Hydraulic coupling assembly of stabilizer bar, hydraulic clutch stabilizer bar device and vehicle

Abstract

The utility model discloses a hydraulic coupling assembly of a stabilizer bar, a hydraulic clutch stabilizer bar device and a vehicle, and relates to the technical field of automobiles. The coupling assembly comprises a first coupling body, the first coupling body comprises a matching cylinder and a first gear ring, a matching cavity is formed in the matching cylinder, the matching cylinder comprises a cylinder bottom wall and a matching opening, and the first gear ring is arranged around the matching cylinder; the second coupling body comprises a matching column and a second gear ring, the matching column is assembled in the matching cavity through the matching opening, and the second gear ring is located outside the matching cylinder and arranged around the matching column; the shell surrounds the first gear ring and the second gear ring. One of the first gear ring and the second gear ring is a fixed gear ring, and the other of the first gear ring and the second gear ring is a movable gear ring capable of moving in the axial direction; a first control liquid cavity is formed between the first gear ring and the second gear ring in the shell, a second control liquid cavity is formed in the side, away from the fixed gear ring, of the movable gear ring, and the movable gear ring is driven to move in the axial direction when hydraulic pressure difference exists in the first control liquid cavity and the second control liquid cavity. The hydraulic coupling assembly can dynamically adjust the running stability of the vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and in particular relates to a hydraulic coupling component of a stabilizer bar, a hydraulically clutched stabilizer bar device and a vehicle. Background Art

[0002] The function of the vehicle's stabilizer bar is to connect the suspension, suppress the cornering roll, and improve the vehicle's handling stability. When driving on rough roads, the bouncing of the left and right wheels interferes with each other, which has a negative impact on vibration comfort.

[0003] In order to solve the above problems, it is proposed in the prior art to set a hydraulic clutch on the stabilizer bar. When the vehicle is driving normally in a straight line on the road, the clutch is in a disengaged state, the left and right wheels of the vehicle do not interfere with each other, and the stabilizer bar does not work. When the vehicle is turning, the clutch is in a coupled state and the stabilizer bar takes effect. However, the hydraulic clutch mentioned in the prior art usually has a complex structure. After the clutch structure is simplified in some solutions, the reliability of the clutch is reduced, and the clutch is easily ineffective due to insufficient engagement in the coupled state. Therefore, there is room for improvement in the hydraulic clutch of the stabilizer bar. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model firstly proposes a hydraulic coupling assembly of a stabilizer bar, which can realize dynamic adjustment of the rolling stability of the vehicle and realize reliable clutch switching in a simple structure.

[0005] A second aspect of the utility model provides a hydraulically clutched stabilizer bar device.

[0006] A third aspect of the utility model provides a vehicle.

[0007] According to the first aspect of the present invention, the hydraulic coupling assembly of the stabilizer bar comprises: a first coupling body, the first coupling body comprises a matching cylinder and a first gear ring, a matching cavity is formed in the matching cylinder, the axial ends of the matching cylinder are respectively a cylinder bottom wall and a matching opening, and the first gear ring is arranged around the matching cylinder; a second coupling body, the second coupling body comprises a matching column and a second gear ring, the matching column is assembled in the matching cavity through the matching opening, and the second gear ring is located outside the matching cylinder and arranged around the matching column; a shell, the shell at least surrounds the outside of the first gear ring and the second gear ring; wherein, one of the first gear ring and the second gear ring is a fixed gear ring, and the other is a movable gear ring movable along the axial direction of the hydraulic coupling assembly; a first control liquid cavity is formed in the shell between the first gear ring and the second gear ring, and a second control liquid cavity is formed on the side of the movable gear ring away from the fixed gear ring, so as to drive the movable gear ring to move axially when there is a hydraulic pressure difference between the first control liquid cavity and the second control liquid cavity.

[0008] According to the hydraulic coupling assembly of the stabilizer bar of the first embodiment of the utility model, the hydraulic pressure difference between the first control liquid chamber and the second control liquid chamber is controlled to drive the movable gear ring to move axially, thereby changing the clutch state of the stabilizer bar. In this way, the stabilizer bar can selectively play its stabilizing and balancing role according to design requirements. For example, when the vehicle is normally driving straight on the road, the stabilizer bar is in a separated state, the stabilizer bar does not work, and the left and right wheels of the vehicle do not interfere with each other, which can meet the comfort requirements of the vehicle when driving straight; when the vehicle turns, the stabilizer bar is in a combined state, the stabilizer bar takes effect, and meets the stability requirements of the vehicle when rolling.

[0009] By surrounding the first gear ring on the outside of the matching cylinder and the second gear ring on the outside of the matching column, the tooth matching diameter is large, the bending moment resistance is strong when engaged, and the two teeth are not prone to slippage or breakage at the meshing point. This clutch has strong resistance to external impact in the engaged state and high reliability.

[0010] According to the hydraulic coupling assembly of the stabilizer bar in some embodiments of the utility model, a plurality of fluid flow channels distributed in sequence along the circumferential direction are formed between the inner wall of the mating cylinder and the outer wall of the mating column, and are respectively: a high-pressure channel for connecting the high-pressure end of the hydraulic device; a low-pressure channel for connecting the low-pressure end of the hydraulic device; a first regulating channel and a second regulating channel; wherein, the circumferential sides of the high-pressure channel are respectively the first regulating channel and the second regulating channel, and the circumferential sides of the low-pressure channel are respectively the second regulating channel and the first regulating channel; when the angular difference between the mating cylinder and the mating column is zero, the plurality of fluid flow channels are not connected to each other; when the mating cylinder rotates to a first angle relative to the mating column, the high-pressure channel is connected to the first regulating channel, and the low-pressure channel is connected to the second regulating channel; when the mating cylinder rotates to a second angle relative to the mating column, the high-pressure channel is connected to the second regulating channel, and the low-pressure channel is connected to the first regulating channel.

[0011] In some embodiments, there are at least two high-pressure channels and they are distributed at intervals in the circumferential direction, and the low-pressure channels are the same in number as the high-pressure channels and are distributed alternately with the high-pressure channels in the circumferential direction; each of the high-pressure channels has a first regulating channel arranged between the adjacent low-pressure channels in the first direction, and a second regulating channel arranged between the adjacent low-pressure channels in the second direction, and the first direction and the second direction are opposite in the circumferential direction.

[0012] In some embodiments, the plurality of high-pressure channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly; the plurality of low-pressure channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly; the plurality of the first adjustment channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly; and the plurality of the second adjustment channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly.

[0013] In some embodiments, at least two grooves spaced apart along the circumferential direction are provided on the inner wall of the mating cylinder, the portion of the inner wall of the mating cylinder between two adjacent grooves is a spacer, some of the grooves constitute the high-pressure channel, and some of the grooves constitute the low-pressure channel; when the angular difference between the mating cylinder and the mating column is zero, the outer wall of the mating column closes all of the grooves.

