Frame with double-coupling thrust rod mounting structure

Abstract

The utility model relates to a frame with a double-coupling thrust rod mounting structure, which comprises longitudinal beams arranged in parallel, the section of each longitudinal beam is of an open groove-shaped structure, an upper connecting beam is fixedly mounted at the inner upper end of each longitudinal beam, and a lower connecting beam is mounted at the inner lower end of each longitudinal beam; a cross beam assembly is mounted between the upper connecting beam and the lower connecting beam; the double-coupling thrust rod assemblies are symmetrically installed on the two sides of the cross beam assembly. And the double-coupling thrust rod assembly comprises a thrust rod and a thrust rod mounting bracket. According to the frame with the double-coupling thrust rod mounting structure, the production process is simple, and the production efficiency is improved; the rear suspension system directly transmits force and torque to the frame longitudinal beam through the thrust rod, stress concentration of the balance shaft cross beam is avoided, the driving stability and controllability are improved, the failure rate of the balance shaft cross beam assembly is reduced, and the vehicle form is safer and more reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mounting structure especially a vehicle frame with double shaft thrust rod mounting structure. BACKGROUND

[0002] With the continuous progress of society, heavy truck industry as the main force of transportation has been rapid development. Heavy truck components many, balance shaft is the core component in the balance suspension system, in double axle vehicle frame transmission load evenly distributed to each axle, avoid single axle overload. Vehicle frame balance shaft beam main role is to connect left and right balance shaft, the vehicle frame stress evenly distributed, prevent the vehicle frame distortion. The thrust rod in the rear suspension is the key component of the suspension system, mainly used for transmitting force and torque, while constraint driving axle displacement, control the motion of the axle, ensure the vehicle stability and maneuverability.

[0003] Heavy truck frame balance shaft beam generally adopts integral casting structure, in the face of customer heavy load working condition and bad bumpy road, integral casting structure cannot satisfy the strength requirement. Through the continuous research and development of people, the vehicle frame balance shaft beam has adopted steel plate bending structure to replace the integral casting structure, but in the actual use process, the rear suspension thrust rod needs to be installed, which leads to complex production process of balance shaft beam, low efficiency, stress concentration of balance shaft beam at the thrust rod support is easy to cause the beam to crack, affect the vehicle stability and maneuverability, and seriously affect the driving safety.

[0004] In summary, the existing double shaft thrust rod mounting structure still has great defects, and cannot meet the needs of people's safe driving. SUMMARY

[0005] The utility model wants to solve the technical problem of: in order to solve the problem in the prior art, provide a kind of vehicle frame with double shaft thrust rod mounting structure, vehicle frame balance shaft beam is installed on the left and right longitudinal beam of vehicle frame, two side thrust rod support is installed on the upper and lower connecting beam of balance shaft beam, no need to install thrust rod support in the middle beam of balance shaft beam, production process is simple, improve production efficiency;Rear suspension system directly transmits force and torque to the longitudinal beam of vehicle frame by thrust rod, avoid stress concentration of balance shaft beam, improve driving stability and maneuverability, reduce the failure rate of balance shaft beam assembly, and the vehicle is more safe and reliable.

[0006] The utility model discloses a technical scheme that solves its technical problem is adopted: a car frame with double shaft coupling thrust rod mounting structure, including parallelly arranged longitudinal beam, the longitudinal beam section is the open groove shape structure, longitudinal beam inner upper end fixed mounting upper connecting beam, longitudinal beam inner lower end install lower connecting beam, the upper connecting beam and lower connecting beam between install crossbeam subassembly, the crossbeam subassembly includes the crossbeam of back to back arrangement, the crossbeam one side section is the open U shape structure, the U shape opening groove is seted up in the middle of the crossbeam both ends, the crossbeam both ends lower part is fixed on lower connecting beam, the crossbeam both ends upper part is fixed on upper connecting beam, and one side of upper connecting beam and one side of lower connecting beam are all fixed mounting on the inner side wall of longitudinal beam, the both sides symmetrical installation double shaft coupling thrust rod subassembly of crossbeam subassembly, double shaft coupling thrust rod subassembly includes thrust rod and thrust rod mounting support, and one end of the thrust rod of crossbeam subassembly one side meets with the axle connection, and the other end of thrust rod passes through U shape opening groove and is fixed on upper connecting beam and lower connecting beam through thrust rod mounting support.

