Gearbox for bogie, bogie and rail vehicle

Abstract

The invention relates to the field of railway vehicles, and provides a gearbox for a bogie, the bogie and a railway vehicle. The gearbox for the bogie comprises a box body which is suitable for being installed on one side of an axle, and a first reinforcing structure is arranged on the box body in the vertical direction of the box body; the shaft sleeve is suitable for sleeving an axle and is connected with at least one end of the box body; the box cover is suitable for being installed on the box body from the side, away from the box body, of the axle. According to the gearbox for the bogie, the first reinforcing structure is arranged on the box body in the vertical direction of the box body, the bearing capacity of the box body in the vertical direction is improved, and the bearing function and the rotating function of an axle are separated. The shaft sleeve is connected with at least one end of the box body, so that the box body can bear a certain bending moment while keeping the original transmission function, and the problem that the box body cannot bear the bending moment is solved. The box cover is arranged on the side, away from the box body, of the axle, and equivalently, the position of the box separation face of the box body is adjusted, so that the bearing capacity of the box body can be improved structurally.

Description

Technical Field

[0001] The invention relates to the field of rail vehicles and provides a gear box for a bogie, a bogie and a rail vehicle. Background Art

[0002] In the related art, the gearbox for the bogie of a rail vehicle mainly plays the role of transmitting traction force. The housing of the traditional bogie gearbox only plays the role of support and sealing. The axle matched with the bogie gearbox needs to realize the function of rotation while bearing the bending moment load. According to the box division method, the bogie gearbox is roughly divided into two types: integral type and split type. The integral box division surface is located at the upper part of the gearbox, and the split box division surface is coplanar with the center line of the axle. However, whether it is integral or split, there are the following disadvantages. For example, the housing does not have the ability to withstand bending moment, and it is impossible to separate the axle from the bending moment and rotation functions; although the split box method realizes the convenience of assembly or maintenance, it cannot achieve the effect of increasing the vertical load-bearing capacity of the housing. Summary of the invention

[0003] An embodiment of the present invention provides a gear box for a bogie, which is used to solve the defect in the related art that the box body cannot withstand bending moment and improve the vertical load-bearing capacity of the box body.

[0004] A second aspect of the present invention provides a bogie.

[0005] A third aspect of the present invention provides a rail vehicle.

[0006] A first aspect of the present invention provides a gearbox for a bogie, comprising:

[0007] A box body, adapted to be installed on one side of the axle, and a first reinforcement structure is arranged on the box body along the vertical direction of the box body;

[0008] A shaft sleeve, adapted to be sleeved on the axle and connected to at least one end of the box;

[0009] The box cover is suitable for being installed on the box body from the side of the axle facing away from the box body.

[0010] According to the bogie gearbox provided by the embodiment of the first aspect of the present invention, the first reinforcement structure is provided on the box body along the vertical direction of the box body, thereby improving the bearing capacity of the box body in the vertical direction and realizing the separation of the bearing and rotation functions of the axle. At the same time, the shaft sleeve is connected to at least one end of the box body, so that the box body can withstand a certain bending moment while retaining the original transmission function, thereby overcoming the problem that the box body cannot withstand bending moment in the related art. By providing a box cover on the side of the axle away from the box body, it is equivalent to adjusting the position of the box body's dividing surface, so that the box body can achieve an improvement in the bearing capacity in terms of structure.

[0011] According to one embodiment of the present invention, the sleeve comprises:

[0012] A first sleeve, which is passed through the motor side of the axle;

[0013] A second sleeve, which is passed through the wheel side of the axle;

[0014] A second reinforcement structure is disposed on the first sleeve and / or the second sleeve.

[0015] According to an embodiment of the present invention, from the first sleeve toward the box body, the axle is provided with a sealing cover, an oil retaining ring and a bearing cover in sequence;

[0016] The oil deflector ring is interference fit with the axle.

[0017] According to an embodiment of the present invention, a pinion shaft is passed through the housing, and the pinion shaft is a hollow shaft.

[0018] According to an embodiment of the present invention, both the motor side and the wheel side of the pinion shaft are provided with a flexible plate assembly, and the pinion shaft and the flexible plate assembly are connected via a connecting portion.