[0014] In some embodiments, at least two protrusions are provided on the outer wall of the mating column and are distributed in an annular direction, and a groove is formed between two adjacent protrusions, part of the groove constitutes the first adjustment channel, and part of the groove constitutes the second adjustment channel; when the angular difference between the mating cylinder and the mating column is zero, the protrusion is arranged opposite to the groove, and the groove is arranged opposite to the spacer.

[0015] In some embodiments, surfaces of the plurality of spacers facing the axis of the matching tube are located on the same cylindrical surface, surfaces of the plurality of protrusions away from the axis of the matching tube are located on the same cylindrical surface, and the diameters of the two cylindrical surfaces are equal.

[0016] In some embodiments, the opening of each of the liquid flow channels is disposed on the bottom wall of the cylinder and is distributed at intervals in the circumferential direction.

[0017] The hydraulically clutched stabilizer bar device according to the second aspect of the utility model comprises: a stabilizer bar assembly, the stabilizer bar assembly comprising a first rod body and a second rod body; a hydraulic coupling assembly of the stabilizer bar according to the first aspect of the utility model, the bottom wall of the cylinder of the first coupling body is connected to the first rod body at one end of the bottom wall of the cylinder, and the second coupling body is connected to the second rod body; a hydraulic device, the infusion pipe of the hydraulic device is connected to the hydraulic coupling assembly.

[0018] A vehicle according to an embodiment of the third aspect of the utility model comprises: the stabilizer bar device according to the embodiment of the second aspect of the utility model.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a schematic diagram of the appearance of a hydraulic coupling assembly of a stabilizer bar according to an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a hydraulic coupling assembly of a stabilizer bar according to an embodiment of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the embodiment of the utility model when the first gear ring and the second gear ring are meshed (the housing is hidden);

[0024] Figure 4 This is a schematic structural diagram of a first coupling body according to an embodiment of the utility model;

[0025] Figure 5 This is a distribution diagram of multiple fluid flow channels in the first coupling body (hidden moving gear ring) of an embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of a second coupling body of an embodiment of the utility model;

[0027] Figure 7 It is a schematic diagram of the cooperation between the cooperation cylinder and the cooperation column (when the rotation angle difference is zero) of the embodiment of the utility model;

[0028] Figure 8 It is a schematic diagram of the cooperation between the cooperation cylinder and the cooperation column (when there is a first turning angle between them) according to an embodiment of the utility model;

[0029] Fig. 9 It is a schematic diagram of the cooperation between the cooperation cylinder and the cooperation column (when there is a second turning angle between them) according to an embodiment of the utility model;

[0030] Fig.10 It is a schematic structural diagram of a stabilizer bar device according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] Stabilizer bar device 100,

[0033] Stabilizer bar assembly 10, first rod body 101, second rod body 102,

[0034] Hydraulic coupling assembly 20,

[0035] The first coupling body 21, the matching cylinder 211, the matching port 2111, the matching cavity 2112, the groove 2113, the spacer 2114, the cylinder bottom wall 2115, the first gear ring 212, the moving gear ring 213,

[0036] The second coupling body 24, the matching column 241, the protrusion 2411, the partition groove 2412, the second gear ring 242, the fixed gear ring 243, the housing 25, the first control liquid chamber 26, the second control liquid chamber 27,

[0037] Liquid flow channel 28 , high pressure channel 281 , low pressure channel 282 , first regulating channel 283 , second regulating channel 284 .

[0038] Hydraulic device 30 and liquid infusion tube 31. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Reference below Figure 1 - Fig.10 A hydraulic coupling assembly 20 of a stabilizer bar according to an embodiment of the present invention is described.

[0043] like Figure 1 As shown, the hydraulic coupling assembly 20 according to the first embodiment of the utility model is applied to the stabilizer bar of the vehicle and is used to switch the clutch state of the stabilizer bar. Therefore, the hydraulic coupling assembly 20 of the present application is a clutch.

[0044] like Figure 2 - Figure 3 As shown, the hydraulic coupling assembly 20 according to the embodiment of the utility model includes: a first coupling body 21 , a second coupling body 24 and a housing 25 .

[0045] like Figure 4 - Figure 5 As shown, the first coupling body 21 includes a matching cylinder 211 and a first gear ring 212, and a matching cavity 2112 is formed in the matching cylinder 211. Figure 3 - Figure 4 The two axial ends of the mating tube 211 are the tube bottom wall 2115 and the mating opening 2111, respectively, and the first gear ring 212 is arranged around the mating tube 211. In the present invention, the direction in which the mating tube 211 extends along the length of the stabilizer bar is referred to as the axial direction, the direction perpendicular to the axial direction is referred to as the radial direction, and the direction around the axial direction is referred to as the circumferential direction.

[0046] like Figure 6 As shown, the second coupling body 24 includes a matching column 241 and a second gear ring 242 . The matching column 241 is assembled in the matching cavity 2112 through the matching opening 2111 . The second gear ring 242 is located outside the matching cylinder 211 and is arranged around the matching column 241 .

[0047] The mating cavity 2112 provides a certain movement space for the mating column 241, which can prevent the mating column 241 from being interfered by the outside world during the movement, thereby ensuring the mating effect.

[0048] The mating column 241 of the second coupling body 24 is configured to be inserted into the mating cavity 2112 of the first coupling body 21. This arrangement allows the two coupling bodies to achieve relative rotation while maintaining a certain connection strength. The mating cylinder 211 and the mating column 241 are in axial cooperation, and the two can rotate relative to each other but cannot move relative to each other along the axial direction. This restriction is conducive to ensuring a reliable rotation connection between the first coupling body 21 and the second coupling body 22 in the clutch disengagement state.

[0049] Optionally, at least one of the outer surface of the mating column 241 and the inner surface of the mating cavity 2112 is provided with a coating. The coating is a lubricating layer to reduce friction and extend the service life. Of course, in some other embodiments, the material of the mating column 241 and the mating cavity 2112 is a wear-resistant material to extend the service life of the hydraulic coupling assembly 20.

[0050] Combination Figure 3 The second gear ring 242 surrounds the matching column 241 and is located outside the matching cylinder 211. It is arranged opposite to the first gear ring 212. The tooth shape and arrangement of the second gear ring 242 match the first gear ring 212 to ensure that the two can be accurately engaged or disengaged. When the clutch needs to be switched to the engaged state to limit the relative rotation of the two ends of the hydraulic coupling assembly 20, the first gear ring 212 and the second gear ring 242 are engaged.

[0051] The housing 25 at least surrounds the outer sides of the first gear ring 212 and the second gear ring 242. Figure 1 - Figure 2, the shell 25 surrounds and covers the outside of the first gear ring 212 and the second gear ring 242 to form a closed cavity. The construction of this closed cavity can accurately control and maintain the pressure environment inside the cavity, ensuring that the hydraulic medium can stably and efficiently transmit power within a preset pressure range, thereby realizing the dynamic adjustment function of the stabilizer bar. At the same time, the closed design of the shell 25 also enhances the protection effect of the first gear ring 212 and the second gear ring 242. It can isolate foreign matter, dust and impurities in the external environment and prevent them from invading between the first gear ring 212 and the second gear ring 242, thereby avoiding the potential impact of these adverse factors on the meshing effect of the gear rings. This protection mechanism not only ensures the cleanliness and working accuracy of the hydraulic coupling assembly 20, but also extends its service life and reduces maintenance costs.