[0007] Further limit, in the above technical scheme, the lower end of crossbeam subassembly installs balance shaft, and both ends of balance shaft are installed on the side wall of longitudinal beam through bearing.

[0008] Further limit, in the above technical scheme, the lower end of balance shaft installs balance shaft lower connecting beam.

[0009] Further limit, in the above technical scheme, the inner side of longitudinal beam still is provided with car frame longitudinal beam inner web.

[0010] Further limit, in the above technical scheme, the end of longitudinal beam is vertically installed car frame tail crossbeam.

[0011] Further limit, in the above technical scheme, the middle of crossbeam is provided with round lightening hole.

[0012] Further limit, in the above technical scheme, the inner of both ends of crossbeam still is provided with reinforcing plate, and the reinforcing plate is arranged on the inner wall of crossbeam respectively.

[0013] Further limit, in the above technical scheme, the side wall of crossbeam still is provided with circular arc notch.

[0014] Further limit, in the above technical scheme, the thrust rod mounting support includes fixed end, first connecting end and second connecting end, one side of fixed end is provided with the first connecting end and second connecting end symmetrically, and the first connecting end and second connecting end are connected with thrust rod.

[0015] Further limit, in the above technical scheme, the first connecting end and second connecting end still are provided with lightening groove between.

[0016] The utility model discloses a beneficial effect is: the utility model provides a kind of frame of double shaft thrust rod mounting structure, frame balance shaft crossbeam is installed on frame left and right longitudinal beam, both sides thrust rod support is installed on the upper and lower connecting beam of balance shaft crossbeam, thrust rod support does not need to be installed in the middle crossbeam of balance shaft crossbeam, production process is simple, improve production efficiency;Rear suspension system is directly transmitted to frame longitudinal beam by thrust rod with force and moment, avoid balance shaft crossbeam stress concentration, promote driving stability and controllability, balance shaft crossbeam assembly failure rate reduces, vehicle form is safer and more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments described in the application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the connection schematic diagram of crossbeam, upper connecting beam and lower connecting beam in the utility model;

[0020] Figure 3 It is Figure 2 The top view structural schematic diagram of;

[0021] Figure 4 It is Figure 1 The axial schematic diagram of the connection of longitudinal beam, crossbeam, upper connecting beam and lower connecting beam in;

[0022] Figure 5 It is the structural schematic diagram of crossbeam in the utility model;

[0023] Figure 6 It is the structural schematic diagram of upper connecting beam in the utility model;

[0024] Figure 7 It is the structural schematic diagram of lower connecting beam in the utility model;

[0025] Figure 8 It is the structural schematic diagram of reinforcing plate in the utility model;

[0026] Figure 9 It is the front view structural schematic diagram of thrust rod mounting support in the utility model;

[0027] Figure 10 It is Figure 8 The front view of;

[0028] Figure 11is Figure 8 axial structure diagram.

