CN218519762U - Multi-direction self-limiting cab rear suspension device and heavy commercial vehicle - Google Patents

Abstract

The utility model relates to a commercial car technical field, specifically a multi-direction is from spacing driver's cabin rear overhang device and heavy commercial car, including bumper shock absorber upper bracket assembly, bumper shock absorber lower bracket assembly, coil spring damping bumper shock absorber assembly, connecting piece, bumper shock absorber upper bracket assembly inside is equipped with the spout along upper and lower direction, bumper shock absorber lower bracket assembly swing joint is in the spout, connect coil spring damping bumper shock absorber assembly between bumper shock absorber upper bracket assembly and the bumper shock absorber lower bracket assembly, the relative position in the left and right sides of bumper shock absorber upper bracket assembly all is equipped with two at least spacing grooves; the utility model discloses a guiding mechanism's structure is retrencied more, and intensity is higher when rocking around the antagonism driver's cabin.

Description

Multi-direction self-limiting cab rear suspension device and heavy commercial vehicle

Technical Field

The utility model relates to a commercial car technical field specifically is a multi-direction from spacing driver's cabin rear overhang device and heavy commercial car.

Background

The cab suspension system is an elastic support for connecting a vehicle body and a vehicle frame, and has the main functions of: firstly, the cab is fixed by the fixing and supporting function, and the weight of the cab is borne; the vibration isolation function is used for isolating the steady-state excitation transmitted from the road surface to the cab and isolating the transient excitation transmitted from the uneven road surface to the cab; and thirdly, the limiting function is used for limiting the maximum displacement of the cab and avoiding interference with other parts.

The weight of the cab of the heavy commercial vehicle generally exceeds 2000kg, the running working condition of the vehicle is complex and severe, and the vehicle is excited by the road surface and the vibration of an engine in the running process, so that the requirements on vibration isolation and limitation are high.

The patent with the publication number of CN202508182U discloses a rear suspension device of a heavy-duty car cab, two sides of the cab are respectively provided with a wire mechanism and two spring damping mechanisms, the middle of a left upright post and a right upright post is provided with a guide mechanism, and two problems exist in the scheme: 1. the structure of the guide mechanism is not simplified enough, and the assembly connection between the spring damping mechanism and the guide mechanism is not simplified enough; 2. the strength of the guide mechanism is not high enough to resist the forward and backward shaking of the cab.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a multi-direction is from spacing driver's cabin rear overhang device and heavy commercial car to solve heavy commercial car rear overhang device guiding mechanism structure retrench inadequately, spring damping mechanism retrencies inadequately and guiding mechanism rocks the time problem that intensity is high inadequately around the opposition driver's cabin.

In order to realize the above-mentioned purpose, the utility model provides a multi-direction is from spacing driver's cabin rear overhang device, including shock absorber upper bracket assembly, shock absorber lower bracket assembly, coil spring damping shock absorber assembly, the connecting piece, shock absorber upper bracket assembly is inside to be equipped with the spout along upper and lower direction, shock absorber lower bracket assembly swing joint is in the spout, connect coil spring damping shock absorber assembly between shock absorber upper bracket assembly and the shock absorber lower bracket assembly, the relative position of the left and right sides of shock absorber upper bracket assembly all is equipped with two at least spacing grooves.

Further, the connecting piece comprises a bolt, the limit groove is internally connected with the upper shock absorber support assembly and the lower shock absorber support assembly through the bolt, and two ends of the spiral spring damping shock absorber assembly are respectively connected with the upper shock absorber support assembly and the lower shock absorber support assembly through the bolt.

Furthermore, the connecting piece still includes sliding sleeve, gasket, and the sliding sleeve cover is established between the bolt of spacing inslot portion and spacing inslot portion, and the gasket setting is in the both sides of the bolt that is located the spacing inslot.

Furthermore, the hydraulic locking device further comprises a rear suspension support, a hydraulic lock and a rear suspension support, wherein the rear suspension support is welded on the cab beam, the hydraulic lock is fixedly connected to the top of the upper support assembly, and the hydraulic lock is used for locking the upper support assembly of the shock absorber and the rear suspension support.

