Cab suspension assembly and vehicle

Abstract

The application provides a cab suspension assembly and a vehicle. The cab suspension assembly comprises a lifting guide mechanism and a turnover mechanism. The lifting guide mechanism comprises a guide frame and a supporting frame connected to the guide frame. The guide frame is rotationally arranged relative to a vehicle chassis. The supporting frame and the turnover mechanism are used for carrying a cab. The turnover mechanism has a top contact force towards the cab. The guide frame comprises a front end portion and a guide portion arranged at the front end portion. The guide portion is used for guiding the guide frame to move the supporting frame upwards. In this way, when the guide frame is hit, the guide frame will move the supporting frame upwards under the guidance of the guide portion. Moreover, the energy generated by the collision can be timely buffered and absorbed, so as to reduce the damage caused by the collision.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a cab suspension assembly and a vehicle. Background Technology

[0002] With the rapid development of the automotive industry and the improvement of people's living standards, there are higher requirements for the all-round performance of vehicles, and vehicle safety performance is a key concern for customers. Due to their large load capacity and the close proximity of the cargo box to the cab, cargo vehicles are prone to cab compression in the event of a frontal collision. As a crucial connecting mechanism for the cab, the cab suspension directly bears the impact in most severe collisions. Because of the characteristics and design principles of cargo vehicle cab suspension structures, the cab and suspension structure are not allowed to detach from the chassis during a collision. Therefore, suspension brackets are usually designed with high strength. This can lead to the collision energy not being absorbed in time and being completely transferred to the cab, causing the cab to move backward and be compressed. During this process, the cab floor can be penetrated by sharp parts from the engine or chassis, further compressing the survival space and causing serious injuries or fatalities.

[0003] Therefore, it is necessary to provide an improved cab suspension assembly to solve some or all of the above problems. Summary of the Invention

[0004] This application provides a highly safe cab suspension assembly and vehicle.

[0005] This application provides a cab suspension assembly, including a lifting mechanism and a tilting mechanism; the lifting mechanism includes a guide frame and a support frame connected to the guide frame; the guide frame is rotatably disposed relative to the vehicle chassis, the support frame and the tilting mechanism are used to support the cab, and the tilting mechanism has a pushing force toward the cab; the guide frame includes a front end and a guide portion disposed at the front end; the guide portion is used to guide the guide frame to move the support frame upward.

[0006] Furthermore, the guide frame includes a lower buffer end and an upper hinge end connected to the support frame; the guide portion extends from the upper hinge end to the lower buffer end; in the front-rear direction of the guide frame, the lower buffer end is located behind the upper hinge end.

[0007] Furthermore, the guide portion is in the shape of a straight edge, and the inclination angle A of the guide portion relative to the front-rear direction of the guide frame is not greater than 80 degrees and not less than 50 degrees; or

[0008] The guide portion has an arc-shaped edge and protrudes outward along the guide frame from back to front.

[0009] Furthermore, the lifting mechanism includes a buffer bushing, and the guide frame includes a buffer block protruding downward from the lower buffer end; the buffer block is detachably disposed on the buffer bushing.

[0010] Furthermore, the guide frame includes a guide bracket and a central connecting bracket extending rearward from the guide bracket; the lifting mechanism includes a fixed bracket that can be fixed to the vehicle chassis; the support frame is hinged to the guide bracket, and the end of the central connecting bracket is hinged to the fixed bracket.

[0011] Furthermore, the lifting mechanism includes a synchronous shaft tube, a first lifting mechanism, and a second guiding mechanism; one end of the synchronous shaft tube is fixed to the first lifting mechanism, and the other end is fixed to the second guiding mechanism.

[0012] Furthermore, the tilting mechanism includes a fixed component and a support frame rotatably connected to the fixed component; the support frame is used to support the cab and is movably connected to the cab; the support frame always has a tendency to rotate toward the cab, and the rotation direction of the support frame is opposite to the rotation direction of the guide frame.

[0013] Furthermore, the fixing assembly includes a connecting bracket and a force storage member disposed on the connecting bracket, the lifting mechanism includes a buffer bushing; the support frame is connected to the force storage member, and the force storage member provides the support frame with a driving force for rotation toward the cab; the buffer bushing is engaged with the connecting bracket.

