阅读说明：本技术 一种新型变速箱悬置 (Novel gearbox suspension ) 是由 俞加帮 夏志华 曹阳 陈志华 于 2019-10-25 设计创作，主要内容包括：本发明涉及一种新型变速箱悬置,包括橡胶主簧、橡胶主簧内芯、变速箱侧悬置支架、变速箱支架、聚氨酯块、缓冲垫、支撑板；橡胶主簧包括上橡胶体、下橡胶体,上橡胶体由上至下向外扩散延伸形成喇叭状结构,下橡胶体的上端与上橡胶体的下端连接且下橡胶体的上端由上至下向内聚拢设置；聚氨酯块为扁环形状结构,聚氨酯块的上下端面上均设有多个向内凹陷的凹槽,聚氨酯块的厚度由中心向外侧端缩小设置且聚氨酯块的上下端面平滑过渡；缓冲垫包括缓冲垫本体以及沿着缓冲垫本体外边缘分布的多个的缓冲凸起,多个缓冲凸起之间具有间隙。本发明具有增大缓冲面积、兼顾减震性和散热性、延长使用寿命的优点。(The invention relates to a novel gearbox suspension, which comprises a main rubber spring, a main rubber spring inner core, a gearbox side suspension bracket, a gearbox bracket, a polyurethane block, a buffer cushion and a support plate, wherein the main rubber spring inner core is arranged on the side of the gearbox; the rubber main spring comprises an upper rubber body and a lower rubber body, wherein the upper rubber body is diffused and extended outwards from top to bottom to form a horn-shaped structure, the upper end of the lower rubber body is connected with the lower end of the upper rubber body, and the upper end of the lower rubber body is gathered inwards from top to bottom; the polyurethane block is in a flat ring-shaped structure, a plurality of inwards concave grooves are formed in the upper end face and the lower end face of the polyurethane block, the thickness of the polyurethane block is reduced from the center to the outer end, and the upper end face and the lower end face of the polyurethane block are in smooth transition; the buffer pad comprises a buffer pad body and a plurality of buffer bulges distributed along the outer edge of the buffer pad body, and gaps are reserved among the buffer bulges. The invention has the advantages of increasing the buffer area, giving consideration to the shock absorption and the heat dissipation and prolonging the service life.)

1. The utility model provides a novel gearbox suspension which characterized in that: the rubber main spring is arranged around the outer portion of the rubber main spring inner core in a surrounding mode, the rubber main spring and the rubber main spring inner core are vulcanized into an integral structure, a cavity for embedding the polyurethane block is formed between the rubber main spring and the rubber main spring inner core, the polyurethane block is sleeved on the outer side of the rubber main spring inner core, the cushion is arranged below the rubber main spring while the supporting plate is arranged below the cushion, the supporting plate is arranged above the gearbox support and is fixedly connected with the gearbox support, the gearbox side suspension support is arranged around the outer portion of the rubber main spring, the lower end of the rubber main spring inner core penetrates through the gearbox side suspension support and is positioned above the gearbox support, a screw rod is arranged in the center of the rubber main spring from top to bottom, the lower end of the screw penetrates through the gearbox bracket;

The rubber main spring comprises an upper rubber body and a lower rubber body, wherein the upper rubber body is diffused and extended outwards from top to bottom to form a horn-shaped structure, the upper end of the lower rubber body is connected with the lower end of the upper rubber body, the upper end of the lower rubber body is gathered inwards from top to bottom, and rubber blocks extend outwards in the horizontal direction at two sides of the joint of the upper rubber body and the lower rubber body;

The polyurethane block is of a flat ring-shaped structure, a plurality of inwards-concave grooves are formed in the upper end face and the lower end face of the polyurethane block respectively, the grooves in the upper end face and the lower end face of the polyurethane block are arranged correspondingly, the grooves are distributed in a circumferential arrangement mode, the thickness of the polyurethane block is reduced from the center to the outer end, and the upper end face and the lower end face of the polyurethane block are in smooth transition; the blotter includes the blotter body and along a plurality of buffering arch that the blotter body outward flange distributes, the clearance has between a plurality of buffering arch, the lower terminal surface of gearbox side suspension support contacts and the gearbox side suspension support is close to the upper and lower terminal surface of rubber main spring position and contacts with block rubber, buffering arch respectively with the buffering arch, the lower terminal surface lateral position and the buffering arch of polyurethane piece contact.