[0052] Here, the housing 25 may be a single part or may be composed of multiple parts. Figure 2 For example, one end of the shell 25 is sleeved on the outside of the first coupling body 21, and the other end is connected to the second coupling body 24. The two ends of the shell 25 are sealed and connected to the first coupling body 21 and the second coupling body 24 respectively. For example, the shell 25 is welded to the first coupling body 21, and the shell 25 is rotatably connected to the second coupling body 24, and a seal is provided between the two. For another example, the shell 25 is rotatably connected to the first coupling body 21, and the shell 25 is rotatably connected to the second coupling body 24, and a seal is provided at the rotatable connection, which can be a sealing ring. A bearing can also be provided at the rotatable connection, as long as it does not affect the sealing and relative rotation. Further optionally, the rotating connection is also provided with a clamping ring for limiting the seal.

[0053] One of the first gear ring 212 and the second gear ring 242 is a fixed gear ring 243 , and the other is a movable gear ring 213 movable in the axial direction of the hydraulic coupling assembly 20 .

[0054] That is to say, when the first gear ring 212 is a fixed gear ring 243, the second gear ring 242 is a movable gear ring 213 that is movable axially along the hydraulic coupling assembly 20. At this time, the second gear ring 242 is movable axially along the matching column 241, and the second gear ring 242 cannot rotate circumferentially along the matching column 241 or the rotation range is limited.

[0055] When the second gear ring 242 is a fixed gear ring 243, the first gear ring 212 is a movable gear ring 213 that is movable axially along the hydraulic coupling assembly 20. At this time, the first gear ring 212 is movable axially along the matching tube 211, and the first gear ring 212 cannot rotate circumferentially along the matching tube 211 or the rotation range is limited.

[0056] For ease of understanding, the following text is combined with Figure 2 - Figure 3, taking the second gear ring 242 as a fixed gear ring 243 and the first gear ring 212 as a mobile gear ring 213 as an example for explanation. When the clutch needs to be switched to the engaged state, that is, when the coupling effect of the hydraulic coupling assembly 20 needs to be realized, the first gear ring 212 is pushed to move axially toward the second gear ring 242. However, as the first gear ring 212 gradually approaches the second gear ring 242 and reaches the meshing position, the tooth structure between the two engages, preventing the first gear ring 212 from further moving, thereby realizing the coupling of the hydraulic coupling assembly 20. Of course, the second gear ring 242 can also be a mobile gear ring 213 and the first gear ring 212 can be a fixed gear ring 243, which is the same as the above technical solution and will not be described in detail.

[0057] like Figure 2 As shown, a first control liquid chamber 26 is formed in the housing 25 between the first gear ring 212 and the second gear ring 242, and a second control liquid chamber 27 is formed on the side of the movable gear ring 213 away from the fixed gear ring 243, so as to drive the movable gear ring 213 to move axially when there is a hydraulic difference between the first control liquid chamber 26 and the second control liquid chamber 27.

[0058] It can be understood that the first control liquid chamber 26 is filled with hydraulic medium for directly transmitting power to the first gear ring 212. At the same time, the side of the mobile gear ring 213 (such as the first gear ring 212) away from the fixed gear ring 243 (such as the second gear ring 242) constitutes the second control liquid chamber 27. This arrangement makes the two liquid chambers independent of each other in structure and together constitute the clutch switching implementation structure of the hydraulic coupling assembly 20.

[0059] When there is a hydraulic pressure difference between the first control liquid chamber 26 and the second control liquid chamber 27, this pressure difference will immediately be converted into a power source for pushing the mobile gear ring 213 (such as the first gear ring 212) to move axially. Specifically, if a high pressure is applied to the second control liquid chamber 27 through the external hydraulic device 30, assuming that the pressure of the second control liquid chamber 27 is P2, while the pressure of the first control liquid chamber 26 is maintained or reduced, assuming that the pressure of the first control liquid chamber 26 is P1, so that P2>P1, then the hydraulic pressure difference between the two liquid chambers, that is, (P2-P1), will generate a thrust that pushes the mobile gear ring 213 (such as the first gear ring 212) toward the fixed gear ring 243 (such as the second gear ring 242), driving the first gear ring 212 to move axially until it is meshed with the second gear ring 242. Conversely, if the direction of the hydraulic pressure difference is adjusted, the reverse movement of the first gear ring 212 can also be achieved, thereby releasing the meshing state.

[0060] In some optional embodiments, such as 4- Figure 6As shown, the fixed gear ring 243 is integrally formed on the matching column 241 or the matching cylinder 211. For example, the second gear ring 242 is integrally formed on the outer peripheral surface of the matching column 241. By providing the integrally formed second gear ring 242, the problems of insufficient connection strength, easy loosening, etc. that may be caused by assembling together by welding, bolting, etc. in the traditional design are avoided. It can be seen that in the process of one-piece molding, the material parts are directly molded in the mold, so that the bonding surface between the gear ring and the cylinder or column is almost non-existent, thereby achieving seamless connection. This seamless connection method greatly enhances the integrity and stability of the structure, so that the stabilizer bar device 100 can remain stable and reliable when subjected to a variety of complex working conditions.

[0061] Secondly, one-piece molding also improves the utilization rate of raw materials. Since the gear ring and the cylinder or column are molded at the same time, there is no need to process additional connecting parts, thus saving material costs and production time.

[0062] In addition, since the connection parts do not have the potential weaknesses of traditional connection methods, such as welding cracks, loose bolts, etc., they can maintain stable performance output for a long time and reduce failures and maintenance costs caused by connection failure.

[0063] In the present application, by surrounding the first gear ring 212 on the outside of the matching cylinder 211 and the second gear ring 242 on the outside of the matching column 241, the tooth matching diameter is large, the bending moment resistance is strong when engaged, and the two teeth are not prone to slippage or breakage at the meshing point. This clutch has strong ability to resist external impact in the engaged state and has high reliability.

[0064] Combination Figure 7 - Figure 8 As shown, according to the hydraulic coupling assembly 20 of some embodiments of the utility model, a plurality of liquid flow channels 28 distributed in sequence along the annular direction are formed between the inner wall of the mating cylinder 211 and the outer wall of the mating column 241, and they are respectively: a high-pressure channel 281, a low-pressure channel 282, a first regulating channel 283 and a second regulating channel 284.

[0065] The high-pressure channel 281 is used to connect the high-pressure end of the hydraulic device 30, and the low-pressure channel 282 is used to connect the low-pressure end of the hydraulic device 30. It should be noted that in this application, "high pressure" and "low pressure" are relative relationships of high and low hydraulic pressures, and no specific limitation is given to the hydraulic value at a certain point in the entire text. For example, the hydraulic pressure at the high-pressure end of the hydraulic device 30 is higher than the low-pressure end of the hydraulic device 30, the hydraulic pressure of the high-pressure channel mentioned below is higher than the hydraulic pressure of the low-pressure channel, and the hydraulic pressure of the high-pressure liquid mentioned below is higher than the hydraulic pressure of the low-pressure liquid.

