Transmission case and automobile

Abstract

The utility model relates to a transmission case and an automobile and relates to the technical field of automobiles, the transmission case comprises a first shaft, a second shaft, a first rotating disc, a second rotating disc, a transmission shaft and a gear pair, the second shaft and the first shaft form an included angle alpha, and alpha is larger than 0 degree and smaller than 180 degrees; the first rotating disc is connected with the first shaft; the second rotating disc is connected with the second shaft; the transmission shafts are bent, one ends of the transmission shafts are in sliding connection with the first rotating disc, the other ends of the transmission shafts are in sliding connection with the second rotating disc, and at least two transmission shafts are arranged at intervals; the gear pair comprises a first gear and a second gear which are meshed with each other, the first gear is connected with the second shaft, and the axial direction of the first gear is parallel to the axial direction of the second gear. According to the transmission case, the movement direction is changed through the arrangement of the first shaft, the second shaft, the first rotating disc, the second rotating disc and the transmission shaft, the rotating speed ratio is changed through the arrangement of the gear pair, and compared with a spiral bevel gear pair, the efficiency is improved, and the manufacturing cost and the assembly process are reduced.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a transmission box and an automobile. Background Art

[0002] The transmission box (also known as the gearbox or transmission) is a device that changes the speed ratio and the direction of movement. It is used in automobiles, tractors, ships, machine tools and various machines to change the torque, speed and direction of movement transmitted from the driving shaft to the driven shaft according to different working conditions.

[0003] In order to change the speed ratio and the direction of movement, the transmission box usually includes a spiral bevel gear pair. However, the assembly process and manufacturing process of the bevel tooth surface of the spiral bevel gear pair are very complicated, which makes the production cost and production cycle long. Utility Model Content

[0004] Based on this, a transmission box and a car are provided. The transmission box changes the movement direction by setting the first shaft, the second shaft, the first rotating disk, the second rotating disk and the transmission shaft, and changes the speed ratio by setting the gear pair. Compared with the spiral bevel gear pair, the present application improves the efficiency, reduces the manufacturing cost and assembly process, and reduces the production cost and production cycle.

[0005] To this end, in a first aspect, an embodiment of the present application provides a transmission box, comprising: a first shaft; a second shaft, the second shaft forming an angle α with the first shaft, 0°<α<180°; a first rotating disk, coaxially connected to the first shaft; a second rotating disk, coaxially connected to the second shaft; a transmission shaft, which is bent, one bent end of the transmission shaft is slidably connected to the first rotating disk, and the other bent end of the transmission shaft is slidably connected to the second rotating disk, and at least two transmission shafts are provided and are spaced apart; and a gear pair, comprising a first gear and a second gear meshing with each other, the first gear being connected to the second shaft, and the axial direction of the first gear being arranged parallel to the axial direction of the second gear.

[0006] In one embodiment, the first gear and the second gear are helical gears.

[0007] In one embodiment, a first limiting portion is provided on the outer side of one end of the first shaft toward the first rotating disk, the first limiting portion extends along the axial direction of the first shaft, and the first rotating disk is provided with a second limiting portion engaged with the first limiting portion; and / or a third limiting portion is provided on the outer side of one end of the second shaft toward the second rotating disk, the third limiting portion extends along the axial direction of the second shaft, and the second rotating disk is provided with a fourth limiting portion engaged with the third limiting portion.

[0008] In one embodiment, the first shaft and the first rotating disk are detachably connected via a first locking member, and / or the second shaft and the second rotating disk are detachably connected via a second locking member.

[0009] In one embodiment, the transmission shaft is connected to the first rotating disk via a first sliding bearing, and / or the transmission shaft is connected to the second rotating disk via a second sliding bearing.

[0010] In one of the embodiments, sealing members are respectively provided at both ends of the transmission shaft.

[0011] In one of the embodiments, a mounting groove is provided at the end of the transmission shaft, and the blocking member is adapted to fit into the mounting groove.

