Symmetrical front and rear axles

Abstract

The utility model provides a symmetrical front axle and a symmetrical rear axle, which belong to the technical field of front axles and rear axles and comprise a shell, a speed reducing assembly and a driving assembly, wherein the speed reduction assembly comprises a transfer case, a driving gear, a mounting frame, a differential case cover, a front axle driven gear, a planetary gear, a front axle driving gear, a half axle gear, a shifting fork, a rack, a bolt, a transmission shaft, a connecting shaft sliding sleeve and a spline sleeve. When the rotating direction of an engine is changed, the design of the front axle and the rear axle does not need to be changed, a frame does not need to be changed at all, the front axle and the rear axle are installed only by rotating the front axle and the rear axle by 180 degrees, the rotating direction of the driven gear changes along with the change of the installation direction of the driven gear of the spiral bevel gear, and the driven gear is arranged at the right end and the left end of the driving gear from the input end of the driving gear. The rotating directions are opposite, the adaptability is particularly high, the production cost is reduced, the engine can adopt different rotating directions, the whole vehicle is more convenient to install, the left output and the right output can be the same in length, and the management cost and the assembly error are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to front and rear axle technical field, concretely relates to a symmetrical front and rear axle. BACKGROUND

[0002] Front and rear axles, also known as front and rear shafts in the automotive field, are important components of vehicles. They each bear different functions and roles, and are crucial to the overall performance and stability of vehicles.

[0003] The existing sand vehicle front and rear axles cannot meet the requirement of engine forward and reverse rotation, and the change of engine rotation direction may cause changes of the frame and front and rear axles, increasing product series and production cost. The present application can adapt to the change of engine rotation direction without changing the design of the frame and front and rear axles, thereby reducing the production cost of manufacturers. SUMMARY

[0004] The utility model aims at providing a symmetrical front and rear axle, aiming at solving the problems raised in the background art.

[0005] A symmetrical front and rear axle comprises,

[0006] a shell;

[0007] a reduction assembly provided at the inner wall of the shell, wherein the reduction assembly comprises a transfer case, a drive gear, a mounting bracket, a differential cover, a front axle driven gear, a planetary gear, a front axle driving gear, a half shaft gear, a shift fork, a rack, a latch, a transmission shaft, a connecting shaft sliding sleeve and a spline sleeve, the transfer case is fixedly arranged at one side of the outer wall of the shell, the drive gear is fixedly arranged at the output end of the transfer case, the differential cover and the mounting bracket are matched with each other, the front axle driven gear is fixedly arranged at the outer wall of the differential cover, the front axle driving gear and the front axle driven gear are in meshing transmission connection, the planetary gear is rotatably embedded at the inner wall of the differential cover, the half shaft gear is rotatably embedded at both sides of the inner wall of the differential cover, the half shaft gear and the planetary gear are matched with each other, the connecting shaft sliding sleeve is slidingly sleeved at one end of the outer wall of the half shaft gear, one end of the shift fork is sleeved at the slotted outer wall of the connecting shaft sliding sleeve, the other end of the shift fork is inserted into the inner wall of the rack through the latch, the rack and the drive gear are in meshing transmission connection, the spline sleeve is embedded in the inner wall of the connecting shaft sliding sleeve, and the mounting bracket is internally threadedly connected with a mounting bolt, and one end of the mounting bolt is threadedly connected with the inner wall of the differential cover.

[0008] Further, the outer wall of the transfer case is electrically connected with a plug.

[0009] Further, the outer wall of the mounting frame is sleeved with a third bearing, and the outer wall of the third bearing is sleeved with a front axle housing cover, the inner wall of the front axle housing cover is open and threadedly connected with a fixing bolt, and one end of the fixing bolt is threadedly connected with the opening of the inner wall of the shell.

[0010] Further, the outer wall of the differential housing cover is sleeved with a first bearing, the differential housing cover is matched with the continuous axle sleeve, the spline sleeve is sleeved on the outer wall of one end of the half shaft gear, and the outer wall of the spline sleeve is sleeved with a second bearing.

[0011] Further, the outer wall of the front axle driving gear is fixedly provided with a transmission shaft at the center of one side, the outer wall of the transmission shaft is sleeved with a tapered roller bearing, the outer wall of the tapered roller bearing is sleeved with a bearing bush, and the tapered roller bearing is matched with the shell.

