Suspension lower shell and suspension structure

Abstract

The utility model provides a suspension lower shell and a suspension structure, the suspension lower shell comprises a lower shell main body and a bottom shell, the lower shell main body is used for being connected with a suspension upper shell, the bottom shell is arranged at the bottom of the lower shell main body, the bottom shell and the lower shell main body define a mounting groove with an opening in the top, and the bottom shell is used for being connected with a suspension main spring; the lower shell body is provided with an upper limiting part and a lower limiting part which protrude towards the interior of the mounting groove, the upper limiting part and the lower limiting part are arranged at intervals in the height direction of the lower shell body, the bottom shell is provided with a protruding part protruding outwards in the radial direction of the bottom shell, the bottom shell is rotated, and the protruding part can be clamped between the upper limiting part and the lower limiting part. And the bottom shell is connected with the lower shell main body. According to the suspension lower shell, the upper limiting part, the lower limiting part and the protruding part are matched, so that the bottom shell can be conveniently installed on the lower shell body, the problems of cracking and rusting caused by pressing rivet connection in the prior art can be avoided, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of suspension technology, and in particular to a suspension lower shell. Meanwhile, the utility model also relates to a suspension structure provided with the suspension lower shell. Background Art

[0002] Rubber suspension is a device used for automobile shock absorption, and its core component is the rubber main spring. This suspension structure is relatively simple and low in cost, so it is widely used in various types of automobiles. The working principle of rubber suspension is mainly to use the elastic properties of rubber materials to absorb and buffer the vibration and impact of the engine. When the engine vibrates, the rubber main spring can undergo elastic deformation, thereby reducing the amplitude and frequency of the vibration and achieving the effect of shock absorption.

[0003] The suspension shell structure is a key component in the suspension system. In the suspension system, the suspension shell not only supports and protects the internal components, but also participates in the transmission and absorption of vibration and impact.

[0004] Specifically, the suspension housing is usually designed to be a solid and rigid structure to ensure that it can withstand vibration and impact from the engine or other vibration sources. It is often equipped with elastic elements such as suspension main springs, which work together with the suspension housing to achieve the functions of shock absorption and vibration isolation.

[0005] In the prior art, the lower shell structure of the suspended shell includes a lower shell body and a bottom shell arranged at the bottom. The lower shell body and the bottom shell are connected by a riveting process, which has the risk of cracking due to riveting and the product rusting after riveting. Utility Model Content

[0006] In view of this, the utility model aims to provide a suspended lower shell to facilitate the assembly of the suspended lower shell.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A suspension lower shell, comprising a lower shell body and a bottom shell, wherein the lower shell body is used to be connected to the suspension upper shell, the bottom shell is arranged at the bottom of the lower shell body and is surrounded with the lower shell body to form a mounting groove with a top opening, and the bottom shell is used to be connected to the suspension main spring;

[0009] The lower shell body is provided with an upper limit portion and a lower limit portion protruding into the installation groove, and the upper limit portion and the lower limit portion are spaced apart along the height direction of the lower shell body, and the bottom shell has a protruding portion protruding outward along its own radial direction. When the bottom shell is rotated, the protruding portion can be clamped between the upper limit portion and the lower limit portion to connect the bottom shell and the lower shell body.

[0010] Further, the upper limit portion includes a plurality of upper limit bosses spaced apart along the circumference of the lower shell body, and the lower limit portion includes a plurality of lower limit bosses spaced apart along the circumference of the lower shell body;

[0011] The protruding portions are multiple and are arranged at intervals along the circumference of the bottom shell.

[0012] Furthermore, the upper limit boss and the lower limit boss are alternately arranged along the circumferential direction of the lower shell body.

[0013] Furthermore, projections of the upper limit boss and the lower limit boss in the height direction of the lower shell body do not overlap with each other.

[0014] Furthermore, the bottom shell is formed with a groove with a top opening, and an outer flange is provided at the notch of the groove;

[0015] The protruding portion is arranged on the outer turning edge.

