Sectional type combined logistics appliance for rear axle auxiliary frame assembly

Abstract

The utility model discloses a sectional type combined logistics appliance for a rear axle auxiliary frame assembly in the technical field of packaging boxes, and aims to solve the technical problems that in the prior art, an automobile rear axle auxiliary frame packaging box is too large in size, high in manufacturing difficulty and low in packaging space utilization rate, and a brake disc is prone to damage due to radial pressure after a brake is installed. The logistics appliance comprises an appliance body, and the appliance body comprises a lower appliance body and an upper appliance body which are sequentially distributed from bottom to top; the top face of the lower appliance body is concaved inwards to form a first cavity for containing the end of a rear axle auxiliary frame assembly, the top face of the upper appliance body is concaved inwards to form a second cavity for containing the end of the rear axle auxiliary frame assembly, and the first cavity and the second cavity are distributed oppositely in the horizontal direction.

Description

Technical Field

[0001] The utility model relates to a segmented combined logistics device for a rear axle auxiliary frame assembly, belonging to the technical field of packaging boxes. Background Art

[0002] Today, as the division of labor in the automotive industry develops rapidly, auto parts are usually manufactured by auto parts manufacturers scattered in different regions according to design drawings, and then transported to the assembly department of the auto company for unified assembly. In the process of auto parts leaving the factory, storage, transportation, and assembly, scientific selection of auto parts packaging boxes is conducive to minimizing transportation losses, reducing transportation costs, and improving transportation efficiency.

[0003] The rear axle subframe of the automobile is developed based on the modularization and platformization of the automobile chassis. The rear wheel suspension is connected to the main frame through the rear axle subframe, which can reduce the vibration and noise caused by the rolling road surface and ensure driving comfort and stability. The rear axle subframe has strict load-bearing and rigidity requirements. It is usually made of metal materials, has a large weight and lateral area, and has longitudinal protrusions, which leads to the excessive size of the packaging box itself and low packaging space utilization. In this regard, the invention patent application with application number 202211034754X discloses a logistics device for the rear subframe, which can completely accommodate two rear subframes in its horizontally distributed cavity, but at the same time also causes the lateral size of the logistics device to be too large, which increases the difficulty of manufacturing, is not conducive to saving material costs, and the packaging space utilization is limited. In order to improve assembly efficiency, some automobile parts manufacturers also install brakes on the rear axle subframe to form a rear axle subframe assembly with larger weight and size. Not only is the packaging more difficult, but the radial pressure on the brake disc on the brake is easy to cause damage to the disc edge, and the packaging box will be cut during use. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a segmented combined logistics device for a rear axle subframe assembly, so as to solve the technical problems in the prior art that the automobile rear axle subframe packaging box is too large, the manufacturing difficulty is great, the packaging space utilization rate is low, and the brake disc is easily damaged by radial pressure after the brake is installed.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A segmented combined flow tool for a rear axle subframe assembly, comprising a tool body, wherein the tool body comprises a lower tool body and an upper tool body sequentially arranged from bottom to top;

[0007] The top surface of the lower device body is recessed inward to form a first cavity for accommodating the end of the rear axle subframe assembly, and the top surface of the upper device body is recessed inward to form a second cavity for accommodating the end of the rear axle subframe assembly. The first cavity and the second cavity are oppositely distributed in the horizontal direction.

[0008] Preferably, the first cavity or / and the second cavity are provided with an arm support surface and a bridge end support surface or / and a lower plate support surface respectively connected thereto;

[0009] The support surface of the support arm is matched with the bottom surface of the first support arm and / or the second support arm of the rear axle subframe assembly, the bridge end support surface is matched with the bottom surface of the bridge body end of the rear axle subframe assembly and is connected with the side surface of the lower device body or the upper device body, and the lower plate support surface is matched with the bottom surface of the lower plate of the rear axle subframe assembly.

[0010] Preferably, at least any one of the support arm support surface, the bridge end support surface, and the lower plate support surface is provided with a shock absorbing groove formed by an inward depression.

