Power assembly suspension support and installation method thereof

Abstract

The invention discloses a power assembly suspension support and an installation method thereof, and the power assembly suspension support comprises an installation support which comprises a bushing seat; the shock absorption bushing assembly comprises an inner bushing, a shock absorption block and an outer bushing which are sequentially arranged from inside to outside, and the shock absorption bushing assembly is mounted in the bushing seat; the first limiting mechanism is connected with the neck bush and used for limiting the displacement of the neck bush in the axial direction of the damping bush assembly; and the second limiting mechanism is connected with the outer bushing, is arranged on the bushing seat and is used for limiting the displacement of the outer bushing in the axial direction of the damping bushing assembly.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle manufacturing, and in particular to a powertrain suspension bracket and an installation method thereof. Background Art

[0002] At present, in traditional fuel-powered vehicles, the powertrain suspension bracket is mainly used to support the engine, gearbox, transfer case and other components. The suspension system can effectively reduce the vibration and noise generated by these components during operation, thereby improving the comfort and stability of the vehicle.

[0003] In some related technologies, the shock absorber in the suspension bracket is generally made of elastomeric material. When other parts connected to the shock absorber apply excessive axial force to it, it will tear and be damaged. Since the electric drive system accelerates quickly, the shock absorber bushing may tear during the rapid acceleration and braking of the vehicle, thus affecting the service life of the bushing. Summary of the invention

[0004] In view of this, the present disclosure provides a powertrain suspension bracket and an installation method thereof, which can improve the service life of a shock absorbing bushing.

[0005] In one aspect of the present disclosure, there is provided a powertrain suspension bracket, comprising:

[0006] mounting bracket, including bushing seat;

[0007] A shock-absorbing bushing assembly, comprising an inner bushing, a shock-absorbing block and an outer bushing arranged in sequence from the inside to the outside, wherein the shock-absorbing bushing assembly is installed in the bushing seat;

[0008] a first limiting mechanism, connected to the inner bushing, and used to limit the displacement of the inner bushing in the axial direction of the shock absorbing bushing assembly;

[0009] The second limiting mechanism is connected to the outer bushing and is disposed on the bushing seat, and is used to limit the displacement of the outer bushing in the axial direction of the shock-absorbing bushing assembly.

[0010] In some embodiments, the powertrain suspension bracket further includes:

[0011] A connecting piece is provided through the inner sleeve,

[0012] Wherein, the first limiting mechanism is fixedly connected to the connecting member, and limits the inner sleeve at at least one end of the inner sleeve along the axial direction.

[0013] In some embodiments, the first limiting mechanism includes:

[0014] A first stopper, having a first through hole for the connecting member to pass through, and fixedly abutting against the inner sleeve in the axial direction;

[0015] The second position-limiting member has a second through hole for the connecting member to pass through, is arranged between the first position-limiting member and the inner bushing, and abuts against the first position-limiting member and the inner bushing respectively.

[0016] In some embodiments, the second limiting member in the first limiting mechanism is a spacer sleeve with optional specifications, and the spacers of various specifications have different axial lengths.

[0017] In some embodiments, the first limiting member has a mounting portion, and the mounting portion is used to mount the powertrain suspension bracket to a vehicle frame.

[0018] In some embodiments, the mounting portion includes a pair of connecting holes, which are perpendicular to the axial direction of the shock-absorbing bushing assembly and are arranged on both sides of the first through hole. The pair of connecting holes mount the powertrain suspension bracket to the frame via threaded connectors.

[0019] In some embodiments, the first limiting mechanism includes:

[0020] There are two groups of the first limit members and the second limit members, one group of the first limit members and the second limit members is located on one side of the inner bushing along the axial direction of the shock-absorbing bushing assembly, and the other group of the first limit members and the second limit members is located on the other side of the inner bushing along the axial direction of the shock-absorbing bushing assembly.

[0021] In some embodiments, the connector includes:

[0022] The pin shaft comprises a threaded section and an end head, wherein the threaded section and the end head are located at two ends of the pin shaft.

[0023] In some embodiments, the connector further comprises:

[0024] A locking mechanism, used to lock the first limiting member, the second limiting member and the inner bushing relative to the pin, comprises:

[0025] a nut, the nut being disposed on the threaded section of the pin and being used to lock the first stopper, the second stopper and the inner bushing relative to the pin; and

[0026] A gasket is arranged between the first limiting member and the nut away from the end, and abuts against the first limiting member and the nut respectively.

[0027] In some embodiments, the threaded section is provided with an anti-rotation pin hole, the nut is provided with an anti-rotation pin groove, and the anti-rotation pin groove is configured to align with the anti-rotation pin hole when the nut is screwed into a predetermined position;

[0028] The locking mechanism also includes:

[0029] An anti-rotation pin is simultaneously inserted into the anti-rotation pin groove and the anti-rotation pin hole, and is used to prevent the nut and the pin shaft from rotating relative to each other.

[0030] In some embodiments, the second limiting mechanism includes an end cover plate, which is fixedly connected to the bushing seat and includes an axial flange fixedly abutting against the outer bushing; the bushing seat has a blocking portion, which is located at one end of the bushing seat away from the end cover plate and fixedly abuts against the outer bushing.

