Cab suspension device and vehicle with cab suspension device

Abstract

The invention provides a cab suspension device and a vehicle with the cab suspension device, and the cab suspension device comprises a plurality of rear suspension upper mounting parts which are arranged below a cab floor at intervals in the width direction of the cab floor; wherein at least one of the multiple rear suspension upper mounting parts comprises a lock bolt support assembly and a lock bolt inclined supporting rod, one end of the lock bolt support assembly is connected with a floor longitudinal beam of a cab floor, the other end of the lock bolt support assembly is connected with the hydraulic lock bolt, and the lock bolt inclined supporting rod is located on one side of the lock bolt support assembly; the lock bolt inclined supporting rod and the hydraulic lock bolt are arranged in a spaced mode, the lock bolt inclined supporting rod and the floor longitudinal beam are arranged in a spaced mode, and one end of the lock bolt inclined supporting rod is connected with the lock bolt support assembly. The technical problem that in a cab suspension device in the prior art, chassis load is concentrated in a local area when being transmitted to a cab floor, and consequently the local load of the floor is too high is solved.

Description

Technical Field

[0001] This invention relates to the field of cab suspension technology, and more specifically, to a vehicle having a cab suspension device thereon. Background Technology

[0002] In existing cab suspension systems, the connection between the rear suspension superstructure and the cab floor mostly relies on a single bolt bracket assembly to transfer chassis loads. The lack of a targeted load-distribution structure design causes the load to easily concentrate in a local area of ​​the cab floor during transmission, failing to effectively utilize the load-bearing potential of the larger floor area. Over long-term use, this localized stress concentration may affect the stability and service life of the cab structure.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] The main objective of this invention is to provide a vehicle with a cab suspension system to solve the technical problem in the prior art where the chassis load is concentrated in a local area when it is transferred to the cab floor, resulting in excessive local load on the floor.

[0005] To achieve the above objectives, according to one aspect of the present invention, a cab suspension device is provided, comprising: a rear suspension superstructure, the rear suspension superstructure being disposed below the cab floor, the rear suspension superstructure comprising a plurality of such rear suspension superstructures being spaced apart along the width direction of the cab floor; wherein at least one of the plurality of rear suspension superstructures comprises: a bolt bracket assembly and a bolt diagonal brace, one end of the bolt bracket assembly being connected to a floor longitudinal beam of the cab floor, the other end of the bolt bracket assembly being connected to a hydraulic bolt, the bolt diagonal brace being located on one side of the bolt bracket assembly, the bolt diagonal brace being spaced apart from the hydraulic bolt, the bolt diagonal brace being spaced apart from the floor longitudinal beam, one end of the bolt diagonal brace being connected to the bolt bracket assembly, the other end of the bolt diagonal brace being connected to a floor support of the cab floor, and the bolt diagonal brace being arranged at a predetermined angle to the bolt bracket assembly.

[0006] Furthermore, at least two of the multiple rear suspension superstructures are arranged symmetrically about the geometric center of the cab floor.

[0007] Furthermore, at least one of the multiple rear suspension superstructures also includes: a lifting assembly located on the other side of the bolt bracket assembly, the lifting assembly being spaced apart from the bolt diagonal brace, the lifting assembly being spaced apart from the cab floor and the hydraulic bolt respectively, and the lifting assembly being used for detachable connection with a transfer lifting device.

[0008] Furthermore, the bolt bracket assembly includes: an upper bolt bracket, one end of which is connected to the floor longitudinal beam; a lifting assembly located on one side of the floor longitudinal beam; a portion of the lifting assembly connected to the floor longitudinal beam; the floor longitudinal beam being positioned at a distance from the bolt diagonal brace and the hydraulic bolt; and a lower bolt bracket, located below the upper bolt bracket; the lower bolt bracket being positioned at a distance from the lifting assembly and the cab floor; one end of the lower bolt bracket being connected to the other end of the upper bolt bracket; the lower bolt bracket having a positioning space; the hydraulic bolt located within the positioning space; a portion of the hydraulic bolt being connected to the lower bolt bracket; and the bolt diagonal brace located on one side of the lower bolt bracket and connected to the lower bolt bracket.