[0014] Furthermore, the energy storage component is a rod-shaped structure, and the energy storage component includes a first energy storage component and a second energy storage component; the connecting bracket includes a first connecting bracket and a second connecting bracket; the first energy storage component and the second energy storage component are both connected between the first connecting bracket and the second connecting bracket.

[0015] This application also provides a vehicle, including a cab, a vehicle chassis, and a cab suspension assembly as described above, wherein the support frame is fixed to the cab, and the guide frame is rotatably disposed with respect to the vehicle chassis.

[0016] Compared with existing technologies, the cab suspension assembly of this application, by setting a guide part at the front end of the guide frame, allows the guide frame to move upward under the guidance of the guide part when the guide frame is impacted. This also effectively buffers and absorbs the energy generated by the collision, thereby reducing the damage caused by the impact. Furthermore, when the support frame carries the cab and the guide frame is impacted, the guide frame and support frame will lift the cab upward, preventing the cab from simply moving backward and compressing it upon impact, thus improving the safety of the cab and protecting the personal safety of the driver.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0019] Figure 1 This is a perspective view of the cab suspension assembly of this application.

[0020] Figure 2 yes Figure 1 Top view of the cab suspension assembly.

[0021] Figure 3 yes Figure 1 Front view of the cab suspension assembly.

[0022] Figure 4 yes Figure 1 Side view of the cab suspension assembly in its initial state.

[0023] Figure 5 yes Figure 4 A magnified view of a section at point B.

[0024] Figure 6 yes Figure 4 Side view of the cab suspension assembly when it is subjected to a collision.

[0025] Figure 7 yes Figure 6 Side view of the cab suspension assembly after a further impact.

[0026] Figure 8 yes Figure 1 A 3D view of the lift mechanism in the cab suspension assembly.

[0027] Figure 9 yes Figure 1 A perspective view of the tilting mechanism in the cab suspension assembly.

[0028] Reference numerals: 10-Cab suspension assembly; 1-Lifting mechanism; 11-Guide frame; 111-Front end; 112-Guide section; 113-Lower buffer end; 114-Upper hinge end; 115-Buffer block; 116-Guide bracket; 117-Middle connection bracket; 12-Support bracket; 13-Buffer bushing; 14-Fixed bracket; 15-Synchronous shaft tube; 16-First lifting mechanism; 17-Second guiding mechanism; 2-Tilting mechanism; 21-Fixed component; 211-Connecting bracket; 2111-First connecting bracket; 2112-Second connecting bracket; 2113-Fixed plate; 2114-Connecting plate; 212-Power storage component; 2121-First power storage component; 2122-Second power storage component; 22-Support frame. Detailed Implementation

[0029] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0030] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0031] like Figures 1 to 3 As shown, the vehicle of this application includes a cab (not shown), a vehicle chassis (not shown), and a cab suspension assembly 10. The cab suspension assembly 10 is fixed to the vehicle chassis and connected to the cab to support the cab, thereby improving cab safety in the event of a collision. The cab suspension assembly 10 can be applied to, but is not limited to, cargo vehicles. In this application, the cab suspension assembly 10 is the front suspension assembly of the vehicle.

[0032] In one embodiment, the cab suspension assembly 10 includes a lifting mechanism 1 and a tilting mechanism 2, which are fixed to the vehicle chassis and used to support the cab. Along the vertical and horizontal directions of the cab, the lifting mechanism 1 can drive the cab to move upward and backward, and the tilting mechanism 2 assists the lifting mechanism 1 to improve the stability of the cab.

[0033] Further integration Figures 4 to 6As shown, the lifting mechanism 1 includes a guide frame 11, a support frame 12, a buffer bushing 13, and a fixed bracket 14. The guide frame 11 is rotatably mounted relative to the vehicle chassis. The support frame 12 supports the cab and is connected to the guide frame 11. The guide frame 11 can move the support frame 12. The guide frame 11 includes a front end 111 and a guide portion 112. The guide portion 112 is located at the front end 111 and can contact the impacting object when the cab collides. The guide portion 112 guides the guide frame 11 to move the support frame 12 upwards, and the guide frame 11 moves the support frame 12 backwards under the impact force of the impacting object.

