Decoupling type torsion beam hydraulic bushing

Abstract

The utility model relates to the technical field of bushings, and discloses a decoupling type torsion beam hydraulic bushing which comprises a shell, an elastic body is fixedly connected in the shell, an inner shaft sleeve is fixedly connected in the elastic body, main sealing plates are symmetrically and fixedly connected to the upper end face and the lower end face of the shell, and detection rings are fixedly connected to the main sealing plates. The detection ring is arranged on the inner shaft sleeve in a sleeving mode, and faults can be early warned in advance through the whole device. The device can monitor the position relation between the inner shaft sleeve and the axis of the shell in real time, once it is found that the inner shaft sleeve and the axis of the shell are not located on the same axis any more, an alarm can be given out through an external early warning device, and therefore maintenance personnel or a vehicle owner can know the problem before the hydraulic bushing breaks down seriously and arrange maintenance or replacement in advance; the vehicle emergency situation caused by fault deterioration is avoided; the vehicle performance stability is improved; through continuous monitoring, it is ensured that the hydraulic bushing is in a normal working state all the time, and it is ensured that the damping effect, torsional rigidity and force transmission efficiency of the hydraulic bushing are maintained at design standards.

Description

Technical Field

[0001] This utility model relates to the field of bushing technology, specifically to a decoupled torsion beam hydraulic bushing. Background Technology

[0002] In the modern automotive industry, vehicle comfort, handling stability, and safety are crucial indicators of vehicle quality. The decoupled torsion beam hydraulic bushing, a key component of the automotive suspension system, plays an indispensable role. It mainly consists of an inner bushing, an elastomer, and a housing. Through the flow of internal hydraulic oil and the buffering effect of the elastomer, it effectively absorbs and dampens vibrations and impacts from the road surface, significantly improving ride comfort. It also plays a vital role in force transmission and maintaining the normal operation of the vehicle's suspension system.

[0003] However, under current technological conditions, there are no effective means to monitor the working condition of hydraulic bushings. During long-term use, hydraulic bushings are affected by complex road conditions, various forces during vehicle operation, and the aging of their own materials, which can cause the inner bushing and outer shell to no longer be aligned. This situation can lead to numerous problems, including decreased shock absorption, abnormal torsional stiffness, reduced force transmission efficiency, premature aging of the elastomer, accelerated wear of the inner bushing and outer shell, and increased risk of hydraulic system failure. These problems not only reduce vehicle comfort and handling performance but also pose potential safety hazards, seriously affecting the normal use of the vehicle.

[0004] However, due to the lack of effective monitoring methods, it is difficult to detect and maintain the hydraulic bushings in a timely manner when the aforementioned problems occur. Often, the hydraulic bushing malfunction is only discovered when the vehicle exhibits more obvious abnormalities, such as strong bumps during driving or abnormal steering. By this time, the fault has already caused damage to other vehicle components, increasing repair costs and difficulty, and also posing significant inconvenience and safety risks to vehicle users. Therefore, developing a technology that can effectively monitor the working status of hydraulic bushings is urgently needed and has important practical significance for improving overall vehicle performance and ensuring vehicle safety.

[0005] Therefore, we propose a decoupled torsion beam hydraulic bushing to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a decoupled torsion beam hydraulic bushing to solve the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a decoupled torsion beam hydraulic bushing, comprising a housing, an elastic body fixedly connected inside the housing, and an inner bushing fixedly connected inside the elastic body.

[0010] Preferably, the upper and lower ends of the outer shell are symmetrically and fixedly connected to a main sealing plate, and a detection ring is fixedly connected to the main sealing plate. The detection ring is sleeved on the inner bushing, and symmetrical grooves are opened on the detection ring.

[0011] Preferably, a shaft is fixedly connected inside the groove, and a displacement rod is rotatably connected to the shaft.

[0012] Preferably, a square plate is fixedly connected to the end of the displacement rod away from the shaft, and the square plate has a pressure relief hole.