[0009] Furthermore, the other end of the upper bracket of the bolt has a mounting groove, and part of the lower bracket of the bolt is embedded in the mounting groove.

[0010] Furthermore, the upper bracket of the bolt includes: a first connecting plate, which is spaced apart from the lower bracket of the bolt, and a portion of the first connecting plate is connected to the floor longitudinal beam; a second connecting plate, which is located at one end of the first connecting plate and is set at a preset angle to the first connecting plate, with one end of the second connecting plate connected to one end of the lower bracket of the bolt and the other end of the second connecting plate connected to one end of the first connecting plate; and a third connecting plate, which is spaced apart from the second connecting plate and is located at the other end of the first connecting plate, with one end of the third connecting plate connected to one end of the lower bracket of the bolt and the other end of the third connecting plate connected to the other end of the first connecting plate.

[0011] Furthermore, the second and third connecting plates are configured with different structures.

[0012] Further, at least one of the second connecting plate and the third connecting plate includes: a first straight segment, disposed close to the first connecting plate; a first connecting segment, disposed at a preset angle to the first straight segment, one end of the first connecting segment connecting to one end of the first straight segment; a second straight segment, disposed at a distance from the first straight segment, disposed at a preset angle to the first connecting segment, one end of the second straight segment connecting to the other end of the first straight segment; a first arc segment, disposed at a distance from both the first straight segment and the first connecting segment, one end of the first arc segment connecting to the other end of the second straight segment; and a third straight segment. The third straight segment is set parallel to the first straight segment, and one end of the third straight segment is connected to the other end of the first arc segment; the second arc segment is set symmetrically with respect to the first arc segment about the third straight segment, and one end of the second arc segment is connected to the other end of the third straight segment; the fourth straight segment is set symmetrically with respect to the second straight segment about the third straight segment, and one end of the fourth straight segment is connected to the other end of the second arc segment; the second connecting segment is set symmetrically with respect to the first connecting segment about the first straight segment, and one end of the second connecting segment is connected to one end of the fourth straight segment, and the other end of the second connecting segment is connected to the other end of the first straight segment.

[0013] Further, at least one of the first connecting segment and the second connecting segment includes: a fifth straight segment, which is arranged at a predetermined angle to the first straight segment, and one end of the fifth straight segment is connected to the end of the first straight segment; a third arc segment, which is arranged adjacent to the fifth straight segment, and one end of the third arc segment is connected to the other end of the fifth straight segment; a sixth straight segment, which is arranged at a predetermined angle to the fifth straight segment, and one end of the sixth straight segment is connected to the other end of the third arc segment; a fourth arc segment, which is arranged adjacent to the sixth straight segment, and one end of the fourth arc segment is connected to the other end of the sixth straight segment; and a seventh straight segment, which is arranged at a predetermined angle to the sixth straight segment, and one end of the seventh straight segment is connected to the other end of the fourth arc segment, and the other end of the seventh straight segment is connected to one of the fourth straight segment and the second straight segment.

[0014] Furthermore, the lifting assembly includes: a lifting connecting plate extending along the length of the upper bracket of the bolt, with a portion of the lifting connecting plate connected to the upper bracket of the bolt; and a lifting ring located at one end of the lifting connecting plate, positioned at a distance from the bolt bracket assembly, connected to the lifting connecting plate, extending towards the cab side, and used for detachable connection with a transfer lifting device.

[0015] In another aspect, the present invention provides a vehicle including a cab suspension device, wherein the cab suspension device is the cab suspension device described above.

[0016] By applying the technical solution of this invention, a multi-path load transfer structure is constructed by setting a diagonal brace for the locking bolts on one side of the locking bolt bracket assembly, spaced apart from the hydraulic locking bolts, with one end connected to the locking bolt bracket assembly and the other end connected to the cab floor bracket, and setting the diagonal brace at a preset angle to the locking bolt bracket assembly. This successfully distributes the chassis load from the locking bolt bracket assembly to a larger area of ​​the cab floor covered by the floor longitudinal beams and floor brackets via the diagonal brace, effectively reducing local load and stress concentration on the floor, significantly improving the load uniformity and structural strength of the cab floor, and enhancing the connection stability between the rear suspension superstructure and the cab floor. This also extends the service life of the cab suspension device and the cab as a whole, solving the technical problem in the prior art where the chassis load is concentrated in a local area when transferred to the cab floor, resulting in excessively high local load on the floor. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of a first embodiment of the cab suspension device according to the present invention is shown;