[0019] According to one embodiment of the present invention, the flexible plate assembly comprises:

[0020] A first spoke plate, wherein both ends of the first spoke plate are respectively provided with first connecting holes;

[0021] A second spoke plate, which is arranged perpendicular to the first spoke plate and has second connecting holes at both ends thereof;

[0022] A first flexible plate, two ends of which are respectively connected to one group of the first connection holes and the second connection holes;

[0023] A second flexible plate, two ends of which are respectively connected to another group of the first connection holes and the second connection holes.

[0024] According to one embodiment of the present invention, the two second spokes are arranged far away from each other, and a connecting rod is arranged between the two second spokes;

[0025] The pinion shaft is connected to the two second spoke plates respectively through the connecting parts.

[0026] A second aspect of the present invention provides a bogie, comprising the above-mentioned bogie gearbox.

[0027] The bogie provided in accordance with the second aspect of the present invention can improve the vertical load-bearing capacity of the bogie, reduce the space occupied by the gearbox, and simplify the overall structure of the bogie by providing the above-mentioned bogie gearbox.

[0028] According to an embodiment of the present invention, the sleeve comprises a first sleeve, the first sleeve is provided with a hanging hole, and the hanging hole is provided with an elastic mounting member;

[0029] The bogie comprises a driving motor, and the driving motor is suitable for being mounted on the hanging hole through the elastic mounting member.

[0030] A third aspect of the present invention provides a rail vehicle, comprising the above-mentioned bogie gearbox;

[0031] Or the bogie mentioned above.

[0032] According to the rail vehicle provided by the embodiment of the third aspect of the present invention, by providing the above-mentioned bogie gearbox or the above-mentioned bogie, it is possible to simplify the bottom vehicle structure of the rail vehicle, improve the vertical force of the rail vehicle, and ensure the driving safety of the rail vehicle.

[0033] According to one embodiment of the present invention,

[0034] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0035] According to the bogie gearbox provided by the embodiment of the first aspect of the present invention, the first reinforcement structure is provided on the box body along the vertical direction of the box body, thereby improving the bearing capacity of the box body in the vertical direction and realizing the separation of the bearing and rotation functions of the axle. At the same time, the shaft sleeve is connected to at least one end of the box body, so that the box body can withstand a certain bending moment while retaining the original transmission function, thereby overcoming the problem that the box body cannot withstand bending moment in the related art. By providing a box cover on the side of the axle away from the box body, it is equivalent to adjusting the position of the box body's dividing surface, so that the box body can achieve an improvement in the bearing capacity in terms of structure.

[0036] Furthermore, according to the bogie provided in the embodiment of the second aspect of the present invention, by providing the above-mentioned bogie gearbox, it is possible to improve the vertical load-bearing capacity of the bogie, reduce the space occupied by the gearbox, and simplify the overall structure of the bogie.

[0037] Furthermore, the rail vehicle provided in accordance with the third aspect of the embodiment of the present invention can simplify the bottom vehicle structure of the rail vehicle, improve the vertical force of the rail vehicle, and ensure the driving safety of the rail vehicle by providing the above-mentioned bogie gearbox or the above-mentioned bogie. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 is a schematic three-dimensional diagram of a gear box for a bogie provided by the present invention at one angle;

[0040] Figure 2 is a schematic three-dimensional diagram of the bogie gearbox provided by the present invention from another angle;

[0041] Figure 3 is a schematic side view of a gearbox for a bogie provided by the present invention;

[0042] Figure 4 It is a schematic structural diagram of the flexible board assembly provided by the present invention.

[0043] Reference numerals:

[0044] 100, box body; 102, axle; 104, first reinforcement structure; 106, box cover; 108, first bushing; 110, second bushing; 112, second reinforcement structure; 114, first spoke plate; 116, first connecting hole; 118, second spoke plate; 120, second connecting hole; 122, first flexible plate; 124, second flexible plate; 126, connecting rod; 128, hanging hole. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0046] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0047] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0048] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] like Figures 1 to 4 As shown, the first embodiment of the present invention provides a gearbox for a bogie, comprising:

[0051] The box body 100 is suitable for being installed on one side of the axle 102. A first reinforcement structure 104 is provided on the box body 100 along the vertical direction of the box body 100.