[0013] Preferably, the square piece is provided with a sleeve, and a return spring is fixedly connected to the inner wall of the sleeve.

[0014] Preferably, a magnetic strip is fixedly connected to the upper surface of the square piece, and a Hall switch is fixedly connected inside the sleeve.

[0015] Preferably, the outer end face of the main sealing plate is fixedly connected with a fastener.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a decoupled torsion beam hydraulic bushing, which has the following advantages:

[0018] 1. This utility model, through its integrated device, can bring the following benefits to the overall operation:

[0019] Early warning of malfunctions: This device can monitor the positional relationship between the inner bushing and the outer casing axis in real time. Once it is found that the two are no longer on the same axis, an alarm can be issued through an external warning device. This allows maintenance personnel or vehicle owners to know about the problem before the hydraulic bushing has a serious malfunction, and arrange for repair or replacement in advance to avoid sudden vehicle conditions caused by the malfunction worsening.

[0020] Improve vehicle performance stability: Through continuous monitoring, ensure that the hydraulic bushing is always in normal working condition, and ensure that its shock absorption effect, torsional stiffness and force transmission efficiency are maintained at the design standard; during vehicle operation, the driver and passengers can always enjoy stable comfort and handling, and the vehicle performance will not fluctuate due to hydraulic bushing failure.

[0021] Extending component lifespan: Timely detection and resolution of misalignment between the inner bushing and the outer casing axis can ensure uniform stress distribution among the internal components of the hydraulic bushing, reducing unnecessary friction and stress concentration. This helps extend the service life of the hydraulic bushing and related suspension components, improving the overall durability of the vehicle.

[0022] 2. The design of this utility model, through the displacement rod, square plate, pressure relief hole, and sleeve, brings the following benefits to the overall operation:

[0023] Enhanced cushioning performance: In addition to the cushioning mechanism of the hydraulic bushing itself, the aqueous solution inside the bushing provides additional cushioning. When the vehicle encounters bumpy roads and the hydraulic bushing is compressed, the aqueous solution can absorb and disperse some of the impact force through its own fluidity and incompressibility, further reducing the vibration transmitted to other parts of the vehicle, significantly improving the vehicle's shock absorption effect, and bringing a smoother and more comfortable experience to the driver and passengers;

[0024] The functions complement each other: the sliding fit between the displacement rod and the sleeve is used to monitor whether the inner bushing and the outer shell axis are aligned, providing a fault warning; while the aqueous solution in the sleeve focuses on auxiliary buffering; these two different functions are independent of each other but work together to ensure real-time monitoring of the working status of the hydraulic bushing and enhance its buffering performance, so that the whole device can play a more comprehensive role in vehicle operation.

[0025] Optimized space utilization: Integrating monitoring and auxiliary buffer functions into a single structure makes full use of limited space. For the compact suspension system layout of a vehicle, this integrated design avoids the need for additional complex buffer devices or monitoring equipment that would occupy too much space, thus contributing to the compactness and rationality of the overall vehicle structure. Attached Figure Description

[0026] Figure 1 This is a half-sectional view of the outer shell and elastomer of this utility model;

[0027] Figure 2 This is a cross-sectional view of the fastener of this utility model;

[0028] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0029] Figure 4 This is a structural disassembly diagram of the present utility model;

[0030] Figure 5 This is a view of the present utility model.

