Gearbox for ballast excavation operations of railway engineering vehicles

Abstract

The utility model discloses a gear box for railway engineering vehicle ballast excavation operation relates to railway track vehicle operation equipment technical field, it includes box body, still includes drive arrangement and water pump, the input shaft, first gear shaft, second gear shaft and output shaft are arranged in box body in proper order and vertically, be provided with first gear ring on the input shaft, be provided with first cylindrical gear and second gear ring on first gear shaft, and first cylindrical gear is engaged with first gear ring, be provided with second cylindrical gear and third gear ring on second gear shaft, and second cylindrical gear is engaged with second gear ring, be provided with third cylindrical gear on output shaft, and third cylindrical gear is engaged with third gear ring, the upper end of input shaft is connected with drive arrangement after stretching out of box body, and drive arrangement is used for driving input shaft rotation, the lower end of input shaft is connected with water pump after stretching out of box body, and input shaft drives water pump work, and cooling liquid is transported to the target site of box body and carries out the cooling.

Description

Technical Field

[0001] This utility model relates to the technical field of railway track vehicle operation equipment, specifically a gearbox used in ballast excavation operations for railway engineering vehicles. Background Technology

[0002] Railway engineering vehicles require a large torque for ballast excavation. The installation space on the vehicle is irregular, the existing gearboxes have a small speed ratio and insufficient output torque, and their regular shape makes installation on the vehicle difficult and cannot meet the vehicle's operational needs. In addition, the bearings generate a lot of heat during vehicle operation, and due to the compact structure, heat dissipation is difficult, which can easily cause overheating. Summary of the Invention

[0003] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a gearbox for ballast excavation operations of railway engineering vehicles, which can achieve a large speed ratio, ensure the torque required for operation, and dissipate heat at each bearing while the gearbox is working.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a gearbox for ballast excavation operations of railway engineering vehicles, comprising a gearbox body, a drive device, and a water pump; an input shaft, a first gear shaft, a second gear shaft, and an output shaft are vertically arranged sequentially within the gearbox body; a first gear ring is provided on the input shaft; a first cylindrical gear and a second gear ring are provided on the first gear shaft, and the first cylindrical gear meshes with the first gear ring; a second cylindrical gear and a third gear ring are provided on the second gear shaft, and the second cylindrical gear meshes with the second gear ring; a third cylindrical gear is provided on the output shaft, and the third cylindrical gear meshes with the third gear ring; the upper end of the input shaft extends out of the gearbox body and is connected to the drive device, which drives the input shaft to rotate; the lower end of the input shaft extends out of the gearbox body and is connected to the water pump, which drives the water pump to deliver coolant to the target part of the gearbox body for cooling.

[0005] A further improvement is that the box body includes an upper box and a lower box that are connected to each other.

[0006] A further improvement is that a sprocket is connected to the lower end of the output shaft after it extends out of the housing body.

[0007] A further improvement is that the input shaft, the first gear shaft, the second gear shaft, and the output shaft are respectively fixed to the inner wall of the housing via bearings.

[0008] A further improvement is that the bearing mounting part of the box body is provided with a cooling groove, and the water pump is connected to each cooling groove through a cooling channel.

[0009] A further improvement is that it also includes a lubricating oil pump. The upper end of the first gear shaft extends out of the housing body and is connected to the lubricating oil pump. The first gear shaft drives the lubricating oil pump to work and delivers lubricating oil to each bearing part through the oil passage.

[0010] A further improvement is that a filter is installed inside the housing, and the filter is connected to the oil passage.

[0011] Further improvements include: the main body of the tank is equipped with an oil drain plug, an oil level gauge, and a vent.

[0012] A further improvement is that internal splines for connecting the drive device and the water pump are respectively provided at both ends of the input shaft.

[0013] A further improvement is that the driving device is a motor or electric motor, and the driving device is connected to the input shaft through a coupling or a reducer.

[0014] The beneficial effects of this utility model are as follows: 1. In this utility model, each cylindrical gear is in a constant meshing state, and multiple gear pairs are provided, which can achieve a large speed ratio and ensure the torque required for operation.

[0015] 2. In this utility model, the power of the drive device is used to drive the water pump at the same time, and heat is dissipated at each bearing while the gearbox is working.

[0016] 3. In this utility model, the power of the first gear shaft is used to drive the lubricating oil pump to supply oil. The lubricating oil output by the lubricating oil pump reaches each bearing part through the oil passage set outside the housing, so as to meet the lubrication of each bearing.

[0017] 4. This utility model optimizes the shape of the gearbox according to the space on the vehicle, making it suitable for vehicle installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the gearbox structure in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the gearbox in an embodiment of this utility model.

[0019] Figure label: 1-Box body; 11-Lower box body; 12-Upper box body; 13-Bearing; 14-Ventilator; 15-Drain plug; 16-Oil level sight glass; 2-Input shaft; 21-First gear ring; 3-First gear shaft; 31-First cylindrical gear; 32-Second gear ring; 4-Second gear shaft; 41-Second cylindrical gear; 42-Third gear ring; 5-Output shaft; 51-Third cylindrical gear; 52-Sprocket; 6-Drive unit; 7-Lubricating oil pump; 71-Oil passage; 72-Filter; 8-Water pump; 81-Cooling passage. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0021] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] See Figure 1 and Figure 2 As shown, this utility model embodiment provides a gearbox for ballast excavation operations in railway engineering vehicles, including a gearbox body 1, a drive device 6, and a water pump 8; specifically, the gearbox body 1 includes an upper gearbox 12 and a lower gearbox 11 connected to each other. The gearbox body 1 is provided with an oil drain plug 15, an oil level gauge 16, and a vent 14.

