Planetary gear type variable speed differential for locomotive

Abstract

The utility model discloses a planetary gear type variable speed differential for a locomotive, and relates to the field of transmission maintenance structures. The main body comprises the shell, the oil guide port is formed in the top of the shell, the oil guide port is used for adding oil to the main body or discharging oil from the main body, the connecting mechanism and the oil guide pipe are arranged, the oil guide port is located in the top of the shell, maintenance operation is simplified, and the risk of oil leakage is reduced; the oil seal sheet is made of an oil-resistant rubber material, leakage is effectively prevented, accurate injection of oil is ensured through precise matching of the needle hole and the oil injection needle, meanwhile, backflow is prevented, sufficient supply of the oil is ensured through stable threaded connection of the connecting mechanism and an additional sealing ring, and the oil storage mechanism and the oil storage tank are arranged, so that waste and pollution are avoided, and the service life of the oil seal sheet is prolonged. The connecting mechanism successfully solves the technical problems of sanitation, safety, operation efficiency, metering accuracy, environmental pollution and the like in a traditional lubricating oil adding mode.

Description

Technical Field

[0001] The utility model relates to the field of transmission maintenance structures, in particular to a planetary gear type speed differential for locomotives. Background Art

[0002] The planetary gear type variable speed differential used in locomotives combines the dual functions of planetary gear mechanisms and differentials. It can not only meet the speed change requirements of electric vehicles, but also realize differential control. Its core part is the planetary gear mechanism, which is composed of a sun gear, planetary gears, a planetary carrier and a ring gear. The transmission ratio is adjusted through the different motion relationships between the components to achieve flexible speed change. At the same time, its special gear setting enables the drive wheels to rotate at different speeds and automatically adjust the wheel speed to meet the different driving requirements of the inner and outer wheels when turning. This type of variable speed differential is widely used in electric vehicles due to its compact structure, high transmission efficiency, smooth shifting and good maneuverability. Especially for models that require flexible speed change and differential control, according to actual needs, different gears and transmission ratios can be achieved by combining two to three sets of planetary gear mechanisms to adapt to the diverse driving needs of electric vehicles.

[0003] The existing planetary gear type speed differential for locomotives will gradually produce noise during long-term use. The main reason is insufficient lubricating oil. Lubricating oil plays a vital role in lubrication and cooling during the operation of the differential. If the amount of lubricating oil is insufficient, the gears and bearings inside the differential cannot be fully lubricated, the friction coefficient increases, and then a harsh noise is generated during high-speed operation. In addition, the lack of lubricating oil may also cause the temperature inside the differential to rise, accelerate the wear of the components, and further affect the performance and life of the differential. However, the existing method of adding lubricating oil is mainly through a catheter, and then people gently suck it through their mouths, and then introduce the lubricating oil into the differential through the filling port. This method has obvious defects, such as this This method of suctioning through the mouth is not only unhygienic but may also pose a threat to human health, because harmful chemicals that may be contained in the lubricant may cause damage to the respiratory tract and digestive system once inhaled or contacted. Secondly, the operation process is cumbersome and inefficient, requiring manual operation, which is not only time-consuming but also easily leads to oil waste. It is particularly impractical for large-scale or frequent lubricant additions. Furthermore, it is difficult to accurately control the amount of lubricant added through mouth suction. Too much or too little oil may affect the normal operation of the differential, and accurate oil quantity is crucial to maintaining the performance of the differential and extending its service life. Finally, the lubricant is prone to dripping or splashing during this process, which not only pollutes the environment but also damages the cleanliness of the workplace and the integrity of the equipment. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a planetary gear type speed differential for locomotives to solve technical problems such as hygiene and safety issues, inconvenient operation and low efficiency, inaccurate measurement and environmental pollution in existing lubricant addition methods.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a planetary gear type speed differential for a locomotive, comprising a main body, the main body comprising a housing, an oil guide port being defined at the top of the housing, the oil guide port being used to add oil to or drain oil from the main body, an oil seal being provided on the inner wall of the oil guide port, the oil seal being made of rubber, and a pinhole being defined at the top of the oil seal;

[0006] The outer side of the oil guide port is provided with a thread, and the outer side of the oil guide port is detachably connected to the oil guide pipe via a connecting mechanism, the connecting mechanism including a connecting seat, the inner side of the connecting seat is provided with a threaded groove, the threaded groove is threadedly connected to the oil guide port, a sealing ring is adhered to the upper part of the threaded groove, the sealing ring abuts against the oil guide port, and the sealing ring is used to strengthen the sealing between the connecting seat and the oil guide port;

[0007] An oil filling needle is provided at the inner axis of the connecting seat, and the oil filling needle is plugged into the needle hole.

