阅读说明：本技术 一种两侧车轮轴单出齿轮箱 (Single gear box with wheel axles on two sides ) 是由 褚红卫 于 2021-01-19 设计创作，主要内容包括：本发明涉及车辆传动技术领域,尤其是一种两侧车轮轴单出齿轮箱。该两侧车轮轴单出齿轮箱,包括箱体A、容纳于该箱体A内的主轴A1、传动轴套A2,固定于所述主轴A1上的伞齿A11与固定于所述传动轴套A2上的伞齿A21啮合,所述主轴A1通过连接轴L1与驱动机构的输出轴连接。在本申请中,新型结构的两侧车轮轴单出齿轮箱结构简单,组装方便,降低了一定的生产成本；通过连接轴使主轴连接输出轴,相对于现有的一般采用链条、链轮配合连接的传输方式,具有更好的连接精度、连接稳定性、连接便捷性,且能够减少噪音；还可以通过调整连接轴L1的长度以实现车轮之间的轴距的调整。(The invention relates to the technical field of vehicle transmission, in particular to a single-output gearbox with wheel shafts on two sides. The two-side wheel axle single-output gearbox comprises a box body A, a main shaft A1 and a driving shaft sleeve A2, wherein the main shaft A1 and the driving shaft sleeve A2 are accommodated in the box body A, a bevel gear A11 fixed on the main shaft A1 is meshed with a bevel gear A21 fixed on the driving shaft sleeve A2, and the main shaft A1 is connected with an output shaft of a driving mechanism through a connecting shaft L1. In the application, the single-output gearbox with the novel structure for the wheel shafts on the two sides is simple in structure and convenient to assemble, and certain production cost is reduced; the main shaft is connected with the output shaft through the connecting shaft, and compared with the existing transmission mode of generally adopting the matching connection of a chain and a chain wheel, the transmission device has better connection precision, connection stability and connection convenience, and can reduce noise; adjustment of the wheel base between the wheels can also be achieved by adjusting the length of the connecting shaft L1.)

1. The two-side wheel shaft single-output gearbox comprises a box body A and is characterized by further comprising a main shaft A1 and a transmission shaft sleeve A2 which are contained in the box body A, wherein a bevel gear A11 fixed on the main shaft A1 is meshed with a bevel gear A21 fixed on the transmission shaft sleeve A2, and the main shaft A1 is connected with an output shaft of a driving mechanism through a connecting shaft L1.

2. The two-sided wheel axle single-output gearbox of claim 1, wherein the outdrive A2 is sleeved outside the wheel axle, the outdrive A2 has a convex rib on the inner surface, and the outer surface of the wheel axle has a groove matched with the convex rib; or the inner surface of the driving shaft sleeve A2 is provided with a groove, and the outer surface of the wheel shaft is provided with a convex strip matched with the groove.

3. The two-sided wheel axle single-output gearbox of claim 1, wherein the connecting shaft L1 is fixed and detachable with the main shaft A1 and the output shaft in circumferential connection respectively.

4. The double-sided wheel axle single-output gearbox according to claim 1, wherein the box body A is provided with a connecting plate for connecting and fixing with a vehicle frame.

5. The double-sided wheel axle single-output gearbox of claim 1, wherein a box cover is connected to the box body A.

6. The double-sided wheel axle single-output gearbox of claim 1, wherein the cross-section of the rib is trapezoidal.

7. The double-side wheel axle single-output gearbox according to claim 1, wherein a bearing seat sleeved outside the main shaft A1 is fixedly connected to the box body A.

8. The double-sided wheel axle single-output gearbox of claim 1, wherein the outdrive A2 is rotatably connected to the housing A, and a first bearing is disposed between the outdrive A2 and the housing A.

9. The two-sided wheel axle single-output gearbox of claim 1, wherein the main axle a1 is provided with shoulders for limiting the axial movement of the bevel a 11.

10. The double-sided wheel axle single-output gearbox according to claim 1, wherein a bearing cover for preventing the first bearing and the second bearing from falling off is connected to the box body A.

Technical Field

The invention relates to the technical field of vehicle transmission, in particular to a single-output gearbox with wheel shafts on two sides.

Background

Gearboxes are used in a wide range of applications, for example in wind power installations, where gearboxes are an important mechanical component. The wind power generator mainly has the function of transmitting the power generated by the wind wheel under the action of wind power to the generator and enabling the generator to obtain corresponding rotating speed. The speed of the wind wheel is usually very low, and the speed of the wind wheel is far less than the speed required by the generator to generate electricity, and the speed is increased by the speed increasing action of a gear pair of the gearbox, so the gearbox is also called as a speed increasing box.

The gear box has the following functions:

1. acceleration and deceleration are commonly referred to as speed change gear boxes.

