A semi-surrounding structure commercial vehicle engine mounting cushion assembly

Abstract

The present invention discloses a semi-surrounding structure commercial vehicle engine mount soft pad assembly. The mount soft pad is arranged inside a mount housing. The mount soft pad includes a bracket inner core, and the bracket inner core is vulcanized on a lower plate through a rubber body. Mounting screw holes are arranged on the bracket inner core. The lower plate is a "U"-shaped structural curved surface, and both ends of the lower plate form a first mounting plane, and mounting holes are arranged on the first mounting plane. A "U"-shaped semi-surrounding curved surface-shaped cavity corresponding to the lower plate is arranged in the middle of the mount housing, and fixing screw holes extend outwards from the end of the cavity, forming a corresponding relationship with the mounting holes. The mount soft pad with the "U"-shaped structure lower plate and the housing of the "U"-shaped semi-surrounding structure cavity cooperate to strengthen the Y-direction limit of the mount, solve the problem that due to the large gap of the limit structure, when the vehicle turns or drives on a curve, the vibration amplitude of the engine in the Y-axis direction is large, improve the Y-direction limit of the mount, and reduce the vibration amplitude of the engine mount soft pad assembly.

Description

Technical Field

[0001] The present invention relates to the field of commercial vehicle parts, and more particularly to a semi-surround structure for a commercial vehicle engine mounting cushion assembly. Background Art

[0002] With the rapid development of automotive technology, people's requirements for vehicle ride comfort have gradually increased, and the demand for vehicle lightweighting has become increasingly prominent. Traditional commercial vehicle engine mounts are mainly composed of a cast steel structure housing and a mounting cushion. As shown in Figures 1-3 wherein Figure 1 is a three-dimensional view of a traditional commercial vehicle engine mounting cushion assembly, Figure 2 is a three-dimensional view of a traditional mounting cushion, Figure 3 is a three-dimensional view of a traditional mounting housing. This type of assembly has a poor limiting structure. During the driving and turning of the vehicle, the engine or transmission will experience significant vibrations along the Y-axis of the three-dimensional coordinate, affecting ride comfort. At the same time, this structure is relatively bulky and cannot meet the increasingly stringent lightweight requirements.

[0003] Therefore, there is an engine mounting cushion with the authorization announcement number CN214396393U. Although the product can meet the performance requirements of the mounting cushion and can achieve the limiting functions in the X, Y, and Z directions of the powertrain, in the later stage of use, due to the aging of the rubber body, the mounting housing cannot stably support the inner core, resulting in the loosening and displacement of the inner core, leading to a significant increase in vibration and mechanical damage to the engine. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the traditional commercial vehicle engine mounting cushion assembly has a large gap in the limiting structure, resulting in a large vibration amplitude in the Y-axis direction. At the same time, it reduces the vibration amplitude of the engine mounting cushion assembly and improves the service life of the product. A semi-surround structure for a commercial vehicle engine mounting cushion assembly is specifically proposed.

[0005] To achieve this, the technical solution of the present invention is: a semi-surround structure for a commercial vehicle engine mounting cushion assembly, including a mounting cushion and a mounting housing. The mounting cushion is arranged inside the mounting housing. It is characterized in that: the mounting cushion includes a bracket inner core, the bracket inner core is vulcanized on a lower plate through a rubber body, and mounting screw holes are provided on the bracket inner core; the lower plate is a "U"-shaped structural curved surface, and both ends of the lower plate form a first mounting plane, and mounting holes are provided on the first mounting plane; a "U"-shaped semi-surround curved surface cavity corresponding to the lower plate is provided in the middle of the mounting housing, and fixing screw holes extend outward from the end of the mounting housing, forming a corresponding relationship with the mounting holes on the first mounting plane; the lower plate is fixed to the end of the mounting housing through the first mounting plane with fixing bolts and the mounting holes.

[0006] The assembly adopts a semi - enclosed structure design. The inner core of the bracket is vulcanized on the lower plate through a rubber body to form an organic whole. The "U" - shaped curved surface of the lower plate supports the inner core of the bracket, enhancing the structural stability. It can well solve the problem of large vibration amplitude in the Y - axis direction of the traditional engine mount soft pad assembly, achieve good limit in the Y - axis direction during vehicle turning, and enhance the shock - absorbing ability of the engine mount soft pad.

[0007] The further improvement lies in: the first mounting plane extends downward to form a second mounting plane; a forward limit boss is arranged on the front side of the bottom of the lower plate, and a reverse limit boss is arranged on the rear side of the bottom of the lower plate; mounting grooves are arranged on the left and right sides of the cavity, a through - hole is arranged at the bottom of the cavity, a limit surface is also arranged under the through - hole, two limit holes are arranged on the back side of the cavity, and a threaded sleeve is inlaid on the bottom surface of the mount housing.

