CN219119701U - Hydraulic transmission mount and vehicle - Google Patents

Abstract

The utility model provides a hydraulic transmission suspension and a vehicle, which comprises an inner core, a main spring, an outer tube, a limiting sleeve and a connecting bracket, wherein the inner core, the main spring, the outer tube, the limiting sleeve and the connecting bracket are sleeved in sequence from inside to outside; the outer peripheral wall of the main spring is provided with a main liquid chamber and an auxiliary liquid chamber, the outer Zhou Qianzhuang of the main spring is provided with a runner plate, a communication hole is penetrated through the runner plate, the outer wall of the runner plate is provided with a guide runner, and the outer peripheral wall of the main spring is provided with a communication runner; when the inner core is subjected to downward load, damping liquid in the main liquid chamber flows into the auxiliary liquid chamber through the communicating flow channel; when the inner core receives upward load, damping liquid in the auxiliary liquid chamber flows into the main liquid chamber through the communication flow channel. According to the hydraulic transmission suspension, the damping liquid is switched between the main liquid chamber and the auxiliary liquid chamber, so that Z-direction damping of a vehicle is effectively improved, vibration influence on a vehicle body caused by a bumpy road is attenuated, and NVH performance of the vehicle is improved.

Description

Hydraulic transmission mount and vehicle

Technical Field

The utility model belongs to the technical field of transmission suspension, and particularly relates to a hydraulic transmission suspension and a vehicle.

Background

The suspension is a bidirectional vibration isolation element and is used for connecting and supporting the speed changer and playing a role in restraining and protecting the movement trend of the speed changer. As part of the suspension system, a transmission suspension is used to connect the transmission to the frame, the transmission suspension supporting the powertrain in combination with the engine suspension.

In the actual use process, the suspension system is used for fixing and supporting the automobile transmission, and can bear reciprocating inertial force and moment generated by the rotation and translation mass of the engine in the transmission. Meanwhile, the suspension system can bear all dynamic forces acting on the transmission in the running process of the automobile, isolate the vibration of the frame or the automobile body caused by the excitation of the engine, and isolate the transmission of the vibration of the automobile body to the transmission caused by the unevenness of the road surface and the impact of the road surface on wheels.

The existing longitudinal transmission suspension is generally of a pure rubber structure, has the defect of low damping, and cannot effectively damp vibration of a bumpy road surface. The liquid chamber inside the common liquid seal bushing is a fixed liquid chamber, so that the damping effect is poor, jolt vibration is easy to generate, and the NVH performance of the vehicle is affected.

Disclosure of Invention

The utility model aims to provide a hydraulic transmission suspension and a vehicle, which can improve the damping effect of the suspension by utilizing the switching of damping liquid between a main liquid chamber and an auxiliary liquid chamber, and achieve a good damping effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the hydraulic speed changer suspension comprises an inner core, a main spring, an outer tube, a limiting sleeve and a connecting bracket which are sleeved in sequence from inside to outside, wherein the connecting bracket is used for being connected with a frame, and the inner core is provided with a first connecting end extending to one side of the connecting bracket to be connected with the speed changer and a second connecting end extending to the other side of the connecting bracket;

the outer peripheral wall of the main spring is provided with a main liquid chamber and an auxiliary liquid chamber which are concavely arranged, the main liquid chamber is positioned below the inner core, the auxiliary liquid chamber is positioned above the inner core, the outer Zhou Qianzhuang of the main spring is provided with a flow passage plate which is shielded outside the main liquid chamber, the flow passage plate is penetrated with a communication hole for damping liquid to enter and exit, the outer wall of the flow passage plate is provided with a guide flow passage communicated with the communication hole, and the outer peripheral wall of the main spring is provided with a communication flow passage which extends circumferentially to communicate the auxiliary liquid chamber and the guide flow passage;

when the main spring receives downward load of the inner core, damping liquid in the main liquid chamber flows into the auxiliary liquid chamber through the guide flow channel and the communication flow channel; when the main spring receives the upward load of the inner core, damping liquid in the auxiliary liquid chamber flows into the main liquid chamber through the communicating flow channel and the guiding flow channel.

In one possible implementation, the communication flow channel is disposed near the first connection end of the inner core, and the guide flow channel is bent back and forth along the circumferential direction of the flow channel plate.

