Passenger car suspension thrust rod mounting structure and passenger car

Abstract

The utility model discloses a passenger car suspension thrust rod mounting structure and a passenger car, which belong to the technical field of passenger cars and comprise a perforated rectangular tube, a reinforcing steel plate and a thrust rod fixing block. Open holes are formed in the front part and the rear part of the perforated rectangular pipe, the open hole in the front part is a special-shaped hole, and the open hole in the rear part is a square hole; reinforcing steel plates are arranged at the upper end and the lower end of the inner side of the open hole, thrust rod fixing blocks are embedded into the left end and the right end of the inner side of the open hole, and grooves are formed in the middles of the thrust rod fixing blocks. The structural strength of the mounting part of the V-shaped thrust rod and the precision of the mounting position can be ensured, and the bulb of the V-shaped thrust rod can flexibly swing along with the angle.

Description

Technical Field

[0001] The utility model belongs to the technical field of passenger buses, and particularly relates to an installation structure of a thrust rod of a passenger bus suspension and a passenger bus. Background Technique

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] At present, with the booming of the tourism passenger transport market, people obviously pay more attention to the comfort experience of travel. For passenger buses, the comfort of carrying air suspension is significantly better than that of leaf spring suspension, and the air suspension can be further divided into integral suspension and independent suspension. With the increasingly wide application of air suspension in the passenger bus market, people are more inclined to choose passenger buses equipped with front axle independent suspension. According to different layout forms of the independent suspension, the installation structure of the independent suspension on the frame is becoming more and more complex. Therefore, the installation structure of the air suspension thrust rod is the key design object of the frame.

[0004] According to different layout forms of the air suspension, the thrust rod is divided into straight thrust rod, V-shaped thrust rod, transverse thrust rod, etc. Usually, the fixed seat of the V-shaped thrust rod is welded on the main body of the frame to install the V-shaped thrust rod. The structural strength of the installation part of the V-shaped thrust rod and the accuracy of the installation position are crucial for the frame. Therefore, safety, reliability, durability, light structure and installation convenience become the key factors for evaluating the frame installation structure. Summary of the Utility Model

[0005] Aiming at the above problems, the utility model provides an installation structure of a thrust rod of a passenger bus suspension and a passenger bus, which can ensure the structural strength of the installation part of the V-shaped thrust rod and the accuracy of the installation position, and ensure that the ball head of the V-shaped thrust rod swings flexibly with the angle.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An installation structure of a thrust rod of a passenger bus suspension and a passenger bus include an open-hole rectangular tube, a reinforcing steel plate and a thrust rod fixing block; openings are provided at the front and rear parts of the open-hole rectangular tube, the opening at the front part is a special-shaped hole, and the opening at the rear part is a square hole; reinforcing steel plates are arranged at the upper and lower ends inside the opening, thrust rod fixing blocks are embedded at the left and right ends inside the opening, and a groove is provided in the middle of the thrust rod fixing block.

[0008] Further, special-shaped holes are opened at both ends of the front part of the open-hole rectangular tube, and the sizes of the special-shaped holes at both ends are the same.

[0009] Further, the cross-sectional shape of the middle part of the special-shaped hole is a hexagon, the cross-sectional shapes of both ends of the special-shaped hole are rectangles, and the hexagon and the rectangle are connected to form the special-shaped hole together.

[0010] Further, square holes are opened at both ends of the rear part of the perforated rectangular pipe, and the sizes of the square holes at both ends are the same.

[0011] Further, both ends of the reinforcing steel plate are of a bent structure, and the outer surface of the reinforcing steel plate fits with the inner surfaces of the upper and lower ends of the special-shaped hole.

[0012] Further, the thickness of the reinforcing steel plate is less than the thickness of the perforated rectangular pipe.

[0013] Further, a bevel is provided at the edge position of the thrust rod fixing block.