[0031] In the picture:

[0032] 1. Outer shell; 2. Elastomer; 3. Inner bushing; 4. Main sealing plate; 5. Detection ring; 6. Groove; 7. Shaft; 8. Displacement rod; 9. Square plate; 10. Pressure relief hole; 11. Sleeve; 12. Return spring; 13. Magnetic strip; 14. Hall switch; 15. Fastening component. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0035] Example

[0036] Please refer to Figures 1 to 5 As shown:

[0037] A decoupled torsion beam hydraulic bushing includes a housing 1, an elastic body 2 fixedly connected inside the housing 1, an inner bushing 3 fixedly connected inside the elastic body 2, a main sealing plate 4 symmetrically fixedly connected to the upper and lower ends of the housing 1, a detection ring 5 fixedly connected to the main sealing plate 4, the detection ring 5 being sleeved on the inner bushing 3, the detection ring 5 having symmetrically opened grooves 6, a shaft 7 fixedly connected inside the grooves 6, a displacement rod 8 rotatably connected to the shaft 7, a square plate 9 fixedly connected to the end of the displacement rod 8 away from the shaft 7, a pressure relief hole 10 opened on the square plate 9, a sleeve 11 being sleeved over the square plate 9, a return spring 12 fixedly connected to the inner wall of the sleeve 11, a magnetic strip 13 fixedly connected to the upper surface of the square plate 9, a Hall switch 14 fixedly connected inside the sleeve 11, and a fastening element 15 fixedly connected to the outer end face of the main sealing plate 4.

[0038] in:

[0039] Elastomer 2 contains a buffer solution.

[0040] Shaft 7 is used for the lateral rotation of displacement rod 8.

[0041] Sleeve 11 contains a buffer solution.

[0042] The magnetic strip 13 is used in conjunction with the Hall switch 14; the magnetic strip 13 and the Hall switch 14 are a group, and there are four groups in this design, which are symmetrically arranged, and the four Hall switches 14 belong to the same circuit; when the magnetic strip 13 and the Hall switch 14 overlap, the Hall switch 14 will be energized. Only when all four Hall switches 14 are energized will the axis of the outer shell 1 and the inner bushing 3 be located on the same axis and no deformation occurs.

[0043] Working principle:

[0044] In the initial state: the elastic body 2 contains an aqueous solution, the reset spring 12 is not compressed, and the magnetic strip 13 and the Hall switch 14 are on the same vertical plane.

[0045] When in use, if the inner bushing 3 and the outer shell 1 are about to change position under the action of external force, the elastic body 2 can be used as a buffer.

[0046] Furthermore, when the inner bushing 3 and the outer shell 1 are about to change position under the action of external force, the detection ring 5 sleeved on the inner bushing 3 will move accordingly. During this process, the detection ring 5 will slide inside the sleeve 11 with the square piece 9 and the magnetic strip 13 through the displacement rod 8 on the shaft 7. During this sliding process, the aqueous solution in the sleeve 11 will enter the inner cavity opened by the displacement rod 8 through the pressure relief hole 10, thereby performing buffering work.

[0047] Furthermore, if the inner bushing 3 and the outer shell 1 are damaged, and the axes of the inner bushing 3 and the outer shell 1 are no longer on the same axis, the detection ring 5 sleeved on the inner bushing 3 will indirectly cause the magnetic strip 13 to no longer be on the same vertical plane as the Hall switch 14 through the square piece 9 fixedly connected to the displacement rod 8.

[0048] Furthermore, it is known that the magnetic strip 13 is used in conjunction with the Hall switch 14; the magnetic strip 13 and the Hall switch 14 form a group, and this design has a total of four groups, symmetrically arranged, and the four Hall switches 14 belong to the same circuit; when the magnetic strip 13 and the Hall switch 14 overlap, the Hall switch 14 will be energized. Only when all four Hall switches 14 are energized will the axis of the outer shell 1 and the inner bushing 3 be located on the same axis without deformation. Therefore, when the axis of the inner bushing 3 and the outer shell 1 are no longer on the same axis, the external warning device will issue a warning.

[0049] Furthermore, the integrated device can provide early warning of malfunctions. The device can monitor the positional relationship between the inner bushing 3 and the outer casing 1 in real time. Once it is found that the two are no longer on the same axis, an alarm can be issued through an external warning device. This allows maintenance personnel or vehicle owners to know about the problem before the hydraulic bushing malfunctions and arrange for repair or replacement in advance to avoid sudden vehicle conditions caused by the deterioration of the malfunction.