[0012] In one embodiment, four transmission shafts are provided, one ends of the four transmission shafts are arranged at intervals around the center of the first shaft at the first rotating disk, and the other ends of the four transmission shafts are arranged at intervals around the center of the second shaft at the second rotating disk.

[0013] In one embodiment, the first shaft is further connected to an input gear, and the input gear is a helical gear.

[0014] In a second aspect, an embodiment of the present application provides a car, comprising a transmission box as described in any one of the above items.

[0015] According to the transmission box and automobile provided in the embodiment of the present application, they include a first shaft, a second shaft, a first rotating disk, a second rotating disk, a transmission shaft and a gear pair, the second shaft forms an angle α with the first shaft, and 0°<α<180°; the first rotating disk is coaxially connected to the first shaft; the second rotating disk is coaxially connected to the second shaft; the transmission shaft is bent, one end of the bent transmission shaft is slidably connected to the first rotating disk, and the other end of the bent transmission shaft is slidably connected to the second rotating disk, and at least two transmission shafts are provided and are spaced apart; the gear pair includes a first gear and a second gear meshing with each other, the first gear is connected to the second shaft, and the axial direction of the first gear is arranged parallel to the axial direction of the second gear.

[0016] The present application changes the direction of movement by setting up the first shaft, the second shaft, the first rotating disk, the second rotating disk and the transmission shaft, and changes the speed ratio by setting up the gear pair. Since the efficiency of the spiral bevel gear pair is 92% to 94%, and the efficiency of the gear pair of the present application is greater than or equal to 98.5%, the setting of the present application improves the efficiency. The present application is simpler to control noise, vibration and acoustic roughness than conventional spiral bevel gear pairs, and the cost is relatively lower. At the same time, the present application does not need to consider the offset distance, the distance from the center of the differential housing to the small spiral tooth positioning surface, and the distance from the large spiral tooth positioning surface to the center of the small spiral tooth when assembling the gear pair, and does not usually require multiple adjustment gaskets for adjustment; therefore, the present application improves efficiency, reduces manufacturing costs and assembly processes, and reduces production costs and production cycles compared to spiral bevel gear pairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram showing a partial structure of a transmission box provided in an embodiment of the present application Figure 1 ;

[0018] Figure 2 A schematic diagram showing a partial structure of a transmission box provided in an embodiment of the present application Figure 2 .

[0019] Description of reference numerals:

[0020] 1. First shaft; 11. First locking member; 2. Second shaft; 21. Second locking member; 3. First rotating disk; 31. First sliding bearing; 4. Second rotating disk; 41. Second sliding bearing; 5. Transmission shaft; 51. First bending portion; 52. Second bending portion; 53. Blocking member; 6. Gear pair; 61. First gear; 62. Second gear; 7. Differential housing; 8. Input gear. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0024] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] The existing transmission box includes a helical gear pair in order to change the speed ratio and the direction of movement. However, the assembly process and manufacturing process of the bevel tooth surface of the spiral bevel gear pair are very complicated, which makes the production cost and production cycle long.

[0026] To solve the above problems, refer to Figure 1-Figure 2 , Figure 1 A schematic diagram showing a partial structure of a transmission box provided in an embodiment of the present application Figure 1 , Figure 2 A schematic diagram showing a partial structure of a transmission box provided in an embodiment of the present application Figure 2 The present application provides a transmission box, which includes a first shaft 1, a second shaft 2, a first rotating disk 3, a second rotating disk 4, a transmission shaft 5 and a gear pair 6. The second shaft 2 forms an angle α with the first shaft 1, 0°<α<180°; the first rotating disk 3 is coaxially connected to the first shaft 1; the second rotating disk 4 is coaxially connected to the second shaft 2; the transmission shaft 5 is bent, one end of the bent transmission shaft 5 is slidably connected to the first rotating disk 3, and the other end of the bent transmission shaft 5 is slidably connected to the second rotating disk 4. At least two transmission shafts 5 are provided and are spaced apart; the gear pair 6 includes a first gear 61 and a second gear 62 that mesh with each other, the first gear 61 is connected to the second shaft 2, and the axial direction of the first gear 61 is parallel to the axial direction of the second gear 62.

