gear box, which is mainly used for transportation and walking in the pedestrian passage below the high-speed rail.
[0004] In order to solve the problems of large size of the existing oiling vehicle, easy collision when driving around the high-speed rail, and narrow pedestrian passage below the high-speed rail, the utility model provides intelligent oil injection equipment of EMU gear box, which is mainly used for transportation and walking in the pedestrian passage below the high-speed rail.
[0005] The utility model discloses an intelligent oil injection equipment of EMU gear box, which comprises a vehicle body 1, an oil injection equipment 2 is fixedly connected to the top of the vehicle body 1, drive wheel mechanisms 3 are arranged at the bottom of the vehicle body 1 on both sides respectively, a passageway is formed between the drive wheel mechanisms 3 on both sides and the vehicle body 1, a guide plate 31 is fixedly connected to the drive wheel mechanism 3, and the guide plate 31 is oriented towards the passageway.
[0006] Further, the drive wheel mechanism 3 comprises a shell 32, a walking wheel 36 is rotatably connected in the shell 32, the shell 32 is fixedly connected with the body of a motor 33, the output shaft of the motor 33 penetrates through the shell 32 and is fixedly connected with a driving gear 34, the driving gear 34 is engaged with a driven gear 35, and the driven gear 35 is fixedly connected with the walking wheel 36.
[0007] Further, the guide plate 31 is located at the front end of the shell 32, the front end of the guide plate 31 is arc-shaped, one side of the guide plate 31 is fixed to the side of the shell 32, and the other side of the guide plate 31 is located in the passageway and extends backward.
[0008] Further, the height difference between the bottom of the guide plate 31 and the bottom of the walking wheel 36 is less than or equal to 8mm.
[0009] Further, the universal wheel 5 is arranged at the bottom of the vehicle body 1 and located behind the shell 32.
[0010] Further, the elastic positioning mechanism 4 comprises a mounting cavity 41 fixedly connected to the side of the vehicle body 1, a telescopic rod 42 slidingly arranged in the mounting cavity 41, an elastic structure arranged between one end of the telescopic rod 42 and the mounting cavity 41, a U-shaped plate 43 fixedly connected to the other end of the telescopic rod 42, and a rotating wheel 44 rotatably connected to the U-shaped plate 43 through a rotating shaft.
[0011] Further, the distance sensor 6 is arranged at the front end of the vehicle body and detects the forward direction.
[0012] Further, at least one hanging ear 7 is arranged at each side of the vehicle body, and a hanging hole is arranged on the hanging ear 7.
[0013] Compared with the prior art, unlike the AGV trolley, the laser or magnetic strip navigation is required, and the working environment is required to be high (closed, clean, flat, and slope ≤3°). The pedestrian passage under the high-speed rail is not only difficult to ensure the environment, but also may have many sundries. Therefore, on the one hand, the vehicle body is designed to form a passageway between the driving wheel mechanism and the vehicle body, and a guide plate is arranged to guide the sundries into the passageway to pass through the trolley; on the other hand, the elastic positioning mechanism is arranged according to the narrow working condition of the pedestrian passage to keep the position of the trolley. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a structural schematic view of the trolley;
[0015] Figure 2 is a structural schematic view of the bottom of the trolley;
[0016] Figure 3 is an enlarged view of the driving wheel mechanism;
[0017] Figure 4 is a structural schematic view of the elastic positioning mechanism;
[0018] Figure 5 is a schematic view of the trolley with an oiling device;
[0019] Figure 6 is a schematic view of the trolley in the maintenance passage under the high-speed rail.
