Shell structure of light-weight heavy truck power suspension cushion

Abstract

The utility model relates to the field of heavy truck power assembly suspension systems, in particular to a shell structure of a light-weight heavy truck power suspension cushion, which comprises a mounting inner cavity which is through along the Y direction, and the mounting inner cavity is defined by a top end shell body, a bottom end shell body and a side wall shell body which is connected with the top end shell body and the bottom end shell body; the top end shell body is provided with a discontinuous shell top plate, so that the shell structure is of a C-shaped open structure; the side wall shell body is provided with an installation position used for being connected with a rubber vulcanization body. Through the design of the shell structure, the top end shell body is provided with the discontinuous shell top plate, the use amount of materials of the shell is effectively reduced, and the light weight requirement of the whole product is met on the premise that the overall performance is not affected.

Description

Technical Field

[0001] The utility model relates to the field of heavy truck power suspension assembly systems, in particular to a shell structure of a lightweight heavy truck power suspension cushion. Background Art

[0002] Most existing heavy trucks use fuel engine systems, and the power suspension cushion assembly is used to connect the powertrain and the frame and play a vibration reduction role. Lightweighting is an important trend in product development.

[0003] After searching, CN202321873735.6 discloses a heavy-duty truck powertrain suspension system field including a vulcanized body and a base for installing the vulcanized body, wherein the vulcanized body includes a core body and rubber main springs arranged on both sides of the core body; the outer wall of the base is a closed-loop structure; along the installation direction of the vulcanized body, the upper and lower end faces of the closed-loop structure are both open structures; the outer wall of the base is provided with a weight-reducing structure and an installation through hole; the inner wall of the base is provided with a positioning groove structure, and the vulcanized body is fixed in the base through the rubber main spring. When installed, the bottom surface of the base fits with the side of the vehicle frame to limit the movement of the vulcanized body and prevent the vulcanized body from falling out. The lightweight heavy-duty truck power suspension cushion of the utility model sets the base into an open structure, which can not only greatly reduce the amount of base material used, so as to achieve the purpose of lightweight; and in combination with the design of the base interior, the core body can be inserted and assembled from the bottom surface, which is easy to assemble and efficient.

[0004] CN201520041873.7 proposes a novel lightweight composite structure engine suspension, in which an inner frame with a triangular cross section is provided in the middle of an outer frame with a trapezoidal cross section, the three sides of the inner frame are respectively parallel to the three sides of the outer frame, cylindrical rubber bodies are respectively provided on both sides between the outer frame and the inner frame, and connecting plates are respectively installed on both sides and the upper part of the outer frame. Through the above arrangement, the utility model effectively limits the deformation of the engine suspension under harsh working conditions, controls the displacement and vibration of the powertrain, and improves the service life of the engine suspension. Both the outer frame and the inner frame adopt sheet metal stamping structure, which can reduce the weight by more than 30% compared with ductile iron material.

[0005] The above-mentioned retrieved patents also mainly made improvements to the outer shell, but the shell generally uses weight-reducing holes and does not achieve the optimal lightweight design.

[0006] Therefore, it is necessary to design a shell structure of a lightweight heavy-duty truck power suspension cushion to improve the comfort and reliability of the entire vehicle. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model discloses a shell structure of a lightweight heavy-duty truck power suspension cushion. Through the design of the shell structure, the top shell body is provided with a non-continuous shell top plate, which effectively reduces the amount of material used in the shell and achieves the lightweight requirements of the entire product without affecting the overall performance.

[0008] The technical means adopted by the utility model to solve the above problems are:

[0009] Disclosed is a shell structure of a lightweight heavy-duty truck power suspension cushion, comprising an installation inner cavity which is through along the Y direction, wherein the installation inner cavity is enclosed by a top shell body, a bottom shell body, and a side wall shell body connecting the top shell body and the bottom shell body; the top shell body is provided with a non-continuous shell top plate, so that the shell structure is a "C"-shaped open structure; the side wall shell body is provided with a mounting position for connecting a rubber vulcanized body.