[0066] like Figure 7As shown, the two sides of the high-pressure channel 281 in the annular direction are the first regulating channel 283 and the second regulating channel 284, respectively, and the two sides of the low-pressure channel 282 in the annular direction are the second regulating channel 284 and the first regulating channel 283, respectively. That is to say, in the clockwise direction, the upstream of the high-pressure channel 281 is the first regulating channel 283, and the downstream is the second regulating channel 284; in the clockwise direction, the upstream of the low-pressure channel 282 is the second regulating channel 284, and the downstream is the first regulating channel 283. Alternatively, in the counterclockwise direction, the upstream of the high-pressure channel 281 is the first regulating channel 283, and the downstream is the second regulating channel 284; in the counterclockwise direction, the upstream of the low-pressure channel 282 is the second regulating channel 284, and the downstream is the first regulating channel 283.

[0067] Combination Figure 7 , when the angular difference between the mating cylinder 211 and the mating column 241 is zero, the multiple fluid channels 28 are not connected to each other. Each fluid channel 28 remains independent and not connected to each other, ensuring the stability of the hydraulic system in a static state. At this time, the hydraulic coupling assembly 20 maintains the current state. Specifically, when the angular difference between the mating cylinder 211 and the mating column 241 is zero, the first gear ring 212 and the second gear ring 242 are disengaged, and the multiple fluid channels 28 are not connected to each other, maintaining the stability of the clutch separation state.

[0068] Combination Figure 8 When the matching cylinder 211 rotates to the first rotation angle α1 relative to the matching column 241, the high-pressure channel 281 is connected to the first regulating channel 283, and the low-pressure channel 282 is connected to the second regulating channel 284. Since the high-pressure channel 281 is used to connect the high-pressure end of the hydraulic device 30, when the matching cylinder 211 rotates to the first rotation angle α1 relative to the matching column 241, a high-pressure channel is formed in the first regulating channel 283. That is, the hydraulic medium at the high-pressure end can directly flow into the first regulating channel 283, and then the pressure is transmitted according to the requirements of the hydraulic coupling assembly 20. At the same time, since the low-pressure channel 282 is used to connect the low-pressure end of the hydraulic device 30, when the matching cylinder 211 rotates to the first rotation angle α1 relative to the matching column 241, a low-pressure channel is formed in the second regulating channel 284. That is, the hydraulic medium at the low-pressure end is guided to the second regulating channel 284, and then the pressure is transmitted according to the requirements of the hydraulic coupling assembly 20. Here, the range of the first rotation angle α1 can be specifically set according to actual needs.

[0069] Combination Fig. 9When the matching cylinder 211 rotates to the second rotation angle α2 relative to the matching column 241, the high-pressure channel 281 is connected to the second regulating channel 284, and the low-pressure channel 282 is connected to the first regulating channel 283. Since the high-pressure channel 281 is used to connect the high-pressure end of the hydraulic device 30, when the matching cylinder 211 rotates to the second rotation angle α2 relative to the matching column 241, a high-pressure channel is formed in the second regulating channel 284. Since the low-pressure channel 282 is used to connect the low-pressure end of the hydraulic device 30, when the matching cylinder 211 rotates to the second rotation angle α2 relative to the matching column 241, a low-pressure channel is formed in the first regulating channel 283. Here, the range of the second rotation angle α2 can be specifically set according to actual needs.

[0070] The multiple liquid flow channels 28 between the inner wall of the matching cylinder 211 and the outer wall of the matching column 241 of the present application are distributed and arranged in this way, so that when the matching cylinder 211 and the matching column 241 have different rotation angles, different feedback can be obtained through the pressure difference change of the first adjustment channel 283 and the second adjustment channel 284. That is, the rotation angle difference signal of the first coupling body 21 and the second coupling body 24 is converted into a hydraulic pressure difference signal.

[0071] Therefore, the hydraulic pressure difference signal can be used to control the hydraulic pressure difference between the first control liquid chamber 26 and the second control liquid chamber 27, thereby controlling the movement of the movable gear ring 213 to switch the clutch state. This signal conversion method can directly feed back the torque change at the left and right ends of the stabilizer bar when it is affected by the external environment to the angular difference between the mating cylinder 211 and the mating column 241, and finally control the movement of the movable gear ring 213 to switch the clutch from the disengaged state to the engaged state. This control method is direct and has high reliability.

[0072] It is understandable that the pressure difference change between the first regulating channel 283 and the second regulating channel 284, and how to control the hydraulic pressure difference between the first control liquid chamber 26 and the second control liquid chamber 27, involves the hydraulic control part. However, the hydraulic control part is not the protection point of this application, so how the pressure difference between the first regulating channel 283 and the second regulating channel 284 affects the first control liquid chamber 26 and the second control liquid chamber 27 is not limited or explained.

[0073] Of course, in order to facilitate understanding of the feasibility of the present application scheme, an example is listed here. Specifically, the first regulating channel 283 and the second regulating channel 284 are both connected to the hydraulically controlled one-way valve. The hydraulically controlled one-way valve includes: a first input port, a second input port and a high-pressure output port, the first input port is connected to the first regulating channel 283, the second input port is connected to the second regulating channel 284, the high-pressure output port is connected to the first input port and the second input port with the higher hydraulic pressure, and the high-pressure output port is connected to the second control liquid chamber 27. The structure of the hydraulically controlled one-way valve here is prior art and will not be described in detail here.

[0074] In this way, the matching cylinder 211 rotates to the first rotation angle α1 relative to the matching column 241, the first regulating channel 283 is a high-pressure channel, the second regulating channel 284 is a low-pressure channel, the high-pressure output port is connected to the first input port, and the second control liquid chamber 27 becomes a high-pressure chamber. At this time, the hydraulic pressure of the second control liquid chamber 27 is higher than the hydraulic pressure of the first control liquid chamber 26, driving the two gear rings to mesh, and the clutch is switched to the engaged state.

[0075] When the matching cylinder 211 rotates to the second rotation angle α2 relative to the matching column 241, the first regulating channel 283 is a low-pressure channel, the second regulating channel 284 is a high-pressure channel, the high-pressure output port is connected to the second input port, and the second control liquid chamber 27 becomes a high-pressure chamber. At this time, the hydraulic pressure of the second control liquid chamber 27 is higher than the hydraulic pressure of the first control liquid chamber 26, driving the two gear rings to mesh, and the clutch is switched to the engaged state.

