Integrated transmission reduction box

Abstract

The present invention discloses an integrated transmission reduction box, including a reduction box body, a reduction box output gear, a countershaft double gear, a reduction box input gear and a connecting plate, wherein the countershaft double gear is installed inside the reduction box body, the countershaft double gear is respectively meshed with the reduction box output gear and the reduction box input gear on both sides, the reduction box input gear is provided with an input gear drive hole, the input gear drive hole is provided with an engine output shaft rectangular spline, the engine output shaft rectangular spline is connected to the engine output shaft, and the reduction box output gear is provided with an output gear drive hole. The beneficial effect is that the integrated transmission reduction box of the present invention is fixed together with the engine, the early transmission system structure is simpler, the transmission efficiency is higher, the longitudinal length is shorter, and it is more compact, the transmission system structure is simple, the volume is small, the cost is low, and the assembly and maintenance are convenient.

Description

Technical Field

[0001] The invention relates to the field of transmission technology, in particular to an integrated transmission reduction box. Background Art

[0002] At present, in the known independent suspension all-terrain vehicle transmission system, the engine transmits power to the drive axle through the transmission shaft, and the drive axle then transmits power to the wheels through the half-axle. The existing transmission shaft and drive axle have the disadvantages of complex structure, large size, high cost, complex assembly and maintenance, etc. For rear-engine vehicles, if the transmission system with the above structure is adopted, the vehicle body will be too long, which is not easy to meet the requirements of the vehicle design length. Summary of the invention

[0003] The purpose of the present invention is to provide an integrated transmission reduction box and a transmission system based on the integrated transmission reduction box in order to overcome the problems of complex structure, large size and high cost of the all-terrain vehicle transmission system in the prior art.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] An integrated transmission reduction box comprises a reduction box body, a reduction box output gear, a countershaft double gear, a reduction box input gear and a connecting plate, wherein the countershaft double gear is installed inside the reduction box body, the reduction box output gear and the reduction box input gear are respectively meshed on both sides of the countershaft double gear, an input gear drive hole is provided in the reduction box input gear, an engine output shaft rectangular spline is provided on the input gear drive hole, the engine output shaft rectangular spline is connected to the engine output shaft, an output gear drive hole is provided in the reduction box output gear, a half-shaft inner ball cage spline is provided on the output gear drive hole, and the half-shaft inner ball cage spline connects the left half-shaft and the right half-shaft.

[0006] The transmission system based on the integrated transmission reduction box is mainly composed of the integrated transmission reduction box, an engine installed outside the integrated transmission reduction box, a left half shaft and a right half shaft;

[0007] Furthermore, a connecting plate is installed on the outer side surface of the reduction box body, and the engine is fixedly installed on the connecting plate.

[0008] Furthermore, the output shaft of the engine is connected to the reduction gear input gear having an input gear drive hole, and the reduction gear output gear is connected to the left half shaft and the right half shaft arranged on both sides of the integrated transmission reduction gear through the ball cage spline inside the half shaft.

[0009] Furthermore, wheels are installed at the ends of the left half shaft and the right half shaft.

[0010] Furthermore, bearings and oil seals are installed on the countershaft duplex gear, the reduction gear output gear and the reduction gear input gear.

[0011] In the above structure, the power output by the engine can be directly distributed to the half-axles through the integrated transmission reduction box, and it can obtain the corresponding rotation speed, and the power can be evenly distributed to the half-axles on both sides. It can not only transmit and distribute power, but also has a certain reduction ratio, which can allow the half-axles to obtain greater torque, thereby improving the power of the whole vehicle.

[0012] The beneficial effect is that the integrated transmission reduction box and the engine described in the present invention are fixed together, the early transmission system structure is simpler, the transmission efficiency is higher, and the longitudinal length is shorter, which can achieve the purpose of making the whole vehicle design more compact. Under the premise of ensuring the transmission efficiency, the all-terrain vehicle transmission system has a simple structure, small size, low cost, and easy assembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the outer structure of the integrated transmission reduction box of the present invention;

[0014] Figure 2 is a cross-sectional schematic diagram of the integrated transmission reduction box of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the transmission system based on the integrated transmission reduction box of the present invention.

