CN207661101U - A kind of rear end housing of 260 magnesium alloy transmission case - Google Patents

Abstract

A kind of rear end housing of 260 magnesium alloy transmission case, belongs to new-energy automobile accessories field, including bottom wall, front side wall and rear wall；Bottom wall is equipped with the first transmission axis hole and second driving shaft hole；First transmission axis hole is equipped with multilayer ring-type concave to rear direction, and second driving shaft hole is blind hole, and front side wall is big small circular combination shape；Its making material is to be equipped with to generate successively in magnesium alloy materials outer surface of matrix to have Micro-Arc Oxidized Ceramic Coating, magnesium aluminum compounds diffusion layer, colloidal sol film layer, electrophoretic deposition layer, decorative layer；Advantage is the connection strengthened between each structure, and has concentrated the tight ness rating of each structure, can reduce the thickness and material utilization amount of shell；It is equipped with heat radiating slot on side wall, makes shell lightweight；And it is adapted to the internal component and external component of transmission case；Multilayer resist is arranged in magnesium alloy outer surface, matrix is arranged inside and outside different protective films, saves material and effective protection, improves the performance and service life of transmission case.

Description

A kind of rear end housing of 260 magnesium alloy transmission case

Technical field

The utility model is related to new-energy automobile accessories field, especially a kind of 260 transmission cases manufactured using magnesium alloy Rear end housing.

Background technology

With the protrusion of energy shortage and problem of environmental pollution, it is most ideal, most that new-energy automobile becomes substitution fuel-engined vehicle Promising green traffic tool.With the rise of new-energy automobile, relevant issues are increasingly valued by people.Vehicle Weight be the key that development new energy vehicle, lightweight increasingly becomes vehicle and develops improved trend.It is light-weighted main One of means are to substitute traditional material using advanced light material.Using magnesium alloy light-weight than used aluminium alloy 30%, and And the characteristics of by the intrinsic vibration damping of magnesium alloy, noise reduction and rapid Homogeneouslly-radiating, so that automobile engine overall performance is carried significantly It is high.

Magnesium alloy only has the 64% of the 23% of steel, aluminium as current most light structural metallic materials, proportion.With proportion Small, the advantages that specific strength is high, specific stiffness is high, machining and die-casting process performance are good.It is applied on new-energy automobile component With vibration and noise reducing, electromagnetic shielding, shock resistance, high speed heat dissipation, the comfort of vehicle driving is improved, and makes product that there is energy saving drop The advantages that consumption, low emission, low cost, recoverable.

Vehicle transmission tank shell is for supporting and contain various driving parts, such as the automobile of gear, axis, bearing is matched Part enables each transmission parts to keep normal movement relation and kinematic accuracy, can realize various movements with lubricant storage The lubrication of part；It is also used for safeguard protection and sealing simultaneously, keeps the part in babinet free from the influence of the external environment, and protect machine The safety of device operating personnel, and vibration isolation, heat-insulated and deadening can be played.Existing mechanism housing be all made of steel or Aluminium makes, and vibration and noise reducing is all undesirable, can not meet the requirement of new-energy automobile comprehensively.And magnesium alloy materials is used to make Automobile transmission case can substantially reduce vibrations, reduce noise, drop low-temperature-rise, effectively improve using effect and the service life of transmission case.

Utility model content

In practical applications, different vehicles needs the transmission case for being equipped with different torques, and current transmission case is according to automobile Power requirement difference has the different brackets such as 180,230,260,280,330,380 from low to high, and different grades of transmission case is not only Only it is torque difference, also needs the configured in one piece according to different capacity automobile to adjust accordingly, especially with magnesium alloy After material, due to the configuration of each parts in new-energy automobile, in conjunction with magnesium alloy lightweight, heat dissipation, shock-absorbing, magnetic cup and shock resistance With the characteristics of anti-surrender ability and the requirement of shelter of magnesium alloy materials, need the concrete structure to each position of mechanism housing to carry out Corresponding adjustment, to improve the performance and service life of transmission case.

Technical problem to be solved in the utility model is the rear end housing using magnesium alloy materials manufacture 260 transmission case of automobile Body adapts to the cooperation of new-energy automobile each component and transmission mechanism using corresponding space structure and material structure, while The characteristics of adapting to magnesium alloy materials, to improve the performance and service life of transmission case.

In order to solve the above technical problems, technical solution used by the utility model is a kind of 260 magnesium alloy transmission case End housing afterwards includes the shape and structure and material structure of rear end housing, it is characterised in that the shape and structure includes bottom wall, front side Wall and rear wall；The bottom wall is equipped with the first transmission axis hole and second driving shaft hole；First transmission axis hole is to rear direction Equipped with multilayer ring-type concave；The second driving shaft hole is blind hole, and inner wall is equipped with the second ring-type concave to rear direction, the The inner wall lower end of two ring-type concaves is equipped with bottom surface, becomes second driving shaft hole bottom surface, and second driving shaft hole is made to become blind hole.

