[0021] like figure 1 and figure 2 As shown, the four-wheel drive axle for an obstacle-crossing vehicle of the present invention includes a drive axle housing 4, a left output shaft 2 and a right output shaft 3, and the left output shaft 2 is installed on the left side of the drive axle housing 4 along the left-right direction. , the right output shaft 4 is installed on the right side of the transaxle housing 4 along the left-right direction. When in use, the power input shaft 1 can drive the left output shaft 2 and the right output shaft 3 to rotate.
[0022] The right end of the drive axle housing 4 is provided with a right swinging beam 6 along the front-rear direction, the right swinging beam 6 is made of steel or aluminum alloy, and the middle part of the right swinging beam 6 is rotatably connected to the right end of the drive axle housing 4 , the right output shaft 3 extends rightward to the right swing beam 6, the shaft section of the right output shaft 3 located at the right swing beam 6 is sleeved with a sprocket or a synchronous pulley, and the right output shaft 3 is connected to the The front right axle 7 and the rear right axle 8 are connected in a transmission, the front right axle 7 is located in the front of the right output shaft 3, the rear right axle 8 is located in the rear of the right output axle 3, the axis of the front right axle 7 and the rear right axle 8 Its axis is parallel to the axis of the right output shaft 3, the front right axle 7 is rotatably mounted on the front of the right swinging beam 6, and the rear right axle 8 is rotatably mounted on the rear of the right swinging beam 6; in use, the right The outer end of the output shaft 3 can drive the front right axle 7 and the rear right axle 8 to rotate. The right axle 7 and the rear right axle 8 are made of steel;
[0023] The left end of the drive axle housing 4 is provided with a left swing beam 9 along the front-rear direction, the left swing beam 9 is made of steel or aluminum alloy, and the middle part of the left swing beam 9 is rotatably connected to the left end of the drive axle housing 4 , the left output shaft 2 extends to the left to the left swing beam 9, the shaft section of the left output shaft 2 located at the left swing beam 9 is sleeved with a sprocket or a synchronous pulley, and the left output shaft 2 is connected with the transmission chain or the synchronous belt respectively. The front left axle 10 and the rear left axle 11 are connected by transmission, the front left axle 10 is located in the front of the left output shaft 2, the rear left axle 11 is located in the rear of the left output axle 2, the axis of the front left axle 10 and the rear left axle 11 Its axis is parallel to the axis of the left output shaft 2 , the front left axle 10 is rotatably mounted on the front of the left swing beam 9 , and the rear left axle 11 is rotatably mounted on the rear of the left swing beam 9 . In use, the outer end of the left output shaft 2 can drive the front left wheel shaft 10 and the rear left wheel shaft 11 to rotate, the outer end of the front left wheel shaft 10 is connected with the front left wheel 21 for transmission, and the outer end of the rear left wheel shaft 11 is driven with the rear left wheel 22 In connection, the front left wheel shaft 10 and the rear left wheel shaft 11 are made of steel.
[0024] As a further improvement of the present invention, the above-mentioned right swing beam 6 and the left swing beam 9 are arched hollow beams or triangular hollow beams with high middle height and low front and rear ends respectively. The two sides are respectively provided with maintenance observation ports, and each maintenance observation port is provided with a cover plate 5 respectively. Each cover plate 5 is respectively fixed with bolts. The front left wheel axle 10 and the rear left wheel axle 11 are installed in the cavity of the left swing beam 9 Inside, the front right axle 7 and the rear right axle 8 are installed in the cavity of the right swing beam 6 . By opening the cover 5, the chain drive or belt drive or gear drive system inside the right swing beam 6 and the left swing beam 9 can be repaired. The above-mentioned unique structural design can further ensure the long service life of related components, making the off-road performance highly stable and reliable.
[0025]As a further improvement of the present invention, the left section of the above-mentioned drive axle housing 4 includes a left outer sleeve 12, the inner end of the left outer sleeve 12 is fixedly connected with the left end of the middle section of the drive axle housing 4, and the outer side wall of the outer end of the left outer sleeve 12 is connected. There is an annular left boss 24 on it, the left inner sleeve 13 is rotatably inserted in the left outer sleeve 12, the outer end of the left inner sleeve 13 is provided with a left flange 18, and the left flange 18 faces outward. The end face is attached to the inward side wall of the left swing beam 9 , the left pressure cover 14 is sleeved on the outer side wall of the left outer sleeve 12 , and the outward end face of the left pressure cover 14 is respectively connected with the left boss 24 and the left flange 18 facing inward. The end faces are attached to each other, and the left press cover 14 is fixed on the inward side wall of the left swing beam 9 with a plurality of bolts passing through the left flange 18; in order to overcome the obstacle, the front end of the left swing beam 9 needs to swing up or down. During the movement, the left swing beam 9 will swing around the axis of the left output shaft 2, and the left swing beam 9 will swing together with the left flange 18, the left inner sleeve 13 and the left gland 14. . The above-mentioned unique structural design can further ensure the long service life of related components and make the off-road performance more stable and reliable.
