CN215434367U

CN215434367U - Aluminum alloy tow boat support for trucd mixer

Info

Publication number: CN215434367U
Application number: CN202023258349.5U
Authority: CN
Inventors: 张花蕊; 张虎; 李超男
Original assignee: Beijing Hangda New Material Technology Co ltd; Qingdao Hangda New Material Technology Co ltd; Qingdao Research Institute Of Beihang University
Current assignee: Beijing Hangda New Material Technology Co ltd; Qingdao Hangda New Material Technology Co ltd; Qingdao Research Institute Of Beihang University
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-01-07
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to an aluminum alloy tug bracket for a mixer truck, which is integrally formed and comprises a bottom plate, wherein two supporting parts for supporting a wheel shaft are arranged on the bottom plate at intervals; and weight reduction cavities are arranged on the supporting part and the bottom plate. This kind of aluminum alloy riding wheel supporting structure has good intensity concurrently and good subtracts heavy effect.

Description

Aluminum alloy tow boat support for trucd mixer

Technical Field

The utility model relates to an aluminum alloy automobile part, in particular to an aluminum alloy riding wheel support for a mixer truck.

Background

The riding wheel support is used for supporting the structure of the mixing drum on the concrete mixer, not only provides structural support for the mixing drum, simultaneously matches with the roller path of the mixing drum through the riding wheel arranged on the riding wheel support, realizes the function of rotation of the mixing drum, and is an important structural part.

The cast steel/ductile iron riding wheel bracket used in the market at present is formed by sand casting or welding. The quality of sand casting products is directly influenced by the quality of molding sand, and the sand casting products have the defects of air holes, sand holes, bonded sand and the like and have rough surfaces; the welding forming process has the advantages that the overall performance of the product is different, the welding seam position and the heat affected zone are weak, the hidden danger of fatigue fracture exists after long-term use, the hidden danger of fatigue fracture exists, the welding seam position of the product is a stress concentration area and the risk of failure is increased due to the influence of structural design. The tug bracket structure in the prior art can refer to the concrete mixer riding wheel assembly of Chinese utility model with publication number CN 203650698U.

Along with the development of market lightweight, the lightweight demand of automobile parts is increasing day by day, so need an aluminum alloy riding wheel supporting structure for mixer truck that has good intensity and good weight reduction effect concurrently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an aluminum alloy riding wheel support structure for a mixer truck, which has good strength and good weight reduction effect aiming at the current situation of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the aluminum alloy tug bracket for the mixer truck is integrally formed and comprises a bottom plate, wherein two supporting parts for supporting a wheel shaft are arranged on the bottom plate at intervals, two sides of each supporting part are respectively provided with a fixing part, the middle part of each supporting part is a bearing installation part protruding from the fixing part, and the side surface of the bearing installation part is in transitional connection with the top surface of the fixing part through an inner arc surface; and weight reduction cavities are arranged on the supporting part and the bottom plate.

In order to further reduce weight and have good strength, a main weight reducing cavity is arranged on the upper side of the outer wall surface of each supporting part, and a plurality of auxiliary weight reducing cavities are arranged on the lower side of the main weight reducing cavity at intervals along the transverse direction.

Preferably, the number of the auxiliary weight-reducing cavities is five, and the auxiliary weight-reducing cavities are arranged in an axisymmetric mode.

Further preferably, the auxiliary weight reducing cavity comprises special-shaped cavities which are positioned at two sides and matched with the fixing part structure, and the openings of the special-shaped cavities are quadrilateral; a main triangular cavity with a downward vertex angle positioned in the center; and two auxiliary triangular cavities positioned at two sides of the main triangular cavity.

In order to further reduce weight, two sides of the bearing mounting part are respectively provided with a side weight reducing cavity extending from top to bottom.

In order to reduce weight and have good strength, the middle part of the bottom surface of the bottom plate is provided with four bottom weight reducing cavities, and the four bottom weight reducing cavities are all triangular cavities and are arranged in central symmetry, so that an X-shaped reinforcing rib structure is formed on the bottom surface.

Compared with the prior art, the utility model has the advantages that: the tug bracket is integrally formed by aluminum alloy, so that the product has good surface quality and uniform and stable mechanical property, and the welding position of the prior art is prevented from losing efficacy while the weight is reduced; the fixing part of the utility model is arranged by protruding from the bottom plate, thus strengthening the strength of the fixing part; the supporting part integrates a fixing part and a bearing mounting part, the fixing part is positioned at the bottom of the bearing mounting part, the bottom of the bearing mounting part is further reinforced, and the bearing mounting part and the fixing part have a height difference, so that the weight can be further reduced; in addition, the side surface of the bearing mounting part is in transitional connection with the top surface of the fixing part through an inner arc surface, so that the stress concentration at the position is reduced, and the weight can be further reduced;

in addition, two side ends of the bottom plate extend upwards to form the supporting part, so that casting molding is facilitated, and the connecting strength between the supporting part and the bottom plate is better; moreover, weight reduction cavities are arranged on the supporting part and the bottom plate, so that the weight is further reduced; therefore, the riding wheel bracket has good strength and good weight reduction effect, and can reduce weight by more than 50% compared with the cast steel/ductile iron riding wheel bracket in the prior art.