[0031] In some embodiments, the end cover plate further includes a fastening through hole, and the bushing seat includes a fastening hole arranged parallel to the axial direction, so that the end cover plate can be fixedly connected to the bushing seat by fasteners penetrating the fastening through hole and the fastening hole.

[0032] In some embodiments, the first limiting mechanism includes:

[0033] a first stopper having an H-shaped mounting portion for mounting the powertrain suspension bracket to a vehicle frame;

[0034] Part of the fastener is located in the avoidance space formed by the mounting portion.

[0035] In some embodiments, the mounting bracket further includes a mounting base plate and a cushion block, and the mounting base plate is configured to be fixedly connected to the powertrain through the cushion block.

[0036] In some embodiments, the specifications of the cushion block are optional, and the cushion blocks of various specifications have different thicknesses.

[0037] In some embodiments, the mounting bracket further comprises:

[0038] A plurality of mounting holes are arranged in pairs on the mounting base plate;

[0039] Two connecting ribs, fixedly connected to the mounting base plate and forming lifting ears for fixedly connecting to the bushing seat, the two connecting ribs extending along the surface of the mounting base plate and passing through the spacing parts of each pair of mounting holes respectively; and

[0040] The weight-reducing hole is arranged on the installation base plate and between the two connecting rib plates.

[0041] In another aspect of the present disclosure, a method for installing a powertrain suspension bracket is provided, comprising:

[0042] Providing the mounting bracket and the shock absorbing bushing assembly;

[0043] installing the shock absorbing bushing assembly into the bushing seat of the mounting bracket;

[0044] Installing the first limiting mechanism and the second limiting mechanism to form a powertrain suspension bracket;

[0045] installing the powertrain suspension bracket to the powertrain via the mounting bracket;

[0046] The powertrain suspension bracket is connected to the vehicle frame so as to install the powertrain on the vehicle frame.

[0047] In some embodiments, the installation method further comprises:

[0048] When installing the first limiting mechanism, the first limiting mechanism is fixedly connected to the connecting member, and the connecting member is passed through the inner sleeve.

[0049] Therefore, according to the embodiment of the present disclosure, by providing a first limiting mechanism and a second limiting mechanism, when the powertrain is axially displaced due to inertia due to sudden acceleration or sudden braking of the vehicle, the first limiting mechanism and the second limiting mechanism can limit the axial displacement of the inner sleeve and the outer sleeve, thereby effectively reducing the deformation of the shock-absorbing block between the inner sleeve and the outer sleeve, thereby preventing the shock-absorbing block from tearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0051] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0052] Figure 1 is a schematic cross-sectional view of some embodiments of the powertrain suspension bracket according to the present disclosure;

[0053] Figure 2 yes Figure 1 A partial cross-sectional schematic diagram of

[0054] Figure 3 is a cross-sectional schematic diagram of a shock-absorbing bushing assembly according to some embodiments of the powertrain suspension bracket of the present disclosure;

[0055] Figure 4 is a schematic diagram of a first stopper in some embodiments of the powertrain suspension bracket according to the present disclosure;

[0056] Figure 5 is an exploded schematic diagram of some embodiments of the powertrain suspension bracket according to the present disclosure;

[0057] Figure 6is a schematic diagram of connecting some embodiments of the powertrain suspension bracket according to the present disclosure to a powertrain;

[0058] Figure 7 is a schematic diagram of some embodiments of the powertrain suspension bracket according to the present disclosure being connected to the powertrain and mounted to the vehicle frame;

[0059] Figure 8 is a schematic flow chart of some embodiments of the method for installing the powertrain suspension bracket according to the present disclosure;

[0060] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. Description of reference numerals:

[0061] 100-powertrain suspension bracket; 200-powertrain; 300-frame;

[0062] 1-mounting bracket; 11-bushing seat; 12-mounting base plate; 13-pad; 14-mounting hole; 15-connecting rib plate; 16-weight reduction hole;

[0063] 2- shock absorbing bushing assembly; 21- inner bushing; 22- shock absorbing block; 23- outer bushing;

[0064] 3-first limiting mechanism; 31-first limiting member; 311-first through hole; 312-connecting hole; 313-avoidance space; 32-second limiting member; 321-second through hole;

[0065] 4-second limiting mechanism; 41-end cover plate; 42-blocking part; 43-fastener;

[0066] 5-connecting piece; 51-pin shaft; 511-threaded section; 512-end; 53-nut; 54-washer; 55-anti-rotation pin. DETAILED DESCRIPTION

[0067] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0068] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0069] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0070] All terms (including technical terms or scientific terms) used in this disclosure have the same meaning as those understood by ordinary technicians in the field to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such here. Technologies, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the specification.

[0071] In some related technologies, the shock absorber in the suspension bracket is generally made of elastomeric material. When other parts connected to the shock absorber apply excessive axial force to it, it will tear and be damaged. Since the electric drive system accelerates quickly, the shock absorber bushing may tear during the rapid acceleration and braking of the vehicle, thus affecting the service life of the bushing.

[0072] Research has found that in the related technology, the shock-absorbing bushing in the powertrain suspension bracket is not limited axially, which leads to the tearing of the shock-absorbing bushing.

[0073] In view of this, the present disclosure provides a powertrain suspension bracket and an installation method thereof, which can improve the service life of a shock absorbing bushing.