The front side wall is directly born from the edge of bottom wall, is become around the big of the first transmission axis hole and second driving shaft hole Small circular combination shape, the end face of front side wall are equipped with several heat radiating slots and attachment hole, in the outer side wall surface of front side wall Equipped with positioning tab.

The trailing flank of the rear wall, that is, bottom wall, in back wall surface, the periphery of the first transmission axis hole is convex equipped with multilayer ring-type Platform；Ring week reinforcing rib is directly born from the circumferential edges of bottom wall, ring week reinforcing rib outside, which is equipped with, installs concave station in several ring weeks；It is described It is connected with several the first radial reinforcing ribs between on multilayer annular boss and ring week reinforcing rib；It carries on the back second driving shaft hole bottom surface Side surface is equipped with several second radial reinforcing ribs；It is respectively provided with one on the outside of first transmission axis hole and second driving shaft hole Attaching column boss.

The material structure refers to having differential of the arc oxygen in the generation of magnesium alloy materials outer surface of matrix using magnesium alloy materials as matrix Change ceramic film, Micro-Arc Oxidized Ceramic Coating appearance is covered with electrophoretic deposition layer；It is given birth to simultaneously in magnesium alloy materials base inner surface It is covered with electrophoretic deposition layer at having Micro-Arc Oxidized Ceramic Coating, Micro-Arc Oxidized Ceramic Coating appearance.

Further, the material structure refers to being given birth in magnesium alloy materials outer surface of matrix using magnesium alloy materials as matrix At there is Micro-Arc Oxidized Ceramic Coating, it is coated with magnesium aluminum compounds diffusion layer in Micro-Arc Oxidized Ceramic Coating appearance, in magnesium aluminum compounds Diffusion layer outer surface be coated with colloidal sol film layer, be covered with electrophoretic deposition layer in colloidal sol film layer appearance, electrophoretic deposition layer appearance also It is coated with decorative layer；There is Micro-Arc Oxidized Ceramic Coating in the generation of magnesium alloy materials base inner surface simultaneously, in arc differential oxide ceramic Film layer appearance is coated with magnesium aluminum compounds diffusion layer, and electrophoretic deposition layer is covered in magnesium aluminum compounds diffusion layer appearance.

The utility model has the beneficial effects that strengthening the connection in rear end housing between each structure, can reduce in this way The thickness of shell, it is possible to reduce material utilization amount；It is equipped with heat radiating slot on side wall, further makes shell lightweight；And it is adapted to biography The internal component and external component of dynamic case；Multilayer resist is arranged in magnesium alloy outer surface, it is different according to the condition inside and outside matrix Different protective films is set, can save material, and matrix can be made to be effectively protected, overall effect can improve biography The performance and service life of dynamic case.

Description of the drawings

Fig. 1 is the front side wall structural schematic diagram in the utility model.

Fig. 2 is the rear wall structure schematic diagram in the utility model.

Fig. 3 is the material structure schematic diagram of the utility model.

In figure：1. bottom wall, 2. front side walls, 3. rear walls, 4. first transmission axis holes, 5. second driving shaft holes, 6. multilayers are cyclic annular Concave station, 7. second ring-type concaves, 8. second driving shaft hole bottom surfaces, 9. heat radiating slots, 10. attachment holes, 11. positioning tabs, more than 12. Layer annular boss, 13. ring week reinforcing rib, 14. ring weeks installation concave station, 15. first radial reinforcing ribs, 16. second driving shaft holes Bottom surface back surface, 17. second radial reinforcing ribs, 18. attaching column boss, 30. magnesium alloy materials matrixes, 31. differential arc oxidations Ceramic film, 32. magnesium aluminum compounds diffusion layers, 33. colloidal sol film layers, 34. electrophoretic deposition layers, 35. decorative layers.

Specific implementation mode

With reference to embodiment, the utility model is described in further detail.

Embodiment 1.

As shown, making a kind of rear end housing of 260 magnesium alloy transmission case, include the shape and structure and material of rear end housing Structure is expected, wherein the shape and structure includes bottom wall 1, front side wall 2 and rear wall 3；The bottom wall 1 is equipped with the first transmission axis hole 4 With second driving shaft hole 5；First transmission axis hole 4 is equipped with multilayer ring-type concave 6 to rear direction；The second driving shaft hole 5 be blind hole, and inner wall is equipped with the second ring-type concave 7 to rear direction, and the inner wall lower end of the second ring-type concave 7 is equipped with bottom surface, As second driving shaft hole bottom surface 8, second driving shaft hole is made to become blind hole.

The front side wall 2 is directly born from the edge of bottom wall 1, is become around the first transmission axis hole 4 and second driving shaft hole 5 Big small circular combination shape, the end face of front side wall 2 is equipped with several heat radiating slots 9 and attachment hole 10, the outside of front side wall 2 Wall surface is equipped with positioning tab 11.