[0014] Further, fixing holes are provided at both ends of the thrust rod fixing block, and the fixing holes at both ends are symmetrically arranged; the fixing holes at both ends penetrate through the thrust rod fixing block, and the distance between the fixing holes at both ends is the same as the distance between the fixing holes of the V-shaped thrust rod.

[0015] Further, the outer surface of the upper end of the thrust rod fixing block fits with the inner surfaces of the left and right ends of the special-shaped hole, and the outer surface of the lower end of the thrust rod fixing block fits with the inner surface of the square hole.

[0016] A bus includes a bus suspension thrust rod mounting structure, and the bus suspension thrust rod mounting structure is a component of the bus.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0018] In the present utility model, a thrust rod fixing block is embedded in a perforated rectangular pipe. The irregular hole positions on one side of the perforated rectangular pipe leave gaps for the installation of the ball head of the V-shaped thrust rod, ensuring that the ball head of the V-shaped thrust rod swings flexibly with the angle. The overall perforated rectangular pipe is a large-section cold-bent welded pipe with a continuous root. By adopting the overall hole-opening method of the rectangular pipe, the fixing structure precision of the V-shaped thrust rod is ensured, and errors during the construction process are avoided. At the same time, this structure integrates the V-shaped thrust rod mounting structure with the rectangular pipe longitudinal beam of the vehicle frame, ensuring the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0020] Figure 1 It is an isometric view of the bus suspension thrust rod mounting structure in the first embodiment of the present utility model;

[0021] Figure 2 It is a front view of the bus suspension thrust rod mounting structure in the first embodiment of the present utility model;

[0022] Figure 3Isometric view of the thrust rod mounting structure in Embodiment 1 of the present utility model;

[0023] Figure 4 Front view of the thrust rod mounting structure in Embodiment 1 of the present utility model;

[0024] Figure 5 Top view of the thrust rod mounting structure in Embodiment 1 of the present utility model;

[0025] Figure 6 Front view of the rectangular opening of the perforated rectangular pipe in Embodiment 1 of the present utility model;

[0026] Figure 7 Front view of the irregular opening of the perforated rectangular pipe in Embodiment 1 of the present utility model;

[0027] Figure 8 Front view of the reinforcing steel plate in Embodiment 1 of the present utility model;

[0028] Figure 9 Top view and cross-sectional view of the thrust rod fixing block in Embodiment 1 of the present utility model;

[0029] In the figure, 1. Air suspension, 2. V-shaped thrust rod, 3. Thrust rod mounting structure, 4. Perforated rectangular pipe, 5. Reinforcing steel plate, 6. Thrust rod fixing block, 7. Square hole, 8. Special-shaped hole, 9. Fixing hole. Detailed implementation manners

[0030] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0031] Embodiment 1:

[0032] The following combines with the attached drawings to describe the present utility model in detail. A bus suspension thrust rod mounting structure disclosed in this embodiment is as Figure 1 shown, including a perforated rectangular pipe 4, a reinforcing steel plate 5 and a thrust rod fixing block 6; the front and rear parts of the perforated rectangular pipe 4 are provided with openings, the opening at the front is a special-shaped hole 8, and the opening at the rear is a square hole 7; the upper and lower ends inside the opening are provided with a reinforcing steel plate 5, the left and right ends inside the opening are embedded with the thrust rod fixing block 6, and the middle part of the thrust rod fixing block 6 is provided with a groove.

[0033] As Figure 2As shown, the air suspension 1 includes a V-shaped thrust rod 2, and the V-shaped thrust rod 2 is bolted to the thrust rod mounting structure 3. The V-shaped thrust rod 2 is mounted on the thrust rod mounting structure 3, and the thrust rod mounting structure 3 is composed of a perforated rectangular pipe 4, four reinforcing steel plates 5, and two thrust rod fixing blocks 6. The four reinforcing steel plates 5 are inserted from one side of the special-shaped hole 8 of the perforated rectangular pipe 4 to form a closed structure with the opening of the perforated rectangular pipe 4 and are integrally formed by welding to ensure the strength of the thrust rod mounting structure 3.