[0011] Preferably, a bearing disc support surface and a brake disc receiving groove corresponding thereto are also provided in the first cavity or / and the second cavity;

[0012] The bearing disc support surface is matched with the radial side surface of the bearing disc of the rear axle sub-frame assembly, and the brake disc receiving groove accommodates the brake disc of the rear axle sub-frame assembly in a radially spaced manner.

[0013] Preferably, the lower device body is provided with a first top surface and a second top surface which are distributed in a stepped manner from low to high, and the first top surface is provided with a first limiting column which is formed by protruding outwards;

[0014] The upper device body is provided with a first bottom surface and a second bottom surface which are distributed in a stepped manner from high to low. The first bottom surface is at the same height as the first top surface and is recessed inward to form a first limiting groove which is matched with the first limiting column.

[0015] Preferably, there are no less than two utensil bodies and they are distributed in the longitudinal direction, the second top surface is at the same height as the top surface of the upper utensil body, and the second bottom surface is at the same height as the bottom surface of the lower utensil body;

[0016] The second top surface or / and the top surface of the upper device body are provided with a second limiting column protruding outwards, and the second bottom surface or / and the bottom surface of the lower device body are recessed inwards to form a second limiting groove matched with the second limiting column.

[0017] Preferably, at least any one of the first bottom surface, the second bottom surface and the bottom surface of the lower device body is provided with a material reduction groove formed by an inward depression, and the first limiting groove and / or the second limiting groove are formed at the inner edge of the material reduction groove.

[0018] Preferably, the lower device body and / or the upper device body are made of EPS material in one piece.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the device body is composed of a lower device body and an upper device body which are sequentially distributed from bottom to top. The top surfaces of the lower device body and the upper device body are both recessed inward to form a cavity for accommodating the end of the rear axle sub-frame assembly. The bottom surface of the rear axle sub-frame assembly faces downward, and its two ends are accommodated and fixed in the cavity, while the middle section of the axle sub-frame assembly is suspended. Due to the segmented design for accommodating the two ends of the rear axle sub-frame assembly, the lateral size of the device body is greatly reduced, which is conducive to reducing materials and reducing manufacturing difficulty, and the occupied volume is small during empty transportation. The first cavity on the top surface of the lower device body and the second cavity on the top surface of the upper device body are oppositely distributed in the horizontal direction, thereby avoiding interference between the lower device body and the rear axle sub-frame assembly in the upper device body, especially avoiding interference between the brake discs of the two rear axle sub-frame assemblies, thereby compressing the lateral size and longitudinal size of the device body and improving the utilization rate of the packaging space. The first cavity and the second cavity are both provided with a brake disc accommodating groove for accommodating the brake disc in a radially spaced manner to prevent the radial edge of the brake disc from being compressed and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top perspective view of the device body in the embodiment of the utility model;

[0021] Figure 2 It is a bottom perspective view of the device body in the embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the combination of the lower apparatus body and the upper apparatus body;

[0023] Figure 4 is a top perspective view of the lower appliance body;

[0024] Figure 5 is a top view of the lower appliance body;

[0025] Figure 6 is a top perspective view of the upper appliance body;

[0026] Figure 7 It is a top view of the upper appliance body;

[0027] Figure 8 is a bottom perspective view of the upper appliance body;

[0028] Fig. 9 It is a top perspective view of the rear axle subframe assembly in an embodiment of the utility model;

[0029] Fig.10 It is a bottom perspective view of the rear axle subframe assembly in the embodiment of the utility model;

[0030] Fig.11 The device body accommodates the rear axle subframe assembly. Figure 1;

[0031] Fig.12 The device body accommodates the rear axle subframe assembly. Figure 2 ;

[0032] Fig.13 The device body accommodates the rear axle subframe assembly. Figure 3 .