2. By changing the direction of the transmission, for example, two gear segments can be used to transmit the force perpendicularly to the other axis of rotation.

3. The turning moment is changed. Under the condition of the same power, the faster the gear rotates, the smaller the moment borne by the shaft, and vice versa.

4. The clutch function is as follows: the purpose of separating the engine from the load can be achieved by separating two originally meshed gears. Such as a brake clutch, etc.

5. And distributing power. For example, one engine can be used for driving a plurality of driven shafts through a main shaft of the gear box, so that the function of driving a plurality of loads through one engine is realized.

Please refer to fig. 1, chinese utility model patent with publication number CN2858359 discloses an amphibious all terrain vehicle with middle engine, which comprises a boat-shaped vehicle body (1), an engine (2) and a gearbox (3), wherein the engine (2) is arranged in the middle of the vehicle body, the gearbox (3) is arranged below the engine (2), two ends of an output shaft of the gearbox (3) extend out of the box body from the left and right sides, a duplex sprocket (4) is arranged at two ends of the output shaft of the gearbox (3), and the duplex sprocket (4) transmits power to a wheel shaft of a wheel forward and backward respectively through two chains (5, 6). The utility model discloses a gearbox passes through sprocket chain drive system respectively from the left and right sides and directly transmits power to the wheel of automobile body both sides on, has saved the drive disk assembly of traditional vehicle chassis part, simple structure, light in weight, and easy and simple to handle is nimble, not only can go on shallow marsh, wetland or muddy ground, also can go on jungle, snowfield, mountain region or the Gobi.

Referring to fig. 2, chinese utility model patent No. CN201833870U discloses a four-wheel independent driving device for all-terrain vehicle. The steering mechanism comprises four elastic check rings, wheels, a driving motor, fastening screws, a shock absorber, an upper spherical hinge, a lower swing arm, a lower spherical hinge, two steering rods, a rotating hinge and bolts; the wheel is connected with the driving motor through a spline on an output shaft of the driving motor, the shaft end is provided with an elastic retainer ring, the driving motor is connected with the shock absorber through a fastening screw, the shock absorber is connected with the frame through an upper spherical hinge, one end of the steering rod is fixed on the shell of the driving motor through a bolt, one end of the lower swing arm is fixed with the driving motor through a lower spherical hinge, and the other end of the lower swing arm is connected with the frame through a rotating hinge. The utility model discloses a simple structure realizes that the technical degree of difficulty is low, and the practicality is strong, and the repacking of arranging easily of whole structure and ordinary frame, low in production cost is applicable to all terrain vehicle and uses under complicated road conditions to can realize the original place circle of whole car.

It can be seen that the prior art has complex driving structure, more parts, high assembly precision requirement and complexity, and the duplex chain wheel is adopted to transmit power to the wheel shaft of the wheel respectively forwards and backwards through the two chains, so that the chains are easy to be clamped and broken in practical use.

Disclosure of Invention

The invention aims to provide a single-output gearbox with two side wheel shafts, which has the advantages of simple structure, low production cost, easy control of assembly precision and stable transmission.

In order to achieve the advantages, the single-output gearbox for the wheel shafts of the two sides comprises a box body A, a main shaft A1 and a transmission shaft sleeve A2, wherein the main shaft A1 and the transmission shaft sleeve A2 are accommodated in the box body A, a bevel gear A11 fixed on the main shaft A1 is meshed with a bevel gear A21 fixed on the transmission shaft sleeve A2, and the main shaft A1 is connected with an output shaft of a driving mechanism through a connecting shaft L1.

In one embodiment of the two-side wheel axle single-output gearbox of the invention, the driving shaft sleeve A2 is sleeved outside the wheel axle, the inner surface of the driving shaft sleeve A2 is provided with a convex strip, and the outer surface of the wheel axle is provided with a groove matched with the convex strip; or the inner surface of the driving shaft sleeve A2 is provided with a groove, and the outer surface of the wheel shaft is provided with a convex strip matched with the groove.

In an embodiment of the two-side wheel axle single-output gearbox of the invention, the connecting shaft L1 is respectively fixed and detachable with the main shaft a1 and the output shaft in a circumferential connection mode.

In one embodiment of the two-side wheel axle single-output gearbox of the invention, the box body A is provided with a connecting plate for connecting and fixing with a vehicle frame.

In one embodiment of the two-sided wheel axle single-output gearbox of the present invention, a box cover is connected to the box body a.

In one embodiment of the two-sided wheel axle single-output gearbox of the present invention, the cross-section of the raised strip is trapezoidal.

In an embodiment of the two-side wheel axle single-output gearbox of the invention, the box body A is fixedly connected with a bearing seat sleeved outside the main shaft A1.