[0076] On this basis, in some specific embodiments, the low-pressure end of the hydraulic device 30 is connected to the first control liquid chamber 26 and the second control liquid chamber 27 at the same time, and there is a driving member on the hydraulic coupling assembly 20 to drive the mobile gear ring 213 to move in the direction of disengaging from the fixed gear ring 243. When no high-pressure liquid flows into the second control liquid chamber 27 through the hydraulic control one-way valve, the first control liquid chamber 26 and the second control liquid chamber 27 are both kept in a low-pressure state, and the hydraulic pressure at both ends of the mobile gear ring 213 is balanced. At this time, the mobile gear ring 213 is kept in a disengaged state by the driving member. When the matching cylinder 211 has a certain range of angle difference relative to the matching column 241 (such as the first angle α1 and the second angle α2), high-pressure liquid flows into the second control liquid chamber 27 at the hydraulic control one-way valve, the first control liquid chamber 26 is still kept in a low-pressure state, and the hydraulic pressure in the second control liquid chamber 27 rises rapidly, and a hydraulic pressure difference is generated at both ends of the mobile gear ring 213. The hydraulic pressure difference overcomes the driving force of the driving member, and the mobile gear ring 213 is driven to switch to a combined state.

[0077] Once the mating cylinder 211 is restored to have no angular difference relative to the mating column 241, no high-pressure liquid flows into the second control liquid chamber 27 of the hydraulically controlled one-way valve any more, and the first control liquid chamber 26 remains in a low-pressure state. As the high-pressure liquid in the second control liquid chamber 27 slowly flows toward the low-pressure end of the hydraulic device 30, the second control liquid chamber 27 gradually returns to a low-pressure state, and the hydraulic pressures at both ends of the mobile gear ring 213 are balanced. At this time, the mobile gear ring 213 is driven by the driving member and switches to a disengaged state.

[0078] Furthermore, combined with the pipe diameter design of the inlet and outlet of the second control liquid chamber 27 (its inlet is connected to the high-pressure output port of the hydraulic control one-way valve, and its outlet is connected to the low-pressure end of the hydraulic device 30), or the flow resistance design of the inlet and outlet, when there is a certain range of angular difference between the matching cylinder 211 and the matching column 241, the second control liquid chamber 27 can quickly obtain high-pressure liquid through the hydraulic control one-way valve to increase the pressure, so that the clutch can be quickly switched to the engaged state when there is an angular difference. When the matching cylinder 211 is restored to have no angular difference relative to the matching column 241, the second control liquid chamber 27 slowly reduces the pressure through the low-pressure end of the hydraulic device 30, so that the clutch can be slowly switched to the disengaged state when there is no angular difference. In this way, the engagement speed and disengagement speed of the clutch can be different.

[0079] Of course, the above scheme can also be exchanged, that is, the hydraulically controlled one-way valve includes: a first input port, a second input port and a low-pressure output port, the first input port is connected to the first regulating channel 283, the second input port is connected to the second regulating channel 284, the low-pressure output port is connected to the first input port and the second input port, and the low-pressure output port is connected to the second control liquid chamber 27. The high-pressure end of the hydraulic device 30 is connected to the first control liquid chamber 26 and the second control liquid chamber 27 at the same time, and the hydraulic coupling assembly 20 has a driving member to drive the movable gear ring 213 to move in the direction of engaging with the fixed gear ring 243.

[0080] According to the hydraulic coupling assembly 20 of some embodiments of the present invention, there are at least two high-pressure channels 281 and they are distributed circumferentially at intervals, and the number of low-pressure channels 282 is the same as that of the high-pressure channels 281 and they are distributed alternately with the high-pressure channels 281 in the circumferential direction.

[0081] In this way, not only can the flow of the hydraulic medium be guaranteed, but also the pressure and power can be transmitted more evenly when the matching cylinder 211 rotates relative to the matching column 241.

[0082] Corresponding to the high-pressure channel 281, the number of low-pressure channels 282 is also the same as that of the high-pressure channel 281, and they are distributed alternately with the high-pressure channels 281 in the annular direction. This alternating distribution ensures the balance of the high-pressure channel 281 and the low-pressure channel 282 in the annular direction, avoiding system performance degradation or failure caused by uneven pressure distribution. At the same time, the low-pressure channel 282 serves as a channel for pressure release and hydraulic medium reflux, and its alternating distribution also helps to improve the overall stability and response speed of the hydraulic system.

[0083] In addition, the circumferentially spaced alternating distribution of the high pressure channels 281 and the low pressure channels 282 also makes the hydraulic coupling assembly 20 more compact and reasonable in structure. By optimizing the layout of the fluid flow channels 28, the integration and power density of the hydraulic system can be improved.

[0084] Combination Figure 7 - Fig. 9There are two high-pressure channels 281 circumferentially spaced apart. There are two low-pressure channels 282 circumferentially spaced apart. The low-pressure channels 282 and the high-pressure channels 281 are alternately spaced apart.

[0085] Each high-pressure channel 281 has a first regulating channel 283 disposed between the adjacent low-pressure channel 282 along the first direction, and a second regulating channel 284 disposed between the adjacent low-pressure channel 282 along the second direction. The first direction and the second direction are opposite in the annular direction.

[0086] First, the first regulating channel 283 and the second regulating channel 284 are located on different sides of the high-pressure channel 281 and the low-pressure channel 282, respectively, so that the hydraulic medium can adjust the pressure and flow through different paths during the flow process. This diversified adjustment method enhances the flexibility and adaptability of the system and can be accurately controlled according to the needs of the hydraulic coupling assembly 20.

[0087] Secondly, since the first direction and the second direction are opposite in the annular direction, the layout of the first regulating channel 283 and the second regulating channel 284 forms a staggered network structure, which improves the flow efficiency of the hydraulic medium and helps to reduce energy loss and pressure fluctuations during the flow process.

[0088] In some embodiments, in combination Figure 5 , Figure 7 - Fig. 9 The plurality of high-pressure channels 281 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20. The plurality of low-pressure channels 282 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20. The plurality of first regulating channels 283 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20. The plurality of second regulating channels 284 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20.

[0089] The centrally symmetrical layout ensures that the hydraulic coupling assembly 20 is subjected to balanced forces and consistent performance in all directions. Under various working conditions, the hydraulic coupling assembly 20 can maintain a stable operating state.

[0090] Secondly, the central symmetric layout simplifies the design and manufacturing process of the hydraulic coupling assembly 20. Since the various channels are structurally similar, a unified processing technology and assembly process can be used, reducing production costs and cycles. At the same time, this layout also helps to improve the interchangeability and maintainability of the components, facilitating rapid operation during maintenance and replacement.

[0091] In addition, since the forces of the various fluid channels 28 are balanced, the risk of damage due to stress concentration is reduced. At the same time, the uniform hydraulic pressure distribution also reduces the impact and vibration inside the hydraulic coupling assembly 20, extending the service life.

[0092] like Figure 4 As shown, according to some embodiments of the hydraulic coupling assembly 20 of the present invention, at least two grooves 2113 are arranged on the inner wall of the matching cylinder 211. The inner wall of the matching cylinder 211 between two adjacent grooves 2113 is a spacer 2114, part of the grooves 2113 constitutes a high-pressure channel 281, and part of the grooves 2113 constitutes a low-pressure channel 282.