[0033] In the figure: 1. lower device body; 11. first top surface; 12. second top surface; 2. upper device body; 21. first bottom surface; 22. second bottom surface; 3. rear axle subframe assembly; 31. bridge body; 32. first support arm; 33. second support arm; 34. lower plate; 35. bearing disc; 351. brake disc; 41. bridge end support surface; 42. support arm support surface; 43. bearing disc support surface; 431. brake disc receiving groove; 44. lower plate support surface; 51. first limit column; 52. second limit column; 53. material reduction groove; 54. shock absorbing groove. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0035] It should be noted that in the description of the present invention, the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "up", "down", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention rather than requiring that the present invention must be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. The terms "front", "rear", "left", "right", "up", and "down" used in the description of the present invention refer to the directions in the accompanying drawings, and the terms "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0036] The utility model provides a segmented combined flow device for a rear axle subframe assembly, which is composed of a plurality of device bodies stacked in the longitudinal direction. Each device body is composed of a lower device body 1 and an upper device body 2 arranged in sequence from bottom to top. Figure 1 and Figure 2 As shown, they are three-dimensional views of the top and bottom surfaces of the apparatus body in the embodiment of the utility model. The top surfaces of the lower apparatus body 1 and the upper apparatus body 2 are both recessed inward to form a cavity for accommodating the ends of the rear axle sub-frame assembly 3. The bottom surface of the rear axle sub-frame assembly 3 faces downward, and its two ends are accommodated and fixed in the cavity, while the middle section of the axle sub-frame assembly 3 is suspended. Since the apparatus body adopts a segmented design for accommodating the two ends of the rear axle sub-frame assembly 3, its lateral size can be greatly reduced, which is conducive to reducing materials and reducing manufacturing difficulty.

[0037] like Fig. 9 , 10 As shown, they are respectively the top and bottom stereograms of the rear axle subframe assembly in the embodiment of the utility model. The rear axle subframe assembly 3 includes a bridge body 31, and both ends of the bridge body 31 are provided with support arms, namely, a first support arm 32 and a second support arm 33. A lower plate 34 is formed between the second support arm 33 and the bridge body 31. A brake is installed at the end of the second support arm 33. The brake includes a brake disc 351 and a bearing disc 35 provided on the end surface of the brake disc 351. The radial edge of the brake disc 351 is relatively thin and is easily damaged under pressure; the radial edge of the bearing disc 35 is relatively thick and has a certain load-bearing strength.

[0038] In this embodiment, the cavity on the top surface of the lower device body 1 is the first cavity, and the cavity on the top surface of the upper device body 2 is the second cavity. The first cavity and the second cavity are oppositely distributed in the horizontal direction, so as to avoid interference between the rear axle sub-frame assembly 3 in the lower device body 1 and the upper device body 2, especially to avoid interference between the brake discs 351 of the two rear axle sub-frame assemblies 3, thereby compressing the lateral and longitudinal dimensions of the device body and improving the utilization rate of the packaging space. Figure 3 The figure shows a schematic diagram of the combination of the lower device body and the upper device body. The lower device body 1 and the upper device body 2 are made of expanded polystyrene (EPS) in one piece. EPS is a light polymer polymer, which is made of polystyrene resin with a foaming agent added, and heated to soften, generating gas to form a rigid closed-cell foam plastic, which has the characteristics of low water absorption, good heat preservation, light weight and high mechanical strength.

[0039] like Figures 4 to 8As shown, they are respectively the top stereogram and the top view of the lower device body and the top stereogram, the top view and the bottom stereogram of the upper device body. The first cavity and the second cavity are both provided with a support arm support surface 42 and a bridge end support surface 41 and a lower plate support surface 44 respectively connected thereto, as well as a bearing disc support surface 43 and a brake disc receiving groove 431 corresponding thereto. The support arm support surface 42 is adapted to the bottom surfaces of the first support arm 32 and the second support arm 33, and plays the role of supporting and limiting the support arm. The bridge end support surface 41 is adapted to the bottom surface of the end of the bridge body 31, and is connected to the side surface of the lower device body 1 or the upper device body 2, and plays the role of supporting and limiting the end of the bridge body 31. The lower plate support surface 44 is adapted to the bottom surface of the lower plate 34, and plays the role of supporting and limiting the lower plate 34. The bearing disc support surface 43 is an arc surface adapted to the radial side surface of the bearing disc 35, and plays the role of supporting and limiting the bearing disc 35. The brake disc groove 431 is adapted to the lower half of the brake disc 351, and plays the role of accommodating the brake disc 351 in the radial direction to avoid damage to the radial edge of the brake disc 351 due to pressure. The lower device body 1 and the upper device body 2 provide balanced support and limit to the rear axle sub-frame assembly 3 through their bridge end support surface 41, support arm support surface 42, bearing disc support surface 43, and lower plate support surface 44, thereby fixing the rear axle sub-frame assembly 3 in the cavity to avoid damage caused by excessive local pressure on the device body.