[0016] Furthermore, the protruding length of the lower limit boss is greater than the protruding length of the upper limit boss;

[0017] The outer flange abuts against the top of the lower limit boss.

[0018] Furthermore, the lower shell body is provided with a connecting plate protruding outward in its radial direction, and the connecting plate is used to be connected to the suspended upper shell;

[0019] The connecting plate is provided with a positioning plate extending downward, and the positioning plate is used to position the lower shell body on the vehicle body.

[0020] Furthermore, the lower shell body is formed by cast aluminum; and / or,

[0021] The bottom shell is formed by sheet metal stamping.

[0022] Compared with the prior art, the utility model has the following advantages:

[0023] The suspended lower shell body described in the utility model is provided with an upper limit portion and a lower limit portion which are spaced apart in the height direction on the lower shell body, and a protruding portion is provided on the bottom shell, so that when the bottom shell is rotated, the protruding portion is clamped between the upper limit portion and the lower limit portion, and the bottom shell can be connected to the lower shell body. Compared with the solution of connecting the two by riveting process in the prior art, it is not only convenient to install the bottom shell on the lower shell body, but also helps to avoid the problems of cracking and rusting caused by riveting connection in the prior art, and helps to reduce production costs.

[0024] In addition, the upper limit boss and the lower limit boss have simple structures and are easy to process and form. The provision of multiple protruding parts is conducive to further improving the matching effect between the upper limit boss and the lower limit boss, thereby improving the connection reliability of the bottom shell on the lower shell body. By alternately arranging the upper limit boss and the lower limit boss in the circumferential direction of the lower shell body, it is conducive to the protruding part entering between the upper limit boss and the lower limit boss and being sandwiched between the two. The projections of the upper limit boss and the lower limit boss do not overlap with each other, so that the multiple protruding parts on the bottom shell can be respectively restricted on different upper limit bosses or lower limit bosses, which is conducive to increasing the limiting area of ​​the bottom shell, thereby further improving the connection reliability and stability of the bottom shell on the lower shell body.

[0025] In addition, the arrangement of the groove on the bottom shell can further facilitate the deformation of the suspension main spring. The structure of the outer flange is simple and easy to process and form. The protruding portion is arranged on the outer flange, which is conducive to improving the structural strength of the protruding portion and the bearing capacity of the bottom shell. The protruding length of the lower limit boss is greater than the protruding length of the upper limit boss, and the outer flange abuts against the top of the lower limit boss, which is conducive to increasing the contact area between the bottom shell and the lower limit boss, and further improving the connection strength of the bottom shell on the lower shell body. The structure of the connecting plate and the positioning plate is simple and easy to process and form, which is also conducive to the connection between the lower shell and the suspension upper shell, and the positioning of the suspension lower shell on the vehicle body. The lower shell body is formed by cast aluminum, which is conducive to improving strength and lightweight design of the suspension structure; the bottom shell is formed by sheet metal stamping, which has the advantage of easy processing and forming.

[0026] In addition, another object of the present invention is to provide a suspension structure, wherein the shell of the suspension structure comprises the suspension lower shell as described above, and a suspension upper shell connected to the suspension lower shell.

[0027] Furthermore, the suspended upper shell and the suspended lower shell are riveted together.

[0028] The suspension structure of the utility model is beneficial to improving its own performance and reducing the maintenance cost of the suspension structure by providing the above-mentioned suspension lower shell.

[0029] In addition, the suspended upper shell and the suspended lower shell are connected by riveting, which has the advantages of simple connection method, easy implementation and good connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0031] Figure 1 It is a structural schematic diagram of the suspended lower housing according to the first embodiment of the utility model at one viewing angle;

[0032] Figure 2 It is a structural schematic diagram of the suspended lower housing according to the first embodiment of the utility model from another viewing angle;

[0033] Figure 3 This is a schematic structural diagram of the lower housing body according to the first embodiment of the utility model at one viewing angle;

[0034] Figure 4 This is a schematic structural diagram of the lower housing body according to the first embodiment of the utility model from another viewing angle;

[0035] Figure 5 This is a schematic diagram of the structure of the bottom shell according to the first embodiment of the utility model;

[0036] Figure 6 This is a structural schematic diagram of the suspension structure described in Embodiment 2 of the present utility model;

[0037] Figure 7 for Figure 6 A top view of

[0038] Figure 8 for Figure 7 AA direction section view;

[0039] Fig. 9 This is a schematic structural diagram of the suspended upper shell described in Example 2 of the utility model.