[0074] Figure 1 is a schematic cross-sectional view of some embodiments of the powertrain suspension bracket according to the present disclosure, Figure 2 yes Figure 1 A partial cross-sectional schematic diagram of Figure 3 is a schematic cross-sectional view of a shock-absorbing bushing assembly in some embodiments of the powertrain suspension bracket according to the present disclosure.

[0075] refer to Figure 1-Figure 3 Some embodiments of the present disclosure provide a powertrain suspension bracket 100, including a mounting bracket 1, a shock-absorbing bushing assembly 2, a first limiting mechanism 3 and a second limiting mechanism 4, the mounting bracket 1 including a bushing seat 11, the shock-absorbing bushing assembly 2 including an inner bushing 21, a shock-absorbing block 22 and an outer bushing 23 arranged in sequence from the inside to the outside, the shock-absorbing bushing assembly 2 is installed in the bushing seat 11, the first limiting mechanism 3 is connected to the inner bushing 21, and is used to limit the displacement of the inner bushing 21 in the axial direction of the shock-absorbing bushing assembly 2, the second limiting mechanism 4 is connected to the outer bushing 23, and is arranged on the bushing seat 11, and is used to limit the displacement of the outer bushing 23 in the axial direction of the shock-absorbing bushing assembly 2.

[0076] In this embodiment, the axial displacement of the inner bushing 21 and the outer bushing 23 is limited by the first limiting mechanism 3 and the second limiting mechanism 4. Even when the vehicle is suddenly accelerated or braked, the powertrain 200 cannot drive the powertrain suspension bracket 100 to cause excessive displacement of the inner bushing 21 and the outer bushing 23. The deformation of the shock-absorbing block 22 located between the inner bushing 21 and the outer bushing 23 is reduced, thereby preventing the shock-absorbing block 22 from tearing and extending the service life of the shock-absorbing bushing assembly 2.

[0077] refer to Figure 2 In order to limit the inner sleeve 21, in some embodiments, the powertrain suspension bracket 100 includes a connecting piece 5, which is passed through the inner sleeve 21, wherein the first limiting mechanism 3 is fixedly connected to the connecting piece 5, and limits the inner sleeve 21 at least at one end of the inner sleeve 21 along the axial direction.

[0078] By fixedly connecting the first limiting mechanism 3 with the connecting piece 5, the axial positioning of the first limiting mechanism 3 itself can be ensured, thereby providing a stable axial limiting effect on the inner sleeve 21; when both axial ends of the inner sleeve 21 need to be limited, the first limiting mechanism 3 limits the axial right end and left end of the inner sleeve 21 at the same time; when the axial left end or right end of the inner sleeve 21 does not need to be limited, for example, when the axial left end or right end of the inner sleeve 21 has been fixedly connected, the first limiting mechanism 3 limits the axial right end or left end of the inner sleeve 21; this arrangement can ensure that both axial ends of the inner sleeve 21 are limited.

[0079] refer to Figure 2 In some embodiments, the first limiting mechanism 3 includes a first limiting member 31, which has a first through hole 311 for the connecting member 5 to pass through, and is fixedly abutted against the inner sleeve 21 in the axial direction; the first limiting mechanism 3 also includes a second limiting member 32, which has a second through hole 321 for the connecting member 5 to pass through, is arranged between the first limiting member 31 and the inner sleeve 21, and respectively abuts against the first limiting member 31 and the inner sleeve 21.

[0080] In this way, the first limit member 31, the second limit member 32 and the inner sleeve 21 are all mounted on the connecting member 5. Since the first limit member 31 and the second limit member 32 are fixedly connected to the connecting member 5, when the inner sleeve 21 is subjected to axial force, it will be restricted by the first limit member 31 and the second limit member 32 and cannot perform axial displacement.

[0081] refer to Figure 3 In some embodiments, the inner sleeve 21 of the shock-absorbing sleeve assembly 2 can be a cylinder with a central through hole, the shape of the radial inner surface of the shock-absorbing block 22 matches the shape of the radial outer surface of the inner sleeve 21, and the shape of the radial inner surface of the outer sleeve 23 matches the shape of the radial outer surface of the shock-absorbing block 22.

[0082] In some embodiments, the radial outer surface of the shock absorbing block 22 is provided with a first convex portion, the radial inner surface of the shock absorbing block 22 is provided with a second convex portion, the radial inner surface of the outer bushing 23 is provided with a first concave portion, the first convex portion is embedded in the first concave portion, and the radial outer surface of the inner bushing 21 is provided with a second concave portion, the second convex portion is embedded in the second concave portion. Such an arrangement of the inner bushing 21, the shock absorbing block 22 and the outer bushing 23 can make the shock absorbing block 22 partially embedded in the inner bushing 21 and the outer bushing 23, and when subjected to the axial force, the shock absorbing block 22 is not easy to escape from the space defined by the inner bushing 21 and the outer bushing 23.

[0083] In some related technologies, the suspension bracket is usually connected to the frame through a subframe. Usually, this arrangement occupies a large chassis layout space, has a single form, and has poor adaptability. Different power components require different suspension brackets to match, and the installation is extremely inconvenient, time-consuming and labor-intensive. The existence of the subframe will also increase the weight of the entire vehicle.