[0027] See Figure 2 As shown, an input shaft 2, a first gear shaft 3, a second gear shaft 4, and an output shaft 5 are vertically arranged sequentially inside the housing body 1. A first gear ring 21 is mounted on the input shaft 2. A first cylindrical gear 31 and a second gear ring 32 are mounted on the first gear shaft 3, with the first cylindrical gear 31 meshing with the first gear ring 21. A second cylindrical gear 41 and a third gear ring 42 are mounted on the second gear shaft 4, with the second cylindrical gear 41 meshing with the second gear ring 32. A third cylindrical gear 51 is mounted on the output shaft 5, and the third cylindrical gear 51 meshes with the third gear ring 42. Specifically, a sprocket 52 is connected to the lower end of the output shaft 5 after it extends out of the housing body 1. The input shaft 2, the first gear shaft 3, the second gear shaft 4, and the output shaft 5 are fixed to the inner wall of the housing body 1 by bearings 13.

[0028] See Figure 2 As shown, the upper end of the input shaft 2 extends out of the housing body 1 and is connected to the drive device 6, which drives the input shaft 2 to rotate. Specifically, both ends of the input shaft 2 are provided with internal splines for connecting the drive device 6 and the water pump 8. The drive device 6 is a motor or electric motor, and it is connected to the input shaft 2 via a coupling or a reducer.

[0029] See Figure 2As shown, the lower end of the input shaft 2 extends out of the housing body 1 and connects to the water pump 8. The input shaft 2 drives the water pump 8 to work, delivering coolant to the target part of the housing body 1 for cooling. Specifically, the bearing 13 mounting part of the housing body 1 is provided with a cooling tank, and the water pump 8 is connected to each cooling tank through the cooling channel 81.

[0030] See Figure 2 As shown, the gearbox also includes a lubricating oil pump 7. The upper end of the first gear shaft 3 extends out of the gearbox body 1 and is connected to the lubricating oil pump 7. The first gear shaft 3 drives the lubricating oil pump 7 to work, and delivers lubricating oil to each bearing 13 through the oil passage 71. A filter 72 is installed inside the gearbox body 1, and the filter 72 is connected to the oil passage 71.

[0031] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A gearbox for ballast excavation operations in railway engineering vehicles, comprising a gearbox body (1), characterized in that: It also includes a drive unit (6) and a water pump (8); The housing body (1) is vertically arranged with an input shaft (2), a first gear shaft (3), a second gear shaft (4), and an output shaft (5) in sequence. The input shaft (2) is provided with a first gear ring (21). The first gear shaft (3) is provided with a first cylindrical gear (31) and a second gear ring (32), and the first cylindrical gear (31) meshes with the first gear ring (21). The second gear shaft (4) is provided with a second cylindrical gear (41) and a third gear ring (42), and the second cylindrical gear (41) meshes with the second gear ring (32). The output shaft (5) is provided with a third cylindrical gear (51), and the third cylindrical gear (51) meshes with the third gear ring (42). The upper end of the input shaft (2) extends out of the housing body (1) and is connected to the drive device (6). The drive device (6) is used to drive the input shaft (2) to rotate. The lower end of the input shaft (2) extends out of the box body (1) and is connected to the water pump (8). The input shaft (2) drives the water pump (8) to work and deliver coolant to the target part of the box body (1) for cooling.

2. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 1, characterized in that: The box body (1) includes an upper box body (12) and a lower box body (11) that are connected to each other.

3. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 1, characterized in that: The lower end of the output shaft (5) extends out of the housing body (1) and is connected to a sprocket (52).

4. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 1, characterized in that: The input shaft (2), the first gear shaft (3), the second gear shaft (4) and the output shaft (5) are fixed to the inner wall of the housing body (1) by bearings (13).

5. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 4, characterized in that: The bearing (13) mounting part of the box body (1) is provided with a cooling groove, and the water pump (8) is connected to each cooling groove through a cooling channel (81).

6. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 4, characterized in that: It also includes a lubricating oil pump (7). The upper end of the first gear shaft (3) extends out of the housing body (1) and is connected to the lubricating oil pump (7). The first gear shaft (3) drives the lubricating oil pump (7) to work and delivers lubricating oil to each bearing (13) through the oil passage (71).

7. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 6, characterized in that: The housing body (1) is equipped with a filter (72), and the filter (72) is connected to the oil passage (71).

8. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 1, characterized in that: The main body (1) of the tank is equipped with an oil drain plug (15), an oil level gauge (16) and a vent (14).

9. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 1, characterized in that: The input shaft (2) has internal splines at both ends for connecting the drive device (6) and the water pump (8).

10. The gearbox for ballast excavation operations in railway engineering vehicles according to claim 1, characterized in that: The drive device (6) is a motor or electric motor, and the drive device (6) is connected to the input shaft (2) through a coupling or a reducer.

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