[0029] The reference signs in the drawings are: 1, longitudinal beam, 2, upper connecting beam, 3, lower connecting beam, 4, cross beam, 5, U-shaped open slot, 6, thrust rod, 7, thrust rod mounting bracket, 7-1, fixed end, 7-2, first connecting end, 7-3, second connecting end, 7-4, weight reduction groove, 8, balance shaft, 9, balance shaft lower connecting beam, 10, frame longitudinal beam inner web, 11, frame tail cross beam, 12, circular weight reduction hole, 13, reinforcing plate, 14, circular arc notch. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0031] See Figures 1-11 As shown in a kind of frame with double shaft coupling thrust rod mounting structure shown in figure, including parallelly arranged longitudinal beam 1, the section of longitudinal beam 1 is open slot structure, upper end fixed mounting upper connecting beam 2 in longitudinal beam 1, lower end installation lower connecting beam 3 in longitudinal beam 1;Upper connecting beam 2 and lower connecting beam 3 between installation cross beam assembly;Cross beam assembly includes cross beam 4 arranged back to back, one side section of cross beam 4 is open U-shaped structure, U-shaped open slot 5 is formed in the middle of both ends of cross beam 4;The lower part of both ends of cross beam 4 is fixed on lower connecting beam 3, and the upper part of both ends of cross beam 4 is fixed on upper connecting beam 2, and one side of upper connecting beam 2 and one side of lower connecting beam 3 are both fixedly installed on the inner wall of longitudinal beam 1;Cross beam assembly is symmetrically installed double shaft coupling thrust rod assembly on both sides;Double shaft coupling thrust rod assembly includes thrust rod 6 and thrust rod mounting bracket 7;One end of thrust rod 6 on the side of cross beam assembly converges with axle connection;The other end of thrust rod 6 is fixed on upper connecting beam 2 and lower connecting beam 3 through thrust rod mounting bracket 7 after passing through U-shaped open slot 5.

[0032] Wherein, the lower end of cross beam assembly is installed balance shaft 8, and the both ends of balance shaft 8 are installed on the side wall of longitudinal beam 1 through bearing. Balance shaft 8 lower end installs balance shaft lower connecting beam 9. Longitudinal beam 1 inner side is also provided with frame longitudinal beam inner web 10. Longitudinal beam 1 end part is vertically installed frame tail cross beam 11. Cross beam 4 middle part is provided with circular weight reduction hole 12. Reinforcing plate 13 is also arranged in the inner wall of both ends of cross beam 4. Circular arc notch 14 is also formed in the side wall of cross beam 4. Thrust rod mounting bracket 7 includes fixed end 7-1, first connecting end 7-2 and second connecting end 7-3;First connecting end 7-2 and second connecting end 7-3 are symmetrically arranged on one side of fixed end 7-1, and first connecting end 7-2 and second connecting end 7-3 are both connected with thrust rod 6. Weight reduction groove 7-4 is also arranged between first connecting end 7-2 and second connecting end 7-3.

[0033] The operation principle of the vehicle frame with the double-coupling shaft thrust rod mounting structure is as follows:

[0034] The beam assembly is arranged to improve the connection strength at the position of the balance shaft, and to ensure stable output operation of the balance shaft. The double-coupling shaft thrust rod assembly is arranged on the longitudinal beam 1, so that stress concentration and cracking of the beam assembly during movement of the double-coupling shaft thrust rod assembly are avoided. The mounting is also relatively convenient, the difficulty of traditional mounting and fixing on the beam assembly is reduced, the cost is reduced, and the economic benefit is improved.

[0035] The application has the following advantages relative to the traditional vehicle frame: the balance shaft beam assembly is assembled with the longitudinal beam, the inner web plate 10 of the vehicle frame longitudinal beam, the vehicle frame transverse beam 4 and other parts to form a vehicle frame assembly; the thrust rod mounting bracket 7 is mounted on the upper and lower connecting beams on the inner side of the vehicle frame balance shaft beam assembly, and the thrust rod mounting bracket 7 does not have an assembly relationship with the transverse beam 4; the middle transverse beam of the transverse beam 4 has a front-back back-to-back structure, U-shaped open grooves 5 are arranged on both sides of the transverse beam 4, the thrust rod mounting bracket 7 can move forward and backward to be installed to the correct position; a reinforcing plate 13 is arranged on both sides below each middle transverse beam 4, the middle edge of the reinforcing plate 13 exceeds the edge of the lower connecting beam 3, and the balance shaft transverse mounting bolt passes through the lower connecting beam 3 and the reinforcing plate 13. The thrust rod mounting bracket 7 is designed symmetrically forward and backward, and the left and right parts are universal, so that the mold cost is reduced. The fixed end 7-1 of the thrust rod mounting bracket 7 is provided with 12 internal thread holes, and the bolt is tightened from the outside of the vehicle frame longitudinal beam 1 to the internal thread of the bracket, so that the disassembly and assembly are convenient.