[0040] Description of reference numerals:

[0041] 1. Suspended lower shell; 2. Suspended upper shell; 3. Rubber block; 4. Suspended main spring; 5. Inner core; 6. Connector;

[0042] 100, mounting groove; 101, lower housing body; 102, bottom housing; 1021, outer flange; 1022, protruding portion; 1023, groove; 103, upper limit boss; 104, lower limit boss; 105, connecting plate; 1051, connecting hole; 1052, positioning plate;

[0043] 201, matching plate; 202, reinforcing rib; 2011, rivet point;

[0044] 301, bump; 302, buffer protrusion. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0046] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0048] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0049] Embodiment 1

[0050] The present embodiment relates to a suspended lower shell 1. In terms of overall structure, the suspended lower shell 1 includes a lower shell body 101 and a bottom shell 102. The lower shell body 101 is used to be connected to the suspended upper shell 2. The bottom shell 102 is arranged at the bottom of the lower shell body 101 and is surrounded by the lower shell body 101 to form a mounting groove 100 with a top opening, and the bottom shell 102 is used to be connected to the suspension main spring 4.

[0051] The lower shell body 101 is provided with an upper limit portion and a lower limit portion protruding into the mounting groove 100, and the upper limit portion and the lower limit portion are arranged at intervals along the height direction of the lower shell body 101. The bottom shell 102 has a protruding portion 1022 protruding outwardly along its own radial direction. When the bottom shell 102 is rotated, the protruding portion 1022 can be sandwiched between the upper limit portion and the lower limit portion, thereby connecting the bottom shell 102 and the lower shell body 101.

[0052] The suspended lower shell 1 described in this embodiment is provided with an upper limit portion and a lower limit portion spaced apart in the height direction on the lower shell body 101, and a protruding portion 1022 is provided on the bottom shell 102, so that when the bottom shell 102 is rotated, the protruding portion 1022 is sandwiched between the upper limit portion and the lower limit portion, and the bottom shell 102 can be connected to the lower shell body 101. Compared with the scheme of connecting the two by riveting process in the prior art, it is not only convenient to install the lower shell body 101 and the bottom shell 102, but also helps to avoid the problems of cracking and rusting caused by riveting connection in the prior art, and helps to reduce production costs.

[0053] Based on the above overall introduction, an exemplary structure of the suspended lower housing 1 in this embodiment is as follows: Figure 1 and Figure 2 The lower shell body 101 is cylindrical, and the bottom shell 102 is located at the open bottom of the lower shell body 101, so as to facilitate the formation of the above-mentioned mounting groove 100 between the bottom shell 102 and the lower shell body 101. In addition, a through hole is provided in the middle of the bottom shell 102 to meet the positioning requirements during use.

[0054] As a preferred embodiment, the upper limit portion in this embodiment includes a plurality of upper limit bosses 103 arranged at intervals along the circumference of the lower shell body 101, the lower limit portion includes a plurality of lower limit bosses 104 arranged at intervals along the circumference of the lower shell body 101, and the protruding portions 1022 are arranged at intervals along the circumference of the bottom shell 102. Here, the upper limit boss 103 and the lower limit boss 104 have simple structures and are easy to process and form. The provision of the plurality of protruding portions 1022 is conducive to further improving the matching effect with the upper limit boss 103 and the lower limit boss 104, thereby improving the connection reliability of the bottom shell 102 on the lower shell body 101.