[0027] It should be understood that the transmission box includes a first axis 1 and a second axis 2, and the materials of the first axis 1 and the second axis 2 are both rigid materials, such as metal materials, which are not limited in this application. The first axis 1 and the second axis 2 are both arranged in a long strip shape, and the first axis 1 and the second axis 2 can be cylindrical or rectangular, which are not limited in this application. The first axis 1 and the second axis 2 are not parallel, and an angle α is formed between the two, and 0°<α<180°, and the angle of α can be 10°, 30°, 60°, 90°, 120°, 150°, 170°, etc., which can be set according to the specific circumstances, and are not limited in this application. However, when it is necessary to change the direction of movement from a horizontal plane to a vertical plane, or to change the direction of movement from a numerical plane to a horizontal plane, the angle α is 90°.

[0028] The first rotating disk 3 is coaxially connected to the first shaft 1, and the first rotating disk 3 is set in a disc shape. The material of the first rotating disk 3 is a rigid material, such as a metal material, which is not limited in this application. The connection between the first rotating disk 3 and the first shaft 1 can be a fixed connection or a detachable connection, such as welding the first rotating disk 3 to the first shaft 1 or connecting it by bolts, which is not limited in this application. When working, the first shaft 1 rotates around its own central axis, driving the first rotating disk 3 to rotate around its own central axis.

[0029] The second rotating disk 4 is coaxially connected to the second shaft 2, and the second rotating disk 4 is set in a disc shape. The material of the second rotating disk 4 is a rigid material, such as a metal material, which is not limited in this application. The connection method between the second rotating disk 4 and the second shaft 2 can be a fixed connection or a detachable connection, such as welding the second rotating disk 4 to the second shaft 2 or connecting it by bolts, which is not limited in this application. When working, the second rotating disk 4 rotates around its own central axis, driving the second shaft 2 to rotate around its own central axis.

[0030] The material of the transmission shaft 5 is a rigid material, such as a metal material, which is not limited in the present application, and preferably a wear-resistant and high-strength steel material. The transmission shaft 5 is bent, and the transmission shaft 5 includes an integrally formed first bending portion 51 and a second bending portion 52. The first bending portion 51 and the second bending portion 52 form an angle, and the angle of the first bending portion 51 is equal to the angle α, so that the end of the first bending portion 51 away from the second bending portion 52 is slidably connected to the first rotating disk 3, and the end of the second bending portion 52 away from the first bending portion 51 is slidably connected to the second rotating disk 4. During operation, the first rotating disk 3 slides back and forth relative to the length direction of the first bending portion 51, and the second rotating disk 4 reciprocates relative to the length direction of the second bending portion 52.

[0031] Among them, at least two transmission shafts 5 are arranged at intervals. The number of transmission shafts 5 can be two, three, four or other numbers, and the present application does not impose any restrictions. The setting of at least two transmission shafts 5 restricts the first rotating disk 3 and the second rotating disk 4 to prevent the first rotating disk 3 from rotating relative to the first bending portion 51 and to prevent the second rotating disk 4 from rotating relative to the second bending portion 52.

[0032] The transmission box also includes a gear pair 6, which includes a first gear 61 and a second gear 62. The first gear 61 is sleeved on the second shaft 2, and the first gear 61 is fixedly connected to the second shaft 2. When the second shaft 2 rotates, the first gear 61 is driven to rotate. The second gear 62 is meshed with the first gear 61. When the first gear 61 rotates, the second gear 62 rotates. Among them, the axial direction of the first gear 61 is arranged parallel to the axial direction of the second gear 62, that is, the first gear 61 and the second gear 62 can be spur gears or helical gears, which is not limited in this application, so as to facilitate the meshing of the first gear 61 and the second gear 62. The sizes of the first gear 61 and the second gear 62 can be different to facilitate the change of the transmission ratio. In one example, the size of the second gear 62 is larger than the size of the first gear 61.