[0019] Figure 2 A schematic diagram of a second embodiment of the cab suspension device according to the present invention is shown;

[0020] Figure 3 A schematic diagram of a third embodiment of the cab suspension device according to the present invention is shown;

[0021] Figure 4 A partial structural schematic diagram of a fourth embodiment of the cab suspension device according to the present invention is shown;

[0022] Figure 5 A schematic diagram of the structure of a first embodiment of the upper bracket of the locking bolt in the cab suspension device according to the present invention is shown;

[0023] Figure 6 A schematic diagram of a second embodiment of the upper bracket of the locking bolt in the cab suspension device according to the present invention is shown;

[0024] Figure 7 A schematic diagram of a first embodiment of the hoisting assembly in the cab suspension device according to the present invention is shown.

[0025] The above figures include the following reference numerals:

[0026] 10. Locking bolt bracket assembly;

[0027] 101. Bracket on the locking bolt;

[0028] 102. Locking bolt lower bracket;

[0029] 103. First connecting plate;

[0030] 104. Second connecting plate;

[0031] 105. Third connecting plate;

[0032] 106. The first straight segment;

[0033] 107. The fifth straight segment;

[0034] 108. The third arc segment;

[0035] 109. The sixth straight segment;

[0036] 110. The fourth arc segment;

[0037] 111. The seventh straight line segment;

[0038] 112. The second straight segment;

[0039] 113. The first arc segment;

[0040] 114. The third straight segment;

[0041] 115. The second arc segment;

[0042] 116. The fourth straight segment;

[0043] 20. Driver's cab floor;

[0044] 201. Floor longitudinal beams;

[0045] 202. Floor support;

[0046] 30. Lifting components;

[0047] 301. Lifting connection plate;

[0048] 302. Hanging rings;

[0049] 40. Locking bolt diagonal brace;

[0050] 50. Hydraulic locking bolt;

[0051] 60. Hydraulic lock. Detailed Implementation

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0055] In existing cab suspension systems for commercial vehicles and construction machinery, the rear suspension superstructure, as a core load-bearing component connecting the cab and chassis, suffers from significant limitations in its connection structure design with the cab floor. Current mainstream structures rely on a single bolt bracket assembly for load transfer and bearing. This design only transfers various loads generated by the chassis (including vibration loads during driving, road impact loads, braking inertia loads, and steering roll loads) to the cab floor through a single point or localized connection area, lacking a targeted multi-path load-distribution structure and auxiliary load-bearing layout.

[0056] Because of the lack of suitable load diversion components and stress diffusion structures, various chassis loads cannot be effectively dispersed during transmission, instead concentrating on the localized area connecting the bolt bracket assembly with the cab floor longitudinal beams and floor supports, making this area a stress concentration point. Furthermore, this single-path transmission design fails to fully utilize the large-area load-bearing potential of the cab floor itself, particularly the collaborative load-bearing capacity of the floor longitudinal beams, floor supports, and surrounding structures. This results in the overall floor load-bearing capacity being underutilized, leading to a waste of structural load-bearing resources.

[0057] During the long-term service of a vehicle, the aforementioned problem of localized stress concentration will continue to worsen: on the one hand, fatigue accumulation is likely to occur in areas of stress concentration, gradually leading to micro-deformation of the floor panels, weld cracking, or loosening of connectors, directly affecting the stability and durability of the overall cab structure and shortening the service life of the cab and suspension system; on the other hand, the weakening of localized structural strength may lead to a decrease in the reliability of suspension connections, thereby affecting the installation accuracy of the cab, causing problems such as reduced driving comfort and increased vibration and noise, and in severe cases, may even induce safety hazards due to structural failure, failing to meet the high-intensity and long-life service requirements of the vehicle.

[0058] Combination Figures 1 to 7 As shown, according to a specific embodiment of this application, a cab suspension device is provided.