[0040] As a preferred solution, the support arm support surface 42, the bridge end support surface 41, and the lower plate support surface 44 are all provided with a shock-absorbing groove 54 formed by an inward depression. When the logistics equipment generates longitudinal acceleration due to bumps during storage and transportation, the pressure on the support surface in contact with the rear axle subframe assembly 3 increases instantly, and the pressure support surface has a lateral extension trend. The shock-absorbing groove 54 can provide lateral extension space for the support surface and instantly reduce the longitudinal height of the support surface, thereby providing the necessary longitudinal shock-absorbing space to prevent the rear axle subframe assembly 3 from being damaged due to bumps.

[0041] In this embodiment, the top surface of the lower device body 1 and the bottom surface of the upper device body 2 are both designed in a stepped shape, so as to form a fit and limit between each other. The specific design is as follows: the lower device body 1 is provided with a first top surface 11 and a second top surface 12 which are distributed in a stepped manner from low to high, and the first top surface 11 is provided with a first limit column 51 which is formed by protruding outward; the upper device body 2 is provided with a first bottom surface 21 and a second bottom surface 22 which are distributed in a stepped manner from high to low, and the first bottom surface 21 is the same height as the first top surface 11 and is recessed inward to form a first limit groove which is compatible with the first limit column 51. When the lower device body 1 and the upper device body 2 are combined and fixed, the first bottom surface 21 of the upper device body 2 is pressed onto the first top surface 11 of the lower device body 1, and the first limit column 51 of the first top surface 11 is just embedded in the first limit groove of the first bottom surface 21, thereby realizing the stable combination and limit of the lower device body 1 and the upper device body 2.

[0042] In order to realize the mutual limiting fixation of multiple utensil bodies when stacked in the longitudinal direction, the specific design is as follows: the second top surface 12 is at the same height as the top surface of the upper utensil body 2, and the second bottom surface 22 is at the same height as the bottom surface of the lower utensil body 1; the second top surface 12 and the top surface of the upper utensil body 2 are provided with a second limiting column 52 protruding outward, and the second bottom surface 22 and the bottom surface of the lower utensil body 1 are recessed inward to form a second limiting groove adapted to the second limiting column 52. When multiple utensil bodies are stacked in the longitudinal direction, the second limiting column 52 of the lower utensil body is just embedded in the second limiting groove of the upper utensil body, thereby realizing the limiting fixation between adjacent utensil bodies.

[0043] As a preferred solution, the first bottom surface 21, the second bottom surface 22 of the upper device body 2 and the bottom surface of the lower device body 1 are provided with a plurality of inwardly recessed material reduction grooves 53, which play a role in saving materials and reducing weight. The first limiting groove and the second limiting groove are both formed at the inner edge of the material reduction groove 53, which does not affect the realization of its limiting function, and can also simplify the structural design of the device body and save manufacturing costs.

[0044] The packaging and use method of the logistics device of the utility model comprises the following specific steps:

[0045] Step 1: Place a rear axle subframe assembly 3 with its bottom side facing downward, and its two ends are respectively received in the first cavity of the lower device body 1, and its arm support surface 42 supports the first arm 32 and the second arm 33, the bridge end support surface 41 supports the end of the bridge body 31, the lower plate support surface 44 supports the lower plate 34, and the bearing plate support surface 43 supports the radial side of the bearing plate 35. Fig.11 shown.

[0046] Step 2: Place the upper device body 2 on the lower device body 1 to form a device body, the first bottom surface 21 of the upper device body 2 is pressed on the first top surface 11 of the lower device body 1, and the first limiting column 51 of the first top surface 11 is just embedded in the first limiting groove of the first bottom surface 21, so as to achieve a stable combination and limiting of the lower device body 1 and the upper device body 2. Fig.12 shown.