[0010] The shell structure of the lightweight heavy-duty truck power suspension cushion sets the shell to an open structure, and sets the top shell body to a disconnected type, and sets hollow weight-reducing holes on the edge of the shell. The combination of the above settings can achieve the lightweight requirement to the greatest extent while ensuring strength.

[0011] Furthermore, the top shell body is a symmetrical special-shaped arm with a gradually changing thickness from the center to both sides of the shell, and the side wall of the special-shaped arm is a straight section or a curved section bulging outward. The disconnected design of the non-continuous shell top plate can effectively reduce the material usage of the shell, and then fully analyze the force and load of the product, and make a lightweight design for the part that can be reduced. Combined with the improvement of the core body, the entire product meets the dual use requirements of strength and lightness. The shell can be made of cast steel, ductile iron or cast aluminum, or PA66+glass fiber. It is formed in one piece through casting and serves to connect the engine bracket and the frame respectively.

[0012] Furthermore, the side wall shell body gradually converges from the outside to the inside to form a V-shaped structure at the bottom. The bottom shell body extends inward to form a limiting portion; the top shell body, the side wall shell body and the limiting portion are surrounded by an inverted V-shaped structure, which can provide a space for the deformation of the rubber installed in the installation cavity while being lightweight.

[0013] Furthermore, the bottom shell body has a limiting portion protruding toward the top shell body.

[0014] Furthermore, the limiting portion includes a central connecting portion and an edge transition portion, and the edge transition portion is a curved arm concave toward the outer side of the bottom shell body.

[0015] Furthermore, the central connecting portion includes a planar structure at the top, and a connecting platform 1 is arranged on the planar structure.

[0016] Furthermore, the inner wall of the side wall shell body is a planar structure, and a second connecting platform is symmetrically arranged on the inner wall of the side wall shell body.

[0017] Furthermore, a plurality of weight-reducing holes are arranged inside the limiting part, and the weight-reducing holes are arranged symmetrically along the edge of the limiting part. The weight-reducing holes on the edge of the shell are arranged as hollow weight-reducing holes. This can not only reduce the weight of the shell itself, but also facilitate the insertion of the rubber body into its slot from different directions, thereby facilitating the installation of the vulcanized body.

[0018] Furthermore, a W-shaped pressing plate is provided between the limiting portion and the side wall shell body.

[0019] Furthermore, the press-fit plate includes a connecting plate that fits with the side wall shell body and a protrusion arranged on the connecting plate. The connecting plates on both sides are connected to the middle plate through a transition arc plate, and a mounting portion that cooperates with the limiting portion is arranged between the connecting plates. The press-fit bottom plate is arranged as a protrusion. When subjected to force in the Y direction, the protrusion can decompose the Y-direction force, thereby reducing the Y-direction force acting on the shell, thereby ensuring the comfort and reliability of the entire suspension product.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The shell structure of the lightweight heavy-duty truck power suspension cushion of the utility model is designed so that the top shell body is provided with a non-continuous shell top plate, which effectively reduces the amount of material used in the shell, realizes the lightweight requirement of the entire product without affecting the overall performance, and improves the comfort of product use.

[0022] The shell structure of the lightweight heavy-duty truck power suspension cushion of the utility model can realize the limit protection of the shell and the vulcanized body in the three directions of X / Y / Z, restrict the maximum movement stroke of the rubber itself, thereby effectively protecting the rubber main structure and greatly extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the shell structure of the lightweight heavy-duty truck power suspension cushion described in Example 1.

[0024] Figure 2 This is a schematic structural diagram of the shell structure of the lightweight heavy-duty truck power suspension cushion described in Example 1 in another direction.

[0025] Figure 3 This is a schematic structural diagram of the connecting plate of the shell structure of the lightweight heavy-duty truck power suspension cushion described in Example 1.