[0026] The right section of the drive axle housing 4 includes a right outer sleeve 15, the inner end of the right outer sleeve 15 is fixedly connected to the right end of the middle section of the drive axle housing 4, and the outer side wall of the outer end of the right outer sleeve 15 has an annular right boss 25. , the right outer sleeve 15 is rotatably inserted with the right inner sleeve 16, the outer end of the right inner sleeve 16 is provided with a right flange 23, the outer end face of the right flange 23 and the right swing beam 6 facing inward The side walls are attached to each other, and the outer side wall of the right outer sleeve 15 is sleeved with a right gland 17. The outward end faces of the right gland 17 are respectively attached to the inward end faces of the right boss 25 and the right flange 23. The right gland 17 It is fixed to the inward side wall of the right swing beam 6 by means of a plurality of bolts passing through the right flange 23 . In order to get over the obstacle, when the front end of the right swing beam 6 needs to swing up or down, the right swing beam 6 will swing with the axis of the right output shaft 3 as the center, and the left swing beam 9 will carry the right swing motion. The flange plate 23, the right inner sleeve 16 and the right gland 17 perform a swinging motion together. The above-mentioned unique structural design can further ensure the long service life of related components, making the off-road performance highly stable and reliable.
[0027] As a further improvement of the present invention, a bearing is provided between the left output shaft 2 and the inner wall of the left inner sleeve 13 , and a bearing is provided between the right output shaft 3 and the inner wall of the right inner sleeve 16 . The above-mentioned unique structural design can further ensure the long service life of related components, making the off-road performance highly stable and reliable.
[0028] As a further improvement of the present invention, the outer end of the above-mentioned left output shaft 2 is mounted on the outer side wall of the left swing beam 9 through a bearing, and the outer end of the right output shaft 3 is mounted on the outer side wall of the right swing beam 6 through a bearing. superior. The above-mentioned unique structural design can further ensure the long service life of related components, making the off-road performance highly stable and reliable.
[0029] As a further improvement of the present invention, the outer end of the above-mentioned front right wheel axle 7 is connected to the front right wheel 19 for transmission, the outer end of the rear right wheel axle 8 is connected to the rear right wheel 20 for transmission; The outer end of the rear left wheel shaft 11 is connected to the rear left wheel 22 for transmission; the above-mentioned unique structural design can further ensure the long service life of the related components, and make the off-road performance highly stable and reliable.
[0030] As a further improvement of the present invention, the hub 34 of the front right wheel 19 is sleeved on the front right hollow shaft 26 through a bearing, the front right hollow shaft 26 is arranged along the left and right horizontal directions, and the inner end of the front right hollow shaft 26 is connected to the right swing beam 6 The side wall located on the outer side is fixedly connected, the front right axle 7 passes through the front right hollow axle 26 from the front right hollow axle 26 in the axial direction, and the outer end of the front right axle 7 is connected to the hub 34 of the front right wheel 19 through the front right connecting plate 27 Connected; the above-mentioned unique structural design can further ensure the long service life of related components, making the off-road performance highly stable and reliable.
[0031] The hub 35 of the rear right wheel 20 is sleeved on the rear right hollow shaft 28 through a bearing, the rear right hollow shaft 28 is arranged along the left and right horizontal directions, and the inner end of the rear right hollow shaft 28 is fixedly connected to the side wall of the right swing beam 6 on the outer side, The rear right wheel shaft 8 passes through the rear right hollow shaft 28 from the rear right hollow shaft 28 in the axial direction, and the outer end of the rear right wheel shaft 8 is connected to the hub 35 of the rear right wheel 20 through the rear right connecting plate 29; the above-mentioned unique structural design can be It further ensures the long service life of related components and makes the off-road performance highly stable and reliable.
[0032] The hub 36 of the front left wheel 21 is sleeved on the front left hollow shaft 30 through a bearing, the front left hollow shaft 30 is arranged along the left and right horizontal directions, and the inner end of the front left hollow shaft 30 is fixedly connected with the side wall of the left swing beam 9 on the outside. The left wheel shaft 10 passes through the front left hollow shaft 30 from the front left hollow shaft 30 in the axial direction, and the outer end of the front left wheel shaft 10 is connected with the hub 36 of the front left wheel 21 through the front left connecting plate 31; the above-mentioned unique structural design can further ensure that The long service life of related components makes the off-road performance highly stable and reliable.
[0033] The hub 37 of the rear left wheel 22 is sleeved on the rear left hollow shaft 32 through a bearing, the rear left hollow shaft 32 is arranged along the left and right horizontal directions, and the inner end of the rear left hollow shaft 32 is fixedly connected to the outer side wall of the left swing beam 9, and the rear left hollow shaft 32 is fixedly connected. The left wheel shaft 11 axially passes through the rear left hollow shaft 32 from the rear left hollow shaft 32 . The above-mentioned unique structural design can further ensure the long service life of related components, making the off-road performance highly stable and reliable.
[0034] In the four-wheel drive axle for an obstacle-crossing vehicle of the present invention, the right end of the drive axle housing 4 is rotatably connected to the middle of the right swing beam 6 , and the left end of the drive axle housing 4 is rotatable with the middle of the left swing beam 9 . When encountering obstacles, the front and rear ends of the left swing beam 9 and the right swing beam 6 can be lifted or dropped to get over the obstacles that would block the movement of the wheels, so that the obstacle-crossing vehicle can have the The strong obstacle-surmounting ability ensures the normal operation of the vehicle on rough roads, and its unique structural design ensures long service life of related components and stable and reliable off-road performance. Therefore, the four-wheel drive axle for an obstacle-crossing vehicle of the present invention can greatly improve the passing ability and obstacle-surmounting ability of the vehicle on the rough road, so that the vehicle can cross higher obstacles when running on the rough road, and The obstacle-crossing performance is stable and reliable.
[0035] The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. On the premise of not departing from the design spirit of the present invention, various modifications made by ordinary engineers in the field to the technical solutions of the present invention and improvements, all should fall within the protection scope determined by the claims of the present invention.
