Integrated cab rear suspension assembly

Abstract

The utility model relates to the technical field of rear suspension assemblies, in particular to an integrated cab rear suspension assembly. The integrated cab rear suspension assembly comprises a cross beam, lower suspension supports are fixedly installed on the lower surfaces of the beam faces on the two sides of the cross beam, sliding frames are installed on the upper surfaces of the beam faces on the two sides of the cross beam, and pull arm seats which are elastically connected are installed on the sliding frames. And an elastic connecting piece is arranged in the sliding frame. According to the integrated cab rear suspension assembly, due to the fact that the whole rear suspension assembly is integrally stressed through the design and the system, force transmission can be effectively conducted in the stress process, potential safety hazards caused by overlarge local stress are avoided, the pull arm base assemblies on the left side and the right side are connected through the elastic connecting piece, and therefore the whole rear suspension assembly is convenient to assemble and disassemble. The side-tipping amplitude in the driving process of the cab is effectively reduced, and the stability of the cab is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rear suspension assemblies, in particular to an integrated cab rear suspension assembly. Background Art

[0002] At present, there are two main types of cab suspension systems on the market: semi-floating suspension and floating suspension. Semi-floating suspension is rigidly connected to the cab, and the cab will vibrate with the vibration of the chassis. Although vulcanized rubber is used in the connection parts of the suspension to reduce vibration and noise, the effect is poor and the ride comfort is poor. The main difference between floating suspension and semi-floating suspension is that the cab and the suspension system are not directly rigidly connected, but are connected by springs or airbag shock absorbers. The advantage of this arrangement is that the vibration frequency of the cab during driving can be effectively reduced through the coil spring (or air bag) shock absorber, avoiding the cab and the chassis from forming a co-vibration during driving. At the same time, it can also effectively reduce the noise caused by high-frequency vibration and improve the comfort of the passengers. The two types of suspension systems have their own advantages and disadvantages. Although the floating suspension system performs better than the semi-floating suspension system in terms of body vibration acceleration and vibration frequency, the amplitude of the left and right swing of the body during driving is much larger than that of the semi-floating suspension system with rigid connection; the traditional floating suspension system still has the problem of insufficient stability of the cab during driving and large roll amplitude.

[0003] Therefore, it is necessary to provide a new integrated cab rear suspension assembly to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an integrated cab rear suspension assembly.

[0005] The integrated cab rear suspension assembly provided by the utility model comprises a cross beam, the lower surfaces of the beam surfaces on both sides of the cross beam are fixedly mounted with lower suspension supports, and the upper surfaces of the beam surfaces on both sides of the cross beam are mounted with sliding frames, and elastically connected pull arm seats are mounted on the sliding frames;

[0006] An elastic connector is arranged in the sliding frame, and the elastic connector includes a sliding seat, the sliding seat is inserted into the sliding frame and slidably connected with the sliding frame, a support tube is fixedly embedded in the upper surface of the sliding seat, and a spring is fixedly embedded in the lower surface of the sliding seat.

[0007] Preferably, an abutment column is fixedly engaged with the bottom of the sliding frame, and limiting ribs are fixedly engaged with the inner walls on both sides of the sliding frame.

[0008] Preferably, the spring fixedly engaged with the lower surface of the sliding seat is sleeved on the abutment column, and the lower end surface of the spring is fixedly connected to the inner bottom wall of the sliding frame.

[0009] Preferably, a through hole communicating with the support tube and coaxially arranged is provided in the sliding seat, and the sliding seat is sleeved on the abutment column through the through hole.

[0010] Preferably, both side walls of the sliding seat are provided with limiting grooves, and the sliding seat is slidably connected with the limiting ribs through the limited grooves.

