CN213008430U - Cab rear suspension device and vehicle - Google Patents
Cab rear suspension device and vehicle Download PDFInfo
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- CN213008430U CN213008430U CN202021342925.1U CN202021342925U CN213008430U CN 213008430 U CN213008430 U CN 213008430U CN 202021342925 U CN202021342925 U CN 202021342925U CN 213008430 U CN213008430 U CN 213008430U
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- swing arm
- lock
- rear suspension
- cab
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Abstract
The application provides a cab rear suspension device and a vehicle, and belongs to the field of vehicle suspension systems, wherein the cab rear suspension device comprises a supporting seat, a damping assembly, a swing arm assembly, a lock assembly and a locking support assembly; the shock absorption assembly comprises at least 2 elastic supporting bodies, and the bottoms of the elastic supporting bodies are movably connected with the supporting seat through connecting pieces; the two end parts of the swing arm component are respectively and movably connected with the supporting seat and the top of the elastic supporting body through connecting pieces; the lock assembly is fixedly arranged on the swing arm assembly; the locking support assembly comprises a locking support frame, a pin shaft and a damping bush; the damping bushing is arranged in the locking support frame, and the pin shaft penetrates through the damping bushing; the damping bush achieves the purposes of absorbing high-frequency vibration in the driving process and reducing the abrasion of the pin shaft, and can ensure that the vehicle has good comfort in the driving process.
Description
Technical Field
The utility model relates to a suspension system field of vehicle, concretely relates to suspension device and vehicle behind driver's cabin.
Background
With the development of the transportation industry and the progress of science and technology in China, the requirement of people on the comfort of heavy trucks is higher and higher. At present, domestic main trucks all adopt rear suspension devices with helical springs or air springs, and the structural form can attenuate the vibration transmitted to a cab by a frame and improve the comfort of the cab. However, with the accumulated error of the cab components, the locking bracket is difficult to lock in the process of falling back the cab, and the driving safety is possibly endangered.
The utility model discloses a suspension assembly behind application number 201820649183.3 mainly comprises undersetting, spring damper assembly, locking support assembly, hydraulic pressure lock assembly, crossbeam. The lower support is fixedly connected with the frame through a bolt and a nut, the upper end of the spring shock absorber assembly is hinged with the hydraulic lock assembly through the bolt and the nut, and the lower end of the spring shock absorber assembly is hinged with the lower support through the bolt and the nut. The upper end of the locking support assembly is fixedly connected with the cab through bolts and nuts, and the lower end of the locking support assembly is matched with the hydraulic lock assembly after the cab falls back. The hydraulic lock assembly is hinged with the lower support through bolts and nuts. The cross beam is fixedly connected with the left lower support and the right lower support through bolts and nuts. The technical scheme improves the situation that the locking bracket is difficult to lock in the process of falling back of the cab.
The existing technical scheme of the rear suspension mainly uses a hydraulic lock and beam connection structure in the transverse direction, the structure is a single spiral spring, the overall weight is heavier due to the connection of the beams, and the single spiral spring structure cannot bear the load of a heavier cab, so that the comfort of the whole vehicle is poor; the locking support pin shaft cannot absorb high-frequency vibration transmitted by the chassis in the driving process; the impact force to the pin shaft is large in the process of locking the cab.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a suspension device and vehicle behind driver's cabin, weight is lighter, the shock attenuation is effectual, can reduce the impact force to the round pin axle, makes the vehicle have good travelling comfort at the in-process of traveling.
In view of the above, the present application provides a cab rear suspension device including:
the device comprises a supporting seat, a damping assembly, a swing arm assembly, a lock assembly and a locking support assembly;
the shock absorption assembly comprises at least 2 elastic supporting bodies, and the bottoms of the elastic supporting bodies are movably connected with the supporting seat through connecting pieces;
the two end parts of the swing arm assembly are respectively and movably connected with the supporting seat and the top of the elastic supporting body through connecting pieces;
the lock assembly is fixedly arranged on the swing arm assembly;
the locking support assembly comprises a locking support frame, a pin shaft and a damping bush;
the damping bushing is arranged in the locking support frame, and the pin shaft penetrates through the damping bushing; when the lock assembly is in a locking state, the pin shaft is limited in the lock assembly, and when the lock assembly is in an unlocking state, the pin shaft can be separated from the lock assembly to realize the overturning function of the cab.
Furthermore, the locking support frame comprises a connecting plate and two side plates arranged at the bottom of the connecting plate at intervals, and the side plates are respectively provided with a first mounting hole for assembling the damping bushing.
Further, the shock absorption bushing comprises a sleeve, and a rubber layer is arranged outside the sleeve.
