Novel SS4G locomotive front window wiper assembly

By installing separate and fixed wiper brackets and wiper blade brackets in the driver's cab, the wipers can be easily disassembled and installed, solving the problem of difficult replacement in existing technologies and reducing maintenance risks and workload.

CN224225030UActive Publication Date: 2026-05-12CHINA RAILWAY NO 3 GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY NO 3 GRP CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing locomotive windshield wipers have a complex structure, making replacement difficult after a malfunction. They require climbing to operate and affect the operation of the locomotive, increasing the workload and risks for maintenance personnel.

Method used

A novel windshield wiper assembly for the SS4G locomotive is designed. The bracket is installed in the driver's cab, and the wiper blade is fixed separately from the bracket. Each component can be disassembled and installed individually through detachable connectors.

Benefits of technology

It simplifies the windshield wiper replacement process, reduces maintenance difficulty and risk, and improves operational convenience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of locomotive front window wiper facilities, and particularly relates to a novel SS4G locomotive front window wiper assembly which comprises a support, a motor installed on one side of the support, a rotating shaft installed on the other side of the support, a wiping strip frame installed at the front end of the rotating shaft and a connecting piece arranged in the support and used for connecting the motor and the rotating shaft. The support is installed in a cab, the front end of the rotating shaft extends to the front of the locomotive from the front of the cab, the connecting piece comprises a first rotating plate connected with the output end of the motor, a second rotating plate connected with the inner side end of the rotating shaft and a third rotating plate with the two ends rotationally connected with the first rotating plate and the second rotating plate respectively, and the first rotating plate is detachably connected with the conveying end of the motor. The second rotating plate is detachably connected with the rotating shaft, and the first rotating plate and the second rotating plate are detachably connected with the third rotating plate. According to the novel front window wiper assembly of the SSG locomotive, the wiper frame and the support are fixed separately, the wiper can be replaced from a locomotive cab, and the novel front window wiper assembly of the SSG locomotive has the advantages of being simple in structure and convenient to install.
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Description

Technical Field

[0001] This utility model relates to the technical field of windshield wiper systems for locomotives; specifically, it relates to a novel windshield wiper assembly for SS4G locomotives. Background Technology

[0002] The windshield wiper is one of the most important electrical devices on the SS4G electric locomotive. When the locomotive operates in rain or snow, the rain and snow obstruct the crew's view, leading to poor visibility and increasing the risk of railway accidents. Existing wipers have a complex structure, making replacement difficult after a malfunction and requiring external disassembly. Because the wipers are installed high up, close to the locomotive's overhead contact line, replacement requires using a ladder and must be performed in an area without power, severely impacting locomotive operation and increasing the workload and risks for maintenance personnel. Therefore, to reduce the failure rate and replacement difficulty of the locomotive wipers, a new type of locomotive wiper is urgently needed to solve these problems. Utility Model Content

[0003] In view of this, the present invention provides a novel windshield wiper assembly for SS4G locomotives, thereby solving or at least alleviating the aforementioned problems existing in the prior art.

[0004] To achieve the aforementioned objectives, this utility model provides a novel windshield wiper assembly for an SSG locomotive, comprising a bracket, a motor mounted on one side of the bracket, a rotating shaft rotatably mounted on the other side of the bracket, a wiper blade bracket mounted at the front end of the rotating shaft, and a connector disposed within the bracket to connect the motor and the rotating shaft. The bracket is installed inside the locomotive driver's cab, and the front end of the rotating shaft extends from the driver's cab to the front of the locomotive. The connector includes a first rotating plate connected to the output end of the motor, a second rotating plate connected to the inner end of the rotating shaft, and a third rotating plate whose two ends are respectively rotatably connected to the first and second rotating plates. The first rotating plate is detachably connected to the motor's output end, the second rotating plate is detachably connected to the rotating shaft, and both the first and second rotating plates are detachably connected to the third rotating plate. The wiper blade bracket is detachably connected to the rotating shaft via a connector.

[0005] In the novel SSG locomotive windshield wiper assembly described above, optionally, the motor is bolted to the bracket, the output end of the motor is provided with a toothed column, one end of the first rotating plate is provided with a toothed groove, and the first rotating plate is connected to the motor conveying end through the toothed column fitted onto the toothed groove.

[0006] In the novel SSG locomotive windshield wiper assembly described above, optionally, a connecting shaft is fixedly provided at one end of a third rotating plate connecting the first and second rotating plates, and bearings are provided at both ends of the third rotating plate, with the inner rings of the bearings fitted onto the connecting shaft.