[0011] Preferably, a central link assembly for connecting the sliding seat is installed on the side wall of the crossbeam, and the central link assembly includes a sleeve, a sliding rod with a sliding connection is inserted in the sleeve, and a piston is fixedly installed on the inserted end of the sliding rod, the connecting end of the sleeve is rotatably installed on the crossbeam, and the connecting end of the sliding rod is rotatably connected to the inner wall of the sliding seat.

[0012] Preferably, the arm seat is fixedly mounted on the top of the support tube.

[0013] Compared with the related art, the integrated cab rear suspension assembly provided by the utility model has the following advantages:

[0014] Beneficial effects:

[0015] The utility model adopts a design in which the entire rear suspension assembly is stressed as a whole, and force can be effectively transmitted during the stress-bearing process to avoid safety hazards caused by excessive local stress. The arm seat assemblies on the left and right sides are connected by elastic connecting parts, which effectively reduces the roll amplitude of the cab during driving and improves the stability of the cab. When the arm seat is stressed, the arm seat slides down along the abutment column with the support tube, and the sliding seat compresses the spring. At the same time, the sleeve and the sliding rod are deflected and stretched as the sliding seat rises and falls, which can more effectively resist the impact force received by the arm seats on the left and right sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of the integrated cab rear suspension assembly provided by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the beam shown;

[0018] Figure 3 for Figure 1 A schematic structural diagram of the elastic connecting member shown;

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the mid-link component shown.

[0020] Numbers in the figure: 1, crossbeam; 2, lower suspension support; 3, sliding frame; 31, abutment column; 32, limit rib; 4, pull arm seat; 5, elastic connector; 51, sliding seat; 52, support tube; 53, spring; 54, limit groove; 6, middle link assembly; 61, sleeve; 62, sliding rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] See also Figures 1 to 4 An embodiment of the utility model provides an integrated cab rear suspension assembly, which includes: a crossbeam 1 and an elastic connecting member 5.

[0024] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the lower surfaces of the beam surfaces on both sides of the cross beam 1 are fixedly mounted with lower suspension supports 2, and the upper surfaces of the beam surfaces on both sides of the cross beam 1 are mounted with sliding frames 3, and elastically connected pull arm seats 4 are mounted on the sliding frames 3, and elastic connectors 5 are arranged in the sliding frames 3, and the elastic connectors 5 include sliding seats 51, and the sliding seats 51 are inserted into the sliding frames 3 and slidably connected with the sliding frames 3, and the upper surface of the sliding seats 51 is fixedly embedded with a support tube 52, and the pull arm seats 4 are fixedly mounted on the top of the support tube 52, and the lower surface of the sliding seats 51 is fixedly embedded with a spring 53;

[0025] The bottom of the sliding frame 3 is fixedly engaged with an abutting column 31, and the inner walls on both sides of the sliding frame 3 are fixedly engaged with the limiting ribs 32. The spring 53 fixedly engaged with the lower surface of the sliding seat 51 is sleeved on the abutting column 31, and the lower end surface of the spring 53 is fixedly connected to the inner bottom wall of the sliding frame 3. The sliding seat 51 is provided with a through hole that is connected to the support tube 52 and is coaxially arranged, and the sliding seat 51 is sleeved on the abutting column 31 through the through hole.

[0026] A central link component 6 for connecting the sliding seat 51 is installed on the side wall of the crossbeam 1. The central link component 6 includes a sleeve 61, in which a sliding rod 62 with a sliding connection is inserted, and a piston is fixedly installed on the inserted end of the sliding rod 62. The connecting end of the sleeve 61 is rotatably installed on the crossbeam 1, and the connecting end of the sliding rod 62 is rotatably connected to the inner wall of the sliding seat 51.

