Novel transmission structure of barha racing car

Abstract

The utility model discloses a novel transmission structure of a barha racing car, which belongs to the technical field of racing car transmission structures and comprises a speed reducer shell, a plurality of bearings are fixedly mounted in the speed reducer shell, and an input shaft, an intermediate shaft and an output shaft are fixedly mounted on inner rings of the bearings respectively. A first-stage pinion is fixedly installed outside the input shaft, a first-stage large gear and a second-stage pinion are fixedly installed outside the middle shaft, the first-stage pinion and the first-stage large gear are driven by the input shaft, the middle shaft is driven by the first-stage large gear, and therefore the second-stage large gear is driven by the second-stage pinion. The second-stage large gear drives the output shaft, the output shaft drives the inner ball cage, the speed reducer of a second-stage speed reduction structure is formed, the middle shaft is arranged, arrangement of other transmission components is reduced, the shell of the speed reducer is made of aluminum alloy, and therefore the overall weight of the barha racing car is reduced, and the requirement for light weight of the transmission structure of the barha racing car is met.

Description

Technical Field

[0001] The utility model relates to the technical field of racing car transmission structures, in particular to a new transmission structure of a Baja racing car. Background Art

[0002] BajaSAE China (BSC) is a competition for off-road vehicle design, manufacturing and testing participated by teams of students from colleges and vocational schools majoring in automobiles and related majors. This event is another new platform for cultivating skilled talents launched by the China Society of Automotive Engineers after the successful hosting of the "Formula Student China (FSC)". This is a new means of technical education and engineering practice education, which combines technicality and fun. It has become the most important non-educational social public platform and non-profit social welfare undertaking for countries to discover and cultivate skilled talents in the automotive industry.

[0003] There are many bends and climbs on the Baja racing track. The existing Baja racing transmission structure has many structural parts, and the reducer housing is mostly made of cast iron or steel plate housing. The material strength is excessive, which increases the overall weight of the Baja racing car and fails to meet the lightweight requirements of the transmission structure. Therefore, a new transmission structure of the Baja racing car is proposed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, one purpose of the utility model is to propose a new transmission structure of a Baja racing car. The new transmission structure of the Baja racing car can utilize the setting of an intermediate shaft, reduce the setting of other transmission components, reduce the overall weight of the Baja racing car, and achieve the lightweight demand of the Baja racing car transmission structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new transmission structure of a Baja racing car, comprising a reducer housing, a plurality of bearings are fixedly installed inside the reducer housing, an input shaft, an intermediate shaft and an output shaft are fixedly installed on the inner rings of the plurality of bearings respectively, a primary pinion is fixedly installed on the outside of the input shaft, a primary gear and a secondary pinion are fixedly installed on the outside of the intermediate shaft, a secondary gear is fixedly installed on the outside of the output shaft, the primary pinion is meshedly connected with the primary gear, the secondary pinion is meshedly connected with the secondary gear, two inner ball cages are fixedly installed at both ends of the output shaft respectively, a driven wheel is fixedly installed on one end of the input shaft, and a driving mechanism for driving the input shaft is arranged on the outside of the reducer housing.

[0007] Preferably, the driving mechanism comprises a bracket, the bracket is located at one side of the reducer housing, an engine is fixedly mounted on the bracket, and a driving wheel is fixedly mounted on the end of the output shaft of the engine.

[0008] Preferably, four lifting ears are fixedly mounted on the bottom of the reducer housing.

[0009] Preferably, the intermediate shaft is arranged between the input shaft and the output shaft.

[0010] Preferably, the reducer housing is made of aluminum alloy.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model arranges an input shaft to drive a primary pinion and a primary large gear, the primary large gear drives an intermediate shaft so that the secondary pinion drives the secondary large gear, the secondary large gear drives the output shaft, and the output shaft drives the inner ball cage to form a reducer with a secondary reduction structure. By utilizing the arrangement of the intermediate shaft, the arrangement of other transmission components is reduced, and by setting the material of the reducer housing to aluminum alloy, the overall weight of the Baja racing car is reduced, thereby achieving the lightweight demand for the transmission structure of the Baja racing car. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a novel transmission structure of a Baja racing car of the present utility model;

[0014] Figure 2 It is a structural schematic diagram of a bracket in a novel transmission structure of a Baja racing car of the present utility model;

[0015] Figure 3 It is a structural schematic diagram of the intermediate shaft in the novel transmission structure of the Baja racing car of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the structure of the secondary large gear in the novel transmission structure of the Baja racing car.