[0008] By adopting the above technical solution, by arranging an oil seal on the inner wall of the oil guide port and opening a pinhole on the oil seal, and cooperating with the oil filling needle in the connecting mechanism, accurate injection of lubricating oil can be ensured and oil backflow can be effectively prevented, thereby improving the hygiene and safety of refueling or draining operations.

[0009] Furthermore, the connecting mechanism is used to tightly connect the oil guide pipe to the main body, and the oil seal and the oil injection needle prevent the oil from flowing back.

[0010] By adopting the above technical solution, the setting of the connecting mechanism not only ensures the tight connection between the oil guide pipe and the main body to prevent oil leakage, but also the coordinated use of the oil seal and the oil filling needle effectively avoids oil backflow, further enhancing the safety of use.

[0011] Furthermore, an oil storage mechanism is provided at one end of the oil guide pipe away from the main body, and the oil storage mechanism includes an oil storage tank.

[0012] By adopting the above technical solution, the setting of the oil storage mechanism makes the storage and supply of lubricating oil more convenient and efficient. The oil storage tank, as the core component of the oil storage mechanism, can ensure a stable supply of lubricating oil.

[0013] Furthermore, two fixing plates are provided on the back of the oil storage tank, and a plurality of mounting holes are opened on the fixing plates.

[0014] By adopting the above technical solution, the arrangement of the fixing plate and the mounting holes enables the oil storage tank to be firmly mounted on the electric vehicle, thereby enhancing the stability of the overall structure.

[0015] Furthermore, a plurality of the mounting holes are threadedly connected with fixing bolts, and the fixing plate is connected to a thread of the electric tricycle via the fixing bolts.

[0016] By adopting the above technical solution, the fixing plate is tightly connected to the electric vehicle frame by using fixing bolts through the mounting holes, further ensuring that the oil tank will not shake or fall off during driving.

[0017] Furthermore, the top of the oil storage tank is rotatably connected to a top plate, the top of the top plate is provided with a refueling port, and a sealing cover is threadedly connected to the refueling port.

[0018] By adopting the above technical solution, the arrangement of the top plate and the oil filling port makes it easy for operators to add lubricating oil, and at the same time the sealing cover can effectively prevent oil leakage and the entry of external impurities.

[0019] Furthermore, an oil storage tank is provided inside the oil storage tank, and an oil pump is installed below the inside of the oil storage tank.

[0020] By adopting the above technical solution, the oil storage tank has sufficient capacity to store the lubricating oil, and the oil pump can effectively extract the lubricating oil and transport it to the parts that need lubrication.

[0021] Furthermore, the oil outlet end of the oil pump is connected to the oil guide pipe.

[0022] By adopting the above technical solution, a complete oil circuit system is formed, ensuring that the lubricating oil can be smoothly transported to the parts that need lubrication.

[0023] Furthermore, a second visual port is provided on the back of the oil storage tank, and the second visual port is used to check the oil amount in the oil storage tank.

[0024] By adopting the above technical solution, the provision of the second visual port makes it easy for the operator to check the oil level in the oil storage tank at any time, thereby ensuring an adequate supply of lubricating oil.

[0025] Furthermore, a first visual port is provided on the back of the shell, and the first visual port is used to observe the amount of oil inside the main body. A first vehicle bar and a second vehicle bar are respectively provided on both sides of the shell.