2. The novel transmission suspension of claim 1, wherein: the pressure riveting sheet metal component has between lower rubber body and the gearbox side suspension support, the extending direction of pressure riveting sheet metal component is unanimous with the extending direction of lower rubber body and the both sides of pressure riveting sheet metal component have the extension that corresponds the setting with the block rubber.

3. The novel transmission suspension of claim 1, wherein: the upper end of rubber main spring is equipped with spacing support, the both sides downward sloping of spacing support extends and the both sides end of spacing support is the symmetry setting with the center of spacing support, the vertical upwards extension of the side reason of spacing support makes spacing support upper end have a cell body, the upper end of screw rod is equipped with the nut of screwing up and should screw up the nut and arrange in this cell body.

4. The novel transmission suspension of claim 1, wherein: rubber owner spring inner core includes that an organic whole vulcanizes the portion and vertical portion of gathering together that forms, it is internal to gather together the portion from top to bottom and to gather together the setting and gather together the portion and put in the last rubber of rubber owner spring, vertical portion is arranged in the lower rubber of rubber owner spring internally, the outside in vertical portion is established to the polyurethane piece cover.

5. The novel transmission suspension of claim 1, wherein: the upper rubber body, the lower rubber body and the rubber block are integrally vulcanized.

6. The novel transmission suspension of claim 1, wherein: the upper end surface of the rubber block is of a wavy structure.

7. The novel gearbox suspension of claim 1 or 3, characterized in that: the upper end face of the rubber main spring inner core is arranged at the positions of two sides of the screw rod and is provided with a first limiting boss respectively, and the limiting support is provided with a first through hole for the first limiting boss to penetrate through so as to limit the limiting support in the circumferential direction.

8. The novel transmission suspension of claim 1, wherein: the lower end face of the inner core of the rubber main spring is arranged at the two sides of the screw rod and is provided with a second limiting boss respectively, and the supporting plate is provided with a second through hole for the second limiting boss to penetrate through so as to limit the circumferential direction of the rubber main spring.

the technical field is as follows:

the invention belongs to the field of automobile parts, and particularly relates to a novel gearbox suspension.

Background art:

The gearbox suspension is a part for mounting a power assembly on a vehicle to a vehicle body and a vehicle frame. The power assembly suspension system supports the power assembly, isolates vibration and noise of the power assembly and transmits the vibration and noise to the seat cabin, reduces vibration and noise of an engine and a gearbox, manages acting force and motion displacement of the power assembly under various working conditions, and improves good NVH performance and driving performance of a driver and passengers. The gearbox suspension has the following functions: 1. the vibration of the engine power assembly is isolated, or the vibration and the noise generated by the vibration of the tire and the vehicle body are transmitted to the engine power assembly through the suspension system, so that the vibration transmitted from the engine power assembly to the vehicle body or the vehicle frame is reduced, and the vibration and the noise are effectively reduced; 2. when the automobile is under the action of emergency braking, acceleration or other external loads, the engine does not generate excessive displacement.

patent No. 201510487532.7 a gearbox side suspension structure realizes the shock attenuation buffering mainly through rubber main spring, rubber main spring inner core, and No. 201610743064X gearbox suspension mainly realizes the shock attenuation buffering through supporting main spring (being rubber main spring), has following defect: 1. the upper parts of the rubber main springs in the two patents are of a rectangular structure, although the rubber main springs are diffused and extended downwards, the vertical direction buffer area is small when the rubber main springs of the rectangular structure buffer in the vertical direction, and the shock absorption effect is further reduced; 2. the damping coefficient of rubber is one of important indexes of damping rubber, the large damping is beneficial to damping, the damping coefficient of commonly adopted natural rubber is small, the damping effect is poor under the dynamic environment of an automobile, particularly, the damping buffering effect cannot be met by the rubber main spring configuration of the two patents during idling motion and rapid gear shifting, however, if the rubber with the large damping is only selected, the heat generation is large under the dynamic environment, the aging of a gearbox suspension is influenced, the whole structure of the two materials is surrounded by the rubber main spring, the internal heat dissipation performance is poor, and therefore, how to consider the damping performance and the heat dissipation performance of the gearbox suspension is the problem needing to be solved by the invention, and similar patents are not found through retrieval.