[0055] In terms of specific structure, the upper limit boss 103 and the lower limit boss 104 are alternately arranged along the circumference of the lower shell body 101. This facilitates the protruding portion 1022 to enter between the upper limit boss 103 and the lower limit boss 104 and be sandwiched between the upper limit boss 103 and the lower limit boss 104. It should be noted that in this embodiment, the upper limit boss 103 and the lower limit boss 104 are alternately arranged along the circumference of the lower shell body 101, including two arrangements.

[0056] The first arrangement of the upper limit boss 103 and the lower limit boss 104 is that the projections of the upper limit boss 103 and the lower limit boss 104 in the height direction of the lower shell body 101 do not overlap. The second arrangement of the upper limit boss 103 and the lower limit boss 104 is that the projections of the upper limit boss 103 and the lower limit boss 104 in the height direction of the lower shell body 101 partially overlap.

[0057] In terms of specific structure, the first arrangement of the upper limit boss 103 and the lower limit boss 104 is as follows: Figures 3 to 5 As shown in . The upper limit boss 103 and the lower limit boss 104 are both four equiangularly spaced along the circumference of the lower shell body 101, and the protrusions 1022 are four equiangularly arranged on the outer periphery of the bottom shell 102. Among them, the bottom shell 102 is formed with a groove 1023 with a top opening, and an outer flange 1021 is provided at the notch of the groove 1023, and the protrusion 1022 is arranged on the outer flange 1021. In this embodiment, the notch of the groove 1023 is arranged upward, and the above-mentioned through hole is arranged through the bottom of the groove 1023. Here, by setting the groove 1023, it is further beneficial to adjust the stiffness of the suspension main spring 4, thereby improving the attenuation effect of vibration excitation. The outer flange 1021 has a simple structure and is easy to process and form, which is beneficial to improving the structural strength of the bottom shell 102. By setting the protrusion 1022 on the outer flange 1021, it is beneficial to improve the structural strength of the protrusion 1022 and the load-bearing performance of the bottom shell 102.

[0058] At this time, a space for the protruding portion 1022 to enter is formed between two adjacent upper limit bosses 103, and each lower limit boss 104 can block the protruding portion 1022 moving downward, which is conducive to ensuring that the bottom shell 102 moves downward to its proper position. At this time, the bottom shell 102 is rotated, so that the protruding portion 1022 can slide down to the bottom of the upper limit boss 103 under the guidance of the outer flange 1021 and the lower limit boss 104, and is restricted from moving upward by the upper limit boss 103. The lower limit boss 104 is blocked at the bottom of the outer flange 1021, thereby restricting the downward movement of the bottom shell 102.

[0059] In this embodiment, the outer circumference of the bottom shell 102 can be alternately limited by the upper limit boss 103 and the lower limit boss 104 through the cooperation of the outer flange 1021 and the protruding portion 1022, which is conducive to increasing the limiting area, thereby ensuring the connection stability of the bottom shell 102 on the lower shell. Moreover, in the process of rotating the bottom shell 102, the abutment between the outer flange 1021 and the lower limit boss 104 is also conducive to improving the rotation stability of the bottom shell 102, so that the protruding portion 1022 slides more smoothly to the bottom of the lower limit boss 104, thereby improving the assembly efficiency of the bottom shell 102.

[0060] To further improve the connection effect of the bottom shell 102 on the lower shell body 101, as Figure 3 and Figure 4As shown in , the protruding length of the lower limiting boss 104 is greater than the protruding length of the upper limiting boss 103, and the outer flange 1021 abuts against the top of the lower limiting boss 104. Such a configuration is conducive to increasing the contact area between the bottom shell 102 and the lower limiting boss 104, further improving the limiting effect of the lower limiting boss 104 on the outer flange 1021, and further facilitating the assembly effect of the bottom shell 102 on the lower shell body 101.