[0008] In this way, through multi - point positioning and fixing, the movement margin of the soft pad in the mount housing becomes smaller, reducing the vibration amplitude of the semi - enclosed structure commercial vehicle engine mount soft pad assembly.

[0009] The further improvement lies in: there are hollow parts on the inner core of the bracket.

[0010] This design significantly improves the lightweight degree of the mount soft pad assembly, enables its static and dynamic stiffness to meet the vibration frequency requirements of the engine, and enhances the shock - absorbing ability of the soft pad.

[0011] The further improvement lies in: there are guide pins on the inner core of the bracket.

[0012] With this design, when installing the inner core of the bracket and the mount housing, the guide pins can guide the installation direction, making the installation of the semi - enclosed structure commercial vehicle mount soft pad assembly with the vehicle body more convenient and fast.

[0013] The further improvement lies in: the forward limit boss of the lower plate is set as a limit claw.

[0014] When the lower plate adopts this design, the lower plate no longer has the first mounting plane, forward limit platform, and reverse limit platform. Instead, mounting holes are added on the second mounting plane and the bottom of the lower plate for fixing the mount soft pad and the mount housing. The limit claw replaces the functions of the forward limit platform and the reverse limit platform. The lower plate with different design schemes can improve the versatility of the semi - enclosed structure commercial vehicle engine mount soft pad assembly and be more suitable for a variety of different commercial vehicle models on the market.

[0015] The further improvement lies in: there is a middle plate between the inner core of the bracket and the lower plate, and the middle plate is a "U" - shaped curved surface.

[0016] An intermediate plate is added. The intermediate plate and the lower plate form a corresponding relationship with the same structure, which plays a role in secondary strengthening of the inner core of the bracket, improves the static and dynamic stiffness of the product, and greatly enhances the seismic buffering ability of the semi-surrounding structure commercial vehicle engine mounting cushion assembly.

[0017] A further improvement lies in that: a plurality of holes are provided on the intermediate plate.

[0018] The holes are used for the overflow of the rubber body, so that the distribution and molding of the rubber body are more uniform, and the intermediate plate is firmly and stably fixed in the rubber body, enhancing the seismic buffering ability of the semi-surrounding structure commercial vehicle engine mounting cushion assembly.

[0019] A further improvement lies in that: an anti-detachment boss is provided on the threaded sleeve.

[0020] Such a design can prevent the threaded sleeve from disengaging from the casting shell.

[0021] A further improvement lies in that: an anti-rotation plane is provided on the anti-detachment boss of the threaded sleeve.

[0022] Such a design prevents the threaded sleeve from rotating in the mounting shell after the semi-surrounding structure commercial vehicle mounting cushion assembly is installed on the vehicle frame.

[0023] A further improvement lies in that: during the vulcanization process of the rubber body (5), a reinforcing rib (501) is formed at the connection part with the mounting shell (2).

[0024] Such a design can prevent the mounting cushion from vibrating and generating abnormal noises.

[0025] Beneficial effects: The assembly adopts a semi-surrounding structure design. The mounting cushion of the "U"-shaped structure lower plate and the shell of the "U"-shaped semi-surrounding structure cavity cooperate to strengthen the Y-direction limit of the mount, solve the problem that due to the large gap of the limit structure, when the vehicle turns or drives on a curve, the vibration amplitude of the engine in the Y-axis direction is large, improve the Y-direction limit of the mount, and reduce the vibration amplitude of the commercial vehicle engine mounting cushion assembly. Among them, the "U"-shaped structure lower plate can adopt different schemes, which can improve the versatility of the semi-surrounding structure commercial vehicle engine mounting cushion assembly and be more suitable for a variety of different commercial vehicle models on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view of a traditional commercial vehicle engine mounting cushion assembly;

[0027] Figure 2 is a perspective view of a traditional mounting cushion;

[0028] Figure 3 is a perspective view of a traditional mounting shell;

[0029] Figure 4 is a perspective view of the present invention;

[0030] Figure 5 is the rear view of the present invention;

[0031] Figure 6 is Figure 5 the sectional view taken along the line B-B of

[0032] Figure 7 is the perspective view of the inner core of the bracket;

[0033] Figure 8 is the front and side perspective view of the suspension cushion;

[0034] Figure 9 is the back perspective view of the suspension cushion;

[0035] Figure 10 is the front and side perspective view of the suspension housing;

[0036] Figure 11 is the back perspective view of the suspension housing;

[0037] Figure 12 is the perspective view of the lower plate provided with a forward limiting boss;

[0038] Figure 13 is the perspective view of the lower plate provided with limiting claws;

[0039] Figure 14 is the perspective view of the suspension cushion including the lower plate provided with limiting claws;

[0040] Figure 15 is the perspective view of the middle plate;

[0041] Figure 16 is the perspective view of the threaded sleeve.