In one possible implementation, two auxiliary liquid chambers are arranged at intervals in the circumferential direction of the main spring, the two auxiliary liquid chambers are connected through an auxiliary flow channel, and at least one auxiliary liquid chamber is communicated with the communication flow channel.

In some embodiments, an inner skeleton is embedded in the main spring, and an avoidance hole for avoiding the main liquid chamber or the auxiliary liquid chamber is formed in the inner skeleton.

In one possible implementation manner, the two ends of the outer tube are respectively provided with a flanging part which is bent towards the axis to limit the two end faces of the main spring, and the inner wall of the outer tube is in contact fit with the peripheral walls of the main spring and the runner plate.

In one possible implementation, the second connection end of the inner core is provided with a limiting assembly, which includes:

the limiting plate is connected to the second connecting end of the inner core;

the limiting rubber cushion is sleeved on the periphery of the inner core and is arranged adjacent to the limiting plate, and the limiting rubber cushion is positioned on one side of the limiting plate, which is close to the main spring.

In some embodiments, the middle part of the limiting plate is provided with a clamping part bent towards one side of the inner core, and the inner core is provided with a clamping groove which extends axially and is matched with the clamping part in a clamping way.

In one possible implementation mode, the limiting plate is provided with a forming notch in a penetrating way, and the clamping part is provided with two clamping parts which are respectively integrally formed at two side edges of the forming notch; the clamping groove is provided with one side wall, and the side walls, which are away from each other, of the two clamping parts are respectively contacted with the inner walls of the two sides of the clamping groove so that the two clamping parts are clamped in the clamping groove.

In some embodiments, a plurality of outwards protruding abutting bosses are respectively arranged on two side walls of the limiting rubber cushion, and the abutting bosses are positioned on the upper portion and the lower portion of the limiting rubber cushion.

Compared with the prior art, the scheme that this application embodiment shows, the hydraulic transmission suspension that this application embodiment provided, be provided with the main liquid room that is located the inner core below respectively on the main spring and be located the auxiliary liquid room of inner core top, be equipped with the intercommunicating pore of inside and outside intercommunication and be used for carrying the guide runner of damping liquid on the runner board in the main liquid room outside, utilize guide runner and intercommunication runner to realize the effective intercommunication between main liquid room and the auxiliary liquid room, under the effect that the main spring received the load of different directions, the damping liquid can circulate and switch between main liquid room and auxiliary liquid room, the Z of vehicle is to the damping has been promoted effectively, the vibration influence that the road caused the automobile body to the car body has been jolt has been attenuated, the NVH performance of vehicle has been improved.

The utility model also provides a vehicle comprising a hydraulic transmission mount. According to the vehicle, vibration in the driving process is reduced by using the hydraulic transmission suspension, when the main spring is acted by load, the effect of improving the Z-direction damping of the vehicle is achieved through the transformation of damping fluid between the main fluid chamber and the auxiliary fluid chamber, the vibration of the vehicle is effectively reduced, and the NVH performance of the vehicle is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a front view of a hydraulic transmission suspension provided by an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a front cross-sectional structure of FIG. 1 according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the right-hand cross-sectional structure of FIG. 1 according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a partial enlarged structure of I in FIG. 3 according to an embodiment of the present utility model;

FIG. 5 is a schematic exploded view of a hydraulic transmission suspension according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the structure of FIG. 1 at another angle (with the connecting bracket, stop collar and outer tube removed) according to an embodiment of the present utility model;

FIG. 7 is a schematic view showing the structure of the inner core, the main spring and the flow channel plate of FIG. 1 at an angle according to an embodiment of the present utility model;

FIG. 8 is a schematic view showing the structure of the inner core, the main spring and the runner plate at another angle in FIG. 7 according to an embodiment of the present utility model;

FIG. 9 is a schematic view of the flow field plate of FIG. 8 according to an embodiment of the present utility model;

FIG. 10 is a schematic view illustrating another angle of the main spring of FIG. 8 according to an embodiment of the present utility model;

FIG. 11 is a schematic view illustrating another angle of the inner skeleton of FIG. 3 according to an embodiment of the present utility model;