[0061] In this embodiment, when the upper limit boss 103 and the lower limit boss 104 adopt the second arrangement, it is not necessary to set the outer flange 1021. Specifically, the protruding portion 1022 still enters through the space formed between the two adjacent upper limit bosses 103, and the lower limit boss 104 can be blocked at the bottom of the protruding portion 1022, thereby limiting the bottom shell 102 from continuing to move downward. When the bottom shell 102 is rotated, the protruding portion 1022 can slide into the limiting space formed between the upper limit boss 103 and the corresponding lower limit boss 104, so that the top of the same protruding portion 1022 is limited by part of the upper limit boss 103 to move upward, and the bottom is limited by part of the lower limit boss 104 to move downward, and the bottom can also be installed on the lower shell body 101.

[0062] In specific implementation, one of the upper limit boss 103 and the lower limit boss 104 can be integrally formed with the lower shell body 101, and the other can be processed separately from the lower shell body 101, and then connected to the lower shell body 101 by welding. Alternatively, both the upper limit boss 103 and the lower limit boss 104 are processed separately from the lower shell body 101, and are respectively connected to the lower shell body 101 by welding. It should be noted that the upper limit boss 103 and the lower limit boss 104 can also be arranged along the lower shell body 101 without adopting a circumferential alternating arrangement. For example, the upper limit boss 103 and the lower limit boss 104 are arranged one by one in the height direction of the lower shell. Specifically, the protruding portion 1022 still enters through the space formed between two adjacent upper limit bosses 103. When the bottom shell 102 is rotated, the protruding portion 1022 can slide into the limiting space formed between the upper limit boss 103 and the corresponding lower limit boss 104. At this time, the top of the same protruding portion 1022 is restricted from moving upward by the upper limit boss 103 , and the bottom is restricted from moving downward by the lower limit boss 104 , so that the bottom shell 102 can be installed on the lower shell body 101 .

[0063] In this embodiment, the upper limit boss 103, the lower limit boss 104 and the protruding portion 1022 are preferably arc-shaped. Among them, the upper limit boss 103 and the lower limit boss 104 are coaxially arranged with the axis of the lower shell body 101, and the protruding portion 1022 is coaxially arranged with the axis of the bottom shell 102. This is conducive to the movement of the protruding portion 1022 in the axial direction of the lower shell body 101 and the rotation around its own axis, thereby facilitating the installation of the bottom shell 102. It can be understood that in the specific implementation, the number of the upper limit boss 103, the lower limit boss 104 and the protruding portion 1022 is four, and it can also be increased or decreased according to the use requirements.

[0064] In this embodiment, in order to facilitate the connection between the suspension lower housing 1 and the suspension upper housing 2, as shown in FIG. Figure 1 and Figure 2 As shown in the figure, the lower shell body 101 is provided with a connecting plate 105 protruding outward along its own radial direction, and the connecting plate 105 is used to connect with the suspended upper shell 2. In terms of specific structure, the connecting plates 105 are two relatively arranged on the top of the lower shell body 101, and each connecting plate 105 is provided with a connecting hole 1051, and each connecting plate 105 is connected to the suspended upper shell 2 through the corresponding connecting hole 1051. Here, the structure of the connecting plate 105 and the connecting hole 1051 is simple and easy to process and form.

[0065] In order to facilitate the connection between the suspended lower housing 1 and the vehicle body, a positioning plate 1052 extending downward is provided on the connecting plate 105 of this embodiment, and the positioning plate 1052 is used to position the lower housing body 101 on the vehicle body. Figure 1 As shown in , each connecting plate 105 is provided with a positioning plate 1052. The cooperation of the two positioning plates 1052 is conducive to improving the positioning effect of the suspended lower housing 1 on the vehicle body. The positioning plates 1052 here have a simple structure, are easy to be processed and formed on the connecting plates 105, and have a good positioning effect. Of course, in specific implementation, the number, position and specifications of the positioning plates 1052 can be adaptively adjusted according to the use requirements.