[0059] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, a cab suspension device includes: a rear suspension superstructure, which is disposed below the cab floor 20. Multiple rear suspension superstructures are spaced apart along the width direction of the cab floor 20. At least one of the multiple rear suspension superstructures includes: a bolt bracket assembly 10 and a bolt diagonal brace 40. One end of the bolt bracket assembly 10 is connected to the floor longitudinal beam 201 of the cab floor 20. The other end of component 10 is connected to the hydraulic bolt 50. The bolt diagonal brace 40 is located on one side of the bolt bracket assembly 10, and is spaced apart from the hydraulic bolt 50. The bolt diagonal brace 40 is positioned at a distance from the floor longitudinal beam 201. One end of the bolt diagonal brace 40 is connected to the bolt bracket assembly 10, and the other end is connected to the floor support 202 of the cab floor 20. The bolt diagonal brace 40 and the bolt bracket assembly 10 are positioned at a predetermined angle. The hydraulic bolt 50 is used for a movable connection with the hydraulic lock 60.

[0060] By applying the technical solution of this invention, a multi-path load transfer structure is constructed by setting a bolt diagonal brace 40 on one side of the bolt bracket assembly 10, which is spaced apart from the hydraulic bolt 50 and has one end connected to the bolt bracket assembly 10 and the other end connected to the cab floor 20. The bolt diagonal brace 40 is set at a preset angle with the bolt bracket assembly 10. This successfully distributes the chassis load from the bolt bracket assembly 10 to a larger area of ​​the cab floor 20 covered by the floor longitudinal beam 201 and the floor support 202 via the bolt diagonal brace 40. This effectively reduces the local load and stress concentration of the cab floor 20, significantly improves the load uniformity and structural strength of the cab floor 20, and enhances the connection stability between the rear suspension superstructure and the cab floor 20. It also extends the service life of the cab suspension device and the cab as a whole, solving the technical problem in the prior art where the chassis load is concentrated in a local area when transferred to the cab floor 20, resulting in excessive local load on the cab floor 20.

[0061] Furthermore, at least two of the multiple rear suspension superstructures are symmetrically arranged about the geometric center of the cab floor 20. This allows the force on the cab floor 20 to be evenly distributed along the width direction, avoiding deformation caused by concentrated force in local areas. At the same time, it improves the support and balance of the rear suspension superstructures for the cab, enhances the stability of the suspension device under vibration or bumpy conditions, and ensures the reliability of the connection between the hydraulic bolt 50 and the hydraulic lock 60.

[0062] Specifically, at least one of the multiple rear suspension superstructures further includes: a lifting assembly 30, which is located on the other side of the bolt bracket assembly 10. The lifting assembly 30 is spaced apart from the bolt diagonal brace 40 and is positioned at a distance from the cab floor 20 and the hydraulic bolt 50, respectively. The lifting assembly 30 is used for detachable connection with the transfer lifting device.

[0063] Using this embodiment, the cab suspension device can be conveniently transported and installed through the detachable connection between the hoisting component 30 and the transfer hoist, while avoiding interference between the hoisting component 30 and the normal operation of the bolt bracket component 10, the bolt diagonal brace 40 and the hydraulic bolt 50, thus improving the overall assembly flexibility and practicality of the device.

[0064] In this embodiment, as Figure 4As shown, the bolt bracket assembly 10 includes: an upper bolt bracket 101, one end of which is connected to the floor longitudinal beam 201; a hoisting assembly 30 located on one side of the floor longitudinal beam 201, with a portion of the hoisting assembly 30 connected to the floor longitudinal beam 201; the floor longitudinal beam 201 being spaced apart from the bolt diagonal brace 40 and the hydraulic bolt 50; and a lower bolt bracket 102 located below the upper bolt bracket 101, with a distance between the lower bolt bracket 102 and the hoisting assembly 30 and the cab floor 20; one end of the lower bolt bracket 102 being connected to the other end of the upper bolt bracket 101; the lower bolt bracket 102 having a positioning space; the hydraulic bolt 50 located within the positioning space; a portion of the hydraulic bolt 50 being connected to the lower bolt bracket 102; and the bolt diagonal brace 40 located on one side of the lower bolt bracket 102 and connected to the lower bolt bracket 102.