FIG. 12 is an enlarged view of the outer tube of FIG. 5 at another angle according to an embodiment of the present utility model;

FIG. 13 is an enlarged view of the limiting plate of FIG. 5 according to an embodiment of the present utility model;

fig. 14 is an enlarged schematic structural view of the limiting rubber pad in fig. 5 according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1. an inner core; 11. a clamping groove; 2. a main spring; 21. a main liquid chamber; 22. an auxiliary liquid chamber; 23. an auxiliary flow channel; 24. a communicating flow passage; 3. an outer tube; 31. a burring part; 4. a limit sleeve; 5. a connecting bracket; 6. a limit component; 61. a limiting plate; 62. limiting rubber cushion; 63. forming a notch; 64. a clamping part; 65. abutting against the boss; 7. an inner skeleton; 71. avoidance holes; 8. a flow channel plate; 81. a communication hole; 82. and guiding the flow channel.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

For convenience of description, the front-rear direction of the vehicle body when the driver sits in the vehicle is defined as the X-direction, the left-right direction of the vehicle body is defined as the Y-direction, and the up-down direction of the vehicle body is defined as the Z-direction.

Referring to fig. 1 to 14, a hydraulic transmission suspension and a vehicle according to the present utility model will now be described. The hydraulic speed changer suspension comprises an inner core 1, a main spring 2, an outer tube 3, a limit sleeve 4 and a connecting bracket 5 which are sleeved in sequence from inside to outside, wherein the connecting bracket 5 is used for being connected with a frame, and the inner core 1 is provided with a first connecting end extending to one side of the connecting bracket 5 to be connected with the speed changer and a second connecting end extending to the other side of the connecting bracket 5;

the outer peripheral wall of the main spring 2 is provided with a main liquid chamber 21 and an auxiliary liquid chamber 22 which are concavely arranged, the main liquid chamber 21 is positioned below the inner core 1, the auxiliary liquid chamber 22 is positioned above the inner core 1, the outer Zhou Qianzhuang of the main spring 2 is provided with a runner plate 8 which is shielded outside the main liquid chamber 21, the runner plate 8 is penetrated with a communication hole 81 for damping liquid to enter and exit, the outer wall of the runner plate 8 is provided with a guide runner 82 communicated with the communication hole 81, and the outer peripheral wall of the main spring 2 is provided with a communication runner 24 which extends circumferentially to communicate the auxiliary liquid chamber 22 with the guide runner 82;

wherein, when the main spring 2 receives the downward load of the inner core 1, the damping liquid in the main liquid chamber 21 flows into the auxiliary liquid chamber 22 through the guide flow channel 82 and the communication flow channel 24; when the main spring 2 receives an upward load from the core 1, the damping liquid in the auxiliary liquid chamber 22 flows into the main liquid chamber 21 through the communication flow passage 24 and the guide flow passage 82.

Compared with the prior art, the hydraulic transmission suspension provided by the embodiment has the advantages that the main spring 2 is provided with the main liquid chamber 21 positioned below the inner core 1 and the auxiliary liquid chamber 22 positioned above the inner core 1, the flow channel plate 8 on the outer side of the main liquid chamber 21 is provided with the communication holes 81 communicated with the inside and the outside and the guide flow channels 82 used for conveying damping liquid, the guide flow channels 82 and the communication flow channels 24 are used for realizing effective communication between the main liquid chamber 21 and the auxiliary liquid chamber 22, under the action of loads in different directions, the damping liquid can circulate and switch between the main liquid chamber 21 and the auxiliary liquid chamber 22, Z-direction damping of a vehicle is effectively improved, vibration influence caused by a bumpy road to a vehicle body is attenuated, and NVH performance of the vehicle is improved.

In this embodiment, the connection bracket 5 is connected with the frame, and the two sides of the connection bracket 5 are provided with connection lugs connected with the frame, and the connection lugs are connected with the frame through connection pieces such as bolt screws. The derailleur is connected at the first link of inner core 1, installs the derailleur on the frame through derailleur hydraulic pressure suspension, plays the supporting role to the derailleur, utilizes derailleur hydraulic pressure suspension to reduce the vibrations of derailleur in the driving in-process simultaneously.