[0033] The second gear 62 is also sleeved with a differential housing 7, which is fixedly connected to the second gear 62. The arrangement of the differential housing 7 can transmit the output torque to the half-axle of the vehicle.

[0034] During operation, the first shaft 1 rotates around its own axial direction, and the rotation of the first shaft 1 drives the first rotating disk 3 to rotate. The first rotating disk 3 rotates around itself, so that the first rotating disk 3 drives the transmission shaft 5 to move, and the first bent portion 51 of the transmission shaft 5 rotates around the first axis 1 and the first bent portion 51 of the transmission shaft 5 slides axially relative to the first rotating disk 3. The movement of the first bent portion 51 of the transmission shaft 5 drives the second bent portion 5 of the transmission shaft 5 to move, and the second bent portion 52 of the transmission shaft 5 rotates around the second axis 2 and the second bent portion 5 of the transmission shaft 5 slides axially relative to the second rotating disk 4. The movement of the transmission shaft 5 drives the second rotating disk 4 to rotate around its own central axis, and the rotation of the second rotating disk 4 drives the second shaft 2 to rotate, and the rotation of the second shaft 2 drives the gear pair 6 to move.

[0035] The present application changes the direction of movement by setting the first shaft 1, the second shaft 2, the first rotating disk 3, the second rotating disk 4 and the transmission shaft 5, and changes the speed ratio by setting the gear pair 6. Since the efficiency of the spiral bevel gear pair is 92% to 94%, and the efficiency of the gear pair 6 of the present application is greater than or equal to 98.5%, the setting of the present application improves the efficiency. The noise, vibration and acoustic roughness (NVH) control of the present application is simpler than that of the conventional spiral bevel gear pair, and the cost is relatively lower. At the same time, when assembling the gear pair 6, the present application does not need to consider the offset distance, the distance from the center of the differential housing to the small spiral tooth positioning surface, and the distance from the large spiral tooth positioning surface to the center of the small spiral tooth, and does not usually require multiple adjustment gaskets for adjustment; and the present application is easier to prepare than the conventional spiral bevel gear pair. Therefore, the present application improves the efficiency, reduces the manufacturing cost and assembly process, and reduces the production cost and production cycle compared to the spiral bevel gear pair.

[0036] Reference Figure 1 and Figure 2 In some optional embodiments, the first gear 61 and the second gear 62 are helical gears. Compared with the first gear 61 and the second gear 62 being spur gears, the setting of the helical gears can make the first gear 61 and the second gear 62 mesh more closely, reduce the probability of the first gear 61 and the second gear 62 falling off, and improve the assembly effect.

[0037] In some optional embodiments, a first limiting portion (not shown in the figure) is provided on the outer side of one end of the first shaft 1 facing the first rotating disk 3, the first limiting portion extends along the axial direction of the first shaft 1, and the first rotating disk 3 is provided with a second limiting portion (not shown in the figure) engaged with the first limiting portion. The material of the first limiting portion can be the same as that of the first shaft 1, that is, the first limiting portion and the first shaft 1 are integrally formed and arranged, and the first limiting portion can also be detachably connected to the first shaft 1, and this application does not impose any restrictions. The material of the second limiting portion can be the same as that of the first rotating disk 3, that is, the second limiting portion and the first rotating disk 3 are integrally formed and arranged, and the second limiting portion can also be detachably connected to the first rotating disk 3.

[0038] Among them, either the first limiting portion or the second limiting portion is a protrusion, and the other is a groove, and the first limiting portion and the second limiting portion both extend along the length direction of the first shaft 1, thereby preventing the first shaft 1 and the first rotating disk 3 from rotating relative to each other.