[0020] Among them, the vehicle body 1, the oil injection equipment 2, the driving wheel mechanism 3, the guide plate 31, the shell 32, the motor 33, the driving gear 34, the driven gear 35, the walking wheel 36, the elastic positioning mechanism 4, the installation cavity 41, the telescopic rod 42, the U-shaped plate 43, the rotating wheel 44, the universal wheel 5, the distance sensor 6, and the hanging ear 7. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] In the present invention, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0023] As attached Figure 1 、 5 -6, the intelligent oiling device for the gearbox of an EMU comprises a car body 1, an oiling device 2 is fixedly connected to the top of the car body 1, the oiling device 2 can be the oil tank, oil pump and oil gun device of the prior art, driving wheel mechanisms 3 are respectively provided on both sides of the bottom of the car body 1, and aisles are formed between the driving wheel mechanisms 3 on both sides and the car body 1, the driving wheel mechanisms 3 are fixedly connected to guide plates 31, and the guide plates 31 are guided toward the aisle; at least one elastic positioning mechanism 4 is respectively provided on both sides of the car body 1, and the elastic positioning mechanism 4 is used to cooperate with the wall-like structure to position the car body 1.
[0024] Existing AGV carts are generally guided by laser or magnetic strips. The working environment requires to be highly closed, clean, flat, with a slope of ≤3°, and the chassis is extremely low. It cannot be used in the environment with a lot of debris in the pedestrian maintenance passage under the high-speed rail. Therefore, the cart of this application is preferably designed with a chassis height of greater than or equal to 100mm.
[0025] Further, as attached Figures 2-3As shown, the driving wheel mechanism 3 comprises a shell 32, a walking wheel 36 is rotatably connected in the shell 32 through a rotating shaft, a body of a motor 33 is fixedly connected to the inner side of the shell 32, an output shaft of the motor 33 penetrates through the shell 32 and is fixedly connected with a driving gear 34, the driving gear 34 engages with a driven gear 35, the driven gear 35 is fixedly connected with the walking wheel 36, preferably, the driving wheel mechanism 3 is provided with one set on each of the left and right sides of the vehicle body 1, each set is independently driven, and when walking on the flat ground under the non-high-speed rail pedestrian maintenance passage, the turning action is realized by the differential of the motors 33 of the two driving wheel mechanisms 3.
[0026] Further, the guide plate 31 is located at the front end of the shell 32, the front end of the guide plate 31 is arc-shaped, one side of the guide plate 31 is fixed to the side of the shell 32, and the other side of the guide plate 31 is located in the passage and extends backward, and through the arc-shaped structure, when the trolley walks, the sundries in front of the driving wheel mechanism 3 collide with the guide plate 31 and are guided to both sides, especially at the middle passage.
[0027] Further, the height difference between the bottom of the guide plate 31 and the bottom of the walking wheel 36 is less than or equal to 8 mm, and preferably less than or equal to 3 mm, and we generally believe that when the height difference between the bottom of the guide plate 31 and the bottom of the walking wheel 36 is less than or equal to 8 mm, that is, the distance between the bottom of the guide plate 31 and the ground is less than or equal to 8 mm when in use, the sundries higher than the value are guided, and for the sundries lower than the value, we generally believe that the walking wheel 36 itself has the ability to overcome the sundries.
[0028] Further, the vehicle body 1 is provided with universal wheels 5 at the bottom, preferably two universal wheels 5, and the two universal wheels 5 are respectively located at the rear of the shells 32 of the two driving wheel mechanisms 3.
[0029] Further, as shown in the accompanying drawings, Figure 4 As shown, the elastic positioning mechanism 4 comprises a mounting cavity 41, the mounting cavity 41 is a hollow structure with a side opening, the mounting cavity 41 is fixedly connected to the side of the vehicle body 1, a telescopic rod 42 is slidably arranged in the mounting cavity 41, the telescopic rod 42 extends out of the opening of the mounting cavity 41, an elastic structure is arranged between one end of the telescopic rod 42 and the mounting cavity 41, the elastic structure can be a spring, that is, one end of the spring is fixedly connected to the end of the telescopic rod 42, and the other end is fixedly connected to the bottom of the mounting cavity 41, the elastic structure can also be a gas sealed in the telescopic rod 42 and the mounting cavity 41, that is, the telescopic rod 42 and the mounting cavity 41 form a prior art gas spring, the other end of the telescopic rod 42 is fixedly connected with a U-shaped plate 43, and a rotating wheel 44 is rotatably connected to the U-shaped plate 43 through a rotating shaft.