[0066] In specific implementation, the lower shell body 101 is formed by cast aluminum, which is conducive to improving the strength of the lower shell body 101, and is also conducive to the lightweight design of the suspension structure, while ensuring that the lower shell body 101 is smoothly demolded. The bottom shell 102 is formed by sheet metal stamping, such as a stamped sheet metal with zinc-nickel plating on the surface. Of course, the bottom shell 102 can also be made of cast aluminum. In this embodiment, the bottom shell 102 has a small structure, is conducive to saving the cost of the vulcanization mold, and can meet the rust prevention requirements.

[0067] The suspended lower shell 1 in this embodiment optimizes the installation method of the lower shell body 101 and the bottom shell 102, so that the assembly form of the lower shell body 101 and the bottom shell 102 is simple, and the two can be fixed by rotation, which simplifies the production process of the suspended lower shell 1 and can avoid the risk of cracking caused by the riveting process used for the lower shell body 101 and the bottom shell 102 in the prior art.

[0068] Embodiment 2

[0069] This embodiment relates to a suspension structure, such as Figures 6 to 8 As shown in the figure, the housing of the suspension structure includes the suspension lower housing 1 described in the first embodiment, and the suspension upper housing 2 connected to the suspension lower housing 1. The top of the suspension main spring 4 abuts against the inner side of the suspension upper housing 2, and the connecting member 6 extends out of the suspension upper housing 2.

[0070] Preferably, in this embodiment, the suspension upper shell 2 is connected to the suspension lower shell 1 by riveting. The suspension upper shell 2 and the suspension lower shell 1 are connected by riveting, which has the advantages of simple connection mode, easy implementation and good connection strength.

[0071] like Fig. 9 As shown in the figure, the bottom of the suspension upper shell 2 is provided with a matching plate 201 corresponding to each connection plate 105, and three connection holes 1051 are arranged at intervals on each connection plate 105. Each matching plate 201 is provided with a rivet point 2011 corresponding to two connection holes 1051, and a mounting pad corresponding to another connection hole 1051. The suspension lower shell 1 and the suspension upper shell 2 are double riveted by four rivet points 2011 and the mounting pad, and have a high riveting strength.

[0072] In this embodiment, the structure and connection method of the mounting pad are not shown in the figure, and the prior art can be referred to. Of course, in specific implementation, the riveting structure can still be adaptively adjusted according to the use requirements, as long as the riveting requirements between the suspended upper shell 2 and the suspended lower shell 1 are met.

[0073] In order to improve the structural strength of the suspended upper housing 2, as Fig. 9 As shown in the figure, a plurality of reinforcing ribs 202 arranged at intervals along the circumferential direction are provided on the outer peripheral wall of the suspended upper shell 2, and each reinforcing rib 202 is extended along the axial direction of the suspended upper shell 2. Not only is the structure simple and easy to arrange and implement, but it is also beneficial to guide the vibration excitation to be transmitted along the direction of the reinforcing rib 202.

[0074] like Figure 8As shown in the figure, the bottom of the suspended main spring 4 is located in the installation groove 100 and is connected to the bottom shell 102. The suspended inner core 5 is arranged on the top of the suspended main spring 4. The inner core 5 is provided with a connecting piece 6 extending from the top of the suspended main spring 4. The inner core 5 and the bottom shell 102 are vulcanized together through the suspended main spring 4, and then installed on the lower shell 1 through the connection between the bottom shell 102 and the lower shell 1. Such a setting is conducive to processing and molding, and is conducive to improving assembly efficiency.

[0075] In order to improve the performance of the suspension main spring 4, Figure 8 As shown in the figure, the bottom of the suspension main spring 4 is provided with a concave portion corresponding to the through hole on the groove 1023, and the concave portion is in a cone shape with the tip facing upward. The provision of the concave portion is conducive to deformation of the suspension main spring 4 when subjected to the vibration force transmitted by the inner core 5, which is conducive to increasing the vibration isolation while reducing noise.