[0012] Further, the outer wall of the transmission shaft is sleeved with a small fork, the inner wall of the small fork is rotatably embedded with a cross shaft, and the outer wall of the cross shaft is rotatably sleeved with a mounting joint.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] Through the reduction gear assembly, the front and rear axle of the sand beach vehicle is an important power output component of the sand beach vehicle, when the rotation direction of the engine is changed, the front and rear axle does not need to be changed in design, the frame does not need to be changed in any way, and only needs to be installed by 180 degrees, the installation direction of the driven gear of the spiral bevel gear is changed, the rotation direction of the driven gear is changed, and when viewed from the input end of the driving gear, the rotation directions of the driven gears at the right end and the left end of the driving gear are opposite, the adaptability is particularly strong, the production cost is reduced, the engine can adopt different rotation directions, the installation of the whole vehicle is more convenient, the left and right outputs can be the same length, and the management cost and assembly errors are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0016] Figure 1 It is the perspective view of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is the perspective view of the mounting frame of the utility model;

[0019] Figure 4 It is the perspective view of the tapered roller bearing of the utility model;

[0020] Figure 5The utility model discloses a three -dimensional view of spline sleeve.

[0021] In the figure: 1, shell; 2, front axle cover; 3, transfer; 4, fixed bolt; 5, small fork; 6, mounting section; 7, mounting frame; 8, differential housing cover; 9, planetary gear; 10, front axle driving gear; 11, half shaft gear; 12, first bearing; 13, second bearing; 14, shift fork; 15, rack; 16, bolt; 17, transmission shaft; 18, cross shaft; 19, tapered roller bearing; 20, connecting shaft sliding sleeve; 21, spline sleeve; 301, plug; 302, driving gear; 501, bearing shell; 701, third bearing; 702, mounting bolt; 801, front axle driven gear. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model.

[0023] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please refer to Figures 1-5 The technical scheme provided by the embodiment is as follows:

[0026] A symmetrical front and rear axle comprises,

[0027] Shell 1;

[0028] The deceleration assembly is arranged at the inner wall of the shell 1, wherein: the deceleration assembly comprises a transfer case 3, a driving gear 302, a mounting frame 7, a differential cover 8, a front axle driven gear 801, a planetary gear 9, a front axle driving gear 10, a half axle gear 11, a shift fork 14, a rack 15, a pin 16, a transmission shaft 17, a connecting shaft sliding sleeve 20 and a spline sleeve 21, the transfer case 3 is fixedly arranged at one side of the outer wall of the shell 1, the driving gear 302 is fixedly arranged at the output end of the transfer case 3, the differential cover 8 and the mounting frame 7 are matched with each other, the front axle driven gear 801 is fixedly arranged at the outer wall of the differential cover 8, the front axle driving gear 10 and the front axle driven gear 801 are in meshing transmission connection, the planetary gear 9 is rotatably embedded at the inner wall of the differential cover 8, the half axle gear 11 is rotatably embedded at the inner wall of the differential cover 8, the half axle gear 11 and the planetary gear 9 are matched with each other, the connecting shaft sliding sleeve 20 is slidably sleeved at one end of the outer wall of the half axle gear 11, one end of the shift fork 14 is sleeved at the slotted outer wall of the connecting shaft sliding sleeve 20, the other end of the shift fork 14 is inserted into the inner wall of the rack 15 through the pin 16, the rack 15 and the driving gear 302 are in meshing transmission connection, the spline sleeve 21 is embedded at the inner wall of the connecting shaft sliding sleeve 20, the mounting frame 7 is screw-connected with a mounting bolt 702 at the inner wall, and one end of the mounting bolt 702 is screw-connected with the inner wall of the differential cover 8.

[0029] In the embodiment of the utility model, through the deceleration assembly, the front and rear axle of the sand beach car is an important power output component of the sand beach car, when the engine changes the rotation direction, the front and rear axle does not need to change the design, the frame does not need to change, only needs to install the front and rear rotation 180 DEG, the driven gear installation direction of the spiral bevel gear changes, the driven gear rotation direction changes, from the input end of the driving gear, if the driven gear is at the right end and at the left end of the driving gear, the rotation directions are opposite, the adaptability is particularly strong, reduces the production cost, can adapt to the different rotation directions of the engine, the installation of the whole vehicle is more convenient, the left and right outputs can be same long, reduces the management cost and assembly error.