[0084] Figure 4 is a schematic diagram of a first stopper in some embodiments of the powertrain suspension bracket according to the present disclosure, Figure 7 It is a schematic diagram of some embodiments of the powertrain suspension bracket according to the present disclosure being connected to the powertrain and mounted to the vehicle frame.

[0085] refer to Figure 4 and Figure 7 In some embodiments, the first limit member 31 has a mounting portion, and the mounting portion is used to mount the powertrain suspension bracket 100 to the vehicle frame 300 .

[0086] In some embodiments, the mounting portion includes a pair of connecting holes 312, which are perpendicular to the axial direction of the shock absorbing bushing assembly 2 and are arranged on both sides of the first through hole 311. The pair of connecting holes 312 install the powertrain suspension bracket 100 to the frame 300 through threaded connectors.

[0087] Depending on the installation position of the frame 300, the paired connection holes 312 can be set, for example, on the upper and lower sides or the left and right sides of the first through hole 311; the threaded connection parts can be, for example, bolts, and during installation, the connection holes 312 and the threaded seats on the frame 300 are tightened according to the specified torque.

[0088] Since the powertrain suspension bracket 100 has such a first limit member 31, it can be directly connected to the frame 300, which reduces the dependence of the powertrain suspension bracket on the sub-frame in some related technologies. Not providing a sub-frame is conducive to saving installation space; and when installing or disassembling the powertrain suspension bracket 100, it is only necessary to install or disassemble the threaded connector, which is convenient to install and disassemble, saving time and effort, and saving labor costs.

[0089] refer to Figure 4 In some embodiments, in order to reduce the difficulty of processing, the first limit member 31 is provided with axially extending bosses at the positions around the first through hole 311 on its two end faces, and the bosses can reduce the contact area when the first limit member 31 abuts against the adjacent parts, making it easier to meet the flatness requirements of the end face of the first limit member 31 during processing.

[0090] refer to Figure 1 and Figure 2 In some embodiments, the second limiting member 32 is a spacer with optional specifications, and the axial lengths of the spacers of various specifications are different.

[0091] The second stopper 32 is a spacer with optional specifications, which can make the position of the first stopper 31 adjustable in the axial direction by selecting spacers of different specifications, so as to adjust the connection hole 312 in the axial direction to a position matching the installation position of the frame 300. This is conducive to improving the adaptability of the powertrain suspension bracket 100 to different frames 300 in the axial direction, further reducing the dependence of the powertrain suspension bracket 100 on the subframe, and expanding the application scenarios of the powertrain suspension bracket 100.

[0092] In some embodiments, the first limiting mechanism 3 includes two groups of first limiting members 31 and second limiting members 32, one group of first limiting members 31 and second limiting members 32 is located on one side of the inner bushing 21 along the axial direction of the shock absorbing bushing assembly 2, and the other group of first limiting members 31 and second limiting members 32 is located on the other side of the inner bushing 21 along the axial direction of the shock absorbing bushing assembly 2.

[0093] In some vehicle frames, a plurality of threaded seats are arranged in pairs, and each pair of threaded seats has a fixed distance in the axial direction. In order to make the connection holes 312 of the two first limit members 31 compatible with the vehicle frame 300, it is necessary to adjust the axial distance between the two first limit members 31 in the two groups of first limit members 31 and second limit members 32. In some embodiments, in the axial direction, the two first limit members 31 include an inner bushing 21 and two second limit members 32. The second limit members 32 of different specifications can be replaced to adjust the axial distance between the two first limit members 31. The two second limit members 32 can be spacers of the same length or spacers of different lengths. This further improves the adaptability of the powertrain suspension bracket 100 to different vehicle frames.

[0094] refer to Figure 2 In some embodiments, the connecting member 5 includes a pin 51 , and the pin 51 includes a threaded section 511 and an end 512 , and the threaded section 511 and the end 512 are located at two ends of the pin 51 .

[0095] The rod section of the pin 51 between the threaded section 511 and the end 512 is used to sleeve the first stopper 31, the second stopper 32 and the inner bushing 21. During installation, the end 512 abuts against the first stopper 31. Figure 2 The middle part abuts against the boss on the end surface of the first limiting member 31.

[0096] In some embodiments, the connecting member 5 also includes a locking mechanism, which is used to lock the first limit member 31, the second limit member 32 and the inner sleeve 21 relative to the pin shaft 51. The locking mechanism includes a nut 53 and a gasket 54. The nut 53 is arranged on the threaded section 511 of the pin shaft 51, and is used to lock the first limit member 31, the second limit member 32 and the inner sleeve 21 relative to the pin shaft 5. The gasket 54 is arranged between the first limit member 31 and the nut 53 away from the end 512, and respectively abuts against the first limit member 31 and the nut 53.

[0097] Since the locking mechanism has a nut 53 and a gasket 54, when the nut 53 is tightened, the first limit member 31, the second limit member 32 and the inner sleeve 21 can be locked relative to the pin shaft 51, thereby realizing axial limitation of the inner sleeve 21; the gasket 54 is arranged between the first limit member 31 and the nut 53 away from the end head 512, and abuts against the first limit member 31 and the nut 53 respectively. The gasket 54 can provide a flat contact surface to evenly disperse the pressure applied by the nut 53, thereby reducing the local stress concentration of the first limit member 31 and the nut 53.