[0034] The perforated rectangular pipe 4 is made of a large-section cold-formed welded pipe, with a cross-sectional size of 160*60mm and a wall thickness of 6mm. The material is not limited to 510L. As Figure 6 shown, a square hole 7 is opened at the rear of the perforated rectangular pipe 4, and a special-shaped hole 8 is opened at the front of the perforated rectangular pipe 4. There are the above two openings at the front and rear of the perforated rectangular pipe 4, and the spacing is not centrosymmetric. As Figure 7 shown, special-shaped holes 8 are opened at both ends of the front part of the perforated rectangular pipe 4, and the sizes of the special-shaped holes 8 at both ends are the same. The cross-sectional shape in the middle of the special-shaped hole 8 is a hexagon, and the cross-sectional shapes at both ends of the special-shaped hole 8 are rectangles. The hexagon and the rectangle are joined together to form the special-shaped hole 8. Square holes 7 are opened at both ends of the rear part of the perforated rectangular pipe 4, and the sizes of the square holes 7 at both ends are the same.

[0035] As Figure 8 shown, both ends of the reinforcing steel plate 5 are bent structures, with a plate thickness of 6mm. The material is not limited to 510L. As Figure 4 shown, the outer surface of the reinforcing steel plate 5 fits with the inner surfaces of the upper and lower ends of the special-shaped hole 8. The thickness of the reinforcing steel plate 5 is less than the thickness of the perforated rectangular pipe 4. The reinforcing steel plate 5 is made of a solid steel plate and has an irregular bending angle. The irregular bending angle of the reinforcing steel plate 5 fits the shape of the special-shaped hole 8 at the front of the perforated rectangular pipe 4. The reinforcing steel plate 5 is inserted and welded from one side of the special-shaped hole 8 of the perforated rectangular pipe 4, and the width of the reinforcing steel plate 5 is the same as the size of the perforated rectangular pipe 4 minus the wall thickness, ensuring that the outer planes are flush after the reinforcing steel plate 5 is inserted into the perforated rectangular pipe 4.

[0036] As Figure 9 shown, a groove is provided at the edge position of the thrust rod fixing block 6. As Figure 5 shown, fixing holes 9 are provided at both ends of the thrust rod fixing block 6, and the fixing holes 9 at both ends are symmetrically arranged; the fixing holes 9 at both ends penetrate through the thrust rod fixing block 6, and the spacing between the fixing holes 9 at both ends is the same as the spacing of the V-shaped thrust rod fixing holes. As Figure 3 shown, the outer surface of the upper end of the thrust rod fixing block 6 fits with the inner surfaces of the left and right ends of the special-shaped hole 8, and the outer surface of the lower end of the thrust rod fixing block 6 fits with the inner surface of the square hole 7.

[0037] The thrust rod fixing block 6 is a solid rectangular steel block with chamfers on the peripheral edge of the edge. There is a groove on one side in the middle of the long side. The groove part is provided to avoid the ball head of the V-shaped thrust rod 2, so that the V-shaped thrust rod 2 can swing flexibly with the angle, and the installation space for the ball head of the V-shaped thrust rod 2 is formed by the gap between the upper and lower of the special-shaped hole 8 of the perforated rectangular pipe 4. The top view section of the thrust rod fixing block 6 has two fixing holes 9, the distance between which is the same as the distance between the fixing holes of the V-shaped thrust rod, and the diameter of the fixing hole 9 is the same as the diameter of the fixing hole of the V-shaped thrust rod. The fixing holes 9 at both ends are through holes. After four reinforcing steel plates 5 are welded to the perforated rectangular pipe 4, the thrust rod fixing block 6 is inserted from one side of the special-shaped hole 8 of the perforated rectangular pipe 4. The side of the thrust rod fixing block 6 with the groove faces the side of the special-shaped hole 8 of the perforated rectangular pipe 4. The side of the thrust rod fixing block 6 without the groove is flush with the side of the square hole 7 of the perforated rectangular pipe 4. The connection methods of the two thrust rod fixing blocks 6 and the perforated rectangular pipe 4 are the same, and they are integrally formed by welding, greatly improving the strength.