[0093] These grooves 2113 not only provide channels for the flow of hydraulic medium, but also realize the division of high-pressure channels 281 and low-pressure channels 282 through their different configurations. Specifically, part of the grooves 2113 are configured as high-pressure channels 281 for transmitting high-pressure hydraulic medium, while another part of the grooves 2113 are configured as low-pressure channels 282 for returning low-pressure hydraulic medium or releasing pressure.

[0094] Combination Figure 7 When the relative rotation angle difference between the matching cylinder 211 and the matching column 241 is zero, the outer wall of the matching column 241 closes all the grooves 2113, and the outer wall of the matching column 241 fits tightly against the inner wall of the matching cylinder 211, thereby closing all the grooves 2113. This design ensures that in the absence of relative rotation, the hydraulic medium cannot flow through these grooves 2113, thereby maintaining the stable state of the system.

[0095] When the mating column 241 rotates relative to the mating cylinder 211, Figure 8 - Fig. 9 As shown, the outer wall of the mating column 241 will no longer completely close all the grooves 2113. As the angle difference increases, the high-pressure channel 281 and the low-pressure channel 282 will successively form an open or closed state with the outer wall of the mating column 241, thereby allowing the hydraulic medium to flow between the high-pressure channel 281 and the low-pressure channel 282. This flow process realizes the transmission and conversion of hydraulic energy.

[0096] In some embodiments, the high pressure channel 281 is connected to the first control liquid chamber 26 through the first regulating channel 283, and the low pressure channel 282 is connected to the second control liquid chamber 27 through the second regulating channel 284. Alternatively, the high pressure channel 281 is connected to the first control liquid chamber 26 through the second regulating channel 284, and the low pressure channel 282 is connected to the second control liquid chamber 27 through the first regulating channel 283.

[0097] like Figure 4As shown, according to some embodiments of the hydraulic coupling assembly 20 of the present utility model, the surfaces of the plurality of spacers 2114 facing the axis of the matching cylinder 211 are located on the same cylindrical surface, and the surfaces of the plurality of protrusions 2411 facing away from the axis of the matching cylinder 211 are located on the same cylindrical surface, and the diameters of the two cylindrical surfaces are equal. This design is not only simple in structure, but also convenient for sealing all the fluid flow channels 28 when there is no angular difference, and the matching of the cylindrical surfaces helps to improve the reliability of the rotation connection between the matching cylinder 211 and the matching column 241, which is conducive to ensuring the coaxiality of the two, and is conducive to the stabilizer bar device 100 to withstand the vibration and bumps during vehicle driving.

[0098] According to some embodiments of the present invention, the hydraulic coupling assembly 20 is combined with Figure 3 - Figure 4 The opening of each liquid flow channel 28 is arranged on the bottom wall 2115 of the cylinder and is distributed at intervals along the annular direction.

[0099] like Figure 5 As shown, these fluid channels 28 include: a high pressure channel 281, a low pressure channel 282, a first regulating channel 283 and a second regulating channel 284. The opening of the fluid channel 28 is arranged on the bottom wall 2115 of the cylinder, which is conducive to the smooth flow and effective management of the hydraulic medium.

[0100] First, when the matching cylinder 211 and the matching column 241 rotate relative to each other, the hydraulic medium can quickly enter or leave each liquid flow channel 28 through the opening on the bottom wall, thereby realizing the transmission and regulation of pressure. This design reduces the resistance and energy loss of the hydraulic medium during the flow process and improves the efficiency of the hydraulic system.

[0101] Secondly, the layout of the openings distributed at intervals along the annular direction ensures the uniformity and stability of the hydraulic medium during the flow process. Since the openings are evenly distributed in the annular direction, the hydraulic medium can flow in multiple directions at the same time, avoiding pressure fluctuations and instability caused by excessive or insufficient local flow. This design helps to maintain the smooth operation of the system and improves its ability to cope with various working conditions. In addition, the opening is set here so that the connecting pipe at the opening interferes with the housing 25, thereby improving the reliability of the connecting pipe connection.

[0102] In some embodiments, a sealing ring (not shown) is provided at the mating opening 2111 of the mating cylinder 211 to match the mating column 241. Optionally, a clamping ring (not shown) is provided at the mating opening 2111 of the mating cylinder 211 to match the mating column 241, and the clamping ring is used to limit the sealing ring.

[0103] like Fig.10 As shown, the hydraulic clutch stabilizer bar device 100 according to the second embodiment of the utility model comprises: a stabilizer bar assembly 10, a hydraulic coupling assembly 20, and a Figure 7 - Fig. 9 The stabilizer bar device 100 further includes a hydraulic device 30 .

[0104] The engagement and disengagement of the stabilizer bar assembly 10 is driven by the hydraulic coupling assembly 20. The hydraulic device 30 provides the necessary power.

[0105] like Fig.10 As shown, the stabilizer bar assembly 10 includes: a first rod body 101 and a second rod body 102. The first rod body 101 and the second rod body 102 are two independent rod bodies, and one end of the first rod body 101 and the second rod body 102 away from each other is connected to the suspension of the vehicle.

[0106] When the vehicle is in a stable driving state, the first rod body 101 and the second rod body 102 rotate freely relative to each other, and when there is no significant roll moment acting on the vehicle body, the first rod body 101 and the second rod body 102 will remain relatively still or slightly rotate relative to each other in the circumferential direction. At this time, they will not be involved with each other, and will not have a significant impact on the driving state of the vehicle. Therefore, the driver and passengers can enjoy a stable and comfortable riding experience.

[0107] Among them, the hydraulic coupling assembly 20 is the hydraulic coupling assembly 20 of the first aspect embodiment of the utility model, the bottom wall 2115 of the first coupling body 21 is connected to the first rod body 101 at one end of the bottom wall 2115, the second coupling body 24 is connected to the second rod body 102, and the infusion tube 31 of the hydraulic device 30 is connected to the hydraulic coupling assembly 20.

[0108] When the vehicle's driving state changes, such as when turning or driving on an uneven road, the vehicle body will generate a roll moment. At this time, the hydraulic device 30 delivers hydraulic medium to the hydraulic coupling assembly 20 through its fluid delivery pipe 31 to activate the operation of the hydraulic coupling assembly 20. As the hydraulic medium flows in the hydraulic coupling assembly 20, the interaction between the first coupling body 21 and the second coupling body 24 begins to increase.

[0109] Due to the design of the hydraulic coupling assembly 20, including the close fit between the spacer 2114 and the protrusion 2411 and the reasonable layout of the fluid channel 28, the hydraulic medium can quickly and effectively transmit pressure between the two. This pressure transmission causes the first coupling body 21 to be combined with the second coupling body 24, so that the first rod body 101 and the second rod body 102 are locked, and the stabilizer bar plays a role, thereby achieving the effect of preventing the vehicle from rolling.

[0110] When the roll moment decreases or disappears, the hydraulic coupling assembly 20 gradually reduces or stops restraining the two to restore the vehicle to a stable driving state.

[0111] The vehicle according to the embodiment of the third aspect of the utility model comprises: the stabilizer bar device 100 according to the embodiment of the second aspect of the utility model.

[0112] According to some embodiments of the present invention, the vehicle's handling stability and driving safety are improved by introducing the stabilizer bar device 100 .