[0039] In one example, the first limiting portion is a protrusion and is integrally formed with the first shaft 1, and the second limiting portion is a groove adapted to the first limiting portion. In order to further improve the stability of the connection between the first shaft 1 and the first rotating disk 3, the first limiting portion is provided with multiple portions and is arranged circumferentially at intervals around the first shaft 1.

[0040] In one example, the second limiting portion is a protrusion and is integrally formed with the first rotating disk 3, the first limiting portion is a groove adapted to the second limiting portion, and a plurality of first limiting portions are provided and arranged at intervals.

[0041] In one example, the first limiting portion is a spline and is sleeved on the outer circumference of the first shaft 1 , and the second limiting portion is a groove adapted to the spline.

[0042] In some optional embodiments, a third limiting portion (not shown in the figure) is provided on the outer side of one end of the second shaft 2 facing the second rotating disk 4, the third limiting portion extends along the axial direction of the second shaft 2, and the second rotating disk 4 is provided with a fourth limiting portion (not shown in the figure) engaged with the third limiting portion. The material of the third limiting portion can be the same as that of the second shaft 2, that is, the third limiting portion and the second shaft 2 are integrally formed and arranged, and the third limiting portion can also be detachably connected to the second shaft 2, which is not limited in this application. The material of the fourth limiting portion can be the same as that of the second rotating disk 4, that is, the fourth limiting portion and the second rotating disk 4 are integrally formed and arranged, and the fourth limiting portion can also be detachably connected to the second rotating disk 4.

[0043] Among them, either the third limiting portion or the fourth limiting portion is a protrusion, and the other is a groove, and the third limiting portion and the fourth limiting portion both extend along the length direction of the second shaft 2, thereby preventing the second shaft 2 and the second rotating disk 4 from rotating relative to each other.

[0044] In one example, the third limiting portion is a protrusion and is integrally formed with the second shaft 2, and the fourth limiting portion is a groove adapted to the third limiting portion. In order to further improve the stability of the connection between the second shaft 2 and the second rotating disk 4, the third limiting portion is provided in plurality and is arranged circumferentially at intervals around the second shaft 2.

[0045] In one example, the fourth limiting portion is a protrusion and is integrally formed with the second rotating disk 4, the third limiting portion is a groove adapted to the fourth limiting portion, and a plurality of third limiting portions are provided and arranged at intervals.

[0046] In one example, the third limiting portion is a spline and is sleeved on the outer circumference of the second shaft 2, and the fourth limiting portion is a groove adapted to the spline.

[0047] In some optional embodiments, the first shaft 1 and the first rotating disk 3 are detachably connected via a first locking member 11. The first rotating disk 3 is provided with a first mounting hole (not shown in the figure) adapted to the first shaft 1. During installation, the first shaft 1 is inserted into the first mounting hole of the first shaft 1. One end of the first locking member 11 is provided with a thread, and the other end of the first locking member 11 is provided with a locking portion, the locking portion being larger than the first mounting hole. During installation, the end of the first locking member 11 provided with a thread is connected to the threaded hole of the first shaft 1, and the locking portion of the first locking member 11 abuts against the first rotating disk 3, thereby connecting the first shaft 1 to the first rotating disk 3 while preventing the first shaft 1 from falling off from the first rotating disk 3. The provision of the first locking member 11 facilitates the connection of the first shaft 1 to the first rotating disk 3, and also facilitates the disassembly or replacement of the first shaft 1 and the first rotating disk 3.