[0052] A shaft sleeve, adapted to be sleeved on the axle 102 and connected to at least one end of the box body 100;

[0053] The box cover 106 is suitable for being installed on the box body 100 at a side of the axle 102 facing away from the box body 100 .

[0054] According to the bogie gearbox provided by the embodiment of the first aspect of the present invention, by arranging the first reinforcement structure 104 on the box body 100 along the vertical direction of the box body 100, the load-bearing capacity of the box body 100 in the vertical direction is improved, and the separation of the load-bearing and rotation functions of the axle 102 is realized. At the same time, by connecting the shaft sleeve to at least one end of the box body 100, the box body 100 can withstand a certain bending moment while retaining the original transmission function, thus overcoming the problem that the box body 100 cannot withstand bending moment in the related art. By arranging the box cover 106 on the side of the axle 102 away from the box body 100, it is equivalent to adjusting the position of the box dividing surface of the box body 100, so that the box body 100 can achieve an improvement in the load-bearing capacity in structure.

[0055] Please continue to see Figures 1 to 4 In the bogie gearbox provided in the first embodiment of the present invention, the box body 100 is used to accommodate the driving gear and the driven gear, wherein the driving gear is connected to the driving motor, and the driven gear is connected to the axle 102. Therefore, when the driving motor is activated, the driving gear can be driven to activate, and then the driven gear is driven to drive the wheel to rotate.

[0056] Along the vertical direction of the box body 100, a first reinforcement structure 104 is formed on the outer surface of the box body 100, see Figure 3 In the embodiment of the present invention, the first reinforcement structure 104 may be a structure such as a load-bearing rib, a reinforcement block, etc. It is understandable that in the embodiment of the present invention, the first reinforcement structure 104 may be formed on the upper and lower surfaces of the box body 100. By such an arrangement, the load-bearing capacity of the box body 100 in the vertical direction may be improved. Of course, in some other embodiments, the first reinforcement structure 104 may also be formed only on the upper and lower surfaces of the box body 100. In addition, the specific structural form and arrangement of the first reinforcement structure 104 mentioned here are not specifically limited.

[0057] See also Figure 1 and Figure 3The bogie gearbox further includes a box cover 106, which is mounted on the box body 100 from the side of the axle 102 away from the box body 100. That is, in the embodiment of the present invention, the position of the box surface of the box body 100 is adjusted, so that the box body 100 can achieve an improvement in the structural load-bearing capacity, and also improves the bending resistance of the box body 100 in the vertical direction.

[0058] In the embodiment of the present invention, in order to improve the bearing capacity of the box 100 for bending moment, a sleeve is sleeved on the axle 102, and the sleeve is connected to at least one end of the box 100. It can be understood that the at least one end of the box 100 mentioned here refers to Figure 1 That is, when there is one shaft sleeve, the shaft sleeve can be connected to the left or right end of the box body 100, and when there are two shaft sleeves, the two shaft sleeves can be connected to the left and right ends of the box body 100 respectively. Through such an arrangement, the shaft sleeve and the first reinforcement structure 104 jointly improve the ability of the box body 100 to resist bending moment, so that the situation that the bending moment is originally borne only by the axle 102 is greatly alleviated, thereby overcoming the problem in the related art that the box body 100 cannot withstand bending moment.

[0059] See also Figure 1 According to one embodiment of the present invention, the sleeve includes a first sleeve 108 and a second sleeve 110; wherein the first sleeve 108 is passed through the motor side of the axle 102; the second sleeve 110 is passed through the wheel side of the axle 102; and a second reinforcement structure 112 is provided on the first sleeve 108 and / or the second sleeve 110.

[0060] In the embodiment of the present invention, the shaft sleeve includes a first shaft sleeve 108 located on the motor side and a second shaft sleeve 110 located on the wheel side, that is, as mentioned above, the first shaft sleeve 108 and the second shaft sleeve 110 are respectively connected to the left and right ends of the box body 100. Thus, the bogie gearbox can bear the bending moment of the axle 102 through the first shaft sleeve 108 and the second shaft sleeve 110 and the first reinforcement structure 104 on the box body 100.