[0113] When the vehicle encounters a roll risk or needs to enhance driving stability, the hydraulic device 30 responds by injecting hydraulic medium into the high-pressure channel 281 in the hydraulic coupling assembly 20. At this time, the matching cylinder 211 rotates to the first rotation angle α1 relative to the matching column 241. The high-pressure channel 281 is connected to the first adjustment channel 283, and the hydraulic medium flows into the first control liquid chamber 26 through the high-pressure channel 281 and the first adjustment channel 283, so that the hydraulic pressure P1 of the first control liquid chamber 26 is higher than the hydraulic pressure P2 of the second control liquid chamber 27. Then, the first gear ring 212 and the second gear ring 242 are driven to mesh, and the first rod body 101 and the second rod body 102 are locked, which effectively limits the roll amplitude of the vehicle and improves driving stability.

[0114] When the vehicle is in a stable state, the matching cylinder 211 rotates to the second rotation angle α2 relative to the matching column 241, and the high-pressure channel 281 is connected to the second regulating channel 284. At this time, the hydraulic medium is connected to the second control liquid chamber 27 through the high-pressure channel 281 and the second regulating channel 284, so that the hydraulic pressure P2 of the second control liquid chamber 27 is higher than the hydraulic pressure P1 of the first control liquid chamber 26, thereby pushing the first gear ring 212 and the second gear ring 242 away from each other, and the first rod body 101 and the second rod body 102 automatically rotate relative to each other. At this time, the first rod body 101 and the second rod body 102 will not be involved with each other, and will not have a significant impact on the driving state of the vehicle. Therefore, the driver and passengers can enjoy a stable and comfortable riding experience.

[0115] It is worth noting that the stabilizer bar device 100 according to the embodiment of the present application is not limited to the type of vehicle, which can be a fuel vehicle, a new energy vehicle or an extended range vehicle. The vehicle may also include a small car, an SUV, an MPV or a commercial vehicle.

[0116] The stabilizer bar device 100 is provided at the front end and / or the rear end of the vehicle.

[0117] The stabilizer bar device 100 is used to improve the riding comfort of the vehicle, and at the same time improve the handling stability and driving safety. It can be set on the front suspension or rear suspension of the vehicle alone, or on both at the same time. In the present invention, the stabilizer bar device 100 is applied to the front suspension of the vehicle as an example to explain its structure, and the application of the stabilizer bar device 100 to other positions will not be repeated.

[0118] Reference below Figure 1 - Fig.10The stabilizer bar device 100 according to the embodiment of the utility model is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description, and is not a specific limitation to the utility model.

[0119] Reference Fig.10 The stabilizer bar device 100 includes: a stabilizer bar assembly 10 , a hydraulic coupling assembly 20 and a hydraulic device 30 .

[0120] The stabilizer bar assembly 10 includes a first bar body 101 and a second bar body 102 .

[0121] Reference Figure 1 - Figure 3 The hydraulic coupling assembly 20 includes: a first coupling body 21 , a second coupling body 24 , a housing 25 , a first control liquid chamber 26 , a second control liquid chamber 27 , and a liquid flow channel 28 .

[0122] Reference Figure 3 - Figure 4 The first coupling body 21 includes: a matching cylinder 211 and a first gear ring 212 .

[0123] A mating cavity 2112 is formed in the mating cylinder 211. One axial end of the mating cylinder 211 is a cylinder bottom wall 2115 connected to the first rod body 101. The other axial end of the mating cylinder 211 forms a mating opening 2111. The first gear ring 212 is arranged around the mating cylinder 211 and is integrally formed on the outer peripheral surface of the mating cylinder 211.

[0124] Reference Figure 6 The second coupling body 24 includes a matching column 241 and a second gear ring 242. One axial end of the matching column 241 is connected to the second rod 102, and the other axial end of the matching column 241 is assembled in the matching cavity 2112 through the matching opening 2111. The second gear ring 242 is located outside the matching cylinder 211 and is arranged around the matching column 241.

[0125] Reference Figure 2 The housing 25 surrounds the outside of the first gear ring 212 and the second gear ring 242 .

[0126] The first gear ring 212 is a movable gear ring 213 , the second gear ring 242 is a fixed gear ring 243 , and the first gear ring 212 can move along the axial direction of the hydraulic coupling assembly 20 .

[0127] Reference Figure 2 A first control liquid chamber 26 is formed in the housing 25 between the first gear ring 212 and the second gear ring 242, and a second control liquid chamber 27 is formed on the side of the movable gear ring 213 away from the fixed gear ring 243, so as to drive the movable gear ring 213 to move axially when there is a hydraulic pressure difference between the first control liquid chamber 26 and the second control liquid chamber 27.

[0128] Reference Figure 5 A plurality of liquid flow channels 28 distributed in sequence along the annular direction are formed between the inner wall of the matching cylinder 211 and the outer wall of the matching column 241. The opening of each liquid flow channel 28 is arranged on the bottom wall 2115 of the cylinder and is distributed at intervals along the annular direction.

[0129] Reference Figure 7 - Fig. 9 The multiple liquid flow channels 28 are respectively: two high-pressure channels 281, two low-pressure channels 282, two first regulating channels 283 and two second regulating channels 284.

[0130] The high-pressure passage 281 is used to connect the high-pressure end of the hydraulic device 30 . The low-pressure passage 282 is used to connect the low-pressure end of the hydraulic device 30 .

[0131] The two circumferential sides of the high-pressure channel 281 are respectively the first regulating channel 283 and the second regulating channel 284 , and the two circumferential sides of the low-pressure channel 282 are respectively the second regulating channel 284 and the first regulating channel 283 .

[0132] When the rotation angle difference between the mating cylinder 211 and the mating column 241 is zero, the plurality of liquid flow channels 28 are not connected to each other.

[0133] When the mating cylinder 211 rotates to the first rotation angle α1 relative to the mating column 241 , the high-pressure channel 281 is communicated with the first regulating channel 283 , and the low-pressure channel 282 is communicated with the second regulating channel 284 .

[0134] When the mating cylinder 211 rotates to the second rotation angle α2 relative to the mating column 241 , the high-pressure channel 281 is communicated with the second regulating channel 284 , and the low-pressure channel 282 is communicated with the first regulating channel 283 .

[0135] There are at least two high-pressure channels 281 and they are spaced apart in the annular direction. The number of low-pressure channels 282 is the same as that of high-pressure channels 281 and they are alternately distributed in the annular direction.

[0136] Reference Figure 7 - Fig. 9 A first regulating channel 283 is arranged between each high-pressure channel 281 and the adjacent low-pressure channel 282 along the first direction, and a second regulating channel 284 is arranged between each high-pressure channel 281 and the adjacent low-pressure channel 282 along the second direction. The first direction and the second direction are opposite in the annular direction.

[0137] The two high-pressure channels 281 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20 .

[0138] The two low-pressure passages 282 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20 .

[0139] The two first regulating channels 283 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20 .

[0140] The two second adjustment channels 284 are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly 20 .