In one embodiment of the two-side wheel axle single-output gearbox of the invention, the driving shaft sleeve A2 is rotatably connected with the box body A, and a first bearing is arranged between the driving shaft sleeve A2 and the box body A.

In one embodiment of the two-sided wheel axle single-out gearbox of the present invention, the spindle a1 is provided with a shoulder for limiting the axial movement of the bevel a 11.

In an embodiment of the two-sided wheel axle single-output gearbox of the present invention, a bearing cap for preventing the first bearing and the second bearing from falling off is connected to the casing a.

In the application, the single-output gearbox with the novel structure for the wheel shafts on the two sides is simple in structure and convenient to assemble, and certain production cost is reduced; make the main shaft connect the output shaft through the connecting axle, for the transmission mode that current generally adopted chain, sprocket cooperation to connect, have better connection accuracy, connection stability, connection convenience, and can the noise abatement.

In this application, the both sides axletree of this structure singly goes out the gearbox batch production easily, is fit for the all-terrain vehicle of multiple specification, consequently great improvement production efficiency.

In the present application, the adjustment of the wheel base between the wheels can be achieved by adjusting the length of the connecting shaft L1.

Drawings

FIG. 1 is a schematic structural diagram of an amphibious all-terrain vehicle with a mid-engine in the prior art.

Fig. 2 is a schematic structural diagram of a four-wheel independent driving device of an all-terrain vehicle in the prior art.

Fig. 3 is a schematic structural view of a double-sided wheel axle single-output gearbox according to a first embodiment of the invention.

Fig. 4 is an exploded view of the two-sided wheel axle single out gearbox of fig. 3.

Fig. 5 is a schematic structural view of the main shaft a1 of the double-side wheel axle single-out gearbox of fig. 4.

Fig. 6 is a schematic view of a connecting structure of a driving sleeve a2 and a wheel axle of the single-output gearbox of the two-side wheel axle of fig. 4.

Fig. 7 is a schematic view of another connection structure of the driving sleeve a2 and the wheel axle of the single-output gearbox of the wheel axle of fig. 4.

Fig. 8 is a schematic view of the connection structure of the single-output gearbox and the drive gearbox of the two-side wheel axle of fig. 3.

Fig. 9 is an exploded view of the drive gearbox of fig. 8.

Fig. 10 is an assembly structure diagram of the input shaft, the transmission shaft group and the output shaft group of the drive gear box of fig. 9.

Fig. 11 is an assembly structure diagram of the input shaft, the transmission shaft group and the output shaft group of fig. 10 in another direction.

Fig. 12 is an exploded view of gears C4, C5 of the drive gearbox of fig. 9.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

Referring to fig. 3-5, the two-side wheel axle single-output gearbox of the first embodiment of the present application includes a casing a, a main axle a1 accommodated in the casing a, and a driving axle sleeve a 2. The bevel gear A11 fixed on the main shaft A1 is meshed with the bevel gear A21 fixed on the driving shaft sleeve A2, and the main shaft A1 is connected with an output shaft of the driving mechanism through a connecting shaft L1. The main shaft A1 is provided with a shoulder A12 for limiting axial movement of the bevel gear A11.

Referring to fig. 6-7, the driving axle sleeve a2 is used to be sleeved outside the wheel axle 1, and the wheel axle 1 is connected to a fixed wheel. The inner surface of the driving sleeve A2 is provided with a convex strip A21, and the outer surface of the wheel axle 1 is provided with a groove 11 matched with the convex strip A21. Or the inner surface of the driving sleeve A2 is provided with a groove A23, and the outer surface of the wheel axle 1 is provided with a convex strip 12 matched with the groove A23.

Referring to fig. 4, a connecting sleeve a171 and a baffle a172 are sleeved outside a connecting end of the main shaft A1 connected with the connecting shaft L1, and the connecting sleeve a171 is used for circumferentially connecting the main shaft A1 with the connecting shaft L1. The baffle A172 is used for preventing the connecting shaft L1 from being connected with the main shaft A1 to be in an over-position. The connecting sleeve A171 and the connecting shaft L1 are provided with inner splines and outer splines which are matched and connected with each other. Preferably, the blocking piece a172 is a metal elastic piece.

In the present application, the wheel base adjustment between the wheels can be achieved by adjusting the length of the connecting shaft L1.

In other embodiments of the present application, two ends of the connecting shaft L1 are hinged with couplers, so that the main shaft a1 and the connecting shaft L1 can be conveniently connected and detached.