When the first connecting end of the inner core 1 is acted by downward load of the transmission, the inner core 1 acts on the lower part of the main spring 2 to compress the lower part of the main spring 2, at the moment, the main liquid chamber 21 positioned at the lower part of the main spring 2 is synchronously compressed, damping liquid in the main liquid chamber 21 flows to the guide flow channel 82 through the communication hole 81 on the flow channel plate 8, and then the damping liquid enters the auxiliary liquid chamber 22 through the communication flow channel 24;

in contrast, when the first connection end of the inner core 1 is subjected to the upward load of the transmission, the inner core 1 moves upward, the main spring 2 is pulled upward, a pressure difference is generated between the main liquid chamber 21 and the auxiliary liquid chamber 22, and the damping liquid is sucked back into the main liquid chamber 21, and the two processes are performed reciprocally, so that the damping performance of the transmission suspension in the Z direction of the vehicle body, namely, the damping performance in the up-down direction of the vehicle body can be improved, and the vibration influence of a bumpy road section on a power assembly system is avoided.

Specifically, the side wall of the auxiliary liquid chamber 22 is made of rubber with the thickness of 1.5mm-2.5mm, when the load applied to the auxiliary liquid chamber 22 is increased, the internal volume of the auxiliary liquid chamber 22 can be effectively expanded, the liquid storage capacity of the auxiliary liquid chamber is conveniently improved, and therefore the integral damping effect of the transmission suspension structure is improved.

In some possible implementations, the feature communication flow passage 24 adopts a structure as shown in fig. 7 to 9. Referring to fig. 7 to 9, the communication flow passage 24 is provided near the first connection end of the core 1, and the guide flow passage 82 is bent back and forth in the circumferential direction of the flow passage plate 8.

In this embodiment, the communication flow channel 24 is located on the end face of the main spring 2 near the first connection end of the inner core 1, the position where the auxiliary liquid chamber 22 is connected with the communication flow channel 24 is also near the end face of the main spring 2, and the end face is located at the end far away from the limiting component 6, avoiding the influence of the limiting component 6, and ensuring smooth flow switching of the damping liquid between the main liquid chamber 21 and the auxiliary liquid chamber 22.

Further, the guide runner 82 adopts a form of bending back and forth on the runner plate 8 to form a serpentine-like runner structure, so that the flow path of damping liquid on the runner plate 8 can be effectively prolonged, the damping effect is enhanced, and a good damping effect is realized.

In some possible implementations, the above-described feature auxiliary liquid chamber 22 adopts a structure as shown in fig. 2 and 7. Referring to fig. 2 and 7, the auxiliary liquid chambers 22 are provided at intervals in the circumferential direction of the main spring 2, the two auxiliary liquid chambers 22 are connected by an auxiliary flow passage 23, and at least one auxiliary liquid chamber 22 communicates with a communication flow passage 24.

In this embodiment, two auxiliary liquid chambers 22 are provided, and the overall volume of the auxiliary liquid chambers 22 is effectively enlarged by the two auxiliary liquid chambers 22, so that a good capacity expansion effect is realized, and the damping performance of the structure is enhanced. The two auxiliary liquid chambers 22 can be communicated with the communicating flow channels 24 respectively, so that the parallel communication effect with the main liquid chamber 21 is realized; one of the auxiliary liquid chambers 22 may be selected to communicate with the communication flow passage 24.

In this embodiment, one of the auxiliary liquid chambers 22 is in communication with the communication flow passage 24. The auxiliary liquid chamber 22 connected to the communication flow passage 24 is defined as a second auxiliary liquid chamber 22, and the auxiliary liquid chamber 22 not connected to the communication flow passage 24 is defined as a first auxiliary liquid chamber 22. The communication flow passage 24 extends from the main liquid chamber 21 to the auxiliary liquid chamber 22 side along the circumferential direction of the main spring 2, and in order to extend the length of the communication flow passage 24 and improve the damping performance of the structure, the communication flow passage 24 extends to the second auxiliary liquid chamber 22 after passing through the first auxiliary liquid chamber 22 and is communicated with the second auxiliary liquid chamber 22.