[0098] In order to prevent the nut 53 and the pin shaft 51 from relative rotation, in some embodiments, the threaded section 511 is provided with an anti-rotation pin hole, and the nut 53 is provided with an anti-rotation pin groove, which is configured to be aligned with the anti-rotation pin hole when the nut 53 is screwed into a predetermined position; the locking mechanism also includes an anti-rotation pin 55, which is simultaneously inserted into the anti-rotation pin groove and the anti-rotation pin hole, and is used to prevent the nut 53 and the pin shaft 51 from relative rotation.

[0099] During operation, the nut 53 may be affected by the vibration of the power assembly 200 or other vibrations and rotate relative to the pin 51, thereby leaving the predetermined position; the anti-rotation pin 55 is arranged so that when the nut 53 rotates relative to the pin 51, it will be stuck by the anti-rotation pin 55 and cannot leave the predetermined position, thereby preventing the nut 53 from loosening. Figure 1 , Figure 2 and Figure 5 In the embodiment, the anti-rotation pin groove is arranged at the axial end of the nut 53. It should be understood that the anti-rotation pin groove may also be in other forms, such as being arranged in the axial middle part of the nut 53 in the form of a complete through hole.

[0100] When the vehicle accelerates or brakes suddenly, the inertia of the power assembly 200 is transmitted to the outer bushing 23 through the bushing seat 11. In order to axially limit the outer bushing 23, refer to Figure 2 In some embodiments, the second limiting mechanism 4 includes an end cover plate 41, which is fixedly connected to the bushing seat 11 and includes an axial flange fixedly abutting against the outer bushing 23; the bushing seat 11 has a blocking portion 42, which is located at one end of the bushing seat 11 away from the end cover plate 41 and fixedly abuts against the outer bushing 23.

[0101] By fixing the end cover plate 41 to the bushing seat 11, the axial position of the end cover plate 41 itself can be limited, thereby providing a stable limiting effect for the outer bushing 23. One end of the outer bushing 23 in the axial direction is fixed against the end cover plate 41, and the other end is fixed against the blocking portion 42, so that when the outer bushing 23 is subjected to axial force, it will be limited to the axial range defined by the end cover plate 41 and the blocking portion 42, and will not escape from the above axial range, make excessive displacement, and cause the shock absorbing block 22 to tear. In addition, both ends of the outer bushing 23 are fixed against each other, so that the outer bushing 23 will not move axially when subjected to axial force, resulting in damage or noise caused by hitting the second limiting mechanism 4. The end cover plate 41 can be a complete ring, or it can have an opening, or it can be formed by multiple discontinuous parts.

[0102] In some embodiments, in order to form a fixed connection between the end cover plate 41 and the bushing seat 11, the end cover plate 41 also includes a fastening through hole, and the bushing seat 11 includes a fastening hole arranged parallel to the axial direction, so that the end cover plate 41 can be fixedly connected to the bushing seat 11 by passing the fastening through hole and the fastening hole through the fastener 43.

[0103] The fastening hole may be a blind hole or a through hole, and the fastener 43 is screwed into the fastening through hole and then screwed into the fastening hole to fix the end cover plate 41 to the bushing seat 11. The fastener 43 may be a screw, for example; the fastening through hole, the fastening hole and the fastener 43 are arranged along the circumferential direction, and the number and distribution position are not limited.

[0104] refer to Figure 4 In some embodiments, the first limiting mechanism 3 includes a first limiting member 31, and the first limiting member 31 has an H-shaped mounting portion for mounting the powertrain suspension bracket 100 to the frame 300; wherein a portion of the fastener 43 is located in the avoidance space 313 formed by the mounting portion.

[0105] Since the end cover plate 41 is fixedly connected to the bushing seat 11 by the fastener 43, the fastener 43 may be partially located outside the end cover plate 41 and the bushing seat 11; the first limit member 31 has a large volume due to the installation portion, which may cause the fastener 43 to interfere with the first limit member 31. This situation can be avoided by forming an avoidance space 313 on the installation portion.

[0106] exist Figure 4 In the embodiment, the mounting portion includes two parallel side portions and a middle portion between the two side portions, the middle portion is arranged in the middle of the length direction of the two side portions, and the side portions and the middle portion define escape spaces on both sides of the middle portion. It should be understood that the position and shape of the escape space 313 can be adjusted according to the position and shape of the fastener 43 and the first stopper 31.

[0107] Figure 5 is an exploded schematic diagram of some embodiments of the powertrain suspension bracket according to the present disclosure, Figure 6 It is a schematic diagram of connecting some embodiments of the powertrain suspension bracket according to the present disclosure to the powertrain.

[0108] refer to Figure 5 In some embodiments, the mounting bracket 1 further includes a mounting base plate 12 and a cushion block 13 , and the mounting base plate 12 is configured to be fixedly connected to the power assembly 200 through the cushion block 13 .

[0109] In some vehicles, after the powertrain suspension bracket is fixedly connected to the powertrain, there is a gap between the threaded seat of the frame in the width direction and the powertrain suspension bracket cannot be installed on the frame. The powertrain suspension bracket 100 is fixedly connected to the powertrain 200 by the pad 13, and the above gap between the frame 300 and the powertrain 200 can be filled, so that the powertrain suspension bracket 100 connected to the powertrain 200 can be connected to the frame 300. The pad 13 is provided with a mounting through hole in the thickness direction.

