Suspension device for commercial vehicle transfer case

Abstract

The utility model discloses a suspension device for a commercial vehicle transfer case. Two center shafts of the transfer case are obliquely arranged to be matched with the ground clearance and the width of a small-tonnage vehicle type. The left bracket assembly and the right bracket assembly are symmetrically arranged and are respectively fixed on the left side and the right side of the transfer case; the left support assembly and the right support assembly are fixed to the outer side of a left longitudinal beam and the inner side of a right longitudinal beam of the frame through detachable connecting pieces respectively and used for being matched with the width of a small-tonnage frame. The vibration reduction component comprises an upper vibration reduction pad assembly and a lower vibration reduction pad assembly which are stacked up and down, and is assembled and connected with the corresponding bracket assembly through a rigid base plate and a sleeve; the triangular supporting structure is composed of a bearing bracket assembly, a supporting column pipe assembly and a rear bracket assembly, and the supporting column pipe assembly is connected with the bearing bracket assembly and the rear bracket assembly through flexible connecting pieces to stably support the transfer case; the rear bracket assembly is fixed to the lower wing face of the left side of the frame through a suspension base plate, and the rear bracket assembly and the supporting column pipe assembly jointly limit pitching displacement of the transfer case.

Description

TECHNICAL FIELD

[0001] The utility model relates to commercial vehicle distributor suspension device technical field more specifically relates to a kind of commercial vehicle distributor suspension device. BACKGROUND

[0002] The existing commercial vehicle distributor is mainly used in heavy four-wheel drive vehicle, and the two center shafts thereof are usually arranged vertically, and the suspension structure is fixed to the inner side of the vehicle frame. With the increasing demand for small-tonnage four-wheel drive vehicles in the market, the width of the vehicle frame is reduced and the ground clearance is also reduced. The traditional distributor is difficult to meet the layout requirements of small-tonnage vehicles due to its large center distance and slender shape. In order to control the ground clearance, the distributor needs to use two center shafts arranged at an angle. However, this design leads to an increase in the width of the transfer case. If the traditional suspension structure is used, there is not enough space for installation on the inner side of the vehicle frame, which leads to complex bracket design and low assembly efficiency. In addition, the vehicle may sway during driving due to insufficient support, which affects the stability of the drive shaft.

[0003] Current related patent technologies mainly focus on the suspension optimization of heavy vehicles, and lack of adaptive solutions for small-tonnage vehicles. Therefore, there is an urgent need for a distributor suspension device that is compact, highly versatile and can effectively suppress vibration. SUMMARY

[0004] The main purpose of the utility model is to provide a commercial vehicle distributor suspension device and method to solve the problem of difficult layout of the transfer case with two center shafts arranged at an angle on small-tonnage vehicles in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A commercial vehicle distributor suspension device, comprising:

[0007] The distributor has two center shafts arranged at an angle to adapt to the ground clearance and width of small-tonnage vehicles.

[0008] The left bracket assembly and the right bracket assembly are symmetrically arranged and fixed to the left and right sides of the distributor respectively.

[0009] The left bracket assembly and the right bracket assembly are fixed to the outer side of the left longitudinal beam and the inner side of the right longitudinal beam of the vehicle frame respectively through detachable connecting pieces to adapt to the width of small-tonnage vehicle frames.

[0010] The damping assembly includes an upper damping pad assembly and a lower damping pad assembly stacked vertically and connected to the corresponding bracket assembly through a rigid pad and a sleeve.

[0011] The triangular support structure is composed of a bearing bracket assembly, a strut pipe assembly and a rear bracket assembly. The strut pipe assembly is connected to the bearing bracket assembly and the rear bracket assembly through flexible connecting pieces to provide stable support for the distributor.

[0012] The rear bracket assembly is fixed to the left lower wing surface of the frame through the suspension pad and cooperates with the strut pipe assembly to limit the pitch displacement of the transfer case.

[0013] In some embodiments, the left bracket assembly and the right bracket assembly are respectively fixed to the frame through the toothed flange surface bolt and nut to prevent connection loosening.

[0014] In some embodiments, in the damping assembly, the sleeve is clamped between the pad and the bracket assembly to disperse assembly stress.

[0015] In some embodiments, in the triangular support structure, the strut pipe assembly is connected to the bearing bracket assembly and the rear bracket assembly through the toothed flange surface bolt and nut.

[0016] In some embodiments, the suspension pad is an adjustable structure for adapting to the shape and height difference of the lower wing surface of the frame.

[0017] In some embodiments, the arrangement angle of the tilt center axis of the transfer case is dynamically adjusted according to the frame width and the ground clearance requirement.