[0034] Specifically, when a collision occurs in the vehicle's cab, the impacting object contacts the guide section 112. Under the impact force of the impacting object and the guiding action of the guide section 112, the guide frame 11 drives the support frame 12 to move upward and downward along the cab and backward along the cab, thereby moving the cab upward and backward. This arrangement allows the energy generated by the collision to be buffered and absorbed in a timely manner, thereby reducing the damage caused by the impact. At the same time, it prevents the cab from only moving backward in the forward and backward direction after being impacted, thus compressing the cab and improving the safety of the cab and protecting the safety of the driver.

[0035] In the front-rear direction of the cab, the guide frame 11 is located on the front side of the cab so that when the cab is hit, the guide part 112 of the guide frame 11 can contact the impacting object immediately to buffer and absorb the impact force of the impacting object, and at the same time lift the cab upward.

[0036] In one embodiment, the guide frame 11 includes a lower buffer end 113, an upper hinge end 114, and a buffer block 115. A guide portion 112 extends from the upper hinge end 114 to the lower buffer end 113, and in the front-rear direction of the guide frame 11, the lower buffer end 113 is located behind the upper hinge end 114. Specifically, the guide portion 112 is inclined from front to back, thereby allowing the guide frame 11 to move upward through the guide portion 112.

[0037] The guide section 112 has a straight edge, and the tilt angle A of the guide section 112 relative to the guide frame 11 in the front-rear direction is not greater than 80 degrees and not less than 50 degrees. This arrangement allows the lifting mechanism 1 to effectively buffer the impact force, while also making the lifting mechanism 1 lift the cab more smoothly.

[0038] If the tilt angle A of the guide section 112 relative to the guide frame 11 in the front-rear direction is greater than 80 degrees, the guide section 112 will tend to be vertically positioned, which will seriously affect its guiding effect on the impacting object, making it difficult for the guide frame 11 to move upward. The impact force of the impacting object will be applied more to the guide frame 11, causing the lifting mechanism 1 and the cab to move backward, resulting in the failure of the cab suspension assembly 10 and causing injury to the cab and the driver.

[0039] If the tilt angle A of the guide section 112 relative to the guide frame 11 in the front-rear direction is less than 50 degrees, when an impacting object collides with the guide section 112, the small tilt angle of the guide section 112 will severely affect the buffering and absorption effect of the guide frame 11 on the impact force, causing the impacting object to further collide with the cab, resulting in damage to the cab and injury or death to personnel. At the same time, the guide frame 11 moves upward rapidly under the action of the guide section 112, further damaging the cab and aggravating the injury to the driver.

[0040] In another embodiment, the guide portion 112 has an arc-shaped edge and protrudes outward along the guide frame 11 in a rear-to-front direction. This arrangement makes the guide portion 112 guide the impacting object more smoothly, and the lifting mechanism 1 lifts the cab more stably.

[0041] Further integration Figures 7 to 8 As shown, in one embodiment, the buffer block 115 protrudes downward from the lower buffer end 113 and is detachably disposed on the buffer bushing 13. The buffer bushing 13 can be connected to the vehicle chassis and is made of materials such as rubber or plastic. Specifically, when the lifting mechanism 1 is impacted, the guide frame 11 moves upward and the buffer block 115 disengages from the buffer bushing 13. This arrangement can reduce the vibration transmission between the lifting mechanism 1 and the vehicle chassis, and also makes the guide frame 11 move upward unobstructed and faster. The buffer block 115 is made of materials such as rubber or plastic.

[0042] In one embodiment, the guide frame 11 includes a guide bracket 116 and a central connecting bracket 117. The front end 111, guide portion 112, lower buffer end 113, upper hinge end 114, and buffer block 115 are all located on the guide bracket 116. A support frame 12 is connected to the upper hinge end 114 on the guide bracket 116. To make the connection between the support frame 12 and the guide frame 11 more flexible and to facilitate the carrying of the cab, the support frame 12 is hinged to the guide bracket 116.