Furthermore, the rear overhang support comprises a locking part, the locking part comprises a bottom plate, a vertical plate and a taper pin are fixedly connected to the bottom of the bottom plate, a lock pin is arranged on the vertical plate, and a taper hole matched with the lock pin is formed in the top of the shock absorber upper support assembly.

Furthermore, the shock absorber lower bracket assembly comprises two parallel side plates, the rear sides of the two side plates are provided with rear plates, and the front sides of the two side plates are provided with front plates.

The utility model also provides a heavy commercial car, including foretell multidirectional from spacing driver's cabin rear overhang device.

The utility model has the advantages that:

1. a sliding groove and a bolt are arranged at the joint of the upper bracket assembly of the shock absorber and the lower bracket assembly of the shock absorber to serve as a limiting guide mechanism, so that the structure of the guide mechanism is more simplified; through setting up coil spring damping bumper shock absorber assembly inside the bumper shock absorber upper bracket assembly for spring damping mechanism and guiding mechanism's be assembled and be connected more retrencied.

2. Because the shock absorber lower bracket assembly sets up inside the shock absorber upper bracket assembly, and the side between them corresponds each other, the side that the shock absorber lower bracket assembly set up the shock absorber upper bracket assembly when rocking around the driver's cabin resists rocking, so the intensity is higher when shaking around resisting the driver's cabin.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention.

FIG. 1 is an exploded view of a multi-directional self-limiting cab rear suspension;

FIG. 2 is a schematic structural view of a bracket assembly on a shock absorber;

FIG. 3 is a schematic view of the locking portion;

FIG. 4 is a schematic structural view of the sliding sleeve;

FIG. 5 is a schematic structural view of a lower bracket assembly of the shock absorber;

FIG. 6 is a schematic view of the assembly of the multi-directional self-limiting cab rear suspension;

in the figure: 1. a shock absorber upper bracket assembly; 11. a chute; 12. a limiting groove; 13. a taper hole; 2. a shock absorber lower bracket assembly; 3. a coil spring damping shock absorber assembly; 4. a connecting member; 41. a bolt; 42. a sliding sleeve; 43. a gasket; 5. hydraulic locking; 6. a rear overhang bracket; 61. a locking portion; 611. a base plate; 612. a vertical plate; 613. a taper pin; 614. and (4) locking a pin.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Multi-directional self-limiting cab rear suspension embodiment

Referring to fig. 1 and 6, according to the embodiment of the utility model, a multi-direction is from spacing driver's cabin rear overhang device is provided, including bumper shock absorber upper bracket assembly 1, bumper shock absorber lower carriage assembly 2, coil spring damping bumper shock absorber assembly 3, connecting piece 4, hydraulic pressure lock 5, rear overhang support 6.

Referring to fig. 1 and 2, a chute 11 is arranged in the upper shock absorber bracket assembly 1 along the vertical direction, the lower shock absorber bracket assembly 2 is movably connected in the chute 11, a coil spring damping shock absorber assembly 3 is connected between the upper shock absorber bracket assembly 1 and the lower shock absorber bracket assembly 2, and at least two limiting grooves 12 are arranged at opposite positions of the left side and the right side of the upper shock absorber bracket assembly 1; the top of the shock absorber upper bracket assembly 1 is fixedly connected with a hydraulic lock 5, the hydraulic lock 5 is used for locking the upper bracket assembly 1 and the rear suspension bracket 6, and the top of the shock absorber upper bracket assembly 1 is provided with a taper hole 13 used for being matched with the lock pin 613.

Referring to fig. 1 and 5, the shock absorber lower bracket assembly 2 includes two parallel side plates 21, a rear plate 23 is disposed at the rear side of the two side plates 21, and a front plate 22 is disposed at the front side of the two side plates 21.