[0018] In some embodiments, the suspension device adopts a modular design, and the general part coverage rate is ≥80%, which adapts to the arrangement requirements of transfer cases of different vehicle models.

[0019] In some embodiments, the flexible connecting piece includes a rubber bearing and a U-shaped bearing clamp for absorbing vibration energy when the transmission shaft is working.

[0020] In some embodiments, the left bracket assembly and the bearing bracket assembly are detachably connected through the toothed flange surface bolt, which is convenient for maintenance and part replacement.

[0021] In some embodiments, a buffer layer is arranged between the rear bracket assembly and the suspension pad, further reducing vibration transmission.

[0022] The utility model has the beneficial effects compared with prior art:

[0023] Improved adaptability: through the design of the outer side bracket arrangement and the tilt shaft of the transfer case, the space limitation of the small tonnage frame is broken through;

[0024] Stability enhancement: the triangular support structure suppresses the swing of the transfer case and reduces the interference on the work of the transmission shaft;

[0025] Generalization optimization: the modular design makes the general part coverage rate ≥80%, reducing the cost of vehicle model adaptation and modification;

[0026] High damping efficiency: the multilayer damping pad and the flexible connecting piece cooperate to absorb vibration, prolonging the service life of the parts. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the arrangement structure view of the differential and the suspension device on the frame for the utility model;

[0028] Figure 2 It is the exploded view of the arrangement structure of the differential and the suspension device for the utility model;

[0029] Figure 3 It is the arrangement structure sectional view of the differential suspension rubber pad for the utility model;

[0030] Figure 4 It is the arrangement front view of the differential and the suspension device on the frame for the utility model;

[0031] Figure 5 It is the arrangement plan view of the differential and the suspension device on the frame for the utility model. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described in more detail below with reference to the drawings of the preferred embodiments of the present application. In the drawings, the same or similar notations represent the same or similar parts or parts having the same or similar functions throughout. The described embodiments are some of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] The embodiments of the present application will be described in detail below with reference to the drawings.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] Furthermore, the terms "comprising" and "including" and any variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, system, product or device that comprises a list of steps or elements not merely consists solely of those steps or elements but can include additional steps or elements not expressly listed or inherent to such process, method, product or device.

[0037] The following will be described in detail Figures 1-5 A commercial vehicle suspension device for a transfer case is described in detail in the embodiments of the present application. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0038] Embodiment 1:

[0039] Referring to Figures 1-5 As shown in the figure, a commercial vehicle suspension device for a transfer case includes a transfer case 11, a left bracket assembly 13, a right bracket assembly 9, a left support assembly 14, a right support assembly 7, a pad 3, an upper damping pad assembly 4, a lower damping pad assembly 8, a bearing bracket assembly 20, a rubber bearing 22, a U-shaped bearing clamp 19, a strut pipe assembly 18, a rear bracket assembly 23, and a suspension pad 24.

[0040] The left bracket assembly 13 and the right bracket assembly 9 are fixed to the left and right sides of the transfer case respectively through the second hexagonal flange bolt 10.

[0041] The pad 3, the upper damping pad assembly 4, the right support assembly 7, the lower damping pad assembly 8, and the right bracket assembly 9 are assembled in order from top to bottom; the sleeve pipe 5 is clamped between the installation surface of the pad 3 and the right bracket assembly 9, the hexagonal head bolt 12 passes through the installation hole of the above-mentioned parts, and the above-mentioned parts are connected together through the type 2 hexagonal nut 1 and the flat washer 2, and the damping effect is achieved through the upper and lower damping pad assemblies.

[0042] The right support assembly 7 is fixed to the inner side of the right longitudinal beam of the vehicle frame through the first hexagonal flange bolt 6 and the first hexagonal flange nut 15.

[0043] The pad 3, the upper damping pad assembly 4, the left support assembly 14, the lower damping pad assembly 8, and the left bracket assembly 13 are assembled in order from top to bottom; the sleeve pipe 5 is clamped between the installation surface of the pad 3 and the left bracket assembly 13, the hexagonal head bolt 12 passes through the installation hole of the above-mentioned parts, and the above-mentioned parts are connected together through the type 2 hexagonal nut 1 and the flat washer 2, and the damping effect is achieved through the upper and lower damping pad assemblies.

[0044] As a further improvement of the present application, the left support assembly 14 is fixed to the outer side of the left longitudinal beam of the vehicle frame through the first hexagonal flange bolt 6 and the first hexagonal flange nut 15.

[0045] As further improvement of the utility model, the mounting hole of the connecting bearing bracket assembly 20 is arranged on the left bracket assembly 13, and the bearing bracket assembly 20 is fixed on the left bracket assembly 13 through the second hexagonal flange toothed nut 16 and the third hexagonal flange toothed bolt 17.