[0017] In the figure: 1. reducer housing; 2. bracket; 3. engine; 4. driving wheel; 5. driven wheel; 6. inner ball cage; 7. bearing; 8. lifting lug; 9. input shaft; 10. intermediate shaft; 11. output shaft; 12. first-stage pinion; 13. first-stage gear; 14. second-stage pinion; 15. second-stage gear. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 The embodiment of the utility model provides a new transmission structure of a Baja racing car, including: a reducer housing 1, a plurality of bearings 7 are fixedly installed inside the reducer housing 1, an input shaft 9, an intermediate shaft 10 and an output shaft 11 are fixedly installed on the inner rings of the plurality of bearings 7, a primary pinion 12 is fixedly installed outside the input shaft 9, a primary large gear 13 and a secondary pinion 14 are fixedly installed outside the intermediate shaft 10, a secondary large gear 15 is fixedly installed outside the output shaft 11, the primary pinion 12 is meshedly connected with the primary large gear 13, the secondary pinion 14 is meshedly connected with the secondary large gear 15, two inner ball cages 6 are fixedly installed at both ends of the output shaft 11, a driven wheel 5 is fixedly installed at one end of the input shaft 9, and a driving mechanism for driving the input shaft 9 is arranged outside the reducer housing 1.

[0020] The driving mechanism comprises a bracket 2 , which is located at one side of the reducer housing 1 , on which an engine 3 is fixedly mounted, and on the end of the output shaft of the engine 3 a driving wheel 4 is fixedly mounted.

[0021] When in use, the reducer housing 1, the bracket 2 and the engine 3 are installed on the frame of the Baja racing car, and the driving wheel 4 and the driven wheel 5 are connected by a transmission belt, so that the engine 3 can drive the input shaft 9 to rotate, forming a transmission structure.

[0022] The input shaft 9 drives the primary pinion 12 and the primary gear 13, the primary gear 13 drives the intermediate shaft 10 so that the secondary pinion 14 drives the secondary gear 15, the secondary gear 15 drives the output shaft 11, the output shaft 11 drives the inner ball cage 6, and the reducer is formed. The inner ball cage 6 transmits the power of the engine 3 from the reducer to the two rear wheels of the Baja racing car.

[0023] In order to facilitate the installation of the reducer housing 1 , four lifting ears 8 are fixedly installed on the bottom of the reducer housing 1 .

[0024] It should also be noted that the first-stage large gear 13 and the second-stage small gear 14 rotate coaxially and in the same direction.

[0025] According to the above technical solution, the working steps of this solution are summarized and sorted out: when in use, the reducer housing 1, the bracket 2, and the engine 3 are installed on the frame of the Baja racing car, and the driving wheel 4 and the driven wheel 5 are connected by a transmission belt, so that the engine 3 can drive the input shaft 9 to rotate, forming a transmission structure, the input shaft 9 drives the first-level pinion 12 and the first-level large gear 13, the first-level large gear 13 drives the intermediate shaft 10 so that the second-level pinion 14 drives the second-level large gear 15, the second-level large gear 15 drives the output shaft 11, and the output shaft 11 drives the inner ball cage 6 to form a reducer. The inner ball cage 6 transmits the power of the engine 3 from the reducer to the two rear wheels of the Baja racing car, completing the rear-wheel drive.

[0026] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new transmission structure for a Baja racing car, comprising a reducer housing (1), characterized in that: A plurality of bearings (7) are fixedly mounted inside the reducer housing (1), and an input shaft (9), an intermediate shaft (10) and an output shaft (11) are fixedly mounted on the inner rings of the plurality of bearings (7), a primary pinion (12) is fixedly mounted on the outside of the input shaft (9), a primary gear (13) and a secondary pinion (14) are fixedly mounted on the outside of the intermediate shaft (10), a secondary gear (15) is fixedly mounted on the outside of the output shaft (11), the primary pinion (12) is meshingly connected with the primary gear (13), and the secondary pinion (14) is meshingly connected with the secondary gear (15), two inner ball cages (6) are fixedly mounted on both ends of the output shaft (11), a driven wheel (5) is fixedly mounted on one end of the input shaft (9), and a driving mechanism for driving the input shaft (9) is arranged on the outside of the reducer housing (1).

2. A new transmission structure of a Baja racing car according to claim 1, characterized in that: The driving mechanism comprises a bracket (2), the bracket (2) being located on one side of the reducer housing (1), an engine (3) being fixedly mounted on the bracket (2), and a driving wheel (4) being fixedly mounted on the end of an output shaft of the engine (3).

3. The novel transmission structure of a Baja racing car according to claim 1 is characterized in that: Four lifting ears (8) are fixedly mounted on the bottom of the reducer housing (1).

4. The novel transmission structure of a Baja racing car according to claim 1 is characterized in that: The intermediate shaft (10) is arranged between the input shaft (9) and the output shaft (11).

5. The novel transmission structure of a Baja racing car according to claim 1 is characterized in that: The reducer housing (1) is made of 7075 aluminum alloy.

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