[0110] In some embodiments, the specifications of the cushion block 13 are optional, and the thicknesses of cushion blocks 13 of various specifications are different.

[0111] The cushion block 13 of appropriate specifications can be selected according to the size of the frame 300 and the powertrain 200 , so that the cushion block 13 fits with the powertrain 200 after installation, providing a stable connection between the powertrain 200 and the powertrain suspension bracket 100 .

[0112] In some embodiments, the mounting bracket 1 also includes: a plurality of mounting holes 14, which are arranged in pairs on the mounting base plate 12; two connecting ribs 15, which are fixedly connected to the mounting base plate 12 and form lifting ears for fixedly connecting to the bushing seat 11, and the two connecting ribs 15 extend along the surface of the mounting base plate 12 and pass through the spacing parts of each pair of mounting holes 14 respectively; and weight reduction holes 16, which are arranged on the mounting base plate 12 and are arranged between the two connecting ribs 15.

[0113] refer to Figure 5 and Figure 6 A plurality of mounting holes 14 are arranged in pairs on the mounting base plate 12, matching the suspension mounting holes of the powertrain 200, and can form a more stable connection and reduce shaking or looseness after installation.

[0114] The lifting lug formed by the connecting rib 15 can be a complete ring or have an opening, and the length of the lifting lug can be adjusted according to the size of the frame 300 and the power assembly 200 to match the gap between the frame 300 and the power assembly 200 .

[0115] The two connecting ribs 15 extend along the surface of the mounting base plate, which is beneficial to increase the overall rigidity of the mounting base plate 12 . The two connecting ribs 15 pass through the interval between each pair of mounting holes 14 , respectively, and can provide additional support between the two mounting holes 14 .

[0116] The weight-reducing hole 16 of the mounting bracket 1 may be, for example, a through hole, which is disposed on the mounting base plate 12 and between two connecting ribs 15 , and is used to eliminate redundant materials, thereby facilitating reducing the weight of the powertrain suspension bracket 100 .

[0117] By adjusting the structural forms of the mounting holes 14, mounting base plate 12, cushion block 13 and connecting rib plate 15 on the mounting bracket 1 according to the positions of the suspension mounting holes on different power assemblies, the mounting bracket 1 can be used for the installation of different power assembly suspensions and is suitable for different types of power assemblies 200 and vehicle frames 300.

[0118] Figure 8 is a schematic diagram of some embodiments of the method for installing the powertrain suspension bracket according to the present disclosure, with reference to Figure 8 , the embodiment of the present disclosure provides a method for installing a powertrain suspension bracket, comprising:

[0119] Step S1: providing a mounting bracket 1 and a shock absorbing bushing assembly 2;

[0120] Step S2: installing the shock-absorbing bushing assembly 2 into the bushing seat 11 of the mounting bracket 1;

[0121] Step S3: installing the first limiting mechanism 3 and the second limiting mechanism 4 to form the powertrain suspension bracket 100;

[0122] Step S4: installing the powertrain suspension bracket 100 to the powertrain 200 via the mounting bracket 1;

[0123] Step S5 : Connect the powertrain suspension bracket 100 to the vehicle frame 300 , so as to install the powertrain 200 on the vehicle frame 300 .

[0124] It should be understood that the installation method of the powertrain suspension bracket includes the assembly of components and also includes the installation of the bracket with the vehicle frame and the powertrain. The assembly of components includes steps S1-S3, and the installation with the vehicle frame and the powertrain includes steps S4-S5.

[0125] When installing the components of the powertrain suspension bracket 100, the installation bracket 1 and the shock-absorbing bushing assembly 2 can be provided first. The components of the installation bracket 1 are fixedly connected, preferably by welding. The pad 13 can be welded to the installation base plate 12 first, and then the two connecting ribs 15 can be welded to the installation base plate 12. The connecting ribs 15 are provided with ears for welding to the bushing seat 11. The mounting holes 14 on the installation base plate 12 and the mounting through holes on the pad 13 are processed after welding according to the positions of the suspension mounting holes on both sides of the powertrain 200; the accuracy of the connection between the powertrain suspension bracket 100 and the powertrain 200 can be guaranteed.

[0126] After the mounting bracket 1 is welded, the shock-absorbing bushing assembly 2 is pressed into the bushing seat 11. A blocking portion 42 is provided on the right side of the bushing seat 11. The blocking portion 42 abuts against one axial end of the outer bushing 23 of the shock-absorbing bushing assembly 2 to limit the axial position of the outer bushing 23 of the shock-absorbing bushing assembly 2.

[0127] After the damping bushing assembly 2 is installed, the first limiting mechanism 3 and the second limiting mechanism 4 are installed to form the powertrain suspension bracket 100. The end cover plate 41 is provided with a fastening through hole, and the left side of the bushing seat 11 is provided with a fastening hole. When installing the second limiting mechanism 4, the end cover plate 41 is assembled with the fastening hole on the bushing seat 11 using the fastener 43, and the axial flange on the end cover plate 41 abuts against the other axial end of the outer bushing 23 of the damping bushing assembly 2, which is used to axially limit the outer bushing 23.