[0061] In order to enhance the structural strength of the first sleeve 108 and the second sleeve 110 , a second reinforcement structure 112 is further provided on the first sleeve 108 and the second sleeve 110 , wherein the second reinforcement structure 112 may be a reinforcement bump, a reinforcement rib, or the like.

[0062] According to an embodiment of the present invention, in order to realize the connection between the first sleeve 108 and the housing 100 and realize the transmission of the driven gear, a sealing cover, an oil retaining ring and a bearing cover are sequentially arranged on the axle 102 from the first sleeve 108 to the housing 100. The sealing cover is used to seal the oil retaining ring and the bearing cover; the oil retaining ring is used to block the lubricating oil and prevent the lubricating oil from overflowing; the bearing cover is used to press the bearing to prevent the bearing from axial movement. The oil retaining ring is interference fit with the axle 102.

[0063] In some other embodiments, the sealing cover may be integrated into the first sleeve 108. In addition, the bearing body may be eliminated. When the relative radial displacement between the axle 102 and the first sleeve 108 is allowed, the large bearing may be eliminated, thereby reducing the maintenance cycle of the gearbox.

[0064] According to one embodiment of the present invention, the pinion shaft is a hollow shaft; a flexible plate assembly is provided on both the motor side and the wheel side of the pinion shaft, and the pinion shaft and the flexible plate assembly are connected via a connecting portion.

[0065] By arranging the pinion shaft as a hollow shaft, the coupling can pass through the interior of the pinion shaft, thereby greatly reducing the axial space requirement of the driving gear.

[0066] See also Figure 4 According to one embodiment of the present invention, the flexible plate assembly includes a first spoke 114, a second spoke 118, a first flexible plate 122 and a second flexible plate 124; wherein, first connecting holes 116 are respectively provided at both ends of the first spoke 114; the second spoke 118 and the first spoke 114 are arranged perpendicular to each other and second connecting holes 120 are respectively provided at both ends of the second spoke 118; both ends of the first flexible plate 122 are respectively connected to one group of the first connecting holes 116 and the second connecting holes 120; and both ends of the second flexible plate 124 are respectively connected to another group of the first connecting holes 116 and the second connecting holes 120.

[0067] In the embodiment of the present invention, the flexible plate assembly is used to realize the function of the coupling. The first spoke 114 and the second spoke 118 are arranged perpendicular to each other, wherein the first spoke 114 is close to the box body 100, and the second spoke 118 is far away from the box body 100. The first connecting holes 116 are respectively arranged at both ends of the first spoke 114, and the second connecting holes 120 are respectively arranged at both ends of the second spoke 118. The two ends of the first flexible plate 122 are respectively connected to one of the first connecting holes 116 and one of the second connecting holes 120, and the two ends of the second flexible plate 124 are respectively connected to the other first connecting hole 116 and the other second connecting hole 120.

[0068] In the embodiment of the present invention, the pinion shaft is provided with a flexible plate assembly on both the wheel side and the motor side. With such an arrangement, the pinion shaft on the motor side drives the second web 118 to generate torque through the output shaft of the driving motor, and the second web transmits the torque to the first web 114 through the first flexible plate 122 and the second flexible plate 124, and the first web drives the pinion shaft to rotate through the end face teeth, the tapered shaft and other connecting parts, and the pinion shaft on the wheel side transmits the torque to the first web 114 through the end face teeth, the tapered shaft and other connecting parts, and the first web 114 transmits the torque to the second web 118 through the first flexible plate 122 and the second flexible plate 124, thereby realizing the synchronous rotation of the pinion shaft and the output shaft of the driving motor.

[0069] According to an embodiment of the present invention, the two second spokes 118 are arranged far away from each other, and a connecting rod 126 is arranged between the two second spokes 118; the pinion shaft is connected to the two second spokes 118 through connecting parts.

[0070] In the embodiment of the present invention, a connecting rod 126 is provided between the two second spokes 118 to achieve connection between the two second spokes 118 , and the pinion shaft can be connected to the second spokes 118 through face teeth, a tapered shaft, etc.

[0071] A second aspect of the present invention provides a bogie, comprising the above-mentioned bogie gearbox.