[0007] In the aforementioned novel SSG locomotive windshield wiper assembly, optionally, a first connecting ring coaxial with the connecting shaft is fixedly mounted on the first rotating plate and the second rotating plate. A fastening bolt is threaded onto the end of the connecting shaft, and a second connecting ring coaxial with the connecting shaft is fixedly mounted on the fastening bolt. The opposite ends of the first connecting ring and the second connecting ring are respectively pressed against the two sides of the inner ring of the bearing.

[0008] In the aforementioned novel SSG locomotive windshield wiper assembly, optionally, a bushing is fitted around the outside of the rotating shaft, the rear end of the bushing is inserted into the interior of the bracket, the front end of the bushing is threaded into the locomotive, and an inner pressure nut that is pressed against the inner wall of the bracket is threaded onto the rear end of the bushing. The front end of the rotating shaft passes through a connector and is threadedly connected to an outer pressure nut.

[0009] In the aforementioned novel SSG locomotive windshield wiper assembly, optionally, the rear end of the rotating shaft is provided with a rear limiting section with a polygonal surface, one end of the second rotating plate is provided with a rear limiting groove adapted to the rear limiting section, and the rear end of the rotating shaft is threadedly connected with a connecting bolt that restricts the second rotating plate outside the rear limiting section.

[0010] In the aforementioned novel SSG locomotive windshield wiper assembly, optionally, the front end of the rotating shaft is provided with a tapered section, and the middle of the tapered section is provided with a polygonal front limiting section. The connector is provided with tapered grooves and front limiting grooves that are respectively adapted to the tapered section and the front limiting section. The front end of the tapered section is provided with a threaded section, the front end of the threaded section passes through the connector, and the external pressure nut is threadedly engaged with the threaded section.

[0011] Compared with the prior art, the new SS4G locomotive windshield wiper assembly of this utility model adopts a method of separate fixing of the wiper frame and the bracket, which allows the wiper to be replaced from the locomotive driver's cab. It has the functions of simple structure and convenient installation. Attached Figure Description

[0012] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged view of part A;

[0015] Figure 3 This utility model Figure 1 A diagram illustrating the breakdown;

[0016] Figure 4 This utility model Figure 3 Enlarged view of part B;

[0017] Figure 5 This utility model Figure 3 Enlarged view of part C;

[0018] Figure 6 This utility model Figure 3 Another perspective view;

[0019] Figure 7 This utility model Figure 6 Enlarged view of part D.

[0020] Reference numerals: 1-Bracket; 2-Motor; 3-Rotating shaft; 4-Scraper frame; 5-First rotating plate; 6-Second rotating plate; 7-Third rotating plate; 8-Connector; 9-Gear column; 10-Gear groove; 11-Connecting shaft; 12-Bearing; 13-First connecting ring; 14-Fasting bolt; 15-Second connecting ring; 16-Shaft sleeve; 17-Inner pressure nut; 18-Outer pressure nut; 19-Rear limiting section; 20-Rear limiting groove; 21-Connecting bolt; 22-Conical section; 23-Front limiting section; 24-Conical groove; 25-Front limiting groove; 26-Threaded section. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1 to 7 As shown, this embodiment provides a novel SS4G locomotive windshield wiper assembly, including a bracket 1, a motor 2 mounted on one side of the bracket 1, a rotating shaft 3 rotatably mounted on the other side of the bracket 1, a wiper blade bracket 4 mounted on the front end of the rotating shaft 3, and a connector disposed inside the bracket 1 to connect the motor 2 and the rotating shaft 3. The bracket 1 is installed inside the locomotive driver's cab, and the front end of the rotating shaft 3 extends from the driver's cab to the front of the locomotive. The connector includes a first rotating plate 5 connected to the output end of the motor 2, a second rotating plate 6 connected to the inner end of the rotating shaft 3, and a third rotating plate 7 whose two ends are rotatably connected to the first rotating plate 5 and the second rotating plate 6, respectively. The first rotating plate 5 is detachably connected to the output end of the motor 2, the second rotating plate 6 is detachably connected to the rotating shaft 3, and both the first rotating plate 5 and the second rotating plate 6 are detachably connected to the third rotating plate 7. The wiper blade bracket 4 is detachably connected to the rotating shaft 3 through a connector 8.