[0042] Reference numerals:

[0043] 1 - suspension cushion; 2 - suspension housing; 3 - inner core of the bracket; 301 - hollow; 302 - guiding groove; 4 - lower plate; 5 - rubber body; 501 - reinforcing rib; 6 - mounting screw hole; 7 - first mounting plane; 8 - mounting hole; 9 - second mounting plane; 10 - forward limiting boss; 11 - reverse limiting boss; 12 - cavity; 13 - fixing screw hole; 14 - mounting groove; 15 - through hole; 16 - limiting surface; 17 - limiting hole; 18 - threaded sleeve; 1801 - anti - detachment boss; 1802 - anti - rotation plane; 19 - limiting claw; 20 - middle plate; 2001 - porous. Detailed implementation manners

[0044] The present invention is as Figures 4-16 shown. Embodiment 1:

[0045] As Figures 4-12 shown.

[0046] A semi-surround structure commercial vehicle engine mount cushion assembly, comprising a mount cushion 1 and a mount housing 2, the mount cushion 1 is arranged inside the mount housing 2, and is characterized in that: the mount cushion 1 includes a bracket inner core 3, the bracket inner core 3 is vulcanized on a lower plate 4 through a rubber body 5, and an installation screw hole 6 is arranged on the bracket inner core 3; the lower plate 4 is a "U"-shaped structural curved surface, both ends of the lower plate 4 form a first installation plane 7, and installation holes 8 are arranged on the first installation plane 7; a "U"-shaped semi-surround curved surface-shaped cavity 12 corresponding to the lower plate 4 is arranged in the middle of the mount housing 2, and fixing screw holes 13 extend outwards at the end of the mount housing 2, forming a corresponding relationship with the installation holes 8 on the first installation plane 7; the lower plate 4 is fixed to the end of the mount housing 2 through the first installation plane 7 with fixing bolts and the installation holes 8.

[0047] The assembly adopts a semi-surround structure design. The bracket inner core 3 is vulcanized on the lower plate 4 through the rubber body 5 to form an organic whole. The "U"-shaped structural curved surface of the lower plate 4 lifts the bracket inner core 3, strengthening the structural stability, and can well solve the problem of large vibration amplitude in the Y-axis direction of the traditional engine mount cushion assembly, realizing good limit in the Y-axis direction during the vehicle turning process, and enhancing the shock absorption capacity of the engine mount cushion assembly.

[0048] The first installation plane 7 extends downwards to form a second installation plane 9; a forward limit boss 10 is arranged on the front side of the bottom of the lower plate 4, and a reverse limit boss 11 is arranged on the rear side of the bottom of the lower plate 4; installation grooves 14 are arranged on the left and right sides of the cavity 12, a through hole 15 is arranged at the bottom of the cavity 12, a limit surface 16 is also arranged below the through hole 15, two limit holes 17 are arranged on the back side of the cavity 12, and a threaded sleeve 18 is inlaid on the bottom surface of the mount housing 2.

[0049] In this way, through multi-point positioning and fixing, the movement margin of the mount cushion 1 inside the mount housing 2 becomes smaller, reducing the vibration amplitude of this semi-surround structure commercial vehicle engine mount cushion assembly.

[0050] A hollow 301 is arranged on the bracket inner core 3.

[0051] Such a design significantly improves the lightweight degree of the mount cushion assembly, enables its static and dynamic stiffness to meet the vibration frequency requirements of the engine, and enhances the shock absorption capacity of the mount cushion assembly.

[0052] A guide pin 302 is arranged on the bracket inner core 3.

[0053] With such a design, when the bracket inner core 3 is installed with the mount housing 2, the guide pin 302 guides the installation direction, making the installation of this semi-surround structure commercial vehicle mount cushion assembly with the vehicle body more convenient and fast. Embodiment 2:

[0054] As Figures 13-14 shown

[0055] The forward limit boss 10 of the lower plate 4 is set as the limit claw 19 or

[0056] When the lower plate 4 adopts this design, the lower plate 4 no longer has the first installation plane 7, the forward limit platform 10, and the reverse limit platform 11. Instead, screw holes are added on the second installation plane 9 and the bottom of the lower plate 4 for fixing the suspension cushion 1 and the suspension housing 2. The limit claw 19 replaces the functions of the forward limit platform 10 and the reverse limit platform 11. The lower plate with different design schemes can improve the versatility of the semi-surround structure commercial vehicle engine suspension cushion assembly and be more suitable for a variety of different commercial vehicle models on the market. Embodiment 3:

[0057] As Figure 15 shown

[0058] A middle plate 20 is provided between the bracket inner core 3 and the lower plate 4, and the middle plate 20 is a "U"-shaped structural surface.