[0030] The engine output power is transmitted to the front axle driving gear 10 through the front axle gearbox universal joint, and then to the front axle driven gear 801; the differential assembly is rigidly connected with the front axle driven gear 801 as a whole, and the power is transmitted to the wheels through the left and right half axle gear 11 on the output end, the front axle has three states, no power output, two-wheel drive, four-wheel drive (with differential), no differential, when the connecting shaft sliding sleeve 20 moves to the left and is connected with the front left half axle gear 11 through the spline, the power output is realized, and the differential rotation of the left and right wheels is realized; when the connecting shaft sliding sleeve 20 moves to the left and is connected with the differential housing 1 through the spline, the no-differential rotation of the left and right wheels is realized, the movement of the connecting shaft sliding sleeve 20 is realized through the power on gear of the transfer case 3, the movement of the rack 15, and the pushing of the connecting shaft sliding sleeve 20 by the shift fork 14, there are two control switches on the whole vehicle, two-wheel drive and differential, the engine output power is transmitted to the rear axle driving gear through the rear disc brake mounting seat, and then to the rear axle driven gear; the differential assembly is rigidly connected with the rear axle driven gear as a whole, and the power is transmitted to the wheels through the left and right half axle gear 11 on the output end, the rear axle power output has two states, one is the differential rotation of the left and right wheels through the planetary gear 9 and the half axle gear 11; the other is the no-differential rotation of the left and right wheels after the connecting shaft sliding sleeve 20 is combined with the left half axle gear 11, the movement of the connecting shaft sliding sleeve 20 is realized through the electromagnetic valve pushing the shift fork 14 to rotate and drive the connecting shaft sliding sleeve 20 to move, there is one control switch on the whole vehicle, no differential, the technical scheme is as follows: first, the parameters of the driving gear and the driven gear (helical bevel gear) are determined according to the vehicle power parameters, then the parameters of the planetary gear 9 and the half axle gear 11 are determined, the planetary gear 9, the half axle gear 11 and the differential housing are designed according to the gear parameters, then the driven gear, the driving gear and the connecting shaft sliding sleeve 20 are designed according to the differential housing, and the left and right output ends are designed to be symmetrical with the input shaft center according to the vehicle assembly requirements, and the box body and the box cover are designed.

[0031] Specifically, the outer wall of the transfer case 3 is electrically connected with a plug 301.

[0032] In the specific embodiment of the present application, the plug 301 can assist the wire in controlling the transfer case 3.

[0033] Specifically, the outer wall of the mounting bracket 7 is sleeved with a third bearing 701, and the outer wall of the third bearing 701 is sleeved with a front axle box cover 2, the inner wall of the front axle box cover 2 is screw connected with a fixing bolt 4, and one end of the fixing bolt 4 is screw connected with the inner wall opening of the housing 1.

[0034] In the specific embodiment of the present application, one end of the fixing bolt 4 is screw connected with the inner wall opening of the housing 1, which can ensure the stability and sealing performance of the installation.

[0035] Specifically, the outer wall of the differential housing cover 8 is sleeved with the first bearing 12, the differential housing cover 8 is matched with the connecting shaft sleeve 20, the spline sleeve 21 is sleeved at the outer wall of one end of the half shaft gear 11, and the outer wall of the spline sleeve 21 is sleeved with the second bearing 13.

[0036] In the embodiment of the utility model, the outer wall of the spline sleeve 21 is sleeved with the second bearing 13, so that the friction can be stably reduced.

[0037] Specifically, the outer wall of the front axle driving gear 10 is fixedly provided with the transmission shaft 17 at the center of one side, the outer wall of the transmission shaft 17 is sleeved with the tapered roller bearing 19, the outer wall of the tapered roller bearing 19 is sleeved with the bearing bush 501, and the tapered roller bearing 19 is matched with the outer shell 1.

[0038] In the embodiment of the utility model, the tapered roller bearing 19 is matched with the outer shell 1, so that the convenience of installation can be ensured.

[0039] Specifically, the outer wall of the transmission shaft 17 is sleeved with the small fork 5, the inner wall of the small fork 5 is rotatably embedded with the cross shaft 18, and the outer wall of the cross shaft 18 is rotatably sleeved with the mounting joint 6.

[0040] In the embodiment of the utility model, the outer wall of the cross shaft 18 is rotatably sleeved with the mounting joint 6, so that the stability of transmission can be ensured.

[0041] Working principle:

[0042] The engine output power is transmitted to the front axle driving gear 10 through the front axle gearbox universal joint, and then to the front axle driven gear 801; the differential assembly is rigidly connected with the front axle driven gear 801 as a whole, and the power is transmitted to the wheels through the left and right half axle gear 11, the front axle has three states, no power output, two-wheel drive, four-wheel drive (with differential), no differential, when the connecting shaft sleeve 20 moves to the left and is connected with the front left half axle gear 11 through the spline, the power output is realized, and the differential rotation of the left and right wheels is realized; when the connecting shaft sleeve 20 moves to the left and is connected with the differential housing 1 through the spline, the no-differential rotation of the left and right wheels is realized, the movement of the connecting shaft sleeve 20 is realized by the movement of the rack 15 driven by the power on gear of the transfer case 3, and then the connecting shaft sleeve 20 is pushed by the shift fork 14, there are two control switches on the whole vehicle, two-wheel drive and differential, the engine output power is transmitted to the rear axle driving gear through the rear disc brake mounting seat, and then to the rear axle driven gear; the differential assembly is rigidly connected with the rear axle driven gear as a whole, and the power is transmitted to the wheels through the left and right half axle gear 11, the rear axle power output has two states, one is the differential rotation of the left and right wheels realized through the planetary gear 9 and the half axle gear 11; the other is the no-differential rotation of the left and right wheels realized after the connecting shaft sleeve 20 is combined with the left half axle gear 11, the movement of the connecting shaft sleeve 20 is realized by the movement of the connecting shaft sleeve 20 driven by the shift fork 14 driven by the electromagnetic valve, there is one control switch on the whole vehicle, no differential, the technical scheme is as follows: first, the parameters of the driving gear and the driven gear (screw bevel gear) are determined according to the vehicle power parameters, then the parameters of the planetary gear 9 and the half axle gear 11 are determined, the planetary gear 9, the half axle gear 11 and the differential housing are designed according to the gear parameters, then the driven gear, the driving gear and the connecting shaft sleeve 20 are designed according to the differential housing, and the left and right output ends are designed to be symmetrical with the input shaft center according to the vehicle assembly requirements.

[0043] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A symmetrical front-rear axle, characterized in that, The utility model relates to a differential mechanism, including, The shell (1); The deceleration subassembly is located at the inner wall of shell (1), wherein: the deceleration subassembly includes transfer case (3), drive gear (302), mounting bracket (7), differential housing cover (8), front axle driven gear (801), planetary gear (9), front axle driving gear (10), axle shaft gear (11), shift fork (14), rack (15), bolt (16), transmission shaft (17), connecting shaft sliding sleeve (20) and spline sleeve (21), transfer case (3) is fixedly arranged at the outer wall of shell (1) one side, drive gear (302) is fixedly arranged at the output end outer wall of transfer case (3), differential housing cover (8) and mounting bracket (7) are matched with each other, front axle driven gear (801) is fixedly arranged at the outer wall of differential housing cover (8), front axle driving gear (10) and front axle driven gear (801) are meshed transmission connection, planetary gear (9) is rotatably embedded in the inner wall of differential housing cover (8), axle shaft gear (11) is rotatably embedded in the inner wall both sides of differential housing cover (8), axle shaft gear (11) and planetary gear (9) are matched with each other, connecting shaft sliding sleeve (20) is slidably sleeved on the one end outer wall of axle shaft gear (11), one end of shift fork (14) is sleeved on the outer wall slot of connecting shaft sliding sleeve (20), the other end of shift fork (14) is inserted into the inner wall of rack (15) through bolt (16), rack (15) and drive gear (302) are meshed transmission connection, spline sleeve (21) is embedded in the inner wall of connecting shaft sliding sleeve (20), the inner wall of mounting bracket (7) is threadedly connected with mounting bolt (702), and one end of mounting bolt (702) is threadedly connected to the inner wall of differential housing cover (8).

2. The symmetrical front-rear axle according to claim 1, characterized in that, The outer wall of transfer case (3) is electrically connected with plug (301).

3. The symmetrical front-rear axle according to claim 2, wherein The outer wall of mounting bracket (7) is sleeved with third bearing (701), and the outer wall of third bearing (701) is sleeved with front axle housing cover (2), the inner wall opening of front axle housing cover (2) is threadedly connected with fixing bolt (4), and one end of fixing bolt (4) is threadedly connected to the inner wall opening of shell (1).

4. The symmetrical front-rear axle according to claim 3, wherein The outer wall of differential housing cover (8) is sleeved with first bearing (12), the differential housing cover (8) and connecting shaft sliding sleeve (20) are matched with each other, the spline sleeve (21) is sleeved on the one end outer wall of axle shaft gear (11), and the outer wall of spline sleeve (21) is sleeved with second bearing (13).

5. The symmetrical front-rear axle according to claim 4, characterized in that, The outer wall one side center of front axle driving gear (10) is fixedly provided with transmission shaft (17), the outer wall of transmission shaft (17) is sleeved with tapered roller bearing (19), the outer wall of tapered roller bearing (19) is sleeved with bearing bush (501), and tapered roller bearing (19) and shell (1) are matched with each other.

6. The symmetrical front-rear axle according to claim 5, wherein One end of transmission shaft (17) is sleeved with small fork (5), and the inner wall of small fork (5) is rotatably embedded with cross shaft (18), the outer wall of cross shaft (18) is rotatably sleeved with mounting section (6).

Images