[0023] In this embodiment, by setting the bracket 1 inside the driver's cab and connecting the wiper blade frame 4 through the rotating shaft 3, the wiper blade frame 4 is fixed separately from the rest of the wiper. Furthermore, the connection between the motor 2 and the first rotating plate 5, the first rotating plate 5 and the third rotating plate 7, the third rotating plate 7 and the second rotating plate 6, and the second rotating plate 6 and the rotating shaft 3 can all be disassembled individually. Therefore, the replacement of the wiper can be completed separately inside the locomotive, simplifying the work steps and reducing the risk.

[0024] In a relatively specific embodiment, the motor 2 is bolted to the bracket 1. The output end of the motor 2 is provided with a toothed column 9, and one end of the first rotating plate 5 is provided with a toothed groove 10. The first rotating plate 5 is connected to the conveying end of the motor 2 by fitting the toothed column 9 through the toothed groove 10. The first rotating plate 5 can be connected to the toothed column 9 by simply fitting the toothed sleeve onto the toothed column 9. When disassembling, the first rotating plate 5 can be pulled out of the toothed column 9 along its axial direction.

[0025] In a relatively specific embodiment, a connecting shaft 11 is fixedly provided at one end of the third rotating plate 7 connecting the first rotating plate 5 and the second rotating plate 6. Bearings 12 are provided at both ends of the third rotating plate 7, with the inner rings of the bearings 12 fitted onto the connecting shaft 11. By providing bearings 12 between the first rotating plate 5 and the third rotating plate 7, and between the second rotating plate 6 and the third rotating plate 7, friction is reduced during transmission, decreasing transmission resistance and lowering the load on the motor 2. Simultaneously, the bearings 12 are connected to the connecting shaft 11 via a plug-in connection, and the bearings 12 are also connected to the third rotating plate 7 via a plug-in connection, allowing the bearings 12, the first rotating plate 5, the second rotating plate 6, and the third rotating plate 7 to be disassembled separately, facilitating maintenance.

[0026] Furthermore, a first connecting ring 13, coaxial with the connecting shaft 11, is fixedly installed on the first rotating plate 5 and the second rotating plate 6. A fastening bolt 14 is threaded onto the end of the connecting shaft 11, and a second connecting ring 15, coaxial with the connecting shaft 11, is fixedly installed on the fastening bolt 14. The opposite ends of the first connecting ring 13 and the second connecting ring 15 are respectively pressed against both sides of the inner ring of the bearing 12. When connecting the first rotating plate 5, the second rotating plate 6, and the third rotating plate 7, after the bearing 12 is fitted onto the connecting shaft 11, the fastening bolt 14 is installed onto the connecting shaft 11, so that both sides of the inner ring of the bearing 12 are supported by the first connecting ring 13 and the second connecting ring 15 respectively, which can improve the overall stability.

[0027] A bushing 16 is fitted around the outside of the rotating shaft 3. The rear end of the bushing 16 is inserted into the interior of the bracket 1, and the front end of the bushing 16 is threaded into the locomotive. An internal pressure nut 17, which is pressed against the inner wall of the bracket 1, is threaded onto the rear end of the bushing 16. The front end of the rotating shaft 3 passes through the connector 8 and is threaded into an external pressure nut 18. Through the threaded engagement between the bushing 16 and the locomotive, the bushing 16 can simultaneously connect and stabilize the bracket 1 and the scraper frame 4, and can also allow the bracket 1 and the scraper frame 4 to be fixed separately, facilitating maintenance operations.

[0028] Furthermore, the rear end of the rotating shaft 3 is provided with a rear limiting section 19 with a polygonal surface, and one end of the second rotating plate 6 is provided with a rear limiting groove 20 that fits the rear limiting section 19. The rear end of the rotating shaft 3 is threadedly connected with a connecting bolt 21 that restricts the second rotating plate 6 to the outside of the rear limiting section 19. When connecting the second rotating plate 6 to the rotating shaft 3, simply fit the rear limiting groove 20 onto the rear limiting section 19, and then install the connecting bolt 21, ensuring that the rear limiting groove 20 is always fitted outside the rear limiting section 19. When disassembling the second rotating plate 6 and the rotating shaft 3, simply remove the connecting bolt 21 and then pull out the second rotating plate 6.

[0029] The front end of the rotating shaft 3 is provided with a tapered section 22, and the middle of the tapered section 22 is provided with a polygonal front limiting section 23. The connector 8 has tapered grooves 24 and front limiting grooves 25 that are respectively adapted to the tapered section 22 and the front limiting section 23. The front end of the tapered section 22 is provided with a threaded section 26, the front end of which passes through the connector 8, and the external pressure nut 18 is threadedly engaged with the threaded section 26. When connecting the connecting bracket to the rotating shaft 3, the tapered groove 24 is directly fitted onto the tapered section 22. During this process, the front limiting groove 25 is fitted onto the front limiting section 23. At this time, the threaded section 26 passes through the connector 8, and then the external pressure nut 18 is connected to the threaded section 26.