Further, the elastic supporting body adopts a spiral spring shock absorber.
Further, the supporting seat comprises a first fixed end positioned at the lower part and a second fixed end positioned at the upper part, and the first fixed end is provided with a plurality of first mounting grooves for assembling the elastic supporting body; the second fixed end is provided with a second mounting groove for assembling the swing arm assembly.
Further, the swing arm subassembly includes swing arm connector, bush and sleeve pipe, the one end setting of swing arm connector is used for the assembly the second mounting hole of bush, the sleeve pipe sets up in the bush, the other end of swing arm connector sets up a plurality of third mounting grooves that are used for the assembly the elastic support body, follows the length direction setting of swing arm connector is used for the assembly the fourth mounting groove of tool to lock subassembly.
Furthermore, the tool to lock subassembly is including lock body and the spring bolt that is connected, when the tool to lock subassembly is in the closed lock state, the round pin axle is spacing in the lock body with between the spring bolt.
Furthermore, the hydraulic lock is detachably connected with the swing arm assembly through a connecting piece.
Furthermore, the lining is made of polyurethane.
The utility model provides a vehicle, which comprises a vehicle body, a cab and any one of the cab rear suspension device; the mounting seat is connected with the vehicle body through a connecting piece, and the locking support frame is connected with the cab through a connecting piece.
Adopt above-mentioned technical scheme, suspension device and vehicle behind the driver's cabin that this application provided, the technological effect who has:
the application provides suspension behind driver's cabin includes: the device comprises a supporting seat, a damping assembly, a swing arm assembly, a lock assembly and a locking support assembly; the shock absorption assembly comprises at least 2 elastic supporting bodies, and the bottoms of the elastic supporting bodies are movably connected with the supporting seat through connecting pieces; the two end parts of the swing arm component are respectively and movably connected with the supporting seat and the top of the elastic supporting body through connecting pieces; through at least 2 elastic supporting bodies, elastic support and buffering can be provided, vibration of the road surface can be filtered, and further the elastic support and buffering are provided for a cab, so that the comfort of the whole vehicle is improved; the lock assembly is fixedly arranged on the swing arm assembly; the locking support assembly comprises a locking support frame, a pin shaft and a damping bush; the damping bushing is arranged in the locking support frame, and the pin shaft penetrates through the damping bushing; when the lock assembly is in a locking state, the pin shaft is limited in the lock assembly, and when the lock assembly is in an unlocking state, the pin shaft can be separated from the lock assembly to realize the overturning function of the cab; the damping bush achieves the purposes of absorbing high-frequency vibration in the driving process and reducing abrasion of the pin shaft, so that the advantages of saving vehicle space, being good in stability and the like are achieved, and the vehicle can have good comfort in the driving process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rear suspension device of a cab according to an embodiment of the present disclosure;
fig. 2 is an exploded schematic view of a rear suspension device of a cab according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a damper bushing according to an embodiment of the present application.
Icon: 100-a support seat; 110-a first fixed end; 111-a first mounting groove; 120-a second fixed end; 121-a second mounting groove; 200-a shock absorbing assembly; 210-an elastic support; 300-a swing arm assembly; 310-a swing arm connection; 311-second mounting hole; 312-a third mounting groove; 313-a fourth mounting groove; 320-a liner; 330-a second sleeve; 400-a lock assembly; 500-locking bracket assembly; 510-locking the supporting frame; 511-connecting plate; 512-side plate; 513 — a first mounting hole; 520-pin shaft; 530-shock absorbing bushing; 531-first sleeve; 532-rubber layer.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 shows a schematic view of a rear cab suspension provided in an embodiment of the present application; fig. 2 is an exploded schematic structural diagram of a rear suspension device of a cab according to an embodiment of the present application.
Specifically, as shown in fig. 1 and fig. 2, the cab rear suspension device provided by the embodiment of the application has the advantages of reliable operation, space saving, long service life, good stability and the like, and can enable a vehicle to have good comfort in a driving process.
This suspension device behind driver's cabin includes: support base 100, shock-absorbing assembly 200, swing arm assembly 300, lock assembly 400 and locking bracket assembly 500.