[0016] The following are the descriptions of the reference numerals:

[0017] 1. Engine; 2. Left half shaft; 3. Integrated transmission reduction box; 4. Right half shaft; 5. Wheel; 6. Reduction box body; 7. Reduction box output gear; 8. Countershaft double gear; 9. Reduction box input gear; 10. Connecting plate. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] like Figure 1-3 As shown, the integrated transmission reduction box includes a reduction box body 6, a reduction box output gear 7, a countershaft double gear 8, a reduction box input gear 9 and a connecting plate 10;

[0022] A countershaft double gear 8 is installed inside the reduction box body 6, and a reduction box output gear 7 and a reduction box input gear 9 are respectively meshed on both sides of the countershaft double gear 8;

[0023] The input gear 9 of the reduction box is provided with an input gear driving hole, and the input gear driving hole is provided with an engine output shaft rectangular spline, and the engine output shaft rectangular spline is connected to the engine output shaft;

[0024] An output gear drive hole is provided in the output gear 7 of the reduction gear box, and a half-shaft inner ball cage spline is provided on the output gear drive hole. The half-shaft inner ball cage spline connects the left half shaft and the right half shaft.

[0025] The transmission system based on the integrated transmission reduction box is mainly composed of an integrated transmission reduction box 3, an engine 1 installed outside the integrated transmission reduction box 3, a left half shaft 2 and a right half shaft 4;

[0026] In this embodiment, a connecting plate 10 is installed on the outer side surface of the reduction gearbox body 6 , and the engine 1 is fixedly installed on the connecting plate 10 .

[0027] In this embodiment, the output shaft of the engine 1 is connected to the reduction box input gear 9;

[0028] The reduction box output gear 7 is connected to the left half shaft 2 and the right half shaft 4 arranged on both sides of the integrated transmission reduction box 3 through the ball cage spline in the half shaft.

[0029] In this embodiment, wheels are mounted at the ends of the left half-shaft 2 and the right half-shaft 4.

[0030] The reduction box body 6 is filled with gear oil with lubrication and heat dissipation functions. The reduction box body 6 is also provided with bolt holes for filling and draining oil. The countershaft double gear 8, the reduction box output gear 7 and the reduction box input gear 9 are also equipped with bearings for supporting the countershaft double gear 8, the reduction box output gear 7 and the reduction box input gear 9. The reduction box output gear 7 and the reduction box input gear 9 are also equipped with oil seals for sealing.

[0031] In the above structure, the engine 1 directly transmits the output power to the integrated transmission reduction box 3. The engine 1 is connected to the reduction box input gear 9 through the spline on the engine output shaft to drive it to rotate. The reduction box input gear 9 rotates through the meshing transmission of the secondary shaft double gear 8 with a deceleration effect, and then transmitted to the reduction box output gear 7. The reduction box output gear 7 transmits the power to the left half shaft 2 and the right half shaft 4 through the ball cage splines in the left half shaft and the right half shaft, thereby driving them to rotate.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Integrated transmission reduction box, characterized by: It includes a reduction box body, a reduction box output gear, a countershaft double gear, a reduction box input gear and a connecting plate, wherein the countershaft double gear is installed inside the reduction box body, the reduction box output gear and the reduction box input gear are respectively meshed on both sides of the countershaft double gear, an input gear driving hole is arranged in the reduction box input gear, an engine output shaft rectangular spline is arranged on the input gear driving hole, the engine output shaft rectangular spline is connected to the engine output shaft, an output gear driving hole is arranged in the reduction box output gear, a half-shaft inner ball cage spline is arranged on the output gear driving hole, and the half-shaft inner ball cage spline connects the left half-shaft and the right half-shaft; A connecting plate is installed on the outer side of the reduction box body, and an engine is fixedly installed on the connecting plate; The output shaft of the engine is connected to the reduction box input gear with an input gear driving hole, and the reduction box output gear is connected to the left and right half shafts arranged on both sides of the integrated transmission reduction box through the ball cage splines in the half shafts.

2. The integrated transmission reduction box according to claim 1, characterized in that: Wheels are installed at the ends of the left half shaft and the right half shaft.

3. The integrated transmission reduction box according to claim 1 is characterized in that: Bearings and oil seals are also installed on the countershaft duplex gear, the reduction box output gear and the reduction box input gear.

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