[0048] Reference Figure 1 and Figure 2 In some optional embodiments, the second shaft 2 and the second rotating disk 4 are detachably connected via a second locking member 21. The second rotating disk 4 is provided with a second mounting hole (not shown in the figure) adapted to the second shaft 2. During installation, the second shaft 2 is inserted into the second mounting hole of the second shaft 2. One end of the second locking member 21 is provided with a thread, and the other end of the second locking member 21 is provided with a locking portion, which is larger than the second mounting hole. During installation, the end of the second locking member 21 provided with a thread is connected to the threaded hole of the second shaft 2, and the locking portion of the second locking member 21 abuts against the second rotating disk 4, thereby connecting the second shaft 2 to the second rotating disk 4 while preventing the second shaft 2 from falling off from the second rotating disk 4. The provision of the second locking member 21 facilitates the connection of the second shaft 2 to the second rotating disk 4, and also facilitates the disassembly or replacement of the second shaft 2 and the second rotating disk 4.

[0049] Reference Figure 1 and Figure 2 In some optional embodiments, the transmission shaft 5 is connected to the first rotating disk 3 via a first sliding bearing 31. That is, a first sliding bearing 31 is provided between the first bending portion 51 of the transmission shaft 5 and the first rotating disk 3. The provision of the first sliding bearing 31 can make the movement between the transmission shaft 5 and the first rotating disk 3 smoother, and also reduce the noise generated by the movement between the transmission shaft 5 and the first rotating disk 3.

[0050] In some optional embodiments, the transmission shaft 5 is connected to the second rotating disk 4 via a second sliding bearing 41. That is, a second sliding bearing 41 is provided between the second bent portion 52 of the transmission shaft 5 and the second rotating disk 4. The provision of the second sliding bearing 41 can make the movement between the transmission shaft 5 and the second rotating disk 4 smoother, and also reduce the sound generated by the movement between the transmission shaft 5 and the second rotating disk 4.

[0051] In some optional embodiments, blocking members 53 are respectively provided at both ends of the transmission shaft 5. That is, the end of the first bending portion 51 of the transmission shaft 5 away from the second bending portion 52 is provided with a blocking member 53, and the end of the second bending portion 52 of the transmission shaft 5 away from the first bending portion 51 is provided with a blocking member 53. The blocking member 53 and the transmission shaft 5 can be connected in a detachable connection manner or in a welding manner. After the transmission shaft 5 is connected to the first rotating disk 3 and the second rotating disk 4, the blocking member 53 is connected to the transmission shaft 5, thereby further preventing the transmission shaft 5 from falling off from the first rotating disk 3 and the second rotating disk 4.

[0052] In some optional embodiments, a mounting groove (not shown) is provided at the end of the transmission shaft 5, and the blocking member 53 is adapted to the mounting groove. That is, the blocking member 53 is detachably connected to the transmission shaft 5, thereby facilitating the installation of the transmission shaft 5 and the first rotating disk 3 and the second rotating disk 4. The blocking member 53 can be a retaining spring. The mounting groove is an annular groove and surrounds the transmission shaft 5.

[0053] In some optional embodiments, four transmission shafts 5 are provided, one end of the four transmission shafts 5 is arranged at intervals at the first rotating disk 3 around the center of the first shaft 1, and the other end of the four transmission shafts 5 is arranged at intervals at the second rotating disk 4 around the center of the second shaft 2. Four transmission shafts 5 are provided, so that the connection between the transmission shaft 5 and the first rotating disk 3 and the second rotating disk 4 is more stable, thereby improving the stability of the present application.

[0054] In some optional embodiments, the first shaft 1 is further connected to an input gear 8. The first shaft 1 can be directly connected to a driving member, and the driving member drives the first shaft 1 to rotate. The first shaft 1 can also be connected to the driving member through an input gear 8, and the input gear 8 is sleeved and fixed on the first shaft 1. The input gear 8 can mesh with other gears to facilitate the connection of other driving sources in this application.

[0055] In some optional embodiments, the input gear 8 is a helical gear. Compared with the input gear 8 being a spur gear, the setting of the helical gear improves the stability of the connection between the input gear 8 and other gears.