[0065] In this embodiment, the bolt bracket assembly 10 adopts a split structure of upper bolt bracket 101 and lower bolt bracket 102. One end of the upper bolt bracket 101 is connected to the floor longitudinal beam 201 and the hoisting assembly 30 is arranged on the same side. Part of the hoisting assembly 30 is connected to the floor longitudinal beam 201. The floor longitudinal beam 201 maintains a distance from the bolt diagonal brace 40 and the hydraulic bolt 50. The lower bolt bracket 102 is located below the upper bolt bracket 101 and maintains a distance from the hoisting assembly 30 and the cab floor 20. The positioning space of the lower bolt bracket 102 can limit the installation of the hydraulic bolt 50. The bolt diagonal brace 40 is connected to the lower bolt bracket 102, which can realize the precise positioning and stable assembly of the hydraulic bolt 50. At the same time, the split structure facilitates the individual processing, disassembly and maintenance of the components. The spacing design of each component can avoid mutual interference. Combined with the supporting effect of the bolt diagonal brace 40, the structural strength and impact resistance of the bolt bracket assembly 10 are further improved.

[0066] In one exemplary embodiment, the upper bolt bracket 101 has a mounting groove at its other end, and a portion of the lower bolt bracket 102 is embedded in the mounting groove. This enables rapid positioning and assembly of the upper bolt bracket 101 and the lower bolt bracket 102, improving the fit and stability of their connection, enhancing the overall structural rigidity of the bolt bracket assembly 10, preventing relative displacement of the bolt bracket assembly 10 under load, and ensuring the installation accuracy and operational stability of the hydraulic bolt 50.

[0067] like Figure 5 and Figure 6As shown, the upper bolt bracket 101 includes: a first connecting plate 103, which is spaced apart from the lower bolt bracket 102, and a portion of the first connecting plate 103 is connected to the floor longitudinal beam 201; a second connecting plate 104, which is located at one end of the first connecting plate 103, and is set at a preset angle to the first connecting plate 103, with one end of the second connecting plate 104 connected to one end of the lower bolt bracket 102, and the other end of the second connecting plate 104 connected to one end of the first connecting plate 103; and a third connecting plate 105, which is spaced apart from the second connecting plate 104, and is located at the other end of the first connecting plate 103, and is set at a preset angle to the first connecting plate 103, with one end of the third connecting plate 105 connected to one end of the lower bolt bracket 102, and the other end of the third connecting plate 105 connected to the other end of the first connecting plate 103. In this embodiment, the angle between the third connecting plate 105 and the first connecting plate 103, and the angle between the second connecting plate 104 and the first connecting plate 103, are 90 degrees.

[0068] In this embodiment, the upper bolt bracket 101 adopts a combined structure of a first connecting plate 103, a second connecting plate 104, and a third connecting plate 105. The second connecting plate 104 and the third connecting plate 105 are located at both ends of the first connecting plate 103 and are set at a preset angle to the first connecting plate 103. At the same time, both are connected to one end of the lower bolt bracket 102 and to the corresponding end of the first connecting plate 103. The first connecting plate 103 and the lower bolt bracket 102 are spaced apart and partially connected to the floor longitudinal beam 201, which can form a stable triangular support structure, greatly improving the structural strength and deformation resistance of the upper bolt bracket 101, effectively dispersing the load transmitted by the hydraulic bolt 50, avoiding local stress concentration, and ensuring the overall reliability of the bolt bracket assembly 10.

[0069] Furthermore, the second connecting plate 104 and the third connecting plate 105 are structurally different. The different structural arrangements of the second connecting plate 104 and the third connecting plate 105 can adapt to the differentiated connection requirements of the upper bolt bracket 101, the lower bolt bracket 102, and the floor longitudinal beam 201, optimize the stress distribution of the upper bolt bracket 101, avoid local stress concentration caused by a single structure, and improve the compatibility of the upper bolt bracket 101 with surrounding components, ensuring the overall support stability of the bolt bracket assembly 10.