[0046] The rubber bearing 22 is sleeved on the bearing bracket assembly 20 through the U-shaped bearing clamp 19, and the strut pipe assembly 18 is fixed together through the fourth hexagonal flange toothed bolt 21 and the second hexagonal flange toothed nut 16 passing through the U-shaped bearing clamp 19.

[0047] Similarly, the rubber bearing 22 is sleeved on the rear bracket assembly 23 through the U-shaped bearing clamp 19, and the strut pipe assembly 18 is fixed together through the fourth hexagonal flange toothed bolt 21 and the second hexagonal flange toothed nut 16 passing through the U-shaped bearing clamp 19.

[0048] The rear bracket assembly 23 is fixed to the left lower wing surface of the vehicle frame through the suspension pad 24 using the fifth hexagonal flange toothed bolt 25 and the second hexagonal flange toothed nut 16; at this time, the suspension forms a stable 'triangle' support, and also plays a damping role.

[0049] The utility model discloses a kind of two center shafts, which are arranged in inclined manner, and the layout difficulty problem of transfer case on small tonnage vehicle model is solved.

[0050] The structure is designed by modularization, increases the coverage of general parts, reduces the support structure change caused by frame and assembly arrangement, improves vehicle assembly consistency; left support assembly is changed from inside of frame to outside of frame, realizes the feasibility of transfer case chassis arrangement of small tonnage vehicle model, reduces support structure design complexity; simultaneously, 'triangle' support structure is adopted, controls vehicle shaking in work, reduces the influence on transmission shaft work, is stable and reliable in long-term use, reduces maintenance cost.

[0051] For different vehicle models, only need to adjust the specification of suspension pad or the inclination angle of transfer, the rest modular components can be directly reused, and the coverage of general parts is more than 80%.

[0052] The above only for the preferred embodiment of the utility model has been described, and is used to limit the utility model, any modification, equivalent replacement and improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A suspension device for a commercial vehicle transfer case, characterized by, The application relates to a kind of dynamic axle suspension structure of truck, comprising: A differential (11) is arranged with two inclined center axes to adapt to the ground clearance and width of small tonnage vehicles; A left bracket assembly (13) and a right bracket assembly (9) are symmetrically arranged and fixed to the left and right sides of the differential (11); A left support assembly (14) and a right support assembly (7) are fixed to the outer side of the left longitudinal beam and the inner side of the right longitudinal beam of the vehicle frame through detachable connecting members to adapt to the width of the small tonnage vehicle frame; A damping assembly includes an upper damping pad assembly (4) and a lower damping pad assembly (8) stacked one above the other, which are connected with the corresponding bracket assemblies through rigid pads (3) and sleeves (5); A triangular support structure is formed by a bearing bracket assembly (20), a strut pipe assembly (18) and a rear bracket assembly (23), the strut pipe assembly (18) is connected with the bearing bracket assembly (20) and the rear bracket assembly (23) through flexible connecting members to form stable support for the differential; The rear bracket assembly (23) is fixed to the left lower wing surface of the vehicle frame through a suspension pad (24) and restricts the pitch displacement of the differential together with the strut pipe assembly (18).

2. The suspension device of claim 1, wherein The left support assembly (14) and the right support assembly (7) are fixed to the vehicle frame through toothed flange surface bolts and nuts to prevent connection loosening.

3. The suspension device of claim 1, wherein In the damping assembly, the sleeve (5) is clamped between the pad (3) and the bracket assembly to disperse assembly stress.

4. The suspension device of claim 1, wherein In the triangular support structure, the strut pipe assembly (18) is connected to the bearing bracket assembly (20) and the rear bracket assembly (23) through toothed flange surface bolts and nuts.

5. The suspension device of claim 1, wherein The suspension pad (24) is an adjustable structure for adapting to the shape and height difference of the lower wing surface of the vehicle frame.

6. The suspension device of claim 1, wherein The inclination angle of the inclined center axes of the differential (11) is dynamically adjusted according to the width and ground clearance requirements of the vehicle frame.

7. The suspension device of claim 1, wherein The flexible connecting members include rubber bearings (22) and U-shaped bearing clamps (19) for absorbing vibration energy during operation of the transmission shaft.

8. The suspension device of claim 7, wherein The strut pipe assembly (18) is fixed through the U-shaped bearing clamp (19) by the fourth hexagonal flange toothed bolt (21) and the second hexagonal flange toothed nut (16).

9. The suspension device of claim 1, wherein The left bracket assembly (13) and the bearing bracket assembly (20) are detachably connected through toothed flange surface bolts for easy maintenance and component replacement.

10. The suspension device of claim 1, wherein A buffer layer is arranged between the rear bracket assembly (23) and the suspension pad (24).

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