The support base 100 plays a role of supporting the shock absorbing assembly 200 and the swing arm assembly 300 on one hand, and plays a role of connecting the vehicle body on the other hand;
the damping assembly 200 can provide elastic support and buffering for the swing arm assembly 300 and the locking bracket assembly 500, and can filter the vibration of the road surface, so that the elastic support and buffering are provided for the cab, and the comfort of the whole vehicle is improved;
the swing arm assembly 300 is mainly used for connecting the lockset assembly 400 and the shock absorption assembly 200, absorbing high-frequency vibration and further providing elastic buffering for a cab;
the lock assembly 400 has the function of ensuring that the lock assembly 400 is locked during the running process of the vehicle and a hydraulic lock can be normally unlocked when a driver needs to turn over a cab, so that the cab can be smoothly turned over;
the effect of locking bracket component 500 is connected the driver's cabin, and tool to lock subassembly 400 is opened when the driver's cabin upset, and locking bracket component 500 links and breaks away from tool to lock subassembly 400 with the driver's cabin, realizes the upset function of driver's cabin, and locking bracket component 500 is fixed with tool to lock subassembly 400 during the driver's cabin return, plays and absorbs high frequency vibration, avoids the effect of noise.
Specifically, the shock absorbing assembly 200 in this embodiment includes at least 2 elastic supporting bodies 210, and the bottom of the elastic supporting bodies 210 is movably connected to the supporting seat 100 through a connecting member;
the two ends of the swing arm assembly 300 are respectively movably connected with the top of the supporting seat 100 and the top of the elastic supporting body 210 through connecting pieces;
preferably, foretell elastic support body 210 can adopt the coil spring bumper shock absorber, during the installation, coil spring bumper shock absorber bottom is through connecting piece and 100 swing joint of supporting seat, connecting piece and swing arm subassembly 300 swing joint are passed through at the top of coil spring bumper shock absorber, utilize 2 at least coil spring bumpers, can realize the lightweight requirement, and, the coil spring bumper shock absorber comprises coil spring and bumper shock absorber, coil spring provides elastic support and buffering, filter the road surface vibration, improve the travelling comfort of whole car, the bumper shock absorber produces damping force by the inside fluid flow through the valve hole, play the effect of damping vibration.
Of course, the elastic support body 210 is not limited to the structure type of the coil spring damper, and other types commonly used for rubber dampers, air-filled dampers, and the like may be used.
In addition, it should be noted that the connecting piece adopts a matching form of a bolt and a nut, and the purpose of convenient disassembly and assembly is achieved.
The lock assembly 400 in this embodiment is fixedly mounted on the swing arm assembly 300;
the locking bracket assembly 500 comprises a locking support frame 510, a pin 520 and a shock-absorbing bushing 530;
the shock-absorbing bushing 530 is arranged in the locking support frame 510, and the pin shaft 520 penetrates through the shock-absorbing bushing 530; when the lock assembly 400 is in the locked state, the pin 520 is trapped in the lock assembly 400, and when the lock assembly 400 is in the unlocked state, the pin 520 can be disengaged from the lock assembly 400.
The cab rear suspension device adopting the structure uses 2 elastic supporting bodies 210, the lightweight use requirement of the rear suspension can be met, the damping bushing 530 achieves the purposes of absorbing high-frequency vibration in the driving process and reducing abrasion of the pin shaft 520, the vehicle space is saved, the stability is good, and the like, and the vehicle has good comfort in the driving process.
In this embodiment, the pin 520 may be made of 40Cr, 45Cr, 35CrMo, 42CrMo, or other ultra-high strength alloy steels, so that it has better impact toughness.
In this embodiment, referring to fig. 3, the damper bushing 530 includes a sleeve 531, and a rubber layer 532 is disposed outside the first sleeve 531; the damping bushing 530 is vulcanized by using natural rubber and a metal sleeve to absorb high-frequency vibration during driving and reduce abrasion of the pin 520.
In this embodiment, the locking support frame 510 includes a connecting plate 511 and two side plates 512 arranged at the bottom of the connecting plate 511 at intervals, the connecting plate 511 and the two side plates 512 are in an inverted U shape, the two side plates 512 are respectively provided with first mounting holes 513 for assembling the damping bushings 530, the axes of the two first mounting holes 513 require coaxial arrangement, and the damping bushings 530 are provided with 2 damping bushings, and are respectively and conveniently arranged in the two first mounting holes 513 for mounting the hinge pin 520.
The support base 100 of the present embodiment is approximately L-shaped as a whole, and includes a first fixing end 110 at a lower portion and a second fixing end 120 at an upper portion, wherein the first fixing end 110 is provided with a plurality of first mounting grooves 111 for mounting the elastic support 210; a plurality of first mounting grooves 111 are arranged side by side, and the elastic support body 210 is detachably mounted in the first mounting grooves 111 through a connector;
the second fixing end 120 is provided with a second mounting groove 121 for fitting the swing arm assembly 300.