[0070] Specifically, the second connecting plate 104 and the third connecting plate 105 have the same structure. Taking one of them as an example, it is described in detail as follows: a first straight segment 106, which is set close to the first connecting plate 103; a first connecting segment, which is set at a preset angle to the first straight segment 106, and one end of the first connecting segment is connected to one end of the first straight segment 106; a second straight segment 112, which is set at a distance from the first straight segment 106, which is set at a preset angle to the first connecting segment, and one end of the second straight segment 112 is connected to the other end of the first straight segment 106; a first arc segment 113, which is set at a distance from the first straight segment 106 and the first connecting segment, and one end of the first arc segment 113 is connected to the other end of the second straight segment 112; a third straight segment 105; a second straight segment 106; a third straight segment 105; a third ... Line segment 114, the third straight line segment 114 is set parallel to the first straight line segment 106, and one end of the third straight line segment 114 is connected to the other end of the first arc segment 113; the second arc segment 115, the second arc segment 115 and the first arc segment 113 are set symmetrically about the third straight line segment 114, and one end of the second arc segment 115 is connected to the other end of the third straight line segment 114; the fourth straight line segment 116, the fourth straight line segment 116 and the second straight line segment 112 are set symmetrically about the third straight line segment 114, and one end of the fourth straight line segment 116 is connected to the other end of the second arc segment 115; the second connecting segment, the second connecting segment and the first connecting segment are set symmetrically about the first straight line segment 106, one end of the second connecting segment is connected to one end of the fourth straight line segment 116, and the other end of the second connecting segment is connected to the other end of the first straight line segment 106.

[0071] In this embodiment, the second connecting plate 104 and the third connecting plate 105 have the same structure. This symmetrical composite structure, which includes straight segments and arc segments, can enhance the bending resistance and load transfer efficiency of the connecting plate itself. Together with the first connecting plate 103 and the lower bolt bracket 102, it forms a stable support frame, further improving the structural strength and stress uniformity of the bolt bracket assembly 10.

[0072] Furthermore, the first connecting segment and the second connecting segment have the same structure. Taking one of them as an example, it is described in detail as follows: a fifth straight segment 107, which is set at a preset angle to the first straight segment 106, and one end of the fifth straight segment 107 is connected to the end of the first straight segment 106; a third arc segment 108, which is set adjacent to the fifth straight segment 107, and one end of the third arc segment 108 is connected to the other end of the fifth straight segment 107; and a sixth straight segment 109, which is set at a preset angle to the fifth straight segment 107. The sixth straight segment 109 is configured such that one end connects to the other end of the third arc segment 108; the fourth arc segment 110 is positioned adjacent to the sixth straight segment 109, with one end connected to the other end of the sixth straight segment 109; the seventh straight segment 111 is positioned at a preset angle to the sixth straight segment 109, with one end connected to the other end of the fourth arc segment 110, and the other end connected to one of the fourth straight segment 116 and the second straight segment 112. The fifth straight segment 107 forms a 90-degree angle with the first straight segment 106, the sixth straight segment 109 forms a 130-degree angle with the fifth straight segment 107, and the seventh straight segment 111 forms a 130-degree angle with the sixth straight segment 109.

[0073] In this embodiment, the first connecting segment and the second connecting segment have the same structure. This structure, which alternates between straight segments and curved segments, can effectively disperse stress concentration at the connection point and improve the impact resistance and bending resistance of the connecting segment itself. Combined with the overall symmetrical design of the second connecting plate 104 and the third connecting plate 105, it further enhances the structural stability and load transmission capacity of the bolt upper bracket 101 and ensures the reliability of the bolt bracket assembly 10 in supporting the hydraulic bolt 50.

[0074] In this embodiment, as Figure 7 As shown, the lifting assembly 30 includes: a lifting connecting plate 301, which extends along the length of the upper bolt bracket 101, and a portion of the lifting connecting plate 301 is connected to the upper bolt bracket 101; and a lifting ring 302, which is located at one end of the lifting connecting plate 301, is disposed at a distance from the bolt bracket assembly 10, is connected to the lifting connecting plate 301, extends toward the cab side, and is detachably connected to the transfer lifting device.