[0050] Improve vehicle performance stability: Through continuous monitoring, ensure that the hydraulic bushing is always in normal working condition, and ensure that its shock absorption effect, torsional stiffness and force transmission efficiency are maintained at the design standard; during vehicle operation, the driver and passengers can always enjoy stable comfort and handling, and the vehicle performance will not fluctuate due to hydraulic bushing failure.

[0051] Extending component lifespan: Timely detection and resolution of misalignment between the inner bushing 3 and the outer casing 1 can ensure uniform stress distribution among the internal components of the hydraulic bushing, reducing unnecessary friction and stress concentration; this helps extend the service life of the hydraulic bushing and related suspension components, improving the overall durability of the vehicle.

[0052] Furthermore, the design of the displacement rod 8, square plate 9, pressure relief hole 10, and sleeve 11 enhances the overall buffering performance. Based on the inherent buffering mechanism of the hydraulic bushing, the aqueous solution within the sleeve 11 provides additional buffering. When the vehicle encounters bumpy roads and the hydraulic bushing is compressed, the aqueous solution, through its fluidity and incompressibility, absorbs and disperses some of the impact force, further reducing vibrations transmitted to other vehicle components, significantly improving the vehicle's shock absorption effect, and providing a smoother and more comfortable experience for passengers.

[0053] The functions complement each other: the sliding fit between the displacement rod 8 and the sleeve 11 is used to monitor whether the axis of the inner bushing 3 and the outer shell 1 coincides, providing a fault warning; while the aqueous solution in the sleeve 11 focuses on auxiliary buffering; these two different functions are independent of each other and work together to ensure real-time monitoring of the working status of the hydraulic bushing and enhance its buffering performance, so that the whole device can play a more comprehensive role in vehicle operation.

[0054] Optimized space utilization: Integrating monitoring and auxiliary buffer functions into a single structure makes full use of limited space. For the compact suspension system layout of a vehicle, this integrated design avoids the need for additional complex buffer devices or monitoring equipment that would occupy too much space, thus contributing to the compactness and rationality of the overall vehicle structure.

[0055] Please refer to the above work process. Figures 1 to 5 .

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A decoupled torsion beam hydraulic bushing comprising a housing (1), characterized in that: The shell (1) is fixedly connected with an elastic body (2), and the elastic body (2) is fixedly connected with an inner shaft sleeve (3) internally.

2. The decoupled torsion beam hydraulic bushing of claim 1, wherein: The upper and lower end faces of the shell (1) are fixedly connected with main sealing plates (4) symmetrically, the main sealing plates (4) are fixedly connected with detection rings (5), the detection rings (5) are sleeved on the inner shaft sleeve (3), and the detection rings (5) are symmetrically provided with recessed openings (6).

3. The decoupled torsion beam hydraulic bushing of claim 2, wherein: The recessed openings (6) are fixedly connected with shaft rods (7), and the shaft rods (7) are rotatably connected with displacement rods (8).

4. The decoupled torsion beam hydraulic bushing of claim 3, wherein: One end of the displacement rod (8) away from the shaft rod (7) is fixedly connected with a square piece (9), and the square piece (9) is provided with a force relief hole (10).

5. The decoupled torsion beam hydraulic bushing of claim 4, wherein: The square piece (9) is sleeved with a sleeve (11), and the inner cavity wall of the sleeve (11) is fixedly connected with a reset spring (12).

6. The decoupled torsion beam hydraulic bushing of claim 5, wherein: The upper surface of the square piece (9) is fixedly connected with a magnetic stripe (13), and the sleeve (11) is fixedly connected with a Hall switch (14).

7. The decoupled torsion beam hydraulic bushing of claim 2, wherein: The outer end face of the main sealing plate (4) is fixedly connected with a buckling piece (15).

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