[0026] By adopting the above technical solution, the setting of the first visual port enables the operator to intuitively observe the oil level inside the main body, and the first vehicle bar and the second vehicle bar are used to connect the wheels to ensure the normal driving of the electric vehicle.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. This utility model simplifies maintenance and reduces the risk of oil leakage by providing a connecting mechanism and an oil guide pipe, with the oil guide port located at the top of the housing. The oil seal is made of oil-resistant rubber to effectively prevent leakage, while the precise fit between the pinhole and the oil injection needle ensures accurate oil injection and prevents backflow. The connecting mechanism further enhances the sealing performance through a stable threaded connection and an additional sealing ring. The flexible oil guide pipe improves the delivery efficiency and facilitates long-distance oil delivery. The provision of the oil storage mechanism and the oil storage tank not only ensures an adequate supply of oil but also avoids waste and pollution. The connecting mechanism ensures stable operation and efficient lubrication of the equipment, and successfully solves the technical problems of traditional lubricant addition methods such as hygiene, safety, operational efficiency, metering accuracy, and environmental pollution.

[0029] 2. The utility model provides an oil storage mechanism, in which the setting of the fixing plate and the mounting hole enables the oil tank to be firmly installed on the electric tricycle, and the fixing bolts further enhance its stability, ensuring driving safety. The top plate is rotatably connected to the top of the oil tank, which is convenient for opening and closing. At the same time, the refueling port thereon is reasonably arranged to facilitate the filling of lubricating oil, and is equipped with a sealing cover to prevent oil leakage and impurities from entering. The oil storage tank has sufficient capacity to ensure the long-term stable operation of the speed differential, and the built-in oil pump can effectively transport the lubricating oil to the required parts. The connection with the oil guide pipe is simple and reliable, and easy to maintain. In addition, the second visual port on the back allows the operator to monitor the oil level at any time and make timely adjustments to ensure the normal operation of the lubrication system. Overall, these structures cooperate with each other to ensure the stable operation of the lubrication system, improve the reliability and safety of the equipment, and simplify the maintenance and operation procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the rear-view stereoscopic structure of the utility model;

[0032] Figure 3 This is a schematic diagram of a side-view cross-sectional three-dimensional structure of the present utility model;

[0033] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0034] In the figure: 1. Main body; 101. Shell; 102. First rod; 103. Second rod; 104. Oil guide port; 105. Oil seal; 106. Pinhole; 107. First visual port; 2. Connecting mechanism; 201. Connecting seat; 202. Threaded groove; 203. Oil filling needle; 204. Sealing ring; 3. Oil guide pipe; 4. Oil storage mechanism; 401. Fixing plate; 402. Mounting hole; 403. Oil storage tank; 404. Second visual port; 405. Top plate; 406. Oil filling port; 407. Oil storage tank; 408. Oil pump. DETAILED DESCRIPTION

[0035] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The following describes an embodiment of the present invention based on its overall structure.

[0039] Example 1:

[0040] Planetary gear type speed differential for locomotives, such as Figure 1-Figure 4As shown, the main body 1 includes a shell 101, and an oil guide port 104 is provided on the top of the shell 101. The oil guide port 104 is used to add oil to or drain oil from the main body 1. The inner wall of the oil guide port 104 is provided with an oil seal 105. The oil seal 105 is made of rubber and a pinhole 106 is provided on the top of the oil seal 105. The outer side of the oil guide port 104 is provided with a thread, and the outer side of the oil guide port 104 is detachably connected to the oil guide pipe 3 through a connecting mechanism 2. The connecting mechanism 2 includes a connecting seat 201, and a thread groove 202 is provided on the inner side of the connecting seat 201. The thread groove 202 is provided on the inner side of the connecting seat 201. 02 is threadedly connected to the oil guide port 104, and a sealing ring 204 is adhered to the upper part of the inner part of the thread groove 202, and the sealing ring 204 is in contact with the oil guide port 104. The sealing ring 204 is used to strengthen the sealing between the connecting seat 201 and the oil guide port 104; an oil filling needle 203 is provided at the internal axis of the connecting seat 201, and the oil filling needle 203 is plugged into the needle hole 106. The setting of the oil guide port 104 makes it convenient to refuel or drain the main body 1. At the same time, the cooperation of the oil seal piece 105 and the needle hole 106 can effectively prevent oil leakage, thereby improving the use efficiency and safety of the equipment.