The invention content is as follows:

The invention aims to overcome the defects and provide a novel gearbox suspension which increases the buffer area, gives consideration to shock absorption and heat dissipation and prolongs the service life.

The purpose of the invention is realized by the following technical scheme: a novel gearbox suspension comprises a rubber main spring, a rubber main spring inner core, a gearbox side suspension support, a gearbox support, a polyurethane block, a buffer cushion and a support plate, wherein the rubber main spring is arranged outside the rubber main spring inner core in a surrounding manner, the rubber main spring and the rubber main spring inner core are vulcanized into an integral structure, a cavity for embedding the polyurethane block is formed between the rubber main spring and the rubber main spring inner core, the polyurethane block is sleeved outside the rubber main spring inner core, the buffer cushion is arranged below the rubber main spring, the support plate is arranged below the buffer cushion, the support plate is arranged above the gearbox support and is fixedly connected with the gearbox support, the gearbox side suspension support is arranged outside the rubber main spring in a surrounding manner, the lower end of the rubber main spring inner core penetrates through the gearbox side suspension support and is positioned above the gearbox support, a screw rod is arranged in the center penetrating through the rubber main spring inner core from top to, the lower end of the screw penetrates through the gearbox bracket;

The rubber main spring comprises an upper rubber body and a lower rubber body, wherein the upper rubber body is diffused and extended outwards from top to bottom to form a horn-shaped structure, the upper end of the lower rubber body is connected with the lower end of the upper rubber body, the upper end of the lower rubber body is gathered inwards from top to bottom, and rubber blocks extend outwards in the horizontal direction at two sides of the joint of the upper rubber body and the lower rubber body;

the polyurethane block is in a flat ring-shaped structure, a plurality of inwards concave grooves are formed in the upper end face and the lower end face of the polyurethane block respectively, the grooves are correspondingly formed in the upper end face and the lower end face of the polyurethane block, the grooves are distributed in a circumferential arrangement mode, the thickness of the polyurethane block is reduced from the center to the outer end, and the upper end face and the lower end face of the polyurethane block are in smooth transition; the blotter includes the blotter body and along a plurality of buffering arch that the blotter body outward flange distributes, has the clearance between a plurality of buffering archs, and the lower terminal surface of gearbox side suspension support contacts and the gearbox side suspension support is close to the upper and lower terminal surface of rubber main spring position and contacts with block rubber, buffering arch respectively with the buffering arch, and the lower terminal surface outside position of polyurethane piece contacts with the buffering arch.

The invention is further improved in that: the lower rubber body and the gearbox side suspension support are provided with a press riveting sheet metal part between, and the extending direction of the press riveting sheet metal part is consistent with the extending direction of the lower rubber body, and the two sides of the press riveting sheet metal part are provided with extending parts which are arranged corresponding to the rubber blocks.

the invention is further improved in that: the upper end of the rubber main spring is provided with a limiting support, the two sides of the limiting support extend downwards in a downward inclined mode, the two side ends of the limiting support are symmetrically arranged in the center of the limiting support, the side edge of the limiting support vertically extends upwards to enable the upper end of the limiting support to be provided with a groove body, the upper end of the screw rod is provided with a tightening nut, and the tightening nut is arranged in the groove body.