Drawings

FIG. 1 is a schematic view of a support structure of an idler according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle of the idler support of an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a secondary weight-reducing chamber of an embodiment of the present invention;

fig. 4 is a schematic bottom structure view of the riding wheel support of the embodiment of the utility model.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.

As shown in fig. 1 to 4, the aluminum alloy tug bracket for the mixer truck is integrally formed and comprises a bottom plate 1, two opposite side ends of the bottom plate 1 extend upwards to form supporting parts 2 for supporting a wheel axle, two sides of each supporting part 2 are respectively provided with a fixing part 21, the middle part of each supporting part 2 is a bearing mounting part 22 protruding from the fixing part 21, and the side surface of the bearing mounting part 22 is in transitional connection with the top surface of the fixing part 21 through an inner arc surface 2 a; weight reduction cavities are arranged on the supporting part 2 and the bottom plate 1. The fixing portion 21 of the present embodiment is provided with a bolt fixing hole.

For further weight reduction, a main weight reduction cavity 23 is provided on the upper side of the outer wall surface of each support part 2, and a plurality of sub weight reduction cavities 24 are arranged on the lower side of the main weight reduction cavity 23 at intervals in the lateral direction. Preferably, the secondary lightening cavities 24 are provided in five and are arranged axisymmetrically. Further preferably, the auxiliary weight-reducing cavity 24 comprises special-shaped cavities 241 which are positioned at two sides and matched with the fixing part 21 in structure, and the openings of the special-shaped cavities 241 are quadrilateral; a main triangular cavity 242 with a center apex angle facing downward; and two secondary triangular cavities 243 located on both sides of the primary triangular cavity 242; thereby form vertical strengthening rib between dysmorphism chamber 241 and vice triangle chamber 243, form the inclined strengthening rib between main triangle chamber 242 and vice triangle chamber 243 for this kind of structure has good intensity concurrently and subtracts the heavy effect.

For further weight reduction, both sides of the bearing mounting portion 22 are provided with a side weight-reducing chamber 25 extending from top to bottom, and for further weight reduction, the side weight-reducing chamber 25 of the present embodiment extends below the top end face of the fixing portion.

In order to reduce weight and have good strength, the middle part of the bottom surface of the bottom plate 1 is provided with four bottom weight reducing cavities 11, and the four bottom weight reducing cavities 11 are all triangular cavities and are arranged in central symmetry, so that an X-shaped reinforcing rib structure is formed on the bottom surface.

The riding wheel bracket of the embodiment is formed by casting aluminum alloy, the finished product mass is 9.187kg, compared with the cast steel/ductile iron riding wheel bracket of the prior art, the weight is generally about 20kg, and the weight can be reduced by more than 50%.

The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. The utility model provides an aluminum alloy tow boat support for trucd mixer, tow boat support integrated into one piece, includes bottom plate (1), its characterized in that: two opposite side ends of the bottom plate (1) extend upwards to form two supporting parts (2) for supporting a wheel axle, two sides of each supporting part (2) are respectively provided with a fixing part (21), the middle part of each supporting part (2) is a bearing mounting part (22) protruding from the fixing part (21), and the side surface of the bearing mounting part (22) is in transitional connection with the top surface of the fixing part (21) through an inner arc surface (23); the supporting part (2) and the bottom plate (1) are both provided with weight reduction cavities.

2. The aluminum alloy tug bracket for mixer truck of claim 1, characterized in that: the upper side of the outer wall surface of each supporting part (2) is provided with a main weight reducing cavity (23), and a plurality of auxiliary weight reducing cavities (24) are arranged on the lower side of the main weight reducing cavity (23) at intervals along the transverse direction.

3. The aluminum alloy tug bracket for mixer truck according to claim 2, characterized in that: five auxiliary weight-reducing cavities (24) are arranged and are arranged in an axisymmetric manner.

4. The aluminum alloy tug bracket for mixer truck of claim 3, characterized in that: the auxiliary weight-reducing cavity (24) comprises special-shaped cavities (241) which are positioned on two sides and are structurally matched with the fixing part (21), and the openings of the special-shaped cavities (241) are quadrilateral; a main triangular cavity (242) with a downward vertex angle at the center; and two secondary triangular cavities (243) located on either side of the primary triangular cavity (242); thereby forming vertical reinforcing ribs between the profile cavity (241) and the secondary triangular cavity (243), and forming oblique reinforcing ribs between the primary triangular cavity (242) and the secondary triangular cavity (243).

5. The aluminum alloy tug bracket for mixer truck according to claim 2, characterized in that: and two sides of the bearing mounting part (22) are provided with a side weight reducing cavity (25) extending from top to bottom.

6. The aluminum alloy tug bracket for mixer trucks of any of claims 1-5, characterized in that: four bottom weight reducing cavities (11) are arranged in the middle of the bottom surface of the bottom plate (1), the four bottom weight reducing cavities (11) are all triangular cavities and are arranged in a central symmetry mode, and therefore an X-shaped reinforcing rib structure is formed on the bottom surface.