[0036] The beam assembly and the double-coupling shaft thrust rod assembly of the application are separately mounted, the beam assembly and the longitudinal beam 1 and other parts are assembled as a whole to complete the overall assembly of the vehicle frame assembly, and then the thrust rod mounting bracket 7 is mounted. The thrust rod mounting bracket 7 is mounted on the longitudinal beam 1 and does not have an assembly relationship with the transverse beam 4, so that the installation efficiency of the transverse beam 4 can be greatly improved, many positioning tools are reduced, and the manufacturing cost is saved. The rear suspension system directly transmits the force and torque to the vehicle frame longitudinal beam 1 through the thrust rod 6, so that stress concentration of the transverse beam 4 is avoided, the driving stability and the handling are improved, the failure rate of the beam assembly is reduced, and the vehicle is safer and more reliable.

[0037] The above is only a preferred specific implementation manner of the application, but the protection scope of the application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A vehicle frame with a double-coupling thrust rod mounting structure, characterized by: It includes parallel setting longitudinal beam, the longitudinal beam section is open groove structure, the longitudinal beam inside upper end fixed installation upper connecting beam, the longitudinal beam inside lower end installation lower connecting beam, the upper connecting beam and lower connecting beam between installation crossbeam assembly, the crossbeam assembly includes back-to-back setting crossbeam, the crossbeam one side section is open U-shaped structure, the crossbeam both ends middle part is set U-shaped open slot, the crossbeam both ends lower part is fixed in lower connecting beam, the crossbeam both ends upper part is fixed in upper connecting beam, the upper connecting beam one side and lower connecting beam one side are all fixed installation in longitudinal beam inside side wall, the crossbeam assembly both sides symmetrical installation double shaft thrust rod assembly, the double shaft thrust rod assembly includes thrust rod and thrust rod installation support, the crossbeam assembly one side thrust rod one end confluence and axle connection, the other end of thrust rod passes through U-shaped open slot and is fixed in upper connecting beam and lower connecting beam through thrust rod installation support. The lower end of the crossbeam assembly is installed with a balance shaft, and the balance shaft is installed on the side wall of the longitudinal beam through bearings at both ends. The lower end of the balance shaft is installed with a balance shaft lower connecting beam.

2. The vehicle frame with a double shaft thrust rod mounting structure according to claim 1, characterized in that: The inside of the longitudinal beam is also provided with a frame longitudinal beam inner web.

3. The vehicle frame with a double shaft thrust rod mounting structure according to claim 2, characterized in that: The end of the longitudinal beam is vertically installed with a frame tail crossbeam.

4. The vehicle frame with a double shaft thrust rod mounting structure according to claim 1, characterized in that: The middle of the crossbeam is provided with a circular weight-reducing hole.

5. The vehicle frame with a double shaft thrust rod mounting structure according to claim 1, characterized in that: The inside of the crossbeam both ends is also provided with a reinforcing plate, which is respectively arranged on the inner wall of the crossbeam.

6. The vehicle frame with a double shaft thrust rod mounting structure according to claim 1, characterized in that: An arc notch is also formed on the side wall of the crossbeam.

7. The vehicle frame with a double shaft thrust rod mounting structure according to claim 1, characterized in that: The thrust rod installation support includes a fixed end, a first connecting end and a second connecting end, the fixed end one side symmetrical setting first connecting end and second connecting end, the first connecting end and second connecting end all connect thrust rod.

8. The vehicle frame with a double shaft thrust rod mounting structure according to claim 6, characterized in that: The first connecting end and the second connecting end are also provided with a weight-reducing groove.

9. The vehicle frame with a double shaft thrust rod mounting structure according to claim 1, characterized in that: ​ 10. The vehicle frame with a double shaft thrust rod mounting structure according to claim 9, characterized in that: ​

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