[0072] The bogie provided in accordance with the second aspect of the present invention can improve the vertical load-bearing capacity of the bogie, reduce the space occupied by the gearbox, and simplify the overall structure of the bogie by providing the above-mentioned bogie gearbox.

[0073] According to one embodiment of the present invention, the bushing includes a first bushing 108, a hanging hole 128 is provided on the first bushing 108, and an elastic mounting member is provided in the hanging hole 128; the bogie includes a drive motor, and the drive motor is suitable for being installed in the hanging hole 128 through the elastic mounting member.

[0074] See also Figure 1 and Figure 2 A hanging hole 128 is provided on the first shaft sleeve 108, and the hanging hole 128 is connected to a hanging rod. The hanging rod is provided with elastic mounting parts such as rubber cakes, and the driving motor is mounted on the first shaft sleeve 108 through the rubber cakes.

[0075] A third aspect of the present invention provides a rail vehicle, comprising the above-mentioned bogie gearbox;

[0076] Or the bogie mentioned above.

[0077] According to the rail vehicle provided by the embodiment of the third aspect of the present invention, by providing the above-mentioned bogie gearbox or the above-mentioned bogie, it is possible to simplify the bottom vehicle structure of the rail vehicle, improve the vertical force of the rail vehicle, and ensure the driving safety of the rail vehicle.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gearbox for a bogie, characterized in that: include: A box body (100) is suitable for being installed on one side of an axle (102), and a first reinforcement structure (104) is arranged on the box body (100) along the vertical direction of the box body (100); A shaft sleeve, suitable for being sleeved on the axle (102) and connected to at least one end of the box (100); The box cover (106) is suitable for being installed on the box body (100) from the side of the axle (102) facing away from the box body (100).

2. The bogie gearbox according to claim 1, characterized in that: The sleeve comprises: A first shaft sleeve (108) is inserted through the motor side of the axle (102); A second shaft sleeve (110) is passed through the wheel side of the axle (102); A second reinforcement structure (112) is provided on the first shaft sleeve (108) and / or the second shaft sleeve (110).

3. The bogie gearbox according to claim 2, characterized in that: From the first shaft sleeve (108) toward the box body (100), a sealing cover, an oil retaining ring and a bearing cover are sequentially arranged on the axle (102); The oil deflector ring is interference fit with the axle (102).

4. The bogie gearbox according to claim 2, characterized in that: A pinion shaft is passed through the box body (100), and the pinion shaft is a hollow shaft.

5. The bogie gearbox according to claim 4, characterized in that: The motor side and the wheel side of the pinion shaft are both provided with flexible plate assemblies, and the pinion shaft and the flexible plate assembly are connected via a connecting portion.

6. The bogie gearbox according to claim 5, characterized in that: The flexible plate assembly comprises: A first spoke plate (114), wherein both ends of the first spoke plate (114) are respectively provided with first connection holes (116); A second spoke plate (118) is disposed perpendicularly to the first spoke plate (114) and second connection holes (120) are respectively disposed at two ends of the second spoke plate (118); A first flexible plate (122), two ends of the first flexible plate (122) being respectively connected to one group of the first connection holes (116) and the second connection holes (120); A second flexible plate (124), two ends of the second flexible plate (124) are respectively connected to another group of the first connection holes (116) and the second connection holes (120).

7. The bogie gearbox according to claim 6, characterized in that: The two second spokes (118) are arranged far away from each other, and a connecting rod (126) is arranged between the two second spokes (118); The pinion shaft is connected to the two second spoke plates (118) respectively through the connecting portion.

8. A bogie, characterized in that: It comprises the bogie gearbox as claimed in any one of claims 1 to 7.

9. The bogie according to claim 8, characterized in that The shaft sleeve comprises a first shaft sleeve (108), the first shaft sleeve (108) is provided with a hanging hole (128), and an elastic mounting piece is provided in the hanging hole (128); The bogie comprises a drive motor, and the drive motor is suitable for being mounted on the hanging hole (128) through the elastic mounting member.

10. A rail vehicle, characterized in that: A bogie gearbox according to any one of claims 1 to 7; Or a bogie as claimed in claim 8 or 9.

Images