[0026] Among them, 13-pressing plate, 132-protruding part, 134-middle plate, 135-connecting plate, 136-installing part, 137-transition arc plate, 23-side wall shell body, 21-installing inner cavity, 22-top shell body, 23-side wall shell body, 24-bottom shell body, 25-installing position, 9-limiting part, 91-center connecting part, 92-edge transition part, 93-weight reduction hole, 94-connecting platform one, 95-connecting platform two. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings. The accompanying drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limiting the present patent; in order to better illustrate the embodiments of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Example 1

[0028] like Figure 1-Figure 3 As shown, the shell structure of the lightweight heavy-duty truck power suspension cushion is made of cast steel, ductile iron or cast aluminum, and can also be made of PA66+glass fiber. Specifically, it includes a through-mounting inner cavity 21 along the Y direction, and the mounting inner cavity 21 is enclosed by a top shell body 22, a bottom shell body 24, and a side wall shell body 23 connecting the top shell body 22 and the bottom shell body 24; the top shell body 22 is provided with a non-continuous shell top plate, so that the shell structure is a "C"-shaped open structure; the side wall shell body 23 is provided with a mounting position 25 for connecting the rubber vulcanized body.

[0029] The shell structure of the lightweight heavy-duty truck power suspension cushion is set as an open structure, and the top shell body is set as a disconnected type, and hollow weight-reducing holes are set on the edge of the shell. The combination of the above settings can achieve the lightweight requirements to the greatest extent while ensuring strength.

[0030] In this embodiment, the discontinuous shell top plate is a shaped arm with a gradually changing thickness from the center to both sides, and the shaped arm is a straight surface section or a curved surface section bulging outward near the inner side. This structure is designed to cooperate with the vibration reduction of the core structure, so that the comfort of the entire product can be guaranteed. The disconnected design of the discontinuous shell top plate can effectively reduce the material consumption of the shell, and then fully analyze the force and load of the product, and make a lightweight design for the part that can be reduced. So that the entire product meets the dual use requirements of strength and lightness.

[0031] The side wall shell body 23 gradually converges from the outside to the inside to the bottom of the V-shaped structure, which is designed to conform to the universal wedge-shaped core structure, making the entire shell structure more universal and more practical. In addition, the V-shaped structure uses less material, which meets the requirements of lightweight.

[0032] The bottom shell body 24 on the opposite side of the open structure has a limited portion 9 protruding toward the top shell body 22, which includes a central connection portion 91 and an edge transition portion 92, and the edge transition portion 92 is a curved arm concave toward the outside of the bottom shell body 24. The central connection portion 91 includes a top plane structure, and a connection platform 1 94 is provided on the plane structure. In order to make the press plate 13 and the shell more stable, the inner wall of the side wall shell body 23 can be set as a plane structure, and at the same time, a connection platform 2 95 is symmetrically provided on the inner wall of the side wall shell body 23. Both the connection platform 1 94 and the connection platform 2 95 are protruding cylindrical structures, and the connection platform 2 95 can also be set only the connection platform 1 94 depending on the situation; setting the connection platform as a cylindrical structure is convenient for processing, and there is no sharp corner, and when subjected to force, stress concentration will not be generated to damage the entire product. This structure can not only effectively carry the rubber vulcanized body installed inside the shell, but also increase the comfort of use of the entire structure, so that the life of the entire structure can be guaranteed.

[0033] In addition, a W-shaped press plate 13 is provided at the position limiting portion 9 and the side wall shell body 23, including a connecting plate 135 fitted with the side wall shell body 23 and a protrusion 132 provided on the connecting plate 135. The connecting plates 135 on both sides are connected to the middle plate 134 through a transition arc plate 137, and a mounting portion 136 matching with the position limiting portion 9 is provided between the connecting plates 135. The mounting portion 136 is a through hole structure engaged with the connecting platform 1 94, and a cylindrical groove (not shown) or a through hole engaged with the connecting platform 2 95 is provided on the side wall shell body 23 near the connecting platform 2 95. In this embodiment, a cylindrical groove is selected to match with the connecting platform 2 95. The press bottom plate is provided as a protrusion, and when subjected to force in the Y direction, the protrusion can decompose the Y direction force, thereby reducing the Y direction force acting on the shell.