[0041] See Figure 1 、 Figure 2 The connecting mechanism 2 is used to tightly connect the oil guide pipe 3 with the main body 1, and the oil seal 105 and the oil injection needle 203 avoid oil backflow. The setting of the connecting mechanism 2 ensures a tight connection between the oil guide pipe 3 and the main body 1, effectively preventing oil leakage. At the same time, the cooperation between the oil seal 105 and the oil injection needle 203 avoids oil backflow, further enhancing the sealing and safety of use.

[0042] Example 2:

[0043] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 An oil storage mechanism 4 is provided at one end of the oil guide pipe 3 away from the main body 1. The oil storage mechanism 4 includes an oil storage tank 403. The setting of the oil storage mechanism 4 allows the lubricating oil to be stored centrally and supplied to the main body 1 in a timely manner through the oil guide pipe 3, thereby ensuring the continuous and stable operation of the speed differential.

[0044] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 Two fixing plates 401 are provided on the back of the oil tank 403, and a plurality of mounting holes 402 are opened on the fixing plates 401. The setting of the fixing plates 401 and the mounting holes 402 enables the oil tank 403 to be firmly installed on the electric vehicle, thereby improving the stability of the overall structure and preventing displacement or falling off due to vibration during driving.

[0045] See Figure 1 、 Figure 2、 Figure 3 、 Figure 4 , multiple mounting holes 402 are threadedly connected with fixing bolts, and the fixing plate 401 is connected to a thread of the electric tricycle through the fixing bolt. The setting of the fixing plate 401 and the mounting holes 402 enables the oil tank 403 to be firmly installed on the electric vehicle, thereby improving the stability of the overall structure and preventing displacement or falling off due to vibration during driving.

[0046] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The top of the oil tank 403 is rotatably connected to a top plate 405, and a refueling port 406 is provided on the top of the top plate 405, and a sealing cover is threadedly connected to the refueling port 406. The setting of the top plate 405 allows the refueling port 406 to be closed when refueling is not required to prevent impurities from entering. At the same time, the rotating connection method facilitates opening and closing, thereby improving the usability and maintainability of the equipment.

[0047] See Figure 1 、 Figure 4 An oil storage tank 407 is provided inside the oil storage tank 403, and an oil pump 408 is installed below the oil storage tank 407. The oil storage tank 407 has sufficient capacity to store lubricating oil, and the oil pump 408 can efficiently extract the lubricating oil and transport it to the parts that need lubrication, thereby ensuring the normal operation of the transmission differential.

[0048] See Figure 1 、 Figure 2 、 Figure 3 The oil outlet end of the oil pump 408 is connected to the oil guide pipe 3. The direct connection between the oil pump 408 and the oil guide pipe 3 forms an efficient oil circuit system, reduces the loss during oil transportation, and improves lubrication efficiency.

[0049] See Figure 3 、 Figure 4 A second visual port 404 is provided on the back of the oil storage tank 403. The second visual port 404 is used to check the oil level in the oil storage tank 403. The setting of the second visual port 404 allows the operator to easily check the oil level in the oil storage tank 403, ensure sufficient supply of lubricating oil, and replenish it in time, thereby avoiding equipment failure caused by insufficient oil.

[0050] See Figure 1 、 Figure 2A first visual port 107 is provided on the back of the shell 101. The first visual port 107 is used to observe the oil level inside the main body 1. A first vehicle rod 102 and a second vehicle rod 103 are respectively provided on both sides of the shell 101. The first visual port 107 enables the operator to intuitively observe the oil level inside the main body 1, which is convenient for timely maintenance and replenishment of lubricating oil; and the setting of the vehicle rod enables the speed differential to be easily installed on the electric vehicle, thereby improving the practicality and adaptability of the equipment.