[0030] In use, as shown in the accompanying drawings, Figure 6As shown, the two sides of the bottom of the pedestrian maintenance passage under the high-speed rail are steps, which can be solid steps or pipeline boxes, the runner 44 abuts against the steps or the two side walls of the passage, and the elastic positioning mechanisms 4 on the two sides are preferably in the compressed state. For the pedestrian maintenance passage, since the curvature is small, the two drive wheel mechanisms 3 only need to provide equal power, and under the cooperation of the elastic positioning mechanisms 4 and the rear universal wheels 5, the movement of the trolley can be automatically adjusted in the direction of the passage, without the need for the operator to make deliberate adjustments.
[0031] Further, the front end of the trolley body is provided with a distance sensor 6, the distance sensor 6 detects in the forward direction, and the distance sensor 6 preferably monitors the same height as the chassis height of the trolley body 1 or a height difference within ±20 mm, for detecting larger debris in front, and for smaller debris, the debris is flipped by the walking wheel 36 through the guide plate 31, for medium-sized debris, the debris is guided to the two sides by the guide plate 31, and for larger debris, the user manually cleans after the distance sensor 6 detects a certain distance.
[0032] Further, at least one ear 7 is arranged on each side of the trolley body 1, the ear 7 is provided with a hanging hole, and in use, the ear 7 is hung and fixed through a lifting rope, and the trolley body 1 is hoisted into the pedestrian maintenance passage through a crane.
[0033] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the overall concept of the present application, a number of changes and improvements can be made, which should also be considered as the protection range of the present application.
Claims
1. Intelligent oil injection equipment for EMU gear box, characterized in that: The utility model provides a kind of oil injection equipment, including car body (1), car body (1) top fixed connection oil injection equipment (2), car body (1) bottom two sides are respectively provided drive wheel mechanism (3), and the passageway is formed between the drive wheel mechanism (3) of two sides and car body (1), drive wheel mechanism (3) fixed connection guide plate (31), guide plate (31) is oriented towards passageway;Car body (1) two sides are respectively provided at least one elastic positioning mechanism (4), and elastic positioning mechanism (4) is used to cooperate with wall structure, and the positioning of car body (1) is positioned.
2. The EMU gear box intelligent oiling equipment according to claim 1, characterized in that: Drive wheel mechanism (3) includes shell (32), shell (32) is rotatably connected walking wheel (36) in, shell (32) fixed connection motor (33) body, motor (33) output shaft passes through shell (32) and is fixedly connected driving gear (34), driving gear (34) engages driven gear (35), driven gear (35) is fixedly connected walking wheel (36).
3. The EMU gear box intelligent oiling device according to claim 2, characterized in that: Guide plate (31) is located at the front end of shell (32), and the front end of guide plate (31) is arc-shaped, one side of guide plate (31) is fixed with shell (32) side, and the other side of guide plate (31) is located in passageway and extends rearward.
4. The EMU gear box intelligent oiling device of claim 3, wherein: The height difference between the bottom of guide plate (31) and the bottom of walking wheel (36) is less than or equal to 8mm.
5. The EMU gear box intelligent oiling device of claim 3, wherein: The bottom of the car body (1) is provided with a universal wheel (5), and the universal wheel (5) is located behind the shell (32).
6. The EMU gear box intelligent oiling device of claim 1, wherein: The elastic positioning mechanism (4) includes a mounting cavity (41), and the mounting cavity (41) is fixedly connected to the side of the car body (1). A telescopic rod (42) is slidably arranged in the mounting cavity (41). An elastic structure is arranged between one end of the telescopic rod (42) and the mounting cavity (41). The other end of the telescopic rod (42) is fixedly connected to a U-shaped plate (43). A rotating shaft is rotatably connected to a rotating wheel (44) in the U-shaped plate (43).
7. The EMU gear box intelligent oiling device of claim 1, wherein: A distance sensor (6) is arranged at the front end of the car body, and the distance sensor (6) detects the forward direction.
8. The EMU gear box intelligent oiling device of claim 1, wherein: At least one ear (7) is arranged on each side of the car body, and a hanging hole is arranged on the ear (7).