[0047] Step three: Place another rear axle sub-frame assembly 3 with its bottom side facing downwards, and in the opposite direction to the placement of the rear axle sub-frame assembly 3 in the first cavity, that is, the brake discs 351 of the two rear axle sub-frame assemblies 3 are both located on the outside to avoid interference with each other. The two ends of the rear axle sub-frame assembly 3 are respectively accommodated in the second cavity of the upper device body 2, and its arm support surface 42 supports the first arm 32 and the second arm 33, the bridge end support surface 41 supports the end of the bridge body 31, the lower plate support surface 44 supports the lower plate 34, and the bearing disk support surface 43 supports the radial side of the bearing disk 35. Specifically, Fig.13 shown.

[0048] Step 4: Fig.13 The device bodies accommodating two rear axle sub-frame assemblies 3 are stacked in the longitudinal direction, and the second limiting column 52 of the lower device body is just embedded in the second limiting groove of the upper device body, thereby realizing the limiting fixation between adjacent device bodies.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A segmented combined flow device for a rear axle subframe assembly, characterized in that: The device comprises a device body, wherein the device body comprises a lower device body (1) and an upper device body (2) which are sequentially arranged from bottom to top; The top surface of the lower device body (1) is recessed inwards to form a first cavity for accommodating the end of the rear axle sub-frame assembly (3), and the top surface of the upper device body (2) is recessed inwards to form a second cavity for accommodating the end of the rear axle sub-frame assembly (3), and the first cavity and the second cavity are distributed opposite to each other in the horizontal direction.

2. The logistics device according to claim 1, characterized in that: The first cavity or / and the second cavity are provided with an arm support surface (42) and a bridge end support surface (41) or / and a lower plate support surface (44) respectively connected thereto; The support arm support surface (42) is matched with the bottom surface of the first support arm (32) or / and the second support arm (33) of the rear axle subframe assembly (3); the bridge end support surface (41) is matched with the bottom surface of the end of the bridge body (31) of the rear axle subframe assembly (3) and is connected to the side surface of the lower device body (1) or the upper device body (2); and the lower plate support surface (44) is matched with the bottom surface of the lower plate (34) of the rear axle subframe assembly (3).

3. The logistics device according to claim 2, characterized in that: At least one of the support arm support surface (42), the bridge end support surface (41) and the lower plate support surface (44) is provided with a shock absorbing groove (54) formed by being recessed inwards.

4. The logistics device according to claim 2, characterized in that: A bearing disc support surface (43) and a brake disc receiving groove (431) corresponding thereto are also provided in the first cavity or / and the second cavity; The bearing disc support surface (43) is matched with the radial side surface of the bearing disc (35) of the rear axle sub-frame assembly (3), and the brake disc receiving groove (431) radially accommodates the brake disc (351) of the rear axle sub-frame assembly (3) in a space-free manner.

5. The logistics device according to claim 1, characterized in that: The lower device body (1) is provided with a first top surface (11) and a second top surface (12) which are distributed in a stepped manner from low to high, and the first top surface (11) is provided with a first limiting column (51) which is formed by protruding outwards; The upper device body (2) is provided with a first bottom surface (21) and a second bottom surface (22) which are distributed in a stepped manner from high to low. The first bottom surface (21) is at the same height as the first top surface (11) and is recessed inwardly to form a first limiting groove adapted to the first limiting column (51).

6. The logistics device according to claim 5, characterized in that: The device bodies are at least two and are distributed in the longitudinal direction, the second top surface (12) is at the same height as the top surface of the upper device body (2), and the second bottom surface (22) is at the same height as the bottom surface of the lower device body (1); The second top surface (12) or / and the top surface of the upper device body (2) are provided with a second limiting column (52) protruding outwards, and the second bottom surface (22) or / and the bottom surface of the lower device body (1) are recessed inwards to form a second limiting groove matched with the second limiting column (52).

7. The logistics device according to claim 6, characterized in that: At least one of the first bottom surface (21), the second bottom surface (22) and the bottom surface of the lower device body (1) is provided with a material reduction groove (53) formed inwardly concave, and the first limiting groove and / or the second limiting groove are formed at the inner edge of the material reduction groove (53).

8. The logistics device according to any one of claims 1 to 7, characterized in that: The lower device body (1) and the upper device body (2) are both made of EPS material and are integrally formed.

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