[0030] In summary, the novel SS4G locomotive windshield wiper assembly of this embodiment, by setting the bracket 1 and the wiper blade bracket 4 to be fixed separately, allows for direct operation inside the locomotive during maintenance, and all other components are connected in a detachable manner, which greatly facilitates maintenance work.

[0031] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A novel windshield wiper assembly for an SS4G locomotive, comprising a bracket (1), a motor (2) mounted on one side of the bracket (1), a rotating shaft (3) rotatably mounted on the other side of the bracket (1), a wiper blade bracket (4) mounted on the front end of the rotating shaft (3), and a connector disposed within the bracket (1) to connect the motor (2) and the rotating shaft (3), characterized in that, The bracket (1) is installed inside the locomotive driver's cab. The front end of the rotating shaft (3) extends from the driver's cab to the front of the locomotive. The connecting piece includes a first rotating plate (5) connected to the output end of the motor (2), a second rotating plate (6) connected to the inner end of the rotating shaft (3), and a third rotating plate (7) whose two ends are respectively rotatably connected to the first rotating plate (5) and the second rotating plate (6). The first rotating plate (5) is detachably connected to the conveying end of the motor (2), and the second rotating plate (6) is detachably connected to the rotating shaft (3). The first rotating plate (5) and the second rotating plate (6) are both detachably connected to the third rotating plate (7). The scraper frame (4) is detachably connected to the rotating shaft (3) through a connector (8).

2. The novel SS4G locomotive windshield wiper assembly according to claim 1, characterized in that, The motor (2) is bolted to the bracket (1). The output end of the motor (2) is provided with a toothed column (9). One end of the first rotating plate (5) is provided with a toothed groove (10). The first rotating plate (5) is connected to the conveying end of the motor (2) through the toothed column (9) fitted onto the toothed groove (10).

3. The novel SS4G locomotive windshield wiper assembly according to claim 1, characterized in that, A connecting shaft (11) is fixedly provided at one end of the third rotating plate (7) connecting the first rotating plate (5) and the second rotating plate (6). Bearings (12) are provided at both ends of the third rotating plate (7), and the inner ring of the bearings (12) is fitted on the connecting shaft (11).

4. The novel SS4G locomotive windshield wiper assembly according to claim 3, characterized in that, A first connecting ring (13) coaxial with the connecting shaft (11) is fixedly provided on the first rotating plate (5) and the second rotating plate (6). A fastening bolt (14) is threaded on the end of the connecting shaft (11). A second connecting ring (15) coaxial with the connecting shaft (11) is fixedly provided on the fastening bolt (14). The opposite ends of the first connecting ring (13) and the second connecting ring (15) are respectively pressed against the two sides of the inner ring of the bearing (12).

5. A novel SS4G locomotive windshield wiper assembly according to claim 3, characterized in that, The shaft (3) is fitted with a bushing (16) on its outside. The rear end of the bushing (16) is inserted into the interior of the bracket (1). The front end of the bushing (16) is threaded with the locomotive. The rear end of the bushing (16) is threaded with an inner pressure nut (17) that is pressed against the inner wall of the bracket (1). The front end of the shaft (3) passes through the connector (8) and is threaded with an outer pressure nut (18).

6. A novel SS4G locomotive windshield wiper assembly according to claim 5, characterized in that, The rear end of the rotating shaft (3) is provided with a rear limiting section (19) with a polygonal surface, and one end of the second rotating plate (6) is provided with a rear limiting groove (20) adapted to the rear limiting section (19). The rear end of the rotating shaft (3) is threadedly connected with a connecting bolt (21) that restricts the second rotating plate (6) outside the rear limiting section (19).

7. A novel SS4G locomotive windshield wiper assembly according to claim 5, characterized in that, The front end of the rotating shaft (3) is provided with a tapered section (22), and the middle part of the tapered section (22) is provided with a polygonal front limiting section (23). The connector (8) is provided with tapered grooves (24) and front limiting grooves (25) that are adapted to the tapered section (22) and the front limiting section (23), respectively. The front end of the tapered section (22) is provided with a threaded section (26), the front end of the threaded section (26) passes through the connector (8), and the external pressure nut (18) is threadedly engaged with the threaded section (26).