The box body A is provided with a connecting plate A13 for connecting and fixing with a vehicle frame and a box cover A14 for covering the opening of the box body A. The box A can effectually prevent that the dust from getting into after connecting case lid A14, avoids the bevel gear latch. The box body A and the box cover A14 are fixedly connected through bolts. The box body A is fixedly connected with a bearing seat A15 sleeved outside the main shaft A1. The driving shaft sleeve A2 is rotatably connected with the box body A, and a first bearing 201 is arranged between the driving shaft sleeve A2 and the box body A. A bearing cover a16 for preventing the first bearing 201 from falling off is connected to the case a.

Preferably, the bearing seat a15 has dual bearings.

Preferably, the box body A and the connecting plate A13 are integrally formed.

Preferably, the connecting shaft L1 is respectively fixed with the main shaft a1 and the output shaft in a detachable and circumferential manner.

Preferably, the cross section of each of the ribs a21 and 12 is trapezoidal.

Referring to fig. 8-12, in the second embodiment of the present application, the single-output gearbox with two side wheel axles is applied to an all-terrain vehicle, and is coupled to a driving gearbox in the all-terrain vehicle, where the driving gearbox includes a box S, an input shaft 200 installed in the box S, a transmission shaft set, and an output shaft set.

Referring to fig. 9-12, the transmission shaft set includes a first transmission shaft 210 and a second transmission shaft 211, the output shaft set includes a first output shaft 220 and a second output shaft 221, the input shaft 200, the first transmission shaft 210 and the second transmission shaft 211 are disposed in parallel, the central axes of the first output shaft 220 and the second output shaft 221 are located on the same straight line, and the central axes of the first output shaft 220 and the second output shaft 221 are perpendicular to the central axis of the second transmission shaft 211 respectively.

The transmission shaft set further includes a gear C1 fixed on the input shaft 200, a gear C2 fixed on the first transmission shaft 210, a gear C3 fixed on the first transmission shaft 210, a gear C4 fixed on the second transmission shaft 211, a gear C5 fixed on the second transmission shaft 211, a gear C6 fixed on the first output shaft 220, and a gear C7 fixed on the second output shaft 221. The gear C1 is meshed with the gear C2, the gear C3 is meshed with the gear C4, and the gear C5 is meshed with the gear C6 and the gear C7 respectively.

Preferably, the box body S is formed by splicing a bottom plate and four side plates, and the front side plate and the rear side plate are respectively and fixedly provided with a bearing seat S92 sleeved outside the first output shaft 220 and the second output shaft 221. The gear C1 and the gear C2 are both spur gears. The gear C3 and the gear C4 are both helical gears. The gear C5, the gear C6 and the gear C7 are all bevel gears.

The left side plate and the right side plate of the box body S are respectively provided with a first shaft hole S7 for mounting the input shaft 200, the first transmission shaft 210 and the second transmission shaft 211, and the front side plate and the rear side plate are respectively provided with a second shaft hole S8 for mounting the first output shaft 220 and the second output shaft 221. Bearings S91 are provided between the input shaft 200, the first transmission shaft 210, the second transmission shaft 211, and the first shaft hole S7.

The bearing housing S92 is a bearing housing having two bearings, and the bearing housing S92 is provided with a fitting portion S921 for insertion into the second shaft hole S8, with one bearing located between the output shaft 200 and the second shaft hole S8.

Furthermore, a driving gear box is connected with two wheel shafts on two sides and a single gear box. The main shaft A1 is connected to the output shaft of the drive gear box through a connecting shaft L1.

In other embodiments of the present application, the single-output gearbox of the two-side wheel axle can be further coupled with the driving gearbox through the double-output gearbox of the middle wheel axle to form an eight-wheel all-terrain vehicle.

In this application, both sides axletree list goes out gearbox simple structure, and the equipment is convenient, has reduced certain manufacturing cost. Make the main shaft connect the output shaft through the connecting axle, for the transmission mode that current generally adopted chain, sprocket cooperation to connect, have better connection accuracy, connection stability, connection convenience, and can the noise abatement.

In the application, the single-output gearbox of the wheel shafts on the two sides has few parts, low processing difficulty and easy batch production; and is suitable for all-terrain vehicles with various specifications, thereby greatly improving the production efficiency.

In the present application, the direction of attachment of the outdrive a2 is adjusted, i.e., the bevel gear a21 engages with the left or right side of the bevel gear a11 to change the direction of rotation of the outdrive a2, thereby completely adapting to the mounting of the two side wheels of the vehicle without distinguishing the left and right sides.

In this application, make the main shaft connect the output shaft through the connecting axle, conveniently adjust the wheel base between the two-wheeled.

It should be noted that: the single-output gearbox with the wheel axles at the two sides can meet the assembly requirements of all-terrain vehicles with different specifications, but is not limited to be applied to all-terrain vehicles.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.