[0128] When installing the first limiting mechanism 3, a pair of connecting holes 312 are provided on the first limiting member 31. First, the first limiting member 31 is inserted into the position of the end 512 of the pin shaft 51. The left and right sides of the first limiting member 31 are provided with bosses. The left boss of the first limiting member 31 abuts against the end 512. Then, the second limiting member 32 is inserted into the pin shaft 51. The second limiting member 32 abuts against the right boss of the first limiting member 31. Then, the pin shaft 51 is inserted into the inner bushing 21 of the shock absorbing bushing assembly 2, so that the left second limiting member 32 is fixedly abutted against the inner bushing 21 of the shock absorbing bushing assembly 2. To axially limit the inner sleeve 21 of the shock-absorbing bushing assembly 2, the second limiting member 32, the first limiting member 31 and the gasket 54 are then inserted into the pin 51 on the right side of the bushing seat 11 in sequence, and then the nut 53 is inserted into the tail of the pin 51 and tightened, so that the second limiting member 32 on the right side of the bushing seat 11 is fixedly abutted against the right side of the inner sleeve 21 of the shock-absorbing bushing assembly 2, which is used to axially limit the inner sleeve 21 of the shock-absorbing bushing assembly 2, and finally the anti-rotation pin 55 is inserted into the anti-rotation pin groove of the nut 53 and the anti-rotation pin hole of the threaded section 511 of the pin 51 to prevent loosening.

[0129] After the powertrain suspension bracket 100 is installed, the suspension mounting holes of the powertrain suspension bracket 100 and the powertrain 200 are tightened with bolts according to the specified torque. It is only necessary to adjust the structural form of the mounting base plate 12, the cushion block 13 and the connecting rib plate 15 according to the position of the suspension mounting hole on the powertrain 200, so that it can be used for the installation of different powertrain suspension brackets 100.

[0130] After the powertrain suspension bracket 100 and the powertrain 200 are installed, the powertrain 200 is lifted from the bottom of the frame 300 by a crane, and the screw connection holes 312 on the first limit members 31 on both sides of the powertrain suspension bracket 100 and the threaded seats on the frame 300 are tightened with bolts according to the specified torque, and the powertrain 200 and the frame 300 are installed.

[0131] The powertrain suspension bracket 100 axially limits the inner bushing 21 and the outer bushing 23 of the shock-absorbing bushing assembly 2, thereby reducing the possibility of tearing of the shock-absorbing block 22 during sudden acceleration and braking of the vehicle and extending the service life of the shock-absorbing block 22; and by adjusting the thickness of the pad 13 and the length of the connecting rib plate 15 ear, the distance between the mounting holes 14 of the two powertrain suspension brackets 100 on the cross beams on both sides of the frame 300 is adjusted to match the installation of the powertrain 200 on the frame 300 of different widths, thereby improving the adaptability of the powertrain suspension bracket 100 in the width direction of the powertrain 200.

[0132] The axial distance between the connecting holes 312 of the first limiting members 31 at both ends of the first limiting mechanism 3 can be adjusted by selecting second limiting members 32 of different lengths, thereby improving the adaptability of the powertrain suspension bracket 100 in axial installation on different vehicle frames 300 .

[0133] When the powertrain 200 is removed from the vehicle frame 300, it is only necessary to remove the bolts passing through the connection holes 312. The powertrain suspension bracket 100 according to the embodiment of the present disclosure is directly connected to the vehicle frame 300 by bolts, removing some sub-frames in related technologies, saving installation space, and making installation and removal more convenient, saving time and effort, and saving labor costs.

[0134] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0135] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A powertrain suspension bracket, characterized in that: include: A mounting bracket (1) including a bushing seat (11); A shock-absorbing bushing assembly (2), comprising an inner bushing (21), a shock-absorbing block (22), and an outer bushing (23) arranged in sequence from the inside to the outside, wherein the shock-absorbing bushing assembly (2) is installed in the bushing seat (11); A first limiting mechanism (3) connected to the inner bushing (21) and used to limit the displacement of the inner bushing (21) in the axial direction of the shock absorbing bushing assembly (2); A second limiting mechanism (4) is connected to the outer bushing (23), is arranged on the bushing seat (11), and is used to limit the displacement of the outer bushing (23) in the axial direction of the shock absorbing bushing assembly (2).

2. The powertrain suspension bracket according to claim 1, characterized in that: Also includes: A connecting member (5) is inserted into the inner sleeve (21). The first limiting mechanism (3) is fixedly connected to the connecting member (5) and limits the inner sleeve (21) at at least one end of the inner sleeve (21) along the axial direction.

3. The powertrain suspension bracket according to claim 2, characterized in that: The first limiting mechanism (3) comprises: A first stopper (31) having a first through hole (311) for the connecting member (5) to pass through, and fixedly abutting against the inner sleeve (21) in the axial direction; The second position-limiting member (32) has a second through hole (321) for the connecting member (5) to pass through, is arranged between the first position-limiting member (31) and the inner bushing (21), and abuts against the first position-limiting member (31) and the inner bushing (21), respectively.

4. The powertrain suspension bracket according to claim 3, characterized in that: The second limiting member (32) in the first limiting mechanism (3) is a spacer sleeve with optional specifications, and the spacers of various specifications have different axial lengths.

5. The powertrain suspension bracket according to claim 3, characterized in that: The first position-limiting member (31) has a mounting portion, and the mounting portion is used to mount the powertrain suspension bracket (100) to the vehicle frame (300).