The rear wall 3 is the trailing flank of bottom wall, and on the surface of rear wall 3, the periphery of the first transmission axis hole 4 is equipped with multilayer loop Shape boss 12；Directly born ring week reinforcing rib 13 from the circumferential edges of bottom wall, ring week reinforcing rib 13 outside be equipped with several ring Zhou An Fill concave station 14；Several the first radial reinforcing ribs 15 are connected between the multilayer annular boss 12 and ring week reinforcing rib 13； Second driving shaft hole bottom surface back surface 16 is equipped with several second radial reinforcing ribs 17；First transmission axis hole 4 and second The outside of transmission axis hole 5 is respectively provided with an attaching column boss 18.

The material structure refers to using magnesium alloy materials as matrix, and in the outer surface of magnesium alloy materials matrix 30, generation has micro- Arc oxide ceramic film layer 31 is covered with electrophoretic deposition layer 34 in the appearance of Micro-Arc Oxidized Ceramic Coating 31；Simultaneously in magnesium alloy material The inner surface generation of material matrix 30 has Micro-Arc Oxidized Ceramic Coating 31, and electrophoresis is covered in the appearance of Micro-Arc Oxidized Ceramic Coating 31 Sedimentary 34.

Embodiment 2.

In embodiment 1 on the basis of shape and structure, the material structure is made using magnesium alloy materials as matrix, in magnesium The outer surface of alloy material matrix 30, which generates, Micro-Arc Oxidized Ceramic Coating 31, is plated in the outer surface of Micro-Arc Oxidized Ceramic Coating 31 There is magnesium aluminum compounds diffusion layer 32, colloidal sol film layer 33 is coated in the outer surface of magnesium aluminum compounds diffusion layer 32, in colloidal sol film layer 33 appearance is covered with electrophoretic deposition layer 34, and decorative layer 35 is also coated in the appearance of electrophoretic deposition layer 34；Simultaneously in magnesium alloy The inner surface generation of material matrix 30 has Micro-Arc Oxidized Ceramic Coating 31, and magnesium is coated in the outer surface of Micro-Arc Oxidized Ceramic Coating 31 Aluminium compound diffusion layer 32 is covered with electrophoretic deposition layer 34 in the outer surface of magnesium aluminum compounds diffusion layer 32.

Claims (2)

1. a kind of rear end housing of 260 magnesium alloy transmission case, includes the shape and structure and material structure of rear end housing, feature exists In the shape and structure include bottom wall, front side wall and rear wall；The bottom wall is equipped with the first transmission axis hole and second driving shaft hole； First transmission axis hole is equipped with multilayer ring-type concave to rear direction；The second driving shaft hole is blind hole, and inner wall is backward Side direction is equipped with the second ring-type concave, and the inner wall lower end of the second ring-type concave is equipped with bottom surface, becomes second driving shaft hole bottom surface, Second driving shaft hole is set to become blind hole；

The front side wall is directly born from the edge of bottom wall, becomes the big roundlet around the first transmission axis hole and second driving shaft hole The end face of shape combination shape, front side wall is equipped with several heat radiating slots and attachment hole, and the outer side wall surface of front side wall is equipped with Positioning tab；

The trailing flank of the rear wall, that is, bottom wall, in back wall surface, the periphery of the first transmission axis hole is equipped with multilayer annular boss；From The circumferential edges of bottom wall have directly born ring week reinforcing rib, and ring week reinforcing rib outside, which is equipped with, installs concave station in several ring weeks；The multilayer It is connected with several the first radial reinforcing ribs between annular boss and ring week reinforcing rib；Second driving shaft hole bottom surface back surface It is equipped with several second radial reinforcing ribs；An attaching column is respectively provided on the outside of first transmission axis hole and second driving shaft hole Boss；

The material structure refers to having differential arc oxidation pottery in the generation of magnesium alloy materials outer surface of matrix using magnesium alloy materials as matrix Porcelain film layer, Micro-Arc Oxidized Ceramic Coating appearance are covered with electrophoretic deposition layer；Have simultaneously in the generation of magnesium alloy materials base inner surface Micro-Arc Oxidized Ceramic Coating, Micro-Arc Oxidized Ceramic Coating appearance are covered with electrophoretic deposition layer.

2. the rear end housing of 260 magnesium alloy transmission case according to claim 1, it is characterised in that the material structure refers to Using magnesium alloy materials as matrix, there is Micro-Arc Oxidized Ceramic Coating in the generation of magnesium alloy materials outer surface of matrix, make pottery in differential arc oxidation Porcelain film layer appearance is coated with magnesium aluminum compounds diffusion layer, colloidal sol film layer is coated in magnesium aluminum compounds diffusion layer outer surface, in colloidal sol Film layer appearance is covered with electrophoretic deposition layer, and decorative layer is also coated in electrophoretic deposition layer appearance；Simultaneously in magnesium alloy materials matrix Inner surface generation has Micro-Arc Oxidized Ceramic Coating, magnesium aluminum compounds diffusion layer is coated in Micro-Arc Oxidized Ceramic Coating appearance, in magnesium Aluminium compound diffusion layer appearance is covered with electrophoretic deposition layer.