On the basis, the connection point of the communication flow passage 24 with the second auxiliary liquid chamber 22 is also located on the side away from the first auxiliary liquid chamber 22. The connection point of the communication flow passage 24 and the main liquid chamber 21 is arranged at one side of the main liquid chamber 21 close to the second auxiliary liquid chamber 22, so that the path of the communication flow passage 24 is prolonged to the maximum extent, the communication flow passage extends for a larger length in the circumferential direction of the main spring 2, and the damping performance of the structure is improved.

Further, the two auxiliary liquid chambers 22 are communicated through the auxiliary flow channel 23, and after the damping liquid enters the second auxiliary liquid chamber 22, the damping liquid enters the first auxiliary liquid chamber 22 through the auxiliary flow channel 23, so that the flow path of the damping liquid is prolonged, the damping effect of the structure is improved, and the damping effect is better.

In some embodiments, the above-described characteristic main spring 2 may adopt a structure as shown in fig. 3, 4 and 11. Referring to fig. 3, 4 and 11, an inner frame 7 is embedded in the main spring 2, and an avoidance hole 71 for avoiding the main liquid chamber 21 or the auxiliary liquid chamber 22 is formed in the inner frame 7.

In the present embodiment, an inner frame 7 is embedded in the main spring 2 so that the main spring 2 has a certain load-bearing capacity. The main spring 2 is a rubber member, and the inner frame 7 and the main spring 2 are integrally vulcanized and formed.

The inner framework 7 is divided into two symmetrical parts which are arranged along the axial direction and are adjacently arranged, so that the inner framework 7 can be spliced into a whole, the processing difficulty is reduced, and the processing precision is improved.

In some possible implementations, the characteristic outer tube 3 adopts a structure as shown in fig. 12. Referring to fig. 12, the two ends of the outer tube 3 are respectively provided with a flange portion 31 bent toward the axis to limit the two end surfaces of the main spring 2, and the inner wall of the outer tube 3 is in contact fit with the peripheral walls of the main spring 2 and the flow channel plate 8.

In this embodiment, the main spring 2 is a flexible member made of rubber, and can be pressed into the outer tube 3, and the flange parts 31 at two ends of the outer tube 3 can limit the outer edges of the two side end surfaces of the main spring 2, so as to ensure the stability of the axial position of the main spring 2. The limit sleeve 4 is sleeved on the periphery of the outer tube 3, and the limit sleeve and the outer tube are integrally vulcanized and formed, so that the connection is reliable.

Furthermore, the outer end face of the limiting part is of a concave-convex combined structure, so that the axial force applied to the limiting sleeve 4 by the transmission can be resisted, and the axial buffering and damping effects are achieved. The stop collar 4 and the spacing portion are flexible material components, and can be made of rubber, silica gel and other materials, so that good buffering and damping effects can be guaranteed.

In some possible implementations, referring to fig. 5, 6, 13 and 14, the second connection end of the inner core 1 is provided with a limiting assembly 6, and the limiting assembly 6 includes a limiting plate 61 and a limiting rubber pad 62; the limiting plate 61 is connected to the second connecting end of the inner core 1; the limit rubber pad 62 is sleeved on the periphery of the inner core 1 and is arranged adjacent to the limit plate 61, and the limit rubber pad 62 is positioned on one side of the limit plate 61, which is close to the main spring 2.

In this embodiment, the second connection end of the inner core 1 is provided with a limiting component 6, and the limiting component 6 is used to control the axial displacement of the transmission, so as to prevent abnormal sound generated by the interference of the transmission and the peripheral components.

Specifically, spacing subassembly 6 is including having the limiting plate 61 of certain structural strength and being located spacing cushion 62 between main spring 2 and the limiting plate 61, and spacing cushion 62 and limiting plate 61 combine can realize soft spacing and the effect that hard spacing combines, can play certain rigidity spacing effect, has a small amount of flexible variable again, can effectively control the derailleur at the axial displacement of inner core 1, through the flexible design of spacing cushion 62, and spacing cushion 62 forms flexible butt effect with main spring 2 when the butt, avoids causing the damage of colliding with main spring 2, is convenient for promote the durability of main spring 2.

At the same time, the limiting rubber pad 62 can also be in abutting contact with the flanging part 31 at the corresponding end of the outer tube 3 and the corresponding end face of the connecting bracket 5, so as to form an axial limiting function on the components.