Referring to fig. 1, 4 and 6, the connecting member 4 includes a bolt 41, a sliding sleeve 42 and a gasket 43, the front end of the bolt 41 is provided with a thread, the limiting groove 12 is internally connected with the upper bracket assembly 1 of the shock absorber and the lower bracket assembly 2 of the shock absorber by setting the bolt 41, and two ends of the coil spring damping shock absorber assembly 3 are respectively connected with the upper bracket assembly 1 of the shock absorber and the lower bracket assembly 2 of the shock absorber by the bolt 41; the sliding sleeve 42 is sleeved between the limiting groove 12 and the bolt 41 inside the limiting groove 12, and the gasket 43 is arranged on two sides of the bolt 41 in the limiting groove 12.

Referring to fig. 1 and 3, a rear suspension bracket 6 is welded on a cab beam, the rear suspension bracket 6 includes a locking portion 61, the locking portion 61 includes a bottom plate 611, a vertical plate 612 and a taper pin 613 are fixedly connected to the bottom of the bottom plate 611, and a locking pin 614 is arranged on the vertical plate 612.

Heavy commercial vehicle embodiment

A heavy commercial vehicle comprises the multi-direction self-limiting cab rear suspension device.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a multi-direction is from spacing driver's cabin rear overhang device, includes bumper shock absorber upper bracket assembly (1), bumper shock absorber lower carriage assembly (2), coil spring damping bumper shock absorber assembly (3), connecting piece (4), its characterized in that, bumper shock absorber upper bracket assembly (1) is inside to be equipped with spout (11) along upper and lower direction, bumper shock absorber lower carriage assembly (2) swing joint is in spout (11), connect coil spring damping bumper shock absorber assembly (3) between bumper shock absorber upper bracket assembly (1) and bumper shock absorber lower carriage assembly (2), the relative position in the left and right sides of bumper shock absorber upper bracket assembly (1) all is equipped with two at least spacing grooves (12).

2. The multidirectional self-limiting cab rear suspension device according to claim 1, wherein the connecting piece (4) comprises a bolt (41), the limiting groove (12) is internally connected with the upper shock absorber bracket assembly (1) and the lower shock absorber bracket assembly (2) through the bolt (41), and two ends of the spiral spring damping shock absorber assembly (3) are respectively connected with the upper shock absorber bracket assembly (1) and the lower shock absorber bracket assembly (2) through the bolt (41).

3. The multi-directional self-limiting cab rear suspension device according to claim 2, wherein the connecting member (4) further comprises a sliding sleeve (42) and a gasket (43), the sliding sleeve (42) is sleeved between the limiting groove (12) and the bolt (41) inside the limiting groove (12), and the gasket (43) is arranged on two sides of the bolt (41) located in the limiting groove (12).

4. A multi-directional self-limiting cab rear suspension device according to claim 1, further comprising a rear suspension bracket (6) and a hydraulic lock (5), wherein the rear suspension bracket (6) is welded on a cab cross beam, the hydraulic lock (5) is fixedly connected to the top of the upper bracket assembly (1), and the hydraulic lock (5) is used for locking the shock absorber upper bracket assembly (1) and the rear suspension bracket (6).

5. The multi-directional self-limiting cab rear suspension device according to claim 4, wherein the rear suspension bracket (6) comprises a locking portion (61), the locking portion (61) comprises a bottom plate (611), a vertical plate (612) and a taper pin (613) are fixedly connected to the bottom of the bottom plate (611), a lock pin (614) is arranged on the vertical plate (612), and a taper hole (13) used for being matched with the taper pin (613) is arranged at the top of the shock absorber upper bracket assembly (1).

6. A multidirectional self-limiting cab rear suspension according to claim 1, wherein said shock absorber lower bracket assembly (2) comprises two parallel side plates (21), a rear plate (23) is provided at the rear side of the two side plates (21), and a front plate (22) is provided at the front side of the two side plates (21).

7. A heavy commercial vehicle comprising the multidirectional self-limiting cab rear suspension of claim 1.

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