[0059] By adding the middle plate 20, the middle plate 20 forms a corresponding relationship with the lower plate 4 with the same structure, which plays a role in secondary strengthening of the bracket inner core 3, improves the static and dynamic stiffness of the product, and greatly enhances the seismic buffer capacity of the semi-surround structure commercial vehicle engine suspension cushion assembly.

[0060] A plurality of holes 2001 are provided on the middle plate 20.

[0061] The holes 2001 are used for the overflow of the rubber body 5, so that the distribution and molding of the rubber body 5 are more uniform, and the middle plate 20 is firmly and stably fixed in the rubber body 5, enhancing the seismic buffer capacity of the semi-surround structure commercial vehicle engine suspension cushion assembly.

[0062] As Figure 16 shown

[0063] An anti-detachment boss 1801 is provided on the threaded sleeve 18.

[0064] This design can prevent the threaded sleeve 18 from coming out of the casting housing.

[0065] An anti-rotation plane 1802 is provided on the anti-detachment boss 1801 of the threaded sleeve 18.

[0066] This design prevents the threaded sleeve 18 from rotating in the suspension housing 2 after the semi-surround structure commercial vehicle suspension cushion assembly is connected and installed to the vehicle frame.

[0067] During the vulcanization process of the rubber body (5), a reinforcing rib (501) is formed at the connection part with the suspension housing (2).

[0068] This design can prevent the suspension cushion 1 from vibrating and generating abnormal noises.

Claims

1. A semi-surrounding structure commercial vehicle engine mount soft pad assembly, comprising a mount soft pad (1) and a mount housing (2), the mount soft pad (1) is arranged inside the mount housing (2). It is characterized in that: The mount soft pad (1) includes a bracket inner core (3), the bracket inner core (3) is vulcanized on the lower plate (4) through a rubber body (5), and mounting screw holes (6) are arranged on the bracket inner core (3); the lower plate (4) is a "U"-shaped structural curved surface, both ends of the lower plate (4) form a first mounting plane (7), and mounting holes (8) are arranged on the first mounting plane (7); a "U"-shaped semi-surrounding curved surface-shaped cavity (12) corresponding to the lower plate (4) is arranged in the middle of the mount housing (2), fixing screw holes (13) extend outwards at the end of the mount housing (2), and form a corresponding relationship with the mounting holes (8) on the first mounting plane (7); the lower plate (4) is fixed to the end of the mount housing (2) through the first mounting plane (7) with fixing bolts and the mounting holes (8). The first mounting plane (7) extends downwards to form a second mounting plane (9); a forward limiting boss (10) is arranged on the front side of the bottom of the lower plate (4), and a reverse limiting boss (11) is arranged on the rear side of the bottom of the lower plate (4); mounting grooves (14) are arranged on the left and right sides of the cavity (12), a through hole (15) is arranged at the bottom of the cavity (12), a limiting surface (16) is also arranged under the through hole (15), two limiting holes (17) are arranged on the back side of the cavity (12), and a threaded sleeve (18) is inlaid on the bottom surface of the mount housing (2). A hollow (301) is arranged on the bracket inner core (3).

2. A semi-surrounding structure commercial vehicle engine mount soft pad assembly according to claim 1, It is characterized in that: A guide pin (302) is arranged on the bracket inner core (3).

3. A semi-surrounding structure commercial vehicle engine mount soft pad assembly according to claim 1, It is characterized in that: The forward limiting boss (10) of the lower plate (4) is alternatively arranged as a limiting claw (19).

4. A semi-surrounding structure commercial vehicle engine mount soft pad assembly according to claim 1, It is characterized in that: A middle plate (20) is arranged between the bracket inner core (3) and the lower plate (4), and the middle plate (20) is a "U"-shaped structural curved surface.

5. A semi-surrounding structure commercial vehicle engine mount soft pad assembly according to claim 4, It is characterized in that: A plurality of holes (2001) are arranged on the middle plate (20).

6. A semi-surrounding structure commercial vehicle engine mount soft pad assembly according to claim 1, It is characterized in that: An anti-detachment boss (1801) is arranged on the threaded sleeve (18).

7. A semi-surrounding structure commercial vehicle engine mount soft pad assembly according to claim 6, It is characterized in that: An anti-rotation plane (1802) is provided on the anti-disengagement boss (1801) of the threaded sleeve (18).

8. A semi-enclosed structure commercial vehicle engine mount soft pad assembly according to claim 1, characterized in that: During the vulcanization process of the rubber body (5), a reinforcing rib (501) is formed at the connection part with the mount housing (2).

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