In some embodiments, the feature-limiting plate 61 may have a structure as shown in fig. 13. Referring to fig. 13, a clamping portion 64 bent toward one side of the inner core 1 is provided in the middle of the limiting plate 61, and a clamping groove 11 extending in the axial direction and engaged with the clamping portion 64 is provided on the inner core 1.

In this embodiment, the limiting plate 61 is engaged with the inner core 1 through the engaging portion 64 and the engaging groove 11, so as to ensure the stability of the relative position between the limiting plate 61 and the inner core 1. The middle part of spacing cushion 62 link up and is equipped with the through-hole that supplies inner core 1 to pass, and spacing cushion 62 is located the homonymy of main spring 2, outer tube 3 and linking bridge 5, and the opposite side of spacing cushion 62 is limiting plate 61, utilizes spacing cushion 62 to realize spacing with the butt of main spring 2, outer tube 3 and linking bridge 5 corresponding terminal surface. When the inner core 1 receives the axial acting force of the transmission, the limiting rubber cushion 62 can be abutted against the end surfaces of the main spring 2, the outer tube 3 or the connecting support 5 to form a flexible abutting action, so that the axial limiting action of the components is achieved.

Through the joint cooperation of joint portion 64 and draw-in groove 11, make main spring 2, limiting plate 61, spacing cushion 62 become integrated into one piece structure, avoid commodity circulation turnover in-process limiting plate 61 and spacing cushion 62 to fill up and drop. In addition, the inner edge of the through hole on the limiting rubber pad 62 is attached to the outer peripheral wall of the inner core 1, and the limiting rubber pad 62 is circumferentially limited due to the fact that the inner core 1 is of a non-circular section, so that the limiting plate 61 can be prevented from circumferentially rotating around the inner core 1.

In some possible implementations, the feature-limiting plate 61 is configured as shown in fig. 13. The limiting plate 61 is provided with a forming notch 63 in a penetrating manner, and the clamping part 64 is provided with two clamping parts which are respectively integrally formed at two side edges of the forming notch 63; the clamping groove 11 is provided with one side wall, and the side walls, which are away from the two clamping parts 64, are respectively contacted with the inner walls at the two sides of the clamping groove 11 so that the two clamping parts 64 are clamped in the clamping groove 11.

In this embodiment, in order to facilitate the processing of the clamping portion 64, a forming notch 63 is formed on the limiting plate 61, the plate portion in the forming notch 63 can be bent towards one side of the inner core 1 to form the clamping portion 64, two sides of the forming notch 63 are provided with two clamping portions 64, and a certain gap is formed between the two clamping portions 64.

Specifically, the two clamping portions 64 are flush with the plate surface of the limiting plate 61 in the initial state, and after the two clamping portions 64 are mounted, the two clamping portions 64 are subjected to bending operation through the tool, so that the two clamping portions are bent into the clamping groove 11 of the inner core 1 to form abutting fit with the inner wall of the clamping groove 11, and reliable connection between the limiting plate 61 and the inner core 1 is achieved.

In some embodiments, the feature-limiting mat 62 may take the configuration shown in fig. 14. Referring to fig. 14, a plurality of outwardly protruding abutment bosses 65 are respectively provided on both sidewalls of the limiting rubber pad 62, and the abutment bosses 65 are located at the upper and lower portions of the limiting rubber pad 62.

In this embodiment, the two side walls of the limiting rubber pad 62 are provided with the abutting boss 65 capable of contacting with the end surfaces of the main spring 2, the outer tube 3 or the connecting bracket 5, and when the main spring 2 is subjected to axial load and moves to one side close to the limiting rubber pad 62, sufficient buffering acting force can be provided through the abutting boss 65. The abutment boss 65 is provided above and below the stopper rubber pad 62, and can form a good abutment stopper with the flange portion 31 of the outer tube 3, the end surface of the main spring 2, or the end surface of the connection bracket 5.

Specifically, the abutment bosses 65 are respectively provided with a plurality of abutment bosses at the upper position and the lower position of the limiting rubber cushion 62, and are distributed at intervals on the trend of the upper edge of the limiting rubber cushion 62, namely, are distributed at intervals on the horizontal direction, so that the abutment buffering effect is conveniently provided for different points of the main spring 2, the outer tube 3 and the connecting bracket 5, and the reliable limiting effect is realized.