[0043] The intermediate bracket 117 extends rearward from the guide bracket 116, and its end is hinged to the fixed bracket 14, so that the guide bracket 11 can rotate relative to the fixed bracket 14. The fixed bracket 14 can be fixed to the vehicle chassis.

[0044] In one embodiment, the lifting mechanism 1 includes a synchronous shaft tube 15, a first lifting mechanism 16, and a second guiding mechanism 17. To make the cab suspension assembly 10 more stable when supporting the cab, two lifting mechanisms are provided, namely the first lifting mechanism 16 and the second guiding mechanism 17. One end of the synchronous shaft tube 15 is fixed to the first lifting mechanism 16, and the other end is fixed to the second guiding mechanism 17, so that the first lifting mechanism 16 and the second guiding mechanism 17 can be moved synchronously through the synchronous shaft tube 15.

[0045] Further integration Figure 9 As shown, in one embodiment, the tilting mechanism 2 has a pushing force towards the cab. When the cab needs to be tilted, the cab can be easily tilted up under the pushing action of the tilting mechanism 2, improving the convenience of operation. The tilting mechanism 2 includes a fixing component 21 and a support frame 22. The fixing component 21 is fixed to the vehicle chassis, and the support frame 22 is used to support the cab and is rotatably connected to the fixing component 21.

[0046] The fixing assembly 21 includes a connecting bracket 211 and a force-accumulating component 212. The connecting bracket 211 is fixed to the vehicle chassis, the buffer bushing 13 is engaged with the connecting bracket 211, and the force-accumulating component 212 is disposed on the connecting bracket 211. The connecting bracket 211 includes a fixing plate 2113 and a connecting plate 2114. The fixing plate 2113 is bent from the lower side of the connecting plate 2114, and the fixing plate 2113 can be fixed to the vehicle chassis. The fixing plate 2113 is located below the guide frame 11, and the buffer bushing 13 is engaged with the fixing plate 2113. The force-accumulating component 212 is disposed on the connecting plate 2114.

[0047] The support frame 22 is connected to the energy storage member 212, and the energy storage member 212 provides the support frame 22 with a driving force for rotation toward the cab. The energy storage member 212 has a rod-like structure and is configured with a double torsion bar. The energy storage member 212 includes a first energy storage member 2121 and a second energy storage member 2122, and the connecting bracket 211 includes a first connecting bracket 2111 and a second connecting bracket 2112. The first energy storage member 2121 and the second energy storage member 2122 are both connected between the first connecting bracket 2111 and the second connecting bracket 2112. The first energy storage member 2121 and the second energy storage member 2122 have the same structure, and the first energy storage member 2121 and the second energy storage member 2122 cooperate to make the rotation of the support frame 22 more stable when the energy storage member 212 provides driving force to the support frame 22.

[0048] In another embodiment, the energy storage element 212 may be configured as a single torsion bar. Admittedly, the energy storage element 212 may also be a spring, torsion spring, or other elastic element structure.

[0049] In one embodiment, the support frame 22 is movably connected to the cab. Specifically, the end of the support frame 22 is slidably or rollably connected to the cab, thereby making it more convenient for the support frame 22 to support the cab while assisting in the cab's tilting and the lifting mechanism 1 to lift the cab. The support frame 22 always has a tendency to rotate toward the cab, and the rotation direction of the support frame 22 is opposite to the rotation direction of the guide frame 11, so as to make the support frame 22 and the lifting mechanism 1 more stable when supporting the cab.

[0050] In this application, when the lifting mechanism 1 is impacted, the guide frame 11 moves backward under the impact force, and simultaneously moves upward under the action of the guide part 112. This causes the cab connected to the support frame 12 to move upward and backward in sync, allowing the cab to avoid sharp parts of the engine or chassis, thus improving the cab's safety. During the upward movement of the cab, the support frame 22 rotates towards the cab under the action of the accumulator 212, ensuring that the support frame 22 remains in contact with the cab to support it, thereby maintaining the cab's stability.