[0076] In order to further improve the use effect of the suspension structure, Figure 6 As shown in , a rubber block 3 is sleeved on the top of the suspended upper shell 2, and a connecting member 6 is set through the rubber block 3. The connecting member 6 is connected to the engine, and a plurality of protrusions 301 arranged at intervals along its own circumference are provided on the top surface of the rubber block 3, and a plurality of buffer protrusions 302 arranged at intervals are provided on the top surface of each protrusion 301. The buffer protrusions 302 are preferably hemispherical, which is conducive to further improving the noise reduction effect of the rubber block 3 on the engine. Of course, the number of protrusions 301, the shape and number of buffer protrusions 302 can be adjusted according to needs.

[0077] In the suspension structure of this embodiment, the inner core 5 and the bottom shell 102 are first vulcanized together through the suspension main spring 4 to form an integral structure, and then the bottom shell 102 is installed between the upper limit part and the lower limit part to install the overall structure on the lower shell 1, and finally the suspension upper shell 2 and the suspension lower shell 1 are riveted together.

[0078] The suspension structure described in this embodiment is beneficial to improving its own performance and reducing the maintenance cost of the suspension structure by providing the suspension lower shell 1 as described above.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A suspended lower housing, characterized in that: The invention comprises a lower shell body (101) and a bottom shell (102), wherein the lower shell body (101) is used to be connected to the suspended upper shell (2), the bottom shell (102) is arranged at the bottom of the lower shell body (101) and is surrounded by the lower shell body (101) to form a mounting groove (100) with a top opening, and the bottom shell (102) is used to be connected to the suspended main spring (4); The lower shell body (101) is provided with an upper limit portion and a lower limit portion protruding into the installation groove (100), and the upper limit portion and the lower limit portion are arranged at intervals along the height direction of the lower shell body (101); the bottom shell (102) has a protruding portion (1022) protruding outwardly along its own radial direction; when the bottom shell (102) is rotated, the protruding portion (1022) can be clamped between the upper limit portion and the lower limit portion, thereby connecting the bottom shell (102) and the lower shell body (101).

2. The suspended lower housing according to claim 1, characterized in that: The upper limit portion comprises a plurality of upper limit bosses (103) arranged at intervals along the circumference of the lower shell body (101), and the lower limit portion comprises a plurality of lower limit bosses (104) arranged at intervals along the circumference of the lower shell body (101); The protruding portions (1022) are multiple and are arranged at intervals along the circumference of the bottom shell (102).

3. The suspended lower housing according to claim 2, characterized in that: The upper limit boss (103) and the lower limit boss (104) are alternately arranged along the circumference of the lower shell body (101).

4. The suspended lower housing according to claim 2, characterized in that: The projections of the upper limit boss (103) and the lower limit boss (104) in the height direction of the lower shell body (101) do not overlap with each other.

5. The suspended lower housing according to claim 2, characterized in that: The bottom shell (102) is formed with a groove (1023) with a top opening, and an outer flange (1021) is provided at the notch of the groove (1023); The protruding portion (1022) is arranged on the outer flange (1021).

6. The suspended lower housing according to claim 5, characterized in that: The protruding length of the lower limit boss (104) is greater than the protruding length of the upper limit boss (103); The outer flange (1021) abuts against the top of the lower limit boss (104).

7. The suspended lower housing according to claim 1, characterized in that: The lower shell body (101) is provided with a connecting plate (105) protruding outward in its radial direction, and the connecting plate (105) is used to be connected to the suspended upper shell (2); The connection plate (105) is provided with a positioning plate (1052) extending downward, and the positioning plate (1052) is used to position the lower shell body (101) on the vehicle body.

8. The suspended lower housing according to any one of claims 1 to 7, characterized in that: The lower shell body (101) is formed by cast aluminum; and / or, The bottom shell (102) is formed by sheet metal stamping.

9. A suspension structure, characterized in that: The housing of the suspension structure comprises a suspension lower housing (1) according to any one of claims 1 to 8, and a suspension upper housing (2) connected to the suspension lower housing (1).

10. The suspension structure according to claim 9, characterized in that: The suspended upper shell (2) and the suspended lower shell (1) are riveted together.

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