Based on the same inventive concept, embodiments of the present application also provide a vehicle including a hydraulic transmission suspension. The vehicle utilizes the hydraulic transmission to suspend to realize reducing the vibration in the driving process, when the main spring 2 is acted by load, the effect of improving the Z-direction damping of the vehicle is realized through the transformation of damping fluid between the main fluid chamber 21 and the auxiliary fluid chamber 22, the vibration of the vehicle is effectively reduced, and the NVH performance of the vehicle is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The hydraulic speed changer suspension is characterized by comprising an inner core, a main spring, an outer tube, a limiting sleeve and a connecting bracket which are sleeved in sequence from inside to outside, wherein the connecting bracket is used for being connected with a frame, and the inner core is provided with a first connecting end extending to one side of the connecting bracket to be connected with the speed changer and a second connecting end extending to the other side of the connecting bracket;

the outer peripheral wall of the main spring is provided with a main liquid chamber and an auxiliary liquid chamber which are concavely arranged, the main liquid chamber is positioned below the inner core, the auxiliary liquid chamber is positioned above the inner core, the outer Zhou Qianzhuang of the main spring is provided with a runner plate which is shielded outside the main liquid chamber, the runner plate is penetrated with a communication hole for damping liquid to enter and exit, the outer wall of the runner plate is provided with a guide runner communicated with the communication hole, and the outer peripheral wall of the main spring is provided with a communication runner which circumferentially extends to communicate the auxiliary liquid chamber with the guide runner;

when the main spring receives downward load of the inner core, damping liquid in the main liquid chamber flows into the auxiliary liquid chamber through the guide flow channel and the communication flow channel; when the main spring receives the upward load of the inner core, damping liquid in the auxiliary liquid chamber flows into the main liquid chamber through the communication flow passage and the guide flow passage.

2. The hydraulic transmission mount of claim 1 wherein the communication runner is disposed proximate the first connecting end of the inner core and the guide runner is reciprocally bent in a circumferential direction of the runner plate.

3. The hydraulic transmission mount of claim 1, wherein two auxiliary fluid chambers are provided at intervals in a circumferential direction of the main spring, the two auxiliary fluid chambers are connected by an auxiliary fluid passage, and at least one auxiliary fluid chamber is communicated with the communication fluid passage.

4. The hydraulic transmission mount of claim 1, wherein an inner frame is embedded in the main spring, and wherein an avoidance hole for avoiding the main fluid chamber or the auxiliary fluid chamber is formed in the inner frame.

5. The hydraulic transmission mount according to claim 1, wherein both ends of the outer tube are respectively provided with flange portions bent toward the axial center to limit both end surfaces of the main spring, and an inner wall of the outer tube is in contact fit with the peripheral walls of the main spring and the flow path plate.

6. The hydraulic transmission mount of any one of claims 1-5, wherein the second connecting end of the inner core is provided with a stop assembly comprising:

the limiting plate is connected to the second connecting end of the inner core;

the limiting rubber cushion is sleeved on the periphery of the inner core and is arranged adjacent to the limiting plate, and the limiting rubber cushion is located on one side, close to the main spring, of the limiting plate.

7. The hydraulic transmission mount of claim 6, wherein the central portion of the limiting plate is provided with a clamping portion bent toward one side of the inner core, and the inner core is provided with a clamping groove extending in an axial direction and in clamping fit with the clamping portion.

8. The hydraulic transmission mount according to claim 7, wherein the limiting plate is provided with a formed notch in a penetrating manner, and the clamping part is provided with two clamping parts which are respectively integrally formed at two side edges of the formed notch; the clamping grooves are provided with one clamping part, and the side walls of the two clamping parts, which are away from each other, are respectively contacted with the inner walls of the two sides of the clamping grooves so that the two clamping parts are clamped in the clamping grooves.

9. The hydraulic transmission mount of claim 6, wherein a plurality of outwardly projecting abutment bosses are provided on both sidewalls of the limiting mat, respectively, the abutment bosses being located at upper and lower portions of the limiting mat.

10. A vehicle, characterized in that it comprises a hydraulic transmission suspension according to any one of claims 1-9.

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