The invention is further improved in that: the rubber main spring inner core comprises a gathering portion and a vertical portion, wherein the gathering portion is integrally vulcanized, the gathering portion is inwardly gathered from top to bottom and is arranged in an upper rubber body of the rubber main spring, the vertical portion is arranged in a lower rubber body of the rubber main spring, and the polyurethane block is sleeved outside the vertical portion.

The invention is further improved in that: the upper rubber body, the lower rubber body and the rubber block are integrally vulcanized.

The invention is further improved in that: the upper end surface of the rubber block is of a wavy structure.

The invention is further improved in that: the upper end face of the rubber main spring inner core is arranged at the positions of two sides of the screw rod and is provided with a first limiting boss respectively, and the limiting support is provided with a first through hole for the first limiting boss to penetrate through so as to limit the limiting support in the circumferential direction.

The invention is further improved in that: the lower end face of the inner core of the rubber main spring is provided with second limiting bosses at the positions on two sides of the screw respectively, and the supporting plate is provided with a second through hole for the second limiting boss to pass through so as to limit the circumferential direction of the rubber main spring.

Compared with the prior art, the invention has the following advantages:

1. The polyurethane block is sleeved outside the inner core of the rubber main spring, the polyurethane block is in contact with the rubber main spring and the inner core of the rubber main spring, the damping of the polyurethane block is larger than that of the traditional rubber, the polyurethane block has shock absorption performance, the polyurethane block elastomer shows obvious hysteresis on the action of cross-over stress, part of energy of the action of external force is consumed in the internal friction of molecules of the polyurethane block elastomer in the process and is converted into heat energy, the higher the vibration frequency is, the higher the shock absorption performance is, particularly, the better shock absorption effect is achieved during idle speed movement and quick gear shifting, and if a plurality of rubbers are only arranged, the shock absorption effect is not the same as that of shock absorption sound of the rubber main spring. The arrangement of the grooves on the polyurethane block enhances the heat dissipation area, meanwhile, the buffer cushion is arranged below the polyurethane block, the arrangement of the buffer bulges with gaps on the buffer cushion further improves the heat dissipation performance, heat is discharged from the gaps of the buffer bulges, and the side suspension bracket of the gearbox is clamped between the rubber block and the buffer cushion, so that the side displacement of the side suspension bracket of the gearbox is effectively reduced, and the damping effect of a vehicle body or a vehicle frame is improved.

2. The last rubber body of rubber owner spring from top to bottom outdiffusion extend and form loudspeaker column structure, compare in the rubber owner spring of traditional rectangle column structure, its buffering area is the whole loudspeaker column side end face of last rubber body, and buffering area is big, and the rubber owner spring of rectangle column structure, only the both ends face that corresponds the setting produces the buffering during its buffering, can't realize the buffering of all-round 360 angles, consequently this design has also improved damping performance greatly.

Description of the drawings:

Fig. 1 is a schematic structural diagram of a novel gearbox suspension according to the present invention.

fig. 2 is a schematic diagram of a novel gearbox suspension according to the present invention.

Fig. 3 is an internal cross-sectional view of a novel transmission mount of the present invention.

Fig. 4 is a schematic connection diagram of a rubber main spring, an inner core of the rubber main spring and a press-riveting sheet metal part of the novel gearbox suspension.

fig. 5 is a schematic structural diagram of a novel transmission suspension rubber main spring inner core according to the invention.

fig. 6 is a schematic structural diagram of a cushion pad for suspending a transmission according to the present invention.

Reference numbers in the figures: the novel transmission comprises 1-rubber main springs, 2-rubber main spring inner cores, 3-transmission side suspension supports, 4-transmission supports, 5-polyurethane blocks, 6-buffer pads, 7-support plates, 8-cavities, 9-support plates, 10-screws, 11-upper rubber bodies, 12-lower rubber bodies, 13-rubber blocks, 14-grooves, 15-buffer protrusions, 16-gaps, 17-rivet-pressing sheet metal parts, 18-extending parts, 19-limiting supports, 20-groove bodies, 21-tightening nuts, 22-gathering parts, 23-vertical parts, 24-first limiting protrusions, 25-first through holes, 26-second limiting protrusions, 27-second through holes and 28-buffer bodies.