6. The powertrain suspension bracket according to claim 5, characterized in that: The mounting portion comprises a pair of connection holes (312), the pair of connection holes (312) being perpendicular to the axial direction of the shock absorbing bushing assembly (2) and being arranged on both sides of the first through hole (311), and the pair of connection holes (312) being used to mount the powertrain suspension bracket (100) to the vehicle frame (300) via threaded connectors.

7. The powertrain suspension bracket according to claim 3, characterized in that: The first limiting mechanism (3) comprises: There are two groups of the first limiting member (31) and the second limiting member (32), one group of the first limiting member (31) and the second limiting member (32) is located on one side of the inner bushing (21) along the axial direction of the shock absorbing bushing assembly (2), and the other group of the first limiting member (31) and the second limiting member (32) is located on the other side of the inner bushing (21) along the axial direction of the shock absorbing bushing assembly (2).

8. The powertrain suspension bracket according to claim 2, characterized in that: The connecting member (5) comprises: The pin shaft (51) comprises a threaded section (511) and an end head (512), wherein the threaded section (511) and the end head (512) are located at two ends of the pin shaft (51).

9. The powertrain suspension bracket according to claim 8, characterized in that: The connecting member (5) further comprises: A locking mechanism, used for locking the first limiting member (31), the second limiting member (32), and the inner bushing (21) relative to the pin shaft (51), comprising: a nut (53), the nut (53) being arranged on the threaded section of the pin shaft (51) and being used for locking the first limiting member (31), the second limiting member (32) and the inner bushing (21) relative to the pin shaft (5); and A gasket (54), the gasket (54) being arranged between the first limiting member (31) and the nut (53) away from the end head (52), and respectively abutting against the first limiting member (31) and the nut (53).

10. The powertrain suspension bracket according to claim 9, characterized in that: The threaded section is provided with an anti-rotation pin hole, and the nut (53) is provided with an anti-rotation pin groove, wherein the anti-rotation pin groove is configured to align with the anti-rotation pin hole when the nut (53) is screwed into a predetermined position; The locking mechanism also includes: An anti-rotation pin (55) is inserted into both the anti-rotation pin groove and the anti-rotation pin hole, and is used to prevent the nut (53) and the pin shaft (51) from rotating relative to each other.

11. The powertrain suspension bracket according to claim 1, characterized in that: The second limiting mechanism (4) comprises an end cover plate (41), the end cover plate (41) is fixedly connected to the bushing seat (11), and comprises an axial flange fixedly abutting against the outer bushing (23); the bushing seat (11) has a blocking portion (42), the blocking portion (42) is located at an end of the bushing seat (11) away from the end cover plate (41), and fixedly abuts against the outer bushing (23).

12. The powertrain suspension bracket according to claim 11, characterized in that: The end cover plate (41) further comprises a fastening through hole, and the bushing seat (11) comprises a fastening hole arranged parallel to the axial direction, so that the end cover plate (41) is fixedly connected to the bushing seat (11) by penetrating the fastening through hole and the fastening hole through a fastener (43).

13. The powertrain suspension bracket according to claim 12, characterized in that: The first limiting mechanism (3) comprises: a first position-limiting member (31), the first position-limiting member (31) having an H-shaped mounting portion, and being used for mounting the powertrain suspension bracket (100) to a vehicle frame (300); Part of the fastener (43) is located in the avoidance space (313) formed by the mounting portion.

14. The powertrain suspension bracket according to claim 1, characterized in that: The mounting bracket (1) further comprises a mounting base plate (12) and a cushion block (13); the mounting base plate (12) is configured to be fixedly connected to the power assembly (200) via the cushion block (13).

15. The powertrain suspension bracket according to claim 14, characterized in that: The cushion block (13) has optional specifications, and the cushion blocks (13) of various specifications have different thicknesses.

16. The powertrain suspension bracket according to claim 14, characterized in that: The mounting bracket (1) further comprises: A plurality of mounting holes (14) arranged in pairs on the mounting base plate (12); two connecting ribs (15) fixedly connected to the mounting base plate (12) and forming lifting ears for fixedly connecting to the bushing seat (11), the two connecting ribs (15) extending along the surface of the mounting base plate (12) and passing through the interval portions of each pair of mounting holes (14); and The weight-reducing hole (16) is arranged on the mounting base plate (12) and between the two connecting rib plates (15).

17. A method for installing a powertrain suspension bracket according to any one of claims 1 to 16, characterized in that: include: Providing the mounting bracket (1) and the shock absorbing bushing assembly (2); Installing the shock-absorbing bushing assembly (2) into the bushing seat (11) of the mounting bracket (1); Installing the first limiting mechanism (3) and the second limiting mechanism (4) to form a powertrain suspension bracket (100); Mounting the powertrain suspension bracket (100) to the powertrain (200) via the mounting bracket (1); The powertrain suspension bracket (100) is connected to a vehicle frame (300) so as to mount the powertrain (200) on the vehicle frame (300).

18. The installation method according to claim 17, characterized in that: Also includes: When installing the first limiting mechanism (3), the first limiting mechanism (3) is fixedly connected to the connecting member (5), and the connecting member (5) is passed through the inner bushing (21).

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