[0051] In this application, the front-to-back direction of the guide frame 11 is the X-axis direction, the up-and-down direction of the guide frame 11 is the Z-axis direction, and the left-to-right direction of the guide frame 11 is the Y-axis direction. Please refer to [reference needed] for details. Figures 1 to 3 The cab's front-to-back direction is the same as the vehicle's front-to-back direction, and its vertical direction is the same as the vehicle's vertical direction. When the cab suspension assembly 10 is mounted on the vehicle, the guide frame 11's front-to-back direction is the same as the vehicle's front-to-back direction, its vertical direction is the same as the vehicle's vertical direction, and its horizontal direction is the same as the vehicle's horizontal direction.

[0052] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A cab suspension assembly, characterized in that, The system includes a lifting mechanism and a tilting mechanism. The lifting mechanism includes a guide frame and a support frame connected to the guide frame. The guide frame is rotatably mounted relative to the vehicle chassis. The support frame and the tilting mechanism are used to support the cab, and the tilting mechanism has a pushing force towards the cab. The guide frame includes a front end and a guide portion located at the front end. The guide portion is used to guide the guide frame to move the support frame upward. The tilting mechanism includes a fixed component and a support frame rotatably connected to the fixed component; the support frame is used to support the cab. The fixing component includes a connecting bracket and a power storage component disposed on the connecting bracket. The connecting bracket is fixed to the vehicle chassis, and the support frame is connected to the power storage component and is used to support the cab. When the lifting mechanism is impacted, the guide frame drives the support frame to move up and down along the cab and backward along the cab. The connecting bracket is fixed relative to the vehicle chassis, and the support frame rotates toward the cab under the action of the accumulator.

2. The cab suspension assembly according to claim 1, characterized in that, The guide frame includes a lower buffer end and an upper hinge end connected to the support frame; the guide portion extends from the upper hinge end to the lower buffer end; in the front-rear direction of the guide frame, the lower buffer end is located behind the upper hinge end.

3. The cab suspension assembly according to claim 2, characterized in that, The guide portion has a straight edge, and the inclination angle A of the guide portion relative to the front-rear direction of the guide frame is not greater than 80 degrees and not less than 50 degrees; or The guide portion has an arc-shaped edge and protrudes outward along the guide frame from back to front.

4. The cab suspension assembly according to claim 2, characterized in that, The lifting mechanism includes a buffer bushing, and the guide frame includes a buffer block protruding downward from the lower buffer end; the buffer block is detachably disposed on the buffer bushing.

5. The cab suspension assembly according to claim 1, characterized in that, The guide frame includes a guide bracket and a central connecting bracket extending rearward from the guide bracket; the lifting mechanism includes a fixed bracket that can be fixed to the vehicle chassis; the support frame is hinged to the guide bracket, and the end of the central connecting bracket is hinged to the fixed bracket.

6. The cab suspension assembly according to claim 1, characterized in that, The lifting mechanism includes a synchronous shaft tube, a first lifting mechanism, and a second guiding mechanism; one end of the synchronous shaft tube is fixed to the first lifting mechanism, and the other end is fixed to the second guiding mechanism.

7. The cab suspension assembly according to claim 1, characterized in that, The support frame is movably connected to the cab; the support frame always tends to rotate toward the cab, and the rotation direction of the support frame is opposite to the rotation direction of the guide frame.

8. The cab suspension assembly according to claim 7, characterized in that, The lifting mechanism includes a buffer bushing; the energy storage element provides a driving force for the support frame to rotate toward the cab; the buffer bushing engages with the connecting bracket.

9. The cab suspension assembly according to claim 8, characterized in that, The energy storage component is a rod-shaped structure, and the energy storage component includes a first energy storage component and a second energy storage component; the connecting bracket includes a first connecting bracket and a second connecting bracket; the first energy storage component and the second energy storage component are both connected between the first connecting bracket and the second connecting bracket.

10. A vehicle, characterized in that, It includes a cab, a vehicle chassis, and a cab suspension assembly as described in any one of claims 1 to 9, wherein the support frame is fixed to the cab, and the guide frame is rotatably disposed with respect to the vehicle chassis.

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