[0075] In this embodiment, the lifting connection plate 301 of the lifting assembly 30 extends along the length of the upper bolt bracket 101 and is partially connected to the upper bolt bracket 101. The lifting ring 302 is located at one end of the lifting connection plate 301, maintains a distance from the bolt bracket assembly 10, extends towards the cab side, and is connected to the lifting connection plate 301. This allows for convenient and detachable connection with the transfer lifting device through the lifting ring 302, meeting the transfer and assembly requirements of the cab suspension device. It also ensures lifting stability through the extended arrangement of the lifting connection plate 301. The position design of the lifting ring 302 avoids interference with the bolt bracket assembly 10 and adapts to the overall structural layout, improving the assembly flexibility and practicality of the device.

[0076] According to another specific embodiment of this application, a vehicle is also provided, including a cab suspension device, wherein the cab suspension device is the cab suspension device described above.

[0077] By applying the technical solution of the present invention, the vehicle equipped with the above-mentioned cab suspension device can effectively improve the cab's support stability and impact resistance, optimize the cab's stress distribution, and avoid deformation or breakage of local components due to stress concentration by utilizing the design of the split bolt bracket assembly 10, the bolt diagonal brace 40 with a preset included angle, the symmetrically arranged rear suspension upper part, and the structurally adapted hoisting assembly 30 of the suspension device. At the same time, it can realize convenient transportation and assembly of the cab suspension device, ensure the reliability and comfort of the cab during vehicle operation, and enhance the overall performance of the vehicle.

[0078] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0079] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cab suspension device, characterized in that, include: The rear suspension upper body is located below the cab floor (20). The rear suspension upper body includes multiple rear suspension upper bodies, which are spaced apart along the width direction of the cab floor (20). Among them, at least one of the rear suspension superstructures includes: a bolt bracket assembly (10) and a bolt diagonal brace (40). One end of the bolt bracket assembly (10) is connected to the floor longitudinal beam (201) of the cab floor (20), and the other end of the bolt bracket assembly (10) is connected to the hydraulic bolt (50). The bolt diagonal brace (40) is located on one side of the bolt bracket assembly (10). The bolt diagonal brace (40) and the hydraulic bolt (50) are spaced apart. The bolt diagonal brace (40) and the floor longitudinal beam (201) are arranged at a distance. One end of the bolt diagonal brace (40) is connected to the bolt bracket assembly (10), and the other end of the bolt diagonal brace (40) is connected to the floor bracket (202) of the cab floor (20). The bolt diagonal brace (40) and the bolt bracket assembly (10) are arranged at a preset angle.

2. The cab suspension device according to claim 1, characterized in that, At least two of the plurality of rear suspension superstructures are arranged symmetrically about the geometric center of the cab floor (20).

3. The cab suspension device according to claim 1 or 2, characterized in that, At least one of the plurality of rear suspension superstructures further includes: The hoisting assembly (30) is located on the other side of the bolt bracket assembly (10). The hoisting assembly (30) is spaced apart from the bolt diagonal brace (40). The hoisting assembly (30) is positioned at a distance from the cab floor (20) and the hydraulic bolt (50). The hoisting assembly (30) is used for detachable connection with the transfer hoisting device.

4. The cab suspension device according to claim 3, characterized in that, The bolt bracket assembly (10) includes: A bolt upper bracket (101) is provided, one end of which is connected to the floor longitudinal beam (201). The hoisting assembly (30) is located on one side of the floor longitudinal beam (201). A portion of the hoisting assembly (30) is connected to the floor longitudinal beam (201). The floor longitudinal beam (201) is provided at a distance from the bolt diagonal brace (40) and the hydraulic bolt (50). A lower bolt bracket (102) is located below the upper bolt bracket (101). The lower bolt bracket (102) is spaced apart from the hoisting assembly (30) and the cab floor (20). One end of the lower bolt bracket (102) is connected to the other end of the upper bolt bracket (101). The lower bolt bracket (102) has a positioning space. The hydraulic bolt (50) is located in the positioning space. Part of the hydraulic bolt (50) is connected to the lower bolt bracket (102). The bolt diagonal brace (40) is located on one side of the lower bolt bracket (102) and is connected to the lower bolt bracket (102).

5. The cab suspension device according to claim 4, characterized in that, The upper bracket (101) of the bolt has a mounting groove at the other end, and part of the lower bracket (102) of the bolt is embedded in the mounting groove.