[0141] Reference Figure 4 At least two grooves 2113 are arranged on the inner wall of the matching cylinder 211 and are spaced apart along the circumferential direction. The inner wall of the matching cylinder 211 between two adjacent grooves 2113 is a spacer 2114. Some grooves 2113 constitute a high-pressure channel 281, and some grooves 2113 constitute a low-pressure channel 282.

[0142] Reference Figure 7 The matching column 241 includes: two protrusions 2411 and two partitions 2412. The two protrusions 2411 are arranged on the outer wall of the matching column 241, and the two protrusions 2411 are spaced apart along the circumferential direction, and a partition 2412 is formed between two adjacent protrusions 2411, and part of the partition 2412 constitutes the first adjustment channel 283, and part of the partition 2412 constitutes the second adjustment channel 284.

[0143] Reference Figure 7 When the rotation angle difference between the matching cylinder 211 and the matching column 241 is zero, the outer wall of the matching column 241 closes all the grooves 2113. Each protrusion 2411 is arranged opposite to a groove 2113, and each partition 2412 is arranged opposite to a partition block 2114.

[0144] The surfaces of the two spacers 2114 facing the axis of the matching tube 211 are located on the same cylindrical surface, and the surfaces of the two protrusions 2411 facing away from the axis of the matching tube 211 are located on the same cylindrical surface, and the diameters of the two cylindrical surfaces are equal.

[0145] Reference Figure 7-Figure 9 The fluid delivery pipe 31 of the hydraulic device 30 is connected to the hydraulic coupling assembly 20 .

[0146] Specifically, the high-pressure end of the hydraulic device 30 is connected to the high-pressure channel 281 through some infusion tubes 31 , and the low-pressure end of the hydraulic device 30 is connected to the low-pressure channel 282 through other infusion tubes 31 .

[0147] Other components of the hydraulically clutched stabilizer bar device according to the embodiment of the utility model, such as a vehicle, are known to those skilled in the art and will not be described in detail here.

[0148] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0149] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydraulic coupling assembly for a stabilizer bar, characterized in that: include: A first coupling body, the first coupling body comprises a matching cylinder and a first gear ring, a matching cavity is formed in the matching cylinder, two axial ends of the matching cylinder are a cylinder bottom wall and a matching opening respectively, and the first gear ring is arranged around the matching cylinder; A second coupling body, the second coupling body comprising a matching column and a second gear ring, the matching column is assembled in the matching cavity through the matching opening, and the second gear ring is located outside the matching cylinder and is arranged around the matching column; A housing, the housing at least surrounding the outer sides of the first gear ring and the second gear ring; Wherein, one of the first gear ring and the second gear ring is a fixed gear ring, and the other is a movable gear ring movable along the axial direction of the hydraulic coupling assembly; A first control fluid chamber is formed in the housing between the first gear ring and the second gear ring, and a second control fluid chamber is formed on the side of the movable gear ring away from the fixed gear ring, so as to drive the movable gear ring to move axially when there is a hydraulic pressure difference between the first control fluid chamber and the second control fluid chamber.

2. The hydraulic coupling assembly of the stabilizer bar according to claim 1, characterized in that: A plurality of liquid flow channels are formed between the inner wall of the matching cylinder and the outer wall of the matching column and are sequentially distributed along the annular direction, and are respectively: A high-pressure channel, used to connect the high-pressure end of the hydraulic device; A low-pressure channel, used for connecting the low-pressure end of the hydraulic device; a first regulating channel and a second regulating channel; Wherein, the two sides of the high-pressure channel in the annular direction are the first regulating channel and the second regulating channel respectively, and the two sides of the low-pressure channel in the annular direction are the second regulating channel and the first regulating channel respectively; When the rotation angle difference between the matching cylinder and the matching column is zero, the plurality of liquid flow channels are not connected to each other; When the matching cylinder rotates to a first rotation angle relative to the matching column, the high-pressure channel is communicated with the first regulating channel, and the low-pressure channel is communicated with the second regulating channel; When the mating cylinder rotates to a second rotation angle relative to the mating column, the high-pressure channel is communicated with the second regulating channel, and the low-pressure channel is communicated with the first regulating channel.

3. The hydraulic coupling assembly of the stabilizer bar according to claim 2, characterized in that: There are at least two high-pressure channels and they are spaced apart in the annular direction, and the number of the low-pressure channels is the same as that of the high-pressure channels and they are alternately distributed in the annular direction with the high-pressure channels; Each of the high-pressure channels has a first regulating channel disposed between the adjacent low-pressure channels along the first direction, and a second regulating channel disposed between the adjacent low-pressure channels along the second direction, and the first direction and the second direction are opposite in the annular direction.

4. The hydraulic coupling assembly of the stabilizer bar according to claim 3, characterized in that: The plurality of high-pressure channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly; The plurality of low-pressure channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly; The plurality of first regulating channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly; The plurality of second regulating channels are centrally symmetrically distributed relative to the axis of the hydraulic coupling assembly.

5. The hydraulic coupling assembly of the stabilizer bar according to claim 2, characterized in that: The inner wall of the matching cylinder is provided with at least two grooves spaced apart in the circumferential direction, the inner wall of the matching cylinder between two adjacent grooves is a spacer, part of the grooves constitutes the high-pressure channel, and part of the grooves constitutes the low-pressure channel; When the rotation angle difference between the matching cylinder and the matching column is zero, the outer wall of the matching column closes all the grooves.

6. The hydraulic coupling assembly of the stabilizer bar according to claim 5, characterized in that: At least two protrusions are arranged on the outer wall of the matching column and are spaced apart in the circumferential direction, and a groove is formed between two adjacent protrusions, part of the grooves constitute the first adjustment channel, and part of the grooves constitute the second adjustment channel; When the rotation angle difference between the matching tube and the matching column is zero, the protrusion is arranged opposite to the groove, and the partition groove is arranged opposite to the partition block.

7. The hydraulic coupling assembly of the stabilizer bar according to claim 6, characterized in that: The surfaces of the plurality of spacers facing the axis of the matching tube are located on the same cylindrical surface, the surfaces of the plurality of protrusions away from the axis of the matching tube are located on the same cylindrical surface, and the diameters of the two cylindrical surfaces are equal.

8. The hydraulic coupling assembly of the stabilizer bar according to claim 6, characterized in that: The opening of each liquid flow channel is arranged on the bottom wall of the cylinder and is distributed at intervals in the annular direction.

9. A hydraulically clutched stabilizer bar device, characterized in that: include: A stabilizer bar assembly, the stabilizer bar assembly comprising a first bar body and a second bar body; The hydraulic coupling assembly of the stabilizer bar according to any one of claims 1 to 8, wherein the cylinder bottom wall of the first coupling body is connected to the first rod body at one end of the cylinder bottom wall, and the second coupling body is connected to the second rod body; A hydraulic device, wherein a fluid delivery pipe of the hydraulic device is connected to the hydraulic coupling assembly.

10. A vehicle, characterized in that: include: A stabiliser bar arrangement according to any one of Claims 9.

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