[0034] In order to further reduce weight, a plurality of weight-reducing holes are provided on one side of the mounting surface of the shell structure, and a plurality of groups of weight-reducing holes 93 are provided inside the limiting portion 9, and the weight-reducing holes 93 are symmetrically arranged along the edge of the limiting portion 9, so as to achieve the goal of weight reduction to the maximum extent.

[0035] The shell structure of the lightweight heavy-duty truck power suspension cushion effectively reduces the amount of material used in the shell, achieves the lightweight requirements of the entire product without affecting the overall performance, and improves the comfort of product use.

[0036] The above are only embodiments of the utility model, and the utility model is not limited to the fields involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the content of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A shell structure of a lightweight heavy truck power suspension cushion, characterized in that: The invention comprises an installation inner cavity (21) which is through in the Y direction, and the installation inner cavity (21) is enclosed by a top shell body (22), a bottom shell body (24), and a side wall shell body (23) connecting the top shell body (22) and the bottom shell body (24); the top shell body (22) is provided with a discontinuous shell top plate, so that the shell structure is a "C"-shaped open structure; the side wall shell body (23) is provided with an installation position (25) for connecting a rubber vulcanized body.

2. The shell structure of the lightweight heavy truck power suspension cushion according to claim 1 is characterized in that: The top shell body (22) is a symmetrical shaped arm along the center of the shell, with thickness gradually changing from the center to both sides, and the side wall of the shaped arm is a straight surface section or a curved surface section bulging outwards.

3. The shell structure of the lightweight heavy truck power suspension cushion according to claim 1 is characterized in that: The side wall shell body (23) gradually converges from the outside to the inside to form a V-shaped structure at the bottom.

4. The shell structure of the lightweight heavy truck power suspension cushion according to claim 3 is characterized in that: The bottom shell body (24) has a limiting portion (9) protruding in the direction of the top shell body (22).

5. The shell structure of the lightweight heavy truck power suspension cushion according to claim 4 is characterized in that: The limiting portion (9) comprises a central connecting portion (91) and an edge transition portion (92); the edge transition portion (92) is a curved arm that is concave toward the outside of the bottom shell body (24).

6. The shell structure of the lightweight heavy truck power suspension cushion according to claim 5 is characterized in that: The central connecting portion (91) comprises a top planar structure, on which a connecting platform 1 (94) is arranged.

7. The shell structure of the lightweight heavy truck power suspension cushion according to claim 6 is characterized in that: The inner wall of the side wall shell body (23) is a planar structure, and the inner wall of the side wall shell body (23) is symmetrically provided with a second connecting platform (95).

8. The shell structure of the lightweight heavy truck power suspension cushion according to any one of claims 4 to 7, characterized in that: A plurality of groups of weight-reducing holes (93) are arranged inside the limiting portion (9), and the weight-reducing holes (93) are symmetrically arranged along the edge of the limiting portion (9).

9. The shell structure of the lightweight heavy truck power suspension cushion according to claim 8 is characterized in that: A W-shaped pressing plate (13) is provided between the limiting portion (9) and the side wall shell body (23).

10. The shell structure of the lightweight heavy truck power suspension cushion according to claim 9 is characterized in that: The press-fit plate (13) comprises a connecting plate (135) fitted with the side wall shell body (23) and a protruding portion (132) provided on the connecting plate (135); the connecting plates (135) on both sides are connected to the middle plate (134) via a transition arc plate (137); and a mounting portion (136) cooperating with the limiting portion (9) is provided between the connecting plates (135).

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