[0038] The thrust rod installation structure 3 is a highly integrated design composed of three parts: the perforated rectangular pipe 4, the reinforcing steel plate 5, and the thrust rod fixing block 6. The periphery of the opening of the perforated rectangular pipe 4 is welded with the reinforcing steel plate 5 for reinforcement. The thrust rod fixing block 6 is inserted into the perforated rectangular pipe 4 and integrated with the perforated rectangular pipe 4. At the same time, the perforated rectangular pipe 4 is used as the main body of the left and right longitudinal beam structures of the vehicle frame, which can not only ensure the strength of the fixing structure of the V-shaped thrust rod 2, but also be integrated with the vehicle frame structure design, with simple installation and light structure.

[0039] Embodiment 2:

[0040] A bus includes a bus suspension thrust rod installation structure 3, and the bus suspension thrust rod installation structure 3 is a component of the bus.

[0041] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. An installation structure of a suspension thrust rod for a passenger car, characterized in that It includes an open-hole rectangular tube, a reinforcing steel plate, and a thrust rod fixing block; openings are provided at the front and rear of the open-hole rectangular tube, the opening at the front is a special-shaped hole, and the opening at the rear is a square hole; reinforcing steel plates are arranged at the upper and lower ends inside the opening, and thrust rod fixing blocks are embedded at the left and right ends inside the opening, and a groove is provided in the middle of the thrust rod fixing block.

2. The installation structure of a bus suspension thrust rod according to claim 1, characterized in that, Special-shaped holes are opened at both ends of the front part of the open-hole rectangular tube, and the sizes of the special-shaped holes at both ends are the same.

3. The installation structure of a bus suspension thrust rod according to claim 2, characterized in that The cross-sectional shape in the middle of the special-shaped hole is a hexagon, the cross-sectional shapes at both ends of the special-shaped hole are rectangles, and the hexagon and the rectangle are connected together to form the special-shaped hole.

4. The installation structure of a bus suspension thrust rod according to claim 1, characterized in that, Square holes are opened at both ends of the rear part of the open-hole rectangular tube, and the sizes of the square holes at both ends are the same.

5. The installation structure of a bus suspension thrust rod according to claim 1, characterized in that, Both ends of the reinforcing steel plate are in a bent structure, and the outer surface of the reinforcing steel plate fits with the inner surface of the upper and lower ends of the special-shaped hole.

6. The installation structure of a bus suspension thrust rod according to claim 1, characterized in that, The thickness of the reinforcing steel plate is less than the thickness of the open-hole rectangular tube.

7. The installation structure of a bus suspension thrust rod according to claim 1, characterized in that, A bevel is provided at the edge position of the thrust rod fixing block.

8. The installation structure of a bus suspension thrust rod according to claim 1, characterized in that, Fixing holes are provided at both ends of the thrust rod fixing block, and the fixing holes at both ends are symmetrically arranged; the fixing holes at both ends penetrate through the thrust rod fixing block, and the distance between the fixing holes at both ends is the same as the distance between the V-shaped thrust rod fixing holes.

9. The installation structure of a bus suspension thrust rod according to claim 1, characterized in that, The outer surface of the upper end of the thrust rod fixing block fits with the inner surface of the left and right ends of the special-shaped hole, and the outer surface of the lower end of the thrust rod fixing block fits with the inner surface of the square hole.

10. A passenger vehicle, characterized in that, It includes the bus suspension thrust rod mounting structure according to any one of claims 1-9, and the bus suspension thrust rod mounting structure is a component of the bus.

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