The specific implementation mode is as follows:

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

In the description of the present invention, it is to be understood that terms indicating orientation or positional relationship, such as "upper", "lower", "front", "rear", "inner", "outer", "center", "both sides", etc., are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the structures or units referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise specified and limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, so that those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.

As shown in fig. 1 to 3, an embodiment of a novel transmission suspension of the present invention comprises a main rubber spring 1, a main rubber spring core 2, a transmission side suspension bracket 3, a transmission bracket 4, a polyurethane block 5, a cushion pad 6, and a support plate 7, wherein the main rubber spring 1 is arranged around the outer portion of the main rubber spring core 2, the main rubber spring 1 and the main rubber spring core 2 are vulcanized into an integral structure, a cavity 8 for embedding the polyurethane block 5 is arranged between the main rubber spring 1 and the main rubber spring core 2, the polyurethane block 5 is sleeved on the outer side of the main rubber spring core 2, the cushion pad 6 is arranged below the main rubber spring 1, the support plate 7 is arranged below the cushion pad 6, the support plate 7 is arranged above the transmission bracket 4 and is fixedly connected with the transmission bracket 4, the transmission side suspension bracket 3 is arranged around the outer portion of the main rubber spring 1, the lower end of the main rubber spring core 2 penetrates through the transmission side bracket 3 and is positioned above the transmission bracket 4, a screw rod 10 is arranged from top to bottom through the center of the rubber main spring inner core 2, and the lower end of the screw rod 10 is arranged through the gearbox bracket 4;

As shown in fig. 4, the rubber main spring 1 includes an upper rubber body 11 and a lower rubber body 12, the upper rubber body 11 is diffused and extended from top to bottom to form a horn-shaped structure, the upper end of the lower rubber body 12 is connected with the lower end of the upper rubber body 11, the upper end of the lower rubber body 12 is gathered from top to bottom, and rubber blocks 13 are extended from the two sides of the connection between the upper rubber body 11 and the lower rubber body 12 in the horizontal direction;

The polyurethane block 5 is in a flat ring-shaped structure, a plurality of concave grooves 14 are formed in the upper end face and the lower end face of the polyurethane block 5, the concave grooves 14 are correspondingly formed in the upper end face and the lower end face of the polyurethane block 5, the plurality of concave grooves 14 are distributed in a circumferential arrangement, the thickness of the polyurethane block 5 is reduced from the center to the outer end, and the upper end face and the lower end face of the polyurethane block 5 are in smooth transition; as shown in fig. 6, the cushion pad 6 includes a cushion pad body 28 and a plurality of cushion protrusions 15 distributed along the outer edge of the cushion pad body 28, gaps 16 are formed between the plurality of cushion protrusions 15, the lower end surface of the transmission-side suspension bracket 3 is in contact with the cushion protrusions 15, the upper and lower end surfaces of the transmission-side suspension bracket 3 near the rubber main spring 1 are in contact with the rubber block 13 and the cushion protrusions 15, respectively, and the lower end surface outer side position of the urethane block 5 is in contact with the cushion protrusions 15.

The polyurethane block 5 is sleeved outside the rubber main spring inner core 2, the polyurethane block 5 is in contact with the rubber main spring 1 and the rubber main spring inner core 2, the damping of the polyurethane block 5 is larger than that of traditional rubber, the polyurethane block 5 has shock absorption performance, the polyurethane block 5 elastomer shows obvious hysteresis on the action of cross-over stress, in the process, partial energy of the action of external force is consumed in the internal friction of molecules of the polyurethane block 5 elastomer and is converted into heat energy, the higher the vibration frequency is, the larger the shock absorption performance is, particularly, the better shock absorption effect is achieved during idle speed movement and quick gear shifting, and if a plurality of rubbers are only arranged, the shock absorption effect is not the same as that of the shock absorption sound of the invention. The arrangement of the grooves 14 on the polyurethane block 5 enhances the heat dissipation area, meanwhile, the buffer cushion 6 is arranged below the polyurethane block 5, the arrangement of the buffer bulges 15 with the gaps 16 on the buffer cushion 6 further improves the heat dissipation performance, heat is discharged from the gaps 16 of the buffer bulges 15, the gearbox side suspension bracket 3 is clamped between the rubber block 13 and the buffer cushion 6, the lateral displacement of the gearbox side suspension bracket 3 is effectively reduced, and the damping effect of a vehicle body or a vehicle frame is improved.