[0056] The present application also includes a car, which includes a transmission box as described in any one of the above items. The transmission box includes a first shaft 1, a second shaft 2, a first rotating disk 3, a second rotating disk 4, a transmission shaft 5 and a gear pair 6, the second shaft 2 forms an angle α with the first shaft 1, 0°<α<180°; the first rotating disk 3 is coaxially connected to the first shaft 1; the second rotating disk 4 is coaxially connected to the second shaft 2; the transmission shaft 5 is bent, one end of the bent transmission shaft 5 is slidably connected to the first rotating disk 3, and the other end of the bent transmission shaft 5 is slidably connected to the second rotating disk 4, and at least two transmission shafts 5 are provided and are spaced apart; the gear pair 6 includes a first gear 61 and a second gear 62 that mesh with each other, the first gear 61 is connected to the second shaft 2, and the axial direction of the first gear 61 is parallel to the axial direction of the second gear 62.

[0057] The present application changes the direction of movement by setting the first shaft 1, the second shaft 2, the first rotating disk 3, the second rotating disk 4 and the transmission shaft 5, and changes the speed ratio by setting the gear pair 6. Compared with the spiral bevel gear pair, the present application improves efficiency, reduces manufacturing cost and assembly process, and reduces production cost and production cycle.

[0058] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A transmission box, characterized in that: include: First axis (1); a second axis (2), wherein the second axis (2) forms an angle α with the first axis (1), 0°<α<180°; A first rotating disk (3) coaxially connected to the first shaft (1); A second rotating disk (4) coaxially connected to the second shaft (2); a transmission shaft (5) which is bent, one end of the transmission shaft (5) being slidably connected to the first rotating disk (3), and the other end of the transmission shaft (5) being slidably connected to the second rotating disk (4), and at least two transmission shafts (5) being arranged at intervals; and The gear pair (6) comprises a first gear (61) and a second gear (62) meshing with each other, the first gear (61) being connected to the second shaft (2), and the axial direction of the first gear (61) being arranged parallel to the axial direction of the second gear (62).

2. The transmission box according to claim 1, characterized in that: The first gear (61) and the second gear (62) are helical gears.

3. The transmission box according to claim 1, characterized in that: A first limiting portion is provided on the outer side of one end of the first shaft (1) facing the first rotating disk (3), the first limiting portion extends along the axial direction of the first shaft (1), and the first rotating disk (3) is provided with a second limiting portion engaged with the first limiting portion; and / or a third limiting portion is provided on the outer side of one end of the second shaft (2) facing the second rotating disk (4), the third limiting portion extends along the axial direction of the second shaft (2), and the second rotating disk (4) is provided with a fourth limiting portion engaged with the third limiting portion.

4. The transmission box according to claim 1, characterized in that: The first shaft (1) and the first rotating disk (3) are detachably connected via a first locking member (11), and / or the second shaft (2) and the second rotating disk (4) are detachably connected via a second locking member (21).

5. The transmission box according to claim 1, characterized in that: The transmission shaft (5) is connected to the first rotating disk (3) via a first sliding bearing (31), and / or the transmission shaft (5) is connected to the second rotating disk (4) via a second sliding bearing (41).

6. The transmission box according to claim 1, characterized in that: Both ends of the transmission shaft (5) are respectively provided with blocking pieces (53).

7. The transmission box according to claim 6, characterized in that: The end of the transmission shaft (5) is provided with a mounting groove, and the blocking member (53) is adapted to fit in the mounting groove.

8. The transmission box according to claim 1, characterized in that: Four transmission shafts (5) are provided, one end of the four transmission shafts (5) are arranged at intervals around the center of the first shaft (1) at the first rotating disk (3), and the other end of the four transmission shafts (5) are arranged at intervals around the center of the second shaft (2) at the second rotating disk (4).

9. The transmission box according to claim 1, characterized in that: The first shaft (1) is also connected to an input gear (8), and the input gear (8) is a helical gear.

10. An automobile, characterized in that: Comprising the transmission box as described in any one of claims 1-9.

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