[0051] The implementation principle of the present utility model is as follows: first, the oil storage tank 403 needs to be firmly mounted on one side of the three-wheeled electric vehicle using the mounting holes 402 and fixing bolts on the fixing plate 401, ensuring that the oil guide pipe 3 is tightly connected to the oil guide port 104 of the main body 1 through the connecting mechanism 2. When connecting, the inner thread groove 202 of the connecting seat 201 is rotated to match the outer thread of the oil guide port 104, and then tightened to ensure a seal;

[0052] Open the top plate 405 on the top of the oil tank 403, add an appropriate amount of lubricating oil into the oil reservoir 407 through the oil filling port 406, then close the top plate 405 and seal the oil filling port 406 with a sealing cap, start the oil pump 408, pump the lubricating oil from the oil reservoir 407, and deliver it to the oil guide port 104 of the main body 1 through the oil guide pipe 3. When the lubricating oil passes through the oil guide port 104, it is accurately injected into the needle hole 106 through the oil filling needle 203, and then flows into the part of the main body 1 that needs lubrication;

[0053] During the operation of the electric vehicle, the transmission differential is automatically lubricated. The operator can observe the oil level inside the main body 1 through the first visual port 107 to ensure that the lubricating oil is sufficient. At the same time, the oil level in the oil tank 403 can be checked at any time through the second visual port 404 for timely replenishment.

[0054] Parts not involved in the present invention are the same as those in the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0055] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A planetary gear type speed differential for a locomotive, characterized in that: The invention comprises a main body (1), wherein the main body (1) comprises a shell (101), an oil guide port (104) is provided on the top of the shell (101), and the oil guide port (104) is used to add oil to or drain oil from the main body (1), an oil seal (105) is provided on the inner wall of the oil guide port (104), the oil seal (105) is made of rubber, and a pinhole (106) is provided on the top of the oil seal (105); The outer side of the oil guide port (104) is provided with a thread, and the outer side of the oil guide port (104) is detachably connected to an oil guide pipe (3) via a connecting mechanism (2), wherein the connecting mechanism (2) comprises a connecting seat (201), a thread groove (202) is provided on the inner side of the connecting seat (201), the thread groove (202) is threadedly connected to the oil guide port (104), a sealing ring (204) is adhered to the upper part of the inner side of the thread groove (202), the sealing ring (204) is in contact with the oil guide port (104), and the sealing ring (204) is used to enhance the sealing performance between the connecting seat (201) and the oil guide port (104); An oil injection needle (203) is provided at the inner axis of the connecting seat (201), and the oil injection needle (203) is plugged into the needle hole (106).

2. The planetary gear type speed differential for a locomotive according to claim 1, characterized in that: The connecting mechanism (2) is used to tightly connect the oil guide pipe (3) and the main body (1), and the oil seal (105) and the oil injection needle (203) prevent oil from flowing back.

3. The planetary gear type speed differential for a locomotive according to claim 1, characterized in that: An oil storage mechanism (4) is provided at one end of the oil guide pipe (3) away from the main body (1), and the oil storage mechanism (4) includes an oil storage tank (403).

4. The planetary gear type speed differential for a locomotive according to claim 3, characterized in that: Two fixing plates (401) are provided on the back of the oil storage tank (403), and a plurality of mounting holes (402) are provided on the fixing plates (401).

5. The planetary gear type speed differential for a locomotive according to claim 4, characterized in that: A plurality of the mounting holes (402) are internally threadedly connected with fixing bolts, and the fixing plate (401) is connected to a thread of the electric tricycle via the fixing bolts.

6. The planetary gear type speed differential for a locomotive according to claim 4, characterized in that: The top of the oil storage tank (403) is rotatably connected to a top plate (405), the top of the top plate (405) is provided with a refueling port (406), and a sealing cover is threadedly connected to the refueling port (406).

7. The planetary gear type speed differential for a locomotive according to claim 4, characterized in that: An oil storage tank (407) is provided inside the oil storage box (403), and an oil pump (408) is installed below the inside of the oil storage tank (407).

8. The planetary gear type speed differential for a locomotive according to claim 7, characterized in that: The oil outlet end of the oil pump (408) is connected to the oil guide pipe (3).

9. The planetary gear type speed differential for a locomotive according to claim 4, characterized in that: The back of the oil storage tank (403) is provided with a second visual port (404), and the second visual port (404) is used to check the oil amount in the oil storage tank (403).

10. The planetary gear type speed differential for a locomotive according to claim 1, characterized in that: The back of the housing (101) is provided with a first visual port (107) for observing the amount of oil inside the main body (1). The two sides of the housing (101) are respectively provided with a first vehicle bar (102) and a second vehicle bar (103).

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