The swing arm assembly 300 comprises a swing arm connecting body 310, a bushing 320 and a second sleeve 330, wherein one end of the swing arm connecting body 310 is provided with a second mounting hole 311 for assembling the bushing 320, the section of the bushing 320 is T-shaped, namely, the diameter of the end part, far away from the second mounting hole 311, of the bushing 320 is larger than that of the second mounting hole 311, the second sleeve 330 is arranged in the bushing 320, the guiding effect on a bolt is achieved, and the swing arm connecting body 310 is movably connected with the supporting seat 100 through the bolt sequentially penetrating through the bushing 320 and the second sleeve 330;
the other end of the swing arm connector 310 is provided with a plurality of third mounting grooves 312 for mounting the elastic support 210, and a fourth mounting groove 313 for mounting the latch assembly 400 is provided along the length direction of the swing arm connector 310.
Preferably, the liner 320 is made of polyurethane, and the polyurethane liner 320 absorbs high-frequency vibration.
In this embodiment, the lock assembly 400 is a hydraulic lock, the lock assembly 400 includes a lock body and a lock tongue connected to each other, and when the lock assembly 400 is in the off-lock state, the pin 520 is limited between the lock body and the lock tongue, and it should be noted here that the lock assembly 400 is a conventional component in the prior art, and therefore the structure thereof is not described in detail in this embodiment.
Preferably, the hydraulic lock is detachably connected with the swing arm assembly 300 through a connecting piece, so that the hydraulic lock is conveniently detached and replaced.
In addition, the embodiment also provides a vehicle, which comprises a vehicle body, a cab and the cab rear suspension device;
in practical application, the mounting seat is connected with the vehicle body through a connecting piece, and the locking support frame 510 is connected with the cab through a connecting piece.
Therefore, in the running process of the vehicle or when the cab is reset and locked, the buffer and shock absorption effects are achieved, and the comfort of the whole vehicle is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A cab rear suspension device, comprising: the device comprises a supporting seat, a damping assembly, a swing arm assembly, a lock assembly and a locking support assembly;
the shock absorption assembly comprises at least 2 elastic supporting bodies, and the bottoms of the elastic supporting bodies are movably connected with the supporting seat through connecting pieces;
the two end parts of the swing arm assembly are respectively and movably connected with the supporting seat and the top of the elastic supporting body through connecting pieces;
the lock assembly is fixedly arranged on the swing arm assembly;
the locking support assembly comprises a locking support frame, a pin shaft and a damping bush;
the damping bushing is arranged in the locking support frame, and the pin shaft penetrates through the damping bushing; when the lock assembly is in a locking state, the pin shaft is limited in the lock assembly, and when the lock assembly is in an unlocking state, the pin shaft can be separated from the lock assembly to realize the overturning function of the cab.
2. The rear suspension device for the cab of claim 1, wherein the locking support frame comprises a connecting plate and two side plates arranged at the bottom of the connecting plate at intervals, and first mounting holes for mounting the shock-absorbing bushings are respectively arranged on the side plates.
3. The cab rear suspension device according to claim 1, wherein the damper bushing includes a sleeve, and a rubber layer is provided outside the sleeve.
4. The cab rear suspension device according to claim 1, wherein the elastic support body employs a coil spring damper.
5. The cab rear suspension apparatus of claim 1, wherein the supporting base includes a first fixed end at a lower portion and a second fixed end at an upper portion, the first fixed end being provided with a plurality of first mounting grooves for mounting the elastic supporting body; the second fixed end is provided with a second mounting groove for assembling the swing arm assembly.
6. The rear suspension device for the cab as claimed in claim 1, wherein the swing arm assembly comprises a swing arm connector, a bushing and a sleeve, wherein one end of the swing arm connector is provided with a second mounting hole for assembling the bushing, the sleeve is arranged in the bushing, the other end of the swing arm connector is provided with a plurality of third mounting grooves for assembling the elastic support body, and a fourth mounting groove for assembling the lock assembly is arranged along the length direction of the swing arm connector.
7. The cab rear suspension device of claim 1, wherein the lock assembly includes a lock body and a lock tongue connected together, and the pin is captured between the lock body and the lock tongue when the lock assembly is in the locked state.
8. The cab rear suspension device according to claim 1 or 7, wherein the lock assembly is a hydraulic lock detachably connected to the swing arm assembly through a connecting member.
9. The rear suspension of claim 6, wherein the bushing is formed of polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021342925.1U CN213008430U (en) | 2020-07-09 | 2020-07-09 | Cab rear suspension device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021342925.1U CN213008430U (en) | 2020-07-09 | 2020-07-09 | Cab rear suspension device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213008430U true CN213008430U (en) | 2021-04-20 |
Family
ID=75502158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021342925.1U Active CN213008430U (en) | 2020-07-09 | 2020-07-09 | Cab rear suspension device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213008430U (en) |
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2020
- 2020-07-09 CN CN202021342925.1U patent/CN213008430U/en active Active
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