the last rubber body 11 of rubber master spring 1 from top to bottom outdiffusion extend and form loudspeaker column structure, compare in the rubber master spring 1 of traditional rectangle column structure, its buffering area is the whole loudspeaker column side end face of last rubber body 11, and buffering area is big, and the rubber master spring of rectangle column structure, the both ends face that only corresponds the setting during its buffering produces the buffering, can't realize the buffering of all-round 360 angles, consequently this design has also improved damping performance greatly.

On this embodiment basis, have between lower rubber body 12 and the gearbox side suspension support 3 and press and rivet sheet metal component 17, the extending direction of pressing and riveting sheet metal component 17 is unanimous with the extending direction of lower rubber body 12 and the both sides of pressing and riveting sheet metal component 17 have the extension 18 that corresponds the setting with the block rubber 13, and the setting of pressing and riveting sheet metal component 17 plays the effect of connecting rubber main spring 1 and gearbox side suspension support 3, makes both connect more firmly.

On the basis of the embodiment, the upper end of the rubber main spring 1 is provided with the limiting bracket 19, two sides of the limiting bracket 19 extend downwards in a downward inclined manner, two side ends of the limiting bracket 19 are symmetrically arranged at the center of the limiting bracket 19, the side edge of the limiting bracket 19 extends upwards in a vertical manner to enable the upper end of the limiting bracket 19 to be provided with the groove body 20, the upper end of the screw 10 is provided with the tightening nut 21, the tightening nut 21 is arranged in the groove body 20, and the tightening nut 21 is arranged in the groove body 20, so that an avoiding space is effectively realized.

On this embodiment basis, as shown in fig. 5, rubber main spring inner core 2 includes that an organic whole vulcanizes the portion of gathering 22 and vertical portion 23 that forms, gather portion 22 from top to bottom and gather the setting inwards and gather portion 22 and arrange in rubber main spring 1's last rubber body 11 in, vertical portion 23 is arranged in rubber main spring 1's lower rubber body 12, polyurethane piece 5 cover is established in vertical portion 23's outside, gather portion 22 and rubber main spring 1's last rubber body 11 when receiving strong vibrations, gather portion 22 and last rubber body 11 that spreads toward opposite direction and can effectively avoid warping.

On this embodiment basis, go up rubber body 11, lower rubber body 12, block rubber 13 formula vulcanization as an organic whole and form, make structural performance more stable, prevent to discover deformation inside and outside under strong vibration.

On the basis of the embodiment, the upper end surface of the rubber block 13 is of a wavy structure, so that the impact area is reduced, and abnormal sound can be prevented.

On the basis of the present embodiment, the upper end surface of the rubber main spring core 2 is disposed at two sides of the screw rod 10 and is respectively provided with a first limiting boss 24, and the limiting bracket 19 is provided with a first through hole 25 for allowing the first limiting boss 24 to pass through, so as to limit the limiting bracket 19 in the circumferential direction. The lower end surface of the rubber main spring inner core 2 is provided with second limiting bosses 26 at the positions at two sides of the screw rod 10, and the supporting plate 9 is provided with second through holes 27 for the second limiting bosses 26 to pass through so as to limit the circumferential direction of the rubber main spring 1. The design ensures the buffering of the screw 10 in the vertical direction, and avoids the displacement of the rubber main spring 1, the rubber main spring inner core 2, the gearbox side suspension bracket 3 and the gearbox bracket 4 in the circumferential direction.

other subject matter not disclosed in its entirety herein is common general knowledge to those skilled in the art. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.