6. The cab suspension device according to claim 4, characterized in that, The upper bracket (101) of the bolt includes: The first connecting plate (103) is spaced apart from the lower bolt bracket (102), and part of the first connecting plate (103) is connected to the floor longitudinal beam (201); The second connecting plate (104) is located at one end of the first connecting plate (103). The second connecting plate (104) and the first connecting plate (103) are arranged at a preset angle. One end of the second connecting plate (104) is connected to one end of the lower bracket of the locking bolt (102), and the other end of the second connecting plate (104) is connected to one end of the first connecting plate (103). The third connecting plate (105) is spaced apart from the second connecting plate (104). The third connecting plate (105) is located at the other end of the first connecting plate (103). The third connecting plate (105) and the first connecting plate (103) are arranged at a preset angle. One end of the third connecting plate (105) is connected to one end of the lower bracket of the locking bolt (102), and the other end of the third connecting plate (105) is connected to the other end of the first connecting plate (103).

7. The cab suspension device according to claim 6, characterized in that, The second connecting plate (104) and the third connecting plate (105) are configured with different structures.

8. The cab suspension device according to claim 6, characterized in that, At least one of the second connecting plate (104) and the third connecting plate (105) includes: The first straight segment (106) is located close to the first connecting plate (103); The first connecting segment is set at a preset angle to the first straight segment (106), and one end of the first connecting segment is connected to one end of the first straight segment (106); The second straight segment (112) is spaced apart from the first straight segment (106), and the second straight segment (112) is set at a preset angle to the first connecting segment. One end of the second straight segment (112) is connected to the other end of the first straight segment (106). The first arc segment (113) is spaced apart from the first straight segment (106) and the first connecting segment, and one end of the first arc segment (113) is connected to the other end of the second straight segment (112). The third straight line segment (114) is arranged parallel to the first straight line segment (106), and one end of the third straight line segment (114) is connected to the other end of the first arc segment (113). The second arc segment (115) and the first arc segment (113) are arranged symmetrically about the third straight line segment (114), and one end of the second arc segment (115) is connected to the other end of the third straight line segment (114). The fourth straight line segment (116) is arranged symmetrically with the second straight line segment (112) about the third straight line segment (114), and one end of the fourth straight line segment (116) is connected to the other end of the second arc segment (115). The second connecting segment is symmetrically arranged with respect to the first connecting segment about the first straight line segment (106). One end of the second connecting segment is connected to one end of the fourth straight line segment (116), and the other end of the second connecting segment is connected to the other end of the first straight line segment (106).

9. The cab suspension device according to claim 8, characterized in that, At least one of the first connection segment and the second connection segment includes: The fifth straight segment (107) is set at a preset angle to the first straight segment (106), and one end of the fifth straight segment (107) is connected to the end of the first straight segment (106). The third arc segment (108) is arranged adjacent to the fifth straight line segment (107), and one end of the third arc segment (108) is connected to the other end of the fifth straight line segment (107). The sixth straight line segment (109) is set at a preset angle to the fifth straight line segment (107), and one end of the sixth straight line segment (109) is connected to the other end of the third arc segment (108). The fourth arc segment (110) is arranged adjacent to the sixth straight line segment (109), and one end of the fourth arc segment (110) is connected to the other end of the sixth straight line segment (109). The seventh straight line segment (111) is set at a preset angle with the sixth straight line segment (109). One end of the seventh straight line segment (111) is connected to the other end of the fourth arc segment (110), and the other end of the seventh straight line segment (111) is connected to one of the fourth straight line segment (116) and the second straight line segment (112).

10. The cab suspension device according to claim 4, characterized in that, The hoisting assembly (30) includes: A hoisting connecting plate (301) is provided, which extends along the length direction of the upper bracket (101) of the bolt, and part of the hoisting connecting plate (301) is connected to the upper bracket (101) of the bolt; A lifting ring (302) is located at one end of the lifting connection plate (301). The lifting ring (302) is disposed at a distance from the bolt bracket assembly (10). The lifting ring (302) is connected to the lifting connection plate (301). The lifting ring (302) extends toward the cab side. The lifting ring (302) is used for detachable connection with the transfer lifting device.

11. A vehicle, comprising a cab suspension device, characterized in that, The cab suspension device is the cab suspension device according to any one of claims 1 to 9.

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