[0027] It should be noted that: due to the design of the entire rear suspension assembly, the system is subjected to overall force, and force can be effectively transmitted during the force-bearing process to avoid safety hazards caused by excessive local force, and the arm seat 4 assemblies on the left and right sides are connected by the elastic connecting member 5, which effectively reduces the roll amplitude of the cab during driving and improves the stability of the cab. When the arm seat 4 is subjected to force, the arm seat 4 slides down along the abutment column 31 along with the support tube 52, and the sliding seat 51 compresses the spring 53. At the same time, the sleeve 61 and the sliding rod 62 deflect and stretch as the sliding seat 51 rises and falls, which can more effectively resist the impact force on the arm seats 4 on the left and right sides;

[0028] The two side walls of the sliding seat 51 are provided with limiting grooves 54 , and the sliding seat 51 is slidably connected to the limiting ribs 32 via the limiting grooves 54 , thereby improving the stability of the sliding seat 51 when sliding in the sliding frame 3 .

[0029] The working principle of the integrated cab rear suspension assembly provided by the utility model is as follows:

[0030] Due to the design of the entire rear suspension assembly, the system is subjected to overall force, and force can be effectively transmitted during the force-bearing process to avoid safety hazards caused by excessive local force. The arm seat 4 assemblies on the left and right sides are connected by an elastic connecting piece 5, which effectively reduces the roll amplitude of the cab during driving and improves the stability of the cab. When the arm seat 4 is subjected to force, the arm seat 4 slides down along the abutment column 31 along with the support tube 52, and the sliding seat 51 compresses the spring 53. At the same time, the sleeve 61 and the sliding rod 62 are deflected and stretched as the sliding seat 51 rises and falls, which can more effectively resist the impact force received by the arm seats 4 on the left and right sides.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An integrated cab rear suspension assembly, characterized in that: It comprises a crossbeam (1), the lower surfaces of the beam surfaces on both sides of the crossbeam (1) are fixedly mounted with lower suspension supports (2), and the upper surfaces of the beam surfaces on both sides of the crossbeam (1) are mounted with sliding frames (3), and the sliding frames (3) are mounted with elastically connected pull arm seats (4); An elastic connecting member (5) is arranged in the sliding frame (3), and the elastic connecting member (5) comprises a sliding seat (51), the sliding seat (51) is inserted into the sliding frame (3) and is slidably connected to the sliding frame (3), a support tube (52) is fixedly embedded on the upper surface of the sliding seat (51), and a spring (53) is fixedly embedded on the lower surface of the sliding seat (51).

2. The integrated cab rear suspension assembly according to claim 1, characterized in that: An abutment column (31) is fixedly engaged with the bottom of the sliding frame (3), and limiting ribs (32) are fixedly engaged with the inner walls on both sides of the sliding frame (3).

3. The integrated cab rear suspension assembly according to claim 2, characterized in that: The spring (53) fixedly engaged with the lower surface of the sliding seat (51) is sleeved on the abutment column (31), and the lower end surface of the spring (53) is fixedly connected to the inner bottom wall of the sliding frame (3).

4. The integrated cab rear suspension assembly according to claim 3, characterized in that: The sliding seat (51) is provided with a through hole which is in communication with the support tube (52) and is coaxially arranged, and the sliding seat (51) is sleeved on the abutment column (31) through the through hole.

5. The integrated cab rear suspension assembly according to claim 4, characterized in that: Both side walls of the sliding seat (51) are provided with limiting grooves (54), and the sliding seat (51) is slidably connected to the limiting ribs (32) via the limiting grooves (54).

6. The integrated cab rear suspension assembly according to claim 1, characterized in that: A central link assembly (6) for connecting to a sliding seat (51) is mounted on the side wall of the cross beam (1), the central link assembly (6) comprising a sleeve (61), a sliding rod (62) for sliding connection is inserted into the sleeve (61), and a piston is fixedly mounted on the inserted end of the sliding rod (62), the connecting end of the sleeve (61) is rotatably mounted on the cross beam (1), and the connecting end of the sliding rod (62) is rotatably connected to the inner wall of the sliding seat (51).

7. The integrated cab rear suspension assembly according to claim 1, characterized in that: The arm support seat (4) is fixedly mounted on the top of the support tube (52).

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